43 results about "Membrane tubulation" patented technology

A compression sealable electrolysis cell that is easily and reliably manufactured, maintained and repaired comprises two insulating end pieces which can position and seal two electrode tubes with electrical contacts separated by a ceramic membrane tube where fluid can be introduced at one end piece and removed at the other end piece in the spaces between the electrode tubes and the ceramic membrane tube. The design permits the compression of the entire assembly via the fixing of nuts on one or more threaded rods extending through both end pieces without the use of an adhesive or cement and without the imposition of torque or compressive stress on the ceramic membrane tube. The water or other fluid to be electrolyzed can be introduced tangentially to spaces between the electrode tubes and the ceramic membrane tube at a angle of 0 to 15 degrees to optimize flow and contact with the electrode tubes.

The invention relates to a ceramic membrane tube support and a preparation method thereof and belongs to the technical field of ceramic materials. The ceramic membrane tube support and the preparation method thereof are characterized in that the ceramic membrane tube support comprises a plurality of channels and at least one filtrate chamber, at least one water discharging channel is included in the support and penetrates through the whole support axially or is evenly distributed on the support axially, the angle formed by the at least one water discharging channel and the axial direction of the support is 90 degrees, the angle formed by the at least one water discharging channel and the at least one filtrate chamber is 0-90 degrees, the filtrate chambers corresponding to the at least one water discharging channel on the upper surface and the lower surface of the ceramic membrane tube are plugged and sealed by utilizing high polymer materials or rubber materials or plugged by slurry for producing the support, and finally integrated with the ceramic membrane tube through drying and sintering. The prepared ceramic membrane tube is large in surface area and multi-channel, the defect of large filtration resistance of filtrate in the ceramic membrane tube is overcome, and separation and permeability efficiencies are improved. According to the ceramic membrane tube support and the preparation method thereof, the preparation technology is simple, the production cost is low, and the ceramic membrane tube support can be widely applied to the water treatment field or other liquid filtering processes.

The invention discloses a vortex tube-type membrane component and a system. The vortex tube-type membrane component is composed of a vortex tube-type membrane element, a pipeline, and a housing, and is driven by a motor to rotate; and the vortex tube-type membrane element is a structure shaping like a vortex, a spiral, or a spiral tower. The vortex tube-type membrane component is capable of improving anti-pollution capability, improving membrane separation capability, prolonging membrane service life greatly, and reducing operation cost, and shapes like a vortex line; membrane tube diameter is changeable; 70 to 85% energy is saved; aeration is not needed; low cost operation is realized; automatic adjustment of membrane passing conditions (such as pressure and tangential force) with the change of medium characteristic parameters (concentration, viscosity, and flow amount) is realized; and the vortex tube-type membrane component is suitable for organic membranes and inorganic membranes of different separation accuracy.

The invention relates to a hollow fibrous reverse osmosis composite membrane, which comprises more than ten abreast-arranged hollow fibrous membrane tubes, wherein the outer walls of the two ends of each hollow fibrous membrane tube are in sealing connection; the molecular weight cut-off of the fibrous membrane tubes is 15,000 to 30,000; the inner diameter of each fibrous membrane tube is 0.8 t 1.0 mm, while wall thickness is 0.5 to 0.7 mm; and the inner hole wall of each fibrous membrane tube is provided with a 3 to 100 nm thick active polyamide layer produced by polyreaction. As the surfaceof the inner hole wall of each hollow fibrous membrane tube is connected with a functional separation layer through interface polymerization, the hollow fibrous reverse osmosis composite membrane hasthe characteristics of high contamination resistance, durable and stable flux, relatively simpler production process and low production cost, and can be used for the desalination of sea water, the preparation of ultra-pure water, and the treatment and the like of surface water and some special wastewater.

The invention relates to a multi-channel membrane tube, which is characterized in that the permeate side is in the multi-channel of the membrane tube, and the outer surface of the membrane tube is used as the raw material side or closed, and can be used as a membrane module without adding a closed shell-shaped jacket. In the case of the same external dimensions, the multi-channel membrane tube of the novel structure can have different ratios of the permeate side area and the raw material side area, thereby improving the utilization efficiency of the surface area of ​​the membrane tube. It is applied to the process of immersing the membrane element or membrane module in the raw material fluid for membrane separation, and has the characteristics of simple manufacture and low equipment cost.