CN105332865B - Tower type solar and coal-burning boiler photothermal cogeneration system - Google Patents
Tower type solar and coal-burning boiler photothermal cogeneration system Download PDFInfo
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- CN105332865B CN105332865B CN201410382170.0A CN201410382170A CN105332865B CN 105332865 B CN105332865 B CN 105332865B CN 201410382170 A CN201410382170 A CN 201410382170A CN 105332865 B CN105332865 B CN 105332865B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 238000013021 overheating Methods 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 54
- 230000008676 import Effects 0.000 claims description 44
- 230000004087 circulation Effects 0.000 claims description 15
- 239000003245 coal Substances 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010248 power generation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Abstract
The invention discloses a kind of tower type solars and coal-burning boiler photothermal cogeneration system, are related to tower type solar photothermal cogeneration field, to realize the photothermal cogeneration of tower type solar and coal-burning boiler.The system includes coal-burning boiler, tower type solar heat collector and high pressure cylinder；The water inlet of coal-burning boiler and the entrance of tower type solar heat collector are all connect with the water outlet of high-pressure heater, and the boiler overheating steam outlet of coal-burning boiler and the tower type solar heat collector superheated steam outlet of tower type solar heat collector are all connect with the entrance of high pressure cylinder.Above-mentioned technical proposal realizes the photothermal cogeneration of tower type solar and coal-burning boiler.
Description
Technical field
The present invention relates to tower type solar photothermal cogeneration fields, and in particular to a kind of tower type solar and coal-burning boiler photo-thermal
Co-generation system.
Background technique
In the past more than ten years, the utilization of solar energy is concentrated mainly on field of photovoltaic power generation.In recent years, solar energy optical-thermal
Generation technology has obtained significant progress, but predominantly trough system, few to tower type solar photo-thermal power generation technical research.
However, tower type solar photo-thermal power generation has oneself unique advantage, the steam quality of generation is higher.Therefore, it increases to tower
The research of solar light-heat power-generation technology is of great significance.
Since tower type solar photo-thermal power generation is by intensity of illumination and regional limitation, tower type solar light is individually used
Hot generation technology is not able to satisfy our daily demands.
Summary of the invention
One of purpose of the invention is to propose a kind of tower type solar and coal-burning boiler photothermal cogeneration system, to reality
The photothermal cogeneration of existing tower type solar and coal-burning boiler.
To achieve the above object, the present invention provides following technical schemes:
The present invention provides a kind of tower type solars and coal-burning boiler photothermal cogeneration system, wherein including tower type solar
Heat collector, coal-burning boiler, steam turbine；
The entrance of the water inlet of the coal-burning boiler and the tower type solar heat collector is all connected with water inlet, the fire coal
The boiler overheating steam of boiler exports and the tower type solar heat collector superheated steam of the tower type solar heat collector exports all
It is connect with the high pressure cylinder entrance of the steam turbine.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that further include booster pump and height
Press heater；
The entrance of the water inlet of the coal-burning boiler and the tower type solar heat collector all with the high-pressure heater
Water outlet connection；
The booster pump be arranged in the high-pressure heater water outlet and the tower type solar heat collector entrance it
Between.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that further include vapour vapour heat exchanger；
There is the vapour vapour heat exchanger superheated steam import, exhaust steam pipeline entrance, exhaust steam pipeline outlet and unsaturated water to go out
Mouthful, the unsaturated water outlet of the superheated steam import of the vapour vapour heat exchanger and the vapour vapour heat exchanger, the vapour vapour changes
The exhaust steam pipeline outlet of the exhaust steam pipeline entrance of hot device and the vapour vapour heat exchanger；
The tower type solar heat collector of the superheated steam import of the vapour vapour heat exchanger and the tower type solar heat collector
The unsaturated water outlet of superheated steam outlet connection, the vapour vapour heat exchanger is connect with the entrance of the booster pump；The vapour vapour
The exhaust steam pipeline entrance of heat exchanger and the high pressure cylinder of the steam turbine are exported and are connected, the exhaust steam pipeline outlet of the vapour vapour heat exchanger
It is connect with the vapor inlet port of the coal-burning boiler.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that the vapour vapour heat exchanger packet
Include outer cover of heat exchanger and exhaust steam pipeline；
One end of the outer cover of heat exchanger offers superheated steam import, and the other end of the outer cover of heat exchanger offers not
It is saturated water out；
The exhaust steam pipeline passes through the inside of the outer cover of heat exchanger.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that in the outer cover of heat exchanger
Portion is provided with partition, and the quantity of the partition is at least one piece；
Between the superheated steam import and unsaturated water outlet, the partition is used in institute for the partition setting
It states and is formed with circulation passage between superheated steam import and unsaturated water outlet；
Wherein, the circulation passage directly formed between the superheated steam import and unsaturated water outlet is shorter than described
The circulation passage formed between superheated steam import and unsaturated water outlet via the partition.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that the partition is plate knot
Structure, the partition intersect with the exhaust steam pipeline, and the through-hole for passing through the exhaust steam pipeline is provided on the partition.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that the partition is at least two
Block, each partition are arranged in parallel；
The heat exchanger of one of close superheated steam import side in two pieces of adjacent partitions
Outer casing inner wall setting, and deposited between the partition and the outer cover of heat exchanger inner wall of close unsaturated water outlet side
In gap；Another piece close to the unsaturated water outlet side the outer cover of heat exchanger inner wall setting, and the partition with
There are gaps between the outer cover of heat exchanger inner wall of the superheated steam import side.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that further include water tank；
The water tank is arranged between the unsaturated water outlet of the vapour vapour heat exchanger and the entrance of the booster pump.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that further include water circulating pump；
The water circulating pump is arranged between the water tank and the entrance of the booster pump.
Tower type solar as described above and coal-burning boiler photothermal cogeneration system, it is preferred that the coal-burning boiler also has
There is reheated steam outlet, the reheated steam outlet is connect with the entrance of the intermediate pressure cylinder of the steam turbine and low pressure (LP) cylinder；
The high pressure cylinder outlet of the steam turbine is connect with the vapor inlet port of the coal-burning boiler.
Based on the above-mentioned technical proposal, the embodiment of the present invention at least can produce following technical effect:
Above-mentioned technical proposal, by the boiler overheating steam outlet of coal-burning boiler, the tower sun of tower type solar heat collector
The outlet of energy heat collector superheated steam is all connect with the entrance of the high pressure cylinder, and superheated steam does work together in high pressure cylinder.It is above-mentioned
Solar energy is combined with conventional coal-fired power plant, using the big advantage of fired power generating unit adjusting range, saves the sun by technical solution
Hold over system and turbine system in energy photo-thermal power generation achieve the purpose that reduce cost of electricity-generating, realize continuous and stable electric generation.Together
When, compared with other renewable energy, carrier of the solar light-heat power-generation system using heat as intermediate energy is allowed to opposite to hold
It changes places and is coupled by heat and coal generating system.In addition, the peak value of solar radiation is in summer and daytime, just with electricity consumption
Peak value is corresponding, so as to efficiently reduce the pressure of peak load regulation network.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the principle signal of the tower type solar that the embodiment of the present invention one provides and coal-burning boiler photothermal cogeneration system
Figure；
Fig. 2 is the principle signal of tower type solar provided by Embodiment 2 of the present invention and coal-burning boiler photothermal cogeneration system
Figure；
Fig. 3 is the vapour vapour heat exchanger applications that provide of the embodiment of the present invention three in tower type solar and coal-burning boiler photothermal cogeneration
Schematic diagram in system；
Fig. 4 is the schematic cross-sectional view of vapour vapour heat exchanger in the embodiment of the present invention three；
Fig. 5 is Fig. 4 left view；
Fig. 6 is the A-A of Fig. 4 to schematic cross-sectional view；
Fig. 7 is the B-B direction schematic cross-sectional view of Fig. 4；
Fig. 8 is the schematic diagram of partition in Fig. 4；
Appended drawing reference:
1, final stage height adds outlet 2, coal-burning boiler water supply；3, solar thermal collector branch water supply；
Water supply；
4, coal-burning boiler；5, booster pump；7, solar energy superheated steam；
6, tower type solar collection 9, high pressure cylinder steam exhaust；10, coal-burning boiler superheated steam；
Hot device；
8, high pressure cylinder；11, vapour vapour heat exchanger；13, vapour vapour heat exchanger exit steam exhaust；
12, water tank；16, water circulating pump；15, solar thermal collector water supply；
20, superheated steam；18, tower type solar superheated steam acting part；
17, unsaturated water；19, tower type solar superheated steam vapour vapour heat exchanger section；
21, outer cover of heat exchanger；22, exhaust steam pipeline；23, superheated steam import；
25, partition；24, unsaturated water exports；26, through-hole；
27, total steam exhaust；28, vapour vapour heat exchanger high-voltage cylinder steam exhaust import；
29, the cylinder steam exhaust of vapour vapour heat exchanger high-voltage exports.
Specific embodiment
Technical solution provided by the invention is illustrated in more detail below with reference to FIG. 1 to FIG. 8, the present invention is provided
Any technological means be replaced or any two or more technical means or technical features provided by the invention are mutual
Technical solution obtained from being combined should be within protection scope of the present invention.
Embodiment one
Referring to Fig. 1, the embodiment of the present invention provides a kind of tower type solar and coal-burning boiler photothermal cogeneration system includes fire coal
Boiler 4, tower type solar heat collector 6 and high pressure cylinder 8.The entrance of the water inlet of coal-burning boiler 4 and tower type solar heat collector 6 is all
Connect with water inlet, specifically connect herein with the water outlet of high-pressure heater, the outlet of the boiler overheating steam of coal-burning boiler 4 with it is tower
The tower type solar heat collector superheated steam outlet of solar thermal collector 6 is all connect with the entrance of the high pressure cylinder of steam turbine 8.
Above-mentioned tower type solar and coal-burning boiler photothermal cogeneration system, using the section components in traditional coal-burning boiler system
It is combined with the section components in tower type solar solar-thermal generating system, to realize photothermal cogeneration.Coal-burning boiler system is mainly by firing
The structure compositions such as coal burning boiler 4, steam turbine, in which: the coal-burning boiler 4 in coal-burning boiler system is common boiler, and steam turbine is
Common back pressure turbine.Tower type solar heat collector 6 play by 6 water supply of tower type solar heat collector heating become it is tower too
The effect of positive energy superheated steam.
Referring to Fig. 1, the water supply 1 of outlet is added to divide for two parts from final stage height, a part enters coal-burning boiler 4, another portion
Divide and enter tower type solar heat collector 6, can specifically be entered back into after the pressurization of booster pump 5.Water supply coal-burning boiler 4 and it is tower too
Heat absorption becomes superheated steam in positive energy heat collector 6, and the superheated steam and tower type solar heat collector 6 that coal-burning boiler 4 generates generate
Superheated steam mixing it is latter with enter high pressure cylinder 8 do work.Arrow in Fig. 1 illustrates gas and water during photothermal cogeneration
Flow direction.
Above-mentioned technical proposal, by the outlet of the boiler overheating steam of coal-burning boiler 4, tower type solar heat collector 6 it is tower too
The outlet of positive energy heat collector superheated steam is all connect with the entrance of high pressure cylinder 8, and superheated steam does work together in high pressure cylinder 8.It is above-mentioned
Solar energy is combined with conventional coal-fired power plant, using the big advantage of fired power generating unit adjusting range, saves the sun by technical solution
Hold over system and turbine system in energy photo-thermal power generation achieve the purpose that reduce cost of electricity-generating, realize continuous and stable electric generation.Together
When, compared with other renewable energy, carrier of the solar light-heat power-generation system using heat as intermediate energy is allowed to opposite to hold
It changes places and is coupled by heat and coal generating system.In addition, the peak value of solar radiation is in summer and daytime, just with electricity consumption
Peak value is corresponding, so as to efficiently reduce the pressure of peak load regulation network.
Further, coal-burning boiler 4 also has a reheated steam outlet, and reheated steam exports and the intermediate pressure cylinder of steam turbine and low
The entrance of cylinder pressure connects.The outlet of the high pressure cylinder 8 of steam turbine is connect with the vapor inlet port of coal-burning boiler 4.
Coal-burning boiler 4 is again introduced into the steam that high pressure cylinder 8 finishes function to absorb heat, and is become after reheated steam again by middle pressure
Cylinder and low pressure (LP) cylinder acting.
Further, tower type solar and coal-burning boiler photothermal cogeneration system further include booster pump 5 and high-pressure heater.Combustion
The water inlet of coal burning boiler 4 and the entrance of tower type solar heat collector 6 are all connect with the water outlet of high-pressure heater.Booster pump 5 is set
It sets between the water outlet of high-pressure heater and the entrance of tower type solar heat collector 6.Booster pump 5 primarily serves as solar energy collection
The effect that hot device branch water supply 3 is pressurized.
As shown in Figure 1, dividing from the water supply 1 that final stage height adds for coal-burning boiler water supply 2 and solar thermal collector branch water supply
3；Coal-burning boiler water supply 2 is absorbed heat in coal-burning boiler 4 becomes coal-burning boiler superheated steam 10；Solar thermal collector branch water supply 3
Lead to tower type solar heat collector 6 after the pressurization of booster pump 5 to absorb heat, becomes solar energy superheated steam 7 later；Solar energy overheat is steamed
Vapour 7 and coal-burning boiler superheated steam 10 lead to high pressure cylinder 8 after mixing and do work；The high pressure cylinder steam exhaust 9 of function is finished in high pressure cylinder 8 again
After secondary entrance coal-burning boiler 4 heat absorption becomes reheated steam, continues to lead to intermediate pressure cylinder and low pressure (LP) cylinder does work.
Embodiment two
Referring to fig. 2, the embodiment of the present invention is on the technical solution basis of above-described embodiment, further, the tower sun
It can further include vapour vapour heat exchanger 11 with coal-burning boiler photothermal cogeneration system；Vapour vapour heat exchanger 11 has superheated steam import C, steam exhaust
Entrance D, exhaust steam pipeline outlet E and unsaturated water export F, and the superheated steam import C and vapour vapour of vapour vapour heat exchanger 11 exchange heat
The unsaturated water outlet F of device 11, the exhaust steam pipeline entrance D and the exhaust steam pipeline of vapour vapour heat exchanger 11 of vapour vapour heat exchanger 11 go out
Mouth E connection.The superheated steam import C of vapour vapour heat exchanger 11 also with the tower type solar heat collector mistake of tower type solar heat collector 6
The unsaturated water outlet F of hot steam outlet connection, vapour vapour heat exchanger 11 is connect with the entrance of booster pump 5；Vapour vapour heat exchanger 11
Exhaust steam pipeline entrance D is connect with the outlet of high pressure cylinder 8, the steam of exhaust steam pipeline the outlet E and coal-burning boiler 4 of vapour vapour heat exchanger 11
Input port connection.
The effect of vapour vapour heat exchanger 11 are as follows: by the steam exhaust exported by high pressure cylinder 8 and part tower type solar superheated steam
Heat exchange so that part tower type solar superheated steam become unsaturated water, 4 high pressure cylinder 8 of coal-burning boiler outlet it is weary
Stripping temperature increases, and quality parameter improves.
Referring to fig. 2, tower type solar and coal-burning boiler photothermal cogeneration system further include water tank 12；Water tank 12 is arranged in vapour vapour
The unsaturated water of heat exchanger 11 exports between the entrance of booster pump 5.Water tank 12 plays the role of storing recirculated water.
Referring to fig. 2, tower type solar and coal-burning boiler photothermal cogeneration system further include water circulating pump 16；Water circulating pump 16 is set
It sets between water tank 12 and the entrance of booster pump 5.Water circulating pump 16 plays the role of pressurizeing recirculated water.
Referring to fig. 2, the water supply 1 of outlet is added to divide for coal-burning boiler water supply 2, tower type solar tower type solar from final stage height
3 two parts of heat collector branch water supply, a part enters coal-burning boiler 4, after another part and unsaturated water 17 mix, through booster pump
Enter tower type solar heat collector 6 after 5 pressurizations.
Coal-burning boiler water supply 2 is absorbed heat in coal-burning boiler 4 becomes coal-burning boiler superheated steam 10, solar thermal collector water supply
15 absorb heat in tower type solar heat collector 6 becomes tower type solar superheated steam.
Tower type solar superheated steam is divided into tower type solar superheated steam acting part 18 and tower type solar overheat is steamed
19 two parts of vapour vapour vapour heat exchanger section, a part and coal-burning boiler superheated steam 10 enter high as superheated steam 20 after mixing
Cylinder pressure 8 does work, and another part enters vapour vapour heat exchanger 11.
Enter vapour vapour heat exchanger 11 in the steam exhaust that high pressure cylinder 8 finishes function, becomes vapour vapour after absorbing heat in vapour vapour heat exchanger 11
Heat exchanger exit steam exhaust 13 continues to lead to coal-burning boiler 4.
Tower type solar superheated steam vapour vapour heat exchanger section 19 becomes unsaturated water after heat release in vapour vapour heat exchanger 11,
After the enrichment of water tank 12, it is pressurized via water circulating pump 16, again returns to 5 import of booster pump.
Above-mentioned technical proposal overcomes the disadvantage of tower type solar steam quality deficiency；Overcome coal-burning power plant CO2Yield
Excessively high disadvantage；Overcome the seriously polluted disadvantage in coal-burning power plant；Single solar power station is overcome to need to establish hold over system
And the problem that cost is too high；Overcome the big problem of peak load regulation network pressure；Unit efficiency is improved, fire coal has been saved；Sufficiently benefit
With the solar energy resources of China's abundance.
Embodiment three
Referring to Fig. 3-Fig. 8, in the present embodiment, the vapour vapour heat exchanger 11 of tower type solar and coal-burning boiler photothermal cogeneration system
Unsaturated water export 24 direct circulations flow to booster pump 5.The outlet steam exhaust of the high pressure cylinder 8 of steam turbine is divided into two parts, and one
Lease making is entered in vapour vapour heat exchanger 11 by vapour vapour heat exchanger high-voltage cylinder steam exhaust import 28 (i.e. exhaust steam pipeline entrance D) and is heated
Processing, then by vapour vapour heat exchanger high-voltage cylinder steam exhaust outlet 29 (i.e. exhaust steam pipeline exports E) output；Another part steam exhaust without
Heat treatment, directly and the above-mentioned steam exhaust by heat treatment is aggregated into total steam exhaust 27 via the vapor inlet port of coal-burning boiler 4
It is logical to return in coal-burning boiler 4.
Following structures can be used in vapour vapour heat exchanger 11 employed in the present embodiment and above-described embodiment two.
Vapour vapour heat exchanger 11 includes outer cover of heat exchanger 21 and exhaust steam pipeline 22；One end of outer cover of heat exchanger 21 offers overheat
Steam inlet 23, the other end of outer cover of heat exchanger 21 offer unsaturated water outlet 24；Exhaust steam pipeline 22 passes through outer cover of heat exchanger
21 inside.
To improve heat transfer effect, outer cover of heat exchanger 21 is internally provided with partition 25, and the quantity of partition 25 is at least one piece.Every
Between superheated steam import 23 and unsaturated water outlet 24, partition 25 is used in superheated steam import 23 and does not satisfy the setting of plate 25
Circulation passage is formed between water out 24.Wherein, it is directly formed between superheated steam import 23 and unsaturated water outlet 24
Circulation passage be shorter than superheated steam import 23 and unsaturated water outlet 24 between via partition 25 formed circulation passage.
The circulation passage directly formed between superheated steam import 23 and unsaturated water outlet 24 refers to outer cover of heat exchanger 21
The circulation passage formed when being not provided with partition 25 between superheated steam import 23 and unsaturated water outlet 24, if to remove figure
From the point of view of partition 25 in 4, which is substantially straight.Superheated steam import 23 and unsaturated water outlet 24 between via every
The circulation passage that plate 25 is formed refers to that outer cover of heat exchanger 21 is located at superheated steam import 23 and unsaturated water exports and is arranged between 24
The circulation passage formed when having partition 25, shown in Fig. 4 from the point of view of, which is tortuous.
Partition 25 can be parallel to the setting of exhaust steam pipeline 22 or intersect setting with exhaust steam pipeline 22, preferably mutually hang down
Directly, it is hereinafter described.After partition 25 is arranged, the channel between superheated steam import 23 and unsaturated water outlet 24 is not single
One straight channel, but tortuous passageway can extend the length of flow of the superheated steam entered from superheated steam import 23 in this way,
To reinforce the heat exchange of superheated steam Yu 22 inside steam exhaust of exhaust steam pipeline.
Referring to fig. 4~Fig. 8, specifically, partition 25 are plate structure, and partition 25 intersects with exhaust steam pipeline 22, on partition 25
It is provided with the through-hole 26 for passing through exhaust steam pipeline 22.Between between the inner wall and exhaust steam pipeline 22 of through-hole 26 on partition 25
Gap answer it is smaller so that superheated steam can be flowed along the circulation passage that is formed between each partition 25.
Referring to fig. 4, partition 25 is at least two pieces, and each partition 25 is arranged in parallel.It is one of in two pieces of adjacent partitions 25
21 inner wall of outer cover of heat exchanger close to 23 side of superheated steam import is arranged, and the partition 25 and close unsaturated water export
There are gaps between 21 inner wall of outer cover of heat exchanger of 24 side；Another piece exports changing for 24 side close to unsaturated water
The setting of hot 21 inner wall of device shell, and the partition 25 and close to 23 side of superheated steam import 21 inner wall of outer cover of heat exchanger it
Between there are gaps.
Referring to fig. 4~Fig. 8, in the present embodiment, partition 25 is at least two pieces, and each partition 25 is arranged in parallel.Adjacent two pieces
In partition 25 one of close 23 side of superheated steam import 21 inner wall of outer cover of heat exchanger setting, and the partition 25 with
There are gaps between 21 inner wall of outer cover of heat exchanger that unsaturated water exports 24 side.Another piece goes out close to unsaturated water
21 inner wall of the outer cover of heat exchanger setting of 24 side of mouth, and the partition 25 and changing close to 23 side of superheated steam import
There are gaps between hot 21 inner wall of device shell.
Referring to fig. 4, outer cover of heat exchanger 21 is in cuboid or cylindrical-shaped structure.Exhaust steam pipeline 22 is along outer cover of heat exchanger 21
Length direction setting；Superheated steam import 23 and unsaturated water outlet 24 are located at the two of 21 length direction of outer cover of heat exchanger
End, and it is located at the two sides of 21 width direction of outer cover of heat exchanger.
Superheated steam and exhaust steam pipeline 22 to enter superheated steam import 23 sufficiently carry out heat exchange, superheated steam
Import 23 and unsaturated water outlet 24 are located at the both ends of 21 length direction of outer cover of heat exchanger, and are located at outer cover of heat exchanger
The two sides of 21 width directions.So set, making superheated steam and steam exhaust all needs to flow through the whole length ability of outer cover of heat exchanger 21
It can outflow.
Specifically, outer cover of heat exchanger 21 is in cuboid or cylindrical-shaped structure.Exhaust steam pipeline 22 is along outer cover of heat exchanger 21
Width direction setting；Superheated steam import 23 and unsaturated water outlet 24 are located at the two of 21 length direction of outer cover of heat exchanger
End, and it is located at the two sides of 21 length direction of outer cover of heat exchanger.
In the present embodiment, the cylindrical structure of outer cover of heat exchanger 21, the plate-like structure of 25 semicircular in shape of partition.
For convenient for exhaust steam pipeline 22 to be connect with other equipment to be connected, the both ends of exhaust steam pipeline 22 are all located at outside heat exchanger
The outside of shell 21.
Further, the quantity of exhaust steam pipeline 22 is at least two, and each exhaust steam pipeline 22 is arranged in parallel, and preferably straight tube
Structure, in order to install.The setting position of through-hole 26 is determined by each exhaust steam pipeline 22 on partition 25.
Above-mentioned technical proposal provides a kind of tower type solar especially for coal-burning power plant and economizes on coal with coal-burning power plant's photothermal cogeneration
System makes thermal power plant on the one hand save fire coal, on the other hand reduces the discharge of polluter.Meanwhile boiler controller system has
Good peak modulation capacity, the peak value of solar radiation is just corresponding with the peak value of electricity consumption in summer and daytime, so as to effective
Ground reduces the pressure of peak load regulation network, and whole day coal unit is in relatively stable load.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the present invention and simplified description for ease of description, rather than indicates or imply signified device
Or element must have a particular orientation, construct and operate for specific orientation, because should not be understood as in present invention protection
The limitation of appearance.
If the words such as " first ", " second " are used herein come if limiting components, those skilled in the art are answered
This knows: the use of " first ", " second " is intended merely to facilitate in description and is distinguished components as not having Stated otherwise
Outside, above-mentioned word has no special meaning.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (8)
1. a kind of tower type solar and coal-burning boiler photothermal cogeneration system, which is characterized in that including tower type solar heat collector, combustion
Coal burning boiler, steam turbine；
The entrance of the water inlet of the coal-burning boiler and the tower type solar heat collector is all connected with water inlet, the coal-burning boiler
Boiler overheating steam outlet and the tower type solar heat collector tower type solar heat collector superheated steam outlet all with institute
State the high pressure cylinder entrance connection of steam turbine；
The tower type solar and coal-burning boiler photothermal cogeneration system further include booster pump and high-pressure heater；The coal-burning boiler
Water inlet and the entrance of the tower type solar heat collector all connect with the water outlet of the high-pressure heater；The booster pump
It is arranged between the water outlet of the high-pressure heater and the entrance of the tower type solar heat collector；
The water supply added from final stage height is divided into coal-burning boiler water supply and solar thermal collector branch water supply；Coal-burning boiler water supply is in institute
Stating heat absorption in coal-burning boiler becomes coal-burning boiler superheated steam；The solar thermal collector branch water supply is pressurizeed through the booster pump
Lead to the tower type solar heat collector afterwards to absorb heat, becomes solar energy superheated steam later；
The system also includes vapour vapour heat exchangers；
The vapour vapour heat exchanger has superheated steam import, exhaust steam pipeline entrance, exhaust steam pipeline outlet and unsaturated water outlet, institute
The superheated steam import of vapour vapour heat exchanger and the unsaturated water outlet of the vapour vapour heat exchanger are stated, the vapour vapour heat exchanger
The exhaust steam pipeline outlet of exhaust steam pipeline entrance and the vapour vapour heat exchanger；
The tower type solar heat collector of the superheated steam import of the vapour vapour heat exchanger and the tower type solar heat collector overheats
The unsaturated water outlet of steam (vapor) outlet connection, the vapour vapour heat exchanger is connect with the entrance of the booster pump；The vapour vapour heat exchange
The exhaust steam pipeline entrance of device and the high pressure cylinder of the steam turbine are exported and are connected, the exhaust steam pipeline outlet of the vapour vapour heat exchanger and institute
State the vapor inlet port connection of coal-burning boiler.
2. tower type solar according to claim 1 and coal-burning boiler photothermal cogeneration system, which is characterized in that the vapour vapour
Heat exchanger includes outer cover of heat exchanger and exhaust steam pipeline；
One end of the outer cover of heat exchanger offers superheated steam import, and the other end of the outer cover of heat exchanger offers unsaturation
Water out；
The exhaust steam pipeline passes through the inside of the outer cover of heat exchanger.
3. tower type solar according to claim 2 and coal-burning boiler photothermal cogeneration system, which is characterized in that the heat exchange
Device interior of shell is provided with partition, and the quantity of the partition is at least one piece；
Between the superheated steam import and unsaturated water outlet, the partition is used in the mistake for the partition setting
Circulation passage is formed between hot steam import and unsaturated water outlet；
Wherein, the circulation passage directly formed between the superheated steam import and unsaturated water outlet is shorter than the overheat
The circulation passage formed between steam inlet and unsaturated water outlet via the partition.
4. tower type solar according to claim 3 and coal-burning boiler photothermal cogeneration system, which is characterized in that the partition
For plate structure, the partition intersects with the exhaust steam pipeline, is provided on the partition for passing through the exhaust steam pipeline
Through-hole.
5. tower type solar according to claim 4 and coal-burning boiler photothermal cogeneration system, which is characterized in that the partition
At least two pieces, each partition is arranged in parallel；
The outer cover of heat exchanger of one of close superheated steam import side in two pieces of adjacent partitions
Inner wall setting, and there is sky between the partition and the outer cover of heat exchanger inner wall of close unsaturated water outlet side
Gap；Another piece close to the unsaturated water outlet side the outer cover of heat exchanger inner wall setting, and the partition with it is close
There are gaps between the outer cover of heat exchanger inner wall of the superheated steam import side.
6.-the 5 any tower type solar and coal-burning boiler photothermal cogeneration system according to claim 1, which is characterized in that also
Including water tank；
The water tank is arranged between the unsaturated water outlet of the vapour vapour heat exchanger and the entrance of the booster pump.
7. tower type solar according to claim 6 and coal-burning boiler photothermal cogeneration system, which is characterized in that further include following
Ring water pump；
The water circulating pump is arranged between the water tank and the entrance of the booster pump.
8.-the 5 any tower type solar and coal-burning boiler photothermal cogeneration system according to claim 1, which is characterized in that institute
Stating coal-burning boiler also has reheated steam outlet, the reheated steam outlet and the intermediate pressure cylinder of the steam turbine and entering for low pressure (LP) cylinder
Mouth connection；
The high pressure cylinder outlet of the steam turbine is connect with the vapor inlet port of the coal-burning boiler.
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| CN106152089A (en) * | 2016-07-01 | 2016-11-23 | 华北电力大学 | A kind of coal generating system complementary with tower type solar collecting system heat |
| CN107453379B (en) * | 2017-09-18 | 2019-06-18 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of determining photo-thermal power station participates in the analysis method of optimal heat accumulation duration after peak regulation |
| CN108679586B (en) * | 2018-05-08 | 2020-06-12 | 哈尔滨锅炉厂有限责任公司 | Photo-thermal-pulverized coal linkage coupling boiler and steam-water separation method |
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