Heat exchanger for high-salinity wastewater treatment

By designing scraping leaves, rotating rods and scraping rings in a heat exchanger for high-salt wastewater treatment, the problem of scaling of the inner wall of the heat exchange tube caused by circulating evaporation and concentration of high-salt wastewater is solved, and a more efficient heat exchange effect is achieved.

CN222799731UActive Publication Date: 2025-04-25JIANGSU WEISHENGDA INTELLIGENT EQUIP TECH CO LTD
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Patent Information

Application Number
CN202421750147.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-04-25
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

When the high-salt wastewater is heat exchanged by using a tube-type heat exchanger, as the high-salt wastewater continues to circulate and evaporate and concentrate, the inner wall of the heat exchange tube is prone to scale, reducing the heat exchange efficiency.

Method used

A heat exchanger for high-salt wastewater treatment is designed, and the inner wall of the heat exchange tube is scraped with scraping blades and rotating rods. Combined with the design of the scraping ring, the inner wall of the heat exchange tube is scraped twice under the push of the electric push rod to prevent scaling.

Benefits of technology

The scraping blade and rotating rod are driven by the impact of the water flow, and combined with the design of the scraping ring, it effectively prevents the inner wall of the heat exchange tube from being scaled and improves the heat exchange efficiency.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model belongs to the technical field of tubular heat exchangers, and particularly relates to a heat exchanger for high-salinity wastewater treatment, which comprises a tube shell, a first seal head and a second seal head. The first sealing head is fixedly connected with a high-salinity wastewater inlet pipe and a high-salinity wastewater outlet pipe; a supporting table, a hot medium outlet pipe and a hot medium inlet pipe are fixedly connected to the outer wall of the pipe shell; the two ends of the tube shell are fixedly connected with a first tube plate and a second tube plate; a group of heat exchange tubes are fixedly connected between the first tube plate and the second tube plate, and the heat exchange tubes are positioned in the tube shell; the heat exchange tube is fixedly connected with a group of baffle plates; a rotating rod is arranged in the heat exchange tube; the rotating rod is fixedly connected with a pair of symmetrical scraping blades; the scraping blades are spirally arranged; the problems that when a tubular heat exchanger is used for conducting heat exchange treatment on high-salinity wastewater, along with continuous circulating evaporation and concentration of the high-salinity wastewater, the inner wall of a heat exchange tube is prone to scaling, and the heat exchange efficiency is reduced are solved.
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