CN106323624A - Safety valve action performance test device with pressure boosting function and test method - Google Patents
Safety valve action performance test device with pressure boosting function and test method Download PDFInfo
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- CN106323624A CN106323624A CN201611067034.8A CN201611067034A CN106323624A CN 106323624 A CN106323624 A CN 106323624A CN 201611067034 A CN201611067034 A CN 201611067034A CN 106323624 A CN106323624 A CN 106323624A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a safety valve action performance test device with a pressure boosting function and a test method. The test device comprises a steam supply system, the steam supply system is connected with an energy storage system, the energy storage system is connected with a pressure stabilizing system and a temperature and pressure reducing system, the pressure stabilizing system is connected with a pressure stabilizer safety valve, and the temperature and pressure reducing system is connected with the pressure stabilizing system. According to the device and the method, the test device is compact in structure and capable of continuously carrying out a long-time test and is applied to a test system for testing the action performance of the safety valve under the steam condition to verify the design indexes and performance parameters of the safety valve, a basis is provided for design improvement and engineering application of the safety valve, and the test can be carried out with various methods to meet the requirement of the safety valve action performance test standard for the pressure boosting rate and switching-on time.
Description
Technical field
The invention belongs to the thermodynamic test research field of relief valve, be specifically related to a kind of safe valve actuation that can carry out and boosting
Make performance test apparatus and test method.
Background technology
Relief valve is extensive application on the devices such as boiler, pressure vessels and pipes equipment, and nominal situation is in normally closed
State, after equipment or manifold pressure exceed a certain rated value, relief valve will be opened, and discharge interior media is to prevent pressure mistake
Height causes device damage and security incident.
After system pressure reaches desired value, can relief valve be opened smoothly, and can system pressure closedown etc. smoothly after reducing
A series of valve performance parameters, if meet its design requirement, it is necessary to verified by test, therefore at relief valve
In R&D process and before engineer applied, the test of its performance is requisite link.The main purpose of test is to survey
Test card relief valve performance parameter, including set-pressure, discharge pressure, blow pressure, the opening time, Lift,
The repeatability of valve event, sealing property, valve mechanical property etc., provide experiment to depend on for safety valve structure optimization and design typification
According to.To this end, designing and build a set of test/certificate test system is one of necessary requirement realizing relief valve research and development and application.
It is complex to there is many deficiencies, such as whole system in existing pilot system, and container volume requires relatively big, builds
Higher with use cost；When carrying out test continuously, need the longer time to debug, set up target operating condition, cause test week
Phase and relatively costly；(fuel oil) boiler is the task equipment of pilot system, and the facility such as fuel, water process is indispensable, construction period length,
Running operation complexity, costly, the test of interruption is easily caused that steam generator system is aging and seriously corroded for construction cost and regular maintenance.
Summary of the invention
The technical problem to be solved is that existing test system architecture is complicated, test period and relatively costly, behaviour
Make complicated and test accuracy rate is low, it is provided that a kind of performance of safety valve assay device that can carry out boosting and test side
Method, this device and method compact conformation, can carry out the assay device of long-time test continuously, is applied to test relief valve at steam
Under the conditions of performance pilot system, the checking design objective of relief valve and performance parameter, for the design of relief valve improve with
And engineer applied provides foundation, multiple method can be used to carry out test, to meet performance of safety valve test standard to boosting
Speed and open-interval requirement.
The present invention is achieved through the following technical solutions:
A kind of performance of safety valve assay device that can carry out boosting and test method, including steam supply system,
Described steam supply system connects energy-storage system, and energy-storage system connects voltage-stabilizing system and temperature reducing and pressure reducing system, voltage-stabilizing system
Connect and have pressurizer safety valve, and temperature reducing and pressure reducing system is connected with voltage-stabilizing system.It is directed to existing pressurizer safety valve test/inspection
Determining to there is whole system in pilot system complex, container volume requires relatively big, builds and use cost is higher；Open continuously
During exhibition test, need the longer time to debug, set up target operating condition, cause test period and relatively costly；(fuel oil) pot
Stove is the task equipment of pilot system, and the facility such as fuel, water process is indispensable, construction period length, runs operation complexity, construction cost
With regular maintenance costly, the test of interruption is easily caused the aging situation with seriously corroded of steam generator system, the energy of this programme design
Enough performance of safety valve assay device and test methods carrying out boosting, this device and method is that set of system is compact, can connect
The continuous assay device carrying out long-time test, can use multiple method to carry out test, to meet performance of safety valve test mark
Accurate to rate of pressure rise and open-interval requirement, by the way of boosting, realize the mensuration to pressurizer safety valve, test standard
Really rate is high, and assay device simple in construction, easy to operate, its test period and cost are the most relatively low, and equipment is difficult to corrosion occur,
Maintenance or replacing parts are also convenient for.
Steam supply system is 600MWe heat power plant boiler and relevant corollary system, draws one from power station main steam pipe
Bar branch road is as the steam supply of pilot system.Energy-storage system includes accumulator, is provided with heat exchanger one, and heat exchange in accumulator
Device one is connected with steam supply system and temperature reducing and pressure reducing system simultaneously, and is additionally provided with heater one in accumulator.Use
10m3Pressure vessel as accumulator, can be system provide energy output.It is built-in to water-to-water heat exchanger, can be in process of the test
Middle safe moisturizing, it is also possible to utilize steam to heat working medium in container, it is ensured that test duration is carried out, shortens test week
Phase.It is internally provided with electrical heating elements, is used for adding thermal medium and reaches target operating condition.
Voltage-stabilizing system includes manostat, is provided with heat exchanger two in manostat, and heat exchanger two simultaneously with pressure and temperature reducing system
System and heat exchanger one connect, and are additionally provided with heater two in manostat.Use 5m3Pressure vessel as voltage stabilizing fill
Put, parameter stability before guarantee test part relief valve valve.It is built-in to water-to-water heat exchanger, can in process of the test the benefit of safety
Water, it is also possible to utilize steam to heat working medium in container, it is ensured that test duration is carried out, shortens the test period.Internal setting
There is electrical heating elements, be used for adding thermal medium and reach target operating condition.
Temperature reducing and pressure reducing system includes water tank and desuperheat water pump, and water tank is connected with desuperheat water pump, and desuperheat water pump is simultaneously and heat exchange
Device one and heat exchanger two connect.Temperature reducing and pressure reducing system is existing structure, it is possible to be the most directly commercially available, and desuperheat water pump is excellent
Carrying out pressure and temperature reducing process wherein after electing plunger displacement pump, steam and water mixing as, water tank is for containing liquid, by main steam
Realize pressure and temperature reducing after being mixed with main steam by the liquid in plunger displacement pump extraction water tank during introducing and enter back into steam-water separator, post
Plug pump is desuperheat water pump.
Be provided with regulation valve group between energy-storage system and voltage-stabilizing system, and regulation valve group simultaneously with energy-storage system and voltage stabilizing system
System connects.Regulation valve group is the valve group composition with regulatory function that many groups are arranged side by side, for entering energy-storage system and voltage-stabilizing system
Row regulation, carries out selectivity opening and closing as required.
Pressurizer safety valve connects deafener.Owing to there is certain speed by the rear steam that spurts of pressurizer safety valve
Degree and impulsive force, even can produce sonic boom, causes noise pollution or other harm, and this programme, by arranging deafener, eliminates
Air power noise, reduces noise and produces.
This device further provided with the most electrically, instrument, number adopt control system, it is ensured that system is run and controlled and test data
Gather.System is also equipped with physics emergency power off button, can in the case of program mal quick closedown electrical heating elements to prevent
System overpressure, is equipped with relief valve for each pressure vessel simultaneously, the safety of further lifting device, these parts and
Its control process is all existing structure, it is possible to be the most directly commercially available.
A kind of performance of safety valve test method that can carry out boosting, it can be accomplished by:
(1) during the steam of steam supply system enters accumulator, then enter manostat through overregulating valve group, control to adjust valve
The aperture of group, makes the pressure in manostat rise, and after reaching valve release pressure, experimental safe valve is opened, and steam passes through testpieces
Pressurizer safety valve spurts, and eventually passes through deafener and discharge；
(2) water in water tank is in desuperheating water infusion enters accumulator and manostat, closes desuperheating water after reaching predetermined fluid level
Pump and valve, start heater one and heater two, after pressure reaches desired value i.e. goal pressure one, closes regulation valve group,
Heater two heats, and in accumulator, pressure and temp continues to rise, when energy storage pressure rises to desired value i.e. goal pressure
After two, heater one heats, according to the rate of pressure rise of requirement of experiment, select to open the valve of corresponding size in regulation valve group
Door, during now in accumulator, steam enters manostat, manostat pressure rises therewith, reaches experimental safe after valve release pressure
Valve is opened, and steam is spurted by testpieces pressurizer safety valve, and eventually passes through deafener and discharge；
(3) water in water tank is in desuperheating water infusion enters accumulator and manostat, closes desuperheating water after reaching predetermined fluid level
Pump and valve, regulation valve group is held open, and starts heater one and heater two, after system pressure reaches valve release pressure
Experimental safe valve is opened, and steam is spurted by testpieces relief valve, and eventually passes through deafener and discharge, in needs moisturizing
Time, normal-temperature water is injected heat exchanger one and heat exchanger two by desuperheat water pump, controls desuperheating water pump operation frequency and valve opening, protects
Card feed temperature and the working medium temperature difference in container, less than 150 DEG C, so make to be rapidly achieved experimental condition during test.
Pass through this method, it is possible to realizing the boost operations when pressurizer safety valve action test, it can carry out length continuously
Time tests, and in fashion described above any one can be made to carry out test, to meet performance of safety valve test standard to boosting speed
Rate and open-interval requirement, and it is the most accurate to test the result obtained, it is possible to the design objective of accurate validation relief valve and property
Energy parameter, design improvement and engineer applied for relief valve provide foundation, meet the use demand of nuclear power plant.
Multiple boosting mode regulation rate of pressure rise and pressure are held time, including electrical heating, high temperature accumulator, high pressure superheater
The modes such as steam is directly injected into, to meet performance of safety valve test standard to rate of pressure rise and open-interval requirement.Adopt
With built-in heat exchanger, both in the condition the most additionally increasing thermal source, high-pressure bottle can be carried out quick moisturizing, steaming can be utilized again
Vapour thermal source carries out auxiliary heating to working medium in container, it is to avoid the directly cryogen damage to container during moisturizing, shortens simultaneously
Test period.
The present invention compared with prior art, has such advantages as and beneficial effect: this device and method compact conformation, can
Carry out the assay device of long-time test continuously, be applied to test relief valve performance pilot system under steam condition,
The design objective of checking relief valve and performance parameter, design improvement and engineer applied for relief valve provide foundation, can use
Multiple method carries out test, to meet performance of safety valve test standard to rate of pressure rise and open-interval requirement.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is present configuration schematic diagram.
The parts title of labelling and correspondence in accompanying drawing:
1-water tank, 2-desuperheat water pump, 3-stop valve one, 4-stop valve two, 5-accumulator, 6-manostat, 7-regulates valve group,
8-pressurizer safety valve, 9-deafener, 10-heat exchanger one, 11-heat exchanger two, 12-steam supply system, 13-stop valve three,
14-stop valve four, 15-stop valve five, 16-heater one, 17-heater two.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment:
As it is shown in figure 1, a kind of performance of safety valve assay device that can carry out boosting and test method, its hardware is tied
Structure includes steam supply system 12, and described steam supply system 12 connects has energy-storage system, energy-storage system to include accumulator 5, stores
Device 5 can be provided with heat exchanger 1, and heat exchanger 1 is connected with steam supply system 12 and temperature reducing and pressure reducing system, stores simultaneously
Can be provided with heater 1 in device 5, voltage-stabilizing system includes manostat 6, is provided with heat exchanger 2 11, and heat exchange in manostat 6
Device 2 11 is connected with temperature reducing and pressure reducing system and heat exchanger 1 simultaneously, built-in to the design of water-to-water heat exchanger, test at high-pressure bottle
In without extra heat exchanger thermal source can fast and safely moisturizing, or use steam source working medium in container is carried out auxiliary to add
Heat, reduces construction use cost while simplified system, sustainable after moisturizing carry out test, is greatly shortened the test period.Surely
Being provided with heater 2 17 in depressor 6, and temperature reducing and pressure reducing system includes water tank 1 and desuperheat water pump 2, water tank 1 is with desuperheat water pump 2 even
Connecing, desuperheat water pump 2 is connected with heat exchanger 1 and heat exchanger 2 11 simultaneously, and manostat 6 connects pressurizer safety valve 8, voltage stabilizing
Device relief valve 8 connects deafener 9, is also provided with regulation valve group 7, and regulation valve group 7 between energy-storage system and voltage-stabilizing system
It is connected with energy-storage system and voltage-stabilizing system simultaneously.
A kind of performance of safety valve test method that can carry out boosting, it can be realized by following any-mode:
Steam direct injection: the steam of steam supply system 12 from heat power plant boiler draw after through stop valve three
13 enter in accumulator 5, then enter manostat 6 through overregulating valve group 7, and the aperture of control and regulation valve group 7, in making manostat 6
Pressure the most slowly rises, voltage stabilizing to be tested after reaching the valve release pressure being connected with pressurizer safety valve to be tested 8
Device relief valve 8 is opened, and steam is spurted by pressurizer safety valve 8 to be tested, and eventually passes through deafener 9 and discharge, and cuts
Only valve 4 14 is to enter directly in accumulator 5 or steam enters in heat exchanger 1 from accumulator 5 for controlling steam,
Stop valve 5 15 is to enter into heat exchanger 2 11 in manostat 6 for controlling steam；
Accumulator charging method: the deionized water in water tank 1, in desuperheat water pump 2 injects accumulator 5 and manostat 6, reaches
Close desuperheat water pump 2, stop valve 1 and stop valve 24 after predetermined fluid level, start heater 1 and heater 2 17, work as pressure
After power reaches desired value i.e. goal pressure one, closing regulation valve group 7, heater 2 17 carries out low-power heating, to maintain voltage stabilizing
The pressure and temp of device, in accumulator 5, pressure and temperature continues the most slowly to rise, when accumulator 5 pressure rises to desired value i.e.
After goal pressure two, heater 1 carries out low-power heating, maintains energy storage pressure temperature stabilization, according to the liter of requirement of experiment
Pressure speed, selects to open the valve of corresponding size in regulation valve group 7, during now steam enters manostat 6 in accumulator 5, voltage stabilizing
Device 6 pressure rises therewith, the manostat that the valve being connected with pressurizer safety valve 8 to be tested is to be tested after reaching release pressure
Relief valve 8 is opened, and steam is spurted by pressurizer safety valve 8 to be tested, and eventually passes through deafener 9 and discharge；
Electrical heating method: the deionized water in water tank 1, in desuperheat water pump 2 injects accumulator 5 and manostat 6, reaches predetermined
Closing desuperheat water pump 2, stop valve 1 and stop valve 24 after liquid level, regulation valve group 7 is held open, and starts heater 1 and adds
Hot device 2 17, makes system temperature and pressure the most slowly rise, when system pressure reaches with pressurizer safety valve to be tested 8 even
Pressurizer safety valve 8 to be tested after the valve release pressure connect is opened, and steam is sprayed by pressurizer safety valve 8 to be tested
Put, and eventually pass through deafener 9 and discharge.After test of many times, system will lose relatively multiple working medium, require supplementation with.Owing to being
System maintains high-temperature high-pressure state, directly supplements normal-temperature water and may produce water hammer, water injection pipe can be made to burst, cause peace under serious conditions
Full accident.To this end, native system devises heat exchanger 1 and the heat exchanger 2 11 of water supply, each in accumulator 5 and manostat 6
Built-in a set of, when needing moisturizing, normal-temperature water is injected heat exchanger 1 and heat exchanger 2 11 by desuperheat water pump 2, at heat exchanger helical
Pipeline is preheated by the high-temperature water in accumulator and manostat, controls desuperheat water pump 2 running frequency and stop valve 1 He
The aperture of stop valve 24, it is ensured that feed temperature and the working medium temperature difference in container are less than 150 DEG C.In in accumulator 5 and manostat 6
Put to the design of water-to-water heat exchanger, both avoided and increased extra heat exchanger thermal source, and made again system compacter, reduce to build using
Substantially increase the seriality of test while cost, shorten the test period.
The present invention can use various ways to carry out test, with meet performance of safety valve test standard to rate of pressure rise and
Open-interval requirement, uses built-in heat exchanger, in the condition the most additionally increasing thermal source, high-pressure bottle is carried out quick moisturizing, keeps away
Exempt from the cryogen damage to container during direct moisturizing so that system building cost and regular maintenance expense are greatly reduced, and contract simultaneously
The short test period, improve the economy of system.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (9)
1. can carry out the performance of safety valve assay device boosted, including steam supply system (12), its feature exists
In, described steam supply system (12) connects energy-storage system, and energy-storage system connects has voltage-stabilizing system and temperature reducing and pressure reducing system, surely
Pressure system connects pressurizer safety valve (8), and temperature reducing and pressure reducing system is connected with voltage-stabilizing system.
A kind of performance of safety valve assay device that can carry out boosting the most according to claim 1, it is characterised in that
Described energy-storage system includes accumulator (5), is provided with heat exchanger one (10) in accumulator (5), and heat exchanger one (10) simultaneously with
Steam supply system (12) and temperature reducing and pressure reducing system connect.
A kind of performance of safety valve assay device that can carry out boosting the most according to claim 2, it is characterised in that
Described accumulator (5) is provided with heater one (16).
4., according to a kind of performance of safety valve assay device that can carry out boosting described in Claims 2 or 3, its feature exists
In, described voltage-stabilizing system includes manostat (6), is provided with heat exchanger two (11), and heat exchanger two (11) is simultaneously in manostat (6)
It is connected with temperature reducing and pressure reducing system and heat exchanger one (10).
A kind of performance of safety valve assay device that can carry out boosting the most according to claim 4, it is characterised in that
Described manostat (6) is provided with heater two (17).
A kind of performance of safety valve assay device that can carry out boosting the most according to claim 5, it is characterised in that
Described temperature reducing and pressure reducing system includes water tank (1) and desuperheat water pump (2), and water tank (1) is connected with desuperheat water pump (2), desuperheat water pump (2)
It is connected with heat exchanger one (10) and heat exchanger two (11) simultaneously.
A kind of performance of safety valve assay device that can carry out boosting the most according to claim 1, it is characterised in that
Be provided with regulation valve group (7) between described energy-storage system and voltage-stabilizing system, and regulation valve group (7) simultaneously with energy-storage system and voltage stabilizing
System connects.
A kind of performance of safety valve assay device that can carry out boosting the most according to claim 1, it is characterised in that
Described pressurizer safety valve (8) connects deafener (9).
9. one kind can carry out the performance of safety valve test method boosted, it is characterised in that it can be in the following manner
Realize:
(1) during the steam of steam supply system (12) enters accumulator (5), then manostat (6) is entered through overregulating valve group (7),
The aperture of control and regulation valve group (7), makes the pressure in manostat (6) rise, reaches pressurizer safety valve after valve release pressure
(8) opening, steam is spurted by testpieces pressurizer safety valve (8), and eventually passes through deafener (9) and discharge；
(2) water in water tank (1) is in desuperheat water pump (2) injects accumulator (5) and manostat (6), closes after reaching predetermined fluid level
Close desuperheat water pump (2) and valve, start heater one (16) and heater two (17), when pressure reaches desired value i.e. goal pressure
After one, closing regulation valve group (7), heater two (17) heats, and in accumulator (5), pressure and temp continues to rise, and works as accumulation of energy
After device (5) pressure rises to desired value i.e. goal pressure two, heater one (16) heats, according to the boosting speed of requirement of experiment
Rate, selects to open the valve of corresponding size in regulation valve group (7), during now steam enters manostat (6) in accumulator (5), surely
Depressor (6) pressure rises therewith, and after reaching valve release pressure, pressurizer safety valve (8) is opened, and steam passes through testpieces voltage stabilizing
Device relief valve (8) spurts, and eventually passes through deafener (9) and discharge；
(3) water in water tank (1) is in desuperheat water pump (2) injects accumulator (5) and manostat (6), closes after reaching predetermined fluid level
Closing desuperheat water pump (2) and valve, regulation valve group (7) is held open, and starts heater one (16) and heater two (17), works as system
After pressure reaches valve release pressure, pressurizer safety valve (8) is opened, and steam is spurted by testpieces relief valve (8), and finally
Discharging through deafener (9), when needs moisturizing, normal-temperature water is injected heat exchanger one (10) and heat exchange by desuperheat water pump (2)
Device two (11), controls desuperheat water pump (2) running frequency and valve opening, it is ensured that feed temperature is less than with the working medium temperature difference in container
150℃。
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| CN201611067034.8A CN106323624B (en) | 2016-11-24 | 2016-11-24 | A kind of performance of safety valve experimental rig that can be boosted and test method |
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| CN201611067034.8A CN106323624B (en) | 2016-11-24 | 2016-11-24 | A kind of performance of safety valve experimental rig that can be boosted and test method |
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| CN106323624B CN106323624B (en) | 2018-09-11 |
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| CN115326380A (en) * | 2022-08-09 | 2022-11-11 | 中广核工程有限公司 | Steam thermal state test device for valve |
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Also Published As
| Publication number | Publication date |
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| CN106323624B (en) | 2018-09-11 |
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