CN211347365U - Safety valve pressure setting and sealing detection device - Google Patents
Safety valve pressure setting and sealing detection device Download PDFInfo
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- CN211347365U CN211347365U CN201920992659.8U CN201920992659U CN211347365U CN 211347365 U CN211347365 U CN 211347365U CN 201920992659 U CN201920992659 U CN 201920992659U CN 211347365 U CN211347365 U CN 211347365U
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Abstract
The utility model belongs to the technical field of the relief valve capability test, concretely relates to relief valve pressure is set and is sealed detection device and method. The utility model discloses the medium pressure source passes through the pipeline and is connected with the cross, and the second of cross is connected with the relief valve, and the third of cross is connected with standard container, and the fourth of cross is connected with little standard container, and the other end that little standard holds is connected with the tee bend, and the second of tee bend is connected with the valve under test, and the third of tee bend is connected with the third of cross; the first precision pressure sensor is arranged on the standard container, and the second precision pressure sensor is arranged on a third tee of the four-way valve; the first precision pressure sensor and the second precision pressure sensor are connected to a computer through cables. The utility model discloses effectively solve and can't draw the condition that leaks to detect the valve through the export, insert the computer through the high accuracy manometer and realize intellectuality and mobility.
Description
Technical Field
The utility model belongs to the technical field of the relief valve capability test, concretely relates to relief valve pressure is set and is sealed detection device.
Background
The pressure and sealing test method commonly used for safety valves in the market at present is mainly carried out through a pressure calibration table, for the sealing test of the valves, the detection method of external leakage is mainly to detect leakage liquid or helium, internal leakage is mainly to enter pressure through an inlet, and the detection is carried out through a leakage guide pipe entering a measuring cup (test medium is liquid) or a gas bubble method (test medium is gas) after an outlet is blocked, and the pressure setting and sealing test method for the existing safety valves has the following defects:
1. the existing test bed is generally large and fixed in a certain place, and a valve needs to be hoisted to a specified position if a test is needed, so that the hoisting collision and falling risks exist, and the back-and-forth hoisting time and manpower and material resources are consumed;
2. the valve with the outlet incapable of leakage guiding cannot be subjected to pressure setting and sealing tests;
3. the detection precision of the sealing performance of the non-closed safety valve is poor;
4. a special leakage guide device needs to be processed for the outlet of the large-diameter valve;
5. as the pressure setting of the safety valve needs to be judged by dropping the pressure gauge manually, the problems of manual uncertainty and low precision exist.
Aiming at the problems, a more convenient and scientific method is provided for checking the safety valve, the test method has high accuracy and convenient and intelligent operation, the set pressure of the safety valve is not required to be judged visually by workers, an outlet leakage device or a pipeline is not required to be configured in the sealing test, the sealing test can be carried to the site to test the valve, and the pressure setting and the sealing test can be realized only by connecting with the inlet of the valve.
Disclosure of Invention
The utility model provides a technical problem:
the utility model provides a not enough to prior art, the utility model provides a relief valve pressure is set and sealed detection device can realize only with valve entry linkage, just can realize pressure setting and leak the quantitative measurement, and it has great difference to judge through the export leakage condition to let out leakage quantity in the past, can effectively solve and can't draw the condition of leaking and detecting the valve leakage through the export, inserts the computer through the high accuracy manometer and realizes intellectuality and mobility.
The utility model adopts the technical proposal that:
a pressure setting and sealing detection device for a safety valve comprises a standard container, a small standard container, a first precision pressure sensor, a second precision pressure sensor, a computer, a safety valve and a pressure source, wherein the pressure source is connected with a four-way through a pipeline; the first precision pressure sensor is arranged on the standard container, and the second precision pressure sensor is arranged on a third tee of the four-way valve; the first precision pressure sensor and the second precision pressure sensor are connected to a computer through cables.
The pressure source is provided with a regulating valve between the pipeline and the four-way valve.
The third tee of the four-way valve is sequentially connected with a first stop valve, a standard container, a reducing valve and a second stop valve.
The fourth cross of the cross is connected with the third stop valve and the small standard container in sequence.
The third tee of the tee is connected with the other end of the second stop valve; and the second precision pressure sensor is arranged between the second stop valve and the tee joint.
The utility model has the advantages that:
(1) the utility model provides a pair of relief valve pressure is set and sealed detection device, connect after this method relates to relevant pipeline and equipment, just can be through the quantitative leakage quantity that detects of pressure drop by equipment of being detected, and need not to check in advance the equipment of being detected pressurized space volume, be applicable to all bore valves.
(2) The utility model provides a pair of relief valve pressure is set and sealed detection device can effectively solve to the valve that can't go on through export drainage and let out leakage quantity quantitative measurement, for new portable relief valve calibration instrument.
Drawings
Fig. 1 is a schematic structural view of a safety valve pressure setting and sealing detection device provided by the present invention;
in the figure: 1-regulating valve, 2-stop valve, 3-standard container, 4-pressure reducing valve, 5-stop valve, 6-stop valve, 7-small standard container, 8-first precision pressure sensor, 9-second precision pressure sensor, 10-measured valve, 11-computer, 12-safety valve and 13-pressure source.
Detailed Description
The following describes the safety valve pressure setting and seal detecting device provided by the present invention in further detail with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, the safety valve pressure setting and sealing detection device provided by the present invention comprises a regulating valve 1, a stop valve 2, a standard container 3, a pressure reducing valve 4, a stop valve 5, a stop valve 6, a small standard container 7, a first precise pressure sensor 8, a second precise pressure sensor 9, a measured valve 10, a computer 11, a safety valve 12, and a pressure source 13,
the pressure source 13 is connected with a four-way valve through a pipeline, a regulating valve 1 is arranged on the pipeline, a safety valve 12 is connected with a second four-way valve, a first stop valve 2, a standard container 3, a pressure reducing valve 4 and a second stop valve 5 are sequentially connected with a third four-way valve, a third stop valve 6 and a small standard container 7 are sequentially connected with the fourth four-way valve, the other end of the small standard container 7 is connected with the third four-way valve, the second four-way valve of the third four-way valve is connected with a valve 10 to be tested, and the third four-; the first precision pressure sensor 8 is installed on the standard container 3, and the second precision pressure sensor 9 is installed between the second stop valve 5 and the tee joint.
The first precision pressure sensor 8 and the second precision pressure sensor 9 are connected to a computer 11 through cables.
A method for setting pressure and detecting sealing of a safety valve comprises the following steps:
step one, as shown in fig. 1, the pipeline and the container between the parts 2 to 4 are communicated, water is poured into a large number of cups after the container and the pipeline are filled with water, and the total volume V0 of the pipeline and the container between the parts 2 to 4 is measured.
And step two, connecting the components according to the figure 1.
And step three, closing the stop valves 2 and 5 and opening the stop valve 6.
And step four, regulating the pressure through the regulating valve 1 until the measured safety valve 10 jumps, and automatically reading the pressure peak value of the precision pressure sensor 9 by a computer to obtain the set pressure value of the safety valve.
And step five, closing the stop valve 6, and opening the stop valves 2 and 5.
And step six, adjusting the pressure reducing valve 4 to the sealing pressure of the safety valve, and closing the stop valve 2.
And step seven, timing is started from the computer, the pressure drop delta P of the pressure sensor 8 in the specified time is detected, and the pressure of the pressure sensor 9 is observed to be unchanged.
Step eight, according to a formula: vx＝△P×V0/P0Calculating the leakage rate VxIn which P is0Is at atmospheric pressure.
The present invention has been described in detail with reference to the drawings and the actual operation, but the present invention is not limited to the above-described operation, and various changes, including changes in size, etc., can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can be applied to any other part not described in detail.
Claims (5)
1. The utility model provides a relief valve pressure is set and sealed detection device which characterized in that: the pressure source (13) is connected with a four-way valve through a pipeline, a second four-way valve is connected with a safety valve (12), a third four-way valve is connected with the standard container (3), the fourth four-way valve is connected with the small standard container (7), the other end of the small standard container (7) is connected with a three-way valve, the second three-way valve is connected with a valve to be tested (10), and the third three-way valve is connected with the third four-way valve; a first precise pressure sensor (8) is arranged on the standard container (3), and a second precise pressure sensor (9) is arranged on a third tee of the cross joint; the first precision pressure sensor (8) and the second precision pressure sensor (9) are connected to a computer (11) through cables.
2. The safety valve pressure setting and seal detecting device according to claim 1, wherein: a regulating valve (1) is arranged between the pressure source (13) and the four-way valve through a pipeline.
3. The safety valve pressure setting and seal detecting device according to claim 2, wherein: the third tee of the four-way valve is sequentially connected with a first stop valve (2), a standard container (3), a reducing valve (4) and a second stop valve (5).
4. A safety valve pressure setting and seal detecting device according to claim 3, characterized in that: the fourth cross of the cross is connected with a stop valve III (6) and a small standard container (7) in sequence.
5. The safety valve pressure setting and seal detecting device according to claim 4, wherein: the third tee of the tee is connected with the other end of the second stop valve (5); and a second precise pressure sensor (9) is arranged between the second stop valve (5) and the tee joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992659.8U CN211347365U (en) | 2019-06-28 | 2019-06-28 | Safety valve pressure setting and sealing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992659.8U CN211347365U (en) | 2019-06-28 | 2019-06-28 | Safety valve pressure setting and sealing detection device |
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| Publication Number | Publication Date |
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| CN211347365U true CN211347365U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920992659.8U Active CN211347365U (en) | 2019-06-28 | 2019-06-28 | Safety valve pressure setting and sealing detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207975A (en) * | 2019-06-28 | 2019-09-06 | 江苏核电有限公司 | A kind of adjusting of safety valve pressure and package seal checker and method |
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2019
- 2019-06-28 CN CN201920992659.8U patent/CN211347365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207975A (en) * | 2019-06-28 | 2019-09-06 | 江苏核电有限公司 | A kind of adjusting of safety valve pressure and package seal checker and method |
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