CN221036015U - Water-cooling direct-expansion dehumidifier unit - Google Patents
Water-cooling direct-expansion dehumidifier unit Download PDFInfo
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- CN221036015U CN221036015U CN202322707430.4U CN202322707430U CN221036015U CN 221036015 U CN221036015 U CN 221036015U CN 202322707430 U CN202322707430 U CN 202322707430U CN 221036015 U CN221036015 U CN 221036015U
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- 238000001816 cooling Methods 0.000 title claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000004146 energy storage Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 25
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000003570 air Substances 0.000 abstract description 59
- 238000010248 power generation Methods 0.000 abstract description 13
- 238000007791 dehumidification Methods 0.000 abstract description 6
- 239000012080 ambient air Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000005057 refrigeration Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 13
- 239000003507 refrigerant Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a water-cooling direct-expansion dehumidifier unit which comprises a shell, wherein a water inlet, a water outlet, a return air inlet and an air supply outlet are formed in the shell, and the water inlet and the water outlet are used for being connected with a reservoir of an energy storage power station; the shell is internally provided with a precooling mechanism, a cooling and dehumidifying mechanism and a fan, the precooling mechanism comprises a water-cooling heat exchanger, the cooling and dehumidifying mechanism comprises a direct expansion heat exchanger, and the air return port, the water-cooling heat exchanger, the direct expansion heat exchanger, the fan and the air supply port are sequentially arranged along the air inlet and outlet direction; the input end of the water-cooling heat exchanger is connected with the water inlet, the output end of the water-cooling heat exchanger is connected with the cooling and dehumidifying mechanism, and the output end of the water-cooling heat exchanger and the output end of the precooling mechanism are respectively connected with the water outlet; the water-cooling refrigeration dehumidification unit disclosed by the utility model can fully utilize the cold energy of the reservoir of the energy storage power station to pre-cool, cool and dehumidify the ambient air of the power generation plant, and has the advantage of low working energy consumption.
Description
Technical Field
The utility model relates to the technical field of heating ventilation and air conditioning, in particular to a water-cooling direct expansion dehumidification unit.
Background
The power generation factory of the pumped storage power station is usually an underground building, and the depth is up to more than 100 m; because a large number of electromechanical heating devices are arranged in the power generation plant, the problem of large heating value exists, and the air quality of the internal environment of the power generation plant is poor; further, because the power generation plant is located underground, the ambient air is moist, so that the surface of equipment pipelines in the plant is extremely easy to form dew, and the pipeline is rusted or damaged.
In order to solve the problems of large heat productivity and air humidity of electromechanical equipment in a pumped storage power station power generation plant and create environmental conditions meeting the requirements of operation safety, personnel comfort and fresh air quantity of the electromechanical equipment, a reasonable ventilation air conditioning system is required to be arranged to maintain a good environment when the underground power generation plant works.
The ventilation air conditioning system commonly used in the power generation plant of the pumped storage power station comprises an air treatment unit and a water chilling unit, wherein the air treatment unit is arranged at the top of the power generation plant and is used for cooling and dehumidifying air; the cooling water set is connected with the air treatment unit and is used for providing low-temperature chilled water for the air treatment unit to pre-cool the air, and the ventilation air conditioning system is additionally provided with a cooling water host and a cooling tower to realize the supply of the low-temperature chilled water, so that the transportation cost and the installation cost of the equipment are high, and the energy consumption for preparing the low-temperature chilled water is high.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of utility model
In view of the shortcomings of the prior art, the utility model aims to provide a water-cooled direct expansion dehumidifier unit which has the advantages of low working energy consumption and low transportation and installation costs.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The water-cooling direct expansion dehumidifier unit comprises a shell, wherein a water inlet, a water outlet, an air return opening and an air supply opening are formed in the shell, and the water inlet and the water outlet are used for being connected with a reservoir of an energy storage power station; the shell is internally provided with a precooling mechanism, a cooling and dehumidifying mechanism and a fan, the precooling mechanism comprises a water-cooling heat exchanger, the cooling and dehumidifying mechanism comprises a direct expansion heat exchanger, and the air return port, the water-cooling heat exchanger, the direct expansion heat exchanger, the fan and the air supply port are sequentially arranged along the air inlet and outlet direction; the input end of the water-cooling heat exchanger is connected with the water inlet, the output end of the water-cooling heat exchanger is connected with the cooling and dehumidifying mechanism, and the output end of the water-cooling heat exchanger and the output end of the precooling mechanism are respectively connected with the water outlet.
In the water-cooled direct expansion dehumidifier unit, the cooling and dehumidifying mechanism further comprises a water-cooled condenser, a compression part and a throttling part, wherein the output end of the direct expansion heat exchanger is connected with the input end of the water-cooled condenser through the compression part, and the output end of the water-cooled condenser is connected with the input end of the direct expansion heat exchanger through the throttling part; the output end of the water-cooling heat exchanger is connected with the input end of the water-cooling condenser.
In the water-cooled direct expansion dehumidifier unit, the compression part comprises a compressor, an oil separator and a gas-liquid separator, wherein the output end of the direct expansion heat exchanger, the gas-liquid separator, the compressor, the oil separator and the input end of the water-cooled condenser are sequentially connected, and the output end of the oil separator is also connected with the input end of the gas-liquid separator.
In the water-cooled direct expansion dehumidifier unit, the throttling part comprises an expansion valve, an electromagnetic valve and a liquid reservoir, and the output end of the water-cooled condenser, the liquid reservoir, the electromagnetic valve, the expansion valve and the input end of the direct expansion heat exchanger are sequentially connected.
In the water-cooled direct expansion dehumidifier unit, the precooling mechanism further comprises a three-way valve and an output pipeline, the water-cooled heat exchanger is respectively connected with the input end of the water-cooled condenser and the water outlet through the three-way valve, and the output end of the water-cooled condenser is connected with the water outlet through the output pipeline.
In the water-cooled direct expansion dehumidifier unit, the precooling mechanism further comprises a first temperature sensor, a second temperature sensor and a third temperature sensor, wherein the first temperature sensor is used for detecting the water inlet temperature of the water inlet, the second temperature sensor is used for detecting the cold water temperature of the output end of the water-cooled heat exchanger, and the third temperature sensor is arranged on the output pipeline and used for detecting the cold water temperature of the output end of the water-cooled condenser.
The water-cooling direct expansion dehumidifier unit further comprises an air filter, wherein the air filter is positioned between the return air inlet and the water-cooling heat exchanger.
The water-cooled direct expansion dehumidifier unit also comprises a first temperature and humidity sensor, a second temperature and humidity sensor and a third temperature and humidity sensor, wherein the first temperature and humidity sensor is used for detecting the temperature and humidity of air output by the air filter, the second temperature and humidity sensor is used for detecting the temperature and humidity of air output by the water-cooled heat exchanger, and the third temperature and humidity sensor is used for detecting the temperature and humidity of air output by the direct expansion heat exchanger.
The beneficial effects are that:
the utility model provides a water-cooling direct-expansion dehumidifier unit which can fully utilize the cold energy of a reservoir of an energy storage power station to pre-cool, cool and dehumidify the ambient air of a power generation plant and has the advantage of low working energy consumption; and because the low-temperature chilled water for realizing heat exchange is directly provided by the reservoir of the energy storage power station, a cooling tower and a water chilling unit are not required to be additionally arranged, and the transportation cost and the installation cost are reduced.
Drawings
FIG. 1 is a schematic diagram of a water-cooled direct-expansion dehumidifier unit provided by the utility model;
FIG. 2 is a system structural diagram of the water-cooled direct-expansion dehumidifier unit provided by the utility model.
Description of main reference numerals: 1-shell, 11-water inlet, 12-water outlet, 13-return air inlet, 14-air supply outlet, 21-water-cooled heat exchanger, 22-three-way valve, 23-first temperature sensor, 24-second temperature sensor, 25-third temperature sensor, 31-direct expansion heat exchanger, 32-water-cooled condenser, 33-gas-liquid separator, 34-compressor, 35-oil separator, 36-reservoir, 37-solenoid valve, 38-expansion valve, 41-fan, 42-air filter, 43-first temperature and humidity sensor, 44-second temperature and humidity sensor, 45-third temperature and humidity sensor, 5-reservoir.
Detailed Description
The utility model provides a water-cooling direct-expansion dehumidifier unit, which is used for making the purposes, technical schemes and effects of the utility model clearer and more definite, and is further described in detail below by referring to the accompanying drawings and examples.
In the description of the present utility model, it should be understood that the terms "mounted," "connected," and the like should be construed broadly, and that the specific meaning of the terms in the present utility model may be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 and 2, the utility model provides a water-cooling direct expansion dehumidifier unit, which comprises a shell 1, wherein a water inlet 11, a water outlet 12, a return air inlet 13 and an air supply outlet 14 are formed in the shell 1, and the water inlet 11 and the water outlet 12 are used for being connected with a reservoir 5 of an energy storage power station; a precooling mechanism, a cooling and dehumidifying mechanism and a fan 41 are arranged in the shell 1, the precooling mechanism comprises a water-cooling heat exchanger 21, the cooling and dehumidifying mechanism comprises a direct expansion heat exchanger 31, and the return air inlet 13, the water-cooling heat exchanger 21, the direct expansion heat exchanger 31, the fan 41 and the air supply outlet 14 are sequentially arranged along the air inlet and outlet direction; the input end of the water-cooling heat exchanger 21 is connected with the water inlet 11, the output end of the water-cooling heat exchanger 21 is connected with the cooling and dehumidifying mechanism, and the output end of the water-cooling heat exchanger 21 and the output end of the precooling mechanism are respectively connected with the water outlet 12.
The energy storage power station reservoir 5 is a natural low-temperature water reservoir 5, the water temperature of the stored water is kept below 12 ℃ throughout the year, the air of the power generation plant can be precooled, and the air treatment cold load is greatly reduced; the application discloses a water-cooling direct-expansion dehumidifier unit which can fully utilize the cold energy of a reservoir 5 of an energy storage power station to pre-cool, cool and dehumidify the ambient air of a power generation plant, achieve the purposes of cooling and deep dehumidification, and has the advantages of low working energy consumption and remarkable energy-saving effect; and because the low-temperature chilled water for realizing heat exchange is directly provided by the reservoir 5 of the energy storage power station, a cooling tower and a water chilling unit are not required to be additionally arranged, the transportation cost and the installation cost are reduced, the installation positions of the cooling tower and the water chilling unit are not required to be considered, the installation difficulty is reduced, and the installation flexibility is improved.
In this embodiment, the return air of the power plant enters the housing 1 through the return air inlet 13, and is subjected to heat exchange with the water in the reservoir 5 through the water-cooled heat exchanger 21 to achieve the purpose of pre-cooling, and then is subjected to deep dehumidification through the direct expansion heat exchanger 31, and is returned to the environment of the power plant through the fan 41 and the air supply outlet 14.
Further, referring to fig. 1 and 2, the cooling and dehumidifying mechanism further includes a water-cooled condenser 32, a compression portion and a throttling portion, wherein an output end of the direct expansion heat exchanger 31 is connected with an input end of the water-cooled condenser 32 through the compression portion, and an output end of the water-cooled condenser 32 is connected with an input end of the direct expansion heat exchanger 31 through the throttling portion; the output end of the water-cooled heat exchanger 21 is connected with the input end of the water-cooled condenser 32.
Further, referring to fig. 1 and 2, the compression portion includes a compressor 34, an oil separator 35, and a gas-liquid separator 33, the output end of the direct expansion heat exchanger 31, the gas-liquid separator 33, the compressor 34, the oil separator 35, and the input end of the water-cooled condenser 32 are sequentially connected, and the output end of the oil separator 35 is further connected with the input end of the gas-liquid separator 33.
In this embodiment, the output end of the oil separator 35 is connected to the input end of the gas-liquid separator 33, and during the operation of the compressor 34, part of the lubricating oil on the cylinder wall of the compressor 34 is inevitably changed into oil vapor and oil droplet particles and refrigerant vapor are discharged together due to the effect of high temperature; when the lubricating oil enters the water-cooled condenser 32 and the direct expansion heat exchanger 31 together with the refrigerant, the lubricating oil is condensed into an oil film on the heat transfer wall surface, so that the heat resistance is increased, the heat transfer effect of the water-cooled condenser 32 and the direct expansion heat exchanger 31 is reduced, and the refrigerating effect is reduced; therefore, the provision of the oil separator 35 recovers the lubricating oil carried by the refrigerant, and outputs the recovered lubricating oil to the gas-liquid separator 33, so that the lubricating oil returns to the compressor 34 following the refrigerant gas output from the gas-liquid separator 33, thereby improving the stability and reliability of the compressor 34 in operation.
Further, referring to fig. 2, the throttling part includes an expansion valve 38, a solenoid valve 37 and a liquid reservoir 36, and the output end of the water-cooled condenser 32, the liquid reservoir 36, the solenoid valve 37, the expansion valve 38 and the input end of the direct expansion heat exchanger 31 are sequentially connected.
In the present embodiment, the electromagnetic valve 37 is used for adjusting the flow rate of the refrigerant input to the direct expansion heat exchanger 31 to adjust the cooling and dehumidifying effects of the direct expansion heat exchanger 31; the accumulator 36 is used to prevent liquid refrigerant from flowing into the compressor 34 to generate liquid impact, and to improve stability and safety of the compressor 34 during operation.
In this embodiment, the high-temperature and high-pressure refrigerant gas discharged from the compressor 34 is recovered by the oil separator 35, enters the water-cooled condenser 32, exchanges heat with the heated water in the reservoir 5 output by the water-cooled heat exchanger 21 to generate a high-pressure and low-temperature liquid refrigerant, then sequentially enters the liquid accumulator 36, the electromagnetic valve 37 and the expansion valve 38, respectively, after being throttled by the expansion valve 38, the refrigerant becomes a low-temperature and low-pressure liquid refrigerant, then enters the direct expansion heat exchanger 31, exchanges heat with the precooled air output by the water-cooled heat exchanger 21, deeply cools and dehumidifies the air, and the refrigerant is evaporated in the direct expansion heat exchanger 31 to absorb heat, processed by the gas-liquid separator 33 and then returns to the compressor 34.
Further, referring to fig. 2, the precooling mechanism further includes a three-way valve 22 and an output pipeline, the water-cooled heat exchanger 21 is connected to the input end of the water-cooled condenser 32 and the water outlet 12 through the three-way valve 22, and the output end of the water-cooled condenser 32 is connected to the water outlet 12 through the output pipeline.
In the embodiment, low-temperature chilled water in the reservoir 5 of the energy storage power station enters the water-cooling heat exchanger 21 through the water inlet 11 and exchanges heat with air, so that precooling treatment of return air of the power generation plant is realized; after heat exchange between water in the reservoir 5 and return air, the water temperature rises, a part of water is discharged from the water outlet 12 through the three-way valve 22, the other part of water enters the water-cooled condenser 32 to exchange heat with the refrigerant output by the compressor 34, and the water returns to the reservoir 5 through the output pipeline and the water outlet 12 after taking away the condensation heat of the cooling and dehumidifying mechanism.
In this embodiment, the opening angle of the three-way valve 22 is adjusted to adjust the flow rate of the water entering the reservoir 5 of the water-cooled condenser 32, so as to ensure the stable operation of the cooling and dehumidifying mechanism.
Further, referring to fig. 2, the pre-cooling mechanism further includes a first temperature sensor 23, a second temperature sensor 24 and a third temperature sensor 25, where the first temperature sensor 23 is disposed at an output end of the water inlet 11 and is used for detecting a water inlet temperature of the water inlet 11, the second temperature sensor 24 is disposed at an output end of the water-cooling heat exchanger 21 and is used for detecting a cold water temperature of an output end of the water-cooling heat exchanger 21, and the third temperature sensor 25 is disposed on the output pipeline and is used for detecting a cold water temperature of an output end of the water-cooling condenser 32.
In this embodiment, the opening angle of the three-way valve 22 can be adjusted according to the real-time inlet water temperature fed back by the first temperature sensor 23, the real-time first outlet water temperature fed back by the second temperature sensor 24, and the real-time third outlet water temperature fed back by the third temperature sensor 25, so as to adjust the flow of water entering the reservoir 5 of the water-cooled condenser 32, i.e. adjust the heat exchange effect of the water-cooled condenser 32, and ensure the stable operation of the cooling and dehumidifying mechanism.
Further, referring to fig. 1 and 2, the water-cooled direct expansion dehumidifier unit further includes an air filter 42, and the air filter 42 is located between the return air inlet 13 and the water-cooled heat exchanger 21.
In this embodiment, the air filter 42 is provided to filter the incoming return air of the power plant, so that the air quality of the power plant can be effectively improved, and the ambient air of the power plant can meet the comfort requirement of personnel.
Further, referring to fig. 2, the water-cooled direct expansion dehumidifier unit further includes a first temperature and humidity sensor 43, a second temperature and humidity sensor 44, and a third temperature and humidity sensor 45, where the first temperature and humidity sensor 43 is disposed on the air outlet side of the air filter 42, and is configured to detect the temperature and humidity of the air output by the air filter 42; the second temperature and humidity sensor 44 is disposed at the air outlet side of the water-cooled heat exchanger, and is used for detecting the temperature and humidity of the air output by the water-cooled heat exchanger; the third temperature and humidity sensor is arranged on the air outlet side of the direct expansion heat exchanger and used for detecting the temperature and humidity of air output by the direct expansion heat exchanger.
In this embodiment, whether the air that the water-cooled direct expansion dehumidification unit output meets the travelling comfort requirement of environment can be judged according to the real-time temperature and the real-time humidity of first temperature and humidity sensor, second temperature and humidity sensor and third temperature and humidity sensor feedback to the operating condition of adjustment three-way valve and cooling dehumidification mechanism improves user's use experience.
It will be understood that equivalents and modifications will occur to those skilled in the art based on the present utility model and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model.
Claims (8)
1. The water-cooling direct expansion dehumidifier unit is characterized by comprising a shell, wherein a water inlet, a water outlet, an air return opening and an air supply opening are formed in the shell, and the water inlet and the water outlet are used for being connected with a reservoir of an energy storage power station; the shell is internally provided with a precooling mechanism, a cooling and dehumidifying mechanism and a fan, the precooling mechanism comprises a water-cooling heat exchanger, the cooling and dehumidifying mechanism comprises a direct expansion heat exchanger, and the air return port, the water-cooling heat exchanger, the direct expansion heat exchanger, the fan and the air supply port are sequentially arranged along the air inlet and outlet direction; the input end of the water-cooling heat exchanger is connected with the water inlet, the output end of the water-cooling heat exchanger is connected with the cooling and dehumidifying mechanism, and the output end of the water-cooling heat exchanger and the output end of the precooling mechanism are respectively connected with the water outlet.
2. The water-cooling direct expansion dehumidifier unit according to claim 1, wherein the cooling and dehumidifying mechanism further comprises a water-cooling condenser, a compression part and a throttling part, wherein the output end of the direct expansion heat exchanger is connected with the input end of the water-cooling condenser through the compression part, and the output end of the water-cooling condenser is connected with the input end of the direct expansion heat exchanger through the throttling part; the output end of the water-cooling heat exchanger is connected with the input end of the water-cooling condenser.
3. The water-cooled direct expansion dehumidifier unit of claim 2, wherein the compression section comprises a compressor, an oil separator and a gas-liquid separator, the output end of the direct expansion heat exchanger, the gas-liquid separator, the input ends of the compressor, the oil separator and the water-cooled condenser are sequentially connected, and the output end of the oil separator is also connected with the input end of the gas-liquid separator.
4. The water-cooled direct expansion dehumidifier unit of claim 2, wherein the throttling part comprises an expansion valve, an electromagnetic valve and a liquid reservoir, and the output end of the water-cooled condenser, the liquid reservoir, the electromagnetic valve, the expansion valve and the input end of the direct expansion heat exchanger are sequentially connected.
5. The water-cooled direct expansion dehumidifier unit of claim 2, wherein the pre-cooling mechanism further comprises a three-way valve and an output pipeline, the water-cooled heat exchanger is respectively connected with the input end and the water outlet of the water-cooled condenser through the three-way valve, and the output end of the water-cooled condenser is connected with the water outlet through the output pipeline.
6. The water-cooled direct expansion dehumidifier unit of claim 5, wherein the pre-cooling mechanism further comprises a first temperature sensor, a second temperature sensor and a third temperature sensor, the first temperature sensor is used for detecting the inlet water temperature of the water inlet, the second temperature sensor is used for detecting the cold water temperature of the output end of the water-cooled heat exchanger, and the third temperature sensor is arranged on the output pipeline and used for detecting the cold water temperature of the output end of the water-cooled condenser.
7. The water cooled direct expansion dehumidifier unit of claim 1, further comprising an air filter positioned between said return air inlet and said water cooled heat exchanger.
8. The water-cooled direct expansion dehumidifier unit of claim 7, further comprising a first temperature and humidity sensor, a second temperature and humidity sensor and a third temperature and humidity sensor, wherein the first temperature and humidity sensor is used for detecting the temperature and humidity of air output by the air filter, the second temperature and humidity sensor is used for detecting the temperature and humidity of air output by the water-cooled heat exchanger, and the third temperature and humidity sensor is used for detecting the temperature and humidity of air output by the direct expansion heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322707430.4U CN221036015U (en) | 2023-10-09 | 2023-10-09 | Water-cooling direct-expansion dehumidifier unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322707430.4U CN221036015U (en) | 2023-10-09 | 2023-10-09 | Water-cooling direct-expansion dehumidifier unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221036015U true CN221036015U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322707430.4U Active CN221036015U (en) | 2023-10-09 | 2023-10-09 | Water-cooling direct-expansion dehumidifier unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221036015U (en) |
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2023
- 2023-10-09 CN CN202322707430.4U patent/CN221036015U/en active Active
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