Gas-electric combined type water heater

Abstract

The invention relates to the field of household appliances, in particular to a water heater. A gas-electric combined type water heater comprises a casing, a gas heating mechanism, a cold water inlet pipe and a hot water outlet pipe, wherein the gas heating mechanism is arranged in the casing, the cold water inlet pipe and the hot water outlet pipe are arranged at the bottom of the casing, the cold water inlet pipe is communicated with a water inlet of the gas heating mechanism, a water storage box is further arranged in the casing, an electric heating pipe and a temperature sensor are arranged in the water storage box, a water outlet of the gas heating mechanism is communicated with a water inlet of the water storage box, and a water outlet of the water storage box is communicated with the hot water outlet pipe. The gas-electric combined type water heater provided by the invention has the advantages that water in the water storage box is firstly preheated when the water heater is needed for use; during use, the water stored in the water storage box can neutralize the temperature of discharged water, so that the discharged water can be prevented from abrupt temperature changes; when the discharged water is cooled, additional heating can be further achieved through the electric heating pipe in the water storage box. Therefore, the gas-electric combined type water heater improves the bathing comfort, and is particularly suitable for users suffering from an unstable water pressure.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a water heater. Background technique [0002] With the improvement of living standards, water heaters have become an essential household appliance; the existing water heaters are divided into three types: electric water heaters, gas water heaters and solar water heaters, among which solar water heaters are greatly affected by regional sunshine and climate, and the cost is relatively high, so It is not widely used; while electric water heaters and gas water heaters have their own advantages and disadvantages; [0003] The advantage of an electric water heater is that it is easy to install, easy to use, and not affected by the difference in air pressure between natural gas floors. It is easy to grow scale; although there are some instant electric water heaters, the power of instant electric water heaters is high, and ordinary households basically cannot use them; [0004] Gas ...

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Problems solved by technology

[0002] With the improvement of living standards, water heaters have become an essential household appliance; the existing water heaters are divided into three types: electric water heaters, gas water heaters and solar water heaters, among which solar water heaters are greatly affected by regional sunshine and climate, and the cost is relatively high, so It is not widely used; while electric water heaters and gas water heaters have their own advantages and disadvantages;

[0003] The advantage of an electric water heater is that it is easy to install, easy to use, and not affected by the difference in air pressure between natural gas floors. It is easy to grow scale; although there are some instant electric water heaters, the power of instant electric water heaters is high, and ordinary households basically cannot use them;

[0004] Gas water heaters have the advantages of high thermal efficiency, fast heating speed, and continuous use by multiple people. In winter, hot water can be supplied to the kitchen at any time, which is very convenient to use. However, the water temperature of gas water heaters fluctuates greatly. The linkage valve is realized by adjusting the combustion according to the water inflow. This adjustment method is easily disturbed by the water inflow pressure, especially when the water inflow pressure is unstable or too low, the water heater may automatically shut down, resulting in hot and cold outlet water, affecting The comfort of bathing is compromised; when this happens in cold weather, it may also catch cold, which affects human health

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