A Seagrass Situation Isolation Experimental Device

Abstract

The invention belongs to the field of experiment equipment, and particularly relates to a seaweed in-situ barricading experiment device which comprises a barricading body with the top closed and the bottom open, a supporting frame, a first outer impeller, an inner impeller, a spindle and a fixing device used for fixing the barricading body. The supporting frame is fixedly connected at the top of the barricading body, the spindle penetrates the top of the barricading body and is rotatably connected with both the supporting frame and the barricading body, the first outer impeller is fixedly connected on the spindle and positioned outside the barricading body, the inner impeller is fixedly connected on the spindle and positioned inside the barricading body, and the barricading body is made of a transparent material. The seaweed in-situ barricading experiment device is simple to use and simple, stable and reliable in structure; a power transmission system composed of bearings and impellers is utilized to input power of natural motion of seawater into the barricading body, so that an externally-connected power source is not needed to supply system power; fixing rods penetrating bottom lugs of the barricading body are adopted as a main anchoring structure, so that convenience is brought to underwater operation; a rubber sleeve is arranged, so that the barricading body is prevented from slipping, and firm fixing is realized.

Description

technical field [0001] The invention belongs to the field of experimental equipment, in particular to an experimental device for seagrass site enclosure. Background technique [0002] In the research process of seagrass physiological and ecological experiments, in-situ experiments are required to obtain seagrass physiological and ecological experimental data under natural conditions. Under this condition, seagrasses are in a natural physiological state, and there is no need to transplant them indoors for several days. Experiments can be carried out during the adaptation period, and each environmental factor is in a natural state, which cannot be completely simulated by non-indoor control conditions. However, since seagrass is mostly distributed in the subtidal zone, in-situ experiments must be carried out underwater. Since most researchers do not master scuba diving techniques, it is difficult to operate them by themselves. Even if scuba diving is possible, if the enclosure ...

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Problems solved by technology

However, since seagrass is mostly distributed in the subtidal zone, in-situ experiments must be carried out underwater. Since most researchers do not master scuba diving techniques, it is difficult to operate them by themselves. Even if scuba diving is possible, if the enclosure device is complicated, It also greatly increases the difficulty of the work, and the experiment is difficult to complete

Moreover, the hydrodynamic forces in the natural sea area are strong, and it is difficult to fix the in-situ experimental device. It is very likely that the experiment will fail because the fixation is not strong enough. The above problems limit the development of the sea grassland experiment. The device for bit experiment needs to be designed urgently

[0003] At present, the research and device of seagrass situ experiment have not been carried out in China, and it is only found in the research report of Macinnis-Ng et al. on the influence of heavy metals on seagrass physiology abroad. The fixed structure of the device used in this study is four-strand cable and embedded Type anchor, which is anchored in the bottom, and the ship needs to be fixed above the experimental device. The external power supply on board the ship provides power for the internal water body through the submersible pump to make the internal water body move.

Since a specific ship needs to be fixed above the enclosure to provide power for the submersible pump in the enclosure, in case of stormy weather, the ship cannot stay at sea, so that the experiment cannot be carried out at any time; and the operation of fixing the cable is difficult and inefficient

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