Baffle plate mounting structure

Abstract

The utility model relates to a baffle plate installation structure which comprises a cylinder body, a left tube plate, a right tube plate and baffle plates, the baffle plates comprise a plurality of upper baffle plates and a plurality of lower baffle plates, the upper baffle plates comprise a left-end upper baffle plate, a right-end upper baffle plate and a middle upper baffle plate, and the lower baffle plates comprise a left-end upper baffle plate, a right-end upper baffle plate and a middle upper baffle plate. The lower baffle plates comprise a left end lower baffle plate, a right end lower baffle plate and a middle lower baffle plate, the plurality of upper baffle plates are connected through a plurality of upper connecting rods, the plurality of lower baffle plates are connected through a plurality of lower connecting rods, first V-shaped frames are welded to the bottoms of the middle upper baffle plate and the right end upper baffle plate, and second V-shaped frames are welded to the bottoms of the middle upper baffle plate and the right end upper baffle plate. A first V-shaped frame is welded to the top of the left end lower baffle plate, the top of the right end lower baffle plate and the top of the middle lower baffle plate, the first V-shaped frame and the lower connecting rod are in spot welding, second V-shaped frames are welded to the top of the left end lower baffle plate, the top of the right end lower baffle plate and the top of the middle lower baffle plate, and the second V-shaped frames and the upper connecting rod are in spot welding, so that the upper baffle plate and the lower baffle plate form an integral structure, and the structural strength and the impact resistance of the upper baffle plate and the lower baffle plate are greatly improved.

Description

[Technical field]

[0001] The utility model relates to the field of heat exchangers, in particular to a baffle installation structure. [Background technology]

[0002] The shell and tube heat exchanger is mainly composed of shell, tube bundle, tube sheet, head and baffle. The shell is mostly circular, with parallel tube bundles or spiral tubes installed inside. Both ends of the tube bundle are fixed to the tube sheet. The two fluids that exchange heat in the shell and tube heat exchanger, one flows inside the tube, and its stroke is called the tube side; the other flows outside the tube, and its stroke is called the shell side. The wall of the tube bundle is the heat transfer surface. The welding of tubes and tube sheets in the heat exchanger directly affects the manufacture and use of the heat exchanger. The connection strength and sealing performance are directly related to the service time and whether there is leakage.

[0003] The baffles are mainly used to support the heat exchange tubes and change the flow direction of the fluid, which can make the fluid follow the prescribed path and flow through the tube bundle multiple times horizontally, increase the turbulence, and improve the convection heat transfer coefficient between the tubes. Since the baffles are always impacted by the fluid medium during operation, the structural strength requirements are relatively high.

[0004] Please refer to the existing document (patent application number 202310903799.4), which discloses a shell and tube heat exchanger structure in the prior art, wherein a group of baffles staggered in an upper and lower manner are fixed in the cylinder, and the heat exchange tubes are passed through the baffles. This baffle structure is a more commonly used baffle structure in shell and tube heat exchangers. The defect of the baffle of this structure is that the baffle on the upper side and the baffle on the lower side are not connected, so all the baffles do not form an integral structure. When impacted by the fluid medium, the impact resistance is low, which in turn affects the service life of the heat exchanger.

[0005] Therefore, it is necessary to provide a baffle installation structure that solves the above technical problems. [Utility Model Content]

[0006] In order to solve the above problems, the purpose of the utility model is to provide a baffle installation structure with high structural strength and strong impact resistance.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a baffle installation structure, comprising: a cylinder, a left tube sheet, a right tube sheet and a baffle, the baffle comprising a plurality of upper baffles abutting against the upper inner wall of the cylinder and a plurality of lower baffles abutting against the lower inner wall of the cylinder, the upper baffles and the lower baffles are arranged one by one, a first notch is provided below the upper baffle, a second notch is provided above the lower baffle, the first notch and the second notch together form an S-shaped shell-side medium flow channel in the cylinder, the upper baffle comprising a left upper baffle closest to the left tube sheet, a right upper baffle closest to the right tube sheet and an intermediate upper baffle arranged between the left upper baffle and the right upper baffle, the lower baffle comprising a left lower baffle closest to the left tube sheet, a right lower baffle closest to the right tube sheet and an intermediate lower baffle arranged between the left lower baffle and the right lower baffle, The plurality of upper baffles are connected by a plurality of upper connecting rods, the upper baffles are provided with an upper connecting rod through-holes for the upper connecting rod to pass through, the left and right ends of the upper connecting rod are both threaded heads, the right end of the upper connecting rod is screwed into the threaded hole of the right tube sheet, the left end of the upper connecting rod passes through the left upper baffle and is fixed by a nut, the plurality of lower baffles are connected by a plurality of lower connecting rods, the lower baffles are provided with lower connecting rod through-holes for the lower connecting rod to pass through, the left and right ends of the lower connecting rod are both threaded heads, the right end of the lower connecting rod is screwed into the threaded hole of the right tube sheet, the left end of the lower connecting rod passes through the left lower baffle and is fixed by a nut, the bottom of the middle upper baffle and the right upper baffle are both welded with a first V-shaped frame, the first V-shaped frame is spot welded to the lower connecting rod, the tops of the left lower baffle, the right lower baffle and the middle lower baffle are all welded with a second V-shaped frame, and the second V-shaped frame is spot welded to the upper connecting rod.

[0008] Preferably, a baffle installation structure in the utility model is further configured as follows: the first V-frame and the second V-frame have the same structure, both comprising: a first tube body, a second tube body and a third tube body, the first tube body and the second tube body are arranged at an angle of 60°, and the free ends of the first tube body and the second tube body are flattened and welded to the third tube body.

[0009] Preferably, a baffle installation structure in the utility model is further configured as follows: the plurality of upper baffles and the plurality of lower baffles are each provided with tube holes for the heat exchange tubes to pass through.

[0010] Preferably, a baffle installation structure in the utility model is further configured as follows: the number of the upper connecting rods is three, and the number of the second V-shaped frames arranged on the top of the left lower baffle, the right lower baffle and the middle lower baffle is also three.

[0011] Preferably, a baffle installation structure in the utility model is further configured as follows: the number of the lower connecting rods is three, and the number of the first V-shaped frames arranged at the bottom of the middle upper baffle and the right upper baffle is also three.

[0012] Preferably, a baffle installation structure in the utility model is further configured as follows: the upper baffle and the first V-shaped frame are both made of stainless steel.

[0013] Preferably, a baffle installation structure in the present invention is further configured as follows: the lower baffle and the second V-shaped frame are both made of stainless steel.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a second V-shaped frame spot-welded to the upper connecting rod at the top of the lower baffle plate, and provides a first V-shaped frame spot-welded to the lower connecting rod at the bottom of the upper baffle plate, so that the upper baffle plate and the lower baffle plate form an integral structure, which greatly improves the structural strength and impact resistance. In addition, the utility model designs the two ends of the connecting rod into a threaded head structure and designs the V-shaped frame and the connecting rod into a spot welding structure, which can be easily assembled and disassembled.

Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the baffle installation structure in the utility model.

[0016] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0017] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0018] Figure 4 It is a schematic diagram of the structure of the middle upper baffle.

[0019] Figure 5 It is a schematic diagram of the structure of the lower baffle at the left end.

[0020] Figures 1 to 5 Middle: 1, cylinder, 2, left tube sheet, 3, right tube sheet, 4, baffle, 40, upper baffle, 400, upper baffle at left end, 401, upper baffle at right end, 402, middle upper baffle, 403, upper connecting rod perforation, 404, bottom wall, 41, lower baffle, 410, lower baffle at left end, 411, lower baffle at right end, 412, middle lower baffle, 413, lower connecting rod perforation, 5, tube hole, 6, first notch, 7, second notch, 8, upper connecting rod, 80, first nut, 9, lower connecting rod, 90, second nut, 10, first V-shaped frame, 100, first tube body, 101, second tube body, 102, third tube body, 11, second V-shaped frame. [Specific implementation method]

[0021] The baffle installation structure of the utility model is further described in detail below through specific embodiments.

[0022] Ginseng Figures 1 to 5 As shown, a baffle installation structure includes: a cylinder 1, a left tube sheet 2, a right tube sheet 3 and a baffle 4, wherein the baffle 4 includes a plurality of upper baffles 40 abutting against the upper inner wall of the cylinder 1 and a plurality of lower baffles 41 abutting against the lower inner wall of the cylinder 1, and the plurality of upper baffles 40 and the plurality of lower baffles 41 are provided with tube holes 5 for heat exchange tubes to pass through. The upper baffles 40 and the lower baffles 41 are arranged one by one at intervals, a first notch 6 is provided below the upper baffle 40, and a second notch 7 is provided above the lower baffle 41, and the first notch 6 and the second notch 7 together form an S-shaped shell-side medium flow channel in the cylinder 1.

[0023] The upper baffle 40 includes a left upper baffle 400 closest to the left tube plate 2, a right upper baffle 401 closest to the right tube plate 3, and an intermediate upper baffle 402 arranged between the left upper baffle 400 and the right upper baffle 401. The lower baffle 41 includes a left lower baffle 410 closest to the left tube plate 2, a right lower baffle 411 closest to the right tube plate 3, and an intermediate lower baffle 412 arranged between the left lower baffle 410 and the right lower baffle 411. Several upper baffles 40 are connected by several upper connecting rods 8. The upper baffles 40 are provided with upper connecting rod through holes 403 for the upper connecting rods 8 to pass through. In this embodiment, the number of the upper connecting rods 8 is three. The left and right ends of the upper connecting rod 8 are both threaded heads. The right end of the upper connecting rod 8 is screwed into the threaded hole of the right tube sheet 3. The left end of the upper connecting rod 8 passes through the left end upper baffle 400 and is fixed by the first nut 80.

[0024] Several lower baffles 41 are connected by several lower connecting rods 9. The lower baffles 41 are provided with lower connecting rod through holes 413 for the lower connecting rods 9 to pass through. In this embodiment, the number of the lower connecting rods 9 is three. The left and right ends of the lower connecting rods 9 are both threaded heads. The right end of the lower connecting rod 9 is screwed into the threaded hole of the right tube sheet 3. The left end of the lower connecting rod 9 passes through the left lower baffle 410 and is fixed by the second nut 90. The bottoms of the middle upper baffle 402 and the right upper baffle 401 are welded with three first V-shaped frames 10. The number of the first V-shaped frames 10 corresponds to the number of the lower connecting rods 9. The first V-shaped frame 10 includes: a first tube body 100, a second tube body 101 and a third tube body 102. The first tube body 100 and the second tube body 101 are arranged at an angle of 60°. The top free ends of the first tube body 100 and the second tube body 101 are flattened and welded to the bottom wall 404 of the upper baffle 40. The bottom free ends of the first tube body 100 and the second tube body 101 are flattened and welded to the third tube body 102. The third tube body 102 is spot welded to the lower connecting rod 9. The tops of the left lower baffle 410, the right lower baffle 411 and the middle lower baffle 412 are all welded with three second V-shaped frames 11. The number of the second V-shaped frames 11 corresponds to the number of the upper connecting rods 8. The second V-shaped frame 11 is spot welded to the upper connecting rod 8. The structure of the second V-shaped frame 11 is the same as that of the first V-shaped frame 10, so it will not be described again. In this embodiment, the upper baffle plate 40, the first V-shaped frame 10, the lower baffle plate 41 and the second V-shaped frame 11 are all made of stainless steel, so they have good corrosion resistance.

[0025] In summary, the utility model provides a second V-shaped frame spot-welded to the upper connecting rod at the top of the lower baffle plate, and provides a first V-shaped frame spot-welded to the lower connecting rod at the bottom of the upper baffle plate, so that the upper baffle plate and the lower baffle plate form an integral structure, which greatly improves the structural strength and impact resistance. In addition, the utility model designs the two ends of the connecting rod as threaded head structures and designs the V-shaped frame and the connecting rod as a spot welding structure, which is convenient for assembly and disassembly.

[0026] The above-mentioned embodiments are only illustrative of the principles and effects of the invention of the utility model, as well as some embodiments of its application, and are not intended to limit the invention of the utility model. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and these all fall within the scope of protection of the invention.

Claims

1. A baffle installation structure, comprising: The cylinder, left tube sheet, right tube sheet and baffles are characterized in that: the baffles include a plurality of upper baffles abutting against the upper inner wall of the cylinder and a plurality of lower baffles abutting against the lower inner wall of the cylinder, the upper baffles and the lower baffles are arranged one by one, a first notch is provided below the upper baffle, and a second notch is provided above the lower baffle, the first notch and the second notch together form an S-shaped shell-side medium flow channel in the cylinder, the upper baffles include a left upper baffle closest to the left tube sheet, a right upper baffle closest to the right tube sheet, and an intermediate upper baffle arranged between the left upper baffle and the right upper baffle, the lower baffles include a left lower baffle closest to the left tube sheet, a right lower baffle closest to the right tube sheet, and an intermediate lower baffle arranged between the left lower baffle and the right lower baffle, and the plurality of upper baffles are connected by a plurality of upper connecting plates The left and right ends of the lower baffle plates are connected with the connecting rod, and the upper baffle plates are provided with an upper connecting rod through-hole for the upper connecting rod to pass through, and the left and right ends of the upper connecting rod are both threaded heads, and the right end of the upper connecting rod is screwed into the threaded hole of the right tube plate, and the left end of the upper connecting rod passes through the left upper baffle and is fixed by a nut. The lower baffle plates are connected by a plurality of lower connecting rods, and the lower baffle plates are provided with a lower connecting rod through-hole for the lower connecting rod to pass through, and the left and right ends of the lower connecting rod are both threaded heads, and the right end of the lower connecting rod is screwed into the threaded hole of the right tube plate, and the left end of the lower connecting rod passes through the left lower baffle and is fixed by a nut, and the bottom of the middle upper baffle plate and the right upper baffle plate are both welded with a first V-shaped frame, and the first V-shaped frame is spot welded to the lower connecting rod, and the tops of the left lower baffle plate, the right lower baffle plate and the middle lower baffle plate are all welded with a second V-shaped frame, and the second V-shaped frame is spot welded to the upper connecting rod.

2. A baffle installation structure according to claim 1, characterized in that: The first V-shaped frame has the same structure as the second V-shaped frame, and both include: a first tube body, a second tube body and a third tube body. The first tube body and the second tube body are arranged at an angle of 60 degrees, and the free ends of the first tube body and the second tube body are flattened and welded to the third tube body.

3. A baffle installation structure according to claim 1, characterized in that: The plurality of upper baffles and the plurality of lower baffles are provided with tube holes for the heat exchange tubes to pass through.

4. A baffle installation structure according to claim 1, characterized in that: The number of the upper connecting rods is three, and the number of the second V-shaped frames arranged on the top of the left lower baffle, the right lower baffle and the middle lower baffle is also three.

5. A baffle installation structure according to claim 1, characterized in that: The number of the lower connecting rods is three, and the number of the first V-shaped frames arranged at the bottom of the middle upper baffle and the right upper baffle is also three.

6. A baffle installation structure according to claim 1, characterized in that: The upper baffle plate and the first V-shaped frame are both made of stainless steel.

7. A baffle installation structure according to claim 1, characterized in that: The lower baffle plate and the second V-shaped frame are both made of stainless steel.

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