CN203893503U - Barrel pump unit forced oil return device - Google Patents
Barrel pump unit forced oil return device Download PDFInfo
- Publication number
- CN203893503U CN203893503U CN201420248327.6U CN201420248327U CN203893503U CN 203893503 U CN203893503 U CN 203893503U CN 201420248327 U CN201420248327 U CN 201420248327U CN 203893503 U CN203893503 U CN 203893503U
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- CN
- China
- Prior art keywords
- heat exchanger
- barrel
- oil return
- pump unit
- freon
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- Expired - Fee Related
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Abstract
The utility model relates to a barrel pump unit forced oil return device. A barrel pump unit circulating barrel oil returning port is connected to a first heat exchanger and a second heat exchanger sequentially to connect to a compressor. The device has the advantages that the oil returning efficiency force effect in a freon pump liquid feeding system is achieved, and the refrigerating efficiency is improved by increasing the super-cooling degree of freon liquid from an economizer and freon gas exhausted by the compressor.
Description
Technical field
The utility model relates to a kind of oil return apparatus, is specially a kind of barrel pump unit strengthening oil return apparatus.
Background technology
Along with freon barrel pump unit more and more uses in refrigeration system, its power savings advantages is also by increasing customer acceptance, and the increase of initial cost does not have influence on its sales volume.Along with its extensive utilization also just has increasing problem to occur, the oil return problem of fluorine barrel pump has become focus wherein.On the market in order to solve the hard brains of the many producers of oil return problem, and they more throw in energy arranging in problem at oil return point, some producers adopt multiple spot circuit, the oil return of some employing return flanges, three the liquid level oil returns of employing that also have, adopt which kind of mode all can have oil return effect, but these all do not consider the problem of oil return heat exchange, rich oil liquid is not directly got back to compressor suction duct through abundant heat exchange, not only can affect oily mobility, serious also can cause compressor Hui Shuan.
Summary of the invention
The purpose of this utility model is exactly that a kind of barrel pump unit strengthening oil return apparatus is provided for the defect of above-mentioned existence.This device has not only reached the effect of the efficiency of the strengthening oil return in fluorine pump liquid-supplying system, also by improving the degree of supercooling of the freon liquid of economizer and the Freon gas of compressor discharge, has improved refrigerating efficiency.
A kind of barrel pump unit strengthening oil return apparatus technical scheme of the present utility model is that barrel unit circulation barrel oil return opening is connected rear access compressor successively with First Heat Exchanger, the second heat exchanger.
Freon pipeline one end in First Heat Exchanger is connected with freon supply opening, other end access barrel unit.
First Heat Exchanger is connected with barrel unit by liquid supply assembly.
Second heat exchanger water back one end connects exhaust outlet of compressor, and the other end connects Siphon pot interface.
First Heat Exchanger is a kind of in plate type heat exchanger, finned tube exchanger, lamella heat exchanger.
The second heat exchanger is a kind of in plate type heat exchanger, finned tube exchanger, lamella heat exchanger.
Between First Heat Exchanger and barrel unit circulation barrel oil return opening, be provided with and look oily mirror.
First the rich oil liquid of returning from barrel pump unit circulation barrel enter in First Heat Exchanger with the freon liquid of cryogenic high pressure from economizer and carry out heat exchange for the first time, the returning-oil temperature (temperature difference is 30 ℃ of left and right) higher than circulation barrel from the Freon liquid temperature of economizer now, owing to being heat exchange between liquid, so utilize the abundant contact advantage of First Heat Exchanger, carry out augmentation of heat transfer, heat on the one hand returning-oil temperature, improve on the other hand the degree of supercooling of freon liquid, improve barrel pump unit efficiency; The rich oil liquid that slave plate gains after heat exchange for the first time can be again through the second heat exchanger, carry out heat exchange for the second time with the exhaust of compressor here, this time heat exchange is the remarkable heat transfer between gas and liquid, the temperature-difference maximum of delivery temperature and oil return can reach more than 50 ℃, under strong heat exchange like this, rich oil fluid temperature improves rapidly, the mobility of oil is stronger, utilize the siphon principle of compressor air suction rapidly oil to be brought back to compressor, so just reached the object of oil return heat exchange, the practicality of fluorine pumping system is improved.
The beneficial effects of the utility model are: barrel pump unit of the present utility model strengthening oil return apparatus first utilizes freon liquid that economizer returns and the oil return of low pressure recycle bucket to carry out heat exchange, preliminary heating oil return on the one hand, improve on the other hand the degree of supercooling of feed flow, strengthen refrigeration (also embodying an energy-saving and cost-reducing aspect), then utilize compressor air-discharging heat heating rich oil liquid, so just significantly increased the temperature of oil return, allow oil fully flow, and get back to smoothly compressor assembly, cooled Freon gas is got back to Siphon pot, this has also shared the sub-load of condenser.
The utility model has the advantage of the effect that has not only reached the strengthening oil return efficiency in fluorine pump liquid-supplying system, also by improving the degree of supercooling of the freon liquid of economizer and the Freon gas of compressor discharge, improved refrigerating efficiency.
accompanying drawing explanation:
Figure 1 shows that basic structure schematic diagram of the present utility model.
In figure, 1-barrel unit, 2-oil return opening, 3-First Heat Exchanger, 4-supply opening, 5-liquid supply assembly, 6-the second heat exchanger, 7-exhaust outlet of compressor, 8-Siphon pot interface, 9-looks oily mirror.
the specific embodiment:
In order to understand better the utility model, with instantiation, describe the technical solution of the utility model in detail below, but the utility model is not limited to this.
A kind of barrel pump unit strengthening oil return apparatus of the present utility model, barrel unit circulation barrel oil return opening 2 is connected rear access compressor successively with First Heat Exchanger 3, the second heat exchanger 6.
Freon pipeline one end in First Heat Exchanger 3 is connected with freon supply opening 4, other end access barrel unit 1.
First Heat Exchanger 3 is connected with barrel unit 1 by liquid supply assembly 5.
Second heat exchanger 6 water back one end connect exhaust outlet of compressor 7, and the other end connects Siphon pot interface 8.
First Heat Exchanger 3 is a kind of in plate type heat exchanger, finned tube exchanger, lamella heat exchanger.
The second heat exchanger 6 is a kind of in plate type heat exchanger, finned tube exchanger, lamella heat exchanger.
Between First Heat Exchanger 3 and barrel unit circulation barrel oil return opening 2, be provided with and look oily mirror 9.
Embodiment 1
A kind of barrel pump unit strengthening oil return apparatus of the present utility model, barrel unit circulation barrel oil return opening 2 is connected rear access compressor successively with First Heat Exchanger 3, the second heat exchanger 6.
Freon pipeline one end in First Heat Exchanger 3 is connected with freon supply opening 4, other end access barrel unit 1.
First Heat Exchanger 3 is connected with barrel unit 1 by liquid supply assembly 5.
Second heat exchanger 6 water back one end connect exhaust outlet of compressor 7, and the other end connects Siphon pot interface 8.
First Heat Exchanger 3 is plate type heat exchanger.
The second heat exchanger 6 is finned tube exchanger.
Between First Heat Exchanger 3 and barrel unit circulation barrel oil return opening 2, be provided with and look oily mirror 9.
First the rich oil liquid of returning from barrel pump unit circulation barrel enter in First Heat Exchanger 3 with the freon liquid of cryogenic high pressure from economizer and carry out heat exchange for the first time, the returning-oil temperature (temperature difference is 30 ℃ of left and right) higher than circulation barrel from the Freon liquid temperature of economizer now, owing to being heat exchange between liquid, so utilize the abundant contact advantage of First Heat Exchanger 3, carry out augmentation of heat transfer, heat on the one hand returning-oil temperature, improve on the other hand the degree of supercooling of freon liquid, improve barrel pump unit efficiency; The rich oil liquid that slave plate gains after heat exchange for the first time can be again through the second heat exchanger 6, carry out heat exchange for the second time with the exhaust of compressor here, this time heat exchange is the remarkable heat transfer between gas and liquid, the temperature-difference maximum of delivery temperature and oil return can reach more than 50 ℃, under strong heat exchange like this, rich oil fluid temperature improves rapidly, the mobility of oil is stronger, utilize the siphon principle of compressor air suction rapidly oil to be brought back to compressor, so just reached the object of oil return heat exchange, the practicality of fluorine pumping system is improved.
Claims (7)
1. a barrel pump unit strengthening oil return apparatus, is characterized in that, barrel unit circulation barrel oil return opening is connected rear access compressor successively with First Heat Exchanger, the second heat exchanger.
2. a kind of barrel pump unit strengthening oil return apparatus according to claim 1, is characterized in that, the freon pipeline one end in First Heat Exchanger is connected with freon supply opening, other end access barrel unit.
3. a kind of barrel pump unit strengthening oil return apparatus according to claim 2, is characterized in that, First Heat Exchanger is connected with barrel unit by liquid supply assembly.
4. a kind of barrel pump unit strengthening oil return apparatus according to claim 1, is characterized in that, second heat exchanger water back one end connects exhaust outlet of compressor, and the other end connects Siphon pot interface.
5. a kind of barrel pump unit strengthening oil return apparatus according to claim 1, is characterized in that, First Heat Exchanger is a kind of in plate type heat exchanger, finned tube exchanger, lamella heat exchanger.
6. a kind of barrel pump unit strengthening oil return apparatus according to claim 1, is characterized in that, the second heat exchanger is a kind of in plate type heat exchanger, finned tube exchanger, lamella heat exchanger.
7. a kind of barrel pump unit strengthening oil return apparatus according to claim 1, is characterized in that, between First Heat Exchanger and barrel unit circulation barrel oil return opening, is provided with and looks oily mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248327.6U CN203893503U (en) | 2014-05-15 | 2014-05-15 | Barrel pump unit forced oil return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248327.6U CN203893503U (en) | 2014-05-15 | 2014-05-15 | Barrel pump unit forced oil return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893503U true CN203893503U (en) | 2014-10-22 |
Family
ID=51719898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420248327.6U Expired - Fee Related CN203893503U (en) | 2014-05-15 | 2014-05-15 | Barrel pump unit forced oil return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306826A (en) * | 2019-12-25 | 2020-06-19 | 百尔制冷(无锡)有限公司 | Oil return device and oil return method of transcritical carbon dioxide pump liquid supply refrigeration system |
-
2014
- 2014-05-15 CN CN201420248327.6U patent/CN203893503U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306826A (en) * | 2019-12-25 | 2020-06-19 | 百尔制冷(无锡)有限公司 | Oil return device and oil return method of transcritical carbon dioxide pump liquid supply refrigeration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |