RU2409024C1 - Dropper - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: dropper includes vessel with inlet and outlet nozzles. Vessel comprises locker element, entering outlet nozzle. In outlet channel of lower vessel part there is a drop feed controller. Drop feed controller consists of three composite parts. Upper conical part is a locker element. Average threaded part with thread pitch T is the channel for water passage. Lower part has a conical element with concave surface. Concave surface generatrix is arranged with gradual increase of angle and is described by the following equation:

where R - radius of conical element base; α - final angle of tangent turn to generatrix curve, α<90°.

EFFECT: design makes it possible to improve efficiency of drop sprinkling and to improve reliability of dropper operation.

2 cl, 3 dwg

Description

The invention relates to land reclamation and can be used for irrigation of gardens, greenhouse and other crops.

Known dropper [1], having a housing with inlet and outlet nozzles. The housing has a rubber diaphragm and a stem. The disadvantage of this technical solution is:

- ineffective to use at low pressures in the network;

- low operational reliability;

- uneven water supply.

The closest technical solution is a dropper [2] having a body with inlet and outlet nozzles. A float with a locking element is installed in the housing. The latter is mounted in the outlet pipe. The locking element is made in the form of a threaded sleeve, a rod and a threaded cover. The internal cavity of the threaded sleeve is equipped with multi-thread thread winding. The rod is provided with annular grooves. The disadvantage of this technical solution is:

- design complexity and low operational reliability;

- the ability to clog the hull and canals with mineral and vegetable litter;

- a small range and uneven supply of water;

- low efficiency when used in mountainous areas.

The purpose of the invention is improving the efficiency of drip irrigation, improving the reliability of the dropper.

This goal is achieved in that the upper part of the body is mechanically connected to the lower part of the body, at the bottom of which is a rubber gasket. The rubber gasket ensures a tight connection between the two parts. Water is supplied to the dropper through the inlet pipe, which is connected to the water supply pipe. The output is through the outlet pipe, which houses the droplet feed regulator (figure 1). The droplet flow regulator consists of an upper conical and a middle threaded part. Between the thread and the inner surface of the outlet pipe are formed channels through which water flows. The water flow rate depends on the thread pitch T. With increasing thread pitch T, the dimensions of the channels increase and the flow rate increases. The water flow can be controlled by the depth of penetration of the droplet feed regulator, which can be mechanically screwed into the outlet pipe, increasing resistance to flow and reducing flow. The droplet flow regulator focuses on the upper conical part in the outlet of the lower part of the housing and completely blocks the water supply. To improve the drop yield with a decrease in the force of adhesion of water to the side surface, the droplet feed regulator in the lower part has a conical element with a concave generatrix. The surface of the conical element is concave and at the generatrix the rotation angle to the end will increase gradually to the value α of the final rotation angle (Fig. 2). Consequently, the tangent of the angle of inclination of the tangent to the curve of the generatrix toward the end increases linearly

where K is the coefficient of proportionality; x, y - respectively, the abscissa and the ordinate of the curve generatrix in the Cartesian coordinate system; α is the final angle of rotation of the tangent to the curve of the generatrix, α <90 °; R is the radius of the base of the cone.

Separating and integrating this equation, we obtain:

dy

=Kxdx;

dy

= Kxdx;

We find from the last equation the values of the coefficients C and K. Knowing that at the origin x = 0 and y = 0, we find C.

0 = 0 + C; C = 0.

Knowing that at the end of the curve, when x = H, where H is the projection of the generatrix onto the axis Ox, the angle of the curvilinear fastening is α, and therefore

Thus, the equation of the curve in the Cartesian coordinate system has the form

Отсюда

From here

Bearing in mind the last formula, the equation of the curve in the Cartesian coordinate system can be rewritten as

where R is the radius of the base of the cone.

A mesh filter is placed inside the dropper body, which prevents the entry of litter and clogging of the channels (Fig. 3). The strainer can be periodically removed from the top of the housing and cleaned.

Figure 1 shows a dropper, a General view in section; figure 2 - regulator supply drops; figure 3 is a section aa, figure 1.

The upper part of the housing 1 is connected to the lower part of the housing 2, at the bottom of which there is a rubber gasket 3. Water is supplied to the dropper through the inlet pipe 4, and the output is through the output pipe 5, which houses the droplet supply regulator 6. The droplet supply regulator 6 consists of the upper conical 7 and the middle threaded portion 8, which forms channels 9 for water to pass through them. The droplet flow regulator 6 in the lower part has a conical element 10 with a concave generatrix 11. A filter 12 is placed inside the dropper body.

A dropper works as follows. The upper part of the housing 1 is mechanically connected to the lower part of the housing 2, at the bottom of which there is a rubber gasket 3. The rubber gasket 3 provides a tight connection between the two parts. Water is supplied to the dropper through the inlet pipe 4, which is connected to the water supply pipe.

The output is through the outlet pipe 5, which houses the droplet feed regulator 6 (Fig. 1). The droplet flow controller 6 consists of an upper conical 7 and a middle threaded part 8. Between the thread and the inner surface of the outlet pipe 5, channels 9 are formed through which water flows. The water flow rate depends on the thread pitch T. With increasing thread pitch T, the flow rate increases. The water flow rate can be controlled by the depth of penetration of the droplet feed regulator 6, which can be mechanically screwed into the outlet pipe 5, increasing the resistance to the flow movement and reducing the flow rate of the dispensed water. To improve the droplet yield with a decrease in the adhesion force, the droplet feed regulator 6 at the bottom has a conical element 10 with a concave generatrix 11. The surface of the conical element 10 is concave and the angle of rotation of the generatrix 11 will gradually increase to the value α of the final rotation angle (Fig. 2). Therefore, the tangent of the angle of inclination of the tangent to the curve of the generator 11 towards the end increases linearly

where K is the coefficient of proportionality; x, y - respectively, the abscissa and the ordinate of the curve forming in the Cartesian coordinate system; α is the final angle of rotation of the tangent to the curve of the generatrix, α <90 °; R is the radius of the base of the cone.

Separating and integrating this equation, we obtain:

dy=Kxdx;

dy = Kxdx;

We find from the last equation the values of the coefficients C and K. Knowing that at the origin x = 0 and y = 0, we find C.

0 = 0 + C; C = 0.

Knowing that at the end of the curve, when x = H, where H is the projection of the generatrix onto the axis Ox, the angle of the curvilinear fastening is α, and therefore

Thus, the equation of the curve in the Cartesian coordinate system has the form

Отсюда

From here

Bearing in mind the last formula, the equation of the curve in the Cartesian coordinate system can be rewritten as

, где R - радиус основания конуса.

where R is the radius of the base of the cone.

A mesh filter 12 is placed inside the dropper body, which prevents the entry of litter and clogging of the channels 9 (Fig. 3).

This technical solution improves the efficiency of the dropper and increases the range of adjustable flow. The dropper is also possible with small pressures for irrigation in greenhouses.

Used sources

1. Maslov B.S., Minaev I.V., Huber K.V. Reference for land reclamation. - M.: Rosagropromizdat, 1989 (p. 165-166) (Analog).

2. Patent of the Russian Federation No. 2275012 A01G 25/02, Dropper / Saldaev Alexander Makarovich; Shchedrin Vyacheslav Nikolaevich; Shcherbinin Alexander Vasilievich .; Application 09/09/14; publ. 2006.04.27. (Prototype).

Claims (2)

1. A dropper comprising a housing with an inlet and outlet nozzles and with a locking element included in the outlet pipe, characterized in that in the output channel of the lower part of the housing there is a droplet feed regulator consisting of three components, the upper conical part is a locking element, middle the threaded part with a thread pitch T is a channel for the passage of water, and the bottom has a conical element with a concave surface, the generatrix of which is made with a gradual increase in the angle and is described by the equation

,
where R is the radius of the base of the conical element; α is the final angle of rotation of the tangent to the curve of the generatrix, α <90 °. 2. The dropper according to claim 1, characterized in that the thread pitch T is selected and depends on the required flow rate of the water supply.

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