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Air source heat pump water heater and control method thereof

An air source heat pump and water heater technology, which is applied in the direction of fluid heaters, lighting and heating equipment, etc., can solve problems such as uneven pressure distribution of condensers, reduced hot water output rate, and failure to satisfy users

Inactive Publication Date: 2020-07-07
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of the condenser heating the water in the water tank, the water in the water tank has the problem of high water temperature at the top and low water temperature at the bottom, which makes the water temperature in the water tank stratified seriously, which will also cause the condenser to heat the water tank There will be a problem of uneven pressure distribution, and the heating effect of the condenser in the high-temperature water section is poor, resulting in a decrease in the hot water output rate; at the same time, since the water outlet of the water tank is usually arranged on the top of the water tank, the hot water at the top of the water tank is output from the The water temperature range is single, which cannot meet the user's requirements for different water temperatures, resulting in poor user experience

Method used

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  • Air source heat pump water heater and control method thereof
  • Air source heat pump water heater and control method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the heat pump water heater in this embodiment includes a refrigerant flow path, and the refrigerant flow path includes a compressor 1, a condenser 2, a throttling device 3, and an evaporator 4 connected together. The evaporator 4 is equipped with a fan 41 for Heat exchange on the outdoor side. The heat pump water heater in this embodiment also includes a first water tank and a second water tank which are arranged independently of each other. A first inner tank 51 is arranged in the first water tank, and a second inner tank 52 is arranged in the second water tank. The configuration of the first inner tank 51 There is a first water inlet pipe 511 and a first water outlet pipe 512, the second inner tank 52 is equipped with a second water inlet pipe 521 and a second water outlet pipe 522, and the second inner tank 52 is also provided with heat absorbing and storing heat The phase change energy storage component (not shown); the condenser 2 includ...

Embodiment 2

[0034] Such as figure 2 As shown, the heat pump water heater in this embodiment is based on the first embodiment above, the difference is that: the heat pump water heater in this embodiment includes a water tank, and the inside of the water tank is provided with a first liner 51 and a second liner 52 connected in series. The first inner container 51 is provided with a first water outlet pipe 512, and the second inner container 52 is provided with a water inlet pipe 521 and a second water outlet pipe 522. The water storage capacity of the first inner container 51 is also smaller than that of the second inner container 52. . Concretely, the water inflow of the first inner container 51 all comes from the water in the second inner container 52, like this, in the actual use process, the water enters the second inner container 52 to be heated and then enters in the first inner container 51 Further heating can output higher temperature water from the first inner tank 51, so that th...

Embodiment 3

[0042] Based on the specific structural forms of the heat pump water heaters in Embodiments 1 and 2 above, the defrosting method for the heat pump water heater includes: during the defrosting process, the high-pressure and high-temperature refrigerant output by the compressor enters the evaporator for heating and defrosting. The refrigerant output from the evaporator enters the first condensing part through the throttling device and exchanges heat with the water in the first inner tank. At the same time, the phase change energy storage component releases heat to continue heating the the water in the second inner tank, and the second inner tank is used to supply hot water to the outside.

[0043] Specifically, during the defrosting process, the evaporator is heated and defrosted by means of a four-way valve using the hot steam of the refrigerant. At this time, the condenser will release the cooling capacity. At this time, the first condenser in the condenser Participate in the ...

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Abstract

The invention discloses an air source heat pump water heater and a control method thereof. The heat pump water heater comprises a refrigerant flow path, wherein the refrigerant flow path comprises a compressor, a condenser, a throttling device and an evaporator which are connected together; a first inner container and a second inner container which are connected in series are arranged inside watertanks, the first inner container is provided with a first water outlet pipe, the second inner container is provided with a water inlet pipe and a second water outlet pipe, and a phase change energy storage part for absorbing and storing heat is further arranged in the second inner container; and the condenser comprises a first condensation part used for heating the first water tank, and further comprises a second condensation part used for heating the second water tank. The hot water output rate of the heat pump water heater is increased, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to an air source heat pump water heater and a control method thereof. Background technique [0002] At present, the heat pump water heater is a household appliance commonly used in people's daily life. The heat pump water heater usually includes a refrigerant flow path and a water tank. The refrigerant flow path includes a compressor, a condenser, an evaporator and a throttling device connected together. The heat generated is used to heat the water in the tank. In the process of the condenser heating the water in the water tank, the water in the water tank has the problem of high water temperature at the top and low water temperature at the bottom, which makes the water temperature in the water tank stratified seriously, which will also cause the condenser to heat the water tank There will be a problem of uneven pressure distribution, and the heating effect of the c...

Claims

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Application Information

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IPC IPC(8): F24H4/02F24H9/20
CPCF24H4/02F24H9/2007
Inventor 贾贾杨磊郑晓峰柴树昌李羲龙
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER