Signal protective grid

FIELD: hydraulic equipment, particularly mechanical equipment for hydraulic structures, namely heat power plants, atomic power plants and hydroelectric power plants, to protect underwater structure parts from unauthorized access in supply and discharge channels thereof.

SUBSTANCE: protective grid comprises vertical rods and connecting members. Two-level control system is arranged in the grid. One level comprises two independent signaling circuits. The first circuit is arranged in vertical rods shaped as vertical hollow pipes in which contact signaling means wire provided with sensors is arranged. The sensors are located in upper horizontal pipe of independent section. Wires of contact signaling means and sensors are united to form common cable. Wires of contact signaling means formed in the second circuit are located in two extreme hollow pipes and connected with two or more water sensors located in lower horizontal pipe. Lower horizontal pipe and upper horizontal pipe are communicated with all vertical hollow pipes. Common cable of the first circuit and wires of the second circuit are led out and connected to sound and light alarm of the grid and to operator's console. Another level has portable television probe adapted to perform vision-based monitoring and to determine quantity and qualitative characteristics of detected deformations. The television probe may slide along guiding means, for instance along rings. The grid may be installed in slots of hydraulic structure and may be displaced in horizontal direction by hoisting device. Upper and lower horizontal pipes, as well as vertical hollow pipes may be U-shaped or linear and are formed of round or elongated profile. Connecting member may be formed as solid horizontal plate or have hollow ellipsoid shape adapted to receive additional contact signaling means wires.

EFFECT: increased operational reliability, increased accuracy of deformation location and type.

4 cl, 4 dwg

 

The invention relates to hydraulic engineering and can be used as part of mechanical equipment hydraulic structures designed to protect the underwater part of the structures, in particular, from unauthorized access to the waters of the inlet and outlet channels of hydraulic structures increased responsibility (thermal, nuclear, hydro etc).

Known trash rack, containing the rods installed in the stream and attached to the horizontal frame elements, more moving horizontal beams, with their length of holes and grooves, the load attached to the lower horizontal element of a frame, an axle and reinforced along its length with hooks, shelves, mounted on the vertical frame elements. The rods are made in the form of strings and inserted in the holes of the movable horizontal beams. The upper ends of the strings attached to the top horizontal frame element, and the bottom is made in the form of loops, interacting with hooks axis. (A.S. USSR №1559042, E 02 In 5/08, epubl,)

The disadvantage of analogue is that this trash lattice is not possible to get information about the integrity of the whole structure.

Known fiber-optic network for the protection of diversion channels, offshore drilling rigs, etc. that are installed in open equator the s on bonded together by tubular floats, which are underwater and above-water parts of the network that is used as a sensor that responds to attempts by cutting, tearing, stretching and snapping (magazine "Special technique", No. 4, 2004 S, 26).

The disadvantage of analogue is that it is quite expensive and to protect watercourses hydraulic structures due to low physical protection from floating objects of little use.

Known trash grille with vertical bars connected by horizontal tie-rods and which is provided with an additional vertical rods and connecting elements. The rods are symmetrically attached to the couplers on both sides, and the connecting elements are located between the rods and attached to them. (A.S. USSR №1117365, E 02 In 5/08, epubl year).

By the greatest number of similar features and achieved when using the result of this technical solution is selected as a prototype.

The disadvantages of the prototype are low reliability due to the significant stresses in the rods from static and dynamic loads at significant flow rates, which may be partially clogged lattice, as well as the lack of information about structural integrity.

The technical result, which is aimed by the invention, which is to improve the reliability of operation, warning, the indication of the location and nature of deformation using two-level system control, repair offline sections of the signal grille by replacement without disconnecting the alarm of the whole structure, excluding any foreign object floating in and unauthorized access to the protected part of the area of hydraulic structures.

To achieve the technical result in the signal protective grille with vertical bars and the connecting elements, placed two-level control system, one level contains two independent alarm circuit. The first circuit is located in a vertical rods, made in the form of a vertical hollow tubes, which are placed in the wire contact alarm with sensors located in the upper horizontal pipe standalone section. Wire contact alarms and sensors are integrated into a common wire. Wire pin alarm system of the second circuit are arranged in two vertical hollow tubes and are connected with two or more sensors of the presence of water located in the lower horizontal pipe, which, like the upper horizontal pipe communicated with all vertical hollow tubes. Moreover, the common wire of the first loop and the second wire circuit derived as sound and light working intensively is the situation of the lattice, and on the operator's console. In the second level for the video and determine the qualitative and quantitative characteristics of the detected deformation is mounted for movement along the guide rails, such as rings, portable TV transmitter.

In addition, the claimed technical solution has optional features that characterize its special cases, namely:

signal protective grille installed in the slots hydraulic structures with the possibility of vertical movement by means of a lifting device;

- upper and lower horizontal pipe, and a vertical hollow tube, which may be U-shaped or linear shape, made of round or oblong profile;

- the connecting element is designed as a solid horizontal plate in a hollow ellipsoidal shape, which can be additional wire contact alarm.

The hallmark of the invention from the above known closest to him is that signal the protective screen placed two-level control system, one layer of which contains two independent alarm circuit, and the second level is equipped with a portable television transmitter.

With this control system the opportunity not only Paul who receive timely information about the integrity of the grid, and its separate elements, but also the detection and localization of the site of the damage signal grille, as well as determine the extent and nature of deformation of individual elements at any point without special diving inspection and dismantling of Autonomous partitions.

The proposed signal protective grating is illustrated in the drawings, figure 1-4.

Figure 1 shows the signal protective grille. General view.

Figure 2 - portable TV transmitter. General view.

Figure 3 is a fragment of the location of the contact wire alarm system with sensors in the upper part of the Autonomous section of the signal protective grille.

Figure 4 is a fragment of the location of the wire contact alarm sensor the presence of water in the lower part of the Autonomous section of the signal protective grille.

Protective signaling lattice (figure 1) includes a vertical hollow tube 1, the connecting elements 2, made in the form of horizontal plates, vertical hollow tubes 1 posted by wire contact alarm 3 sensors 4 (figure 3), which are United in the common wire 5, located in the upper horizontal pipe 6, the wire contact alarm 7 two extreme vertical hollow tubes 8 are connected with sensors 9 the presence of water located in the lower horizontal pipe 10 (figure 4), communicating with all vertically the mi hollow tubes 1 and 8, the portable TV transmitter 11, moving on rails, for example the rings 12 (lifting device and the remote operator not shown).

The protective signaling lattice as follows.

The garbage is put into the stream of water on a vertical hollow tube 1 and delayed, constraining the flow, resulting in a pressure signal on the protective grille.

After the appearance of a certain pressure on a vertical hollow tube 1 or 8 when their deformation, as, for example, offset from the vertical or the gap is opened, the wire contact alarm 3 or 7 sensors 4 of the first path or sensors 9 the presence of water, the second circuit, in this case the transmitted along the common wire 5 sound or light signal is reflected on the monitor of the operator.

As tightness of the first or second circuit, ingestion vertical hollow tubes 1 or 8 water, triggered one of the sensors 9 water availability, which are at the bottom of the horizontal pipe 10 each Autonomous partition.

At the same time in a two-level control system is surveillance, which is a portable television probe 11 provided for this purpose in each section of the signal grille guides, such as rings 12.

Thus, the first and the Torah levels of monitoring systems provide alarm systems for any displacement or deformation of the vertical hollow tubes 1 or the ingress of water into the cavity of a vertical hollow tubes 8 when seal failure.

After receiving information about the specific damage site using a portable television transmitter 11, the moving ring 12, the operator at the remote clarifies the cause of the damage and determines its scope.

After that, if necessary, corrupted, offline section of the signal protective grill can be lifted by the lifting device without disabling the alarm monitoring system the rest of the parts for repairing the damage.

In addition, the signal protection grid prevents the ingress of foreign object floating in the protected part of the area, raising an Autonomous section of the proposed lattice, it becomes possible to clean the bottom of the reservoir, as well as repair or replacement of defective elements of a structure by replacing them within a short period of time, for example from one to three hours.

The proposed signal protective grille can be used in existing designs of various trash grates or similar structures, complementing functions prevent floating debris monitoring of unauthorized entry into the protected part of the area of hydraulic structures increased responsibility.

1. Signal protective grille with vertical bars and the connecting elements, wherein the signal protective screen placed two-level control system, one level contains two independent alarm circuit, the first circuit is located in a vertical rods, made in the form of a vertical hollow tubes, which are placed in the wire contact alarm with sensors located in the upper horizontal pipe independent sections, wires contact alarms and sensors are integrated into a common wire, and the wire contact alarm of the second circuit are arranged in two vertical hollow tubes and are connected with two or more sensors of the presence of water located in the lower horizontal pipe, which, like the upper horizontal pipe communicated with all vertical hollow tubes, and the common wire of the first circuit and wire the second circuit withdrawn as sound and light alarm of the lattice, and the operator, in the second level for the video and determine the qualitative and quantitative characteristics of the detected deformation is mounted for movement along the guide rails, such as rings, portable TV transmitter.

2. Grill according to claim 1, characterized in that it is installed in the slots hydraulic structures with the possibility of vertical movement by means of a lifting device.

3. Grill according to claim 1, characterized in that the upper and lower horizontal tubes, and ve is a vertical hollow tube, which may be U-shaped or linear shape, made of round or oblong profile.

4. Grill according to claim 1, characterized in that the connecting element is designed as a solid horizontal plate or hollow ellipsoidal shape, which can be additional wire contact alarm.



 

Same patents:

FIELD: hydraulic engineering.

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FIELD: hydraulic engineering.

SUBSTANCE: invention relates to devices for taking water from surface sources and it is designed to provide protection of diversion facilities from slush ice. Proposed device contains three-dimensional filtering cassettes installed in guide of slot structure of intake port of submerged water intake head of diversion facility consisting of metal rectangular frame with filtering plastic tubes tightly fitted in slots on inner side. Plastic tubes are made truncated along their generatrices on secant line of base of corresponding filtering plastic tube. Chord of secant line of base of filtering plastic tubes is either equal to or non- equal to outer diameter of tubes, and dimensions of metal rectangular frame are multiple of said chord. Truncated filtering plastic tubes can be installed in metal rectangular frame in slots on inner side, either vertically or horizontally, being interconnected by hydraulic insulating material.

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