CN204283510U - A kind of steam turbine electro-control converter - Google Patents
A kind of steam turbine electro-control converter Download PDFInfo
- Publication number
- CN204283510U CN204283510U CN201420696233.5U CN201420696233U CN204283510U CN 204283510 U CN204283510 U CN 204283510U CN 201420696233 U CN201420696233 U CN 201420696233U CN 204283510 U CN204283510 U CN 204283510U
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- oil
- oil pipe
- passageway
- safety
- control converter
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Abstract
The utility model discloses a kind of steam turbine electro-control converter of field of generating equipment, comprise pressure oil pipe, safety oil passageway, electricity adjusts oil pipe and return tube, described electricity adjusts oil pipe to be communicated with the relay of oil engine, described electricity is adjusted between oil pipe and described safety oil passageway and is provided with a unloading valve, first segment discharge orifice is provided with between described pressure oil pipe and described safety oil passageway, described pressure oil pipe and described electricity are adjusted between oil pipe and are provided with second section discharge orifice, the oil return chamber of described return tube and described oil engine, two solenoid valves parallel with one another are provided with between described safety oil passageway and described return tube.Its technique effect is: matched with unloading valve by the dual-coil electromagnetic valve arranging redundancy, any one solenoid valve action, and oil engine can be closed, and shortens the oil circuit of electro-control converter, accelerates the speed of response of electro-control converter, oil engine is closed fast stable.
Description
Technical field
The utility model relates to a kind of steam turbine electro-control converter of field of generating equipment.
Background technique
Electro-control converter is the core parts in steam turbine, gas turbine, water turbine electrohydaulic speed governor system, is a kind of conversion element that automatically controlled signal can be converted to pro rata hydraulic pressure or mechanical displacement output.Accurate positioning control automatically can be realized to the actuator of steam turbine, gas turbine or water turbine electrohydraulic governor (oil engine or steam inlet valve, fuel regulator valve, servomotor or inlet valve etc.) by it.
Electro-control converter has in the past filled a switching valve, tap into a road Safety oil to switching valve from the female pipe of Safety oil, switching valve is made up of piston and spring, and when Safety oil decompression, switching valve venting electricity adjusts oil pressure, thus closes oil engine.
The defect of such design is: the oil circuit of steam turbine electro-control converter is long and complicated, and cause the reaction of electro-control converter slowly, the quick closing valve poor performance of oil engine, when switching valve lost efficacy, during Safety oil decompression, oil engine cannot be closed, and affected the safe operation of steam turbine.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and provide a kind of steam turbine electro-control converter, its oil circuit is short, is swift in response, and oil engine is closed fast stable.
A kind of technological scheme realizing above-mentioned purpose is: a kind of steam turbine electro-control converter, comprise pressure oil pipe, safety oil passageway, electricity adjusts oil pipe and return tube, described electricity adjusts oil pipe to be communicated with the relay of oil engine, described electricity is adjusted between oil pipe and described safety oil passageway and is provided with a unloading valve, first segment discharge orifice is provided with between described pressure oil pipe and described safety oil passageway, described pressure oil pipe and described electricity are adjusted between oil pipe and are provided with second section discharge orifice, the oil return chamber of described return tube and described oil engine, two solenoid valves parallel with one another are provided with between described safety oil passageway and described return tube.
Further, described electricity adjusts the top of oil pipe, and be provided with a butterfly valve, described butterfly valve is connected to the bottom of a lever, the top of described lever is connected with a spring and a torque motor, and described butterfly valve, described spring and described torque motor are all positioned at the same side of the fulcrum of described lever.
Have employed the technological scheme of steam turbine electro-control converter of the present utility model, namely one comprises pressure oil pipe, safety oil passageway, electricity adjusts oil pipe and return tube, described electricity adjusts oil pipe to be communicated with the relay of oil engine, described electricity is adjusted between oil pipe and described safety oil passageway and is provided with a unloading valve, first segment discharge orifice is provided with between described pressure oil pipe and described safety oil passageway, described pressure oil pipe and described electricity are adjusted between oil pipe and are provided with second section discharge orifice, the oil return chamber of described return tube and described oil engine, the technological scheme of the steam turbine electro-control converter of two solenoid valves parallel with one another is provided with between described safety oil passageway and described return tube.Its technique effect is: matched with unloading valve by the dual-coil electromagnetic valve arranging redundancy, and any one solenoid valve action oil engine can be closed, and shortens the oil circuit of electro-control converter, accelerates the speed of response of electro-control converter, oil engine is closed fast stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of steam turbine electro-control converter of the present utility model.
Embodiment
Refer to Fig. 1, inventor of the present utility model, in order to understand the technical solution of the utility model better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Refer to Fig. 1, a kind of steam turbine electro-control converter of the present utility model, comprise pressure oil pipe 1, safety oil passageway 2, electricity adjusts oil pipe 3 and return tube 5, electricity adjusts oil pipe 3 to be communicated with relay 101 on oil engine 10, and electricity is adjusted between oil pipe 3 and safety oil passageway 2 and is provided with a unloading valve 4, is provided with first segment discharge orifice 21 between pressure oil pipe 1 and safety oil passageway 2, pressure oil pipe 1 and electricity are adjusted between oil pipe 3 and are provided with second section discharge orifice 31, and return tube 5 is communicated with the oil return chamber 102 of oil engine 10.
The first solenoid valve 51 and the second solenoid valve 52 be arranged in parallel is provided with between safety oil passageway 2 and return tube 5.
Electricity adjusts the top of oil pipe 3, and be provided with a butterfly valve 6, butterfly valve 6 is connected to the bottom of a lever 7, and the top of lever 7 is connected with and a spring 8 and a torque motor 9, and spring 8 is in the state of compression.Butterfly valve 6, spring 8 and torque motor 9 are all positioned at the same side of the fulcrum 71 of lever 7.
When steam turbine normally works, the first solenoid valve 51 and the second solenoid valve 52 are closed, and lever 7 and butterfly valve 6 press down by torque motor 9, control the pressure that electricity adjusts oil pipe 3, and electricity adjusts the pressure oil in oil pipe 3 to flow to the relay 101 of oil engine 10.The pilot valve of oil engine 10 is opened, and oil engine is opened or closed, and drives the valve corresponding sports of steam turbine.
There is hypervelocity when steam turbine or shut down suddenly; then in the first solenoid valve 51 and the second solenoid valve 52, any one or two solenoid valves start; safety oil passageway 2 is communicated with return tube 5, and the pressure oil in safety oil passageway 2 is entered in return tube 5 by any one in the first solenoid valve 51 or the second solenoid valve 52 or two solenoid valves.Meanwhile, unloading valve 4 action, electricity adjusts oil pipe 3 to communicate with return tube 5, and electricity adjusts the rapid pressure release of oil pressure, oil engine quick closedown.Now no matter where torque motor 9 is in.Oil engine is closed, the valve closing of steam turbine, thus ensures the safe operation of steam turbine.
A kind of steam turbine electro-control converter of the present utility model, the oil circuit that pressure oil pipe 1, safety oil passageway 2, electricity adjust oil pipe 3, unloading valve 4, return tube 5 and the first solenoid valve 51 and the second solenoid valve 52 to form is integrated in its controll block, and communicate with oil engine, a kind of steam turbine electro-control converter of the present utility model, oil circuit is short, is swift in response, and oil engine is closed fast stable, the quick closing valve performance of oil engine is improved, for the optimal design of the security system of steam turbine is laid a good foundation.
Simultaneously; a kind of steam turbine electro-control converter of the present utility model; be provided with the dual-coil electromagnetic valve of redundancy; any one solenoid valve action in first solenoid valve 51 or the second solenoid valve 52; oil engine can be made to close; the Safety performance of steam turbine improves; a kind of steam turbine oil engine of the present utility model simultaneously; its first solenoid valve 51 and the second solenoid valve 52 all have the function of OPC (turbine over) or AST (halt turbines is protected automatically), female pipe security function are distributed on each single oil engine.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.
Claims (2)
1. a steam turbine electro-control converter, comprise pressure oil pipe, safety oil passageway, electricity tune oil pipe and return tube, described electricity adjusts oil pipe to be communicated with the relay of oil engine, described electricity is adjusted between oil pipe and described safety oil passageway and is provided with a unloading valve, first segment discharge orifice is provided with between described pressure oil pipe and described safety oil passageway, described pressure oil pipe and described electricity are adjusted between oil pipe and are provided with second section discharge orifice, and the oil return chamber of described return tube and described oil engine, is characterized in that:
Two solenoid valves parallel with one another are provided with between described safety oil passageway and described return tube.
2. a kind of steam turbine electro-control converter according to claim 1, it is characterized in that: described electricity adjusts the top of oil pipe, be provided with a butterfly valve, described butterfly valve is connected to the bottom of a lever, the top of described lever is connected with a spring and a torque motor, and described butterfly valve, described spring and described torque motor are all positioned at the same side of the fulcrum of described lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696233.5U CN204283510U (en) | 2014-11-19 | 2014-11-19 | A kind of steam turbine electro-control converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696233.5U CN204283510U (en) | 2014-11-19 | 2014-11-19 | A kind of steam turbine electro-control converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283510U true CN204283510U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420696233.5U Active CN204283510U (en) | 2014-11-19 | 2014-11-19 | A kind of steam turbine electro-control converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN204283510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104884A (en) * | 2017-12-13 | 2018-06-01 | 中国船舶重工集团公司第七0四研究所 | The pure mechanical liquid type OPC systems of turbine regulation and control system |
-
2014
- 2014-11-19 CN CN201420696233.5U patent/CN204283510U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104884A (en) * | 2017-12-13 | 2018-06-01 | 中国船舶重工集团公司第七0四研究所 | The pure mechanical liquid type OPC systems of turbine regulation and control system |
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| GR01 | Patent grant |