CN2472491Y

CN2472491Y - Pulse irrigation device

Info

Publication number: CN2472491Y
Application number: CN 00218174
Authority: CN
Inventors: 张国贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-27
Filing date: 2000-06-27
Publication date: 2002-01-23
Anticipated expiration: 2010-06-27

Abstract

A pulse irrigation device pertains to a plate micro-irrigation device applied in agriculture. The emitter of the micro-irrigation device-dropping irrigation device which is used now in the world commonly has the problem of physic plug and biologic plug. The utility model applies the computer output the PWM signal to orderly and timely open or close one or more than one electromagnet valves(1) which are in series with the main water pipe(4); the hundreds of emitters(3) which are connected with pluralities of throttleers(2) with thin wall and small holes supply water to the root of plants in micro-quantity. The small water tank(6) of constant water source(5) supplies water to the main water pipe(4), and the constant water source(5) is controlled by the water weir(8) in the small water tank(6).

Description

Pulse irrigation device

The utility model relates to a kind of agricultural minimum plant and irrigates equipment-Pulse irrigation device.

At present, it is drip irrigation appliance that the known agricultural plant trace that is most widely used is irrigated equipment, as shown in Figure 1, adopts constant-current source (5), and the plastic capillary (2) of length more than one meter and the water dropper (3) of end thereof through drawing with water main (4) supply water to plant.Owing to, be difficult to the flow uniformity that assurance is in the water dropper (3) of water main (4) different parts along the journey pressure drop; The elongated hole throttling that this device adopts, flow and viscosity are inversely proportional to, (when the viscosity of water in the time of 10C ° is 30C ° 1.6 times), the flow temperature influence of water dropper (3) is very big; Long plastic capillary (2) aperture more than a meter only is 0.2-0.3mm, very easily produces physics and stops up; Moreover the trace of its continuous water supply formula is irrigated, and certainly will make the interior flow velocity of plastic capillary (2) extremely low, and microorganism very easily attaches to tube wall and finally causes biological the obstruction in the water.

The purpose of this utility model is that the physics of avoiding adopting expensive filter effectively to solve micro-irrigation rig stops up and biological blockage problem.

The purpose of this utility model is achieved in that and adopts computer programmable pulsewidth modulation (PWM) signal regularly to open and close a plurality of magnetic valves in turn, hundreds of water droppers through linking with several thin-walled hole throttle type flow distributors are to the little quantitative water supply of each plant root.System is supplied water by Heng Shuitouyuan.

Because adopt such scheme, this device has following advantage: 1) flow distributor adopts thin-walled orifice restriction mode, and flow and viscosity are irrelevant, not influenced by water temperature; 2) the flow distributor throttle diameter is 0.6-2.0mm, and the physics that particle causes in the effectively anti-sealing stops up; 3) the flow distributor throttle orifice goes out water speed and can reach more than the 1m/s, can prevent that microorganism from attaching to tube wall and the biology that causes stops up; 4) Heng Shuitouyuan supplies water and has avoided the flow pulsation problem of constant-current source water supply; 5) the Timing water supply mode can reduce the system water pump power in turn; 6) system's Automatic Control.

An embodiment of the present utility model is as shown in Figure 2: Heng Shuitouyuan (5) is supplied water to little water tank (6) by water pump (7), the head of the height control Heng Shuitouyuan (5) of the weir board (8) in the little water tank (6).The water outlet of little water tank (6) through water main (4) and magnetic valve (1) to each flow distributor (2), each flow distributor (2) through the coupled water dropper of dozens of (3) to the little quantitative water supply of each plant root.The flow distributor (2) that a magnetic valve (1) controlled dozens of is coupled, each magnetic valve (1) is is regularly opened and closed in turn by pulsewidth modulation (PWM) signal of calculator output, and opening and closing time is programmable at interval, thus trace is regulated water supply speed on request.

Claims

1. agricultural plant Pulse irrigation device is characterized in that:

Heng Shuitouyuan is through adopting the pulsewidth modulation able to programme of calculator output

(PWM) signal regularly opens and closes in turn and is parallel to water main (4)

On one or more magnetic valves (1), again through and the thin-walled aperture

Hundreds of the water droppers (3) that throttle type flow distributor (2) links,

To the little quantitative water supply of each plant root.

2. according to the Pulse irrigation device of claim 1, its feature exists

In: water main (4) is by the little water tank (6) of Heng Shuitouyuan (5)

Supply water, permanent head is by the weir board (8) in the little water tank (6)

Control.