CN114279028B - Fresh air handling unit based on hexagonal plate replacement - Google Patents
Fresh air handling unit based on hexagonal plate replacement Download PDFInfo
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- CN114279028B CN114279028B CN202111281794.XA CN202111281794A CN114279028B CN 114279028 B CN114279028 B CN 114279028B CN 202111281794 A CN202111281794 A CN 202111281794A CN 114279028 B CN114279028 B CN 114279028B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 abstract description 13
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The invention relates to a fresh air handling unit based on hexagonal plate exchange, which comprises a heat recovery unit, a heat pump unit and a spray unit, wherein the heat recovery unit is a plate heat exchanger, a first air channel and a second air channel which are alternately distributed are arranged in the plate heat exchanger, two ports of the first air channel are correspondingly positioned at the left upper side and the right upper side of the plate heat exchanger, a water through hole is formed in the bottom of the first air channel, two ports of the second air channel are correspondingly positioned at the left lower side and the right lower side of the plate heat exchanger, the heat pump unit comprises a compressor, a first condenser, an expansion valve and an evaporator which are sequentially connected end to end through pipelines, the spray unit comprises a water collecting tank and a spray device, the water collecting tank is connected with the spray device through pipelines provided with a circulating pump, a delivery channel is arranged in a passage of fresh air flowing through the second air channel and the evaporator of the plate heat exchanger from left to right, and an exhaust channel is arranged in a passage of the first air channel and the first condenser which flows through the plate heat exchanger from right to left. The wind power generation device has the advantages of strong functionality, good stability, small wind resistance, low energy consumption and high efficiency.
Description
Technical Field
The invention relates to air conditioning equipment, in particular to a fresh air handling unit based on hexagonal plate replacement.
Background
In the field of energy conservation and air conditioning of buildings, fresh air is usually required to be treated to meet requirements, namely, cooling and dehumidifying treatment is carried out on air in summer, and heating and humidifying treatment is carried out on the air in winter. The refrigeration equipment adopted in the field is mainly a heat pump mode and consists of a compressor, an evaporator, a condenser, an expansion valve and the like, and in the operation process, the refrigeration working medium is converted between a gaseous state and a liquid state through the compressor and the expansion valve, on one hand, the refrigeration working medium at the condenser releases heat, and the heat is discharged through return air; on the other hand, the refrigerating working medium absorbs heat at the evaporator to reduce the fresh air temperature, thereby realizing the purposes of cooling and dehumidifying. However, the heat pump-based fresh air handling unit has low dehumidification capacity per unit electric energy, and for this reason, a person skilled in the art has developed a double-cold-source fresh air handling unit, for example, the invention patent with publication number CN105444310B, which improves the dehumidification effect by adding a surface cooler on one hand, and achieves the energy saving purpose by providing a heat recovery device composed of two plate heat exchangers on the other hand, but the heat recovery device of this structure has the following problems in practical application: 1. the two side-by-side plate heat exchangers are arranged, so that the unit volume is increased, and the difficulty in air duct arrangement is increased; 2. because the flow directions of the two internal air channels of the conventional plate heat exchanger are mutually perpendicular, the direction change amplitude of the air channels in the unit is larger, so that the wind resistance is larger, and the energy saving and consumption reduction effects are affected.
Disclosure of Invention
The invention aims to provide a fresh air handling unit based on hexagonal plate replacement, which has the advantages of simple structure, strong functionality, good stability, small wind resistance, low energy consumption and high efficiency.
In order to solve the problems in the prior art, the fresh air handling unit based on the hexagonal plate exchange comprises a shell, and a heat recovery unit, a heat pump unit and a spray unit which are arranged in the shell, and is characterized in that the heat recovery unit is a plate heat exchanger with hexagonal front and rear ends and is arranged in the middle of the shell, a first air channel and a second air channel which are alternately distributed along the front and rear directions are arranged in the plate heat exchanger, two ends of the first air channel are correspondingly a first left air channel and a first right air channel, the first left air channel and the first right air channel are correspondingly arranged on the left upper side and the right upper side of the plate heat exchanger, water through holes which are distributed at intervals are arranged at the bottom of the first air channel, two ends of the second air channel are correspondingly arranged on the second left air channel and the second right air channel, the second left air channel and the second air channel are correspondingly arranged on the left lower side and the right lower side of the plate heat exchanger, the heat pump unit comprises a compressor, a first condenser, an expansion valve and an evaporator which are sequentially connected in a head-tail mode through pipelines, the spray unit comprises a water collecting tank arranged on the lower side of the plate heat exchanger and a first air channel and a first right air channel which is arranged at the left side of the plate heat exchanger, a first air channel and a second air channel which is arranged at the left air channel and a right air channel which is connected to the first air channel and a second air channel which is arranged at the left air channel and a right air channel which is connected through the first air channel and the air channel.
Further, the invention relates to a fresh air handling unit based on hexagonal plate replacement, wherein a first fin and a second fin which are distributed vertically at intervals are correspondingly arranged on the front wall and the rear wall of a first air duct, the first fin and the second fin are in an arc shape with the middle part lower than two ends and are alternately distributed in the vertical direction, a third fin and a fourth fin which are distributed vertically at intervals are correspondingly arranged on the front wall and the rear wall of a second air duct, and the third fin and the fourth fin are in an arc shape with the middle part higher than two ends and are alternately distributed in the vertical direction.
Furthermore, the invention discloses a fresh air handling unit based on hexagonal plate replacement, wherein the widths of a first air duct and a second air duct are D1, the widths of a first fin, a second fin, a third fin and a fourth fin are D2,1/2D1 is smaller than D2 and smaller than D1, and slopes are arranged on the upper side surfaces of the first fin and the second fin.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate replacement, wherein the heat pump unit further comprises a second condenser arranged on a pipeline between the first condenser and the expansion valve, and the second condenser is positioned in the air delivery channel and is positioned on the right side of the evaporator.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate exchange, wherein a surface cooler is arranged in an air delivery channel between an evaporator and a plate heat exchanger, and a liquid inlet and a liquid outlet of the surface cooler are connected with an external cold source or a heat source through pipelines.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate replacement, wherein a blower is arranged in the air delivery channel and positioned between the evaporator and the second condenser, and an exhaust fan is arranged in the exhaust channel and positioned at one side of the inlet end.
Furthermore, the fresh air handling unit based on hexagonal plate replacement is characterized in that a fresh air strainer and a fresh air fine filter are arranged in the air delivery channel from left to right on one side of the inlet end, and a return air strainer is arranged in the exhaust channel and on the right side of the exhaust fan.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate exchange, wherein a first air valve is arranged in an air delivery channel between a plate heat exchanger and a fresh air fine filter, an air supply bypass is arranged on the lower side of the plate heat exchanger, and the air supply bypass is communicated with the air delivery channel through a second air valve arranged on the lower side of the first air valve.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate exchange, wherein an exhaust bypass is arranged on the upper side of the plate heat exchanger, a third air valve is arranged in the middle of the exhaust bypass, and two ends of the exhaust bypass are correspondingly communicated with exhaust channels on the left side and the right side of the plate heat exchanger.
Further, the invention relates to a fresh air handling unit based on hexagonal plate replacement, wherein a fourth air valve is arranged in an air delivery channel between an evaporator and an air feeder, and an air supply bypass is communicated with the air delivery channel through a fifth air valve arranged on the lower side of the fourth air valve.
Compared with the prior art, the fresh air handling unit based on hexagonal plate replacement has the following advantages: the invention adopts a plate heat exchanger with hexagonal front and rear ends and is arranged in the middle of the shell by arranging the shell and a heat recovery unit, a heat pump unit and a spray unit in the shell, wherein a first air channel and a second air channel which are alternately distributed along the front and rear directions are arranged in the plate heat exchanger, two end openings of the first air channel are correspondingly a first left air channel and a first right air channel, the first left air channel and the first right air channel are correspondingly arranged at the left upper side and the right upper side of the plate heat exchanger, water through holes which are alternately distributed are arranged at the bottom of the first air channel, two end openings of the second air channel are correspondingly a second left air channel and a second right air channel, the second left air channel and the second right air channel are correspondingly arranged at the left lower side and the right lower side of the plate heat exchanger, the heat pump unit is provided with a compressor, a first condenser, an expansion valve and an evaporator which are sequentially connected end to end by pipelines, the first air channel and the spray unit is provided with a water collecting tank and a spray device which are correspondingly arranged at the first right air channel and the first air channel, and the spray device is connected through pipelines which are respectively arranged at the left upper side and right side of the plate heat exchanger, the first air channel and the right air channel are correspondingly arranged at the left air channel and the right air channel. Therefore, the fresh air unit based on hexagonal plate exchange is formed, and has the advantages of simple structure, strong functionality, good stability, small wind resistance, low energy consumption and high efficiency, and in practical application, fresh air and return air can be subjected to full heat exchange in the plate heat exchanger when correspondingly passing through the air delivery duct and the air exhaust duct, so that high-efficiency heat recovery is realized, energy consumption is reduced, and the energy efficiency ratio of the unit is improved; when the latent heat load of fresh air is large, water is sprayed into the first air channel of the plate heat exchanger through the spraying unit, return air can be in full heat exchange with water, the heat exchange efficiency with the fresh air is improved due to the fact that the return air temperature is reduced, an indirect heat insulation evaporation cooling system is formed by the spraying unit and the plate heat exchanger, the pretreatment effect on the fresh air can be effectively improved, and the functionality, stability and adaptability of the unit are improved. According to the invention, the hexagonal plate heat exchanger is adopted, the two ends of the first air duct are correspondingly arranged on the upper left side and the upper right side of the plate heat exchanger, and the two ends of the second air duct are correspondingly arranged on the lower left side and the lower right side of the plate heat exchanger, so that on one hand, the structure is simplified, the air duct arrangement difficulty is reduced, on the other hand, the air duct turning amplitude is reduced, and compared with a heat recovery device formed by the existing double-plate heat exchanger, the wind resistance can be effectively reduced, and the energy saving and consumption reduction effects are improved.
The invention relates to a fresh air handling unit based on hexagonal plate replacement, which is described in detail below with reference to the specific embodiments shown in the drawings.
Drawings
FIG. 1 is a schematic diagram of a fresh air handling unit based on hexagonal plate replacement according to the present invention;
FIG. 2 is a front view of a plate heat exchanger of the present invention;
FIG. 3 is a top view of a plate heat exchanger according to the present invention;
FIG. 4 is an isometric view of a plate heat exchanger of the present invention;
FIG. 5 is a bottom view of a plate heat exchanger of the present invention;
FIG. 6 is a second isometric view of a plate heat exchanger of the present invention;
FIG. 7 is a view in the A-A direction of FIG. 2;
FIG. 8 is a left side view of a plate heat exchanger of the present invention;
FIG. 9 is a right side view of a plate heat exchanger of the present invention;
FIG. 10 is a view in the B-B direction of FIG. 3;
FIG. 11 is a view in the C-C direction of FIG. 3;
FIG. 12 is an enlarged view of a portion of the D position of FIG. 4;
FIG. 13 is an enlarged view of a portion of the E position of FIG. 6;
fig. 14 is a partial enlarged view of the F position in fig. 7.
Detailed Description
First, it should be noted that the terms of up, down, left, right, front, back, etc. in the present invention are merely described according to the drawings, so as to facilitate understanding, and are not limited to the technical solution of the present invention and the scope of protection claimed.
The embodiment of the fresh air handling unit based on hexagonal plate replacement, as shown in fig. 1 to 14, comprises a shell, and a heat recovery unit, a heat pump unit and a spraying unit which are arranged in the shell. The heat recovery unit adopts a plate heat exchanger 11 with hexagonal front and rear ends and is arranged in the middle of a shell, a first air channel and a second air channel which are alternately distributed along the front and rear directions are arranged in the plate heat exchanger 11, two ports of the first air channel are respectively provided with a first left air port 12 and a first right air port 13, the first left air port 12 and the first right air port 13 are respectively arranged on the left upper side and the right upper side of the plate heat exchanger 11, and water holes which are alternately distributed are arranged at the bottom of the first air channel; the two ports of the second air duct are correspondingly provided with a second left air port 14 and a second right air port 15, and the second left air port 14 and the second right air port 15 are correspondingly arranged on the left lower side and the right lower side of the plate heat exchanger 11. The heat pump unit is provided with a compressor 21, a first condenser 22, an expansion valve 23 and an evaporator 24 which are connected end to end in sequence by pipelines, the spray unit is provided with a water collecting tank 31 at the lower side of the plate heat exchanger 11 and a sprayer 32 at the first right tuyere 13, and the water collecting tank 31 and the sprayer 32 are connected by a pipeline provided with a circulating pump 33. Wherein, the fresh air flows through the second air channel of the plate heat exchanger 11 and the path of the evaporator 24 from left to right, and the return air flows through the first air channel of the plate heat exchanger 1 and the path of the first condenser 22 from right to left, and is provided with an exhaust duct.
The fresh air handling unit based on the hexagonal plate replacement is simple in structure, strong in functionality, good in stability, small in wind resistance, low in energy consumption and high in efficiency. In practical application, when fresh air and return air correspond to pass through the air delivery duct and the exhaust duct, sufficient heat exchange can be carried out in the plate heat exchanger 11, so that efficient heat recovery is realized, energy consumption is reduced, and unit energy efficiency ratio is improved. When the latent heat load of the fresh air is large, the shower unit sprays water into the first air channel of the plate heat exchanger 11, the return air can be in full heat exchange with the water, the heat exchange efficiency with the fresh air is improved due to the reduction of the return air temperature, and the shower unit and the plate heat exchanger 11 form an indirect heat insulation evaporation cooling system, so that the pretreatment effect on the fresh air can be effectively improved, and the functionality, stability and adaptability of the unit are enhanced. According to the invention, the hexagonal plate heat exchanger 11 is adopted, the two ends of the first air duct are correspondingly arranged on the upper left side and the upper right side of the plate heat exchanger 11, and the two ends of the second air duct are correspondingly arranged on the lower left side and the lower right side of the plate heat exchanger 11, so that on one hand, the structure is simplified, the air duct arrangement difficulty is reduced, on the other hand, the air duct direction changing amplitude is reduced, and compared with a heat recovery device formed by the existing double-plate heat exchanger, the wind resistance is effectively reduced, and the energy saving and consumption reduction effects are improved.
As an optimization scheme, in this embodiment, the front wall and the rear wall of the first air duct are correspondingly provided with the first fins 16 and the second fins 17 which are vertically and alternately distributed, and the first fins 16 and the second fins 17 adopt an arc structure with the middle parts lower than the two ends, and the first fins 16 and the second fins are alternately distributed in the vertical direction. According to the structure, the first fins 16 and the second fins 17 are arranged, so that the uniformity of distribution of return air in the first air channel is improved on the basis that the spraying function is not affected, the contact area is increased, and the heat exchange efficiency is improved. Similarly, in this embodiment, the third fins 18 and the fourth fins 19 are correspondingly disposed on the front wall and the rear wall of the second air duct, and the third fins 18 and the fourth fins 19 adopt an arc structure with the middle portions higher than the two ends, and are alternately disposed in the up-down direction. By arranging the third fins 18 and the fourth fins 19, the uniformity of the distribution of fresh air in the second air channel is improved, the contact area is increased, and the heat exchange efficiency is improved. In a specific embodiment, if the width of the first air duct and the second air duct is D1, and the width of the first fin 16, the second fin 17, the third fin 18 and the fourth fin 19 is D2, the present invention generally makes 1/2D1 < D2 < D1, so as to ensure the separation effect of the fins. In practical application, the invention sets a certain gradient on the upper side surfaces of the first fin 16 and the second fin 17 so as to ensure that spray water can smoothly flow to the bottom of the first air duct.
As an optimization, the present embodiment adds a second condenser 25 on the pipe between the first condenser 22 and the expansion valve 23 to the heat pump unit, and places the second condenser 25 in the air delivery duct and on the right side of the evaporator 24. The fresh air cooled and dehumidified by the second condenser 25 can be reheated to avoid too low fresh air temperature. Meanwhile, in the specific embodiment, the surface cooler 41 is arranged in the air delivery duct between the evaporator 24 and the plate heat exchanger 11, and in summer working conditions, the liquid inlet and the liquid outlet of the surface cooler 41 are connected with an external cold source through pipelines to form a circulation, so that the fresh air can be precooled and dehumidified, and the functionality and the dehumidification effect of the unit are enhanced; under the working condition in winter, the fresh air can be preheated by connecting the liquid inlet and the liquid outlet of the surface cooler 41 with an external heat source through pipelines to form a circulation, so as to achieve the purpose of energy conservation. It should be noted that, in practical application, a four-way switching valve (not shown in the figure) is disposed in a pipeline of the heat pump unit, so as to change the flow direction of the working medium into a flow direction through the four-way switching valve, thereby achieving the purpose of refrigeration/heating conversion.
In the present invention, as a specific embodiment, a blower 42 is provided in the air delivery duct at a position between the evaporator 24 and the second condenser 25, and an exhaust fan 51 is provided in the exhaust duct at a side of the inlet end. The air quantity can be effectively controlled through the air blower 42 and the exhaust fan 51, and the controllability and the stability of the unit are improved. Meanwhile, in the present embodiment, a fresh air strainer 43 and a fresh air fine filter 44 are provided in the air supply duct from left to right on the side at the inlet end, and a return air strainer 52 is provided in the air exhaust duct on the right side of the air exhaust fan 51. The fresh air can be subjected to coarse filtration through the fresh air coarse filter 43, and PM2.5 filtration through the fresh air fine filter 44, so that the air supply quality of the fresh air can be effectively verified; the return air is subjected to coarse filtration treatment through the return air coarse filter 52, so that dust in the return air can be prevented from entering the plate heat exchanger 11 to influence the heat exchange effect.
As an optimization scheme, in the present embodiment, a first air valve 45 is disposed in an air delivery duct between the plate heat exchanger 11 and the fresh air fine filter 44, an air supply bypass is disposed at the lower side of the plate heat exchanger 11, and the left end of the air supply bypass is communicated with the air delivery duct through a second air valve 46 at the lower side of the first air valve 45. Meanwhile, an exhaust bypass is arranged on the upper side of the plate heat exchanger 11, a third air valve 53 is arranged in the middle of the exhaust bypass, and two ends of the exhaust bypass are correspondingly communicated with exhaust channels on the left side and the right side of the plate heat exchanger 11. Through the above structure setting, the fresh air passage and the return air passage can be accurately controlled by utilizing the first air valve 45, the second air valve 46 and the third air valve 53, so that the unit is suitable for different working condition requirements in spring and autumn, summer and winter, the application range of the unit is enlarged, and the utilization rate of the unit is improved. In addition, in the present embodiment, a fourth air valve 47 is provided in the air delivery duct between the evaporator 24 and the blower 42, and the right end of the air delivery bypass is communicated with the air delivery duct through a fifth air valve 48 located below the fourth air valve 47. The convenience and accuracy of handling are improved by the four air valves 47 and the fifth air valve 48.
The above examples are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the invention as claimed, and various modifications made by those skilled in the art according to the technical solution of the present invention should fall within the scope of the invention as defined in the claims without departing from the design concept of the present invention.
Claims (8)
1. The utility model provides a fresh air handling unit based on hexagonal plate is traded, including casing and heat recovery unit, heat pump unit, the spraying unit of locating in the casing, its characterized in that, heat recovery unit is for front and back end is hexagonal plate heat exchanger (11) and locates the middle part of casing, be equipped with first wind channel and the second wind channel of following the direction alternation in plate heat exchanger (11), the both ends mouth in first wind channel corresponds for first left wind gap (12) and first right wind gap (13), first left wind gap (12) and first right wind gap (13) correspond and are in the upper left side and the upper right side of plate heat exchanger (11), the bottom in first wind channel is equipped with the through-water hole of interval distribution, the both ends mouth in second wind channel corresponds for second left wind gap (14) and second right wind gap (15), second left wind gap (14) and second right wind gap (15) are in the lower left side and the lower right side of plate heat exchanger (11) of correspondence, the heat pump unit includes compressor (21), first condenser (22), expansion valve (24) and evaporator (24) are located plate heat exchanger (11) through pipeline head and the upper right wind channel (32) are located through pipeline (31) in proper order, the water collector (32) are located to the water collector (32) in the lower side of the water collector (32), the return air flows through a first air channel of the plate heat exchanger (11) from right to left and a passage of the first condenser (22) from right to left; the front wall and the rear wall of the first air duct are correspondingly provided with a first fin (16) and a second fin (17) which are distributed at intervals up and down, the first fin (16) and the second fin (17) are in an arc shape with the middle part lower than two ends, and are alternately distributed in the up-down direction, the front wall and the rear wall of the second air duct are correspondingly provided with a third fin (18) and a fourth fin (19) which are distributed at intervals up and down, and the third fin (18) and the fourth fin (19) are in an arc shape with the middle part higher than two ends, and are alternately distributed in the up-down direction; the width of the first air channel and the second air channel is D1, the width of the first fin (16), the second fin (17), the third fin (18) and the fourth fin (19) is D2,1/2D1 is less than D2 and less than D1, and the upper side surfaces of the first fin (16) and the second fin (17) are provided with slopes.
2. A fresh air handling unit according to claim 1, wherein the heat pump unit further comprises a second condenser (25) arranged in the line between the first condenser (22) and the expansion valve (23), the second condenser (25) being located in the air delivery duct and to the right of the evaporator (24).
3. The fresh air handling unit based on hexagonal plate exchange according to claim 2, wherein a surface cooler (41) is arranged in an air delivery duct between the evaporator (24) and the plate heat exchanger (11), and a liquid inlet and a liquid outlet of the surface cooler (41) are connected with an external cold source or a heat source through pipelines.
4. A hexagonal plate based fresh air handling unit according to claim 3, wherein a blower (42) is provided in the air delivery duct at a position between the evaporator (24) and the second condenser (25), and an exhaust fan (51) is provided in the exhaust duct at a side of the inlet end.
5. The fresh air handling unit based on hexagonal plate exchange according to claim 4, wherein a fresh air strainer (43) and a fresh air fine filter (44) are arranged in the air delivery duct from left to right on one side of the inlet end, and a return air strainer (52) is arranged in the exhaust duct and on the right side of the exhaust fan (51).
6. The fresh air handling unit based on hexagonal plate exchange according to claim 5, wherein a first air valve (45) is arranged in an air delivery duct between the plate heat exchanger (11) and the fresh air fine filter (44), an air supply bypass is arranged at the lower side of the plate heat exchanger (11), and the air supply bypass is communicated with the air delivery duct through a second air valve (46) arranged at the lower side of the first air valve (45).
7. The fresh air handling unit based on hexagonal plate exchange according to claim 6, wherein an exhaust bypass is arranged on the upper side of the plate heat exchanger (11), a third air valve (53) is arranged in the middle of the exhaust bypass, and two ends of the exhaust bypass are correspondingly communicated with exhaust ducts on the left side and the right side of the plate heat exchanger (11).
8. The hexagonal plate exchange-based fresh air handling unit according to claim 7, wherein a fourth air valve (47) is arranged in the air delivery duct between the evaporator (24) and the blower (42), and the air delivery bypass is communicated with the air delivery duct through a fifth air valve (48) arranged on the lower side of the fourth air valve (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281794.XA CN114279028B (en) | 2021-11-01 | 2021-11-01 | Fresh air handling unit based on hexagonal plate replacement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281794.XA CN114279028B (en) | 2021-11-01 | 2021-11-01 | Fresh air handling unit based on hexagonal plate replacement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114279028A CN114279028A (en) | 2022-04-05 |
| CN114279028B true CN114279028B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111281794.XA Active CN114279028B (en) | 2021-11-01 | 2021-11-01 | Fresh air handling unit based on hexagonal plate replacement |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210787A (en) * | 2006-12-27 | 2008-07-02 | Lg电子株式会社 | Ventilating apparatus, heat exchange apparatus, and heat exchange element therefor |
| CN105444310A (en) * | 2015-12-30 | 2016-03-30 | 丛旭日 | Double-plate and double-cold-source intelligent air refresher unit |
| CN206321085U (en) * | 2016-12-17 | 2017-07-11 | 佛山市罗伯特环境科技有限公司 | Two-sided air channel heat exchanger core body |
| CN216977064U (en) * | 2021-11-01 | 2022-07-15 | 际高科技有限公司 | Fresh air handling unit based on hexagonal heat exchanger |
-
2021
- 2021-11-01 CN CN202111281794.XA patent/CN114279028B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210787A (en) * | 2006-12-27 | 2008-07-02 | Lg电子株式会社 | Ventilating apparatus, heat exchange apparatus, and heat exchange element therefor |
| CN105444310A (en) * | 2015-12-30 | 2016-03-30 | 丛旭日 | Double-plate and double-cold-source intelligent air refresher unit |
| CN206321085U (en) * | 2016-12-17 | 2017-07-11 | 佛山市罗伯特环境科技有限公司 | Two-sided air channel heat exchanger core body |
| CN216977064U (en) * | 2021-11-01 | 2022-07-15 | 际高科技有限公司 | Fresh air handling unit based on hexagonal heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN114279028A (en) | 2022-04-05 |
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