CN108843844A - Fire prevention electro-hydraulic actuator - Google Patents
Fire prevention electro-hydraulic actuator Download PDFInfo
- Publication number
- CN108843844A CN108843844A CN201810965743.0A CN201810965743A CN108843844A CN 108843844 A CN108843844 A CN 108843844A CN 201810965743 A CN201810965743 A CN 201810965743A CN 108843844 A CN108843844 A CN 108843844A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- oil
- valve
- fire
- electro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
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- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The present invention provides a kind of fire prevention electro-hydraulic actuator, the technical problem to be solved is that：How to realize that electro-hydraulic actuator is completed to close the operation of valve in a fire.The method is characterized in that：Including rotary oil cylinder, fuel tank and its oil return line, accumulator and its oil pipe, rotary oil cylinder includes two oil cylinders of A and B, and the A oil cylinder port of an end Jie rotary oil cylinder of the first fusible plug pipeline is another to terminate on accumulator oil pipe；One end Jie B oil cylinder port of the second fusible plug pipeline, on another oil return line for terminating at fuel tank.The positive effect of the present invention is the operation for remaining to complete to close valve in a fire, closes valve in time, and fire damage expansion is avoided to have fire-proof function.
Description
Technical field
The present invention relates to a kind of electro-hydraulic actuators, specifically drive, control the electro-hydraulic actuator of pipeline valve.
Background technique
Belong to inflammable, explosive occasion in refinery factory and petroleum filling etc., is designed with valve in the pipeline of such occasion
Door.Driving at present, the electro-hydraulic actuator for controlling pipeline valve, including rotary oil cylinder, fuel tank, hydraulic accumulator（Hereinafter referred to as accumulation of energy
Device）And its oil pipe, wherein rotary oil cylinder includes two oil cylinders of A and B.When electro-hydraulic actuator driving, control pipeline valve, oil pump is given
Accumulator is oil-filled, and when accumulator reaches the pressure value of setting, oil pump stops working.If valve needs to close, electromagnetic switch
The left electromagnet electrification of valve, the high pressure oil of accumulator export the A oil cylinder port into rotary oil cylinder by solenoid directional control valve accordingly,
The oil return of B oil cylinder shifts to B oil cylinder, band moving gear from A oil cylinder by the corresponding inlet flow oil return box of solenoid directional control valve, drive rack
It rotates clockwise, driving valve is closed；If desired when valve is opened by closing, the right electromagnet electrification of solenoid directional control valve is that electromagnetism changes
It commutates to valve, outlet of the high pressure oil of accumulator after solenoid directional control valve commutates enters B oil cylinder, and the oil return of A oil cylinder is by electricity
Inlet flow oil return box after the commutation of magnetic reversal valve, drive rack shift to A oil cylinder from B oil cylinder, and band moving gear is rotated counterclockwise, driven
Valve is by closing opening；If desired for valve when a certain position is kept, solenoid directional control valve is in middle position, and solenoid directional control valve is all
Inlet and outlet is closed.The normality of the pipeline valve of above-mentioned occasion is that valve opens or closes and holding position, therefore electro-hydraulic execution
The normality of device is that solenoid directional control valve is in closed state.If desired the normality such as closing valve for changing valve, needs electric power to change electromagnetism
To valve electromagnet excitation, electro-hydraulic actuator could work.
When fire or other perils occur for above-mentioned inflammable, explosive occasion and its equipment, if can be at first
Between close valve, block medium, it will be able to avoid the expansion of fire incident, reduce loss.But fire occurs in above-mentioned occasion
When, general operation is to be initially switched off power supply, and interruption of power supply, at this moment solenoid directional control valve is in close state i.e. electro-hydraulic actuator and is unable to work
Make, valve can not close, i.e., existing electro-hydraulic actuator does not have fire-proof function.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of fire prevention electro-hydraulic actuators.
The object of the present invention is achieved like this：It sets rotary oil cylinder driving valve to close, the moving direction of rack gear is tooth
Item shifts to B oil cylinder from A oil cylinder.The present invention includes rotary oil cylinder, fuel tank and its oil return line, accumulator and its oil pipe, rotation oil
Cylinder includes two oil cylinders of A and B, it is characterized in that：First fusible plug pipeline（Fusible plug pipeline refers to the pipeline provided with fusible plug）'s
The A oil cylinder port of one end Jie rotary oil cylinder, it is another to terminate on accumulator oil pipe；One end Jie B of the second fusible plug pipeline
Oil cylinder port, on another oil return line for terminating at fuel tank.
When above-mentioned inflammable, explosive occasion and its equipment are there is no when fire, electric power normal power supply, two fusible plug pipes
Road is in blocked state at normal temperature, and at this moment the present invention maintains to work normally at normal temperature as described in 0002 section, is typically in often
State, i.e. solenoid directional control valve are in close state.When above-mentioned inflammable, explosive occasion and its equipment are when occurring fire, first
Time power cut, interruption of power supply, while environment temperature rise to 250 DEG C or so, at this moment two fusible plug fusings, and two meltable
It is open-minded to fill in pipeline, the high pressure oil of accumulator passes through the first fusible plug pipeline, into A oil cylinder port, while the apiezon oil in B oil cylinder
Successively pass through its hydraulic fluid port, the second fusible plug pipeline, flows back to fuel tank, drive rack shifts to B oil cylinder from A oil cylinder, and gear revolves clockwise
Turn, driving valve is closed.
Compared with prior art, the positive effect of the present invention is：The operation for completing to close valve is remained in a fire, in time
Valve is closed, fire damage is avoided to expand.
Detailed description of the invention
The present invention is further illustrated with reference to the accompanying drawing.
Fig. 1 is schematic diagram of the invention.
Specific embodiment
Setting rotary oil cylinder 1 drives valve to close, and the moving direction of rack gear is that rack gear from A oil cylinder shifts to B oil cylinder.The present invention
Including rotary oil cylinder, fuel tank 4 and its oil return line 41, accumulator 10 and its oil pipe 101, rotary oil cylinder includes two oil of A and B
Cylinder, the A oil cylinder port of an end Jie rotary oil cylinder of the first fusible plug pipeline 3 are another to terminate on accumulator oil pipe 101；The
One end Jie B oil cylinder port of two fusible plug pipelines 2, on another oil return line 41 for terminating at fuel tank.One-way throttle valve 6 is adjusted
The movement velocity of actuator.7 be pressure switch, and 8 be pressure gauge.
When above-mentioned inflammable, explosive occasion and its equipment are there is no when fire, electric power normal power supply, two fusible plug pipes
Road is in blocked state at normal temperature, and at this moment the present invention works normally at normal temperature, and oil pump 5 is oil-filled to accumulator, works as accumulator
When pressure reaches the pressure value of setting, oil pump stops working.If valve needs to close, the electrification of the left electromagnet of solenoid directional control valve 9,
The high pressure oil of accumulator exports the A oil cylinder port into rotary oil cylinder by solenoid directional control valve accordingly, and the oil return of B oil cylinder passes through
The corresponding inlet flow oil return box of solenoid directional control valve, drive rack 11 shift to B oil cylinder from A oil cylinder, and band moving gear 12 rotates clockwise,
Valve is driven to close；When valve being needed to be opened by closing, the high pressure oil of solenoid directional control valve commutation, accumulator passes through solenoid directional control valve
Outlet after commutation enters B oil cylinder, inlet flow oil return box of the oil return of A oil cylinder after solenoid directional control valve commutates, drive rack
A oil cylinder is shifted to from B oil cylinder, band moving gear rotates counterclockwise, drives valve by closing opening；If desired valve is protected in a certain position
When holding, solenoid directional control valve is closed, all inlet and outlets of solenoid directional control valve are closed.The normality of the pipeline valve of above-mentioned occasion
It is that valve is opened and holding position, therefore the normality of electro-hydraulic actuator is that solenoid directional control valve is in closed state.
When fire occurs for above-mentioned inflammable, explosive occasion and its equipment, cut off the power, interruption of power supply, while environment temperature
Degree rises to 250 DEG C, and at this moment two fusible plugs 21 and 31 melt, and two fusible plug pipelines are open-minded, and the high pressure oil of accumulator passes through
First fusible plug pipeline, into A oil cylinder port, while the apiezon oil in B oil cylinder successively passes through its hydraulic fluid port, the second fusible plug pipe
Fuel tank is flowed back on road, and drive rack shifts to B oil cylinder from A oil cylinder, and gear rotates clockwise, and driving valve is closed.
Claims (1)
1. a kind of fire prevention electro-hydraulic actuator, including rotary oil cylinder, fuel tank and its oil return line, accumulator and its oil pipe, rotation oil
Cylinder includes two oil cylinders of A and B, it is characterized in that：The A oil cylinder port of one end Jie rotary oil cylinder of the first fusible plug pipeline, it is another
It terminates on accumulator oil pipe；One end Jie B oil cylinder port of the second fusible plug pipeline, another oil return line for terminating at fuel tank
On.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810965743.0A CN108843844A (en) | 2018-08-23 | 2018-08-23 | Fire prevention electro-hydraulic actuator |
| PCT/CN2018/107250 WO2020037760A1 (en) | 2018-08-23 | 2018-09-25 | Fireproof electro-hydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810965743.0A CN108843844A (en) | 2018-08-23 | 2018-08-23 | Fire prevention electro-hydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108843844A true CN108843844A (en) | 2018-11-20 |
Family
ID=64188772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810965743.0A Pending CN108843844A (en) | 2018-08-23 | 2018-08-23 | Fire prevention electro-hydraulic actuator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108843844A (en) |
| WO (1) | WO2020037760A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503225A (en) * | 2021-02-05 | 2021-03-16 | 成都迈可森流体控制设备有限公司 | Tank root valve hydraulic system suitable for emergency fire |
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| CN2531185Y (en) * | 2002-04-09 | 2003-01-15 | 沈阳东北电力调节技术研究所 | Integrated electrohydraulic control quick-shutting off valve |
| CN102620040A (en) * | 2012-04-23 | 2012-08-01 | 沈阳东北电力调节技术有限公司 | Electrohydraulic system for driving large-size quarter-turn valve by using solar low-power power supply |
| CN203680578U (en) * | 2013-12-06 | 2014-07-02 | 益阳橡胶塑料机械集团有限公司 | Hydraulic control device of internal mixer |
| CN204476893U (en) * | 2014-12-31 | 2015-07-15 | 太重煤机有限公司 | The whirligig of double hydraulic cylinder effect and double hydraulic cylinder acting hydraulic control system |
| CN105257889A (en) * | 2015-07-17 | 2016-01-20 | 湖南山源安自控***有限公司 | Electro-hydraulic driving system for sluice valve and sluice valve |
| CN108167508A (en) * | 2017-12-25 | 2018-06-15 | 保定市新华石化设备制造有限公司 | Electro-hydraulic valve emergent cut-out apparatus |
| CN108412820A (en) * | 2018-05-16 | 2018-08-17 | 维特力（深圳）流体工程有限公司 | A kind of 30000Psi super-pressure well head safe control system |
| CN208734986U (en) * | 2018-08-23 | 2019-04-12 | 沈阳东北电力调节技术有限公司 | Fire prevention electro-hydraulic actuator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121873A (en) * | 1982-06-16 | 1984-01-04 | Roger Graham Williams | Actuating systems for operating doors |
| CN101922562A (en) * | 2010-08-14 | 2010-12-22 | 江南机器（集团）有限公司 | Dual-piston pneumatic ball valve of compressed air bundling air cylinder |
| CN204002249U (en) * | 2014-08-27 | 2014-12-10 | 宁波合力伟业消防科技有限公司 | There is the pneumatic window of multiple open function |
| CN205260991U (en) * | 2015-12-22 | 2016-05-25 | 上海大通自控设备有限公司 | Valve with cut off protection device fast |
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2018
- 2018-08-23 CN CN201810965743.0A patent/CN108843844A/en active Pending
- 2018-09-25 WO PCT/CN2018/107250 patent/WO2020037760A1/en active Application Filing
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| CN2531185Y (en) * | 2002-04-09 | 2003-01-15 | 沈阳东北电力调节技术研究所 | Integrated electrohydraulic control quick-shutting off valve |
| CN102620040A (en) * | 2012-04-23 | 2012-08-01 | 沈阳东北电力调节技术有限公司 | Electrohydraulic system for driving large-size quarter-turn valve by using solar low-power power supply |
| CN203680578U (en) * | 2013-12-06 | 2014-07-02 | 益阳橡胶塑料机械集团有限公司 | Hydraulic control device of internal mixer |
| CN204476893U (en) * | 2014-12-31 | 2015-07-15 | 太重煤机有限公司 | The whirligig of double hydraulic cylinder effect and double hydraulic cylinder acting hydraulic control system |
| CN105257889A (en) * | 2015-07-17 | 2016-01-20 | 湖南山源安自控***有限公司 | Electro-hydraulic driving system for sluice valve and sluice valve |
| CN108167508A (en) * | 2017-12-25 | 2018-06-15 | 保定市新华石化设备制造有限公司 | Electro-hydraulic valve emergent cut-out apparatus |
| CN108412820A (en) * | 2018-05-16 | 2018-08-17 | 维特力（深圳）流体工程有限公司 | A kind of 30000Psi super-pressure well head safe control system |
| CN208734986U (en) * | 2018-08-23 | 2019-04-12 | 沈阳东北电力调节技术有限公司 | Fire prevention electro-hydraulic actuator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503225A (en) * | 2021-02-05 | 2021-03-16 | 成都迈可森流体控制设备有限公司 | Tank root valve hydraulic system suitable for emergency fire |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020037760A1 (en) | 2020-02-27 |
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