CN215172653U - Redundant hydraulic servo control system of turbo generator - Google Patents
Redundant hydraulic servo control system of turbo generator Download PDFInfo
- Publication number
- CN215172653U CN215172653U CN202121487631.2U CN202121487631U CN215172653U CN 215172653 U CN215172653 U CN 215172653U CN 202121487631 U CN202121487631 U CN 202121487631U CN 215172653 U CN215172653 U CN 215172653U
- Authority
- CN
- China
- Prior art keywords
- hydraulic servo
- servo control
- control device
- terminal board
- hydraulic
- 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.)
- Active
Links
Images
Landscapes
- Control Of Turbines (AREA)
Abstract
Redundant hydraulic servo control system of turbo generator. The opening and closing of the high-pressure main steam valve of the existing steam turbine are performed by each main steam valve corresponding to one hydraulic servo device, electronic components are likely to break down under the condition of long-term live loss, the main steam valve is out of control, and the safe and stable operation of a unit is seriously threatened. The utility model discloses the constitution includes: the control display system (1) is connected with a hydraulic servo control device A (2) and a hydraulic servo control device B (8) through cables respectively, the hydraulic servo control device A is connected with a hydraulic servo terminal board A (3) through a plug, the hydraulic servo terminal board A is connected with a coil A (10) and a displacement sensor A (4) through cables respectively, the hydraulic servo control device B is connected with a hydraulic servo terminal board B (7) through a plug, and the hydraulic servo terminal board B is connected with a coil B (11) and a displacement sensor B (6) through cables respectively. The invention is used for the hydraulic servo control system of the turbonator.
Description
Technical Field
The utility model relates to a power plant equipment control technical field, concretely relates to turbo generator hydraulic pressure servo control system.
Background
The opening and closing of a high-pressure main valve of a steam turbine of a power plant are controlled by hydraulic servo modules HSS03 and HSS13, each main valve corresponds to one hydraulic servo module, once a hydraulic servo sub-module fails, the main valve is out of control, self-closing occurs, the occurrence of a unit shutdown event is caused, and the safe and stable operation of the unit is seriously threatened;
in the prior art, the opening and closing of a high-pressure main throttle valve of a steam turbine are controlled by hydraulic servo modules, each main throttle valve corresponds to one hydraulic servo module, electronic components of the hydraulic servo modules are likely to break down under the condition of long-term live loss, and once the hydraulic servo sub modules break down during the running of a unit, the main throttle valves are out of control, so that the shutdown event of the unit is caused, and the safe and stable running of the unit is seriously threatened.
Disclosure of Invention
The utility model aims at providing a redundant hydraulic pressure servo control system of turbo generator, this structure adopt hydraulic pressure servo control device A and hydraulic pressure servo control device B, and valve of common control guarantees not to influence the operation of high pressure main throttle when single hydraulic pressure servo control device breaks down, prevents that high pressure main throttle is unexpected to be closed, has effectively guaranteed unit safety and stability's operation.
The above purpose is realized by the following technical scheme:
a redundant hydraulic servo control system of a steam turbine generator comprises the following components: the control display system is respectively connected with a hydraulic servo control device A and a hydraulic servo control device B through cables, the hydraulic servo control device A is connected with a hydraulic servo terminal board A through a plug, the hydraulic servo terminal board A is respectively connected with a coil A and a displacement sensor A through a cable, the hydraulic servo control device B is connected with a hydraulic servo terminal board B through a plug, and the hydraulic servo terminal board B is respectively connected with the coil B and the displacement sensor B through a cable.
The redundant hydraulic servo control system of the turbonator is characterized in that a displacement sensor A and a displacement sensor B are respectively arranged on a servo feedback device, and a coil A and a coil B are respectively arranged on two sides of a servo control valve.
The hydraulic servo control device A, the hydraulic servo terminal board A, the hydraulic servo control device B and the hydraulic servo terminal board B are all arranged in a field control equipment cabinet.
Has the advantages that:
1. the utility model relates to a redundant hydraulic pressure servo control system of turbo generator, this structure has solved opening and closing of prior art steam turbine high pressure main valve and has adopted every main valve to correspond a hydraulic pressure servo device, and electronic components is very likely to break down under the condition of long-term electrified loss, causes the disadvantage that the unit shut down the event and take place, specifically adopts the connected mode of hydraulic pressure servo control device A, hydraulic pressure servo control device B and other parts, has effectively guaranteed the safety of unit, steady operation.
2. The utility model discloses a two way instructions of valve are controlled jointly to hydraulic pressure servo control device A, hydraulic pressure servo control device B receive two way feedback signal to the demonstration page through control display system obtains the feedback condition directly perceived, facilitates the use, can realize the effective control of steam turbine valve.
3. The utility model discloses can guarantee that steam turbine high pressure main throttle, high, the middling pressure governing door action is normal, avoid leading to the valve to close because of the servo module trouble of hydraulic pressure to cause the unplanned occurence of failure of unit, guarantee the operation of steam turbine governing system safety and stability.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. the control display system comprises a control display system 2, hydraulic servo control devices A and 3, hydraulic servo terminal boards A and 4, displacement sensors A and 5, servo feedback devices 6, displacement sensors B and 7, hydraulic servo terminal boards B and 8, hydraulic servo control devices B and 9, servo control valves 10, coils A and 11 and coils B.
The specific implementation mode is as follows:
example 1:
a redundant hydraulic servo control system of a steam turbine generator comprises the following components: the control display system 1 is connected with a hydraulic servo control device A2 and a hydraulic servo control device B8 through cables, the hydraulic servo control device A is connected with a hydraulic servo terminal board A3 through a plug, the hydraulic servo terminal board A is connected with a coil A10 and a displacement sensor A4 through cables, the hydraulic servo control device B is connected with a hydraulic servo terminal board B7 through a plug, and the hydraulic servo terminal board B is connected with a coil B11 and a displacement sensor B6 through cables.
Example 2:
according to the redundant hydraulic servo control system of the steam turbine generator in the embodiment 1, the displacement sensor A and the displacement sensor B are respectively installed on the servo feedback device 5, and the coil A and the coil B are respectively installed on two sides of the servo control valve 9.
Example 3:
according to the redundant hydraulic servo control system of the steam turbine generator in the embodiment 1, the hydraulic servo control device A, the hydraulic servo terminal board A, the hydraulic servo control device B and the hydraulic servo terminal board B are all installed in a field control equipment cabinet.
The working principle of the redundant hydraulic servo control system of the turbonator is as follows:
the hydraulic servo control device A and the hydraulic servo control device B receive a valve opening or closing instruction sent by a control display system simultaneously, actual valve position feedback information is obtained through the respective displacement sensor A and the displacement sensor B respectively, one path of servo instruction signal is output to control a coil A and a coil B in a servo control valve (a steam inlet valve of a steam turbine) respectively through comparison, the two hydraulic servo control devices A and the hydraulic servo control device B work simultaneously, the two paths of coils work redundantly, one path of signal can be controlled, when one hydraulic servo control device fails and loses one path of output, the other hydraulic servo control device can continue to work, and normal operation of a unit cannot be influenced completely.
Claims (3)
1. A redundant hydraulic servo control system of a steam turbine generator comprises the following components: the control display system is characterized in that: the control display system is respectively connected with a hydraulic servo control device A and a hydraulic servo control device B through cables, the hydraulic servo control device A is connected with a hydraulic servo terminal board A through a plug, the hydraulic servo terminal board A is respectively connected with a coil A and a displacement sensor A through a cable, the hydraulic servo control device B is connected with a hydraulic servo terminal board B through a plug, and the hydraulic servo terminal board B is respectively connected with the coil B and the displacement sensor B through cables.
2. The redundant hydraulic servo control system of the steam turbine generator according to claim 1, wherein: the displacement sensor A and the displacement sensor B are respectively arranged on the servo feedback device, and the coil A and the coil B are respectively arranged on two sides of the servo control valve.
3. The redundant hydraulic servo control system of the steam turbine generator according to claim 2, wherein: the hydraulic servo control device A, the hydraulic servo terminal board A, the hydraulic servo control device B and the hydraulic servo terminal board B are all arranged in a field control equipment cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121487631.2U CN215172653U (en) | 2021-07-01 | 2021-07-01 | Redundant hydraulic servo control system of turbo generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121487631.2U CN215172653U (en) | 2021-07-01 | 2021-07-01 | Redundant hydraulic servo control system of turbo generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172653U true CN215172653U (en) | 2021-12-14 |
Family
ID=79382151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121487631.2U Active CN215172653U (en) | 2021-07-01 | 2021-07-01 | Redundant hydraulic servo control system of turbo generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172653U (en) |
-
2021
- 2021-07-01 CN CN202121487631.2U patent/CN215172653U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107676218B (en) | A kind of giant turbine governor master, which connects, follows fault judgment method | |
| CN102268497B (en) | Safety control method for TRT (Blast Furnace Top Gas Recovery Turbine Unit) fixed blade servo control system | |
| CN109681443B (en) | Rotation speed control system and method for steam-driven main feed pump of nuclear power station | |
| CN101074614A (en) | Digital redundant emergent protecting system of steam turbine | |
| CN102877896A (en) | Trip protection system of steam turbine in emergency situations | |
| CN215172653U (en) | Redundant hydraulic servo control system of turbo generator | |
| CN208858418U (en) | A kind of Protection System of Turbin | |
| CN203285496U (en) | Redundant PLC steam turbine protection system | |
| CN113345289A (en) | Training device and method for water turbine speed governor | |
| CN113236378A (en) | Redundancy control system for regulating steam valve of steam turbine of water supply pump | |
| CN110262285B (en) | Universal nuclear turbine control system simulator | |
| CN105022384A (en) | LVRT (Low Voltage Ride Through) closed-loop simulation test method of controller of high-voltage frequency converter of thermal plant | |
| CN109578191B (en) | Intelligent fault diagnosis and processing method for main connection, main distribution and proportional valve hydraulic following system of speed regulator | |
| CN112524320A (en) | Hydraulic butterfly valve control system | |
| CN106452203A (en) | Reliable drive control system, and control method thereof | |
| CN215369958U (en) | Redundant servo control system of steam turbine valve | |
| CN201786547U (en) | Protection system for hydro-power generating unit | |
| CN203906017U (en) | Emergency intercept device for isolating test signal | |
| CN202900331U (en) | Tripping protection system of steam turbine in emergency situations | |
| CN113309660B (en) | Intelligent sectional closing control system and method for speed regulator | |
| CN113346610B (en) | Redundant topological structure of power supply system | |
| CN107544881A (en) | One kind is used for emulating server input voltage exception DEBUG cards circuit and method | |
| CN201714433U (en) | Novel combined cycle steam turbine protecting system | |
| CN207093152U (en) | A kind of back pressure type steam turbine generating set system | |
| CN205936957U (en) | Governor of hydraulic turbine emergency shut down device based on double magnet valve and interstage valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |