CN101666765A - High-pressure non-contact type online continuous oil-injecting device - Google Patents
High-pressure non-contact type online continuous oil-injecting device Download PDFInfo
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- CN101666765A CN101666765A CN200910307916A CN200910307916A CN101666765A CN 101666765 A CN101666765 A CN 101666765A CN 200910307916 A CN200910307916 A CN 200910307916A CN 200910307916 A CN200910307916 A CN 200910307916A CN 101666765 A CN101666765 A CN 101666765A
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Abstract
The invention provides a high-pressure non-contact type online continuous oil-injecting device, comprising an oil separator, a high-pressure storage tank, an adjusting valve, an oil pump, a flow meter, a check valve, a vacuum pump, a high-pressure air bag, a high-pressure gas cylinder and stop valves, wherein an outlet of the oil separator is divided into two paths in which one path is directly output and the other path is connected with an inlet of the high-pressure storage tank by a first stop valve; an outlet of the high-pressure storage tank is divided into two paths in which one path is connected with an inlet of the adjusting valve and the other path is connected with the vacuum pump by a fourth stop valve; the adjusting valve, the oil pump, the flow meter and the check valve are connected in sequence; the high-pressure air bag is arranged in the high-pressure storage tank, and is connected with the high-pressure gas cylinder by a third stop valve; an inlet of a second stop valveis connected into a pipeline between the high-pressure air bag and the third stop valve; and an outlet of the second stop valve is connected with the atmosphere. The high-pressure non-contact type online continuous oil-injecting device realizes oil injection to the high-pressure device by the high-pressure air bag, and the high-pressure gas and a refrigerant are not contacted in the oil-injectingprocess, thus improving the accuracy of measurement.
Description
Technical field
What the present invention relates to is a kind of device of the field of measuring technique of freezing, and specifically is a kind of high-pressure non-contact type online continuous oil-injecting device.
Background technology
In the vapor compression refrigeration system actual moving process, the refrigerant vapour that compressor is discharged can carry a certain amount of lubricating oil inevitably, and the working medium that causes entering evaporator is not pure cold-producing medium, but the cold-producing medium oil mixture.When therefore the coefficient of heat transfer of working medium is tested in carrying out evaporator, will make that the working medium of experiment is cold-producing medium-oil mixture, and get the content of regulating lubricating oil in the potpourri as requested.This just needs a suitable oiling device, so that lubricating oil amount as required is injected in the refrigerant loop.Such oiling device needs following three functions:
1) can be to the oiling of high-pressure refrigerant loop.Existing part refrigeration system operating pressure is higher, as strides critical CO
2Refrigeration system, its high-pressure side operating pressure rely on oil pump to be difficult for having only the lubricating oil in the atmospheric oil tank to join in the system of high pressure like this usually greater than 10MPa.
2) realize contactless oiling.If the gas in the oiling device contacts with lubricating oil, understand some gas dissolving in lubricating oil, the lubricating oil that causes oiling device to inject in refrigerant loop contains some gas, so just can not accurately control the actual lubricants capacity that injects refrigeration system.And in oiling device, avoid gas and the direct of lubricating oil to contact, then can avoid this problem.
3) realize the on-line continuous oiling.Adopt the on-line continuous oiling, in the time of can accurately controlling the proportioning of cold-producing medium and lubricating oil, and improve measuring speed.
Find through retrieval existing document, the Chinese patent publication No. provides a kind of common on-line continuous oiling device for 200410017184 application case, this device is the lubricating oil branch road that contains oil container in parallel on test section, control the flow rate of lubricating oil that oil accumulator injects test section by the variable valve of regulating in the lubricating oil branch road, what but this device adopted is the correction oil injection method of contact, be not suitable for the cold-producing medium of high operating pressure, and what oil container injected in measuring branch road is not straight lubrication oil, but the potpourri of cold-producing medium and lubricating oil, thereby cause the oiling instability of flow, concentration of lubricating oil is measured inaccurate.
Summary of the invention
Defective and deficiency in order to overcome prior art the invention provides a kind of high-pressure non-contact type online continuous oil-injecting device.By using high-pressure gasbag, not only can be to the oiling of high operating pressure refrigerant loop on-line continuous, thus can also avoid gas in the contact correction oil injection method and lubricating oil to contact with each other containing gas in the lubricating oil that causes causes concentration of lubricating oil to measure inaccurate problem.
The present invention is realized by following technical scheme:
The present invention includes: oil separator, high pressure storage tank, variable valve, oil pump, flowmeter, non-return valve, vacuum pump, high-pressure gasbag, gas cylinder, first stop valve, second stop valve, the 3rd stop valve and the 4th stop valve, wherein: the import of oil separator links to each other with the cold-producing medium oil mixture, the outlet of oil separator is divided into two-way, one tunnel cold-producing medium that separation is obtained is directly exported, and another road links to each other by first stop valve lubricating oil that separation obtains with the import of high pressure storage tank; The outlet of high pressure storage tank is divided into two-way, and one the tunnel links to each other with the import of variable valve, and another road links to each other with vacuum pump by the 4th stop valve; The outlet of variable valve links to each other with the import of oil pump; The outlet of oil pump links to each other with the import of flowmeter; The outlet of flowmeter links to each other with the import of non-return valve, the outlet output lubricating oil of non-return valve; High-pressure gasbag places in the high pressure storage tank, and high-pressure gasbag links to each other with gas cylinder by the 3rd stop valve, and the import of second stop valve inserts the pipeline between high-pressure gasbag and the 3rd stop valve, and the outlet of second stop valve links to each other with atmosphere.
The side of described high pressure storage tank is provided with two view windows, is used for observing when oiling and oil return oil level.
The diameter dimension scope of described high pressure storage tank is 200mm-1000mm, and the height dimension scope is 400mm-2000mm.
The top seal structure of described high pressure storage tank is a flange arrangement.
In the test process, inject gases at high pressure by gas cylinder to high-pressure gasbag, high-pressure gasbag is subjected to the lubricating oil in the compression swelling extruding high pressure storage tank, makes the lubricating oil of high pressure storage tank outlet at bottom have certain back pressure, lubricating oil is after the oil pump pressurization then, and flow through flowmeter and non-return valve are exported; After test was finished, the gases at high pressure in the high-pressure gasbag entered atmosphere, and the lubricating oil in the oil separator is led back high pressure storage tank, with vacuum pump the lubricating oil in the high pressure storage tank were vacuumized then, to remove the cold-producing medium that dissolves in the lubricating oil.
Compared with prior art, the invention has the beneficial effects as follows: realized that by using high-pressure gasbag oiling process mesohigh gas does not contact with lubricating oil, make the present invention be suitable for and be not more than on-line continuous oiling in the refrigerant loop of 20MPa to operating pressure, and contactless oiling mode can be avoided sneaking into lubricating oil in the cold-producing medium, thereby has improved the accuracy of measuring.
Description of drawings
Fig. 1 is a connection diagram of the present invention.
Specific implementation method
Below in conjunction with accompanying drawing device of the present invention is further described, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment
As shown in Figure 1, present embodiment comprises: oil separator 1, first stop valve 2, high pressure storage tank 3, high-pressure gasbag 4, variable valve 5, oil pump 6, flowmeter 7, non-return valve 8, second stop valve 9, the 3rd stop valve 10, gas cylinder 11, the 4th stop valve 12 and vacuum pump 13, wherein: the lubricating oil outlet of oil separator 1 links to each other with the side inlet of high pressure storage tank 3 by first stop valve 2, the outlet at bottom of high pressure storage tank 3 links to each other with the import of variable valve 5, variable valve 5, oil pump 6, flowmeter 7 links to each other with pipeline successively with non-return valve 8, the top exit of high pressure storage tank 3 links to each other with vacuum pump 13 by the 4th stop valve 12, high-pressure gasbag 4 places in the high pressure storage tank 3, the outlet of high-pressure gasbag 4 links to each other with gas cylinder 11 by the 3rd stop valve 10, link to each other with the import of second stop valve 9 with a pipeline between high-pressure gasbag 4 and the 3rd stop valve 10, the outlet of second stop valve 9 links to each other with atmosphere.
The side of described high pressure storage tank 3 is provided with two view windows, is used for observing when oiling and oil return oil level.
The top of described high pressure storage tank 3 is the flange arrangement sealing.
The diameter dimension of described high pressure storage tank 3 is 800mm, highly is 1600mm.
The course of work of present embodiment is as follows:
In the measuring process, open the 3rd stop valve 10 earlier, inject a certain amount of gases at high pressure by gas cylinder 11 to high-pressure gasbag 4, high-pressure gasbag 4 is subjected to the lubricating oil in the compression swelling extruding high pressure storage tank 3, thereby makes the lubricating oil of high pressure storage tank 3 outlet at bottoms have certain back pressure; After lubricating oil pressurizes by oil pump 6 then, flow through flowmeter 7 and non-return valve 8 outputs; Making flow rate of lubricating oil by the aperture of regulating variable valve 5 at last is setting value, and carries out the flow demonstration by flowmeter 7.
After measuring end, open second stop valve 9 earlier, the gases at high pressure in the high-pressure gasbag 4 are all discharged; Close second stop valve 9 then, open first stop valve 2, the lubricating oil that is dissolved with lower amount of refrigerant in the oil separator 1 is led back high pressure storage tank 3; Open the 4th stop valve 12 at last, the lubricating oil of opening in 13 pairs of high pressure storage tanks of vacuum pump 3 vacuumizes, to remove the cold-producing medium that dissolves in the lubricating oil.
Present embodiment injects gases at high pressure by gas cylinder 11 to high-pressure gasbag 4, high-pressure gasbag 4 is subjected to the lubricating oil in the compression swelling extruding high pressure storage tank 3, make the lubricating oil of high pressure storage tank 3 outlet at bottoms have certain back pressure, lubricating oil is after oil pump 6 pressurizations then, and flow through flowmeter 7 and non-return valve 8 outputs have realized the high pressure oiling; In the oiling process, the gases at high pressure in the high-pressure gasbag 4 do not contact mutually with lubricating oil in the high pressure storage tank 3, have realized contactless oiling, have improved the accuracy of measurement.
Claims (5)
1. high-pressure non-contact type online continuous oil-injecting device, comprise: oil separator, first stop valve, variable valve, oil pump, flowmeter, non-return valve, second stop valve, the 3rd stop valve, the 4th stop valve and vacuum pump, it is characterized in that, also comprise: high pressure storage tank, high-pressure gasbag and gas cylinder, wherein: the import of oil separator links to each other with the cold-producing medium oil mixture, the outlet of oil separator is divided into two-way, one tunnel cold-producing medium that separation is obtained is directly exported, and another road links to each other by first stop valve lubricating oil that separation obtains with the import of high pressure storage tank; The outlet of high pressure storage tank is divided into two-way, and one the tunnel links to each other with the import of variable valve, and another road links to each other with vacuum pump by the 4th stop valve; The outlet of variable valve links to each other with the import of oil pump; The outlet of oil pump links to each other with the import of flowmeter; The outlet of flowmeter links to each other with the import of non-return valve, the outlet output lubricating oil of non-return valve; High-pressure gasbag places in the high pressure storage tank, and high-pressure gasbag links to each other with gas cylinder by the 3rd stop valve, and the import of second stop valve inserts the pipeline between high-pressure gasbag and the 3rd stop valve, and the outlet of second stop valve links to each other with atmosphere.
2. high-pressure non-contact type online continuous oil-injecting device according to claim 1 is characterized in that, the diameter dimension scope of described high pressure storage tank is 200mm-1000mm, and the height dimension scope is 400mm-2000mm.
3. high-pressure non-contact type online continuous oil-injecting device according to claim 1 is characterized in that, the top seal structure of described high pressure storage tank is a flange arrangement.
4. high-pressure non-contact type online continuous oil-injecting device according to claim 1 is characterized in that, the side of described high pressure storage tank is provided with two view windows.
5. high-pressure non-contact type online continuous oil-injecting device according to claim 2 is characterized in that the diameter of described high pressure storage tank is 800mm, highly is 1600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910307916A CN101666765A (en) | 2009-09-29 | 2009-09-29 | High-pressure non-contact type online continuous oil-injecting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910307916A CN101666765A (en) | 2009-09-29 | 2009-09-29 | High-pressure non-contact type online continuous oil-injecting device |
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| CN101666765A true CN101666765A (en) | 2010-03-10 |
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| CN200910307916A Pending CN101666765A (en) | 2009-09-29 | 2009-09-29 | High-pressure non-contact type online continuous oil-injecting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584983A (en) * | 2014-10-21 | 2016-05-18 | 中国石油化工股份有限公司 | Airtight feeding and discharging device for volatile media and use method thereof |
| CN114623068A (en) * | 2020-12-11 | 2022-06-14 | 上海海立电器有限公司 | Compressor oiling method and compressor oiling device |
| CN114623068B (en) * | 2020-12-11 | 2024-04-30 | 上海海立电器有限公司 | Compressor oiling method and compressor oiling device |
-
2009
- 2009-09-29 CN CN200910307916A patent/CN101666765A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584983A (en) * | 2014-10-21 | 2016-05-18 | 中国石油化工股份有限公司 | Airtight feeding and discharging device for volatile media and use method thereof |
| CN105584983B (en) * | 2014-10-21 | 2018-11-02 | 中国石油化工股份有限公司 | A kind of closed charging/discharging device and application method of volatile medium |
| CN114623068A (en) * | 2020-12-11 | 2022-06-14 | 上海海立电器有限公司 | Compressor oiling method and compressor oiling device |
| CN114623068B (en) * | 2020-12-11 | 2024-04-30 | 上海海立电器有限公司 | Compressor oiling method and compressor oiling device |
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Open date: 20100310 |