Intelligent comprehensive ventilation and deodorization system for full-underground space and regulation and control method

Abstract

The application relates to an intelligent comprehensive ventilation and deodorization system for a full-underground space and a regulation and control method, the system comprising an exhaust system, a supply air system, an internal circulation air system, a deodorization system, a key area sealing system, a space environment monitoring system and an intelligent control system; the exhaust system is connected with underground areas and connected with a deodorization device, the supply air system transports outdoor fresh air, the internal circulation air system connects a clean area and a smell source area to dilute odor; the sealing system isolates the smell source and is matched with a positive pressure buffer isolation area to block odor overflow; the monitoring system collects odor concentration and negative pressure data of each area in real time; the intelligent control system communicates with each subsystem, and adjusts the frequency of a fan and the opening degree of a valve according to monitoring parameters. Through the key area sealing, gradient negative pressure one-way airflow is formed, odor is diluted through internal circulation, and multiple subsystems are linked to adjust and control according to needs through frequency conversion, so that the cross-area diffusion and overflow of underground odor can be effectively prevented, system operation energy consumption is reduced, and the safety of underground operation personnel and the indoor environment comfort are ensured.

Description

Technical Field

[0001] This application relates to the field of underground building environmental control technology, and in particular to an intelligent integrated ventilation and deodorization system and control method for a fully underground space. Background Technology

[0002] With the continued scarcity of urban land resources, large-scale underground projects such as fully underground sewage treatment plants, underground garbage disposal stations, underground sewage pumping stations, and underground sludge workshops are being implemented. These spaces are buried several to tens of meters underground, are enclosed large spaces without natural ventilation, have complex functional zones, and dispersed sources of odor pollution. The indoor air environment relies entirely on mechanical ventilation and deodorization systems. At the same time, underground transformers, blowers, power distribution cabinets, and other equipment continuously generate heat, resulting in significant high-temperature problems in the machine rooms. The industry generally adopts traditional independent ventilation, deodorization, and air conditioning equipment to manage the underground environment separately.

[0003] Traditional underground space environmental management solutions employ a uniform, constant-volume ventilation model across the entire area. This traditional approach suffers from multiple systemic flaws: Traditional supply and exhaust vents lack overall zoning planning, making airflow prone to short-circuiting and eddies. Fresh air is drawn away before reaching personnel work areas, leading to the localized accumulation of malodorous gases such as hydrogen sulfide, ammonia, and VOCs underground. These gases can then spread to clean corridors, surface parks, and residential areas, causing odor nuisance. Long-term adsorption and deposition of odors in ducts and building crevices create secondary pollution sources, continuously corroding ductwork and metal equipment components, significantly shortening equipment lifespan. Traditional fans operate at a fixed frequency, 24 / 7 at full capacity for exhaust and deodorization, unable to dynamically adjust airflow based on odor concentration or personnel presence. Heat from underground equipment is directly exhausted with the exhaust air, without any heat recovery or cascade utilization methods. Even during low-load nighttime and shutdown periods, maximum ventilation is maintained, resulting in extremely high overall energy costs. Traditional systems cannot independently control the negative pressure of a single odor-producing room. In the event of equipment damage or sudden odor release, manual adjustment of the fan is the only option, resulting in a delayed response. High concentrations of odor can accumulate in confined spaces, potentially causing poisoning among workers. Short circuits in the cold air supply of equipment rooms and the accumulation of localized hot spots accelerate the aging of electrical equipment insulation, posing a fire risk in severe cases. Ventilation and deodorization systems only extract odors, while air conditioning systems independently control temperature, preventing coordinated adjustment between the two systems. Underground spaces are often hot and humid year-round, lacking integrated control mechanisms for on-demand cooling and waste heat recovery, leading to insufficient comfort and safety for workers.

[0004] In summary, existing traditional technologies cannot achieve odor source isolation, orderly airflow organization, and multi-system coordinated energy-saving control in underground spaces. The only core technical problem that urgently needs to be solved is: how to achieve airtight odor source isolation and zoned directional airflow organization in the entire underground space, and how to link ventilation, deodorization, and air conditioning systems to intelligently and dynamically adjust according to environmental parameters, so as to reduce system operating energy consumption while preventing odor leakage and eliminating the safety hazards of high temperature in the computer room. Summary of the Invention

[0005] In view of this, this application proposes an intelligent integrated ventilation and deodorization system for a fully underground space, which seals and isolates the areas in the fully underground space where odors are generated, forming an odor-generating space, and other space areas besides the odor-generating space; the system includes an exhaust system, an air supply system, an internal circulation air system, a deodorization system, a key area sealing system, a space environment monitoring system, and an intelligent control system; The key area sealing system is set in the odor-generating space, and the sealing system is equipped with an entrance and exit isolation zone. The entrance and exit isolation zone pipeline is connected to the air supply system and the internal circulation air system, so that the entrance and exit isolation zone maintains positive pressure relative to the odor-generating space to prevent odor from overflowing. The exhaust system is connected to various areas of the underground space through pipelines and is used to extract air from the underground space; the exhaust system is equipped with exhaust branch lines, which are connected to the deodorization system pipelines; The air supply system is connected to various areas of the underground space through pipelines and is used to deliver fresh air into the underground space; The internal circulation air system duct connects the non-odor-generating space and the odor-generating space, and is used to deliver clean air to the odor-generating space to dilute the odor in the odor-generating space. The deodorization system is connected to the exhaust system through pipelines and is used to purify the odorous air delivered by the exhaust system. The space environment monitoring system is installed in each underground zone to collect the concentration of odor pollutants and negative pressure parameters in the space in real time. The intelligent control system is connected to the exhaust system, air supply system, internal circulation air system, deodorization system, key area sealing system, and space environment monitoring system. It is used to adjust the frequency of the fans and the opening of the electric valves of each system in conjunction with the concentration and negative pressure parameters fed back by the space environment monitoring system.

[0006] In one possible implementation, the key area sealing system includes a sealed partition, a buffer room, and a key area, with the entrance / exit isolation area serving as the buffer room; The key area is the room where the odor-generating equipment is located. A sealed partition is set between the key area and the adjacent space to prevent the odor from spreading from the key area to the adjacent space. The entrance and exit of the buffer room are equipped with a double-layer variable frequency air curtain device. The upper variable frequency air curtain device is a fresh air curtain, and the lower variable frequency air curtain device is an internal circulation return air curtain. The door is equipped with a door magnetic sensor, which is connected to the intelligent control system. The side wall of the buffer room is equipped with a micro-pressure differential self-balancing one-way pressure relief valve, and the bottom of the sealed partition is equipped with a sewage ditch, which is equipped with an electric sewage discharge valve. The buffer room is located at the entrance and exit of the key area where personnel enter and exit from the outside. The buffer room is connected to the air supply system and the internal circulation system through pipelines. The air supply system continuously supplies fresh air to the buffer room, and the internal circulation system draws the air from the buffer room to the key area. By relying on the continuous replenishment of fresh air to be greater than the air volume drawn out by the internal circulation system, the buffer room maintains positive pressure relative to the key area. The key area is continuously ventilated through pipelines and the exhaust system to maintain negative pressure.

[0007] In one possible implementation, the exhaust branch of the exhaust system is divided into two branches: one branch is directly connected to the outdoor exhaust tower through a pipe, and the other branch is connected to the deodorization system through a pipe. Electric valves are installed on the two branch pipes respectively. By adjusting the opening of the electric valves, the ratio of the air volume of odorous air discharged into the outdoor exhaust tower to the air volume sent to the deodorization system for purification is controlled. The deodorization system is equipped with an exhaust gas return branch at the end, which is connected to the main pipeline of the internal circulation air system. The internal circulation air system pipeline integrates a plate air heat exchanger to recover exhaust waste heat and reuse the deodorized and cleaned exhaust gas to dilute the odor source.

[0008] In one possible implementation, an outdoor meteorological sensing subunit is also included, which contains sensors for wind speed, wind direction, atmospheric inversion, and atmospheric pressure. The meteorological sensing subunit is communicatively connected to the intelligent control system. The intelligent control system can combine meteorological data collected by the meteorological sensing subunit and parameters fed back by the space environment monitoring system for linkage and regulation. When meteorological conditions that are not conducive to exhaust gas diffusion are identified, it switches to the full deodorization and exhaust mode. When the concentration of pollutants in a certain area increases, the intelligent control system increases the opening degree of the electric valve of the corresponding area exhaust branch pipe and the frequency of the exhaust fan in the exhaust system, while increasing the air volume supplied to the area by the internal circulation air system. When the negative pressure value in a certain area deviates from the target range, the intelligent control system adjusts the frequency of the air supply fan in the air supply system and the opening degree of the electric valve of the corresponding air supply branch pipe.

[0009] In one possible implementation, a heat pump air conditioning system is also included, which is connected to various areas of the underground space through pipelines and is used to provide cooling or heating to each area. The intelligent control system communicates with the heat pump air conditioning system and adjusts the operating status of the heat pump air conditioning system in conjunction with the temperature and humidity parameters fed back by the space environment monitoring system.

[0010] In one possible implementation, the space environment monitoring system includes odor source monitors, temperature and humidity sensors, and space negative pressure monitors installed in various areas of the underground space. Odor source monitors include one or more of the following: hydrogen sulfide monitors, ammonia monitors, and volatile organic compound monitors.

[0011] In one possible implementation, a first air supply duct and a first internal circulation duct are provided in the buffer room. The air intake of the first internal circulation duct is located at a relatively low position in the buffer room, and the air outlet of the first air supply duct is located at a relatively high position in the buffer room. The key area is equipped with a second air supply duct, an exhaust duct, and a second internal circulation duct. The air outlets of the second air supply duct and the second internal circulation duct are located at relatively high positions in the key area, and the air intake of the exhaust duct is also located at a relatively high position in the key area.

[0012] This application also provides a method for intelligent integrated ventilation and odor control in a fully underground space, including the following steps: The space environment monitoring system collects the odor pollutant concentration and negative pressure values ​​of various areas in the underground space in real time, and sends the collected odor pollutant concentration and negative pressure values ​​to the intelligent control system to obtain real-time monitoring data of each area; The intelligent control system receives real-time monitoring data from each area and compares the real-time monitoring data of each area with the preset target values ​​of pollutant concentration and negative pressure for the corresponding area. It then determines whether the odor pollutant concentration and negative pressure values ​​of each area deviate from the corresponding target values ​​and obtains the deviation judgment results for each area. Based on the deviation judgment results of each area, the intelligent control system generates control commands for the exhaust system, air supply system and internal circulation system of each area. The control commands include fan frequency adjustment values ​​and electric valve opening adjustment values, thus obtaining control commands for each subsystem. The intelligent control system sends control commands from each subsystem to the corresponding exhaust system, supply system, and internal circulation system. The exhaust system, supply system, and internal circulation system adjust their respective fan frequencies and electric valve openings according to the received control commands to obtain the adjusted operating status of each subsystem.

[0013] In one possible implementation, the space environment monitoring system collects real-time odor pollutant concentration values ​​and negative pressure values ​​in various areas of the underground space, and sends the collected odor pollutant concentration values ​​and negative pressure values ​​to the intelligent control system. Obtaining real-time monitoring data for each area includes the following steps: The space environment monitoring system collects the concentration values ​​of odor pollutants in each area of ​​the underground space by installing odor source monitors in each area of ​​the underground space, and collects the negative pressure values ​​in each area by installing negative pressure monitors in each area of ​​the underground space, thus obtaining the raw data collected in each area. The space environment monitoring system converts the raw data collected from each region into monitoring signals in a standard format, thus obtaining the monitoring signals for each region; The space environment monitoring system transmits monitoring signals from each region to the intelligent control system via a communication network, thereby obtaining real-time monitoring data for each region.

[0014] In one possible implementation, the intelligent control system generates control commands for the exhaust system, supply system, and internal circulation system of each area based on the deviation judgment results of each area. The control commands include fan frequency adjustment values ​​and electric valve opening adjustment values. Obtaining the control commands for each subsystem includes the following steps: The intelligent control system identifies areas with positive deviations in pollutant concentration based on the deviation judgment results of each area, and generates exhaust ventilation enhancement commands and internal circulation ventilation enhancement commands for that area. The exhaust ventilation enhancement command includes an increase in the frequency of the exhaust fan and an increase in the opening of the exhaust electric valve in the corresponding area. The internal circulation ventilation enhancement command includes an increase in the frequency of the internal circulation fan and an increase in the opening of the internal circulation electric valve in the corresponding area, thus obtaining the enhanced control commands for the polluted area. Based on the deviation judgment results of each area, the intelligent control system identifies the area with negative pressure deviation and generates the air supply adjustment command for that area. The air supply adjustment command includes the frequency adjustment value of the air supply fan and the opening adjustment value of the corresponding area's air supply electric valve, thus obtaining the air supply control command for the area with negative pressure deviation. The intelligent control system merges the enhanced control commands for the polluted area and the air supply control commands for the negative pressure deviation area to generate a set of control commands that are executed synchronously by each subsystem, thus obtaining the control commands for each subsystem.

[0015] The beneficial effects of this invention are: This intelligent integrated ventilation and deodorization system for underground spaces constructs a positive pressure barrier through a key area sealing system combined with an entrance isolation zone. This, along with an internal circulation system, directs clean air into the odor-generating space, creating a directional airflow to curb the cross-area diffusion of odors at its source. Simultaneously, a space environment monitoring system collects odor concentration and negative pressure data in real time and uploads it to the intelligent control system. The intelligent control system then adjusts the fan frequencies and electric valve openings of the exhaust, supply, internal circulation, and deodorization systems in a coordinated manner. Combined with exhaust branch lines, odor-laden air can be sent to the deodorization system for purification. This achieves dynamic adaptation of airflow according to the degree of pollution, eliminating the need for continuous full-load ventilation. It solves the problems of turbulent airflow, odor overflow, and delayed leak handling associated with traditional equipment, significantly reducing overall energy consumption for ventilation and deodorization while stabilizing the underground space air environment and ensuring the safety and comfort of workers. Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0017] Figure 1 This diagram shows a block diagram of an intelligent integrated ventilation and deodorization system for a fully underground space, according to an embodiment of this application. Figure 2This diagram shows the main structure of the intelligent integrated ventilation and deodorization system for a fully underground space, according to an embodiment of this application. Figure 3 This illustration shows a floor plan of the blower room ventilation and air conditioning system used in the intelligent integrated ventilation and deodorization system for fully underground spaces, as described in this application embodiment. Figure 4 A partial diagram showing the intelligent control system applied in the fully underground space intelligent integrated ventilation and deodorization system according to an embodiment of this application; Figure 5 A flowchart illustrating the intelligent integrated ventilation and deodorization control method for a fully underground space according to an embodiment of this application is shown. Detailed Implementation Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0018] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application or to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0021] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0022] The fully underground space intelligent integrated ventilation and deodorization system and regulation method of the present application is a complete set of zoning negative pressure type multi-system linkage intelligent odor control solution for underground spaces, which is applied in the field of underground building environment treatment and improvement. It solves the problems existing in current enclosed underground spaces such as waste treatment plants: no zoning sealing partition design, odor-generating areas such as grid chambers and sludge dewatering rooms are arranged openly, and odor is continuously extracted and diluted by large full-domain fans; the ventilation, deodorization and air conditioning systems are independent of each other with no linkage control logic, and the fans run at full constant load throughout the year; abnormal working conditions such as odor leakage and high temperature in the machine room are only found through manual on-site inspection, and there is no full-domain real-time multi-dimensional monitoring and automatic regulation mechanism. This solution has the functions of blocking odor diffusion at the source, performing dynamic on-demand ventilation and deodorization, saving energy, and ensuring the safety and comfort of underground operations.

[0023] The implementation of the present application specifically refers to Figures 1-5 . For example Figure 1 shows a specific embodiment of the fully underground space intelligent integrated ventilation and deodorization system according to the present application, in which the odor-generating areas in the entire underground space are sealed and isolated to form odor-generating spaces and other space areas except the odor-generating spaces. The fully underground space intelligent integrated ventilation and deodorization system 100 includes an exhaust air system 110, an air supply system 120, an internal circulating air system 130, a deodorization system 140, a key area sealing system 150, a space environment monitoring system 160, and an intelligent control system 170.

[0024] Specifically, the fully underground space intelligent integrated ventilation and deodorization system 100 is constructed by combining the exhaust air system 110, the air supply system 120, the internal circulating air system 130, the deodorization system 140, the key area sealing system 150, the space environment monitoring system 160, and the intelligent control system 170. All the subsystems form a fluid communication network through air ducts, and all the subsystems establish a signal communication link with the intelligent control system 170. For different odor-generating underground spaces such as underground sewage plants, sludge workshops, and underground pumping stations, all or part of the subsystems can be selected and assembled as required. Each subsystem is independently equipped with a fan, a zoning electric valve, and pipeline components, and is arranged in corresponding functional areas underground. The entire system is uniformly coordinated and scheduled by the intelligent control system 170, forming an integrated ventilation and deodorization hardware architecture integrating odor sealing, air distribution, air purification, environment perception, and automatic regulation. The modular combined architecture is suitable for all kinds of fully underground odor-generating spaces, and equipment can be flexibly selected according to the on-site pollution level and space scale, with strong adaptability. The seven subsystems have clear divisions of labor, with dual linkage of air paths and electric control, fully covering the entire process of odor blocking, fresh air supply, internal air circulation, waste gas purification, environment monitoring, and intelligent regulation, forming a closed-loop treatment system.

[0025] The key area sealing system 150 is set in the odor-generating space, and the sealing system is equipped with an entrance and exit isolation zone. The entrance and exit isolation zone pipeline is connected to the air supply system 120 and the internal circulation air system 130, so that the entrance and exit isolation zone maintains positive pressure relative to the odor-generating space to prevent odor from overflowing.

[0026] Specifically, the key area sealing system 150 is equipped with a sealed partition around the odor-generating space and a buffer-type entrance and exit isolation zone. The isolation zone is connected to the air supply system 120 and the internal circulation air system 130 through independent pipelines. The air supply system 120 continuously supplies fresh air into the isolation zone to form a basic air volume replenishment. Then, the internal circulation air system 130 directionally transports the air in the isolation zone into the odor-generating space. Relying on the air volume difference between the fresh air supply volume and the internal circulation extraction volume, the entrance and exit isolation zone maintains a stable positive air pressure relative to the odor-generating space. The pressure difference forms a unidirectional airflow barrier. The entire process can automatically block the odor from escaping from the odor-generating space through the personnel passage without the need for repeated manual pressure calibration. Even when people open the door to pass through, the risk of odor overflow is greatly reduced. The path of odor diffusion across areas is cut off at the source, reducing the accumulation of odor in underground cleaning areas, and reducing the problems of duct corrosion and ground odor nuisance.

[0027] The exhaust system 110 is connected to various areas of the underground space via pipelines and is used to extract air from the underground space. The exhaust system 110 is equipped with exhaust branch lines, which are connected to the deodorization system 140 via pipelines.

[0028] Specifically, multi-branch ductwork is laid underground to all functional zones, with each zone's branch pipes equipped with independent electric regulating valves. The main exhaust pipe branches into two exhaust branches: one directly connects to an outdoor exhaust tower for direct exhaust, and the other connects to the front end of the 140 deodorization system. Both branches are equipped with electric valves, using valve opening to switch and allocate direct exhaust and purified airflow. Each branch is equipped with a variable frequency exhaust fan and an airflow sensor. Indoor air can be independently extracted by zone; when odor concentration is low, some air is directly exhausted to reduce the deodorization load; when odor exceeds the standard, all air is sent to the purification equipment, flexibly adapting to operating conditions. This allows for individual control of zoned airflow, avoiding energy waste caused by simultaneous full exhaust across the entire area.

[0029] The air supply system 120 is connected to various areas of the underground space through pipelines and is used to deliver fresh air to the underground space.

[0030] Specifically, after passing through a primary filter, outdoor fresh air is distributed through branch pipes from the main duct to all areas including the underground corridor, buffer room 154, and equipment area. Each branch pipe is equipped with an electric valve and a variable frequency fan, with air outlets located at the top of the area. Fresh air meeting standards is supplied to the underground area as needed to maintain adequate fresh air for personnel. In conjunction with zoned valves to regulate airflow, the system helps establish target negative pressure gradients in each area, replenishing clean air at the source and suppressing the accumulation of odors.

[0031] The internal circulation air system 130 pipeline connects the non-odor-generating space and the odor-generating space, and is used to deliver clean air to the odor-generating space to dilute the odor in the odor-generating space.

[0032] Specifically, the internal circulation air system 130 is equipped with independent circulation ducts. One end of the duct is laid in the odorless clean corridor, ordinary equipment room and other non-odor-generating spaces, while the other end extends to the odor-generating spaces such as grilles and sludge equipment. The duct is equipped with a variable frequency internal circulation fan and a zone electric regulating valve. During operation, it continuously draws room temperature clean air from the clean area and delivers it to the upper part of the odor-generating space. The clean air is fully mixed and diluted with the high concentration of odor, reducing the concentration of pollutants such as hydrogen sulfide and ammonia in the space. There is no need to continuously draw a large amount of outdoor fresh air, reducing the energy consumption caused by fresh air filtration and temperature control. At the same time, it creates a directional airflow from the clean area to the odor-generating area, preventing odor from flowing back into the clean area where people are active. It blocks the cross-area diffusion of odor from the airflow path level and improves the overall stability of the underground air environment.

[0033] The deodorization system 140 is connected to the exhaust system 110 through a pipeline and is used to purify the odorous air delivered by the exhaust system 110.

[0034] Specifically, the front-end collection duct connects to the exhaust purification branch, internally integrating single or multi-stage purification units such as water washing, biological trickling filtration, and activated carbon adsorption, and is equipped with a variable frequency deodorizing exhaust fan. The rear end connects to an outdoor exhaust tower for compliant emissions. It performs multi-stage purification of polluted air containing hydrogen sulfide, ammonia, and VOCs, ensuring the treated exhaust gas meets outdoor emission standards. The fan speed is adjusted according to the odor concentration, reducing power during low-pollution periods to minimize purification energy consumption.

[0035] The Space Environment Monitoring System 160 is installed in each underground zone to collect real-time data on regional odor pollutant concentrations and spatial negative pressure parameters.

[0036] Specifically, monitoring points are simultaneously deployed in each underground zone. These points are equipped with hydrogen sulfide, ammonia, and VOC odor source detectors, as well as negative pressure sensors, to collect real-time data on regional odor concentration and negative pressure values. The data is then uploaded to the intelligent control system 170 via wired / wireless communication. This system enables real-time detection of underground odor leaks and negative pressure imbalances across the entire area, allowing for the immediate identification of environmental hazards without manual inspections, and providing precise data for dynamic system adjustments.

[0037] The intelligent control system 170 is connected to the exhaust system 110, the air supply system 120, the internal circulation air system 130, the deodorization system 140, the key area sealing system 150, and the space environment monitoring system 160, respectively. It is used to adjust the frequency of the fans and the opening of the electric valves of each system in conjunction with the concentration and negative pressure parameters fed back by the space environment monitoring system 160.

[0038] Specifically, the intelligent control system 170 consists of an intelligent automatic control cabinet 171 and an intelligent central control system 172. Communication lines connect to exhaust, supply, internal circulation, deodorization, and sealing valves, as well as all monitoring equipment. It has built-in preset concentration and negative pressure thresholds. After receiving monitoring data, it automatically compares deviations and issues commands to synchronously adjust the operating frequency of each fan and the opening of each branch pipe electric valve. If odor exceeds the standard, it automatically increases the exhaust and internal circulation airflow; if negative pressure deviates, it corrects the supply airflow in real time. This achieves fully automated and coordinated control of the entire system, eliminating the need for manual on-site operation. It matches the ventilation and deodorization airflow according to the real-time underground pollution level and negative pressure status, abandoning the traditional 24-hour constant full-load operation mode and reducing overall energy consumption. In the event of a sudden odor leak, it automatically activates enhanced ventilation to avoid the risk of poisoning of personnel in confined spaces.

[0039] Furthermore, such as Figure 1 As shown, the key area sealing system 150 first physically isolates the underground odor-generating area. Relying on the air supply system 120 and the internal circulation air system 130, a positive pressure barrier is established relative to the odor-generating space in the entrance isolation area to suppress the outward diffusion of odor from the source. The space environment monitoring system 160 continuously collects the odor concentration and negative pressure parameters of each zone and transmits the data to the intelligent control system 170. The intelligent control system 170 calculates and outputs control commands based on the monitoring data, and adjusts the frequency of the fans and the opening of the branch electric valves of the exhaust system 110, the air supply system 120, and the internal circulation air system 130 in a coordinated manner. The odor-containing air extracted by the exhaust system 110 can be sent to the deodorization system 140 through the exhaust branch to complete the purification treatment. At the same time, the internal circulation air system 130 continuously delivers clean air from the area to the odor-generating area to dilute the odor concentration. Through the closed-loop operation of "source sealing and blocking, real-time environmental perception, dynamic parameter adjustment of multiple air paths, and end-point odor purification", the automated and coordinated control of ventilation and deodorization in the underground space is realized.

[0040] Specifically, this application addresses existing underground ventilation and deodorization systems 140 and localized high-temperature spaces by providing a fully underground intelligent integrated ventilation and deodorization system 100. Through intelligent automatic control, it achieves dynamic on-demand airflow adjustment, independent negative pressure control in different zones, and localized enhanced exhaust linked to odor concentration. This ensures air quality while minimizing landscape interference from surface ventilation structures, improving comfort and safety in activity areas. The system integrates multiple subsystems with intelligent collaborative control, achieving orderly airflow organization, efficient odor source collection and treatment, and on-demand energy supply. It also significantly improves both indoor and outdoor environments and reduces operating energy consumption. This technology is not limited to specific building types; it can be applied to any underground space with odors or high-temperature environments (such as sewage treatment facilities), offering strong applicability and stable treatment, ultimately achieving a win-win goal of "efficient underground treatment and high-quality living both above and below ground."

[0041] Furthermore, such as Figure 2As shown, in view of the deficiencies in the prior art, the purpose of this invention is to provide an intelligent integrated ventilation and deodorization system 100 for a fully underground space.

[0042] According to the present application, a fully underground space intelligent integrated ventilation and deodorization system 100 includes an exhaust system 110, an air supply system 120, an internal circulation air system 130, a deodorization system 140, a key area sealing system 150, a heat pump air conditioning system 180, a space environment monitoring system 160, and an intelligent control system 170. The exhaust system 110 includes exhaust louvers 111, exhaust electric valve 112, exhaust duct 113, air volume sensor 114, exhaust fan 115, and terminal function electric valve 116.

[0043] The exhaust system 110 is used to exhaust and ventilate the ambient air in the underground space to ensure air quality. Its exhaust ducts are equipped with controllable electric valves, allowing for dynamic adjustment of the exhaust flow rate.

[0044] The exhaust main pipe of the exhaust system 110 can either be directly connected to the outdoor exhaust tower or connected to the deodorization system 140. The exhaust air containing odor is sent to the deodorization system 140 for purification and then discharged. The ratio can be adjusted by an electric valve.

[0045] The air supply system 120 includes a primary filter 121, an air supply fan 122, an air supply duct 123, an air volume sensor 124, an air supply electric valve 125, and an air supply louver 126.

[0046] The air supply system 120 is used to deliver fresh air to the underground space to ensure the personnel activities required by regulations.

[0047] A controllable electric valve is also installed on the air supply duct to distribute the air supply volume as needed based on the negative pressure of the space.

[0048] The internal circulation air system 130 includes internal circulation air louvers 131, internal circulation air duct 132, internal circulation electric valve 133, internal circulation fan 134, and air volume sensor 135.

[0049] The internal circulation air system 130 is configured to transport air from non-odor-generating spaces (such as personnel corridors, equipment rooms, and other relatively clean areas) to odor-generating spaces (such as bar screen rooms, sludge dewatering rooms, etc.), using clean air to dilute the odor concentration, while reducing reliance on external fresh air and lowering the system load.

[0050] The deodorization system 140 includes deodorizing louvers 141, deodorizing electric valve 142, deodorizing collection duct 143, air volume sensor 144, integrated deodorization facility 145, and outdoor exhaust tower 146.

[0051] The deodorization system 140 is used to collect odors from odor-generating equipment and spaces. Its fan adopts frequency conversion control and adjusts the operating frequency in real time according to the concentration of odor pollution in the space (such as hydrogen sulfide, ammonia, volatile organic compounds, etc.) to ensure that the space environment meets the standards and the working needs of personnel.

[0052] The integrated deodorization facility 145 consists of one or more combinations of deodorization fans, water washing / chemical washing units, biological trickling filter units, and activated carbon adsorption units, and can be set according to the actual pollution load.

[0053] The key area sealing system 150 includes a sealed partition 151, an observation window 152, a zone airtight door 153, a buffer room 154, a waste passage 155, and a key area 156.

[0054] The critical area sealing system 150 is used to isolate and seal the equipment room where odors are generated, and an intermediate buffer room 154 is set at the entrance of the room. Personnel enter the equipment room from the outside through the buffer room 154. The buffer room 154 is equipped with a first air supply duct and a first internal air circulation duct to maintain a positive pressure in the buffer room 154 relative to the equipment room and prevent odors from escaping.

[0055] The buffer room 154 includes air supply ducts and internal circulation ducts. The internal circulation air intake is located at a relatively low position, while the air supply duct is located at a relatively high position inside, ensuring that fresh air can be delivered efficiently and forming an effective airflow organization.

[0056] The waste passage 155 includes an air supply duct and an internal circulation duct. The air supply duct and the internal circulation duct are arranged at relatively high positions and spaced apart to ensure efficient delivery of fresh air and form an effective airflow organization.

[0057] Key area 156 includes a second air supply duct, an exhaust system 110, and a second internal circulation air duct. The second air supply duct and the second internal circulation air duct are located at relatively high positions, and the exhaust duct is located at a relatively high position inside the building, to ensure that fresh air can be delivered efficiently and form an effective airflow organization.

[0058] The heat pump air conditioning system 180 includes a heat pump unit 181, an air conditioning water system 182, an air conditioning unit 183, an air conditioning duct 184, and an air conditioning controller 185.

[0059] The heat pump air conditioning system 180 is used to provide cooling in summer for functional areas such as equipment rooms, power distribution rooms, and personnel activity areas in underground spaces, as well as heating in some functional areas in winter, to maintain a comfortable temperature in the work, living, and entertainment areas for personnel.

[0060] The space environment monitoring system 160 specifically includes: an odor source monitor 161, a temperature and humidity sensor 162, and a space negative pressure monitor 163.

[0061] Odor source detector 161 includes, but is not limited to, hydrogen sulfide detectors, ammonia detectors, volatile organic compound detectors, etc.

[0062] The intelligent control system 170 includes an intelligent automatic control cabinet 171 and an intelligent central control system 172, which are respectively connected to the exhaust system 110, the air supply system 120, the internal circulation air system 130, the deodorization system 140, the heat pump air conditioning system 180, the key area sealing system 150, and the space environment monitoring system 160.

[0063] The intelligent control system 170 automatically performs interlocking opening and closing and opening degree adjustment of electric valves in each subsystem based on the pollutant concentration, negative pressure, temperature and humidity parameters of each area fed back by the space environment monitoring system 160, and in combination with the preset target values ​​of multiple parameters such as pollutant concentration, temperature and humidity, and negative pressure gradient of each area. This achieves dynamic and coordinated control of exhaust, air supply, deodorization, internal circulation and heat pump air conditioning system 180, realizing comprehensive ventilation and deodorization intelligent regulation of the entire underground space.

[0064] Furthermore, a fully underground intelligent integrated ventilation and deodorization system 100 is configured with various combinations of exhaust system 110, air supply system 120, internal circulation air system 130, deodorization system 140, heat pump air conditioning system 180, key area sealing system 150 and space environment monitoring system 160 according to regional needs. It can be flexibly set to operate efficiently and energy-savingly according to the actual pollution level and the needs of indoor staff and outdoor public.

[0065] A fully underground space intelligent integrated ventilation and deodorization system 100 includes the following steps: S1: Based on the actual needs of each room, one or more combinations of exhaust system 110, supply air system 120, internal circulation air system 130, deodorization system 140, heat pump air conditioning system 180, key area sealing system 150 and space environment monitoring system 160 are applied to meet the room air quality and temperature and humidity requirements, so as to meet the needs of personnel activities and working environment.

[0066] S2: Based on the actual needs of each room, set target values ​​for pollutant concentration, negative pressure, temperature and humidity. The intelligent automatic control system dynamically adjusts the frequency of each fan and the opening of the electric valve to keep the monitoring parameters in the room within the set range.

[0067] S3: After the system has been adjusted and stabilized, compare the difference between the set value and the measured value. If the error is within 10%, it is reasonable. If the error is large, the setting can be adjusted based on the measured value. According to the actual application case, the negative pressure value reference value is between -50Pa and -5Pa.

[0068] S4: When there are situations such as equipment maintenance, equipment damage, or odor leakage in a local area, and it is necessary to increase the negative pressure in a local area, adjustments can be made from the intelligent control system 170 or the field control cabinet to achieve stable air supply and exhaust while ensuring that odor does not overflow from the space.

[0069] Furthermore, in step S4, when there are situations such as equipment maintenance, equipment damage, or odor emission in a local area, and no personnel promptly detect and handle them, causing accumulation to reach the warning value of the detection system (temperature, hydrogen sulfide concentration, ammonia concentration, etc.), the intelligent control system 170 will automatically adjust the local ventilation and deodorization system 140 to achieve efficient and intelligent air environment improvement, ensuring the comfort and safety of personnel's activities and working environment.

[0070] In one possible implementation, the key area sealing system 150 includes a sealing partition 151, a buffer room 154, and a key area 156, with the buffer room 154 serving as the entrance / exit isolation zone. The key area 156 is the room containing odor-generating equipment. The sealing partition 151 is positioned between the key area 156 and adjacent spaces to prevent odors from spreading from the key area 156 to adjacent spaces. The entrance / exit of the buffer room 154 is equipped with a double-layered variable frequency air curtain device; the upper variable frequency air curtain is a fresh air curtain, and the lower variable frequency air curtain is an internal circulation return air curtain. The door is equipped with a magnetic door sensor, which is communicatively connected to the intelligent control system. A micro-pressure differential self-balancing one-way pressure relief valve is installed on the side wall of the buffer room, and a drainage ditch is installed at the bottom of the sealing partition 151, equipped with an electric drainage valve. The buffer room 154 is located at the entrance / exit of the key area 156 for personnel entering and exiting from the outside. The buffer room 154 is connected to the air supply system 120 and the internal circulation air system 130 through pipelines. The air supply system 120 continuously supplies fresh air to the buffer room 154, and the internal circulation air system 130 draws the air from the buffer room 154 to the key area 156. The buffer room 154 maintains a positive pressure relative to the key area 156 by relying on the continuous replenishment of fresh air that is greater than the internal circulation air extraction volume. The key area 156 is continuously ventilated through the exhaust system 110 and maintains a negative pressure.

[0071] Specifically, the key area sealing system 150 in this embodiment is composed of a sealing partition 151, a buffer room 154, and an odor generating equipment room, i.e., the key area 156. The sealing partition 151 completely separates the key area 156 from the surrounding underground corridor, equipment room, and other adjacent spaces. The buffer room 154 is arranged at the entrance and exit of the key area as an isolation zone for personnel passage. The buffer passage door is equipped with a door magnetic sensor and establishes communication with the intelligent control system 170. The entrance and exit of the buffer room 154 are equipped with an upper fresh air frequency conversion air curtain and a lower internal circulation return air frequency conversion air curtain to form a double-layer air curtain device. The buffer side wall is equipped with a micro-pressure differential self-balancing one-way pressure relief valve. A sewage ditch is opened at the bottom of the sealing partition 151 and equipped with a timed electric sewage valve. The buffer room 154 is connected to two sets of pipelines: the air supply system 120 and the internal circulation system 130. During operation, the air supply system 120 continuously supplies fresh air to the buffer room, while the internal circulation system 130 continuously draws air from the buffer room and sends it to the key area 156. A stable pressure difference is formed by the air volume difference between the fresh air supply and the air volume draw, maintaining a positive pressure state in the buffer room relative to the odor-producing room. At the same time, the exhaust system 110 continuously draws air from the key area to create a negative pressure state. When the door magnet detects a door opening signal, the intelligent control system 170 automatically increases the power of the double-layer air curtain fan to 110%~130% of the rated power to form a completely closed isolation air wall. After the door is completely closed, the power automatically drops to 30% of the rated power to maintain the basic air curtain. For protection, when the pressure difference between buffer room 154 and key area 156 exceeds the preset threshold of 8~15Pa, the micro-pressure differential self-balancing pressure relief valve automatically releases air into the odor-generating space to achieve automatic pressure differential calibration. The odor condensed on the partition wall due to the high humidity environment dissolves the sewage and flows into the sewage ditch. The electric sewage valve opens at regular intervals to discharge the sewage into the factory's sewage pool. This integrated sealing structure relies on physical isolation, dynamic double-layer air curtain, automatic pressure differential regulation, and sewage collection and discharge for multiple protections to completely solve the industry pain point of odor backflow when personnel open the door. There is no need for manual on-site calibration of air pressure or cleaning of accumulated water. It stably forms a one-way airflow from the clean area to the odor-generating area, preventing odor from flowing across areas from the source and reducing the risk of air duct corrosion and odor nuisance to residents around the factory.

[0072] In one possible implementation, the exhaust system 110 has two branches: one directly connected to an outdoor exhaust tower via a pipe, and the other connected to the deodorization system 140 via a pipe. Each branch is equipped with an electric valve, which controls the ratio of odorous air discharged into the outdoor exhaust tower to the air supplied to the deodorization system 140 for purification by adjusting the valve's opening. The deodorization system 140 has a tail gas return branch at its end, connected to the main pipeline of the internal circulation system 130. The internal circulation system 130 integrates a plate-type air heat exchanger to recover exhaust heat and reuse the purified tail gas to dilute the odor source.

[0073] Specifically, in this embodiment, the main exhaust system 110 is divided into two independent exhaust branches. One branch connects directly to the outdoor exhaust tower, and the other connects to the front end of the deodorization system. Each branch is equipped with an independent electric regulating valve. At the end of the deodorization equipment, a tail gas return branch is added to connect to the main internal circulation air system 130. All internal circulation air ducts are integrated with plate air heat exchangers. During system operation, the intelligent control system 170 adjusts the valve opening of the two branches according to the real-time odor concentration, flexibly allocating the proportion of odorous air volume between the direct exhaust tower and the air volume supplied to the deodorization equipment. Under low odor load conditions, the air volume of the deodorization branch is reduced to reduce the energy consumption of chemicals and fans. Under conditions where the odor exceeds the standard, the system switches to full purification mode. The internal circulation air system 130 adopts a zoned, staggered operation strategy. At most two odor-generating areas will operate at full load during the same period, while the remaining areas will remain in standby with low air volume. In winter, the plate heat exchanger recovers the waste heat from the exhaust air in the machine room to preheat the circulating airflow, keeping the temperature of the deodorizing biological filter material stable at 18~28℃ to ensure the activity of microbial degradation. In summer, the odor-generating hot air is used to assist the heat pump evaporator to improve the cooling and heat exchange efficiency. During periods of low odor, the clean exhaust gas after deodorization and purification is directly used to replace the outdoor fresh air and be sent into the odor-generating space to dilute the odor. This reduces the energy consumption of outdoor fresh air extraction, filtration, and temperature and humidity treatment. It breaks the limitations of the traditional ventilation, deodorization, and air conditioning systems, which are independent and separate in terms of air path and heat. It simultaneously achieves multiple energy-saving effects such as odor dilution, waste heat recovery, and resource reuse of purified exhaust gas. The overall operating energy consumption can be reduced by more than 30% compared with the traditional single internal circulation scheme.

[0074] In one possible implementation, an outdoor meteorological sensing subunit is also included. This subunit contains sensors for wind speed, wind direction, atmospheric inversion, and atmospheric pressure. The meteorological sensing subunit is communicatively connected to the intelligent control system 170. The intelligent control system 170 can coordinate and regulate the system based on meteorological data collected by the meteorological sensing subunit and parameters fed back from the space environment monitoring system. When meteorological conditions unfavorable to exhaust gas dispersion are identified, the system switches to a full deodorization exhaust mode. When the pollutant concentration in a certain area increases, the intelligent control system 170 increases the opening degree of the electric valve of the corresponding area's exhaust branch pipe in the exhaust system 110 and the frequency of the exhaust fan, while simultaneously increasing the air volume supplied to that area by the internal circulation air system 130. When the negative pressure value in a certain area deviates from the target range, the intelligent control system 170 adjusts the frequency of the supply fan in the supply air system 120 and the opening degree of the electric valve of the corresponding area's supply air branch pipe.

[0075] Specifically, this embodiment adds an outdoor meteorological sensing subunit, integrating four types of sensors: wind speed, wind direction, atmospheric inversion, and atmospheric pressure. It communicates with the intelligent control system 170. The control system incorporates time-series prediction and triple-target weighted optimization coupled computational logic. During operation, it simultaneously receives outdoor meteorological data, odor concentrations in various underground zones, and real-time monitoring data of negative pressure in the space for comprehensive calculation. When meteorological conditions such as calm winds or atmospheric inversions are identified, which are unfavorable for the outward diffusion of exhaust gases, the system automatically closes the electric valve of the direct exhaust branch, sending all odor-containing air into the deodorization equipment for treatment. Simultaneously, the negative pressure in the odor-producing area is lowered to -40~-50Pa to enhance odor collection. The system retrieves 24 hours of continuous historical operating data, predicts the peak odor concentration 30 minutes in advance, and pre-adjusts the frequency of exhaust and internal circulation fans and the opening of branch valves, achieving proactive feedforward control rather than traditional passive remediation after exceeding standards. During the control process, it simultaneously weights and constrains the dynamic balance of three core indicators: exhaust gas emission compliance, overall system energy consumption, and temperature and humidity in the personnel area. When an increase in regional odor pollutant concentration is detected, the corresponding exhaust branch valve is opened simultaneously, and the output of the exhaust and internal circulation fans is increased to enhance extraction and dilution. When the negative pressure of a zone deviates from the preset range, the corresponding supply fan and supply branch valve are adjusted independently to correct the air pressure. This meteorological coupled AI prediction and linkage logic is different from the industry's single threshold interlocking control mode. It can avoid odor peaks and exhaust gas accumulation and disturbance to residents in advance, reduce the long-term ineffective operation of fans at full load, and simultaneously take into account three types of needs: environmental compliance, equipment energy saving, and personnel comfort, thereby improving the system's response speed and comprehensive control accuracy.

[0076] In one possible implementation, a heat pump air conditioning system 180 is also included. The heat pump air conditioning system 180 is connected to various areas of the underground space through pipelines and is used to provide cooling or heating to each area. The intelligent control system 170 is communicatively connected to the heat pump air conditioning system 180 and adjusts the operating status of the heat pump air conditioning system 180 in conjunction with the temperature and humidity parameters fed back by the space environment monitoring system 160.

[0077] Specifically, in this embodiment, heat pump air conditioning pipelines are laid to various underground zones. The temperature and humidity sensors of the space environment monitoring system 160 collect temperature and humidity data from each zone and transmit them to the intelligent control system 170. The control system establishes communication with the heat pump air conditioning system and automatically starts and stops the unit, adjusts the cooling / heating power and air volume based on the measured temperature and humidity, and operates in coordination with the ventilation and deodorization process. This addresses the shortcomings of the traditional ventilation and deodorization system 140 in controlling temperature and humidity. It can not only cool down the electrical room to avoid the risk of high-temperature fires, but also improve the hot and humid environment in the personnel work area, achieving integrated control of air odor control and temperature and humidity environment management.

[0078] In one possible implementation, the space environment monitoring system 160 includes odor source monitors, temperature and humidity sensors, and space negative pressure monitors installed in various areas of the underground space. The odor source monitors include one or more of hydrogen sulfide monitors, ammonia monitors, and volatile organic compound monitors.

[0079] Specifically, this embodiment deploys odor source monitors, temperature and humidity sensors, and negative pressure monitors at various locations within the underground zones. The odor source monitors can be equipped with one or more of the following: hydrogen sulfide, ammonia, and VOC monitoring units. These monitors simultaneously collect three core parameters: odor component concentration, ambient temperature and humidity, and area negative pressure, and upload them uniformly to the intelligent control system 170. This constructs a comprehensive, multi-dimensional environmental sensing network, which can accurately identify the types and concentration levels of major odor pollutants and simultaneously monitor wind pressure, temperature, and humidity conditions. This provides complete data support for the coordinated control of ventilation, deodorization, and air conditioning, avoiding the problem of incomplete control decisions caused by monitoring only a single parameter.

[0080] In one possible implementation, a first air supply duct and a first internal circulation duct are provided within the buffer room 154. The air intake of the first internal circulation duct is located at a relatively low position within the buffer room 154, while the air outlet of the first air supply duct is located at a relatively high position within the buffer room 154. A second air supply duct, an exhaust duct, and a second internal circulation duct are provided within the key area 156. The air outlets of both the second air supply duct and the second internal circulation duct are located at a relatively high position within the key area 156, and the air intake of the exhaust duct is also located at a relatively high position within the key area 156.

[0081] Specifically, in this embodiment, the buffer room 154 has air supply outlets at a high position and internal circulation air intakes at a low position. The air supply and internal circulation outlets for the odor-producing key area 156 are located at the upper part of the room, and the exhaust air intakes are also located at the top of the room. The vertical placement of the air outlets is planned using the airflow pattern that allows hot air and odors to rise. This creates an orderly airflow pattern of upward supply and downward extraction in the buffer room 154, maintaining a stable positive pressure barrier. Unified air supply and exhaust at the top of the key area 156 prevents airflow eddies and localized odor accumulation, improves odor collection efficiency, reduces odor buildup in dead corners, and optimizes the overall airflow organization.

[0082] This application has the following beneficial effects: 1. Orderly airflow organization to avoid cross-contamination: Through the synergy of "supply air system 120 + internal circulation air system 130 + exhaust air system 110", a directional airflow path is constructed from the clean area / buffer room 154 to the heavily polluted area. Combined with the key area sealing system 150, the spread of odor to non-polluted areas is completely prevented.

[0083] 2. High deodorization efficiency and significant energy saving: Adopting a combination strategy of source sealing + local forced exhaust + internal circulation dilution, the deodorization fan operates at variable frequency according to the real-time concentration, and the overall energy consumption can be reduced by more than 30%.

[0084] 3. Intelligent dynamic adjustment and strong adaptability: The intelligent control system 170 automatically adjusts the operating status of each subsystem based on multi-dimensional sensor data to achieve on-demand ventilation and cooling / heating, avoiding energy waste.

[0085] 4. Ensuring personnel safety and comfort: The negative pressure design of the odor-generating space and buffer room 154, as well as the temperature and humidity regulation of the heat pump air conditioning system 180, provide a safe and comfortable working environment for maintenance personnel.

[0086] 5. Break away from the traditional linear thinking of "waste heat is emission and cooling is burden", treat the heating and cooling loads in different spaces and at different times as dispatchable resources, and realize cross-regional energy cascade utilization.

[0087] Furthermore, such as Figure 2 As shown, the exhaust system 110 includes exhaust louvers 111, an exhaust electric valve 112, an exhaust duct 113, an airflow sensor 114, an exhaust fan 115, and a terminal function electric valve 116. The supply air system 120 includes a pre-filter 121, a supply fan 122, a supply duct 123, an airflow sensor 124, a supply electric valve 125, and supply louvers 126. The internal circulation air system 130 includes internal circulation louvers 131, an internal circulation duct 132, an internal circulation electric valve 132, an internal circulation fan 134, and an airflow sensor 135. The deodorization system 140 includes deodorization louvers 141, a deodorization electric valve 142, a deodorization collection duct 143, an airflow sensor 144, a comprehensive deodorization facility 145, and an outdoor exhaust tower 146. The key area sealing system 150 includes a sealed partition 151, an observation window 152, a zone airtight door 153, a buffer room 154, a waste passage 155, and a key area 156. The heat pump air conditioning system 180 includes a heat pump unit 181, an air conditioning water system 182, an air conditioning unit 183, air conditioning ducts 184, and an air conditioning controller 185. The space environment monitoring system 160 includes a specific odor source monitor 161, a temperature and humidity sensor 162, and a space negative pressure monitor 163. The intelligent control system 170 includes an intelligent automatic control cabinet 171 and an intelligent central control system 172.

[0088] Example 1: Furthermore, such as Figure 2 As shown, the present invention provides a technical solution: an intelligent ventilation, deodorization, and purification system for sealed odor-producing spaces in underground spaces, comprising an exhaust system 110, an air supply system 120, an internal circulation air system 130, a deodorization system 140, a key area sealing system 150, a space environment monitoring system 160, and an intelligent control system 170. The exhaust system 110 includes exhaust louvers 111, exhaust electric valve 112, exhaust duct 113, air volume sensor 114, exhaust fan 115, and terminal function electric valve 116.

[0089] The exhaust system 110 is used to exhaust and ventilate the ambient air in the underground space to ensure air quality. Its exhaust ducts are equipped with controllable electric valves, allowing for dynamic adjustment of the exhaust flow rate.

[0090] The exhaust main pipe of the exhaust system 110 can either be directly connected to the outdoor exhaust tower or connected to the deodorization system 140. The exhaust air containing odor is sent to the deodorization system 140 for purification and then discharged. The ratio can be adjusted by an electric valve.

[0091] The air supply system 120 includes a primary filter 121, an air supply fan 122, an air supply duct 123, an air volume sensor 124, an air supply electric valve 125, and an air supply louver 126.

[0092] The air supply system 120 is used to deliver fresh air to the underground space to ensure the personnel activities required by regulations.

[0093] A controllable electric valve is also installed on the air supply duct to distribute the air supply volume as needed based on the negative pressure of the space.

[0094] The internal circulation air system 130 includes internal circulation air louvers 131, internal circulation air duct 132, internal circulation electric valve 132, internal circulation fan 134, and air volume sensor 135.

[0095] The internal circulation air system 130 is configured to transport air from non-odor-generating spaces (such as personnel corridors, equipment rooms, and other relatively clean areas) to odor-generating spaces (such as bar screen rooms, sludge dewatering rooms, etc.), using clean air to dilute the odor concentration, while reducing reliance on external fresh air and lowering the system load.

[0096] The deodorization system 140 includes deodorizing louvers 141, deodorizing electric valve 142, deodorizing collection duct 143, air volume sensor 144, integrated deodorization facility 145, and outdoor exhaust tower 146.

[0097] The deodorization system 140 is used to collect odors from odor-generating equipment and spaces. Its fan adopts frequency conversion control and adjusts the operating frequency in real time according to the concentration of odor pollution in the space (such as hydrogen sulfide, ammonia, volatile organic compounds, etc.) to ensure that the space environment meets the standards and the working needs of personnel.

[0098] The integrated deodorization facility 145 consists of one or more combinations of deodorization fans, water washing / chemical washing units, biological trickling filter units, and activated carbon adsorption units, and can be set according to the actual pollution load.

[0099] The key area sealing system 150 includes a sealed partition 151, an observation window 152, a zone airtight door 153, a buffer room 154, a waste passage 155, and a key area 156.

[0100] The critical area sealing system 150 is used to isolate and seal off equipment rooms that generate severe odors, and an intermediate buffer room 154 is set at the entrance of the room. Personnel enter the equipment room from the outside through the buffer room 154. The buffer room 154 is equipped with air supply ducts and internal recirculation ducts to maintain positive pressure in the buffer room 154 relative to the equipment room and prevent odors from escaping.

[0101] The buffer room 154 includes air supply ducts and internal circulation ducts. The internal circulation air intake is located at a relatively low position, while the air supply duct is located at a relatively high position inside, ensuring that fresh air can be delivered efficiently and forming an effective airflow organization.

[0102] The waste passage 155 includes an air supply duct and an internal circulation duct. The air supply duct and the internal circulation duct are arranged at relatively high positions and spaced apart to ensure efficient delivery of fresh air and form an effective airflow organization.

[0103] Key area 156 includes air supply ducts, exhaust system 110, and internal circulation air ducts. The air supply ducts and internal circulation air ducts are arranged at relatively high positions, and the exhaust ducts are located at relatively high positions inside the building to ensure that fresh air can be delivered efficiently and form an effective airflow organization.

[0104] The space environment monitoring system 160 specifically includes: an odor source monitor 161, a temperature and humidity sensor 162, a space negative pressure monitor 163, and an outdoor pollutant emission concentration monitor (7.4).

[0105] Odor source detector 161 includes, but is not limited to, hydrogen sulfide detectors, ammonia detectors, volatile organic compound detectors, etc.

[0106] The intelligent control system 170 includes an intelligent automatic control cabinet 171 and an intelligent central control system 172, which are respectively connected to the exhaust system 110, the air supply system 120, the internal circulation air system 130, the deodorization system 140, the key area sealing system 150, and the space environment monitoring system 160.

[0107] The intelligent control system 170 automatically performs interlocking opening and closing and opening degree adjustment of electric valves in each subsystem based on the pollutant concentration, negative pressure, temperature and humidity parameters of each area fed back by the space environment monitoring system 160, and in combination with the preset target values ​​of multiple parameters such as pollutant concentration, temperature and humidity, and negative pressure gradient of each area. This achieves dynamic and coordinated control of exhaust, air supply, deodorization and internal circulation, and realizes comprehensive ventilation and deodorization intelligent regulation of the entire underground space.

[0108] Furthermore, negative pressure establishment and dynamic adjustment: The intelligent automatic control system sets a target negative pressure value (reference range -50Pa to -5Pa) according to the actual needs of each odor-producing room. By adjusting the operating frequency of the exhaust fan and supply fan, it maintains a stable negative pressure state in the room, ensuring that odor does not escape. After the system has been adjusted and stabilized, the difference between the set value and the measured value is compared. If the error is within 10%, the current operating parameters are maintained. If the error is large, the parameters are corrected based on the measured values.

[0109] Furthermore, odor concentration linkage control: when the monitoring system detects that the concentration of hydrogen sulfide or ammonia reaches the warning value, the intelligent control system 170 automatically increases the odor extraction intensity and simultaneously links up the deodorization equipment to enhance purification capacity.

[0110] Furthermore, enhanced ventilation during maintenance: When equipment is under maintenance, damaged, or odor is escaping in a localized area, local negative pressure can be adjusted via the intelligent control system 170 or the on-site control cabinet to ensure stable air supply while preventing odor from escaping. If no personnel are present to address the issue promptly, causing odor to accumulate and reach the warning threshold of the detection system, the intelligent control system 170 will automatically adjust the local ventilation and deodorization system 140 to achieve efficient and intelligent air environment improvement.

[0111] Furthermore, the internal circulation energy-saving mode automatically switches to internal circulation mode when the odor concentration is low and the outdoor weather conditions are unfavorable. Part of the gas purified by the deodorization equipment is returned to the odor-generating space through the bypass pipe, reducing the amount of fresh air introduced and reducing energy consumption.

[0112] Furthermore, the deodorization system 140 maintenance mode: when the deodorization equipment is under maintenance or damaged, the ventilation system and the deodorization system 140 can be directly ventilated through the intelligent control system 170 or the field control cabinet to prevent the accumulation of odor in the underground space.

[0113] Example 2: like Figure 1 and Figure 2 As shown, this application also provides a technical solution: an intelligent ventilation and air conditioning system for a sealed heat-generating space in an underground space, including an exhaust system 110, an air supply system 120, a heat pump air conditioning system 180, a space environment monitoring system 160, and an intelligent control system 170. The exhaust system 110 includes exhaust louvers 111, exhaust electric valve 112, exhaust duct 113, air volume sensor 114, exhaust fan 115, and terminal function electric valve 116.

[0114] The exhaust system 110 is used to exhaust and ventilate the ambient air in the underground space to ensure air quality. Its exhaust ducts are equipped with controllable electric valves, allowing for dynamic adjustment of the exhaust flow rate.

[0115] The exhaust main pipe of the 110 ventilation system can be directly connected to the outdoor exhaust tower.

[0116] The air supply system 120 includes a primary filter 121, an air supply fan 122, an air supply duct 123, an air volume sensor 124, an air supply electric valve 125, and an air supply louver 126.

[0117] The air supply system 120 is used to deliver fresh air to the underground space to ensure the personnel activities required by regulations.

[0118] A controllable electric valve is also installed on the air supply duct to distribute the air supply volume as needed based on the negative pressure of the space.

[0119] The heat pump air conditioning system 180 includes a heat pump unit 181, an air conditioning water system 182, an air conditioning unit 183, an air conditioning duct 184, and an air conditioning controller 185.

[0120] The heat pump air conditioning system 180 is used to provide cooling in summer for functional areas such as equipment rooms, power distribution rooms, and personnel activity areas in underground spaces, as well as heating in some functional areas in winter, to maintain a comfortable temperature in the work, living, and entertainment areas for personnel.

[0121] The space environment monitoring system 160 specifically includes: an odor source monitor 161, a temperature and humidity sensor 162, and a space negative pressure monitor 163.

[0122] Odor source detector 161 includes, but is not limited to, hydrogen sulfide detectors, ammonia detectors, volatile organic compound detectors, etc.

[0123] The intelligent control system 170 includes an intelligent automatic control cabinet 171 and an intelligent central control system 172, which are respectively connected to the exhaust system 110, the air supply system 120, the heat pump air conditioning system 180 and the space environment monitoring system 160.

[0124] The intelligent control system 170 automatically performs interlocking opening and closing and opening degree adjustment of electric valves in each subsystem based on the negative pressure, temperature and humidity parameters of each area fed back by the space environment monitoring system 160, and in combination with the preset negative pressure gradient target value of each area. This enables dynamic coordinated control of exhaust, air supply and heat pump air conditioning system 180, and realizes intelligent regulation of comprehensive ventilation and air conditioning in the entire underground space.

[0125] Furthermore, depending on the regional needs, the system can be configured with various combinations of exhaust system 110, air supply system 120, heat pump air conditioning system 180, and space environment monitoring system 160, which can be flexibly set according to actual temperature and humidity and personnel needs.

[0126] Furthermore, in winter operation mode: the intelligent control system 170 switches to winter mode, shutting off the cooling cycle of the water source heat pump air conditioning module and opening the outdoor fresh air intake. Outdoor cold air, after being coarsely filtered, is delivered to each equipment room by a variable frequency fan. The air volume is adjusted in real time according to the room's temperature and humidity. The exhaust system 110 operates year-round, continuously exhausting hot air from the room.

[0127] Furthermore, in summer operation mode: the intelligent control system 170 switches to summer mode, closes the outdoor fresh air intake (retaining a minimum fresh air volume to meet hygiene requirements), and starts the water source heat pump air conditioning module. Underground constant-temperature water is pumped into the water source heat pump unit, which then produces chilled water which is sent to the air conditioning terminal equipment. The treated cool air is delivered to each room through air supply ducts to maintain indoor temperature and relative humidity within a comfortable range. The exhaust system 110 continuously exhausts hot and humid air from the room.

[0128] Furthermore, the transitional season mode: when the outdoor temperature is suitable in spring and autumn, the intelligent control system 170 can turn on the fresh air mode, make full use of the outdoor natural cold source, and turn off the water source heat pump unit to achieve energy-saving operation.

[0129] Furthermore, automatic fault switching: When the water source heat pump unit malfunctions or the underground water source becomes abnormal, the intelligent control system 170 automatically switches to emergency ventilation mode, opens the outdoor fresh air intake, and ensures the basic ventilation needs of each room.

[0130] Example 3: This application also provides a technical solution: an intelligent system for utilizing waste heat from ventilation in a sealed heat-generating underground space, including an exhaust system 110, an air supply system 120, a space environment monitoring system 160, and an intelligent control system 170. The exhaust system 110 includes exhaust louvers 111, exhaust electric valve 112, exhaust duct 113, air volume sensor 114, exhaust fan 115, and terminal function electric valve 116.

[0131] The exhaust system 110 is used to exhaust the ambient air in the underground space, transport the hot air from the equipment room, and use the waste heat to heat other rooms.

[0132] The air supply system 120 includes a primary filter 121, an air supply fan 122, an air supply duct 123, an air volume sensor 124, an air supply electric valve 125, and an air supply louver 126.

[0133] The air supply system 120 is used to deliver fresh air to the underground space to ensure the personnel activities required by regulations.

[0134] A controllable electric valve is also installed on the air supply duct to distribute the air supply volume as needed based on the negative pressure of the space.

[0135] The space environment monitoring system 160 specifically includes: an odor source monitor 161, a temperature and humidity sensor 162, and a space negative pressure monitor 163.

[0136] Odor source detector 161 includes, but is not limited to, hydrogen sulfide detectors, ammonia detectors, volatile organic compound detectors, etc.

[0137] The intelligent control system 170 includes an intelligent automatic control cabinet 171 and an intelligent central control system 172, which are respectively connected to the exhaust system 110, the air supply system 120 and the space environment monitoring system 160.

[0138] Furthermore, depending on the regional needs, the system can be configured in various combinations of exhaust system 110, air supply system 120, and space environment monitoring system 160, which can be flexibly set according to actual temperature and humidity and personnel needs.

[0139] Furthermore, such as Figure 4 As shown, the system is divided into two main areas: a south zone and a north zone. Internally, multiple odor-generating sections are arranged sequentially, including membrane screens, aerated sedimentation, fine screens, a booster pump station, and coarse screens. Each section's access passage is equipped with a buffer room (154) and a waste passage. A complete network of supply air, exhaust air, and recirculating air pipelines is installed. An exhaust vent is located in the north zone, and deodorization vents with adjustable opening deodorization valves are reserved in both the north and south zones. SF, EF, and XH series sensors and fans are positioned along the pipelines. The left and right sides and bottom of the screen simultaneously display real-time monitoring parameters such as indoor negative pressure, set pressure, and pollutant percentage for different zones, including aerated sedimentation, various levels of screens, buffer rooms (154), and waste passages. The upper left corner provides control options for switching between normal / mode and automatic / manual modes. The top legend labels and explains five monitoring items: supply air valve, exhaust air valve, recirculating valve, indoor pressure, and set pressure. This enables centralized management of air pressure and odor parameters across the entire area, as well as the zoned control of deodorization valves and supply / exhaust air equipment.

[0140] This application also provides a method for intelligent integrated ventilation and odor control in a fully underground space, including the following steps: 100. The space environment monitoring system 160 collects the odor pollutant concentration value and negative pressure value of each area of ​​the underground space in real time, and sends the collected odor pollutant concentration value and negative pressure value to the intelligent control system 170 to obtain real-time monitoring data of each area.

[0141] Specifically, in step 100, odor concentration detection sensors and negative pressure sensors are deployed in various underground zones. These sensors collect real-time data on the concentrations of odor pollutants such as hydrogen sulfide, ammonia, and VOCs, as well as the negative pressure values ​​of the area. The raw signals are then processed through analog-to-digital conversion and format standardization, and continuously uploaded to the intelligent control system 170 via wired industrial bus or wireless communication. This achieves uninterrupted quantitative sensing of odor and negative pressure conditions across the entire underground area, replacing the traditional manual periodic inspection mode. It can detect anomalies such as excessive local odor and negative pressure imbalance in real time, providing accurate and timely data for subsequent automatic control, and avoiding the problems of monitoring lag and incomplete coverage inherent in manual inspections.

[0142] 200. The intelligent control system 170 receives real-time monitoring data from each area and compares the real-time monitoring data of each area with the preset target values ​​of pollutant concentration and negative pressure for the corresponding area. It then determines whether the odor pollutant concentration and negative pressure values ​​of each area deviate from the corresponding target values ​​and obtains the deviation judgment results for each area.

[0143] Specifically, in this step, the intelligent control system 170 pre-stores the target ranges for pollutant concentration and negative pressure for each zone. After receiving real-time monitoring data, the system compares the measured concentration and negative pressure values ​​with the corresponding preset target values ​​for each zone, distinguishing between three types of zones: concentration exceeding the standard, negative pressure too high / too low, and normal operating conditions. It outputs the deviation type and magnitude for each zone, forming the deviation judgment result for each zone. This accurately distinguishes between normal and abnormal operating conditions, quantifies the degree of pollution and pressure difference deviation in different zones, avoids the crude control method of indiscriminately increasing ventilation volume across the entire area, provides a basis for issuing differentiated control commands for different zones, and reduces ineffective airflow output from the source of control.

[0144] 300. The intelligent control system 170 generates control commands for the exhaust system 110, air supply system 120 and internal circulation air system 130 corresponding to each area based on the deviation judgment results of each area. The control commands include the fan frequency adjustment value and the electric valve opening adjustment value, thus obtaining the control commands for each subsystem.

[0145] Specifically, step 300 generates instructions to increase exhaust air volume and improve internal circulation air volume for areas with excessive pollutant concentrations. This specifies the frequency adjustment value of the exhaust fan, the corresponding increase in the opening of the exhaust branch pipe electric valve, and the adjustment amount of the internal circulation fan frequency and valve opening. For areas where negative pressure deviates from the target, it matches the adjustment parameters of the supply fan frequency and the supply branch pipe valve opening, integrating these two types of control parameters to form a complete set of control instructions that can be directly executed by the exhaust, supply, and internal circulation air systems 130. This achieves differentiated control with a "one area, one strategy" approach. Areas with excessive odor focus on strengthening exhaust and internal air dilution, while areas with abnormal negative pressure prioritize correcting supply air parameters. The control amounts of each subsystem are matched to the degree of deviation from actual operating conditions, balancing deodorization effectiveness with energy saving.

[0146] 400. The intelligent control system 170 sends control commands for each subsystem to the corresponding exhaust system 110, air supply system 120 and internal circulation air system 130 respectively. The exhaust system 110, air supply system 120 and internal circulation air system 130 adjust their respective fan frequencies and electric valve openings according to the received control commands to obtain the adjusted operating status of each subsystem.

[0147] Specifically, in this step, the intelligent control system 170 sends the generated control commands to the variable frequency fans and zoned electric actuators of the exhaust system 110, supply air system 120, and internal circulation air system 130. After receiving the commands, the equipment adjusts the fan operating frequency and valve opening degree, changing the supply air volume, exhaust air volume, and internal circulation air volume in each area, completing the operating condition adjustment and feeding back the current equipment operating parameters, forming a closed-loop control state. By replacing manual on-site operation with automated execution, it can quickly respond to emergencies such as odor leakage and negative pressure fluctuations, and promptly strengthen ventilation and deodorization efforts. At the same time, it dynamically matches the air volume as needed, abandoning the traditional constant full-load ventilation mode all day long, reducing overall ventilation energy consumption while ensuring odor control effectiveness, and stably maintaining the target negative pressure and air quality in each area.

[0148] Furthermore, based on the same inventive concept, this application also provides a method for intelligent integrated ventilation and deodorization control in a fully underground space. For example... Figure 5As shown, step 100 is executed first, where the space environment monitoring system 160 continuously collects two types of parameters: odor pollutant concentration and negative pressure in each underground zone, and transmits the processed real-time monitoring data to the intelligent control system 170. Next, step 200 is executed, where the intelligent control system 170 retrieves the pre-set pollutant concentration and negative pressure target thresholds for each area, compares the measured data with the target values ​​one by one, determines the deviation of the parameters in each area, and outputs the deviation judgment result. Then, step 300 is executed, where the control system generates targeted adjustment commands for the fan frequency and electric valve opening of the exhaust, supply, and internal circulation air systems 130 based on the degree of deviation in different areas. Finally, step 400 sends the control commands to each airflow subsystem, and each system adjusts the fan operating frequency and valve opening according to the commands, changing the ventilation volume in each area, completing one round of operating condition adjustment. This process of data collection, comparison, command generation, and adjustment is repeated cyclically to achieve dynamic closed-loop intelligent control of underground ventilation and deodorization.

[0149] In one possible implementation, the space environment monitoring system 160 collects real-time odor pollutant concentration values ​​and negative pressure values ​​in various areas of the underground space, and sends the collected odor pollutant concentration values ​​and negative pressure values ​​to the intelligent control system 170 to obtain real-time monitoring data for each area. This process includes the following steps: The space environment monitoring system 160 collects odor pollutant concentration values ​​in each area using odor source monitors installed in each area of ​​the underground space, and collects negative pressure values ​​in each area using negative pressure monitors installed in each area of ​​the underground space, obtaining raw data for each area. The space environment monitoring system 160 converts the raw data for each area into monitoring signals in a standard format, obtaining monitoring signals for each area. The space environment monitoring system 160 sends the monitoring signals for each area to the intelligent control system 170 via a communication network, obtaining real-time monitoring data for each area.

[0150] Specifically, this embodiment uses dedicated monitoring hardware deployed in different zones to collect raw data on odor and negative pressure. This data is then standardized and converted, and stably uploaded to the central control system via a communication network, replacing the traditional single-point manual inspection mode. This achieves continuous and synchronous sensing of pollution and wind pressure conditions across the entire underground area. Standardized processing of raw signals avoids sensor signal incompatibility and data distortion issues. Stable transmission links ensure that monitoring data is delivered to the intelligent control system in real time and completely, providing a comprehensive, lag-free, and uniformly quantified data foundation for subsequent precise control. This prevents untimely handling of odor leaks due to missing monitoring points or data delays.

[0151] In one possible implementation, the intelligent control system 170 receives real-time monitoring data from each region and compares the real-time monitoring data of each region with the preset target values ​​for pollutant concentration and negative pressure for the corresponding region. The process of determining whether the odor pollutant concentration and negative pressure values ​​of each region deviate from the corresponding target values ​​and obtaining the deviation judgment results for each region includes the following steps: The intelligent control system 170 receives real-time monitoring data from each region and reads the preset target values ​​for pollutant concentration and negative pressure from local storage to obtain a set of real-time data and target data for each region. The intelligent control system 170 calculates the difference between the real-time data of each region and the corresponding target values ​​in the target data set to obtain pollutant concentration difference data and negative pressure difference data for each region. The intelligent control system 170 compares the pollutant concentration difference data and negative pressure difference data of each region with preset deviation thresholds to determine whether each parameter exceeds the corresponding deviation threshold range, generates deviation flag bits for each parameter in each region, and obtains the deviation judgment results for each region.

[0152] Specifically, this embodiment achieves precise quantitative judgment of zones and parameters by retrieving preset standards for each zone, assembling real-time and target data one by one, calculating the difference, comparing it with the deviation threshold, and outputting a standardized deviation flag. Unlike simple and crude data comparison methods, it can accurately distinguish between three scenarios: excessive odor, excessively high / low negative pressure, and normal operating conditions. It quantifies the deviation range, avoids the crude control logic of indiscriminately increasing ventilation volume across the entire area, accurately locates abnormal zones and abnormal parameters, reduces energy loss caused by ineffective ventilation from the source, and improves the targeting of subsequent command generation.

[0153] In one possible implementation, the intelligent control system 170 generates control commands for the exhaust system 110, supply air system 120, and internal circulation air system 130 corresponding to each region based on the deviation judgment results of each region. The control commands include fan frequency adjustment values ​​and electric valve opening adjustment values. Obtaining the control commands for each subsystem involves the following steps: The intelligent control system 170 identifies regions with positive pollutant concentration deviations based on the deviation judgment results of each region, and generates exhaust enhancement commands and internal circulation supply air enhancement commands for those regions. The exhaust enhancement command includes an increase in exhaust fan frequency and an increase in the opening value of the corresponding region's exhaust electric valve; the internal circulation supply air enhancement command includes an increase in internal circulation fan frequency and an increase in the opening value of the corresponding region's internal circulation electric valve, thus obtaining the enhanced control command for the polluted region. The intelligent control system 170 also identifies regions with negative pressure deviations based on the deviation judgment results of each region, and generates supply air adjustment commands for those regions. The supply air adjustment commands include supply fan frequency adjustment values ​​and corresponding region's supply air electric valve opening adjustment values, thus obtaining the supply air control command for the region with negative pressure deviations. The intelligent control system 170 combines the enhanced control commands for the polluted area and the air supply control commands for the negative pressure deviation area to generate a set of control commands that are executed synchronously by each subsystem, thus obtaining the control commands for each subsystem.

[0154] Specifically, this embodiment distinguishes between two abnormal scenarios: excessive odor concentration and negative pressure imbalance. Corresponding enhanced adjustment commands are generated for each scenario, and then integrated into a synchronous execution command set for issuance. This achieves simultaneous consideration of both pollution control and wind pressure stability. When odor exceeds the standard, exhaust and internal air dilution are simultaneously enhanced. In cases of negative pressure anomalies, air supply parameters are precisely corrected. The adjustment range of each subsystem matches the deviation from actual operating conditions, preventing contradictory situations where one system is adjusted while another is unbalanced. The simultaneous issuance of multiple commands ensures synchronized operation of all fans and electric valves, rapidly correcting underground airflow and pollution concentration. This effectively suppresses odor diffusion while maximizing ventilation energy consumption, balancing deodorization effectiveness and energy-saving goals.

[0155] The intelligent integrated ventilation and deodorization system and control method for the entire underground space disclosed in this application can construct a gradient unidirectional airflow barrier with positive buffer zones and negative odor-generating zones through a sealing system in key areas and a buffer room, thereby blocking the cross-regional flow of odor from the source. Then, clean air is delivered through an internal circulation air system to dilute the concentration of the odor source. The exhaust system is equipped with direct exhaust and purification dual branches that can flexibly switch between treatment modes. In conjunction with a comprehensive environmental monitoring device equipped with monitoring units for hydrogen sulfide, ammonia, VOCs, etc., it collects odor, negative pressure, temperature and humidity data in real time. The intelligent control system links the electric valves of each pipeline and the variable frequency fan to perform hierarchical interlocking control. If the odor exceeds the standard, it automatically strengthens the internal circulation of exhaust air, and if the negative pressure deviates, it corrects the supply air volume in real time. It can also link with the heat pump air conditioner to synchronously regulate the underground temperature and humidity. With its dedicated control methods, it achieves fully automated closed-loop management of monitoring, comparison, command issuance, and equipment adjustment, eliminating the need for manual on-site intervention to address potential leaks. It solves the shortcomings of traditional underground ventilation, such as airflow short-circuiting, odor disturbance to residents, high energy consumption at constant air volume, delayed response to sudden odors, and overheating of equipment in stuffy computer rooms. It orderly optimizes the airflow organization throughout the underground area, reduces the overall energy consumption for ventilation and deodorization, and eliminates the safety risks of poisoning of personnel in confined spaces and high-temperature fires of electrical equipment, thus maintaining a stable, comfortable, and safe air environment in underground work areas.

[0156] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A fully underground intelligent integrated ventilation and deodorization system, characterized in that, The system seals and isolates the areas in the underground space that generate odors, forming an odor-generating space, and other spaces excluding the odor-generating space. The system includes an exhaust system, an air supply system, an internal circulation system, an odor removal system, a key area sealing system, a space environment monitoring system, and an intelligent control system. The key area sealing system is installed in the odor-generating space, and the sealing system is equipped with an inlet and outlet isolation zone. The pipeline of the inlet and outlet isolation zone is connected to the air supply system and the internal circulation air system, so that the inlet and outlet isolation zone maintains positive pressure relative to the odor-generating space to prevent odor from overflowing. The exhaust system is connected to various areas of the underground space through pipelines and is used to extract air from the underground space; the exhaust system is equipped with exhaust branch lines, which are connected to the deodorization system pipelines; The air supply system is connected to various areas of the underground space through pipelines and is used to deliver fresh air into the underground space; The internal circulation air system duct connects the non-odor-generating space and the odor-generating space, and is used to transport clean air to the odor-generating space to dilute the odor in the odor-generating space. The deodorization system is connected to the exhaust system through pipelines and is used to purify the odorous air delivered by the exhaust system. The space environment monitoring system is installed in each underground zone to collect the concentration of odor pollutants and negative pressure parameters in the area in real time. The intelligent control system is connected to the exhaust system, air supply system, internal circulation system, deodorization system, key area sealing system, and space environment monitoring system, respectively. It is used to adjust the frequency of the fans and the opening of the electric valves of each system in conjunction with the concentration and negative pressure parameters fed back by the space environment monitoring system.

2. The intelligent integrated ventilation and deodorization system for fully underground spaces according to claim 1, characterized in that, The key area sealing system includes a sealed partition, a buffer room, and a key area, with the entrance / exit isolation area serving as a buffer room. The key area is the room where the odor-generating equipment is located. The sealed partition is set between the key area and the adjacent space to prevent the odor in the key area from spreading to the adjacent space. The buffer room is equipped with a double-layer variable frequency air curtain device at its entrance and exit. The upper variable frequency air curtain device is a fresh air curtain, and the lower variable frequency air curtain device is an internal circulation return air curtain. The door is equipped with a door magnetic sensor, which is connected to the intelligent control system. The buffer room is equipped with a micro-pressure differential self-balancing one-way pressure relief valve on its side wall. The bottom of the sealed partition is equipped with a sewage ditch, which is equipped with an electric sewage valve. The buffer room is located at the entrance and exit of the key area for personnel. The buffer room is connected to the air supply system and the internal circulation air system through pipelines. The air supply system continuously supplies fresh air to the buffer room, and the internal circulation air system draws air from the buffer room to the key area. By relying on the continuous replenishment of fresh air to be greater than the internal circulation air extraction volume, the buffer room maintains positive pressure relative to the key area. The key area is continuously ventilated and maintained at negative pressure through pipelines and the exhaust system.

3. The intelligent integrated ventilation and deodorization system for fully underground spaces according to claim 1, characterized in that, The exhaust system has two exhaust branches: one is directly connected to the outdoor exhaust tower via a pipe, and the other is connected to the deodorization system via a pipe. Each of the two branch pipes is equipped with an electric valve. By adjusting the opening of the electric valve, the ratio of the air volume of odorous air discharged into the outdoor exhaust tower to the air volume sent into the deodorization system for purification is controlled. The deodorization system is equipped with an exhaust gas return branch at the end, which is connected to the main pipeline of the internal circulation air system. The internal circulation air system pipeline integrates a plate air heat exchanger to recover exhaust waste heat and reuse the deodorized and cleaned exhaust gas to dilute the odor source.

4. The intelligent integrated ventilation and deodorization system for fully underground spaces according to claim 1, characterized in that, It also includes an outdoor meteorological sensing subunit, which contains sensors for wind speed, wind direction, atmospheric inversion, and atmospheric pressure. The meteorological sensing subunit is communicatively connected to the intelligent control system. The intelligent control system can combine meteorological data collected by the meteorological sensing subunit and parameters fed back by the space environment monitoring system for linkage and adjustment. When meteorological conditions that are not conducive to exhaust gas diffusion are identified, it switches to the full deodorization and exhaust mode. When the concentration of pollutants in a certain area increases, the intelligent control system increases the opening degree of the electric valve of the corresponding area exhaust branch pipe and the frequency of the exhaust fan in the exhaust system, and at the same time increases the air volume supplied to the area by the internal circulation air system. When the negative pressure value in a certain area deviates from the target range, the intelligent control system adjusts the frequency of the air supply fan of the air supply system and the opening degree of the electric valve of the corresponding area air supply branch pipe.

5. The intelligent integrated ventilation and deodorization system for fully underground spaces according to claim 1, characterized in that, It also includes a heat pump air conditioning system, which is connected to various areas of the underground space through pipelines and is used to provide cooling or heating to each area. The intelligent control system is communicatively connected to the heat pump air conditioning system and adjusts the operating status of the heat pump air conditioning system in conjunction with the temperature and humidity parameters fed back by the space environment monitoring system.

6. The intelligent integrated ventilation and deodorization system for fully underground spaces according to claim 1, characterized in that, The space environment monitoring system includes odor source monitors, temperature and humidity sensors, and space negative pressure monitors installed in various areas of the underground space. The odor source monitor includes one or more of the following: hydrogen sulfide monitor, ammonia monitor, and volatile organic compound monitor.

7. The intelligent integrated ventilation and deodorization system for fully underground spaces according to claim 2, characterized in that, The buffer room is provided with a first air supply duct and a first internal circulation air duct. The air intake of the first internal circulation air duct is located at a relatively low position in the buffer room, and the air outlet of the first air supply duct is located at a relatively high position in the buffer room. The key area is equipped with a second air supply duct, an exhaust duct, and a second internal circulation duct. The air outlets of the second air supply duct and the second internal circulation duct are both located at a relatively high position in the key area, and the air intake of the exhaust duct is also located at a relatively high position in the key area.

8. A method for intelligent integrated ventilation and deodorization control in a fully underground space, used for ventilation and deodorization treatment using the intelligent integrated ventilation and deodorization system for a fully underground space as described in any one of claims 1-7, characterized in that, Includes the following steps: The space environment monitoring system collects the odor pollutant concentration and negative pressure values ​​of various areas in the underground space in real time, and sends the collected odor pollutant concentration and negative pressure values ​​to the intelligent control system to obtain real-time monitoring data of each area; The intelligent control system receives real-time monitoring data from each area and compares the real-time monitoring data of each area with the preset target values ​​of pollutant concentration and negative pressure for the corresponding area. It then determines whether the odor pollutant concentration and negative pressure values ​​of each area deviate from the corresponding target values ​​and obtains the deviation judgment results for each area. Based on the deviation judgment results of each area, the intelligent control system generates control commands for the exhaust system, air supply system and internal circulation system of each area. The control commands include fan frequency adjustment values ​​and electric valve opening adjustment values, thus obtaining control commands for each subsystem. The intelligent control system sends control commands from each subsystem to the corresponding exhaust system, supply system, and internal circulation system. The exhaust system, supply system, and internal circulation system adjust their respective fan frequencies and electric valve openings according to the received control commands to obtain the adjusted operating status of each subsystem.

9. The intelligent integrated ventilation and deodorization control method for a fully underground space according to claim 8, characterized in that, The space environment monitoring system collects real-time odor pollutant concentration values ​​and negative pressure values ​​in various areas of the underground space, and sends the collected odor pollutant concentration values ​​and negative pressure values ​​to the intelligent control system. The real-time monitoring data for each area includes the following steps: The space environment monitoring system collects the concentration values ​​of odor pollutants in each area of ​​the underground space by installing odor source monitors in each area of ​​the underground space, and collects the negative pressure values ​​in each area by installing negative pressure monitors in each area of ​​the underground space, thus obtaining the raw data collected in each area. The space environment monitoring system converts the raw data collected from each region into monitoring signals in a standard format, thus obtaining the monitoring signals for each region; The space environment monitoring system transmits monitoring signals from each region to the intelligent control system via a communication network, thereby obtaining real-time monitoring data for each region.

10. The intelligent integrated ventilation and deodorization control method for a fully underground space according to claim 8, characterized in that, The intelligent control system generates control commands for the exhaust system, supply system, and internal circulation system of each area based on the deviation judgment results of each area. The control commands include fan frequency adjustment values ​​and electric valve opening adjustment values. Obtaining the control commands for each subsystem includes the following steps: The intelligent control system identifies areas with positive deviations in pollutant concentration based on the deviation judgment results of each area, and generates exhaust ventilation enhancement commands and internal circulation ventilation enhancement commands for that area. The exhaust ventilation enhancement command includes an increase in the frequency of the exhaust fan and an increase in the opening of the exhaust electric valve in the corresponding area. The internal circulation ventilation enhancement command includes an increase in the frequency of the internal circulation fan and an increase in the opening of the internal circulation electric valve in the corresponding area, thus obtaining the enhanced control commands for the polluted area. Based on the deviation judgment results of each area, the intelligent control system identifies the area with negative pressure deviation and generates the air supply adjustment command for that area. The air supply adjustment command includes the frequency adjustment value of the air supply fan and the opening adjustment value of the corresponding area's air supply electric valve, thus obtaining the air supply control command for the area with negative pressure deviation. The intelligent control system merges the enhanced control commands for the polluted area and the air supply control commands for the negative pressure deviation area to generate a set of control commands that are executed synchronously by each subsystem, thus obtaining the control commands for each subsystem.

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