CN114279028A - Fresh air handling unit based on hexagonal plate changes - Google Patents
Fresh air handling unit based on hexagonal plate changes Download PDFInfo
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- CN114279028A CN114279028A CN202111281794.XA CN202111281794A CN114279028A CN 114279028 A CN114279028 A CN 114279028A CN 202111281794 A CN202111281794 A CN 202111281794A CN 114279028 A CN114279028 A CN 114279028A
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- 238000011084 recovery Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000007791 dehumidification Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change 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
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 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
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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 spraying unit, wherein the heat recovery unit is a plate heat exchanger, a first air duct and a second air duct which are alternately distributed are arranged in the plate heat exchanger, two ports of the first air duct are correspondingly positioned at the left upper side and the right upper side of the plate heat exchanger, the bottom of the first air duct is provided with a water through hole, two ports of the second air duct are correspondingly positioned at the left lower side and the right lower side of the plate heat exchanger, the heat pump unit comprises compressors which are sequentially connected end to end through pipelines, the spraying unit comprises a water collecting tank and a sprayer, the water collecting tank is connected with the sprayer through a pipeline provided with a circulating pump, a second air channel for fresh air to flow through the plate heat exchanger from left to right and a passage of the evaporator are provided with an air supply channel, and return air flows through the first air channel of the plate heat exchanger from right to left and a passage of the first condenser are provided with an exhaust channel. 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 exchange.
Background
In building energy-conservation and air conditioner field, need handle in order to satisfy the demand to the new trend usually, carry out cooling dehumidification to the air promptly in summer and handle, the winter festival adds thermal humidification to the air. The refrigeration equipment adopted in the field is mainly in a heat pump mode and comprises a compressor, an evaporator, a condenser, an expansion valve and the like, wherein in the operation process, a refrigeration working medium is converted between a gas state and a liquid state through the compressor and the expansion valve, on one hand, the refrigeration working medium releases heat at the condenser, and the heat is discharged through return air; on the other hand, the refrigerating working medium absorbs heat at the evaporator, so that the temperature of fresh air is reduced, and the purposes of cooling and dehumidification are achieved. However, the fresh air unit based on the heat pump has a low dehumidification capacity of unit electric energy, and for this reason, a double-cold-source fresh air unit is developed by those skilled in the art, for example, in the invention patent with the publication number of CN105444310B, on one hand, the dehumidification effect is improved by additionally arranging a surface air cooler, and on the other hand, the energy-saving purpose is achieved by arranging a heat recovery device composed of two plate heat exchangers, but the heat recovery device with this structure has the following problems in practical application: 1. the two parallel plate heat exchangers increase the unit volume and increase the difficulty of air duct arrangement; 2. because the flow directions of the two inner air ducts of the existing plate heat exchanger are mutually vertical, the turning amplitude of the air ducts in the unit is large, the wind resistance is large, and the energy-saving and consumption-reducing effects are influenced.
Disclosure of Invention
The invention aims to provide a fresh air handling unit based on hexagonal plate exchange, 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 invention provides a fresh air handling unit based on hexagonal plate heat exchange, which comprises a shell, and a heat recovery unit, a heat pump unit and a spraying unit which are arranged in the shell, and is characterized in that the heat recovery unit is a plate heat exchanger with front and back ends in a hexagonal shape and is arranged in the middle of the shell, a first air duct and a second air duct which are alternately distributed along the front and back direction are arranged in the plate heat exchanger, two ports of the first air duct are correspondingly a first left air port and a first right air port, the first left air port and the first right air port are correspondingly arranged at 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 duct, two ports of the second air duct are correspondingly a second left air port and a second right air port, the second left air port and the second right air port are correspondingly arranged at the left lower side and the right lower side of the plate heat exchanger, and the heat pump unit comprises a compressor, a heat pump, a heat recovery unit, a heat pump unit and a heat pump unit, a heat recovery unit, a heat pump unit and a spraying unit and a heat pump unit are arranged in the shell, and a heat pump unit are arranged in the heat recovery unit, and a heat pump unit are arranged in the heat pump unit, and a heat exchanger, and a heat pump unit are arranged in the heat pump unit, and a heat exchanger, and a heat pump unit are arranged in a heat pump unit, and a heat pump unit, First condenser, expansion valve and evaporimeter, spray the unit including locating the water catch bowl of plate heat exchanger downside and locate the sprayer of first right wind gap department, water catch bowl and sprayer are through the tube coupling that is equipped with the circulating pump, and the second wind channel that new trend flows through plate heat exchanger from left to right and the route of evaporimeter are equipped with the supply-air duct, and the first wind channel that the return air flowed through plate heat exchanger from right to left and the route of first condenser are equipped with the exhaust duct.
Further, the invention relates to a ventilator unit based on hexagonal plate exchange, wherein the front wall and the rear wall of the first air duct are correspondingly provided with a first fin and a second fin which are distributed at intervals up and down, the first fin and the second fin are arc-shaped, the middle parts of which are lower than the two ends, and are alternatively distributed up and down, the front wall and the rear wall of the second air duct are correspondingly provided with a third fin and a fourth fin which are distributed at intervals up and down, and the middle parts of the third fin and the fourth fin are arc-shaped, the middle parts of which are higher than the two ends, and are alternatively distributed up and down.
Furthermore, the fresh air handling unit based on the hexagonal plate exchange is characterized in that the width of the first air duct and the width of the second air duct are D1, the width of the first fin, the width of the second fin, the width of the third fin and the width of the fourth fin are D2, the width of 1/2D1 is more than D2 and less than D1, and the upper side surfaces of the first fin and the second fin are provided with slopes.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate exchange, 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 supply duct and 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 supply duct 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 exchange, wherein a blower is arranged in the air supply duct and between the evaporator and the second condenser, and an exhaust fan is arranged in the exhaust duct and on one side of the inlet end.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate exchange, wherein a fresh air coarse filter and a fresh air fine filter are arranged on one side of the air supply duct and at the inlet end from left to right, and a return air coarse filter is arranged in the air exhaust duct and at 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 supply channel between a plate heat exchanger and a fresh air fine filter, an air supply bypass is arranged at the lower side of the plate heat exchanger, and the air supply bypass is communicated with the air supply channel through a second air valve positioned at 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 air exhaust bypass is arranged on the upper side of the plate heat exchanger, a third air valve is arranged in the middle of the air exhaust bypass, and two ends of the air exhaust bypass are correspondingly communicated with the air exhaust ducts on the left side and the right side of the plate heat exchanger.
Furthermore, the invention relates to a fresh air handling unit based on hexagonal plate exchange, wherein a fourth air valve is arranged in an air supply channel between an evaporator and a blower, and the air supply bypass is communicated with the air supply channel through a fifth air valve positioned on the lower side of the fourth air valve.
Compared with the prior art, the fresh air handling unit based on the hexagonal plate exchange has the following advantages: the invention adopts a plate heat exchanger with hexagonal front and back ends by arranging a shell and a heat recovery unit, a heat pump unit and a spraying unit which are arranged in the shell, the plate heat exchanger is arranged in the middle of the shell, a first air duct and a second air duct which are alternately distributed along the front and back direction are arranged in the plate heat exchanger, two ports of the first air duct correspond to a first left air port and a first right air port, the first left air port and the first right air port 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 duct, two ports of the second air duct correspond to a second left air port and a second right air port, the second left air port and the second right air port are correspondingly arranged on the left lower side and the right lower side of the plate heat exchanger, and 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 through pipelines, the spraying unit is arranged on a water collecting tank on the lower side of the plate heat exchanger and a sprayer at the first right air port, the water collecting tank is connected with the sprayer through a pipeline provided with a circulating pump, wherein fresh air flows through a second air channel of the plate heat exchanger and a passage of the evaporator from left to right, an air supply channel is arranged, and return air flows through the first air channel of the plate heat exchanger and a passage of the first condenser from right to left, and an air exhaust channel is arranged. Therefore, the fresh air unit based on the hexagonal plate heat exchanger is simple in structure, strong in functionality, good in stability, small in wind resistance, low in energy consumption and high in efficiency, when the fresh air and the return air correspondingly pass through the air supply duct and the air exhaust duct in practical application, the full heat exchange can be carried out in the plate heat exchanger, the efficient heat recovery is realized, the energy consumption is reduced, and the energy efficiency ratio of the unit is improved; when new trend latent heat load is great, through spraying the water in the unit to plate heat exchanger's the first wind channel, the return air can carry out the total heat exchange with water contact, the reduction of return air temperature improved with the heat exchange efficiency of new trend, spray unit and plate heat exchanger this moment and constitute indirect adiabatic evaporation cooling system, can effectively improve the preliminary treatment effect to the new trend, strengthened the functional, stability and the adaptability of unit. According to the invention, the hexagonal plate heat exchanger is adopted, the two ports of the first air duct are correspondingly arranged at the left upper side and the right upper side of the plate heat exchanger, and the two ports of the second air duct are correspondingly arranged at the left lower side and the right lower side of the plate heat exchanger, so that the structure is simplified, the air duct arrangement difficulty is reduced, the air duct turning amplitude is reduced, and compared with a heat recovery device formed by the existing double-plate heat exchanger, the heat recovery device can effectively reduce the wind resistance and improve the energy-saving and consumption-reducing effects.
The following describes a ventilator unit based on hexagonal plate exchange in detail with reference to the embodiments shown in the drawings.
Drawings
FIG. 1 is a schematic structural diagram of a ventilator unit based on hexagonal plate exchange according to the present invention;
fig. 2 is a front view of a plate heat exchanger according to the invention;
fig. 3 is a top view of a plate heat exchanger according to the invention;
fig. 4 is a first perspective view of a plate heat exchanger according to the present invention;
fig. 5 is a bottom view of a plate heat exchanger according to the invention;
fig. 6 is a second perspective view of a plate heat exchanger according to the present invention;
FIG. 7 is a view taken along line A-A of FIG. 2;
FIG. 8 is a left side view of the plate heat exchanger of the present invention;
FIG. 9 is a right side view of the plate heat exchanger of the present invention;
FIG. 10 is a view taken along line B-B of FIG. 3;
FIG. 11 is a view taken along line C-C of FIG. 3;
FIG. 12 is an enlarged view of a portion of FIG. 4 at position D;
FIG. 13 is an enlarged view of a portion of FIG. 6 at position E;
fig. 14 is a partial enlarged view of the position F in fig. 7.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for easy understanding, and do not limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 to 14, the present invention relates to a fresh air handling unit based on hexagonal plate exchange, which comprises a housing, and a heat recovery unit, a heat pump unit, and a spraying unit disposed in the housing. The heat recovery unit adopts a plate heat exchanger 11 with hexagonal front and back ends and is arranged in the middle of the shell, a first air duct and a second air duct which are alternately distributed along the front and back direction are arranged in the plate heat exchanger 11, two ports of the first air duct correspond to 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 correspondingly arranged on the left upper side and the right upper side of the plate heat exchanger 11, and water through holes which are distributed at intervals are arranged at the bottom of the first air duct; two ports of the second air duct are 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 through pipelines, the spraying unit is provided with a water collecting tank 31 positioned at the lower side of the plate heat exchanger 11 and a sprayer 32 positioned at the first right air port 13, and the water collecting tank 31 and the sprayer 32 are connected through a pipeline provided with a circulating pump 33. Wherein, the passage of the fresh air flowing through the second air duct of the plate heat exchanger 11 and the evaporator 24 from left to right is provided with an air supply duct, and the passage of the return air flowing through the first air duct of the plate heat exchanger 1 and the first condenser 22 from right to left is provided with an air exhaust duct.
The fresh air handling unit based on the hexagonal plate exchange 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 new trend and return air correspond through supply-air duct and exhaust duct, can carry out abundant heat exchange in plate heat exchanger 11, realized high-efficient heat recovery, reduced the energy consumption, improved the unit energy efficiency ratio. When new trend latent heat load is great, through spraying the water in the unit to plate heat exchanger 11's first wind channel, the return air can carry out the total heat exchange with water contact, the reduction of return air temperature improved with the heat exchange efficiency of new trend, spray unit and plate heat exchanger 11 this moment and constitute indirect adiabatic evaporation cooling system, can effectively improve the preliminary treatment effect to the new trend, strengthened the functional, stability and the adaptability of unit. According to the invention, the hexagonal plate type heat exchanger 11 is adopted, the two ports of the first air duct are correspondingly arranged at the left upper side and the right upper side of the plate type heat exchanger 11, and the two ports of the second air duct are correspondingly arranged at the left lower side and the right lower side of the plate type heat exchanger 11, so that the structure is simplified, the air duct arrangement difficulty is reduced, the air duct turning amplitude is reduced, compared with a heat recovery device formed by the existing double-plate type heat exchanger, the wind resistance is effectively reduced, and the energy-saving and consumption-reducing effects are improved.
As an optimized scheme, in the present embodiment, the first fins 16 and the second fins 17 are correspondingly disposed on the front wall and the rear wall of the first air duct at intervals from top to bottom, and the first fins 16 and the second fins 17 adopt an arc structure with a middle portion lower than two ends, and are alternately disposed in the up-down direction. According to the structure, the first fins 16 and the second fins 17 are arranged, so that the distribution uniformity of return air in the first air channel is improved on the basis of not influencing the spraying function, the contact area is increased, and the heat exchange efficiency is improved. Similarly, in the present 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 at intervals from top to bottom, and the third fins 18 and the fourth fins 19 adopt an arc structure with the middle portion higher than the two ends, and are alternately disposed in the up-down direction. Through setting up third fin 18 and fourth fin 19, improved the homogeneity that the new trend distributes in the second wind channel, increased area of contact, improved heat exchange efficiency. 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 invention usually makes 1/2D1 < D2 < D1 to ensure the separation effect of the fins. In practical application, the upper sides of the first fins 16 and the second fins 17 are provided with a certain gradient to ensure that the spray water can smoothly flow to the bottom of the first air duct.
As an optimized solution, the present embodiment adds a second condenser 25 to the heat pump unit in the line between the first condenser 22 and the expansion valve 23, and the second condenser 25 is provided in the air delivery duct on the right side of the evaporator 24. The fresh air after cooling and dehumidification can be reheated through the second condenser 25 to avoid the fresh air temperature to be too low. Meanwhile, in the embodiment, the surface cooler 41 is arranged in the air supply duct between the evaporator 24 and the plate heat exchanger 11, and under the working condition of summer, the liquid inlet and the liquid outlet of the surface cooler 41 are connected with an external cold source through pipelines to form 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 liquid inlet and the liquid outlet of the surface cooler 41 are connected with an external heat source through pipelines to form circulation, and the fresh air can be preheated to achieve the purpose of energy conservation. It should be noted that, in practical applications, a four-way switching valve (not shown in the figure) is disposed in the pipeline of the heat pump unit, so as to change the flow direction of the working medium by the four-way switching valve, thereby achieving the purpose of refrigeration/heating switching.
In the present invention, as a specific embodiment, a blower 42 is provided in a position between the evaporator 24 and the second condenser 25 in the air blowing duct, and an exhaust fan 51 is provided in the exhaust duct on the side of the inlet end. The air quantity can be effectively controlled through the 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 coarse filter 43 and a fresh air fine filter 44 are provided in the supply air duct and on the side of the inlet end from left to right, and a return air coarse filter 52 is provided in the exhaust air duct and on the right side of the exhaust fan 51. Fresh air can be roughly filtered through the fresh air rough filter 43, and PM2.5 is filtered through the fresh air fine filter 44, so that the air supply quality of the fresh air can be effectively proved; 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 optimized scheme, in the present embodiment, a first air valve 45 is disposed in the air supply duct between the plate heat exchanger 11 and the fresh air fine filter 44, an air supply bypass is disposed below the plate heat exchanger 11, and the left end of the air supply bypass is communicated with the air supply duct through a second air valve 46 disposed below 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 ducts on the left side and the right side of the plate heat exchanger 11. Through the structure setting, the fresh air channel and the return air channel 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 can adapt to different working condition requirements in spring and autumn, summer and winter, the application range of the unit is expanded, and the utilization rate of the unit is improved. In the present embodiment, a fourth air valve 47 is provided in the air duct between the evaporator 24 and the blower 42, and the right end of the air supply bypass is communicated with the air duct through a fifth air valve 48 located below the fourth air valve 47. The convenience and accuracy of the manipulation are improved by the four air valves 47 and the fifth air valve 48.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.
Claims (10)
1. A fresh air handling unit based on hexagonal plate exchange comprises a shell, a heat recovery unit, a heat pump unit and a spraying unit, wherein the heat recovery unit, the heat pump unit and the spraying unit are arranged in the shell, the heat recovery unit is a plate heat exchanger (11) with hexagonal front and back ends and is arranged in the middle of the shell, a first air duct and a second air duct which are alternately distributed in the front and back direction are arranged in the plate heat exchanger (11), two ports of the first air duct are correspondingly 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 correspondingly arranged on the left upper side and the right upper side of the plate heat exchanger (11), water through holes which are distributed at intervals are arranged at the bottom of the first air duct, two ports of the second air duct are correspondingly a second left air port (14) and a second right air port (15), 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 comprises a compressor (21), a first condenser (22), an expansion valve (23) and an evaporator (24) which are sequentially connected end to end through pipelines, the spraying unit comprises a water collecting tank (31) arranged on the lower side of the plate heat exchanger (11) and a sprayer (32) arranged at a first right air port (13), the water collecting tank (31) and the sprayer (32) are connected through a pipeline provided with a circulating pump (33), fresh air flows through a second air channel of the plate heat exchanger (11) from left to right and a passage of the evaporator (24) from left to right to be provided with an air supply channel, and return air flows through the first air channel of the plate heat exchanger (1) from right to left and the passage of the first condenser (22) from right to left to be provided with an exhaust channel.
2. The ventilator unit based on hexagonal plate exchange according to claim 1, wherein the front and rear walls 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 arc-shaped with the middle part lower than the two ends and are alternatively distributed up and down, the front and rear walls 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 arc-shaped with the middle part higher than the two ends and are alternatively distributed up and down.
3. A ventilator group based on hexagonal plate exchange according to claim 2, characterized in that the width of the first wind channel and the second wind channel is D1, the width of the first fin (16), the width of the second fin (17), the width of the third fin (18) and the width of the fourth fin (19) are D2, 1/2D1 < D2 < D1, and the upper side of the first fin (16) and the upper side of the second fin (17) are provided with slopes.
4. A set of ventilator air-handling units based on hexagonal plate exchange according to claim 3, characterized in that the heat pump unit further comprises a second condenser (25) placed in the line between the first condenser (22) and the expansion valve (23), the second condenser (25) being placed in the supply air duct and to the right of the evaporator (24).
5. The ventilator unit based on hexagonal plate exchange of claim 4, wherein the air supply channel between the evaporator (24) and the plate heat exchanger (11) is provided with a surface air cooler (41), and the liquid inlet and the liquid outlet of the surface air cooler (41) are connected with an external cold source or heat source through pipelines.
6. A ventilator unit based on hexagonal plate exchange according to claim 5 characterized in that a blower (42) is provided in the air supply duct between the evaporator (24) and the second condenser (25), and an exhaust fan (51) is provided in the exhaust duct on the side of the inlet end.
7. Fresh air handling unit based on hexagonal plate exchange according to claim 6, characterized in that the supply air duct is provided with a fresh air coarse filter (43) and a fresh air fine filter (44) at the inlet end side from left to right, and the exhaust air duct is provided with a return air coarse filter (52) at the exhaust fan (51) right.
8. The fresh air handling unit based on hexagonal plate exchange of claim 7, wherein a first air valve (45) is arranged in the air supply channel 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 supply channel through a second air valve (46) at the lower side of the first air valve (45).
9. The fresh air handling unit based on hexagonal plate exchange of claim 8, wherein the upper side of the plate heat exchanger (11) is provided with an exhaust bypass, the middle of the exhaust bypass is provided with a third air valve (53), and two ends of the exhaust bypass are correspondingly communicated with the exhaust ducts on the left and right sides of the plate heat exchanger (11).
10. A set of ventilator units based on hexagonal plates according to claim 9, characterized in that a fourth air valve (47) is provided in the air supply channel between the evaporator (24) and the blower (42), and the air supply bypass is connected to the air supply channel through a fifth air valve (48) at the lower side of the fourth air valve (47).
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CN202111281794.XA CN114279028B (en) | 2021-11-01 | 2021-11-01 | Fresh air handling unit based on hexagonal plate replacement |
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CN202111281794.XA CN114279028B (en) | 2021-11-01 | 2021-11-01 | Fresh air handling unit based on hexagonal plate replacement |
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CN114279028B CN114279028B (en) | 2024-02-02 |
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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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