Mode switch control method of hot water system of heat pump

A heat pump hot water and mode switching technology, applied in fluid heaters, lighting and heating equipment, mechanical equipment, etc., can solve the problems of slow heating speed and insufficient hot water supply, and achieve improved comfort and hot water supply. ability to solve the effect of poor user comfort

Inactive Publication Date: 2018-12-21
GUANGDONG PHNIX ECO ENERGY SOLUTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a mode switching control method of a heat pump hot water system to solve the problem of the slow heating speed of the existing circulating water heater and the hot water supply of the direct heating water heater when the demand for hot water is large. Insufficient technical problems, so as to effectively realize the integration of circulation and direct heating modes of heat pump water heaters, improve the hot water supply capacity of heat pump water heaters, and thus help to improve user comfort

Method used

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  • Mode switch control method of hot water system of heat pump
  • Mode switch control method of hot water system of heat pump
  • Mode switch control method of hot water system of heat pump

Examples

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Comparison scheme
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no. 1 example

[0069] See Figure 1 to Figure 4 , the first embodiment of the present invention provides a mode switching control method for a heat pump hot water system, which is suitable for the heat pump hot water system, and the heat pump hot water system includes a heat pump unit 1, a water storage tank 11, and a water supply pipeline;

[0070] Wherein, the first water outlet end of the water storage tank 11 communicates with the water inlet end of the heat pump unit 1 to form a first pipeline, and the water inlet end of the water storage tank 11 and the water outlet end of the heat pump unit 1 communicate with and form a second pipeline, and the water outlet end of the water supply pipeline is connected to the first pipeline;

[0071] The water storage tank 11, the first pipeline, the heat pump unit 1 and the second pipeline are sequentially connected to form a circulating heating circuit;

[0072] The water supply pipeline, the first pipeline, the heat pump unit 1, and the water stor...

no. 2 example

[0115] See Figure 5 , on the basis of the first embodiment of the present invention, the heat pump hot water system further includes a first one-way valve 32 and a first electromagnetic two-way valve 3 electrically connected to the controller, the constant pressure water pump 14 and The first electromagnetic two-way valve 3, the first one-way valve 32, and the outlet end of the water supply pump 13 are sequentially connected to form a hot water recovery circuit C;

[0116] The method also includes:

[0117] After closing the constant pressure water pump 14, open the first electromagnetic two-way valve 3 and the water supply pump 13 to start the hot water recovery mode, and recover the hot water in the hot water recovery circuit C to the heat pump Unit 1 is heating.

[0118] In this embodiment, the heat pump hot water system is provided with a hot water recovery circuit C, which can recycle and heat the unused hot water of the user through the hot water recovery circuit C, a...

no. 3 example

[0120] On the basis of the first embodiment of the present invention, the heat pump hot water system further includes a temperature sensor 22 for detecting the water temperature of the water storage tank 11, and the temperature sensor 22 is electrically connected to the controller; the method Also includes:

[0121] When the heat pump hot water system is running, keep the heat pump unit 1 in the open state, detect the open / close state of the water level switch 21 and obtain the current temperature of the water storage tank 11 through the temperature sensor 22 Hot water temperature value;

[0122] When it is detected that the water level switch 21 is disconnected, it is determined that the water storage tank 11 is in a low water level state;

[0123] When the current hot water temperature value is less than the preset first target temperature value R02, switch to the circulating heating mode;

[0124] When the current hot water temperature value is greater than or equal to th...

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Abstract

The invention discloses a mode switch control method of a hot water system of a heat pump. The method comprises the following steps: when the hot water system of the heat pump operates, keeping a heatpump unit in a started state; when the hot water system operates in a circulating heating mode, starting a circulating water pump of a first pipeline and keeping a valve of a water supply pipeline inan opened state, and detecting the current flow of the water supply pipeline in real time; when the current flow of the water supply pipeline is greater than the preset minimum flow, stopping the circulating water pump to switch to a direct heat type heating mode; when the hot water system operates in the direct heat type heating mode, opening the valve of the water supply pipeline and closing the circulating water pump; when a water level switch of a water storage tank is closed, starting the circulating water pump and closing the valve of the water supply pipeline or decreasing the opennessof the valve of the water supply pipeline to switch to the circulating heating mode. The method provided by the invention integrates the circulating and direct heat type heating modes of a hot watermachine of the heat pump effectively and improves the hot water supply ability of the hot water machine of the heat pump, so that the using comfort of a user is improved favorably.

Description

technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to a mode switching control method of a heat pump water heating system. Background technique [0002] At present, the heat pump water heater adopts the heat pump principle to increase the heat energy in the air to a high level of heat energy. It has the advantages of energy saving and environmental protection when used to prepare hot water, and has gradually been widely used. According to the heating mode of the heat pump water heater, it is divided into a circulating water heater and a direct heating water heater. [0003] The circulating hot water machine continuously draws cold water from the bottom of the water storage tank into the heat pump unit for heating, and the hot water heated by the heat pump enters the top of the water storage tank through the outlet pipe, and the user draws hot water from the inside of the water storage tank through the water end use;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H4/02F24H9/12F24H9/20
CPCF24H4/02F24H9/2028F24H9/139
Inventor 李干春冯勇强罗金星高翔王俊
Owner GUANGDONG PHNIX ECO ENERGY SOLUTION
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