Winding heat exchanger with detachable tube bundle

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a tube bundle detachable winding heat exchanger which comprises a shell, an upper mounting flange is arranged at the top end of the shell, a lower mounting flange is arranged at the bottom end of the shell, an upper tube plate and a lower tube plate are arranged in the shell, the outer diameter of the upper tube plate is smaller than the inner diameter of the shell, and the outer diameter of the lower tube plate is smaller than the inner diameter of the shell. A first sealing ring is embedded in the outer surface of the upper tube plate, the outer diameter of the lower tube plate is the same as the outer diameter of the sealing size of the lower mounting flange, a second sealing ring is embedded in the end of the shell, a detachable upper sealing head part is arranged at the top end of the shell, and a detachable lower sealing head part is arranged at the bottom end of the shell. The detachable upper end socket piece and the detachable lower end socket piece are arranged so that workers can conveniently overhaul the interior of the shell, the outer diameter of the upper tube plate is smaller than the inner diameter of the shell, the outer diameter of the lower tube plate is the same as the outer diameter of the sealing size of the lower installation flange, and a tube bundle in the shell can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a tube bundle detachable winding heat exchanger. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid for cooling, also known as a heat exchanger; heat exchangers play an important role in many industrial productions such as chemical industry, petroleum, power, food, and others; a spiral winding heat exchanger includes a cylindrical shell, a joint, and a core tube sleeved with a winding tube bundle.

[0003] After retrieval, as disclosed in a spiral winding heat exchanger with a sewage discharge function with the application number 202222881409.1, which relates to the technical field of heat exchangers, specifically a spiral winding heat exchanger with a sewage discharge function, including a heat exchange cylinder, a second liquid inlet pipe is arranged at one end of the heat exchange cylinder, a second liquid outlet pipe is arranged at the other end of the heat exchange cylinder, a spiral pipe is arranged between the second liquid inlet pipe and the second liquid outlet pipe, a first liquid inlet pipe is arranged on the heat exchange cylinder, a filtering component is arranged on the first liquid inlet pipe, a flange is installed on the first liquid inlet pipe through the filtering component, and a first liquid outlet pipe is arranged at the other end of the heat exchange cylinder. When the utility model conveys cooling water, the cooling water will pass through the middle of the installation sleeve at this time, and because a filter screen is arranged on the inner wall of the installation sleeve, the cooling water will be filtered before entering the heat exchange cylinder, which can prevent foreign matters in the cooling water from entering the heat exchange cylinder and affecting the heat exchange efficiency.

[0004] However, the above method still has the following defects in actual use: the cylindrical shell, the joint, and the core tube in the spiral winding heat exchanger are generally welded together to form a whole, and the tube bundle inside cannot be disassembled and assembled. When the heat exchanger has an abnormality, it is not convenient for the staff to repair it. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a tube bundle detachable winding heat exchanger, which has the effect of being convenient for disassembling and assembling the tube bundle inside the shell.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: the tube bundle detachable winding heat exchanger includes a shell, an upper mounting flange is arranged at the top end of the shell, a lower mounting flange is arranged at the bottom end of the shell, an upper tube plate and a lower tube plate are arranged inside the shell, the outer diameter of the upper tube plate is smaller than the inner diameter of the shell, a sealing ring I is embedded on the outer surface of the upper tube plate, the outer diameter of the lower tube plate is the same as the sealing dimension outer diameter of the lower mounting flange, a sealing ring II is embedded at the end of the shell, a detachable upper head piece is arranged at the top end of the shell, and a detachable lower head piece is arranged at the bottom end of the shell.

[0007] A further setting of the present utility model is that: a central pipe is provided between the upper tube sheet and the lower tube sheet, and a heat exchange tube is wound around the surface of the central pipe.

[0008] A further setting of the present utility model is that: a support pipe connected to the middle parts of the upper tube sheet and the lower tube sheet is provided at the end of the central pipe.

[0009] A further setting of the present utility model is that: the upper head part includes an upper elliptical head, a lower connecting flange connected to the upper mounting flange is provided at the bottom end of the upper elliptical head, and a heat medium inlet pipe is provided at the top end of the upper elliptical head.

[0010] A further setting of the present utility model is that: the lower head part includes a lower elliptical head, a lower connecting flange connected to the lower mounting flange is provided at the top end of the lower elliptical head, and a heat medium outlet pipe is provided at the bottom end of the lower elliptical head.

[0011] A further setting of the present utility model is that: the upper mounting flange and the upper connecting flange, and the lower mounting flange and the lower connecting flange are connected by bolts and nuts.

[0012] A further setting of the present utility model is that: a refrigerant outlet pipe is provided at the top of one side of the shell, and a refrigerant inlet pipe is provided at the bottom of one side of the shell.

[0013] In summary, the present utility model has the following beneficial effects: the detachable upper head part and lower head part provided in the present utility model facilitate the staff to overhaul the inside of the shell, and the outer diameter of the upper tube sheet is smaller than the inner diameter of the shell, and the outer diameter of the lower tube sheet is the same as the outer diameter of the sealing dimension of the lower mounting flange, which is convenient for disassembling and assembling the tube bundle inside the shell. At the same time, a first sealing ring is embedded on the surface of the upper tube sheet and a second sealing ring is embedded at the end of the shell, improving the sealing performance at the installation place. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a partial sectional structural diagram of the present utility model;

[0016] Figure 3 is of the present utility model Figure 2 enlarged structural diagram at A.

[0017] In the figure: 1. Housing; 101. Upper mounting flange; 102. Lower mounting flange; 2. Upper head piece; 201. Upper elliptical head; 202. Upper connecting flange; 203. Heat medium inlet pipe; 3. Lower head piece; 301. Lower elliptical head; 302. Lower connecting flange; 303. Heat medium outlet pipe; 4. Refrigerant outlet pipe; 5. Refrigerant inlet pipe; 6. Upper tube sheet; 7. Lower tube sheet; 8. Central tube; 9. Heat exchange tube; 10. Seal ring one; 11. Seal ring two. Specific embodiments

[0018] The following will further illustrate the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0019] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, a tube bundle detachable winding heat exchanger includes a housing 1. A refrigerant outlet pipe 4 is provided at the top on one side of the housing 1 to discharge the heat-exchanged refrigerant. A refrigerant inlet pipe 5 is provided at the bottom on one side of the housing 1 to input the refrigerant into the interior of the housing 1 through it for heat exchange. An upper mounting flange 101 is provided at the top end of the housing 1, and a lower mounting flange 102 is provided at the bottom end of the housing 1;

[0020] An upper tube sheet 6 and a lower tube sheet 7 are provided inside the housing 1. The outer diameter of the upper tube sheet 6 is smaller than the inner diameter of the housing 1, so that the upper tube sheet 6 can be installed into its interior from the bottom end of the housing 1. A seal ring one 10 is embedded on the outer surface of the upper tube sheet 6. The seal ring one 10 is made of fluororubber material. Through the seal ring one 10, the upper tube sheet 6 and the housing 1 are closely attached to improve the sealing performance. The outer diameter of the lower tube sheet 7 is the same as the outer diameter of the sealing dimension of the lower mounting flange 102. When the upper tube sheet 6 is installed into the interior of the housing 1, the lower tube sheet 7 is closely attached to the outer side surface of the lower mounting flange 102 at the bottom end of the housing 1 to limit its position. A central tube 8 is provided between the upper tube sheet 6 and the lower tube sheet 7. Heat exchange tubes 9 are wound on the surface of the central tube 8. A seal ring two 11 is embedded at the end of the housing 1. The seal ring two 11 is made of fluororubber material to improve the sealing performance of the connection between the housing 1 and the upper head piece 2 and the lower head piece 3. A detachable upper head piece 2 is provided at the top end of the housing 1, and a detachable lower head piece 3 is provided at the bottom end of the housing 1, so that the upper head piece 2 and the lower head piece 3 can be disassembled to disassemble and assemble the tube bundle inside;

[0021] In this embodiment, preferably, a support tube connected to the middle parts of the upper tube sheet 6 and the lower tube sheet 7 is provided at the end of the central tube 8. An installation disk is provided at the end of the support tube, and the installation disk is connected to the upper tube sheet 6 and the lower tube sheet 7 through fixing screws;

[0022] In this embodiment, preferably, the upper head member 2 includes an upper elliptical head 201. At the bottom end of the upper elliptical head 201, there is an upper connecting flange 202 connected to the upper mounting flange 101, enabling the upper elliptical head 201 to be installed at the top end of the housing 1. At the top end of the upper elliptical head 201, there is a heat medium inlet pipe 203, through which the heat medium enters;

[0023] In this embodiment, preferably, the lower head member 3 includes a lower elliptical head 301. At the top end of the lower elliptical head 301, there is a lower connecting flange 302 connected to the lower mounting flange 102, enabling the lower elliptical head 301 to be installed at the bottom end of the housing 1. At the bottom end of the lower elliptical head 301, there is a heat medium outlet pipe 303, through which the heat medium after heat exchange can be discharged;

[0024] In this embodiment, preferably, the upper mounting flange 101 and the upper connecting flange 202, as well as the lower mounting flange 102 and the lower connecting flange 302, are connected by bolts and nuts, facilitating the quick disassembly and assembly of the upper head member 2 and the lower head member 3.

[0025] During use, first, the upper connecting flange 202 of the upper elliptical head 201 is connected to the upper mounting flange 101 of the housing 1 through bolts and nuts. Then, the tube bundle with the upper tube sheet 6, lower tube sheet 7, central tube 8, and heat exchange tubes 9 is installed inside the housing 1. The outer diameter of the upper tube sheet 6 is smaller than the inner diameter of the housing 1, enabling the lower tube sheet 7 to enter from the bottom end of the housing 1. At the same time, a first sealing ring 10 provided on the surface of the lower tube sheet 7 improves the sealing between the lower tube sheet 7 and the inner wall of the housing 1. Moreover, the outer diameter of the lower tube sheet 7 is the same as the outer diameter of the sealing dimension of the lower mounting flange 102, so that the lower tube sheet 7 is placed outside the housing 1 and fits against the outside of the lower mounting flange 102. Then, the lower connecting flange 302 of the lower elliptical head 301 is connected to the lower mounting flange 102 of the housing 1 through bolts and nuts, thereby fixing the tube bundle inside the housing 1. And a second sealing ring 11 provided at the end of the housing 1 can improve the sealing of the connection between the upper head member 2 and the lower head member 3 and the housing 1;

[0026] When it is necessary to disassemble the tube bundle inside the housing 1, only the lower head member 3 needs to be disassembled, and the tube bundle with the upper tube sheet 6, lower tube sheet 7, central tube 8, and heat exchange tubes 9 is taken out from the bottom end of the housing 1, then the tube bundle can be repaired and cleaned.

[0027] The above is only the preferred embodiment of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A detachable tube bundle wound heat exchanger, comprising a shell (1), wherein the top end of the shell (1) is provided with an upper mounting flange (101), and the bottom end of the shell (1) is provided with a lower mounting flange (102), characterized in that: An upper tube plate (6) and a lower tube plate (7) are provided inside the shell (1); the outer diameter of the upper tube plate (6) is smaller than the inner diameter of the shell (1); a sealing ring 1 (10) is embedded in the outer surface of the upper tube plate (6); the outer diameter of the lower tube plate (7) is the same as the outer diameter of the sealing dimension of the lower mounting flange (102); a sealing ring 2 (11) is embedded at the end of the shell (1); a detachable upper head component (2) is provided at the top end of the shell (1); and a detachable lower head component (3) is provided at the bottom end of the shell (1).

2. The tube bundle detachable wound heat exchanger according to claim 1 is characterized in that: A central tube (8) is provided between the upper tube plate (6) and the lower tube plate (7), and a heat exchange tube (9) is wound around the surface of the central tube (8).

3. The detachable tube bundle wound heat exchanger according to claim 2 is characterized in that: The ends of the central tube (8) are provided with support tubes connected to the middle parts of the upper tube plate (6) and the lower tube plate (7).

4. The detachable tube bundle wound heat exchanger according to claim 1 is characterized in that: The upper head member (2) comprises an upper elliptical head (201), the bottom end of the upper elliptical head (201) is provided with an upper connecting flange (202) connected to the upper mounting flange (101), and the top end of the upper elliptical head (201) is provided with a heat medium inlet pipe (203).

5. The tube bundle detachable wound heat exchanger according to claim 4 is characterized in that: The lower head member (3) comprises a lower elliptical head (301), the top end of the lower elliptical head (301) is provided with a lower connecting flange (302) connected to the lower mounting flange (102), and the bottom end of the lower elliptical head (301) is provided with a heat medium outlet pipe (303).

6. The detachable tube bundle wound heat exchanger according to claim 5 is characterized in that: The upper mounting flange (101) and the upper connecting flange (202) as well as the lower mounting flange (102) and the lower connecting flange (302) are connected via bolts and nuts.

7. The detachable tube bundle wound heat exchanger according to claim 1 is characterized in that: A refrigerant outlet pipe (4) is provided at the top of one side of the shell (1), and a refrigerant inlet pipe (5) is provided at the bottom of one side of the shell (1).

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