SU1741941A1 - Device for washing inner surfaces of articles - Google Patents

Abstract

Use: cleaning of internal surfaces of products from contamination, washing various containers, containers, cylinders, etc. SUMMARY OF THE INVENTION: A device for flushing the inner surfaces of products has a feed inlet, a nozzle mounted thereon with openings, a device for curling the flow, and a rotating flow interrupter. The device is provided with a lid with openings for its end wall mounted on the free end of the nozzle, the flow interrupter is designed as a hollow cylindrical insert with through radial grooves in its walls, and the device for swirling the flow is installed inside the flow interrupter. Radial grooves are made on the end surface of the flow interrupter on the side of the cover with the possibility of their periodic communication with openings in the cover. The holes in the nozzle and the cover are tangentially arranged to ensure rotation. 1 hp ff. 3 il. WITH S

Description

The invention relates to the cleaning of the inner surfaces of products from various contaminants and can be used to clean various containers, containers, ores, etc.

A device for blasting the inner surfaces of hollow objects is known, consisting of a cylindrical body with radial holes and a spray sleeve freely mounted on it with nozzle holes. Inside the cylindrical body there is a stem that can be moved along the body.

When the device is operating, the cleaning solution, the passage through the internal channel of the cylindrical body to the nozzle openings of the spray sleeve, will expire on the surface to be treated. To change the parameters of the working medium, the rod is moved in the internal stepped channel.

The disadvantage of this device is the low quality of washing the internal surfaces of the products due to unsystematic sweeping of the surface of the product as well as the gradual filling of the product with detergent solution.

There is a known method of washing containers and a device for its implementation, which includes supplying the working reagent through the nozzle to the inside of the container by creating a stream of jets in the plane of the perpendicular axis of the nozzle and a pulsating stream of jets in the direction coinciding with the axis of the nozzle. The latter provides the displacement of the plane of impact of the jets with the lateral surface

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ry during its rise due to jet power jets.

A device that implements a known method contains an inlet nozzle with a nozzle, which is a hollow cylinder with radial holes formed in its walls. The nozzle is provided with a means for swirling the flow at the inlet thereof and a flow breaker located at the outlet and rotatably mounted about the axis. Longitudinal grooves are formed in the walls of the flow interrupter, and holes are made in the end of the flow interrupter. In the walls of the nozzle at the point of contact with the flow interrupter, L-shaped channels are formed for communication with openings in the end face of the flow interrupter.

The known device operates as follows.

The working reagent, twisting inside the nozzle by means of a device for swirling the flow, forms annular streams of jets through the radial holes in the wall of the nozzle, and also causes the flow interrupter to rotate. When the flow breaker rotates, the holes in its end periodically coincide with the L-shaped channels in the nozzle walls, thereby creating a pulsation of the jet flow in the direction coinciding with the nozzle axis, and the container is lifted causing the collision plane of the annular flows relative to the container wall.

The effectiveness of the known device is determined by the stabilization of the movement of the swirling flow of the working reagent. The flow rate of the working reagent gradually, as the flow progresses toward the exit of the nozzle, on which the flow interrupter is placed, is extinguished by friction, which in turn affects directly the rotation of the flow interrupter. This is especially apparent when washing long products. In this case, the distance between the flow swivel device and the rotating flow interrupter can be significant, therefore the effect of the flow curl will weaken as the nozzle reaches the outlet and the rotation efficiency of the chopper can be low. Changing the working reagent parameters (flow, pressure, velocity, viscosity) also limits the effect of curling and rotation of the chopper.

The purpose of the invention is to increase the cleaning efficiency and expand the technological capabilities of the device.

The goal is achieved by the fact that the device is equipped with a lid with openings in its end wall, the lid is fixed rigidly at the free end of the nozzle, the flow interrupter is made in the form of a hollow cylindrical insert with through radial grooves in its walls, the device for twisting the flow is made in the form of a helical 0, installed inside the flow breaker and coaxial to it. When the reagent is fed into the nozzle, its streamlines as they move inside the nozzle are curved along the helix at the location

5 helical guide. Due to the effect of the rotational movement of the reagent on the flow interrupter, the latter is rotated.

1 shows a device for

0 washing the internal surfaces of products, the general view; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.

The device contains inlet pipe 1 with inlet pipe 2 and nozzle

5 3. The nozzle 3 is provided with a flow interrupter 4 made in the form of a hollow cylindrical insert with through radial grooves 5 installed along the axis of the nozzle 3 so as to be rotatable. Inside the flow interrupter 4 there is a screw guide 6, one end of which is centered on the inner surface of the supply tube 2, and the other is rigidly connected to the cover 7 fixed rigidly at the free end of the nozzle 3.

Holes 8 are made in the wall of the nozzle 3, and radial grooves 9 are made in the end face of the flow interrupter 4 to periodically communicate with the holes 10 in

0, the cover 7 when rotating the flow breaker 4. At the same time, the holes 8 in the wall of the nozzle and the holes 10 in the cover 7 are located at an angle of 110-165 to the corresponding surfaces of the grooves 5 and the slots 9 of the breaker 5 liters 4 flows. The article 11 to be washed is placed in the stopper 12.

The device works as follows.

Washing product 11

0 on, go to the nozzle 3. In this position, the working reagent is brought into the product 11 through the inlet pipe 2 and the screw guide 6 by means of the inlet pipe. Through the screw guide 5, the working reagent, spiraling up, acts through the radial grooves 5 of the flow breaker 4 and causes it to rotate inside the nozzle 3. The tangential arrangement of the holes 8 in the wall of the nozzle and the holes 10 in the lid

7, with respect to the respective surfaces of the grooves 5 and the slots 9, the corresponding reactive moments in the flow appear to ensure rotation of the flow interrupter 4.

The working reagent, which has elapsed through the holes 8, creates annular streams of jets in a plane perpendicular to the axis of the nozzle 3, the collision of which with the inner surface of the product 11 causes it to be cleaned of contaminants. When this occurs, a pulsating stream of jets through the holes 10 in the lid 7, communicated with the internal cavity of the nozzle through the radial grooves 9 in the end face of the interrupter 4 flow. At the time of communication of the holes 10, and the radial grooves 9, the stream of jets lifts the product 11, and at the time of their shut-off the stream of jets is absent and the product 11 is lowered into the stop 12.

Making the nozzle composite allows flushing of products with a small neck, while the outer diameter of the supply tube may be small enough to not prevent the working reagent from flowing out of the inner surface of the product, and the outer diameter of the nozzle is determined by the diameter of the neck. free installation of the product.

Using the proposed device, it is possible to rinse long products, as the reagent is twisted directly at the nozzle section where the flow interrupter is located, thereby the rotational rotation energy of the working reagent is not quenched as it moves inside the nozzle

The use of the proposed device makes it possible to increase the cleaning efficiency, expand the technological capabilities for washing long products, and also allows the device to be embedded directly into the system to be cleaned inside the products. Stabilizing the twisting of the working reagent stream inside the flow interrupter creates optimal conditions for creating annular streams of active jets and a pulsating flow of jets, thereby improving the quality of the flushing and process performance by 30-40%.

Claims (2)

1. A device for flushing the internal surfaces of products, containing a movable nozzle, a nozzle mounted thereon with openings in its walls, a device for twisting the flow in the nozzle, and a flow interrupter, mounted rotatably around the longitudinal axis of the nozzle, characterized in that, in order to increase the cleaning efficiency and expand the technological capabilities, it is provided a lid with holes in its end wall, the lid being rigidly mounted on the free end of the nozzle, the flow interrupter is designed as a hollow cylindrical insert with through radial grooves in its walls, and the device for twisting the flow is made in the form of a helical guide installed inside the flow interrupter and coaxially with it, with one of the ends of the spiral guide rigidly connected to the lid, on the end surface of the flow interrupter from the side of the lid radial grooves with the possibility of their periodic communication with the corresponding holes in the lid, with the holes in the walls of the nozzle and in the lid are tangential to the corresponding surface of the canal wok and chopper slots to create corresponding jet torques in the flow to ensure rotation of the flow chopper. 2. The device according to claim 1, of which is that the holes in the walls of the nozzle and in the lid are located at an angle of 110-165 ° to corresponding surfaces of the grooves and grooves of the chopper. Li tt76lW-L 77 eight FIG. 2 Bb