System and method for continuously discharging fluid under pressure from a pressure vessel

Abstract

The invention relates to a continuous discharging system and method of a pressurized fluid in a pressure container. The continuous discharging method of the pressurized fluid in the pressure containeris characterized by comprising the following steps that materials are conveyed to a first pressure container to be stirred and mixed with excess-pressure gas; the materials in the first pressure container are conveyed into a second pressure container; pressure gas is fed into the second pressure container to enable the materials to complete a reaction; pressure gas is fed into the third pressurecontainer, and the pressure in the second pressure container and the pressure in the third pressure container are kept identical; the materials are conveyed into the third pressure container; the pressure in the third pressure container is kept stable, and excess-pressure gas is conveyed to the first pressure container; pressure gas is fed into a fourth pressure container, and the pressure in thethird pressure container and the pressure in the fourth pressure container are identical; when the third pressure container reaches a preset temperature and pressure, feeding to the third pressure container is stopped, pressure relief starts, and the third pressure container and the fourth pressure container are alternately used to achieve continuous self-flowing discharging of the materials. Thecontinuous discharging system and method of the pressurized fluid in the pressure container can be widely applied to the technical field of chemical engineering or the technical field of pressure containers.

Description

technical field [0001] The invention relates to a continuous discharge system and method for pressurized fluid in a pressure vessel, belonging to the technical field of chemical industry or pressure vessel. Background technique [0002] A pressure vessel is a closed container that holds gas or liquid and carries a certain pressure. Pressure vessels have a wide range of uses, and are most widely used in the chemical industry and petrochemical industry, mainly for heat transfer, mass transfer and reaction processes. [0003] At present, the existing pressure vessels adopt intermittent operation to realize a series of processes such as feeding, reaction, pressure relief and discharge of fluid materials, but there are many defects in the actual production process: 1) due to the internal or external pressure of the pressure vessel A certain pressure, in some application fields, in order to ensure the safety during use, the pressure vessel needs to discharge the material after th...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing pressure vessels adopt intermittent operation to realize a series of processes such as feeding, reaction, pressure relief and discharge of fluid materials, but there are many defects in the actual production process: 1) due to the internal or external pressure of the pressure vessel A certain pressure, in some application fields, in order to ensure the safety during use, the pressure vessel needs to discharge the material after the pressure is released, that is, the material processing process needs to go through a process of feeding, pressurizing, reacting and discharging. The complete working cycle, repeated cycle operation, resulting in a long production cycle of the entire process and low material handling efficiency

2) The boosting process of the pressure vessel consumes a large amount of gas source. If the pressure vessel needs to re-provide the gas source or energy medium to ensure the pressure and temperature of the reaction vessel every time the pressure vessel completes a material processing process, a large amount of energy supply is required. High energy consumption and operating costs

3) The heat released during the pressure relief process before each discharge of the pressure vessel cannot be reused in a timely and effective manner, resulting in serious waste of resources

Images