SU931241A1 - Apparatus for cleaning tube interior surface - Google Patents

Description

(54) DEVICE FOR CLEANING THE INTERNAL PIPE SURFACE

one

The invention relates to devices for cleaning products from various kinds of contaminants, namely, devices for cleaning the inner surface of hollow elements from deposits, and can be used mainly for cleaning solid deposits from the internal surfaces of pipelines during their operation.

A device for cleaning the inner surface of pipelines is known, comprising a cleaning unit having spring-loaded knives placed on levers hingedly connected at one end to the body of the cleaning unit, a spring aligned with the latter, and a system for moving the cleaning device 1.

A disadvantage of the known device is the impossibility of cleaning more powerful deposits on the walls of the cleaned pipelines.

The purpose of the invention is to improve the quality of cleaning.

This goal is achieved by the fact that, in a device for cleaning the inner surface of pipes, a cleaning unit comprising spring loaded knives

on levers that are pivotally connected at one end to the body of the cleaning unit, a spring located coaxially with the latter, and a system for moving the cleaning device, the system for moving has a body,

5 divided by a fixed partition with an opening, a central rod equipped with a guide rest, a movable lid and an additional spring, the main spring being placed on the rod JO not between the guide rest and the partition, additionally between the partition and the movable lid, and each knife of the cleaning unit is connected articulated with the free end of the corresponding lever. FIG. 1 and 2 depict the proposed

 device; in fig. 3 is a view A of FIG. one; in fig. 4 - knife lever; in fig. 5 is a view B in FIG. four; in fig. 6 is a sectional view BB in FIG. four; in fig. 7 - section G-Y in FIG. five.

Claims (2)

20 The device has a housing 1, a fixed partition 2 with an opening 3, a central rod 4 with an opening 5, a guide stop 6, a movable cover 7 with an opening 8, a spring 9, an additional spring 10, adjustable supports 11 consisting of screw 12, crackers 13, axis 14 and pivoting lever 15 with flat spring springs 16, knife arms 17 with axis 18, hollow axis 19 with reflector 20, hole 21 and cheeks 22, knives 23 with working surfaces 24, shanks 25 and jumpers 26, supporting brackets 27, water distributor 28, supply hoses 29 and 30, diaphragms 31 and 32 with a petal E - abutments 33 and large openings 34 and lower 35, intermediate spring 36, a hinge coupling 37, housings 38 and 39 of the diaphragms, the hook 40, which provides the initial installation of the device in the brushing hollow member. The device works as follows. Having installed a calibration ring (not shown) on the knives 23 and rotating the screws 12, turn the swivel levers 15 around the axis 14, turn the springs-flat springs 16, which, pressing onto the support bracket .m 27, transfer the force to the hollow axis 19 and the knives 23 The blade levers 17 self-align by turning around the axis 14. After adjusting the spring-spring screws 16 to the required force, remove the calibration ring, and the hook 40 draws the device into the hollow element. Under pressure, fluid (water) is supplied to diaphragm 32 and through the apertures 34 the cavity between the diaphragms 31 and 32 is filled with liquid. Knives 23 with bridges 26 and support brackets 27, hinged on hollow axis 19, self-align on their inner surface of the hollow element with their workers surfaces 24 and are pressed with a force greater than the strength of the deposits. The shanks 25 serve to guide the knives when moving. The knives 23 have the ability to swing within the gap between the cheeks 22 of the hollow axis 19, which is fixed hingedly to the axis 18 with the knife levers 17. The fluid pressure on the diaphragms 32 and 31 creates a force that moves the diaphragm along the pipe. The created force on the diaphragm overcomes the force of the additional spring 11, shifts the intermediate spring 36, the hinge coupling 37, the movable cover 7, slides along the housing 1, and with them the central rod 4 passing through the opening 3 of the partitions 2. In this case, the additional spring 10 is compressed, the spring 9 is slightly stretched (previously both springs were set pressed in), resting on the sliding stop 6. The additional spring 10 is pressed, pushing away from the bottom of the movable cover 7, acts on the partition 2 and moves the body 1 and, therefore, the knives 23 cutting the deposits. In this case, the spring 9 is compressed and, pushing away from the partition 2, moves the central rod 4 with the hinged coupling 37. This is how the device vibrates and the process repeats again. This phenomenon occurs when the cutting force of the deposits exceeds the force of the additional spring 10. When the cutting force is lower than the force of the spring 10, the vibration does not occur. Water under pressure passes through the holes 34 into the cavity between the diaphragms and through the holes of smaller diameter 35 through the hoses 30 enters the distributor 28 and then through the hoses 29 enters through the hollow axis 19, the hole 21 to the reflector 20 and to the working surfaces 24 of the blades 23, lubricates working surfaces and flushing of cut sediments from the cutting zone, at the same time reducing the resistance of cutting. The presence of two or more diaphragms makes it possible to pass branches without stopping, preventing water overflow in the case of using one diaphragm and stopping the device. The proposed device, in comparison with the known, provides for the cleaning of hollow elements even of a non-circular cross section with deposits of up to 30% of the lumen without deformations of the inner surface and practically without limitation to length without the use of traction devices (cables, etc.). Tests of the device show its operability with a length of sections between the plunger wells up to 10 km, during the cleaning of pipelines, in particular of a 1220 mm water conduit. The frequency of cleaning 1 time in 3 years. The annual economic efficiency from the use of the device is 1 million rubles. The share of the proposed device in the resulting savings of 45 / o. Apparatus of the Invention A device for cleaning the inner surface of pipes, comprising a cleaning unit having spring-loaded knives placed on levers pivotally connected at one end to the body of the cleaning unit, a spring aligned coaxially with the latter, and a system for moving the cleaning device, characterized in in order to improve the quality of cleaning, the system for moving the cleaning unit has a body divided by a fixed partition with an opening m., a central rod equipped with a guide stop, a movable lid additional spring, the primary spring arranged on the rod between the guide focus and the partition wall, the additional - between the partition and the movable kryschkoy and each blade cleaning assembly associated with a respective arm pivotally svobodny.m end. Sources of information taken into account in the examination 1. 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