Heat pump water heater and control method thereof

A technology of a heat pump water heater and a control method, which is applied to fluid heaters, refrigerators, refrigeration components, etc., can solve problems such as waste of hot water, and achieve the effects of reducing energy consumption and rapidly reducing water demand

Inactive Publication Date: 2020-04-10
QINGDAO HAIER NEW ENERGY ELECTRIC APPLIANCE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the heat pump water heater heats the water in the inner tank, the micro-channel heat exchanger can only heat the entire inner tank
When the user's water consumption is not large or the number of water users is small, the user needs to wait for a long time to heat the hot water, and it will also cause a lot of waste of hot water

Method used

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  • Heat pump water heater and control method thereof
  • Heat pump water heater and control method thereof
  • Heat pump water heater and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] like figure 1 and Figure 5 As shown, the heat pump water heater in this embodiment includes an inner tank 100 and a heat pump unit 200. The heat pump unit 200 includes a compressor 1, a condenser 2, a first throttling device 3 and an evaporator 4 connected together. The condenser 2 includes: The first sub-condenser 21, the second sub-condenser 22 and the valve assembly 23, the first sub-condenser 21 is arranged on the upper area of ​​the inner tank 100 to heat the water on the upper part of the inner tank 100, and the second sub-condenser 22 is arranged inside On the tank 100 and below the first sub-condenser 21 to heat the water in the lower part of the inner tank 100; the valve assembly 23 is connected between the first sub-condenser 21 and the second sub-condenser 22, and the valve assembly 23 is used for selectively The refrigerant output from the first sub-condenser 21 is throttled.

[0039]Specifically, in the heat pump water heater in this embodiment, the valv...

Embodiment 2

[0046] The present invention also provides a control method for a heat pump water heater. The heat pump water heater adopts the heat pump water heater described in the above embodiments, and the specific structural form is not repeated here. The specific control methods include: fast heating mode and full tank heating mode;

[0047] In the fast heating mode, the refrigerant flowing out of the first sub-condenser passes through the valve assembly for throttling treatment. Specifically, in the rapid heating mode, in order to release most of the heat generated by the compressor through the first sub-condenser, throttling treatment is performed on the refrigerant flowing out of the first sub-condenser. In this way, heat can be released quickly through the first sub-condenser to quickly heat the water in the upper part of the inner tank to realize rapid heating of water.

[0048] In the whole tank heating mode, the refrigerant flowing out of the first sub-condenser enters the seco...

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Abstract

The invention discloses a heat pump water heater and a control method thereof. The heat pump water heater comprises an inner container and a heat pump unit. The heat pump unit comprises a compressor,a condenser, a first throttling device and an evaporator which are connected together. The condenser comprises a first sub-condenser, a second sub-condenser and a valve assembly, wherein the first sub-condenser is arranged on the inner container; the second sub-condenser is arranged on the inner container and is positioned below the first sub-condenser; and the valve assembly is connected betweenthe first sub-condenser and the second sub-condenser, and the valve assembly is used for selectively throttling a refrigerant output from the first sub-condenser. The refrigerant output by the first sub-condenser is selectively throttled, in a quick heating mode, only water in an upper half container of the inner container needs to be heated, a requirement of a user for quick water use is met, andmeanwhile, waste of hot water is reduced, and energy consumption of the heat-pump water heater is decreased.

Description

technical field [0001] The invention belongs to the technical field of household appliances, and in particular relates to a heat pump water heater and a control method thereof. Background technique [0002] At present, water heaters are household appliances commonly used in people's daily life. Water heaters are divided into electric water heaters, solar water heaters and heat pump water heaters. Among them, heat pump water heaters are widely used because of their high energy efficiency. A heat pump water heater generally includes a water tank and a refrigeration circuit, the refrigeration circuit includes a compressor connected together, a condenser, a throttling device and an evaporator, and the water tank includes an outer shell and an inner tank arranged in the outer shell. Wherein, the condenser is arranged on the outside of the inner tank to release heat to heat the water stored in the inner tank. [0003] Chinese Patent No. 201210107201.2 discloses a heat pump water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/06F24H4/04F25B49/02F25B41/20F25B41/30F25B41/34
CPCF24H4/04F25B49/02F25B41/31
Inventor 杨磊魏爱国杜顺祥李文东余锦剑赵润鹏黄娟
Owner QINGDAO HAIER NEW ENERGY ELECTRIC APPLIANCE
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