124 results about "Variable air volume" patented technology

The invention discloses an analysis and evaluation algorithm for the temperature regulation effect of a variable air volume air conditioner terminal device, and relates to the technical field of air conditioner regulation. Generating a temperature evaluation parameter and an air valve evaluation parameter based on the operation data; based on the temperature evaluation parameters and the air valve evaluation parameters, establishing a joint judgment model; according to the method, the energy waste working condition of counteracting the regional cold and hot demand can be found in time, the passive situation that treatment is carried out after the temperature is seriously deviated is avoided through early recognition and root diagnosis of the abnormal track, and the method is suitable for large-scale popularization and application. And the indoor comfort is improved.

The invention discloses a marine energy-saving variable air volume indirect type air conditioner, and relates to the technical field of air conditioning systems, the marine energy-saving variable air volume indirect type air conditioner comprises an air conditioner assembly, the air conditioner assembly comprises an air conditioner shell, one side of the air conditioner shell is fixedly communicated with a fresh air pipeline, and an air return opening is formed in the position, close to one side, of the top of the air conditioner shell. According to the marine energy-saving variable-air-volume indirect type air conditioner, by starting a multi-stage electric push rod, a piston plate is driven to extrude a citric acid solution forwards into a return air inlet pipeline and a fresh air inlet pipeline, in the air inlet process, the citric acid solution can enter the heat exchanger body in air flow, descaling is conducted on the pipeline in the heat exchanger body, and the heat exchange efficiency is improved. Citric acid has good chelation ability and can generate chelation reaction with ions such as calcium and magnesium in incrustation to form a water-soluble complex, so that the purpose of removing the incrustation is achieved, and the citric acid has low corrosivity to stainless steel due to weak acidity.

The invention provides a fresh air dehumidification energy-saving control method and system, and relates to the technical field of fresh air dehumidification energy-saving control, the outdoor temperature, the outdoor relative humidity and the actual personnel number of an independent control area are obtained in real time and compared with the preset personnel number, and the number deviation is determined; when the quantity deviation meets a preset deviation threshold value and the outdoor temperature and humidity meet preset conditions, the target fresh air volume can be calculated according to the actual personnel quantity, the total fresh air volume is divided into first fresh air and second fresh air, the first fresh air is guided to a chilled water coil pipe for cooling and dehumidification, and the second fresh air is guided to a chilled water coil pipe for cooling and dehumidification; the first fresh air bypasses the chilled water coil pipe through the bypass air duct and is not cooled and dehumidified, the second fresh air bypasses the chilled water coil pipe through the bypass air duct and is not cooled and dehumidified, and then the cooled and dehumidified first fresh air and the second fresh air are mixed and conveyed to the variable air volume valve box for air volume adjustment. And a remarkable energy-saving effect and better user experience are achieved.

The utility model belongs to ventilation system technical field, and disclose detachable maintenance's variable air volume ventilation system filter device structure, including ventilation frame, the surface of ventilation frame is connected with the connecting frame, the inside jointing of connecting frame has two clamping plates, two clamping plates are connected with filter fan piece, the inside of ventilation frame is connected with ventilation fan, the utility model discloses through the outside expansion function of composite expansion spring makes the slide of upper side and the slide of lower side always receive the opposite support force, makes two slides receive the external force and opposite approach simultaneously also make two slides opposite reset separation, make the limiting rod with the inside opposite jointing fixed of connecting frame under the magnetic attraction of first magnetic absorption piece and second magnetic absorption piece, thereby convenient with clamping plate and filter fan piece and connecting frame clamping installation, avoid the situation that filter fan piece appears to fall off, and convenient with clamping plate and filter fan piece and connecting frame separate dismounting, be convenient for the maintenance to clamping plate and filter fan piece.

The application discloses a variable air volume air conditioner cross-region air conditioner box air outlet air balance debugging method and relates to the technical field of variable air volume air conditioner debugging, which comprises the following steps: collecting air volume demands of each region served by a variable air volume terminal, obtaining target range values of each region based on regional load calculation, setting an air outlet corresponding to a region with the largest air volume demand as a first air outlet, and setting the rest of the air outlets as second air outlets and subsequent air outlets; operating an air conditioning system, so that the variable air volume terminal is in a maximum opening degree operating state to obtain a maximum air volume reference value; then, adjusting system operating parameters, so that the total air volume of the variable air volume terminal is maintained within the target air volume range of the first air outlet, and initial conditions for subsequent air outlet debugging are formed. The maximum sensible heat load of each region is obtained, and the target air volume range of each region is determined in combination with a design air supply temperature difference, so that the air volume matching is ensured from the source to meet the cooling demand of the region, and the rationality and controllability of air volume distribution are improved.

1. Name of the designed product: Controller (TBMB980IP). 2. Use of the designed product: Controller for Variable Air Volume (VAV) air conditioning system control system. 3. Design points of the designed product: The combination of shape and pattern design of the product. 4. Picture or photo best indicating the design points: Fig. 1.

The present application relates to the technical field of laboratory ventilation, and particularly relates to an intelligent variable air volume laboratory exhaust system, which comprises a collection module, a determination module, an exhaust adjustment module, a determination module, a make-up air adjustment module and a correction module. The present application adjusts the exhaust volume according to the risk index calculated based on the target position and the pollutant concentration in real time, determines the air flow channel according to the adjusted exhaust volume and the pollution point position, optimizes the air flow distribution, adjusts the make-up air volume according to the pollution point position, ensures the synergistic effect of the make-up air and the exhaust air, corrects the exhaust volume according to the change of the pollutant concentration, and ensures the long-term stable operation of the system. The present application effectively solves the problems that the fixed air volume and the single signal lead to the difficulty in adapting to the complex and changeable experimental scene, the slow response to the sudden situation, the exhaust lag and the accumulation of laboratory pollutants.

The utility model discloses a variable air volume valve integrated circuit control module, which comprises a fan, a variable air volume valve main body, a circuit board mounting groove and a carriage, the variable air volume valve main body is arranged in the carriage in a sliding inlay mode, the circuit board mounting groove is arranged in the variable air volume valve main body, a baffle plate is arranged at the end part of the circuit board mounting groove, and the baffle plate is arranged in the carriage. A circuit board mounting groove is formed in the top of the variable air volume valve body, a circuit board is arranged in the circuit board mounting groove, heat dissipation strips are arranged on the top of the variable air volume valve body, pressing plates are arranged on the two sides of the interior of the circuit board mounting groove, a baffle is arranged at the end of the circuit board mounting groove, connector lugs are arranged on the two sides of the end of the baffle, and a handle is arranged in the middle of one side of the baffle. According to the utility model, the circuit board mounting groove is arranged, the circuit board mounting groove can be controlled in a drawing manner, the circuit board can be conveniently mounted through the circuit board mounting groove, the circuit board can be locked through the pressing plate, the baffle plate is arranged at the end part of the circuit board mounting groove, and the connector lugs are arranged at the two sides of the end part of the baffle plate.

1. Name of the product in this design: Graphical User Interface for Laboratory Intelligent Management Platform of Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design feature of this product is its graphical user interface. 4. The image or photograph that best illustrates the design's key points: Design 2 main view. 5. Design 2 is designated as the basic design. 6. Purpose of the graphical user interface: It is used by users to view and operate equipment, environment, and safety management in the laboratory management platform. 7. Human-computer interaction method of graphical user interface: The main view of Design 1 is the main interface of the equipment management platform. Clicking "VAV" (variable air volume) (control cabinet) in the main view of Design 1 will enter the change status diagram of the Design 1 interface; The main view of Design 2 is the main interface of the environmental management platform. Clicking any air pressure value in the middle of the interface in the main view of Design 2 will enter the change status diagram of the Design 2 interface; The main view of Design 3 is the main interface of the safety management platform. Different floors can be selected to view equipment, and the equipment name can be entered to click to query the equipment. 8. Other situations requiring explanation: Other explanation: "X" in the interface represents text.

The utility model provides a differential pressure interlocking energy-saving device suitable for an indoor air conditioner, which comprises an air handling unit, a fresh air section arranged at the front end of the air handling unit, an air return section arranged above the air handling unit and an air supply section arranged at the rear end of the air handling unit, working equipment communicated with the exhaust pipe is arranged indoors, the working equipment is communicated with an energy-saving unit, the energy-saving unit comprises an electric closed valve and a variable air volume electric valve which are arranged on the exhaust pipe, the electric closed valve is electrically connected with the working equipment, and the variable air volume electric valve is electrically connected with a pressure difference interlocking device arranged indoors. According to the air conditioning system, frequent changes of the air supply and return volume and the cold and heat source consumption of the air conditioning system caused by opening and closing of the working equipment can be avoided, and the energy-saving effect is achieved.

The invention discloses a control method of a variable air volume ventilation air conditioner and an air conditioning system, and relates to the technical field of heating and ventilation control. According to the control method, the real-time evaporation temperature of the refrigerant is collected, the target evaporation temperature is updated, the total load, the real-time evaporation temperature and the target evaporation temperature are input into the load controller, the rotating speed error of the compressor is calculated, then the real-time current and the rotating speed error are input into the rotating speed controller, and the input current of the compressor is updated. In the control process of the variable air volume ventilation air conditioner, the feed-forward control part of the load controller is continuously updated. The feed-forward control part updated in real time comprises the magnetic resistance change of the compressor, the driving error is calculated when the compressor is dormant, the magnetic resistance coefficient of the rotating speed controller is updated, and the feed-forward control part is initialized according to the updated magnetic resistance coefficient, so that the control precision of the air conditioner compressor is improved.

The invention discloses a clean and intelligent multi-stage variable-air-speed tea winnowing machine capable of regulating and controlling the air direction. The tea winnowing machine comprises a winnowing box, a winnowing module and a collecting module. The upper end of the winnowing box is provided with an air inlet pipe and a feeding port, the lower end of the winnowing box is provided with an air outlet pipe, the air inlet pipe is provided with a fan, and one side of the fan is connected with a dust removal box. The winnowing module is arranged in the winnowing box and comprises a plurality of winnowing channels and a wind direction adjusting mechanism, and the wind direction adjusting mechanism can adjust the wind direction and the wind strength of each winnowing channel; the collecting module can collect the sorted tea leaves. The multiple winnowing channels and the air direction adjusting mechanisms are arranged in the winnowing box, the air direction and the air speed of each stage of winnowing channel can be adjusted through the air direction adjusting mechanisms, clean air filtered by the dust removal box is blown into the air inlet pipe through the draught fan for winnowing, and therefore the tea winnowing device adapts to grading winnowing of different types of tea.

The utility model discloses a laboratory self-adaptive variable air volume ventilation control system, and relates to the technical field of laboratory ventilation equipment control. The system comprises a temperature and humidity sensor, a pressure difference detector, a harmful gas monitoring sensor, an infrared camera, a data caching module, a multiplexing switch, a data preprocessing module, a controller module, a man-machine interaction module, a clock module, a memory module, a data transmission module, a level conversion and pulse width adjustment circuit, a variable air volume adjusting valve and a power supply module. By arranging various monitoring sensors, the temperature and humidity in a room, the indoor pollution gas concentration, the indoor personnel condition, the indoor pressure condition and the like are monitored in real time, the stability of the indoor pressure can be effectively kept through the controller module, the air supply driving unit, the air supply adjusting valve and the air feeder, the indoor pressure is flexibly adjusted and controlled, the adjusting speed is high, and the indoor pressure can be effectively controlled. The effect is good, and the constant-pressure laboratory environment effectively ensures the health of indoor workers.

The utility model discloses a variable air volume efficient air outlet which comprises a box body, an air inlet, a flow equalizing plate, an efficient filter and an air outlet flow diffusing plate are arranged on the box body, an air passing plate and an air volume adjusting plate which are arranged in parallel are arranged in the box body, and air passing openings are evenly distributed in the air passing plate. Adjusting bodies in one-to-one correspondence with the air passing openings are evenly distributed on the surface, facing the air passing plate, of the air volume adjusting plate, the cross sectional areas of the adjusting bodies are gradually reduced in the direction facing the air passing plate, and a driving structure used for enabling the air volume adjusting plate to move towards or away from the air passing plate is arranged on the air volume adjusting plate. The air outlet volume of the efficient air outlet can be changed so as to meet the air outlet volume requirements of different scenes.

The utility model discloses a fresh air handling unit variable air volume adjusting device which comprises a fresh air handling unit body, the surface of the fresh air handling unit body is communicated with a ventilation shell, the surface of the ventilation shell is provided with an air volume adjusting mechanism, one side of the ventilation shell is provided with an installation frame, and the top of the installation frame is provided with a shielding mechanism. A dustproof net is detachably arranged on the surface of the mounting frame; the air volume adjusting mechanism comprises a driving shaft, the driving shaft penetrates through the ventilation shell, the driving shaft is rotationally connected with the surface of the penetrating position of the ventilation shell, an adjusting plate is fixed to the surface of the driving shaft, a guide plate is fixed to the lower portion of the inner wall of the ventilation shell, a mounting frame is fixed to the surface of the ventilation shell, and an adjusting structure is arranged on the surface of the mounting frame. The air volume can be dynamically adjusted according to actual requirements through the air volume adjusting mechanism, and the problem that use requirements are difficult to meet due to fixed air hole design is solved.

The invention provides a variable air volume air conditioner main air pipe dynamic air data analysis and balance control method which comprises the steps that the real-time air volume value of each branch pipe, the temperature deviation value of a tail end area and area use intensity statistical data are obtained, the air volume value is compared with the temperature deviation value, and a preliminary evaluation result of the air supply effect of each branch pipe is obtained; according to the preliminary evaluation result, branch pipes with the use intensity continuously higher than the design expectation are recognized through a random forest algorithm, and a target branch pipe list with the air volume being judged to be excessive and the tail end temperature deviation being still high according to the original distribution proportion is extracted; and according to the deviation magnitude, the air distribution proportion set value of the branch pipe needing to redistribute air is dynamically adjusted, so that the distribution proportion is close to the actual load distribution reflected by the regional use intensity statistical data, and the adjusted air distribution target value of each branch pipe is obtained.

This invention relates to an intelligent fume hood airflow control system based on behavior prediction and dynamic optimization, belonging to the field of laboratory ventilation control technology. The system includes: an environmental sensing module that collects real-time sensing data streams; an intelligent control decision module that dynamically adjusts the face velocity setpoint based on pollutant concentration, predicts and generates variable air volume valve control commands in advance based on the trend of moving door opening changes, and automatically switches between working and standby modes based on personnel presence; a collaborative scheduling module that interacts bidirectionally with the building management system and other fume hoods to collaboratively adjust the control strategies of each fume hood; and an execution and update module that drives the actuators and collects feedback status, triggers alarms or emergency exhaust when abnormal conditions are detected, and feeds back the abnormal events to the intelligent control decision module to update the model rule base. This system achieves predictive adjustment of fume hood face velocity, multi-condition adaptive optimization, multi-hood collaborative scheduling, and closed-loop self-updating.

The utility model discloses an active carbon purification box with variable treatment air volume, which relates to the technical field of purification boxes, and comprises a purification box body, one end of the purification box body is provided with an air inlet pipe orifice, the other end of the purification box body is provided with an exhaust pipe orifice, and the side wall of the purification box body is provided with three drawing openings at intervals from top to bottom. Supporting plates are arranged at the positions, located at the three drawing openings, of the inner wall of the purification box body, purification parts are movably arranged in the three drawing openings correspondingly, each purification part comprises a drawing box arranged at the top end of the corresponding supporting plate in a sliding mode, the drawing boxes are in a drawer shape, the left side wall, the right side wall and the bottom wall of each drawing box are hollowed out, grid plates are arranged at the hollowed-out positions, and activated carbon is arranged in the drawing boxes; a circular-truncated-cone-shaped air guide barrel is arranged at the air inlet pipe opening, and an air inlet control mechanism is arranged in the purification box body and located between the purification part and the air guide barrel; the flue gas direct blowing can be avoided, and flue gas with different air inlet volumes can be fully treated.

The utility model provides an air volume adjusting device of a segmented adjusting heating ventilation air conditioner, belongs to the field of heating ventilation air conditioners, and aims to solve the problem that independent air volume adjustment is inconvenient to carry out on different segments of air flues. The air volume adjusting device comprises a ventilation pipe, a servo motor is fixedly connected to the ventilation pipe, and the other end of a spring is fixedly connected with a limiting plate; and the limiting plate is fixedly connected with a clamping block. According to the device, through the arranged partition plates, when the air outlet amount of different air openings is adjusted, corresponding servo motors on ventilation pipes can be started, the servo motors drive first bevel gears to rotate, the first bevel gears can drive threaded rods to rotate through second bevel gears, and the threaded rods can push moving blocks to move when rotating; the movable block drives the supporting net plate to move while moving, the blocking blocks on the supporting net plate can be inserted into the through holes of the partition plate, the size of gaps of the through holes of the partition plate can be reduced through slow movement, and therefore the air outlet amount is adjusted, and the through holes distributed at equal intervals can evenly conduct air outlet control.

The application discloses an intelligent clean air conditioner automatic control system and an integrated control method, and belongs to the technical field of clean environment control. In view of the problems of dispersed control, high energy consumption and insufficient dynamic response of the existing clean air conditioner system, the application integrates intelligent control algorithms and hardware facilities, constructs a multi-parameter collaborative optimization model, and realizes real-time and accurate regulation and control of the temperature, humidity, air flow speed and pressure of a clean workshop. The system comprises a central controller, a sensor network, an actuator and a control software module, dynamically adjusts air valves and variable air volume devices through data fusion and machine learning algorithms, reduces air resistance and turbulence, and optimizes air flow organization efficiency. At the same time, the system supports remote monitoring, fault self-diagnosis and self-adaptive energy-saving mode, and significantly improves the operation stability and energy efficiency ratio. The integrated control method of the application solves the pain points of the insufficient intelligence and high maintenance cost of the traditional system, and has significant energy-saving benefits and environmental adaptability.

This invention proposes an adaptive variable frequency air volume control method for fans, belonging to the field of air volume control for variable air volume air conditioning systems. The method predicts the required air volume based on the actual operating conditions of each area and detects the actual air volume to calculate the total required air volume. Combined with the fan characteristic curve, the initial frequency of the fan is obtained. Then, by using the difference between the total required air volume and the total measured air volume and the opening of the terminal damper, the initial frequency of the fan is corrected according to the fan frequency correction rule, thereby achieving adaptive control of the fan frequency. This achieves energy-saving effects while taking into account the air volume demand of the most unfavorable terminal.

This utility model relates to a marine 100% fresh air high-efficiency variable air volume energy recovery air conditioning system, including a fresh air inlet box, an air supply filter, a heat recovery rotor, a surface cooler, a water baffle, a humidifier, an air supply fan, a fresh air supply static pressure box, a return air inlet box, a return air filter, a return air fan, and an electrical control box. Hot water heaters are installed between the air supply filter and the heat recovery rotor, and between the heat recovery rotor and the surface cooler. A temperature controller is installed on the outlet side of the hot water heater between the air supply filter and the heat recovery rotor. A temperature and humidity sensor and a micro-pressure differential sensor are installed inside the fresh air supply static pressure box. The heat recovery rotor is a molecular sieve total heat recovery rotor, consisting of a rotor with a molecular sieve adsorption layer structure having adsorption micropores no larger than 4 angstroms coated on the surface of the core substrate, and thickened to achieve a heat recovery efficiency of over 75%. This system has high heat recovery efficiency, low energy consumption for fresh air treatment, and intelligent variable air volume adjustment, making it suitable for use in marine air conditioning systems.

The invention discloses an intelligent partition energy-saving control method for an air conditioner pipe network system, which comprises the following steps of: 1, acquiring multi-source data, and acquiring environmental parameters, load parameters and meteorological parameters in real time; 2, dynamic partition modeling is carried out, and a pipe network is divided into intelligent partitions capable of being regulated and controlled independently based on regional load characteristic differences and real-time data; step 3, load prediction and optimization: predicting cooling and heating load demands, and generating a dynamic energy supply strategy; 4, cooperative control is carried out, and precise regulation and control of partitioned cooling / heating are achieved through a central controller in a coordinated mode; 5, feedback and self-adaptive adjustment are carried out, and partition boundaries and energy supply parameters are dynamically optimized based on real-time environment parameters and user comfort level feedback; according to the method, the inner area, the outer area and the functional area are divided through dynamic zoning modeling to predict the load demand, the problems of cold and heat offset and energy consumption waste caused by fixed zoning of a traditional air conditioning system are solved, and cooperative regulation and control are achieved through the variable air volume terminal, the variable frequency pump and the electric two-way valve.

The utility model discloses a venturi variable air volume valve which comprises a valve body, a valve element and a valve rod are arranged in the valve body, the valve rod is arranged on the valve body through a plurality of supporting frames, installing flanges are arranged on the two sides of the valve body, an installing plate is arranged on the valve body, an executing mechanism is arranged on the installing plate, and the executing mechanism is arranged on the valve body. The executing mechanism is connected with the valve rod through the connecting rod assembly, and the control module is electrically connected with the executing mechanism and sends a working instruction to the executing mechanism so as to control stretching and maintaining of the push rod. The electromagnetic actuating mechanism linearly pushes the push rod to stretch out and draw back, the connecting rod mechanism drives the valve rod to achieve air volume adjustment, the structure is simplified, air volume control stability and reliability are improved, product fault points can be effectively reduced, and daily maintenance workload is greatly reduced.

The utility model relates to dustproof variable air volume control valve field provides a kind of fast detachable dustproof variable air volume control valve for laboratory, including air duct pipe body, sealing rotary plate, drive assembly, pull cover and filter screen, the drive assembly rotation is arranged on air duct pipe body, the sealing rotary plate cooperation is arranged on drive assembly, the pull cover is slidably provided with filter screen, filter screen is slidably arranged inside air duct pipe body, the utility model, simple structure, effect is remarkable, the air volume in the sealing rotary plate of drive assembly control is controlled to air duct pipe body, air is filtered by the filter screen of sliding arrangement in air duct pipe body, the pull cover is quickly disassembled to filter screen, and maintenance efficiency is improved.

The present application relates to the technical field of intelligent control, in particular to a variable air volume adjustment method of a fume hood, an electronic device and a storage medium, the fume hood has an opening, the opening is provided with a sliding door, the method comprises the following steps: in response to the experimental mode selected by the user on the interactive interface of the terminal, obtaining the target face wind speed set by the user and the opening height of the sliding door; obtaining the current height of the sliding door detected by the displacement sensor, and determining the moving distance and the moving direction of the sliding door according to the current height and the opening height; triggering the controller to control the driving unit to drive the sliding door to move in the moving direction until the displacement sensor detects that the sliding door reaches the opening height; obtaining the width of the sliding door, and determining the target exhaust air volume of the fume hood according to the width of the sliding door, the opening height and the target face wind speed; and triggering the controller to control the variable air volume venturi valve to adjust the air volume of the fume hood to the target exhaust air volume; the present application can realize accurate and efficient control of the face wind speed and the exhaust air volume in the fume hood.

The invention relates to the technical field of deep ground space air volume adjustment, in particular to a deep ground space variable air volume natural wind simulation system based on infrared thermal imaging and a control method thereof.The system comprises an infrared thermal imaging sensing module used for monitoring heat distribution in a deep ground space in real time; the control module comprises a data processing unit; the trajectory prediction unit is used for predicting a personnel moving trajectory based on a neural network algorithm and calculating expected personnel intensity distribution; the regulation and control unit is used for carrying out region classification according to a heat source identification result and a personnel intensity prediction result, and calculating air quantity demanded quantity for different regions; the variable-frequency fan module is used for outputting corresponding air volume according to the control instruction of the regulation and control unit; the air supply outlet is used for achieving directional air supply. The thermal imaging data are converted into the control signals of the air volume and the air direction of the air port, dynamic adjustment and accurate response of the air supply strategy are achieved, and the adaptability and the adjustment accuracy of the system to the complex thermal environment are remarkably improved.

The application discloses a kind of variable air volume system summer fresh air optimization control methods, it is characterized in that, by comparing indoor and outdoor air enthalpy, when outdoor air enthalpy is higher, according to the number of area, find the most unfavorable area of the largest fresh air demand, when the most unfavorable area fresh air demand changes greater than set value, using multi-objective genetic optimization control algorithm to solve the most unfavorable area room temperature set value, and with the value as the basis to calculate VAV system total fresh air quantity, and accordingly as basis adjustment fresh air valve, return air valve and exhaust valve to achieve fresh air control.The control method is suitable for fresh air ratio control in variable air volume system, and the control strategy has good robustness, and has outstanding effect in improving building multi-area indoor air quality and saving operating energy consumption.

A fresh air opening and an air return opening are formed in the upper end face of the left side of a box body, a fresh air electric adjusting air valve and an air return electric adjusting air valve are arranged on the fresh air opening and the air return opening respectively, and a fresh air induced draft fan is correspondingly arranged at the position, in a mixed air inlet cavity, of the fresh air opening. The box body is sequentially provided with an air filter, an air heat exchanger, a water retaining device, a humidifier and a centrifugal fan from the mixed air inlet cavity to the right side, the centrifugal fan is upwards and correspondingly connected with an air outlet box on the upper end face of the right side, the air outlet box is upwards provided with an air outlet, the humidifier comprises a humidifying pipe and a buffer tank, and the buffer tank is provided with an air inlet. The buffer tank is externally connected with a steam inlet pipe, a steam adjusting valve is arranged on the steam inlet pipe, the buffer tank is connected with a humidifying pipe, the humidifying pipe is correspondingly arranged towards the water retaining device, and a water bearing disc is arranged below the water retaining device and the humidifier. The humidifier is simple and compact in structure, and can efficiently and safely humidify and control the air supply temperature and humidity.

The application provides a kind of variable air volume air conditioning system air volume compensation and balance adjustment optimization method, belong to variable air volume air conditioning system technical field, the method includes: based on the change parameter and the pre-defined attribute parameter, generate air volume compensation model;Based on air volume compensation model, the opening of corresponding room end air valve and the total air supply of variable air volume air conditioning system change parameter, the air supply variation range of corresponding room is calculated;If the demand air volume of corresponding room exceeds the air supply variation range of corresponding room, based on optimization goal, the corresponding air volume compromise strategy is used.Compared with the prior art, the application can automatically calculate the air supply variation range of each room according to the air parameters of each room, ensure that the air supply of each variable air volume end room changes near the demand air volume, make the air supply distribution of the whole variable air volume air conditioning system relatively uniform, improve the comfort of each end room while reducing energy consumption.