Anti-blocking shell-and-tube heat exchanger with built-in turbulent flow blades

Abstract

The utility model belongs to the technical field of shell-and-tube heat exchangers, and particularly relates to an anti-blocking shell-and-tube heat exchanger with built-in spoiler blades, which comprises a shell, a flow guide cavity is arranged at the position, close to the left side, of an inner cavity of the shell, a plurality of heat exchange tubes are assembled in the inner cavity of the shell, spoilers are fixedly connected to the inner wall of the shell, the heat exchange tubes penetrate through the spoilers, and the spoilers are fixedly connected to the inner wall of the shell. Drainage pipes are fixedly connected to the positions, close to the two sides, of the side wall of the shell, and guide pipes are fixedly connected to the positions, located on the upper side and the lower side of the flow guide cavity, of the side wall of the shell; cleaning plates are arranged on the sides, located on the spoilers, of the inner cavity of the shell, through holes corresponding to the heat exchange pipes are formed in the side walls of the cleaning plates, and the heat exchange pipes penetrate through the through holes. The heat exchange tube can be conveniently cleaned in a non-stop state, dirt blockage is prevented, liquid circulation is prevented from being affected, and therefore the heat exchange effect of the heat exchange tube is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of shell and tube heat exchangers, specifically relating to an anti-clogging shell and tube heat exchanger with built-in turbulence-inducing blades. Background Technology

[0002] A shell-and-tube heat exchanger, also known as a tubular heat exchanger, is an indirect heat exchanger that uses the walls of a bundle of tubes in a closed shell as the heat transfer surface. Hot and cold fluids flow in opposite directions on the tube side (inside the tubes) and the shell side (outside the tubes), exchanging heat through the metal tube walls. The hot fluid transfers heat to the tube walls, which in turn transfer heat to the cold fluid, thus achieving heat exchange between the hot and cold fluids and achieving the purpose of heating or cooling.

[0003] In existing shell-and-tube heat exchangers, the tube bundles are densely packed with small gaps between them. Over time, the liquid is easily affected by temperature, causing scale to adhere to the tube bundles. This can lead to poor liquid flow between the tubes and blockages. Current methods for cleaning the tube bundles generally involve high-pressure water flushing, brushing, or chemical soaking. However, all of these methods require shutting down the shell-and-tube heat exchanger. This is not only cumbersome and sometimes requires disassembling the shell, but also disrupts normal production and is not conducive to practical use. Utility Model Content

[0004] The purpose of this invention is to provide a shell-and-tube heat exchanger with built-in turbulence-inducing blades that prevents clogging of the heat exchange tubes without shutting down the system, thus preventing dirt from clogging the tubes and affecting the flow of liquid, thereby improving the heat exchange efficiency.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A shell-and-tube heat exchanger with built-in baffles for preventing clogging includes a shell, a flow guide cavity is provided in the inner cavity of the shell near the left side, a plurality of heat exchange tubes are assembled in the inner cavity of the shell, a baffle is fixedly connected to the inner wall of the shell, the heat exchange tubes pass through the baffle, a flow guide tube is fixedly connected to the side wall of the shell near both sides, and a guide tube is fixedly connected to the upper and lower sides of the side wall of the shell located in the flow guide cavity respectively.

[0007] The inner cavity of the shell is provided with a cleaning plate on one side of the baffle. The side wall of the cleaning plate has a through hole corresponding to the heat exchange tube. The heat exchange tube passes through the through hole. The side wall of the cleaning plate has a through groove. A screw sleeve is fixedly connected to the side wall of the cleaning plate near the bottom. The same reciprocating screw is threadedly connected between multiple screw sleeves. The two ends of the reciprocating screw are respectively rotatably connected to the inner wall of the shell. A transmission assembly is provided on the side wall of the shell.

[0008] The spoilers are arranged in an alternating pattern, one above the other.

[0009] Two limiting rods are fixedly connected to the inner wall of the housing, and the limiting rods pass through the cleaning plate and are movably connected to it.

[0010] The transmission assembly includes a mounting plate fixedly connected to the lower side of the housing sidewall. A motor is mounted on the sidewall of the mounting plate. A first bevel gear is fixedly connected to the output end of the motor. A second bevel gear meshes with the upper side of the first bevel gear. The second bevel gear is fixedly connected to a reciprocating lead screw.

[0011] A drain pipe is fixedly connected to the side wall of the lower drainage pipe.

[0012] Both the drainage pipe and the sewage pipe are equipped with control valves on their side walls.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This utility model discloses an anti-clogging shell-and-tube heat exchanger with built-in baffles. Through the cooperation between the shell, heat exchange tubes, cleaning components, and transmission components, it can scrape and clean the dirt adhering to the heat exchange tubes during the operation of the heat exchanger, achieving cleaning without stopping the machine. This avoids dirt clogging and affecting the flow of liquid, thereby effectively improving its heat exchange effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the cleaning plate structure according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the transmission component according to an embodiment of the present invention.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Shell; 2. Heat exchange tube; 3. Baffle plate; 4. Drain pipe; 5. Guide cavity; 6. Guide tube; 7. Cleaning plate; 8. Through groove; 9. Screw sleeve; 10. Reciprocating screw; 11. Limiting rod; 12. Mounting plate; 13. Motor; 14. First bevel gear; 15. Second bevel gear; 16. Drain pipe; 17. Valve. Detailed Implementation

[0021] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0022] like Figures 1-4 As shown, an anti-clogging shell-and-tube heat exchanger with built-in baffles includes a shell 1, a flow guide cavity 5 is provided in the inner cavity of the shell 1 near the left side, a plurality of heat exchange tubes 2 are assembled in the inner cavity of the shell 1, a baffle 3 is fixedly connected to the inner wall of the shell 1, the heat exchange tubes 2 pass through the baffle 3, a flow guide tube 4 is fixedly connected to the side wall of the shell 1 near both sides, and a guide tube 6 is fixedly connected to the upper and lower sides of the side wall of the shell 1 located in the flow guide cavity 5 respectively.

[0023] Cleaning plates 7 are provided on one side of the baffle 3 in the inner cavity of the shell 1. The side wall of the cleaning plate 7 has through holes corresponding to the heat exchange tube 2. The heat exchange tube 2 passes through the through holes. The side wall of the cleaning plate 7 has through grooves 8. The side wall of the cleaning plate 7 is fixedly connected to the bottom surface of the cleaning plate 7. The same reciprocating screw 10 is threadedly connected between multiple screw sleeves 9. The two ends of the reciprocating screw 10 are rotatably connected to the inner wall of the shell 1. The side wall of the shell 1 is provided with a transmission assembly.

[0024] The spoilers 3 are arranged in an alternating pattern, one above the other.

[0025] The staggered distribution of multiple baffles 3 increases the flow path of the liquid inside the shell 1, further improving the heat exchange effect. In addition, the threads on the reciprocating screw 10 are segmented, with the length of each segment corresponding to the distance between the baffles 3 on both sides, which facilitates the reciprocating motion of the cleaning plate 7 between two adjacent baffles 3 to clean the impurities adhering to the heat exchange tube 2.

[0026] like Figure 3 As shown, two limiting rods 11 are fixedly connected to the inner wall of the shell 1. The limiting rods 11 pass through the cleaning plate 7 and are movably connected to it. The limiting rods 11 can support and limit the cleaning plate 7, avoiding excessive friction between the through hole and the heat exchange tube 2, which could cause problems such as uneven translation and wear on the heat exchange tube 2.

[0027] like Figure 2 and Figure 4As shown, the transmission assembly includes a mounting plate 12 fixedly connected to the lower side wall of the housing 1. A motor 13 is mounted on the side wall of the mounting plate 12. A first bevel gear 14 is fixedly connected to the output end of the motor 13. A second bevel gear 15 meshes with the upper side of the first bevel gear 14. The second bevel gear 15 is fixedly connected to a reciprocating lead screw 10. Placing the motor 13 on the outside of the housing 1 avoids damage and corrosion to the motor 13 caused by liquid, further increasing safety during use. Furthermore, the liquid flow will not affect the first bevel gear 14 or the second bevel gear 15, thus achieving efficient transmission.

[0028] like Figure 1 and Figure 2 As shown, a sewage pipe 16 is fixedly connected to the side wall of the lower drainage pipe 4.

[0029] Valves 17 are installed on the side walls of both the drainage pipe 4 and the sewage pipe 16.

[0030] Specifically, when the heat exchange tube 2 is not being cleaned, the valve 17 on the drain pipe 16 is closed, and the liquid is discharged directly from the lower drain pipe 4. When the heat exchange tube 2 needs to be cleaned, the valve 17 on the drain pipe 16 is opened, while the valve 17 on the lower drain pipe 4 is closed. During the liquid flow, the impurities that have been cleaned can be discharged together, achieving the purpose of cleaning without stopping the machine.

[0031] The working principle of this utility model is as follows: When it is necessary to clean the dirt adhering to the heat exchange tube 2, the motor 13 is started. The output end of the motor 13 drives the first bevel gear 14 to rotate. The first bevel gear 14 meshes with the second bevel gear 15 and drives the reciprocating screw 10 to rotate. Since the reciprocating screw 10 is multi-segmented, it drives the cleaning plate 7 to move back and forth through the screw sleeve 9. The impurities adhering to the heat exchange tube 2 can be scraped off through the through hole to achieve the purpose of cleaning and prevent blockage.

[0032] When the liquid flows inside the shell 1, the valve 17 on the drain pipe 4 can be closed and the valve 17 on the drain pipe 16 can be opened. The impurities that are cleaned can be discharged through the drain pipe 16, achieving the purpose of cleaning without stopping the machine and effectively improving the heat exchange effect.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A plug resistant shell and tube heat exchanger with built-in spoiler vanes, characterized by: The utility model relates to a heat exchange device, including shell (1), the shell (1) inner chamber is close to left side and is provided with the flow guide chamber (5), the shell (1) inner chamber is equipped with a plurality of heat exchange pipes (2), the shell (1) inner wall is fixedly connected with the spoiler (3), the heat exchange pipe (2) penetrates the spoiler (3), the shell (1) side wall is close to both sides and is fixedly connected with the drainage pipe (4), the shell (1) side wall is located the upper and lower sides of flow guide chamber (5) respectively and is fixedly connected with the guide pipe (6); The shell (1) inner chamber is located the spoiler (3) one side and is provided with the cleaning plate (7), the cleaning plate (7) side wall is opened in the through -hole corresponding with heat exchange pipe (2), the heat exchange pipe (2) penetrates the through -hole, the cleaning plate (7) side wall is opened with the through slot (8), the cleaning plate (7) side wall is close to the bottom and is fixedly connected with the screw nut (9), a plurality of screw nuts (9) between the same reciprocating screw rod (10) are connected with thread, the reciprocating screw rod (10) both ends are rotatably connected with the shell (1) inner wall, and the shell (1) side wall is provided with transmission assembly.

2. The anti-blocking shell-and-tube heat exchanger with built-in spoiler vanes according to claim 1, characterized in that: The spoiler (3) is staggered distribution.

3. The anti-blocking shell-and-tube heat exchanger with built-in spoiler vanes according to claim 1, characterized in that: The shell (1) inner wall is fixedly connected with two limit rods (11), the limit rod (11) penetrates the cleaning plate (7) and is movably connected with it.

4. The anti-block tube and shell heat exchanger with built-in spoiler vanes according to claim 1, characterized in that: The transmission assembly includes the mounting plate (12) fixedly connected in the shell (1) side wall and located the downside, the mounting plate (12) side wall is installed with the motor (13), the motor (13) output is fixedly connected with the first bevel gear (14), the first bevel gear (14) upper side is engaged with the second bevel gear (15), and the second bevel gear (15) is fixedly connected with the reciprocating screw rod (10).

5. The anti-block tube and shell heat exchanger with built-in spoiler vanes according to claim 1, characterized in that: The drainage pipe (4) side wall is fixedly connected with the blowdown pipe (16) on the downside.

6. The anti-block tube and shell heat exchanger with built-in spoiler vanes according to claim 5, characterized in that: The drainage pipe (4) and blowdown pipe (16) side wall are both installed with control valve (17).

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