High-sensitivity large-flow water flow sensor

Abstract

The invention relates to a high-sensitivity large-flow water flow sensor in the technical field of water heaters, a hollow shell is divided into four cavities through a longitudinal partition plate and a transverse partition plate, a first overflowing hole and a second overflowing hole are formed in the longitudinal partition plate, and a third overflowing hole and a fourth overflowing hole are formed in the transverse partition plate; the first water cavity and the second water cavity are connected through a first overflowing hole, and the transverse partition plate is located between the first overflowing hole and the second overflowing hole. The third water cavity is connected with the first water cavity through a third overflowing hole, the third water cavity is connected with the fourth water cavity through a second overflowing hole, the fourth water cavity is connected with the second water cavity through a fourth overflowing hole, a water flow baffle shielding the first overflowing hole is arranged in the second water cavity, and a magnet is arranged on the water flow baffle. A magnetic induction element corresponding to the magnet is arranged in the wall of the shell; a spring and a valve element are arranged in the fourth water cavity, and the valve element abuts against the opening portion of the second overflowing hole through the spring. The sensor is high in sensitivity and large in flow, and can be used in various water heaters.

Description

technical field [0001] The invention relates to a water flow sensor, in particular to a water flow sensor for a water heater. Background technique [0002] Due to the popularization of solar hot water applications, stand-alone and centralized operation are very common, and there are other forms of heat source water heaters such as air energy water heaters, etc., but the water tank is on the roof or far away from the water point, and the hot water pipes with long pipes will have pipeline cold water treatment Problem, the current common practice in the industry is: constant temperature cycle, temperature difference cycle to achieve tube cycle constant temperature, the general time is 24 hours. The heat loss of the hot water pipe is small in the heat preservation state, but there is still heat loss; if the pipe is long, coupled with the low ambient temperature (large temperature difference), the heat loss of the constant temperature cycle is relatively large. The main greater ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the water flow sensor has a small flow rate and a slow flow rate, and the user waits for a long time

The root of it is that there is a natural contradiction between sensitivity and large flow rate, and the existing technology cannot achieve both

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