Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Descaling agent for brine transportation pipeline, as well as usage method thereof

A descaling agent and pipeline technology, which is applied in the field of descaling agent and descaling agent to remove the scale layer of the brine pipeline, can solve the problems of large chemical reaction damage to the pipeline, and achieve high descaling efficiency, stable protection pressure, and construction. short cycle effect

Inactive Publication Date: 2015-03-25
SICHUAN XINAN JIANAN CORROSION ENG
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the scaling of brine pipelines for Glauber's salt brine, the gypsum scale layer belongs to the crystal growth type scale, which is due to the gypsum (CaSO 4 ) Due to changes in brine temperature, pressure, concentration, etc., the solubility of gypsum decreases and slowly adheres to the inner wall of the pipeline. It contains CaSO 4 2H 2 The composition of O is extremely pure and the content of other impurities is low. As far as the current technology is concerned, there is no systematic and reliable chemical descaling agent to deal with it except for the mechanical crushing method. The traditional pickling method is due to the The content of gypsum is very high, and the excess acid is very harmful to the chemical reaction of the pipe

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
  • Descaling agent for brine transportation pipeline, as well as usage method thereof
  • Descaling agent for brine transportation pipeline, as well as usage method thereof
  • Descaling agent for brine transportation pipeline, as well as usage method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to understand the purpose, technical solutions and beneficial effects of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following embodiments.

[0017] The descaling and cleaning process of the brine pipeline adopts a circulation process, which is divided into single-pipe circulation and double-pipe circulation. It can keep the descaling liquid in the state of flowing in the brine pipeline to be cleaned, and improve the scale dissolution effect of the mixed solution.

[0018] Such as figure 1 As shown, the descaling process of the single-pipe circulation of the brine pipeline is as follows: set the liquid storage tanks A1 and B6 at the two ends (A and B ends) of the brine pipeline 1 to be cleaned, and inject clean water into the liquid storage tank A1. According to the formula Add descaling agent and d...

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 descaling agent for a brine transportation pipeline. The descaling agent comprises the following raw materials in parts by weight: 15-20 parts of ethylenediamine tetraacetic acid disodium, 20-35 parts of nitrilotriacetic acid, 10-20 parts of sodium hydroxide and 8-15 parts of sodium chloride. A usage method of the descaling agent comprises the following steps: mixing the descaling agent with a defoaming agent and water according to a weight ratio of (1-1.2):(0.1-0.15):1000 to obtain a mixed liquid, and enabling the mixed liquid to be always in a flowing state in a to-be-cleaned brine transportation pipeline by adopting a single-pipe circulating technology or a two-pipe circulating technology, so that the scale dissolving effect of the mixed liquid can be improved. Based on the complexing principle, gypsum scale layers can be removed by the descaling agent, the descaling agent is convenient and safe to use, the descaling efficiency is high, the descaling quality is good, especially the gypsum scale layer in a mirabilite brine transportation pipeline can be entirely eliminated, the damage of the traditional acid pickling to the pipeline can be solved, the construction period is short, and the production of enterprises is hardly affected.

Description

technical field [0001] The invention relates to a descaling agent and a using method thereof, in particular to a descaling agent and a using method thereof for removing scale layers of brine pipelines, and belongs to the field of chemical industry. Background technique [0002] During the production and transportation of rock salt brine, with the prolongation of use time, scaling will form on the inner wall of the brine transportation pipeline to form a layer of scale layer to hinder the circulation of brine. Scaling in the brine pipeline will cause a decrease in output, or even blockage of the pipeline, which will cause huge economic losses, especially for long-distance pipelines. Therefore, it is necessary to descale the brine pipeline. At present, pipeline descaling technology is divided into two types: mechanical descaling and chemical descaling. Mechanical descaling is to use drilling tools, special equipment and water flushing to remove scale. Descaling is often incom...

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): C11D7/32C11D7/60C11D7/06C11D7/10B08B9/027B08B3/08
Inventor 张明科高书田
Owner SICHUAN XINAN JIANAN CORROSION ENG
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
Eureka Blog
Learn More
PatSnap group products