Device for preparing heated urea solution using boiler exhaust water

By adding an inverted U-shaped elbow and a hot water utilization branch pipe between the boiler continuous blowdown system and the fixed blowdown expansion tank, the urea solution is heated by the continuous blowdown hot water, which solves the problems of high energy consumption of electric heating and wastewater waste, and realizes the recycling of resources.

CN224551520UActive Publication Date: 2026-07-24ZHUHAI XINHUAN ENVIRONMENTAL PROTECTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI XINHUAN ENVIRONMENTAL PROTECTION CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing urea preparation system uses electric heating, which results in high energy consumption, and the continuous discharge of wastewater from the boiler leads to a waste of heat and water resources.

Method used

An inverted U-shaped elbow pipe is added between the boiler continuous blowdown system and the fixed blowdown expansion tank, and connected to the urea preparation tank through a hot water branch pipe. The continuous blowdown hot water replaces electric heating, and automatic control is achieved by combining a level gauge and a solenoid valve.

Benefits of technology

It reduces electricity consumption, realizes the recycling of heat and water resources, solves the problem of heat and water waste caused by continuous sewage discharge, and improves resource utilization.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application relates to the technical field of incineration waste heat boiler, in particular to a device for heating urea solution preparation by utilizing boiler continuous discharge hot water. The device comprises an upside convexly arranged inverted U-shaped elbow pipe with an upside convex height which is additionally connected between a first mother pipe connected with a continuous discharge system and a second mother pipe connected with a fixed discharge expander, the first connecting pipe opening and the second connecting pipe opening of the inverted U-shaped elbow pipe are respectively connected with the first mother pipe and the second mother pipe; and a hot water utilization branch pipe and a first valve installed at the first end of the hot water utilization branch pipe, the first end of the hot water utilization branch pipe is connected to a position close to the inverted U-shaped elbow pipe on the first mother pipe, and the second end opposite to the first end of the hot water utilization branch pipe is used for being connected with a urea preparation tank of a urea preparation system. Therefore, the technical problems of large electric heating electric energy consumption, heat energy waste caused by continuous discharge sewage discharge and water resource waste are solved.
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