CN108930676B - Pneumatic device control system with adjusting, quick closing and position keeping functions - Google Patents
Pneumatic device control system with adjusting, quick closing and position keeping functions Download PDFInfo
- Publication number
- CN108930676B CN108930676B CN201810840436.XA CN201810840436A CN108930676B CN 108930676 B CN108930676 B CN 108930676B CN 201810840436 A CN201810840436 A CN 201810840436A CN 108930676 B CN108930676 B CN 108930676B
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- valve
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- speed increaser
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The pneumatic device control system with the functions of regulation, quick closing and position keeping comprises an air storage tank, an electromagnetic valve, a positioner, a pneumatic control valve, a speed increaser, an exhaust valve, a position keeping valve and a driving cylinder, wherein the air storage tank provides an air source, the air storage tank directly transmits air to the electromagnetic valve and the speed increaser, the electromagnetic valve, the positioner, the pneumatic control valve, the speed increaser, the exhaust valve, the position keeping valve and the driving cylinder are mutually connected through pipelines, the functions of regulating the valve, quick opening/closing the valve and the valve position keeping can be simultaneously realized, and the air circuit system has a simple structure and meets the requirements of normal, accident and special technology.
Description
Technical Field
The present invention relates to a control system, and more particularly to a pneumatic device control system.
Background
At present, the control air paths of the pneumatic device are single, so that the regulation function and the quick-opening function are realized, the position-preserving function is difficult to realize, the quick-opening function is difficult to realize, and if the functions are realized, a plurality of devices are needed to be adopted, so that manpower and material resources are consumed.
Disclosure of Invention
In order to overcome the defects of the existing control system, the invention provides a pneumatic device control system which can realize the functions of regulation, quick on/off and position keeping.
The invention solves the technical problems of the pneumatic device control system with the functions of regulation, quick closing and position preservation, which comprises an air storage tank, an electromagnetic valve, a positioner, a pneumatic control valve, a speed increaser, an exhaust valve, a position preservation valve and a driving air cylinder, wherein the air storage tank provides an air source, the air storage tank directly transmits air to an electromagnetic valve P port and a speed increaser A port, the electromagnetic valve A port is connected with the positioner C port through a pipeline, the electromagnetic valve B port is output through a first three-way and is divided into two paths, one path is connected with the pneumatic control valve signal port C, the other path is output through a second three-way and is connected with the speed increaser signal port C, the other path is connected with the position preservation valve signal port C, a second one-way valve is arranged on the electromagnetic valve B port and a second three-way connecting pipeline, the second one-way valve ensures that the electromagnetic valve B port transmits air to the speed increaser signal port C, the first one-way valve is arranged on the connecting pipeline of the second three-way and the position preservation valve signal port C, and the first one-way valve ensures that air flows to the speed increaser signal port C port; the positioner A port is connected with the accelerator signal port C, a third one-way valve is arranged on a pipeline connected with the accelerator signal port C, and the third one-way valve ensures that the positioner A port carries out unidirectional gas transmission to the accelerator signal port C; the positioner B is divided into two paths through a third tee joint, one path is connected with the air control valve A, the other path is divided into two paths through a fourth tee joint, one path is connected with the position-preserving valve signal port C, the other path is connected with the exhaust valve I, a fourth one-way valve is arranged on a pipeline connected with the position-preserving valve signal port C through the fourth tee joint, and the fourth one-way valve ensures that air flows to the position-preserving valve signal port C in a one-way manner; the speed increaser B port is connected with the air inlet AI port of the position-preserving valve, the air outlet valve O port is connected with the air inlet AII port of the position-preserving valve, and the air outlet BI port and the air outlet BII port of the position-preserving valve are connected with the driving cylinder.
The beneficial effects of the invention are as follows: the valve can be regulated, the valve can be opened or closed quickly and the valve can be kept at the same time, and the air circuit system has simple structure and meets the requirements of normal, accident and special process.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
In the figure: 1. a gas storage tank; 2. a first tee 2;3. an electromagnetic valve; 4. a positioner; 5. a driving cylinder; 6. a valve; 7. a retention valve; 8. a first one-way valve; 9. a speed increaser; 10. a second one-way valve; 11. an exhaust valve; 12. a third one-way valve; 13. a fourth one-way valve; 14. a pneumatic control valve; 15. a fourth tee; 16. a second tee; 17. guan Faqiang; 18. opening a valve cavity; 19. and a third tee.
Detailed Description
As shown in figure 1, a pneumatic device control system with functions of regulation, quick closing and position keeping comprises a gas storage tank 1, an electromagnetic valve 3, a positioner 4, a pneumatic control valve 14, a speed increaser 9, an exhaust valve 11, a position keeping valve 7 and a driving cylinder 5, wherein the gas storage tank 1 provides a gas source, the gas storage tank 1 directly transmits gas to a port of the electromagnetic valve 3P and a port of the speed increaser 9A, the port of the electromagnetic valve 3A is connected with a port of the positioner 4C through a pipeline, a port of the electromagnetic valve 3B is output through a first tee joint 2 in two ways, one way is connected with a signal port C of the pneumatic control valve 14, the other way is output through a second tee joint 16 in two ways, one way is connected with the signal port C of the speed increaser 9, the other way is connected with the signal port C of the position keeping valve 7, a second one-way valve 10 is arranged on a connecting pipeline between the port of the electromagnetic valve 3B and the signal port C of the speed increaser 9, a first one-way valve 8 is arranged on a connecting pipeline between the second tee joint 16 and the signal port C of the position keeping valve 7, and the first one-way valve 8 guarantees that the gas flows to the signal port C of the speed increaser 9; the port of the positioner 4A is connected with the signal port C of the speed increaser 9, a third one-way valve 12 is arranged on a pipeline connected with the signal port C of the speed increaser 9, and the third one-way valve 12 ensures that the port of the positioner 4A carries out one-way gas transmission to the signal port C of the speed increaser 9; the port of the positioner 4B is divided into two paths through a third tee joint 19, one path is connected with the port of the pneumatic control valve 14A, the other path is divided into two paths through a fourth tee joint 15, one path is connected with the port C of the signal port of the position-preserving valve 7, the other path is connected with the port C of the exhaust valve 11I, a fourth one-way valve 13 is arranged on a pipeline connected with the port C of the signal port C of the position-preserving valve 7 through the fourth tee joint 15, and the fourth one-way valve 13 ensures that gas flows unidirectionally to the port C of the signal port C of the position-preserving valve 7; the mouth of the speed increaser 9B is connected with the mouth of the air inlet AI of the position-keeping valve 7, the mouth of the exhaust valve 11O is connected with the mouth of the air inlet AII of the position-keeping valve 7, and the mouth of the air outlet BI and the mouth of the air outlet BII of the position-keeping valve 7 are connected with the driving cylinder 5.
The control process is as follows:
1) The electromagnetic valve 3 is powered off, the positioner 4 obtains signals, and the valve 6 realizes the adjusting function.
The electromagnetic valve 3 is powered off, the air storage tank 1 supplies air to the opening of the electromagnetic valve 3A through the opening of the electromagnetic valve 3P, the opening of the locator 4C supplies air to the opening of the signal C of the speed increaser 9 at the moment, the opening of the signal C of the speed increaser 9 is enabled to obtain signals, the opening of the locator 4B is divided into two paths through the fourth tee joint 15, one path supplies air to the opening C of the signal port of the position-preserving valve 7, the other path supplies air to the opening of the exhaust valve 11I, the opening of the exhaust valve 11O supplies air to the opening AII of the air inlet AII of the position-preserving valve 7, and the opening AII of the air inlet AII of the position-preserving valve 7 is communicated with the air outlet BII; meanwhile, the air storage tank 1 supplies air to the mouth of the speed increaser 9A, the mouth of the speed increaser 9B supplies air to the mouth of the air inlet AI of the position-preserving valve 7, and the mouth of the air inlet AI of the position-preserving valve 7 is communicated with the air outlet BI; the air outlet BI port and the air outlet BII port of the position-preserving valve 7 are connected with the driving air cylinder 5, and the air outlet of the air outlet BI port and the air outlet BII port of the position-preserving valve 7 can be controlled by controlling the air outlet of the positioner 4A port and the air outlet BII port of the positioner 4B port, so that the adjusting function of the driving air cylinder 5 is realized, the driving air cylinder 5 is connected with the valve 6, and the adjusting function of the valve 6 is further realized.
2) The electromagnetic valve 3 is powered on, and the valve 6 realizes a quick opening/closing function.
The electromagnetic valve 3 is powered on, the air storage tank 1 supplies air to the electromagnetic valve 3B through the electromagnetic valve 3P, and the locator 4 loses the effect; the electromagnetic valve 3B is output in two ways through the first tee joint 2, one way supplies air to the signal port C of the pneumatic control valve 14, so that the signal port C of the pneumatic control valve 14 is signaled, the pneumatic control valve 14 is in air passage, and the sealing air pressure between the port of the positioner 4B and the port of the exhaust valve 11I is released through the pneumatic control valve 14, so that the exhaust valve 11 can exhaust normally while the positioner 4 is disabled; the other path is output through a second tee joint 16, one path supplies air to a signal port C of the speed increaser 9, so that the signal port C of the speed increaser 9 obtains a signal, meanwhile, the air storage tank 1 supplies air to a port 9A of the speed increaser, and a port 9B supplies air to an air inlet AI of the position maintaining valve 7, and the air inlet AI of the position maintaining valve 7 is communicated with an air outlet BI; the other path supplies gas to a signal port C of the position-preserving valve 7, so that the signal port C of the position-preserving valve 7 obtains a signal, and the gas path of the position-preserving valve 7 is communicated; at this time, when the air outlet BI port supplies air to the valve cavity 18 of the driving air cylinder 5, the air in the driving air cylinder 5 enters the air inlet AII port from the air outlet BII port and is discharged through the exhaust valve 11I port and the exhaust valve 11E port, the driving air cylinder 5 is connected with the valve 6, and then the quick opening function of the valve 6 is realized, and similarly, when the air outlet BI port supplies air to the valve cavity 17 of the driving air cylinder 5, the driving air cylinder 5 is connected with the valve 6, and then the quick closing function of the valve 6 is realized.
3) In special cases, when the positioner 4 loses the signal or loses the gas, the valve 6 realizes the position keeping function.
The air pressure of the air channel inside the positioner 4 is in a closed state, the air pressure is arranged between the opening of the positioner 4A and the opening of the positioner 4B because the valve 6 is positioned at a certain operation position, the air pressure is arranged between the opening of the positioner 4B and the air pressure of the air pressure outlet valve 11, the air pressure of the air pressure outlet valve 11 cannot be exhausted, the air pressure is arranged at the signal opening C of the position-preserving valve 7, the air channel of the position-preserving valve 7 is communicated, the valve closing cavity 17 of the driving cylinder 5 is communicated with the opening of the air outlet BII of the positioner 4, the air outlet BII is communicated with the opening of the air inlet AII, and the air pressure locking is arranged at the valve closing cavity 17 of the driving cylinder 5 because the air pressure outlet valve 11 cannot be exhausted; the air pressure is arranged between the opening of the positioner 4A and the opening of the speed increaser 9C, and the opening of the speed increaser 9B supplies air to the valve opening cavity 18 of the driving cylinder through the air inlet AI opening and the air outlet AI opening of the position maintaining valve 7, so that the valve opening cavity 18 of the driving cylinder 5 is locked by the air pressure; in combination, the driving cylinder 5 is in a static state, and the valve 6 is kept in position.
Claims (1)
1. A pneumatic device control system with adjusting, quick closing and position keeping functions is characterized in that: the device comprises an air storage tank, an electromagnetic valve, a positioner, a pneumatic control valve, a speed increaser, an exhaust valve, a position-keeping valve and a driving air cylinder, wherein the air storage tank provides an air source, the air storage tank directly transmits air to an electromagnetic valve P port and a speed increaser A port, the electromagnetic valve A port is connected with the positioner C port through a pipeline, the electromagnetic valve B port is output through a first three-way and is divided into two paths, one path is connected with the pneumatic control valve signal port C port, the other path is output through a second three-way and is divided into two paths, one path is connected with the speed increaser signal port C, the other path is connected with the position-keeping valve signal port C port, a second one-way valve is arranged on a connecting pipeline between the electromagnetic valve B port and the second three-way, the second one-way valve guarantees one-way air transmission to the speed increaser signal port C port, a first one-way valve is arranged on a connecting pipeline between the second three-way and the position-keeping valve signal port C port, and the first one-way valve guarantees the one-way flow of air to the speed increaser signal port C port; the positioner A port is connected with the speed increaser signal port C, a third one-way valve is arranged on a pipeline connected with the speed increaser signal port C, and the third one-way valve ensures that the positioner A port carries out one-way gas transmission to the speed increaser signal port C; the positioner B is divided into two paths through a third tee joint, one path is connected with the pneumatic control valve A, the other path is divided into two paths through a fourth tee joint, one path is connected with the position-preserving valve signal port C, the other path is connected with the exhaust valve I, a fourth one-way valve is arranged on a pipeline connected with the position-preserving valve signal port C of the fourth tee joint, and the fourth one-way valve ensures that gas flows to the position-preserving valve signal port C in a one-way manner; the speed increaser B port is connected with the position-keeping valve air inlet AI port, the exhaust valve O port is connected with the position-keeping valve air inlet AII port, and the air outlet BI port and the air outlet BII port of the position-keeping valve are connected with the driving cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810840436.XA CN108930676B (en) | 2018-07-27 | 2018-07-27 | Pneumatic device control system with adjusting, quick closing and position keeping functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810840436.XA CN108930676B (en) | 2018-07-27 | 2018-07-27 | Pneumatic device control system with adjusting, quick closing and position keeping functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108930676A CN108930676A (en) | 2018-12-04 |
| CN108930676B true CN108930676B (en) | 2024-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810840436.XA Active CN108930676B (en) | 2018-07-27 | 2018-07-27 | Pneumatic device control system with adjusting, quick closing and position keeping functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108930676B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526448B (en) * | 2022-01-12 | 2024-04-05 | 国家能源集团宁夏煤业有限责任公司 | Double-acting pneumatic control valve control system and petrochemical conveying equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004132003A (en) * | 2002-10-09 | 2004-04-30 | Shin Caterpillar Mitsubishi Ltd | Working machine |
| CN106051281A (en) * | 2016-08-03 | 2016-10-26 | 上海核阀门制造有限公司 | Control device for pneumatic piston type executing mechanism |
| CN107120465A (en) * | 2017-06-23 | 2017-09-01 | 重庆阿卡雷科技有限公司 | Gas circuit positive pressure protection system and single-acting operated pneumatic valve cylinder |
| CN208885657U (en) * | 2018-07-27 | 2019-05-21 | 江苏神通阀门股份有限公司 | A kind of pneumatic device control system with adjusting, quick closing valve and guarantor's bit function |
-
2018
- 2018-07-27 CN CN201810840436.XA patent/CN108930676B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004132003A (en) * | 2002-10-09 | 2004-04-30 | Shin Caterpillar Mitsubishi Ltd | Working machine |
| CN106051281A (en) * | 2016-08-03 | 2016-10-26 | 上海核阀门制造有限公司 | Control device for pneumatic piston type executing mechanism |
| CN107120465A (en) * | 2017-06-23 | 2017-09-01 | 重庆阿卡雷科技有限公司 | Gas circuit positive pressure protection system and single-acting operated pneumatic valve cylinder |
| CN208885657U (en) * | 2018-07-27 | 2019-05-21 | 江苏神通阀门股份有限公司 | A kind of pneumatic device control system with adjusting, quick closing valve and guarantor's bit function |
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| Publication number | Publication date |
|---|---|
| CN108930676A (en) | 2018-12-04 |
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