Reinforced heat transfer heat exchanger convenient to clean

Abstract

The utility model relates to the technical field of heat exchangers, in particular to an enhanced heat transfer heat exchanger convenient to clean, which comprises a plurality of cleaning auxiliary mechanisms, each cleaning auxiliary mechanism comprises a support frame, the support frames are fixedly mounted on the inner wall of a tube box, side plates are symmetrically and fixedly mounted on the surface of each support frame, and the side plates are fixedly mounted on the inner wall of the tube box. And guide grooves are formed in the side plates correspondingly, a guide plate is slidably mounted in each guide groove, movable frames are fixedly mounted on the sides, close to each other, of the guide plates in the same group correspondingly, and abutting plates are fixedly mounted at the ends, close to the heat exchange pipes, of the movable frames correspondingly. The device has the beneficial effects that a stepping motor is matched with a cam and a spring, a movable frame can be pushed to reciprocate along a guide groove, then an abutting plate can make continuous contact with a heat exchange pipe, the heat exchange pipe can correspondingly vibrate at the moment, incrustation attached to the inner wall of the heat exchange pipe can fall off, workers can be assisted in cleaning and maintaining the heat exchange pipe, time is saved, and the working efficiency is improved. Labor cost is reduced, and cleaning efficiency of the heat exchanger is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat transfer enhanced heat exchanger convenient for cleaning. Background Technique

[0002] A heat exchanger is a common heat exchange device, mainly used for cooling requirements in industrial systems. The heat exchanger uses the internal tube bundle for heat exchange, and has a relatively high heat exchange efficiency. Its working principle and structural design enable it to be widely used in multiple industries, mainly for heat exchange in large oil refineries, chemical plants, thermal power plants, etc.

[0003] In the prior art, a heat exchanger mainly consists of a shell, a tube sheet, a partition plate, a cooling tube bundle, etc. With the long-term use of the heat exchanger, the staff needs to clean and maintain it regularly. Among them, after long-term use, scale will form on the inner wall of the tube bundle, affecting the normal use of the tube bundle. Generally, the staff will use any one of mechanical treatment, high-pressure flushing or chemical descaling for cleaning. However, due to the large number of tube bundles in the heat exchanger, it is more cumbersome for the staff to clean, resulting in low cleaning efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat transfer enhanced heat exchanger convenient for cleaning, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat transfer enhanced heat exchanger convenient for cleaning, including: a tube box and a plurality of heat exchange tubes, the heat exchange tubes are uniformly distributed and installed in the middle of the tube box, and a plurality of uniformly distributed partition plates are arranged on the outer periphery of the heat exchange tubes;

[0006] A plurality of cleaning auxiliary mechanisms, the cleaning auxiliary mechanisms are uniformly distributed on the inner wall of the tube box, each group of cleaning auxiliary mechanisms includes a support frame, the support frames are fixedly installed on the inner wall of the tube box, symmetrically fixed installation side plates are arranged on the surface of each support frame, guide grooves are opened in each side plate, guide plates are slidably installed in each guide groove, a moving frame is fixedly installed on one side of the same group of guide plates close to each other, and the lower part of the moving frame penetrates through one side of the same group of support frames close to the heat exchange tubes, springs are sleeved on the lower parts of the moving frames, abutting plates are fixedly installed at one ends of the moving frames close to the heat exchange tubes, and a plurality of uniformly distributed rubber blocks are fixedly installed on one side of the abutting plates away from the moving frames;

[0007] A driving mechanism, the driving mechanisms are arranged in the same group of support frames, and the driving mechanism is used to drive the moving frame to move.

[0008] Preferably, a tube sheet is fixedly installed on one side of the heat exchange tube, and a plurality of uniformly distributed hole grooves are opened on the surface of the tube sheet.

[0009] Preferably, a U-shaped tube is provided on the other side of the heat exchange tube, and a gasket is provided between adjacent U-shaped tubes.

[0010] Preferably, a plurality of uniformly distributed tie rods are provided in the middle of the partition plate.

[0011] Preferably, the driving mechanism includes a stepping motor, the stepping motors are respectively fixedly installed in the same group of support frames, and cams are fixedly installed at the driving ends of the stepping motors.

[0012] Preferably, the cleaning auxiliary mechanism and the partition plate are alternately distributed.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the enhanced heat transfer heat exchanger that is convenient to clean proposed by the present utility model, a cleaning auxiliary mechanism is provided. The stepping motor cooperates with the cam and the spring, which can push the moving frame to reciprocate along the guide groove. Furthermore, the abutting plate can continuously contact the heat exchange tube. At this time, the heat exchange tube will vibrate accordingly, and the scale adhering to its inner wall can be shed, which can assist the staff in cleaning and maintaining the heat exchange tube, saving time, reducing labor costs, and improving the cleaning efficiency of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is the partial structure schematic diagram of the heat exchange tube of the present utility model;

[0017] Figure 3 is the internal structure schematic diagram of the tube box of the present utility model;

[0018] Figure 4 is the partial structure schematic diagram of the cleaning auxiliary mechanism of the present utility model.

[0019] In the figure: 1, tube box; 2, gasket; 3, tie rod; 4, partition plate; 5, heat exchange tube; 6, tube sheet; 7, cleaning auxiliary mechanism; 701, support frame; 702, cam; 703, side plate; 704, guide plate; 705, guide groove; 706, moving frame; 707, spring; 708, abutting plate; 709, rubber block; 7010, stepping motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to clearly and completely describe the purpose and technical solution of the present utility model and make its advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a heat transfer enhanced heat exchanger that is convenient to clean, including: a tube box 1 and a plurality of heat exchange tubes 5. The heat exchange tubes 5 are evenly distributed and installed in the middle of the tube box 1. A plurality of evenly distributed partition plates 4 are provided on the outer periphery of the heat exchange tubes 5, and a plurality of cleaning auxiliary mechanisms 7 are provided. The cleaning auxiliary mechanisms 7 are evenly distributed on the inner wall of the tube box 1. Each cleaning auxiliary mechanism 7 includes a support frame 701, and the support frames 701 are fixedly installed on the inner wall of the tube box 1. Symmetrically fixed on the surface of each support frame 701 are side plates 703. Guide grooves 705 are opened in the side plates 703. A guide plate 704 is slidably installed in each guide groove 705. On the side where the guide plates 704 of the same group are close to each other, a moving frame 706 is fixedly installed, and the lower part of the moving frame 706 penetrates through the side of the support frame 701 of the same group close to the heat exchange tube 5. Springs 707 are sleeved on the lower parts of the moving frames 706. At one end of the moving frame 706 close to the heat exchange tube 5, a contact plate 708 is fixedly installed. On the side of the contact plate 708 away from the moving frame 706, a plurality of evenly distributed rubber blocks 709 are fixedly installed. When the staff cleans and maintains the heat exchange tubes 5 in the heat exchanger, by controlling the driving mechanism, at this time, the moving frame 706 cooperates with the guide plate 704 and can move along the guide groove 705 on the side plate 703. With the cooperation of the spring 707, the reciprocating movement of the moving frame 706 can be realized, and then the contact plate 708 will continuously knock on the surface of the heat exchange tube 5, so that the heat exchange tube 5 can vibrate, and thus can assist the staff in cleaning the scale on the inner wall of the heat exchange tube 5. At the same time, the contact plate 708 is provided with rubber blocks 709, which can avoid rigid contact between the contact plate 708 and the heat exchange tube 5, causing deformation of the heat exchange tube 5 and affecting the normal use of the heat exchange tube 5.

[0022] A tube sheet 6 is fixedly installed on one side of the heat exchange tube 5. A plurality of evenly distributed holes are opened on the surface of the tube sheet 6. A U-shaped tube is provided on the other side of the heat exchange tube 5, and gaskets 2 are provided between adjacent U-shaped tubes. By providing gaskets 2 on the U-shaped tubes and the gaskets 2 are made of elastic materials, the U-shaped tube part of the heat exchange tube 5 can be limited, and the stability of the position of the U-shaped tube can be increased. A plurality of evenly distributed tie rods 3 are provided in the middle of the partition plate 4. By providing the tie rods 3, the partition plates 4 on the heat exchange tubes 5 can be limited to prevent the partition plates 4 from shifting during the normal use of the heat exchanger.

[0023] The driving mechanisms are all arranged within the same set of support frames 701. The driving mechanisms are used to drive the movement of the moving frame 706. The driving mechanisms include stepper motors 7010 which are respectively fixedly installed within the same set of support frames 701. Cam 702 is fixedly installed at the driving end of each stepper motor 7010. The cleaning auxiliary mechanisms 7 and the partition plates 4 are arranged alternately. By controlling the stepper motors 7010, at this time, the stepper motors 7010 will drive the cams 702 to rotate. When one end of the cam 702 contacts the moving frame 706, the moving frame 706 will be squeezed and move, and the spring 707 will be compressed. At this time, the abutting plate 708 contacts the heat exchange tube 5. When the cam 702 separates from the moving frame 706, the spring 707 will reset the moving frame 706, and then the abutting plate 708 will disengage from the heat exchange tube 5. In this way, reciprocatingly, the heat exchange tube 5 can be vibrated to assist the staff in cleaning the scale inside the heat exchange tube 5. Since the partition plates 4 and the pull rods 3 are provided on the heat exchange plate, a plurality of heat exchange tubes 5 can be formed into a whole, and thus all the heat exchange tubes 5 can be vibrated. At the same time, the staff can change the contact frequency between the abutting plate 708 and the heat exchange tube 5 by controlling the rotation frequency of the stepper motors 7010, and the installation quantity of the cleaning auxiliary mechanisms 7 needs to be judged by the staff according to the actual situation.

[0024] During the actual use process, when the staff is cleaning impurities such as scale inside the heat exchange tube 5, external auxiliary equipment performs high-pressure flushing inside the heat exchange tube 5 or uses chemical reagents for cleaning. Then, the stepper motors 7010 in the driving mechanisms cooperate with the cams 702 to push the moving frame 706 to move along the guide groove 705. With the cooperation of the spring 707, the moving frame 706 drives the abutting plate 708 to reciprocate along the guide groove 705. As the abutting plate 708 continuously contacts the surface of the heat exchange tube 5, the heat exchange tube 5 will vibrate accordingly, enabling the scale adhered to the inner wall of the heat exchange tube 5 to fall off, and thus assisting the staff in cleaning and maintaining the heat exchange tube 5, reducing the labor cost, and improving the cleaning efficiency of the heat exchanger.

[0025] Although the above describes the illustrative specific embodiments of the present application for the convenience of those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those ordinary skilled in the art in the technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all application creations using the concept of the present application are within the scope of protection.

Claims

1. An enhanced heat transfer heat exchanger that is easy to clean, comprising: A pipe box (1) and a plurality of heat exchange pipes (5), wherein the heat exchange pipes (5) are evenly distributed and installed in the middle of the pipe box (1), and characterized in that a plurality of evenly distributed partitions (4) are provided on the outer periphery of the heat exchange pipes (5); A plurality of groups of cleaning auxiliary mechanisms (7), wherein the cleaning auxiliary mechanisms (7) are evenly distributed on the inner wall of the pipe box (1), each group of the cleaning auxiliary mechanisms (7) comprises a support frame (701), the support frame (701) is fixedly mounted on the inner wall of the pipe box (1), a side plate (703) is symmetrically fixedly mounted on the surface of each of the support frames (701), a guide groove (705) is provided in the side plate (703), and a guide plate (704) is slidably mounted in each of the guide grooves (705), A movable frame (706) is fixedly installed on the side close to each other of the guide plates (704) of the same group, and the lower part of the movable frame (706) passes through the side close to the heat exchange tube (5) of the support frame (701) of the same group, and a spring (707) is sleeved on the lower part of the movable frame (706). An abutment plate (708) is fixedly installed on the end of the movable frame (706) close to the heat exchange tube (5), and a plurality of evenly distributed rubber blocks (709) are fixedly installed on the side of the abutment plate (708) away from the movable frame (706); The driving mechanisms are all arranged in the same group of support frames (701), and are used to drive the moving frame (706) to move.

2. The heat exchanger with enhanced heat transfer and convenient cleaning according to claim 1, characterized in that: A tube sheet (6) is fixedly mounted on one side of the heat exchange tube (5), and a plurality of evenly distributed holes and grooves are provided on the surface of the tube sheet (6).

3. The heat exchanger with enhanced heat transfer and convenient cleaning according to claim 1, characterized in that: A U-shaped tube is provided on the other side of the heat exchange tube (5), and gaskets (2) are provided between adjacent U-shaped tubes.

4. The heat exchanger with enhanced heat transfer and convenient cleaning according to claim 1, characterized in that: A plurality of evenly distributed pull rods (3) are provided in the middle of the partition (4).

5. The heat exchanger with enhanced heat transfer and convenient cleaning according to claim 1, characterized in that: The driving mechanism comprises a stepping motor (7010), wherein the stepping motors (7010) are respectively fixedly mounted in the same group of support frames (701), and a cam (702) is fixedly mounted on the driving end of each stepping motor (7010).

6. The heat exchanger with enhanced heat transfer and convenient cleaning according to claim 1, characterized in that: The cleaning auxiliary mechanisms (7) and the partitions (4) are distributed alternately.

Images