Tubular heat exchanger

Abstract

The utility model provides a tubular heat exchanger, which relates to the technical field of heat exchangers and comprises a shell, tube plates are fixedly connected inside the shell and close to two ends, five baffle plates are arranged inside the shell at equal intervals, tube bundles penetrate through the surfaces of the baffle plates and are in sliding connection with the surfaces of the baffle plates, and the tube bundles penetrate through the shell. The two ends of the tube bundle penetrate through the tube plate and are fixedly connected with the tube plate, first protruding blocks are fixed to the two ends of each baffle plate, a fixing rod penetrates through and is fixed to the center of each first protruding block, a second protruding block is fixed to the center of one baffle plate, and a screw penetrates through and is in threaded connection with the center of the second protruding block. According to the utility model, one of the baffle plates can be driven to move through the rotation of the screw rod, and at the moment, the baffle plate moves to drive the other baffle plates to reciprocate through the fixing rods, so that the effect of cleaning the surface of the tube bundle can be achieved, and the effect of improving the cleaning efficiency can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a tubular heat exchanger. Background Art

[0002] Shell and tube heat exchanger is also called shell and tube heat exchanger. It is a wall heat exchanger that uses the wall of the tube bundle enclosed in the shell as the heat transfer surface. This heat exchanger has a simple structure, low cost, wide flow cross section, and is easy to clean scale; but the heat transfer coefficient is low and the floor space is large. It can be made of various structural materials (mainly metal materials), can be used under high temperature and high pressure, and is the most widely used type.

[0003] The gaps between the tube bundles inside the existing tubular heat exchangers are usually narrow, and cleaning and maintenance of the tubular heat exchangers are relatively difficult. Regular maintenance and cleaning are required, which usually requires disassembling the tube bundles and using high-pressure water or chemical solutions for cleaning, which increases the complexity and cost of maintenance. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the gaps between the tube bundles inside the tube heat exchanger are usually narrow and the cleaning is troublesome, and a tube heat exchanger is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tubular heat exchanger, comprising a shell, wherein tube sheets are fixedly connected inside the shell and near both ends, five baffles are evenly spaced inside the shell, and tube bundles are penetrated and slidably connected on the surfaces of the baffles, and both ends of the tube bundle penetrate the tube sheets and are fixedly connected thereto, and first protrusions are fixed on both ends of the baffles, and a fixing rod is penetrated and fixed at the center of the first protrusion, a second protrusion is fixed at the center of one of the baffles, and a screw is penetrated and threadedly connected at the center of the second protrusion, and the other end of the screw penetrates one of the tube sheets and is rotatably connected to its bearing, a square hole is opened at the bottom of the shell, a ring plate is fixed at the bottom of the shell and located at the square hole, and a cover plate is installed at the bottom of the ring plate.

[0006] Preferably, flanges are sleeved and fixed on both ends of the shell, and connection holes are evenly spaced on the surface of the flanges.

[0007] Preferably, a circular groove is opened at the center of the four baffles, and a limiting disk is fixed at one end of the screw and located at the circular groove.

[0008] Preferably, a sealing ring groove is formed at the bottom of the ring plate, a sealing ring gasket is embedded in the sealing ring groove, and the bottom of the sealing ring gasket is fixedly connected to the top of the cover plate.

[0009] Preferably, mounting parts are installed on the four ends of the ring plate and the cover plate.

[0010] Preferably, inlet and outlet pipes are installed on the surface of the shell.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, one of the baffles can be driven to move by rotating the screw, and the movement of the baffle can drive the other baffles to move back and forth through the fixed rod, which can play the effect of cleaning the surface of the tube bundle, thereby improving the cleaning efficiency.

[0013] 2. In the utility model, a ring plate is fixedly connected to the bottom of the shell, which can facilitate the collection of sediment inside the shell, thereby facilitating the cleaning of precipitated impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional diagram of the overall structure of a tubular heat exchanger;

[0015] Figure 2 The utility model provides a cross-sectional view of the overall structure of a tubular heat exchanger;

[0016] Figure 3 A partial structural stereogram of a tubular heat exchanger is proposed for the utility model;

[0017] Figure 4 A partial structural cross-sectional view of a tubular heat exchanger is provided for the utility model;

[0018] Figure 5 The utility model provides a partial structural sectional view of a tubular heat exchanger.

[0019] Legend: 1. Shell; 2. Flange; 3. Connection hole; 4. Tube sheet; 5. Tube bundle; 6. Baffle; 7. First protrusion; 8. Round groove; 9. Second protrusion; 10. Screw; 11. Limit plate; 12. Fixing rod; 13. Square hole; 14. Ring plate; 15. Cover plate; 16. Sealing ring groove; 17. Sealing ring gasket; 18. Mounting parts. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment 1, as Figure 1-5 As shown, the utility model provides a tubular heat exchanger, including a shell 1, wherein tube sheets 4 are fixedly connected inside and near both ends of the shell 1, five baffles 6 are evenly spaced inside the shell 1, and tube bundles 5 are penetrated and slidably connected on the surfaces of the baffles 6, and both ends of the tube bundle 5 penetrate the tube sheets 4 and are fixedly connected thereto, and first protrusions 7 are fixed on both ends of the baffles 6, and a fixing rod 12 is penetrated and fixed at the center of the first protrusion 7, a second protrusion 9 is fixed at the center of one of the baffles 6, and a screw 10 is penetrated and threadedly connected at the center of the second protrusion 9, and the other end of the screw 10 penetrates one of the tube sheets 4 and is rotatably connected to its bearing, a square hole 13 is opened at the bottom of the shell 1, a ring plate 14 is fixed at the bottom of the shell 1 and located at the square hole 13, and a cover plate 15 is installed at the bottom of the ring plate 14.

[0023] The effect achieved by the entire embodiment 1 is that a tube sheet 4 is fixedly connected through the interior of the shell 1 and near both ends, five baffles 6 are arranged at equal intervals inside the shell 1, and the surfaces of the baffles 6 are penetrated and slidably connected with tube bundles 5, and both ends of the tube bundle 5 penetrate the tube sheet 4 and are fixedly connected thereto, and first protrusions 7 are fixed at both ends of the baffles 6, and a fixing rod 12 is penetrated and fixed at the center of the first protrusion 7, and a second protrusion 9 is fixed at the center of one of the baffles 6, and a screw 10 is penetrated and threadedly connected at the center of the second protrusion 9, and the other end of the screw 10 penetrates one of the tube sheets 4 and is rotatably connected to its bearing, so that the screw 10 can rotate to drive one of the baffles 6 to move, and the movement of the baffle 6 drives the remaining baffles 6 to move through the fixing rod 12, thereby cleaning the surface of the tube bundle 5, and a square hole 13 is opened through the bottom of the shell 1, and a ring plate 14 is fixed at the bottom of the shell 1 and located at the square hole 13, and a cover plate 15 is installed at the bottom of the ring plate 14, which can facilitate the cleaning of precipitated impurities.

[0024] Embodiment 2, as Figure 1-5 As shown, flanges 2 are sleeved and fixed at both ends of the shell 1, and connecting holes 3 are evenly spaced on the surface of the flange 2; a circular groove 8 is opened at the center of the four baffles 6, and a limit plate 11 is fixed at one end of the screw 10 and located at the circular groove 8; a sealing ring groove 16 is opened at the bottom of the ring plate 14, and a sealing ring gasket 17 is embedded in the sealing ring groove 16, and the bottom of the sealing ring gasket 17 is fixedly connected to the top of the cover plate 15; mounting parts 18 are installed at the four ends of the ring plate 14 and the cover plate 15; inlet and outlet pipes are installed on the surface of the shell 1.

[0025] The effect achieved by the entire embodiment 2 is that flanges 2 are sleeved and fixed at both ends of the shell 1, and connecting holes 3 are opened on the surface of the flange 2 at equal intervals, which can play the role of installing the connecting pipe box and the outer head cover; a circular groove 8 is opened at the center of four baffles 6, and a limiting disk 11 is fixed at one end of the screw 10 and located at the circular groove 8, which can prevent the second protrusion 9 from detaching from the surface of the screw 10; a sealing ring groove 16 is opened at the bottom of the ring plate 14, and a sealing ring gasket 17 is embedded in the sealing ring groove 16. The bottom of the sealing ring gasket 17 is fixedly connected to the top of the cover plate 15, which can play the role of sealing between the ring plate 14 and the cover plate 15; mounting parts 18 are installed at the four ends of the ring plate 14 and the cover plate 15, which can play the role of installing the cover plate 15; inlet and outlet pipes are installed on the surface of the shell 1, which can play the role of inlet and outlet of cold liquid.

[0026] Working principle: When the surface of the tube bundle 5 needs to be cleaned, one of the baffles 6 can be driven to move by rotating the screw 10. At this time, the movement of the baffle 6 can drive the remaining baffles 6 to move back and forth through the fixed rod 12, which can play the role of cleaning the surface of the tube bundle 5, thereby improving the cleaning efficiency. At the same time, some of the impurities after cleaning will precipitate into the inside of the ring plate 14, which can facilitate the collection of precipitated impurities inside the shell 1, thereby facilitating the cleaning of precipitated impurities.

[0027] The wiring diagram of the housing 1 and the mounting member 18 in the present invention is common knowledge in the art, and its working principle is a known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the housing 1 and the mounting member 18 are not explained in detail.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tubular heat exchanger, comprising a shell (1), characterized in that: The shell (1) is fixedly connected with a tube sheet (4) inside and near both ends. Five baffles (6) are arranged at equal intervals inside the shell (1). The surfaces of the baffles (6) are penetrated and slidably connected with a tube bundle (5). Both ends of the tube bundle (5) are penetrated and fixedly connected with the tube sheet (4). Both ends of the baffle (6) are fixed with a first protrusion (7). A fixing rod (12) is penetrated and fixed at the center of the first protrusion (7). A second protrusion (9) is fixed at the center of one of the baffles (6). A screw rod (10) is penetrated and threadedly connected at the center of the second protrusion (9). The other end of the screw rod (10) penetrates one of the tube sheets (4) and is rotatably connected with its bearing. A square hole (13) is opened at the bottom of the shell (1). A ring plate (14) is fixed at the bottom of the shell (1) and located at the square hole (13). A cover plate (15) is installed at the bottom of the ring plate (14).

2. A tubular heat exchanger according to claim 1, characterized in that: Flanges (2) are sleeved and fixed on both ends of the shell (1), and connection holes (3) are evenly spaced on the surface of the flange (2).

3. A tubular heat exchanger according to claim 1, characterized in that: A circular groove (8) is provided at the center of four of the baffles (6), and a limiting disk (11) is fixed at one end of the screw rod (10) and located at the circular groove (8).

4. A tubular heat exchanger according to claim 1, characterized in that: A sealing ring groove (16) is provided at the bottom of the ring plate (14), a sealing ring gasket (17) is embedded in the sealing ring groove (16), and the bottom of the sealing ring gasket (17) is fixedly connected to the top of the cover plate (15).

5. The tubular heat exchanger according to claim 1, characterized in that: The four ends of the ring plate (14) and the cover plate (15) are all equipped with mounting parts (18).

6. A tubular heat exchanger according to claim 1, characterized in that: Inlet and outlet pipes are installed on the surface of the shell (1).

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