CN206801988U - A kind of aerodynamic device for accurately controlling pressure - Google Patents
A kind of aerodynamic device for accurately controlling pressure Download PDFInfo
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- CN206801988U CN206801988U CN201720635009.9U CN201720635009U CN206801988U CN 206801988 U CN206801988 U CN 206801988U CN 201720635009 U CN201720635009 U CN 201720635009U CN 206801988 U CN206801988 U CN 206801988U
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- pressure
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- accurately controlling
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Abstract
The utility model discloses a kind of aerodynamic device for accurately controlling pressure, including gas cylinder, booster pump, middle pressure cutoff valve, filter, pressure-reducing valve, high-pressure stop valve and the pressure port being sequentially connected, it is connected with electro connecting pressure gauge, middle pressure relief valve, middle pressurized overflow valve and high pressure tank in booster pump connection between pressure cutoff valve on pipeline, middle pressure table is installed between pressure-reducing valve and filter on connecting pipe, is connected with gas high pressure pressurized cylinder, high pressure gauge and high-pressure decompression valve between high pressure valve and pressure port on pipeline；The utility model promotes booster pump toward storing source of the gas in high pressure tank by hydraulic station, when doing experiment, realize that the boosting pressurize of 0~35MPa pressure is depressured by pressure-reducing valve and the regulation of gas high pressure pressurized cylinder, when test pressure is more than 35MPa, realize that boosting pressurize is depressured by hand rotary gas high pressure pressurized cylinder, gas pressurized and the stability of pressure reduction can be realized, reduces noise and vibration, improves the control accuracy of pressurization and pressure reduction.
Description
Technical field
The utility model belongs to high temperature and high voltage experimental device technical field, and in particular to a kind of gas for accurately controlling pressure
Body power set.
Background technology
During Earth rock physicses chemical property is simulated, it have developed many and be applied to HTHP
Experimental provision.In order to obtain certain rock, mineral change of properties at various pressures, it is often necessary to carry out essence to experimental provision
True control pressure.For example, in the pressure vessel of HTHP, if water as transmission medium, when medium is total in vapour-liquid
When depositing the stage, confined pressure actually can not carry out former exactly equal to the saturated vapour pressure of water, the pressure independently of temperature in sample cavity
Position regulation；When medium is in single phase（Such as gaseous state, liquid or above-critical state）If need to be independently of temperature regulation sample in situ
The confined pressure of intracavitary, fresh solution can only be pumped into or release the aqueous fluid that interaction occurred in sample cavity with solid sample,
Obviously the material composition of aqueous fluid system has now been manually changed.Another method is by toward adding argon gas in pressure vessel
Deng inert gas, so that pressure energy is adjusted independently of temperature.And will be toward being pumped into gas in pressure vessel, it is necessary to high pressure
（100 MPa）Gas pressure control device.
For the less pressure vessel of volume, it is desirable to accuracy controlling is carried out to the pressure in pressure vessel, it is necessary to which single is defeated
The less pressure control device of Fluid Volume for entering or exporting, the otherwise once larger pressure control device of minimum input quantity,
The pressure of pressure vessel can be made once to raise tens to hundreds of atmospheric pressure, it is difficult to play the purpose of accurate control pressure（Boosting
All it is 0.1 MPa control accuracy with decompression）.
And under some experimental conditions, be also reduced the demand of vibration, for example, with high temperature and high voltage experimental device associated with essence
Close optical system and spectrometer, in order to which optical focus and measurement effect are good, there are strict requirements to vibration.In this case,
Need also to carry out optics and spectral measurement while pressurization to some high temperature and high voltage experimental devices near spectrometer,
Just make the requirement of vibration harsher.Present most of gas pressurized equipment used are all past using the form of Pneumatic booster pump
It is multiple to be pressurizeed to workpiece, problems among these be present：
（1）The power resources of Pneumatic booster pump are in compressed air, and often demand is larger as the compressed air of power,
Compressed air is not suitable for being provided with compressed gas cylinder, therefore compressed air needs air compressor, and in general air compressor
Vibration and noise are all larger, even if Jing Yin air compressor can not meet demand, it is impossible near spectrometer；
（2）In general high-pressure pneumatic booster pump single-stroke discharge capacity is larger, the less gas boosting pump of single-stroke discharge capacity one
Stroke volume is 19.7 mL, it is impossible to meets the accurate requirement pressurizeed and be depressured；
（3）The general booster pump back and forth to pressurize needs to use check valve, because the design feature of check valve determines unidirectionally
The single minimum throughput of valve is typically bigger, it is impossible to meet the accurate requirement pressurizeed and be accurately depressured, and due to check valve
In the presence of, it is impossible to carry out decompression control using booster pump.
（4）Gas decompression scheme widely used at present, is to carry out pressure release using directly opening relief valve mostly, either
Be depressured by pressure-reducing valve, but due to the mechanical structure feature of pressure-reducing valve just determine pressure-reducing valve control decompression precision compared with
Difference, it can accomplish in 0~100 MPa pressure limit currently without suitable pressure-reducing valve, and in the case of flow very little, control
Precision is pressed in 0.1 MPa product.
The content of the invention
The technical problems to be solved in the utility model is：A kind of aerodynamic device for accurately controlling pressure and side are provided
Method, gas pressurized and the stability of pressure reduction can be realized, noise and vibration is reduced in experimentation, improves control accuracy,
To solve problems of the prior art.
The technical scheme that the utility model is taken is：A kind of aerodynamic device for accurately controlling pressure, including successively
Gas cylinder, booster pump, middle pressure cutoff valve, filter, pressure-reducing valve, high-pressure stop valve and the pressure port of connection, pressed in booster pump connection
Electro connecting pressure gauge, middle pressure relief valve, middle pressurized overflow valve and high pressure tank, pressure-reducing valve and mistake are connected between stop valve on pipeline
Middle pressure table is installed between filter on connecting pipe, is connected with gas high pressure pressurized cylinder, high pressure between high pressure valve and pressure port on pipeline
Table and high-pressure decompression valve.
Preferably, above-mentioned booster pump is connected to electrodynamic pump by reversal valve, and electrodynamic pump is connected to fuel tank.
Preferably, above-mentioned middle pressure cutoff valve is connected between filter by high pressure line.
Preferably, above-mentioned reversal valve, electrodynamic pump and electro connecting pressure gauge are connected to ATS controllers, and ATS controllers are connected to
Remote-control handle.
Preferably, above-mentioned middle pressurized overflow valve and high pressure tank are connected on pipeline by four-way connection.
Preferably, above-mentioned electro connecting pressure gauge and middle pressure relief valve are connected on pipeline by four-way connection.
Preferably, above-mentioned middle pressure table is connected on pipeline by three-way connection.
Preferably, above-mentioned gas high pressure pressurized cylinder is set multiple, is connected to respectively by three-way connection on pipeline.
Preferably, above-mentioned high pressure gauge and high-pressure decompression valve are connected on pipeline by four-way connection.
The beneficial effects of the utility model：Compared with prior art, effect of the present utility model is as follows：
（1）The utility model promotes booster pump being done experiment toward source of the gas is stored in high pressure tank by small-sized hydraulic station
When, 0~35MPa pressure boosting-pressurize-decompression is realized by depressurizing valve regulation, when test pressure is more than 35MPa, is revolved by hand
Turn gas high pressure pressurized cylinder to realize boosting-pressurize-decompression, the stability of gas-pressurization and pressure reduction can be realized,
Noise and vibration are reduced in experimentation, the control accuracy of pressurization and pressure reduction is improved, the pressure in 0~100 MPa can be accomplished
In the range of power, and in the case of flow very little, pressure control precision is in 0.1 MPa；
（2）By pressure segment design, reach test requirements document；
（3）Supercharging is realized using the hydraulic station of booster pump connection during low pressure, pressure-reducing valve pressure regulation, so, power of motor is low, shakes
It is dynamic small；
（4）Using can be manually rotated gas high pressure pressurized cylinder during high pressure, except meeting pressure requirements, vibration can be more reduced, if
Multiple gas high pressure pressurized cylinders are put, can according to circumstances realize the supercharging of bigger pressure, application greatly expands；
（5）Servo-control system that need not be complicated can also accurate control pressure rise and reduction, substantially reduce and be
The complexity and cost of system, the reliability of system work is improved while parts are reduced.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is circuit principle structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described further specific embodiment.
Embodiment 1：As Figure 1-Figure 2, it is a kind of to accurately control the aerodynamic device of pressure, including be sequentially connected
Gas cylinder 1, booster pump 2, middle pressure cutoff valve 3, filter 4, pressure-reducing valve 5, high-pressure stop valve 6 and pressure port 7, during booster pump 2 connects
Electro connecting pressure gauge 8, middle pressure relief valve 9, middle pressurized overflow valve 10 and high pressure tank 11 are connected with 3 pipelines of pressure cutoff valve,
Middle pressure table 12 is installed between pressure-reducing valve 5 and filter 4 on connecting pipe, is connected between high-pressure stop valve 6 and pressure port 7 on pipeline
Gas high pressure pressurized cylinder 13, high pressure gauge 14 and high-pressure decompression valve 15, pressure port front end are provided with pressure sensor 21, pressure sensing
Device 21 is used for the pressure measxurement of under test gas, during experiment, pressure port is connected into testing pressure container chamber, realizes the increasing of pressure
Pressure, decompression, holding pressure control.
Preferably, above-mentioned booster pump 2 is connected to electrodynamic pump 17 by reversal valve 16, and electrodynamic pump 17 is connected to fuel tank 18, oil
The bottom of case 18 is provided with blowoff valve 22, and hydraulic pressure station spill valve 24 and pressure monitor table 25 are provided with the outlet line of electrodynamic pump 17,
And Air cooler 23 is provided with electrodynamic pump, Air cooler is used for the cooling of electrodynamic pump, is connected to ATS controllers, controller connection
There is temperature sensor, temperature sensor is arranged on electronic pump case, according to the temperature change of temperature sensor, automatically adjusts wind
Cold rotating speed.
Preferably, connected between above-mentioned middle pressure cutoff valve 3 and filter 4 by high pressure line 19.
Preferably, above-mentioned reversal valve 16, electrodynamic pump 17 and electro connecting pressure gauge 8 are connected to ATS controllers, ATS controllers
It is connected to remote-control handle 20.
Preferably, above-mentioned middle pressurized overflow valve 10 and high pressure tank 11 are connected on pipeline by four-way connection.
Preferably, above-mentioned electro connecting pressure gauge 8 and middle pressure relief valve 9 are connected on pipeline by four-way connection.
Preferably, above-mentioned middle pressure table 12 is connected on pipeline by three-way connection.
Preferably, above-mentioned gas high pressure pressurized cylinder 13 is set multiple, is connected to respectively by three-way connection on pipeline.
Preferably, above-mentioned high pressure gauge 14 and high-pressure decompression valve 15 are connected on pipeline by four-way connection.
Preferably, the pressure method of above-mentioned a kind of aerodynamic device for accurately controlling pressure, this method include following
Step：
（1）When not doing experiment usually, promote booster pump to be pressurized repeatedly by hydraulic station, produce a high-voltage power supply, Chu Gao
Press in air accumulator, used for rear end；
（2）35MPa tests below:All compressed using two gas high pressure pressurized cylinder leading screws, close high-pressure decompression valve with
Relief valve to be pressed, opens high-pressure stop valve, pressure-reducing valve is adjusted clockwise, pressure increase, adjusts pressure-reducing valve counterclockwise, pressure reduces,
Pressure reduction, after reaching 30MPa by pressure-reducing valve supercharging, pressure cutoff valve in closing, by rollback gas high pressure pressurized cylinder, two
Individual pressurized cylinder is retracted, and pressure can be down to 9MPa by first cylinder from 29.1MPa, and pressure can be down to by second cylinder from 9MPa
5.3MPa；
（3）More than 35MPa is tested：In step（2）35MPa tests below on the basis of, two gas high pressure pressurized cylinders
Leading screw all retract, close high-pressure stop valve, clockwise adjust gas high pressure pressurized cylinder, pressure increase, adjust gas counterclockwise
Body high pressure pressurized cylinder, pressure are reduced, and pressure is higher, and each anglec of rotation is smaller.Start pressurize, if pressure maintaining period pressure has ripple
It is dynamic, it can be finely tuned by gas high pressure pressurized cylinder to maintain pressure stability.
Pressurized cylinder pump hydraulic station part operation step：
1）From pouring orifice, hydraulic station fuel tank is filled into 46# antiwear hydraulic oils；
2）Gas cylinder air pressure is accessed into supercharging pumping hole by flexible pipe；
3）By three phase mains access electric box relevant position；
4）Close stop valve and relief valve；Stop valve can also be opened, allows pressure to be sent on operating platform；
5）There is individual remote control button box on the operational platform；
6）Electric switch button is opened, stop button indicator lamp lights, and shows that power work is normal；
7）Start button, electric motor starting, supercharging start；Reversal valve commutates back and forth, promotes booster pump supercharging；
8）Stop button, motor stop, and booster pump stops supercharging；
9）Electro connecting pressure gauge is arranged to 35MPa before dispatching from the factory, after booster pump is pressurized to 35MPa, electro connecting pressure gauge is sent out
Stop signal, motor stop, and booster pump stops supercharging.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model, therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (9)
- A kind of 1. aerodynamic device for accurately controlling pressure, it is characterised in that：Including the gas cylinder being sequentially connected（1）, supercharging Pump（2）, middle pressure cutoff valve（3）, filter（4）, pressure-reducing valve（5）, high-pressure stop valve（6）And pressure port（7）, booster pump（2）Even Connect middle pressure cutoff valve（3）Between be connected with electro connecting pressure gauge on pipeline（8）, middle pressure relief valve（9）, middle pressurized overflow valve（10）And height Press air accumulator（11）, pressure-reducing valve（5）And filter（4）Between middle pressure table is installed on connecting pipe（12）, high-pressure stop valve（6）With Pressure port（7）Between be connected with gas high pressure pressurized cylinder on pipeline（13）, high pressure gauge（14）And high-pressure decompression valve（15）.
- A kind of 2. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：Booster pump （2）Pass through reversal valve（16）It is connected to electrodynamic pump（17）, electrodynamic pump（17）It is connected to fuel tank（18）.
- A kind of 3. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：Middle pressure cut-off Valve（3）And filter（4）Between pass through high pressure line（19）Connection.
- A kind of 4. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：Reversal valve （16）, electrodynamic pump（17）And electro connecting pressure gauge（8）ATS controllers are connected to, ATS controllers are connected to remote-control handle（20）.
- A kind of 5. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：Middle pressurized overflow Valve（10）And high pressure tank（11）It is connected to by four-way connection on pipeline.
- A kind of 6. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：Electric contact pressure Power table（8）With middle pressure relief valve（9）It is connected to by four-way connection on pipeline.
- A kind of 7. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：Middle pressure table （12）It is connected to by three-way connection on pipeline.
- A kind of 8. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：Gas high pressure Pressurized cylinder（13）Set multiple, be connected to respectively by three-way connection on pipeline.
- A kind of 9. aerodynamic device for accurately controlling pressure according to claim 1, it is characterised in that：High pressure gauge （14）And high-pressure decompression valve（15）It is connected to by four-way connection on pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720635009.9U CN206801988U (en) | 2017-06-02 | 2017-06-02 | A kind of aerodynamic device for accurately controlling pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720635009.9U CN206801988U (en) | 2017-06-02 | 2017-06-02 | A kind of aerodynamic device for accurately controlling pressure |
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| Publication Number | Publication Date |
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| CN206801988U true CN206801988U (en) | 2017-12-26 |
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ID=60744631
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720635009.9U Active CN206801988U (en) | 2017-06-02 | 2017-06-02 | A kind of aerodynamic device for accurately controlling pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114185380A (en) * | 2021-12-08 | 2022-03-15 | 江苏宝碟自动化设备有限公司 | Gas pressure flow control system and method for producing ultrathin-wall pipe |
-
2017
- 2017-06-02 CN CN201720635009.9U patent/CN206801988U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114185380A (en) * | 2021-12-08 | 2022-03-15 | 江苏宝碟自动化设备有限公司 | Gas pressure flow control system and method for producing ultrathin-wall pipe |
| CN114185380B (en) * | 2021-12-08 | 2022-07-29 | 江苏宝碟自动化设备有限公司 | Gas pressure flow control system and method for producing ultrathin-wall pipe |
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