CN214583900U

CN214583900U - Gas leakage detection device

Info

Publication number: CN214583900U
Application number: CN202120953769.0U
Authority: CN
Inventors: 张帅; 仇家奥; 邵宇; 于议; 周翔; 孔德文
Original assignee: Jiangsu Vocational College of Information Technology
Current assignee: Wuxi Ailite Engineering Equipment Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-11-02
Anticipated expiration: 2031-05-07

Abstract

The utility model relates to the technical field of gas detection devices, in particular to a gas leakage detection device, which comprises a gas inlet interface and a device to be detected, wherein a gas storage tank is arranged between the gas inlet interface and the device to be detected, a first needle valve is arranged between the gas storage tank and the gas inlet interface, one end of the first needle valve, which is far away from the gas inlet interface, is provided with a first check valve, two sides of the first check valve are respectively communicated with the gas storage tank and the gas inlet interface, a first pressure gauge is arranged on a connecting pipeline between the first check valve and the gas storage tank, one side of the gas storage tank, which is far away from the first check valve, is provided with a first safety valve, one end of the first safety valve, which is far away from the gas storage tank, is provided with a pressure reducing valve, the first needle valve, the first check valve, the first pressure gauge and the first safety valve form a first detection mechanism, one end of the pressure reducing valve, which is far away from the first safety valve, is provided with a filter, and two ends of the filter are provided with second detection mechanisms.

Description

Gas leakage detection device

Technical Field

The utility model relates to a gaseous detection device technical field especially relates to a gas leakage detection device.

Background

In the pneumatic detection field, the mode of common detection gas leakage is to paint the leakage department through soapy water, can find soap bubble when taking place to leak and destroy, and this kind of detection mode is too simple, can only detect the leakage that exposes equipment surface, can't in time discover the inside leakage that exists of equipment to can't in time carry out effective processing.

Therefore, a gas leakage detection device is needed to be provided, the device can be tested for leakage by accessing the tested device and detecting the variation value of pressure, the testing mode is more intelligent and convenient, the operation is simple, and the device is convenient for field personnel to use.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming the defects of the prior art, the utility model aims to provide a gas leakage detection device, it can in time detect atmospheric pressure everywhere in the equipment to the advantage of the condition that gas appears leaking is dealt with.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a gas leakage detection device comprises a gas inlet interface and equipment to be detected, a gas storage tank is arranged between the gas inlet interface and the equipment to be detected, a first needle valve is arranged between the air storage tank and the air inlet connector, a first check valve is arranged at one end of the first needle valve far away from the air inlet connector, two sides of the first one-way valve are respectively communicated with the air storage tank and the air inlet interface, a first pressure gauge is arranged on a connecting pipeline between the first one-way valve and the air storage tank, a first safety valve is arranged on one side of the gas storage tank far away from the first one-way valve, a pressure reducing valve is arranged at one end of the first safety valve far away from the gas storage tank, the first needle valve, the first check valve, the first pressure gauge and the first safety valve form a first detection mechanism, and a filter is arranged at one end of the pressure reducing valve, which is far away from the first safety valve, and second detection mechanisms are arranged at two ends of the filter.

Further, second detection mechanism includes second manometer, second relief valve, second check valve, second needle valve, the second relief valve is installed between filter and relief pressure valve, the second manometer is installed between relief pressure valve and second relief valve, second needle valve, second check valve are installed between filter and the equipment that awaits measuring, the second needle valve is installed with the filter lug connection, the second check valve is installed between equipment that awaits measuring and second needle valve, install the third manometer between equipment that awaits measuring and the second check valve.

Further, the model of relief pressure valve is AFR1500, the model of first manometer, second manometer is GF-40F, the model of first needle valve, second needle valve is NV 12.

To sum up, the utility model discloses following beneficial effect has:

the utility model discloses an adopt the measuring device of the gas leakage that the pressure signal detected, need not to unpack apart the gas supply line of the equipment under test during the use, only need with its measurement gas port insert the gas vent of the equipment under test can, the adaptability of industrial field is stronger, the operation is simpler, the precision is higher; the utility model discloses a two relief valve structures have both ensured this measuring device's safe in utilization, have also ensured equipment under test's gas safety, and application safety factor is higher.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:

fig. 1 is a schematic connection diagram of the present invention.

In the figure, 1, an air inlet interface; 2. a first needle valve; 3. a first check valve; 4. a first pressure gauge; 5. a gas storage tank; 6. a first safety valve; 7. a pressure reducing valve; 8. a second pressure gauge; 9. a second relief valve; 10. a filter; 11. a second needle valve; 12. a second one-way valve; 13. a third pressure gauge; 14. and (5) the tested device.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1: a gas leakage detection device comprises an air inlet interface 1 and a device to be detected, wherein an air storage tank 5 is arranged between the air inlet interface 1 and the device to be detected, a first needle valve 2 is arranged between the air storage tank 5 and the air inlet interface 1, a first check valve 3 is arranged at one end, far away from the air inlet interface 1, of the first needle valve 2, two sides of the first check valve 3 are respectively communicated with the air storage tank 5 and the air inlet interface 1, a first pressure gauge 4 is arranged on a connecting pipeline between the first check valve 3 and the air storage tank 5, a first safety valve 6 is arranged at one side, far away from the first check valve 3, of the air storage tank 5, a pressure reducing valve 7, the first needle valve 2 and the first check valve 3 are arranged at one end, far away from the air storage tank 5, of the first safety valve 6, the first pressure gauge 4 and the first safety valve 6 form a first detection mechanism, one end of the pressure reducing valve 7, which is far away from the first safety valve 6, is provided with a filter 10, and two ends of the filter 10 are provided with second detection mechanisms.

As shown in fig. 1, the second detection mechanism includes a second pressure gauge 8, a second safety valve 9, a second check valve 12, a second needle valve 11, the second safety valve 9 is installed between the filter 10 and the pressure reducing valve 7, the second pressure gauge 8 is installed between the pressure reducing valve 7 and the second safety valve 9, the second needle valve 11 and the second check valve 12 are installed between the filter 10 and the device to be tested, the second needle valve 11 is directly connected with the filter 10 for installation, the second check valve 12 is installed between the device to be tested and the second needle valve 11, and a third pressure gauge 13 is installed between the device to be tested and the second check valve 12.

As shown in fig. 1, on the whole, the first pressure gauge 4 is used for measuring the pressure in the gas storage tank 5, the second pressure gauge 8 is used for measuring the pressure of the gas after passing through the pressure reducing valve 7, the third pressure gauge 13 displays the output pressure, the first safety valve 6 ensures that the pressure of the gas storage tank 5 does not exceed the limit value, the second safety valve 9 ensures that the pressure entering the tested device does not exceed the gas pressure safety value of the tested device, and the test is safer.

As shown in fig. 1, the type of the pressure reducing valve 7 is AFR1500, the types of the first pressure gauge 4 and the second pressure gauge 8 are GF-40F, and the types of the first needle valve 2 and the second needle valve 11 are NV 12.

The utility model discloses an among the embodiment, the air compressor machine connects the air inlet connector of this device, lead-in this device inside gas holder 5 through first check valve 3, first check valve 3 here plays the one-way effect of admitting air, guarantee that 5 interior gas of gas holder can not reveal to the outside, when the gas storage pressure gauge indicated value reaches 0.7MPa, close the stop valve, cut outside inflation channel, the inside compressed air that has just stored pressure for 0.7MPa of sealed tester this moment, for safety, avoid 5 inside pressure of gas holder unlimited increases, 5 rearmounted relief valves of gas holder, automatic pressure release after pressure exceedes maximum service pressure when pressure.

The storage pressure of the air storage tank 5 is 0.7MPa, the pressure index of the tested device 14 only needs 0.1MPa, if the pressure storage tank 5 is directly communicated with the tested device 14, the pressure reducing valve 7 and the second pressure gauge 8 are arranged behind the air storage tank 5, the pressure indicated by the regulated pressure is a pressure value required by a test by regulating the pressure reducing valve 7, a pressure stabilizing section is formed between the pressure reducing valve 7 and the filter 10 to play a protection role, meanwhile, the second safety valve 9 is also arranged behind the pressure regulating valve, and when the pressure exceeds 0.125MPa, the pressure is automatically released.

After the pressure adjustment is finished, the output stop valve is opened, gas in the gas storage tank 5 of the sealing tester can be inflated to the tested device 14 through the second check valve 12 at the tail end, when the indicated value of the output third pressure gauge 13 reaches 0.08MPa, the output stop valve is closed, the reducing valve 7 is reset to zero and locked, the gas output is stopped, at the moment, the rear end of the second check valve 12 and the tested device 14 form a closed cavity, and the fixed pressure (0.08 MPa) is kept.

And after the specified time, recording and outputting an indicated value of the pressure gauge, and judging the air tightness of the tested equipment according to the pressure change.

The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.

Claims

1. The utility model provides a gas leakage detection device, includes air inlet interface (1) and equipment under test, its characterized in that: install gas holder (5) between interface (1) and the equipment that awaits measuring admits air, install first needle valve (2) between gas holder (5) and the interface (1) that admits air, first needle valve (2) are kept away from the one end of admitting air interface (1) and are installed first check valve (3), the both sides of first check valve (3) communicate with gas holder (5), interface (1) admits air respectively, install first manometer (4) on the connecting line between first check valve (3) and gas holder (5), first relief valve (6) are installed to the one side that first check valve (3) were kept away from in gas holder (5), relief valve (7) are installed to the one end that gas holder (5) were kept away from in first relief valve (6), first needle valve (2), first check valve (3), first manometer (4), first relief valve (6) have constituteed first detection mechanism, and a filter (10) is arranged at one end, far away from the first safety valve (6), of the pressure reducing valve (7), and second detection mechanisms are arranged at two ends of the filter (10).

2. A gas leak detecting device according to claim 1, characterized in that: second detection mechanism includes second manometer (8), second relief valve (9), second check valve (12), second needle valve (11), install between filter (10) and relief pressure valve (7) second relief valve (9), install between relief pressure valve (7) and second relief valve (9) second manometer (8), second needle valve (11), second check valve (12) are installed between filter (10) and the equipment that awaits measuring, second needle valve (11) and filter (10) lug connection installation, second check valve (12) are installed between equipment that awaits measuring and second needle valve (11), install third manometer (13) between equipment that awaits measuring and second check valve (12).

3. A gas leak detecting device according to claim 2, characterized in that: the model of relief pressure valve (7) is AFR1500, the model of first manometer (4), second manometer (8) is GF-40F, the model of first needle valve (2), second needle valve (11) is NV 12.