A tube bundle assembly and a shell-and-tube heat exchanger

Abstract

This invention provides a tube bundle assembly and a shell-and-tube heat exchanger, belonging to the technical field of heat exchangers. It includes: a support plate with multiple support plate tube holes; a baffle plate with multiple baffle plate tube holes; a partition plate having a first plate surface and a second plate surface; the support plate is disposed on the side of the first plate surface, and the baffle plate is disposed below the second plate surface; wherein one of the support plate and the baffle plate is fixedly connected to the partition plate, and the other is detachably connected to the partition plate; the detachably connected support plate and baffle plate has a first protrusion, the partition plate has a first positioning hole, the first protrusion has a first tie rod hole, and the fixedly connected support plate and baffle plate has a second tie rod hole; a first connecting tie rod passes through the first tie rod hole and the second tie rod hole, connecting the support plate and the baffle plate into a whole. This allows the support plate and the baffle plate to use the same positioning reference when inserting tubes, improving the tube insertion efficiency of the heat exchanger.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, and more particularly to a tube bundle assembly and a shell-and-tube heat exchanger. Background Technology

[0002] The internal structure of a shell-and-tube heat exchanger generally consists of multiple components. The support plate and baffle plate are important components of the heat exchanger. The baffle plate allows the fluid to extend its flow time in the shell side as much as possible, thereby increasing the heat exchange time and improving the heat exchange efficiency. The function of the support plate is to support the tube bundle and improve its stability.

[0003] Generally, the two components are connected to the shell as independent parts. However, this connection method will generate multiple different positioning references, which will greatly reduce the concentricity of the two components. The concentricity of the two components will directly affect the subsequent tube insertion process. When the concentricity is poor, the heat exchange tube is difficult to insert, which will reduce production efficiency and pose a greater risk to product quality. Summary of the Invention

[0004] To overcome the problems existing in related technologies, embodiments of the present invention propose a tube bundle assembly and a shell-and-tube heat exchanger.

[0005] A first aspect of this invention provides a tube bundle assembly for a shell-and-tube heat exchanger, the tube bundle assembly comprising:

[0006] Tube bundle, including first tube bundle and second tube bundle;

[0007] The support plate has multiple support plate holes for inserting the first tube bundle;

[0008] The baffle plate has multiple baffle plate holes for inserting the second tube bundle;

[0009] A partition has a first plate surface and a second plate surface that are formed opposite to each other. A support plate is disposed above the first plate surface and a baffle is disposed below the second plate surface. One of the support plate and the baffle is fixedly connected to the partition and the other is detachably connected to the partition.

[0010] The support plate and the baffle plate that are detachably connected to the partition plate have a first protrusion at a position close to the partition plate. The partition plate has a first positioning hole at a position corresponding to the first protrusion, through which the first protrusion can pass. The first protrusion has a first tie rod hole at a part that can pass through the first positioning hole. The support plate and the baffle plate that are fixedly connected to the partition plate have a second tie rod hole at a position axially corresponding to the first tie rod hole.

[0011] The tube bundle assembly also includes a first connecting rod, which can be detachably inserted through a first rod hole and a second rod hole to connect the support plate and the baffle plate into a whole;

[0012] Furthermore, the axial direction of the first connecting rod is parallel to the axial direction of the first tube bundle and the axial direction of the second tube bundle.

[0013] In the above technical solution, the first positioning hole includes a rectangular hole provided on the partition plate, and the first protrusion includes a rectangular platform and an arc-shaped platform formed on the rectangular platform.

[0014] The first protrusion is designed such that when the first protrusion mates with the first positioning hole, the rectangular platform of the first protrusion mates with the rectangular hole, and the arc-shaped platform passes through the rectangular hole to form the first pull rod hole.

[0015] In the above technical solution, multiple first positioning holes are provided, and the multiple first positioning holes are evenly distributed in the width direction of the partition.

[0016] Each of the first positioning holes has a corresponding first protrusion inserted into it.

[0017] In the above technical solution, the partition plate is also provided with a plurality of second positioning holes, and the support plate and the baffle plate that are fixedly connected to the partition plate are provided with a plurality of second protrusions, and the plurality of second protrusions are embedded in the plurality of second positioning holes one by one and fixed in the second positioning holes.

[0018] The second positioning hole is a rectangular hole, and the second protrusion is a rectangular boss.

[0019] In the above technical solution, the support plate has a support plate mating surface that mates with the partition plate, and the baffle plate has a baffle plate mating surface that mates with the partition plate.

[0020] The support plate is set perpendicular to the first plate surface of the partition via its mating surface, and the baffle plate is set perpendicular to the second plate surface of the partition via its mating surface. The support plate and the baffle plate are spaced apart along the length of the partition.

[0021] In the above technical solution, multiple support plates are provided, and the multiple support plates are evenly distributed along the length direction of the partition.

[0022] Multiple baffles are provided, and the multiple baffles are evenly distributed along the length of the baffle.

[0023] Multiple support plates and multiple baffles are connected in series along the length of the partition via a first connecting rod.

[0024] In the above technical solution, the tube bundle assembly also includes multiple second connecting rods and multiple third connecting rods;

[0025] Multiple second connecting rods are connected in series between multiple support plates, and multiple third connecting rods are connected in series between multiple baffles.

[0026] A second aspect of the present invention provides a shell-and-tube heat exchanger, including a shell and the aforementioned tube bundle assembly, wherein the tube bundle assembly is assembled inside the shell.

[0027] In the above technical solution, the shell-and-tube heat exchanger also includes:

[0028] The tube sheet is provided in two, which are respectively disposed on both sides of the length direction of the shell. The tube sheet includes a first tube-through area and a second tube-through area.

[0029] The first tube-passing area is provided with multiple first tube-passing holes for passing through the first tube bundle;

[0030] The second pipe-passing area is provided with multiple second pipe-passing holes for passing through the second pipe bundle.

[0031] In the above technical solution, the shell is a cylindrical shell with openings on both sides along the length direction. The tube bundle assembly is assembled inside the shell through the openings. The partition in the tube bundle assembly divides the inside of the shell into a first cavity and a second cavity that allow fluid to flow and are distributed vertically. The support plate is located in the first cavity and the baffle is located in the second cavity.

[0032] Two tube sheets are symmetrically arranged at the opening positions on both sides of the shell. The multiple first through holes in the first through area of ​​the tube sheet correspond one-to-one with the multiple support plate tube holes on the support plate in the first cavity, and the multiple second through holes in the second through area of ​​the tube sheet correspond one-to-one with the multiple baffle plate tube holes on the baffle plate in the second cavity.

[0033] The shell is equipped with a refrigerant inlet and a refrigerant outlet. The refrigerant inlet is connected to the first cavity, and the refrigerant outlet is connected to the second cavity.

[0034] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0035] In this embodiment of the invention, by connecting the support plate, baffle plate and partition plate into a whole, the support plate and baffle plate adopt the same positioning reference when inserting the tube, thereby improving the concentricity of the assembly of the support plate and baffle plate, eliminating the quality abnormalities caused by insufficient concentricity due to the separate assembly of the two plates, and ensuring the stability of the heat exchanger. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0037] Figure 1 This is an exploded structural diagram of an embodiment of the tube bundle assembly of the present invention;

[0038] Figure 2 for Figure 1An enlarged structural diagram at point A in the embodiment;

[0039] Figure 3 This is a schematic diagram of the assembled structure of the tube bundle assembly according to an embodiment of the present invention;

[0040] Figure 4 This is a three-dimensional structural diagram of a tube bundle assembly embodiment of the present invention, in which multiple support plates are connected together by a second connecting rod.

[0041] Figure 5 This is a schematic diagram of the front view of a single support plate in an embodiment of the tube bundle assembly of the present invention;

[0042] Figure 6 This is a three-dimensional structural diagram of a tube bundle assembly embodiment of the present invention, in which multiple baffles are connected together in series by a third connecting rod and fixed on a partition.

[0043] Figure 7 This is a schematic front view of a single baffle in an embodiment of the tube bundle assembly of the present invention;

[0044] Figure 8 This is a top view of the partition structure in an embodiment of the tube bundle assembly of the present invention;

[0045] Figure 9 This is a perspective structural diagram of the shell-and-tube heat exchanger of the present invention. The tube bundle assembly in the figure is assembled in the shell of the shell-and-tube heat exchanger and the tube sheet is hidden.

[0046] Figure 10 This is a three-dimensional structural diagram of the tube sheet in the shell-and-tube heat exchanger of the present invention;

[0047] Figure 11 This is a perspective structural schematic diagram of the shell-and-tube heat exchanger of the present invention. The tube bundle assembly is assembled in the shell of the shell-and-tube heat exchanger and the tube sheet is shown.

[0048] Wherein: 1-Support plate; 11-Support plate tube hole; 12-First protrusion; 121-Rectangular platform; 122-Arc-shaped platform; 123-First tie rod hole; 2-Baffle plate; 21-Baffle plate tube hole; 22-Second tie rod hole; 23-Second protrusion; 3-Baffle plate; 31-First positioning hole; 32-Second positioning hole; 4-Tube plate; 41-First through-pipe area; 411-First through-pipe hole; 42-Second through-pipe area; 421-Second through-pipe hole; 5-First connecting tie rod; 6-Second connecting tie rod; 7-Third connecting tie rod; 8-Shell; 81-First cavity; 82-Second cavity; 83-Refrigerant inlet; 84-Refrigerant outlet. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0050] Currently, in existing shell-and-tube heat exchangers, the support plate and baffles, which are important heat exchange components, are generally installed as independent parts with the shell of the heat exchanger. However, this connection method generates multiple different positioning references. When inserting the heat exchange tube bundle into the support plate and baffles through the tube sheet, it affects the tube insertion process, making it difficult to insert the heat exchange tubes, thus reducing production efficiency and creating significant hidden dangers. In this embodiment of the invention, the support plate, baffles, and partitions are connected into a whole. This allows the support plate and baffles to use the same positioning reference when inserting tubes, improving the concentricity of the assembly of the support plate and baffles, eliminating quality abnormalities caused by insufficient concentricity when assembling the two plates separately, and ensuring the stability of the heat exchanger.

[0051] The following is in conjunction with the appendix Figure 1-10 The technical solution of this embodiment is described in detail. Unless otherwise specified, the following implementation methods and embodiments can be combined with each other.

[0052] Example

[0053] like Figures 1-8 As shown, the first aspect of this embodiment provides a tube bundle assembly for a shell-and-tube heat exchanger, wherein the tube bundle assembly includes:

[0054] The tube bundle includes a first tube bundle {not shown in the figure} and a second tube bundle {not shown in the figure};

[0055] Support plate 1, the support plate 1 is provided with a plurality of support plate tube holes 11 for inserting the first tube bundle;

[0056] Baffle 2, which is provided with multiple baffle tube holes 21 for inserting the second tube bundle;

[0057] Partition 3, partition 3 has a first plate surface and a second plate surface that are formed opposite to each other, and support plate 1 is disposed above the first plate surface {to Figure 1 Taking the direction in the middle as an example, the baffle 2 is set below the second plate surface. Figure 1 Taking the direction in the middle as an example, one of the support plate 1 and the baffle plate 2 is fixedly connected to the partition plate 3, and the other is detachably connected to the partition plate 3;

[0058] One of the support plate 1 and the baffle plate 2 that is detachably connected to the partition plate 3 has a first protrusion 12 near the partition plate 3. The partition plate 3 has a first positioning hole 31 at the position corresponding to the first protrusion 12, through which the first protrusion 12 can pass. The first protrusion 12 has a first tie rod hole 123 in the part that can pass through the first positioning hole 31. The one of the support plate 1 and the baffle plate 2 that is fixedly connected to the partition plate 3 has a second tie rod hole 22 at the position axially corresponding to the first tie rod hole 123.

[0059] The tube bundle assembly also includes a first connecting rod 5, which can be detachably inserted into the first rod hole 123 and the second rod hole 22 to connect the support plate 1 and the baffle plate 2 into a whole;

[0060] Furthermore, the axial direction of the first connecting rod 5 is parallel to the axial direction of the first tube bundle and the axial direction of the second tube bundle.

[0061] It should be noted that the first tube bundle and the second tube bundle mentioned in the embodiments of the present invention each have multiple tube bundle units. When inserting the tubes, a tube bundle unit is inserted into each tube hole {support plate tube hole and baffle plate tube hole}. Since this is the prior art, the first tube bundle and the second tube bundle will not be described in detail in this embodiment.

[0062] In this embodiment of the invention, the support plate 1, the baffle plate 2, and the partition plate 3 are connected into a whole by the first connecting rod 5. This ensures that the support plate 1 and the baffle plate 2 use the same positioning reference when inserting the tubes, improving the concentricity of the assembly of the support plate 1 and the baffle plate 2. This eliminates quality abnormalities caused by insufficient concentricity due to the separate assembly of the two plates, ensuring the stability of the heat exchanger. Specifically;

[0063] When heat exchange tubes are installed in a shell-and-tube heat exchanger, the first tube-through hole 411 in the first tube-through region 41 on the tube sheet 4 can be aligned with the support plate tube hole 11 on the support plate 1. Since the baffle plate 2, support plate 1, and partition plate 3 are a single unit, there is no need to re-establish the tube-through reference for the baffle plate 2. The baffle plate tube hole 21 on the baffle plate 2 will automatically align with the second tube-through hole 421 in the second tube-through region 42 on the tube sheet 4. Alternatively;

[0064] When heat exchange tubes are installed in the shell-and-tube heat exchanger, the second tube hole 421 of the second tube-through area 41 on the tube sheet 4 can be aligned with the baffle tube hole 21 on the baffle plate 2. Since the baffle plate 2, the support plate 1 and the partition plate 3 are a whole, there is no need to redefine the tube-through reference of the support plate 1. The support plate tube hole 11 on the support plate 1 will automatically correspond to the first tube hole 411 on the first tube-through area 41 on the tube sheet 4.

[0065] When installing heat exchange tubes in a shell-and-tube heat exchanger, only one reference point needs to be established. The heat exchange tube bundle can then be inserted through the tube holes on the tube sheet 4 into the corresponding support plate tube holes 11 or baffle plate tube holes 21 without the need for separate positioning of the support plate 1 and baffle plate 2. This improves the tube insertion efficiency, avoids abnormalities in the heat exchanger after tube insertion, and ensures the stability of the heat exchanger.

[0066] It should be noted that in this embodiment of the invention, by configuring one of the support plate 1 and the baffle plate 2 to be fixedly connected to the partition plate 3 (instead of both being detachable), a large amount of swaying is avoided after installation of the plates (support plate 1 or baffle plate 2), thereby preventing excessive noise from the shell-and-tube heat exchanger during operation. If both the support plate 1 and the baffle plate 2 are detachably connected to the partition plate 3, a large gap will be created between the installed support plate 1 and the baffle plate 2 and the partition plate 3, resulting in significant swaying and consequently, excessive noise from the shell-and-tube heat exchanger during operation.

[0067] Specifically, such as Figure 1 As shown, in this embodiment, the support plate 1 and the partition plate 3 are detachably connected, and the baffle plate 2 and the partition plate 3 are fixedly connected. Preferably, the baffle plate 2 is welded to the partition plate 3.

[0068] In this embodiment of the invention, the support plate 1 and the baffle plate 2 are connected together by the first connecting rod 5, which allows the support plate 1 and the baffle plate 2 to use the same positioning reference when inserting the heat exchange tubes. This eliminates the problem of insufficient concentricity caused by the separate assembly of the two plates, ensuring the concentricity of the assembly of the two, making the subsequent tube insertion process easier, greatly improving production efficiency, and also avoiding the quality hazard of copper tube scratches caused by insufficient concentricity, thus ensuring the stability of the heat exchanger.

[0069] Specifically, such as Figure 8 As shown, the first positioning hole 31 mentioned above includes a rectangular hole provided on the partition plate 3, and the first protrusion 12 includes a rectangular platform 121 and an arcuate platform 122 formed on the rectangular platform 121.

[0070] The first protrusion 12 is designed such that when the first protrusion 12 engages with the first positioning hole 31, the rectangular platform 121 of the first protrusion 12 engages with the rectangular hole, and the arc-shaped platform 122 passes through the rectangular hole to form the first pull rod hole 123.

[0071] In this embodiment of the invention, by designing the first positioning hole 31 and the first protrusion 12 as rectangular shapes, the positioning effect of the plates {support plate 1 and baffle plate 2} can be improved.

[0072] Furthermore, such as Figure 8As shown, the first positioning hole 31 is provided in multiple ways, and the multiple first positioning holes 31 are evenly distributed in the width direction of the partition plate 3.

[0073] Each of the first positioning holes 31 has a corresponding first protrusion 12 inserted into it.

[0074] In this embodiment of the invention, by providing multiple first positioning holes 31 in the width direction of the partition 3, the positioning effect of the plate can be further improved.

[0075] In any of the above embodiments, the partition 3 is further provided with a plurality of second positioning holes 32, and the support plate 1 and the baffle plate 2 that are fixedly connected to the partition 3 are provided with a plurality of second protrusions 23, and the plurality of second protrusions 23 are embedded in the plurality of second positioning holes 32 one by one and fixed in the second positioning holes 32.

[0076] The second positioning hole 32 is a rectangular hole, and the second protrusion 23 is a rectangular boss.

[0077] Specifically, such as Figure 1 , Figure 3 , Figure 6 and Figure 8 As shown, the baffle plate 2 is fixedly connected to the partition plate 3. The baffle plate 2 has a baffle plate mating surface that cooperates with the partition plate 3. At this time, a plurality of second protrusions 23 are protruding from the baffle plate mating surface. The plurality of second protrusions 23 on the baffle plate 2 are embedded in a plurality of second positioning holes 32 and fixed in the second positioning holes 32. Preferably, the plurality of second protrusions 23 on the baffle plate 2 are welded in the plurality of second positioning holes 32 on the partition plate 3. The second positioning holes 32 are rectangular holes and the second protrusions 23 are rectangular bosses.

[0078] In this embodiment of the invention, by setting both the second positioning hole 32 and the second protrusion 23 as rectangles, the baffle plate 2 can be positioned before welding, thereby improving the welding effect.

[0079] In any of the above embodiments, such as Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, the support plate 1 has a support plate mating surface that mates with the partition plate 3, and the baffle plate 2 has a baffle plate mating surface that mates with the partition plate 3.

[0080] The support plate 1 is set perpendicular to the first plate surface of the partition plate 3 through the support plate mating surface, and the baffle plate 2 is set perpendicular to the second plate surface of the partition plate 3 through the baffle plate mating surface. The support plate 1 and the baffle plate 2 are set at a distance from each other in the length direction of the partition plate 3.

[0081] In any of the above embodiments, such as Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, there are multiple support plates 1, and the multiple support plates 1 are evenly distributed along the length of the partition 3;

[0082] Multiple baffles 2 are provided, and the multiple baffles 2 are evenly distributed along the length of the partition 3;

[0083] Multiple support plates 1 and multiple baffle plates 2 are connected in series along the length of the partition plate 3 via a first connecting rod 5.

[0084] In this embodiment of the invention, the first connecting rod 5 is used to connect the support plate 1 and the baffle plate 2 into a whole, and also to connect multiple support plates 1 and multiple baffle plates 2 in series, thereby fixing the multiple support plates 1 and multiple baffle plates 2 in place. {Since shell and tube heat exchangers are generally very large, the baffle plates 2 and support plates 1 are prone to swaying under the impact of water flow or air flow, which can easily cause stress between the plates and tubes}.

[0085] In other words, the first connecting rod 5 in this embodiment of the invention can reinforce and position multiple support plates 1 and multiple baffles 2 while forming multiple support plates 1 and multiple baffles 2 into a whole, thereby improving the tube insertion efficiency of the shell and tube heat exchanger while ensuring the stability of the support plates 1 and baffles 2.

[0086] like Figure 3 and Figure 4 As shown, in order to further improve the fixing and positioning effect of multiple support plates 1 and multiple baffles 2, the tube bundle assembly in this embodiment of the invention also includes multiple second connecting rods 6 and multiple third connecting rods 7;

[0087] Multiple second connecting rods 6 are connected in series between multiple support plates 1, and multiple third connecting rods 7 are connected in series between multiple baffles 2.

[0088] The second aspect of this embodiment also provides a method such as Figures 9-11 The shell-and-tube heat exchanger shown includes a shell 8 and the aforementioned tube bundle assembly, wherein the tube bundle assembly is assembled inside the shell 8.

[0089] Specifically, shell-and-tube heat exchangers also include:

[0090] like Figure 10 The tube sheet 4 shown is provided in two, which are respectively disposed on both sides of the length direction of the housing 8. The tube sheet 4 includes a first tube-through area 41 and a second tube-through area 42.

[0091] The first tube-passing area 41 is provided with a plurality of first tube-passing holes 411 for passing through the first tube bundle;

[0092] The second pipe-through area 42 is provided with a plurality of second pipe-through holes 421 for inserting the second pipe bundle.

[0093] More specifically, the shell 8 is a cylindrical shell with openings on both sides along its length. The tube bundle assembly is assembled inside the shell 8 through the openings. The partition 3 in the tube bundle assembly divides the interior of the shell 8 into a first cavity 81 and a second cavity 82 for fluid flow. The support plate 1 is located in the first cavity 81 and the baffle plate 2 is located in the second cavity 82.

[0094] Two tube sheets 4 are symmetrically arranged at the opening positions on both sides of the housing 8. The multiple first through holes 411 in the first through area 41 of the tube sheet 4 correspond one-to-one with the multiple support plate tube holes 11 on the support plate 1 in the first cavity 81. The multiple second through holes 421 in the second through area 42 of the tube sheet 4 correspond one-to-one with the multiple baffle plate tube holes 21 on the baffle plate 2 in the second cavity 82.

[0095] The housing 8 is provided with a refrigerant inlet 83 and a refrigerant outlet 84. The refrigerant inlet 83 is connected to the first cavity 81, and the refrigerant outlet 84 is connected to the second cavity 82.

[0096] The following is combined with Figures 9-11 The working principle of the shell-and-tube heat exchanger in the embodiments of the present invention will be explained as follows: Figure 9 As shown, gaseous refrigerant enters the first cavity 81 from the refrigerant inlet 83 of the shell 8. Since the refrigerant is gaseous, it can be fully distributed on the surface of the heat exchange tubes (not shown in the figure, but containing cooler water) on the support plate 1 within the first cavity 81. After heat exchange between the gaseous refrigerant and the cooler water, the gaseous refrigerant becomes liquid. Since the liquid cannot be evenly distributed like the gas, the formed liquid water enters the lower second cavity 82 through the flow channel between the first cavity 81 and the second cavity 82. Since the liquid refrigerant cannot be evenly distributed within the second cavity 82, the baffle 2 within the second cavity 82 increases the contact opportunity between the liquid refrigerant and the heat exchange tubes within the second cavity 82. After the liquid refrigerant has fully exchanged heat with the heat exchange tubes under the action of the baffle 2, it is finally discharged from the refrigerant outlet 84 at the bottom of the shell 8.

[0097] Example 2

[0098] The difference between this embodiment and embodiment 1 is that in this embodiment, the support plate and the partition are fixedly connected, and the baffle plate and the partition are detachably connected. Specifically, the support plate is welded to the partition.

[0099] When the support plate is fixedly connected to the connecting plate and the baffle plate is detachably connected to the partition plate, the baffle plate has a partition plate mating surface that mates with the partition plate. A first protrusion is provided on the partition plate mating surface. A first positioning hole is provided on the partition plate. The first protrusion on the baffle plate is inserted into the first positioning hole and is at least partially exposed on the first plate surface side of the partition plate. A first pull rod hole is provided on the first protrusion exposed on the first plate surface side.

[0100] A second tie rod hole is provided on the support plate located on the side of the first plate, and the first tie rod hole and the second tie rod hole correspond to each other in the length direction of the partition plate;

[0101] The connecting structure includes a first connecting rod, which passes through a first rod hole and a second rod hole to fix the baffle plate to the partition and connect it to the support plate through the first connecting rod.

[0102] Although the connection method between the support plate 1 and the baffle plate 2 and the partition plate 3 is different from that in Embodiment 1, both can eliminate the problem of insufficient concentricity caused by the separate assembly of the two plates, and improve the efficiency and effect of pipe threading.

[0103] Specifically, when the support plate 1 and the partition plate 3 are fixedly connected, and the baffle plate 2 and the partition plate 3 are detachably connected, the partition plate is also provided with multiple second positioning holes. The support plate has a support plate mating surface that cooperates with the partition plate. Multiple second protrusions are protruding from the support plate mating surface. The multiple second protrusions on the support plate are embedded in the second positioning holes one by one and fixed in the second positioning holes.

[0104] The second positioning hole is a rectangular hole, and the second protrusion is a rectangular boss.

[0105] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0106] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A tube bundle assembly for a shell-and-tube heat exchanger, characterized in that, The tube bundle assembly includes: Tube bundle, including first tube bundle and second tube bundle; Support plate (1), the support plate (1) is provided with a plurality of support plate tube holes (11) for inserting the first tube bundle; The baffle plate (2) is provided with a plurality of baffle plate tube holes (21) for passing through the second tube bundle; A partition (3) having a first plate surface and a second plate surface that are formed opposite to each other, a support plate (1) being disposed above the first plate surface, and a baffle plate (2) being disposed below the second plate surface, wherein one of the support plate (1) and the baffle plate (2) is fixedly connected to the partition (3) and the other is detachably connected to the partition (3); One of the support plate (1) and the baffle plate (2) that is detachably connected to the partition plate (3) has a first protrusion (12) near the partition plate (3). The partition plate (3) has a first positioning hole (31) at a position corresponding to the first protrusion (12) through which the first protrusion (12) can pass. The first protrusion (12) has a first pull rod hole (123) in the part that can pass through the first positioning hole (31). The one of the support plate (1) and the baffle plate (2) that is fixedly connected to the partition plate (3) has a second pull rod hole (22) at a position axially corresponding to the first pull rod hole (123). The tube bundle assembly further includes a first connecting rod (5), which can be detachably inserted into the first rod hole (123) and the second rod hole (22) to connect the support plate (1) and the baffle plate (2) into a whole, and the axial direction of the first connecting rod (5) is parallel to the axial direction of the first tube bundle and the axial direction of the second tube bundle.

2. The tube bundle assembly according to claim 1, characterized in that, The first positioning hole (31) includes a rectangular hole provided on the partition plate (3), and the first protrusion (12) includes a rectangular platform (121) and an arcuate platform (122) formed on the rectangular platform (121); The first protrusion (12) is designed such that when the first protrusion (12) engages with the first positioning hole (31), the rectangular platform (121) of the first protrusion (12) engages with the rectangular hole, and the arc-shaped platform (122) passes through the rectangular hole to form the first pull rod hole (123).

3. The tube bundle assembly according to claim 1, characterized in that, The first positioning hole (31) is provided in multiple ways, and the multiple first positioning holes (31) are evenly distributed in the width direction of the partition (3); Each of the first positioning holes (31) has a corresponding first protrusion (12) inserted into it.

4. The tube bundle assembly according to claim 1, characterized in that, The partition (3) is also provided with a plurality of second positioning holes (32). The support plate (1) and the baffle plate (2) that are fixedly connected to the partition (3) are provided with a plurality of second protrusions (23). The plurality of second protrusions (23) are embedded in the plurality of second positioning holes (32) and fixed in the second positioning holes (32) respectively. The second positioning hole (32) is a rectangular hole, and the second protrusion (23) is a rectangular boss.

5. The tube bundle assembly according to claim 1, characterized in that, The support plate (1) has a support plate mating surface that mates with the partition plate (3), and the baffle plate (2) has a baffle plate mating surface that mates with the partition plate (3); The support plate (1) is arranged perpendicular to the first plate surface of the partition plate (3) through the mating surface of the support plate, and the baffle plate (2) is arranged perpendicular to the second plate surface of the partition plate (3) through the mating surface of the baffle plate, and the support plate (1) and the baffle plate (2) are spaced apart in the length direction of the partition plate (3).

6. The tube bundle assembly according to claim 1, characterized in that, The support plate (1) is provided in multiple ways, and the multiple support plates (1) are evenly distributed in the length direction of the partition (3); The baffle (2) is provided in multiple ways, and the multiple baffles (2) are evenly distributed in the length direction of the partition (3); The plurality of the support plates (1) and the plurality of the baffle plates (2) are connected in series along the length of the partition plate (3) via the first connecting rod (5).

7. The tube bundle assembly according to claim 6, characterized in that, The tube bundle assembly also includes a plurality of second connecting rods (6) and a plurality of third connecting rods (7); The plurality of second connecting rods (6) are connected in series between the plurality of support plates (1), and the plurality of third connecting rods (7) are connected in series between the plurality of baffles (2).

8. A shell-and-tube heat exchanger, characterized in that, It includes a housing (8) and a tube bundle assembly according to any one of claims 1-7, wherein the tube bundle assembly is assembled inside the housing (8).

9. The shell-and-tube heat exchanger according to claim 8, characterized in that, The shell-and-tube heat exchanger also includes: Tube sheet (4), two tube sheets (4) are provided, which are respectively arranged on both sides of the length direction of the housing (8). The tube sheet (4) includes a first tube through area (41) and a second tube through area (42); The first tube-passing area (41) is provided with a plurality of first tube-passing holes (411) for passing through the first tube bundle; The second tube-passing area (42) is provided with a plurality of second tube-passing holes (421) for passing through the second tube bundle.

10. The shell-and-tube heat exchanger according to claim 9, characterized in that, The housing (8) is a cylindrical housing with openings on both sides along its length. The tube bundle assembly is assembled inside the housing (8) through the openings. The partition (3) in the tube bundle assembly divides the interior of the housing (8) into a first cavity (81) and a second cavity (82) that allow fluid flow and are distributed vertically. The support plate (1) is located in the first cavity (81) and the baffle plate (2) is located in the second cavity (82). Two tube sheets (4) are symmetrically arranged at the opening positions on both sides of the housing (8), wherein a plurality of first through holes (411) in the first through area (41) of the tube sheet (4) correspond one-to-one with a plurality of support plate holes (11) on the support plate (1) in the first cavity (81), and a plurality of second through holes (421) in the second through area (42) of the tube sheet (4) correspond one-to-one with a plurality of baffle plate holes (21) on the baffle plate (2) in the second cavity (82); The housing (8) is provided with a refrigerant inlet (83) and a refrigerant outlet (84). The refrigerant inlet (83) is connected to the first cavity (81), and the refrigerant outlet (84) is connected to the second cavity (82).

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