974 results about "Air exchange" patented technology

The invention discloses a container type battery environment monitoring system based on edge calculation, which relates to the technical field of battery environment monitoring, and is characterized in that sensors and edge nodes are arranged in cabins of a battery energy storage device to acquire internal operation environment data of the container type battery energy storage device; a pneumatic environment data set and a water vapor critical data set are formed after data processing, cross-cabin air exchange efficiency Eex is constructed for air exchange qualification evaluation, a condensation nucleation potential index Cnp is constructed when air exchange is abnormal, and a comprehensive condensation risk index Rall is generated in combination with the cross-cabin air exchange efficiency Eex for condensation risk evaluation. Instructions such as fan power adjustment, dehumidification device start and stop and power limitation are issued according to the risk level, and information labels are added to the evaluation data set and uploaded to the cloud in real time. According to the invention, the real-time monitoring of the container type battery environment, the dynamic prediction of the condensation risk and the automatic control are realized, and the safety and reliability of the operation of the energy storage system are improved.

The invention relates to the technical field of fuel cells, in particular to a heat dissipation device for hydrogen fuel cell stacks, which comprises a through pipe, a drainage fan, drainage plates and an opening degree adjusting assembly, a plurality of cell stacks are arranged between two end plates, a cooling cavity is formed between the adjacent cell stacks, and cooling plates are arranged on two sides of each cell stack, so that the heat dissipation effect is improved. External air is conveyed to the cooling cavities through the penetrating pipes penetrating through the end plates and the cell stack, airflow power is provided by the drainage fans, the air exchanges heat with the cooling plates in the cooling cavities and then is guided to the outer side surface of the cell stack through the drainage plates arranged around the cooling cavities, and directional cooling of a cell stack shell is achieved. The opening adjusting mechanism is arranged in the cooling cavity, and the distance between the drainage plate and the surface of the cell stack can be adjusted in real time according to temperature feedback, so that the section and the flow speed of an airflow outlet are changed, the heat dissipation intensity of the outer side of the cell stack is dynamically controlled, and the problem that the temperature of the outer side of an existing hydrogen fuel cell stack is not easy to control is solved.

The invention provides an electric pressure cooker. The electric pressure cooker comprises a cooker body and a cooker cover detachably arranged on the top of the cooker body. An air cavity is formed in the cooker cover, and an exhaust valve communicated with the cooker body is mounted in the air cavity; a first air hole for exhausting air is formed in the top of the air cavity; a second air hole and a third air hole are formed in the bottom of the air cavity; the pot body is provided with a second air channel and a third air channel, the air outlet end of the second air channel is located in the middle of the pot body, and the air outlet end of the third air channel is located at the bottom of the pot body; an air exchange mechanism and an air release mechanism are mounted at the air cavity; the ventilation mechanism changes the unblocking and blocking states of the air holes through adjustment, and only outward exhaust is achieved; the gas release mechanism can open the gas release valve through adjustment, so that high-pressure gas in the pot body is discharged; the exhaust direction of high-pressure air leakage can be adjusted and changed, different use environments are met, and the applicability is improved.

The invention relates to the technical field of building energy saving and comfort level optimization, in particular to a building energy consumption and comfort level target optimization method and system based on a neural network and a genetic algorithm, by adopting the method provided by the invention, the weight and bias of a BP neural network are optimized through a grey wolf algorithm (GWO), and the prediction precision is improved; on the basis of a GWOBP model, NSGA-II is used for multi-objective optimization, a Pareto optimal solution is obtained, the optimal combination of the near-zero-energy-consumption residential building envelope structure (the types and thicknesses of wall bodies and roof thermal insulation materials, the types of windows and the horizontal sunshade overhanging length) and the number of ventilation times is selected, and the number of ventilation times is calculated. The problem of multi-objective optimization of annual primary energy consumption and annual uncomfortable degree hours of the residential building is solved, and an optimal balance point between the energy consumption and the comfort degree is found.

The invention discloses an air cooling type heat exchanger structure capable of shunting and conducting heat. An air cooling type heat exchanger structure capable of shunting and conducting heat comprises a heat exchanger, and an air suspension fan is connected beside the heat exchanger, and is characterized in that a device body is arranged in the heat exchanger, a lower connecting frame is arranged below the device body, a water storage tank is fixed on the lower connecting frame, and a shunting connecting pipe is arranged beside the water storage tank; heat-conducting boxes are mounted on the surfaces of the shunting connecting pipes; an outer fixing shell is arranged in the device body. The air suspension fan is connected with the heat exchanger, during use, the water storage tank supplies water to the heat conduction box, the water flow is preheated in cooperation with the flow dividing connecting pipe, then when the water flow is sprayed to the fins, water drops with a certain temperature can be rapidly evaporated, air in the pipe bundle is cooled through cooperation of moisture and the fan, and the cooling effect of the air in the pipe bundle is improved. And redundant water flows downwards and is collected in the distilled water guide hopper to work circularly, so that the cooling speed is increased, and the air exchange efficiency is also improved.

The invention discloses a mine underground cooling and dehumidifying heat exchanger and an implementation method thereof. The condensate water heat exchange unit is additionally arranged before air enters the refrigerant heat exchange unit, the problem that cold energy of condensate water is wasted during dehumidification is solved, and the heat exchange efficiency of the refrigerant heat exchange unit is improved; the condensate water heat exchange unit and the refrigerant heat exchange unit are inclined and are arranged in a crossed mode in the inclined direction, and the turbulent flow effect of an air channel is improved. Outlets of condensate water and refrigerant fluid are in contact with air preferentially, so that countercurrent flow heat exchange is realized when the air exchanges heat with water and refrigerant, the heat exchange temperature difference is larger, and the efficiency is higher; the fin units are arranged in a bent mode, so that condensate water on the heat exchange tubes flows to a water tank below more accurately and quickly through bent grooves. A water tank is arranged below the heat exchange pipe to collect condensate water, and the loss of cooling capacity is reduced by utilizing residual cold of the condensate water through the condensate water heat exchange unit; the system is used for underground cooling and dehumidification, the underground cooling capacity is utilized to the maximum extent, the efficiency of the heat exchanger is improved, and the energy utilization rate is increased.

The invention discloses an automatic material taking device for project lamp processing, comprising: a sleeve shell, a limiting block is fixed on the outer side of the sleeve shell, a limiting shaft is slidably arranged in the limiting block, and a second sensor is arranged at the lower end of the limiting shaft; the gas exchange pipe and the sleeve shell are integrally formed; the negative pressure clamping part is arranged in the gas exchange tube and comprises a negative pressure tube, a miniature vacuum pump fixed on the negative pressure tube and a suction cup arranged at the lower end of the negative pressure tube, and a first sensor is arranged at the lower end of the suction cup; the first cover plate and the second cover plate are arranged at the upper end of the sleeve shell, an air pressure control part is arranged between the first cover plate and the second cover plate, the air pressure control part comprises a servo motor and a rotatable control frame plate, and a ventilation hole is formed in the control frame plate. The lens is adsorbed through the multiple independent negative pressure clamping parts, and the risk of microcrack generation is effectively eliminated; by adopting a micro vacuum pump and a sucker, the adsorption stability is ensured.

The utility model provides an electronic atomization device, a power supply main body for the electronic atomization device and an atomization main body. The electronic atomization device comprises a front side and a rear side which are opposite in the thickness direction. A first liquid storage cavity; the atomizing assembly is used for receiving the liquid matrix in the first liquid storage cavity and atomizing the liquid matrix to generate aerosol; the second liquid storage cavity is used for supplementing the liquid matrix to the first liquid storage cavity; the second liquid storage cavity and the first liquid storage cavity are arranged at intervals in the longitudinal direction; the first liquid transfer channel and the second liquid transfer channel are arranged at intervals in the thickness direction; the distance between the first liquid transfer channel and the front side is larger than the distance between the second liquid transfer channel and the rear side, and the distance between the second liquid transfer channel and the front side is larger than the distance between the second liquid transfer channel and the front side. According to the electronic atomization device, when one of the first liquid delivery channel and the second liquid delivery channel delivers the liquid matrix from the second liquid storage cavity to the first liquid storage cavity, the other one can be used for air exchange to balance the pressure between the first liquid delivery channel and the second liquid delivery channel.

The invention relates to a coating oven and a heat treatment method thereof. The coating oven comprises a heat exchange unit and a directional air supply unit, the heat exchange unit is communicated with an air exchange unit of the coating oven, the air exchange unit comprises an exhaust assembly and an air inlet assembly, the air inlet assembly is connected with an air duct of the coating oven, and the heat exchange unit is used for recycling waste heat of gas exhausted by the exhaust assembly. Fresh air guided in through the air inlet assembly is preheated to a first temperature interval and then conveyed to the air duct; the directional air supply unit communicates with the air duct, the air outlet direction of the directional air supply unit faces the base material conveying area, and the directional air supply unit is used for guiding air in the air duct to the base material conveying area. According to the scheme, heat exchange can be conducted through the temperature difference between the high-temperature exhaust air and the low-temperature fresh air of the coating oven, so that energy waste is avoided, and meanwhile energy consumption needed by fresh air heating is reduced.

The invention discloses an efficient heat dissipation high-voltage cabinet, and relates to the field of high-voltage cabinets. Through the cooperative operation of the heat dissipation fan at the bottom of the cabinet body and the ventilating fan at the top of the cabinet body, hot air and dust can quickly enter the air guide cavity through the long groove and then are exhausted through the ventilating fan, the flowing speed of air in the cabinet is increased, the heat dissipation efficiency is greatly improved, and the damage of high temperature to the high-voltage cabinet is effectively reduced through the efficient heat dissipation mode; meanwhile, the cleaning mechanism can automatically clean the filter screen, the cleaning brush can be driven by the driver to ascend, descend, rotate and transversely reciprocate, floating dust on the surface of the filter screen is cleaned in an all-dimensional mode, impurities are adsorbed, when the ventilator rotates reversely, airflow further blows off dust adsorbed by the filter screen, the filter screen is kept smooth all the time, and the stable ventilation quantity is maintained; therefore, the problems of reduced ventilation sectional area and increased airflow resistance caused by blockage of the filter screen are avoided, continuous and efficient heat dissipation of the high-voltage cabinet is ensured, frequent manual cleaning of the filter screen is not needed, and the labor cost and the maintenance time are saved.

The invention belongs to the field of ventilation equipment, and particularly relates to a window type ventilator of a periscopic air duct, the window type ventilator comprises an air outlet duct and an air inlet duct, the air inlet duct comprises a first vertical section, the air outlet duct comprises a second vertical section, a heat exchange cavity is arranged in the first vertical section, the second vertical section is communicated with the heat exchange cavity, a heat exchange device is arranged in the heat exchange cavity, and the heat exchange device is communicated with the first vertical section. A dust removal device is further arranged in the air inlet duct and comprises two electrostatic film sets arranged at intervals, a rotating mechanism is arranged at one end of each electrostatic film set, and the rotating mechanisms can adjust the opening degree of the electrostatic film sets through rotation so as to adapt to the inlet flow of different outside air; external air exchanges heat with exhausted indoor air through the heat exchanger, then is dedusted through the dedusting device, and finally enters a room.

The utility model discloses a fresh air device for a clean workshop, and relates to the technical field of clean workshops. The fresh air device for the clean workshop comprises a box body, an air exchange mechanism used for exchanging air in the clean workshop is arranged in the box body, a filtering mechanism used for filtering circulating air is arranged in the box body, the filtering mechanism comprises a second filtering plate and a sliding plate, the second filtering plate is installed on the inner wall of the box body, and the sliding plate is installed on the inner wall of the box body. The sliding plate is slidably connected to the surface of the inner wall of the second filter plate. According to the fresh air device for the clean workshop, by arranging the filtering mechanism, the problems that when an existing fresh air exchange device is used, the cold and hot air fed into a room can be adjusted by replacing the air directions of an upper fan and a lower fan, but dust may be adsorbed to the inner side of a filtering plate when the device is used before; the problem that dust on the inner side of the filter plate is possibly blown into a room to affect the indoor environment after the fan is adjusted to rotate is solved, and the beneficial effect that the dust can be prevented from being blown into the room to affect the indoor environment is achieved.

The invention discloses a modularized intelligent power distribution cabinet and a method, and relates to the technical field of intelligent power grid power distribution cabinets. The intelligent power distribution cabinet comprises a power distribution cabinet main body used for an intelligent power grid, and further comprises a separation frame arranged in the power distribution cabinet main body and used for dividing the internal space of the power distribution cabinet main body into a power distribution area and an adjusting area, and the side part of the separation frame is provided with a temperature and humidity sensor used for monitoring the internal temperature and humidity of the power distribution area; the air exchange unit comprises an air inlet assembly and a cleaning assembly; the adjusting unit comprises a circulating assembly and an adsorption assembly. The system has the advantages that the temperature and humidity in the power distribution area can be monitored in real time during working, accurate control over the temperature and humidity in the power distribution area can be achieved in an external circulation heat dissipation and internal circulation dehumidification temperature control mode, and the service life of a power distribution unit in the power distribution area is prolonged; and meanwhile, automatic cleaning and regeneration of a ventilation grating opening and an activated carbon adsorption plate are achieved in the heat dissipation and dehumidification process, and the intelligent degree and the automation degree are higher.

The embodiment of the invention provides an environment cleanliness measurement and control method and device, computing equipment and a storage medium, and the environment cleanliness measurement and control method comprises the steps that multiple parameters of a target environment are obtained, and the multiple parameters comprise at least two of the following parameters: the number of times of ventilation, the FFU full distribution rate, the temperature and humidity, the pressure gradient, the equipment heat dissipating capacity and the airflow organization mode; the multiple parameters are input into a cleanliness prediction model, regulation and control parameters output by the cleanliness prediction model are obtained, and the cleanliness prediction model calculates and obtains the regulation and control parameters based on the multiple parameters and the incidence relation between coupling information among the multiple parameters and the target cleanliness; and corresponding parameters in the multiple parameters are adjusted to target values based on the regulation and control parameters, so that the target environment cleanliness reaches the target cleanliness. According to the scheme, a single-factor influence rule is independently analyzed, a multi-factor coupling mechanism is researched on the basis of an orthogonal experimental method, and a complete cleanliness prediction model is constructed. And factors and coupling action mechanisms thereof can be determined more comprehensively.

The invention discloses a vehicle monitoring method and device based on multi-modal fusion perception. The method comprises the steps that when it is monitored that a vehicle enters a locked state, the pressure change of a seat in the vehicle or the micro-motion characteristic of a detained object in the vehicle is collected; when the pressure change or the micro-motion feature meets an event triggering condition, triggering equipment in the vehicle to start, and collecting image feature information and audio feature information of the retained object; obtaining time-frequency spectrum feature information; processing the three kinds of information by using a feature fusion model to obtain joint reliability; when the joint reliability is higher than a reliability threshold, generating an emergency processing strategy; and according to the emergency processing strategy, the vehicle is triggered to conduct air exchange or ventilation operation. According to the invention, the technical problem of accidents caused by high temperature or oxygen deficit and the like in the vehicle due to the fact that a single sensing mode of a vehicle monitoring system in the related technology is difficult to effectively detect whether life bodies are retained in the vehicle in a vehicle locking state and an emergency processing strategy cannot be taken in time is solved.

The invention relates to the field of RFID high-density file cabinets, in particular to RFID high-density file management equipment which comprises a cabinet body, a control panel is installed on one side of the middle of the front end of the cabinet body, an object taking area is formed in the lower side of the middle of the front end of the cabinet body, a limiting frame is installed on the front side wall in the cabinet body, and a sealing belt is slidably connected to the inner side of the limiting frame. A main frame is installed in the middle of the interior of the cabinet body, side plates are arranged on the two sides of the main frame, a servo motor is installed on the lower portion of one side of the main frame, the driving end of the servo motor is connected with a first transmission belt set, and the servo motor is connected with a rotating shaft on the lower side through the first transmission belt set. Meanwhile, on the premise that flexible movement is guaranteed through a single notch type fetching opening, the air exchange amount can be reduced to the minimum, a more stable storage environment is provided for the archives, and the storage box is particularly suitable for storing precious archives sensitive to temperature and humidity.

The invention belongs to the technical field of container energy storage, and particularly relates to a cooling and heat preservation system for container energy storage and a control method.The cooling and heat preservation system comprises an energy storage container composed of an outer box body and an inner box body arranged in the energy storage container, box doors are hinged to the two ends of the outer box body, and vent grooves are formed in the box doors; a mounting frame is arranged in the inner box body, and a battery pack is arranged on the mounting frame; the air exchange assembly comprises air exchange boxes symmetrically arranged above the two ends of the inner box body, and air exchange fans are installed on the air exchange boxes on the two sides; the air guide assembly comprises an air guide pipe and a supporting plate; the supporting plate is fixed to the lower portion in the inner box body, and air holes are evenly distributed in the supporting plate. By arranging the ventilation assembly and the heating piece, the working mode of the equipment can be automatically switched according to the detected temperature, and if the internal temperature is higher than the upper limit threshold value, the equipment enters the heat dissipation mode; and if the internal temperature is lower than the lower limit threshold value, entering a heat preservation mode to ensure that the battery pack stably operates in a suitable temperature environment.

The ventilation device comprises a ventilation mechanism and a cleaning mechanism, a driving motor is started to drive a driving shaft to rotate, and fan blades are driven to rotate through rotation of the driving shaft, so that air in the plant exchanges with external air through two ventilation openings, and the ventilation effect of the plant is improved. A trapezoidal frame is arranged in the ventilation frame, a filter plate is arranged on the trapezoidal frame, a plurality of filter holes are formed in the filter plate, air can be filtered, external impurities are prevented from entering the plant, an adjusting motor drives an adjusting shaft to rotate, and a mounting disc is driven to rotate; the guide plate is driven by the movable rod to slide along the two guide columns, then the vertical plate is driven to horizontally move, meanwhile, the dredging rod horizontally moves to be inserted into the filter hole to dredge the interior of the filter hole, the filter hole is prevented from being blocked, the filtering effect is improved, and the filter has high popularization value.

The utility model discloses an emergency exhaust structure for a laboratory, which relates to the technical field of emergency exhaust structures and comprises a ventilation exhaust fan, a master controller is fixedly mounted at the top end of one side of the front surface of the ventilation exhaust fan, and a data display is fixedly mounted on one side of the front surface of the master controller. A control panel is arranged on one side of the front face of the master controller, and the bottom end of one side of the air exchange exhaust fan communicates with an exhaust pipe. Emergency exhaust operation is conducted on the interior of the laboratory through the multiple exhaust pipes distributed at the bottom end of the ventilation exhaust fan, starting of the air pump is remotely controlled and connected through the remote connector and the control device, and wind power is sucked into the ventilation exhaust fan and then directly transmitted into the exhaust pipes; harmful substances in air are absorbed and purified through the waste gas absorption box in the exhaust pipe, a certain chemical agent is added into the waste gas absorption box to achieve the waste gas absorption effect, and the main controller can manually control starting of the exhaust pipe.

An air conditioner and a control method thereof are provided. The air conditioner includes: a housing including a base; a first heat exchanger disposed inside the housing and configured to exchange heat with outdoor air; a second heat exchanger disposed inside the housing and configured to exchange heat with indoor air; a compressor configured to compress a refrigerant for a heat exchange operation performed by the first heat exchanger and the second heat exchanger; a first fan disposed inside the housing and configured to move air along a flow path passing through the first heat exchanger; a drainage device configured to move condensed water condensed on the second heat exchanger inside the housing and collected in the substrate to the first heat exchanger; and a controller comprising at least one processor comprising processing circuitry, the at least one processor being individually and / or collectively configured to: based on a stop of operation of the compressor, determine whether the operation of the compressor is stopped; the drainage device is controlled to move condensed water collected in the base to the first heat exchanger during a drainage time determined based on an operation time of the compressor, and the first fan is controlled to move air during the drainage time.

A warmer comprises a box body, a draught fan installation groove and a heating groove, a draught fan is arranged in the draught fan installation groove, and an air exchange opening is formed in the side wall of the draught fan installation groove; the box body is arranged above the fan mounting groove, and an air blowing opening corresponding to the fan is formed in the bottom surface of the box body; the heating groove is formed in the box body, intervals are formed between the heating groove and the side wall of the box body and between the heating groove and the bottom face of the box body, and a heating device is arranged in the heating groove; a panel covers the top of the box body, an air groove is downwards formed in the panel close to the edge, and an air opening is formed in the side wall of the air groove.

The utility model discloses an outdoor high-safety transformer, which relates to the technical field of transformers and comprises a transformer body, and a protection mechanism is arranged at the bottom of the transformer body. The transformer body comprises a protective shell, the top of the protective shell is fixedly connected with an accelerated ventilation mechanism, and the top of the accelerated ventilation mechanism is fixedly connected with a connecting pipe. Through the cooperation of the protective shell, the connecting pipe, the material storage box, the material changing port, the ventilation port, the temperature detector, the motor and the fan, when the temperature detector detects that the voltage transformation element works too hot, the motor is started, the fan is driven to rotate, external air enters the material storage box through the ventilation port, adsorption materials are stored in the material storage box, and the adsorption materials are stored in the material storage box. According to the transformer, impurities in external air are filtered out, moisture in the air is reduced, then the air enters the protective shell through the connecting pipe and the shell, circulation of the air in the protective shell is accelerated, aging of the transformer is delayed, the probability that the transformer breaks down due to overheating is reduced, and the transformer is higher in safety and longer in service life.

The utility model discloses an aluminium alloy window frame structure can carry out new trend filter, including the nested installation of outer frame, inner frame, glass in proper order, the upper and lower both sides of outer frame are provided with air outlet and air inlet channel respectively, and the air inlet channel is connected with the gusset plate of air outlet, and the gusset plate is provided with the connecting port, and the air inlet channel is provided with the air inlet in the end away from the connecting port, the connecting port is located in the room, and the air inlet is located in the room outside, and the aluminium alloy window frame is designed with the air outlet and air inlet, can be connected with the existing new trend system, is used as the air exchange channel of new trend system, need not additionally punch on the wall, also can pass through the extension pipeline independent connection suction fan, filters and purifies the air that enters the room through the air inlet, improves indoor air quality.

The invention relates to a method for operating a cooling system (1) for a motor vehicle (2) comprising at least one circuit (3) through which a refrigerant or coolant flows, with a first heat exchanger and a second heat exchanger connected to each other by a line (8), and an air duct system (10) with an external space (11) in which the first heat exchanger (4) is arranged, and an air duct element (12) through which an airflow (9) in the external space (11) can be adjusted, wherein the cooling system (1) can be operated in a first operating mode as a heat pump and in a second operating mode as an air conditioner, wherein, depending on at least one state value and on the operating mode, before and / or after the cooling system (1) is operated in the latter mode, an air exchange takes place in the external space (11) through the air duct element (12), so that icing of the first heat exchanger can be avoided predictively.Furthermore, the invention relates to a cooling system (1) and a motor vehicle (2).

The present application relates to two five-way valve field, especially to a kind of double-layer coaxial two five-way valve, including shell and turbo fan for supercharging, hollow spool is matched and installed in the shell, the shell one end is equipped with motor for driving spool reciprocating movement, the other end is equipped with the end head of intercommunication, the end head is opened with atmospheric air inlet and atmospheric air outlet, the shell is provided with with turbo fan inlet intercommunication's outlet air duct and with turbo fan outlet intercommunication's inlet channel, and the public end output channel capable of forming positive and negative pressure inside, the spool outside is formed by several fan-shaped ring baffles and longitudinal valve plate several air exchange air duct, the device only needs to utilize motor to drive spool reciprocating movement to make airflow move according to preset mode, and it is ingenious in design, and low in cost.

1. Name of the product in this design: Blower (3010C). 2. Intended use of this design: for ventilation, air exchange, and air transport, etc. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This application relates to an air control system, an aircraft air control method, an aircraft, and a flight system. The air control system includes an oxygen supply module, an air exchange module, a pressure regulation module, a detection module, and a control module. The oxygen supply module includes an oxygen reservoir, an oxygen electronically controlled valve, and an oxygen pipe. The air exchange module includes an airflow control component for regulating the airflow introduced from outside the cockpit to the indoor air outlet. The pressure regulation module is used to regulate the cabin pressure. The detection module includes an oxygen concentration detector and a cabin pressure detector. The control module is configured to control at least one of the oxygen electronically controlled valve, the pressure regulation module, and the airflow control component based on the oxygen concentration and cabin pressure. The air control system of this application can reduce the complexity of the system and, at the same time, can adaptively adjust in various scenarios, improving the accuracy and comfort of oxygen supply.

The utility model provides an ultralow-energy-consumption building external window airtight structure which comprises a structure base layer, an external window and an energy-saving auxiliary frame. The energy-saving auxiliary frame is pre-buried at the edge, connected with the outer window, of the structure base layer, and the energy-saving auxiliary frame transversely crosses the indoor side and the outdoor side of the outer window; the outer window is detachably connected to the energy-saving auxiliary frame; the waterproof vapor-proof film is laid on the joint face of the indoor side of the energy-saving auxiliary frame and the structural base layer. The waterproof vapor-permeable film is laid on the joint surface of the outdoor side of the energy-saving auxiliary frame and the structural base layer; the closing-up positions of the waterproof vapor-proof film and the waterproof vapor-permeable film are coated with silicone sealants. The air tightness of the outer window is guaranteed, indoor and outdoor cold and hot air exchange and cold and hot energy loss are reduced, and the energy-saving and emission-reducing effects of a building are achieved; the building sound insulation performance and the air quality are improved, the energy use efficiency is improved, meanwhile, water vapor is discharged outdoors in time, the energy-saving auxiliary frame of the outer window is protected against corrosion, the service life of the outer window and the building is prolonged, and an effective guarantee is provided for long-term use of the building.

The embodiment of the invention provides a bath heater and an air duct assembly, and relates to the technical field of household appliances. The bath heater comprises an air duct assembly, and the air duct assembly comprises an air duct shell, a fan, a first surrounding piece and a second surrounding piece. The fan is arranged in the air duct shell. A first flow channel and a second flow channel are arranged in the air channel shell. The first flow channel and the second flow channel are provided with a first swing blade and a second swing blade correspondingly, and the first swing blade and the second swing blade can rotate relative to the air channel shell so that the first air outlet and the second air outlet can be closed at the same time and the air inlet can communicate with the ventilation opening. Or the first air outlet and the second air outlet are both communicated with the air inlet and the air exchange port is isolated from the air inlet, or one of the first air outlet and the second air outlet is communicated with the air inlet and the other one is closed and the air inlet is communicated with the air exchange port. The single fan can achieve air outlet and air exchange of the bath heater at the same time, switching between an air exchange mode and an air outlet mode can be achieved, cost can be reduced, and the length of the whole machine can be reduced.

The invention relates to the technical field of indoor air exchange, in particular to an air exchange method and system, a storage medium and electronic equipment. According to the method, indoor and outdoor environment parameters and equipment states are continuously monitored, and independent or combined operation of air exchange, humidification and water collection is intelligently judged and carried out. When the indoor air quality is poor, the system can start an air exchange path, and filtered fresh air is directly introduced; when it is detected that the indoor space is dry and the reserved water source is sufficient, the system can utilize the reserved water to conduct precise humidification on the fresh air fed into the indoor space, and therefore the situation that in order to improve the humidity, excessive untreated fresh air is forced to be introduced, and consequently the energy consumption of an air conditioner is sharply increased is avoided. Under the refrigeration working condition of the air conditioner, humidity supply and air freshness are efficiently coordinated, and the dilemma problems that in a traditional method, humidity is out of control due to window opening and ventilation and air is dirty due to door and window closing are fundamentally solved.