Freon-sewage heat exchanger

Abstract

The invention provides a Freon-sewage heat exchanger which is applied to a sewage source heat pump. The Freon-sewage heat exchanger comprises a box body, a sewage runner, a heat conducting tube, a Freon adjusting pipeline and a base. Sewage flows in the sewage runner in the box body and Freon flows in the heat conducting tube which is immersed in the sewage runner. Heat exchange is carried out by the heat conducting tube wall between sewage and Freon. The flowing path of sewage is parallel to the heat conducting pipeline. The flow area of Freon is changed by the Freon adjusting pipeline at the end part of the heating conducting tube. According to the Freon-sewage heat exchanger provided by the invention, sewage is not needed to be strictly purified and enters into the Freon-sewage heat exchanger directly. The sewage flowing pipeline in the heat exchanger is not blocked, and works stably for a long time. Heat exchange between sewage and a refrigerant Freon is directly carried out. The refrigerant Freon can obtain more heat from sewage or discharge more heat to sewage, so that the efficiency of a sewage source heat pump unit is improved.

Description

technical field [0001] The invention relates to heat exchange equipment, in particular to a freon-sewage heat exchanger. Background technique [0002] Using urban sewage as a cold and heat source, heating and air-conditioning buildings through sewage source heat pumps can directly reduce the consumption of other energy shortages, and at the same time achieve the purpose of waste utilization. An important measure of a friendly environment. [0003] The sewage source heat pump realizes the recycling of urban waste heat and turns waste into treasure. It is a new type of renewable and clean energy utilization technology, which meets the requirements of sustainable development and building a resource-saving society. Combining water source heat pump system technology with urban sewage has far-reaching significance in expanding the scope of urban sewage utilization and expanding the benefits of urban sewage treatment. [0004] The sewage source heat pump relies on the physical st...

AI Technical Summary

Problems solved by technology

[0015] 2. The heat pump unit using freon-sewage heat exchanger needs special treatment, which is technically difficult

[0016] 3. The direct system requires a major modification of the evaporator / condenser of the heat pump unit, and there are few corresponding manufacturers

The working conditions of sewage heat exchangers are very different from ordinary heat exchangers. The design method and experience of ordinary heat exchangers cannot be simply used for sewage heat exchangers.

Although the design method and manufacturing process of ordinary heat exchangers are very mature, the scientific design method of sewage heat exchangers has not been well solved so far.

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