CN204703967U - A kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply - Google Patents

A kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply Download PDF

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Publication number
CN204703967U
CN204703967U CN201520088906.3U CN201520088906U CN204703967U CN 204703967 U CN204703967 U CN 204703967U CN 201520088906 U CN201520088906 U CN 201520088906U CN 204703967 U CN204703967 U CN 204703967U
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China
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condenser
compression refrigeration
valve
driven compression
refrigeration system
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CN201520088906.3U
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梁双印
高满达
王国生
梁承宇
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Beijing North Three Closes Enertech Co Ltd
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Beijing North Three Closes Enertech Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]

Abstract

The utility model discloses and a kind of improve vacuum and the embedded combined system of residual heat of condensed water heat supply and device, comprise turbine low pressure cylinder, turbine low pressure cylinder connects injection type condenser, turbine low pressure cylinder is provided with blow-off line, blow-off line is connected with air cooling condenser, is provided with cooling and mixing device in the distribution of steam pipeline of blow-off line and air cooling condenser; Air cooling condenser connects condensate water tank and air extractor, condensate water tank connects circulation water of condensation header, circulation water of condensation header is connected with air extractor, air extractor connects electric driven compression refrigeration system, electric driven compression refrigeration system connects photovoltaic station service associating power supply unit, circulation water of condensation header, dry type air cooler system are connected with electric driven compression refrigeration system annular, and dry type air cooler system is also communicated with the pipeline between described electric driven compression refrigeration system and described circulation water of condensation header simultaneously.

Description

A kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply
Technical field
The utility model relates to thermodynamic cycle technical field, specifically, relates to a kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply.
Background technique
Along with the enforcement of landing of the flourish of China's economy and a series of relevant policies, light based on manufacturing industry, heavy industry industry chain (supply chain) north extends, in the North China headed by Jing-jin-ji region, huge electrical energy demands market has been expedited the emergence of in the area such as northeast, old industrial bases and northwest, for meeting the every profession and trade utilization of power demand headed by industry, also in order to ensure the safety reliability of northern area residential electricity consumption, northern area resident winter heating demand can be taken into account simultaneously, country between nearly 20 years in the Shanxi headed by the Inner Mongol, Shaanxi, Hebei, the province that the economic developments such as three provinces in the northeast of China are comparatively given prominence to, rely on the advantage of its coal equal energy source, large quantities of Coal-fired group has been built in investment.Due to northern area climatic characteristic and shortage of water resources present situation, the fired power generating unit of numerous quantity uses direct air condensed steam device, to using water wisely.
But along with constantly putting into operation of direct air cooling fired power generating unit, summer, the problem of vacuum difference revealed gradually.Direct Air-cooled Unit uses air cooling condenser, its principle is: steam is by air cooling condenser heat exchanger pipe bundle and environment heat exchange, the driving force of heat transmission is the temperature difference that ambient temperature and condensing vapour exist, summer environment temperature height can cause that heat transmission is smooth, air cooling condenser internal pressure raises and pressure surge is frequent, vacuum can reach more than 35kPa, has a strong impact on unit operation Security and Economy.
According to the second law of thermodynamics, use high-grade steam to carry out heated feed water and can cause the capacity loss that does work in a large number, cause huge energy to waste.And current most of northern area Direct Air-cooled Unit, all bear the task of oriented resident's heat supply winter, usually use steam turbine stage casing to draw gas, heat heat supply network water.This will cause the capacity loss that does work in a large number, net coal consumption rate increase, with current national energy-saving reduce discharging large policy opposing from.
Therefore, develop a kind of for improve air cooled fossil fired unit vacuum and winter Heat Supplying with Low Vacuum combined unit, improve and maintain the vacuum of unit, ensure unit operation Economy, raising unit energy-conserving and environment-protective level, just becomes the problem that Professional visitors needs solution badly.
Model utility content
For the above-mentioned technical problem in correlation technique, the utility model proposes a kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply, can improve air cooled fossil fired unit vacuum and winter Heat Supplying with Low Vacuum, improve and maintain the vacuum of unit, ensure unit operation Economy, improve unit energy-conserving and environment-protective level.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply, comprise turbine low pressure cylinder, described turbine low pressure cylinder lower end is connected with injection type condenser, and turbine low pressure cylinder is provided with the blow-off line matched, described blow-off line is connected with air cooling condenser, meanwhile, mixing arrangement is provided with in the distribution of steam pipeline of described blow-off line and described air cooling condenser, described air cooling condenser lower end is connected with the condensate water tank and air extractor that match, wherein, described condensate water tank is connected with circulation water of condensation header, described circulation water of condensation header is connected with described air extractor, the other end of described air extractor is connected with electric driven compression refrigeration system, described electric driven compression refrigeration system is connected with photovoltaic station service associating power supply unit, described circulation water of condensation header is also connected with described electric driven compression refrigeration system, and the compressor in described electric driven compression refrigeration system is also connected with photovoltaic station service associating power supply unit, described photovoltaic station service associating power supply unit is connected with the vaporizer in described electric driven compression refrigeration system by dry type air cooler system, and described dry type air cooler system is also communicated with block valve three and described electric driven compression refrigeration system simultaneously, and described air extractor is also connected with described dry type air cooler system, described electric driven compression refrigeration system is by circulating water pump one, block valve two, modulating valve two is connected with described cooling and mixing device, described circulating water pump one is connected with described injection type condenser, and described injection type condenser is also by circulating water pump two, modulating valve four is connected with described circulation water of condensation header, described circulating water pump two is connected with described condensate water tank, in addition, described circulation water of condensation header is also successively by block valve four, condensate transfer pump, modulating valve nine is connected with heat exchangers for district heating, described heat exchangers for district heating one end is connected with described injection type condenser, simultaneously, the described heat exchangers for district heating the other end is connected with peak load calorifier, described peak load calorifier is connected with described condensate water tank, described condensate water tank is also connected with described heat exchangers for district heating, the described heat exchangers for district heating the other end is connected with described condensate water tank.
Further, described air extractor comprises the Nash hytor be connected with air cooling condenser, and the two ends, left and right of described Nash hytor are connected to moisture trap and cooler, and described moisture trap is connected with described cooler.
Further, described electric driven compression refrigeration system comprises the vaporizer be connected with described cooler, and one end of described vaporizer is connected with compressor and condenser in turn, and described condenser is connected with described vaporizer by throttle valve.
Further, butterfly control valve one is connected with between described turbine low pressure cylinder and described injection type condenser; Condensate pump, modulating valve six and modulating valve 11 is connected with in turn between described condensate water tank and described circulation water of condensation header; Modulating valve one, block valve one and circulating water pump one is connected with in turn between described air extractor and described electric driven compression refrigeration system; Described circulation water of condensation header and described electric driven compression refrigeration system are also connected with modulating valve five, water pump one, block valve three in turn, be connected with modulating valve three and block valve seven between described circulating water pump one and described injection type condenser in turn, between described circulating water pump two and described condensate water tank, be connected with block valve five and modulating valve eight in turn; Pipeline between described modulating valve three and block valve seven is also by the pipeline described in block valve eight connectivity between injection type condenser and described circulating water pump two.
Further, between described heat exchangers for district heating and described injection type condenser, be connected with modulating valve ten, meanwhile, between described heat exchangers for district heating and described peak load calorifier, be also connected with water pump two; Water pump three is connected with between described peak load calorifier and described condensate water tank, also be connected with condensate pump, modulating valve six and modulating valve seven between described condensate water tank and described heat exchangers for district heating in turn, between described heat exchangers for district heating and described condensate water tank, be connected with block valve six.
The beneficial effects of the utility model: the utility model can reduce rapidly working medium specific volume, optimize air cooling condenser end heat transfer effect; Strengthen unit cooling capacity, significantly improve unit vacuum; Valuable water resources can be recycled, there is the advantages such as investment little, high efficiency, characteristics of compact layout, occupation of land be little, improve environmental protection and economy, avoid acting capacity loss, abundant recycling residual heat of condensed water or exhausted spare heat, very big reduction Turbine Cold Junction loss, significantly improves generatine set heat efficiency and Economy, reduces unit coal consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the connection diagram of raising vacuum according to the utility model embodiment and the embedded combined system of residual heat of condensed water heat supply.
In figure:
1, turbine low pressure cylinder; 2, cooling and mixing device; 3, blow-off line; 4, air cooling condenser; 5, Nash hytor; 6, moisture trap; 7, cooler; 8, condensate water tank; 9, vaporizer; 10, compressor; 11, condenser; 12, throttle valve; 13, circulating water pump one; 14, block valve one; 15, modulating valve one; 16, block valve two; 17, modulating valve two; 18, modulating valve three; 19, injection type condenser; 20, butterfly control valve one; 21, circulating water pump two; 22, modulating valve four; 23, circulation water of condensation header; 24, modulating valve five; 25, water pump one; 26, block valve three; 27, block valve four; 28, modulating valve six; 29, modulating valve seven; 30, block valve five; 31, modulating valve eight; 32, condensate transfer pump; 33, modulating valve nine; 34, heat exchangers for district heating; 35, condensate pump; 36, modulating valve ten; 37, water pump two; 38, peak load calorifier; 39, water pump three; 40, photovoltaic station service associating power supply unit; 41, modulating valve 11; 42, block valve six; 43, block valve seven; 44, block valve eight; 47, dry type air cooler system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, belongs to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply, comprise turbine low pressure cylinder 1, described turbine low pressure cylinder 1 lower end is connected with injection type condenser 19, and turbine low pressure cylinder 1 is provided with the blow-off line 3 matched, described blow-off line 3 is connected with air cooling condenser 4, meanwhile, is provided with cooling and mixing device 2 in the distribution of steam pipeline of described blow-off line 3 and described air cooling condenser 4, described air cooling condenser 4 lower end is connected with the condensate water tank 8 and air extractor that match, wherein, described condensate water tank 8 is connected with circulation water of condensation header 23, described circulation water of condensation header 23 is connected with described air extractor, the other end of described air extractor is connected with electric driven compression refrigeration system, described electric driven compression refrigeration system is connected with photovoltaic station service associating power supply unit 40, described circulation water of condensation header 23 is also connected with described electric driven compression refrigeration system, and the compressor 10 in described electric driven compression refrigeration system is also connected with photovoltaic station service associating power supply unit 40, described photovoltaic station service associating power supply unit 40 is connected with the vaporizer 9 in described electric driven compression refrigeration system by dry type air cooler system 47, and described dry type air cooler system 47 is also communicated with block valve 3 26 and described electric driven compression refrigeration system simultaneously, and described air extractor is also connected with described dry type air cooler system 47, described electric driven compression refrigeration system is by circulating water pump 1, block valve 2 16, modulating valve 2 17 is connected with described cooling and mixing device 2, described circulating water pump 1 is connected with described injection type condenser 19, and described injection type condenser 19 is also by circulating water pump 2 21, modulating valve 4 22 is connected with described circulation water of condensation header 23, described circulating water pump 2 21 is connected with described condensate water tank 8, in addition, described circulation water of condensation header 23 is also successively by block valve 4 27, condensate transfer pump 32, modulating valve 9 33 is connected with heat exchangers for district heating 34, described heat exchangers for district heating 34 one end is connected with described injection type condenser 19, simultaneously, described heat exchangers for district heating 34 the other end is connected with peak load calorifier 38, described peak load calorifier 38 is connected with described condensate water tank 8, described condensate water tank 8 is also connected with described heat exchangers for district heating 34, described heat exchangers for district heating 34 the other end is connected with described condensate water tank 8.
In one embodiment, described air extractor comprises the Nash hytor 5 be connected with air cooling condenser 4, the two ends, left and right of described Nash hytor 5 are connected to moisture trap 6 and cooler 7, and described moisture trap 6 is connected with described cooler 7.
In one embodiment, described electric driven compression refrigeration system comprises the vaporizer 9 be connected with described cooler 7, one end of described vaporizer 9 is connected with compressor 10 and condenser 11 in turn, and described condenser 11 is connected with described vaporizer 9 by throttle valve 12.
In one embodiment, butterfly control valve 1 is connected with between described turbine low pressure cylinder 1 and described injection type condenser 19; Condensate pump 35, modulating valve 6 28 and modulating valve 11 is connected with in turn between described condensate water tank 8 and described circulation water of condensation header 23; Modulating valve 1, block valve 1 and circulating water pump 1 is connected with in turn between described air extractor and described electric driven compression refrigeration system; Described circulation water of condensation header 23 is also connected with modulating valve 5 24, water pump 1, block valve 3 26 in turn with described electric driven compression refrigeration system, be connected with modulating valve 3 18 and block valve 7 43 between described circulating water pump 1 and described injection type condenser 19 in turn, between described circulating water pump 2 21 and described condensate water tank 8, be connected with block valve 5 30 and modulating valve 8 31 in turn; Described modulating valve 3 18 and the pipeline between block valve 7 43 are also communicated with the pipeline between described injection type condenser 19 and described circulating water pump 2 21 by block valve 8 44.
In one embodiment, between described heat exchangers for district heating 34 and described injection type condenser 19, be connected with modulating valve 10, meanwhile, between described heat exchangers for district heating 34 and described peak load calorifier 38, be also connected with water pump 2 37; Water pump 3 39 is connected with between described peak load calorifier 38 and described condensate water tank 8, also be connected with condensate pump 35, modulating valve 6 28 and modulating valve 7 29 between described condensate water tank 8 and described heat exchangers for district heating 34 in turn, between described heat exchangers for district heating 34 and described condensate water tank 8, be connected with block valve 6 42.
Conveniently understand technique scheme of the present utility model, below by way of in concrete usage mode, technique scheme of the present utility model is described in detail.
When specifically using, according to raising vacuum described in the utility model and the embedded combined system of residual heat of condensed water heat supply, gained water of condensation of condensing in described injection type condenser 19 and the circulation water of condensation participating in circulating converge into circulation water of condensation, and by circulating water pump 2 21 points of two-way, one tunnel is for the water of condensation with quality such as institute condensing vapours is successively by block valve 5 30, modulating valve 8 31 enters into described condensate water tank 8, another road is that cycles left water of condensation enters into described circulation water of condensation header 23, circulation water of condensation needed for heat supply enters into described heat exchangers for district heating 34 by condensate transfer pump 32, described heat exchangers for district heating 34 is surface-type heat exchanger, circulation water of condensation heats heat user backwater one-level in described heat exchangers for district heating 34, circulation water of condensation after heat release enters into described injection type condenser 19 by being divided into two-way one road after modulating valve 10, another road is connected on the pipeline between circulating water pump 1 and block valve 1, form closed cycle.Heat user backwater through one-level heating enters into described peak load calorifier 38 by described water pump 2 37, described peak load calorifier 38 is surface-type heat exchanger, low section of steam turbine draw gas in described peak load calorifier 38 to heat user backwater secondary heating after condense into water, and entering into described condensate water tank 8 by described water pump 3 39, the heat user backwater after secondary heating is carried to heat user by heat supply network.
It is worth mentioning that, described electric driven compression refrigeration system and described dry type air cooler system are paired running, and dry type air cooler system is Major Cooling Methods, namely in described water of condensation header, water mainly cools in described dry type air cooler system, and described electric pump drives refrigeration plant to be radiator cooler.Concrete, the water that in circulation water of condensation header 23, temperature is higher enters into the heat exchanger pipe bundle of dry type air cooler system, and by dry type air cooler system, and the forcing ambient air convection heat exchange that blower fan drives.Use at north water deficit area, have the technique effect easily obtaining air, and do not need water consumption to cool, atmospheric corrosion is low, does not need special snaking measure, and moreover, its operation and maintenance expense is also very low.
In described cooler 7, cooling water is from described electric driven compression refrigeration plant and dry type air cooler system, in described moisture trap 6, separating obtained water is after described cooler 7 cools, a part enters the sucking pipe of described Nash hytor 5, make to be about to the condensable partial condensation entered in the gas of described Nash hytor 5 to get off, to improve the exhaust capacity of described Nash hytor 5; Another part directly enters the pump housing of described Nash hytor 5, and as the supplementing water of working water, the work of stablizing described Nash hytor 5 is exerted oneself.
Water in described circulation water of condensation header 23 mainly cools in dry type air cooler system, electric driven compression refrigeration system is as supplement heat rejecter means, secondaryly to cool in electric driven compression refrigeration system, cooling gained cooling water temperature is lower than ambient temperature, described injection type condenser 19 is entered on the one hand by Cemented filling, described cooling water mixing arrangement is used to enter turbine low pressure cylinder in the blow-off line 3 of air cooling system and the air cooling condenser distribution of steam pipeline of air cooling condenser 4 on the other hand, for no reason poor contact heat-exchanging hybrid with turbine discharge, significantly can promote the vacuum of vapour condenser.
Described cooling and mixing device comprises cooling water conveyance conduit and is arranged on the some cooling water nozzles on described cooling water conveyance conduit, wherein, inside the blow-off line that described cooling water nozzle is arranged on air cooling condenser 4 and air cooling condenser distribution of steam pipeline, described cooling water conveyance conduit is fixed on described turbine low pressure cylinder 1 and the blow-off line of air cooling condenser 4 and the outside of air cooling condenser distribution of steam pipeline.
Wherein, when putting into operation raising vacuum system and device summer, block valve 4 27 turns off, block valve 6 42 turns off, and residual heat of condensed water heating system is bypassed.When putting into operation residual heat of condensed water heating system winter, different anti-corrosion measures is taked to be divided into two kinds of situations according to raising vacuum system, situation one is: when improving vacuum system and adopting filling with inert gas mode anticorrosion, the each device improved included by vacuum system is all stopped transport, namely block valve 1 turns off, block valve 2 16 turns off, block valve 3 26 turns off, block valve 5 30 turns off, and improves vacuum system and is bypassed; Situation two is: when improving vacuum system and adopting the low discharge method of operation anticorrosion, each block valve is open state, improves each device included by vacuum system and normally runs.
The dragging motor of described circulating water pump 1, circulating water pump 2 21, water pump 1, water pump 2 37, water pump 3 39, condensate transfer pump 32, condensate pump 35 is all the double-speed motor matched.When summer, described double-speed motor operates in top gear when rugged environment, unit high load, to improve described circulating water pump 1, described circulating water pump 2 21, described water pump 1, ensure described air cooling condenser 4 better vacuum, described double-speed motor operates in lower-speed state when performing low-load running of machine set, and is equipped with the flow restriction control effect of the corresponding modulating valve on pipeline, effectively can save station service, reduce and the energy is additionally consumed, and cost-saving; When running in the winter time, in described injection type condenser, condensing vapour amount increases, described circulating water pump 1, circulating water pump 2 21, water pump 1, water pump 2 37, water pump 3 39, condensate transfer pump 32, condensate pump 35 need to select corresponding motion speed shelves according to working state, to ensure the normal operation of residual heat of condensed water heating system, and obtain the energy-saving effect in good runing adjustment process.
Wherein, described heat exchangers for district heating 34 is surface-type heat exchanger, the water of condensation that circulates in described circulating cooling water tank is one-level heat hot user backwater in described heat exchangers for district heating 34, circulation water of condensation after heat exchange cooling enters into described injection type condenser 19 by modulating valve 10, participates in heat transfer process next time.
Heat user backwater is after described heat exchangers for district heating 34 one-level heating, described peak load calorifier 38 is entered into by described water pump 2 37, described peak load calorifier 38 is surface-type heat exchanger, low section of steam turbine draws gas and after described peak load calorifier 38 carries out secondary heating to the heat user backwater heated through one-level, condenses into water be delivered in condensate water tank 8 by water pump 3 39, and heat user backwater reaches heating demand after secondary heating, be transmitted back to heat supply network, to heat user heat supply.
Wherein, water four part of described circulation water of condensation header 23, a part is from described condensate water tank 8, and a part carrys out to absorb heat in the cooler in comfortable described air extractor the cooling water heated up, a part is from demineralized water supplementing water, and a part is from the water of condensation of injection type condenser 19.
For described cooling and mixing device, its concrete working principle is as follows: cooling water is by after described cooling water conveyance conduit, be injected in described steam turbine to the blow-off line and air cooling condenser distribution of steam pipeline of described air cooling condenser 4 by described cooling water nozzle, on the one hand, the rapid specific volume of steam can be made to reduce, steam negotiability is strengthened; On the other hand, cooling water sprays into rear rapid quickening steam-condensation, has increased substantially the degree of vacuum of unit entirety.
In sum, by means of technique scheme of the present utility model, the utility model is by newly-increased a set of injection type condenser system, cooling and mixing device, dry type air cooler system and electric driven compression refrigeration system, turbine low pressure cylinder steam discharge can be made directly to contact combination cooling water, rapid reduction working medium specific volume, promote the flowing of steam in air condenser system, especially optimize air cooling condenser end heat transfer effect, utilize injection type condenser to shunt low pressure (LP) cylinder steam discharge, strengthen unit cooling capacity, rely on the advantage of direct hybridization heat exchange, obtain the effect of large film-cooled heat with less occupation of land, significantly improve unit vacuum, when direct air cooling system is operationally by ambient wind disturbance, the frequent fluctuation of unit vacuum will be caused, this device improves vacuum system and device by newly-increased, add in original direct air cooling system there is very large thermal inertia and thermal capacitance in a large number recirculated cooling water as stable working medium, when external environment is unstable, the circulating water participating in this device circulating can cushion the back-pressure surges that direct air condensed steam device Heat exchanger causes, while obtaining raising vacuum, the effect of stable vacuum can be played, the utility model can maintain the steady state under vacuum, reduces the frequent variable working condition action of blower fan, improves its safety in operation, ensures that air cooling condenser normally runs, effectively raises stability and the reliability of plant running, extend the working life of device, also vacuum system can be improved simultaneously, enclosed cooling water circulation is used to reach the object improving unit vacuum, be different from and adopt wet type spike cooling tower, valuable water resources can be recycled, the great lot of water resources waste avoiding wet cooling tower to cause, suit very much the original intention that northern magnificent group of motors adopts direct air cooling, there is investment little, high efficiency, characteristics of compact layout, take up an area the advantages such as little, directly mix with steam the object realizing rolling up heat exchange area by cooling water, can larger economic benefit be exchanged for small investment and improve the ability of vacuum, Air-cooled Unit vacuum is improved by closed cycle, do not need outer spray demineralized water to strengthen air cooling condenser heat exchange, can for the Air-cooled Unit saving being built up in north water deficit area a large amount of valuable water resources, improve its environmental protection and economy, be conducive to the propagation and employment in market also by a kind of residual heat of condensed water heating system and device, avoid the waste of the high-quality steam that usual unit uses the direct heat hot user backwater of extracted steam from turbine to cause, also the steam heating that use still can generate electricity just is avoided and the acting capacity loss caused, the utility model to draw gas spike heat hot user backwater with low section of steam turbine, can accomplish under the prerequisite meeting heat demand, uses steam to obtain high-grade electric energy as far as possible, fully avoids steam direct heating and a large amount of acting capacity losses of causing, it is worth mentioning that, use and carry out heat hot user backwater without water of condensation in the vapour condenser of generating capacity, fully recycle residual heat of condensed water or exhausted spare heat, greatly reduce Turbine Cold Junction loss, significantly improve generatine set heat efficiency and Economy, reduce unit coal consumption.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (5)

1. one kind is improved vacuum and the embedded combined system of residual heat of condensed water heat supply, comprise turbine low pressure cylinder (1), it is characterized in that, described turbine low pressure cylinder (1) lower end is connected with injection type condenser (19), and turbine low pressure cylinder (1) is provided with the blow-off line (3) matched, described blow-off line (3) is connected with air cooling condenser (4), meanwhile, cooling and mixing device (2) is provided with in the distribution of steam pipeline of described blow-off line (3) and described air cooling condenser (4), described air cooling condenser (4) lower end is connected with the condensate water tank (8) and air extractor that match, wherein, described condensate water tank (8) is connected with circulation water of condensation header (23), described circulation water of condensation header (23) is connected with described air extractor, the other end of described air extractor is connected with electric driven compression refrigeration system, described electric driven compression refrigeration system is connected with photovoltaic station service associating power supply unit (40), described circulation water of condensation header (23) is connected with described electric driven compression refrigeration system, and the compressor (10) in described electric driven compression refrigeration system is also connected with photovoltaic station service associating power supply unit (40), described photovoltaic station service associating power supply unit (40) is connected with the vaporizer (9) in described electric driven compression refrigeration system by dry type air cooler system (47), described dry type air cooler system (47) is also communicated with block valve three (26) and described electric driven compression refrigeration system simultaneously, and described air extractor is also connected with described dry type air cooler system (47), described electric driven compression refrigeration system is by circulating water pump one (13), block valve two (16), modulating valve two (17) is connected with described cooling and mixing device (2), described circulating water pump one (13) is connected with described injection type condenser (19), and described injection type condenser (19) is also by circulating water pump two (21), modulating valve four (22) is connected with described circulation water of condensation header (23), described circulating water pump two (21) is connected with described condensate water tank (8), in addition, described circulation water of condensation header (23) is also successively by block valve four (27), condensate transfer pump (32), modulating valve nine (33) is connected with heat exchangers for district heating (34), described heat exchangers for district heating (34) one end is connected with described injection type condenser (19), simultaneously, described heat exchangers for district heating (34) the other end is connected with peak load calorifier (38), described peak load calorifier (38) is connected with described condensate water tank (8), described condensate water tank (8) is also connected with described heat exchangers for district heating (34), described heat exchangers for district heating (34) the other end is connected with described condensate water tank (8).
2. raising vacuum according to claim 1 and the embedded combined system of residual heat of condensed water heat supply, it is characterized in that, described air extractor comprises the Nash hytor (5) be connected with air cooling condenser (4), the two ends, left and right of described Nash hytor (5) are connected to moisture trap (6) and cooler (7), and described moisture trap (6) is connected with described cooler (7).
3. raising vacuum according to claim 1 and the embedded combined system of residual heat of condensed water heat supply, it is characterized in that, described electric driven compression refrigeration system comprises the vaporizer (9) be connected with described cooler (7), one end of described vaporizer (9) is connected with compressor (10) and condenser (11) in turn, and described condenser (11) is connected with described vaporizer (9) by throttle valve (12).
4. raising vacuum according to claim 1 and the embedded combined system of residual heat of condensed water heat supply, is characterized in that, is connected with butterfly control valve one (20) between described turbine low pressure cylinder (1) and described injection type condenser (19); Condensate pump (35), modulating valve six (28) and modulating valve ten one (41) is connected with in turn between described condensate water tank (8) and described circulation water of condensation header (23); Modulating valve one (15), block valve one (14) and circulating water pump one (13) is connected with in turn between described air extractor and described electric driven compression refrigeration system; Described circulation water of condensation header (23) and described electric driven compression refrigeration system are also connected with modulating valve five (24), water pump one (25), block valve three (26) in turn, be connected with modulating valve three (18) and block valve seven (43) between described circulating water pump one (13) and described injection type condenser (19) in turn, between described circulating water pump two (21) and described condensate water tank (8), be connected with block valve five (30) and modulating valve eight (31) in turn; Described modulating valve three (18) and the pipeline between block valve seven (43) are also communicated with the pipeline between described injection type condenser (19) and described circulating water pump two (21) by block valve eight (44).
5. raising vacuum according to claim 1 and the embedded combined system of residual heat of condensed water heat supply, it is characterized in that, modulating valve ten (36) is connected with between described heat exchangers for district heating (34) and described injection type condenser (19), meanwhile, water pump two (37) is also connected with between described heat exchangers for district heating (34) and described peak load calorifier (38); Water pump three (39) is connected with between described peak load calorifier (38) and described condensate water tank (8), also be connected with condensate pump (35), modulating valve six (28) and modulating valve seven (29) between described condensate water tank (8) and described heat exchangers for district heating (34) in turn, between described heat exchangers for district heating (34) and described condensate water tank (8), be connected with block valve six (42).
CN201520088906.3U 2015-02-09 2015-02-09 A kind of raising vacuum and the embedded combined system of residual heat of condensed water heat supply Expired - Fee Related CN204703967U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104632310A (en) * 2015-02-09 2015-05-20 北京北方三合能源技术有限公司 Embedded composite heat supply system and device capable of increasing waste heat of vacuum and condensed water
CN106224020A (en) * 2016-09-30 2016-12-14 北京北方三合能源技术有限公司 A kind of fired power generating unit two-way accumulation of energy fall coal consumption system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104632310A (en) * 2015-02-09 2015-05-20 北京北方三合能源技术有限公司 Embedded composite heat supply system and device capable of increasing waste heat of vacuum and condensed water
CN104632310B (en) * 2015-02-09 2017-07-28 北京北方三合能源技术有限公司 It is a kind of to improve vacuum and the embedded hybrid system of residual heat of condensed water heat supply
CN106224020A (en) * 2016-09-30 2016-12-14 北京北方三合能源技术有限公司 A kind of fired power generating unit two-way accumulation of energy fall coal consumption system

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