CN102636315B - Helium-filling vacuum leakage detection system for outdoor unit of air conditioner - Google Patents
Helium-filling vacuum leakage detection system for outdoor unit of air conditioner Download PDFInfo
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- CN102636315B CN102636315B CN201210118879.0A CN201210118879A CN102636315B CN 102636315 B CN102636315 B CN 102636315B CN 201210118879 A CN201210118879 A CN 201210118879A CN 102636315 B CN102636315 B CN 102636315B
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Abstract
The invention relates to a helium-filling vacuum leakage detection system for an outdoor unit of an air conditioner. The helium-filling vacuum leakage detection system comprises a tooling plate, vacuum boxes, a pre-pumping pump group, a main-pumping pump group, a leakage detection pump group, a leakage detector, helium removing valves, gas discharging valves and leakage detection valves; an input passage consisting of shifters and multi-speed chain conveying belts is arranged at the entrances of the vacuum boxes; an output passage consisting of shifters and multi-speed chain conveying belts is arranged at the exits of the vacuum boxes; the tooling plate is arranged on the input passage and can reach the output passage by passing through the vacuum boxes along the input passage; rolling shafts connected with the input passage are arranged on the bottom faces of the cavity bodies of the vacuum boxes; the cavity bodies of the vacuum boxes are connected with the pre-pumping pump group through pre-pumping valves and are connected with the main-pumping pump group through main-pumping valves; the cavity bodies of the vacuum boxes are further connected with the leakage detector through the leakage detection valves; the cavity bodies of the vacuum boxes are further connected with a gas discharging pipeline, and the gas discharging valves are arranged on the gas discharging pipeline; the cavity bodies of the vacuum boxes are connected with a nitrogen pipeline, and the helium removing valves are arranged on the nitrogen pipeline; and the leakage detector is connected with an alarming device. The helium-filling vacuum leakage detection system for the outdoor unit of the air conditioner has the advantage of ensuring the overall quality of the air conditioner.
Description
Technical field
The present invention relates to air-conditioner outdoor unit and fill helium technical field, particularly relate to a kind of air-conditioner outdoor unit and fill helium vacuum leak detecting system.
Background technology
Outdoor machine of air conditioner mainly contains the parts compositions such as condenser, compressor, two four-way copper pipe parts, Denso control, fan, motor, when condenser, compressor, two four-way copper pipe parts etc. are welded into after the complete circulation system at production line, must carry out Leak Detection to it, to guarantee the quality of air-conditioning.In most air-conditioning production firm, the complete machine of air conditioner circulation system being detected at present, is the technology mode that adopts manual inspection, is that up to a hundred solder joints carry out detection one by one with helium mass spectrometer leak detector to tens, and not only production efficiency is low, and loss is high.Helium inspection under vacuum state, also just carries out single detection for larger components such as condensers, cannot guarantee the quality of complete machine.Therefore in prior art, there is following problem: (1) adopts the technology mode of manual inspection, and labour intensity is large, and production efficiency is low; (2) technology mode of employing manual inspection, loss is high, and the quality rate of complete machine is low; (3) underproof air conditioner can only manually be distinguished and be sorted.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of air-conditioner outdoor unit and fills helium vacuum leak detecting system, can guarantee air conditioner quality.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of air-conditioner outdoor unit to fill helium vacuum leak detecting system, comprise working plate, vacuum tank, forepump group, main pump group, leak detection pump group, leak locator, clear helium valve, air release and the leak detector valve taken out, described vacuum tank entrance is provided with the input channel being made up of divide a word with a hyphen at the end of a line device and double-speed chain travelling belt, and outlet is provided with the output channel being made up of divide a word with a hyphen at the end of a line device and double-speed chain travelling belt; Described working plate is arranged in input channel, and can arrive described output channel through vacuum tank along input channel; The cavity of described vacuum tank is connected with forepump group by taking out in advance valve, takes out valve take out pump group and be connected with main by master; The cavity of described vacuum tank is also connected with leak locator by leak detector valve; The cavity of described vacuum tank is also connected with atmospheric pipe, and described atmospheric pipe is provided with air release; The cavity of described vacuum tank is connected with nitrogen pipeline, and described nitrogen pipeline is provided with described clear helium valve; Described leak locator is connected with warning device.
Described input channel one side is provided with and vacuumizes station; The described station that vacuumizes is provided with interconnective evacuator and the first rapid-acting coupling.
Described input channel one side is also provided with helium filling station; Described helium filling station is provided with interconnective automatic helium charging unit and the second rapid-acting coupling.
In described vacuum tank, be provided with the first optoelectronic switch whether putting in place for detection of complete machine; The bottom surface of the cavity of described vacuum tank is provided with respectively the axis of rolling joining with input channel and output channel.
Described working plate is provided with turnover panel recognition device; Described turnover panel recognition device comprises drop in leaf, base plate and flexible clamp piece, and described base plate is arranged on described working plate by register pin, and described base plate is connected with turnover panel by rotating shaft, between described turnover panel and base plate, is provided with flexible clamp piece; Described output channel is provided with bad complete machine identification control device, and described bad complete machine identification control device receives the signal of described leak locator; Described bad complete machine identification control device comprises turnover panel cylinder, makes bar and the second optoelectronic switch; Described turnover panel cylinder is connected with the described bar of beating by rotating shaft, and the described bar of beating is for hitting the turnover panel on described turnover panel recognition device down; Whether described the second optoelectronic switch puts in place for detection of described working plate.
Described output channel rear end is provided with bad complete machine sorting equipment; Described bad complete machine sorting equipment comprises support, the 3rd optoelectronic switch and electrode, and described support is fixed on output channel rear end, and described the 3rd optoelectronic switch and electrode are installed on described support; Whether described the 3rd optoelectronic switch puts in place for detection of described working plate; Whether described electrode is hit down for detection of the turnover panel on described turnover panel recognition device.
Described vacuum tank is four.
Described input channel is provided with approach switch; Described approach switch is the distance apart from vacuum tank for detection of working plate, and described approach switch detects when working plate approaches and send signal, and the device of dividing a word with a hyphen at the end of a line of described input channel is sent into described working plate in empty vacuum tank.
Beneficial effect
Owing to having adopted above-mentioned technical scheme, the present invention compared with prior art, there is following advantage and good effect: the present invention has realized complete machine automatic leak detection technique, improve greatly production efficiency, the present invention has also realized the automatic helium inspection of complete machine under vacuum state, reduce loss, improved the quality of complete machine.The present invention carries out automatic alarm and sorting to underproof air conditioner, has realized robotization, Flexible Production.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of vacuum tank in the present invention;
Fig. 3 is the structural representation of turnover panel recognition device in the present invention;
Fig. 4 is the structural representation of bad complete machine identification control device in the present invention;
Fig. 5 is bad complete machine sorting equipment in the present invention;
Fig. 6 is pneumatic diagram of the present invention.
Reference numeral in Fig. 6 is in table 1:
| Code name | Title | Code name | Title |
| PM1 | SV300 forepump 1 | VZ1C | C case is taken out valve in advance |
| PM2 | SV300 forepump 2 | VZ2C | C case master takes out valve |
| PM3 | SV300 forepump 3 | VZ3C | C case leak detector valve |
| PM4 | SV300 forepump 4 | VZ4C | C case air release |
| PM5 | SV300 master takes out pump 1 | VN1C | The clear helium valve of C case |
| PM6 | WAU2001 master takes out sieve time pump 2 | VZ1D | D case is taken out valve in advance |
| PM7 | D60C leak detection pump | VZ2D | D case master takes out valve |
| PM8 | WAU501 leak detection pump | VZ3D | D case leak detector valve |
| PM9 | WAU501 leak locator pump | VZ4D | D case air release |
| VZ1A | A case is taken out valve in advance | VN1D | The clear helium valve of D case |
| VZ2A | A case master takes out valve | VZ2 | Public evacuation valve |
| VZ3A | A case leak detector valve | VZ3 | Public leak detector valve |
| VZ4A | A case air release | VN1 | Public clear helium valve |
| VN1A | The clear helium valve of A case | PLN1 | A case Pirani ga(u)ge |
| VZ1B | B case is taken out valve in advance | PLN2 | B case Pirani ga(u)ge |
| VZ2B | B case master takes out valve | PLN3 | C case Pirani ga(u)ge |
| VZ3B | B case leak detector valve | PLN4 | D case Pirani ga(u)ge |
| VZ4B | B case air release | Helium leak detector | LDS2010 leak locator |
| VN1B | The clear helium valve of B case | ? | ? |
Table 1
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
The present invention relates to a kind of air-conditioner outdoor unit and fill helium vacuum leak detecting system, as shown in Figure 1, comprise working plate 3, vacuum tank 1, forepump group, main pump group, leak detection pump group, leak locator 2, clear helium valve, air release and the leak detector valve taken out for placing air conditioner, on described working plate 3, air conditioner is installed, described vacuum tank 1 entrance is provided with the input channel 4 being made up of divide a word with a hyphen at the end of a line device 6 and double-speed chain travelling belt 7, and outlet is provided with the output channel 5 being made up of divide a word with a hyphen at the end of a line device 6 and double-speed chain travelling belt 7; Described working plate 3 is arranged in input channel 4, and can arrive described output channel 5 through vacuum tank 1 along input channel 4; The cavity of described vacuum tank 1 is connected with forepump group by taking out in advance valve, takes out valve take out pump group and be connected with main by master; The cavity of described vacuum tank 1 is also connected with leak locator 2 by leak detector valve; The cavity of described vacuum tank 1 is also connected with atmospheric pipe, and described atmospheric pipe is provided with air release; The cavity of described vacuum tank 1 is connected with nitrogen pipeline, and described nitrogen pipeline is provided with described clear helium valve; Described leak locator 2 is connected with warning device 14.Described input channel 4 one sides are provided with and vacuumize station; The described station that vacuumizes is provided with interconnective evacuator 8 and the first rapid-acting coupling.Described input channel 4 one sides are also provided with helium filling station; Described helium filling station is provided with interconnective automatic helium charging unit 9 and the second rapid-acting coupling.
Wherein, described vacuum tank 1 is four.As shown in Figure 2, in described vacuum tank 1, be provided with the first optoelectronic switch 103 whether putting in place for detection of complete machine.Convex cavity 101 for being sealed by male seal bar 104 in described vacuum tank 1, the bottom surface of described convex cavity 101 is provided with respectively the axis of rolling 102 joining with input channel 4 and output channel 5, and described working plate 3 can enter convex cavity 101 by input channel 4.The both sides of described vacuum tank 1 are equipped with guide rail 106, on described guide rail 106, vacuum chamber door 105 are installed, and described vacuum chamber door 105 is controlled by locking cylinder 107, and under the control of locking cylinder 107, described vacuum chamber door 105 can move up and down along guide rail 106.
Described working plate 3 is provided with turnover panel recognition device 10.As shown in Figure 3, described turnover panel recognition device 10 comprises drop in leaf 201, base plate 202 and flexible clamp piece 203, described base plate 202 is arranged on described working plate 3 by register pin 204, described base plate 202 is connected with drop in leaf 201 by rotating shaft 205, between described drop in leaf 201 and base plate 202, is provided with flexible clamp piece 203.Described output channel 5 is provided with bad complete machine identification control device 11.As shown in Figure 4, described bad complete machine identification control device 11 receives the signal of described leak locator 2; Described bad complete machine identification control device 11 comprises turnover panel cylinder 301, makes bar 302 and the second optoelectronic switch 303; Described turnover panel cylinder 301 is connected with the described bar 302 of beating by rotating shaft 304, and the described bar 302 of beating is for hitting the drop in leaf 201 on described turnover panel recognition device 10 down; Whether described the second optoelectronic switch 303 puts in place for detection of described working plate 3.
Described input channel 4 is provided with approach switch 13; Described approach switch 13 is the distance apart from vacuum tank 1 for detection of working plate 3, and described approach switch 13 detects that working plate 3 sends signal while approaching, and the device 6 of dividing a word with a hyphen at the end of a line of described input channel 4 is sent into described working plate 3 in empty vacuum tank 1.
Described output channel 5 rear ends are provided with bad complete machine sorting equipment 12.As shown in Figure 5, described bad complete machine sorting equipment 12 comprises support 401, the 3rd optoelectronic switch 402 and electrode 403, and described support 401 is fixed on output channel 5 rear ends, and described the 3rd optoelectronic switch 402 and electrode 403 are for being arranged on described support 401; Whether described the 3rd optoelectronic switch 402 puts in place for detection of described working plate 3; Whether described electrode 403 is hit down for detection of the turnover panel 201 on described turnover panel recognition device 10.
The present invention is under vacuum state, complete machine outside air conditioning chamber is carried out to leak hunting method and the technique of automatic helium leak test, and leakage detection apparatus.Meanwhile, complete machine outside underproof air conditioning chamber is carried out technique and the device of automatic alarm and automatic sorting.The present invention mainly comprises: vacuum extractor, automatically helium charging unit, turnover panel detect recognition device, complete machine enters an Opportunity awaiting control for linear, four casees coordinated type vacuum tanks, helium leak detector, bad complete machine warning device, bad complete machine identification control device, bad complete machine sorting equipment etc. automatically.Its production technology is as follows:
2.1 vacuumize after station when complete machine enters, and the rapid-acting coupling of evacuator is inserted on air conditioner four-way valve, and Automatic Extraction vacuum 10 seconds, prepares for filling helium.
2.2 enter after helium filling station when complete machine, and the rapid-acting coupling on automatic helium charging unit is inserted on air conditioner four-way valve, are automatically filled with helium, fill helium pressure 8～12kgf/cm
2, concentrations of helium in air conditioner is remained on more than 70%.
Turnover panel is detected recognition device by 2.3 to be inserted on working plate, digs vertical plate, the device station of dividing a word with a hyphen at the end of a line in the middle of complete machine enters, and approach switch touches turnover panel and detects recognition device and send signal, and request room enters a signal.
2.4 4 casees coordinated type vacuum tank control system, according to resource priority principle, are sent room and are treated a signal, and the device station of dividing a word with a hyphen at the end of a line, according to signal, is sent complete machine into standby station, for the inspection of vacuum helium is prepared.
The outer formula helium leak test vacuum tank leak detection system of 2.5 4 casees coordinated type casees mainly contains vacuum tank A/B/C/D tetra-casees, forepump group, mainly takes out pump group, leak detection pump group, leak locator, takes out valve, the main compositions such as valve, clear helium valve, air release and leak detector valve of taking out in advance.Four casees outer formula helium leak test vacuum tank leak detection systems of coordinated type case can be selected the working method of " single action " and " interlock ", " single action " is exactly that vacuum tank oneself carries out vacuum leak hunting circulation, " interlock " is exactly the production vacuum leak hunting that links alternately of vacuum tank and line body, system is at any time only filled and is permitted casing and take out in advance, mainly take out and hunt leak, and system accounts for resource priority principle first to rob.
Single case principle of work (taking A case as example): as shown in Figure 6, when A case sends null signals, the complete machine of the standby station device of being divided a word with a hyphen at the end of a line ejects and moves ahead, and the axis of rolling is sent in A case, in A case, optoelectronic switch is located, A case chamber door is closed, locking cylinder lock sealing, and system is opened and is taken out in advance valve VZ1A, forepump group is to casing forvacuum, in the time that casing vacuum tightness reaches 2400Pa, system closing is taken out valve VZ1A in advance, and other casings are taken out in advance.System is opened casing master again and is taken out valve VZ2A, and master takes out pump group casing is led and vacuumized, and in the time that casing vacuum tightness reaches 60Pa, system closing master takes out valve VZ2A, and other casings are led and taken out.System is opened casing leak detector valve VZ3A again, and leak locator starts complete machine (the leak detection standard: be less than 3X10 of hunting leak
-7pam
3/ s).As qualified in the inspection of complete machine vacuum helium, system is opened air release VZ4A venting, the complete chamber door of opening of exitting, complete machine is sent to casing, to double-speed chain travelling belt, system is sent the qualified signal of complete machine to bad complete machine identification control device, and leak locator starts other casings to hunt leak.As defective in the inspection of complete machine vacuum helium, system alarm lamp is reported to the police and is stopped leak detection, open helium valve VN1A and public clear helium valve VN1 clearly pipeline is rushed to nitrogen purge, simultaneity factor is opened air release VZ4A venting, the complete chamber door of opening of exitting, complete machine is delivered to double-speed chain travelling belt defective products identification control device station, and system is sent defective signal to bad complete machine identification control device.
2.6 bad complete machine identification control devices are received the signal that leak detection system sends, qualified signal in this way, and the cylinder on identification control device will not move, and complete machine is sent into production main line.Defective signal in this way, cylinder on identification control device starts to-and-fro movement, the vertical plate that turnover panel on working plate is detected to recognition device is hit down, complete machine working plate continues to proceed to bad complete machine sortation process, bad complete machine sorting equipment is not received vertical plate signal, be judged as defective complete machine, defective complete machine is sent into maintenance subordinate line.
Be not difficult to find, the present invention has realized complete machine automatic leak detection technique, has improved greatly production efficiency, and the present invention has also realized the automatic helium inspection of complete machine under vacuum state, has reduced loss, improves the quality of complete machine.The present invention carries out automatic alarm and sorting to underproof air conditioner, has realized robotization, Flexible Production.
Claims (7)
1. an air-conditioner outdoor unit fills helium vacuum leak detecting system, comprise working plate (3), vacuum tank (1), forepump group, main pump group, leak detection pump group, leak locator (2), clear helium valve, air release and the leak detector valve taken out, it is characterized in that, described vacuum tank (1) entrance is provided with the input channel (4) being made up of the device of dividing a word with a hyphen at the end of a line (6) and double-speed chain travelling belt (7), and outlet is provided with the output channel (5) being made up of the device of dividing a word with a hyphen at the end of a line (6) and double-speed chain travelling belt (7), it is upper that described working plate (3) is arranged on input channel (4), and can arrive described output channel (5) through vacuum tank (1) along input channel (4), the cavity (101) of described vacuum tank (1) is connected with forepump group by taking out in advance valve, takes out valve take out pump group and be connected with main by master, the cavity (101) of described vacuum tank (1) is also connected with leak locator (2) by leak detector valve, the cavity (101) of described vacuum tank (1) is also connected with atmospheric pipe, and described atmospheric pipe is provided with air release, the cavity (101) of described vacuum tank (1) is connected with nitrogen pipeline, and described nitrogen pipeline is provided with described clear helium valve, described leak locator (2) is connected with warning device (14), described working plate (3) is provided with turnover panel recognition device (10), described turnover panel recognition device (10) comprises drop in leaf (201), base plate (202) and flexible clamp piece (203), described base plate (202) is arranged on described working plate (3) by register pin (204), described base plate (202) is connected with drop in leaf (201) by rotating shaft (205), between described drop in leaf (201) and base plate (202), is provided with flexible clamp piece (203), described output channel (5) is provided with bad complete machine identification control device (11), and described bad complete machine identification control device (11) receives the signal of described leak locator (2), described bad complete machine identification control device (11) comprises turnover panel cylinder (301), makes bar (302) and the second optoelectronic switch (303), described turnover panel cylinder (301) is connected with the described bar (302) of beating by rotating shaft (304), and the described bar (302) of beating is for hitting the drop in leaf (201) on described turnover panel recognition device (10) down, whether described the second optoelectronic switch (303) puts in place for detection of described working plate (3), described bad complete machine identification control device (11) is received when signal that leak locator (2) sends is qualified signal, turnover panel cylinder (301) on described bad complete machine identification control device (11) will not move, and described working plate (3) is sent into production main line, described bad complete machine identification control device (11) receives that the signal that leak locator (2) sends is defective signal, turnover panel cylinder (301) on described bad complete machine identification control device (11) starts to-and-fro movement, the drop in leaf (201) of the turnover panel recognition device (10) on working plate (3) is hit down, described working plate (3) continues to proceed to bad complete machine sortation process, bad complete machine sorting equipment (12) is not received the signal of drop in leaf (201), be judged as defective complete machine, defective complete machine is sent into maintenance subordinate line.
2. air-conditioner outdoor unit according to claim 1 fills helium vacuum leak detecting system, it is characterized in that, described input channel (4) one sides are provided with and vacuumize station; The described station that vacuumizes is provided with interconnective evacuator (8) and the first rapid-acting coupling.
3. air-conditioner outdoor unit according to claim 1 fills helium vacuum leak detecting system, it is characterized in that, described input channel (4) one sides are also provided with helium filling station; Described helium filling station is provided with interconnective automatic helium charging unit (9) and the second rapid-acting coupling.
4. air-conditioner outdoor unit according to claim 1 fills helium vacuum leak detecting system, it is characterized in that, is provided with the first optoelectronic switch whether putting in place for detection of complete machine in described vacuum tank (1); The bottom surface of the cavity (101) of described vacuum tank (1) is provided with respectively the axis of rolling (102) joining with input channel (4) and output channel (5).
5. air-conditioner outdoor unit according to claim 1 fills helium vacuum leak detecting system, it is characterized in that, described output channel (5) rear end is provided with bad complete machine sorting equipment (12); Described bad complete machine sorting equipment (12) comprises support (401), the 3rd optoelectronic switch (402) and electrode (403), described support (401) is fixed on output channel (5) rear end, and described the 3rd optoelectronic switch (402) and electrode (403) are installed on described support (401); Whether described the 3rd optoelectronic switch (402) puts in place for detection of described working plate (3); Whether described electrode (403) is hit down for detection of the drop in leaf (201) on described turnover panel recognition device (10).
6. fill helium vacuum leak detecting system according to the air-conditioner outdoor unit described in arbitrary claim in claim 1-5, it is characterized in that, described vacuum tank (1) is four.
7. air-conditioner outdoor unit according to claim 6 fills helium vacuum leak detecting system, it is characterized in that, described input channel (4) is provided with approach switch (13); Described approach switch (13) is the distance apart from vacuum tank (1) for detection of working plate (3), described approach switch (13) detects that working plate (3) sends signal while approaching, and the device of dividing a word with a hyphen at the end of a line (6) of described input channel (4) is sent into described working plate (3) in empty vacuum tank (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210118879.0A CN102636315B (en) | 2012-04-20 | 2012-04-20 | Helium-filling vacuum leakage detection system for outdoor unit of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210118879.0A CN102636315B (en) | 2012-04-20 | 2012-04-20 | Helium-filling vacuum leakage detection system for outdoor unit of air conditioner |
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| CN102636315A CN102636315A (en) | 2012-08-15 |
| CN102636315B true CN102636315B (en) | 2014-12-10 |
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| CN201210118879.0A Expired - Fee Related CN102636315B (en) | 2012-04-20 | 2012-04-20 | Helium-filling vacuum leakage detection system for outdoor unit of air conditioner |
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| CN104215398B (en) * | 2014-08-14 | 2017-03-01 | 合肥通用机械研究院 | Domestic air conditioning finished product automatic leak-checking device |
| CN104260941B (en) * | 2014-08-14 | 2016-04-06 | 合肥通用机械研究院 | Automatic leakage detection system for finished household air conditioner |
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| CN108760181A (en) * | 2018-06-11 | 2018-11-06 | 长沙格力暖通制冷设备有限公司 | A kind of air-conditioning helium inspection line |
| CN112764436B (en) * | 2020-12-17 | 2023-09-05 | 北京七星华创流量计有限公司 | Mass flow controller detection system |
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| CN102636315A (en) | 2012-08-15 |
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