ADJUSTMENT AND REMOTE CONTROL SYSTEM WITH A PRESSURE REGULATOR FOR IRRIGATION SYSTEMS

Abstract

Adjustment and remote control system with a pressure regulator for irrigation systems to regulate the water pressure at the outlet, and consequently its flow, being crucial to assure the uniformity and the quantity of water as applied. In the adjustment and remote control system for pressure in irrigation systems, the electronic control board is informed of the target pressure at the outlet of the pressure regulator as disclosed in this document; it reads the current pressure of the adjustment and control system by means of the electronic pressure sensor and, if the pressure is lower than the target, a solenoid valve for pressure increase is activated, using the pressure generated by a pressure generator in any given fluid, and, if the pressure is higher, that pressure is reduced.

Claims

1. Adjustment and remote control system with a pressure regulator for irrigation systems, comprising an electronic control board (91), a pressure regulator (41), an electronic sensor pressure (80), a solenoid valve for pressure increase (61), a pressure generator for fluids (101), a solenoid valve for pressure reduction (71), tubes (51), nozzles/orifices (21), located so that the electronic control board (90) may receive the target pressure on the nozzles/orifices (20), receive the current pressure from the adjustment and control system, sent by the electronic pressure sensor (80), and activate the solenoid valve for pressure increase (60) or the solenoid valve for pressure reduction (70) by means of the pressure generated by the air compressor (41).

2. Adjustment and remote control system with a pressure regulator for irrigation systems according to claim 1, in which the pressure generator for fluids (101) is an air compressor.

3. Adjustment and remote control system with a pressure regulator for irrigation systems according to claim 1, in which the pressure generator for fluids (101) is an hydraulic pump.

4. Pressure regulator for irrigation systems, comprising sealing rings (20), a diaphragm (40), a connection orifice (60) and a pilot tube (70), having a plunger (50) with a protuberance which, on the other hand, is fixed to one of the faces of a diaphragm (40), said plunger (50) being located crosswise to the diaphragm (40), being displaced towards the water inlet; and, on the other face of the diaphragm (40), the pressure control chamber (30) is located, filled in with fluid, and said pressure control chamber (30) receives fluid feed through a pilot tube (70).

Description

DESCRIPTION OF THE DRAWINGS

[0017] The description below and the related figures as examples will bring better understanding of the object of the present invention.

[0018] FIG. 1 shows an embodiment scheme of the pressure regulator for irrigation systems (41).

[0019] FIG. 2 shows a scheme of the pressure adjustment and remote control system.

DETAILED DESCRIPTION OF THE INVENTION

[0020] The pressure adjustment and remote control system for irrigation systems comprises an electronic control board (91), a pressure regulator (41), an electronic pressure sensor (80), a solenoid valve for pressure increase (91), a pressure generator for fluids, preferably and air compressor (101), a solenoid valve for pressure reduction (71), tubes (51), and nozzles/orifices (21).

[0021] In the pressure adjustment and remote control system for irrigation systems, the electronic control board (90) is informed of the target pressure on the nozzles/orifices (20). It reads the current pressure in the adjustment and control system by means of the electronic pressure sensor (80). If the pressure is below the target, the solenoid valve for pressure increase (60) is activated, by using the pressure generated by the pressure generator for fluids (101). If the pressure is above the target, the solenoid valve for pressure reduction (70) is activated. This process generates controlled pressure inside the reference pressure tubes (50) which, on the other hand, adjust the water outlet pressure in the guided pressure regulators (40), thus varying the water flows on the nozzles/orifices (20).

[0022] Based on the figures, the embodiment of the mechanical pressure regulator (4) for irrigation systems has the ability to remotely adjust the water outlet pressure, by means of a guiding system activated by air, water, oil or any other liquid or gaseous fluid, as an external pressure reference. Its functional principle, as presented by FIG. 1, is based on the displacement of the plunger (50) creating more or less pressure drop inside the regulator.

[0023] The pressure regulator (41) comprises a plunger (50) having a protuberance connected to one of the faces of a diaphragm (40), so to allow the plunger (5), which is located crosswise to the diaphragm (40), to be displaced towards the water inlet, clogging it. On the other face of the diaphragm (40), the pressure control chamber (30) is located, filled in with fluid, so to displace the plunger (50) to the opposite direction to the water inlet.

[0024] The operation of the pressure regulator (41) is performed from the plunger (50), which is fixed crosswise to a diaphragm (40), so that said plunger (50) suffers the effort on one of its faces, caused by the water outlet pressure, forcing the plunger (50) to be displaced so to restrict the entrance of water, thus reducing the outlet pressure. On the other side of the diaphragm (40), on its other face, the pressure control chamber (30) is located, which, according to the pressure inside it, regulated by the fluid feed received from the pilot tube (70) connected to the chamber by the connection orifice (6), will exert an opposite force, making the plunger (50) to be displaced, so to release the entrance of water. With the regulator in operation, the plunger (50) is displaced until finding a position wherein the water outlet pressure is the same as the pressure in the pressure control chamber (30).

[0025] Therefore, the working principle of said pressure regulator (41) is based on displacing the plunger (50), thus creating more or less pressure drop inside the regulator. Embodiment variants of said pressure regulator (41) may exist, concerning its shape, number of chambers or constructive parts, but not losing the characteristics of the inventive concept as disclosed herein.