CN109779699A

CN109779699A - A kind of quick start system and its operation method of energy-efficient Turbo-generator Set

Info

Publication number: CN109779699A
Application number: CN201910108169.1A
Authority: CN
Inventors: 李万军; 李肖霞; 闫玉峰; 牛庆良; 董洋; 黄天琪; 张得科
Original assignee: Huadian Electric Power Research Institute Co Ltd
Current assignee: Huadian Electric Power Research Institute Co Ltd
Priority date: 2019-02-02
Filing date: 2019-02-02
Publication date: 2019-05-21
Anticipated expiration: 2039-02-02
Also published as: CN109779699B

Abstract

The present invention relates to the quick start systems and its operation method of a kind 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

A kind of quick start system and its operation method of energy-efficient Turbo-generator Set

Technical field

The present invention relates to the quick start systems and its operation method of a kind of energy-efficient Turbo-generator Set, belong to fire The activation system of power plant.

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.

Summary of the invention

It is an object of the invention to overcome the above deficiencies in the existing technologies, and it is reasonable efficient to provide a kind of design The quick start system and its operation method of energy-efficient Turbo-generator Set.

Technical solution used by the present invention solves the above problems is: a kind of energy-efficient Turbo-generator Set it is quick Activation 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 unit mistakes Hot device and No. two unit intermediate pressure cylinders；The No.1 unit superheater passes through No.1 Main Steam Pipeline of Unit and No.1 unit high pressure cylinder 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, it is described No.1 unit high pressure cylinder is connect by No.1 unit high-pressure exhaust pipe road with No.1 unit reheater, the No.1 unit reheater It is connect by No.1 unit reheating hot pipe with No.1 unit intermediate pressure cylinder, and is equipped in the air inlet of No.1 unit intermediate pressure cylinder Main vapour is pressed to adjust union valve in No.1 unit；No. two unit superheaters pass through No. two Main Steam Pipeline of Unit and No. two units High pressure cylinder connection, and the main vapour of No. two unit high pressures is installed between No. two unit superheaters and No. two unit high pressure cylinders and is adjusted Valve, No. two unit high pressure cylinders are connect by No. two unit high-pressure exhaust pipe roads with No. two unit reheaters, No. two machines Group reheater is connect by No. two unit reheating hot pipes with No. two unit intermediate pressure cylinders, and in the air inlet of No. two unit intermediate pressure cylinders Mouth, which is equipped in No. two units, presses main vapour to adjust union valve；The No.1 unit high-pressure exhaust pipe road by heating system pipeline with No. two unit high-pressure exhaust pipe road connections, and heating system contact electric control valve is installed on heating system pipeline；No.1 The first drain water piping of unit is equipped with No.1 machine by drawing on No.1 highpressure steam conduit tube, and on the first drain water piping of No.1 unit The first hydrophobic hand stop valve of group and the hydrophobic pneumatic control valve of No.1 unit first, and the first drain water piping of No.1 unit connects 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 and the hydrophobic gas of No.1 unit second are installed on the second drain water piping of No.1 unit Dynamic regulating 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 units First drain water piping is equipped with No. two units by drawing on No. two highpressure steam conduit tubes on No. two the first drain water pipings of unit One 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 two The hydrophobic development unit of number unit condenser, No. two the second drain water pipings of unit on No. two highpressure steam conduit tubes also by drawing, and two The hydrophobic hand stop valve of No. two units second is installed on number the second drain water piping of unit and No. two units second are hydrophobic pneumatic cuts Only 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 Main Steam Pipeline of Unit for water vapour is generated after the boosting of water supply heat temperature raising Into No.1 unit high-pressure main steam regulating valve, when the starting that main steam condition reaches unit requires, the main vapour of No.1 unit high pressure Regulating valve is slowly opened according to the control logic of setting, and the water vapour of certain parameter enters red switch after No.1 unit high pressure cylinder Steam turbine carries out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is along the high pressure of No.1 unit Steam pipe road enters No.1 unit reheater, leads along No.1 unit reheating hot pipe through pressing in No.1 unit after carrying out increasing temperature and pressure Vapour adjusts union valve and enters No.1 unit intermediate pressure cylinder expansion work, and it is solidifying that No.1 unit is then entered after low pressure (LP) cylinder expansion work Vapour device；

No. two unit superheaters are to pass through No. two Main Steam Pipeline of Unit for water vapour is generated after the boosting of water supply heat temperature raising Into No. two unit high-pressure main steam regulating valves, when the starting that main steam condition reaches unit requires, No. two main vapour of unit high pressure Regulating valve is slowly opened according to the control logic of setting, and the water vapour of certain parameter enters red switch after No. two unit high pressure cylinders Steam turbine carries out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is along No. two high pressures of unit Steam pipe road enters No. two unit reheaters, leads along No. two unit reheating hot pipes through pressing in No. two units after carrying out increasing temperature and pressure Vapour adjusts union valve and enters No. two unit intermediate pressure cylinder expansion works, and it is solidifying that No. two units are then entered after low pressure (LP) cylinder expansion work Vapour device.

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 into superheater water supply have compared with High temperature improves the heating starting speed of superheater, shortens the time required for superheater increasing temperature and pressure；No. two unit cold conditions When starting, the high pressure steam discharge of No.1 unit is delivered to No. two high-pressure heaters of No. two units into vapour electric adjustable by heating system pipeline Section valve heats No. two high-pressure heaters of No. two units, water supply is heated to 190 DEG C, meets pot by controlling its aperture The hot rinsing requirement of furnace.

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 high row's steam of No.1 unit high pressure cylinder is fallen Warm, warm steam enters from No. two unit high-pressure exhaust pipe roads, flows backward to No. two units first along No. two unit high pressure cylinders and dredges Waterpipe and/or No. two the second drain water pipings of unit pass through No. two hydrophobic pneumatic stopping valves of unit first of control and/or No. two machines The aperture of the second hydrophobic pneumatic stopping valve of group, 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, improve the peace that unit opens machine Full property 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, to pot Furnace carries out hot flushing, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the high pressure of No. two units 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 the hot of boiler It rinses.Concrete operations are as follows: successively opening No. two unit heat system external steam supply hand stop valves, No. two unit heat systems Corresponding drain valve on external steam supply electric control valve and heating system contact electric control valve and pipeline, to pipeline and valve Pre-warm is carried out, the thermocouple readings on observation pipeline are paid attention to during pre-warm, it is ensured that pipe temperature is matched with vapor (steam) temperature；So Successively No.1 unit heat system height adds vapour electric control valve to opening, No.1 unit heat system height is added vapour and pneumatically adjusted afterwards 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 control valve, It is initially opened No.1 unit heat system height and adds No. two high-pressure heaters of vapour pneumatic control valve and No.1 unit into vapour electric adjustable When saving 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 standard-sized sheet No. two high-pressure heaters of No.1 unit add the control of vapour pneumatic control valve into vapour electric control valve, by No.1 unit heat system height 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 hot punching to boiler It washes, 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, to pot Furnace carries out hot flushing, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the high pressure of No.1 unit 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 the hot of boiler It rinses.Concrete operations are as follows: successively opening No.1 unit heat system external steam supply hand stop valve, No.1 unit heat system Corresponding drain valve on external steam supply pneumatic control valve and heating system contact electric control valve and pipeline, to pipeline and valve Pre-warm is carried out, the thermocouple readings on observation pipeline are paid attention to during pre-warm, it is ensured that pipe temperature is matched with vapor (steam) temperature；So Successively No. two unit heat system height add vapour electric control valve to opening, No. two unit heat system height are added vapour and pneumatically adjusted afterwards 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 control valve, It is initially opened No. two unit heat system height and adds vapour pneumatic control valve and No. two high-pressure heaters of No. two units into vapour electric adjustable When saving 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 standard-sized sheet No. two high-pressure heaters of No. two units add the control of vapour pneumatic control valve into vapour electric control valve, by No. two unit heat system height 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 hot punching to boiler It washes, 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.

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.

Compared with prior art, the present invention having the following advantages that and effect: this system structure is simple, and arrangement is convenient, unit Bypath system use the big bypass of level-one, the repair and maintenance for capableing of energy saving unit capital expenditure expense and later period system equipment takes With；The system is provided with heating system device simultaneously, the high-pressure exhaust pipe road of two units is connected, every unit is cold State start when, can by heating system by the high pressure steam discharge of adjacent machine lead to the unit carry out high pressure cylinder, high-pressure exhaust pipe road, The pre-warm of reheater and reheater hot arc pipeline is capable of providing steam parameter and required required for realizing rotationimpulsing of intermediate pressure cylinder Steam flow carries out rotationimpulsing of intermediate pressure cylinder while the main steam condition increasing temperature and pressure of superheater, sufficiently add to intermediate pressure cylinder Thermal expansion prevents the bearing at intermediate pressure cylinder both ends from generating biggish axis vibration because of impact and rub, while also shortening the starting of unit Time；For superheater while increasing temperature and pressure, the high pressure steam discharge of adjacent machine carries out reheater, prevents reheater dry combustion method, extending makes Use the service life；Unit starting in the cold state, superheater draw the high pressure steam discharge of adjacent machine after carrying out cold conditions flushing, through heating system No. two high-pressure heaters to the unit heat water supply, and water supply can be heated to 190 DEG C, realize what boiler misfired In the case of, it realizes hot flushing, because the feed temperature for entering superheater is high, after hot flushing is qualified, improves superheater Heating starting speed further shortens the starting time of unit.On the whole, the activation system reduce initial stage of investment expense and Later period repair and maintenance expense, safety and economy when can be improved unit starting in unit starting, further shortens The starting time of unit, improve the flexibility of unit.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the embodiment of the present invention.

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 present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair Bright explanation and the invention is not limited to following embodiments.

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.

No.1 unit superheater 1 be will water supply heat temperature raising boosting after generate water vapour, by No.1 Main Steam Pipeline of Unit 2 into Enter No.1 unit high-pressure main steam regulating valve 3, when the starting that main steam condition reaches unit requires, the main vapour tune of No.1 unit high pressure Section valve 3 is slowly opened according to the control logic of setting, and the water vapour of certain parameter enters 14 backlash of No.1 unit high pressure cylinder Turn steam turbine, carry out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is along No.1 unit high pressure Blow-off line 16 enter No.1 unit reheater 23, carry out increasing temperature and pressure after along No.1 unit reheating hot pipe 24 through No.1 machine It presses main vapour to adjust union valve 11 in group and enters 12 expansion work of No.1 unit intermediate pressure cylinder, it is then laggard by low pressure (LP) cylinder expansion work Enter No.1 unit condenser 30；

No. two unit superheaters 50 are to pass through No. two Main Steam Pipeline of Unit 51 for water vapour is generated after the boosting of water supply heat temperature raising Into No. two unit high-pressure main steam regulating valves 53, when the starting that main steam condition reaches unit requires, No. two unit high pressure masters 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 pressure cylinders 42 Red switch steam turbine afterwards carries out expansion work, keeps rated speed operation；After steam turbine red switch, high pressure cylinder steam discharge is along No. two units 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 through two It presses main vapour to adjust union valve 43 in number unit and enters No. two 61 expansion works of unit intermediate pressure cylinder, then pass through low pressure (LP) cylinder expansion work Enter No. two unit condensers 44 afterwards.

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 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. two units are cold When state starts, it is electronic into vapour that the high pressure steam discharge of No.1 unit is delivered to No. two high-pressure heaters of No. two units by heating system pipeline Regulating valve 40 heats No. two high-pressure heaters 39 of No. two units, water supply is heated to 190 DEG C by controlling its aperture, 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 high row's steam of No.1 unit high pressure cylinder is fallen Warm, warm steam enters from No. two unit high-pressure exhaust pipe roads 38, flows backward to No. two units the along No. two unit high pressure cylinders 42 One drain water piping 55 and/or No. two the second drain water pipings of unit 54, by controlling No. two hydrophobic pneumatic stopping valves 59 of unit first And/or the aperture of No. two hydrophobic pneumatic stopping valves 58 of unit second, guarantee the pre-warm effect of high pressure cylinder.

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, to pot Furnace carries out hot flushing, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the high pressure of No. two units 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 the heat of boiler State is rinsed.Concrete operations are as follows: successively opening 35, No. two unit heats of No. two unit heat system external steam supply hand stop valves Corresponding drain valve on system external steam supply electric control valve 33 and heating system contact electric control valve 27 and pipeline, to pipe Road and valve carry out pre-warm, the thermocouple readings on observation pipeline are paid attention to during pre-warm, it is ensured that pipe temperature and steam temperature Degree matching；Then successively No.1 unit heat system height adds vapour electric control valve 26 to opening, No.1 unit heat system height adds No. two high-pressure heaters of vapour hand stop valve 19 and No.1 unit are added into vapour pneumatic control valve 18, No.1 unit heat system height Into vapour electric control valve 15, it is initially opened No.1 unit heat system height and adds No. two height of vapour pneumatic control valve 18 and No.1 unit When pressing heater into vapour electric control valve 15, aperture is not too big, first carries out pre-warm to pipeline and valve, to pipe temperature and steams After stripping temperature matching, 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 reaches 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.

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, to pot Furnace carries out hot flushing, pays attention to not lighting a fire to boiler first at this time, first uses heating system by the high pressure of No.1 unit 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 the heat of boiler State is rinsed.Concrete operations are as follows: successively opening No.1 unit heat system external steam supply hand stop valve 22, No.1 unit heat Corresponding drain valve on system external steam supply pneumatic control valve 25 and heating system contact electric control valve 27 and pipeline, to pipe Road and valve carry out pre-warm, the thermocouple readings on observation pipeline are paid attention to during pre-warm, it is ensured that pipe temperature and steam temperature Degree matching；Then No. two unit heat system height are successively opened to add 47, No. two unit heat system height of vapour electric control valve and add No. two high-pressure heaters of vapour hand stop valve 49 and No. two units are added into 48, No. two unit heat system height of vapour pneumatic control valve Into vapour electric control valve 40, it is initially opened No. two unit heat system height and adds No. two height of vapour pneumatic control valve 48 and No. two units When pressing heater into vapour electric control valve 40, aperture is not too big, first carries out pre-warm to pipeline and valve, to pipe temperature and steams After stripping temperature matching, then the high-pressure heater of unit two of standard-sized sheet two is into vapour electric control valve 40, by No. two unit heat systems 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 reaches 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.

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.

It is any to be familiar with although the present invention is disclosed as above with embodiment, its protection scope being not intended to limit the invention The technical staff of this technology changes and retouches made without departing from the spirit and scope of the invention, should belong to this hair Bright protection scope.

Claims

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).

7. a kind of work of such as quick start system of energy-efficient Turbo-generator Set of any of claims 1-6 Make method, it is characterised in that:

The No.1 unit superheater (1) is to pass through No.1 unit main steam for water vapour is generated after the boosting of water supply heat temperature raising Pipeline (2) enters No.1 unit high-pressure main steam regulating valve (3), when the starting that main steam condition reaches unit requires, No.1 machine Group high-pressure main steam regulating valve (3) is slowly opened according to the control logic of setting, and the water vapour of certain parameter enters No.1 machine Red switch steam turbine, progress expansion work keep rated speed operation to group high pressure cylinder (14) afterwards；After steam turbine red switch, high pressure cylinder row Vapour along No.1 unit high-pressure exhaust pipe road (16) enter No.1 unit reheater (23), carry out increasing temperature and pressure after along No.1 unit again Hot arc pipeline (24) is pressed main vapour adjusting union valve (11) to enter No.1 unit intermediate pressure cylinder (12) expansion work in No.1 unit, Then enter No.1 unit condenser (30) after low pressure (LP) cylinder expansion work；

No. two unit superheaters (50) are to pass through No. two unit main steams for water vapour is generated after the boosting of water supply heat temperature raising Pipeline (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 high-pressure main steam regulating valve (53) is slowly opened according to the control logic of setting, and the water vapour of certain parameter enters No. two Red switch steam turbine, progress expansion work keep rated speed operation to unit high pressure cylinder (42) afterwards；After steam turbine red switch, high pressure cylinder Steam discharge along No. two unit high-pressure exhaust pipe roads (38) enter No. two unit reheaters (36), carry out increasing temperature and pressure after along No. two units Reheating hot pipe (37) is pressed main vapour to adjust union valve (43) and is done into No. two unit intermediate pressure cylinders (61) expansions in No. two units Then function enters No. two unit condensers (44) after low pressure (LP) cylinder expansion work.

8. the working method of the quick start system of energy-efficient Turbo-generator Set according to claim 7, special Sign is:

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) it forms；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 shunt valve Road (4) flows through No.1 unit level-one bypass electric control valve (13), into the No.1 unit three-level of No.1 unit condenser (30) Temperature-decreased pressure reducer (31), the desuperheating water that No.1 unit level-one bypass desuperheat waterpipe (29) comes flow through the bypass of No.1 unit level-one and subtract Warm water pneumatic control valve (28) carries out pressure and temperature reducing to steam, finally enters No.1 unit condenser (30)；

The level-one bypass of No. two units bypasses electric control valve by No. two unit level-one bypass ducts (52) and No. two unit level-ones (60) it forms；The level-one bypass of No. two units is drawn from No. two Main Steam Pipeline of Unit (51), is bypassed through No. two unit level-ones Pipeline (52) flows through No. two unit level-one bypasses electric control valve (60), into No. two units three of No. two unit condensers (44) Grade temperature-decreased pressure reducer (62), the desuperheating water that No. two unit level-one bypasses desuperheat waterpipe (46) are come flow through No. two unit level-one bypasses Desuperheating water pneumatic control valve (45) carries out pressure and temperature reducing to steam, finally enters No. two unit condensers (44).

9. the working method of the quick start system of energy-efficient Turbo-generator Set according to claim 7, special Sign is:

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 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 (15) heats No. two high-pressure heaters (17) of No.1 unit, water supply is heated to by controlling its aperture 190 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 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 (40) heat No. two high-pressure heaters (39) of No. two units, water supply are heated to by controlling its aperture 190 DEG C, meet boiler thermal-state rinsing requirement.

10. the working method of the quick start system of energy-efficient Turbo-generator Set according to claim 7, special Sign is:

No.1 unit in cold start, using heating system pipeline come high row's steam of No. two units high pressure cylinder is fallen Warm, 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) Group the first drain water piping (5) and/or the second drain water piping of No.1 unit (6), by controlling the hydrophobic pneumatic tune of No.1 unit first The aperture of valve (9) and/or the second hydrophobic pneumatic control valve of No.1 unit (10) is saved, guarantees the pre-warm of No.1 unit high pressure cylinder (14) Effect；

No. two units in cold start, using heating system pipeline come high row's steam of No.1 unit high pressure cylinder is fallen Warm, 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) Group the first drain water piping (55) and/or No. two the second drain water pipings of unit (54), it is hydrophobic pneumatic by No. two units of control first The aperture of shut-off valve (59) and/or No. two the second hydrophobic pneumatic stopping valves of unit (58) guarantees the pre-warm effect of high pressure cylinder.