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Control method of gas water heater and gas water heater

A technology of gas water heater and control method, which is applied to fluid heaters, lighting and heating equipment, etc., can solve problems such as the inability to dynamically display the gas combustion efficiency, the inability for users to intuitively understand the working conditions of the gas water heater, and the inability to use the gas water heater with confidence. , to achieve the effect of improving performance

Inactive Publication Date: 2018-07-03
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, controlling the operation of the gas water heater through the constant temperature of the outlet water temperature cannot keep the gas water heater in the best combustion condition.
[0003] Existing gas water heaters cannot dynamically display the combustion efficiency of gas, and cannot allow users to intuitively understand the working conditions of gas water heaters, and cannot use gas water heaters with confidence

Method used

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  • Control method of gas water heater and gas water heater
  • Control method of gas water heater and gas water heater
  • Control method of gas water heater and gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, a control method for a gas water heater provided in this embodiment includes:

[0034] S11. Detect the gas content of one or more gases in the flue gas at the flue gas outlet.

[0035] S12. Calculate the combustion efficiency according to the gas content, and obtain the air supply volume and the fan speed for maintaining the best combustion conditions according to the combustion efficiency.

[0036] S13. Adjust the speed of the fan according to the air supply volume and the speed of the fan in the best combustion condition.

[0037] This control method calculates the combustion efficiency through the content of one or more gases in the flue gas, and then obtains the air supply volume and fan speed to maintain the best combustion conditions, so that the fan speed can be adjusted in real time to provide the best Air supply volume, to achieve the best combustion conditions, thereby improving the performance of gas water heaters.

Embodiment 2

[0039] Such as figure 2 As shown, the control method provided in this embodiment includes:

[0040] S21. Detect the concentration of oxygen and the concentration of carbon monoxide in the flue gas at the flue gas outlet.

[0041] S22. Calculate the combustion efficiency according to the concentration of oxygen and carbon monoxide, and obtain the air supply volume and the speed of the fan to maintain the best combustion condition according to the combustion efficiency.

[0042] S23. Adjust the speed of the fan according to the air supply volume and the speed of the fan in the best combustion condition.

[0043] Step S24 is also included, displaying the calculated combustion efficiency.

[0044] By displaying the combustion efficiency value at that time in real time, users can understand the working conditions of the gas water heater more intuitively, so that they can use the gas water heater with more confidence.

Embodiment 3

[0046] Such as image 3 As shown, the present embodiment provides a gas water heater, comprising:

[0047] At least one gas sensor is used to detect the gas content of the corresponding gas in the flue gas at the flue gas outlet.

[0048] The control module 330 is used to receive the gas content signal sent by the gas sensor, calculate the combustion efficiency according to the gas content, and obtain the air supply volume and the speed of the fan 380 to maintain the best combustion condition according to the combustion efficiency.

[0049] The speed control module 340 is used to receive the air supply volume signal and the speed signal of the fan 380 sent by the control module 330 to maintain the best combustion condition, and adjust the speed of the fan 380 according to the air supply volume signal and the speed signal of the fan 380 .

[0050] Through the connection between the gas sensor, the control module 330 and the speed control module 340, the combustion efficiency c...

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Abstract

The invention discloses a control method of a gas water heater and the gas water heater, and relates to the field of gas water heaters. The control method of the gas water heater comprises the steps that gas content of one or more gases in flue gas at a flue gas outlet is detected, and combustion efficiency is calculated according to the gas content; the air supply amount and the rotating speed ofa fan used for maintaining the optimal combustion working condition are obtained according to the combustion efficiency; and the rotating speed of the fan is adjusted according to the air supply amount and the rotating speed of the fan in the optimal combustion working condition. The invention further discloses a gas water heater. The gas water heater comprises a gas sensor, a control module anda rotating speed control module. According to the control method of the gas water heater, the combustion efficiency is calculated through the content of one or more gases in the flue gas, then the airsupply amount and the rotating speed of the fan used for maintaining the optimal combustion working condition are obtained, and next the rotating speed of the fan can be adjusted in real time so as to provide the optimal air supply amount and to reach the optimal combustion working condition, so that performance of the gas water heater is improved.

Description

technical field [0001] The invention relates to the technical field of gas water heaters, in particular to a control method of a gas water heater and a gas water heater. Background technique [0002] Existing gas water heaters calculate the amount of heat and gas required to reach the user's set temperature by measuring the temperature of the inlet and outlet water, and then adjust the opening of the gas proportional valve to obtain the required amount of gas. By burning the gas, high-temperature flue gas is generated. The purpose of heating is achieved by using high-temperature flue gas to heat the cold water in the heat exchanger. In this process, the role of the fan is to provide sufficient air volume for the combustion of the gas passing through the gas proportional valve, and this air volume is a calculated value, which cannot be adjusted according to the combustion conditions and the composition of the flue gas. This control method does not consider the combustion eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
Inventor 管洋刘联产张鑫赵鹏
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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