Novel heat exchanger shell pass structure capable of preventing shell pass medium wall flow

Abstract

The utility model discloses a novel heat exchanger shell pass structure capable of preventing shell pass medium wall flow. The structure comprises a shell pass barrel, tube plates, baffling fences and clamping rings, the tube plates are installed at the two ends of the shell pass barrel, the multiple baffling fences are installed in the shell pass barrel, heat exchange tubes are installed between the baffling fences in a penetrating mode, the clamping rings are arranged on the surfaces of the heat exchange tubes in a sleeving mode, the clamping rings are in a C-like shape, and a liquid inlet and a liquid outlet are formed in the surface of the shell pass barrel. The retainer ring is arranged on the heat exchange tube between the baffling grids and plays a role in preventing wall flow, so that the situation that the flow direction of a shell pass medium of the baffling grid heat exchanger is parallel to the axis of the heat exchange tube, so that the medium forms wall flow along the wall of the heat exchange tube, the flow speed of the medium close to the wall of the heat exchange tube is reduced, and the heat exchange effect of the heat exchanger is reduced is effectively avoided; and meanwhile, the outer wall of the heat exchange tube is easier to scale. The structure has the characteristics of easiness in installation, simple structure, convenience in manufacturing and high heat exchange efficiency.

Description

Technical Field

[0001] The utility model generally relates to the technical field of heat exchangers, and in particular to a novel shell-side structure of a heat exchanger capable of preventing shell-side medium wall flow. Background Art

[0002] The commonly used vertical baffle heat exchangers currently have the following shortcomings in use: the flow direction of the medium in the shell side of the baffle heat exchanger is parallel to the axis of the heat exchange tube, which easily forms wall flow along the wall of the heat exchange tube, reducing the flow rate of the medium close to the wall of the heat exchange tube, that is, reducing the convective heat transfer coefficient, thereby reducing the heat exchange effect of the heat exchanger, and also making the outer wall of the heat exchange tube more susceptible to scaling, which has a great impact on the heat exchange efficiency of the heat exchanger over time.

[0003] Therefore, a new type of vertical baffle support heat exchanger shell structure is needed to prevent wall flow and improve heat exchange efficiency. Utility Model Content

[0004] In view of this, the present application provides a novel shell-side structure of a heat exchanger for preventing shell-side medium wall flow.

[0005] The shell side structure of the heat exchanger for preventing shell side medium wall flow described in the utility model comprises a shell side cylinder, a tube sheet, a baffle grid and a clamping ring, the tube sheet is installed at both ends of the shell side cylinder, a plurality of baffle grids are installed in the shell side cylinder, heat exchange tubes are installed between the baffle grids, the surface of the heat exchange tube is sleeved with a clamping ring, the clamping ring is quasi-"C"-shaped, and the surface of the shell side cylinder is provided with a liquid inlet and a liquid outlet.

[0006] In some preferred embodiments, the heat exchange tubes are provided in multiple groups, and are divided into group A heat exchange tubes, group B heat exchange tubes and group C heat exchange tubes in order of arrangement. The heat exchange tubes in each group are staggered, and a clamping ring is provided on the surface of each group of heat exchange tubes. The baffles divide the shell-side cylinder into 1#, 2#, 3#, 4# and 5#. The clamping ring of the heat exchange tube of group A is located at the lower part of the baffle grid in 1#, the clamping ring of the heat exchange tube of group B is located at the lower part of the baffle grid in 2#, and the clamping ring of the heat exchange tube of group C is located at the lower part of the baffle grid in 3#.

[0007] In some preferred embodiments, the surface of the clamp ring is provided with a through groove, and a plurality of through grooves are provided and are equidistantly distributed. The surface of the clamp ring is provided with a mounting hole, and the mounting hole is used to fix the clamp ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solution of the present application, the implementation mode of the present application will be further illustrated and described according to the following drawings. These drawings are only used to more conveniently and specifically describe the implementation mode of the present application rather than to limit the present application.

[0009] Figure 1It is a schematic diagram of the overall structure of the shell side structure of the heat exchanger for preventing the shell side medium wall flow according to the utility model;

[0010] Figure 2 A schematic diagram of heat exchange tube grouping of a shell-side structure of a heat exchanger for preventing shell-side medium wall flow according to the utility model; and

[0011] Figure 3 The utility model is a schematic diagram of the clamping ring structure of the shell side structure of the heat exchanger for preventing the shell side medium wall flow. DETAILED DESCRIPTION

[0012] like Figure 1 , Figure 3 As shown, the present application provides a novel shell-side structure of a heat exchanger for preventing the wall flow of shell-side media, comprising: a shell-side cylinder 1, a tube sheet 2, a baffle 3 and a clamp 5. The tube sheet 2 is installed at both ends of the shell-side cylinder 1, a plurality of baffles 3 are installed in the shell-side cylinder 1, heat exchange tubes 4 are installed through the baffles 3, the surface of the heat exchange tube 4 is sleeved with a clamp 5, the clamp 5 is quasi-"C" shaped, and the surface of the shell-side cylinder 1 is provided with a liquid inlet and a liquid outlet.

[0013] In a preferred embodiment, the medium enters the shell-side cylinder through the liquid inlet. The flow direction of the medium is parallel to the axis of the heat exchange tube 4, so that the medium forms a wall flow along the heat exchange tube 4, which reduces the flow rate of the medium close to the wall of the heat exchange tube 4, and finally reduces the heat exchange effect of the heat exchanger. The above-mentioned wall flow problem can be solved by using a clamping ring 5 clamped on the heat exchange tube 4 between the baffles 3. Specifically, the clamping ring 5 plays a turbulent role for the medium flowing along the heat exchange tube 4, directly avoiding the wall flow formed along the wall of the heat exchange tube 4 due to the fact that the flow direction of the medium in the shell side of the heat exchanger 3 is parallel to the axis of the heat exchange tube 4. At the same time, under the effect of the turbulent flow, the problem of easy scaling of the outer wall of the heat exchange tube 4 is also avoided. The connection method between the clamping ring 5 and the heat exchange tube 4 is clamping. This installation method is simple and easy to operate, and also improves work efficiency.

[0014] In another preferred embodiment, Figure 1 , Figure 2 and Figure 3As shown, the heat exchange tubes 4 are provided with multiple groups, and are divided into group A heat exchange tubes 4, group B heat exchange tubes 4, and group C heat exchange tubes 4 in the order of arrangement. Each group of heat exchange tubes 4 is staggered, and each group of heat exchange tubes 4 is provided with a clamping ring 5 on its surface. The baffle grid 3 divides the shell-side cylinder 1 into 1#, 2#, 3#, 4#, and 5#. The clamping ring 5 of the heat exchange tube 4 of group A is located at the lower part of the baffle grid 3 in 1#, the clamping ring 5 of the heat exchange tube 4 of group B is located at the lower part of the baffle grid 3 in 2#, and the clamping ring 5 of the heat exchange tube 4 of group C is located at the lower part of the baffle grid 3 in 3#. In such an arrangement, since the surfaces of all heat exchange tubes 4 are provided with clamping rings 5, and the clamping rings 5 ​​of adjacent heat exchange tubes 4 do not interfere with each other, it not only prevents the outer wall medium of the heat exchange tube 4 from generating wall flow, but also plays a role of flow disturbance in sections, greatly improving the heat exchange efficiency of the heat exchanger.

[0015] In another preferred embodiment, Figure 3 As shown, the surface of the collar 5 is provided with a through slot 6, and the through slot 6 is provided in plurality and is equidistantly distributed, and the flow disturbance effect can be improved by the through slot 6. In another preferred embodiment, the surface of the collar 5 is further provided with a mounting hole 7, and the collar 5 is fixed by the mounting hole 7, thereby avoiding displacement due to the flow of the medium.

[0016] It should be noted that in the context of this application, the "left end" and "right end" of each connecting rod refer to relative positions, which are defined only for the convenience of describing this application and should not be considered as limiting this application. When the relative positions change, the original "left end" can be considered as the "right end", and the original "right end" can be considered as the "left end".

[0017] A large number of specific examples are provided in the embodiments provided herein, and it should be understood that these examples are only for the purpose of describing the embodiments of the present application in detail and are not intended to limit the present application. The embodiments in the present application can be practiced without these specific examples. In some embodiments, structures and / or technologies known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present application.

[0018] Although the preferred embodiments of the present application have been shown and described herein, it is readily understood by those skilled in the art that these embodiments are provided by way of example only. Those skilled in the art will now expect multiple changes, modifications and substitutions without departing from the present application. It should be understood that the various alternatives of the present application embodiments described herein are optionally used to implement the present application. It is intended to define the scope of the present application by the claims, and thus encompass structures and equivalents thereof within the scope of these claims.

Claims

1. A new shell-side heat exchanger structure for preventing shell-side medium wall flow, characterized in that: The invention comprises a shell-side cylinder (1), a tube sheet (2), a baffle (3) and a clamp (5), wherein the tube sheet (2) is installed at both ends of the shell-side cylinder (1), a plurality of baffles (3) are installed in the shell-side cylinder (1), heat exchange tubes (4) are installed between the baffles (3), the surface of the heat exchange tube (4) is sleeved with the clamp (5), and the clamp (5) is quasi-"C"-shaped, and the surface of the shell-side cylinder (1) is provided with a liquid inlet and a liquid outlet.

2. The heat exchanger shell structure according to claim 1, characterized in that: The heat exchange tubes (4) are arranged in multiple groups, and are divided into group A heat exchange tubes (4), group B heat exchange tubes (4) and group C heat exchange tubes (4) in order of arrangement. The heat exchange tubes (4) in each group are staggered, and the clamping ring (5) is arranged on the surface of each group of heat exchange tubes (4).

3. The heat exchanger shell structure according to claim 2, characterized in that: The baffle (3) divides the shell-side cylinder (1) into 1#, 2#, 3#, 4# and 5#, the clamping ring (5) of the heat exchange tube (4) of group A is located at the lower part of the baffle (3) in 1#, the clamping ring (5) of the heat exchange tube (4) of group B is located at the lower part of the baffle (3) in 2#, and the clamping ring (5) of the heat exchange tube (4) of group C is located at the lower part of the baffle (3) in 3#.

4. The heat exchanger shell structure according to claim 1, characterized in that: The surface of the clamping ring (5) is provided with a through groove (6), wherein a plurality of through grooves (6) are provided and are distributed at equal intervals.

5. The heat exchanger shell structure according to claim 1, characterized in that: A mounting hole (7) is provided on the surface of the clamping ring (5), wherein the mounting hole (7) is used to fix the clamping ring (5).

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