CN203083225U - Refrigerating system and oil separator thereof - Google Patents

Refrigerating system and oil separator thereof Download PDF

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Publication number
CN203083225U
CN203083225U CN2013200647794U CN201320064779U CN203083225U CN 203083225 U CN203083225 U CN 203083225U CN 2013200647794 U CN2013200647794 U CN 2013200647794U CN 201320064779 U CN201320064779 U CN 201320064779U CN 203083225 U CN203083225 U CN 203083225U
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China
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oil eliminator
oil
ring
demister
refrigeration
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CN2013200647794U
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Chinese (zh)
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不公告发明人
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Zhejiang Sanhua Intelligent Controls Co Ltd
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Zhejiang Sanhua Refrigeration Group Co Ltd
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Abstract

The utility model discloses a refrigerating system and an oil separator of the refrigerating system. The oil separator comprises a shell, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively communicated with a seal cavity of the shell. A demister is further arranged between the air inlet pipe and the air outlet pipe, so that air in the seal cavity enters the air outlet pipe after filtered through the demister, and the demister comprises a cannular check ring and a filtering component arranged in the check ring in an attached mode. According to the structure, after the mix of steam containing lubricating oil steam and refrigerant steam passes through the demister, the oil steam can be adsorbed and condensed to fluid oil drops, so that the refrigerant steam is separated individually and enters the air outlet pipe, namely the oil separator first separates the mixed gas into liquid lubricating oil and steam, then filters the steam and separates the steam into the lubricating oil and the refrigerant steam, thus the oil separation effect is improved, and the heat exchange effect of a heat exchanger is improved.

Description

A kind of refrigeration system and oil eliminator thereof
Technical field
The utility model relates to technical field of refrigeration equipment, relates in particular to a kind of refrigeration system and oil eliminator thereof.
Background technology
In the refrigeration system, when compressor output high pressure refrigerant vapor is given heat exchanger, also its internal partial lubricating oil also can be exported, if and these lubricating oil enter heat exchanger, can cause harmful effect to the heat-transfer effect of heat exchanger, therefore, need between compressor and heat exchanger, oil eliminator be set, be used to separate refrigerant vapour and lubricating oil, make cold-producing medium under " not having oil " state, enter heat exchanger, improve the heat-transfer effect of heat exchanger.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of oil eliminator in the prior art; Briefly introduce the course of work of this oil eliminator and the defective of existence thereof below.
As shown in Figure 1, this oil eliminator comprises housing 1, and housing 1 comprises upper end cover 11, bottom end cover 12 and cylindrical shell 13, and the three surrounds annular seal space 4; Cylindrical shell 13 sidewalls are provided with the air inlet pipe 31 that is provided with along its tangential direction, and upper end cover 11 is provided with escape pipe 32, and bottom end cover 12 is provided with flowline 33.
In the course of work, pass through the tangential direction inflow annular seal space 4 of air inlet pipe 31 from the lubricating oil of compressor discharge and the mixture of cold-producing medium along cylindrical shell 13 inwalls, this mixture rotates at housing 1 annular seal space 4, under the action of the centrifugal, mixture is isolated as liquid lubricating oil and steam gradually, oil droplet finally is deposited on bottom end cover 12 attached to the internal face of housing 1, move down along internal face, discharges through flowline 33; Steam rises to upper end cover 11, discharges through escape pipe 32.
This oil eliminator has following technological deficiency:
At first, this oil eliminator divides oily effect not thorough, only mixture can be separated into liquid lubricating oil and steam, and lubricating oil steam in the steam and refrigerant vapour are not had centrifugation, lubricating oil steam still can together enter heat exchanger by escape pipe 32 with refrigerant vapour, influences the heat-transfer effect of heat exchanger;
Secondly, fully rotate for making mixture, what usually the runner of separation process is provided with in the prior art is longer, causes the outer cover length of oil eliminator longer, and the volume of oil eliminator is bigger, is not suitable for the restricted occasion in installation site.
In view of this, demand urgently above-mentioned oil eliminator being done further optimal design, improve the oily effect of branch of oil eliminator, strengthen the heat-transfer effect of heat exchanger, and the volume that reduces oil eliminator makes it be applicable to workplace widely at above-mentioned technical problem.
The utility model content
The purpose of this utility model is for providing a kind of oil eliminator that is used for refrigeration system, and the oily effect of the branch of this oil eliminator is better, can strengthen the heat-transfer effect of heat exchanger, and has extensive applicability.In addition, another purpose of the present utility model is for providing a kind of refrigeration system that comprises above-mentioned oil eliminator.
For solving the problems of the technologies described above, the utility model provides a kind of oil eliminator that is used for refrigeration system, comprises housing, the air inlet pipe, the escape pipe that are communicated with the annular seal space of described housing respectively; Also be provided with demister between described air inlet pipe and the described escape pipe, so that the gas in the described annular seal space enters described escape pipe after described demister filters, described demister comprises the back-up ring of tubular and fits and be located at the interior filter element of described back-up ring.
Preferably, described oil eliminator also comprises flowline, and described demister is divided into first chamber and second chamber with described annular seal space, and described first chamber is communicated with described escape pipe, and described second chamber is communicated with described air inlet pipe, described flowline.
Preferably, described filter element is filter cotton or steel wire lump.
Preferably, described housing comprises upper end cover, cylindrical shell and the bottom end cover that connects successively, and described escape pipe, described back-up ring are connected in described upper end cover, and described flowline is connected in described bottom end cover, and described escape pipe, described back-up ring and described flowline are coaxial.
Preferably, described escape pipe, described back-up ring and described flowline three's axis is the central axis of described housing.
Preferably, described back-up ring is welded in described upper end cover.
Preferably, described air inlet pipe is along the tangential direction setting of described cylindrical shell.
Preferably, the diameter of described back-up ring is less than the diameter of described cylindrical shell, and the bottom of described back-up ring is lower than described air inlet pipe.
The utility model provides a kind of oil eliminator that is used for refrigeration system, comprises housing, the air inlet pipe, the escape pipe that are communicated with the annular seal space of described housing respectively; Also be provided with demister between described air inlet pipe and the described escape pipe, so that the gas in the described annular seal space enters described escape pipe after described demister filters, described demister comprises the back-up ring of tubular and fits and be located at the interior filter element of described back-up ring.
Adopt this structure, through behind the above-mentioned demister, can make it be condensed into liquid oil droplet by adsorbed oil steam, and being separated separately, refrigerant vapour enters escape pipe, be that above-mentioned oil eliminator at first is separated into mist liquid lubricating oil and steam, again steam filtered, is separated into lubricating oil and refrigerant vapour, compared with the prior art, this oil eliminator has improved the oily effect of branch greatly, has improved the heat exchange effect of heat exchanger.
The utility model also provides a kind of refrigeration system, comprises compressor, heat exchanger, is provided with the oil eliminator that separates cold-producing medium and lubricating oil between the two; Described oil eliminator adopts aforesaid oil eliminator.
Because above-mentioned oil eliminator has above-mentioned technique effect, therefore, the refrigeration system of using above-mentioned oil eliminator also should have identical technique effect, does not repeat them here.
Description of drawings
Fig. 1 is the structural representation of oil eliminator in the prior art;
Fig. 2 is the structural representation of a kind of specific embodiment of oil eliminator that the utility model provides;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the structural representation of the another kind of specific embodiment of oil eliminator that the utility model provides.
Wherein, Reference numeral among Fig. 1 to Fig. 4 and the corresponding relation between the component names are:
Housing 1; Upper end cover 11; Bottom end cover 12; Cylindrical shell 13;
Demister 2; Back-up ring 21; Filter element 22;
Air inlet pipe 31; Escape pipe 32; Oil-out 33;
Annular seal space 4; First chamber 41; Second chamber 42.
The specific embodiment
Core of the present utility model is for providing a kind of oil eliminator that is used for refrigeration system, and this oil eliminator has improved the oily effect of branch by back-up ring and demister are set, and has strengthened the heat exchange effect of heat exchanger, has improved its work applicability.In addition, another core of the present utility model is for providing a kind of refrigeration system that comprises above-mentioned oil eliminator.
In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the structural representation of a kind of specific embodiment of a kind of oil eliminator that the utility model provides; Fig. 3 is the vertical view of Fig. 2.
In a kind of specific embodiment, as shown in Figures 2 and 3, the utility model provides a kind of separator that is used for refrigeration system, and this separator comprises housing 1, demister 2 and pipeline.Housing 1 mainly comprises upper end cover 11, cylindrical shell 13 and the bottom end cover 12 that connects successively, and the three surrounds the annular seal space 4 of separator.Pipeline comprises air inlet pipe 31, escape pipe 32 and the flowline 33 that is communicated with annular seal space 4.Position in demister 2 annular seal spaces 4 between air inlet pipe 31 and the escape pipe 32, so that the gases in the annular seal space 4 enter escape pipe 32 after demister 2 filters, demister 2 comprises the back-up ring 21 of tubular and fits and be located at filter element 22 in the back-up ring 21.
Need to prove, herein " between air inlet pipe 31 and the escape pipe 32 " refer to gas after air inlet pipe 31 flows out to flowing into escape pipe 32 flow locations before, be not only fingering tracheae 31 and centre position after escape pipe 32 the two straight line are connected.
Above-mentioned filter element 22 can be varied, for example, the steel wire lump that can rotate, be wound in for elongated wire, rotation, the mode of twining can be carried out according to certain rule, also can ramblingly carry out.In addition, this filter element 22 can also other have the parts of filtration for screen pack of filter cotton, multi-layer intercrossed setting etc.
Be the course of work that example specifies above-mentioned separator below with the steel wire lump:
Adopt this structure, the lubricating oil that compressor is discharged and the mixture of cold-producing medium are flowed through after air inlet pipe 31 enters annular seal space 4, because the cross section sudden enlargement of passage makes the different liquid lubricating oil of density produce different flow velocitys with steam.The liquid lubricating oil that density is bigger still keeps bigger flow velocity, falls into housing 1 lower end from top to bottom, is deposited on the bottom of oil eliminator, gets back to compressor by oil return pipe again; The flow velocity of the mixed vapour that density is less then reduces and flows to also to change greatly, so far, has realized separating of liquid lubricating oil and mixed vapour, comprises lubricating oil steam and refrigerant vapour in this mixed vapour.Mixed vapour is when flowing through demister 2, oil vapour wherein and finer wire collide and are attached on the finer wire surface, continuous diffusion along with finer wire surface oil steam, make oil vapour form bigger oil droplet flow to two finer wires along finer wire interface point gradually, along with the wettability of finer wire, the surface tension of liquid and the capillarity of finer wire, make oil droplet increasing, when the oil droplet that converges arrived the gravity that himself produces greatly and surpasses making a concerted effort of surface tension of liquid, oil droplet just separated the whereabouts from finer wire.And huge change takes place in refrigerant vapour wherein flow velocity, flow direction by demister 2 time, passes filter element 22 then, in escape pipe 32 inflow heat exchangers.
This shows, through behind the above-mentioned demister 2, can make it be condensed into liquid oil droplet by adsorbed oil steam, and being separated separately, refrigerant vapour enters escape pipe 32, be that above-mentioned oil eliminator at first is separated into mist liquid lubricating oil and mixed vapour, again mixed vapour filtered, is separated into lubricating oil and refrigerant vapour, compared with the prior art, this oil eliminator has improved the oily effect of branch greatly, has improved the heat exchange effect of heat exchanger.
Above-mentioned back-up ring 21 can play certain isolation and guide effect, so that can only pass through filter element 22 from the bottom of back-up ring 21 from the mist of air inlet pipe 31 inflow annular seal spaces 4.In addition, filter element 22 applyings are arranged at back-up ring 21 inside, the mist of back-up ring 21 inside flow to escape pipe 32 after all filtering by filter element 22 so that flow through, the oil eliminator that filter element 22 and back-up ring 21 keep at a certain distance away of comparing, can avoid further guaranteeing the effect of oil eliminator above the filter element 22 and the phenomenon that can not get filtering of the mist between the back-up ring 21.
In the concrete scheme, above-mentioned demister 2 annular seal space 4 can be divided into first chamber 41 and second chamber, 42, the first chambers 41 are communicated with escape pipe 32, and second chamber 42 is communicated with air inlet pipe 31, flowline 33.
Can expect that as shown in Figure 4, Fig. 4 is the structural representation of the another kind of specific embodiment of oil eliminator that the utility model provides; Among this figure filter element 22 be full of escape pipe 32 inner to back-up ring 21 inner bottom have living space, like this, filter element 22 further increases, and can further strengthen the filtration to mist, further improves the oily effect of branch of oil eliminator.
The installation site of above-mentioned demister 2 and each pipeline can also further be set.
In the another kind of specific embodiment, above-mentioned escape pipe 32, back-up ring 21 can be connected in upper end cover 11, and flowline 33 is connected in bottom end cover 12, and escape pipe 32, back-up ring 21 and flowline 33 are coaxial.
Adopt this structure, corresponding escape pipe 32, back-up ring 21 and the flowline 33 that is provided with, after mixture is separated into oil droplet and mist, mist can pass through filter element 22 comparatively directly, apace and flow into escape pipes 32, in addition, after parts 22 filtered after filtration, the lubricated oil droplet that the lubricating oil steam in the mist condenses into also can flow into flowline 33 comparatively quickly and accurately.
Further in the scheme, above-mentioned escape pipe 32, back-up ring 21 and flowline 33 threes' axis is the central axis of housing 1.Like this, whole oil eliminator simple in structure, symmetrical has characteristics easy to process.
In addition, above-mentioned back-up ring 21 can adopt the mode of welding to be fixed in upper end cover 11, thereby guarantees the connection reliability of back-up ring 21 and upper end cover 11, and processing, manufacture method are simple, convenient.Certainly, back-up ring 21 can also be connected with upper end cover 11 by other modes, and is for example bonding, rivet or with the two integrally casting moulding etc.
The concrete installation site of the air inlet pipe 31 of above-mentioned oil eliminator can also further be set.
In the another kind of specific embodiment, above-mentioned air inlet pipe 31 can be along the tangential direction setting of cylindrical shell 13.
Adopt this structure, owing to the pressure of first mist that flows out from compressor outlet is higher, the flow velocity that this first mist is flowed through and had bigger tangential direction when the air inlet pipe 31 of tangential direction enters annular seal space 4 at first, be that mixture enters can spin along the internal face of housing 1 behind the annular seal space 4 and moves, under same housing 1 length, the flow process of first mist has greatly extended, this makes the length that can reduce housing 1 under the equal conditions, so that oil eliminator can be applicable to the more work occasion.
Further in the scheme, the diameter of above-mentioned back-up ring 21 can be less than the diameter of cylindrical shell 13, and the bottom of back-up ring 21 is lower than air inlet pipe 31.
Adopt this structure, can form annular compartment between back-up ring 21 and the housing 1, and the bottom of annular compartment is lower than air inlet pipe 31, and the mixture that more helps flowing out from the air inlet pipe 31 of tangential setting rotates around back-up ring 21 outsides, further guarantees the centrifugation of oil eliminator.
Certainly, diameter that can also back-up ring 21 is set to identical with the diameter of cylindrical shell 13, just adopts this structure, and cylindrical shell 13 and back-up ring 21 can not form annular compartment, can be poor slightly from the rotatablely moving of mixture that air inlet pipe 31 flows into annular seal spaces 4.
In addition, the utility model also provides a kind of refrigeration system, comprises compressor, heat exchanger, is provided with the oil eliminator that separates cold-producing medium and lubricating oil between the two; Oil eliminator adopts oil eliminator as above.
Because above-mentioned oil eliminator has above-mentioned technique effect, therefore, comprises that the refrigeration system of this oil eliminator also should have identical technique effect, does not repeat them here.
More than a kind of refrigeration system provided by the utility model and oil eliminator thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.

Claims (9)

1. an oil eliminator that is used for refrigeration system comprises housing (1), the air inlet pipe (31), the escape pipe (32) that are communicated with the annular seal space (4) of described housing (1) respectively; It is characterized in that, the position that is positioned in the described annular seal space (4) between described air inlet pipe (31) and the described escape pipe (32) is provided with demister (2), so that the gas in the described annular seal space (4) enters described escape pipe (32) after described demister (2) filters, described demister (2) comprises that the back-up ring (21) of tubular and applying be located at the interior filter element (22) of described back-up ring (21).
2. the oil eliminator that is used for refrigeration system according to claim 1, it is characterized in that, described oil eliminator also comprises flowline (33), described demister (2) is divided into first chamber (41) and second chamber (42) with described annular seal space (4), described first chamber (41) is communicated with described escape pipe (32), and described second chamber (42) is communicated with described air inlet pipe (31), described flowline (33).
3. the oil eliminator that is used for refrigeration system according to claim 1 is characterized in that, described filter element (22) is filter cotton or steel wire lump.
4. according to each described oil eliminator that is used for refrigeration system of claim 1-3, it is characterized in that, described housing (1) comprises upper end cover (11), cylindrical shell (13) and the bottom end cover (12) that connects successively, described escape pipe (32), described back-up ring (21) are connected in described upper end cover (11), described flowline (33) is connected in described bottom end cover (12), and described escape pipe (32), described back-up ring (21) and described flowline (33) are coaxial.
5. the oil eliminator that is used for refrigeration system according to claim 4 is characterized in that, described escape pipe (32), described back-up ring (21) and described flowline (33) three's axis is the central axis of described housing (1).
6. the oil eliminator that is used for refrigeration system according to claim 4 is characterized in that, described back-up ring (21) is welded in described upper end cover (11).
7. the oil eliminator that is used for refrigeration system according to claim 4 is characterized in that, described air inlet pipe (31) is along the tangential direction setting of described cylindrical shell (13).
8. the oil eliminator that is used for refrigeration system according to claim 7 is characterized in that, the diameter of described back-up ring (21) is less than the diameter of described cylindrical shell (13), and the bottom of described back-up ring (21) is lower than described air inlet pipe (31).
9. a refrigeration system comprises compressor, heat exchanger, is provided with the oil eliminator that separates cold-producing medium and lubricating oil between the two; It is characterized in that described oil eliminator adopts as each described oil eliminator of claim 1-8.
CN2013200647794U 2013-02-04 2013-02-04 Refrigerating system and oil separator thereof Active CN203083225U (en)

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CN2013200647794U CN203083225U (en) 2013-02-04 2013-02-04 Refrigerating system and oil separator thereof

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Application Number Priority Date Filing Date Title
CN2013200647794U CN203083225U (en) 2013-02-04 2013-02-04 Refrigerating system and oil separator thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766430A (en) * 2017-01-23 2017-05-31 浙江和利制冷设备有限公司 Refrigeration system rectification type gas-liquid oil eliminator
CN109990516A (en) * 2018-01-02 2019-07-09 浙江三花智能控制股份有限公司 A kind of oil eliminator and its refrigeration system
CN110006195A (en) * 2018-01-04 2019-07-12 浙江三花智能控制股份有限公司 Filter type oil separator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766430A (en) * 2017-01-23 2017-05-31 浙江和利制冷设备有限公司 Refrigeration system rectification type gas-liquid oil eliminator
CN109990516A (en) * 2018-01-02 2019-07-09 浙江三花智能控制股份有限公司 A kind of oil eliminator and its refrigeration system
CN109990516B (en) * 2018-01-02 2021-03-16 浙江三花智能控制股份有限公司 Oil separator and refrigerating system thereof
CN110006195A (en) * 2018-01-04 2019-07-12 浙江三花智能控制股份有限公司 Filter type oil separator

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GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20170221

Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Mei Zhu Zhen three flower Mei Zhu Industrial Park Administration Building

Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd

Address before: 312500 Liquan village of Chengguan Zhejiang city of Shaoxing province Xinchang County town

Patentee before: Sanhua Refrigeration Group Co., Ltd., Zhejang

C41 Transfer of patent application or patent right or utility model