CN103454046B - Air-tight test negative pressure cover - Google Patents

Air-tight test negative pressure cover Download PDF

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Publication number
CN103454046B
CN103454046B CN201310293840.7A CN201310293840A CN103454046B CN 103454046 B CN103454046 B CN 103454046B CN 201310293840 A CN201310293840 A CN 201310293840A CN 103454046 B CN103454046 B CN 103454046B
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CN
China
Prior art keywords
air
negative pressure
pressure cover
test negative
tight test
Prior art date
Application number
CN201310293840.7A
Other languages
Chinese (zh)
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CN103454046A (en
Inventor
张伟涛
袁东亚
朱建军
Original Assignee
上海船厂船舶有限公司
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.)
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Publication date
Application filed by 上海船厂船舶有限公司 filed Critical 上海船厂船舶有限公司
Priority to CN201310293840.7A priority Critical patent/CN103454046B/en
Publication of CN103454046A publication Critical patent/CN103454046A/en
Application granted granted Critical
Publication of CN103454046B publication Critical patent/CN103454046B/en

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Abstract

The invention discloses a kind of air-tight test negative pressure cover, run through the sealing of structure for signal piping.This air-tight test negative pressure cover includes a circular arc bell glass being provided with a vacuum table and at least one air valve, the indent arcuate flanks of described circular arc bell glass is mated with the outer surface of pipeline to be detected, described indent arc side opening is provided with at least one opening, forming a cavity in described circular arc bell glass, described air-tight test negative pressure cover also includes one for the sealing strip being closely adjacent to described opening.The air-tight test negative pressure cover device of the present invention is light, simple to operate, efficiently solves and just can detect sealing state when boats and ships not yet form sealed compartment and provide the problem sealing data.

Description

Air-tight test negative pressure cover

Technical field

The present invention relates to a kind of air-tightness detection device, particularly to a kind of air-tight test negative pressure cover.

Background technology

In recent years, International Maritime Organization (IMO) can constantly promulgate new mandatory specification, one of them Be exactly the boats and ships paint to ballast tank region in building course can only carry out limited repairing i.e. PSPC want Asking, thereby resulting in cabin air-leakage test, must to move forward to even parts-moulding stage segmentation fabrication stage complete Become.Therefore, just can detect sealing state when boats and ships not yet form sealed compartment and sealing data are provided, becoming The major issue solved it is badly in need of for this area.

Summary of the invention

The technical problem to be solved in the present invention is cannot to shift to an earlier date signal piping in prior art pass through to overcome The defect of sealing state when wearing close property bulkhead, it is provided that one can detect pipe easily and fast, exactly During the crossing cabin wall of road, the pipeline of sealing state runs through the air-tight test negative pressure cover of structure.

The present invention solves above-mentioned technical problem by following technical proposals:

A kind of air-tight test negative pressure cover, runs through the sealing of structure for signal piping, and its feature is, Described air-tight test negative pressure cover includes a circular arc bell glass being provided with a vacuum table and at least one air valve, The indent arcuate flanks of described circular arc bell glass is mated with the outer surface of pipeline to be detected, described imploded arcs Shape side opening is provided with at least one opening, forms a cavity, described air-tightness in described circular arc bell glass Test negative pressure cover also includes one for the sealing strip being closely adjacent to described opening.

It is preferred that the radian of described circular arc bell glass is 155 °~161 °.

It is preferred that the material of described circular arc bell glass is transparent organic glass.

It is preferred that the thickness of described transparent organic glass is 7mm~9mm.Described transparent organic glass can With the negative pressure born as 0.015MP~0.025MP.

It is preferred that the thickness of described circular arc bell glass is 100mm~110mm.

It is preferred that the quantity of described air valve is two.

It is preferred that the width of described sealing strip is 20mm~22mm, the thickness of described sealing strip is 25mm~30mm.

Wherein, the diameter of described circular arc bell glass can be adjusted according to the diameter of pipeline the most to be detected Joint.

On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, i.e. get Ben Fa Bright each preferred embodiments.

The most progressive effect of the present invention is: the air-tight test negative pressure cover device of the present invention is light, behaviour Make simple, efficiently solve and just can detect sealing state when boats and ships not yet form sealed compartment and sealing is provided The problem of data, and the pipe that this air-tight test negative pressure cover is readily adaptable for use in other industry runs through knot The air-leakage test of structure.

Accompanying drawing explanation

Fig. 1 is the perspective view of the air-tight test negative pressure cover of the present invention.

Detailed description of the invention

Further illustrate the present invention below by the mode of embodiment, but the most therefore limit the present invention to Among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, according to often Rule method and condition, or select according to catalogue.

As it is shown in figure 1, the air-tight test negative pressure cover of the present embodiment may be used for signal piping and runs through structure Sealing, it includes that one is provided with 11, intake valve 12 of a vacuum table and the circle of an air outlet valve 13 Arc-shape glass cover 1, the radian of this circular arc bell glass is 158 °, and the thickness of this circular arc bell glass is 105mm, this circular arc bell glass selection thickness is the transparent organic glass of 7mm, described circular arc glass The indent arcuate flanks of glass cover is mated with the outer surface of pipeline to be detected, and described indent arc side opening is provided with One opening, forms a cavity in described circular arc bell glass, and described air-tight test negative pressure cover also includes One for the sealing strip 2 being closely adjacent to described opening, and the width of this sealing strip is 20mm, thickness is 25mm。

Use the air-tight test negative pressure cover signal piping operation through the sealing of bulkhead of the present embodiment Process is as follows:

1) cleaning channels is through the weld seam of the required detection of bulkhead.

2) display masking liquid (industry liquid detergent) is spread upon on the weld seam needing test.

3) air-tight test negative pressure cover is covered on the position while welding needing to test, and compresses.

4) open intake valve and observe vacuum table.

5) when vacuum table data reach requirement, close intake valve and wait for several minutes quietly, it is ensured that vacuum table number According to stable.

6) the display masking liquid whether bubble of commissure is observed through transparent air-tight test negative pressure cover.

7) if there being bubble, recording effervescent position, opening air outlet valve, remove device, revise weld seam Leak source.

Although the foregoing describing the detailed description of the invention of the present invention, but those skilled in the art should managing Solving, these are merely illustrative of, and protection scope of the present invention is defined by the appended claims.This The technical staff in field, can be to these embodiment party on the premise of without departing substantially from the principle of the present invention and essence Formula makes various changes or modifications, but these changes and amendment each fall within protection scope of the present invention.

Claims (6)

1. an air-tight test negative pressure cover, runs through the sealing of structure for signal piping, its feature Being, described air-tight test negative pressure cover includes a circular arc glass being provided with a vacuum table and at least one air valve Glass cover, the indent arcuate flanks of described circular arc bell glass is mated with the outer surface of pipeline to be detected, described Indent arc side opening is provided with at least one opening, forms a cavity in described circular arc bell glass, described Air-tight test negative pressure cover also includes one for the sealing strip being closely adjacent to described opening,
Wherein, the radian of described circular arc bell glass is 155 °~161 °.
2. air-tight test negative pressure cover as claimed in claim 1, it is characterised in that described circular arc The material of bell glass is transparent organic glass.
3. air-tight test negative pressure cover as claimed in claim 2, it is characterised in that described transparent have The thickness of machine glass is 7mm~9mm.
4. air-tight test negative pressure cover as claimed in claim 1, it is characterised in that described circular arc The thickness of bell glass is 100mm~110mm.
5. air-tight test negative pressure cover as claimed in claim 1, it is characterised in that described air valve Quantity is two.
6. air-tight test negative pressure cover as claimed in claim 1, it is characterised in that described sealing strip Width be 20mm~22mm, the thickness of described sealing strip is 25mm~30mm.
CN201310293840.7A 2013-07-12 2013-07-12 Air-tight test negative pressure cover CN103454046B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310293840.7A CN103454046B (en) 2013-07-12 2013-07-12 Air-tight test negative pressure cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310293840.7A CN103454046B (en) 2013-07-12 2013-07-12 Air-tight test negative pressure cover

Publications (2)

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CN103454046A CN103454046A (en) 2013-12-18
CN103454046B true CN103454046B (en) 2016-12-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310293840.7A CN103454046B (en) 2013-07-12 2013-07-12 Air-tight test negative pressure cover

Country Status (1)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2033900U (en) * 1987-12-18 1989-03-08 大庆石油管理局油田建设公司 Portable vacuum leak detector for weld seams on pipeline
SU1765740A1 (en) * 1990-04-17 1992-09-30 Л.В.Раков, Г.Ф.Комаров и Г.В.Раков Superimposed chamber
CN201130078Y (en) * 2007-12-21 2008-10-08 广州中船黄埔造船有限公司 Weld joint close test vacuum device
CN101706350A (en) * 2009-11-30 2010-05-12 广州文冲船厂有限责任公司 Device for testing airtightness of weld joint on ship surface and using method thereof
CN103115737A (en) * 2013-01-20 2013-05-22 肖栋 Pipe welding opening detector
CN203414242U (en) * 2013-07-12 2014-01-29 上海船厂船舶有限公司 Air-tight test negative pressure cover

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57169648A (en) * 1981-04-13 1982-10-19 Furukawa Electric Co Ltd:The Inspecting method for pipe
KR20120004206U (en) * 2010-12-03 2012-06-13 (주)인스펙트 Vacuum test device for testing leakage of steel welding line

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2033900U (en) * 1987-12-18 1989-03-08 大庆石油管理局油田建设公司 Portable vacuum leak detector for weld seams on pipeline
SU1765740A1 (en) * 1990-04-17 1992-09-30 Л.В.Раков, Г.Ф.Комаров и Г.В.Раков Superimposed chamber
CN201130078Y (en) * 2007-12-21 2008-10-08 广州中船黄埔造船有限公司 Weld joint close test vacuum device
CN101706350A (en) * 2009-11-30 2010-05-12 广州文冲船厂有限责任公司 Device for testing airtightness of weld joint on ship surface and using method thereof
CN103115737A (en) * 2013-01-20 2013-05-22 肖栋 Pipe welding opening detector
CN203414242U (en) * 2013-07-12 2014-01-29 上海船厂船舶有限公司 Air-tight test negative pressure cover

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