Easily detachable coiled tube type heat exchanger structure

Abstract

The utility model relates to the field of devices for wound tube type heat exchanger structures, in particular to an easily-detachable wound tube type heat exchanger structure which comprises two shell assemblies, a wound tube type heat exchanger and a cleaning unit, the two shell assemblies are symmetrically arranged and used in cooperation, and the cleaning unit is used for cleaning the wound tube type heat exchanger. The coiled tube heat exchanger is arranged between the two shell assemblies and detachably and fixedly connected with the two shell assemblies, the number of the cleaning units is two, and each cleaning unit is fixedly connected with one shell assembly. The problem that in the background technology, in the using process of the heat exchanger, the heat exchanger needs to be regularly disassembled to clean the interior, and the situation that the service life is affected by internal scaling is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of devices for wound tube heat exchanger structures, and in particular, a wound tube heat exchanger structure that is easy to disassemble. Background Technology

[0002] Spiral wound tube heat exchangers are a new type of shell-and-tube heat exchanger. They are named for the reverse spiral winding of the heat exchange tubes. Compared to commonly used shell-and-tube and plate heat exchangers in China, they offer higher heat exchange efficiency. During operation, heat exchangers often require periodic disassembly and cleaning to prevent internal scaling and extend their lifespan. Therefore, there is a pressing need for an easily disassembleable wound tube heat exchanger structure. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to provide an easily detachable wound tube heat exchanger structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A detachable coiled tube heat exchanger structure includes: a shell assembly, a coiled tube heat exchanger, and a cleaning unit. Two shell assemblies are provided, symmetrically arranged, and used in conjunction. The coiled tube heat exchanger is disposed between the two shell assemblies and is detachably and fixedly connected to the two shell assemblies. Two cleaning units are provided, and each cleaning unit is fixedly connected to one shell assembly.

[0006] Both of the aforementioned housing assemblies include: a housing, an elongated hole, a fixing unit, and a semi-circular notch. The housing has an elongated hole along its length. The fixing unit is fixed to both the inner top surface and the inner bottom surface of the housing. The fixing unit and the side surfaces of the top and bottom surfaces of the housing are provided with semi-circular notches.

[0007] Both of the aforementioned fixing units include: a sliding pin, a first spring, a spring baffle, and a horizontal pin. The sliding pin slides through the top and bottom surfaces of the outer casing. The first spring is fitted onto the sliding pin. The spring baffle is fixed onto the sliding pin. The first spring is located above the spring baffle. A horizontal pin is fixed on the inner wall of the outer casing. The horizontal pin and the sliding pin are on the same plane. A horizontal pin hole is provided on the horizontal pin.

[0008] The coiled tube heat exchanger includes: a tube sheet, coiled tubes, fixing blocks, and a top hole. Two tube sheets are symmetrically arranged, and a coiled tube is fixedly connected between the two tube sheets. Fixing blocks are symmetrically fixed on both tube sheets. A top hole is provided on the top surface of each fixing block, and a horizontal hole is provided on the side of each fixing block. The horizontal hole is connected to the top hole. A horizontal pin slides through the horizontal hole, and a sliding pin slides through the top hole and the horizontal pin hole. Inlet and outlet water ports are provided on both tube sheets, and the inlet and outlet water ports are located in semi-circular notches.

[0009] The cleaning unit includes: a guide post, a second spring, and a semi-circular brush. The guide post is fixed to the outside of the outer shell. The guide post is located above the elongated hole. The second spring is fitted on the guide post. One end of the semi-circular brush slides through the elongated hole and is slidably connected to the guide post. The top of the semi-circular brush rests against the winding tube.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention provides an easily disassembled coiled tube heat exchanger structure, which can solve the problem mentioned in the background art: during the use of heat exchangers, it is necessary to disassemble them regularly for internal cleaning to avoid internal scaling affecting service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a front view of the outer casing;

[0014] Figure 3 This is a top view of the outer casing;

[0015] Figure 4 This is a top view of the tube sheet;

[0016] Figure 5 This is a magnified view of a portion of the outer casing assembly;

[0017] Figure 6 It is a horizontal top view;

[0018] Figure 7 This is a top view of a semi-circular brush.

[0019] Figure 8 This is a schematic diagram of the outer casing assembly structure. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0021] A detachable coiled tube heat exchanger structure includes: a shell assembly 1, a coiled tube heat exchanger 2, and a cleaning unit 3. Two shell assemblies 1 are provided, symmetrically arranged, and used in conjunction. The coiled tube heat exchanger 2 is disposed between the two shell assemblies 1 and is detachably and fixedly connected to the two shell assemblies 1. Two cleaning units 3 are provided, and each cleaning unit 3 is fixedly connected to one shell assembly 1.

[0022] Both of the aforementioned housing assemblies 1 include: housing 1-1, elongated hole 1-2, fixing unit 1-3, and semi-circular notch 1-4. The housing 1-1 is provided with elongated hole 1-2 along its length direction. The fixing unit 1-3 is fixed on both the inner top surface and the inner bottom surface of the housing 1-1. The fixing unit 1-3 and the side surfaces of the top and bottom surfaces of the housing 1-1 are provided with semi-circular notch 1-4.

[0023] Both of the aforementioned fixing units 1-3 include: a sliding pin 1-3-1, a spring 1-3-2, a spring baffle 1-3-3, and a horizontal pin 1-3-4. The sliding pin 1-3-1 slides through the top and bottom surfaces of the outer shell 1-1. The spring 1-3-2 is fitted onto the sliding pin 1-3-1. The spring baffle 1-3-3 is fixed onto the sliding pin 1-3-1. The spring 1-3-2 is located above the spring baffle 1-3-3. A horizontal pin 1-3-4 is fixed on the inner wall of the outer shell 1-1. The horizontal pin 1-3-4 and the sliding pin 1-3-1 are on the same plane. A horizontal pin hole is provided on the horizontal pin 1-3-4.

[0024] The coiled tube heat exchanger 2 includes: a tube sheet 2-1, coiled tubes 2-2, a fixing block 2-3, and a top hole 2-4. Two tube sheets 2-1 are symmetrically arranged, and the coiled tubes 2-2 are fixedly connected between the two tube sheets 2-1. Fixing blocks 2-3 are symmetrically fixed on both tube sheets 2-1. The top surface of both fixing blocks 2-3 is provided with a top hole 2-4. The side surface of both fixing blocks 2-3 is provided with a horizontal hole, which is connected to the top hole 2-4. The horizontal pin 1-3-4 slides through the horizontal hole, and the sliding pin 1-3-1 slides through the top hole 2-4 and the horizontal pin hole. The two tube sheets 2-1 are provided with inlet and outlet water ports, which are located in the semi-circular notch 1-4.

[0025] The cleaning unit 3 includes: a guide post 3-1, a second spring 3-2, and a semi-circular brush 3-3. The guide post 3-1 is fixed on the outside of the outer shell 1-1. The guide post 3-1 is located above the elongated hole 1-2. The second spring 3-2 is fitted on the guide post 3-1. One end of the semi-circular brush 3-3 slides through the elongated hole 1-2 and is slidably connected to the guide post 3-1. The semi-circular brush 3-3 rests against the winding tube 2-2.

[0026] The working principle of this utility model is as follows:

[0027] When using the device, place the coiled tube heat exchanger 2 inside the outer casing 1-1, then insert the horizontal pin 1-3-4 into the transverse hole of the fixing block 2-3. Next, pull the sliding pins 1-3-1 on both sides, compressing the spring 1-3-2 via the spring baffle 1-3-3. The spring 1-3-2 resets the sliding pin 1-3-1. After pulling the sliding pin 1-3-1, continue pushing the outer casing 1-1 inwards, allowing the horizontal pin 1-3-4 to continue entering the transverse hole until it rests against the bottom surface of the transverse hole. At this point, the horizontal pin hole corresponds to the top hole 2-4. Then, release the sliding pin 1-3-1, and the spring 1-3-2 will cause the sliding pin 1-3-4 to move further into the transverse hole. 1. Reset the shell assembly 1 and fix the coiled tube heat exchanger 2 by inserting the top hole 2-4 and the horizontal pin hole. Fix the other shell assembly 1 in the same way. The shell 1-1 of the two shell assemblies 1 surrounds and protects the tube sheet 2-1 and the coiled tube 2-2. Reverse the above steps to disassemble the shell 1-1 for cleaning. When no disassembly is required for routine maintenance, pull the semi-ring brush 3-3 to slide down along the guide post 3-1 while compressing the second spring 3-2. The second spring 3-2 resets the semi-ring brush 3-3. The downward movement of the semi-ring brush 3-3 can clean the coiled tube 2-2 that is pressed against it, brushing away the dust and dirt adhering to the surface of the coiled tube 2-2.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A structure for an easily detachable wound-tube heat exchanger, characterized in that: include: The package includes an outer shell assembly (1), a coiled heat exchanger (2), and a cleaning unit (3). The outer shell assembly (1) consists of two units, which are symmetrically arranged and used in conjunction with each other. The coiled heat exchanger (2) is located between the two outer shell assemblies (1) and is detachably and fixedly connected to them. The cleaning unit (3) consists of two units, each of which is fixedly connected to one outer shell assembly (1).

2. The easily detachable wound-tube heat exchanger structure according to claim 1, characterized in that: Both of the aforementioned housing assemblies (1) include: a housing (1-1), an elongated hole (1-2), a fixing unit (1-3), and a semi-circular notch (1-4). The housing (1-1) is provided with an elongated hole (1-2) along its length direction. The fixing unit (1-3) is fixed on both the inner top surface and the inner bottom surface of the housing (1-1). The fixing unit (1-3) and the side surfaces of the top and bottom surfaces of the housing (1-1) are provided with semi-circular notches (1-4).

3. The easily detachable wound-tube heat exchanger structure according to claim 2, characterized in that: Both of the aforementioned fixing units (1-3) include: a sliding pin (1-3-1), a spring (1-3-2), a spring baffle (1-3-3), and a horizontal pin (1-3-4). The sliding pin (1-3-1) slides through the top and bottom surfaces of the outer shell (1-1). The spring (1-3-2) is fitted onto the sliding pin (1-3-1). The spring baffle (1-3-3) is fixed onto the sliding pin (1-3-1). The spring (1-3-2) is located above the spring baffle (1-3-3). A horizontal pin (1-3-4) is fixed on the inner wall of the outer shell (1-1). The horizontal pin (1-3-4) and the sliding pin (1-3-1) are on the same plane. A horizontal pin hole is provided on the horizontal pin (1-3-4).

4. The easily detachable wound-tube heat exchanger structure according to claim 3, characterized in that: The coiled tube heat exchanger (2) includes: tube sheet (2-1), coiled tube (2-2), fixing block (2-3), and top hole (2-4). Two tube sheets (2-1) are symmetrically arranged, and the coiled tube (2-2) is fixedly connected between the two tube sheets (2-1). Fixing blocks (2-3) are symmetrically fixed on both tube sheets (2-1). Top holes (2-4) are provided on the top surface of both fixing blocks (2-3). Horizontal holes are provided on the sides of both fixing blocks (2-3). The horizontal holes are connected to the top holes (2-4). The horizontal pin (1-3-4) slides into the horizontal holes. The sliding pin (1-3-1) slides into the top hole (2-4) and the horizontal pin hole. Inlet and outlet water ports are provided on both tube sheets (2-1). The inlet and outlet water ports are located in the semi-circular notch (1-4).

5. The easily detachable wound-tube heat exchanger structure according to claim 3, characterized in that: The cleaning unit (3) includes: a guide post (3-1), a second spring (3-2), and a semi-circular brush (3-3). The guide post (3-1) is fixed outside the outer shell (1-1). The guide post (3-1) is located above the elongated hole (1-2). The second spring (3-2) is fitted on the guide post (3-1). One end of the semi-circular brush (3-3) slides through the elongated hole (1-2) and is slidably connected to the guide post (3-1). The semi-circular brush (3-3) rests against the winding tube (2-2).

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