CN214894040U - High-pressure water medium safety valve calibration system - Google Patents
High-pressure water medium safety valve calibration system Download PDFInfo
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- CN214894040U CN214894040U CN202121562552.3U CN202121562552U CN214894040U CN 214894040 U CN214894040 U CN 214894040U CN 202121562552 U CN202121562552 U CN 202121562552U CN 214894040 U CN214894040 U CN 214894040U
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Abstract
The utility model discloses a high-pressure water medium safety valve checking system, which comprises a checking hydraulic output mechanism, a checking control mechanism and a safety valve clamping mechanism, the checking hydraulic output mechanism, the checking control mechanism and the safety valve clamping mechanism are connected through a high-pressure pipeline, the checking control mechanism comprises a checking pressure gauge, a pressure boosting needle valve, a pressure gauge needle valve and a pressure relief needle valve, the checking control mechanism is connected with the hydraulic energy accumulator in the checking hydraulic output mechanism through a high-pressure pipeline, the check pressure gauge is fixed on the vertical high-pressure pipeline, a pressure gauge needle valve is arranged below the high-pressure pipeline, a horizontal high-pressure pipeline arranged in the check control mechanism is communicated with the vertical high-pressure pipeline, and a pressure-boosting needle valve is arranged on the horizontal high-pressure pipeline, and a pressure-relieving needle valve is fixedly arranged at the tail end of the vertical high-pressure pipeline.
Description
Technical Field
The utility model relates to a relief valve technical field, in particular to high pressure water medium relief valve calibration system.
Background
The safety valve checking system mostly adopts gas medium checking, and when the high-pressure safety valve is checked by adopting the gas medium, huge noise and airflow can be generated due to severe expansion of the discharged gas, so that the operation safety is influenced; meanwhile, when the valve clack of the safety valve returns to the seat, larger impact can be generated, and the sealing performance of the safety valve is damaged. When the high-pressure safety valve is verified by taking water as a medium, sound and air flow can be avoided, and only a small amount of water is discharged from the outlet of the safety valve; the impact generated by the valve clack returning to the seat of the safety valve acts on the water film generated on the sealing surface, so that the impact on the sealing surface is reduced, and the sealing performance of the safety valve is favorably maintained. And the safety valve with the working medium as liquid needs to be verified by using water as a verification medium so as to ensure the accuracy of verification. The water medium safety valve calibration system of the original design has the following disadvantages when in use: due to incompressibility of water, pressure in the verification system fluctuates violently, the verification pressure is difficult to adjust and read finely, technical requirements on operators are high, and accuracy of a final verification result is affected due to large pressure fluctuation. After the verification is finished, the water medium in the system is stored for a long time, deposited and deteriorated to cause the blockage in the pipeline to rust. The safety valve is not easy to detach in the process of calibration, and is inconvenient to replace, and the pretightening force of the pneumatic pressing mechanism is low, so that the safety seal cannot be ensured when the pressure of the tested safety valve is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high pressure water medium relief valve calibration system to solve the problem that proposes among the above-mentioned background art.
The utility model aims at realizing through the following technical scheme: a high-pressure water medium safety valve calibration system comprises a calibration hydraulic output mechanism, a calibration control mechanism and a safety valve clamping mechanism, wherein the calibration hydraulic output mechanism, the calibration control mechanism and the safety valve clamping mechanism are connected through a high-pressure pipeline;
the hydraulic pressure output mechanism comprises an electric high-pressure water pump, a hydraulic energy accumulator, a compressed air source, a pressure transmitter, a high-pressure purging ball valve, a high-pressure overflow ball valve and a high-pressure liquid discharge ball valve, the whole hydraulic pressure output mechanism is of a box structure and is positioned in the box body, the hydraulic energy accumulator is fixedly arranged in the box body, one side of the hydraulic energy accumulator is fixedly connected with the electric high-pressure water pump through a high-pressure pipeline, an overflow emptying pipeline is fixedly arranged on the side opposite to the electric high-pressure water pump, and the high-pressure overflow ball valve is fixedly arranged on the overflow emptying pipeline;
a high-pressure liquid discharge ball valve is arranged on a high-pressure pipeline connected with the checking control mechanism in the hydraulic energy accumulator;
the checking control mechanism comprises a checking pressure gauge, a boosting needle valve, a pressure gauge needle valve and a pressure relief needle valve, the checking control mechanism is connected with the hydraulic energy accumulator in the checking hydraulic output mechanism through a high-pressure pipeline, the checking pressure gauge is fixed on the vertical high-pressure pipeline, the pressure gauge needle valve is arranged below the high-pressure pipeline, a horizontal high-pressure pipeline arranged in the checking control mechanism is communicated with the vertical high-pressure pipeline, the boosting needle valve is arranged on the horizontal high-pressure pipeline, and the pressure relief needle valve is fixedly arranged at the tail end of the vertical high-pressure pipeline;
and a horizontal high-pressure pipeline in the verification control mechanism extends into the safety valve clamping mechanism and is connected with the safety valve.
Furthermore, an electric high-pressure water pump arranged in the checking hydraulic output mechanism extends out of the box body through a high-pressure pipeline and is connected with a purified water source pipeline.
Furthermore, the upper end of the hydraulic energy accumulator arranged in the checking hydraulic output mechanism extends out of the box body through a high-pressure pipeline and is fixedly connected with a compressed air source;
a high-pressure blowing ball valve is fixedly arranged on a high-pressure pipeline positioned at the upper end of the hydraulic energy accumulator;
and a pressure transmitter and a safety valve are fixedly arranged on a high-pressure pipeline at the upper end of the hydraulic energy accumulator.
Further, the pressure transmitter is connected with the electric high-pressure water pump through a pressure transmitter feedback control line.
Furthermore, relief valve fixture includes panel beating box, fixed block, fixed cardboard, elevating system, the inside cavity of panel beating box, and be located fixed opening has the mounting hole on the panel beating box up end, is located the fixed elevating system that is equipped with in the panel beating box.
Furthermore, a working table top made of a thick steel plate is mounted on the upper end face of the sheet metal box body, fixed blocks are uniformly distributed on the working table top along the circumference of the mounting hole, and the fixed blocks are fixed on the upper end face of the sheet metal box body through screw connection;
the fixed block is rectangular and is positioned on the fixed block, and a sliding groove is formed in the fixed block.
Furthermore, the spout is the character cut in bas-relief form, and is located the spout and inlays through the slider and be connected fixed cardboard, and fixed cardboard is 7 characters form.
Furthermore, the lifting mechanism is a hydraulic lifter, the lifting mechanism extends out of the position of the mounting hole, a safety valve is mounted on the upper end face of the lifting mechanism, and a flange arranged at the bottom of the safety valve is clamped and fixed through a fixing clamping plate.
Compared with the prior art, the beneficial effects of the utility model are that: the lifting height of the corresponding safety valve can be controlled by setting hydraulic lifting, and when the safety valve is used, the size of the corresponding safety valve can be changed by moving the fixing clamping plate in the sliding groove, so that the safety valve is convenient to replace and disassemble; the system pressure is rapidly reduced after the safety valve is opened by using water as a medium verification safety valve, the system is safer compared with gas medium verification, the high-pressure electric water pump controlled by the pressure transmitter in a feedback mode maintains the pressure in the system to be stable, and the defect that the pressure of a water medium verification medium is difficult to stabilize is overcome. Meanwhile, the special purging pipeline is arranged, so that the running stability of the equipment is ensured.
Drawings
FIG. 1 is a schematic view of the overall framework of the present invention;
FIG. 2 is a top view of the clamping mechanism of the built-in safety valve of the present invention;
fig. 3 is a schematic sectional view of the clamping mechanism of the safety valve of the present invention.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
As shown in fig. 1-3, a high-pressure water medium safety valve calibration system comprises a calibration hydraulic output mechanism 1, a calibration control mechanism 2, and a safety valve clamping mechanism 3, wherein the calibration hydraulic output mechanism 1, the calibration control mechanism 2, and the safety valve clamping mechanism 3 are connected through a high-pressure pipeline;
the hydraulic checking output mechanism 1 comprises an electric high-pressure water pump 11, a hydraulic energy accumulator 12, a compressed air source 13, a pressure transmitter 14, a high-pressure purging ball valve 15, a high-pressure overflow ball valve 16 and a high-pressure liquid discharging ball valve 17, the whole hydraulic checking output mechanism 1 is of a box structure, the hydraulic energy accumulator 12 is fixedly arranged in the box, one side of the hydraulic energy accumulator 12 is fixedly connected with the electric high-pressure water pump 11 through a high-pressure pipeline, an overflow emptying pipeline is fixedly arranged on the side opposite to the electric high-pressure water pump 11, and the high-pressure overflow ball valve 16 is fixedly arranged on the overflow emptying pipeline;
the checking control mechanism 2 comprises a checking pressure gauge 21, a boosting needle valve 22, a pressure gauge needle valve 23 and a pressure relief needle valve 24, the checking control mechanism 2 is connected with the hydraulic energy accumulator 12 in the checking hydraulic output mechanism 1 through a high-pressure pipeline, the checking pressure gauge 21 is fixed on the vertical high-pressure pipeline, the pressure gauge needle valve 23 is arranged below the high-pressure pipeline, the horizontal high-pressure pipeline arranged in the checking control mechanism 2 is communicated with the vertical high-pressure pipeline, the boosting needle valve 22 is arranged on the horizontal high-pressure pipeline, and the pressure relief needle valve 24 is fixedly arranged at the tail end of the vertical high-pressure pipeline;
and a horizontal high-pressure pipeline in the verification control mechanism 2 extends into the safety valve clamping mechanism 3 and is connected with the safety valve.
In order to supply water through a purified water source in a using state, the utility model discloses advance an optimal technical scheme to do, the electronic high pressure water pump 11 that sets up in the check-up hydraulic output mechanism 1 extends to outside the box and 18 pipe connections with the purified water source through high pressure line.
In order to ensure that the residual water in the system can be purged and discharged and the control pressure can be displayed after the verification is finished, the novel further preferable technical scheme is that the upper end of the hydraulic energy accumulator 12 arranged in the verification hydraulic output mechanism 1 extends out of the box body through a high-pressure pipeline and is fixedly connected with a compressed air source 13;
a high-pressure purge ball valve 15 is fixedly arranged on a high-pressure pipeline at the upper end of the hydraulic energy accumulator 12;
and a pressure transmitter 14 and a safety valve are fixedly arranged on a high-pressure pipeline at the upper end of the hydraulic energy accumulator 12.
The pressure transmitter 14 is connected with the electric high-pressure water pump 11 through a pressure transmitter feedback control line.
In order to effectively fix corresponding safety, this novel further preferred technological effect does, relief valve fixture 3 includes panel beating box 31, fixed block 32, fixed cardboard 33, elevating system 34, the inside cavity of panel beating box 31, and be located fixed opening has the mounting hole on the panel beating box 31 up end, is located panel beating box 31 internal fixation is equipped with elevating system 34.
In order to ensure that the fixed pressure plate can slide through the fixed block in a use state so as to enlarge the diameter of the fixed safety valve, the novel further preferred technical scheme is that a working table made of a thick steel plate is installed on the upper end face of the sheet metal box body 31, the fixed blocks 32 are distributed on the working table along the circumference of the installation hole, and the fixed blocks 32 are fixedly connected to the upper end face of the sheet metal box body 31 through screws;
the fixing block 32 is rectangular, and a sliding groove is formed in the fixing block 32.
In order to fix corresponding relief valve flange through fixed cardboard for the sake of convenience, this novel further preferred technical scheme, the spout is concave character form, and is located the spout and inlays through the slider and be connected fixed cardboard 33, and fixed cardboard 33 is 7 characters form.
The lifting mechanism 34 is a hydraulic lifter, the lifting mechanism 34 extends out of the position of the mounting hole, a safety valve is mounted on the upper end face of the lifting mechanism 34, and a flange arranged at the bottom of the safety valve is clamped and fixed through a fixing clamping plate 33.
The diameter of the fixed safety valve flange can be changed through the sliding of the fixed clamping plate in the sliding groove, the safety valve flange is abutted through the hydraulic lifter when the safety valve flange is used, and when the hydraulic lifter ascends, the safety valve flange is abutted through the clamping plate to be fixed.
The checking hydraulic output mechanism 1, the checking control mechanism 2 and the safety valve clamping mechanism 3 are all fixed in the sheet metal box body.
The novel system consists of three parts: a check water pressure output part: and a checking aqueous medium with certain pressure is provided for checking the safety valve. The high-pressure water pump is controlled to work through the feedback of a pressure transmitter (an electric contact pressure gauge), so that the water pressure in the energy accumulator is always kept in a set range; a checking control mechanism: controlling the operation process of the verification, and displaying the verification pressure reading of the safety valve; relief valve fixture: the safety valve is clamped and fixed, and the inlet of the safety valve is sealed.
The novel working principle is as follows:
1. will be fixed in fixture by the centre gripping of check-up relief valve, guarantee that the relief valve import is sealed.
2. Setting the upper limit and the lower limit of the water pressure in the energy accumulator through a pressure transmitter (an electric contact pressure gauge) according to the setting pressure of the safety valve to be checked, opening a high-pressure overflow ball valve 16, determining the pressure, then starting the electric high-pressure water pump 11 to work, closing the high-pressure overflow ball valve 16 after water is discharged from an overflow port, continuing the work of the electric high-pressure water pump 11, stopping the work of the electric high-pressure water pump 11 after the pressure in the hydraulic energy accumulator 12 reaches the upper limit of the setting pressure, and finishing the checking preparation.
3. And (3) opening the high-pressure liquid discharge ball valve 17 and the pressure gauge needle valve 23, and then slowly opening the pressure boosting needle valve 22 to boost the pressure of the safety valve (at the moment, the pressure in the hydraulic energy accumulator 12 decreases, and if the pressure in the hydraulic energy accumulator 12 is lower than the set pressure lower limit, the electric high-pressure water pump 11 automatically starts to work until the pressure in the hydraulic energy accumulator 12 reaches the set pressure upper limit.). The pressure-increasing speed is controlled by the opening degree of the pressure-increasing needle valve 22. And observing a safety valve check pressure gauge, wherein when the checked safety valve is opened, the reading displayed by the pressure gauge is the actual setting pressure of the current checked safety valve. And comparing the pressure reading with the required setting pressure, and judging whether the safety valve is qualified. After the safety valve is opened, the pressure-increasing needle valve 22 is closed, the pressure-releasing needle valve 24 is opened, and after the reading of the pressure gauge 21 to be verified returns to zero, the pressure-releasing needle valve 24 is closed.
4. And (4) repeating the boosting operation of the step (3) for second verification, and completing the verification of the safety valve after the verification which is qualified for the third time is completed.
5. And opening a safety valve pressing plate, and taking down the safety valve to be verified.
After the novel calibration is completed, residual water in the system can be discharged by purging, and the operation method comprises the following steps: closing the electric high-pressure water pump 11, opening the high-pressure overflow ball valve 16, discharging residual pressure in the hydraulic energy accumulator 12, and then closing the high-pressure overflow ball valve 16; opening the high-pressure liquid discharge ball valve 17, the boosting needle valve 22 and the pressure relief needle valve 24 in sequence, then opening the high-pressure purging ball valve 15, and blowing off residual moisture in the system by using compressed air as power; the high-pressure purge ball valve 15 is closed, then the high-pressure liquid discharge ball valve 17 is closed, the pressure boosting needle valve 22 is closed, and the pressure relief needle valve 24 is opened.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a high pressure water medium relief valve calibration system which characterized in that: the checking system comprises a checking hydraulic output mechanism (1), a checking control mechanism (2) and a safety valve clamping mechanism (3), wherein the checking hydraulic output mechanism (1), the checking control mechanism (2) and the safety valve clamping mechanism (3) are connected through a high-pressure pipeline;
the hydraulic checking and checking mechanism (1) comprises an electric high-pressure water pump (11), a hydraulic energy accumulator (12), a compressed air source (13), a pressure transmitter (14), a high-pressure sweeping ball valve (15), a high-pressure overflow ball valve (16) and a high-pressure liquid drainage ball valve (17), the whole checking and checking hydraulic outputting mechanism (1) is of a box structure, the hydraulic energy accumulator (12) is fixedly arranged in the box, one side of the hydraulic energy accumulator (12) is fixedly connected with the electric high-pressure water pump (11) through a high-pressure pipeline, an overflow emptying pipeline is fixedly arranged on the side opposite to the electric high-pressure water pump (11), and the high-pressure overflow ball valve (16) is fixedly arranged on the overflow emptying pipeline;
a high-pressure liquid discharge ball valve (17) is arranged on a high-pressure pipeline connected with the calibration control mechanism (2) in the hydraulic energy accumulator (12);
the checking control mechanism (2) comprises a checking pressure gauge (21), a boosting needle valve (22), a pressure gauge needle valve (23) and a pressure relief needle valve (24), the checking control mechanism (2) is connected with the hydraulic energy accumulator (12) in the checking hydraulic output mechanism (1) through a high-pressure pipeline, the checking pressure gauge (21) is fixed on the vertical high-pressure pipeline, the pressure gauge needle valve (23) is arranged below the high-pressure pipeline, the horizontal high-pressure pipeline arranged in the checking control mechanism (2) is communicated with the vertical high-pressure pipeline, the boosting needle valve (22) is arranged on the horizontal high-pressure pipeline, and the pressure relief needle valve (24) is fixedly arranged at the tail end of the vertical high-pressure pipeline;
and a horizontal high-pressure pipeline in the verification control mechanism (2) extends into the safety valve clamping mechanism (3) and is connected with the safety valve.
2. The high pressure hydraulic medium safety valve verification system of claim 1, wherein: an electric high-pressure water pump (11) arranged in the checking hydraulic output mechanism (1) extends out of the box body through a high-pressure pipeline and is connected with a purified water source (18) through a pipeline.
3. The high pressure hydraulic medium safety valve verification system of claim 1, wherein: the upper end of the hydraulic energy accumulator (12) arranged in the checking hydraulic output mechanism (1) extends out of the box body through a high-pressure pipeline and is fixedly connected with a compressed air source (13);
a high-pressure pipeline positioned at the upper end of the hydraulic energy accumulator (12) is fixedly provided with a high-pressure purging ball valve (15);
and a pressure transmitter (14) and a safety valve are fixedly arranged on a high-pressure pipeline at the upper end of the hydraulic energy accumulator (12).
4. A high pressure hydraulic medium safety valve verification system as claimed in claim 3, wherein: the pressure transmitter (14) is connected with the electric high-pressure water pump (11) through a pressure transmitter feedback control line.
5. The high pressure hydraulic medium safety valve verification system of claim 1, wherein: safety valve fixture (3) include panel beating box (31), fixed block (32), fixed cardboard (33), elevating system (34), panel beating box (31) inside cavity, and be located fixed opening has the mounting hole on panel beating box (31) up end, is located panel beating box (31) internal fixation is equipped with elevating system (34).
6. The high pressure hydraulic medium safety valve verification system of claim 5, wherein: a working table top made of a thick steel plate is mounted on the upper end face of the sheet metal box body (31), fixed blocks (32) are uniformly distributed on the working table top along the circumference of the mounting hole, and the fixed blocks (32) are fixedly connected to the upper end face of the sheet metal box body (31) through screws;
the fixed block (32) is rectangular, and a sliding groove is formed in the fixed block (32).
7. The high pressure hydraulic medium safety valve verification system of claim 6, wherein: the sliding groove is in a concave shape, the sliding groove is positioned in the sliding groove and connected with a fixed clamping plate (33) in an embedded mode through a sliding block, and the fixed clamping plate (33) is in a 7-shaped shape.
8. The high pressure hydraulic medium safety valve verification system of claim 5, wherein: the lifting mechanism (34) is a hydraulic lifter, the lifting mechanism (34) extends out of the position of the mounting hole, the safety valve is arranged on the upper end face of the lifting mechanism (34), and a flange arranged at the bottom of the safety valve is clamped and fixed through a fixing clamping plate (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121562552.3U CN214894040U (en) | 2021-07-09 | 2021-07-09 | High-pressure water medium safety valve calibration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121562552.3U CN214894040U (en) | 2021-07-09 | 2021-07-09 | High-pressure water medium safety valve calibration system |
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| Publication Number | Publication Date |
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| CN214894040U true CN214894040U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121562552.3U Active CN214894040U (en) | 2021-07-09 | 2021-07-09 | High-pressure water medium safety valve calibration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235385A (en) * | 2022-01-19 | 2022-03-25 | 浙江嘉隆机械设备有限公司 | Multifunctional valve comprehensive test bench and safety valve test method |
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2021
- 2021-07-09 CN CN202121562552.3U patent/CN214894040U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235385A (en) * | 2022-01-19 | 2022-03-25 | 浙江嘉隆机械设备有限公司 | Multifunctional valve comprehensive test bench and safety valve test method |
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