SU1566173A1 - Apparatus for supplying air to moving mechanism cab - Google Patents

Abstract

The invention relates to ventilation and serves to supply air to the cabin of a moving mechanism, preferably a bridge crane. The purpose of the invention is to expand the functionality. Hollow beams are used as a receiver for storing compressed air, and the air is dispensed through an air distributor made in the form of two cones 8 and 9 coaxially placed with a gap of 7, the outer cone 8 is provided with perforations 11 in the lower part, and the inner cone 9 at the top of the perforation 11. 3 Cp. 4 il.

Description

(21) 4422216 / 23-29

(22) 05/10/88

(46) 05.23.90. Bul No. 19

(71) Special Design Bureau for underground self-propelled mining equipment

(72) Oh. V. Senschikov

(53) 697.92 (088.8)

(56) USSR Copyright Certificate No. 877254, cl. F 24 F 7/04, 1979.

(54) DEVICE FOR AIR SUPPLY TO CABIN OF MOVING MECHANISM

(57) The invention relates to the ventilation and serves to supply air to the cabin of the shearing mechanism, preferably a bridge crane. The purpose of the invention is to expand the functionality. Hollow beams are used as a receiver for storing compressed air, and the air is dispensed through an air distributor made in the form of two cones 8 and 9 coaxially placed with a gap of 7, the outer cone 8 is provided with perforations 10 in the lower part, and the inner cone 9 - in the upper part of the perforation 11 2 з п. P-ly, 4 silt

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The invention relates to ventilation and serves to supply fresh air to the cabin of a moving mechanism, preferably a bridge crane.

The purpose of the invention is to enhance the functionality.

FIG. 1 shows an air supply device, a general view; in fig. 2 - air distributor; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 2

The device for supplying air to the cabin 1 of the moving mechanism, preferably a bridge crane with guide beams 2, has a conduit 3 connected to an overpressure source (not shown) with mechanical valves 4 and 5 connected to a receiver and an air distributor 6.

The air distributor 6 is made in the form of 7 cones 8 and 9 coaxially placed with a gap of 7, the outer cone 8 being provided with perforations 10 in the lower part, and the inner cone 9 providing perforations 11 in the upper part, which is directed opposite to the direction of rotation of the air flow; parts of the outer cone 8 are made tangentially forming a cone 8 and directed in the direction of rotation of the air flow in the annular gap 7. The cone 8 is provided with a swirler 12 flow.

The receiver is made in the form of hollow beams 2, interconnected by a pipe 13, and the valve nozzle 5 is equipped with a pressure gauge 14.

Air distributor 6 is connected to receiver 2 by pipe 15, in which filter 16 is placed, valve 17, heater 18, and part of pipeline 15 has a telescopic connection 19. Beams 2 on the other hand can have an additional valve 20.

The device works as follows.

To fill the beams 2 with compressed air, the check valve 5 is in contact with the valve 4 of the pipeline 3, through which the compressed air flows into the beams 2. At the same time, the control valve 17 is closed. When the permissible pressure inside the beams 2, which is fixed by the pressure gauge 14, is reached, the compressed air supply stops. When the cabin 1 is moved, the valves 4 and 5 are disengaged, and the air supply to the cabin 1 occurs due to the air supply in the beams 2. To supply air to the crane cabin 1, the control valve 17 is opened and the compressed air enters the pipeline 15, is cleaned in the filter 16 can be heated in the heater 18 (electricity or other energy source) and through the telescopic section 19 enters the air distributor 6, where it is twisted in the swirler 12, enters the annular gap 7 between the cones 8 and 9. When air flow moves Once in the gap 7, part of the air passes through the perforation 11 into the inside of the cone 9, from where it enters the cabin 1 in the form of a low-velocity jet of low speed, and the other part of the stream goes through the gap 7 in the form of an annular flow shielding the workplace of the crane operator. When this occurs, the ejection of internal air through the perforation 10 into the annular gap 7.

In addition, the presence of an additional valve 20 on the other side of the beams 2 makes it possible to supply compressed air and neighboring cranes operating in the same span, i.e. in this case, beams 2 serve as pipelines.

In the absence of hollow beams in the structure, inflatable structures or gas holders, cylinders or air ducts of circular cross-section closed from the ends can be used to store air.

Claims (3)

1. A device for supplying air to the cabin of a moving mechanism, preferably an overhead crane with guide beams, containing a pipeline connected to an overpressure source with mechanical valves, connected to a receiver and an air distributor, characterized in that, in order to expand its functionality, the air distributor is the form of cones coaxially placed with a gap, while the external cone is provided with perforations in the lower part, the internal in the upper part, the receiver is designed as mated beams. 2. A device according to claim 1, characterized in that the perforation of the upper part of the inner cone is directed towards the direction of rotation of the air flow, and the perforation of the lower part of the outer cone is made tangentially forming the cone and directed in the direction of rotation of the air flow in the annular gap. 3. The device according to paragraphs. 1 and 2, characterized in that the inner cone is provided with a flow swirler. ; 5 7V 73 2 R X 77 fig.Z