CN206397548U - A kind of steam turbine stator cooling water temperature automatic control system - Google Patents
A kind of steam turbine stator cooling water temperature automatic control system Download PDFInfo
- Publication number
- CN206397548U CN206397548U CN201621466749.6U CN201621466749U CN206397548U CN 206397548 U CN206397548 U CN 206397548U CN 201621466749 U CN201621466749 U CN 201621466749U CN 206397548 U CN206397548 U CN 206397548U
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- steam turbine
- cooling water
- control system
- water
- cooler
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Abstract
The utility model provides a kind of steam turbine stator cooling water temperature automatic control system, including water cooler A, water cooler B, control system；Connected between the water cooler A and water cooler B by circulating water line, the water cooler A and water cooler B are respectively provided with the contact pipeline being connected with steam turbine cooling water outlet pipe and steam turbine cooling water inlet pipe respectively, circulating water inlet and circulating water outlet pipeline are provided with the circulating water line, temperature sensor is installed on the steam turbine cooling water inlet pipe, motor-driven valve is provided with the circulating water inlet, the motor-driven valve is in parallel with regulating valve, and the temperature sensor and regulating valve pass through control system control.The utility model is controlled with adjustment door, and the aperture of adjustment can be controlled accurately.Automatically controlled by DCS, eliminate manual operations, reduce the workload of operations staff.Steam turbine stator cooling water temperature is automatically controlled by DCS, well more many than artificial control effect, control effect is more accurate.
Description
Technical field
The utility model is related to a kind of steam turbine stator cooling water temperature automatic control system.
Background technology
Existing steam turbine cooling water water cooler is that manual adjustment control cooling water inlet temperature makes operations staff people's industry control
The workload of steam turbine stator cooling water temperature processed is big；Circulating-water valve can only by open and close, stop function and realize the control of aperture, control
Precision processed is very poor；Artificial control steam turbine stator cooling water temperature makes its effect poor due to the time delay of detection temperature.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of steam turbine stator cooling water temperature automatic control system.
The utility model is achieved by the following technical programs.
The utility model provide a kind of steam turbine stator cooling water temperature automatic control system, including water cooler A, water cooler B,
Control system；Connected between the water cooler A and water cooler B by circulating water line, the water cooler A and water cooler B are all provided with
Put to have respectively and set on the contact pipeline being connected with steam turbine cooling water outlet pipe and steam turbine cooling water inlet pipe, the circulating water line
It is equipped with circulating water inlet and circulating water outlet pipeline, the steam turbine cooling water inlet pipe and temperature sensor is installed, it is described
Motor-driven valve is provided with circulating water inlet, the motor-driven valve is in parallel with regulating valve, the temperature sensor and regulating valve are led to
Cross control system control.
On the pipeline that the water cooler A and water cooler B are connected with steam turbine cooling water outlet pipe, steam turbine cooling water inlet pipe
It is provided with switch valve.
The control system is DCS control systems, includes PID adjustment modules.
The beneficial effects of the utility model are：Controlled with adjustment door, the aperture of adjustment can be controlled accurately.Pass through DCS
To automatically control, manual operations is eliminated, the workload of operations staff is reduced.Steam turbine stator is automatically controlled by DCS cold
But water temperature, well more many than artificial control effect, control effect is more accurate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- water coolers A, 2- circulating water line, 3- water coolers B, 4- steam turbine cooling water outlet pipe, 5- steam turbine cooling waters
Water inlet pipe, 6- temperature sensors, 7- control systems, 8- circulating water inlets, 9- motor-driven valves, 10- regulating valves, 11- recirculated waters go out
Mouth pipeline, 12- switch valves.
Embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
A kind of steam turbine stator cooling water temperature automatic control system, including water cooler A1, water cooler B3, control system 7；It is described
Connected between water cooler A1 and water cooler B3 by circulating water line 2, the water cooler A1 and water cooler B3 are respectively provided with to be had respectively
It is provided with the contact pipeline being connected with steam turbine cooling water outlet pipe 4 and steam turbine cooling water inlet pipe 5, the circulating water line 2
Temperature sensor 6 is installed on circulating water inlet 8 and circulating water outlet pipeline 11, the steam turbine cooling water inlet pipe 5, it is described
Motor-driven valve 9 is provided with circulating water inlet 8, the motor-driven valve 9 is in parallel with regulating valve 10, the temperature sensor 6 and regulation
Valve 10 is controlled by control system 7.
The pipeline that the water cooler A1 and water cooler B3 are connected with steam turbine cooling water outlet pipe 4, steam turbine cooling water inlet pipe 5
On be provided with switch valve 12.
The control system 7 is DCS control systems, includes PID adjustment modules.
Principle of the present utility model is to set up a pneumatic adjustment door 10 by electrically operated gate 9 at the scene, for controlling stator water
The cooling water inflow of cooler, is connected with control cable with DCS control systems, because the aperture for adjusting door is accurately controlled, so
Can be by adjusting adjustment door 10 come the accurate cooling water inflow that control stator water-cooling but device, so as to reach control steam turbine stator cooling water
The purpose of temperature.
Increased newly in DCS control systems and automatically control logic：Steam turbine stator cooling water temperature signal is as measured value, with setting
Definite value sends into tolerance module, and the output valve of tolerance module is sent to PID modules, and the output of PID modules is sent to M/A modules, M/A modules
Output signal through control cable with adjust door 10 be connected.
Automatic Control Theory：Steam turbine stator cooling water temperature and setting value carry out deviation computing, and its deviation signal exported is sent
PID modules are given, and PID modules calculate the opening value of an adjustment door 10, opening value is sent through M/A modules through P, I, D function computing
Adjustment door 10 is given, adjustment door 10 accurately controls its aperture on opening value automatically, so as to control the cooling water of stator water-cooling but device
Measure to reach the purpose of control steam turbine stator cooling water temperature, when steam turbine stator cooling water temperature deviates setting value, DCS is again automatic to be calculated
Go out a new opening value to control the aperture of adjustment door 10, big adjustment door 10, steam turbine are just opened in steam turbine stator cooling water temperature rise
Stator cooling water temperature declines, and adjustment door 10 is just turned down, untill steam turbine stator cooling water temperature is in range of set value.
Claims (3)
1. a kind of steam turbine stator cooling water temperature automatic control system, including water cooler A (1), water cooler B (3), control system (7),
It is characterized in that：Connected between the water cooler A (1) and water cooler B (3) by circulating water line (2), the water cooler A (1)
Be respectively provided with water cooler B (3) has the contact being connected with steam turbine cooling water outlet pipe (4) and steam turbine cooling water inlet pipe (5) respectively
Circulating water inlet (8) and circulating water outlet pipeline (11) are provided with pipeline, the circulating water line (2), the steam turbine is cold
But it is provided with water water inlet pipe (5) on temperature sensor (6), the circulating water inlet (8) and is provided with motor-driven valve (9), it is described
Motor-driven valve (9) is in parallel with regulating valve (10), and the temperature sensor (6) and regulating valve (10) are controlled by control system (7).
2. steam turbine stator cooling water temperature automatic control system as claimed in claim 1, it is characterised in that：The water cooler A (1)
Switch is provided with the pipeline being connected with water cooler B (3) with steam turbine cooling water outlet pipe (4), steam turbine cooling water inlet pipe (5)
Valve (12).
3. steam turbine stator cooling water temperature automatic control system as claimed in claim 1, it is characterised in that：The control system
(7) it is DCS control systems, includes PID adjustment modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466749.6U CN206397548U (en) | 2016-12-29 | 2016-12-29 | A kind of steam turbine stator cooling water temperature automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466749.6U CN206397548U (en) | 2016-12-29 | 2016-12-29 | A kind of steam turbine stator cooling water temperature automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397548U true CN206397548U (en) | 2017-08-11 |
Family
ID=59515931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621466749.6U Active CN206397548U (en) | 2016-12-29 | 2016-12-29 | A kind of steam turbine stator cooling water temperature automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116073596A (en) * | 2022-12-07 | 2023-05-05 | 国能大渡河枕头坝发电有限公司 | Temperature rise control system and method for stator of generator set |
-
2016
- 2016-12-29 CN CN201621466749.6U patent/CN206397548U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116073596A (en) * | 2022-12-07 | 2023-05-05 | 国能大渡河枕头坝发电有限公司 | Temperature rise control system and method for stator of generator set |
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