CN101825378A - Refrigerating system with exhaust cooling back-heating device - Google Patents
Refrigerating system with exhaust cooling back-heating device Download PDFInfo
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- CN101825378A CN101825378A CN200910047104A CN200910047104A CN101825378A CN 101825378 A CN101825378 A CN 101825378A CN 200910047104 A CN200910047104 A CN 200910047104A CN 200910047104 A CN200910047104 A CN 200910047104A CN 101825378 A CN101825378 A CN 101825378A
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Abstract
The invention relates to a refrigerating system, in particular to a refrigerating system with an exhaust cooling back-heating device. The refrigerating system is mainly used for refrigerating equipment with a compressor. The structure of the refrigerating system comprises the compressor, a condenser, a dry filter, a throttle expansion valve, an evaporator and the exhaust cooling back-heating device; the output end of the compressor is connected with the exhaust cooling back-heating device, the condenser, the dry filter, the throttle expansion valve and the evaporator in turn; and the other end of the evaporator passes through the exhaust cooling back-heating device and then is connected with a return pipe of the compressor. On the one hand, the refrigerating system can directly cool the exhaust of the compressor, reduce the cooling load of the condenser of the refrigerating system and further increase the super-cooling degree of the system; and on the other hand, the refrigerating system can utilize effective over-heat of evaporated refrigerant steam so as to further improve the performance coefficient of the refrigerating system. The refrigerating system has the advantages of simple structure, easy manufacture, low cost, long-term operation, no need of maintenance, no direct consumption of mechanical energy, capability of improving the comprehensive performance of the refrigerating system and the like.
Description
Technical field
The present invention relates to a kind of refrigeration system, this refrigeration system has energy saver, and refering in particular to is a kind of refrigeration system with exhaust cooling back-heating device.
Background technology
Along with the development of society, electric refrigerator is more and more universal, and the power saving of refrigeration device more and more receives publicity.The present domestic displaying refrigerator-freezer that is used for big or small market on average consumes energy bigger, and loss of refrigeration capacity is also big simultaneously, and different refrigeration requirement has different loss of refrigeration capacity.
Existing refrigeration system generally is made up of compressor, condenser, filter, choke valve and evaporimeter etc., charges into an amount of cold-producing medium in refrigeration system.High pressure refrigerant liquid in condenser enters evaporimeter through the choke valve step-down, and the start vaporizer heat absorption makes internal cooling under the low pressure condition; Absorbed heat in the cabinet, in-cabinet temperature is reduced.The cold-producing medium that is evaporated to gas is drawn onto in the machine by compressor, and the compressed HTHP gaseous state that becomes is delivered to condenser.When flowing through condenser, condense for liquid, deliver in the cabinet once more through choke valve to the ambient air heat radiation.Said process goes round and begins again and ceaselessly carries out, and finishes continuous kind of refrigeration cycle.So constantly circulation just can make temperature inside lower.In whole circulation, cold-producing medium is to absorb heat in the cabinet by evaporimeter, by condenser the heat that absorbs is dispersed into outside the cabinet again.
Said structure need consume a large amount of electric energy, therefore, how further to reduce the energy consumption of showing refrigerator-freezer and just seem necessary, if can on its refrigeration system, realize the energy-conservation of a certain link, improve the coefficient of performance of whole refrigeration system, so just can saves energy, reduce State Grid's pressure greatly.
Summary of the invention
Technical problem to be solved by this invention is to overcome the technological deficiency that exists in the existing display refrigerator refrigeration system, and provide a kind of simple in structure, improve the heat exchange efficiency between refrigeration system return-air and the exhaust, utilization enters cold-producing medium effectively overheated of compressor, make the refrigerant temperature that enters condenser reduce, improve the refrigeration system exhaust cooling back-heating device of performance of refrigerant systems coefficient.
For solving the problems of the technologies described above, the present invention is achieved by following technical proposals:
A kind of refrigeration system with exhaust cooling back-heating device, comprise compressor 1, condenser 3, device for drying and filtering 4, throttle expansion valve 5 and evaporimeter 6, it is characterized in that: described refrigeration system also comprises an exhaust cooling back-heating device 2, the output of described compressor 1 is connected with exhaust cooling back-heating device 2, condenser 3, device for drying and filtering 4, throttle expansion valve 5 and evaporimeter 6 successively, and the other end of described evaporimeter 6 is connected with the muffler of compressor 1 by exhaust cooling back-heating device 2 backs.
Described exhaust cooling back-heating device 2 comprises evaporator outlet adapter 7, return-air-exhaust gas heat exchanging pipe 8, compressor return air adapter 9 and compressor exhaust pipe 10; One end of described return-air-exhaust gas heat exchanging pipe 8 and evaporator outlet are taken over 7 and are welded together, and the other end of return-air-exhaust gas heat exchanging pipe 8 and compressor return air are taken over 9 and welded together, and constitute a return-air circulation device that is communicated with; Described compressor exhaust pipe 10 directly carries out integrally welded from compressor 1 output back and return-air-exhaust gas heat exchanging pipe 8, constitute muffler-blast pipe heat exchanger, is connected with condenser 3 through the blast pipe after the heat exchange again.
Among the present invention, described piping connection portion all adopts oxygen welding or soldering or the weldering of argon fluorine to connect.
Among the present invention, described exhaust cooling back-heating device 2 is a double pipe heat exchanger.
Among the present invention, the material of described return-air-exhaust gas heat exchanging pipe 8 can be copper pipe, aluminum pipe or Bandaid pipe.
Beneficial effect of the present invention, the present invention is owing to adopt said structure, made full use of the exchange heat between the compressor return air pipe and blast pipe in the refrigeration system, utilization is directly carried out exchange heat by the refrigerant vapour that evaporimeter comes out by muffler and compressor exhaust pipe, one side is the cooling compressor blast pipe directly, reduce the refrigerant vapour temperature that enters condenser, and then reduce the condensation load of refrigeration system operation, increase the degree of supercooling of system; Can utilize the effectively overheated of the refrigerant vapour that enters compressor on the other hand, thereby effectively utilize the heat in the refrigeration system, improve the coefficient of performance of refrigeration system.
In sum, that the present invention-a kind of refrigeration system with exhaust cooling back-heating device has is simple in structure, easy to manufacture, cost is low, do not have any moving component, can long-time running, Maintenance free, directly do not consume mechanical energy, can realize effectively advantage such as exchange of heat; Can connect mutually with refrigeration system pipeline at an easy rate, be applicable to the display refrigerator refrigeration system, become refrigeration system and realize energy-conservation most important parts, thereby realize reducing refrigerator complete machine power consumption, reach purpose of energy saving.
Description of drawings
Fig. 1 is an operation principle schematic diagram of the present invention;
Fig. 2 is a structural representation of the present invention.
Among accompanying drawing 1 and Fig. 2,1-compressor, 2-exhaust cooling back-heating device, 3-condenser, 4-device for drying and filtering, 5-throttle expansion valve, 6-evaporimeter, the adapter of 7-evaporator outlet, 8-return-air-exhaust gas heat exchanging pipe, 9-compressor return air are taken over, the 10-compressor exhaust pipe.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of this refrigeration system in detail.
Referring to shown in Figure 1, a kind of refrigeration system exhaust cooling back-heating device comprises compressor 1, exhaust cooling back-heating device 2, condenser 3, device for drying and filtering 4, throttle expansion valve 5, evaporimeter 6.The output of described compressor 1 is connected with exhaust cooling back-heating device 2, condenser 3, device for drying and filtering 4, throttle expansion valve 5 and evaporimeter 6 successively, and the other end of described evaporimeter 6 is connected with the muffler of compressor 1 by exhaust cooling back-heating device 2 backs.
Referring to shown in Figure 2, above-mentioned refrigeration system exhaust cooling back-heating device 2 comprises evaporator outlet adapter 7, return-air-exhaust gas heat exchanging pipe 8, compressor return air adapter 9 and compressor exhaust pipe 10.Described return-air-exhaust gas heat exchanging pipe 8 left ends and evaporator outlet are taken over 7 and are welded together, and right-hand member and compressor return air are taken over 9 and welded together, and constitute a return-air circulation device that is communicated with; Compressor exhaust pipe 10 directly carries out oxygen welding from compressor 1 output back with return-air-exhaust gas heat exchanging pipe 8 and is connected, constitute muffler-blast pipe heat exchanger, be refrigeration system exhaust cooling back-heating device 2 of the present invention, be connected with condenser 3 again through the blast pipe after the heat exchange then.
Evaporimeter 6 to the muffler of compressor carries out oxygen welding by a heat exchange copper tube and blast pipe and is connected, constitute muffler-blast pipe heat exchanger, soaker through exchange heat directly links to each other with condenser 3, connect device for drying and filtering 4, throttle expansion valve 5 and evaporimeter 6 afterwards successively, cold-producing medium by evaporimeter 6 outlets circulates in muffler-blast pipe heat exchanger, compressor 1 blast pipe is directly cooled off, reduce delivery temperature, in addition, can raise through the refrigerant vapour temperature after the heat exchange, utilize the effectively overheated of refrigerant vapour, entered compressor 1 then.
Among the present invention, described piping connection portion all adopts oxygen welding or soldering or the weldering of argon fluorine to connect.
Among the present invention, described exhaust cooling back-heating device 2 is a double pipe heat exchanger, and the pipeline material of described return-air-exhaust gas heat exchanging pipe 8 can be selected copper pipe, aluminum pipe or Bandaid pipe for use, and other can use the pipeline material in the refrigeration plant.
Embodiment one
Refrigeration system exhaust cooling back-heating device 2 as described in Figure 2 comprises evaporator outlet adapter 7, return-air-exhaust gas heat exchanging pipe 8, compressor return air adapter 9 and compressor exhaust pipe 10.It is common copper pipe or aluminum pipe that described evaporator outlet takes over 7, and internal diameter is 16mm, and length is about 150mm; Return-air-exhaust gas heat exchanging pipe 8 is a copper pipe, and internal diameter is 28mm, and length is about 250mm, and one end and evaporator outlet are taken over 7 and welded together, and the other end and compressor return air are taken over 9 and welded together, and constitute a return-air circulation device that is communicated with; It is common copper pipe or aluminum pipe that compressor return air takes over 9, and internal diameter is 16mm, and length is about 150mm, and length is decided when welding with compressor; Compressor exhaust pipe 10 is common copper pipe or aluminum pipe, internal diameter is 10mm, length is about 500mm, it directly carries out oxygen welding from compressor 1 output back with return-air-exhaust gas heat exchanging pipe 8 and is connected, constitute muffler-blast pipe heat exchanger, be the exhaust cooling back-heating device 2 among the present invention, be about 200mm, be connected with condenser through the part of the blast pipe after the heat exchange with return-air-exhaust gas heat exchanging pipe 8 weld lengths.All pipe joints all adopt oxygen welding or soldering or the weldering of argon fluorine to connect among the present invention.
Range of application of the present invention is not limited only in the display refrigerator cooling cycle system, as a kind of energy-conservation refrigeration system, can be applied to domestic refrigerator, air-conditioning and other similarly have in the system of compressor, design the compressor that is complementary with original refrigeration system, in refrigeration system, increase the exhaust cooling back-heating energy saver with same heat exchange energy-saving effect.
Claims (5)
1. refrigeration system with exhaust cooling back-heating device, comprise compressor (1), condenser (3), device for drying and filtering (4), throttle expansion valve (5) and evaporimeter (6), it is characterized in that: described refrigeration system also comprises an exhaust cooling back-heating device (2), the output of described compressor (1) is connected with exhaust cooling back-heating device (2), condenser (3), device for drying and filtering (4), throttle expansion valve (5) and evaporimeter (6) successively, and the other end of described evaporimeter (6) is connected with the muffler of compressor (1) by exhaust cooling back-heating device (2) back.
2. a kind of refrigeration system with exhaust cooling back-heating device according to claim 1 is characterized in that: described exhaust cooling back-heating device (2) comprises that evaporator outlet is taken over (7), return-air-exhaust gas heat exchanging pipe (8), compressor return air is taken over (9) and compressor exhaust pipe (10); One end of described return-air-exhaust gas heat exchanging pipe (8) and evaporator outlet are taken over (7) and are welded together, and the other end of return-air-exhaust gas heat exchanging pipe (8) and compressor return air are taken over (9) and welded together, and constitute a return-air circulation device that is communicated with; Described compressor exhaust pipe (10) directly carries out integrally welded from compressor (1) output back and return-air-exhaust gas heat exchanging pipe (8), constitute muffler-blast pipe heat exchanger, is connected with condenser (3) through the blast pipe after the heat exchange again.
3. a kind of refrigeration system with exhaust cooling back-heating device according to claim 1 and 2 is characterized in that: described piping connection portion all adopts oxygen welding or soldering or the weldering of argon fluorine to connect.
4. a kind of refrigeration system with exhaust cooling back-heating device according to claim 1 and 2 is characterized in that: described exhaust cooling back-heating device (2) is a double pipe heat exchanger.
5. a kind of refrigeration system with exhaust cooling back-heating device according to claim 2 is characterized in that: the material of described return-air-exhaust gas heat exchanging pipe (8) is copper pipe or aluminum pipe or Bandaid pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047104A CN101825378A (en) | 2009-03-05 | 2009-03-05 | Refrigerating system with exhaust cooling back-heating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910047104A CN101825378A (en) | 2009-03-05 | 2009-03-05 | Refrigerating system with exhaust cooling back-heating device |
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| CN101825378A true CN101825378A (en) | 2010-09-08 |
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| CN200910047104A Pending CN101825378A (en) | 2009-03-05 | 2009-03-05 | Refrigerating system with exhaust cooling back-heating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004107A (en) * | 2015-07-24 | 2015-10-28 | 合肥美的电冰箱有限公司 | Air return pipe of refrigerator |
| CN107883495A (en) * | 2017-11-23 | 2018-04-06 | 上海加冷松芝汽车空调股份有限公司 | Air-conditioning system |
| CN110332744A (en) * | 2019-07-15 | 2019-10-15 | 珠海格力电器股份有限公司 | For the control device of refrigeration system, method and refrigeration system |
| CN111936809A (en) * | 2018-06-27 | 2020-11-13 | Lg电子株式会社 | Vacuum insulation body and refrigerator |
-
2009
- 2009-03-05 CN CN200910047104A patent/CN101825378A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004107A (en) * | 2015-07-24 | 2015-10-28 | 合肥美的电冰箱有限公司 | Air return pipe of refrigerator |
| CN107883495A (en) * | 2017-11-23 | 2018-04-06 | 上海加冷松芝汽车空调股份有限公司 | Air-conditioning system |
| CN111936809A (en) * | 2018-06-27 | 2020-11-13 | Lg电子株式会社 | Vacuum insulation body and refrigerator |
| CN111936809B (en) * | 2018-06-27 | 2022-08-26 | Lg电子株式会社 | Vacuum insulation body and refrigerator |
| US11740008B2 (en) | 2018-06-27 | 2023-08-29 | Lg Electronics Inc. | Vacuum adiabatic body and refrigerator |
| CN110332744A (en) * | 2019-07-15 | 2019-10-15 | 珠海格力电器股份有限公司 | For the control device of refrigeration system, method and refrigeration system |
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Application publication date: 20100908 |