CN106122762A - A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder - Google Patents

A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder Download PDF

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Publication number
CN106122762A
CN106122762A CN201610599576.3A CN201610599576A CN106122762A CN 106122762 A CN106122762 A CN 106122762A CN 201610599576 A CN201610599576 A CN 201610599576A CN 106122762 A CN106122762 A CN 106122762A
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CN
China
Prior art keywords
fluid pressure
detecting
pressure type
side fixed
gas cylinder
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CN201610599576.3A
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CN106122762B (en
Inventor
史志强
顾建辉
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Tianjin Liang Hua New Energy Technology Co Ltd
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Tianjin Liang Hua New Energy Technology Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/02Special adaptations of indicating, measuring, or monitoring equipment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides a kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder, belong to technical field of energy equipment, including a water tank, water tank be arranged over a support, the top of support is provided with a drive mechanism, and drive mechanism drives a fixed mechanism, fixed mechanism includes a horizontal supporting plate and a framework, horizontal supporting plate is provided with several roll shafts be arrangeding in parallel, is arranged with two side fixed arms, is provided with tension spring between two side fixed arms in framework;The outside of water tank is provided with an inflation mechanism;The outside of water tank is provided with a monitor control mechanism.The present invention is for detecting the device of fluid pressure type CNG gas cylinder gas leakage, and simple in construction, reasonable in design, easy to use, it is possible to quickly to detect result, without field observation, it is only necessary to observe over the display, safety is high.

Description

A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder
Technical field
The present invention relates to technical field of energy equipment, a kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder.
Background technology
Gas-fueled vehicles are to change the natural gas a kind of gaseous fuel automobile as fuel with oil, are called for short CNG automobile.Natural gas first Alkane content, typically more than 90%, is a kind of well automobile engine fuel.Natural gas has the advantage that as fuel (1) flameholding, will not produce pinking, and cold and hot starting is convenient;(2) compressed natural gas accumulating, decompression, burning is all strictly Sealing state under carry out, be not susceptible to reveal, additionally its gas bomb is through various special destructive testings, safe and reliable; (3) compressed natural gas combustion completion, carbon distribution is few, reduces vapour lock and pinking, is conducive to extending the service life of each parts of electromotor, Reduce maintenance number of times, maintenance cost is greatly lowered;(4) oil consumption of electromotor can be reduced;(5) pressure is used Contracting natural gas, compared with gasoline, can be greatly lowered, carbon monoxide, sulfur dioxide, the discharge of carbon dioxide etc., and does not has Benzene, lead etc. is carcinogenic and noxious substance is detrimental to health.Based on above-mentioned advantage, what some cities started popularization and application is to distinguish Use compressed natural gas or gasoline compressed natural gas-gasoline dual-purpose fuel automobile, the most also will widely popularize the single fuel sky of application So gas automobile.
Natural gas, typically at about 20MPa, can be processed by the pressure of compressed natural gas used as vehicle fuel through dehydration, desulfurizing and purifying After, preparing through multistage pressurization, state when it uses is gas.It is to use CNG gas cylinder, cylinder filling for deposit natural gas Gas once leakage people's property and life can be brought harm greatly, so China is for gas cylinder all the time Use and detection have strict requirements.Gas cylinder quality problems especially air-tightness is made that clear and definite regulation, therewith Relevant standard is: GB/T 12137-2002 " gas cylinder airtightness testing method ", gives two kinds of inspection gas cylinder gas in this standard The method of close property, masking liquid method and bowssening, masking liquid method be primarily adapted for use in inspection gas cylinder valve threaded connection place, cylinder valve valve rod at or The air-tightness of gas cylinder part, some position of tested gas cylinder being filled with authorized pressure compressed gas is coated with experimental liquid and examines by it Testing gas cylinder air-tightness, in practice examining, masking liquid method has some limitations and occasionality, and bowssening is mainly gas of substituting the bad for the good Gas cylinder immerse the bubble-tight method of gas cylinder of checking in tank, it is overall that bowssening is applicable to gas cylinder, but needs manually to be soaked by gas cylinder Enter in water, labor intensive, inefficiency.
Summary of the invention
In view of this, it is desirable to provide a kind of simple in construction, reasonable in design, easy to use, it is possible to quickly to detect As a result, without field observation, it is only necessary to observe over the display, what safety was high is used for detecting the leakage of fluid pressure type CNG gas cylinder The device of gas.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that: one is used for detecting fluid pressure type CNG gas cylinder The device of gas leakage, including a water tank, described water tank be arranged over a support, the top of described support is provided with a drive mechanism, Described drive mechanism drives a fixed mechanism, described fixed mechanism to include a horizontal supporting plate and a framework, described horizontal support Plate is provided with several roll shafts be arrangeding in parallel, is arranged with two side fixed arms in described framework, and two side fixed arms slide It is connected on framework, between two side fixed arms, is provided with tension spring;
The outside of described water tank is provided with an inflation mechanism;
The outside of described water tank is provided with a monitor control mechanism, and described monitor control mechanism includes that a photographic head, described photographic head are positioned at On water tank, described photographic head connects a controller, and described controller connects a display.
Further, described fixed mechanism also includes fixing groove, and described fixing groove is positioned at the side of framework.
Further, the inner side of described side fixed arm is provided with buffer stopper.
Further, the material of described buffer stopper is elastoplast.
Further, described drive mechanism is cylinder, and the cylinder body of described cylinder is fixed on the top of support, described cylinder Motion bar is fixed on the top of framework.
Further, described side fixed arm includes the first side fixed arm, the second side fixed arm and the 3rd side fixed arm, described First side fixed arm and the 3rd side fixed arm are arranged in parallel.
Further, described first side fixed arm is slidably connected on framework by fixed plate.
Further, the two ends of described fixed plate are equipped with a slide block.
Further, the both sides of described framework are equipped with a slide rail, and described slide block moves on slide rail.
Further, described tension spring is fixed between two fixed plates.
Relative to prior art, present invention have the advantage that
The present invention for detect fluid pressure type CNG gas cylinder gas leakage device, simple in construction, reasonable in design, easy to use, it is possible to Quickly detecting result, without field observation, it is only necessary to observe over the display, safety is high.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of two side fixed arms of the present invention.
In figure: 1, water tank;2, support;3, cylinder;4, horizontal supporting plate;5, framework;6, roll shaft;7, side fixed arm;71, Side fixed arm;72, the second side fixed arm;73, the 3rd side fixed arm;74, fixed plate;8, slide block;9, slide rail;10, pulling force bullet Spring;11, fixing groove;12, inflation mechanism;13, photographic head;14, controller;15, display.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases Combination mutually.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score, Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or hint phase To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can To express or to implicitly include one or more this feature.In describing the invention, except as otherwise noted, " multiple " It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected;Can To be mechanical connection, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition Concrete meaning in the present invention.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figure 1, 2, a kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder, including a water tank 1, water tank 1 upper Side is provided with a support 2, and the top of support 2 is provided with a cylinder 3, and cylinder 3 drives a fixed mechanism, the cylinder body of cylinder 3 to be fixed on and props up The top of frame 2, fixed mechanism includes horizontal supporting plate 4 and a framework 5, and the motion bar of cylinder 3 is fixed on the top of framework 5, Horizontal supporting plate 4 is provided with the roll shaft 6 be arrangeding in parallel, is arranged with two side fixed arms 7, the inner side of side fixed arm 7 in framework 5 Being provided with buffer stopper 8, the material of buffer stopper 8 is elastoplast, and side fixed arm 7 includes first side fixed arm the 71, second side fixed arm 72 and the 3rd side fixed arm 73, the first side fixed arm 71 and the 3rd side fixed arm 73 are arranged in parallel, the first side fixed arm 71 Being slidably connected on framework 5 by fixed plate 74, the two ends of fixed plate 74 are equipped with a slide block 8, and the both sides of framework 5 are equipped with one Slide rail 9, slide block 8 moves on slide rail 9, and tension spring 10 is fixed between two fixed plates 74, also includes fixing groove 11, Gu Determine groove 11 and be positioned at the side of framework 5;
The outside of water tank 1 is provided with an inflation mechanism 12;
The outside of water tank 1 is provided with a monitor control mechanism, and monitor control mechanism includes a photographic head 13, and photographic head 13 is positioned on water tank 1, Photographic head 13 connects a controller 14, and controller 14 connects a display 15.
The work process of the present embodiment: during use, moves CNG gas cylinder along roll shaft 6 and is placed on horizontal supporting plate 4, CNG The bottom of gas cylinder is positioned at fixing groove 11, moves two side fixed arms 7 round about, and it is solid that CNG gas cylinder is placed in two sides Between arms 7, under the effect of tension spring 10, two side fixed arm 7 move toward one another, and CNG gas cylinder is clamped, now buffer Block 8 and the sidewall contact of CNG gas cylinder, entered gas by inflation mechanism 12 by CNG gas cylinder;
Starting cylinder 3, cylinder 3 drives fixed mechanism to enter in tank 1;
The photographic head 13 of monitor control mechanism records the situation in tank 1, and transmits a signal to controller 14, and controller 14 will Signal is transferred to display 15.
The present invention for detect fluid pressure type CNG gas cylinder gas leakage device, simple in construction, reasonable in design, easy to use, it is possible to Quickly detect result, without field observation, it is only necessary to observe over the display.Safety is high.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (10)

1. one kind for detecting the device of fluid pressure type CNG gas cylinder gas leakage, it is characterised in that: include a water tank, described water tank upper Side is provided with a support, and the top of described support is provided with a drive mechanism, and described drive mechanism drives a fixed mechanism, described fixing Mechanism includes a horizontal supporting plate and a framework, and described horizontal supporting plate is provided with several roll shafts be arrangeding in parallel, described frame Being arranged with two side fixed arms in frame, two side fixed arms are slidably connected on framework, be provided with and draw between two side fixed arms Power spring;
The outside of described water tank is provided with an inflation mechanism;
The outside of described water tank is provided with a monitor control mechanism, and described monitor control mechanism includes that a photographic head, described photographic head are positioned at water tank On, described photographic head connects a controller, and described controller connects a display.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 1, it is characterised in that: described Fixed mechanism also includes that a locating slot, described fixing groove are positioned at the side of framework.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 1, it is characterised in that: described The inner side of side fixed arm is provided with buffer stopper.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 3, it is characterised in that: described The material of buffer stopper is elastoplast.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 1, it is characterised in that: described Drive mechanism is cylinder, and the cylinder body of described cylinder is fixed on the top of support, and the motion bar of described cylinder is fixed on the top of framework Portion.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 1, it is characterised in that: described Side fixed arm includes the first side fixed arm, the second side fixed arm and the 3rd side fixed arm, described first side fixed arm and the 3rd side Fixed arm is arranged in parallel.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 6, it is characterised in that: described First side fixed arm is slidably connected on framework by fixed plate.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 7, it is characterised in that: described The two ends of fixed plate are equipped with a slide block.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 8, it is characterised in that: described The both sides of framework are equipped with a slide rail, and described slide block moves on slide rail.
A kind of device for detecting the gas leakage of fluid pressure type CNG gas cylinder the most according to claim 9, it is characterised in that: described Tension spring is fixed between two fixed plates.
CN201610599576.3A 2016-07-22 2016-07-22 Device for detecting air leakage of hydraulic CNG (compressed natural gas) cylinder Active CN106122762B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610599576.3A CN106122762B (en) 2016-07-22 2016-07-22 Device for detecting air leakage of hydraulic CNG (compressed natural gas) cylinder

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Application Number Priority Date Filing Date Title
CN201610599576.3A CN106122762B (en) 2016-07-22 2016-07-22 Device for detecting air leakage of hydraulic CNG (compressed natural gas) cylinder

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108146234A (en) * 2017-12-28 2018-06-12 天津良华新能源科技有限公司 Fluid pressure type CNG gas-cylinder retaining assemblies
CN112729709A (en) * 2020-12-21 2021-04-30 湖南富佳钢瓶制造有限公司 Liquefied gas cylinder airtightness detection device and detection method thereof
CN113203042A (en) * 2021-04-01 2021-08-03 无锡恒大电子科技有限公司 Full-automatic special gas delivery cabinet leakage detection device
CN114593359A (en) * 2022-03-23 2022-06-07 嘉兴亚航信息技术有限公司 Safety prevention monitoring system for gas cylinder filling station

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE746067A (en) * 1969-02-21 1970-08-17 Gaz De Petrole DEVICE FOR DETECTION OF LEAKS FROM LIQUEFIED GAS BOTTLES, IN PARTICULAR PROPANE AND BUTANE
FR2749061A1 (en) * 1996-05-21 1997-11-28 Air Liquide Leakage container for gas bottles
JPH1061891A (en) * 1996-08-21 1998-03-06 Soukouken:Kk High pressure gas filling device
JP2005016709A (en) * 2003-06-04 2005-01-20 Neriki:Kk Gas cylinder, valve device for the same, and connecting structure of gas cylinder and valve device
CN203443745U (en) * 2013-08-22 2014-02-19 江苏省特种设备安全监督检验研究院宿迁分院 Airtightess detection apparatus for vehicle natural gas bottle
JP2014088189A (en) * 2012-10-29 2014-05-15 Omori Mach Co Ltd Gas charging device
CN104931367A (en) * 2015-06-25 2015-09-23 北京建筑大学 Movement life tester for upper limb joints of hermetic pressure extravehicular spacesuit
CN204730989U (en) * 2015-07-20 2015-10-28 深圳先进技术研究院 Sealing propertytest system
CN105173541A (en) * 2015-09-17 2015-12-23 宁波灿炜机械制造有限公司 High-pressure leakiness inspector for aerosol cans

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE746067A (en) * 1969-02-21 1970-08-17 Gaz De Petrole DEVICE FOR DETECTION OF LEAKS FROM LIQUEFIED GAS BOTTLES, IN PARTICULAR PROPANE AND BUTANE
FR2749061A1 (en) * 1996-05-21 1997-11-28 Air Liquide Leakage container for gas bottles
JPH1061891A (en) * 1996-08-21 1998-03-06 Soukouken:Kk High pressure gas filling device
JP2005016709A (en) * 2003-06-04 2005-01-20 Neriki:Kk Gas cylinder, valve device for the same, and connecting structure of gas cylinder and valve device
JP2014088189A (en) * 2012-10-29 2014-05-15 Omori Mach Co Ltd Gas charging device
CN203443745U (en) * 2013-08-22 2014-02-19 江苏省特种设备安全监督检验研究院宿迁分院 Airtightess detection apparatus for vehicle natural gas bottle
CN104931367A (en) * 2015-06-25 2015-09-23 北京建筑大学 Movement life tester for upper limb joints of hermetic pressure extravehicular spacesuit
CN204730989U (en) * 2015-07-20 2015-10-28 深圳先进技术研究院 Sealing propertytest system
CN105173541A (en) * 2015-09-17 2015-12-23 宁波灿炜机械制造有限公司 High-pressure leakiness inspector for aerosol cans

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
冯强;王生;: "火星着陆缓冲气囊冲击过程的仿真分析", 计算机仿真, no. 11 *
范旭;: "浅论车用气瓶安装监督检验及检验重点和常见问题的分析", 科技致富向导, no. 14 *
高海静;: "压缩天然气气瓶检测管理系统的设计", 兰州交通大学学报, no. 04 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108146234A (en) * 2017-12-28 2018-06-12 天津良华新能源科技有限公司 Fluid pressure type CNG gas-cylinder retaining assemblies
CN112729709A (en) * 2020-12-21 2021-04-30 湖南富佳钢瓶制造有限公司 Liquefied gas cylinder airtightness detection device and detection method thereof
CN113203042A (en) * 2021-04-01 2021-08-03 无锡恒大电子科技有限公司 Full-automatic special gas delivery cabinet leakage detection device
CN114593359A (en) * 2022-03-23 2022-06-07 嘉兴亚航信息技术有限公司 Safety prevention monitoring system for gas cylinder filling station
CN114593359B (en) * 2022-03-23 2024-03-15 嘉兴亚航信息技术有限公司 Safety prevention monitoring system for gas cylinder filling station

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