RU2040946C1 - Liquid purification filter - Google Patents

Abstract

FIELD: liquids purification. SUBSTANCE: liquids purification filter has body with lid and conical bottom, filtering loading and feeding and removing branch pipes, upper and lower collecting-distributing chambers, first of which is mounted on lid, has collapsible hatch and located in the chamber upper collecting-distributing device in the form of coaxially located shell and ring-type perforated member; and second chamber is connected to conical bottom. In point of connection there is lower collecting-distributing device made detachable in the form of perforated base with located on it gauze screens. Over the gauze screens there is checking hatch and branch pipe to remove cleansing water. Rest feeding and removing branch pipes are connected to chambers. EFFECT: increased quality of liquids purification. 3 cl, 3 dwg

Description

 The invention relates to filters for cleaning liquids and can be used in various industries where it is necessary to purify water or other liquids from suspended solids, petroleum products, colloidal and dissolved contaminants.

 Known filter for water purification, comprising a housing with a lid and a bottom, filled with granular ion-exchange material and located in the housing above and below it, a distribution box. A disadvantage of the known filter is the inaccessibility of prefabricated distribution devices for inspection and repair without unloading the ion-exchange material.

 The closest technical solution to the claimed one is a filter for cleaning liquids, comprising a housing with a cover and a conical bottom, the lower of which is made in the form of grids located on a perforated base and installed in the lower part of the conical bottom with the possibility of removal, inlet and outlet pipes, filter loading and revision hatch. In this well-known filter, repair and inspection of the lower collecting and distribution device can be carried out without unloading the filter material, however, this requires the dismantling of the bottom of the bottom. Another disadvantage of the known device is the lack of uniformity of collection and distribution of water.

 The objective of the invention is to simplify filter maintenance by providing inspection, cleaning and repair of prefabricated distribution devices without unloading the filter material and disassembling the filter while increasing the uniformity of fluid collection and distribution.

 The problem is solved in that the filter is equipped with an upper and lower collection and distribution chambers, one of which is attached to the conical bottom, and the other is mounted on the lid and is made with a hinged hatch, the lower collection and distribution device is installed between the bottom and the lower chamber, the upper is installed in the upper chamber and is made in the form of a coaxially located shell and an annular tray with slots, the inlet and outlet pipes are connected to the chambers, and the inspection hatch is located on a conical bottom.

 To improve the washing quality of the lower collection and distribution device, it is advisable to provide the filter with a pipe for draining the wash water mounted on a conical bottom.

 In FIG. 1 shows a device, a General view; in FIG. 2, 3 top assembly switchgear.

 The filter consists of a cylindrical body 1, a conical bottom 2, a cover 3, a filter load 4, an upper collection and distribution chamber 5 mounted on the cover 3 and having a hinged hatch 6, a lower collection and distribution chamber 7 attached to the neck of the conical bottom 2. B the upper chamber 5 has an upper collecting and distributing device made in the form of a coaxially arranged shell 8 and an annular perforated element, for example, a tray 9 with holes 10. At the boundary between the conical bottom and the chamber 7 there are a removable lower assembly and distribution device is made, made in the form of a perforated base 11 and nets 12 located on it. On the conical bottom there is an inspection hatch 13. Inlet and outlet pipes 14 and 15 are connected to the chambers, which serve respectively to supply wash water and drain the filtrate , supply of purified water and drainage of flushing water. A pipe 16 is attached to the conical bottom to drain the wash water after cleaning the nets 12.

 Depending on the technological regulations, the chambers are equipped with nozzles for supplying and discharging liquid and gaseous reagents. In the lower chamber 7 there is a convex bottom 17, which serves to increase the strength and stability of the filter.

 The filter can operate in the downstream and upstream filtering mode.

 In the downward filtration mode, the liquid is cleaned through the nozzle 15 into the chamber 5, in which the prefabricated switchgear is located in the form of an annular tray 9 with holes 10 and a shell 8. The liquid coming from the holes strikes the shell and flows in a downward flow to the granular layer loading 4. Filtering through the lower collection and distribution device, the purified liquid is collected in the lower chamber 7, from where it is discharged through the pipe 14.

 In the upward filtration mode, the liquid for cleaning enters through the nozzle 14 into the chamber 7, in which it calms down, and then is filtered through the entire area of the mesh 12 into the conical and cylindrical parts of the filter, filled with filter material, and through the cavity between the inner wall of the collecting and distribution tray and the shell enters the holes 10 is collected in the tray 9 and is removed from it by the pipe 15.

 Rinsing the filter material in the filter with water or a regenerating solution is carried out in an upward flow.

 Inspection and cleaning of the upper collection and distribution device can be carried out without unloading filter material by lowering the water level below the upper chamber and folding the hatch 6.

 The washing of the lower distribution grid is carried out as follows: water is supplied to and discharged from the lower chamber through the pipe 16 during intensive liquid movement inside the chamber, which facilitates cleaning of the lower distribution device without moving the liquid through the filter charge.

 Repair and replacement of the lower switchgear 12 is made through the hatch 13.

 The advantage of the proposed design is the ability to inspect and clean the switchgear without unloading the filter material, prevent the removal of the load when washing it due to the small gap between the shell and the collecting chute, efficient use of the filter height due to the location of the switchgear at the borders containers containing the load, efficient use of the entire filter area due to the uniform distribution of liquid over the area with schyu mantle, which plays the role of the reflector and the lower precast grids work distribution device across the area.

Claims (3)

 1. FILTER FOR CLEANING LIQUIDS, comprising a cylindrical body with a cover and a conical bottom, the upper and lower prefabricated distribution devices, the last of which is removable and has the form of nets located on a perforated base in the lower part of the bottom, filtering loading, inlet and outlet pipes and an inspection hatch, characterized in that it is equipped with upper and lower collection and distribution chambers, the lower chamber is attached to the conical bottom, the upper one is mounted on the lid and has a hinged hatch, neither it Collapsible dispensing device is mounted between the bottom and the lower chamber, the upper chamber at the top and is designed as a shell and coaxially arranged annular perforated member inlet and outlet pipes connected to the cameras and the inspection door mounted on the conical bottom.  2. The filter according to claim 1, characterized in that it is equipped with additional outlet pipe connected to the conical bottom.  3. The filter according to paragraphs. 1 and 2, characterized in that the annular perforated element of the upper collecting and distribution device is made in the form of an annular tray with slots.

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