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Water heater and control method thereof

A water heater and heat exchanger technology, applied in fluid heaters, heat pumps, refrigerators, etc., can solve problems such as untimely hot water supply, and achieve the effect of solving untimely hot water supply and meeting water demand

Pending Publication Date: 2021-02-12
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a water heater and its control method to at least solve the problem of untimely hot water supply in the prior art when the water consumption of the water heater increases

Method used

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  • Water heater and control method thereof
  • Water heater and control method thereof
  • Water heater and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A water heater is provided in preferred embodiment 1 of the present invention, specifically, figure 1 A schematic diagram showing an optional structure of the water heater, such as figure 1 As shown, this water heater includes:

[0031] Compressor 1, four-way valve 2, water side heat exchanger and air side heat exchanger 3 connected in sequence;

[0032] Wherein, the water-side heat exchanger includes: a first heat exchanger 4 and a second heat exchanger 5 arranged in series; the first heat exchanger 4 is located in the first hot water storage tank; the second heat exchanger 5 is located in the In the second hot water storage tank;

[0033] The water heater includes a direct heating mode, which is used to absorb the phase change heat of the water in the first heat storage tank through the first heat exchanger 4, and release the phase change heat through the second heat exchanger 5 to heat the second heat storage tank The water in the tank is for the user.

[0034] I...

Embodiment 2

[0064] In the preferred embodiment 2 of the present invention, a water heater control method is provided, which is applied to the water heater in the above embodiment 1. Specifically, Figure 5 An alternative flowchart showing the method, such as Figure 5 As shown, the method includes the following steps S502-S504:

[0065] S502: In the static heating mode, detect whether the outlet water temperature of the water heater can meet the user's demand;

[0066] S504: If the user's demand cannot be met, control the water heater to enter the direct heating mode.

[0067] In the above embodiment, the direct heating mode is added to the existing heating mode, the phase change heat of the water in the first hot water storage tank is absorbed through the first heat exchanger, and the phase change heat is released through the second heat exchanger , to heat the water in the second hot water storage tank for use by users. In this way, when the ordinary hot water mode cannot continue t...

Embodiment 3

[0072] Based on the water heater control method provided in the above-mentioned embodiment 2, in preferred embodiment 3 of the present invention, a storage medium containing computer-executable instructions is also provided, and the computer-executable instructions are used to Execute the water heater control method as above.

[0073] In the above embodiment, the direct heating mode is added to the existing heating mode, the phase change heat of the water in the first hot water storage tank is absorbed through the first heat exchanger, and the phase change heat is released through the second heat exchanger , to heat the water in the second hot water storage tank for use by users. In this way, when the ordinary hot water mode cannot continue to meet the user's hot water demand, the direct heating mode is started, that is, the heat is absorbed from the normal temperature water until it becomes a mixture of ice and water, and this part of the heat is used to heat the water on the...

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Abstract

The invention discloses a water heater and a control method thereof. The water heater comprises a compressor, a four-way valve, a water side heat exchanger and an air side heat exchanger, all of whichare connected in sequence. The water side heat exchanger comprises a first heat exchanger and a second heat exchanger, both of which are connected in series. The first heat exchanger is positioned ina first heat storage water tank. The second heat exchanger is positioned in a second heat storage water tank. The water heater comprises a direct heating mode and is used for absorbing phase change heat of water in the first heat storage water tank through the first heat exchanger and releasing the phase change heat through the second heat exchanger so as to heat water in the second heat storagewater tank to be used by users. According to the water heater and the control method thereof, the problem that in the prior art, hot water is not supplied in time when water consumption of the water heater is increased is solved, and the water demand of users is met quickly.

Description

technical field [0001] The present invention relates to the technical field of water heaters, in particular to a water heater and a control method thereof. Background technique [0002] Heat pump water heaters use the principle of thermodynamics to absorb heat from air or water and release it to the water supply side. Compared with electric or gas water heaters, the energy-saving effect is remarkable. At the same time, it is necessary to have a large enough heat exchanger to produce hot water. In consideration of economy, heat storage water heaters are usually used, so that the size of the water heater is small and the cost is relatively small. [0003] If the number of household water users fluctuates, the water consumption increases when there are many people, and the insufficient volume of the heat storage type will cause the hot water supply to be untimely or insufficient. The common practice is to compensate for heating with electric heating, which will increase power c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H4/02F24H9/20F25B30/02F25B41/325F25B41/20
CPCF24H4/02F24H9/2007F25B30/02F25B2600/2513
Inventor 袁明征刘志孝杨硕白国建
Owner GREE ELECTRIC APPLIANCES INC
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