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Heat pump water heater and method for heating water by using same

A heat pump water heater and hot water technology, applied in the field of refrigeration compressors, can solve problems such as shortening the life of the compressor, reducing the energy efficiency ratio of the compressor, and poor operating conditions, so as to reduce heat loss, reduce suction overheating, and reduce operating conditions. The effect of temperature

Inactive Publication Date: 2014-04-16
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the heat pump water heater is working, it mainly exchanges heat through low-temperature water and high-temperature gas discharged by the compressor, so as to achieve the purpose of increasing the water temperature. The water temperature mainly depends on the discharge temperature of the compressor. This heat extraction method often makes the compressor exhaust The temperature exceeds 120 degrees, but the temperature of the hot water can barely reach about 50 degrees, which is still far from the optimal temperature of 60 degrees for sterilization and disinfection. Therefore, in order to obtain higher temperature hot water, it is often required to have a higher exhaust temperature of the compressor , but the higher the exhaust temperature, the greater the compressor load, and the worse the operating conditions. Operating under high exhaust temperature conditions will not only shorten the life of the compressor, but also reduce the energy efficiency ratio of the compressor.

Method used

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  • Heat pump water heater and method for heating water by using same
  • Heat pump water heater and method for heating water by using same
  • Heat pump water heater and method for heating water by using same

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as Figure 1 to Figure 4 As shown, a heat pump water heater includes a compressor 1, a condenser 2, a capillary tube 3, an evaporator 4, and a water supply unit 5. , the internal circulation of the evaporator 4; the shell wall 6 of the compressor 1 is a layered heat exchange wall with at least two layers, and at least one sealed cavity 60 is formed between the layers of the layered heat exchange wall. A group of matching inlets and outlets (61, 62) communicating with the sealed cavity 60 is provided on the outer wall layer of the chamber 60; a water heat exchange part 7 is provided in the condenser 2, and the water heat exchange part 7 is connected with an inlet The water pipe port 70 and the water outlet pipe port 71; the water of the water supply part 5 enters the layered heat exchange wall 6 of the compressor 1 through the pipeline and communicates with the water heat exchange part 7 of the condenser 2, and passes through the output pipe after heat exchange Roa...

Embodiment 2

[0029] Such as Figure 5 and Figure 6As shown, the difference from Embodiment 1 is that the layered heat exchange wall 6 is a layered structure of two layers, and a sealed cavity 60 is formed between the two layers, and the sealed cavity 60 is provided with a The partition plate 9 of the first sealed cavity 60a and the second sealed cavity 60b is provided with the first sealed cavity 60a and the second sealed cavity 60b which are respectively communicated with each cavity on the outer wall layer of the newly generated first sealed cavity 60a and the second sealed cavity 60b. The first inlet and outlet (10a, 10b) and the second inlet and outlet (11a, 11b), the water supply part 5 communicates with the first sealed cavity 60a, and the first outlet 10b of the first sealed cavity 60a passes through the pipeline respectively It communicates with the second inlet 11a of the second sealed cavity 60b and the water inlet nozzle 70 of the water heat exchange part 7, and the hot water ...

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Abstract

The invention provides a heat pump water heater and a method for heating water by using the same. The heat pump water heater comprises a compressor, a condenser, a capillary tube, an evaporator and a water supply part, wherein a refrigerant in the compressor circulates in the compressor, the condenser, the capillary tube and the evaporator through a pipeline; the shell wall of the compressor is at least two layers of lamellar heat exchange walls, at least one seal cavity is formed between layers of the lamellar heat exchange walls, and at least one group of matched inlets and outlets which are communicated with the seal cavity are arranged on the outer wall layer of the seal cavity; a water heat exchange part is arranged in the condenser, and a water inlet pipe mouth and a water outlet pipe mouth are connected to the water heat exchange part; and water of the water supply part respectively enters the lamellar exchange walls of the compressor through the pipeline and is communicated with the water heat exchange part of the condenser, and after heat exchange, hot water is supplied to the user side through an output pipeline.

Description

【Technical field】 [0001] The invention relates to the technical field of refrigeration compressors, in particular to a heat pump water heater and a water heating method thereof. 【Background technique】 [0002] Existing compressors or heating equipment, especially compressors for heat pump water heaters, generally include a casing, a motor, a compressor and a lubricating and sealing refrigeration oil structure. When the heat pump water heater is working, it mainly exchanges heat through low-temperature water and high-temperature gas discharged by the compressor, so as to achieve the purpose of increasing the water temperature. The water temperature mainly depends on the discharge temperature of the compressor. This heat extraction method often makes the compressor exhaust The temperature exceeds 120 degrees, but the temperature of the hot water can barely reach about 50 degrees, which is still far from the optimal temperature of 60 degrees for sterilization and disinfection. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H4/02F24H9/00
Inventor 黎法运陈迪松王方明王勇李旺宏
Owner GREE ELECTRIC APPLIANCES INC
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