Dirty water source heat pump system

Abstract

The invention discloses a dirty water source heat pump system. The dirty water source heat pump system comprises a dirty water circulation system, an intermediary circulation system, a tail end circulation system, a dirty water source heat exchanger and a water source heat pump unit, wherein the dirty water source heat exchanger comprises a shell, a heat exchange pipe assembly capable of rotatingin the shell and a driving device for driving the heat exchange pipe assembly to rotate forward and reversely. Through the arrangement, after the dirty water enters the shell, the dirty water is rotated under driving of the heat exchange pipe assembly to form a downward rotational flow, so that downward suction force is generated on suspended or floating kind impurities, then the suspended or floating kind impurities are discharged, and the problem of blockage caused by suspended matters or floating objects is avoided; and the heat exchange pipe assembly rotates forwards and reversely in an alternate mode so that the scouring direction of the dirty water on the outer surface of the heat exchange pipe assembly can be changed, then impurities wound around the heat exchange pipe assembly falloff under the reverse scouring effect of the dirty water and can be discharged along with the dirty water, then the winding type dirt blockage is effectively removed, so that the influence caused bythe blockage problem of the dirty water source heat exchanger on the dirty water source heat pump system is reduced.

Description

technical field [0001] The invention relates to the technical field of heat pumps, in particular to a sewage source heat pump system. Background technique [0002] In daily life, waste water can be seen everywhere. With the rapid economic development, the total amount of waste water discharge in my country is increasing year by year. Waste water contains a large amount of heat energy that can be used. This part of heat is used as the heat source of the heat pump system, which can greatly recover the heat energy in urban sewage. More importantly, it saves energy and reduces consumption. The sewage source heat pump unit is an important part of the sewage source heat pump system. It mainly uses the characteristics of urban sewage to be warm in winter and cool in summer. In winter, the heat pump device extracts the heat energy resources contained in urban sewage and transfers it to the building together with the consumed energy. Similarly, in summer, the sewage source heat pump...

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Problems solved by technology

[0005] In order to overcome the problems existing in related technologies at least to a certain extent, this application provides a sewage source heat pump system, which can solve the problem that the existing sewage source heat pump system uses the heat energy of waste water because the sewage source heat exchanger is prone to Problems affecting sewage source heat pump systems due to clogging

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