Understanding the structure with pressure closure refers to the engineering construction, in order to prevent the fluid (such as water, gas, oil and gas, etc.) leakage or control the flow of fluid, take certain engineering measures to block the pressure of the fluid in a specific structure, so as to achieve stability and control the purpose.

Structures with pressure closure are widely used in various industries and fields, including petrochemical, construction, hydraulic engineering, energy and so on. The design and construction of these structures need to consider a variety of factors, such as working pressure, fluid properties, environmental conditions, structural strength, etc., to ensure the sealing effect and engineering stability.

In the petrochemical industry, the structure with pressure closure is widely used in pipeline systems and equipment. For example, a pressure vessel is a common type of pressurized closure structure used to store and transport high-pressure fluids. When designing and manufacturing pressure vessels, it is necessary to consider the strength and corrosion resistance of the material, as well as the sealing performance of the container.

Another common pressure sealing structure is the valve in the pipeline system. The valve can control the flow and sealing of the fluid to ensure the normal operation of the pipeline. When designing and selecting valves, factors such as fluid flow, temperature, pressure, and valve material and sealing performance need to be considered. In addition, for some special media, such as high temperature, high pressure or corrosive media, it is also necessary to select special materials or add accessories to increase the tolerance of the valve.

In the field of construction, the sealing structure with pressure is mainly used in underground engineering and hydraulic engineering. For example, the construction process of underground tunnels and underground pipelines needs to be blocked to ensure the stability of the project. Common sealing methods include grouting, grouting, sealing gasket and so on. In addition, in water conservancy projects, such as DAMS, sluice gates and hydroelectric power stations, it is also necessary to take certain blocking measures to control water flow and surface pressure to ensure the stability of the project.

In the energy industry, the sealing structure with pressure is mainly used in oil Wells and natural gas pipelines. In the process of drilling and production, it is necessary to take sealing measures to prevent oil and gas leakage and pollution. This includes the use of equipment such as plugging agents, blowout preventers and blowout caps. In natural gas transmission pipelines, valves, pipe joints and seals need to be installed to ensure the reliable operation of the pipeline.

In short, structures with pressure closure are indispensable in many fields, and they play a role in protecting and controlling fluids. Through reasonable design and construction, the stability and controllability of the structure can be ensured, so as to ensure the normal operation of the project and the safety of personnel. Therefore, it is very important for engineers and technicians to know and understand the sealing structure with pressure.