Winding type heat exchanger convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of polycrystalline silicon production, in particular to a winding type heat exchanger convenient to disassemble and assemble, which comprises a first sealing head, one end of the first sealing head is clamped at an opening at one end of a cylinder, a first sealing tube plate is embedded on the inner wall of the end of the cylinder, a plurality of winding tube bundles are inserted at one end of the first sealing tube plate, and a second sealing tube plate is embedded at the other end of the first sealing tube plate. The other end of the winding tube bundle is inserted into one end of the second sealing tube plate, a second sealing head is clamped to the end, away from the first sealing head, of the barrel, an inlet tube opening is formed in the side, close to the first sealing head, of the outer wall of the barrel, and a discharge tube opening is formed in the side, close to the second sealing head, of the outer wall of the barrel. According to the improved winding type heat exchanger, the first connecting screw plate and the second connecting screw plate enable the end socket to be in screw joint with the cylinder body, disassembly is convenient, the contact faces of the sealing tube plates are provided with the magnetic attraction pieces capable of being attracted, connection between the sealing tube plates and the end socket is reinforced, and operation stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon production, in particular to a winding heat exchanger which is easy to assemble and disassemble. Background Art

[0002] Polycrystalline silicon is a widely used semiconductor material that plays a central role in the production of solar panels and electronic components. This material is a high-purity form of elemental silicon, composed of many small grains or crystals, unlike single-crystal silicon, which has a continuous, single-lattice crystal structure. Due to its cost-effectiveness and relatively good electrical properties, polycrystalline silicon is widely used in various technological products and is also a key material in the manufacture of solar cells.

[0003] A wound-wound heat exchanger is a type of heat exchanger that regulates temperature by transferring heat between two or more fluids. This type of heat exchanger typically consists of a series of tubes wrapped around a central pipe. The wound-wound design allows for a compact footprint and efficient heat exchange, making it ideal for applications where a compact heat exchanger is required or where multiple fluids must be processed. In industrial applications, wound-wound heat exchangers can be used for heating or cooling fluids, condensing steam, and recovering waste heat. Their compactness, flexible design, and corrosion resistance make them suitable for harsh environments.

[0004] In the process of realizing the present invention, the inventors discovered the following problems with the prior art: 1. Existing wound heat exchangers are often designed as fixed, integrated units, making it difficult to disassemble the heat exchanger for repair and replacement of the wound tube bundles inside. 2. Existing wound heat exchangers often have gaps between the sealed tube sheets and the head during assembly and connection, requiring a device that can press the two together. Utility Model Content

[0005] The purpose of the present invention is to provide a wound heat exchanger that is easy to disassemble and assemble, so as to solve the problem that the existing wound heat exchanger proposed in the above background technology is often designed to be fixed and integrated. Therefore, when repairing and replacing the wound tube bundle inside it, it is difficult to disassemble the heat exchanger. In addition, when the sealed tube sheet and the head provided inside the existing wound heat exchanger are used for assembly and connection, there is often a gap between them, and a device that can press the two together is needed. In order to achieve the above purpose, the present invention provides the following technical solutions: a wound heat exchanger that is easy to disassemble and assemble, comprising a first head, one end of the first head is engaged with an opening at one end of the cylinder, a first sealed tube sheet is embedded in the inner wall of the end of the cylinder, a plurality of wound tube bundles are inserted into one end of the first sealed tube sheet, the other end of the wound tube bundle is inserted into one end of the second sealed tube sheet, the end of the cylinder away from the first head is engaged with the second head, an inlet pipe port is provided on the side of the outer wall of the cylinder close to the first head, and an outlet pipe port is provided on the side of the outer wall of the cylinder close to the second head;

[0006] The left and right ends of the cylinder are respectively provided with a first protrusion and a second protrusion;

[0007] The contact surfaces of the first head and the first sealed tube sheet are both provided with a first magnetic sheet, the contact surfaces of the second head and the second sealed tube sheet are both provided with a second magnetic sheet, and the outer walls of the first magnetic sheet and the second magnetic sheet are provided with a heat insulation layer.

[0008] Further preferably, the outer wall of the outlet end of the first head is provided with a first connecting screw plate, and the outer wall of the inlet end of the second head is provided with a second connecting screw plate.

[0009] Further preferably, a first depression is provided on the inner wall of the outlet end of the first head, and a second depression is provided on the inner wall of the inlet end of the second head.

[0010] Further preferably, sealing rubber rings are bonded to the inner walls of the first recess and the second recess.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, the first head and the second head are respectively corresponding to the left and right ends of the cylinder, and the first head and the second head are respectively inserted into the port of the cylinder. During this period, the first depression and the second depression will respectively engage with the first protrusion and the second protrusion provided at the port of the cylinder, so that the first connecting screw plate and the second connecting screw plate can respectively fit and correspond to the screw hole plate opened on the outer wall of the port of the cylinder. At this time, the first connecting screw plate and the second connecting screw plate provided at the ports of the first head and the second head are threadedly connected to the screw hole plates opened at both ends of the cylinder using fastening screws to complete the assembly. When it needs to be disassembled, it is only necessary to unscrew the fastening screws outward and separate the first connecting screw plate and the second connecting screw plate from the two ports of the cylinder respectively, so as to complete the disassembly between the head and the cylinder, thereby replacing or repairing the wound tube bundle inside it.

[0013] In the present invention, the contact surfaces of the sealed tube sheets are provided with magnetic sheets that can be adsorbed and connected. A first magnetic sheet is provided on the contact surface of the first head and the first sealed tube sheet, and a second magnetic sheet is provided on the contact surface of the second head and the second sealed tube sheet. When the first magnetic sheet and the second magnetic sheet contact each other with the magnetic sheets at the corresponding positions, they will be adsorbed and connected together due to different magnetism, thereby strengthening the connection between the sealed tube sheets and the heads, so that the first sealed tube sheet and the second sealed tube sheet can be respectively pressed against the inner walls of the end heads of the first head and the second head, thereby further limiting the position of the wound tube bundle and ensuring its stability during operation. Moreover, because the Curie temperature of the magnetic sheet and the upper limit temperature of the wound heat exchanger are both within 400°C, an insulating layer is also provided on the contact surface of the magnetic sheet and the sealed tube sheet to separate the magnetic sheet from the sealed tube sheet, thereby better ensuring the magnetic performance of the magnetic sheet and enabling it to be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the cylinder structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the first head structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the second head structure of the utility model.

[0019] In the figure: 1. First head; 101. First connecting screw plate; 102. First recess; 2. Cylinder; 201. First protrusion; 202. Second protrusion; 3. First sealed tube sheet; 301. First magnetic sheet; 4. Wrapped tube bundle; 5. Second sealed tube sheet; 501. Second magnetic sheet; 6. Second head; 601. Second connecting screw plate; 602. Second recess; 7. Inlet pipe opening; 8. Outlet pipe opening. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] See also Figures 1 to 5 The utility model provides a technical solution: a wound heat exchanger that is easy to disassemble and assemble, comprising a first head 1, one end of the first head 1 being engaged with an opening at one end of a cylinder 2, a first sealed tube sheet 3 being embedded in the inner wall of the end of the cylinder 2, one end of the first sealed tube sheet 3 being plugged with a plurality of wound tube bundles 4, the other end of the wound tube bundle 4 being plugged with one end of a second sealed tube sheet 5, an end of the cylinder 2 away from the first head 1 being engaged with a second head 6, an outer wall of the cylinder 2 being close to the first head 1 and being provided with an inlet pipe opening 7, and an outer wall of the cylinder 2 being close to the second head 6 and being provided with an outlet pipe opening 8;

[0022] The left and right ends of the cylinder 2 are respectively provided with a first protrusion 201 and a second protrusion 202; it should be noted that the utility model sets the cylinder 2, the first head 1 and the second head 6 as detachable split components, so protrusions and recesses with corresponding positions and matching sizes are set in the cylinder 2 and the head. The first protrusion 201 provided at one end of the cylinder 2 can be engaged with the first recess 102 provided inside the first head 1, and the second protrusion 202 provided at the other end of the cylinder 2 can be engaged with the second recess 602 provided inside the second head 6, so that the first head 1 and the second head 6 can be fully inserted into the left and right ends of the cylinder 2, and are threadedly connected to the cylinder 2 through the first connecting screw plate 101 and the second connecting screw plate 601 provided respectively, thereby completing the assembly between the cylinder 2 and the head;

[0023] The contact surfaces of the first head 1 and the first sealed tube sheet 3 are both provided with a first magnetic sheet 301, and the contact surfaces of the second head 6 and the second sealed tube sheet 5 are both provided with a second magnetic sheet 501. The outer walls of the first magnetic sheet 301 and the second magnetic sheet 501 are provided with a heat insulation layer; it should be noted that when the first head 1 and the second head 6 are respectively engaged with the left and right ends of the cylinder 2, the inner walls of the end heads of the first head 1 and the second head 6 will respectively fit with the outer sides of the first sealed tube sheet 3 and the second sealed tube sheet 5. In order to ensure the sealing between the components and enable the entire wound tube bundle 4 to be more stably arranged inside the cylinder 2 to prevent it from positional displacement during operation, thereby affecting the normal operation of the equipment, the utility model provides magnetic sheets that can be adsorbed and connected on the contact surfaces of the heads and the sealed tube sheets. A first magnetic sheet 301 is provided, and a second magnetic sheet 501 is provided on the contact surface of the second head 6 and the second sealed tube sheet 5. When the first magnetic sheet 301 and the second magnetic sheet 501 contact the magnetic sheets at the corresponding positions, they will be adsorbed and connected together due to the different magnetism, thereby strengthening the connection between the sealed tube sheet and the head, so that the first sealed tube sheet 3 and the second sealed tube sheet 5 can be pressed against the inner walls of the end heads of the first head 1 and the second head 6 respectively, thereby further limiting the position of the wound tube bundle 4 and ensuring its stability during operation. Moreover, because the Curie temperature of the magnetic sheet and the upper limit temperature of the wound heat exchanger are both within 400°C, an insulating layer is also provided on the contact surface between the magnetic sheet and the sealed tube sheet to separate the magnetic sheet from the sealed tube sheet, thereby better ensuring the magnetic properties of the magnetic sheet and enabling it to be used normally.

[0024] In this embodiment, Figure 1 and Figure 4 As shown, the outer wall of the outlet end of the first head 1 is provided with a first connecting screw plate 101, and the outer wall of the inlet end of the second head 6 is provided with a second connecting screw plate 601; it should be noted that in the existing wound heat exchanger, the head and the cylinder 2 are generally set to a fixed integrated connection mode, so it is more troublesome to replace the wound tube bundle 4 inside it, so in the present invention, the first head 1 and the second head 6 are designed to be a detachable threaded connection with the cylinder 2, specifically, the first connecting screw plate 101 and the second connecting screw plate 601 are provided at the ports of the first head 1 and the second head 6, and the assembly is completed by threading them with the screw hole plates opened at both ends of the cylinder 2 through fastening screws. When it needs to be disassembled, it is only necessary to unscrew the fastening screws outwards and separate the first connecting screw plate 101 and the second connecting screw plate 601 from the two ports of the cylinder 2 respectively, so as to complete the disassembly between the head and the cylinder 2, thereby replacing or repairing the wound tube bundle 4 inside it.

[0025] In this embodiment, Figure 2 and Figure 4 As shown, the inner wall of the outlet end of the first head 1 is provided with a first recess 102, and the inner wall of the inlet end of the second head 6 is provided with a second recess 602; it should be noted that the utility model designs the connection between the head and the cylinder 2 as a detachable connection, so when connecting them, it is necessary to pay attention to the sealing and connection fit between the two. Therefore, in the utility model, the first head 1 and the second head 6 are provided with a first recess 102 and a second recess 602 on the inner wall of the port, respectively. When installing the head and the cylinder 2, it is only necessary to detach the first head 1 and the second head 6 to the corresponding cylinder 2. The left and right ends of the cylinder 2 are assembled, and the first head 1 and the second head 6 are respectively inserted into the port of the cylinder 2. During this period, the first recess 102 and the second recess 602 will respectively engage with the first protrusion 201 and the second protrusion 202 provided at the port of the cylinder 2, so that the first connecting screw plate 101 and the second connecting screw plate 601 can respectively fit and correspond to the screw hole plates opened on the outer wall of the port of the cylinder 2. At this time, the first head 1 and the second head 6 are respectively threadedly connected to the two ends of the cylinder 2 by tightening the screws to complete the assembly operation between the components.

[0026] In this embodiment, Figure 4 and Figure 5 As shown, the inner walls of the first recess 102 and the second recess 602 are both bonded with sealing rubber rings; it should be noted that, since the present invention sets the cylinder 2 and the first head 1 and the second head 6 as detachable separate components, it is necessary to consider the waterproof sealing of the component connection when assembling and connecting the cylinder 2 and the head. Therefore, in the present invention, sealing rubber rings are bonded to the inner walls of the first recess 102 and the second recess 602. When the operator engages the recess provided by the head with the protrusion provided by the cylinder 2, the first protrusion 201 will be in contact with the first recess 102. When the first and second protrusions 202 come into contact with the second recess 602, they squeeze the sealing rubber ring bonded to the inner wall and deform it, thereby filling the gap between the two contact surfaces and forming another sealing layer. When the first and second head 1 and 6 are combined and installed as a whole with the left and right ends of the cylinder 2, the sealing rubber rings provided at the contact surfaces of the two can effectively prevent liquid from leaking when entering the interior of the cylinder 2 from the head, thereby effectively enhancing the sealing and waterproof performance of the entire equipment.

[0027] The use method and advantages of this utility model: This is a wound heat exchanger that is easy to disassemble and assemble. When in use, the working process is as follows:

[0028] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, first, the wound tube bundle 4 is placed into the interior of the cylinder 2, and then the first sealed tube sheet 3 and the second sealed tube sheet 5 are respectively plugged into the left and right sides of the wound tube bundle 4, so that the first sealed tube sheet 3 and the second sealed tube sheet 5 can be snapped into the inner wall of the cylinder 2. At the same time, the operator can respectively correspond the first head 1 and the second head 6 to the left and right ends of the cylinder 2, and snap the first head 1 and the second head 6 into the port of the cylinder 2, so that the first recess 102 and the second recess 602 are respectively snapped into the first protrusion 201 and the second protrusion 202 provided at the port of the cylinder 2. At this time, the first magnetic sheet 301 provided on the contact surface of the first head 1 and the first sealed tube sheet 3, and the second magnetic sheet 501 provided on the contact surface of the second head 6 and the second sealed tube sheet 5, can contact each other with the magnetic sheets at the corresponding positions and be adsorbed and connected together. , thereby strengthening the mutual contact between the sealing tube sheet and the head, and at the same time, the first connecting screw plate 101 and the second connecting screw plate 601 can respectively fit in with the screw hole plate opened on the outer wall of the port of the cylinder 2. At this time, the first head 1 and the second head 6 are respectively threadedly connected to the two ends of the cylinder 2 by fastening screws, so that the assembly operation between the components can be completed. When the wound tube bundle 4 inside the entire heat exchanger needs to be repaired or replaced, the operator only needs to loosen the fastening screws first to release the position limit between the first connecting screw plate 101 and the second connecting screw plate 601 and the screw hole plate, and then manually pull the first head 1 and the second head 6 outward from the left and right ends of the cylinder 2, so that the first protrusion 201 and the second protrusion 202 can be separated from the first recess 102 and the second recess 602, thereby completing the disassembly of the heat exchanger.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wound heat exchanger that is easy to disassemble and assemble, comprising a first head (1), characterized in that: One end of the first seal (1) is engaged with an opening at one end of the cylinder (2); a first sealed tube sheet (3) is embedded in the inner wall of the end of the cylinder (2); a plurality of wound tube bundles (4) are plugged into one end of the first sealed tube sheet (3); the other end of the wound tube bundle (4) is plugged into one end of the second sealed tube sheet (5); a second seal (6) is engaged with the end of the cylinder (2) away from the first seal (1); an inlet pipe opening (7) is provided on the side of the outer wall of the cylinder (2) close to the first seal (1); and a discharge pipe opening (8) is provided on the side of the outer wall of the cylinder (2) close to the second seal (6); The left and right ends of the cylinder (2) are respectively provided with a first protrusion (201) and a second protrusion (202); The contact surfaces of the first sealing head (1) and the first sealed tube sheet (3) are both provided with a first magnetic attraction sheet (301), the contact surfaces of the second sealing head (6) and the second sealed tube sheet (5) are both provided with a second magnetic attraction sheet (501), and the outer walls of the first magnetic attraction sheet (301) and the second magnetic attraction sheet (501) are provided with a heat insulation layer.

2. The easily disassembled and assembled wound heat exchanger according to claim 1, characterized in that: The outer wall of the outlet end of the first head (1) is provided with a first connecting screw plate (101), and the outer wall of the inlet end of the second head (6) is provided with a second connecting screw plate (601).

3. The easily disassembled and assembled wound heat exchanger according to claim 1, characterized in that: The inner wall of the outlet end of the first head (1) is provided with a first recess (102), and the inner wall of the inlet end of the second head (6) is provided with a second recess (602).

4. The easily disassembled and assembled wound heat exchanger according to claim 3, characterized in that: Sealing rubber rings are bonded to the inner walls of the first recess (102) and the second recess (602).

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