CN106092535B - A kind of gas liquid two purpose performance of safety valve experimental rig and test method - Google Patents
A kind of gas liquid two purpose performance of safety valve experimental rig and test method Download PDFInfo
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- CN106092535B CN106092535B CN201610407259.7A CN201610407259A CN106092535B CN 106092535 B CN106092535 B CN 106092535B CN 201610407259 A CN201610407259 A CN 201610407259A CN 106092535 B CN106092535 B CN 106092535B
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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
Abstract
The present invention provides a kind of gas liquid two purpose performance of safety valve experimental rigs.There is provided a kind of gas safety valve set-pressures and action performance test method based on above-mentioned gas liquid two purpose performance of safety valve experimental rig for another technical solution of the invention.There is provided a kind of liquid safe valve set-pressures and action performance test method based on above-mentioned gas liquid two purpose performance of safety valve experimental rig for another technical solution of the invention.The present invention is organically combined togather liquid and air-safety valve events performance test stand position, and safety valve test system tailor corresponding operation process flow thus.The defect that gas and liquid safe valve test bench location are separately designed and built before this sets of plan effectively overcomes, is greatly saved construction land, equipment investment, factory's distribution and maintenance cost etc..
Description
Technical field
The present invention relates to the experimental rigs of the performance of safety valve of a set of gas liquid two purpose.
Background technique
Safety valve is last one of the overpressure protection apparatus of pressure bearing system, is boiler, pressure vessel, main on bearing pipe
Safety attachment.Therefore the quality in order to guarantee safety valve, all safety valves all must the property done in research and development and batch production process
It can test, to guarantee that it meets standard requirements.
Present safety valve, come point, can be divided into liquid safe valve and gas safety valve according to Applicable media.And liquid is pacified
The action performance of full valve needs liquid safe valve test bench location to go to test, and gas safety valve needs gas safety valve test bench location to go
Test.This is the common situation of current all safety valve testing platforms position.And if a safety valve manufacturer produces two simultaneously
When the safety valve of seed type, liquid safe valve test bench location and gas safety valve testing table position also must be just established respectively, in this way
Both it had occupied excessive land area and has also increased the cost of equipment construction.
The liquid safety valve test platform and gaseous state safety valve test platform of present each safety valve producer are separately to build
If or even some producers also specially establish the dedicated performance of safety valve test bench location of steam.But these test bench locations
Have a single function.That is the test(ing) medium of air test platform position can only be compressed air；Liquid safe valve test bench location
Test(ing) medium can only be water.Two systems are incompatible.It will result in many unnecessary wastes: 1, two sets of test bench locations in this way
Place needed for needing to hew out two test bench locations respectively, can not interfere, and cause the waste for taking up an area and building aspect；
2, two sets of test bench locations are built, the equipment such as some pressure vessels that originally can be general or compressor must also buy two sets,
The waste of equipment is caused in this way；3, two test bench locations are also required to be safeguarded respectively during one's term of military service, also result in dimension in this way
Protect the waste of cost；4, two sets of equipments power consumption and water consumption simultaneously will be even considered in Factory Electricity Supply and water supply process, made
The waste for increasing at the capacity of power supply water system and generating.
Summary of the invention
The technical problem to be solved in the present invention: liquid safety valve test and gaseous state safety are completed using a test platform
Valve test.
In order to solve the above-mentioned technical problem, there is provided a kind of safe valve actuation of gas liquid two purpose for a technical solution of the invention
Make performance test apparatus, which is characterized in that including compressor, pressure vessel one, pressure vessel two, pressure vessel three and pipeline system
System and control system, compressor are communicated via valve one with pressure vessel two, and the gas outlet of pressure vessel two is successively via switch
Valve one, heavy caliber regulating valve one in parallel are communicated with small-bore regulating valve one, switch valve two with the air inlet of pressure vessel one, are pressed
Blow valve one is connected on the drain of force container one, tested gas safety valve is connected via gate valve one with pressure vessel one,
By-passing valve one is connected on the same interface that gate valve one is connected with pressure vessel one；
Fluid to be measured safety valve connects pressure vessel three via gate valve two, is connected in gate valve two with pressure vessel three same
By-passing valve two is connected on interface, the drain of pressure vessel three is connected with blow valve two；The water filling port of pressure vessel two via
Hand stop valve one is communicated with external water source, and the level measuring mouth of pressure vessel two connects liquidometer via hand stop valve two；
Pressure vessel three is communicated via switch valve three with pressure vessel two, the gas outlet of pressure vessel one successively via switch valve four, simultaneously
The heavy caliber regulating valve two of connection is connected with small-bore regulating valve two, switch valve five with the air inlet of pressure vessel two；
Pressure vessel one is test chamber during gas test, and pressure vessel two is used as accumulator, at switch valve three
In closed state, i.e. pressure vessel three is in idle state.But during the test of liquid safe valve, pressure vessel one is storage
Energy device, pressure vessel container two are water storage pressure vessel, and pressure vessel three is test chamber.In order to guarantee whole system safety
Valve is reliably run, and the design pressure of pressure vessel one, two, three is identical.
Switch valve one, heavy caliber regulating valve one, small-bore regulating valve one, switch valve two, blow valve one, gate valve one, bypass
Valve one, switch valve three, gate valve two, by-passing valve two, blow valve two, switch valve four, the small-bore regulating valve two of heavy caliber regulating valve two,
Switch valve five is by control system；
Control system acquires tested gas safety valve, fluid to be measured safety valve, pressure vessel one, pressure vessel two, pressure
The related data of container three.The measurement of all data and acquisition precision and control precision will meet the requirement of GB and ASME.
Preferably, check-valves one is connected between the shut-off valve one and the pressure vessel two；In the valve one
Check-valves two is connected between the pressure vessel two.
Preferably, safety valve is respectively equipped on the pressure vessel one, the pressure vessel two, the pressure vessel three
One, safety valve two and safety valve three.
Preferably, valve two is equipped on the interface that the pressure vessel three is connected with the switch valve three；In the pressure
The interface that force container two is connected with the switch valve three is equipped with valve three；Valve four is connected on the pressure vessel three.
Preferably, the compressor is successively connected via valve five and check-valves three with the pressure vessel one.
There is provided a kind of based on above-mentioned gas liquid two purpose performance of safety valve examination for another technical solution of the invention
The gas safety valve set-pressure and action performance test method of experiment device, which comprises the following steps:
Step 1, opening control, open valve one, switch valve one, heavy caliber regulating valve one, small-bore regulating valve one,
Switch valve two, other all valves are transferred to closed state；
Step 2, starting compressor, slowly pressurize to pressure vessel two and pressure vessel one, when pressure vessel two and
When the pressure of pressure vessel one reaches 110% tested safety valve set pressure, it is more enough to guarantee that regulation experiment has in the process
Gas source stops boosting to pressure vessel one；
Step 3, the initial value for opening high test device for demarcating tested gas safety valve；
Step 4 slightly opens by-passing valve one, inflation in the pipeline between gate valve one and tested safety valve, until tested
Whether qualified safety valve jumping up analyzes tested safety valve according to the collected data of control system, if adjusting pressure does not meet rule
It is fixed, then spring pressure is adjusted, until the compound regulation of continuous set-pressure；It should make a record during the adjustment；
If the pressure of pressure vessel one is more than the set-pressure of tested safety valve 115%, control system is by automatic safe
The chain switch valve one closed on one admission line of pressure vessel, switch valve two, and blow valve one is opened, one pressure of pressure vessel
When being down to tested 80% set-pressure of safety valve, blow valve one is closed in hand-reset；
Step 5, tested safety valve will also be repeated a further three times step 4 after meeting regulation, and carry out test data sheet, weigh three times
If the fluctuation range that gained is tested safety valve set pressure is tested in retrial to be had beyond standard regulation, continue to repeat step 4, otherwise,
Set-pressure test is completed；
After the completion of step 6, set-pressure test, switch valve one, the heavy caliber tune on one inlet pipeline of pressure vessel are closed
Save valve one, small-bore regulating valve one, switch valve two；
Step 7 opens blow valve one, when one pressure of pressure vessel is down to tested 80% set-pressure of safety valve, manually
It resets and closes blow valve one, open by-passing valve one, after pressure balance, then fully open gate valve one, to test tested safety valve
Action performance is prepared；
Step 8, compressor continue to pressurize into pressure vessel two, after pressure reaches preset value, open pressure vessel one
Switch valve one, the switch valve two of entrance, the small-bore regulating valve one of slow one entrance of cracking pressure container, continue to pressure
Container one boosts to the 90% of tested safety valve set pressure；
Step 9 demarcates the pressure test device that tested safety valve opens high test device and pressure vessel one again；
Heavy caliber regulating valve one in step 10, one inlet pipeline of cracking pressure container, control pressure vessel one are 103%
Tested safety valve set-pressure, while pressure all in whole process and safety valve are opened high data and are acquired；
If there is accident, one pressure of pressure vessel is more than tested 115% set-pressure of safety valve, and control system will be automatic
Safety interlocking closes switch valve one, switch valve two on one admission line of pressure vessel, and opens blow valve one, pressure vessel one
When pressure is down to tested 80% set-pressure of safety valve, blow valve one is closed in hand-reset；
Step 11 opens height to specified when tested safety valve jumping up, maintains stable emissions 3-5s, completes safety valve jumping up and steady
Determine emission testing, close small-bore regulating valve one, while slowly closing heavy caliber regulating valve one, while recording tested safety valve
Seat performance is returned, after returning seat completely, completely closes the switch valve one, switch valve two and heavy caliber regulating valve of one import of pressure vessel
One, blow valve one is opened later, and one pressure of pressure vessel is made to drop to the set-pressure of 80% tested safety valve；
Step 12, processing analysis test result judge whether to continue to repeat according to tested safety valve is each and test data
It tests or is tested again after carrying out field adjustable to tested safety valve until pass the test or scene decision termination test；
Step 13, according to step 8 to step 12, complete long run test twice, deviation point carried out according to test data
Analysis is analyzed if successfully completing test, otherwise termination test in the margin of tolerance for the test data precision as defined in standard surveyed
It is separately tested after reason and adjustment.
There is provided a kind of based on above-mentioned gas liquid two purpose performance of safety valve examination for another technical solution of the invention
The liquid safe valve set-pressure and action performance test method of experiment device, which comprises the steps of:
Step 1, opening control turn on the switch valve three, other all valves are transferred to closed state；
Step 2 opens shut-off valve one and shut-off valve two manually, and safety valve liquid pilot institute is filled with water into pressure vessel two
The water level needed；
Step 3 turns on the switch valve four, heavy caliber regulating valve two, small-bore regulating valve two, switch valve five, guarantees to pressure
Force container one, pressure vessel two, the pressurization of pressure vessel San Tong method；
Step 4, starting compressor, slowly pressurize to pressure vessel one, pressure vessel two, pressure vessel three, work as pressure
When the pressure of container one and pressure vessel three reaches 110% fluid to be measured safety valve set pressure, guarantee regulation experiment process
In have more enough gas sources, stop boosting to pressure vessel three；
Step 5, the initial value for opening high test device for demarcating fluid to be measured safety valve；
Step 6 slightly opens by-passing valve two, water-filling in the pipeline toward gate valve two and fluid to be measured safety valve between, up to
Fluid to be measured safety valve jumping up, it is whether qualified according to the collected data analysis fluid to be measured safety valve of control system, if whole
Level pressure is against regulation, then adjusts spring pressure, until the compound regulation of continuous set-pressure；It should do during the adjustment easy to remember
Record；
If three pressure of pressure vessel is more than 115% set-pressure of fluid to be measured safety valve, control system is by automatic safe
The chain switch valve four closed on two admission line of pressure vessel, switch valve five simultaneously open blow valve two, three pressure of pressure vessel
When being down to fluid to be measured 80% set-pressure of safety valve, blow valve two is closed in hand-reset；
Step 7, fluid to be measured safety valve will also be repeated a further three times step 6 after meeting regulation, and carry out test data sheet, and three
It is provided if the secondary fluctuation range for repeating test gained safety valve set pressure has beyond standard, continues to repeat step 6, otherwise,
Set-pressure test is completed；
Step 8, set-pressure test after the completion of, close two inlet pipeline of pressure vessel on switch valve four, switch valve five,
Heavy caliber regulating valve two, small-bore regulating valve two；
Step 9 opens blow valve two, and the pressure in pressure vessel three and pressure vessel two is down to fluid to be measured safety valve
When 80% set-pressure, quick release valve two is closed in hand-reset, is opened by-passing valve two, after pressure balance, then is fully opened
Gate valve two is prepared for test performance of safety valve；
Step 10, compressor continue to pressurize into pressure vessel one, after pressure reaches preset value.Open pressure vessel two
Switch valve four, the switch valve five of entrance slowly open the small-bore regulating valve two of test chamber entrance, continue to hold pressure
Device three and pressure vessel two boost to the 90% of fluid to be measured safety valve set pressure；
Step 11, the pressure test dress for opening high test device and pressure vessel three for demarcating fluid to be measured safety valve again
It sets；
Heavy caliber regulating valve two in step 12, cracking pressure container triple feed inlet pipeline, control three pressure of pressure vessel are
The set-pressure of 103% fluid to be measured safety valve, while pressure all in whole process and safety valve are opened high data and are carried out
Acquisition；
If three pressure of pressure vessel is more than 115% set-pressure of fluid to be measured safety valve, control system is by automatic safe
The chain switch valve four closed on two admission line of pressure vessel, switch valve five, and blow valve two is opened, three pressure of pressure vessel
When being down to fluid to be measured 80% set-pressure of safety valve, blow valve two is closed in hand-reset；
Step 13 opens height to specified when fluid to be measured safety valve jumping up, maintains stable emissions 3-5s, completes safety valve jumping up
And stable emissions test, the small-bore regulating valve two in two air inlet pipe of pressure vessel is closed, while slowly closing heavy caliber and adjusting
Valve two, while time seat performance of record security valve, after returning seat completely, switch valve four, the switch valve of complete two import of pressure vessel
Five and heavy caliber regulating valve two, blow valve two is opened later, and three pressure of pressure vessel is made to drop to 80% fluid to be measured safety valve
Set-pressure；
Step 14, processing analysis test result judge whether to continue to repeat according to safety valve product is each and test data
It tests or is tested again after carrying out field adjustable to safety valve until pass the test or scene decision termination test；
Step 15, according to step 10 to step 14, complete long run test twice, deviation point carried out according to test data
Analysis is analyzed if successfully completing test, otherwise termination test in the margin of tolerance for the test data precision as defined in standard surveyed
It is separately tested after reason and adjustment.
The present invention is organically combined togather liquid and air-safety valve events performance test stand position, and safety thus
Valve pilot system tailor corresponding operation process flow.Gas and liquid safe valve before this sets of plan effectively overcomes
Construction land, equipment investment, factory's distribution and maintenance cost is greatly saved in the defect that test bench location is separately designed and built
Deng.
Detailed description of the invention
Fig. 1 is the principle of the present invention figure, and in figure, circle horizontal line indicates data acquisition line, and transverse line indicates control line, and signal is all
It is issued by the computer in figure or is acquired.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
In conjunction with Fig. 1, a kind of gas liquid two purpose performance of safety valve experimental rig provided by the invention includes compressor 1, pressure
Force container 1, pressure vessel 23, pressure vessel 34 and control system 28, pressure vessel 1, pressure vessel 23, pressure are held
Safety valve 1, safety valve 2 13 and safety valve 3 31 are respectively equipped on device 34.Valve four is connected on pressure vessel 34
36
Compressor 1 is communicated via valve 1, check-valves 28 with pressure vessel 23, and the gas outlet of pressure vessel 23 is successively
Via switch valve 1, heavy caliber regulating valve 1 in parallel and small-bore regulating valve 1, switch valve 2 23 and pressure vessel
One 2 air inlet communicates, and blow valve 1 is connected on the drain of pressure vessel 1, is tested safety valve 25 via gate valve one
26 are connected with pressure vessel 1, are connected with by-passing valve 1 on the same interface that gate valve 1 is connected with pressure vessel 1；
Fluid to be measured safety valve 34 connects pressure vessel 34 via gate valve 2 33, in gate valve 2 33 and 34 phase of pressure vessel
It is connected with by-passing valve 2 32 on same interface even, the drain of pressure vessel 34 is connected with blow valve 2 35；Pressure vessel two
3 water filling port is communicated via check-valves 1, shut-off valve 1 with fire hydrant 16, the level measuring mouth of pressure vessel 23 via
Shut-off valve 2 18 connects liquidometer 17；Pressure vessel 34 is communicated via switch valve 3 29 with pressure vessel 23, in pressure vessel
34 interfaces being connected with switch valve 3 29 are equipped with valve 2 30, on the interface that pressure vessel 23 is connected with switch valve 3 29
Equipped with valve 3 19；The gas outlet of pressure vessel 1 successively via switch valve 49, heavy caliber regulating valve 2 10 in parallel with it is small
Bore regulating valve 2 11, switch valve 5 12 are connected with the air inlet of pressure vessel 23；
Compressor 1 is also successively connected via valve 55 and check-valves 37 with pressure vessel 1；
Switch valve 1, heavy caliber regulating valve 1, small-bore regulating valve 1, switch valve 2 23, blow valve 1, lock
Valve 1, by-passing valve 1, switch valve 3 29, gate valve 2 33, by-passing valve 2 32, blow valve 2 35, switch valve 49, heavy caliber
The small-bore regulating valve 2 11 of regulating valve 2 10, switch valve 5 12 are by control system 28；
Control system 28 acquires tested safety valve 25, fluid to be measured safety valve 34, by-passing valve 1, by-passing valve 2 32, pressure
The data of force container 1, pressure vessel 23, pressure vessel 34.
During gas test, pressure vessel 1 is test chamber, and pressure vessel 23 is used as accumulator, switch valve three
29 are in close state, i.e., pressure vessel 34 is in idle state.But during the test of liquid safe valve, pressure vessel
One 2 be accumulator, and pressure vessel 23 is water storage bulk container, and pressure vessel 34 is test chamber.In order to guarantee whole system
Safety valve is reliably run, and pressure vessel 1, pressure vessel 23, the design pressure of pressure vessel 34 are identical.
A kind of gas safety valve set-pressure provided by the invention and action performance test method, comprising the following steps:
Step 1, opening control 28 open valve 1, switch valve 1, heavy caliber regulating valve 1, small-bore tune
Valve 1, switch valve 2 23 are saved, other all valves are transferred to closed state；
Step 2, starting compressor 1, slowly pressurize to pressure vessel 23 and pressure vessel 1, when pressure vessel 23
And the pressure of pressure vessel 1 is when reaching 110% tested safety valve set pressure, guarantees to have during regulation experiment more sufficient
Enough gas sources stop boosting to pressure vessel 1；
Step 3, the initial value for opening high test device for demarcating tested safety valve 25；
Step 4 slightly opens by-passing valve 1, inflation in the pipeline between gate valve 1 and tested safety valve 25, directly
It is whether qualified according to the tested safety valve 25 of the collected data of control system 28 analysis to tested 25 take-off of safety valve, if whole
Level pressure is against regulation, then adjusts spring pressure, until the compound regulation of continuous set-pressure；It should do during the adjustment easy to remember
Record；
If the pressure of pressure vessel 1 is more than the set-pressure of tested safety valve 25115%, control system 28 will be automatic
Safety interlocking closes switch valve 1, switch valve 2 23 on one 2 admission line of pressure vessel, and opens blow valve 1, presses
When one 2 pressure of force container is down to tested 2580% set-pressure of safety valve, blow valve 1 is closed in hand-reset；
Step 5, tested safety valve 25 will also be repeated a further three times step 4 after meeting regulation, and carry out test data sheet, three times
If repeating the fluctuation range that test gained is tested 25 set-pressure of safety valve has beyond standard regulation, continue to repeat step 4, it is no
Then, set-pressure test is completed；
After the completion of step 6, set-pressure test, switch valve 1, the heavy caliber on one 2 inlet pipeline of pressure vessel are closed
Regulating valve 1, small-bore regulating valve 1, switch valve 2 23；
Step 7 opens blow valve 1, when one 2 pressure of pressure vessel is down to tested 2580% set-pressure of safety valve,
Blow valve 1 is closed in hand-reset, is opened by-passing valve 1, after pressure balance, then is fully opened gate valve 1, for test
Tested 25 action performance of safety valve is prepared；
Step 8, compressor 1 continue to pressurize into pressure vessel 23, after pressure reaches preset value, open pressure vessel
Switch valve 1, the switch valve 2 23 of one 2 entrances, the small-bore regulating valve 1 of slow one 2 entrance of cracking pressure container,
Continue to boost to pressure vessel 1 the 90% of tested 25 set-pressure of safety valve；
Step 9 demarcates the pressure test device that tested safety valve 25 opens high test device and pressure vessel 1 again；
Heavy caliber regulating valve 1 in step 10, one 2 inlet pipeline of cracking pressure container, control pressure vessel 1 are
The set-pressure of 103% tested safety valve 25, while pressure all in whole process and safety valve are opened high data and are adopted
Collection；
If there is accident, one 2 pressure of pressure vessel is more than tested 25115% set-pressure of safety valve, control system 28
By the chain switch valve 1 closed on one 2 admission line of pressure vessel of automatic safe, switch valve 2 23, and open blow valve one
37, when one 2 pressure of pressure vessel is down to tested 2580% set-pressure of safety valve, blow valve 1 is closed in hand-reset；
Step 11, when tested safety valve 25 rise jump to it is specified open height, maintain stable emissions 3-5s, complete safety valve jumping up and
Stable emissions test, closes small-bore regulating valve 1, while slowly closing heavy caliber regulating valve 1, while recording tested peace
Full valve 25 returns seat performance, after returning seat completely, completely closes switch valve 1,2 23 and of switch valve of one 2 import of pressure vessel
Heavy caliber regulating valve 1 opens blow valve 1 later, one 2 pressure of pressure vessel is made to drop to 80% tested safety valve 25
Set-pressure；
Step 12, processing analysis test result judge whether to continue weight according to tested safety valve 25 is each and test data
Retrial is tested or is tested again after carrying out field adjustable to tested safety valve 25 until pass the test or scene determine termination test；
Step 13, according to step 8 to step 12, complete long run test twice, deviation point carried out according to test data
Analysis is analyzed if successfully completing test, otherwise termination test in the margin of tolerance for the test data precision as defined in standard surveyed
It is separately tested after reason and adjustment.
A kind of liquid safe valve set-pressure provided by the invention and action performance test method, include the following steps:
Step 1, opening control 28, turn on the switch valve 3 29, other all valves are transferred to closed state；
Step 2 opens shut-off valve 1 and shut-off valve 2 18 manually, and safety valve liquid is filled with water into pressure vessel 23
Water level required for testing；
Step 3 turns on the switch valve 49, heavy caliber regulating valve 2 10, small-bore regulating valve 2 11, switch valve 5 12, guarantees
It can be pressurized simultaneously to pressure vessel 1, pressure vessel 23, pressure vessel 34；
Step 4, starting compressor 1, slowly pressurize to pressure vessel 1, pressure vessel 23, pressure vessel 34, when
When the pressure of pressure vessel 1 and pressure vessel 34 reaches 110% fluid to be measured 34 set-pressure of safety valve, guarantee adjusting
There are more enough gas sources during test, stops boosting to pressure vessel 34；
Step 5, the initial value for opening high test device for demarcating fluid to be measured safety valve 34；
Step 6 slightly opens by-passing valve 2 32, fills in the pipeline between gate valve 2 33 and fluid to be measured safety valve 34
Gas, until 34 take-off of fluid to be measured safety valve, analyzing fluid to be measured safety valve 34 according to the collected data of control system 28 is
No qualification adjusts spring pressure, until the compound regulation of continuous set-pressure if adjusting pressure is against regulation；It was adjusting
Cheng Zhongying makes a record；
If 34 pressure of pressure vessel is more than 34115% set-pressure of fluid to be measured safety valve, control system 28 will be automatic
Switch valve 49 that safety interlocking is closed on 23 admission line of pressure vessel and opens blow valve 2 35, pressure at switch valve 5 12
When 34 pressure of container is down to fluid to be measured 3480% set-pressure of safety valve, blow valve 2 35 is closed in hand-reset；
Step 7, fluid to be measured safety valve 34 will also be repeated a further three times step 6 after meeting regulation, and carry out test data sheet,
It is provided if the fluctuation range for repeating test gained safety valve set pressure three times has beyond standard, continues to repeat step 6, it is no
Then, set-pressure test is completed；
After the completion of step 8, set-pressure test, switch valve 49, the switch valve on 23 inlet pipeline of pressure vessel are closed
5 12, heavy caliber regulating valve 2 10, small-bore regulating valve 2 11；
Step 9 opens blow valve 2 35, and the pressure in pressure vessel 34 and pressure vessel 23 is down to fluid to be measured peace
When 3480% set-pressure of full valve, quick release valve 2 35 is closed in hand-reset, opens by-passing valve 2 32, after pressure balance,
Gate valve 2 33 is fully opened again, is prepared for test performance of safety valve；
Step 10, compressor 1 continue to pressurize into pressure vessel 1, after pressure reaches preset value.Open pressure vessel
Switch valve 49, the switch valve 5 12 of 23 entrances slowly open the small-bore regulating valve 2 11 of test chamber entrance, continue
The 90% of 34 set-pressure of fluid to be measured safety valve is boosted to pressure vessel 34 and pressure vessel 23；
The pressure test device for opening high test device and pressure vessel 34 of step 11, again fluid to be measured safety valve 34；
Heavy caliber regulating valve 2 10 in step 12,34 inlet pipeline of cracking pressure container, control pressure vessel 34 are pressed
The set-pressure for the fluid to be measured safety valve 34 that power is 103%, while pressure all in whole process and safety valve are opened high number
According to being acquired；
If 34 pressure of pressure vessel is more than 34115% set-pressure of fluid to be measured safety valve, control system 28 will be automatic
Safety interlocking closes switch valve 49, switch valve 5 12 on 23 admission line of pressure vessel, and opens blow valve 2 35, pressure
When 34 pressure of container is down to fluid to be measured 3480% set-pressure of safety valve, blow valve 2 35 is closed in hand-reset；
Step 13, when fluid to be measured safety valve 34 rise jump to it is specified open height, maintain stable emissions 3-5s, complete safety valve and rise
It jumps and stable emissions is tested, close the small-bore regulating valve 2 11 in 23 air inlet pipe of pressure vessel, while slowly closing heavy caliber
Regulating valve 2 10, while time seat performance of record security valve, after returning seat completely, the switch valve four of complete 23 import of pressure vessel
9, switch valve 5 12 and heavy caliber regulating valve 2 10 open blow valve 2 35 later, 34 pressure of pressure vessel are made to drop to 80%
The set-pressure of fluid to be measured safety valve 34；
Step 14, processing analysis test result judge whether to continue to repeat according to safety valve product is each and test data
It tests or is tested again after carrying out field adjustable to safety valve until pass the test or scene decision termination test；
Step 15, according to step 10 to step 14, complete long run test twice, deviation point carried out according to test data
Analysis is analyzed if successfully completing test, otherwise termination test in the margin of tolerance for the test data precision as defined in standard surveyed
It is separately tested after reason and adjustment.
Claims (1)
1. a kind of liquid safe valve set-pressure and action performance examination based on gas liquid two purpose performance of safety valve experimental rig
Proved recipe method, the gas liquid two purpose performance of safety valve experimental rig include compressor (1), pressure vessel one (2), pressure vessel
Two (3), pressure vessel three (4) and control system (28), compressor (1) are communicated via valve one (6) with pressure vessel two (3),
The gas outlet of pressure vessel two (3) is successively via switch valve one (20), heavy caliber regulating valve one (21) in parallel and small-bore tune
Section valve one (22), switch valve two (23) are communicated with the air inlet of pressure vessel one (2), are connected on the drain of pressure vessel one (2)
It is connected to blow valve one (37), tested safety valve (25) are connected via gate valve one (26) with pressure vessel one (2), in gate valve one (26)
By-passing valve one (27) is connected on the same interface being connected with pressure vessel one (2)；
Fluid to be measured safety valve (34) connects pressure vessel three (4) via gate valve two (33), in gate valve two (33) and pressure vessel
It is connected with by-passing valve two (32) on the connected same interface in three (4), the drain of pressure vessel three (4) is connected with blow valve two
(35)；The water filling port of pressure vessel two (3) is communicated via shut-off valve one (15) with external water source, the water level of pressure vessel two (3)
Measuring mouth connects liquidometer (17) via shut-off valve two (18)；Pressure vessel three (4) is via switch valve three (29) and pressure vessel
Two (3) communicate, the gas outlet of pressure vessel one (2) successively via switch valve four (9), heavy caliber regulating valve two (10) in parallel with
Small-bore regulating valve two (11), switch valve five (12) are connected with the air inlet of pressure vessel two (3)；
Switch valve one (20), heavy caliber regulating valve one (21), small-bore regulating valve one (22), switch valve two (23), blow valve one
(37), gate valve one (26), by-passing valve one (27), switch valve three (29), gate valve two (33), by-passing valve two (32), blow valve two
(35), the small-bore regulating valve two (11) of switch valve four (9), heavy caliber regulating valve two (10), switch valve five (12) are by control
It unites (28)；
Control system (28) acquires tested safety valve (25), fluid to be measured safety valve (34), pressure vessel one (2), pressure vessel
Two (3), pressure vessel three (4) data, which is characterized in that described method includes following steps:
Step 1, opening control (28), turn on the switch valve three (29), other all valves are transferred to closed state；
Step 2 opens shut-off valve one (15) and shut-off valve two (18) manually, and safety valve liquid is filled with water into pressure vessel two (3)
Water level required for body is tested；
Step 3 turns on the switch valve four (9), heavy caliber regulating valve two (10), small-bore regulating valve two (11), switch valve five (12),
Guarantee to pressure vessel one (2), pressure vessel two (3), pressure vessel three (4) while being pressurized；
Step 4, starting compressor (1) slowly add to pressure vessel one (2), pressure vessel two (3), pressure vessel three (4)
Pressure, when the pressure of pressure vessel one (2) and pressure vessel three (4) reaches 110% fluid to be measured safety valve (34) set-pressure
When, guarantee there are more enough gas sources during regulation experiment, stops boosting to pressure vessel three (4)；
Step 5, the initial value for opening high test device for demarcating fluid to be measured safety valve (34)；
Step 6 slightly opens by-passing valve two (32), fills in the pipeline between gate valve two (33) and fluid to be measured safety valve (34)
Gas, until fluid to be measured safety valve (34) take-off, analyzes fluid to be measured safety valve according to the collected data of control system (28)
(34) whether qualified, if adjusting pressure is against regulation, spring pressure is adjusted, until the compound regulation of continuous set-pressure；
If pressure vessel three (4) pressure is more than (34) 115% set-pressure of fluid to be measured safety valve, control system (28) will be certainly
It moves the switch valve four (9) on safety interlocking closing pressure vessel two (3) admission line, switch valve five (12) and opens blow valve two
(35), when pressure vessel three (4) pressure is down to fluid to be measured (34) 80% set-pressure of safety valve, blow valve is closed in hand-reset
Two (35)；
Step 7, fluid to be measured safety valve (34) will also be repeated a further three times step 6 after meeting regulation, and carry out test data sheet, and three
It is provided if the secondary fluctuation range for repeating test gained safety valve set pressure has beyond standard, continues to repeat step 6, otherwise,
Set-pressure test is completed；
After the completion of step 8, set-pressure test, switch valve four (9), the switch valve on pressure vessel two (3) inlet pipeline are closed
Five (12), heavy caliber regulating valve two (10), small-bore regulating valve two (11)；
Step 9 opens blow valve two (35), and the pressure in pressure vessel three (4) and pressure vessel two (3) is down to fluid to be measured
When (34) 80% set-pressure of safety valve, quick release valve two (35) are closed in hand-reset, are opened by-passing valve two (32), and pressure is flat
After weighing apparatus, then gate valve two (33) is fully opened, prepared for test performance of safety valve；
Step 10, compressor (1) continue the pressurization into pressure vessel one (2), after pressure reaches preset value, open pressure vessel
The switch valve four (9), switch valve five (12) of two (3) entrances slowly open the small-bore regulating valve two of test chamber entrance
(11), continue to boost to pressure vessel three (4) and pressure vessel two (3) the 90% of fluid to be measured safety valve (34) set-pressure；
The pressure test device for opening high test device and pressure vessel three (4) of step 11, again fluid to be measured safety valve (34)；
Heavy caliber regulating valve two (10) in step 12, cracking pressure container three (4) inlet pipeline controls pressure vessel three (4)
The set-pressure for the fluid to be measured safety valve (34) that pressure is 103%, while pressure all in whole process and safety valve are opened height
Data are acquired；
If pressure vessel three (4) pressure is more than (34) 115% set-pressure of fluid to be measured safety valve, control system (28) will be certainly
Dynamic safety interlocking closes switch valve four (9), switch valve five (12) on pressure vessel two (3) admission line, and opens blow valve
Two (35), when pressure vessel three (4) pressure is down to fluid to be measured (34) 80% set-pressure of safety valve, emptying is closed in hand-reset
Valve two (35)；
Step 13, when fluid to be measured safety valve (34) rise jump to it is specified open height, maintain stable emissions 3-5s, complete safety valve jumping up
And stable emissions test, the small-bore regulating valve two (11) in pressure vessel two (3) air inlet pipe is closed, while slowly closing big mouth
Diameter regulating valve two (10), while time seat performance of record security valve, after returning seat completely, complete pressure vessel two (3) import is opened
Valve four (9), switch valve five (12) and heavy caliber regulating valve two (10) are closed, blow valve two (35) is opened later, makes pressure vessel three
(4) pressure drops to the set-pressure of 80% fluid to be measured safety valve (34)；
Step 14, processing analysis test result judge whether to continue to repeat to test according to safety valve product is each and test data
Or it is tested again after carrying out field adjustable to safety valve until pass the test or scene determine termination test；
Step 15, according to step 10 to step 14, complete long run test twice, variance analysis carried out according to test data,
If successfully completing test, otherwise termination test in the margin of tolerance for the test data precision as defined in standard surveyed, reason is analyzed
And it is separately tested after adjustment.
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