Plate-fin heat exchanger with variable fin spacing

Abstract

The utility model relates to the technical field of plate-fin heat exchangers, and discloses a variable fin spacing type plate-fin heat exchanger which comprises a heat exchanger body and plate-fin bodies, and a lower connecting rod and an upper connecting rod are fixed to the upper end and the lower end of each plate-fin body respectively. Lower connecting grooves matched with the lower connecting rods are formed in the bottom face in the heat exchanger body, the outer sides of the upper connecting rods are sleeved with fixed pressing plates, the fixed pressing plates are slidably connected into the heat exchanger body in a sleeved mode, movable grooves matched with the upper connecting rods are formed in the fixed pressing plates, and connecting screw rods are fixed to the two ends of each fixed pressing plate. According to the adjustable plate-fin heat exchanger, through the adjustable design between the plate-fin bodies, when the adjustable plate-fin heat exchanger is used, the distance between every two adjacent plate-fin bodies can be adjusted according to the requirement for heat dissipation intensity, after adjustment, the plate-fin bodies can be rapidly pressed and fixed, the problem that when an existing plate-fin heat exchanger is used, the distance between fins is inconvenient to adjust is solved, and the heat dissipation efficiency is improved. And the application range of the plate-fin heat exchanger is widened.

Description

TECHNICAL FIELD

[0001] The utility model application relates to plate -fin heat exchanger technical field, concretely is variable fin spacing formula plate -fin heat exchanger. BACKGROUND

[0002] As a kind of heat exchange equipment, plate-fin heat exchanger is usually composed of baffle, fin, seal bar, guide vane, fin and guide vane are placed between adjacent two baffle, and seal bar is composed of a sandwich, called channel, such sandwich is stacked according to the different ways of fluid, brazing into a whole to form plate bundle, plate bundle is the core of plate-fin heat exchanger, widely used in petroleum, chemical industry, natural gas processing and other industries.

[0003] Heat transfer process is mainly completed through fin heat conduction and convection heat transfer between fin and fluid, and the main function of fin is to expand heat transfer area, but due to the distance between fins, it relates to the flow of fluid when passing through, but the distance between fins on the existing plate-fin heat exchanger cannot be adjusted according to the heat exchange needs of fluid, which greatly reduces the application range of plate-fin heat exchanger. SUMMARY

[0004] In order to solve the problem that the existing plate-fin heat exchanger is inconvenient to adjust the fin spacing during use, the utility model provides variable fin spacing plate-fin heat exchanger to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] Variable fin spacing plate-fin heat exchanger, including heat exchanger main part and plate-fin main body, each plate-fin main body is fixed with lower connecting rod and upper connecting rod at upper and lower ends respectively, lower connecting groove matched with lower connecting rod is arranged on the bottom surface of heat exchanger main body, fixed pressing plate is sleeved outside upper connecting rod, fixed pressing plate is slidingly sleeved in heat exchanger main body, movable groove matched with upper connecting rod is arranged in fixed pressing plate, connecting screw is fixed at both ends of fixed pressing plate, one end of connecting screw extending to the outside of heat exchanger main body is threadedly sleeved with fixed clamping block, and moving groove matched with connecting screw is arranged on both sides of heat exchanger main body.

[0007] Further, the width of lower connecting groove and fixed pressing plate is less than the width of plate-fin main body, and the height of each lower connecting rod is less than the distance between plate-fin main body and the top surface of heat exchanger main body.

[0008] Further, each connecting screw is arranged as T-shaped transversely, and the width of each fixed clamping block is greater than the width of moving groove.

[0009] Further, the fixed pressing plate has a width smaller than the width of the heat exchanger body, and a receiving groove is formed in the top surface of the heat exchanger body and matched with the fixed pressing plate.

[0010] Further, the fixed pressing plate has a width smaller than the width of the heat exchanger body, and a receiving groove is formed in the top surface of the heat exchanger body and matched with the fixed pressing plate.

[0011] Further, the fixed pressing plate has a width smaller than the width of the heat exchanger body, and a receiving groove is formed in the top surface of the heat exchanger body and matched with the fixed pressing plate.

[0012] Compared with the prior art, the plate-fin heat exchanger has the advantages that:

[0013] 1. In the plate-fin heat exchanger, the adjustable design between the plate-fin bodies can adjust the distance between two adjacent plate-fin bodies according to the heat dissipation intensity, and the plate-fin bodies can be quickly fixed after adjustment, thereby solving the problem that the distance between fins cannot be adjusted in the prior art plate-fin heat exchanger, and improving the application range of the plate-fin heat exchanger.

[0014] 2. In the plate-fin heat exchanger, the detachable design of the fixed pressing plate can adjust the number of plate-fin bodies in the heat exchanger according to the distance design of the plate-fin bodies, facilitate the increase or decrease of the number of plate fins, and facilitate the replacement of damaged plate-fin bodies, thereby further improving the practicability of the heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a schematic view of the plate-fin heat exchanger according to an embodiment of the present application;

[0017] Figure 2 is Figure 1 is a schematic view of the plate-fin heat exchanger according to an embodiment of the present application;

[0018] Figure 3 is Figure 1 is a schematic view of the plate-fin heat exchanger according to an embodiment of the present application; Figure 2 is an enlarged schematic view of the structure at A in the embodiment.

[0019] The meanings of the reference numerals in the drawings are as follows: 1, heat exchanger main body; 2, plate-fin main body; 3, lower connecting rod; 4, lower connecting groove; 5, upper connecting rod; 6, fixed pressing plate; 7, movable groove; 8, connecting screw rod; 9, moving groove; 10, fixed clamping block; 11, limiting clamping block; 12, fixed screw rod; 13, storage groove. DETAILED DESCRIPTION

[0020] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the following described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] Reference Figure 1 , Figure 2 and Figure 3 The variable fin pitch plate-fin heat exchanger comprises a heat exchanger main body 1 and plate-fin main bodies 2. The lower connecting rod 3 and the upper connecting rod 5 are respectively fixed to the upper and lower ends of each plate-fin main body 2. The lower connecting groove 4 is arranged on the inner bottom surface of the heat exchanger main body 1 and matched with the lower connecting rod 3. The fixed pressing plate 6 is sleeved on the outer side of the upper connecting rod 5. The width of the fixed pressing plate 6 is smaller than the width of the inner part of the heat exchanger main body 1. The width of the lower connecting groove 4 and the fixed pressing plate 6 is smaller than the width of the plate-fin main body 2. The height of each lower connecting rod 3 is smaller than the distance between the plate-fin main body 2 and the inner top surface of the heat exchanger main body 1. The fixed pressing plate 6 is slidably sleeved in the inner part of the heat exchanger main body 1. The movable groove 7 is arranged in the inner part of the fixed pressing plate 6 and matched with the upper connecting rod 5. The connecting screw rod 8 is fixed to the two ends of the fixed pressing plate 6 and extends to the outer side of the heat exchanger main body 1. The fixed clamping block 10 is threadedly sleeved on one end of the connecting screw rod 8 extending to the outer side of the heat exchanger main body 1. Each connecting screw rod 8 is arranged in a T shape horizontally. The width of each fixed clamping block 10 is greater than the width of the moving groove 9. The moving groove 9 is arranged on the two sides of the heat exchanger main body 1 and matched with the connecting screw rod 8.

[0022] Specifically, when the distance between the plate-fin main bodies 2 needs to be adjusted, the fixed clamping blocks 10 on the two sides are screwed to release the clamping and fixing of the fixed pressing plate 6 on the heat exchanger main body 1. The connecting screw rod 8 is pulled upward to drive the fixed pressing plate 6 to move upward, so that the fixed pressing plate 6 releases the pressing and fixing of the plate-fin main body 2. The plate-fin main body 2 is pulled to drive the lower connecting rod 3 to move in the lower connecting groove 4 and the upper connecting rod 5 to move in the movable groove 7. Thus, the distance between the adjacent two plate-fin main bodies 2 can be adjusted. After the adjustment is completed, the fixed pressing plate 6 is pulled downward to press and fix the plate-fin main body 2. Then, the fixed clamping blocks 10 are screwed to clamp the heat exchanger main body 1.

[0023] As an optimization scheme, as shown in the drawings, a receiving groove 13 matched with the fixed pressing plate 6 is arranged on the inner top surface of the heat exchanger body 1, and a limiting block 11 is fixed to the end of each connecting screw 8 away from the fixed clamping block 10, and a fixed screw 12 is fixed to the end of each limiting block 11 away from the connecting screw 8, the limiting block 11 and the fixed screw 12 are inserted into the fixed pressing plate 6 in a clamping manner, and a rectangular groove matched with the limiting block 11 and a fixed hole matched with the fixed screw 12 are arranged on both sides of the movable groove 7, the width of each limiting block 11 is smaller than the width of the threaded section of the connecting screw 8, and the fixed screw 12 is screwed with a nut at the end extending into the movable groove 7 from the fixed pressing plate 6. Figure 3

[0024] Specifically, when the plate-fin body 2 needs to be replaced or added or subtracted, the nut on the fixed screw 12 is screwed to release the fixing of the fixed screw 12 and the fixed pressing plate 6, the connecting screw 8 is pulled outward to pull out the limiting block 11 and the fixed screw 12 from the fixed pressing plate 6, the limiting of the fixed pressing plate 6 is released, the fixed pressing plate 6 is pushed upward to move into the receiving groove 13, the limiting of the fixed pressing plate 6 on the upper connecting rod 5 is released, the corresponding plate-fin body 2 is pulled upward, the lower connecting rod 3 is moved out of the lower connecting groove 4, and then the plate-fin body 2 is removed from the heat exchanger body 1, and after the processing is completed, the fixed pressing plate 6 is moved downward to be sleeved on the upper connecting rod 5, the connecting screw 8 is moved through the moving groove 9, the limiting block 11 and the fixed screw 12 are inserted into the fixed pressing plate 6, and the nut is fixed.

[0025] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalency of the essential elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0026] The foregoing is only to explain the technical solutions of the present application, and not to limit the same; although the foregoing has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.​

Claims

1. A variable fin pitch plate-fin heat exchanger, characterized in that: The heat exchanger includes a heat exchanger body (1) and a plate-fin body (2). Each plate-fin body (2) is fixed with a lower connecting rod (3) and an upper connecting rod (5) at its upper and lower ends, respectively. The bottom surface of the heat exchanger body (1) is provided with a lower connecting groove (4) that cooperates with the lower connecting rod (3). A fixed pressure plate (6) is sleeved on the outside of the upper connecting rod (5). The fixed pressure plate (6) is slidably sleeved inside the heat exchanger body (1). The fixed pressure plate (6) is provided with a movable groove (7) that cooperates with the upper connecting rod (5). Connecting screws (8) are fixed at both ends of the fixed pressure plate (6). A fixed clamping block (10) is threaded on one end of the connecting screw (8) that extends to the outside of the heat exchanger body (1). Movable grooves (9) that cooperate with the connecting screws (8) are provided on both sides of the heat exchanger body (1).

2. The variable fin spacing plate-fin heat exchanger according to claim 1, characterized in that: The width of the lower connecting groove (4) and the fixed pressure plate (6) is smaller than the width of the plate fin body (2), and the height of each lower connecting rod (3) is smaller than the distance between the plate fin body (2) and the inner top surface of the heat exchanger body (1).

3. The variable fin spacing plate-fin heat exchanger according to claim 1, characterized in that: Each of the connecting screws (8) is configured as a horizontally placed T-shape, and the width of each fixing clamp (10) is greater than the width of the moving groove (9).

4. The variable fin spacing plate-fin heat exchanger according to claim 1, characterized in that: The width of the fixed pressure plate (6) is smaller than the width inside the heat exchanger body (1), and a storage groove (13) that cooperates with the fixed pressure plate (6) is provided on the top surface inside the heat exchanger body (1).

5. The variable fin spacing plate-fin heat exchanger according to claim 1, characterized in that: Each of the connecting screws (8) has a limiting block (11) fixed at one end away from the fixed clamping block (10), and each of the limiting blocks (11) has a fixing screw (12) fixed at one end away from the connecting screw (8). The limiting block (11) and the fixing screw (12) are engaged and inserted into the fixed pressure plate (6). The fixing screw (12) extends through the fixed pressure plate (6) and into the movable groove (7) at one end, and is threaded with a nut.

6. The variable fin spacing plate-fin heat exchanger according to claim 5, characterized in that: Both sides of the movable groove (7) are provided with rectangular grooves that cooperate with the limiting block (11) and fixing holes that cooperate with the fixing screw (12). The width of each limiting block (11) is smaller than the width of the threaded section of the connecting screw (8).

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