CN201207013Y - Detecting machine for airtightness of oil tank - Google Patents

Detecting machine for airtightness of oil tank Download PDF

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Publication number
CN201207013Y
CN201207013Y CNU2008200982700U CN200820098270U CN201207013Y CN 201207013 Y CN201207013 Y CN 201207013Y CN U2008200982700 U CNU2008200982700 U CN U2008200982700U CN 200820098270 U CN200820098270 U CN 200820098270U CN 201207013 Y CN201207013 Y CN 201207013Y
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CN
China
Prior art keywords
controller
detect
cylinder
valve
control
Prior art date
Application number
CNU2008200982700U
Other languages
Chinese (zh)
Inventor
谭明荣
Original Assignee
重庆宗申技术开发研究有限公司
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Publication date
Application filed by 重庆宗申技术开发研究有限公司 filed Critical 重庆宗申技术开发研究有限公司
Priority to CNU2008200982700U priority Critical patent/CN201207013Y/en
Application granted granted Critical
Publication of CN201207013Y publication Critical patent/CN201207013Y/en

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Abstract

The utility model relates to a gasoline tank air tightness tester, comprising a testing controller, a cylinder, a holding fixture, a regulating device, an electromagnetic valve, a pneumatic control system and a testing platform. An upright post is arranged on the testing platform and the testing controller is installed on the upright post. The cylinder is arranged below the testing controller, the holding fixture is arranged below the cylinder, and the holding fixture is fixed on the testing platform. The pneumatic control system is composed of a sequentially connected air supply triple piece, including a pressure reducing valve, a pressure gauge and a regulating valve, and is used to provide compressed gas whose pressure is precisely controlled for the testing controller. The testing controller is connected with the pneumatic control system through the regulating valve to control inflation pressure and inflation time. The testing controller controls the electromagnetic valve to close and judges whether the gasoline tank is in accordance with standard according pressure difference at set time. The gasoline tank air tightness tester has the good effects of simple structure, convenient, quick, clean and precise testing, low cost and high automation degree.

Description

The airtight machines of fuel tank

Technical field

The utility model relates to a kind of airtight testing tool, particularly relates to a kind of airtight machines of fuel tank of differential pressure type.

Background technology

At present, traditional detection test specimen sealing (claiming again to leak) is to adopt immersion or the visual bubble method of immersion oil, its equipment is simple, visual result, but accuracy of detection and efficient are low, the human factor influence is bigger, can't realize that automatic ration leaks hunting, also can bring humidity to get rusty simultaneously, harmful effect and loaded down with trivial details test specimen surface attached water (or oil) aftertreatments such as impurity immersion to workpiece, even some product do not allow to detect with the method, as: electronics, electric elements etc.

The utility model content

In view of above-mentioned purpose, the utility model is for solving the technical matters that exists in the known technology, and provide a kind of have can increase work efficiency, reduce labour intensity carries out airtight measuring ability automatically to fuel tank machines.

The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is:

The airtight machines of a kind of fuel tank of differential pressure type, comprise and detect controller, cylinder, clamp device, variable valve, solenoid valve, atmospheric control and detect stand, detect on the stand column is set, detecting controller is installed on the column, detect the controller below cylinder is set, the cylinder below is provided with clamp device, clamp device is fixed in and detects on the stand, it is characterized in that, atmospheric control comprises source of the gas three linked piece, reduction valve, tensimeter, the variable valve that order links to each other, and being responsible for the detection controller provides controlled pressure accurate pressure gas; Detect controller and be connected by variable valve, control charge pressure and inflationtime with atmospheric control; Detect the controller control electromagnetic valve and turn-off, close the time differential pressure value of having no progeny according to the rules and judge whether fuel tank is qualified.

The airtight machines of this fuel tank detects controller and falls by the pressure that the leakage of temperature compensation correction test specimen produces, and detects the differential pressure value by the test specimen and the standard component of same gas circuit; Detect controller and comprise mainboard and be connected to PORT COM, driving circuit, control panel on the mainboard that sensor is connected with mainboard with AD conversion unit by accurate amplifying unit; Driving circuit regulating and controlling valve, qualified indicating device, detection indicating device, alarm buzzer, anchor clamps control inductor; Detect controller and have automatic, manual two kinds of control modes; Clamp device is fixed in the following block head of testboard bay and is supported formation by the upper plug head that is connected in the cylinder below.

Advantage and the good effect that the utlity model has are: this machines adopts advanced microcomputer chip, high-precision sensor and zero leakage solenoid valve, and is durable in use to guarantee testing result accuracy and instrument.Automatic control detection process of micro computer and image data adopt optimized Algorithm and special software that data are carried out analyzing and processing, have farthest compensated the influences such as (comprising environment temperature) of the temperature in the testing process.Overcome external interference, realized that the direct pressure difference leaks hunting, testing result is directly perceived, has the very high ratio of performance to price.This instrumentation is simple, does not need special training, and setting it has after the related parameter, and the user need only just can obtain detecting data and qualified, defective indication by the operation key.

State with other purposes, feature and advantage and can become apparent on the utility model for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.

Description of drawings

Fig. 1 is the synoptic diagram of the airtight machines of fuel tank of the utility model one specific embodiment;

Fig. 2 is the enlarged drawing of the airtight machines control panel of fuel tank among Fig. 1;

Fig. 3 is the fuel tank air tightness test schematic diagram of the utility model one specific embodiment.

Description of reference numerals: numerical key 0-9, SET key 10, ↑ key 11, ↓ key 12, ENT key 13, detect key 14, reset key 15, liquid crystal display 16, qualified pilot lamp 17, detection pilot lamp 18, defective pilot lamp 19 detect controller 21, cylinder 22, upper plug head 23, following block head and support 24 detects stand 25, column 26, source of the gas 31, high-precision power 48.

Embodiment

As shown in Figure 1, the utility model one preferred embodiment as shown in Figure 1, among the figure, the airtight machines of a kind of fuel tank, comprise and detect controller 21, cylinder 22, clamp device, variable valve, atmospheric control and detect stand 25, detect on the stand column 26 is set, detecting controller 21 is installed on the column 26, detect controller 21 belows cylinder 22 is set, cylinder 22 belows are provided with clamp device, clamp device is fixed in the following block head of testboard bay 25 and is supported 24 formations by the upper plug head 23 that is connected in cylinder 22 belows.

Atmospheric control comprises that source of the gas 31, filtrator 32, reduction valve 33, variable valve 35 orders link to each other, and two tensimeters 34,36 are connected to reduction valve 33, variable valve 35 afterwards to measure the pressure of the pressure gas after reduction valve 33 decompressions and voltage stabilizing and after variable valve 35 is regulated.Variable valve 42 is connected on the gas circuit of atmospheric control and measured piece 40 centres, and variable valve 41 is connected on the measured piece 40, and variable valve 42,41 links to each other with mainboard 50 by the driving circuit in the electronic control system 51, controls its work by electronic control system.Variable valve 39 also is connected on the measured piece 40.

The circuit connecting mode that detects in the controller 21 is as follows: differential pressure flow sophisticated sensor 37 is connected to variable valve 42 and variable valve 39 with pressure transducer 38, differential pressure flow sophisticated sensor 37 is electrically connected to accurate amplifying unit 43 with the output terminal of pressure transducer 38, change 44 sending pressure signals to mainboard 50 through A/D again, mainboard 50 also is electrically connected temperature signal sensor 45, PORT COM 46, LCD 47, high-precision power 48, operation keyboard 49, driving circuit 51 these several modules.Mainboard 10 can receive the data with treatment temperature signal transducer 45, falls to reveal the pressure that produces by temperature compensation correction test specimen.Driving circuit 51 drives variable valve 42,41, provides controlled pressure accurate pressure gas for detecting controller.Driving circuit 51 also drives qualified indicating device 52, detects indicating device 53, defective indicating device 54, alarm buzzer 55, anchor clamps control signal 56, can demonstrate the different operating state of the airtight machines of fuel tank, the handled easily personnel regulate and safeguard.Manual, automatic two kinds of control modes that electric control system has, selected by selector switch, ordinary production is an automated manner, uses manual mode when installation, maintenance, debugging.

As shown in Figure 2, the front panel key name and the purposes that detect controller 21 are as follows: numerical key 0-9 is used for parameter setting, SET key 10 is used for image switching, ↑ key 11 is used for shifting bond(s) on handoff parameter and the cursor, ↓ key 12 is used for shifting bond(s) under handoff parameter and the cursor, ENT key 13 is used for parameter setting and confirms, detect key 14 and be used for detecting instruction, reset key 15 resets and built-in systemization before being used for using, liquid crystal display 16 is used for the testing process median surface and shows, qualified pilot lamp 17 is used for qualified indication, detect pilot lamp 18 and be used for detecting indication, defective pilot lamp 19 is used for defective indication.

Detection principle and process to the airtight machines of fuel tank of the utility model embodiment describes with reference to the accompanying drawings.As shown in Figure 3, machines is input to the accurate pressurized air of controlled pressure in the test specimen, automatically shut down source of inflation gas then, solenoid valve is accurately controlled the air balance of stipulated time, the solenoid valve that has turn-offed equilibrium activity again (has by test specimen in equalizing valve one termination, the standard component that another termination is not leaked), by the accurate little differential pressure sensor that is connected by the same gas circuit of test specimen and standard component, measure at the appointed time standard component with by the differential pressure value of test specimen, obtain being fallen by temperature compensation again, thereby judge whether test specimen leaks by the pressure that the actual leakage of test specimen produces.

The airtight machines testing process of the fuel tank of the utility model embodiment is at first power-on and source of the gas, preheating after 5 minutes by resetting, enter the detection interface charge pressure and time are set then, adjust clamp device, fuel tank is put into clamp device, by detecting key 14, last shutoff 23 and inflation mechanism descend automatically and compress tank filler, make it airtight, simultaneously the test side tracheae is inserted the fuel tank oil outlet, N1 is after second in time-delay, the solenoid valve that is connected the test side is opened (solenoid valve that is connected to the differential pressure inductor is simultaneously also opened), and the pressurized air of connection is inflated in cylinder behind reduction valve and accurate voltage regulating valve, detector control charge pressure and inflationtime, the instrument control electromagnetic valve is turn-offed, the pass time differential pressure value of having no progeny according to the rules judges whether test specimen qualified, detects controller display result and acousto-optic hint, detect finish after, last shutoff 23 and the inflation mechanism return that rises is automatically done to detect next time and is prepared.

The utility model also has some following characteristics: inflationtime, equilibration time, detection time, acceptance value can arbitrarily be set according to on-the-spot product requirement; Full Chinese interface, Color Liquid Crystal Display; Add up the same day and detect total number of packages, qualified number of packages, defective number of packages; Can set 10 groups of parameters (10 channels); Whether self-checking function, detecting instrument can operate as normal; Communication function is convenient to carry out field monitoring with other computer networkings; Qualified/two kinds of alternative sounds promptings respectively when defective; Show the test pressure change trend curve; Have the interface signal output function, be convenient to be connected with other control system.

A preferred embodiment technical parameter of the present utility model and requirement can reach following standard respectively: the range of gauge pressure is 0-100Kpa, and precision can reach 0.3%; The range of differential pressure is 0-2000pa, and precision is ± 2pa that resolution is 1pa; Display device adopts the colour liquid crystal display device of rectangular lattice, and resolution can reach 320*240dpi; Peak power is no more than 19.4W during work.

Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any person of ordinary skill in the field; in the spirit and scope that do not break away from the utility model; when can doing a little change and improvement, so the protection domain of the utility model is as the criterion when looking the claim person of defining.

Claims (4)

1. airtight machines of fuel tank, comprise and detect controller, cylinder, clamp device, variable valve, solenoid valve, atmospheric control and detect stand, detect on the stand column is set, detecting controller is installed on the column, detect the controller below cylinder is set, the cylinder below is provided with clamp device, clamp device is fixed in and detects on the stand, it is characterized in that, atmospheric control comprises the source of the gas three linked piece that order links to each other: reduction valve, tensimeter, variable valve, and being responsible for the detection controller provides controlled pressure accurate pressure gas; Detect controller and be connected by variable valve, control charge pressure and inflationtime with atmospheric control; Detect the controller control electromagnetic valve and turn-off, close the time differential pressure value of having no progeny according to the rules and judge whether fuel tank is qualified.
2. the airtight machines of fuel tank according to claim 1 is characterized in that, detects controller and comprises mainboard and be connected to PORT COM, driving circuit, control panel on the mainboard that sensor is connected with mainboard with AD conversion unit by accurate amplifying unit.
3. the airtight machines of fuel tank according to claim 2 is characterized in that, driving circuit regulating and controlling valve, qualified indicating device, detection indicating device, alarm buzzer, anchor clamps control inductor.
4. the airtight machines of fuel tank according to claim 3 is characterized in that, clamp device is fixed in the following block head of testboard bay and is supported formation by the upper plug head that is connected in the cylinder below.
CNU2008200982700U 2008-05-13 2008-05-13 Detecting machine for airtightness of oil tank CN201207013Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200982700U CN201207013Y (en) 2008-05-13 2008-05-13 Detecting machine for airtightness of oil tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200982700U CN201207013Y (en) 2008-05-13 2008-05-13 Detecting machine for airtightness of oil tank

Publications (1)

Publication Number Publication Date
CN201207013Y true CN201207013Y (en) 2009-03-11

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CNU2008200982700U CN201207013Y (en) 2008-05-13 2008-05-13 Detecting machine for airtightness of oil tank

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102243129A (en) * 2010-05-12 2011-11-16 广东百威电子有限公司 Gas leakage checking device
CN102901609A (en) * 2012-10-23 2013-01-30 汕头市东方科技有限公司 Automatic aluminum pot leak detector
CN101988861B (en) * 2009-07-30 2013-09-11 上海新沪电机厂有限公司 System for detecting air tightness of cavity of mechanical and electrical product
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
CN103644893A (en) * 2013-11-15 2014-03-19 昆山艾博机器人系统工程有限公司 Workpiece placing detection device
CN104359636A (en) * 2014-11-07 2015-02-18 珠海格力电器股份有限公司 Tank airtightness detection system
CN104977162A (en) * 2015-06-30 2015-10-14 柳州市邕达工配厂 Main body rack for clamp test stand
CN105334003A (en) * 2015-12-09 2016-02-17 天津市捷威动力工业有限公司 Power battery package sealing detection device
CN106017826A (en) * 2016-06-22 2016-10-12 苏州艾酷玛赫设备制造有限公司 Box airtightness test device
CN106197902A (en) * 2016-07-22 2016-12-07 华中科技大学 A kind of air tightness detection apparatus and method of servo-controlling thereof
CN106289675A (en) * 2015-06-01 2017-01-04 青岛海尔新能源电器有限公司 Inner bag anhydrous pressure testing testing stand, system and method
CN107490459A (en) * 2017-10-09 2017-12-19 深圳天邦美科技有限公司 A kind of ventilating control method of air-leakage detector detection seal products
CN108507726A (en) * 2018-02-28 2018-09-07 重庆广福科技有限公司 The mechanism of detectable auto parts machinery air-tightness
CN109141781A (en) * 2018-08-16 2019-01-04 常州信息职业技术学院 Fuel tank device for detecting sealability and its detection method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101988861B (en) * 2009-07-30 2013-09-11 上海新沪电机厂有限公司 System for detecting air tightness of cavity of mechanical and electrical product
CN102243129A (en) * 2010-05-12 2011-11-16 广东百威电子有限公司 Gas leakage checking device
CN102901609B (en) * 2012-10-23 2015-07-29 汕头市东方科技有限公司 A kind of Automatic aluminum pot leak detector
CN102901609A (en) * 2012-10-23 2013-01-30 汕头市东方科技有限公司 Automatic aluminum pot leak detector
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
CN103644893A (en) * 2013-11-15 2014-03-19 昆山艾博机器人系统工程有限公司 Workpiece placing detection device
CN104359636A (en) * 2014-11-07 2015-02-18 珠海格力电器股份有限公司 Tank airtightness detection system
CN106289675A (en) * 2015-06-01 2017-01-04 青岛海尔新能源电器有限公司 Inner bag anhydrous pressure testing testing stand, system and method
CN104977162A (en) * 2015-06-30 2015-10-14 柳州市邕达工配厂 Main body rack for clamp test stand
CN105334003A (en) * 2015-12-09 2016-02-17 天津市捷威动力工业有限公司 Power battery package sealing detection device
CN106017826A (en) * 2016-06-22 2016-10-12 苏州艾酷玛赫设备制造有限公司 Box airtightness test device
CN106197902A (en) * 2016-07-22 2016-12-07 华中科技大学 A kind of air tightness detection apparatus and method of servo-controlling thereof
CN107490459A (en) * 2017-10-09 2017-12-19 深圳天邦美科技有限公司 A kind of ventilating control method of air-leakage detector detection seal products
CN108507726A (en) * 2018-02-28 2018-09-07 重庆广福科技有限公司 The mechanism of detectable auto parts machinery air-tightness
CN109141781A (en) * 2018-08-16 2019-01-04 常州信息职业技术学院 Fuel tank device for detecting sealability and its detection method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHONGQING ZONGSHEN GENERAL POWER MACHINE CO., LTD.

Free format text: FORMER OWNER: CHONGQING ZONGSHEN TECHNOLOGY DEVELOPMENT + RESEARCH CO. LTD.

Effective date: 20101115

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 400039 NO.25, ERLANG ROAD, SHIQIAOPU, HIGH-TECH. ZONE, CHONGQING CITY TO: 400054 CHAOYOUCHANG, BA NAN DISTRICT, CHONGQING CITY

TR01 Transfer of patent right

Effective date of registration: 20101115

Address after: 400054 Banan District, Chongqing fried oil field

Patentee after: Chongqing Zongshen General Power Machine Co., Ltd.

Address before: 400039, No. 25 Erlang Road, Chongqing hi tech Development Zone, Shiqiaopu

Patentee before: Chongqing Zongshen Technology Development & Research Co., Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090311

Termination date: 20110513