Wastewater source heat pump water heater of residential buildings

A water source heat pump and water heater technology, which is applied to fluid heaters, energy-saving heating/cooling, lighting and heating equipment, etc., and can solve problems such as increasing the workload of the refrigerant circulation loop, insufficient utilization of waste water and waste heat, and compressor damage. , to achieve the effect of increasing utilization, reducing workload and improving energy efficiency ratio

Active Publication Date: 2010-09-01
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But the heat pump water heater of prior art has following defect: because this heat pump water heater is not specially designed for bathroom waste water, so its energy efficiency ratio is low, and the waste hea

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  • Wastewater source heat pump water heater of residential buildings
  • Wastewater source heat pump water heater of residential buildings

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Embodiment Construction

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] As shown in the accompanying drawings, the residential building waste water water source heat pump water heater of the present invention includes a compressor 6, a hot water heat exchanger 3, a throttling device (an expansion valve 7 is used in this embodiment), a waste water heat exchanger 4 and A closed refrigerant circulation loop composed of refrigerant pipes, waste water concentration pipe 1.1, waste water discharge pipe 1.3, tap water pipe 2.1, hot water supply pipe 2.3, waste water heat recovery heat exchanger 5, hot water transition pipe 2.2 and waste water transition pipe 1.2. The waste water concentration pipe 1.1 is communicated with the inlet of the waste water channel of the waste water heat recovery heat exchanger 5, the outlet of the waste water channel of the waste water heat recovery heat exchanger 5 is communicated with th...

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Abstract

The invention discloses a wastewater source heat pump water heater of residential buildings. The water heater comprises a refrigerant circulation loop, a wastewater collecting pipe (1.1), a wastewater discharge pipe (1.3), a running water pipe (2.1), a heating pipe (2.3), a wastewater heat recovery exchanger (5), a hot water transition pipe (2.2) and a wastewater transition pipe (1.2), wherein the wastewater collecting pipe (1.1) is communicated with the wastewater heat recovery exchanger (5), the wastewater heat recovery exchanger (5) is communicated with the wastewater transition pipe (1.2), the wastewater transition pipe (1.2) is communicated with a wastewater heat exchanger (4); and the running water pipe (2.1) is communicated with the wastewater heat recovery exchanger (5), the wastewater heat recovery exchanger (5) is communicated with the hot water transition pipe (2.2), and the hot water transition pipe (2.2) is communicated with a hot water heat exchanger (3). The energy efficiency ratio of the heat pump water heater is high and the condition that the compressor is damaged due to overload operation can be avoided.

Description

technical field [0001] The invention relates to a heat pump water heater, in particular to a residential building wastewater water source heat pump water heater. Background technique [0002] Residential buildings such as public bathrooms, hotels, and residential buildings generally maintain a temperature above 25°C after the bathroom wastewater is concentrated by the sewer pipe. In order to make full use of this part of the waste heat in the wastewater, people generally use a water-to-water type (that is, both the cold and heat sources use water) water-source heat pump as the heat pump water heater, the concentrated bathroom wastewater is used as the outdoor medium, and the tap water is used as the indoor medium. The refrigerant circulation loop transfers the low-level thermal energy in the bathroom wastewater to the tap water to form 55-60 ℃ hot water. [0003] The traditional heat pump water heater includes a closed refrigerant circulation loop composed of a compressor, ...

Claims

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Application Information

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IPC IPC(8): F24H4/02
CPCY02B30/12
Inventor 郑坚江董云达
Owner NINGBO AUX ELECTRIC
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