CN211819526U - Main protection test valve block of steam turbine - Google Patents
Main protection test valve block of steam turbine Download PDFInfo
- Publication number
- CN211819526U CN211819526U CN202020542613.9U CN202020542613U CN211819526U CN 211819526 U CN211819526 U CN 211819526U CN 202020542613 U CN202020542613 U CN 202020542613U CN 211819526 U CN211819526 U CN 211819526U
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- CN
- China
- Prior art keywords
- steam turbine
- test valve
- main protection
- pressure
- valve block
- 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.)
- Expired - Fee Related
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Abstract
Main protection test valve block of steam turbine. Current ETS test valve blocks are all single point sampling physically. The utility model discloses the constitution includes: two pressure oil inlet pipes (6) are communicated with the oil return pipe (1) through a test solenoid valve (2), each pressure oil inlet pipe is communicated with an oil outlet channel (4), and a pressure switch (5) is installed on each oil outlet channel. The utility model is used for steam turbine owner protects test valve piece.
Description
The technical field is as follows:
the utility model relates to a steam turbine main protection test valve piece.
Background art:
the ETS test component is used for sampling and measuring important trip instructions of the steam turbine generator unit, the accuracy and the stability of the ETS test component directly relate to the running safety of the unit, the existing ETS test valve block is physically sampled in a single point and does not meet the requirement that twenty-five counter measures for the safe running of the unit need to adopt an independent sampling point, and therefore the ETS test valve block is necessary to be upgraded and modified for improving the running safety of the unit.
The utility model has the following contents:
the utility model aims at providing a steam turbine owner protects test valve piece.
The above purpose is realized by the following technical scheme:
the utility model provides a steam turbine main protection test valve piece, this steam turbine main protection test valve piece includes that two way pressure oil advance oil pipe, two ways pressure oil advance oil pipe respectively through experimental solenoid valve intercommunication on returning oil pipe, every pressure oil advance oil pipe intercommunication have the passageway of producing oil, the passageway of producing oil on install pressure switch.
The main protection test valve block of the steam turbine is characterized in that a stop valve is installed on the pressure oil inlet pipe.
The main protection test valve block of the steam turbine, the pressure oil inlet pipe is provided with a pressure gauge.
Has the advantages that:
1. the utility model discloses a steam turbine ETS online test valve piece is two tunnel samples, and the reliability will improve greatly, avoids blockking up because of the sample of the same kind and leads to four to get two protection maloperations, refuses to move.
The utility model discloses will continue to keep eh oil, lubricating oil, the vacuum on-line test function of former design after the transformation, ensure the accuracy and the reliability of protection action.
Description of the drawings:
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic structural diagram of the present invention;
in the figure: 1. an oil return pipe; 2. testing the electromagnetic valve; 3. a pressure gauge; 4. an oil outlet channel; 5. a pressure switch; 6. a pressure oil inlet pipe; 7. and a stop valve.
The specific implementation mode is as follows:
example 1:
the utility model provides a steam turbine main protection test valve piece, this steam turbine main protection test valve piece includes that two way pressure oil advance oil pipe 6, two ways pressure oil advance oil pipe respectively through 2 intercommunications of experimental solenoid valve on returning oil pipe 1, every pressure oil advance oil pipe intercommunication have oil outlet channel 4, oil outlet channel on install pressure switch 5.
When the pressure oil enters through the pressure oil inlet switch during operation, the test battery valve is closed, the pressure oil is discharged through the oil outlet channel, the two oil outlet channels can avoid the false operation and the false operation of four-out-two protection caused by one-way sampling blockage, the pressure gauge on the pressure oil inlet pipe monitors the pressure, the pressure switch on the oil outlet channel is closed when the oil pressure is reduced, and the other pressure oil inlet channel normally feeds oil, so that the shutdown condition can not be caused.
Example 2:
according to the main protection test valve block of the steam turbine in embodiment 1, the pressure oil inlet pipe is provided with the stop valve 7.
Example 3:
according to embodiment 1 or 2, the turbine main protection test valve block, pressure oil advance and install manometer 3 on the oil pipe.
Claims (3)
1. The utility model provides a steam turbine owner protects test valve piece, characterized by: the main protection test valve block of the steam turbine comprises two pressure oil inlet pipes, wherein the two pressure oil inlet pipes are respectively communicated with an oil return pipe through a test electromagnetic valve, each pressure oil inlet pipe is communicated with an oil outlet channel, and a pressure switch is installed on the oil outlet channel.
2. The steam turbine main protection test valve block of claim 1, wherein: and a stop valve is arranged on the pressure oil inlet pipe.
3. The steam turbine main protection test valve block according to claim 1 or 2, characterized in that: and a pressure gauge is arranged on the pressure oil inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020542613.9U CN211819526U (en) | 2020-04-14 | 2020-04-14 | Main protection test valve block of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020542613.9U CN211819526U (en) | 2020-04-14 | 2020-04-14 | Main protection test valve block of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211819526U true CN211819526U (en) | 2020-10-30 |
Family
ID=73142029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020542613.9U Expired - Fee Related CN211819526U (en) | 2020-04-14 | 2020-04-14 | Main protection test valve block of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211819526U (en) |
-
2020
- 2020-04-14 CN CN202020542613.9U patent/CN211819526U/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: 20201030 Termination date: 20210414 |