Heat-pump water heater and adjusting method thereof
A technology of heat pump water heaters and heat exchangers, applied in fluid heaters, refrigeration and liquefaction, lighting and heating equipment, etc., can solve problems such as difficult to effectively adjust the amount of refrigerant in the system, and achieve the effect of improving poor adaptability
Active Publication Date: 2016-09-28
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology
[0009] The main purpose of the present invention is to provide a heat pump water heater and a heat pump water heater adjustment method to solve the problem in the prior art that it is difficult to effectively adjust the amount of refrigerant in the system when the system operating conditions change for the heat pump water heater
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[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0028] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0029] In the present invention, unless stated otherwise, the used orientation words such as "upper, lower, top, bottom" are usually for the directions shown in the drawings, or for the parts themselves in the vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, "inner and outer" re...
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The invention provides a heat-pump water heater and an adjusting method thereof. The heat-pump water heater comprises a main loop, a liquid storage device, a first branch, a second branch and a third branch. The main loop comprises a compressor, a first heat exchanger, a throttling device, a second heat exchanger and a gas-liquid separator, and the compressor, the first heat exchanger, the throttling device, the second heat exchanger and the gas-liquid separator are connected sequentially in series. The liquid storage device is connected to a first pipeline section through the first branch, the first pipeline section is located between an exhaust outlet of the compressor and the first heat exchanger, and a pressure increasing valve is arranged on the first branch. The liquid storage is connected to a second pipeline section through the second branch, the second pipeline section is located between an inlet of the gas-liquid separator and the second heat exchanger, and a pressure reducing valve is arranged on the second branch. The liquid storage device is connected to a third pipeline section through the third branch, and a flow regulating valve is arranged on the third branch. By means of the eat-pump water heater and the adjusting method thereof, the problem that a heat-pump water heater cannot effectively adjust the refrigerant amount in a system when the operating condition of the system changes in the prior art is solved.
Description
technical field [0001] The invention relates to the technical field of heat exchange equipment, in particular to a heat pump water heater and a method for adjusting the heat pump water heater. Background technique [0002] With the improvement of living standards, water heaters have entered thousands of households. [0003] Heat pump water heaters are widely used because of their high efficiency and energy saving features. [0004] For heat pump water heaters, as the ambient temperature or water temperature changes, the working conditions of the system also change accordingly. On the high-pressure side, the water temperature ranges from low to high; on the low-pressure side, the ambient temperature (or water temperature, etc.) is also variable. [0005] Due to the different working conditions of the system, the system's demand for refrigerant is also different. Too little refrigerant will lead to insufficient system capacity and reduced energy efficiency; too much refrige...
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IPC IPC(8): F24H4/02F25B41/00F25B41/04F25B41/06F24H9/20F25B41/20F25B41/34F25B41/40
CPCF24H4/02F24H9/2007F25B41/00F25B2600/2513F25B41/31F25B41/20
Inventor 白国建
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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