CN202735858U - Superhigh pressure curve control system - Google Patents
Superhigh pressure curve control system Download PDFInfo
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- CN202735858U CN202735858U CN 201220273478 CN201220273478U CN202735858U CN 202735858 U CN202735858 U CN 202735858U CN 201220273478 CN201220273478 CN 201220273478 CN 201220273478 U CN201220273478 U CN 201220273478U CN 202735858 U CN202735858 U CN 202735858U
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- pressure
- high voltage
- uhv
- ultra
- control system
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Abstract
The utility model relates to a superhigh pressure curve control system, the superhigh pressure curve control system comprises a high accuracy superhigh pressure relief valve, and the high accuracy superhigh pressure relief valve comprises the relief valve and a pneumatic executive component used for controlling on and off of the relief valve. The superhigh pressure curve control system is employed to be under conditions that volume of superhigh pressure fluid is more than 100L, fluid pressure is under 200Mpa, and temperature is above 100 DEG C, according to a preset curve, accuracy is controlled to be within 1% F.S., and smooth transition of a pressure relief process to the fluid pressure is realized according to the preset curve.
Description
Technical field
The utility model relates to the pressure control field, is specifically related to UHV (ultra-high voltage) pressure curve control system.
Background technology
The ultimate principle of superhigh pressure technique is Pascal law and principle, that product is sealed in elastic container or places pressure system, Chang Yishui or other fluids are as the medium of transmission of pressure, under UHV (ultra-high voltage) (greater than 100MPa) and certain temperature acting in conjunction, process reasonable time, last release, the process of taking out product.In stress-relief process, effectively discharge by design process for making the product internal stress, thereby requirement is to the accurate control of its pressure.
In the UHV (ultra-high voltage) pressing process, actuating medium oil viscosity, throttle orifice flow, temperature, workpiece volume all change with pressure, general performance is nonlinear characteristic, thereby directly cause the design of control mathematical model and pressure control law complicated, cause to be difficult to realize that pressure is by the accurate control of predetermined curve.
The utility model content
The utility model purpose is for the deficiencies in the prior art, and a kind of UHV (ultra-high voltage) pressure curve control system is provided.
UHV (ultra-high voltage) pressure curve control system, described UHV (ultra-high voltage) pressure curve control system comprises high precision UHV (ultra-high voltage) pressure-release valve, described high precision UHV (ultra-high voltage) pressure-release valve consists of by pressure-release valve with for the pneumatic execution unit of controlling the pressure-release valve keying.
Further technical scheme is, described pressure-release valve comprises spool, valve seat and valve gap, and described spool is between described valve gap and described valve seat.
Further technical scheme is, described pneumatic execution unit is controlled the keying of described pressure-release valve spool by connecting rod, between described connecting rod and the described valve gap by packing seal.
Further technical scheme is on the described pneumatic execution unit switch direction board to be arranged.
Further technical scheme is, described UHV (ultra-high voltage) pressure curve control system also comprises extra high voltage system, data acquisition system (DAS), control system, described data acquisition system (DAS) gathers the pressure in the described extra high voltage system, and described control system is controlled described high precision UHV (ultra-high voltage) pressure-release valve by data acquisition system (DAS) information.
Further technical scheme is, described data acquisition system (DAS) has the high precision extra-high tension pressure sensor.
Further technical scheme is, described data acquisition system (DAS) has two groups at least.
Further technical scheme is, described extra high voltage system comprises extremely-high tension generator and ultrahigh pressure vessel.
Further technical scheme is again, and the material of described ultrahigh pressure vessel is the 34CrNi3MoV steel.
The beneficial effects of the utility model are:
(1) the utility model is in extra high voltage system, and extremely-high tension generator can be amplified to 200MPa with the normal pressure fluid; The UHV (ultra-high voltage) pressure vessel adopts the Steel material manufacturing, prevents container and pipeline leakage in the use procedure, thereby improves control accuracy, has adopted reliable connection and hermetically-sealed construction, guarantees container pressure.
(2) the utility model adopts the high precision extra-high tension pressure sensor that the pressure in the ultrahigh pressure vessel is carried out Real-time Collection, by input control system after the A/D modular converter image data of PLC, designed independently data acquisition system (DAS) of at least two groups in the container, but the guarantee information collection is reliable.
(3) control system of the present utility model is to realize the accurately critical system of control of hyperpressure, jointly consisted of by computing machine and PLC, collaborative work, computing machine is as calculating and the processing terminal of control algolithm, requirement according to control algolithm, real time data to the collection of pressure control procedure is analyzed, calculates, is processed, and generates control signal, realizes in real time accurately control of pressure by PLC.
Control algolithm is to be integrated in the computer control software, adopts self-adaptation, PID and fuzzy neural network equal pressure control composite algorism, and the process control of will boosting respectively, pressure maintaining period control, the control of UHV (ultra-high voltage) transfer pressure and low pressure control are carried out compound.
(4) the utility model based on to UHV (ultra-high voltage) decompression rate regulation mechanism and actuating medium oil viscosity, throttle orifice flow, workpiece volume all with analysis and the research of pressure variation etc., by the UHV (ultra-high voltage) pressure-release valve is designed, and the mode that adopts the compressed air control valve core to open and close, realize the adjustable continuously of stress-relief process; By to pressure-release valve valve core structure design, reduce under the UHV (ultra-high voltage) depressurization phase the impact of spool and wash away, improve control accuracy and the mission life of gas control pressure-release valve.
(5) the utility model is more than super high pressure fluid volume 100L, and below the hydrodynamic pressure 200MPa, under the condition of temperature more than 100 ℃, according to predetermined curve, control accuracy is in 1%F.S..
(6) the utility model can realize that the stress-relief process fluid pressure seamlessly transits by predetermined curve.
Description of drawings
Fig. 1 is UHV (ultra-high voltage) pressure curve composition of the control system block diagram.
Fig. 2 is high precision UHV (ultra-high voltage) pressure-release valve structural representation.
Fig. 3 is the structure enlarged diagram of spool.
Embodiment
Below in conjunction with embodiment the utility model is further described in detail, but be not to restriction of the present utility model.
Embodiment
UHV (ultra-high voltage) pressure curve control system, described UHV (ultra-high voltage) pressure curve control system comprises high precision UHV (ultra-high voltage) pressure-release valve, described high precision UHV (ultra-high voltage) pressure-release valve consists of by pressure-release valve with for the pneumatic execution unit 1 of controlling the pressure-release valve keying, described pressure-release valve comprises spool 2, valve seat 3 and valve gap 4, described spool 2 is between described valve gap 4 and described valve seat 3, described pneumatic execution unit 1 is by the keying of the described pressure-release valve spool 2 of connecting rod 5 controls, by filler 6 sealings, on the described pneumatic execution unit 1 switch direction board 7 is arranged between described connecting rod 5 and the described valve gap 4.
Described UHV (ultra-high voltage) pressure curve control system also comprises extra high voltage system, data acquisition system (DAS), control system, described data acquisition system (DAS) gathers the pressure in the described extra high voltage system, and described control system is controlled described high precision UHV (ultra-high voltage) pressure-release valve by data acquisition system (DAS) information.
Described data acquisition system (DAS) has the high precision extra-high tension pressure sensor, and described data acquisition system (DAS) has two groups at least, and described extra high voltage system comprises extremely-high tension generator and ultrahigh pressure vessel, and the material of described ultrahigh pressure vessel is the 34CrNi3MoV steel.
Although with reference to explanatory embodiment of the present utility model the utility model is described here, but, should be appreciated that those skilled in the art can design a lot of other modification and embodiments, these are revised and embodiment will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. UHV (ultra-high voltage) pressure curve control system, it is characterized in that: described UHV (ultra-high voltage) pressure curve control system comprises high precision UHV (ultra-high voltage) pressure-release valve, and described high precision UHV (ultra-high voltage) pressure-release valve is by pressure-release valve and be used for pneumatic execution unit (1) formation that the control pressure-release valve opens and closes.
2. UHV (ultra-high voltage) pressure curve control system according to claim 1, it is characterized in that: described pressure-release valve comprises spool (2), valve seat (3) and valve gap (4), described spool (2) is between described valve gap (4) and described valve seat (3).
3. UHV (ultra-high voltage) pressure curve control system according to claim 2, it is characterized in that: described pneumatic execution unit (1) seals by filler (6) between described connecting rod (5) and the described valve gap (4) by the keying of connecting rod (5) the described pressure-release valve spool of control (2).
4. UHV (ultra-high voltage) pressure curve control system according to claim 3 is characterized in that: switch direction board (7) is arranged on the described pneumatic execution unit (1).
5. the described UHV (ultra-high voltage) pressure curve of any one control system in 4 according to claim 1, it is characterized in that: described UHV (ultra-high voltage) pressure curve control system also comprises extra high voltage system, data acquisition system (DAS), control system, described data acquisition system (DAS) gathers the pressure in the described extra high voltage system, and described control system is controlled described high precision UHV (ultra-high voltage) pressure-release valve by data acquisition system (DAS) information.
6. UHV (ultra-high voltage) pressure curve control system according to claim 5, it is characterized in that: described data acquisition system (DAS) has the high precision extra-high tension pressure sensor.
7. UHV (ultra-high voltage) pressure curve control system according to claim 5, it is characterized in that: described data acquisition system (DAS) has two groups at least.
8. UHV (ultra-high voltage) pressure curve control system according to claim 5, it is characterized in that: described extra high voltage system comprises extremely-high tension generator and ultrahigh pressure vessel.
9. UHV (ultra-high voltage) pressure curve control system according to claim 8, it is characterized in that: the material of described ultrahigh pressure vessel is the 34CrNi3MoV steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273478 CN202735858U (en) | 2012-06-11 | 2012-06-11 | Superhigh pressure curve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220273478 CN202735858U (en) | 2012-06-11 | 2012-06-11 | Superhigh pressure curve control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202735858U true CN202735858U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220273478 Expired - Lifetime CN202735858U (en) | 2012-06-11 | 2012-06-11 | Superhigh pressure curve control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202735858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838978A (en) * | 2014-03-25 | 2014-06-04 | 中国工程物理研究院化工材料研究所 | Method for controlling pressure according to time segmenting curves |
| CN104373663A (en) * | 2014-10-24 | 2015-02-25 | 中国工程物理研究院化工材料研究所 | Ultrahigh-pressure pressure relief valve |
-
2012
- 2012-06-11 CN CN 201220273478 patent/CN202735858U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103838978A (en) * | 2014-03-25 | 2014-06-04 | 中国工程物理研究院化工材料研究所 | Method for controlling pressure according to time segmenting curves |
| CN104373663A (en) * | 2014-10-24 | 2015-02-25 | 中国工程物理研究院化工材料研究所 | Ultrahigh-pressure pressure relief valve |
| CN104373663B (en) * | 2014-10-24 | 2016-08-17 | 中国工程物理研究院化工材料研究所 | Supertension pressure-relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |