CN206360737U

CN206360737U - Environmental protection and energy saving electricity generation system and power station

Info

Publication number: CN206360737U
Application number: CN201621490508.5U
Authority: CN
Inventors: 翁志远
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2017-07-28
Anticipated expiration: 2026-12-30

Abstract

The utility model is related to technical field of power generation, more particularly to a kind of environmental protection and energy saving electricity generation system and power station.The environmental protection and energy saving electricity generation system includes cryogenic fluid processing memory, level Four booster pump, device to be cooled, four level steam turbines, two grades of condensers and the two grades of condensation pumps that head and the tail are sequentially communicated；Device to be cooled includes the one or more in boiler, first turbine and boiler flue；The second medium that level Four booster pump is used to make cryogenic fluid handle memory memory storage is delivered to device to be cooled, is being delivered to four level steam turbines；Two grades of condensers are used for the medium for cooling down second turbine output, and second medium is delivered in cryogenic fluid processing memory by two grades of condensation pumps.The power station includes the environmental protection and energy saving electricity generation system.The purpose of this utility model is to provide environmental protection and energy saving electricity generation system and power station, to solve the technical problem that largely wastes of heat of boiler present in prior art, steam turbine, boiler flue.

Description

Environmental protection and energy saving electricity generation system and power station

Technical field

The utility model is related to technical field of power generation, more particularly to a kind of environmental protection and energy saving electricity generation system and power station.

Background technology

Chimney (y ā n c ō ng)：It is one of most ancient, most important environmental control system.Chimney is also thermal power plant simultaneously In with the matching used Architectural Equipment of boiler controller system, its main function be flue dust in a large amount of flue gases boiler emission and harmful Gas guide high-altitude into, increase dilation angle, it is to avoid local pollution is overweight；Moreover, cloud-kissing chimney is also present The landmark in thermal power plant.The utility model of chimney is extremely early, when primitive man has found fire, while being found that such one Individual reason：Where where is it fire, must have cigarette.Chimney has remained hundreds of thousands year in human practice activity, and the mankind had once spent very long Time improve smokestack.At present, Chinese highest single-cylinder type reinforced concrete chimney is 210 meters.Highest multi-cartridge steel Reinforced concrete chimney is four 212 meters high cartridge type chimneys of Qinling Power Plant.Cigarette of the height more than 300 meters being completed in the world now Chimney reaches tens of seats, and the single-cylinder type reinforced concrete chimney in such as Michele power station is up to 368 meters.

In the prior art, generally flue gas in boiler flue is directly discharged in air using chimney, using water cooling or It is air-cooled wait cooling boiler or steam turbine simultaneously heat energy is emitted into air, waste a large amount of heat energy of flue gas in boiler flue with And a large amount of heat energy on boiler or steam turbine wall；Substantial amounts of thermal energy runs away, significant wastage resource.

Utility model content

The purpose of this utility model is to provide environmental protection and energy saving electricity generation system and power station, to solve to exist in the prior art Boiler, the technical problem that largely wastes of steam turbine, the heat of boiler flue.

The environmental protection and energy saving electricity generation system that the utility model is provided, including the cryogenic fluid processing storage that head and the tail are sequentially communicated Device, level Four booster pump, device to be cooled, four level steam turbines, two grades of condensers and two grades of condensation pumps；The device to be cooled includes One or more in boiler, first turbine and boiler flue；

The level Four booster pump is described for making the second medium of the cryogenic fluid processing memory memory storage be delivered to Device to be cooled, so that the device cooling to be cooled；

The second medium for flowing through the device to be cooled is delivered to four level steam turbine, to drive the level Four vapour Turbine is rotated；

Two grades of condensers are used for the medium for cooling down second turbine output, and the second medium is passed through into described two Level condensation pump is delivered in the cryogenic fluid processing memory.

Further, the boiler flue is provided with the first chimney heat exchanger；First chimney heat exchanger is used to connect Boiler；

First chimney heat exchanger is connected between the level Four booster pump and four level steam turbine, for by described in The heat energy of flue gas passes to the second medium in boiler flue.

Further, the boiler flue is provided with the second chimney heat exchanger；The boiler, first chimney heat exchanger It is sequentially communicated with second chimney heat exchanger；

Second chimney heat exchanger is connected between the level Four booster pump and four level steam turbine, for by described in The heat energy of flue gas passes to the second medium in boiler flue.

Further, the boiler flue is provided with flue fan-compressor and flue condenser；First flue is changed Hot device, the flue fan-compressor, second chimney heat exchanger and the flue condenser are sequentially communicated；

The flue fan-compressor is used to compress the flue gas for coming from first chimney heat exchanger, and is conveyed to described Second chimney heat exchanger；

The flue condenser is used to cool down the flue gas for coming from second chimney heat exchanger.

Further, described environmental protection and energy saving electricity generation system, including cryogenic fluid compressor and heat exchanger, in addition to three-level Steam turbine or expanding machine；

The cryogenic fluid compressor, the heat exchanger, three level steam turbine or the expanding machine, the flue are cold Condenser head and the tail are sequentially communicated and form circulation loop；

The cryogenic fluid compressor is used to compress the 3rd medium, and the 3rd medium is cold by the heat exchanger But, three level steam turbine or the expanding machine are delivered to, to drive three level steam turbine or the expanding machine to rotate；

The flue condenser is by coming from the 3rd Jie that three level steam turbine or the expanding machine are exported Matter cools down flue gas in the boiler flue, and the 3rd medium is delivered into the cryogenic fluid compressor；

Three-level cryogenic fluid memory is connected between three level steam turbines or the expanding machine and the heat exchanger.

Further, described environmental protection and energy saving electricity generation system also includes two-stage supercharging pump, one-level condenser and two grades of steamers Machine；

Cryogenic fluid processing memory, the two-stage supercharging pump, the one-level condenser, the second turbine, Two grades of condensers and two grades of condensation pumps head and the tail are sequentially communicated and form circulation loop；

The second medium of the cryogenic fluid processing memory memory storage is delivered to described one by the two-stage supercharging pump Level condenser, for cooling down the exhaust steam for the first turbine for flowing through the one-level condenser, and is delivered to the second turbine, To drive the second turbine to rotate；

Described two grades are connected between three level steam turbines or the expanding machine and the cryogenic fluid compressor to coagulate Vapour device；Two grades of condensers are cold by coming from the 3rd medium that three level steam turbine or the expanding machine are exported The second medium of the second turbine output, and the 3rd medium is delivered to the cryogenic fluid compressor.

Further, the boiler flue is provided with compressor front end separator, compressor rear end separator With flue memory；

First chimney heat exchanger, compressor front end separator, the flue fan-compressor, described Two chimney heat exchangers, compressor rear end separator, the flue condenser and the flue memory are sequentially communicated；

Compressor front end separator is used to separate, store flue gas in the boiler flue；

Compressor rear end separator is used to separate, store flue gas in the boiler flue；

The flue memory is used to store flue gas in the boiler flue.

Further, the boiler flue is provided with memory front end separator；The memory front end separation is removed Dirt device is connected between the flue condenser and the flue memory, for separating, storing flue gas in the boiler flue.

Further, the boiler flue is provided with initial filter equipment；The initial filter equipment is connected to the boiler and described Between first chimney heat exchanger, for filtering the one or more in sulphur, nitre and the dust in the boiler flue in flue gas.

The power station that the utility model is provided, including described environmental protection and energy saving electricity generation system.

Environmental protection and energy saving electricity generation system and power station that the utility model is provided, memory memory storage is handled by cryogenic fluid Second medium be delivered to device to be cooled by level Four booster pump, wherein, device to be cooled include boiler, first turbine and One or more in boiler flue；To cool down the discharge tail of the furnace wall of boiler, the outer wall of first turbine and boiler flue One or more in gas, by the heat energy displacement of device to be cooled to second medium；Second medium absorbs heat energy rear-guard Four level steam turbines are rotated, the heat energy of second medium is converted into four level steam turbine rotating mechanical energies；Pass through two grades of condensers again The medium of second turbine output is cooled down, and second medium is delivered to cryogenic fluid by two grades of condensation pumps and handles memory It is interior, realize circulation.Relative in the prior art, flue gas in boiler flue is directly discharged in air, using water using chimney The cooling boiler or first turbine such as cold or air-cooled, waste in boiler flue a large amount of heat energy and boiler of flue gas or A large amount of heat energy on first turbine wall；This environmental protection and energy saving electricity generation system handles the second medium in memory by cryogenic fluid The band cooling device such as boiler, first turbine and boiler flue is cooled down, so that second medium absorbs heat and drives four level steam turbines to turn It is dynamic, effectively by including the heat energy in one or more kinds of devices to be cooled in boiler, first turbine and boiler flue Four level steam turbine rotating mechanical energies are converted into, that effectively utilizes includes one kind in boiler, first turbine and boiler flue Or the heat energy of a variety of devices to be cooled.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the first pass schematic diagram for the environmental protection and energy saving electricity generation system that the utility model embodiment one is provided；

Fig. 2 is the second procedure schematic diagram for the environmental protection and energy saving electricity generation system that the utility model embodiment one is provided；

Fig. 3 is the first partial schematic diagram of the environmental protection and energy saving electricity generation system shown in Fig. 1；

Fig. 4 is the second partial schematic diagram of the environmental protection and energy saving electricity generation system shown in Fig. 1.

Icon：101- boilers；102- first turbines；103- one-level generators；104- one-level condensers；105- one-levels are coagulated Tie pump；106- one-level oxygen-eliminating devices；107- one-level booster pumps；201- cryogenic fluids handle memory；202- two-stage supercharging pumps；203- Second turbine；Bis- grades of condensers of 204-；Bis- grades of condensation pumps of 205-；206- secondary generators；301- cryogenic fluid compressors； 302- heat exchangers；The level steam turbines of 303- tri-；304- three-level generators；305- three-level cryogenic fluid memories；401- level Four is pressurized Pump；The level steam turbines of 402- tetra-；403- level Four generators；501- initial filter equipment；The chimney heat exchangers of 502- first；Before 503- compressors Hold separator；504- flue fan-compressors；The chimney heat exchangers of 505- second；506- compressors rear end separator； 507- flue condensers；508- memories front end separator；509- flue memories.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Embodiment one

Referring to shown in Fig. 1-Fig. 4, present embodiments providing a kind of environmental protection and energy saving electricity generation system；Fig. 1 provides for the present embodiment Environmental protection and energy saving electricity generation system first pass schematic diagram；The second of the environmental protection and energy saving electricity generation system that Fig. 2 provides for the present embodiment Schematic flow sheet；In order to clearly understand the present embodiment, Fig. 3, Fig. 4 are two of the environmental protection and energy saving electricity generation system shown in Fig. 1 Individual partial schematic diagram.Arrow shown in Fig. 1, Fig. 2 is the flow direction of medium in pipeline, wherein, A represents the output of level Four booster pump End, B represents the input of four level steam turbines, and C represents the output end (namely input of flue condenser) of three level steam turbines, D The input (namely output end of flue condenser) of cryogenic fluid compressor is represented, E represents the output end of boiler flue, F tables Showing the medium of flue memory memory storage can reuse, and such as medium of flue memory memory storage is carbon dioxide liquid Cryogenic fluid can be supplied to handle memory.

Referring to shown in Fig. 1-Fig. 4, the environmental protection and energy saving electricity generation system that the present embodiment is provided, suitable for recovery boiler, one-level steamer One or more kinds of heats in machine (steam turbine i.e. of the prior art) and boiler flue, including head and the tail be sequentially communicated it is low Warm working medium processing memory 201, level Four booster pump 401, device to be cooled, four level steam turbines 402, two grades of condensers 204 and two Level condensation pump 205, and form circulation loop.Device to be cooled is included in boiler 101, first turbine 102 and boiler flue It is one or more kinds of.Specifically, the second medium of the cryogenic fluid processing memory storage of memory 201 is used to cool down boiler 101 One or more in the emission of furnace wall, the outer wall of first turbine 102 and boiler flue.

Level Four booster pump 401 is to be cooled for making the second medium that cryogenic fluid handles the memory storage of memory 201 be delivered to Device, so that device to be cooled is cooled down, second medium is passed to by the heat energy of device to be cooled.

The second medium for flowing through device to be cooled is delivered to four level steam turbines 402, to drive four level steam turbines 402 to rotate. In certain circumstances, second medium absorbs the heat energy of device to be cooled and can form the second medium of high pressure, so as to drive four Level steam turbine 402 does work.Preferably, the drive connection level Four generator 403 of four level steam turbine 402, will treat to a certain extent The heat energy of cooling device is converted into the electric energy of level Four generator 403, improves generating efficiency.In addition, four level steam turbines 402 can be with Other rotation apparatuses of drive connection.

Two grades of condensers 204 are used for the medium for cooling down the output of second turbine 203, and second medium is passed through into two grades of condensations Pump 205 is delivered in cryogenic fluid processing memory 201.Preferably, in complete after second medium is cooled down by two grades of condensers 204 Portion or operative liquid are back in cryogenic fluid processing memory 201, realize circulation.It will be appreciated by those skilled in the art that It is after two grades of cooling second mediums of condenser 204, to cause vacuum in the exhaust outlet of four level steam turbines 402 to a certain extent, Done work so that heat energy contained by second medium is as much as possible by four level steam turbines 402.

Preferably, the second medium of circulation becomes phase medium, namely second medium for gas-liquid in the environmental protection and energy saving electricity generation system The conversion of gas phase and liquid phase is carried out in the environmental protection and energy saving electricity generation system.Wherein, cryogenic fluid handles the memory storage of memory 201 Second medium for example can be carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；Certainly, cryogenic fluid processing storage The second medium of the memory storage of device 201 can also be other cryogenic medias.Preferably, the cryogenic fluid processing memory storage of memory 201 Second medium be liquid carbon dioxide.

Environmental protection and energy saving electricity generation system described in the present embodiment, the second of the memory storage of memory 201 is handled by cryogenic fluid Medium is delivered to device to be cooled by level Four booster pump 401, wherein, device to be cooled includes boiler 101, first turbine 102 and boiler flue in one or more；With cool down the furnace wall of boiler 101, first turbine 102 outer wall and boiler smoke One or more in the emission in road, by the heat energy displacement of device to be cooled to second medium；Second medium is inhaled Drive level Four steam turbine 402 to rotate after receiving heat energy, the heat energy of second medium is converted into the rotating mechanical energy of four level steam turbine 402； The medium that second turbine 203 is exported is cooled down by two grades of condensers 204 again, and second medium is passed through into two grades of condensation pumps 205 It is delivered in cryogenic fluid processing memory 201, realizes circulation.Relative in the prior art, using chimney by boiler flue Flue gas is directly discharged in air, using water cooling or cooling boiler 101 or the first turbine 102 such as air-cooled, wastes pot A large amount of heat energy in stove flue on a large amount of heat energy and boiler 101 or the wall of first turbine 102 of flue gas；This environmental protection and energy saving is sent out The second medium that electric system is handled by cryogenic fluid in memory 201 cools down boiler 101, first turbine 102 and boiler smoke The band cooling device such as road, so that second medium absorbs heat and drives four level steam turbines 402 to rotate, will effectively include boiler 101, one The heat energy in one or more kinds of devices to be cooled in level steam turbine 102 and boiler flue is converted into four level steam turbines 402 Rotating mechanical energy, including for effectively utilizing is one or more kinds of in boiler 101, first turbine 102 and boiler flue The heat energy of device to be cooled.

In the alternative of the present embodiment, boiler flue is provided with the first chimney heat exchanger 502；First chimney heat exchanger 502 are used to connect boiler 101.

First chimney heat exchanger 502 is connected between the level steam turbine 402 of level Four booster pump 401 and four, for by boiler smoke The heat energy of flue gas passes to second medium in road.By the first chimney heat exchanger 502 with by boiler flue flue gas heat energy pass Second medium is passed, under to a certain degree, second medium can form the second medium of high pressure after absorbing heat energy, so as to drive four Level steam turbine 402 does work, and then can effectively utilize the heat energy of flue gas in boiler flue.

In the alternative of the present embodiment, boiler flue is provided with the second chimney heat exchanger 505；Boiler 101, the first cigarette The chimney heat exchanger 505 of road heat exchanger 502 and second is sequentially communicated.

Second chimney heat exchanger 505 is connected between the level steam turbine 402 of level Four booster pump 401 and four, for by boiler smoke The heat energy of flue gas passes to second medium in road.In order to make it easy to understand, the first chimney heat exchanger 502 and the second cigarette can be construed to Road heat exchanger 505 is connected in parallel between the level steam turbine 402 of level Four booster pump 401 and four.Pass through the second chimney heat exchanger 505 So that the heat energy of flue gas in boiler flue is passed into second medium, under to a certain degree, second medium absorbs being capable of shape after heat energy Into the second medium of high pressure, so that drive four level steam turbines 402 to do work, and then can be effectively further using in boiler flue The heat energy of flue gas.By the first chimney heat exchanger 502 and the second chimney heat exchanger 505, the flue gas in boiler flue is dropped twice Temperature, can effectively further utilize the heat energy of flue gas in boiler flue.

Further, boiler flue is provided with flue fan-compressor 504 and flue condenser 507；First flue heat exchange Device 502, flue fan-compressor 504, the second chimney heat exchanger 505 and flue condenser 507 are sequentially communicated.

Flue fan-compressor 504 is used to compress the flue gas for coming from the first chimney heat exchanger 502, and is conveyed to the second cigarette Road heat exchanger 505.

Flue condenser 507 is used to cool down the flue gas for coming from the second chimney heat exchanger 505.Pass through flue fan-compressor Flue gas in flue gas in 504 compression boiler flues, and the cooling boiler flue of flue condenser 507, in certain circumstances can be by Flue gas compressor is condensed into liquid in boiler flue, reduces pollution of the flue gas to environment in boiler flue.

In the prior art, connection boiler flue chimney main function be put a chimney on the stove and make the fire draw cigarette, drain flue gas, improve burning bar Part, is one of most ancient, most important environmental control system, is also to set with the matching used building of boiler 101 in thermal power plant Apply, its main function is that the flue dust in a large amount of flue gases that boiler 101 is discharged guides high-altitude, increase diffusion half into harmful gas Footpath, it is to avoid local pollution is overweight.Thus power plant predominant gas emission comes from product after chimney, that is, fired coal combustion.From Theoretically, the exhaust gas temperature of power plant boiler 101 is more low better.But, because the fuel of coal-burning boiler 101 can be produced in burning Raw sulfur dioxide, because its dew point is 150 ° Celsius, less than this temperature, in the afterbody of boiler 101 formation " sulfuric acid water " corrosion Metal, so the design exhaust gas temperature of coal-burning boiler 101 is all to be not less than 150 DEG C, not higher than 160 DEG C.According further to expert's system Meter:1 degree of electricity is often saved, it is just corresponding to reduce 0.997 kilogram of carbon dioxide of disposal of pollutants；0.03 kilogram of sulfur dioxide, 0.015 kilogram Nitrogen oxides.The flue gas of boiler flue is removed outside vapor and flue dust, and predominant gas emission has carbon dioxide, titanium dioxide The carbon monoxide that sulphur, nitrogen oxides, imperfect combustion are produced, the heated Hydrocarbon Organic separated out of coal and other micro derivatives Thing.In chimney of electric plant gaseous effluent, carbon dioxide content accounts for more than 95%, by contrast, sulfur dioxide, nitrogen oxides, Pellet PM10, PM2.5 content very little, but these substances on human health harm is but extremely big.Boiler flue By chimney uninterrupted emission year in year out, its gaseous effluent total amount is very huge, so the dioxy contained in air Change sulphur, nitrogen oxides, pellet PM10, PM2.5 total amount it is also very big, it is also extremely big to human health risk.Institute Environmental protection and energy saving electricity generation system is stated using compression condensation technology, by carbon dioxide, sulfur dioxide and nitrogen oxide in boiler flue, can Suck particulate matter PM10, PM2.5 and carry out condensation liquefaction classification processing, it is possible to achieve power plant generate electricity year in year out " zero-emission, No pollution ".

In the alternative of the present embodiment, the environmental protection and energy saving electricity generation system includes cryogenic fluid compressor 301 and heat exchange Device 302, in addition to three level steam turbines 303 or expanding machine (not shown).

Cryogenic fluid compressor 301, heat exchanger 302, three level steam turbines 303 or expanding machine, the head and the tail of flue condenser 507 It is sequentially communicated and forms circulation loop；That is cryogenic fluid compressor 301, heat exchanger 302, three level steam turbines 303 and flue condensation The head and the tail of device 507 are sequentially communicated and form circulation loop, or, cryogenic fluid compressor 301, heat exchanger 302, expanding machine and flue The head and the tail of condenser 507 are sequentially communicated and form circulation loop.It is understood that cryogenic fluid compressor 301, heat exchanger 302, Three level steam turbines 303 or expanding machine, flue condenser 507 constitute a complete refrigeration system.

Cryogenic fluid compressor 301 is used to compress the 3rd medium, and the 3rd medium is cooled down by heat exchanger 302, conveys To three level steam turbines 303 or expanding machine, to drive three level steam turbines 303 or expanding machine to rotate；Preferably, three level steam turbine 303 or expanding machine drive connection three-level generator 304, three level steam turbines 303 or expanding machine are rotated into mechanical energy conversion For the electric energy of three-level generator 304, generating efficiency is improved.In addition, three level steam turbines 303 or expanding machine can be with drive connections Other rotation apparatuses.

Preferably, the 3rd medium of circulation becomes phase medium, namely the 3rd medium for gas-liquid in the environmental protection and energy saving electricity generation system The conversion of gas phase and liquid phase is carried out in the environmental protection and energy saving electricity generation system.For the cooling effect for the flue gas for making flue condenser 507 More preferably, it is preferable that cryogenic fluid compressor 301 compress the 3rd medium and through heat exchanger 302 cool down after the 3rd medium all or Person part is in a liquid state, and the 3rd medium discharges pressure and in whole or portion after flowing through three-level steam turbine 303 or expanding machine acting Divide gaseous state.

Compressed to preferably store through cryogenic fluid compressor 301 and through all or part of of the cooling of heat exchanger 302 The 3rd medium being in a liquid state, three-level cryogenic fluid is connected between three level steam turbines 303 or expanding machine and heat exchanger 302 Memory 305.

Wherein, the 3rd medium for example can be carbon dioxide, ammonia, helium, hydrogen, oxygen, argon, nitrogen or freon；Certainly, the 3rd Medium can also be other cryogenic medias.Preferably, the 3rd medium is carbon dioxide.

Flue condenser 507 cools down boiler by coming from the 3rd medium that three level steam turbines 303 or expanding machine are exported Flue gas in flue, and the 3rd medium is delivered to cryogenic fluid compressor 301, realize circulation.

In the alternative of the present embodiment, the environmental protection and energy saving electricity generation system is included at the cryogenic fluid that head and the tail are sequentially communicated Manage memory 201, two-stage supercharging pump 202, one-level condenser 104, second turbine 203, two grades of condensers 204 and two grades solidifying Pump 205 is tied, circulation loop is formed.

The second medium of the cryogenic fluid processing memory storage of memory 201 is delivered to one-level condensing by two-stage supercharging pump 202 Device 104, for cooling down the exhaust steam for the first turbine 102 for flowing through one-level condenser 104, and is delivered to second turbine 203, with Second turbine 203 is driven to rotate；The medium that wherein second turbine 203 is exported is second medium；Preferably, two grades of steamers The drive connection secondary generator 206 of machine 203, two are converted into the heat energy to a certain extent by the exhaust steam of first turbine 102 The electric energy of level generator 206, improves generating efficiency.In addition, second turbine 203 can be with other rotation apparatuses of drive connection.

Preferably, the second medium of circulation becomes phase medium, namely second medium for gas-liquid in the environmental protection and energy saving electricity generation system The conversion of gas phase and liquid phase is carried out in the environmental protection and energy saving electricity generation system.To make the first turbine 102 of one-level condenser 104 The cooling effect of exhaust steam is more preferably, it is preferable that cryogenic fluid processing the memory storage of memory 201 second medium be in whole or in part Liquid, the exhaust steam that second medium flows through one-level condenser 104 and first turbine 102 is carried out after heat exchange, second medium heating In all or part of gaseous state；Meanwhile, the second medium for flowing through one-level condenser 104 is in all or part of liquid endothermic disintergration For in all or part of gaseous state, the second medium of high pressure can be formed in specific environment, so as to drive second turbine 203 Acting.

Two grades of condensers 204 are used for the second medium for cooling down the output of second turbine 203, and second medium is passed through into two grades Pump 205 is condensed to be delivered in cryogenic fluid processing memory 201.Preferably, after second medium is cooled down by two grades of condensers 204 In in all or part of liquid reflux to cryogenic fluid processing memory 201, circulation is realized.Those skilled in the art can manage After solution, two grades of cooling second mediums of condenser 204, caused very in the exhaust outlet of second turbine 203 to a certain extent Sky, is done work so that heat energy contained by second medium is as much as possible by second turbine 203.

Environmental protection and energy saving electricity generation system described in the present embodiment, the second of the memory storage of memory 201 is handled by cryogenic fluid Medium is delivered to one-level condenser 104 by two-stage supercharging pump 202, to cool down the first turbine for flowing through one-level condenser 104 102 exhaust steam, by the heat energy displacement in the exhaust steam of first turbine 102 to second medium；Second medium is absorbed after heat energy Drive second turbine 203 to rotate, the heat energy of second medium is converted into the rotating mechanical energy of second turbine 203；Pass through two again The second medium that the level cooling second turbine 203 of condenser 204 is exported, and second medium is defeated by two grades of condensation pumps 205 Deliver in cryogenic fluid processing memory 201, realize circulation.Relative in the prior art, using modes such as water cooling or air coolings Cooling flows through the exhaust steam of the first turbine 102 (namely steam turbine of the prior art) of one-level condenser 104, will accumulate in exhaust steam The evaporation heat energy of Tibetan is discharged by cooling systems such as cooling tower, air cooling systems, have lost extremely large number heat energy；This environmental protection is saved The second medium cooling that energy electricity generation system is handled by cryogenic fluid in memory 201 flows through the one-level vapour of one-level condenser 104 The exhaust steam of turbine 102, so that second medium absorbs heat and drives second turbine 203 to rotate, effectively turns the heat energy in exhaust steam The rotating mechanical energy of second turbine 203 is turned to, the heat energy in exhaust steam can be effectively utilized.

It should be noted that the electricity generation system such as existing thermal power station, nuclear power station and biomass power generation plant, is all using burning Become the thermo-mechanical power generation technology of high temperature and high pressure steam with heating water, this mode is present main power generation mode.It is existing to generate electricity System condenses pump 105, one-level including the boiler 101 being sequentially communicated from beginning to end, first turbine 102, one-level condenser 104, one-level Oxygen-eliminating device 106 and one-level booster pump 107, and form circulation loop；Wherein, the drive connection one-level generator of first turbine 102 103, so that one-level generator 103 generates electricity.First turbine 102 is promoted to revolve at a high speed for example, boiler 101 produces high temperature and high pressure steam Turn after acting, be turned into the exhaust steam of low-temp low-pressure, about 30 DEG C or so of exhaust steam temperature, pressure 10Kpa or so contains super a large amount of Evaporation latent heat energy.It is input to one-level condenser 104 to be condensed, discharges super substantial amounts of evaporation latent heat energy.

Existing one-level condenser 104 carries out the cooling such as air cooling using water cooling or cold wind and flows through one-level condenser 104 The exhaust steam of first turbine 102.Generally building has very thick cement cooling tower or throwing huge fund construction air cooling system, by one-level steamer The heat energy of the exhaust steam displacement of machine 102 is dispersed into air.Quite big energy will be all lost in the cooling tower and air cooling system, thick cold But tower or the continual work of air cooling system, every year by the super substantial amounts of energy of emission loss, while using cooling tower cooler skill Art is also possible to be lost in super great lot of water resources.In addition, work is circulated year in year out using the cooling system of water cooling, in one-level condensing The tube wall of device 104 will have precipitation of scales, the heat exchange efficiency of one-level condenser 104 will be reduced, while salinity and acid-base pair one in water The level pipeline of condenser 104 and pipe joint have very strong corrosion, easily cause corrosive pipeline perforation, occur recirculated cooling water and enter Enter the serious accident to vapour system.In addition：One-level condenser 104 in the winter time, because outside air temperature is low, so one-level vapour The exhaust steam condensation effect that turbine 102 is exported is very good.But under the hot environment in summer, first turbine 102 is exported Such as 30 DEG C or so of exhaust steam, outside air temperature also reaches 30 degrees centigrades, and the operating efficiency of one-level condenser 104 may be by Substantially reduction, will may cause in the peak period of summer electricity consumption, and the generating set efficiency in power plant declines and situation not to power. Such case, it is either clammy air-cooled with air cooling system using cooling tower, this problem can all occur.

And environmental protection and energy saving electricity generation system described in the present embodiment, the exhaust steam that exports enters one after first turbine 102 does work Level condenser 104, the cooling system of one-level condenser 104 uses second medium, and such as liquid CO 2 working medium carries out one The condensation work for the exhaust steam that level steam turbine 102 is exported.The second mediums such as selection low-temperature carbon dioxide liquid are condensed, in theory Have further the advantage that：

1st, the cooling tower or air cooling system not released energy externally can be realized, these coolings is not only eliminated and sets It is standby, while the various fan and energy that save in theory in the substantial amounts of land seizure in power plant and cooling system disappear Consumption.

2nd, existing electricity generation system is in torridity summer, because cooling tower and Air-Cooling Island are easily influenceed by high temperature, circulating cooling The temperature of water and air is higher, causes condenser condensation effect poor, has a strong impact on the generating efficiency of generating set, torridity summer It is peak of power consumption, generating set does not give power but.Environmental protection and energy saving electricity generation system described in the present embodiment, can be realized in sweltering heat in theory Summer and cold winter, all equipment working states are all substantially identical, even hot summer equipment also according to Often generate electricity.

3rd, the temperature of second medium is relatively low, therefore also will be on the effect theory of progress first turbine 102 exhaust steam condensation Highly significant, identical condensation number can reduce the heat exchange area of one-level condenser 104 and volume in theory, save valuable lead Hot material, and then the manufacturing cost of one-level condenser 104 can be reduced in theory.Simultaneously in carbon dioxide liquid working medium etc. the In second medium, without harmful substances such as the scale sediments and soda acid in former recirculating cooling water system, it can not only extend one-level The service life of condenser 104, while the annual cleaning of one-level condenser 104 and maintenance workload can also be reduced greatly.

Cryogenic fluid compressor 301, heat exchanger 302, three level steam turbines 303 or expanding machine, two grades of head and the tail of condenser 204 It is sequentially communicated and forms circulation loop；That is cryogenic fluid compressor 301, heat exchanger 302, three level steam turbines 303 and two grades of condensings The head and the tail of device 204 are sequentially communicated and form circulation loop, or, cryogenic fluid compressor 301, heat exchanger 302, expanding machine and two grades The head and the tail of condenser 204 are sequentially communicated and form circulation loop.It is understood that cryogenic fluid compressor 301, heat exchanger 302, Three level steam turbines 303 or expanding machine, two grades of condensers 204 constitute a complete refrigeration system.

Cryogenic fluid compressor 301 is used to compress the 3rd medium, and the 3rd medium is cooled down by heat exchanger 302, conveys To three level steam turbines 303 or expanding machine, to drive three level steam turbines 303 or expanding machine to rotate.Preferably, three level steam turbine 303 or expanding machine drive connection three-level generator 304, three level steam turbines 303 or expanding machine are rotated into mechanical energy conversion For the electric energy of three-level generator 304, generating efficiency is improved.In addition, three level steam turbines 303 or expanding machine can be with drive connections Other rotation apparatuses.

Preferably, the 3rd medium of circulation becomes phase medium, namely the 3rd medium for gas-liquid in the environmental protection and energy saving electricity generation system The conversion of gas phase and liquid phase is carried out in the environmental protection and energy saving electricity generation system.For the cooling for the second medium for making two grades of condensers 204 It is better, it is preferable that the 3rd medium after cryogenic fluid compressor 301 compresses the 3rd medium and cooled down through heat exchanger 302 is complete Portion or part be in a liquid state, the 3rd medium flow through three-level steam turbine 303 or expanding machine acting after release pressure and in all or Person part gaseous state.

Two grades of condensers 204 cool down two grades by coming from the 3rd medium that three level steam turbines 303 or expanding machine are exported The second medium that steam turbine 203 is exported, and the 3rd medium is delivered to cryogenic fluid compressor 301, realize circulation.

Heat exchanger 302 can be cooled down the heat that cryogenic fluid compressor 301 compresses the generation of the 3rd medium by cooling device, Alternatively, heat exchanger 302 is connected between two grades of condensation pumps 205 and cryogenic fluid processing memory 201, for by the 3rd medium Heat energy pass to second medium；The heat that i.e. the 3rd medium of the compression of cryogenic fluid compressor 301 is produced passes through two grades of condensation pumps Second medium between 205 and cryogenic fluid processing memory 201 is cooled down, and on the one hand simplifies the environmental protection and energy saving electricity generation system Structure, on the other hand reduces the loss of heat energy.

In theory due to the pressurization of two grades of condensation pumps 205, the second medium of thermal energy is obtained not by heat exchanger 302 Meeting reverse back is fed to two grades of condensers 204.It is merely able to the unidirectional cryogenic fluid that flows to and handles memory 201；Second medium passes through again Two-stage supercharging pump 202 is conveyed to one-level condenser 104 and reheated, the high pressure second medium Steam Actuation two produced in theory Level steam turbine 203 rotates at a high speed, so constantly circulation.

Alternatively, the level steam turbine 303 of 301 drive connection of cryogenic fluid compressor three or expanding machine, by by low temperature work The level steam turbine 303 of matter compressor 301 and three, or cryogenic fluid compressor 301 are coaxially disposed with expanding machine, so that three-level steamer The mechanical energy that machine 303 or expanding machine are produced, direct drive cryogenic fluid compressor 301, to save driving cryogenic fluid compression The generator of machine 301, saves the electric energy of the consumption of cryogenic fluid compressor 301.Cryogenic fluid compressor 301 is consumption electric energy, Three level steam turbines 303 or expanding machine are output mechanical energies.The effect of three level steam turbines 303 or expanding machine, is to discharge The pressure energy that cryogenic fluid compressor 301 is produced, equivalent to a pressure recycle system of cryogenic fluid compressor 301；So that Allow pressure energy to become the mechanical energy of three level steam turbines 303 or expanding machine output in certain circumstances, reach a kind of energy-saving effect And purpose, while obtaining the partial vacuum low pressure that three level steam turbines 303 or expanding machine are produced, advantageously reduce three level steam turbines 303 or expanding machine output the 3rd medium temperature, be conducive to two grades of condensers 204 to cool down and realize deep cooling.

In the alternative of the present embodiment, flue condenser 507 and two grades of condensers 204 can share cryogenic fluid compression Machine 301, heat exchanger 302, three level steam turbines 303 or expanding machine, can not also share cryogenic fluid compressor, heat exchanger, three Level steam turbine or expanding machine；In order to simplify structure, flue condenser 507 and two grades of condensers 204 share cryogenic fluid compression Machine 301, heat exchanger 302, three level steam turbines 303 or expanding machine, in other words, it is to be appreciated that flue condenser 507 with Two grades of condensers 204 are connected in cryogenic fluid compressor 301, heat exchanger 302, three level steam turbines 303 or expanding machine pipe in parallel In road.I.e.：Two grades of condensers 204 are connected between three level steam turbines 303 or expanding machine and cryogenic fluid compressor 301；Two Level condenser 204 cools down second turbine 203 by coming from the 3rd medium that three level steam turbines 303 or expanding machine are exported The second medium of output, and the 3rd medium is delivered to cryogenic fluid compressor 301.

In the alternative of the present embodiment, boiler flue is provided with compressor front end separator 503, compressor rear end Separator 506 and flue memory 509.

First chimney heat exchanger 502, compressor front end separator 503, flue fan-compressor 504, the second flue Heat exchanger 505, compressor rear end separator 506, flue condenser 507 and flue memory 509 are sequentially communicated.

Compressor front end separator 503 is used to separate, store flue gas in boiler flue.For example it can condense and separate The harmful substance such as sulfur dioxide and nitrogen oxides.

Compressor rear end separator 506 is used to separate, store flue gas in boiler flue.For example it can condense and separate The harmful substances such as sulfur dioxide.

Flue memory 509 is used to store flue gas in boiler flue.Preferably, the flue gas of boiler flue sequentially passes through compression The separation of machine front end separator 503, the compression of flue fan-compressor 504, point of compressor rear end separator 506 From, and flue condenser 507 condensation, the carbon dioxide for forming the higher all or part of liquid of purity is stored in flue In memory 509.

In the alternative of the present embodiment, boiler flue is provided with memory front end separator 508；Memory front end Separator 508 is connected between flue condenser 507 and flue memory 509, for separating, storing cigarette in boiler flue Gas.By memory front end separator 508, further to separate, filter flue gas in boiler flue, so that flue memory 509 memory storages as carbon dioxide purity it is higher.

In order to improve the service life of the first chimney heat exchanger 502, flue fan-compressor 504, boiler flue is provided with Initial filter equipment 501；Initial filter equipment 501 is connected between the chimney heat exchanger 502 of boiler 101 and first, for filtering boiler flue The one or more in sulphur, nitre and dust in interior flue gas.Initial filter equipment 501 can for example set for existing desulphurization denitration It is standby.

Environmental protection and energy saving electricity generation system described in the present embodiment can ban the chimney in hundreds of meters of power plant completely in theory, adopt With flue fan-compressor 504, come substitute chimney put a chimney on the stove and make the fire draw cigarette, drain flue gas, improve the function of burning condition.Due to power plant's cigarette More than 95% is all carbon dioxide in chimney, as long as the carbon dioxide compression condensation in chimney of electric plant is turned into titanium dioxide by us Carbon liquid body.Remaining sulfur dioxide, nitrogen oxides, pellet PM10, PM2.5 condensed again and classification processing just very Easily.The boiling point of sulfur dioxide is -10 DEG C, and the boiling point of carbon dioxide is -56.55 DEG C, that is to say, that sulfur dioxide in chimney Gas, is already separated before us in what heat exchange condensation process.Including nitrogen oxides, pellet PM10, PM2.5 are condensed also in former class liquid CO 2 condensation processes, and in last flue condenser 507, and Memory front end separator 508 etc. equipment is separated, and these impurity, which are brought together, targetedly to be located Reason just will be easily a lot.Especially those pellets PM10, PM2.5, the quality of impurity is very small, but endangers but pole Its big.Further, since the condensation temperature of sulfur dioxide only has -10 DEG C, so during flue gas is condensed, titanium dioxide Sulphur has been condensed and collected in theory, can not only save the equipment investment of power plant desulfurization denitration device, can also be by dioxy Change sulphur, which is collected, realizes refuse reclamation and sale.

Desulfurization is typically all to use chemical method after existing boiler flue denitration, and each link will have corresponding equipment Input, not only equipment cost is high, while also needing to constantly add chemical raw material in equipment running process, even if paying this The big cost of sample, and it also requires the cloud-kissing chimney of investment construction, also carbon dioxide and pellet PM10, PM2.5 is discharged, it is impossible to effected a radical cure.Environmental protection and energy saving electricity generation system described in the present embodiment is using traditional desulphurization denitration technology With physics condensation etc. method carry out desulphurization denitration, eradicate carbon dioxide and pellet PM10, PM2.5 discharge so that It can realize real " zero-emission, no pollution ".

It should be noted that the composition of coal includes organic matter and inanimate matter.Constitute coal organic matter element mainly have carbon, Hydrogen, oxygen, nitrogen and sulphur etc., in addition, the element such as also minimal amount of phosphorus, fluorine, chlorine and arsenic.Carbon, hydrogen, oxygen are the main bodys of coal organic matter Account for more than 95%.Mineral matter is the major impurity of coal, such as sulfide, sulfate, carbonate, and wherein most belongs to harmful Composition.China is using coal as main energy sources, and the 70% of national smoke discharge amount, the 90% of SO2 emissions both are from combustion Coal so that the city of industry and population concentration is generated than more serious atmosphere pollution, or even produce acid rain.These natural calamities Evil, has become an obstacle of sustainable development, is reducing our survival and development space.

Sulfur dioxide (SO₂), colourless gas, there is intense irritation smell, be one of Air Pollutant Discharge.Sulfur dioxide For sour gas, boiling point：-10℃；It is soluble in water, sulfurous acid (main component of acid rain) can be formed.If in catalyst (such as dioxy Change nitrogen) in the presence of, SO₂Further oxidation, will generate sulfuric acid (H₂SO₄).Pellet particle diameter is small, can enriched Toxic heavy metal, harmful organic substance and acid compound, the health hazard to the mankind are very big, and particularly particle diameter is less than 2.5 μm The influence that fine fraction is produced to human body and environment becomes apparent.PM10 is that aerodynamic diameter is less than or equal to 10 microns Particulate matter, PM2.5 is exactly one kind therein.PM10 long-term accumulateds can cause respiratory disease, such as shortness of breath, cough, induction Asthma, chronic bronchitis, chronic pneumonia etc..Because floating dust particle diameter is small, respiratory tract can be directly sucked in by people and caused harm；Thin Grain thing may trigger heart disease, tuberculosis, breathing problem, reduction PFT etc..Therefore, for old man, children and cardiopulmonary are had suffered from The sensitive group risk such as patient is larger.Again because it can be floated for a long time in an atmosphere, pollutant is easily taken to far place, led Pollution range is caused to expand, while in an atmosphere also reaction bed can be provided for chemical reaction.

Conventionally thermal power plant is all the high dirt arrangement+electricity of the outer SCR denitration of selection stove (the either electric bag of pocket type) dedusting+wet Method desulfurization, denitration is generally disposed between economizer and air preheater, and dedusting is arranged between air preheater and air-introduced machine, desulfurization cloth Put between air-introduced machine and chimney.But it has been not excluded for the outer SCR of SNCR denitration technology, stove in exception, such as dry desulfurization, stove Low dirt arrangement of denitration etc., denitration and desulfurization equipment are possible to position that can be opposite with the conventional upstream or downstream for being arranged in deduster Put.Also be exactly now in order to control PM2.5, wet dust removal gradually can popularization and application, be sequentially possible to and different.It is but above-mentioned These situations belong to special circumstances, using most still conventional order of placement.

Desulfurization is exactly to slough the SO in flue gas₂(sulfur dioxide), denitration is mainly the NOx (nitrogen oxidations sloughed in flue gas Thing), both materials, which enter air, can form acid rain, and harm of the acid rain to the mankind is very big, so country is carrying always now Environmental protection is advocated, the flue gas using coal as fuel all contains these materials, particularly thermal power plant, and thermal power plant is built now will be while build Desulfurization, country is not started in pressure also now for denitration.Power plant is usually denitration preceding, because denitration needs higher reaction temperature Degree.It is to be carried out within the temperature range of 900 DEG C -1100 DEG C using SNCR technology denitrations, typically in upper boiler flue region It is used as reacting environment；Using SCR denitration be after economizer, before air preheater, the temperature in this region 300 DEG C -400 DEG C it Between.And general desulfurization is after deduster, to be arranged so as to that the purity of desulfuration byproduct can be improved, increase desulfurated plaster Added value.

For the ease of understanding the present embodiment, some physical parameters and reference data is provided below：

1st, carbon dioxide physical property：- 56.55 DEG C of boiling point, 31 DEG C of critical-temperature, critical pressure 7.39MPa, vaporization is latent Hot 347kj/kg；

2nd, the physical property of ammonia：- 33.5 DEG C of boiling point, critical pressure 11.2MPa, 132.3 DEG C of critical-temperature, heat of vaporization 1336.97kj/kg；

3rd, the physical property of sulfur dioxide：- 72.4 DEG C of fusing point, -10 DEG C of boiling point；

4th, nitric acid：Physical property, -42 DEG C of fusing point, 83 DEG C of boiling point；

5th, the physical property of adjacent nitre：32.5 DEG C of fusing point, boiling point：246℃.

Alternatively, the environmental protection and energy saving electricity generation system described in the present embodiment, the HTHP that first can be produced boiler 101 steams Vapour, electrical power generators, tidal time difference output electric energy, the generating efficiency of one-level generating set are driven by first turbine 102 About 35%-38% or so, is kept substantially identical with the power generation situation in existing power station, power plant in theory.With existing power station, The cooling system of circulation one-level condenser 104 unlike power plant, one-level condenser 104 no longer uses recirculated cooling water, for example The second mediums such as the liquid CO 2 of the memory storage of memory 201 are handled using cryogenic fluid to be condensed.Work as first turbine When the exhaust steam of 102 discharges carry out heat exchange in one-level condenser 104 with the second medium such as the liquid CO 2 of low temperature, exhaust steam Can rapidly it be condensed under specific circumstances, while discharging the evaporation latent heat energy contained in exhaust steam.Liquid CO 2 The evaporation latent heat energy contained in exhaust steam absorbed by one-level condenser 104 Deng second medium, in theory volumetric expansion and pressure Increase sharply.According to data display, carbon dioxide Temperature of Working is 5 DEG C, and pressure reaches 3.969Mpa；10 DEG C of temperature, pressure 4.501Mpa；15 DEG C of temperature, pressure 5.085Mpa；20 DEG C of temperature, pressure 5.727Mpa；25 DEG C of temperature, pressure 6.432Mpa, this The huge pressure of sample, is fully able to promote second turbine 203 to rotate at a high speed in theory, converts heat under given conditions Rotating mechanical energy.If the drive connection secondary generator 206 of second turbine 203 is generated electricity, it is in low temperature that this electricity generation system, which is utilized, The second medium of liquid removes to absorb in one-level generating link the evaporation latent heat energy for the exhaust steam that first turbine 102 is exported and real Now generate electricity output, and the efficiency produced in theory can reach about 35% or so, and this is the second level using in the second of cryogenic liquid Medium does the power generation cycle of generating working medium.Because the evaporation latent heat energy contained in exhaust steam is very huge, account in theory total The half of energy, so energy output and contribution rate that this one-level generates electricity are also very huge.

Alternatively, the environmental protection and energy saving electricity generation system described in the present embodiment, can be by boiler 101, boiler flue, one-level steamer The cooling system of machine 102, changes to turn into and makees cooling system in the second medium of cryogenic liquid.To be in low with level Four booster pump 401 The second medium of geothermal liquid is transported to boiler 101, boiler flue and first turbine 102 from cryogenic fluid processing memory 201 Cooling system in.Cooled down using in the second medium of cryogenic liquid, effect is also obvious than water cooling effect in theory More preferably, while absorbing a large amount of of boiler 101, boiler flue and first turbine 102 in the second medium of cryogenic liquid in theory After thermal energy, the second medium steam such as high-pressure carbon dioxide can be turned into certain circumstances, it is defeated by pipe influx to together Give four level steam turbines 402 to make to rotate at a high speed, convert heat into rotating mechanical energy.If the drive connection four of four level steam turbine 402 Level generator 403 is generated electricity, and is not only able to effectively reduce the skin temperature of boiler 101, boiler smoke in certain circumstances in theory The temperature of road delivery temperature and the shell of first turbine 102, while boiler 101, boiler flue and one-level steamer can also be reduced The thermal energy loss of the shell of machine 102；And the energy that can also should lose these, is all collected by four Level steam turbine 402 is generated electricity and exported again, virtually can contribute 15%-25%'s again for electricity generation system in theory Generating efficiency, is so calculated, and a whole set of electricity generation system can reach 90% or so even more high in theory in certain circumstances Generating efficiency.Environmental protection and energy saving electricity generation system described in the present embodiment, whole system there is no energy loss in theory Place, without cooling tower and Air-Cooling Island, even the body of heater of boiler 101, the casing of the equipment such as boiler flue and first turbine 102, Also Energy Recovery Technology is all employed, so the efficiency of this electricity generation system is theoretically, almost 100% generating can be reached Efficiency, in theory energy-saving effect should say clearly, it is more important in the age of present energy shortage.While this electricity generation system Large ship turbine system and the other application driven based on steam turbine can also be widely used in.

The power stations such as existing heat power station, nuclear power station and biomass power generation plant spread all over the country and all over the world, invested It is all very huge, a heat power station construction investment needs several hundred million or even tens RMB, building a nuclear power station can It can need more than 10,000,000,000 RMB of investment.And the power station such as existing heat power station, nuclear power station and biomass power generation plant, adopt The exhaust steam of first turbine 102 is condensed with cooling systems such as air-cooled, water coolings, off-energy about 40%, is added in theory Boiler 101 and boiler flue loss 10%-20%, first turbine 102 and other equipment loss about 10% or so, so existing Thermal power generation system generating efficiency there was only 35%-40% or so in theory, many biomass power generations only have more than 20% in theory Efficiency.After technological transformation by the environmental protection and energy saving electricity generation system described in the present embodiment, originally one power plant just has very much There may be the generating efficiency and economic benefit for going out two power plants, but coal-fired and consumption nuclear fuel, but also it is original one Individual power plant.If the whole nation and all power plants in the whole world all carry out such technological transformation, it will save super a large amount of every year Coal and resource, while will also reduce the discharge of substantial amounts of carbon dioxide, sulfur dioxide etc. toxic and harmful gas, also simultaneously Substantial amounts of water resource can be saved, economic benefit and social benefit will more be had by building two power plants than straight investment. Carbon dioxide, the sulfur dioxide (SO2) emissions of pollution environment are reduced, the heat energy of atmospheric environment is discharged while reducing energy production world station. Atmosphere greenhouse effects can just be mitigated by reducing the hot driving of power plant year in year out, or even can reduce annual big flood hair It is raw, it really can be described as the good thing achieved many things at one stroke, it is also desirable to the technology energy of the environmental protection and energy saving electricity generation system described in the present embodiment It is enough really to contribute share and promote the well-being of mankind for human development.

The present embodiment additionally provides a kind of environmental protection and energy saving electrification technique, it is adaptable to described environmental protection and energy saving electricity generation system, bag Include following steps：

The second medium that is in a liquid state of the temperature less than -35 DEG C is delivered to boiler flue out of cryogenic fluid processing memory；

In boiler flue, temperature is about flue gas and temperature after second medium heat exchange in 150 DEG C -160 DEG C of boiler flue Degree drop to 20 DEG C -30 DEG C, while second medium heat absorption vaporization after temperature rise to 15 DEG C -25 DEG C, pressure rise to about 4.5MPa with Go up and be delivered to four level steam turbines；Namely second medium increasing temperature and pressure in boiler flue.

Second medium drive four level steam turbines rotate acting after, temperature be down to less than about -35 DEG C, pressure be down to about 0.5MPa Below and it is delivered to two grades of condensers；Namely second medium decrease temperature and pressure after four level steam turbines.

The second medium temperature that is cooled in two grades of condensers is down to less than -50 DEG C, and is delivered to cryogenic fluid and handles and deposit In reservoir, circulation is formed.

Alternatively, the first chimney heat exchanger and the second chimney heat exchanger being sequentially connected are provided with boiler flue, namely Boiler flue is through second medium secondary cooling.Alternatively, in the first chimney heat exchanger, temperature is about the of 150 DEG C -160 DEG C Temperature drop is to about 30 DEG C after flue gas and second medium heat exchange in one chimney heat exchanger, while warm after second medium heat absorption vaporization Degree rises to about 30 DEG C, pressure rises to about more than 5MPa and be delivered to four level steam turbines；Namely second medium is in the first flue heat exchange Increasing temperature and pressure in device.Alternatively, in the second chimney heat exchanger, temperature is cigarette in 100 DEG C -120 DEG C of the second chimney heat exchanger Gas is with temperature drop after second medium heat exchange to about 30 DEG C, while second medium absorbs heat, temperature rises to about 30 DEG C, pressure after vaporization Power rises to about more than 5MPa and is delivered to four level steam turbines；Namely second medium increasing temperature and pressure in the second chimney heat exchanger.

Embodiment two

Embodiment two provides a kind of power station, and the embodiment includes the environmental protection and energy saving electricity generation system described in embodiment one, The technical characteristic of environmental protection and energy saving electricity generation system disclosed in embodiment one is also applied for the embodiment, the published ring of embodiment one Description is not repeated in the technical characteristic for protecting energy-saving power generation system.

Referring to shown in Fig. 1-Fig. 4, the power station that the present embodiment is provided, including described environmental protection and energy saving electricity generation system.It is described Power station can for example include multiple environmental protection and energy saving electricity generation systems.

Power station described in the present embodiment has the advantages that environmental protection and energy saving electricity generation system described in embodiment one, the institute of embodiment one Description is not repeated in the advantage of the disclosed environmental protection and energy saving electricity generation system herein.

Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims

1. a kind of environmental protection and energy saving electricity generation system, it is characterised in that handle memory, four including the cryogenic fluid that head and the tail are sequentially communicated Level booster pump, device to be cooled, four level steam turbines, two grades of condensers and two grades of condensation pumps；The device to be cooled include boiler, One or more in first turbine and boiler flue；

The level Four booster pump is used to making the second medium of cryogenic fluid processing memory memory storage to be delivered to described treating cold But device, so that the device cooling to be cooled；

The second medium for flowing through the device to be cooled is delivered to four level steam turbine, to drive four level steam turbine Rotate；

Two grades of condensers are used for the medium for cooling down second turbine output, and the second medium is solidifying by described two grades Knot pump is delivered in the cryogenic fluid processing memory.

2. environmental protection and energy saving electricity generation system according to claim 1, it is characterised in that the boiler flue is provided with the first cigarette Road heat exchanger；First chimney heat exchanger is used to connect boiler；

First chimney heat exchanger is connected between the level Four booster pump and four level steam turbine, for by the boiler The heat energy of flue gas passes to the second medium in flue.

3. environmental protection and energy saving electricity generation system according to claim 2, it is characterised in that the boiler flue is provided with the second cigarette Road heat exchanger；The boiler, first chimney heat exchanger and second chimney heat exchanger are sequentially communicated；

Second chimney heat exchanger is connected between the level Four booster pump and four level steam turbine, for by the boiler The heat energy of flue gas passes to the second medium in flue.

4. environmental protection and energy saving electricity generation system according to claim 3, it is characterised in that the boiler flue is provided with flue wind Machine compressor and flue condenser；First chimney heat exchanger, the flue fan-compressor, second chimney heat exchanger It is sequentially communicated with the flue condenser；

5. environmental protection and energy saving electricity generation system according to claim 4, it is characterised in that including cryogenic fluid compressor and heat exchange Device, in addition to three level steam turbines or expanding machine；

The cryogenic fluid compressor, the heat exchanger, three level steam turbine or the expanding machine, the flue condenser Head and the tail are sequentially communicated and form circulation loop；

The cryogenic fluid compressor is used to compress the 3rd medium, and the 3rd medium is cooled down by the heat exchanger, defeated Three level steam turbine or the expanding machine are delivered to, to drive three level steam turbine or the expanding machine to rotate；

The flue condenser is cold by coming from the 3rd medium that three level steam turbine or the expanding machine are exported Flue gas in the boiler flue, and the 3rd medium is delivered to the cryogenic fluid compressor；

6. environmental protection and energy saving electricity generation system according to claim 5, it is characterised in that also coagulated including two-stage supercharging pump, one-level Vapour device and second turbine；

It is cryogenic fluid processing memory, the two-stage supercharging pump, the one-level condenser, the second turbine, described Two grades of condensers and two grades of condensation pumps head and the tail are sequentially communicated and form circulation loop；

The second medium of the cryogenic fluid processing memory memory storage is delivered to the one-level by the two-stage supercharging pump and coagulated Vapour device, for cooling down the exhaust steam for the first turbine for flowing through the one-level condenser, and is delivered to the second turbine, to drive Rotate the second turbine；

Two grades of condensers are connected between three level steam turbines or the expanding machine and the cryogenic fluid compressor； Two grades of condensers cool down institute by coming from the 3rd medium that three level steam turbine or the expanding machine are exported The second medium of second turbine output is stated, and the 3rd medium is delivered to the cryogenic fluid compressor.

7. environmental protection and energy saving electricity generation system according to claim 4, it is characterised in that the boiler flue is provided with compressor Front end separator, compressor rear end separator and flue memory；

First chimney heat exchanger, compressor front end separator, the flue fan-compressor, second cigarette Road heat exchanger, compressor rear end separator, the flue condenser and the flue memory are sequentially communicated；

The flue memory is used to store flue gas in the boiler flue.

8. environmental protection and energy saving electricity generation system according to claim 7, it is characterised in that the boiler flue is provided with memory Front end separator；Memory front end separator be connected to the flue condenser and the flue memory it Between, for separating, storing flue gas in the boiler flue.

9. environmental protection and energy saving electricity generation system according to claim 2, it is characterised in that the boiler flue is provided with initial filter and set It is standby；The initial filter equipment is connected between the boiler and first chimney heat exchanger, for filtering in the boiler flue The one or more in sulphur, nitre and dust in flue gas.

10. a kind of power station, it is characterised in that including the environmental protection and energy saving electricity generation system described in claim any one of 1-9.