CN211575633U - Carbon dioxide carries cold and hot frost system of fluoridizing - Google Patents
Carbon dioxide carries cold and hot frost system of fluoridizing Download PDFInfo
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- CN211575633U CN211575633U CN201922259980.8U CN201922259980U CN211575633U CN 211575633 U CN211575633 U CN 211575633U CN 201922259980 U CN201922259980 U CN 201922259980U CN 211575633 U CN211575633 U CN 211575633U
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Abstract
The utility model relates to a carbon dioxide carries cold and hot Freon system, including the carbon dioxide circulation bucket that is equipped with liquid outlet and returns the liquid mouth, through the circulation pipeline intercommunication of connecting the circulating pump between liquid outlet and the liquid mouth that returns, the circulation pipeline is equipped with and carries cold heat transfer pipeline and backflow heat transfer pipeline, backflow heat transfer pipeline department is equipped with heat exchanger, the medium entry is connected the freon reservoir, the medium export is connected the induction port of compressor, the compressor gas vent passes through the condenser and is connected with the freon reservoir, the compressor installs the differential pressure valve on the blast pipe way; the cold-carrying heat exchange pipeline is provided with a defrosting heat exchange pipeline matched with the cold-carrying heat exchange pipeline, one end of the defrosting heat exchange pipeline is connected with the Freon liquid storage device, and the other end of the defrosting heat exchange pipeline is connected to the exhaust pipeline between the differential pressure valve and the exhaust port and is provided with a defrosting valve. The utility model discloses the accessible changes the frost pipe and carries out the heat transfer with carrying cold heat transfer pipeline with hot freon gas and carry the frosting on cold heat transfer pipeline surface in order to eliminate, has simplified the program of changing the frost, convenient operation moreover.
Description
Technical Field
The utility model relates to a refrigeration defrosting technical field, concretely relates to carbon dioxide carries cold and hot frost system of fluoridizing.
Background
The frosting problem in the existing refrigeration system is that electric heating defrosting or medium defrosting is generally adopted.
The electric heating defrosting is a typical 'point' defrosting, forced heat exchange is carried out by electrifying a heating pipe and defrosting from outside to inside, and the main heat transfer modes are convection and radiation. The electric heating defrosting is only better to the effect of clearing away of frosting near the heating pipe, and the place far away from the heating pipe is uneven owing to being heated, at the defrosting in-process, because the inhomogeneity of electric heating defrosting, the incomplete frost that leaves over after the defrosting at every turn constantly accumulates and causes the stifled trouble of ice of system, has increased the fault rate of system, and the defrosting time is long, and power consumption is big.
The medium defrosting is adopted, the medium of the refrigeration system is replaced by the high-temperature medium, the high-temperature medium is introduced into a pipeline of the refrigeration system, heat exchange is carried out from inside to outside through heat conduction to remove frost on the surface, although the defrosting effect can be well achieved by the operation mode, due to the fact that the medium in the refrigeration system needs to be replaced, operation is inconvenient, two media in the system can coexist easily in the medium replacing process, and the refrigeration effect of the whole system is easily influenced for a long time.
How to solve the above-mentioned various disadvantages caused by defrosting is the subject faced at present.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a carbon dioxide carries cold and hot frost system of fluorinating, can be with the hot freon gas that is used for carrying cold heat transfer through changing the frost pipe and carrying out the heat exchange between the cold heat transfer pipeline, eliminate and carry frosting on the cold heat transfer pipeline, can carry cold and change the frost and independently go on, easy operation, it is efficient to change the frost moreover.
The utility model discloses a realize through following technical scheme:
provides a carbon dioxide cold-carrying and hot-carrying fluorinated frost system,
including the carbon dioxide recycling bin that is equipped with liquid outlet and liquid return mouth, through the circulation pipeline intercommunication of connecting the circulating pump between liquid outlet and the liquid return mouth, the circulation pipeline is equipped with and carries cold heat transfer pipeline and reflux heat transfer pipeline, wherein:
the heat exchanger is arranged at the position of the reflux heat exchange pipeline and is provided with a medium inlet and a medium outlet, the medium inlet is connected with a Freon liquid storage device, the medium outlet is connected with an air suction port of the compressor, an air exhaust port of the compressor is connected with the condenser through an exhaust pipeline and is connected with the Freon liquid storage device through the condenser, and the compressor is provided with a differential pressure valve on the exhaust pipeline;
the cold-carrying heat exchange pipeline is provided with a defrosting heat exchange pipeline matched with the cold-carrying heat exchange pipeline, one end of the defrosting heat exchange pipeline is connected with the Freon liquid storage device, and the other end of the defrosting heat exchange pipeline is connected on the exhaust pipeline between the differential pressure valve and the exhaust port and is provided with a defrosting valve.
This scheme is through adding the defrosting pipe of establishing in year cold heat transfer pipeline department, at the normal cold in-process that carries, the defrosting valve is closed, and low temperature freon forms high temperature freon after the carbon dioxide medium heat transfer with refrigeration back temperature rising, and when changing the frost, the defrosting valve is opened, and it is intraductal to carry the frosting on cold heat transfer pipeline surface to carry in the defrosting pipe to introduce to carry high temperature high pressure freon cold in-process heat transfer back to heat to eliminate its attached frost on surface.
The differential pressure valve can adjust the pressure difference of compressed freon gas which is introduced into the condenser and into the defrosting pipe in the compressor, so that when defrosting, high-temperature and high-pressure freon gas in the compressor is introduced into the defrosting pipe, and when the freon gas is introduced into the freon liquid storage device and passes through the cold-carrying heat exchange pipeline, the frosting of the cold-carrying heat exchange pipeline is heated by utilizing the heat exchange principle, and the defrosting purpose is achieved.
Preferably, the defrosting heat exchange pipeline is positioned right below the cold-carrying heat exchange pipeline, and the pipe wall of the defrosting heat exchange pipeline is connected with the pipe wall of the cold-carrying heat exchange pipeline through fins.
The defrosting pipe is located and carries cold heat transfer pipeline under, can carry out the heat transfer through the fin through the gaseous heat dissipation of the intraductal high temperature freon of defrosting, carries cold heat transfer pipeline surface to defrost, improves heat transfer efficiency.
Preferably, the defrosting heat exchange pipeline, the cold-carrying heat exchange pipeline and the middle fin are of a die-casting integrated structure.
The defrosting heat exchange pipeline, the cold-carrying heat exchange pipeline and the fins in the middle are integrally formed, so that the processing is convenient, and the cost is saved.
The utility model has the advantages that:
compare in prior art's defrosting operation, the utility model discloses an add the defrosting pipe of establishing linking to each other with the freon reservoir, when utilizing the refrigeration to carry cold, the high-pressure high temperature freon gas that obtains through the heat transfer carries out the heat exchange to carrying cold heat transfer pipeline, realizes changing the frost purpose, its easy operation, convenience, save time cost, the flexible operation moreover changes the frost efficiently, compares in the electrical heating defrosting moreover, more practices thrift the electric energy.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic cross-sectional view of the medium-load cooling and heat exchange pipeline and the defrosting pipe of the present invention.
Shown in the figure:
1. the device comprises a carbon dioxide circulating barrel, 2, a circulating pump, 3, a cold-carrying heat exchange pipeline, 4, a reflux heat exchange pipeline, 5, a defrosting heat exchange pipeline, 6, a Freon liquid storage device, 7, a heat exchanger, 8, a compressor, 9, a condenser, 10, a differential pressure valve, 11, a defrosting valve, 12, fins, 13, upper fins, 14 and lower fins.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
The carbon dioxide carries cold and hot Freon fluoride white system, is including being equipped with liquid outlet and returning the carbon dioxide recycling bin 1 of liquid mouth, through the circulation line intercommunication of connecting circulating pump 2 between liquid outlet and the liquid mouth that returns, the circulation line is equipped with heat transfer pipeline 4 and carries cold heat transfer pipeline 3.
Wherein:
4 departments of heat-transfer line of backward flow are provided with heat exchanger 7, and heat exchanger 7 is equipped with medium entry and medium export, and the medium entry is connected with freon reservoir 6, and the medium exit linkage has compressor 8, and compressor 8 is equipped with first gas outlet and second gas outlet, and compressor 8 is connected through condenser 9 between first gas outlet and freon reservoir 6, and compressor 8 installs differential pressure valve 10 on the blast pipe way.
The cold-carrying heat exchange pipeline 3 is provided with a defrosting heat exchange pipeline 5 matched with the cold-carrying heat exchange pipeline 3, one end of the defrosting heat exchange pipeline 5 is connected with a Freon liquid storage device 6, and the other end of the defrosting heat exchange pipeline 5 is connected on an exhaust pipeline between the differential pressure valve 10 and an exhaust port and is provided with a defrosting valve 11.
The defrosting heat exchange pipeline 5 is positioned right below the cold-carrying heat exchange pipeline 3, and the pipe wall of the defrosting heat exchange pipeline 5 is connected with the pipe wall of the cold-carrying heat exchange pipeline 3 through the fins 12. For convenience of processing, the defrosting heat exchange pipeline 5, the cold-carrying heat exchange pipeline 3 and the middle fin 12 are of a die-casting integrated structure.
The utility model discloses in, change frost heat transfer pipeline 5 and be the aluminium system pipe, fin 12 also is the aluminium system fin, carries cold heat transfer pipeline 3 also to be the aluminium system pipeline, and for increasing heat exchange efficiency, still be provided with on carrying cold heat transfer pipeline 3 with middle fin 12 symmetry and be located the last fin 13 that carries cold heat transfer pipeline 3 top, equally, be equipped with in the below of changing frost heat transfer pipeline 5 with middle fin 12 symmetrical lower fin 14, the length of upper and lower fin generally sets up to 15 cm. And the defrosting heat exchange pipeline 5, the cold-carrying heat exchange pipeline 3, the upper fins 13, the fins 12 and the lower fins 14 are integrally formed.
The utility model discloses a working process:
when the system normally refrigerates, the defrosting valve 11 is in a closed state, at the moment, carbon dioxide liquid in the carbon dioxide circulating barrel 1 is continuously conveyed to the pipeline under the action of the circulating pump 2, heat exchange is carried out through the cold-carrying heat exchange pipeline 3, heat absorption and temperature rise are carried out in the heat return heat exchange pipeline 4, the heat exchanger 7 arranged at the position of the heat return heat exchange pipeline 4 is used, and low-temperature Freon in the Freon liquid storage device 6 enters the heat exchanger 7 to be liquefied with high-temperature carbon dioxide heat exchange so that carbon dioxide is liquefied and flows back to the carbon dioxide circulating barrel 1 to circulate. And the low-temperature Freon exchanges heat with carbon dioxide in the return heat exchange pipeline 4 through the heat exchanger 7, then the high-temperature and high-pressure Freon gas is obtained after the pressure is increased through the compressor 8, the high-temperature and high-pressure Freon gas enters the condenser 9 to be condensed and liquefied, and the low-temperature Freon liquid returns to the Freon liquid storage 6 to carry out circulating heat exchange.
When the system needs defrosting, the running of the pipeline connected with the carbon dioxide circulating barrel 1 is stopped, the defrosting valve 11 is opened, the differential pressure valve 10 is adjusted, so that the Freon in the heat exchanger 7 enters the defrosting heat exchange pipeline 5 after the temperature and the pressure of the compressor 8 are raised, the Freon gas with high temperature is radiated to the cold-carrying heat exchange pipeline 3 by the defrosting heat exchange pipeline 5 and the fins 12, the radiated heat can heat the condensed frost on the cold-carrying heat exchange pipeline 3 above, the purpose of defrosting can be realized, after heat exchange, the high-temperature Freon gas is liquefied and flows back to the Freon liquid storage device 6 to reenter the pipeline of the heat exchanger 7 for heat exchange, after defrosting is finished, and closing the defrosting valve 11, adjusting the regulating valve 10, cutting off the supply of Freon to the defrosting heat exchange pipeline 5, and enabling all Freon gas in the compressor 8 to enter the condenser 9 for condensation to be used for the heat exchanger 7 to perform heat exchange circulation.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (3)
1. A carbon dioxide carries cold and hot fluorination frost system which characterized in that:
including the carbon dioxide recycling bin who is equipped with liquid outlet and returns the liquid mouth, through the circulation pipeline intercommunication of connecting the circulating pump between liquid outlet and the liquid mouth that returns, circulation pipeline is equipped with the heat transfer pipeline of backward flow and carries cold heat transfer pipeline, wherein:
the heat exchanger is arranged at the position of the reflux heat exchange pipeline and is provided with a medium inlet and a medium outlet, the medium inlet is connected with a Freon liquid storage device, the medium outlet is connected with an air suction port of the compressor, an air exhaust port of the compressor is connected with the condenser through an exhaust pipeline and is connected with the Freon liquid storage device through the condenser, and the compressor is provided with a differential pressure valve on the exhaust pipeline;
the cold-carrying heat exchange pipeline is provided with a defrosting heat exchange pipeline matched with the cold-carrying heat exchange pipeline, one end of the defrosting heat exchange pipeline is connected with the Freon liquid storage device, and the other end of the defrosting heat exchange pipeline is connected on the exhaust pipeline between the differential pressure valve and the exhaust port and is provided with a defrosting valve.
2. The carbon dioxide cold and hot-carrying fluorination cream system according to claim 1, wherein: the defrosting heat exchange pipeline is positioned right below the cold-carrying heat exchange pipeline, and the pipe wall of the defrosting heat exchange pipeline is connected with the pipe wall of the cold-carrying heat exchange pipeline through fins.
3. The carbon dioxide cold and hot-carrying fluorination cream system according to claim 2, wherein: the defrosting heat exchange pipeline, the cold-carrying heat exchange pipeline and the fins in the middle are of a die-casting integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922259980.8U CN211575633U (en) | 2019-12-17 | 2019-12-17 | Carbon dioxide carries cold and hot frost system of fluoridizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922259980.8U CN211575633U (en) | 2019-12-17 | 2019-12-17 | Carbon dioxide carries cold and hot frost system of fluoridizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211575633U true CN211575633U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922259980.8U Active CN211575633U (en) | 2019-12-17 | 2019-12-17 | Carbon dioxide carries cold and hot frost system of fluoridizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211575633U (en) |
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2019
- 2019-12-17 CN CN201922259980.8U patent/CN211575633U/en active Active
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