CN216144460U - Pressure differential meter verifying attachment - Google Patents
Pressure differential meter verifying attachment Download PDFInfo
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- CN216144460U CN216144460U CN202122085751.6U CN202122085751U CN216144460U CN 216144460 U CN216144460 U CN 216144460U CN 202122085751 U CN202122085751 U CN 202122085751U CN 216144460 U CN216144460 U CN 216144460U
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- control valve
- pressure gauge
- pipeline
- seat
- gauge
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Abstract
The utility model relates to a differential pressure gauge inspection device which comprises a gas tank, wherein the gas tank is provided with an inflation connector, the left end of the gas tank is connected with a first control valve and a first pipe joint through a pipeline, the pipeline between the first control valve and the first pipe joint is connected with a first tee joint seat through a first tee joint, the first tee joint seat is connected with a first pressure gauge and a plug, the right end of the gas tank is connected with a second control valve and a second pipe joint through a pipeline, the pipeline between the second control valve and the second pipe joint is connected with a second tee joint seat through a second tee joint, and the second tee joint seat is connected with a second pressure gauge and a pressure regulating valve. The novel multifunctional clothes hanger has the advantages of simple structure, low cost, convenience in use, safety, reliability and strong practicability.
Description
Technical Field
The utility model relates to an instrument checking device, in particular to a device for checking whether a differential pressure gauge is normal or not.
Background
During the maintenance of the gas filter, the phenomenon that the filter element of the filter is dirty, but the display value of the pressure difference meter is in a normal range is often found. The reason for this phenomenon is various, and may be that the differential pressure gauge itself has a fault, or may be that a pipeline connecting the differential pressure gauge is blocked, or other reasons.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a differential pressure gauge checking device which has the advantages of simple structure, low cost, convenience in use, safety, reliability and strong practicability.
In order to solve the problems in the prior art, the pressure difference meter inspection device provided by the utility model comprises a gas tank, wherein the gas tank is provided with an inflation connector, the left end of the gas tank is connected with a first control valve and a first pipe joint through a pipeline, the pipeline between the first control valve and the first pipe joint is connected with a first three-way seat through a first three-way head, the first three-way seat is connected with a first pressure gauge and a plug, the right end of the gas tank is connected with a second control valve and a second pipe joint through a pipeline, the pipeline between the second control valve and the second pipe joint is connected with a second three-way seat through a second three-way head, and the second three-way seat is connected with a second pressure gauge and a pressure regulating valve.
Furthermore, when the pressure difference meter inspection device is used for inspecting the pressure difference meter, the first pipe joint and the second pipe joint are correspondingly connected with two ports of the pressure difference meter through hoses respectively.
Further, the pressure difference meter inspection device is characterized in that the first control valve and the second control valve are ball valves, and the pressure regulating valve is a needle valve.
Further, the utility model provides a differential pressure gauge checking device, wherein the first pipe joint and the second pipe joint are quick-insertion pipe joints.
Furthermore, the pressure difference meter inspection device further comprises an inflator pump, and the inflator pump is used for inflating the air tank through the inflation interface.
Further, the pressure difference meter inspection device provided by the utility model further comprises a portable box, wherein the gas tank, the first three-way seat, the first pressure meter, the second three-way seat and the second pressure meter are arranged in the portable box.
Further, the pressure difference meter inspection device comprises a portable box and a box cover, wherein the box cover is hinged with the box body through a hinge, a tool box is arranged in the box body, and a handle is arranged on the outer side of the box body.
Compared with the prior art, the pressure difference meter inspection device has the following advantages: according to the utility model, the gas tank is provided with the inflation interface, so that the left end of the gas tank is connected with the first control valve and the first pipe joint through a pipeline, the pipeline between the first control valve and the first pipe joint is connected with the first tee joint through the first tee joint, and the first tee joint is connected with the first pressure gauge and the plug; meanwhile, the right end of the gas tank is connected with the second control valve and the second pipe joint through a pipeline, the pipeline between the second control valve and the second pipe joint is connected with the second tee joint seat through the second tee joint, and the second tee joint seat is connected with the second pressure gauge and the pressure regulating valve. In practical application, firstly, two ports of the pressure difference meter to be tested are correspondingly connected with a first pipe joint and a second pipe joint through hoses respectively, and an inflator is connected with an inflation interface to fill air with certain pressure into an air tank under the condition that a first control valve, a second control valve and a pressure regulating valve are closed; then, opening the first control valve and the second control valve at a certain angle, opening the first pressure gauge and the second pressure gauge, and closing the first control valve and the second control valve when the display pressure of the first pressure gauge and the second pressure gauge reaches a certain value according to the inspection requirement; then, opening the pressure regulating valve, and closing the pressure regulating valve when the pressure displayed by the second pressure gauge is reduced to a certain value; and then, comparing the display pressure difference of the first pressure gauge and the second pressure gauge with the display value of the pressure difference gauge, when the display pressure difference is basically consistent with the display value of the second pressure gauge, the pressure difference gauge is free of fault, and when the display pressure difference is larger than the display pressure difference, the pressure difference gauge is free of fault, so that the aim of quickly checking the pressure difference gauge is fulfilled.
The pressure gauge checking device according to the present invention will be described in detail with reference to the embodiments shown in the drawings.
Drawings
FIG. 1 is a schematic view of a first embodiment of a differential pressure gauge testing apparatus according to the present invention;
FIG. 2 is a diagram illustrating a first embodiment of a differential pressure gauge testing apparatus according to the present invention;
fig. 3 is a schematic diagram of a differential pressure gauge checking apparatus according to a second embodiment of the present invention.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for easy understanding, and do not limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 and 2, a first embodiment of a differential pressure gauge checking device of the present invention includes a gas tank 1, and a gas filling port 2 is provided in the gas tank 1. The left end of the gas tank 1 is connected with a first control valve 3 and a first pipe joint 4 through a pipeline, the pipeline between the first control valve 3 and the first pipe joint 4 is connected with a first three-way seat 6 through a first three-way head 5, and the first three-way seat 6 is connected with a first pressure gauge 7 and a plug 8. The right end of the gas tank 1 is connected with a second control valve 3 ' and a second pipe joint 4 ' through pipelines, the pipeline between the second control valve 3 ' and the second pipe joint 4 ' is connected with a second three-way seat 6 ' through a second three-way head 5 ', and the second three-way seat 6 ' is connected with a second pressure gauge 7 ' and a pressure regulating valve 8 '.
In practical application, firstly, two ports of a pressure difference meter 9 to be tested are correspondingly connected with a first pipe joint 4 and a second pipe joint 4 ' through hoses, and air with certain pressure is filled into an air tank 1 by connecting an inflation connector 2 through an inflator pump under the condition that a first control valve 3, a second control valve 3 ' and a pressure regulating valve 8 ' are closed; then, opening the first control valve 3 and the second control valve 3 'at a certain angle, opening the first pressure gauge 7 and the second pressure gauge 7', and closing the first control valve 3 and the second control valve 3 'when the display pressures of the first pressure gauge 7 and the second pressure gauge 7' reach a certain value according to the inspection requirement; then, the pressure regulating valve 8 ' is opened, and when the pressure displayed by the second pressure gauge 7 ' is reduced to a certain value, the pressure regulating valve 8 ' is closed; subsequently, the difference between the display pressures of the first pressure gauge 7 and the second pressure gauge 7' is compared with the display value of the pressure difference gauge 9, when the two are basically consistent, the pressure difference gauge 9 is indicated to be free of fault, and when the difference between the two is larger, the pressure difference gauge 9 is indicated to be free of fault, so that the purpose of quickly checking the pressure difference gauge is achieved, and the pressure difference gauge has the advantages of simple structure, low cost, convenience in use, safety, reliability and strong practicability.
As a specific embodiment, the utility model adopts ball valves for the first control valve 3 and the second control valve 3 'and adopts a needle valve for the pressure regulating valve 8' so as to improve the convenience and the accuracy of pressure control. In order to improve the convenience of connection, the embodiment adopts a quick-insertion pipe joint structure for the first pipe joint 4 and the second pipe joint 4'; in order to improve the convenience of inflation, the present embodiment provides an inflator 10 to inflate air of a certain pressure into the air tank 1 through the inflation inlet 2.
As shown in fig. 3, a second embodiment of the pressure gauge testing device of the present invention is different from the first embodiment in that a portable case 11 is further provided, wherein the gas tank 1, the first three-way seat 6, the first pressure gauge 7, the second three-way seat 6 ', the second pressure gauge 7' and the interconnecting pipe fittings are all provided in the portable case 11 for portability. In one embodiment, the portable box 11 specifically includes a box body 111 and a box cover 112, wherein the box cover 112 is hinged to the box body 111 by a hinge, a tool box 113 is disposed in the box body 111 for placing an inflator and connecting required hoses and pipes, and a handle 114 is disposed on the outer side of the box body 111 for carrying the portable box.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the utility model defined by the claims without departing from the design concept of the present invention.
Claims (7)
1. The utility model provides a pressure differential gauge verifying attachment, its characterized in that, includes gas pitcher (1), gas pitcher (1) is equipped with aerifys interface (2), the left end of gas pitcher (1) has first control valve (3) and first coupling (4) through the tube coupling, the pipeline between first control valve (3) and first coupling (4) is connected with first tee bend seat (6) through first tee bend head (5), first tee bend seat (6) are connected with first manometer (7) and end cap (8), the right-hand member of gas pitcher (1) is connected with second control valve (3 ') and second coupling (4 ') through the pipeline, the pipeline between second control valve (3 ') and second coupling (4 ') is connected with second tee bend seat (6 ') through second tee bend head (5 '), second tee bend seat (6 ') are connected with second manometer (7 ') and air-vent valve (8 ').
2. A differential pressure gauge testing device according to claim 1, wherein the first pipe connector (4) and the second pipe connector (4') are respectively connected with two ports of the differential pressure gauge (9) through hoses.
3. A differential pressure gauge checking device according to claim 2, wherein said first control valve (3) and said second control valve (3 ') are ball valves and said pressure regulating valve (8') is a needle valve.
4. A differential pressure gauge checking device according to claim 3, wherein the first (4) and second (4') pipe connectors are quick-insertion pipe connectors.
5. A pressure differential gauge checking device according to claim 4, further comprising an inflator (10), the inflator (10) being adapted to inflate the gas tank (1) through the inflation interface (2).
6. A differential pressure gauge testing device according to claim 5, further comprising a portable case (11), wherein the gas cylinder (1), the first three-way seat (6), the first pressure gauge (7), the second three-way seat (6 ') and the second pressure gauge (7') are provided in the portable case (11).
7. A differential pressure gauge checking device according to claim 6, wherein the portable case (11) comprises a case body (111) and a case cover (112), the case cover (112) is hinged with the case body (111) through a hinge, a tool box (113) is arranged in the case body (111), and a handle (114) is arranged on the outer side of the case body (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122085751.6U CN216144460U (en) | 2021-08-31 | 2021-08-31 | Pressure differential meter verifying attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122085751.6U CN216144460U (en) | 2021-08-31 | 2021-08-31 | Pressure differential meter verifying attachment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216144460U true CN216144460U (en) | 2022-03-29 |
Family
ID=80810938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122085751.6U Active CN216144460U (en) | 2021-08-31 | 2021-08-31 | Pressure differential meter verifying attachment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216144460U (en) |
-
2021
- 2021-08-31 CN CN202122085751.6U patent/CN216144460U/en active Active
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