CN103743172A - Air conditioner refrigerant anti-reflux safe injecting device - Google Patents
Air conditioner refrigerant anti-reflux safe injecting device Download PDFInfo
- Publication number
- CN103743172A CN103743172A CN201310746009.2A CN201310746009A CN103743172A CN 103743172 A CN103743172 A CN 103743172A CN 201310746009 A CN201310746009 A CN 201310746009A CN 103743172 A CN103743172 A CN 103743172A
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- Prior art keywords
- refrigerant
- air
- steel ball
- valve
- low pressure
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 55
- 230000000151 anti-reflux effect Effects 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000004378 air conditioning Methods 0.000 claims description 49
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 5
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 208000002925 dental caries Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The invention discloses an air conditioner refrigerant anti-reflux safe injecting device which is used for solving the technical problem that the existing air conditioner refrigerant injecting device is poor in safety. According to the technical scheme, a steel ball (3) and a limit pin (6) are added based on the air conditioner refrigerant injecting device; the steel ball (3) and the limit pin (6) are installed into a hollow chamber of an air conditioner lower pressure injecting opening (2) to form into an anti-reflex valve; the refrigerant is guaranteed one-way flowing from a refrigerant pot to the air conditioner lower pressure injecting opening (2) during the refrigerant injecting process due to the design of the anti-reflux valve; if the refrigerant injecting device is connected to a high pressure output opening, a communication route from the high pressure output opening to the refrigerant pot is cut off instantly due to the fact that the steel ball (3) in the anti-reflux valve seals a refrigerant flowing route, accordingly the refrigerant pot explosion which is caused by high pressure gas backflow is avoided and safety of the air conditioner refrigerant injecting device is improved.
Description
Technical field
The present invention relates to a kind of air-conditioning refrigerant and rush dispensing device, particularly relate to a kind of air-conditioning refrigerant counterflow-preventing and rush safely dispensing device.
Background technology
After a period of time, often there is the fault that cold-producing medium need to be supplementary in operation of air conditioner.The interpolation of air-conditioning refrigerant need to be injected by the low pressure injection port of air-conditioning system.Yet, near low-pressure port, often have a similar High voltage output port.Because high and low pressure port is closely similar on outward appearance and connecting interface, and lack corresponding safety and Protection on traditional maintenance filling cold-producing medium jockey, maintenance personal is in maintenance filling cold-producing medium process, there will be the cold-producing medium that should be connected to low pressure injection port to rush note equipment and be connected to High voltage output port by mistake, thereby make high-pressure refrigerant directly be communicated to cold-producing medium Packaging Bottle, cause rushing and in note process, frequently occur cold-producing medium Packaging Bottle blast human casualty accident.
According to statistics, owing to lacking on domestic market, possess the cold-producing medium that by mistake connects function of safety protection and rush note equipment, only 2013 1 year, domestic certain famous brand name car air conditioner refrigerant just occurred more than 20 and has played bottle explosion accident in maintenance process.
Summary of the invention
In order to overcome existing air-conditioning refrigerant, rush the deficiency of dispensing device poor stability, the invention provides a kind of air-conditioning refrigerant counterflow-preventing and rush safely dispensing device.This device rushes and on dispensing device basis, has increased steel ball and spacer pin at air-conditioning refrigerant.The cavity that steel ball and spacer pin pack air-conditioning low pressure injection port into forms valve for preventing reverse-flow.Due to the design of valve for preventing reverse-flow, can guarantee that cold-producing medium rushes cold-producing medium in note process can only be from refrigerant tank to air-conditioning low pressure injection port one-way flow; Once incorrect link is to air-conditioning High voltage output port, due to steel ball sealing in valve for preventing reverse-flow refrigerant flow paths, communication paths from High voltage output port to refrigerant tank can be ended moment, thereby prevent the refrigerant tank blast that gases at high pressure reflux and cause, can improve the security that air-conditioning refrigerant rushes dispensing device.
The technical solution adopted for the present invention to solve the technical problems is: a kind of air-conditioning refrigerant counterflow-preventing rushes safely dispensing device, comprise rotary valve 1, air-conditioning low pressure is injected connectivity port 2, refrigerant tank connectivity port 4 and valve thimble 5, rotary valve 1 is connected with the afterbody of valve thimble 5, the head of valve thimble 5 coordinates with refrigerant tank connectivity port 4, valve thimble 5 exits, air-conditioning low pressure is injected connectivity port 2 and is formed current path with refrigerant tank connectivity port 4, valve thimble 5 advances, air-conditioning low pressure is injected connectivity port 2 and is cut off with the current path of refrigerant tank connectivity port 4, be characterized in: also comprise steel ball 3 and spacer pin 6.The cavity that steel ball 3 and spacer pin 6 pack air-conditioning low pressure injection port 2 into forms valve for preventing reverse-flow.Described air-conditioning low pressure injection port 2 is the cavitys that are a bit larger tham steel ball 3 diameters, to put into smoothly steel ball 3, is as the criterion, and the bottom of cavity is the semi-circular shape consistent with steel ball 3 curvature, coordinates one-way sealing current path with steel ball 3.The cavity opening direction limited location pin 6 that is threaded, spacer pin 6 is hollow shape.Between steel ball 3 and spacer pin 6, leave the gap that air feed stream passes through.
The invention has the beneficial effects as follows: at air-conditioning refrigerant, rush and on dispensing device basis, increased steel ball and spacer pin.The cavity that steel ball and spacer pin pack air-conditioning low pressure injection port into forms valve for preventing reverse-flow.Due to the design of valve for preventing reverse-flow, having guaranteed that cold-producing medium rushes cold-producing medium in note process can only be from refrigerant tank to air-conditioning low pressure injection port one-way flow; Once incorrect link is to air-conditioning High voltage output port, due to steel ball sealing in valve for preventing reverse-flow refrigerant flow paths, communication paths from High voltage output port to refrigerant tank can be ended moment, thereby prevent the refrigerant tank blast that gases at high pressure reflux and cause, improved the security that air-conditioning refrigerant rushes dispensing device.
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation that air-conditioning refrigerant counterflow-preventing of the present invention rushes safely dispensing device.
Fig. 2 is the cutaway view of Fig. 1.
In figure, 1-rotary valve, 2-air-conditioning low pressure is injected connectivity port, 3-steel ball, 4-refrigerant tank connectivity port, 5-valve thimble, 6-spacer pin.
The specific embodiment
With reference to Fig. 1-2.Air-conditioning refrigerant counterflow-preventing of the present invention rushes safely dispensing device and comprises rotary valve 1, air-conditioning low pressure injection connectivity port 2, steel ball 3, refrigerant tank connectivity port 4 and valve thimble 5.When air-conditioning refrigerant punching note, first rotary valve 1 is outwarded winding, connect refrigerant tank connectivity port 4 and refrigerant tank, connect air-conditioning low pressure and inject connectivity port 2 and air-conditioning low-pressure port.Then screw rotary valve 1, make valve thimble 5 penetrate refrigerant tank, unscrew afterwards rotary valve 1, refrigerant tank connectivity port 4 and air-conditioning low pressure are injected between connectivity port 2 and formed path, cold-producing medium is flowed into air-conditioning low pressure injection port, carries out cold-producing medium punching note.
Air-conditioning refrigerant counterflow-preventing of the present invention rushes safely dispensing device and rushes and on dispensing device basis, increase valve for preventing reverse-flow design in tradition.Valve for preventing reverse-flow injects between connectivity port 2 and rotary valve 1 in air-conditioning low pressure.Specific implementation is to rush on the air-conditioning low pressure injection port 2 of dispensing device and the path of rotary valve 1 and add steel ball 3 in tradition, and the cavity that steel ball 3 and spacer pin 6 pack air-conditioning low pressure injection port 2 into forms valve for preventing reverse-flow.Air-conditioning low pressure injection port 2 is the cavitys that are a bit larger tham steel ball 3 diameters, to put into smoothly steel ball 3, is as the criterion, and the bottom of cavity is the semi-circular shape consistent with steel ball 3 curvature, coordinates one-way sealing current path with steel ball 3.The cavity opening direction limited location pin 6 that is threaded, spacer pin 6 is hollow shape.Between steel ball 3 and spacer pin 6, leave the gap that air feed stream passes through.When normal punching note, gas is entered via rotary valve 1 by refrigerant tank, and gas pressure promotes steel ball path is opened.When the connection that makes a mistake, while causing air-conditioning low pressure injection port 2 to be connected to air-conditioning High voltage output port, the gases at high pressure of being exported by air-conditioning high-voltage output end will promote steel ball and move to bottom, make the path cut-off between air-conditioning low pressure injection port 2 and rotary valve 1.Thereby prevent the refrigerant tank blast that gases at high pressure reflux and cause.
Apply above-mentioned air-conditioning refrigerant counterflow-preventing and rush safely dispensing device, air conditioning for automobiles is carried out to cold-producing medium punching note, can effectively avoid the high and low pressure port mistake causing due to operate miss to connect the cold-producing medium Packaging Bottle explosion accident causing, and simplicity of design, effective.
Claims (1)
1. an air-conditioning refrigerant counterflow-preventing rushes safely dispensing device, comprise rotary valve (1), air-conditioning low pressure is injected connectivity port (2), refrigerant tank connectivity port (4) and valve thimble (5), rotary valve (1) is connected with the afterbody of valve thimble (5), the head of valve thimble (5) coordinates with refrigerant tank connectivity port (4), valve thimble (5) exits, air-conditioning low pressure is injected connectivity port (2) and is formed current path with refrigerant tank connectivity port (4), valve thimble (5) advances, air-conditioning low pressure is injected connectivity port (2) and is cut off with the current path of refrigerant tank connectivity port (4), it is characterized in that: also comprise steel ball (3) and spacer pin (6), the cavity that steel ball (3) and spacer pin (6) pack air-conditioning low pressure injection port (2) into forms valve for preventing reverse-flow, described air-conditioning low pressure injection port (2) is the cavity that is a bit larger tham steel ball (3) diameter, to put into smoothly steel ball (3), is as the criterion, and the bottom of cavity is the semi-circular shape consistent with steel ball (3) curvature, coordinates one-way sealing current path with steel ball (3), the cavity opening direction limited location pin (6) that is threaded, spacer pin (6) is hollow shape, between steel ball (3) and spacer pin (6), leave the gap that air feed stream passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746009.2A CN103743172B (en) | 2013-12-30 | 2013-12-30 | Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310746009.2A CN103743172B (en) | 2013-12-30 | 2013-12-30 | Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103743172A true CN103743172A (en) | 2014-04-23 |
| CN103743172B CN103743172B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310746009.2A Expired - Fee Related CN103743172B (en) | 2013-12-30 | 2013-12-30 | Air-conditioning refrigerant counterflow-preventing rushes safely dispensing device |
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| Country | Link |
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| CN (1) | CN103743172B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678442A (en) * | 2016-12-21 | 2017-05-17 | 佛山市顺德区鼎联智能科技有限公司 | Pipeline piercing valve |
| CN107642475A (en) * | 2017-08-08 | 2018-01-30 | 江苏昊科汽车空调有限公司 | The automobile air conditioner compressor of stabilizing energy-saving |
| CN109028668A (en) * | 2017-06-08 | 2018-12-18 | 杭州致宏进出口有限公司 | A kind of car air conditioner refrigerant adding set |
| CN110398096A (en) * | 2019-08-05 | 2019-11-01 | 杭州铭铄机电科技有限公司 | A kind of air conditioner coolant filling the adjustable of machine rushes head |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576015A (en) * | 1983-04-14 | 1986-03-18 | Crawford A Gerrit | Lightweight high pressure tubular storage system for compressed gas and method for cryogenic pressurization |
| JPH0674615A (en) * | 1993-06-14 | 1994-03-18 | Nippon Piston Ring Co Ltd | Fluid charging connector |
| CN2632597Y (en) * | 2003-07-10 | 2004-08-11 | 刘万国 | Joint with fillig refrigerant |
| KR20090036305A (en) * | 2007-10-09 | 2009-04-14 | (주)피티씨 | Stopcork for refrigerant tank in chiller apparatus |
| CN102155826A (en) * | 2010-12-15 | 2011-08-17 | 赵敏 | One-way movable throttle valve and air-conditioning outdoor unit using same |
| CN202066264U (en) * | 2011-04-30 | 2011-12-07 | 林勇 | One-way liquid charging pipe |
| CN203704479U (en) * | 2013-12-30 | 2014-07-09 | 西安邮电大学 | Air-conditioner refrigerant safely filling device |
-
2013
- 2013-12-30 CN CN201310746009.2A patent/CN103743172B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576015A (en) * | 1983-04-14 | 1986-03-18 | Crawford A Gerrit | Lightweight high pressure tubular storage system for compressed gas and method for cryogenic pressurization |
| JPH0674615A (en) * | 1993-06-14 | 1994-03-18 | Nippon Piston Ring Co Ltd | Fluid charging connector |
| CN2632597Y (en) * | 2003-07-10 | 2004-08-11 | 刘万国 | Joint with fillig refrigerant |
| KR20090036305A (en) * | 2007-10-09 | 2009-04-14 | (주)피티씨 | Stopcork for refrigerant tank in chiller apparatus |
| CN102155826A (en) * | 2010-12-15 | 2011-08-17 | 赵敏 | One-way movable throttle valve and air-conditioning outdoor unit using same |
| CN202066264U (en) * | 2011-04-30 | 2011-12-07 | 林勇 | One-way liquid charging pipe |
| CN203704479U (en) * | 2013-12-30 | 2014-07-09 | 西安邮电大学 | Air-conditioner refrigerant safely filling device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678442A (en) * | 2016-12-21 | 2017-05-17 | 佛山市顺德区鼎联智能科技有限公司 | Pipeline piercing valve |
| CN109028668A (en) * | 2017-06-08 | 2018-12-18 | 杭州致宏进出口有限公司 | A kind of car air conditioner refrigerant adding set |
| CN107642475A (en) * | 2017-08-08 | 2018-01-30 | 江苏昊科汽车空调有限公司 | The automobile air conditioner compressor of stabilizing energy-saving |
| CN107642475B (en) * | 2017-08-08 | 2023-08-11 | 江苏昊科汽车空调有限公司 | Stable energy-saving automobile air conditioner compressor |
| CN110398096A (en) * | 2019-08-05 | 2019-11-01 | 杭州铭铄机电科技有限公司 | A kind of air conditioner coolant filling the adjustable of machine rushes head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103743172B (en) | 2016-08-17 |
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Granted publication date: 20160817 |
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