CN109099499A - A kind of the coal-burning power plant's high back pressure series connection extraction for heat supply system and its working method of the control of thermic load peak valley - Google Patents
A kind of the coal-burning power plant's high back pressure series connection extraction for heat supply system and its working method of the control of thermic load peak valley Download PDFInfo
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- CN109099499A CN109099499A CN201810984137.3A CN201810984137A CN109099499A CN 109099499 A CN109099499 A CN 109099499A CN 201810984137 A CN201810984137 A CN 201810984137A CN 109099499 A CN109099499 A CN 109099499A
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- heat
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- supply network
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- heat exchanger
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
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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]
-
- 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
Abstract
The present invention relates to the coal-burning power plant's high back pressure series connection extraction for heat supply systems and its working method of a kind of control of thermic load peak valley.For the heating demand for meeting heat supply network user, cogeneration of heat and power enterprise can carry out heat supply according to heat supply network maximum heating load, and for thermal energy and parameter kept stable, cause the waste of the energy.Steam extraction heat supply unit is connect with first-degree heating network heat exchanger in the present invention, high back pressure thermal power plant unit low pressure (LP) cylinder is connect with condenser, the primary net water supply flow table of condenser, circulation pump of heat-supply network, heat supply network and first-degree heating network heat exchanger are sequentially connected, the primary net supply water temperature table of first-degree heating network heat exchanger, heat supply network and secondary heat networks heat exchanger are sequentially connected, secondary heat networks heat exchanger is connect with heat supply network user, and the primary net return water temperature table of secondary heat networks heat exchanger, heat supply network and condenser are sequentially connected.The present invention can solve cogeneration units heat supply during because the problem of energy dissipation, improving the economic benefit of coal-burning power plant's heating enterprise and the economy of thermal power plant unit caused by excessive heat supply.
Description
Technical field
The present invention relates to coal-burning power plant's field of energy-saving technology, more particularly to the cogeneration of heat and power machine of high back pressure series connection steam extraction
Group.
Background technique
Resident's heat supply is as people's livelihood engineering, and for the heating demand for meeting heat supply network user, cogeneration of heat and power enterprise can be according to heat supply network
Maximum heating load carries out heat supply, and externally for thermal energy and parameter kept stable.And in 24 hours one day, with sunlight
According to variation, before the heat demand of each user of heat supply network also changing, for example fine day illumination preferable noon and daily early morning get up
Afterwards, resident's room temperature difference is more, and heat supply network thermic load can all have peak valley variation daily；Heat supply first latter stage and heat supply mid-term,
With the natural trend of weather, environment temperature difference is also very big, and in the entire Winter heat supply phase, there is also peak valleys for heat supply network thermic load
Variation.Heat supply network secondary network caloric receptivity can reduce at this time, and the primary net heat supply heat of heat supply network is almost unchanged, and primary net return water temperature is just
It can increase, cogeneration of heat and power enterprise externally sells heat and will reduce, economic benefit decline；Primary net return water temperature increases, and also can
Cause the back pressure of high back pressure thermal power plant unit low pressure (LP) cylinder to increase, reduces the acting ability of steam turbine.Using the control of thermic load peak valley
When the external heat supply of mode, the energy dissipation of thermal power plant unit can be both reduced, the economic benefit of thermal power plant unit is improved, can also be optimized
The operating condition of high back pressure thermal power plant unit improves the economy during the operation of high back pressure thermal power plant unit.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of with the change of heat supply network thermic load
The heating system and its working method changed and changed, with during solving cogeneration units heat supply because of energy wave caused by excessive heat supply
The problem of taking improve the economic benefit of coal-burning power plant's heating enterprise and the economy of thermal power plant unit.
Technical solution used by the present invention solves the above problems is: a kind of coal-burning power plant's highback of thermic load peak valley control
Pressure series connection extraction for heat supply system, which is characterized in that including steam extraction heat supply unit, high back pressure thermal power plant unit low pressure (LP) cylinder, condenser, heat
Net water circulating pump, first-degree heating network heat exchanger, secondary heat networks heat exchanger, heat supply network user, the primary net return water temperature table of heat supply network, heat supply network one
Secondary net supply water temperature table and the primary net water supply flow table of heat supply network；The steam extraction heat supply unit is connect with first-degree heating network heat exchanger, institute
It states high back pressure thermal power plant unit low pressure (LP) cylinder to connect with condenser, the condenser is connect with first-degree heating network heat exchanger, the condenser
Circulation pump of heat-supply network and the primary net water supply flow table of heat supply network, the first-degree heating network heat exchange are provided between first-degree heating network heat exchanger
Device is connect with secondary heat networks heat exchanger, and the primary net of heat supply network is provided between the first-degree heating network heat exchanger and secondary heat networks heat exchanger
Supply water temperature table, the secondary heat networks heat exchanger are connect with heat supply network user, and the secondary heat networks heat exchanger is also connect with condenser,
The primary net return water temperature table of heat supply network is provided between the secondary heat networks heat exchanger and condenser.
Furthermore, the circulation pump of heat-supply network adjusts the flow of heat supply network recirculated water by the revolving speed of pump.
Furthermore, the first-degree heating network heat exchanger is steam water heat exchanger, and the secondary heat networks heat exchanger is also water-
Water- to-water heat exchanger.
Furthermore, the quantity of the secondary heat networks heat exchanger is determined by the quantity when geothermal mesh secondary network heat exchange station.
Furthermore, the primary net supply water temperature table of the heat supply network is thermocouple mechanical temperature table or electric thermo-couple temperature pick-up
Device.
Furthermore, the primary net water supply flow table of the heat supply network is differential pressure flowmeter or ultrasonic flowmeter.
The course of work is as follows: the steam exhaust after the acting of high back pressure thermal power plant unit low pressure (LP) cylinder is directly discharged into condenser, and heat supply network is primary
The recirculated water of net is heated by the steam exhaust in condenser, is boosted through circulation pump of heat-supply network, into first-degree heating network heat exchanger, extraction for heat supply
Unit extraction section high temperature and high pressure steam enters first-degree heating network heat exchanger, carries out reheating, heat to the primary net recirculated water of heat supply network
After the heating of first-degree heating network heat exchanger, the primary net recirculated water of heat supply network carries out heat supply network user through secondary heat networks heat exchanger net secondary network
Heat supply；The demand of heat supply network user is exactly heat supply network thermic load, the primary net supply water temperature table of heat supply network and the primary net water supply flow table of heat supply network
Monitor the external heating parameter of heating system, the return water ginseng after the primary net return water temperature table monitoring external heat supply of heating system of heat supply network
Number.
When environment temperature raising or illumination condition improve, the reduction of heat supply network user's heat demand leads to the reduction of heat supply network thermic load
When, heat supply network secondary network confession heat flow decline, secondary heat networks heat exchanger heat exchange amount is reduced, and the primary net return water temperature of heat supply network increases, and is
The primary net return water temperature of control heat supply network, which increases, influences high back pressure thermal power plant unit back pressure of condenser and the external of cogeneration of heat and power enterprise is sold
Heat reduces steam extraction heat supply unit extraction flow or circulation pump of heat-supply network flow, makes the reduction of heat supply network heat exchanger heat exchange amount, heat supply network
Primary net heat supply heat reduces, and the primary net return water temperature of heat supply network is then down to state when heat supply network thermic load increases again.
Compared with prior art, the present invention having the following advantages that and effect:
1, it can be supplied according to the variation of the heat demand of the variation and each user of heat supply network of solar irradiation in 24 hours one day
The adjustment of heat reduces the energy dissipation of thermal power plant unit, improves the economic benefit of thermal power plant unit.
2, can be according to during heat supply, the variation of environment temperature caused by seasonal variations and the heat supply of each user of heat supply network
The variation of demand carries out the adjustment of heating load, reduces the energy dissipation of thermal power plant unit, improves the economic benefit of thermal power plant unit.
3, the operating condition of high back pressure thermal power plant unit can be optimized, improve the economy during the operation of high back pressure thermal power plant unit
Property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
In figure: 1- steam extraction heat supply unit, 2- high back pressure thermal power plant unit low pressure (LP) cylinder, 3- condenser, 4- circulation pump of heat-supply network, 5-
First-degree heating network heat exchanger, 6- secondary heat networks heat exchanger, 7- heat supply network user, the primary net return water temperature table of 8- heat supply network, 9- heat supply network are primary
The primary net water supply flow table of net supply water temperature table, 10- heat supply network.
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, coal-burning power plant's high back pressure series connection extraction for heat supply system that the thermic load peak valley in the present embodiment controls, packet
Include steam extraction heat supply unit 1, high back pressure thermal power plant unit low pressure (LP) cylinder 2, condenser 3, circulation pump of heat-supply network 4, first-degree heating network heat exchanger 5,
Secondary heat networks heat exchanger 6, heat supply network user 7, the primary net return water temperature table 8 of heat supply network, the primary net supply water temperature table 9 of heat supply network and heat supply network one
Secondary net water supply flow table 10.
Steam extraction heat supply unit 1 is connect with first-degree heating network heat exchanger 5, and high back pressure thermal power plant unit low pressure (LP) cylinder 2 and condenser 3 connect
It connects, condenser 3 is connect with first-degree heating network heat exchanger 5, and heat supply network recirculated water is provided between condenser 3 and first-degree heating network heat exchanger 5
Pump 4 and the primary net water supply flow table 10 of heat supply network, first-degree heating network heat exchanger 5 are connect with secondary heat networks heat exchanger 6, first-degree heating network heat exchange
The primary net supply water temperature table 9 of heat supply network, secondary heat networks heat exchanger 6 and heat supply network user are provided between device 5 and secondary heat networks heat exchanger 6
7 connections, secondary heat networks heat exchanger 6 are also connect with condenser 3, and heat supply network one is provided between secondary heat networks heat exchanger 6 and condenser 3
Secondary net return water temperature table 8.
In the present embodiment, condenser 3 is mounted on the lower part of high back pressure thermal power plant unit low pressure (LP) cylinder 2, and circulation pump of heat-supply network 4 connects
The water side of condenser 3 and first-degree heating network heater 5, first-degree heating network heater 5 are vapour-water heater, and steam extraction heat supply unit 1 passes through
Extraction line connects the vapour side of first-degree heating network heater 5, and secondary heat networks heat exchanger 6 is water-water heat exchanger, Netcom's mistake of heat supply network
Secondary heat networks heat exchanger 6 heats heat supply network secondary network, and heat supply network secondary network carries out heat supply, the primary net of heat supply network to heat supply network user 7
Return water temperature table 8 is mounted on the primary net water return pipeline of heat supply network, and the primary net supply water temperature table 9 of heat supply network and the primary net of heat supply network are for water flow
Scale 10 is mounted on the primary net water supply line of heat supply network, and the primary net supply water temperature table 9 of heat supply network is mounted on heat supply network first-class heat exchanger and goes out
Mouthful.
In the present embodiment, the primary net return water temperature table 8 of heat supply network and the primary net supply water temperature table 9 of heat supply network are the mechanical temperature of thermocouple
Table or thermocouple temperature transmitter are spent, the primary net water supply flow table 10 of heat supply network is differential pressure flowmeter or ultrasonic flowmeter.
In the present embodiment, 6 quantity of secondary heat networks heat exchanger is determined according to the quantity when geothermal mesh secondary network heat exchange station.
In the present embodiment, in winter for during the hot season, high back pressure thermal power plant unit " electricity determining by heat ", unit electric load is constant
When, the heat of 2 steam discharge of high back pressure thermal power plant unit low pressure (LP) cylinder is more stable, and the heat that heat supply network recirculated water is absorbed from condenser 3 also compares
It is more stable, when the variation of heat supply network thermic load, by adjusting the power output of heat supply network recirculating water pump 4 or the pumping of steam extraction heat supply unit 1
Vapour amount realizes the variation of external heating load.
In the present embodiment, there are mainly two types of situations for the peak valley variation of thermic load, first is that seasonal during Winter heat supply season
Peak valley variation, second is that the peak valley in 24 hours one day under different illumination conditions changes.
In the present embodiment, coal-burning power plant's high back pressure series connection extraction for heat supply method of adjustment of thermic load peak valley control, step is such as
Under:
In winter during the external heat supply of heat supply, the operation of high back pressure thermal power plant unit is weary after the acting of high back pressure thermal power plant unit low pressure (LP) cylinder 2
Vapour enters condenser 3, and first-degree heating network recirculated water passes through condenser 3, absorbs the heat of steam exhaust, after the boosting of circulation pump of heat-supply network 4
Into first-degree heating network heat exchanger 5, followed by the level-one that the high-temperature steam extracted out from steam extraction heat supply unit 1 is heated into high temperature again
Ring water, the primary cycle water of high temperature become after transferring heat to secondary heat supply network recirculated water by each secondary heat networks heat exchanger 6
The first-degree heating network recirculated water of low temperature, secondary heat networks recirculated water carry out heat supply to each heat supply network user 7, and low temperature first-degree heating network recirculated water returns
Circulating-heating is carried out to condenser 3, for the economy for guaranteeing high back pressure series connection extraction for heat supply system, controls the primary net return water of heat supply network
The instruction of thermometer 8 is between 48 DEG C to 50 DEG C.
Seasonal peaks and troughs variation.Preliminary heating period, environment temperature is relatively high, and heat supply network thermic load is in the low ebb water for the hot season
It is flat, high back pressure connect the heat supply of extraction for heat supply system external when, the primary net supply water temperature table 9 of heat supply network and the primary net water supply flow of heat supply network
The numerical value of table 10 is not relatively high.With the variation in season, environment temperature is gradually decreased, and heat supply network thermic load increases, heat supply network user's 7
Caloric receptivity increases, and the caloric receptivity of secondary heat networks heat exchanger 6 just will increase, and the primary instruction of net return water temperature table 8 decline of heat supply network is lower than
At 48 DEG C, illustrate high back pressure series connection extraction for heat supply system external heating load lower than heat supply network thermal load demands, heat supply network thermic load is by low
Paddy starts to change to peak, should increase the revolving speed of circulation pump of heat-supply network 4, and the instruction of the primary net water supply flow table 10 of heat supply network increases,
The primary net circulating water flow of heat supply network increases, and external heating load increases to meet the needs of heat supply network thermic load, the primary net return water of heat supply network
The instruction of thermometer 8 rises between 48 DEG C to 50 DEG C；Or increase the steam extraction amount of steam extraction heat supply unit 1, first-degree heating network heat exchanger 5
Heat exchange amount increase, heat supply network primary net supply water temperature table 9 instruction increases, and the primary net circulating water temperature of heat supply network increases, external heat supply
Amount increases to meet the needs of heat supply network thermic load, and the instruction of the primary net return water temperature table 8 of heat supply network rises between 48 DEG C to 50 DEG C.
Peak valley variation under different illumination in one day.Under normal circumstances, 5 points to 8 points or so of every morning in winter, get up descendant
Body blood circulation is relatively slow, and 7 room temperature of heat supply network user is relatively low, and heat supply network thermic load is in daily peak water at this time
Flat, the heating load of high back pressure series connection extraction for heat supply system is maximum.With the increase of Intensity of the sunlight, environment temperature is increased, especially
It is 12 noon to 14 points or so, and illumination condition is best, and 7 room temperature highest of heat supply network user, heat supply network thermic load is every at this time
It trough level, if the instruction of the primary net supply water temperature table 9 of heat supply network and the primary net water supply flow table 10 of heat supply network remains unchanged,
The instruction of the primary net return water temperature table 8 of heat supply network will increase, and when more than 50 DEG C, illustrate high back pressure series connection extraction for heat supply system external
Heating load is higher than heat supply network thermal load demands, and the economical effect of heat-supply of cogeneration units will decline, and should reduce steam extraction heat supply unit 1
The heat exchange amount of steam extraction amount, first-degree heating network heat exchanger 5 reduces, and the primary instruction of net supply water temperature table 9 of heat supply network reduces, and the primary net of heat supply network follows
Ring coolant-temperature gage reduces, and external heating load is reduced to meet the needs of heat supply network thermic load, the instruction of the primary net return water temperature table 8 of heat supply network
It is down between 48 DEG C to 50 DEG C.
In the present embodiment, when seasonal peaks and troughs changes, increase the steam extraction amount of steam extraction heat supply unit 1, under identical steam flow
Can reduce the generation load of steam extraction heat supply unit 1, reduce the economy of steam extraction heat supply unit 1, seasonal heating load from low ebb to
When peak changes, it should preferentially increase the primary net water supply flow of heat supply network, after the primary net water supply flow of heat supply network reaches design discharge, then
Increase the steam extraction amount of steam extraction heat supply unit 1.
In the present embodiment, when the thermic load peak valley under different illumination in one day changes, increase the primary net water supply flow of heat supply network, because
Heat supply network area of heat-supply service is larger, and lag time is longer when the primary instruction of net return water temperature table 8 of heat supply network changes, and can not constantly react highback
Whether pressure series connection extraction for heat supply system external heating load and heat supply network thermic load match, and 24 hours one day thermic loads are from peak to low ebb
When variation, therefore the steam extraction amount for reducing steam extraction heat supply unit 1 is used, directly passes through the primary net supply water temperature table 9 of heat supply network and heat supply network one
The instruction of secondary net return water temperature table 8, judges whether high back pressure series connection extraction for heat supply system external heating load meets heat supply network thermic load
Demand.
By above-mentioned elaboration, those skilled in the art can implement.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (7)
- The extraction for heat supply system 1. a kind of coal-burning power plant's high back pressure of thermic load peak valley control is connected, which is characterized in that including steam extraction Thermal power plant unit, high back pressure thermal power plant unit low pressure (LP) cylinder, condenser, circulation pump of heat-supply network, first-degree heating network heat exchanger, secondary heat networks heat exchange Device, heat supply network user, the primary net return water temperature table of heat supply network, the primary net supply water temperature table of heat supply network and the primary net water supply flow table of heat supply network； The steam extraction heat supply unit is connect with first-degree heating network heat exchanger, and the high back pressure thermal power plant unit low pressure (LP) cylinder is connect with condenser, institute It states condenser to connect with first-degree heating network heat exchanger, is provided with circulation pump of heat-supply network between the condenser and first-degree heating network heat exchanger With the primary net water supply flow table of heat supply network, the first-degree heating network heat exchanger is connect with secondary heat networks heat exchanger, and the first-degree heating network changes The primary net supply water temperature table of heat supply network is provided between hot device and secondary heat networks heat exchanger, the secondary heat networks heat exchanger and heat supply network are used Family connection, the secondary heat networks heat exchanger also connect with condenser, are provided between the secondary heat networks heat exchanger and condenser The primary net return water temperature table of heat supply network.
- The extraction for heat supply system 2. coal-burning power plant's high back pressure of thermic load peak valley control according to claim 1 is connected, it is special Sign is that the first-degree heating network heat exchanger is steam water heat exchanger, and the secondary heat networks heat exchanger is also water-water heat exchanger.
- The extraction for heat supply system 3. coal-burning power plant's high back pressure of thermic load peak valley control according to claim 1 is connected, it is special Sign is that the quantity of the secondary heat networks heat exchanger is determined by the quantity when geothermal mesh secondary network heat exchange station.
- The extraction for heat supply system 4. coal-burning power plant's high back pressure of thermic load peak valley control according to claim 1 is connected, it is special Sign is that the primary net supply water temperature table of heat supply network is thermocouple mechanical temperature table or thermocouple temperature transmitter.
- The extraction for heat supply system 5. coal-burning power plant's high back pressure of thermic load peak valley control according to claim 1 is connected, it is special Sign is that the primary net water supply flow table of heat supply network is differential pressure flowmeter or ultrasonic flowmeter.
- 6. a kind of coal-burning power plant's high back pressure string of the thermic load peak valley control as described in any one of claim 1-5 claim Join the working method of extraction for heat supply system, which is characterized in that the working method is as follows: the acting of high back pressure thermal power plant unit low pressure (LP) cylinder Steam exhaust afterwards is directly discharged into condenser, and the recirculated water that heat supply network is once netted is heated by the steam exhaust in condenser, through circulation pump of heat-supply network Boosting, into first-degree heating network heat exchanger, steam extraction heat supply unit extraction section high temperature and high pressure steam enters first-degree heating network heat exchanger, right The primary net recirculated water of heat supply network carries out reheating, and for heat supply network secondary network after the heating of first-degree heating network heat exchanger, heat supply network once nets circulation Water carries out heat supply to heat supply network user through secondary heat networks heat exchanger；The demand of heat supply network user is exactly heat supply network thermic load, the primary net of heat supply network Supply water temperature table and the primary net water supply flow table of heat supply network monitor the external heating parameter of heating system, the primary net return water temperature table of heat supply network Return water parameter after monitoring the external heat supply of heating system.
- 7. the work of coal-burning power plant's high back pressure series connection extraction for heat supply system of thermic load peak valley control according to claim 6 Method, which is characterized in that when environment temperature raising or illumination condition improve, the reduction of heat supply network user's heat demand causes heat supply network hot When load reduction, heat supply network secondary network confession heat flow decline, secondary heat networks heat exchanger heat exchange amount is reduced, the primary net return water temperature of heat supply network It increases, increasing for the primary net return water temperature of control heat supply network influences high back pressure thermal power plant unit back pressure of condenser and cogeneration of heat and power enterprise Heat is externally sold, steam extraction heat supply unit extraction flow or circulation pump of heat-supply network flow are reduced, drops heat supply network heat exchanger heat exchange amount Low, the primary net heat supply heat of heat supply network reduces, and the primary net return water temperature of heat supply network is then down to state when heat supply network thermic load increases again.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945268A (en) * | 2019-01-28 | 2019-06-28 | 太原理工大学 | A kind of heating system of Gas-steam Combined Cycle steam power plant |
| CN110220234A (en) * | 2019-03-11 | 2019-09-10 | 华电电力科学研究院有限公司 | A kind of heating system and its working method optimized based on heat supply network circulating water flow and the temperature difference |
| CN111425274A (en) * | 2020-04-16 | 2020-07-17 | 京能(赤峰)能源发展有限公司 | Combined heat and power generation system capable of meeting resident and industrial heat supply requirements during deep peak shaving |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672203A (en) * | 2009-10-15 | 2010-03-17 | 华北电力大学 | Adjusting method for heating steam of cogeneration system |
| CN203628786U (en) * | 2013-12-09 | 2014-06-04 | 山东泓奥电力科技有限公司 | High-backpressure heat supply serially connected two-stage heating system |
| CN105986849A (en) * | 2015-02-13 | 2016-10-05 | 中国电力工程顾问集团华北电力设计院有限公司 | Rear-mounted steam turbine system and method for middle steam pumping and heating |
| CN106765446A (en) * | 2016-12-27 | 2017-05-31 | 华北电力大学 | One kind is drawn gas combining heating system using cooling water heat Direct Air-Cooled high back pressure |
| CN206320832U (en) * | 2016-12-16 | 2017-07-11 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of heat pump and high back pressure condenser combining heating system |
| CN207064022U (en) * | 2017-02-23 | 2018-03-02 | 华西能源工程有限公司 | One kind becomes back pressure thermoelectricity connect product machine set system |
| CN207673389U (en) * | 2017-11-28 | 2018-07-31 | 华北电力大学 | A kind of efficient heating system of cogeneration units based on back pressure machine |
| CN208983450U (en) * | 2018-08-28 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of coal-burning power plant's high back pressure series connection extraction for heat supply system of thermic load peak valley control |
-
2018
- 2018-08-28 CN CN201810984137.3A patent/CN109099499A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672203A (en) * | 2009-10-15 | 2010-03-17 | 华北电力大学 | Adjusting method for heating steam of cogeneration system |
| CN203628786U (en) * | 2013-12-09 | 2014-06-04 | 山东泓奥电力科技有限公司 | High-backpressure heat supply serially connected two-stage heating system |
| CN105986849A (en) * | 2015-02-13 | 2016-10-05 | 中国电力工程顾问集团华北电力设计院有限公司 | Rear-mounted steam turbine system and method for middle steam pumping and heating |
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| CN106765446A (en) * | 2016-12-27 | 2017-05-31 | 华北电力大学 | One kind is drawn gas combining heating system using cooling water heat Direct Air-Cooled high back pressure |
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| CN207673389U (en) * | 2017-11-28 | 2018-07-31 | 华北电力大学 | A kind of efficient heating system of cogeneration units based on back pressure machine |
| CN208983450U (en) * | 2018-08-28 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of coal-burning power plant's high back pressure series connection extraction for heat supply system of thermic load peak valley control |
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| CN109945268A (en) * | 2019-01-28 | 2019-06-28 | 太原理工大学 | A kind of heating system of Gas-steam Combined Cycle steam power plant |
| CN109945268B (en) * | 2019-01-28 | 2020-08-07 | 太原理工大学 | Heating system of gas-steam combined cycle thermal power plant |
| CN110220234A (en) * | 2019-03-11 | 2019-09-10 | 华电电力科学研究院有限公司 | A kind of heating system and its working method optimized based on heat supply network circulating water flow and the temperature difference |
| CN111425274A (en) * | 2020-04-16 | 2020-07-17 | 京能(赤峰)能源发展有限公司 | Combined heat and power generation system capable of meeting resident and industrial heat supply requirements during deep peak shaving |
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