An air preheater sootblowing gun tube optimization design method, system, device and medium

By monitoring steam temperature in real time and optimizing nozzle size and angle, the problem of heat transfer element damage caused by insufficient steam temperature under low load operating conditions was solved, thus improving soot blowing safety and air preheater operation reliability.

CN122154083APending Publication Date: 2026-06-05BEIJING ZHIWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING ZHIWEI TECH CO LTD
Filing Date
2026-01-26
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Under low-load operating conditions, insufficient steam temperature causes the soot blower condensate to directly impact the heat transfer elements, resulting in damage and deformation, which affects the service life and operational reliability of the air preheater.

Method used

By monitoring the temperature of the soot blowing steam in real time and dynamically determining the target steam pressure in combination with the preset superheat threshold, the nozzle size parameters are optimized based on this. The matching of the nozzle flow area and pressure parameters is calculated using the isentropic flow relationship, and the angle of the soot blowing gun is adjusted to optimize the steam jet direction.

Benefits of technology

It improves the safety of the soot blowing process and the operational reliability of the air preheater, extends the service life of the equipment, and reduces the risk of mechanical damage to heat transfer elements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of air preheater optimization design, and discloses an air preheater sootblowing gun tube optimization design method, system, device and medium, the method comprising: obtaining the real-time temperature value of sootblowing steam sprayed by the sootblowing gun tube of the air preheater under low load operation conditions; determining a target saturation temperature value according to the real-time temperature value and a preset superheat threshold, and determining a corresponding target steam pressure value according to the target saturation temperature value; and calculating the optimized size parameters of the nozzle based on a preset steam flow rate variation ratio, the target steam pressure value, the initial steam pressure value and the initial size parameters of the nozzle of the sootblowing gun tube. The present application solves the problem of damage and deformation of heat transfer elements caused by direct impact of water vapor due to insufficient steam temperature at low load, improves the safety of the sootblowing process and the reliability of the air preheater operation, and prolongs the service life of the equipment.
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