SU567466A1 - Cartridge filter - Google Patents

Description

(54) CARTRIDGE FILTER

I

The invention relates to devices for the mechanical purification of a liquid from a suspension. In particular, such high-capacity filtering plants use RL cleaning of highly entrained water in the water intakes of industrial water pumping stations. Cartridge filters are known that contain a vertical case, along the axis of which a cylindrical filter element is fixed on a solid shaft connected with rotational drive, inlet and outlet nozzles are located horizontally, the filter is equipped with a pressure washer tightly adjacent to the surface of the filter element, so a discharge port coupled to the c zesbornym spout

A filter is known that contains horizontally mounted rotating conical water purification sieves or nets embedded in a pressure pipe.

The disadvantages of this cartridge filter is that the hydraulic

the mode that occurs when the filter elements are wrapped around is not enough, which is especially important when the flow rate of the filtered liquid is high, since it leads to a large loss of pressure and, consequently, reduces the performance of the filter. Parts of the filter are fitted and the rails are attached to one another with minimal gaps, which leads to rapid wear of the rubbing parts when cleaning water with abrasive particles suspended in it. The known filter is structurally complex, which determines its relatively high cost and high operating costs.

The purpose of the invention is to increase the filter performance.

For this purpose, the film-j element is made in the form of a multifaceted truncated pyramid with a large base, directed upwards, and is equipped with a fairing installed on its axis from the side of the larger base.

Claims (2)

The drawing shows the Filra Rr structure, section. The filter includes a housing I, a conical cover 2,: a branch pipe 3, a filter element 4, an inlet pipe 5, a coupling half 6, a bandage 7, ribs 8, a fairing 9, a seal 10, bearings 11 and 12, a gasket 13, a shaft 14 with coupling half 15 , gear 16, gearbox 17, electric motor 18, elbow 19, oil seal 20, washer 21 with pipe 22 for supplying the washing head Corps 1 are made in the form of a back truncated cone, which is connected to the discharge conduit with untreated water. Inside the case. The filtering element 4, made in the form of a steel or plastic one: a reticulated multifaceted back-truncated pyramid, was fixed; it was mounted on the frame. There is a mesh filter element. On the conical cover 2 with the help of ribs 8 fixed the fairing 9, made in the form of a hollow droplet-shaped shell .. The end gap between the conical cover 2 and the band 7 is covered with a seal 1O across the rubber sheet. mounted on the lid 2. The drive shaft 14 by means of a gear 16 is coupled with a drive mechanism consisting of a black (or other type) gearbox 17 and an electric motor 18. In addition, the drive shaft 14 is coupled with a knee 19 ,. intended for removal of garbage and wash water in the pipeline using the gland 2O. A stream of purified water is discharged through a branch pipe 3 into the discharge line of the clarified water. The washer integrated into the housing 1 serves to force the filtering element 4 to be flushed with water supplied from a pressure conduit with purified water through a piping system when the filter housing is dried. A battery of filcrowers is built into the pressure pipeline, but less than two of them. Depending on the number of filters, the capacity of each unit is determined. If the battery consists of two units, then the capacity of each unit must be equal to the total flow through the pipeline. With a larger number of units, the performance of each is determined by the following formula: b -il ± -h-H. where Vf - proizvoditel.nest filter m / s; Q-j-p - water flow through the pipeline, m / s; P - the number of filters. When a maximum permissible differential is formed on the filter element, when it is clogged, the filters are alternately disconnected from the pressure conduit. A vent valve opens and water from the unit is discharged into the sewer. The motor 18 is turned on and the filter element 4 begins to rotate, then. another valve opens and water from the conduit with purified water is supplied through a flush. Separator 21 to flush the filter element. At the end of the flushing process, the water supply to the washer is stopped, the drive mechanism is turned off, the dump valve is closed, and the filter comes into operation. The technical and economic effect of the cartridge filter is determined primarily by the fact that with its help it provides a sufficiently effective and quick purification of large amounts of water with its continuous consumption. For example, the proposed filter can be applied to thermal power plants, concentration plants, metallurgical industries, chemical plants and other water-intensive enterprises. Another advantage is the accessibility and clarity of the removal of the slime, which, under the influence of gravity, is easily carried by the stream to the outlet. The invention contains a cartridge filter for cleaning fluid containing a vertical housing, on the axis of which a filtering element is attached to the hollow shaft, characterized in that, in order to increase the filter performance, the filtering element is designed as a multifaceted truncated pyramid with a large base facing upwards and provided a fairing installed on its axis from the side of the greater base. Sources of information taken into account in the examination. 1. The patent of Sweden No. 2О0013, cl. 12 d 15/02, 1966