CN203240061U - Control system of emptying valve - Google Patents
Control system of emptying valve Download PDFInfo
- Publication number
- CN203240061U CN203240061U CN 201320226686 CN201320226686U CN203240061U CN 203240061 U CN203240061 U CN 203240061U CN 201320226686 CN201320226686 CN 201320226686 CN 201320226686 U CN201320226686 U CN 201320226686U CN 203240061 U CN203240061 U CN 203240061U
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- valve
- oil pump
- power supply
- control system
- control
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Abstract
The utility model relates to the technical field of emptying valves and provides a control system of an emptying valve. The control system comprises an oil pump, an overflow valve, an electromagnetic directional valve and double one-way throttle valves, wherein the oil pump, the overflow valve, the electromagnetic directional valve and the double one-way throttle valves are sequentially connected. A hydraulic pressure meter is arranged between the overflow valve and the electromagnetic directional valve. The oil pump is connected with an oil pump motor. The control system further comprises an electric control cabinet which is connected with the electromagnetic directional valve and the oil pump motor.
Description
Technical field
The utility model relates to the atmospheric valve technical field, and a kind of control system of atmospheric valve is provided.
Background technique
It is a most important application in combined-cycle power plant that atmospheric valve is used.These valves must be walked around steam turbine with the main steam of exhaust heat boiler when just having begun in operation and be discharged in the atmosphere, and are too fast to guarantee that the unit temperature can not rise.Therefore provide a kind of control system of atmospheric valve very necessary.
Summary of the invention
This novel control system that aims to provide a kind of atmospheric valve.
This is novel to achieve these goals by the following technical solutions:
A kind of control system of atmospheric valve, it is characterized in that: comprise the oil pump, relief valve, solenoid directional control valve, the Double throttle check valve that are linked in sequence, be provided with hydraulic gage between described relief valve and solenoid directional control valve, described oil pump is connected with Oil pump electrical machinery, also comprise electric control box, described electric control box connects solenoid directional control valve and Oil pump electrical machinery.
In the such scheme, described oil pump adopts high pressure hose to connect atmospheric valve.
In the such scheme, described solenoid directional control valve adopts 3-position 4-way 24V DC electromagnetic valve.
In the such scheme, the circuit of described electric control box comprises power supply indicator, DC power supply, emergency stop push button, electromagnetic switch valve control unit, VCU, described DC power supply input point is connected with power supply indicator, the DC power supply connects the electromagnetic switch valve control unit, VCU, is provided with emergency stop push button between DC power supply and electromagnetic switch valve control unit, VCU.
The present invention has following beneficial effect:
One, 3-position 4-way 24V DC electromagnetic valve, Double throttle check valve, Pilot operated check valve, relief valve composition control valve cell.By electric control box control valve unit, realize that the atmospheric valve unlatching is closed.
Two, the utility model adopts electric control box to lay scheme: be installed on the other wall of atmospheric valve electric control box is whole.On the control box panel power supply indicator is installed, atmospheric valve rises or decline tutorial light (red is green), and is easy to use succinct.
Three, the hydraulic tube scheme of connecting fluid press pump and atmospheric valve: adopt high pressure hose to be connected, make on-the-spot standard good-looking.
Description of drawings
Fig. 1 is schematic representation of the present utility model;
Fig. 2 is schematic diagram of the present utility model;
Fig. 3 is the utility model electric control box circuit diagram;
Among the figure 1 for electric control box, 2 for Oil pump electrical machinery, 3 for fuel tank, 4 for solenoid directional control valve, 5 for Double throttle check valve, 6 relief valves, 7 for oil outlet/return opening, 8 for level meter, 9 for drain oil, 10 for steel pipe, 11 for by jack panel, 12 water valves, 21 for the electric motor starting unit, 22 for power supply indicator, 23 for the 24VDC power supply, 24 for emergency stop push button, 25 for S1 among electromagnetic switch valve control unit, VCU, Fig. 3 be that rise control, S2 of solenoid directional control valve is the solenoid directional control valve control that descends.
Embodiment
The below is described further the utility model:
One, atmospheric valve hydraulic control system functions of the equipments are introduced
Primer fluid oil-pressing pump motor rotation normally operates:
1. relief valve, solenoid directional control valve make pressure reach the work on the spot state, and the block of valve is dead.
2. bidirectional throttling valve is used for regulating up and down running speed of atmospheric valve, regulates according to presence states.
3. selector valve employing H type meta is four-way, and when atmospheric valve was not worked up and down, oil pump was in unloaded state.
Two, atmospheric valve hydraulic control system equipment forms
1. oil pump and Oil pump electrical machinery;
2. relief valve;
3. solenoid directional control valve;
4. hydraulic gage;
5. Double throttle check valve;
6. electric control box.
Three, atmospheric valve hydraulic control system design Scheme Characteristics
1. 3-position 4-way 24V DC electromagnetic valve (solenoid directional control valve), Double throttle check valve, Pilot operated check valve, relief valve composition control valve cell.By electric control box control valve unit, realize that the atmospheric valve unlatching is closed.
2. electric control box is laid scheme: be installed on the other wall of atmospheric valve electric control box is whole.On the control box panel power supply indicator is installed, atmospheric valve rises or decline tutorial light (red is green).
3. the hydraulic tube scheme of connecting fluid press pump and atmospheric valve: adopt high pressure hose to be connected, make on-the-spot standard good-looking.
Four, atmospheric valve hydraulic control system technical parameter
Volume of fuel tank; 60L
Flow: 1.5L/min
Power of motor; 1.1KW
Electric moter voltage; 220V/380V (on-the-spot selected)
Electrical equipment control; 24V/22V (on-the-spot selected)
Five, atmospheric valve hydraulic control system primary component brand
1. oil hydraulic pump: Italian Luo Si company produces
2. solenoid directional control valve: German REXROTH produces
3. Double throttle check valve: Japanese REXROTH produces
4. Pilot operated check valve: German REXROTH produces
5. electrical configurations: Schneider
Six, the atmospheric valve hydraulic control system belongs to program control, its hydraulic element and act on as follows;
1. oil pump and Oil pump electrical machinery.This system's oil pump adopts Italian Luo Si company, and the electronic twin-stage oil pump of ZE series can obtain larger flow when low pressure, and the control of bypass pressure, perfect heat-dissipating, minimizing cycle period are increased work efficiency.Motor is three Wechselstrommotors, and operating current is low by 18% than like product, drives operation of oil pump by coupling.
2. relief valve; This element adopts German REXROTH hydraulic element, on the restriction oil hydraulic circuit, and the pressure that pump produces, thus also limit the power that is applied on other element.When pressure reached predefined value, valve will be opened automatically.Want to heighten the pressure setting, the clockwise direction rotatable handle.Pressure regulation range 1-210bar has protected this system pressure safety.
3. solenoid directional control valve, this element adopts German REXROTH hydraulic element, and this system oil pump is in start and do not shut down and start or stop in the bringing onto load situation.The basic structure of reversing control valve; Circular groove (being generally foundry goods) is driven in the hole vertically on housing.Axial bore is separated by circular groove, has formed thus control channel in housing.The piston that an activity is arranged in axial bore.If the promotion control piston, it is with regard to the circular groove on connection or the partition housing.Circular groove links to each other with a path on the housing respectively.Separating and be communicated with synchronously of trough carried out.Make operation of oil pump be in the service intermittent state.
4. Y-60 type pressure gauge shows, this system adopts Y type table to show control hydraulic pressure in order better to save the energy, and pressure source is realized electricity---the liquid interlocking.Instrument adopts C type spring-tube type pressure element, has the advantages such as pressure-sensitive precision height, reliable, the anti-ambient vibration of working stability and medium pulse ability.
5. Double throttle check valve: this one-way valve is the valve that prevents the fluid reverse flow in the hydraulic system, also is referred to as to call safety check.One-way valve is valve arrangement, can block oil stream.Open locked loop.
Claims (4)
1. the control system of an atmospheric valve, it is characterized in that: comprise the oil pump, relief valve, solenoid directional control valve, the Double throttle check valve that are linked in sequence, be provided with hydraulic gage between described relief valve and solenoid directional control valve, described oil pump is connected with Oil pump electrical machinery, also comprise electric control box, described electric control box connects solenoid directional control valve and Oil pump electrical machinery.
2. the control system of a kind of atmospheric valve according to claim 1 is characterized in that: described oil pump employing high pressure hose connection atmospheric valve.
3. the control system of a kind of atmospheric valve according to claim 1 is characterized in that: described solenoid directional control valve employing 3-position 4-way 24V DC electromagnetic valve.
4. the control system of a kind of atmospheric valve according to claim 1, it is characterized in that: the circuit of described electric control box comprises power supply indicator, DC power supply, emergency stop push button, electromagnetic switch valve control unit, VCU, described DC power supply input point is connected with power supply indicator, the DC power supply connects the electromagnetic switch valve control unit, VCU, is provided with emergency stop push button between DC power supply and electromagnetic switch valve control unit, VCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320226686 CN203240061U (en) | 2013-04-28 | 2013-04-28 | Control system of emptying valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320226686 CN203240061U (en) | 2013-04-28 | 2013-04-28 | Control system of emptying valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203240061U true CN203240061U (en) | 2013-10-16 |
Family
ID=49317358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320226686 Expired - Lifetime CN203240061U (en) | 2013-04-28 | 2013-04-28 | Control system of emptying valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203240061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747513A (en) * | 2015-03-31 | 2015-07-01 | 国电大渡河流域水电开发有限公司龚嘴水力发电总厂 | Movable type oil pressure pump station device |
-
2013
- 2013-04-28 CN CN 201320226686 patent/CN203240061U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747513A (en) * | 2015-03-31 | 2015-07-01 | 国电大渡河流域水电开发有限公司龚嘴水力发电总厂 | Movable type oil pressure pump station device |
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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: 20131016 |
|
| CX01 | Expiry of patent term |