CN214406119U - Steam purging system for starting oxide skin of thermal generator set - Google Patents
Steam purging system for starting oxide skin of thermal generator set Download PDFInfo
- Publication number
- CN214406119U CN214406119U CN202023276378.4U CN202023276378U CN214406119U CN 214406119 U CN214406119 U CN 214406119U CN 202023276378 U CN202023276378 U CN 202023276378U CN 214406119 U CN214406119 U CN 214406119U
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- China
- Prior art keywords
- pressure bypass
- steam
- regulating valve
- thermal generator
- generator set
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- Expired - Fee Related
Links
- 238000010926 purge Methods 0.000 title claims abstract description 16
- 239000003818 cinder Substances 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
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Abstract
The utility model provides a thermal generator set starts cinder steam purging system relates to thermal power factory technical field, including steam turbine equipment, steam turbine equipment's upper right position department has low pressure bypass governing valve through the pipe connection. The utility model discloses in, adopt the unit to adopt steam to sweep the mode that the mode of piling up the cinder and blowing off in with the pipeline during the start-up to solve, and adopt the special instrument to detect the contrast and confirm to sweep the effect during combining to overhaul, can confirm that the effect is very obvious, adopt steam to sweep the clearance cinder mode and can clear up out accumulational cinder in overheat ware, the reheater pipeline fast, save maintenance time and cost of labor, ensure that thermal generator can long period safety and stability operation.
Description
Technical Field
The utility model relates to a thermal power factory technical field especially relates to thermal generator set start-up cinder steam purging system.
Background
The thermal generator set is a set which uses coal, oil or combustible gas as fuel, heats water in a boiler to raise the temperature, and then uses steam with certain pressure to drive a gas turbine to generate electricity.
Can peel off because of over heater, reheater cinder in the thermal generator set working process and pile up the boiler booster that causes, original each unit is adopting artifical inspection cinder, artifical clearance mode to solve over heater, the intraductal cinder of reheater and pile up the problem, nevertheless wastes time and energy relatively, and work efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a thermal generator set starts cinder steam purging system to solve above-mentioned technical problem.
The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: thermal generator set starts cinder steam purging system, including steam turbine equipment, steam turbine equipment's upper right side position department has low pressure bypass control valve through the pipe connection, steam turbine equipment's right side below position department has the condenser through the pipe connection, steam turbine equipment's left side below position department has high pressure bypass control valve through the pipe connection, high pressure bypass control valve's left side below position department has the low temperature re-heater through the pipe connection, the top of low temperature re-heater is located high pressure bypass control valve's upper left side position department, has high heat re-heater to come through the pipe connection.
Preferably, the low-pressure bypass regulating valve and the high-pressure bypass regulating valve are connected with a self-condensing water system through pipelines, and the steam turbine equipment is provided with ten main valves and regulating valves.
Preferably, when the pressure before the high-pressure bypass regulating valve reaches 0.5MPa, the high-pressure bypass regulating valve and the low-pressure bypass regulating valve are slightly opened for heating the pipe.
Preferably, the pressure behind the high-pressure bypass regulating valve does not exceed 1.2 MPa.
Preferably, the pipeline at the condenser controls the pressure to 2MPa, the low-pressure bypass regulating valve is fully opened to enable external cold water to flow in for temperature control, and the temperature of water vapor before the low-pressure bypass regulating valve is controlled to reach the condenser is less than 165 ℃.
Preferably, the condenser controls the water level below 900mm before opening the high pressure bypass regulating valve.
The utility model has the advantages that:
the utility model discloses in, adopt the unit to adopt steam to sweep the mode that the mode of piling up the cinder and blowing off in with the pipeline during the start-up to solve, and adopt the special instrument to detect the contrast and confirm to sweep the effect during combining to overhaul, can confirm that the effect is very obvious, adopt steam to sweep the clearance cinder mode and can clear up out accumulational cinder in overheat ware, the reheater pipeline fast, save maintenance time and cost of labor, ensure that thermal generator can long period safety and stability operation.
Drawings
Fig. 1 is a schematic structural diagram of a steam purging system for starting oxide skin of a thermal generator set according to the present invention;
reference numerals: 1. a high heat reheater; 2. a low pressure bypass regulator valve; 3. a condenser; 4. a low temperature reheater; 5. a high pressure bypass regulator valve; 6. a steam turbine plant.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, thermal generator set starts cinder steam purging system, including steam turbine equipment 6, the upper right side position department of steam turbine equipment 6, there is low pressure bypass governing valve 2 through the pipe connection, the lower right side position department of steam turbine equipment 6, there is condenser 3 through the pipe connection, the lower left side position department of steam turbine equipment 6, there is high pressure bypass governing valve 5 through the pipe connection, the lower left side position department of high pressure bypass governing valve 5, there is low temperature reheater 4 through the pipe connection, the top of low temperature reheater 4 is located the upper left side position department of high pressure bypass governing valve 5, there is high heat reheater through the pipe connection to come 1.
When the device is used, high-temperature steam from a boiler superheater enters a boiler low-temperature reheater 4 through a high-pressure bypass regulating valve 5, reheated steam from a high-temperature reheater 7 after being heated by the reheater is discharged to a condenser 3 through a low-pressure bypass regulating valve 1, so that the purpose of carrying oxide skin peeled off from the boiler superheater and the reheater to the condenser 3 is achieved, then the object of preventing pipe explosion caused by overheating due to the fact that the oxide skin is peeled off and accumulated on a heating surface of the boiler is achieved, in the oxide skin purging process, 6 ten main steam valves and regulating valves of a steam turbine device are in a closed state, steam is not fed into the steam turbine, and steam flows all through a high-pressure bypass system and a low-pressure bypass system.
Example 2
As shown in fig. 1, thermal generator set starts cinder steam purging system, including steam turbine equipment 6, the upper right side position department of steam turbine equipment 6, there is low pressure bypass governing valve 2 through the pipe connection, the lower right side position department of steam turbine equipment 6, there is condenser 3 through the pipe connection, the lower left side position department of steam turbine equipment 6, there is high pressure bypass governing valve 5 through the pipe connection, the lower left side position department of high pressure bypass governing valve 5, there is low temperature reheater 4 through the pipe connection, the top of low temperature reheater 4 is located the upper left side position department of high pressure bypass governing valve 5, there is high heat reheater through the pipe connection to come 1.
During the use, the scale cinder that blows out is held back through 3 leading filters of condensate polishing of condenser, and the rethread backwash leading filter is discharged the scale cinder to through the change of monitoring iron content in the condensate water of laboratory, judge the circumstances that drops of scale cinder.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. Thermal generator set starts cinder steam purging system, including steam turbine equipment (6), its characterized in that: the utility model discloses a high-pressure steam turbine, including steam turbine equipment (6), low pressure bypass control valve (2) through the pipe connection, the right side below position department of steam turbine equipment (6) has condenser (3) through the pipe connection, the left side below position department of steam turbine equipment (6) has high pressure bypass control valve (5) through the pipe connection, the left side below position department of high pressure bypass control valve (5) has low temperature reheater (4) through the pipe connection, the top of low temperature reheater (4) is located the upper left side position department of high pressure bypass control valve (5), has high heat reheater through the pipe connection and comes (1).
2. The thermal generator set start-up scale steam purging system of claim 1, characterized in that: the low-pressure bypass regulating valve (2) and the high-pressure bypass regulating valve (5) are connected with a self-condensing water system through pipelines, and the steam turbine equipment (6) is provided with ten main steam valves and regulating valves.
3. The thermal generator set start-up scale steam purging system of claim 1, characterized in that: when the front pressure of the high-pressure bypass regulating valve (5) reaches 0.5MPa, the high-pressure bypass regulating valve (5) and the low-pressure bypass regulating valve (2) are slightly opened for heating the pipe.
4. The thermal generator set start-up scale steam purging system of claim 1, characterized in that: the pressure behind the high-pressure bypass regulating valve (5) is not more than 1.2 MPa.
5. The thermal generator set start-up scale steam purging system of claim 1, characterized in that: the pipeline at the condenser (3) controls the pressure to 2MPa, the low-pressure bypass regulating valve (2) is fully opened to enable external cold water to flow in for temperature control, and the low-pressure bypass regulating valve (2) is controlled to enable the temperature of water vapor before the condenser to be lower than 165 ℃.
6. The thermal generator set start-up scale steam purging system of claim 1, characterized in that: the water level of the condenser (3) is controlled below 900mm before the high-pressure bypass regulating valve (5) is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023276378.4U CN214406119U (en) | 2020-12-30 | 2020-12-30 | Steam purging system for starting oxide skin of thermal generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023276378.4U CN214406119U (en) | 2020-12-30 | 2020-12-30 | Steam purging system for starting oxide skin of thermal generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214406119U true CN214406119U (en) | 2021-10-15 |
Family
ID=78042595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023276378.4U Expired - Fee Related CN214406119U (en) | 2020-12-30 | 2020-12-30 | Steam purging system for starting oxide skin of thermal generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214406119U (en) |
-
2020
- 2020-12-30 CN CN202023276378.4U patent/CN214406119U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |