Adjustable flue flashboard

Abstract

The utility model discloses an adjustable flue flashboard, which is used for switching value control at a flue opening and comprises a smoke exhaust pipe arranged on a top plate of a combustion chamber, a protective cover connected with the bottom of the smoke exhaust pipe, a motor base arranged in the protective cover, a servo motor arranged on the motor base and a lead screw connected with the servo motor. The linkage plate is in transmission connection with the lead screw through a lead screw sliding seat, at least two guide rods are fixed to the linkage plate and slidably arranged in sliding sleeves on folded plates at the outer end of the motor base in a penetrating mode, the other ends of the guide rods are fixedly connected with a gate plate, and the gate plate is slidably arranged on a smoke outlet between a combustion chamber top plate and a smoke exhaust pipe. According to the utility model, the servo motor drives the flashboard to translate on the smoke exhaust port, so that the opening degree between the high-temperature gasification combustion chamber and the smoke exhaust pipe can be controlled, the smoke discharge is adjustable, and the problem of easy condensation is solved. And meanwhile, heat insulation protection can be conducted on the servo motor and the lead screw through the protective cover, and overheating damage caused by high-temperature smoke to the servo motor and the lead screw is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass carbonization energy utilization, in particular to an adjustable flue damper. Background Art

[0002] Agricultural and forestry solid waste refers to the straw, chaff, shrub branches, dead leaves, wood bark, sawdust, wood shavings, and fruit residues discharged from the food processing industry generated during the growth, harvesting and processing of agricultural and forestry crops. At present, the more common treatment methods for agricultural and forestry solid waste can be divided into: landfill, incineration, papermaking, feed, press plate, biomass pellets, biomass power generation, etc. The above treatments have low utilization rates and high pollution, and have gradually been replaced by new technologies. In order to improve the efficiency of carbonization treatment of agricultural and forestry solid waste biomass, thermal cracking and carbonization methods have gradually been used to treat biomass materials. During the pyrolysis and carbonization process, the internal temperature of the equipment is maintained at about 1000 degrees. The biomass materials are in an oxygen-deficient state inside the equipment, and the carbonization and utilization of biomass materials are realized through the steps of preliminary cracking, complete cracking, preliminary carbonization, and complete carbonization. In the existing biomass carbonization and gasification equipment, since the amount of smoke discharged into the flue cannot be adjusted, its shortcomings are: at the rated smoke output, after the high-temperature flue gas realizes heat exchange in the flue, the flue gas temperature drops significantly. When the flue gas reaches the rear heating surface, the flue gas temperature is too low and condensation is easily formed. Utility Model Content

[0003] In order to solve the defects existing in the above technology, the utility model provides an adjustable flue damper.

[0004] The technical solution adopted by the utility model to achieve the above technical effects is:

[0005] An adjustable flue damper, used for switching quantity control at a flue opening, comprises a smoke exhaust pipe arranged on a combustion chamber top plate, a protective cover connected to the bottom of the smoke exhaust pipe, a motor base arranged in the protective cover, a servo motor arranged on the motor base, a lead screw connected to the servo motor, and a linkage plate connected to the lead screw through a lead screw slide, wherein at least two guide rods are fixed on the linkage plate, the guide rods are slidably inserted into a sliding sleeve on a folding plate at an outer end of the motor base, and the other end is fixedly connected to a damper, and the damper is slidably arranged on the smoke exhaust port between the combustion chamber top plate and the smoke exhaust pipe.

[0006] Preferably, in the above-mentioned adjustable flue damper, the protective cover includes a heat-insulating base connected to the bottom of the smoke exhaust pipe and extending horizontally to one side, the heat-insulating base is formed with a motor assembly chamber away from the smoke exhaust pipe and a damper assembly chamber close to the smoke exhaust pipe, the motor base and the linkage plate are assembled in the motor assembly chamber, the linkage plate reciprocates between the servo motor and the folding plate, a fireproof partition is formed between the motor assembly chamber and the damper assembly chamber, a heat-resistant sliding sleeve is embedded in the fireproof partition, the guide rod can be slidably passed through the heat-resistant sliding sleeve, and the other end is located in the damper assembly chamber and is fixedly connected to the damper.

[0007] Preferably, in the above-mentioned adjustable flue damper, a plurality of circular support rods arranged in parallel are provided at the upper opening of the smoke exhaust port, and the lower surface of the damper is in sliding contact with the circular support rods.

[0008] Preferably, in the above-mentioned adjustable flue damper, a temperature sensor is provided at the outlet end of the smoke exhaust pipe.

[0009] Preferably, in the above-mentioned adjustable flue damper, the heat insulating base is arranged in opposite directions to the outlet end of the smoke exhaust pipe.

[0010] Preferably, in the above-mentioned adjustable flue damper, the combustion chamber top plate includes an outer galvanized aluminum plate, a middle insulation layer arranged on the lower side of the galvanized aluminum plate, and an inner insulation layer arranged on the lower side of the middle insulation layer.

[0011] Preferably, in the above-mentioned adjustable flue damper, the middle insulation layer is an asbestos insulation layer, and the inner insulation layer is an alumina insulation layer.

[0012] The beneficial effects of the utility model are as follows: the adjustable flue damper of the utility model can control the opening between the high-temperature gasification combustion chamber and the smoke exhaust pipe by driving the damper through a servo motor to move horizontally on the smoke exhaust port, thereby achieving adjustable smoke emission and solving the problem of easy condensation. At the same time, the servo motor and the lead screw can be insulated and protected by a protective cover to prevent overheating damage caused by high-temperature smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is a planar structural diagram of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the utility model;

[0016] Figure 4 It is a side view of the utility model;

[0017] Figure 5 for Figure 2 A partial enlarged view of "AA" in the figure;

[0018] Figure 6 for Figure 3 A partial enlarged view of "BB" in the figure. DETAILED DESCRIPTION

[0019] In order to further understand the present invention, the present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0020] In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figures 1 to 5As shown in the figure, the embodiment of the utility model proposes an adjustable flue damper, which is used for the switch quantity control at the flue opening of the carbonization chamber, including a smoke exhaust pipe 1 arranged on the combustion chamber top plate 100, a protective cover 11 connected to the bottom of the smoke exhaust pipe 1, a motor base 2 arranged in the protective cover 11, a servo motor 3 arranged on the motor base 2, a lead screw 4 connected to the servo motor 3, and a linkage plate 5 connected to the lead screw 4 through a lead screw slide. Among them, at least two guide rods 6 are fixed on the linkage plate 5, and the guide rod 6 can be slidably inserted into the sliding sleeve 61 on the outer end folding plate 21 of the motor base 2, and the other end is fixedly connected to a damper 7, and the damper 7 can be slidably arranged on the smoke exhaust port 9 between the combustion chamber top plate 100 and the smoke exhaust pipe 1. When it is necessary to control and adjust the opening size of the flue opening of the carbonization chamber, the servo motor 3 receives the command of the controller, rotates to the corresponding angular position according to the command, drives the screw 4 to rotate, and then the screw 4 drives the linkage plate 5 to move the corresponding displacement, and finally the guide rod 6 drives the gate plate 7 to move the corresponding distance on the smoke exhaust port 9, thereby realizing the adjustment of the opening size of the smoke exhaust port 9.

[0023] Further, in a preferred embodiment of the present invention, Figure 2 As shown, the protective cover 11 includes a heat-insulating base connected to the bottom of the smoke exhaust pipe 1 and extending horizontally to one side, and a motor assembly chamber 111 away from the smoke exhaust pipe 1 and a damper assembly chamber 112 close to the smoke exhaust pipe 1 are formed in the heat-insulating base. Figure 6 As shown, the motor base 2 and the linkage plate 5 are assembled in the motor assembly chamber 111, and the linkage plate 5 reciprocates between the servo motor 3 and the folding plate 21. A fireproof partition 113 is formed between the motor assembly chamber 111 and the gate assembly chamber 112, and a heat-resistant sliding sleeve 114 is embedded in the fireproof partition 113. The guide rod 6 can be slidably passed through the heat-resistant sliding sleeve 114, and the other end of the guide rod 6 is located in the gate assembly chamber 112 and fixedly connected to the gate 7. The fireproof partition 113 isolates the motor assembly chamber 111 from the gate assembly chamber 112 to prevent the smoke in the smoke exhaust pipe 1 from entering the motor assembly chamber 111 from the gate assembly chamber 112 to damage the servo motor 3 therein.

[0024] Further, in a preferred embodiment of the present invention, Figure 2 and Figure 3 As shown, the upper side of the smoke outlet 9 is provided with a plurality of circular support rods 8 arranged in parallel, and the lower surface of the gate 7 is in sliding contact with the circular support rods 8. Figure 2 As shown, a temperature sensor 12 is provided at the outlet end of the smoke exhaust pipe 1. Figure 2 As shown, in order to facilitate the subsequent maintenance of the motor equipment in the insulation base, the insulation base is arranged in the opposite direction to the outlet end of the smoke exhaust pipe 1, which can prevent the smoke temperature from burning the maintenance personnel standing on the combustion chamber top plate 100. In the embodiment of the utility model, as shown in FIG. Figure 2 As shown, the combustion chamber top plate 100 includes an outer galvanized aluminum plate 110, a middle insulation layer 120 disposed under the galvanized aluminum plate 110, and an inner insulation layer 130 disposed under the middle insulation layer 120. The middle insulation layer 120 is an asbestos insulation layer, and the inner insulation layer 130 is an aluminum oxide insulation layer.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the specification only describe the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable flue damper, used for switching quantity control at the flue opening, characterized in that: The invention comprises a smoke exhaust pipe (1) arranged on a combustion chamber top plate (100), a protective cover (11) connected to the bottom of the smoke exhaust pipe (1), a motor base (2) arranged in the protective cover (11), a servo motor (3) arranged on the motor base (2), a lead screw (4) connected to the servo motor (3), and a linkage plate (5) connected to the lead screw (4) through a lead screw slide, wherein at least two guide rods (6) are fixed on the linkage plate (5), the guide rods (6) are slidably inserted into a sliding sleeve (61) on a folding plate (21) at the outer end of the motor base (2), and the other end is fixedly connected to a gate plate (7), and the gate plate (7) is slidably arranged on a smoke exhaust port (9) between the combustion chamber top plate (100) and the smoke exhaust pipe (1).

2. The adjustable flue damper according to claim 1, characterized in that: The protective cover (11) comprises a heat-insulating base connected to the bottom of the smoke exhaust pipe (1) and extending horizontally to one side, wherein a motor assembly chamber (111) away from the smoke exhaust pipe (1) and a gate assembly chamber (112) close to the smoke exhaust pipe (1) are formed in the heat-insulating base, wherein the motor base (2) and the linkage plate (5) are assembled in the motor assembly chamber (111), wherein the linkage plate (5) reciprocates between the servo motor (3) and the folding plate (21), wherein a fireproof partition (113) is formed between the motor assembly chamber (111) and the gate assembly chamber (112), wherein a heat-resistant sliding sleeve (114) is embedded in the fireproof partition (113), wherein the guide rod (6) is slidably arranged to pass through the heat-resistant sliding sleeve (114), wherein the other end of the guide rod (6) is located in the gate assembly chamber (112) and is fixedly connected to the gate (7).

3. The adjustable flue damper according to claim 1, characterized in that: The upper side of the smoke exhaust port (9) is provided with a plurality of circular support rods (8) arranged in parallel, and the lower surface of the gate plate (7) is in sliding contact with the circular support rods (8).

4. The adjustable flue damper according to claim 1, characterized in that: A temperature sensor (12) is provided at the outlet end of the smoke exhaust pipe (1).

5. The adjustable flue damper according to claim 2, characterized in that: The heat-insulating base and the outlet end of the smoke exhaust pipe (1) are arranged in opposite directions.

6. The adjustable flue damper according to claim 1, characterized in that: The combustion chamber top plate (100) comprises an outer galvanized aluminum plate (110), a middle heat insulation layer (120) arranged at the lower side of the galvanized aluminum plate (110), and an inner heat insulation layer (130) arranged at the lower side of the middle heat insulation layer (120).

7. The adjustable flue damper according to claim 6, characterized in that: The middle thermal insulation layer (120) is an asbestos thermal insulation layer, and the inner thermal insulation layer (130) is an alumina thermal insulation layer.

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