CN105605551B - A kind of system and method for utilization turbine by-pass steam heating pot stove feedwater - Google Patents
A kind of system and method for utilization turbine by-pass steam heating pot stove feedwater Download PDFInfo
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- CN105605551B CN105605551B CN201610144447.5A CN201610144447A CN105605551B CN 105605551 B CN105605551 B CN 105605551B CN 201610144447 A CN201610144447 A CN 201610144447A CN 105605551 B CN105605551 B CN 105605551B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
- F22D1/325—Schematic arrangements or control devices therefor
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Control Of Turbines (AREA)
Abstract
A kind of system and method for utilization turbine by-pass steam heating pot stove feedwater of the present invention, the system includes high pressure turbine by regulating valve, high pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder, the first to the 6th valve group, low voltage bypass regulating valve, boiler, condenser, the first high-pressure heater, the second high-pressure heater, the 3rd high-pressure heater, feed pump, oxygen-eliminating device and condensate pump.This comprises the following steps：1) on the extraction line after from connecting pipe on the low voltage bypass pipeline before steam turbine low-pressure bypass valve to the first high-pressure heater extraction line non-return flap；2) from connecting pipe on the high pressure turbine by pipeline after high pressure turbine by regulating valve to the 3rd high-pressure heater extraction line non-return flap after extraction line on；3) during unit starting, the vapour side that steam enters high-pressure heater is introduced from bypass, the heat of reject steam is absorbed using high-pressure heater, the water of steam condensation enters oxygen-eliminating device by flowing automatically step by step, so as to play the purpose of the heat for absorbing reject steam and working medium.
Description
Technical field：
The invention belongs to power domain, and in particular to a kind of system of utilization turbine by-pass steam heating pot stove feedwater and
Method.
Background technology：
When power station starts, in the ignition of the boiler increasing temperature and pressure not yet red switch stage, the steam that boiler is produced must pass through bypass
It is discharged into condenser.In red switch and low load stage, still there is some vapor to need to be discharged into condenser by turbine by-pass.High pressure adds
The heating vapour source of hot device is extracted steam from turbine, and high-pressure heater could be put into after band certain load after steam turbine red switch.
Current system is primarily present following deficiency：
1st, the steam of condenser is discharged into, its heat can not be utilized, is the waste of energy；
2nd, steam is discharged into condenser, improves the temperature of condensate, reduces the efficiency of steam turbine；
3rd, the temperature of condensate is too high can influence the operation of precision processing, and many power plant all occurred in initial start stage due to solidifying
Bear water temperature it is too high and cause precision processing can not bringing normally into operation；
4th, steam becomes after condensate into condenser, also to squeeze into oxygen-eliminating device using condensate pump, add condensate
The wasted work of pump；
5th, high-pressure heater can not be put into Initial Stage after Ignition, and boiler feed temperature is relatively low, be unfavorable for the safety economy of boiler
(boiler water wall temperature is low, fire box temperature is low, boiler combustion is bad, and back-end ductwork easily accumulates combustible, fuel consumption for operation
Amount is big)；
6th, coming into operation first for high-pressure heater must also be carried out after unit on-load, and high-pressure heater vapour side can not be entered
Row is rinsed in advance, extends the startup time after unit on-load.
The content of the invention：
It is an object of the invention to added for the not enough of current machine set system there is provided one kind using turbine by-pass steam
The system and method for heat boiler feedwater.
To reach above-mentioned purpose, the present invention adopts the following technical scheme that to realize：
A kind of system of utilization turbine by-pass steam heating pot stove feedwater, including high pressure turbine by regulating valve, high pressure cylinder, in
Cylinder pressure, low pressure (LP) cylinder, the second valve group, the first valve group, the 3rd valve group, the 4th valve group, low voltage bypass regulating valve, boiler,
5th valve group, condenser, the first high-pressure heater, the second high-pressure heater, the 3rd high-pressure heater, feed pump, oxygen-eliminating device,
Condensate pump and the 6th valve group；Wherein,
The first outlet of boiler is divided into two strands, first strand be connected on high pressure cylinder entrance, second strand is connected on high pressure turbine by regulation
The entrance of valve；The outlet of high pressure turbine by regulating valve is divided into two strands, and one is connected on high pressure turbine by the entrance of the 5th valve group, another
The first outlet of stock and high pressure cylinder, which is converged, is connected on boiler second entrance；The second outlet of high pressure cylinder is connected on entering for the first valve group
Mouthful, the outlet of the first valve group exports to converge with low voltage bypass to the 6th valve group and is connected on the second of the first high-pressure heater and enters
Mouthful；Entrance in high pressure cylinder first outlet pipeline upper shed adapter road to the second valve group, the outlet of the second valve group is connected on
The second entrance of two high-pressure heaters；The second outlet of boiler is divided into two strands, first strand be connected on intermediate pressure cylinder entrance, second strand connects
In the entrance of low voltage bypass regulating valve；In the inlet duct upper shed adapter road of low voltage bypass regulating valve to low voltage bypass to the 6th
Valve group entrance；The first outlet of intermediate pressure cylinder connects the entrance of low pressure (LP) cylinder, and the second outlet of intermediate pressure cylinder connects the entrance of the 4th valve group,
The outlet of 4th valve group is connected on the second entrance of oxygen-eliminating device, and the 3rd outlet of intermediate pressure cylinder connects the entrance of the 3rd valve group, the 3rd
The outlet of valve group and the outlet conduit of the 5th valve group converge the second entrance for being connected on the 3rd high-pressure heater；Low pressure (LP) cylinder goes out
Mouth is connected on the first entrance of condenser, and the outlet of low voltage bypass regulating valve is connected on the second entrance of condenser, the outlet of condenser
The entrance of condensate pump is connected on, condensate pump exports the first entrance for being connected on oxygen-eliminating device, and the outlet of oxygen-eliminating device is connected on feed pump
Entrance, the outlet of feed pump is connected on the first entrance of the 3rd high-pressure heater, and the outlet of the 3rd heater is connected on the second high pressure and added
The first entrance of hot device, the outlet of the second high-pressure heater is connected on the first entrance of the first high-pressure heater, the first hyperbaric heating
Device exports the first entrance for being connected on boiler.
Further improve of the invention is that the second valve group is two sections of draw gas cut-off gate and non-return flaps.
Further improve of the invention is that the first valve group is one section of draw gas cut-off gate and non-return flap.
Further improve of the invention is that the 3rd valve group is three sections of draw gas cut-off gate and non-return flaps.
Further improve of the invention is that the 4th valve group is four sections of draw gas cut-off gate and non-return flaps.
Further improve of the invention is that the 5th valve group is that high pressure turbine by the 3rd high-pressure heater steam source pipe ends
Door, regulation door and non-return flap.
Further improve of the invention is that the 6th valve group is that low voltage bypass to the first high-pressure heater steam source pipe ends
Door, regulation door and non-return flap.
A kind of method of utilization turbine by-pass steam heating pot stove feedwater, this method utilizes steamer based on above-mentioned one kind
The system of machine reject steam heating boiler feed water, comprises the following steps：
1) taken out from connecting pipe to the first high-pressure heater on the low voltage bypass pipeline before steam turbine low-pressure bypass valve
On extraction line after steam pipe road non-return flap；
2) from connecting pipe on the high pressure turbine by pipeline after high pressure turbine by regulating valve to the 3rd high-pressure heater extraction line
On extraction line after non-return flap；
3) during unit starting, the vapour side that steam enters high-pressure heater is introduced from bypass, high-pressure heater is utilized
The heat of reject steam is absorbed, the water of steam condensation enters oxygen-eliminating device by flowing automatically step by step, reject steam is absorbed so as to play
The purpose of heat and working medium.
Relative to prior art, the present invention has the advantage that：
A kind of system and method for utilization turbine by-pass steam heating pot stove feedwater of the present invention.It is of the invention and usual at present
The system used has compared following several respects clear advantage：
1) heat of partial bypass steam has directly been reclaimed, with energy-saving effect；
2) temperature of startup stage condensate is reduced, the efficiency of steam turbine is improved；
3) temperature of startup stage condensate is reduced, the safe operation to precision processing system is favourable；
4) exerting oneself for solidifying pump is reduced, with energy-saving effect；
5) the heating vapour source of the high-pressure heater of unit is extracted steam from turbine at present, in the vapour of startup stage high-pressure heater
Side can not come into operation, and the present invention and startup stage introduce steam enter high-pressure heater vapour side, dexterously make use of high pressure to add
The neutral gear phase of hot device, improve the utilization ratio of equipment；
6) at present in initial start stage, the temperature of feedwater is heated mainly by oxygen-eliminating device, supplemented by the heating vapour source of oxygen-eliminating device is general
Vapour, and the vapour amount of auxiliary vapour is limited, therefore feed temperature is typically difficult to improve, and this method introduces a large amount of vapour sources of bypass, passes through
Multiple link heating feedwater, feed temperature is significantly improved；
7) with the raising of feed temperature, and then boiler economizer, evaporating heating surface and fire box temperature are improved, to boiler
Initial start stage burning is favourable, is conducive to the safe operation of boiler, while having saved fuel.
8) in initial start stage, high-pressure heater can put into flushing, and it is qualified to accelerate Unit Steam Water quality, accelerate unit
Toggle speed after on-load.
Brief description of the drawings：
Fig. 1 is a kind of structured flowchart for the system that utilization turbine by-pass steam heating pot stove feeds water.
In figure：1- high pressure turbine by regulating valves, 2- high pressure cylinders, 3- intermediate pressure cylinders, 4- low pressure (LP) cylinders, the valve groups of 5- second, 6- first
Valve group, the valve groups of 7- the 3rd, the valve groups of 8- the 4th, 9- low voltage bypass regulating valves, 10- boilers, the valve groups of 11- the 5th, 12- coagulates
Vapour device, the high-pressure heaters of 13- first, the high-pressure heaters of 14- second, the high-pressure heaters of 15- the 3rd, 16- feed pumps, 17- deoxygenations
Device, 18- condensate pumps, the valve groups of 19- the 6th.
Embodiment：
The present invention is further described in detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of system of utilization turbine by-pass steam heating pot stove feedwater of the invention, including high pressure turbine by
Regulating valve 1, high pressure cylinder 2, intermediate pressure cylinder 3, low pressure (LP) cylinder 4, the second valve group 5, the first valve group 6, the 3rd valve group 7, the 4th valve
Group 8, low voltage bypass regulating valve 9, boiler 10, the 5th valve group 11, condenser 12, the first high-pressure heater 13, the second high pressure add
Hot device 14, the 3rd high-pressure heater 15, feed pump 16, oxygen-eliminating device 17, the valve group 19 of condensate pump 18 and the 6th.
Wherein, the first outlet of boiler 10 is divided into two strands, first strand be connected on high pressure cylinder 2 entrance, second strand is connected on high pressure
The entrance of bypass valve 1；The outlet of high pressure turbine by regulating valve 1 is divided into two strands, and one is connected on high pressure turbine by the 5th valve group
The first outlet of 11 entrance, another stock and high pressure cylinder 2, which is converged, is connected on the second entrance of boiler 10；The second outlet of high pressure cylinder 2 connects
In the entrance of the first valve group 6, the outlet of the first valve group 6 converges with low voltage bypass to the outlet of the 6th valve group 19 is connected on first
The second entrance of high-pressure heater 13；Entrance in the first outlet pipeline upper shed adapter road of high pressure cylinder 2 to the second valve group 5,
The outlet of second valve group 5 is connected on the second entrance of the second high-pressure heater 14；The second outlet of boiler 10 is divided into two strands, first
Stock is connected on the entrance of intermediate pressure cylinder 3, second strand be connected on low voltage bypass regulating valve 9 entrance；In the inlet tube of low voltage bypass regulating valve 9
Road upper shed adapter road is to low voltage bypass to the entrance of the 6th valve group 19；The first outlet of intermediate pressure cylinder 3 connects the entrance of low pressure (LP) cylinder 4,
The second outlet of intermediate pressure cylinder 3 connects the entrance of the 4th valve group 8, and the outlet of the 4th valve group 8 is connected on the second entrance of oxygen-eliminating device 17,
3rd outlet of intermediate pressure cylinder 3 connects the entrance of the 3rd valve group 7, the outlet of the 3rd valve group 7 and the outlet of the 5th valve group 11
Converge the second entrance for being connected on the 3rd high-pressure heater 15 in road；The outlet of low pressure (LP) cylinder 4 is connected on the first entrance of condenser 12, low pressure
The outlet of bypass valve 9 is connected on the second entrance of condenser 12, and the outlet of condenser 12 is connected on the entrance of condensate pump 18, coagulates
Bear water pump 18 and export the first entrance for being connected on oxygen-eliminating device 17, the outlet of oxygen-eliminating device 17 is connected on the entrance of feed pump 16, feed pump 16
Outlet be connected on the first entrance of the 3rd high-pressure heater 15, the outlet of the 3rd heater 15 is connected on the second high-pressure heater 14
First entrance, the outlet of the second high-pressure heater 14 is connected on the first entrance of the first high-pressure heater 13, the first high-pressure heater
13 outlets are connected on the first entrance of boiler 10.Wherein, the first valve group 6 is one section of draw gas cut-off gate and non-return flap, the second valve
Group 5 is two sections of draw gas cut-off gate and non-return flaps, and the 3rd valve group 7 is three sections of draw gas cut-off gate and non-return flaps, and the 4th valve group 8 is
Four sections of draw gas cut-off gate and non-return flaps, the 5th valve group 11 are that high pressure turbine by the 3rd high-pressure heater steam source pipe cut-off gate is adjusted
Door and non-return flap, the 6th valve group 19 are that low voltage bypass to the first high-pressure heater steam source pipe cut-off gate adjusts door and non-return flap.
As shown in figure 1, a kind of method of utilization turbine by-pass steam heating pot stove feedwater of the invention, including following step
Suddenly：
Drawn gas from connecting pipe to the first high-pressure heater on the low voltage bypass pipeline before steam turbine low-pressure bypass valve
On extraction line after pipeline non-return flap；
It is inverse to the 3rd high-pressure heater extraction line from connecting pipe on the high pressure turbine by pipeline after high pressure turbine by regulating valve
Only on extraction line behind the door；
Before unit starting, it is ensured that the first high-pressure heater, the second high-pressure heater, drawing gas for the 3rd high-pressure heater are cut
Only door and non-return flap are closed and firm isolation.Open the first high-pressure heater, the second high-pressure heater, the 3rd high-pressure heater
Crisis draining valve, it is ensured that the water level protection of high-pressure heater is normally put into.
Open from low voltage bypass and high pressure turbine by the first high-pressure heater, the isolating door of the 3rd high-pressure heater, it is crack
Door is adjusted, during unit starting, when carrying out high pressure turbine by, low voltage bypass heating coil, also to high pressure turbine by, low voltage bypass to the
The pipeline of one high-pressure heater, the 3rd high-pressure heater and oxygen-eliminating device carries out heating coil.
After each abundant heating coil of road pipeline, high pressure turbine by maintains main steam line pressure and flow to meet unit starting requirement,
Big low voltage bypass is progressively opened to the regulation door of the first high-pressure heater, while progressively turning down low voltage bypass regulation door, low pressure is maintained
Bypass pressure meets unit starting requirement, and the first high-pressure heater vapour lateral pressure of observation and water level, observation are noted in the process
First high-pressure heater water side temperature rise situation, it is ensured that the safe operation of the first high-pressure heater.
After first high-pressure heater input is normal, if the aperture of now low voltage bypass regulation door is also than larger, progressively
Big high pressure turbine by is opened to the regulation door of the 3rd high-pressure heater, while progressively turning down low voltage bypass regulation door, low voltage bypass is maintained
Pressure meets unit starting requirement, and the 3rd high-pressure heater vapour lateral pressure of observation and water level, observation the 3rd are noted in the process
High-pressure heater water side temperature rise situation, it is ensured that the safe operation of the 3rd high-pressure heater.
High-pressure heater input is normal, high-pressure heater it is hydrophobic it is qualified after, it is hydrophobic to be returned by the way of flowing automatically step by step
Receive oxygen-eliminating device.
After set grid-connection, on-load, as bypass is progressively turned down, reject steam amount is gradually reduced, and progressively exits bypass
Steam and isolates road steam of high-pressure heater to the steam of high-pressure heater, and high-pressure heater is thrown according to original mode
Enter operation.
Claims (6)
1. a kind of system of utilization turbine by-pass steam heating pot stove feedwater, it is characterised in that including high pressure turbine by regulating valve
(1), high pressure cylinder (2), intermediate pressure cylinder (3), low pressure (LP) cylinder (4), the second valve group (5), the first valve group (6), the 3rd valve group (7),
4th valve group (8), low voltage bypass regulating valve (9), boiler (10), the 5th valve group (11), condenser (12), the first high pressure add
Hot device (13), the second high-pressure heater (14), the 3rd high-pressure heater (15), feed pump (16), oxygen-eliminating device (17), condensate pump
And the 6th valve group (19) (18)；Wherein,
The first outlet of boiler (10) is divided into two strands, first strand be connected on high pressure cylinder (2) entrance, second strand is connected on high pressure turbine by tune
Save the entrance of valve (1)；The outlet of high pressure turbine by regulating valve (1) is divided into two strands, and one is connected on high pressure turbine by the 5th valve group
(11) first outlet of entrance, another stock and high pressure cylinder (2), which is converged, is connected on boiler (10) second entrance；The of high pressure cylinder (2)
Two outlets are connected on the entrance of the first valve group (6), and outlet and the low voltage bypass to the 6th valve group (19) of the first valve group (6) go out
Mouth converges the second entrance for being connected on the first high-pressure heater (13)；In high pressure cylinder (2) first outlet pipeline upper shed adapter road extremely
The entrance of second valve group (5), the outlet of the second valve group (5) is connected on the second entrance of the second high-pressure heater (14)；Boiler
(10) second outlet is divided into two strands, first strand be connected on intermediate pressure cylinder (3) entrance, second strand is connected on low voltage bypass regulating valve (9)
Entrance；Enter in the inlet duct upper shed adapter road of low voltage bypass regulating valve (9) to low voltage bypass to the 6th valve group (19)
Mouthful；The first outlet of intermediate pressure cylinder (3) connects the entrance of low pressure (LP) cylinder (4), and the second outlet of intermediate pressure cylinder (3) connects the 4th valve group (8)
Entrance, the outlet of the 4th valve group (8) is connected on the second entrance of oxygen-eliminating device (17), and the 3rd outlet of intermediate pressure cylinder (3) connects the 3rd valve
The entrance of door group (7), the outlet of the 3rd valve group (7) and the outlet conduit of the 5th valve group (11), which converge, to be connected on the 3rd high pressure and adds
The second entrance of hot device (15)；The outlet of low pressure (LP) cylinder (4) is connected on the first entrance of condenser (12), low voltage bypass regulating valve (9)
Outlet be connected on the second entrances of condenser (12), the outlet of condenser (12) is connected on the entrance of condensate pump (18), condensate
Pump (18) exports the first entrance for being connected on oxygen-eliminating device (17), and the outlet of oxygen-eliminating device (17) is connected on the entrance of feed pump (16), feeds water
The outlet of pump (16) is connected on the first entrance of the 3rd high-pressure heater (15), and the outlet of the 3rd heater (15) is connected on the second high pressure
The first entrance of heater (14), the outlet of the second high-pressure heater (14) is connected on the first of the first high-pressure heater (13) and entered
Mouthful, the first high-pressure heater (13) exports the first entrance for being connected on boiler (10)；
Second valve group (5) is two sections of draw gas cut-off gate and non-return flaps；
First valve group (6) is one section of draw gas cut-off gate and non-return flap.
2. a kind of system of utilization turbine by-pass steam heating pot stove feedwater according to claim 1, it is characterised in that
3rd valve group (7) is three sections of draw gas cut-off gate and non-return flaps.
3. a kind of system of utilization turbine by-pass steam heating pot stove feedwater according to claim 1, it is characterised in that
4th valve group (8) is four sections of draw gas cut-off gate and non-return flaps.
4. a kind of system of utilization turbine by-pass steam heating pot stove feedwater according to claim 1, it is characterised in that
5th valve group (11) is high pressure turbine by the 3rd high-pressure heater steam source pipe cut-off gate, adjusts door and non-return flap.
5. a kind of system of utilization turbine by-pass steam heating pot stove feedwater according to claim 1, it is characterised in that
6th valve group (19) is low voltage bypass to the first high-pressure heater steam source pipe cut-off gate, adjusts door and non-return flap.
6. a kind of method of utilization turbine by-pass steam heating pot stove feedwater, it is characterised in that this method is based on claim 1
To a kind of system of utilization turbine by-pass steam heating pot stove feedwater any one of 5, comprise the following steps：
1) from connecting pipe on the low voltage bypass pipeline before steam turbine low-pressure bypass valve to the first high-pressure heater extraction steam pipe
On extraction line after road non-return flap；
2) from connecting pipe on the high pressure turbine by pipeline after high pressure turbine by regulating valve to the 3rd high-pressure heater extraction line check
On extraction line behind the door；
3) during unit starting, the vapour side that steam enters high-pressure heater is introduced from bypass, is absorbed using high-pressure heater
The heat of reject steam, the water of steam condensation enters oxygen-eliminating device by flowing automatically step by step, so as to play the heat for absorbing reject steam
With the purpose of working medium.
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| CN201610144447.5A CN105605551B (en) | 2016-03-14 | 2016-03-14 | A kind of system and method for utilization turbine by-pass steam heating pot stove feedwater |
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| CN201610144447.5A CN105605551B (en) | 2016-03-14 | 2016-03-14 | A kind of system and method for utilization turbine by-pass steam heating pot stove feedwater |
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| CN108954291A (en) * | 2018-07-18 | 2018-12-07 | 深能合和电力（河源）有限公司 | A kind of power station unit pipe-line system |
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| CN114738066B (en) * | 2022-04-22 | 2023-07-18 | 华能景泰热电有限公司 | Device and method for heating water supply by utilizing bypass heat of steam turbine |
| CN115506863B (en) * | 2022-10-24 | 2024-05-07 | 西安热工研究院有限公司 | Thermodynamic system with double bypass high-low level arrangement frequency decoupling control |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0942606A (en) * | 1995-07-31 | 1997-02-14 | Babcock Hitachi Kk | Once-through boiler steam temperature control device |
| CN1587651A (en) * | 2004-08-16 | 2005-03-02 | 上海平安高压调节阀门厂 | High and low pressure by-path system |
| CN202188482U (en) * | 2011-06-02 | 2012-04-11 | 章礼道 | Pumpless direct-current furnace startup system capable of fully recycling working media and heat |
| CN205447710U (en) * | 2016-03-14 | 2016-08-10 | 西安热工研究院有限公司 | System for utilize steam turbine bypass steam heating boiler feed water |
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