CN202494561U - Portable safety valve calibrator - Google Patents
Portable safety valve calibrator Download PDFInfo
- Publication number
- CN202494561U CN202494561U CN2012200375579U CN201220037557U CN202494561U CN 202494561 U CN202494561 U CN 202494561U CN 2012200375579 U CN2012200375579 U CN 2012200375579U CN 201220037557 U CN201220037557 U CN 201220037557U CN 202494561 U CN202494561 U CN 202494561U
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- valve
- pressure
- safety valve
- safety
- pressure cylinder
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Abstract
The utility model relates to a portable safety valve calibrator, comprising a safety valve interface which butts with a safety valve to be detected and is communicated with an air inlet pipeline and an air outlet pipeline. The portable safety valve calibrator is characterized in that: the tail end of the air outlet pipeline is connected with a calibration pressure gauge used for detecting and displaying the pressure of the gas passing through the safety valve to be detected, the air inlet pipeline is connected with a small-capacity pressure cylinder through a pressure reducing valve, and a regulating valve used for regulating the pressure of the gas entering the safety valve interface is arranged between the pressure reducing valve and the safety valve interface; an inlet pipe and an outlet pipe of the pressure reducing valve are respectively connected with a high pressure indicating pressure gauge and a low pressure indicating pressure gauge; and a switch valve is arranged between the pressure reducing valve and the pressure cylinder, an exhaust pipe communicating the air inlet pipeline and air is arranged between the regulating valve and the safety valve interface, and the exhaust pipe is provided with an exhaust valve. The portable safety valve calibrator provided by the utility model is portable, high in calibration accuracy and does not need to be transported after calibration, thus avoiding calibrated safety valves from being damaged in transportation.
Description
Technical field
The present invention relates to the safety valve testing appearance, especially refer to a kind of portable secured valve tester.
Background technology
Safety valve is a kind of commonly used and important overpressure protection apparatus of bearing device in electric power, the petrochemical enterprise; It is the guarantee of system safety operation; Its effect is to guarantee that the bearing device or the top pressure in the pipeline that are attached thereto can not surpass a certain setting value; Be the opening pressure of safety valve, thereby prevent that to a great extent equipment or pipeline from destroying the generation that causes a serious accident owing to superpressure.Safety valve is a kind of automatic valve, and the stop valve that opens and closes with manual operation, blowoff valve etc. are different, and safety valve is under the situation of bearing device superpressure; Can open automatically, the unnecessary medium of releasing guarantees device security; When treating that pressure medium drops to setting, can close automatically also and can recover sealing, stop the further leakage of medium; It is by any external force, but utilizes the power of medium itself to get rid of the fluid of some, in case locking system pressure surpasses the predetermined safe value.
Because whether the parameters such as opening pressure of safety valve meet the demands and are directly connected to the safety of whole process of production, so enterprises such as electric power, petrochemical complex must regularly carry out verification to safety valve.The verification of safety valve at present adopts the safety valve testing appearance to carry out.
Existing tester generally includes the relief valve connection that connects with safety valve to be verified, and the admission line of this relief valve connection connects air compressor, the outlet pipe connection tensimeter of safety valve.Because the weight and volume of air compressor is bigger, causes safety valve testing device heaviness very, therefore existing safety valve testing device ubiquity carries the shortcoming of hard transportation.And if the dismounting safety valve detects to the tester location; On the one hand may be owing to transportation causes the damage of school safety valve; Need the safety valve number of field-checking also very big on the other hand; Therefore, existing heavy relatively field test device can increase the verification cost of safety valve undoubtedly.
The portability of safety valve testing device is a problem demanding prompt solution.
Summary of the invention
Technical matters to be solved by this invention is that the present situation that is directed against prior art provides a kind of volume little, lightweight portable secured valve tester.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this portable secured valve tester, comprise the relief valve connection that connects with safety valve to be detected, and this relief valve connection is communicated with admission line and outlet pipe; The end that it is characterized in that said outlet pipe connects the verification tensimeter be used to detect and show the pressure of the gas through safety valve to be detected; Said admission line connects the pressure cylinder of low capacity through reduction valve, also is provided with between said reduction valve and the said relief valve connection to be used to regulate the accent that gets into gaseous tension in the said relief valve connection and to test valve; The induction pipe of said reduction valve is connected with the high pressure indicating pressure gauge, is connected with the low pressure indicating pressure gauge on the outlet of said reduction valve; Be provided with switch valve between said reduction valve and the said pressure cylinder; Said accent is tested and also is provided with the gas outlet that is communicated with said admission line and atmosphere between valve and the said relief valve connection, and said gas outlet is provided with vent valve.
Preferably, described pressure cylinder can comprise that the volume that a plurality of parallel connections are used is 3 liters a pressure bottle.Generally use two verifications that just can satisfy most of safety valve to require.3 liters pressure bottle is very small and exquisite, and is very convenient to carry.
The inflation of pressure cylinder for ease can be provided with the inflation interface suitable with air compressor at the end of said admission line, and the admission line between said inflation interface and the described pressure cylinder is provided with gas filling valve.
Be connected with the compensator or trimmer pressure bottle of the low capacity that said verification tensimeter is shielded on the outlet pipe between said relief valve connection and the verification tensimeter.
In order to improve the precision of verification, described verification tensimeter can have a plurality of, is connected on the described outlet pipe after these verification tensimeter parallel connections.The release pressure of safety valve to be detected is got the mean value of the measured data of these verification tensimeters.
Compared with prior art, the present invention adopts the pressure cylinder of low capacity pressure as detecting source of the gas, is convenient for carrying, and has avoided the problem that big, heavy being difficult to of causing of safety valve testing device volume transports, carries in the prior art; Adopt safety valve testing appearance provided by the present invention, can carry out verification in the erecting stage of safety valve, the verification accuracy is high, and do not need transportation after the verification, has avoided the damage in the school safety valve transportation.
Description of drawings
Fig. 1 is the planar structure synoptic diagram of the embodiment of the invention.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, this portable secured valve tester comprises parts such as admission line 1, outlet pipe 2, relief valve connection 3 and gas outlet 4.Wherein be disposed with inflation interface 5, gas filling valve 9, switch valve 10, reduction valve 7 and accent on the admission line 1 and test valve 13; Accent is tested valve 13 near relief valve connection 3; Two capacity are to be connected on the admission line between gas filling valve 9 and the switch valve 10 after 3 liters pressure cylinder 6 parallel connections.
Above-mentioned inflation interface 5 and admission line 1 when adopting miscellaneous equipment to pressure cylinder 6 inflations, can connect other charger for removably connecting through changing the inflation interface easily.Pressure cylinder 6 also can use the pressure cylinder of other low capacity as required, for example 5 liters, 7 liters or the like, also can only use one 7 liters pressure cylinder, can select flexibly according to the concrete specification of safety valve to be detected.
Be connected with the high pressure indicating pressure gauge 11 of 0-25MPa on the induction pipe of reduction valve 7, be used to show the pressure that gets into gas in the reduction valve; Be connected with the low pressure indicating pressure gauge 12 of 0-6MPa on the outlet of reduction valve, be used to show the pressure that gets into gas in the relief valve connection.
Accent is tested and is communicated with gas outlet 4 on the admission line between valve 13 and the relief valve connection, and gas outlet 4 is provided with vent valve 15.
The verification tensimeter that it is 0-6MPa that the end of above-mentioned outlet pipe 2 is connected with two specifications, these two verification tensimeters are connected in parallel; Also be connected with compensator or trimmer pressure bottle 14 on the outlet pipe 2.
During use, relief valve connection is docked on the safety valve to be detected, opens switch valve 10, regulate and test valve 13, begin to detect from little pressure, the pressure that gets into the gas in relief valve connection and the safety valve to be detected can be read from verification tensimeter 8.Get into the manometric gas of verification under the protection of compensator or trimmer pressure bottle 14 through relief valve connection, can get in the verification tensimeter 8 gentlely, with protection verification tensimeter 8.Strengthen gradually in the testing process and transfer the opening of testing valve, when safety valve to be detected takeoff, 8 data presented of verification tensimeter were the release pressure of this safety valve to be detected.
When the pressurized air in the pressure cylinder 6 uses up, can off switch valve 10, open gas filling valve 9, inflate in pressure cylinder 6 with chargers such as air compressor.
For the detection of the safety valve of high pressure values, can also open gas filling valve 9 and switch valve 10 simultaneously, use the pressurized air that air compressor provided, perhaps use air compressor and pressure cylinder 6 interior pressurized air to detect simultaneously.
The safety valve testing appearance that present embodiment provided has been because the pressure cylinder that adopted low capacity, has reduced the volume and weight of device greatly as the verification source of the gas, and is easy to carry.
Claims (5)
1. a portable secured valve tester comprises the relief valve connection that connects with safety valve to be detected, and this relief valve connection is communicated with admission line and outlet pipe; The end that it is characterized in that said outlet pipe connects the verification tensimeter be used to detect and show the pressure of the gas through safety valve to be detected; Said admission line connects the pressure cylinder of low capacity through reduction valve, also is provided with between said reduction valve and the said relief valve connection to be used to regulate the accent that gets into gaseous tension in the said relief valve connection and to test valve; The induction pipe of said reduction valve is connected with the high pressure indicating pressure gauge, is connected with the low pressure indicating pressure gauge on the outlet of said reduction valve; Be provided with switch valve between said reduction valve and the said pressure cylinder; Said accent is tested and also is provided with the gas outlet that is communicated with said admission line and atmosphere between valve and the said relief valve connection, and said gas outlet is provided with vent valve.
2. portable secured valve tester according to claim 1 is characterized in that described pressure cylinder is that a plurality of parallelly connected volumes that use are 3 liters pressure cylinder.
3. portable secured valve tester according to claim 1 and 2; The end that it is characterized in that said admission line is provided with the inflation interface suitable with air compressor, and the admission line between said inflation interface and the described pressure cylinder is provided with gas filling valve.
4. portable secured valve tester according to claim 3 is characterized in that being connected with on the outlet pipe between said relief valve connection and the verification tensimeter compensator or trimmer pressure bottle of the low capacity that said verification tensimeter is shielded.
5. portable secured valve tester according to claim 4, it is a plurality of to it is characterized in that described verification tensimeter has, and is connected on the described outlet pipe after these verification tensimeter parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200375579U CN202494561U (en) | 2012-02-06 | 2012-02-06 | Portable safety valve calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200375579U CN202494561U (en) | 2012-02-06 | 2012-02-06 | Portable safety valve calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494561U true CN202494561U (en) | 2012-10-17 |
Family
ID=47000786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200375579U Expired - Lifetime CN202494561U (en) | 2012-02-06 | 2012-02-06 | Portable safety valve calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494561U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383302A (en) * | 2013-06-05 | 2013-11-06 | 常州大学 | Online testing and adjusting device for set pressure of direct-operated relief valve |
| CN106872155A (en) * | 2017-01-20 | 2017-06-20 | 合肥通用机械研究院 | A kind of performance of exhaust valve test system and method for testing |
| CN108362489A (en) * | 2018-03-27 | 2018-08-03 | 河南省铭澳特种设备检测有限公司 | A kind of versatile testing device of safety valve |
| CN112834208A (en) * | 2021-02-26 | 2021-05-25 | 重庆科技学院 | Automatic calibration system for pressure of safety valve calibration equipment |
-
2012
- 2012-02-06 CN CN2012200375579U patent/CN202494561U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383302A (en) * | 2013-06-05 | 2013-11-06 | 常州大学 | Online testing and adjusting device for set pressure of direct-operated relief valve |
| CN106872155A (en) * | 2017-01-20 | 2017-06-20 | 合肥通用机械研究院 | A kind of performance of exhaust valve test system and method for testing |
| CN106872155B (en) * | 2017-01-20 | 2019-12-10 | 合肥通用机械研究院有限公司 | exhaust valve performance test system and test method |
| CN108362489A (en) * | 2018-03-27 | 2018-08-03 | 河南省铭澳特种设备检测有限公司 | A kind of versatile testing device of safety valve |
| CN112834208A (en) * | 2021-02-26 | 2021-05-25 | 重庆科技学院 | Automatic calibration system for pressure of safety valve calibration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |