CN111022735A - TPS is experimental with quick voltage regulator device of large-traffic gas - Google Patents
TPS is experimental with quick voltage regulator device of large-traffic gas Download PDFInfo
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- CN111022735A CN111022735A CN201911307156.3A CN201911307156A CN111022735A CN 111022735 A CN111022735 A CN 111022735A CN 201911307156 A CN201911307156 A CN 201911307156A CN 111022735 A CN111022735 A CN 111022735A
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- valve
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- buffer tank
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- gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
- G01M9/065—Measuring arrangements specially adapted for aerodynamic testing dealing with flow
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention relates to a high-flow gas rapid pressure stabilizing device for a TPS test, in particular to the field of energy dissipaters. The system comprises an industrial personal computer, a quick adjusting valve, a buffer tank and a high-pressure gas source pipeline; the outlet of the rapid regulating valve is connected with a gas using device, the inlet of the rapid regulating valve is connected with the buffer tank, pressure sensors are respectively arranged at the inlet of the rapid regulating valve and the buffer tank, the buffer tank is connected with a high-pressure gas source pipeline through a connecting pipeline, and the high-pressure gas source pipeline is connected with a gas source; the industrial personal computer is respectively connected with the quick adjusting valve and the pressure sensor, is used for obtaining a field signal according to the pressure sensor, and is also used for obtaining valve opening information according to the field signal and controlling the opening of the quick adjusting valve according to the valve opening information. The technical problem of how to realize stable and rapid control of the air pressure during the large-flow gas utilization test is solved, and the air pressure control method is suitable for stable control of the air pressure.
Description
Technical Field
The invention relates to the field of energy dissipaters, in particular to a high-flow gas rapid pressure stabilizing device for a TPS test.
Background
In the field of special experimental aerodynamics, particularly TPS (thermoplastic elastomer) tests, a high-pressure air supply system is required, the air supply flow is required to be large (not less than 6kg/s), the pressure control precision is high, and the adjustment response time is short. The flow control is generally controlled by a digital valve based on venturi tube combination, the control precision of the digital valve depends on the area distribution of the throat, and the flow output stability and the manufacturing cost of the digital valve are influenced by the pressure stability and the pressure grade of the airflow in the inlet pipeline. The higher the pressure bearing of the digital valve, the higher the manufacturing cost; under the same control precision requirement, the higher the pressure at the front end of the digital valve is, the smaller the minimum throat processing size is, and the greater the processing difficulty is; the pressure fluctuation at the front end of the digital valve causes the electromagnetic valve to frequently act during the flow control of the digital valve, and the service life of the digital valve is influenced. During special tests, especially under the working condition of large-flow gas utilization, the requirement for quickly and stably controlling the pressure at the front end of the digital valve cannot be met by using a common pressure reducing valve.
Disclosure of Invention
The invention aims to solve the technical problem of how to realize stable and rapid control of the air flow pressure during a large-flow air consumption test.
The technical scheme for solving the technical problems is as follows: the utility model provides a TPS is experimental with quick voltage regulator device of large-traffic gas, includes: the system comprises an industrial personal computer, a quick regulating valve, a buffer tank and a high-pressure gas source pipeline;
the outlet of the rapid regulating valve is connected with a gas using device, the inlet of the rapid regulating valve is connected with the buffer tank, pressure sensors are respectively arranged at the inlet of the rapid regulating valve and the buffer tank, the buffer tank is connected with a high-pressure gas source pipeline through a connecting pipeline, and the high-pressure gas source pipeline is connected with a gas source;
the industrial personal computer is respectively connected with the quick adjusting valve and the pressure sensor, is used for obtaining a field signal according to the pressure sensor, and is also used for obtaining valve opening information according to the field signal and controlling the opening of the quick adjusting valve according to the valve opening information.
The invention has the beneficial effects that: through controlling quick adjustment valve aperture, realize front and back end pipeline gas pressure accurate control, use the buffer tank to be used for behind the valve gas pressure stable, the buffer tank is used for the governing valve during operation to stabilize the pressure of export, the pressure fluctuation in the buffer tank when this buffer tank can effectively eliminate quick adjustment valve action as the gas capacity device, provides stable air supply pressure for quick adjustment valve work, avoids quick adjustment valve to influence its life because of the frequent action of entry pressure fluctuation.
The governing valve during operation is in two kinds of operating condition according to its front and back end pressure ratio difference: blocked flow and non-blocked flow. When the valve is in a non-blocking flow state, the flow coefficient of the regulating valve is related to the opening degree of the valve, the gas flow and the pressures of the front end and the rear end of the valve, and after the working flow, the pressure and the pressure difference of the front end and the rear end of the valve are selected, the flow coefficient of the valve under the working condition can be calculated. According to the relationship between the valve opening of the linear regulating valve and the flow coefficient, the expected opening of the high-pressure regulating valve can be calculated.
During actual work, the industrial personal computer calculates the expected opening of the high-pressure regulating valve in real time according to field pressure feedback, pressure and flow setting and the flow coefficient of the current regulating valve, outputs a valve position through a preset variable parameter control algorithm, and corrects the output in real time according to the pressure feedback, so that the pressure control effect is achieved.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, safety valves are arranged at the inlet of the quick adjusting valve and on the buffer tank.
The safety valve is opened or closed according to the set pressure and is used for relieving pressure of an inlet pipeline of the pressure reducing valve when the high-pressure gas source is over-regulated; the pressure relief valve is used for pressure relief of an inlet pipeline of the digital valve under the condition of a pressure relief valve or a digital valve fault, and the pressure safety of downstream equipment can be effectively protected by reasonably setting the take-off pressure of the safety valve.
Further, quick adjustment valve includes connecting tube, V type valve core governing valve, valve positioner, pneumatic driver and drive air supply, V type valve core governing valve passes through connecting tube with the buffer tank is connected, pneumatic driver with V type valve core governing valve is connected, the valve positioner with the drive air supply all with pneumatic driver connects.
Adopt above-mentioned further scheme's beneficial effect is, push-and-pull governing valve case is in order to control case real-time position from top to bottom through controlling pneumatic driver fast action, after setting up the valve locator, can balance cylinder pressure in order to control pneumatic driver and cylinder position, the drive air supply is used for providing the middling pressure air supply to this device, governing valve case structure is the V style of calligraphy, its valve aperture is the linear relation with flow characteristic position, the regulation blind spot of this valve is little, working range is wide, air feed pressure adjusts when specially adapted is large-traffic.
Further, the industrial personal computer calculates the opening degree of the valve in real time through a variable parameter PID control algorithm and outputs the opening degree to the valve positioner.
The further scheme has the advantages that the parameter values of the PID controller can be automatically set according to the difference value between the set value and the feedback value through the variable parameter PID control algorithm, the rapid temperature setting of the valve opening is realized, and the control oscillation in the adjustment is avoided.
Further, the bottom of buffer tank is equipped with the support.
Adopt above-mentioned further scheme's beneficial effect be, can increase the reliability that equipment is connected after the buffer tank bottom sets up the support.
Furthermore, a gas guide pipe is preset on the top of the buffer tank, an annular damping ring is arranged on the gas guide pipe, and the pressure sensor is connected with the gas guide pipe.
The beneficial effect of adopting above-mentioned further scheme is that after setting up like this, can avoid the pressure oscillation, increase the stability of pressure sensor data.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a system of an embodiment of a high-flow gas rapid pressure stabilizing device for a TPS test according to the present invention;
FIG. 2 is a sectional view of a valve core structure of another embodiment of the high flow gas rapid pressure stabilizing device for TPS test of the present invention;
fig. 3 is a schematic structural diagram of a valve core of another embodiment of the high-flow gas rapid pressure stabilizing device for the TPS test of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The embodiment is basically as shown in the attached figure 1:
the experimental quick voltage regulator device of large-traffic gas that uses of TPS in this embodiment includes: the system comprises an industrial personal computer 1, a quick regulating valve, a buffer tank 7 and a high-pressure gas source pipeline;
the outlet of the rapid regulating valve is connected with a gas using device, the inlet of the rapid regulating valve is connected with a buffer tank 7, the inlet of the rapid regulating valve and the buffer tank 7 are respectively provided with a pressure sensor 6, the buffer tank 7 is connected with a high-pressure gas source pipeline through a connecting pipeline 9, and the high-pressure gas source pipeline is connected with a gas source;
industrial computer 1 is connected with quick adjustment valve and pressure sensor 6 respectively, and industrial computer 1 is used for obtaining the on-the-spot signal according to pressure sensor 6, and industrial computer 1 still is used for deriving valve opening information according to the on-the-spot signal to according to the opening of valve opening information control quick adjustment valve, industrial computer 1 in this embodiment can be IPC-510 industrial computer, and pressure sensor 6 can be PT124G-123 sensor.
The invention has the beneficial effects that: through controlling quick adjustment valve aperture, realize front and back end pipeline gas pressure accurate control, it is stable to use buffer tank 7 to be used for gas pressure behind the valve, buffer tank 7 is used for the governing valve during operation to stabilize the pressure of export, the pressure fluctuation in buffer tank 7 when this buffer tank 7 can effectively eliminate the quick adjustment valve action as the gas capacity device, for quick adjustment valve work provides stable air supply pressure, avoid quick adjustment valve to influence its life because of the frequent action of entry pressure fluctuation.
The governing valve during operation is in two kinds of operating condition according to its front and back end pressure ratio difference: blocked flow and non-blocked flow. When the valve is in a non-blocking flow state, the flow coefficient of the regulating valve is related to the opening degree of the valve, the gas flow and the pressures of the front end and the rear end of the valve, and after the working flow, the pressure and the pressure difference of the front end and the rear end of the valve are selected, the flow coefficient of the valve under the working condition can be calculated. According to the relationship between the valve opening of the linear regulating valve and the flow coefficient, the expected opening of the high-pressure regulating valve can be calculated.
During actual work, the industrial personal computer 1 calculates the expected opening of the high-pressure regulating valve in real time according to field pressure feedback, pressure and flow setting and the flow coefficient of the current regulating valve, outputs a valve position through a preset variable parameter control algorithm, and corrects the output in real time according to the pressure feedback, so that the pressure control effect is achieved.
On the basis of the technical scheme, the invention can be further improved as follows.
Optionally, in some other embodiments, a safety valve 8 is provided at both the inlet of the quick-acting valve and the buffer tank 7.
The safety valve 8 is opened or closed according to the setting pressure of the safety valve and is used for relieving the pressure of an inlet pipeline of the pressure reducing valve when the high-pressure gas source is over-regulated; the pressure relief valve is used for pressure relief of an inlet pipeline of the digital valve under the condition of a pressure relief valve or a digital valve fault, and the pressure of downstream equipment can be effectively protected by reasonably setting the take-off pressure of the safety valve 8.
As shown in fig. 2 and fig. 3, optionally, in some other embodiments, the quick-acting regulating valve includes a connecting pipe 9, a V-shaped valve core regulating valve 2, a valve positioner 3, a pneumatic driver 4 and a driving air source, the V-shaped valve core regulating valve 2 is connected with a buffer tank 7 through the connecting pipe 9, the pneumatic driver 4 is connected with the V-shaped valve core regulating valve 2, and the valve positioner 3 and the driving air source are both connected with the pneumatic driver 4.
Push-and-pull governing valve case is with control case real-time position from top to bottom through controlling pneumatic driver 4 fast action, set up behind the valve locator 3, can balance cylinder pressure in order to control pneumatic driver 4 and cylinder position, the drive air supply is used for providing middling pressure air supply 5 to this device, governing valve case structure is the V style of calligraphy, its valve aperture is linear relation with flow characteristic position, the regulation blind spot of this valve is little, working range is wide, air feed pressure adjusts when specially adapted is large-traffic.
Optionally, in some other embodiments, the industrial personal computer 1 calculates the valve opening in real time through a variable parameter PID control algorithm and outputs the valve opening to the valve positioner 3, and the valve positioner 3 is used for changing the opening of the V-shaped valve core regulating valve 2.
The parameter values of the PID controller can be automatically set according to the difference value between the set value and the feedback value through a variable parameter PID control algorithm, and the parameters in the embodiment comprise temperature, pressure, liquid level and flow, so that the rapid temperature setting of the valve opening is realized, and the control oscillation in the adjustment process is avoided.
Optionally, in some other embodiments, the bottom of the buffer tank 7 is provided with a support, the support in this embodiment includes a steel rectangular frame, the top surface of the rectangular frame is provided with a buffer rubber, the bottom of the buffer rubber is provided with an elastic object contacting with the ground, and the elastic object may be a spring.
The reliability of equipment connection can be increased after the support is arranged at the bottom of the buffer tank 7.
Optionally, in some other embodiments, a bleed air pipe is preset on the top of the buffer tank 7, the bleed air pipe is provided with an annular damping ring, and the pressure sensor 6 is connected with the bleed air pipe.
Thus, the pressure fluctuation can be avoided, and the stability of the data of the pressure sensor 6 is improved.
It should be noted that the above embodiments are product embodiments corresponding to the above method embodiments, and for the description of each structural device and the optional implementation in this embodiment, reference may be made to the corresponding description in the above method embodiments, and details are not repeated herein.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a TPS is experimental with quick voltage regulator device of large-traffic gas which characterized in that includes:
the system comprises an industrial personal computer, a quick regulating valve, a buffer tank and a high-pressure gas source pipeline;
the outlet of the rapid regulating valve is connected with a gas using device, the inlet of the rapid regulating valve is connected with the buffer tank, pressure sensors are respectively arranged at the inlet of the rapid regulating valve and the buffer tank, the buffer tank is connected with a high-pressure gas source pipeline through a connecting pipeline, and the high-pressure gas source pipeline is connected with a gas source;
the industrial personal computer is respectively connected with the quick adjusting valve and the pressure sensor, is used for obtaining a field signal according to the pressure sensor, and is also used for obtaining valve opening information according to the field signal and controlling the opening of the quick adjusting valve according to the valve opening information.
2. The TPS test high-flow gas rapid pressure stabilizing device according to claim 1, characterized in that: and safety valves are arranged at the inlet of the quick adjusting valve and on the buffer tank.
3. The TPS test high-flow gas rapid pressure stabilizing device according to claim 1, characterized in that: quick-adjustment valve includes connecting tube, V type valve core governing valve, valve positioner, pneumatic driver and drive air supply, V type valve core governing valve passes through connecting tube with the buffer tank is connected, pneumatic driver with V type valve core governing valve is connected, the valve positioner with the drive air supply all with pneumatic driver connects.
4. The TPS test high-flow gas rapid pressure stabilizing device according to claim 3, characterized in that: and the industrial personal computer calculates the valve opening in real time through a variable parameter PID control algorithm and outputs the valve opening to the valve positioner.
5. The TPS test high-flow gas rapid pressure stabilizing device according to claim 1, characterized in that: and a support is arranged at the bottom of the buffer tank.
6. The TPS test high-flow gas rapid pressure stabilizing device according to claim 1, characterized in that: the top of the buffer tank is preset with an air entraining pipe, the air entraining pipe is provided with an annular damping ring, and the pressure sensor is connected with the air entraining pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307156.3A CN111022735A (en) | 2019-12-18 | 2019-12-18 | TPS is experimental with quick voltage regulator device of large-traffic gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307156.3A CN111022735A (en) | 2019-12-18 | 2019-12-18 | TPS is experimental with quick voltage regulator device of large-traffic gas |
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| CN111022735A true CN111022735A (en) | 2020-04-17 |
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| CN201911307156.3A Pending CN111022735A (en) | 2019-12-18 | 2019-12-18 | TPS is experimental with quick voltage regulator device of large-traffic gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251192A (en) * | 2021-06-08 | 2021-08-13 | 中国空气动力研究与发展中心低速空气动力研究所 | Digital valve control system and control method by considering valve response time |
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| CN207454431U (en) * | 2017-11-09 | 2018-06-05 | 成都铭峰新源科技有限公司 | A kind of gas pressure flow control valve group |
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| CN1129480A (en) * | 1993-08-25 | 1996-08-21 | 罗斯蒙德公司 | Valve positioner with pressure feedback dynamic correction and diagnositic |
| CN1271410A (en) * | 1997-09-22 | 2000-10-25 | 费希尔控制产品国际公司 | Diagnostic device and method for pressure regulator |
| DE19932743C2 (en) * | 1999-07-14 | 2003-10-09 | Thomas Scholzen | Control valve system with pneumatic actuator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251192A (en) * | 2021-06-08 | 2021-08-13 | 中国空气动力研究与发展中心低速空气动力研究所 | Digital valve control system and control method by considering valve response time |
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