CN216410654U - Valve housing strength detection device - Google Patents
Valve housing strength detection device Download PDFInfo
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- CN216410654U CN216410654U CN202122887005.9U CN202122887005U CN216410654U CN 216410654 U CN216410654 U CN 216410654U CN 202122887005 U CN202122887005 U CN 202122887005U CN 216410654 U CN216410654 U CN 216410654U
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Abstract
The utility model discloses a valve shell strength detection device, which relates to the technical field of valve detection, and adopts the technical scheme that: include with the test end of being connected by the survey valve, to mark container, differential pressure gauge and pressure source, the pressure source is pipeline intercommunication respectively in the test end and to mark the container, the pressure source with test end, to be provided with first pressure switch and second between the mark container and advance the pressure switch respectively, the differential pressure gauge pipeline communicates in to mark container and test end, first pressure switch and test end between advancing is provided with first pressure release switch, the second advances the pressure switch and to being provided with second pressure release switch between the mark container. The utility model solves the problem that the strength of the shell of the valve to be tested can not be accurately tested due to systematic pressure drop in the traditional mode by arranging the calibration container.
Description
Technical Field
The utility model relates to the technical field of valve detection, in particular to a valve shell strength detection device.
Background
The existing valve casing detection device is shown in fig. 2, and mainly includes a pressure gauge 5 communicated with a valve 4 to be detected, a pressure source 1 communicated between the pressure gauge 5 and the valve 4 to be detected, and a pressure inlet switch and a pressure relief switch arranged on a pressure source pipeline. Among them, the pressure drop method of the pressure gauge has not been controversial. In theory, the pressure gauge reading should remain unchanged as long as there are no leak points for the valve being tested, the on/off valve, and the piping. However, in the process of pressure holding, no matter the tested valve, the switch valve and the pipeline have better sealing performance, the reading of the pressure gauge is slightly reduced, and the slight reduction of the reading of the pressure gauge is generally called systematic pressure drop. The phenomenon that the reading of the pressure gauge is reduced cannot be judged whether the reading is caused by the leakage of the valve to be detected or is normal systemic pressure drop, which is a difficult problem in the method for judging the strength qualification of the valve shell by using a pressure drop method at present.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a valve shell strength detection device, which solves the problem that the strength of a valve shell to be detected cannot be accurately tested due to systematic pressure drop in the traditional mode through the arrangement of a calibration container.
The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a valve housing intensity detection device, includes test end, to mark container, differential pressure gauge and pressure source be connected with the valve under test, the pressure source is the pipeline respectively and communicates in test end and to mark the container, the pressure source with test end, to be provided with first pressure switch and second between the mark container and advance pressure switch respectively, the differential pressure gauge pipeline communicates in to mark container and test end, first pressure switch and test end between advance is provided with first pressure release switch, the second advances pressure release switch and is provided with second pressure release switch to marking between the container.
In one embodiment, the targeting container is a cylindrical sealed container.
In one embodiment, the targeting vessel is made of metal.
In one embodiment, the testing end is further provided with a pressure gauge.
In conclusion, the utility model has the following beneficial effects: the during operation is connected test end and measured valve, opens first pressure switch and second simultaneously and advances the pressure switch to let in gas by the pressure source, when being full of gas simultaneously in measured valve and the mark container, close first pressure switch and second and advance the pressure switch, let measured valve and mark container pressurize respectively with the mark container, because both volumes are the same with the operating mode, and sealed to the mark container, do not have the leakage. If there is no leakage from the valve being tested, there will be the same pressure drop (i.e., system pressure drop) for both, at which point the differential pressure gauge reading will not deflect; if the tested valve has leakage, the pressure drop of the tested valve is larger than that of the tested valve, and at the moment, whether the shell strength of the tested valve is qualified can be judged through the pointed reading when the differential pressure gauge deflects, so that the problem that the shell strength of the tested valve cannot be accurately tested due to systematic pressure drop in the traditional mode is solved.
Drawings
Fig. 1 is a schematic structural diagram of a valve housing strength detection apparatus according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a casing strength detection apparatus in the prior art.
In the figure: 1. a pressure source; 2. a first pressure inlet switch; 3. a first pressure relief switch; 4. a valve under test; 5. a pressure gauge; 6. a differential pressure gauge; 7. aligning the containers; 8. a second pressure relief switch; 9. and the second pressure inlet switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the embodiment of the application provides a valve housing intensity detection device, include the test end of being connected with the valve 4 under test, to mark container 7, differential pressure gauge 6 and pressure source 1, pressure source 1 pipeline intercommunication respectively in the test end with to mark container 7, pressure source 1 and test end, to being provided with first pressure inlet switch 2 and second pressure inlet switch 9 between the mark container 7 respectively, differential pressure gauge 6 pipeline intercommunication in to mark container 7 and test end, be provided with first pressure relief switch 3 between first pressure inlet switch 2 and the test end, second pressure inlet switch 9 and to being provided with second pressure relief switch 8 between the mark container 7.
It should be noted that, during the test, the volume of the valve 4 to be tested is equal to the volume of the calibration container 7.
During operation, be connected test end and measured valve 4, open first pressure switch 2 and second simultaneously and advance pressure switch 9 to let in gas by pressure source 1, when being full of gas in measured valve 4 and the mark container 7 simultaneously, close first pressure switch 2 and second and advance pressure switch 9, let measured valve 4 and mark container 7 pressurize respectively, because both volume and operating mode are the same, and seal mark container 7, do not exist and leak. If there is no leak in the valve 4 being tested, there will be the same pressure drop (i.e., system pressure drop) for both, at which point the reading of the differential pressure gauge 6 will not deflect; if the tested valve 4 leaks, the pressure drop of the tested valve 4 is larger than that of the tested valve 4, the shell strength of the tested valve 4 can be judged to be qualified or not through the pointed reading when the differential pressure gauge 6 deflects, and the first pressure relief switch 3 and the second pressure relief switch 8 can be opened for pressure relief after the work is finished.
By means of the mode, the problem that the strength of the shell of the tested valve 4 cannot be accurately tested due to systematic pressure drop in the traditional mode is solved.
In addition, the targeting vessel 7 is a cylindrical sealed vessel.
Specifically, the target container 7 is set to be cylindrical, so that the production and the processing are convenient, the target container 7 has better sealing performance, and meanwhile, the cylindrical target container 7 is favorable for dispersing the pressure of gas, so that the side wall of the target container is not easy to concentrate on stress.
By adopting the mode, the working condition of the calibration container 7 is closer to the tested valve 4, so that the difference of system pressure drop between the two is reduced, and the testing precision of the shell strength of the tested valve 4 is improved.
On the basis, the targeting container 7 is made of metal.
In the above way, the material of the measured valve 4 is the same as that of the calibration container 7, and the difference of the system pressure drop between the measured valve 4 and the calibration container 7 is further reduced.
On the basis, the testing end is also provided with a pressure gauge 5.
In the working process, under the condition that relatively accurate measurement is not needed, in order to simplify the operation steps, the second pressure inlet switch 9 can be closed, so that the measurement mode in the prior art can be realized.
The mode provides a feasible scheme for diversified measurement, so that the method is more flexible and convenient to use.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (4)
1. The utility model provides a valve housing intensity detection device which characterized in that: include with the test end of being connected by the survey valve, to mark container (7), differential pressure gauge (6) and pressure source (1), pressure source (1) pipeline intercommunication respectively in test end and to mark container (7), pressure source (1) and test end, to be provided with first pressure release switch (2) and second between mark container (7) and advance pressure switch (9) respectively, differential pressure gauge (6) pipeline intercommunication in to mark container (7) and test end, first pressure release switch (3) of advancing are provided with between pressure switch (2) and the test end, second pressure release switch (8) are advanced to the second and are provided with between pressure switch (9) and the mark container (7).
2. The valve housing strength detection device of claim 1, wherein: the label aligning container (7) is a cylindrical sealed container.
3. The valve housing strength detection device of claim 1, wherein: the label aligning container (7) is made of metal.
4. The valve housing strength detection device of claim 1, wherein: the testing end is also provided with a pressure gauge (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122887005.9U CN216410654U (en) | 2021-11-23 | 2021-11-23 | Valve housing strength detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122887005.9U CN216410654U (en) | 2021-11-23 | 2021-11-23 | Valve housing strength detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216410654U true CN216410654U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122887005.9U Active CN216410654U (en) | 2021-11-23 | 2021-11-23 | Valve housing strength detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN216410654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570670A (en) * | 2022-05-06 | 2022-06-03 | 张家港保税区亚鑫精密制管有限公司 | Necking pipe fitting necking strength detection tool |
-
2021
- 2021-11-23 CN CN202122887005.9U patent/CN216410654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570670A (en) * | 2022-05-06 | 2022-06-03 | 张家港保税区亚鑫精密制管有限公司 | Necking pipe fitting necking strength detection tool |
| CN114570670B (en) * | 2022-05-06 | 2022-08-05 | 张家港保税区亚鑫精密制管有限公司 | Necking pipe fitting necking strength detection tool |
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