CN116557088A - Closed water system of steam turbine with APS one-key start-stop function - Google Patents
Closed water system of steam turbine with APS one-key start-stop function Download PDFInfo
- Publication number
- CN116557088A CN116557088A CN202310543720.1A CN202310543720A CN116557088A CN 116557088 A CN116557088 A CN 116557088A CN 202310543720 A CN202310543720 A CN 202310543720A CN 116557088 A CN116557088 A CN 116557088A
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- Prior art keywords
- water
- exchanger
- closed
- closing
- steam turbine
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 32
- 239000000498 cooling water Substances 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a closed water system of a steam turbine with an APS one-key start-stop function, which is characterized in that a main controller and an intelligent default automatic selector are configured to divide the start-stop process of the closed water system of the steam turbine into standardized steps, the configuration is carried out in a logic picture, the one-key start-stop function of the closed water system of the steam turbine is realized through logic and parameter control, the start-stop process is divided into a start stage and a stop stage, the start stage consists of four steps, and the stop stage consists of three steps, wherein the completion of the previous steps is used as a precondition for the start of the subsequent steps. The closed water system of the steam turbine has the logical function of APS one-key start-stop, reduces the burden of operators, is more convenient to monitor, improves the efficiency of operators, improves the automation degree of power plant equipment, and ensures the safe and stable operation of the generator set.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to a closed water system of a steam turbine with an APS one-key start-stop function.
Background
The closed water system is used as one of important systems of the waste heat boiler and the steam turbine, and the closed water system has the task of cooling each system and reducing the operation temperature of each system so as to ensure the stable operation of the system; the operation of the normal working condition of the unit can be directly influenced by the quality of the closed water cooling effect, so that the safety, economy and high-efficiency operation of the turbine unit can be directly influenced by the quality of the operation effect of the closed water system
At present, manual operation is adopted in the starting and stopping process, and manual input is performed after manual parameter adjustment is needed to be accurate through manual starting and stopping of a pump, opening and closing of a valve to supplement water, adjustment of a cooler adjusting valve and other automatic adjusting doors. Under the condition of manual control, because each person has different operation habits and proficiency, the closed water pressure and temperature parameters have large deviation and cannot be put into automation, the parameter change is more manual and is not put into automation, and the operation errors are easy to occur, so that accidents are caused. The current situation of increasing requirements on the generator set cannot be met, and once an accident occurs, the unplanned shutdown is caused, so that the stability of the whole power system can be influenced.
The present application therefore aims to provide a closed water system for a steam turbine with APS one-key start-stop function which overcomes the above drawbacks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a closed water system of a steam turbine with an APS one-key start-stop function.
The aim of the invention is achieved by the following technical scheme: a closed water system of a steam turbine with an APS one-key start-stop function is provided, a main controller and an intelligent default automatic selector are configured to divide the start-stop process of the closed water system of the steam turbine into standardized steps, the configuration is carried out in a logic picture, the one-key start-stop function of the closed water system of the steam turbine is realized through logic and parameter control, the start-stop process is divided into a start stage and a stop stage, the start stage consists of four steps, the stop stage consists of three steps, and the completion of the preceding steps is used as a precondition for the start of the subsequent steps.
Preferably, step 1 of the start-up phase is completed under the following conditions: the method comprises the steps of closing an open circulating water inlet valve of a water-water exchanger A, closing an open circulating water inlet valve of a water-water exchanger B, closing a cooling water inlet valve of an air compressor system, closing an open circulating water outlet valve of the water-water exchanger A, closing an open circulating water outlet valve of the water-water exchanger B, closing a water injection electric valve of a closed cooling water system, closing a cooling water outlet valve of the air compressor system, closing a water inlet bypass valve of an engine lubricating oil cooler, fully closing a water inlet regulating valve of the engine lubricating oil cooler and operating the engine lubricating oil system
Preferably, step 2 of the start-up phase is completed under the following conditions: the water exchanger A is opened by closing the cold water inlet valve, the water exchanger A is opened by closing the cold water outlet valve, the water exchanger B is opened by closing the cold water inlet valve, and the water exchanger B is opened by closing the cold water outlet valve.
Preferably, step 3 of the start-up phase is completed under the following conditions: and starting the cold water pump A unit, starting the cold water pump B unit and starting the cold water pump C unit.
Preferably, step 4 of the start-up phase is completed under the following conditions: the open-type circulating water inlet valve of the water-water exchanger A is opened, the open-type circulating water outlet valve of the water-water exchanger A is opened, the open-type circulating water inlet valve of the water-water exchanger B is opened, and the open-type circulating water outlet valve of the water-water exchanger B is opened.
Preferably, step 1 of the stop phase is completed under the following conditions: the open-type circulating water inlet valve of the water-water exchanger A is closed, the open-type circulating water outlet valve of the water-water exchanger A is closed, the open-type circulating water inlet valve of the water-water exchanger B is closed, and the open-type circulating water outlet valve of the water-water exchanger B is closed.
Preferably, step 2 of the stop phase is completed under the following conditions: the cold water pump A unit is stopped, the cold water pump B unit is stopped, and the cold water pump C unit is stopped.
Preferably, step 3 of the stop phase is completed under the following conditions: the water exchanger A closes the cold water inlet valve, the water exchanger A closes the cold water outlet valve, the water exchanger B closes the cold water inlet valve, and the water exchanger B closes the cold water outlet valve.
The invention has the following advantages: the closed water system of the steam turbine has the logical function of starting and stopping by an APS (automatic switching system) by one key, so that an operator can start and stop the process by only clicking a key, the system can automatically execute the steps of switching a valve, starting and stopping a pump, switching and adjusting a valve and automatically inputting according to the set step sequence until each parameter of the closed water system meets the standard of normal starting and stopping, the starting and stopping process is optimized, the burden of the operator is lightened, the operator can conveniently go to a monitoring disc, the working efficiency of the operator is improved, the automation degree of power plant equipment is improved, and the safe and stable operation of a generator set is ensured.
Drawings
FIG. 1 is a schematic diagram of the working principle of the closed water system unified key start of the steam turbine;
fig. 2 is a schematic diagram of the working principle of the closed water system unified key stop of the steam turbine.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings, the scope of the invention not being limited to the following:
as shown in fig. 1 and 2, the present application provides a closed water system of a steam turbine with an APS one-key start-stop function, which is characterized in that a main controller and an intelligent default automatic selector are configured to divide the start-stop process of the closed water system of the steam turbine into standardized steps, perform configuration in a logic picture, and realize the one-key start-stop function of the closed water system of the steam turbine through logic and parameter control, wherein the start-stop process is divided into a start stage and a stop stage, the start stage is composed of four steps, and the stop stage is composed of three steps, and the completion of the previous steps is used as a precondition for the start of the subsequent steps.
Preferably, step 1 of the start-up phase is completed under the following conditions: the method comprises the steps of closing an open circulating water inlet valve of a water-water exchanger A, closing an open circulating water inlet valve of a water-water exchanger B, closing a cooling water inlet valve of an air compressor system, closing an open circulating water outlet valve of the water-water exchanger A, closing an open circulating water outlet valve of the water-water exchanger B, closing a water injection electric valve of a closed cooling water system, closing a cooling water outlet valve of the air compressor system, closing a water inlet bypass valve of an engine lubricating oil cooler, fully closing a water inlet regulating valve of the engine lubricating oil cooler and operating the engine lubricating oil system
Preferably, step 2 of the start-up phase is completed under the following conditions: the water exchanger A is opened by closing the cold water inlet valve, the water exchanger A is opened by closing the cold water outlet valve, the water exchanger B is opened by closing the cold water inlet valve, and the water exchanger B is opened by closing the cold water outlet valve.
Preferably, step 3 of the start-up phase is completed under the following conditions: and starting the cold water pump A unit, starting the cold water pump B unit and starting the cold water pump C unit.
Preferably, step 4 of the start-up phase is completed under the following conditions: the open-type circulating water inlet valve of the water-water exchanger A is opened, the open-type circulating water outlet valve of the water-water exchanger A is opened, the open-type circulating water inlet valve of the water-water exchanger B is opened, and the open-type circulating water outlet valve of the water-water exchanger B is opened.
Preferably, step 1 of the stop phase is completed under the following conditions: the open-type circulating water inlet valve of the water-water exchanger A is closed, the open-type circulating water outlet valve of the water-water exchanger A is closed, the open-type circulating water inlet valve of the water-water exchanger B is closed, and the open-type circulating water outlet valve of the water-water exchanger B is closed.
Preferably, step 2 of the stop phase is completed under the following conditions: the cold water pump A unit is stopped, the cold water pump B unit is stopped, and the cold water pump C unit is stopped.
Preferably, step 3 of the stop phase is completed under the following conditions: the water exchanger A closes the cold water inlet valve, the water exchanger A closes the cold water outlet valve, the water exchanger B closes the cold water inlet valve, and the water exchanger B closes the cold water outlet valve.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The closed water system of the steam turbine with the APS one-key start-stop function is characterized in that a main controller and an intelligent default automatic selector are configured to divide the start-stop process of the closed water system of the steam turbine into standardized steps, the configuration is carried out in a logic picture, the one-key start-stop function of the closed water system of the steam turbine is realized through logic and parameter control, the start-stop process is divided into a start stage and a stop stage, the start stage consists of four steps, and the stop stage consists of three steps, wherein the completion of the previous steps is used as a precondition for the start of the subsequent steps.
2. The closed water system of steam turbine with APS one-key start-stop function according to claim 1, wherein step 1 of the start-up phase is completed under the condition that: the method comprises the steps of closing an open circulating water inlet valve of a water exchanger A, closing an open circulating water inlet valve of a water exchanger B, closing a cooling water inlet valve of an air compressor system, closing an open circulating water outlet valve of the water exchanger A, closing an open circulating water outlet valve of the water exchanger B, closing a water injection electric valve of a closed cooling water system, closing a cooling water outlet valve of the air compressor system, closing a water inlet bypass valve of an engine lubricating oil cooler, fully closing a water inlet regulating valve of the engine lubricating oil cooler and operating the engine lubricating oil system.
3. The closed water system of steam turbine with APS one-key start-stop function according to claim 2, wherein step 2 of the start-up phase is completed under the condition that: the water exchanger A is opened by closing the cold water inlet valve, the water exchanger A is opened by closing the cold water outlet valve, the water exchanger B is opened by closing the cold water inlet valve, and the water exchanger B is opened by closing the cold water outlet valve.
4. A closed water system for a steam turbine with APS one-key start-stop function according to claim 3, wherein step 3 of the start-up phase is completed under the condition that: and starting the cold water pump A unit, starting the cold water pump B unit and starting the cold water pump C unit.
5. The closed water system of steam turbine with APS one-key start-stop function according to claim 4, wherein step 4 of the start-up phase is completed under the condition that: the open-type circulating water inlet valve of the water-water exchanger A is opened, the open-type circulating water outlet valve of the water-water exchanger A is opened, the open-type circulating water inlet valve of the water-water exchanger B is opened, and the open-type circulating water outlet valve of the water-water exchanger B is opened.
6. The closed water system of steam turbine with APS one-key start-stop function according to claim 1, wherein step 1 of the stop phase is completed under the condition that: the open-type circulating water inlet valve of the water-water exchanger A is closed, the open-type circulating water outlet valve of the water-water exchanger A is closed, the open-type circulating water inlet valve of the water-water exchanger B is closed, and the open-type circulating water outlet valve of the water-water exchanger B is closed.
7. The closed water system of steam turbine with APS one-key start-stop function according to claim 6, wherein step 2 of the stop phase is completed under the condition that: the cold water pump A unit is stopped, the cold water pump B unit is stopped, and the cold water pump C unit is stopped.
8. The closed water system of steam turbine with APS one-key start-stop function according to claim 7, wherein step 3 of the stop phase is completed under the condition that: the water exchanger A closes the cold water inlet valve, the water exchanger A closes the cold water outlet valve, the water exchanger B closes the cold water inlet valve, and the water exchanger B closes the cold water outlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310543720.1A CN116557088A (en) | 2023-05-15 | 2023-05-15 | Closed water system of steam turbine with APS one-key start-stop function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310543720.1A CN116557088A (en) | 2023-05-15 | 2023-05-15 | Closed water system of steam turbine with APS one-key start-stop function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116557088A true CN116557088A (en) | 2023-08-08 |
Family
ID=87485727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310543720.1A Pending CN116557088A (en) | 2023-05-15 | 2023-05-15 | Closed water system of steam turbine with APS one-key start-stop function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116557088A (en) |
-
2023
- 2023-05-15 CN CN202310543720.1A patent/CN116557088A/en active Pending
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