100results about How to "Less agitation" patented technology

The invention discloses a horizontal layered shallow water bottom mud sampler. The horizontal layered shallow water bottom mud sampler comprises a collector which is used for collecting shallow water bottom mud and a determination device which is used for determining the nutritive salt flux of the shallow water bottom mud. By cooperation of the collector and the determination device, the stirring of a bottom mud-water interface is reduced; the bottom mud, excluding overlying water, is collected, so that the stirring is reduced; a sampling drawer can directly control the layer and thickness of the bottom mud, so that a sample can be collected; the horizontal layered shallow water bottom mud sampler has the advantages of no bottom mud stirring, completeness, clearness in layering and large sampling amount; moreover, a ship does not need to be fixed in a sampling process, and a nutritive salt flux experiment on the bottom mud can be performed in a layered manner; and the horizontal layered shallow water bottom mud sampler is large in experimental flux area, light in weight, simple in structure, convenient to use and easy to operate.

The invention relates to an anti-clogging aerator which comprises an upper bubble rectifying device, a middle bubble cutting device, a lower bubble cutting device and an air intake component, wherein the upper bubble rectifying device comprises a cowling, a rectifying plate and a funneled cowling transitional connection casing; the middle bubble cutting device comprises a middle casing, a middle cutting plate and a middle funneled transitional connection casing; the lower bubble cutting device comprises a lower casing and a lower cutting plate; the air intake component comprises an air inlet pipe, a cover body and a baffle plate. According to the invention, gas is smashed into bubbles through cutting holes in the gas and liquid mixing process, after being cut at each stage, the bubbles become smaller in size and are increased in number, meanwhile, the gas flow rate is lowered so as to enlarge the service area of the bubbles. Blowdown holes are formed in the lower casing and the lower part of the cover body, the cutting holes are formed in the cutting plates and are not blocked easily or required to be cleaned, and the use is not influenced even the cutting plates scale slightly. The anti-clogging aerator is simple in structure and convenient to operate; procedures for cleaning the aerator frequently are reduced, and the production efficiency is improved.