105results about How to "Avoid clogging the filter" patented technology

Systems and methods for extracorporeal processing of blood or other body fluid for the treatment of conditions, such as sepsis, autoimmune disease, or toxemia related to kidney failure, liver failure, or drug overdose are provided. In an extracorporeal treatment system, a fraction of a body fluid is passed into a treatment fluid, at least a portion of which is then passed through a sorbent suspension reactor for treatment by a sorbent suspension. The treatment fluid circuit can be maintained at a fixed volume, which enables accurate fluid balance between the patient and the extracorporeal circuit. Some or all of the treatment fluid, optionally also containing nutrients and / or therapeutic agents, is returned to the patient. In a peritoneal dialysis system, dialysate is passed into a patient's peritoneal cavity, recovered from the cavity, passed through a sorbent suspension reactor in accordance with the invention, and returned to the cavity.

Systems and methods for extracorporeal processing of blood or other body fluid for the treatment of conditions, such as sepsis, autoimmune disease, or toxemia related to kidney failure, liver failure, or drug overdose are provided. In an extracorporeal treatment system, a fraction of a body fluid is passed into a treatment fluid, at least a portion of which is then passed through a sorbent suspension reactor for treatment by a sorbent suspension. The treatment fluid circuit can be maintained at a fixed volume, which enables accurate fluid balance between the patient and the extracorporeal circuit. Some or all of the treatment fluid, optionally also containing nutrients and / or therapeutic agents, is returned to the patient. In a peritoneal dialysis system, dialysate is passed into a patient's peritoneal cavity, recovered from the cavity, passed through a sorbent suspension reactor in accordance with the invention, and returned to the cavity.

The invention discloses a wax extraction automatic filtration and backwashing system used for Fischer-Tropsch synthesis slurry reactor, comprising a filter unit and a backwashing unit, wherein, the filter unit comprises a slurry buffer tank, a wax device external filter (30), a coarse wave outcome buffer tank (4), a wax fine filter (5) and a wax product buffer tank (6); and the backwashing system comprises a washing wax pump (7) and a backwashing wax buffer tank (8). The wax extraction automatic filtration and backwashing system has the advantages of reasonable structure, short flow, low energy dissipation, avoiding the blocking or reverse flowing, reducing the damage of catalyst grains, and achieving the stable and continuous running of the Fischer-Tropsch synthesis slurry reactor.

A method is provided for detecting filter clogging which are able to keep track of the filter clogging with precision and in detail. At least one pressure selected from the group consisting of a pressure Pa in a blood inflow portion (32a), a pressure Pv in a blood outflow portion (32b), a pressure Pf1 in a filtrate inflow portion (32c), and a pressure Pf2 in a filtrate outflow portion (32d) is measured continuously, then a variation (pressure waveform) of the pressure is analyzed, a clogging of a filter (32) is detected using the analyzed result. Thereby a clogging of a filter is detected early. As a result, it is possible to prevent from developing of the filter clogging by controlling a dosage amount of anti-coagulant properly and changing a flow rate of blood. The variation of the pressure wave may be analyzed by subjecting the variable to Fast Fourier Transform.

A system for subatmospheric pressure therapy in connection with healing a wound includes a wound dressing adapted for positioning relative to a wound bed and a subatmospheric pressure mechanism. The subatmospheric pressure mechanism includes a housing; a vacuum source in the housing and associated with a vacuum port; a collection canister defining an internal chamber in fluid communication with the vacuum source through the vacuum port and with the wound dressing for collecting exudates removed from the wound bed; a hydrophobic filter in fluid communication with the vacuum source and the internal chamber of the collection canister; and a screen disposed proximally of the filter. The filter is adapted to prevent exudates from reaching the vacuum source while allowing passage of air to the vacuum source.

A microfluidic arrangement for extracting and optionally processing an extract from a sample and for transferring the extract in flowable form to a microfluidic chip using an extractor with a compressible extraction chamber and at least one opening thereof, a reactor that has a reaction chamber, an inlet opening that communicates with the at least one opening of the extractor, wherein the two openings define a flow path between the chambers, an outlet opening for fluidically connecting to the microfluidic chip and a ventilation opening of the reaction chamber, and having a filter arrangement installed in the flow path between the extractor and the reactor. A lab-on-a-chip system with such a microfluidic arrangement and a microfluidic chip that is rigidly connected to the reactor.

When an estimated value (A value) of an accumulation amount in a filter for trapping particulate matter reaches a prescribed value A1 corresponding to a prescribed accumulation amount Qm of the particulate matter and ash (S12), the forced regeneration of the filter is performed (S20); and when the estimated value (A value) reaches the prescribed value A1 again before the elapsed time since the completion of the forced regeneration of the filter reaches a prescribed time period T1 (S12, S14), it is judged that the amount of the ash accumulated in the filter is equal to or larger than a regulation amount (cleaning is required).

A liquid ejecting head comprising, a plurality of nozzle openings, a first flow passage, a circulation flow passage, a filter chamber, and a bypass flow passage, an inner diameter of the bypass flow passage is larger than a diameter of the hole of the filter, the inner diameter of the bypass flow passage is larger than a diameter of the nozzle opening, and a flow passage resistance of the bypass flow passage is larger than a flow passage resistance of the circulation flow passage from a branch point where the bypass flow passage branches from the supply passage to a junction point where the bypass flow passage merges into the collection passage.

Flaky particles of the present invention have a particle size distribution in which a value of D90 / D10 is at least 2.0 but not more than 3.0, a value of D10 is at least 4.7 μm but not more than 25 μm, and a maximum particle diameter is 90 μm or less, where D10 is defined as a particle diameter at which a cumulative volume of particles reaches 10% when counted from the smaller side, and D90 is defined as a particle diameter at which a cumulative volume of particles reaches 90% when counted from the smaller side. A luster pigment of the present invention contains flaky particles and at least one selected from a metallic layer and a metallic oxide layer that are formed on at least a part of the surface of each of the flaky particles. The luster pigment has a particle size distribution in which a value of D90 / D10 is at least 2.0 but not more than 3.0, a value of D10 is at least 4.7 μm but not more than 25 μm, and a maximum particle diameter is 90 μm or less, where D10 is defined as a particle diameter at which a cumulative volume of particles reaches 10% when counted from the smaller side, and D90 is defined as a particle diameter at which a cumulative volume of particles reaches 90% when counted from the smaller side.

A microfluidic arrangement for extracting and optionally processing an extract from a sample and for transferring the extract in flowable form to a microfluidic chip using an extractor with a compressible extraction chamber and at least one opening thereof, a reactor that has a reaction chamber, an inlet opening that communicates with the at least one opening of the extractor, wherein the two openings define a flow path between the chambers, an outlet opening for fluidically connecting to the microfluidic chip and a ventilation opening of the reaction chamber, and having a filter arrangement installed in the flow path between the extractor and the reactor. A lab-on-a-chip system with such a microfluidic arrangement and a microfluidic chip that is rigidly connected to the reactor.

Disclosed are a composition for preventing clogging of oil filters for various internal combustion engines, the composition comprising at least one hydroxyl-containing component selected from the group consisting of:compounds represented by the formula (1) wherein R1 is hydrogen or C1 to C8 alkyl, R2 is C2 to C10 alkylene, m is an integer of 1 to 10, and when m is 2 or more, the two or more R2 groups may be the same or different; andcompounds represented by the formula (2) wherein R3 is C2 to C4 alkylene, R4 is hydrogen or C1 to C10 alkyl, n is an integer of 0 to 8, and when n is 2 or more, the two or more R3 groups may be the same or different; a method for preventing oil filter clogging using the composition, and an engine oil composition containing the composition.

A method is provided for detecting filter clogging which are able to keep track of the filter clogging with precision and in detail. At least one pressure selected from the group consisting of a pressure Pa in a blood inflow portion (32a), a pressure Pv in a blood outflow portion (32b), a pressure Pf1 in a filtrate inflow portion (32c), and a pressure Pf2 in a filtrate outflow portion (32d) is measured continuously, then a variation (pressure waveform) of the pressure is analyzed, a clogging of a filter (32) is detected using the analyzed result. Thereby a clogging of a filter is detected early. As a result, it is possible to prevent from developing of the filter clogging by controlling a dosage amount of anti-coagulant properly and changing a flow rate of blood. The variation of the pressure wave may be analyzed by subjecting the variable to Fast Fourier Transform.

An electric vacuum cleaner has a dust collecting section for removing dust and an electric air blower mounted in its main body and comprises a filter for removing dust from air sucked into the dust collecting section by driving the electric air blower, and a disposable filter can be arranged on the upstream side of the filter.

The invention relates to the technical field of fire protection, and discloses a sewage treatment device for fire protection, which includes a device body, a water inlet pipe is fixedly installed on the left side of the top of the device body, and a fixed plate is fixedly connected to the left side of the device body. A first motor is fixedly connected to the top of the fixing plate. Under the action of the first motor, the fire-fighting sewage treatment device can effectively crush the relatively large impurities and waste materials pumped into the water inlet pipe, avoiding the large impurities and waste materials from clogging the filter plate and affecting the flow of water. It can filter the crushed waste, and the filtered waste and silt leak into the bottom of the first partition through the leak hole for isolation, and can filter the smaller impurities and waste again. Under the action, it can clean the impurities and waste materials adhering to the filter net, avoiding the situation that the impurities and waste materials are filtered too much to block the filter net, and ensure the efficiency of equipment filtration.

An electric vacuum cleaner has a dust collecting section for removing dust and an electric air blower mounted in its main body and comprises a filter for removing dust from air sucked into the dust collecting section by driving the electric air blower, and a disposable filter can be arranged on the upstream side of the filter.

A merge and discharge unit has: a reservoir unit in which fuel can be collected; a first merge unit for merging into the reservoir unit the fuel from an upstream site upstream of the merge and discharge unit on a fuel supply route; a second merge unit for merging into the reservoir unit the fuel from a first fuel return route; a first discharge unit for discharging a portion of the fuel of the reservoir unit into a downstream site downstream of the merge and discharge unit on the fuel supply route; and a second discharge unit for discharging a remaining portion of the fuel of the reservoir unit into a second fuel return route.

The invention discloses a heating device of a diesel oil filter. In a technical scheme provided by the invention, the heating device of the diesel oil filter comprises a heating base and a shunting device, wherein the heating base is internally provided with a heating pipe; by means of a heat exchange effect between ceaseless hot water in the heating pipe and diesel oil in an oil filter shell, the temperature of the diesel oil to be introduced into an engine combusting system is increased, so that high-grade fuel oil under a low-temperature environment can be prevented from the phenomena of thickness and even wax precipitation to block a filter screen. The heating base not only has a heating function but also has sealing, mounting and other functions as common filter top cover. The heating device disclosed by the invention has the advantages of ingenious conception, simple structure, good sealing performance, low cost, superior performance, convenience in use, energy-saving and emission-reduction performance, and the like.

A substrate treating apparatus for treating substrates having a film coating. The apparatus includes a treating unit for treating the substrates with a treating solution, a drain pipe for draining the treating solution from the treating unit, a filter mounted on the drain pipe, and an ultraviolet emitting unit for the filter for emitting ultraviolet light to the treating solution flowing through the filter.

The invention discloses a two-channel air purifier. The two-channel air purifier is composed of a water tank, ventilation channels and a machine base, wherein the water tank is located above the left of the ventilation channels and the machine base is located below the ventilation channels. The ventilation channels comprise the air inlet channel and the air exhaust channel, wherein the air inlet channel and the air exhaust channel are uniform in size. The air inlet channel is sequentially provided with an air inlet fan, a water-absorbing cotton filtering layer, an air water-filtering partition plate, a drying chamber and a negative ion generation chamber from left to right. The air exhaust channel is sequentially provided with a water-absorbing cotton filtering layer and an exhaust fan from left to right. The water tank is divided into an upper layer and a lower layer by a partition plate, and the partition plate is provided with a valve. A plurality of small holes are formed in the bottom of the lower layer of the water tank, and the bottom of the lower layer of the water tank is connected with water-absorbing cotton of the air inlet channel and water-absorbing cotton of the air exhaust channel. The two-channel air purifier can effectively remove PM2.5 solid particles and harmful gas in air, regulate the air humidity and promote oxygen aeration.

Nowadays many electronic devices, such as LCD projector, computer servers, and air fresher etc. require reliable air cooling system to reduce the risk of electronics damage caused by overheating. The present invention disclosed an apparatus integrated with air flow sensor as an alarm apparatus for air flow clog detection. The major prior approach for air flow circulation failure detection is based on an indirect measurement method of temperature monitoring on surrounding environments, which method is suffering from the slow response and poor identification of real-time situation. The present invention will demonstrate the advantages by directly monitoring air flow over by indirectly monitoring the surrounding temperature as for the purpose of preventing air flow path clog.

The invention discloses a farm excrement processing device. The farm excrement processing device comprises a preprocessing assembly, a driving motor, a processing assembly, a collecting box, a PLC andan electric control cabinet and is characterized in that the processing assembly is arranged, excrement on a conveying belt is flattened through a scraper blade, the excrement is sterilized and disinfected through an ultraviolet lamp, and a heating piece is powered on to operate to dry the excrement; compared with the mode of drying the excrement in the open air, the excrement processing efficiency and processing quality are improved, and a large amount of labor force and time are saved; by arranging the preprocessing assembly, the excrement enters a preprocessing box from a feeding port, solid-liquid separation of the excrement is achieved through a filter screen, waste liquid in the excrement flows into the lower portion of the interior of the preprocessing box, the excrement falls ontothe conveying belt of the processing box, and excrement processing operation is facilitated; by arranging a filter assembly, the driving motor drives a cam to rotate, the cam periodically impacts a left end plate, particles attached to the upper portion of the filter screen move downwards, and the phenomenon that the filter screen is blocked is avoided.

A fuel injection control device that prevents a misfire is provided. The fuel injection control device comprises: target injection amount determination means 3 for determining a target injection amount of each fuel injection, so that the amount of fuel to be supplied to a cylinder in one combustion cycle is supplied in a plurality of fuel injections; and fuel injection correction amount determination means 4 for determining a fuel correction amount of one combustion cycle, wherein the fuel injection correction amount determination means 4 distributes the correction amount among each fuel injection in accordance with the ratio of a target injection amount of each fuel injection in the cylinder.

The invention belongs to the technical field of edible vegetable oil products, in particular to a method for producing corn oil. The method is mainly used for solving the technical problems that the whole productive technology can not realize full-automation, labor intensity of workers is high, quality of refined oil products is unstable, and the maintenance of a plate-and-frame filter press is troublesome when the plate-and-frame filter press is used for filtering the corn oil currently. The technical scheme of the method is as follows: (1) drying corn germs; (2) crushing the dried corn germs by using a roll crushing machine; (3) moistening the crushed corn germs with water until moisture content reaches 5-6%, and then preparing into oil cakes; (4) putting the oil cakes into an oil press, and pressing oil at a temperature of 100-110 DEG C to prepare into corn crude oil; and (5) filtering the corn crude oil by using a horizontal decanter centrifuge at revolving speed of 3000-5000rpm to obtain the corn oil. The method disclosed by the invention has the advantages of simple technological conditions, low labor intensity of the workers, stable quality of the refined oil products and simple maintenance and the like, and being capable of realizing full-automatic production.

The invention discloses a domestic sewage treatment device. The invention mainly aims to solve the problems that an existing domestic sewage treatment device is poor in purification effect and low in efficiency, and a filter box is easily blocked by solid pollutants. The domestic sewage treatment device comprises a bottom plate, wherein four universal wheels are installed at the bottom of the bottom plate, a filter box and a disinfection box are arranged on the upper surface of the bottom plate side by side, a settling box is arranged in the filter box in a sliding mode, a magnet is installed in the settling box, a filter tank is formed between the filter box and the disinfection box, a screen is installed in the filter tank, a discharging groove is formed in the top of the side, close to the screen, of the settling box, a supporting block is arranged at the bottom of the settling box, a partition plate is installed in an inner cavity of the filter box, and a bolt is vertically installed on the upper surface of the partition plate. The domestic sewage treatment device is simple in structure and convenient to operate, solid impurities in sewage are precipitated and collected through the settling box, and treatment efficiency is high.

A separator fractionates a dispersion of cells including cells having phagocytic activity corresponding to a size of the cells to obtain a dispersion in which the content of the cells having phagocytic activity is higher than that of the dispersion, and includes a filter, at least part of the filter having a hydrophilic surface as a result of being covered with at least one of a self-assembled monolayer that includes an alkanethiol having a nonionic hydrophilic group that is formed on a gold thin film via a sulfur-gold bond, and a homopolymer or a copolymer of an ester of (meth)acrylic acid and at least some of hydrophilic groups of phospholipids that form a biomembrane. The separator is thus configured so that clogging of the filter is suppressed, and the separation efficiency is improved.

The invention discloses a filling machine and a filling head. The filling head comprises a hollow valve head body, wherein an opening communicated with the internal cavity of the valve head body is formed in the upper end of the valve head body; an upward bulge is arranged on the inner wall of the lower end of the valve head body; an outlet communicated with the internal cavity is formed in the bulge; a clamping block is arranged in the internal cavity and comprises a connecting part, a first covering part and a second covering part which are connected in sequence; the connecting part is connected with the upper end of the valve head body; an inlet matched with the opening is formed in the connecting part; the first covering part is arranged above the bulge; the second covering part is arranged on the side edge of the bulge. As the outlet is formed in the bulge on the inner wall of the lower end of the valve head body, filling liquid remained in the internal cavity is blocked by the outer wall of the bulge and cannot flow out of the outlet when the filling operation is stopped, so that the dripping leakage of the residual liquid is effectively prevented; a filter net does not need to be arranged and the phenomenon of blocking the filter net by pulp and fibers cannot be caused.

The invention discloses an adjustable rolling-type sand and stone screening device, relates to the technical field of screening devices. The adjustable rolling-type sand and stone screening device mainly aims to solve the problems that a traditional screening device needs to turn over to discharge stones and the operation is inconvenient. The screening device comprises a screening through groove and a base substrate, wherein the inside of the screening through groove is provided with a plurality of parallel rotating round rods; the upper portion of each rotating round rod is provided with a baffle; the end portion of each rotating round rod extending out of the side wall of the screening through groove is provided with a driving gear; the sides of the screening through groove are providedwith racks engaged with the plurality of driving gears; and one end of the screening through groove is provided with a power assembly for driving the racks to horizontally reciprocate. The adjustablerolling-type sand and stone screening device is simple in structure, capable of avoiding filter screen type blockage, capable of adjusting the particle size of sand screening, simple, convenient and fast to operate and high in practicability.

The invention relates to the technical field of sewage treatment and discloses a novel sewage filter of a textile machine. The sewage filter comprises a primary filter tank, secondary filter tanks andwater outlet tanks, wherein a first filter screen is arranged between the primary filter tank and each of the two secondary filter tanks; second filter screens are arranged between the two secondaryfilter tanks and the two water outlet tanks; a first stirring motor is arranged on the top of the primary filter tank; a second stirring motor is arranged on the top of each secondary filter tank; a third stirring motor is arranged on the top of each water outlet tank; and a water pump is fixedly arranged on one side of each water outlet tank and communicates with the corresponding water outlet tank and the primary filter tank. According to the novel sewage filter of the textile machine, a first rotating column and cleaning devices are arranged in the primary filter tank, the first stirring motor works and rotates to drive the cleaning devices to rotate, and bristles scrub dirt on the first filter screens, so textile particles and floccules are washed to a position near a blow-off pipe A from the first filter screens and are thus prevented from blocking screen holes of the first filter screens.

The invention belongs to the technical field of metal cutting fluids, and particularly relates to a water-based metal cutting fluid and a preparation method thereof. The preparation method includes the steps that S1, putting diethylene glycol borate, polyethylene glycol, sodium benzoate, trisodium phosphate, simethicone, sulfurized calcium alkyl phenolate and deionized water into a stirrer according to the proportion, increasing the temperature to 75-85 DEG C, and stirring for 8-12 minutes; s2, firstly reducing the temperature in the stirrer to 45-50 DEG C, then putting triethanolamine, vegetable oil, poly-silyl ester, methyl butynol and a dispersing agent into the stirrer in proportion, and stirring for 30-35 minutes; and S3, taking out the mixture in the stirrer, putting into a filter, filtering by using a 200-mesh filter screen, and discharging to obtain the cutting fluid product. According to the water-based metal cutting fluid and the preparation method thereof, the problems that when a solution is filtered, a filter screen is generally adopted for direct filtering, but when the filtering requirement for the solution is high, holes of the filter screen are small, so that the filtering efficiency is low, and even the filter screen is blocked and liquid cannot be discharged occur are solved.