RU198330U1 - Radial Double Layer Filter - Google Patents

Abstract

The utility model relates to devices for the purification of natural and waste water and can be used in industrial and municipal water supply. The technical task of the utility model is to increase the efficiency of the filter. To solve the problem, in a filter, including a housing, placed in it, a peripheral concentric partition, a central pipe, layers of coarse and fine-grained feeds and a middle perforated concentric baffle located between them, a peripheral chamber for supplying treated water, annular troughs with vertical walls located above the charges, a system for supplying and distributing rinse water, an additional coaxial perforated baffle installed with a gap to the middle partition, and between the partitions there is a branch pipe for supplying wash water, according to the utility model, the bottom of the filter is made of a conical shape.

Description

The utility model relates to natural and waste water treatment devices and can be used in industrial and municipal water supply.

A known filter consisting of a cylindrical body 1, a concentric perforated middle partition 2 and an additional coaxial perforated partition 3 installed with a gap separating the housing into chambers is an external load 4 with a coarse-grained layer, and an internal with a fine-grained loading layer 5, an external concentric partition 6, and a peripheral camera 7 for the supply of purified water and the central perforated pipe 8. The filter is equipped with pipelines for supplying the source water 9, collecting the filtrate 10, a supply pipe 11, a distribution system 12 and annular grooves 13 for collecting washing water with the discharge pipes 14. Between the concentric perforated partition 2 and an additional coaxial perforated septum 3 connected to the pipe 15 for the hearth of the wash water. The filter is equipped with a pipe 6 for washing the cracks in the partition between the peripheral chamber 7 and the loading and pipe 17 for washing the cracks in the central perforated pipe 8 / (Patent No. 1722529, IPC B01D 24/08. Radial two-layer filter / M.N. Shevtsov (RF) - No. 4764772/26; Declared December 4, 1989; Publishing March 30, 1992, Bulletin No. 12).

The vertical walls of the chute 13 for collecting washing water have a height on the side of the fine-grained layer of the load 5 more than on the side of the coarse-grained layer of the load 4, which is done taking into account different sizes of the relative expansion of the loads. The width of the gutter and the minimum height of the vertical wall are determined based on the total flow rate of the washing water from the washing of both loading layers.

The filter works as follows.

Water for cleaning is supplied through pipeline 9 to a closed peripheral chamber 7, formed between the housing 1 and the outer concentric partition 6, is filtered horizontally from the periphery to the center, first through a coarse-grained charge 4, and then through fine-grained 5 with a variable filtration rate. The filtrate is collected in a central perforated pipe 8 and is discharged from the filter by a pipe 10. Flushing water is supplied through a pipe 11 to a distribution system 12 and, passing through the bottom to top, is collected by an annular groove 13 to collect washing water and drained through a pipe 14. To prevent clogging of cracks in partitions 2 and 3 and the intensification of the washing process, water is supplied through the pipe 15, as well as through pipelines 16 and 17 into the chamber 7 and into the Central perforated pipe 8.

However, a significant drawback of this filter is the possibility of clogging of the holes of the drainage system and the insignificant effect of the washing process due to the filter bottom being cylindrical and the low flow rate of the washing water.

The technical task of the utility model is to increase the efficiency of the filter.

To solve this problem, in a filter that includes a housing, a peripheral concentric baffle placed in it, a central tube, coarse-grained and fine-grained charge layers and a middle perforated concentric baffle located between them, a peripheral chamber for supplying purified water, annular grooves with vertical walls placed above the loads, a system for supplying and distributing washing water, an additional coaxial perforated partition installed with a gap to the middle partition, and a nozzle for supplying washing water is arranged between the partitions according to a utility model, the filter bottom is conical.

A sign that distinguishes the claimed technical solution from the prototype, according to the utility model is the execution of the filter bottom of the conical shape.

Thanks to the distinguishing feature, the efficiency of the filter is significantly increased. This is due to the fact that with a conical shape of the filter bottom, the washing process improves due to an increase in the flow rate of washing water in the lower part of the filter bottom, which is made in the form of a cone. In addition, when performing a conical shape of the filter bottom, the degree of clogging of the holes of the drainage system is significantly reduced.

In FIG. shows a section of a radial two-layer filter.

The filter consists of a cylindrical housing 1, a concentric perforated middle partition 2 and an additional coaxial perforated partition 3 installed with a gap separating the housing into chambers — an outer one with a coarse-grained loading layer 4 and an inner one with a fine-grained loading layer 5, an outer concentric partition 6, and a peripheral chamber 7 for of the water to be treated and the central perforated pipe 8. The filter is equipped with pipelines for supplying the source water 9, collecting the filtrate 10, the supply pipe 11, the distribution system 12 and the annular grooves 13 for collecting the washing water with the discharge pipe 14. Between the concentric perforated partition 2 and the additional a coaxial perforated partition 3 is connected to the pipe 15 for supplying washing water.

The filter is equipped with a pipe 6 for washing the cracks in the partition between the peripheral chamber 7 and the loading and the pipe 17 for washing the cracks in the central perforated pipe 8.

The vertical walls of the chute 13 for collecting washing water have a height on the side of the fine-grained layer of the load 5 more than on the side of the coarse-grained layer of the load 4, which is done taking into account different sizes of the relative expansion of the loads. The width of the gutter and the minimum vertical height are determined based on the total flow rate of the washing water from the washing of both loading layers. In this case, the bottom of the filter 18 is made conical in shape.

The filter works as follows. Water for cleaning is supplied through pipeline 9 to a closed peripheral chamber 7, formed between the housing 1 and the outer concentric partition 6, is filtered horizontally from the periphery to the center, first through a coarse-grained charge 4, and then fine-grained 5 with a variable filtration rate. The filtrate is collected in a central perforated pipe 8 and is discharged from the filter by a pipe 10. Flushing water is supplied through a pipe 11 to a distribution system 12 and, passing through the bottom up, is collected by an annular groove 13 to collect the washing water and is discharged through a pipe 14. To prevent clogging of cracks in the partitions 2 and 3 and the intensification of the washing process, water is supplied through the nozzle 15, as well as through pipelines 16 and 17 to the chamber 7 and to the central perforated pipe 8. In addition, when the filter bottom of the conical shape 18 is executed, the efficiency of the washing process is increased by increasing the speed wash water flow at the bottom of the conical bottom of the filter. In addition, the possibility of clogging the holes of the filter drainage system is significantly reduced.

Thus, in contrast to the prototype in the proposed filter increases the efficiency of its work. In addition, the cost of manufacturing a filter drainage system is substantially reduced.

Claims (1)

A radial two-layer filter, including a housing, a peripheral concentric baffle placed inside it, a central tube, coarse-grained and fine-grained charge layers and a middle perforated concentric baffle located between them, a purified water supply peripheral chamber, annular grooves with vertical walls located above the loads, a feeding system and distribution of washing water, an additional coaxial perforated partition installed with a gap to the middle partition, and between the partitions there is a pipe for supplying washing water, characterized in that the filter head is made conical in order to increase the efficiency of the filter.

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