CN105158650A - Pressure tube ablation simulating apparatus - Google Patents
Pressure tube ablation simulating apparatus Download PDFInfo
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- CN105158650A CN105158650A CN201510437140.XA CN201510437140A CN105158650A CN 105158650 A CN105158650 A CN 105158650A CN 201510437140 A CN201510437140 A CN 201510437140A CN 105158650 A CN105158650 A CN 105158650A
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Abstract
The invention discloses a pressure tube ablation simulating apparatus comprising a test device, a power supply and potential measuring device, a water vapor generating device, and a slide rail transmission device. The test device comprises a case body and an experimental table in the case body. A horizontal slide rail is horizontally fixed to the experimental table. Support clamps are fixed to a fixed slide block and a movable slide block on the horizontal slide rail in order to be equipped with two pressure tubes required to be tested. The water vapor generating device supplies water vapor to the case body. The slide rail transmission device controls the movable slide block to move. The power supply and potential measuring device is connected with the two pressure tubes through a first through hole, supplies power to the two pressure tubes, and records a voltage parameter in order to obtain safety distance, not generating discharge, of the two pressure tubes. The pressure tube ablation simulating apparatus solves a technical problem the distance and the potential difference between the pressure tubes are not easy to control and thus cause a high safety risk, and achieves an effect of improving the safety performance of block valve chamber of a gas pipeline.
Description
Technical field
The present invention relates to natural gas line conveying technology and conduit running security technology area, particularly relate to a kind of pressure guiding pipe ablation analogue means.
Background technology
In gas industry, the normal heavy caliber steel buried pipeline that adopts carries out long distance delivery.According to the design code of Oil & Gas Storage project, on long distance gas pipeline main line, at a certain distance or pipeline by special pipeline section time, must arrange and block valve chamber, block valve shutoff is carried out in time during to guarantee the repairing of pipeline dimension, thus the loss that may cause of reduction accident as much as possible and environmental pollution.At present, gas pipe line block valve is by gas-liquid linked control, and system generally includes the parts compositions such as gas-liquid linked block valve, control box, solenoid valve, pressure transducer, impulse pipeline.The principle of work of block valve is that gas-liquid linked block valve control system gas circuit is by the pressure transducer in pipeline Access Control case and Controlling solenoid valve.During work, pressure transducer in control box gathers gaseous tension in pipeline by pressure guiding pipe, pass valve condition according to set-up of control system provides electric signal, opening or closing with Controlling solenoid valve, and then connect the fluid cylinder of source of the gas and block valve, push away liquid with gas, and then drive block valve rotating mechanism to drive ball valve work.
But in the daily operation process of gas pipe line, find existingly to block valve chamber design and there is following potential safety hazard: valve body and pressure guiding pipe are directly and main pipeline electric connection and be subject to the protection of main line cathodic protection current.The equipment of valve head or electrical equipment then needs ground protection.In order to address this problem, generally at valve head, control box and five degree of pads of installing insulating between switch enclosure and valve body.In addition valve head, pressure guiding pipe between control box and valve body should adopt isolating joint to give electric isolution.At present along with block valve body structure is day by day compact, the phenomenon of these pressure guiding pipes closely crossing parallel is day by day serious.When the voltage difference existed between pressure guiding pipe exceedes the hypotelorism of critical value or adjacent channel, there will be pressure guiding pipe electric discharge and its tube wall ablation is bored a hole, finally cause natural gas leaking thus cause gas pipe line to occur safe operation risk.
That is, in prior art, the Distance geometry potential difference (PD) between pressure guiding pipe is wayward, easily occurs pressure guiding pipe electric discharge and tube wall ablation is bored a hole, there is the technical matters that security risk is high.
Summary of the invention
The present invention is by providing a kind of pressure guiding pipe ablation analogue means, and the Distance geometry potential difference (PD) solved in prior art between pressure guiding pipe is wayward, easily occurs pressure guiding pipe electric discharge and tube wall ablation is bored a hole, there is the technical matters that security risk is high.
The embodiment of the present application provides following technical scheme:
A kind of pressure guiding pipe ablation analogue means, described analogue means comprises test unit, power supply and potential test device, water vapor generation device and slide rail gearing;
Described test unit comprises:
Casing; Described casing offers the first through hole, the second through hole and third through-hole;
Experiment table; Be positioned at described casing; On described experiment table, level is fixed with horizontal slide rail; Described horizontal slide rail is provided with fixing slide block and movable slide; Described fixing slide block and described movable slide are all fixed with stent holder, to install two pressure guiding pipes that need test; Wherein, described fixing slide block is fixed on described horizontal slide rail; Described movable slide can move along described horizontal slide rail;
Wherein, described water vapor generation device is connected with described second through hole, to input water vapor by described second through hole in described casing, to control the humidity in described casing;
Described slide rail gearing is connected with described movable slide by described third through-hole, moves to control described movable slide, thus controls the distance between described two pressure guiding pipes;
Described power supply and potential test device are connected with described two pressure guiding pipes by described first through hole, think that described two pressure guiding pipes are powered, and record the voltage parameter of described two pressure guiding pipes, with enable according to described humidity, voltage parameter described in described Distance geometry, obtains the safe distance that described two pressure guiding pipes do not occur to discharge.
Optionally, the material of described casing is transparent organic glass.
Optionally, described casing also comprises: upper end cover and bottom end cover; Described upper end cover and described bottom end cover be dismountable two ends being fixed on described casing respectively; So that the installation of described experiment table and unloading.
Optionally, described casing also offers fourth hole, so that the water vapor condensation in described casing is discharged.
Optionally, described test unit also comprises: fan, and described fan is positioned at described casing, for accelerating being uniformly distributed of water vapor in described casing.
Optionally, described test unit also comprises: hygrometer, and described hygrometer is positioned at described casing, to measure the humidity in described casing.
Optionally, described test unit also comprises: the first rule, and described first rule level is fixed on described horizontal slide rail; Described fixing slide block is fixed on the null position of described first rule.
Optionally, described power supply and potential test device comprise: power supply, shunt resistance, power switch and datalogger; Wherein, the positive pole of described datalogger and negative pole are connected on two described stent holders respectively, to record the voltage parameter of described two pressure guiding pipes; After described power supply is connected with described shunt resistance and described power switch, more in parallel with described datalogger.
Optionally, described water vapor generation device comprises: steam evaporator, flowmeter and conduit; Wherein, described steam evaporator is connected with described second through hole by described conduit; Described flowmeter is fixed between described steam evaporator and described second through hole, to detect the flow of the water vapor inputting described casing.
Optionally, described slide rail gearing comprises: drive link, coarse adjustment knob, tangent screw, bracket and the second rule; Wherein, described bracket inserts in described casing by described third through-hole, and one end of described bracket is connected with described movable slide by described drive link, and the other end is connected with described second rule, described coarse adjustment knob and described tangent screw; When described coarse adjustment knob and/or described tangent screw rotate, described drive link is driven to move, with mobile described movable slide.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
The pressure guiding pipe ablation analogue means that the embodiment of the present invention provides, can be used for natural-gas transfer pipeline and block valve chamber pressure guiding pipe sparking Calculation of Safety Distance and influence element assessment.Can simulate and block the discharge scenario of valve chamber pressure guiding pipe under different distance, potential difference (PD) and damp condition, this device can simulate block valve pressure guiding pipe field working conditions, calculates under different voltage and different humidity, and the safe distance discharged does not occur adjacent impulse pipeline.Result of calculation can be the gas-liquid linked block valve pressure guiding pipe installation of valve chamber and provides foundation, avoid making because of voltage difference electric discharge the problem that tube wall ablation is bored a hole between pressure guiding pipe, thus reduce the generation of gas pipe line leakage and the explosion accident caused because of pressure guiding pipe ablation, improve the security performance that gas pipe line blocks valve chamber.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural drawing of pressure guiding pipe ablation analogue means in the embodiment of the present application.
Embodiment
The embodiment of the present invention is by providing a kind of pressure guiding pipe ablation analogue means, and the Distance geometry potential difference (PD) solved in prior art between pressure guiding pipe is wayward, easily occurs pressure guiding pipe electric discharge and tube wall ablation is bored a hole, the technical matters that the security risk of existence is high.This device can simulate the security setting Distance geometry potential difference (PD) between pressure guiding pipe, thus the setting blocking valve chamber pressure guiding pipe for gas pipe line provides reliable experimental data, improves the security performance that gas pipe line blocks valve chamber.
For solving the problems of the technologies described above, the embodiment of the present application provides the general thought of technical scheme as follows:
The application provides a kind of pressure guiding pipe ablation analogue means, and described analogue means comprises test unit, power supply and potential test device, water vapor generation device and slide rail gearing;
Described test unit comprises:
Casing; Described casing offers the first through hole, the second through hole and third through-hole;
Experiment table; Be positioned at described casing; On described experiment table, level is fixed with horizontal slide rail; Described horizontal slide rail is provided with fixing slide block and movable slide; Described fixing slide block and described cross sliding clock are all fixed with stent holder, to install two pressure guiding pipes that need test; Wherein, described fixing slide block is fixed on described horizontal slide rail; Described movable slide can move along described horizontal slide rail;
Wherein, described water vapor generation device is connected with described second through hole, to input water vapor by described second through hole in described casing, to control the humidity in described casing;
Described slide rail gearing is connected with described movable slide by described third through-hole, moves to control described movable slide, thus controls the distance between described two pressure guiding pipes;
Described power supply and potential test device are connected with described two pressure guiding pipes by described first through hole, think that described two pressure guiding pipes are powered, and record the voltage parameter of described two pressure guiding pipes, with enable according to described humidity, voltage parameter described in described Distance geometry, obtains the safe distance that described two pressure guiding pipes do not occur to discharge.
Can be found out by foregoing, described pressure guiding pipe ablation analogue means, natural-gas transfer pipeline can be used for and block valve chamber pressure guiding pipe sparking Calculation of Safety Distance and influence element assessment.Can simulate and block the discharge scenario of valve chamber pressure guiding pipe under different distance, potential difference (PD) and damp condition, this device can simulate block valve pressure guiding pipe field working conditions, calculates under different voltage and different humidity, and the safe distance discharged does not occur adjacent impulse pipeline.Result of calculation can be the gas-liquid linked block valve pressure guiding pipe installation of valve chamber and provides foundation, avoid making because of voltage difference electric discharge the problem that tube wall ablation is bored a hole between pressure guiding pipe, thus reduce the generation of gas pipe line leakage and the explosion accident caused because of pressure guiding pipe ablation, improve the security performance that gas pipe line blocks valve chamber.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technical characteristic in the embodiment of the present application and embodiment can combine mutually.
In the present embodiment, provide a kind of pressure guiding pipe ablation analogue means, please refer to Fig. 1, Fig. 1 is the structural drawing of pressure guiding pipe ablation analogue means in the embodiment of the present application, as shown in Figure 1, described analogue means comprises test unit 101, power supply and potential test device 102, water vapor generation device 103 and slide rail gearing 104;
Described test unit 101 comprises:
Casing 1; Described casing 1 offers the first through hole 2, second through hole 3 and third through-hole 4;
Experiment table 5; Be positioned at described casing 1; On described experiment table 5, level is fixed with horizontal slide rail 6; Described horizontal slide rail 6 is provided with fixing slide block 7 and movable slide 8; Described fixing slide block 7 and described movable slide 8 are all fixed with stent holder 9, to install two pressure guiding pipes 10 that need test; Wherein, described fixing slide block 7 is fixed on described horizontal slide rail 6; Described movable slide 8 can move along described horizontal slide rail 6;
Wherein, described water vapor generation device 103 is connected with described second through hole 3, to input water vapor by described second through hole 3 in described casing 1, to control the humidity in described casing 1;
Described slide rail gearing 104 is crossed described third through-hole 4 and is connected with described movable slide 8, moves, thus control the distance between described two pressure guiding pipes 10 to control described movable slide 8;
Described power supply and potential test device 102 are connected with described two pressure guiding pipes 10 by described first through hole 2, think that described two pressure guiding pipes 10 are powered, and record the voltage parameter of described two pressure guiding pipes 10, with enable according to described humidity, voltage parameter described in described Distance geometry, obtains the safe distance that described two pressure guiding pipes 10 do not occur to discharge.
The main operational principle of the pressure guiding pipe ablation analogue means that the embodiment of the present application provides is: by described slide rail gearing 104 change pressure guiding pipe sample distance, by power supply and potential test device 102 given voltage is set, the external conditions such as humidity environment is set by described water vapor generation device 103, thus the working condition of two pressure guiding pipes 10 under different distance, potential difference (PD) and humidity environment, to study the situation of change of the safe-discharge distance of pressure guiding pipe sample.
Introduce the test unit 101 of described pressure guiding pipe ablation analogue means, power supply and the structure of potential test device 102, water vapor generation device 103 and slide rail gearing 104 and the analogy method of described pressure guiding pipe ablation analogue means below respectively:
First, test unit 101 structure of described pressure guiding pipe ablation analogue means is introduced.
Described test unit 101 mainly comprises casing 1, experiment table 5, horizontal slide rail 6, fixing slide block 7, movable slide 8, stent holder 9 and two pressure guiding pipe 10 samples as shown in Figure 1.
In the embodiment of the present application, the material of described casing 1 is transparent organic glass or other transparent materials, so that observe the distance between sample in experimentation.
In specific implementation process, the recommended size of described casing 1 can be: 1.2m is long, 0.6m is wide and 0.6m is high;
In the embodiment of the present application, described casing 1 also comprises: upper end cover 11 and bottom end cover 12; Described upper end cover 11 and described bottom end cover 12 be dismountable two ends being fixed on described casing 1 respectively; So that the installation of described experiment table and unloading.
Specifically, described casing 1, upper end cover 11, bottom end cover 12 can absolute construction each other, and can use so that lay sample and other experimental provisions by dismountable, such as, upper end cover 11 and bottom end cover 12 can be extracted out from casing 1 upper and lower side.
In the embodiment of the present application, described casing 1 offers the first through hole 2, second through hole 3 and third through-hole 4; Described casing also offers fourth hole 13;
Wherein, described first through hole 2 can be opened in the center of upper end cover 11, with power and potential test device 102 wire turnover casing 1; Preferably, the diameter of described first through hole 2 is 5cm, so that wire wears and prevents too much gas by described first through hole 2;
Described second through hole 3 can be opened in the first side of described casing 1, and the water vapor produced for water vapor generation device 103 enters casing 1; Preferably, the diameter of described second through hole 3 is 5cm;
Described third through-hole 4 can be opened in the second side of described casing 1, and described second side is relative with described first side, enters casing 1 for described slide rail gearing 104;
Described fourth hole 13 can be opened on bottom end cover 12, so that the water vapor in casing 1 meets cold solidifying rear discharge; Preferably, the diameter of described fourth hole 13 is 3cm; The speed that multiple fourth hole 13 is discharged to accelerate water vapor condensation can be set in specific implementation process.
In the embodiment of the present application, described test unit 101 also comprises:
Fan 14, described fan 14 is positioned at described casing 1, for accelerating being uniformly distributed of water vapor in described casing 1.
Specifically, described fan 14 is arranged on the apical position of casing 1, is beneficial to enter water vapor in casing and spreads as early as possible, casing humidity is consistent, and makes the humidity around two pressure guiding pipe 10 samples keep basically identical.
In specific implementation process, fan 14 can use dry cell power supply or external power supply to power, and this is not restricted.
In the embodiment of the present application, described test unit 101 also comprises:
Hygrometer 15, described hygrometer is positioned at described casing, and to measure the humidity in described casing, in specific implementation process, described hygrometer 15 is fixed near two pressure guiding pipes 10, with the air humidity near automatic test sample.
In the embodiment of the present application, described test unit 101 also comprises:
First rule 16, described first rule 16 level is fixed on described horizontal slide rail 6; Described fixing slide block 7 is fixed on the null position of described rule.
Specifically, the parts on experiment table 5 install relation: the lower end of described experiment table 5 is fixed on bottom end cover 12; Experiment table 5 is equipped with fixing horizontal slide rail 6, in the present embodiment, the length of horizontal slide rail 6 can be 0.8m; Horizontal slide rail 6 is installed fixing slide block 7 and movable slide 8, the volume size of described fixing slide block 7 and movable slide 8 can be 5cm × 5cm × 3cm; Wherein, fixing slide block 7 is fixed on horizontal slide rail 6.Fixing slide block 7 bottom center's point overlapped with the zero point of the first rule 16, first rule 16 level is fixed on the leading flank of horizontal slide rail 6, be convenient to the distance of experimenter's its movement of observed and recorded in slide block movement process, and read the distance between two pressure guiding pipe 10 samples when spark phenomenon occurs; Described movable slide 8 can move horizontally under described slide rail gearing 104 promotes; The stent holder 9 that one can be installed pressure guiding pipe 10 sample is respectively installed at the center, upper surface of fixing slide block 7 and movable slide 8, the bottom of described stent holder 9 can rotate when fastening unclamping, and the position relationship be used between adjustment two pressure guiding pipe 10 samples is parallel or intersects.
In specific implementation process, the material of described two pressure guiding pipe 10 samples can be hollow 304 steel pipes, and diameter is 1 ~ 1.5cm.
Next, the described power supply of pressure guiding pipe ablation analogue means and the structure of potential test device 102 is introduced.
In the embodiment of the present application, described power supply and potential test device 102 comprise: power supply 17, shunt resistance 18, power switch 19 and datalogger 20;
Wherein, the positive pole of described datalogger 20 and negative pole are connected on two described stent holders 9 respectively, to record the voltage parameter of described two pressure guiding pipes 10;
As shown in Figure 1, after described power supply 17 is connected with described shunt resistance 18 and described power switch 19, more in parallel with described datalogger 20.
In specific implementation process, described power supply 17 can be multifunctional power 16, can be specifically one or more sets power-supply devices, described power supply 17 answers exportable following several signal: AC and DC electric signal, square wave and high-frequency impulse, wherein, the scope that described AC and DC electric signal exports can be 0 ~ 5000V; The output voltage of square wave is not less than 24V, continuously adjustabe in described high-frequency impulse output duty cycle 10% ~ 60% scope, and average current exports and is not less than 1000A;
In specific implementation process, the major function of described shunt resistance 18 is protection circuit, prevents two pressure guiding pipe 10 samples excessive at electric discharge immediate current.The resistance of described shunt resistance 18 is not less than 10
5Ω, resistance value continuously adjustabe;
In specific implementation process, the both positive and negative polarity of described datalogger 20 is connected on the position of two stent holders 9 respectively.Major function is AC and DC voltage value when discharging in record two pressure guiding pipe 10 sample operational processs, and its sampling rate is not less than 10 times/second, and concrete sampling rate can be 25 times/second.
Subsequently, the structure of the water vapor generation device 103 of described pressure guiding pipe ablation analogue means is introduced.
In the embodiment of the present application, described water vapor generation device 103 comprises: steam evaporator 21, flowmeter 22 and conduit 23;
Wherein, described steam evaporator 21 is connected with described second through hole 3 by described conduit 23; Described flowmeter 22 is fixed between described steam evaporator 21 and described second through hole 3, to detect the flow of the water vapor inputting described casing 1.
In specific implementation process, described steam evaporator 21 should possess stability of flow, the function that temperature is adjustable; Specifically, described steam evaporator 21 is laboratory dedicated water steam generator, and steam outlet temperature is: 110 ~ 180 DEG C, and flow is 0 ~ stability of flow.
In specific implementation process, described flowmeter 22 can realize monitoring continuously water vapor actual flow, and experimentally requires the output of adjustment steam evaporator 20;
In specific implementation process, the water vapor that described steam evaporator 21 produces enters casing 1 by rubber catheter 23 and the second through hole 3.Encapsulation process can be carried out with encapsulant in gap between casing 1 and the second through hole 3.
Subsequently, the structure of the slide rail gearing 104 of described pressure guiding pipe ablation analogue means is introduced.
In the embodiment of the present application, described slide rail gearing 104 comprises: drive link 24, coarse adjustment knob 25, tangent screw 26, bracket 27 and the second rule 28;
Wherein, described bracket 27 inserts in described casing by described third through-hole 4, one end of described bracket 27 is connected with described movable slide 8 by described drive link 24, and the other end is connected with described second rule 28, described coarse adjustment knob 25 and described tangent screw 26; When described coarse adjustment knob 25 and/or described tangent screw 26 rotate, described drive link 24 is driven to move, with mobile described movable slide 8.
Specifically, can being by rotarily driving coarse adjustment knob 25 and/or described tangent screw 26 drives drive link 24 to advance, promoting movable slide 8 and moving forward.It one week is mobile 2mm that described coarse adjustment knob 25 often rotates, and it one week is mobile 0.1mm that tangent screw 26 often rotates.What described second rule 28 showed is the distance that drive link 24 advances, for ease of observing preferred LED digital display screen.
Finally, the analogy method of described pressure guiding pipe ablation analogue means is introduced:
When needing the safe-discharge distance simulating acquisition two pressure guiding pipes 10:
First, installation test device 101, namely opens upper end cover 11 and the bottom end cover 12 of casing 1, experiment table 5 and each parts is above installed, is separately fixed on two stent holders 9 by two pressure guiding pipes 10, and regulates the relative position of two pressure guiding pipes 10;
Then, power supply and potential test device 102, water vapor generation device 103 and slide rail gearing 104 are connected with test unit 101;
Next, the block valve room environmental of simulating as required, the potential difference (PD) of humidity in casing 1 and two pressure guiding pipes 10 is set by power supply and potential test device 102 and water vapor generation device 103, regulate slide rail gearing 104 again, reduce the distance of two pressure guiding pipes 10 gradually, when there is electric discharge spark phenomenon, the current distance between being read by the first rule 16, to be greater than the safe distance that this safe distance is two pressure guiding pipes 10.
When the gas-liquid linked block valve pressure guiding pipe of installation valve chamber, ensure that the distance of two pressure guiding pipes is greater than above-mentioned current distance, to avoid making because of voltage difference electric discharge the problem that tube wall ablation is bored a hole between pressure guiding pipe, thus reduce the generation of gas pipe line leakage and the explosion accident caused because of pressure guiding pipe ablation, improve the security performance that gas pipe line blocks valve chamber.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
The pressure guiding pipe ablation analogue means that the embodiment of the present invention provides, can be used for natural-gas transfer pipeline and block valve chamber pressure guiding pipe sparking Calculation of Safety Distance and influence element assessment.Can simulate and block the discharge scenario of valve chamber pressure guiding pipe under different distance, potential difference (PD) and damp condition, this device can simulate block valve pressure guiding pipe field working conditions, calculates under different voltage and different humidity, and the safe distance discharged does not occur adjacent impulse pipeline.Result of calculation can be the gas-liquid linked block valve pressure guiding pipe installation of valve chamber and provides foundation, avoid making because of voltage difference electric discharge the problem that tube wall ablation is bored a hole between pressure guiding pipe, thus reduce the generation of gas pipe line leakage and the explosion accident caused because of pressure guiding pipe ablation, improve the security performance that gas pipe line blocks valve chamber.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a pressure guiding pipe ablation analogue means, is characterized in that, described analogue means comprises test unit, power supply and potential test device, water vapor generation device and slide rail gearing;
Described test unit comprises:
Casing; Described casing offers the first through hole, the second through hole and third through-hole;
Experiment table; Be positioned at described casing; On described experiment table, level is fixed with horizontal slide rail; Described horizontal slide rail is provided with fixing slide block and movable slide; Described fixing slide block and described movable slide are all fixed with stent holder, to install two pressure guiding pipes that need test; Wherein, described fixing slide block is fixed on described horizontal slide rail; Described movable slide can move along described horizontal slide rail;
Wherein, described water vapor generation device is connected with described second through hole, to input water vapor by described second through hole in described casing, to control the humidity in described casing;
Described slide rail gearing is connected with described movable slide by described third through-hole, moves to control described movable slide, thus controls the distance between described two pressure guiding pipes;
Described power supply and potential test device are connected with described two pressure guiding pipes by described first through hole, think that described two pressure guiding pipes are powered, and record the voltage parameter of described two pressure guiding pipes, with enable according to described humidity, voltage parameter described in described Distance geometry, obtains the safe distance that described two pressure guiding pipes do not occur to discharge.
2. analogue means as claimed in claim 1, it is characterized in that, the material of described casing is transparent organic glass.
3. analogue means as claimed in claim 1, it is characterized in that, described casing also comprises:
Upper end cover and bottom end cover; Described upper end cover and described bottom end cover be dismountable two ends being fixed on described casing respectively; So that the installation of described experiment table and unloading.
4. analogue means as claimed in claim 1, is characterized in that, described casing also offers fourth hole, so that the water vapor condensation in described casing is discharged.
5. analogue means as claimed in claim 1, it is characterized in that, described test unit also comprises:
Fan, described fan is positioned at described casing, for accelerating being uniformly distributed of water vapor in described casing.
6. analogue means as claimed in claim 1, it is characterized in that, described test unit also comprises:
Hygrometer, described hygrometer is positioned at described casing, to measure the humidity in described casing.
7. analogue means as claimed in claim 1, it is characterized in that, described test unit also comprises:
First rule, described first rule level is fixed on described horizontal slide rail; Described fixing slide block is fixed on the null position of described first rule.
8. analogue means as claimed in claim 1, it is characterized in that, described power supply and potential test device comprise: power supply, shunt resistance, power switch and datalogger;
Wherein, the positive pole of described datalogger and negative pole are connected on two described stent holders respectively, to record the voltage parameter of described two pressure guiding pipes;
After described power supply is connected with described shunt resistance and described power switch, more in parallel with described datalogger.
9. analogue means as claimed in claim 1, it is characterized in that, described water vapor generation device comprises: steam evaporator, flowmeter and conduit;
Wherein, described steam evaporator is connected with described second through hole by described conduit; Described flowmeter is fixed between described steam evaporator and described second through hole, to detect the flow of the water vapor inputting described casing.
10. the analogue means as described in as arbitrary in claim 1-9, it is characterized in that, described slide rail gearing comprises: drive link, coarse adjustment knob, tangent screw, bracket and the second rule;
Wherein, described bracket inserts in described casing by described third through-hole, and one end of described bracket is connected with described movable slide by described drive link, and the other end is connected with described second rule, described coarse adjustment knob and described tangent screw; When described coarse adjustment knob and/or described tangent screw rotate, described drive link is driven to move, with mobile described movable slide.
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| CN201510437140.XA CN105158650B (en) | 2015-07-23 | 2015-07-23 | A kind of pressure guiding pipe ablation analogue means |
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| CN201510437140.XA CN105158650B (en) | 2015-07-23 | 2015-07-23 | A kind of pressure guiding pipe ablation analogue means |
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| CN204129167U (en) * | 2014-09-30 | 2015-01-28 | 陕西生益科技有限公司 | A kind of flaky material withstand voltage properties proving installation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196996A (en) * | 1996-01-23 | 1997-07-31 | Ngk Insulators Ltd | Device for testing corona discharge of insulation cylinder and testing method using the device |
| CN203606456U (en) * | 2013-12-06 | 2014-05-21 | 天津德芃科技集团有限公司 | Fireproof electric wire performance test device |
| CN203825112U (en) * | 2014-03-20 | 2014-09-10 | 上海天祥质量技术服务有限公司 | Testing system for electrostatic discharge (ESD) test of air bag |
| CN204129167U (en) * | 2014-09-30 | 2015-01-28 | 陕西生益科技有限公司 | A kind of flaky material withstand voltage properties proving installation |
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