CN108457933A - A kind of shale gas Well site safety control system adaptive testing device and method - Google Patents
A kind of shale gas Well site safety control system adaptive testing device and method Download PDFInfo
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- CN108457933A CN108457933A CN201810350966.6A CN201810350966A CN108457933A CN 108457933 A CN108457933 A CN 108457933A CN 201810350966 A CN201810350966 A CN 201810350966A CN 108457933 A CN108457933 A CN 108457933A
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 37
- 230000035945 sensitivity Effects 0.000 claims abstract description 6
- 239000002828 fuel tank Substances 0.000 claims description 31
- 239000003921 oil Substances 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000000446 fuel Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 abstract description 4
- 230000035484 reaction time Effects 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of shale gas Well site safety control system adaptive testing device and methods, high-low pressure pressure output device is designed, by hydraulic pump first class boost, using accumulator ballast, then the boosting of servo valve two level can generate hyperpressure output, complete the test of block valve high-low pressure off value；Slope pressure drop output device is determined in design, and well site leakage approximation, which is thought of as shale gas, slowly to be reduced in pipeline with certain slope pressure, and hydraulic pump is adjusted by Serve Motor Control, along with hydraulic cylinder and accumulator completion determine slope pressure drop output；Stem movement time detecting system is established, pressure signal and valve cut-off signals are received, determines valve turn-off time, the sensitivity of evaluation safety control system, reaction time；Build temperature control system, analysis of hydraulic oil overheat or it is too low when system open, exchange heat to hydraulic oil, to prevent from damaging test device.
Description
Technical field
The present invention relates to a kind of shale gas Well site safety control system adaptive testing device and methods, belong to the natural gas well
Ground safety control technology field.
Background technology
Shale gas surface gathering and transferring technique is still faced with many problems, including：(1) in shale gas development process,
Initial stage of production well head pressure is very high, decays quickly therewith, and well head pressure operating mode changes greatly, and superpressure or decompression operating mode have downstream
Huge risk；(2) shale gas of well head exploitation enters well site, fails once a leak occurs, Well site safety control system is unidentified
Turn off urgent block valve in time, progress can the accidents such as fire hazard, explosion, poisoning.
In terms of shale gas Well site safety control system adaptive testing, foreign study person does not propose correlation on open source literature
Shale gas Well site safety control system adaptive testing device design scheme or test method, the country also have no corresponding report.
Therefore, to ensure the process equipment safe operation of personal life security and wellhead assembly downstream capture gas yard, if
A kind of shale gas Well site safety control system adaptive testing device has been counted, adaptive testing, packet are carried out to Well site safety system
The adaptive testing of well head safe block valve and well site quick action emergency valve adaptive testing are included, so that accident and out of control occurs in well head
In the case of and well site quickly block when leaking and carry out gas, to ensure the safety of the person, production and equipment, reduce and avoid
Economic loss.
Invention content
It is right the purpose of the present invention is to provide a kind of shale gas Well site safety control system adaptive testing device and method
The safety control system in shale gas well site is tested, is analyzed, and the adaptability of safety control system is evaluated, it is ensured that shale gas well site
Safe efficient production.
The present invention solves the problems, such as following：1. shale gas Well site safety control system adaptive testing device is designed,
Well site safety control system dependence test is completed, Well site safety control system adaptability is evaluated；2. designing high-low pressure pressure output
Device, by hydraulic pump first class boost, using accumulator ballast, it is defeated can to generate hyperpressure for then servo valve two level boosting
Go out, completes the test of block valve high-low pressure off value；3. slope pressure drop output device is determined in design, well site leakage approximation is thought of as page
Rock gas is slowly reduced in pipeline with certain slope pressure, by Serve Motor Control adjust hydraulic pump, along with hydraulic cylinder with
And slope pressure drop output is determined in accumulator completion；4. establishing stem movement time detecting system, pressure signal and valve are received
Cut-off signals determine valve turn-off time, the sensitivity of evaluation safety control system, reaction time；5. building temperature control system, hydraulic pressure
System is opened when oil temperature is too high or too low, is exchanged heat to hydraulic oil, to prevent from damaging test device.
To achieve the goals above, technical scheme is as follows：
A kind of shale gas Well site safety control system adaptive testing device, including fuel tank 1, the first accurate filter 2,
Two accurate filters 3, third accurate filter 4, the 4th accurate filter 5, super-pressure and low pressure output module 6, overflow valve 7,
Throttle valve 8, the first relief valve 9, the second relief valve 10, liquid level gauge 11, thermometer 12, temperature control system 13, air filter 14, tiltedly
Rate pressure output module 15, hydraulic cylinder 16, accumulator 17, pressure sensor 18, stem movement time detecting system 19, block valve
Interface 20, fuel outlet valve 21；
Fuel tank 1 is sequentially connected with the first accurate filter 2, super-pressure and low pressure output module 6 and overflow valve 7, superelevation
Pressure and low pressure output module 6 are sequentially connected with throttle valve 8, fuel tank 1, super-pressure and low pressure output module 6, the first relief valve 9, the
Two accurate filters 3, fuel tank 1 are sequentially connected, liquid level gauge 11, thermometer 12, temperature control system 13, air filter 14, fuel outlet valve
21 are connected with fuel tank 1 respectively, and super-pressure and low pressure output module 6 are sequentially connected with pressure sensor 18, block valve interface 20, pressure
Force snesor 18 is connected with stem movement time detecting system 19, fuel tank 1, the 4th accurate filter 5, slope pressure output module
15, the second relief valve 10, third accurate filter 4 are sequentially connected, slope pressure output module 15, hydraulic cylinder 16, accumulator 17,
Pressure sensor 18, block valve interface 20 are linked in sequence.
A kind of shale gas Well site safety control system adaptive testing method, specific steps include：
A1,1 a certain amount of hydraulic oil is injected toward fuel tank, liquid level in fuel tank 1 is monitored by liquid level gauge 11, when liquid level carry
Open 21 draining of fuel outlet valve, thermometer 12 monitor oil temperature, high oil temperature or it is too low when open temperature control system 13, adjusted by temperature
Method makes oil temperature restore normal, and device is started to work；
A2, hydraulic oil enter super-pressure and low pressure output module 6 by fuel tank 1, accurate filter 2, pass through hyperpressure
Value, low voltage value pressure output method, block valve interface 20 is delivered to by pressure signal, detects under this output pressure that can block valve
It closes, completes the shutdown test of block valve high-low pressure value；
A3, set and export super-pressure and low voltage value, the pressure signal transmission of output in super-pressure and low pressure output module 6
To pressure sensor 18, to stem movement time detecting system 19, system receives preset the treated teletransmission of signal
Signal value starts timing program and starts timing, while pressure signal is sent to block valve interface 20, when block valve 20 is completed to close
Shutdown information is sent to stem movement time detecting system 19 by sensor, and timing program terminates timing, this time is
The turn-off time of block valve；
A4, hydraulic oil enter slope pressure output module 15 by fuel tank 1, the 4th accurate filter 5, are reduced by slope
Pressure value exporting method, pressure signal are delivered to block valve interface 20 by hydraulic cylinder 16, accumulator 17, detect this output pressure
Can block valve close under power, complete the detection of block valve variable slope pressure drop off value；
A5, it sets and exports in slope pressure output module 15 and determine slope reduction pressure pressure value, the pressure signal of output passes
It send to pressure sensor 18, to stem movement time detecting system 19, system receives to be preset the treated teletransmission of signal
Signal value start timing program and start timing, while pressure signal is sent to block valve interface 20, and block valve 20 is completed to close
When shutdown information stem movement time detecting system 19 is sent to by sensor, timing program terminates timing, this time is
For the turn-off time of block valve；
A6, according to the emergency shutdown effect of block valve under different pressure drop rates, evaluation pressure drop rate chain function it is effective
Property, the high-low pressure off value, valve turn-off response time based on safety shut-off valve and sensitivity are recommended well head Truncation Parameters and are cut
Disconnected valve pressure drop rate setpoints.
Super-pressure and low pressure output module 6 include motor 601, hydraulic pump 602, accumulator 603, first pressure gauge 604, the
Two pressure gauges 605, servo valve 606, pressure sensor 607, control module 608, executive component 609；
Motor 601, accumulator 603, first pressure gauge 604, servo valve 606, second pressure gauge 605, is held hydraulic pump 602
Units 609 are sequentially connected, and second pressure gauge 605 is connected with pressure sensor 607, pressure sensor 607, control module 608,
Servo valve 606 is sequentially connected.
Super-pressure force value, low voltage value pressure output method, specific steps include：
The power source of c1, motor 601 as hydraulic pump 602, draw oil completes supercharging by hydraulic pump, after supercharged
Hydraulic oil passes sequentially through accumulator 603, first pressure gauge 604, servo valve 606 and completes ballast, pressure detecting, two-stage supercharging；
C2, amplified hydraulic oil pass through second pressure gauge 605, and pressure signal passes through 607 teletransmission of pressure sensor to control
Molding block 608 forms feedback adjustment signal and send to servo valve 606, dynamically adjusts to setting pressure size and exports；
C3, the hydraulic oil for modulating pressure complete super-pressure by executive component 609 and low pressure signal exports.
Slope pressure output module 15 includes servo motor 1501, hydraulic pump 1502, pressure gauge 1503, combination sensor
1504, solenoid directional control valve 1505, gear motor 1506, overflow valve 1507, electromagnetic relief valve 1508, A/D converter 1509, calculating
Machine 1510, D/A converter 1511；
Servo motor 1501, hydraulic pump 1502, pressure gauge 1503, combination sensor 1504, solenoid directional control valve 1505, gear
Motor 1506, overflow valve 1507 are sequentially connected, and hydraulic pump 1502 is connected with electromagnetic relief valve 1508, combination sensor 1504, A/D
Converter 1509, computer 1510, D/A converter 1511, overflow valve 1507 are sequentially connected, D/A converter 1511, servo motor
1501, A/D converter 1509 is linked in sequence.
Slope reduces pressure value exporting method, and specific steps include：
1502 draw oil of the hydraulic pump completion supercharging of d1,1501 adjusting control of servo motor, hydraulic oil after supercharged
Sequence completes pressure detecting, signal teletransmission by pressure gauge 1503, combination sensor 1504；
D2, A/D converter 1509 are completed signal and are received, and signal are delivered to computer 1510 after processing, signal numerical value reaches
Value computer 1510 to setting send feedback signal to D/A converter 1511, and adjusting servo motor 1501 reduces rotating speed so that
1502 output pressure of hydraulic pump of drive determines slope reduction；
D3, determine slope reduce pressure value hydraulic oil be delivered to successively it is complete after solenoid directional control valve 1505, gear motor 1506
Pressure pressure duty pressure output is reduced at slope is determined.
Temperature control system 13 includes accurate filter 1301, motor 1302, circulating pump 1303, overflow valve 1304, check valve
1305, first manual valve 1306, the second hand-operated valve 1307, cooler 1308, electromagnetic heating coil 1309；
Motor 1302, circulating pump 1303, overflow valve 1304 are sequentially connected, accurate filter 1301, circulating pump 1303, list
Sequentially it is connected to valve 1305, first manual valve 1306, cooler 1308, the second hand-operated valve 1307 and 1309 phase of electromagnetic heating coil
Even.
Temperature control method, specific steps include：
When b1, hydraulic oil high oil temperature, first manual valve 1306, cooler 1308 are opened, and motor 1302 drives cycle
It pumps 1303 draw oils and passes sequentially through accurate filter 1301, check valve 1305, first manual valve 1306, reach cooler
Cooling is completed after 1308；
When b2, hydraulic oil oil temperature are too low, the second hand-operated valve 1307, electromagnetic heating coil 1309 are opened, 1302 band of motor
Dynamic 1303 draw oil of circulating pump passes sequentially through accurate filter 1301, check valve 1305, the second hand-operated valve 1307, reaches electricity
Heating is completed after magnetic heating coil 1309.
Invention has the beneficial effects that：
(1) present invention is generally directed to shale gas Well site safety control systems, by designing shale gas Well site safety control system
System adaptive testing device, wherein super-pressure and the design of low pressure Work condition analogue signal output function can be to blocking well head safe
Valve carries out adaptive testing, is verified to its high-low pressure off value, and then analyze and recommend high-low pressure cutoff value, reduces well head
Superpressure or the decompression risk caused by downstream；
(2) it is to complete to determine slope pressure drop analog signal output function, devises accumulator and hydraulic cylinder, servo motor drive
It is dynamic, when motor is run with different rates, pressure can be made to decline with Different Slope, achieve the purpose that pressure drop slope adjustment；
Operating mode is leaked to simulate well site, Different Slope pressure drop is exported, tests urgent block valve turn-off time and effect, analyze and recommend
Best pressure drop slope off value reduces leakage influence caused by Well site safety；
(3) stem movement time detecting system is established, pressure signal and valve cut-off signals are received, determines that valve turns off
Time, to evaluate safety control system sensitivity, reaction time；
(4) build temperature control system, analysis of hydraulic oil overheat or it is too low when system open, exchange heat to hydraulic oil, to prevent
Only test device is damaged.
Description of the drawings
Fig. 1 is shale gas Well site safety control system adaptive testing schematic device in the embodiment of the present invention.
Fig. 2 is super-pressure and low pressure output module flow chart in the embodiment of the present invention.
Fig. 3 is slope pressure output module flow diagram in the embodiment of the present invention.
Fig. 4 is temperature control system flow chart in the embodiment of the present invention.
Fig. 5 is servo valve control schematic diagram in the embodiment of the present invention.
Fig. 6 is servo motor work flow diagram in the embodiment of the present invention.
Fig. 7 is stem movement time detecting system flow diagram in the embodiment of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is described below in conjunction with the accompanying drawings, to be better understood from the present invention.
Embodiment
A kind of shale gas Well site safety control system adaptive testing device is as shown in Figure 1, accurate including fuel tank 1, first
Filter 2, the second accurate filter 3, third accurate filter 4, the 4th accurate filter 5, super-pressure and low pressure output module
6, overflow valve 7, throttle valve 8, the first relief valve 9, the second relief valve 10, liquid level gauge 11, thermometer 12, temperature control system 13, air
Filter 14, slope pressure output module 15, hydraulic cylinder 16, accumulator 17, pressure sensor 18, stem movement time detection system
System 19, block valve interface 20, fuel outlet valve 21；
Fuel tank 1 is sequentially connected with the first accurate filter 2, super-pressure and low pressure output module 6 and overflow valve 7, superelevation
Pressure and low pressure output module 6 are sequentially connected with throttle valve 8, fuel tank 1, super-pressure and low pressure output module 6, the first relief valve 9, the
Two accurate filters 3, fuel tank 1 are sequentially connected, liquid level gauge 11, thermometer 12, temperature control system 13,14 fuel outlet valve 21 of air filter
It is connected respectively with fuel tank 1, super-pressure and low pressure output module 6 are sequentially connected with pressure sensor 18, block valve interface 20, pressure
Sensor 18 is connected with stem movement time detecting system 19, fuel tank 1, the 4th accurate filter 5, slope pressure output module
15, the second relief valve 10, third accurate filter 4 are sequentially connected, slope pressure output module 15, hydraulic cylinder 16, accumulator 17,
Pressure sensor 18, block valve interface 20 are linked in sequence.
A kind of shale gas Well site safety control system adaptive testing method, specific steps include：
A1,1 a certain amount of hydraulic oil is injected toward fuel tank, liquid level in fuel tank 1 is monitored by liquid level gauge 11, when liquid level carry
Open 21 draining of fuel outlet valve, thermometer 12 monitor oil temperature, high oil temperature or it is too low when open temperature control system 13, adjusted by temperature
Method makes oil temperature restore normal, and device is started to work；
A2, hydraulic oil enter super-pressure and low pressure output module 6 by fuel tank 1, accurate filter 2, pass through hyperpressure
Value, low voltage value pressure output method, block valve interface 20 is delivered to by pressure signal, detects under this output pressure that can block valve
It closes, completes the shutdown test of block valve high-low pressure value；
A3, set and export super-pressure and low voltage value, the pressure signal transmission of output in super-pressure and low pressure output module 6
To pressure sensor 18, to stem movement time detecting system 19, system receives preset the treated teletransmission of signal
Signal value starts timing program and starts timing, while pressure signal is sent to block valve interface 20, when block valve 20 is completed to close
Shutdown information is sent to stem movement time detecting system 19 by sensor, and timing program terminates timing, this time is
The turn-off time of block valve；
A4, hydraulic oil enter slope pressure output module 15 by fuel tank 1, the 4th accurate filter 5, are reduced by slope
Pressure value exporting method, pressure signal are delivered to block valve interface 20 by hydraulic cylinder 16, accumulator 17, detect this output pressure
Can block valve close under power, complete the detection of block valve variable slope pressure drop off value；
A5, it sets and exports in slope pressure output module 15 and determine slope reduction pressure pressure value, the pressure signal of output passes
It send to pressure sensor 18, to stem movement time detecting system 19, system receives to be preset the treated teletransmission of signal
Signal value start timing program and start timing, while pressure signal is sent to block valve interface 20, and block valve 20 is completed to close
When shutdown information stem movement time detecting system 19 is sent to by sensor, timing program terminates timing, this time is
For the turn-off time of block valve；
A6, according to the emergency shutdown effect of block valve under different pressure drop rates, evaluation pressure drop rate chain function it is effective
Property, the high-low pressure off value, valve turn-off response time based on safety shut-off valve and sensitivity are recommended well head Truncation Parameters and are cut
Disconnected valve pressure drop rate setpoints.
Super-pressure and low pressure output module flow chart are as shown in Figure 2.Super-pressure and low pressure output module 6 include motor 601,
Hydraulic pump 602, accumulator 603, first pressure gauge 604, second pressure gauge 605, servo valve 606, pressure sensor 607, control
Module 608, executive component 609；
Motor 601, accumulator 603, first pressure gauge 604, servo valve 606, second pressure gauge 605, is held hydraulic pump 602
Units 609 are sequentially connected, and second pressure gauge 605 is connected with pressure sensor 607, pressure sensor 607, control module 608,
Servo valve 606 is sequentially connected.
Super-pressure force value, low voltage value pressure output method, specific steps include：
The power source of c1, motor 601 as hydraulic pump 602, draw oil completes supercharging by hydraulic pump, after supercharged
Hydraulic oil passes sequentially through accumulator 603, first pressure gauge 604, servo valve 606 and completes ballast, pressure detecting, two-stage supercharging；
C2, amplified hydraulic oil pass through second pressure gauge 605, and pressure signal passes through 607 teletransmission of pressure sensor to control
Molding block 608 forms feedback adjustment signal and send to servo valve 606, dynamically adjusts to setting pressure size and exports；
C3, the hydraulic oil for modulating pressure complete super-pressure by executive component 609 and low pressure signal exports.
Slope pressure output module flow diagram is as shown in Figure 3.Slope pressure output module 15 includes servo motor 1501, liquid
Press pump 1502, pressure gauge 1503, combination sensor 1504, solenoid directional control valve 1505, gear motor 1506, overflow valve 1507, electricity
Magnetic overflow valve 1508, A/D converter 1509, computer 1510, D/A converter 1511；
Servo motor 1501, hydraulic pump 1502, pressure gauge 1503, combination sensor 1504, solenoid directional control valve 1505, gear
Motor 1506, overflow valve 1507 are sequentially connected, and hydraulic pump 1502 is connected with electromagnetic relief valve 1508, combination sensor 1504, A/D
Converter 1509, computer 1510, D/A converter 1511, overflow valve 1507 are sequentially connected, D/A converter 1511, servo motor
1501, A/D converter 1509 is linked in sequence.
Slope reduces pressure value exporting method, and specific steps include：
1502 draw oil of the hydraulic pump completion supercharging of d1,1501 adjusting control of servo motor, hydraulic oil after supercharged
Sequence completes pressure detecting, signal teletransmission by pressure gauge 1503, combination sensor 1504；
D2, A/D converter 1509 are completed signal and are received, and signal are delivered to computer 1510 after processing, signal numerical value reaches
Value computer 1510 to setting send feedback signal to D/A converter 1511, and adjusting servo motor 1501 reduces rotating speed so that
1502 output pressure of hydraulic pump of drive determines slope reduction；
D3, determine slope reduce pressure value hydraulic oil be delivered to successively it is complete after solenoid directional control valve 1505, gear motor 1506
Pressure value output is reduced at slope.
Temperature control system flow chart figure is as shown in Figure 4.Temperature control system 13 includes accurate filter 1301, motor 1302, follows
Ring pump 1303, overflow valve 1304, check valve 1305, first manual valve 1306, the second hand-operated valve 1307, cooler 1308, electromagnetism
Heating coil 1309；
Motor 1302, circulating pump 1303, overflow valve 1304 are sequentially connected, accurate filter 1301, circulating pump 1303, list
Sequentially it is connected to valve 1305, first manual valve 1306, cooler 1308, the second hand-operated valve 1307 and 1309 phase of electromagnetic heating coil
Even.
Temperature control method, specific steps include：
When b1, hydraulic oil high oil temperature, first manual valve 1306, cooler 1308 are opened, and motor 1302 drives cycle
It pumps 1303 draw oils and passes sequentially through accurate filter 1301, check valve 1305, first manual valve 1306, reach cooler
Cooling is completed after 1308；
When b2, hydraulic oil oil temperature are too low, the second hand-operated valve 1307, electromagnetic heating coil 1309 are opened, 1302 band of motor
Dynamic 1303 draw oil of circulating pump passes sequentially through accurate filter 1301, check valve 1305, the second hand-operated valve 1307, reaches electricity
Heating is completed after magnetic heating coil 1309.
Fig. 5 is servo valve control schematic diagram.Command signal controls hydraulic pressure after the amplification of the power amplification element of servo valve
The output of oil.The output state parameter of sensor detection executive component and the control element realization closed loop control for feeding back to servo valve
System.Due to servo valve require the higher hydraulic oil of cleannes, fluid slightly pollute will wear in addition obturating element and cause be
System degradation, thus hydraulic oil flows out and is both needed to filter by accurate filter when being back to fuel tank.
Fig. 6 is servo motor work flow diagram.Servomotor drives constant displacement pump hydraulic power source, control system to use closed loop control
System, collected system pressure and flow value, after power calculator operation compared with setting value, the deviation signal of generation
After controller is adjusted, control voltage signal is exported to control motor speed, changes flow system flow, to make system power reach
Setting value.During the work time, when load pressure increases, when hydraulic power source system power is greater than the set value, controller keeps control electric
Pressure reduces, and motor speed declines, and flow declines, and system power can also decline therewith, until system power is equal with setting value；Instead
It, when load pressure reduces, and hydraulic power source system power is less than setting value, controller makes control voltage rise, on motor speed
It rises, flow rises, and system power can also rise therewith, until system power is equal with setting value, to make system power always
Bearing power is followed, achievees the purpose that flow is controlled to adjust with pressure.
Fig. 7 stem movement time detecting system flow diagrams.Program starts, and first carries out system initialization, and then selection is set
Definite value classification, i.e. selection are high-voltage value, low voltage value, determine one kind in slope pressure drop values, and arrange parameter；Then judge whether
Pressure value signal is collected, is then carried out compared with setting value if being, equal with setting value, timing starts, and collects valve
Then timing stops door cut-off signals, EP (end of program).
It is above-mentioned only with embodiment come the technology contents that further illustrate the present invention, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by the present invention's
Protection.Protection scope of the present invention is subject to claims.
Claims (8)
1. a kind of shale gas Well site safety control system adaptive testing device, it is characterised in that：Including fuel tank (1), the first essence
Close filter (2), the second accurate filter (3), third accurate filter (4), the 4th accurate filter (5), super-pressure and low
Press output module (6), overflow valve (7), throttle valve (8), the first relief valve (9), the second relief valve (10), liquid level gauge (11), temperature
Degree meter (12), temperature control system (13), air filter (14), slope pressure output module (15), hydraulic cylinder (16), accumulator
(17), pressure sensor (18), stem movement time detecting system (19), block valve interface (20), fuel outlet valve (21)；
The fuel tank (1) connects successively with the first accurate filter (2), super-pressure and low pressure output module (6) and overflow valve (7)
It connects, the super-pressure and low pressure output module (6) are connected with throttle valve (8), fuel tank (1) sequence, and the super-pressure and low pressure are defeated
Go out module (6), the first relief valve (9), the second accurate filter (3), fuel tank (1) sequence to be connected, the liquid level gauge (11), temperature
Meter (12), temperature control system (13), air filter (14), fuel outlet valve (21) are connected with fuel tank (1) respectively, the super-pressure and low
Pressure output module (6) is sequentially connected with pressure sensor (18), block valve interface (20), the pressure sensor (18) and valve rod
Run duration detecting system (19) be connected, the fuel tank (1), the 4th accurate filter (5), slope pressure output module (15),
Second relief valve (10), third accurate filter (4) are sequentially connected, the slope pressure output module (15), hydraulic cylinder (16),
Accumulator (17), pressure sensor (18), block valve interface (20) are linked in sequence.
2. a kind of shale gas Well site safety control system adaptive testing device according to claim 1, it is characterised in that：
The super-pressure and low pressure output module (6) include motor (601), hydraulic pump (602), accumulator (603), first pressure gauge
(604), second pressure gauge (605), servo valve (606), pressure sensor (607), control module (608), executive component
(609)；
The motor (601), hydraulic pump (602), accumulator (603), first pressure gauge (604), servo valve (606), the second pressure
Power table (605), executive component (609) are sequentially connected, and the second pressure gauge (605) is connected with pressure sensor (607), described
Pressure sensor (607), control module (608), servo valve (606) are sequentially connected.
3. a kind of shale gas Well site safety control system adaptive testing device according to claim 1, it is characterised in that：
The slope pressure output module (15) includes servo motor (1501), hydraulic pump (1502), pressure gauge (1503), combination sensing
Device (1504), solenoid directional control valve (1505), gear motor (1506), overflow valve (1507), electromagnetic relief valve (1508), A/D turn
Parallel operation (1509), computer (1510), D/A converter (1511)；
The servo motor (1501), hydraulic pump (1502), pressure gauge (1503), combination sensor (1504), solenoid directional control valve
(1505), gear motor (1506), overflow valve (1507) are sequentially connected, the hydraulic pump (1502) and electromagnetic relief valve (1508)
It is connected, the combination sensor (1504), A/D converter (1509), computer (1510), D/A converter (1511), overflow valve
(1507) it is sequentially connected, the D/A converter (1511), servo motor (1501), A/D converter (1509) are linked in sequence.
4. a kind of shale gas Well site safety control system adaptive testing device according to claim 1, it is characterised in that：
The temperature control system (13) include accurate filter (1301), motor (1302), circulating pump (1303), overflow valve (1304),
Check valve (1305), first manual valve (1306), the second hand-operated valve (1307), cooler (1308), electromagnetic heating coil
(1309)；
The motor (1302), circulating pump (1303), overflow valve (1304) are sequentially connected, the accurate filter (1301),
Circulating pump (1303), check valve (1305), first manual valve (1306), cooler (1308) sequence are connected, and described second manually
Valve (1307) is connected with electromagnetic heating coil (1309).
5. a kind of shale gas Well site safety control system adaptive testing method, which is characterized in that specific steps include：
A1, a certain amount of hydraulic oil is injected toward fuel tank (1), fuel tank (1) interior liquid level, liquid level carry is monitored by liquid level gauge (11)
Shi Kaiqi fuel outlet valves (21) draining, thermometer (12) monitor oil temperature, high oil temperature or it is too low when open temperature control system (13), pass through
Temperature control method makes oil temperature restore normal, and device is started to work；
A2, hydraulic oil enter super-pressure and low pressure output module (6) by fuel tank (1), accurate filter (2), pass through super-pressure
Pressure signal is delivered to block valve interface (20), detects block valve under this output pressure by force value, low voltage value pressure output method
It can close, complete the shutdown test of block valve high-low pressure value；
A3, it is set in super-pressure and low pressure output module (6) and exports super-pressure and low voltage value, the pressure signal of output is sent to
Pressure sensor (18), to stem movement time detecting system (19), system receives to be preset the treated teletransmission of signal
Signal value start timing program and start timing, while pressure signal is sent to block valve interface (20), and block valve (20) is completed
Information being turned off when closing, stem movement time detecting system (19) being sent to by sensor, timing program terminates timing, this section
Time is the turn-off time of block valve；
A4, hydraulic oil enter slope pressure output module (15) by fuel tank (1), the 4th accurate filter (5), are dropped by slope
Low pressure values output method, pressure signal are delivered to block valve interface (20) by hydraulic cylinder (16), accumulator (17), detect
Can block valve close under this output pressure, complete the detection of block valve variable slope pressure drop off value；
A5, it sets and exports in slope pressure output module (15) and determine slope reduction pressure pressure value, the pressure signal transmission of output
To pressure sensor (18), to stem movement time detecting system (19), system receives to be set the treated teletransmission of signal in advance
Fixed signal value starts timing program and starts timing, while pressure signal is sent to block valve interface (20), and block valve (20) is complete
Stem movement time detecting system (19) is sent to by sensor at shutdown information when closing, timing program terminates timing, this
The section time is the turn-off time of block valve；
A6, according to the emergency shutdown effect of block valve under different pressure drop rates, evaluate the validity of pressure drop rate chain function, base
In the high-low pressure off value of safety shut-off valve, valve turn-off response time and sensitivity, recommend well head Truncation Parameters and block valve
Pressure drop rate setting value.
6. a kind of shale gas Well site safety control system adaptive testing method according to claim 5, which is characterized in that
The temperature control method, specific steps include：
When b1, hydraulic oil high oil temperature, first manual valve (1306), cooler (1308) are opened, and motor (1302) drive follows
Ring pump (1303) draw oil passes sequentially through accurate filter (1301), check valve (1305), first manual valve (1306), arrives
Complete cooling afterwards up to cooler (1308)；
When b2, hydraulic oil oil temperature are too low, the second hand-operated valve (1307), electromagnetic heating coil (1309) are opened, motor (1302)
Circulating pump (1303) draw oil is driven to pass sequentially through accurate filter (1301), check valve (1305), the second hand-operated valve
(1307), it reaches electromagnetic heating coil (1309) and completes heating afterwards.
7. a kind of shale gas Well site safety control system adaptive testing method according to claim 5, which is characterized in that
The super-pressure force value, low voltage value pressure output method, specific steps include：
The power source of c1, motor (601) as hydraulic pump (602), draw oil completes supercharging by hydraulic pump, after supercharged
Hydraulic oil passes sequentially through accumulator (603), first pressure gauge (604), servo valve (606) and completes ballast, pressure detecting, two level increasing
Pressure；
C2, amplified hydraulic oil pass through second pressure gauge (605), and pressure signal passes through pressure sensor (607) teletransmission to control
Molding block (608) forms feedback adjustment signal and send to servo valve (606), dynamically adjusts to setting pressure size and exports；
C3, the hydraulic oil for modulating pressure complete super-pressure by executive component (609) and low pressure signal exports.
8. a kind of shale gas Well site safety control system adaptive testing method according to claim 5, which is characterized in that
The slope reduces pressure value exporting method, and specific steps include：
Hydraulic pump (1502) draw oil completion supercharging of d1, servo motor (1501) adjusting control, hydraulic oil after supercharged
Sequence completes pressure detecting, signal teletransmission by pressure gauge (1503), combination sensor (1504)；
D2, A/D converter (1509) are completed signal and are received, and signal are delivered to computer (1510) after processing, signal numerical value reaches
Value computer (1510) to setting send feedback signal to D/A converter (1511), adjusts servo motor (1501) reduction and turns
Speed so that hydraulic pump (1502) output pressure of drive determines slope reduction；
It is complete afterwards that d3, the hydraulic oil for determining slope reduction pressure value are delivered to solenoid directional control valve (1505), gear motor (1506) successively
Pressure value output is reduced at slope.
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