CN207848066U - A kind of spring safety valve debugging apparatus - Google Patents
A kind of spring safety valve debugging apparatus Download PDFInfo
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- CN207848066U CN207848066U CN201721106677.9U CN201721106677U CN207848066U CN 207848066 U CN207848066 U CN 207848066U CN 201721106677 U CN201721106677 U CN 201721106677U CN 207848066 U CN207848066 U CN 207848066U
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- safety valve
- pressure
- valve
- hydraulic cylinder
- holder
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Abstract
The utility model is related to a kind of spring safety valve debugging apparatus, the device can carry out the on-line debugging of spring safety valve, verification, it includes data processor, load cell, displacement transducer, pressure transmitter, hydraulic cylinder, holder, piston, universal nut, pull rod, high-pressure oil pump etc..Hydraulic cylinder, holder are mounted on the adjustment screw of safety valve, and dynamometry transmitter is placed on hydraulic cylinder, and pull rod passes through the valve rod of hydraulic cylinder and safety valve to be rigidly connected, and displacement transducer is fixed on holder.When verification, high-pressure medium is injected into hydraulic cylinder by high-pressure oil pump, piston driving valve rod moves up, and the displacement signal of valve opening, valve rod pulling force, container pressure data incoming data processor are accurately calculated the set-pressure and spring adjustment amount of safety valve by measuring cell；Displacement of valve rod is detected by displacement sensor in checking procedure, to judge the unlatching of valve.The utility model has the advantages that device can the set-pressure online, with pressure that accurately measure spring safety valve, and accurately, reliably carry out according to measurement result the debugging of safety valve, verification.
Description
Technical field
The utility model is related to a kind of spring safety valve debugging apparatus, which is mainly used for various specifications spring and directly makees
With the on-line debugging of formula safety valve set pressure, verification, it is ensured that the accuracy of set-pressure when safety valve on-line testing.
Background technology
Existing spring safety valve on-line testing device general structure is simple, only judges whether valve is opened by listening
It opens, the set-pressure adjustment accuracy of safety valve is poor, and the experience and qualification relationship with operator are very big, and operating process
It is complicated.
Patent of invention (the patent No.：101368883 B of CN) on-line check method for safety valve introduction device by detect it is defeated
Enter piston cylinder pressure medium and calculate the pulling force that safety valve is subject to, has ignored the frictional force of piston, the pulling force of detection is bigger than normal；Device position
Displacement sensor does not detect the displacement of safety valve valve rod directly, whether the displacement by detecting piston rod judges valve opening,
Though valve rod is rigidly connected with piston rod, before valve rod movement, piston rod can generate microdisplacement by valve rod relatively, accordingly, it is possible to meeting
Judge the unlatching of valve by accident.
The utility model directly detects the pulling force suffered by safety valve valve rod using load cell, passes through displacement transducer
Displacement of valve rod is directly detected, data processor is three-channel processing device, can receive simultaneously, handle load cell, shift transmission
The data of device, pressure transmitter can accurately calculate set-pressure when safety valve is opened.
Invention content
The purpose of this utility model is to provide a kind of spring safety valve debugging apparatus, safe and accurate, easily carry out safety
The adjustment of valve set-pressure.
The technical solution of the utility model is to provide a kind of spring safety valve debugging apparatus, it include attaching nut, holder,
Hydraulic cylinder, piston, blind flange, load cell, universal nut, pull rod, displacement transducer, fixed frame, stroke baffle, triple channel
Data processor, pressure transmitter, high-pressure oil pipe, high-pressure oil pump.It is characterized in that：Holder is directly placed at the adjustment spiral shell of safety valve
On silk, hydraulic cylinder is placed on holder, and load cell is placed on piston, and safety valve valve rod is rigid by attaching nut with pull rod
Property connection, screwing universal nut is transmitted to pulling force suffered by safety valve valve rod on pressure transmitter, measures suffered by safety valve valve rod
Pulling force；Displacement transducer is fixed on holder, and stroke baffle is rigidly connected with safety valve valve rod, and displacement transducer measures safety valve
The displacement of valve rod simultaneously passs signal to Three-channel data processor, judges whether safety valve is opened accordingly.High-pressure oil pipe is by hydraulic pressure
Cylinder is connect with high-pressure oil pump.When verification, high-pressure medium is injected by hydraulic cylinder by high-pressure oil pump, on piston driving safety valve valve rod
It moves, valve opening, and the data of displacement transducer, load cell, pressure transmitter is passed to Three-channel data processor, essence
The set-pressure of safety valve really is calculated, and is adjusted according to desired set-pressure, to complete the school of spring safety valve
It tests.
The utility model has the beneficial effects that：Debugging apparatus can the reality online, with pressure that accurately measure spring safety valve
Set-pressure, easy, reliable, to be accurately finished spring safety valve debugging, verification.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of spring safety valve debugging apparatus
In figure, 1. adjustment screws, 2. attaching nuts, 3. holders, 4. hydraulic cylinders, 5. pistons, 6. blind flanges, 7. force-measuring sensings
Device, 8. universal nuts, 9. pull rods, 10. displacement transducers, 11. fixed frames, 12. stroke baffles, 13. Three-channel data processors,
14. safety valve valve rod, 15. pressure transmitters, 16. high-pressure oil pipes, 17. high-pressure oil pumps
Specific implementation mode
In the embodiment shown in fig. 1, holder is placed on the adjustment screw of safety valve, and hydraulic cylinder is placed on holder, dynamometry
Sensor is placed on piston, and safety valve valve rod passes through hydraulic cylinder to be rigidly connected by attaching nut and pull rod, screws universal spiral shell
Mother compresses load cell.When safety valve is opened, load cell can accurately measure the pulling force that valve rod is subject to.
Displacement transducer is fixed on holder, and stroke baffle is rigidly connected with safety valve valve rod, adjustment displacement transducer position
It sets, transmitter is made to be contacted with stroke baffle, ensure the accurate actual displacement amount for measuring safety valve valve rod.Pass through the displacement of valve rod
To judge whether safety valve is opened.
Pressure transmitter is connect with the pressure vessel of installation safety valve, pressure medium that can be in real―time precision measurment container.
Load cell, displacement transducer, pressure transmitter data line connect with Three-channel data processor, at data
Reason device can accurately receive, handle the data such as the displacement of safety valve, valve rod under tension, pressure medium in container in real time.
Before safety valve testing, data line handles displacement transducer, pressure transmitter, load cell and Three-channel data
Device is connected, and is connected hydraulic cylinder and high-pressure oil pump by high-pressure oil pipe.
When safety valve testing, high-pressure medium is injected hydraulic cylinder by hydraulic pump, after pressure medium reaches certain value, piston band
Ovable valve stem moves up, valve opening, and valve opening signal is passed to Three-channel data processor by displacement transducer, and data processor is same
When will collect the data such as valve rod pulling force, vessel media pressure and be stored, handled, accurately calculate safety valve adjusts pressure
Power, and according to the valve parameter of input, safety valve set pressure, spring adjustment amount is calculated, valve adjustment is carried out, until reaching
It is required that set-pressure.
Claims (1)
1. a kind of spring safety valve debugging apparatus, it is characterised in that：It include attaching nut (2), holder (3), hydraulic cylinder (4),
Piston (5), blind flange (6), load cell (7), universal nut (8), pull rod (9), displacement transducer (10), fixed frame
(11), stroke baffle (12), Three-channel data processor (13), pressure transmitter (15), high-pressure oil pipe (16), high-pressure oil pump
(17), hydraulic cylinder (4) is connect by high-pressure oil pipe (16) with high-pressure oil pump (17)；Holder (3) is directly placed at the adjustment of safety valve
On screw (1), hydraulic cylinder (4) is placed on holder (3), and load cell (7) is placed on piston (5), safety valve valve rod
(14) it is rigidly connected by attaching nut (2) with pull rod (9), screws universal nut (8) by pulling force suffered by safety valve valve rod (14)
It is transmitted on pressure transmitter (15)；Displacement transducer (10) is fixed on holder (3), stroke baffle (12) and safety valve valve rod
(14) it is rigidly connected；Displacement transducer (10) measures the displacement of safety valve valve rod (14) and passs signal to Three-channel data processing
Device (13)；When verification, displacement transducer (10), load cell (7), pressure transmitter (15) data be passed to Three-channel data
Processor (13), calculates the set-pressure of safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106677.9U CN207848066U (en) | 2017-08-24 | 2017-08-24 | A kind of spring safety valve debugging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721106677.9U CN207848066U (en) | 2017-08-24 | 2017-08-24 | A kind of spring safety valve debugging apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848066U true CN207848066U (en) | 2018-09-11 |
Family
ID=63425985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721106677.9U Active CN207848066U (en) | 2017-08-24 | 2017-08-24 | A kind of spring safety valve debugging apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN207848066U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605823A (en) * | 2017-08-24 | 2018-01-19 | 哈电集团哈尔滨电站阀门有限公司 | A kind of spring safety valve debugging apparatus |
| CN113984309A (en) * | 2021-10-20 | 2022-01-28 | 北京航天石化技术装备工程有限公司 | Safety valve spring failure detection system and method |
| CN114088269A (en) * | 2021-10-13 | 2022-02-25 | 中核核电运行管理有限公司 | Online measuring device for friction force of piston of pilot type safety valve control cabinet |
-
2017
- 2017-08-24 CN CN201721106677.9U patent/CN207848066U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605823A (en) * | 2017-08-24 | 2018-01-19 | 哈电集团哈尔滨电站阀门有限公司 | A kind of spring safety valve debugging apparatus |
| CN114088269A (en) * | 2021-10-13 | 2022-02-25 | 中核核电运行管理有限公司 | Online measuring device for friction force of piston of pilot type safety valve control cabinet |
| CN113984309A (en) * | 2021-10-20 | 2022-01-28 | 北京航天石化技术装备工程有限公司 | Safety valve spring failure detection system and method |
| CN113984309B (en) * | 2021-10-20 | 2023-09-29 | 北京航天石化技术装备工程有限公司 | Safety valve spring failure detection system and method |
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