CN111578752A

CN111578752A - Self-cleaning barrel-shaped plate heat exchanger

Info

Publication number: CN111578752A
Application number: CN202010602138.4A
Authority: CN
Inventors: 张厚清; 伍照全; 何浩; 方觉舒; 韩晴
Original assignee: Xuancheng Haowei Industrial Technology Co ltd
Current assignee: Xuancheng Haowei Industrial Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-08-25

Abstract

The invention discloses a barrel-shaped plate heat exchanger with self-cleaning capability, which comprises a barrel-shaped equipment shell, an annular heat transfer plate, a transmission motor, a transmission arm and a cleaning brush. The annular heat transfer plate is fixed inside barrel-shaped equipment shell, and the transmission motor is installed and is driven the transmission arm rotation at the equipment top, fixes the cleaning brush with the same height with the heat transfer plate on the transmission arm, and two same cleaning brushes add annular heat transfer plate in the middle. The upper part of the barrel-shaped plate heat exchanger with self-cleaning capability is provided with a material outlet, and the bottom of the barrel-shaped plate heat exchanger is provided with a heat transfer medium inlet, a heat transfer medium outlet and a material inlet. The heat transfer medium enters the annular heat transfer plate to heat/cool the material. The invention has the beneficial effects that: the equipment has low running cost, the barrel-shaped heat exchanger has a self-cleaning function, the barrel-shaped heat exchanger is suitable for high-viscosity and easily-crystallized materials and does not need manual cleaning, the equipment has high heat exchange efficiency, is easy to operate and maintain, has flexible processing capacity and the like.

Description

Self-cleaning barrel-shaped plate heat exchanger

Technical Field

The invention relates to a barrel-shaped plate heat exchanger with self-cleaning capability.

Background

Along with the development of industry, heat exchangers are more and more widely applied, a large amount of manpower and material resources are needed to clean heat exchangers used in industry every year, the heat exchangers can form scales aiming at heat exchange of different materials, attachments are accumulated on the heat exchangers, the heat transfer coefficient is reduced, the heat exchange effect cannot meet the technological requirement, and the heat exchangers are cleaned regularly. The existing heat exchanger is not suitable for processing materials which have high viscosity, are easy to crystallize and are easy to attach to the surface of the heat transfer plate; the heat transfer efficiency is not high because the material is heated or cooled by the material self-flowing without turbulence phenomenon; the existing various heat exchangers have complicated structures and are inconvenient to maintain, and once the heat exchangers are molded, the materials and the processing capacity cannot be adjusted.

At present, the cleaning is mainly as follows: the chemical method, namely acid washing, is to utilize the acidity of weak acid to carry out chemical reaction on dirt in the heat exchanger so as to achieve the purpose of cleaning the heat exchanger; the physical method is cleaning with high pressure water. In any way, cleaning can be carried out only after the system is stopped, so that the utilization rate of the heat exchanger is relatively low, and certain danger exists in acid cleaning or cleaning equipment by using high-pressure water.

Disclosure of Invention

In order to solve the above problems, the present invention provides a barrel-shaped plate heat exchanger having a self-cleaning capability.

In order to achieve the purpose, the technical scheme of the invention is as follows: a barrel-shaped plate heat exchanger with self-cleaning capability comprises a barrel-shaped equipment shell, an annular heat transfer plate group, a transmission motor, a transmission arm, a cleaning brush fixing device, a cleaning brush, a transmission motor supporting bracket, a heat transfer medium inlet, a heat transfer medium outlet, a material inlet, a heat-exchanged material outlet and barrel-shaped plate heat exchanger straight legs with self-cleaning capability. The straight legs of the self-cleaning barrel-shaped plate heat exchanger support the whole equipment. A self-cleaning barrel-shaped plate heat exchanger is formed by combining a plurality of annular heat transfer plates with different circumferences to form an annular heat transfer plate group and is arranged in a barrel-shaped heat exchanger shell. The transmission motor driving the transmission arm to rotate is installed on the transmission motor support at the top of the equipment, the transmission shaft on the transmission motor drives the transmission arm to rotate, and the cleaning brush is installed on the cleaning brush fixing device and cleans the surface of the annular heat transfer plate in the rotating process of the transmission arm. The cleaning brush stirs the material in the equipment at the rotation in-process.

Preferably, each annular heat transfer plate is provided with a flow passage for allowing materials to enter other annular heat transfer plates for heat exchange, and the materials flow in the self-cleaning barrel-shaped plate heat exchanger by self. The annular heat transfer plate is made of heat transfer plates by rolling and is fixed inside the barrel-shaped equipment shell.

Preferably, the cleaning brush sandwiches the annular heat transfer plate. The upper part and the lower part of the fixed arm of the cleaning brush are respectively provided with a temperature transmission device.

Preferably, the transmission motor is started to drive the transmission arm to rotate in the operation process, the cleaning brush on the cleaning brush fixing device is arranged on the transmission arm to clean the surface of the heat transfer plate, and meanwhile, materials in the equipment are disturbed.

Preferably, the barrel-shaped device housing is also made of heat transfer plates. And a material outlet is arranged at the upper part of the barrel-shaped equipment shell, and a heat transfer medium inlet, a heat transfer medium outlet and a material inlet are arranged at the bottom of the barrel-shaped equipment shell.

Compared with the prior art, the invention has the following beneficial effects:

1. self-cleaning function: the material with large viscosity, easy crystallization and easy adhesion on the surface of the heat transfer plate is processed. The speed of different material cleaning brushes can be adjusted according to the requirement;

2. high energy efficiency: the rotation of the cleaning brush enables the fluid to generate turbulence, thereby greatly improving the heat exchange efficiency;

3. easy operation and maintenance: the equipment has simple structure, all the annular heat transfer plates are detachable, and the equipment with self-cleaning function is very easy to maintain and repair;

4. the application is wide: the heat transfer plate groups made of different materials can be adopted according to materials with different properties, and the heat transfer plate group is made of corrosion-resistant materials and can be applied to various corrosion-resistant occasions;

5. the processing capacity is flexible: the size of the equipment and the number of the annular heat transfer plates can be flexibly adjusted according to the actual material handling capacity.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of a rotary cleaning brush according to the present invention;

FIG. 4 is a schematic view of a ring heat transfer plate configuration of the present invention;

fig. 5 is a schematic view of the structure of an annular heat transfer plate pack of the present invention.

Reference numbers in the figures: 1. a material outlet; 2. a barrel-shaped device housing; 3. a heat transfer medium inlet; 4. a material inlet; 5. a heat transfer medium outlet; 6. a cleaning brush; 7. a drive arm; 8. a drive motor; 9. a cleaning brush fixing device; 10. a drive motor support bracket; 11. a straight leg; 12. a drive shaft; 13. a heat transfer medium turbulence node; 14. a heat transfer medium baffle line; 15. a heat transfer medium distribution header; 16. a heat transfer medium inlet manifold; 17. a heat transfer medium collection header; 18. a heat transfer medium outlet manifold; 19. an annular heat transfer plate pack; 20. an annular heat transfer plate; 21. and a temperature transmission device.

Detailed Description

A self-cleaning barrel-shaped plate heat exchanger comprises a barrel-shaped equipment shell 2, an annular heat transfer plate group 19, a transmission motor 8, a transmission arm 7, a transmission shaft 12, a cleaning brush fixing device 9, a cleaning brush 6, a transmission motor supporting bracket 10, a heat transfer medium inlet 3, a heat transfer medium outlet 5, a material inlet 4, a material outlet 1 after heat exchange and a barrel-shaped plate heat exchanger straight leg 11 with self-cleaning capability. Bucket plate heat exchanger of cleaning ability the straight legs 11 of the bucket plate heat exchanger of cleaning ability support the whole apparatus. The annular heat transfer plate group 19 of the barrel-shaped plate heat exchanger with the self-cleaning capacity is fixed inside the barrel-shaped equipment shell 2, the transmission motor 8 is installed on a transmission motor supporting bracket 10 at the top of the equipment, the transmission shaft 12 drives the transmission arm 7 to rotate, the transmission arm 7 is provided with the cleaning brush fixing device 9, the cleaning brush fixing device 9 is provided with the cleaning brush 6 with the same height as the annular heat transfer plate 20, and the two same cleaning brushes 6 are used for adding the annular heat transfer plate 20 in the middle. The annular heat transfer plates 20 leave a flow passage for the free flow of material inside the self-cleaning barrel plate heat exchanger. The annular heat transfer plate 20 is made of a heat transfer plate by rolling and fixed inside the barrel-shaped apparatus casing 2. The cleaning brush 6 sandwiches the annular heat transfer plate 20. Temperature transmission means 21 are installed at the upper and lower portions of the cleaning brush fixing means 9, respectively. In the operation process, the transmission motor 8 is started, the transmission shaft 12 drives the transmission arm 7 to rotate, and the cleaning brush 6 is arranged on the cleaning brush fixing device 9 and cleans the surface of the annular heat transfer plate 20 in the rotation process of the transmission arm 7. The cleaning brush 6 stirs the materials in the equipment in the rotating process to enable the materials to form a turbulent flow state.

The barrel-shaped device housing 2 is also made of heat transfer plates. A heat-exchanged material outlet 1 is arranged at the upper part of the barrel-shaped equipment shell 2, a heat transfer medium inlet 3 and a heat transfer medium outlet 5 are arranged at the bottom of the barrel-shaped equipment shell, a material inlet 4 is arranged at the right middle position of the bottom,

the material enters the self-cleaning barrel-shaped plate heat exchanger from the material inlet 4, the material is discharged from the material outlet 1 at the upper part of the self-cleaning barrel-shaped plate heat exchanger after passing through the annular heat transfer plate 20 and the material flow channels which can not be reserved by the annular heat transfer plate 20 and are uniformly distributed in the material heat exchange channel between the annular heat transfer plates 20 for heat exchange, the heat transfer medium enters the heat transfer medium distribution header pipe 15 from the heat transfer medium inlet 3 at the bottom of the self-cleaning barrel-shaped plate heat exchanger, is distributed into the annular heat transfer plate 20 by the heat transfer medium inlet branch pipe 16 of the annular heat transfer plate 20 for heat exchange, enters the heat transfer medium collection header pipe 17 by the heat transfer medium outlet, in the operation process of the equipment, the transmission motor 8 is started, the transmission shaft 12 drives the transmission arm 7 to rotate, and the cleaning brush fixing device 9 is arranged on the transmission arm 7 and drives the cleaning brush 6 to automatically clean the annular heat exchange plate 21.

The annular heat transfer plate package 19 is composed of a number of annular heat transfer plates 20. The ring heat transfer plate 20 is laser welded and rolled into a ring shape on a special device, the self-cleaning barrel-shaped plate heat exchanger has all the ring heat transfer plates 20 with different circumferential lengths, the ring heat transfer plate 20 outside the barrel-shaped device has the largest circumferential length, and the ring heat transfer plate 20 near the center has the shortest circumferential length. The annular heat transfer plate 20 is provided with a heat transfer medium baffle line 14 and a heat transfer medium flow passage, and the surface of the annular heat transfer plate 20 is uniformly provided with nodes 13 for increasing the turbulence of the heat transfer medium.

Claims

1. The utility model provides a bucket plate heat exchanger of automatically cleaning ability, characterized in that, including bucket equipment shell (2), annular heat transfer plate (20), driving motor (8), driving arm (7) and cleaning brush (6), annular heat transfer plate (20) are fixed inside bucket equipment shell (2), driving motor (8) are installed and are driven driving arm (7) rotation at the equipment top, driving arm (7) are gone up fixed cleaning brush (6) with annular heat transfer plate (20) co-altitude, two same cleaning brush (6) press from both sides annular heat transfer plate (20) in the centre.

2. Barrel-shaped plate heat exchanger with self-cleaning capability according to claim 1, characterized in that the ring-shaped heat transfer plate (20) is provided with a flow passage for free flow of material inside the barrel-shaped plate heat exchanger with self-cleaning capability, the ring-shaped heat transfer plate (20) is made by rolling up a plurality of ring-shaped heat transfer plates (20) of different sizes, which are combined together to form a ring-shaped heat transfer plate group (19) and mounted inside the barrel-shaped device housing (2).

3. Barrel-shaped plate heat exchanger with self-cleaning capability according to claim 1, characterized in that the barrel-shaped device housing (2) is also made of heat transfer plates, and that the material outlet (1) is arranged in the upper part of the barrel-shaped device housing (2), and that the heat transfer medium inlet (3), the heat transfer medium outlet (5) and the material inlet (4) are arranged in the bottom part thereof.

4. Barrel plate heat exchanger with self-cleaning capability according to claim 1, characterized in that the cleaning brush (6) sandwiches the annular heat transfer plate (20) and that temperature transmission means (21) are mounted on the upper and lower parts of the cleaning brush holding means (9), respectively.

5. The barrel shaped plate heat exchanger with self-cleaning capability as claimed in claim 1, wherein the driving motor (8) is started to drive the driving arm (7) to rotate during operation, the cleaning brush (6) on the cleaning brush fixing device (9) mounted on the driving arm (7) automatically cleans the materials adhered on the surface of the annular heat transfer plate (20) to keep clean, and the processed materials are disturbed in the device to improve the heat exchange efficiency.