3results about How to "Flexible laying" patented technology

The utility model relates to pipe gallery gas detection technical field especially is arrayed optical fiber gas sensor protection device for pipe gallery, device includes first optical cable locking subassembly, optical fiber device chamber subassembly, gas sensing chamber subassembly and second optical cable locking subassembly, wherein, first optical cable locking subassembly is connected with optical fiber device chamber subassembly respectively, and optical fiber device chamber subassembly is fixedly installed with optical fiber device, gas sensing chamber subassembly is fixedly installed with optical fiber gas sensing device, second optical cable locking subassembly is connected and fixed with gas sensing chamber subassembly respectively, a kind of multi-joint type optical fiber gas sensor structure of the utility model has multiple optical device installation chamber, and the flexible installation and effective protection of optical fiber gas sensor each device are easy.

The application provides a water lens heater for warming and heat preservation of a mariculture pond and a use method, and relates to the technical field of seawater heating. The heater comprises a water lens unit and at least one heat preservation unit, the water lens unit and the heat preservation unit form a stacked structure distributed in an up-down mode, the water lens unit is located below the heater, and the heat preservation unit is stacked above the water lens unit; a water injection cavity for water injection is formed in the water lens unit, and an air cavity for air injection is formed in the heat preservation unit; the water lens unit and the heat preservation unit are both made of a light-transmitting film. The heater can effectively shorten the warming period of the mariculture pond through the synergistic effect of the three mechanisms of heat locking through the greenhouse effect, light concentration and efficiency increase through the lens, and multi-layer air heat insulation, can raise low-temperature seawater to a suitable temperature for breeding in several hours or 1-2 days, and greatly improves fattening efficiency and production rhythm.

The invention relates to the technical field of mine ventilation, and provides a mine ventilation device facilitating pipeline arrangement, which comprises a barrel, a rotating rod is rotatably connected in the barrel, the rotating rod is driven by a driving assembly to rotate, and an exhaust fan mounted on the inner wall of the barrel is driven by the rotating rod to perform exhaust work; and fresh air is conveyed into the first connecting pipe, the rear side of the barrel is fixedly connected with a dust blocking plate used for blocking dust, and a cleaning brush used for cleaning dust accumulated on the surface of the dust blocking plate is arranged on the rear side of the dust blocking plate. Due to the modular split type design of the pipeline part, the pipeline can be laid more flexibly, the problem that the structure is too short or too long is reduced, splicing or cutting off is not needed, the integrity of the pipeline is guaranteed, the reusability is improved, when a certain position of the pipeline part is damaged, only the corresponding part needs to be replaced and maintained, and the cost is reduced. The influence on other pipelines is eliminated, and the pipeline replacement and maintenance cost is reduced.