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Horizontal fluidized bed heat exchanger enabling particles to pass through shell side

A technology of fluidized bed heat exchanger and shell-and-tube heat exchanger, which is applied in the chemical industry and can solve the problems of easy fouling on the shell side

Active Publication Date: 2019-04-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the problem that the shell side of the horizontal shell-and-tube heat exchanger is easy to foul in the prior art, and a horizontal fluidized bed heat exchanger with particles passing through the shell side is provided

Method used

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  • Horizontal fluidized bed heat exchanger enabling particles to pass through shell side
  • Horizontal fluidized bed heat exchanger enabling particles to pass through shell side
  • Horizontal fluidized bed heat exchanger enabling particles to pass through shell side

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] use figure 1 The horizontal fluidized bed heat exchanger with the particles passing the shell side as shown is experimentally investigated by using the above-mentioned method of descaling the shell side of the horizontal shell-and-tube heat exchanger. The tube side is arranged horizontally, and the shell side is inclined downward. , forming an angle of 15° with the horizontal, the inlet and outlet of the shell side are close to the left and right heads of the heat exchanger, the particles go through the shell side from bottom to top, and the inner wall of the shell side is evenly coated with 600g of gray scale. The gas phase purge inlet is installed on the lower side of the shell side of the heat exchanger, and the gas phase purge outlet is installed on the upper side of the heat exchanger shell side. Both the gas phase purge inlet and the gas phase purge outlet are as figure 2 25 sub-pipes are arranged in 5×5 as shown, the diameter of the sub-pipes is 0.5mm, and the d...

Embodiment 2～14

[0030] Using the same horizontal fluidized bed heat exchanger with particles going to the shell side as in Example 1, and using the same horizontal shell-and-tube heat exchanger as in Example 1 to carry out experimental investigations, the tube-side tubes Arranged horizontally, the shell side is inclined downward, the inlet and outlet of the shell side are close to the left and right heads of the heat exchanger, the particles go through the shell side from bottom to top, and the inner wall of the shell side is evenly coated with 600g of gray scale. The gas phase purge inlet is installed on the lower side of the shell side of the heat exchanger, and the gas phase purge outlet is installed on the upper side of the heat exchanger shell side. Both the gas phase purge inlet and the gas phase purge outlet are as figure 2 25 branch pipes are arranged in 5×5 as shown. Change the angle (angle) between the shell side and the horizontal, the pipe diameter (pipe diameter) and pipe distan...

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Abstract

The invention relates to a horizontal fluidized bed heat exchanger enabling particles to pass through a shell side, and mainly solves the technical problem of blockage of the shell side of the heat exchanger. The technical problem is solved well by adopting the following technical scheme: the horizontal fluidized bed heat exchanger enabling particles to pass through the shell side comprises a charge port 1, a charge tank 2, a horizontal heat exchanger 3, the shell side 4 of the heat exchanger, a gas-phase purging inlet 5, a gas-phase purging outlet 6, a liquid-solid separator 7, a particle washing groove 8, a filter screen 9, a descending pipe 10, a nozzle 11, a horizontal pipe 12, an impurity recovery port 13, a liquid-phase groove 14 and a pump 15, wherein the outlet of the shell side 4is connected with the liquid-solid separator 7; the particles enter the descending pipe 10 via the particle washing groove 8 from the liquid-solid separator 7, and are conveyed back to the shell side4 of the heat exchanger by virtue of the nozzle 11 and the pump 15; impurities are recovered from the impurity recovery port 13; a liquid phase is discharged from the liquid-solid separator 7 and thenenters the liquid-phase groove 14 to be circulated; and a gas phase enters from the gas purging inlet 5 and is discharged from the gas-phase purging outlet 6. The horizontal fluidized bed heat exchanger enabling particles to pass through the shell side can be used for scale prevention and removal for the horizontal shell-and-tube heat exchanger.

Description

technical field [0001] The invention belongs to the field of chemical industry, specifically, belongs to the field of long-period operation of chemical heat exchange equipment, and relates to a horizontal fluidized bed heat exchanger in which particles go to the shell side, which is widely used in the shell side prevention and control of horizontal shell-and-tube heat exchangers. dirt. Background technique [0002] Heat exchangers are widely used in petroleum, chemical, energy and other industries. However, as the use time increases, there will inevitably be dirt adhesion in the heat exchanger, which will reduce the heat exchange efficiency of the heat exchanger and increase the resistance, which will affect the normal operation of the heat exchanger. [0003] The fluidized bed heat exchanger plays the role of timely anti-scaling and enhanced heat transfer by introducing inert solid particles and utilizing the fluidization and scouring of solid particles. The fluidized bed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28G1/12F28G15/00
CPCF28D7/16F28G1/12F28G15/00F28G2015/006
Inventor 田立达顾军民张斌
Owner CHINA PETROLEUM & CHEM CORP
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