CN101539218B - Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism - Google Patents
Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism Download PDFInfo
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- CN101539218B CN101539218B CN2008102001535A CN200810200153A CN101539218B CN 101539218 B CN101539218 B CN 101539218B CN 2008102001535 A CN2008102001535 A CN 2008102001535A CN 200810200153 A CN200810200153 A CN 200810200153A CN 101539218 B CN101539218 B CN 101539218B
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 29
- 230000003321 amplification Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention relates to a control module of a high-pressure bypass pressure and temperature reducing valve actuating mechanism, belonging to the field of the hydraulic control technology. The invention aims to solve the technical problem of achieving the simultaneous existence of both two-step control and continuous control in the hydraulic control. The control module comprises an electric control unit, a hydraulic control unit and an oil cylinder for controlling a controlled valve, wherein the hydraulic control unit is provided with a pressure oil port and an oil return port. The control module is characterized in that the oil cylinder is a piston type oil cylinder with two working chambers; the control oil passage of the hydraulic control unit is divided into two ways, wherein one way is connected with the two working chambers of the oil cylinder from the pressure oil port through a quick control solenoid valve and a hydraulic control check valve, and another way is connected with the two working chambers of the oil cylinder from the pressure oil port through an electro hydraulic servo valve; the work of the quick control solenoid valve and the pilot-operated check valve is controlled by the electric control unit; and the oil cylinder is provided with a displacement sensor for sending the valve position signals of the controlled valve back. By utilizing the control module, the simultaneous existence of the two-step control and the continuous control can be achieved.
Description
Technical field
The present invention relates to hydraulic control technology, particularly relate to a kind of technology of control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism.
Background technique
The actuating mechanism controls of traditional valve has two kinds of switching mode and adjustment types, and switching mode actuator adopts two control modes, is used for control valve and opens fast or close, and adjustment type actuator adopts the continuous control mode, is used for the flow area of control valve.And the high-pressure bypass pressure and temperature reducing valve door of coal-fired power generator turbine not only needs quick opening and closing, but also need correctly locate in any position, carry out continuous control according to the input instruction, therefore above-mentioned two kinds of control modes all can't be applicable to the high-pressure bypass pressure and temperature reducing valve door.
Summary of the invention
At the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides a kind of control module that is applicable to high-pressure bypass pressure and temperature reducing valve actuating mechanism that can adopt two control modes can adopt the continuous control mode again.
In order to solve the problems of the technologies described above, the control module of a kind of high-pressure bypass pressure and temperature reducing valve actuating mechanism provided by the present invention, comprise electric control unit, hydraulic control unit, be used to control the oil cylinder of Controlled valve, described hydraulic control unit is provided with pressure hydraulic fluid port and return opening, it is characterized in that: described oil cylinder is the ram cylinder with two active chambers, the control oil channel of described hydraulic control unit is divided into two-way, one the road from the pressure hydraulic fluid port through a fast control solenoid valve, one Pilot operated check valve connects two active chambers of oil cylinder, another road connects two active chambers of oil cylinder through an electrohydraulic control from the pressure hydraulic fluid port, described Pilot operated check valve, electrohydraulic control all has two load ports, described fast control solenoid valve and electrohydraulic control are controlled its work by electric control unit, described oil cylinder is provided with displacement transducer, is used for the valve position signal to electric control unit feedback controlled valve.
Further, each load port of described electrohydraulic control is provided with stop valve with being connected of oil cylinder active chamber in the oil circuit, all stop valves are opened and closed synchronously by a locking electromagnetic valve, and described locking solenoid valve is controlled its work by electric control unit, and its filler opening connects the pressure hydraulic fluid port.
Further, described pressure hydraulic fluid port is provided with oil purifier.
The control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism provided by the invention, because the control oil channel of oil cylinder is divided into two-way, one the tunnel adopts two control modes, form by fast control solenoid valve, Pilot operated check valve, the continuous control mode is adopted on another road, cooperate displacement transducer to realize by electrohydraulic control, therefore can adopt two control modes can adopt the continuous control mode again, be applicable to high-pressure bypass pressure and temperature reducing valve actuating mechanism.
Description of drawings
Fig. 1 is the hydraulic diagram of the control module of embodiment of the invention high-pressure bypass pressure and temperature reducing valve actuating mechanism.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
As shown in Figure 1, the control module of a kind of high-pressure bypass pressure and temperature reducing valve actuating mechanism that the embodiment of the invention provided, comprise electric control unit 11, hydraulic control unit, be used to control the oil cylinder 7 of Controlled valve 12, described hydraulic control unit is provided with pressure hydraulic fluid port P and oil return inlet T, it is characterized in that: described oil cylinder 7 is the ram cylinders with two active chambers, the control oil channel of described hydraulic control unit is divided into two-way, one the road from pressure hydraulic fluid port P through a fast control solenoid valve 1, one Pilot operated check valve 8 connects two active chambers of oil cylinder 7, another road connects two active chambers of oil cylinder 7 through an electrohydraulic control 3 from pressure hydraulic fluid port P, described Pilot operated check valve 8, electrohydraulic control 3 all has two load ports, described fast control solenoid valve 1 and electrohydraulic control 3 are by electric control unit 11 its work of control, described oil cylinder 7 is provided with displacement transducer 6, is used for the valve position signal to electric control unit 11 feedback controlled valves 12.
Each load port of described electrohydraulic control 3 is provided with stop valve 9,10 with being connected of oil cylinder 7 active chambers in the oil circuit, be used to block working oil path, thereby locked cylinder 7, all stop valves are opened and closed synchronously by a locking solenoid valve 2 controls, described locking solenoid valve 2 is by electric control unit 11 its work of control, and its filler opening connects pressure hydraulic fluid port P.
Described pressure hydraulic fluid port P is provided with oil purifier 4, keeps clean to guarantee the hydraulic oil that enters each valve.
Described pressure hydraulic fluid port P is provided with pressure differential indicator 5, is used to indicate the chocking-up degree of oil purifier 4.
During Controlled valve 12 normal regulating, the transfer valve bit instruction is given electric control unit 11, the valve position signal of the Controlled valve 12 that electric control unit 11 first detecting position displacement sensors 6 are fed back, the work order that sends valve opening according to the difference of valve position signal and valve position instruction again or close is to electrohydraulic control 3, electrohydraulic control 3 is delivered to oil cylinder 7 corresponding work chambeies after transform electric is become hydraulic pressure signal and amplification, thereby driving oil cylinder piston motion, and by 12 work of piston drive Controlled valve, drive displacement transducer 6 work simultaneously, and valve position signal is fed back to electric control unit 11 by displacement transducer 6, balance each other until valve position signal and valve position instruction, thereby Controlled valve 12 is adjusted to required aperture, realizes valve position control.
Because electrohydraulic control 3 is provided with mechanical bias, so electrohydraulic control 3 is lost the job, and Controlled valve 12 will be parked on the predetermined safe position behind the signal.
Controlled valve 12 is opened or during quick closing valve soon, input is opened soon or quick closing valve instructs to electric control unit 11, electric control unit 11 sends command adapted thereto to fast control solenoid valve 1, fast control solenoid valve 1 becomes hydraulic pressure signal with transform electric after Pilot operated check valve 8 is delivered to oil cylinder 7 corresponding work chambeies, thereby driving oil cylinder piston rapid movement, and drive Controlled valve 12 by piston and open fast or close.
When Controlled valve 12 needs the location, the input positioning instruction is given electric control unit 11, electric control unit 11 sends positioning instruction to locking solenoid valve 2, control stop valve 9,10 was blocked working oil path after locking solenoid valve 2 became hydraulic pressure signal with transform electric, thereby, make Controlled valve 12 be locked to current location with oil cylinder 7 lockings.
Claims (3)
1. the control module of a high-pressure bypass pressure and temperature reducing valve actuating mechanism, comprise electric control unit, hydraulic control unit, be used to control the oil cylinder of Controlled valve, described hydraulic control unit is provided with pressure hydraulic fluid port and return opening, it is characterized in that: described oil cylinder is the ram cylinder with two active chambers, the control oil channel of described hydraulic control unit is divided into two-way, one the road from the pressure hydraulic fluid port through a fast control solenoid valve, one Pilot operated check valve connects two active chambers of oil cylinder, another road connects two active chambers of oil cylinder through an electrohydraulic control from the pressure hydraulic fluid port, described Pilot operated check valve, electrohydraulic control all has two load ports, described fast control solenoid valve and electrohydraulic control are controlled its work by electric control unit, described oil cylinder is provided with displacement transducer, is used for the valve position signal to electric control unit feedback controlled valve.
2. the control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism according to claim 1, it is characterized in that: each load port of described electrohydraulic control is provided with stop valve with being connected of oil cylinder active chamber in the oil circuit, all stop valves are opened and closed synchronously by a locking electromagnetic valve, described locking solenoid valve is controlled its work by electric control unit, and its filler opening connects the pressure hydraulic fluid port.
3. the control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism according to claim 1, it is characterized in that: described pressure hydraulic fluid port is provided with oil purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102001535A CN101539218B (en) | 2008-09-19 | 2008-09-19 | Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102001535A CN101539218B (en) | 2008-09-19 | 2008-09-19 | Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101539218A CN101539218A (en) | 2009-09-23 |
| CN101539218B true CN101539218B (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102001535A Expired - Fee Related CN101539218B (en) | 2008-09-19 | 2008-09-19 | Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9322243B2 (en) | 2012-08-17 | 2016-04-26 | S.P.M. Flow Control, Inc. | Automated relief valve control system and method |
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| US9273543B2 (en) | 2012-08-17 | 2016-03-01 | S.P.M. Flow Control, Inc. | Automated relief valve control system and method |
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| USD707332S1 (en) | 2013-03-15 | 2014-06-17 | S.P.M. Flow Control, Inc. | Seal assembly |
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| WO2017041848A1 (en) * | 2015-09-10 | 2017-03-16 | Festo Ag & Co. Kg | Fluid system and process valve |
| CN105443248A (en) * | 2015-11-03 | 2016-03-30 | 北京航科发动机控制系统科技有限公司 | Standby system with electro-hydraulic conversion components of different structures |
| CN110159362B (en) * | 2019-06-17 | 2022-04-05 | 南海发电一厂有限公司 | Steam turbine bypass control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121618A (en) * | 1976-12-13 | 1978-10-24 | Continental Oil Company | Hydraulic ramping circuit for control valve |
| US5215359A (en) * | 1990-05-16 | 1993-06-01 | Alfred Teves Gmbh | Hydraulic anti-locking brake unit |
| CN2211530Y (en) * | 1995-02-25 | 1995-11-01 | 王红柱 | Automatic valve actuator |
| CN201100473Y (en) * | 2007-11-16 | 2008-08-13 | 池双 | Spring energy storage electrolysis joint valve gate executor |
| CN201259004Y (en) * | 2008-09-19 | 2009-06-17 | 上海汇益液压控制系统工程有限公司 | Control module of bypass pressure-reducing and desuperheating valve actuating mechanism |
-
2008
- 2008-09-19 CN CN2008102001535A patent/CN101539218B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121618A (en) * | 1976-12-13 | 1978-10-24 | Continental Oil Company | Hydraulic ramping circuit for control valve |
| US5215359A (en) * | 1990-05-16 | 1993-06-01 | Alfred Teves Gmbh | Hydraulic anti-locking brake unit |
| CN2211530Y (en) * | 1995-02-25 | 1995-11-01 | 王红柱 | Automatic valve actuator |
| CN201100473Y (en) * | 2007-11-16 | 2008-08-13 | 池双 | Spring energy storage electrolysis joint valve gate executor |
| CN201259004Y (en) * | 2008-09-19 | 2009-06-17 | 上海汇益液压控制系统工程有限公司 | Control module of bypass pressure-reducing and desuperheating valve actuating mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9322243B2 (en) | 2012-08-17 | 2016-04-26 | S.P.M. Flow Control, Inc. | Automated relief valve control system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101539218A (en) | 2009-09-23 |
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Granted publication date: 20101027 Termination date: 20160919 |