CN207420646U - For the energy conserving system of steam power plant's multi-heat source industrial heating - Google Patents
For the energy conserving system of steam power plant's multi-heat source industrial heating Download PDFInfo
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- CN207420646U CN207420646U CN201721160129.4U CN201721160129U CN207420646U CN 207420646 U CN207420646 U CN 207420646U CN 201721160129 U CN201721160129 U CN 201721160129U CN 207420646 U CN207420646 U CN 207420646U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model discloses a kind of energy conserving systems for steam power plant's multi-heat source industrial heating, it is characterised in that：Including boiler, steam turbine high-pressure cylinder, Steam Turbine Through IP Admission, turbine low pressure cylinder, rotating barrier, h grades of bleeder heaters, k grades of bleeder heaters, j grades of bleeder heaters, First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger, pressure matcher, oxygen-eliminating device, feed pump, temperature-decreased pressure reducer and steam user.The utility model not only can fully recycle the degree of superheat of heating steam, improve system energy efficiency, reduce the acting capacity loss of heat regenerative system, or based on acting capacity loss minimum, the principle of irreversible loss minimum, optimize the control method of industrial heating, during so as to ensure that the operation of thermal power plant unit full working scope, it can be run in the case of maximal efficiency.
Description
Technical field
The utility model belongs to cogeneration of heat and power technical field, and in particular to a kind of for steam power plant's multi-heat source industrial heating
Energy conserving system is particularly suitable for carrying out the thermal power plant of industrial heating.
Background technology
At present, China's policy gradually payes attention to the popularization of new energy, reduces the ratio of fired power generating unit so that the hair of fired power generating unit
Exhibition faces a severe test.Currently, the steam power plant of extraction steam for factories central heating is had been carried out early stage for China, due to heat supply process
Simple extensive, energy loss is serious so that the comprehensive energy utilization ratio of steam power plant can not further improve, and many has carried out
The steam power plant of industrial heating does not realize profit or even situation about losing occurs.It is exactly machine to cause this phenomenon main cause
Group heat supply design is all by operating condition design, and in actual operation, unit load fluctuation is frequent, and particularly unit is in underload
During operation, in order to meet steam parameter needed for industrial heating, usually all using modes such as throttlings, caused energy loss is very
Seriously, profit can not be realized by having thereby resulted in thermoelectricity unit.
At present, the main technology in the field has following two：1) a kind of thermal power plant heat supply of suitable variable working condition unit
Energy conserving system (patent No. 201620138236.6), 2) the adjusting joint hot press mesolow industry confession of patent mesolow unicom butterfly valve
Vapour method and system (patent No. 201610320911.1).Its Patent 1 exists compared with big limitation, first, unrecovered utilize steam
The degree of superheat second is that simply simply solving the negative effect of the single steam extraction port in unit variable load operation, but does not carry
For its how the method for carrying out port optimum choice operation, can not really solve the problems, such as high energy consumption.And patent 2 is directed to, not only
Its application range is different, and its technology is there are certain limitation, when in unit high load capacity, normal commercial steam extraction port
For intermediate pressure cylinder steam discharge, and the utility model normal commercial steam extraction port is intermediate pressure cylinder intermediate extraction port, it is seen that its confession applied
Hot unit parameter be higher than the utility model is related to thermal power plant unit；Second is that it does not recycle the degree of superheat of steam, and its fully
The temperature parameter of the high and low pressure steam of hot press is non-adjustable, can not promote the mass ratio of induced-to-inducing air of hot press, therefore it improves efficiency and deposits
In certain limitation.
Utility model content
Based on the above situation, the utility model overcomes above-mentioned deficiency in the prior art, it is proposed that a kind of design is closed
It manages, dependable performance, is advantageously implemented the energy conserving system for steam power plant's multi-heat source industrial heating of steam power plant's multi-source heating.
The technical scheme in the invention for solving the above technical problem is：One kind is used for steam power plant's multi-heat source industrial heating
Energy conserving system, it is characterised in that：Including boiler, steam turbine high-pressure cylinder, Steam Turbine Through IP Admission, turbine low pressure cylinder, rotation every
Plate, h grade bleeder heater, k grades of bleeder heaters, j grades of bleeder heaters, First Heat Exchanger, the second heat exchanger, the 3rd heat exchange
Device, pressure matcher, oxygen-eliminating device, feed pump, temperature-decreased pressure reducer and steam user；
Boiler, steam turbine high-pressure cylinder, Steam Turbine Through IP Admission, turbine low pressure cylinder are sequentially connected, the row of steam turbine high-pressure cylinder
Steam ports is connected with cold extraction steam pipe again, and the second valve is provided on cold extraction steam pipe again, and rotating barrier passes through extraction steam for factories Guan Yu tri-
Heat exchanger connects, and the 3rd heat exchanger is provided with extraction steam for factories bypass, and in heat source import, thermal source outlet and the work of the 3rd heat exchanger
The 15th valve, the 16th valve, the 14th valve are sequentially installed in industry steam extraction bypass, the thermal source outlet of the 3rd heat exchanger leads to
Header vapor is crossed to be connected with steam user；
The steam drain of Steam Turbine Through IP Admission is connected by middle row's extraction steam pipe with the second heat exchanger, and in the heat of the second heat exchanger
The first valve and the 13rd valve, thermal source outlet and the pressure of the second heat exchanger are sequentially installed in source import and thermal source outlet
The low pressure inlet connection of orchestration；Cold extraction steam pipe again is connected by the first cold branch pipe again with First Heat Exchanger, and in First Heat Exchanger
Heat source import and thermal source outlet on be sequentially installed with the 7th valve and the 8th valve, the thermal source outlet and pressure of First Heat Exchanger
The high-pressure inlet connection of adaptation；The outlet of pressure matcher is connected by header vapor with steam user, and in pressure match
21st valve is installed in the outlet of device；
Cold extraction steam pipe again is connected by the second cold branch pipe again with temperature-decreased pressure reducer, and temperature-decreased pressure reducer steam inlet and
Be sequentially installed with the 22nd valve and the 25th valve on steam (vapor) outlet, the outlet of temperature-decreased pressure reducer by header vapor with
Steam user connects；
First Heat Exchanger is connected in parallel with h grades of bleeder heaters, and feed-water inlet, First Heat Exchanger in First Heat Exchanger
Feedwater outlet, be sequentially installed with the 6th valve on the feed-water inlet of h grades of bleeder heaters and the feedwater outlet of h grades of bleeder heaters
Door, the 5th valve, the 4th valve and the 3rd valve；
Second heat exchanger is connected in parallel with k grades of bleeder heaters, and feed-water inlet, the second heat exchanger in the second heat exchanger
Feedwater outlet, be sequentially installed with the 12nd on the feed-water inlet of k grades of bleeder heaters and the feedwater outlet of k grades of bleeder heaters
Valve, the 11st valve, the tenth valve and the 9th valve；
3rd heat exchanger is connected in parallel with j grades of bleeder heaters, and feed-water inlet, the 3rd heat exchanger in the 3rd heat exchanger
Feedwater outlet, be sequentially installed with the 20th on the feed-water inlet of j grades of bleeder heaters and the feedwater outlet of j grades of bleeder heaters
Valve, the 19th valve, the 18th valve and the 17th valve；
First Heat Exchanger described in the utility model and the second heat exchanger are respectively arranged with high steam bypass and low-pressure steam
Bypass, and bypassed in high steam bypass equipped with the 26th valve, low-pressure steam and the 27th valve is housed.
The desuperheat water inlet of temperature-decreased pressure reducer described in the utility model and the feedwater outlet of oxygen-eliminating device connect, and subtract in desuperheat
The 23rd valve and the 24th valve are respectively provided on the desuperheating water inlet tube of depressor and the feedwater outlet pipe of oxygen-eliminating device；
H grades of bleeder heater described in the utility model, j grades of bleeder heaters, feed pump, oxygen-eliminating device and k grades of backheats heating
Device is sequentially connected in order.
A kind of intelligent control method of energy conserving system for steam power plant's multi-heat source industrial heating, it is characterised in that：
No.1 thermometer, No.1 pressure gauge and No.1 flowmeter, the feedwater of First Heat Exchanger are provided on cold extraction steam pipe again
Outlet is provided with ten No. six thermometers, and the feed-water inlet of First Heat Exchanger is provided with No. two thermometers and No. two flowmeters, and second
The feedwater outlet of heat exchanger is provided with ten No. five thermometers, and the feed-water inlet of the second heat exchanger is provided with No. four thermometers and No. three
Flowmeter, is provided with No. five pressure gauges, No. ten thermometers and No. six flowmeters on extraction steam for factories pipe, the heat source of the 3rd heat exchanger into
Mouth is provided with No. seven flowmeters, and the feedwater outlet of the 3rd heat exchanger is equipped with ten No. four thermometers, the feedwater of the 3rd heat exchanger into
Mouth is equipped with No. eight flowmeters and ride on Bus No. 11 thermometer, and ten No. two thermometers are provided between the 16th valve and header vapor,
No. five thermometers, No. two pressure gauges and No. four flowmeters are provided on middle row's extraction steam pipe, the high-pressure inlet of pressure matcher is set
There are No. three thermometers, the low pressure inlet of pressure matcher is provided with No. six thermometers, and the outlet of pressure matcher is provided with No. seven
Thermometer and No. three pressure gauges, the steam (vapor) outlet of temperature-decreased pressure reducer are provided with No. nine thermometers and No. four pressure gauges, and the 23rd
Be provided with No. eight thermometers and No. five flowmeters between valve and the feedwater outlet of oxygen-eliminating device, the steam of h grades of bleeder heaters into
Mouth is connected with ten No. nine thermometers and No. nine pressure gauges, the steam inlets of j grade bleeder heaters be connected with ten No. eight thermometers with
No. eight pressure gauges, the steam inlet of k grades of bleeder heaters are connected with ten No. seven thermometers and No. seven pressure gauges, the vapour of rotating barrier
Turbine steam outlet is provided with ten No. three thermometers, No. six pressure gauges and No. nine flowmeters.
Its configuration constraint condition is as follows：
The pressure of industrial steam supply demand is Pg, the temperature of industrial steam supply demand is Tg；Under different unit operating modes, steam turbine is low
The exhaust steam pressure of cylinder pressure is Pwi, the exhaust temperature of turbine low pressure cylinder is Twi, Steam Turbine Through IP Admission without spin partition plate when industry take out
The steam pressure of vapour is Pci, Steam Turbine Through IP Admission without spin partition plate when extraction steam for factories vapor (steam) temperature Tci, the pressure of cold steam again
For PB1, the temperature of cold steam again is TA1, PB1And TA1It is measured by No.1 pressure gauge and No.1 thermometer；
1) heat supply outward of extraction steam for factories pipe is passed through：Work as Pci＜ PgWhen, by the aperture for adjusting rotating barrier so that No. five pressures
The numerical value P of power tableB5Meet PB5≥Pg, at this time correlate meter numerical value be：No. six pressure gauges are PB6, No. eight pressure gauges are PB8, No. ten
Thermometer is TA10, ten No. two thermometers are TA12, ten No. three thermometers are TA13, ten No. eight thermometers are TA18, No. six flowmeters
For FC6, No. seven flowmeters are FC7, No. nine flowmeters are FC9；Meanwhile feedwater is heated using the 3rd heat exchanger, it gives at this time
The meter parameter of water is：Ride on Bus No. 11 thermometer is TA11, ten No. four thermometers are TA14, No. eight flowmeters are FC8；
It is using the acting capacity loss constraint function of rotating barrier progress industrial heating at this time：
Q11=FC8×CP×(TA14-TA11)
Wqx1=FC6×(H(A10,B5)-Hwi)+FC9×(Hci-H(A13,B6))-F11×(H(A18,B8)-Hwi)
In formula：Q11, the heat for absorption of feeding water in the 3rd heat exchanger, KJ/h；FC, fluid flow when flowmeter is C, kg/
h；CP, the specific heat capacity of feedwater, kJ/ (kg DEG C)；F11, vapor (steam) temperature and steam pressure are respectively TA18And PB8Steam flow,
kg/h；Vapor (steam) temperature and steam pressure are respectively TAAnd PBWhen corresponding hydrophobic enthalpy, KJ/kg；H(A,B), vapor (steam) temperature
It is respectively T with steam pressureAAnd PBWhen corresponding enthalpy, KJ/kg；Wqx1, acting capacity loss amount during rotating barrier heat supply,
KJ/h；HX, vapor (steam) temperature and steam pressure are respectively TXAnd PXWhen corresponding enthalpy, KJ/kg；
It is using the irreversible loss constraint function of rotating barrier progress industrial heating at this time：
Wex1=FC6×(E(A10,B5)-E(A12,B5))+FC9×(Eci-E(A13,B6))-FC8×(EA14-EA11)
In formula：Wex1, irreversible loss amount during rotating barrier heat supply, KJ/h；E(A,B), vapor (steam) temperature and steam pressure divide
It Wei not TAAnd PBWhen corresponding ratioKJ/kg；EX, vapor (steam) temperature and steam pressure are respectively TXAnd PXWhen corresponding ratioKJ/
kg；EA, feed temperature TAWhen corresponding ratioKJ/kg；FC, fluid flow when flowmeter is C, kg/h；
2) when by pressure matcher heat supply outward, Pci＜ Pg, high steam is cold steam extraction again at this time, and low-pressure steam is vapour
Turbine intermediate pressure cylinder steam discharge by the matching of high steam and low-pressure steam, forms required industrial steam, at this time associated steam
Instrument numerical value be：No.1 pressure gauge is PB1, No. two pressure gauges are PB2, No. three pressure gauges are PB3, No. seven pressure gauges are PB7, nine
Number pressure gauge is PB9, No.1 thermometer is TA1, No. three thermometers are TA3, No. five thermometers are TA5, No. six thermometers are TA6, seven
Number thermometer is TA7, ten No. seven thermometers are TA17, ten No. nine thermometers are TA19, No.1 flowmeter is FC1, No. four flowmeters are
FC4；Feedwater is heated successively using First Heat Exchanger and the second heat exchanger, the meter parameter to feed water at this time is：No. two temperature
Table is TA2, No. four thermometers are TA4, ten No. five thermometers are TA15, ten No. six thermometers are TA16, No. two flowmeters are FC2, three
Number flowmeter is FC3；
It is using the acting capacity loss constraint function of pressure matcher progress industrial heating at this time：
Q9=FC2×CP×(TA16-TA2)
Q10=FC3×CP×(TA15-TA3)
Wqx2=FC1×(H(A1,B1)-Hwi)+FC2×(H(A2,B2)-Hwi)-F9×(H(A19,B9)-Hwi)-F10×(H(A17,B7)-
Hwi)
In formula：Q9, the heat for absorption of feeding water in First Heat Exchanger, KJ/h；F9, vapor (steam) temperature and steam pressure are respectively TA19
And PB9Steam flow, kg/h；Q10, the heat for absorption of feeding water in the second heat exchanger, KJ/h；F10, vapor (steam) temperature and steam pressure
Respectively TA17And PB7Steam flow, kg/h；Wqx2, acting capacity loss amount during pressure matcher heat supply, KJ/h；
It is using the irreversible loss constraint function of pressure matcher progress industrial heating at this time：
Wex2=(FC1×E(A1,B1)+FC4×E(A5,B2)-(FC1+FC4)×E(A7,B3))-FC2×(EA16-EA2)-FC3×(EA15-
EA3)
In formula：Wex2, irreversible loss amount during pressure matcher heat supply, KJ/h；
The mass ratio of induced-to-inducing air function of pressure matcher is at this time：
In formula：U, the mass ratio of induced-to-inducing air function of pressure matcher；
3) when by temperature-decreased pressure reducer heat supply outward, Pci＜ Pg, steam extraction again cold at this time is as high steam, giving after deoxygenation
Water is as desuperheating water, and high steam forms required industrial steam after pressure and temperature reducing, at this time the numerical value of associated steam
For：No.1 pressure gauge is PB1, No. four pressure gauges are PB4, No.1 thermometer is TA1, No. nine thermometers are TA9, No.1 flowmeter is
FC1；The meter parameter to feed water at this time is：No. eight thermometers are TA8, No. five flowmeters are FC5；
It is using the acting capacity loss constraint function of temperature-decreased pressure reducer progress industrial heating at this time：
Wqx3=FC1×(H(A1,B1)-Hwi)
In formula：Wqx3, acting capacity loss amount during temperature-decreased pressure reducer heat supply, KJ/h；
It is using the irreversible loss constraint function of temperature-decreased pressure reducer progress industrial heating at this time：
Wex3=(FC1×E(A1,B1)+FC5×EA8-(FC1+FC5)×E(A9,B4))
In formula：Wex3, irreversible loss amount during temperature-decreased pressure reducer heat supply, KJ/h；
When unit generation load is at full capacity, meet Pci≥Pg, rotating barrier aperture is 100% at this time, utilizes industry
The external heat supply of extraction steam pipe；
When unit generation load continuously decreases, if still meeting Pci≥Pg, rotating barrier aperture is 100% at this time, is continued
Utilize the external heat supply of extraction steam for factories pipe；If there is Pci＜ Pg, judge that the foundation of industrial steam supplying method is as follows at this time：
Work as satisfaction：When, the aperture of Selection utilization adjusting rotating barrier, industrial steam needed for formation,
So that PB5≥Pg, and utilize the external heat supply of extraction steam for factories pipe；
Work as satisfaction：When, the aperture of Selection utilization adjusting rotating barrier, industrial steam needed for formation,
So that PB5≥Pg, and utilize the external heat supply of extraction steam for factories pipe；
Work as satisfaction：When, Selection utilization pressure matcher passes through high steam and low-pressure steam
Matching, industrial steam needed for formation so that PB3≥Pg；
Work as satisfaction：When, the aperture of Selection utilization adjusting rotating barrier, industrial steam needed for formation,
So that PB5≥Pg, and utilize the external heat supply of extraction steam for factories pipe；
Work as satisfaction：When, Selection utilization temperature-decreased pressure reducer passes through pressure and temperature reducing by high steam
Afterwards, industrial steam needed for formation so that PB4≥Pg；
Work as satisfaction：When, Selection utilization pressure matcher passes through high steam and low-pressure steam
Matching, industrial steam needed for formation so that PB3≥Pg；
Work as satisfaction：When, Selection utilization temperature-decreased pressure reducer passes through pressure and temperature reducing by high steam
Afterwards, industrial steam needed for formation so that PB4≥Pg。
The utility model step is as follows：
When rotating barrier is selected to carry out industrial heating, the aperture of rotating barrier is adjusted so that the numerical value of No. five pressure gauges
PB5Meet PB5≥Pg；The aperture of the 15th valve, the 16th valve and the 14th valve is adjusted simultaneously, by adjusting into the 3rd
The steam flow of heat exchanger so that the numerical value T of ten No. two thermometersA12Meet TA12≥Tg, so as to ensure the steam parameter confessed
Meets the needs of steam user；
When pressure matcher is selected to carry out industrial heating, open and adjust the second valve, the 8th valve of the 7th valve, it is cold
Steam is introduced into First Heat Exchanger and carries out heat exchange cooling again, opens and adjusts the first valve, the 13rd valve, Steam Turbine Through IP Admission
Steam discharge is introduced into the second heat exchanger and carries out heat exchange cooling, while adjusts the 26th valve and the 27th valve so that No. three
The numerical value T of thermometerA3With the numerical value T of No. six thermometersA6It can ensure mass ratio of induced-to-inducing airIt is cold for optimum value
Steam is matched in pressure matcher with Steam Turbine Through IP Admission steam discharge again so that the numerical value and No. seven temperature of No. three pressure gauges
The numerical value of table meets P respectivelyB3≥Pg、TA7≥Tg, so as to ensure that the steam parameter confessed meets the needs of steam user；
When temperature-decreased pressure reducer is selected to carry out industrial heating, open and adjust the second valve, the 22nd valve and second
13 valves adjust cold steam flow again and attemperation water flow into temperature-decreased pressure reducer, form middle pressure steam and confess so that four
Number numerical value of pressure gauge and the numerical value of No. nine thermometers meet P respectivelyB4≥Pg、TA9≥Tg, so as to ensure the steam parameter confessed
Meets the needs of steam user.
The utility model compared with prior art, has the following advantages and effect：1) the utility model supplies existing industry
The main monotechnics of heat efficiently integrate, and solves the technical limitation of monotechnics application, also increases industrial confession
The heat source diversity of heat；2) the utility model has fully recycled the degree of superheat of heating steam, not only increases system energy efficiency,
The acting capacity loss of heat regenerative system is also reduced simultaneously；3) the utility model is based on that acting capacity loss is minimum, irreversible damage
Lose minimum principle, optimum choice heat-supplying mode, can be in maximal efficiency during so as to ensure that the operation of thermal power plant unit full working scope
In the case of run.
Description of the drawings
Fig. 1 is structure diagram of the utility model embodiment for the energy conserving system of steam power plant's multi-heat source industrial heating.
Fig. 2 is instrument installation signal of the utility model embodiment for the energy conserving system of steam power plant's multi-heat source industrial heating
Figure.
Fig. 3 is the instrument scheme of installation of h grades of bleeder heaters of the utility model embodiment.
Fig. 4 is the instrument scheme of installation of j grades of bleeder heaters of the utility model embodiment.
Fig. 5 is the instrument scheme of installation of k grades of bleeder heaters of the utility model embodiment.
Fig. 6 is the instrument scheme of installation of the utility model embodiment oxygen-eliminating device.
Fig. 7 is enlarged structure schematic diagram at M in Fig. 2.
Specific embodiment
Below in conjunction with the accompanying drawings and pass through embodiment the utility model is described in further detail, following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment.
Referring to Fig. 1-7, the present embodiment is related to a kind of energy conserving system for steam power plant's multi-heat source industrial heating, including boiler
1st, steam turbine high-pressure cylinder 2, Steam Turbine Through IP Admission 3, turbine low pressure cylinder 4, rotating barrier 5, h grades of bleeder heaters 6, k grades of backheats
Heater 7, j grade bleeder heater 8, First Heat Exchanger 9, the 3rd heat exchanger 11, pressure matcher 12, remove second heat exchanger 10
Oxygen device 13, feed pump 14, temperature-decreased pressure reducer 15 and steam user 16.
Boiler 1, steam turbine high-pressure cylinder 2, Steam Turbine Through IP Admission 3, turbine low pressure cylinder 4 are sequentially connected, steam turbine high-pressure cylinder 2
Steam drain be connected with cold extraction steam pipe again 23, be provided with the second valve 32 on cold extraction steam pipe again 23, rotating barrier 5 passes through industry and takes out
Steam pipe 21 is connected with the 3rd heat exchanger 11, and the 3rd heat exchanger 11 is provided with extraction steam for factories bypass 27, and in the 3rd heat exchanger 11
The 15th valve 45, the 16th valve the 46, the 14th are sequentially installed in heat source import, thermal source outlet and extraction steam for factories bypass 27
Valve 44, the thermal source outlet of the 3rd heat exchanger 11 are connected by header vapor 26 with steam user 16.
The steam drain of Steam Turbine Through IP Admission 3 is connected by middle row's extraction steam pipe 22 with the second heat exchanger 10, and in the second heat exchange
The first valve 31 and the 13rd valve 43, the heat of the second heat exchanger 10 are sequentially installed in the heat source import and thermal source outlet of device 10
Source outlet is connected with the low pressure inlet of pressure matcher 12；Cold extraction steam pipe again 23 passes through the first cold branch pipe again 24 and First Heat Exchanger
9 connections, and the 7th valve 37 and the 8th valve 38 are sequentially installed in the heat source import of First Heat Exchanger 9 and thermal source outlet,
The thermal source outlet of First Heat Exchanger 9 is connected with the high-pressure inlet of pressure matcher 12；The outlet of pressure matcher 12 passes through steam supply
Main pipe 26 is connected with steam user 16, and the 21st valve 51 is equipped in the outlet of pressure matcher 12.
Cold extraction steam pipe again 23 is connected by the second cold branch pipe again 25 with temperature-decreased pressure reducer 15, and in the steaming of temperature-decreased pressure reducer 15
The 22nd valve 52 and the 25th valve 55, the outlet of temperature-decreased pressure reducer 15 are sequentially installed on vapor inlet and steam (vapor) outlet
It is connected by header vapor 26 with steam user 16.
First Heat Exchanger 9 and h grades of bleeder heater 6 is connected in parallel, and feed-water inlet in First Heat Exchanger 9, first is changed
It is installed successively on the feedwater outlet of the feedwater outlet of hot device 9, the feed-water inlet of h grades of bleeder heaters 6 and h grades of bleeder heaters 6
There are the 6th valve 36, the 5th valve 35, the 4th valve 34 and the 3rd valve 33.
Second heat exchanger 10 and k grades bleeder heater 7 is connected in parallel, and feed-water inlet in the second heat exchanger 10, second
Pacify successively on the feedwater outlet of the feedwater outlet of heat exchanger 10, the feed-water inlet of k grades of bleeder heaters 7 and k grades of bleeder heaters 7
Equipped with the 12nd valve 42, the 11st valve 41, the tenth valve 40 and the 9th valve 39.
3rd heat exchanger 11 and j grades of bleeder heater 8 is connected in parallel, and feed-water inlet in the 3rd heat exchanger 11, the 3rd
Pacify successively on the feedwater outlet of the feedwater outlet of heat exchanger 11, the feed-water inlet of j grades of bleeder heaters 8 and j grades of bleeder heaters 8
Equipped with the 20th valve 50, the 19th valve 49, the 18th valve 48 and the 17th valve 47.
9 and second heat exchanger 10 of First Heat Exchanger is respectively arranged with high steam bypass 28 and low-pressure steam bypass 29, and
Equipped with the 26th valve 56 in high steam bypass 28, low-pressure steam, which bypasses, is equipped with the 27th valve 57 on 29.
The desuperheat water inlet of temperature-decreased pressure reducer 15 is connected with the feedwater outlet of oxygen-eliminating device 13, and subtracting in temperature-decreased pressure reducer 15
Warm water inlet tube on the feedwater outlet pipe of oxygen-eliminating device 14 with being respectively provided with the 23rd valve 53 and the 24th valve 54.
H grades of bleeder heaters 6, j grades of bleeder heaters 8, feed pump 14, oxygen-eliminating device 13 and k grades of bleeder heaters 7 are in order
It is sequentially connected.
The present embodiment also provides the intelligent control method of the energy conserving system for steam power plant's multi-heat source industrial heating, cold to take out again
No.1 thermometer A1, No.1 pressure gauge B1 and No.1 flowmeter C1 are provided on steam pipe 23, the feedwater outlet of First Heat Exchanger 9 is set
Ten No. six thermometer A16 are equipped with, the feed-water inlet of First Heat Exchanger 9 is provided with No. two thermometer A2 and No. two flowmeter C2, the
The feedwater outlet of two heat exchangers 10 is provided with ten No. five thermometer A15, and the feed-water inlet of the second heat exchanger 10 is provided with No. four temperature
Table A 4 and No. three flowmeter C3 are spent, No. five pressure gauge B5, No. ten thermometer A10 and No. six flows are provided on extraction steam for factories pipe 21
Table C6, the heat source import of the 3rd heat exchanger 11 are provided with No. seven flowmeter C7, and the feedwater outlet of the 3rd heat exchanger 11 is equipped with ten
No. four thermometer A14, the feed-water inlet of the 3rd heat exchanger 11 are equipped with No. eight flowmeter C8 and ride on Bus No. 11 thermometer A11, and the tenth
Ten No. two thermometer A12 are provided between six valves 46 and header vapor 26, No. five thermometers are provided on middle row's extraction steam pipe 22
A5, No. two pressure gauge B2 and No. four flowmeter C4, the high-pressure inlet of pressure matcher 12 are provided with No. three thermometer A3, pressure
The low pressure inlet of orchestration 12 is provided with No. six thermometer A6, and the outlet of pressure matcher 12 is provided with No. seven thermometer A7 and No. three
Pressure gauge B3, the steam (vapor) outlet of temperature-decreased pressure reducer 15 are provided with No. nine thermometer A9 and No. four pressure gauge B4, the 23rd valve
The steaming of No. eight thermometer A8 and No. five flowmeter C5, h grade bleeder heaters 6 is provided between 53 and the feedwater outlet of oxygen-eliminating device 13
Vapor inlet is connected with ten No. nine thermometer A19 and the steam inlet of No. nine pressure gauge B9, j grade bleeder heaters 8 is connected with 18
The steam inlet of number thermometer A18 and No. eight pressure gauge B8, k grade bleeder heaters 7 is connected with ten No. seven thermometer A17 and No. seven
Pressure gauge B7, the steam-turbine outlet of rotating barrier (5) are provided with ten No. three thermometer A13, No. six pressure gauge B6 and No. nine
Flowmeter C9.
The registration of No.1 thermometer A1 is TA1, represent successively, until the registration of ten No. nine thermometer A19 is TA19。
The registration of No.1 pressure gauge B1 is PB1, represent successively, until the registration of No. nine pressure gauge B9 is PB9。
The registration of No.1 flowmeter C1 is FC1, represent successively, until the registration of No. nine flowmeter C9 is FC9。
Its configuration constraint condition is as follows：
The pressure of industrial steam supply demand is Pg, the temperature of industrial steam supply demand is Tg；Under different unit operating modes, steam turbine is low
The exhaust steam pressure of cylinder pressure 4 is Pwi, the exhaust temperature of turbine low pressure cylinder 4 is Twi, Steam Turbine Through IP Admission 3 without spin partition plate 5 when work
The steam pressure of industry steam extraction is Pci, Steam Turbine Through IP Admission 3 without spin partition plate 5 when extraction steam for factories vapor (steam) temperature Tci, cold steam again
Pressure be PB1, the temperature of cold steam again is TA1, PB1And TA1It is measured by No.1 pressure gauge B1 and No.1 thermometer A1；
1) heat supply outward of extraction steam for factories pipe 21 is passed through：Work as Pci＜ PgWhen, by the aperture for adjusting rotating barrier 5 so that five
The numerical value P of number pressure gauge B5B5Meet PB5≥Pg, at this time correlate meter numerical value be：No. six pressure gauge B6 are PB6, No. eight pressure gauges
B8 is PB8, No. ten thermometer A10 are TA10, ten No. two thermometer A12 are TA12, ten No. three thermometer A13 are TA13, ten No. eight temperature
Degree Table A 18 is TA18, No. six flowmeter C6 are FC6, No. seven flowmeter C7 are FC7, No. nine flowmeter C9 are FC9；Meanwhile utilize
Three heat exchangers 11 heat feedwater, and the meter parameter to feed water at this time is：Ride on Bus No. 11 thermometer A11 is TA11, ten No. four temperature
Table A 14 is TA14, No. eight flowmeter C8 are FC8；
It is using the acting capacity loss constraint function of the progress industrial heating of rotating barrier 5 at this time：
Q11=FC8×CP×(TA14-TA11)
Wqx1=FC6×(H(A10,B5)-Hwi)+FC9×(Hci-H(A13,B6))-F11×(H(A18,B8)-Hwi)
In formula：Q11, the heat for absorption of feeding water in the 3rd heat exchanger 11, KJ/h；FC, kg/h；CP, the specific heat capacity of feedwater, kJ/
(kg·℃)；F11, vapor (steam) temperature and steam pressure are respectively TA18And PB8Steam flow, kg/h；Vapor (steam) temperature and
Steam pressure is respectively TAAnd PBWhen corresponding hydrophobic enthalpy, KJ/kg；H(A,B), vapor (steam) temperature and steam pressure are respectively TAAnd PB
When corresponding enthalpy, KJ/kg；Wqx1, acting capacity loss amount during 5 heat supply of rotating barrier, KJ/h；HX, vapor (steam) temperature and steam
Pressure is respectively TXAnd PXWhen corresponding enthalpy, KJ/kg.
TAFor TA1、TA2、……TA19In a numerical value, PBFor PB1、PB2……PB9In a numerical value, FCFor FC1、
FC2……FC9In a numerical value.
It is using the irreversible loss constraint function of the progress industrial heating of rotating barrier 5 at this time：
Wex1=FC6×(E(A10,B5)-E(A12,B5))+FC9×(Eci-E(A13,B6))-FC8×(EA14-EA11)
In formula：Wex1, irreversible loss amount during 5 heat supply of rotating barrier, KJ/h；E(A,B), vapor (steam) temperature and steam pressure divide
It Wei not TAAnd PBWhen corresponding ratioKJ/kg；EX, vapor (steam) temperature and steam pressure are respectively TXAnd PXWhen corresponding ratioKJ/
kg；EA, feed temperature TAWhen corresponding ratioKJ/kg；FC, fluid flow when flowmeter is C, kg/h；
2) when by the heat supply outward of pressure matcher 12, Pci＜ Pg, high steam is cold steam extraction again at this time, and low-pressure steam is
Steam Turbine Through IP Admission steam discharge by the matching of high steam and low-pressure steam, forms required industrial steam, related at this time to steam
The instrument numerical value of vapour is：No.1 pressure gauge B1 is PB1, No. two pressure gauge B2 are PB2, No. three pressure gauge B3 are PB3, No. seven pressure gauges
B7 is PB7, No. nine pressure gauge B9 are PB9, No.1 thermometer A1 is TA1, No. three thermometer A3 are TA3, No. five thermometer A5 are TA5,
No. six thermometer A6 are TA6, No. seven thermometer A7 are TA7, ten No. seven thermometer A17 are TA17, ten No. nine thermometer A19 are TA19,
No.1 flowmeter C1 is FC1, No. four flowmeter C4 are FC4；Using 9 and second heat exchanger 10 of First Heat Exchanger successively to feed water into
Row heating, the meter parameter to feed water at this time are：No. two thermometer A2 are TA2, No. four thermometer A4 are TA4, ten No. five thermometers
A15 is TA15, ten No. six thermometer A16 are TA16, No. two flowmeter C2 are FC2, No. three flowmeter C3 are FC3；
It is using the acting capacity loss constraint function of the progress industrial heating of pressure matcher 12 at this time：
Q9=FC2×CP×(TA16-TA2)
Q10=FC3×CP×(TA15-TA3)
Wqx2=FC1×(H(A1,B1)-Hwi)+FC2×(H(A2,B2)-Hwi)-F9×(H(A19,B9)-Hwi)-F10×(H(A17,B7)-
Hwi)
In formula：Q9, the heat for absorption of feeding water in First Heat Exchanger 9, KJ/h；F9, vapor (steam) temperature and steam pressure are respectively
TA19And PB9Steam flow, kg/h；Q10, the heat for absorption of feeding water in the second heat exchanger 10, KJ/h；F10, vapor (steam) temperature and steaming
Steam pressure is respectively TA17And PB7Steam flow, kg/h；Wqx2, acting capacity loss amount during 12 heat supply of pressure matcher, KJ/
h；
It is using the irreversible loss constraint function of the progress industrial heating of pressure matcher 12 at this time：
Wex2=(FC1×E(A1,B1)+FC4×E(A5,B2)-(FC1+FC4)×E(A7,B3))-FC2×(EA16-EA2)-FC3×(EA15-
EA3)
In formula：Wex2, irreversible loss amount during 12 heat supply of pressure matcher, KJ/h；
The mass ratio of induced-to-inducing air function of pressure matcher 12 is at this time：
In formula：U, the mass ratio of induced-to-inducing air function of pressure matcher；
3) when by the heat supply outward of temperature-decreased pressure reducer 15, Pci＜ Pg, steam extraction again cold at this time is as high steam, after deoxygenation
Feedwater forms required industrial steam as desuperheating water, high steam after pressure and temperature reducing, at this time the numerical value of associated steam
For：No.1 pressure gauge B1 is PB1, No. four pressure gauge B4 are PB4, No.1 thermometer A1 is TA1, No. nine thermometer A9 are TA9, No.1
Flowmeter C1 is FC1；The meter parameter to feed water at this time is：No. eight thermometer A8 are TA8, No. five flowmeter C5 are FC5；
It is using the acting capacity loss constraint function of the progress industrial heating of temperature-decreased pressure reducer 15 at this time：
Wqx3=FC1×(H(A1,B1)-Hwi)
In formula：Wqx3, acting capacity loss amount during 15 heat supply of temperature-decreased pressure reducer, KJ/h；
It is using the irreversible loss constraint function of the progress industrial heating of temperature-decreased pressure reducer 15 at this time：
Wex3=(FC1×E(A1,B1)+FC5×EA8-(FC1+FC5)×E(A9,B4))
In formula：Wex3, irreversible loss amount during 15 heat supply of temperature-decreased pressure reducer, KJ/h.
When unit generation load is at full capacity, meet Pci≥Pg, 5 aperture of rotating barrier is 100% at this time, utilizes industry
21 external heat supply of extraction steam pipe；
When unit generation load continuously decreases, if still meeting Pci≥Pg, 5 aperture of rotating barrier is 100% at this time, is continued
Utilize the 21 external heat supply of extraction steam for factories pipe；If there is Pci＜ Pg, judge that the foundation of industrial steam supplying method is as follows at this time：
Work as satisfaction：When, Selection utilization adjusts the aperture of rotating barrier 5, and industry needed for formation is steamed
Vapour so that PB5≥Pg, and utilize the 21 external heat supply of extraction steam for factories pipe；
Work as satisfaction：When, Selection utilization adjusts the aperture of rotating barrier 5, and industry needed for formation is steamed
Vapour so that PB5≥Pg, and utilize the 21 external heat supply of extraction steam for factories pipe；
Work as satisfaction：When, Selection utilization pressure matcher 12 passes through high steam and low-pressure steam
Matching, industrial steam needed for formation so that PB3≥Pg；
Work as satisfaction：When, Selection utilization adjusts the aperture of rotating barrier 5, and industry needed for formation is steamed
Vapour so that PB5≥Pg, and utilize the 21 external heat supply of extraction steam for factories pipe；
Work as satisfaction：When, Selection utilization temperature-decreased pressure reducer 15 is subtracted by high steam by desuperheat
After pressure, industrial steam needed for formation so that PB4≥Pg；
Work as satisfaction：When, Selection utilization pressure matcher 12 passes through high steam and low-pressure steam
Matching, industrial steam needed for formation so that PB3≥Pg；
Work as satisfaction：When, Selection utilization temperature-decreased pressure reducer 15 is subtracted by high steam by desuperheat
After pressure, industrial steam needed for formation so that PB4≥Pg。
When rotating barrier 5 is selected to carry out industrial heating, the aperture of rotating barrier 5 is adjusted so that No. five pressure gauge B5's
Numerical value PB5Meet PB5≥Pg；The aperture of the 15th valve 45, the 16th valve 46 and the 14th valve 44 is adjusted simultaneously, passes through tune
Section enters the steam flow of the 3rd heat exchanger 11 so that the numerical value T of ten No. two thermometer A12A12Meet TA12≥Tg, so as to ensure
The steam parameter confessed meets the needs of steam user 16；
When pressure matcher 12 is selected to carry out industrial heating, open and adjust the second valve 32, the 7th valve the 37, the 8th
Valve 38, cold steam again are introduced into First Heat Exchanger 9 and carry out heat exchange cooling, open and adjust the first valve 31, the 13rd valve
43, Steam Turbine Through IP Admission steam discharge is introduced into the second heat exchanger 10 and carries out heat exchange cooling, while adjusts the 26th valve 56 and the
27 valves 57 so that the numerical value T of No. three thermometer A3A3With the numerical value T of No. six thermometer A6A6It can ensure mass ratio of induced-to-inducing airFor optimum value, cold steam again is matched with Steam Turbine Through IP Admission steam discharge in pressure matcher 12, made
The numerical value of No. three pressure gauge B3 and the numerical value of No. seven thermometer A7 meet P respectivelyB3≥Pg、TA7≥Tg, so as to ensure what is confessed
Steam parameter meets the needs of steam user 16；
When temperature-decreased pressure reducer 15 is selected to carry out industrial heating, open and adjust the second valve 32, the 22nd valve 52
With the 23rd valve 53, the cold steam flow again and attemperation water flow into temperature-decreased pressure reducer 15 are adjusted, forms middle pressure steam
It confesses so that the numerical value of No. four pressure gauge B4 and the numerical value of No. nine thermometer A9 meet P respectivelyB4≥Pg、TA9≥Tg, so as to ensure
The steam parameter confessed meets the needs of steam user 16.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and principles according to described in the utility model patent concept are done, are wrapped
It includes in the protection domain of the utility model patent.Those skilled in the art of the present invention can be to described
Specific embodiment does various modifications or additions or substitutes in a similar way, without departing from the knot of the utility model
Structure surmounts scope defined in the claims, all should belong to the protection range of the utility model.
Claims (4)
1. a kind of energy conserving system for steam power plant's multi-heat source industrial heating, it is characterised in that：Including boiler（1）, steam turbine it is high
Cylinder pressure（2）, Steam Turbine Through IP Admission（3）, turbine low pressure cylinder（4）, rotating barrier（5）, h grades of bleeder heaters（6）, k grades of backheats
Heater（7）, j grades of bleeder heaters（8）, First Heat Exchanger（9）, the second heat exchanger（10）, the 3rd heat exchanger（11）, pressure
Orchestration（12）, oxygen-eliminating device（13）, feed pump（14）, temperature-decreased pressure reducer（15）With steam user（16）；
Boiler（1）, steam turbine high-pressure cylinder（2）, Steam Turbine Through IP Admission（3）, turbine low pressure cylinder（4）It is sequentially connected, steam turbine is high
Cylinder pressure（2）Steam drain and cold extraction steam pipe again（23）Connection, cold extraction steam pipe again（23）On be provided with the second valve（32）, rotate every
Plate（5）Pass through extraction steam for factories pipe（21）With the 3rd heat exchanger（11）Connection, the 3rd heat exchanger（11）It is provided with extraction steam for factories bypass
（27）, and in the 3rd heat exchanger（11）Heat source import, thermal source outlet and extraction steam for factories bypass（27）On be sequentially installed with the tenth
Five valves（45）, the 16th valve（46）, the 14th valve（44）, the 3rd heat exchanger（11）Thermal source outlet pass through header vapor
（26）With steam user（16）Connection；
Steam Turbine Through IP Admission（3）Steam drain pass through middle row's extraction steam pipe（22）With the second heat exchanger（10）Connection, and changed second
Hot device（10）Heat source import and thermal source outlet on be sequentially installed with the first valve（31）With the 13rd valve（43）, the second heat exchange
Device（10）Thermal source outlet and pressure matcher（12）Low pressure inlet connection；Cold extraction steam pipe again（23）Pass through the first cold branch pipe again
（24）With First Heat Exchanger（9）Connection, and in First Heat Exchanger（9）Heat source import and thermal source outlet on be sequentially installed with the 7th
Valve（37）With the 8th valve（38）, First Heat Exchanger（9）Thermal source outlet and pressure matcher（12）High-pressure inlet connection；
Pressure matcher（12）Outlet pass through header vapor（26）With steam user（16）Connection, and in pressure matcher（12）Go out
The 21st valve is installed on mouthful（51）；
Cold extraction steam pipe again（23）Pass through the second cold branch pipe again（25）With temperature-decreased pressure reducer（15）Connection, and in temperature-decreased pressure reducer（15）
Steam inlet and steam (vapor) outlet on be sequentially installed with the 22nd valve（52）With the 25th valve（55）, temperature-decreased pressure reducer
（15）Outlet pass through header vapor（26）With steam user（16）Connection；
First Heat Exchanger（9）With h grades of bleeder heaters（6）It is connected in parallel, and in First Heat Exchanger（9）Feed-water inlet, first
Heat exchanger（9）Feedwater outlet, h grades of bleeder heaters（6）Feed-water inlet and h grades of bleeder heaters（6）Feedwater outlet on
It is sequentially installed with the 6th valve（36）, the 5th valve（35）, the 4th valve（34）With the 3rd valve（33）；
Second heat exchanger（10）With k grades of bleeder heaters（7）It is connected in parallel, and in the second heat exchanger（10）Feed-water inlet,
Two heat exchangers（10）Feedwater outlet, k grades of bleeder heaters（7）Feed-water inlet and k grades of bleeder heaters（7）Feedwater outlet
On be sequentially installed with the 12nd valve（42）, the 11st valve（41）, the tenth valve（40）With the 9th valve（39）；
3rd heat exchanger（11）With j grades of bleeder heaters（8）It is connected in parallel, and in the 3rd heat exchanger（11）Feed-water inlet,
Three heat exchangers（11）Feedwater outlet, j grades of bleeder heaters（8）Feed-water inlet and j grades of bleeder heaters（8）Feedwater outlet
On be sequentially installed with the 20th valve（50）, the 19th valve（49）, the 18th valve（48）With the 17th valve（47）.
2. the energy conserving system according to claim 1 for steam power plant's multi-heat source industrial heating, it is characterised in that：Described
One heat exchanger（9）With the second heat exchanger（10）It is respectively arranged with high steam bypass（28）It is bypassed with low-pressure steam（29）, and
High steam bypasses（28）It is upper that 26th valve is housed（56）, low-pressure steam bypass（29）It is upper that 27th valve is housed
（57）.
3. the energy conserving system according to claim 1 or 2 for steam power plant's multi-heat source industrial heating, it is characterised in that：Institute
State temperature-decreased pressure reducer（15）Desuperheat water inlet and oxygen-eliminating device（13）Feedwater outlet connection, and in temperature-decreased pressure reducer（15）Subtract
Warm water inlet tube and oxygen-eliminating device（13）Feedwater outlet pipe on be respectively provided with the 23rd valve（53）With the 24th valve
（54）.
4. the energy conserving system according to claim 3 for steam power plant's multi-heat source industrial heating, it is characterised in that：The h
Grade bleeder heater（6）, j grades of bleeder heaters（8）, feed pump（14）, oxygen-eliminating device（13）With k grades of bleeder heaters（7）By suitable
Sequence is sequentially connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721160129.4U CN207420646U (en) | 2017-09-12 | 2017-09-12 | For the energy conserving system of steam power plant's multi-heat source industrial heating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605553A (en) * | 2017-09-12 | 2018-01-19 | 华电电力科学研究院 | Energy conserving system and its intelligent control method for steam power plant's multi-heat source industrial heating |
| CN109869204A (en) * | 2019-02-02 | 2019-06-11 | 华电电力科学研究院有限公司 | A kind of heat supply for Combined cycle gas-steam turbine unit and power peak regulation coupled system and its operation method |
-
2017
- 2017-09-12 CN CN201721160129.4U patent/CN207420646U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605553A (en) * | 2017-09-12 | 2018-01-19 | 华电电力科学研究院 | Energy conserving system and its intelligent control method for steam power plant's multi-heat source industrial heating |
| CN107605553B (en) * | 2017-09-12 | 2023-07-04 | 华电电力科学研究院有限公司 | Energy-saving system for multi-heat source industrial heat supply of thermal power plant and intelligent control method thereof |
| CN109869204A (en) * | 2019-02-02 | 2019-06-11 | 华电电力科学研究院有限公司 | A kind of heat supply for Combined cycle gas-steam turbine unit and power peak regulation coupled system and its operation method |
| CN109869204B (en) * | 2019-02-02 | 2023-09-15 | 华电电力科学研究院有限公司 | Heat supply and power peak regulation coupling system for gas-steam combined cycle unit and operation method thereof |
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