Fan air volume adjustment method for gas water heater and gas water heater
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A gas water heater and fan air volume technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve problems such as unstable combustion of gas water heaters
Active Publication Date: 2021-05-18
VATTI CORP LTD
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Problems solved by technology
[0004] In order to solve the above problems, the present invention provides a fan air volume adjustment method for gas water heaters, which uses the secondary pressure as a parameter for air volume adjustment, and solves the problem of unstable combustion of existing gas water heaters under different pressures
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Embodiment 1
[0037] Embodiment 1 of the present invention provides a method for adjusting the fan air volume of a gas water heater, such as figure 1 As shown, the specific steps are as follows:
[0038] S1, user input preset temperature T 预设 ;
[0039] Specifically, the user sets the temperature through the control panel on the gas water heater;
[0040] S2, according to the preset temperature T in the S1 预设 Calculate the initial secondary pressure P 初始 , and according to the initial secondary pressure P 初始 Adjust the initial current I of the fan 初始 ;Specifically:
[0041] S21, calculate the initial secondary pressure P according to the following formula 初始 ;
[0042] P 初始 =k 1 qΔT
[0043] In the above formula, k 1 is a constant, q is the water flow, ΔT is the preset temperature T 预设 The absolute value of the difference with the inlet water temperature;
[0044] S22, calculate the initial current I according to the following formula 初始 ;
[0045] I 初始 =k 2 P 初始
[004...
Embodiment 2
[0060] Embodiment 2 of the present invention provides a gas water heater, such as Figure 4 As shown, the fan air volume adjustment method described in Embodiment 1 is applied, which includes a gas water heater body 1, a DC fan 2, a water flow acquisition unit 3, an inlet water temperature acquisition unit 4, an outlet water temperature acquisition unit 5 and a controller 6, Both the DC blower 2 and the controller 6 are located in the gas water heater body 1, the water flow acquisition unit 3 and the inlet water temperature acquisition unit 4 are arranged on the water inlet pipeline of the gas water heater body 1, and the outlet water temperature acquisition unit 5 is arranged On the outlet pipeline of the gas water heater body 1 , the DC fan 2 , the water flow acquisition unit 3 , the inlet water temperature acquisition unit 4 and the outlet water temperature acquisition unit 5 are all connected to the controller 6 .
[0061] The controller 6 is preset with a relationship cur...
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Abstract
The invention discloses a method for adjusting the air volume of a fan used in a gas water heater, which is specifically implemented according to the following steps: S1, the user inputs a preset temperature T 预设 ; S2, according to the preset temperature T in the S1 预设 Calculate the initial secondary pressure P 初始 , and according to the initial secondary pressure P 初始 Adjust the initial current I of the fan 初始 ; S3, gas water heater with the initial current I described in S2 初始 start; S4, according to the outlet water temperature, inlet water temperature and water flow rate to the initial secondary pressure P 初始 Adjust to obtain the actual secondary pressure P 实际 , and according to the actual secondary pressure P 实际 Calculate the actual current I of the fan 实际 ; S5, blower fan with the actual current I in the said S4 实际 run. The invention also discloses a gas water heater. The method for adjusting and controlling the fan air volume of the present invention does not need to increase additional costs, and only needs to adjust the fan current again according to the actual secondary pressure in the control program to solve the problem of unstable combustion of existing gas water heaters under different pressures.
Description
technical field [0001] The invention belongs to the technical field of gas water heaters, and in particular relates to a method for adjusting the air volume of a fan used in a gas water heater and the gas water heater. Background technique [0002] In order to improve the wind resistance performance of gas water heaters, the application of DC frequency conversion fans to gas water heaters has appeared in the market; [0003] However, the DC variable frequency fan basically adjusts the air volume according to the change of the gas proportional valve current, and this adjustment method cannot adapt to low gas pressure operation. When using proportional valve current adjustment, under normal gas pressure, the outlet water temperature is close to the preset temperature value, and the combustion is stable; Stable, the outside wind is easy to turn off the flame. Contents of the invention [0004] In order to solve the above problems, the present invention provides a fan air vo...
Claims
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Application Information
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