CN207907242U - A kind of power generation by waste combustion system - Google Patents
A kind of power generation by waste combustion system Download PDFInfo
- Publication number
- CN207907242U CN207907242U CN201820232195.6U CN201820232195U CN207907242U CN 207907242 U CN207907242 U CN 207907242U CN 201820232195 U CN201820232195 U CN 201820232195U CN 207907242 U CN207907242 U CN 207907242U
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- power generation
- combustion system
- waste combustion
- steam
- superheated steam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The utility model provides a kind of power generation by waste combustion system, and the power generation by waste combustion system includes：Biomass boiler is configured to generate the first superheated steam；Steam turbine high-pressure cylinder is configured to drive electrical power generators under the action of first superheated steam；Domestic refuse incinerator is configured to generate the second superheated steam；Reheater is configured to heat the mixed vapour of steam discharge and second superheated steam that the steam turbine high-pressure cylinder generates；And turbine low pressure cylinder, it is configured to drive electrical power generators under the action of the mixed vapour by reheater heating.Power generation by waste combustion system provided by the utility model, the boiler circuit of Domestic refuse incinerator is combined with biomass direct-fired unit, it is generating integrated to realize working medium, to improve the thermal efficiency of cycle of garbage burning boiler boiler circuit, the heating efficiency of rubbish is improved, and saves the condensing steam turbine generator group system equipment investment of garbage burning boiler.
Description
Technical field
The utility model is related to waste incineration and generating electricity technologies, in particular to a kind of power generation by waste combustion system.
Background technology
The major way of the domestic waste of China's majority processing at present is landfill, and landfill method is that rubbish filling is pre-
It is compacted on the hole middle cover got ready, brings it about biology, physics, chemical change, decomposing organic matter reaches minimizing and innoxious
Purpose.But the processing mode of landfill is easiest to cause the secondary pollution of groundwater resources, and great threat is caused to environment.
China is waste resources big country in the world.If rubbish can be substantially effectively used for power generation by waste combustion by China, will save every year
10,000,000 tons of coal 5-6, " economy of resources " is extremely considerable.
The basic principle of waste incineration and generating electricity is that rubbish is carried out high temperature incineration, and the thermal energy of generation is converted into high-temperature vapour,
Pushing turbine rotates, and generator is made to produce electricl energy.Existing garbage incineration technology passes through more garbage burning boilers and one
Or more steam turbine generator compositions, the refuse thermal value burned is low, and the quantity of steam that boiler generates is small, and uses low parameter steam
It generates electricity for Turbo-generator Set.Since steam parameter is low, Turbo-generator Set thermal efficiency of cycle is relatively low, general to only have
21.85% or so, it is far below the thermal efficiency of cycle (about 37%) of biomass power generation unit.
Therefore, it is necessary to a kind of new power generation by waste combustion system be proposed, to solve the above problems.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.The utility model content part of the utility model is not meant to attempt to limit claimed
Technical solution key feature and essential features, do not mean that more attempt determine technical solution claimed guarantor
Protect range.
In order to solve the above problems at least partly, the utility model discloses a kind of power generation by waste combustion system, the burnings
Electricity generation system includes：
Biomass boiler is configured to generate the first superheated steam；
Steam turbine high-pressure cylinder is configured to drive electrical power generators under the action of first superheated steam；
Domestic refuse incinerator is configured to generate the second superheated steam；
Reheater, the mixing for being configured to heat steam discharge and second superheated steam that the steam turbine high-pressure cylinder generates are steamed
Vapour；And
Turbine low pressure cylinder is configured to the driving generator hair under the action of mixed vapour by reheater heating
Electricity.
Illustratively, the power generation by waste combustion system further includes：Condenser, the condenser are configured to condensation from the steamer
The steam of machine low pressure (LP) cylinder discharge, to convert it into condensed water.
Illustratively, the power generation by waste combustion system further includes：Low-pressure heater, the low-pressure heater are configured to heating institute
State condensed water.
Illustratively, the power generation by waste combustion system further includes：Oxygen-eliminating device, the oxygen-eliminating device be configured to the condensed water into
Row thermal de-aeration.
Illustratively, the power generation by waste combustion system further includes：Feed pump, the feed water pump matching are to draw the condensed water
Go out for water supply, and the water supply of first part is sent to the biomass boiler, and the water supply of second part is sent
To the Domestic refuse incinerator.
Illustratively, the power generation by waste combustion system further includes：High-pressure heater, the high-pressure heater are configured to entering
The water supply of the first part before the biomass boiler is heated.
Illustratively, the power generation by waste combustion system further includes：The superheater being set in the biomass boiler, the mistake
Hot device is configured to heat the water supply of the first part to generate first superheated steam.
Illustratively, the reheater is arranged in the biomass boiler.
Power generation by waste combustion system provided by the utility model, the boiler circuit of Domestic refuse incinerator and biology is upright
Combustion engine group is combined, and realizes that working medium is generating integrated, to improve the thermal efficiency of cycle of garbage burning boiler boiler circuit, is carried
The heating efficiency of high rubbish, and save the condensing steam turbine generator group system equipment investment of garbage burning boiler.
Description of the drawings
The following drawings of the utility model is used to understand the utility model in this as the part of the utility model.Attached drawing
In show the embodiments of the present invention and its description, for explaining the principles of the present invention.
In attached drawing：
Fig. 1 shows the structural schematic diagram of the power generation by waste combustion system according to one embodiment of the utility model.
Reference sign：
1 biomass boiler
2 superheaters
3 reheaters
4 steam turbine high-pressure cylinders
5 turbine low pressure cylinders
6 condensers
7 low-pressure heaters
8 oxygen-eliminating devices
9 feed pumps
10 high-pressure heaters
11 Domestic refuse incinerators
12 generators
Specific implementation mode
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It is, however, obvious to a person skilled in the art that the utility model may not need it is one or more of these thin
It saves and is carried out.In other examples, in order to avoid obscuring with the utility model, for more well known in the art
Technical characteristic is not described.
In order to thoroughly understand the utility model, detailed step will be proposed in following description, to illustrate this practicality
The charging gear of the burning boiler of novel proposition.Obviously, the execution of the utility model is not limited to those skilled in the art
The specific details being familiar with.The preferred embodiment of the utility model is described in detail as follows, however other than these detailed descriptions, this
Utility model can also have other embodiment.
It should be understood that when the term " comprising " and/or " including " is used in this specification, indicating described in presence
Feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of other one or more features, entirety,
Step, operation, element, component and/or combination thereof.
Existing refuse burning system is made of more Domestic refuse incinerators and one or more steam turbine generator, but
Unit efficiency is not high, and the cycle efficieny of steam turbine is far below the thermal efficiency of cycle of biomass power generation unit (about less than 23%
37%).In view of the above-mentioned problems, the utility model provides a kind of power generation by waste combustion system, power generation by waste combustion system provided in this embodiment
Biomass boiler and Domestic refuse incinerator are combined, the low parameter steam of Domestic refuse incinerator is passed through biomass pot
In the high parameter steam of stove, the superheated steam of Domestic refuse incinerator is made to be matched with biomass boiler reheated steam parameter, it is real
Existing biomass boiler and Domestic refuse incinerator working medium are generating integrated.
The power generation by waste combustion system of one embodiment of the utility model is described in detail with reference to Fig. 1.
As shown in Figure 1, power generation by waste combustion system provided in this embodiment include biomass boiler 1, superheater 2, reheater 3,
Steam turbine high-pressure cylinder 4, turbine low pressure cylinder 5, condenser 6, low-pressure heater 7, oxygen-eliminating device 8, feed pump 9, high-pressure heater 10,
Domestic refuse incinerator 11 and generator 12.
Wherein, biomass boiler 1 is configured to generate the first superheated steam.Specifically, biomass boiler 1 is to biomass material
High temperature incineration is carried out, the biomass material is, for example, agricultural crop straw, tree branches, wood chip sawdust, agriculture and forestry organic waste material etc..
Material will produce the flue gas for carrying amount of heat during burning.
Superheater 2 is arranged in biomass boiler 1, for the heat water supply using flue gas in biomass boiler 1 with
Generate the first superheated steam.In the present embodiment, evaporator (not shown) is additionally provided in biomass boiler 1, by evaporator plus
Hot water supply heats saturated vapor to generate the first superheated steam to be converted into saturated vapor, then by superheater 2.Evaporator and mistake
Various suitable structures may be used in hot device 2, such as serpentine, screen formula, wall and packet wall may be used, and by right
Stream, radiation or half radiation mode heat to generate superheated steam water supply.Illustratively, in the present embodiment, superheater 2
Using serpentine structure, after saturated vapor enters superheater 2, superheater 2 utilizes the flue gas heat in biomass boiler 1
Saturated vapor is heated to generate the first superheated steam.In the present embodiment, the first overheat caused by biomass boiler 1
Steam is high parameter steam (i.e. high-temperature high-pressure overheat steam).
First superheated steam of the high parameter generated in superheater 2 initially enters in steam turbine high-pressure cylinder 4, and drives steamer
Machine high pressure cylinder 4 works.Steam turbine high-pressure cylinder 4 is configured to rotate in the case where the first superheated steam acts on, to drive generator 12 to send out
Electricity.That is, in steam turbine high-pressure cylinder 4, it converts the thermal energy of the first superheated steam to mechanical energy first, then again by will be mechanical
It can be converted into electric energy, to generate electricity.
Domestic refuse incinerator 11 is configured to burning domestic garbage to generate the second superheated steam.With the first superheated steam
It compares, the second superheated steam caused by Domestic refuse incinerator is low parameter superheated steam, in the present embodiment, the low ginseng
Number superheated steam is medium temperature and medium pressure superheated steam, and parameter is, for example, 4MPa (megapascal)/400 DEG C.Second superheated steam with
The exhaust that the steam turbine high-pressure cylinder 4 generates converges, and is reheated to it by reheater 3.
Reheater 3 is arranged in biomass boiler 1, for the heat using flue gas in biomass boiler 1 to from steam turbine
The mixed gas of the steam and the second superheated steam that are discharged in high pressure cylinder 4 carries out reheating.It is similar with superheater 2, reheating
Various suitable structures may be used in device 3, such as serpentine, screen formula, wall and packet wall may be used, and by convection current,
Radiation or half radiation mode add the mixed gas of steam and the second superheated steam from steam turbine high-pressure cylinder 4 from discharge
Heat is to increase vapor (steam) temperature.Illustratively, in the present embodiment, reheater 3 uses panelized construction, when steam enters reheater 3
And then hot device 3 reheats mixed vapour using the flue gas heat in biomass boiler 1, to increase vapor (steam) temperature, from
And improve subsequent power generation efficiency.
Turbine low pressure cylinder 5 is configured to rotate under the mixed vapour effect reheated by reheater 3, to drive hair
Motor 12 generates electricity.That is, in turbine low pressure cylinder 5, it converts the thermal energy of the mixed vapour Jing Guo reheating to machinery first
Can, then again by converting mechanical energy to electric energy, to generate electricity.
Condenser 6 is for condensing the steam being discharged from turbine low pressure cylinder 5, so that steam condensation is converted to condensed water.It is solidifying
Vapour device 6 can be with various suitable heat exchangers, illustratively, in the present embodiment, and condenser 6 utilizes cooling water condensation steam, i.e.,
It after the steam being discharged from turbine low pressure cylinder 5 enters condenser 6, exchanges heat with cooling water, to reduce temperature, realizes condensation.
Condensed water then passes through low-pressure heater 7 and oxygen-eliminating device 8 successively, wherein low-pressure heater 7 is used for the condensation
Water is heated, and oxygen-eliminating device 8 is used to carry out thermal de-aeration to the condensed water.
Feed pump 9 is configured to condensed water leading to water supply, and the water supply of first part is sent to the biomass boiler
1, to form the first superheated steam in biomass boiler 1, and the water supply of second part sent to Domestic refuse incinerator
11, to form the second superheated steam in Domestic refuse incinerator 11, to realize recycling for condensed water.As showing
The water supply of example, first part is also heated via high-pressure heater 10 before entering biomass boiler 1.Feed pump 9 can be with
Using various suitable water pumps, do not limit herein.
It continues to refer to figure 1, the power cycle of power generation by waste combustion system provided in this embodiment is：Biomass boiler 1 produces
The first raw superheated steam enters the acting of steam turbine high-pressure cylinder 4, steam discharge and the Domestic refuse incinerator 11 of steam turbine high-pressure cylinder 4
The second superheated steam generated converges, and the mixed vapour after converging is passed through in the reheater 3 being arranged in biomass boiler 1 to be added again
Heat enters turbine low pressure cylinder 5 and does work after heating, the steam discharge of turbine low pressure cylinder 5 enters condenser 6 and becomes condensed water, condenses
After water is by the heating of low-pressure heater 7 and 8 deoxygenation of oxygen-eliminating device, water supply is led to by feed pump 9, the water supply of first part is into height
Biomass boiler 1 is introduced after pressing heater 10 to heat, the water supply of second part enters Domestic refuse incinerator 11, to realize
It recycles.
Power generation by waste combustion system provided by the utility model, the boiler circuit of Domestic refuse incinerator and biology is upright
Combustion engine group is combined, and realizes that working medium is generating integrated, to improve the thermal efficiency of cycle of garbage burning boiler boiler circuit, is carried
The heating efficiency of high rubbish, and save the condensing steam turbine generator group system equipment investment of garbage burning boiler.
Unless otherwise defined, the technology of technical and scientific term used herein and the technical field of the utility model
The normally understood meaning of personnel is identical.Term used herein is intended merely to describe specifically to implement purpose, it is not intended that limit
The utility model processed.Terms such as herein presented " settings " can both indicate that a component was attached directly to another portion
Part can also indicate that a component is attached to another component by middleware.The spy described in one embodiment herein
Sign can be applied to another embodiment in combination individually or with other feature, unless this feature is in another embodiment
It is not suitable for or is otherwise noted.
The utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.In addition ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and introduction according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model range claimed with
It is interior.The scope of protection of the utility model is defined by the appended claims and its equivalent scope.
Claims (8)
1. a kind of power generation by waste combustion system, which is characterized in that the power generation by waste combustion system includes：
Biomass boiler is configured to generate the first superheated steam；
Steam turbine high-pressure cylinder is configured to drive electrical power generators under the action of first superheated steam；
Domestic refuse incinerator is configured to generate the second superheated steam；
Reheater is configured to heat the mixed vapour of steam discharge and second superheated steam that the steam turbine high-pressure cylinder generates；
And
Turbine low pressure cylinder is configured to drive electrical power generators under the action of the mixed vapour by reheater heating.
2. power generation by waste combustion system according to claim 1, which is characterized in that further include：Condenser, the condenser configuration
To condense the steam being discharged from the turbine low pressure cylinder, to convert it into condensed water.
3. power generation by waste combustion system according to claim 2, which is characterized in that further include：Low-pressure heater, the low pressure add
Hot device is configured to heat the condensed water.
4. power generation by waste combustion system according to claim 2, which is characterized in that further include：Oxygen-eliminating device, the oxygen-eliminating device configuration
To carry out thermal de-aeration to the condensed water.
5. power generation by waste combustion system according to claim 2, which is characterized in that further include：Feed pump, the feed water pump matching
For the condensed water is led to water supply, and the water supply of first part is sent to the biomass boiler, and by second
The partial water supply is sent to the Domestic refuse incinerator.
6. power generation by waste combustion system according to claim 5, which is characterized in that further include：High-pressure heater, the high pressure add
Hot device is configured to heat the water supply of the first part before entering the biomass boiler.
7. power generation by waste combustion system according to claim 5 or 6, which is characterized in that further include：It is set to the biomass pot
Superheater in stove, the superheater are configured to heat the water supply of the first part and are steamed with generating first overheat
Vapour.
8. power generation by waste combustion system according to claim 1, which is characterized in that the reheater is arranged in the biomass pot
In stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820232195.6U CN207907242U (en) | 2018-02-08 | 2018-02-08 | A kind of power generation by waste combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820232195.6U CN207907242U (en) | 2018-02-08 | 2018-02-08 | A kind of power generation by waste combustion system |
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| Publication Number | Publication Date |
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| CN207907242U true CN207907242U (en) | 2018-09-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793018A (en) * | 2019-03-30 | 2020-02-14 | 上海康恒环境股份有限公司 | Steam reheating system of household garbage incineration waste heat boiler adopting saturated steam for heating |
-
2018
- 2018-02-08 CN CN201820232195.6U patent/CN207907242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793018A (en) * | 2019-03-30 | 2020-02-14 | 上海康恒环境股份有限公司 | Steam reheating system of household garbage incineration waste heat boiler adopting saturated steam for heating |
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