CN104236183A - Filling gun of refrigerant filling machine - Google Patents
Filling gun of refrigerant filling machine Download PDFInfo
- Publication number
- CN104236183A CN104236183A CN201310235168.6A CN201310235168A CN104236183A CN 104236183 A CN104236183 A CN 104236183A CN 201310235168 A CN201310235168 A CN 201310235168A CN 104236183 A CN104236183 A CN 104236183A
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- valve
- refrigerant
- vacuum
- filling
- pipeline
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 117
- 238000005086 pumping Methods 0.000 claims description 41
- 239000002826 coolant Substances 0.000 claims description 30
- 241000009298 Trigla lyra Species 0.000 claims description 12
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract 2
- 230000010354 integration Effects 0.000 abstract 1
- 230000008676 import Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides a filling gun of a refrigerant filling machine. The filling gun comprises a vacuumizing pipeline, a refrigerant recovery pipeline, a refrigerant filling control pipeline and a refrigerant output pipeline. The refrigerant recovery pipeline is arranged on a branch pipeline of the vacuumizing pipeline. The vacuumizing pipeline is connected with the refrigerant output pipeline through a direct-acting solenoid valve and the refrigerant filling control pipeline is connected with the refrigerant output pipeline through a direct-acting solenoid valve. According to the filling gun of the refrigerant filling machine, the solenoid valves are used for replacing pneumatic valves; compared with the number of sealing pieces of the pneumatic valves, the number of sealing pieces of the solenoid valves is greatly reduced; closing force generated by the solenoid valves is large, reliable acting and sealing can be achieved, high reliability is realized and meanwhile, the filling precision is improved. The solenoid valves are integrated on two valve blocks, and therefore integration difficulty is reduced and maintenance is convenient.
Description
Technical field
The present invention relates to filling apparatus, particularly relate to a kind of refrigerant filling machine filling gun.
Background technology
Refrigerant filling machine is the key equipment of import, and the filling gun in equipment is custom component, for vacuum filling air conditioning for automobiles refrigerant.Tradition refrigerant filling gun structure is primarily of three built-in Pneumatic valves, composition such as control gas circuit and end face seal etc.Be set to inlet member in valve, because pneumatic control needs to use a lot of sealing ring, sealing member material and dimension precision requirement are very high, with blocking of easily wearing and tearing afterwards for a long time, cause the faults such as filling Small leak, the vacuum performance that gas blowby affects equipment also can occur.After running for many years, filling gun wear and aging is serious, and sealing property decline causing trouble is frequent.Filling gun small volume, is integrated with a large amount of elements, makes whole that the requirement on machining accuracy of filling gun is very high, and a large amount of element is integrated on a valve block and too increases integrated and maintenance difficulty, and domestic vendors is difficult to reach identical manufacture level.
Summary of the invention
In order to solve problem in prior art, the invention provides a kind of refrigerant filling machine filling gun.Comprise vacuum-pumping pipeline, refrigerant recovering pipeline, coolant charging control piper, refrigerant output pipe, described refrigerant recovering pipeline is located on a bye-pass of described vacuum-pumping pipeline, described vacuum-pumping pipeline connects described refrigerant output pipe by Direct-action electromagnetic valve, described coolant charging control piper connects described refrigerant output pipe by described Direct-action electromagnetic valve, and described Direct-action electromagnetic valve is installed on the first valve block and the second valve block respectively.
As a further improvement on the present invention, described Direct-action electromagnetic valve at least comprises vacuum valve, refrigerant suck back valve, coolant charging valve, described vacuum valve is installed on the second valve block, described refrigerant suck back valve and described coolant charging valve are installed on the first valve block, described refrigerant output pipe is provided with high pressure connection and low-pressure connector, described low-pressure connector connects described vacuum-pumping pipeline top by described vacuum valve, described high pressure connection connects described vacuum-pumping pipeline top by described refrigerant suck back valve, described high pressure connection connects the top of described coolant charging control piper, one end of described vacuum valve connects described refrigerant suck back valve, the other end of described refrigerant suck back valve connects described coolant charging valve.Vacuum valve, refrigerant suck back valve, coolant charging valve, facilitate realization to vacuumize by the open and close of each valve, refrigerant recovering, coolant charging work, magnetic valve latus rectum is comparatively large, and filling process shortens 3-5 second whole beat according to different adding amount than import rifle can improve for 10 seconds.The raising of beat and filling success rate improve, and can improve production line and once to roll off the production line qualification rate FTQ value, cost-saving with improve the quality of products.
As a further improvement on the present invention, described vacuum valve and described low-pressure connector adopt transparent hose to be connected, described refrigerant suck back valve and described high pressure connection also adopt transparent hose to be connected, and the connecting portion that described low-pressure connector, described high pressure connection, described vacuum valve, described refrigerant suck back valve are connected with described transparent hose all has tight lock assembly.Adopt transparent hose band to twist the form of lock-on connection soon, guarantee the reliability sealed.
As a further improvement on the present invention, vacuum transducer, vacuum detecting valve, vacuum pumping valve, vavuum pump is provided with in described vacuum-pumping pipeline, described vacuum detecting valve, vacuum pumping valve are installed on the second valve block, described vacuum detecting valve connects described vacuum transducer and both are located in another bye-pass of described vacuum-pumping pipeline, described vacuum pumping valve connects described vavuum pump, and the end of described vacuum-pumping pipeline is located at by described vavuum pump.Vacuum transducer, vacuum detecting valve, vacuum pumping valve, vavuum pump coordinated vacuumize, vacuum detecting testing.
As a further improvement on the present invention, refrigerant recovering pump, refrigerant recovering valve is provided with in described refrigerant recovering pipeline, described refrigerant recovering valve is installed on the first valve block, described refrigerant recovering pump connects one end of described refrigerant recovering valve, and the other end of described refrigerant recovering valve is connected with described vacuum pumping valve, described refrigerant recovering pipeline is also provided with accumulator.Refrigerant recovering pipeline can reclaim refrigerant and economize on resources.
As a further improvement on the present invention, described coolant charging control piper is provided with filling control valve and flowmeter, a port end of described filling control valve connects a port of described flowmeter, and the another port of described filling control valve is connected with the input of described accumulator, described filling control valve is installed on the first valve block.Accumulator is convenient to store refrigerant and reclaim refrigerant.Flowmeter Real-Time Monitoring filling flow, guaranteeing filling, everything goes well with your work completes.
As a further improvement on the present invention, described Direct-action electromagnetic valve has two magnetic valve seals.Two magnetic valve seals increase magnetic valve sealing, increase reliability and the security of filling process.
As a further improvement on the present invention, the shape of the enclosing cover of described refrigerant filling machine filling gun is cuboid.
As a further improvement on the present invention, describedly outer hanging parts have been covered.Filling gun main body human engineering improves, and no longer needs operator to carry rifle, reduces labor intensity and shortens operation and walking time simultaneously.
As a further improvement on the present invention, described outer covering also has some through holes.Through hole passes through for control cable and sleeve pipe.
The invention has the beneficial effects as follows: the present invention adopts Direct-action electromagnetic valve to replace Pneumatic valve, and valve is the external structure that can simplify filling gun, magnetic valve seal comparatively Pneumatic valve greatly reduces, the closing force that magnetic valve produces is larger, can action reliably and sealing, improve the precision of filling while high reliability.High 1 times of the magnetic valve pneumatic operated valve of resistance to pressure ratio reaches 40Bar, and average each magnetic valve seal reduces to 2 by the Pneumatic valve 12 of original import filling gun, and reliability improves greatly, and can eliminate the impact of compressed air on vacuum capability.The integrated employing bivalve blocks design of filling gun, reduces integrated difficulty.The installation of magnetic valve does not need to disassemble to reinstall, and each element replacement is non-interference, makes convenient and fast connection more reliable.Breakdown maintenance cost can be reduced simultaneously.
Accompanying drawing explanation
Fig. 1 is refrigerant filling machine filling gun operation principle schematic diagram of the present invention;
Fig. 2 is refrigerant filling machine filling gun bivalve blocks design structural representation of the present invention;
Fig. 3 is refrigerant filling machine filling gun outer cover structure schematic diagram of the present invention.
In figure, each component names is as follows:
1. vacuum valve 2. coolant charging valve 3. refrigerant suck back valve 4. high pressure connection 5. low-pressure connector 6. vacuum pumping valve 7. vavuum pump 8. vacuum detecting valve 9. vacuum transducer 10. accumulator 11. is annotated control valve 12. flowmeter
13. refrigerant recovering pump 14. refrigerant recovering valves.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
The invention provides a kind of refrigerant filling machine filling gun, comprise vacuum-pumping pipeline, refrigerant recovering pipeline, coolant charging control piper, refrigerant output pipe, refrigerant recovering pipeline is located on a bye-pass of vacuum-pumping pipeline, vacuum-pumping pipeline connects refrigerant output pipe by Direct-action electromagnetic valve, and coolant charging control piper connects refrigerant output pipe by Direct-action electromagnetic valve.Vacuum-pumping pipeline is connected with refrigerant suck back valve 3 by vacuum valve 1 with refrigerant output pipe, and coolant charging control piper is connected by coolant charging valve 2 with refrigerant output pipe.Refrigerant output pipe is provided with high pressure connection 4 and low-pressure connector 5, and one end of high pressure connection 4 and coolant charging valve 2 and refrigerant suck back valve 3 are connected with transparent hose and connect.One end of low-pressure connector 5 is connected with vacuum valve 1.The connection of each valve and joint all adopts transparent hose to connect, and has tight lock assembly in joint portion, is convenient to sealing.Vacuum valve 1 is connected the top of vacuum-pumping pipeline with the other end of refrigerant suck back valve 3, and one end of coolant charging valve 2 connects the top of refrigerant recovering pipeline.The top of all pipelines described in literary composition all refers to that one end that each pipeline is connected with vacuum valve 1, coolant charging valve 2, refrigerant suck back valve 3.Be provided with vacuum transducer 9 in vacuum-pumping pipeline, vacuum detecting valve 8, vacuum detecting valve 8 connects vacuum transducer 9 and both are positioned on another bye-pass of vacuum-pumping pipeline.Vacuum-pumping pipeline is also provided with vacuum pumping valve 6 and vavuum pump 7, vacuum pumping valve 6 connects vavuum pump 7, and vavuum pump 7 is positioned at the end of vacuum-pumping pipeline.Be provided with refrigerant recovering valve 14 and refrigerant recovering pump 13 in refrigerant recovering pipeline, one end of refrigerant recovering valve 14 is connected with vacuum pumping valve 6, and the other end connecting refrigerant recovering pump 13, being also provided with accumulator 10, for reclaiming refrigerant at the end of refrigerant recovering pipeline.Flowmeter 12 and filling control valve 11 is provided with in coolant charging control piper.One end of filling control valve 11 is connected with accumulator 10, other end connection traffic meter 12.Each magnetic valve has 2 seals.Vacuum valve 1, vacuum pumping valve 6, vacuum detecting valve 8 are installed on the second valve block, and coolant charging valve 2, refrigerant suck back valve 3, refrigerant recovering valve 14, filling control valve 11 are installed on the first valve block.The control system for controlling each pipeline is had in filling gun.The enclosing cover of refrigerant filling machine filling gun is cuboid.Being provided with hanging parts above can for filling gun hanging, and human engineering improves, and no longer needs operator to carry rifle, reduces labor intensity and shortens operation and walking time simultaneously.Cover the through hole that can pass through for control cable and sleeve pipe outward.
The filling of refrigerant filling machine filling gun mainly contains three large steps: vacuumize, vacuum detecting, coolant charging, refrigerant recovering.
Vacuumize: high pressure connection 4 on rifle head and low-pressure connector 5 are combined with automobile refrigerating agent system filler.By the start button on rifle.Vacuum valve 1 and refrigerant suck back valve 3 are opened, and vacuum pumping valve 6 and vavuum pump 7 are opened, and vacuum detecting valve 8 is opened, and vacuum transducer 9 detects vacuum values in real time, and vavuum pump extracts vehicle loop gas.The vacuum threshold that this step is set by the time and presets controls, and fail to reach if terminate threshold value in timing, equipment sends gross leak fault, and circulation must stop
Vacuum detecting: vacuum pumping valve 6 is closed, in certain hour, vacuum need reach certain limit value, such as 5mBar/10s.This step is controlled by the vacuum threshold of timing and setting, if terminate in timing the vacuum threshold (pressure increase is too fast) not reaching setting, equipment sends the prompting of Small leak, and circulation must stop carrying out.
Coolant charging: vacuum valve 1 and refrigerant suck back valve 3 are closed, and vacuum detecting valve 8 cuts out.Coolant charging valve 2 is opened, and refrigerant flows through flowmeter 12 from accumulator 10 by filling control valve 11 and is filled into automotive air-conditioning system, and flowmeter 12 shows adding amount.Refrigerant is filled into vehicle loop from accumulator, uses measurement arteries and veins to fill and can calculate adding amount with measuring tempeature numerical parameter.After inside loop, adding amount reaches set amount, filling stops, if set amount does not also reach after the filling time terminates, equipment sends the prompting of filling bug.
Refrigerant recovering: vacuum valve 1 and coolant charging valve 2 are closed, and vacuum detecting valve 8 cuts out, and refrigerant suck back valve 3 is opened, and refrigerant is pumped back to accumulator 10 from refrigerant recovering valve 14 by refrigerant recovering.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a refrigerant filling machine filling gun, it is characterized in that: comprise vacuum-pumping pipeline, refrigerant recovering pipeline, coolant charging control piper, refrigerant output pipe, described refrigerant recovering pipeline is located on a bye-pass of described vacuum-pumping pipeline, described vacuum-pumping pipeline connects described refrigerant output pipe by Direct-action electromagnetic valve, described coolant charging control piper connects described refrigerant output pipe by described Direct-action electromagnetic valve, and described Direct-action electromagnetic valve is installed on the first valve block and the second valve block respectively.
2. refrigerant filling machine filling gun according to claim 1, it is characterized in that: described Direct-action electromagnetic valve comprises vacuum valve (1), refrigerant suck back valve (3), coolant charging valve (2), described vacuum valve (1) is installed on the second valve block, described refrigerant suck back valve (3) and described coolant charging valve (2) are installed on the first valve block, described refrigerant output pipe is provided with high pressure connection (4) and low-pressure connector (5), described low-pressure connector (5) connects described vacuum-pumping pipeline top by described vacuum valve (1), described high pressure connection (4) connects described vacuum-pumping pipeline top by described refrigerant suck back valve (3), described high pressure connection (4) connects the top of described coolant charging control piper, one end of described vacuum valve (1) connects described refrigerant suck back valve (3), the other end of described refrigerant suck back valve (3) connects described coolant charging valve.
3. refrigerant filling machine filling gun according to claim 2, it is characterized in that: described vacuum valve (1) adopts transparent hose to be connected with described low-pressure connector (5), described refrigerant suck back valve (3) and described high pressure connection (4) also adopt transparent hose to be connected, and the connecting portion that described low-pressure connector (5), described high pressure connection (4), described vacuum valve (1), described refrigerant suck back valve (3) are connected with described transparent hose all has tight lock assembly.
4. refrigerant filling machine filling gun according to claim 1, it is characterized in that: in described vacuum-pumping pipeline, be provided with vacuum transducer (9), vacuum detecting valve (8), vacuum pumping valve (6), vavuum pump (7), described vacuum detecting valve (8), vacuum pumping valve (6) are installed on the second valve block, described vacuum detecting valve (8) connects described vacuum transducer (9) and both are located in another bye-pass of described vacuum-pumping pipeline, described vacuum pumping valve (6) connects described vavuum pump (7), and the end of described vacuum-pumping pipeline is located at by described vavuum pump (7).
5. refrigerant filling machine filling gun according to claim 4, it is characterized in that: in described refrigerant recovering pipeline, be provided with refrigerant recovering pump (13), refrigerant recovering valve (14), described refrigerant recovering valve (14) is installed on the first valve block, described refrigerant recovering pump (13) connects one end of described refrigerant recovering valve (14), and the other end of described refrigerant recovering valve (14) is connected with described vacuum pumping valve (6), described refrigerant recovering pipeline is also provided with accumulator (10).
6. refrigerant filling machine filling gun according to claim 5, it is characterized in that: described coolant charging control piper is provided with filling control valve (11) and flowmeter (12), a port end of described filling control valve (11) connects a port of described flowmeter (12), and the another port of described filling control valve (11) is connected with the input of described accumulator (10), described filling control valve (11) is installed on the first valve block.
7. refrigerant filling machine filling gun according to claim 1, is characterized in that: described Direct-action electromagnetic valve has two magnetic valve seals.
8. the refrigerant filling machine filling gun according to claim 1 to 7 any one, is characterized in that: the shape of the enclosing cover of described refrigerant filling machine filling gun is cuboid.
9. refrigerant filling machine filling gun according to claim 8, is characterized in that: covered hanging parts outside described.
10. refrigerant filling machine filling gun according to claim 9, is characterized in that: described outer covering also has some through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310235168.6A CN104236183B (en) | 2013-06-14 | 2013-06-14 | A kind of refrigerant filling machine filling gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310235168.6A CN104236183B (en) | 2013-06-14 | 2013-06-14 | A kind of refrigerant filling machine filling gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104236183A true CN104236183A (en) | 2014-12-24 |
| CN104236183B CN104236183B (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310235168.6A Expired - Fee Related CN104236183B (en) | 2013-06-14 | 2013-06-14 | A kind of refrigerant filling machine filling gun |
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| Country | Link |
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| CN (1) | CN104236183B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180535A (en) * | 2015-09-28 | 2015-12-23 | 合肥欧恩易机电科技有限公司 | Refrigerant filling machine |
| CN113776234A (en) * | 2021-09-27 | 2021-12-10 | 陕西凯尔利尼冷冻空调有限公司 | Method for utilizing heat in low-temperature air |
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|---|---|---|---|---|
| US20010025496A1 (en) * | 2000-03-30 | 2001-10-04 | Behr Gmbh & Co. | Filling device for motor vehicle air-conditioning systems |
| CN2742351Y (en) * | 2004-10-27 | 2005-11-23 | 深圳市元征科技股份有限公司 | Cold medium recovery and refilling device |
| CN101769655A (en) * | 2010-01-25 | 2010-07-07 | 大连三洋压缩机有限公司 | Automatic recovery and fill system of refrigeration system |
| CN201837155U (en) * | 2010-10-25 | 2011-05-18 | 蒋友荣 | Improved structure of refrigerant recycling filling machine |
| EP2381194A2 (en) * | 2010-03-30 | 2011-10-26 | FIMAC S.p.A. | Machine for recovering and refilling refrigerant fluid, particularly for aeronautic use |
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| CN203605560U (en) * | 2013-06-14 | 2014-05-21 | 上汽通用五菱汽车股份有限公司 | Filling gun of refrigerant filling machine |
-
2013
- 2013-06-14 CN CN201310235168.6A patent/CN104236183B/en not_active Expired - Fee Related
Patent Citations (7)
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|---|---|---|---|---|
| US20010025496A1 (en) * | 2000-03-30 | 2001-10-04 | Behr Gmbh & Co. | Filling device for motor vehicle air-conditioning systems |
| CN2742351Y (en) * | 2004-10-27 | 2005-11-23 | 深圳市元征科技股份有限公司 | Cold medium recovery and refilling device |
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| EP2381194A2 (en) * | 2010-03-30 | 2011-10-26 | FIMAC S.p.A. | Machine for recovering and refilling refrigerant fluid, particularly for aeronautic use |
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Non-Patent Citations (1)
| Title |
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| 梁月华: "浅析冷媒加注枪的原理及结构", 《装备制造技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180535A (en) * | 2015-09-28 | 2015-12-23 | 合肥欧恩易机电科技有限公司 | Refrigerant filling machine |
| CN105180535B (en) * | 2015-09-28 | 2017-08-29 | 合肥欧恩易机电科技有限公司 | A kind of refrigerant filling machine |
| CN113776234A (en) * | 2021-09-27 | 2021-12-10 | 陕西凯尔利尼冷冻空调有限公司 | Method for utilizing heat in low-temperature air |
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| Publication number | Publication date |
|---|---|
| CN104236183B (en) | 2017-08-18 |
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Granted publication date: 20170818 |