209results about How to "Increase the effective filter area" patented technology

The present invention relates to a filter device for filtering a fluid, in particular an oil filter. It has at least one filtering medium and a bypass for the filtering medium. Furthermore, an actuator is provided, which influences the flow of the fluid through the bypass as a function of a predetermined parameter of the fluid. The actuator is preferably controlled as a function of the viscosity of the fluid, a differential pressure of the fluid at the filtering medium, and/or the temperature of the fluid.

The invention discloses a spraying rotating brush dust collecting device. The entire dust collecting device is a tower body of which the lower part is provided with a flue gas inlet and the top is provided with a flue gas outlet; a demister is arranged in front of the top flue gas outlet of the tower; the middle part of the tower is provided with a spraying layer and a hair brush filtering layer; the bottom of the tower is provided with a mortar pond; the spraying layer is positioned above the hair brush filtering layer; the hair brush filtering layer consists of a plurality of rotating brush layers, a plurality of fixed brush layers, a transmission mechanism, a speed reducer and a driving motor; each rotating brush layer and each fixed brush layer consist of one group of hair brushes; the hair brushes are fixed on corresponding hair brush shafts; and each hair brush shaft of the rotating brush layer is in transmission connection with the driving motor through the transmission mechanism and the speed reducer. The spraying rotating brush dust collecting device has the characteristics of high suitability and high dust collecting efficiency, and is particularly suitable for purifying high-temperature and corrosive gases.

The invention relates to a novel flat-sheet membrane module, which comprises filtering membranes and a support diaphragm plate for fixing the filtering membranes, wherein the support diaphragm plate is clasped with two front and back mesh plates through a frame; the front lateral surface and the back lateral surface of the support diaphragm plate are uniformly provided with densely distributed filter meshes; the two lateral surfaces are fixed with the filtering membranes in a mode of sticking or welding; membrane holes on the filtering membranes are communicated with a hollow inner cavity through the meshes on the support diaphragm plate; and a stream guiding area is arranged in the hollow inner cavity, and one end of the support diaphragm plate is provided with an effluent nozzle communicated with the stream guiding area. When the flat-sheet membrane module is applied, under the action of the negative pressure of a self-priming pump or the positive pressure of a filter hybrid hydraulic head, liquid infiltrates the surfaces of the filtering membranes, runs through the meshes of the support diaphragm plate to enter the hollow inner cavity, and then flows into an effluent trench through the stream guiding area and outflows from the outflow nozzle to realize the integral filtering process. The membrane module has the characteristics of easy machining, high utilization factor of the membrane, uniform distribution of pressure in the cavity and the like, is easy to be assembled into membrane assemblies in various forms, and is applicable in the fields of industrial filter and water treatment.

The invention discloses a cylindrical backwash purifying device comprising a body and a plunger which is arranged in the body and can be connected in an axially sliding manner. The body is provided with a feeding passage and a discharge passage which are connected with a through hole. An outer circle at the front part of the plunger is recessed inwards, and together with the inner wall of the through hole, forms an annular empty cavity which is connected with the feeding passage. The plunger is axially provided with an L-shaped hole, which is connected with the discharge passage, in a direction from the front to the back. A recessed peripheral surface of the plunger is radially provided with a filter hole connected with the annular empty cavity and the L-shaped hole. The recessed peripheral surface of the plunger is connected with a detachable filter screen. A separating bar contacted with the inner wall of the through hole is axially arranged on the plunger and in the annular empty cavity. Semicircular grooves are arranged on the outer surface of the plunger and at two sides of the discharge passage. The cylindrical backwash purifying device has the advantages of reasonable design, simple structure, small volume, large effective filter area, good filter effect, no need of halt during cleaning or filter screen replacement, long continuous work time, high work efficiency and high product quality.

The invention provides a breathing training device. The breathing training device comprises an inspiration training assembly, an expiration training assembly, a gas drainage assembly and a breathing terminal, wherein an inspiration floating part and an expiration floating part are respectively provided with an inspiration ventilation pipe and an expiration ventilation pipe which run through the inspiration floating part and the expiration floating part; an inspiration indicating float and an expiration indicating float are also arranged inside the inspiration ventilation pipe and the expiration ventilation pipe. The breathing training device not only enables inspiration training and expiration training to be synchronously carried out in the healthy breathing environment and improves vital capacity, but also has a function of indicating the recovery condition of the vital capacity.

The present invention relates to a press pan filter which includes a hollow shaft, a filtering apparatus fixed on the hollow shaft, a scraper apparatus for discharging and a tank, it is characterized in that: the filtering apparatus is at least a circular filter plate arranged along the axial direction of the hollow shaft, the circular filter plate is composed of at least twelve sector cavities disposed along the circular surface; the tank is a sealing pressure tank composed of a drum and two seal heads; a hollow cylinder concentric with the hollow shaft is arranged in the hollow shaft, an annular cavity is composed of the inner wall of the hollow shaft and the outer wall of the cylinder, longitudinal paths corresponding to the cavity on the filter plate and independent to each other are arranged between the inner wall of the annular cavity and the outer wall of the annular cavity, and each longitudinal path communicates with the corresponding cavity on the filter plate. The machine is also equipped with a swinging spray device. All of the motions of the machine are electrically controlled with high degree of automation. The invention is suitable for the pre-suspension technology, and has advantages of compact structure, big filter area and high yield capacity.

The invention discloses a system and a method for processing rubbish percolate. The system comprises a collecting pool, a middle pool, a vibrating film nano-filtration device and an evaporation device, wherein the vibrating film nano-filtration device comprises a shell, a diaphragm set and a motor; the diaphragm set downward extends, thereby forming a central driving rod; the motor and a belt areused together for driving an eccentric block on the central driving rod to rotate so as to generate a centrifugal force which can trigger vibration; the diaphragm set is driven to vibrate by energy generated from vibration, with the help of the central driving rod; and a shearing force which is generated by high-frequency vibration is spread in a sine form by the surface of a diaphragm in the diaphragm set, thereby efficiently solving a chocking problem of the diaphragm in the diaphragm set, achieving higher capability of resisting diaphragm pollution, realizing simple and efficient treatmentfor the rubbish percolate and achieving a better treating effect. A recycling system which is composed of the collecting pool, the middle pool and the evaporation device is used for continuously and efficiently separating clean liquid from concentrated liquid. The clean liquid meets the standard and is discharged. The concentrated liquid is evaporated and treated by the evaporation device, thereby achieving the purposes of reducing emission and reducing wastes.

A strainer filtering apparatus including a filtering tube providing a substantially larger effective filtering area for its length and width, substantially reducing foreign substances covering a suction surface and flow resistance of the foreign substances, and reducing pressure drop at a cooling water passage. The strainer filtering apparatus includes at least one inlet side into which cooling water is introduced and an outlet side through which the cooling water is discharged, hollow filtering tubes with filtering holes along their lengths, an upper plate having first grooves located at a lower surface and coupled to upper ends of the filtering tubes and an inlet part into which the cooling water is introduced, and a lower plate having punched holes to which lower ends of the filtering tubes are coupled. The cooling water in the filtering tubes is introduced through the punched holes and discharged at the outlet side.

The invention relates to a cloth media filter system which comprises a filter device, a filtrating device and a backwashing device. The filter device comprises a sewage treatment area, a filtered water area and a water drainage area. The filtrating device comprises a plurality of filtrating units regularly arrayed, and each filtering unit comprises a filtering frame, filtering cloth and a filtering cloth support, wherein the filtering frame is a hollow latticed frame, the filtering cloth support is a W-shaped corrugated filtering screen, and the filtering cloth 220 is compactly laid on the filtering screen. The backwashing device comprises a driving power device and a backwashing negative pressure pipeline, the driving power device comprises a driving platform, a driving guide rail and a driving motor, and the backwashing negative pressure pipeline comprises a dredge pump, a sludge conveying pipe, a cleaning header pipe, a cleaning connecting pipe and a W-shaped corrugated sludge suction pipe. A sewage treatment method of the cloth media filter system comprises the steps of filtering, air washing, backwashing water washing and the like. According to the cloth media filter system and the sewage treatment method of the cloth media filter system, the effective filtration area of the filtering device is increased through a corrugated filtering surface and the backwashing component, the working efficiency is high, the water yield is large and water output quality is good.

The invention relates to a stage blowback dust-cleaning method of an air box blowback bag type dust collector, and the air box blowback bag type dust collector, and the method includes the following steps: (1) closing an air exhaust valve of a dust collection bag chamber of the collector, and opening a reverse blow valve; (2) setting the initial wind speed of a back blower to 0.3-2 times as high as the filtering wind speed to blow back the dust collection bag in the dust collection chamber, with blowback time being 0.5-5 s; (3) increasing air quantity of the back blower to 1-5 times as large as the filtering wind speed; (4) continuing to blow back the dust collection bag, with blowback time being 2-60 s, and finishing the dust collection. The stage blowback dust-cleaning method in the invention can enhance blowback dust-cleaning effect of air box blowback bag type dust collector, ensure external surface of the dust collection bag to be thoroughly cleaned, avoid dust deposition phenomenon at bottom of the dust collection bag, and improve dust collection efficiency. In addition, the dust collector used in the stage blowback dust-cleaning method is characterized by simple structure, reasonable design, convenient use, and energy saving.

The invention discloses an automatized and integrated MBR (membrane bioreactor) automatic treatment system for ship sewage, and the system provided by the invention is characterized in that lye and/or black water in a ship are/is filtered by virtue of a quick open type coarse grid tank and then introduced to a sewage adjusting tank, the sewage and less solid substances entering the sewage adjusting tank are pulverized and circulated by virtue of a pulverizing and adjusting pump arranged at the bottom of the sewage adjusting tank and are further filtered by virtue of a quick open type fine grid tank, and the further filtered sewage is elevated to an MBR reaction tank by virtue of the pulverizing and adjusting pump through a water outflow branch pipe; the treated sewage is subjected to biochemical treatment in the MBR reaction tank and then enters into a clean water collecting tube through an MBR membrane, the clean water is disinfected by an ultraviolet disinfector, and the disinfected clean water can be directly introduced to a clean water tank or discharged. The system provided by the invention has the advantages of compact structure, small occupation area, unattended operation, automatic running, simplicity and convenience for maintenance, stable running and suitability for the requirements in ship navigation.

The air filtering net installing structure for indoor unit of air conditioner includes front panel with opening for sucking air on one side and elastic hanging part; air filtering net with frame in the shape corresponding to that of the opening and filtering net to filter air flowing through the opening; and elastic handle formed on the air filtering net in the position corresponding to the elastic hanging part for being hung onto the elastic hanging part. The air filtering net installing structure is easy to assemble and disassemble and may be made via embedded injection process. The air filtering net may be bent along the support ribs to increase filtering area and raise filtering efficiency.

The invention discloses an over-frequency vibrating separator and a separating system. The over-frequency vibrating separator comprises a casing, a membrane set and a motor. A central driving rod is extended from the membrane set and is equipped with an eccentric block and first flange at a lower end thereof; an output terminal of the motor is provided with a second flange which is flexibly connected with the first flange through a belt. Thereby, the motor drives the eccentric block on the central driving rod to conduct eccentric exercise in order to initiate swing, and energy generated from swing promotes vibration of the membrane set through the central driving rod; when a rotating speed of the motor reaches a frequency required by a resonance environment, the vibrating amplitude of themembrane set reaches the maximum, and the shearing force generated by the membrane set transmits in a sine mode through diaphragm surfaces in the membrane set, so as to effectively solve a problem ofdiaphragm stagnation in the membrane set. The over-frequency vibrating separator, a charge pump, a charging cylinder and a filtering hydraulic cylinder form a separating system in order to separate afiltrate continuously and effectively and realize a higher sewage recovery utilization rate; meanwhile, a lot of energy can be saved to bring good economic and social benefits for an enterprise.

An improved air cleaner assembly for large displacement stationary engines provides for an included environmentally friendly disposable filter element containing substantially no chlorine compounds or structural metal supports which upon incineration or landfilling become undesireable chemical compounds. Improved sealing results by creating novel gasket compression control both radially and by a face seal by use of permanent metal components which are not discarded as before. Excessive compression of the gasket material is prevented by structure integral to the air cleaner assembly, and support of the filter element is external within the air cleaner assembly rather than internal within the filter element, thus eliminating the manufacturing cost of metal components previously discarded as integral to the filter element upon replacement of the disposable filter element.

The invention relates to a self-cleaning pulse air strainer with the partition board box-type filter element, the net locates outsides, and the frame sited all around, in the frame there is a draught excluder strip, some partition boards locate in the center of the filter element, and the filter paper is between the partition boards. The partition board is made by the aluminum handkerchief with a tile-edge form, the contour of it has a square shape module type, which can intercept the dust granule effectively, and not form the oversized resistance to the air current, and the filter fineness can achieve 0.3mum. The partition board box-type filter element with 80% textile fibers, 20% polyester synthesis filter paper has a belt partition board's box-type filter element which the filter fineness progressive raises, this partition board uses the aluminum handkerchief to make the corrugated shape, which enhances filter paper's effective filtration area, reduces the low resistivity rate, and increases accommodates the quantity of dust, it solves the problem of losing the filter efficiency because of the combination of the filter paper along with the increasing pressure. The textile fiber polyester composition material can filter effectively the tiny dust pellet and let it on the material surface, which strengthens the effect of clearing ash by pulse, and lengthens the filter element's life.

The invention provides a dustproof mouth mask with a dynamic breathing function for a dust work environment. A filter material of the dustproof mouth mask adopts corrugated filter sponge, the adopted corrugated angle theta of the filter material is less than 60 DEG, a corrugated generating line is parallel to the gravity direction, and an air outlet and the downstream part of the filter material at an air inlet of the mouth mask are provided with a high-speed centrifugal fan respectively. On the premise of meeting the air flow for breathing of a human body, the effective filter area of the filter material is increased, the air speed is reduced, the flow resistance of the filter material is reduced, and the inhalation resistance is reduced. A micro electric air supplying and exhausting system and the micro high-speed centrifugal fan are adopted; and the requirement of the pressure in the inhaling process of the human body can be fully met, and the increment of the pressure in the inhaling process of the human body is controlled to be in the reasonable range at the same time. The breathing pressure difference of the novel mouth mask is controlled to be within 30 Pa, the structure design and the control of the whole system are simplified while the safety is met and the comfort is improved, and the mouth mask is small in volume, light in weight and convenient to carry.