CN203629761U - Gas pressure reduction apparatus dedicated to vacuum leak detection - Google Patents

Gas pressure reduction apparatus dedicated to vacuum leak detection Download PDF

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Publication number
CN203629761U
CN203629761U CN201320808929.8U CN201320808929U CN203629761U CN 203629761 U CN203629761 U CN 203629761U CN 201320808929 U CN201320808929 U CN 201320808929U CN 203629761 U CN203629761 U CN 203629761U
Authority
CN
China
Prior art keywords
helium
gas
pressure reduction
extra heavy
heavy pipe
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 - Fee Related
Application number
CN201320808929.8U
Other languages
Chinese (zh)
Inventor
李亚杰
冯贵全
靳朝阳
薛键
庄光法
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.)
CNNC Tianjin Machinery Co Ltd
Original Assignee
CNNC Tianjin Machinery Co Ltd
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 CNNC Tianjin Machinery Co Ltd filed Critical CNNC Tianjin Machinery Co Ltd
Priority to CN201320808929.8U priority Critical patent/CN203629761U/en
Application granted granted Critical
Publication of CN203629761U publication Critical patent/CN203629761U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a gas pressure reduction apparatus dedicated to vacuum leak detection and belongs to an apparatus for discharging compressed gas from a pressure vessel. The gas pressure reduction apparatus comprises a helium tank, a throttle valve, and a spray gun. Thick pipes and thin pipes are installed between the helium tank and the throttle valve. The gas outlet of the helium tank and the gas inlet of the throttle valve are connected with the thick pipes. The thick pipes and the thin pipes are arranged alternately. The spray gun is connected with the gas outlet of the throttle valve. Helium pressure can be effectively reduced by the mechanically-structural pressure reduction apparatus such that a large waste of helium is reduced. The throttle valve may further adjust helium flowed out of the gas pressure reduction apparatus in order that the gas pressure reduction apparatus satisfies normal use demand. The gas pressure reduction apparatus is easy to manufacture, low in cost, and widely used for reducing the pressure of various gases.

Description

Vacuum leak hunting special gas reliever
Technical field
The utility model belongs to from the equipment of releasing compressed gas in pressure vessel, is specifically related to a kind of vacuum leak hunting special gas reliever.
Background technology
For the higher metallic element of sealing requirements, need to detect its leak rate, conventionally adopt helium leak detection mass spectrometer to detect.And from helium tank directly the helium of output often pressure is larger, as being directly connected to spray gun, can cause the significant wastage of helium.
Conventional decompression method is between helium tank and spray gun, directly to add the devices such as throttling valve, air bag at present.Add throttling valve and can slightly reduce helium pressure, but still larger through the helium pressure of spray gun ejection, waste more serious.When airbag apparatus is full of helium, can normally use, but remain when few when helium, intracapsular pressure is just difficult to maintain use, will cause the waste of helium, and airbag apparatus is also inconvenient to use in addition.Therefore need a kind of reliever of physical construction, by this device, helium pressure can effectively reduce to and meet the pressure using, and reduces the waste of helium.
Utility model content
The shortcoming of proposition of the present utility model helium serious waste when overcoming the vacuum leak hunting existing in prior art proposes, and its objective is a kind of vacuum leak hunting special gas reliever is provided.
The technical solution of the utility model is:
A kind of vacuum leak hunting special gas reliever, comprise helium tank, throttling valve and spray gun, extra heavy pipe and tubule are installed between described helium tank and throttling valve, and the gas vent of helium tank is all connected extra heavy pipe with the gas access of throttling valve, and extra heavy pipe and tubule are arranged in the mode of extra heavy pipe-tubule-extra heavy pipe; Described spray gun is connected with the gas vent of throttling valve.
The internal diameter of described extra heavy pipe and tubule is than being 3:1.
Described extra heavy pipe has three sections, and tubule has two sections.
The concentric reduced pipe that described extra heavy pipe and tubule are formed in one.
The beneficial effects of the utility model are:
The utility model adopts the connected physical construction reliever of extra heavy pipe tubule, helium pressure can effectively reduce, by helium tank top hole pressure be decreased to can usable range in, the helium that throttling valve can further regulate reliever to flow out, be adjusted to best working pressure so that it meets and normal uses needs, thereby two kinds of modes combine and have reduced the larger waste of helium.The utility model can be used for vacuum leak hunting helium decompression, manufactures easyly, and cost is lower, and can promote the use of the decompression field of other gases.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model vacuum leak hunting special gas reliever.
Wherein:
1, helium tank 2, extra heavy pipe
3, tubule 4, throttling valve
5, spray gun.
Embodiment
Below, with reference to drawings and Examples, a kind of vacuum leak hunting special gas of the utility model reliever is elaborated:
As shown in Figure 1, a kind of vacuum leak hunting special gas reliever, comprise helium tank 1, throttling valve 4 and spray gun 5, extra heavy pipe 2 and tubule 3 are installed between described helium tank 1 and throttling valve 4, the gas vent of helium tank 1 is all connected extra heavy pipe 2 with the gas access of throttling valve 4, and extra heavy pipe 2 and tubule 3 are arranged in the mode of extra heavy pipe 2-tubule 3-extra heavy pipe 2; Described spray gun 5 is connected with the gas vent of throttling valve 4.
The internal diameter of described extra heavy pipe 2 and tubule 3 is than being 3:1.
Described extra heavy pipe 2 has three sections, and tubule 3 has two sections.
The concentric reduced pipe that described extra heavy pipe 2 and tubule 3 are formed in one.
Gas in helium tank 1 reaches an atmospheric pressure left and right after the reduction valve decompression of helium tank 1 self, enters first paragraph extra heavy pipe 2, and first paragraph extra heavy pipe 2 is connected with first paragraph tubule 3, can realize helium tank top hole pressure and once reduce pressure; First paragraph tubule 3 is connected with second segment extra heavy pipe 2 again, and then two sections of extra heavy pipes 2 are connected with second segment tubule 3 and can realize the secondary decompression of gas; Secondary depressed gas reaches 0.1 ~ 0.2 atmospheric pressure, then regulates through throttling valve 4, can obtain applicable gaseous tension and flow to carry out vacuum leak hunting.
The utility model adopts the connected physical construction reliever of extra heavy pipe tubule, helium pressure can effectively reduce, by helium tank top hole pressure be decreased to can usable range in, the helium that throttling valve can further regulate reliever to flow out, be adjusted to best working pressure so that it meets and normal uses needs, thereby two kinds of modes combine and have reduced the larger waste of helium.The utility model can be used for vacuum leak hunting helium decompression, manufactures easyly, and cost is lower, and can promote the use of the decompression field of other gases.

Claims (4)

1. a vacuum leak hunting special gas reliever, comprise helium tank (1), throttling valve (4) and spray gun (5), it is characterized in that: extra heavy pipe (2) and tubule (3) are installed between described helium tank (1) and throttling valve (4), the gas vent of helium tank (1) is all connected extra heavy pipe (2) with the gas access of throttling valve (4), and extra heavy pipe (2) and tubule (3) are arranged in the mode of extra heavy pipe (2)-tubule (3)-extra heavy pipe (2); Described spray gun (5) is connected with the gas vent of throttling valve (4).
2. a kind of vacuum leak hunting special gas reliever according to claim 1, is characterized in that: the internal diameter of described extra heavy pipe (2) and tubule (3) is than being 3:1.
3. a kind of vacuum leak hunting special gas reliever according to claim 1, is characterized in that: described extra heavy pipe (2) has three sections, and tubule (3) has two sections.
4. a kind of vacuum leak hunting special gas reliever according to claim 1, is characterized in that: the concentric reduced pipe that described extra heavy pipe (2) and tubule (3) are formed in one.
CN201320808929.8U 2013-12-11 2013-12-11 Gas pressure reduction apparatus dedicated to vacuum leak detection Expired - Fee Related CN203629761U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320808929.8U CN203629761U (en) 2013-12-11 2013-12-11 Gas pressure reduction apparatus dedicated to vacuum leak detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320808929.8U CN203629761U (en) 2013-12-11 2013-12-11 Gas pressure reduction apparatus dedicated to vacuum leak detection

Publications (1)

Publication Number Publication Date
CN203629761U true CN203629761U (en) 2014-06-04

Family

ID=50816227

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320808929.8U Expired - Fee Related CN203629761U (en) 2013-12-11 2013-12-11 Gas pressure reduction apparatus dedicated to vacuum leak detection

Country Status (1)

Country Link
CN (1) CN203629761U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110146231A (en) * 2019-06-17 2019-08-20 蚌埠兴创电子科技有限公司 A kind of helium Mass Spectrometer Method device for saving helium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110146231A (en) * 2019-06-17 2019-08-20 蚌埠兴创电子科技有限公司 A kind of helium Mass Spectrometer Method device for saving helium

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140604

Termination date: 20191211

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