Three-level heated waste water waste heat recovery device of heat-pump water heater

A waste heat recovery device, heat pump water heater technology, applied in heat recovery systems, fluid heaters, energy-saving heating/cooling, etc., can solve the problems of small temperature difference of waste water and low waste heat recovery rate

Active Publication Date: 2013-10-09
佛山市确正冷热设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage of this waste heat recovery device: the temperature difference between waste water and tap water is small, and the waste heat recovery rate is very low

Method used

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  • Three-level heated waste water waste heat recovery device of heat-pump water heater

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Embodiment Construction

[0009] Such as figure 1 As shown, a three-stage waste heat recovery device for heat pump water heaters includes a main water collection tank 1 for collecting hot waste water. Specifically, the main water collection tank 1 is installed at the bottom of the bathroom. A heat exchanger 2, a first evaporator 3, and a second evaporator 4 are sequentially installed in the main water collecting tank 1 from top to bottom, wherein the second evaporator 4 is installed in a main water collecting tank 1 and in In the auxiliary water collection tank 5 below the first evaporator 3, the heat exchanger 2 is connected in series to the water inlet pipe of the heat pump water heater, the first evaporator 3 and the second evaporator 4 are connected in series, and the output end of the first evaporator 3 It is connected to the inlet of the compressor of the heat pump water heater, and the input end of the second evaporator 4 is connected to the outlet of the throttling valve of the heat pump water ...

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Abstract

The invention discloses a three-level heated waste water waste heat recovery device of a heat-pump water heater. The three-level heated waste water waste heat recovery device comprises a main water collection tank used for collecting heated waste water. A heat exchanger, a first evaporator and a second evaporator are sequentially mounted in the main water collection tank from top to bottom, wherein the second evaporator is mounted in an auxiliary water collection tank which is accommodated in the main water collection tank below the first evaporator. The heat exchanger is in series connection to a water inlet pipe of the heat-pump water heater. The first evaporator and the second evaporator are in series connection. The output end of the first evaporator is connected to an inlet of a compressor of the heat-pump water heater. The input end of the second evaporator is connected to an outlet of a throttle valve of the heat-pump water heater. According to the three-level heated waste water waste heat recovery device, water stored in the auxiliary water collection tank in advance can be utilized as a heat source for the heat-pump water heater to absorb heat when the heat-pump water heater starts to operate. After the operation of the heat-pump water heater is finished, the heat of generated waste hot water is subjected to three-level waste heat recovery through the three-level heated waste water waste heat recovery device, so that the heat of the waste hot water is recovered as much as possible.

Description

Technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to a waste heat recovery device for hot waste water of heat pump water heaters. Background technique [0002] A water source heat pump water heater is a device that absorbs heat from water to heat hot water. The evaporator of a water source heat pump water heater is the part responsible for absorbing heat from the water. The evaporators currently used are mainly two types: circulating evaporators and immersion evaporators. The circulating evaporator requires a large amount of water to circulate continuously to provide heat for the evaporator to absorb; the immersion evaporator needs to be soaked in a pool or tank to absorb heat. When these two evaporators work, a large amount of water needs to be supplemented to provide heat for the evaporator to absorb. If the amount of water is insufficient, the heat pump water heater will produce less water, and in severe cases...

Claims

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Application Information

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IPC IPC(8): F24H4/04F24H9/00
CPCY02B30/52
Inventor 蔡林润彭越诚曾森权
Owner 佛山市确正冷热设备有限公司
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