Volumetric winding pipe heat exchanger

Abstract

The utility model discloses a volumetric winding pipe heat exchanger, which belongs to the technical field of heat exchangers and comprises a plurality of supports, a heat exchange shell is fixedly mounted on the supports, an opening is formed in the upper surface of the heat exchange shell, a heat exchange shell cover is arranged at the opening, and a fluid inlet pipe to be subjected to heat exchange is mounted on the heat exchange shell cover in a penetrating manner. A to-be-heat-exchanged fluid outlet pipe is installed on the lower surface of the heat exchange shell in a penetrating mode, and a plurality of heat exchange medium conveying pipes are installed in the heat exchange shell. A plurality of heat exchange medium conveying pipes which are mutually sleeved together are arranged, the space in each heat exchange medium conveying pipe is divided into a heat exchange medium inflow channel and a heat exchange medium outflow channel in cooperation with a partition plate, the flowing time can be prolonged in a limited space through spiral arrangement, and then the heat exchange efficiency is effectively improved; and a motor and a rotating plate are matched to drive a mounting plate to drive a cleaning brush to rotate, the heat exchange medium conveying pipe can be cleaned through rotation of the cleaning brush, and it is avoided that incrustation is attached to the surface of the heat exchange medium conveying pipe and influences the heat exchange efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, specifically relating to a volumetric wound tube heat exchanger. Background Technology

[0002] A heat exchanger, also known as a heat exchange device or heat exchange equipment, is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to their operating process, they can be divided into indirect-flow type, mixing type, and regenerative type.

[0003] Chinese Patent (Application No.: CN201721882937.1) provides a volumetric spiral wound tube heat exchanger, including a tripod, a tank, a buffer mechanism, a drive mechanism, and a piping mechanism. The tank is provided with a sealing assembly, which includes a tank door, a seal, and several screws. The buffer mechanism includes a first buffer box and a second buffer box. The drive mechanism includes a motor and a central shaft. The piping mechanism includes a fifth connecting pipe, a sixth connecting pipe, a seventh connecting pipe, a spiral tube, and a spiral sealing pipe. More spiral tubes are arranged inside the tank for heat exchange, improving space utilization efficiency. The rotation of the spiral tubes during heat exchange also enhances heat exchange efficiency. A sealable tank door facilitates maintenance of the internal components and ensures no leakage of the heated fluid. It also avoids mixing between the heat exchange medium and the heated fluid that may occur due to rotation. A drive mechanism increases the turbulence of the heated fluid to improve heat exchange efficiency. However, during operation, the spiral tubes are driven by a central shaft, and the threaded connection between the central shaft and the spiral tubes makes them prone to loosening and falling off during rotation. Additionally, scale buildup on the spiral tube surface requires subsequent cleaning by opening the tank door, which is inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a volumetric spiral tube heat exchanger to solve the problems mentioned in the background art, which are that heat exchange is carried out by driving the spiral tube through the central shaft during use, the central shaft and the spiral tube are connected by threads and assembled, the threads are prone to loosening and falling off during rotation, and the spiral tube is difficult to achieve an effective heat exchange effect when rotating. At the same time, the scale adhering to the surface of the spiral tube needs to be cleaned by opening the tank door later, which is inconvenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a volumetric wound tube heat exchanger, comprising several supports, on which a heat exchange shell is fixedly installed. The upper surface of the heat exchange shell has an opening, and a heat exchange shell cover is provided at the opening. An inlet pipe for the fluid to be exchanged is installed through the heat exchange shell cover. An outlet pipe for the fluid to be exchanged is installed through the lower surface of the heat exchange shell. Several heat exchange medium conveying pipes are installed inside the heat exchange shell. A partition is fixed to the inner wall of each heat exchange medium conveying pipe, and the partition divides the internal space of the heat exchange medium conveying pipe into a lower heat exchange medium inlet channel and an upper heat exchange medium... The heat exchange medium has an outlet channel, and the partition plate has a connecting port for connecting the heat exchange medium inlet channel and the heat exchange medium outlet channel. The outer surface of the heat exchange medium conveying pipe is provided with an input connecting pipe connected to the heat exchange medium inlet channel. The end of the heat exchange medium conveying pipe is provided with an output connecting pipe connected to the heat exchange medium outlet channel. A motor is fixed on the upper surface of the heat exchange shell cover. The output shaft of the motor extends into the heat exchange shell and is fixed with a rotating plate. Several mounting plates are fixed on the lower surface of the rotating plate. A cleaning brush is detachably installed on the side of the mounting plate. The bristles of the cleaning brush are used in conjunction with the surface of the heat exchange medium conveying pipe.

[0006] In the above scheme, it should be noted that the motor is electrically connected to an external power supply.

[0007] In a preferred embodiment, mounting rings are fixedly installed on the outer surface of the heat exchange shell and the outer surface of the heat exchange shell cover, and a plurality of mounting bolts are threaded between the two mounting rings.

[0008] Using the above solution, the two mounting rings can be assembled and fixed by using mounting rings in conjunction with mounting bolts, thereby realizing the assembly and fixing of the heat exchange shell and the heat exchange shell cover, which is convenient to operate.

[0009] In a preferred embodiment, a sealing element is provided between the upper surface of the heat exchange shell and the lower surface of the heat exchange shell cover. The sealing element includes an integrally formed horizontal sealing ring and a raised sealing ring.

[0010] By adopting the above solution, the use of an integrally molded horizontal sealing ring and a raised sealing ring ensures good sealing characteristics between the heat exchange shell and the heat exchange shell cover, thus preventing leakage.

[0011] In a preferred embodiment, the heat exchange medium conveying pipe is specifically spiral in shape, and several spiral heat exchange medium conveying pipes are nested together.

[0012] By adopting the above scheme and setting up a spiral heat exchange medium delivery pipe, the flow residence time of the heat exchange medium is effectively extended within the limited internal space of the heat exchange shell, thereby greatly improving the heat exchange efficiency.

[0013] In a preferred embodiment, the mounting plate has a trapezoidal slot on its side, and the cleaning brush has a trapezoidal insert fixed to its side. The trapezoidal insert and the trapezoidal slot work together, and the mounting plate is provided with a positioning unit.

[0014] The above solution utilizes a trapezoidal insert plate in conjunction with a trapezoidal slot to prevent the cleaning brush from detaching from the mounting plate, and uses a positioning unit for locking, resulting in a good locking effect.

[0015] In a preferred embodiment, the positioning unit includes a plurality of positioning bolts threaded onto the side of the mounting plate, the tail ends of which pass through the mounting plate and are threadedly connected to the threaded groove on the side of the trapezoidal insert plate.

[0016] The above solution uses positioning bolts to lock the mounting plate and trapezoidal insert plate. The locking structure is simple and facilitates later disassembly and maintenance.

[0017] In a preferred embodiment, several input connecting pipes extend through the heat exchange shell and are connected to the same heat exchange medium inlet pipe, and several output connecting pipes extend through the heat exchange shell and are connected to the same heat exchange medium outlet pipe.

[0018] Using the above scheme, multiple input connecting pipes are connected to a single heat exchange medium inlet pipe, and multiple output connecting pipes are connected to a single heat exchange medium outlet pipe, thus avoiding the need to install multiple pipes for input and output.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This volumetric spiral tube heat exchanger uses multiple interlocking heat exchange medium delivery pipes, with baffles dividing the space inside the heat exchange medium delivery pipes into heat exchange medium inlet and outlet channels. The spiral arrangement can extend the flow time in a limited space, thereby effectively improving heat exchange efficiency. In addition, the motor and rotating plate drive the mounting plate to rotate the cleaning brush, which can clean the heat exchange medium delivery pipes and prevent scale from adhering to the surface of the heat exchange medium delivery pipes, thus affecting the heat exchange efficiency.

[0021] This volumetric spiral tube heat exchanger uses a heat exchange shell and a heat exchange shell cover in conjunction with a mounting ring and mounting bolts, and can be used with positioning bolts and a mounting plate to facilitate the disassembly and replacement of the internally worn cleaning brush after the operation is completed. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a structural schematic diagram of the heat exchange shell and heat exchange shell cover of this utility model in cross-section;

[0024] Figure 3 This is a schematic diagram of the structure of the sealing element of this utility model;

[0025] Figure 4 This is a schematic diagram of the cross-section of the heat exchange medium conveying pipe of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the rotating plate and mounting plate of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the mounting plate and cleaning brush of this utility model.

[0028] In the diagram: 1. Support; 2. Heat exchanger shell; 3. Heat exchanger shell cover; 4. Inlet pipe for the fluid to be exchanged; 5. Outlet pipe for the fluid to be exchanged; 6. Heat exchange medium conveying pipe; 7. Baffle plate; 8. Heat exchange medium inlet channel; 9. Heat exchange medium outlet channel; 10. Input connecting pipe; 11. Heat exchange medium inlet pipe; 12. Output connecting pipe; 13. Heat exchange medium outlet pipe; 14. Motor; 15. Rotating plate; 16. Mounting plate; 17. Cleaning brush; 18. Mounting ring; 19. Mounting bolt; 20. Seal; 21. Positioning bolt; 22. Trapezoidal insert plate; 23. Horizontal sealing ring; 24. Raised sealing ring. Detailed Implementation

[0029] Please see Figure 1-6 This utility model provides a volumetric spiral wound tube heat exchanger, including several supports 1. A heat exchange shell 2 is fixedly installed on the supports 1. The upper surface of the heat exchange shell 2 has an opening and a heat exchange shell cover 3 is provided at the opening. Mounting rings 18 are fixedly installed on the outer surface of the heat exchange shell 2 and the outer surface of the heat exchange shell cover 3. Several mounting bolts 19 are threaded between two mounting rings 18. By using the mounting rings 18 in conjunction with the mounting bolts 19, the two mounting rings 18 can be assembled and fixed, thereby realizing the assembly and fixing operation of the heat exchange shell 2 and the heat exchange shell cover 3. The operation is convenient.

[0030] A sealing element 20 is provided between the upper surface of the heat exchange shell 2 and the lower surface of the heat exchange shell cover 3. The sealing element 20 includes an integrally formed horizontal sealing ring 23 and a raised sealing ring 24. The integrally formed horizontal sealing ring 23 and the raised sealing ring 24 work together to ensure good sealing characteristics between the heat exchange shell 2 and the heat exchange shell cover 3 and prevent leakage.

[0031] A heat exchanger shell cover 3 has an inlet pipe 4 for the fluid to be exchanged installed through it, and a heat exchanger shell 2 has an outlet pipe 5 for the fluid to be exchanged installed through it on its lower surface. Several heat exchanger medium conveying pipes 6 are installed inside the heat exchanger shell 2. The heat exchanger medium conveying pipes 6 are specifically spiral in shape, and several spiral heat exchanger medium conveying pipes 6 are nested together. By setting the spiral heat exchanger medium conveying pipes 6, the flow residence time of the heat exchanger medium is effectively extended within the limited internal space of the heat exchanger shell 2, thereby greatly improving the heat exchange efficiency.

[0032] A partition 7 is fixed to the inner wall of the heat exchange medium conveying pipe 6. The partition 7 divides the internal space of the heat exchange medium conveying pipe 6 into a lower heat exchange medium inlet channel 8 and an upper heat exchange medium outlet channel 9. A connecting port for connecting the heat exchange medium inlet channel 8 and the heat exchange medium outlet channel 9 is provided on the partition 7. An input connecting pipe 10 connected to the heat exchange medium inlet channel 8 is provided on the outer surface of the heat exchange medium conveying pipe 6. An output connecting pipe 12 connected to the heat exchange medium outlet channel 9 is provided at the end of the heat exchange medium conveying pipe 6. A motor 14 is fixed on the upper surface of the heat exchange shell cover 3. The output shaft of the motor 14 extends into the heat exchange shell 2 and is fixed with a rotating plate 15. Several mounting plates 16 are fixed on the lower surface of the rotating plate 15. A cleaning brush 17 is detachably installed on the side of the mounting plate 16. The bristles of the cleaning brush 17 are used in conjunction with the surface of the heat exchange medium conveying pipe 6.

[0033] The mounting plate 16 has a trapezoidal slot on its side, and the cleaning brush 17 has a trapezoidal insert plate 22 fixed on its side. The trapezoidal insert plate 22 and the trapezoidal slot work together. The mounting plate 16 is equipped with a positioning unit. The trapezoidal insert plate 22 works with the trapezoidal slot to prevent the cleaning brush 17 from falling off the mounting plate 16. The positioning unit is used to lock the brush, which has a good locking effect.

[0034] The positioning unit includes several positioning bolts 21 threaded onto the side of the mounting plate 16. The tail end of the positioning bolt 21 passes through the mounting plate 16 and is threadedly connected to the threaded groove on the side of the trapezoidal insert plate 22. The positioning bolts 21 are used to lock the mounting plate 16 and the trapezoidal insert plate 22. The locking structure is simple and easy to disassemble and maintain later.

[0035] Several input connecting pipes 10 extend through the heat exchange shell 2 and are connected to the same heat exchange medium inlet pipe 11. Several output connecting pipes 12 extend through the heat exchange shell 2 and are connected to the same heat exchange medium outlet pipe 13. Multiple input connecting pipes 10 are connected to one heat exchange medium inlet pipe 11, and multiple output connecting pipes 12 are connected to one heat exchange medium outlet pipe 13, thus avoiding the need to install multiple pipes for input and output.

[0036] During use, the fluid to be heat exchanged enters the heat exchange shell 2 through the inlet pipe 4, and the heat exchange medium enters through the inlet pipe 11, passes through the inlet connecting pipe 10, enters the heat exchange medium inlet channel 8 in the heat exchange medium delivery pipe 6, enters the heat exchange medium outlet channel 9 through the flow port on the partition 7, and is then transported to the heat exchange medium outlet pipe 13 through the outlet connecting pipe 12 for discharge. During this process, the fluid to be heat exchanged exchanges heat with the heat exchange medium. After heat exchange, the fluid to be heat exchanged is discharged from the outlet pipe 5. At the same time, during the heat exchange process, the motor 14 drives the rotating plate 15 to rotate. The rotating plate 15 drives the cleaning brush 17 to rotate through the mounting plate 16. The cleaning brush 17 cleans the surface of the heat exchange medium delivery pipe 6 to prevent scale and impurities from affecting the heat exchange efficiency. After the heat exchange is completed, the mounting bolt 19 can be unscrewed and the heat exchange shell cover 3 can be pulled upwards to remove the cleaning brush 17 from the heat exchange shell 2. The cleaning brush 17 can be slid off by unscrewing the positioning bolt 21 for replacement and maintenance.

Claims

1. A volumetrically wound pipe heat exchanger comprising a number of supports (1), characterised in that: The support (1) is fixedly installed with a heat exchange shell (2), the upper surface of the heat exchange shell (2) is provided with an opening and is provided with a heat exchange shell cover (3), the heat exchange shell cover (3) is installed with a heat exchange fluid inlet pipe (4), the lower surface of the heat exchange shell (2) is installed with a heat exchange fluid outlet pipe (5), the heat exchange shell (2) is installed with a plurality of heat exchange medium conveying pipes (6), the inner wall of the heat exchange medium conveying pipe (6) is fixedly provided with a partition plate (7), the partition plate (7) divides the heat exchange medium conveying pipe (6) into a heat exchange medium inflow channel (8) and a heat exchange medium outflow channel (9), the partition plate (7) is provided with a communication port for communicating the heat exchange medium inflow channel (8) and the heat exchange medium outflow channel (9), the outer surface of the heat exchange medium conveying pipe (6) is provided with an input communication pipe (10) connected with the heat exchange medium inflow channel (8), the end of the heat exchange medium conveying pipe (6) is provided with an output communication pipe (12) connected with the heat exchange medium outflow channel (9), the upper surface of the heat exchange shell cover (3) is fixedly provided with a motor (14), the output shaft of the motor (14) extends into the heat exchange shell (2) and is fixedly provided with a rotating plate (15), the lower surface of the rotating plate (15) is fixedly provided with a plurality of mounting plates (16), the side surface of the mounting plate (16) is detachably provided with a cleaning brush (17), and the bristle part of the cleaning brush (17) is used in cooperation with the surface of the heat exchange medium conveying pipe (6).

2. The positive displacement, coiled tube heat exchanger of claim 1, wherein: The outer surface of the heat exchange shell (2) and the outer surface of the heat exchange shell cover (3) are fixedly installed with mounting rings (18), and a plurality of mounting bolts (19) are threadedly installed between the two mounting rings (18).

3. The positive displacement, coiled tube heat exchanger of claim 1, wherein: The upper surface of the heat exchange shell (2) and the lower surface of the heat exchange shell cover (3) are provided with a sealing element (20), and the sealing element (20) comprises an integrally formed horizontal sealing ring (23) and a protruding sealing ring (24).

4. The positive displacement, coiled tube heat exchanger of claim 1, wherein: The shape of the heat exchange medium conveying pipe (6) is spiral, and a plurality of spiral heat exchange medium conveying pipes (6) are sleeved with each other.

5. The positive displacement, coiled tube heat exchanger of claim 1, wherein: The side surface of the mounting plate (16) is provided with a trapezoidal insertion slot, the side surface of the cleaning brush (17) is fixedly provided with a trapezoidal insertion plate (22), the trapezoidal insertion plate (22) and the trapezoidal insertion slot are used in cooperation, and the mounting plate (16) is provided with a positioning unit.

6. The positive displacement, coiled tube heat exchanger of claim 5, wherein: The positioning unit comprises a plurality of positioning bolts (21) which are threadedly installed on the side surface of the mounting plate (16), and the tail end of the positioning bolt (21) is threadedly connected between the mounting plate (16) and the threaded groove formed in the side surface of the trapezoidal insertion plate (22).

7. The positive displacement, coiled tube heat exchanger of claim 1, wherein: A plurality of input communication pipes (10) extend through the heat exchange shell (2) and are connected with the same heat exchange medium inlet pipe (11), and a plurality of output communication pipes (12) extend through the heat exchange shell (2) and are connected with the same heat exchange medium outlet pipe (13).

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