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Horizontal column type heat exchanger exterior dirt three-phase fluidization in-situ cleaning process

A technology of horizontal tubes and heat exchanger tubes, which is applied in the field of three-phase fluidized online cleaning of dirt outside the tubes of horizontal tubes and tubes

Inactive Publication Date: 2005-01-19
株洲工学院帅科机械清洗研究所
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AI Technical Summary

Problems solved by technology

[0003] The patent of this invention aims to solve the problem of online rapid cleaning of the dirt outside the tube of the horizontal tube heat exchanger, and proposes a three-phase fluidized online cleaning technology for the dirt outside the tube of the horizontal tube heat exchanger

Method used

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  • Horizontal column type heat exchanger exterior dirt three-phase fluidization in-situ cleaning process
  • Horizontal column type heat exchanger exterior dirt three-phase fluidization in-situ cleaning process
  • Horizontal column type heat exchanger exterior dirt three-phase fluidization in-situ cleaning process

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Embodiment Construction

[0011] Attached to the following figure 1 , attached figure 2 , attached image 3 and attached Figure 4 Describe the specific embodiment of the patent of the present invention:

[0012] In the figure 1. Shell 2. Heat transfer tube 3. Air jet oblique hole 4. Air distribution tube 5. Baffle rod E 6. Baffle rod F 7. Particle axial circulation 8. Tube side fluid inlet 9. Exhaust port 10. Overflow port 11. Shell side liquid outlet 12. Tube side fluid outlet 13. Left half air supply valve 14. Right half air supply valve 15. Particles flow upwards 16. Fluidized particles 17. Gas-liquid separation surface 18. Circumferential direction Circulating downflow 19. Maximum section of pipe bridge G-G 20. Air jet oblique nozzle 21. Shell side liquid inlet

[0013] When cleaning the dirt outside the pipe during operation, open the right half air supply valve 14, the exhaust port 9 and the overflow port 10 on one side of the shell, and close the shell side liquid outlet 11. When the velo...

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Abstract

Disclosed is an outside dirt three-phase circulation fluidized cleaning technology for a horizontal tubular heat exchanger. An air distribution pipe on which a lot of oblique gas orifices are arranged is mounted at the bottom of a casing. Cleaning gas is discharged from top exhaust ports. The cleaning technology is rapid, uniform and pollution free.

Description

technical field [0001] The patent of the present invention relates to a three-phase fluidized online cleaning technology for the external fouling of the horizontal tube heat exchanger. This technology can be widely used in periodic online cleaning of the fouling outside the tubes of various tubular heat exchangers. Background technique [0002] The horizontal shell and tube heat exchangers currently used cannot be mechanically cleaned after the shell-side liquid is scaled outside the tubes during operation. It is almost a single chemical cleaning method, but due to structural reasons, the cleaning uniformity is poor, the effect is not good, and it is easy to cause local corrosion. Therefore, the dirt outside the pipe cannot be cleaned and removed in time, and the operation efficiency gradually declines, deteriorates, or even partially blocks, resulting in early failure and scrapping, which seriously affects the service life. SUMMARY OF THE INVENTION [0003] The patent o...

Claims

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Application Information

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IPC IPC(8): F28G1/12
Inventor 彭德其俞秀民俞天兰吴金香俞天翔林伟璐蒋少青张琳宁立伟
Owner 株洲工学院帅科机械清洗研究所
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