CN112625753B - Cooling device for biomass gas production - Google Patents
Cooling device for biomass gas production Download PDFInfo
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- CN112625753B CN112625753B CN202011506658.1A CN202011506658A CN112625753B CN 112625753 B CN112625753 B CN 112625753B CN 202011506658 A CN202011506658 A CN 202011506658A CN 112625753 B CN112625753 B CN 112625753B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0956—Air or oxygen enriched air
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1246—Heating the gasifier by external or indirect heating
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- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a cooling device for biomass gas production, which comprises an air compression fan, a first heat exchange tube, a second heat exchange tube, a third heat exchange tube, a grate and a fourth heat exchange tube, wherein the grate comprises an outer connecting ring and a bearing plate, the upper side of the outer connecting ring is fixedly connected to the lower side edge of a gas furnace tank body, the second heat exchange tube comprises a vertical heat exchange tube and a transverse heat exchange tube, a plurality of transverse heat exchange tubes are embedded in the middle of the tank wall of the gas furnace tank body at equal intervals, biomass fuel is added into a feed inlet of the gas furnace tank body, air is introduced into the gas furnace tank body, a second valve communicated with a first air supply tube and a first communicating tube and a second valve communicated with a fourth communicating tube and a fourth communicating tube are opened, so that the heat of the gas furnace tank body is radiated, the opening number of the second valve and the third valve is gradually increased, the opening number of the fourth valve is increased, and the temperature in the gas furnace tank body is ensured, the utilization rate of energy is improved, and the energy consumption is saved.
Description
Technical Field
The invention relates to the field of storage, in particular to a cooling device for biomass gas production.
Background
With the rapid development of industry and the high-speed promotion of urbanization process, energy is short, the problem of environmental pollution is the focus of current social attention, the phenomena of straw burning and old firewood stove use in rural areas still exist, a large amount of dust and greenhouse gas are also discharged, the biomass energy waste is mainly crop waste at present, a large part of the biomass energy waste can be used as energy, and in addition, most of forestry and wood processing waste can also be used as energy.
The biomass gas produced by the biomass gasification furnace belongs to green new energy and has strong vitality, the raw materials produced by the biomass gas are crop straws, forest and wood wastes, edible fungus residues, cattle, sheep and livestock manures and all combustible substances, the biomass gas is an inexhaustible renewable resource, can solve the problem of all-day living energy (cooking, heating and showering), can be burnt like liquefied gas, can completely change the life style of smoking and burning in rural areas of China, can completely replace the traditional firewood stove to replace the liquefied gas, and has wider application prospect in the industrial aspect, and not only can be directly used as industrial gas, but also can be supplied to power generation equipment for power generation.
The biomass gasification furnace is a commonly used biomass gas production device, but the existing biomass gasification furnace is still in a starting stage, because the biomass gas needs high temperature of one thousand to two hundred degrees when being generated, a fire grate and a furnace body need to be protected to prevent the furnace body and the fire grate from being damaged, but the existing cooling device is often a cooling oil device, is very complicated, and the part of energy is not utilized but lost, so that the utilization rate of the energy cannot be improved, and a heat exchange pipeline needs to be redesigned for the cooling device.
Disclosure of Invention
The invention aims to solve the problems and the defects, and provides a cooling device for biomass gas production, which improves the overall working efficiency.
The purpose of the invention can be realized by the following technical scheme: a cooling device for biomass gas production comprises an air compression fan, a first heat exchange pipe, a second heat exchange pipe, a third heat exchange pipe, a grate and a fourth heat exchange pipe, wherein the air compression fan is communicated with a first air supply pipe, the output end of the first air supply pipe is respectively communicated with the first heat exchange pipe, a first communicating pipe and a second communicating pipe, a gas output pipe is arranged on the inner side of the first heat exchange pipe, the input end of the gas output pipe is inserted into the top side of the inner part of a gas furnace tank body, the second heat exchange pipe is embedded in the inner wall of the gas furnace tank body, the upper part of the outer side of the second heat exchange pipe is communicated with at least four first communicating pipes, the bottom of the gas furnace tank body is fixedly connected with the grate and communicated with the grate, the third heat exchange pipe is embedded in the grate, the upper side of the third heat exchange pipe is respectively communicated with a plurality of third communicating pipes, the lower side of the third heat exchange pipe is communicated with a pair of fourth communicating pipes, and the third communicating pipes are communicated with the inner side of the annular air supply pipe, the outside of annular blast pipe is linked together with four at least second communicating pipes, the switching pipe is installed at the downside center of grate, the row's sediment fill is installed at the downside edge of grate, the lower extreme intercommunication of switching pipe has the fourth heat exchange tube, the inboard middle part at row's sediment fill is installed to the fourth heat exchange tube, the second blast pipe is installed to the bottom bilateral symmetry of fourth heat exchange tube, the bottom of second blast pipe runs through the headwall of row's sediment fill and with arrange sediment fill sealing connection, first heat exchange tube, second blast pipe and fourth communicating pipe all communicate with the input of four-way pipe, the output intercommunication of four-way pipe has air input pipe, air input pipe runs through the jar wall of the gas furnace jar body and with gas furnace jar body sealing connection, the mouth of pipe of air input pipe is deep into the inside of the gas furnace jar body, the top of the gas furnace jar body is provided with the feed inlet, the bottom of row's sediment fill is provided with the slag discharge mouth.
As a further scheme of the invention, a first valve is arranged at the communication position of the first air supply pipe and the first heat exchange pipe and the communication position of the first heat exchange pipe and the four-way pipe, a second valve is arranged at the communication position of the first air supply pipe and the first communication pipe, the input port of each first communication pipe and the communication position of the fourth communication pipe and the four-way pipe, a third valve is arranged at the communication position of the first air supply pipe and the second communication pipe and the input port of the second communication pipe, and a fourth valve is arranged at the communication position of the second air supply pipe and the four-way pipe.
As a further scheme, the fire grate comprises an outer connecting ring and a bearing plate, the upper side of the outer connecting ring is fixedly connected to the lower side edge of a gas furnace tank body, the lower side of the outer connecting ring is fixedly connected to the upper side edge of a slag discharging hopper, a plurality of slag falling holes are uniformly formed in the bearing plate in an array mode, the upper ends of the hole walls of the slag falling holes are obliquely arranged, third heat exchange tubes are embedded in the outer connecting ring and the bearing plate, each section of the third heat exchange tube is embedded between two adjacent slag falling holes, the third heat exchange tubes are net-shaped, the joint of each pipeline in the central area of each third heat exchange tube is communicated with the input end of a transfer tube, and a stirrer is arranged at a slag discharging port of the slag discharging hopper.
As a further scheme of the invention, the second heat exchange tubes comprise vertical heat exchange tubes and horizontal heat exchange tubes, a plurality of horizontal heat exchange tubes are embedded in the middle of the wall of the gas furnace tank body at equal intervals, adjacent horizontal heat exchange tubes are communicated through a plurality of vertical heat exchange tubes uniformly arranged in an annular array, the vertical heat exchange tubes are arranged in a staggered manner, and the outer sides of the horizontal heat exchange tubes at the uppermost layer are communicated with a plurality of first communication tubes.
As a further scheme of the invention, the fourth heat exchange tube extends downwards in a spiral shape with the radius gradually reduced, an observation window is arranged on the upper side of the gas furnace tank body, the observation window and the gas output tube are symmetrically arranged on two sides of a feed inlet of the gas furnace tank body, a first temperature sensor is arranged on the inner wall of the gas furnace tank body, a second temperature sensor is arranged on the upper side surface of the bearing plate, a thermometer and a barometer are arranged at the input end of the first valve, the input end of the second valve, the input end of the third valve and the input end of the fourth valve, and a gas detection sensor and a third temperature sensor are arranged at the output end of the gas output tube.
The working method of the cooling device for biomass gas production comprises the following steps:
the method comprises the following steps: adding biomass fuel into a feed inlet of a gas furnace tank body, igniting and opening a first valve, closing other valves, and introducing air into the gas furnace tank body through an air compression fan, a first air supply pipe, a first heat exchange pipe, a four-way pipe and an air input pipe so as to react with the biomass fuel to produce biomass gas;
step two: obtaining the temperature of the gas furnace tank body through a first temperature sensor, and opening a second valve communicated with a first air supply pipe and a first communicating pipe and a second valve communicated with a fourth communicating pipe and a four-way pipe so as to radiate the gas furnace tank body, and simultaneously introducing heated air into the gas furnace tank body so as to keep the temperature in the gas furnace tank body;
step three: obtaining the temperature of the fire grate through a second temperature sensor, and opening a third valve communicated with the first air supply pipe and the second communicating pipe and a fourth valve communicated with the second air supply pipe and the four-way pipe, so that the fire grate is cooled and heated air is introduced into the gas furnace tank body;
step four: increasing the number of the air compression fans, communicating all the second valves and the third valves with the air compression fans, gradually increasing the opening numbers of the second valves and the third valves according to the reading of the thermometer and the barometer, and increasing the opening number of the fourth valves;
step five: the reaction data in the gas furnace tank body is obtained through the gas detection sensor, the opening degrees of the first valve, the second valve, the third valve and the fourth valve are adjusted, the heat exchange efficiency is adjusted, and the temperature in the gas furnace tank body is kept, so that the reaction degree is optimized, and the concentration ratio of combustible gas in the gas is improved;
step six: the temperature of the fuel gas output by the fuel gas output pipe is obtained according to the third temperature sensor, and the opening degree of the first valve is adjusted, so that the heat exchange efficiency of the first heat exchange pipe is adjusted, and the temperature of the fuel gas is reduced.
The invention has the beneficial effects that: adding biomass fuel into a feed inlet of a gas furnace tank body, introducing air into the gas furnace tank body through an air compression fan, a first air supply pipe, a first heat exchange pipe, a four-way pipe and an air input pipe to produce biomass gas, obtaining the temperature of the gas furnace tank body through a first temperature sensor, opening a second valve communicated with the first air supply pipe and the first communication pipe and a second valve communicated with the fourth communication pipe and the four-way pipe to radiate the gas furnace tank body, introducing heated air into the gas furnace tank body to maintain the temperature in the gas furnace tank body, obtaining the temperature of a fire grate through a second temperature sensor, opening a third valve communicated with the first air supply pipe and the second communication pipe and a fourth valve communicated with the second air supply pipe and the four-way pipe to radiate the fire grate, and introducing the heated air into the gas furnace tank body, then increasing the number of air compression fans, communicating all the second valves and the third valves with the air compression fans, gradually increasing the opening numbers of the second valves and the third valves and increasing the opening number of the fourth valves according to the readings of the thermometer and the barometer, obtaining reaction data in the gas furnace tank body by the gas detection sensor, adjusting the opening degrees of the first valves, the second valves, the third valves and the fourth valves, adjusting the heat exchange efficiency, maintaining the temperature in the gas furnace tank body, optimizing the reaction degree, improving the concentration ratio of combustible gas in the gas, obtaining the temperature of the gas output by the gas output pipe according to the third temperature sensor, adjusting the opening degree of the first valves, adjusting the heat exchange efficiency of the first heat exchange pipe, reducing the temperature of the gas, and reducing the temperature of the gas output pipe, the gas temperature of the gas furnace tank body, the fire grate and the gas output pipe by continuously exchanging heat, thereby protect gas furnace tank body and grate and protect the equipment that uses the gas afterwards to avoid damaging other equipment because the gas temperature is too high, let in the internal reaction with biomass fuel of gas furnace tank with the air that absorbs the heat simultaneously, guarantee the internal temperature of gas furnace tank, improve the utilization ratio of energy, energy saving consumption.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of circle A of FIG. 1;
FIG. 3 is a schematic top view of the grate of the present invention;
FIG. 4 is a schematic top view of a third heat exchange tube of the present invention;
FIG. 5 is a schematic top view of the annular air delivery duct, the second communicating tube and the third communicating tube according to the present invention;
FIG. 6 is a schematic side view of a third heat exchange tube of the present invention;
in the figure: 1. an air compression fan; 2. a first blast pipe; 3. a first heat exchange tube; 4. a second heat exchange tube; 5. an annular blast pipe; 6. a third heat exchange tube; 7. a second blast pipe; 8. a grate; 9. a slag falling hole; 10. a first communication pipe; 11. a second communicating pipe; 12. a fourth heat exchange tube; 13. a transfer tube; 14. a third communicating pipe; 15. a gas furnace tank body; 16. a fourth communicating pipe; 17. a four-way pipe; 18. a first valve; 19. a second valve; 20. a third valve; 21. a fourth valve; 22. a slag discharge hopper; 23. a gas output pipe; 24. an outer connecting ring; 25. a bearing plate; 26. a vertical heat exchange pipe; 27. a transverse heat exchange tube.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-6: a cooling device for biomass gas production comprises an air compression fan 1, a first heat exchange pipe 3, a second heat exchange pipe 4, a third heat exchange pipe 6, a fire grate 8 and a fourth heat exchange pipe 12, wherein the air compression fan 1 is communicated with a first air supply pipe 2, the output end of the first air supply pipe 2 is respectively communicated with the first heat exchange pipe 3, a first communicating pipe 10 and a second communicating pipe 11, a gas output pipe 23 is installed on the inner side of the first heat exchange pipe 3, the input end of the gas output pipe 23 is inserted into the top side of the inside of a gas furnace tank body 15, the second heat exchange pipe 4 is embedded in the inner wall of the gas furnace tank body 15, the upper part of the outer side of the second heat exchange pipe 4 is communicated with at least four first communicating pipes 10, the bottom of the gas furnace tank body 15 is fixedly connected with the fire grate 8 and communicated with the fire grate 8, the third heat exchange pipe 6 is embedded in the fire grate 8, the upper side of the third heat exchange tube 6 is respectively communicated with a plurality of third communicating tubes 14, the lower side of the third heat exchange tube 6 is communicated with a pair of fourth communicating tubes 16, the third communicating tubes 14 are communicated with the inner side of the annular blast pipe 5, the outer side of the annular blast pipe 5 is communicated with at least four second communicating tubes 11, an adapter pipe 13 is installed at the center of the lower side surface of the grate 8, a deslagging hopper 22 is installed at the edge of the lower side surface of the grate 8, the lower end of the adapter pipe 13 is communicated with a fourth heat exchange tube 12, the fourth heat exchange tube 12 is installed in the middle of the inner side of the deslagging hopper 22, the second blast pipes 7 are symmetrically installed at the two sides of the bottom of the fourth heat exchange tube 12, the bottom ends of the second blast pipes 7 penetrate through the wall of the deslagging hopper 22 and are hermetically connected with the deslagging hopper 22, and the first heat exchange tube 3, the second blast pipes 7 and the fourth communicating tubes 16 are all communicated with the input ends of the four communicating tubes 17, the output end of the four-way pipe 17 is communicated with an air input pipe, the air input pipe penetrates through the wall of the gas furnace tank body 15 and is in sealing connection with the gas furnace tank body 15, the pipe orifice of the air input pipe extends into the gas furnace tank body 15, the top of the gas furnace tank body 15 is provided with a feeding hole, and the bottom of the slag discharge hopper 22 is provided with a slag discharge hole.
The grate 8 includes outer clamping ring 24 and accepts the board 25, the upside fixed connection of outer clamping ring 24 is on the downside edge of the gas furnace jar body 15, the downside fixed connection of outer clamping ring 24 is on the upside edge of row's sediment fill 22, it evenly is provided with a plurality of cinder holes 9 that fall to accept to go up the board 25 in an array, the pore wall upper end that falls cinder holes 9 is the slope setting, outer clamping ring 24 with accept the board 25 and all bury third heat exchange tube 6 and every section third heat exchange tube 6 and bury underground between two adjacent sediment holes 9 that fall, third heat exchange tube 6 is netted, and 6 central regional every pipeline handing-over department of third heat exchange tube all communicates with the input of adapter tube 13, arrange sediment fill 22's sediment department and be provided with the agitator.
The second heat exchange tube 4 is including erecting heat exchange tube 26 and horizontal heat exchange tube 27, and is a plurality of horizontal heat exchange tube 27 is equidistant to be buried underground at the jar wall middle part of the gas furnace jar body 15, and adjacent horizontal heat exchange tube 27 is linked together through a plurality of perpendicular heat exchange tubes 26 that are the even setting of annular array, and is a plurality of perpendicular heat exchange tube 26 is crisscross to be set up, and the outside intercommunication that is located the horizontal heat exchange tube 27 of the superiors has a plurality of first connecting pipes 10.
Fourth heat exchange tube 12 is the spiral line shape downwardly extending that the radius reduces gradually, the upside of the gas furnace tank body 15 is provided with observation window and the both sides of the symmetrical feed inlet that sets up at the gas furnace tank body 15 of gas output tube 23, install first temperature sensor on the inner wall of the gas furnace tank body 15, accept the side-mounting of board 25 and have the second temperature sensor, thermometer and barometer are all installed to the input of first valve 18, the input of second valve 19, the input of third valve 20 and the input of fourth valve 21, gaseous detection sensor and third temperature sensor are installed to the output of gas output tube 23.
The working method of the cooling device for biomass gas production comprises the following steps:
the method comprises the following steps: adding biomass fuel into a feed port of a gas furnace tank body 15, igniting and opening a first valve 18, closing other valves, and introducing air into the gas furnace tank body 15 through an air compression fan 1, a first air supply pipe 2, a first heat exchange pipe 3, a four-way pipe 17 and an air input pipe so as to react with the biomass fuel, thereby producing biomass gas;
step two: obtaining the temperature of the gas furnace tank 15 through a first temperature sensor, and opening a second valve 19 communicating the first air supply pipe 2 and the first communication pipe 10 and a second valve 19 communicating the fourth communication pipe 16 and the four-way pipe 17, thereby radiating the heat of the gas furnace tank 15, and simultaneously introducing heated air into the gas furnace tank 15, thereby maintaining the temperature inside the gas furnace tank 15;
step three: obtaining the temperature of the fire grate 8 through a second temperature sensor, and opening a third valve 20 communicated with the first air supply pipe 2 and the second communicating pipe 11 and a fourth valve 21 communicated with the second air supply pipe 7 and the four-way pipe 17, so as to radiate heat of the fire grate 8 and introduce heated air into the gas furnace tank 15;
step four: increasing the number of the air compression fans 1, communicating all the second valves 19 and the third valves 20 with the air compression fans 1, gradually increasing the opening numbers of the second valves 19 and the third valves 20 according to the reading of the thermometer and the barometer, and increasing the opening number of the fourth valves 21;
step five: obtaining reaction data in the gas furnace tank body 15 through a gas detection sensor, adjusting the opening degrees of a first valve 18, a second valve 19, a third valve 20 and a fourth valve 21, adjusting the heat exchange efficiency, and keeping the temperature in the gas furnace tank body 15, thereby optimizing the reaction degree and improving the concentration ratio of combustible gas in gas;
step six: the temperature of the fuel gas output by the fuel gas output pipe 23 is obtained according to the third temperature sensor, and the opening degree of the first valve 18 is adjusted, so that the heat exchange efficiency of the first heat exchange pipe 3 is adjusted, and the temperature of the fuel gas is reduced.
When the biomass fuel gas furnace is used, a worker firstly adds biomass fuel into a feed inlet of a gas furnace tank body 15, ignites and opens a first valve 18, closes other valves, introduces air into the gas furnace tank body 15 through an air compression fan 1, a first air supply pipe 2, a first heat exchange pipe 3, a four-way pipe 17 and an air input pipe so as to react with the biomass fuel to produce biomass fuel gas, obtains the temperature of the gas furnace tank body 15 through a first temperature sensor, opens a second valve 19 communicating the first air supply pipe 2 and a first communicating pipe 10 and a second valve 19 communicating a fourth communicating pipe 16 and the four-way pipe 17 so as to radiate the heat of the gas furnace tank body 15, simultaneously introduces heated air into the gas furnace tank body 15 so as to keep the temperature in the gas furnace tank body 15, and obtains the temperature of a fire grate 8 through the second temperature sensor, and opening a third valve 20 communicating the first blast pipe 2 and the second communicating pipe 11 and a fourth valve 21 communicating the second blast pipe 7 and the four-way pipe 17, thereby radiating heat from the grate 8 and introducing heated air into the gas furnace tank 15, increasing the number of the air compression fans 1, communicating all the second valve 19 and the third valve 20 with the air compression fans 1, gradually increasing the number of the second valve 19 and the third valve 20 and the number of the fourth valve 21 according to the readings of the thermometer and the barometer, obtaining reaction data in the gas furnace tank 15 by a gas detection sensor, adjusting the opening degrees of the first valve 18, the second valve 19, the third valve 20 and the fourth valve 21, adjusting the heat exchange efficiency, maintaining the temperature in the gas furnace tank 15, thereby optimizing the reaction degree and improving the concentration ratio of combustible gas in the gas, and then the temperature of the fuel gas output by the fuel gas output pipe 23 is obtained according to the third temperature sensor, and the opening degree of the first valve 18 is adjusted, so that the heat exchange efficiency of the first heat exchange pipe 3 is adjusted, and the temperature of the fuel gas is reduced.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. The cooling device for biomass gas production is characterized by comprising an air compression fan (1), a first heat exchange pipe (3), a second heat exchange pipe (4), a third heat exchange pipe (6), a grate (8) and a fourth heat exchange pipe (12), wherein the air compression fan (1) is communicated with a first air supply pipe (2), the output end of the first air supply pipe (2) is respectively communicated with the first heat exchange pipe (3), a first communicating pipe (10) and a second communicating pipe (11), a gas output pipe (23) is installed on the inner side of the first heat exchange pipe (3), the input end of the gas output pipe (23) is inserted into the top side of the inner part of a gas furnace tank body (15), the second heat exchange pipe (4) is embedded in the inner wall of the gas furnace tank body (15), the upper part of the outer side of the second heat exchange pipe (4) is communicated with at least four first communicating pipes (10), the bottom of the gas furnace tank body (15) is fixedly connected with a grate (8) and communicated with the grate (8), a third heat exchange pipe (6) is buried in the grate (8), the upper side of the third heat exchange pipe (6) is respectively communicated with a plurality of third communicating pipes (14), the lower side of each third heat exchange pipe (6) is communicated with a pair of fourth communicating pipes (16), each third communicating pipe (14) is communicated with the inner side of each annular air supply pipe (5), the outer sides of the annular air supply pipes (5) are communicated with at least four second communicating pipes (11), a transfer pipe (13) is installed at the center of the lower side of the grate (8), a slag discharge hopper (22) is installed at the edge of the lower side of the grate (8), the lower end of each transfer pipe (13) is communicated with a fourth heat exchange pipe (12), and the fourth heat exchange pipes (12) are installed in the middle of the inner side of the slag discharge hopper (22), second air supply pipes (7) are symmetrically arranged on two sides of the bottom of the fourth heat exchange pipe (12), the bottom end of each second air supply pipe (7) penetrates through the wall of the slag discharge hopper (22) and is in sealing connection with the slag discharge hopper (22), the first heat exchange pipe (3), the second air supply pipe (7) and the fourth communicating pipe (16) are all communicated with the input end of the four-way pipe (17), the output end of the four-way pipe (17) is communicated with an air input pipe, the air input pipe penetrates through the wall of the gas furnace tank body (15) and is in sealing connection with the gas furnace tank body (15), the pipe orifice of the air input pipe penetrates into the gas furnace tank body (15), a feed inlet is formed in the top of the gas furnace tank body (15), a slag discharge port is formed in the bottom of the slag discharge hopper (22), a first valve (18) is arranged at the communication position of the first air supply pipe (2) and the first heat exchange pipe (3) and the communication position of the first heat exchange pipe (3) and the four-way pipe (17), second valves (19) are installed at the communication position of the first air supply pipe (2) and the first communicating pipe (10), the input port of each first communicating pipe (10) and the communication position of the fourth communicating pipe (16) and the fourth communicating pipe (17), third valves (20) are installed at the communication position of the first air supply pipe (2) and the second communicating pipe (11) and the input port of the second communicating pipe (11), and fourth valves (21) are installed at the communication position of the second air supply pipe (7) and the fourth communicating pipe (17).
2. The cooling device for biomass gas production according to claim 1, wherein the fire grate (8) comprises an outer connecting ring (24) and a bearing plate (25), the upper side of the outer connecting ring (24) is fixedly connected to the lower side edge of the gas furnace tank body (15), the lower side of the outer connecting ring (24) is fixedly connected to the upper side edge of the slag discharging hopper (22), a plurality of slag falling holes (9) are uniformly arranged on the bearing plate (25) in an array manner, the upper ends of the hole walls of the slag falling holes (9) are obliquely arranged, the outer connecting ring (24) and the bearing plate (25) are both embedded with a third heat exchange tube (6), each section of the third heat exchange tube (6) is embedded between two adjacent slag falling holes (9), the third heat exchange tube (6) is net-shaped, and the joint of each pipeline in the central area of the third heat exchange tube (6) is communicated with the input end of the adapter tube (13), arrange the sediment mouth department of sediment fill (22) and be provided with the agitator, thermometer and barometer are all installed to the input of input, the input of second valve (19), the input of third valve (20) of first valve (18) and the input of fourth valve (21), the side-mounting that goes up of accepting board (25) has second temperature sensor.
3. The cooling device for biomass gas production as claimed in claim 2, wherein the second heat exchange tube (4) comprises vertical heat exchange tubes (26) and horizontal heat exchange tubes (27), a plurality of the horizontal heat exchange tubes (27) are embedded in the middle of the wall of the gas furnace tank body (15) at equal intervals, the adjacent horizontal heat exchange tubes (27) are communicated through a plurality of vertical heat exchange tubes (26) which are uniformly arranged in an annular array, a plurality of the vertical heat exchange tubes (26) are arranged in a staggered manner, and the outer sides of the horizontal heat exchange tubes (27) at the uppermost layer are communicated with a plurality of first communication tubes (10).
4. The cooling device for biomass gas production according to claim 3, wherein the fourth heat exchange pipe (12) is a spiral line with gradually decreasing radius and extends downwards, the upper side of the gas furnace tank body (15) is provided with an observation window, the observation window and the gas output pipe (23) are symmetrically arranged at two sides of the feeding hole of the gas furnace tank body (15), the inner wall of the gas furnace tank body (15) is provided with the first temperature sensor, and the output end of the gas output pipe (23) is provided with the gas detection sensor and the third temperature sensor.
5. The cooling device for biomass gas production according to claim 1, wherein the working method of the cooling device for biomass gas production comprises the following steps:
the method comprises the following steps: adding biomass fuel into a feed inlet of a gas furnace tank body (15), igniting and opening a first valve (18), closing other valves, and introducing air into the gas furnace tank body (15) through an air compression fan (1), a first air supply pipe (2), a first heat exchange pipe (3), a four-way pipe (17) and an air input pipe so as to react with the biomass fuel, thereby producing biomass gas;
step two: obtaining the temperature of a gas furnace tank body (15) through a first temperature sensor, and opening a second valve (19) communicated with a first air supply pipe (2) and a first communicating pipe (10) and a second valve (19) communicated with a fourth communicating pipe (16) and a four-way pipe (17) so as to radiate the gas furnace tank body (15), and simultaneously introducing heated air into the gas furnace tank body (15) so as to keep the temperature in the gas furnace tank body (15);
step three: obtaining the temperature of the fire grate (8) through a second temperature sensor, and opening a third valve (20) communicated with the first air supply pipe (2) and the second communicating pipe (11) and a fourth valve (21) communicated with the second air supply pipe (7) and the four-way pipe (17), so that the fire grate (8) is radiated, and heated air is introduced into the gas furnace tank body (15);
step four: increasing the number of the air compression fans (1), communicating all the second valves (19) and the third valves (20) with the air compression fans (1), gradually increasing the opening numbers of the second valves (19) and the third valves (20) according to the readings of the thermometer and the barometer, and increasing the opening number of the fourth valves (21);
step five: the reaction data in the gas furnace tank body (15) is obtained through the gas detection sensor, the opening degrees of the first valve (18), the second valve (19), the third valve (20) and the fourth valve (21) are adjusted, the heat exchange efficiency is adjusted, and the temperature in the gas furnace tank body (15) is kept, so that the reaction degree is optimized, and the concentration ratio of combustible gas in gas is improved;
step six: the temperature of the fuel gas output by the fuel gas output pipe (23) is obtained according to the third temperature sensor, and the opening degree of the first valve (18) is adjusted, so that the heat exchange efficiency of the first heat exchange pipe (3) is adjusted, and the temperature of the fuel gas is reduced.
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| KR102181822B1 (en) * | 2019-06-15 | 2020-11-24 | 홍영기 | Pyrolysis and Gasification System using combustible renewable fuels including biomass |
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| CN101191059A (en) * | 2006-11-22 | 2008-06-04 | 周开根 | Dynamics gasification furnace and exhaust heat boiler composed by the same |
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