Waste heat recovery device

Abstract

The utility model provides a waste heat recovery device, which relates to the technical field of recovery devices, and comprises a bottom plate, four supporting legs are fixedly arranged at the top of the bottom plate, a recovery device body is fixedly arranged among the tops of the four supporting legs, and a supporting frame is fixedly arranged at the top of the bottom plate. The outer surface wall of the recycling device body is fixedly connected with one side of the outer wall of a supporting frame, and a sliding groove is formed in the top of the supporting frame. According to the device, under the interaction of all the components of the device, the two groups of spray heads can generate high-pressure and fine airflow beams and directly blow the airflow beams to the surface of the heat exchanger, and meanwhile, the two groups of spray heads can move on the top of the heat exchanger by utilizing the driving force of the first motor, so that the surface of the heat exchanger is comprehensively and uniformly blown; dust and pollutants on the surface of the heat exchanger are effectively removed in the process, and the heat exchange efficiency and the operation stability of the heat exchanger are remarkably improved.

Description

Technical Field

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

[0002] A boiler is a device that uses fuel, electricity or other energy to heat liquid to specific parameters and provides heat energy through an output medium. It is widely used in industries, heating, power generation and other fields. The reason why boilers need waste heat recovery devices is mainly because boilers will produce a large amount of high-temperature flue gas during operation. These flue gases contain rich waste heat resources. If they are directly discharged into the atmosphere, it will not only cause a huge waste of energy, but also aggravate environmental pollution. Therefore, by installing a waste heat recovery device, the waste heat in these flue gases can be efficiently recovered and utilized, and converted into hot water, steam or other forms of heat energy for use in other production links, thereby improving energy utilization efficiency, reducing production costs, and reducing the impact on the environment.

[0003] Since the large amount of high-temperature flue gas discharged by the boiler usually contains multiple components, including soot particles, sulfur dioxide, nitrogen oxides, and incompletely burned substances. During the heat exchange process of the waste heat recovery device, the dust and certain pollutants in these components will be deposited on the surface of the heat exchanger, forming a layer of ash or dirt. Over a long period of time, these deposits will cause the heat exchange efficiency of the heat exchanger to drop significantly. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that when the above equipment is in use, dust and other pollutants in the flue gas will be deposited on the surface of the heat exchanger during the use of the waste heat recovery device, resulting in reduced heat exchange efficiency, and thus a waste heat recovery device is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a waste heat recovery device comprises a base plate, the top of the base plate is fixedly installed with four supporting legs, a recovery device body is fixedly installed between the tops of the four supporting legs, a support frame is fixedly installed on the top of the base plate, and the outer wall of the recovery device body is fixedly connected to one side of the outer wall of the support frame, a slide groove is opened on the top of the support frame, a slider is slidably embedded in the inner wall of the slide groove, a threaded rod is threadedly connected to the inner wall of the slider, a servo motor is fixedly connected to one side of the outer wall of the threaded rod, two first bearings are fixedly sleeved on the outer wall of the threaded rod, a moving pipe is fixedly inserted inside the slider, the output end of the moving pipe is fixedly connected to two delivery pipes, the outer walls of the two delivery pipes are fixedly connected to a group of nozzles, the input end of the moving pipe is fixedly connected to a spiral air pipe, the input end of the spiral air pipe is fixedly connected to a connecting air pipe, and the input end of the connecting air pipe is fixedly connected to an air compressor.

[0006] Preferably, two mounting holes are provided on the outer wall of the recovery device body.

[0007] Preferably, a second bearing is fixedly inserted into the inner surface walls of the two mounting holes.

[0008] Preferably, a rotating shaft is fixedly inserted between the two second bearings.

[0009] Preferably, the outer wall fixing sleeve of the rotating shaft is provided with spiral blades.

[0010] Preferably, a driving motor is fixedly connected to one side of the outer wall of the rotating shaft.

[0011] Preferably, the bottom of the recovery device body is fixedly connected to a sewage pipe.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, through the interaction of the various components of the device, the two groups of nozzles can generate high-pressure, dense airflow beams and blow them directly to the surface of the heat exchanger. At the same time, using the driving force of the first motor, the two groups of nozzles can move on the top of the heat exchanger, thereby achieving comprehensive and uniform sweeping of the surface of the heat exchanger. This process effectively removes dust and pollutants on the surface of the heat exchanger, and significantly improves its heat exchange efficiency and operating stability.

[0014] 2. In the utility model, through the interaction of the components of the device and the drive of the drive motor, the spiral blades can effectively push the dust and pollutants inside the recovery device to be discharged from the sewage pipe, thereby reducing the frequency and labor intensity of manual cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A main structural stereogram of a waste heat recovery device is provided for the utility model;

[0016] Figure 2 A partial structural stereogram of a waste heat recovery device proposed by the utility model;

[0017] Figure 3 A three-dimensional exploded diagram of some structures in a waste heat recovery device is proposed for the utility model;

[0018] Figure 4 The utility model provides a partial structural sectional stereoscopic exploded diagram of a waste heat recovery device.

[0019] Legend:

[0020] 1. Bottom plate; 2. Support legs; 3. Recovery device body; 4. Support frame; 5. Slide groove; 6. Slider; 7. Threaded rod; 8. Servo motor; 9. First bearing; 10. Moving pipe; 11. Delivery pipe; 12. Nozzle; 13. Spiral air pipe; 14. Connecting air pipe; 15. Air compressor; 16. Mounting hole; 17. Second bearing; 18. Rotating shaft; 19. Spiral blade; 20. Driving motor; 21. Drain pipe. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a waste heat recovery device, including a base plate 1, four supporting legs 2 are fixedly installed on the top of the base plate 1, a recovery device body 3 is fixedly installed between the tops of the four supporting legs 2, a support frame 4 is fixedly installed on the top of the base plate 1, and the outer wall of the recovery device body 3 is fixedly connected to one side of the outer wall of the support frame 4, a slide groove 5 is opened on the top of the support frame 4, a slider 6 is slidably embedded in the inner wall of the slide groove 5, a threaded rod 7 is threadedly connected to the inner wall of the slider 6, a servo motor 8 is fixedly connected to one side of the outer wall of the threaded rod 7, two first bearings 9 are fixedly sleeved on the outer wall of the threaded rod 7, a moving pipe 10 is fixedly inserted inside the slider 6, the output end of the moving pipe 10 is fixedly connected to two delivery pipes 11, the outer walls of the two delivery pipes 11 are fixedly connected to a group of nozzles 12, the input end of the moving pipe 10 is fixedly connected to a spiral air pipe 13, the input end of the spiral air pipe 13 is fixedly connected to a connecting air pipe 14, and the input end of the connecting air pipe 14 is fixedly connected to an air compressor 15.

[0024] The effect achieved by the entire embodiment 1 is that when it is necessary to clean the dust and pollutants on the surface of the heat exchanger, the air compressor 15 is first started. After the air compressor 15 is started, the surrounding air is sucked in and compressed to generate high-pressure air. When the air pressure of the compressed air reaches the preset threshold, the staff opens the air outlet valve of the air compressor 15. At this time, the high-pressure air is transported to the two delivery pipes 11 through the spiral air pipe 13 and the moving pipe 10. Under the action of the two groups of nozzles 12, the compressed air is quickly released and converted into high-speed airflow, which directly impacts the surface of the heat exchanger, thereby achieving effective blowing and cleaning of the dust and pollutants on the heat exchanger. At the same time, by starting the servo motor 8, its output end drives the threaded rod 7 to rotate. According to the thread transmission mechanism, this rotational motion is converted into the left and right movement of the slider 6 inside the slide groove 5. The movement of the slider 6 then drives the two delivery pipes 11 and the two groups of nozzles 12 to move left and right synchronously, thereby achieving back and forth cleaning of the heat exchanger surface. This back and forth cleaning method can ensure that every corner of the heat exchanger surface is fully cleaned, thereby significantly improving the cleaning effect and extending the service life of the heat exchanger.

[0025] Embodiment 2, as Figure 2-Figure 4 As shown, the outer wall of the recovery device body 3 is provided with two mounting holes 16, the inner walls of the two mounting holes 16 are fixedly inserted with second bearings 17, a rotating shaft 18 is fixedly inserted between the insides of the two second bearings 17, the outer wall of the rotating shaft 18 is fixedly sleeved with spiral blades 19, one side of the outer wall of the rotating shaft 18 is fixedly connected to a driving motor 20, and the bottom of the recovery device body 3 is fixedly connected to a sewage pipe 21.

[0026] The effect achieved by the entire embodiment 2 is that after the heat exchanger is cleaned, the dust and pollutants will naturally fall to the bottom through the inclined design of the inner wall of the recovery device body 3. When the dust and pollutants at the bottom of the recovery device body 3 need to be further cleaned, the drive motor 20 is first started. The output end of the drive motor 20 will drive the rotating shaft 18 and the spiral blades 19 to start rotating. During the rotation of the spiral blades 19, its special spiral structure will continuously push the dust and pollutants at the bottom toward the drain pipe 21. As the rotation continues, the pushed dust and pollutants will be smoothly discharged from the drain pipe 21, thereby achieving effective cleaning of the dust and pollutants inside the recovery device body 3. This process greatly reduces the frequency and difficulty of manual cleaning, and improves the efficiency and safety of the cleaning work.

[0027] Working principle: During the operation of the recovery device body 3, a large amount of dust and pollutants tend to accumulate on the surface of the heat exchanger. This is mainly because during the heat exchange process, suspended particles, dust and possible chemical pollutants in the air are deposited on the surface due to the action of airflow. When these deposits accumulate to a certain extent, they will seriously affect the heat exchange efficiency and operating stability of the heat exchanger. Therefore, they need to be cleaned regularly. When performing the cleaning operation, first start the air compressor 15. The air compressor 15 mechanically sucks in and compresses the air to a high-pressure state, and then stores the compressed air in the air tank until the preset air pressure threshold is reached. At this time, the staff opens the air outlet valve of the air compressor 15, and the high-pressure air is immediately transported to the two parallel delivery pipes 11 through the spiral air pipe 13 and the mobile pipe 10. Since the outer walls of the two delivery pipes 11 are fixedly connected with a group of nozzles 12, the two groups of nozzles 12 can convert the high-pressure air into a high-speed, dense airflow beam, which is directly sprayed onto the surface of the heat exchanger. Under the synergistic effect, the high-pressure airflow effectively strips and blows away the dust and pollutants on the surface of the heat exchanger, thereby achieving deep cleaning of its surface. At the same time, the servo motor 8 is started, and the output end of the servo motor 8 drives the threaded rod 7 to rotate. Since the outer wall of the threaded rod 7 is threadedly connected to the inner wall of the slider 6, this rotational motion is converted into a linear reciprocating motion of the slider 6 in the slide groove 5. The movement of the slider 6 then drives the two conveying pipes 11 and the two groups of nozzles 12 to move left and right, thereby achieving a comprehensive and uniform cleaning of the heat exchanger surface, ensuring no dead angle cleaning. After the cleaning is completed, the dust and pollutants naturally slide to the bottom along the inclined surface of the inner wall of the recovery device body 3 under the action of gravity. When these wastes need to be processed, the staff starts the drive motor 20, and its output end drives the rotating shaft 18 and the spiral blade 19 to rotate. The spiral blade 19 uses its special spiral structure to continuously push the dust and pollutants at the bottom forward during the rotation process until they are successfully introduced into and discharged from the sewage pipe 21, thereby achieving effective processing of the waste inside the recovery device.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A waste heat recovery device, comprising a bottom plate (1), characterized in that: Four support legs (2) are fixedly mounted on the top of the base plate (1), a recovery device body (3) is fixedly mounted between the tops of the four support legs (2), a support frame (4) is fixedly mounted on the top of the base plate (1), and the outer wall of the recovery device body (3) is fixedly connected to one side of the outer wall of the support frame (4), a slide groove (5) is provided on the top of the support frame (4), a slider (6) is slidably embedded in the inner wall of the slide groove (5), a threaded rod (7) is threadedly connected to the inner wall of the slider (6), and a servo motor (7) is fixedly connected to one side of the outer wall of the threaded rod (7). 8), two first bearings (9) are fixedly sleeved on the outer wall of the threaded rod (7), a moving tube (10) is fixedly inserted inside the slider (6), the output end of the moving tube (10) is fixedly connected to two delivery tubes (11), the outer walls of the two delivery tubes (11) are fixedly connected to a group of nozzles (12), the input end of the moving tube (10) is fixedly connected to a spiral air tube (13), the input end of the spiral air tube (13) is fixedly connected to a connecting air tube (14), and the input end of the connecting air tube (14) is fixedly connected to an air compressor (15).

2. A waste heat recovery device according to claim 1, characterized in that: Two mounting holes (16) are provided on the outer wall of the recovery device body (3).

3. A waste heat recovery device according to claim 2, characterized in that: Second bearings (17) are fixedly inserted into the inner surface walls of the two mounting holes (16).

4. A waste heat recovery device according to claim 3, characterized in that: A rotating shaft (18) is fixedly inserted between the interiors of the two second bearings (17).

5. A waste heat recovery device according to claim 4, characterized in that: The outer wall of the rotating shaft (18) is fixedly sleeved with a spiral blade (19).

6. A waste heat recovery device according to claim 5, characterized in that: A driving motor (20) is fixedly connected to one side of the outer wall of the rotating shaft (18).

7. A waste heat recovery device according to claim 6, characterized in that: The bottom of the recovery device body (3) is fixedly connected to a sewage discharge pipe (21).

Images