RU226509U1 - INSERT VALVE - Google Patents

Abstract

The utility model relates to the field of controlling filtration and backwashing of a filter with water; it is used to filter impurities, for example, in the production of mining enterprises. The technical result is an increase in the flow switching speed, leading to an increase in the productivity of the water treatment system. Additionally, reliability and durability are increased. The technical result is achieved by the fact that the insert valve (for backwashing the filter, reversing valve), containing a housing with two seats, a movable rod with valves (corresponding to the seats), in the housing there are channels for clean and dirty (washing) water, is characterized by the fact that At least two cylindrical channels are connected to the seat and to the central space of the valve (to each space), (the height of the channels on the inside of the body is the same and the stroke of the rod is set greater than the height of the channels), there is a cylindrical surface between the valve cones (the height of the cylinder is not less than the diameter of the cylindrical channels). Making the outer surface of the valve body in the form of a rotating body will make it easy to replace the valve when it wears out. Making the body collapsible allows for increased manufacturing accuracy. Making the rod spring-loaded will further reduce the hydrodynamic resistance of the valve. Placing the valve in the appropriate hole in the filter holder housing and sealing with the appropriate O-rings will reduce the loss of filtered water. The placement of sealing rings at the upper and lower ends of the rod, corresponding to the cylindrical surface of the body, will reduce the loss of filtered water.

Description

The utility model relates to the field of controlling filtration and backwashing of a filter with water; it is used to filter impurities, for example, in the production of mining enterprises.

Known is “Automatic backwash filter and method of operation” (WO 2022166997) [2], which includes a main flow channel switching valve connected to a filter channel and a flushing channel connected to the filter.

The disadvantages of the device include low reliability and durability of the valves, due to the fact that the valves are made in the form of gate valves.

The closest to the claimed technical solution is the “Filtration and backwash control system for filters” (US 5057214) [1], containing a housing with seats and a stem with valves, in the housing there are passages for inlet and outlet water, passages to the valve seats, and the valve gates are located on a movable rod.

The disadvantage of the known solution is the low flow switching speed, as well as low reliability and durability.

The technical result is an increase in the flow switching speed, leading to an increase in the productivity of the water treatment system. Additionally, reliability and durability are increased.

The technical result is achieved by the fact that the insert valve (for backwashing the filter, reversing valve), containing a housing with two seats, a movable rod with valves (corresponding to the seats), in the housing there are channels for clean and dirty (washing) water, is characterized by the fact that At least two cylindrical channels are connected to the seat and to the central space of the valve (to each space), (the height of the channels on the inside of the body is the same and the stroke of the rod is set greater than the height of the channels), there is a cylindrical surface between the valve cones (the height of the cylinder is not less than the diameter of the cylindrical channels).

Implementation:

In fig. 1 - valve in the “filtration” position;

in fig. 2 - valve in the “flushing” position;

in fig. 3 - general view,

in fig. 4 - general view with partial section,

Where

1 - body;

2 - rod;

3 - upper saddle;

4 - lower saddle;

5 - channels for flushing water;

6 - channels for unfiltered water;

7 - filter channels;

8 - upper shutter;

9 - lower shutter;

10 - cylindrical surface between the gates;

11 - flow of unfiltered water into the filter;

12 - flow of flushing liquid.

The device operates as follows:

A rod 2 is inserted into the housing 1 with the ability to move up and down according to the pattern. Inside the body there are an upper seat 3 and a lower seat 4, corresponding to the upper shutter 8 and the lower shutter 9, respectively. The signs “upper” and “lower” apply only to the drawing; the actual arrangement of elements in space may be different. Flushing (dirty) water channels 5 communicate with the upper seat space. The channels can be located radially relative to the axis of symmetry of the rod, made in the form of a body of rotation. Channels for unfiltered water 6 communicate with the lower seat space. Filter channels 7 are connected to the central part of the valve. In the “filtration” position, the valve stem is in the upper position, and the channel for unfiltered water is connected to the filter, the water is filtered and supplied to the consumer, the flow of unfiltered water into the filter is shown 11. Filtered water at the outlet of the filter flows through the outlet manifold (not shown) to the consumer. The outlet manifold can combine the clean water output from two or more filters. In the “washing” position, the rod moves down, and water from the filter, moving in the direction opposite to the direction of filtration, washes the filter and enters the channel for washing (dirty) water for disposal. On the side of the outlet manifold, clean water pressure is maintained, for example, by a second or several similar operating filters (in the “filtration” position). The flushing fluid flow is shown at 12.

If the height of the cylinder between the valves is greater than the height of the filter channels measured on the inner wall of the housing, a “through” passage between the channels for unfiltered water and the flushing water channels is eliminated, even in an emergency.

Making the outer surface of the valve body in the form of a rotation body will make it easy to replace the valve when it wears out, thanks to the easier installation of sealing rings.

Making the body collapsible - consisting of an upper part, a lower part and an annular seat between them - makes it possible to increase manufacturing accuracy, which, by increasing the laminarity of water flow through the valve, will further reduce the hydrodynamic resistance of the valve and further increase productivity.

Making the rod spring-loaded will further reduce the hydrodynamic resistance of the valve due to more dense pressing of the valve to the seat and further increase performance.

Placing the valve in the appropriate hole in the filter holder housing, which has the appropriate passages, and sealing with the appropriate O-rings will reduce the loss of filtered water, which will further increase productivity.

The placement of sealing rings at the upper and lower ends of the rod, corresponding to the cylindrical surface of the body, will reduce the loss of filtered water, which will further increase productivity.

The technical result of increasing the speed of switching flows is achieved by the presence of several (two or more channels) to the seat and central spaces, as well as counter-directed gate cones, which leads to a decrease in hydrodynamic resistance to the flow of water, an increase in the speed of water movement, and an increase in the productivity of the water treatment system. An additional increase in reliability and durability is achieved by a modular design that allows timely maintenance of the device, preventing its failure, as well as by eliminating the “through” flow of water between the flushing and unfiltered water channels, for example, when the rod is jammed in an intermediate position.

Industrial applicability. The proposed insert valve can be manufactured using known technologies.

Claims (5)

1. An insert valve containing a body with two seats, a movable rod with gates, the body contains channels for clean and dirty water, characterized in that at least two cylindrical channels are connected to the seat and central spaces of the valve, and a cylindrical surface is located between the cones of the gates. 2. Insert valve according to claim 1, characterized in that the outer surface of the housing is made in the form of a body of revolution. 3. Insert valve according to claim 1, characterized in that the body is made of a collapsible upper part, a lower part and an annular seat between them. 4. Insert valve according to claim 1, characterized in that it is placed in a corresponding hole in the filter holder housing and sealed with corresponding O-rings. 5. The valve according to claim 1, characterized in that sealing rings are located in the upper and lower parts of the stem.