CN209604098U - A kind of quick start system of energy-efficient Turbo-generator Set - Google Patents
A kind of quick start system of energy-efficient Turbo-generator Set Download PDFInfo
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- CN209604098U CN209604098U CN201920186887.6U CN201920186887U CN209604098U CN 209604098 U CN209604098 U CN 209604098U CN 201920186887 U CN201920186887 U CN 201920186887U CN 209604098 U CN209604098 U CN 209604098U
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Abstract
The utility model relates to a kind of quick start systems of energy-efficient Turbo-generator Set, including No.1 unit and No. two units；Heating system is arranged in the system, the high-pressure exhaust pipe road of two units is connected, every unit is in cold start, the high pressure steam discharge of adjacent machine can be led into the unit by heating system and carry out high pressure cylinder, high-pressure exhaust pipe road, the pre-warm of reheater and reheater hot arc pipeline, it is capable of providing steam parameter and required steam flow required for realizing rotationimpulsing of intermediate pressure cylinder, while the main steam condition increasing temperature and pressure of superheater, carry out rotationimpulsing of intermediate pressure cylinder, sufficiently heating expansion is carried out to intermediate pressure cylinder, prevent the bearing at intermediate pressure cylinder both ends from generating biggish axis vibration because of impact and rub, the starting time of unit is also shortened simultaneously；For superheater while increasing temperature and pressure, the high pressure steam discharge of adjacent machine carries out reheater, prevents reheater dry combustion method, extends service life；Improve the flexibility of unit.
Description
Technical field
The utility model relates to a kind of quick start systems of energy-efficient Turbo-generator Set, belong to opening for thermal power plant
Dynamic system.
Background technique
When existing Turbo-generator Set configuration level-one bypass, high-pressure cylinder starting-up mode is generallyd use.Unit is opened in cold conditions
When dynamic, high pressure exhaust temperature is lower and steam flow is few, while the pipeline of reheating cold segment pipe and reheating hot pipe is long, can not
Reheating cold segment pipe, reheating hot pipe and intermediate pressure cylinder are sufficiently heated, reheating cold segment pipe when leading to initial start stage, again
Hot arc pipeline and intermediate pressure cylinder expansion are insufficient, pipe vibration amplitude occur greatly and intermediate pressure cylinder both ends rotor occurs sound and touches
Mill, can only take extension warm-up period, such as application No. is 201520894273.5 Chinese patent, increase the machine expense that opens, and drop
Low unit safety.
After ignition of the boiler during increasing temperature and pressure, before steam turbine red switch, reheater is in " dry combustion method " state, reduces reheater
Service life.
After boiler cold-state rinses, it can only just be able to achieve hot flushing after firing, the heating speed of boiler is slow, increasing temperature and pressure
Rate is low, extends the starting time of boiler, reduces economy when unit starting.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and it is reasonable to provide a kind of design
The quick start system of energy-efficient Turbo-generator Set.
The technical scheme in the invention for solving the above technical problem is: a kind of energy-efficient Turbo-generator Set
Quick start system, which is characterized in that including No.1 unit superheater, No.1 unit intermediate pressure cylinder, No.1 unit high pressure cylinder, No.1
Unit reheater, No.1 unit condenser, No. two unit reheaters, No. two unit high pressure cylinders, No. two unit condensers, No. two machines
Group superheater and No. two unit intermediate pressure cylinders；The No.1 unit superheater is high by No.1 Main Steam Pipeline of Unit and No.1 unit
Cylinder pressure connection, and No.1 unit high-pressure main steam regulating valve is installed between No.1 unit superheater and No.1 unit high pressure cylinder,
The No.1 unit high pressure cylinder is connect by No.1 unit high-pressure exhaust pipe road with No.1 unit reheater, and the No.1 unit is again
Hot device is connect by No.1 unit reheating hot pipe with No.1 unit intermediate pressure cylinder, and is pacified in the air inlet of No.1 unit intermediate pressure cylinder
Equipped with pressing main vapour to adjust union valve in No.1 unit；No. two unit superheaters pass through No. two Main Steam Pipeline of Unit and No. two
The connection of unit high pressure cylinder, and the main vapour tune of No. two unit high pressures is installed between No. two unit superheaters and No. two unit high pressure cylinders
Valve is saved, No. two unit high pressure cylinders are connect by No. two unit high-pressure exhaust pipe roads with No. two unit reheaters, and described No. two
Unit reheater is connect by No. two unit reheating hot pipes with No. two unit intermediate pressure cylinders, and No. two unit intermediate pressure cylinders into
Port, which is equipped in No. two units, presses main vapour to adjust union valve；The No.1 unit high-pressure exhaust pipe road passes through heating system pipeline
It is connect with No. two unit high-pressure exhaust pipe roads, and heating system contact electric control valve is installed on heating system pipeline；One
Number the first drain water piping of unit is equipped with No.1 by drawing on No.1 highpressure steam conduit tube, and on the first drain water piping of No.1 unit
The hydrophobic hand stop valve of unit first and the hydrophobic pneumatic control valve of No.1 unit first, and the first drain water piping of No.1 unit connects
Be connected to the hydrophobic development unit of No.1 unit condenser, the second drain water piping of No.1 unit also by being drawn on No.1 highpressure steam conduit tube,
And the hydrophobic hand stop valve of No.1 unit second is installed on the second drain water piping of No.1 unit and No.1 unit second is hydrophobic
Pneumatic control valve, and the second drain water piping of No.1 unit is also connected to the hydrophobic development unit of No.1 unit condenser；No. two machines
The first drain water piping of group is equipped with No. two units by drawing on No. two highpressure steam conduit tubes, and on No. two the first drain water pipings of unit
First hydrophobic hand stop valve and No. two hydrophobic pneumatic stopping valves of unit first, and No. two the first drain water pipings of unit are connected to
The hydrophobic development unit of No. two unit condensers, No. two the second drain water pipings of unit also by being drawn on No. two highpressure steam conduit tubes, and
The hydrophobic hand stop valve of No. two units second is installed on No. two the second drain water pipings of unit and No. two units second are hydrophobic pneumatic
Shut-off valve, and No. two the second drain water pipings of unit are also connected to the hydrophobic development unit of No. two unit condensers.
Furthermore, No.1 unit level-one bypass duct on No.1 Main Steam Pipeline of Unit by drawing, and is connected to one
The No.1 unit three-level temperature-decreased pressure reducer of number unit condenser, and No.1 unit is installed on No.1 unit level-one bypass duct
Level-one bypasses electric control valve, and the No.1 unit three-level temperature-decreased pressure reducer also connects with No.1 unit level-one bypass desuperheat waterpipe
It connects, and No.1 unit level-one bypass desuperheating water pneumatic control valve is installed on No.1 unit level-one bypass desuperheat waterpipe；Two
Number unit level-one bypass duct is connected to No. two units of No. two unit condensers by drawing on No. two Main Steam Pipeline of Unit
Three-level temperature-decreased pressure reducer, and No. two unit level-one bypass electric control valves, institute are installed on No. two unit level-one bypass ducts
It states No. two unit three-level temperature-decreased pressure reducers also to connect with No. two unit level-one bypass desuperheat waterpipes, and by No. two unit level-ones
No. two unit level-one bypass desuperheating water pneumatic control valves are installed on the desuperheat waterpipe of road.
Furthermore, steam pipe road and the external steam supply of No.1 are added by No.1 height in the No.1 unit high-pressure exhaust pipe road
Pipeline is connect with one end of heating system pipeline, and steam pipe road and two are added by No. two height in No. two unit high-pressure exhaust pipe roads
Number externally steam line is connect with the other end of heating system pipeline, and is added in No.1 height and is equipped with No.1 unit on steam pipe road
Two take out Pneumatic check valve, add in No. two height and are equipped with No. two pumping Pneumatic check valves of units two on steam pipe road, externally supply in No.1
No.1 unit heat system external steam supply hand stop valve is installed on steam pipe road, is equipped with two on No. two external steam lines
Number unit heat system external steam supply hand stop valve.
Furthermore, it is added in No.1 height and is also sequentially installed with No.1 unit heat system height on steam pipe road and adds vapour hand
Dynamic shut-off valve, No.1 unit heat system height adds vapour pneumatic control valve and No.1 unit heat system height adds vapour motorized adjustment
Valve；It is added in No. two height and is also sequentially installed with No. two unit heat system height on steam pipe road and adds vapour electric control valve, No. two machines
Group heating system height adds vapour pneumatic control valve and No. two unit heat system height add vapour hand stop valve.
Furthermore, it is pneumatic that No.1 unit heat system external steam supply is also equipped on the external steam line of the No.1
Regulating valve, and No.1 unit heat system pair is installed in the bypass of No.1 unit heat system external steam supply pneumatic control valve
Outer steam supply electric control valve；No. two unit heat system external steam supply electric adjustables are also equipped on described No. two external steam lines
Valve is saved, and No. two unit heat system externals are installed in the bypass of No. two unit heat system external steam supply electric control valves
Steam supply pneumatic control valve.
Furthermore, No. two high-pressure heaters of No.1 unit are added steam pipe road with No.1 height by pipeline and are connect, and even
It is connected to the rear that No.1 unit two takes out Pneumatic check valve, and adds steam pipe road in No. two high-pressure heaters of No.1 unit and No.1 height
Between No. two high-pressure heaters of No.1 unit are installed into vapour electric control valve；No. two high-pressure heaters of No. two units pass through pipeline
Steam pipe road is added with No. two height to connect, and is connected to the rear that No. two units two take out Pneumatic check valve, and at No. two unit two
High-pressure heater and No. two height, which are added, is equipped with No. two high-pressure heaters of No. two units into vapour electric control valve between steam pipe road.
The working method of the quick start system of energy-efficient Turbo-generator Set is as follows:
The No.1 unit superheater is to pass through No.1 unit main steam for water vapour is generated after the boosting of water supply heat temperature raising
Pipeline enters No.1 unit high-pressure main steam regulating valve, when the starting that main steam condition reaches unit requires, No.1 unit high pressure
Main steam control valve is slowly opened according to the control logic of setting, after the water vapour of certain parameter enters No.1 unit high pressure cylinder
Red switch steam turbine carries out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is high along No.1 unit
Pressure blow-off line enters No.1 unit reheater, carries out after increasing temperature and pressure along No.1 unit reheating hot pipe through in No.1 unit
It presses main vapour to adjust union valve and enters No.1 unit intermediate pressure cylinder expansion work, No.1 machine is then entered after low pressure (LP) cylinder expansion work
Group condenser；
No. two unit superheaters are to pass through No. two unit main steams for water vapour is generated after the boosting of water supply heat temperature raising
Pipeline enters No. two unit high-pressure main steam regulating valves, when the starting that main steam condition reaches unit requires, No. two unit high pressures
Main steam control valve is slowly opened according to the control logic of setting, after the water vapour of certain parameter enters No. two unit high pressure cylinders
Red switch steam turbine carries out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is along No. two unit height
Press blow-off line enter No. two unit reheaters, carry out increasing temperature and pressure after along No. two unit reheating hot pipes through in No. two units
It presses main vapour to adjust union valve and enters No. two unit intermediate pressure cylinder expansion works, No. two machines are then entered after low pressure (LP) cylinder expansion work
Group condenser.
The level-one bypass of No.1 unit bypasses electric control valve by No.1 unit level-one bypass duct and No.1 unit level-one
Composition；The level-one bypass of No.1 unit is drawn from No.1 Main Steam Pipeline of Unit, is flowed through through No.1 unit level-one bypass duct
No.1 unit level-one bypasses electric control valve, into the No.1 unit three-level temperature-decreased pressure reducer of No.1 unit condenser, No.1 machine
The desuperheating water that group level-one bypass desuperheat waterpipe comes flows through No.1 unit level-one bypass desuperheating water pneumatic control valve and carries out to steam
Pressure and temperature reducing finally enters No.1 unit condenser.The main function of the level-one bypass of No.1 unit is in the unit starting stage
When, it improves boiler heating, the rate of rise and improves boiler combustion rate, the steam that superheater comes directly is introduced after pressure and temperature reducing
Condenser recycles working medium.
The level-one bypass of No. two units bypasses electric control valve by No. two unit level-one bypass ducts and No. two unit level-ones
Composition；The level-one bypass of No. two units is drawn from No. two Main Steam Pipeline of Unit, is flowed through through No. two unit level-one bypass ducts
No. two unit level-ones bypass electric control valve, into No. two unit three-level temperature-decreased pressure reducers of No. two unit condensers, No. two machines
The desuperheating water that group level-one bypass desuperheat waterpipe comes flows through No. two unit level-one bypass desuperheating water pneumatic control valves and carries out to steam
Pressure and temperature reducing finally enters No. two unit condensers.The main function of the level-one bypass of No. two units is in the unit starting stage
When, it improves boiler heating, the rate of rise and improves boiler combustion rate, the steam that superheater comes directly is introduced after pressure and temperature reducing
Condenser recycles working medium.
No. two high-pressure heaters of No.1 unit heat water supply using steam, it is ensured that the water supply into superheater has
Higher temperature improves the heating starting speed of superheater, shortens the time required for superheater increasing temperature and pressure；No.1 unit is cold
When state starts, it is electronic into vapour that the high pressure steam discharge of No. two units is delivered to No. two high-pressure heaters of No.1 unit by heating system pipeline
Regulating valve heats No. two high-pressure heaters of No.1 unit by controlling its aperture, and water supply is heated to 190 DEG C, is met
Boiler thermal-state rinsing requirement；
No. two high-pressure heaters of No. two units are to be heated using steam to water supply, it is ensured that the water supply into superheater has
There is higher temperature, improve the heating starting speed of superheater, shortens the time required for superheater increasing temperature and pressure；No. two units
When cold start, the high pressure steam discharge of No.1 unit is delivered to No. two high-pressure heaters of No. two units into vapour electricity by heating system pipeline
Dynamic regulating valve heats No. two high-pressure heaters of No. two units, water supply is heated to 190 DEG C by controlling its aperture, full
Sufficient boiler thermal-state rinsing requirement.
No.1 unit in cold start, using heating system pipeline come No. two units high row's steam to high pressure cylinder into
Row falls warm, and warm steam is from the entrance of No.1 unit high-pressure exhaust pipe road, flows backward to No.1 unit the along No.1 unit high pressure cylinder
The second drain water piping of one drain water piping and/or No.1 unit, by controlling the hydrophobic pneumatic control valve of No.1 unit first and/or one
The aperture of number hydrophobic pneumatic control valve of unit second guarantees the pre-warm effect of No.1 unit high pressure cylinder；
No. two units in cold start, using heating system pipeline come No.1 unit high row's steam to high pressure cylinder into
Row falls warm, and warm steam enters from No. two unit high-pressure exhaust pipe roads, flows backward to No. two units the along No. two unit high pressure cylinders
One drain water piping and/or No. two the second drain water pipings of unit, by controlling No. two hydrophobic pneumatic stopping valves of unit first and/or two
The aperture of number hydrophobic pneumatic stopping valve of unit second, guarantees the pre-warm effect of high pressure cylinder.
The quick start system of above-mentioned energy-efficient Turbo-generator Set, its working principles are as follows:
Two unit one operations, another when opening machine, can be used the system and carry out cold start, improves unit and opens machine
Safety and economy.
When No. two units are run, and No.1 unit carries out cold start:
The each auxiliary system of No.1 unit has run well according to relevant regulation, after boiler cold-state rinses qualification,
Hot flushing is carried out to boiler, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the height of No. two units
Pressure vapour leads to No. two high-pressure heaters of No.1 unit and heats to water supply, and feed temperature is risen to 190 DEG C, carries out boiler
Hot flushing.Concrete operations are as follows: successively opening No. two unit heat system external steam supply hand stop valves, No. two unit heats
Corresponding drain valve on system external steam supply electric control valve and heating system contact electric control valve and pipeline, to pipeline and
Valve carries out pre-warm, the thermocouple readings on observation pipeline is paid attention to during pre-warm, it is ensured that pipe temperature and vapor (steam) temperature
Match；Then successively No.1 unit heat system height adds vapour electric control valve to opening, No.1 unit heat system height adds vapour gas
Dynamic regulating valve, No.1 unit heat system height add No. two high-pressure heaters of vapour hand stop valve and No.1 unit into vapour electric adjustable
Valve is saved, No.1 unit heat system height is initially opened and adds No. two high-pressure heaters of vapour pneumatic control valve and No.1 unit into vapour electricity
When dynamic regulating valve, aperture is not too big, first carries out pre-warm to pipeline and valve, after pipe temperature is matched with vapor (steam) temperature, then
No. two high-pressure heaters of standard-sized sheet No.1 unit add vapour pneumatic control valve into vapour electric control valve, by No.1 unit heat system height
Control steam flow, it is ensured that the feedwater outlet temperature of No. two high-pressure heaters of No.1 unit reaches 190 DEG C, carries out to boiler hot
It rinses, achievees the effect that hot flushing.
While boiler carries out hot flushing, the high pressure cylinder of No.1 unit is warmed up, by No.1 unit heat system
It unites external steam supply hand stop valve standard-sized sheet, it is right by controlling the aperture of No.1 unit heat system external steam supply electric control valve
No.1 unit high-pressure exhaust pipe road and No.1 unit high pressure cylinder carry out pre-warm, and the pressure of steam, Bu Yaochao are controlled during pre-warm
0.7MPa is crossed, the too high red switch high pressure rotor of pressure is prevented, with the raising of high pressure cylinder steam pressure and temperature, by No.1 unit
One hydrophobic hand stop valve and the hydrophobic hand stop valve standard-sized sheet of No.1 unit second, it is hydrophobic pneumatic by control No.1 unit first
The aperture of regulating valve and the hydrophobic pneumatic control valve of No.1 unit second controls high pressure cylinder steam pressure and temperature in zone of reasonableness
It is interior.
While high pressure cylinder pre-warming, using heating system to No.1 unit reheater and No.1 unit reheating hot pipe
It is preheated, by adjusting the hydrophobic valve opening on reheater and reheating hot arc official road, achievees the effect that preheating.
It after boiler thermal-state rinses qualification, lights a fire to boiler, boiler carries out increasing temperature and pressure, improves the temperature and pressure of steam
Power.
In No.1 unit high pressure cylinder, No.1 unit high-pressure exhaust pipe road, No.1 unit reheater and No.1 unit reheating heat
After segment pipe pre-warm achievees the effect that requirement, red switch is carried out to intermediate pressure cylinder, starts steam turbine.Steam required for rotationimpulsing of intermediate pressure cylinder
Source is the high pressure steam discharge for the No.1 unit that heating system pipeline provides, and passes through control No.1 unit heat system external steam supply electricity
The aperture of dynamic regulating valve, it is ensured that the pressure and temperature of steam meets steam flow required for rotationimpulsing of intermediate pressure cylinder, and steam turbine is steady
It is scheduled on rated speed, so that the abundant pre-warm expansion of intermediate pressure cylinder.After steam turbine reaches rated speed, electrical test, lubricating oil are carried out
The related works such as system pressure interlock test and leak test, until the swollen difference of intermediate pressure cylinder and intermediate pressure cylinder steam admission side inner wall metal
Temperature reaches requirement and after main steam condition reaches high pressure cylinder rolling parameter requirement, and intermediate pressure cylinder start-up is switched to high pressure cylinder and is opened
It is dynamic, then grid-connected on-load is carried out, complete the entire start-up course of No.1 unit.
When No.1 unit is run, and No. two units carry out cold start:
No. two each auxiliary systems of unit have run well according to relevant regulation, after boiler cold-state rinses qualification,
Hot flushing is carried out to boiler, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the height of No.1 unit
Pressure vapour leads to No. two high-pressure heaters of No. two units and heats to water supply, and feed temperature is risen to 190 DEG C, carries out boiler
Hot flushing.Concrete operations are as follows: successively opening No.1 unit heat system external steam supply hand stop valve, No.1 unit heat
Corresponding drain valve on system external steam supply pneumatic control valve and heating system contact electric control valve and pipeline, to pipeline and
Valve carries out pre-warm, the thermocouple readings on observation pipeline is paid attention to during pre-warm, it is ensured that pipe temperature and vapor (steam) temperature
Match；Then successively No. two unit heat system height add vapour electric control valve to opening, No. two unit heat system height add vapour gas
Dynamic regulating valve, No. two unit heat system height add vapour hand stop valve and No. two high-pressure heaters of No. two units into vapour electric adjustable
Valve is saved, No. two unit heat system height is initially opened and adds vapour pneumatic control valve and No. two high-pressure heaters of No. two units into vapour electricity
When dynamic regulating valve, aperture is not too big, first carries out pre-warm to pipeline and valve, after pipe temperature is matched with vapor (steam) temperature, then
The high-pressure heater of unit two of standard-sized sheet two adds vapour pneumatic control valve into vapour electric control valve, by No. two unit heat system height
Control steam flow, it is ensured that the feedwater outlet temperature of No. two high-pressure heaters of No. two units reaches 190 DEG C, carries out to boiler hot
It rinses, achievees the effect that hot flushing.
While boiler carries out hot flushing, the high pressure cylinder of No. two units is warmed up, by No. two unit heat systems
It unites external steam supply hand stop valve standard-sized sheet, it is right by controlling the aperture of No. two unit heat system external steam supply pneumatic control valves
No. two unit high-pressure exhaust pipe roads and No. two unit high pressure cylinders carry out pre-warm, and the pressure of steam, Bu Yaochao are controlled during pre-warm
0.7MPa is crossed, the too high red switch high pressure rotor of pressure is prevented, with the raising of high pressure cylinder steam pressure and temperature, by No. two units
One hydrophobic hand stop valve and No. two hydrophobic hand stop valve standard-sized sheets of unit second, it is hydrophobic pneumatic by No. two units of control first
The aperture of shut-off valve and No. two hydrophobic pneumatic stopping valves of unit second controls high pressure cylinder steam pressure and temperature in zone of reasonableness
It is interior.
While high pressure cylinder pre-warming, using heating system to No. two unit reheaters and No. two unit reheating hot pipes
It is preheated, by adjusting the hydrophobic valve opening on reheater and reheating hot arc official road, achievees the effect that preheating.
It after boiler thermal-state rinses qualification, lights a fire to boiler, boiler carries out increasing temperature and pressure, improves the temperature and pressure of steam
Power.
In No. two unit high pressure cylinders, No. two unit high-pressure exhaust pipe roads, No. two unit reheaters and No. two unit reheating heat
After segment pipe pre-warm achievees the effect that requirement, red switch is carried out to intermediate pressure cylinder, starts steam turbine.Steam required for rotationimpulsing of intermediate pressure cylinder
Source is the high pressure steam discharge for the No.1 unit that heating system pipeline provides, by controlling No. two unit heat system external steam supply gas
The aperture of dynamic regulating valve, it is ensured that the pressure and temperature of steam meets steam flow required for rotationimpulsing of intermediate pressure cylinder, and steam turbine is steady
It is scheduled on rated speed, so that the abundant pre-warm expansion of intermediate pressure cylinder.After steam turbine reaches rated speed, electrical test, lubricating oil are carried out
The related works such as system pressure interlock test and leak test, until the swollen difference of intermediate pressure cylinder and intermediate pressure cylinder steam admission side inner wall metal
Temperature reaches requirement and after main steam condition reaches high pressure cylinder rolling parameter requirement, and intermediate pressure cylinder start-up is switched to high pressure cylinder and is opened
It is dynamic, then grid-connected on-load is carried out, complete the entire start-up course of No. two units.
The utility model compared with prior art, has the following advantages that and effect: this system structure is simple, and arrangement is convenient,
The bypath system of unit uses the big bypass of level-one, is capable of the repair and maintenance of energy saving unit capital expenditure expense and later period system equipment
Expense；The system is provided with heating system device simultaneously, the high-pressure exhaust pipe road of two units is connected, every unit exists
When cold start, the high pressure steam discharge of adjacent machine can be led into the unit by heating system and carry out high pressure cylinder, high-pressure exhaust pipe
The pre-warm in road, reheater and reheater hot arc pipeline is capable of providing steam parameter and required required for realizing rotationimpulsing of intermediate pressure cylinder
The steam flow wanted carries out rotationimpulsing of intermediate pressure cylinder, fills to intermediate pressure cylinder while the main steam condition increasing temperature and pressure of superheater
Divide heating expansion, prevents the bearing at intermediate pressure cylinder both ends from generating biggish axis vibration because of impact and rub, while also shortening unit
Start the time；For superheater while increasing temperature and pressure, the high pressure steam discharge of adjacent machine carries out reheater, prevents reheater dry combustion method, extends
Service life；Unit starting in the cold state, superheater is after carrying out cold conditions flushing, by heating system by the high pressure of adjacent machine
No. two high-pressure heaters that vapour leads to the unit heat water supply, and water supply can be heated to 190 DEG C, realize boiler not point
In the case where fire, hot flushing is realized, because the feed temperature for entering superheater is high, after hot flushing is qualified, improve overheat
The heating starting speed of device further shortens the starting time of unit.On the whole, activation system reduction initial stage of investment is taken
With with later period repair and maintenance expense, safety and economy when can be improved unit starting in unit starting are further contracted
The short starting time of unit, improve the flexibility of unit.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment.
In figure: No.1 unit superheater 1, No.1 Main Steam Pipeline of Unit 2, No.1 unit high-pressure main steam regulating valve 3, No.1
Unit level-one bypass duct 4, the first drain water piping of No.1 unit 5, the second drain water piping of No.1 unit 6, No.1 unit first are dredged
Water hand stop valve 7, the hydrophobic hand stop valve 8 of No.1 unit second, the hydrophobic pneumatic control valve 9 of No.1 unit first, No.1 machine
Main vapour is pressed to adjust union valve 11, No.1 unit intermediate pressure cylinder 12, No.1 unit in the second hydrophobic pneumatic control valve 10 of group, No.1 unit
Level-one bypass electric control valve 13, No.1 unit high pressure cylinder 14, No. two high-pressure heaters of No.1 unit into vapour electric control valve 15,
No. two No.1 unit high-pressure exhaust pipe road 16, No.1 unit high-pressure heaters 17, that No.1 unit heat system height adds vapour is pneumatic
Regulating valve 18, No.1 unit heat system height add vapour hand stop valve 19, No.1 unit two takes out Pneumatic check valve 20, No.1 machine
The external steam supply electric control valve 21 of group heating system, No.1 unit heat system external steam supply hand stop valve 22, No.1 unit
Reheater 23, No.1 unit reheating hot pipe 24, No.1 unit heat system external steam supply pneumatic control valve 25, No.1 unit
Heating system height adds vapour electric control valve 26, heating system contact electric control valve 27, No.1 unit level-one bypass desuperheating water
Pneumatic control valve 28, No.1 unit level-one bypass desuperheat waterpipe 29, No.1 unit condenser 30, No.1 unit three-level desuperheat subtract
Depressor 31, heating system pipeline 32, No. two unit heat system external steam supply electric control valves, 33, No. two unit heat systems pair
34, No. two unit reheaters 36, two of unit heat system external steam supply hand stop valve 35, two of outer steam supply pneumatic control valve
The unit high-pressure exhaust pipe road 38, two of unit reheating hot pipe 37, two 39, No. two units two of No. two high-pressure heaters of unit
Number high-pressure heater takes out the unit high pressure cylinder 42, two of Pneumatic check valve 41, two machines into 40, No. two units two of vapour electric control valve
Main vapour is pressed to adjust the unit level-one of unit condenser 44, two of union valve 43, two bypass desuperheating water pneumatic control valve 45, two in group
Number unit level-one bypass 46, No. two unit heat system height of desuperheat waterpipe add 47, No. two unit heats of vapour electric control valve
System height adds 48, No. two unit heat system height of vapour pneumatic control valve and adds 49, No. two unit superheaters of vapour hand stop valve
50, No. two unit level-one bypass ducts 52, two unit high-pressure main steam regulating valve 53, two of Main Steam Pipeline of Unit 51, two
The first drain water piping of unit 55, two of the second drain water piping of unit 54, two unit 56, No. two machines of the second hydrophobic hand stop valve
First 57, No. two units of hydrophobic hand stop valve, 58, No. two hydrophobic pneumatic cut-offs of unit first of the second hydrophobic pneumatic stopping valve of group
59, No. two unit level-ones of valve bypass the unit intermediate pressure cylinder 61, two of electric control valve 60, two unit three-level temperature-decreased pressure reducer 62.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment.
Referring to Fig. 1, the quick start system of the energy-efficient Turbo-generator Set in the present embodiment, including No.1 unit
Superheater 1, No.1 unit intermediate pressure cylinder 12, No.1 unit high pressure cylinder 14, No.1 unit reheater 23, No.1 unit condenser 30,
No. two 44, No. two unit superheaters 50 of the unit condenser of unit high pressure cylinder 42, two of unit reheater 36, two and No. two units
Intermediate pressure cylinder 61.
No.1 unit superheater 1 is connect by No.1 Main Steam Pipeline of Unit 2 with No.1 unit high pressure cylinder 14, and in No.1
No.1 unit high-pressure main steam regulating valve 3, No.1 unit high pressure cylinder are installed between unit superheater 1 and No.1 unit high pressure cylinder 14
14 are connect by No.1 unit high-pressure exhaust pipe road 16 with No.1 unit reheater 23, and No.1 unit reheater 23 passes through No.1 machine
Group reheating hot pipe 24 is connect with No.1 unit intermediate pressure cylinder 12, and is equipped with No.1 in the air inlet of No.1 unit intermediate pressure cylinder 12
Main vapour is pressed to adjust union valve 11 in unit；No. two unit superheaters 50 pass through No. two Main Steam Pipeline of Unit 51 and No. two unit height
Cylinder pressure 42 connects, and the main vapour tune of No. two unit high pressures is equipped between No. two unit superheaters 50 and No. two unit high pressure cylinders 42
Valve 53 is saved, No. two unit high pressure cylinders 42 are connect by No. two unit high-pressure exhaust pipe roads 38 with No. two unit reheaters 36, and No. two
Unit reheater 36 is connect by No. two unit reheating hot pipes 37 with No. two unit intermediate pressure cylinders 61, and is pressed in No. two units
The air inlet of cylinder 61, which is equipped in No. two units, presses main vapour to adjust union valve 43；No.1 unit high-pressure exhaust pipe road 16 passes through heating
System pipeline 32 is connect with No. two unit high-pressure exhaust pipe roads 38, and heating system contact is equipped on heating system pipeline 32
Electric control valve 27；The first drain water piping of No.1 unit 5 is and hydrophobic in No.1 unit first by drawing on No.1 highpressure steam conduit tube
The hydrophobic hand stop valve 7 of No.1 unit first and the hydrophobic pneumatic control valve 9 of No.1 unit first, and one are installed on pipeline 5
Number the first drain water piping of unit 5 is connected to the hydrophobic development unit of No.1 unit condenser 30, the second drain water piping of No.1 unit 6
By drawing on No.1 highpressure steam conduit tube, and it is hydrophobic manually to be equipped on the second drain water piping of No.1 unit 6 No.1 unit second
Shut-off valve 8 and the hydrophobic pneumatic control valve 10 of No.1 unit second, and the second drain water piping of No.1 unit 6 is also connected to No.1 machine
The hydrophobic development unit of group condenser 30；No. two the first drain water pipings of unit 55 on No. two highpressure steam conduit tubes by drawing, and at No. two
The hydrophobic hand stop valve 57 of No. two units first is installed on the first drain water piping of unit 55 and No. two units first are hydrophobic pneumatic
Shut-off valve 59, and No. two the first drain water pipings of unit 55 are connected to the hydrophobic development unit of No. two unit condensers 44, No. two machines
The second drain water piping 54 of group is equipped with two on No. two the second drain water pipings of unit 54 also by drawing on No. two highpressure steam conduit tubes
Number hydrophobic hand stop valve 56 of unit second and No. two hydrophobic pneumatic stopping valves 58 of unit second, and No. two units second are hydrophobic
Pipeline 54 is also connected to the hydrophobic development unit of No. two unit condensers 44.
In the present embodiment, No.1 unit level-one bypass duct 4 is connected to by drawing on No.1 Main Steam Pipeline of Unit 2
The No.1 unit three-level temperature-decreased pressure reducer 31 of No.1 unit condenser 30, and be equipped on No.1 unit level-one bypass duct 4
No.1 unit level-one bypasses electric control valve 13, and No.1 unit three-level temperature-decreased pressure reducer 31 also bypasses desuperheat with No.1 unit level-one
Waterpipe 29 connects, and No.1 unit level-one bypass desuperheat aqueous vapor is equipped on No.1 unit level-one bypass desuperheat waterpipe 29
Dynamic regulating valve 28；No. two unit level-one bypass ducts 52 are connected to No. two machines by drawing on No. two Main Steam Pipeline of Unit 51
No. two unit three-level temperature-decreased pressure reducers 62 of group condenser 44, and No. two machines are installed on No. two unit level-one bypass ducts 52
Group level-one bypasses electric control valve 60, and No. two unit three-level temperature-decreased pressure reducers 62 also bypass desuperheat waterpipe with No. two unit level-ones
46 connections, and No. two unit level-one bypass desuperheating waters are installed on No. two unit level-one bypass desuperheat waterpipes 46 and are pneumatically adjusted
Valve 45.
In the present embodiment, steam pipe road and the external steam supply pipe of No.1 are added by No.1 height in No.1 unit high-pressure exhaust pipe road 16
Road is connect with one end of heating system pipeline 32, and steam pipe road and No. two are added by No. two height in No. two unit high-pressure exhaust pipe roads 38
External steam line is connect with the other end of heating system pipeline 32, and is added in No.1 height and be equipped with No.1 unit on steam pipe road
Two take out Pneumatic check valve 20, add in No. two height and are equipped with No. two pumping Pneumatic check valves 41 of units two on steam pipe road, in No.1 pair
No.1 unit heat system external steam supply hand stop valve 22 is installed on outer steam line, is pacified on No. two external steam lines
Equipped with No. two unit heat system external steam supply hand stop valves 35.
In the present embodiment, is added in No.1 height and be also sequentially installed with No.1 unit heat system height on steam pipe road and add vapour hand
Dynamic shut-off valve 19, No.1 unit heat system height add vapour pneumatic control valve 18 and No.1 unit heat system height to add vapour electronic
Regulating valve 26；It is added in No. two height and is also sequentially installed with No. two unit heat system height on steam pipe road and adds vapour electric control valve
47, No. two unit heat system height add vapour pneumatic control valve 48 and No. two unit heat system height add vapour hand stop valve
49。
In the present embodiment, it is also equipped with No.1 unit heat system external steam supply on the external steam line of No.1 and pneumatically adjusts
Valve 25, and No.1 unit heat system pair is installed in the bypass of No.1 unit heat system external steam supply pneumatic control valve 25
Outer steam supply electric control valve 21；No. two unit heat system external steam supply motorized adjustments are also equipped on No. two external steam lines
Valve 33, and No. two unit heat systems pair are installed in the bypass of No. two unit heat system external steam supply electric control valves 33
Outer steam supply pneumatic control valve 34.
In the present embodiment, No. two high-pressure heaters 17 of No.1 unit are added steam pipe road with No.1 height by pipeline and are connect, and
It is connected to No.1 unit two and takes out the rear of Pneumatic check valve 20, and added in No. two high-pressure heaters 17 of No.1 unit with No.1 height
No. two high-pressure heaters of No.1 unit are installed into vapour electric control valve 15 between steam pipe road；No. two high-pressure heaters of No. two units
39, which add steam pipe road with No. two height by pipeline, connect, and is connected to the rear that No. two units two take out Pneumatic check valve 41, and
No. two high-pressure heaters 39 of No. two units and No. two height add be equipped between steam pipe road No. two high-pressure heaters of No. two units into
Vapour electric control valve 40.
The working method of the quick start system of energy-efficient Turbo-generator Set is as follows:
No.1 unit superheater 1 is to pass through No.1 unit main steam pipe for water vapour is generated after the boosting of water supply heat temperature raising
Road 2 enters No.1 unit high-pressure main steam regulating valve 3, when the starting that main steam condition reaches unit requires, No.1 unit high pressure
Main steam control valve 3 is slowly opened according to the control logic of setting, and the water vapour of certain parameter enters No.1 unit high pressure cylinder
Red switch steam turbine after 14 carries out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is along No.1 machine
Group high-pressure exhaust pipe road 16 enters No.1 unit reheater 23, passes through after carrying out increasing temperature and pressure along No.1 unit reheating hot pipe 24
It presses main vapour to adjust union valve 11 in No.1 unit and enters 12 expansion work of No.1 unit intermediate pressure cylinder, then done by low pressure (LP) cylinder expansion
Enter No.1 unit condenser 30 after function；
No. two unit superheaters 50 are to pass through No. two unit main steam pipes for water vapour is generated after the boosting of water supply heat temperature raising
Road 51 enters No. two unit high-pressure main steam regulating valves 53, when the starting that main steam condition reaches unit requires, No. two unit height
Pressure main steam control valve 53 is slowly opened according to the control logic of setting, and the water vapour of certain parameter enters No. two unit high pressures
Red switch steam turbine after cylinder 42 carries out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is along No. two
Unit high-pressure exhaust pipe road 38 enter No. two unit reheaters 36, carry out increasing temperature and pressure after along No. two unit reheating hot pipes 37
It is pressed main vapour to adjust union valve 43 in No. two units and enters No. two 61 expansion works of unit intermediate pressure cylinder, then expanded by low pressure (LP) cylinder
Enter No. two unit condensers 44 after acting.
The level-one bypass of No.1 unit bypasses electric control valve by No.1 unit level-one bypass duct 4 and No.1 unit level-one
13 compositions；The level-one bypass of No.1 unit is drawn from No.1 Main Steam Pipeline of Unit 2, through No.1 unit level-one bypass duct 4
No.1 unit level-one bypass electric control valve 13 is flowed through, into the No.1 unit three-level temperature-decreased pressure reducer of No.1 unit condenser 30
31, the desuperheating water of No.1 unit level-one bypass desuperheat waterpipe 29 flows through No.1 unit level-one bypass desuperheating water pneumatic control valve
28 pairs of steam carry out pressure and temperature reducing, finally enter No.1 unit condenser 30.No.1 unit level-one bypass main function be
At the unit starting stage, improves boiler heating, the rate of rise and improve boiler combustion rate, the steam that superheater comes directly is passed through
Condenser is introduced after pressure and temperature reducing, recycles working medium.
The level-one bypass of No. two units bypasses motorized adjustment by No. two unit level-one bypass ducts 52 and No. two unit level-ones
Valve 60 forms；The level-one bypass of No. two units is drawn from No. two Main Steam Pipeline of Unit 51, through No. two unit level-one shunt valves
Road 52 flows through No. two unit level-one bypass electric control valves 60, and No. two unit three-level desuperheats into No. two unit condensers 44 subtract
Depressor 62, the desuperheating water of No. two unit level-one bypass desuperheat waterpipes 46 flow through No. two unit level-one bypass desuperheating waters and pneumatically adjust
It saves valve 45 and pressure and temperature reducing is carried out to steam, finally enter No. two unit condensers 44.The main work of the level-one bypass of No. two units
With being at the unit starting stage, raising boiler heating, the rate of rise and improvement boiler combustion rate, the steam that superheater is come are straight
It connects and introduces condenser after pressure and temperature reducing, recycle working medium.
No. two high-pressure heaters 17 of No.1 unit heat water supply using steam, it is ensured that the water supply into superheater has
There is higher temperature, improve the heating starting speed of superheater, shortens the time required for superheater increasing temperature and pressure；No.1 unit
When cold start, the high pressure steam discharge of No. two units is delivered to No. two high-pressure heaters of No.1 unit into vapour electricity by heating system pipeline
Dynamic regulating valve 15 heats No. two high-pressure heaters 17 of No.1 unit, water supply is heated to 190 by controlling its aperture
DEG C, meet boiler thermal-state rinsing requirement；
No. two high-pressure heaters 39 of No. two units are to be heated using steam to water supply, it is ensured that into the water supply of superheater
Temperature with higher improves the heating starting speed of superheater, shortens the time required for superheater increasing temperature and pressure；No. two machines
When group cold start, the high pressure steam discharge of No.1 unit is delivered to No. two high-pressure heaters of No. two units into vapour by heating system pipeline
Electric control valve 40 heats No. two high-pressure heaters 39 of No. two units, water supply is heated to by controlling its aperture
190 DEG C, meet boiler thermal-state rinsing requirement.
No.1 unit in cold start, using heating system pipeline come No. two units high row's steam to high pressure cylinder into
Row falls to warm up, and warm steam enters from No.1 unit high-pressure exhaust pipe road 16, flows backward to No.1 machine along No.1 unit high pressure cylinder 14
The first drain water piping 5 of group and/or the second drain water piping of No.1 unit 6, by controlling the hydrophobic pneumatic control valve 9 of No.1 unit first
And/or the aperture of the hydrophobic pneumatic control valve 10 of No.1 unit second, guarantee the pre-warm effect of No.1 unit high pressure cylinder 14；
No. two units in cold start, using heating system pipeline come No.1 unit high row's steam to high pressure cylinder into
Row falls to warm up, and warm steam enters from No. two unit high-pressure exhaust pipe roads 38, flows backward to No. two machines along No. two unit high pressure cylinders 42
The first drain water piping 55 of group and/or No. two the second drain water pipings of unit 54, by controlling the hydrophobic pneumatic cut-off of No. two units first
The aperture of valve 59 and/or No. two hydrophobic pneumatic stopping valves 58 of unit second, guarantees the pre-warm effect of high pressure cylinder.
The quick start system of above-mentioned energy-efficient Turbo-generator Set, its working principles are as follows:
Two unit one operations, another when opening machine, can be used the system and carry out cold start, improves unit and opens machine
Safety and economy.
When No. two units are run, and No.1 unit carries out cold start:
The each auxiliary system of No.1 unit has run well according to relevant regulation, after boiler cold-state rinses qualification,
Hot flushing is carried out to boiler, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the height of No. two units
Pressure vapour leads to No. two high-pressure heaters 17 of No.1 unit and heats to water supply, and feed temperature is risen to 190 DEG C, carries out boiler
Hot flushing.Concrete operations are as follows: successively opening 35, No. two units of No. two unit heat system external steam supply hand stop valves
Corresponding drain valve on the external steam supply electric control valve 33 of heating system and heating system contact electric control valve 27 and pipeline,
Pre-warm is carried out to pipeline and valve, the thermocouple readings on observation pipeline are paid attention to during pre-warm, it is ensured that pipe temperature and steaming
Stripping temperature matching；Then it successively opens No.1 unit heat system height and adds vapour electric control valve 26, No.1 unit heat system
Height adds vapour pneumatic control valve 18, No.1 unit heat system height is added No. two high pressures of vapour hand stop valve 19 and No.1 unit and added
Hot device is initially opened No.1 unit heat system height and adds vapour pneumatic control valve 18 and No.1 unit two into vapour electric control valve 15
When number high-pressure heater is into vapour electric control valve 15, aperture is not too big, pre-warm is first carried out to pipeline and valve, to pipe temperature
After matching with vapor (steam) temperature, then No. two high-pressure heaters of standard-sized sheet No.1 unit are into vapour electric control valve 15, by No.1 unit heat
System height adds vapour pneumatic control valve 18 and controls steam flow, it is ensured that the feedwater outlet temperature of No. two high-pressure heaters of No.1 unit
Reach 190 DEG C, hot flushing is carried out to boiler, achievees the effect that hot flushing.
While boiler carries out hot flushing, the high pressure cylinder of No.1 unit is warmed up, by No.1 unit heat system
It unites external 22 standard-sized sheet of steam supply hand stop valve, passes through opening for control No.1 unit heat system external steam supply electric control valve 21
Degree carries out pre-warm to No.1 unit high-pressure exhaust pipe road 16 and No.1 unit high pressure cylinder 14, the pressure of steam is controlled during pre-warm
Power does not exceed 0.7MPa, prevents the too high red switch high pressure rotor of pressure, will with the raising of high pressure cylinder steam pressure and temperature
The hydrophobic hand stop valve 7 of No.1 unit first and hydrophobic 8 standard-sized sheet of hand stop valve of No.1 unit second, by controlling No.1 unit
The aperture of first hydrophobic pneumatic control valve 9 and the hydrophobic pneumatic control valve 10 of No.1 unit second, control high pressure cylinder steam pressure and
Temperature is in the reasonable scope.
While high pressure cylinder pre-warming, using heating system to No.1 unit reheater 23 and No.1 unit reheating hot arc pipe
Road 24 is preheated, and by adjusting the hydrophobic valve opening on reheater and reheating hot arc official road, achievees the effect that preheating.
It after boiler thermal-state rinses qualification, lights a fire to boiler, boiler carries out increasing temperature and pressure, improves the temperature and pressure of steam
Power.
In No.1 unit high pressure cylinder 14, No.1 unit high-pressure exhaust pipe road 16, No.1 unit reheater 23 and No.1 unit
After 24 pre-warm of reheating hot pipe achievees the effect that requirement, red switch is carried out to intermediate pressure cylinder, starts steam turbine.Needed for rotationimpulsing of intermediate pressure cylinder
The steam source wanted is the high pressure steam discharge for the No.1 unit that heating system pipeline provides, by controlling No.1 unit heat system pair
The aperture of outer steam supply electric control valve 21, it is ensured that the pressure and temperature of steam meets steam flow required for rotationimpulsing of intermediate pressure cylinder,
Steam turbine is stablized in rated speed, so that the abundant pre-warm expansion of intermediate pressure cylinder.After steam turbine reaches rated speed, electrically tried
It tests, the related works such as lubricating oil system pressure interlock test and leak test, until the swollen difference of intermediate pressure cylinder and intermediate pressure cylinder are into vapour
Side inner wall metal temperature reaches requirement and after main steam condition reaches high pressure cylinder rolling parameter requirement, and intermediate pressure cylinder start-up is switched
To high-pressure cylinder starting-up, then grid-connected on-load is carried out, completes the entire start-up course of No.1 unit.
When No.1 unit is run, and No. two units carry out cold start:
No. two each auxiliary systems of unit have run well according to relevant regulation, after boiler cold-state rinses qualification,
Hot flushing is carried out to boiler, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the height of No.1 unit
Pressure vapour leads to No. two high-pressure heaters 39 of No. two units and heats to water supply, and feed temperature is risen to 190 DEG C, carries out boiler
Hot flushing.Concrete operations are as follows: successively opening No.1 unit heat system external steam supply hand stop valve 22, No.1 unit
Corresponding drain valve on the external steam supply pneumatic control valve 25 of heating system and heating system contact electric control valve 27 and pipeline,
Pre-warm is carried out to pipeline and valve, the thermocouple readings on observation pipeline are paid attention to during pre-warm, it is ensured that pipe temperature and steaming
Stripping temperature matching；Then No. two unit heat system height are successively opened and add 47, No. two unit heat systems of vapour electric control valve
Height, which adds 48, No. two unit heat system height of vapour pneumatic control valve and adds No. two high pressures of vapour hand stop valve 49 and No. two units, to be added
Hot device is initially opened No. two unit heat system height and adds vapour pneumatic control valve 48 and No. two units two into vapour electric control valve 40
When number high-pressure heater is into vapour electric control valve 40, aperture is not too big, pre-warm is first carried out to pipeline and valve, to pipe temperature
After matching with vapor (steam) temperature, then the high-pressure heater of unit two of standard-sized sheet two is into vapour electric control valve 40, by No. two unit heats
System height adds vapour pneumatic control valve 48 and controls steam flow, it is ensured that the feedwater outlet temperature of No. two high-pressure heaters of No. two units
Reach 190 DEG C, hot flushing is carried out to boiler, achievees the effect that hot flushing.
While boiler carries out hot flushing, the high pressure cylinder of No. two units is warmed up, by No. two unit heat systems
It unites external 35 standard-sized sheet of steam supply hand stop valve, passes through opening for No. two unit heat system external steam supply pneumatic control valves 34 of control
Degree carries out pre-warm to No. two unit high-pressure exhaust pipe roads 38 and No. two unit high pressure cylinders 42, the pressure of steam is controlled during pre-warm
Power does not exceed 0.7MPa, prevents the too high red switch high pressure rotor of pressure, will with the raising of high pressure cylinder steam pressure and temperature
No. two hydrophobic hand stop valves 57 of unit first and No. two hydrophobic 56 standard-sized sheets of hand stop valve of unit second, by controlling No. two machines
The aperture of group the first hydrophobic pneumatic stopping valve 59 and No. two hydrophobic pneumatic stopping valves 58 of unit second, controls high pressure cylinder steam pressure
In the reasonable scope with temperature.
While high pressure cylinder pre-warming, using heating system to No. two unit reheaters 36 and No. two unit reheating hot arc pipes
Road 37 is preheated, and by adjusting the hydrophobic valve opening on reheater and reheating hot arc official road, achievees the effect that preheating.
It after boiler thermal-state rinses qualification, lights a fire to boiler, boiler carries out increasing temperature and pressure, improves the temperature and pressure of steam
Power.
In No. two unit reheaters 36 of unit high-pressure exhaust pipe road 38, two of unit high pressure cylinder 42, two and No. two units
After 37 pre-warm of reheating hot pipe achievees the effect that requirement, red switch is carried out to intermediate pressure cylinder, starts steam turbine.Needed for rotationimpulsing of intermediate pressure cylinder
The steam source wanted is the high pressure steam discharge for the No.1 unit that heating system pipeline provides, by controlling No. two unit heat systems pair
The aperture of outer steam supply pneumatic control valve 34, it is ensured that the pressure and temperature of steam meets steam flow required for rotationimpulsing of intermediate pressure cylinder,
Steam turbine is stablized in rated speed, so that the abundant pre-warm expansion of intermediate pressure cylinder.After steam turbine reaches rated speed, electrically tried
It tests, the related works such as lubricating oil system pressure interlock test and leak test, until the swollen difference of intermediate pressure cylinder and intermediate pressure cylinder are into vapour
Side inner wall metal temperature reaches requirement and after main steam condition reaches high pressure cylinder rolling parameter requirement, and intermediate pressure cylinder start-up is switched
To high-pressure cylinder starting-up, then grid-connected on-load is carried out, completes the entire start-up course of No. two units.
Although the utility model is disclosed as above with embodiment, its protection scope being not intended to limit the utility model,
Any technical staff for being familiar with this technology, it is made in the conception and scope for not departing from the utility model to change and retouch,
It all should belong to the protection range of the utility model.
Claims (6)
1. a kind of quick start system of energy-efficient Turbo-generator Set, which is characterized in that including No.1 unit superheater
(1), No.1 unit intermediate pressure cylinder (12), No.1 unit high pressure cylinder (14), No.1 unit reheater (23), No.1 unit condenser
(30), No. two unit reheaters (36), No. two unit high pressure cylinders (42), No. two unit condensers (44), No. two unit superheaters
(50) and No. two unit intermediate pressure cylinders (61)；The No.1 unit superheater (1) passes through No.1 Main Steam Pipeline of Unit (2) and No.1
Unit high pressure cylinder (14) connection, and No.1 machine is installed between No.1 unit superheater (1) and No.1 unit high pressure cylinder (14)
Group high-pressure main steam regulating valve (3), the No.1 unit high pressure cylinder (14) pass through No.1 unit high-pressure exhaust pipe road (16) and No.1
Unit reheater (23) connection, the No.1 unit reheater (23) pass through No.1 unit reheating hot pipe (24) and No.1 machine
Group intermediate pressure cylinder (12) connection, and be equipped in No.1 unit in the air inlet of No.1 unit intermediate pressure cylinder (12) and main vapour is pressed to adjust joint
Valve (11)；No. two unit superheaters (50) are connected by No. two Main Steam Pipeline of Unit (51) and No. two unit high pressure cylinders (42)
It connects, and No. two unit high-pressure main steam regulating valves are installed between No. two unit superheaters (50) and No. two unit high pressure cylinders (42)
(53), No. two unit high pressure cylinders (42) are connected by No. two unit high-pressure exhaust pipe roads (38) and No. two unit reheaters (36)
It connects, No. two unit reheaters (36) are connected by No. two unit reheating hot pipes (37) and No. two unit intermediate pressure cylinders (61)
It connects, and is equipped in No. two units in the air inlet of No. two unit intermediate pressure cylinders (61) and main vapour is pressed to adjust union valve (43)；Described one
Number unit high-pressure exhaust pipe road (16) is connect by heating system pipeline (32) with No. two unit high-pressure exhaust pipe roads (38), and
Heating system contact electric control valve (27) is installed on heating system pipeline (32)；The first drain water piping of No.1 unit (5) by
It is drawn on No.1 highpressure steam conduit tube, and it is hydrophobic manually to be equipped on the first drain water piping of No.1 unit (5) No.1 unit first
Shut-off valve (7) and the first hydrophobic pneumatic control valve of No.1 unit (9), and the first drain water piping of No.1 unit (5) is connected to one
The hydrophobic development unit of number unit condenser (30), the second drain water piping of No.1 unit (6) also by being drawn on No.1 highpressure steam conduit tube,
And the second hydrophobic hand stop valve of No.1 unit (8) and No.1 unit are installed on the second drain water piping of No.1 unit (6)
Two hydrophobic pneumatic control valves (10), and the second drain water piping of No.1 unit (6) is also connected to No.1 unit condenser (30)
Hydrophobic development unit；No. two the first drain water pipings of unit (55) are dredged by drawing on No. two highpressure steam conduit tubes, and in No. two units first
The first hydrophobic hand stop valve of No. two units (57) and No. two hydrophobic pneumatic stopping valves of unit first are installed on waterpipe (55)
(59), and No. two the first drain water pipings of unit (55) are connected to the hydrophobic development units of No. two unit condensers (44), No. two machines
Group the second drain water piping (54) is installed on No. two the second drain water pipings of unit (54) also by drawing on No. two highpressure steam conduit tubes
There are the second hydrophobic hand stop valve of No. two units (56) and No. two the second hydrophobic pneumatic stopping valves of unit (58), and No. two units
Second drain water piping (54) is also connected to the hydrophobic development unit of No. two unit condensers (44).
2. the quick start system of energy-efficient Turbo-generator Set according to claim 1, which is characterized in that No.1
Unit level-one bypass duct (4) is connected to No.1 unit condenser (30) by drawing on No.1 Main Steam Pipeline of Unit (2)
No.1 unit three-level temperature-decreased pressure reducer (31), and be equipped with by No.1 unit level-one on No.1 unit level-one bypass duct (4)
Road electric control valve (13), the No.1 unit three-level temperature-decreased pressure reducer (31) also bypass desuperheat waterpipe with No.1 unit level-one
(29) connect, and No.1 unit level-one bypass desuperheat waterpipe (29) on be equipped with No.1 unit level-one bypass desuperheating water it is pneumatic
Regulating valve (28)；No. two unit level-one bypass ducts (52) are connected to two by drawing on No. two Main Steam Pipeline of Unit (51)
No. two unit three-level temperature-decreased pressure reducers (62) of number unit condenser (44), and pacify on No. two unit level-one bypass ducts (52)
Bypass electric control valve (60) equipped with No. two unit level-ones, No. two unit three-levels temperature-decreased pressure reducer (62) also with No. two units
Level-one bypasses desuperheat waterpipe (46) connection, and is equipped with No. two units on No. two unit level-one bypasses desuperheat waterpipe (46)
Level-one bypasses desuperheating water pneumatic control valve (45).
3. the quick start system of energy-efficient Turbo-generator Set according to claim 1, which is characterized in that described
No.1 unit high-pressure exhaust pipe road (16) steam pipe road and the external steam line of No.1 and heating system pipeline are added by No.1 height
(32) one end connection, steam pipe road and No. two external steam supplies are added by No. two height in No. two unit high-pressure exhaust pipes road (38)
Pipeline is connect with the other end of heating system pipeline (32), and is added in No.1 height and be equipped with the pumping of No.1 unit two on steam pipe road
Dynamic non-return valve (20) add in No. two height and are equipped with No. two pumpings of units two Pneumatic check valve (41) on steam pipe road, external in No.1
No.1 unit heat system external steam supply hand stop valve (22) is installed on steam line, is pacified on No. two external steam lines
Equipped with No. two unit heat system external steam supply hand stop valves (35).
4. the quick start system of energy-efficient Turbo-generator Set according to claim 3, which is characterized in that one
Number height, which is added, is also sequentially installed with that No.1 unit heat system height adds vapour hand stop valve (19), No.1 unit adds on steam pipe road
Hot systems height adds vapour pneumatic control valve (18) and No.1 unit heat system height adds vapour electric control valve (26)；In No. two height
It adds and is also sequentially installed with No. two unit heat system height on steam pipe road and adds vapour electric control valve (47), No. two unit heat systems
System height adds vapour pneumatic control valve (48) and No. two unit heat system height add vapour hand stop valve (49).
5. the quick start system of energy-efficient Turbo-generator Set according to claim 3, which is characterized in that described
No.1 unit heat system external steam supply pneumatic control valve (25) is also equipped on the external steam line of No.1, and in No.1 unit
No.1 unit heat system external steam supply motorized adjustment is installed in the bypass of the external steam supply pneumatic control valve (25) of heating system
Valve (21)；No. two unit heat system external steam supply electric control valves (33) are also equipped on described No. two external steam lines,
And No. two unit heat system externals are installed in the bypass of No. two unit heat system external steam supply electric control valves (33)
Steam supply pneumatic control valve (34).
6. the quick start system of energy-efficient Turbo-generator Set according to claim 4, which is characterized in that No.1
No. two high-pressure heaters (17) of unit are added steam pipe road with No.1 height by pipeline and are connect, and it is dynamic to be connected to the pumping of No.1 unit two
The rear of non-return valve (20), and add in No. two high-pressure heaters (17) of No.1 unit and No.1 height and be equipped with one between steam pipe road
Number No. two high-pressure heaters of unit are into vapour electric control valve (15)；No. two high-pressure heaters (39) of No. two units pass through pipeline and two
Number height adds the connection of steam pipe road, and is connected to the rear that No. two units two take out Pneumatic check valve (41), and at No. two unit two
High-pressure heater (39) and No. two height, which are added, is equipped with No. two high-pressure heaters of No. two units into vapour motorized adjustment between steam pipe road
Valve (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920186887.6U CN209604098U (en) | 2019-02-02 | 2019-02-02 | A kind of quick start system of energy-efficient Turbo-generator Set |
Applications Claiming Priority (1)
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| CN113175367A (en) * | 2021-04-25 | 2021-07-27 | 西安热工研究院有限公司 | Master control system for improving peak regulation capacity and flexibility of unit and operation method |
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