CN218120334U - Water defrosting system for water-cooling direct-expansion all-in-one machine - Google Patents
Water defrosting system for water-cooling direct-expansion all-in-one machine Download PDFInfo
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- CN218120334U CN218120334U CN202221977454.0U CN202221977454U CN218120334U CN 218120334 U CN218120334 U CN 218120334U CN 202221977454 U CN202221977454 U CN 202221977454U CN 218120334 U CN218120334 U CN 218120334U
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Abstract
The utility model relates to the technical field of refrigeration equipment, and discloses a water defrosting system for a water-cooling direct-expansion all-in-one machine, which comprises a water-cooling direct-expansion all-in-one machine and a cooling component; the water-cooling direct-expansion all-in-one machine comprises a compressor, a condenser, an evaporator, a unit controller, a sprayer and a water collecting tray; the cooling assembly comprises a cooling tower, a water tank and a circulating pump which are connected in sequence; the water outlet of the circulating pump is connected with a three-way joint, two water outlets of the three-way joint are respectively connected with a cooling water inlet pipe and a defrosting water inlet pipe, and a cooling water inlet is communicated with the cooling water inlet pipe; the water inlet of the sprayer is communicated with the defrosting water inlet pipe, and the cooling water outlet is communicated with the water inlet of the cooling tower; the defrosting and draining outlet of the water collecting tray is communicated with the water tank. The cooling water of the utility model can be used as defrosting water, thereby simplifying the system configuration; the defrosting drainage is recycled and utilized to reduce the water supply temperature of the cooling water; the defrosting and the refrigerating of the water-cooling direct-expansion all-in-one machine are not affected mutually.
Description
Technical Field
The utility model relates to a refrigeration plant technical field, concretely relates to water-washed frost system for water-cooling directly expands all-in-one.
Background
The air cooler is the most common evaporator applied to the refrigeration system of the existing refrigeration house. When the air cooler performs forced air supply refrigeration, because the relative humidity in the refrigerator is high, after a period of refrigeration, the fins of the air cooler begin to frost. The frost layer will grow thicker and thicker as the running time increases. Thicker frost layers can lead to two main problems: one is that the heat transfer resistance is increased, and the cold quantity in the evaporator coil can not effectively pass through the pipe wall and the frost layer to be transferred into the refrigeration house; another problem is that: the thicker frost layer forms larger wind resistance for the fan motor, so that the air volume of the air cooler is reduced, and the heat transfer efficiency of the air cooler is also reduced. In severe cases, the refrigerant liquid which is not completely evaporated returns to the suction end of the refrigerating unit, so that the service life of the refrigerating compressor is greatly shortened. In order to increase the efficiency of the refrigeration unit and to ensure the proper life of the compressor, the evaporator must be defrosted at certain times. The currently used defrosting modes include three modes, namely electric heating defrosting, hot gas (high-temperature and high-pressure refrigerant gas) defrosting and water flushing defrosting.
The air cooler commonly used at present is a water-cooling direct-expansion all-in-one machine. The water-cooling direct-expansion all-in-one machine integrates all refrigeration components and air system components, including a compressor, a condenser, an evaporator, an air supply fan and a unit controller, into a whole structural unit. A cooling water system of a water-cooling direct-expansion all-in-one machine refrigeration system adopts a closed cooling tower system, wherein the water supply temperature of cooling water is 30 ℃, and the water return temperature is 35 ℃. The existing water-cooling direct-expansion all-in-one machine adopts hot-air defrosting, and the water-cooling direct-expansion all-in-one machine needing defrosting in a system is switched to a heat pump working condition for defrosting. When the defrosting mode is adopted, the compressor still needs to work, the power consumption of the refrigeration house is increased, and the refrigeration house Wen Huiyou can rise back in a short time. The water-cooling direct-expansion all-in-one machine adopts a water-cooling system, so that the possibility of flushing frost by using cooling water is provided. A great number of researchers and equipment manufacturers have studied the water defrosting mode of the refrigeration system.
Shaoxing jieshan drying equipment science and technology limited company (Chinese utility model patent 201620840294.3) provides an air cooler capable of realizing cyclic utilization of defrosting water, the air cooler realizes heating of defrosting water by arranging a heating plate between a box body and a defrosting water drainage pipe, although the method can improve water resource saving, the method increases the power consumption of a refrigeration house, wastes high-grade energy, and therefore whether the system is energy-saving or not needs to be further verified.
China aquatic products boat mountain ocean fishery company (Chinese utility model patent 201620325869.8) provides a refrigeration compressor cooling water and freezes heat energy coupled system of dashing frost water between, realizes the heat exchange of cooling water and dashing frost water through setting up the heat exchanger, and then improves the temperature of dashing frost water, reduces the temperature of cooling water. The addition of heat exchangers complicates the refrigeration system and increases the cost of later maintenance.
Shanghai Ministry supply chain management limited company (Chinese utility model patent 201721712055.0) provides a refrigeration house refrigeration and defrosting integrated system for recovering condensation heat and improving defrosting water temperature, realizes partial sharing of a refrigeration house refrigeration system and a defrosting water system, and recovers the cold energy of defrosting water for reducing the temperature of cooling water. But its cooling process and the switching of towards white process rely on a tee bend flow control valve on the main line to accomplish, and when air-cooler quantity was more, the control of valve will be very complicated, and this kind of system is not applicable to the integral type air-cooler, because the compressor is out of work during the defrosting of integral type air-cooler, need cut off the condenser tube way, only rely on a tee valve can't realize this function.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a water-cooling defrosting system for a water-cooling direct-expansion all-in-one machine, which solves the problems that the hot gas defrosting process of the existing water-cooling direct-expansion all-in-one machine consumes power and the storage temperature fluctuation is large; and when cooling water is adopted for defrosting, when a plurality of refrigerating system integrated machines are adopted, the problems that the control is not easy to realize by the pipeline tee joint and the like are solved.
In order to achieve the above purpose, the present invention adopts the following technical solution.
A water defrosting system for a water-cooling direct-expansion all-in-one machine comprises the water-cooling direct-expansion all-in-one machine and a cooling assembly;
the water-cooling direct-expansion all-in-one machine comprises a compressor, a condenser and an evaporator unit controller, wherein the condenser is provided with a cooling water inlet and a cooling water outlet; the defrosting and draining device also comprises a sprayer for defrosting the evaporator and a water collecting tray for collecting defrosting and draining water, wherein the bottom of the water collecting tray is provided with a defrosting and draining outlet;
the cooling assembly comprises a cooling tower, a water tank and a circulating pump; the cooling tower is provided with a water inlet and a water outlet, the upper part of the water tank is opened, and the bottom of the water tank is provided with a water outlet; the water outlet of the cooling tower is communicated with the water tank through a pipeline; the water outlet of the water tank is communicated with the water inlet of the circulating pump through a pipeline; a water outlet of the circulating pump is connected with a three-way joint through a first pipeline, one water outlet of the three-way joint is connected with a cooling water inlet pipe, and a cooling water inlet is communicated with the cooling water inlet pipe through a second connecting pipeline; a valve is arranged on the second connecting pipeline; the other water outlet of the three-way joint is connected with a defrosting water inlet pipe, the water inlet of the sprayer is communicated with a defrosting water inlet pipe 7 through a third connecting pipeline, and a valve is arranged on the third connecting pipeline;
the cooling water outlet is communicated with the water inlet of the cooling tower through a cooling water return pipe; the defrosting and draining outlet of the water collecting tray is communicated with the water tank through a defrosting water return pipe.
Preferably, the water defrosting system for the water-cooling direct-expansion all-in-one machine comprises a plurality of water-cooling direct-expansion all-in-one machines, each cooling water inlet is communicated with the cooling water inlet pipe through a fourth connecting pipeline, and a valve is arranged on each fourth connecting pipeline; each cooling water outlet is communicated with a cooling water return pipe; the water inlet of each sprayer is communicated with the defrosting water inlet pipe through a fifth connecting pipeline, and the fifth connecting pipeline is provided with a valve; each defrosting water outlet is communicated with a defrosting water return pipe.
Preferably, the first pipeline is also provided with a water separator, the water separator is provided with a water inlet and a plurality of water outlets, and the water separator is also provided with an exhaust pipe; the first pipeline is connected with a water inlet of the water separator, a plurality of water outlets of the water separator are connected with water inlets of a plurality of three-way joints, one water outlet of each three-way joint is connected with a cooling water inlet pipe, and the other water outlet of each three-way joint is connected with a defrosting water inlet pipe; the cooling water inlet is communicated with the cooling water inlet pipe through a connecting pipeline; the water inlet of the sprayer is communicated with the defrosting water inlet pipe through a connecting pipeline.
Preferably, the cooling water return pipe is provided with a water collector, the water collector is provided with a plurality of water inlets and a water outlet, and the cooling water return pipe is also provided with an exhaust pipe; each cooling water outlet is connected with one of the water inlets of the water collector, and the water outlet of the water collector is connected with the cooling water return pipe.
Preferably, the side wall of the water tank is also provided with an overflow pipe.
Preferably, the valve is a solenoid valve.
Preferably, the water tank is also connected with a tap water pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The cooling water of the utility model can be used as defrosting water, thereby simplifying the system configuration;
(2) The defrosting drainage water is recycled, and the defrosting drainage water and the cooling tower outlet water are mixed in the water tank, so that the supply water temperature of the cooling water is further reduced;
(3) The switching between the refrigeration process and the defrosting process of the water-cooling direct-expansion all-in-one machine is realized by controlling the opening and closing of the electromagnetic valve on the connecting pipeline, the system is simple to control, and other water-cooling direct-expansion all-in-one machines can still refrigerate when a single water-cooling direct-expansion all-in-one machine defrosts, and the refrigeration process and the defrosting process are not mutually influenced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of a water defrosting system for a water-cooling direct-expansion all-in-one machine;
FIG. 2 is a schematic structural diagram of a water defrosting system for a water-cooling direct-expansion all-in-one machine, which is provided with a water distributor and a water collector;
the reference signs are: 1. a water-cooling direct-expansion all-in-one machine; 2. a cooling tower; 3. a water tank; 4. a circulation pump; 5. a cooling water inlet pipe; 6. a cooling water return pipe; 7. a defrosting water inlet pipe; 8. a defrosting water return pipe; 9. a water separator; 10. a water collector; 11. an overflow pipe; 12. a tap water pipe; 13. a three-way joint; 101. a condenser; 102. an evaporator.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
Referring to fig. 1, a schematic structural diagram of a water defrosting system for a water-cooling direct-expansion all-in-one machine of the present invention is shown;
a water defrosting system for a water-cooling direct-expansion all-in-one machine comprises a water-cooling direct-expansion all-in-one machine 1 and a cooling assembly;
the water-cooling direct-expansion all-in-one machine 1 comprises a compressor, a condenser 101, an evaporator 102 and a unit controller, wherein the condenser is provided with a cooling water inlet and a cooling water outlet; the defrosting and draining device also comprises a sprayer for defrosting the evaporator and a water collecting tray for collecting defrosting and draining water, wherein the bottom of the water collecting tray is provided with a defrosting and draining outlet;
the cooling assembly comprises a cooling tower 2, a water tank 3 and a circulating pump 4; the cooling tower is provided with a water inlet and a water outlet, the upper part of the water tank 3 is opened, and the bottom of the water tank is provided with a water outlet; the water tank 3 is further connected with a tap water pipe 12 for supplementing water to the water tank, the side wall of the water tank 3 is further provided with an overflow pipe 11, and when the water level in the water tank is too high, water is discharged through the overflow pipe 11.
The water outlet of the cooling tower 2 is communicated with the water tank 3 through a pipeline; the water outlet of the water tank is communicated with the water inlet of the circulating pump 4 through a pipeline; the water outlet of the circulating pump 4 is connected with a three-way joint 13 through a first pipeline to divide the cooling water into two parts; a water outlet of the three-way joint 13 is connected with a cooling water inlet pipe 5, and a cooling water inlet is communicated with the cooling water inlet pipe 5 through a second connecting pipeline and used for cooling the condenser; a valve is arranged on the second connecting pipeline; the other water outlet of the three-way joint is connected with a defrosting water inlet pipe 7, and the water inlet of the sprayer is communicated with the defrosting water inlet pipe 7 through a third connecting pipeline and is used for defrosting the evaporator; a valve is arranged on the third connecting pipeline; in this embodiment, the valve is a solenoid valve.
The cooling water outlet is communicated with the water inlet of the cooling tower 2 through a cooling water return pipe 6, and cooling water return water is sent to the cooling tower for cooling; a defrosting and draining outlet of the water collecting tray is communicated with the water tank 3 through a defrosting water return pipe 8, defrosting and draining water is sent into the water tank for recycling, and the temperature of the water in the water tank is reduced by the defrosting water.
The water-cooling direct-expansion all-in-one machine has two working conditions of refrigeration and defrosting.
When the water-cooling direct-expansion all-in-one machine is in a refrigerating working condition, a compressor of the water-cooling direct-expansion all-in-one machine is started, an electromagnetic valve on the second connecting pipeline is started, and an electromagnetic valve on the third connecting pipeline is closed. The cooling water enters the water tank after being cooled by the cooling tower, is conveyed by the circulating pump to enter the tee joint, enters the cooling water inlet pipe and the defrosting water inlet pipe, and enters the cooling water inlet through the second connecting pipeline to cool the condenser, and then returns to the cooling tower from the cooling water return pipe to be cooled. The inlet temperature of the cooling water is 30 ℃, and the return temperature is 35 ℃.
When the defrosting operation mode is met, the compressor of the water-cooling direct-expansion all-in-one machine is closed, the electromagnetic valve on the second connecting pipeline is closed, and the electromagnetic valve on the third connecting pipeline is opened. The cooling water enters the water tank after being cooled by the cooling tower, is conveyed by the circulating pump to enter the tee joint and enters the cooling water inlet pipe and the defrosting water inlet pipe, the cooling water in the defrosting water inlet pipe enters the water inlet of the sprayer through the third connecting pipeline and sprays the evaporator for defrosting, defrosting drainage water after defrosting flows out of a defrosting drainage outlet of the water collecting tray and flows back to the water tank through a defrosting water return pipe for recycling. The water outlet temperature of the cooling tower is 30 ℃, and the defrosting and draining temperature is about 20 ℃. After the defrosting drainage water and the cooling tower outlet water are mixed in the water tank, the water temperature in the water tank is about 28 ℃ according to the amount of the defrosting drainage water, and at the moment, the water inlet temperature of the condenser of other water-cooling direct-expansion all-in-one machines can be reduced, so that the condensation temperature of the water-cooling direct-expansion all-in-one machines is reduced, and the COP of the condenser of the water-cooling direct-expansion all-in-one machine is improved.
When the water tank is used for the first time or the defrosting water is insufficient to cause the water level of the water tank to be lower than the lowest water level, the water can be supplemented to the water tank through the tap water pipe. When the water level in the water tank exceeds the highest water level line, water is drained into the drainage ditch through the overflow pipe.
As a preferred scheme, the water defrosting system for the water-cooling direct-expansion all-in-one machine can comprise a plurality of water-cooling direct-expansion all-in-one machines 1, each cooling water inlet is communicated with a cooling water inlet pipe 5 through a fourth connecting pipeline, and a valve is arranged on the fourth connecting pipeline; each cooling water outlet is communicated with a cooling water return pipe 6; the water inlet of each sprayer is communicated with a defrosting water inlet pipe 7 through a fifth connecting pipeline, and the fifth connecting pipeline is provided with a valve; each defrosting water outlet is communicated with a defrosting water return pipe 8. When the individual water-cooling direct-expansion all-in-one machine defrosts, other water-cooling direct-expansion all-in-one machines which do not need defrosting can normally operate, and the switching of the refrigerating and defrosting working conditions of the all-in-one machines can be realized only by switching the electromagnetic valve on the fourth connecting pipeline and the electromagnetic valve on the fifth connecting pipeline of each water-cooling direct-expansion all-in-one machine. Specifically, a compressor of the water-cooling direct-expansion all-in-one machine needing defrosting is closed, then an electromagnetic valve of a fourth connecting pipeline is closed, and a cooling water inlet pipe stops water inflow; and opening the electromagnetic valve of the fifth connecting pipeline, and enabling the defrosting water inlet pipe to enter a defrosting working condition. After the defrosting operation is finished, the electromagnetic valve of the fifth connecting pipeline is closed, the electromagnetic valve of the fourth connecting pipeline is opened, and the compressor of the water-cooling direct-expansion all-in-one machine is started to enter the refrigerating working condition.
As a preferable scheme, a water separator 9 is further arranged on the first pipeline, the water separator is provided with a water inlet and a plurality of water outlets, and an exhaust pipe is further arranged and used for exhausting gas in the pipeline. The first pipeline is connected with a water inlet of the water separator, a plurality of water outlets of the water separator 9 are connected with water inlets of a plurality of three-way joints, one water outlet of each three-way joint is connected with a cooling water inlet pipe, and the other water outlet of each three-way joint is connected with a defrosting water inlet pipe; the cooling water inlet is communicated with a cooling water inlet pipe 5 through a connecting pipeline provided with an electromagnetic valve; the water inlet of the sprayer is communicated with a defrosting water inlet pipe 7 through a connecting pipeline provided with an electromagnetic valve.
Further, a water collector 10 is arranged on the cooling water return pipe 6, and is provided with a plurality of water inlets and a water outlet, and an exhaust pipe; each cooling water outlet is connected with one of the water inlets of the water collector, and the water outlet of the water collector is connected with the cooling water return pipe.
Specifically, each water outlet of the water separator is connected with a tee joint through a pipeline, each tee joint is connected with a cooling water inlet pipe and a defrosting water inlet pipe, and the cooling water inlet pipe of each tee joint is communicated with one or more cooling water inlets through a connecting pipeline and used for cooling the condenser of one or more water-cooling direct-expansion integrated machines; and the defrosting water inlet pipe of each three-way joint is communicated with the water inlets of one or more sprayers and is used for defrosting the evaporators of one or more water-cooling direct-expansion integrated machines.
Although the invention has been described in detail in this specification by way of general description and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A water defrosting system for a water-cooling direct-expansion all-in-one machine is characterized by comprising a water-cooling direct-expansion all-in-one machine (1) and a cooling assembly;
the water-cooling direct-expansion all-in-one machine (1) comprises a compressor, a condenser (101), an evaporator (102) and a unit controller, wherein the condenser is provided with a cooling water inlet and a cooling water outlet; the evaporator is characterized by also comprising a sprayer for defrosting the evaporator and a water collecting tray for collecting defrosting and draining water, wherein the bottom of the water collecting tray is provided with a defrosting and draining outlet;
the cooling assembly comprises a cooling tower (2), a water tank (3) and a circulating pump (4); the cooling tower is provided with a water inlet and a water outlet, the upper part of the water tank (3) is opened, and the bottom of the water tank is provided with a water outlet; the water outlet of the cooling tower (2) is communicated with the water tank (3) through a pipeline; the water outlet of the water tank is communicated with the water inlet of the circulating pump (4) through a pipeline; a water outlet of the circulating pump (4) is connected with a three-way joint (13) through a first pipeline, one water outlet of the three-way joint (13) is connected with a cooling water inlet pipe (5), and a cooling water inlet is communicated with the cooling water inlet pipe (5) through a second connecting pipeline; a valve is arranged on the second connecting pipeline; the other water outlet of the three-way joint (13) is connected with a defrosting water inlet pipe (7), the water inlet of the sprayer is communicated with the defrosting water inlet pipe (7) through a third connecting pipeline, and a valve is arranged on the third connecting pipeline; the cooling water outlet is communicated with the water inlet of the cooling tower through a cooling water return pipe (6); the defrosting and draining outlet of the water collecting tray is communicated with the water tank through a defrosting water return pipe (8).
2. The water defrosting system for the water-cooling direct-expansion all-in-one machine according to claim 1, comprising a plurality of water-cooling direct-expansion all-in-one machines (1), wherein each cooling water inlet is communicated with the cooling water inlet pipe (5) through a fourth connecting pipeline, and a valve is arranged on each fourth connecting pipeline; each cooling water outlet is communicated with the cooling water return pipe (6); the water inlet of each sprayer is communicated with the defrosting water inlet pipe (7) through a fifth connecting pipeline, and the fifth connecting pipeline is provided with a valve; each defrosting drainage outlet is communicated with the defrosting water return pipe (8).
3. The water defrosting system for the water-cooling direct-expansion all-in-one machine according to claim 1, wherein a water separator (9) is further arranged on the first pipeline, the water separator (9) is provided with a water inlet and a plurality of water outlets, and the water separator is further provided with an exhaust pipe; the first pipeline is connected with a water inlet of the water separator, a plurality of water outlets of the water separator are connected with water inlets of a plurality of three-way joints (13), one water outlet of each three-way joint is connected with a cooling water inlet pipe (5), and the other water outlet of each three-way joint is connected with a defrosting water inlet pipe (7); the cooling water inlet is communicated with a cooling water inlet pipe (5) through a connecting pipeline; the water inlet of the sprayer is communicated with a defrosting water inlet pipe (7) through a connecting pipeline.
4. The water defrosting system for the water-cooling direct-expansion all-in-one machine according to claim 3, wherein a water collector (10) is arranged on the cooling water return pipe (6), the water collector (10) is provided with a plurality of water inlets and a water outlet, and an exhaust pipe is further arranged; each cooling water outlet is connected with one of the water inlets of the water collector, and the water outlet of the water collector is connected with the cooling water return pipe (6).
5. The water defrosting system for the water-cooling direct-expansion all-in-one machine as claimed in claim 1, wherein an overflow pipe (11) is further arranged on the side wall of the water tank (3).
6. The water defrosting system for the water-cooling direct-expansion all-in-one machine according to claim 1, wherein the valve is an electromagnetic valve.
7. The water defrosting system for the water-cooling direct-expansion all-in-one machine according to claim 1, wherein a tap water pipe (12) is further connected to the water tank (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221977454.0U CN218120334U (en) | 2022-07-27 | 2022-07-27 | Water defrosting system for water-cooling direct-expansion all-in-one machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221977454.0U CN218120334U (en) | 2022-07-27 | 2022-07-27 | Water defrosting system for water-cooling direct-expansion all-in-one machine |
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| CN218120334U true CN218120334U (en) | 2022-12-23 |
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| CN202221977454.0U Active CN218120334U (en) | 2022-07-27 | 2022-07-27 | Water defrosting system for water-cooling direct-expansion all-in-one machine |
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