Gas water heater capable of improving pressurizing effect

Abstract

The invention discloses a gas water heater capable of improving the pressurizing effect. The gas water heater comprises a gas water heater body, a water pump, a water inflow temperature detection unit, a water outflow temperature detection unit, a current sensing unit and a controller. The water pump and the current induction unit are arranged on a water way in the gas water heater body, the waterinflow temperature detection unit and the water outflow temperature detection unit are arranged at the water inflow end and the water outflow end of the water way separately, and the water pump, thewater inflow temperature detection unit, the water outflow temperature detection unit and the current sensing unit are all connected with the controller. The water pump is a double-stage pressurizingor multi-stage pressurizing water pump. The water pump capable of achieving cyclic pressurizing is arranged in the gas water heater body capable of improving the pressurizing effect, the number of centrifugal impellers of the water pump is increased, the multiple stages of impellers are pressurized stage by stage, the pressurizing capacity is greatly improved, the water pump is simple in structureand small in size, upgrading and improving of the structure of an existing water heater are facilitated, and the development input is reduced.

Description

technical field [0001] The invention belongs to the technical field of water heaters, and in particular relates to a gas water heater capable of improving the supercharging effect. Background technique [0002] At present, more and more water heaters on the market are equipped with water pumps to achieve pressurization and zero cold water functions. The main principle is: after turning on the supercharging function of the water heater, the built-in water pump operates to increase the flow rate and enhance the bathing experience; when the water heater is in standby mode, the zero-cold water preheating function is turned on, and the built-in water pump drives the pipeline to circulate and heat the stored water, so that the water can be turned on immediately Instantly hot. [0003] The ordinary type of water pump has only one centrifugal impeller, and its pressurization capacity is limited. Moreover, the pressurized or zero cold water water heaters on the market generally only...

AI Technical Summary

Problems solved by technology

[0003] The ordinary type of water pump has only one centrifugal impeller, and its pressurization capacity is limited. Moreover, the pressurized or zero cold water water heaters on the market generally only have one water pump installed. When the water supply pressure is low or the pipe resistance is large, it cannot Achieving a sufficient pressurization effect will affect the large flow requirements of the bath, and will cause the zero cold water preheating time to be too long

In order to solve the above problems, some water heaters install two or more water pumps in series internally to improve the boosting effect, but this method leads to larger volume and higher price of the water heater, which reduces the market competitiveness of the product

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