CN205977283U - Coal -fired power plant's steam turbine dashes changes start -up system - Google Patents
Coal -fired power plant's steam turbine dashes changes start -up system Download PDFInfo
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- CN205977283U CN205977283U CN201620414189.3U CN201620414189U CN205977283U CN 205977283 U CN205977283 U CN 205977283U CN 201620414189 U CN201620414189 U CN 201620414189U CN 205977283 U CN205977283 U CN 205977283U
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Abstract
The utility model discloses a coal -fired power plant's steam turbine dashes changes start -up system has solved large -scale coal -fired power plant and has been equipped with the big problem many with the occupation of land of equipment investment that auxiliary boiler existed. It is parallelly connected to set up one set of hydrophobic collecting system and condenser, controls alone operation or withdraws from the switching of operation through the valve. Behind hydrophobic entering flash vessel, because the differential pressure is to normal atmospheric pressure, the pressure release that expands fast, few some saturated steam pass through during emptying pipeline discharges the atmosphere with the form of steam, and most saturated state hot water is from drain line (35) of flash vessel lower part, and through drainage shut -off valve (36), arrange to the female pipe of condensate pump's entry multistage water seal (37), after the condenser evacuation, close this three valve, cut off the atmosphere formula and start hydrophobic flash vessel (17) and main steam pipe way (9), the intercommunication of high pressure cylinder dump line (19) and high temperature reheat steam pipeline (27) prevents the high -temperature steam leakage. The simple structure of this system, equipment cost is low.
Description
Technical field
The present invention relates to a kind of activation system of coal-fired power plant steam turbine, supply turbine shaft seal particularly to a kind of nothing is outer
The steam turbine red switch activation system of steam and its startup method.
Background technology
Typically it is each equipped with starting trouble in coal-fired power plant, the effect of starting trouble is to start in steam turbine red switch
Before, provide gland steam for steam turbine, make steam turbine and condenser complete evacuation so as to can reclaim from steam turbine and fire coal
Hydrophobic on jet chimney between generating main boiler, and then reach the purpose of steam turbine red switch startup.In prior art, steamer
Arbor envelope vapour parameter has concrete strict requirements, usually 250 DEG C about, and steam superheat requires more than 50 DEG C.In fire coal
In a period of time of generating main boiler Initial Stage after Ignition, the steam of boiler output is to meet turbine shaft seal vapour parameter request
, so, typically large-scale coal-fired power plant needs to be equipped with 1-2 platform starting trouble, there is equipment investment greatly and more than land occupation
Problem.
Content of the invention
The invention provides a kind of coal-fired power plant steam turbine red switch activation system, solve large-scale coal-fired power plant and be equipped with
Technical problem greatly and more than land occupation for the equipment investment existing for starting trouble.
The present invention is to solve above technical problem by the following technical programs：
A kind of coal-fired power plant steam turbine red switch activation system, expands including coal fired power generation main boiler, steam turbine and air suspended type
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 includes high pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder and condenser, going out in condenser
Condensate pump is provided with the mouth of a river, the first hydrophobic collector, the second hydrophobic collector and the 3rd is respectively arranged with condenser hydrophobic
Collector, is provided with major steam line, in high pressure cylinder and master between the high pressure main steam valve on main boiler superheater and high pressure cylinder
It is provided with high pressure cylinder exhaust line, in the middle pressure reheating main steam valve on intermediate pressure cylinder and main boiler high temperature between Low Temperature Reheater
It is provided with high-temperature reheat pipe road between reheater, major steam line threeway is serially connected with major steam line, in main steam
It is provided with main steam drain pipe between the mesopore of pipeline threeway and the first hydrophobic collector, main steam drain pipe is respectively arranged with
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
It is provided with the bypass of steam turbine main steam hydrophobic pipeline between device, the bypass of steam turbine main steam hydrophobic pipeline is provided with the first gas
Dynamic hydrophobic valve；Exhaust line threeway is serially connected with high pressure cylinder exhaust line, dredges in the mesopore of exhaust line threeway and second
It is provided with steam discharge drain pipe between water collector, the manual drain valve of steam discharge is respectively arranged with steam discharge drain pipe and steam discharge is pneumatic thin
Water valve, is serially connected with steam discharge hydrophobic pipeline three on the steam discharge drain pipe between the manual drain valve of steam discharge and steam discharge Pneumatic steam trap valve
Logical, it is provided with the bypass of high pressure cylinder steam discharge hydrophobic pipeline between the mesopore and air suspended type flash vessel of steam discharge hydrophobic pipeline threeway,
It is provided with the second pneumatic draining valve in the bypass of turbine discharge hydrophobic pipeline；High-temperature reheat pipe road is serially connected with high temperature
Reheated steam pipeline threeway, is provided with high temperature reheating between the mesopore and the 3rd hydrophobic collector of the threeway of high-temperature reheat pipe road
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
The hydrophobic pneumatic operated valve of vapourss, 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 vapourss hydrophobic pipeline, in the hydrophobic threeway in high-temperature reheat pipe road
It is provided with the bypass of steam turbine high-temperature reheated steam hydrophobic pipeline, in steam turbine high-temperature reheated steam between hole and air suspended type flash vessel
It is provided with the 3rd Pneumatic steam trap valve in hydrophobic pipeline bypass.
It is provided with discharge pipe line between the outlet 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.
Another major steam line threeway is provided with major steam line, the mesopore of another major steam line threeway is connected with
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；High pressure cylinder exhaust line is provided with another
Exhaust line three, the mesopore of another exhaust line threeway is connected with another turbine shaft seal steam supply pipeline, another turbine shaft
The other end of gland sealing steam supply pipeline is connected with turbine shaft gland sealing steam supply regulation station, is provided with another turbine shaft seal steam supply pipeline
The electronic shut-off valve of another shaft seal steam regulation station.
A kind of steam turbine red switch of coal-fired power plant starts method, comprises the following steps：
The first step, concatenation major steam line threeway on major steam line, in the mesopore and first of major steam line threeway
Between hydrophobic collector, main steam drain pipe is set, the hydrophobic hand-operated valve of main steam and main steam are respectively provided with main steam drain pipe
Hydrophobic pneumatic operated valve, concatenates main steam on the main steam drain pipe between the hydrophobic hand-operated valve of main steam pneumatic operated valve hydrophobic with main steam
Hydrophobic pipeline threeway, arranges steam turbine red switch between the mesopore and the air suspended type flash vessel of closing of main steam hydrophobic pipeline threeway
Start main steam hydrophobic pipeline, start in steam turbine red switch and on main steam hydrophobic pipeline, the first operated pneumatic valve is set；In high pressure cylinder
Exhaust line threeway is concatenated, setting steam discharge is hydrophobic between the mesopore and the second hydrophobic collector of exhaust line threeway on exhaust line
Pipe, is respectively provided with the hydrophobic hand-operated valve of steam discharge and the hydrophobic pneumatic operated valve of steam discharge, in the hydrophobic hand-operated valve of steam discharge and row on steam discharge drain pipe
On steam discharge drain pipe between the hydrophobic pneumatic operated valve of vapour concatenate steam discharge hydrophobic pipeline threeway, steam discharge hydrophobic pipeline threeway mesopore with
Between the air suspended type flash vessel of closing, setting steam turbine red switch starts steam discharge hydrophobic pipeline, starts steam discharge in steam turbine red switch hydrophobic
Second operated pneumatic valve is arranged on pipeline；High pressure reheated steam pipeline threeway is concatenated on high pressure reheated steam pipeline, in high pressure again
Between the mesopore of vapourss pipeline threeway and the 3rd hydrophobic collector, high pressure reheated steam hydrophobic pipeline is set, in high pressure reheated steam
The hydrophobic hand-operated valve of high pressure reheated steam and the hydrophobic pneumatic operated valve of high pressure reheated steam are respectively provided with hydrophobic pipeline, steam in high pressure reheating
High pressure reheating is arranged on the high pressure reheated steam hydrophobic pipeline between the hydrophobic hand-operated valve of vapour and the hydrophobic pneumatic operated valve of high pressure reheated steam
The hydrophobic threeway of steam pipework, is arranged between the mesopore and the air suspended type flash vessel of closing of the hydrophobic threeway of high pressure reheated steam pipeline
Steam turbine red switch starts high pressure reheated steam hydrophobic pipeline, starts in steam turbine red switch and arranges on high pressure reheated steam hydrophobic pipeline
3rd operated pneumatic valve；
Second step, closing high pressure main steam valve, the hydrophobic pneumatic operated valve of main steam, the hydrophobic pneumatic operated valve of steam discharge and high temperature reheated steam
Hydrophobic pneumatic operated valve；Open the hydrophobic hand-operated valve of main steam, the hydrophobic hand-operated valve of steam discharge, the hydrophobic hand-operated 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, ignition trigger coal fired power generation main boiler, in Initial Stage after Ignition, major steam line produce hydrophobic through first
Operated pneumatic valve enters air suspended type flash vessel, and in high pressure cylinder exhaust line, the hydrophobic of generation enters air suspended type expansion through the second operated pneumatic valve
Container, in high-temperature reheat pipe road, the hydrophobic of generation enters air suspended type flash vessel through the 3rd operated pneumatic valve, as coal fired power generation master
Vapor (steam) temperature in the persistently overheating boosting of boiler, major steam line or high pressure cylinder exhaust line is higher than 250 DEG C and the degree of superheat is more than
When 50 DEG C, open corresponding main steam to the electronic shut-off valve of turbine shaft gland sealing steam supply regulation station or high pressure cylinder exhaust line to steamer
The electronic shut-off valve of arbor gland sealing steam supply regulation station provides gland steam to steam turbine；
4th step, steam turbine and condenser start evacuation；
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 the hydrophobic pneumatic operated valve of main steam, the hydrophobic pneumatic operated valve of steam discharge and
The hydrophobic pneumatic operated valve of high temperature reheated steam, 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, controls the hydrophobic pneumatic operated valve of main steam, steam discharge to dredge by steam turbine description
Water pneumatic operated valve and the opening and closing of the hydrophobic pneumatic operated valve of high temperature reheated steam.
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, empty pipeline；Steam turbine main steam hydrophobic pipeline bypasses, the first Pneumatic steam trap valve
Door, high pressure cylinder steam discharge hydrophobic pipeline bypasses, the second pneumatic draining valve, and steam turbine high-temperature reheated steam hydrophobic pipeline bypasses, the
Three Pneumatic steam trap valves.This novel system, structure is simple, and equipment manufacturing cost is low, installs and using all very convenient.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
A kind of coal-fired power plant steam turbine red switch activation system, expands including coal fired power generation main boiler, steam turbine and air suspended type
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 includes high pressure cylinder 4, intermediate pressure cylinder 5, low pressure (LP) cylinder 6 and condenser
7, condensate pump 8 is provided with the outlet of condenser 7, the first hydrophobic collector 12, second is respectively arranged with condenser 7
Hydrophobic collector 21 and the 3rd hydrophobic collector 29, are arranged between the high pressure main steam valve 11 on main boiler superheater 1 and high pressure cylinder 4
There is major steam line 9, be provided with high pressure cylinder exhaust line 19 between high pressure cylinder 4 and main boiler low-temperature reheater 3, in intermediate pressure cylinder
It is provided with high-temperature reheat pipe road 27, in main steam between middle pressure reheating main steam valve 49 on 5 and main boiler high temperature reheater 2
Major steam line threeway 10 is serially connected with pipeline 9, sets between the mesopore and the first hydrophobic collector 12 of major steam line threeway 10
It is equipped with main steam drain pipe 46, the manual drain valve of main steam 13 is respectively arranged with main steam drain pipe 46 and main steam is pneumatic
Drain valve 14, is serially connected with the main steam drain pipe 47 between the manual drain valve of main steam 13 and main steam Pneumatic steam trap valve 14
Main steam hydrophobic pipeline threeway 15, is provided with vapour between the mesopore and air suspended type flash vessel 17 of main steam hydrophobic pipeline threeway 15
Turbine main steam hydrophobic pipeline bypass 16, is provided with the first pneumatic draining valve in steam turbine main steam hydrophobic pipeline bypass 16
18；Exhaust line threeway 20 is serially connected with high pressure cylinder exhaust line 19, hydrophobic with second in the mesopore of exhaust line threeway 20
It is provided with steam discharge drain pipe 47 between collector 21, the manual drain valve of steam discharge 22 and steam discharge are respectively arranged with steam discharge drain pipe 47
Pneumatic steam trap valve 23, the row of being serially connected with the steam discharge drain pipe 47 between the manual drain valve of steam discharge 22 and steam discharge Pneumatic steam trap valve 23
Vapour hydrophobic pipeline threeway 24, is provided with high pressure cylinder row between the mesopore and air suspended type flash vessel 17 of steam discharge hydrophobic pipeline threeway 24
Vapour hydrophobic pipeline bypass 25, is provided with the second pneumatic draining valve 26 in 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
It is provided with high temperature reheated steam hydrophobic pipeline 48, between 3rd hydrophobic collector 29 on high temperature reheated steam hydrophobic pipeline 48 respectively
It is provided with the manual drain valve of high temperature reheated steam 30 and the hydrophobic pneumatic operated valve of high temperature reheated steam 31, dredge manually in high temperature reheated steam
It is provided with high temperature reheating on high temperature reheated steam hydrophobic pipeline 48 between water valve 30 and high temperature reheated steam Pneumatic steam trap valve 31
The hydrophobic threeway of steam pipework 32, is arranged between the mesopore and air suspended type flash vessel 17 of the hydrophobic threeway in high-temperature reheat pipe road 32
There is steam turbine high-temperature reheated steam hydrophobic pipeline bypass 33, steam turbine high-temperature reheated steam hydrophobic pipeline bypass 33 is provided with
3rd Pneumatic steam trap valve 34.
It is provided with discharge pipe line 35 between the outlet and air suspended type flash vessel 17 of condenser 7, on discharge pipe line 35
It is provided with draining shut-off valve 36 and multilevel water seal 37, emptying pipeline 38 is provided with air suspended type flash vessel 17.
Another major steam line threeway 39 is provided with major steam line 9, on the mesopore of another major steam line threeway 39
It is connected with turbine shaft seal steam supply pipeline 41, the other end of turbine shaft seal steam supply pipeline 41 is connected with turbine shaft gland sealing steam supply and adjusts
Section station 40, is provided with the electronic shut-off valve of shaft seal steam regulation station 42 on turbine shaft seal steam supply pipeline 41；In high pressure cylinder steam discharge
Another exhaust line threeway 43 is provided with pipeline 19, the mesopore of another exhaust line threeway 43 is connected with another turbine shaft
Gland sealing steam supply pipeline 43, the other end of another turbine shaft seal steam supply pipeline 43 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 43.
A kind of steam turbine red switch of coal-fired power plant starts method, comprises the following steps：
The first step, on major steam line 9 concatenate major steam line threeway 10, major steam line threeway 10 mesopore with
Between first hydrophobic collector 12, main steam drain pipe 46 is set, main steam is respectively provided with main steam drain pipe 46 hydrophobic manually
Valve 13 and the hydrophobic pneumatic operated valve of main steam 14, the main steam between the hydrophobic hand-operated valve of main steam 13 and the hydrophobic pneumatic operated valve of main steam 14
Main steam hydrophobic pipeline threeway 15 is concatenated on drain pipe 46, in mesopore and the air suspended type closed of main steam hydrophobic pipeline threeway 15
Between flash vessel 17, setting steam turbine red switch starts main steam hydrophobic pipeline 16, starts main steam hydrophobic pipeline in steam turbine red switch
First operated pneumatic valve 18 is set on 16；High pressure cylinder exhaust line 19 concatenates exhaust line threeway 20, in exhaust line threeway
Between 20 mesopore and the second hydrophobic collector 21, steam discharge drain pipe 47 is set, steam discharge drain pipe 47 is respectively provided with steam discharge hydrophobic
Hand-operated valve 22 and the hydrophobic pneumatic operated valve of steam discharge 23, the steam discharge between the hydrophobic hand-operated valve of steam discharge 22 and the hydrophobic pneumatic operated valve of steam discharge 23 is hydrophobic
Steam discharge hydrophobic pipeline threeway 24 is concatenated on pipe 47, in mesopore and the air suspended type flash vessel 17 closed of steam discharge hydrophobic pipeline threeway 24
Between setting steam turbine red switch start steam discharge hydrophobic pipeline 25, steam turbine red switch start steam discharge hydrophobic pipeline 25 on arrange second
Operated pneumatic valve 26；High pressure reheated steam pipeline 27 concatenates high pressure reheated steam pipeline threeway 28, in high pressure reheated steam pipe
High pressure reheated steam hydrophobic pipeline 48 is set between the mesopore of road threeway 28 and the 3rd hydrophobic collector 29, dredges in high pressure reheated steam
The hydrophobic hand-operated valve of high pressure reheated steam 30 and the hydrophobic pneumatic operated valve of high pressure reheated steam are respectively provided with water lines 48（31）, in high pressure
The hydrophobic hand-operated valve of reheated steam（30）High pressure reheated steam hydrophobic pipeline 48 and the hydrophobic pneumatic operated valve of high pressure reheated steam 31 between
The upper setting hydrophobic threeway 32 of high pressure reheated steam pipeline is big with close in the mesopore of the hydrophobic threeway 32 of high pressure reheated steam pipeline
Between gas formula flash vessel 17, setting steam turbine red switch starts high pressure reheated steam hydrophobic pipeline 33, starts high pressure in steam turbine red switch
3rd operated pneumatic valve 34 is arranged on reheated steam hydrophobic pipeline 33；
Second step, closing high pressure main steam valve 11, the hydrophobic pneumatic operated valve of main steam 14, the hydrophobic pneumatic operated valve of steam discharge 23 and high temperature are again
The hydrophobic pneumatic operated valve of vapourss 31；Open the hydrophobic hand-operated valve of main steam 13, the hydrophobic hand-operated valve of steam discharge 22, the hydrophobic handss of high temperature reheated steam
Dynamic 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, ignition trigger coal fired power generation main boiler, produce in Initial Stage after Ignition, major steam line 9 hydrophobic through the
One operated pneumatic valve 18 enters air suspended type flash vessel 17, in high pressure cylinder exhaust line 19 produce hydrophobic through the second operated pneumatic valve 26 row
Enter air suspended type flash vessel 17, in high-temperature reheat pipe road 27, the hydrophobic of generation enters air suspended type dilatation through the 3rd operated pneumatic valve 34
Device 17, when the persistently overheating boosting of coal fired power generation main boiler, the vapor (steam) temperature in major steam line 9 or high pressure cylinder exhaust line 19 is high
In 250 DEG C and the degree of superheat be more than 50 DEG C when, open corresponding main steam to the electronic shut-off valve 42 of turbine shaft gland sealing steam supply regulation station
Or high pressure cylinder exhaust line provides gland steam to the electronic shut-off valve 45 of turbine shaft gland sealing steam supply regulation station to steam turbine；
4th step, steam turbine and condenser start evacuation；
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 the hydrophobic pneumatic operated valve of main steam 14, steam discharge is dredged
Water pneumatic operated valve 23 and the hydrophobic pneumatic operated valve of high temperature reheated steam 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, controls the hydrophobic pneumatic operated valve of main steam 14, row by steam turbine description
The hydrophobic pneumatic operated valve of vapour 23 and the opening and closing of the hydrophobic pneumatic operated valve of high temperature reheated steam 31.
The principle of the present invention and function：A set of hydrophobic collection system is set, and it is in parallel with condenser, and is controlled by valve
Independent operating processed or switching out of service, the parameter realizing coal-fired power plant's main boiler ignition trigger to output steam reaches vapour
Turbine shaft seal steam required in this period, reclaimed function main, that reheaing steam pipe is hydrophobic.This set draining system each composition portion
The function of dividing and operation principle are as follows：One independent air suspended type starts hydrophobic development unit 17, and function is to reclaim autonomous, reheating
Jet chimney hydrophobic, operation principle be when hydrophobic entrance flash vessel after, because pressure is down to normal atmospheric pressure, rapid expanding
Pressure release, small part saturated vapor passes through emptying pipeline and is discharged into as a vapor in air, and most of saturated mode hot water is from expansion
The discharge pipe line 35 of lower vessel portion, through draining shut-off valve 36, multilevel water seal 37 row is to the entrance main pipe of condensate pump；Draining turns off
Valve 36 when flash vessel is out of service, can play the effect of cut-off flash vessel and condensate pump entrance main pipe, multilevel water seal profit
With water-seal principle, after can effectively preventing condenser evacuation, the air in flash vessel leaks into condensate pump entrance main pipe.First
Pneumatic draining valve 18, the function of the second pneumatic draining valve 26 and the 3rd Pneumatic steam trap valve 34 is, when condenser evacuation with
Afterwards, these three valves are closed, cut-off air suspended type starts hydrophobic development unit 17 and major steam line 9, high pressure cylinder exhaust line 19 He
The connection on high-temperature reheat pipe road 27, prevents high-temperature steam from leaking.
Claims (3)
1. a kind of coal-fired power plant 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 includes main boiler superheater
（1）, main boiler high temperature reheater（2）With main boiler low-temperature reheater（3）, steam turbine includes high pressure cylinder（4）, intermediate pressure cylinder（5）, low
Cylinder pressure（6）And condenser（7）, in condenser（7）Outlet on be provided with condensate pump（8）, in condenser（7）Upper 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）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（47）
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 high pressure cylinder steam discharge hydrophobic pipeline bypass（25）, in steam turbine
Steam discharge hydrophobic pipeline bypasses（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）The hydrophobic pneumatic operated valve with high temperature reheated steam（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 vapourss 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 steam trap valve（34）.
2. a kind of coal-fired power plant steam turbine red switch activation system according to claim 1 is it is characterised in that in condenser
（7）Outlet 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 steam turbine red switch activation system according to claim 1 and 2 is 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 adjust
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 another
One turbine shaft seal steam supply pipeline（43）, another turbine shaft seal steam supply pipeline（43）The other end and turbine shaft gland sealing steam supply adjust
Section station（40）Connection, in another turbine shaft seal steam supply pipeline（43）On be provided with the electronic shut-off valve of another shaft seal steam regulation station
（45）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620414189.3U CN205977283U (en) | 2016-05-10 | 2016-05-10 | Coal -fired power plant's steam turbine dashes changes start -up system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620414189.3U CN205977283U (en) | 2016-05-10 | 2016-05-10 | Coal -fired power plant's steam turbine dashes changes start -up system |
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| Publication Number | Publication Date |
|---|---|
| CN205977283U true CN205977283U (en) | 2017-02-22 |
Family
ID=58019204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620414189.3U Withdrawn - After Issue CN205977283U (en) | 2016-05-10 | 2016-05-10 | Coal -fired power plant's steam turbine dashes changes start -up system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781631A (en) * | 2016-05-10 | 2016-07-20 | 中国能源建设集团山西省电力勘测设计院有限公司 | Starting system and starting method for steam turbine running of coal-fired power plant |
| CN110809667A (en) * | 2017-06-30 | 2020-02-18 | 诺沃皮尼奥内技术股份有限公司 | Method and system for safe gas turbine startup |
| CN112648022A (en) * | 2020-12-06 | 2021-04-13 | 中国大唐集团科学技术研究院有限公司 | Method for preventing turbo generator set from seriously overspeed |
-
2016
- 2016-05-10 CN CN201620414189.3U patent/CN205977283U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781631A (en) * | 2016-05-10 | 2016-07-20 | 中国能源建设集团山西省电力勘测设计院有限公司 | Starting system and starting method for steam turbine running of coal-fired power plant |
| CN110809667A (en) * | 2017-06-30 | 2020-02-18 | 诺沃皮尼奥内技术股份有限公司 | Method and system for safe gas turbine startup |
| CN110809667B (en) * | 2017-06-30 | 2022-04-19 | 诺沃皮尼奥内技术股份有限公司 | Method and system for safe gas turbine startup |
| CN112648022A (en) * | 2020-12-06 | 2021-04-13 | 中国大唐集团科学技术研究院有限公司 | Method for preventing turbo generator set from seriously overspeed |
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Granted publication date: 20170222 Effective date of abandoning: 20171103 |