Boiler waste heat recovery device

Abstract

The utility model discloses a boiler waste heat recovery device, which relates to the technical field of boilers and comprises a heat insulation box, a heat exchange tube is fixedly arranged in the heat insulation box, the left surface of the heat insulation box is fixedly connected with a filter box, and the inner surface of the filter box is provided with a first U-shaped limiting groove and a second U-shaped limiting groove. A first U-shaped limiting groove and a second U-shaped limiting groove are formed in the filter box, a filter plate is inserted into the first U-shaped limiting groove, an activated carbon adsorption plate is inserted into the second U-shaped limiting groove, and an opening of the filter box is connected with a box cover in an abutting mode. The lifting plate and the box cover can be driven to move upwards through upward movement of the threaded rod, so that the filter plate and the activated carbon adsorption plate can be pulled out, the filter plate and the activated carbon adsorption plate can be quickly disassembled, and the filter plate and the activated carbon adsorption plate can be conveniently cleaned or replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a boiler waste heat recovery device. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The fuel in the boiler burns to produce flue gas, which carries a large amount of waste heat. In order to reduce energy waste and achieve the goal of energy conservation and emission reduction, a waste heat recovery device is needed to recycle the waste heat of the flue gas.

[0003] For example, in the utility model patent with announcement number CN218884720U, a boiler flue gas heat recovery device is disclosed, including a main recovery mechanism and a secondary recovery mechanism, the main recovery mechanism includes a water storage barrel and a spiral smoke pipe, the spiral smoke pipe is fixedly installed in the middle of the water storage barrel, the secondary recovery mechanism includes a water tank and a bent smoke pipe, the water tank is arranged on the outside of the water storage barrel, the bent smoke pipe is fixedly installed in the middle of the water tank, and the bent smoke pipe is connected to the spiral smoke pipe, so that when hot gas recovery is needed, it can be connected to the boiler smoke outlet through the smoke inlet pipe, so that the smoke can enter the spiral smoke pipe through the smoke inlet pipe, so that the heat in the smoke can be exchanged with the water inside the water storage barrel through the spiral smoke pipe, thereby achieving the purpose of heat recovery, and finally the smoke after heat exchange is discharged through the smoke outlet pipe.

[0004] However, when the utility model is in use, it is not possible to filter the exhaust smoke well, so that the smoke carrying pollution is discharged into the air, causing air pollution. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a boiler waste heat recovery device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a boiler waste heat recovery device, including an insulation box, a heat exchange pipe is fixedly arranged in the insulation box, the upper wall of the insulation box is connected to a liquid inlet pipe, the bottom surface of the insulation box is connected to a liquid outlet pipe, the left surface of the insulation box is fixedly connected to a filter box, the left end of the heat exchange pipe passes through the left wall of the insulation box and is connected to the right wall of the filter box, the right end of the heat exchange pipe passes through the right wall of the insulation box, the inner surface of the filter box is provided with a first U-shaped limiting groove and a second U-shaped limiting groove, the first U-shaped limiting groove is inserted into a filter plate, the second U-shaped limiting groove is inserted into an activated carbon adsorption plate, the left wall of the filter box is connected to an air inlet pipe, the opening of the filter box is abutted against a box cover, and a lifting assembly is provided on the upper surface of the box cover.

[0007] Preferably, the lifting assembly includes a threaded rod, which is rotatably connected to the upper surface of the box cover, a fixing plate is fixedly connected to the right surface of the thermal insulation box, a threaded rod is threadedly connected to the fixing plate, a plurality of guide rods are fixedly connected to the upper end of the box cover, the guide rods are slidably connected to the fixing plate, a lifting plate is commonly fixedly connected to the upper ends of the guide rods, the bottom surface of the lifting plate is rotatably connected to the upper ends of the threaded rods, a motor is fixedly connected to the upper surface of the lifting plate, and the upper end of the threaded rod passes through the lifting plate and is fixedly connected to the driving end of the motor.

[0008] Preferably, a sealing gasket is fixedly connected to the bottom surface of the box cover.

[0009] Preferably, a valve is installed on the liquid outlet pipe.

[0010] Preferably, a plurality of supporting legs are fixedly connected to the bottom surface of the thermal insulation box.

[0011] Preferably, the upper end of the filter plate is flush with the upper end of the activated carbon adsorption plate and the upper end of the filter box opening.

[0012] Beneficial Effects

[0013] The utility model provides a boiler waste heat recovery device, which has the following beneficial effects:

[0014] 1. The exhaust gas can be filtered through the filter plate to prevent the dust in the exhaust gas from condensing on the inner wall of the heat exchange tube and affecting the waste heat recovery;

[0015] 2. The harmful gases in the exhaust gas can be adsorbed by the activated carbon adsorption plate;

[0016] 3. The heat exchange tube heats the water through the waste heat of the exhaust gas, and the insulation box can effectively prevent the loss of heat;

[0017] 4. The upward movement of the threaded rod can drive the lifting plate and the box cover to move upward, so that the filter plate and the activated carbon adsorption plate can be pulled out, and the filter plate and the activated carbon adsorption plate can be quickly disassembled, which is convenient for cleaning or replacing the filter plate and the activated carbon adsorption plate, thereby improving work efficiency;

[0018] 5. Insert the filter plate into the first U-shaped limit groove, insert the activated carbon adsorption plate into the second U-shaped limit groove, and move the box cover downward to press the opening of the adsorption box, so that the filter plate and the activated carbon adsorption plate can be installed quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model.

[0020] In the figure: 1. Insulation box; 2. Liquid inlet pipe; 3. Heat exchange tube; 4. Guide rod; 5. Threaded rod; 6. Box cover; 7. Sealing gasket; 8. Air inlet pipe; 9. Filter plate; 10. First U-shaped limit groove; 11. Filter box; 12. Support leg; 13. Liquid outlet pipe; 14. Valve; 15. Second U-shaped limit groove; 16. Activated carbon adsorption plate; 17. Fixed plate; 18. Lifting plate; 19. Motor. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., are only with reference to the directions shown in the drawings. The directional terms used are used to illustrate and understand the present invention, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] See also Figure 1The utility model provides a technical solution: a boiler waste heat recovery device, comprising an insulation box (1), a heat exchange tube (3) fixedly arranged inside the insulation box (1), a liquid inlet tube (2) connected to the upper wall of the insulation box (1), a liquid outlet tube (13) connected to the bottom surface of the insulation box (1), a filter box (11) fixedly connected to the left surface of the insulation box (1), a left end of the heat exchange tube (3) passing through the left wall of the insulation box (1) and communicating with the right wall of the filter box (11), and a right end of the heat exchange tube (3) passing through the left wall of the insulation box (1) and communicating with the right wall of the filter box (11). The right wall of the heat preservation box (1) is penetrated, and a first U-shaped limiting groove (10) and a second U-shaped limiting groove (15) are provided on the inner surface of the filter box (11), a filter plate (9) is inserted into the first U-shaped limiting groove (10), and an activated carbon adsorption plate (16) is inserted into the second U-shaped limiting groove (15), the left wall of the filter box (11) is connected to an air inlet pipe (8), the opening of the filter box (11) is abutted against a box cover (6), and a lifting component is provided on the upper surface of the box cover (6); the lifting component includes The invention relates to a threaded rod (5), wherein the threaded rod (5) is rotatably connected to the upper surface of the box cover (6); a fixing plate (17) is fixedly connected to the right surface of the heat preservation box (1); the fixing plate (17) is internally threadedly connected to the threaded rod (5); a plurality of guide rods (4) are fixedly connected to the upper end of the box cover (6); the guide rods (4) are slidably connected to the fixing plate (17); the upper ends of the plurality of guide rods (4) are commonly fixedly connected to a lifting plate (18); the bottom surface of the lifting plate (18) is rotatably connected to the upper end of the threaded rod (5); the upper surface of the lifting plate (18) is fixedly connected to the upper end of the threaded rod (5); the upper end of the threaded rod (5) penetrates the lifting plate (18) and is fixedly connected to the driving end of the motor (19); a sealing gasket (7) is fixedly connected to the bottom surface of the box cover (6); a valve (14) is installed on the liquid outlet pipe (13); a plurality of supporting legs (12) are fixedly connected to the bottom surface of the heat preservation box (1); the upper end of the filter plate (9) is flush with the upper end of the activated carbon adsorption plate (16) and the upper end of the filter box (11).

[0024] Through the personnel in this field, all the electrical components in this case are electrically connected to their corresponding power supplies, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working sequence between the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0025] Embodiment: According to the specification attached Figure 1It can be seen that when in use, the various pipelines are connected, water can enter the heat preservation box 1 through the liquid inlet pipe 2, and the exhaust gas can enter the filter box 11 through the air inlet pipe 8. The exhaust gas can be filtered through the filter plate 9 to prevent the dust in the exhaust gas from condensing on the inner wall of the heat exchange tube 3 and affecting the waste heat recovery. The harmful gas in the exhaust gas can be adsorbed by the activated carbon adsorption plate 16. The filtered exhaust gas enters the heat exchange tube 3, and the heat exchange tube 3 heats the water through the waste heat of the exhaust gas. The heat preservation box 1 can effectively prevent the loss of heat, and the filtered exhaust gas is discharged through the right end of the heat exchange tube 3. The starting motor 19 can drive the threaded rod 5 to rotate and move upward. The upward movement of the threaded rod 5 can drive the lifting plate 18 and the box cover 6 to move upward, so The filter plate 9 and the activated carbon adsorption plate 16 can be pulled out, and the disassembly of the filter plate 9 and the activated carbon adsorption plate 16 can be completed quickly, which is convenient for cleaning or replacing the filter plate 9 and the activated carbon adsorption plate 16, thereby improving work efficiency. After the filter plate 9 and the activated carbon adsorption plate 16 are cleaned or replaced, the filter plate 9 is inserted into the first U-shaped limit groove 10, and the activated carbon adsorption plate 16 is inserted into the second U-shaped limit groove 15. The reverse rotation of the motor 19 can drive the threaded rod 5 to rotate in the opposite direction and move downward. The downward movement of the threaded rod 5 can drive the lifting plate 18 and the box cover 6 to move downward. The downward movement of the box cover 6 can press the opening of the adsorption box, thereby quickly completing the installation of the filter plate 9 and the activated carbon adsorption plate 16.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler waste heat recovery device, characterized in that: The invention comprises a heat-insulating box (1), wherein a heat-exchanging tube (3) is fixedly arranged inside the heat-insulating box (1), the upper wall of the heat-insulating box (1) is connected to a liquid inlet tube (2), the bottom surface of the heat-insulating box (1) is connected to a liquid outlet tube (13), the left surface of the heat-insulating box (1) is fixedly connected to a filter box (11), the left end of the heat-exchanging tube (3) passes through the left wall of the heat-insulating box (1) and is connected to the right wall of the filter box (11), the right end of the heat-exchanging tube (3) passes through the right wall of the heat-insulating box (1), the inner surface of the filter box (11) is provided with a first U-shaped limiting groove (10) and a second U-shaped limiting groove (15), the first U-shaped limiting groove (10) is plugged with a filter plate (9), the second U-shaped limiting groove (15) is plugged with an activated carbon adsorption plate (16), the left wall of the filter box (11) is connected to an air inlet tube (8), the filter box (1 The opening of the heat preservation box (1) is abutted against a box cover (6), and a lifting assembly is provided on the upper surface of the box cover (6). The lifting assembly includes a threaded rod (5), and the threaded rod (5) is rotatably connected to the upper surface of the box cover (6). A fixing plate (17) is fixedly connected to the right surface of the heat preservation box (1), and the threaded rod (5) is internally threadedly connected to the fixing plate (17). A plurality of guide rods (4) are fixedly connected to the upper end of the box cover (6), and the guide rods (4) are slidably connected to the fixing plate (17). The upper ends of the plurality of guide rods (4) are commonly fixedly connected to a lifting plate (18), and the bottom surface of the lifting plate (18) is rotatably connected to the upper end of the threaded rod (5). A motor (19) is fixedly connected to the upper surface of the lifting plate (18), and the upper end of the threaded rod (5) passes through the lifting plate (18) and is fixedly connected to the driving end of the motor (19).

2. A boiler waste heat recovery device according to claim 1, characterized in that: A sealing gasket (7) is fixedly connected to the bottom surface of the box cover (6).

3. A boiler waste heat recovery device according to claim 1, characterized in that: A valve (14) is installed on the liquid outlet pipe (13).

4. A boiler waste heat recovery device according to claim 1, characterized in that: A plurality of supporting legs (12) are fixedly connected to the bottom surface of the thermal insulation box (1).

5. The boiler waste heat recovery device according to claim 1, characterized in that: The upper end of the filter plate (9) is flush with the upper end of the activated carbon adsorption plate (16) and the upper end of the opening of the filter box (11).

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