Water path switching control module and switching control method for water heaters

A technology of control module and water circuit switching, applied in heating mode, water heater, fluid heater, etc., can solve the problems of poor applicability, large pipe modification and complexity, and achieve the effect of continuous hot water supply

Active Publication Date: 2012-05-09
A O SMITH CHINA WATER HEATER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This connection method is not only complicated, but also greatly

Method used

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  • Water path switching control module and switching control method for water heaters
  • Water path switching control module and switching control method for water heaters
  • Water path switching control module and switching control method for water heaters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The water heater water circuit switching control module of this embodiment is as follows: figure 1 and figure 2 As shown, including switching valve C controlled by the control circuit. A is a volumetric electric water heater as the first water heater, and B is a gas water heater as the second water heater. Switching valves such as image 3 As shown, there are four interfaces at intervals of 90 degrees, that is, the first interface 1 communicated with the cold water source, the second interface 2 communicated with the cold water inlet of the electric water heater, the third interface 3 communicated with the hot water outlet of the gas water heater, and the The fourth interface 4 connected to the hot water outlet of the electric water heater mainly has three switching positions. Dangru image 3 (A) When it is in the first position, only the first interface is connected to the second interface, and the cold water source is connected to the inner tank of the electric w...

Embodiment 2

[0045] The basic structure of this embodiment is the same as that of Embodiment 1, except that the first temperature sensor S1 is set in the hot water outlet pipe of the electric water heater to measure RT 电 In addition, a second temperature sensor S2 is set at the outlet of the gas water heater to measure RT 气 .

[0046] Its control process is as Figure 6 As shown, after starting up, start the switching valve motor to rotate first to prevent it from sticking, and then judge whether the smart mode combining electricity and gas is selected. The valve is in the first position, judge the water temperature RT measured by the first sensor 电 Whether the temperature rises continuously by 3°C to determine whether to start bathing;

[0047] The second step is to determine whether the water temperature has stopped rising for more than 1 minute as a predetermined condition to determine the RT 电 Whether it reaches the peak value, if so, go to the third step, otherwise continue to jud...

Embodiment 3

[0053] The water heater water circuit switching control module of this embodiment is as follows: Figure 7 and Figure 8 As shown, the difference from the first embodiment is that the second water heater is a solar water heater, and the connection relationship of the switching valve can be deduced from the embodiment, so no further description is given.

[0054] Control circuit see Figure 4 , the first temperature sensor S1 and the second temperature sensor S2 are respectively arranged in the hot water outlet pipes of the electric water heater and the solar water heater.

[0055] After starting up, when the energy-saving mode is selected, the steps of the control circuit to realize switching control are as follows: Figure 9 As shown, the details are as follows:

[0056] The first step is to first control the switching valve to be in the second position, and judge the temperature rise T of the electric water heater outlet water detected by the first temperature sensor. 出 ...

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PUM

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Abstract

The invention relates to a water path switching control module and a switching control method for water heaters, belonging to the technical field of household appliances. The water path switching control module comprises a switching valve controlled by a control circuit, wherein the switching valve has a first interface, a second interface, a third interface and a fourth interface, and at least has three switching positions; when the switching valve is located at the first position, only the first interface and the second interface are communicated; when the switching valve is located at the second position, only the second interface and the third interface are communicated; when the switching valve is located at the third position, only the third interface and the fourth interface are communicated; the control circuit includes a Micro Control Unit (MCU) and at least one first temperature sensor mounted at the hot water outlet of a first water heater; an output end of a first temperature sensor is connected with a corresponding signal input end of the MCU; and a control output end of the MCU is connected with a controlled end of the switching valve. In this way, according to temperature monitoring and reasonable preset conditions, the water path switching control module for the water heaters can realize required automatic and steady switching between two water heaters conveniently with the help of the control circuit.

Description

technical field [0001] The invention relates to a tube switch control device, in particular to a water heater water channel switch control module and a switch control method, belonging to the technical field of water heater switch control. Background technique [0002] Volumetric electric water heaters, gas water heaters and solar water heaters are the most commonly used types of water heaters with their own advantages. Among them, the electric water heater has a long service life, high efficiency, energy saving, safety, and environmental protection. It can be hidden in a closet or on a balcony without being exposed or occupying an area. The water temperature will drop after the water is used); the gas water heater can be used while burning, and the hot water supply is not limited, but after it is turned on, it needs to wait for a short time due to the discharge of the initial cold water section of the pipe, and after the water is turned off during use, due to the thermal in...

Claims

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Application Information

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IPC IPC(8): F24H9/20F24S90/00
CPCY02B10/20F24D2200/14Y02B10/70F24D12/02F24D2200/08Y02B30/14F24D19/1024F24D2200/04Y02B10/40F24D17/0036F24D17/0068F24D19/1051F24H1/185F24H9/20Y02B30/00F24H15/219
Inventor 茹兴鹏朱冬伟邵小荣徐济安杨一楠李志
Owner A O SMITH CHINA WATER HEATER CO LTD
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