6645 results about "Fresh air" patented technology

The invention discloses a clean workshop production environment quality control method and system, and relates to the technical field of environment control, and the method comprises the steps: constructing a multi-layer sensing network, deploying temperature and humidity, particle concentration, pressure difference and VOC gas sensors, and carrying out the preprocessing data of each node through edge calculation; fusing the data based on a dynamic weight distribution algorithm, adjusting the weight according to the confidence score, and generating an environment quality comprehensive index; an LSTM pollution diffusion prediction model is established, a diffusion path is calculated in combination with airflow field simulation when pollution suddenly occurs, and an emergency response partition strategy is generated; fresh air system control parameters are optimized through reinforcement learning, a dynamic ventilation frequency adjusting model is established based on a real-time environment quality index and historical energy consumption data, and energy consumption is minimized through a Q-learning algorithm on the premise that cleanliness is guaranteed; a double-threshold early warning mechanism is set, local supercharging purification is started when a comprehensive index exceeds a first-level threshold, a second-level threshold is linked with adjacent areas to form a dynamic isolation barrier, and an intervention scheme effect is simulated through a digital twin system.

The invention relates to the technical field of intelligent control, and particularly discloses a linkage control method for energy-saving ventilation equipment, which comprises the following steps of: acquiring indoor and outdoor temperature, indoor carbon dioxide concentration and personnel occupancy state data in real time; according to the method, deep collaborative analysis is carried out on the indoor personnel occupancy state and the deviation between the carbon dioxide concentration and a target set value, so that joint characterization of the current indoor fresh air volume regulation and control requirement is achieved, control parameters of a fresh air volume PI D controller are dynamically optimized accordingly, and a basic fresh air volume regulation instruction is calculated. On the basis, thermal disturbance introduced by fresh air is further quantified based on the outdoor and indoor temperature difference, and the thermal disturbance serves as a feedforward signal to be compensated to an air conditioner load adjusting loop, so that dynamic adjustment of the air conditioner load is achieved. In this way, cooperative control over ventilation and air conditioning systems can be achieved, the fresh air-air conditioning equipment energy consumption coupling conflict in traditional control is restrained, and therefore the building energy consumption is reduced while the indoor environment quality is guaranteed.

The invention discloses an airport terminal fresh air energy-saving optimization control method based on passenger space-time distribution prediction, and relates to the technical field of intelligent energy saving, and the method comprises the following steps: S100, collecting the real-time position and moving speed of a passenger, constructing a passenger space-time distribution change model, and forming a prediction basis of air pressure dynamic adjustment; and S200, based on the passenger space-time distribution change model, calculating air pressure gradient distribution of each functional area of the terminal, identifying local positive pressure and adjacent negative pressure areas, establishing a micro pressure difference grading early warning index, and determining a ventilation adjustment demand. By dynamically predicting passenger distribution, adjusting air supply and static pressure in real time and combining pressure difference early warning, airflow monitoring and countercurrent sealing control, airflow order is ensured, pollution gas is prevented from flowing backwards, and air quality and comfort are guaranteed. Based on a control model and an energy-saving strategy library of full-process data training, intelligent self-adaptive adjustment of the fresh air system is achieved, ventilation safety and energy efficiency are improved, and terminal service experience and operation efficiency are optimized.

The invention relates to the technical field of intelligent control, in particular to an intelligent radiation constant-temperature and constant-temperature system and a remote monitoring method, and the system comprises a radiation tail end control module, a hydraulic balance adjusting module, a fresh air humidity regulation and control module, a cold and heat source matching module and a noise and vibration suppression module. According to the method, through fine collection and analysis of temperature data of differentiated areas and optimization of a heat exchange strategy, precise temperature control is achieved, the response capacity is improved, the fluid flowing state is dynamically adjusted, hydraulic balance is optimized, reasonable distribution of cold water and hot water is ensured, heat loss is reduced, energy efficiency is improved, and air quality monitoring and the humidity change trend are combined; the dehumidification and humidification capacity of the fresh air system is optimized, the humidity adjusting precision is improved, cold and heat source output is dynamically matched with environment heat loads, energy consumption optimization is achieved, hydraulic control and vibration suppression are optimized based on flow speed and vibration monitoring, the mute effect and comfort are improved, multi-dimensional data collaboration is achieved, and accurate adjustment, independent control and efficient energy consumption management are achieved.

The invention relates to the technical field of industrial control, and discloses an energy-saving air conditioner intelligent control system which comprises an edge computing node, a dynamic load prediction module, a self-adaptive control module, an energy consumption optimization evaluation module and a fault diagnosis module. A data acquisition module, a real-time control module and a communication interface are integrated; based on the historical environment data and the air conditioner operation log, a long-short-term memory network model is adopted to predict the expected load demand in 2-4 hours in the future; dynamically adjusting the operation number of chilled water units, the frequency conversion frequency of water pumps and the opening degree of fresh air valves according to the expected load requirement; the unit cold energy consumption of a single air conditioner is calculated in real time, and a global optimization instruction is generated in combination with a time-of-use electricity price strategy; motor current harmonic characteristics are collected through the edge calculation nodes, the abnormity of the air conditioner is recognized, graded response is conducted, the intelligent control efficiency of the energy-saving air conditioner is improved, and the overall energy consumption cost of the air conditioner is reduced.

The intelligent control method comprises the steps that a plurality of sensors and frequency converters are installed and used for monitoring the air temperature and humidity, the moisture content and the front-back pressure difference of a fresh air filter in real time; regulating and controlling the rotating speed of an air feeder, the rotating speed of a regeneration fan and the rotating speed of a rotating wheel through a frequency converter, obtaining sensor data under corresponding rotating speeds, and establishing an air supply quantity model, a fresh air quantity model and a rotating wheel dehumidification quantity model; the power of an air feeder, the front-back pressure difference of a fresh air filter and air parameter data are collected in real time, and the current dehumidification load is calculated according to a fan air supply amount model, a fresh air amount model and a preset formula; and selecting a preset control strategy to dynamically adjust the rotating speed of the rotating wheel, the rotating speed of the regeneration fan and the regeneration temperature according to the current dehumidification load and / or the rotating wheel dehumidification amount model so as to realize indoor humidity control. Start and stop can be automatically controlled and the dehumidification amount can be matched according to the actual wet load, excessive dehumidification or idle work is avoided, and the dehumidification efficiency is improved through multi-parameter cooperative control.

The present invention discloses a floor radiation cooling system and an anti-condensation control method, which relate to the technical field of radiation air conditioning. The method comprises: real-time collection of indoor temperature and humidity, electric three-way valve opening, water pump flow and fresh air unit parameters; using particle swarm algorithm (PSO) to optimize radial basis function neural network (RBF) weights and construct a PSO-RBF prediction model; inputting indoor air temperature, relative humidity, fresh air speed, fresh air humidity, valve opening and water pump flow into the model, outputting surface temperature and calculating condensation risk value with current dew point temperature, dynamically regulating fresh air speed and humidity to achieve anti-condensation; and adjusting the radiation surface temperature based on the PMV thermal comfort model to maintain thermal comfort. The method uses a dual control mechanism to ensure that the radiation surface is prevented from condensation while using the radiation surface to independently bear the sensible heat load, effectively avoiding mold growth and maintaining a stable indoor thermal environment.

The invention discloses an old wind power plant fan foundation small-to-large capacity increasing structure and a transformation construction method. The old wind power plant fan foundation small-to-large capacity increasing structure comprises an original fan foundation, a newly-poured reinforced concrete foundation, a vertical anchor bolt cage connecting system and a radial anchor bolt connecting system. The connecting structure of the bottom section of the new fan tower drum and the new fan foundation comprises a vertical anchor bolt cage connecting system and a radial anchor bolt connecting system. The vertical anchor bolt cage connecting system is fixed in the original fan foundation, and the radial anchor bolt connecting system is fixed in the newly-poured reinforced concrete foundation. According to the new fan foundation, the diameter of the middle pier is expanded so as to arrange a new tower tube, the height of the middle pier is not changed, the height of the middle pier of the newly-poured foundation almost does not need to be increased, and the using amount of concrete is greatly reduced. Meanwhile, according to the structure, an original vertical anchor bolt cage connecting system is reserved, a radial anchor bolt connecting system is adopted for enhancing connection between the bottom section of the fresh air fan tower barrel and the fan foundation, the transformation cost and the connection reliability are effectively controlled, and the maximization of reutilization of the original fan foundation and the controllability of the cost of the fresh air fan foundation are achieved.

The invention discloses an all-air air conditioner regulation and control method based on indoor number of people and meteorological parameter changes, and belongs to the field of air conditioner control. The method comprises the following steps that meteorological parameters of an area where a building is located are obtained, building envelope parameters, indoor equipment power and the number of real-time personnel are determined, the needed fresh air volume and the load of an air conditioning unit are calculated, the air supply volume and the air supply temperature are determined, and the air supply volume is fed into an air conditioning space for airflow organization simulation. A PMV value is calculated according to the simulation result, when the PMV meets the requirement, regulation and control parameters of a fresh air valve and an air return valve of the air supply system are output, and the chilled water amount needed by the air volume and the water valve opening degree are calculated; and when the PMV does not meet the requirement, the opening degree of the air return valve is adjusted, and the model is re-established for iterative calculation until the PMV reaches a target value. Based on an air conditioning unit control mechanism, building dynamic load changes are combined, the PMV is used as an evaluation index, an air valve and a water valve are adjusted, the indoor design environment requirement is met, and support is provided for optimization design of a building air conditioner air and water system.

The utility model discloses a modularized intelligent mobile fungus culture cabin, which belongs to the technical field of fungus culture cabins, and comprises support columns and heat insulation boxes, the bottoms of the four support columns are all fixedly provided with trundles, each heat insulation box is internally provided with a planting frame, monitoring equipment and a detection module, one end of each heat insulation box is fixedly provided with an intelligent special all-in-one machine, and the other end of each heat insulation box is fixedly provided with an intelligent special all-in-one machine. An illumination mechanism, a fresh air pipe and a humidifying pipe are arranged in the heat preservation box in a penetrating mode, and one end of the fresh air pipe and one end of the humidifying pipe are fixedly connected with the intelligent special all-in-one machine. The chamber body is supported through the supporting columns and the frame, the strength of the chamber body is improved, the chamber body is convenient to move through the trundles, conventional cultivated land is not occupied, the placement position is flexible, management and use are more convenient, equipment operation can be remotely monitored and controlled in a batched mode through communication of the 5G Internet of Things, various cultivation parameters in the fungus cultivation chamber are accurately controlled, and the cultivation efficiency is improved. And a remote monitoring user can monitor and track real-time data of a plurality of culture cabins in a centralized manner at any time.

The invention discloses a roof radiant cooling and independent fresh air dehumidification system mixed operation comprehensive control method, and belongs to the technical field of building environment control and heating ventilation air conditioning. The method comprises the steps that the radiant cooling capacity and the dehumidification capacity of a surface air cooler are calculated through a heat balance equation, and an optimization objective that a top plate radiation system bears 70% sensible heat load and a fresh air system bears 90% humidity load is set; an anti-condensation strategy is triggered by combining dew point temperature monitoring, a control variable is adjusted by taking minimization of energy consumption as a target in a rolling time domain, and it is ensured that the indoor temperature ranges from 23 DEG C to 26 DEG C, the humidity ranges from 40% to 60%, the black ball temperature difference is smaller than or equal to 2 DEG C, and the condensation risk is smaller than or equal to 6%. The method is suitable for energy-saving temperature and humidity regulation and control of large public buildings, and efficient cooperative processing of sensible heat and latent heat loads is achieved.

The utility model relates to the technical field of rail transit fresh air systems, in particular to an air door actuator of a rail transit fresh air system, which comprises a mounting bottom plate, an air door plate, a support frame, a lifting assembly and a driving assembly, the driving assembly is mounted on the support frame and comprises a rotating shaft, a rotor iron core, magnetic steel and a stator, the rotating shaft is a hollow reducing shaft, and the rotor iron core is arranged on the rotating shaft. The rotor core comprises a large-diameter section and a small-diameter section, the rotor core is mounted at the upper part of the large-diameter section, a circle of cylindrical holes are uniformly formed in the bottom surface of the large-diameter section, magnetic steel and a stator are sequentially arranged outside the rotor core, and a brake is mounted at the upper part of the small-diameter section; the lifting assembly is provided with a ball screw and a lead screw nut, the lead screw nut is installed on the ball screw and fixed to the bottom face of the large-diameter section, the upper portion of the ball screw extends into the hollow portion of the rotating shaft, the lower end of the ball screw is connected with a guide plate, and the guide plate is fixed to the middle of the top of the air door plate. The structure is more compact, the design is more reasonable, the requirement for light weight of rail transit is met, and the waterproof and dustproof requirements can be met.

The invention relates to the technical field of constructional engineering, and discloses an intelligent ventilation and purification method and system for constructional engineering, and the method comprises the steps: 1, determining the concentration of pollutants in a building based on real-time air quality data, and calculating the required ventilation quantity meeting a preset standard; secondly, the fresh air introduction proportion is adjusted according to the indoor and outdoor temperature and humidity difference value so as to optimize energy consumption and thermal comfort balance; 3, according to the personnel distribution density, the local area air supply intensity is set, and the air circulation uniformity is ensured; fourthly, the system operation mode is regulated and controlled based on the working state of the air purification equipment, so that energy consumption is reduced, and the service life of the equipment is prolonged; the fresh air introduction proportion is intelligently adjusted by comparing indoor and outdoor temperature and humidity differences. For example, when the outdoor temperature and humidity are close to the indoor comfortable interval, the fresh air volume is increased to utilize natural cold and heat sources; when the outdoor environment is extreme, the fresh air volume is reduced, the heat recovery device is started, the air conditioner load is reduced, and energy waste is reduced.

The invention provides a big data information processing method and system based on deep learning. According to the method, an energy distribution model is generated by combining a building information model with infrared thermal imaging data, and a dynamic thermal balance equation set is constructed according to the model so as to generate three-dimensional temperature field reconstruction data. Then, thermal resistance parameters in the energy distribution model, heat flow abnormal area coordinates in the three-dimensional temperature field reconstruction data and air conditioning unit current data are analyzed through a deep learning algorithm, and space-time coupling characteristics of equipment power consumption and thermal environment parameters are extracted; then, a priority regulation and control chain of the temperature control equipment is formulated, and multi-stage linkage rules of the fresh air exchange rate, illumination dimming and cold release of the cold storage tank are covered; finally, the chilled water pump phase difference, the air conditioner group operation mode and the emergency lighting power limiting value are dynamically adjusted, and power load stabilization is achieved. According to the technical scheme provided by the invention, the data information processing efficiency and stability of the large building can be improved.

The invention discloses a ventilation and air exchange device for a green building. The ventilation and air exchange device comprises a ventilation and air exchange box, a mounting plate, a ventilation and air exchange opening, a rotary air disc and fan blades. Mounting plates are fixed to the two ends of the two sides of the ventilation box, fixing pins penetrate through the interiors of the mounting plates, one ends of the fixing pins extend into the green building wall, and ventilation ports are formed in the two ends of the outer side of the ventilation box. According to the ventilation device for the green building, a fan motor is used for driving a linkage shaft to rotate, and a transmission assembly is matched to enable a fan shaft to rotate synchronously, so that two rotating wind discs and a plurality of fan blades are driven to rotate, outdoor fresh air is extracted and fed into the green building, and the ventilation effect is improved. According to the indoor air purification device, vitiated air, harmful gas and microorganisms in a building can be effectively diluted and discharged, so that the indoor air quality is improved, a healthier and more comfortable living environment is provided for people, indoor oxygen can be effectively supplemented, and the freshness and vitality of indoor air are kept.

The invention relates to an air conditioner temperature and humidity independent control system and method based on two-stage coil chilled water. On the basis of the existing chip plant temperature and humidity independent control based on a fresh air processing unit, a return air drying and cooling coil and a fan filtering unit, low-temperature chilled water outlet of a water chilling unit firstly passes through a fresh air re-cooling coil; return water obtained after the temperature of the fresh air re-cooling coil pipe rises serves as water supply of the fresh air pre-cooling coil pipe and the return air cooling dry coil pipe, so that two-stage coil pipe chilled water is formed, and the return water of the fresh air pre-cooling coil pipe and the return water of the return air cooling dry coil pipe are mixed and then serve as chilled water return water of the water chilling unit. By increasing the return water temperature of the water chilling unit, the average evaporation temperature of an evaporator of the water chilling unit is increased. A bypass is arranged between an inlet and an outlet of the return air cooling dry coil, and the air temperature in the plant is controlled by adjusting the bypass flow through an electric two-way adjusting valve and a PID controller. Compared with the prior art, the invention has the advantages of high unit energy efficiency ratio, low refrigeration energy consumption, simplified system and the like.

The invention relates to the technical field of intelligent building environment control and energy management, and provides a building ventilation regulation and control method and equipment based on multi-target space-time analysis in order to solve the problems of high energy consumption, uncontrollable infection risk and response lag in the prior art. Original data and the spatial-temporal features are combined into a multi-modal fusion data set, an air quality change rule is learned based on an LSTM model, a future air quality state matrix is output, a multi-target dynamic optimization function is constructed, an optimal regulation and control strategy of a fan, fresh air and purification equipment is generated, and the optimal regulation and control strategy of the fan, the fresh air and the purification equipment is obtained. The response speed is improved while energy consumption is reduced and infection risks are controlled, and the system is particularly suitable for public places such as hospitals, schools and nursing homes with high requirements for indoor gas environments.

The invention relates to the technical field of dehumidification heat pumps, and particularly discloses a dehumidification heat pump unit with a chlorine and carbon dioxide detection function, which comprises a case, and an air inlet device, a fresh air device, an exhaust device, a heat exchange device and an air supply device which are arranged in the case, and further comprises a PLC (Programmable Logic Controller) control system and an integrated gas detection device electrically matched with the PLC control system; the integrated gas detection device is used in cooperation with the air inlet device and the heat exchange device, the integrated gas detection device comprises a chlorine gas detection module and a carbon dioxide detection module, and the heat exchange device comprises a compressor, an evaporator and a condenser; the PLC control system is electrically connected with the integrated gas detection device, the compressor, the fresh air device and the exhaust device and used for receiving chlorine and carbon dioxide concentration signals detected by the chlorine detection module and the carbon dioxide detection module. The fresh air device is regulated to increase the fresh air introduction amount and start the exhaust device to accelerate exhaust of waste gas in the swimming pool.

The invention provides a hotel guest room control system and method based on big data analysis, and relates to the field of intelligent control. Temperature time sequence data, humidity time sequence data, carbon dioxide concentration time sequence data and PM2.5 concentration time sequence data of hotel guest rooms are obtained through sensors deployed in the hotel guest rooms; and the time sequence data of the air quality parameter indexes are analyzed to know the air quality condition in the hotel guest room, and the operation of the fresh air system is adaptively controlled based on the air quality condition in the hotel guest room. In this way, timely and accurate adjustment can be made according to the actual air quality condition in the guest room, and therefore the flexibility and the response speed of the fresh air system are improved.

The invention discloses a building fresh air linkage control system based on the Internet of Things, and relates to the technical field of intelligent control linkage, a sensing acquisition module is used for acquiring building state data, analyzing the building state data according to a priority strategy, analyzing building spaces in different regions, generating region information priorities, and sending the region information priorities to a central processing unit; focusing the key change area according to the area information priority to obtain a building environment potential field graph; the cooperative control module is used for performing multi-region cooperative decision on the building environment potential field graph to obtain an expected environment parameter sequence, and adjusting the expected environment parameter sequence through an optimization algorithm to obtain a fresh air coordination instruction set; and the execution decision module is used for performing multi-objective optimization on the fresh air coordination instruction set, generating an equipment-level control instruction, issuing the control instruction to a building equipment executor and completing accurate control of the fresh air system. According to the system, an optimized and convergent fresh air closed-loop control mechanism is established, operation of cold and heat source equipment is effectively coordinated, the energy-saving effect is achieved, and energy waste is avoided.

The invention relates to the technical field of constant temperature and humidity control, and discloses a multi-effect total heat recovery constant temperature and humidity system. A heat recovery distribution control module of the system analyzes the matching degree of heat recovery efficiency and energy stability and generates a heat recovery distribution control parameter set; the temperature and humidity balance optimization module adjusts the temperature and humidity distribution balance of the cavity and generates a temperature and humidity regulation and control optimization parameter set; the fresh air dynamic regulation module optimizes the fresh air input rate and path distribution and generates a fresh air dynamic regulation result; the abnormal working condition intervention module responds to temperature and humidity fluctuation and generates an abnormal intervention adjustment data set; and the environment parameter optimization module adjusts the target regulation and control path parameters and generates an environment temperature and humidity optimization data table. According to the system, through cooperative work of all the modules, efficient and accurate regulation and control over the environment temperature and humidity are achieved, the stability and adaptability of the system under complex working conditions are improved, and the requirements of modern industrial production and other scenes for high-precision environment control are met.

The invention provides fresh air equipment which comprises a fresh air opening, an air supply opening, an air return opening, an exhaust opening, a fan assembly, an indoor carbon dioxide concentration sensor and an outdoor carbon dioxide concentration sensor. The fresh air equipment comprises a generation part which is configured to establish a prediction model based on a detected indoor carbon dioxide concentration time sequence, and the prediction model can generate a predicted change rate of the indoor carbon dioxide concentration; a calculation section configured to calculate a concentration difference between the detected indoor carbon dioxide concentration and outdoor carbon dioxide concentration; and a control part configured to control the rotating speed of the fan assembly based on the predicted change rate and the concentration difference, including: for the same predicted change rate, increasing the rotating speed of the fan assembly as the concentration difference increases; for the same concentration difference, the rotating speed of the fan assembly is increased along with the increase of the predicted change rate; and for the decreasing predicted change rate, when the concentration difference is within the set stable difference value interval, the fresh air assembly is closed. The invention further provides an air conditioning system. The problem of fresh air interference can be effectively solved.

The invention relates to a ventilation system for a high-voltage frequency converter room in severe cold areas and a working method of the ventilation system. The ventilation system comprises a fresh air handling unit, a fresh air pipeline, an air supply pipeline, an air inlet pipeline, an air return pipeline, an inner exhaust pipeline and an outer exhaust pipeline. The fresh air handling unit is composed of a fresh air section, a first heating section, an air return section, a second heating section, a fan section and an air supply section. A fresh air electric regulating valve is arranged on the fresh air pipeline; the first heating section and the second heating section are provided with heaters, and the fan section is provided with a fan; an air return electric regulating valve is arranged on the air return pipeline; a natural air inlet electric valve is arranged on the air inlet pipeline; an inner exhaust electric control valve is arranged on the inner exhaust pipeline; an external exhaust air electric regulating valve is arranged on the external exhaust pipeline; the ventilation system can effectively solve the problems existing in temperature control of the high-voltage frequency converter chamber in severe cold and cold areas, and is simple and compact in structure, convenient to construct and use, suitable for various working conditions and climate conditions and remarkable in energy conservation and emission reduction effect.

The invention relates to a liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method. Comprising a first-stage compressor, a second-stage compressor, a third-stage compressor, an expansion refrigerator, a first-stage compression heat exchanger, a second-stage compression heat exchanger, a third-stage compression heat exchanger, a cold box, a separator, a liquid air storage tank, a cryogenic pump, an evaporator, a cold storage circulating pump, a cold storage box, a compression heat exchange circulating pump, a compression heat storage box, a first heater, a second heater and a third heater. The system comprises a first air expander, a second air expander, a third air expander and a generator. The regeneration heater is used for guiding the compression heat generated by the compressor into the regeneration heater for regeneration and / or guiding the geothermal energy output by the geothermal energy output end into the regeneration heater for regeneration; the rotary wheel dehumidification device is used for performing cryogenic drying on the wet air; the fresh air processing unit is composed of a fresh air filter, a regeneration fan, a regeneration filter and an air supply fan.

The utility model relates to the technical field of air conditioning, in particular to a fresh air module and an air conditioner with the fresh air module, and aims to solve the problem that in the prior art, a fresh air module of a fresh air ventilator or an air conditioner is single in function. In order to achieve the purpose, the fresh air module comprises a shell and a fan arranged in the shell, a fresh air inlet and a fresh air outlet are formed in the shell, the fresh air inlet is communicated with the outdoor space, the fresh air outlet is communicated with the indoor space, and an air return opening is further formed in the shell and communicated with the indoor space. The return air inlet and the fresh air inlet are formed in the air inlet side of the fan, and the fresh air outlet is formed in the air outlet side of the fan. Through the arrangement of the return air inlet, the fresh air module has the fresh air function and the air circulation function, the requirement of people for fresh air can be met, the comfort level can be improved, and the user experience is effectively improved.

The heat recovery fresh air conditioning unit comprises a total heat recovery fresh air conditioning unit body and a control cabinet, the total heat recovery fresh air conditioning unit body is formed by splicing an upper exhaust box body and a lower air supply box body, and an exhaust side bypass electric air valve and a heat recovery device are sequentially arranged in the upper exhaust box body in the flowing direction; a first pressure difference sensor assembly and an exhaust enthalpy value sensor are distributed in the upper exhaust box, a constant air volume device, a heat recovery device, an air supply side bypass electric air valve and an air feeder are arranged in the lower air supply box body in the flowing direction, and a second pressure difference sensor assembly, a fresh air enthalpy value sensor and a fresh air enthalpy value sensor after heat recovery are distributed in the lower box body. And the control cabinet realizes the operation states of the heat recovery device and the bypass electric air valve through judgment according to the pressure difference measured by the pressure difference sensor assembly and the enthalpy value measured by the enthalpy value sensor in combination with the frequency value and the electricity consumption of the fan. Compared with a traditional control method, the method is easier to implement, the energy-saving effect is better, and the indoor air quality is higher.

The invention relates to the technical field of intelligent environment regulation and control, and particularly discloses an intelligent fresh air handling unit self-adaptive environment regulation and control method and system based on the Internet of Things. Temperature and humidity data are collected in real time through multi-source sensors deployed indoors and outdoors, and a temperature stability characteristic value is calculated through zero-sequence processing and fast Fourier transform; a humidity change rate characteristic value is extracted by combining first-order difference processing and Haar wavelet transform; the feature values are constructed into a comprehensive environment state feature vector, and the comprehensive environment state feature vector is input into a trained random forest model for environment regulation and control effect evaluation; according to the method, the sensing technology, signal analysis and machine learning prediction are fused, the sensing ability, the regulation and control precision and the self-adaptability of the system are improved, and the method is suitable for complex and changeable environment scenes and has good application prospects.

The invention relates to the technical field of steel structure industrial factory building design and construction, and discloses an intelligent assembly type steel structure industrial factory building which comprises a steel structure factory building, and the steel structure factory building comprises a supporting unit. According to the intelligent assembly type steel structure industrial factory building, the performance of the steel structure factory building is improved through three innovations, the supporting units are connected with key components in a groove embedded mode, a three-dimensional force transmission system of double supporting columns and a bottom frame is combined, roof loads are dispersed in a multi-path mode, stress concentration is reduced, and the assembly efficiency is improved by 40% through standardized prefabricated parts; the cushioning unit drives a spring to be compressed through hinged swing to form a collaborative energy dissipation mechanism, redundant buffering and straddle column pulling are used for restraining lateral displacement, the earthquake lateral displacement angle is reduced by 35%, the fresh air unit generates uniform vortex airflow through a five-fan-blade array embedded in a supporting beam, energy is saved by 20%, intelligent noise reduction and speed regulation are achieved to adapt to the high-temperature and high-humidity environment, and the structural stability, anti-seismic performance and environmental performance are comprehensively improved.

The invention relates to the technical field of air conditioners, in particular to a cabinet air conditioner with a fresh air function, which comprises an air conditioner shell and a fresh air inlet pipe, a fresh air front air outlet is arranged on the fresh air shell, the fresh air front air outlet is arranged on the front side of a fresh air second rear air outlet, and a fresh air connector is arranged on an air duct rear side plate. And the fresh air front air outlet is communicated with the air conditioner air duct through the fresh air connecting port. When the air conditioner is used, part of fresh air enters a room from the front face of the air conditioner shell through the fresh air inlet pipe, the first fresh air inlet, the second fresh air inlet, the fresh air duct, the fresh air front air outlet, the fresh air connector, the air conditioner duct and the first air conditioner air outlet, the fresh air transmission efficiency is effectively improved, and the fresh air exchange efficiency of the whole room is improved; moreover, the first air conditioner air outlet is formed in the lower middle portion of the front face of the air conditioner shell, air outlet of the air conditioner cannot directly blow the upper half body of the user, and therefore the user experience feeling is remarkably improved.

The utility model relates to the technical field of intelligent household electrical appliances, and discloses an air guide assembly which comprises a first air guide plate, a second air guide plate and a third air guide plate. The first driving part is in transmission connection with the first air guide plate so as to drive the first air guide plate to turn over; the second air guide plate is arranged in the sub-air opening in the length direction of the sub-air opening; the second driving part is in transmission connection with the second air guide plate so as to drive the second air guide plate to turn over in the sub-air opening; and under the condition that the second air guide plate is not overturned, the second air guide plate and the first air guide plate form a complete air guide plate. Thus, when a fresh air system of the air conditioner is started, the first air guide plate or the second air guide plate can be controlled to turn over according to the environment, then the size of the air outlet of the indoor unit is adjusted, the influence on the indoor temperature and the body feeling of a user due to the fact that fresh air is introduced into the room is reduced, and the use experience of the user is improved. The utility model further discloses an indoor unit and an air conditioner.