CN213871692U

CN213871692U - Pipeline plugging assembly

Info

Publication number: CN213871692U
Application number: CN202022383511.XU
Authority: CN
Inventors: 丁建林; 来晨; 杜元亮; 张在秀
Original assignee: Zhejiang Hua Shi Pipeline Technology Co ltd
Current assignee: Zhejiang Hua Shi Pipeline Technology Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-08-03
Anticipated expiration: 2030-10-23

Abstract

The utility model relates to a pipeline construction equipment specifically discloses a pipeline shutoff subassembly. The pipeline plugging component comprises a plugging air bag, wherein the plugging air bag comprises a cylinder body made of an elastic material and end sockets made of a rigid material and positioned at two ends of the cylinder body, and the end sockets are hermetically connected with the cylinder body and enclose a pressurizing cavity; at least one end socket is provided with an air inlet joint which is communicated with the pressurization cavity; the air inlet joint is communicated with the air inlet pipe through a high-pressure pipeline; at least one end socket is provided with an air vent; the pressurization cavity is internally provided with a deflation assembly, and the deflation assembly comprises an electric control normally closed deflation valve; the device also comprises a control assembly, wherein the control assembly is electrically connected with the electric control normally closed air release valve and controls the opening and closing states of the electric control normally closed air release valve. The pipeline plugging assembly has a quick air release function, air release time is greatly shortened, and construction efficiency is improved.

Description

Pipeline plugging assembly

Technical Field

The utility model relates to a pipeline construction equipment, concretely relates to pipeline shutoff subassembly.

Background

When the pipeline construction is carried out, accumulated water or water flow exists in the pipeline frequently, and the normal operation of the construction is influenced under the condition that water in a construction area cannot be drained or is difficult to drain. At this time, a plugging air bag is usually adopted to partially plug the pipeline, so that a construction area is isolated, the workload of drainage is reduced, and a proper construction environment is created.

The plugging air bag is usually made of elastic materials, and high-pressure gas is filled into the plugging air bag to push the plugging air bag to expand and deform so as to plug the pipeline. Because the working pressure of the plugging air bag is high, in order to stably pressurize the gas and ensure the safety of the air discharging process, the air charging and discharging speed of the existing plugging air bag is low, and the construction efficiency is influenced.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a pipeline shutoff subassembly, have quick gassing function, shorten the gassing time greatly, improve the efficiency of construction.

In order to solve the technical problem, the utility model provides a technical scheme as follows: a pipeline plugging component comprises a plugging air bag, wherein the plugging air bag comprises a cylinder body made of elastic materials and end sockets made of rigid materials and positioned at two ends of the cylinder body, and the end sockets are connected with the cylinder body in a sealing manner and enclose a pressurizing cavity; at least one end socket is provided with an air inlet joint which is communicated with the pressurization cavity; the air inlet joint is communicated with the air inlet pipe through a high-pressure pipeline;

at least one end socket is provided with an air vent; the pressurization cavity is internally provided with a deflation assembly, and the deflation assembly comprises an electric control normally closed deflation valve; the device also comprises a control assembly, wherein the control assembly is electrically connected with the electric control normally closed air release valve and controls the opening and closing states of the electric control normally closed air release valve.

Before construction, high-pressure gas is introduced into the pressurizing cavity through the pressurizing assembly and the high-pressure pipeline to push the cylinder to expand and realize pipeline plugging. Before the pressurization is started and the construction is finished, the electric control normally closed air release valve is always in a closed state. After the construction is finished, the electric control normally closed air release valve is controlled to be opened, high-pressure gas in the pressurization cavity is rapidly discharged through the air release hole, and the construction efficiency is improved. Meanwhile, the electric control valve is adopted, so that remote control can be realized, and the safety of operators is ensured.

Preferably, the control assembly further comprises a pressure sensor arranged in the pressurization cavity, and in the pressurization process, once the pressure of the pressurization cavity is too high, the pressure sensor feeds back to the control assembly and further controls the electronic control normally closed deflation valve to release pressure, so that the safety work of the plugging air bag is ensured.

Preferably, the air bleeding assembly further comprises a pressure reducing valve which is arranged in series with the electric control normally closed air bleeding valve, so that the situation that the discharged air pressure is too large and the injury is caused to the workers or other equipment which are not withdrawn from the surrounding environment is avoided.

Preferably, the air discharging component further comprises an air pump connected in parallel with the electric control normally closed air discharging valve, an air outlet of the air pump is communicated with the air discharging hole, and a one-way valve is arranged between the air pump and the air discharging hole.

In the construction process, the plugging air bag often runs and even is clamped in a well chamber. The air pump can assist in discharging gas in the pressurizing cavity and drive the cylinder body to contract so as to take out the plugging air bag from the pipeline.

Drawings

Fig. 1 is a diagram illustrating a usage state of the pipeline plugging assembly according to the embodiment;

fig. 2 is a partial schematic view of a plugging balloon in the pipeline plugging assembly according to the embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

As shown in fig. 1 and 2, a pipeline plugging assembly comprises a plugging air bag 3, wherein the plugging air bag 3 comprises a cylinder 31 made of an elastic material and end sockets 35 made of a rigid material and positioned at two ends of the cylinder 31, the end sockets 35 are hermetically connected with the cylinder 31 and enclose at least one end socket 35 of a pressurizing cavity 39, an air inlet connector 36 is arranged on the end socket 35, and the air inlet connector 36 is communicated with the pressurizing cavity 39. The device also comprises a pressurizing assembly 1, wherein the pressurizing assembly 1 is communicated with the air inlet joint 36 through a high-pressure pipeline 2.

As shown in fig. 1 and 2, at least one of the sealing heads 35 is provided with an air vent 34. The pressurizing cavity 39 is internally provided with an air discharging component which comprises an electric control normally closed air discharging valve 32 and a pressure reducing valve 33 connected with the electric control normally closed air discharging valve 32 in series. The device also comprises a control component, wherein the control component is electrically connected with the electric control normally closed air release valve 32 and controls the opening and closing state of the electric control normally closed air release valve 32.

Before construction, high-pressure gas is introduced into the pressurizing cavity 39 through the pressurizing assembly 1 and the high-pressure pipeline 2, the cylinder body 31 is pushed to expand, and pipeline plugging is realized. Before the pressurization is started to the completion of construction, the electronic control normally closed air release valve 32 is always in a closed state. After the construction is finished, the electronic control normally closed air release valve 32 is controlled to be opened, high-pressure gas in the pressurization cavity 39 is rapidly discharged through the air release hole 34, and the construction efficiency is improved. Meanwhile, the electric control valve is adopted, so that remote control can be realized, and the safety of operators is ensured.

As shown in fig. 1 and fig. 2, the control assembly further includes a pressure sensor (not shown in the figure) disposed in the pressurizing chamber 39, and in the pressurizing process, once the pressure in the pressurizing chamber 39 is too high, the pressure sensor feeds back to the control assembly, and further controls the electronic control normally closed air release valve 32 to release pressure, so as to ensure safe operation of the plugging air bag 3.

As shown in fig. 1 and fig. 2, the air bleeding component further includes an air pump 38 connected in parallel with the electrically-controlled normally-closed air bleeding valve 32, an air outlet of the air pump 38 is communicated with the air bleeding hole 34, and a one-way valve 37 is arranged between the air pump 38 and the air bleeding hole 34. In the construction process, the plugging air bag 3 often runs and even is clamped in a well chamber. The air pump 38 is provided to assist in discharging the gas from the pressurized chamber 39 and to drive the cylinder 31 to contract so as to remove the occluding bladder 3 from the tube.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A pipeline plugging assembly, characterized in that: the plugging air bag comprises a cylinder body made of elastic materials and end sockets made of rigid materials and positioned at two ends of the cylinder body, wherein the end sockets are connected with the cylinder body in a sealing manner and enclose a pressurizing cavity; at least one end socket is provided with an air inlet joint which is communicated with the pressurization cavity; the air inlet joint is communicated with the air inlet pipe through a high-pressure pipeline;

2. The pipe plugging assembly of claim 1, wherein: the control assembly also includes a pressure sensor disposed within the pressurized chamber.

3. The pipe plugging assembly of claim 1, wherein: the air bleeding component also comprises a pressure reducing valve which is connected in series with the electric control normally closed air bleeding valve.

4. The pipe plugging assembly of claim 1, wherein: the air discharging component also comprises an air pump connected with the electric control normally closed air discharging valve in parallel, the air outlet of the air pump is communicated with the air discharging hole, and a one-way valve is arranged between the air pump and the air discharging hole.