2366results about "Air currents for screening" patented technology

The invention discloses an electronic nose device which comprises a shell, a detection assembly, an air curtain cover and a power assembly. The shell is provided with an air inlet channel and an air outlet channel surrounding the periphery of the air inlet channel. The detection assembly is arranged in the air inlet channel and is used for qualitatively and quantitatively detecting the components of the passing to-be-detected gas. The air curtain cover is installed on the shell, an air inlet of the air curtain cover communicates with the air inlet channel, and an air outlet surrounds the air inlet and communicates with the air outlet channel. The power assembly is divided into two parts, one part is located in the air outlet channel and used for sucking in external air, the external air is exhausted through an air outlet of the air curtain cover, and a hollow cylindrical or conical air curtain is formed. And the other part is positioned in the air inlet channel and is responsible for introducing the to-be-detected gas wrapped by the air curtain into the air inlet channel from the front of the air outlet of the air curtain cover. The electronic nose device can effectively improve the detection efficiency of the to-be-detected gas, ensures that the detection process is quicker and more accurate, and meets the practical requirements of adjustable orientation and more accurate positioning for gas detection in practical application.

According to the direct-expansion cryogenic pre-dehumidification and heat pump regeneration combined low-dew-point double-rotating-wheel dehumidification system, the control method and the terminal, accurate regulation and control of all devices in the rotating-wheel dehumidification system are achieved according to data collected by the sensor module in real time, and therefore the stability of the air supply dew-point temperature is ensured. By adopting the direct expansion cryogenic technology, the dehumidification burden of the rotating wheel is effectively relieved, and the regeneration temperature is reduced, so that the energy consumption in the regeneration process is remarkably reduced. The regeneration heat pump condenser is installed at the inlet of the rotating wheel, part of regeneration heat can be borne, and regeneration energy consumption is further reduced. A regeneration heat pump evaporator is further installed at an exhaust outlet of the rotating wheel, heat in regeneration exhaust can be recycled, and the purpose of saving energy is achieved. According to the rotating wheel dehumidification system, dual optimization of dehumidification performance and energy consumption performance is achieved, the dehumidification efficiency is remarkably improved, and the energy consumption of the system is reduced.

The invention relates to the technical field of drying equipment, in particular to a low-consumption constant-temperature dehumidification device and a control method, and achieves an efficient and energy-saving constant-temperature dehumidification effect. The heat recovery module recovers heat in the condensation and regeneration process, the collaborative optimization module coordinates operation of all the modules, the energy utilization efficiency is remarkably improved, and energy consumption is reduced. The control system module dynamically adjusts the state of each module according to the real-time data of the temperature and humidity sensor, ensures the stability of the environment temperature and humidity, and further improves the control precision by adopting a dynamic decoupling control strategy. The regeneration module utilizes recovered heat energy to efficiently regenerate adsorbents and cooperates with novel composite adsorbents, the service life of the adsorbents is prolonged, and the dehumidification performance is improved. The air circulation module forms uniform airflow, and local temperature and humidity unevenness is avoided. A user can set parameters through the interaction unit, the system is controlled to automatically adjust the operation strategy, intelligent operation is achieved, and the system performance is optimized.

The invention provides an industrial air conditioner and waste heat recovery collaborative intelligent optimization control method and related equipment, and is applied to the technical field of data processing. Industrial air conditioner and waste heat recovery system data are fused through the Internet of Things and edge calculation, a standardized parameter sequence is generated through wavelet noise reduction and is converted into an energy flow network atlas, high-energy-consumption working conditions are subdivided through fuzzy clustering, and a dynamic energy efficiency coupling model is constructed. And based on the model, constructing an optimization equation by using an improved particle swarm algorithm, and obtaining the energy consumption of the key node in combination with an energy gradient utilization matrix. And an energy-saving potential coefficient is generated through the multi-dimensional feature matrix, a production plan grouping operation mode is combined, a self-adaptive optimization control model is constructed by using deep reinforcement learning, and finally a real-time regulation and control instruction and an energy efficiency scheme are generated to realize system collaborative optimization.

The invention provides a constant-heating defrosting system of a heat recovery air conditioner and a defrosting control method and device. According to the system, a compressor, a first electromagnetic valve, a water tank, a first expansion valve, a first one-way valve, a second electromagnetic valve, an outdoor heat exchanger and a four-way valve are connected to form a first heating loop; a compressor, a first electromagnetic valve, a water tank, a first expansion valve, a first one-way valve, a third electromagnetic valve, an energy storage water tank, a fourth electromagnetic valve and a four-way valve are connected to form a first defrosting loop. A compressor, a fifth electromagnetic valve, a second one-way valve, an outdoor heat exchanger and a four-way valve are connected to form a second defrosting loop; and the first heating loop, the first defrosting loop and the second defrosting loop form a single heating water defrosting loop. The problem that in the prior art, in the defrosting process, the comfort experience of a user is affected due to the fact that an air conditioner does not conduct heating is solved.

The invention provides a multifunctional heating ventilation air conditioner waste heat utilization method and system, and the method comprises the following steps: 1, obtaining multi-source data of an air conditioner system and an external heat source, carrying out the preprocessing, carrying out the grading collection and preliminary integration of the multi-source waste heat, and dividing the multi-source waste heat into high-temperature waste heat, medium-temperature waste heat and low-temperature waste heat; multi-source data of an air conditioning system and an external heat source are collected, condensation heat of a compressor, industrial waste heat and other multiple types of waste heat are integrated and subjected to staged treatment, and a high-temperature power generation-medium-temperature heat supply-low-temperature heat storage gradient utilization system is constructed; an LSTM neural network thermal load prediction model and an intelligent algorithm are combined to dynamically adjust a waste heat distribution path so as to realize self-adaptive switching of a refrigeration mode, a heating mode and a hot water mode, and meanwhile, a cascade system, photovoltaic energy, geothermal energy and the like are coupled through a direct-current micro-grid to construct a hybrid energy supply system. The problems that in the prior art, waste heat sources are single, energy efficiency is low due to the fact that gradient utilization is lacked, dynamic regulation and control are insufficient, and cooperation with renewable energy sources is not achieved are sequentially solved.

The invention provides an elevator intelligent air curtain and a semiconductor refrigeration control method. The method comprises the steps that the historical temperature and airflow distribution data in an elevator are obtained; according to historical temperature and airflow distribution data, training a temperature and airflow distribution prediction model by adopting a long-short-term memory network; acquiring real-time temperature and airflow distribution data in the elevator, inputting the temperature and airflow distribution prediction model, and predicting future temperature and airflow distribution; according to the predicted temperature and airflow distribution, an optimization algorithm is adopted to calculate the opening angle of the air curtain and the refrigeration power parameter of the refrigeration cold piece, and the optimal control strategy of the air curtain and the refrigeration cold piece is obtained with the temperature control precision and the system energy consumption as optimization targets; and parameters in the optimal control strategy are input into a controller of the air curtain and the refrigerating fins, the air speed and the air direction of the air curtain and the refrigerating power of the refrigerating fins are adjusted, and optimal control over the temperature and airflow distribution in the elevator is achieved.

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.

A thermal system for providing thermal conditioning to a facility includes a facility air circuit for circulating a facility air throughout the facility and a downhole fluid circuit for circulating a downhole fluid. The facility air circuit is thermally connected to a heat pump for exchanging heat with the facility air. The downhole fluid circuit includes the heat pump for exchanging heat with the downhole fluid, a main loop, including a borehole heat exchanger (BHE) for exchanging heat between the downhole fluid and a geological formation, and an exhaust loop including an exhaust heat exchanger coupled to an exhaust of the facility air circuit, wherein the exhaust loop is configured to circulate at least some of the downhole fluid through the exhaust heat exchanger to exchange heat between the downhole fluid and an exhaust flow of the facility air exhausted from the facility at the exhaust.

Temperature control device (10) for temperature control of an interior (12) of a motor vehicle (14), comprising a ventilation device (16) which has an air duct (24) extending along an outer edge (18) of a door frame (20) for a door of the motor vehicle (14) and integrated into a vehicle body (22) of the motor vehicle (14), which is permeable to air (L) and which has at least one outlet opening (26) for forming an air curtain (28) at a door area (30) of the door, wherein a temperature difference between a first temperature (T1) in the interior (12) and a second temperature (T2) in an environment (34) of the motor vehicle (14) can be detected by means of an arranged detection device (32) and the formation of the air curtain (28) can be controlled by means of the ventilation device (16) depending on the result of the temperature difference, characterized in thatthat the air duct (24) is provided by a sealing rubber (42) with at least one outlet opening (26).

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.

A system for the climate-control of interior spaces of a building includes an exhaust air channel for guiding exhaust air out of at least one interior space, and a heat recovery device designed to obtain thermal energy from the exhaust air. One or more interior spaces have a circulating air module with fresh air intake connected to a fluid circuit of a climate-control device. The circulating air module includes a housing with a fresh air inlet for fresh air to flow into the housing, and inside air inlet and outlet openings; a heat exchanger; an inside air fan for conveying through the exchanger inside air flowing in through the inside air inlet opening as circulating air. Fresh air is supplied to the circulating air in the housing and the circulating air flows out the inside air outlet opening as supply air along with the added fresh air.

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 construction, in particular to an ultra-low energy consumption building structure based on light materials and an intelligent construction method.The ultra-low energy consumption building structure based on the light materials comprises an outer wall and a window, the outer wall is composed of a structural layer, a heat insulation layer, a waterproof layer, a heat preservation layer, a decoration layer and a plate buckle structure and used for heat preservation, heat insulation and control of indoor and outdoor heat exchange, and the window is composed of a window frame, glass and sealing strips. The fresh air heat recovery system is used for optimizing a heat transfer path, reducing heating, refrigeration and ventilation energy consumption of a building, preventing moisture from invading a room and avoiding wall mildew and structural damage, and the fresh air heat recovery system is composed of a heat exchange system, a power system, a filtering system, a box body and a control system and is used for ventilation, air exchange, air purification and indoor environment adjustment, so that the energy consumption of an air conditioning system is reduced, and the energy consumption of the air conditioning system is reduced. The energy-saving technology of light materials is adopted, energy consumption and carbon emission are reduced, the intelligent construction scheme is adopted, the construction period is shortened, and the construction cost is reduced.

The utility model relates to the technical field of dehumidification, in particular to a dehumidification system. Comprising a treatment fan, a surface air cooler, a dehumidification rotating wheel and a heat treatment device, the processing fan is used for conveying to-be-dehumidified air according to a main flowing direction to form to-be-dehumidified airflow; the surface air cooler is used for condensing and dehumidifying the air flow to be dehumidified and dividing the condensed and dehumidified air flow into rotating wheel regeneration air and rotating wheel treatment air; the dehumidification rotating wheel comprises a treatment area and a desorption area, and the treatment area is used for carrying out dehumidification treatment on rotating wheel treatment air; the desorption area is used for achieving dehumidification desorption and heat recovery of the dehumidification rotating wheel by conducting multiple times of heat exchange with rotating wheel regeneration air. The heat treatment device is used for preheating rotating wheel regeneration air by using the recycled heat; meanwhile, the rotating wheel regeneration air is subjected to secondary heating, and high-temperature rotating wheel regeneration air capable of desorbing the dehumidification rotating wheel is generated; the heat treatment device is combined with the dehumidification rotating wheel, regeneration exhaust air waste heat and rotating wheel surface waste heat are fully utilized, and therefore the purpose of saving energy is achieved.

The present application provides an air conditioner control method and apparatus, a multi-split air conditioner, and a storage medium. According to the present application, when the multi-split air conditioner has a refrigeration requirement and a water heating requirement at the same time, mode determination is performed on the basis of a water tank temperature and a heating energy requirement of a heating water tank, and a total energy requirement of all air conditioner indoor units that are acquired, so as to determine a target heat recovery mode of the multi-split air conditioner, and then communication states between reversing apparatuses and throttling elements are adjusted on the basis of the target heat recovery mode.

A ventilation system including a ventilator; and an outdoor unit, wherein the ventilator includes a housing including a first intake, a second intake, a first outlet and a second outlet, a plurality of dampers to change flow paths of air flowing through the housing, first and second air blowers, a heat exchanger in the housing, and a processor to control the dampers and first and second air blowers to form a first flow path in which outside air flows through the heat exchanger, or form a second flow path in which room air flows through the heat exchanger, to thereby form a flow path in the ventilator, while air flows through the flow path, control the outdoor unit to form frost on the heat exchanger, and control the outdoor unit to stop operating based on a preset frosting termination condition so that the frost melts to clean the heat exchanger.

The present application relates to the technical field of air conditioners, and particularly relates to an air conditioner control method and device, a multi-connected air conditioner and a storage medium, the present application determines the target heat recovery mode of the multi-connected air conditioner by judging the water tank temperature of the hot water tank, the heating energy demand and the total energy demand of each air conditioner indoor unit obtained when the multi-connected air conditioner simultaneously exists refrigeration and heating water demand, and then adjusts the communication state of the reversing device and the throttling element according to the target heat recovery mode, so as to achieve the purpose of simultaneously operating refrigeration and heating water by one heat pump system, and heat the water tank by the waste heat of air conditioner refrigeration, thereby avoiding the technical problem that the heating and heating water in the prior art multi-connected air conditioner are not simultaneously performed, and improving the use experience of the user.

The invention relates to the technical field of prefabricated cabins, in particular to an integrated prefabricated box for factories, which comprises a base, vertical columns are arranged at four corners of the top of the base respectively, vertical plates are arranged among the horizontal vertical columns, side plates are arranged between the front and rear vertical columns, a top plate is arranged at the tops of the vertical plates and the side plates, and the base comprises a bottom plate and a floor. The center of the top of the bottom plate is concave, a ring beam is arranged on the inner circumference of the concave position, and longitudinal sleepers are arranged on the front side and the rear side of the inner circumference of the ring beam. An exhaust fan, a ventilation pipe and ventilation holes are arranged; in order to keep the temperature of the bottom in the prefabricated cabin constant, the temperature regulator regulates the air exhaust amount of the exhaust fan to form negative pressure in the base, hot air at the top in the prefabricated cabin enters the upper side of the suspended ceiling through the vent holes and circulates into the base through the vent pipe, waste heat is transferred to the floor, and the waste heat is dissipated into the prefabricated cabin from bottom to top through the floor. The waste heat is utilized, and the living comfort in the prefabricated cabin is improved.

The invention provides a control method of an air conditioner heat recovery system, the air conditioner heat recovery system and a computer readable storage medium. The method comprises the steps that the water temperature of a water heater and the indoor environment temperature at the current moment are obtained; according to the water temperature of the water heater and the indoor environment temperature, the operation mode of the air conditioner heat recovery system is determined, and the first operation mode is a mode that the air conditioner is in a refrigeration mode and does not heat the water heater; the second operation mode is a mode in which the air conditioner is in a refrigeration mode and heat released by a refrigerant of the air conditioner is completely used for heating the water heater, and the third operation mode is a mode in which the air conditioner is in the refrigeration mode and part of heat released by the refrigerant of the air conditioner is used for heating the water heater; and controlling the air conditioner heat recovery system to operate in the operation mode. According to the method, through switching of multiple operation modes of the system, condensation heat can be recovered to reserve domestic hot water in advance while intelligent regulation and control of the indoor temperature are achieved, and effective utilization of heat energy of the whole house is achieved.

According to the refrigeration type extractor hood and the control method thereof, an oil smoke suction module of the refrigeration type extractor hood comprises an oil smoke suction fan, a heat dissipation module comprises a condenser and a heat dissipation fan, an inner unit module comprises an evaporator, an air outlet fan and a water receiving box, condensate water on the surface of the evaporator flows into the water receiving box, and a ventilation opening is formed in the volute annular wall of the oil smoke suction fan; an air outlet of the cooling fan is in fluid communication with the ventilation opening, a first water outlet pipe is connected to the water receiving box, and the water outlet end of the first water outlet pipe extends into the volute of the oil smoke suction fan. In the working process, condensate water flowing into the water receiving box enters the volute of the oil smoke suction fan through the first water outlet pipe, the volute impeller is cleaned through the high-temperature condensate water, the volute impeller is blown and washed through high-temperature air blown out of the air outlet of the cooling fan, and the oil accumulation rate of the volute impeller is reduced. According to the control method of the range hood, the working states of the water pump, the heater, the oil smoke suction fan, the cooling fan and other assemblies are correspondingly controlled according to the received signals of the temperature sensor, and then the cleaning effect and the intelligent degree of the fans are improved.

The invention relates to the technical field of dehumidifiers, in particular to an energy-saving heat exchanger and an efficient rotary dehumidifier. The shell is provided with an air blowing mechanism; the air blowing mechanism comprises a driving seat, a motor, a first linkage assembly and a fan seat; the driving seat is arranged at the top of the shell; the motor is provided with a transmission shaft; the transmission shaft is connected with the fan base through a first linkage assembly. A plurality of fixed fan blades are rotationally arranged on the fan base; the fixed fan blades are telescopically and movably provided with movable fan blades; the device further comprises a second linkage assembly. The transmission shaft drives the fixed fan blades to rotate and drives the movable fan blades to stretch and retract through the second linkage assembly. The motor drives the fan base to rotate through the transmission shaft and the first linkage assembly, and air flow is generated through the fixed fan blades and the movable fan blades; besides, the motor can change the air volume of the energy-saving heat exchanger by changing the total fan blade area of the movable fan blades and the fixed fan blades and the overturning angles of the movable fan blades and the fixed fan blades through the transmission shaft and the first linkage assembly.

A ventilation system with automatic flow balancing derived from a neural network to consistently achieve a desired flow rate for inlet flow and / or outlet flow in various operating environments to optimize system performance. The system includes a ventilation device that includes an exhaust blower assembly with a blower motor and a control circuit having a mathematical equation that determines an estimated exhaust blower flow based upon select inputs. The ventilation device also includes a supply blower assembly with a blower motor and control circuit having a mathematical equation that determines an estimated supply blower flow based upon select inputs. When the estimated exhaust blower flow is different than an exhaust flow set point, the exhaust control circuit selectively alters power supplied to the exhaust motor. When the estimated supply blower flow is different than a supply flow set point, the supply control circuit selectively alters power supplied to the supply motor.

A decentralized supply and extract unit, with waste heat recovery, is claimed, said supply and extract unit being designed to be mounted into the external wall of a building, and having an indoor module (10) located on the inside of the wall of the building and having, adjoined to said indoor module, a heat-exchange module (20), comprising a cylindrical corrugated heat exchanger (4) with a plurality of heat-exchange air ducts (5) located along the axis of symmetry (2) of said heat exchanger, said air ducts being cross-sectionally similar and adjoining each other, forming a continuous corrugated volume of heat-exchange segments, a first separator and a second separator (6, 7) for separating and directing extraction and supply air flows (12, 13) in opposite directions in the heat-exchange air ducts (5), wherein the first separator and the second separator (6, 7) adjoin the heat exchanger (4), at both end surfaces thereof, and are installed on the axis of symmetry (2) of said heat exchanger. In addition, the unit comprises a first fan and a second fan (8, 9), housings (16, 17) which adjoin the first separator and the second separator (6, 7), at the ends of the separators facing away from the heat exchanger (4), wherein the axis (11) of one of the fans (6, 7) is located parallel with the axis of the other fan (6, 7) and is not aligned with said axis.

The invention provides heat exchange equipment and a control method based on the heat exchange equipment, the heat exchange equipment comprises a shell, the shell is provided with a first end and a second end which deviate from each other, the first end faces a first space and is provided with a fresh air port and an exhaust port, and the second end faces a second space and is provided with an air supply port and an air return port; the detection device is configured to obtain the air inlet temperature of the fresh air opening; the control device is configured to calculate the dew point temperature of the second space in the state that the air inlet temperature is higher than the preset temperature; the detection device is further configured to obtain the air supply temperature of the air supply outlet, and the control device is further configured to compare the air supply temperature with the dew point temperature.

The invention provides an automobile mosquito protection system and method based on a negative pressure airflow barrier, and the system comprises an airflow generation module which comprises at least one fan arranged at an automobile door frame and is used for generating airflow flowing from the interior of a passenger compartment to the exterior of an automobile; and the air guide structure communicates with the airflow generation module and is used for forming a negative pressure airflow barrier covering the vehicle door opening at the vehicle door opening. An airflow barrier is established at the moment of opening of the vehicle door, mosquitoes are prevented from entering from the source, and passive is changed into active; a pure physical airflow expelling mode is adopted, no chemical substance or high-voltage electric shock risk exists, the air quality in a vehicle is preferentially monitored, and the health of passengers is guaranteed; intelligent control is carried out based on double signals of the vehicle door opening degree and biological recognition, and the protection effect, energy consumption and noise are effectively balanced; core components of the system are designed in a hidden integrated mode, and the appearance and getting-on and getting-off convenience of the vehicle are not affected.

The invention relates to the technical field of air conditioner waste heat recovery, and particularly discloses a heating ventilation air conditioner waste heat recovery device which comprises a box body, a water guide unit, a ventilation unit and a heat exchange unit, the water guide unit, the ventilation unit and the heat exchange unit are arranged in the box body, the heat exchange unit comprises a plurality of heat exchange cylinders arranged in the box body, each heat exchange cylinder is provided with a first valve and a second valve, and an air bag is arranged in each heat exchange cylinder. The air bag is connected with a driving assembly for expanding or shrinking the air bag; the water guide unit comprises a spiral coil arranged in the heat exchange cylinder, the ventilation unit is used for sequentially introducing gas into the heat exchange cylinder, when gas is introduced, the first valve and the second valve are opened, when ventilation is stopped, the first valve and the second valve are closed, and the driving assembly drives the air bag to expand and contract repeatedly. According to the waste heat recovery device for the heating ventilation air conditioner, high-temperature gas can be gathered towards the spiral coil area, the heat exchange efficiency is improved, meanwhile, the high-temperature gas can flow through expansion and contraction of the air bag, and gas waste heat is fully recycled while the heat exchange efficiency is improved.

An energy-saving and environmentally-friendly intelligent thermal insulation air chamber for a cold-region tunnel, and an arrangement method therefor, which air chamber and arrangement method belong to the technical field of tunnel engineering. The thermal insulation air chamber comprises an air curtain assembly (10) which is used for generating a thermal buffer zone to prevent external low-temperature airflows from entering a tunnel, a temperature regulation assembly (20) which is used for regulating the temperature in the thermal insulation air chamber, a sensor assembly (30) which is used for controlling the air curtain assembly (10) and the temperature regulation assembly (20) in real time on the basis of environment data, a controller assembly (40), and a power source assembly.

Disclosed in the present invention is a heat recovery ventilator, comprising a frame, a housing, a heat exchange rotor, a central shaft, a plurality of shaft seals, an outer rotor motor, and a motor support; the housing is mounted on the frame, the heat exchange rotor is rotatably mounted in the housing, the heat exchange rotor is fixed to an outer rotor motor housing by means of an inner fixing support, two ends of the central shaft are fixedly mounted on the frame, and the plurality of shaft seals are connected between the housing and the heat exchange rotor. The outer rotor motor is mounted in the middle of the inner cavity of the heat exchange rotor by means of the motor support, and a shaft of the outer rotor motor is fixedly connected to the central shaft. In the present invention, since the outer rotor motor provides rotating power for the heat exchange rotor, the structure is simple, and since an outer cylinder and an inner cylinder in the heat exchange rotor are conical cylinders, when the heat exchange rotor rotates, the centrifugal forces acting on dewdrops attached to the inner cylinder and the outer cylinder are different, the dewdrops concentrate in the axial direction under the action of the centrifugal forces and are transferred to a cold air passage at the shaft seals for evaporation, the flow velocity of the dewdrops is higher, and the heat exchange effect is better.

The invention relates to an energy-saving fresh air system suitable for a high-temperature and high-humidity area and a control method. The energy-saving fresh air system comprises a filter, a heat exchanger, a surface air cooler and a fan which are sequentially arranged on an air pipe. Outdoor fresh air enters the heat exchanger through the filter, the heat exchanger precools the filtered fresh air with dehumidification cold air from the surface air cooler as a cold source, and the precooled fresh air is subjected to deep cooling dehumidification through the surface air cooler, reheated through the heat exchanger and finally fed into a room through the draught fan. A branch pipe is arranged between the filter and the heat exchanger, filtered fresh air is led out of the branch pipe to be fed into the surface air cooler, and the amount of the fresh air fed into the surface air cooler is controlled through a bypass air valve. And the other part of fresh air controls the fresh air volume fed into the heat exchanger through the pre-cooling air valve, the circulation path and the heat exchange proportion of the fresh air are controlled through linkage of the bypass air valve and the pre-cooling air valve, and air supply temperature adjustment is achieved. And the fresh air is pre-cooled by using the cold air after deep dehumidification, and meanwhile, the dehumidified low-temperature cold air is reheated, so that the energy consumption is reduced.