WO2016013953A1

WO2016013953A1 - Method for underwater hydrodynamic cleaning of hard surfaces and device for implementing same

Info

Publication number: WO2016013953A1
Application number: PCT/RU2014/000562
Authority: WO
Inventors: Владислав Олегович БОЧКОВ
Original assignee: Владислав Олегович БОЧКОВ
Priority date: 2014-07-25
Filing date: 2014-07-25
Publication date: 2016-01-28

Abstract

The invention relates to methods and devices which are specifically intended for cleaning using a liquid by means of a pressurized or atomized jet, and especially relates to methods for the underwater hydrodynamic cleaning of hard surfaces, said methods involving installing hydrodynamic nozzles on a rotating portion of a collector, the collector being installed on a housing with support wheels, feeding pressurized water from a water pump to the hydrodynamic nozzles by means of water pipes, cleaning a hard surface using an atomized jet from the hydrodynamic nozzles, and using a propulsor for moving the device along the hard surface to be cleaned, and also relates to devices for implementing same and can be used for cleaning the underwater surfaces of vessels and for other underwater cleaning tasks. According to the invention, the propulsor is in the form of a hydraulic oil motor, the hydraulic motor is connected to oil pipes of an oil circulation system, the rate of displacement of the device is controlled using an oil-feed adjustment means, a stationary portion of the collector is connected to a convex casing which is affixed on the housing, and the degree to which the surface to be cleaned is affected is adjusted via a means for adjusting the gap between the device housing and the surface to be cleaned. The achieved technical result consists in a device which is easier to use, and in a safer method for using same.

Description

METHOD FOR UNDERWATER HYDRODYNAMIC CLEANING OF SOLID SURFACES AND A DEVICE FOR ITS IMPLEMENTATION

FIELD OF THE INVENTION

The invention relates to methods and devices specifically designed for cleaning using liquids using jets under pressure or spraying, and in particular to methods for underwater hydrodynamic cleaning of hard surfaces, in which hydrodynamic nozzles are placed on a rotating part of a manifold mounted on a housing with support wheels, hydrodynamic nozzles feed pressurized water through water pipes from a water pump, clear a solid surface with a spray jet from hydrodynamic nozzles, move dissolved device according to the solid surface being cleaned via propulsor, and also to the devices for their implementation, and can be used for cleaning of underwater surfaces of ships or other underwater cleaning work. The prior art method.

According to the first of its aspects, the present invention relates to a method for underwater hydrodynamic cleaning of hard surfaces, in which:

· Place hydrodynamic nozzles on the rotatable part of the collector mounted on the housing with the support wheels,

• to the hydrodynamic nozzles feed water under pressure from the water pump,

• clear the hard surface with a spray jet from hydrodynamic nozzles,

• move the device on a cleaned hard surface using a mover.

Such a method is described in the patent of the Russian Federation for the invention Ns 2155698, published 10.09.2000. This method is the closest in technical essence and the achieved technical result and is selected for the prototype of the invention as a method.

The disadvantage of this prototype is its low usability and low safety of its use. This is due to the fact that when working underwater, the underwater flow can reach a speed of 2.5 m / s. In order for this method to be able to move the device for hydrodynamic cleaning of solids, significant traction is required. Because of this gigantic traction that the propulsion device of such a device, which is designed as a propeller in the nozzle, must give out, there is a danger of controlling such a device for a diver. And such a danger is created due to:

- the immediate proximity of such a device to a diver,

- difficult working conditions under water,

- limited visibility,

- the presence of screws on the diver’s face, rotating at a speed of more than a thousand revolutions per minute.

Additionally, such a propeller creates high noise, as well as strong turbulence, which prevents the diver from working. Another disadvantage is that to power the mover of such a device, you need a gigantic additional equipment that must be placed on the surface, and which does not fit on the accompanying floating means, and can make the cost of such an installation extremely high.

Disclosure of the invention as a method.

Based on this original observation, the present invention mainly aims to propose a method for underwater hydrodynamic cleaning of hard surfaces, which allows at least smoothing at least one of the above disadvantages, namely, to improve the usability of the device and increase the safety of its method use.

To achieve this goal, the method of underwater hydrodynamic cleaning of hard surfaces, characterized essentially by what is used in as a propulsion device, an oil hydraulic motor that is kinematically connected to at least one of the support wheels.

Thanks to this advantageous characteristic, it becomes possible to drive the device using an independent hydraulic system, which is independent of the main water supply system.

Next, the hydraulic motor is hydraulically connected to the oil lines of the oil circulation system.

Thanks to this advantageous characteristic, it becomes possible to set the propulsion device in motion by circulating oil in the oil lines.

Next, adjust the speed of movement of the device using means for regulating the supply of oil connected to the hydraulic oil engine.

Thanks to this advantageous characteristic, it becomes possible to change the speed of such a device during the operation of the diver.

Next, the fixed part of the collector is connected to the casing fixed to the housing, and the casing is convex in shape, which is formed by rotation of the curve.

Thanks to this advantageous characteristic, it is possible to create a space for areas with reduced pressure, which hold the device on the surface to be cleaned, using a casing of this shape.

Next, the degree of impact on the surface being cleaned is controlled by means of adjusting the gap between the device body and the surface being cleaned.

Thanks to this advantageous characteristic, it becomes possible to adjust the degree of impact on the surface being cleaned. Indeed, the closer the hydrodynamic flow to the surface being cleaned, the higher the degree of purification.

There is a variant of the invention in which the effect on the surface being cleaned is created by spraying water through cavitation nozzles.

Thanks to this advantageous characteristic, it becomes possible to clean the surface using a cavitation jet, which is created by cavitation nozzles. There is a variant of the invention in which the effect on the surface being cleaned is created by supplying water with a water pump under pressure in the range of 100-150 bar.

Thanks to this advantageous characteristic, it becomes possible to organize optimal pressure conditions for cleaning the surface to be cleaned.

There is a variant of the invention in which the effect on the surface being cleaned is created by supplying water with a water pump with a flow rate in the range of 300-400 l / min.

Thanks to this advantageous characteristic, it becomes possible to organize optimal conditions for the flow of supplied water to clean the surface being cleaned.

There is an embodiment of the invention in which an additional hydrodynamic nozzle adapted to clear a hard surface in front of the support wheel is mounted on the housing, at least in front of one of the support wheels, which is rotatable and connected to the steering wheel. An additional hydrodynamic nozzle is connected through a water supply to a water pump.

Thanks to this advantageous characteristic, it becomes possible to clear the surface to be cleaned in the region of the drive wheel in order to ensure adhesion of said wheel to the surface to be cleaned.

The prior art device. On its other side, the present invention relates to a device for underwater hydrodynamic cleaning of hard surfaces, comprising a housing with support wheels, at least one of which is rotatable and connected to the steering wheel, a collector comprising a fixed and rotatable part, hydrodynamic mounted nozzles, and the fixed part of the collector is connected to a water supply system adapted for connection to a water pump, and a mover for moving the device.

Such a device is described in the patent of the Russian Federation for the invention Ns 2155698, published 10.09.2000. This device is the closest in technical essence and the achieved technical result and is selected as a prototype of the invention as a device.

The disadvantage of this prototype is its low usability and low safety of its use. This is due to the fact that when working underwater, the underwater flow can reach a speed of 2.5 m / s. In order to be able to move the device for hydrodynamic cleaning of solids, significant traction is required. Because of this gigantic traction that the propulsion device of such a device, which is designed as a propeller in the nozzle, must give out, there is a danger of controlling such a device for a diver. And such a danger is created due to:

- the immediate proximity of such a device to a diver,

- difficult working conditions under water,

- limited visibility,

- the presence of screws on the face of the diver, rotating at a speed of, as a rule, more than a thousand revolutions per minute.

Additionally, such a propeller creates high noise, as well as strong turbulence, which prevents the diver from working. An additional drawback is that to power the mover of such a device, you need a gigantic additional equipment that must be placed on the surface, and which does not fit on the accompanying floating means, and can make the cost of such an installation extremely high.

Disclosure of the invention as a device.

The present invention mainly aims to provide a device for underwater hydrodynamic cleaning of hard surfaces, comprising a housing with support wheels, at least one of which is rotatable and connected to the steering wheel, a collector including a fixed and a rotatable part, fixed to a rotatable part hydrodynamic nozzles, and the fixed part of the collector is connected to a water supply system adapted for connection to a water pump, and a mover for moving the device, allowing at least smooth out at least one of the above disadvantages, namely, to provide an increase ease of use of the device and improving the security of its use.

To achieve this goal, the propulsion device is made in the form of an oil hydraulic motor kinematically connected to at least one of the support wheels, which is rotatable and connected to the steering wheel.

In addition, the hydraulic motor is hydraulically connected to the oil flow control means and adapted to connect to the oil lines of the oil circulation system.

In addition, the fixed part of the collector is rigidly connected to a casing fixed to the housing, which has a convex shape. Inside the casing there is a rotatable part of the collector, on which hydrodynamic nozzles are fixed. The convex shape is formed by the rotation of the curve

In addition, the device has a means of adjusting the gap between the housing and the surface being cleaned.

There is an embodiment of the invention in which the device includes several collectors, the fixed parts of which are rigidly connected to the housings fixed to the housing.

Thanks to this advantageous characteristic, it becomes possible to expand the area of the surface to be cleaned at a time. There is an embodiment of the invention in which the means for adjusting the oil supply is made in the form of a pressure reducer in the oil circulation system.

Thanks to this advantageous characteristic, it becomes possible to adjust the speed of movement of the device on the surface to be cleaned.

There is an embodiment of the invention in which the hydraulic oil motor is kinematically connected to the support wheels, which are rotary and connected to the steering wheel.

Thanks to this advantageous characteristic, it becomes possible to control the movement of the device using the drive support wheel.

There is an embodiment of the invention in which the clearance adjustment means is made in the form of at least one screw mechanism connected to at least a support wheel.

Due to this advantageous characteristic, it becomes possible to adjust the gap between the device body and the surface being cleaned, and with it the degree of the effect being cleaned. The smaller the gap, and the closer the body of the device to the surface being cleaned, the closer to it are the rotating hydrodynamic nozzles that spray the flow, the stronger the degree of effect being cleaned.

There is an embodiment of the invention in which at least one of the support wheels, which is rotatable and connected to the steering wheel, has at least one additional hydrodynamic nozzle mounted on the housing and connected to the water supply. An additional hydrodynamic nozzle is adapted to clear a hard surface in front of the support wheel.

Thanks to this advantageous characteristic, it becomes possible to increase the adhesion to the surface of the driving support wheel. Indeed, the underwater surface can be covered not only with hard growths, but also with silt, algae and others, which makes it difficult to grip the wheel with the surface being cleaned. Therefore, it is very convenient to first clean it in the area of movement of the device.

There is an embodiment of the invention in which the casing is made of plastic and has openings for water outlet. Thanks to this advantageous characteristic, it becomes possible to simply perform the casing, and perform it in a form suitable for use.

There is a variant of the invention in which the hydrodynamic nozzles are made in the form of cavitation nozzles.

Due to this advantageous characteristic, it becomes possible to create a stream that acts on the surface being cleaned in the form of a cavitation stream, that is, with air bubbles, which increases the degree of purification.

Thus, in this invention the task is to increase the usability of the device and increase the safety of its use. The problem is solved using the above characteristics.

The set of essential features of the invention is unknown from the prior art for devices of similar purpose, which allows us to conclude that the criterion of "novelty" for the invention.

A brief description of the drawings. Other distinguishing features and advantages of the invention clearly follow from the description below for illustration and not being restrictive, with reference to the accompanying drawings, in which:

- figure 1 depicts a functional diagram of a device for underwater hydrodynamic cleaning of hard surfaces according to the invention,

- figure 2 schematically depicts a bottom view of a device for underwater hydrodynamic cleaning of hard surfaces according to the invention,

- figure 3 schematically depicts a top view of a device for underwater hydrodynamic cleaning of hard surfaces according to the invention,

- figure 4 schematically depicts the steps of a method for underwater hydrodynamic cleaning of hard surfaces, according to the invention.

According to figure 1 for underwater hydrodynamic cleaning of hard surfaces contains a housing 1 with support wheels 2, at least one of which 21 is made rotatable and connected to the steering wheel 23, a collector including a fixed 31 and a rotating part 32.

Hydrodynamic nozzles 33 are fixed on the rotatable part of the collector 32. The fixed part of the collector 31 is connected to a water supply 4 adapted to be connected to the water pump 41. The water pump 41 can be located on the accompanying floating vehicle, indicated in figure 1 as 9.

The device comprises a mover for moving the device. The mover is made in the form of an oil hydraulic motor 5 kinematically connected to at least one of the support wheels 21, which is rotatable and connected to the steering wheel 23.

The hydraulic motor 5 is hydraulically connected to the oil flow adjusting means 6. The hydraulic motor 5 is connected to the oil circuits of the oil circulation system 61 and 62, which are adapted to be connected to the hydraulic oil pump 63. The hydraulic oil pump 63 can also be located on the associated floating means 9.

The fixed part of the collector 31 is rigidly connected to a casing 7 fixed to the housing, which has a convex shape. Inside the casing is the rotatable part of the manifold 32, on which the hydrodynamic nozzles 33 are fixed. The convex shape is formed by the rotation of the curve.

The device has a means 8 of adjusting the gap between the housing and the surface being cleaned.

The device may include several collectors, the fixed parts of which are rigidly connected to the housings mounted on the housing.

Means for regulating the supply of oil 6 can be made in the form of a pressure reducer in the oil circulation system.

The hydraulic oil motor 5 can be kinematically connected to several support wheels 21, which are also rotary and connected to the steering wheel 23. This is done to increase the speed of movement of the device. In the figures, one such wheel 21 is drawn everywhere. The drive wheels can be mounted on the device both in front, that is, in the direction of travel, and behind, that is, against the course of movement. The clearance adjustment means 8 can be made in the form of at least one screw mechanism connected to at least a support wheel 21.

At least one of the support wheels 21, which is rotatable and connected to the steering wheel 23, can be equipped with at least one additional hydrodynamic nozzle 34, mounted on the housing 1 and connected to the water supply 4. The additional hydrodynamic nozzle 34 is adapted for cleaning solid surface in front of the support wheel 21. (Shown in figure 1 and not shown in other figures).

The casing 7 may be made of plastic and may have openings 71 for water outlet. See figure 2. In general, the casing may also be made of another material, for example, aluminum.

Hydrodynamic nozzles 33 can be made in the form of cavitation nozzles.

The figure 1 also indicates the water level in the reservoir as 91. On the swimming means 9 are a water pump 41 and an oil hydraulic pump 63. The water pump 41 is connected by a water pipe 4 to the hydrodynamic nozzles of the device. The oil pump 63 has two oil lines - oil supply 61 to the hydraulic motor 5, and oil drain 62 from the hydraulic motor 5.

The arrows indicate the direction of fluid flow in the pipelines (water and oil).

For zero buoyancy, the housing 1 of the device contains a foam 1 1. Also, the housing 1 has an external metal frame of the housing 12. The metal frame 12 and the wheels 2 of the device serve as a limiter, which prevents contact of the rotating hydrodynamic nozzles 33 with the surface being cleaned.

The water supply 4 may have means for measuring pressure 42. An embodiment of the invention.

Device for underwater hydrodynamic cleaning of hard surfaces works as follows. According to figure 4: Stage A1. Hydrodynamic nozzles are placed on the rotatable part of the collector mounted on the housing with the support wheels.

Stage A2. The casing is convex in shape, which is formed by rotation of the curve. The fixed part of the collector is connected with a casing fixed to the housing,

Stage A3. Dip the device into water until it touches the surface being cleaned. This stage can be done without auxiliary means (cranes, winches, etc.), because the weight of the device is 50-60 kg. When immersed in water, the device has zero buoyancy due to foam plates located on the device. A diver swims up to the ship, presses the device to the surface being cleaned.

Stage A4. The hydraulic motor is hydraulically connected to the oil lines of the oil circulation system.

Stage A5. Hydrodynamic nozzles are supplied with water under pressure from a water pump. To do this, the water pump on the auxiliary boat is turned on, pressure is applied, the hydrodynamic nozzles begin to rotate, since they are specially located at a small angle. In this case, the device is attached to the surface being cleaned due to the fact that a zone of reduced pressure begins to form under the covers. The suction power allows you to release the equipment, that is, leave it on the surface being cleaned, for example, on the hull of the vessel being cleaned, without the support of a diver. This property allows you to perform work on this device with an underwater flow of up to 2 m / s, as well as carry out the transition from one cleaning zone of the ship to another (from the cheekbone to the bottom and vice versa).

Stage A6. The hard surface is cleaned with a spray jet from hydrodynamic nozzles. The effective cleaning distance from the nozzles to the surface is from 6 to 10 cm. The frame of the body and wheels serve as a limiter that prevents the hydrodynamic nozzles from touching the surface being cleaned.

Stage A61. The effect on the surface being cleaned is created by spraying water through cavitation nozzles.

Stage A62. The effect on the surface being cleaned is created by supplying water with a water pump under pressure in the range of 100-150 bar. Stage A63. The impact on the surface being cleaned is created by supplying water with a water pump with a flow rate in the range of 300-400 l / min.

Stage A64. The degree of impact on the surface being cleaned is controlled by means of adjusting the gap between the device body and the surface being cleaned.

Stage A7. Move the device on a cleaned hard surface using a mover. A diver can start moving by opening the oil supply valve to the hydraulic motor. In this case, an oil hydraulic motor is used as a propulsion device, which is kinematically connected to at least one of the support wheels,

Stage A8. Adjust the speed of movement of the device using means for adjusting the oil supply connected to the hydraulic oil engine,

Stage A9. Install on the housing 1 at least in front of one of the support wheels 21, which is rotatable and connected to the steering wheel 23, an additional hydrodynamic nozzle 34, adapted to clear a solid surface in front of the support wheel 21. In this case, an additional hydrodynamic nozzle 34 is connected via a water supply 4 to the water pump 41. (shown in figure 1).

The sequence of steps is exemplary and allows you to rearrange, add or perform some operations at the same time without losing the ability to provide movement of the device and the work of cleaning the surface. Industrial applicability.

The proposed device for underwater hydrodynamic cleaning of hard surfaces can be carried out by a specialist in practice and upon implementation ensures the implementation of the declared purpose, which allows us to conclude that the criterion of "industrial applicability" for the invention is met.

In accordance with the proposed invention made a prototype device for underwater hydrodynamic cleaning of hard surfaces. Tests of the prototype device showed that it provides the ability to:

- independent movement in any conditions (current, tides, etc.) with a cleaning speed of 2-4 thousand square meters. meters per hour;

- non-contact cleaning;

- low pressure cleaning due to cavitating nozzles (pressure is only 100-150 bar at the inlet to the device).

- safety for the user of the drive system;

- installation of additional hydrodynamic nozzles directly on the front wheel, so that the water flow is directed in front of the wheel and clears the surface for movement of the front wheel and, consequently, better adhesion to the surface.

- regulation of the distance from the hydrodynamic nozzles to the surface being cleaned, which allows you to clean both small and strong underwater fouling.

An additional useful technical result of the claimed invention is that it allows:

- through the use of nozzles with cavitation, as well as the special geometry of plastic casings, to create a suction force of the device to the surface being cleaned, which allows cleaning under strong undercurrent and without the use of physical force by a diver;

- install from 1 to 8 drive wheels all with the same equipment on the surface, which will increase speed and throughput;

- make a connection from 2 to 5 casings inside in one device that will increase the cleaning area in one pass;

- due to the presence of a hydraulic drive to the wheels, simplify the work of a diver;

- increase the cleaning rate to 2500 sq.m .;

- perform cleaning against undercurrent;

- provide a wide cleaning zone in one pass - 1, 5 m;

- due to the presence of the steering mechanism to simplify control under water and improve maneuvering.

Thus, in this invention the goal is achieved - improving the usability of the device and improving security how to use it. In addition, the above advantages show high efficiency of the proposed method and device.

Claims

Claim

1. The method of underwater hydrodynamic cleaning of hard surfaces, in which

• place hydrodynamic nozzles on the rotatable part of the collector mounted on the housing with support wheels,

• to the hydrodynamic nozzles feed water under pressure from the water pump,

• clear the hard surface with a spray jet from hydrodynamic nozzles,

· Move the device on a cleaned hard surface using a mover,

characterized in that

using an oil hydraulic engine as a propeller, which is kinematically connected to at least one of the support wheels, and by the fact that the hydraulic engine is hydraulically connected to the oil lines of the oil circulation system,

and the fact that they regulate the speed of movement of the device using means for regulating the supply of oil connected to the hydraulic oil engine,

and the fact that they connect the fixed part of the collector with a casing fixed to the housing,

and the fact that the casing is convex in shape, which is formed by the rotation of the curve

and the fact that they regulate the degree of impact on the surface being cleaned by means of adjusting the gap between the device body and the surface being cleaned.

2. The method according to p. 1, characterized in that the effect on the surface being cleaned is created by spraying water through cavitation nozzles.

3. The method according to p. 1, characterized in that the impact on the surface being cleaned is created by supplying water with a water pump under pressure in the range of 100-150 bar.

4. The method according to p. 1, characterized in that the impact on the surface being cleaned is created by supplying water with a water pump with a flow rate in the range of 300-400 l / min.

5. The method according to p. 1, characterized in that installed on the housing at least in front of one of the support wheels, which is rotary and connected to the steering wheel, an additional hydrodynamic nozzle adapted to clear a solid surface in front of the support wheel and that connect an additional hydrodynamic nozzle by means of a water supply with a water pump.

6. A device for underwater hydrodynamic cleaning of hard surfaces, comprising a housing with support wheels, at least one of which is rotatable and connected to the steering wheel, a collector that includes a fixed and a rotatable part, hydrodynamic nozzles are fixed to the rotatable part, and a fixed part of the collector connected to a water supply system adapted for connection to a water pump, and a mover for moving the device, characterized in that the mover is made in the form of an oil hydraulic motor, kinematically connected to at least one of the support wheels, which is rotatable and connected to the steering wheel, and that the hydraulic motor is hydraulically connected to the means for adjusting the oil supply and adapted for connecting to the oil pipelines of the oil circulation system, and that the fixed part of the manifold is rigidly connected to a casing fixed on the housing, which has a convex shape, and the fact that inside the casing there is a rotatable part of the collector on which the hydrodynamic nozzles are fixed, and that the convex The form is formed by rotation of the curve and the fact that the device has means for adjusting the gap between the body and the surface being cleaned.

7. The device according to claim 1, characterized in that the device includes several collectors, the fixed parts of which are rigidly connected to the housings mounted on the housing.

8. The device according to claim 1, characterized in that the means for adjusting the oil supply is made in the form of a pressure reducer in the oil circulation system.

9. The device according to claim 1, characterized in that the hydraulic oil engine is kinematically connected to the support wheels, which are rotary and connected to the steering wheel.

10. The device according to claim 1, characterized in that the clearance adjustment means is made in the form of at least one screw mechanism connected to at least a support wheel.

1 1. The device according to claim 1, characterized in that at least in front of one of the support wheels, which is rotary and connected to the steering wheel, at least one additional hydrodynamic nozzle is mounted, mounted on the housing and connected to the water supply and that an additional hydrodynamic nozzle is adapted to clear a hard surface in front of the support wheel.

12. The device according to claim 1, characterized in that the casing is made of plastic and has openings for water outlet.

13. The device according to claim 1, characterized in that the hydrodynamic nozzle is made in the form of cavitation nozzles.