Today, I will introduce a national invention authorized patent - a multifunctional water meter. The patent was applied for by Cao Peisen and He Yaohua, and the authorization was announced on August 17, 2016.
Content descriptionThe invention relates to a water meter, in particular to a multifunctional meter for collecting pH value, turbidity, chlorine concentration, pressure and flow.
Background of the InventionThe existing tap water meters have the following disadvantages: they can only measure the water consumption when the flow is large, and cannot measure the small and micro flow; the mechanical transmission structure is used for measurement, and the measurement accuracy is low; the structure is complex, the manufacturing difficulty is large, and the production cost is high; Parameter acquisition and processing. Therefore, a new technical solution is required to solve the above-mentioned technical problems.
SUMMARY OF THE INVENTIONIn order to overcome the above-mentioned defects, the present invention provides a multifunctional water meter, which is simple in structure, convenient in manufacture and small in size; a large rotor flowmeter and a small rotor flowmeter are used to measure the small micro flow, and the measurement accuracy is high.
The technical scheme adopted by the present invention in order to solve the technical problem is: a multifunctional water meter, which includes a casing, a large flow measurement chamber, a hardware chamber and a small and micro flow measurement chamber, and the casing is provided with a water pipe access port and a water pipe The water pipe inlet is communicated with the large flow measuring cavity, the water pipe connecting outlet is communicated with the small and micro flow measuring cavity, and the large flow measuring cavity and the small and micro flow measuring cavity are communicated with each other through an electric control valve, A generator and an impeller that drives the generator to rotate are arranged in the large flow measuring cavity, a large rotor flowmeter and a small rotor flowmeter are arranged in the small micro flow measuring cavity, and a correction shaft is arranged in the large flowmeter. , the large rotor in the large rotor flowmeter is sleeved on the correction shaft, the aperture of the large rotor flowmeter gradually becomes smaller from top to bottom, and the aperture of the small rotor flowmeter gradually increases from top to bottom, so A signal processing module is arranged in the hardware room, and the generator, the large rotor flowmeter, the small rotor flowmeter and the electric control valve are all connected with the signal processing module.
The invention measures the small and micro flow through the small rotor flowmeter, measures the slightly larger flow through the large rotor flowmeter, and measures the flow under normal conditions through the impeller power generation. Level up. In addition, the water flow can also be cut off through the electric control valve 7 to close the waterway. The whole process can be monitored electronically, and the monitoring data can be fed back to the water company in time, which is convenient for the water company to supervise and manage each user.
Further, a pH value sensor, a turbidity sensor, a chlorine concentration sensor and a pressure sensor are arranged in the water pipe connection outlet, and the pH value sensor, the turbidity sensor, the chlorine concentration sensor and the pressure sensor are all connected to the signal processing module.
Still further, an energy storage battery is arranged in the hardware room, and the energy storage battery is connected to the generator.
Furthermore, an external data port is reserved on the signal processing module, and the signal processing module can automatically or remotely open and close the electric control valve.
The present invention has the advantages of simple structure, convenient manufacture, small size, and high measurement accuracy by using two rotor flowmeters and measuring small and micro flow in stages.
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