Combustion temperature regulation and control mechanism of biomass boiler

Abstract

The utility model discloses a combustion temperature regulation and control mechanism of a biomass boiler, and relates to the technical field of biomass boilers. The energy-saving furnace comprises a furnace shell, a combustion temperature regulation and control assembly and an air inlet temperature regulation assembly, a furnace pipe is fixedly connected to the bottom of an inner cavity of the furnace shell, a fire grate is fixedly connected between the two sides of an inner cavity of the furnace pipe, the combustion temperature regulation and control assembly comprises a control box, and the front side of the control box is fixedly connected with the furnace shell. The combustion temperature regulation and control assembly is used for regulating and controlling the combustion temperature of biomass fuel, supply of the fuel is stopped when the temperature in the furnace pipe is overheated and needs to be reduced, the adjusting mechanism is used for controlling the two connecting frames and the push wheel to move, the push wheel does not extrude the thermal insulation baffle after moving, and the thermal insulation baffle does not extrude the biomass fuel. The heat insulation baffle inclines and shields the fuel, heat dissipation of the fuel is reduced, the pressure in the furnace shell is reduced, the fuel continuously burns in the temperature control process, a large amount of smoke is not generated, and a large amount of coking in the furnace pipe is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of biomass boiler, especially relates to biomass boiler combustion temperature regulation mechanism. BACKGROUND

[0002] The biomass boiler is a kind of boiler with biomass energy as fuel, and the biomass boiler can be used for heating, hot water, hot air and other purposes by burning biomass energy to generate heat energy, in addition, the biomass boiler has the characteristics of environmental protection and energy saving, and the ash generated by combustion is less, which meets the environmental protection requirements.

[0003] At present, in the use process of biomass boiler, in order to prevent overtemperature and stabilize the furnace pressure, the fuel combustion temperature in the boiler is usually regulated, so as to avoid the damage of the boiler, generally, the combustion temperature is regulated by controlling the input amount of biomass fuel and the air intake amount, so that the stable combustion temperature in the furnace is maintained, but when the combustion temperature is reduced, the biomass fuel combustion is insufficient by controlling the air intake amount to inhibit the biomass fuel combustion, which leads to a large amount of flue gas, not only accelerates the coking and ash deposition in the furnace, but also brings pressure to flue gas purification work, which is not conducive to use.

[0004] Therefore, we provide biomass boiler combustion temperature regulation mechanism to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a biomass boiler combustion temperature regulation mechanism, which is matched with the combustion temperature regulation assembly and the air inlet temperature adjusting assembly, solves the problem that the biomass fuel combustion is insufficient in the process of regulating the combustion temperature of the biomass boiler in the prior art, a large amount of flue gas is generated, coking is prone to occur in the furnace, and the flue gas purification burden is increased.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes.

[0007] This utility model relates to a combustion temperature control mechanism for a biomass boiler, comprising a furnace shell, a combustion temperature control component, and an inlet air temperature control component. A furnace chamber is fixedly connected to the bottom of the furnace shell's inner cavity, and a grate is fixedly connected between the two sides of the furnace chamber's inner cavity. The combustion temperature control component includes a control box, the front of which is fixedly connected to the furnace shell. An adjustment mechanism is fixedly connected to the top of the control box's inner cavity. Connecting brackets are fixedly connected to both sides of the adjustment mechanism, penetrating the control box. One side of each connecting bracket extends into the inner cavity of the furnace chamber and is movably connected to a pusher. The furnace chamber... Both sides of the cavity between the front and rear sides are movably connected to heat insulation baffles. The air inlet temperature regulating component includes a jet pipe. The bottom of the jet pipe is connected to the furnace shell. The top of the jet pipe extends to the outside of the furnace shell and is fitted with a sealing cover. The right side of the sealing cover is connected to a high-temperature pipe. The top of the high-temperature pipe is connected to a room-temperature pipe. The right end of the high-temperature pipe is connected to a blower. The air outlet at the bottom of the blower extends to the inner cavity of the furnace shell. The top of the room-temperature pipe is fixedly connected to an electric actuator. The bottom of the output end of the electric actuator extends to the inner cavity of the room-temperature pipe and is fixedly connected to a sealing plate.

[0008] The present invention is further configured such that the adjustment mechanism includes a motor, the top of the motor is fixedly connected to the inner wall of the control box, and screws are fixedly connected to both sides of the output end of the motor. The screws are threaded with telescopic rods, and the opposite sides of the two telescopic rods pass through the control box and are fixedly connected to the connecting frame. The motor can cooperate with the screws to control the position of the telescopic rods and the connecting frame. After the telescopic rods adjust the position of the connecting frame, it is convenient to control the angle of use of the heat insulation baffle.

[0009] The present invention is further configured such that a guide block is fixedly connected to the bottom of the telescopic rod, a guide strip is movably connected to the bottom of the guide block, the bottom of the guide strip is fixedly connected to the inner wall of the control box, and movable openings for use with the telescopic rod are provided on both sides of the control box. The guide block and guide strip are used to limit the telescopic rod, prevent the telescopic rod from rotating and improve its stability during movement, and the movable openings facilitate the left and right movement of the telescopic rod.

[0010] The present invention is further configured such that a sealing tube is sleeved on the surface of the connecting frame, and one of the two sealing tubes, facing opposite directions, extends to the outside of the furnace shell, and the other side of the two sealing tubes extends to the inner cavity of the furnace liner. The sealing tube is used to seal the contact position between the connecting frame and the furnace liner and the furnace shell to prevent heat loss from the inside of the furnace liner.

[0011] The present invention is further configured such that a heat-conducting sleeve is fixedly connected to the surface of the jet tube and to the inner cavity of the sealing cover, and heat dissipation fins are fixedly connected to the surface of the heat-conducting sleeve. The heat-conducting sleeve is used to conduct heat out of the high-temperature flue gas inside the jet tube, and the heat dissipation fins can increase the contact area between the heat-conducting sleeve and the air, thereby rapidly heating the air drawn into the sealing cover.

[0012] The utility model further sets up, the left side of sealed cover has the air inlet square tube, the bottom of furnace shell is fixedly connected with stable base, air inlet square tube can send outside air to sealed cover inside, stable base is used to increase the stability of furnace shell.

[0013] The utility model further sets up, the front side of control box is fixedly connected with furnace shell through mounting bracket, the front side and rear side of temperature insulation baffle all are through bearing swing joint with the inner wall of furnace, and mounting bracket increases the stability of the connection between control box and furnace shell, and bearing facilitates the change of the use angle of temperature insulation baffle.

[0014] The utility model further sets up, the right side of furnace cavity is fixedly connected with temperature sensor, and the front side of furnace shell is provided with fuel delivery port, and temperature sensor is used for monitoring the combustion temperature in the furnace, and fuel delivery port can deliver biomass fuel to the inside of furnace.

[0015] The utility model has the advantages of the following.

[0016] 1, the utility model discloses a combustion temperature regulation assembly for regulating the combustion temperature of biomass fuel, and fuel supply is stopped when the temperature in the furnace is too high, the two connecting frames and the push wheel are moved by adjusting mechanism, the push wheel no longer presses the temperature insulation baffle after moving, the temperature insulation baffle is inclined and shields the fuel, reducing the heat dissipation, reducing the pressure in the furnace, and the fuel continues to burn during temperature control, avoiding a large amount of smoke and a large amount of coking in the furnace.

[0017] 2, the utility model discloses an air inlet temperature adjusting assembly, which can control the combustion temperature in the furnace, and the sealing plate is used to block the normal temperature pipe when the combustion efficiency needs to be improved, at this time, the air introduced into the furnace by the air blower is heated by the flue gas of the chimney, and the high-temperature air entering the furnace will not cause the temperature inside to decrease, and the biomass fuel is fully burned, and the sealing plate is used to block the high-temperature pipe when the combustion temperature needs to be reduced, and the outside normal temperature air enters the furnace, so that the temperature inside the furnace is reduced, and sufficient air is still provided during the cooling process, avoiding the insufficient combustion of biomass fuel. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment.

[0019] Figure 1 It is the perspective view of biomass boiler combustion temperature regulation mechanism;

[0020] Figure 2Rear view of the combustion temperature regulating mechanism for the biomass boiler;

[0021] Figure 3 Sectional view of the furnace shell and furnace core in the combustion temperature regulating mechanism for the biomass boiler;

[0022] Figure 4 Sectional view of the control box in the combustion temperature regulating mechanism for the biomass boiler;

[0023] Figure 5 Sectional view of the sealing cover in the combustion temperature regulating mechanism for the biomass boiler.

[0024] In the drawings: 1, furnace shell; 2, furnace core; 3, grate; 4, combustion temperature regulating assembly; 41, control box; 42, regulating mechanism; 43, connecting frame; 44, push wheel; 45, temperature insulation baffle; 5, air inlet temperature regulating assembly; 51, chimney; 52, sealing cover; 53, high-temperature pipe; 54, normal-temperature pipe; 55, air blower; 56, electric push rod; 57, sealing plate; 421, motor; 422, screw rod; 423, telescopic rod; 6, sealing pipe; 7, heat conduction sleeve; 8, heat dissipation fin; 9, stabilizing base. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0026] Embodiment one

[0027] Please refer to Figures 1-5The utility model discloses a biomass boiler combustion temperature regulation mechanism, including furnace shell 1, combustion temperature regulation assembly 4 and intake temperature regulation assembly 5, the bottom fixed connection of furnace shell 1 inner chamber has furnace 2, and the both sides between furnace 2 inner chamber fixedly connected have fire grate 3, and combustion temperature regulation assembly 4 includes control box 41, and the front side of control box 41 is fixedly connected with furnace shell 1, and the top fixed connection of control box 41 inner chamber has adjusting mechanism 42, and the both sides of adjusting mechanism 42 all are through control box 41 and fixedly connected with the connecting frame 43, and the opposite side of two connecting frames 43 all are through to the inner chamber of furnace 2 and movably connected with push wheel 44, and the both sides between the front side and the back side of furnace 2 inner chamber all movably connected have heat insulation baffle 45, and intake temperature regulation assembly 5 includes chimney 51, and the bottom of chimney 51 is connected with furnace 2, and the top of chimney 51 is through to the outside of furnace shell 1 and is set with sealing cover 52, and the right side of sealing cover 52 is connected with high temperature pipe 53, and the top of high temperature pipe 53 is connected with normal temperature pipe 54, and the right end of high temperature pipe 53 is connected with air blower 55, and the air outlet of air blower 55 bottom is through to the inner chamber of furnace 2, and the top fixed connection of normal temperature pipe 54 has electric push rod 56, and the bottom of electric push rod 56 output is through to the inner chamber of normal temperature pipe 54 and is fixedly connected with sealing plate 57.

[0028] Specific: adjusting mechanism 42 is used for controlling the use position of connecting frame 43 and push wheel 44, push wheel 44 can control the use angle of heat insulation baffle 45, and heat insulation baffle 45 is shielded to the fuel inside furnace 2 to a certain extent after inclining, prevents the heat from continuing to transmit upwards, is used for regulating the combustion temperature, reduces the pressure inside furnace shell 1, and chimney 51 can discharge the high-temperature flue gas generated when fuel burns, and high temperature pipe 53 is used for the delivery of high-temperature air, and normal temperature pipe 54 is used for the delivery of normal-temperature air, and electric push rod 56 and sealing plate 57 can control the delivery of high-temperature air and normal-temperature air, and air blower 55 can deliver external air to the inside of furnace 2, make biomass fuel burn fully.

[0029] Example two

[0030] Please refer to Figures 1-5On the basis of embodiment one, the adjusting mechanism 42 comprises a motor 421, the top of the motor 421 is fixedly connected with the inner wall of the control box 41, the output end of the motor 421 is fixedly connected with a screw rod 422 on both sides, the surface of the screw rod 422 is threadedly connected with an extension rod 423, the opposite side of the two extension rods 423 is fixedly connected with the connecting frame 43 and penetrates through the control box 41, the bottom of the extension rod 423 is fixedly connected with a guide block, the bottom of the guide block is movably connected with a guide strip, the bottom of the guide strip is fixedly connected with the inner wall of the control box 41, the two sides of the control box 41 are provided with movable openings matched with the extension rod 423, the surface of the connecting frame 43 is sleeved with a sealing pipe 6, the opposite side of the two sealing pipes 6 penetrates to the outside of the furnace shell 1, the opposite side of the two sealing pipes 6 penetrates to the inner cavity of the furnace barrel 2, the surface of the chimney 51 and in the inner cavity of the sealing cover 52 is fixedly connected with a heat conducting sleeve 7, the surface of the heat conducting sleeve 7 is fixedly connected with a heat dissipation fin 8, the left side of the sealing cover 52 is communicated with an air inlet square pipe, the bottom of the furnace shell 1 is fixedly connected with a stable base 9, the front side of the control box 41 is fixedly connected with the furnace shell 1 through a mounting frame, the front side and the rear side of the temperature insulation baffle 45 are movably connected with the inner wall of the furnace barrel 2 through bearings, the right side of the inner cavity of the furnace barrel 2 is fixedly connected with a temperature sensor, and the front side of the furnace shell 1 is provided with a fuel delivery port.

[0031] Specifically: the motor 421 can cooperate with the screw rod 422 to control the use position of the extension rod 423 and the connecting frame 43, after the extension rod 423 adjusts the position of the connecting frame 43, it is convenient to control the use angle of the temperature insulation baffle 45, the guide block and the guide strip are used for limiting the extension rod 423, avoiding the self-rotation of the extension rod 423 and improving the stability in the moving process, the movable opening facilitates the left and right movement of the extension rod 423, the sealing pipe 6 is used for sealing the contact position of the connecting frame 43 and the furnace barrel 2 and the furnace shell 1, avoiding the heat loss inside the furnace barrel 2, the heat conducting sleeve 7 is used for guiding the heat of the high-temperature flue gas in the chimney 51 out, the heat dissipation fin 8 can increase the contact area of the heat conducting sleeve 7 and the air, quickly heating the air sucked into the sealing cover 52, the air inlet square pipe can deliver external air to the inside of the sealing cover 52, the stable base 9 is used for increasing the stability of the furnace shell 1, the mounting frame increases the stability of the connection between the control box 41 and the furnace shell 1, the bearing facilitates the change of the use angle of the temperature insulation baffle 45, the temperature sensor is used for monitoring the combustion temperature inside the furnace barrel 2, and the fuel delivery port can deliver biomass fuel to the inside of the furnace barrel 2.

[0032] The working principle of the utility model is: when the temperature inside the furnace 2 needs to be controlled and the biomass fuel is stopped from being delivered and the motor 421 is started, the motor 421 cooperates with the screw rod 422 to control the use position of the telescopic rod 423 and the connecting frame 43, the connecting frame 43 moves to control the push wheel 44 to stop extruding the heat insulation baffle 45, at this time, the heat insulation baffle 45 is inclined to shield the fuel in combustion, used for isolating part of heat, reducing the pressure inside the furnace shell 1, at the same time, the electric push rod 56 is opened, the electric push rod 56 controls the sealing plate 57 to move downwards to seal the high temperature pipe 53, at this time, the air blower 55 inhales the air inside the furnace shell 1 as room temperature air, although the normal temperature air can ensure the full combustion of the fuel after entering the inside of the furnace 2, but heat absorption will occur, the normal temperature air is continuously sent in to reduce the temperature inside the furnace 2, avoiding the over temperature condition, and the biomass fuel can still be fully combusted in the temperature control process, reducing the generation of flue gas, avoiding the coking condition inside the furnace 2.

[0033] The above disclosed utility model preferred embodiments are only used for helping to set forth the utility model, the preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode, the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.

Claims

1. A biomass boiler combustion temperature regulating mechanism, comprising a furnace shell (1), a combustion temperature regulating assembly (4) and an air inlet temperature adjusting assembly (5), characterized in that: The bottom of the inner cavity of the furnace shell (1) is fixedly connected with a furnace body (2), and the two sides of the inner cavity of the furnace body (2) are fixedly connected with a grate (3); The combustion temperature regulating assembly (4) comprises a control box (41), the front side of the control box (41) is fixedly connected with the furnace shell (1), the top of the inner cavity of the control box (41) is fixedly connected with an adjusting mechanism (42), the two sides of the adjusting mechanism (42) penetrate through the control box (41) and are fixedly connected with connecting frames (43), the opposite sides of the two connecting frames (43) penetrate into the inner cavity of the furnace body (2) and are movably connected with push wheels (44), and the two sides between the front side and the rear side of the inner cavity of the furnace body (2) are movably connected with temperature insulation baffles (45). The intake air temperature adjusting assembly (5) comprises a chimney (51), the bottom of the chimney (51) is communicated with the furnace body (2), the top of the chimney (51) penetrates to the outside of the furnace shell (1) and is sleeved with a sealing cover (52), the right side of the sealing cover (52) is communicated with a high-temperature pipe (53), the top of the high-temperature pipe (53) is communicated with a normal-temperature pipe (54), the right end of the high-temperature pipe (53) is communicated with a blower (55), the air outlet at the bottom of the blower (55) penetrates into the inner cavity of the furnace body (2), the top of the normal-temperature pipe (54) is fixedly connected with an electric push rod (56), and the bottom of the output end of the electric push rod (56) penetrates into the inner cavity of the normal-temperature pipe (54) and is fixedly connected with a sealing plate (57).

2. The biomass boiler combustion temperature regulating mechanism according to claim 1, wherein: The adjusting mechanism (42) comprises an electric motor (421), the top of the electric motor (421) is fixedly connected with the inner wall of the control box (41), the two sides of the output end of the electric motor (421) are fixedly connected with screw rods (422), the surfaces of the screw rods (422) are threadedly connected with telescopic rods (423), and the opposite sides of the two telescopic rods (423) penetrate through the control box (41) and are fixedly connected with the connecting frames (43).

3. The biomass boiler combustion temperature regulating mechanism of claim 2, wherein: The bottom of the telescopic rod (423) is fixedly connected with a guide block, the bottom of the guide block is movably connected with a guide strip, the bottom of the guide strip is fixedly connected with the inner wall of the control box (41), and the two sides of the control box (41) are provided with movable openings matched with the telescopic rods (423).

4. The biomass boiler combustion temperature regulating mechanism of claim 1, wherein: The surface of the connecting frame (43) is sleeved with a sealing pipe (6), the opposite sides of the two sealing pipes (6) penetrate to the outside of the furnace shell (1), and the opposite sides of the two sealing pipes (6) penetrate into the inner cavity of the furnace body (2).

5. The biomass boiler combustion temperature regulating mechanism according to claim 1, wherein: The surface of the chimney (51) and the inner cavity of the sealing cover (52) are fixedly connected with a heat conduction sleeve (7), and the surface of the heat conduction sleeve (7) is fixedly connected with a heat dissipation fin (8).

6. The biomass boiler combustion temperature regulating mechanism according to claim 1, wherein: The left side of the sealing cover (52) is communicated with an air inlet square pipe, and the bottom of the furnace shell (1) is fixedly connected with a stable base (9).

7. The biomass boiler combustion temperature regulating mechanism according to claim 1, wherein: The front side of the control box (41) is fixedly connected with the furnace shell (1) through a mounting frame, and the front side and the rear side of the temperature insulation baffle (45) are movably connected with the inner wall of the furnace body (2) through bearings.

8. The biomass boiler combustion temperature regulating mechanism according to claim 1, wherein: The right side of the inner cavity of the furnace body (2) is fixedly connected with a temperature sensor, and the front side of the furnace shell (1) is provided with a fuel conveying port.

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