CN104215408A - Valve air tightness detection system - Google Patents

Valve air tightness detection system Download PDF

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Publication number
CN104215408A
CN104215408A CN201310211035.5A CN201310211035A CN104215408A CN 104215408 A CN104215408 A CN 104215408A CN 201310211035 A CN201310211035 A CN 201310211035A CN 104215408 A CN104215408 A CN 104215408A
Authority
CN
China
Prior art keywords
valve
detection platform
detection
admission line
air tightness
Prior art date
Application number
CN201310211035.5A
Other languages
Chinese (zh)
Inventor
周晓来
Original Assignee
宁波富华阀门有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波富华阀门有限公司 filed Critical 宁波富华阀门有限公司
Priority to CN201310211035.5A priority Critical patent/CN104215408A/en
Publication of CN104215408A publication Critical patent/CN104215408A/en

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Abstract

The invention relates to a valve air tightness detection system capable of detecting air tightness efficiently. The valve air tightness detection system comprises a main air intake pipeline, a detection platform air intake pipeline and a detection platform air exhaust pipeline, a first pressure gauge, a first valve and a second valve are arranged on the main air intake pipeline sequentially according to the air intake direction, the detection platform air intake pipeline is arranged between the first valve and the second valve and communicated with main air intake pipeline, a second pressure gauge is arranged detection platform air exhaust pipeline, and to-be-detected valves are mounted between the detection platform air intake pipeline and the detection platform air exhaust pipeline. Compared with the prior art, the valve air tightness detection system is simple in structure and convenient to operate, can detect multiple to-be-detected valves simultaneously and can automatically control entering and exiting of air in the pipelines through a data processing control system.

Description

Valve air tightness detection system

Technical field

The present invention relates to valve air-leakage test field, particularly relate to valve air tightness detection system.

Background technology

The keying that cryogenic globe valve is used for the cryogens such as liquid nitrogen, liquid oxygen, liquid argon controls, and the working temperature of cryogenic globe valve is-196 DEG C.This valve needs to carry out normal temperature air-leakage test after fabrication, verifies cryogenic globe valve whether leakage at normal temperatures, ensures the normal use of cryogenic globe valve.The method of current use is manually installed on unit clamp by valve, is then immersed in the water or water put into by tail pipe, checks whether leakage by bubble.This detection mode detection efficiency is low, and cannot automatically control, and data also cannot be preserved.

Summary of the invention

The object of the invention is: a kind of valve air tightness detection system is provided, can the impermeability of high efficiency detection valve.

In order to solve the problems of the technologies described above, the invention provides a kind of valve air tightness detection system, comprise main admission line, the first tensimeter, the first valve, the second valve, detection platform admission line, detection platform gas exhaust duct and the second tensimeter; Described first tensimeter, the first valve, the second valve are set in sequence on described main admission line by airintake direction; Described detection platform admission line is arranged between described first valve and described second valve, and is communicated with described main admission line; Described second tensimeter is arranged on described detection platform gas exhaust duct; Valve installation to be detected is between described detection platform admission line and described detection platform gas exhaust duct.

Preferably, installation of relief valve gone back by described detection platform gas exhaust duct.

Preferably, also comprise reduction valve, described reduction valve is arranged between the air intake opening of described first tensimeter and described main admission line.

Preferably, the 3rd valve, the first pressure transducer, the second pressure transducer and data processing and control system is also comprised; Described 3rd valve is arranged on the main admission line between described first valve and described second valve; Described first pressure transducer is arranged on the main admission line between described 3rd valve and described second valve; Described second pressure transducer is arranged on described detection platform gas exhaust duct; Described second valve, the 3rd valve are all electrical ball valves; Described second valve, the 3rd valve, the first pressure transducer, the second pressure transducer are electrically connected with described data processing and control system respectively.

Preferably, also sealing cylinder is comprised; Described sealing cylinder is electrically connected with described data processing and control system; Described sealing cylinder is used for clamping valve to be detected.

Preferably, described sealing cylinder be two and more than, and to be connected in parallel on described detection platform admission line.

Relative to prior art, the present invention has the following advantages: whole detection system structure is simple, handled easily, and only valve to be measured need be loaded system can detect, and detection efficiency is high; Can detect multiple valve to be detected simultaneously, also automatically can be controlled by data processing and control system, and can save the data in data processing and control system.

Accompanying drawing explanation

Figure 1 shows that the block schematic illustration of valve air tightness detection system of the present invention.

Embodiment

In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.

A lot of detail has been set forth so that fully understand the present invention during description is below concrete; but the present invention can also adopt other to be different from other modes described here and realize; therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.

It should be noted that, when not conflicting, the feature in the implementation column of the application and embodiment can combine mutually.

As shown in Figure 1, the present embodiment valve air tightness detection system, comprises main admission line 1, first tensimeter 101, first valve 102, second valve 103, detection platform admission line 2, detection platform gas exhaust duct 3 and the second tensimeter 301; First tensimeter 101, first valve 102, second valve 103 is set in sequence on main admission line 1 by airintake direction (shown by arrow direction); Detection platform admission line 2 is arranged between the first valve 102 and the second valve 103, and is communicated with main admission line 1; Second tensimeter 301 is arranged on detection platform gas exhaust duct 3; Valve 6 to be detected is arranged between detection platform admission line 2 and detection platform gas exhaust duct 3.When detecting the impermeability of valve 6, close the first valve 102, open the second valve 103, ensure that whole pipeline is in atmospheric pressure state, valve 6 is arranged between detection platform admission line 2 and detection platform gas exhaust duct 3, close the second valve 103, close valve 6 to be detected, open the first valve 102, the air intake opening of main admission line 1 enters pure air and boosts to set pressure, observe the first tensimeter 101, whether the second tensimeter 301 changes, if unchanged, then open valve 6 to be detected, the air intake opening of main admission line 1 enters pure air and boosts to set pressure, observe the first tensimeter 101, whether the second tensimeter 301 changes, then illustrate that valve 6 impermeability is good if unchanged.

Further, detection platform gas exhaust duct 3 is gone back installation of relief valve 302, when detection, atmospheric valve 302 is cut out, and after one-time detection completes, opens atmospheric valve 302, and pressure release, to zero, is prepared against and detected next time.

Further, reduction valve 104 being also set between the first tensimeter 101 and the air intake opening of main admission line 1, in order to ensure that the gaseous tension required for detection is stablized, first force value can being set by reduction valve 104.

Further, the 3rd valve 105, first pressure transducer 106, second pressure transducer 303 and data processing and control system 4 is also comprised; 3rd valve 105 is arranged on the main admission line 1 between the first valve 102 and the second valve 103; First pressure transducer 106 is arranged on the main admission line 1 between the 3rd valve 105 and the second valve 103; Second pressure transducer 303 is arranged on detection platform gas exhaust duct 3; Second valve 103, the 3rd valve 105 are all electrical ball valves; Second valve 103, the 3rd valve 105, first pressure transducer 106, second pressure transducer 303 are electrically connected with data processing and control system 4 respectively.First pressure transducer 106, second pressure transducer 303 is used for responding to the gaseous tension in pipeline, and providing pressure sensitive signal to data processing and control system 4, data processing and control system 4 controls the opening and closing of the second valve 103, the 3rd valve 105 by pressure sensitive signal.For example, when gaseous tension in pipeline is excessive, data processing and control system 1 control second valve 103 close stop gas enter pipeline further, also can control the 3rd valve 105 open rush down portion gas until when in pipeline, gaseous tension is no longer excessive close the 3rd valve 105.

Further, also comprise two and above sealing cylinder 5, two and above sealing cylinder 5 and be connected in parallel on detection platform admission line 2, and be electrically connected with data processing and control system 4, sealing cylinder 5 is used for clamping valve 6 to be detected.Arranging of multiple sealing cylinder 5 can the simultaneously multiple valve 6 of clamping, when valve 6 is arranged between detection platform admission line 2 and detection platform gas exhaust duct 3, data processing and control system 4 controls sealing cylinder 5 and clamps, after detection completes, data processing and control system 4 controls sealing cylinder 5 and unclamps, and is taken off by the valve 6 detected.

Detection operating process is as follows: arrange force value by reduction valve; By valve installation to be detected between detection platform admission line and detection platform gas exhaust duct, clamp with sealing cylinder; Close tested valve, enter pure air boost to set pressure from air intake opening, the pressure observing air inlet/outlet does not change; Open tested valve, enter pure air boost to set pressure from air intake opening, the pressure of air inlet/outlet does not change; Open atmospheric valve to unload and be pressed onto zero; Dismantle tested valve.If when observing for twice, pressure does not all change, and illustrates that detected valve impermeability is good.

The announcement of book and instruction according to the above description, those skilled in the art in the invention can also change above-mentioned embodiment and revise.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the present invention.

Claims (6)

1. a valve air tightness detection system, is characterized in that: comprise main admission line, the first tensimeter, the first valve, the second valve, detection platform admission line, detection platform gas exhaust duct and the second tensimeter; Described first tensimeter, the first valve, the second valve are set in sequence on described main admission line by airintake direction; Described detection platform admission line is arranged between described first valve and described second valve, and is communicated with described main admission line; Described second tensimeter is arranged on described detection platform gas exhaust duct; Valve installation to be detected is between described detection platform admission line and described detection platform gas exhaust duct.
2. valve air tightness detection system as claimed in claim 1, is characterized in that: installation of relief valve gone back by described detection platform gas exhaust duct.
3. valve air tightness detection system as claimed in claim 1, it is characterized in that: also comprise reduction valve, described reduction valve is arranged between the air intake opening of described first tensimeter and described main admission line.
4. the valve air tightness detection system as described in as arbitrary in claims 1 to 3, is characterized in that: also comprise the 3rd valve, the first pressure transducer, the second pressure transducer and data processing and control system; Described 3rd valve is arranged on the main admission line between described first valve and described second valve; Described first pressure transducer is arranged on the main admission line between described 3rd valve and described second valve; Described second pressure transducer is arranged on described detection platform gas exhaust duct; Described second valve, the 3rd valve are all electrical ball valves; Described second valve, the 3rd valve, the first pressure transducer, the second pressure transducer are electrically connected with described data processing and control system respectively.
5. valve air tightness detection system as claimed in claim 4, is characterized in that: also comprise sealing cylinder; Described sealing cylinder is electrically connected with described data processing and control system; Described sealing cylinder is used for clamping valve to be detected.
6. valve air tightness detection system as claimed in claim 5, is characterized in that: described sealing cylinder be two and more than, and to be connected in parallel on described detection platform admission line.
CN201310211035.5A 2013-05-30 2013-05-30 Valve air tightness detection system CN104215408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310211035.5A CN104215408A (en) 2013-05-30 2013-05-30 Valve air tightness detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310211035.5A CN104215408A (en) 2013-05-30 2013-05-30 Valve air tightness detection system

Publications (1)

Publication Number Publication Date
CN104215408A true CN104215408A (en) 2014-12-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105181275A (en) * 2015-09-11 2015-12-23 王国良 Sealing test device
CN109238590A (en) * 2018-10-18 2019-01-18 合肥合茂电子科技有限公司 A kind of valve airtight detection apparatus
CN109323825A (en) * 2018-10-18 2019-02-12 合肥合茂电子科技有限公司 A kind of valve detection device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981529A (en) * 1982-05-17 1984-05-11 Hitachi Ltd Method and device for leakage detection of lined vessel
WO1999046573A1 (en) * 1998-03-10 1999-09-16 Marks Daniel L Versatile air test apparatus
CN2758728Y (en) * 2004-11-16 2006-02-15 唐欣 Detector for safety valve of transformer
CN202033160U (en) * 2011-04-02 2011-11-09 胡喜凤 Air-tightness tester
CN202471374U (en) * 2011-12-31 2012-10-03 凯迈(洛阳)气源有限公司 Multifunctional airtightness detection apparatus
CN102928209A (en) * 2011-08-11 2013-02-13 上海比泽机电设备科技有限公司 Comprehensive performance testing device for electronic expansion valve
CN203275043U (en) * 2013-05-30 2013-11-06 宁波富华阀门有限公司 Air-impermeability detection system of valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981529A (en) * 1982-05-17 1984-05-11 Hitachi Ltd Method and device for leakage detection of lined vessel
WO1999046573A1 (en) * 1998-03-10 1999-09-16 Marks Daniel L Versatile air test apparatus
CN2758728Y (en) * 2004-11-16 2006-02-15 唐欣 Detector for safety valve of transformer
CN202033160U (en) * 2011-04-02 2011-11-09 胡喜凤 Air-tightness tester
CN102928209A (en) * 2011-08-11 2013-02-13 上海比泽机电设备科技有限公司 Comprehensive performance testing device for electronic expansion valve
CN202471374U (en) * 2011-12-31 2012-10-03 凯迈(洛阳)气源有限公司 Multifunctional airtightness detection apparatus
CN203275043U (en) * 2013-05-30 2013-11-06 宁波富华阀门有限公司 Air-impermeability detection system of valve

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李解 等: "基于PLCS7_300电磁阀气密性检测平台设计", 《流体传动与控制》 *
郑培根 等: "气动电磁阀综合性能测试系统的研究", 《机床与液压》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105181275A (en) * 2015-09-11 2015-12-23 王国良 Sealing test device
CN109238590A (en) * 2018-10-18 2019-01-18 合肥合茂电子科技有限公司 A kind of valve airtight detection apparatus
CN109323825A (en) * 2018-10-18 2019-02-12 合肥合茂电子科技有限公司 A kind of valve detection device

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Application publication date: 20141217