CN109654773A - Air conditioner outdoor unit recovery system and method for preventing refrigerant leakage - Google Patents
Air conditioner outdoor unit recovery system and method for preventing refrigerant leakage Download PDFInfo
- Publication number
- CN109654773A CN109654773A CN201910116242.XA CN201910116242A CN109654773A CN 109654773 A CN109654773 A CN 109654773A CN 201910116242 A CN201910116242 A CN 201910116242A CN 109654773 A CN109654773 A CN 109654773A
- Authority
- CN
- China
- Prior art keywords
- outdoor unit
- conditioner outdoor
- air
- recovery system
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 23
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004064 recycling Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000005693 optoelectronics Effects 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/002—Collecting refrigerant from a cycle
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner outdoor unit recovery system and a method thereof for preventing refrigerant leakage, wherein the air conditioner outdoor unit recovery system comprises: the two assembling tools are used for respectively closing a small valve core and a large valve core of a stop valve of the air conditioner outdoor unit to reach corresponding preset torque in the refrigerant recovery process; the two counting modules are used for respectively receiving signals of the two assembling tools and counting the closing times of the two assembling tools; the controller compares the numerical values of the two counting modules within a certain time; and the display device displays the result after comparison by the controller. The invention can effectively avoid refrigerant leakage caused by manual operation errors in the refrigerant recovery process through a reasonable error correction interlocking mechanism.
Description
Technical field
The present invention relates to the recovery technology of air-conditioner outdoor unit more particularly to a kind of air conditioning chambers for preventing outdoor unit secondary refrigerant leakage
Outer machine recovery system and its method.
Background technique
The recycling post in air-conditioner outdoor unit commodity inspection room needs two people operation in the prior art: respectively recycling 1 and recycling 2.
Recycling 1 and recycling 2 tighten closing usually using large and small spool of the torque to shut-off valve when recycling outdoor unit refrigerant, in air-conditioning
By closing large and small spool during refrigeration, by refrigerant recovering, it is sealed in machine system.Detailed process is that recycling 1 is first closed
The small valve core for closing shut-off valve starts to recycle refrigerant, and after refrigerant all enters in outdoor unit, recycling 2 begins to shut off big valve core.
Since the large and small spool of the shut-off valve of air-conditioner outdoor unit is different, the torque of operation is different, the assembly tool of use
Concrete model is also different, and in removal process, recycling 1 and recycling 2 must be operated separately, and respectively individually completes large and small spool
Movement is fastened, causes the human factor accounting for closing cut-off valve core larger in this way, and large and small spool is located inside shut-off valve,
Whether can not judge, if there is leakage to close operation, for example, the most of refrigerants of complete machine can quilt when because of recycling when big valve core leakage is closed if fastening
It is recycled in condenser, big valve core leakage is closed, and refrigerant will not be leaked to outside complete machine, can not be found.Cause normally to be packed in storage, it is long
Time places, and refrigerant is slowly spread, and causes secondary refrigerant leakage, complete machine is without refrigerant.In the presence of complaint risk after sale.
Summary of the invention
In order to solve the skill for the secondary refrigerant leakage that manual operation may cause in air-conditioner outdoor unit removal process in the prior art
Art problem, the invention proposes the air-conditioner outdoor unit recovery systems and its method that prevent secondary refrigerant leakage.
Wherein, air-conditioner outdoor unit recovery system, comprising:
Two assembly tools, for closing the small valve core and big valve of the shut-off valve of air-conditioner outdoor unit respectively during refrigerant recovering
Core reaches corresponding default torque；
Two counting modules receive the signal of two assembly tools respectively, count to their closing number；
Controller within a certain period of time compares the numerical value of two counting modules；
Display device shows the result after controller comparison.
It preferably, further include detection device, for detecting air-conditioner outdoor unit arrival detection station and notifying the controller.
It preferably, further include manometric module, the assembly tool is when manometric module measures system pressure and drops to preset value
Begin to shut off the big valve core of shut-off valve.
In one embodiment, the detection device is optoelectronic switch.The assembly tool is with wireless communication module
Electric screwdriver or pneumatic screwdriver, the wireless communication module can be bluetooth module.The counting module is counter or counting circuit.
The display device is touch screen and/or polychromatic light.
Preferably, the assembly tool retransmits signal to the count module after the torque of its operation reaches default torque
Block.
The invention also provides the sides that the air-conditioner outdoor unit recovery system described in by adopting the above technical scheme is recycled
Method specifically includes step:
Detect that air-conditioner outdoor unit reaches detection station；
The small valve core for closing the air conditioner outdoor unit stop valve starts to recycle refrigerant, when to reach its right for the torque for closing small valve core
When the default torque answered, small valve core closing motion number adds 1；
When the system pressure of the air-conditioner outdoor unit drops to preset value, the big valve core of the air conditioner outdoor unit stop valve is closed,
When the torque for closing big valve core reaches its corresponding default torque, big valve core closing motion number adds 1；
Whether the large and small spool closing number for comparing current statistic within a certain period of time is equal, and is prompted accordingly；
Circulation above-mentioned steps are until all air-conditioner outdoor unit recycling finish.
Assembly tool of the present invention has mistake proofing mechanism, not only needs assembly tool to close to default torque, prevents
It does not only fasten, and closing motion can also be counted, the closing number of two assembly tools is counted by PLC to prevent
Phenomenon is closed in leakage.The present invention, which avoids artificial judgment mistake by being equipped with corresponding mistake proofing mechanism, to be caused complete machine spool not close, is cold
The hidden danger of quality such as matchmaker's leakage.
Detailed description of the invention
Below with reference to embodiment and attached drawing, the present invention is described in detail, in which:
Fig. 1 is the structural block diagram of one embodiment of the invention.
Fig. 2 is the flow chart of one embodiment of the invention.
Specific embodiment
The principle and embodiment that the invention will now be described in detail with reference to the accompanying drawings.
As shown in Figure 1 and Figure 2, in a preferred embodiment, air-conditioner outdoor unit recovery system of the invention includes assembler
Tool, counting module, controller, detection device, manometric module and display device.
When air-conditioner outdoor unit reaches detection station, detection device detects the arrival of air-conditioner outdoor unit, can be given to it
The corresponding signal of his component, allows other component to begin preparing work, specifically, optoelectronic switch can be used, which is opened
Pass can connect controller, when air-conditioner outdoor unit in place, optoelectronic switch sends a signal to controller, while post is recycling 1
Worker can begin to shut off the small valve core of air-conditioner outdoor unit.
The assembly tool for closing small valve core has bluetooth module, can be electric screwdriver and is also possible to pneumatic screwdriver, assembly tool is closing
During closing small valve core, the torque that it is operated can be detected, therefore, to assure that it is corresponding pre- that its torque operated reaches its
If torque, guarantee that small valve core is fastened.Bluetooth module will send a signal to counting module and once be counted.It is more excellent at one
In embodiment, after the torque operated by assembly tool reaches its corresponding default torque, bluetooth module retransmits signal, at this time
Count is incremented for corresponding counting module, in this way can be to avoid not tightening and leak pass caused by artificial maloperation according to the rules.
It closes after small valve core, air-conditioning continues to freeze, and then refrigerant slowly flows back to air-conditioner outdoor unit, by detection station
Manometric module carry out detection system pressure, when system pressure has dropped to preset value, at this time post be recycle 2 worker can open
Beginning closes the big valve core of shut-off valve, likewise, the assembly tool of closing big valve core is with bluetooth module, can be electric screwdriver can also
To be pneumatic screwdriver, this assembly tool its torque operated when closing big valve core is also required to reach its corresponding default torque, with
Big valve core can be fastened, corresponding counting module can be also sent a signal to and be counted, is most preferably to reach corresponding default
Corresponding counting module is sent a signal to after torque to be counted.
For controller the present embodiment using PLC, PLC receives two count modules being spaced a period of time (such as 40s)
After the counting of block, the numerical value counted to two counting modules is compared, if numerical value is identical, illustrates that this operation does not have
Leakage is closed, rear indicator will show it is corresponding as a result, for example, the number specifically counted by touch screen come display counting module
Value etc., can also on this basis or directly be changed to show by a tri coloured lantern connected to the controller, when one section
When interior count results are identical, green light is shown；When count results difference in a period of time, shows red light and alarm and stop line, with
Just worker can search failure, perform corresponding processing.
Counting module in specific implementation, can be counted using counting module built-in in counter or PLC,
It is also possible to technology modules built-in in assembly tool to count.Assembly tool can also be equipped with it in addition to being equipped with bluetooth module
His wireless communication module, such as bluetooth module is replaced with into infrared transmission module etc..
There can be corresponding mechanism for correcting errors with more air-conditioner outdoor units of circulation and stress, whole process by the system, avoid
Pass problem is not fastened or leaked to human factor bring.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of air-conditioner outdoor unit recovery system characterized by comprising
Two assembly tools, for closing the small valve core and big valve of the shut-off valve of air-conditioner outdoor unit respectively during refrigerant recovering
Core reaches corresponding default torque；
Two counting modules receive the signal of two assembly tools respectively, count to their closing number；
Controller within a certain period of time compares the numerical value of two counting modules；
Display device shows the result after controller comparison.
2. air-conditioner outdoor unit recovery system as described in claim 1, which is characterized in that further include detection device, for detecting
Air-conditioner outdoor unit reaches detection station and notifies the controller.
3. air-conditioner outdoor unit recovery system as claimed in claim 2, which is characterized in that the detection device is optoelectronic switch.
4. air-conditioner outdoor unit recovery system as described in claim 1, which is characterized in that the assembly tool is with channel radio
Interrogate the electric screwdriver or pneumatic screwdriver of module.
5. air-conditioner outdoor unit recovery system as claimed in claim 4, which is characterized in that the wireless communication module is bluetooth mould
Block.
6. air-conditioner outdoor unit recovery system as described in claim 1, which is characterized in that power of the assembly tool in its operation
Square retransmits signal to the counting module after reaching default torque.
7. air-conditioner outdoor unit recovery system as described in claim 1, which is characterized in that the counting module be counter or
Counting circuit.
8. air-conditioner outdoor unit recovery system as described in claim 1, which is characterized in that the display device be touch screen and/
Or polychromatic light.
9. air-conditioner outdoor unit recovery system as described in claim 1, which is characterized in that it further include manometric module, the assembly
Tool measures the big valve core that shut-off valve is begun to shut off when system pressure drops to preset value in manometric module.
10. the method recycled using air-conditioner outdoor unit recovery system as claimed in any one of claims 1 to 9, including
Step:
Detect that air-conditioner outdoor unit reaches detection station；
The small valve core for closing the air conditioner outdoor unit stop valve starts to recycle refrigerant, when to reach its right for the torque for closing small valve core
When the default torque answered, small valve core closing motion number adds 1；
When the system pressure of the air-conditioner outdoor unit drops to preset value, the big valve core of the air conditioner outdoor unit stop valve is closed,
When the torque for closing big valve core reaches its corresponding default torque, big valve core closing motion number adds 1；
Whether the large and small spool closing number for comparing current statistic within a certain period of time is equal, and is prompted accordingly；
Circulation above-mentioned steps are until all air-conditioner outdoor unit recycling finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116242.XA CN109654773A (en) | 2019-02-13 | 2019-02-13 | Air conditioner outdoor unit recovery system and method for preventing refrigerant leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116242.XA CN109654773A (en) | 2019-02-13 | 2019-02-13 | Air conditioner outdoor unit recovery system and method for preventing refrigerant leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109654773A true CN109654773A (en) | 2019-04-19 |
Family
ID=66122493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910116242.XA Pending CN109654773A (en) | 2019-02-13 | 2019-02-13 | Air conditioner outdoor unit recovery system and method for preventing refrigerant leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109654773A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917244A (en) * | 2018-09-10 | 2018-11-30 | 天津渤海石化有限公司 | Propylene recovery unit and propylene recovery method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381996A (en) * | 1994-03-07 | 1995-01-17 | The E. H. Wachs Company | Valve operator |
| JP2004257420A (en) * | 2003-02-24 | 2004-09-16 | Seibu Electric & Mach Co Ltd | Intelligent type valve actuator |
| CN1848005A (en) * | 2005-12-09 | 2006-10-18 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Gas path controlling method for chip etching equipment |
| CN201394810Y (en) * | 2009-04-02 | 2010-02-03 | 启赛电子(北京)有限公司 | Device for intelligently controlling leak prevention of screw assembly |
| CN102818406A (en) * | 2012-08-21 | 2012-12-12 | 广东美的电器股份有限公司 | Refrigerant recovery device and method of heat pump of air-conditioner and outdoor unit of air-conditioner |
| CN103775731A (en) * | 2012-10-19 | 2014-05-07 | 上海蓝帕控制阀门有限公司 | Limit switch |
| CN209512345U (en) * | 2019-02-13 | 2019-10-18 | 格力电器（合肥）有限公司 | Air conditioner outdoor unit recovery system for preventing refrigerant leakage |
-
2019
- 2019-02-13 CN CN201910116242.XA patent/CN109654773A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5381996A (en) * | 1994-03-07 | 1995-01-17 | The E. H. Wachs Company | Valve operator |
| JP2004257420A (en) * | 2003-02-24 | 2004-09-16 | Seibu Electric & Mach Co Ltd | Intelligent type valve actuator |
| CN1848005A (en) * | 2005-12-09 | 2006-10-18 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Gas path controlling method for chip etching equipment |
| CN201394810Y (en) * | 2009-04-02 | 2010-02-03 | 启赛电子(北京)有限公司 | Device for intelligently controlling leak prevention of screw assembly |
| CN102818406A (en) * | 2012-08-21 | 2012-12-12 | 广东美的电器股份有限公司 | Refrigerant recovery device and method of heat pump of air-conditioner and outdoor unit of air-conditioner |
| CN103775731A (en) * | 2012-10-19 | 2014-05-07 | 上海蓝帕控制阀门有限公司 | Limit switch |
| CN209512345U (en) * | 2019-02-13 | 2019-10-18 | 格力电器（合肥）有限公司 | Air conditioner outdoor unit recovery system for preventing refrigerant leakage |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917244A (en) * | 2018-09-10 | 2018-11-30 | 天津渤海石化有限公司 | Propylene recovery unit and propylene recovery method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |
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| RJ01 | Rejection of invention patent application after publication |