CN207554121U - Steam turbine binary channels test monitoring device - Google Patents
Steam turbine binary channels test monitoring device Download PDFInfo
- Publication number
- CN207554121U CN207554121U CN201721606400.2U CN201721606400U CN207554121U CN 207554121 U CN207554121 U CN 207554121U CN 201721606400 U CN201721606400 U CN 201721606400U CN 207554121 U CN207554121 U CN 207554121U
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- China
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- main body
- steam turbine
- monitoring main
- monitoring device
- solenoid valve
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of steam turbine binary channels test monitoring device, including monitoring main body, it is characterized in that：Two pilot passageway are arranged in monitoring main body, each pilot passageway includes the medium inlet, two media outlets and the solenoid valve that are located in monitoring main body, the medium inlet is connected by the first inner passage being located in monitoring main body with the P mouths of the solenoid valve, and two media outlets are connected respectively by the second inner passage being located in monitoring main body with the A mouths of the solenoid valve；Two media outlets of each pilot passageway are connected with pressure switch by pipeline respectively, for monitoring the pressure medium of acquisition in real time.Advantageous effect is：The safety for improving steam turbine operation of high degree, reliability；The independence of pressure switch sampling line is realized, greatly enhances the reliability of protection；Reduce the malfunction rate of unit.
Description
Technical field
The utility model is related to a kind of test monitoring device, more particularly to a kind of steam turbine binary channels test monitoring device.
Background technology
At present, power plant steam turbine needs to be passed through three kinds of lubricating oil, EH oil, vacuum media at work, to ensure steam turbine
Trouble free service, need in real time monitor lubricating oil, EH oil, three kinds of media of vacuum pressure value, to improve steam turbine safety, can
There is good result by property, reduction false protection rate.
Steam turbine is mostly monitored using traditional single channel test block in power plant at present, conventional one-channel test block
It has the following problems：
1st, single channel test block only samples all the way, which will directly cause when sampling line has leakage situation
Decline channel pressure, test block pressure at both sides switch motion causes unit tripping to act.
2nd, each channel only send to two pressure switches corresponding to channel, according in thermal control professional code all the way by sampling
Requirement, thermal control main protection sampling must individually sample.
3rd, test block oil extraction or exhaust outlet traditional design are generally directly accessed oil returning tube or directly to sky, this structure is being tried
In the case of testing block internal leakage, it will directly release test block internal pressure, cause pressure switch malfunction.
Utility model content
Technical problem to be solved in the utility model is to provide for a kind of safety that can improve steam turbine and reliable
Property, and reduce the steam turbine binary channels test monitoring device of false protection rate.
To solve the above problems, the utility model adopts the following technical solution：
Including monitoring main body, two examinations are arranged in monitoring main body for a kind of steam turbine binary channels test monitoring device
Channel is tested, each pilot passageway includes the medium inlet, two media outlets and the solenoid valve that are located in monitoring main body,
The medium inlet is connected by the first inner passage being located in monitoring main body with the P mouths of the solenoid valve, and two media go out
Mouth is connected respectively by the second inner passage being located in monitoring main body with the A mouths of the solenoid valve；
Two media outlets of each pilot passageway are connected with pressure switch by pipeline respectively, for monitoring acquisition in real time
Pressure medium.
As further preferred, be additionally provided with a floss hole in monitoring main body, the floss hole respectively by third inside
Channel is connected with the B mouths of the solenoid valve of two pilot passageway.
As further preferred, it is connected with discharge pipe at the floss hole in monitoring main body and is installed on discharge pipe
There is isolating valve, the completely isolated of the test monitoring device and turbo-engine lube, EH oil systems or the external world is used to implement, so as to carry
High unit reliability reduces unit malfunction rate.
As further preferred, intake line is connected separately at medium inlet and is respectively equipped on intake line and is cut
Only valve.
As further preferred, pressure gauge is connected separately on the second inner passage, in real-time display system
Pressure medium.
The beneficial effects of the utility model are：
1st, due to being arranged with two pilot passageway in monitoring main body, each pilot passageway correspondence can be made to sample all the way
Medium, can make each pilot passageway of the experimental rig can individually be isolated in this way, and another pilot passageway keeps normal
Defencive function；It to be leaked even if wherein there are one pilot passageway samplings, only can act the pressure switch corresponding to it, it is single
Lateral pressure switch motion does not interfere with the normal operation of steam turbine, the safety for improving steam turbine operation of high degree, can
By property.
2nd, since each pilot passageway includes a medium inlet being located in monitoring main body, two media outlets and one
Solenoid valve, two media outlets are connected respectively by the second inner passage being located in monitoring main body with the A mouths of the solenoid valve,
Two media outlets of each pilot passageway are connected with pressure switch by pipeline respectively, it is achieved that pressure switch probe tube
The independence on road greatly enhances the reliability of protection；The malfunction rate of unit is reduced to a certain degree.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：Monitor main body 1, the second inner passage 2, pressure switch 3, pressure gauge 4, third inner passage 5, discharge pipe
6, isolating valve 7, solenoid valve 8, the first inner passage 9, intake line 10, shut-off valve 11.
Specific embodiment
As shown in Figure 1, the utility model is related to a kind of steam turbine binary channels test monitoring device, including one monitoring master
Body 1, is arranged with two pilot passageway in monitoring main body 1, and each pilot passageway includes Jie being located in monitoring main body 1
Matter entrance P1 or P2, two media outlet A1 and A2 or B1 and B2 and solenoid valve 8, the solenoid valve 8 are two-position three way electricity
Magnet valve, the medium inlet P1 or P2 pass through the first inner passage 9 being located in monitoring main body 1 and the P of the solenoid valve 8 respectively
Mouthful connection, two media outlet A1 and A2 or B1 and B2 respectively by be located at monitoring main body 1 on the second inner passage 2 with it is described
A mouthfuls of connections of a working port of solenoid valve 8.Two media outlets of each pilot passageway are connected with pressure by pipeline respectively
Switch 3, for monitoring the pressure medium of acquisition in real time.
A floss hole T is additionally provided in monitoring main body 1, floss hole T is tried respectively by third inner passage 5 and two
Test the B mouths connection of the solenoid valve 8 of channel.
Discharge pipe 6 is connected at floss hole T in monitoring main body 1 and isolating valve 7 is installed on discharge pipe 6,
The completely isolated of the test monitoring device and turbo-engine lube, EH oil systems or the external world is used to implement, it can so as to improve unit
By property, unit malfunction rate is reduced.
Intake line 10 is connected separately at medium inlet and shut-off valve 11 is separately installed on intake line 10, with
Convenient for controlling the input of medium.
Pressure gauge 4 is connected separately on the second inner passage 2, for the pressure medium in real-time display system.
In use, by the steam turbine binary channels test monitoring device by intake line 10 respectively with the profit of power plant steam turbine
Oil system or EH oil systems or vacuum system pipeline connection, the medium in system pass sequentially through corresponding shut-off valve 11 and enter prison
It surveys in main body 1, then entered in corresponding pressure switch 3 by solenoid valve 8.When two media for connecting each pilot passageway go out
It is each in the pressure switch 3 of mouth to be triggered due to system media is revealed there are one pressure switch 3, pressure is collected by control system and is opened
Steam turbine hard stop is controlled after closing 3 trigger signal.When the pressure for two media outlets for connecting one of pilot passageway
3 switch of switch triggers due to pipeline medium is revealed, and the pressure switch 3 for connecting two media outlets of another pilot passageway does not have
When having triggering, steam turbine is not shut down.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modification is easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
Specific details and legend shown and described herein are not limited to novel.
Claims (5)
1. a kind of steam turbine binary channels test monitoring device, including monitoring main body, it is characterized in that：It is arranged in monitoring main body
Two pilot passageway, each pilot passageway include a medium inlet being located in monitoring main body, two media outlets and one
Solenoid valve, the medium inlet are connected by the first inner passage being located in monitoring main body with the P mouths of the solenoid valve, two
Media outlet is connected respectively by the second inner passage being located in monitoring main body with the A mouths of the solenoid valve；
Two media outlets of each pilot passageway are connected with pressure switch by pipeline respectively, for monitoring Jie of acquisition in real time
Matter pressure.
2. steam turbine binary channels test monitoring device according to claim 1, it is characterized in that：It is additionally provided in monitoring main body
One floss hole, the floss hole are connected respectively by third inner passage with the B mouths of the solenoid valve of two pilot passageway.
3. steam turbine binary channels test monitoring device according to claim 2, it is characterized in that：Discharge in monitoring main body
Discharge pipe is connected at mouthful and isolating valve is installed on discharge pipe, is used to implement the test monitoring device and is moistened with steam turbine
Lubricating oil, EH oil systems or the external world it is completely isolated, so as to improve unit reliability, reduce unit malfunction rate.
4. steam turbine binary channels test monitoring device according to claim 1, it is characterized in that：Connect respectively at medium inlet
It is connected to intake line and shut-off valve is respectively equipped on intake line.
5. steam turbine binary channels test monitoring device according to claim 1, it is characterized in that：Divide on the second inner passage
Pressure gauge is not connected with, for the pressure medium in real-time display system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721606400.2U CN207554121U (en) | 2017-11-27 | 2017-11-27 | Steam turbine binary channels test monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721606400.2U CN207554121U (en) | 2017-11-27 | 2017-11-27 | Steam turbine binary channels test monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554121U true CN207554121U (en) | 2018-06-29 |
Family
ID=62677506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721606400.2U Expired - Fee Related CN207554121U (en) | 2017-11-27 | 2017-11-27 | Steam turbine binary channels test monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554121U (en) |
-
2017
- 2017-11-27 CN CN201721606400.2U patent/CN207554121U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20211127 |