CN101922446A - Gas cooler for positive displacement refrigerant compressor test unit - Google Patents
Gas cooler for positive displacement refrigerant compressor test unit Download PDFInfo
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- CN101922446A CN101922446A CN 201010258980 CN201010258980A CN101922446A CN 101922446 A CN101922446 A CN 101922446A CN 201010258980 CN201010258980 CN 201010258980 CN 201010258980 A CN201010258980 A CN 201010258980A CN 101922446 A CN101922446 A CN 101922446A
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Abstract
The invention relates to a gas cooler for a positive displacement refrigerant compressor test unit. A sieve mesh mechanism in a gas cooler cylinder shell comprises an efficient filter screen arranged between an upper end surface platen and a lower end surface platen, the upper end surface platen and the lower end surface platen are vertical to the central axis of the cylinder shell and are arranged in the cylinder shell, the efficient filter screen is made of a stainless steel wire roll compressed into a plate shape, the thickness of the efficient filter screen is 150mm, the diameter of the stainless steel wire is 0.25mm, and the efficient filter screen can filter out oil droplets carried in saturated gas, thus ensuring lower oil content in exit gas and being capable of measuring volume flow accurately; and a gas tearing sieve mesh at the lower part of the cylinder shell comprises a gas tearing screen, the gas tearing screen is made of a stainless steel wire roll compressed into a plate shape, the thickness of the gas tearing screen is 50mm, the diameter of the stainless steel wire is 0.15mm, and the gas tearing screen can effectively decompose larger bubbles into a plurality of small bubbles, thus enlarging the heat transfer area between the gas tearing screen and the liquid refrigerant and shortening the heat transfer time. The gas cooler in the invention can be used in a positive displacement refrigerant compressor test under the working condition of low superheat degree of a lower limit machine.
Description
Technical field
The invention belongs to compressor test unit, be specifically related to gas cooler for positive displacement refrigerant compressor test unit.
Background technique
In recent years, the construction of the compressor test unit of each compressor producer both at home and abroad is more and more, and according to request of national standard, such testing apparatus need adopt two kinds of test method combinations to test usually.The testing apparatus master generally is to adopt the refrigerant gas cooling method, and auxilliary side adopts refrigerant liquid flowmeter body method.Wherein: gas cooler is one of topmost equipment in such testing apparatus.Its main effect is: the gaseous refrigerant that will discharge the high-temperature low-pressure after the gas throttling valve throttling by compressor with discharge after condensation by compressor, and vapour-liquid two-phase or liquid refrigerant after the throttling of liquid throttle valve fully mix, and carry out exchange heat.The refrigerant vapor that comes out from gas cooler should not contain refrigeration agent drop and overheated at least 8 ℃, to guarantee the normal operation of refrigeration system.The test span of testing apparatus compressor displacement generally is no more than 4～5 times at present, when doing lower limit machine low overheat operating mode, bottom in the gas cooler has liquid refrigerant, the top is saturated refrigerant gas, when gas enters in the cooler, can produce a bigger bubble, bubble surface and liquid carry out heat exchange, at this moment liquid evaporation, reduce the temperature of gas, because the surface area of bubble and liquid contact surface are long-pending limited, so do not reach good heat-transfer effect, some problems will occur, such as: suction superheat is bigger than normal, inhalation temperature fluctuation or the like, in a word, existing gas cooler generally can't satisfy the requirement of the outlet degree of superheat.
Summary of the invention
When testing lower limit machine low overheat operating mode in order to solve, existing gas cooler generally can't satisfy the problem of the requirement of the outlet degree of superheat, the invention provides a kind of gas cooler for positive displacement refrigerant compressor test unit that improves structure.
Concrete architecture advances technological scheme is as follows:
Gas cooler for positive displacement refrigerant compressor test unit comprises cylindrical shell 6, cylindrical shell 6 is positioned on the support, the cylindrical shell top is provided with the air outlet and takes over 10, the bottom is provided with drain pipe 1, the cylindrical shell internal upper part is provided with screen cloth mechanism, the bottom is provided with vapour-liquid two-phase inlet tube 13, and the flange connection mouth of vapour-liquid two-phase inlet tube 13 is positioned at cylindrical shell 6 outsides; Cylindrical shell 6 sidewalls of screen cloth mechanism bottom are provided with electric heating adapter 7 and the liquid level mirror takes over 8.Described screen cloth mechanism comprises high efficiency pariculate air 9, and high efficiency pariculate air 9 is between upper-end surface pressing plate 11 and lower end surface pressing plate 12, and described upper-end surface pressing plate 11 and lower end surface pressing plate 12 are located in the cylindrical shell perpendicular to the central shaft of cylindrical shell 6, and are the coarse grid frame-like; Described high efficiency pariculate air 9 for Stainless Steel Wire group be pressed into plate-like;
The bottom is provided with gas and tears screen cloth mechanism in the described cylindrical shell 6, gas is torn screen cloth mechanism and is comprised that gas tears net 4, gas is torn net 4 between top board 5 and press table 3, and described top board 5 and press table 3 be perpendicular to the central shaft of cylindrical shell 6, and is the coarse grid frame-like; Described gas tear net 4 for Stainless Steel Wire group be pressed into plate-like; The lower end of described vapour-liquid two-phase inlet tube 13 is passed gas and is torn screen cloth and reach cylindrical shell 6 bottoms.
The thickness of described high efficiency pariculate air 9 is 150 millimeters, and the diameter of its Stainless Steel Wire is 0.25 millimeter.
The thickness that described gas is torn net 4 is 50 millimeters, and the diameter of its Stainless Steel Wire is 0.15 millimeter.
Useful technique effect of the present invention embodies in the following areas:
1, the bubble tear device can effectively resolve into a lot of small bubble with bigger bubble, and the heat transfer area of increase and liquid refrigerant shortens the heat transfer time;
2, efficient oily filter screen can with in the saturated gas with little oil droplet filter out, guarantee the exit gas oil content seldom, accurately the measurement volumes flow.
3, vapour-liquid is mixed to be placed in the system pipeline carry out, increased incorporation time and mixed volume, reach the effect of mixing preferably.
Description of drawings
Fig. 1 is the gas cooler structural representation,
Fig. 2 is the B-B sectional view of Fig. 1,
Fig. 3 is the C-C sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described by embodiment.
Embodiment:
Referring to Fig. 1, gas cooler for positive displacement refrigerant compressor test unit comprises cylindrical shell 6, cylindrical shell 6 is positioned on the support, the cylindrical shell top is equipped with the air outlet and takes over 10, the bottom is equipped with drain pipe 1, the cylindrical shell internal upper part is provided with screen cloth mechanism, and the bottom is equipped with vapour-liquid two-phase inlet tube 13, and the flange connection mouth of vapour-liquid two-phase inlet tube 13 is positioned at cylindrical shell 6 outsides; Electric heating adapter 7 and liquid level mirror are installed on cylindrical shell 6 sidewalls of screen cloth mechanism bottom take over 8.
Screen cloth mechanism comprises high efficiency pariculate air 9, and high efficiency pariculate air 9 is seen Fig. 2 between upper-end surface pressing plate 11 and lower end surface pressing plate 12, and upper-end surface pressing plate 11 and lower end surface pressing plate 12 are installed in the cylindrical shell perpendicular to the central shaft of cylindrical shell 6, and is the coarse grid frame-like; High efficiency pariculate air 9 for Stainless Steel Wire group be pressed into plate-like; The thickness of high efficiency pariculate air 9 is 150 millimeters, and the diameter of its Stainless Steel Wire is 0.25 millimeter, can effectively the oil droplet in the gas be filtered out, and the impurity in the energy adsorbed gas, the turbidity test of assurance gas.
The bottom is equipped with gas and tears screen cloth mechanism in the cylindrical shell 6, see Fig. 3, gas is torn screen cloth mechanism and is comprised that gas tears net 4, and gas is torn net 4 between top board 5 and press table 3, top board 5 and press table 3 are installed in the cylindrical shell perpendicular to the central shaft of cylindrical shell 6, and are the coarse grid frame-like; Gas tear net 4 for Stainless Steel Wire group be pressed into plate-like; The thickness that gas is torn net 4 is 50 millimeters, and the diameter of its Stainless Steel Wire is 0.15 millimeter, and air permeability and good is arranged.The lower end of vapour-liquid two-phase inlet tube 13 is passed gas and is torn screen cloth and reach cylindrical shell 6 bottoms.
Operating temperature of the present invention is at-20 ℃～150 ℃, working pressure is less than 16Mpa, working medium is a refrigeration agent, such as being R22 and R134a, in process of the test, requirement according to the compressor air suction degree of superheat, refrigeration agent liquid level in the bucket has height to be had lowly, and the degree of superheat requires big, and liquid level is low, the degree of superheat requires low, liquid level is high, and its groundwork principle is that refrigerant gas passes through the bottom that vapour-liquid two-phase inlet tube 13 arrives gas cooler, when gas flow rate is low, will form gross blowhole, so in the bubble uphill process, allow its pressure tear net 4, resolve into some small bubble by gas, increase the heat exchange area between gas surface and the refrigeration agent like this, so just can reach the purpose of abundant heat exchange.The gas of low-temp low-pressure continues to rise in bucket, through high efficiency pariculate air 9, main purpose be with in the gas with little oil droplet filter, guarantee in the suction line band oil mass seldom, the measurement volumes flow is more accurate in the rear end.
When if gas cooler of the prior art is done the operating mode of low suction superheat, refrigeration agent liquid level in the cylindrical shell can be very high, all move to the refrigeration agent in the system in the tube, it is not very stable causing system, and liquid level also can't play the effect of filtering oil droplet after too high, above problem all can solve through after the existing transformation, reaches the stable effect of operating mode.
Claims (3)
1. gas cooler for positive displacement refrigerant compressor test unit, comprise cylindrical shell (6), cylindrical shell (6) is positioned on the support, the cylindrical shell top is provided with the air outlet and takes over (10), the bottom is provided with drain pipe (1), the cylindrical shell internal upper part is provided with screen cloth mechanism, and the bottom is provided with vapour-liquid two-phase inlet tube (13), and the flange connection mouth of vapour-liquid two-phase inlet tube (13) is positioned at cylindrical shell (6) outside; Cylindrical shell (6) sidewall of screen cloth mechanism bottom is provided with electric heating and takes over (7) and liquid level mirror adapter (8), it is characterized in that: described screen cloth mechanism comprises high efficiency pariculate air (9), high efficiency pariculate air (9) is positioned between upper-end surface pressing plate (11) and the lower end surface pressing plate (12), described upper-end surface pressing plate (11) and lower end surface pressing plate (12) are located in the cylindrical shell perpendicular to the central shaft of cylindrical shell (6), and are the coarse grid frame-like; Described high efficiency pariculate air (9) for Stainless Steel Wire group be pressed into plate-like;
The interior bottom of described cylindrical shell (6) is provided with gas and tears screen cloth mechanism, gas is torn screen cloth mechanism and is comprised that gas tears net (4), gas is torn net (4) and is positioned between top board (5) and the press table (3), described top board (5) and press table (3) be perpendicular to the central shaft of cylindrical shell (6), and be the coarse grid frame-like; Described gas tear net (4) for Stainless Steel Wire group be pressed into plate-like; The lower end of described vapour-liquid two-phase inlet tube (13) is passed gas and is torn screen cloth and reach cylindrical shell (6) bottom.
2. gas cooler for positive displacement refrigerant compressor test unit according to claim 1 is characterized in that: the thickness of described high efficiency pariculate air (9) is 150 millimeters, and the diameter of its Stainless Steel Wire is 0.25 millimeter.
3. gas cooler for positive displacement refrigerant compressor test unit according to claim 1 is characterized in that: the thickness that described gas is torn net (4) is 50 millimeters, and the diameter of its Stainless Steel Wire is 0.15 millimeter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102589807A CN101922446B (en) | 2010-08-13 | 2010-08-13 | Gas cooler for positive displacement refrigerant compressor test unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102589807A CN101922446B (en) | 2010-08-13 | 2010-08-13 | Gas cooler for positive displacement refrigerant compressor test unit |
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| CN101922446A true CN101922446A (en) | 2010-12-22 |
| CN101922446B CN101922446B (en) | 2012-10-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324587A (en) * | 2014-09-26 | 2015-02-04 | 常州友达环保科技有限公司 | Thin-hole sieve-plate-typed bubble column |
| CN105571344A (en) * | 2016-01-29 | 2016-05-11 | 徐星 | Micro-nano bubble circulating water temperature reducing device |
| CN109595140A (en) * | 2018-12-28 | 2019-04-09 | 合肥通用机械研究院有限公司 | A kind of horizontal type cooler for large-scale refrigeration compressor |
| CN111122190A (en) * | 2019-12-04 | 2020-05-08 | 合肥通用机械研究院有限公司 | Testing device and testing method for low superheat degree and large span testing of compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201132077Y (en) * | 2007-10-31 | 2008-10-15 | 宇星科技发展(深圳)有限公司 | Water-gas separator |
| CN201184762Y (en) * | 2008-01-08 | 2009-01-21 | 王全龄 | High-efficiency liquid-filled type coupling heat exchanger |
| CN201196530Y (en) * | 2008-04-08 | 2009-02-18 | 承慰才 | Gas-water separator for condensation water sampling apparatus of condenser |
| CN201747581U (en) * | 2010-08-13 | 2011-02-16 | 合肥通用机械研究院 | Gas cooler for a volumetric refrigerant compressor tester |
-
2010
- 2010-08-13 CN CN2010102589807A patent/CN101922446B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201132077Y (en) * | 2007-10-31 | 2008-10-15 | 宇星科技发展(深圳)有限公司 | Water-gas separator |
| CN201184762Y (en) * | 2008-01-08 | 2009-01-21 | 王全龄 | High-efficiency liquid-filled type coupling heat exchanger |
| CN201196530Y (en) * | 2008-04-08 | 2009-02-18 | 承慰才 | Gas-water separator for condensation water sampling apparatus of condenser |
| CN201747581U (en) * | 2010-08-13 | 2011-02-16 | 合肥通用机械研究院 | Gas cooler for a volumetric refrigerant compressor tester |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324587A (en) * | 2014-09-26 | 2015-02-04 | 常州友达环保科技有限公司 | Thin-hole sieve-plate-typed bubble column |
| CN105571344A (en) * | 2016-01-29 | 2016-05-11 | 徐星 | Micro-nano bubble circulating water temperature reducing device |
| CN109595140A (en) * | 2018-12-28 | 2019-04-09 | 合肥通用机械研究院有限公司 | A kind of horizontal type cooler for large-scale refrigeration compressor |
| CN111122190A (en) * | 2019-12-04 | 2020-05-08 | 合肥通用机械研究院有限公司 | Testing device and testing method for low superheat degree and large span testing of compressor |
| CN111122190B (en) * | 2019-12-04 | 2021-09-28 | 合肥通用机械研究院有限公司 | Testing device and testing method for low superheat degree and large span testing of compressor |
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| Publication number | Publication date |
|---|---|
| CN101922446B (en) | 2012-10-31 |
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Owner name: HEFEI GENERAL ENVIRONMENT CONTROL TECHNOLOGY CO., Free format text: FORMER OWNER: HEFEI UNIVERSAL MACHINERY INST. Effective date: 20140319 |
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Effective date of registration: 20140319 Address after: High tech Zone Hefei city Anhui province 230094 Xisi Road No. 9 (electromechanical Industrial Park) Patentee after: Hefei General Environment Control Technology Co., Ltd. Address before: 230031 Hefei Changjiang Road, Shushan District, Anhui, No. 888 Patentee before: Hefei Universal Machinery Inst. |