RU2465701C1 - Sealed passage of cable communication lines - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: invention may be used as a sealed entrance of electric cables via tight protective walls, boxes, where high reliability of hazardous products confinement is required during trials, including explosive ones, supply of high number of cable communication lines (CCL) to a trial facility for operation of plants, to control various units, the trial facility and environment in the area of its location, receiving information from measurement practices. A sealed passage for cables comprises a cast-in pipe, where cable communication lines (CCL) are laid, its inner volume is filled with an insulation material, adapters are sealed to the cast-in pipe at both sides with flanges increased in diameter relative to the cast-in pipe, where nozzles are tightly fixed, on the outer sides of which there are also panels tightly installed for tight fixation of CCL connectors on them, nozzles are equipped with unions for inspection of tightness of the sealed passage.

EFFECT: invention provides for development of a sealed passage for cable communication lines with maximum possible quantity of CCL, heat and radiation resistance of design, protection against neutron radiation.

9 cl, 1 dwg

Description

The invention relates to electrical engineering and can be used as a hermetic input of electric cables through sealed protective walls, boxes where high reliability of harmful products localization is required during experiments, including explosive ones, bringing a large number of cable communication lines to the test object to enable installations, control various nodes, control the test object and the environment at its location, obtain information from measurement procedures.

A device is known (p. RF 2227353 C1, publ. 20.04.2004) - penetration of electrical communications to ensure a sealed passage of electrical communications in a zone separated by a sealed wall with ionizing radiation, consisting of a housing with conductors hermetically fixed at its ends, additionally protected on both sides casings hermetically connected to the ends of the housing.

The disadvantage of this device is the use of welding after docking conductors and the tightness control of not all penetration cavities.

A device is known (p. RF 2007807 C1, publ. 02.15.1994) - fireproof penetration for cables and pipelines, used as hermetic bushings of electric cables into the working area, consisting of a housing, embedded pipe, in which the cables are laid, closed on both sides flanges and filled with insulating high temperature material.

The disadvantage of this device is the lack of hermetic docking of cables to the tunnel, which excludes the mobility of using this device in operating conditions.

The objective of the invention is to create a leakproof cable communication lines, which will allow you to lay the maximum possible number of CLS through a metal embedded pipe in the protective wall, ensuring the tightness of the cable routing, thermal radiation resistance of the structure with the ability to fill the free volume of the leakage with cement mortar to protect against neutron radiation.

The problem is solved in that the hermetic penetration for cables containing the embedded pipe in which the cable lines are laid, its internal volume is filled with insulating material, differs from the prototype in that adapters with flanges are welded to the embedded pipe on both sides, on which the pipes are hermetically fixed, on the outer sides of which there are also hermetically sealed panels for hermetically fastening hermetic CLS connectors on them, the nozzles are equipped with fittings for checking the leakage for leakage. Adapters are made of steel, equipped with nozzles for the possibility of filling with an insulating substance. As an insulating substance, a protective material from neutron radiation was used, namely, S88 non-shrink cement mixture. Cable lines are installed in the flanges of the adapters using half rings and sealing with bandages. The nozzles are made of steel, mounted on the flanges of the adapters through the gaskets and have an increased diameter for the possibility of laying the maximum possible number of HFs and ease of installation of the HFs. The panels are mounted on the nozzles using rings through the gaskets. Sealed connectors KLS installed on the panel through the gaskets and closed with protective caps. The ends of the germ penetrations are closed with protective caps.

The tightness of the design is ensured by the fact that all the connections have sealing elements, and the fittings on the nozzles make it possible to control the tightness as necessary.

Laying the maximum number of communication lines is ensured by the fact that the flanges welded to the adapters are increased in diameter with respect to the embedded pipe, which allows you to place the maximum number of connectors on the panels.

The possibility of pouring cement mortar is provided by the design of adapters having nozzles for connecting the cement pump on one side and controlling the filling of the embedded pipe on the other hand.

The drawing shows the design of the sealing passage KLS.

The CLS gas passage consists of a fixed pipe 1, welded into the metal frame of a sealed protective wall 2, at the ends of which there are adapters 3, equipped with nozzles 4, closed caps 5. The adapters 7 are tightly fixed to the adapters through the gaskets 6, equipped with fittings 8 for tightness testing. Inside the structure, cable communication lines 9 are laid, fixed in the flange of the adapters 3 with the help of half rings 10 and seals 11. The free cavity of the embedded pipe 1 and adapters 3 is filled with non-shrink cement mixture 12. Sealed KLS 13 connectors are sealed through gaskets on panels 14 mounted on the nozzles using the rings 15 through the gaskets 16. Protective caps 17 are installed on the connectors. The ends of the transition are closed by caps 18.

Assembly is as follows.

Adapters 3 are welded to the embedded pipe 1 welded into the metal frame of the sealed protective wall 2. Cable lines 9 are pulled through this structure, their sealed connectors 13 are installed on both sides hermetically on the panel 14. Protective caps 17 are installed on the connectors 13. CLS is fixed 9 with the help of half rings 10 and seals 11, consisting of several layers of bandage and sealant. CLS 9 is checked for circuit integrity. Next, the free cavity of the embedded pipes 1 and adapters 3 is filled in with non-shrinking cement mixture 12 through one of the pipes 4 (the end of the filling is determined by the exit of the cement mixture from the second pipe). Sealed caps 5 are installed on the nozzles after the solution has hardened. The nozzles 7 are sealed on the flanges of the adapters 3 through the gaskets 6. The panels 14 are sealed to the nozzles 7 through the rings 15 through the gaskets 16 and the leakproofness through the fitting 8 is checked on the nozzles 7 and the electric CLS inspection 9. The ends of the germ penetration are closed with protective caps 18.

This design solution has several advantages:

- allows you to lay a large number of CLS through each embedded pipe;

- provides reliable fastening to a mortgage pipe;

- provides tightness of laying of KLS;

- rubber gaskets make it easy and reliable to ensure tightness;

- provides the ability to simply and technologically fill the structure with cement mixture.

Claims (9)

1. A heat penetration for cables, containing an embedded pipe in which cable communication lines (CLS) are laid, its internal volume is filled with insulating material, characterized in that adapters with flanges enlarged in diameter relative to the embedded pipe are welded to the embedded pipe on both sides of which the nozzles are hermetically fixed, on the outside of which the panels are also hermetically mounted for fastening the CLS connectors tightly on them, the nozzles are equipped with fittings for checking the leakage for leakage. 2. Germ passage CLS according to claim 1, characterized in that the embedded pipe on both sides is equipped with nozzles for the possibility of filling with an insulating substance. 3. The CLS thermoprobe according to claim 1, characterized in that a protective material from neutron radiation is used as an insulating substance. 4. CLS germ penetration according to claim 3, characterized in that a non-shrink cement mixture is used as an insulating substance. 5. CLS germ penetration according to claim 1, characterized in that the nozzles are made of steel, are mounted on the adapter flanges through the gaskets and have an increased diameter for the possibility of laying the maximum possible number of CLS. 6. The CLS thermoprobe according to claim 1, characterized in that the panels are hermetically mounted on the nozzles using rings through the gaskets. 7. Thermoprotection KLS according to claim 1, characterized in that hermetic connectors are used in the KLS. 8. CLS thermoprobe according to claim 1, characterized in that the CLS connectors are installed on the panel through the gaskets and are closed with protective caps. 9. KLS CL passage according to claim 1, characterized in that the panels on the outside are covered with protective caps.