RU37177U1 - SUPPORT AND PROTECTIVE ROLLER DEVICE FOR PIPELINES - Google Patents

Description

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F 16 L 7/00

SUPPORT AND PROTECTIVE ROLLER DEVICE for PIPELINES

The utility model relates to pipeline construction and can be used to protect the outer insulating coating on the pipe whip while dragging it in a protective casing during the construction of crossings under roads and railways, as well as other utilities in various climatic zones.

The prototype of the utility model is a support and protective roller device for pipelines, containing one upper, two lateral and two lower protective elements mounted around the insulation coating of the pipe whip, while the two lower protective elements are placed symmetrically with respect to the vertical axis of the pipe whip and are made in the form of dielectric rollers material - certificate of the Russian Federation for utility model No. 19664, F 16L 57/00, 2001

The disadvantage of the prototype is that in the presence of supports in the form of two rollers and with a large length of the transition, the device can be rotated together with the pipe lash relative to the vertical axis, which creates additional effort when pulling the lash in a protective casing.

In this regard, the technical problem solved by the utility model is the maximum reduction in traction.

This problem is solved so that in the supporting and protective roller device for pipelines, containing one upper, two side and two lower protective elements installed around the pipe insulation coating

.- V

a whip, while the two lower protective elements are placed symmetrically relative to the vertical axis of the tubular whip and are made in the form of rollers of dielectric material, an additional third lower protective element is introduced, also made in the form of a roller and located along the vertical axis of the tubular whip.

The following particular versions of the utility model are proposed:

two lower protective elements are each located at an angle of 45 ° -55 ° relative to the vertical axis of the pipe whip;

-the upper protective element located along the vertical axis of the pipe whip is made in the form of a roller of dielectric material;

- the upper protective element located on the vertical axis of the tubular lash, and the side protective elements located on its horizontal axis, can also be made in the form of blocks of dielectric material; these pads can be spring loaded.

The drawing shows a view of the device.

The supporting and protective roller device for pipelines contains one upper protective element 1, two side protective elements 2, 3 and three lower protective elements 4, 5, 6, mounted around the insulation coating of the pipe whip 7, located in the protective casing 8. There is a gasket 9 between half rings 10, 11, interconnected fixtures 12, 13.

The design of the three lower protective elements 4, 5, 6 consists of brackets 14-16, mounted on the lower half ring 11 with the rollers 17-19 placed in them. Elements 4,5 are each located at an angle of 45 ° -55 ° symmetrically

relative to the vertical axis of the pipe whip 7, element 6 is located on. the vertical axis of the pipe lash.

The rollers 17-19 provide a concentric location of the pipe lash 7 relative to the protective casing 8. This allows the use of simpler devices to seal the ends of the space between the pipe lash 7 and the protective casing 8.

To exclude contact of the semicircles 10,11 with the casing 8 when stocking the pipe whip 7, the protective element 1 available on the semicircle 10 is made in the form of a block of dielectric material. Protective elements 2,3 are also made. In this case, the pads can be spring-loaded. An embodiment of element 1 in the form of a roller is provided.

It should be noted that the utility model can be used in a simplified version, in which two side protective elements 2, 3 may be absent. With this use it is obvious that the two lower protective elements 4,5 must be located each at a maximum angle relative to the vertical axis of the pipe lash, i.e. and 55 °.

Thus, with the help of the proposed design and the specific implementation of support and protective elements, the maximum reduction in traction efforts is achieved when pulling the pipe whip in the protective koyasuha during the construction of crossings under roads and railways.

Claims (5)

1. Support and protective roller device for pipelines, containing one upper, two lateral and two lower protective elements mounted around the insulation coating of the pipe whip, while the two lower protective elements are placed symmetrically with respect to the vertical axis of the pipe whip and are made in the form of rollers of dielectric material characterized in that the third lower protective element is additionally introduced, also made in the form of a roller and located along the vertical axis of the pipe whip. 2. The device according to claim 1, characterized in that the two lower protective elements are each located at an angle α = 45-55 ° relative to the vertical axis of the pipe whip. 3. The device according to claim 1 or 2, characterized in that the upper protective element located along the vertical axis of the pipe whip is made in the form of a roller of dielectric material. 4. The device according to claim 1 or 2, characterized in that the upper protective element located on the vertical axis of the pipe whip and the side protective elements located on its horizontal axis are made in the form of blocks of dielectric material. 5. The device according to claim 4, characterized in that the upper and side protective elements in the form of pads of dielectric material are spring-loaded.