RU178768U1 - DRAINER SPRAY - Google Patents

Abstract

The deluge spray is designed to extinguish fires with finely sprayed water. It consists of a body made in the form of a hollow part of the shape of the body of revolution, the internal cavity of the body has a vortex chamber at the inlet with a swirl located in it, formed by two flat identical inserts, then a cylindrical cavity, a confuser, a neck, a diffuser are sequentially arranged behind the vortex chamber.

Description

The deluge spray is designed to extinguish fires in automatic fire extinguishing installations with finely sprayed water.

The design of the sprinkler (spray) in the deluge version is known (see p. 181 L. M. Meshman, S. G. Tsarichenko, V. A. Bylinkin, V. V. Aleshin, R. Yu. Gubin. Water and foam automatic sprinklers fire extinguishing installations. Teaching aid M. 2002), which consists of a housing, inside of which there is a vortex chamber with tangential slots, the walls of which are located at an angle to the surface of the chamber.

In the well-known drencher, fluid flows from the housing under pressure into the vortex chamber. Thanks to the guide slots, the flow is twisted and crushed inside the vortex chamber, from where the liquid exits through the outlet in the form of a filled conical stream of atomized jets.

A centrifugal sprinkler is known (see patent No. 30275), which consists of a housing, bushings and an insert placed therein, connected by a threaded connection and having screw grooves on the outer surfaces, and an adapter connected by a thread to the housing, and two coaxial vortex chambers are formed having two coaxial outputs. When water is supplied to the sprayer, the flow enters the distribution chamber, enters the screw grooves of the sleeve and the liner, twists in coaxial vortex chambers, and is sprayed through coaxially made openings through the outlet.

In the above-described devices, by means of vortex chambers inside the atomizer, centrifugal forces are used, due to which a conical stream of atomized jets is obtained when the stream exits through the outlet (s) (s).

A disadvantage of the known devices is the complex and high-cost manufacturing technology of the components of the atomizer, the high cost of manufacturing.

The purpose of the utility model is to reduce the cost of manufacture and simplify the design of the sprayer.

This goal is achieved by the fact that a deluge atomizer is made, consisting of a housing, inside which a vortex chamber is located, according to a utility model, the housing is made in the form of a hollow part of the shape of a body of revolution, the input part of the part has a connecting threaded surface, a groove with an installed a retaining ring, behind which a cavity of the vortex chamber is made with a swirl located in it, which is formed by two flat planes located in mutually perpendicular planes identical inserts having opposite directions with respect to the flow direction of the extinguishing agent, while the insert has a contour mating with the wall of the vortex chamber, made in the form of a semi-ellipse with two protrusions extending to the side of it, forming a groove approximately 1.5 times wide between them more than the thickness of the plate, and the output part of the housing further behind the vortex chamber is made in the form of a cylinder passing into the confuser, a narrowing cylindrical neck is formed behind the confuser, passing in the diffuser.

On the outer surface of the housing in its middle part a belt is made in the form of a hexagon.

The centrifugal atomizer is explained in more detail using the drawings shown in FIG. 1, 2, 3, 4, 5.

FIG. 1 is a front view of a spray gun;

FIG. 2 is a sectional view of the housing;

FIG. 3 is a perspective view of a nebulizer with a cutout;

FIG. 4 is an isometric view of a swirl assembly;

FIG. 5 is a top view of the liner;

FIG. 6 is a view of the liner on the right.

The deluge atomizer consists of a housing 1 having a connecting thread 2, the inner cavity in which the first cylindrical part 3, the second cylindrical part 4, the confuser 5, the third cylindrical part (neck) 6, passing into the diffuser 7, are made, while in the first cylindrical part a groove 8 with a retaining ring 9 installed therein, a swirler 10 formed by two identical inserts 11 is placed behind the ring, the insert having an external contour in the form of a semi-ellipse 12 and two protrusions 13 extending from the insert, with an image by groove between them 14.

The atomizer operates as follows. The extinguishing agent will enter the inlet cylindrical part 3, which, together with the swirler 10 forms a vortex chamber in which the flow swirls, then the flow is accelerated in the confuser 5, forms untwisted jets that pass through the neck 6 and the diffuser 7, the opening angle of which determines the shape, structure and dispersion of the quenching torch.

After a comparative analysis with known analogues it is clear that the proposed design is very simple and consists of a simple, obtained by casting or turning from a hexagon body; contains two identical inserts obtained by stamping a metal sheet; complemented by standard purchase snap ring.

Moreover, the assembly of the structure is elementary simple.

The above properties of the device allow to achieve the goal of reducing the cost and simplification of the product.

Claims (2)

1. A deluge sprayer, consisting of a housing inside which a vortex chamber is located, characterized in that the housing is made in the form of a hollow part of the shape of a body of revolution, the inlet part of the part has a connecting threaded surface, a groove with a snap ring installed inside it is made inside with which the cavity of the vortex chamber is made with the swirl located in it, which is formed by two flat identical inserts located in mutually perpendicular planes having opposite directional slopes with respect to the direction of flow of the extinguishing agent, while the liner has a contour mating with the wall of the vortex chamber, made in the form of a semi-ellipse with two protrusions extending to the side of it, forming a groove approximately 1.5 times wider than the plate thickness, and the outlet part of the housing, further downstream of the vortex chamber, is made in the form of a cylinder passing into the confuser; behind the confuser, a tapering cylindrical neck is formed, passing into the diffuser. 2. The deluge sprayer according to claim 1, characterized in that a hexagonal belt is made on the outer surface of the housing in its middle part.

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