Abstract: A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline includes pipeline data monitoring terminal, current and electric pulse control terminal, land console, electric heating terminal, wiring flange, oil and gas transportation pipeline, valve structure. The system monitors the state of the pipeline in real time by the pipeline data monitoring terminal, and transmits the monitoring data to the current and electric pulse control terminal in real time, the current and electric pulse control terminal produces different thermal responses to the electric heating terminal according to the state in the tube, raises the temperature inside the tube by generating a continuous current, unblocks pipeline by generating high power electric pulse, so as to realize real-time monitoring and local temperature dynamic control of oil and gas transportation pipeline.

Abstract: The present disclosure relates to the technical field of wastewater treatment, and provides a wastewater treatment method and apparatus based on hydrate-based water vapor adsorption. The apparatus includes a wastewater evaporation zone, a hydrate formation zone, a hydrate decomposition zone, and a data acquisition and control system. Rising water vapor and condensed water formed during evaporation of wastewater at normal temperature react with a hydrate former on a cooling wall surface to form a hydrate, continuous evaporation of the wastewater is promoted, the hydrate is scraped off to a collecting zone below by a scraper after being formed, and the hydrate is decomposed into fresh water, thereby realizing wastewater treatment. The present disclosure provides a method for treating complex wastewater containing a plurality of pollutants, where water vapor is consumed to form the hydrate to promote wastewater evaporation, and water obtained from the decomposition does not contain pollutants theoretically.

Abstract: A nail gun having a striking member installation mechanism comprises a casing having a main casing body, and a striking member baffle removably disposed over a replacement opening of the main casing body; a striking member removably disposed inside the main casing body and below the striking member baffle; and a striking member driving assembly having a piston for driving the striking member in a reciprocating motion direction, wherein the striking member has a striking member tail, a protruding part, and a guiding striking part; wherein the piston comprises a striking member connector having a protruding part receiving hole; and wherein the protruding part is removably received in the protruding part receiving hole.

Abstract: A grouting system with an adjustable moving cavity pressure. The grouting system includes a master grouting pipe and a plurality of grouting valve pipes connected to the master grouting pipe, each grouting valve pipe is in an annular space within a borehole wall, the grouting valve pipe includes a grouting valve pipe body, and a spraying valve port is on the grouting valve pipe body. A grouting pipe, an air injection pipe and a movable piston are inside the grouting valve pipe body. The air injection pipe is connected with the movable piston to apply an air pressure into the movable piston, and the movable piston applied with the air pressure expands in volume to form a closed cavity between a lower part of the movable piston and the grouting valve pipe body, so that grouting is performed according to the position of the movable piston.

Abstract: An imaging structure for a portable electronic device is disclosed. The imaging structure may include a housing with an opening for obtaining an external light. The structure may include a reflective module having a first reflective surface and a second reflective surface for reflecting the external light. The reflective module includes a linear movement switching mechanism configured to move the reflective module in a linear direction inside of the housing.

Abstract: An imaging structure for a portable electronic device is disclosed. The imaging structure may include a housing having an opening for obtaining external light. The imaging structure may also include a reflective module coupled with the housing. The reflective module may include a reflective surface for reflecting the external light. The imaging structure may further include a photo-sensing module coupled with the reflective module. The photo-sensing module may be configured to generate an image based on the external light reflected from the reflective module toward the photo-sensing module.

Abstract: An imaging structure for a portable electronic device is disclosed. The imaging structure may include a housing having an opening for obtaining external light. The imaging structure may also include a reflective module coupled with the housing. The reflective module may include a reflective surface for reflecting the external light. The imaging structure may further include a photo-sensing module coupled with the reflective module. The photo-sensing module may be configured to generate an image based on the external light reflected from the reflective module toward the photo-sensing module.