CN112393346A - Integrated air-cooled cold water heat pump unit with natural cooling secondary refrigerant coil pipe - Google Patents
Integrated air-cooled cold water heat pump unit with natural cooling secondary refrigerant coil pipe Download PDFInfo
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- CN112393346A CN112393346A CN202011382664.0A CN202011382664A CN112393346A CN 112393346 A CN112393346 A CN 112393346A CN 202011382664 A CN202011382664 A CN 202011382664A CN 112393346 A CN112393346 A CN 112393346A
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- fixedly arranged
- refrigerant coil
- water
- secondary refrigerant
- natural cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention belongs to the technical field of refrigeration and air-conditioning industries, and particularly relates to an integrated air-cooled cold water heat pump unit with a natural cooling secondary refrigerant coil, which comprises a rack, wherein shared fans which are uniformly distributed are fixedly arranged on the upper side wall of the rack, the secondary refrigerant coil is fixedly arranged at the left end of each shared fan, the refrigerant coil is fixedly arranged at the right end of each shared fan, a water-side heat exchanger is fixedly arranged at the rear end inside the rack, an expansion valve is fixedly arranged at the front end of each water-side heat exchanger, a liquid storage device is fixedly arranged at the right end of each water-side heat exchanger, and a three-position two-way valve is fixedly arranged at the right end of each liquid storage device, so that the whole installation process is more convenient, the cost and the space.
Description
Technical Field
The invention relates to the technical field of refrigeration and air conditioning industries, in particular to an integrated air-cooled cold water heat pump unit with a natural cooling secondary refrigerant coil.
Background
At present, one of air-cooled cold water heat pump units used in the refrigeration and air-conditioning industry, the data center industry and the rail transit industry is a common air-cooled unit, a single-cooled type or a heat pump type, and is not provided with a natural cooling secondary refrigerant coil pipe, and some units are provided with built-in hydraulic modules, namely an integrated unit; the other is an air-cooled water chilling unit with a natural cooling secondary refrigerant coil, which is of a single cooling type; the other is an evaporation condensing unit, a single-cooling type, wherein some units are provided with natural cooling secondary refrigerant coils, and some units are provided with built-in hydraulic modules, namely the integrated unit.
Compared with the common single-cooling type or heat pump type unit, or an integrated air-cooling type or heat pump type unit with a hydraulic module, or a single-cooling type air-cooling unit with a natural cooling secondary refrigerant coil, or an evaporation and condensation integrated single-cooling type unit, which is used in the refrigeration and air-conditioning industry, the data center industry and the rail transit industry at present, the unit not only has the natural cooling secondary refrigerant coil, but also has the functions of refrigeration and heat pump, and meanwhile, the unit is an integrated unit, namely, the hydraulic module is arranged in the unit, so that a user does not need to configure a water system, and the unit has the advantages of being fast to install, convenient to construct, cost-saving, space-saving, efficient, energy-saving and the like.
Disclosure of Invention
The invention aims to provide an integrated air-cooled cold water heat pump unit with a natural cooling secondary refrigerant coil pipe, and aims to solve the problems that the existing unit in the background art is difficult to install, inconvenient to construct, high in installation cost and incapable of realizing high efficiency and energy conservation in use.
In order to achieve the purpose, the invention provides the following technical scheme: an integrated air-cooled cold water heat pump unit with a natural cooling secondary refrigerant coil comprises a frame, wherein shared fans which are uniformly distributed are fixedly arranged on the upper side wall of the frame, the left end of each shared fan is fixedly provided with the secondary refrigerant coil, the right end of each shared fan is fixedly provided with a refrigerant coil, the rear end inside the frame is fixedly provided with a water side heat exchanger, the front end of the water side heat exchanger is fixedly provided with an expansion valve, the right end of the water side heat exchanger is fixedly provided with a liquid reservoir, the right end of the liquid reservoir is fixedly provided with a three-position two-way valve, the front end of the three-position two-way valve is fixedly provided with a hydraulic module, the inside of the hydraulic module is fixedly provided with a water pump, the front end of the water pump is fixedly provided with an expansion tank, the left end of the front side wall of, the left end of the gas-liquid separator is fixedly provided with a compressor, and the left end of the compressor is fixedly provided with an oil separator.
Preferably, the secondary refrigerant coil, the common fan and the refrigerant coil are integrated together to form an air cooling and natural cooling coil system.
Preferably, the refrigerant coil, the water-side heat exchanger, the liquid reservoir, the four-way reversing valve, the gas-liquid separator, the compressor, the expansion valve and the oil separator form an air-cooled heat pump system.
Preferably, the secondary refrigerant coil, the three-position two-way valve and the hydraulic module form a natural cooling and water path transmission and distribution system.
Preferably, the secondary refrigerant coil, the common fan, the refrigerant coil, the water-side heat exchanger, the liquid storage device, the three-position two-way valve, the hydraulic module, the four-way reversing valve, the gas-liquid separator, the compressor, the expansion valve and the oil separator are all integrated on the same unit bottom frame to form an integral integrated unit.
Compared with the prior art, the invention has the beneficial effects that:
through the common cooperation of the shared fan, the secondary refrigerant coil, the water-side heat exchanger, the expansion valve, the liquid storage device, the three-position two-way valve, the hydraulic module, the water pump, the expansion tank, the gas-liquid separator, the four-way reversing valve, the compressor and the oil separator, the whole installation process is more convenient, the cost and the space are effectively saved, and the whole using process is more efficient and energy-saving.
Drawings
FIG. 1 is a schematic front view of the present invention;
fig. 2 is a schematic top view of the structure of fig. 1.
In the figure: the system comprises a frame 1, a common fan 2, a secondary refrigerant coil 3, a refrigerant coil 4, a water side heat exchanger 5, an expansion valve 6, a reservoir 7, an 8 three-position two-way valve, a 9 hydraulic module, a 10 water pump, an 11 expansion tank, a 12 gas-liquid separator, a 13 four-way reversing valve, a 14 compressor and a 15 oil separator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-2, the present invention provides a technical solution: an integrated air-cooled cold water heat pump unit with a natural cooling secondary refrigerant coil comprises a frame 1, common fans 2 which are uniformly distributed are fixedly arranged on the upper side wall of the frame 1, a secondary refrigerant coil 3 is fixedly arranged at the left end of each common fan 2, a refrigerant coil 4 is fixedly arranged at the right end of each common fan 2, a water-side heat exchanger 5 is fixedly arranged at the rear end inside the frame 1, an expansion valve 6 is fixedly arranged at the front end of the water-side heat exchanger 5, a liquid reservoir 7 is fixedly arranged at the right end of the water-side heat exchanger 5, a three-position two-way valve 8 is fixedly arranged at the right end of the liquid reservoir 7, a hydraulic module 9 is fixedly arranged at the front end of the three-position two-way valve 8, a water pump 10 is fixedly arranged inside the hydraulic module 9, an expansion tank 11 is fixedly arranged at the front end of the water pump 10, the compressor 14 is fixed to the left end of the gas-liquid separator 12, and the oil separator 15 is fixed to the left end of the compressor 14.
The secondary refrigerant coil 3, the common fan 2 and the refrigerant coil 4 are integrated together to form an air cooling and natural cooling coil system.
The refrigerant coil 4, the water-side heat exchanger 5, the liquid reservoir 7, the four-way reversing valve 13, the gas-liquid separator 12, the compressor 14, the expansion valve 6 and the oil separator 15 form an air-cooled heat pump system.
The refrigerating medium coil 4, the three-position two-way valve 8 and the hydraulic module 9 form a natural cooling and water path transmission and distribution system.
The secondary refrigerant coil 3, the common fan 2, the refrigerant coil 4, the water-side heat exchanger 5, the liquid storage device 7, the three-position two-way valve 8, the hydraulic module 9, the four-way reversing valve 13, the gas-liquid separator 12, the compressor 14, the expansion valve 6 and the oil separator 15 are all designed and integrated on the same unit bottom frame to form an integral unit.
The working principle is as follows: air-cooled refrigeration mode: the three-position two-way valve 8 is switched to communicate the hydraulic module 9 with the water-side heat exchanger 5, a refrigeration cycle loop is formed by a compressor 14, an oil separator 15, a four-way reversing valve 13, a refrigerant coil 4, an expansion valve 6, the water-side heat exchanger 5 and a gas-liquid separator 12, secondary refrigerant enters the water-side heat exchanger 5 through the hydraulic module 9 and the three-position two-way valve 8, is discharged through the hydraulic module 9 after being cooled, is evaporated and absorbs heat in the water-side heat exchanger 5, enters the gas-liquid separator 12 through a pipe orifice 'E' and a pipe orifice 'S' of the four-way reversing valve 13 in sequence, enters the compressor 14 after gas-liquid separation, mixed gas of the compressed refrigerant and lubricating oil enters the oil separator 15 for oil-gas separation, separated gaseous refrigerant enters the refrigerant coil 4 through a pipe orifice 'D' and a pipe orifice 'C' of the, the gaseous refrigerant is cooled into a liquid refrigerant, throttled and depressurized by the expansion valve 6, and enters the water side heat exchanger 5 again to be evaporated and absorb heat, so that the refrigeration cycle is realized;
and (3) a natural cooling refrigeration mode: the three-position two-way valve 8 is switched to communicate the hydraulic module 9, the secondary refrigerant coil 3 and the water-side heat exchanger 5, the secondary refrigerant enters the secondary refrigerant coil 3 through the hydraulic module 9 and the three-position two-way valve 8 and is cooled under the action of the common fan 2 to realize cooling, the cooled secondary refrigerant passes through a passage of the water-side heat exchanger 5 and is discharged through the hydraulic module 9, and the compressor 14 is not started in the mode;
a mixed refrigeration mode: the three-position two-way valve 8 is switched to communicate the hydraulic module 9, the secondary refrigerant coil 3 and the water-side heat exchanger 5, the secondary refrigerant enters the secondary refrigerant coil 3 through the hydraulic module 9 and the three-position two-way valve 8 and is cooled under the action of the common fan 2 to realize cooling, the cooled secondary refrigerant enters the water-side heat exchanger 5 to further release heat and cool and is discharged through the hydraulic module 9, the compressor 14 is always started in the mode, the compressor 14, the oil separator 15, the four-way reversing valve 13, the refrigerant coil 4, the expansion valve 6, the water-side heat exchanger 5 and the gas-liquid separator 12 form a refrigeration cycle loop, the secondary refrigerant enters the water-side heat exchanger 5 through the hydraulic module 9 and the three-position two-way valve 8, is discharged through the hydraulic module 9 after cooling, the refrigerant is evaporated and absorbs heat in the water-side heat exchanger 5 and sequentially passes through the orifice E and the orifice S, the refrigerant after gas-liquid separation enters a compressor 14, the mixed gas of the compressed refrigerant and lubricating oil enters an oil separator 15 for oil-gas separation, the separated gaseous refrigerant sequentially passes through a pipe orifice D and a pipe orifice C of a four-way reversing valve 13 and enters a refrigerant coil 4, the gaseous refrigerant is cooled into liquid refrigerant under the action of a common fan 2, the liquid refrigerant is throttled and depressurized by an expansion valve 6 and enters a water side heat exchanger 5 again for evaporation and heat absorption, and refrigeration cycle is realized;
heating mode: the three-position two-way valve 8 is switched to communicate the hydraulic module 9 with the water-side heat exchanger 5, a heating circulation loop is formed by a compressor 14, an oil separator 15, a four-way reversing valve 13, the water-side heat exchanger 5, a liquid reservoir 7, an expansion valve 6 and a refrigerant coil 4, under the action of a common fan 2, the refrigerant absorbs heat and evaporates in the refrigerant coil 4 to become gas, the gas leaves the refrigerant coil 4 and sequentially passes through a pipe orifice C and a pipe orifice S of the four-way reversing valve 13 and enters a gas-liquid separator 12, the gas refrigerant after gas-liquid separation enters the compressor 14, the mixed gas of the compressed gas refrigerant and lubricating oil enters the oil separator 15 for oil-gas separation, the separated gas refrigerant sequentially passes through a pipe orifice D and a pipe orifice E of the four-way reversing valve 13 and enters the water-side heat exchanger 5, and then passes through the hydraulic module 9 and enters the water-, meanwhile, the gaseous refrigerant is cooled into a liquid refrigerant, the liquid refrigerant enters the liquid storage device 7, is throttled and decompressed by the expansion valve 6, and enters the refrigerant coil 4 again to absorb heat and evaporate, so that the heating cycle is realized.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An integrated air-cooled cold water heat pump unit with a natural cooling secondary refrigerant coil comprises a rack (1) and is characterized in that shared fans (2) which are uniformly distributed are fixedly arranged on the upper side wall of the rack (1), a secondary refrigerant coil (3) is fixedly arranged at the left end of each shared fan (2), a refrigerant coil (4) is fixedly arranged at the right end of each shared fan (2), a water-side heat exchanger (5) is fixedly arranged at the rear end inside the rack (1), an expansion valve (6) is fixedly arranged at the front end of each water-side heat exchanger (5), a liquid reservoir (7) is fixedly arranged at the right end of each water-side heat exchanger (5), a three-position two-way valve (8) is fixedly arranged at the right end of each liquid reservoir (7), a hydraulic module (9) is fixedly arranged at the front end of each three-position two-way valve (8), and a water pump (10), the hydraulic pump is characterized in that an expansion tank (11) is fixedly arranged at the front end of the water pump (10), a gas-liquid separator (12) is fixedly arranged at the left end of the front side wall of the hydraulic module (9), a four-way reversing valve (13) is fixedly arranged at the rear end of the gas-liquid separator (12), a compressor (14) is fixedly arranged at the left end of the gas-liquid separator (12), and an oil separator (15) is fixedly arranged at the left end of the compressor (14).
2. The integrated air-cooled cold water heat pump unit with the natural cooling secondary refrigerant coil pipe according to claim 1, is characterized in that: the secondary refrigerant coil (3), the common fan (2) and the refrigerant coil (4) are integrated together to form an air cooling and natural cooling coil system.
3. The integrated air-cooled cold water heat pump unit with the natural cooling secondary refrigerant coil pipe according to claim 1, is characterized in that: the refrigerant coil (4), the water side heat exchanger (5), the liquid storage device (7), the four-way reversing valve (13), the gas-liquid separator (12), the compressor (14), the expansion valve (6) and the oil separator (15) form an air-cooled heat pump system.
4. The integrated air-cooled cold water heat pump unit with the natural cooling secondary refrigerant coil pipe according to claim 1, is characterized in that: the secondary refrigerant coil (3), the three-position two-way valve (8) and the hydraulic module (9) form a natural cooling and water path transmission and distribution system.
5. The integrated air-cooled cold water heat pump unit with the natural cooling secondary refrigerant coil pipe according to claim 1, is characterized in that: the refrigerating medium coil (3), the common fan (2), the refrigerating medium coil (4), the water side heat exchanger (5), the liquid storage device (7), the three-position two-way valve (8), the hydraulic module (9), the four-way reversing valve (13), the gas-liquid separator (12), the compressor (14), the expansion valve (6) and the oil separator (15) are all designed and integrated on the same unit bottom frame to form an integral unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382664.0A CN112393346A (en) | 2020-12-01 | 2020-12-01 | Integrated air-cooled cold water heat pump unit with natural cooling secondary refrigerant coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382664.0A CN112393346A (en) | 2020-12-01 | 2020-12-01 | Integrated air-cooled cold water heat pump unit with natural cooling secondary refrigerant coil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112393346A true CN112393346A (en) | 2021-02-23 |
Family
ID=74603927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011382664.0A Withdrawn CN112393346A (en) | 2020-12-01 | 2020-12-01 | Integrated air-cooled cold water heat pump unit with natural cooling secondary refrigerant coil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112393346A (en) |
-
2020
- 2020-12-01 CN CN202011382664.0A patent/CN112393346A/en not_active Withdrawn
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Application publication date: 20210223 |
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| WW01 | Invention patent application withdrawn after publication |