CN2177518Y - Filter of system for recovering and cleaning of cold media - Google Patents
Filter of system for recovering and cleaning of cold media Download PDFInfo
- Publication number
- CN2177518Y CN2177518Y CN 93243965 CN93243965U CN2177518Y CN 2177518 Y CN2177518 Y CN 2177518Y CN 93243965 CN93243965 CN 93243965 CN 93243965 U CN93243965 U CN 93243965U CN 2177518 Y CN2177518 Y CN 2177518Y
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- Prior art keywords
- refrigerant
- tube
- oil eliminator
- heat exchanger
- oil
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Abstract
The utility model relates to a filter of a system for recovering and cleaning cold media, which comprises a set of improved shell tube type heat exchangers and a front oil separator; the number of the hovering layers of the heat exchangers is increased; the traditional oil separator is simplified and lengthened; slender guiding pipes of a filter screen are covered by an inlet and an outlet pipes for cold media and are improved; the impurities and the oiliness in the cold media in a system can be filtered; the cold media can reach to the pure standard.
Description
The utility model is about a kind of recovery of novelty and purging system filter, and the structure of oil eliminator and heat exchanger can make the speed that reclaims with cleaning double before outstanding a group of improveing in this system of mat.
In view of the ozone layer broken hole in the earth sky increases apace, the broken hole on the South Pole in 1991 is about 20,000,000 square kilometres, expands to 23,000,000 square kilometres rapidly in 1992.U.S. scientist proves that also this broken hole is by person due to CFCs (CFC) lift-off of being used on the ground, ultraviolet ray in the sunlight can't be filtered, cause animal cataract, cutaneum carcinoma and immune system saboteur to quicken to increase, the mankind are the self-destruction earth just fast.Therefore in 1987, state has signed Montreal Protocol surplus the world 40, is predefined in to abrogate before finishing this century to use all CFC and other material that damages the ozone layer.And the CFC refrigerant that automotive air-conditioning system used will ban use of before December 31 nineteen ninety-five.About 3,700,000 of the existing automobile number in Taiwan encouraged to have now various refrigerant such as R12 and R22 etc. the R134a that Cheng Buhui damages the ozone layer that changes the outfit, so the time that changes the outfit is quite urgent.Right in present technology, as if can't reach this target.
Taiwan industrial research institute has developed and refrigerant recovering device and filling system, and has patented.It is characterized by in the importing of the liquid refrigerants in the steel cylinder refrigerant air heat exchanger, the heat steaming that mat absorbs air is gaseous state, recharges in the refrigerating and air conditioning system.So far, its technology has been transferred to four tame dealers among the people and has been produced.Find when so in fact using to still have problem to overcome, wait too slowly as recovery rate, situation is shut down in generation with compressor Yin Wendu is too high.
The device of prior art is made a copy of as shown in Figure 1 now with reference to one of this case Instructions Page 6 to eight page section (wherein wrong part is revised).Fig. 1 shows the system diagram of this refrigerant recovering and stowage unit.And the air-conditioning of automobile or other refrigerating and air conditioning system diagram do not show, reclaim refrigerant to refrigerant reservoir vessel 10, or the refrigerant of refrigerant reservoir vessel 10 are fills up to the air-conditioning system of automobile.Its equipment mainly comprises: a handing-over pipeline 20, a refrigerant flow control apparatus 30, a compression set 40, a vacuum extractor 50, a heat exchanger 60, a purifier 80 and are concentrated exhaust apparatus 70.
The pipeline 20 that wherein joins is made of low-pressure hose 21 and high-pressure hose 22, in order to be connected to refrigeration system (not shown).
Refrigerant flow control apparatus 30 is to be made of refrigerant pipeline and magnetic valve 31,32,33,34,35,36,37 and 38, establishes a check (non-return) valve 39 between magnetic valve 32,33,34 and 36, in order to control refrigerant and his like to.And refrigerant flow control apparatus 30 is to be connected with handing-over pipeline 20 and refrigerant holder 10.
Refrigerant compression set 40 mainly is made of package circle formula liquid gas separation/heat exchanger 41 and compressor 42, oil eliminator 43 before between liquid gas separation/heat exchanger 41 and compressor 42, being provided with, in order to the refrigeration oil in the refrigerant that separates recovery, after compressor 42, another back oil eliminator 44 is set, the refrigeration oil in the refrigerant of compressor outlet is led back compressor.And refrigerant compression set 40 is to be connected with refrigerant flow control apparatus 30.
Vacuum extractor 50(is vacuum pump for example) be to be connected with refrigerant flow control apparatus 30 by check (non-return) valve 51, in order to extract the on-condensible gas in the refrigerating and air conditioning system.
The other end of heat exchanger 60 can be connected with refrigerant flow control apparatus 30 by expansion valve 62 again, is connected with refrigerant reservoir vessel 10 via check (non-return) valve 63, drier 80, form 81 and concentrated exhaust apparatus 70 simultaneously.When expansion valve 62 ties up to the execution gaseous coolant filling of refrigerating and air conditioning system,, refrigerant is gasified totally in heat exchanger 60 to doing more effectively step-down and throttling by the liquid refrigerants that flows out in the refrigerant reservoir vessel 10.Drier 80 is impurity, water and the acid of reclaiming in the refrigerant in order to separate, and the humidity indicator on the form 81 can judge whether drier must be changed.And concentrate exhaust apparatus 70 is to be made of pressure gauge 71, pressure control switch 72, magnetic valve 73 and liquid reservoir 74, in order to getting rid of via pressure control switch 72 and magnetic valve 73 by the incondensable gas in the refrigerant of refrigerating and air conditioning system recoveries, with accumulation or the noncondensing condensation holder 10 that enters of avoiding incondensable gas, and the efficient of the rate of recovery and compressor 42 reduces, and the liquid reservoir 74 of concentrated exhaust apparatus 70 is delivered to refrigerant holder 10 then in order to concentrate the refrigerant that has liquefied.
Consider that patent working case effect is unclear; too slowly, wait problem as too high compressor shutdown and the recovery rate of making of occurrence temperature; order of the present utility model is to provide a kind of filter that is used for refrigerant recovering and purging system; wherein: one; redesign the structure of traditional liquid gas separation/heat exchanger 41; the abundant use interior little space of copper pipe of spiraling originally; make the copper pipe that spirals increase to two-layer by original one deck; make the HTHP gaseous coolant cooling of coming out by compressor; its heat is passed to refrigerant in heat exchanger, made before entering compressor can fully gasify (because liquid refrigerants can make compressor be badly damaged).Two, change the structure of conventional oil separators, make its designs simplification, with the saving cost, and change internal structure, make import and the very thin filter screen pipe lengthening that exports the socket of copper pipe institute in the traditional structure, and make it pass demarcation strip, at the bottom of the oil droplet of refrigeration oil being dripped easily flow out to tin, and when the flow direction outlet side, impingement baffles, foul or dirty oil are fallen down, to improve the effect of separating refrigeration oil.(annotate: the refrigeration oil of herein separating is dirty oil, therefore need be dumped.）
According to a kind of filter that is used for refrigerant recovering and purging system of the present utility model, contain one group of package circle formula heat exchanger and preceding oil eliminator;
This refrigerant recovering and purging system comprise a handing-over pipeline successively, a package circle formula heat exchanger, and a preceding oil eliminator, a compressor, a back oil eliminator, one air/refrigerant heat exchanger, one concentrates exhaust apparatus, a drier and a refrigerant storage cylinder;
Wherein body is a tubular outside the package circle formula heat exchanger, wherein inlet tube and outlet are respectively for the usefulness by the next refrigerant turnover of back oil eliminator, go out by the tube jacking, and barrel one side has another inlet tube, low temperature refrigerant by the handing-over pipeline can be flowed in the tube through managing thus, outlet by the tube top flows out to preceding oil eliminator again, it is characterized by:
The pipeloop that spirals that is come by the back oil eliminator is threaded to the end by tube top inlet tube according to downward steering wheel, after entering inner ring, the outlet that from bottom to top spirals out is reached the effect of maximum thermal exchange to utilize the confined space, refrigerant fully is heated enters preceding oil eliminator again for gaseous state;
Oil eliminator before being somebody's turn to do, containing a shell is tubular, in be divided into up and down two spaces with the horizontal subdivision plate, on this demarcation strip and two seams are arranged, and upper space be split up into another vertical partition plate again about two spaces, after the both sides cutting of this dividing plate, make on the plate to produce two vertical clearance gap, the sheet of cutting is pushed the space of entrance point to from here, clashes into the sheet of this two cutting when making the refrigerant of inlet side flow to outlet side, refrigeration oil or foul are fallen down, amass at the bottom of tube and discharge by the hole; There is an inlet tube to pass into left space by the tube top, the thin screen pack sheathed catheter of one iron is on pipe, one outlet then passes the tube top and extends right space, put a very thin screen pack conduit again, this is enclosed within the seam that the very thin screen pack conduit on the inlet tube passes on the demarcation strip and extend out to down in the space, and prizes the conduit tail is counter, in order to oil droplet at the bottom of the tube, and be enclosed within after very thin screen pack conduit on the outlet passes another seam on the demarcation strip, be folded to a side and make its sealing, make the oil droplet can't adverse current; Simultaneously the tube of oil eliminator should have a suitable length before this, makes this two conduits tail and amassing between refrigeration oil pasta separated at the bottom of the tube maintain a certain distance, and prevents from that refrigeration oil from being siphoned away to bring in this compressor by compressor to undermine compressor.
Below in conjunction with accompanying drawing in detail the utility model is described in detail.
Fig. 1 is the system pipes line chart of described existing patent case.
Fig. 2 is the system pipes line chart of the utility model simplification.
Fig. 3 A is the stereogram of the liquid gas separation/heat exchanger pipeline of tradition.
Fig. 3 B is the stereogram of the liquid gas separation/heat exchanger of the utility model.
Fig. 4 A is the utility model exploded view of oil eliminator before.
Fig. 4 B is the utility model side view of oil eliminator tube top branch before.
The system of Fig. 2 is the applicant's a utility model, its digital institute finger element can prolong with Fig. 1's, therefore system separate case apply for a patent, repeat no more, one group of heat exchanger of target of right the utility model and preceding oil eliminator remove the system that can be applicable to Fig. 2, also are applicable in the system of preceding patent case (being Fig. 1).The usefulness that this two figure is only for reference understanding the utility model heat exchanger and the position of preceding oil eliminator in system, repeats no more for the function of system.
Patent case or the used liquid gas/heat exchanger 41 of tradition before Fig. 3 A is depicted as, or be referred to as shell and tube heat exchanger, its profile is generally the cylinder column, it is identical that it taps into out copper pipe situation the utility model shown in Fig. 3 B, therefore omitted, be the screwed pipe that spirals of individual layer in it, promptly copper pipe from top to bottom, only around a circle more up, send to tube.
And the improver of the utility model institute is shown in Fig. 3 B, its profile is identical with traditional person, be barrel mast shape container, the main distinction is: inner bobbin is Duoed around a circle than traditional person, make the pipeline circle with reference to figure 3 by back oil eliminator 44() enter the pipe 411 of heat exchanger 41 from entering outward, passing tube top direction from top to bottom spirals, the pipe 412 of outflow then enters internal layer, from bottom to top flowed out by tube top, and a tube sidewall having an inlet tube 413, is by high-pressure hose 22 or low-pressure hose 21 and the person that has come again, after entering this heat exchanger, refrigerant heats up, and outlet 414 outflows by the tube top enter preceding oil eliminator again.Can make cost up though increase one deck, and at limited inner space again around one deck coil pipe, its technical difficulty is arranged, however test result, the effect of the utility model heat exchange improves greatly, causes following two kinds of good effects simultaneously:
One, make desire to enter before oil classification will enter compressor again from device 43() liquid refrigerants, no matter be liquid state or gaseous state in the past, can fully be heated in heat exchanger becomes gaseous state, because enter in the compressor if any liquid refrigerants, will cause compressor to be badly damaged.
Two, the high temperature refrigerant that flows to this heat exchanger 41 by back oil eliminator 44 can be passed to heat by automobile fully and receive the refrigerant that is stored in the heat exchanger, make cooling itself, this also makes the temperature of coolant reclaiming machine integral body reduce, and unlikelyly makes overheat of compressor and the jumping machine stops.
Shown in Fig. 4 A and 4B, shell is the barrel mast shape outside the preceding oil eliminator 43, inner demarcation strip 435 with level is divided into two spaces up and down, two seam 43A are arranged on this demarcation strip, 43B, and in the upper space again with another vertically every 437 be split up into about two spaces, after the both sides perpendicular cuts of this dividing plate 437, cutting blade is pushed to the left space of entrance point, on the dividing plate thereby produced two vertical clearance gap 43C and 43D(opposite side at 43C, and 432 among Fig. 4 A covers), collision helps to make refrigeration oil and foul to fall down by the outstanding cutting blade of vertical clearance gap 43C and 43D place in the time of can making the refrigerant of inlet side (left space) flow to outlet side like this; In addition, have an inlet tube 431 to be passed by the tube roof and enter left space, and very thin screen pack conduit 432 covers are arranged thereon, 433 of outlets pass the tube top and extend right space, put a very thin screen pack conduit 434 again.The tube end, also be provided with an oil drain out 430, to discharge refrigeration oil.Compare with traditional person, before this being characterized as of oil eliminator:
1, this is enclosed within very thin screen pack conduit 432 on the inlet tube 431 and passes seam 43A on the demarcation strip 435, and stretches out and enter down the space, lifts up its tail end is counter, at the bottom of draining into tin in order to freezing oil droplet again; And traditional person does not stretch into down in the space, and its tail end is sealed.
2, be enclosed within very thin screen pack conduit 434 on the outlet 433 pass another seam 43B on the demarcation strip 435 enter down the space rear enclosed it, and be folded to a side, make the oil droplet can't adverse current; And traditional person does not also stretch into down in the space.
When design, should making before this, the cylinder of oil eliminator should have a suitable height, make demarcation strip 435 and the pasta that amasss refrigeration oil separated at the bottom of tube keep certain space, when preventing to run into filter screen conduit tail when oil is long-pending too many, meeting be siphoned away by compressor and enter in the compressor.
As above-mentioned, compare as can be known with preceding case, it is all long than preceding case person with outlet 433 very thin filter screen shape conduits 432 and 434 that the secret of success of oil eliminator 43 designs promptly is enclosed within inlet tube 431 before the utility model, and case person is shorter before being designed to pass demarcation strip 435(, and do not pass demarcation strip), and the very thin filter screen tail end reflexed of inlet tube 432 is up lifted up, and the outlet person is folded to a side.
The effect of back oil eliminator 44 is that the refrigeration oil after the separation is passed back in the compressor through oil pipe 45 again, and (as shown in Figure 3A) makes the compressor can long-term operation, and the unexpected misgivings of losing refrigeration oil because of its structure is known, repeat no more.
Result after tested, the refrigerant recovering speed of preceding patent case is about per minute 300 grams, but this programme is gone through countless experiments and setback, as mentioned above, after finding to change the structure of package circle formula heat exchanger and preceding oil eliminator, the speed of refrigerant recovering rises to per minute 600 grams unexpectedly.And the effect of refrigeration oil separation is improved greatly.
The heat exchanger of the utility model is because of the cause of cold and hot refrigerant turnover, may have in the tube that refrigeration oil rests on heat exchanger, and can not guarantee after heat exchange, the refrigerant that flows out to compressor is pure gaseous state or does not contain refrigeration oil, so oil eliminator is indispensable install one additional between this heat exchanger and compressor before.And this heat exchanger and preceding oil eliminator the two volume and the size of caliber, closely bound up, when design whole recovery system, should be cognitive this two be one.If only select for use the two one of cooperate the system of tradition, then can't reach the effect of expection, so the applicant thinks that this two is indivisible.
Claims (1)
1, a kind of filter that is used for refrigerant recovering and purging system contains one group of package circle formula heat exchanger (41) and preceding oil eliminator (43);
This refrigerant recovering and purging system comprise a handing-over pipeline successively, a package circle formula heat exchanger, and a preceding oil eliminator, a compressor, a back oil eliminator, one air/refrigerant heat exchanger, one concentrates exhaust apparatus, a drier and a refrigerant storage cylinder;
Wherein body is a tubular outside the package circle formula heat exchanger (41), wherein inlet tube (411) is respectively for the usefulness by the next refrigerant turnover of back oil eliminator with outlet (412), go out by the tube jacking, and barrel one side has another inlet tube (413), low temperature refrigerant by the handing-over pipeline can be flowed in the tube through managing thus, outlet (414) by the tube top flows out to preceding oil eliminator again, it is characterized by:
The pipeloop that spirals that is come by back oil eliminator (44) is threaded to the end by tube top (436) inlet tube (411) according to downward steering wheel, after entering inner ring, outlet (412) from bottom to top spirals out, to utilize the confined space to reach the effect of maximum thermal exchange, refrigerant fully is heated enters preceding oil eliminator (43) again for gaseous state;
Oil eliminator (43) before being somebody's turn to do, containing a shell is tubular, in with horizontal subdivision plate branch (435) be about two spaces, on this demarcation strip and have two the seam (43A, 43B), and upper space be split up into another vertical partition plate (437) again about two spaces, after the both sides cutting of this dividing plate, make and produce two vertical clearance gap (43C on the plate, 43D), the sheet of cutting is pushed the space of entrance point to from here, clashes into the sheet of this two cutting when making the refrigerant of inlet side flow to outlet side, refrigeration oil or foul are fallen down, amass at the bottom of tube and discharge by hole (430); There is an inlet tube (431) to pass into left space by the tube top, one very thin screen pack conduit (432) is enclosed within on the pipe, one outlet (433) then passes the tube top and extends right space, put a very thin screen pack conduit (434) again, this is enclosed within very thin screen pack conduit (432) on the inlet tube and passes the last seam (43A) of demarcation strip (435) and extend out to down in the space, and prize the conduit tail is counter, in order to oil droplet at the bottom of the tube, and be enclosed within after the last very thin screen pack conduit (434) of outlet (433) passes another seam (43B) that demarcation strip (435) goes up, be folded to a side and make its sealing, make the oil droplet can't adverse current; Simultaneously the tube of oil eliminator should have a suitable length before this, makes this two conduits tail and amassing between refrigeration oil pasta separated at the bottom of the tube maintain a certain distance, and prevents from that refrigeration oil from being siphoned away to bring in this compressor by compressor to undermine compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243965 CN2177518Y (en) | 1993-11-05 | 1993-11-05 | Filter of system for recovering and cleaning of cold media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243965 CN2177518Y (en) | 1993-11-05 | 1993-11-05 | Filter of system for recovering and cleaning of cold media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177518Y true CN2177518Y (en) | 1994-09-21 |
Family
ID=33817289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93243965 Expired - Fee Related CN2177518Y (en) | 1993-11-05 | 1993-11-05 | Filter of system for recovering and cleaning of cold media |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177518Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791222A (en) * | 2014-01-22 | 2015-07-22 | 珠海格力电器股份有限公司 | Refrigerant oil recycling device and method |
| CN108826771A (en) * | 2018-07-13 | 2018-11-16 | 深圳市泰路科技有限公司 | A kind of refrigerant recovering filling apparatus |
| CN111156747A (en) * | 2020-01-10 | 2020-05-15 | 珠海格力电器股份有限公司 | Refrigerant cleaning device and method and air conditioner |
-
1993
- 1993-11-05 CN CN 93243965 patent/CN2177518Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791222A (en) * | 2014-01-22 | 2015-07-22 | 珠海格力电器股份有限公司 | Refrigerant oil recycling device and method |
| CN104791222B (en) * | 2014-01-22 | 2017-03-22 | 珠海格力电器股份有限公司 | Refrigerant oil recycling device and method |
| CN108826771A (en) * | 2018-07-13 | 2018-11-16 | 深圳市泰路科技有限公司 | A kind of refrigerant recovering filling apparatus |
| CN111156747A (en) * | 2020-01-10 | 2020-05-15 | 珠海格力电器股份有限公司 | Refrigerant cleaning device and method and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |