On-line self-cleaning heat exchange enhancement solar sewage source heat pump system

Abstract

Disclosed is an on-line self-cleaning heat exchange enhancement solar sewage source heat pump system. A mechanical grid, a hair filter and other devices are adopted to filter dirty impurities, a control valve b, a control valve c, a control valve d and a control valve e are arranged in four sewage pipes connected with a sewage heat exchanger respectively, and the sewage pipes are back washed through switching of a control valve switch. The on-line self-cleaning heat exchange enhancement solar sewage source heat pump system fundamentally resolves the problems that when sewage serves as a cold and heat source and is used, the dirty impurities block the pipes, the hair blocks the heat exchanger, the size of the heat exchanger is large due to dirt, the performance of the heat exchanger is reduced due to turbid water, and the heat exchanger breaks down. A solar device is installed at a water inlet of a water source heat pump, the temperature of inlet water is improved, the problem that the system can not be started normally due to the too low temperature of inlet water in winter is resolved, the heat exchange performance of the system is largely improved, it is ensured that the system is safe, reliable and stable, sewage or surface water can serve as a low-position cold and heat source, the heat pump technology is used for cooling and heating, or used for cooling industrial equipment, and the system is efficient and environment-friendly.

Description

technical field [0001] The invention belongs to a sewage heat exchange system, and relates to an online self-cleaning enhanced heat exchange solar sewage source heat pump system. Background technique [0002] The use of cold and heat sources of sewage can alleviate the current situation of energy shortage. It has good energy-saving effects, environmental protection benefits and economic benefits. It will save increasingly scarce fresh water resources, open up new fields for energy utilization, and provide comprehensive and comprehensive utilization of water resources. A new train of thought. The main reason why sewage cold and heat sources are not widely used and promoted is that their water quality cannot meet the water quality standards required in the current water circulation system. In actual operation projects, these sewage often block the water pumps and heat exchangers, resulting in system performance. Significantly down, can't even run. [0003] In order to solve ...

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Problems solved by technology

[0006] In order to overcome the deficiencies in the above-mentioned prior art, the present invention effectively solves the problems of blockage of heat exchange tubes, growth of dirt, low heat exchange efficiency, machine failures, etc. caused by too much dirt and different sizes, as well as the low temperature of incoming water in winter. For the problem of difficulty in starting up, we provide a solar sewage source heat pump system that can filter dirt of any size and combine clean and non-polluting solar technology to improve the temperature of the influent water with online self-cleaning and enhanced heat exchange

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