SU1346817A1 - Air cleaner - Google Patents

Abstract

The invention relates to devices for cleaning air from industrial aerosols, and can be. used in the mountain industry. The purpose of the invention is to increase the efficiency of trapping oil mist and moisture without increasing the counter pressure in the intake manifold (K) 2 and improving the working conditions of the staff. The air cleaner includes an expansion chamber (CU) 1, inside which is placed an outlet port K 2, a slit outlet of which is located along axis CU 1. Exhaust K reports CU 1 with the atmosphere and is made in the form of radially arranged Venturi tubes 3. The slit outlet is located above the outlet K level. Before the outlet ends of the tubes 3 and outside of the RC 1, a reflector 7 is installed. The exhausted compressed air is cooled in the RC 1 due to its expansion. In this case, oil aerosol droplets on the surface of CD 1 form a layer to which the ice particles stick, which are thrown away by inertial forces. A layer of an oil-iced mixture is formed. During the breaks, the mixture flows into the oil sump 5, and at the first Bbboione of air the mixture is pushed out. 1 hp f-ly.2il. 5 (L

Description

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The invention relates to devices for air purification from industrial aerosols and can be used & a in mining industry for cleaning spent compressed air with perforators.

The purpose of the invention is to increase the efficiency of trapping oil mist and moisture without increasing the backpressure value in the intake manifold and improving the working conditions of service personnel.

FIG. 1 shows an air cleaner, vertical section, FIG. 2 shows section A-A in FIG. one.

The air cleaner consists of an expansion chamber 1, which is connected through an intake manifold 2 to an exhaust manifold of a machine, for example, a perforator (not shown) and an exhaust manifold made in the form of radially arranged Venturi tubes 3 - with an atmosphere. The inlet manifold 2 has a slit outlet 4 located along the axis of symmetry of the expansion chamber 1 and forms with the housing of the expansion chamber 1 - an oil sump 5, which is connected to the atmosphere by a pipeline 6. Outside the expansion chamber 1 there is a reflector 7, which is located output ends of the tubes 3.

The air cleaner works as follows.

The exhausted compressed air entering through the intake manifold 2 enters the expansion chamber 1 through the slit outlet 4 and is cooled in it due to the expansion process. In this case, the droplets of oil aerosol contained in the exhaust air become more viscous. The droplets of ice that are thrown by inertial forces onto the inner surface of chamber 1 jump from it and with air flow through tubes 3 are released into the atmosphere until the oil aerosol droplets adhering to the chamber surface form a layer capable of holding ice grains. The grains of ice trapped in the layer of cooled, viscous oil are again coated with oil, which keeps them continuously flowing into

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it's grains of ice. In this way, a continuously thickening layer of an oil-ice mixture is formed on the inner surface of the chamber. During the intermittent breaks in operation, this mixture thaws and flows into the oil sump 5. At the time of the first exhaust of compressed air after the break, the pressure in chamber 1 becomes higher than the atmospheric growth of the oil and moisture mixture is pushed out through the oil suction tube 6 to the outside. and recycled.

At the same time, the direction of the flow of exhaust air in the expansion chamber 1 changes smoothly, and the tubes 3 for the discharge of purified air into the atmosphere are made with a smooth presentation of the section in the form of Venturi nozzles, which does not reduce the performance of the perforator, since the exhaust resistance is of the same order as with direct exhaust.

Claims (2)

1. An air cleaner that includes an expansion chamber, an intake manifold, an outlet of which is located inside the expansion chamber and has a slit outlet located along the axis of the expansion chamber, an exhaust manifold which communicates the expansion chamber with the atmosphere, and a condensate drain line characterized in that In order to increase the efficiency of trapping oil aerosol and moisture without increasing the counterpressure in the intake manifold, the exhaust manifold is made in the form of Venturi tubes arranged radially relative to the inlet manifold outlet, the slotted outlet of the outlet manifold is located above the level of the exhaust manifold. 2. The air cleaner according to claim 1, wherein it is characterized in that The aim of improving the working conditions of the staff is that the expansion chamber is made with a reflector mounted outside the expansion chamber and in front of the outlet ends of the exhaust manifold tubes. 2