RU65783U1 - TOP DISTRIBUTION DEVICE FOR IONITE FILTER (OPTIONS) - Google Patents

Abstract

A group of utility models relates to the field of purification of natural and wastewater and can be used in ion-exchange filters with a floating layer of inert granules operating in the energy sector and industrial enterprises. The upper switchgear of an ion-exchange filter with a floating layer of inert granules contains a nozzle and removable distribution pipes fixed to the nozzle and located at an angle to the horizontal surface of the filter with a maximum approximation to the upper sphere of the filter and with plates attached to it. Distribution pipes are equipped with caps with slots. The device may also contain a pipe, collectors mounted on the pipe, and removable distribution pipes mounted on the collectors. Manifolds with distribution pipes are located at an angle to the horizontal surface of the filter with a maximum approximation to the upper sphere of the filter and are connected to it by plates. Distribution pipes are equipped with caps with slots. The devices are resistant to mechanical stress when upstream flows into the filter, exclude the formation of “stagnant zones” during washing or regeneration, and are convenient when performing corrosion protection of the filter. 2 n.a. and 2 z.p. f-ly, 4 ill.

Description

A group of utility models relates to the field of purification of natural and wastewater, as well as other liquid solutions, and can be used in ion-exchange filters with a floating layer of inert granules operating in the energy sector and industrial enterprises.

A top drainage distribution device for an ion-exchange parallel-accurate first-stage filter of the type FIPa I is known, which consists of a vertical pipe plugged from below and horizontally arranged radial pipes (beams) installed at one end in the holes of the vertical pipe. Opposite ends of pipes are muffled and attached to the filter housing. Pipes are equipped with holes with a diameter of 6-10 mm, made on the upper forming surface of the pipe (Industry catalog. Water treatment equipment for thermal power plants and industrial energy. NIIEInforenergomash, Moscow, 1987, from 47-49).

This device is designed to supply treated water and a regeneration solution and remove water by loosening the ion exchange resin before regeneration.

The disadvantage of this design of the upper switchgear is the impossibility of its use in filters with a floating layer of inert material, for example, working on the UP-CORE type (Apcor), due to the possible removal of this granular (2-5 mm) material from the filter through the distribution holes pipes.

To eliminate this drawback, it is known to use a separation device made in the form of countercurrent filters

horizontal partition, equipped with filter caps with a slot size of 0.5 mm (RU patent for utility model No. 21291, class C02F 1/42, publ. 10.01.2002)

However, in ion-exchange filters, the regeneration of which is carried out by acid or salt, a violation of anticorrosion coatings is observed, as a result, corrosion of the filter housing. Using this design makes it difficult to perform anti-corrosion coatings on the inner surfaces of the filter, as well as the holes for the caps in the separation device.

The closest technical solution is the design of the upper switchgear of the countercurrent ion-exchange filter with a layer of floating inert granules, consisting of an inlet vertical pipe with horizontally radial pipes fixed to it, into which caps with slots of 0.5 mm in size are screwed. Distribution pipes are made removable to ensure corrosion protection of the filter’s inner surface (“Energy Saving and Water Treatment”, No. 5, 2004, pp. 20-21).

The disadvantage of this design of the upper switchgear is the likelihood of its mechanical damage when conducting prior to regeneration of the ascending piston-like rise of the layer of ion exchanger to the floating layer of inert granules. In this case, the horizontal radial distribution pipes of the upper switchgear experience significant mechanical loads.

In addition, above the horizontal switchgear, a “stagnant” zone of the floating layer of inert granules is formed, in which various contaminants accumulate, which in turn leads to a deterioration in the technological performance of the ion filter.

The task of creating utility models is the development of structures of the upper switchgear, which are resistant to

mechanical loads when upstream flows into the filter, providing improved technological performance of the ion-exchange filter by eliminating “stagnant zones” during washing and regeneration, and taking measures to reliably protect the filter’s internal surfaces.

The problem is solved due to the fact that, according to the first embodiment, the upper ion-exchange filter distribution device with a floating layer of inert granules contains an inlet vertical pipe with a sealed lower end and at least three radial distribution pipes fixed to the pipe with a possibility of removal, equipped with filtering means with slots and located at an angle to the horizontal surface of the filter with a maximum approximation to the upper sphere of the filter and attached to the upper th sphere of filter plates. The size of the slots of the filtration media is 0.2-1.2 mm.

According to a second embodiment, the upper switchgear of an ion exchange filter with a floating layer of inert granules contains an inlet vertical pipe with a sealed lower end, radial collectors in an amount of at least three, mounted on the pipe, and distribution pipes mounted on radial collectors with the possibility of removal and equipped with filtering means with slots, and radial manifolds with distribution pipes are located at an angle to the horizontal surface of the filter with a maximum licking to the upper sphere of the filter and attached to the upper sphere by plates. Moreover, the size of the slots of the filtration media is 0.2-1.2 mm.

A group of utility models is illustrated by drawings.

Figure 1 shows a General view in section of a filter with an upper switchgear according to the first embodiment.

Figure 2 - section aa in figure 1

Figure 3 is a General view of the filter with the upper switchgear according to the second embodiment (using collectors).

Figure 4 is a section bB in figure 3.

The upper distribution device (Fig. 1, Fig. 2) contains an inlet vertical pipe 1 with a muffled lower end. The upper end of the pipe is connected to the outer pipe 2. Radial distribution pipes 3 are fixed to the pipe 1. Distribution pipes 3 are equipped with filtering devices made in the form of caps 4 with slots and are located at an angle to the horizontal surface of the counter-current filter 5 with a maximum approximation to the upper sphere 6 filter. The size of the slots of the caps 4 is 0.2-1.2 mm Filtration means can also be made in the form of threaded slots in the distribution pipes or in the form of holes in the distribution pipes with a diameter of 3-10 mm, which are covered with a mesh with a mesh size of 0.2-1.2 mm. The distribution pipes 3 are connected to the upper sphere 6 of the filter by plates 7. The ion exchange filter contains a standard lower distribution device 8, a layer of ion exchange materials 9 and a floating layer of inert granules 10. The radial distribution pipes 3 are fixed to the inlet vertical pipe 1 by means of plates.

The upper distribution device (figure 1, figure 2) works as follows. The cleaned water of the working cycle flows under pressure of 0.2-1.0 MPa into the outer pipe 2 and then into the inlet vertical pipe 1 and distribution pipes 3.

Water leaves the distribution pipes through the slots of the caps 4 and passes from top to bottom a floating layer of inert granules 10 with a size of 1-5 mm and a layer of ion-exchange material 9, in which the water is directly purified. Water is discharged through the lower switchgear 8. At the end of the operating cycle, the filter is turned off

for washing and regeneration of ion-exchange materials. Washing of ion-exchange materials is carried out due to the upward supply of water through the lower switchgear 8 with a flow rate providing a piston-like rise of the layer of ion-exchange materials 9 to the floating layer of inert granules 10. The washing water is withdrawn sequentially through caps 4, distribution pipes 3, vertical pipe 1 and outer pipe 2 .

The subsequent supply and removal of the regeneration solution is carried out similarly in the same direction as the washing of ion-exchange materials.

Since the distribution pipes 3 of the upper distribution device are located at an angle to the horizontal surface of the filter, during washing and regeneration they experience significantly less mechanical stress due to the tangential direction of the water flow and the regeneration solution.

Since the distribution pipes 3 are located as close as possible to the upper sphere 6 of the filter, there are no “stagnant zones” in the floating layer of inert granules 10 during washing or regeneration.

The fastening of the radial distribution pipes 3 to the inlet vertical pipe 1 is made removable using plates, which provides access to the upper sphere 6 for applying an anti-corrosion coating.

The upper distribution device (Fig. 3, Fig. 4) contains an inlet vertical pipe 1 with a muffled lower end. The upper end of the pipe is connected to the outer pipe 2. Radial collectors 3 are mounted on the pipe 1. Distribution pipes 4 are fixed on the radial collectors 3. Radial collectors 3 with distribution pipes 4 are located at an angle to the horizontal surface of the counter-current filter 5 with a maximum approximation to

the upper sphere 6 of the filter and are connected to the upper sphere of the filter by plates 7. Distribution pipes 4 are equipped with filtering means made in the form of caps 8 with slots. The size of the slots of the caps is 0.2-1.2 mm. Filtration means can also be made in the form of threaded slots in the distribution pipes or in the form of holes with a diameter of 3-10 mm in the distribution pipes coated with a mesh with a mesh size of 0.2-1.2 mm.

The ion exchange filter contains a standard lower switchgear 9, a layer of ion-exchange materials 10 and a floating layer of inert granules 11. The distribution pipes 4 are attached to the radial collectors 3 by removable plates.

The upper switchgear (figure 3, figure 4) works as follows.

The purified water during the working cycle enters under pressure 0.2-1.0 MPa into the outer pipe 2 and then into the inlet vertical pipe 1 and radial collectors 3. From where the water is supplied to the distribution pipes 4 and exits through caps 8 having slots 0, 2-1.2 mm.

Next, the purified water from top to bottom passes a floating layer of inert granules 11 with a size of 1-5 mm. A floating layer of inert granules serves to evenly distribute the flow of purified water over the filter area. Then, the purified water passes through a layer of ion-exchange material 10, in which the process of water purification takes place directly. The removal of purified water is carried out through the lower switchgear 9. At the end of the operating cycle, the filter is turned off for washing and regeneration of ion-exchange materials.

The washing of ion-exchange materials is carried out due to the upward supply of water through the lower switchgear 9 with a flow rate that provides a piston-like rise of the layer of ion-exchange materials 10 to the floating layer of inert granules 11. Discharge of wash water

produce sequentially through caps 8, distribution pipes 4, radial manifolds 3, inlet vertical pipe 1 and the outer pipe 2.

The subsequent supply and removal of the regeneration solution is carried out similarly in the same direction as the washing of ion-exchange materials.

Since the radial collectors 3 and the distribution pipes 4 of the upper switchgear are located at an angle to the horizontal surface of the filter, during washing and regeneration they experience significantly less mechanical stress due to the tangential flow of water and the regeneration solution.

Since the radial collectors 3 with distribution pipes 4 are located as close as possible to the upper sphere 6 of the filter, during washing and regeneration there are no "stagnant zones" in the floating layer of inert granules 11.

The fastening of the distribution pipes 4 to the radial collectors 3 is provided by removable plates, which allows access to the upper sphere 6 of the filter housing 5 for applying an anti-corrosion coating.

Thus, the use of the proposed designs of the upper switchgear can reduce the mechanical stress on the collectors and distribution pipes and increase their service life, eliminate "stagnant zones" in the upper sphere of the filter and provide access for applying anti-corrosion coatings on the inner surfaces of the ion filter.

Claims (4)

1. The upper switchgear of an ion-exchange filter with a floating layer of inert granules, comprising an inlet vertical pipe with a sealed lower end and radial distribution pipes fixed to the pipe with a possibility of removal and equipped with filtering means with slots, characterized in that the distribution pipes are at least three are located at an angle to the horizontal surface of the filter, are installed with a maximum approximation to the upper sphere of the filter and attached to the upper sphere of the filter plate and. 2. The device according to claim 1, characterized in that the size of the slots of the filtration media is 0.2-1.2 mm 3. The upper switchgear of an ion-exchange filter with a floating layer of inert granules, comprising a vertical inlet pipe with a sealed lower end and distribution pipes equipped with filtering means with slots, characterized in that it additionally contains at least three radial collectors fixed to the vertical input branch pipe, distribution pipes are mounted on radial collectors with the possibility of removal, and collectors with distribution pipes are located at an angle to the horizon the surface of the filter with the maximum approximation to the upper sphere of the filter and are connected to the upper sphere of the filter by plates. 4. The device according to claim 3, characterized in that the size of the slots of the filtration media is 0.2-1.2 mm.