CN210128524U - Multistage heat exchange air-cooling heat dissipation system for built-in display cabinet - Google Patents
Multistage heat exchange air-cooling heat dissipation system for built-in display cabinet Download PDFInfo
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- CN210128524U CN210128524U CN201920745053.4U CN201920745053U CN210128524U CN 210128524 U CN210128524 U CN 210128524U CN 201920745053 U CN201920745053 U CN 201920745053U CN 210128524 U CN210128524 U CN 210128524U
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Abstract
The utility model discloses a multistage heat exchange air-cooled heat dissipation system for built-in display cabinets, which comprises a refrigerant circulating device and a secondary refrigerant circulating and cooling device, wherein the refrigerant circulating device comprises a compressor, a plate heat exchanger, a solenoid valve, a throttling and pressure reducing part and an evaporator which are sequentially connected through pipelines, and the mode of refrigerant entering the plate heat exchanger is that the refrigerant enters from top to bottom; the secondary refrigerant circulating cooling device comprises an air-cooled radiator and a circulating pump, and the secondary refrigerant enters the plate heat exchanger and the air-cooled radiator in a downward-in and upward-out mode. The utility model discloses use plate heat exchanger to replace traditional air-cooled condenser, realize the heat exchange of refrigerant and secondary refrigerant in plate heat exchanger, use the forced air cooling radiator to dispel the heat for endless secondary refrigerant, realized that the system heat shifts to outdoor from indoor, reduced indoor heat, reduced air conditioner load, reduced the energy consumption; the problem of refrigeration effect poor is solved, equipment refrigeration efficiency has been promoted, the system fault rate is reduced.
Description
Technical Field
The utility model relates to a refrigerating system technical field especially relates to a multistage heat transfer forced air cooling system for interior concealed show cupboard.
Background
At present, most of the refrigeration systems of the built-in display cabinets use air-cooled condensers, the refrigeration efficiency is low, and the heat of the systems is directly discharged indoors. When the indoor environment temperature is high, especially in summer, the load of the indoor air conditioner can be increased due to the increase of indoor heat, extra electric energy consumption is increased, and the use cost is increased.
When the air conditioner was closed night, indoor system heat can't obtain effectual emission, can lead to system's compressor exhaust temperature to rise, and the condensation pressure is too high very easily causes the whole refrigeration effect of equipment relatively poor to and frequent fault alarm's phenomenon appears in equipment, in addition, still causes the interior goods of cabinet to take place rotten easily, still can lead to equipment to damage when serious, has very big potential safety hazard in the use of messenger's built-in show cupboard.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a multistage heat transfer forced air cooling system for interior concealed show cupboard.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a multi-stage heat exchange air-cooled heat dissipation system for an internal display cabinet comprises a refrigerant circulating device and a secondary refrigerant circulating and cooling device, wherein:
the refrigerant circulating device comprises a compressor, a plate heat exchanger, an electromagnetic valve, a throttling and pressure reducing part and an evaporator which are sequentially connected through pipelines, wherein the refrigerant enters the plate heat exchanger in an up-in-down-out mode, and the electromagnetic valve can control the opening or closing of the refrigerant conveying entering the evaporator;
the secondary refrigerant circulating cooling device comprises an air-cooled radiator and a circulating pump, and the secondary refrigerant enters the plate heat exchanger and the air-cooled radiator in a downward-in and upward-out mode.
As a further preferred aspect of the present invention, the refrigerant cycle device has a work flow:
high-temperature and high-pressure refrigerant from the compressor enters the plate heat exchanger, the high-temperature and high-pressure refrigerant and secondary refrigerant exchange heat in the plate heat exchanger, the high-temperature and high-pressure refrigerant is condensed into high-pressure liquid refrigerant, the liquid refrigerant enters the evaporator through the throttling pressure reduction part, the liquid refrigerant absorbs heat in the evaporator and becomes gaseous, the gaseous low-temperature refrigerant is sucked back to the compressor after being overheated in the evaporator and is compressed into the high-temperature and high-pressure refrigerant again, the refrigerant circulating process is completed, and the process is repeated in such a circulating way.
As a further preferred aspect of the present invention, the throttling and pressure reducing component is an expansion valve or a capillary tube.
As a further preferred aspect of the present invention, the solenoid valve controls to shut off the supply of the liquid refrigerant when an abnormality occurs in the system.
As a further preferred aspect of the present invention, the coolant circulation cooling device has a work flow:
when the high-temperature high-pressure refrigerant and the secondary refrigerant exchange heat in the plate heat exchanger, the secondary refrigerant is heated, is discharged from the plate heat exchanger and is sent into the air-cooled radiator through the circulating pump, the air-cooled radiator absorbs air in the environment through the powerful fan to cool the secondary refrigerant, the cooled secondary refrigerant is sent back to the plate heat exchanger again to finish the circulating cooling process of the secondary refrigerant, and the process is repeated in a circulating manner.
As a further optimization of the utility model, the secondary refrigerant is liquid which is suitable for being used at the ambient temperature of minus 50 ℃ to 50 ℃.
As a further preferred aspect of the present invention, the coolant is one selected from water, ethylene glycol, and antifreeze.
As a further preferred aspect of the present invention, the air-cooled radiator is a finned radiator.
The utility model discloses among the work flow, utilize the secondary refrigerant of uniform temperature to carry out the condensation to the refrigerant among the refrigerating system, will produce through the secondary refrigerant circulation in indoor heat shifts to outdoor forced air cooling radiator to realized that the system heat shifts to outdoor process from indoor.
The utility model has the advantages that the plate heat exchanger is used for replacing the traditional air-cooled condenser, the heat exchange between the refrigerant and the secondary refrigerant is realized in the plate heat exchanger, the air-cooled radiator is used for radiating the circulating secondary refrigerant, the heat of the system is transferred from the indoor to the outdoor, the indoor heat is greatly reduced, thereby the load of the air conditioner is reduced, and the energy consumption is reduced; the problem of poor refrigeration effect caused by high pressure of a refrigeration system is also perfectly solved, the overall refrigeration efficiency of the equipment is effectively improved, and the system failure rate is reduced.
Drawings
Fig. 1 is a schematic flow chart of a refrigerant cycle device according to the present invention;
fig. 2 is a schematic flow chart of the coolant circulation cooling device of the present invention.
Wherein, 1, a compressor; 2. a plate heat exchanger; 3. an electromagnetic valve; 4. a throttling pressure reducing component; 5. an evaporator; 6. an air-cooled radiator; 7. and a circulating pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
A multi-stage heat exchange air-cooled heat dissipation system for an internal display cabinet comprises a refrigerant circulating device and a secondary refrigerant circulating and cooling device, wherein:
the refrigerant circulating device comprises a compressor 1, a plate heat exchanger 2, an electromagnetic valve 3, a throttling and pressure reducing part 4 and an evaporator 5 which are sequentially connected through pipelines as shown in figure 1, wherein the refrigerant enters the plate heat exchanger 2 in a mode of going in and going out from top to bottom, and the electromagnetic valve 3 can control the opening or closing of the refrigerant conveying which enters the evaporator 5.
The coolant circulating cooling device, as shown in fig. 2, includes an air-cooled radiator 6 and a circulating pump, and the coolant enters the plate heat exchanger 2 and the air-cooled radiator 6 in a downward-in and upward-out manner; when the refrigerant enters the plate heat exchanger 2 from top to bottom, the secondary refrigerant enters the plate heat exchanger 2 from bottom to top, and the heat exchange process between the refrigerant and the secondary refrigerant is completed more efficiently, so that a better heat exchange effect is achieved.
In particular, the throttling and pressure reducing part 4 is an expansion valve or a capillary tube, so that the refrigerant can be throttled and reduced in pressure, and the proper refrigerant flow can be provided.
In particular, when the system is abnormal, the electromagnetic valve 3 controls and cuts off the supply of the liquid refrigerant, and when the system is in failure, the supply of the refrigerant is cut off, so that the whole system can be effectively protected. In addition, the electromagnetic valve 3 can also control the opening and closing of the electromagnetic valve 3 through the temperature value of the thermal bulb, thereby controlling whether the liquid refrigerant flows into the evaporator 5.
Specifically, the operation flow of the refrigerant cycle device is as follows:
high-temperature and high-pressure refrigerant from the compressor 1 enters the plate heat exchanger 2, the high-temperature and high-pressure refrigerant and secondary refrigerant exchange heat in the plate heat exchanger 2, the high-temperature and high-pressure refrigerant is condensed into high-pressure liquid refrigerant, the liquid refrigerant enters the evaporator 5 through the throttling and pressure reducing part 4, the liquid refrigerant absorbs heat in the evaporator 5 and becomes gaseous, the gaseous low-temperature refrigerant is sucked back to the compressor 1 after being overheated in the evaporator 5 and is compressed into the high-temperature and high-pressure refrigerant again, the refrigerant circulating process is completed, and the operation is repeated in such a circulating way.
Specifically, the working process of the coolant circulation cooling device is as follows:
when the high-temperature high-pressure refrigerant and the secondary refrigerant exchange heat in the plate heat exchanger 2, the secondary refrigerant is heated, is discharged out of the plate heat exchanger 2 and is sent into the air-cooled radiator 6 through the circulating pump, the air-cooled radiator 6 sucks air in the environment through the powerful fan to cool the secondary refrigerant, the cooled secondary refrigerant is sent back to the plate heat exchanger 2 again, the secondary refrigerant circulating cooling process is completed, and the circulation is repeated.
In particular, the coolant is water.
Particularly, the air-cooled radiator 6 is a finned radiator and is vertically arranged in the box body, so that the heat exchange area is large.
In the utility model, the plate heat exchanger 2 is used as a water-cooling condenser, the heat exchange efficiency is high, and the occupied space is small; the heat-dissipating medium secondary refrigerant is liquid suitable for the ambient temperature of minus 50 ℃ to 50 ℃, and has wide application range.
The system uses the circulating secondary refrigerant to cool the high-temperature and high-pressure refrigerant discharged by the compressor 1, so that the heat exchange efficiency can be greatly improved, and meanwhile, a small-sized air-cooled radiator 6 is used for radiating the circulating secondary refrigerant, so that the heat of the indoor system is transferred to the outdoor environment; in addition, the problem that refrigerating system pressure is high can appear in the higher inevitable meeting of traditional air cooled condenser ambient temperature in summer, and pressure height will cause refrigeration effect poor, the utility model discloses can thoroughly solve the problem that refrigeration effect is poor and equipment frequently reports to the police.
Example 2
A multi-stage heat exchange air-cooled heat dissipation system for an internal display cabinet comprises a refrigerant circulating device and a secondary refrigerant circulating and cooling device, wherein:
the refrigerant circulating device comprises a compressor 1, a plate heat exchanger 2, an electromagnetic valve 3, a throttling and pressure reducing part 4 and an evaporator 5 which are sequentially connected through pipelines as shown in figure 1, wherein the refrigerant enters the plate heat exchanger 2 in a mode of going in and going out from top to bottom, and the electromagnetic valve 3 can control the opening or closing of the transmission of the refrigerant entering the evaporator 5 and the compressor 1.
The coolant circulating cooling device, as shown in fig. 2, includes an air-cooled radiator 6 and a circulating pump, and the coolant enters the plate heat exchanger 2 and the air-cooled radiator 6 in a downward-in and upward-out manner; when the refrigerant enters the plate heat exchanger 2 from top to bottom, the secondary refrigerant enters the plate heat exchanger 2 from bottom to top, and the heat exchange process between the refrigerant and the secondary refrigerant is completed more efficiently, so that a better heat exchange effect is achieved.
In particular, the throttling and pressure reducing part 4 is an expansion valve or a capillary tube, so that the refrigerant can be throttled and reduced in pressure, and the proper refrigerant flow can be provided.
In particular, when the system is abnormal, the electromagnetic valve 3 controls and cuts off the supply of the liquid refrigerant, and when the system is in failure, the supply of the refrigerant is cut off, so that the whole system can be effectively protected. In addition, the electromagnetic valve 3 can also control the opening and closing of the electromagnetic valve 3 through the temperature value of the thermal bulb, thereby controlling whether the liquid refrigerant flows into the evaporator 5.
Specifically, the operation flow of the refrigerant cycle device is as follows:
high-temperature and high-pressure refrigerant from the compressor 1 enters the plate heat exchanger 2, the high-temperature and high-pressure refrigerant and secondary refrigerant exchange heat in the plate heat exchanger 2, the high-temperature and high-pressure refrigerant is condensed into high-pressure liquid refrigerant, the liquid refrigerant enters the evaporator 5 through the throttling and pressure reducing part 4, the liquid refrigerant absorbs heat in the evaporator 5 and becomes gaseous, the gaseous low-temperature refrigerant is sucked back to the compressor 1 after being overheated in the evaporator 5 and is compressed into the high-temperature and high-pressure refrigerant again, the refrigerant circulating process is completed, and the operation is repeated in such a circulating way.
Specifically, the working process of the coolant circulation cooling device is as follows:
when the high-temperature high-pressure refrigerant and the secondary refrigerant exchange heat in the plate heat exchanger 2, the secondary refrigerant is heated, is discharged out of the plate heat exchanger 2 and is sent into the air-cooled radiator 6 through the circulating pump, the air-cooled radiator 6 sucks air in the environment through the powerful fan to cool the secondary refrigerant, the cooled secondary refrigerant is sent back to the plate heat exchanger 2 again, the secondary refrigerant circulating cooling process is completed, and the circulation is repeated.
Particularly, the selected refrigerating medium is glycol.
Particularly, the air-cooled radiator 6 is a finned radiator and is vertically arranged in the box body, so that the heat exchange area is large.
Example 3
A multi-stage heat exchange air-cooled heat dissipation system for an internal display cabinet comprises a refrigerant circulating device and a secondary refrigerant circulating and cooling device, wherein:
the refrigerant circulating device comprises a compressor 1, a plate heat exchanger 2, an electromagnetic valve 3, a throttling and pressure reducing part 4 and an evaporator 5 which are sequentially connected through pipelines as shown in figure 1, wherein the refrigerant enters the plate heat exchanger 2 in a mode of going in and going out from top to bottom, and the electromagnetic valve 3 can control the opening or closing of the transmission of the refrigerant entering the evaporator 5 and the compressor 1.
The coolant circulating cooling device, as shown in fig. 2, includes an air-cooled radiator 6 and a circulating pump, and the coolant enters the plate heat exchanger 2 and the air-cooled radiator 6 in a downward-in and upward-out manner; when the refrigerant enters the plate heat exchanger 2 from top to bottom, the secondary refrigerant enters the plate heat exchanger 2 from bottom to top, and the heat exchange process between the refrigerant and the secondary refrigerant is completed more efficiently, so that a better heat exchange effect is achieved.
In particular, the throttling and pressure reducing part 4 is an expansion valve or a capillary tube, so that the refrigerant can be throttled and reduced in pressure, and the proper refrigerant flow can be provided.
In particular, when the system is abnormal, the electromagnetic valve 3 controls and cuts off the supply of the liquid refrigerant, and when the system is in failure, the supply of the refrigerant is cut off, so that the whole system can be effectively protected. In addition, the electromagnetic valve 3 can also control the opening and closing of the electromagnetic valve 3 through the temperature value of the thermal bulb, thereby controlling whether the liquid refrigerant flows into the evaporator 5.
Specifically, the operation flow of the refrigerant cycle device is as follows:
high-temperature and high-pressure refrigerant from the compressor 1 enters the plate heat exchanger 2, the high-temperature and high-pressure refrigerant and secondary refrigerant exchange heat in the plate heat exchanger 2, the high-temperature and high-pressure refrigerant is condensed into high-pressure liquid refrigerant, the liquid refrigerant enters the evaporator 5 through the throttling and pressure reducing part 4, the liquid refrigerant absorbs heat in the evaporator 5 and becomes gaseous, the gaseous low-temperature refrigerant is sucked back to the compressor 1 after being overheated in the evaporator 5 and is compressed into the high-temperature and high-pressure refrigerant again, the refrigerant circulating process is completed, and the operation is repeated in such a circulating way.
Specifically, the working process of the coolant circulation cooling device is as follows:
when the high-temperature high-pressure refrigerant and the secondary refrigerant exchange heat in the plate heat exchanger 2, the secondary refrigerant is heated, is discharged out of the plate heat exchanger 2 and is sent into the air-cooled radiator 6 through the circulating pump, the air-cooled radiator 6 sucks air in the environment through the powerful fan to cool the secondary refrigerant, the cooled secondary refrigerant is sent back to the plate heat exchanger 2 again, the secondary refrigerant circulating cooling process is completed, and the circulation is repeated.
Particularly, the selected refrigerating medium is antifreeze.
Particularly, the air-cooled radiator 6 is a finned radiator and is vertically arranged in the box body, so that the heat exchange area is large.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. A multi-stage heat exchange air-cooled heat dissipation system for an internal display cabinet is characterized by comprising a refrigerant circulating device and a secondary refrigerant circulating and cooling device, wherein:
the refrigerant circulating device comprises a compressor, a plate heat exchanger, an electromagnetic valve, a throttling and pressure reducing part and an evaporator which are sequentially connected through pipelines, wherein the refrigerant enters the plate heat exchanger in an up-in-down-out mode, and the electromagnetic valve can control the opening or closing of the refrigerant conveying entering the evaporator;
the secondary refrigerant circulating cooling device comprises an air-cooled radiator and a circulating pump, and the secondary refrigerant enters the plate heat exchanger and the air-cooled radiator in a downward-in and upward-out mode.
2. The multi-stage heat exchange air-cooled heat dissipation system for built-in display cabinets of claim 1, wherein the refrigerant cycle device has a work flow of:
high-temperature and high-pressure refrigerant from the compressor enters the plate heat exchanger, the high-temperature and high-pressure refrigerant and secondary refrigerant exchange heat in the plate heat exchanger, the high-temperature and high-pressure refrigerant is condensed into high-pressure liquid refrigerant, the liquid refrigerant enters the evaporator through the throttling pressure reduction part, the liquid refrigerant absorbs heat in the evaporator and becomes gaseous, the gaseous low-temperature refrigerant is sucked back to the compressor after being overheated in the evaporator and is compressed into the high-temperature and high-pressure refrigerant again, the refrigerant circulating process is completed, and the process is repeated in such a circulating way.
3. The multi-stage heat exchange air-cooled heat dissipation system for built-in display cabinets of claim 1, wherein the throttling and pressure reducing component is an expansion valve or a capillary tube.
4. The multi-stage heat-exchange air-cooled heat dissipation system for built-in display cases of claim 1, wherein the solenoid valve controls to cut off the supply of the liquid refrigerant when an abnormality occurs in the system.
5. The multi-stage heat exchange air-cooled heat dissipation system for built-in display cabinets of claim 1, wherein the coolant circulating and cooling device has a working process that:
when the high-temperature high-pressure refrigerant and the secondary refrigerant exchange heat in the plate heat exchanger, the secondary refrigerant is heated, is discharged from the plate heat exchanger and is sent into the air-cooled radiator through the circulating pump, the air-cooled radiator absorbs air in the environment through the powerful fan to cool the secondary refrigerant, the cooled secondary refrigerant is sent back to the plate heat exchanger again to finish the circulating cooling process of the secondary refrigerant, and the process is repeated in a circulating manner.
6. The multi-stage heat exchange air-cooled heat dissipation system for built-in display cases of claim 5, wherein the coolant is a liquid suitable for use at ambient temperatures of-50 ℃ to 50 ℃.
7. The multi-stage heat exchange air-cooled heat dissipation system for built-in display cases of claim 6, wherein the coolant is selected from the group consisting of water, ethylene glycol, and antifreeze.
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| CN201920745053.4U CN210128524U (en) | 2019-05-23 | 2019-05-23 | Multistage heat exchange air-cooling heat dissipation system for built-in display cabinet |
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| CN201920745053.4U CN210128524U (en) | 2019-05-23 | 2019-05-23 | Multistage heat exchange air-cooling heat dissipation system for built-in display cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145883A (en) * | 2019-05-23 | 2019-08-20 | 青岛澳柯玛智慧冷链有限公司 | A kind of multi-stage heat exchanger water cooling system for built-in showcase |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145883A (en) * | 2019-05-23 | 2019-08-20 | 青岛澳柯玛智慧冷链有限公司 | A kind of multi-stage heat exchanger water cooling system for built-in showcase |
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