Sweating device and sweating method of vertical shell-and-tube heat exchanger structure

A vertical tube and heat exchanger technology, applied in the chemical industry, can solve the problems of long production cycle and small processing capacity of natural sweating, and achieve the effects of shortening the experimental period, increasing the processing capacity and improving the heat transfer efficiency.

Pending Publication Date: 2022-03-18
INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing capacity per unit volume is small, and the production cycle of natural sweating is long

Method used

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  • Sweating device and sweating method of vertical shell-and-tube heat exchanger structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In this embodiment, a single sweating device is used. The inner diameter of the shell of the sweating device is 1m, the inner diameter of the tubes is 15cm, the number of inner tubes is 80, and the height of the sweating device is 2m.

[0054] When using this device to perform sweating treatment on 60# wax (melting point 62.5°C), first put heat transfer oil into the tubes and jackets of the sweating device, set a unified temperature control program, and then add water to the water inlet. When water overflows from the dividing plate to the water outlet, it stops. Melt the 60# wax and add it from the feed port. Because the density is lower than water, the 60# wax floats on the water surface. Stop feeding when the 60# wax starts to overflow from the overflow port. The temperature is lowered to 25°C by heat conduction oil, and after the wax is fully crystallized, drain water at the discharge port, and the solid 60# wax is supported on the mesh separator. The temperature i...

Embodiment 2

[0057] In this example, 10 sweating devices are used in parallel. The inner diameter of the shell of the sweating device is 0.75m, the inner diameter of the tubes is 10cm, the number of inner tubes is 60, and the height of the sweating device is 2m.

[0058] When using this device to sweat wax with a melting point of 72°C, first put heat-conducting oil into the tubes and jackets of the sweating device, set a unified temperature control program, and then add water to the water inlet until the water surface exceeds the mesh partition to the outlet Stop when there is water overflow in the nozzle. Melt the wax and add it from the feed port. Since the density is lower than water, 70# wax floats on the water surface. Stop feeding after the 70# wax starts to overflow from the overflow port. The temperature is lowered to 35°C by heat conduction oil, and after the wax is fully crystallized, drain water at the outlet, and the solid 70# wax is supported on the mesh separator. Program h...

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Abstract

According to the sweating device and sweating method of the vertical shell-and-tube heat exchanger structure, the sweating device comprises a shell and a plurality of vertical shell tubes located in the shell, a feeding port is formed in the side wall of the upper portion of the shell, a discharging port is formed in the bottom of the shell, and the vertical shell tubes are arranged in the discharging port. Two ends of the vertical tube nest are respectively communicated with the heat transfer medium inlet and the heat transfer medium outlet, a horizontal net-shaped partition plate is arranged in the lower cavity of the shell, the vertical tube nest penetrates through the net-shaped partition plate, and a water inlet is formed in the side wall below the net-shaped partition plate.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a sweating device and a sweating method with a vertical tube heat exchanger structure. Background technique [0002] Although sweating deoiling is inferior to solvent deoiling in terms of deoiling efficiency, single-pass yield and continuous production, due to its advantages of environmental protection, simple equipment operation, low investment and low energy consumption, some paraffin wax and Fischer-Tropsch wax production at home and abroad are currently Manufacturers are still using the sweating method. [0003] Among the existing sweating devices, large-scale circular sweating boxes and box-type sweating boxes have been designed. The equipment has a simple structure, but the equipment is bulky and the output per unit volume is low. [0004] In the existing tubular paraffin deoiling device, the paraffin goes through the tube side, and the heat transfer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G73/42F28D21/00
CPCC10G73/42F28D21/00
Inventor 苗恒钱震郑会月马国清李俊诚菅青娥郭良兰周岩秦艳王彩丽韩飞
Owner INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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