31results about How to "Reliable purification" patented technology

An irrigated finned ablation head that provides enhanced cooling. The irrigated finned ablation head comprises a plurality of radial fins that are distributed about a central axis and that extend axially from a common base. The plurality of fins are arranged to define a central passageway along the central axis, as well as a plurality of slots therebetween, the slots extending in an axial direction along the irrigated finned ablation head. In one embodiment, the central passageway extends through the irrigated finned ablation head, defining an opening at the distal extremity, with the slots extending from the base to the opening. In another embodiment, the irrigated finned ablation head includes a cap portion at a distal portion that is common to all the radial fins, so that the slots are terminated at the distal portion of the irrigated finned ablation head. The radial flow distribution along the central axis can be tailored by the configuration of the central passageway.

The invention relates to a plasma air purification method for sterilizers. A casing is included; an air inlet and an air outlet are formed in the casing; an electrostatic dust collection filter screen is arranged at the air inlet; an adsorption device with filtering holes is arranged at the air outlet; a plasma generation chamber is arranged inside the casing between the air inlet and the air outlet; a plasma generation device is mounted in the chamber, and at least includes two parallel comb-shaped plate electrodes; a discharge zone is formed between the adjacent plate electrodes; one of the adjacent plate electrodes is connected with a power source, and the other of the adjacent plate electrodes is connected with the ground; the comb-shaped plate electrode near to the casing wall in the plasma generation device is connected with the inner wall of the casing, at the end near to the air inlet, through a guide plate. Through the arrangement of the plasma generation device, air entering a sterilization room can be reliably sterilized and purified, the clearance between the adjacent comb-shaped plate electrodes is big, and the air return ratio is high; besides, diameters of the filtering holes of the air inlet and the air outlet are well adapted, the disassembly and cleaning are easy, and the service cycle is long.

Provided is a washing machine capable of saving water, sterilizing and deodorizing. In the washing machine (1), a drum (3) and a tank (4) are provided inside a housing (2) and also an ozone generator (40) is provided. The ozone generated in the ozone generator (40) is supplied through a first supply path (42) and an ejector (32) so as to clean the used water accumulated in the tank (4) in a tightly sealed structure. Also, in order to deodorize and disinfect clothes in a drying process inside the drum (3), it is supplied from a second supply path (44) through a drying air path (15) to the drum (3).

A catalyst degradation determination device is provided that can determine the degradation of a selective reduction catalyst with high precision while also suppressing a temporary decline in purification performance. By way of controlling a urea injection device, the catalyst degradation determination device increases, in a selective reduction catalyst in a state in which the storage amount is a maximum, the storage amount thereof by a detection reduced-amount portion DSTNH3<sub2>—< / sub2>JD, and then decreases the amount until it is determined that ammonia slip has occurred. Then, degradation is determined based on the time at which the slip determination flag FNH3<sub2>—< / sub2>SLIP was set to “1” when fluctuating the storage amount. The detection reduced-amount portion DSTNH3<sub2>—< / sub2>JD is set to a value that is larger than the storage capacity of the selective reduction catalyst in a degraded state and smaller than the storage capacity of the selective reduction catalyst in a normal state.

A method of biologically purifying waste water, said method including the following steps in the following sequence a) an aeration step for stripping off H2S and other gases and for removing bactericides from the water, b) a step of decomposing organic matter, c) a sludge precipitation step, d) a clarification step and e) a nitrification step followed by a completing secondary settling step. This method is carried out in a plant, preferably a mini purification plant of the type “immersed aerated bio filter plant” for purifying waste water from households without connection to a sewage system. The plant includes an aerated settling tank (1), a unit for decomposing organic matter (2), a first sludge precipitation unit (5), a nitrification unit (8) and a completing sludge settling unit (5′). The primary settling unit includes means for providing aeration.In this manner, it is rendered possible to obtain such an improved nitrification that it is possible to keep well below the limits stipulated by the authorities for the ammonia / ammonium content in waste water.

The invention relates to a plasma air purification method for sterilizers. A casing is included; an air inlet and an air outlet are formed in the casing; an electrostatic dust collection filter screen is arranged at the air inlet; an adsorption device with filtering holes is arranged at the air outlet; a plasma generation chamber is arranged inside the casing between the air inlet and the air outlet; a plasma generation device is mounted in the chamber, and at least includes two parallel comb-shaped plate electrodes; a discharge zone is formed between the adjacent plate electrodes; one of the adjacent plate electrodes is connected with a power source, and the other of the adjacent plate electrodes is connected with the ground; the comb-shaped plate electrode near to the casing wall in the plasma generation device is connected with the inner wall of the casing, at the end near to the air inlet, through a guide plate. Through the arrangement of the plasma generation device, air entering a sterilization room can be reliably sterilized and purified, the clearance between the adjacent comb-shaped plate electrodes is big, and the air return ratio is high; besides, diameters of the filtering holes of the air inlet and the air outlet are well adapted, the disassembly and cleaning are easy, and the service cycle is long.

An inlet chamber 40 and outlet chamber 50 for exhaust gas are integrated as an inflow / outflow section 80, and a first post treatment device 10 equipped with a DPF 13 at its central portion and second post-treatment device 20 equipped with a urea DeNOx catalyst 23 on its outer periphery side are integrated as a catalyst installation section 70. The catalyst installation section 70, the inflow / outflow section 80, and a communication chamber forming section 30 are provided separately and detachably from one another, and the catalyst installation section 70 is made installable in a reversible manner. As a result, by reversing the catalyst installation section 70, it is possible to easily reverse the DPF 13 without having to extract it from the central part. Further, since the urea DeNOx catalyst 23 is reversed simultaneously, it is possible to change the direction in which the exhaust gas flows therein, thereby enabling to prevent unbalanced deterioration of the urea DeNOx catalyst 23.

An extracorporeal blood treatment machine for carrying out a blood treatment including a machine front on which a hollow fiber filter module is arranged in a horizontal position, which hollow fiber filter module includes a cylindrical housing, a blood chamber having a blood inlet nozzle and a blood outlet nozzle and a solution chamber having a solution inlet nozzle extending transversely to the longitudinal direction of the hollow fiber filter module and a solution outlet nozzle extending transversely to the longitudinal direction of the hollow fiber filter module, the solution chamber being semi-permeably communicated at least in portions with the blood chamber, wherein a height potential is present in the horizontal position between the solution inlet nozzle and the solution outlet nozzle so that drainage of solution is enabled via one of the solution nozzles and evacuation of air bubbles is enabled via an other of the solution nozzles.

Gas engine arrangement having a gas engine, a gas rail, via which a first gas in the form of fuel gas can be supplied to at least one gas metering device of the gas engine, and a gas control section, which is designed to supply fuel gas to the gas rail via a supply path on the outflow side. A purge line is passed into the gas rail. The gas engine arrangement is designed to selectively supply fuel gas or a second gas to the purge line, and the gas engine arrangement is designed to displace gas from the gas rail and to discharge it via the supply path when the fuel gas or second gas is supplied to the purge line.

The invention relates to a method for operating a tail gas quality flow sensor, and particularly relates to a method for operating a tail gas quality flow sensor in automobile tail gas quality flow. The tail gas quality flow sensor is operated in an operation mode and at an operation temperature and is converted into a purification mode for purifying a measuring area (32), wherein a purification temperature is higher than the operation temperature; the tail gas quality flow sensor is connected with a control device (28); the purification mode is activated through the control device (28) according to characteristic data; and moreover, the heating time of the tail gas quality flow sensor is taken as the characteristic data.

The invention discloses a ceramic wastewater treatment method and a ceramic wastewater treatment device, which are characterized in that ceramic wastewater is collected in a wastewater settling pond firstly, so that large granular solids are settled in the wastewater settling pond; then, wastewater subjected to preliminary settling is pumped to an efficient precision treater to be filtered through a wastewater pump; clean water produced by filtering is conveyed to a clean water pond to reuse; after filtered objects accumulated by the efficient precision treater reach a certain amount, back-wash clean water is fed into the efficient precision treater, and sludge washed out is guided into a sludge pool. Compared with existing technologies, the ceramic wastewater treatment method and device disclosed by the invention have an advantage of efficiently, rapidly and reliably purifying ceramic wastewater.

The invention relates to an intelligent urban greening wall capable of purifying air. The wall comprises a wall body, a greening mechanism, an air purifying mechanism and a center control mechanism, the air purifying mechanism comprises an air inlet tube, an air guiding tube, a purifying module, a precipitation tank and an air outlet tube, the purifying assembly comprises a plurality of nozzles and a driving unit, the center control mechanism comprises a central control module, a temperature detection module, a motor control module, a wireless communication module, a voice control module, a display control module, a button control module, a state indicating module and a working power supply module, and the working power supply module comprises a working power supply circuit. The air purifying mechanism can reliably purify air, and also can provide air blast cooling service for pedestrians, so the practicality of the greening wall is improved; and the working power supply circuit plays a role in buffering when load changes, so the working stability of the greening wall is improved.

The invention relates to an embedded type air purifier. The embedded type air purifier comprises a face plate, wherein the face plate is connected with a filter assembly through connecting members; the filter assembly is mounted at an opening of a shell body, a centrifugal fan is mounted in the shell body, and a ventilation hole is formed in the side face of the shell body; the face plate is of a square structure and comprises a plurality of square frames which are of concentric arrangement and different sizes, a sound insulating panel is arranged in the center of the face plate, reinforcing ribs extend out of four corners of the sound insulating panel, and the square frames are connected by the reinforcing ribs; and a gap is formed between every two adjacent square frames, no room ceiling board exists between the face plate and the filter assembly, a window is formed in a ceiling board, the face plate is mounted on the lower surface of the window, and the filter assembly is mounted on the upper surface of the window. According to the embedded type air purifier, purification can be carried out reliably, the volume is small, the space is saved, the arrangement is facilitated, and a space in a hung ceiling can be subjected to circulating ventilation utilization.

The invention relates to the technical field of food and enzyme engineering, in particular to a method for purifying polygalacturonase by galacturonic acid magnetic nanoparticles, which uses a GltMNP nano composite material to purify exo-PG from fermentation culture of apple pectin, and verifies successful combination of galacturonic acid (Glt) and magnetic nanoparticles (MNP) through FTIR research. Although many methods can purify exo-PG, the present invention can enhance the stability and homogeneity of the enzyme as compared to other methods that are inexpensive, efficient, reliable and purified with minimal enzymatic activity loss, the purified exo-PG emerging in a single band of 66 kDa. The purified exo-PG is used for fruit juice treatment of apples, peaches and guavas, the fiber texture of pulp can be further reduced, the viscosity of the juice is lower, and the purified exo-PG can be used for industrial-scale food processing.

The invention relates to a catalyst for treating ammonia leakage of a selective catalytic reduction device and a preparation method of the catalyst. The catalyst comprises a carrier, and an inner active coating and an outer active coating which are sequentially coated on the surface of at least part of pore channels of the carrier. The inner active coating and the outer active coating are coated on the surface of at least part of the pore channels of the catalyst carrier to form a double-active-coating structure, the inner active coating can oxidize NH3 leaked by the SCR device into NOx, and efficient and reliable purification of the NH3 leaked by the SCR device is achieved; meanwhile, the SCR catalytic active component of the outer active coating can catalyze the NOx generated by NH3 oxidation and the SCR reaction between the unpurified NOx of the SCR system and the remaining leaked NH3, and therefore efficient collaborative purification of the leaked NH3 of the SCR device and the unpurified NOx is further achieved.

　In this internal combustion engine, an exhaust purification catalyst and a hydrocarbon supply valve are disposed within an exhaust passage. If the temperature of the exhaust purification catalyst belongs to a first catalyst temperature range (I), a first NOx purification method is performed. If the temperature of the exhaust purification catalyst belongs to a second catalyst temperature range (II), a second NOx purification method is performed. If the temperature of the exhaust purification catalyst belongs to a range (IIP), which is within the second catalyst temperature range and near the first catalyst temperature range, the temperature of the exhaust purification catalyst is raised so as to shift the range to which the temperature of the exhaust purification catalyst belongs to the first catalyst temperature range, and the NOx purification method to be used also switches from the second NOx purification method to the first NOx purification method as a result.

The invention relates to an intelligent city green wall capable of air purification, comprising a wall body, a greening mechanism, an air purification mechanism and a central control mechanism. The components include a number of nozzles and drive units. The central control component includes a central control module, a temperature detection module, a motor control module, a wireless communication module, a voice control module, a display control module, a key control module, a status indication module and a working power supply module. The module includes a working power supply circuit. In the intelligent urban green wall capable of air purification, the air purification mechanism can not only achieve reliable purification of the air, but also provide pedestrians with a cooling service, which improves the practicability of the green wall ; Not only that, in the working power supply circuit, when the load changes, the circuit can be buffered, thereby improving the stability of the green wall.

The invention relates to a nano enameled water purification tank and a processing method thereof. The nano enameled water purification tank comprises a tank body, a cover and a water purification mechanism, wherein enamel coatings are arranged on inner walls and outer walls of the tank body; the water purification mechanism comprises a fixing shaft and a water purification cylinder; a cleaning mechanism comprises a circular floating body; and a water taking mechanism comprises a connecting pipe, a fixing block and a water pipe. According to the nano enameled water purification tank, the water purification tank is designed to be of an opened tank type, a cold-rolled sheet subjected to one-time stretch forming is taken as a main body material of the tank body, and the nano enamel coatings are sprayed on the inner and outer walls of the tank body and baked and cured so as to obtain a finished product, so that the water purification tank has the effects of retaining freshness, inhibiting bacteria and preventing deterioration, and due to the opened design, convenience is brought to maintenance; water can be reliably purified by the water purification mechanism, and by matching with the cleaning mechanism, the purification effect is improved, and the service life of the water purification mechanism is prolonged; and moreover, according to the water taking mechanism, the water in the water purification mechanism can be flexibly extracted, the water taking mechanism can be conveniently detached, and the practicality of the water purification tank is improved.

To provide a method for purifying an antibody to a sufficient degree of purity for therapeutic use in humans by removing impurities contained in a solution efficiently while reducing production cost and the purification period in the purification of the antibody. It was found that an antibody can be reliably purified to a high degree of purity by an activated carbon material, regardless of the amounts or species of impurities co-present, and that high viral clearance can be attained reliably. Based on the finding, a treatment with an activated carbon material could be used in place of AEX chromatography achieving viral clearance in a step of purifying a therapeutic antibody using CHO cells. As a result, an antibody can be simply and effectively purified to a sufficient degree of purity for therapeutic use in humans compared to a conventional purification method, while reducing production cost.

The invention discloses a ceramic wastewater treatment method and a ceramic wastewater treatment device, which are characterized in that ceramic wastewater is collected in a wastewater settling pond firstly, so that large granular solids are settled in the wastewater settling pond; then, wastewater subjected to preliminary settling is pumped to an efficient precision treater to be filtered through a wastewater pump; clean water produced by filtering is conveyed to a clean water pond to reuse; after filtered objects accumulated by the efficient precision treater reach a certain amount, back-wash clean water is fed into the efficient precision treater, and sludge washed out is guided into a sludge pool. Compared with existing technologies, the ceramic wastewater treatment method and device disclosed by the invention have an advantage of efficiently, rapidly and reliably purifying ceramic wastewater.

An exhaust gas control apparatus for an internal combustion engine includes: a NOx purification catalyst arranged in an exhaust passage of the internal combustion engine; a degradation degree estimating unit estimating a degradation degree of the NOx purification catalyst; and an air-fuel ratio control unit adjusting an air-fuel ratio of exhaust gas flowing into the NOx purification catalyst, wherein, until the estimated degradation degree of the NOx purification catalyst reaches a predetermined degradation degree, the air-fuel ratio control unit adjusts the air-fuel ratio of the exhaust gas to a rich air-fuel ratio, and, when the estimated degradation degree of the NOx purification catalyst exceeds the predetermined degradation degree, the air-fuel ratio control unit changes the air-fuel ratio of the exhaust gas from the rich air-fuel ratio to a lean air-fuel ratio so that the NOx purification catalyst is regenerated.