CN211504658U - Safety valve service life testing device - Google Patents
Safety valve service life testing device Download PDFInfo
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- CN211504658U CN211504658U CN201922353118.3U CN201922353118U CN211504658U CN 211504658 U CN211504658 U CN 211504658U CN 201922353118 U CN201922353118 U CN 201922353118U CN 211504658 U CN211504658 U CN 211504658U
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- electromagnetic valve
- flowmeter
- safety
- safety valve
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Abstract
The utility model relates to the technical field of safety valves, in particular to a safety valve service life testing device, which comprises an air source, a gas pressure increasing valve, a three-way electromagnetic valve, a safety valve to be tested, a first electromagnetic valve and a second electromagnetic valve, wherein the air source is communicated with an inlet of the gas pressure increasing valve, an outlet of the gas pressure increasing valve is communicated with the three-way electromagnetic valve, a first outlet a of the three-way electromagnetic valve is communicated with the safety valve to be tested and the first electromagnetic valve in sequence, an outlet of the first electromagnetic valve is communicated with the atmosphere, a second outlet b of the three-way electromagnetic valve is communicated with the second electromagnetic valve, and an; compared with the prior art, the safety valve has the advantages of simple structure, convenience in manufacture and simplicity and convenience in operation, and can accurately detect the service life of the safety valve.
Description
Technical Field
The utility model relates to a relief valve technical field, concretely relates to relief valve life-span testing arrangement.
Background
The safety valve is a valve for safety protection of a pressure vessel, and is generally installed on equipment or pipelines of a pressure vessel system. The pressure of the medium in the pipeline or the pipeline is in a normally closed state when the pressure is lower than the design pressure, the medium pressure in the pipeline or the equipment can be automatically opened when the medium pressure in the equipment or the pipeline rises and exceeds an allowable value, and the medium pressure in the pipeline or the equipment is prevented from exceeding a specified value by discharging the medium to the outside of the system, so that the normal work of the equipment and the pipeline is protected, accidents are prevented, and the loss is reduced. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation.
The service life of the safety valve is a basic requirement on the product quality, the manufacturing management of the safety valve must be carried out by the country, and the market admission system is implemented, namely, the manufacturing unit of the safety valve must obtain corresponding 'special equipment manufacturing license', so the service life test of the safety valve must be carried out.
The existing safety valve service life testing device is complex in structure and inconvenient to use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the not enough among the prior art, and provide a relief valve life-span testing arrangement that the structure is simple and easy.
The purpose of the utility model is realized through the following technical scheme: the application provides a relief valve life test device, including the air supply, gaseous pressure boost valve, three way solenoid valve, the relief valve that awaits measuring, first solenoid valve and second solenoid valve, the air supply communicates with the entry of gaseous pressure boost valve, the export and the three way solenoid valve intercommunication of gaseous pressure boost valve, three way solenoid valve's first export an communicates relief valve and the first solenoid valve that awaits measuring in proper order, the export and the atmosphere intercommunication of first solenoid valve, three way solenoid valve's second export b and second solenoid valve intercommunication, the export and the atmosphere intercommunication of second solenoid valve.
The device comprises a three-way electromagnetic valve, a safety valve to be tested, a first flowmeter, a second flowmeter and a third flowmeter, wherein the first flowmeter is communicated between the three-way electromagnetic valve and the safety valve to be tested, the second flowmeter is arranged between the safety valve to be tested and the first electromagnetic valve, and the third flowmeter is arranged between the three-way electromagnetic valve and the second electromagnetic valve.
The gas pressure increasing device comprises a gas pressure increasing valve, a three-way electromagnetic valve, a first electromagnetic valve, a second electromagnetic valve, a third flowmeter and a controller, wherein the controller is respectively and electrically connected with and controlled by the gas pressure increasing valve, the three-way electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve, and the first flowmeter, the second flowmeter and the third flowmeter are respectively and electrically connected with the controller.
The utility model has the advantages that: the safety valve service life testing device of the application has the working process that: the method comprises the steps that a gas source provides media to a gas pressurization valve, the gas pressurization valve leads the pressurized gas to two branches of a second electromagnetic valve and a safety valve to be tested respectively, the safety valve to be tested is conducted after reaching a critical value when the second electromagnetic valve and the first electromagnetic valve are both in a closed state, the first electromagnetic valve is opened after a certain time, and therefore pressure relief is carried out until the safety valve to be tested is switched to the closed state, and the testing mode is used for simulating the normal use process of the safety valve; the other test is that the second solenoid valve and the first solenoid valve are both in a closed state, the safety valve to be tested reaches or will reach a critical value, a certain time is kept for waiting, then the second solenoid valve is switched to an open state to directly carry out pressure relief, whether the critical value of the safety valve to be tested changes can be tested in the mode, the two test modes are circulated, and therefore the service life of the safety valve to be tested is tested.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic structural diagram of the safety valve life testing device of the present invention.
Reference numerals: the device comprises a gas source 1, a gas booster valve 2, a three-way electromagnetic valve 3, a safety valve 4 to be tested, a first electromagnetic valve 51, a second electromagnetic valve 52, a first flowmeter 61, a second flowmeter 62 and a third flowmeter 63.
Detailed Description
The invention will be further described with reference to the following examples.
The utility model discloses a relief valve life-span testing arrangement's embodiment, as shown in fig. 1, including air supply 1, gaseous pressure intensifying valve 2, three way solenoid valve 3, the relief valve 4 that awaits measuring, first solenoid valve 51 and second solenoid valve 52, air supply 1 communicates with gaseous pressure intensifying valve 2's entry, gaseous pressure intensifying valve 2's export and three way solenoid valve 3 intercommunication, three way solenoid valve 3's first export an communicates relief valve 4 and first solenoid valve 51 that awaits measuring in proper order, first solenoid valve 51's export and atmosphere intercommunication, three way solenoid valve 3's second export b and second solenoid valve 52 intercommunication, second solenoid valve 52's export and atmosphere intercommunication.
In order to more conveniently record the flow rate in each pipeline, the device of the embodiment further comprises a first flow meter 61, a second flow meter 62 and a third flow meter 63, wherein the first flow meter 61 is arranged between the three-way electromagnetic valve 3 and the safety valve 4 to be tested in a communication mode, the second flow meter 62 is arranged between the safety valve 4 to be tested and the first electromagnetic valve 51, and the third flow meter 63 is arranged between the three-way electromagnetic valve 3 and the second electromagnetic valve 52. The first flowmeter 61 and the second flowmeter 62 are respectively arranged at the outlet and the inlet of the safety valve 4 to be tested, so that the quality of the safety valve 4 to be tested can be effectively compared, and whether air leakage or other defects exist in the safety valve can be effectively judged.
In the present embodiment, the apparatus further includes a controller electrically connected to and controlled by the gas pressure increasing valve 2, the three-way electromagnetic valve 3, the first electromagnetic valve 51, and the second electromagnetic valve 52, respectively, and the first flow meter 61, the second flow meter 62, and the third flow meter 63 are electrically connected to the controller, respectively.
The working process of the safety valve service life testing device of the embodiment is as follows: the method comprises the steps that a medium is provided by an air source 1 to an air pressure increasing valve 2, the air pressure increasing valve 2 leads the pressurized air to two branches of a second electromagnetic valve 52 and a safety valve 4 to be tested respectively, the safety valve 4 to be tested is conducted after reaching a critical value when the second electromagnetic valve 52 and a first electromagnetic valve 51 are both in a closed state, the first electromagnetic valve 51 is opened after a certain time, and therefore pressure is relieved until the safety valve 4 to be tested is switched to the closed state, and the testing mode is used for simulating the normal use process of the safety valve; in addition, in the test, under the closed state of both the second electromagnetic valve 52 and the first electromagnetic valve 51, the safety valve 4 to be tested reaches or will reach the critical value, and the test is kept for a certain time, then the second electromagnetic valve 52 is switched to the open state to directly perform pressure relief, and whether the critical value of the safety valve 4 to be tested changes can be tested by the method, and the two test methods are circulated, so that the service life of the safety valve 4 to be tested is tested.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. The utility model provides a relief valve life-span testing arrangement which characterized in that: the air source is communicated with an inlet of the air pressurization valve, an outlet of the air pressurization valve is communicated with the three-way electromagnetic valve, a first outlet a of the three-way electromagnetic valve is sequentially communicated with the safety valve to be tested and the first electromagnetic valve, an outlet of the first electromagnetic valve is communicated with the atmosphere, a second outlet b of the three-way electromagnetic valve is communicated with the second electromagnetic valve, and an outlet of the second electromagnetic valve is communicated with the atmosphere.
2. The safety valve life test device according to claim 1, characterized in that: the device also comprises a first flowmeter, a second flowmeter and a third flowmeter, wherein the first flowmeter is communicated between the three-way electromagnetic valve and the safety valve to be tested, the second flowmeter is arranged between the safety valve to be tested and the first electromagnetic valve, and the third flowmeter is arranged between the three-way electromagnetic valve and the second electromagnetic valve.
3. The safety valve life test device according to claim 2, characterized in that: the gas pressure increasing device is characterized by further comprising a controller, wherein the controller is respectively and electrically connected with and controlled by the gas pressure increasing valve, the three-way electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve, and the first flowmeter, the second flowmeter and the third flowmeter are respectively and electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922353118.3U CN211504658U (en) | 2019-12-24 | 2019-12-24 | Safety valve service life testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922353118.3U CN211504658U (en) | 2019-12-24 | 2019-12-24 | Safety valve service life testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211504658U true CN211504658U (en) | 2020-09-15 |
Family
ID=72419171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922353118.3U Active CN211504658U (en) | 2019-12-24 | 2019-12-24 | Safety valve service life testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211504658U (en) |
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2019
- 2019-12-24 CN CN201922353118.3U patent/CN211504658U/en active Active
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