CN209383704U - A kind of gasification of biomass coupling direct combustion power generation system - Google Patents

A kind of gasification of biomass coupling direct combustion power generation system Download PDF

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Publication number
CN209383704U
CN209383704U CN201821854271.3U CN201821854271U CN209383704U CN 209383704 U CN209383704 U CN 209383704U CN 201821854271 U CN201821854271 U CN 201821854271U CN 209383704 U CN209383704 U CN 209383704U
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biomass
generation system
power generation
gasification
heat exchanger
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刘鸿飞
赵雅萱
赵喆
王利
常少英
陆诗原
李明明
伊然
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Guoneng Longyuan Environmental Protection Co Ltd
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Beijing Guodian Longyuan Environmental Engineering Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel

Abstract

The utility model provides a kind of gasification of biomass coupling direct combustion power generation system, including biomass gasification system and biomass direct combustion power generation system;Biomass gasification system includes biomass gasifying furnace and heat exchanger;Biomass gasifying furnace is connect with heat exchanger;Heat exchanger is connect with biomass direct combustion power generation system;Biomass gasifying furnace is used to biogas being melted into high-temperature fuel gas, and is transmitted to heat exchanger;Heat exchanger is transmitted to biomass direct combustion power generation system for exchanging heat to high-temperature fuel gas;Biomass direct combustion power generation system is for receiving high-temperature fuel gas, to generate electricity;Using the above scheme, electricity generation system adaptability to raw materials can be enhanced, solve the problems, such as that thermic load is not high when biomass boiler uses agricultural crop straw;Scheme provided by the utility model can effectively save the purification devices such as the dedusting tar removing in primordial matter gasification power generation system, using the power generator of direct combustion power generation system, have many advantages, such as that system synthesis sheet is low, stable, pollutant effulent is few.

Description

A kind of gasification of biomass coupling direct combustion power generation system
Technical field
The utility model belongs to gasification of biomass coupling direct combustion power generation technical field, and in particular to a kind of gasification of biomass coupling Close direct combustion power generation system.
Background technique
Biomass energy is always important energy source for the survival of mankind, is to be only second to coal, petroleum and natural gas and occupy 4th variety of energy sources, occupies an important position in entire energy resource system;China's biomass resource very abundant, can be used as About 4.6 hundred million tons of (standard coal)/years of biomass resource total amount of using energy source, but currently with amount only about 35,000,000 tons of (standards Coal)/year, utilization rate is only 7.6%, is still had greater room for improvement;Biomass combustion process has CO2The characteristics of zero-emission, this is right There is Special Significance in alleviating " greenhouse effects " got worse;Biomass power generation is the important channel for efficiently utilizing biomass, It can be achieved at the same time the scale of biomass, recycling, energy and clean utilization, be the industry that national policy emphasis is encouraged Developing direction.
Existing biomass generation mainly has biomass direct combustion power generation and Biomass Gasification & Power Generation;Biomass direct-fired hair Power technology has that biomass material adaptability is not strong, when especially using agricultural crop straw, there are boiler heat load compared with The problem of low and alkali metal corrosion heating surface, greatly limit the application range of the technology;Biomass Gasification & Power Generation is mostly small Type electricity generation system (500kW or less), efficiency only have 18% or so, and biological fuel gas need to be by purification processes such as dedusting tar removings After could be sent into interior combustion gas or gas turbine power generation, while newly-built flue gas purification device, system process is complicated, and equipment investment is high, And there are the problems such as sewage pollution, generator fluctuation of service.
Based on during above-mentioned biomass power generation, there has been no relevant solutions;Therefore urgent Need to seek effective scheme to solve the above problems.
Utility model content
The purpose of this utility model be in view of the above technology present in shortcoming, propose a kind of coupling of gasification of biomass Direct combustion power generation system, it is intended to it is not high to solve thermic load when biomass boiler uses agricultural crop straw in existing bioenergy power generation system The problem of.
The utility model provides a kind of gasification of biomass coupling direct combustion power generation system, including biomass gasification system and biology Upright combustion electricity generation system;Biomass gasification system includes biomass gasifying furnace and heat exchanger;Biomass gasifying furnace and heat exchanger connect It connects;Heat exchanger is connect with biomass direct combustion power generation system;Biomass gasifying furnace is used to biogas being melted into high-temperature fuel gas, and passes Transport to heat exchanger;Heat exchanger is transmitted to biomass direct combustion power generation system for exchanging heat to high-temperature fuel gas;It is biomass direct-fired Electricity generation system is for receiving high-temperature fuel gas, to generate electricity.
Further, biomass gasification system further includes cyclone separator;Cyclone separator side-edge air bleeds and biomass The connection of gasification furnace gas outlet;Cyclone separator bottom is connected to gasification of biomass furnace bottom;Cyclone separator gas outlet and heat exchange Device connection;Cyclone separator is used to carry out gas solid separation to high-temperature fuel gas.
Further, biomass gasification system further includes cyclone dust collectors;Cyclone dust collectors air inlet and cyclone separator Gas outlet connection;Cyclone dust collectors gas outlet is connected to heat exchanger air inlet;Cyclone dust collectors are used to carry out high-temperature fuel gas Dedusting.
Further, biomass gasification system further includes air-introduced machine;Biomass direct combustion power generation system includes biomass direct-fired Boiler;Air-introduced machine is respectively communicated with the gas outlet of heat exchanger and is connected to the air inlet of biomass direct-combustion boiler;Biomass direct-combustion boiler For directly burning biomass to generate superheated steam.
Further, biomass gasification system further includes pressure fan;Biomass direct combustion power generation system includes biomass direct-fired Boiler;Heat exchanger is connected to biomass gasifying furnace and/or biomass direct-combustion boiler respectively;Pressure fan is connected to heat exchanger;Air-supply Machine is for by the preheating in heat exchanger and being delivered to biomass gasifying furnace and/or biomass direct-combustion boiler for air.
Further, biomass direct combustion power generation system further includes steam turbine and generator;Steam turbine and biomass direct-fired pot Furnace connection;Biomass direct-combustion boiler is by generating superheated steam to drive steam turbine to work;Steam turbine drives electrical power generators.
Application scheme also provides a kind of gasification of biomass coupling direct combustion power generation method, applied to biomass described above Gasification coupling direct combustion power generation system;It is further comprising the steps of:
S1: biogas is melted into high-temperature fuel gas by biomass gasifying furnace, and is transmitted to heat exchanger;
S2: heat exchanger exchanges heat the high-temperature fuel gas, and is transmitted to biomass direct-combustion boiler and is coupled;
S3: the biomass direct-combustion boiler receives the high-temperature fuel gas and directly biomass burning generates superheated steam, with It generates electricity.
Further, before the S1 step further include:
S10: by biomass crushing and drying, so that the biomass partial size is less than 100mm, moisture is less than 20%;The life Substance is corn stover, wheat stalk or rice straw;And/or
After the S1 step further include:
S11: the high-temperature fuel gas is sent into cyclone separator and carries out preliminary gas solid separation;
S12: the high-temperature fuel gas after preliminary gas solid separation is sent into cyclone dust collectors again and is dusted;
S13: the high-temperature fuel gas after dedusting is preferably sent into the heat exchanger;The heat exchanger preheats the high-temperature fuel gas To 200 °C to 300 °C;
In the S1 step, biogas is melted into high-temperature fuel gas in the biomass gasifying furnace, so that the high temperature fires 750 °C to 800 °C of gas.
Further, include: in the S2 step
S21: the high-temperature fuel gas is transmitted to biomass direct-combustion boiler by air-introduced machine and coupled by heat exchanger;And/or
S23: air is preheated to 200 °C to 300 °C by the heat exchanger by pressure fan, and is delivered to the biology respectively Matter gasification furnace and/or the biomass direct-combustion boiler.
Further, the S3 step includes:
S31: being sent directly into the biomass direct-combustion boiler after biomass is crushed, and with the high temperature that comes from air-introduced machine conveying Combustion gas is mixed and burned in biomass boiler generates superheated steam, to drive steam turbine acting to generate mechanical energy, passes through the machine Tool can make generator issue electric energy.
Using the above scheme, the utility model is by utilizing gasification for gasification of biomass and biomass direct-fired efficient coupling Device handles the high agricultural crop straw biolobic material of alkali metal content, and net high-temperature fuel gas is passed through the power generation of direct-combustion boiler afterburning, enhancing Whole system adaptability to raw materials solves the problems, such as that thermic load is not high when biomass boiler uses agricultural crop straw;Meanwhile this is practical The scheme of novel offer can effectively save the purification devices such as the dedusting tar removing in primordial matter gasification power generation system, using straight The power generator for firing electricity generation system has many advantages, such as that system synthesis sheet is low, stable, pollutant effulent is few.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Below with reference to attached drawing, the utility model is described in further detail:
Fig. 1 is that a kind of gasification of biomass of the utility model couples direct combustion power generation system structure diagram.
In figure: 1- biomass gasifying furnace;2- cyclone separator;3- cyclone dust collectors;4- heat exchanger;5- pressure fan;6- draws Blower;7- biomass direct-combustion boiler;8- steam turbine;9- generator.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the utility model provides a kind of gasification of biomass coupling direct combustion power generation system, including biogas Change system and biomass direct combustion power generation system;Biomass gasification system includes biomass gasifying furnace 1 and heat exchanger 4;Biogas Change furnace 1 to connect with heat exchanger 4;Heat exchanger 4 is connect with biomass direct combustion power generation system;Biomass gasifying furnace 1 is used for biomass It is gasificated into high-temperature fuel gas, and is transmitted to heat exchanger 4;Specifically, the biomass burnt in biomass gasifying furnace 1 includes corn stalk The stalk biomass such as stalk, wheat stalk, rice straw, and before burning, first by corn stover, wheat stalk, rice straw etc. Stalk biomass makes its partial size be less than 100mm after broken drying, then moisture passes through feed device from life less than 20% 1 bottom dense of gasification substance furnace is added;, biomass in gasification furnace 1 abundant gasification reaction occurs at 750 DEG C -800 DEG C, Generate 750 DEG C of high-temperature fuel gas;Heat exchanger 4 is transmitted to biomass direct combustion power generation system for exchanging heat to high-temperature fuel gas, passes through The high-temperature fuel gas greenhouse cooling of the heat exchange of heat exchanger 4 is crossed to 450 DEG C;Biomass direct combustion power generation system is used to receive high-temperature fuel gas, with It generates electricity;Using the above scheme, biomass direct combustion power generation system and biomass gasification system, pass through generate gasification system The mode that combustion gas is passed through biomass boiler afterburning realizes that system couples, and is burnt by classification, then the mode of combustion gas coupling, to solve Thermic load not high problem when certainly substance boiler uses agricultural crop straw.
Preferably, in conjunction with above scheme, as shown in Figure 1, biomass gasification system further includes whirlwind point in the present embodiment From device 2;2 side-edge air bleeds of cyclone separator are connected to 1 gas outlet of biomass gasifying furnace;2 bottom of cyclone separator and biomass The connection of 1 bottom of gasification furnace;2 gas outlet of cyclone separator is connected to heat exchanger 4;Cyclone separator 2 is used to carry out high-temperature fuel gas Gas solid separation;Specifically, the high-temperature fuel gas that biomass gasifying furnace 1 comes out first passes around cyclone separator 2 and carries out gas-solid just separation, Unreacted carbon residue returns to biomass gasifying furnace 1 through material-returning device after collecting and further reacts, and the combustion gas after separation enters whirlwind 3 dedusting of deduster.
Preferably, in conjunction with above scheme, as shown in Figure 1, biomass gasification system further includes that whirlwind removes in the present embodiment Dirt device 3;3 air inlet of cyclone dust collectors is connected to the gas outlet of cyclone separator 2;3 gas outlet of cyclone dust collectors and heat exchanger 4 into Port connection;3 device of cyclone dust removal can take a step forward for being dusted to high-temperature fuel gas in high-temperature fuel gas heat exchanger 4 in this way Filtering improves heat transfer effect.
Preferably, in conjunction with above scheme, as shown in Figure 1, biomass gasification system further includes air-introduced machine in the present embodiment 6;Biomass direct combustion power generation system includes biomass direct-combustion boiler 7;Air-introduced machine 6 is respectively communicated with gas outlet and the biology of heat exchanger 4 The air inlet of upright combusting boiler 7 is connected to;Biomass direct-combustion boiler 7 is for directly burning to generate superheated steam to biomass;? The non-stalk biology that the biomass burnt in biomass direct-combustion boiler 7 includes forestry processing waste, energy-source plant is representative Matter;Using the above scheme, biomass is sent by high-temperature fuel gas after effectively heat exchanger 4 can cool down after the pressurization of air-introduced machine 6 Direct-combustion boiler 7 and other biological matter carry out mixed combustion.
Preferably, in conjunction with above scheme, as shown in Figure 1, biomass gasification system further includes pressure fan in the present embodiment 5;Biomass direct combustion power generation system includes biomass direct-combustion boiler 7;Heat exchanger 4 respectively with biomass gasifying furnace 1 and/or biomass Direct-combustion boiler 7 is connected to;Pressure fan 5 is connected to heat exchanger 4;Pressure fan 5 is used for air by the preheating in heat exchanger 4 and conveying To biomass gasifying furnace 1 and/or biomass direct-combustion boiler 7, to realize in biomass gasifying furnace 1 and/or biomass direct-combustion boiler 7 As biomass combustion First air, to be burnt into the biomass fuel in biomass gasifying furnace 1 and/or biomass direct-combustion boiler 7 Row is adjusted;It is 200 DEG C -300 DEG C by the air themperature that heat exchanger 4 preheats.
Preferably, in conjunction with above scheme, as shown in Figure 1, biomass direct combustion power generation system further includes vapour in the present embodiment Turbine 8 and generator 9;Steam turbine 8 is connect with biomass direct-combustion boiler 7;Biomass direct-combustion boiler 7 by generate superheated steam with Steam turbine 8 is driven to work;To drive generator 9 to generate electricity by steam turbine 8;The biomass burnt in biomass direct-combustion boiler 7 Including forestry processing waste, the non-stalk biomass that energy-source plant is representative, first by non-stalk biology before burning Matter is sent directly into biomass boiler 7 through feed device after broken and conveys the high-temperature fuel gas come in life with from air-introduced machine 6 It is mixed and burned in substance boiler 7 and generates superheated steam, driven the acting of steam turbine 8 to generate mechanical energy, generator 9 is made to issue electric energy.
Correspondingly, in conjunction with above scheme, as shown in Figure 1, application scheme also provides a kind of gasification of biomass coupling direct combustion Electricity-generating method couples direct combustion power generation system applied to gasification of biomass described above;It is further comprising the steps of:
S1: biogas is melted into high-temperature fuel gas by biomass gasifying furnace 1, and is transmitted to heat exchanger 4;
S2: heat exchanger 4 exchanges heat high-temperature fuel gas, and is transmitted to biomass direct-combustion boiler 7 and is coupled;
S3: biomass direct-combustion boiler 7 receives high-temperature fuel gas and directly biomass burning generates superheated steam, to be sent out Electricity.
Preferably, in conjunction with above scheme, in the present embodiment, before the S1 step further include:
S10: by biomass crushing and drying, so that biomass partial size is less than 100mm, moisture is less than 20%;The biomass For corn stover, wheat stalk or rice straw;And/or
After the S1 step further include:
S11: high-temperature fuel gas feeding cyclone separator 2 is subjected to preliminary gas solid separation;
S12: the high-temperature fuel gas after preliminary gas solid separation is sent into cyclone dust collectors 3 again and is dusted;
S13: the high-temperature fuel gas after dedusting is preferably sent into heat exchanger 4;High-temperature fuel gas is preheated to 200 °C extremely by heat exchanger 4 300°C;
In the S1 step, biogas is melted into high-temperature fuel gas in biomass gasifying furnace 1, so that 750 °C of high-temperature fuel gas To 800 °C.
Preferably, in conjunction with above scheme, in the present embodiment, include: in the S2 step
S21: high-temperature fuel gas is transmitted to biomass direct-combustion boiler 7 by air-introduced machine 6 and coupled by heat exchanger 4;And/or
S23: air is preheated to 200 °C to 300 °C by heat exchanger 4 by pressure fan 5, and is delivered to gasification of biomass respectively Furnace 1 and/or biomass direct-combustion boiler 7.
Preferably, in conjunction with above scheme, in the present embodiment, the S3 step includes:
S31: it is sent directly into biomass direct-combustion boiler 7 after biomass is crushed, and is fired with the high temperature come from the conveying of air-introduced machine 6 Gas is mixed and burned in biomass boiler 7 generates superheated steam, to drive the acting of steam turbine 8 to generate mechanical energy, passes through mechanical energy Generator 9 is set to issue electric energy.
Using the above scheme, the utility model is by utilizing gasification for gasification of biomass and biomass direct-fired efficient coupling Device handles the high agricultural crop straw biolobic material of alkali metal content, and net high-temperature fuel gas is passed through the power generation of direct-combustion boiler afterburning, enhancing Whole system adaptability to raw materials solves the problems, such as that thermic load is not high when biomass boiler uses agricultural crop straw;Meanwhile this is practical The scheme of novel offer can effectively save the purification devices such as the dedusting tar removing in primordial matter gasification power generation system, using straight The power generator for firing electricity generation system has many advantages, such as that system synthesis sheet is low, stable, pollutant effulent is few.
The above, the only preferred embodiment of the utility model, not do limit in any form to the utility model System.Anyone skilled in the art, in the case where not departing from technical solutions of the utility model ambit, all using above-mentioned The technology contents make many possible changes and modifications to technical solutions of the utility model, or be revised as equivalent variations etc. Imitate embodiment.Therefore, all contents without departing from technical solutions of the utility model, the technology according to the utility model is to the above reality Any change modification, equivalent variations and modification that example is made are applied, the protection scope of the technical program is belonged to.

Claims (6)

1. a kind of gasification of biomass couples direct combustion power generation system, which is characterized in that upright including biomass gasification system and biology Fire electricity generation system;The biomass gasification system includes biomass gasifying furnace and heat exchanger;The biomass gasifying furnace with it is described Heat exchanger connection;The heat exchanger is connect with the biomass direct combustion power generation system;
The biomass gasifying furnace is used to biogas being melted into high-temperature fuel gas, and is transmitted to the heat exchanger;
The heat exchanger is transmitted to the biomass direct combustion power generation system for exchanging heat to the high-temperature fuel gas;
The biomass direct combustion power generation system is for receiving the high-temperature fuel gas, to generate electricity.
2. gasification of biomass according to claim 1 couples direct combustion power generation system, which is characterized in that the gasification of biomass System further includes cyclone separator;The cyclone separator side-edge air bleeds are connected to the biomass gasifying furnace gas outlet;Institute Cyclone separator bottom is stated to be connected to the gasification of biomass furnace bottom;The cyclone separator gas outlet and the heat exchanger connect It is logical;The cyclone separator is used to carry out gas solid separation to the high-temperature fuel gas.
3. gasification of biomass according to claim 2 couples direct combustion power generation system, which is characterized in that the gasification of biomass System further includes cyclone dust collectors;The cyclone dust collectors air inlet is connected to the gas outlet of the cyclone separator;The rotation Wind deduster gas outlet is connected to the heat exchanger air inlet;The cyclone dust collectors are for removing the high-temperature fuel gas Dirt.
4. gasification of biomass according to claim 1 couples direct combustion power generation system, which is characterized in that the gasification of biomass System further includes air-introduced machine;The biomass direct combustion power generation system includes biomass direct-combustion boiler;The air-introduced machine is respectively communicated with The gas outlet of the heat exchanger is connected to the air inlet of the biomass direct-combustion boiler;The biomass direct-combustion boiler is used for life Substance directly burns to generate superheated steam.
5. gasification of biomass according to claim 1 couples direct combustion power generation system, which is characterized in that the gasification of biomass System further includes pressure fan;The biomass direct combustion power generation system includes biomass direct-combustion boiler;The heat exchanger respectively with institute State biomass gasifying furnace and/or biomass direct-combustion boiler connection;The pressure fan is connected to the heat exchanger;The air-supply Machine is used for air by the preheating in the heat exchanger and is delivered to the biomass gasifying furnace and/or described biomass direct-fired Boiler.
6. gasification of biomass according to claim 4 couples direct combustion power generation system, which is characterized in that described biomass direct-fired Electricity generation system further includes steam turbine and generator;The steam turbine is connect with the biomass direct-combustion boiler;The biology is upright Combusting boiler is by generating superheated steam to drive the steam turbine to work;The steam turbine drives the electrical power generators.
CN201821854271.3U 2018-11-12 2018-11-12 A kind of gasification of biomass coupling direct combustion power generation system Active CN209383704U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112431731A (en) * 2020-10-30 2021-03-02 南方电网电动汽车服务有限公司 Solar power generation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112431731A (en) * 2020-10-30 2021-03-02 南方电网电动汽车服务有限公司 Solar power generation system

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Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing

Patentee after: Guoneng Longyuan environmental protection Co.,Ltd.

Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing.

Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd.