Controllable air inlet system of biomass gas furnace

Abstract

The utility model relates to the field of biomass combustion furnaces, in particular to a controllable air inlet system of a biomass gas furnace, which comprises a dust removal box, an adsorption solution is filled in the dust removal box, and an air inlet pipe and an exhaust pipe are fixedly mounted on one side of the outer wall and the top of the dust removal box respectively. The other end of the exhaust pipe is communicated with a gas inlet of the gas furnace; a primary filtering mechanism used for filtering large-particle-size impurities in the biomass gas is arranged in the gas inlet pipe, and a purifying mechanism used for cleaning impurities in a solution is arranged in the dust removal box; according to the utility model, impurities in fuel gas enter the collecting box through the communicating port, when the rotating handle is rotated, the gear connected with the rotating handle can drive all the gears to rotate together through the transmission belt, so that the rotation of the rotating plate is controlled in the gas inlet pipe, the communicating port is opened or closed, and during maintenance, the impurities in the fuel gas can be removed without closing the circulation of the fuel gas in the gas inlet pipe. And impurities falling into the collecting box are cleaned, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the field of biomass combustion furnaces, in particular to a controllable air inlet system of a biomass gas furnace. Background Art

[0002] Biomass gas is a combustible energy source that uses crop straw, forest waste, edible fungus residue, livestock manure and all combustible materials as raw materials. As fossil energy is decreasing and environmental pollution is increasing, it is particularly urgent to find new renewable energy sources and improve energy combustion efficiency. With the application and promotion of biomass gasification technology, in addition to industrial boilers, more and more industrial kilns are also beginning to use biomass gasification technology to provide heat sources.

[0003] Publication No.: CN213416790U discloses a biomass gas dust removal device, including a dust removal box, a filter liquid is inside the dust removal box, an air inlet pipe and an air outlet pipe are arranged on the dust removal box, the air inlet pipe extends into the dust removal box, and the end of the air inlet pipe is buried in the filter liquid, a filter layer is arranged on the pipe body of the air inlet pipe outside the dust removal box, an air outlet hole is arranged at the end of the air inlet pipe in the filter liquid, a heating layer is arranged at the bottom of the dust removal box, a drain pipe is arranged at the bottom of the dust removal box, the air outlet pipe is connected to the boiler through the exhaust pipe, and a filtering and dehumidifying layer is arranged on the air outlet pipe; water is used to filter dust and impurities in the gas, and the dust and impurities are precipitated at the bottom of the water for centralized treatment, and the purified gas enters the boiler for combustion, thereby improving the use effect of the gas.

[0004] In the above-mentioned prior art, the biomass gas passes through a filter layer and water before entering the gas furnace to filter out dust and impurities in the gas. However, the filter layer and water can block and contain limited dust and impurities, and require manual maintenance frequently. Therefore, we propose a controllable air intake system for a biomass gas furnace. Utility Model Content

[0005] The purpose of the utility model is to provide a controllable air inlet system for a biomass gas stove to solve the problems raised in the above background technology.

[0006] To achieve the above object, a controllable air intake system for a biomass gas stove comprises a dust removal box, the interior of which is filled with an adsorption solution, an air intake pipe and an exhaust pipe are fixedly installed on one side and the top of the outer wall of the dust removal box, respectively, and the other end of the exhaust pipe is connected to the air intake port of the gas stove;

[0007] The interior of the air inlet pipe is provided with a primary filtering mechanism for filtering large-size impurities in the biomass fuel gas, and the interior of the dust removal box is provided with a purification mechanism for cleaning impurities in the solution.

[0008] Further: the primary filtration mechanism includes a filter screen, which is detachably installed inside the intake pipe. A collection box is fixedly connected to the lower side of the intake pipe. A connecting port is provided between the intake pipe and the collection box, and the connecting port is located on the filter screen close to the intake direction.

[0009] Further: a plurality of rotating plates are arranged on the inner side of the connecting port, a rotating shaft is fixedly connected to the middle part of the rotating plates, one end of the rotating shaft extends to the outside of the air intake pipe and is fixedly connected to a gear, the outer walls of the plurality of gears are rotatably connected through a transmission belt, and a rotating handle is fixedly connected to the outer wall of the gear.

[0010] Further: the purification mechanism includes a heat insulation board, which is vertically fixedly connected to the bottom of the inner wall of the dust removal box, and an electric gate is fixedly installed inside the heat insulation board. The interior of the dust removal box is divided into an adsorption chamber and a heating chamber by the heat insulation board, and the upper side of the heating chamber is provided with a slope inclined toward the adsorption chamber, the bottom height of the adsorption chamber is higher than the bottom height of the heating chamber, and the bottom of the adsorption chamber is provided with a slope inclined toward the heating chamber.

[0011] Furthermore: a smoke exhaust pipe is fixedly installed on the outer wall of the dust removal box, and the other end of the smoke exhaust pipe is connected to the smoke exhaust port of the gas furnace.

[0012] Furthermore: a heat conduction pipe is fixedly installed inside the heating chamber, one end of the heat conduction pipe is connected to the exhaust end of the smoke exhaust pipe, the other end of the heat conduction pipe extends to the inner wall of the exhaust pipe and protrudes, and the other end of the heat conduction pipe extends to the exhaust gas treatment mechanism.

[0013] Further: a dehumidification layer is arranged inside the exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, impurities in the gas enter the collection box through the connecting port. When the handle is turned, the gear connected to the handle can drive all the gears to rotate together through the transmission belt, thereby controlling the rotation of the rotating plate in the intake pipe to open or close the connecting port. During maintenance, the impurities falling into the collection box can be cleaned without closing the gas flow in the intake pipe, which is convenient for maintenance;

[0016] 2. The exhaust gas discharged from the exhaust port of the gas furnace carries high-temperature waste heat. The high-temperature exhaust gas passes through the exhaust pipe and the heat conduction pipe. During the process, the heat is dissipated to the solution inside the heating chamber. When the exhaust gas temperature is high, the vapor evaporated on the surface of the solution after absorbing heat can be re-aggregated and liquefied on the upper side of the heating chamber and flow back into the adsorption chamber. When the exhaust gas temperature is not enough to evaporate the solution, the heated solution can also transfer heat to the adsorption chamber after the electric gate is opened, thereby promoting the absorption efficiency of the solution inside the adsorption chamber for impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a controllable air inlet system of a biomass gas stove of the utility model;

[0018] Figure 2 This is a schematic diagram of the outer side of an air inlet pipe in a controllable air inlet system of a biomass gas stove of the utility model;

[0019] Figure 3 It is a partially enlarged schematic diagram of a controllable air inlet system of a biomass gas stove of the utility model.

[0020] In the figure: 1. dust removal box; 2. air inlet pipe; 3. exhaust pipe; 4. primary filtration mechanism; 5. purification mechanism; 6. filter screen; 7. collection box; 8. connecting port; 9. rotating plate; 10. rotating shaft; 11. gear; 12. transmission belt; 13. rotating handle; 14. heat insulation board; 15. electric brake; 16. adsorption chamber; 17. heating chamber; 18. exhaust pipe; 19. heat transfer pipe; 20. dehumidification layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 , the figure shows a preferred embodiment of the utility model, a controllable air intake system of a biomass gas stove, comprising a dust removal box 1, the interior of the dust removal box 1 is filled with an adsorption solution, the adsorption solution can be water, an air intake pipe 2 and an exhaust pipe 3 are fixedly installed on one side and the top of the outer wall of the dust removal box 1, and the other end of the exhaust pipe 3 is connected to the air intake of the gas stove;

[0023] A primary filtering mechanism 4 for filtering large-size impurities in the biomass fuel gas is disposed inside the air inlet pipe 2, and a purification mechanism 5 for cleaning impurities inside the solution is disposed inside the dust removal box 1.

[0024] Specifically, the primary filtration mechanism 4 includes a filter screen 6, which is detachably installed inside the intake pipe 2. A collecting box 7 is fixedly connected to the lower side of the intake pipe 2. A connecting port 8 is provided between the intake pipe 2 and the collecting box 7. The connecting port 8 is located on the filter screen 6 close to the air intake direction; impurities intercepted by the filter screen 6 can enter the collecting box 7 through the connecting port 8.

[0025] Specifically, a plurality of rotating plates 9 are provided on the inner side of the connecting port 8, and a rotating shaft 10 is fixedly connected to the middle part of the rotating plates 9, and one end of the rotating shaft 10 extends to the outer side of the intake pipe 2 and is fixedly connected to a gear 11, and the outer walls of the plurality of gears 11 are rotatably connected by a transmission belt 12, and a rotating handle 13 is fixedly connected to the outer wall of the gear 11; when the rotating handle 13 is rotated, the gear 11 connected to the rotating handle 13 can drive all the gears 11 to rotate together through the transmission belt 12, thereby controlling the rotation of the rotating plates 9 in the intake pipe 2 to open or close the connecting port 8. It should be noted that the inner side of the transmission belt 12 is meshed with the outer wall of the gear 11, and the intake pipe 2 is a square tube at the corresponding connecting port 8. Since the connecting port 8 can be closed, during maintenance, the impurities that fall into the collecting box 7 can be cleaned without shutting off the gas flow in the intake pipe 2, which is convenient for maintenance.

[0026] Specifically, the purification mechanism 5 includes a heat insulation board 14, which is vertically fixedly connected to the bottom of the inner wall of the dust removal box 1, and an electric gate 15 is fixedly installed inside the heat insulation board 14. The interior of the dust removal box 1 is divided into an adsorption chamber 16 and a heating chamber 17 by the heat insulation board 14. The upper side of the heating chamber 17 is provided with a slope inclined toward the adsorption chamber 16, the bottom height of the adsorption chamber 16 is higher than the bottom height of the heating chamber 17, and the bottom of the adsorption chamber 16 is provided with a slope inclined toward the heating chamber 17; Figure 1 As shown, the biomass gas can enter the bottom of the adsorption chamber 16 through the air inlet pipe 2, so that the outflowing gas can absorb impurities by the adsorption solution, and finally float up through the exhaust pipe 3 into the gas furnace. After the electric gate 15 inside the insulation board 14 is opened, the liquid with sediment at the bottom of the adsorption chamber 16 can enter the heating chamber 17.

[0027] Among them, a smoke exhaust pipe 18 is fixedly installed on the outer wall of the dust removal box 1, and the other end of the smoke exhaust pipe 18 is connected to the smoke exhaust port of the gas furnace; it can be understood that the exhaust gas discharged from the smoke exhaust port of the gas furnace carries high-temperature waste heat, and the high-temperature exhaust gas passes through the smoke exhaust pipe 18 and the heat conduction pipe 19. During the process, the heat is dissipated to the solution inside the heating chamber 17. When the exhaust gas temperature is high, the aerosol evaporated on the surface of the solution after absorbing heat can be re-aggregated and liquefied on the upper side of the heating chamber 17, and flow back into the adsorption chamber 16. When the exhaust gas temperature is not enough to evaporate the solution, the heated solution can also transfer heat to the adsorption chamber 16 after the electric gate 15 is opened, thereby promoting the absorption efficiency of the impurities by the solution inside the adsorption chamber 16.

[0028] Among them, a heat pipe 19 is fixedly installed inside the heating chamber 17, one end of the heat pipe 19 is connected to the exhaust end of the smoke exhaust pipe 18, the other end of the heat pipe 19 extends to the inner wall of the exhaust pipe 3 and protrudes out, and the other end of the heat pipe 19 extends to the exhaust gas treatment mechanism not shown in the figure and discharged after purification; the heat pipe 19 is located in the internal part of the heating chamber 17 and is used to conduct heat to the solution inside the heating chamber 17, and is located in the internal part of the exhaust pipe 3 to assist the gas in drying, thereby reducing the burden on the dehumidification layer 20.

[0029] A dehumidification layer 20 is disposed inside the exhaust pipe 3 .

[0030] In this embodiment, the gas is transported to the dust removal box 1 through the intake pipe 2, the filter 6 intercepts the impurities in the gas, and enters the collection box 7 through the connecting port 8. When the handle 13 is turned, the gear 11 connected to the handle 13 can drive all the gears 11 to rotate together through the transmission belt 12, thereby controlling the rotation of the rotating plate 9 in the intake pipe 2 to open or close the connecting port 8. During maintenance, the impurities falling into the collection box 7 can be cleaned without closing the gas flow in the intake pipe 2, which is convenient for maintenance;

[0031] Subsequently, the biomass fuel gas can enter the bottom of the adsorption chamber 16 through the air inlet pipe 2, so that the outflowing fuel gas can absorb impurities by the adsorption solution, and finally float up through the exhaust pipe 3 into the gas furnace. After the electric gate 15 inside the insulation board 14 is opened, the liquid with sediment at the bottom of the adsorption chamber 16 can enter the heating chamber 17. During the process, when the exhaust gas temperature is high, the mist evaporated from the surface of the solution after absorbing heat can re-aggregate and liquefy on the upper side of the heating chamber 17 and flow back into the adsorption chamber 16. When the exhaust gas temperature is not enough to evaporate the solution, the heated solution can also transfer heat to the adsorption chamber 16 after the electric gate 15 is opened, thereby promoting the absorption efficiency of the impurities by the solution inside the adsorption chamber 16.

[0032] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A controllable air intake system for a biomass gas stove, comprising a dust removal box (1), the interior of the dust removal box (1) is filled with an adsorption solution, an air intake pipe (2) and an exhaust pipe (3) are fixedly mounted on one side and the top of the outer wall of the dust removal box (1), respectively, and the other end of the exhaust pipe (3) is connected to the air intake of the gas stove; Features: The interior of the air inlet pipe (2) is provided with a primary filtering mechanism (4) for filtering large-size impurities in the biomass fuel gas, and the interior of the dust removal box (1) is provided with a purification mechanism (5) for cleaning impurities in the solution.

2. The controllable air inlet system of a biomass gas stove according to claim 1, characterized in that: The primary filtering mechanism (4) comprises a filter screen (6), the filter screen (6) being detachably mounted inside the air intake pipe (2), a collecting box (7) being fixedly connected to the lower side of the air intake pipe (2), a connecting port (8) being provided between the air intake pipe (2) and the collecting box (7), the connecting port (8) being located on the filter screen (6) close to the air intake direction.

3. The controllable air inlet system of a biomass gas stove according to claim 2, characterized in that: A plurality of rotating plates (9) are arranged on the inner side of the connecting port (8), the middle part of each rotating plate (9) is fixedly connected to a rotating shaft (10), one end of each rotating shaft (10) extends to the outer side of the air intake pipe (2) and is fixedly connected to a gear (11), the outer walls of the plurality of gears (11) are rotatably connected via a transmission belt (12), and the outer wall of the gear (11) is fixedly connected to a rotating handle (13).

4. The controllable air inlet system of a biomass gas stove according to claim 1, characterized in that: The purification mechanism (5) comprises a heat insulation board (14), the heat insulation board (14) is vertically fixedly connected to the bottom of the inner wall of the dust removal box (1), an electric gate (15) is fixedly installed inside the heat insulation board (14), the interior of the dust removal box (1) is divided into an adsorption chamber (16) and a heating chamber (17) by the heat insulation board (14), the upper side of the heating chamber (17) is provided with a slope inclined toward the adsorption chamber (16), the bottom height of the adsorption chamber (16) is higher than the bottom height of the heating chamber (17), and the bottom of the adsorption chamber (16) is provided with a slope inclined toward the heating chamber (17).

5. The controllable air inlet system of a biomass gas stove according to claim 4, characterized in that: A smoke exhaust pipe (18) is fixedly mounted on the outer wall of the dust removal box (1), and the other end of the smoke exhaust pipe (18) is connected to the smoke exhaust port of the gas furnace.

6. The controllable air inlet system of a biomass gas stove according to claim 5, characterized in that: A heat conducting pipe (19) is fixedly installed inside the heating chamber (17); one end of the heat conducting pipe (19) is connected to the exhaust end of the smoke exhaust pipe (18); the other end of the heat conducting pipe (19) extends to the inner wall of the exhaust pipe (3) and protrudes; the other end of the heat conducting pipe (19) extends to the exhaust gas treatment mechanism.

7. The controllable air inlet system of a biomass gas stove according to claim 1, characterized in that: A dehumidification layer (20) is provided inside the exhaust pipe (3).

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