CN214149731U

CN214149731U - Leak hunting system of airtight pot body

Info

Publication number: CN214149731U
Application number: CN202120220607.6U
Authority: CN
Inventors: 林建江; 杨立锋
Original assignee: Ningbo Senna Electric Heating Technology Co ltd
Current assignee: Ningbo Senna Electric Heating Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-07
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a system of leaking hunting of the airtight pot body for the leak hunting of the airtight pot body, including main gas flow pipeline and respectively with two gas flow pipeline that main gas flow pipeline connects, gas supply unit and air-vent valve have been arranged in proper order on the main gas flow pipeline, two the last check valve and the sealed tank body of all having arranged in proper order of gas flow pipeline, and two the sealed tank body is connected with differential pressure sensor respectively, the airtight pot body place in the sealed tank is internal. The utility model has the advantages that: is suitable for double-layer pan bodies; the measuring is accurate, and the method is suitable for the pan body with smaller leakage value.

Description

Leak hunting system of airtight pot body

Technical Field

The utility model belongs to the technical field of the technique of leak hunting device and specifically relates to a leak hunting system of airtight pot body.

Background

The existing leakage detection device generally adopts a gas detection method or a water detection method. According to the conventional gas detection method, after a certain amount of gas is filled into the pot body, pressure maintaining is carried out for a period of time, and whether a product leaks or not is judged according to pressure drop. This method is generally only applicable to single-layer pots and does not have a closed cavity. Since the first precision of the method is not enough, the second method can judge whether the inner cup leaks or not, but can not judge whether the outer cup leaks or not.

The conventional water measuring method generally adopts hot water bubbles or adds pressure to water, generally large leakage can be checked, small leakage cannot be distinguished, meanwhile, leakage detection is easy, and meanwhile, the risk that water permeates into the interior of a pot body exists.

Therefore, a leak detection system suitable for a closed pot (double-layer pot) is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a leak hunting system of the airtight pot body according to above-mentioned prior art not enough, put into two sealed tank bodies and ventilate respectively with the airtight pot body of standard airtight pot body and the airtight pot body that awaits measuring, two sealed tank bodies are connected with differential pressure sensor, and the airtight condition of the airtight pot body that judges to await measuring is through differential pressure sensor's reading.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

the utility model provides a leak hunting system of airtight pot body for the leak hunting of airtight pot body which characterized in that: the pressure-regulating type boiler comprises a main air flow pipeline and two gas flow dividing pipelines respectively connected with the main air flow pipeline, wherein an air supply device and a pressure regulating valve are sequentially arranged on the main air flow pipeline, a one-way valve and two sealing tank bodies are sequentially arranged on the two gas flow dividing pipelines, the two sealing tank bodies are respectively connected with a differential pressure sensor, and the sealing tank body is placed in the sealing tank body.

The sealed tank body comprises a sealed tank upper part and a sealed tank lower part, and the sealed tank upper part and the sealed tank lower part are sealed through an O-shaped sealing ring.

And a filler is arranged in the sealed pot body and is arranged along the outer contour direction of the sealed pot body.

And an air guide groove is reserved between the filler and the sealed tank body.

The utility model has the advantages that: is suitable for double-layer pan bodies; the measuring is accurate, and the method is suitable for the pan body with smaller leakage value.

Drawings

FIG. 1 is a schematic structural view of a leak detection system of the middle-sealed pot body of the utility model;

FIG. 2 is a schematic structural view of a middle sealed tank of the present invention;

FIG. 3 is a cross-sectional view of the lower part of the middle sealing tank body of the present invention;

FIG. 4 is an enlarged view of A in FIG. 3;

fig. 5 is an exploded view of the middle sealed tank of the present invention.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

as shown in figures 1-5, the marks 1-10 in the figures are respectively represented as a gas supply device 1, a pressure regulating valve 2, a one-way valve 3, a sealed tank body 4, an upper part 4-1 of the sealed tank, a lower part 4-2 of the sealed tank, an O-shaped sealing ring 4-3, a differential pressure sensor 5, a filler 6, a first filler 6-1, a second filler 6-2, a third filler 6-3, a gas guide groove 7, a standard sealed pot body 8, a sealed pot body 9 to be measured and a sealed cavity 10.

Example (b): as shown in fig. 1 to 5, the present embodiment relates to a leak detection system for a closed pot, which mainly includes a main air flow pipeline and two branch air flow pipelines, wherein the two branch air flow pipelines are respectively connected to the main air flow pipeline, wherein an air supply device 1 and a pressure regulating valve 2 are sequentially arranged on the main air flow pipeline, and in the present embodiment, the pressure regulating valve 2 can compress the air flow transmitted by the air supply device 1 to 20 pa; the two gas distribution pipelines are sequentially provided with a one-way valve 3 and a sealed tank body 4, and the two sealed tank bodies 4 are respectively connected with a differential pressure sensor 5. The standard airtight pot body 8 and the airtight pot body 9 to be detected are respectively placed into the two airtight pot bodies 4, quantitative gas is introduced into the two airtight pot bodies 4, the air pressure of the two airtight pot bodies 4 is judged through the reading of the differential pressure sensor 5, and if the pressure difference between the containing cavity of the airtight pot body 9 to be detected and the pressure difference between the containing cavity of the standard airtight pot body 8 exceeds a preset value, the airtight pot body 9 to be detected can be judged to be leaked. In this embodiment, the closed pot body (the standard closed pot body 8 and the closed pot body 9 to be measured) is a double-layer pot body, and includes an outer cup and an inner cup, and a sealed cavity 10 is formed between the outer cup and the inner cup.

As shown in figure 2, the sealed tank body 4 comprises a sealed tank upper part 4-1 and a sealed tank lower part 4-2, the materials of the sealed tank upper part 4-1 and the sealed tank lower part 4-2 are all alloy aluminum, and the sealed tank upper part 4-1 and the sealed tank lower part 4-2 are sealed through an O-shaped sealing ring 4-3. The inside of the sealed tank body 4 is provided with a filler 6, the filler 6 is made of nylon, and the filler 6 is arranged along the outer contour direction of the sealed tank body (the standard sealed tank body 8 and the sealed tank body 9 to be tested), in this embodiment, the sealed tank body totally comprises three fillers 6, namely a first filler 6-1, a second filler 6-2 and a third filler 6-3, the first filler 6-1 is arranged in the inner cup of the sealed tank body, the second filler 6-2 is arranged along the circumferential direction of the outer wall of the outer cup of the sealed tank body, and the third filler 6-3 is arranged at the bottom of the outer cup of the sealed tank body.

As shown in fig. 3, 4 and 5, a gas-guiding groove 7 is left between the filler 6 and the sealed can 4. Wherein, the top of the first filler 6-1 is provided with an air guide groove 7, the side part of the second filler 6-2 is also provided with the air guide groove 7, and the side part of the third filler 6-3 is also provided with the air guide groove 7. The arrangement of the air guide groove 7 can avoid that a certain sealed tank body 4 causes the differential pressure of the two sealed tank bodies 4 because part of air permeates into the gap between the filler 6 and the sealed tank body 4, so that the air is mistakenly considered to permeate into the sealed cavity of the sealed tank body, the sealed tank body is not leaked, but is leaked into the gap between the filler 6 and the sealed tank body 4, and the misinformation is caused, and the accuracy of measurement is further improved.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.

Claims

1. The utility model provides a leak hunting system of airtight pot body for the leak hunting of airtight pot body which characterized in that: the pressure-regulating type boiler comprises a main air flow pipeline and two gas flow dividing pipelines respectively connected with the main air flow pipeline, wherein an air supply device and a pressure regulating valve are sequentially arranged on the main air flow pipeline, a one-way valve and two sealing tank bodies are sequentially arranged on the two gas flow dividing pipelines, the two sealing tank bodies are respectively connected with a differential pressure sensor, and the sealing tank body is placed in the sealing tank body.

2. The leak hunting system for the enclosed pot of claim 1, wherein: the sealed tank body comprises a sealed tank upper part and a sealed tank lower part, and the sealed tank upper part and the sealed tank lower part are sealed through an O-shaped sealing ring.

3. The leak hunting system for the enclosed pot of claim 1, wherein: and a filler is arranged in the sealed pot body and is arranged along the outer contour direction of the sealed pot body.

4. The leak hunting system for the enclosed pot of claim 3, wherein: and an air guide groove is reserved between the filler and the sealed tank body.