CN102798504B - Leakage detector - Google Patents
Leakage detector Download PDFInfo
- Publication number
- CN102798504B CN102798504B CN201210300518.8A CN201210300518A CN102798504B CN 102798504 B CN102798504 B CN 102798504B CN 201210300518 A CN201210300518 A CN 201210300518A CN 102798504 B CN102798504 B CN 102798504B
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- CN
- China
- Prior art keywords
- gas
- combustion gas
- parts
- case
- water tank
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- 239000007789 gas Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000567 combustion gas Substances 0.000 claims description 51
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 abstract description 8
- 239000002737 fuel gas Substances 0.000 abstract 10
- 238000001514 detection method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 230000001429 stepping Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
The invention discloses a leakage detector, belonging to the technical field of natural gas engine. The leakage detector comprises an encloser, wherein the encloser is internally provided with a water tank; a lifting device for the placement of a to-be-detected fuel gas part is arranged above the water tank; the encloser is also internally provided with a gas source for providing compressed gas to the to-be-detected fuel gas part; the encloser is provided with an opening allowing the fuel gas part to come in and go out; a safety door is arranged at the opening; and the encloser is also provided with a view window for viewing the fuel gas part in the water tank. After such the structure is adopted, the to-be-detected fuel gas part is connected with the gas source, the fuel gas part is placed on the lifting device, and the lifting device is responsible for placing the fuel gas part into the water in the water tank, so that the gas source supplies the gas to the to-be-detected fuel gas part to detect the gas tightness of the fuel gas part under the precondition of closing the safety door, and a detecting person can obtain the gas tightness condition of the fuel gas part safely and directly outside the encloser through a view window.
Description
Technical field
The present invention relates to natural gas engine checkout equipment, relate in particular to a kind of bubble-tight leak detector of combustion gas parts that detects natural gas engine.
Background technology
Natural gas engine requires very high to the impermeability of combustion gas parts, the impermeability of the combustion gas parts to natural gas engine detection is at present to detect in the time of the appearance test of complete machine, can cause like this detecting and there is no specific aim, testing result is accurate not, as one of them combustion gas parts injection valve of natural gas engine has at most 12 nozzles, which nozzle gas leakage while detection by the appearance test of complete machine, cannot detect is at all, if being tested with the combustion gas parts of gas leakage also needs complete machine dismounting to come, the combustion gas parts of gas leakage are processed, very trouble, and carry out appearance when test of complete machine, if some combustion gas parts hourglass gas, will there is at the trial larger potential safety hazard.
Summary of the invention
Technical matters to be solved by this invention is: a kind of leak detector is provided, and whether the combustion gas parts that it can independently detect natural gas engine leak gas.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of leak detector, comprise case, in described case, water tank is installed, the top of described water tank is provided with the jacking gear of laying combustion gas parts to be measured, in described case, be also provided with the source of the gas that pressure gas is provided for described combustion gas parts to be measured, described case is provided with the opening for described combustion gas parts turnover, described opening part is provided with safety door, on described case, be also provided with the view window of observing combustion gas parts in described water tank, for safety, described view window adopts explosion-proof view window conventionally.
Improve as one, described jacking gear comprises places the fixed part of combustion gas parts to be measured and the drive unit that drives described fixed part vertically to move.
Improve as one, described drive unit comprises lift cylinder, and described lift cylinder connects described source of the gas.
Improve as one, described safety door is sliding gate, described case is provided with the gas cylinder of door lock in closed condition locked secure door at safety door, and described gas cylinder of door lock connects described source of the gas, is in series with the operation valve of controlling described gas cylinder of door lock between described source of the gas and described gas cylinder of door lock.
Improve as one, described operation valve is solenoid valve, connect described source of the gas and be connected described operation valve with the pipeline of combustion gas parts to be measured, described solenoid valve is connected with control module, described case is provided with the position transducer of aware security door in closed condition, and described position transducer connects described control module.
Improve as one, described source of the gas comprises gas-holder, and the air intake opening of described gas-holder connects supercharger.
Improve as one, the below of described case is provided with support, and the bottom of described support is provided with lower margin.
Owing to having adopted technique scheme, when use, combustion gas parts are placed on jacking gear, then combustion gas parts to be measured are communicated with source of the gas, by in other gas outlet sealing of UUT, then by jacking gear, combustion gas parts are placed in the water in water tank, pin safety door and close opening, now can in combustion gas parts to be measured, be filled with pressure gas by source of the gas, whether the combustion gas parts that testing staff observes in water tank by view window leak gas, after detection, can cut off the air feed of source of the gas, combustion gas parts are taken out from opening, can conveniently detect the impermeability of combustion gas parts by this device, very convenient and safety, can before natural gas engine overall test, ensure the impermeability of each combustion gas parts, prevent from occurring at the trial potential safety hazard, some detecting steps of the delivery test of complete machine are saved, and the result that uses this device to detect is comparatively meticulous, the particular location of judgement combustion gas parts gas leakage that can be comparatively concrete, convenient for maintaining, for example, detect injection valve certain nozzle gas leakage wherein, only need to change corresponding nozzle, needn't change whole injection valve, thereby cost-saving.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structure cut-open view of the embodiment of the present invention;
Fig. 2 is that cut-open view is looked on a left side of Fig. 1;
Fig. 3 is the structural representation of jacking gear;
In figure: 1, case; 2, gas cylinder of door lock; 3, lift cylinder; 4, guide pole; 5, bearing; 51, sliding sleeve; 6, combustion gas parts; 7, installing plate; 8, water tank; 9, support; 10, lower margin; 11, gas-holder; 12, view window; 13, safety door; 14, opening; 15, angle sheave; 16, guide rail.
Embodiment
As depicted in figs. 1 and 2, a kind of leak detector, comprise case 1, the below of described case 1 is provided with support 9, the bottom of described support 9 is provided with lower margin 10, in described case 1, water tank 8 is installed, described water tank 8 adopts transparent material to make conventionally, the top of described water tank 8 is provided with the jacking gear of laying combustion gas parts 6 to be measured, in described case 1, be also provided with the source of the gas that pressure gas is provided for described combustion gas parts 6 to be measured, described case 1 is provided with the opening 14 passing in and out for described combustion gas parts 6, described opening 14 places are provided with safety door 13, on described case 1, be also provided with the view window 12 of observing the interior combustion gas parts 6 of described water tank 8, in order to protect observer's safety, described view window 12 adopts explosion-proof view window 12 conventionally, described opening 14 is positioned at the front of described case 1, described water tank 8 is positioned at the inboard of case 1 with respect to opening 14, described view window 12 has two, a view window 12 is positioned on safety door 13, another view window 12 is positioned at the side of described case 1, described safety door 13 is sliding gate, the door-plate above and below of described safety door 13 is equipped with angle sheave 15, described case 1 is provided with the guide rail 16 matching with described angle sheave 15, described case 1 is provided with the gas cylinder of door lock 2 in closed condition locked secure door 13 at safety door 13, described gas cylinder of door lock 2 connects described source of the gas, between described source of the gas and described gas cylinder of door lock 2, be in series with the operation valve of controlling described gas cylinder of door lock 2,
Described jacking gear comprises places the fixed part of combustion gas parts 6 to be measured and the drive unit that drives described fixed part vertically to move, described drive unit is lift cylinder 3, described lift cylinder 3 connects described source of the gas, described cylinder is installed on bearing 5, described bearing 5 is fixed in case 1, described bearing 5 is provided with sliding sleeve 51, described fixed part comprises places the installing plate 7 of combustion gas parts 6 and for stepping up the clamp system of combustion gas parts 6, described installing plate 7 is fixedly connected with two guide poles 4, described guide pole 4 is slidably mounted in described sliding sleeve 51, in order to improve detection efficiency, the combustion gas parts that can place on installing plate more than 2 or 2 detect simultaneously,
Described source of the gas comprises gas-holder 11, the air intake opening of described gas-holder 11 connects supercharger, owing to safety door 13 not being pinned under the state that opening 14 is sealed, directly be filled with pressure gas to combustion gas parts 6 to be measured and have potential safety hazard, therefore can arrange to the air feed relation between gas cylinder of door lock 2 and combustion gas parts 6 air feed to be measured interrelated, described operation valve is solenoid valve, connect described source of the gas and be connected described operation valve with the pipeline of combustion gas parts 6 to be measured, when operation valve is opened, pressure gas is simultaneously to combustion gas parts 6 and gas cylinder of door lock 2 air feed, described solenoid valve is connected with control module, described case 1 is provided with the position transducer of aware security door 13 in closed condition, described position transducer connects described control module, only at position sensor senses safety door 13 during in closed condition, control module just allows operation valve to open, in the time that safety door 13 is not closed, operation valve can not be opened, the control of described lift cylinder 3 also can be by described control module control, make whole device easy to use.
When use, first want ready work, comprise that by packing appropriate water in water tank 8 into, regulating lower margin 10 to make support 9 steadily and open supercharger be the pressurized air that gas-holder 11 is filled with convenient pressure, above-mentioned preliminary work is carried out and can be detected combustion gas parts 6, comprises the following steps:
(1) combustion gas parts 6 to be measured are installed to and are placed on installing plate 7, by stepping up mechanism by fixing combustion gas parts 6, now installing plate 7 positions are above water tank 8;
(2) air intake opening of combustion gas parts 6 to be measured is connected with gas-holder 11, other gas outlet seals by screw plug;
(3) closed safe door 13, seals opening 14;
(4) gas-holder 11 enters in water tank 8 combustion gas parts 6 for lift cylinder 3 air feed;
(5) open operation valve, make gas-holder 11 for gas cylinder of door lock 2 air feed closed safe doors 13, for combustion gas parts 6 air feed to be measured detect impermeability;
(6) whether testing staff observes combustion gas parts 6 by view window 12 and leaks gas;
(7) detect completely, gas-holder 11 stops air feed, is combustion gas parts 6, lift cylinder 3 and gas cylinder of door lock 2 pressure releases by corresponding pipeline, makes the pressure of their inside recover normal atmosphere (An), and gas cylinder of door lock 2 and lift cylinder 3 reset;
(8) open safety door 13, take out combustion gas parts 6.
Claims (3)
1. leak detector, it is characterized in that: comprise case, in described case, water tank is installed, the top of described water tank is provided with the jacking gear of laying combustion gas parts to be measured, described jacking gear comprises places the fixed part of combustion gas parts to be measured and the drive unit that drives described fixed part vertically to move, in described case, be also provided with the source of the gas that pressure gas is provided for described combustion gas parts to be measured, described drive unit comprises lift cylinder, described lift cylinder connects described source of the gas, described case is provided with the opening for described combustion gas parts turnover, described opening part is provided with safety door, on described case, be also provided with the view window of observing combustion gas parts in described water tank, described safety door is sliding gate, described case is provided with the gas cylinder of door lock in closed condition locked secure door at safety door, described gas cylinder of door lock connects described source of the gas, between described source of the gas and described gas cylinder of door lock, be in series with the operation valve of controlling described gas cylinder of door lock, described operation valve is solenoid valve, connect described source of the gas and be connected described operation valve with the pipeline of combustion gas parts to be measured, described solenoid valve is connected with control module, described case is provided with the position transducer of aware security door in closed condition, described position transducer connects described control module.
2. the leak detector as described in claim 1 any one, is characterized in that: described source of the gas comprises gas-holder, and the air intake opening of described gas-holder connects supercharger.
3. leak detector claimed in claim 1, is characterized in that: the below of described case is provided with support, and the bottom of described support is provided with lower margin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210300518.8A CN102798504B (en) | 2012-08-22 | 2012-08-22 | Leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210300518.8A CN102798504B (en) | 2012-08-22 | 2012-08-22 | Leakage detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102798504A CN102798504A (en) | 2012-11-28 |
| CN102798504B true CN102798504B (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210300518.8A Active CN102798504B (en) | 2012-08-22 | 2012-08-22 | Leakage detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN102798504B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389193A (en) * | 2013-07-29 | 2013-11-13 | 天津俞昌科技有限公司 | Detecting system and method of leakage of gas cylinder |
| CN104748919A (en) * | 2013-12-25 | 2015-07-01 | 格力电器（武汉）有限公司 | Leak detection device and leak detection method |
| CN104089748B (en) * | 2014-07-31 | 2018-01-23 | 上海远梓电子科技有限公司 | A kind of air-brake coupling hose air pressure level pressure detects testing machine |
| CN105806634B (en) * | 2016-05-17 | 2018-11-16 | 昆山六丰机械工业有限公司 | A kind of weight box installing mechanism of hub leak tester |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854564Y (en) * | 2005-12-23 | 2007-01-03 | 重庆宗申技术开发研究有限公司 | Pressure testing device for vehicle air intake pipe |
| CN101446511A (en) * | 2008-12-04 | 2009-06-03 | 柳州五菱汽车工业有限公司 | Test machine for detecting gas tightness of engine oil pan |
| CN201348555Y (en) * | 2008-12-23 | 2009-11-18 | 中国包装科研测试中心 | Aerosol tank sealed tester |
| CN201348554Y (en) * | 2009-01-20 | 2009-11-18 | 东莞市骏朗自动化科技有限公司 | Air pressure water filling device for water tank |
| CN101696899A (en) * | 2009-11-09 | 2010-04-21 | 卧龙电气集团股份有限公司 | Maintenance-free detection device and method thereof of air tightness of small cell cover |
| CN202735043U (en) * | 2012-08-22 | 2013-02-13 | 潍柴动力西港新能源发动机有限公司 | Leak detector |
-
2012
- 2012-08-22 CN CN201210300518.8A patent/CN102798504B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2854564Y (en) * | 2005-12-23 | 2007-01-03 | 重庆宗申技术开发研究有限公司 | Pressure testing device for vehicle air intake pipe |
| CN101446511A (en) * | 2008-12-04 | 2009-06-03 | 柳州五菱汽车工业有限公司 | Test machine for detecting gas tightness of engine oil pan |
| CN201348555Y (en) * | 2008-12-23 | 2009-11-18 | 中国包装科研测试中心 | Aerosol tank sealed tester |
| CN201348554Y (en) * | 2009-01-20 | 2009-11-18 | 东莞市骏朗自动化科技有限公司 | Air pressure water filling device for water tank |
| CN101696899A (en) * | 2009-11-09 | 2010-04-21 | 卧龙电气集团股份有限公司 | Maintenance-free detection device and method thereof of air tightness of small cell cover |
| CN202735043U (en) * | 2012-08-22 | 2013-02-13 | 潍柴动力西港新能源发动机有限公司 | Leak detector |
Also Published As
| Publication number | Publication date |
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| CN102798504A (en) | 2012-11-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 198 Applicant after: WEICHAI XIGANG NEW ENERGY POWER CO., LTD. Address before: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197 Applicant before: Weichai Power Xigang New Energy Engine Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: WEICHAI POWER SIGNATURE NEW ENERGY ENGINE CO., LTD. TO: WEICHAI XIGANG NEW ENERGY POWER CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |