Waste heat recovery condenser capable of automatically cleaning scale

Abstract

The waste heat recovery condenser comprises a cooling water cavity, a first material cavity and a second material cavity, a plurality of heat exchange pipes are connected between the first material cavity and the second material cavity, and a liquid inlet main pipeline is controlled by a first electromagnetic reversing valve to be communicated with a first liquid inlet pipeline or a second liquid inlet pipeline. The liquid outlet main pipeline is controlled by a second electromagnetic directional valve to be communicated with the first liquid outlet pipeline or the second liquid outlet pipeline, and the first material cavity is communicated with the first liquid inlet pipeline and the first liquid outlet pipeline; the second material cavity communicates with the second liquid inlet pipeline and the second liquid outlet pipeline, brush body assemblies are arranged in the multiple heat exchange pipes in a sliding mode, each brush body assembly comprises a center shaft, a loading pile and bristles, an electric signal triggering assembly is arranged at the end, located in the first material cavity, of at least one heat exchange pipe, and the electric signal triggering assembly is connected with a control device. The condenser can be always kept in an almost scale-free state in the using process, the heat exchange efficiency is effectively improved, and the condenser does not need to be disassembled to clean scales.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, in particular to a waste heat recovery condenser with automatic scale cleaning. Background technique [0002] In chemical production, it is necessary to cool the material, and there is a process of compression refrigeration cycle. In this process, the function of the condenser is to cool the hot material, and the heat is transferred from the material to another medium, such as water. Or in the air to achieve the cooling device of the material. [0003] From the point of view of the principle of condensation, the main purpose of the condenser is to transfer the heat from the higher temperature material to the cooling medium by means of heat transfer, so as to realize the recovery and utilization of heat. Then the waste heat in the cooling medium is reused, which can effectively improve the utilization rate of heat and achieve the purpose of energy saving and emission reduction. [000...

AI Technical Summary

Problems solved by technology

[0006] However, in long-term use, the high-temperature side of the condenser will be cold during the heat exchange process, and scale will accumulate on the tube wall for a long time, increasing the thickness of the tube wall, reducing the heat exchange efficiency, and may lead to poor material circulation. Some condensers need to stop production when solving this problem. It is very troublesome to flush the pipes through which the condensed water flows through chemical agents, and it is removed only after a certain degree of scaling has accumulated. The cleaning effect is limited, so there is certain room for improvement

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