RU218308U1 - SELF-CLEANING FILTER DRIVE FOR SPRINKLING MACHINE - Google Patents

Abstract

The utility model relates to agriculture, namely to the artificial irrigation of fields, and can be used in the design of a self-cleaning filter designed to take water mainly from open sources for the purpose of further supply to the pipeline, in particular, a self-propelled multi-support sprinkling machine of circular or frontal movement. The self-cleaning filter comprises a drum 1 with a side wall 2 made of mesh material, which is rotatably mounted in a support structure. The drum 1, as a rule, is provided with a first end 3, a second end 4 and a plurality of longitudinal blades 5, made preferably in the form of L-shaped strips, passing along the side wall 2 of the drum 1 between the first and second ends 3, 4. The drive of the self-cleaning filter is made in in the form of a ramp 14 with nozzles 15, 16 located on the support structure, while the nozzles 15, 16 are installed with the ability to adjust the direction of the water jet from each of them. The direction of the jet of water from the nozzles is adjusted, for example, by turning the nozzles 16 in a known manner relative to the ramp 14 on which it is installed. In another case, the direction of the water jet from each of the nozzles 15, 16 can be adjusted by means of a ball jet 17, where the direction of the jet is adjusted by turning the ball jet 17 in the body of the nozzle 15, 16. The ramp 14 with the nozzles 15, 16 is installed with the possibility of changing its position relative to the supporting structure, for example, by means of an additional bracket 18 moving relative to the supporting structure with the possibility of fixation on its posts 7, 8 with fasteners 19. 6 c.p. f-ly, 9 ill.

Description

The utility model relates to agriculture, namely, to the artificial irrigation of fields, and can be used in the design of a self-cleaning filter drive designed to take water mainly from open sources, with the aim of further feeding it into the pipeline, in particular, a self-propelled multi-support circular or frontal sprinkler movement.

From the USSR author's certificate No. 1787380 for the invention (published on January 15, 1993), a self-cleaning water intake device for supplying water to a sprinkler is known.

The water intake device includes a pump installed on the frame of the sprinkling machine with suction and pressure nozzles and a filter element with a drive, scrapers, a garbage collector and automatic controls. The device is equipped with a block of jet nozzles connected through a controlled valve to the pump discharge pipe and located dispersed in the action zone and in the direction from the filter element with the possibility of changing the location height and installation angle in the vertical plane. The filter element is made in the form of a rotating drum made of sheet corrosion-resistant material with holes of the appropriate diameter, the drive of which is formed by a separate motor.

The disadvantages of the described device include the complexity of the design and low cleaning efficiency of the filter element.

A self-cleaning mesh assembly for filtering irrigation water is known, described in US patent for invention No. 8652324 (published on February 18, 2014), which is a self-cleaning drum filter having means for cleaning the drum of debris when the drum rotates during pump operation. The filtered water entering the drum is drawn from the inside of the drum through the suction pipe to be fed into the irrigation system.

The self-cleaning mesh assembly includes a rotating drum having a side wall made of mesh material to remove debris from the water as the water passes into the drum.

The drum has a front end and a rear end, as well as a plurality of straps extending along the length of the drum between the front and rear ends. The mesh side wall of the drum extends between the front and rear ends and is supported by slats to maintain a cylindrical shape.

The front end of the drum is supported by a support structure that allows the drum to rotate around a horizontal axis, and also has an opening through which an inlet pipe is passed to draw water from the inside of the drum. The inlet pipe is connected to the suction pipe. The drum rotates around the intake pipe, which remains stationary.

The front end of the drum has a surface with a protruding ring. The support structure for supporting the front end of the drum includes rollers that support the outer surface of the ring, allowing the drum to rotate about its horizontal axis.

An electric motor is used to rotate the drum during the operation of the mesh assembly. An endless belt, such as a V-belt, runs around a drive pulley on the motor output shaft and around a ring on the front end of the drum to rotate it when the motor is running. The rollers engage and roll around the ring next to the belt. The rear end of the drum is supported by a hollow shaft and a bearing or other suitable structure to allow the drum to rotate freely about a horizontal axis during operation.

The spray nozzles of the cleaning system are located inside the drum on a manifold connected to the hollow shaft of the rear end of the drum, from where water for the nozzles flows under pressure. The spray nozzles are directed to spray water in a radial direction outward from the inside of the drum, so that the spray water hits the inner surface of the side wall mesh material.

In operation, the self-cleaning mesh assembly of the invention described is placed in a water source and the inlet pipe connected to the suction pipe of an irrigation pump or other suitable water management system. During operation, the spray water enters the drum through the mesh side wall unobstructed, and the filtered water is sucked through the inlets of the inlet pipe into the outlet pipe. Next, the water passes from the outlet into a pipe or other structure that feeds an irrigation pump or other water use system. Also, during operation, the drum is driven into rotation around its horizontal axis by an electric motor.

A feature of this design is the impossibility of its operation at shallow depths. In addition, for the operation of a self-cleaning mesh assembly, it is necessary to organize the rotation of the drum by means of an electric motor, which requires the organization of power supply.

US Pat. No. 4,261,822 (published April 14, 1981) describes a water filter device related to self-cleaning self-rotating filters for drainage pumps.

The device contains a rack to support the drum with an external filter mesh (or multiple meshes) above the bottom of the reservoir. In the central part of the drum there is a stationary pipe passing through its end plates with water intakes directed downwards, and the rack is connected to the pipe on both sides of the drum. On the one hand, a drain pipe is connected to the pipe with water intakes, which is connected to the pump and the drum drive system. On the other hand, a pressure pipe is introduced into the pipe with water intakes, which is connected to a collector located above the pipe, on which sprayers are installed. Pressurized water is supplied through the nozzles during operation to clean the inside of the outer filter mesh of the drum. Parallel to the outlet pipe, a system for extracting a part of the water flow is installed to drive the turbine, which, by means of a belt drive, rotates the drum with the mesh.

In the described filter design, the mesh of the drum is cleaned continuously as it rotates.

At the same time, the drum drive system is made quite complex, requiring the organization of the removal of a part of the suction water flow to the turbine, followed by the transfer of turbine rotation to the drum with a grid.

The closest in technical essence is a self-cleaning filter described in US patent for invention No. 7670482 (publ.02.03.2010), taken as a prototype.

The filter includes a rotating drum having a mesh sidewall to remove debris from the water as the water passes into the interior of the drum. Inside the drum there is an inlet chamber for collecting and supplying water to the suction pipe, which supplies water to the centrifugal pump.

The drum has first and second ends and a plurality of blades extending along the side wall of the drum between the first and second ends. The first end of the drum is supported by a shaft and bearing or other suitable structure to allow the drum to rotate freely about a horizontal axis during operation.

The second end of the drum is also supported by a support structure, which allows the drum to rotate about a horizontal axis. The second end of the drum is provided with an opening through which water can be taken from the interior of the drum. The support structure for supporting the second end of the drum includes a pair of support wheels that engage with an annular flange that extends around the opening of the drum. The support structure also includes a fixed plate that covers part of the hole in the second end of the drum, leaving a section through which the suction pipe is introduced into the interior of the drum.

The vanes between the first and second ends are used to rotate the drum by receiving driving force from water flowing past the drum (for example, a river or canal stream) or by receiving driving force from a power drive system that sprays water onto the drum vanes during pump operation. As shown in the Internet resource https://www.riverscreen.com/ similar filters from Riverscreen Inc., USA, are equipped with a drive system that includes a ramp with nozzles (https://www.riverscreen.com/wp-content/ uploads/2013/03/POWERDRIVE_INSTALL.pdf) into which water is supplied under pressure. Water jets, having passed through the spray holes of the nozzles, act sequentially on each of the blades of the drum, causing it to rotate.

Cleaning of the side wall of the drum is provided by a collector and a plurality of spray nozzles located inside the drum. The spray nozzles are directed to spray water in a radially outward direction from the inside of the drum, so that the sprayed water falls onto the inner surface of the side wall mesh material, displacing any debris stuck on the mesh material as the drum rotates, to provide a continuous self-cleaning effect on the drum.

The technical problem of the described self-cleaning filter drive is the insufficient efficiency of the power drive system of the drum due to the unidirectional spraying of water jets by the nozzles. When leaving the nozzle spray hole, the water jet forms a cone jet, therefore, when the nozzles are close to each other, the jets mix at some distance (as shown in Fig. 1, where the position numbers correspond to the positions of the claimed utility model), mutually extinguishing their pressure before approaching the next blade drum, which, accordingly, reduces the pressure on this blade. In the case of organizing a unidirectional installation of nozzles, in which the jets from them do not mix, the distance between the nozzles increases to such an extent that the number of nozzles on the ramp decreases by several units, which also leads to a total decrease in pressure on the next drum blade.

The specified technical problem in the drive of a self-cleaning filter for a sprinkler machine, containing a drum mounted for rotation in the support structure with a side wall made of mesh material on which longitudinal blades are located, made in the form of a ramp located on the support structure with nozzles installed with the possibility of adjusting the direction of the jet water from each of them is solved by the fact that the ramp with nozzles is installed with the possibility of changing its position relative to the supporting structure.

The drum is preferably provided with a first end and a second end and a plurality of longitudinal blades made in the form of L-shaped bars extending along the side wall of the drum between the first and second ends.

The drum, as a rule, is installed in a support structure, where the first end of the drum is movably connected to the first vertical post, the second end of the drum is movably fixed on the second post, made in the form of beams converging upwards, the first and second posts being connected by an upper bar. In this case, the ramp with nozzles can be installed on the upper bar of the supporting structure.

The support structure with the drum is preferably supported by a frame containing first and second beams located on both sides of the drum and additional elements fixed between the beams, while the frame is mounted on several floats.

Adjusting the direction of the water jet from each of the nozzles can be done by turning the nozzle relative to the ramp on which it is installed.

In another embodiment, the direction of the water jet from each of the nozzles can be adjusted by means of a ball jet installed in the nozzle.

The technical result is expressed in an increase in the efficiency of the power drive system of the self-cleaning filter drum by forming adjustable multidirectional nozzles, in which the mixing of cone jets is minimized, acting simultaneously on different blades. In addition, the arsenal of technical means for driving self-cleaning drum-type filters is expanding.

The given set of features in comparison with the prior art allows us to conclude that the proposed technical solution complies with the condition of patentability "novelty". At the same time, the claimed technical solution is applicable in agriculture with artificial irrigation of fields, therefore it meets the condition of patentability "industrial applicability".

The claimed utility model is shown in the following figures.

In FIG. 1 shows a self-cleaning filter drive for a sprinkler with an existing technical problem of mixing jets of water from nozzles, where the mixing zones are darkened.

In FIG. 2 shows a self-cleaning filter for a sprinkler, front view.

In FIG. 3 shows a self-cleaning filter for a sprinkler machine, top view.

In FIG. 4 shows view A (Fig. 2) of the first end of the drum.

In FIG. 5 shows view B (Fig. 4) of the drum drive.

In FIG. Figure 6 shows a self-cleaning filter for a sprinkler with nozzle ramp position adjustment relative to the support structure, front view.

In FIG. 7 shows view B (FIG. 6) of the first end of the drum.

In FIG. 8 shows a diagram of the drive of a self-cleaning filter for a sprinkler machine with a change in the position of the nozzles on the ramp in a "staggered order".

In FIG. 9 shows a diagram of the operation of a self-cleaning filter drive for a sprinkler machine with a change in the position of the ball jet in the nozzle.

Self-cleaning filter for sprinkling machine (Fig. 2, Fig. 3, Fig. 6) contains a drum 1 with a side wall 2 of mesh material, such as steel mesh, mounted for rotation in the support structure. The drum 1, as a rule, is provided with a first end 3, a second end 4 and a plurality of longitudinal blades 5, preferably made in the form of L-shaped strips, passing along the side wall 2 of the drum 1 between the first and second ends 3, 4.

Inside the drum 1 is connected to the suction pipe 6 inlet chamber with inlets (not shown). The drum 1 is installed in the support structure, where the first end 3 of the drum 1 is movably connected to the first vertical post 7 of the support structure, and the second end 4 of the drum 1 is movably fixed on the second post 8 of the support structure, made, for example, in the form of beams converging upwards, and the first and second posts 7, 8 are connected by the upper longitudinal bar 9. The supporting structure with the drum 1 is usually supported by a frame containing the first and second beams 10, 11 located on both sides of the drum 1, and additional elements 12 fixed between the beams 10 , 11, while the frame is mounted on several floats 13.

The self-cleaning filter drive (Fig. 4, Fig. 5, Fig. 7) is made in the form of a ramp 14 with nozzles 15, 16 located on the support structure, while the nozzles 15, 16 are installed with the ability to adjust the direction of the water jet from each of them. The direction of the jet of water from the nozzles is adjusted, for example, by turning the nozzles 16 in a known manner relative to the ramp 14 on which it is installed. In another case, the adjustment of the direction of the water jet from each of the nozzles 15, 16 can be organized by means of a ball jet 17, the use of which is widely known in car windscreen washer (https://stroy-technics.ru/article/dopolnitelnoe-oborudovanie-kuzova-gruzovogo- avtomobilya), where the jet direction is adjusted by turning the ball jet in the nozzle body (https://prometey96.ru/remont/kak-prochistit-forsunki-omyvatelya-lobovogo-stekla.html).

By changing the position of the nozzles 16 on the ramp 14 (Fig. 8) or the ball jet 17 (Fig. 9), the overlap of jets from adjacent nozzles 15 is minimized, which makes it possible to increase the efficiency of using the energy of each jet to rotate the filter drum 1. The most effective is the alternation of the angular arrangement of the nozzles 15, 16 (Fig. 8) with a change through one (in a "checkerboard pattern"), in which the jets of one angular row of nozzles 15 are directed to one longitudinal blade 5 of the filter drum 1, and the jets of another angular row nozzles 16 are directed to another longitudinal blade 5. Ramp 14 with nozzles 15, 16 can be installed on the upper bar 9 of the supporting structure and fixed to it rigidly or movably. In another case, the ramp 14 with nozzles 15, 16 is installed with the possibility of changing its position relative to the support structure, for example, by means of an additional bracket 18 moving relative to the support structure with the possibility of fixing on its racks 7, 8 with fasteners 19 (Fig. 6, Fig. 7), which, in combination with the rotation of the nozzles 15, 16 or the ball jet 17, allows you to choose the optimal distance to the longitudinal blades 5 of the filter drum 1.

In the initial state, the filter on the floats 13 is placed in the water source (river, lake, canal). Water under pressure is supplied through a supply hose (not shown) attached to the fitting 20, into the ramp 14 and then to the nozzles 15, 16. Water jets from the nozzles 15, 16 act on the longitudinal blades 5 of the filter drum 1, causing the drum 1 to rotate, in which the side wall 2 of the drum 1 is continuously cleaned by jets of water directed at it from the inside of the drum 1.

It should be noted that the above embodiments are illustrative and not restrictive of the utility model, and that those skilled in the art will be able to develop many alternative embodiments without departing from the scope of the appended claims of the utility model. By itself, the fact that certain criteria are listed in mutually different dependent claims of a utility model does not indicate that a combination of these criteria cannot be used to obtain a positive effect.

Claims (7)

1. The drive of a self-cleaning filter for a sprinkling machine, containing a drum mounted for rotation in the support structure with a side wall made of mesh material, on which longitudinal blades are located, made in the form of a ramp located on the support structure with nozzles installed with the ability to adjust the direction of the water jet from each of them, characterized in that the ramp with nozzles is installed with the possibility of changing its position relative to the support structure. 2. The self-cleaning filter drive according to claim 1, characterized in that the drum is provided with a first end and a second end and a plurality of longitudinal blades made in the form of L-shaped bars passing along the side wall of the drum between the first and second ends. 3. The self-cleaning filter drive according to claim 1, characterized in that the drum is installed in a support structure, where the first end of the drum is movably connected to the first vertical post, the second end of the drum is movably fixed on the second post, made in the form of beams converging upwards, and the first and the second rack are connected by the upper bar. 4. The self-cleaning filter drive according to claim 3, characterized in that the ramp with nozzles is installed on the upper bar of the supporting structure. 5. The self-cleaning filter drive according to claim 1, characterized in that the supporting structure with the drum is supported by a frame containing the first and second beams located on both sides of the drum, and additional elements fixed between the beams, while the frame is mounted on several floats. 6. The self-cleaning filter drive according to claim 1, characterized in that the direction of the water jet from each of the nozzles is adjusted by turning the nozzle relative to the ramp on which it is installed. 7. Self-cleaning filter drive according to claim 1, characterized in that the direction of the water jet from each of the nozzles is adjusted by means of a ball jet installed in the nozzle.

Images