Water injection type water blockage air bag and application method thereof

Abstract

The invention relates to the technical field of water blockage equipment, and discloses a water injection type water blockage air bag and an application method thereof. The application method of the water injection type water blockage air bag specifically comprises the following steps that firstly, a three-phase power source is connected, an air compressor is adjusted, an air pressure meter of theair compressor is checked to the normal air pressure, a water pressure vehicle and an air pump get ready, the seal performance of an air nozzle and a pipe connector is checked, and a medical oxygen meter air entrapping pipe and the air compressor are connected to serve as an emergency air source; and secondly, a diver enters a water conveying pipeline for underwater groping, and whether impurityburrs exist in the water conveying pipeline or not is checked. Water is injected into an air bag body, the weight of the air bag body and the water pressure to the side wall of the air bag body from water are increased, friction force between the air bag body and the inner wall of the water conveying pipeline is increased, accordingly, the capability of bearing the water pressure under the actionof a high water head is improved, water injection is equivalent to reduction of internal space of the air bag body, accordingly, the inflation amount is reduced, the effect of lowering the gravity center of the air bag body is achieved, and stability of the air bag body is improved.

Description

technical field [0001] The patent of the present invention relates to the technical field of water shutoff equipment, in particular, to a water injection water shutoff air bag and its usage method. Background technique [0002] With the accelerated pace of urbanization, large-diameter and super-large-diameter water pipes have become veritable urban arteries. In these large-diameter and super-large-diameter water pipeline accident repairs, due to the presence of sewage in the pipeline, the repair or replacement of the pipeline cannot be carried out normally. In order to facilitate the construction, the water flow at both ends of the accident section is generally blocked and diverted flow, forming a safe and reliable construction space. [0003] There are two traditional methods. The first one is to build block walls at both ends or use sandbags to block the water flow. However, under high water head, this traditional method cannot quickly and effectively block the water flow...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a water-injection water-blocking airbag and its use method. By injecting water into the airbag body, the weight of the airbag body itself and the hydraulic pressure of the water on the side wall of the airbag body are increased to increase the distance between the airbag body and the inner wall of the water delivery pipe. frictional force, so as to improve the ability to withstand the water pressure under the action of high water head, aiming to solve the problem that the current technology cannot quickly and effectively block the water flow, and the workers work underwater in many cases, which is very inconvenient for construction. It is also inconvenient to dismantle and will be accompanied by a large amount of residual garbage causing secondary pollution to water

Images