CN117091219A - Fresh air handling unit with heat recovery function - Google Patents

Fresh air handling unit with heat recovery function Download PDF

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Publication number
CN117091219A
CN117091219A CN202311254102.1A CN202311254102A CN117091219A CN 117091219 A CN117091219 A CN 117091219A CN 202311254102 A CN202311254102 A CN 202311254102A CN 117091219 A CN117091219 A CN 117091219A
Authority
CN
China
Prior art keywords
air
duct
fresh air
exhaust
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311254102.1A
Other languages
Chinese (zh)
Inventor
李�昊
刘子齐
范忠俊
乔萃杰
贾子亭
张一帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Jinmao Human Settlements Technology Co ltd
Original Assignee
Beijing Jinmao Human Settlements Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Jinmao Human Settlements Technology Co ltd filed Critical Beijing Jinmao Human Settlements Technology Co ltd
Priority to CN202311254102.1A priority Critical patent/CN117091219A/en
Publication of CN117091219A publication Critical patent/CN117091219A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Abstract

The invention discloses a fresh air handling unit with a heat recovery function, which utilizes a first heat exchanger, a compressor and a second heat exchanger to form a heat recovery module for recovering heat of indoor return air so as to preheat/cool fresh air, and an outdoor unit further heats/cools the fresh air through a condenser/evaporator, so that the load of a rear outdoor unit is reduced, the system operation efficiency is high, a boiler and a water pipe network are not required to be additionally arranged, and the power distribution installed capacity of the outdoor unit can be reduced.

Description

Fresh air handling unit with heat recovery function
Technical Field
The invention relates to the technical field of fresh air units, in particular to a fresh air unit with a heat recovery function.
Background
A fresh air handling unit in the prior art heats or cools fresh air by arranging a heat exchanger, and cold water or hot water is introduced into the heat exchanger. This requires the configuration of a heating boiler in addition to the refrigerator, and the laying of a pipeline, and is complicated in system and high in cost.
Another fresh air unit in the prior art is provided with an air source heat pump, and performs heat exchange through freon to control the refrigeration or heating of fresh air. Due to the principle of the air source heat pump, the unit has low winter operation efficiency, and the installed capacity and the power distribution amount are often required to be very large in order to ensure the fresh air heating effect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a fresh air unit with a heat recovery function, which utilizes a first heat exchanger, a compressor and a second heat exchanger to form a heat recovery unit for recovering heat of indoor return air so as to preheat/cool fresh air, reduce the load of a rear outdoor unit, realize high system operation efficiency, avoid additional configuration of a boiler and a water pipe network, and reduce the power distribution installed capacity of the outdoor unit.
The invention provides a fresh air handling unit with a heat recovery function, which comprises a shell, a first heat exchanger, a second heat exchanger, an evaporator, a condenser, a compressor, an air supply fan, an air exhaust fan and an outdoor unit, wherein the shell is arranged on the shell;
the shell is internally provided with an air supply channel and an air exhaust channel which are arranged at intervals;
one end of the shell is provided with a fresh air inlet communicated with the air supply duct and an indoor air return port communicated with the air exhaust duct, and the other end of the shell is provided with an indoor air supply port communicated with the air supply duct and an outdoor air outlet communicated with the air exhaust duct;
the first heat exchanger, the evaporator, the condenser and the air supply fan are sequentially arranged in the air supply duct at intervals, and the second heat exchanger, the compressor and the air exhaust fan are sequentially arranged in the air exhaust duct;
the evaporator and the condenser are respectively connected with the outdoor unit through a first medium flow pipeline;
the first heat exchanger, the compressor and the second heat exchanger are sequentially connected through a second medium flow pipeline.
In one optional technical scheme, a plurality of first heat exchangers are arranged in the air supply duct at intervals, and the plurality of first heat exchangers are arranged in parallel.
In one optional technical scheme, a temperature sensor is arranged in the air supply duct, and the temperature sensor is in signal connection with a control unit of the fresh air unit.
In one optional technical scheme, a primary filter is arranged in the air supply duct, and the primary filter is positioned between the fresh air inlet and the first heat exchanger.
In one optional technical scheme, the air supply duct is provided with a humidifying module, and the humidifying module is located between the condenser and the air supply fan.
In one optional technical scheme, a humidity sensor is arranged in the air supply duct, and the humidity sensor is in signal connection with a control unit of the fresh air unit.
In one optional technical scheme, a return air filter is arranged in the exhaust air duct, and the return air filter is positioned between the indoor return air inlet and the second heat exchanger.
In one alternative, the return air filter is an ion waterfall filter.
In one optional technical scheme, the air supply duct and the air exhaust duct are arranged at intervals up and down.
In one optional technical scheme, the shell comprises a first shell, a second shell and a third shell which are sequentially arranged;
the air supply duct comprises a first air supply section arranged in the first shell, a second air supply section arranged in the second shell and a third air supply section arranged in the third shell;
the air exhaust duct comprises a first air exhaust section arranged in the first shell, a second air exhaust section arranged in the second shell and a third air exhaust section arranged in the third shell;
the primary filter of the fresh air unit is arranged in the first air supply section, the first heat exchanger, the evaporator, the condenser and the humidifying module of the fresh air unit are arranged in the second air supply section, and the air supply fan is arranged in the third air supply section;
the return air filter of the fresh air unit is arranged in the first exhaust section, the second heat exchanger and the compressor are arranged in the second exhaust section, and the exhaust fan is arranged in the third exhaust section.
By adopting the technical scheme, the method has the following beneficial effects:
the fresh air handling unit with the heat recovery function provided by the invention utilizes the first heat exchanger, the compressor and the second heat exchanger to form the heat recovery module, and is used for recovering heat of indoor return air so as to preheat/cool fresh air, and the outdoor unit further heats/cools the fresh air through the condenser/the evaporator, so that the load of the rear-mounted outdoor unit is reduced, the system operation efficiency is high, a boiler and a water pipe network are not required to be additionally arranged, and the power distribution installed capacity of the outdoor unit can be reduced.
Drawings
The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. In the figure:
fig. 1 is a schematic structural diagram of a fresh air handling unit according to an embodiment of the present invention.
Detailed Description
Specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in fig. 1, a fresh air handling unit with a heat recovery function according to an embodiment of the present invention includes a casing 1, a first heat exchanger 2, a second heat exchanger 3, an evaporator 4, a condenser 5, a compressor 6, an air supply fan 7, an air exhaust fan 8, and an outdoor unit 9.
The housing 1 has an air supply duct 14 and an air exhaust duct 15 arranged at intervals.
One end of the shell 1 is provided with a fresh air inlet 16 communicated with the air supply duct 14 and an indoor air return 18 communicated with the air exhaust duct 15, and the other end of the shell 1 is provided with an indoor air supply opening 17 communicated with the air supply duct 14 and an outdoor air outlet 19 communicated with the air exhaust duct 15.
The first heat exchanger 2, the evaporator 4, the condenser 5 and the air supply fan 7 are sequentially arranged in the air supply air duct 14 at intervals, and the second heat exchanger 3, the compressor 6 and the air exhaust fan 8 are sequentially arranged in the air exhaust air duct 15.
The evaporator 4 and the condenser 5 are connected to the outdoor unit 9 through first medium flow pipes 40, respectively.
The first heat exchanger 2, the compressor 6 and the second heat exchanger 3 are sequentially connected through a second medium flow pipeline 50.
The fresh air unit provided by the invention has the heat recovery function so as to cool or heat fresh air in advance, thereby reducing the load of the rear outdoor unit 9 and improving the operation efficiency of the system.
Specifically, the fresh air handling unit comprises a shell 1, a first heat exchanger 2, a second heat exchanger 3, an evaporator 4, a condenser 5, a compressor 6, an air supply fan 7, an air exhaust fan 8 and an outdoor unit 9.
An air supply duct 14 and an air exhaust duct 15 are arranged in the shell 1. The air supply duct 14 and the air exhaust duct 15 are arranged at intervals, the air inlet end of the air supply duct 14 is provided with a fresh air inlet 16, and the air outlet end of the air supply duct 14 is provided with an indoor air supply opening 17. The fresh air inlet 16 is used for introducing outdoor fresh air into the air supply duct 14, and the indoor air supply opening 17 is used for introducing the fresh air into a room. The air inlet end of the air exhaust duct 15 is provided with an indoor air return opening 18, the air outlet end of the air exhaust duct 15 is provided with an outdoor air outlet 19, the indoor air return opening 18 is used for enabling indoor air to enter the air exhaust duct 15, and the outdoor air outlet 19 is used for exhausting return air outdoors.
The outdoor unit 9 is disposed outside the casing 1, and the outdoor unit 9 may be an air conditioner outdoor unit, and the outdoor unit 9 has an outdoor heat exchanger therein to exchange heat with ambient air. The outdoor unit 9 can perform cooling or heating as needed.
The front and rear in the present invention are defined along the direction of the wind flow.
The first heat exchanger 2 may be a surface cooler, which is provided in the air supply duct 14, at a middle front section of the air supply duct 14.
The evaporator 4 is provided in the air supply duct 14 at the rear side or downstream side of the first heat exchanger 2, and serves to cool down the air during operation. The evaporator 4 is connected to the outdoor unit 9 through a first medium flow pipe 40, and the first medium is freon. When the outdoor unit 9 is refrigerating, the first medium flows among the evaporator 4, the outdoor unit 9, the expansion valve and the outdoor unit compressor, and the evaporator 4 absorbs heat and is used for cooling and dehumidifying fresh air in the air supply duct 14.
The condenser 5, which serves as a heating function in operation, is provided in the supply air duct 14 at the rear side or downstream side of the evaporator 4. The condenser 5 is connected to the outdoor unit 9 through a first medium flow pipe 40. When the outdoor unit 9 heats, the first medium flows between the condenser 5, the outdoor unit 9, the expansion valve, and the outdoor unit compressor, and the condenser 5 releases heat to heat the fresh air in the air supply duct 14.
The air blower 7 is provided in an air supply duct 14 at the rear side or downstream side of the condenser 5, specifically, the air blower 7 is disposed near an indoor air supply port 17 for supplying fresh air cooled, dehumidified, heated and warmed into the room.
The second heat exchanger 3 may alternatively be a surface cooler, which is arranged in the exhaust air duct 15, approximately in the first half of the exhaust air duct 15. The second heat exchanger 3 is used for exchanging heat with the return air and recovering heat of the return air.
The compressor 6 is arranged in the exhaust air duct 15, which is at the rear or downstream side of the second heat exchanger 3. The compressor 6 powers a second medium, which may be water or freon, preferably freon.
The first heat exchanger 2, the compressor 6 and the second heat exchanger 3 are connected in sequence through a second medium flow conduit 50 to form a second medium circuit. The first heat exchanger 2, the compressor 6 and the second heat exchanger 3 constitute a heat recovery module.
The exhaust fan 8 is provided in an exhaust duct 15 at a rear or downstream side of the compressor 6, specifically, the exhaust fan 8 is disposed near an outdoor air outlet 19 for exhausting return air out of the room.
The air supply fan 7, the air exhaust fan 8 and the outdoor unit 9 can be automatically controlled by the control unit of the fresh air unit. The first medium flow pipe 40 connecting the evaporator 4 and the outdoor unit 9 and the first medium flow pipe 40 connecting the condenser 5 and the outdoor unit 9 are provided with automatic control valves which are connected with a control unit in a signal and automatically controlled and switched by the control unit.
In summer, the indoor return air temperature is lower than outdoor fresh air, the heat of the return air is recovered through the second heat exchanger 3, and then the fresh air is cooled in advance through the first heat exchanger 2. The outdoor unit 9 refrigerates again to cool the fresh air further by the evaporator 4.
In winter, the indoor return air temperature is higher than outdoor fresh air, the heat of the return air is recovered through the second heat exchanger 3, and then the fresh air is preheated through the first heat exchanger 2. The outdoor unit 9 refrigerates again to heat the fresh air further by the condenser 5.
Filters may be provided in the supply air duct 14 and the exhaust air duct 15 as needed.
If necessary, a heating module can be arranged at the rear of the evaporator 4, and if the wind temperature is too low, the heating module is started to heat. The heating module may be a resistance wire heating module.
The evaporator 4 and the condenser 5 may be connected to two outdoor units 9, respectively, the outdoor units 9 connected to the evaporator 4 may be specially cooled, the outdoor units 9 connected to the condenser 5 may be specially heated, and the fresh air flowing through the evaporator 4 may be heated by selectively opening the condenser 5 if the temperature is too low.
In summary, the fresh air handling unit with the heat recovery function provided by the invention utilizes the first heat exchanger 2, the compressor 6 and the second heat exchanger 3 to form the heat recovery module for recovering heat of indoor return air so as to preheat/cool fresh air, and the outdoor unit 9 further heats/cools the fresh air through the condenser 5/the evaporator 4, so that load of the rear outdoor unit 9 is reduced, system operation efficiency is high, no additional boiler and water pipe network are required, and power distribution installed capacity of the outdoor unit 9 can be reduced.
In one embodiment, as shown in fig. 1, a plurality of first heat exchangers 2 are provided in the air supply duct 14 at intervals, and the plurality of first heat exchangers 2 are arranged in parallel.
In this embodiment, a plurality of first heat exchangers 2 arranged in parallel are disposed in the air supply duct 14 to improve the effect of cooling, dehumidifying, heating and warming fresh air in advance.
In one embodiment, a plurality of second heat exchangers 3 are arranged in parallel in the exhaust air duct 15, so as to improve the heat exchange effect with the return air and improve the capability of recovering the heat of the return air.
In one embodiment, as shown in fig. 1, a temperature sensor is disposed in the air supply duct 14, and the temperature sensor is in signal connection with a control unit of the fresh air handling unit.
In this embodiment, the temperature sensor is used to monitor the fresh air temperature, and may be disposed at a plurality of positions in the air supply duct 14. The temperature sensor is in signal connection with a control unit of the fresh air handling unit. When the fresh air is cooled and dehumidified, if the temperature of the fresh air at the downstream of the evaporator 4 is monitored to be too low, a signal is sent to the control unit, and then the fresh air is heated to a proper temperature by the heating module or the condenser 5.
In one embodiment, as shown in fig. 1, a primary filter 10 is disposed in the air supply duct 14, the primary filter 10 is located between the fresh air inlet 16 and the first heat exchanger 2, and the primary filter 10 filters fresh air at the air inlet end of the air supply duct 14 to avoid dust entering and affecting the performances of the first heat exchanger 2, the evaporator 4 and the condenser 5.
In one embodiment, as shown in fig. 1, the supply air duct 14 is provided with a humidification module 20, and the humidification module 20 is located between the condenser 5 and the supply air fan 7.
The humidification module 20 selects an existing humidifier. When the fresh air is heated, if the temperature of the fresh air is high, the humidity is low, and the fresh air needs to be humidified by the humidifying module 20.
In one embodiment, as shown in fig. 1, a humidity sensor is disposed in the air supply duct 14, and the humidity sensor is in signal connection with a control unit of the fresh air handling unit.
In this embodiment, the humidity sensor is used for monitoring the humidity of the fresh air, and the humidity sensor is disposed at the rear or downstream side of the humidification module 20. The humidity sensor is in signal connection with a control unit of the fresh air handling unit. When the fresh air is heated, if the humidity of the fresh air at the downstream of the humidifying module 20 is monitored to be too low, a signal is sent to the control unit, and then the humidifying module 20 humidifies the fresh air to be at a proper humidity.
In one embodiment, as shown in fig. 1, a return air filter 30 is disposed in the exhaust air duct 15, the return air filter 30 is located between the indoor return air port 18 and the second heat exchanger 3, and the return air filter 30 filters return air at the air inlet end of the exhaust air duct 15, so as to prevent dust from entering and affecting the performance of the second heat exchanger 3.
In one embodiment, the return air filter 30 is an ion waterfall filter, which provides good filtration.
In one embodiment, as shown in fig. 1, the air supply duct 14 and the air exhaust duct 15 are arranged at intervals up and down, so that the transverse size of the fresh air handling unit is reduced, the occupied transverse space is reduced, and the arrangement requirement of a high-rise roof is met.
In one embodiment, as shown in fig. 1, the housing 1 includes a first housing 11, a second housing 12, and a third housing 13, which are arranged in this order.
The air supply duct 14 includes a first air supply section 141 provided in the first housing 11, a second air supply section 142 provided in the second housing 12, and a third air supply section 143 provided in the third housing 13.
The exhaust duct 15 includes a first exhaust section 151 provided in the first housing 11, a second exhaust section 152 provided in the second housing 12, and a third exhaust section 153 provided in the third housing 13.
The primary filter 10 of the fresh air handling unit is provided in the first air blowing section 141, the first heat exchanger 2, the evaporator 4, the condenser 5, and the humidification module 20 of the fresh air handling unit are provided in the second air blowing section 142, and the air blowing fan 7 is provided in the third air blowing section 143.
The return air filter 30 of the fresh air handling unit is arranged in the first air exhaust section 151, the second heat exchanger 3 and the compressor 6 are arranged in the second air exhaust section 152, and the air exhaust fan 8 is arranged in the third air exhaust section 153.
In this embodiment, the housing 1 is divided into a first housing 11, a second housing 12 and a third housing 13, and the first housing 11, the second housing 12 and the third housing 13 are sequentially arranged and connected, so that on-site assembly is facilitated.
The air supply duct 14 is divided into a first air supply section 141, a second air supply section 142, and a third air supply section 143, respectively. The first air blowing section 141 is provided in the first casing 11, the second air blowing section 142 is provided in the second casing 12, and the third air blowing section 143 is provided in the third casing 13. The first air supply section 141, the second air supply section 142, and the third air supply section 143 are connected in sequence.
The exhaust duct 15 includes a first exhaust section 151, a second exhaust section 152, and a third exhaust section 153. The first exhaust section 151 is provided in the first housing 11, the second exhaust section 152 is provided in the second housing 12, and the third exhaust section 153 is provided in the third housing 13. The first exhaust section 151, the second exhaust section 152 and the third exhaust section 153 are connected in sequence.
The fresh air handling unit comprises a first heat exchanger 2, a second heat exchanger 3, an evaporator 4, a condenser 5, a compressor 6, an air supply fan 7, an air exhaust fan 8, an outdoor unit 9, a primary filter 10, a humidifying module 20 and a return air filter 30.
The primary filter 10 is provided in the first air supply section 141, and the return air filter 30 is provided in the first air discharge section 151. Thus, the primary filter 10 and the return air filter 30 may be preloaded in the first housing 11 to form a first module.
The first heat exchanger 2, the evaporator 4, the condenser 5 and the humidification module 20 are provided in the second air supply section 142, and the second heat exchanger 3 and the compressor 6 are provided in the second air discharge section 152. The first heat exchanger 2, the evaporator 4, the condenser 5, the humidification module 20, the second heat exchanger 3 and the compressor 6 can thus be preloaded in the second housing 12 to form a second module.
The air blower 7 is provided in the third air blowing section 143, and the air exhaust blower 8 is provided in the third air exhaust section 153. The blower 7 and the exhaust blower 8 can thus be preloaded in the third housing 13 to form a third module.
The novel fan is divided into three modules, so that transportation and later assembly are facilitated.
The above technical schemes can be combined according to the need to achieve the best technical effect.
The foregoing is only illustrative of the principles and preferred embodiments of the present invention. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the invention and should also be considered as the scope of protection of the present invention.

Claims (10)

1. The fresh air unit with the heat recovery function is characterized by comprising a shell, a first heat exchanger, a second heat exchanger, an evaporator, a condenser, a compressor, an air supply fan, an air exhaust fan and an outdoor unit;
the shell is internally provided with an air supply channel and an air exhaust channel which are arranged at intervals;
one end of the shell is provided with a fresh air inlet communicated with the air supply duct and an indoor air return port communicated with the air exhaust duct, and the other end of the shell is provided with an indoor air supply port communicated with the air supply duct and an outdoor air outlet communicated with the air exhaust duct;
the first heat exchanger, the evaporator, the condenser and the air supply fan are sequentially arranged in the air supply duct at intervals, and the second heat exchanger, the compressor and the air exhaust fan are sequentially arranged in the air exhaust duct;
the evaporator and the condenser are respectively connected with the outdoor unit through a first medium flow pipeline;
the first heat exchanger, the compressor and the second heat exchanger are sequentially connected through a second medium flow pipeline.
2. The fresh air handling unit with a heat recovery function according to claim 1, wherein a plurality of the first heat exchangers are provided in the supply air duct at intervals, and the plurality of the first heat exchangers are arranged in parallel.
3. The fresh air handling unit with the heat recovery function according to claim 1, wherein a temperature sensor is arranged in the air supply duct, and the temperature sensor is in signal connection with a control unit of the fresh air handling unit.
4. The fresh air handling unit with a heat recovery function according to claim 1, wherein a primary filter is arranged in the air supply duct, and the primary filter is located between the fresh air inlet and the first heat exchanger.
5. The fresh air handling unit with a heat recovery function according to claim 1, wherein the supply air duct is provided with a humidification module, the humidification module being located between the condenser and the supply air fan.
6. The fresh air handling unit with the heat recovery function according to claim 5, wherein a humidity sensor is arranged in the air supply duct, and the humidity sensor is in signal connection with a control unit of the fresh air handling unit.
7. The fresh air handling unit with a heat recovery function according to claim 1, wherein a return air filter is disposed in the exhaust air duct, and the return air filter is located between the indoor return air inlet and the second heat exchanger.
8. The fresh air handling unit with a heat recovery function according to claim 1, wherein the return air filter is an ion waterfall filter.
9. The fresh air handling unit with a heat recovery function according to claim 1, wherein the supply air duct and the exhaust air duct are arranged at an upper and lower interval.
10. The fresh air handling unit with a heat recovery function according to any one of claims 1 to 9, wherein the housing includes a first housing, a second housing, and a third housing arranged in this order;
the air supply duct comprises a first air supply section arranged in the first shell, a second air supply section arranged in the second shell and a third air supply section arranged in the third shell;
the air exhaust duct comprises a first air exhaust section arranged in the first shell, a second air exhaust section arranged in the second shell and a third air exhaust section arranged in the third shell;
the primary filter of the fresh air unit is arranged in the first air supply section, the first heat exchanger, the evaporator, the condenser and the humidifying module of the fresh air unit are arranged in the second air supply section, and the air supply fan is arranged in the third air supply section;
the return air filter of the fresh air unit is arranged in the first exhaust section, the second heat exchanger and the compressor are arranged in the second exhaust section, and the exhaust fan is arranged in the third exhaust section.
CN202311254102.1A 2023-09-26 2023-09-26 Fresh air handling unit with heat recovery function Pending CN117091219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311254102.1A CN117091219A (en) 2023-09-26 2023-09-26 Fresh air handling unit with heat recovery function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311254102.1A CN117091219A (en) 2023-09-26 2023-09-26 Fresh air handling unit with heat recovery function

Publications (1)

Publication Number Publication Date
CN117091219A true CN117091219A (en) 2023-11-21

Family

ID=88771732

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311254102.1A Pending CN117091219A (en) 2023-09-26 2023-09-26 Fresh air handling unit with heat recovery function

Country Status (1)

Country Link
CN (1) CN117091219A (en)

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