CN105781631B - A kind of coal-fired power plant's steam turbine red switch activation system and its startup method - Google Patents
A kind of coal-fired power plant's steam turbine red switch activation system and its startup method Download PDFInfo
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- CN105781631B CN105781631B CN201610302767.9A CN201610302767A CN105781631B CN 105781631 B CN105781631 B CN 105781631B CN 201610302767 A CN201610302767 A CN 201610302767A CN 105781631 B CN105781631 B CN 105781631B
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- 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
- F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
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Abstract
The invention discloses a kind of coal-fired power plant's steam turbine red switch activation system and its startup method, the problem of equipment investment present in large-scale coal-fired power plant's outfit starting trouble is greatly with taking up an area many is solved.Set a set of hydrophobic collection system in parallel with condenser, independent operating or switching out of service are controlled by valve.After hydrophobic entrance flash vessel, because pressure is down to normal atmospheric pressure, rapid expanding pressure release, small part saturated vapor is discharged into air as a vapor by emptying pipeline, discharge pipe line of most of saturated mode hot water from flash vessel bottom（35）, through draining shut-off valve（36）, multilevel water seal（37）Arrange the entrance main pipe to condensate pump；After condenser is vacuumized, these three valves are closed, cut-off air suspended type starts hydrophobic development unit（17）With major steam line（9）, high pressure cylinder exhaust line（19）With high-temperature reheat pipe road（27）Connection, prevent high-temperature steam from leaking.The system is simple in construction, and equipment manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of activation system of coal-fired power plant's steam turbine, more particularly to one kind is without outer confession turbine shaft seal
The steam turbine red switch activation system and its startup method of steam.
Background technology
General in coal-fired power plant to be each equipped with starting trouble, the effect of starting trouble is started in steam turbine red switch
Before, gland steam is provided for steam turbine, makes steam turbine and condenser complete to vacuumize, can reclaim from steam turbine and fire coal
It is hydrophobic on jet chimney between generating main boiler, and then reach the purpose that steam turbine red switch starts.In the prior art, steamer
Arbor envelope vapour parameter has specific strict requirements, usually 250 DEG C or so, more than 50 DEG C of steam superheat requirement.In fire coal
In a period of time of generating main boiler Initial Stage after Ignition, the steam of boiler output is can not to meet turbine shaft seal vapour parameter request
, so, general large-scale coal-fired power plant needs to be equipped with 1-2 platform starting troubles, there is equipment investment greatly and more than land occupation
Problem.
The content of the invention
The invention provides a kind of coal-fired power plant's steam turbine red switch activation system and its startup method, large-scale combustion is solved
Coal power generation factory be equipped with that equipment investment present in starting trouble is big and land occupation more than technical problem.
The present invention is to solve above technical problem by the following technical programs：
A kind of coal-fired power plant's steam turbine red switch activation system, including coal fired power generation main boiler, steam turbine and air suspended type expand
Container, is provided with emptying pipeline on air suspended type flash vessel, and coal fired power generation main boiler includes main boiler superheater, main boiler high temperature
Reheater and main boiler low-temperature reheater, steam turbine include high pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder and condenser, in going out for condenser
Condensate pump is provided with the mouth of a river, the first hydrophobic collector, the second hydrophobic collector and the 3rd are respectively arranged with condenser hydrophobic
Major steam line is provided between collector, the high pressure main steam valve on main boiler superheater and high pressure cylinder, in high pressure cylinder and master
High pressure cylinder exhaust line is provided between Low Temperature Reheater, the middle pressure reheating main steam valve on intermediate pressure cylinder and main boiler high temperature
High-temperature reheat pipe road is provided between reheater, major steam line threeway is serially connected with major steam line, in main steam
Main steam drain pipe is provided between the mesopore of pipeline threeway and the first hydrophobic collector, is respectively arranged with main steam drain pipe
The manual drain valve of main steam and main steam Pneumatic steam trap valve, between the manual drain valve of main steam and main steam Pneumatic steam trap valve
Main steam hydrophobic pipeline threeway is serially connected with main steam drain pipe, in mesopore and the air suspended type dilatation of main steam hydrophobic pipeline threeway
The bypass of steam turbine main steam hydrophobic pipeline is provided between device, the first gas is provided with the bypass of steam turbine main steam hydrophobic pipeline
Dynamic hydrophobic valve；Exhaust line threeway is serially connected with high pressure cylinder exhaust line, is dredged in the mesopore of exhaust line threeway and second
Steam discharge drain pipe is provided between water collector, the manual drain valve of steam discharge is respectively arranged with steam discharge drain pipe and steam discharge is pneumatic thin
Steam discharge hydrophobic pipeline three is serially connected with water valve, the steam discharge drain pipe between the manual drain valve of steam discharge and steam discharge Pneumatic steam trap valve
It is logical, the bypass of turbine discharge hydrophobic pipeline is provided between the mesopore and air suspended type flash vessel of steam discharge hydrophobic pipeline threeway,
The second pneumatic draining valve is provided with the bypass of turbine discharge hydrophobic pipeline；High temperature is serially connected with high-temperature reheat pipe road
Reheated steam pipeline threeway, high temperature reheating is provided between the mesopore and the 3rd hydrophobic collector of high-temperature reheat pipe road threeway
Steam drainage pipeline, is respectively arranged with the manual drain valve of high temperature reheated steam and high temperature again on high temperature reheated steam hydrophobic pipeline
Vapours Pneumatic steam trap valve, the high temperature between the manual drain valve of high temperature reheated steam and high temperature reheated steam Pneumatic steam trap valve is again
The hydrophobic threeway in high-temperature reheat pipe road is provided with vapours hydrophobic pipeline, in the hydrophobic threeway in high-temperature reheat pipe road
The bypass of steam turbine high-temperature reheated steam hydrophobic pipeline is provided between hole and air suspended type flash vessel, in steam turbine high-temperature reheated steam
The 3rd Pneumatic steam trap valve is provided with hydrophobic pipeline bypass.
Discharge pipe line is provided between the delivery port and air suspended type flash vessel of condenser, the row of being provided with discharge pipe line
Water shut-off valve and multilevel water seal, are provided with emptying pipeline on air suspended type flash vessel.
It is provided with another major steam line threeway, the mesopore of another major steam line threeway and is connected with major steam line
Turbine shaft seal steam supply pipeline, the other end of turbine shaft seal steam supply pipeline is connected with turbine shaft gland sealing steam supply regulation station, in vapour
The electronic shut-off valve of shaft seal steam regulation station is provided with turbine shaft seal steam pipeline；It is provided with high pressure cylinder exhaust line another
Another turbine shaft seal steam supply pipeline, another steam turbine are connected with exhaust line threeway, the mesopore of another exhaust line threeway
The other end of shaft seal steam pipeline is connected with turbine shaft gland sealing steam supply regulation station, is set on another turbine shaft seal steam supply pipeline
There is another electronic shut-off valve of shaft seal steam regulation station.
A kind of coal-fired power plant's steam turbine red switch starts method, comprises the following steps：
The first step, the concatenation major steam line threeway on major steam line, in the mesopore of major steam line threeway and first
Main steam drain pipe is set between hydrophobic collector, the manual drain valve of main steam and main steam are set respectively on main steam drain pipe
Main steam is concatenated on Pneumatic steam trap valve, the main steam drain pipe between the hydrophobic hand-operated valve of main steam and the hydrophobic pneumatic operated valve of main steam
Hydrophobic pipeline threeway, sets steam turbine red switch between the mesopore of main steam hydrophobic pipeline threeway and the air suspended type flash vessel of closing
Start main steam hydrophobic pipeline, the first pneumatic draining valve is set in the bypass of steam turbine main steam hydrophobic pipeline；In high pressure cylinder
Exhaust line threeway is concatenated on exhaust line, sets steam discharge hydrophobic between the mesopore of exhaust line threeway and the second hydrophobic collector
Pipe, sets the hydrophobic hand-operated valve of steam discharge and the hydrophobic pneumatic operated valve of steam discharge respectively on steam discharge drain pipe, in the manual drain valve of steam discharge and row
On steam discharge drain pipe between vapour Pneumatic steam trap valve concatenate steam discharge hydrophobic pipeline threeway, steam discharge hydrophobic pipeline threeway mesopore with
The bypass of turbine discharge hydrophobic pipeline is set between the air suspended type flash vessel of closing, set in the bypass of turbine discharge hydrophobic pipeline
Put the second pneumatic draining valve；High-temperature reheat pipe road threeway is concatenated on high-temperature reheat pipe road, is steamed in high temperature reheating
High temperature reheated steam hydrophobic pipeline is set between the mesopore of vapor pipeline threeway and the 3rd hydrophobic collector, it is hydrophobic in high pressure reheated steam
The manual drain valve of high temperature reheated steam and high temperature reheated steam Pneumatic steam trap valve are set respectively on pipeline, in high pressure reheated steam hand
High temperature reheated steam is set on dynamic high pressure reheated steam hydrophobic pipeline between drain valve and high temperature reheated steam Pneumatic steam trap valve
The hydrophobic threeway of pipeline, steamer is set between the mesopore of the hydrophobic threeway in high-temperature reheat pipe road and the air suspended type flash vessel of closing
Machine red switch starts high temperature reheated steam hydrophobic pipeline, starts in steam turbine red switch and the 3rd is set on high temperature reheated steam hydrophobic pipeline
Pneumatic draining valve；
Second step, closing high pressure main steam valve, main steam Pneumatic steam trap valve, steam discharge Pneumatic steam trap valve and high temperature reheated steam
Hydrophobic pneumatic operated valve；Open the manual drain valve of main steam, the manual drain valve of steam discharge, the manual drain valve of high temperature reheated steam, the first gas
Dynamic drain valve, the second Pneumatic steam trap valve and the 3rd Pneumatic steam trap valve, draining shut-off valve；
3rd step, igniting starts coal fired power generation main boiler, and what is produced in Initial Stage after Ignition, major steam line is hydrophobic through first
Pneumatic draining valve is discharged into produced in air suspended type flash vessel, high pressure cylinder exhaust line hydrophobic and is discharged into through the second pneumatic draining valve
Produced in air suspended type flash vessel, high-temperature reheat pipe road it is hydrophobic be discharged into air suspended type flash vessel through the 3rd pneumatic draining valve,
When the vapor (steam) temperature in the persistently overheating boosting of coal fired power generation main boiler, major steam line or high pressure cylinder exhaust line is higher than 250 DEG C
And the degree of superheat is when being more than 50 DEG C, opens corresponding main steam to the electronic shut-off valve of turbine shaft gland sealing steam supply regulation station or high pressure cylinder and arrange
Vapor pipeline provides gland steam to the electronic shut-off valve of turbine shaft gland sealing steam supply regulation station to steam turbine；
4th step, steam turbine and condenser start to vacuumize；
5th step, when the absolute pressure in steam turbine and condenser reaches 15 kPas, close the first Pneumatic steam trap valve, the
Two Pneumatic steam trap valves, the 3rd Pneumatic steam trap valve and draining shut-off valve；Open main steam Pneumatic steam trap valve, steam discharge Pneumatic steam trap valve and
High temperature reheated steam Pneumatic steam trap valve, it is hydrophobic that condenser starts receiving pipeline；
6th step, coal fired power generation main boiler continue load up and reach steam turbine rolling parameter, then open high pressure main steam
Valve, steam turbine enters vapour red switch and startup, in the process, and main steam Pneumatic steam trap valve, steam discharge gas are controlled by steam turbine specification
The opening and closing of dynamic drain valve and high temperature reheated steam Pneumatic steam trap valve.
The present invention is mainly made up of following part：One independent air suspended type starts hydrophobic development unit, the row being attached thereto
Water lines, draining shut-off valve, multilevel water seal empties pipeline；Steam turbine main steam hydrophobic pipeline is bypassed, the first Pneumatic steam trap valve
Door, the bypass of high pressure cylinder steam discharge hydrophobic pipeline, the second pneumatic draining valve, the bypass of steam turbine high-temperature reheated steam hydrophobic pipeline, the
Three Pneumatic steam trap valves.This novel system, simple in construction, equipment manufacturing cost is low, installs and using all very convenient.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
A kind of coal-fired power plant's steam turbine red switch activation system, including coal fired power generation main boiler, steam turbine and air suspended type expand
Container 17, is provided with emptying pipeline 38 on air suspended type flash vessel 17, and coal fired power generation main boiler includes main boiler superheater 1, master
Boiler high temperature reheater 2 and main boiler low-temperature reheater 3, steam turbine include high pressure cylinder 4, intermediate pressure cylinder 5, low pressure (LP) cylinder 6 and condenser
7, condensate pump 8 is provided with the delivery port of condenser 7, the first hydrophobic collector 12, second is respectively arranged with condenser 7
Set between the hydrophobic collector 29 of hydrophobic collector 21 and the 3rd, the high pressure main steam valve 11 on main boiler superheater 1 and high pressure cylinder 4
There is major steam line 9, high pressure cylinder exhaust line 19 is provided between high pressure cylinder 4 and main boiler low-temperature reheater 3, in intermediate pressure cylinder
High-temperature reheat pipe road 27 is provided between middle pressure reheating main steam valve 49 and main boiler high temperature reheater 2 on 5, in main steam
Major steam line threeway 10 is serially connected with pipeline 9, is set between the mesopore of major steam line threeway 10 and the first hydrophobic collector 12
Main steam drain pipe 46 is equipped with, the manual drain valve 13 of main steam is respectively arranged with main steam drain pipe 46 and main steam is pneumatic
It is serially connected with drain valve 14, the main steam drain pipe 46 between the manual drain valve 13 of main steam and main steam Pneumatic steam trap valve 14
Main steam hydrophobic pipeline threeway 15, vapour is provided between the mesopore and air suspended type flash vessel 17 of main steam hydrophobic pipeline threeway 15
Turbine main steam hydrophobic pipeline bypass 16, the first pneumatic draining valve is provided with steam turbine main steam hydrophobic pipeline bypass 16
18；Exhaust line threeway 20 is serially connected with high pressure cylinder exhaust line 19, it is hydrophobic in the mesopore of exhaust line threeway 20 and second
Steam discharge drain pipe 47 is provided between collector 21, the manual drain valve 22 of steam discharge and steam discharge are respectively arranged with steam discharge drain pipe 47
The row of being serially connected with Pneumatic steam trap valve 23, the steam discharge drain pipe 47 between the manual drain valve 22 of steam discharge and steam discharge Pneumatic steam trap valve 23
Vapour hydrophobic pipeline threeway 24, is provided with steam turbine row between the mesopore and air suspended type flash vessel 17 of steam discharge hydrophobic pipeline threeway 24
Vapour hydrophobic pipeline bypass 25, the second pneumatic draining valve 26 is provided with turbine discharge hydrophobic pipeline bypass 25；In high temperature
High-temperature reheat pipe road threeway 28 is serially connected with reheated steam pipeline 27, high-temperature reheat pipe road threeway 28 mesopore with
High temperature reheated steam hydrophobic pipeline 48 is provided between 3rd hydrophobic collector 29, on high temperature reheated steam hydrophobic pipeline 48 respectively
The manual drain valve 30 of high temperature reheated steam and high temperature reheated steam Pneumatic steam trap valve 31 are provided with, is dredged manually in high temperature reheated steam
High temperature reheating is provided with high temperature reheated steam hydrophobic pipeline 48 between water valve 30 and high temperature reheated steam Pneumatic steam trap valve 31
The hydrophobic threeway 32 of steam pipework, is set between the mesopore and air suspended type flash vessel 17 of the hydrophobic threeway 32 in high-temperature reheat pipe road
There is steam turbine high-temperature reheated steam hydrophobic pipeline to bypass 33, be provided with steam turbine high-temperature reheated steam hydrophobic pipeline bypass 33
3rd Pneumatic steam trap valve 34.
Discharge pipe line 35 is provided between the delivery port and air suspended type flash vessel 17 of condenser 7, on discharge pipe line 35
Draining shut-off valve 36 and multilevel water seal 37 are provided with, emptying pipeline 38 is provided with air suspended type flash vessel 17.
It is provided with major steam line 9 on another major steam line threeway 39, the mesopore of another major steam line threeway 39
Turbine shaft seal steam supply pipeline 41 is connected with, the other end of turbine shaft seal steam supply pipeline 41 is connected with turbine shaft gland sealing steam supply tune
Section station 40, is provided with the electronic shut-off valve 42 of shaft seal steam regulation station on turbine shaft seal steam supply pipeline 41；In high pressure cylinder steam discharge
It is provided with pipeline 19 on another exhaust line threeway 43, the mesopore of another exhaust line threeway 43 and is connected with another turbine shaft
Gland sealing steam supply pipeline 44, the other end of another turbine shaft seal steam supply pipeline 44 is connected with turbine shaft gland sealing steam supply regulation station 40,
The electronic shut-off valve 45 of another shaft seal steam regulation station is provided with another turbine shaft seal steam supply pipeline 44.
A kind of coal-fired power plant's steam turbine red switch starts method, comprises the following steps：
The first step, major steam line threeway 10 is concatenated on major steam line 9, major steam line threeway 10 mesopore with
Main steam drain pipe 46 is set between first hydrophobic collector 12, sets main steam hydrophobic manually respectively on main steam drain pipe 46
Valve 13 and main steam Pneumatic steam trap valve 14, the main steam between the hydrophobic hand-operated valve 13 of main steam and the hydrophobic pneumatic operated valve 14 of main steam
Main steam hydrophobic pipeline threeway 15 is concatenated on drain pipe 46, in the mesopore and the air suspended type of closing of main steam hydrophobic pipeline threeway 15
Steam turbine red switch is set to start main steam hydrophobic pipeline 16 between flash vessel 17, in steam turbine main steam hydrophobic pipeline bypass 16
First pneumatic draining valve 18 is set；Exhaust line threeway 20 is concatenated on high pressure cylinder exhaust line 19, in exhaust line threeway
Steam discharge drain pipe 47 is set between 20 mesopore and the second hydrophobic collector 21, sets steam discharge hydrophobic respectively on steam discharge drain pipe 47
Hand-operated valve 22 and the hydrophobic pneumatic operated valve 23 of steam discharge, the steam discharge between the manual drain valve 22 of steam discharge and steam discharge Pneumatic steam trap valve 23 are hydrophobic
Steam discharge hydrophobic pipeline threeway 24 is concatenated on pipe 47, in the mesopore and the air suspended type flash vessel 17 of closing of steam discharge hydrophobic pipeline threeway 24
Between turbine discharge hydrophobic pipeline bypass 25 is set, second pneumatic draining is set in turbine discharge hydrophobic pipeline bypass 25
Valve 26；High-temperature reheat pipe road threeway 28 is concatenated on high-temperature reheat pipe road 27, on high-temperature reheat pipe road three
High temperature reheated steam hydrophobic pipeline 48 is set between logical 28 mesopore and the 3rd hydrophobic collector 29, in high pressure reheated steam drain pipe
The manual drain valve 30 of high temperature reheated steam and high temperature reheated steam Pneumatic steam trap valve 31 are set respectively on road 48, steamed in high pressure reheating
Set on high pressure reheated steam hydrophobic pipeline 48 between the manual drain valve 30 of vapour and high temperature reheated steam Pneumatic steam trap valve 31 high
The warm hydrophobic threeway 32 of reheated steam pipeline, the mesopore of hydrophobic threeway 32 and the air suspended type dilatation of closing on high-temperature reheat pipe road
Set steam turbine red switch to start high temperature reheated steam hydrophobic pipeline 33 between device 17, high temperature reheated steam is started in steam turbine red switch
3rd pneumatic draining valve 34 is set on hydrophobic pipeline 33；
Second step, closing high pressure main steam valve 11, main steam Pneumatic steam trap valve 14, steam discharge Pneumatic steam trap valve 23 and high temperature are again
The hydrophobic pneumatic operated valve 31 of vapours；The manual drain valve 13 of main steam, the manual drain valve 22 of steam discharge, high temperature reheated steam is opened to dredge manually
Water valve 30, the first Pneumatic steam trap valve 18, the second Pneumatic steam trap valve 26 and the 3rd Pneumatic steam trap valve 34, draining shut-off valve 36；
3rd step, igniting starts coal fired power generation main boiler, and what is produced in Initial Stage after Ignition, major steam line 9 is hydrophobic through the
One pneumatic draining valve 18 is discharged into produced in air suspended type flash vessel 17, high pressure cylinder exhaust line 19 hydrophobic through the second pneumatic draining
Valve 26 is discharged into produced in air suspended type flash vessel 17, high-temperature reheat pipe road 27 hydrophobic through the row of the 3rd pneumatic draining valve 34
Enter air suspended type flash vessel 17, when in the persistently overheating boosting of coal fired power generation main boiler, major steam line 9 or high pressure cylinder exhaust line 19
Vapor (steam) temperature when being more than 50 DEG C higher than 250 DEG C and the degree of superheat, open corresponding main steam to turbine shaft gland sealing steam supply regulation station
Electronic shut-off valve 42 or high pressure cylinder exhaust line to the electronic shut-off valve 45 of turbine shaft gland sealing steam supply regulation station are provided to steam turbine
Gland steam；
4th step, steam turbine and condenser start to vacuumize；
5th step, when the absolute pressure in steam turbine and condenser reaches 15 kPas, close the first Pneumatic steam trap valve 18,
Second Pneumatic steam trap valve 26, the 3rd Pneumatic steam trap valve 34 and draining shut-off valve 36；Open main steam Pneumatic steam trap valve 14, steam discharge gas
Dynamic drain valve 23 and high temperature reheated steam Pneumatic steam trap valve 31, it is hydrophobic that condenser starts receiving pipeline；
6th step, coal fired power generation main boiler continue load up and reach steam turbine rolling parameter, then open high pressure main steam
Valve 11, steam turbine enters vapour red switch and startup, in the process, and main steam Pneumatic steam trap valve 14, row are controlled by steam turbine specification
The opening and closing of vapour Pneumatic steam trap valve 23 and high temperature reheated steam Pneumatic steam trap valve 31.
Claims (4)
1. a kind of coal-fired power plant's steam turbine red switch activation system, including coal fired power generation main boiler, steam turbine and air suspended type dilatation
Device（17）, in air suspended type flash vessel（17）On be provided with emptying pipeline（38）, coal fired power generation main boiler include main boiler superheater
（1）, main boiler high temperature reheater（2）With main boiler low-temperature reheater（3）, steam turbine include high pressure cylinder（4）, intermediate pressure cylinder（5）, it is low
Cylinder pressure（6）And condenser（7）, in condenser（7）Delivery port on be provided with condensate pump（8）, in condenser（7）It is upper to set respectively
It is equipped with the first hydrophobic collector（12）, the second hydrophobic collector（21）With the 3rd hydrophobic collector（29）, in main boiler superheater（1）With height
Cylinder pressure（4）On high pressure main steam valve（11）Between be provided with major steam line（9）, in high pressure cylinder（4）With main boiler low temperature again
Hot device（3）Between be provided with high pressure cylinder exhaust line（19）, in intermediate pressure cylinder（5）On middle pressure reheating main steam valve（49）With main boiler
High temperature reheater（2）Between be provided with high-temperature reheat pipe road（27）, it is characterised in that in major steam line（9）Upper concatenation
There is major steam line threeway（10）, in major steam line threeway（10）Mesopore and the first hydrophobic collector（12）Between be provided with master
Steam drainage pipe（46）, in main steam drain pipe（46）On be respectively arranged with the manual drain valve of main steam（13）It is pneumatic with main steam
Drain valve（14）, in the manual drain valve of main steam（13）With main steam Pneumatic steam trap valve（14）Between main steam drain pipe（46）
On be serially connected with main steam hydrophobic pipeline threeway（15）, in main steam hydrophobic pipeline threeway（15）Mesopore and air suspended type flash vessel
（17）Between be provided with steam turbine main steam hydrophobic pipeline bypass（16）, in the bypass of steam turbine main steam hydrophobic pipeline（16）On set
It is equipped with the first pneumatic draining valve（18）；In high pressure cylinder exhaust line（19）On be serially connected with exhaust line threeway（20）, in steam discharge
Pipeline threeway（20）Mesopore and the second hydrophobic collector（21）Between be provided with steam discharge drain pipe（47）, in steam discharge drain pipe（47）
On be respectively arranged with the manual drain valve of steam discharge（22）With steam discharge Pneumatic steam trap valve（23）, in the manual drain valve of steam discharge（22）With steam discharge
Pneumatic steam trap valve（23）Between steam discharge drain pipe（47）On be serially connected with steam discharge hydrophobic pipeline threeway（24）, in steam discharge hydrophobic pipeline
Threeway（24）Mesopore and air suspended type flash vessel（17）Between be provided with turbine discharge hydrophobic pipeline bypass（25）, in steam turbine
Steam discharge hydrophobic pipeline is bypassed（25）On be provided with the second pneumatic draining valve（26）；On high-temperature reheat pipe road（27）Upper concatenation
There is the threeway of high-temperature reheat pipe road（28）, in the threeway of high-temperature reheat pipe road（28）Mesopore and the 3rd hydrophobic collector（29）
Between be provided with high temperature reheated steam hydrophobic pipeline（48）, in high temperature reheated steam hydrophobic pipeline（48）On be respectively arranged with high temperature
The manual drain valve of reheated steam（30）With high temperature reheated steam Pneumatic steam trap valve（31）, in the manual drain valve of high temperature reheated steam
（30）With high temperature reheated steam Pneumatic steam trap valve（31）Between high temperature reheated steam hydrophobic pipeline（48）On be provided with high temperature again
The hydrophobic threeway of vapours pipeline（32）, in the hydrophobic threeway in high-temperature reheat pipe road（32）Mesopore and air suspended type flash vessel（17）
Between be provided with steam turbine high-temperature reheated steam hydrophobic pipeline bypass（33）, in the bypass of steam turbine high-temperature reheated steam hydrophobic pipeline
（33）On be provided with the 3rd pneumatic draining valve（34）.
2. a kind of coal-fired power plant's steam turbine red switch activation system according to claim 1, it is characterised in that in condenser
（7）Delivery port and air suspended type flash vessel（17）Between be provided with discharge pipe line（35）, in discharge pipe line（35）On the row of being provided with
Water shut-off valve（36）And multilevel water seal（37）, in air suspended type flash vessel（17）On be provided with emptying pipeline（38）.
3. a kind of coal-fired power plant's steam turbine red switch activation system according to claim 1 or 2, it is characterised in that main steaming
Vapor pipeline（9）On be provided with another major steam line threeway（39）, another major steam line threeway（39）Mesopore on be connected with
Turbine shaft seal steam supply pipeline（41）, turbine shaft seal steam supply pipeline（41）The other end be connected with turbine shaft gland sealing steam supply regulation
Stand（40）, in turbine shaft seal steam supply pipeline（41）On be provided with the electronic shut-off valve of shaft seal steam regulation station（42）；In high pressure cylinder
Exhaust line（19）On be provided with another exhaust line threeway（43）, another exhaust line threeway（43）Mesopore on be connected with it is another
One turbine shaft seal steam supply pipeline（44）, another turbine shaft seal steam supply pipeline（44）The other end and turbine shaft gland sealing steam supply adjust
Section station（40）Connection, in another turbine shaft seal steam supply pipeline（44）On be provided with another electronic shut-off valve of shaft seal steam regulation station
（45）.
4. a kind of coal-fired power plant's steam turbine red switch starts method, comprise the following steps：
The first step, in major steam line（9）Upper concatenation major steam line threeway（10）, in major steam line threeway（10）Mesopore
With the first hydrophobic collector（12）Between set main steam drain pipe（46）, in main steam drain pipe（46）It is upper that main steam is set respectively
Manual drain valve（13）With main steam Pneumatic steam trap valve（14）, in the manual drain valve of main steam（13）With main steam Pneumatic steam trap valve
（14）Between main steam drain pipe（46）Upper concatenation main steam hydrophobic pipeline threeway（15）, in main steam hydrophobic pipeline threeway
（15）Mesopore with closing air suspended type flash vessel（17）Between the bypass of steam turbine main steam hydrophobic pipeline is set（16）, in steamer
Owner's steam drainage pipeline is bypassed（16）The first pneumatic draining valve of upper setting（18）；In high pressure cylinder exhaust line（19）Upper concatenation
Exhaust line threeway（20）, in exhaust line threeway（20）Mesopore and the second hydrophobic collector（21）Between set steam discharge drain pipe
（47）, in steam discharge drain pipe（47）It is upper that the manual drain valve of steam discharge is set respectively（22）With steam discharge Pneumatic steam trap valve（23）, in steam discharge
Manual drain valve（22）With steam discharge Pneumatic steam trap valve（23）Between steam discharge drain pipe（47）Upper concatenation steam discharge hydrophobic pipeline threeway
（24）, in steam discharge hydrophobic pipeline threeway（24）Mesopore with closing air suspended type flash vessel（17）Between set turbine discharge dredge
Water lines are bypassed（25）, in the bypass of turbine discharge hydrophobic pipeline（25）The second pneumatic draining valve of upper setting（26）；In high temperature
Reheated steam pipeline（27）Upper concatenation high-temperature reheat pipe road threeway（28）, in the threeway of high-temperature reheat pipe road（28）In
The hydrophobic collectors of Kong Yu tri-（29）Between set high temperature reheated steam hydrophobic pipeline（48）, in high temperature reheated steam hydrophobic pipeline
（48）It is upper that the manual drain valve of high temperature reheated steam is set respectively（30）With high temperature reheated steam Pneumatic steam trap valve（31）, in high temperature again
The manual drain valve of vapours（30）With high temperature reheated steam Pneumatic steam trap valve（31）Between high temperature reheated steam hydrophobic pipeline
（48）The upper setting hydrophobic threeway in high-temperature reheat pipe road（32）, in the hydrophobic threeway in high-temperature reheat pipe road（32）Mesopore with
The air suspended type flash vessel of closing（17）Between the bypass of steam turbine high-temperature reheated steam hydrophobic pipeline is set（33）, in steam turbine high-temperature
Reheated steam hydrophobic pipeline is bypassed（33）The 3rd pneumatic draining valve of upper setting（34）；
Second step, closing high pressure main steam valve（11）, main steam Pneumatic steam trap valve（14）, steam discharge Pneumatic steam trap valve（23）And high temperature
Reheated steam Pneumatic steam trap valve（31）；Open the manual drain valve of main steam（13）, the manual drain valve of steam discharge（22）, high temperature reheating steam
The manual drain valve of vapour（30）, the first pneumatic draining valve（18）, the second pneumatic draining valve（26）With the 3rd pneumatic draining valve
（34）, draining shut-off valve（36）；
3rd step, igniting starts coal fired power generation main boiler, in Initial Stage after Ignition, major steam line（9）Middle generation it is hydrophobic through first
Pneumatic draining valve（18）It is discharged into air suspended type flash vessel（17）, high pressure cylinder exhaust line（19）Middle generation it is hydrophobic pneumatic through second
Hydrophobic valve（26）It is discharged into air suspended type flash vessel（17）, high-temperature reheat pipe road（27）Middle generation it is hydrophobic through the 3rd it is pneumatic dredge
Penstock（34）It is discharged into air suspended type flash vessel（17）, when the persistently overheating boosting of coal fired power generation main boiler, major steam line（9）Or it is high
Cylinder pressure exhaust line（19）In vapor (steam) temperature when being more than 50 DEG C higher than 250 DEG C and the degree of superheat, open corresponding main steam to vapour
The electronic shut-off valve of turbine shaft seal steam regulation station（42）Or high pressure cylinder exhaust line is to another electronic shut-off of shaft seal steam regulation station
Valve（45）Gland steam is provided to steam turbine；
4th step, steam turbine and condenser start to vacuumize；
5th step, when the absolute pressure in steam turbine and condenser reaches 15 kPas, close the first pneumatic draining valve（18）、
Second pneumatic draining valve（26）, the 3rd pneumatic draining valve（34）With draining shut-off valve（36）；Open main steam pneumatic draining
Valve（14）, steam discharge Pneumatic steam trap valve（23）With high temperature reheated steam Pneumatic steam trap valve（31）, it is hydrophobic that condenser starts receiving pipeline；
6th step, coal fired power generation main boiler continue load up and reach steam turbine rolling parameter, then open high pressure main steam valve
（11）, steam turbine enters vapour red switch and startup, in the process, by steam turbine specification control main steam Pneumatic steam trap valve（14）、
Steam discharge Pneumatic steam trap valve（23）With high temperature reheated steam Pneumatic steam trap valve（31）Opening and closing.
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