CN2539021Y - Leakage-preventing flange sealer - Google Patents

Leakage-preventing flange sealer Download PDF

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Publication number
CN2539021Y
CN2539021Y CN 02227093 CN02227093U CN2539021Y CN 2539021 Y CN2539021 Y CN 2539021Y CN 02227093 CN02227093 CN 02227093 CN 02227093 U CN02227093 U CN 02227093U CN 2539021 Y CN2539021 Y CN 2539021Y
Authority
CN
China
Prior art keywords
flange
sealing
gap
leak
vacuum pump
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CN 02227093
Other languages
Chinese (zh)
Inventor
李建和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinlonghao Ind Technology Co L
Original Assignee
Xinlonghao Ind Technology Co L
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 Xinlonghao Ind Technology Co L filed Critical Xinlonghao Ind Technology Co L
Priority to CN 02227093 priority Critical patent/CN2539021Y/en
Application granted granted Critical
Publication of CN2539021Y publication Critical patent/CN2539021Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an anti-leakage flange sealing device, comprising a flange and a blinding plate matching with the flange. Two sealing rings are pressed between the contact surfaces of the flange and the blinding plate. The gap between the two sealing rings are connected with a vacuum pump through a vacuum pumping interface. The utility model is characterized in that when the vacuum pump is started, the gap between the two sealing rings is at a vacuum state; the flange, the blinding plate and the sealing parts are combined tightly; if any of the sealing ring leakages during the application process, the leaking gas moved to the gap between the two sealing rings and then is pumped out centralized without gas escape. When detecting air tightness of the vessel, the leaking gas between the flange and the blinding plate is pumped out by the vacuum pump, thereby the air tightness detecting process of the vessel is not influenced.

Description

A kind of flange sealer of anti-leak
Technical field
The utility model relates to a kind of flange sealer of anti-leak.
Background technique
In actual production process, usually need the flange on container or the pipeline is carried out encapsulation process.Encapsulating method commonly used is that blind plate and Sealing are installed on flange mouth.But in actual mechanical process; regular meeting is because of blind plate and Sealing is installed imappropriate or seal fails causes fluid to leak from sealed interface; and can not find timely; will cause the loss in the production like this; if what store in container or the pipeline or transport is materials such as flammable explosive gas, corrosive liquids; can not find in time that consequence will be very serious in case take place to leak.And for the container that has sealing flange, when producing, usually need with blind plate flange mouth to be sealed, then container is done necessary tightness leak detection test.Flange mouth might seal badly because of a variety of causes when blind plate is installed, and makes the interface of flange and blind plate leak, and this leakage can have a strong impact on the air tightness test result to container, and test can't be carried out.
The model utility content
The purpose of this utility model provides a kind of flange sealer of anti-leak, can reach efficient sealing effect in actual production, also can carry out getting rid of the influence that flange mouth leaks when tightness detects to container.
In order to achieve the above object, the flange sealer of a kind of anti-leak described in the utility model comprises flange and the blind plate that matches with flange, it is characterized in that: be pressed with two seal rings between the surface of contact of flange and blind plate, the space between two seal rings is connected with vacuum pump by vacuumizing interface.
In order qualitatively judging whether gas leakage to be arranged, to vacuumize access one pressure-vacuum gauge between interface and the vacuum pump.
After adopting said structure, make the gap between two seal rings be in vacuum state like this, flange, blind plate and Sealing are combined closely, play good seal action by starting vacuum pump; Leak in case arbitrary seal ring in use occurs, the gas of leakage will inevitably arrive the space between two seal rings, takes (or collection) away and is unlikely to leak thereby concentrated by vacuum pump, causes bad consequence.Simultaneously, in the seal process that detects container, owing to all taken away by vacuum pump from the gas that leaks between flange and the blind plate, thereby can not influence the influence that container air-tightness is detected.
Description of drawings
Fig. 1 is the structural drawing of the flange sealer of a kind of anti-leak described in the utility model.
Embodiment
As shown in Figure 1, the flange sealer of a kind of anti-leak described in the utility model comprises flange 1, the blind plate 5 that matches with flange 1, inner seal ring 3 and exterior seal ring 2, form a gap 4 between inner seal ring 3 and the exterior seal ring 2, gap 4 is by the evacuated interface 6 and the pipeline 7 external vacuum pumps 9 of finding time.
After adopting said structure, after flange 1, blind plate 5, inner seal ring 3 and exterior seal ring 2 were installed and compressed, gap 4 had just become the space of a sealing.Start return pump 9 and vacuumize, make the vacuum pressure value in gap 4 be lower than the force value of inner seal ring 3 and exterior seal ring 2 opposite sides, thereby reach the sealing effect of anti-leak by pipeline 7 and 6 pairs of gaps 4 of interface.If arbitrary seal ring is former thereby cause leaking because of ageing failure etc., return pump 9 just can be concentrated and take (or collection) away and be unlikely to cause from the material of seal ring leakage and leak, and avoids the generation of accident.
The flange sealer of a kind of anti-leak described in the utility model can also be by vacuumizing interface 6 and vacuum-pumping pipeline 7 external pressure-vacuum gauges 8.Gap 4 records the vacuum pressure value in 4 li in gap by pressure-vacuum gauge after vacuumizing, in case the vacuum pressure value in gap 4 raises, just show that seal ring is in leak condition, thereby make the user in time make remedial measure, avoids the generation of accident.Because this improvement can judge whether the seal degree of flange-interface meets the requirements by pressure-vacuum gauge fast quantification ground, so the model utility after this improvement can be used in the production process tightness leak detection test to the container that has sealing flange, the possibility that influences the result that the tightness leak detection of container is tested takes place to leak because of the interface of flange and blind plate in eliminating, improve the accuracy of tightness leak detection test, and be suitable for the automatic online detection.

Claims (2)

1. the flange sealer of an anti-leak, comprise flange (1) and the blind plate (5) that matches with flange, it is characterized in that: between the surface of contact of flange (1) and blind plate (5), be pressed with two seal rings (2,3), space between two seal rings (2,3) is connected with vacuum pump (9) by vacuumizing interface (6).
2. by the flange sealer of the described a kind of anti-leak of claim 1, it is characterized in that: vacuumizing access one pressure-vacuum gauge (8) between interface (6) and the vacuum pump (9).
CN 02227093 2002-04-25 2002-04-25 Leakage-preventing flange sealer Expired - Lifetime CN2539021Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02227093 CN2539021Y (en) 2002-04-25 2002-04-25 Leakage-preventing flange sealer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02227093 CN2539021Y (en) 2002-04-25 2002-04-25 Leakage-preventing flange sealer

Publications (1)

Publication Number Publication Date
CN2539021Y true CN2539021Y (en) 2003-03-05

Family

ID=33703950

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02227093 Expired - Lifetime CN2539021Y (en) 2002-04-25 2002-04-25 Leakage-preventing flange sealer

Country Status (1)

Country Link
CN (1) CN2539021Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102313016A (en) * 2011-08-25 2012-01-11 中国石油化工股份有限公司 Sealing control method for equipment
CN102435402A (en) * 2011-12-01 2012-05-02 西北核技术研究所 Device for detecting leak rate of sealing ring
CN101818995B (en) * 2009-02-26 2012-11-21 中国二十冶集团有限公司 Flange port plugging device and method of industrial furnace body
CN102818021A (en) * 2012-09-05 2012-12-12 浙江大学 Pressure vessel door quickly-opened device with leakage on-line detection function
CN102879156A (en) * 2012-09-17 2013-01-16 中国石油大学(北京) Sealing pressure test method for O-shaped seal rings and sealing device for O-shaped seal rings
CN104316271A (en) * 2014-11-04 2015-01-28 天津博益气动股份有限公司 Air tightness testing tool for valve bodies of unthreaded hole connector types
GB2549335A (en) * 2016-04-15 2017-10-18 Micromass Ltd A sealing arrangement

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101818995B (en) * 2009-02-26 2012-11-21 中国二十冶集团有限公司 Flange port plugging device and method of industrial furnace body
CN102313016A (en) * 2011-08-25 2012-01-11 中国石油化工股份有限公司 Sealing control method for equipment
CN102313016B (en) * 2011-08-25 2014-08-27 中国石油化工股份有限公司 Sealing control method for equipment
CN102435402A (en) * 2011-12-01 2012-05-02 西北核技术研究所 Device for detecting leak rate of sealing ring
CN102818021A (en) * 2012-09-05 2012-12-12 浙江大学 Pressure vessel door quickly-opened device with leakage on-line detection function
CN102818021B (en) * 2012-09-05 2015-04-15 浙江大学 Pressure vessel door quickly-opened device with leakage on-line detection function
CN102879156A (en) * 2012-09-17 2013-01-16 中国石油大学(北京) Sealing pressure test method for O-shaped seal rings and sealing device for O-shaped seal rings
CN102879156B (en) * 2012-09-17 2015-11-04 中国石油大学(北京) The sealing pressure-measuring method of O-ring seals and packoff thereof
CN104316271A (en) * 2014-11-04 2015-01-28 天津博益气动股份有限公司 Air tightness testing tool for valve bodies of unthreaded hole connector types
GB2549335A (en) * 2016-04-15 2017-10-18 Micromass Ltd A sealing arrangement

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20120425

Granted publication date: 20030305