CN201837133U - Carbon dioxide refrigeration system of refrigerator - Google Patents
Carbon dioxide refrigeration system of refrigerator Download PDFInfo
- Publication number
- CN201837133U CN201837133U CN2010202704976U CN201020270497U CN201837133U CN 201837133 U CN201837133 U CN 201837133U CN 2010202704976 U CN2010202704976 U CN 2010202704976U CN 201020270497 U CN201020270497 U CN 201020270497U CN 201837133 U CN201837133 U CN 201837133U
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- CN
- China
- Prior art keywords
- carbon dioxide
- hydraulic cylinder
- hydraulic
- cooler
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A carbon dioxide refrigeration system of a refrigerator comprises an oil pump, a reversing valve, a hydraulic cylinder, an oil tank, a cooler, a throttling valve and an evaporator. The principle of operation includes that the hydraulic oil generated during the operation of the oil pump alternately enters the left hydraulic oil chamber and the right hydraulic oil chamber of the hydraulic cylinder to push a piston to conduct transverse movement; the carbon dioxide gas in the left gas cavity and the right gas cavity is compressed and pushed into the cooler, and releases heat and cools down and in the cooler; and the carbon dioxide gas is decompressed and liquefied through the throttling valve, and then enters the evaporator to absorb heat and evaporate for refrigeration. Through adoption of hydraulic pump to generate hydraulic oil, the system can easily obtain high compression pressure; and the system compresses the carbon dioxide gas by use of the hydraulic cylinder. Moreover, the gas leakage is small, resulting in higher gas transmission efficiency.
Description
Technical field
The utility model belongs to refrigeration technology field.
Background technology
Now, human to protecting ozone layer and climate warming problem more and more to pay attention to, make this environment amenable cold-producing medium of carbon dioxide be subjected to people's attention again.But this refrigeration system must could fully be freezed under the pressure of 140 crust.For this reason, need to bear the compressor of high pressure, therefore carbon-dioxide gas compressor is had higher requirement.
The utility model content
The purpose of this utility model provides a kind of refrigerating system, and this system adopts hydraulic pump to produce hydraulic oil, and realizes compression to carbon dioxide with hydraulic cylinder; Can obtain high compression pressure easily, and have high gas transmission efficient; Reach energy-conservation and the environmental protection purpose.
Structure of the present utility model is made up of evaporimeter, cooler, choke valve, hydraulic cylinder, reversal valve, oil pump, fuel tank.Hydraulic cylinder wherein is made up of piston and hydraulic cylinder.Hydraulic cylinder is divided into symmetrical two parts by dividing plate, is shaped on left and right control chamber on the dividing plate; Piston is symmetrical two sections compositions, forms symmetrical four chambeies between piston and the hydraulic cylinder, and two middle chambeies are used to feed hydraulic oil, and two chambeies on both sides are used to feed carbon dioxide; Between piston rod and piston, be shaped on the piston control section, be used for cooperating the commutation that realizes reversal valve with control chamber on the hydraulic cylinder.Reversal valve links to each other with oil pump, and hydraulic cylinder links to each other with evaporimeter and cooler by check valve, establishes choke valve between cooler and the evaporimeter.
Operation principle: when oil pump is started working, reversal valve is in position, a left side under the effect of return spring, the hydraulic oil that oil pump produces enters hydraulic cylinder left side hydraulic fluid chamber by reversal valve, promote piston to left movement, enter cooler with the carbon dioxide in left air cavity compression and by exhaust check valve, in cooler the heat release cooling and through choke valve further lower the temperature, step-down liquefaction is laggard goes into evaporimeter heat absorption sweat cooling.Simultaneously, the steam of generation is inhaled into the right air cavity of hydraulic cylinder through breather cheek valve; When the gas of the left air cavity of hydraulic cylinder is excluded, when the piston control section on the right moved to right control chamber position, the hydraulic oil in the right control chamber was pressurized, promoted the reversal valve commutation by the control oil circuit and was in right position; Realize commutation.The hydraulic oil that oil pump produces enters the right hydraulic fluid chamber of hydraulic cylinder by reversal valve, and the carbon dioxide in the right air cavity is pressed into cooler.When the gas of the right air cavity of hydraulic cylinder is excluded, when the piston control section on the left side moved to left control chamber position, the hydraulic oil in the left control chamber was pressurized, promoted the reversal valve control valve by the control oil circuit and was in right position conducting, made the reversal valve commutation be in position, a left side.Because adopt hydraulic pump to produce hydraulic oil, and by the compression of hydraulic cylinder realization to gas; The leakage of gas is few.Has higher volumetric efficiency.
Description of drawings
Accompanying drawing is the utility model system diagram, among the figure: 1 fuel tank, 2 oil pumps, 3 reversal valves, 4 hydraulic cylinders, 5 air cavitys, 6 pistons, 7 hydraulic fluid chambers, 8 exhaust check valves, 9 coolers, 10 choke valves, 11 evaporimeters, 12 reversal valve control valves, 13 commutation control oil circuits, 14 piston control sections, 15 piston rods, 16 control chambers, 17 dividing plates, 18 breather cheek valves.
The specific embodiment
The oil pump of refrigerator carbon dioxide refrigerating system (2), reversal valve (3), hydraulic cylinder (4) connect successively with pipeline in the accompanying drawing, and place in the metal can of a sealing; Cooler (9), choke valve (10), evaporimeter (11), hydraulic cylinder (4) connect successively with tracheae.
Claims (1)
1. refrigerator carbon dioxide refrigerating system, it is characterized in that: the refrigerator carbon dioxide refrigerating system is made up of oil pump, reversal valve, hydraulic cylinder, fuel tank, cooler, choke valve, evaporimeter; Hydraulic cylinder wherein is made up of piston and hydraulic cylinder, and hydraulic cylinder is divided into symmetrical two parts by dividing plate, is shaped on left and right control chamber on the dividing plate, and piston is formed by symmetrical two sections; Form symmetrical four chambeies between piston and the hydraulic cylinder, two middle chambeies are used to feed hydraulic oil, and two chambeies on both sides are used to feed carbon dioxide; Between piston rod and piston, be shaped on the piston control section, be used for cooperating the commutation that realizes reversal valve with control chamber on the dividing plate; Reversal valve links to each other with oil pump, and hydraulic cylinder links to each other with evaporimeter and cooler by check valve, establishes choke valve between cooler and the evaporimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202704976U CN201837133U (en) | 2010-07-26 | 2010-07-26 | Carbon dioxide refrigeration system of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202704976U CN201837133U (en) | 2010-07-26 | 2010-07-26 | Carbon dioxide refrigeration system of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837133U true CN201837133U (en) | 2011-05-18 |
Family
ID=44007243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202704976U Expired - Fee Related CN201837133U (en) | 2010-07-26 | 2010-07-26 | Carbon dioxide refrigeration system of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257504A (en) * | 2015-10-19 | 2016-01-20 | 山西杉大科能自动化科技有限公司 | Dual-symmetric CO2 heat pump compression and expansion device |
-
2010
- 2010-07-26 CN CN2010202704976U patent/CN201837133U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257504A (en) * | 2015-10-19 | 2016-01-20 | 山西杉大科能自动化科技有限公司 | Dual-symmetric CO2 heat pump compression and expansion device |
| CN105257504B (en) * | 2015-10-19 | 2018-01-19 | 山西杉大科能自动化科技有限公司 | It is double to formula CO2Heat pump compression-expansion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20120726 |