CN101545880B - Device for measuring trans-critical cycle heat exchange of CO2-oil mixture - Google Patents
Device for measuring trans-critical cycle heat exchange of CO2-oil mixture Download PDFInfo
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- CN101545880B CN101545880B CN2009100504591A CN200910050459A CN101545880B CN 101545880 B CN101545880 B CN 101545880B CN 2009100504591 A CN2009100504591 A CN 2009100504591A CN 200910050459 A CN200910050459 A CN 200910050459A CN 101545880 B CN101545880 B CN 101545880B
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Abstract
The present invention relates to a device for measuring trans-critical cycle heat exchange of CO2-oil mixture in the technical field of refrigeration and air conditioning. A condenser is sequentially connected with a second electronic expansion valve, a sixth stop valve and an evaporation bypass section which is connected between a third stop valve and a compressor module oil path; the condenser is also sequentially connected with a first stop valve, a first viewing mirror, a CO2 mass flow meter, a mixing chamber, a first electronic expansion valve, a preheater and a CO2 trans-critical cycle heat exchange characteristic test section; the condenser is further sequentially connected with a fifth stop valve of a lubricating oil branch, a piston-type oil storage device, an adjustable valve of the lubricating oil branch, a high pressure oil pump, a second viewing mirror, a lubricating oil mass flow meter and a check valve, wherein the check valve is connected between the CO2 mass flow meter and a mixing chamber oil path; and the condenser is also sequentially connected with a rear heater, a second stop valve, a high-efficiency oil separator, a fourth stop valve in the lubricating oil branch, and the piston-type oil storage device. The device adopts an intermittent oil returning method so that the measurement of the lubricating oil mass flow is accurate.
Description
Technical field
What the present invention relates to is a kind of measurement mechanism of Refrigeration ﹠ Air-Conditioning technical field, but the CO of particularly a kind of on-line continuous oiling, intermittent oil returning
2-oil mixture is striden the critical cycle heat exchange measurement mechanism.
Background technology
For CO
2Vapor compression refrigeration system can inevitably dissolve lubricating oil in the system, and these lubricating oil can be to CO
2Stride critical cycle heat exchange and drooping characteristic generation influence in various degree.Estimate lubricating oil to CO
2Stride the influence of critical cycle heat exchange, for instructing CO
2The optimal design of air-condition heat exchanger and evaluation system characteristic are extremely important.
In order to measure lubricating oil to CO
2Stride the influence of critical cycle heat exchange, need be to CO
2Measure in the loop and inject lubricating oil.Two kinds of methods of available technology adopting are injected:
Method one is to adopt pusher syringe to CO
2Measure the loop oiling.This method has a lot of weak points: 1) adopt non-online oiling, the proportioning of cold-producing medium and lubricating oil in the change system at every turn must manually oiling in system.2) adjusting of the proportioning of cold-producing medium and lubricating oil is discontinuous, and proportioning is difficult for accurately control.3) need manual oiling owing to change proportioning, therefore when oil concentration need change on a large scale, can make the workload of oiling strengthen, increase the manpower and the time loss of experiment, reduced conventional efficient.
Method two is to adopt common on-line continuous oiling oil return apparatus (patent No. 200410017184).This device is the lubricating oil branch road that contains oil accumulator 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, reaching cold-producing medium and the continuously adjustable purpose of lubricating oil proportioning, so method two has solved the weak point that method one exists.But this method is at cold-producing medium that is used for high operating pressure such as CO
2Oiling and also have some problems during oil return: 1) but because the employed oil container of method two is non-adding pressure type oil container, internal pressure very low (approaching atmospheric pressure) during operation, be applicable to that operating pressure is lower than the oiling of the cold-producing medium of 3MPa, and the cold-producing medium of high operating pressure such as CO
2The pressure in measuring the loop up to 7 ~ 12MPa, the internal pressure that oil container is low excessively will cause and lubricating oil can't be injected CO
2Measure the loop.2) high pressure CO
2Solubleness is bigger in lubricating oil, enters in the lubricating oil of oil accumulator and can sneak into portion C O
2, adopt the mode of continuous oil return can make oil container to CO
2Measuring what inject in the loop is not straight lubrication oil but CO
2With the potpourri of lubricating oil, thereby cause the oiling instability of flow, measure inaccurate.Therefore, because the limitation of itself, and be not suitable for the cold-producing medium such as the CO of high operating pressure though method two has solved method one existing problem
2Stride the measurement of critical cycle heat exchange with oil mixture.
Summary of the invention
For deficiency and the defective that overcomes prior art, but the invention provides the CO of a kind of on-line continuous oiling, intermittent oil returning
2-oil mixture is striden the critical cycle heat exchange measurement mechanism.But effectively realized the CO of on-line continuous oiling, intermittent oil returning
2-oil mixture is striden the accurate measurement of critical cycle heat exchange.
The present invention includes by CO
2Measure loop, CO
2Bypass branch road and lubricating oil branch road constitute, CO
2The measurement loop comprises: compressor module, condenser, first stop valve, first visor, CO
2Mass flowmeter, mixing chamber, first electric expansion valve, primary heater, CO
2Stride critical cycle heat exchange characteristic test section, rearmounted well heater, second stop valve, the 3rd stop valve, high-efficiency oil separator, the lubricating oil branch road comprises: the 4th stop valve, piston type oil container, variable valve, high-pressure oil pump, second visor, quality of lubrication oil flowmeter, non-return valve, the 5th stop valve, CO
2The bypass branch road comprises: second electric expansion valve, the 6th stop valve, evaporation bypass section;
Condenser exports output respectively and connects as follows:
(a) successively with second electric expansion valve, the 6th stop valve, evaporation bypass section connects, evaporation bypass section is connected between the 3rd stop valve and the compressor module oil circuit;
(b) successively with first stop valve, first visor, CO
2Mass flowmeter, mixing chamber, first electric expansion valve, primary heater, CO
2Striding critical cycle heat exchange characteristic test section connects;
CO
2Striding critical cycle heat exchange characteristic test section outlet output connects as follows:
(c) CO
2Stride the outlet of critical cycle heat exchange characteristic test section and be connected with the 5th stop valve 21, piston type oil container, the variable valve of lubricating oil branch road, high-pressure oil pump, second visor, quality of lubrication oil flowmeter, the non-return valve of lubricating oil branch road successively, non-return valve is connected to CO
2Between mass flowmeter and the mixing chamber oil circuit;
(d) CO
2Stride critical cycle heat exchange characteristic test section outlet and be connected with the 4th stop valve, piston type oil container in rearmounted well heater, second stop valve, high-efficiency oil separator, the lubricating oil branch road successively, merge with above-mentioned (c) bar then;
(e) CO
2The outlet of striding critical cycle heat exchange characteristic test section links to each other with the 8th stop valve, vacuum pump successively;
(f) CO
2The outlet of striding critical cycle heat exchange characteristic test section links to each other with the 7th stop valve;
(h) another way outlet of described high-efficiency oil separator: be connected with the 3rd stop valve, compressor module successively, be connected with condenser inlet by the compressor module outlet at last;
Described high-efficiency oil separator is provided with several, and one road inlet is similarly several, and its two-way outlet is several too, and several entrance and exits are connections arranged side by side.
CO
2Measure the high pressure CO in loop
2Flow out from condenser, through first stop valve, first visor, CO
2After the lubricating oil that adds in mass flowmeter and the lubricating oil branch road mixes, enter CO by first electric expansion valve and primary heater in mixing chamber
2Stride critical cycle heat exchange characteristic test section, CO
2-oil mixture is at CO
2Stride in the critical cycle heat exchange characteristic test section and fully extract a small amount of high-pressure mixture feeding piston type oil container to increase back pressure, all the other CO after the heat exchange
2-oil mixture enters high-efficiency oil separator by the rearmounted well heater and second stop valve, the CO after the separation
2By being absorbed compression by the compressor module behind the 3rd stop valve, enter condenser subsequently;
When beginning is measured in heat exchange, close the 4th stop valve, the 7th stop valve, the 8th stop valve, open the 5th stop valve and inject high pressure CO to the gas injection pressures partially of piston type oil container
2-oil mixture matter makes the lubricating oil of store oil part that back pressure be arranged by the piston conducting pressure, by high-pressure oil pump smoothly to high pressure CO
2Measure oiling in the loop.When measurement is finished, at first open the 7th stop valve, it is whole to emit gases at high pressure, moves to the top on the piston; Close the 7th stop valve then, open the 4th stop valve, observe, when oil level no longer rises, close the 4th stop valve, open the 8th stop valve, open vacuum pump and begin to vacuumize the CO that dissolves in the lubricating oil to remove by form
2
Lubricating oil pressurizes after quality of lubrication oil flowmeter, variable valve, second visor and non-return valve and CO through high-pressure oil pump in the piston type oil container of lubricating oil branch road
2Measure the cold-producing medium CO in the loop
2Enter CO after in mixing chamber, mixing
2Stride critical cycle heat exchange characteristic test section.After measurement is finished, CO will be dissolved with in the high-efficiency oil separator
2Lubricating oil lead back the piston type oil container by the 4th stop valve, and the piston type oil container is vacuumized, remove the CO that sneaks into
2, obtain comparatively pure lubricating oil.
CO
2The cold-producing medium CO of bypass branch road
2Flow out from condenser, enter evaporation bypass section, behind pervaporation bypass section boiling heat transfer, absorbed compression, flow into condenser by the compressor module through second electric expansion valve, the 6th stop valve.
Lubricating oil by high-pressure oil pump to CO
2Measure oiling in the loop,, pass through CO by regulating the aperture control flow rate of lubricating oil of the variable valve in the lubricating oil branch road
2The proportioning of cold-producing medium and lubricating oil in the reading calculating measuring section of mass flowmeter and quality of lubrication oil flowmeter, thus realize the adjustable continuously of cold-producing medium and lubricating oil proportioning.
The present invention has added piston in the design of oil container, the piston that four road sealing rings are housed is closely filled in the opening oil tank after, again that the weldering of tank top and oil pipe top is dead.Carrying out CO
2When-oil mixture is striden the critical cycle heat exchange measurement, by in the cavity of the top of piston, injecting high pressure CO
2To improve the pressure of piston below lubricating oil, make lubricating oil to enter high pressure CO smoothly through the high-pressure oil pump pressurization
2Measure the loop.Four road sealing rings are housed on the piston, thereby have avoided the high pressure CO of piston top substantially
2Leak in the lubricating oil of below.Simultaneously, because high pressure CO
2Solubleness is bigger in lubricating oil, and oil separator is difficult to remove fully the CO that is dissolved in the lubricating oil
2If, by oil container to CO
2Measuring the directly continuous oiling in loop will cause to CO
2Measuring what inject in the loop is not straight lubrication oil but CO
2With the potpourri of lubricating oil, thereby make the measurement of quality of lubrication oil flow inaccurate,, avoided this problem so the present invention has adopted intermittent oil returning method.
Description of drawings
Fig. 1 is apparatus of the present invention structure principle chart;
Fig. 2 is a piston type oil container cut-away view;
Among the figure, 1 is compressor module, and 2 is condenser, and 3 is first stop valve, and 4 is first visor, and 5 is CO
2Mass flowmeter, 6 is mixing chamber, and 7 is first electric expansion valve, and 8 is primary heater, and 9 is CO
2Stride critical cycle heat exchange characteristic test section, 10 is rearmounted well heater, and 11 is second stop valve, and 12 is the 3rd stop valve, 13 is high-efficiency oil separator, and 14 is the 4th stop valve, and 15 is the piston type oil container, 16 is variable valve, and 17 is high-pressure oil pump, and 18 is second visor, 19 is the quality of lubrication oil flowmeter, and 20 is non-return valve, and 21 is the 5th stop valve, 22 is second electric expansion valve, and 23 is the 6th stop valve, and 24 are evaporation bypass section, 25 is the 7th stop valve, and 26 is the 8th stop valve, and 27 is vacuum pump.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises a loop and two branch road: CO
2Measure the loop, CO
2Bypass branch road and lubricating oil branch road.
CO
2The measurement loop comprises: compressor module 1 (Dorin TCS340/4-D), condenser 2 (FUJITSU), first stop valve 3 (Swagelok SS-10NBSW8T-G), first visor 4 (Danfoss SGN), CO
2Mass flowmeter 5 (Emerson 5860E), mixing chamber 6, the first electric expansion valves 7 (FUJIKOKIEDM-4QYPKG-1YD2), primary heater 8, CO
2Stride critical cycle heat exchange characteristic test section 9, rearmounted well heater 10 (having made to order), second stop valve 11 (Swagelok SS-10NBSW8T-G), the 3rd stop valve 12 (SwagelokSS-10NBSW8T-G), high-efficiency oil separator 13 (Ingersoll Rand F-6501).
CO
2The bypass branch road comprises: second electric expansion valve 22 (FUJIKOKI EDM-4QYPKG-1YD2), the 6th stop valve 23 (Swagelok SS-10NBSW8T-G), evaporation bypass section 24.
The lubricating oil branch road comprises: the 4th stop valve 14 (Swagelok SS-10NBSW8T-G), piston type oil container 15, variable valve 16 (Swagelok SS-4BMG), high-pressure oil pump 17 (YB2501L), second visor 18 (Danfoss SGN), quality of lubrication oil flowmeter 19 (Emerson QMM), non-return valve 20 (SwagelokSS-53S4), the 5th stop valve 21 (Swagelok SS-10NBSW8T-G).
At CO
2Measure the CO that constitutes by second electric expansion valve, 22, the six stop valves 23 and evaporation bypass section 24 that inserts in parallel in the loop
2The bypass branch road; At CO
2Measure in parallel access the in the loop, piston type oil container 15, variable valve 16, high-pressure oil pump 17, the second visors 18, quality of lubrication oil flowmeter 19, the lubricating oil branch road that non-return valve 20 and the 5th stop valve 21 constitute by the 4th stop valve 14.
The outlet of present embodiment compressor module 1 links to each other with the import of condenser 2, the outlet of condenser 2 divides two-way, one the tunnel links to each other with the import of second electric expansion valve 22, the outlet of second electric expansion valve 22 links to each other with the import of the 6th stop valve 23, the outlet of the 6th stop valve 23 links to each other with the import of evaporation bypass section 24, and the outlet of evaporation bypass section 24 links to each other with compressor module 1; Another road and CO
2The import of measuring first stop valve 3 in the loop links to each other, and the outlet of first stop valve 3 links to each other with the import of first visor 4, the outlet of first visor 4 and CO
2The import of mass flowmeter 5 links to each other, CO
2The outlet of mass flowmeter 5 links to each other with the import of mixing chamber 6, and the outlet of mixing chamber 6 links to each other with the import of first electric expansion valve 7, and the outlet of first electric expansion valve 7 links to each other with the import of primary heater 8, the outlet of primary heater 8 and CO
2The import of striding critical cycle heat exchange characteristic test section 9 links to each other CO
2The outlet of striding critical cycle heat exchange characteristic test section 9 is divided into two-way, the 5th stop valve 21 of leading up to links to each other with the last interface of piston type oil container 15, one the tunnel links to each other with the import of rearmounted well heater 10, the outlet of rearmounted well heater 10 links to each other with the import of high-efficiency oil separator 13 by second stop valve 11, the refrigerant outlet of high-efficiency oil separator 13 links to each other with the import of compressor module 1 by the 3rd stop valve 12, the lubricating oil outlet of high-efficiency oil separator 13 links to each other with the import of the 4th stop valve 14, the outlet of the 4th stop valve 14 links to each other with the import of piston type oil container 15, the outlet of piston type oil container 15 links to each other with the import of variable valve 16, the outlet of variable valve 16 links to each other with the import of high-pressure oil pump 17, the outlet of high-pressure oil pump 17 links to each other with the import of second visor 18, the outlet of second visor 18 links to each other with the import of quality of lubrication oil flowmeter 19, and the outlet of quality of lubrication oil flowmeter 19 inserts CO through non-return valve 20 by threeway
2Measure the import of the mixing chamber 6 in the loop.
As shown in Figure 2, piston type oil container 15 is divided into the part of two sealings by moveable piston, and piston top is divided into the gas injection pressures partially, and the bottom is divided into the store oil part.CO
2The outlet of striding critical cycle heat exchange characteristic test section 9 is divided into two-way, wherein one the tunnel links to each other with the import of the 5th stop valve 21, the outlet of the 5th stop valve 21 links to each other with the import of piston type oil container 15 gas injection pressures partiallies, and the outlet of gas injection pressures partially links to each other with the 7th stop valve 25.The lubricating oil outlet of high-efficiency oil separator 13 links to each other with the import of the 4th stop valve 14, the outlet of the 4th stop valve 14 links to each other with the import of piston type oil container 15 store oils part, an outlet of store oil part links to each other with the import of high-pressure oil pump 17, another outlet links to each other with the import of the 8th stop valve 26, and the outlet of the 8th stop valve 26 links to each other with vacuum pump 27.
When beginning is measured in heat exchange, close the 4th stop valve 14, the 7th stop valve 25, the 8th stop valve 26, open the 5th stop valve 21 and inject high pressure CO to the gas injection pressures partially of piston type oil container 15
2-oil mixture matter makes the lubricating oil of store oil part that back pressure be arranged by the piston conducting pressure, by high-pressure oil pump smoothly to high pressure CO
2Measure oiling in the loop.When measurement is finished, at first open the 7th stop valve 25, the gases at high pressure of piston type oil container gas injection pressures partially all to be emitted, piston moves until the top on can be slowly; Close the 7th stop valve 25 then, open the 4th stop valve 14, with the CO that is dissolved with in the high-efficiency oil separator 13
2Lubricating oil lead back piston type oil container store oil part, observe by form, when oil level no longer rises, close the 4th stop valve 14, open the 8th stop valve 26, open vacuum pump 27 and begin to vacuumize the CO that dissolves in the lubricating oil to remove
2
Present embodiment solves high pressure CO by continuous oiling, intermittent oil returning method
2CO under oiling difficulty and the high pressure when striding the critical cycle heat exchange measurement
2Be dissolved in the not easily separated oiling problem of unstable that causes of lubricating oil.By the variable valve in lubricating oil branch road control injection flow, make CO
2The measurement result of mass flowmeter and quality of lubrication oil flowmeter satisfies CO
2Ratio requirement with lubricating oil.CO from the test section outflow
2-oil mixture is isolated wherein most of CO by high-efficiency oil separator
2, measurement will be dissolved with CO after finishing
2Lubricating oil lead back the piston type oil container, vacuumize again and remove the CO that sneaks in the lubricating oil
2
Claims (1)
1. CO
2-oil mixture is striden the critical cycle heat exchange measurement mechanism, it is characterized in that, comprises by CO
2Measure loop, CO
2Bypass branch road and lubricating oil branch road constitute, CO
2The measurement loop comprises: compressor module, condenser, first stop valve, first visor, CO
2Mass flowmeter, mixing chamber, first electric expansion valve, primary heater, CO
2Stride critical cycle heat exchange characteristic test section, rearmounted well heater, second stop valve, the 3rd stop valve, high-efficiency oil separator, the lubricating oil branch road comprises: the 4th stop valve, piston type oil container, variable valve, high-pressure oil pump, second visor, quality of lubrication oil flowmeter, non-return valve, the 5th stop valve, CO
2The bypass branch road comprises: second electric expansion valve, the 6th stop valve, evaporation bypass section;
Condensator outlet output connects as follows:
(a) condenser successively with second electric expansion valve, the 6th stop valve, evaporation bypass section connects, evaporation bypass section is connected between the 3rd stop valve and the compressor module oil circuit;
(b) condenser successively with first stop valve, first visor, CO
2Mass flowmeter, mixing chamber, first electric expansion valve, primary heater, CO
2Striding critical cycle heat exchange characteristic test section connects;
CO
2Striding critical cycle heat exchange characteristic test section outlet output connects as follows:
(c) CO
2Stride the outlet of critical cycle heat exchange characteristic test section and be connected the output terminal of non-return valve and CO with the 5th stop valve, piston type oil container, the variable valve of lubricating oil branch road, high-pressure oil pump, second visor, quality of lubrication oil flowmeter, the non-return valve of lubricating oil branch road successively
2The outlet of mass flowmeter and the import of mixing chamber link to each other;
(d) CO
2Stride critical cycle heat exchange characteristic test section outlet and is connected with the 4th stop valve, piston type oil container in rearmounted well heater, second stop valve, high-efficiency oil separator, the lubricating oil branch road successively, then with above-mentioned the 5th stop valve merging;
Described CO
2The outlet of striding critical cycle heat exchange characteristic test section links to each other with the piston type oil container by the 5th stop valve, and the piston type oil container links to each other with the 8th stop valve, vacuum pump successively;
The gas injection pressures partially of described piston type oil container links to each other with an end of the 7th stop valve, and the other end of the 7th stop valve is discharged in the environment;
Described piston type oil container is meant: after the piston that four road sealing rings are housed is closely filled in the opening oil tank, again that tank top and the weldering of oil pipe top is dead, this piston type oil container is divided into the part of two sealings by moveable piston, and piston top is divided into the gas injection pressures partially, and the bottom is divided into the store oil part;
The outlet of described high-efficiency oil separator is connected with the 3rd stop valve, compressor module successively, is connected with condenser inlet by the compressor module outlet at last.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100504591A CN101545880B (en) | 2009-04-30 | 2009-04-30 | Device for measuring trans-critical cycle heat exchange of CO2-oil mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100504591A CN101545880B (en) | 2009-04-30 | 2009-04-30 | Device for measuring trans-critical cycle heat exchange of CO2-oil mixture |
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| CN101545880A CN101545880A (en) | 2009-09-30 |
| CN101545880B true CN101545880B (en) | 2011-11-16 |
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Families Citing this family (5)
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| CN102352954B (en) * | 2011-09-30 | 2014-10-29 | 自贡市华瑞过滤设备制造有限公司 | Special absorption-assisting device for thin-oil lubricating equipment |
| CN104407008B (en) * | 2014-11-19 | 2018-03-02 | 华东理工大学 | A kind of test system for evaluating mixed vapour partial condensation heat transfer property |
| CN107314567B (en) * | 2017-06-16 | 2019-12-20 | 中国科学院工程热物理研究所 | Method for measuring supercritical CO2Apparatus and method for regenerator and cooler performance |
| CN111141541B (en) * | 2020-01-20 | 2021-09-24 | 上海交通大学 | Movable oil-containing refrigerant testing device and method |
| CN112964747B (en) * | 2021-03-10 | 2022-04-22 | 北京科技大学 | Gas condensation visualization and heat exchange characteristic detection device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4510576A (en) * | 1982-07-26 | 1985-04-09 | Honeywell Inc. | Specific coefficient of performance measuring device |
| CN1256560C (en) * | 2004-03-25 | 2006-05-17 | 上海交通大学 | On-line continuous oiling device having coolant flowing, boiling and heat exchanging measurement loop |
-
2009
- 2009-04-30 CN CN2009100504591A patent/CN101545880B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4510576A (en) * | 1982-07-26 | 1985-04-09 | Honeywell Inc. | Specific coefficient of performance measuring device |
| CN1256560C (en) * | 2004-03-25 | 2006-05-17 | 上海交通大学 | On-line continuous oiling device having coolant flowing, boiling and heat exchanging measurement loop |
Non-Patent Citations (4)
| Title |
|---|
| JP特开平11-211257A 1999.08.06 |
| 汪振策 等.R410A-油混合物在7mmC形光管呃逆蒸发换热特性及关联式.《机械工程学报》.2007,第43卷(第6期),第76-77页,附图1. * |
| 魏文建 等.制冷剂-润滑油互溶混合物系流动沸腾特性测试装置的研制.《低温工程》.2005,(第1期),第46-47页,附图1-3. * |
| 魏文建 等.含油制冷剂在小管径换热管内流动沸腾换热特性实验研究.《上海交通大学学报》.2006,第40卷(第2期),全文. * |
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