Waste gas waste heat recovery device

Abstract

The utility model relates to the technical field of recovery devices, and provides a waste gas waste heat recovery device which comprises a recovery box, a heat exchange pipe, uniform mixing plates, a protection box, a rotating rod, a sealing ball, a cleaning plate, a cleaning strip and a synchronous cleaning assembly, the heat exchange pipe is connected to the recovery box in a penetrating mode, and the uniform mixing plates are obliquely and rotationally installed on one side of the heat exchange pipe; the rotating rod is rotationally connected to the protection box in a penetrating mode, a synchronous rotating seat is arranged between the rotating rod and the multiple uniform mixing plates, the multiple sealing balls are all connected to the heat exchange pipe in a penetrating and sealing mode, and the two cleaning plates are rotationally installed on the lower sides of the sealing balls and used for cleaning impurities on the vertical pipe wall of the heat exchange pipe. The multiple cleaning strips are rotationally connected to one side of each sealing ball and used for cleaning impurities on the transverse pipe wall of the heat exchange pipe. By means of the technical scheme, the problems that in the prior art, the cleaning time of impurities is long, and the waste gas waste heat recovery efficiency is prone to being affected are solved.

Description

Technical Field

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

[0002] Waste gas refers to toxic and harmful gases discharged by humans in the process of production and life, especially chemical plants, steel mills, pharmaceutical plants, coking plants and refineries, etc. The waste gas emitted has a strong odor, seriously polluting the environment and affecting human health. In the process of waste gas treatment, in order to improve energy utilization, waste gas waste heat recovery is carried out. Waste gas waste heat recovery refers to the use of heat energy in waste gas and waste heat, and converting it into electrical energy or thermal energy. In the prior art, waste gas waste heat recovery is usually carried out by passing waste gas into a heat exchange tube in water, so that the heat in the waste gas is transferred to the water for waste heat recovery. However, waste gas usually contains more impurities. After a long period of waste heat recovery, more impurities will remain on the inner wall of the heat exchange tube, which is easy to affect the heat transfer efficiency of the heat exchange tube, thereby easily reducing the waste heat recovery efficiency of the waste gas;

[0003] After searching, the utility model with patent publication number CN219368481U discloses an exhaust gas waste heat recovery device. By opening the bottom cover and rotating the handle to drive the rotating rod to rotate, the scraper inside the heat exchange tube is driven to rotate. The scraper can scrape impurities in the inner cavity of the heat exchange tube. The scraped impurities leave the inner cavity of the heat exchange tube from the lower end of the heat exchange tube, preventing excessive attachment of impurities to the inner wall of the heat exchange tube, which affects the efficiency of heat conduction after the exhaust gas contacts the inner wall of the heat exchange tube. Although it is convenient to scrape impurities in a single heat exchange tube, multiple heat exchange tubes are usually installed on the box body when recovering the waste heat of the exhaust gas. When cleaning multiple heat exchange tubes, it is necessary to open multiple bottom covers in turn, rotate multiple rotating rods and scrapers, and then scrape impurities in multiple heat exchange tubes in turn. The cleaning time of impurities is relatively long, which is easy to affect the waste heat recovery efficiency of the exhaust gas. Utility Model Content

[0004] The utility model provides an exhaust gas waste heat recovery device, which solves the problem in the related art that the cleaning time of impurities is long and the exhaust gas waste heat recovery efficiency is easily affected.

[0005] The technical solution of the utility model is as follows: an exhaust gas waste heat recovery device, comprising a recovery box, a heat exchange tube, a mixing plate, a protection box, a rotating rod, a sealing ball, a cleaning plate, a cleaning bar and a synchronous cleaning component;

[0006] The heat exchange tube is connected to the recovery box through the tube;

[0007] The mixing plates are arranged in plurality, and the plurality of mixing plates are all installed on one side of the heat exchange tube in an inclined and rotatable manner;

[0008] The protection box is installed on the top of the recovery box;

[0009] The rotating rod is rotatably connected to the protection box, and a synchronous rotating seat is provided between the rotating rod and the plurality of mixing plates;

[0010] The sealing balls are provided in plurality, and the plurality of sealing balls are all penetrated and sealedly connected to the heat exchange tube;

[0011] The cleaning plates are provided in two numbers, and the two cleaning plates are rotatably mounted on the lower side of each sealing ball, and are used to clean the impurities on the vertical tube wall of the heat exchange tube;

[0012] The cleaning strips are provided in plurality, and the plurality of cleaning strips are rotatably connected to one side of each sealing ball, and are used to clean impurities on the transverse tube wall of the heat exchange tube;

[0013] The synchronous cleaning assembly is installed between the protective box, a plurality of the cleaning plates and a plurality of the cleaning strips.

[0014] As a preferred technical solution of this application, the synchronous cleaning component includes:

[0015] A connecting rod, wherein the connecting rod is provided in plurality, the plurality of connecting rods are all connected to the protection box in rotation, and the connecting rod is connected to the adjacent sealing ball in a sealing rotation, and the cleaning plate is fixedly connected to the connecting rod;

[0016] A driving gear, wherein the driving gear is provided in plurality, and the plurality of driving gears are respectively mounted on the lower side of the rotating rod and the upper side of the plurality of connecting rods;

[0017] A toothed belt, wherein the toothed belt is provided with a plurality of tooth grooves meshing with the driving gear;

[0018] A driving seat is installed between the connecting rod and the adjacent sealing ball.

[0019] As a further solution of the present application, the drive seat includes:

[0020] A driving gear, the driving gear being fixedly connected to the adjacent connecting rod;

[0021] A cleaning column, the cleaning column penetrates the seal and is rotatably connected to the sealing ball, and a rotating gear meshing with the driving gear is fixedly connected to the cleaning column;

[0022] A cleaning rod, wherein the cleaning rod is arranged in a plurality and the cleaning rod is fixedly connected to the cleaning column and the cleaning strip.

[0023] On the basis of the above scheme, the synchronous rotating seat comprises:

[0024] A mounting frame, the mounting frame is fixedly connected to the top of the recycling box;

[0025] A motor, wherein the motor is mounted at the bottom end of the mounting frame, and an output end of the motor is fixedly connected to the rotating rod;

[0026] A rotating bar, the rotating bar passes through and is rotatably connected to the recycling box, and the plurality of mixing plates are fixedly connected to the rotating bar;

[0027] A main gear is fixedly connected to the rotating rod, and a driven wheel is fixedly connected to the rotating bar, and the main gear is meshed with the driven wheel.

[0028] It is further explained that a plurality of the cleaning plates are provided with ventilation holes, and a plurality of the cleaning rods are provided with a plurality of ventilation ports.

[0029] It should also be noted that the recovery box is connected with a water inlet pipe and a water outlet pipe, and valves are provided on the water inlet pipe and the water outlet pipe.

[0030] The working principle and beneficial effects of the utility model are:

[0031] 1. In the utility model, the waste gas is conveniently transported through the heat exchange tube, and the recycled water can be stored through the recovery box. When the waste gas enters the part of the heat exchange tube located in the recovery box, the heat in the waste gas can be introduced into the recycled water for waste heat recovery;

[0032] 2. In the utility model, the synchronous rotating seat is used to rotate the rotating rod and the multiple mixing plates at the same time. The multiple mixing plates can be rotated together to mix the recycled water in the recycling box, so as to quickly and evenly conduct heat to the recycled water, thereby improving the waste heat recovery efficiency of the recycled water to the exhaust gas;

[0033] 3. In the utility model, when the rotating rod rotates, the multiple connecting rods can be rotated simultaneously through the cooperation of the toothed belt, multiple tooth grooves and multiple driving gears, so as to rotate the multiple cleaning plates at the same time, thereby cleaning the impurities on the multiple vertical tube walls of the heat exchange tube. At the same time, through the cooperation of the connecting rod and the driving seat, the multiple cleaning strips can be rotated at the same time, so as to clean the impurities on the multiple horizontal tube walls of the heat exchange tube;

[0034] 4. In the utility model, the impurities cleaned by the cleaning plate and the cleaning strip can be taken away by the flow of exhaust gas. At the same time, the impurities on the cleaning plate and the cleaning strip can be cleaned by the exhaust gas flowing in multiple vents and multiple vents, so as to reduce the impurities adhering to the cleaning plate and the cleaning strip. When the cleaning plate and the cleaning strip clean the inner wall of the heat exchange tube, the impurities at other positions in the heat exchange tube can also be vibrated and cleaned by the contact vibration between the cleaning plate and the cleaning strip and the impurities.

[0035] 5. Therefore, compared with the prior art, the waste heat recovery device for exhaust gas has a longer cleaning time for impurities, which easily affects the waste heat recovery efficiency of exhaust gas. It is convenient for the device to quickly recover the waste heat of exhaust gas through the cooperation of the recovery box, heat exchange tube and mixing plate. At the same time, it is convenient to quickly clean the impurities in the heat exchange tube through the cooperation of the protective box, rotating rod, synchronous rotating seat, sealing ball, cleaning plate, cleaning strip and synchronous cleaning component, thereby reducing the impact of impurity cleaning on the waste heat recovery efficiency of exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Figure 1 It is a schematic diagram of the structure of the utility model in cross section;

[0038] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0039] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0040] Figure 4 This is a schematic diagram of the structure of the heat exchange tube, mixing plate and toothed belt of the utility model;

[0041] Figure 5 For this utility model Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0042] Figure 6 The utility model is a cross-sectional structural diagram of the sealing ball, the cleaning plate and the cleaning strip.

[0043] In the figure: 1. Recovery box; 2. Heat exchange tube; 3. Mixing plate; 4. Protection box; 5. Rotating rod; 6. Sealing ball; 7. Cleaning plate; 8. Cleaning strip; 9. Connecting rod; 10. Driving gear; 11. Toothed belt; 12. Driving gear; 13. Cleaning column; 14. Rotating gear; 15. Cleaning rod; 16. Mounting frame; 17. Motor; 18. Rotating strip; 19. Main gear; 20. Driven wheel; 21. Water inlet pipe; 22. Water outlet pipe. DETAILED DESCRIPTION

[0044] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] like Figure 1 to Figure 6 As shown, this embodiment proposes an exhaust gas waste heat recovery device, including a recovery box 1, a heat exchange tube 2, a mixing plate 3, a protection box 4, a rotating rod 5, a sealing ball 6, a cleaning plate 7, a cleaning bar 8 and a synchronous cleaning component. The heat exchange tube 2 is connected to the recovery box 1 through the recovery box 1. The recovery box 1 is connected with an inlet pipe 21 and an outlet pipe 22. Valves are provided on the inlet pipe 21 and the outlet pipe 22 to facilitate the recycling of water in and out of the recovery box 1. A plurality of mixing plates 3 are provided, and the plurality of mixing plates 3 are tilted and rotated to be installed on one side of the heat exchange tube 2. On the side, the protection box 4 is installed at the top of the recovery box 1, the rotating rod 5 is rotatably connected to the protection box 4, and a synchronous rotating seat is arranged between the rotating rod 5 and the plurality of mixing plates 3, the sealing ball 6 is arranged in plurality, and the plurality of sealing balls 6 are all rotatably connected to the heat exchange tube 2, the cleaning plate 7 is arranged in two, and the two cleaning plates 7 are rotatably installed at the lower side of each sealing ball 6, and are used to clean the impurities on the vertical tube wall of the heat exchange tube 2, and the cleaning strip 8 is arranged in plurality, and the plurality of cleaning strips 8 are rotatably connected to one side of each sealing ball 6. The side is used to clean impurities on the lateral tube wall of the heat exchange tube 2. Vents are provided on multiple cleaning plates 7, and multiple vents are provided on multiple cleaning rods 15. By the flow of exhaust gas in the multiple vents and multiple vents, impurities on the cleaning plates 7 and the cleaning strips 8 can be cleaned, so as to reduce the adhesion of impurities on the cleaning plates 7 and the cleaning strips 8. The synchronous cleaning component is installed between the protective box 4, the multiple cleaning plates 7 and the multiple cleaning strips 8. The cleaning plates 7 and the cleaning strips 8 have a certain distance from the inner wall of the heat exchange tube 2. When the impurities accumulate to a certain thickness, the cleaning plates 7 and the cleaning strips 8 will contact the impurities. The impurities cleaned by the cleaning plates 7 and the cleaning strips 8 can be taken away by the flow of exhaust gas. When the cleaning plates 7 and the cleaning strips 8 clean the inner wall of the heat exchange tube 2, the impurities at other positions in the heat exchange tube 2 can also be vibrated and cleaned through the contact vibration between the cleaning plates 7 and the cleaning strips 8 and the impurities. The number and specifications of the cleaning plates 7, the cleaning strips 8 and the synchronous adjustment components can be adjusted according to the length of the heat exchange tube 2.

[0046] like Figure 1 to Figure 6As shown, the synchronous cleaning assembly includes a connecting rod 9, a driving gear 10, a toothed belt 11 and a driving seat, the connecting rod 9 is provided in plurality, and the plurality of connecting rods 9 are all connected to the protective box 4 through rotation, and the connecting rod 9 is connected to the adjacent sealing ball 6 through sealing rotation, the cleaning plate 7 is fixedly connected to the connecting rod 9, the driving gear 10 is provided in plurality, and the plurality of driving gears 10 are respectively installed on the lower side of the rotating rod 5 and the upper side of the plurality of connecting rods 9, the toothed belt 11 is provided with a plurality of tooth grooves meshing with the driving gear 10, and the driving seat is installed between the connecting rod 9 and the adjacent sealing ball 6;

[0047] The driving seat includes a driving gear 12, a cleaning column 13 and a cleaning rod 15. The driving gear 12 is fixedly connected to the adjacent connecting rod 9. The cleaning column 13 penetrates the seal and is rotatably connected to the sealing ball 6. The cleaning column 13 is fixedly connected to a rotating gear 14 meshing with the driving gear 12. A plurality of cleaning rods 15 are provided. The cleaning rods 15 are fixedly connected to the cleaning column 13 and the cleaning bar 8.

[0048] When the rotating rod 5 rotates, multiple connecting rods 9 can be rotated simultaneously through the cooperation of the toothed belt 11, multiple tooth grooves and multiple driving gears 10, so as to simultaneously rotate multiple cleaning plates 7, multiple driving gears 10, multiple driving gears 12 and multiple rotating gears 14, so that multiple cleaning columns 13, multiple cleaning rods 15 and multiple cleaning strips 8 can be rotated simultaneously, thereby facilitating the cleaning of impurities on the vertical tube walls and transverse tube walls of the heat exchange tube 2.

[0049] like Figure 1 to Figure 6 As shown, the synchronous rotating seat includes a mounting frame 16, a motor 17, a rotating bar 18 and a main gear 19, the mounting frame 16 is fixedly connected to the top of the recycling box 1, the motor 17 is installed at the bottom of the mounting frame 16, and the output end of the motor 17 is fixedly connected to the rotating rod 5, the rotating bar 18 penetrates and is rotatably connected to the recycling box 1, a plurality of mixing plates 3 are fixedly connected to the rotating bar 18, the main gear 19 is fixedly connected to the rotating rod 5, and the rotating bar 18 is fixedly connected to a driven wheel 20, and the main gear 19 is meshed with the driven wheel 20;

[0050] By rotating the rotating rod 5 through the motor 17, the rotating rod 5 can rotate the rotating bar 18 through the engagement of the main gear 19 and the driven wheel 20, so as to rotate the multiple mixing plates 3, thereby stirring and mixing the recovered water in the recovery box 1, and further facilitating the recovered water to evenly and quickly recover the waste heat of the exhaust gas.

[0051] In this embodiment, after the exhaust gas enters the part of the heat exchange tube 2 located in the recovery box 1, the motor 17 is started to rotate the rotating rod 5, and the rotating rod 5 can rotate the rotating bar 18 through the meshing of the main gear 19 and the driven wheel 20, so as to rotate the multiple mixing plates 3, so that the recycled water can quickly and evenly recycle the waste heat of the exhaust gas. At the same time, through the cooperation of the rotating rod 5, multiple driving gears 10, the toothed belt 11 and multiple tooth grooves, the multiple connecting rods 9 can be rotated to rotate the multiple cleaning plates 7, so that the impurities on the vertical tube wall of the heat exchange tube 2 can be cleaned through the multiple cleaning plates 7, and the connecting rod 9 can rotate the cleaning column 13 through the cooperation of the driving gear 12 and the rotating gear 14, so as to rotate the multiple cleaning bars 8 through the multiple cleaning rods 15. Through the rotation cooperation of the multiple cleaning bars 8, the impurities on the horizontal tube wall of the heat exchange tube 2 can be cleaned. At the same time, the vibration generated when the multiple cleaning plates 7 and the multiple cleaning bars 8 clean the impurities can also be shaken off and cleaned.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas waste heat recovery device, characterized in that: include: Recycling bin (1); A heat exchange tube (2), the heat exchange tube (2) being connected through the recovery box (1); A mixing plate (3), wherein a plurality of the mixing plates (3) are provided, and the plurality of mixing plates (3) are all installed on one side of the heat exchange tube (2) in a tilted and rotatable manner; A protection box (4), the protection box (4) being installed on the top of the recovery box (1); A rotating rod (5), the rotating rod (5) passing through and rotatably connected to the protection box (4), and a synchronous rotating seat is provided between the rotating rod (5) and the plurality of mixing plates (3); Sealing balls (6), wherein a plurality of sealing balls (6) are provided, and the plurality of sealing balls (6) are all penetrated and sealedly connected to the heat exchange tube (2); A cleaning plate (7), wherein two cleaning plates (7) are provided, and both cleaning plates (7) are rotatably mounted on the lower side of each sealing ball (6) and are used to clean impurities on the vertical tube wall of the heat exchange tube (2); a cleaning strip (8), wherein the cleaning strip (8) is provided in plurality, and the plurality of cleaning strips (8) are rotatably connected to one side of each sealing ball (6) and are used to clean impurities on the transverse tube wall of the heat exchange tube (2); A synchronous cleaning component is installed between the protective box (4), the plurality of cleaning plates (7) and the plurality of cleaning strips (8).

2. The exhaust gas waste heat recovery device according to claim 1, characterized in that: The synchronous cleaning component includes: A connecting rod (9), wherein the connecting rod (9) is provided in plurality, the plurality of connecting rods (9) are all penetrated and rotatably connected to the protection box (4), and the connecting rod (9) and the adjacent sealing ball (6) are penetrated and rotatably connected, and the cleaning plate (7) is fixedly connected to the connecting rod (9); A driving gear (10), wherein the driving gear (10) is provided in plurality, and the plurality of driving gears (10) are respectively mounted on the lower side of the rotating rod (5) and the upper side of the plurality of connecting rods (9); a toothed belt (11), wherein the toothed belt (11) is provided with a plurality of tooth grooves meshing with the driving gear (10); A drive seat, the drive seat being installed between the connecting rod (9) and the adjacent sealing ball (6).

3. The exhaust gas waste heat recovery device according to claim 2, characterized in that: The drive seat comprises: A driving gear (12), the driving gear (12) being fixedly connected to an adjacent connecting rod (9); A cleaning column (13), the cleaning column (13) passing through the seal and being rotatably connected to the sealing ball (6), and a rotating gear (14) meshing with the driving gear (12) being fixedly connected to the cleaning column (13); A cleaning rod (15), wherein a plurality of cleaning rods (15) are provided, and the cleaning rod (15) is fixedly connected to the cleaning column (13) and the cleaning bar (8).

4. The exhaust gas waste heat recovery device according to claim 3, characterized in that: The synchronous rotating seat comprises: A mounting frame (16), the mounting frame (16) being fixedly connected to the top of the recovery box (1); a motor (17), the motor (17) being mounted on the bottom end of the mounting frame (16), and the output end of the motor (17) being fixedly connected to the rotating rod (5); a rotating bar (18), the rotating bar (18) penetrating and rotatably connected to the recycling box (1), and the plurality of mixing plates (3) are all fixedly connected to the rotating bar (18); A main gear (19), the main gear (19) is fixedly connected to the rotating rod (5), and a driven wheel (20) is fixedly connected to the rotating bar (18), and the main gear (19) is meshed with the driven wheel (20).

5. The exhaust gas waste heat recovery device according to claim 4, characterized in that: A plurality of the cleaning plates (7) are each provided with a vent hole, and a plurality of the cleaning rods (15) are each provided with a plurality of vent openings.

6. The exhaust gas waste heat recovery device according to claim 5, characterized in that: The recovery box (1) is connected to a water inlet pipe (21) and a water outlet pipe (22), and valves are provided on the water inlet pipe (21) and the water outlet pipe (22).

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