An overflow protection device and a lithium bromide absorption chiller unit

CN224285023UActive Publication Date: 2026-05-26TONGFANG KAWASAKI ADVANCED ENERGY SAVING MACHINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGFANG KAWASAKI ADVANCED ENERGY SAVING MACHINE
Filing Date
2025-03-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In lithium bromide absorption chillers, the liquid working fluid crystallizes in the transport pipeline, causing blockages, affecting fluid flow, reducing flow rate, and generating a dilute solution mixed with gas, which damages the circulating pump blades.

Method used

Design an overflow protection device, including an overflow pipe and a protection pipe, to allow liquid working fluid to enter the protection pipe through the overflow pipe when the conventional pipeline is blocked, ensuring normal fluid supply, and then enter the absorber through the protection pipe to generate a sufficient amount of dilute solution, avoiding gas entrainment and preventing cavitation of the circulating pump.

Benefits of technology

It effectively maintains the normal transport of liquid working fluid, ensures that the absorber generates a sufficient amount of dilute solution, prevents damage to the circulating pump blades, and improves heat exchange efficiency and equipment operational stability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224285023U_ABST
    Figure CN224285023U_ABST
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Abstract

This utility model relates to overflow protection devices and lithium bromide absorption chiller units, encompassing the field of equipment operation protection devices. It includes an overflow pipe and a protective pipe. The overflow pipe is located inside the outlet box, with its inlet end above the bottom of the box and its outlet end at the bottom. The protective pipe is positioned below the outlet box, with its inlet end connected to the outlet end of the overflow pipe. The outlet end of the protective pipe is lower than its inlet end. A conventional outlet is also provided at the bottom of the outlet box. When crystals block the pipe connected to the conventional outlet, hindering the flow of the working fluid, the accumulated working fluid in the outlet box will flow from the overflow pipe into the protective pipe, ensuring a normal supply of the working fluid. The lithium bromide absorption chiller unit includes an overflow protection device, allowing concentrated lithium bromide solution to enter the absorber through the protective pipe. The absorber generates a sufficient amount of dilute lithium bromide solution, preventing cavitation of the solution circulation pump blades.
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