CN209767126U

CN209767126U - High-water-head flat gate vibration monitoring system and cable protection device

Info

Publication number: CN209767126U
Application number: CN201920571418.6U
Authority: CN
Inventors: 张文远; 杨帆; 吴一红; 章晋雄; 张宏伟; 张东; 王志刚; 张蕊; 高建标; 李长河
Original assignee: China Institute of Water Resources and Hydropower Research
Current assignee: China Institute of Water Resources and Hydropower Research
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2019-12-10
Anticipated expiration: 2029-04-24

Abstract

the utility model provides a high water head plate gate vibration monitoring system and cable protection device. This cable protection device includes: the gate door body vibration monitoring cable protection assembly comprises a first fixing part and a protection plate, wherein the first fixing part is used for fixing a monitoring cable to a tested gate, and the protection plate is covered on the monitoring cable and is fixed to the tested gate; and the door well monitoring cable protection assembly comprises a supporting piece, a steel wire rope and a lifting piece, wherein the supporting piece is arranged at the top of the measured gate. The steel wire rope is used for connecting the supporting piece and the lifting piece. The lifting piece is arranged at the top of the door well and used for driving the steel wire rope and the monitoring cable above the tested gate to synchronously lift along with the tested gate, so that the reliable protection of the gate vibration monitoring cable is realized, the integrity of the monitoring cable in the process of opening and closing the tested gate in flowing water is ensured, and the safe and reliable operation of a high-head horizontal plate gate system and a water outlet building is ensured.

Description

High-water-head flat gate vibration monitoring system and cable protection device

Technical Field

the utility model relates to a hydraulic and hydroelectric engineering technical field especially relates to a high water head plate gate vibration monitoring system and cable protection device.

background

At present, a plurality of large-scale hydro-junction projects are built in China, various types of water drainage facilities are arranged on the general large-scale hydro-junction projects, and various gates are arranged at water inlets and water outlets of spillways, flood discharging tunnels and the like in the water drainage facilities so as to meet the requirement of controlling water flow of hydraulic buildings. Whether the gate works normally will directly affect the safe operation of the hydraulic structure and the dam. The problems of hydraulic load and vibration in the operation process of the high-water-head hydraulic gate are extremely complex, and the vibration property of the gate structure has diversity due to different gate structures, so that the middle plane gate is particularly prominent. Therefore, after the power station is built, the operation condition of the gate can be comprehensively and objectively known through a prototype observation means, and the operation safety of the gate and the power station is ensured, so that the method has important significance.

In the vibration monitoring of a high-head horizontal plate gate system, a measuring instrument is mainly installed on a gate by the current means, and an output signal of the instrument is transmitted to an observation room through a monitoring cable which is temporarily arranged. However, the gate has high operation water head and severe operation environment, the flow velocity in the measured gate body and the gate well is high, the wind speed is high, the pulling impact force on the monitoring cable is large, the fall between the monitoring platform and the gate is large, the monitoring cable is heavy in weight and low in strength, and the monitoring platform is very easy to break and damage under severe environment, falls into a gate slot to block the gate, and causes accidents and gate operation state monitoring data which cannot be accurately obtained.

Generally, prototype monitoring among the hydraulic engineering mostly adopts the mode of pre-buried monitoring cable, the monitoring cable is pre-buried in the concrete, and multiple protective measures such as pillar have been adopted, but to the signal cable among the high head plate gate vibration monitoring, because the gate is the motion, and the environment of gate operation is unusually abominable, the mode of pre-buried monitoring cable is adopted to the nowhere, can only be arranging interim monitoring cable on treating the gate of monitoring, this monitoring cable exposes and suffers destruction very easily in abominable environment, thereby can't accurately obtain gate running state monitoring data, make reasonable arrangement to the operation management of gate, thereby avoid the emergence of accident.

SUMMERY OF THE UTILITY MODEL

based on this, it is necessary to provide a cable protection device of a high-head flat gate vibration monitoring system and an arrangement method thereof for solving the problem that a monitoring cable is easily damaged when exposed to a severe environment in the existing hydraulic and hydroelectric engineering.

The above purpose is realized by the following technical scheme:

The utility model provides a high head plate gate vibration monitoring system's cable protection device installs in high head plate gate vibration monitoring system, cable protection device includes:

the gate door body vibration monitoring cable protection assembly comprises a first fixing part and a protection plate, wherein the first fixing part is used for fixing a monitoring cable to a tested gate, and the protection plate is covered on the monitoring cable and is fixed to the tested gate; and

Door well monitoring cable protection component, including support piece, wire rope and lifting member, support piece set up in surveyed gate top, be used for with the monitoring cable is lifted to and is left surveyed gate top predetermined height, wire rope is used for connecting support piece with lifting member bears the monitoring cable, lifting member set up in door well top, be used for driving be surveyed the gate top wire rope with the monitoring cable is followed the synchronous lift of survey gate.

In one embodiment, the first fixing member has a limiting portion and a fixing portion, the limiting portion has a limiting groove for accommodating the monitoring cable, and the fixing portion is used for fixing to the gate to be tested;

The limiting groove is arc-shaped, fold-line-shaped or polygonal.

In one embodiment, the number of the first fixing pieces is multiple, the multiple first fixing pieces are arranged along the direction of the monitoring cable, and a first preset distance exists between every two adjacent first fixing pieces;

the range of the first preset distance is 0.2 m-0.8 m.

In one embodiment, the protection plate is made of stainless steel and is welded to the gate to be tested;

The thickness range of the protective plate is 1.5 mm-6 mm.

In one embodiment, the support is a support plate or a support rod, and the door well monitoring cable protection assembly further comprises a second fixing piece for fixing the monitoring cable close to the top position of the tested gate to the support;

or, the support piece is a support frame, the support frame is provided with an accommodating space, and the monitoring cable is located in the accommodating space.

In one embodiment, the height of the support is 1/4-3/4 of the height of the measured gate;

And/or the height of the support member is greater than or equal to 1.5 m.

in one embodiment, the second fixing piece is a hoop, or the structure of the second fixing piece is the same as that of the first fixing piece;

the number of the second fixing pieces is multiple, the second fixing pieces are arranged along the direction of the monitoring cable, and a second preset interval exists between every two adjacent second fixing pieces;

The range of the second preset distance is 0.2 m-0.8 m.

in one embodiment, the door well monitoring cable protection assembly further comprises a third fixing piece, the lifting piece comprises a hoist capable of driving a steel wire rope to lift, one end of the steel wire rope is connected with the supporting piece at the top of the detected gate, the other end of the steel wire rope is connected with a hoist hook of the hoist, and the monitoring cable is further fixed on the steel wire rope through the third fixing piece.

In one embodiment, the number of the third fixing pieces is multiple, the multiple third fixing pieces are arranged along the direction of the monitoring cable, and a third preset distance exists between every two adjacent third fixing pieces;

the range of the third preset distance is 0.5-1.5 m; the hoist is an electric hoist or a manual hoist; the hoist is fixed on a hoist support frame at the upper part of the door well; the diameter of the steel wire rope is more than or equal to 6 mm; the monitoring cable is fixed on at least one steel wire rope.

The utility model provides a high head plate gate vibration monitoring system, includes surveyed gate, measuring instrument, monitoring cable, data acquisition analytic system and as above-mentioned any technical characteristic cable protection device, the measuring instrument set up in surveyed gate, and pass through the monitoring cable is with vibration signal transmission to observation platform, cable protection device set up in surveyed gate is used for the protection monitoring cable.

after the technical scheme is adopted, the utility model discloses following technological effect has at least:

The utility model discloses a high water head plate gate vibration monitoring system and cable protection device, through the gate door body vibration detection cable protection subassembly to the monitoring cable on being surveyed the gate protect, first mounting will monitor the cable and be fixed in being surveyed the gate to adopt the protective plate cover in monitoring cable, avoid the high-speed rivers impact force that monitoring cable received. Meanwhile, the monitoring cable positioned in the door well above the measured gate is protected by the door well monitoring cable protection assembly, when the measured gate is opened or closed, the part of the monitoring cable at the top of the gate is supported by the support piece, the lifting piece drives the steel wire rope in the door well and the monitoring cable to synchronously ascend or descend, so that the monitoring cable is basically kept straight in the whole opening and closing process of the measured gate, the dead weight and the stress of the monitoring cable are mainly borne by the steel wire rope, the monitoring cable is effectively prevented from being pulled by high-speed water flow and strong wind impact to greatly swing and damage and from rubbing and blocking with the measured gate, the normal acquisition of monitoring data and the normal opening and closing of the measured gate are influenced, the problem that the monitoring cable is easily damaged when exposed to severe environment in the current hydraulic engineering is effectively solved, the reliable protection of the monitoring cable is realized, and the integrity of the monitoring cable is ensured, and further, the running state of the high-head horizontal plate gate system can be reliably monitored, and the reliable running of the high-head horizontal plate gate system and the running safety of a power station can be guaranteed.

Drawings

Fig. 1 is a schematic layout view of a vibration monitoring system of a high-head flat gate according to an embodiment of the present invention;

FIG. 2 is a schematic view of the cable protection device shown in FIG. 1 at a portion of a gate body;

Fig. 3 is a schematic view of a gate door vibration monitoring cable protection assembly in the cable protection device shown in fig. 2.

Wherein:

100-cable protection devices;

110-a gate door body vibration monitoring cable protection component;

111-a first fixture;

112-protective plate;

120-door well monitoring cable protection assembly;

121-a support;

122-a steel cord;

123-gourd;

124-a second fixing piece;

125-a third fastener;

126-a gourd support frame;

200-monitoring the cable;

300-a gate to be tested;

400-door well;

500-a measuring instrument;

600-Observation platform.

Detailed Description

in order to make the purpose, technical scheme and advantage of the utility model more clearly understand, following through the embodiment to combine the figure, it is right to the utility model discloses a high water head plate gate vibration monitoring system and cable protection device carry out further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

the numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, the present invention provides a cable protection device 100 for monitoring vibration of a high head plate gate. The cable protection device 100 is applied to a high-head flat gate vibration monitoring system and is used for protecting a monitoring cable 200 on a tested gate 300 of the high-head flat gate vibration monitoring system. Of course, in other embodiments of the present invention, the cable protection device 100 may also be used on other types of gates in hydraulic and hydro-power engineering. The utility model discloses a cable protection device 100 can protect the monitoring cable 200 on the measured gate 300 among the high water head plate gate vibration monitoring system, reduce the monitoring cable 200 that arouses because of high-speed rivers and strong wind in the well 400 and largely swing and drag the destruction, still avoid simultaneously monitoring cable 200 and being taken place to cut the piece of rubbing and hinder between the measured gate 300, realize the reliable protection of monitoring cable 200, guarantee the intact and the normal operation of opening and close of being surveyed the gate of monitoring cable 200, and then realize the reliable transmission of high water head plate gate vibration monitoring data and the reliable monitoring of gate running state, guarantee the reliable operation of high water head plate gate and sluicing system and the operation safety of power station engineering.

In one embodiment, the cable protection device 100 includes a gate door vibration monitoring cable protection assembly 110 and a door well monitoring cable protection assembly 120. The gate door body vibration monitoring cable protection component 110 is installed on the tested gate 300, and the gate well monitoring cable protection component 120 is located above the tested gate 300. The gate door body vibration monitoring cable protection component 110 is used for protecting the monitoring cable 200 of the detected gate 300 door body, and the gate well monitoring cable protection component 120 is used for protecting the monitoring cable 200 above the detected gate 300 and in the gate well 400, so that the monitoring cable 200 is prevented from being damaged.

It can be understood that the monitoring cable 200 is arranged on the gate 300 to be tested to monitor and transmit the hydraulic load and the vibration signal of the door body in the operation process of the high-head flat gate, so that the operation condition of the high-head flat gate can be comprehensively analyzed and mastered, and the operation safety of the high-head flat gate and the hydropower station engineering can be ensured. A measured gate 300 of the high-head flat gate is monitored by adopting a prototype observation means, specifically, a measuring instrument 500 is installed on the measured gate 300, and an output signal of the measuring instrument 500 is transmitted to an observation indirect access data acquisition and analysis system through a monitoring cable 200.

The monitoring cable 200 on the gate 300 to be tested is positioned on the surface of the gate 300 to be tested and is arranged from the gate well 400 above the gate 300 to the observation room above the gate well 400. In this process, the monitoring cable 200 on the measured gate 300 door body can receive the impact of high-speed rivers, and the monitoring cable 200 in the door well 400 can bear great pulling force under high-speed rivers and strong wind effect, consequently, will be protected by the monitoring cable 200 on the measured gate 300 through the monitoring cable protection component 110 of gate door body vibration, avoids high-speed rivers to strike monitoring cable 200. The monitoring cable 200 in the door well 400 is protected by the door well monitoring cable protection component 120, and the monitoring cable 200 is prevented from being largely swung, pulled and damaged under the action of strong wind and water flow. The gate door body vibration monitoring cable protection assembly 110 and the gate shaft monitoring cable protection assembly 120 perform segmented protection on the monitoring cable 200, so that the monitoring cable 200 is prevented from being damaged, the signal transmission reliability of the monitoring cable 200 is improved, the smooth implementation of the monitoring process and the accuracy and reliability of monitoring data are ensured, and the accurate analysis of the running state of the high-water-head flat gate and the safe running of a hydropower station are further ensured.

Specifically, the gate door body vibration monitoring cable protection assembly 110 includes a first fixing member 111 and a protection plate 112, the first fixing member 111 fixes the monitoring cable 200 to the gate 300 to be tested, and the protection plate 112 covers the monitoring cable 200 and is fixed to the gate 300 to be tested. The door well monitoring cable protection assembly 120 comprises a support 121, a steel cable 122 and a lifting member, wherein the support 121 is arranged at the top of the measured gate 300 and used for lifting the monitoring cable 200 to a preset height from the top of the measured gate 300 so as to support the monitoring cable 200 at the top part of the measured gate, and the steel cable 122 is used for connecting the support 121 and the lifting member and carrying the monitoring cable 200. The wire rope 122 can bear the main stress of the monitoring cable 200 and prevent the monitoring cable from being damaged by large swing and pulling. The lifting piece is arranged at the top of the door well 400 and used for driving the steel wire rope above the measured gate 300 and the monitoring cable 200 to synchronously lift along with the measured gate 300.

the first fixing part 111 may fix the monitoring cable 200 to the gate 300 to be tested, so that the monitoring cable 200 does not swing substantially under the external force, and the shielding plate 112 is covered on the monitoring cable 200, so that the high-speed water flow impinges on the shielding plate 112 without contacting with the monitoring cable 200. Like this, can avoid monitoring cable 200 to swing by a wide margin and drag the damage under the high-speed rivers effect, can also avoid monitoring cable 200 and surveyed gate 300 to take place the card and hinder, avoid monitoring cable 200 to damage and gate card to hinder and can not normal operating.

To further protect the monitoring cable 200 in the door well 400, the monitoring cable 200 is also secured and lifted by the wireline 122. The steel wire rope 122 can bear the dead weight of the monitoring cable 200, so that the monitoring cable 200 is ensured to be in a straight state, and meanwhile, the monitoring cable 200 can be driven to synchronously lift. Meanwhile, the supporting member 121 supports the monitoring cable 200 above the measured gate 300, so that the monitoring cable 200 is always kept in a straight state within a certain height range above the measured gate 300, and the lifting member of the upper platform of the door well 400 can drive the monitoring cable 200 to synchronously lift along with the measured gate 300. That is to say, in the opening and closing process of the high head flat gate vibration detection system, the lifting member can lift or lower the steel wire rope 122 and the monitoring cable 200, so that the monitoring cable 200 above the detected gate 300 is always in a straight state. Like this, because wire rope 122's restriction and support element 121's supporting role, can avoid monitoring cable 200 to swing by a wide margin and drag the damage under strong wind and rivers effect, can also avoid monitoring cable 200 and surveyed gate 300 to take place the jam, avoid monitoring cable 200 to damage and gate jam can not normal operating.

optionally, the strength of the cable 122 should be selected according to the number and length of the monitoring cables 200, so that the strength of the cable 122 satisfies the requirements of the monitoring cables 200 for carrying weight and resisting the pulling force of the water flow and wind in the door well 400. Optionally, the diameter of the steel cord 122 is greater than or equal to 6 mm. Therefore, the strength of the steel wire rope 122 can be ensured, and the steel wire rope 122 is prevented from being broken. Optionally, the monitoring cable 200 is secured with at least one wire rope 122. The monitoring cable 200 may be directly strapped to the same wireline 122. Of course, when the number of the monitoring cables 200 is large, the monitoring cables 200 may be bundled to at least two wire ropes 122, so that the reliability of the monitoring cables 200 can be improved.

it will be appreciated that since the height of the gate 300 under test is much less than the height of the door well 400, there is still a large space between the top of the gate 300 under test and the top of the door well 400. If the supporting member 121 is not used to support the monitoring cable 200, when the gate 300 to be tested rises, the monitoring cable 200 will fall under the action of its own gravity, and then will interfere with the gate 300 to be tested, so that the monitoring cable 200 is easily damaged and blocked. Therefore, the supporting member 121 is disposed on the top of the gate 300 to be tested, and when the gate 300 to be tested rises, the supporting member 121 can always support the monitoring cable 200, so that the monitoring cable 200 at the supporting member 121 is in a vertical state, and cannot interfere with the gate 300 to be tested, thereby avoiding the damage of the monitoring cable 200.

The utility model discloses a cable protection device 100 protects monitoring cable 200 on being surveyed the gate 300 through gate door body vibration monitoring cable protection component 110, first mounting 111 is fixed in monitoring cable 200 by being surveyed gate 300, and adopt guard plate 112 to cover in monitoring cable 200, reduce the rivers impact force that monitoring cable 200 received, and simultaneously, protect monitoring cable 200 that is arranged in well 400 above being surveyed gate 300 through well monitoring cable protection component 120, when being surveyed gate 300 and open and close, the monitoring cable 200 in the lift drive well 400 goes up and down in step, and support monitoring cable 200 by support piece 121 and wire rope 122, avoid monitoring cable 200 to be dragged and take place to cut between the gate 300 by the survey and rub, realize monitoring cable 200's reliable protection, guarantee monitoring cable 200 intact.

Through the sectional protection of gate door body vibration monitoring cable protection component 110 and door well monitoring cable protection component 120 to monitoring cable 200, monitoring cable 200 is kept straight and not bear main stress state all the time in the process of opening and closing the gate to be tested, and goes up and down synchronously along with gate 300 to be tested, the problem that the monitoring cable is exposed in the adverse environment and is damaged easily in the current hydraulic engineering is effectively solved, the damage of monitoring cable 200 caused by high-speed water flow and strong wind in a large-amplitude swinging dragging is avoided, the normal operation of the gate is influenced by the jamming of monitoring cable 200 and gate 300 to be tested, the smooth implementation of the monitoring process and the reliability of monitoring data are ensured, the reliable monitoring of the operation state of a high-head flat gate is realized, the reliable operation of a high-head flat gate system is ensured, and the safe operation of a hydropower station is further ensured.

In one embodiment, the first fixing element 111 has a position-limiting portion and a fixing portion, the position-limiting portion has a position-limiting groove for accommodating the monitoring cable 200, and the fixing portion is used for fixing to the gate 300 to be tested. The fixing portion of the first fixing member 111 is used for fixing the first fixing member 111, so that the first fixing member 111 is reliably fixed on the gate 300 to be tested. Spacing portion is used for realizing that monitoring cable 200 is spacing, and after first mounting 111 was fixed in surveyed gate 300 through the fixed part, monitoring cable 200 can be restricted to the inner wall of spacing portion for monitoring cable 200 is fixed in surveyed gate 300, avoids taking place to rock by a wide margin.

In one embodiment, the number of the fixing portions is two, and the fixing portions are respectively disposed on two sides of the limiting portion. This ensures that the first fixing member 111 is reliably fixed to the gate 300 under test. Alternatively, the fixing portion may be fixed to the measured shutter 300 by welding, a screw fastener, or the like.

furthermore, the limiting groove is arc-shaped, fold line-shaped or polygonal. Of course, in other embodiments of the present invention, the cross-sectional shape of the limiting groove may also be a combination of a curved line and a straight line. Illustratively, the shape of the limiting member is an arc, and correspondingly, the shape of the first fixing member 111 is an Ω shape.

In an embodiment, the number of the first fixing elements 111 is multiple, and a plurality of the first fixing elements 111 are arranged along the direction of the monitoring cable 200. It can be understood that, since the monitoring cable 200 is arranged on the tested gate 300 along the height direction of the tested gate 300, correspondingly, the first fixing parts 111 are required to be arranged at intervals in the arrangement direction of the monitoring cable 200, so that the monitoring cable 200 at each position in the height direction of the tested gate 300 can be fixed by the fixing parts 111, and the monitoring cable 200 is prevented from shaking greatly due to the impact of high-speed water flow on the monitoring cable 200. And, a first preset interval exists between two adjacent first fixing pieces 111. Therefore, the first fixing piece 111 can be prevented from being too concentrated, the monitoring cable 200 can be reliably fixed, and meanwhile, the fixing steps are reduced; the first fixing piece 111 can be prevented from being too loose, the monitoring cable 200 is guaranteed to be in a straight state, and shaking of the monitoring cable 200 is avoided.

Further, the range of the first preset distance is 0.2m to 0.8 m. Preferably, the first predetermined distance is in a range of 0.5m to 0.6 m. It is understood that the sizes of the first preset intervals may be the same or different.

In one embodiment, the shielding plate 112 is made of stainless steel and is welded to the measured gate 300. The protection plate 112 covers the monitoring cable 200 along the direction of the monitoring cable 200, so that the monitoring cable 200 on the gate 300 to be tested is completely protected from the impact of high-speed water flow. Moreover, the protection plate 112 is fixed on the tested gate 300 in a welding mode, so that the protection plate 112 can be reliably fixed.

optionally, the thickness of the guard plate 112 ranges from 1.5mm to 6 mm. This ensures that the guard plate 112 resists impact forces and ensures reliable protection of the monitor cable 200. Preferably, the thickness of the protection plate 112 ranges from 2mm to 4 mm. Also, the shielding plate 112 is made of a steel plate.

It is understood that the specific dimensions of the first fixing member 111 and the protection plate 112 are determined according to the number of the monitoring cables 200 on the gate 300 to be tested, so as to ensure that all the monitoring cables 200 can be protected in the first fixing member 111 and the protection plate 112.

optionally, the cross-sectional shape of the guard plate 112 is U-shaped. The U-shaped shield plate 112 covers the monitoring cable 200, and the U-shaped groove of the shield plate 112 is used for accommodating the monitoring cable 200. Of course, in other embodiments of the present invention, the cross-sectional shape of the protection plate 112 may also be other structures capable of accommodating and protecting the monitoring cable 200.

In one embodiment, the supporting member 121 is a supporting plate or a supporting rod, and the door well monitoring cable protection assembly 120 further includes a second fixing member 124, and the second fixing member 124 is used for fixing the monitoring cable 200 to the supporting member 121. At this time, the monitoring cable 200 above the gate 300 to be tested is fixed on the supporting member 121 by the second fixing member 124, so that the monitoring cable 200 can be kept straight and not mainly stressed.

It can be understood that, when the supporting member 121 is a supporting rod or a supporting plate, the second fixing member 124 can be sleeved outside the supporting member 121 to fix the monitoring cable 200; the monitoring cable 200 may be fixed to one side of the supporting member 121. Of course, in other embodiments of the present invention, the supporting member 121 is a supporting frame, the supporting frame has an accommodating space, and the monitoring cable 200 is located in the accommodating space.

in one embodiment, the height of the supporting member 121 is 1/4-3/4 of the height of the detected gate 300, and/or the height of the supporting member 121 is greater than or equal to 1.5 m. This ensures that the support member 121 reliably supports the monitoring cable 200, and prevents the monitoring cable 200 from interfering with the gate 300 to be tested. Illustratively, the support 121 is made of a steel pipe, and is a steel pipe or a square pipe. Furthermore, the supporting member 121 has strength and rigidity to resist the water flow of the door well 400 and the pulling of strong wind without deformation. Preferably, the height of the support 121 is half of the height of the gate 300 to be tested and is not less than 2.0 m.

in one embodiment, the second fixing member 124 is a clip, or the structure of the second fixing member 124 is the same as that of the first fixing member 111. When the second fixing member 124 is a clamp, the clamp can be directly sleeved on the supporting member 121, so as to ensure that the monitoring cable 200 is reliably fixed. When the structure of the second fixing member 124 is the same as that of the first fixing member 111, the second fixing member 124 fixes the monitoring cable 200 to the side of the support member 121. It can be understood that, since the second fixing element 124 and the first fixing element 111 have the same structure, the description thereof is omitted here.

In one embodiment, the number of the second fixing members 124 is plural, and a plurality of the second fixing members 124 are arranged along the direction of the monitoring cable 200. It can be understood that the supporting member 121 is disposed along the height direction, and correspondingly, the second fixing members 124 need to be disposed at intervals in the disposition direction of the monitoring cables 200, so that the monitoring cables 200 at various positions in the height direction of the supporting member 121 can be fixed by the monitoring cables 200, and the monitoring cables 200 adjacent to the gate 300 to be tested are prevented from being blocked with the gate 300 to be tested. And, a second preset distance exists between two adjacent second fixing pieces 124. Therefore, the second fixing piece 124 can be prevented from being too concentrated, the monitoring cable 200 can be reliably fixed, and the fixing steps are reduced; the second fixing part 124 can be prevented from being too loose, the monitoring cable 200 is ensured to be in a straight state, and the monitoring cable 200 is prevented from shaking under the action of high-speed water flow and strong wind.

Further, the second preset distance ranges from 0.2m to 0.8 m. Preferably, the second predetermined distance is in a range of 0.5m to 0.6 m. It is understood that the sizes of the second preset intervals may be the same or different.

In an embodiment, the door well monitoring cable protection assembly 120 further includes a third fixing member 125, the lifting member includes a block 123 capable of driving the steel wire rope 122 to lift, one end of the steel wire rope 122 is connected to the supporting member 121 at the top of the detected door 300, the other end of the steel wire rope 122 is connected to a block hook of the block 123, and the monitoring cable 200 is further fixed to the steel wire rope 122 through the third fixing member 125. Of course, in other embodiments of the present invention, the lifting member may also be another structure capable of rolling the steel wire rope 122.

one end of the steel wire rope 122 is connected with a hoist hook of the hoist 123, and the other end of the steel wire rope 122 is connected with the top of the support member 121. In addition, the monitoring cable 200 at the top of the supporting member 121 is fixed to the steel wire rope 122 through the third fixing member 125, so that the monitoring cable 200 is prevented from shaking and being pulled to be damaged by a large extent under the action of strong wind. Like this, when being surveyed gate 300 and opening and close, the calabash couple also goes up and down in step for monitoring cable 200 remains straight state all the time, avoids monitoring cable 200 to damage.

in one embodiment, the third fixing element 125 is a clip, or the structure of the third fixing element 125 is the same as that of the first fixing element 111. When the third fixing element 125 is a clamp, the clamp can be directly sleeved on the steel wire 122, so as to ensure that the monitoring cable 200 is reliably fixed. When the structure of the third fixing element 125 is the same as that of the first fixing element 111, the third fixing element 125 can be fastened to the steel wire rope 122, and at this time, the two fixing elements can be connected to fix the monitoring cable 200. It can be understood that, since the third fixing element 125 and the first fixing element 111 have the same structure, the description thereof is omitted here.

optionally, the size of the third fixing element 125 should match the diameter of the steel cable 122 to ensure that the third fixing element 125 can be reliably fixed to the steel cable 122. Optionally, the number of the third fixing members 125 is plural, and a plurality of the third fixing members 125 are arranged along the running direction of the monitoring cable 200. It can be understood that, wire rope 122 sets up along the direction of height, and is corresponding, need set up third mounting 125 at the interval on the direction of arrangement of monitoring cable 200, like this, can all can be fixed by monitoring cable 200 at the monitoring cable 200 of each position on the wire rope 122 direction of height, avoids wind to strike monitoring cable 200 and leads to monitoring cable 200 to rock by a wide margin, can also realize wire rope 122 and drive monitoring cable 200 synchronous lifting simultaneously. And, a third preset distance exists between two adjacent third fixing pieces 125. Thus, the third fixing member 125 can be prevented from being too concentrated, and the fixing steps can be reduced while the monitoring cable 200 is reliably fixed; the third fixing member 125 can be prevented from being too loose, so that the monitoring cable 200 is ensured to be in a straight state, and the monitoring cable 200 is prevented from shaking under the action of strong wind.

further, the third preset pitch ranges from 0.5m to 1.5 m. Preferably, the third predetermined distance is in a range of 0.8m to 1.2 m. It is understood that the size of each third predetermined distance may be the same or different. The monitoring cable 200 is fixed to the wire rope 122 through the third fixing member 125 at a third predetermined interval.

In one embodiment, the hoist 123 is an electric hoist or a hand hoist. The lifting distance of the hoist 123 is matched with the opening and closing height of the detected gate 300, and the bearing weight of the hoist 123 is not less than twice of the total weight of the monitoring cable 200 and the steel wire rope 122. Optionally, the cable protection device 100 further comprises a hoist support 126, and the hoist support 126 is disposed on the ground at the top of the door well 400 for supporting the hoist 123. The hoist support frame 126 is fixed in a welding mode to ensure that the hoist support frame is fixed firmly, can bear the dead weight of the monitoring cable 200 and the steel wire rope 122, and can bear certain pulling force. It will be appreciated that the position of the hoist support bracket 126 is such as to avoid the hoist device controlling the gate 300 being tested and to correspond to the position of the support 121 below the door shaft 400. Optionally, the hoist support bracket 126 is formed by welding i-steel or square steel.

The hoist 123 is fixed to the hoist support bracket 126 with the hoist hook positioned to align with the position of the support 121 in the door well 400. When the measured gate 300 is used for overhauling the platform, the steel wire rope 122 is firmly fixed with the supporting piece 121 at the top of the measured gate 300, after the monitoring cable 200 is fixed with the steel wire rope 122, the measured gate 300 and the monitoring cable 200 are synchronously lowered to the full-closed position of the measured gate 300, the position of the hoist hook is adjusted to gradually straighten the steel wire rope 122, and the monitoring cable 200 is enabled to be kept in a straight state in the door well 400. After the monitoring cable 200 is led out of the door well 400 and is connected to a data acquisition and analysis system of an observation room, the monitoring cable 200 is fixed on the observation platform 600 in a segmented mode. And then a vibration monitoring experiment of the opening and closing process of the gate 300 to be tested can be carried out.

the utility model discloses a when cable protection device 100 arranged, promoted to the maintenance platform by survey gate 300, then installed the measuring instrument 500 of vibration on being surveyed gate 300, arranged measuring instrument 500's signal transmission monitoring cable 200 according to being surveyed gate 300's structural feature. The first fixing member 111 is welded to the gate 300 to be tested at a proper interval and at a position where the monitoring cables 200 are arranged, so that the monitoring cables 200 are firmly fixed. The monitoring cable 200 vibrating the tested gate 300 is straightened from the bottom of the tested gate 300 to the supporting member 121 at the top of the tested gate 300, and after being fixed firmly with the first fixing member 111, the protection plate 112 is welded on the tested gate 300, and the protection plate 112 completely covers the monitoring cable 200 and the first fixing member 111 inside. The monitoring cable 200 at the top of the gate 300 to be tested is fixed firmly with the support member 121 by the second fixing member 124, then the monitoring cable 200 is fixed firmly with the steel wire rope 122 in a segmented manner by the third fixing member 125, and the other end of the cable is led to the data acquisition and analysis system of the observation platform 600. The hoist 123 is fixed on the hoist support frame 126. The gate 300 to be tested is gradually lowered to the full-closed position from the maintenance platform, the other end of the steel wire rope 122 fixed with the monitoring cable 200 is connected with the hoist 123 and is firmly fixed, and the hook position of the hoist 123 is adjusted, so that the steel wire rope 122 and the monitoring cable 200 between the supporting piece 121 at the top of the gate 300 to be tested and the hook of the hoist 123 are kept straight.

Specifically, the measured gate 300 is opened to the service platform position at the upper part of the gate shaft 400. The measuring instrument 500 is arranged at a key position of the measured gate 300. Alternatively, the measuring instrument 500 is arranged on one side of the central symmetry line of the measured shutter 300 as much as possible. And calculating the lengths of the monitoring cable 200 and the steel wire rope 122 according to the maximum distance from the measuring point position to the observation platform 600 when the measured gate 300 is completely closed. Firstly, the monitoring cables 200 of each measuring instrument 500 are folded from the measuring point position to the supporting piece 121 close to the top of the measured gate 300 to be straight, fixed well by the first fixing piece 111, and then the protection plate 112 is welded on the measured gate 300, so that the monitoring cables 200 on the measured gate 300 are integrally covered inside the protection plate 112, and the monitoring cables 200 are prevented from being directly washed and pulled by high-speed water flow.

the cables are then grouped at the service platform, typically about 5-10 cables in a group, based on the number and length of the monitoring cables 200. One end of the steel wire rope 122 is connected and fixed firmly with the support member 121 on the top of the measured gate 300. And then, after the grouped monitoring cables 200 are bound by an aid, the monitoring cables 200 are fixedly and firmly fixed with the steel wire rope 122 section by section from the top of the supporting member 121 through the third fixing member 125, and the third fixing member 125 on the steel wire rope 122 is used for preventing the monitoring cables 200 from sliding relatively after being fixed with the steel wire rope 122 and firmly fixing the monitoring cables 200. And the other end of the steel wire rope 122 is firmly connected with the hook of the hoist 123 on the hoist support frame 126. Finally, after the monitoring cable 200 and the steel wire rope 122 are orderly wound, the detected gate 300 is gradually closed to a completely closed state. The lengths of the monitoring cable 200 and the steel wire rope 122 are kept synchronous with the relative height of the detected gate 300 in the closing process of the detected gate 300, and the steel wire rope 122 is prevented from being pulled in the closing process of the detected gate 300. After the tested gate 300 is completely closed, the relative position of the hook of the hoist 123 is adjusted, so that the steel wire rope 122 and the monitoring cable 200 are kept straight and slightly stressed in the gate well 400, and meanwhile, the height that the hook of the hoist 123 can be lifted is not less than the test stroke of the tested gate 300. Meanwhile, after the monitoring cable 200 in the gate well 400 is led to the data acquisition and analysis system of the observation platform 600, the vibration monitoring work of the tested gate 300 can be started.

When the tested gate 300 is opened, the hoist 123 lifts the steel wire rope 122 and the monitoring cable 200 synchronously along with the opening of the tested gate 300. When the tested gate 300 is in a closing process test, the hoist 123 synchronously descends the steel wire rope 122 and the monitoring cable 200 along with the closing of the tested gate 300. The hook of the hoist 123 keeps synchronously lifting the steel wire rope 122 and the monitoring cable 200 in the opening and closing process of the whole detected gate 300, so that the steel wire rope 122 and the monitoring cable 200 are always kept in a straight state and the stress is mainly borne by the steel wire rope 122, the large swing and pulling damage of the monitoring cable 200 caused by high-speed water flow and strong wind in the gate well 400 and the blockage of the detected gate 300 in a gate slot can be effectively avoided, and the smooth implementation of the monitoring process, the reliability of monitoring data and the normal opening and closing of the detected gate 300 are ensured.

The utility model discloses a cable protection device 100 is used for carrying out prototype vibration monitoring to the high-head horizontal plate gate system of power station. After the measured gate 300 is provided with the vibration measuring instrument 500, the data acquisition and analysis system is accessed by transmitting the measuring signal to the observation platform 600 at the upper part of the gate shaft 400 by using the monitoring cable 200. Whether the vibration signal of the measured gate 300 in the opening and closing process can be normally and effectively collected, recorded and analyzed, whether the monitoring cable 200 can normally work plays an important role, and meanwhile, the operation safety analysis of the measured gate 300 plays an important role. Adopt the utility model discloses a cable protection device 100 can play fine guard action to monitoring cable 200 on the high-head flat gate system, avoids monitoring cable 200's destruction and leading to the fact the card to hinder to being surveyed gate 300 in the monitoring process, provides reliable prototype monitoring data for high-head flat gate system, ensures the operation safety of gate.

the utility model also provides a high water head plate gate vibration monitoring system, including being surveyed gate 300, measuring instrument 500, monitoring cable 200, data acquisition analytic system and the cable protection device 100 in any of the above-mentioned embodiments, measuring instrument 500 sets up in being surveyed gate 300 to be connected to observation platform 600's data acquisition analytic system through the monitoring cable, cable protection device 100 is applied to by the door body of survey gate 300 and door well 400, is used for protecting monitoring cable 200. The damage of the monitoring cable 200 in the monitoring process and the clamping of the detected gate 300 are avoided, reliable monitoring data are provided for vibration monitoring in the operation process of the high-head flat gate, and the operation safety of the gate is ensured.

The utility model also provides a cable protection device's arrangement method, be applied to foretell high head plate gate vibration monitoring system's cable protection device 100, this arrangement method includes following step:

The protection steps of the monitoring cable 200 of the gate 300 to be tested are as follows:

Opening the tested gate 300 to the position of an overhaul platform at the upper part of the gate well 400, and arranging a plurality of measuring instruments 500 at key positions of the tested gate 300;

Calculating the length of the measuring point monitoring cable 200 and the length of the steel wire rope 122 according to the maximum distance from the measuring point position to the observation platform 600 when the measured gate 300 is completely closed;

The monitoring cables 200 of the measuring instruments 500 are folded and straightened from the measuring point positions to the supporting piece at the top of the measured gate 300, and are respectively fixed from the bottom to the top of the measured gate 300 by a plurality of first fixing pieces 111;

Covering the protection plate 112 on the monitoring cable 200;

door well 400 monitoring cable 200 protection step:

Connecting one end of the steel wire rope 122 with a support part 121 at the top of the detected gate 300;

After being bound, the monitoring cable 200 is fixed to the supporting member 121 section by section through the second fixing member 124, and then fixed to the steel wire rope 122 through the third fixing member 125;

And gradually lowering the tested gate 300 to a completely closed state from the maintenance platform, and simultaneously, synchronously lowering the monitoring cable 200 and the steel wire rope 122 and the tested gate 300. When the gate 300 to be tested is completely closed, the position of the hook of the hoist 123 is adjusted to enable the hook to have a corresponding stroke in the opening and closing process of the gate 300 to be tested, and the steel wire rope 123 is kept straight basically.

When the tested gate 300 is opened, the hoist 123 lifts the steel wire rope 122 and the monitoring cable 200 synchronously along with the opening of the tested gate 300, and when the tested gate 300 is closed, the hoist 123 descends the steel wire rope 122 and the monitoring cable 200 synchronously along with the closing of the tested gate 300, so that the steel wire rope 122 and the monitoring cable 200 are always kept in a straight state, and the steel wire rope 122 mainly bears corresponding stress.

The utility model discloses a when cable protection device 100 arranged, will be surveyed gate 300 and open the maintenance platform position to door well 400 upper portion. The measuring instrument 500 is arranged at a key position of the measured gate 300. Alternatively, the measuring instrument 500 is arranged on one side of the central symmetry line of the measured shutter 300 as much as possible. And calculating the lengths of the monitoring cable 200 and the steel wire rope 122 according to the maximum distance from the measuring point position to the observation platform 600 when the measured gate 300 is completely closed. Firstly, the monitoring cables 200 of each measuring instrument 500 are folded from the measuring point position to the supporting piece 121 at the top of the measured gate 300 to be straight, and fixed well by the first fixing piece 111, and finally, the monitoring cables 200 on the measured gate 300 are integrally covered in the protection plate 112, so that the monitoring cables 200 are prevented from being directly washed and pulled by high-speed water flow.

the cables are then grouped at the service platform, typically about 5-10 cables in a group, based on the number and length of the monitoring cables 200. One end of the steel wire rope 122 is firstly connected and fixed firmly with the support member 121 on the top of the tested gate 300 through the second fixing member 124. And then, after the grouped monitoring cables 200 are bound by using a binding tape, the monitoring cables 200 are fixedly and firmly fixed with the steel wire rope 122 section by section from the top position of the supporting member 121 through the third fixing member 125, and the third fixing member 125 on the steel wire rope 122 is used for preventing the monitoring cables 200 from sliding relatively after being fixed with the steel wire rope 122 and firmly fixing the monitoring cables 200. After the monitoring cable 200 and the steel wire rope 122 are fixed, the other end of the steel wire rope 122 is firmly connected with the hook of the hoist 123 on the hoist support frame 126. Finally, after the monitoring cable 200 and the steel wire rope 122 are orderly wound, the detected gate 300 is gradually closed to a completely closed state. The lengths of the monitoring cable 200 and the steel wire rope 122 are kept synchronous with the relative height of the detected gate 300 in the closing process of the detected gate 300, and the steel wire rope 122 is prevented from being pulled in the closing process of the detected gate 300. After the tested gate 300 is completely closed, the relative position of the hook of the hoist 123 is adjusted, so that the steel wire rope 122 and the monitoring cable 200 are kept straight and slightly stressed in the gate well 400, and meanwhile, the height that the hook of the hoist 123 can be lifted is not less than the test stroke of the tested gate 300. Meanwhile, the monitoring cable 200 in the door well 400 is led to the observation platform 600, and vibration monitoring work of the measured door 300 can be started after the measuring instrument 500 is connected.

when the tested gate 300 is opened, the hoist 123 lifts the steel wire rope 122 and the monitoring cable 200 synchronously along with the opening of the tested gate 300. When the tested gate 300 is in a closing process test, the hoist 123 synchronously descends the steel wire rope 122 and the monitoring cable 200 along with the closing of the tested gate 300. The hook of the hoist 123 keeps synchronously lifting the steel wire rope 122 and the monitoring cable 200 in the opening and closing process of the whole gate 300 to be detected, so that the steel wire rope 122 and the monitoring cable 200 are always kept in a straight state, the steel wire rope 122 mainly bears corresponding stress, the large swing and pull of the monitoring cable 200 caused by high-speed water flow and strong wind of the gate well 400 and the blocking of the monitoring cable 200 and the gate 300 to be detected in a gate slot can be effectively avoided, and the smooth implementation of the monitoring process and the reliability of monitoring data are ensured.

The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a high head plate gate vibration monitoring system's cable protection device which characterized in that installs in high head plate gate vibration monitoring system, cable protection device includes:

2. The cable protection device of claim 1, wherein the first fixing member has a limiting portion and a fixing portion, the limiting portion has a limiting groove for accommodating the monitoring cable, and the fixing portion is fixed to the gate to be tested;

The limiting groove is arc-shaped, fold-line-shaped or polygonal.

3. the cable protection device according to claim 2, wherein the number of the first fixing pieces is multiple, the multiple first fixing pieces are arranged along the direction of the monitoring cable, and a first preset distance exists between every two adjacent first fixing pieces;

the range of the first preset distance is 0.2 m-0.8 m.

4. The cable protection device according to any one of claims 2 to 3, wherein the shielding plate is made of stainless steel and is welded to the gate under test;

The thickness range of the protective plate is 1.5 mm-6 mm.

5. the cable protection device of any one of claims 2 to 3, wherein the support member is a support plate or a support rod, and the door well monitoring cable protection assembly further comprises a second fixing member for fixing the monitoring cable at a position near the top of the gate to be tested to the support member;

6. The cable protection device of claim 5, wherein the support member has a height of 1/4-3/4 of the measured gate height;

and/or the height of the support member is greater than or equal to 1.5 m.

7. the cable protection device of claim 5, wherein the second fixing member is a clip, or the second fixing member has the same structure as the first fixing member;

The range of the second preset distance is 0.2 m-0.8 m.

8. The cable protection device according to any one of claims 2 to 3, wherein the door well monitoring cable protection assembly further comprises a third fixing member, the lifting member comprises a hoist capable of driving a steel wire rope to lift, one end of the steel wire rope is connected with the supporting member at the top of the tested gate, the other end of the steel wire rope is connected with a hoist hook of the hoist, and the monitoring cable is further fixed on the steel wire rope through the third fixing member.

9. The cable protection device according to claim 8, wherein the number of the third fixing elements is plural, the plural third fixing elements are arranged along the running direction of the monitoring cable, and a third preset distance exists between two adjacent third fixing elements;

10. A high head flat gate vibration monitoring system, comprising a gate to be tested, a measuring instrument, a monitoring cable, a data acquisition and analysis system and the cable protection device as claimed in any one of claims 1 to 9, wherein the measuring instrument is arranged on the gate to be tested and transmits a vibration signal to an observation platform through the monitoring cable, and the cable protection device is arranged on the gate to be tested and is used for protecting the monitoring cable.