Water heater capable of precisely controlling water use point temperature and control method thereof

A control method and technology for water heaters, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems affecting water experience, overheating or overcooling, waste of water, etc., to improve water experience and prevent overheating or supercooling effect

Pending Publication Date: 2020-11-27
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the control logic of judging whether preheating is completed by monitoring the return water temperature, there will be the following problems: 1. The water temperature at the actual water point may be overheated or too cold. The temperature distribution of the water stored in the circulation pipeline after heating is uneven, and the water temperature of the water points in different locations is different, which is quite different from the preset temperature, which affects the water experience
[0004] For the control logic of judging whether the preheating is completed by monitoring the outlet water temperature, there will be the following problems: 1. When the preset temperature is low, after the preheating function is turned off, the actual water point is far away from the water heater, especially in winter. 2. When the preset temperature is high, the water heater burns under heavy load but cannot reach the expected temperature, and wastes gas at the same time

Method used

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  • Water heater capable of precisely controlling water use point temperature and control method thereof
  • Water heater capable of precisely controlling water use point temperature and control method thereof
  • Water heater capable of precisely controlling water use point temperature and control method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] In this embodiment, the water heater is a zero-cold water gas water heater or a zero-cold water dual-purpose furnace. The electrical connection includes an electrical connection and a communication connection, wherein the communication connection includes a wireless communication connection and a wired communication connection.

[0037] see figure 1 , this embodiment provides a water heater that can accurately control the temperature of the water point, including a water heater body 1, a water inlet pipe 21, a water outlet pipe 22, a gas control valve 4 and a circulation pump 5, and the gas control valve 4 is arranged inside the water heater body 1 The air passage is used to control the on-off and opening of the gas, and the circulation pump 5 is arranged on the water inlet pipe 21 and used to pressurize and / or drive the water storage circulation of the water heater circulation pipeline. It also includes a return water temperature probe 6, an outlet water temperature p...

Embodiment 2

[0065] refer to Figure 4 , The difference between the water heater of this embodiment and Embodiment 1 is that it also includes an ambient temperature probe 9 . The ambient temperature probe 9 is arranged on the water heater body 1 and is electrically connected with the main controller 81 of the control assembly 8 for real-time monitoring of the ambient temperature T of the location of the water heater. 环境 . The main controller 81 of the control assembly 8 can be based on the ambient temperature T 环境 Automatically adjust the target temperature T 目 , the target temperature T 目 = preset temperature T s ± thermal temperature difference ΔT 预热 , where the preheating temperature difference ΔT 预热 as determined by the control assembly according to the ambient temperature T 环境 Any one of the results obtained by automatic matching, and other positions are the same as in Example 1.

[0066] It can be seen that the setting of the ambient temperature probe 9 enables the water heat...

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PUM

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Abstract

The invention discloses a water heater capable of precisely controlling water use point temperature and a control method thereof. The water heater comprises a water heater body, a water inlet pipe, awater outlet pipe, a gas control valve, a circulating pump, a return water temperature probe, an outlet water temperature probe and a control assembly, wherein the return water temperature probe is arranged on the water inlet pipe and used for real-time monitoring of return water temperature T<return>, the outlet water temperature probe is arranged on the water outlet pipe and used for real-time monitoring of outlet water temperature T<outlet>, and the control assembly is electrically connected with the gas control valve, the circulating pump, the return water temperature probe and the outletwater temperature probe respectively. After a preheating function of the water heater is activated, the control assembly can calculate the water use point temperature T<use> according to the outlet water temperature T<outlet> and the return water temperature T<return> monitored in real time, and can determine whether to finish preheating according to the size relationship of the water use point temperature T<use> and target temperature T<target>. The water heater can achieve precise control over the water use point temperature, the water use point temperature is effectively prevented from being too hot or too cold after the preheating, and the water use experience is improved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a technology for preheating and temperature control of water heaters. Background technique [0002] Zero-cold water gas water heaters have become a trend in the water heater industry because they can realize instant hot water. When the preheating function is started, the built-in circulation pump runs to drive the water stored in the external hot water pipe and return pipe to circulate and realize preheating. Conventional zero-cooled water gas water heaters generally determine whether preheating is completed by monitoring the return water temperature or the outlet water temperature. [0003] For the control logic of judging whether preheating is completed by monitoring the return water temperature, there will be the following problems: 1. The water temperature at the actual water point may be overheated or too cold. The temperature distribution of the water stored in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20F24H9/12F24H1/10
CPCF24H9/2035F24H1/107F24H9/13
Inventor 穆生鸿郭灵华郑来松史衍龙邓飞忠仇明贵潘叶江
Owner VATTI CORP LTD
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