Anti-ash-deposition heat exchanger

Abstract

The utility model discloses an anti-dust heat exchanger relates to heat exchanger field, including shell, heat exchange tube, motor, drive rod and cleaning mechanism, the heat exchange tube is equidistantly embedded in the interior of shell, the motor is fixed on the outer wall of shell, the drive rod is rotatablely arranged in the interior of shell, and the cleaning mechanism is fixed in the shell. The output end of the motor is in transmission connection with the driving rod, and the cleaning mechanism is movably arranged in the shell through the driving rod. The arrangement mode that the motor, the driving rod and the cleaning mechanism are matched is utilized, the driving rod is driven by the motor to rotate in the positive and negative directions, and therefore the cleaning mechanism can be driven to clean the heat exchange pipe in the shell, and the situation that the heat exchange efficiency of the heat exchange pipe is reduced due to dust accumulation can be avoided; and meanwhile, when the cleaning brush is abraded and needs to be replaced, the cleaning brush can be replaced and installed by removing installation of the installation plate, and the situation that the cleaning effect of equipment on the heat exchange pipe in the shell is affected due to excessive abrasion of the cleaning brush is avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat exchangers, and in particular to a heat exchanger that prevents ash accumulation. Background Technology

[0002] In current industrial production, various types of heat exchangers are widely used for heat exchange, among which shell-and-tube heat exchangers are the most common.

[0003] A shell-and-tube heat exchanger is a heat exchanger in which cold and hot fluids exchange heat through the tube walls. The coolant inside the end cap flows into the inside of another end cap through the tube bundle. During the flow, the high-temperature flue gas outside the tube bundle heats the tube wall and releases heat to the coolant. The coolant absorbs heat through the tube wall and cools the flue gas at the same time. The heated coolant flows into the inside of another end cap to collect heat, thereby achieving the purpose of heat recycling.

[0004] However, flue gas generally contains some particulate impurities. When the flue gas cools on the pipe wall, it carries these impurity particles and forms water droplets on the pipe wall. When the water droplets evaporate, the particulate impurities condense on the pipe wall. Over time, the pipe wall will be covered with a thick layer of impurities. These impurities block heat exchange, resulting in unstable heat exchange. The coolant cannot fully absorb the heat from the flue gas, which leads to low heat exchanger efficiency and inconvenience. Utility Model Content

[0005] The purpose of this invention is to provide a heat exchanger that prevents ash accumulation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-ash accumulation heat exchanger, comprising:

[0007] case;

[0008] Heat exchange tubes are equidistantly embedded inside the shell.

[0009] The motor is fixedly mounted on the outer wall of the housing;

[0010] A drive rod is rotatably disposed inside the housing, and the output end of the motor is connected to the drive rod for transmission.

[0011] A cleaning mechanism is mounted inside the housing via a drive rod.

[0012] Preferably, the cleaning mechanism includes:

[0013] A horizontal plate, which forms a screw drive with the drive rod;

[0014] A sliding rod, the end of which is fixedly connected to the inner wall of the housing, and the cross plate is slidably inserted into the sliding rod;

[0015] The mounting plate has mounting grooves evenly spaced on its outer wall, and the mounting plate is symmetrically arranged inside the mounting grooves.

[0016] The cleaning brush has a semi-circular groove on each side of the mounting plate, and the cleaning brush is fixedly installed inside the semi-circular groove to clean the dust on the heat exchange tube.

[0017] Preferably, the cleaning mechanism further includes:

[0018] The mounting plate has snap-fit ​​grooves at both the top and bottom, and snap-fit ​​holes at both the top and bottom of the inner wall of the mounting groove. One end of the snap-fit ​​rod is slidably inserted into the inner cavity of the snap-fit ​​groove, and the other end of the snap-fit ​​rod is slidably inserted into the inner cavity of the snap-fit ​​hole.

[0019] The mounting plate has grooves at equal intervals on its outer wall that communicate with the snap-fit ​​groove. The pull rod passes through the grooves and is fixedly connected to the snap-fit ​​rod.

[0020] A compression spring is disposed inside the snap-fit ​​groove.

[0021] Preferably, one end of the compression spring is fixedly connected to the snap-fit ​​rod, and the other end of the compression spring is fixedly connected to the inner wall of the snap-fit ​​groove.

[0022] Preferably, a limiting rod is fixedly connected to each opposite side of the mounting plate, and a limiting groove is formed on each opposite side of the mounting plate, with the limiting rod slidingly inserted into the inner cavity of the limiting groove.

[0023] Preferably, sealing plates are fixedly installed at both the top and bottom of the housing by bolts for replacing the mounting plates.

[0024] The technical effects and advantages of this utility model are as follows:

[0025] This invention utilizes a combination of a motor, a drive rod, and a cleaning mechanism. The motor drives the drive rod to rotate in both directions, which in turn drives the cleaning mechanism to clean the heat exchange tubes inside the casing. This prevents dust accumulation that could reduce the heat exchange efficiency of the tubes. Furthermore, when the cleaning brush needs replacement due to wear, it can be easily removed from the mounting plate for replacement. This prevents excessive wear of the cleaning brush from affecting the cleaning effect on the heat exchange tubes inside the casing, ensuring the continuous and stable operation of the equipment, reducing the risk of equipment failure due to untimely cleaning, and providing a reliable guarantee for the efficient operation of the equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2This is a top view of the internal structure of the present invention.

[0028] Figure 3 This is a schematic diagram of the internal structure of the horizontal plate of this utility model.

[0029] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0030] In the diagram: 1. Shell; 2. Heat exchange tube; 3. Motor; 4. Drive rod; 5. Cleaning mechanism; 51. Horizontal plate; 52. Slide rod; 53. Mounting plate; 54. Cleaning brush; 55. Clip rod; 56. Pull rod; 57. Compression spring; 6. Limiting rod; 7. Sealing plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] This utility model provides, for example Figure 1-3 The heat exchanger shown includes a shell 1, heat exchange tubes 2, a motor 3, a drive rod 4, and a cleaning mechanism 5. The heat exchange tubes 2 are equidistantly embedded inside the shell 1. The motor 3 is fixedly installed on the outer wall of the shell 1. The drive rod 4 is rotatably disposed inside the shell 1. The output end of the motor 3 is connected to the drive rod 4 for transmission. The cleaning mechanism 5 is moved inside the shell 1 via the drive rod 4. The motor 3 drives the drive rod 4 to rotate in both directions, thereby driving the cleaning mechanism 5 to clean the heat exchange tubes 2 inside the shell 1. This prevents dust accumulation from reducing the heat exchange efficiency of the heat exchange tubes 2. The motor 3 is electrically connected to an external power supply via an external switch. The switch can be a timer switch, allowing the motor 3 to start once at regular intervals, enabling the cleaning mechanism 5 to clean the heat exchange tubes 2 and prevent dust accumulation.

[0034] Specifically, the cleaning mechanism 5 includes a horizontal plate 51, a slide rod 52, a mounting plate 53, and a cleaning brush 54. The horizontal plate 51 and the drive rod 4 form a screw drive. The end of the slide rod 52 is fixedly connected to the inner wall of the housing 1. The horizontal plate 51 and the slide rod 52 are slidably interlocked. When the drive rod 4 rotates in both directions under the limit of the slide rod 52, the horizontal plate 51 can slide back and forth along the slide rod 52 in the horizontal direction, thereby driving the cleaning brush 54 on the mounting plate 53 to clean the dust on the heat exchange tube 2. The outer wall of the horizontal plate 51 is provided with mounting brushes equidistantly spaced. The mounting plates 53 are symmetrically arranged inside the mounting slots. Two mounting plates 53 can be installed in a single mounting slot. The cleaning brushes 54 inside the two mounting plates 53 can be combined to form a cleaning component for a single heat exchange tube 2. A semi-circular groove is opened on the opposite side of each mounting plate 53. The cleaning brushes 54 are fixedly installed inside the semi-circular grooves and are used to clean the dust on the heat exchange tube 2. The cleaning brushes 54 are semi-circular and the bristles inside are also arranged in a circular pattern. The circularly arranged bristles can apply cleaning force evenly and effectively remove dust and other impurities attached to the heat exchange tube 2.

[0035] Example 2

[0036] Based on Example 1, such as Figure 4 As shown, the cleaning mechanism 5 also includes a snap-fit ​​rod 55, a pull rod 56, and a compression spring 57. The top and bottom ends of the mounting plate 53 are provided with snap-fit ​​grooves, and the top and bottom ends of the inner wall of the mounting grooves are provided with snap-fit ​​holes. One end of the snap-fit ​​rod 55 is slidably inserted into the inner cavity of the snap-fit ​​groove, and the other end of the snap-fit ​​rod 55 is slidably inserted into the inner cavity of the snap-fit ​​hole. The outer wall of the mounting plate 53 is provided with pull grooves at equal intervals that communicate with the snap-fit ​​grooves. The pull rod 56 passes through the pull grooves and is fixedly connected to the snap-fit ​​rod 55. The pull rod 56 can pull the snap-fit ​​rod 55 away from the snap-fit ​​hole, allowing it to move from... The separation of the mounting plate 53 from the mounting groove allows the cleaning brush 54 to be disassembled and replaced, preventing excessive wear of the cleaning brush 54 from affecting the cleaning effect of the equipment on the heat exchange tube 2 inside the housing 1. The compression spring 57 is set inside the snap-fit ​​groove. One end of the compression spring 57 is fixedly connected to the snap-fit ​​rod 55, and the other end of the compression spring 57 is fixedly connected to the inner wall of the snap-fit ​​groove. The compression spring 57 is always in a compressed state, which can provide a stable elastic force to the snap-fit ​​rod 55, so that the snap-fit ​​rod 55 is stably snapped into the snap-fit ​​hole.

[0037] Furthermore, each of the opposite sides of the mounting plate 53 is fixedly connected with a limiting rod 6, and each of the opposite sides of the mounting plate 53 is provided with a limiting groove. The limiting rod 6 is slidably inserted into the inner cavity of the limiting groove. The limiting rods 6 are interlaced with each other, so that the two mounting plates 53 can be assembled into a whole, making it convenient to put the two cleaning brushes 54 on the outside of the heat exchange tube 2.

[0038] Furthermore, sealing plates 7 are bolted to the top and bottom of the housing 1 for replacing the mounting plate 53. By removing the sealing plate 7, the internal mounting plate 53 can be operated through the exposed groove, avoiding large-scale disassembly and assembly of the entire device. Only the operation of cleaning brush 54 and mounting plate 53 needs to be focused, saving maintenance time and labor costs.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust-accumulation-preventing heat exchanger, characterized by , comprising: A shell (1); Heat exchange pipe (2), the heat exchange pipe (2) is embedded equidistantly in the inside of shell (1); Motor (3), the motor (3) is fixedly installed on the outer wall of shell (1); Drive rod (4), the drive rod (4) is rotatably arranged in the inside of shell (1), and the output end of motor (3) is in transmission connection with drive rod (4); Cleaning mechanism (5), the cleaning mechanism (5) is movably arranged in the inside of shell (1) by drive rod (4).

2. A fouling-resistant heat exchanger according to claim 1, wherein The cleaning mechanism (5) comprises: Cross plate (51), the cross plate (51) forms screw drive with drive rod (4); Slide rod (52), the end of slide rod (52) is fixedly connected with the inner wall of shell (1), and the cross plate (51) is in sliding insertion connection with slide rod (52); Mounting plate (53), equidistant mounting grooves are formed in the outer wall of cross plate (51), and mounting plate (53) is symmetrically arranged in the inside of mounting groove; Cleaning brush (54), the opposite side of mounting plate (53) is provided with semicircular groove, cleaning brush (54) is fixedly installed in the inside of semicircular groove, and is used for cleaning dust on heat exchange pipe (2).

3. A fouling-resistant heat exchanger according to claim 2, wherein The cleaning mechanism (5) further comprises: Clamping rod (55), the top end and the bottom end of mounting plate (53) are provided with clamping grooves, the top end and the bottom end of the inner wall of mounting groove are provided with clamping holes, one end of clamping rod (55) is in sliding insertion connection with the inner cavity of clamping groove, and the other end of clamping rod (55) is in sliding insertion connection with the inner cavity of clamping hole; Pull rod (56), equidistant pull grooves are formed in the outer wall of mounting plate (53) and communicated with clamping grooves, and pull rod (56) is fixedly connected with clamping rod (55) through pull groove; Compression spring (57), the compression spring (57) is arranged in the inside of clamping groove.

4. A fouling-resistant heat exchanger according to claim 3, wherein One end of the compression spring (57) is fixedly connected with clamping rod (55), and the other end of the compression spring (57) is fixedly connected with the inner wall of clamping groove.

5. A fouling-resistant heat exchanger according to claim 2, wherein The opposite side of mounting plate (53) is fixedly connected with limiting rod (6), the opposite side of mounting plate (53) is provided with limiting groove, and limiting rod (6) is in sliding insertion connection with the inner cavity of limiting groove.

6. A fouling-resistant heat exchanger according to claim 2, wherein The top end and the bottom end of shell (1) are fixedly provided with sealing plate (7) through bolts, which is used for replacing mounting plate (53).

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