Device capable of injecting medium into pressure system and capable of being maintained online

Abstract

The invention discloses a device capable of injecting a medium into a pressure system and capable of being maintained online. The device comprises an injection mechanism connected with the open end ofa pressure bearing container. A medium inlet channel is formed in the open end of the pressure bearing container. The injection mechanism comprises a mounting channel communicating with the medium inlet channel and a switching valve for conducting or closing communicating of the mounting channel and the medium inlet channel. An injection pipe is arranged in the mounting channel in a matched mode,an injection nozzle penetrating through the medium inlet channel of the pressure bearing container to extend into the pressure bearing container is mounted at the outlet end of the injection pipe, and the other end of the injection pipe is connected with an operating mechanism capable of driving the injection pipe to rise and fall; a non-return valve is further arranged between the operating mechanism and the switching valve, and the switching valve and the non-return valve are connected through a transition mechanism; and the injection mechanism and a valve rod form double-seal fit through anon-return valve filler and a switching valve filler. According to the device capable of injecting the medium into the pressure system and capable of being maintained online, the purpose that the injection nozzle and the injection pipe can be online cleared, maintained and replaced without stopping operation of the system can be really achieved.

Description

technical field [0001] The invention relates to the field of petrochemical technology, in particular to a device capable of injecting medium into a pressure system and capable of online maintenance. Background technique [0002] For petrochemical and other pressurized continuous operation systems, it is often necessary to inject some kind of medium into the pressurized device. Some injected media contain solid particles, and some injected media will stick or block the injection device. Sticking or clogging can cause the injection device to not inject the medium effectively or to fail completely. Usually, the whole system can only be stopped, and then the injection device is removed for cleaning, maintenance or replacement, and then the whole system is restarted after reinstallation. This method needs to stop the whole system, because the system is not running well Continuous and unstable, bring huge adverse effects to the system, and cause significant economic losses. Con...

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Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a device capable of injecting medium into the pressure system and maintaining it online, which solves the problem of shutting down the entire system due to cleaning, maintenance or replacement in the prior art. The problem of loss of significant economic cost

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