Energy-saving single-magnet type electromagnetic flowmeter, circuit and magnetic circuit all for agricultural irrigation

Abstract

The invention relates to a watering control method for environment protection and garden greening, relates an energy-saving single-magnet type impeller suspension electromagnetic flowmeter, a circuit and a magnetic circuit all for agricultural irrigation, and discloses a novel electromagnetic flowmeter, a circuit and a water-saving method. The electromagnetic flowmeter comprises a flow adjustable water dropper, a 360-degree nozzle, a joint which can be finely turned, a spraying timer and a water distributor. By the aid of stepped rolling, a one-stage rotation manner for an impeller turns to be a multiple-stage rotation manner, the relative linear velocity is decreased, the friction is smaller, and the precision is higher by the use of the single-magnet type impeller. The electromagnetic flowmeter can be used for efficient garden irrigation, saves energy and water, and can be used for high-precision flow metering. Single-magnet steel needles (581) are arranged on blades of the impeller, so that the counting precision can be higher. The length of the single-magnet steel needle (581) on each blade of the impeller is in the radial direction of the diameter of the impeller. The magnetic tip portion of each single-magnet steel needle is higher than the external diameter of the impeller by more than 0.1mm, so that a monopole of a magnetic field is closer to a magnetic induction strips without faults.

Description

technical field [0001] The invention relates to a control method for water flow used in environmental protection and landscaping, which is an energy-saving single-magnetic type electromagnetic flowmeter for irrigation of agriculture and forestry, a circuit and a magnetic circuit, including a new type of electromagnetic flowmeter, a circuit and a water-saving method. Contains flow-adjustable drippers, 360-degree nozzles, fine-tuning joints, sprinkler timers, and water distributors. With advanced rolling assistance, the impeller changes from one-stage rotation to multi-stage rotation, so that the relative linear velocity is reduced and the friction is more accurate. Small, single magnetic type impeller makes precision more accurate. Background technique [0002] The desire to pursue environmental protection and landscaping is endless; there are also many patents on the control method of watering water flow, and the timing switch of garden sprinklers controlled by both sides of...

AI Technical Summary

Problems solved by technology

Existing products vary, and none of them are perfect; there is a certain nozzle (55ac), such as Figure 31 As shown, the water is connected to the nozzle seat (55c) of the certain nozzle (55ac) through the matching components and then sprayed out through the only small square hole provided on the nozzle cap as the water nozzle (55a3c). Its disadvantage is that the range of sprayed water is narrow, and it cannot have a 360-degree all-round irrigation effect.

Another nozzle (55ad) for existing products, such as Figure 32 As shown, the water is connected to the nozzle seat (55c) of the certain nozzle (55ad) through the matching components, and is sprayed out through the large through hole opened on the half side of the nozzle cap as the water nozzle (55a3d) , its shortcoming is that the range of sprayed water is only half, and cannot have a 360-degree all-round irrigation effect

The existing electromagnetic flowmeter is made based on Faraday's principle of electromagnetic induction. When the conductor cuts the magnetic force line in the magnetic field, an induced potential proportional to the liquid flow rate is generated, and is detected by the electrode in contact with the liquid, so that it is converted by the cable. After intelligent processing, the communication and control between the flow data and the computer are realized. The existing electromagnetic flowmeter includes a measuring tube, an inlet flange, an outlet flange, electrodes, an excitation wire, a measuring tube housing, a circuit board and The display device, in which the measuring tube, the inlet flange, the outlet flange and the measuring tube housing are all made of metal materials, the disadvantages of using metal materials are: the weight of the entire flowmeter is relatively large, and it is inconvenient to install and maintain. The work efficiency is affected by the cooperation of people; and the cost of metal materials is high, which makes the price of the finished flowmeter more expensive; therefore, it is necessary to improve the existing electromagnetic flowmeter

Images