Waste gas heat recovery device

Abstract

The utility model belongs to the field of environmental protection equipment, and particularly relates to a waste gas heat recovery device which comprises a heat exchange box, a dust removal assembly is arranged on the right side of the heat exchange box and comprises a positioning shell, the surface of the positioning shell is fixedly connected with the inner wall of the heat exchange box, and the left side of the positioning shell is communicated with a gas inlet pipe. The left side of the positioning shell communicates with a heat exchange pipe, and the left side of the heat exchange pipe is fixedly connected with a heat exchange box. By arranging the heat exchange pipe, high-heat waste gas can be guided into the heat exchange box, normal-temperature water in an inner cavity of the heat exchange box can be evenly heated, dust and impurities in the waste gas can be filtered and cleaned through the dust removal assembly, the impurities are prevented from entering the heat exchange pipe, and therefore the maintenance efficiency of workers is improved, and the problem that when an existing waste gas heat recovery device is used, the maintenance cost is low is solved. Although waste gas heat can be converted, dust and impurities are prone to being attached to the inner wall of a heat exchange pipeline in the heat exchange process, and the heat exchange efficiency of the heat exchange pipeline is prone to being affected when cleaning is not conducted in time.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection equipment, in particular to a waste gas heat recovery device. Background Art

[0002] Waste gas is inevitably generated in industrial production. These industrial waste gases contain a large amount of waste heat. However, general factories rarely perform heat recovery during the exhaust process. This will cause the internal heat to be discharged into the external environment along with the hot gas, forming a "heat island effect" and causing certain damage to the natural environment.

[0003] Although the existing waste gas heat recovery device can convert the waste gas heat when in use, during the heat exchange process, the inner wall of the heat exchange pipe is easily adhered to dust and impurities, which can easily affect the heat exchange efficiency of the heat exchange pipe if not cleaned in time; therefore, an waste gas heat recovery device is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve the problem that the existing exhaust gas heat recovery device can convert the exhaust gas heat during use, but during the heat exchange process, the inner wall of the heat exchange pipe is easily adhered to dust and impurities, and if not cleaned in time, it is easy to affect the heat exchange efficiency of the heat exchange pipe. The utility model proposes an exhaust gas heat recovery device.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an exhaust gas heat recovery device, comprising a heat exchange box, a dust removal assembly is arranged on the right side of the heat exchange box, the dust removal assembly comprises a positioning shell, the surface of the positioning shell is fixedly connected to the inner wall of the heat exchange box, the left side of the positioning shell is connected to an air intake pipe, the left side of the positioning shell is connected to a heat exchange pipe, the left side of the heat exchange pipe is fixedly connected to the heat exchange box, the left side of the heat exchange pipe is connected to an exhaust pipe, the top of the heat exchange box is connected to a water inlet pipe, and the bottom of the heat exchange box is connected to a drain pipe;

[0006] The inner cavity of the positioning shell is provided with an air guide plate and a filter plate, the inner cavity of the filter plate is rotatably connected to a transmission rod through a bearing, a surface fixed sleeve of the transmission rod is provided with fan blades and a cleaning brush, the right side of the cleaning brush is in contact with the filter plate, and a bottom shell is fixedly installed on the bottom of the positioning shell by bolts.

[0007] Preferably, the front and rear sides of the positioning shell are both provided with limiting plates, and the right side of the limiting plate is fixedly connected to the heat exchange box by bolts.

[0008] Preferably, the rear side of the inner cavity of the positioning shell is rotatably connected to a rotating rod via a bearing, and the front side of the rotating rod penetrates to the front side of the positioning shell and is fixedly connected to a torsion block.

[0009] By arranging the cooperation of the rotating rod and the torsion block, the impurities squeezed and blocked in the inner cavity of the positioning shell can be cleaned, thereby improving the maintenance efficiency of the staff.

[0010] Preferably, an observation window is provided on the front side of the heat exchange box, and the material of the observation window is transparent glass.

[0011] Preferably, the heat exchange tube is made of metal and has a serpentine shape.

[0012] The heat exchange tubes made of metal and serpentine in shape not only have good heat conduction effect, but also can evenly heat the room temperature water in the inner cavity of the heat exchange box.

[0013] Preferably, a surface fixing sleeve of the air intake pipe is provided with a positioning ring, and the right side of the positioning ring is fixedly connected to the positioning shell.

[0014] Preferably, retaining blocks are provided on the front and rear sides of the heat exchange tubes, and a side of the retaining blocks away from the heat exchange tubes is fixedly connected to the heat exchange box.

[0015] The utility model is beneficial in that:

[0016] The utility model can introduce high-calorie exhaust gas into the heat exchange box by arranging heat exchange pipes, uniformly heat the room-temperature water in its inner cavity, and utilize a dust removal component to filter and clean dust and impurities in the exhaust gas to prevent impurities from entering the heat exchange pipes, thereby improving the maintenance efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the waste gas heat recovery device of the utility model;

[0019] Figure 2 This is a cross-sectional view of the heat exchange box structure of the utility model;

[0020] Figure 3 It is a left side view of the structure of the air intake pipe, heat exchange pipe and exhaust pipe of the utility model;

[0021] Figure 4 It is a structural cross-sectional view of the dust removal component and the air intake pipe of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the dust removal component of the utility model.

[0023] In the figure: 1. heat exchange box; 2. dust removal assembly; 201. positioning shell; 202. air guide plate; 203. filter plate; 204. transmission rod; 205. fan blade; 206. cleaning brush; 207. bottom shell; 208. limit plate; 209. rotating rod; 210. twist block; 3. air inlet pipe; 4. heat exchange pipe; 5. exhaust pipe; 6. water inlet pipe; 7. drain pipe; 8. observation window; 9. positioning ring; 10. retaining block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in 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 in 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.

[0025] The following is combined with Figure 1-5 To further explain this application in detail,

[0026] The present application discloses an exhaust gas heat recovery device. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , an exhaust gas heat recovery device, comprising a heat exchange box 1, a dust removal assembly 2 is arranged on the right side of the heat exchange box 1, the dust removal assembly 2 comprises a positioning shell 201, the surface of the positioning shell 201 is fixedly connected to the inner wall of the heat exchange box 1, the left side of the positioning shell 201 is connected to an air intake pipe 3, the left side of the positioning shell 201 is connected to a heat exchange pipe 4, the left side of the heat exchange pipe 4 is fixedly connected to the heat exchange box 1, the left side of the heat exchange pipe 4 is connected to an exhaust pipe 5, the top of the heat exchange box 1 is connected to a water inlet pipe 6, and the bottom of the heat exchange box 1 is connected to a drain pipe 7;

[0027] The inner cavity of the positioning shell 201 is provided with an air guide plate 202 and a filter plate 203. The inner cavity of the filter plate 203 is rotatably connected to a transmission rod 204 through a bearing. The surface of the transmission rod 204 is fixedly sleeved with a fan blade 205 and a cleaning brush 206. The right side of the cleaning brush 206 is in contact with the filter plate 203. The bottom of the positioning shell 201 is fixedly installed with a bottom shell 207 by bolts. By arranging the heat exchange tube 4, high-calorie exhaust gas can be introduced into the heat exchange box 1, and the normal temperature water in its inner cavity can be evenly heated. In addition, by using the dust removal component 2, dust and impurities in the exhaust gas can be filtered and cleaned to prevent impurities from entering the heat exchange tube 4, thereby improving the maintenance efficiency of the staff.

[0028] Reference Figure 3The front and rear sides of the positioning shell 201 are both provided with limiting plates 208, and the right side of the limiting plate 208 is fixedly connected to the heat exchange box 1 by bolts; by providing the limiting plate 208, the positioning shell 201 can be fixed to prevent the positioning shell 201 from falling off during use.

[0029] Reference Figure 4 and Figure 5 The rear side of the inner cavity of the positioning shell 201 is rotatably connected to a rotating rod 209 through a bearing, and the front side of the rotating rod 209 penetrates to the front side of the positioning shell 201 and is fixedly connected to a torsion block 210; by arranging the rotating rod 209 and the torsion block 210 in cooperation, the impurities squeezed and blocked in the inner cavity of the positioning shell 201 can be cleaned, thereby improving the maintenance efficiency of the staff.

[0030] Reference Figure 1 An observation window 8 is provided on the front side of the heat exchange box 1, and the material of the observation window 8 is transparent glass; by providing the observation window 8 made of transparent glass, it is convenient for staff to observe the heat exchange changes of normal temperature water and improve the heat exchange efficiency of normal temperature water.

[0031] Reference Figure 2 and Figure 3 The heat exchange tube 4 is made of metal and has a serpentine shape. The heat exchange tube 4 made of metal and having a serpentine shape not only has a good heat conduction effect, but also can evenly heat the room temperature water in the inner cavity of the heat exchange box 1.

[0032] Reference Figure 3 and Figure 4 A positioning ring 9 is fixedly sleeved on the surface of the air intake pipe 3, and the right side of the positioning ring 9 is fixedly connected to the positioning shell 201; by providing the positioning ring 9, the air intake pipe 3 can be fixed to prevent the air intake pipe 3 from falling off during use.

[0033] Reference Figure 3 The front and rear sides of the heat exchange tube 4 are both provided with retaining blocks 10, and the side of the retaining block 10 away from the heat exchange tube 4 is fixedly connected to the heat exchange box 1; by providing the retaining block 10, the heat exchange tube 4 can be positioned and the stability of the heat exchange tube 4 during use is improved.

[0034] Working principle: When in use, the dust and impurities in the inner cavity of the positioning shell 201 can be filtered through the filter plate 203 to prevent impurities and dust from entering the inner cavity of the heat exchange tube 4. After the exhaust gas enters the inner cavity of the positioning shell 201, the fan blades 205 are driven by the wind to rotate. When the fan blades 205 rotate, the cleaning brush 206 is driven to rotate, which can clean the dust and impurities on the surface of the filter plate 203, thereby improving the filtering efficiency of the filter plate 203. After the filtered exhaust gas enters the inner cavity of the heat exchange tube 4 through the positioning shell 201, the heat exchange tube 4 made of metal and serpentine in shape can be used to evenly heat the normal temperature water in the inner cavity of the heat exchange box 1. When the staff needs to clean the impurities in the inner cavity of the positioning shell 201, the bottom shell 207 is opened and the twist block 210 is rotated. When the twist block 210 rotates, the rotating rod 209 is driven to rotate, and the blocking impurities in the inner cavity of the positioning shell 201 can be cleaned out by the rotating rod 209, thereby improving the maintenance efficiency of the staff.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An exhaust gas heat recovery device, characterized in that: It comprises a heat exchange box (1), a dust removal assembly (2) is arranged on the right side of the heat exchange box (1), the dust removal assembly (2) comprises a positioning shell (201), the surface of the positioning shell (201) is fixedly connected to the inner wall of the heat exchange box (1), the left side of the positioning shell (201) is connected to an air intake pipe (3), the left side of the positioning shell (201) is connected to a heat exchange pipe (4), the left side of the heat exchange pipe (4) is fixedly connected to the heat exchange box (1), the left side of the heat exchange pipe (4) is connected to an exhaust pipe (5), the top of the heat exchange box (1) is connected to a water inlet pipe (6), and the bottom of the heat exchange box (1) is connected to a drain pipe (7); The inner cavity of the positioning shell (201) is provided with an air guide plate (202) and a filter plate (203); the inner cavity of the filter plate (203) is rotatably connected to a transmission rod (204) via a bearing; a fan blade (205) and a cleaning brush (206) are fixedly sleeved on the surface of the transmission rod (204); the right side of the cleaning brush (206) is in contact with the filter plate (203); and a bottom shell (207) is fixedly mounted on the bottom of the positioning shell (201) via bolts.

2. The exhaust gas heat recovery device according to claim 1, characterized in that: Limiting plates (208) are provided on the front and rear sides of the positioning shell (201), and the right side of the limiting plate (208) is fixedly connected to the heat exchange box (1) by means of bolts.

3. The exhaust gas heat recovery device according to claim 1, characterized in that: The rear side of the inner cavity of the positioning shell (201) is rotatably connected to a rotating rod (209) via a bearing, and the front side of the rotating rod (209) penetrates to the front side of the positioning shell (201) and is fixedly connected to a torsion block (210).

4. The exhaust gas heat recovery device according to claim 1, characterized in that: An observation window (8) is provided on the front side of the heat exchange box (1), and the material of the observation window (8) is transparent glass.

5. The exhaust gas heat recovery device according to claim 1, characterized in that: The heat exchange tube (4) is made of metal and has a serpentine shape.

6. The exhaust gas heat recovery device according to claim 1, characterized in that: A fixed sleeve on the surface of the air intake pipe (3) is provided with a positioning ring (9), and the right side of the positioning ring (9) is fixedly connected to the positioning shell (201).

7. The exhaust gas heat recovery device according to claim 1, characterized in that: The front side and the rear side of the heat exchange tube (4) are both provided with retaining blocks (10), and the side of the retaining block (10) away from the heat exchange tube (4) is fixedly connected to the heat exchange box (1).

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