CN106225039A - Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof - Google Patents
Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof Download PDFInfo
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- CN106225039A CN106225039A CN201610766973.5A CN201610766973A CN106225039A CN 106225039 A CN106225039 A CN 106225039A CN 201610766973 A CN201610766973 A CN 201610766973A CN 106225039 A CN106225039 A CN 106225039A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 149
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 33
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- QFAXIZQBSCGJMA-UHFFFAOYSA-N mercury;hydrate Chemical compound O.[Hg] QFAXIZQBSCGJMA-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
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
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
-
- 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
-
- 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
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
Abstract
The present invention relates to feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof, include feed pump turbine group, cooling tower and space-heating installation, feed pump turbine group includes several feed pump turbine structures, the recirculated water water side of feed pump turbine structure connects the input of switching valve, one of outfan of switching valve passes sequentially through circulation pump of heat-supply network structure, heat exchangers for district heating structure connects the recirculated water water inlet end of space-heating installation, the recirculated water backwater end of space-heating installation connects the recirculated water water inlet end of feed pump turbine structure by one of switch valve, form heating circular water-loop；The recirculated water water inlet end of the two of the outfan of switching valve even cooling tower, the recirculated water backwater end of cooling tower, by the recirculated water water inlet end of two connection feed pump turbine structures of switch valve, forms non-heating circular water-loop；Each feed pump turbine structure is connected and composed by feed pump turbine and condenser.The present invention can improve feed pump turbine efficiency and the reaction rate of varying load condition regulation, it is achieved high efficiency of energy comprehensively utilizes.
Description
Technical field
The present invention relates to a kind of heating system, be specifically related to a kind of feed pump turbine low-vacuum-operating circulating water heating and supply
The heat energy that hot systems and power-economizing method power plant feed pump turbine thereof produce carries out conversion, to meet urban heat supplying demand.
Belong to electric power plant circulating water heating equipment technical field.
Background technology
Main steam turbine Heat Supplying with Low Vacuum is a kind of steam turbine operation pattern of eighties of last century rise at the end of the sixties, is mainly used in
The small-sized fired power generating unit steam turbine in the north heating transformation project such as (such as 12MW, 24MW small unit).This technology former
Reason is to utilize turbine steam condenser to cool down this partial heat energy of Water Sproading, and these cooling water are supplied directly to heat user,
Heat user send back to again after being finished turbine condenser do again as cooling water uses, i.e. formation one cyclic process.
Owing to heat supply network return water temperature is generally 60-70 degree, more much higher than cooling tower returns the coolant-temperature gage come, return to condensing
After device, heat transfer effect is deteriorated, and namely reduces the condensation efficiency of turbine discharge, then results in the afterbody vacuum of steam turbine
Reducing, steam turbine is run under partial vacuum.Owing to this phenomenon is because, for thermally-induced, then having had ' Heat Supplying with Low Vacuum '
Word.
At present, main steam turbine Heat Supplying with Low Vacuum is generally used for small thermal power unit heat supply transformation.Heating period, uses coarse vacuum to follow
Ring water heat supply running, condenser uses as thermal source, utilizes turbine discharge to heat heat supply network recirculated water.Non-heating period, steam turbine
Vacuum is run, and recirculated water is cooled down by cooling tower.Its shortcoming is: (1) steam turbine is mainly used for generating, and transports in the case of coarse vacuum
The steam turbine of row, can cause generating set to be unable to reach unit design load, thus cause generating set cannot expire at Heating Season
The requirement that unit is generated electricity by foot electrical network by nameplate electricity；(2) steam turbine is the lowest in the efficiency of low-vacuum-operating, and economy is poor,
It is not suitable for Large-scale fire-electricity unit；(3) steam turbine is very poor to heat supply network heating demand variation adaptability, and system reliability is low.
Summary of the invention
An object of the present invention, is for solving existing feed pump turbine low-vacuum-operating circulating water heating system
The problem that the efficiency run is low, less economical, adaptability is not strong, system reliability is low, it is provided that a kind of feed pump turbine is low very
Dry running recirculated water heating system.Have and meet electrical network unit is possessed the requirement of nameplate generating capacity, be applicable not only to
Small thermal power unit heat supply is transformed and is applicable to the feature of Large-scale fire-electricity unit.
The two of the purpose of the present invention, are to provide for a kind of high efficient and reliable, are applicable to the feedwater of large electric power plant heating unit
The power-economizing method of mercury vapour turbine low-vacuum-operating circulating water heating system.
One of the object of the invention can be achieved through the following technical solutions:
Feed pump turbine low-vacuum-operating circulating water heating system, includes feed pump turbine group, cooling tower
And space-heating installation, it is characterised in that: feed pump turbine group includes several feed pump turbine structures, feed pump turbine
The recirculated water water side of structure connects the input of switching valve, and one of outfan of switching valve passes sequentially through circulation pump of heat-supply network knot
Structure, heat exchangers for district heating structure connect the recirculated water water inlet end of space-heating installation, and the recirculated water backwater end of space-heating installation is by opening
Close one of valve and connect the recirculated water water inlet end of feed pump turbine structure, form heating circular water-loop；The output of switching valve
The recirculated water water inlet end of the two of end even cooling tower, the recirculated water backwater end of the cooling tower two connection feed pump steamers by switch valve
The recirculated water water inlet end of machine structure, forms non-heating circular water-loop；Each feed pump turbine structure is by feed pump turbine
Connect and compose with condenser, condenser is specifically set on feed pump turbine, formed and transported by feed pump turbine coarse vacuum
Row, condenser are the heating heat supply network circulating water structure of thermal source heat exchanger, or form the operation of feed pump turbine fine vacuum, condensing
Device is the cooling circulating water structure of cooling heat exchanger.
One of the object of the invention can also be achieved through the following technical solutions:
Further, described heat exchangers for district heating structure is composed in parallel by several heat exchangers for district heatings.
Further, described circulation pump of heat-supply network structure is connected by several water pumps, and several compose in parallel.
Further, the junction in heat exchangers for district heating structure Yu circulation pump of heat-supply network structure is provided with regulation valve.
Further, it is provided with electronic at the recirculated water backwater end of space-heating installation with the input junction of one of switch valve
Water strainer.
Further, the outfan of electric water filter is by the input of three connection circulation pump of heat-supply network structures of switch valve
End.
The two of the object of the invention can be achieved through the following technical solutions:
The power-economizing method of feed pump turbine low-vacuum-operating circulating water heating system,
1) with the main steam turbine of power plant as generating set, feed pump turbine described in claim 1 and being attached thereto
The subsidiary engine equipment of equipment power plant, by described feed pump turbine at low-vacuum-operating to improve exhaust temperature, utilizes condensing
Device heating heat supply network recirculated water, to realize external heating and to save the energy；
2) main steam turbine runs is not affected by Heating Season and non-heating season；Heating Season, feed pump turbine low-vacuum-operating,
Condenser uses as thermal source heat exchanger, utilizes turbine discharge to heat heat supply network recirculated water；Non-heating season, feed pump turbine is high
Vacuum is run, and condenser uses as cooling heat exchanger, utilizes circulating cooling water of power plant system to take away used heat, finally cold by power plant
But tower release used heat is in environment；Two kinds of operating conditions are realized by valve transfer.
The two of the object of the invention can also be achieved through the following technical solutions:
Further, at Heating Season, to heating reliability and heat supply network varying duty strong adaptability, not by feed pump steamer
The impact change of machine operating load；To heating varying load condition, it is provided with water temperature and Flow-rate adjustment bypass, heating user can be met and bear
The change of lotus.
Further, when condenser conversion steam thermal energy can not meet heating user's request, use and supply in heat supply network circulation
Heat exchangers for district heating is set on waterpipe and is adjusted heat energy.
It is the most progressive that the present invention has substantive distinguishing features highlighted below:
1, the feed pump turbine low-vacuum-operating circulating water heating system that the present invention relates to, due to its mercury vapour that feeds water
The recirculated water water side of turbine structure connects the input of switching valve, and one of outfan of switching valve passes sequentially through heat supply network recirculated water
Pump configuration, heat exchangers for district heating structure connect the recirculated water water inlet end of space-heating installation, and the recirculated water backwater end of space-heating installation leads to
Cross one of switch valve and connect the recirculated water water inlet end of feed pump turbine structure, form heating circular water-loop；Switching valve
The recirculated water water inlet end of the two of outfan even cooling tower, the recirculated water backwater end of the cooling tower two connection feed pumps by switch valve
The recirculated water water inlet end of steam turbine structure, forms non-heating circular water-loop；Each feed pump turbine structure is by the mercury vapour that feeds water
Turbine and condenser connect and compose, and specifically arrange condenser on feed pump turbine, are formed low very by feed pump turbine
Dry running, condenser are the heating heat supply network circulating water structure of thermal source heat exchanger, or form the operation of feed pump turbine fine vacuum,
Condenser is the cooling circulating water structure of cooling heat exchanger；Follow therefore, it is possible to solve existing feed pump turbine low-vacuum-operating
The problem that the efficiency that ring water warm heating system is run is low, less economical, adaptability is not strong, system reliability is low, has efficiency
The effect that height, good economy performance, strong adaptability, system reliability are high, it is possible to meet electrical network and unit is possessed nameplate generating capacity
Requirement, is applicable not only to small thermal power unit heat supply transformation and is applicable to the feature of Large-scale fire-electricity unit.
The power-economizing method of the feed pump turbine low-vacuum-operating circulating water heating system that 2, the present invention relates to, passes through
Arranging condenser on each feed pump turbine, each group feed pump steam turbine wheel low-vacuum-operating, steam thermal energy is by respective condensing
Device processes and is delivered to heating user by heat supply network periodical feeding pipeline, and described heat exchangers for district heating group arranges circulating heating heating tube
On road；At low-vacuum-operating to improve exhaust temperature, condenser is utilized to heat heat supply network periodical feeding pipeline recirculated water, it is achieved externally
Heating and the target of the saving energy.Feed pump turbine operating load can be eliminated simultaneously and exhaust temperature changes main steamer
Low pressure (LP) cylinder efficiency and the condenser heat exchange efficiency of machine have undesirable effect, and improve main steam turbine low pressure (LP) cylinder efficiency and power plant is comprehensive
Efficiency.Therefore, the present invention both can improve feed pump turbine efficiency and the reaction rate of varying load condition regulation, can adopt again
The cold end loss of feed pump turbine can be reduced during warm season, heating steam consumption and fuel consumption can also be saved simultaneously, real
Existing high efficiency of energy comprehensive utilization.
3, the present invention passes through and is provided with switch valve on non-heating cycling use of water loop and circulating heating heat supply loop to enter
Row switching.Make heating period and non-heating period switch over use by switch valve, thus, heating load of the present invention can be strengthened and become
The adaptability changed and system reliability, and be effectively improved main steam turbine generating efficiency and reduce boiler oil consumption, reduce power plant
Overall auxiliary power consumption level and raising unit heat economy.
Accompanying drawing explanation
Fig. 1 is the theory diagram of one specific embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Specific embodiment 1:
With reference to the feed pump turbine low-vacuum-operating circulating water heating system shown in Fig. 1, include feedwater mercury vapour
Wheel unit, cooling tower 2 and space-heating installation, feed pump turbine group includes several feed pump turbine structures, and feed water mercury vapour
The recirculated water water side of turbine structure connects the input of switching valve 9, and one of outfan of switching valve 9 passes sequentially through heat supply network circulation
Water pump structure 10, heat exchangers for district heating structure 7 connect the recirculated water water inlet end of space-heating installation 6, and the recirculated water of space-heating installation 6 returns
Water end (W.E.) connects the recirculated water water inlet end of feed pump turbine structure by one of switch valve, forms heating circular water-loop 4；Turn
Changing the recirculated water water inlet end of two company's cooling towers 2 of the outfan of valve 9, the recirculated water backwater end of cooling tower 2 passes through the two of switch valve
Connect the recirculated water water inlet end of feed pump turbine structure, form non-heating circular water-loop 3；Each feed pump turbine structure
Connected and composed by feed pump turbine 1 and condenser 5, condenser 5 is specifically set on feed pump turbine 1, formed by giving
Water pump steam turbine 1 low-vacuum-operating, condenser 5 are the heating heat supply network circulating water structure of thermal source heat exchanger, or form feed pump
Steam turbine 1 fine vacuum is run, and condenser 5 is the cooling circulating water structure of cooling heat exchanger.
In being embodied as in fact, described heat exchangers for district heating structure 7 is composed in parallel by several heat exchangers for district heatings.Described heat supply network follows
Ring water pump structure 10 is connected by several water pumps, and several compose in parallel.Tie with circulation pump of heat-supply network in heat exchangers for district heating structure 7
The junction of structure 10 is provided with regulation valve 7-1, utilizes regulation valve 7-1 to regulate heating amount.
Further, it is contemplated that cycling use of water life-time service certainly will produce impurity and affect water quality, and then impact is for thermal effect
Really, it is provided with electric water filter 8 at the recirculated water backwater end of space-heating installation 6 with the input junction of one of switch valve, this electricity
The outfan of dynamic water strainer 8 is by the input of three connection circulation pump of heat-supply network structures 10 of switch valve.Pass through electric water filter
Carry out the impurity of filtration cycle water.
The power-economizing method of above-mentioned feed pump turbine low-vacuum-operating circulating water heating system:
1) with the main steam turbine of power plant as generating set, feed pump turbine 1 described in claim 1 and being attached thereto
The subsidiary engine equipment of equipment power plant, by described feed pump turbine 1 at low-vacuum-operating to improve exhaust temperature, utilizes condensing
Device 5 heats heat supply network recirculated water, to realize external heating and to save the energy；
2) main steam turbine runs is not affected by Heating Season and non-heating season；Heating Season, feed pump turbine 1 coarse vacuum is transported
OK, condenser 5 uses as thermal source heat exchanger, utilizes turbine discharge to heat heat supply network recirculated water；Non-heating season, feed pump steamer
Machine 1 fine vacuum run, condenser 5 uses as cooling heat exchanger, utilizes circulating cooling water of power plant system to take away used heat, finally by
Power plant cooling tower release used heat is in environment；Two kinds of operating conditions are realized by valve 9 switching.
Concrete power-economizing method is:
At Heating Season, to heating reliability and heat supply network varying duty strong adaptability, do not run negative by feed pump turbine
Lotus impact change；To heating varying load condition, it is provided with water temperature and Flow-rate adjustment bypass, the change of heating user and load can be met
Change.
Condenser 5 change steam thermal energy can not meet heating user's request time, use on heat supply network periodical feeding pipeline 4
Heat exchangers for district heating 7 is set and is adjusted heat energy.I.e. described heating period and non-heating period are by non-heating circular water-loop 3
The switch valve 9 being provided with heating circular water-loop 4 switches over, and changes steam thermal energy at condenser 5 and can not meet heating
During user's request, the heat exchangers for district heating 7 arranged on heat supply network periodical feeding pipeline 4 is used to be adjusted heat energy.
Being respectively arranged with condenser 5 on group feed pump turbine 1, respectively group feed pump turbine 1 is all separately configured solidifying
Vapour device 5, makes each group of feed pump turbine 1 carry out energy conversion each via the condenser 5 being separately configured, by transporting in coarse vacuum
Row, to improve exhaust temperature, utilizes condenser 5 to heat the recirculated water of heat supply network periodical feeding pipeline, is called for short heat supply network recirculated water, it is achieved
Externally heating and the target of the saving energy.
When feed pump turbine low-vacuum-operating circulating water heating system runs, main steam turbine runs not by heating
Season and non-heating season impact, the condenser on main steam turbine is not affected by each group of feed pump turbine 1 steam discharge and is improved heat exchange
Efficiency.Heating Season, feed pump turbine low-vacuum-operating, condenser 5 uses as thermal source heat exchanger, utilizes turbine discharge to add
Heat supply network recirculated water.Non-heating season, the operation of feed pump turbine GPS survey vacuum, condenser 5 uses as cooling heat exchanger, profit
Take away used heat with power plant's recirculating cooling water system, finally discharged used heat in environment by power plant cooling tower 2.Described Heating Season and non-
Two kinds of operating conditions of Heating Season are cut 9 by valve and are brought realization.
When the present invention applies, there is good heating reliability and varying duty adaptability, at Heating Season, heating is supplied
Thermal reliability and heat supply network varying duty strong adaptability, do not affected change by feed pump turbine operating load.To heating varying duty work
Condition, is provided with water temperature and Flow-rate adjustment bypass, can meet the change of heating user and load.
Described feed pump turbine low-vacuum-operating circulating water heating system and the economic well-being of workers and staff of application process thereof:
1) feed pump turbine waste heat from exhaust can be reclaimed at Heating Season, reduce cold end loss.
2) heating steam consumption can be saved at Heating Season, improve main steam turbine generating efficiency and reduce boiler oil consumption.
3) circulating cooling water of power plant pump auxiliary power consumption can be reduced at Heating Season, reduce power plant's overall auxiliary power consumption level and carry
High unit heat economy.
4) high to heating load change strong adaptability and system reliability.
The explanation of technical terms that the present invention relates to is as follows:
1) main frame steam turbine: power plant is for the steam turbine of generating
2) steam feed pump: use the feed pump that small steam turbine drives
3) feed pump turbine: drive subsidiary engine equipment small steam turbine
4) turbine discharge: there is the superheated steam of calorific potential energy after pipeline introduces steam turbine, just calorific potential can be transformed into
Kinetic energy.Swiftly flowing Steam Actuation turbine rotor rotates, and forms mechanical energy.Discharge the steam of calorific potential energy from steam turbine
The steam drain in portion is discharged.
5) cold end loss: the heat that turbine discharge contains is taken away by the cooling water of condenser, this part of heat energy belongs to electricity
Factory's used heat.
6) condenser: turbine discharge is condensed into a kind of water-cooled surfaces formula heat exchanger of water, and cooling water is (also known as circulation
Water) enter cooling tube bundle and from outlet hydroecium discharge from import hydroecium.In condenser, height is maintained during for ensureing steam condensation
Vacuum and good heat-transfer effect, be also equipped with air-extractor, and it is constantly by the air leak in condenser and other non-condensing gas
Body is extracted out.Air-extractor mainly has water jet air ejector, stream-jet ejector, oil-sealed rotary pump etc..
7) main frame steam turbine: power plant is for the steam turbine of generating
8) low-vacuum-operating: steam turbine is run apparently higher than normal power generation power generator turbine and run under vacuum levels
9) Heating Season: about the cities and towns Heating Season of northern area, generally October～Second Year April, by area and temperature
Determine concrete period.
10) circulating cooling water of power plant system: for take away power plant's main steam turbine steam discharge containing used heat cooling system.Power plant
Recirculating cooling water system includes cooling tower, water circulating pump and relevant connection tubing.
11) auxiliary power consumption: refer to that Controlling Auxiliaries in Power Plants equipment uses electrisity consumption necessary to running.
Claims (9)
1. feed pump turbine low-vacuum-operating circulating water heating system, includes feed pump turbine group, cooling tower (2)
And space-heating installation, it is characterised in that: feed pump turbine group includes several feed pump turbine structures, feed pump turbine
The recirculated water water side of structure connects the input of switching valve (9), and one of outfan of switching valve (9) passes sequentially through heat supply network circulation
Water pump structure (10), heat exchangers for district heating structure (7) connect the recirculated water water inlet end of space-heating installation (6), space-heating installation (6)
Recirculated water backwater end connects the recirculated water water inlet end of feed pump turbine structure by one of switch valve, forms heating recirculated water
Loop (4)；The recirculated water water inlet end of the two of the outfan of switching valve (9) even cooling tower (2), the recirculated water backwater of cooling tower (2)
Hold by the two of the switch valve recirculated water water inlet ends connecting feed pump turbine structures, form non-heating circular water-loop (3)；
Each feed pump turbine structure is connected and composed, specifically at feed pump turbine by feed pump turbine (1) and condenser (5)
(1) arranging condenser (5) on, being formed by feed pump turbine (1) low-vacuum-operating, condenser (5) is adding of thermal source heat exchanger
Heat supply network circulating water structure, or form the operation of feed pump turbine (1) fine vacuum, condenser (5) is the cold of cooling heat exchanger
But circulating water structure.
Feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 1, it is characterised in that:
Described heat exchangers for district heating structure (7) is composed in parallel by several heat exchangers for district heatings.
Feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 1, it is characterised in that:
Described circulation pump of heat-supply network structure (10) is connected by several water pumps, and several compose in parallel.
Feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 1, it is characterised in that:
Regulation valve (7-1) it is provided with in the junction of heat exchangers for district heating structure (7) Yu circulation pump of heat-supply network structure (10).
Feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 1, it is characterised in that:
It is provided with electric water filter 8 with the input junction of one of switch valve at the recirculated water backwater end of space-heating installation (6).
Feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 5, it is characterised in that:
The outfan of electric water filter (8) is by the input of three connections circulation pump of heat-supply network structure (10) of switch valve.
The power-economizing method of feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 1,
It is characterized in that:
1) with the main steam turbine of power plant as generating set, feed pump turbine (1) described in claim 1 and setting of being attached thereto
The subsidiary engine equipment of standby power plant, by described feed pump turbine (1) at low-vacuum-operating to improve exhaust temperature, utilizes condensing
Device (5) heating heat supply network recirculated water, to realize external heating and to save the energy；
2) main steam turbine runs is not affected by Heating Season and non-heating season；Heating Season, feed pump turbine (1) low-vacuum-operating,
Condenser (5) uses as thermal source heat exchanger, utilizes turbine discharge to heat heat supply network recirculated water；Non-heating season, feed pump steamer
Machine (1) fine vacuum is run, and condenser (5) uses as cooling heat exchanger, utilizes circulating cooling water of power plant system to take away used heat,
Eventually by power plant cooling tower release used heat to environment；Two kinds of operating conditions are realized by valve (9) switching.
The power-economizing method of feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 7,
It is characterized in that: at Heating Season, to heating reliability and heat supply network varying duty strong adaptability, do not run by feed pump turbine
Loading effects changes；To heating varying load condition, it is provided with water temperature and Flow-rate adjustment bypass, the change of heating user and load can be met
Change.
The power-economizing method of feed pump turbine low-vacuum-operating circulating water heating system the most according to claim 7,
It is characterized in that: when condenser (5) conversion steam thermal energy can not meet heating user's request, use at heat supply network periodical feeding pipe
Heat exchangers for district heating (7) is set on road (4) and is adjusted heat energy.
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| CN201610766973.5A CN106225039A (en) | 2016-08-30 | 2016-08-30 | Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof |
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| CN201610766973.5A CN106225039A (en) | 2016-08-30 | 2016-08-30 | Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656986A (en) * | 2019-10-15 | 2020-01-07 | 中国电建集团山东电力建设第一工程有限公司 | Circulating cooling water system of steam turbine and operation method thereof |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240909A (en) * | 2008-03-19 | 2008-08-13 | 清华大学 | Steam jet type heat pump heat distribution system for recovering thermal power plant condensing residual heat |
| CN201218558Y (en) * | 2008-05-05 | 2009-04-08 | 洛阳九暖热力设备科技有限公司 | Thermal energy utilization apparatus for cooling circulating water of thermoelectric plant condenser |
| CN202101307U (en) * | 2010-11-30 | 2012-01-04 | 罗益龙 | Normal-pressure heat collection type solar energy heating and hot-water branched machine set |
| JP2012167910A (en) * | 2011-02-17 | 2012-09-06 | Miura Co Ltd | Degassing system |
| CN102705020A (en) * | 2012-05-18 | 2012-10-03 | 华北电力大学 | Combined heat and power generation system and heat supplying method |
| CN102817651A (en) * | 2012-08-03 | 2012-12-12 | 北京中能蓝天节能技术开发有限公司 | Dragging and heat-supplying multipurpose steam extracting backpressure small turbine and heat supplying system thereof |
| CN102889630A (en) * | 2012-09-29 | 2013-01-23 | 华北电力大学 | Low-grade heating system provided with novel heat supply turbine and operating and regulating method thereof |
| CN202734015U (en) * | 2012-08-21 | 2013-02-13 | 晋城市恒光热力有限公司 | Rough vacuum circulating water heat supply system of thermal power plant |
| CN103017238A (en) * | 2012-12-25 | 2013-04-03 | 浙江工商大学 | Waste heat recovery heating system of biomass power plant |
| CN202902419U (en) * | 2012-09-20 | 2013-04-24 | 杨茂华 | Waste heat recovery system based on heat pump waste heat recovery and adopting heat storage device |
| CN103216870A (en) * | 2013-05-06 | 2013-07-24 | 上海工程技术大学 | Multi-energy conversion control system |
| CN203190486U (en) * | 2013-04-22 | 2013-09-11 | 赵向龙 | Heating energy power circulation pump of heating station |
| CN203586593U (en) * | 2013-11-15 | 2014-05-07 | 刘建生 | Geothermal energy resource device |
| CN103884037A (en) * | 2014-03-11 | 2014-06-25 | 济钢集团有限公司 | Circulating water heat exchange system of heating network |
| CN204043022U (en) * | 2014-07-29 | 2014-12-24 | 石家庄安能科技有限公司 | A kind of low vacuum circulating water waste heat utilization |
| CN104482582A (en) * | 2014-12-12 | 2015-04-01 | 华电电力科学研究院 | Fully-adaptive single-rotor low-vacuum circulating water heating system |
| CN204612228U (en) * | 2015-02-28 | 2015-09-02 | 华电电力科学研究院 | A kind of low temperature heat system |
| CN206310568U (en) * | 2016-08-30 | 2017-07-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Feed pump turbine low-vacuum-operating circulating water heating system |
-
2016
- 2016-08-30 CN CN201610766973.5A patent/CN106225039A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240909A (en) * | 2008-03-19 | 2008-08-13 | 清华大学 | Steam jet type heat pump heat distribution system for recovering thermal power plant condensing residual heat |
| CN201218558Y (en) * | 2008-05-05 | 2009-04-08 | 洛阳九暖热力设备科技有限公司 | Thermal energy utilization apparatus for cooling circulating water of thermoelectric plant condenser |
| CN202101307U (en) * | 2010-11-30 | 2012-01-04 | 罗益龙 | Normal-pressure heat collection type solar energy heating and hot-water branched machine set |
| JP2012167910A (en) * | 2011-02-17 | 2012-09-06 | Miura Co Ltd | Degassing system |
| CN102705020A (en) * | 2012-05-18 | 2012-10-03 | 华北电力大学 | Combined heat and power generation system and heat supplying method |
| CN102817651A (en) * | 2012-08-03 | 2012-12-12 | 北京中能蓝天节能技术开发有限公司 | Dragging and heat-supplying multipurpose steam extracting backpressure small turbine and heat supplying system thereof |
| CN202734015U (en) * | 2012-08-21 | 2013-02-13 | 晋城市恒光热力有限公司 | Rough vacuum circulating water heat supply system of thermal power plant |
| CN202902419U (en) * | 2012-09-20 | 2013-04-24 | 杨茂华 | Waste heat recovery system based on heat pump waste heat recovery and adopting heat storage device |
| CN102889630A (en) * | 2012-09-29 | 2013-01-23 | 华北电力大学 | Low-grade heating system provided with novel heat supply turbine and operating and regulating method thereof |
| CN103017238A (en) * | 2012-12-25 | 2013-04-03 | 浙江工商大学 | Waste heat recovery heating system of biomass power plant |
| CN203190486U (en) * | 2013-04-22 | 2013-09-11 | 赵向龙 | Heating energy power circulation pump of heating station |
| CN103216870A (en) * | 2013-05-06 | 2013-07-24 | 上海工程技术大学 | Multi-energy conversion control system |
| CN203586593U (en) * | 2013-11-15 | 2014-05-07 | 刘建生 | Geothermal energy resource device |
| CN103884037A (en) * | 2014-03-11 | 2014-06-25 | 济钢集团有限公司 | Circulating water heat exchange system of heating network |
| CN204043022U (en) * | 2014-07-29 | 2014-12-24 | 石家庄安能科技有限公司 | A kind of low vacuum circulating water waste heat utilization |
| CN104482582A (en) * | 2014-12-12 | 2015-04-01 | 华电电力科学研究院 | Fully-adaptive single-rotor low-vacuum circulating water heating system |
| CN204612228U (en) * | 2015-02-28 | 2015-09-02 | 华电电力科学研究院 | A kind of low temperature heat system |
| CN206310568U (en) * | 2016-08-30 | 2017-07-07 | 中国能源建设集团广东省电力设计研究院有限公司 | Feed pump turbine low-vacuum-operating circulating water heating system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656986A (en) * | 2019-10-15 | 2020-01-07 | 中国电建集团山东电力建设第一工程有限公司 | Circulating cooling water system of steam turbine and operation method thereof |
| WO2021073556A1 (en) * | 2019-10-15 | 2021-04-22 | 中国电建集团山东电力建设第一工程有限公司 | Steam turbine circulating cooling water system and operating method therefor |
| CN110656986B (en) * | 2019-10-15 | 2024-01-19 | 中国电建集团山东电力建设第一工程有限公司 | Circulating cooling water system of steam turbine and operation method thereof |
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Application publication date: 20161214 |