Once-through boiler corrosion and scaling risk diagnosis method

A technology of once-through boiler and diagnosis method, which is applied in the direction of boiler working condition indication, etc., can solve problems such as boiler system corrosion, and achieve the effects of improving steam quality, reducing corrosion rate, and reducing the amount of deposits and scaling.

Active Publication Date: 2015-12-30
GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the once-through boiler is a huge and complex system, and there are many factors that can cause corrosion and scaling of the boiler system. Only by analyzing the water vapor index to determine the risk of corrosion and scaling of the system has certain limitations.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Once-through boiler corrosion and scaling risk diagnosis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Example 1 A diagnostic method for corrosion and scaling risks of once-through boilers

[0068] combine figure 1 The flowchart shown in the present invention describes the method of the present invention in detail. The first risk factor investigated by the diagnostic method of the present invention is (1) whether the once-through boiler is in operation. According to whether the once-through boiler is in operation, determine the boiler corrosion and scaling tendency judgment route.

[0069] Once through boiler is running

[0070] If the boiler is in operation, check the risk factors (2) Whether the once-through boiler water supply system contains copper alloy components (excluding condensers), and thus divide the water supply system into a copper system and a copper-free system. (3) Whether a reasonable water treatment method is adopted. The feed water treatment method adopted by the copper-free once-through boiler is full-volatility treatment, including reductive f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a once-through boiler corrosion and scaling risk evaluation and diagnosis method. The method comprises the step of judging nine risk factors such as whether a once-through boiler runs or not, whether reasonable boiler shutdown protective measures are taken or not, whether reasonable water washing is carried out or not, whether a once-through boiler water supply system container copper or not, whether a reasonable water treatment way is adopted or not, whether all chemical instruments are provided or not, whether chemical addition equipment has high reliability and availability or not, whether monitoring data are qualified or not and whether timely treatment is carried out according to a tertiary treatment rule or not, so that the systematic step-by-step diagnosis method is formed, and a conclusion that corrosion and scaling tendency is serious or no serious corrosion or scaling tendency exists is obtained through evaluation. By means of the method, boiler corrosion and scaling factors can be known in advance, so that the boiler corrosion speed is effectively decreased, boiler pipe sediment and scale amount are reduced, the steam quality is improved, and safe and economical running of a unit is ensured.

Description

technical field [0001] The invention relates to a method for diagnosing boiler corrosion and scaling risks, in particular to a method for diagnosing the risk of corrosion and scaling of thermal equipment in a once-through boiler. Background technique [0002] Electric power is an important basic industry for national economic and social development. The safe production of electric power enterprises is related to the safety of the country and people's life and property, the healthy development of the national economy, people's hearts and social stability. Statistics show that damage accidents caused by boiler corrosion and scaling account for the vast majority of power production accidents. In the past 20 years, my country has recorded a total of 40,533 boiler tube damage accidents, of which 80% of the furnace tube failures caused power plant failures. Accident shutdown. At present, checking the water vapor quality of the thermal system is the main method for diagnosing the c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F22B37/38
Inventor 李茂东赵军明杨波陈映桐李仕平郭思学尹宗杰刘娟何勃杜玉辉
Owner GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap