RU2407935C1 - Rubber collar - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: rubber collar consists of various interconnected cylinder sections with specified dimensions. From one side of the collar there is made one cylinder section designed for fixing a bridge on a case (cover). From the back side of the collar there are made two or more cylinder sections each separately designed for attachment to main bridge. The cylinder section of the rubber collar for the case (cover) is connected to a goffer by means of a bridge in turn connected with the cylinder section for the pipeline of bigger diametre relative to diameters of the following cylinder sections made on the back side of the collar. Cylinder sections of the rubber collar are interconnected with a radius bridge in form of steps from the cylinder section of the bigger diametre to a smaller one with diametres diminishing to centre. Cylinder sections for pipelines with specified diametres are divided with shoulders one from another along the end part and along external diametre; shoulders correspond to a cut line. When it is necessary to choose a cylinder section of one required diamerte of the collar for a pipeline out of two or four the rest of them - one or more cylinder sections are removed by cutting them along the cut line. Here is disclosed procedure of fabrication and assembly of the collar on the pipeline.

EFFECT: increased reliability of coupling and expanded functionality.

2 cl, 5 dwg

Description

The invention relates to the field of pipeline transport and can be used to seal the annular space of the transition of the main pipeline in the casing (case), laid under water barriers, engineering structures, roads and railways.

During the construction of the pipeline transition, it becomes necessary to use rubber cuffs to seal the annular space of the transition. In the existing rubber cuff, two cylindrical sections are made: one for the casing (case), the second for the main pipeline. Only one transition combination can be sealed with one sleeve. In addition, most of the produced cuffs are made on mandrels and do not have corrugations, as a result of which the cuff slides from the casing (case) during operation, the annulus sealing is broken and the transition is destroyed.

Currently, there are more than 50 transition combinations with the ratio of one diameter of the casing (case) to several diameters of pipelines, i.e. in one casing (case) is laid, each separately, from two or more trunk pipelines.

For example: in a casing (case) with a diameter of 325 mm, you can lay, individually, three pipelines with a diameter of 159 mm, or 108 mm, or 57 mm.

For each combination of pipeline transition with a casing (case) with a diameter of 325 mm, three rubber cuffs are required to seal the annular space of the transition: 325 × 159 mm, 325 × 108 mm, 325 × 57 mm, where a cylindrical section with a diameter of 325 mm is intended for the casing (case) and cylindrical sections with a diameter of 159 mm, 108 mm, 57 mm are intended, each separately, for the main pipeline of the transition.

Thus, many combinations are created that are currently used in the construction of pipeline crossings under roads and railways.

Such a large number of combinations for pipeline transitions creates difficulties in terms of increasing the number of rubber cuffs of various diameters to seal the annular space of the transitions, and this, in turn, increases the cost of their manufacture and increases storage and production facilities. To reduce these costs, it is necessary to develop a rubber sleeve that can seal the annular space of the transition of the pipeline from two or more combinations, with the ratio of one cylindrical section for the casing (case) to several individually cylindrical sections for the main pipelines.

The well-known "Rubber cuff, the method of its manufacture and method of assembly on the transition pipeline", patent No. 2351828. This rubber cuff is made with corrugation, made by molding in a mold.

The disadvantage of the invention is that with one sleeve only one of the combinations of pipeline transitions can be sealed, for example 325/114 mm, where 325 mm is the diameter of the casing (case), and 114 mm is the diameter of the main pipeline.

Known cuff according to patent RU No. 2261388, IPC F16L 3/00 6 H02G 3/22, where a conical section is made connecting two cylindrical sections of different diameters (taken as a prototype). On the cone section, a tap was made to pass the protective pipe for communication cables.

The disadvantages of the rubber cuff for this technical solution is that only one transition combination is sealed with one cuff, as well as the absence of corrugation. During operation of the transition, the cuff without corrugation slides from the casing (case), as a result of which moisture enters the annulus of the transition and destroys it.

The objective of the invention is to develop a rubber cuff, which can be used to seal the annular space of transitions with combinations of two or more with the ratio of one cylindrical section for the casing (case) to several separately cylindrical sections for pipelines. In addition, the rubber cuff must be made with corrugation, which is connected through a radius jumper with two or more cylindrical sections, each individually designed to be fixed on the main pipelines when sealing the annulus of the transition.

The task is achieved by performing on a rubber cuff several cylindrical sections for pipelines of given diameters. On one side of the cuff is made one cylindrical section with a given diameter, for example 114-1720 mm, which is designed to be fixed on the casing (case) of the transition. On the reverse side of the cuff, two or more cylindrical sections are made, each of which is individually designed to be fixed on the main pipeline of the transition, for example, with a diameter of 57-1420 mm.

The cylindrical section of the rubber cuff for the casing (case) is connected to the corrugation, which, in turn, is connected by a jumper with a cylindrical section for the pipeline with a large diameter in relation to the diameters of the following cylindrical sections, which are made on the back side of the cuff. The cylindrical sections on the back of the cuff are designed to be fixed individually to the trunk pipelines of the transition.

The connection of the cylindrical sections of the rubber cuff with each other is made by a radius jumper in the form of steps from a larger diameter of the cylindrical section to a smaller one, in decreasing dimensions to the center.

Cylindrical sections for pipelines with given diameters are divided by flanges along the outer perimeter, on the back side of the cuff from each other along the end part, the flanges act as a cut line. When choosing a cylindrical section in a cuff for a pipeline of one required diameter, from two or from four, the rest - one or more cylindrical sections are removed by cutting them along the shoulder line.

In addition, the cylindrical sections for pipelines on the back of the cuff are not removed if a predetermined first, smallest diameter is used with respect to the remaining cylindrical sections.

The essence of the device of the rubber cuff is that in the rubber cuff is made of two or more cylindrical sections with predetermined diameters. On one side of the rubber cuff, one cylindrical section is made with a predetermined diameter of 114-1720 mm, which is intended to be fixed on the casing (case) of the transition.

The cylindrical section for the casing (case) is connected to the corrugation, which, in turn, is connected to the cylindrical section made on the back side of the cuff, and is intended for a pipeline of a larger diameter with respect to the given diameters of the following cylindrical sections. Cylindrical sections, made on the back side of the cuff, are designed to be fixed on trunk pipelines with a diameter of 57-1420 mm, each individually.

The connection of the cylindrical sections of the rubber cuff with each other is made by a jumper in the form of steps from a larger diameter to a smaller diameter in decreasing dimensions to the center.

The cylindrical sections for the pipeline on the reverse side of the cuff are separated from each other by flanges along the outer perimeter, along the end part, the flanges act as a cut line. When the final selection of one of two or more necessary cylindrical sections for the pipeline, excluding the cylindrical section for the casing (case), the rest - one or more - are removed by cutting the cylindrical sections along the shoulder line.

Cutting of unused cylindrical sections for the pipeline is carried out at the final selection of the required cylindrical section with its subsequent fixing on the main pipeline during assembly.

In addition, the cylindrical portions of the cuff are not removed if the first smallest diameter is used with respect to the remaining cylindrical portions that are formed on the back of the cuff. One cuff can seal one of two or more combinations.

The essence of the method of manufacturing a rubber cuff for sealing the transition of the pipeline with two or more combinations is as follows. The rubber cuff is assembled with the corrugation in the mold, which contains from two or more cylindrical sections with predetermined diameters. On one side of the rubber cuff, one cylindrical section is made with a predetermined diameter, for example 325 mm, which is intended to be fixed on the transition casing (case).

The cylindrical section for the casing (case) in the rubber cuff is performed with a corrugation, which, in turn, is connected to a cylindrical section, for example, 159 mm in diameter, larger in relation to the following cylindrical sections for a pipe with a diameter of 108 mm, 57 mm, made from the reverse sides of the cuff, which are designed to be fixed on the main pipelines individually.

After loading, the mold is installed in a vulcanization press and vulcanized for 30-40 minutes at a temperature of 120-140 ° C.

After the vulcanization time has elapsed, the mold is unloaded from the vulcanization press, cooled and the cuff made with corrugation, dimensions 325 × 159, is removed; 325 × 108; 325 × 57. On one side of the rubber cuff, one cylindrical section with a predetermined diameter of 325 mm is made, which is intended to be fixed on the casing (case) of the transition. On the reverse side of the rubber cuff, cylindrical sections for a pipeline with predetermined diameters of 159, 108, 57 mm are made, which are interconnected by jumpers in the form of steps, decreasing in size to the center, cylindrical sections are designed for one selected diameter of the transition main pipeline. On the end of the cylindrical sections along the outer perimeter, collars are made that act as a cut line.

One cuff with cylindrical sections with a diameter of 325 × 159 mm, 325 × 108 mm, 325 × 57 mm can be used to seal the annulus of the pipeline transition separately by three combinations, for example: the first 325 × 159 mm, the second 325 × 108 mm, the third 325 × 57 mm . In one cuff, two or more combinations of cylindrical sections for the pipeline are performed, which will always be in demand two or more times more often than the cuff, which has one cylindrical section for the casing (case) and one cylindrical section for the pipeline. At the final choice of a combination with a cylindrical section for a casing (case) with a diameter of 325 mm and a cylindrical section for a pipeline with a diameter of 159 mm, the remaining cylindrical sections are removed.

Similarly, more combinations are made with diameters for the casing (case) 114-1720 mm for trunk pipelines of the transition 57-1420 mm.

The essence of the method of assembling a rubber cuff on the transition pipeline is as follows: for example, a rubber cuff with a cylindrical section for a casing (case) of 325 mm diameter for a trunk pipeline with a diameter of 108 mm is required, take a rubber cuff made with a cylindrical section for a casing (case) of 325 mm s a combination of cylindrical sections for a pipeline with a diameter of 57, 108, 159 mm for the main pipeline. In the cuff, choose a cylindrical section for the casing (case) with a diameter of 325 mm, for the main pipeline a cylindrical section with a diameter of 108 mm, after which the rubber cuff is placed vertically on the cylindrical section of the casing (case) and cut the cylindrical section for the pipe with a diameter of 57 mm along the rim edge, freeing passage to a cylindrical section for a pipeline with a diameter of 108 mm. After that, the annulus of the transition is sealed with a cuff by installing a cylindrical section with a diameter of 325 mm on the casing (case), and a cylindrical section with a diameter of 108 mm on the main pipeline and secured with clamps on both sides.

When using a cylindrical section with a diameter of 159 mm for the main pipeline, the cuff is also installed vertically and cylindrical sections for the pipeline with diameters of 57 and 108 mm are cut along the edge of the protruding shoulder, freeing the passage to the cylindrical section with a diameter of 159 mm of the rubber cuff.

When using a cylindrical section with a diameter of 57 mm for the main pipeline, the cylindrical sections are not cut.

Three rubber combinations can be sealed with one rubber cuff in one casing (case), which will make it possible to produce rubber cuffs for future use, which will always be in demand. In addition, fewer rubber cuffs and storage facilities will be required, and this will give a significant economic effect for small and medium-sized businesses.

The invention is illustrated by drawings, where:

- figure 1 shows the cuffs, sealing the casing (case) and the main pipeline;

- figure 2 is a section of the cuff, planted on the main pipeline and conditionally on the casing (case);

- figure 3 - cuff in a perspective view;

- figure 4 - cuff with a remote seat for passage to the next landing diameter of the pipeline;

- figure 5 - cuff with removed two seats for passage of the pipeline to the next bore diameter.

In the claimed rubber cuff 1 (figure 1, 2, 3, 4, 5) is made from two or more cylindrical sections with predetermined diameters. On one side of the rubber sleeve there is one cylindrical section 2 (Fig. 2, 3, 4, 5) with a predetermined diameter of 114-1720 mm, which is designed to be fixed on the casing (case) 3 (Fig. 1, 2) of the pipeline transition. On the reverse side, the cuffs are made from two or more cylindrical sections with predetermined diameters, designed to be fixed on the main pipeline of the transition, with a diameter of 57-1420 mm.

The cylindrical section 2 (Fig. 2, 3, 4, 5) for the casing (case) 3 (Fig. 1, 2) is connected to the corrugation 4 (Fig. 2), which, in turn, is connected to the cylindrical section 5 (Fig. .2, 3, 4, 5) made on the back side of the cuff of a larger diameter with respect to the given diameters of the following cylindrical sections 6, 7 (Figs. 2, 3, 4, 5). Cylindrical sections 5, 6, 7 (Figs. 2, 3, 4, 5), made on the back side of the cuff, are intended for fastening to the main pipelines 8 (Figs. 1, 2) with a diameter of 57-1420 mm, each separately.

The connection of the cylindrical sections 5, 6, 7 (Figs. 2, 3, 4, 5) of the rubber cuff on the back side with each other is made by jumpers 9 (Figs. 2, 3) in the form of steps from a larger diameter to a smaller diameter in decreasing sizes to to the center.

The cylindrical sections 5, 6, 7 (Fig. 2, 3, 4, 5) for the pipeline on the back side of the cuff are separated from each other by collars 10 (Fig. 2, 3, 4, 5) along the outer perimeter, along the end part, of the collar serve as a cut line. When the final selection of one of two or more necessary cylindrical sections for the pipeline, excluding the cylindrical section 2 (Fig. 2, 3, 4, 5) for the casing (case), the remaining one or more are removed by cutting the cylindrical sections along the shoulder 10 (figure 2, 3, 4, 5).

Cutting of unused cylindrical sections for the pipeline is carried out with the final selection of the required cylindrical section with its subsequent fixing on the main pipeline 8 (Fig. 1, 2) of the transition during assembly of the cuff 1 (Fig. 1, 2, 3, 4, 5).

In addition, the cylindrical sections 5, 6, 7 (figure 2, 3, 4, 5) of the cuff 1 (figure 1, 2, 3, 4, 5) are not removed if you use the first smallest diameter 7 (figure 2 , 3, 4, 5) with respect to the remaining cylindrical sections, which are made on the back side of the cuff. One cuff can be sealed against two or more combinations of pipeline crossings. The described cuff 1 (FIGS. 1, 2, 3, 4, 5) works in the same way as a regular rubber cuff works in such cases.

A method of manufacturing a rubber sleeve 1 (figure 1, 2, 3, 4, 5) for sealing the annular space of the transition of the pipeline with two or more combinations is as follows. The rubber sleeve 1 (FIGS. 1, 2, 3, 4, 5) is assembled with corrugation 4 (FIG. 2) in a mold that contains from two or more cylindrical sections with predetermined diameters. On one side of the rubber cuff, one cylindrical section 2 (FIGS. 2, 3, 4, 5) is made with a predetermined diameter, for example 325 mm, which is intended to be fixed on the casing (case) 3 (FIGS. 1, 2) of the pipeline transition.

The cylindrical section 2 (Fig. 2, 3, 4, 5) for the casing (case) in the rubber cuff is performed with corrugation 4 (Fig. 2), which, in turn, is connected to the cylindrical section 5 (Fig. 2, 3, 4, 5), for example, with a diameter of 159 mm, larger in relation to the following cylindrical sections 6, 7 (Figs. 2, 3, 4, 5) for a pipeline with a diameter, for example, 108, 57 mm, made on the back side of the cuff, which are intended for fixing on the main pipelines each separately.

After loading, the mold is installed in a vulcanization press and vulcanized for 30-40 minutes at a temperature of 120-140 ° C.

After the vulcanization time has passed, the mold is unloaded from the vulcanization press, cooled and the cuff made with corrugation, dimensions 325 × 159, is removed; 325 × 108; 325 × 57. On one side of the rubber sleeve 1 (Figs. 1, 2, 3, 4, 5), one cylindrical section 2 (Figs. 2, 3, 4, 5) is made with a predetermined diameter of 325 mm, designed to be fixed on the casing (case) 3 (figure 1, 2). On the reverse side of the rubber cuff, cylindrical sections 5, 6, 7 (Figs. 2, 3, 4, 5) are made for a pipeline with predetermined diameters of 159, 108, 57 mm, which are interconnected by jumpers 9 (Fig. 2) in the form of steps , decreasing in size to the center, the cylindrical sections 5, 6, 7 (figure 2, 3, 4, 5) are designed for one selected diameter of the main pipeline transition. On the end part of the cylindrical sections 5, 6, 7 (FIGS. 2, 3,4, 5), beads 10 (FIGS. 2, 3, 4, 5) are made along the outer perimeter, which serve as the cut line.

One cuff 1 (figure 1, 2, 3, 4, 5) with cylindrical sections 2, 5 (figure 2, 3, 4, 5) with a diameter of 325 × 159, as well as with cylindrical sections 2, 6 (figure 2 , 3, 4, 5) with a diameter of 325 × 108 and cylindrical sections 2, 7 (Figs. 2, 3, 4, 5) with a diameter of 325 × 57, it is possible to seal the annulus of the pipeline transition separately by three combinations, for example: the first 325 × 159, the second is 325 × 108, the third is 325 × 57. In one cuff 1 (Figs. 1, 2, 3, 4, 5), two or more combinations of cylindrical sections for the pipeline are performed, which will always be in demand two or more times more often than a cuff that has one cylindrical section for the casing ( case) and one cylindrical section for the pipeline. At the final choice of combination with a cylindrical section 2 (Fig. 2, 3, 4, 5) for a casing (case) with a diameter of 325 mm and a cylindrical section 5 (Fig. 2, 3, 4, 5) for a pipeline with a diameter of 159 mm, the rest are cylindrical sections are deleted.

Similarly, more combinations are made with diameters for the casing (case) 114-1720 mm, for trunk pipelines of the transition 57-1420 mm.

A method of assembling a rubber sleeve 1 (FIGS. 1, 2, 3, 4, 5) on a transition pipe is as follows: for example, a rubber sleeve with a cylindrical section for a casing (case) with a diameter of 325 mm is required for a trunk pipeline with a diameter of 108 mm. Based on these conditions, take made rubber cuff 1 (figure 1, 2, 3, 4, 5) with a cylindrical section 2 (figure 2, 3, 4, 5) for the casing (case) with a diameter of 325 mm with a combination of cylindrical sections 5, 6, 7 (Figs. 2, 3, 4, 5) with a diameter of 57, 108, 159 mm for the main pipeline. In the cuff 1 (figure 1, 2, 3, 4, 5) choose a cylindrical section for the casing (case) with a diameter of 325 mm, for the main pipeline - a cylindrical section 6 (2, 3, 4, 5) with a diameter of 108 mm, then the rubber cuff is placed vertically on the cylindrical section 2 (Fig. 2, 3, 4, 5) of the casing (case) or in another convenient position and cut off the cylindrical section 7 (Fig. 2, 3, 4, 5) with a diameter of 57 mm the edge of the shoulder 10 (Fig.2, 3, 4, 5), freeing the passage to the cylindrical section 6 (Fig.2, 3, 4, 5) for a pipeline with a diameter of 108 mm After that, the cuff 1 (Fig. 1, 2, 3, 4, 5) seals the annulus of the transition by installing a cylindrical section 2 (Fig. 2, 3, 4, 5) with a diameter of 325 mm on the casing (case) 3 (Fig. 1 , 2), and the cylindrical section 6 (Fig. 2, 3, 4, 5) with a diameter of 108 mm is placed on the main pipeline 8 (Fig. 1, 2) and is fixed on both sides with cable ties 11, 12 (Fig. 1, 2). The main pipeline 8 (figure 1, 2), dragged inside the casing (case) 3 (figure 1, 2), moves on the supporting guide rings 13 (figure 1).

When using a rubber cuff 1 (figure 1, 2, 3, 4, 5) with a cylindrical section 5 (figure 2, 3, 4, 5) with a diameter of 159 mm for the main pipeline and a diameter of 325 mm for the casing (case) of it so but set vertically or in another convenient position and along the edge of the protruding shoulder 10 (Fig.2, 3, 4, 5) cut off unused cylindrical sections 6, 7 (Fig.2, 3, 4, 5) with diameters of 57 and 108 mm, freeing the passage to the cylindrical 5 (Fig.2, 3, 4, 5) section with a diameter of 159 mm of a rubber cuff.

When using a cylindrical section 7 (figure 2, 3, 4, 5) with a diameter of 57 mm for the main pipeline 8 (figure 1, 2), the cylindrical sections 5, 6, 7 (figure 2, 3, 4, 5) are not cut .

For the main pipeline 8 (Figs. 1, 2) with a diameter of 57, 108, 159 mm and with a cylindrical section of 325 mm for the casing (case), it is possible to seal the annular space of the pipeline transition with three combinations separately with one sleeve, for example, the first - 325 × 159 mm, the second is 325 × 108 mm, the third is 325 × 57 mm. One cuff performs from two or more combinations of cylindrical sections for the pipeline, which will always be in demand two or more times more often than the cuff, which has one cylindrical section for the casing (case) and one cylindrical section for the pipeline.

In a similar manner, the rubber cuff is assembled on the transition pipeline with a large number of combinations of casing diameters (case) 114-1720 mm and trunk pipelines diameters 57-1420 mm.

Claims (2)

1. Rubber cuff for sealing the annular space in the passage under the engineering structures, water barriers, railways and roads, characterized in that it contains from two or more cylindrical sections with predetermined piping diameters, and on one side of the cuff one cylindrical section is made with a given diameter intended for fixing on the casing (case) of the transition, which through the corrugation connected to it on the back of the cuff contains from two or more cylindrical sections with given diameters, decreasing in size to the center and interconnected by jumpers in the form of steps, designed to be fixed on the main pipeline on one of several selected cylindrical sections of the rubber cuff. 2. The rubber cuff according to claim 1, characterized in that the cylindrical sections with predetermined diameters on the reverse side of the cuff are separated from each other at the end by collars that act as the cut line of the cylindrical sections.

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