WTDC type hydraulic grab beam deep water monitoring system - Water conservancycrane computer, safe load indicator,Marine CCTV Camera System

WTDC type hydraulic grab beam deep water monitoring system

Time:2020-03-09 10:08 Read:9404 Source:Internet

Eyes for deep water lifting with hydraulic grab beam

——Application of WTDC network underwater monitoring system

1、 Product Market Overview

The gate crane is often used to lift and lower the gate during the unit maintenance or flood control of hydropower station. At present, most portal cranes in hydropower stations use hydraulic grabbing beams. Once the grabbing beams are submerged in the water,How to ensure the stable and accurate connection and disconnection between the grabbing beam and the gate during underwater is related to whether the gate can complete the lifting and lowering normally, and is the key to the whole lifting work. Grab beam under waterWorking in an environment of more than 10 meters to more than 100 metersThe working conditions are complex, and various uncertain factors make the underwater hoist gate in a state that can not be completely controlled, which has been a headache for the majority of hydropower people. So how can we know the working state of the grabbing beam under water? Can we install a pair of eyes on the grabbing beam?

For Industry pain points, Weite independently developedWTDC typeThe network HD underwater monitoring system has overcome a series of difficulties in temperature difference, lighting, sealing and transmission. The success will be achieved in200 meters underwaterThe beam grabbing state is clearly displayed in front of the crane driver in real-time images, with clear image quality, like a pair of bright eyes, which makes the lifting operation so convenient and provides an effective technical guarantee for the safe operation of the power station.

Wtdc-n210lz4dc12v2 underwater HD digital camera



WTDC-N210LZ4dc12v2 typeUnderwater HD digital cameraheadIt has the advantages of clear and delicate imaging, rich color and anti deep water; It adopts advanced coding and compression technology, excellent automatic focusing and automatic exposure technology, with the characteristics of accurate focusing, fast speed and good exposure effect. Its composition includes a high-definition camera installed on the hydraulic grabbing beam. The video information of the camera is transmitted to the underwater sealing box through the signal cable, and transmitted to the liquid crystal display and hard disk video recorder in the monitoring room through the deep-water signal cable. The micro special high-definition digital camera can clearly observe the process of the hydraulic grabbing beam's penetration and detachment. After the installation of a complete visualization system, the safety visibility of the lifting equipment in the underwater operation is ensured, so that the underwater penetration and detachment action has a double guarantee, thereby improving the safety of the hydraulic grabbing beam operation, ensuring that the problems of the hydraulic metal structure products in the operation process can be found as soon as possible and handled in time, thus reducing the safety risk of the equipment operation, It greatly enhances the safety and reliability of the gate pin passing and retracting action in the unit maintenance work, and the operator can intuitively see the working condition information of the whole process of grasping the beam pin from the human-machine interface.

WTDC typeTopology diagram of network HD underwater monitoring system


WTDC typeInstallation diagram of network HD underwater monitoring system



2、 Main features of the product

WTDC underwater HD digital cameraThe head adopts the internationally advanced design concept and adopts high-definition digital camera. The sealing process is advanced, the transmission distance is long, and the imaging is clear. It has the following characteristics and innovations:

1Long signal transmission distance and stable communication.

Most of the other competitive products in the market use analog signal output, with weak anti-interference ability and limited transmission distance.

Vetor WTDC underwater high-definition digital camera adopts digital signal movement, with strong anti-interference ability, matching with special transmitter, and the transmission distance can reach 300 meters. And only two cables are required for transmission to transmit the video signal to the cab console. Multiple cameras can share signal lines, which is particularly convenient for construction and installation.

2Remote network upgrade and remote maintenance.

Vetor WTDC underwater HD digital camera can customize IP address on site, and can be seamlessly connected to the original video system. Users do not need to worry about the trouble caused by IP address conflict, and can connect the camera to the local area network for remote upgrade and remote maintenance.

3. High definition image.

Vetor WTDC underwater high-definition digital camera is illuminated by multiple LED beads and powered by independent power supply。 Micro special camera adopts full-automatic focusing function, which is more convenient to use. Advanced video compression technology, high compression ratio, flexible processing and ultra-low code rate.

4. Sealing performance.

Every micro specialIn addition to routine quality inspection, WTDC underwater high-definition digital camera also needs to undergo 3Mpa water pressure test through pressure testing machine simulation. After 72 hours of test, the products whose data signal transmission and sealing performance meet the requirements are allowed to leave the factory, effectively ensuring that the quality of each camera head meets the requirements.

IOT experiment of micro and special sensors -- deep water pressure testing machine



IIIproductApplication case

Weite WTDC type network underwater monitoring system was first applied in Geheyan power plant of Qingjiang River in 2014. After continuous improvement and improvement of design and process in recent years, the products have been successfully applied to more than 50 large and medium-sized hydropower stations in China, including Gezhouba, Nuozhadu, Gongguoqiao, Longyangxia, Laxiwa, Xiangjiaba, Jinping I, Baozhusi, Zipingpu, Wuqiangxi, Lingjintan and xiaosanxia.

WTDC underwater camera andWT-CMThe pin threading sensor is installed in Jinping I power station


WTDCApplication of waterproof junction box and quick waterproof plug for grabbing beam of type-A underwater monitoring system


At about 14:00 on April 26, 2019, the lifting operation group of the draft tube bulkhead gate of unit 6 of the lifting metal structure division of Xiangjiaba power plant was preparing to fill the horizontal pressure of the draft tube elbow according to the maintenance plan, when the trolley driver heard an extremely excited voice through the interphone: "I saw a big fish in the picture from the underwater probe of the hydraulic grab beam!"

The monitoring picture of Xiangjiaba tailrace trolley cab startles the presence of big fish


Behind this surprise discovery is the installation of WTDC network underwater monitoring system. In December 2018, after the intensive and meticulous work of micro and special engineers, the installation and underwater joint commissioning of the underwater monitoring system of the tailrace trolley of Xiangjiaba power plant were successfully completed, which successfully passed the third level acceptance of the owner, and the project reached excellent. The big fish in the monitoring picture of the cab is the data from the WTDC underwater camera. Later, the experts of the fishery release station confirmed on the spot that the big fish that appeared in the underwater probe was the national first-class protected animal "Yangtze River sturgeon". Moreover, there were seven "Yangtze River sturgeons" in the space of less than 20 square meters in the No. 6 draft tube of Xiangjiaba power plant, which was rare. It also witnessed the good effect of the state in protecting water resources and the environment.

WTDC underwater HD digital camera in XiangjiabahydropowerfactoryApplication on portal crane


WTDC underwaterApplication of double waterproof junction box arrangement of monitoring system on portal crane of Xiangjiaba Hydropower Station


Underwater video imaging effect is good and clear


IVFuture outlook

"Prepare for the rainy day and take precautions" is the basis of safe production. As the key unit of safe production, the safe and standardized operation of any process is of great importance. As for the gantry crane of hydropower station, which is responsible for flood control, flood discharge, unit maintenance and other lifting tasks, the stable operation of its grabbing beam under water is the key to completing the lifting work. As a manufacturer that has long been committed to the research and development, production and service of the underwater monitoring system of hydraulic grabbing beam of the gantry crane of hydropower station, Weite has always felt great responsibility and has been continuously developing and designing products for many years, The full stroke RS485 pin sensor digital detection system, high-definition underwater video system, stainless steel hydraulic pump station system and brand-new sealing technology of the hydraulic grab beam of the portal crane of hydropower stations independently innovated by Weite are serving more and more hydropower stations in the country and playing an important role in ensuring the safe operation of the portal crane of hydropower stations.

Hydropower division of Weite Technology Co., Ltd

Service hotline: 400-008-2600







What does Weite do?  

It is a crane safety management company to do crane safety monitoring and management products. The significance of the existence of Weite is to ensure that the crane operation is safer and the management is easier. Our primary responsibility is to avoid accidents during crane operation and provide valuable management information for the management of lifting equipment.