CN216433418U

CN216433418U - Helium mass spectrometer leak detection device of bellows

Info

Publication number: CN216433418U
Application number: CN202123364657.0U
Authority: CN
Inventors: 吴逸帆; 宋方超; 孙超
Original assignee: HANGZHOU WANQUAN METAL HOSE CO Ltd
Current assignee: HANGZHOU WANQUAN METAL HOSE CO Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-03
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a pipeline leak hunting field, in particular to, relate to a helium mass spectrum leak hunting device of bellows, including base and detection seat, the base with detect the seat and cup joint and form the vacuum chamber, be equipped with the connecting hole that supplies the bellows to connect on the base, the connecting hole with the vacuum chamber is linked together, the connecting hole is connected with air pump and gas holder, the air pump includes second inlet end and second end of giving vent to anger, the gas holder includes the fourth end of giving vent to anger, the second inlet end with the fourth end of giving vent to anger all is linked together with the connecting hole, be equipped with the air supply solenoid valve between the fourth end of giving vent to anger and the connecting hole, the vacuum chamber is connected with the vacuum pump, the vacuum pump includes first inlet end and first end of giving vent to anger; the utility model aims at overcoming the not enough of prior art and providing a helium mass spectrum leak hunting device of bellows reduces the helium quantity when detecting the gas tightness of bellows.

Description

Helium mass spectrometer leak detection device of bellows

Technical Field

The utility model relates to a pipeline leak hunting field especially, relates to a helium mass spectrum leak hunting device of bellows.

Background

Pipelines are commonly used to transport gases, liquids or fluids with solid particles. The closure of the pipeline must therefore be checked during the production of the pipeline.

The pipeline leak hunting is different according to the material and the diameter of pipeline, the detection method who adopts is also different, wherein the bellows diameter is less and take place to buckle easily, adopt the gas tightness leak hunting usually, adopt bellows evacuation usually among the prior art, place the bellows in the helium and carry out the gas tightness through whether contain the helium to the bellows in the detection bellows inside, and this kind of mode is comparatively extravagant helium, owing to constantly getting and putting the bellows when detecting a large amount of bellows, helium purity can reduce, and then lead to the testing result inaccurate, how to design the helium mass spectrum leak hunting device of a bellows, can reduce the helium quantity when detecting the gas tightness of bellows and still need constantly to study.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is to overcome the deficiencies of the prior art and to provide a helium mass spectrometer leak detection device for corrugated pipes, which can reduce the usage amount of helium gas when detecting the airtightness of the corrugated pipes.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a helium mass spectrum leak hunting device of bellows, includes the base and detects the seat, the base with it cup joints and forms real empty room to detect the seat, be equipped with the connecting hole that supplies the bellows to connect on the base, the connecting hole with real empty room is linked together, the connecting hole is connected with air pump and gas holder, air pump includes that second inlet end and second give vent to anger the end, the gas holder includes the fourth end of giving vent to anger, the second inlet end with the fourth give vent to anger the end all with the connecting hole is linked together, the fourth give vent to anger the end with be equipped with the air feed solenoid valve between the connecting hole, real empty room is connected with the vacuum pump, the vacuum pump includes first inlet end and the first end of giving vent to anger, first inlet end with real empty room is linked together, the first end of giving vent to anger is connected with gas sensor.

Compare prior art, the utility model has the advantages that:

the utility model discloses when needing to carry out the gas tightness to the bellows and examining time measuring, seal bellows one end, be connected the bellows other end with the connecting hole, the work of air pump is through second inlet end and connecting hole with the inside evacuation of bellows, the solenoid valve of supplying gas opens, because the atmospheric pressure difference inside gas holder and the bellows, the inside helium of gas holder gets into inside the bellows, the base with detect the seat cup joint and seal the vacuum chamber, vacuum pump work is given gas sensor through first inlet end and first outlet end with the inside air discharge of vacuum chamber, and the vacuum chamber is inside to be pumped into vacuum, if the bellows leaks gas, because the atmospheric pressure difference inside vacuum chamber and bellows, the inside helium of bellows gets into to flow through vacuum chamber, first inlet end, vacuum pump, first outlet end and gas sensor, and gas sensor detects the helium, and gas sensor reports to the police; if the corrugated pipe is airtight, the gas sensor cannot detect helium, and the gas sensor does not give an alarm.

Further, the connecting hole still is connected with the compressor, the compressor includes the third inlet end, the third inlet end with the connecting hole is linked together and is equipped with the closed solenoid valve between the two, realizes retrieving the inside remaining helium of bellows through setting up of compressor.

Further, the compressor further comprises a third air outlet end, the gas storage tank further comprises a fourth air inlet end, the third air outlet end is communicated with the fourth air inlet end, and the helium collected by the compressor is collected into the gas storage tank by communicating the third air outlet end with the fourth air inlet end.

Furthermore, a hydraulic cylinder is arranged on one of the base and the detection seat, the output end of the hydraulic cylinder is fixedly connected with the other one of the base and the detection seat, and the relative movement of the base and the detection seat is controlled through the arrangement of the hydraulic cylinder.

Furthermore, a sealing boss is arranged on the base, the connecting hole is formed in the sealing boss, the sealing boss and the detection seat are in sleeve connection and sealed to form the vacuum chamber, the edge of the sealing boss is made of rubber, and the vacuum chamber is sealed through the sealing boss.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic partial cross-sectional side view of the test seat;

fig. 3 is a front view schematically illustrating the present invention;

FIG. 4 is a schematic partial cross-sectional side view of the test seat;

FIG. 5 is a schematic partial cross-sectional side view of the base;

fig. 6 is a schematic view of a partial cross-sectional view of the depression angle of the present invention.

Reference numerals: a base 10, a cleaning seat; a detection seat 11 and a drainage seam; a hydraulic cylinder 12, a reset chute; a vacuum chamber 13, a spring; a sealing boss 14 and a reset sliding block; 15. a clamping block; 16. cleaning the tank; 17. a water injection hole; 18. a drain hole; 19. a sealing plug; a first air inlet end 21 and a connecting seat; a first outlet end 22, a baffle; gas sensor 23, cleaning plate; 24. a cleaning head; attachment holes 30, winding rollers; an exhaust pump 31, a holding groove; air tank 32, driving motor.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Referring to fig. 1, 2, 5 and 6, the present embodiment provides a helium mass spectrometer leak detection apparatus for a bellows, which reduces the amount of helium used when detecting the airtightness of the bellows.

Including base 10 and detection seat 11, base 10 with it cup joints and forms vacuum chamber 13 to detect seat 11, be equipped with the connecting hole 30 that supplies the bellows to connect on the base 10, connecting hole 30 with vacuum chamber 13 is linked together, connecting hole 30 is connected with air pump 31 and gas holder 32, air pump 31 includes that second inlet end 34 and second give vent to anger the end 35, gas holder 32 includes fourth end 39 of giving vent to anger, second inlet end 34 with fourth end 39 of giving vent to anger all with connecting hole 30 is linked together, fourth end 39 of giving vent to anger with be equipped with air feed solenoid valve 40 between the connecting hole 30, vacuum chamber 13 is connected with vacuum pump 20, vacuum pump 20 includes first inlet end 21 and the first end 22 of giving vent to anger, first inlet end 21 with vacuum chamber 13 is linked together, first end 22 of giving vent to anger is connected with gas sensor 23.

Specifically, the method comprises the following steps:

referring to fig. 2 and 5, in order to recover the residual helium in the corrugated pipe, the connecting hole 30 is further connected to a compressor 33, the compressor 33 includes a third air inlet end 36, the third air inlet end 36 is communicated with the connecting hole 30, a closed electromagnetic valve 41 is arranged between the third air inlet end 36 and the connecting hole 30, and the residual helium in the corrugated pipe is recovered through the compressor 33.

Referring to fig. 2 and 5, in order to store the helium gas collected by the compressor 33, the compressor 33 further includes a third gas outlet end 37, the gas storage tank 32 further includes a fourth gas inlet end 38, the third gas outlet end 37 is communicated with the fourth gas inlet end 38, and the helium gas collected by the compressor 33 is collected into the gas storage tank 32 by communicating the third gas outlet end 37 with the fourth gas inlet end 38.

Referring to fig. 1 and 2, in order to control the relative movement between the base 10 and the detection seat 11, a hydraulic cylinder 12 is disposed on one of the base 10 and the detection seat 11, an output end of the hydraulic cylinder 12 is fixedly connected to the other, and the relative movement between the base 10 and the detection seat 11 is controlled by the arrangement of the hydraulic cylinder 12.

Referring to fig. 2 and 4, in order to seal the vacuum chamber 13, a sealing boss 14 is provided on the base 10, the connection hole 30 is provided on the sealing boss 14, the sealing boss 14 and the detection seat 11 are sleeved and sealed to form the vacuum chamber 13, the edge of the sealing boss is made of rubber, and the sealing of the vacuum chamber 13 is achieved by the arrangement of the sealing boss 14.

The implementation principle is as follows: when the air tightness of the corrugated pipe needs to be detected, one end of the corrugated pipe is closed, the other end of the corrugated pipe is sleeved with the connecting hole 30, the inside of the corrugated pipe is vacuumized by the exhaust pump 31 through the second air inlet end 34 and the connecting hole 30, the air supply electromagnetic valve 40 is opened, helium in the air storage tank 32 enters the corrugated pipe due to the air pressure difference between the air storage tank 32 and the corrugated pipe, the hydraulic cylinder 12 controls the detection seat 11 and the base 10 to be close to each other, the base 10 and the detection seat 11 are sleeved with each other to seal the vacuum chamber 13, the vacuum pump 20 works to discharge the air in the vacuum chamber 13 to the gas sensor 23 through the first air inlet end 21 and the first air outlet end 22, the inside of the vacuum chamber 13 is vacuumized, if the corrugated pipe leaks air, the helium in the corrugated pipe enters the vacuum chamber 13, flows through the first air inlet end 21, the vacuum pump 20, the first air outlet end 22 and the gas sensor 23 due to the air pressure difference between the vacuum chamber 13 and the corrugated pipe, the gas sensor 23 detects helium, and the gas sensor 23 gives an alarm; if the bellows is airtight, the gas sensor 23 cannot detect helium, and the gas sensor 23 does not give an alarm.

After the corrugated pipe detection is completed, the air supply electromagnetic valve 40 is closed, the closing electromagnetic valve 41 is opened, the compressor 33 works to pump out helium in the corrugated pipe through the third air inlet end 36 and the third air outlet end 37 and compress the helium into the air storage tank 32, and the helium recovery is completed.

Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the utility model discloses the scope of claiming.

Claims

1. The utility model provides a helium mass spectrum leak hunting device of bellows, includes base (10) and detects seat (11), base (10) with detect seat (11) and cup joint and form vacuum chamber (13), its characterized in that, be equipped with connecting hole (30) that supply the bellows to connect on base (10), connecting hole (30) with vacuum chamber (13) are linked together, connecting hole (30) are connected with air pump (31) and gas holder (32), air pump (31) include second inlet end (34) and second end (35) of giving vent to anger, gas holder (32) include fourth end (39) of giving vent to anger, second inlet end (34) with fourth end (39) of giving vent to anger all with connecting hole (30) are linked together, fourth end (39) of giving vent to anger with be equipped with between connecting hole (30) and supply gas solenoid valve (40), vacuum chamber (13) are connected with vacuum pump (20), the vacuum pump (20) comprises a first air inlet end (21) and a first air outlet end (22), the first air inlet end (21) is communicated with the vacuum chamber (13), and the first air outlet end (22) is connected with a gas sensor (23).

2. Helium mass spectrometer leak detection device according to claim 1, characterized in that a compressor (33) is further connected to said connection hole (30), said compressor (33) comprises a third inlet end (36), said third inlet end (36) is connected to said connection hole (30) and a closing solenoid valve (41) is arranged between said third inlet end and said connection hole.

3. A bellows helium mass spectrometer leak detection apparatus as claimed in claim 2, wherein said compressor (33) further comprises a third outlet port (37), said gas reservoir (32) further comprises a fourth inlet port (38), said third outlet port (37) being in communication with said fourth inlet port (38).

4. Helium mass spectrometer leak detection device according to claim 1, characterized in that one of said base (10) and said detection seat (11) is provided with a hydraulic cylinder (12), and the output end of said hydraulic cylinder (12) is fixedly connected with the other.

5. The helium mass spectrometer leak detection device of the corrugated pipe as claimed in claim 1, wherein a sealing boss (14) is provided on the base (10), the connection hole (30) is provided on the sealing boss (14), and the sealing boss (14) and the vacuum chamber (13) are sleeved to seal the vacuum chamber (13).