Method for determining white plume control line of smoke after wet desulphurization

US11520078B2 · kind B2 · utility

Assignee

• NANJING TECH UNIVERSITY · CN

Inventors

• Haitao Xu · Hubei, CN
• Changcheng Zhou · Beijing, CN
• Jianjun Jiang · Nanjing, CN
• Qiang Li · Beijing, CN
• Jian Zou · Shifang, CN
• Kai Shen · Nanjing, CN
• Da Shen · Nanjing, CN

Key dates

• Filing date: Oct 31, 2018
• Grant date: Dec 6, 2022
• Expiry date: Mar 1, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23J2900/15004
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Determining a white plume control line of smoke after wet desulphurization includes: drawing a saturated air enthalpy humidity curve or equivalent; obtaining annual temperature and humidity change data of located cities or regions along with the time at the frequency of at least one datum every day; drawing the data obtained in the saturated air enthalpy humidity curve; and drawing a tangent line on the saturation curve by using each meteorological point in a chart, the right lower side of the tangent line is a de-pluming control region, the de-pluming effect superior to that at the feature meteorological point can be realized when the smoke enters the region after regulation, a region defined by the de-pluming control line and the saturation curve at a low-temperature side forms a de-pluming day number control region, and the point number falling within the region is the white plume generating day number.