RU1813U1 - PIPE SURFACE COATING DEVICE - Google Patents

Abstract

1. A device for fixing the coating of the pipe surface, containing a mechanism for supplying a pipe, a rotator and an induction heater, characterized in that the heater is made in the form of a controlled linear inductor with a length of at least the length of the pipe and located on the lifting and lowering mechanism with a gap along the generatrix of the pipe. 2 . The device according to claim 1, characterized in that the controllable linear inductor comprises a non-contact pipe temperature control system. The device according to claim 1 and 2, characterized in that at least three pairs of roller bearings are fixed at the edges and in the center of the surface of the inductor facing the pipe, the axis of rotation of which coincides with the generatrix of the pipe.

Description

 A / 0V (

B05 C 9/14, B05DZ / 02

DEVICE for iHiCCAIpH TUBE SURFACE COVERINGS

The alleged invention relates to methods for coating the exterior; and internal surfaces of pipes used in various industries. ,.

The prototype of the invention is a device for coating the surface of the pipes, containing a mechanism for feeding the pipe, a rotator and an induction heater - see fPF patent No. 2052314, V05D 7 / 22.1972g.

When using this device, the effect of uneven heating occurs due to the fact that the induction heater is made in the form of a coil moving along the pipe. This results in poor coverage. The second disadvantage of using the induction coil in the known device is the impossibility of creating the necessary heating pattern. This may also result in uneven coverage.

In connection with these shortcomings, the technical result manifested in the case of application of the claimed technical solution is to obtain a uniform, high-quality coating of the surface of the insulated pipe.

This goal is achieved by the fact that in the device for fixing the coating of the surface of the pipe containing a mechanism for feeding the pipe, a rotator and an induction heater, the latter is made in the form of a controlled linear inductor with a length not less than the length of the pipe and located on the lifting and lowering mechanism with a gap along the generatrix pipes.

In addition, the controlled linear inductor contains a non-contact pipe temperature control system.

To provide clearance between the inductor and the pipe, along the edges and in the center

.

at least three surfaces of the inductor facing the pipe

pairs of roller bearings, the axis of rotation of which coincides with the generatrix of the pipe. ;

fia drawing shows a design diagram of a device for fixing coating.

The device comprises a mechanism I for supplying a pipe 2, which is a conveyor. The conveyor sections are fed to a rotator -3, which can be made according to any known design, it can consist, for example, of horizontal frames assembled with gearboxes, on the input shafts of which the drives are mounted, and the output shafts are mounted on rollers. It is made from electric motors through a reducer. Heater, made in the form of a controlled linear inductor 4,

|} is located above pipe 2 and has a system for contactless control of the temperature of the pipe; in this case, the transmitter 4 has a length equal to the length of pipe 1, which is facilitated by the creation of the necessary heating modes. The inductor 4 is a copper profiled tube placed along the axis of the pipe. Plates of transformer iron are packed on top of this tube. The inductor is made of several sections, since an increase in the diameter and length of the heated pipes requires an increase in the power of the engineer. Using various schemes of including sections, they obtain the necessary power,

Installation of the inductor 4 along the pipe 2 is carried out using the mechanism of raising and lowering, the principle of which is reduced to an eccentric rocker mechanism. It is known that this mechanism contains shafts, gear couplings, hinges, a connecting rod, levers and a drive with a brake.

Between the pipe 2 and the inductor 4, a gap is required, which is provided by pairs of roller bearings 7, fixed at the edges and in the center of the surface of the inductor 4. The axis of rotation of the roller bearings 7 coincides with the generatrix of the pipe 2, These pairs can be three or more, depending on the length pipes.

The operation of the device is as follows: pipe 2 coated with a coating on its inner or outer surface, but not yet cured, is fed to the rotator 3 using the mechanism I, installed under the inductor 4 and begin to rotate at a given speed. The inductor 4 is lowered onto the pipe 2 and turned on, fixing the coating by heating according to a given sequence diagram. The process cycle is controlled by a non-contact temperature control system. After that, the inductor 4 is turned off, raised to a distance necessary for the free movement of the heated pipe, which one is removed and another is fed in its place. The process is then repeated.

Thus, the indicated means achieves the effect of obtaining a uniform, high-quality coating of the outer and inner surfaces of the pipes. Head patent laboratory

Claims (3)

1. A device for fixing the coating of the surface of the pipe, containing a mechanism for supplying a pipe, a rotator and an induction heater, characterized in that the heater is made in the form of a controlled linear inductor with a length of at least the length of the pipe and located on the lifting and lowering mechanism with a gap along the generatrix of the pipe.  2. The device according to claim 1, characterized in that the controlled linear inductor comprises a non-contact control system for the temperature of the pipe.  3. The device according to claim 1 and 2, characterized in that at least three pairs of roller bearings are fixed at the edges and in the center of the surface of the inductor facing the pipe, the axis of rotation of which coincides with the generatrix of the pipe.