Hydropower station water inlet stoplog gate state monitoring system
By setting up a counting mechanism and sensing components in the monitoring system for the status of the stacked beam gate in a hydropower station, the problems of low efficiency, easy misjudgment, and poor real-time performance of traditional monitoring methods have been solved. This has enabled accurate recording and real-time monitoring of the status of the stacked beam gate, improving the reliability and monitoring efficiency of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional methods for monitoring the status of stacked beam gates are inefficient, prone to misjudgment, have poor real-time performance, and lack reliability. In particular, manual inspection is difficult and lacks real-time data feedback in large hydropower stations.
By setting a counting mechanism at the top of the door slot, and using the triggering component to contact the side of the stacked beam door to trigger the sensing component, the number of times the stacked beam door is hoisted out/in is recorded. Combined with the local control unit, the host computer communication server, the remote control console, and the human-machine interface screen, automated monitoring is achieved.
It enables accurate recording and real-time monitoring of the status of the stacked beam door, improving monitoring efficiency, avoiding missed detections, ensuring system reliability, and reducing the risk of mechanical jamming.
Smart Images
Figure CN224020276U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of hydroelectric generation, specifically, a water intake stoplog gate state monitoring system of hydropower station. BACKGROUND
[0002] In the operation process of the hydropower station, the stoplog gate as an important hydraulic engineering equipment is mainly used for controlling the water flow of the dam intake. It is composed of a plurality of stoplog small doors which are stacked along the track groove of the door groove. In actual operation, the state of the stoplog gate, such as the lifting in / out state and the lifting in / out quantity of each stoplog small door, plays a crucial role in the safe and stable operation of the hydropower station.
[0003] The traditional stoplog gate state monitoring method mostly relies on manual inspection. This method has obvious defects, not only low efficiency, but also easy to misjudge. Especially in some large hydropower stations, due to the large number of stoplog gates, the difficulty and workload of manual inspection are very large. At the same time, the traditional method lacks real-time data feedback, which makes it difficult for the staff to understand the changes of the stoplog gate state in time and unable to make corresponding decisions quickly.
[0004] At present, the existing automatic monitoring technology mainly includes video monitoring. However, these technologies also have their own shortcomings. Video monitoring requires complex image processing algorithms, not only high cost, but also poor monitoring effect under low light conditions.
[0005] The purpose of the present application is to provide a stoplog gate state monitoring system of hydropower station, which aims to solve the problems of low efficiency, easy misjudgment, poor real-time performance and insufficient reliability in the prior art. CONTENT OF THE UTILITY MODEL
[0006] The purpose of the utility model is to provide a water intake stoplog gate state monitoring system of hydropower station, which can accurately record the number of times that the stoplog small door in each track groove is lifted out or lifted in by triggering the inductive component through the contact between the trigger component and the side edge of the stoplog small door, and provide accurate stoplog gate state information and stoplog gate lifting in / out quantity information for the operator, which helps to master the real-time state of the stoplog gate, thereby solving the technical problems of low efficiency, easy misjudgment, poor real-time performance and insufficient reliability in the prior art.
[0007] The utility model realizes the following technical scheme: a stoplog gate state monitoring system of hydropower station, the stoplog gate includes a door groove arranged at the dam intake, the door groove is provided with a plurality of track grooves extending along the height direction on the opposite two bottom surfaces, a stoplog small door is arranged in each of the plurality of track grooves one by one, and the system comprises a counting mechanism and a local control unit.
[0008] The counting mechanism is arranged on the top of the door slot and is composed of a trigger member and a sensing member, the sensing member is electrically connected with the local control unit, one end of the trigger member extends into the track slot, and the trigger member is configured to contact the side edge of the folding gate when the folding gate is lifted out of / into the track slot and trigger the sensing member.
[0009] According to a preferred embodiment, the system further comprises a host computer communication server and a remote console, the first signal output end of the local control unit is in communication connection with the host computer communication server, and the host computer communication server is in communication connection with the remote console.
[0010] According to a preferred embodiment, the system further comprises a rack server and a human-computer interaction screen, the second signal output end of the local control unit is in communication connection with the rack server, and the rack server is in communication connection with the human-computer interaction screen.
[0011] According to a preferred embodiment, the second signal output end of the local control unit is in communication connection with the rack server through an RS232 interface, and the rack server is in communication connection with the human-computer interaction screen by adopting a MOBUS protocol.
[0012] According to a preferred embodiment, the counting mechanism is provided with multiple groups, and the trigger members of the multiple groups of counting mechanisms correspond to one track slot respectively.
[0013] According to a preferred embodiment, the trigger member is composed of a trigger plate and a metal sheet, and the sensing member is a proximity switch.
[0014] According to a preferred embodiment, a support frame is arranged on the side of the counting mechanism away from the door slot, the support frame is arranged in extension along the width direction of the door slot, the first end of the trigger plate is in rotary connection with the support frame, the second end of the trigger plate extends into the track slot, the proximity switch is arranged above the support frame, and the metal sheet is arranged on the top of the trigger plate.
[0015] According to a preferred embodiment, a protective cover with a U-shaped longitudinal section is arranged on the side of the counting mechanism away from the door slot, the opening of the protective cover faces the door slot, and the support frame is arranged in the opening of the protective cover.
[0016] According to a preferred embodiment, the proximity switch is arranged on the top of the protective cover.
[0017] According to a preferred embodiment, a torsional spring is correspondingly sleeved on the support frame corresponding to each counting mechanism, the first free end of the torsional spring is fixedly connected with the top of the trigger plate, and the second free end of the torsional spring is fixedly connected with the protective cover.
[0018] The technical scheme of the water inlet gate state monitoring system of the hydropower station has at least the following advantages and beneficial effects: (1) the utility model discloses a counting mechanism is arranged at the top of the door groove, the contact between the trigger component and the side of the small gate is used to trigger the sensing component, the number of times that the small gate in each track groove is hoisted out or hoisted in can be accurately recorded, accurate small gate state information and small gate hoisting / hoisting quantity information are provided for the operator, and the real-time state of the small gate can be mastered; (2) compared with traditional manual inspection, the scheme provided by the utility model can further improve the monitoring efficiency by automatically transmitting the small gate state to the local control unit; (3) a plurality of counting mechanisms correspond to track grooves one by one, so that the state of each small gate can be independently monitored, missing inspection is avoided, and accurate corresponding detection is realized; in addition, the failure of a single counting mechanism will not affect the monitoring of other track grooves, and the system reliability is improved; (4) the setting of the torsional spring can realize the automatic reset of the trigger plate, so that the trigger plate can be automatically reset after the small gate passes, and the reliability of repeated triggering is ensured; in addition, the setting of the torsional spring can also reduce mechanical jamming, reduce the risk of trigger plate jamming, ensure stable triggering, and accurately obtain the state of the small gate hoisting / hoisting each time. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 The structural block diagram of the water inlet gate state monitoring system of the hydropower station provided by the utility model embodiment 1 is provided.
[0020] Figure 2 The counting mechanism layout schematic diagram provided by the utility model embodiment 1 is provided.
[0021] Figure 3 The structural schematic diagram of the counting mechanism provided by the utility model embodiment 2 is provided.
[0022] Fig. 100-Door groove, 110-Track groove, 120-Small gate, 200-Counting mechanism, 210-Trigger component, 211-Trigger plate, 212-Metal sheet, 220-Sensing component, 230-Torsional spring, 300-Support frame, 400-Protection cover, 500-Local control unit, 600-Rack server, 700-Human-computer interaction screen, 800-Upper computer communication server, 900-Remote control console. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings can be arranged and designed in various different configurations.
[0024] Embodiment 1
[0025] The embodiment provides a water power station stop log gate state monitoring system, referring to Figure 2 As shown in the figure, the stop log gate comprises a gate groove 100 arranged at a dam body water inlet, opposite two bottom surfaces of the gate groove 100 are provided with a plurality of track grooves 110 extending along the height direction, a plurality of stop log small doors 120 are arranged in the track grooves 110 one by one, and the top of each stop log small door 120 is connected with a hanging beam.
[0026] It should be noted that the plurality of groups of independent stop log small doors 120 at the water inlet vertically slide along the respective track grooves 110, so that the water level regulation of the reservoir can be realized. In some embodiments, the normal storage water level of the water power station reservoir is 1880 m, the dead water level is 1800 m, the water inlet adopts a layered water taking stop log gate, three stop log small doors 120 are arranged, the stop log gate is dispatched according to the water level drawdown condition, so that the bank tower type water taking design can take the upper layer water under different working conditions, and the operation requirements of the stop log gate are as follows: when the water level of the reservoir is higher than 1835 m, the stop log gate is integrally blocked; when the water level of the reservoir is between 1835 m and 1828 m, the first stop log small door 7 m high is hung up; when the water level of the reservoir is between 1828 m and 1814 m, the second stop log small door 14 m high is continuously hung up; and when the water level of the reservoir is below 1814 m, all the three stop log small doors are hung up, which will not be described in detail here.
[0027] In the embodiment, referring to Figure 1As shown, the water power station stop log state monitoring system comprises a counting mechanism 200, a local control unit 500, an upper computer communication server 800, a remote control console 900, a rack server 600 and a man-machine interaction screen 700. The counting mechanism 200 is used to count the lifting in / out of the stop log small door 120, obtain the lifting in / out quantity data of the stop log small door 120, and then determine the state of the entire stop log door, realize the automatic recording of the stop log door state, and send the information to the local control unit 500. In an embodiment of the present embodiment, the local control unit 500 adopts Quantum series PLC as the data acquisition and control unit of the dam site, collects the relevant data of the dam through the counting mechanism 200, processes and controls the data, and sends the data to the local control screen for display, so as to facilitate the local personnel to check the stop log door state and quantity when operating the stop log door. In addition, the local control unit 500 is in communication connection with the upper computer communication server 800, and is used to realize the communication between the remote control console 900 through the upper computer communication server 800, send the collected data to the remote control console 900, realize the data interaction and remote monitoring. In the present embodiment, the local control unit 500 is also in communication connection with the rack server 600 through the RS232 interface, and is used to establish the communication between the man-machine interaction screen 700 through the rack server 600, and send the collected data to the man-machine interaction screen 700. In some embodiments, the rack server 600 is composed of a power module, a central processor module, a digital quantity input module, an analog quantity input module and a digital quantity output module. The power module is used to provide stable power supply for the entire rack server 600. The central processor module is the core of the entire rack server 600, and is used to process various logic control programs, operate and process the input signals, and output control instructions. The digital quantity input module is used to collect the digital quantity input signals of external devices. The analog quantity input module is used to collect the analog quantity input signals of external devices. The digital quantity output module is used to output digital quantity signals, control the start / stop of external devices, and send the stop log state data after analog-digital conversion to the man-machine interaction screen 700 through the MODBUS protocol for display.
[0028] In some embodiments of the present embodiment, the counting mechanism 200 is arranged at the top of the door groove 100 and is composed of a trigger member 210 and a sensing member 220. The sensing member 220 is electrically connected with the local control unit 500. One end of the trigger member 210 extends into the track groove 110. The trigger member 210 is configured to contact the side edge of the stop log small door 120 and trigger the sensing member 220 when the stop log small door 120 corresponding to the trigger member 210 in the track groove 110 is lifted out / in.
[0029] Specifically, in this embodiment, the sensing component 220 is triggered by the contact between the triggering component 210 and the side of the stacked beam door 120. This can accurately record the number of times the stacked beam door 120 is hoisted out or hoisted into each track groove 110, providing operators with accurate stacked beam door status information and stacked beam door hoisting / hoisting quantity information, which helps to grasp the real-time status of the stacked beam door. Compared with traditional manual inspection, the solution provided in this embodiment can further improve monitoring efficiency by automatically transmitting the status of the stacked beam door 120 to the local control unit 500.
[0030] Example 2
[0031] This embodiment further explains the structure of the counting mechanism 200 based on the technical solution provided in Embodiment 1:
[0032] In some implementations, see Figure 3 As shown, the counting mechanism 200 is provided in multiple sets, and the triggering components 210 of each set of the counting mechanism 200 are respectively set to a track groove 110. Specifically, by having multiple sets of counting mechanisms 200 correspond one-to-one with the track grooves 110, it can be ensured that the status of each stacked beam door 120 is monitored independently, avoiding missed detections and achieving accurate corresponding detection; in addition, the failure of a single set of counting mechanisms 200 will not affect the monitoring of other track grooves 110, improving system reliability; it should be noted that redundant counting mechanisms 200 can be set for each track groove 110, for example, two sets of counting mechanisms 200, to further improve system reliability.
[0033] Specifically, in this embodiment, the triggering component 210 consists of a trigger plate 211 and a metal sheet 212, and the sensing component 220 is a proximity switch. Specifically, the method of stabilizing the trigger signal using the principle of electromagnetic induction has the advantage of strong anti-interference capability; furthermore, by employing the combination of the trigger plate 211, the metal sheet 212, and the proximity switch, compared to methods such as image recognition for monitoring the status of the stacked beam door 120, it has lower cost and is easier to maintain.
[0034] Furthermore, a support frame 300 is mounted on the side of the counting mechanism 200 facing away from the door slot 100. The support frame 300 extends along the width direction of the door slot 100 to facilitate the unified deployment of multiple sets of counting mechanisms 200. In this embodiment, the first end of the trigger plate 211 is rotatably connected to the support frame 300, and the support frame 300 provides a rotation fulcrum for the trigger plate 211 to ensure stable operation of the trigger plate 211. The second end of the trigger plate 211 extends into the track slot 110, and the trigger plate 211 contacts the stacked beam door 120 to drive the metal piece 212 closer to the proximity switch. Furthermore, the proximity switch is located above the support frame 300, and the metal piece 212 is located on top of the trigger plate 211, so that the positions of the proximity switch and the metal piece 212 are matched to improve the sensing accuracy.
[0035] Further, the counting mechanism 200 is provided with a protection cover 400 with a longitudinal section in U shape on the side opposite to the door slot 100, the opening of the protection cover 400 is arranged towards the door slot 100, the support frame 300 is arranged in the opening of the protection cover 400, and the proximity switch is arranged on the top of the protection cover 400. Specifically, the arrangement of the protection cover 400 can protect the counting mechanism 200 and does not affect the action of the triggering member 210.
[0036] Further, the support frame 300 is correspondingly provided with a torsion spring 230 corresponding to each counting mechanism 200, the first free end of the torsion spring 230 is fixedly connected with the top of the triggering plate 211, and the second free end of the torsion spring 230 is fixedly connected with the protection cover 400. Specifically, the arrangement of the torsion spring 230 can realize the automatic reset of the triggering plate 211, so that the triggering plate 211 can be automatically reset after the passage of the stop beam door 120, and the reliability of repeated triggering is ensured; in addition, the arrangement of the torsion spring 230 can also reduce the mechanical jamming and reduce the risk of the triggering plate 211 being stuck, so that the triggering can be stable and the state of the stop beam door 120 being hoisted in / out each time can be accurately acquired.
[0037] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A monitoring system for the status of a stacked beam gate in a hydropower station, wherein the stacked beam gate includes a gate slot (100) disposed at the water inlet of the dam body, and multiple track slots (110) extending along its height direction are provided on the opposite bottom surfaces of the gate slot (100), and stacked beam gates (120) are correspondingly provided in each of the multiple track slots (110), characterized in that, The system includes a counting mechanism (200) and a local control unit (500); The counting mechanism (200) is located at the top of the door slot (100) and consists of a triggering member (210) and a sensing member (220). The sensing member (220) is electrically connected to the local control unit (500). One end of the triggering member (210) extends into the track slot (110). The triggering member (210) is configured to contact the side of the stacked beam door (120) and trigger the sensing member (220) when the stacked beam door (120) in the track slot (110) is hoisted out / hoisted in.
2. The hydropower station stacked beam gate status monitoring system as described in claim 1, characterized in that, The system also includes a host computer communication server (800) and a remote control console (900). The first signal output terminal of the local control unit (500) is connected to the host computer communication server (800), and the host computer communication server (800) is connected to the remote control console (900).
3. The hydropower station stacked beam gate status monitoring system as described in claim 2, characterized in that, The system also includes a rack server and a human-machine interface screen (700). The second signal output terminal of the local control unit (500) is connected to the rack server, and the rack server is connected to the human-machine interface screen (700).
4. The hydropower station stacked beam gate status monitoring system as described in claim 3, characterized in that, The second signal output terminal of the local control unit (500) is connected to the rack server via an RS232 interface, and the rack server is connected to the human-machine interface screen (700) via the MOBUS protocol.
5. The hydropower station stacked beam gate status monitoring system as described in any one of claims 1 to 4, characterized in that, The counting mechanism (200) is provided in multiple sets, and the triggering components (210) of the multiple sets of counting mechanisms (200) are respectively set to a track groove (110).
6. The hydropower station stacked beam gate status monitoring system as described in claim 5, characterized in that, The triggering component (210) consists of a trigger plate (211) and a metal sheet (212), and the sensing component (220) is a proximity switch.
7. The hydropower station stacked beam gate status monitoring system as described in claim 6, characterized in that, The counting mechanism (200) is supported by a support frame (300) on the side facing away from the door groove (100). The support frame (300) extends along the width direction of the door groove (100). The first end of the trigger plate (211) is rotatably connected to the support frame (300). The second end of the trigger plate (211) extends into the track groove (110). The proximity switch is located above the support frame (300). The metal plate (212) is located on the top of the trigger plate (211).
8. The hydropower station stacked beam gate status monitoring system as described in claim 7, characterized in that, The counting mechanism (200) has a U-shaped protective cover (400) on the side facing away from the door groove (100). The opening of the protective cover (400) faces the door groove (100), and the support frame (300) is located inside the opening of the protective cover (400).
9. The hydropower station stacked beam gate status monitoring system as described in claim 8, characterized in that, The proximity switch is located on the top of the protective cover (400).
10. The hydropower station stacked beam gate status monitoring system as described in claim 8, characterized in that, The support frame (300) is fitted with torsion springs (230) corresponding to each counting mechanism (200). The first free end of the torsion spring (230) is fixedly connected to the top of the trigger plate (211), and the second free end of the torsion spring (230) is fixedly connected to the protective cover (400).