4results about How to "Increase membrane area" patented technology

This utility model discloses an ultrafiltration deep wastewater treatment system, relating to the field of wastewater treatment technology. The utility model includes an assembly base and connecting water pipes. A system control cabinet is installed on one side of the upper end of the assembly base. A membrane tank and a membrane permeate tank are respectively opened on both sides of the middle of the upper end of the assembly base. A water inlet structure is provided on one side of the membrane tank. A submerged ultrafiltration membrane is detachably installed inside the membrane tank. The wastewater treatment system can be manufactured as an integrated skid-mounted device and fixed by a steel frame. The main equipment of the system includes a submerged ultrafiltration membrane, a membrane tank, a membrane permeate tank, a membrane self-priming pump, a membrane backwash pump, and an aeration blower. This equipment can operate in indoor and outdoor environments and requires a 380V power supply. Wastewater treated by the biological treatment system is coarsely filtered through a basket filter by the inlet pump before entering the membrane tank, which consists of a submerged ultrafiltration membrane and a steel membrane tank.

A membrane structure tiny fragment detection device is composed of a membrane structure, a compression type tension structure, a belleville spring composed of double metal sheets, a metal resonance strip, a charge amplifier and a signal processing unit, when tiny fragments collide with the tensioned square membrane structure in high-speed motion, vibration is generated on the membrane structure, the vibration is conducted to the four edges of the membrane structure through a membrane, and therefore the tiny fragments are separated from the membrane structure. Metal resonance strips on the four sides are used for collecting and causing the piezoelectric film to vibrate, vibration signals are monitored through the piezoelectric film, vibration signals on the four sides are substituted into a rectangular film forced vibration equation, the position coordinates of a vibration source can be positioned, and the position of the vibration source is the fragment collision / breakdown position; through an upper layer of rectangular film and a lower layer of rectangular film which are arranged at a distance of 40cm, debris collision / breakdown positions of the micro space debris on two planes which are at a distance of 40cm can be obtained, and through a connecting line of the two positions, space moving track parameters, namely speed information, incident direction and angle information, of the micro space debris can be obtained.

The application discloses a raw water local flow guide membrane element and a filter core, and belongs to the water purification field. The membrane element is used for cross-flow filtration; at least one membrane bag and a raw water flow guide net arranged on the inner side of the membrane sheet are included; each membrane bag has two opposite membrane sheets; the inner side of the membrane sheet forms a raw water flow channel which is communicated with a raw water inlet and a concentrated water outlet of the membrane bag, and the concentrated water outlet is located at the position of the first short side; the outer side of the membrane sheet forms a pure water flow channel; the raw water flow guide net is substantially equal to the second short side in the width direction, the raw water flow guide net is partially arranged in the length direction, and the raw water flow guide net covers the raw water inlet area. In the scheme, the water flow speed of the concentrated water end of the raw water side is automatically increased, so that the blockage is avoided, and the anti-pollution ability is high. Longer membrane bags can be arranged in the same space, and the water purification capacity is also significantly improved.

The present invention provides a gas separation system suitable for separating a gas mixture efficiently. A gas separation system 100 of the present invention includes: a first separation membrane 11 that separates a gas mixture 70 into a first permeated gas 80 and a first non-permeated gas 81; and a second separation membrane 21 that separates the first non-permeated gas 81 into a second permeated gas 90 and a second non-permeated gas 91. The gas mixture 70 contains a gas A and a gas B different from the gas A. The first separation membrane 11 allows the gas A to preferentially permeate therethrough. The second separation membrane 21 allows the gas B to preferentially permeate therethrough. A membrane area of the first separation membrane 11 is smaller than a membrane area of the second separation membrane 21. The gas separation system 100 recovers each of the second permeated gas 90 and the second non-permeated gas 91.