Water leakage detection method for water heater and water heater

Abstract

The invention discloses a water leakage detection method for a water heater, and relates to the technical field of water heaters. The detection method comprises the following steps of detecting waterflow rates at a water inlet and a water outlet of a water tank by utilizing a water flow sensor; and calculating the flow difference between the water inlet and the water outlet and comparing the flowdifference with a threshold value A preset by a controller, wherein if the flow difference is larger than the threshold value A, the controller controls an electromagnetic valve on a water inlet pipeto be closed, and meanwhile, an alarm device gives an alarm. The invention further discloses the water heater using the water leakage detection method for the water heater. The water leakage detection method and the water heater have the advantages that large-area water leakage of the water heater can be effectively prevented, the waste of water resources can be reduced, and the use safety of a user can be guaranteed; and meanwhile, the method is accurate in detection, and therefore the influence on the user caused by judgment errors of the water heater can be avoided.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a water heater leakage detection method and a water heater using the water heater leakage detection method. Background technique [0002] The water tanks of existing water heaters have pressure-bearing closed type and open type, etc. Among them, the pressure-bearing closed water tank and the tap water pipeline are connected in series and closed, and the top-water operation is adopted. As long as the user uses hot water, the water inlet pipe at the bottom of the water tank will automatically replenish. cold water. Although the water heater of this structure is easy to use, once water leakage occurs, it will cause greater losses to the user. Moreover, since gas water heaters are generally installed on balconies, which are relatively close to the outdoors, and the exhaust pipes communicate with the outdoor air, in cold winter, if no protective measures are taken, the water he...

AI Technical Summary

Problems solved by technology

Although the water heater of this structure is easy to use, once a water leak occurs, it will cause greater losses to the user.

Moreover, since gas water heaters are generally installed on balconies, which are relatively close to the outside, and the exhaust pipe is connected to the outside air, in the cold winter, if no protective measures are taken, the water heater will easily crack and cause water leakage.

[0003] In view of the above problems, the existing water heater products generally add a heating body to the water heater to avoid freezing and cracking through the work of the heating body, but limited by the power of the heating body and the extremely cold weather, the problem of freezing and cracking of the water heater still occurs from time to time

In addition, for water heaters that realize the antifreeze function through the thermostat and heating body alone, it is difficult for outside users to perceive when the antifreeze function is realized. If the temperature continues to drop, the problem of freezing cracks and water leakage will still occur; although some water heaters have adopted sound and light alarms and other measures, but it cannot fundamentally avoid the continuous leakage of the water heater tank

[0004] Based on the above, there is an urgent need for a water heater leakage detection method and a water heater to solve the problem that existing water heaters suffer losses due to freezing, cracking and water leakage.

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