CN102135778A - Gas pressure regulator and gas pressure regulation method - Google Patents
Gas pressure regulator and gas pressure regulation method Download PDFInfo
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- CN102135778A CN102135778A CN 201010566408 CN201010566408A CN102135778A CN 102135778 A CN102135778 A CN 102135778A CN 201010566408 CN201010566408 CN 201010566408 CN 201010566408 A CN201010566408 A CN 201010566408A CN 102135778 A CN102135778 A CN 102135778A
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Abstract
The invention belongs to a static pressure measurement calibration instrument, and in particular relates to a gas pressure regulator which is designed by a new principle, and a gas pressure regulation method. The gas pressure regulator comprises a regulator main body, a transmission part, a piston assembly, a combination valve and a sealing piece. In the invention, mass regulation and capacity regulation are combined with each other, and the advantages of a mass gas pressure regulation method and a capacity gas pressure regulation method are combined together, so that higher control speed and higher control accuracy can be realized by pressure regulation from a low range to a high range. The method comprises the following steps of: coarsely regulating a target pressure value in a mass gas pressure regulation mode and finely regulating the target pressure value in a capacity gas pressure regulation mode, namely increasing or reducing the mass of gas simultaneously for a front cavity and a rear cavity of the pressure regulator through the combination valve so as to make the target pressure value of the regulator coarsely realized; and driving a piston on a nut actuator to move back and forth in a main body cavity through a levorotatory guide screw rod and finely regulating to acquire the target pressure value.
Description
Technical field
The invention belongs to static pressure measurement and calibration instrument, be specifically related to a kind of gas regulator and control method thereof of using the new principle design.
Technical background
At present, widely used pressure measurement calibration instrument mainly contains two kinds of piston manometer and pressure controllers.
Piston manometer is a foundation development with hydrostatic equilibrium principle and Pascal law, it has the accuracy height and long-time stability wait outstanding advantage well, and the nearly all high-level calibration laboratory in the whole world all is as pressure measurement benchmark utensil with piston gage.But because piston gage principle and structural reason, it is big to cause it to have labour intensity, inefficiency, portable performance is poor, can only produce discrete deficiencies such as spot pressure, determine it to be suitable as the metrological standard unit of using in the laboratory, and be not suitable for use in the field calibration device.
Pressure controller is the product that sensing technology, computer technology and control technology combine, essence is by the control of source of the gas fast, accurately, stably being produced the goal pressure of user's appointment, can show by measuring pressure by real-time digital again simultaneously, it is simple to operate, volume is little, in light weight, is convenient to carry out field calibration.
The gaseous tension control method is the core technology of pressure controller, mainly contains two kinds of control methods of quality and capacity.
The regulator that the quality adjustment method is adopted generally is the closed container cavity of a fixing single volume, realize control by the quality that increases or reduce gas in the closed container to gaseous tension, this control mode measurement range is wide, but difficulty is bigger in the control of pressure fine setting, fill, temperature variation is bigger in the deflation course, is not easy to reach balance.
The regulator that capacity regulation method adopted generally is made up of a cavity volume and a piston, mainly be to move the volume that changes gas by piston to realize control to gaseous tension, it is fast to have control rate in the control of a small amount of stroke pressure, the advantage that accuracy is high, but this control mode is had relatively high expectations to mechanical dynamic seal, regulating under the high pressure situation needs work many, so scope is restricted.
Summary of the invention
The control difficulty is big in fine setting, temperature influence is big to the objective of the invention is to solve the mass gas pressure regulating method, capacity gaseous tension control method needs too much mechanical energy, motive seal to require problems such as height when wide range pressure is regulated, and the gas regulator and the control method thereof of the quality capacity combination that a kind of control rate is fast, control accuracy is high is provided.
Technical solution of the present invention is: gas regulator comprises regulator body, drive disk assembly, piston component, combination valve and seal five parts, and the regulator body top is provided with end cap, and limited step place in middle part is provided with; Piston cylinder places the chamber of regulator body, piston is positioned at piston cylinder, the nut actuator is connected with piston, lead screw one end is connected with the nut actuator, the lead screw other end is provided with limited step, and plain thrust bearing, bearing shim and shield ring sleeve are connected on the lead screw lead screw is fixed on the regulator body; Regulator body has two pores corresponding to the front/back cavity extreme position of piston, connects by combination valve between two pores, and combination valve is connected with regulator body; The front/back cavity of the piston on the regulator body is provided with motive seal O type circle, the outer tip end of piston cylinder is provided with the O RunddichtringO, the front/back cavity extreme position of regulator body top end cap and piston has two pore places and is equipped with the O RunddichtringO, and lead screw is provided with the combination motive seal of O type circle and nylon washer composition.
Described combination valve is made up of three valves of interrupt switch valve of the front/back cavity of the piston on gas-filled switching tube valve, air escape cock valve and the switching regulator body.
Described lead screw is left-handed lead screw.
The gaseous tension control method is one of following,
(1) the current pressure value is less than target pressure value
At first, source of the gas adjusted to be higher than required adjusting upper limit of pressure, open the gas-filled switching tube valve and the interrupt switch valve of combination valve, source of the gas gas enters into ante-chamber, the back cavity of the piston on the regulator body by regulator body corresponding to two pores of the front/back cavity extreme position of piston simultaneously, make ante-chamber, back cavity pressure simultaneously rough reach target pressure value;
Secondly, close gas-filled switching tube valve, the interrupt switch valve of combination valve, be fixed on the piston that the lead screw on the regulator body drives on the nut actuator by rotation and move forward and backward in piston cylinder, the preceding cavity pressure of the piston on the trimming regulator main body makes it reach target pressure value;
(2) the current pressure value is greater than target pressure value
At first, open air escape cock valve, the interrupt switch valve of combination valve, gas enters atmosphere by regulator body corresponding to two pores of the front/back cavity extreme position of piston simultaneously in the ante-chamber of the piston on the regulator body, back cavity, make regulator body on ante-chamber, the back cavity pressure of piston simultaneously rough reach target pressure value;
Secondly, close air escape cock valve, interrupt switch valve, be fixed on the piston that the lead screw on the regulator body drives on the nut actuator by rotation and move forward and backward in piston cylinder, the preceding cavity pressure of the piston on the trimming regulator main body makes it reach target pressure value.
Advantage that the present invention has and beneficial effect, the present invention combines quality adjustment and capacity regulating, its advantages with two kinds of gaseous tension control methods of quality and capacity is in the same place, and pressure is regulated can both be realized control rate and higher control accuracy faster from the lower range to the high range.The present invention realizes the fine setting of target pressure value by the coarse adjustment of mass gas pressure regulative mode realization target pressure value by capacity gaseous tension regulative mode.Promptly at first increase or reduce the quality of gas simultaneously to the front/back cavity of pressure governor by combination valve, make its rough target pressure value that reaches, the piston that drives on the nut actuator by left-handed lead screw moves forward and backward in main cavity then, is fine-tuning to target pressure value.
The coarse adjustment of this quality capacity pressure regulative mode realizes by quality adjustment, therefore obtains the pressure range of adjustment of broad easily, has avoided mass pressure to be adjusted in fine setting and has gone up the big deficiency of control difficulty; Fine setting realizes by capacity regulating, because the pressure reduction in chamber, front and back is the force value of fine setting just, therefore only need a simple O RunddichtringO just can realize sealing, and mobile piston needs work also seldom, avoided capacity regulating in the pressure controlled deficiency of wide region.
This quality capacity pressure controller structure is simple, easy to use, effectively combines the advantage of quality and two kinds of gaseous tension control methods of capacity, has remedied deficiency mutually, and wide-range, pin-point accuracy pressure are adjusted to for possibility.
Description of drawings
Fig. 1 is a principle of work synoptic diagram of the present invention;
Fig. 2 is a controller structure synoptic diagram of the present invention.
Embodiment
In conjunction with Fig. 1, Fig. 2 the present invention is done following detailed description.
Gas regulator comprises regulator body 9, drive disk assembly, piston component, combination valve and seal five parts, and regulator body 9 tops are provided with end cap 15; Piston cylinder 13 places the chamber of regulator body 9, piston 6 is positioned at piston cylinder 13, nut actuator 11 is connected with piston 6, lead screw 10 1 ends are connected with nut actuator 11, lead screw 10 other ends are provided with limited step, plain thrust bearing 25, bearing shim 26 and shield ring sleeve 27 are socketed on the lead screw 10, and lead screw 10 is fixed on the regulator body 9; Regulator body 9 has between two pores, 22,23, two pores 22,23 corresponding to ante-chamber 5, back cavity 7 extreme position of piston 6 and connects by combination valve 20, and combination valve 20 is connected with regulator body 9; The ante-chamber 5 of the piston 6 on the regulator body 9, back cavity 7 are provided with motive seal O type circle 14, the outer tip end of piston cylinder 13 is provided with O RunddichtringO 17, the ante-chamber 5 of regulator body 9 top end caps 15 and piston 6, back cavity 7 extreme position have two pores, 22,23 places and are equipped with O RunddichtringO 16,21,24, and lead screw 10 is provided with the combination motive seal 25 of O type circle and nylon washer composition.
Described combination valve 20 is made up of the ante-chamber 5 of the piston 6 on gas-filled switching tube valve 2, air escape cock valve 3 and the switching regulator body 9,4 three valves of interrupt switch valve of back cavity 7.
Described lead screw 10 is left-handed lead screw.
Wherein, lead screw 10 is to realize by the limited step on the lead screw 10, plain thrust bearing 25, bearing shim 26 and shield ring sleeve 27 in the fixedly rotation on the regulator body 9; The back cavity 7 of regulator body 9 is to realize by the combination motive seal on the lead screw 10 25 with extraneous sealing; The ante-chamber 5 of regulator body 9, the sealing of back cavity 7 are to realize by the O RunddichtringO on the piston 6 14; Other static seal is realized by O RunddichtringO 16,17,18,21,24.
The gaseous tension control method is one of following,
(1) the current pressure value is less than target pressure value
At first, source of the gas 1 adjusted to be higher than required adjusting upper limit of pressure, open the gas-filled switching tube valve 2 and the interrupt switch valve 3 of combination valve, source of the gas gas enters into ante-chamber 5, the back cavity 7 of the piston on the regulator body 9 by regulator body corresponding to two pores 22,23 of the front/back cavity extreme position of piston 6 simultaneously, make ante-chamber 5, back cavity 7 pressure simultaneously rough reach target pressure value;
Secondly, close gas-filled switching tube valve 2, the interrupt switch valve 4 of combination valve, be fixed on the piston 6 that the lead screw 10 on the regulator body 9 drives on the nut actuators 11 by rotation and move forward and backward in piston cylinder 13, the ante-chamber of the piston on the trimming regulator main body 9 5. pressure makes it reach target pressure value.
(2) the current pressure value is greater than target pressure value
At first, open air escape cock valve 3, the interrupt switch valve 4 of combination valve, gases enter atmosphere 8 by regulator body 9 corresponding to the ante-chamber 5 of piston, two pores 22,23 of back cavity 7 extreme position simultaneously in the ante-chamber 5 of the piston on the regulator body 9, back cavity 7, make ante-chamber 5, back cavity 7 pressure of the piston on the regulator body 9 simultaneously rough reach desired value;
Secondly, close air escape cock valve 3, interrupt switch valve 4, be fixed on the piston 6 that the lead screw 10 on the regulator body 9 drives on the nut actuators 11 by rotation and move forward and backward in piston cylinder 13, ante-chamber 5 pressure of the piston 6 on the trimming regulator main body 9 make it reach target pressure value.
Claims (4)
1. gas regulator, it is characterized in that: gas regulator comprises regulator body, drive disk assembly, piston component, combination valve and seal five parts, and the regulator body top is provided with end cap, and limited step place in middle part is provided with guides; Piston cylinder places the chamber of regulator body, piston is positioned at piston cylinder, the nut actuator is connected with piston, lead screw one end is connected with the nut actuator, the lead screw other end is provided with limited step, and itself and plain thrust bearing, bearing shim and shield ring sleeve are connected on the lead screw lead screw is fixed on the regulator body; Regulator body has two pores corresponding to the front/back cavity extreme position of piston, connects by combination valve between two pores, and combination valve is connected with regulator body; The front/back cavity of the piston on the regulator body is provided with motive seal O type circle, the outer tip end of piston cylinder is provided with the O RunddichtringO, two pore places of the front/back cavity extreme position of regulator body top end cap and piston are equipped with the O RunddichtringO, and lead screw is provided with the combination motive seal of O type circle and nylon washer composition.
2. gas regulator according to claim 1 is characterized in that: described combination valve is made up of three valves of interrupt switch valve of the front/back cavity of the piston on gas-filled switching tube valve, air escape cock valve and the switching regulator body.
3. gas regulator according to claim 1 is characterized in that: described lead screw is left-handed lead screw.
4. a method of utilizing the described gas regulator of claim 1 to carry out air pressure adjustment is characterized in that, the gaseous tension control method is one of following,
(1) the current pressure value is less than target pressure value
At first, source of the gas adjusted to be higher than required adjusting upper limit of pressure, open the gas-filled switching tube valve and the interrupt switch valve of combination valve, source of the gas gas enters into ante-chamber, the back cavity of the piston on the regulator body by regulator body corresponding to two pores of the front/back cavity extreme position of piston simultaneously, make ante-chamber, back cavity pressure simultaneously rough reach target pressure value;
Secondly, close gas-filled switching tube valve, the interrupt switch valve of combination valve, be fixed on the piston that the lead screw on the regulator body drives on the nut actuator by rotation and move forward and backward in piston cylinder, the preceding cavity pressure of the piston on the trimming regulator main body makes it reach target pressure value;
(2) the current pressure value is greater than target pressure value
At first, open air escape cock valve, the interrupt switch valve of combination valve, gas enters atmosphere by regulator body corresponding to two pores of the front/back cavity extreme position of piston simultaneously in the ante-chamber of the piston on the regulator body, back cavity, make regulator body on ante-chamber, the back cavity pressure of piston simultaneously rough reach target pressure value;
Secondly, close air escape cock valve, interrupt switch valve, be fixed on the piston that the lead screw on the regulator body drives on the nut actuator by rotation and move forward and backward in piston cylinder, the preceding cavity pressure of the piston on the trimming regulator main body makes it reach target pressure value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010566408 CN102135778B (en) | 2010-12-01 | 2010-12-01 | Gas pressure regulator and gas pressure regulation method |
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| CN 201010566408 CN102135778B (en) | 2010-12-01 | 2010-12-01 | Gas pressure regulator and gas pressure regulation method |
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| CN102135778B CN102135778B (en) | 2013-01-16 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017976A (en) * | 2012-12-03 | 2013-04-03 | 中国航空工业集团公司北京长城计量测试技术研究所 | Backpressure balanced type liquid high pressure regulation device |
| CN103064440A (en) * | 2012-11-30 | 2013-04-24 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fluid pressure adjusting device and adjusting method based on semiconductor cooler |
| CN104913872A (en) * | 2015-04-14 | 2015-09-16 | 西安中测计量技术有限公司 | Piston system preventing piston rod from fracture |
| CN108121375A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of twin-stage high-pressure gas pressure precise adjustment-control device and method |
| CN108227771A (en) * | 2016-12-14 | 2018-06-29 | 中国航空工业集团公司北京长城计量测试技术研究所 | The adjustable double capacity gas minute-pressure regulating devices of one kind and method |
| CN109976402A (en) * | 2019-04-26 | 2019-07-05 | 太原理工大学 | A kind of pressure difference automatic control device and control method |
| CN110793707A (en) * | 2019-11-10 | 2020-02-14 | 东北石油大学 | Intermediate container with digital display pressure monitoring function |
| CN113047719A (en) * | 2020-07-29 | 2021-06-29 | 承德特耐力门控科技有限公司 | Pneumatic automatic return device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488203B (en) * | 2013-08-13 | 2015-09-23 | 中国航空工业集团公司北京长城计量测试技术研究所 | Based on pulse width modulation mode gaseous tension fast adjuster and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5281885A (en) * | 1989-11-14 | 1994-01-25 | Hitachi Metals, Ltd. | High-temperature stacked-type displacement device |
| JPH11324813A (en) * | 1998-05-18 | 1999-11-26 | Aisan Ind Co Ltd | Lpg regulator |
| CN2360873Y (en) * | 1998-10-14 | 2000-01-26 | 沈志盛 | Gas pressure regulator with improved structure |
| US20080256754A1 (en) * | 2007-04-20 | 2008-10-23 | Jason Scott Mevius | Multi-tool adjusting screw |
| CN101454600A (en) * | 2006-05-24 | 2009-06-10 | O.M.T.工厂机械塔塔里尼有限公司 | Improved gas pressure regulator |
-
2010
- 2010-12-01 CN CN 201010566408 patent/CN102135778B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5281885A (en) * | 1989-11-14 | 1994-01-25 | Hitachi Metals, Ltd. | High-temperature stacked-type displacement device |
| JPH11324813A (en) * | 1998-05-18 | 1999-11-26 | Aisan Ind Co Ltd | Lpg regulator |
| CN2360873Y (en) * | 1998-10-14 | 2000-01-26 | 沈志盛 | Gas pressure regulator with improved structure |
| CN101454600A (en) * | 2006-05-24 | 2009-06-10 | O.M.T.工厂机械塔塔里尼有限公司 | Improved gas pressure regulator |
| US20080256754A1 (en) * | 2007-04-20 | 2008-10-23 | Jason Scott Mevius | Multi-tool adjusting screw |
Non-Patent Citations (1)
| Title |
|---|
| 《汽车与配件》 19921231 曹建钢 罗曼气压调节器的国产化 第33页 1-4 , 第3期 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064440A (en) * | 2012-11-30 | 2013-04-24 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fluid pressure adjusting device and adjusting method based on semiconductor cooler |
| CN103064440B (en) * | 2012-11-30 | 2015-07-22 | 中国航空工业集团公司北京长城计量测试技术研究所 | Fluid pressure adjusting device and adjusting method based on semiconductor cooler |
| CN103017976A (en) * | 2012-12-03 | 2013-04-03 | 中国航空工业集团公司北京长城计量测试技术研究所 | Backpressure balanced type liquid high pressure regulation device |
| CN103017976B (en) * | 2012-12-03 | 2015-01-07 | 中国航空工业集团公司北京长城计量测试技术研究所 | Backpressure balanced type liquid high pressure regulation device |
| CN104913872A (en) * | 2015-04-14 | 2015-09-16 | 西安中测计量技术有限公司 | Piston system preventing piston rod from fracture |
| CN104913872B (en) * | 2015-04-14 | 2018-04-24 | 西安中测计量技术有限公司 | A kind of piston system for preventing rod fracture |
| CN108121375A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of twin-stage high-pressure gas pressure precise adjustment-control device and method |
| CN108227771A (en) * | 2016-12-14 | 2018-06-29 | 中国航空工业集团公司北京长城计量测试技术研究所 | The adjustable double capacity gas minute-pressure regulating devices of one kind and method |
| CN108227771B (en) * | 2016-12-14 | 2020-10-16 | 中国航空工业集团公司北京长城计量测试技术研究所 | Adjustable double-variable-volume gas micro-pressure adjusting device and method |
| CN109976402A (en) * | 2019-04-26 | 2019-07-05 | 太原理工大学 | A kind of pressure difference automatic control device and control method |
| CN110793707A (en) * | 2019-11-10 | 2020-02-14 | 东北石油大学 | Intermediate container with digital display pressure monitoring function |
| CN110793707B (en) * | 2019-11-10 | 2021-05-14 | 东北石油大学 | Intermediate container with digital display pressure monitoring function |
| CN113047719A (en) * | 2020-07-29 | 2021-06-29 | 承德特耐力门控科技有限公司 | Pneumatic automatic return device |
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