RU2265768C1 - Movable support of a pipeline - Google Patents

Abstract

FIELD: the invention refers to construction and used at building overhead pipelines.

SUBSTANCE: the movable support has a girth rail fixed on the foundation of the support, a lodgment, hinges with two degrees of freedom and poles with stiffening rings. The support has additionally two beams, two supporting sleeves and four regulation mechanisms. As hinges the heads of the dynamo measuring sensors with spherical supporting surfaces are used and as poles - two cylindrical columns whose upper faces are firmly connected with the foundation of the dynamo measuring sensors, and low faces - with the girth rail. The central parts of the beams are leaning through supporting sleeves on spherical surfaces of the heads of the dynamo measuring sensors, the edges of the beams are connected travellingly and symmetrically relatively to the supporting sleeves with a lodgment with the help of the regulation mechanisms. At changing of the designed height of the support's edge the load on the dynamo measuring sensors changes and correspondently the variable output signal from the sensors which passes through control apparatus and enters the input of the regulation mechanism whose electric engine through a reduction gear rotates the regulation propellers until restoration of the load on the support to standard magnitude corresponding to the designed position of the support.

EFFECT: increases reliability of the pipeline and that is achieved by the way of remote control of the height of the support for conservation of the designed position of the pipeline.

4 cl, 2 dwg

Description

The invention relates to construction and may find application in the construction of self-compensating overhead pipelines.

Known movable support of the pipeline containing the base pile, on which the lodgement of the pipeline is fixed movably through the elastic elements - springs. The support is equipped with a measuring bar with a sight to record the movement of the pile, occurring, for example, as a result of exposure to frost heaving of the soil. (RF patent No. 2124668, CL F 16 L 3/205, 1999).

A disadvantage of the known support is the lack of an electrical output signal about the height position of the pipeline, which does not allow remote monitoring of its height state.

Known movable pipe support containing a bolt secured to the support bases, lodgement, hinges with two degrees of freedom, struts and stiffeners, (AS USSR No. 1099172, class F 16 L 3/16, 1984). This support is taken as a prototype.

In the prototype, due to the presence of hinges, the uniformity of the distribution of the pipeline load on the lodgement increases, which increases the operational reliability of the support.

The disadvantage of the prototype is the lack of an electrical signal about the height position of the pipeline, which does not allow, as in the analogue, to carry out remote monitoring of its design state, as well as insufficiently high stability of the pipeline-support system.

The technical result from the use of the invention is to obtain an electrical signal that carries information about the height position of the pipeline for remote monitoring of its height state and increase the stability of the support.

This technical result is achieved due to the fact that the movable pipe support containing a crossbar fixed on the support bases, a lodgement, hinges with two degrees of freedom and a rack with stiffeners, additionally contains two beams, two support glasses and four adjusting mechanisms, while the heads of load cells with spherical bearing surfaces are used as hinges, and two cylindrical columns, the upper ends of which are rigidly connected to the bases of the load cells, are used as struts sensors, and the lower ones with a crossbar, and the central parts of the beams through the support cups are supported on the spherical surfaces of the heads of the load cells, and the edges of the beams are connected movably and symmetrically with respect to the support cups with the lodgement using adjusting mechanisms.

Adjusting mechanisms can be made in the form of adjusting screws with nuts equipped with protective covers.

Moreover, each adjusting mechanism additionally includes an electric motor with a gearbox, the shaft of which is kinematically connected with the adjusting screw.

Beams can be made in the form of channels.

The invention is illustrated in the drawing, which shows two projections of a movable support.

The movable support of the pipeline 1 contains a crossbar 2, mounted on the bases of the support (not shown in the drawing), two cylindrical columns 3 with stiffeners 4.

There is also a lodgement 5, two beams 6 in the form of channels, two load cells 7 with spherical bearing surfaces 8, two bearing cups 9, two adjusting mechanisms in the form of adjusting screws 10 with nuts 11, which can be equipped with protective covers against aggressive environmental influences (not shown in the drawing).

The upper ends of the cylindrical columns 3 are rigidly connected to the bases of the load cells 7, and the lower ones with the crossbar 2.

The central parts of the beams 6 through the support cups 9 are supported by the spherical heads 8 of the load cells 7 connected by the output through the secondary equipment to the recorder (not shown), and the edges of the beams 6 are connected movably and symmetrically with respect to the support cups 9 with the lodgement 5 using the adjusting screws 10 with nuts 11.

The support may also contain four electric motors with gears (not shown in the drawing), the shafts of which are kinematically connected with the adjusting screws 10.

Movable support works as follows.

When you change the design height of any edge of the support, the power load on the load cells 7 will change, and the differential output signal from the sensors 7 will also change.

The outputs of the sensors 7 through the secondary equipment can be connected to the control input of the adjusting mechanism, which, using an electric motor with a reducer (not shown in the drawing), turns the corresponding adjusting screw 10 until the load on the support is restored to the standard value corresponding to the design height of the support .

In the simplest case, the restoration of the given height of the pipeline 1 is achieved manually after reaching the standard level of the differential signal of the load sensors 7 by adjusting the adjusting screws 10. In this case, the data of the recorder (not shown) are used.

Thus, the presence of force sensors with spherical bearing surfaces allows you to receive an electrical signal about the state of the support and remotely adjust its changed height.

In addition, with this design of the movable support, the potential energy of the system at the design height of the pipeline is minimal, which ensures its stable state.

Claims (5)

1. A movable pipe support containing a crossbar fixed to the support bases, a lodgement, hinges with two degrees of freedom and a rack with stiffeners, characterized in that it additionally contains two beams, two support glasses and four adjusting mechanisms, while the hinges are used heads of load cells with spherical bearing surfaces, and as struts - two cylindrical columns, the upper ends of which are rigidly connected to the bases of the load sensors, and the lower ends with a crossbar, than the central parts of the beams through the support cups rely on the spherical surfaces of the heads of the load cells, and the edges of the beams are connected movably and symmetrically with respect to the support cups with the lodgement using adjusting mechanisms. 2. The movable support according to claim 1, characterized in that the adjusting mechanisms are made in the form of adjusting screws with nuts. 3. The movable support according to claim 2, characterized in that the adjusting screws with nuts are provided with protective covers. 4. The movable support according to claim 2, characterized in that each adjusting mechanism further includes an electric motor with a gearbox, the shaft of which is kinematically connected with the adjusting screw. 5. The movable support according to claim 1, characterized in that the beams are made in the form of channels.