Automated methods and systems for diverting transmix from a petroleum pipeline are provided to reduce the overall production of transmix on the pipeline, based on pre-defined programmed cut-points associated with the various subtypes of hydrocarbon carried on the pipeline.

A pressure-difference transmission apparatus includes a main conduit sequentially connected to a first pressurizing device, an inlet device, an outlet device and a relief device, wherein the first pressurizing device and a second pressurizing device are in communication with the main conduit to provide pressure thereto; and a communication device connected to the relief device and in communication with an external atmospheric environment, wherein the inlet device has an inlet switch and a relief switch, the inlet switch controlling whether the inlet device and the main conduit are in communication with each other, the relief switch controlling whether the relief device and the main conduit are in communication with each other, and the communication device has a communication switch for controlling whether the communication device and the relief device are in communication with each other, thereby precluding a waste of drug, energy and time during transmission of drug.

A pressure-difference transmission apparatus includes a main conduit sequentially connected to a first pressurizing device, an inlet device, an outlet device and a relief device, wherein the first pressurizing device and a second pressurizing device are in communication with the main conduit to provide pressure thereto; and a communication device connected to the relief device and in communication with an external atmospheric environment, wherein the inlet device has an inlet switch and a relief switch, the inlet switch controlling whether the inlet device and the main conduit are in communication with each other, the relief switch controlling whether the relief device and the main conduit are in communication with each other, and the communication device has a communication switch for controlling whether the communication device and the relief device are in communication with each other, thereby precluding a waste of drug, energy and time during transmission of drug.

A fluid monitoring system (10) is suitable for the monitoring of liquefied natural gas in a pipe section (12), via insertion of a fluid-monitoring probe(14) into a port (16). The fluid-monitoring probe (14) is at least partially covered by a support structure (18), and a fluid-directing baffle (20) is mounted thereon to redirect fluid flow from the main liquefied gas flow to a secondary passage through the support structure.

A fluid monitoring system (10) is suitable for the monitoring of liquefied natural gas in a pipe section (12), via insertion of a fluid-monitoring probe(14) into a port (16). The fluid-monitoring probe (14) is at least partially covered by a support structure (18), and a fluid-directing baffle (20) is mounted thereon to redirect fluid flow from the main liquefied gas flow to a secondary passage through the support structure.

The embodiments of the present disclosure provide method and Internet of Things system for determining odorization parameters of smart gas device management. The method may include obtaining gas data of a first gas sample at a first position of a smart gas pipeline network, odorizing at a second position of the smart gas pipeline network based on the odorization parameters, obtaining inspection data of a second gas sample at a third position of the smart gas pipeline network, and sending the inspection data to the smart gas pipeline network device parameter management sub-platform for analysis and processing, obtaining a target odorization concentration, and determining target odorization parameters, updating the odorization parameters based on the target odorization parameters, and send updated odorization parameters to the smart gas data center, and odorizing, based on the updated odorization parameters, at the second position of the smart gas pipeline network.

The embodiments of the present disclosure provide method and Internet of Things system for determining odorization parameters of smart gas device management. The method may include obtaining gas data of a first gas sample at a first position of a smart gas pipeline network, odorizing at a second position of the smart gas pipeline network based on the odorization parameters, obtaining inspection data of a second gas sample at a third position of the smart gas pipeline network, and sending the inspection data to the smart gas pipeline network device parameter management sub-platform for analysis and processing, obtaining a target odorization concentration, and determining target odorization parameters, updating the odorization parameters based on the target odorization parameters, and send updated odorization parameters to the smart gas data center, and odorizing, based on the updated odorization parameters, at the second position of the smart gas pipeline network.

Automated methods and systems for diverting transmix from a petroleum pipeline are provided to reduce the overall production of transmix on the pipeline, based on pre-defined programmed cut-points associated with the various subtypes of hydrocarbon carried on the pipeline.

Automated methods and systems for diverting transmix from a petroleum pipeline are provided to reduce the overall production of transmix on the pipeline, based on pre-defined programmed cut-points associated with the various subtypes of hydrocarbon carried on the pipeline.

Retractable quills for use with a pipe or vessel containing a fluid, and methods of operation thereof, are described. The retractable quill has a cylinder and a hollow rod slidably disposed within the cylinder, the hollow rod having a first end configured to be inserted into the pipe or vessel in fluid communication with the fluid. The retractable quill also has a drive system configured to move the hollow rod within the cylinder between an extended position where the first end of the hollow rod is inserted into the pipe or vessel and within the fluid and a retracted position where the first end of the hollow rod is outside of the pipe or vessel. The retractable quill may be configured to maintain a positive pressure seal when the hollow rod is moved between the extended position and the retracted position.