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Fan air volume adjusting method for gas water heater and gas water heater

A gas water heater, fan air volume technology, applied to fluid heaters, lighting and heating equipment, etc., can solve problems such as unstable combustion of gas water heaters

Active Publication Date: 2020-03-27
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Fan air volume adjusting method for gas water heater and gas water heater
  • Fan air volume adjusting method for gas water heater and gas water heater
  • Fan air volume adjusting method for gas water heater and gas water heater

Examples

Experimental program
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Effect test

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 draught fan air volume adjusting method for a gas water heater. The method is specifically implemented through the following steps: S1, enabling a user to input a preset temperature T preset; S2, calculating the initial secondary pressure P<initial> according to the preset temperature T<preset> at step S1, and adjusting the initial current I<initial> of a fan according tothe initial secondary pressure P<initial>; S3, starting the gas water heater at the initial current I<initial> at step S2; S4, adjusting the initial secondary pressure P<initial> according to the water outlet temperature, the water inlet temperature and the water flow to obtain the actual secondary pressure P<actual>, and calculating the actual current I<actual> of the fan according to the actualsecondary pressure P<actual>; S5, enabling the fan to actually operate at the actual current I<actual> at step S4. The invention further discloses the gas water heater. According to the method, extracost does not need to be increased, and the problem that an existing gas water heater is unstable in combustion under different pressures can be solved only by adjusting the current of the fan againaccording to the actual secondary pressure in a control program.

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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IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 夏立珍邓飞忠吴桂安仇明贵潘叶江
Owner VATTI CORP LTD
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