RU2466802C2 - Device for cleaning of pipelines - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: device for cleaning of pipelines contains a jet-forming cuff, a receiver, a hollow stock and a centraliser. Receiver is formed by jet-forming cuff and toroid-shape cuff located just as the first one on hollow stock, and power rope is attached to the front of the device. Toroid-shape cuff is installed with possibility of moving along the stock.

EFFECT: enhancing the device, reducing flow of working agent and improving efficiency of device operation.

2 cl, 1 dwg

Description

The invention relates to the oil, gas, chemical industry, as well as to the water sector, including utilities. It can be used in other industries.

Specifically, the device is intended for cleaning pipelines from deposits that are formed during the operation of pipelines.

Deposits increase on the inner surface of the pipe and reduce its bore. As a result, the pipeline cannot functionally fulfill its purpose.

It is known that pipelines are divided into pressure and non-pressure. Pressure lines are those pipelines in which the product moves under the action of a pump unit.

Non-pressure ones are those pipelines in which the product moves under the action of gravitational forces. Such pipelines have a slope, and the speed of the product depends on the slope angle. The smaller the slope, the slower the speed of the product and the faster such a pipe overgrows with sediments.

Pressure pipelines are cleaned of deposits using hydrodynamic devices, which are a jet-forming cuff, a rod and a stroke limiter. The jet-forming cuff is a hemisphere assembled from spring strips in two rows in a checkerboard pattern and forming conical grooves, and in conjunction with the pipeline grooves form conical slots. When a water flow is applied to the cuff, the conical slots begin to work as hydraulic monitors, which erode deposits. It often happens that the pump unit cannot provide the necessary water flow and the device stops working. In pressure-free pipelines, pumping units are not provided at all.

Known hydrobarodynamic devices designed for cleaning pressure pipelines (US Pat. RF No. 2055652, CL C1 6 V08V 9/04). The device includes a jet-forming cuff with conical grooves. In the center, the cuff has a channel. In the role of the channel, a pipe is used, at the end of which a stroke limiter is installed. It also acts as a centralizer and prevents the device from turning over.

The disadvantage of this device is that it is impossible to clean the pressure pipe with a small supply of water to the cuff and in general it is impossible to clean the pressureless pipe. A device is known which consumes less water than other devices of a similar purpose (as USSR AS No. 1816522 of 05.23.1993) - a prototype.

The device contains jet-forming cuffs, a hollow rod, a centralizer and a receiver connected with a hollow rod, to which a hose with a working agent is connected at the back.

The disadvantage of this device is that the generated jets of cuffs located behind the head cuff create turbulent flows that interfere with the normal operation of the head cuff. The task of the invention is to increase the efficiency of the device. The technical result is achieved by the fact that the receiver is formed by a jet-forming cuff and a toroidal cuff placed, like the first, on the hollow stem, and a power cable is attached to the device in front. In more detail, the invention will be described below.

In Fig 1. presents a schematic drawing of a hydrobarodynamic cleaning device for both pressure and pressureless pipelines. The device consists of a jet-forming hydrobarodynamic cuff 1 with conical grooves. The cuff 1 is placed on a hollow stem 2, the front of which is plugged with an eyelet 3, to which a power cable 4 is attached, and a hose 5 is connected to the rear of the stem 2. The stem 2 has an opening 6. On the back of the stem 2 is toroidal mounted cuff 7. The device is equipped with a center 8, consisting of spring elements. In FIG. 1 also shows a pipeline 9 and deposits 10.

The device operates as follows.

The device is brought into the pre-cleaned part of the pipeline 9, through which the power cable 4 was previously drawn and fixed to the eye 3. Through the hose 5, water is supplied under pressure 6 through the hole 6, which fills the receiver formed by the cuff 1 and 7 and pipeline 9. The water accelerates in conical grooves, it forms hydrobarodynamic jets that erode deposits 10. Using a cable 4, the device moves along the pipeline 10. The receiver smooths out the pulsation of the water supply and the jets work stably. When the device moves forward, an empty and clean pipe remains behind it. Water consumption is minimal, but sufficient for the formation of jets. The proposed device can clean both pressure and pressureless pipelines, which expands its functionality. The volume of the receiver is regulated by moving the toroidal cuff 7 under the available water flow. And due to the fact that water is not spent on filling the empty cleaned part of the pipe, but spent on the formation of hydrobarodynamic jets that destroy deposits, the kinetic energy of the jets increases, that is, the efficiency of the device increases, which ensures the achievement of a technical result. The invention is industrially applicable. It can be made in the conditions of mechanical workshops.

Claims (2)

1. A device for cleaning pipelines containing a jet-forming sleeve, a receiver, a hollow rod and a centralizer, characterized in that the receiver is formed by a jet-forming sleeve and a toroidal sleeve placed, like the first, on the hollow rod, and a power cable is connected to the device in front. 2. The device according to claim 1, characterized in that the toroidal cuff is mounted for movement along the rod.

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