Heat exchanger tube plate structure

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger tube plate structure which comprises a tube plate body, a plurality of connecting holes are formed in the tube plate body, first sealing gaskets are fixedly installed on the outer surfaces of the connecting holes, and a clamping structure is arranged on the left side of the tube plate body. A tube bundle main body is placed in the multiple connecting holes; the tube bundle main body is inserted into the connecting holes, then the clamping plate is inserted into one end of the tube bundle main body from the left side of the tube plate main body, the conical ring is conical, so that when the clamping plate is inserted into the outer surface of the tube bundle main body, the conical ring is inserted into a gap between the connecting holes and the tube bundle main body, and then the clamping plate is knocked by an iron hammer; the conical ring can drive the sealing cushion to deform and completely enter a gap between the connecting hole and the tube bundle body, the tube bundle body and the tube plate body can be stably connected through expansion of the sealing cushion in the gap, and meanwhile stable sealing is formed through mutual extrusion of the second sealing cushion and the first sealing cushion.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a heat exchanger tube sheet structure. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid. Heat exchangers play a vital role in many industrial production processes, including chemical, petroleum, power, and food industries. In chemical production, heat exchangers are widely used as heaters, coolers, condensers, evaporators, and reboilers.

[0003] Existing heat exchanger tube sheets have certain shortcomings in practical use: during assembly, one end of the tube bundle needs to be passed through the tube sheet and then welded at the connection point to ensure the reliability of the connection and effectively prevent problems such as material leakage and air leakage. However, due to the large number of pipes that need to be welded, the assembly process is labor-intensive, involving a large workload and cumbersome operation. Based on the shortcomings of existing technology, this utility model designs a heat exchanger tube sheet structure. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a heat exchanger tube sheet structure that has the advantage of replacing traditional welding work with snap-fit ​​connections, reducing workload without affecting the sealing.

[0005] This utility model provides the following technical solution: a heat exchanger tube sheet structure, including a tube sheet body, the tube sheet body having multiple connecting holes inside, a first sealing gasket fixedly installed on the outer surface of the multiple connecting holes, a locking structure provided on the left side of the tube sheet body, and a tube bundle body placed inside the multiple connecting holes; the locking structure includes a locking plate, the locking plate having multiple positioning holes inside, the multiple positioning holes corresponding to the positions of the connecting holes, a second sealing gasket fixedly installed on the other side of the multiple positioning holes, a conical ring installed inside the multiple second sealing gaskets, and a sealing soft gasket fixedly installed on the outer surface of the conical ring.

[0006] As a preferred embodiment of this utility model, four protruding blocks are fixedly installed on the outer surface of the locking plate, and through grooves are opened inside the four protruding blocks.

[0007] As a preferred technical solution of this utility model, a fixing structure is fixedly installed on one side of the outer surface of the tube sheet body, and the fixing structure includes four sets of baffles.

[0008] As a preferred embodiment of this utility model, the four sets of baffles are arranged on the left side of the tube sheet body, and the positions of the four sets of baffles correspond to those of the protruding blocks.

[0009] As a preferred technical solution of this utility model, the four sets of baffles are provided with fixing holes inside, and the size of the four fixing holes is the same as the size of the through groove.

[0010] As a preferred technical solution of this utility model, a threaded pipe is fixedly installed on one side of the outer surface of the four sets of baffles.

[0011] As a preferred embodiment of this utility model, the internal threads of the four sets of threaded tubes are fitted with fastening bolts.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This heat exchanger tube sheet structure, through the tube sheet body and the snap-fit ​​structure, when assembling the tube bundle body, the tube bundle body is inserted into the connection hole. Since the diameter of the connection hole is slightly larger than the diameter of a single tube in the tube bundle body, there is a certain gap when the tube bundle body is inserted into the connection hole. Then, the snap-fit ​​plate is inserted into one end of the tube bundle body from the left side of the tube sheet body. Since the conical ring is conical, when the snap-fit ​​plate is inserted into the outer surface of the tube bundle body, the conical ring is inserted into the gap between the connection hole and the tube bundle body. Then, the snap-fit ​​plate is struck with a hammer, which causes the conical ring to deform and completely enter the gap between the connection hole and the tube bundle body. The expansion of the sealing gasket in the gap allows the tube bundle body to be stably connected to the tube sheet body. At the same time, the second sealing gasket and the first sealing gasket are squeezed against each other to form a stable seal. Thus, the snap-fit ​​connection replaces the traditional welding work and reduces the workload without affecting the seal.

[0014] 2. This heat exchanger tube sheet structure, through a snap-fit ​​structure and a fixing structure, after the snap-fit ​​plate is snapped on the left side of the tube sheet body, the four protruding blocks are snapped between the four sets of baffles, and the through slots are aligned with the fixing holes. At this time, by rotating the fastening bolts on both sides respectively, they can be screwed into the protruding blocks through the baffles, thereby fixing the snap-fit ​​plate and improving the stability of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the fixing structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the positioning hole structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the protruding block structure of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0020] In the figure: 1. Tube sheet body; 101. Connecting hole; 102. First sealing gasket; 2. Tube bundle body; 3. Engaging structure; 31. Engaging plate; 32. Protruding block; 33. Through groove; 34. Positioning hole; 35. Second sealing gasket; 36. Conical ring; 37. Sealing soft gasket; 4. Fixing structure; 41. Baffle; 42. Fixing hole; 43. Threaded tube; 44. Fastening bolt. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 A heat exchanger tube sheet structure includes a tube sheet body 1, with multiple connection holes 101 inside the tube sheet body 1. A first sealing gasket 102 is fixedly installed on the outer surface of the multiple connection holes 101. A locking structure 3 is provided on the left side of the tube sheet body 1. A tube bundle body 2 is placed inside the multiple connection holes 101. The locking structure 3 includes a locking plate 31, with multiple positioning holes 34 inside the locking plate 31. The multiple positioning holes 34 correspond to the positions of the connection holes 101. A second sealing gasket 35 is fixedly installed on the other side of the multiple positioning holes 34. A conical ring 36 is installed inside the multiple second sealing gaskets 35. A sealing soft gasket 37 is fixedly installed on the outer surface of the conical ring 36.

[0023] Please see Figure 2-3 Four protruding blocks 32 are fixedly installed on the outer surface of the locking plate 31, and through grooves 33 are formed inside the four protruding blocks 32. A fixing structure 4 is fixedly installed on one side of the outer surface of the tube sheet body 1. The fixing structure 4 includes four sets of baffles 41. The four sets of baffles 41 are located on the left side of the tube sheet body 1, and the positions of the four sets of baffles 41 correspond to the positions of the protruding blocks 32. Fixing holes 42 are formed inside the four sets of baffles 41, and the size of the four fixing holes 42 is the same as the size of the through grooves 33. Threaded pipes 43 are fixedly installed on one side of the outer surface of the four sets of baffles 41. Fastening bolts 44 are installed in the internal threads of the four sets of threaded pipes 43.

[0024] After the locking plate 31 is locked onto the left side of the tube sheet body 1, the four protruding blocks 32 are locked between the four sets of baffles 41, and the through groove 33 is aligned with the fixing hole 42. At this time, by rotating the fastening bolts 44 on both sides respectively, they can be screwed into the protruding block 32 through the baffle 41, thereby fixing the locking plate 31 and improving the stability of the device.

[0025] Working principle: When using a heat exchanger tube sheet structure, firstly, each individual tube in the tube bundle body 2 is inserted into the connection hole 101. Since the diameter of the connection hole 101 is slightly larger than the diameter of the individual tubes in the tube bundle body 2, there is a certain gap when the tube bundle body 2 is inserted into the connection hole 101. Then, the retaining plate 31 is inserted into one end of the tube bundle body 2 from the left side of the tube bundle body 1. Since the conical ring 36 is conical, when the retaining plate 31 is inserted into the outer surface of the tube bundle body 2, the conical ring 36 is inserted into the gap between the connection hole 101 and the tube bundle body 2. Then, the retaining plate 31 is struck with a hammer, which causes the conical ring 36 to move the sealing gasket. The 37 deforms and completely enters the gap between the connecting hole 101 and the tube bundle body 2. The expansion of the sealing gasket 37 within it allows the tube bundle body 2 to be stably connected to the tube sheet body 1. At the same time, the second sealing gasket 35 and the first sealing gasket 102 squeeze each other to form a stable seal. Then, after the locking plate 31 is locked on the left side of the tube sheet body 1, the four protruding blocks 32 are locked between the four sets of baffles 41, and the through groove 33 is aligned with the fixing hole 42. At this time, by rotating the fastening bolts 44 on both sides respectively, they can be screwed through the baffles 41 and into the protruding block 32, thereby fixing the locking plate 31 and improving the stability of the device.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger tube sheet structure comprising a tube sheet body (1), characterized in that: The inside of the tube plate body (1) is provided with a plurality of connecting holes (101), a plurality of first sealing pads (102) are fixedly installed on the outer surface of the connecting holes (101), the left side of the tube plate body (1) is provided with a clamping structure (3), and a tube bundle body (2) is placed in the plurality of connecting holes (101); The clamping structure (3) comprises a clamping plate (31), a plurality of positioning holes (34) are formed in the inside of the clamping plate (31), the plurality of positioning holes (34) correspond in position to the connecting holes (101), a plurality of second sealing pads (35) are fixedly installed on the other side of the positioning holes (34), a tapered ring (36) is installed in the plurality of second sealing pads (35), and a sealing soft pad (37) is fixedly installed on the outer surface of the tapered ring (36).

2. The heat exchanger tube sheet structure as claimed in claim 1, wherein: The outer surface of the clamping plate (31) is fixedly installed with four protruding blocks (32), and a through groove (33) is formed in the inside of the four protruding blocks (32).

3. The heat exchanger tube sheet structure as claimed in claim 1, wherein: The outer surface of the clamping plate (31) is fixedly installed with four protruding blocks (32), and a through groove (33) is formed in the inside of the four protruding blocks (32).

4. The heat exchanger tube sheet structure as claimed in claim 3, wherein: The outer surface of the clamping plate (31) is fixedly installed with four protruding blocks (32), and a through groove (33) is formed in the inside of the four protruding blocks (32).

5. The heat exchanger tube sheet structure as claimed in claim 4, wherein: The outer surface of the clamping plate (31) is fixedly installed with four protruding blocks (32), and a through groove (33) is formed in the inside of the four protruding blocks (32).

6. The heat exchanger tube sheet structure as claimed in claim 3, wherein: The outer surface of the clamping plate (31) is fixedly installed with four protruding blocks (32), and a through groove (33) is formed in the inside of the four protruding blocks (32).

7. The heat exchanger tube sheet structure as claimed in claim 6, wherein: The outer surface of the clamping plate (31) is fixedly installed with four protruding blocks (32), and a through groove (33) is formed in the inside of the four protruding blocks (32). The outer surface of the clamping plate (31) is fixedly installed with four protruding blocks (32), and a through groove (33) is formed in the inside of the four protruding blocks (32).

Images