SU1648289A1 - Dripper - Google Patents

Abstract

The invention relates; to drip irrigation devices and can be used for irrigation of various agricultural crops. The purpose of the invention is to increase reliable performance and efficiency. Dropper with top; tg cover 2 with inlet fitting 3 installed on the irrigation pipe and 6 1 under outlet 13 in the lower part of housing 1. The dropper is fitted with a compensation chamber 7 installed in the housing coaxially with the feeding fitting 3 7. In the upper part of the chamber there is a hollow elastic corrugated element 10, having the shape of a truncated cone. The cavity of the compensation chamber is in communication with the irrigation piping by channel 6 and fitting 5. The upper base 11 is made rigid and provided with a sealing element 12. Sealing element 12 contacts the opening 4 of the supply fitting 3, the edge of which is made with an inner chamfer. The water flow is regulated by changing the gap between the hole 4 and the sealing element 12. The water jet is extinguished by the stencils of the dropper cap 2, the rigid base 11 and freely flows through the outlet 13.1 Il, 3 ate from N 00

Description

The invention relates to drip irrigation devices and can be used for irrigation of various agricultural crops.

The purpose of the invention is to increase the reliability and efficiency of work.

The drawing shows the proposed dropper, incision.

The dropper consists of a body 1, to which a lid 2 is threaded, having a supply nipple 3 with an opening 4, the edge of which is made with an inner chamfer,

A fitting 5 is connected to the body of the dropper 1, which through the channel 6 is connected to a compensation chamber 7, the top of which has an outer tooth 8, which serves to fix the upper part of the chamber, consisting of an elastic ring 9 and a corrugated hollow truncated cone 10, a rigid base 11 and a sealing ring. element 12, in the lower part of the body of the dropper is the outlet 13.

Dropper works as follows.

At the beginning of irrigation, in the absence of pressure in the irrigation pipeline, water flows simultaneously through the inlet fitting 3 into the dropper cavity and through fitting 5, channel b to the compensation chamber 7. The gap between the sealing element 12 and the opening 4 remains constant, less than the inner diameter of the inlet fitting 3. This is required in order for suspended particles that penetrate the dropper through the inlet fitting 3. to freely pass through the gap between the sealing element 12 and the edges of the opening 4. Water h pressure enters the cavity of the dropper. Suspended particles flow freely into the irrigated area through the outlet 13, which diazgr is larger than the internal diameter of the inlet fitting 3. The dropper automatically flushes.

When there is pressure in the irrigation piping, the corrugated hollow truncated cone 10 expands, the rigid base 11 rises and the sealing element 12 fastened on it closely approaches the two points of the opening 4. Water with a slight pressure passes through the gap between the sealing elements and the surface of the opening 4.

With increasing pressure in the irrigation piping, the sealing element 12 partially overlaps this gap and the stronger, the more elastic the material of the element 12, which is chosen experimentally with

so that the gap does not completely overlap even at the maximum pressure in the irrigation pipe. The dropper consumption does not decrease at the same time due to

increase flow rates. The stream of water flows out of a jet, hits the inner walls of the lid 2 and the rigid base 11, extinguishes and freely flows freely to the irrigation area through the outlet 13.

The area of the rigid base 11 is adjusted so that, at an average pressure P in the irrigation pipe, the flexible elastic element 12 closely approaches two points of the orifice 4. At the same time, the force to be created by the rigid base with an area S is equal to the sum of the tensile forces of the corrugated hollow truncated cone F and overcoming the efforts of the oncoming jet of water passing through

connecting nipple 3, the cross-sectional area of the inner hole of which Si, i.e.

5. + R 81,

where P is the average pressure in irrigation

pipeline;

F - tensile force of a corrugated hollow truncated cone, depends on the stiffness of the material from which it is made.

Then the hard base area is

S

F-bP-Si

At the end of irrigation, the pressure in the irrigation piping decreases. The corrugated hollow truncated cone 10 is compressed. The suspended parts accumulated in utecre of the contact of the elastic elastic element 12 with the edges of the opening 4 are released, washed with water residues from the irrigation pipeline and carried away by the irrigation section through the outlet 13.

Claims (1)

DETAILED DESCRIPTION OF THE INVENTION A dropper having a lid with an inlet installed on an irrigation pipe and a water outlet in the lower part of the body, characterized in that, in order to increase reliability and efficiency of operation, it is equipped with a coaxially installed in the body. a fitting of a compensation chamber, in the upper part of which a hollow elastic corrugated element having the shape of a truncated cone is fixed, while the cavity of the compensation chamber communicates with 516482896 irrigation piping by means of a catenary in contact with the hole, nal and choke, and the upper base of the supplying choke, the edge of which is rigid and provided with a sealing lip with an inner chamfer.