Abstract: This disclosure provides an unmanned survey vessel with an anti-overturning structure and an anti-overturning method of same, and relates to the anti-overturning technique field of unmanned survey vessels. The unmanned survey vessel includes a vessel body and a plurality of buoys. The vessel body is a hollow frame of which a middle is provided with a discharge space. An uptight rod is vertically fixed at an upper-end of the tail part of the vessel body. A supporting beam is horizontally fixed at an upper-end of the upright rod. The supporting beam extends to a bow of the vessel. A rectangular notch is formed in one end, close to the bow, of the supporting beam. One end close to the bow inside the rectangular notch is rotatably provided with a guide rod through a pin shaft. The plurality of buoys are equally divided into two groups which are adjustably arranged on two side walls in the advancing direction of the vessel body respectively.

Abstract: An easy-to-assemble mounting rack for a deformation detection device for a steel structure and an assembling method thereof are provided. The easy-to-assemble mounting rack includes mounting parts including a back mounting plate, an operating rod, an adjusting seat, a ball-shaped block and an upright rod. The upright rod is vertically fixed at the bottom end face of the adjusting seat. A ball-shaped hole is formed in the adjusting seat. The ball-shaped block is rotatably embedded in the ball-shaped hole. A plug-in hole is formed in a radial direction of the ball-shaped block. One end of the operating rod slidably penetrates through the plug-in hole and is detachably connected with the back mounting plate. Screw holes directly opposite to the mounting holes of the deformation detection device are formed on the back mounting plate. The other end of the operating rod is fixedly sleeved with a counterweight plate.

Abstract: A water heating assembly is disclosed the includes a core heating element and an outer tube in which the core heating element is arranged. Also disclosed are methods for producing and using the water heating assembly.

Abstract: A liquid purification apparatus is disclosed, along with methods of producing and using same.

Abstract: The invention is directed to a water heating assembly (10) comprising a heating element (12) and a tube (11). The heating element (12) is arranged within the tube (11) forming a gap (19) between the heating element (12) and an inner wall of the tube (11) and is adapted to heat water within the gap (19). The water heating assembly comprises a spacer element (13) arranged within the gap (19). The invention is further directed to a method for producing a water heating assembly according to the present invention as well as a method for heating water by using the water heating assembly according to the present invention.

Abstract: A liquid purification apparatus (100), comprises a reservoir (101) for liquid (102) and a primary irradiation device (106, 301); characterized in that it has a directional valve (107, 500) which is mobile between a recirculating position and a discharging position where the liquid (102) flows through circulation tubes (105, 305, 501; 115, 306, 502) having at least one portion substantially transparent to ultraviolet light disposed within said primary irradiation device (106, 301); wherein when said directional valve (107, 500) is in the recirculating position, said reservoir (101), said circulation tubes (105, 305, 501), said directional valve (107, 500,115, 306, 502) form a closed loop. This invention eliminates any dead-space or dead-corners from the apparatus and also prevents the re-contamination of the whole system.