Boiler waste heat recovery device

Abstract

The utility model belongs to the field of boilers, and particularly relates to a boiler waste heat recovery device which comprises boiler equipment, a feeding port is fixedly connected to the outer side of the boiler equipment, multiple sets of recovery equipment are arranged at one end of the boiler equipment, and an air pipe is arranged at the end, close to the recovery equipment, of the boiler equipment. One end of the air pipe is fixedly connected with the boiler equipment, the other end of the air pipe is fixedly connected with the recovery equipment, multiple sets of air outlet holes are formed in the boiler equipment, the air outlet holes communicate with the air pipe, a moving mechanism is arranged in the boiler equipment and comprises two sets of moving grooves, and the moving grooves communicate with the air outlet holes. The movable grooves are formed in the top end and the bottom end of one side of the interior of the boiler equipment, the two ends of the interior of each movable groove are rotationally connected with screws, the outer sides of the screws are in threaded connection with movable blocks, a heat insulation plate is arranged on the side, close to the movable grooves, of the boiler equipment, and the heat insulation plate is fixedly connected with the two movable blocks.

Description

Technical Field

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

[0002] A waste heat boiler is a device in industrial production. The boiler can generate heat by burning some substances, and then supply it to other processes through a waste heat recovery device.

[0003] A waste heat boiler, as the name implies, refers to a boiler that heats water to a certain temperature by using the waste heat in waste gas, waste materials or waste liquid in various industrial processes and the heat generated after burning combustible substances therein. A fuel boiler, a gas boiler, or a coal-fired boiler with waste heat recovery and utilization of a smoke box and a flue is also called a waste heat boiler. For the existing boiler waste heat recovery device, reference can be specifically made to the Chinese utility model patent with the application number: CN202321056517.3, which discloses in detail a boiler waste heat recovery device, relating to the technical field of heat energy recovery. The device includes a recovery box, an anti-scaling device is arranged inside the recovery box, a storage box is arranged at the inner bottom of the recovery box, the top of the storage box is open, the storage box is slidably arranged vertically inside the recovery box, and a lifting assembly is arranged on the recovery box, and the lifting assembly is used to drive the movement of the recovery box. This application has the effect of facilitating the cleaning of scale inside the waste heat recovery box.

[0004] However, currently, only one set of waste heat recovery device is connected to the waste heat boiler, and the generated heat can only enter this set of recovery devices through pipelines for utilization. In this way, the boiler factory needs to install more boilers and the same number of recovery devices as the number of boilers for waste heat recovery, which will result in a large floor area and high production cost due to the large number of boilers and recovery devices. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, currently, only one set of waste heat recovery device is connected to the waste heat boiler, and the generated heat can only enter this set of recovery devices through pipelines for utilization. In this way, the boiler factory needs to install more boilers and the same number of recovery devices as the number of boilers for waste heat recovery, which will result in a large floor area and high production cost due to the large number of boilers and recovery devices. The utility model provides a boiler waste heat recovery device.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A waste heat recovery device for a boiler according to the present utility model includes a boiler device. A base is fixedly connected to the bottom end of the boiler device. A feed port is fixedly connected to the outside of the boiler device. A plurality of recovery devices are arranged at one end of the boiler device. A gas pipe is arranged at one end of the boiler device close to the recovery device. One end of the gas pipe is fixedly connected to the boiler device, and the other end of the gas pipe is fixedly connected to the recovery device. A plurality of air outlet holes are arranged inside the boiler device, and the air outlet holes communicate with the gas pipe. A moving mechanism is arranged inside the boiler device. The moving mechanism includes moving grooves, and there are two groups of moving grooves. The moving grooves are opened at the top and bottom of one side inside the boiler device. Screws are rotatably connected to both ends inside the moving grooves. A moving block is threadedly connected to the outside of the screw. A heat insulation plate is arranged on one side of the boiler device close to the moving groove, and the heat insulation plate is fixedly connected to the two moving blocks.

[0007] Preferably, the moving block is completely inside the moving groove, and the cross-sectional dimension of the moving block is adapted to the cross-sectional dimension of the moving groove.

[0008] Preferably, a transmission mechanism is arranged on one side of the front part of the boiler device. The transmission mechanism includes a working groove. The working groove is opened on the outside of the boiler device. Two rotating wheels are arranged inside the working groove, and the two rotating wheels penetrate the boiler device and are fixedly connected to one end of the two screws. A transmission belt is sleeved on the outside of the rotating wheels.

[0009] Preferably, a blocking piece is fixedly connected to the front part of the rotating wheel, and the diameter of the blocking piece is larger than the diameter of the rotating wheel.

[0010] Preferably, one end of a connecting rod is fixedly connected to the front part of the base, the other end of the connecting rod is fixedly connected to a motor, and the output end of the motor is fixedly connected to one of the blocking pieces.

[0011] Preferably, heat insulation cotton is fixedly connected to one side of the heat insulation plate, heat insulation cotton is fixedly connected to the other side of the heat insulation plate, and the heat insulation plate is closely attached to the side of the boiler device where the air outlet holes are arranged.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. Through the structural design of the moving mechanism of the present utility model, the function of the moving mechanism is realized, and the problem that only one waste heat recovery device is connected to the existing waste heat boiler, and the generated heat can only enter this one set of recovery devices through the pipeline for utilization is solved. In this way, boiler factories need to install more boilers and the same number of recovery devices as the boilers to recover the waste heat, which will lead to the problems of large floor area and high production cost due to the large number of boilers and recovery devices.

[0014] 2. Through the structural design of the transmission mechanism, the present utility model realizes that the outer sides of the rotating wheels fixedly connected to the two groups of screws are sleeved with the same group of transmission belts. In this way, the rotation of one group of rotating wheels can drive the transmission belt and the other group of rotating wheels to rotate. Thus, only the output end of one group of motors needs to be connected to one group of rotating wheels, and the operation of one group of motors can drive the two groups of rotating wheels to rotate simultaneously, thereby realizing the function of the two groups of screws rotating together, solving the problem that the movement of the heat insulation plate requires the two groups of screws to rotate simultaneously to drive the corresponding moving blocks to move. In this case, two groups of motors are required to control the two groups of screws respectively, and the arrangement of two groups of motors compared with one group of motors controlling two groups of screws will increase the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the front three-dimensional view of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the internal cross-section of the present utility model;

[0018] Figure 3 It is a schematic structural diagram of the position of the heat insulation cotton of the present utility model;

[0019] Figure 4 It is a schematic three-dimensional structural diagram of the transmission mechanism of the present utility model.

[0020] In the figure: 1, boiler equipment; 2, base; 3, feed inlet; 4, recycling equipment; 5, air pipe; 6, air outlet hole; 7, moving groove; 8, screw; 9, moving block; 10, heat insulation plate; 11, working groove; 12, rotating wheel; 13, transmission belt; 14, blocking piece; 15, connecting rod; 16, motor; 17, heat insulation cotton. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0022] Please refer to Figure 1 - Figure 4As shown in the figure, a boiler waste heat recovery device includes a boiler device 1. A base 2 is fixedly connected to the bottom end of the boiler device 1. A feed port 3 is fixedly connected to the outside of the boiler device 1. A plurality of recovery devices 4 are arranged at one end of the boiler device 1. One end of the boiler device 1 near the recovery device 4 is provided with an air pipe 5. One end of the air pipe 5 is fixedly connected to the boiler device 1, and the other end of the air pipe 5 is fixedly connected to the recovery device 4. A plurality of air outlet holes 6 are arranged inside the boiler device 1, and the air outlet holes 6 communicate with the air pipe 5. A moving mechanism is arranged inside the boiler device 1. The moving mechanism includes moving grooves 7, and there are two groups of moving grooves 7. The moving grooves 7 are opened at the top and bottom of one side inside the boiler device 1. Two ends inside the moving grooves 7 are rotatably connected with screw rods 8. A moving block 9 is threadedly connected to the outside of the screw rods 8. A heat insulation plate 10 is arranged on one side of the boiler device 1 near the moving grooves 7, and the heat insulation plate 10 is fixedly connected to the two moving blocks 9;

[0023] During operation, the feed port 3 can input some combustible raw materials into the boiler device 1, so that the boiler device 1 can generate corresponding high-temperature gases during operation. Since there are multiple groups of recovery devices connected to the boiler device 1, and corresponding air outlet holes 6 and air pipes 5 are also provided and installed, before the boiler device 1 operates, we can first determine the recovery device that needs to recover waste heat, so as to determine the position of the heat insulation plate 10. For example, if only two groups of recovery devices are connected to the boiler device 1, then the heat insulation plate 10 blocks the corresponding air outlet holes 6. At this time, the waste heat generated by the boiler device 1 will lead to the other group of recovery devices 4, and vice versa. If it is necessary to put both groups of recovery devices 4 in the heating state, the heat insulation plate 10 can be moved to a position where it does not contact both air outlet holes 6. In this way, the generated waste heat can enter both waste heat recovery devices. By the operation of the motor 16, the heat insulation plate 10 is driven to move, and the position of the heat insulation plate 10 can be adjusted according to the demand to achieve different operations.

[0024] Furthermore, as Figure 2 shown, the moving block 9 is completely inside the moving groove 7, and the cross-sectional dimension of the moving block 9 is adapted to the cross-sectional dimension of the moving groove 7;

[0025] During operation, the rotation of the screw rod 8 will cause the moving block 9 to have the same tendency to rotate. Since the cross-sectional dimension of the moving block 9 is adapted to the cross-sectional dimension of the moving groove 7, this tendency of the moving block 9 to rotate will be blocked by the moving groove 7. Also, due to the threaded connection characteristic between the moving block 9 and the screw rod 8, the moving block 9 can move on the screw rod 8 as the screw rod 8 rotates.

[0026] Furthermore, as Figure 2 and Figure 4As shown in the figure, a transmission mechanism is provided on one side of the front part of the boiler device 1. The transmission mechanism includes a working groove 11. The working groove 11 starts on the outside of the boiler device 1. Two sets of rotating wheels 12 are arranged inside the working groove 11, and the two sets of rotating wheels 12 penetrate through the boiler device 1 and are fixedly connected to one end of two sets of screw rods 8. A transmission belt 13 is sleeved outside the rotating wheel 12;

[0027] During operation, through the structural design of the transmission mechanism, a single set of transmission belt 13 is sleeved outside the rotating wheels 12 fixedly connected to the two sets of screw rods 8. In this way, when one set of rotating wheels 12 rotates, it can drive the transmission belt 13 and the other set of rotating wheels 12 to rotate. Thus, only the output end of one set of motors 16 needs to be connected to one set of rotating wheels 12. When this set of motors 16 operates, it can drive the two sets of rotating wheels 12 to rotate simultaneously, thereby realizing the function of the two sets of screw rods 8 rotating together. This solves the problem that when the heat insulation plate 10 moves, two sets of screw rods 8 need to rotate simultaneously to drive the corresponding moving blocks 9 to move. In this case, two sets of motors 16 are required to control the two sets of screw rods 8 respectively. Compared with using one set of motors 16 to control the two sets of screw rods 8, the setting of two sets of motors 16 will increase the production cost.

[0028] Furthermore, as Figure 3 shown in the figure, a blocking piece 14 is fixedly connected to the front part of the rotating wheel 12. The diameter of the blocking piece 14 is larger than the diameter of the rotating wheel 12;

[0029] During operation, since the diameter of the blocking piece 14 is larger than the diameter of the rotating wheel 12, the transmission belt 13 will not fall off the rotating wheel 12 during operation, thus preventing damage to the transmission mechanism.

[0030] Furthermore, as Figure 1 shown in the figure, the front part of the base 2 is fixedly connected to one end of a connecting rod 15. The other end of the connecting rod 15 is fixedly connected to the motor 16. The output end of the motor 16 is fixedly connected to one set of blocking pieces 14;

[0031] During operation, the connecting rod 15 connected to the base 2 can fix the position of the motor 16, and then the motor 16 can be connected to the corresponding blocking piece 14 and rotating wheel 12.

[0032] Furthermore, as Figure 3 shown in the figure, one side of the heat insulation plate 10 is fixedly connected to a heat insulation cotton 17, and the other side of the heat insulation plate 10 is also fixedly connected to a heat insulation cotton 17. And the heat insulation plate 10 is closely attached to the side of the boiler device 1 where the air outlet hole 6 is provided;

[0033] During operation, when the hot air of the waste heat of the boiler device 1 is selected to enter one set of recovery devices 4, we need to move the heat insulation plate 10 to block the air outlet hole 6 and the air pipe 5 that communicate with the other set of recovery devices. The setting of the heat insulation cotton 17 can prevent high temperature from entering the blocked air outlet hole 6, so that the recovery device that does not need to recover waste heat will not be heated.

[0034] Working principle: The feed inlet 3 can put some combustible raw materials into the boiler equipment 1, so that the boiler equipment 1 can generate corresponding high-temperature gases during operation. Since there are multiple sets of recovery devices connected to the boiler equipment 1, and corresponding air outlet holes 6 and air pipes 5 are also provided and installed, before the boiler equipment 1 operates, we can first determine the recovery device that needs to recover waste heat, and thus determine the position of the heat insulation plate 10. For example, if only two sets of recovery devices are connected to the boiler equipment 1, then the heat insulation plate 10 blocks the corresponding air outlet holes 6. At this time, the waste heat generated by the boiler equipment 1 will lead to another set of recovery equipment 4, and vice versa. If it is necessary to put both sets of recovery equipment 4 in the heating state, the heat insulation plate 10 can be moved to a position where it does not contact both sets of air outlet holes 6. In this way, the generated waste heat can enter both sets of waste heat recovery devices. Through the operation of the motor 16, the rotating wheel 12 connected to it is driven to rotate, thereby driving the transmission belt 13 and another set of rotating wheels 12 to rotate. In this way, the two sets of screw rods 8 will also rotate simultaneously. At this time, the moving block 9 drives the heat insulation plate 10 to move, and the position of the heat insulation plate 10 can be adjusted according to the needs to achieve different operations.

[0035] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A boiler waste heat recovery device, characterized in that: The boiler device (1) comprises a base (2) fixedly connected to the bottom end of the boiler device (1), a feed port (3) fixedly connected to the outside of the boiler device (1), a plurality of recovery devices (4) arranged at one end of the boiler device (1), an air pipe (5) arranged at one end of the boiler device (1) close to the recovery device (4), one end of the air pipe (5) fixedly connected to the boiler device (1), the other end of the air pipe (5) fixedly connected to the recovery device (4), and a plurality of air outlet holes (6) arranged inside the boiler device (1), the air outlet holes (6) The boiler equipment (1) is connected with the air pipe (5), and a moving mechanism is arranged inside the boiler equipment (1), wherein the moving mechanism comprises a moving groove (7), and the moving groove (7) is arranged in two groups, wherein the moving groove (7) is opened at the top and the bottom of one side inside the boiler equipment (1), and the two ends inside the moving groove (7) are rotatably connected with a screw rod (8), and the outer side of the screw rod (8) is threadedly connected with a moving block (9), and a heat insulation plate (10) is arranged on one side of the boiler equipment (1) close to the moving groove (7), and the heat insulation plate (10) is fixedly connected with the two groups of moving blocks (9).

2. A boiler waste heat recovery device according to claim 1, characterized in that: The moving block (9) is completely inside the moving groove (7), and the cross-sectional dimensions of the moving block (9) are adapted to the cross-sectional dimensions of the moving groove (7).

3. A boiler waste heat recovery device according to claim 2, characterized in that: A transmission mechanism is arranged on one side of the front of the boiler device (1), and the transmission mechanism comprises a working groove (11). The working groove (11) starts on the outside of the boiler device (1), and two groups of rotating wheels (12) are arranged inside the working groove (11). The two groups of rotating wheels (12) penetrate the boiler device (1) and are fixedly connected to one end of the two groups of screw rods (8). A transmission belt (13) is sleeved on the outside of the rotating wheels (12).

4. A boiler waste heat recovery device according to claim 3, characterized in that: A blocking piece (14) is fixedly connected to the front of the rotating wheel (12), and the diameter of the blocking piece (14) is greater than the diameter of the rotating wheel (12).

5. A boiler waste heat recovery device according to claim 4, characterized in that: The front part of the base (2) is fixedly connected to one end of a connecting rod (15), the other end of the connecting rod (15) is fixedly connected to a motor (16), and the output end of the motor (16) is fixedly connected to one set of blocking plates (14).

6. A boiler waste heat recovery device according to claim 1, characterized in that: One side of the insulation board (10) is fixedly connected with insulation cotton (17), and the other side of the insulation board (10) is fixedly connected with insulation cotton (17), and the insulation board (10) is closely attached to the side of the boiler equipment (1) where the air outlet (6) is provided.

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