RU82426U1 - TOP DRAIN AND DISTRIBUTION DEVICE - Google Patents

Abstract

1. The upper drainage and distribution device of the filter is made in the form of a central outlet with pipe-beams connected at three levels at an angle to each other at 60 °, having a series of holes located at a certain step and directed to the bottom. ! 2. The upper drainage distribution device according to claim 1, characterized in that each tube-beam is provided with openings having a conical extension at the outlet.

Description

The utility model relates to the upper drainage-distributing devices of filtering mud collectors and can be used to clean liquids from mechanical impurities, in clarification filters, ion exchangers, and in water treatment equipment.

Known lower distribution device for water treatment filters, containing a horizontal manifold attached to it along the side forming distribution pipes and connected to the pipes along the bottom of their forming through the sleeves drainage caps. Drain cap bushings are made in length, increasing from the periphery to the center of the filter (see AS USSR No. 1214150, IPC 4 I01D 24/42, 1986)

The disadvantage of this device is the limitation of the number of sleeves with drainage caps and lengths that are equidistant to the profile of the filter bottom in various sections, which can be simultaneously installed on the distribution pipes, and, therefore, a decrease in the density and uniformity of the filter layer, especially for ion-exchange filters with an oval-shaped bottom, which reduces filter performance.

Known drainage distribution device containing a collector and attached pipes with plugs at the ends. Holes were made in the pipes, which were closed by slotted elements located above the holes, in which the slots were made in the form of blinds (see AS USSR No. 1681889, IPC 5 B01D 24/38, 1991)

The disadvantage of this solution is the low efficiency of coverage of the backfill material, and, as a result, the appearance of stagnant zones and a decrease in the efficiency of liquid cleaning.

A well-known slotted cap containing a housing, a connecting pipe and a slotted filter partition with stiffeners, made in the form of a spiral of two tapes, one of which has spacing protrusions, the spiral being wound with the formation of a conical surface, (see the Russian Federation for utility model No. 3889, 1997, IPC 6 B01D 24/38)

A disadvantage of the known solution is the difficulty of manufacturing a hemispherical upper part of the filter nozzle, as well as the difficulties that arise when removing residual air after washing is completed.

The closest analogue is a drainage distribution device of an ion-exchange filter, containing an outlet pipe with collectors fixed to it, equipped with beam distribution pipes, and cap filter elements,

connected to the distribution pipes by means of nozzles having different lengths in which the beam distribution pipes are placed in the planes of the cross-sections of the collectors at an angle to the axis of the collectors (see RF patent No. 2137526 IPC 6 B01D 24/38, 1999)

The disadvantage of this device is the limitation of the number of sleeves with drainage caps and lengths that are equidistant to the profile of the filter bottom in various sections, which can be simultaneously installed on the distribution pipes, and therefore, a decrease in the density and uniformity of the filter layer, especially for ion-exchange filters with an oval-shaped bottom, which reduces filter performance.

The problem solved by the utility model is to provide the easiest to manufacture efficient in operation, to cover the bulk material, to increase the operational characteristics of the filters.

To achieve the task in the upper drainage and distribution device of the filter, made in the form of a central outlet with pipes welded with beams at the ends diverging from the central outlet at those levels, each of the ray tubes is a beam, taking into account the diameter of the central outlet, and each of the three beams rotated relative to the previous one by 60 °, while the central bend is tightly welded with a lid from the bottom, and in each tube a hole is drilled expanding conically, directed to the bottom of the filter tank, 12 pieces each equal step apart. Since the pipe rays are rotated relative to each other, this allows you to weld them very tightly around the perimeter of the central branch. The diameter of the ray tubes significantly exceeds all known analogues and allows the filter to operate under high pressure both directly and in self-cleaning mode.

The selected design increases the duration of the defect-free operation of filters in difficult conditions of heavy water mixtures.

The claimed upper drainage distribution device can be manufactured using standard equipment using known existing technologies and assembled using known devices at the installation site in the filter.

Example:

The drainage-distributing device described above is an approved device that has proven itself during the tests. The diameter of the rays of the pipes f = 32x3 mm., The length of the two rays L = 500 mm., The diameter of the holes f = 10 mm. (at the output Ф = 15 mm.), the height of the entire device Р = 178 mm.,

the diameter of the central branch f = 58x3.5 mm.

Claims (2)

1. The upper drainage and distribution device of the filter is made in the form of a central outlet with pipe-beams connected at three levels at an angle to each other at 60 °, having a series of holes located at a certain step and directed to the bottom. 2. The upper drainage distribution device according to claim 1, characterized in that each tube-beam is provided with openings having a conical extension at the outlet.