CN205841927U - A kind of emergency cut-off valve control system - Google Patents
A kind of emergency cut-off valve control system Download PDFInfo
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- CN205841927U CN205841927U CN201620558185.2U CN201620558185U CN205841927U CN 205841927 U CN205841927 U CN 205841927U CN 201620558185 U CN201620558185 U CN 201620558185U CN 205841927 U CN205841927 U CN 205841927U
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- valve
- electromagnetic valve
- gas
- electromagnetic
- quick action
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Abstract
The utility model discloses a kind of emergency cut-off valve control system, it is arranged on before quick action emergency valve including one, for controlling the first electromagnetic valve of source of the gas, and second electromagnetic valve being located between source of the gas and the first electromagnetic valve, the air inlet of described first and second electromagnetic valves connects with control source of the gas respectively, the gas outlet of the first electromagnetic valve connects with the cylinder of quick action emergency valve, and the gas outlet of the second electromagnetic valve connects with the air vent of the first electromagnetic valve.This utility model is in properly functioning period, two electromagnetic valves are the most charged, front station quick action emergency valve controls loop conducting, can ensure that when any electromagnetic valve dead electricity combustion gas front station emergency cut-off controls loop and is not affected, thus prevent the non-generation stopping accident caused due to front station quick action emergency valve dead electricity.
Description
Technical field
This utility model relates to electricity generation system, particularly relates to a kind of gas turbine front station emergency cut-off valve control system.
Background technology
During the gas turbine operation in power plant, an electromagnetic valve is used to control quick action emergency valve.Time properly functioning, electricity
Magnet valve is charged, and quick action emergency valve valve is opened.Once there is electromagnetic valve or connection circuit fault, dead electricity is closed by electromagnetic valve
Close quick action emergency valve, cause unit unplanned outage.
Utility model content
The purpose of this utility model is the problem existed for above-mentioned prior art, it is provided that the combustion gas front station of a kind of improvement
Emergency cut-off valve control system, this system can improve combustion engine reliability of operation further.
The emergency cut-off valve control system that the utility model proposes includes that one is arranged on before quick action emergency valve, is used for controlling
First electromagnetic valve of source of the gas processed, and second electromagnetic valve being located between source of the gas and the first electromagnetic valve, described first and second
The air inlet of electromagnetic valve connects with control source of the gas respectively, and the gas outlet of the first electromagnetic valve connects with the cylinder of quick action emergency valve, the
The gas outlet of two electromagnetic valves connects with the air vent of the first electromagnetic valve.
Described first and second electromagnetic valves use two-bit triplet electromagnetic valve.
Compared with prior art, this utility model has the advantages that
In properly functioning period, two electromagnetic valves are the most charged, and front station quick action emergency valve controls loop conducting, at arbitrarily electricity
Can ensure that during magnet valve dead electricity that combustion gas front station emergency cut-off controls loop and is not affected, thus prevent due to front station
Quick action emergency valve dead electricity and the non-generation stopping accident that causes.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art；
Fig. 2 is schematic diagram of the present utility model.
Detailed description of the invention
With embodiment, utility model is described in detail below in conjunction with the accompanying drawings.
Fig. 1 shows a kind of existing combustion gas front station quick action emergency valve electromagnetic valve controlling system, produces for GE company
PG9171E type gas turbine.This system controls quick action emergency valve and controls source of the gas, and when electromagnetic valve is charged, compressed air enters urgent
Stop valve cylinder, quick action emergency valve is opened.It is obvious that when this electromagnetic valve exception dead electricity, emergency shutdown valve is closed, combustion engine fuel
Disappear, non-stopping occurs.
In order to solve owing to single electromagnetic valve controls the problem caused that lost efficacy, this utility model is retaining original equipment as far as possible
On the basis of, for the abnormal situation about closing of single electromagnetic valve, increase an electromagnetic valve, use dual redundant electromagnetic valve to control urgent
Stop valve, the problem causing unit unplanned outage due to solenoid valve failure with solution.
The emergency cut-off valve control system that the utility model proposes includes that being arranged on emergency shutdown valve arranges two two three
Three-way electromagnetic valve, each two-bit triplet electromagnetic valve passes through gas source pipe UNICOM, ultimately forms quick action emergency valve source of the gas control piper, described
Control piper be made up of first electromagnetic valve the 1, second electromagnetic valve 2 being sequentially connected with and compressed air line.
As in figure 2 it is shown, the emergency cut-off valve control system that the utility model proposes includes: one is arranged on quick action emergency valve
Before 4, for controlling the first electromagnetic valve 1 of source of the gas 3, and second electromagnetic valve 2 being located between source of the gas and the first electromagnetic valve,
First and second electromagnetic valves use two-bit triplet electromagnetic valve, the air inlet 13 of the first electromagnetic valve and the air inlet 23 of the second electromagnetic valve
Connecting with control source of the gas 3 respectively, the gas outlet 12 of the first electromagnetic valve connects with the cylinder of quick action emergency valve 4, the second electromagnetic valve
Gas outlet 22 connects with the air vent 11 of the first electromagnetic valve.
Operation principle of the present utility model is as follows:
Electromagnetic valve in emergency cut-off valve control system uses two-position three way magnetic valve, and also referred to as one-in-and-two-out electromagnetic valve, has
Air inlet 13,23, gas outlet 12,22,11,21 3 interfaces of air vent, its working condition has inlet and outlet connection and goes out
Mouth connects two kinds of states with air vent.
When unit normally works, two electromagnetic valves are the most charged, and air inlet 13 and the gas outlet 12 of the first electromagnetic valve 1 turn on,
Air inlet 23 and the gas outlet 22 of the second electromagnetic valve 2 turn on, and control source of the gas and are entered quick action emergency valve by the passage of the first electromagnetic valve 1
Cylinder, because air vent 11 and gas outlet 12 passage of the first electromagnetic valve 1 disconnect, it can be ensured that stop valve is opened in cylinder pressurize.
Unit is properly functioning, and the second electromagnetic valve 2 is working properly, the first electromagnetic valve 1 operation irregularity dead electricity, the i.e. second electromagnetic valve
2 charged, the first electromagnetic valve 1 dead electricity: the gas outlet 22 of the second electromagnetic valve 2 and the air vent 13 of the first electromagnetic valve turn on, the first electricity
Air vent 11 and the gas outlet 12 of magnet valve 1 turn on, and control source of the gas by the air inlet 23 of the second electromagnetic valve 2 and gas outlet 22 passage,
The air vent 11 of the first electromagnetic valve 1 and gas outlet 12 passage enter stop valve cylinder, it can be ensured that stop valve is opened in cylinder pressurize.
Unit is properly functioning, the second electromagnetic valve 2 operation irregularity dead electricity, and the first electromagnetic valve 1 is working properly, the i.e. second electromagnetic valve
Dead electricity, the first electromagnetic valve are charged: the air inlet 23 of the second electromagnetic valve 2 and gas outlet 22 passage cut off, air vent 21 and gas outlet
22 conductings, the air inlet 13 of the first electromagnetic valve 1 and gas outlet 12 channel conductive, control source of the gas by the air inlet of the first electromagnetic valve 1
13 and gas outlet 12 passage enter stop valve cylinder, because of the gas outlet 12 of the first electromagnetic valve 1 and the disconnection of air vent 11 passage, can be true
Protect cylinder pressurize and open stop valve.
During compressor emergency shutdown, the second electromagnetic valve 2 dead electricity, the first electromagnetic valve 1 dead electricity: the air inlet 23 of the second electromagnetic valve and giving vent to anger
Mouth 22 passages cut off, and gas outlet 22 and air vent 21 turn on, and the air inlet 13 of the first electromagnetic valve 1 and gas outlet 12 passage cut off,
Gas outlet 12 and air vent 11 turn on, the pressed gas of cylinder through the gas outlet 12 of the first electromagnetic valve 1 and air vent 11 passage and
The gas outlet 22 of the second electromagnetic valve 2 and air vent 21 passage pressure release, close stop valve, it can be ensured that safe shutdown.
This utility model, on the basis of emergency cut-off magnetic valve control system only one of which two-bit triplet electromagnetic valve, is set up
One two-bit triplet electromagnetic valve and control piper, control source of the gas as gas emergency shut-off valve instrument air, jointly provide combustion gas
Quick action emergency valve controls source of the gas, it is therefore prevented that the non-generation stopping accident caused due to front station quick action emergency valve dead electricity.
Above-described embodiment is merely to illustrate the detailed description of the invention of the present invention.It should be pointed out that, general for this area
For logical technical staff, without departing from the inventive concept of the premise, it is also possible to make some deformation and change, these deformation and
Change all should belong to protection scope of the present invention.
Claims (2)
1. an emergency cut-off valve control system, is arranged on before quick action emergency valve including one, for controlling the first of source of the gas
Electromagnetic valve, it is characterised in that also include second electromagnetic valve being located between source of the gas and the first electromagnetic valve, described first and
The air inlet of two electromagnetic valves connects with control source of the gas respectively, and the gas outlet of the first electromagnetic valve connects with the cylinder of quick action emergency valve,
The gas outlet of the second electromagnetic valve connects with the air vent of the first electromagnetic valve.
2. emergency cut-off valve control system as claimed in claim 1, it is characterised in that: described first and second electromagnetic valves use
Two-bit triplet electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558185.2U CN205841927U (en) | 2016-06-12 | 2016-06-12 | A kind of emergency cut-off valve control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558185.2U CN205841927U (en) | 2016-06-12 | 2016-06-12 | A kind of emergency cut-off valve control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841927U true CN205841927U (en) | 2016-12-28 |
Family
ID=58153021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620558185.2U Active CN205841927U (en) | 2016-06-12 | 2016-06-12 | A kind of emergency cut-off valve control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205841927U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269896A (en) * | 2017-07-03 | 2017-10-20 | 泰安市特种设备检验研究院 | A kind of quick action emergency valve and its application method |
| CN107300123A (en) * | 2017-08-17 | 2017-10-27 | 丹阳市方蓝气体设备有限公司 | A kind of gases at high pressure charging system |
| CN110953211A (en) * | 2019-11-21 | 2020-04-03 | 浙江浙能技术研究院有限公司 | Control device and method for redundant design of double electromagnetic valves |
-
2016
- 2016-06-12 CN CN201620558185.2U patent/CN205841927U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269896A (en) * | 2017-07-03 | 2017-10-20 | 泰安市特种设备检验研究院 | A kind of quick action emergency valve and its application method |
| CN107300123A (en) * | 2017-08-17 | 2017-10-27 | 丹阳市方蓝气体设备有限公司 | A kind of gases at high pressure charging system |
| CN110953211A (en) * | 2019-11-21 | 2020-04-03 | 浙江浙能技术研究院有限公司 | Control device and method for redundant design of double electromagnetic valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |