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Fan rotating speed control method, device, computer equipment and readable storage equipment

A technology of fan speed and control method, which is applied to the control of fan speed, computer equipment and readable storage devices, and can solve the problems such as the deviation of the corresponding relationship between the fan speed and the air volume, and the reduction of the matching accuracy of the air-fuel ratio.

Inactive Publication Date: 2020-08-18
SHENZHEN ALLIED CONTROL SYSTEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a fan speed control method, device, computer equipment, and readable storage device, aiming to solve the problem that the corresponding relationship between the fan speed and the air volume deviates in the actual application of the existing gas water heater, and the The problem that causes the accuracy of air-fuel ratio matching to decrease

Method used

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  • Fan rotating speed control method, device, computer equipment and readable storage equipment
  • Fan rotating speed control method, device, computer equipment and readable storage equipment
  • Fan rotating speed control method, device, computer equipment and readable storage equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 As shown, it is a schematic flow chart of a method for controlling the speed of a fan proposed by the present invention, and the method may include the following steps:

[0056] S110. Obtain the actual rotational speed of the operating point and the reference rotational speed of the fan at the operating point, and the reference rotational speed of the fan at the operating point is pre-stored in the machine.

[0057] In the present invention, the object of study is a gas water heater or a gas heating water heater, that is, the control method proposed by the present invention is used to control the speed of the fan in the gas water heater, so that the speed of the fan corresponds to the actual air volume.

[0058] It should be noted that, in this embodiment, the action point indicated above represents the lower limit value of the air volume of the gas water heater, and the action point is also a switch value. In practical applications, if the current air v...

Embodiment 2

[0076] Such as figure 2 As shown, it is a flow chart of a method for detecting combustion efficiency of a gas water heater proposed by the present invention, and the method may include the following steps:

[0077] S210. Control the speed of the fan to reach the actual speed of the fan under the current load.

[0078] As mentioned above, the actual fan speed at the current load calculated in step S130 in the first embodiment represents the load-speed relationship curve generated by the data stored in the prototype under standard operating conditions. That is to say, there is no deviation in the corresponding relationship between the calculated actual fan speed of the current load and the air volume.

[0079] For a fan whose rotation speed-air volume deviation has occurred, after calculating the calibrated actual fan speed under the current load through the method in the first embodiment, in order to detect whether the fan is at a certain speed under the actual fan speed Bet...

Embodiment 3

[0087] Such as image 3 As shown, it is a flow chart of the data acquisition method of the prototype proposed by the present invention under standard operating conditions, and the method includes the following steps:

[0088] S310. Obtain the reference fan speed for calibrating the operating point of the air volume or air pressure detection device under standard use conditions, and obtain the reference fan speed under different combustion loads.

[0089] It should be pointed out here that, in this embodiment, the operation object is a prototype machine, that is, a standard fan with no corresponding deviation between the fan speed and the generated air volume.

[0090] In this step, under standard operating conditions, the reference fan speed at the operating point of the fan is determined by calibrating the air volume or wind pressure detection device. At the same time, the reference fan speed corresponding to different combustion loads is obtained.

[0091] S320. Store the ...

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Abstract

The invention is applicable to the technical field of fuel gas equipment and provides a fan rotating speed control method, device, computer equipment and readable storage medium. The method comprisesthe steps that the actual rotating speed of an action point and a fan datum rotating speed of the action point are obtained; the fan datum rotating speed of the action point is stored into a computerin advance; a specific value between the actual rotating speed of the action point and the fan datum rotating speed of the action point is determined to the speed increase ratio; and the product of the fan datum rotating speed and the speed increase ratio under the current load is determined to be the fan actual rotating speed of the current load. According to the technical scheme, the problem ofconversion between the fan rotating speed and the air quantity on the condition with different wind resistances and fan aging can be solved, the air-fuel ratio matching precision is increased, and thus the combustion efficiency and the wind resisting ability of a water heater or a wall-hanging stove in the actual operation are improved.

Description

technical field [0001] The invention belongs to the technical field of gas equipment control, and in particular relates to a method, device, computer equipment and readable storage equipment for controlling the rotational speed of a fan. Background technique [0002] With the continuous development of the economy, people's living standards are constantly improving. In people's daily life, household appliances have become an indispensable device to ensure the standard of living. As a common household equipment, gas water heaters provide great convenience for people's lives. [0003] Specifically, the gas water heater is mainly composed of a valve body assembly, a main burner, a heat exchanger, and safety devices. In addition, the gas water heater also includes the flue of the flue type water heater and the forced exhaust device of the forced exhaust water heater. In the practical application of gas water heaters, generally, under the same wind resistance, the speed of the ...

Claims

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Application Information

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IPC IPC(8): F24H9/18F24H9/20F23L5/02F23L17/00F23N3/00
CPCF23L5/02F23L17/005F23N3/00F24H9/1836F24H9/2035F23N2233/02F23N2233/08
Inventor 不公告发明人
Owner SHENZHEN ALLIED CONTROL SYSTEM CO LTD