RU2580418C2 - Control-measuring station for electrochemical protection of underground structure - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: test station is made of a pipe section of rectangular cross section, on upper end of which there is a terminal pad comprising a support-connection ring, on inner surface of which there are holders in form of vertical guides with slots in which are inserted interchangeable terminal panels; on each terminal panel there is a grid of mounting holes, wherein adjacent holes are arranged at equal distance from each other, a cover is made as a removable cap, which is a tetrahedral prism mounted to interact with support-connection ring, distance mark sign is demountable and consists of two indicating plates and two connecting arms.

EFFECT: broader functional capabilities, improved convenience and easier maintenance, as well as compact design of test station.

1 cl, 8 dwg

Description

The claimed invention relates to systems for the electrochemical protection of underground utilities, namely, control and measuring devices for monitoring the level of corrosion of a pipeline, cable communication lines and electrical networks for underground utilities, and is intended to monitor and control the parameters of electrochemical protection, switching power and measuring circuits means of electrochemical protection and control of their parameters, marking pipeline routes and other underground metal structures s and communications.

Control and measuring points (CIP) are installed along the underground communications route: on the linear part of the main pipelines within sight, but not less than 500-1000 m (depending on the corrosion hazard of the underground communications section), at the intersections with other above-ground and underground communications, at the intersection of pipelines with high-voltage power lines, on both sides of the intersection of the underground communications route with artificial and natural obstacles (automobile railways, rivers, etc.), in the insets, couplings electrically insulating, at the connections of the cable to the drainage of underground utilities and others.

A well-known control point of the electrochemical protection of an underground structure, including a stand, a headgear with a terminal panel and a kilometer sign, the stand is made in the form of a vertical metal pipe buried in the ground, and the headgear is made in the form of a metal hollow triangular prism mounted so that one of its faces in the working position is located horizontally, pivotally attached to the top of the steel pipe so that when opening the headgear forms a table for accommodating the measuring device ra or a magazine for making measurements in the field, while the headgear is equipped with a lock located in a hard-to-reach place, service information is located on the side inclined edges of the headgear, and the terminal block is installed so that when the headgear is opened, it is freely accessible from all sides (patent for useful Model No. 42622, IPC F17D 5/00, publication date 10/12/2004, "Control and measuring point of electrochemical protection of underground structures").

The instrument cover in the form of a headgear in the open position does not provide convenient free operator access to the terminal panel from all sides and interferes with convenient maintenance of the terminal panel or its remounting.

The presence in the device of only one terminal panel installed inside a hollow triangular prism does not allow for quick remounting of the connections, since during reconfiguration it is necessary to install a new terminal panel instead of a removed one with a different set of holes intended for another circuit solution.

Known instrumentation does not provide, if necessary, the installation of several terminal panels.

As a prototype, a test station stand was adopted, containing a pipe segment with a base plate attached to it from below and panels for connecting measurement cables, equipped with a hinged lid with locks, while the hinged lid is a casing with two inclined planes for inscription, the base plate is attached to the pipe segment using no more than two angles, and the terminal panels are mounted on brackets that provide two-way service, a support is attached to the pipe for installing an additional device, and a hole is made in the pipe wall for connecting cables from it (utility model patent No. 45521, IPC G01D 11/00, publication date 05/10/2005, “Stand of the control and measuring point”).

Placing four terminal panels in pairs on two brackets ensures their two-sided maintenance, but the hinged instrument cover in the open position does not allow the operator to approach the terminal panel from all sides, interferes with convenient maintenance of the terminal panel and its remounting, and creates inconvenience during control measurements.

The placement of terminal panels on the brackets does not allow the placement of a larger number of terminal panels in the instrumentation, if necessary, additional cable mounting connections, which limits the scope of the instrumentation.

Double-sided pairwise arrangement of terminal panels on the brackets increases the vertical size of the brackets and, accordingly, the vertical size of the hinged cover, which increases the material consumption of the cover, as well as increases the windage of the structure and creates a bulky appearance.

The objective of the proposed technical solution is to expand the functionality, to increase convenience and reduce the complexity of maintenance and creating a compact design of the control and measuring point.

The task is achieved due to the fact that in the control point of the electrochemical protection of the underground structure, containing a rack made in the form of a vertical pipe buried in the ground, terminal panels, a cover with a locking device, a kilometer mark, the rack is made of a pipe segment of rectangular cross section, at the top of the rack there is a terminal terminal containing a support-connecting ring, on the inner surface of which holders are made in the form of vertical guides with In the basics in which interchangeable terminal panels are installed, a grid of mounting holes is made on each terminal panel, while adjacent holes are located at the same distance from each other, the cover is made in the form of a removable cap, which is a tetrahedral prism, installed with the possibility of interaction with the supporting-connecting ring, the kilometer mark is made collapsible and consists of two index plates and two connecting brackets.

The execution of the rack in the form of a piece of pipe of rectangular cross-section provides a compact placement of the terminal terminal. The presence of a terminal terminal containing a support ring, on the inner surface of which holders are made in the form of vertical guides with grooves in which interchangeable terminal panels are installed, allows compactly accommodating up to 12 quick and easy removable terminal panels in the terminal terminal, providing an extension of functional instrumentation capabilities, as well as the flexibility of installation work. Thus, in order to increase the convenience of switching power and measuring circuits, it is possible to arrange terminal panels in any optimal combination of their placement in the grooves of the holders of the support ring.

The implementation of terminal panels easily removable with the possibility of reusable use provides a partial preliminary installation of terminals on terminal panels in a position removed from the instrument, which is especially important in difficult climatic conditions.

The implementation of a grid of equally spaced mounting holes on each removable terminal panel provides interchangeability of terminal panels, increases the unification of their application for a variety of switching options, expanding the functionality of the terminal terminal and reducing the complexity of cable installation.

Compact placement on the terminal terminal rack allows you to make a cover in the form of a compact removable cap that repeats the profile of the rack. The presence in the instrumentation of a removable cap increases convenience and reduces the complexity of servicing the terminal terminal due to the possibility of a free approach to it from any direction. The implementation of a removable cap in the form of a tetrahedral prism, tightly mounted on top of the support-connecting ring and equipped with a locking device, ensures tightness and weather protection of the instrumentation.

The implementation of the kilometer mark in the form of a collapsible design, consisting of a set of 4 elements - two index plates and two connecting brackets, can significantly increase its compactness, ease of installation and transportability.

The presence of distinctive features in the claimed technical solution allows us to conclude that it meets the condition of patentability “novelty”.

The essential features of the claimed invention, which predetermine the receipt of the specified technical result, do not explicitly follow from the prior art, which allows us to conclude that the invention meets the condition of patentability "inventive step".

The patentability condition "industrial applicability" is confirmed by the example of a specific implementation.

The invention is illustrated by technical drawings, where

figure 1 - General view of the control and measuring point;

figure 2 - control point with the cover removed;

figure 3 - control point with extended terminal panel;

figure 4 is a General view of the support-connecting ring;

figure 5 - supporting-connecting ring with two terminal panels;

figure 6 is a General view of the terminal panel;

figure 7 - assembly kilometer sign;

on Fig is a General view of the control and measuring point assembly with a kilometer sign.

The control and measuring station of the electrochemical protection of the underground structure consists of a hollow rack 1, partially buried in the ground to the level 2 indicated on the rack, terminal terminal 3, cover 4 and kilometer mark 5.

The rack 1 is made in the form of a vertically mounted segment of a pipe of rectangular cross section, at the upper end of which a terminal terminal 3 is located, consisting of a support-connecting ring 6, on the inner surface of which holders are made in the form of vertical guides 7 with grooves 8 in which easily removable interchangeable terminal blocks are installed panels 9 with cables connected to them, laid in the internal cavity of the rack 1.

On each removable terminal panel 9, a grid of mounting holes 10 is made to accommodate the measuring and connecting terminals, as well as various units of electrical equipment, while adjacent mounting holes are located at the same distance from each other.

The terminal terminal 3 to prevent access by unauthorized persons and atmospheric influences is closed by a cover 4, lockable 11.

The cover 4 of the instrumentation is made in the form of a removable cap, which is a tetrahedral prism mounted on top of the support-connecting ring 6.

The cover 4 is equipped with a special locking device 11, which prevents unauthorized access to the terminal panels 9 and the blocks of electrical equipment.

The kilometer mark 5 is made collapsible, consists of two index plates 12, on which identification inscriptions are made, and two connecting brackets 13, mounted in the upper part of the rack 1 for easy reading of the kilometer mark both from the ground and from the air.

In the buried part of the instrumentation rack, holes are provided for the anchor device 14, which prevents the free removal of the rack 1 from the ground, as well as a technological window 15 for inputting the measuring and power cables of electrochemical protection.

The side surfaces of the rack are used for the application of warning signs.

Instrumentation is designed for operation in climatic conditions with a range of operating temperatures from minus 60 ° C to plus 60 ° C.

Before installing the instrumentation rack, measurement and power cables are introduced into it through special technological windows 15 provided in the bottom of the rack.

Then place the anchor device 14 in the corresponding holes of the rack, lower the rack into the trench, set it over the axis of the pipeline and fill it with soil, periodically tamping. The depth of the rack depth in the ground is 0.7 m in the basic version and 1.2 m in the version for marshland.

The kilometer sign 5 is fixed on the instrumentation counter. On the index plates 12, an identification number of this control point is placed, the dimensions of which are sufficient to be visible from afar both from the ground and from the helicopter.

To begin work, the operator opens the key to the locking device 11 on the removable cap 4 of the instrument and removes the cap, placing it separately from the instrument, thereby providing free access to terminal 3 from all sides. The operator exercises control and regulation of terminal connections, monitors the reliability of cable connections in the terminals of terminal terminal 3. To monitor and control the parameters of electrochemical protection, switching power and measuring circuits, the operator can push the terminal panels 9 to the upper position (Figs. 3, 4) or if necessary, freely remove the necessary terminal panels 9 from the slots 8 of the holders for ease of maintenance, while each terminal panel 9 is interchangeable and can serve to provide any required switching.

At the end of the work, the removable cap 4 is again installed on the support-connecting ring 6 and closed using the locking device 11.

Thus, the claimed technical solution provides enhanced functionality, increasing convenience and reducing the complexity of maintenance, as well as creating a compact design of a control and measuring point for electrochemical protection of an underground structure.

Claims (1)

Control and measuring station for electrochemical protection of an underground structure, comprising a stand made in the form of a vertical pipe buried in the ground, terminal panels, a cover with a locking device, a kilometer sign, characterized in that the stand is made of a pipe segment of rectangular cross section, at the upper end of the rack is placed a terminal terminal containing a support-connecting ring, on the inner surface of which holders are made in the form of vertical guides with grooves in which are mounted ozamenyaemye terminal panel; a grid of mounting holes is made on each terminal panel, while neighboring holes are located at the same distance from each other, the cover is made in the form of a removable cap, which is a tetrahedral prism mounted with the possibility of interaction with the support-connecting ring, the kilometer sign is collapsible and consists of two index plates and two connecting brackets.

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