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No-scaling fluidized bed heat exchanger

A fluidized bed heat exchanger and heat exchanger technology, applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve the problems of decreased heat exchange effect and easy scaling of heat exchanger tubes.

Active Publication Date: 2017-04-26
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 that in the prior art, the tube side of the heat exchanger is prone to fouling, and the heat exchange effect is obviously reduced after long-term use. It provides a non-fouling fluidized bed heat exchanger

Method used

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  • No-scaling fluidized bed heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] use figure 1 The non-fouling fluidized bed heat exchanger shown is applied to the refining tower condenser of a methyl tert-butyl ether plant. The non-fouling fluidized bed heat exchanger is equipped with 600 heat exchanger tubes, and each tube The length is 3000mm, the pipe diameter is Φ22×1.5mm, and the pipes are arranged in an equilateral triangle. The solid particles are glass beads with an average particle diameter of 5 mm, and the average volume solid content of the solid particles in the non-fouling fluidized bed heat exchanger is 3%. The liquid phase is circulating cooling water with a flow rate of 1.5m / s. The distribution bin is figure 2 Conical shape shown. Distribution box height 300mm. The diameter of the narrow tube is 6mm, the length is 8mm, and there are 4 thin tubes arranged in each heat exchanger tube. The diameter of the spherical plug is twice the diameter of the inlet of the lower tube box. bezel for Figure 4 For the plate type shown, the ma...

Embodiment 2

[0035] The same non-fouling fluidized bed heat exchanger as in Example 1 is applied to the refining tower condenser of a certain methyl tert-butyl ether plant. The solid particles are glass beads with an average particle diameter of 2 mm. The solid particles are in the non-fouling flow The average volume solid content in the fluidized bed heat exchanger is 8%. The liquid phase is circulating cooling water with a flow rate of 4m / s. The distribution bin is figure 2 Trumpet shown. The height of the distribution box is 900mm. The diameter of the narrow tube is 6mm, the length is 15mm, and there are 4 thin tubes arranged in each heat exchanger tube. The diameter of the spherical plug is 1.2 times the diameter of the inlet of the lower tube box. bezel for Figure 4 For the reverse roof type shown, the maximum length of the vertical projection is 0.3 times the diameter of the heat exchanger cylinder. The distribution plate is Figure 5 The shown single-layer convex circular p...

Embodiment 3

[0037] The same non-fouling fluidized bed heat exchanger as in Example 1 is applied to the refining tower condenser of a certain methyl tert-butyl ether plant. The solid particles are made of alumina beads with an average particle size of 5mm, and the solid particles do not scale in this The average volume solid content in the fluidized bed heat exchanger is 3%. The liquid phase is circulating cooling water with a flow rate of 1.5m / s. The distribution bin is figure 2 Conical shape shown. The distribution box height is 300mm. The diameter of the narrow tube is 6mm, the length is 8mm, and there are 3 thin tubes arranged in each heat exchanger tube. The diameter of the spherical plug is twice the diameter of the inlet of the lower tube box. bezel for Figure 4 For the propeller type shown, the maximum length of the vertical projection is 0.1 times the diameter of the heat exchanger cylinder. The distribution plate is Figure 5 The shown single-layer downward-convex grid b...

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Abstract

The invention relates to a no-scaling fluidized bed heat exchanger. The no-scaling fluidized bed heat exchanger is mainly used for solving the technical problems that in the traditional technology, a methyl tertiary butyl ether device refining tower condenser tube pass is liable to scale, and the heat exchange effect is lowered significantly after a long period of usage. According to the adopted technical scheme of the no-scaling fluidized bed heat exchanger, a lower pipe box 1, a heat exchanger tube 2, an upper pipe box 3, a liquid-solid separator 4, a downtake 5, a solid particle trough 6, a liquid storage trough 7, a liquid circulation pump 8, a distribution box 9, a ball plug 10, a baffle 11 and a distribution plate 12 are included; the distribution box 9 is connected with the heat exchanger tube 2 through a thin tube 13; the heat exchanger tube 2 is connected with the upper pipe box 3; the upper pipe box 3 is connected with the liquid-solid separator 4; solid particles enter the solid particle trough 6 through the downtake 5 and then return to the lower pipe box 1; liquid enters the liquid storage trough 7 and is conveyed to the lower pipe box 1 through the liquid circulation pump 8, through the technical scheme, the technical problems are solved well, and the no-scaling fluidized bed heat exchanger can be used for prolonging the operation cycle of a methyl tertiary butyl ether device refining tower condenser.

Description

technical field [0001] The invention belongs to the field of chemical industry, specifically, belongs to the field of long-term operation of chemical heat exchange equipment, and relates to a non-fouling fluidized bed heat exchanger, which is widely used to solve the problem of liquid phase leakage in the tube side, and the tube side is prone to scaling and blockage The long-term operation of the shell and tube heat exchanger. Background technique [0002] Heat exchangers are widely used in petroleum, chemical, energy and other industries. However, as the use time increases, the heat exchanger will inevitably have dirt adhesion, which will lead to a decrease in the heat exchange efficiency of the heat exchanger and an increase in resistance, which will affect the normal operation of the heat exchanger. [0003] The development of a fluidized bed heat exchanger that is not easy to foul to replace the traditional heat exchanger can improve the heat transfer effect of the heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/16F28F19/00F28G1/12
CPCF28D7/16F28F19/00F28G1/12
Inventor 顾军民田立达张斌
Owner CHINA PETROLEUM & CHEM CORP
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