CN210740627U - Heat recovery fresh air unit - Google Patents
Heat recovery fresh air unit Download PDFInfo
- Publication number
- CN210740627U CN210740627U CN201921749610.6U CN201921749610U CN210740627U CN 210740627 U CN210740627 U CN 210740627U CN 201921749610 U CN201921749610 U CN 201921749610U CN 210740627 U CN210740627 U CN 210740627U
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- CN
- China
- Prior art keywords
- fresh air
- channel
- exhaust
- steering shaft
- heat
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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]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
-
- 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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- Other Air-Conditioning Systems (AREA)
Abstract
The utility model discloses a heat recovery fresh air handling unit, which comprises a case, an exhaust channel and a fresh air channel which are arranged in the case side by side, wherein an exhaust fan is arranged at the inlet of the exhaust channel, a blower is arranged at the outlet of the fresh air channel, and a thermosyphon device and a heat pump device are sequentially arranged in the case along the fresh air flow direction; the thermosiphon device comprises a steering shaft, the steering shaft is embedded and installed between the air exhaust channel and the fresh air channel, a plurality of thermosiphons are fixedly installed on the steering shaft, the thermosiphons penetrate through the steering shaft, two ends of each thermosiphon are respectively positioned in the air exhaust channel and the fresh air channel, and one end of the steering shaft penetrates through the chassis and is fixedly connected with a motor; the heat pump device comprises a compressor, a four-way valve, a first heat exchanger, a throttle valve and a second heat exchanger which are sequentially connected through a refrigerant pipeline, wherein the first heat exchanger is arranged in a fresh air channel, and the second heat exchanger is arranged in an exhaust channel. The utility model discloses a heat recovery has reduced fresh air handling unit's energy consumption, has practiced thrift the energy, has protected the environment.
Description
Technical Field
The utility model relates to a fresh air handling unit, specifically speaking relates to a heat recovery fresh air handling unit.
Background
The fresh air unit mainly has the function of providing constant-temperature and constant-humidity air or fresh air for an air conditioning area. With the rapid development of society, the demand of various industrial production and process environments on fresh air is huge, and the requirement on constant temperature of the environment is strict, so that the operation energy consumption of an air conditioning system is increased dramatically, and the air conditioning system becomes an important factor for hindering industrial production. Therefore, the energy consumption of the air conditioning system is reduced, and great economic benefits and social benefits are achieved.
The traditional whole fresh air treatment process is that outdoor fresh air is directly sent into a constant-temperature constant-humidity air conditioning box, and is sent into a room after being treated by a surface cooling section, a reheating section and a humidifying section; and the indoor exhaust is directly discharged to the outdoor, so that the energy consumption of the fresh air treatment process is high, and the environment is polluted while a large amount of electric energy is consumed. How to reduce the energy consumption of the fresh air handling unit becomes a problem to be solved by related technical personnel.
Disclosure of Invention
An object of the utility model is to provide a heat recovery fresh air unit solves the higher problem of fresh air unit energy consumption, will air exhaust and carry out heat recovery, reduces fresh air unit energy consumption.
In order to achieve the above object, the utility model adopts the following technical scheme:
a heat recovery fresh air unit comprises a case, wherein an exhaust channel and a fresh air channel are arranged in the case side by side, an exhaust fan is arranged at the inlet of the exhaust channel, a blower is arranged at the outlet of the fresh air channel, and a thermosiphon device and a heat pump device are sequentially arranged in the case along the flow direction of fresh air; the thermosiphon device comprises a steering shaft and a plurality of thermosiphons, the steering shaft is embedded and installed between the air exhaust channel and the fresh air channel along the fresh air flow direction, the steering shaft is fixedly provided with the plurality of thermosiphons, the thermosiphons penetrate through the steering shaft, two ends of the thermosiphons are respectively positioned in the air exhaust channel and the fresh air channel, and one end of the steering shaft penetrates out of the case and is fixedly connected with a motor; the heat pump device comprises a compressor, a four-way valve, a first heat exchanger, a throttle valve and a second heat exchanger which are sequentially connected through a pipeline, wherein the first heat exchanger is arranged in a fresh air channel, and the second heat exchanger is arranged in an exhaust channel.
Furthermore, a water circulation assembly is further installed in the case and located between the thermosiphon device and the heat pump device, the water circulation assembly comprises a water pump and water cooling discs respectively installed on the air exhaust channel and the fresh air channel, inlets and outlets of the two water cooling discs are sequentially communicated through pipelines to form water circulation, the water pump is connected with one of the water cooling discs to provide water circulation power, and the size of each water cooling disc is matched with the inner diameters of the air exhaust channel and the fresh air channel.
Furthermore, a plurality of heat exchange fins are fixedly mounted at two ends of the thermosiphon, so that the heat exchange area with air is increased, and the heat exchange energy efficiency is improved.
Further, in order to increase the leakproofness, the steering spindle outer wall is laid and is equipped with the silica gel pad.
Furthermore, an air filter is installed at the inlet of the fresh air channel, so that impurities are prevented from entering the case.
Furthermore, still install the humidifier in the new trend passageway, provided the humidification function.
Furthermore, the outer wall of the case is provided with a heat preservation layer, so that the temperature of air in the case is preserved, and the loss of heat is avoided.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses a set up the thermosiphon device and can carry out one-level heat recovery to airing exhaust, realize the heat exchange of airing exhaust with the new trend through the thermosiphon to tentatively reduce or rise the temperature of new trend, realize in summer or winter the reduction of new trend temperature or rise, thereby reduced the energy consumption.
(2) The utility model discloses a set up heat pump device and can carry out second grade heat recovery to airing exhaust, fully will air exhaust through first heat exchanger and second heat exchanger and carried out heat recovery to very big reduction the energy consumption, then can satisfy the in-service use demand after cooling down the processing through the compressor again, whole fresh air unit energy consumption is low.
(3) The utility model discloses a set up the hydrologic cycle subassembly and realized equally airing exhaust with the heat exchange of new trend, still satisfied in great new trend system and aired exhaust and the new trend between higher heat conversion rate, make full use of the heat in airing exhaust, reduced the new trend unit energy consumption.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of the middle case of the present invention.
Fig. 3 is a schematic view of the installation structure of the thermosiphon of the present invention.
The labels in the figure are: 1-case, 11-insulating layer, 2-air exhaust channel, 21-air exhaust fan, 3-fresh air channel, 31-air blower, 4-thermosiphon device, 41-steering shaft, 42-pore channel, 43-thermosiphon, 44-motor, 45-heat exchange sheet, 5-heat pump device, 51-compressor, 52-four-way valve, 53-first heat exchanger, 54-throttle valve, 55-second heat exchanger, 6-water circulation component, 61-water cooling disc, 62-water pump, 63-mounting frame, 64-through hole, 7-air filter and 8-humidifier.
Detailed Description
Examples
As shown in fig. 1 to 3, the heat recovery fresh air handling unit provided in this embodiment includes a case 1, an insulating layer 11 is disposed on an outer wall of the case 1, and the insulating layer is made of a rubber-plastic insulating material in this embodiment, so as to insulate air in the case 1 and prevent direct heat exchange with the outside; an exhaust channel 2 and a fresh air channel 3 are arranged in the case 1 side by side, the inlet of the fresh air channel 3 is communicated with the outside fresh air, the inlet of the fresh air channel is provided with an air filter 7 for filtering the fresh air, and the outlet of the fresh air channel is sequentially provided with a humidifier 8 and a blower 31 for delivering the fresh air to the room through a pipeline. The inlet of the air exhaust channel 2 is communicated with the indoor space through a pipeline, the inlet of the air exhaust channel is provided with an air exhaust fan 21, the outlet of the air exhaust channel is communicated with the outdoor space, and the air exhaust fan 21 exhausts the indoor foul air to the outdoor space.
A thermosyphon device 4, a water circulation component 6 and a heat pump device 5 are sequentially arranged in the case 1, and fresh air reaches the required temperature after sequentially passing through the thermosyphon device 4, the water circulation component 6 and the heat pump device 5 and is delivered to the room; and the exhaust air passes through the thermosiphon device 4, the water circulation component 6 and the heat pump device 5 in sequence to realize heat exchange with fresh air, and is discharged outdoors after the temperature is reduced or increased after the heat exchange.
As shown in fig. 1 and 2, the illustrated thermosiphon device 4 includes a steering shaft 41 and a thermosiphon 43, the thermosiphon 43 is a hollow tubular object, and a liquid working medium for heat exchange is contained in the thermosiphon 43, and the liquid working medium used in this embodiment is R32. The steering shaft 41 is arranged between the exhaust channel 2 and the fresh air channel 3, the diameter of the steering shaft 41 is larger than the thickness of a wall body between the exhaust channel 2 and the fresh air channel 3, so that two side parts of the steering shaft 41 are exposed in the exhaust channel 2 and the fresh air channel 3, a silica gel pad is laid on the outer wall of the steering shaft 41 to be contacted with the wall body, the crossing of fresh air and exhaust air is avoided, one end of the steering shaft 41 penetrates out of the case 1 and is connected with a motor 44, the motor 44 is correspondingly and fixedly arranged on the outer side of the case 1, and the motor 44 can drive the steering shaft; a plurality of ducts 42 penetrate through the steering shaft 41 and are matched with the thermosiphon 43, the ducts 42 communicate with the exhaust channel 2 and the fresh air channel 3, the thermosiphon 43 penetrates through the ducts 42 to be installed in a sealing manner, two ends of the thermosiphon 43 are respectively located in the exhaust channel 2 and the fresh air channel 3, specifically, two ends of the thermosiphon 43 are both fixedly provided with a plurality of heat exchange fins 45, in the embodiment, the heat exchange fins 45 are preferably copper sheets and have better heat conductivity.
The heat exchange principle of 4 of the thermosiphon device is as follows: when the fan works in summer, the motor 44 is started to rotate the steering shaft 41, so that one end of the thermosiphon 43, which is positioned in the exhaust channel 2, is higher than one end of the fresh air channel 3, the motor 44 is stopped at the moment and is in a self-locking state, and the liquid working medium in the thermosiphon 43 is accumulated at the lower end of the thermosiphon 43, namely in the fresh air channel 3, due to the action of gravity. Because the new trend temperature is higher, the temperature of airing exhaust is lower, when the new trend flows through the low end, inside liquid working medium just absorbs heat and evaporates, form vapour, vapour flows to the high end of thermosiphon 43, flow to in the passageway 2 of airing exhaust promptly, in the passageway 2 of airing exhaust, the condensation becomes liquid after the vapour in thermosiphon 43 is refrigerated, then because the effect of gravity flows to the low end along the inner wall, so form the circulation, realized the heat transfer between new trend and the air exhaust, the new trend temperature reduces, the temperature of airing exhaust risees. When working in winter, the starting motor 44 reverses the steering shaft 41, so that one end of the thermosiphon 43, which is positioned in the exhaust channel 2, is lower than one end of the fresh air channel 3, at the moment, the motor 44 is stopped and is in a self-locking state, the liquid working medium in the thermosiphon 43 is accumulated at the low end of the thermosiphon 43 due to the action of gravity, namely, in the exhaust channel 2, the specific working principle is the same as summer, in winter, the exhaust temperature is higher, the fresh air temperature is lower, when the exhaust air flows through the low end, the internal liquid working medium absorbs heat and evaporates, steam flowing to the high end is formed, the steam positioned at the high end contacts with the fresh air to be cooled and condensed into liquid flowing to the low end, circulation is formed, the fresh air temperature.
The water circulation assembly 6 comprises a water pump 62 and a water cooling disc 61 respectively arranged on the exhaust channel 2 and the fresh air channel 3. Specifically, as shown in fig. 3, the water-cooling discs 61 are fixedly installed on the installation frame 63, and are fixedly installed in the exhaust channel 2 or the fresh air channel 3 through the installation frame 63, the size of the installation frame 63 is matched with the inner diameters of the exhaust channel 2 and the fresh air channel 3, a plurality of water-cooling discs 61 can be installed on the installation frame 63, all the water-cooling discs 61 are sequentially communicated through water pipes to form water circulation, and the water pump 62 is installed in the exhaust channel 2 and is connected with the water circulation to provide power. The mounting frame 63 is provided with a plurality of through holes 64 for ventilation. Because of the temperature difference in the exhaust channel 2 and the fresh air channel 3, the secondary exchange of the fresh air and the exhaust heat is realized through the heat exchange circulation of the two water cooling discs 61, in summer, the temperature of the fresh air is reduced, and the temperature of the exhaust air is increased; in winter, the temperature of fresh air rises and the temperature of exhaust air falls.
The heat pump device 5 comprises a compressor 51, a four-way valve 52, a first heat exchanger 53, a throttle valve 54 and a second heat exchanger 55 which are sequentially connected through a pipeline, wherein the first heat exchanger 53 is arranged in the fresh air channel 3, the pipeline is a refrigerant pipeline filled with refrigerant, the second heat exchanger 55 is arranged in the exhaust channel 2, and the compressor 51 is arranged on the outer wall of the case 1. In this embodiment, the first heat exchanger 53 is an evaporator, and the second heat exchanger 55 is a condenser, in this embodiment, the compressor, the evaporator, and the condenser are all existing components, and detailed descriptions of specific configurations are omitted. When the air conditioner runs in summer, the fresh air temperature is high, the exhaust air temperature is low, the heat pump device 5 runs a refrigeration cycle, the refrigerant in the condenser 55 exchanges heat in the exhaust air channel 2 and then is conveyed to the compressor 51 and the evaporator 53 through the refrigerant pipeline, in the evaporator 53, the liquid refrigerant absorbs the heat of the fresh air, is heated and evaporates and flows to the condenser 55 to form cycle heat exchange, and the compressor 51 is used for supplementary refrigeration so that the fresh air reaches the required temperature. During winter operation, the temperature of fresh air is low, the temperature of exhaust air is high, the heat pump device 5 operates a heating cycle, the four-way valve 52 converts the flow direction of a refrigerant, and the liquid refrigerant in the condenser 55 absorbs the heat of the exhaust air, evaporates and flows into the evaporator 53 to be pre-cooled and condensed into a liquid state, so that the fresh air is heated.
The utility model discloses an above-mentioned design, solved the higher problem of fresh air unit energy consumption effectively, make full use of the energy in airing exhaust to fresh air unit's energy consumption has been reduced.
The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. A heat recovery fresh air handling unit comprises a case (1), wherein an exhaust channel (2) and a fresh air channel (3) are arranged in the case (1) side by side, an exhaust fan (21) is arranged at an inlet of the exhaust channel (2), and a blower (31) is arranged at an outlet of the fresh air channel (3), and is characterized in that a thermosiphon device (4) and a heat pump device (5) are sequentially arranged in the case (1) along the flow direction of fresh air; the thermosiphon device (4) comprises a steering shaft (41) and a plurality of thermosiphons (43), the steering shaft (41) is embedded and installed between the air exhaust channel (2) and the fresh air channel (3) along the fresh air flow direction, one end of the steering shaft (41) penetrates through the case (1) and is fixedly connected with a motor (44), the steering shaft (41) is fixedly provided with the plurality of thermosiphons (43), and the thermosiphons (43) penetrate through the steering shaft (41) and are respectively positioned in the air exhaust channel (2) and the fresh air channel (3) at two ends; the heat pump device (5) comprises a compressor (51), a four-way valve (52), a first heat exchanger (53), a throttle valve (54) and a second heat exchanger (55) which are sequentially connected through pipelines, wherein the first heat exchanger (53) is installed in the fresh air channel (3), and the second heat exchanger (55) is installed in the exhaust air channel (2).
2. The heat recovery fresh air handling unit according to claim 1, wherein a water circulation assembly (6) is further installed in the case (1) and located between the thermosiphon device (4) and the heat pump device (5), the water circulation assembly (6) comprises a water pump (62) and water cooling discs (61) respectively installed on the exhaust channel (2) and the fresh air channel (3), inlets and outlets of the two water cooling discs (61) are sequentially communicated through a pipeline to form a water circulation, the water pump (62) is connected with one of the water cooling discs (61) to provide water circulation power, and the size of the water cooling disc (61) is matched with the inner diameter of the exhaust channel (2) or the fresh air channel (3).
3. The heat recovery fresh air handling unit according to claim 1, wherein a plurality of heat exchanging fins (45) are fixedly installed at two ends of the thermosiphon (43).
4. The heat recovery fresh air handling unit according to claim 1, wherein a silica gel pad is laid on the outer wall of the steering shaft (41).
5. A heat recovery fresh air handling unit according to claim 1, wherein an air filter (7) is installed at the inlet of the fresh air channel (3), and a humidifier (8) is also installed at the outlet of the fresh air channel (3).
6. A heat recovery fresh air handling unit according to claim 1, wherein the outer wall of the cabinet (1) is provided with an insulating layer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749610.6U CN210740627U (en) | 2019-10-18 | 2019-10-18 | Heat recovery fresh air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921749610.6U CN210740627U (en) | 2019-10-18 | 2019-10-18 | Heat recovery fresh air unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210740627U true CN210740627U (en) | 2020-06-12 |
Family
ID=70984262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921749610.6U Expired - Fee Related CN210740627U (en) | 2019-10-18 | 2019-10-18 | Heat recovery fresh air unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210740627U (en) |
-
2019
- 2019-10-18 CN CN201921749610.6U patent/CN210740627U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 Termination date: 20211018 |