Underwater water intake and drainage port plugging device and plugging structure

Abstract

The invention provides an underwater water intake and drainage port plugging device and a plugging structure. Through the matching relations of a lower clamping plate and a lower positioning pin, an upper clamping plate and an upper positioning pin and an upper clamping plate hinged with a hydraulic cylinder, the underwater intake and drainage port plugging device can be limited to a drainage pipeline, the sealing pressure of the underwater water intake and drainage port plugging device and a water intake and drainage port is loaded on the water intake and drainage port through a hydraulic system, the safe and reliable water stopping effect is realized, the effect of automatically sealing the water intake and drainage port under water independent of personnel is achieved, and the long-termplugging effect of the water intake and drainage port is achieved by means of the pressure maintaining effect of the hydraulic system. In addition, a technician only needs to stand on a safe operating platform, and by means of a special hoisting system, a plurality of monitoring devices, an end touch sensor and an underwater electric travelling system, the automatic plugging function of the underwater water intake and drainage port can be realized.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower, and in particular relates to a plugging device and a plugging structure for underwater intake and drainage outlets. Background technique [0002] In water conservancy and hydropower projects, thermal power projects, mining projects or port and navigation projects, more water supply and drainage systems are designed to meet the water and drainage needs of equipment and users. Underwater, in order to meet the needs of the suction and safe operation of the water supply equipment, or to meet the needs of a certain water level drop, so as to avoid air entering the pipeline. In the past, the maintenance and disassembly of the first maintenance valve on the pipeline after the intake and discharge outlets of many projects were realized by setting steel gates at the intake and discharge outlets, and the steel gates were closed to cut off the external water source. The gates, the ...

AI Technical Summary

Problems solved by technology

Usually, the water intake and drainage outlets of these projects are relatively large in scale and size. At the same time, relatively convenient traffic conditions and layout conditions need to be set up. The project can invest a relatively large investment, but it is not necessarily the case for water intakes with relatively small diameters. Suitable, if the water intake is arranged in a deep underwater position, it will be more difficult to achieve

[0003] Although most of the equipment maintenance in previous projects needs to be realized by closing the steel gate, due to the limitation of layout conditions, it is impossible to install the necessary equipment and valves of the steel gate isolation maintenance system at the intake and drainage outlets, and there are still relatively many projects for water supply and drainage The first valve or equipment behind the intake and drainage outlets of the system cannot be repaired

In some projects, a temporary cofferdam is set up around the water intake to meet the needs of blocking the water intake, but the price paid is very high, requiring a lot of manpower, material resources and energy, and it takes a long time. The equipment in the intake and drainage After the overhaul is completed, it needs to be demolished by blasting, which may endanger the operation safety of the intake and drainage outlets

The sealing of some intake and discharge outlets relies on professional divers to dive into the water, and connect the plug to the water intake to realize the sealing of the intake and discharge outlets. Due to the unknown situation underwater, the vision is relatively poor, and there is no one to rely on for underwater operations. facilities, the operation is difficult, and there is a certain water pressure, which brings a relatively large risk to divers when they work underwater, and may even easily cause personal injury.

Images