Tube-sheet heat exchanger convenient to assemble

Abstract

The utility model discloses a tube plate type heat exchanger convenient to assemble, which comprises a shell, a tube box heat transfer tube and a fixing bolt, a first mounting disc is fixedly mounted on one side wall of the shell, and a slot is formed in the contact position of an insertion block and a second mounting disc. Fixing bolts are connected among the first mounting disc, the third mounting disc and the fourth mounting disc in a penetrating mode, and fixing nuts are arranged on the fixing bolts. Through the arrangement of the sliding block and the sliding groove, when the heat transfer pipe in the shell needs to be cleaned and overhauled, the whole heat transfer pipe can be pulled out in a sliding mode through the sliding block and the sliding groove only by unscrewing the fixing nuts in sequence, and therefore the heat transfer pipe is easy to disassemble and assemble, and it means that the heat transfer pipe can be cleaned and maintained more easily; therefore, accumulation of dirt and corrosion can be prevented, heat transfer efficiency is kept, the service life of the heat exchanger is prolonged, and maintenance time and labor cost can be reduced due to the fact that the heat transfer pipes are convenient to assemble and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a tube-sheet heat exchanger which is easy to assemble. Background Art

[0002] A heat exchanger, also known as a heat exchanger or heat exchange equipment, is a device used to transfer heat between fluids at different temperatures. It is widely used in various industrial fields, such as chemical, petroleum, energy, food, pharmaceuticals, etc., as well as various public facilities and commercial buildings. The working principle of a heat exchanger is to achieve heat transfer through heat exchange between two or more fluids of different temperatures inside the heat exchanger. These fluids can be gas, liquid or steam. They exchange heat through the heat transfer surface inside the heat exchanger, so that heat is transferred from the high-temperature fluid to the low-temperature fluid.

[0003] Existing heat transfer tubes are fixedly installed inside the heat exchanger shell by welding, which makes it difficult to disassemble and assemble the heat transfer tubes, making it quite difficult to thoroughly clean and maintain the heat transfer tubes. This may lead to a decrease in heat transfer efficiency and may even cause failures due to accumulated dirt or corrosion.

[0004] For example, a shell and tube heat exchanger disclosed in the patent publication number CN218764722U has two ends of the U-shaped tube fixed to the upper and lower areas of the same tube plate, which makes it impossible to remove the U-shaped tube from the shell. Long-term use requires regular cleaning, maintenance, or even replacement of the internal U-shaped tube, making cleaning difficult and inconvenient.

[0005] Therefore, it is necessary to invent a tube-sheet heat exchanger that is easy to assemble to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a tube-sheet heat exchanger that is easy to assemble, so as to solve the problem in the art of inconvenient assembly and cleaning.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a tube-sheet heat exchanger that is easy to assemble, comprising a shell, a tube box, a heat transfer tube and a fixing bolt, wherein one side wall of the shell is fixedly installed with a No. 1 mounting plate, and the other side wall of the shell is fixedly installed with a No. 2 mounting plate, a tube box is provided on one side of the No. 1 mounting plate, and a No. 3 mounting plate is fixedly installed on one side of the tube box, a fixing rod is provided inside the shell, a baffle is provided on the outside of the fixing rod, a No. 4 mounting plate is provided between the No. 1 mounting plate and the No. 3 mounting plate, a sliding block is fixedly installed on the inner wall of the baffle, a sliding groove is provided at the contact position between the sliding block and the fixing rod, the sliding block and the sliding groove are slidably connected, the center line of the fixing rod coincides with the center line of the baffle, an insert block is fixedly installed on the side wall of the baffle, a slot is provided at the contact position between the insert block and the No. 2 mounting plate, fixing bolts are connected through the No. 1 mounting plate, the No. 3 mounting plate and the No. 4 mounting plate, and a fixing nut is provided on the fixing bolt.

[0008] Preferably, a support is fixedly installed on the bottom of the shell, and two supports are provided, so that the support can stably support the heat exchanger.

[0009] Preferably, a No. 1 pipe is fixedly connected to the bottom end of one side of the shell, and a No. 2 pipe is fixedly connected to the top end of the other side of the shell. The No. 1 pipe, the No. 2 pipe and the shell are connected, so that the fluid can circulate through the heat exchanger through the connected No. 1 pipe, the No. 2 pipe and the shell, thereby realizing heat transfer.

[0010] Preferably, the baffle is arranged inside the shell, and there are 6 baffles, which are evenly distributed. A No. 4 mounting plate is fixedly installed on one of the baffles, so that the baffle can support the heat transfer tubes to prevent them from bending and vibrating, thereby ensuring the stability of the heat transfer tubes during operation of the heat exchanger.

[0011] Preferably, a heat transfer tube is provided through the baffle, and there are multiple heat transfer tubes. Both ends of the multiple heat transfer tubes are provided between two baffles, so that the heat transfer tubes can realize heat transfer.

[0012] Preferably, the insert block and the slot are snap-fitted together, and the insert block is designed to be annular in shape, so that the insert block and the slot can improve the stability of the heat transfer tube when installed inside the shell.

[0013] Preferably, the fixing bolt and the fixing nut are threadedly connected, and screw holes are provided at the contact positions between the fixing bolt and the No. 1 mounting plate, the No. 3 mounting plate, and the No. 4 mounting plate, so that the fixing bolt and the fixing nut can fix the installation of the heat transfer tube.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] Through the setting of the sliding block and the sliding groove, when the heat transfer tube inside the shell needs to be cleaned and repaired, it is only necessary to loosen the fixing nuts in sequence, and the heat transfer tube can be slid out through the sliding block and the sliding groove. The easy disassembly and assembly of the heat transfer tube means that it is easier to clean and maintain it, which helps to prevent the accumulation of dirt and corrosion, maintain heat transfer efficiency, and extend the service life of the heat exchanger. At the same time, the convenient assembly and cleaning of the heat transfer tube can reduce maintenance time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the shell section of the present utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the fourth mounting plate of the present invention;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the sliding block and sliding groove of the utility model;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the plug-in block of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Shell; 2. Support; 3. No. 1 pipe; 4. No. 2 pipe; 5. No. 1 mounting plate; 6. No. 2 mounting plate; 7. Pipe box; 8. No. 3 mounting plate; 9. Fixing rod; 10. Baffle; 11. No. 4 mounting plate; 12. Sliding block; 13. Sliding groove; 14. Heat transfer tube; 15. Insert block; 16. Slot; 17. Fixing bolt; 18. Fixing nut. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The utility model provides Figure 1-5The tube-sheet heat exchanger shown is easy to assemble, comprising a shell 1, a tube box 7, a heat transfer tube 14 and a fixing bolt 17. A first mounting plate 5 is fixedly installed on one side wall of the shell 1, a second mounting plate 6 is fixedly installed on the other side wall of the shell 1, a tube box 7 is provided on one side of the first mounting plate 5, a third mounting plate 8 is fixedly installed on one side of the tube box 7, a fixing rod 9 is provided inside the shell 1, a baffle 10 is provided on the outside of the fixing rod 9, a fourth mounting plate 11 is provided between the first mounting plate 5 and the third mounting plate 8, and the inner portion of the baffle 10 is provided with a fixing rod 9. A sliding block 12 is fixedly installed on the wall, and a sliding groove 13 is provided at the contact position between the sliding block 12 and the fixed rod 9. The sliding block 12 and the sliding groove 13 are slidingly connected. The center line of the fixed rod 9 coincides with the center line of the baffle 10. An insert block 15 is fixedly installed on the side wall of the baffle 10, and a slot 16 is provided at the contact position between the insert block 15 and the No. 2 mounting plate 6. A fixing bolt 17 is connected through the No. 1 mounting plate 5, the No. 3 mounting plate 8 and the No. 4 mounting plate 11, and a fixing nut 18 is provided on the fixing bolt 17.

[0025] In one aspect of this embodiment, a support 2 is fixedly installed at the bottom of the shell 1, and two supports 2 are provided. A No. 1 pipe 3 is fixedly connected to the bottom end of one side of the shell 1, and a No. 2 pipe 4 is fixedly connected to the top of the other side of the shell 1. The No. 1 pipe 3 and the No. 2 pipe 4 are connected to the shell 1. The baffle 10 is arranged inside the shell 1. There are 6 baffles 10, and the six baffles 10 are equidistantly distributed. A No. 4 mounting disk 11 is fixedly installed on one of the baffles 10. A heat transfer pipe 14 is provided through the baffle 10. There are multiple heat transfer pipes 14, and both ends of the multiple heat transfer pipes 14 are provided between the two baffles 10. The plug 15 and the slot 16 are snap-fitted. The plug 15 is designed in a circular ring structure. The fixing bolt 17 and the fixing nut 18 are threadedly connected. Screw holes are provided at the contact positions of the fixing bolt 17 and the No. 1 mounting disk 5, the No. 3 mounting disk 8, and the No. 4 mounting disk 11.

[0026] Working principle of this utility model:

[0027] Refer to the instruction manual Figure 1-5When using the present invention, first, the heat exchanger is stably placed in a suitable position through the support 2, and the fluid flows in from the No. 1 pipe 3. The fluid flows in the shell 1, encounters the obstruction of the baffle 10 on the way, and finally flows out from the No. 2 pipe 4. Similarly, the fluid flows in from a pipe on the side of the No. 2 pipe 4, the fluid enters the pipe box 7 and reaches the heat transfer pipe 14, realizing heat exchange and transfer, and finally the fluid flows out through another pipe on the other side of the No. 1 pipe 3. The heat transfer pipe 14 and the baffle 10 inside the shell 1 need to be cleaned and maintained regularly under long-term use. Therefore, multiple fixing nuts 18 can be loosened in sequence to make the fixing When the fixing bolts 17 are detached from the No. 1 mounting plate 5, the No. 3 mounting plate 8, and the No. 4 mounting plate 11, the heat transfer tube 14 and the baffle 10 can be slid out as a whole through the sliding block 12 and the sliding groove 13 to achieve disassembly, making it easier to clean and maintain them. Similarly, when installing the heat transfer tube 14 and the baffle 10, it is only necessary to align the sliding block 12 with the sliding groove 13 for sliding installation, and at the same time, the insert block 15 is engaged and inserted into the slot 16. Finally, the fixing bolts 17 are inserted into the screw holes of the No. 1 mounting plate 5, the No. 3 mounting plate 8, and the No. 4 mounting plate 11, and the fixing nuts 18 are tightened in sequence to ensure the stability of the installation.

Claims

1. A tube-sheet heat exchanger that is easy to assemble, comprising a shell (1), a tube box (7), a heat transfer tube (14) and fixing bolts (17), characterized in that: A first mounting plate (5) is fixedly mounted on one side wall of the housing (1), a second mounting plate (6) is fixedly mounted on the other side wall of the housing (1), a pipe box (7) is provided on one side of the first mounting plate (5), a third mounting plate (8) is fixedly mounted on one side of the pipe box (7), a fixing rod (9) is provided inside the housing (1), a baffle (10) is provided on the outside of the fixing rod (9), a fourth mounting plate (11) is provided between the first mounting plate (5) and the third mounting plate (8), a sliding block (12) is fixedly mounted on the inner wall of the baffle (10), and the sliding block (12) is fixedly mounted on the inner wall of the baffle (10). ) is provided with a sliding groove (13) at the contact position between the fixing rod (9), the sliding block (12) and the sliding groove (13) are in sliding connection, the center line of the fixing rod (9) and the center line of the baffle (10) coincide with each other, an insert block (15) is fixedly installed on the side wall of the baffle (10), a slot (16) is provided at the contact position between the insert block (15) and the second mounting plate (6), a fixing bolt (17) is connected through the first mounting plate (5), the third mounting plate (8) and the fourth mounting plate (11), and a fixing nut (18) is provided on the fixing bolt (17).

2. The tube-sheet heat exchanger that is easy to assemble according to claim 1, characterized in that: A support (2) is fixedly mounted on the bottom of the shell (1), and two supports (2) are provided.

3. The tube-sheet heat exchanger that is easy to assemble according to claim 2, characterized in that: A No. 1 pipe (3) is fixedly connected to the bottom end of one side of the shell (1), and a No. 2 pipe (4) is fixedly connected to the top end of the other side of the shell (1); the No. 1 pipe (3), the No. 2 pipe (4) and the shell (1) are in communication.

4. The tube-sheet heat exchanger that is easy to assemble according to claim 1, characterized in that: The baffles (10) are arranged inside the housing (1), and six baffles (10) are provided. The six baffles (10) are distributed at equal intervals, and a fourth mounting plate (11) is fixedly mounted on one of the baffles (10).

5. The tube-sheet heat exchanger that is easy to assemble according to claim 4, characterized in that: A heat transfer tube (14) is provided through the baffle (10), and a plurality of the heat transfer tubes (14) are provided, with both ends of the plurality of heat transfer tubes (14) being provided between the two baffles (10).

6. The tube-sheet heat exchanger that is easy to assemble according to claim 1, characterized in that: The inserting block (15) and the slot (16) are connected in a snap-fit manner, and the inserting block (15) is designed to be annular in structure.

7. The tube-sheet heat exchanger that is easy to assemble according to claim 1, characterized in that: The fixing bolt (17) and the fixing nut (18) are threadedly connected, and screw holes are provided at the contact positions between the fixing bolt (17) and the first mounting plate (5), the third mounting plate (8), and the fourth mounting plate (11).

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