CN112325255A - Straw gasification direct-fired steam boiler device - Google Patents

Straw gasification direct-fired steam boiler device Download PDF

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Publication number
CN112325255A
CN112325255A CN202011199352.6A CN202011199352A CN112325255A CN 112325255 A CN112325255 A CN 112325255A CN 202011199352 A CN202011199352 A CN 202011199352A CN 112325255 A CN112325255 A CN 112325255A
Authority
CN
China
Prior art keywords
straw gasification
steam boiler
gasification furnace
steam
straw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011199352.6A
Other languages
Chinese (zh)
Inventor
李冰峰
徐文勇
董保成
王久臣
吴晓春
李惠斌
李景明
孙丽英
任雅薇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agricultural Ecology And Resources Protection General Station Of Ministry Of Agriculture And Rural Areas
Original Assignee
Agricultural Ecology And Resources Protection General Station Of Ministry Of Agriculture And Rural Areas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agricultural Ecology And Resources Protection General Station Of Ministry Of Agriculture And Rural Areas filed Critical Agricultural Ecology And Resources Protection General Station Of Ministry Of Agriculture And Rural Areas
Priority to CN202011199352.6A priority Critical patent/CN112325255A/en
Publication of CN112325255A publication Critical patent/CN112325255A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/22Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/08Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/26Steam-separating arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00Combustion methods not related to a particular type of apparatus
    • F23B90/04Combustion methods not related to a particular type of apparatus including secondary combustion
    • F23B90/06Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere

Abstract

The invention relates to the technical field of steam boilers, in particular to a straw gasification direct-combustion steam boiler device which comprises a base, a waste heat furnace, a steam boiler, a straw gasification furnace and a feeding device, wherein one side of the upper end of the base is connected with a support frame, the middle of the support frame is provided with the feeding device, the feeding device consists of a feed hopper and a spiral feeding machine, one side of the feeding device is connected with the straw gasification furnace, one side of the straw gasification furnace, which is far away from the feeding device, is connected with a burner, one side of the burner, which is far away from the straw gasification furnace, is connected with the steam boiler, the upper part inside the steam boiler is provided with a main water tank, the middle of the upper end of the main water tank is provided with a steam-water separator. The invention uses the straw to produce fuel gas for heating the boiler, replaces fuel oil, saves a large amount of cost for users at low cost, effectively utilizes the straw and is more environment-friendly.

Description

Straw gasification direct-fired steam boiler device
Technical Field
The invention relates to the technical field of steam boilers, in particular to a straw gasification direct-combustion steam boiler device.
Background
The utilization of crop straws by Chinese farmers has a long history, but only because of low agricultural production level, low yield and small quantity of straws, most of the straws are used as fuel and burnt except that a small quantity of straws are used for gaskets and feeding livestock and part of straws are used for composting. With the development of agricultural production, since the 80 th of the 20 th century in China, the grain yield is greatly improved, the quantity of straws is large, and a large amount of surplus straws are available in rural areas due to the popularization of firewood and coal saving technologies and the popularization of coal burning and liquefied gas use.
The steam boiler needs a large amount of fuel when in use, has high energy consumption, and needs environment-friendly fuel to reduce the energy consumption.
Disclosure of Invention
The invention aims to provide a straw gasification direct-combustion steam boiler device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a straw gasification direct-combustion steam boiler device comprises a base, a waste heat furnace, a steam boiler, a straw gasification furnace and a feeding device, wherein one side of the upper end of the base is connected with a support frame, the middle of the support frame is provided with the feeding device, the feeding device consists of a feed hopper and a spiral feeding machine, one side of the feeding device is connected with the straw gasification furnace, the lower part of the basal plane of the straw gasification furnace is provided with a discharge opening cover, one side of the upper end of the straw gasification furnace is provided with an air inlet, one side of the upper end of the straw gasification furnace, far away from the air inlet, is connected with a straw gasification furnace steam pipe, one side of the straw gasification furnace, far away from the feeding device, is connected with the steam boiler, the upper part inside the steam boiler is provided with a main water tank, the middle of the, the steam boiler is characterized in that a heating pipe is arranged in the middle of the interior of the steam boiler, a combustion chamber is arranged on the lower portion of the interior of the steam boiler, one side, far away from a combustor, of the steam boiler is connected with a waste heat furnace, the waste heat furnace is composed of a waste heat water tank and a waste heat pipe, and a smoke exhaust port is arranged in the middle of one side, far away from the steam boiler, of the waste heat pipe.
Preferably, the lower end of the feed hopper, one end of the steam pipe of the straw gasification furnace, which is far away from the straw gasification furnace, and the part of the straw gasification furnace, which is close to the burner are all provided with control valves.
Preferably, the steam pipe of the straw gasification furnace is connected with the upper ends of the straw gasification furnace and the steam-water separator through flanges.
Preferably, the spiral feeding machine is connected with the upper end of the straw gasification furnace and the lower end of the feed hopper through flanges.
Preferably, the combustor is a gas combustor.
Preferably, the steam-water separator is a UFS2 steam-water separator.
Preferably, the heating pipe, the combustion chamber and the residual heat pipe are of an integrated structure, and the combustion chamber is connected with a flame projecting port of the combustor.
Preferably, the waste heat pipes are distributed in the middle of the interior of the waste heat water tank, the upper end of the waste heat water tank is provided with an exhaust port, and the lower ends of the steam boiler and the waste heat water tank are provided with water inlets.
Compared with the prior art, the invention has the beneficial effects that:
1. the spiral feeding machine is connected with the upper end of the straw gasification furnace and the lower end of the feed hopper through flanges to form a sealed feeding structure, so that the straw gasification furnace is more stable in reaction.
2. The invention has control valves at the lower end of the feed hopper, at the end of the steam pipe of the straw gasification furnace far away from the straw gasification furnace and at the position of the straw gasification furnace near the burner, the steam pipe of the straw gasification furnace, the straw gasification furnace and the upper end of the steam-water separator are connected by flanges, the biomass straws are compressed and molded into granular fuel as raw materials, air and steam are used as gasifying agents in the straw gasification furnace, namely the energy conversion process of the heating reaction of the biomass granular raw materials under the anoxic state, the biomass generally comprises elements such as carbon, hydrogen, oxygen and the like and ash, when the biomass is ignited, a small amount of oxygen is supplied, and effective measures are taken to control the reaction process, so that the elements such as carbon monoxide and hydrogen are changed into combustible gases such as carbon monoxide, methane, hydrogen and the like, most of the energy in the straws is transferred into the gases, replaces fuel oil, saves a large amount of cost for users at low price, effectively utilizes the straws and is more environment-friendly.
3. The waste heat pipes are distributed in the middle of the interior of the waste heat water tank, the upper end of the waste heat water tank is provided with an exhaust port, and the lower ends of the steam boiler and the waste heat water tank are provided with water inlets to form a waste heat heating device, so that heat is fully utilized.
Drawings
FIG. 1 is an overall structural view of a straw gasification direct-fired steam boiler device according to the present invention;
FIG. 2 is an internal structure view of the straw gasification direct-fired steam boiler device according to the present invention;
FIG. 3 is a structural view of the internal structure of the feeding device of the straw gasification direct-fired steam boiler device according to the present invention.
In the figure: 1-base, 2-waste heat furnace, 3-steam boiler, 4-burner, 5-discharge opening cover, 6-straw gasification furnace, 7-feeding device, 8-support frame, 9-straw gasification furnace steam pipe, 10-exhaust port, 11-steam-water separator, 12-main water tank, 13-waste heat water tank, 14-exhaust port, 15-waste heat pipe, 16-combustion chamber, 17-heating pipe, 18-feed hopper, 19-spiral feeder, 20-air inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a straw gasification direct combustion steam boiler device, which comprises a base 1, waste heat stove 2, steam boiler 3, straw gasification stove 6 and loading attachment 7, 1 upper end one side of base is connected with support frame 8, be equipped with loading attachment 7 in the middle of the support frame 8, loading attachment 7 comprises feeder hopper 18 and spiral material loading machine 19, loading attachment 7 one side is connected with straw gasification stove 6, spiral material loading machine 19 and 6 upper ends of straw gasification stove, all through flange joint between the 18 lower extremes of feeder hopper, 6 base face lower parts of straw gasification stove are equipped with row material flap 5, 6 upper end one side of straw gasification stove is equipped with air inlet 20, one side that air inlet 20 was kept away from to 6 upper ends of straw gasification stove is connected with straw gasification stove steam pipe 9, one side that loading attachment 7 was kept away from to 6 of straw gasification stove is connected with combustor 4, combustor 4 is the gas combustor, feeder hopper 18 lower extreme, the one end that straw gasification stove 6 was A control valve is arranged, one side of the combustor 4, which is far away from the straw gasification furnace 6, is connected with a steam boiler 3, the upper part inside the steam boiler 3 is provided with a main water tank 12, the middle part of the upper end of the main water tank 12 is provided with a steam-water separator 11, the steam-water separator 11 is a UFS2 steam-water separator, the steam pipe 9 of the straw gasification furnace, the straw gasification furnace 6 and the upper end of the steam-water separator 11 are connected through flanges, the upper end of the steam-water separator 11 is provided with an exhaust port 10, the middle part inside the steam boiler 3 is provided with a heating pipe 17, the lower part inside the steam boiler 3 is provided with a combustion chamber 16, one side of the steam boiler 3, which is far away from the combustor 4, is connected with a waste heat furnace 2, the waste heat furnace 2 consists of a waste heat water tank 13 and a waste heat pipe 15, the heating pipe 17, the upper end of the waste heat water tank 13 is provided with an exhaust port, the lower ends of the steam boiler 3 and the waste heat water tank 13 are both provided with water inlets, and the middle of one side of the waste heat pipe 15 far away from the steam boiler 3 is provided with a smoke outlet 14.
The working process of the invention is as follows: firstly, a spiral feeding machine 19 is connected with the upper end of a straw gasification furnace 6 and the lower end of a feeding hopper 18 through flanges to form a sealed feeding structure, so that the reaction of the straw gasification furnace 6 is more stable, the lower end of the feeding hopper 18, one end of a straw gasification furnace steam pipe 9 far away from the straw gasification furnace 6 and the position of the straw gasification furnace 6 close to a burner 4 are respectively provided with a control valve, the upper ends of the straw gasification furnace steam pipe 9, the straw gasification furnace 6 and a steam-water separator 11 are connected through flanges, biomass straws are compressed and molded to form granular fuel as a raw material, air and steam are used as gasifying agents in the straw gasification furnace 6, namely the energy conversion process of the heating reaction of the biomass granular raw material in an anoxic state, the biomass generally comprises carbon, hydrogen, oxygen and other elements and ash, when the biomass straws are ignited, a small amount of oxygen, carbon and hydrogen elements are changed into combustible gases such as carbon monoxide, methane, hydrogen and the like, most energy in straws is transferred into the gas, namely, the gasification process is carried out, fuel gas is prepared for heating a boiler to replace fuel oil, a large amount of cost is saved for a user at low price, the straws are effectively utilized and are more environment-friendly, a combustor 4 is a gas combustor, a heating pipe 17, a combustor 16 and a waste heat pipe 15 are of an integrated structure, the combustor 16 is connected with a fire nozzle of the combustor 4, the fuel gas generated by a straw gasification furnace 6 is combusted through the combustor 4 and enters the combustor 16 through the fire nozzle, the heat in the combustor 16 heats water in a main water tank 12 to form steam, a steam-water separator 11 is an UFS2 steam-water separator, water drops can be filtered while the steam is discharged, the water drops are reduced to be discharged, the waste heat enters a waste heat pipe 15 through the heating pipe 17, and the waste heat pipe 15 is distributed in the middle of the interior of a waste heat water tank 13, the upper end of the waste heat water tank 13 is provided with an exhaust port, and the lower ends of the steam boiler 3 and the waste heat water tank 13 are both provided with water inlets, so that a waste heat heating device is formed, and heat is fully utilized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a straw gasification direct-fired steam boiler device, includes base (1), waste heat stove (2), steam boiler (3), straw gasifier (6) and loading attachment (7), its characterized in that: the straw gasification furnace is characterized in that one side of the upper end of the base (1) is connected with a support frame (8), a feeding device (7) is arranged in the middle of the support frame (8), the feeding device (7) is composed of a feeding hopper (18) and a spiral feeding machine (19), one side of the feeding device (7) is connected with a straw gasification furnace (6), a discharge opening cover (5) is arranged on the lower portion of the basal plane of the straw gasification furnace (6), one side of the upper end of the straw gasification furnace (6) is provided with an air inlet (20), one side of the upper end of the straw gasification furnace (6) far away from the air inlet (20) is connected with a straw gasification furnace steam pipe (9), one side of the straw gasification furnace (6) far away from the feeding device (7) is connected with a burner (4), one side of the burner (4) far away from the straw gasification furnace (, the steam-water separator (11) is arranged in the middle of the upper end of the main water tank (12), an exhaust port (10) is arranged at the upper end of the steam-water separator (11), a heating pipe (17) is arranged in the middle of the interior of the steam boiler (3), a combustion chamber (16) is arranged at the lower portion of the interior of the steam boiler (3), one side, far away from the combustor (4), of the steam boiler (3) is connected with a waste heat furnace (2), the waste heat furnace (2) is composed of a waste heat water tank (13) and a waste heat pipe (15), and a smoke exhaust port (14) is arranged in the middle of one side, far away from the steam boiler (3), of.
2. The straw gasification direct-fired steam boiler apparatus of claim 1, wherein: the lower end of the feed hopper (18), one end of the steam pipe (9) of the straw gasification furnace far away from the straw gasification furnace (6) and the part of the straw gasification furnace (6) close to the burner (4) are all provided with control valves.
3. The straw gasification direct-fired steam boiler apparatus of claim 1, wherein: the upper ends of the steam pipe (9) of the straw gasification furnace, the straw gasification furnace (6) and the steam-water separator (11) are connected through flanges.
4. The straw gasification direct-fired steam boiler apparatus of claim 1, wherein: the spiral feeding machine (19) is connected with the upper end of the straw gasification furnace (6) and the lower end of the feed hopper (18) through flanges.
5. The straw gasification direct-fired steam boiler apparatus of claim 1, wherein: the combustor (4) is a gas combustor.
6. The straw gasification direct-fired steam boiler apparatus of claim 1, wherein: the steam-water separator (11) is an UFS2 steam-water separator.
7. The straw gasification direct-fired steam boiler apparatus of claim 1, wherein: the heating pipe (17), the combustion chamber (16) and the residual heat pipe (15) are of an integrated structure, and the combustion chamber (16) is connected with a flame projecting port of the combustor (4).
8. The straw gasification direct-fired steam boiler apparatus of claim 1, wherein: the waste heat pipes (15) are distributed in the middle of the interior of the waste heat water tank (13), an exhaust port is formed in the upper end of the waste heat water tank (13), and water inlets are formed in the lower ends of the steam boiler (3) and the waste heat water tank (13).
CN202011199352.6A 2020-11-01 2020-11-01 Straw gasification direct-fired steam boiler device Pending CN112325255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011199352.6A CN112325255A (en) 2020-11-01 2020-11-01 Straw gasification direct-fired steam boiler device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011199352.6A CN112325255A (en) 2020-11-01 2020-11-01 Straw gasification direct-fired steam boiler device

Publications (1)

Publication Number Publication Date
CN112325255A true CN112325255A (en) 2021-02-05

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030136127A1 (en) * 2002-01-18 2003-07-24 Thiessen Randall J. Method and apparatus for combined steam boiler/combuster and gasifier
CN201756534U (en) * 2010-08-04 2011-03-09 合肥德博生物能源科技有限公司 Fixed bed biomass gas industrial boiler system
CN104930500A (en) * 2015-07-03 2015-09-23 无锡市特能机电有限公司 Biomass particle gas feed type gasification secondary-combustion type smoke and steam boiler system
CN206191891U (en) * 2016-10-18 2017-05-24 云南师范大学 Biological energy heating device
CN107366892A (en) * 2017-08-04 2017-11-21 南京林业大学 A kind of novel biomass gasifying steam generator
CN108728173A (en) * 2017-04-18 2018-11-02 青岛冠宝林活性炭有限公司 A kind of vertical type biomass gasification installation
CN109355103A (en) * 2018-12-18 2019-02-19 广州荣拓科技发展有限责任公司 A kind of biomass gasification device and method
CN209131140U (en) * 2018-11-16 2019-07-19 杭州明隆科技有限公司 A kind of horizontal automatic control Methods of Oil-Gas Fired Boiler
CN210419862U (en) * 2019-07-15 2020-04-28 无锡市特能机电有限公司 Biomass waste double-fire-layer gasification double-combustion type flue gas steam boiler system
CN210624907U (en) * 2019-10-25 2020-05-26 龙南县怡龙新能源开发有限公司 High-temperature high-pressure horizontal boiler with explosion-proof structure

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030136127A1 (en) * 2002-01-18 2003-07-24 Thiessen Randall J. Method and apparatus for combined steam boiler/combuster and gasifier
CN201756534U (en) * 2010-08-04 2011-03-09 合肥德博生物能源科技有限公司 Fixed bed biomass gas industrial boiler system
CN104930500A (en) * 2015-07-03 2015-09-23 无锡市特能机电有限公司 Biomass particle gas feed type gasification secondary-combustion type smoke and steam boiler system
CN206191891U (en) * 2016-10-18 2017-05-24 云南师范大学 Biological energy heating device
CN108728173A (en) * 2017-04-18 2018-11-02 青岛冠宝林活性炭有限公司 A kind of vertical type biomass gasification installation
CN107366892A (en) * 2017-08-04 2017-11-21 南京林业大学 A kind of novel biomass gasifying steam generator
CN209131140U (en) * 2018-11-16 2019-07-19 杭州明隆科技有限公司 A kind of horizontal automatic control Methods of Oil-Gas Fired Boiler
CN109355103A (en) * 2018-12-18 2019-02-19 广州荣拓科技发展有限责任公司 A kind of biomass gasification device and method
CN210419862U (en) * 2019-07-15 2020-04-28 无锡市特能机电有限公司 Biomass waste double-fire-layer gasification double-combustion type flue gas steam boiler system
CN210624907U (en) * 2019-10-25 2020-05-26 龙南县怡龙新能源开发有限公司 High-temperature high-pressure horizontal boiler with explosion-proof structure

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Application publication date: 20210205