RU58394U1 - DEVICE FOR CLEANING THE INTERNAL CAVITY OF THE PIPELINE (OPTIONS) - Google Patents

Abstract

The proposal relates to devices for cleaning hollow products, for example, pipelines from the inside using moving devices and remove deposits from the hollow of pipelines. The objective and technical result of the utility model associated with the essential features is the following: increase productivity, expand the technological capabilities of the device, increase reliability, durability, performance. Creating a compact design that improves productivity, which includes cutting edges on the tip of the cup (option 1), knives on the cup itself and the front of the turbine (option 2), the cavity in which the blades equipped with knives are made open (option 3). Distinctive features of the prototype signs are the following. In option 1, the cutting unit is made in the form of a screw screwed onto the turbine nozzle of the glass containing a tip with cutting edges. According to option 2, the glass screwed onto the turbine nozzle contains knives; knives are also installed on the front of the turbine. In option 3, the cutting unit contains knives mounted on the blades of the turbine, and the cavity with blades is made open with the possibility of interaction of the blades with knives with removable fractions.

Compared with similar devices for cleaning pipelines, the claimed device does not have "capricious" spools with their reversibility for the reciprocating movement of the working tip, with the need to remove it from the "dead" position and the associated loss of power. The claimed device can be used for cleaning underground and surface piping systems for cleaning pipes from soot, scale and other deposits. The device is especially effective for cleaning clogged, unused and overgrown sewers for a long time. On the claimed device made working drawings, manufactured and tested prototype. Tests have shown high efficiency in cleaning long-term inactive sewer pipelines. The shaft speed at the previous consumption of the working agent, as well as productivity increased by 25-30%. The device operates in a wide pressure range from 10 to 200 atm. Publish figure 1.

Description

The invention relates to devices for cleaning hollow products, for example, pipelines from the inside using moving tools and removing deposits from the cavity of the pipelines.

The “Device for removing deposits from the cavity of the pipeline” is known, see description to USSR copyright certificate No. 1484392, Cl. 08 V 9/04, 1967, containing a hollow body with a nozzle for the working agent and an annular cavity with an elastic outer wall mounted in the housing along its axis with the possibility of reciprocating movement of the spool.

This “Device” does not provide for the removal of solid deposits, requiring significant mechanical forces. Insufficient reliability of the spool, difficult adjustment.

It is known "Device for cleaning the inner surface of the pipeline", described in the description of the author's certificate of the USSR No. 578123, Cl. 08 08/04, 1977, made in the form of nozzles with jet nozzles, having a smaller diameter tip with side and central nozzles. To increase the cleaning efficiency, the “device” is equipped with a spool made in the form of a perforated sleeve and located inside the nozzle. The applied axial impacts by the tip do not have sufficient force to destroy deposits in the pipe due to the need to reverse the spool by transferring the working fluid to its opposite cavities.

With a small length of movement of the spool, the tip does not have time to acquire sufficient energy. Spool adjustment is difficult and its operation is not reliable enough.

A known device for cleaning the inner surface of the pipeline - contains a tip with cutting edges mounted on a hollow shaft, on which a jet and turbine chamber are respectively located behind the tip, the latter of which has end walls with an axial hole for passage of the shaft and means for supplying a working fluid to the turbine chamber Wednesday. The device includes a housing 1 with rear jet nozzles 2. A sleeve 3 is connected to the housing 1 on the thread, into which the washers 4 and 5 are screwed to form a turbine chamber 6. A pin 7 is screwed onto the sleeve 3 for connection with the working agent supply hose. Inside the device there is a hollow shaft 8 on which the blades of the turbine 9 and the support ring 10 are rigidly fixed. A tip 11 with cutting edges is mounted on the front of the hollow shaft 8 on the thread.

The device is equipped with an ejector nozzle 12 installed by its output nozzle in the axial hole of the washer 5 of the end wall from the supply side of the working agent. The ejector nozzle 12 is located coaxially with the hollow shaft 8 and is in communication with its internal cavity (channel) 13. In the washers 4 and 5, which are the end walls of the turbine chamber 6, holes 14 are made for the directed supply of the working agent, respectively, to the blades of the turbine 9 and to the reactive the chamber 15 formed by the cavity of the housing 1. The washer 4 is simultaneously the end wall of the turbine 6, and the reactive 15 chambers.

The tip 11 is made in the form of a replaceable head. Depending on the nature of the state and content of deposits in the cavity and on the inner surface of the pipeline, corresponding cutting elements are installed on the tip 11. A replaceable head, the front part of which has an end mill 16 for destroying solid deposits in the pipe cavity, conical spiral knives 18 with a lateral cutting edge are fixed on the beam brackets 17 of the head

additional destruction of sediments and their transportation to the zone of action of jet jets.

The tip 11, made in the form of a figured knife, the blades 19 of which are S-shaped with a bend in the middle part to obtain a longer cut line. Such a replaceable head is most effective for destroying loose and porous deposits, it has end and side cutting edges. But each interchangeable head of the tip 11 is certainly equipped with an eccentric vibrator 20 to give the device during its operation movement along a conical and cylindrical spiral when cleaning pipelines of different diameters.

The eccentric vibrator 20 is rigidly connected to the body of the tip 11. The hollow shaft 8 is made with an axial channel 13 for supplying a working agent to the zone of action of the cutting elements of the tip 1 for erosion of destructible deposits. On the back of the hollow shaft 8, a turbine 9 is rigidly mounted, the curly blades of which are in the form of a screw spiral. The hollow shaft 8 is mounted to rotate around its axis, its longitudinal movement is limited by the support ring 10 and the support socket of the washer 5.

The device is equipped with an ejector nozzle 12 installed by its output nozzle in the axial hole of the end wall (washer) 5 from the supply side of the working agent.

To perform work on cleaning the inner surface of the pipeline, the device using the nozzle 7 is connected to the supply hose of the working agent.

This device see

invention of the USSR No. 1768336 V 08 V 9/14.

The main disadvantages of the device is the presence on the shaft in the turbine chamber of the screw. The screw cannot develop a large number of revolutions. The shaft has a longitudinal channel for supplying a working agent. During operation, the shaft constantly bends and fails.

A working agent, such as water, is supplied to the rear of the turbine chamber.

The turbine blades are screw-shaped. Water passing through the turbine chamber, rotating the turbine, pushes it forward. The turbine shaft rotates on radial bearings or bushings. With an increase in the supply of water to the turbine, the longitudinal force on the shaft increases, which leads to rapid wear of the support sleeves and radial bearings. For these reasons, the device is difficult structurally inefficient and unreliable in operation.

The known device (see RF patent for utility model No. 4301) consists of the following main components and parts:

Housings 1 with a reaction chamber 2 and jet rear nozzles 3, a turbine chamber 4, with end walls 5 and 6 in which there are openings 7 for the directed supply of the working agent to the blades 11, 12 and into the reaction chamber 2 of the housing 1.

The device comprises a shaft 8 on the front of which a tip 9 with cutting edges 10 is mounted. Two blades 11, 12 are rigidly fixed to the shaft 8 in the turbine chamber 4, the blades are welded to the shaft and deployed crosswise to each other at an angle of 90 °.

The turbine chamber 4 has a fitting 13 for connection with a supply hose of the working agent.

The tip 9 is made in the form of a replaceable screw head.

The device has the following disadvantages:

- not reliable in operation since jet nozzles are located in the front part in the jet chamber; therefore, the device is diverted into the fracture of the pipe being cleaned;

- it is difficult constructively since has a jet, turbine and pressure chamber;

- when working at high pressures of the working agent over 25 atm, the water stream feeds forward and seizes the shaft in the sleeve of the turbine chamber.

A device for cleaning the internal cavity of the pipeline, see patent R.F. No. 46887 for utility model 7 MKI V 08 V 9/04.

The device consists of the following main components and parts:

Cases 1 with a reaction chamber 2 and jet nozzles 3, a turbine chamber 4, with a side wall 5 and a flange 6, in the wall 5 there are openings 7 for the directed supply of the working agent to the blades 11 and into the reaction chamber 2 of the housing 1. The turbine chamber is made in the form long cylinder and mounted inside the pressure chamber. The pressure chamber 12 is screwed onto the flange of the turbine chamber to form a cavity 17 for the working agent.

The device comprises a shaft 8 on the front of which a tip 9 with cutting edges 10 is mounted, on the shaft 8 in the turbine chamber 4 there are blades 11 made on the shaft along its axis of rotation.

The blades 11 can be made in relation to an imaginary plane 18 in which lies the axis of rotation of the shaft 8 floor angle α in the range from 0 ° to 90 °.

At the end of the pressure chamber 12 there is a pin 13 for connection to the supply hose of the working agent.

The tip 9 is made in the form of a replaceable screw head. Depending on the nature, condition and content of deposits in the cavity, an appropriate tip can be installed on the inner surface of the pipeline. The shaft 8 is installed in the bearing 15 and the sleeve 16.

To perform work on cleaning the internal cavity of the pipeline, the device is connected with a fitting 13 to the supply hose of a working agent, for example, water.

The device has the following disadvantages:

- jet nozzles are located in front of the device in the housing. Therefore, when a device passes a fault in the wall

the pipeline under the influence of reactive traction created by a tearing agent from the nozzles of the housing, the device goes through a fault into the ground;

- the tip, which destroys deposits in the pipeline, rotates in front of the reaction chamber, causing rapid abrasive wear of the reaction chamber;

- when operating at high pressures above 25 atm, the water stream feeds forward and wedges the shaft;

- the device is complicated by the presence of reactive, pressure turbine chambers.

These shortcomings do not allow to achieve a technical result created by the proposed utility model.

A known device, see patent R.F. for utility model “Device for cleaning the internal cavity of the pipeline” No. 53943 was published on June 10, 2006.

Bull. No. 16.

The device consists of the following components and parts: housing 1, jet nozzles 2, holes 3 in housing 1, turbine 4, connecting bolt 5, sleeve 6, shaft 7, blades 9, protective casing 10, holes 11 in the casing, pipe 12 on the turbine , fitting 14, cutting unit.

The housing 1 contains a cavity 15 for the working agent and a sleeve 6 on which a turbine 4 is mounted.

The device lacks a reactive, turbine and pressure chamber, existing in the counterparts of the patents for PM R.F. No. 43,201 pos. 2, 4, 12, No. 46687 pos. 2, 4,12.

The holes 3 are inclined at an angle α to an imaginary plane passing through a horizontal center line, see section AA.

The blades 9 are conventionally not shown.

The turbine 4 is fixed on the end of the housing 1 with a bolt 5.

The bolt 5 and the sleeve 12 have a left-hand thread, therefore, during operation, the bolt 5 and the shaft 7 screwed onto the sleeve 12 are not unscrewed.

This device is taken as the closest analogue (prototype).

The prototype has the following disadvantages:

- along the length it cannot pass the bends of the cleaned pipeline of small diameter and is used only on straight sections of pipelines;

- when working in pipelines clogged with rags, threads, thin roots, they are wound on a cutting unit, which reduces performance, productivity;

- when working in pipelines completely clogged with enveloping fractions, such as clay, or in pipelines completely clogged with loose condensed fractions, the convex parts of the turbine 4 prevents the device from moving through the pipeline.

These disadvantages of the prototype do not allow to achieve a technical result created by the proposed utility model.

The objective and technical result of the utility model associated with the essential features is the following: increase productivity, expand the technological capabilities of the device, increase reliability, durability, performance.

Creating a compact design that improves productivity, which includes cutting edges on the tip of the cup (option 1), on the cup itself and the front of the turbine (option 2), the cavity in which the blades equipped with knives are located is made open (option 3). This has been achieved by new technical solutions that are in a causal relationship with the technical result.

The essence of the claimed utility model is expressed in the aggregate of the following essential features.

In the already known device for cleaning the internal cavity of the pipeline containing a turbine with a nozzle and blades placed in the cavity of the housing containing jet nozzles and openings for outlet under pressure of the working agent on the turbine blades and also a cutting unit, the following signs are distinguishing from the prototype:

According to option 1.

- The specified cutting unit is made in the form of a screw on the nozzle of the turbine glass containing a tip with cutting edges.

According to option 2.

- The specified cutting unit is made in the form of a screw containing a knife screwed onto the turbine nozzle, while the turbine also contains cutting knives mounted on its front part.

According to option 3.

- The specified cutting unit is made in the form of knives mounted on the blades of the turbine.

The cavity with blades is made open with the possibility of interaction of the blades with knives with removable fractions.

The above set of essential features in comparison with the prior art allows us to conclude that the solution meets the criterion of "novelty."

Figure 1 - the proposed device in the context, option 1.

Figure 2 - the proposed device in the context, option 2.

Figure 3 - the proposed device in the context, option 3.

Figure 4 is a section along aa.

The proposed device consists of the following main components and parts: housing 1, jet nozzles 2, holes 3 in the housing 1, turbine 4, connecting bolt 5, sleeve 6, blades 9, protective casing 10, holes 11 in the casing, pipe 12 on the turbine, fitting 14.

The housing 1 contains a cavity 15 for the working agent, the turbine 4 is mounted on the sleeve 6.

In the proposed device there are no reactive, turbine and pressure chambers existing in the analogues of the patents for PM R.F., No. 43201 pos. 2, 4, 13, No. 46687 pos. 2, 4, 12, this explains the simplification of the design as a technical result of the proposed utility model.

The holes 3 are inclined at an angle α to an imaginary plane passing through a horizontal center line, see section AA.

The blades 9 are conventionally not shown.

The turbine 4 is fixed on the end of the housing 1 with a bolt 5.

The bolt 5 and the sleeve 12 have a left-hand thread, therefore, during operation, the bolt 5 and the shaft 7 screwed onto the sleeve 12 are not unscrewed. (option 3)

According to option 1, FIG.

The cutting unit includes

a tip 8 with cutting edges 13, which is mounted on the glass 20. The glass is screwed onto the nozzle 12 of the turbine 4. This allows to achieve a technical result consisting in the creation of a compact device that can be used both on straight sections of the pipeline and on the bends of the pipeline with a small diameter.

According to option 2, FIG.

The cutting unit includes knives 16 mounted on the nozzle 20, as well as knives 17 mounted on the front part 22 of the turbine 4. The nozzle is screwed onto the nozzle 12 of the turbine.

This allows you to achieve a technical result, which consists in creating a compact device and increase productivity.

According to option 3, Fig. 3.

The cutting unit includes knives 18, mounted on the blades 9 of the turbine 4 and also the tip 8 with cutting edges 13 screwed onto the shaft 7.

The shaft 7 is mounted on the glass 20. The cavity 21 with the blades 9 is made open with the possibility of interaction of the blades with knives with removable fractions.

The working agent (water, air, steam, etc.) under pressure from the nozzle enters the cavity 15 of the housing 1, through the holes 3 it enters the blades 9 of the turbine 4, causing the glass 20 to rotate.

Further, flowing out through the jet nozzle 2, the working agent creates a jet thrust and propels the device forward.

The device develops the required number of revolutions at low pressures, this proclaims the expansion of the technological functions of the device as a technical result, since it can perform the necessary work both at low pressure from 10 atm and high pressure of working agent from 150 to 200 atm.

According to option 1.

At a high speed of rotation of the cutting unit, the device acquires centrifugal force and moves in a spiral. The rotating unit separates hard and dense deposits with its cutting knives, and the working agent flowing out with greater speed and high pressure from the jet nozzles erodes the destroyed deposits, which are driven away by jet streams and transported through the pipe being cleaned. The claimed device

there is only one sleeve 6 on which the turbine rotates. This explains the increase in durability as a technical result.

In the inventive device, the rotation of the turbine 4 occurs due to the impact of water jets from the holes 3 on the blades 9 inside the casing 10 with free low-pressure exit through the openings 11 of the protective casing 10. The outgoing stream creates a water "pillow" around the advancing device, preventing particles from being removed from being cleaned clogging pipes inside the casing.

According to option 2.

When the device is taken as a prototype in pipelines completely clogged with enveloping fractions, for example, clay or in pipelines completely clogged with loose condensed fractions, the convex front part 22 of the turbine prevents the device from moving through the pipeline.

The proposed device with knives 16 mounted on the glass 20, as well as knives 17 mounted on the front of the turbine 22, effectively destroys and discards loosened deposits, which increases the efficiency of the claimed device.

It eliminates sticking, enveloping and winding rags and roots, contributes to faster promotion of the claimed device in the pipeline, which achieves a technical result consisting in increasing productivity.

According to option 3.

To clean pipelines completely overgrown with roots, use the proposed device without a protective casing 10 with an open cavity 21.

When the turbine 4 rotates, blades 9 with knives 18 will chop off the chalky dense roots sprouted into the cavity of the pipeline, which contributes to the rapid cleaning of the pipeline and the advancement of the device. The proposed device extends the range of applications and improves performance as a technical result.

If the pipeline is clogged with sand or other loose fractions, then use the device without a casing and without knives. The thread on the case, if the casing 10 is removed, is protected by a ring 19.

During the operation of similar devices when the pipeline breaks, the working agent jets breaking out of the jet nozzles 3 fall into the fault. The jets of water from the jet nozzles from the opposite side of the fault pushing from the pipeline throw the device into a fault in the pipeline, after which the device goes into the ground.

The claimed device, since the reactive holes 2 are located behind the housing 1, when the jet of water flows into the fault, the device is not thrown into the fault, as this is prevented by the fault 1.

This explains the achievement by the claimed device of a technical result consisting in increasing reliability, durability, expanding technological capabilities.

Compared with similar devices for cleaning pipelines, the claimed device does not have "capricious" spools with their reversibility for the reciprocating movement of the working tip, with the need to remove it from the "dead" position and the associated loss of power.

The claimed device can be used for cleaning underground and surface sewers and other piping systems for cleaning pipes from soot, scale and other deposits. The device is especially effective for cleaning heavily clogged, unused and overgrown sewers for a long time.

On the claimed device made working drawings, manufactured and tested prototype. Tests have shown high efficiency in cleaning long-term inactive sewer pipelines. The shaft speed at the previous consumption of the working agent, as well as productivity increased by 25-30%.

The device operates in a wide pressure range from 10 to 200 atm.

Claims (3)

1. A device for cleaning the internal cavity of the pipeline containing a turbine with a nozzle and blades placed in the cavity of the housing containing the jet nozzles and openings for outlet under pressure of the working agent on the turbine blades, as well as a cutting unit, characterized in that said cutting unit is made in in the form of a screw screwed onto a turbine nozzle containing a tip with cutting edges. 2. A device for cleaning the internal cavity of the pipeline containing a turbine with a nozzle, as well as blades placed in the cavity of the housing containing the jet nozzles and openings for outlet under pressure of the working agent on the turbine blades, as well as a cutting unit, characterized in that said cutting unit made in the form of a screw containing knives screwed onto the turbine nozzle, while the turbine also contains knives fixed to its front. 3. A device for cleaning the internal cavity of the pipeline containing a turbine with a nozzle, as well as blades placed in the cavity of the housing containing the jet nozzles and openings for outlet under pressure of the working agent on the turbine blades, as well as a cutting unit, characterized in that said cutting unit contains blades mounted on the blades of the turbine, while the cavity with blades is made open with the possibility of interaction of the blades with knives with removable fractions.