SU982817A1 - Cyclone - Google Patents

Description

(54) CYCLONE

The invention relates to devices for the centrifugal cleaning of gases and can be applied in various industries.

A cyclone is known, comprising a housing a pressure chamber for introducing the stream to be cleaned / swirl with helical channels, in which c. The purpose of regulating the velocity of the medium depending on the flow rate is the insertion of the overlapping part of the channel and moving the rod

The disadvantage of this device is the impossibility of automatic stabilization of the cyclone operation mode.

Also known is a cyclone, comprising a housing with a lid, a lateral inlet in its upper part, an axial exhaust pipe, a swirler made in the form of a cylindrical sleeve with screw channels, mounted concentrically with the exhaust pipe and a separating housing on the pressure and vortex chambers.

The possibility of an automatic stabilization of the cyclone operation mode is ensured by the fact that the insertion rod placed in the swirler channel is connected to the bellows attached at one end to the pressure chamber t2.

However, with abrupt, discontinuous measurements of the gas flow rate, the known device does not provide a satisfactory stabilization of the operating mode due to the considerable inertia of the system, therefore a high degree of separation is not provided for such conditions.

The purpose of the invention is to ensure high separation efficiency with abrupt gas flow changes.

Claims (1)

The goal is achieved by the fact that in the proposed device, comprising a housing with a lid, a lateral inlet, an axial exhaust pipe, a swirler made in the form of a cylindrical sleeve with screw channels, mounted concentrically to the exhaust pipe and dividing the housing into a pressure head and vortex chamber, and a device for automatic stabilization of the cyclone operating mode, the latter is made in the form of curved elastic plates placed in the channels of the swirler and rigidly attached at one end attached to their walls, the exhaust pipe is equipped with a cylindrical pipe and a swirler mounted on the housing lid, the cylindrical pipe being installed outside the pipe concentrically with the formation of an annular channel between the internal surface of the pipe and the external surface of the pipe, holes in the upper part of the pipe connecting the annular cavity the channel with the cavity of the pressure chamber, and the swirler located in the annular channel, FIG. 1 shows the proposed cyclone; Fig 2 - swirl; FIG. 3, a sweep channel sweep, a cyclone includes a housing 1 with an concealment 2, a tangential inlet C 3, an exhaust pipe 4, a swirl 5. with screw channels 6 and curved 7 fixed to the nick with screws 7, cylindrical nozzle 9 s holes 10 swirler 11, mounted on the annular channel 12, the cyclone body is divided by swirler 5 into pressure chamber 13 and vortex chamber 14 and has a dust collector 15 in the lower part. The cyclone works as follows: The gas contaminated with dust or liquid enters through the inlet patra side 3, welded tangentially to the body to reduce the resistance and stagnant zones, and then through channels 6 of the swirler 5, provided with elastic plates 8, into the vortex chamber. Elastic plates automatically adjust the flow area of the gas swirl channels. Increased initial pressure at the inlet ensures the maximum spin of the plate and, therefore, the maximum through hole. When the pressure decreases, the force acting on the plates decreases, and the flow area is covered, due to which the gas velocity at the nozzle outlet is kept constant. Experiments have shown that at the very initial moment a part of the gas, without the required speed, goes to the unpurified gas outlet pipe. To eliminate this phenomenon, a gas curtain is provided. A small part of the gas enters the annular channel 12 between the exhaust pipe 4 and the pipe 9 through the holes 10 and. Directed by a swirler 11, installed with a large twist angle, enters the space of the vortex chamber; the compartment is dust of the main part of the flow. As a result of an experimental test of the proposed technical solution, a laboratory model of 100 mm in diameter was used for gas purification from finely dispersed dust (soda ash) with a rapid release of the mixture with a volume of 250 them for 15 seconds, a degree of purification of 93% was provided. The invention includes a cyclone, comprising a housing with a lid, a lateral inlet in its upper part, an axial exhaust pipe / swirl made in the form of a cylindrical sleeve with screw channels, mounted concentrically with the exhaust pipe and separating the housing into the pressure and vortex chambers, and automatic stabilization of the cyclone mode of operation, different from the fact that, in order to ensure high separation efficiency in case of abrupt gas changes, the device for automatic stabilization of The cyclone press is made in the form of curved elastic plates placed in the swirler channels and rigidly attached to their walls at one end, the exhaust pipe is equipped with a cylindrical pipe and a swirler mounted on the roof of the body, while the cylindrical pipe is installed outside the pipe concentrically to form an annular channel between the inner surface the nozzle and the outer surface of the pipe, in the upper part of the nozzle, there are holes that communicate the cavity of the annular channel with the cavity of the pressure chamber, and hritel disposed in the annular channel. Sources of information taken into account in the examination of 1, USSR Author's Certificate W 613821, Cl, B 04 C 3/06, 1976, 2, USSR Author Certificate (№ 673315, C, B 04 C 3/06, fS 13