SU1390290A1 - Device for cleaning pavings from ice - Google Patents

Abstract

The invention relates to devices for cleaning ice formations from road and airfield pavements. The aim of the invention is to improve the quality of cleaning. The device for cleaning coatings from ice contains a casing 3, under which symmetrically with respect to the diametral plane, perpendicular to the direction of movement, are located the outlet openings of nozzles 1 for supplying heated gas jets and nozzles 5 for supplying heated water to the surface of the coating at an acute angle to it. The projections of the axes of adjacent nozzles 1 and 5 onto the horizontal plane intersect at an acute angle. The heated water is supplied from the nozzles 5 to the icy formations and destroys them, and the heated air from the nozzles I. dries the cleaned surface. The resulting steam is discharged from under the casing 3 through an outlet opening to the atmosphere. The directional impact of the jets of water and air from the nozzles 5 and 1 creates a swirling swirling flow with a high impact effect. 2 Il. (cl

Description

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The invention relates to devices for cleaning ice formations from road and airfield pavements,

The aim of the invention is to improve the quality of cleaning.

Figure 1 shows a device for cleaning coatings from ice, side view; in fig. 2 - section a - a in figure 1,

The device comprises a gas generator (not shown) with nozzles 1 for supplying a gas jet to the coating 2 at an acute angle. The casing 3 covers the outlet openings of the nozzles 1. In the upper part, the casing 3 contains an outlet opening 4. The device is supplied with a source (no poks1zan heated water with nozzles 5 supplying water jets to the coating 2 at an acute angle. The outlet openings of nozzles 1 and 5 are located . are symmetrically relative to the diametral plane 0-0, perpendicular to the direction of movement. The projections of the axes of adjacent nozzles 1 and 5 to the horizontal plane intersect at an acute angle. The nozzles 5 are located in front of the nozzles 1 in the direction of travel.

In operation, the device moves in the direction indicated by the arrow (Fig. 1). When the device is moved over the surface being cleaned, the coating 2 is pressurized with water through the nozzles 5 and the gas flow through the nozzles 1. In the cavity of the skin 3 in its lower part an ordered vortex movement of the working medium forms, and in the overlying layers - a vortex movement waste medium with suspended particles of the removable contaminant.

Each of the working medium jets serves as an obstacle for the subsequent jet on the way to the annular gap 6, which separates the wall of the casing 3 from the surface of the coating 2. This eliminates the working medium emissions into the space surrounding the casing 3 through the gap 6 due to the presence of excessive pressure casing cavity 3.

The jet treatment of the surface to be cleaned of the coating 2 is carried out in the following sequence.

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Heated water jets with high thermal potential, coming from the front group of nozzles 5, destroy the ice crust. The capture of the generated moisture and the drying of the surface produce heated gas jets coming from the rear group of nozzles 1. The supply pressure of the gas jets is set high enough to ensure full capture

liquids by gas jets.

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Maintaining the excess pressure inside the casing 3 allows eliminating air from the atmosphere through the annular gap 6 and discharging the waste medium from the upper part of the casing 3 through the opening 4 directly into the atmospheric space, where the possibility of wind transfer of moisture outside the cleaned surface area is used, for example x airfield. In the particular case, the device can be equipped with a system for collecting the liquid phase from the spent medium.

Claims (1)

Invention Formula An ice cleaning device containing a gas generator with nozzles for supplying heated gas jets to the coating at an acute angle to it, a cover, covering the outlet openings of the nozzles, and having an outlet opening in the upper part, characterized in that, in order to improve the quality of cleaning It is supplied with a source of heated water connected to nozzles for supplying water jets to the coating at an acute angle to it, the outlet openings of which are located under the casing in front of the nozzles for supplying gas jets in the course of the movement, while the output s nozzle openings for feeding gas and water jets arranged symmetrically about a diametral plane perpendicular to the direction of movement, and the projections of the axes of adjacent nozzles on a horizontal plane located under ostrm y | LOM. .2