[0013] The present invention provides an energy-saving gas water heater. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0014] like figure 1 Shown is a structural diagram of an energy-saving gas water heater according to a preferred embodiment of the present invention. The energy-saving gas water heater includes a water heater body, and there are three water tanks inside the water heater body, namely a hot water tank 101, a cold water tank 102 and The constant temperature water tank 103, wherein the hot water tank 101 and the cold water tank 102 are juxtaposed, the hot water tank 101 and the cold water tank 102 are respectively connected (that is, communicated through corresponding water pipes) to the constant temperature water tank 103, and a The first temperature sensor 104 is used to detect the temperature of the hot water entering. The constant temperature water tank is connected with a water outlet pipe, and the water outlet pipe is connected to the shower nozzle. A second temperature sensor 105, signal processor 106 and control device are arranged at the water outlet pipe of the constant temperature water tank. , the signal processor 106 receives the temperature signal from the second temperature sensor 105, and the control device controls the outlet pipe to discharge water. Hot water comes out of the hot water tank, and cold water comes out of the cold water tank. The two enter the constant temperature water tank for mixing to reach the required water temperature, and a control switch is set on the outlet pipe of the constant temperature water tank.
[0015] Further, a speed regulating device electrically connected to the first temperature sensor and the second temperature sensor is provided at the water outlet of the cold water tank, and the speed regulating device receives the first temperature sensor and the second temperature sensor. The temperature signal of the sensor can control the cold water outlet speed according to the temperature signals of the first temperature sensor and the second temperature sensor. The water in the cold water tank is used to mix the water in the hot water tank. The temperature signal sensed by the temperature sensor of the constant temperature water tank is the temperature of the user’s bathing water. More preferably, when the temperature difference between the water temperature of the constant temperature water tank and the water temperature of the hot water tank is not large, the speed regulating device controls the water outlet speed of the cold water to be relatively slow. When the temperature is high, the speed regulating device controls and controls the water speed to accelerate, so that the temperature of the constant temperature water tank reaches the water temperature for bathing as soon as possible.
[0016] Further, different temperature values are preset in the signal processor, and when the temperature signal is equal to the preset temperature value, the water outlet pipe is controlled to discharge water. The temperature sensor installed at the water outlet senses the outlet water temperature, that is, the temperature of the bath water. This temperature can be set manually. When the water outlet temperature is lower than the preset temperature, the flow rate of the cold water pipe becomes smaller or stops, and the hot water pipe flows out to make it reach the temperature of the bath water. Only when the temperature reaches the preset temperature, the outlet pipe will The water is discharged, so the requirement of constant temperature is met, and there is no need to let the water go in vain in order to make the temperature reach the desired temperature, wasting resources.
[0017] Further, the water outlets of the hot water tank and the cold water tank are set at the bottom of the water tank, the water inlet pipes entering the constant temperature water tank are set at the top of the constant temperature water tank, the water is discharged from the bottom of the hot water tank and the cold water tank, and then enters the water from the top of the constant temperature water tank, so that The neutralization of the water is faster, and the gravity of the water does not require more electricity to control the flow of the water, saving electricity and reducing the time people wait for a bath.
[0018] Further, the temperature sensor is a thermal resistance temperature sensor, of course it is not limited to a thermal resistance temperature sensor, other temperature sensors can achieve the purpose of the present invention.
[0019] In summary, in the present invention, three water tanks are installed in the water heater, hot water is output from the hot water tank, cold water is output from the cold water tank, neutralization is carried out in the constant temperature water tank, and a temperature sensor and a control device are installed at the water outlet of the constant temperature water tank. When the temperature reaches the preset temperature value, the outlet pipe is controlled to discharge water, so that the water temperature is constant, and the waste of water resources caused by waiting for the temperature to be constant is avoided.
[0020] It should be understood that the application of the present invention is not limited to the above examples, and those skilled in the art can make improvements or transformations according to the above descriptions, and all these improvements and transformations should belong to the protection scope of the appended claims of the present invention.
