Water tank waste water heat recovery heat pump water heater

Abstract

The invention discloses a water tank waste water heat recovery heat pump water heater. The water tank waste water heat recovery heat pump water heater comprises a waste water sediment filtering pool, a bathing wastewater tank, a hot water tank, an electric heater, a hot water circulating pump, a constant pressure variable frequency pump, a waste water pump, a regulating valve, an evaporator, a throttle valve, a compressor and a condenser, wherein an inlet of the waste water sediment filtering pool is connected with a bathroom waste water collecting pipeline, and an outlet of the waste water sediment filtering pool is connected with the bathing wastewater tank; the bathing wastewater tank, a waste water pump and the evaporator are sequentially connected through pipelines to form a waste water circulation loop; the hot water tank, the hot water circulating pump, the electric heater and the condenser are sequentially connected through the pipelines to form a hot water producing circulation loop, and a tap water pipeline penetrates the bathing wastewater tank to be connected with a hot water circulation pipeline which is located between the electric heater and the condenser; the evaporator, the compressor, the condenser and the throttle valve are connected through the pipelines to form a closed circulation heat pump device; the hot water tank is connected with the constant pressure variable frequency pump. By means of the water tank waste water heat recovery heat pump water heater, bathroom waste water waste heat can be fully and effectively utilized, the power of the heat pump compressor is reduced, and great energy-saving advantages are achieved.

Description

【Technical field】 [0001] The invention relates to a water tank waste water heat recovery heating pump water heating device. 【Background technique】 [0002] At present, with the shortage of energy and the deterioration of the environment, sustainable development has become a hot topic and has attracted widespread attention from all over the world. In our country, energy conservation and emission reduction, as an important and urgent task of the current economic and social development, is an inevitable choice to implement the scientific development concept and realize the sustainable development strategy, and has been listed as a basic national policy of our country. At present, my country's heating methods mainly include several conventional heating methods such as coal, oil, gas, electric heating, and solar energy. With the development of the economy, the shortage of resources has increasingly become the main obstacle restricting social development; with the advancement of ...

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Problems solved by technology

[0004] In some bathrooms (such as university bathrooms) with fixed opening hours, large water flow, relatively stable temperature (shower temperature and drain temperature) and moderate shower temperature, although the bathroom waste water heat pump technology used is much more energy-efficient than other hot water heating methods, However, it is still not able to make full use of the waste heat in the wastewater

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