Automatic fault detection method for gas water heater

A gas water heater, automatic detection technology

Active Publication Date: 2020-05-12
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] In the prior art, the main method to solve the lack of air pressure and howling of the gas water heater is to adjust the nozzle aperture of the burner, but the method of adjusting the nozzle aperture will still occur when the air pressure environment changes, and it cannot completely solve the flameout , howling faults, and after each fault is eliminated,

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  • Automatic fault detection method for gas water heater
  • Automatic fault detection method for gas water heater
  • Automatic fault detection method for gas water heater

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Such as Figure 1 ~ Figure 4 As shown, this embodiment discloses a test method for hot water performance of a gas water heater, especially a test method for low-pressure combustion flameout and combustion whistle faults of a gas water heater. The test method includes the following steps:

[0027] (1), first, initialize the combustion control parameters of the gas water heater, and restore the combustion control parameters to the default parameter values ​​of normal combustion; wherein, the initialized control parameters include the theoretically calculated fan speed R 理论 and the actual fan speed R 实际 The difference △R, theoretically calculated proportional valve output current I 理论 and the actual proportional valve output current I 实际 The difference △I, and the following conditions are met: △R=0, △I=0, that is, the gas water heater b...

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Abstract

The invention discloses an automatic fault detection method for a gas water heater. The automatic fault detection method is characterized by comprising the steps of (1) initializing combustion controlparameters of the gas water heater; (2) determining whether the gas water heater meets the combustion working conditions or not; (3) determining whether the water flow is stable or not; (4) determining whether a low-voltage fault and/or a howling fault is detected for the first time or not; (5) adjusting the control parameters of the gas water heater according to the fault type; (6) storing the control parameters; and (7) entering the normal combustion working mode. The automatic fault detection method has the advantages that the control parameters of the gas water heater are adjusted and memorized, when the low-voltage condition and/or the howling condition occurs again in the next combustion process, the rotating speed of a fan and the current of a proportional valve can be directly andautomatically adjusted to a normal combustion state so as to avoid a low-voltage alarm and/or a howling alarm.

Description

technical field [0001] The invention relates to a fault detection method for a gas water heater, in particular to a fault automatic detection method for low-pressure combustion flameout and combustion whistle of the gas water heater. Background technique [0002] At present, many areas and households have adopted natural gas as fuel, but in the winter of central heating, there will be a problem of local natural gas supply shortage, and gas water heaters will burn out and scream when the ambient air pressure is relatively low. Wait for failure. [0003] In the prior art, the main method to solve the lack of air pressure and howling of the gas water heater is to adjust the nozzle aperture of the burner, but the method of adjusting the nozzle aperture will still occur when the air pressure environment changes, and it cannot completely solve the flameout , howling faults, and after each fault is eliminated, the next time the same fault occurs when the machine is turned on, it w...

Claims

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Application Information

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IPC IPC(8): F24H9/20F23N1/02
CPCF23N1/025F24H9/2035
Inventor 陈茂军秦刚王雪娇
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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