Waste heat recovery equipment

Abstract

Relates to the field of steam energy conservation, and discloses waste heat recovery equipment which comprises a transmission pipe used for collecting heat energy, a sealing shell arranged in the middle of the transmission pipe, a filtering device arranged at the position, close to the sealing shell, of the transmission pipe, and a collecting box detachably arranged at the lower end of the sealing shell and used for collecting waste heat in the sealing shell. The dust collector collects dust; the cleaning unit is arranged in the sealing shell and is connected with the filtering device; according to the utility model, dust and impurities in a heat energy transmission medium can be effectively filtered out, and the impurities are prevented from being accumulated in a transmission pipe, so that efficient transmission and recovery of heat energy are ensured, automatic cleaning of the filtering device can be realized, and the working efficiency is improved. The frequency and difficulty of manual cleaning are reduced, continuous and efficient work of the filtering device is guaranteed, and the heat energy recovery efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam energy saving, and specifically relates to a waste heat recovery device. Background Art

[0002] A steam boiler refers to a boiler device that produces steam. The heat energy such as steam generated during the operation of the steam boiler can be recycled. Therefore, in order to save energy and protect the environment, many existing steam boilers are equipped with waste heat recovery and reuse devices. However, the existing transportation of waste heat requires a medium, but when transporting the medium, heat energy, impurities, particulate matters, etc. will enter the interior of the waste heat recovery and utilization device. In order to avoid the influence of impurities and particulate matters on the waste heat recovery and utilization device, it is necessary to filter the impurities and particulate matters.

[0003] The existing equipment has the following disadvantages: the overall structure is simple, without a filtering function, unable to filter impurities in the heat energy medium, and the filtering material is prone to blockage, affecting the heat energy transmission efficiency, and even may cause equipment failure, requiring frequent cleaning or replacement, which affects the working efficiency of the equipment.

[0004] Therefore, the present application now proposes a waste heat recovery device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a waste heat recovery device to solve the problems that the filtering material is prone to blockage, affecting the heat energy transmission efficiency, and even may cause equipment failure, requiring frequent cleaning or replacement.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a waste heat recovery device, including a transmission pipe for collecting heat energy, a sealing shell arranged in the middle of the transmission pipe, and a filtering device arranged at a position of the transmission pipe close to the sealing shell, further including:

[0007] A collection box, detachably arranged at the lower end of the sealing shell, for collecting dust;

[0008] A cleaning unit, arranged inside the sealing shell and connected to the filtering device, for cleaning the filtering device;

[0009] An adjusting unit, arranged at the upper end of the sealing shell and connected to the cleaning unit, for adjusting the position of the cleaning unit in the sealing shell.

[0010] Wherein, the cleaning unit includes sliders slidably arranged on both sides of the sealing shell, a rotating shaft arranged between the two sliders, and a cleaning brush fixed on the rotating shaft. The sliders are connected to the adjusting unit, and the sealing shell is provided with sliding grooves for the sliders to move at positions corresponding to the sliders.

[0011] Wherein, a connecting member is arranged between the rotating shaft and the sealing shell. The connecting members are symmetrically arranged with respect to the cleaning brush. The connecting member includes a first gear fixed on the rotating shaft and a first rack fixed on the inner wall of the sealing shell. The first gear is meshed and connected with the first rack.

[0012] Wherein, a negative pressure component is arranged inside the collection box. The slider is connected to the negative pressure component through a second rack. The negative pressure component includes a connecting shaft arranged on the inner wall of the collection box, a second gear fixed on the connecting shaft, and blades fixed on the connecting shaft. The second rack is meshed and connected with the second gear;

[0013] An air outlet is formed on one side of the collection box close to the connecting shaft. A sealing cover is fixed outside the air outlet. A perforation is formed at the corresponding position of the lower end of the collection box for the second rack.

[0014] The second rack is arranged inside the sliding groove. A moving groove is formed at the corresponding position of the sealing shell for the second rack.

[0015] Wherein, the top cover of the sealing shell is detachably fixed. The adjusting unit includes a hydraulic rod fixed on the upper end of the top cover, a top plate arranged at the power output end of the hydraulic rod, and a push rod fixed at the lower end of the top plate and passing through the top cover. The lower end of the push rod is fixed on the slider.

[0016] Wherein, the filtering device includes a first filter screen fixed inside the transmission pipe and a second filter screen fixed inside the transmission pipe. The cleaning brush is located between the first filter screen and the second filter screen. A dust outlet is formed at the lower end of the sealing shell.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The present utility model can effectively filter out dust and impurities in the heat energy transmission medium, avoid the accumulation of these impurities inside the transmission pipe, thereby ensuring the efficient transmission and recovery of heat energy. The cleaning unit and the adjusting unit arranged inside the device can automatically clean the filtering device, which not only reduces the frequency and difficulty of manual cleaning, but also ensures the continuous and efficient operation of the filtering device, further improving the heat energy recovery efficiency.

[0019] 2. The slider of the present utility model is connected to the negative pressure component through the second rack, realizing the automation of mechanical transmission. When the filter device needs to be cleaned, first remove the sealing cover on the collection box. When the slider moves in the chute, it will drive the second rack to move, and then drive the blades on the connecting shaft to rotate through the second gear. The rotation of the blades will generate negative pressure, which can be effectively utilized through the air outlet of the collection box to form a negative pressure element inside the collection box. During the cleaning process of the filter device by the cleaning brush, the dust and debris cleaned from the inside of the sealing shell can be absorbed downward, facilitating the dust and debris to fall into the collection box for collection. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the main structure in an embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the side view structure in an embodiment of the present utility model;

[0022] Figure 3 It is a schematic diagram of the internal structure of the transmission pipe in an embodiment of the present utility model;

[0023] Figure 4 It is a schematic diagram of the installation structure of the cleaning unit in an embodiment of the present utility model;

[0024] Figure 5 It is a schematic diagram of the connection structure between the cleaning unit and the adjustment unit in an embodiment of the present utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the connecting member in an embodiment of the present utility model;

[0026] Figure 7 It is a schematic diagram of the connection structure between the slider and the negative pressure component in an embodiment of the present utility model;

[0027] Figure 8 It is a schematic diagram of the structure of the negative pressure component in an embodiment of the present utility model.

[0028] In the figure: 1. Transmission pipe; 11. First filter screen; 12. Second filter screen; 2. Sealing shell; 21. Top cover; 201. Dust outlet; 202. Chute; 2021. Moving groove; 3. Collection box; 301. Air outlet; 302. Perforation; 31. Sealing cover; 4. Adjustment unit; 41. Hydraulic rod; 42. Top plate; 43. Pushing rod; 5. Cleaning unit; 51. Slider; 52. Rotating shaft; 53. Cleaning brush; 54. Connecting member; 541. First gear; 542. First rack; 55. Second rack; 56. Negative pressure component; 561. Connecting shaft; 562. Second gear; 563. Blades. Detailed Description of the Invention

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the 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 shall fall within the protection scope of the present utility model.

[0030] Please refer to Figure 1-8 , the present utility model provides a technical solution: a waste heat recovery device, including a transmission pipe 1 for collecting heat energy, a sealing shell 2 provided in the middle of the transmission pipe 1, and a filtering device provided at a position of the transmission pipe 1 close to the sealing shell 2, and further including:

[0031] A collection box 3, detachably provided at the lower end of the sealing shell 2 for collecting dust;

[0032] A cleaning unit 5, provided inside the sealing shell 2 and connected to the filtering device for cleaning the filtering device;

[0033] An adjusting unit 4, provided at the upper end of the sealing shell 2 and connected to the cleaning unit 5 for adjusting the position of the cleaning unit 5 in the sealing shell 2.

[0034] It should be noted that during operation, the steam generated during the processing of the boiler is discharged into the interior of the transmission pipe 1 for heat energy recovery and reuse. When the steam passes through the interior of the sealing shell 2, the filtering device inside the transmission pipe 1 filters the impurities and particulate matters in the steam. When the device has been used for a period of time, the filtering device needs to be cleaned. At this time, the adjusting unit 4 is opened to drive the cleaning unit 5 to move up and down inside the sealing shell 2, so that the cleaning unit 5 cleans the filtering device, and the dust removed falls into the interior of the collection box 3 for collection. This device can effectively filter the dust and impurities in the heat energy transmission medium, prevent these impurities from accumulating inside the transmission pipe 1, thereby ensuring the efficient transmission and recovery of heat energy. The cleaning unit 5 and the adjusting unit 4 provided inside the device can realize the automatic cleaning of the filtering device, which not only reduces the frequency and difficulty of manual cleaning, but also ensures the continuous and efficient operation of the filtering device, further improving the heat energy recovery efficiency.

[0035] In an embodiment, the cleaning unit 5 includes sliders 51 slidably provided on both sides of the sealing shell 2, a rotating shaft 52 provided between the two sliders 51, and a cleaning brush 53 fixed on the rotating shaft 52. The sliders 51 are connected to the adjusting unit 4, and chutes 202 for the sliders 51 to move are provided at the corresponding positions of the sealing shell 2 for the sliders 51.

[0036] With such a design, refer to Figure 3 , as well as Figure 4, the adjustment unit 4 drives the slider 51 to move up and down inside the chute 202, which can make the rotating shaft 52 drive the cleaning brush 53 to move on one side of the filtering device, thereby cleaning the dust and impurities adhering to the filtering device.

[0037] In one embodiment, a connecting member 54 is provided between the rotating shaft 52 and the sealing shell 2. The connecting member 54 is symmetrically arranged with respect to the cleaning brush 53. The connecting member 54 includes a first gear 541 fixed on the rotating shaft 52 and a first rack 542 fixed on the inner wall of the sealing shell 2. The first gear 541 is meshed with the first rack 542.

[0038] With such a design, referring to Figures 5-7 , the first gear 541 is fixed on the rotating shaft 52, and the first rack 542 is fixed on the inner wall of the sealing shell 2. The meshing connection between the two forms a stable transmission mechanism. When the adjustment unit 4 moves the slider 51 up and down, the first gear 541 will be meshed with the first rack 542, and then the first gear 541 drives the rotating shaft 52 to rotate. When the rotating shaft 52 rotates, it can drive the cleaning brush 53 to brush the filtering device, improving the cleaning effect of the cleaning brush 53.

[0039] In one embodiment, a negative pressure element 56 is arranged inside the collection box 3. The slider 51 is connected to the negative pressure element 56 through a second rack 55. The negative pressure element 56 includes a connecting shaft 561 arranged on the inner wall of the collection box 3, a second gear 562 fixed on the connecting shaft 561, and a blade 563 fixed on the connecting shaft 561. The second rack 55 is meshed with the second gear 562;

[0040] An air outlet 301 is opened on one side of the collection box 3 close to the connecting shaft 561. A sealing cover 31 is fixed outside the air outlet 301. A through hole 302 is opened at the lower end of the collection box 3 corresponding to the position of the second rack 55;

[0041] The second rack 55 is arranged inside the chute 202, and a moving groove 2021 is opened at the position of the sealing shell 2 corresponding to the second rack 55.

[0042] With such a design, referring to Figures 5-8, the slider 51 is connected to the negative pressure element 56 through the second rack 55, realizing the automation of mechanical transmission. When the filter device needs to be cleaned, first remove the sealing cover 31 on the collection box 3. When the slider 51 moves in the chute 202, it will drive the second rack 55 to move, and then drive the blades 563 on the connecting shaft 561 to rotate through the second gear 562. The rotation of the blades 563 will generate negative pressure, and this negative pressure can be effectively utilized through the air outlet 301 of the collection box 3 to form a negative pressure element inside the collection box 3. During the cleaning process of the filter device by the cleaning brush 53, the dust and debris cleaned from the inside of the sealing shell 2 can be absorbed downward, facilitating the dust and debris to fall into the collection box 3 for collection.

[0043] In one embodiment, a top cover 21 is detachably fixed to the upper end of the sealing shell 2. The adjusting unit 4 includes a hydraulic rod 41 fixed to the upper end of the top cover 21, a top plate 42 provided at the power output end of the hydraulic rod 41, and a push rod 43 fixed to the lower end of the top plate 42 and passing through the top cover 21. The lower end of the push rod 43 is fixed to the slider 51.

[0044] With this design, referring to Figures 2-4 , the hydraulic rod 41 drives the top plate 42 to move up and down, which can make the push rod 43 push the slider 51 to move up and down inside the chute 202. The hydraulic rod 41 can precisely control the moving distance and speed of the push rod 43, thereby realizing the precise adjustment of the slider 51 and the cleaning brush 53.

[0045] In one embodiment, the filter device includes a first filter screen 11 fixed inside the transmission pipe 1 and a second filter screen 12 fixed inside the transmission pipe 1. The cleaning brush 53 is located between the first filter screen 11 and the second filter screen 12, and a dust outlet 201 is opened at the lower end of the sealing shell 2.

[0046] With this design, referring to Figure 3 , the design of the double filter screen provides more efficient filtering ability. The first filter screen 11 may be mainly used to intercept larger impurity particles, while the second filter screen 12 further filters out finer impurities, thus ensuring higher purity of the fluid. The cleaning brush 53 is located between the first filter screen 11 and the second filter screen 12, and can remove the impurities attached to the filter screen during rotation, reducing the risk of blockage of the filter screen, extending the service life of the filter screen, and through regular maintenance and cleaning, improving the reliability and stability of the system. The dust outlet 201 at the lower end of the sealing shell 2 can facilitate the dust and impurities removed to fall into the collection box 3.

[0047] In addition, if the description involves "first", "second", etc. in the embodiments, such descriptions of "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance to the specification or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include at least one such feature.

Claims

1. A waste heat recovery device, comprising a transmission pipe (1) for collecting heat energy, a sealed shell (2) arranged in the middle of the transmission pipe (1), and a filtering device arranged at a position of the transmission pipe (1) close to the sealed shell (2), characterized in that: Also includes: A collection box (3) is detachably arranged at the lower end of the sealing shell (2) and is used to collect dust; a cleaning unit (5), arranged inside the sealing shell (2) and connected to the filter device, and used for cleaning the filter device; An adjustment unit (4) is arranged at the upper end of the sealing shell (2) and is connected to the cleaning unit (5), and is used to adjust the position of the cleaning unit (5) in the sealing shell (2).

2. A waste heat recovery device according to claim 1, characterized in that: The cleaning unit (5) comprises a slider (51) slidably arranged on both sides of the sealing shell (2), a rotating shaft (52) arranged between the two sliders (51), and a cleaning brush (53) fixed on the rotating shaft (52); the slider (51) is connected to the adjustment unit (4); and a slide groove (202) for the slider (51) to move is provided at a position of the sealing shell (2) corresponding to the slider (51).

3. A waste heat recovery device according to claim 2, characterized in that: A connecting member (54) is provided between the rotating shaft (52) and the sealing shell (2), and the connecting member (54) is symmetrically arranged with respect to the cleaning brush (53). The connecting member (54) comprises a first gear (541) fixed on the rotating shaft (52) and a first rack (542) fixed on the inner wall of the sealing shell (2), and the first gear (541) is meshingly connected with the first rack (542).

4. A waste heat recovery device according to claim 3, characterized in that: A negative pressure element (56) is arranged inside the collection box (3); the slider (51) is connected to the negative pressure element (56) via a second rack (55); the negative pressure element (56) comprises a connecting shaft (561) arranged on the inner wall of the collection box (3), a second gear (562) fixed on the connecting shaft (561), and a blade (563) fixed on the connecting shaft (561); the second rack (55) is meshingly connected with the second gear (562); The collecting box (3) is provided with an air outlet (301) on one side close to the connecting shaft (561), a sealing cover (31) is fixed on the outer side of the air outlet (301), and a through hole (302) is provided at the lower end of the collecting box (3) at a position corresponding to the second rack (55); The second rack (55) is arranged inside the slide groove (202), and the sealing shell (2) is provided with a moving groove (2021) at a position corresponding to the second rack (55).

5. The waste heat recovery device according to claim 2, characterized in that: A top cover (21) is detachably fixed to the upper end of the sealing shell (2); the regulating unit (4) comprises a hydraulic rod (41) fixed to the upper end of the top cover (21), a top plate (42) arranged at the power output end of the hydraulic rod (41), and a push rod (43) fixed to the lower end of the top plate (42) and passing through the top cover (21); the lower end of the push rod (43) is fixed to the slider (51).

6. A waste heat recovery device according to claim 2, characterized in that: The filtering device comprises a first filter screen (11) fixed inside the transmission pipe (1) and a second filter screen (12) fixed inside the transmission pipe (1), the cleaning brush (53) is located between the first filter screen (11) and the second filter screen (12), and a dust outlet (201) is provided at the lower end of the sealing shell (2).

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