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Device for measuring particle distribution in tube nest of fluidized bed heat exchanger according to suspension method

A fluidized bed heat exchanger and internal particle technology, which is applied in measuring devices, particle and sedimentation analysis, particle size analysis, etc. The distribution measurement results are accurate, repeatable, and the measurement effect is good

Active Publication Date: 2019-03-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that it is difficult to use the weighing method to measure the distribution of particles in the tubes of fluidized bed heat exchangers in the prior art. device

Method used

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  • Device for measuring particle distribution in tube nest of fluidized bed heat exchanger according to suspension method
  • Device for measuring particle distribution in tube nest of fluidized bed heat exchanger according to suspension method
  • Device for measuring particle distribution in tube nest of fluidized bed heat exchanger according to suspension method

Examples

Experimental program
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Effect test

Embodiment 1

[0032] use figure 1 The device for measuring the particle distribution in the fluidized bed heat exchanger tubes by the suspension method is shown. The diameter of the heat exchanger tube of the device is 250mm, and there are 2 layers of 7 heat exchange tubes inside, 1 in the center layer and 6 in the second layer around it. The roots are arranged in an equilateral triangle, each tube is 1000mm long, and the tube diameter is Φ22×1.5mm. The inner diameter of the small opening of the measuring tube is 19mm, the diameter of the large opening is 400mm, and the height of the variable diameter section is 500mm. The diameter of the sleeve is 400mm, and the height of the sleeve is 30mm. There are two types of sleeves, one is the center opening, and the other is the opening at the concentric circle of the second layer tube section, the opening diameter is 19mm. A large filter screen is installed at 3 / 4 of the height of the particle tank, and the hole of the large filter screen is 1.5...

Embodiment 2～12

[0034]The same suspension method as in Example 1 is used to measure the particle distribution in the tubes of the fluidized bed heat exchanger. The diameter of the heat exchanger tube of the device is 250mm, and there are 7 heat exchange tubes in 2 layers, and 1 in the center layer. There are 6 tubes on the second layer around them, arranged in an equilateral triangle, each tube is 1000mm long, and the tube diameter is Φ22×1.5mm. The inner diameter of the small mouth of the measuring tube is 19mm, and the diameter of the large mouth is 400mm. The sleeve diameter is 400mm. There are two types of sleeves, one is the center opening, and the other is the opening at the concentric circle of the second layer tube section, the opening diameter is 19mm. Large filter mesh hole 1.5mm. Small filter mesh hole 1.5mm. Change the height of the variable diameter section of the measuring tube (height measurement), the height of the sleeve (tube height) 30mm, the ratio of the installation po...

Embodiment 13

[0040] The same suspension method as in Example 1 is used to measure the particle distribution in the tubes of the fluidized bed heat exchanger. The tube diameter of the heat exchanger is 400 mm, and there are 19 heat exchange tubes in 3 layers, and one in the center layer. There are 6 tubes in the second layer around and 12 tubes in the third layer of the outermost layer, arranged in an equilateral triangle, each tube is 1000mm long, and the tube diameter is Φ22×1.5mm. The inner diameter of the small opening of the measuring tube is 19mm, the diameter of the large opening is 400mm, and the height of the variable diameter section is 500mm. The diameter of the sleeve is 400mm, and the height of the sleeve is 30mm. There are three types of sleeves, one is the center hole, the second is the hole at the concentric circle of the second layer tube section, and the other is the third layer tube tube section center concentric circle. Aperture 19mm. A large filter screen is installed...

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Abstract

The invention relates to a device for measuring the particle distribution in a tube nest of a fluidized bed heat exchanger according to a suspension method, and mainly solves the technical problems inmeasurement of the particle distribution in the tube nest of the fluidized bed heat exchanger. The device comprises a to-be-measured tube nest 1, a measuring tube 2, a stirring propeller 3, a sleeve4, a sleeve pore 5, a particle tank 6, an inlet pipe 7, a large filter screen 8, an outlet pipe 9, a pump B 10, a liquid phase tank 11, a pump A 12, a lower tube box 13, a solid check valve 14 and a small filter screen 15, wherein the sleeve 4 is connected with the heat exchanger; the measuring tube 2 with the stirring propeller 3 mounted in the center runs through the sleeve pore 5 and is connected with the to-be-measured tube nest 1; the inlet pipe 7 is mounted below the large filter screen 8 inside the particle tank 6 in an extending manner and is connected with the sleeve 4; the outlet pipe 9 is led out from the upper side of the large filter screen 8 and is connected with the pump B 10; the pump B 10 is connected with the lower tube box 13 by way of the liquid phase tank 11 and the pump A 12. Through adoption of a technical scheme, the technical problems are solved better; the device can be applied to the measurement of the particle distribution in the tube nest of the fluidized bed heat exchanger.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular, belongs to the field of long-term operation of chemical heat exchange equipment, and relates to a device for measuring particle distribution in tubes of fluidized bed heat exchangers by suspension method, which is widely used in the measurement of fluidized bed heat transfer by suspension method Particle distribution in the tube. 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 ...

Claims

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Application Information

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IPC IPC(8): G01N5/00G01N15/02
CPCG01N5/00G01N15/0272
Inventor 田立达顾军民张斌
Owner CHINA PETROLEUM & CHEM CORP
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