CN220038685U - Double-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery - Google Patents
Double-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery Download PDFInfo
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- CN220038685U CN220038685U CN202321042728.1U CN202321042728U CN220038685U CN 220038685 U CN220038685 U CN 220038685U CN 202321042728 U CN202321042728 U CN 202321042728U CN 220038685 U CN220038685 U CN 220038685U
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- 238000001816 cooling Methods 0.000 title claims abstract description 27
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 129
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims description 20
- 230000005484 gravity Effects 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 abstract description 10
- 230000005494 condensation Effects 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000013589 supplement Substances 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 description 4
- 238000003303 reheating Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
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- Central Air Conditioning (AREA)
Abstract
A double-cold-source fresh air unit based on indirect evaporative cooling heat recovery is characterized in that the upper layer of a fresh air box body 1 is a fresh air channel, and a filtering section I, a filtering section II, a heat exchange coil I, a heat exchange coil II, a water collecting disc I, a heat exchange coil III, a humidifying section, a water collecting disc III and a blower I are arranged in the fresh air channel. The lower layer of the fresh air box body is an exhaust channel, and a heat pump unit, a water tank, a water pump, a heat exchange coil IV, an electromagnetic valve, a water collecting disc II and an exhaust fan I are arranged in the channel. The utility model can cool the heat exchange coil by collecting cold water in the water collecting tray through indirect evaporative cooling, thereby solving the problems that the condensation heat can not be immediately discharged in summer and the cold quantity of the cold source of the primary machine room can not be increased; meanwhile, the system can supplement the heat source of the primary machine room in winter, and solves the problems of insufficient heating capacity and insufficient humidification capacity in winter.
Description
Technical Field
The utility model relates to the technical field of indoor fresh air, in particular to a double-cold-source fresh air unit based on indirect evaporative cooling heat recovery.
Background
The traditional heat-humidity coupling system is subject to the problem of industry personnel due to low energy efficiency of the air conditioner and high waste of high-grade energy. The temperature and humidity independent regulation air conditioner with an independent fresh air system is adopted continuously as a novel air conditioner energy-saving solution. The traditional fresh air unit can not meet the requirements, the solution fresh air dehumidifier can save energy only by being applied under the condition that waste heat is available, and the solution fresh air dehumidifier has the problems of large volume, easy corrosion, liquid carrying and the like. In order to realize accurate control of indoor moisture content, a double-cold-source fresh air unit is generated. The double-cold-source fresh air unit dehumidifies and cools fresh air by using two different working temperatures, so that cascade utilization of energy sources can be fully realized, and accurate control of fresh air temperature and humidity can be realized.
The double-cold-source temperature and humidity independent control air conditioning system adopts two cold sources with different evaporating temperatures in the same air conditioning system, and adopts a system form of independent temperature and humidity control in the air treatment process. In the double-cold-source air conditioning system, a high-temperature cold source is used as a main cold source to bear all fresh air loads and most indoor sensible heat loads in summer; the low-temperature cold source is an auxiliary cold source and mainly bears indoor wet load in summer. The fresh air unit uses two cold sources of high temperature and low temperature as working cold sources simultaneously, and deep dehumidification is carried out on fresh air and is responsible for indoor relative humidity control.
The low-temperature cold source commonly used by the double-cold source fresh air machine is a direct expansion compressor. The direct expansion compressor is adopted as a double-cold-source fresh air machine of a low-temperature cold source, so that the condensation heat generated by a direct expansion system in summer is large and can be taken away only by a primary machine room cold source, the burden of the primary machine room cold source is increased, and when the condensation heat cannot be immediately discharged, the condensation temperature is too high, so that the energy efficiency of a refrigerating system is affected; and the system only has refrigeration working conditions, so that the heating capacity in winter is insufficient, the water supply temperature of the fresh air unit is low, and the time adding capability of the fresh air unit is insufficient.
The utility model can cool the heat exchange coil by collecting cold water in the water collecting tray through a direct evaporation cooling mode, thereby solving the problems that the condensation heat can not be immediately discharged in summer and the cold quantity of the cold source of the primary machine room can be increased; meanwhile, the system can supplement the heat source of the primary machine room in winter, and solves the problems of insufficient heating capacity and insufficient humidification capacity in winter.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a double-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery.
The technical scheme adopted for solving the technical problems is as follows:
a double-cold-source fresh air unit based on indirect evaporative cooling heat recovery comprises a fresh air box body 1, an air port I2, a heat exchange coil I3, a heat exchange coil II4, a heat exchange coil III5, a heat exchange coil IV6, a heat pump unit 7, a blower I8, an exhaust fan I9, an electromagnetic valve 10, a water tank 11, a water pump 12, a water collecting disc II13, a water collecting disc III14, a water collecting disc I15, a spray head 16, a filtering section I17, a filtering section II18, an air port II19 and a humidifying section 20; wherein: the fresh air box body 1 is used for supporting the whole part, and the fresh air box body 1 is divided into an upper layer and a lower layer.
The upper layer of the fresh air box body 1 is a fresh air channel, and a filtering section I17, a filtering section II18, a heat exchange coil I3, a heat exchange coil II4, a water collecting disc I15, a heat exchange coil III5, a humidifying section 20, a water collecting disc III14 and a blower I8 are arranged in the fresh air channel; wherein: the rear part of the air port I2 is provided with a filter section I17, and the rear part of the filter section I17 is provided with a filter section II18; the heat exchange coil I3 and the heat exchange coil II4 are installed in a combined mode, the bottoms of the heat exchange coil I3 and the heat exchange coil II4 are provided with a water collecting disc I15, and the water collecting disc I15 is directly communicated with the water tank 11; the rear parts of the heat exchange coil I3 and the heat exchange coil II4 are provided with a heat exchange coil III5, the rear part of the heat exchange coil III5 is provided with a humidifying section 20, and the top of the heat exchange coil III5 is communicated with the heat pump unit 7; the bottom of humidification section 20 is provided with catchment dish III14, and the rear portion of humidification section 20 is provided with forced draught blower I8.
The lower layer of the fresh air box body 1 is an exhaust channel, and a heat pump unit 7, a water tank 11, a water pump 12, a heat exchange coil IV6, an electromagnetic valve 10, a water collecting disc II13 and an exhaust fan I9 are arranged in the channel; wherein: the front part of the air port II19 is provided with a heat pump unit 7, and the heat pump unit 7 is communicated with a heat exchange coil II4; the front part of the heat pump unit 7 is provided with a water tank 11, the front part of the water tank 11 is provided with a heat exchange coil IV6, the top of the heat exchange coil IV6 is provided with a spray head 16, the bottom of the heat exchange coil IV6 is provided with a water collecting disc II13, the heat exchange coil IV6 is communicated with the bottom of a heat exchange coil III5 through an electromagnetic valve 10, and the heat exchange coil IV6 is also directly communicated with the heat pump unit 7; the pipeline of the spray head 16 is communicated with the water tank 11 through the water pump 12; an exhaust fan I9 is arranged at the front part of the heat exchange coil IV 6.
The utility model also has the following additional technical characteristics:
the technical scheme of the utility model is further specifically optimized: fresh air enters an upper fresh air channel of the fresh air box body 1 through the air port I2, is fed indoors through the air feeder I8, and exhaust air enters a lower exhaust channel of the fresh air box body 1 through the air port II19 and is exhausted outdoors through the exhaust fan I9.
The technical scheme of the utility model is further specifically optimized: the heat exchange coil II4 is connected to one end of the heat pump unit 7 through a refrigerant pipeline, the heat exchange coil III5 and the heat exchange coil IV6 are connected to the other end of the heat pump unit 7 through water pipes, and the flow of the heat exchange coil III5 and the heat exchange coil IV6 is adjusted through the opening of the electromagnetic valve 10.
The technical scheme of the utility model is further specifically optimized: the water in the water collecting disc II13 and the water in the water collecting disc I15 flows into the water tank 11 under the action of gravity, and the water in the water tank 11 is lifted by the water pump 12 and sprayed onto the heat exchange coil IV6 through the spray head 16; the water in the water tank 11 is discharged through a drain pipe provided therein when it exceeds the overflow port.
Compared with the prior art, the utility model has the advantages that:
the utility model can cool the heat exchange coil by collecting cold water in the water collecting tray through a direct evaporation cooling mode, thereby solving the problems that the condensation heat can not be immediately discharged in summer and the cold quantity of the cold source of the primary machine room can be increased; meanwhile, the system can supplement the heat source of the primary machine room in winter, and solves the problems of insufficient heating capacity and insufficient humidification capacity in winter.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the summer operating mode flow of the present utility model;
FIG. 3 is a schematic diagram of the winter operation of the present utility model.
Reference numerals illustrate: the fresh air machine comprises a fresh air box body 1, an air port I2, a heat exchange coil I3, a heat exchange coil II4, a heat exchange coil III5, a heat exchange coil IV6, a heat pump unit 7 and a blower I8; and an exhaust fan I9. Solenoid valve 10, water tank 11, water pump 12, water collection dish II13, water collection dish III14, water collection dish I15, shower nozzle 16, filtration section I17, filtration section II18, humidification section 20.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.
Example 1
A double-cold-source fresh air unit based on indirect evaporative cooling heat recovery is shown in FIG. 1, and comprises a fresh air box body 1, an air port I2, a heat exchange coil I3, a heat exchange coil II4, a heat exchange coil III5, a heat exchange coil IV6, a heat pump unit 7, a blower I8, an exhaust fan I9, an electromagnetic valve 10, a water tank 11, a water pump 12, a water collecting disc II13, a water collecting disc III14, a water collecting disc I15, a spray head 16, a filter section I17, a filter section II18, an air port II19 and a humidifying section 20; wherein: the fresh air box body 1 is used for supporting the whole part, and the fresh air box body 1 is divided into an upper layer and a lower layer.
The upper layer of the fresh air box body 1 is a fresh air channel, and a filtering section I17, a filtering section II18, a heat exchange coil I3, a heat exchange coil II4, a water collecting disc I15, a heat exchange coil III5, a humidifying section 20, a water collecting disc III14 and a blower I8 are arranged in the fresh air channel; wherein: the rear part of the air port I2 is provided with a filter section I17, and the rear part of the filter section I17 is provided with a filter section II18; the heat exchange coil I3 and the heat exchange coil II4 are installed in a combined mode, the bottoms of the heat exchange coil I3 and the heat exchange coil II4 are provided with a water collecting disc I15, and the water collecting disc I15 is directly communicated with the water tank 11; the rear parts of the heat exchange coil I3 and the heat exchange coil II4 are provided with a heat exchange coil III5, the rear part of the heat exchange coil III5 is provided with a humidifying section 20, and the top of the heat exchange coil III5 is communicated with the heat pump unit 7; the bottom of humidification section 20 is provided with catchment dish III14, and the rear portion of humidification section 20 is provided with forced draught blower I8.
The lower layer of the fresh air box body 1 is an exhaust channel, and a heat pump unit 7, a water tank 11, a water pump 12, a heat exchange coil IV6, an electromagnetic valve 10, a water collecting disc II13 and an exhaust fan I9 are arranged in the channel; wherein: the front part of the air port II19 is provided with a heat pump unit 7, and the heat pump unit 7 is communicated with a heat exchange coil II4; the front part of the heat pump unit 7 is provided with a water tank 11, the front part of the water tank 11 is provided with a heat exchange coil IV6, the top of the heat exchange coil IV6 is provided with a spray head 16, the bottom of the heat exchange coil IV6 is provided with a water collecting disc II13, the heat exchange coil IV6 is communicated with the bottom of a heat exchange coil III5 through an electromagnetic valve 10, and the heat exchange coil IV6 is also directly communicated with the heat pump unit 7; the pipeline of the spray head 16 is communicated with the water tank 11 through the water pump 12; an exhaust fan I9 is arranged at the front part of the heat exchange coil IV 6.
Fresh air enters an upper fresh air channel of the fresh air box body 1 through the air port I2, is fed indoors through the air feeder I8, and exhaust air enters a lower exhaust channel of the fresh air box body 1 through the air port II19 and is exhausted outdoors through the exhaust fan I9.
The heat exchange coil II4 is connected to one end of the heat pump unit 7 through a refrigerant pipeline, the heat exchange coil III5 and the heat exchange coil IV6 are connected to the other end of the heat pump unit 7 through water pipes, and the flow of the heat exchange coil III5 and the heat exchange coil IV6 is adjusted through the opening of the electromagnetic valve 10.
The water in the water collecting disc II13 and the water in the water collecting disc I15 flows into the water tank 11 under the action of gravity, and the water in the water tank 11 is lifted by the water pump 12 and sprayed onto the heat exchange coil IV6 through the spray head 16; the water in the water tank 11 is discharged through a drain pipe provided therein when it exceeds the overflow port.
The utility model can timely take away the condensation heat of the heat exchange coil IV6 by a direct evaporation cooling mode, can reduce the condensation temperature and effectively improve the refrigerating effect of the unit. The heat pump unit can provide heat for fresh air in winter, so that the heating capacity of the unit is improved, and the humidifying effect of the unit is improved.
Example 2
In the operation description of the working condition in summer, as shown in fig. 2, the cooling capacity generated by the primary machine room cooling source and the heat pump unit respectively realize the pre-cooling and the deep cooling of fresh air, and one part of condensation heat of the heat pump unit is taken away by an exhaust and spray system, and the other part of condensation heat is used for reheating the fresh air by the heat exchange coil III.
Example 3
In the operation description of the working condition in winter, as shown in fig. 3, the electromagnetic valve 10 is closed, when the outdoor temperature is higher than 5 ℃, the heat pump is only started, the fresh air is heated through the heat exchange coil II, and when the outdoor temperature is lower than 5 ℃, the heat source of the primary machine room is started, so that the fresh air is preheated. The water pump 12 is turned off, the heat exchange coil IV absorbs the heat of exhaust air, and the heat is exhausted through the exhaust air channel.
Example 4
Based on the embodiment 1-3, the KL-3 fin type heat exchanger is adopted by the heat exchange coil I3, the heat exchange coil III5 and the heat exchange coil IV6, and the TL type copper pipe serial aluminum sheet type heat exchanger is adopted by the heat exchange coil II 4.
The heat pump unit 7 adopts an MWSC010DRP type heat recovery variable frequency heat pump unit.
The blower I8 and the exhaust fan I9 adopt LKT series centrifugal fans.
The electromagnetic valve 10 adopts a 210 series two-way electromagnetic valve, and the water pump 12 adopts a TDX series submersible pump.
The water collecting tray II13, the water collecting tray III14 and the water collecting tray I15 adopt groove water collecting trays.
The filtering section I17 adopts a G4-level plate filter, and the filtering section II18 adopts an F7-level bag filter.
The humidification stage 20 employs wet film humidification.
In summary, as described in embodiments 1-4, the heat pump unit is used as the built-in heat source, and the cooling or heating of fresh air can be realized through the conversion of the heat exchange coil pipe. The utility model splits the condensing heat coil connected with the heat pump unit, wherein the condensing heat coil is divided into two independent heat exchange coils which are respectively arranged in an upper layer channel and a lower layer channel, the upper layer channel condensing heat coil realizes reheating of fresh air, and the lower layer channel condensing heat coil exchanges heat with exhaust air to emit condensing heat of the heat pump unit; and the upper layer reheating coil is closed in winter by arranging a valve, and the upper layer and the lower layer heat exchange coil can realize the conversion of refrigeration or heating through pipeline conversion. The utility model is provided with a spray system spray water pipe, a spray water pump, a spray head and a water tank which are used for cooling the reheating coil pipe, and can spray water to cool the heat exchange coil pipe through the spray head. The utility model can collect the condensed water of the water collecting disc I and the water collecting disc II, the collected condensed water can flow into the water tank under the action of gravity, the power is provided by the water pump, and the condensed water is sprayed on the heat exchange coil pipe through the spray head to form water flow circulation.
The above detailed description of embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model as claimed, but is merely representative of selected embodiments of the utility model.
Claims (10)
1. Double-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery, its characterized in that: the air conditioner comprises a fresh air box body (1), an air port I (2), a heat exchange coil I (3), a heat exchange coil II (4), a heat exchange coil III (5), a heat exchange coil IV (6), a heat pump unit (7), a blower I (8), an exhaust fan I (9), an electromagnetic valve (10), a water tank (11), a water pump (12), a water collecting disc II (13), a water collecting disc III (14), a water collecting disc I (15), a spray head (16), a filtering section I (17), a filtering section II (18), an air port II (19) and a humidifying section (20); the fresh air box body (1) is used for supporting the whole part, and the fresh air box body (1) is divided into an upper layer and a lower layer; wherein:
the upper layer of the fresh air box body (1) is a fresh air channel, and a filtering section I (17), a filtering section II (18), a heat exchange coil I (3), a heat exchange coil II (4), a water collecting disc I (15), a heat exchange coil III (5), a humidifying section (20), a water collecting disc III (14) and a blower I (8) are arranged in the fresh air channel; wherein: the rear part of the air port I (2) is provided with a filtering section I (17), and the rear part of the filtering section I (17) is provided with a filtering section II (18); the heat exchange coil I (3) and the heat exchange coil II (4) are installed in a combined mode, a water collecting disc I (15) is arranged at the bottoms of the heat exchange coil I (3) and the heat exchange coil II (4), and the water collecting disc I (15) is directly communicated with the water tank (11); the rear parts of the heat exchange coil I (3) and the heat exchange coil II (4) are provided with a heat exchange coil III (5), the rear part of the heat exchange coil III (5) is provided with a humidifying section (20), and the top of the heat exchange coil III (5) is communicated with a heat pump unit (7); the bottom of the humidifying section (20) is provided with a water collecting disc III (14), and the rear part of the humidifying section (20) is provided with a blower I (8);
the lower layer of the fresh air box body (1) is an exhaust channel, and a heat pump unit (7), a water tank (11), a water pump (12), a heat exchange coil IV (6), an electromagnetic valve (10), a water collecting disc II (13) and an exhaust fan I (9) are arranged in the channel; wherein: the front part of the air port II (19) is provided with a heat pump unit (7), and the heat pump unit (7) is communicated with the heat exchange coil II (4); the front part of the heat pump unit (7) is provided with a water tank (11), the front part of the water tank (11) is provided with a heat exchange coil IV (6), the top of the heat exchange coil IV (6) is provided with a spray head (16), the bottom of the heat exchange coil IV (6) is provided with a water collecting disc II (13), the heat exchange coil IV (6) is communicated with the bottom of the heat exchange coil III (5) through an electromagnetic valve (10), and the heat exchange coil IV (6) is also directly communicated with the heat pump unit (7); the pipeline of the spray head (16) is communicated with the water tank (11) through the water pump (12); an exhaust fan I (9) is arranged at the front part of the heat exchange coil IV (6).
2. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: fresh air enters an upper fresh air channel of the fresh air box body (1) through the air port I (2), is fed indoors through the air feeder I (8), and exhaust air enters a lower exhaust channel of the fresh air box body (1) through the air port II (19) and is exhausted outdoors through the exhaust fan I (9).
3. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the heat exchange coil II (4) is connected to one end of the heat pump unit (7) through a refrigerant pipeline, the heat exchange coil III (5) and the heat exchange coil IV (6) are connected to the other end of the heat pump unit (7) through water pipes, and the flow of the heat exchange coil III (5) and the heat exchange coil IV (6) is adjusted through the opening of the electromagnetic valve (10).
4. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the water in the water collecting disc II (13) and the water in the water collecting disc I (15) flow into the water tank (11) under the action of gravity, and the water in the water tank (11) is lifted by the water pump (12) and sprayed onto the heat exchange coil IV (6) through the spray head (16); the water in the water tank (11) is discharged through a self-contained drain pipe when the water exceeds the overflow port.
5. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the heat exchange coil I (3), the heat exchange coil III (5) and the heat exchange coil IV (6) all adopt KL-3 type fin type heat exchangers, and the heat exchange coil II (4) adopts TL type copper pipe serial aluminum sheet type heat exchangers.
6. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the heat pump unit (7) adopts an MWSC010DRP type heat recovery variable-frequency heat pump unit.
7. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the blower I (8) and the exhaust fan I (9) are all LKT series centrifugal fans; the electromagnetic valve (10) adopts (210) series two-way electromagnetic valve and the water pump (12) adopts TDX series submersible pump.
8. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the water collecting disc II (13), the water collecting disc III (14) and the water collecting disc I (15) are groove water collecting discs.
9. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the filtering section I (17) adopts a G4-level plate filter, and the filtering section II (18) adopts an F7-level bag filter.
10. The dual-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery of claim 1, wherein: the humidifying section (20) adopts a wet film for humidifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042728.1U CN220038685U (en) | 2023-05-05 | 2023-05-05 | Double-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321042728.1U CN220038685U (en) | 2023-05-05 | 2023-05-05 | Double-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery |
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| CN220038685U true CN220038685U (en) | 2023-11-17 |
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| CN202321042728.1U Active CN220038685U (en) | 2023-05-05 | 2023-05-05 | Double-cold-source fresh air handling unit based on indirect evaporative cooling heat recovery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117663262A (en) * | 2023-11-24 | 2024-03-08 | 广州国灵空调有限公司 | Modularized multi-cold-source cascade energy recovery fresh air exhaust treatment unit |
-
2023
- 2023-05-05 CN CN202321042728.1U patent/CN220038685U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117663262A (en) * | 2023-11-24 | 2024-03-08 | 广州国灵空调有限公司 | Modularized multi-cold-source cascade energy recovery fresh air exhaust treatment unit |
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