160results about How to "Reduced purge time" patented technology

Systems and methods for insitu post atomic layer deposition (ALD) destruction of active species are provided. ALD processes deposit multiple atomic layers on a substrate. Pre-cursor gases typically enter a reactor and react with the substrate resulting in a monolayer of atoms. After the remaining gas is purged from the reactor, a second pre-cursor gas enters the reactor and the process is repeated. The active species of some pre-cursor gases do not readily purge from the reactor, thus increasing purge time and decreasing throughput. A high-temperature surface placed in the reactor downstream from the substrate substantially destroys the active species insitu. Substantially destroying the active species allows the reactor to be readily purged, increasing throughput.

A fuel cell system includes a primary fuel line to the fuel cell assembly, a jet pump in the primary fuel line and adapted to be driven by the flow of primary fuel, the jet pump having a nozzle, an entrainment chamber downstream of the nozzle and a mixing tube downstream of the entrainment chamber, a fuel exhaust recycle line from the fuel cell assembly opening to the entrainment chamber for supply of fuel exhaust thereto, and a mass flow control device in the primary fuel line upstream of the jet pump for controlling the primary fuel flow rate to the jet pump. The nozzle of the jet pump has an adjustable cross-sectional area to provide a variable area flow of the primary fuel so that the ratio of fuel exhaust entrained by the primary fuel in the entrainment chamber can be varied.

A system and a method are described for monitoring pressure imbalances in the adsorbent beds of a portable gas concentrator. Using the programmability features found in modern portable concentrators, various mitigative procedures to adjust for pressure imbalances and to predict the need for service are disclosed.

The invention discloses an air purification device and method capable of continuously degrading indoor VOCs. The air purification device comprises a dehumidification unit, an inlet air inducing unit, a first purification and degradation chamber, a second purification and degradation chamber, an outlet VOCs monitor and control unit and an exhaust unit. According to the air purification device capable of continuously degrading the indoor VOCs, VOCs gas adsorption degradation and activated carbon desorption regeneration are integrated, and integrated shell mounting is easy; the air purification device has the beneficial effect of being convenient to move, an adsorbing material does not need to be replaced frequently, the consumption cost of an activated carbon adsorbing material is greatly reduced, and the service life of the activated carbon adsorbing material is prolonged; and a dehumidification pretreatment method is adopted, the efficiency that activated carbon purifies and adsorbs the VOCs later is greatly improved, the air purification effect is greatly improved, and the good market potential is achieved.

A thin-film deposition apparatus includes a reaction chamber, a substrate transfer chamber, a susceptor having a radially-extending step portion, a ring-shaped separation wall for separating the reaction chamber and the substrate transfer chamber at a processing position where the susceptor is positioned inside the ring-shaped separation wall, and a conductive sealing member which is interposed between the radially-extending step portion and the separation wall to seal the reaction chamber from the substrate transfer chamber when the susceptor is at a processing position.

The invention relates to a biological floating island, and discloses a terrestrial plants and microorganisms combined biological floating island. The biological floating island comprises a biological floating island unit (1), wherein the biological floating island unit (1) comprises a vegetation layer (2), a matrix layer (3), a buoyancy basal disc (4) and a heavy hammer (5), the matrix layer (3) is accommodated in the buoyancy basal disc (4), the vegetation layer (2) covers the surface of the matrix layer (3), root systems are inserted in the matrix layer (3), the buoyancy basal disc (4) bearing the matrix layer (3) and the vegetation layer (2) floats on the surface of water, the heavy hammer (5) is sunk in the water, the heavy hammer (5) is flexibly connected with the bottom of the buoyancy basal disc (4), and microorganism filler particles (6) are embedded in the surface of the heavy hammer (5). The biological floating island disclosed by the invention is simple in structure and low in cost, and treats polluted water by using the synergistic effect of microorganisms and terrestrial plants, and indexes such as water purification efficiency, purification time and set-up area of the biological floating island are all superior to those of traditional biological floating islands.

The invention relates to the field of sewage treatment and in particular relates to a sewage purification system. The sewage purification system comprises a first dosing device, a second dosing device, a third dosing device, a coagulation tank, a flocculation tank, a filter device and a liquid storage tank, wherein the first and second dosing devices are communicated with the coagulation tank via pipelines; the third dosing device is communicated with the flocculation tank via a pipeline; the coagulation tank is communicated with the flocculation tank via a pipeline; the filter device comprises a motor, a rotating shaft, adsorption discs, positioning discs, scrapers, sewage tanks, sub-sewage tanks and clear water tanks sleeved outside the sewage tanks; the rotating shaft is arranged on the sewage tanks; a plurality of adsorption discs are arranged on the rotating shaft; each adsorption disc is matched with a scraper; the sub-sewage tanks are fixedly arranged in the sewage tanks; the clear water tanks are communicated with the liquid storage tank via pipelines; the flocculation tank is communicated with the sewage tanks. The system has the beneficial effects that the system can effectively purify sewage and is short in cycle; the purified sewage reaches the discharge standard, can be reused according to the production requirements, and has a wide range of application.

The invention relates to a water-oxygen fractionating purification vacuum glove box which is characterized in that an air pump (21) is taken as a power source, air in a system is circularly purified by flowing through a water purifying chamber and an oxygen purifying chamber, the water purifying chamber is divided into a front stage and a rear stage, and the fractionating purification of water in the air is realized, thereby the aim for purifying water and oxygen with high efficiency is achieved. A separation net four group is formed by a stainless steel filter sieve (26), an external upper ring (27), an external lower ring (28), an internal upper ring (37) and an internal lower ring (38), and the purification chamber is divided into two water purifying chambers and one oxygen purifying chamber.

The invention discloses a nuclear power plant auxiliary steam and steam turbine shaft seal steam pipeline joint purging method, and belongs to the technical field of nuclear power plant pipeline steampurging. The nuclear power plant auxiliary steam and steam turbine shaft seal steam pipeline joint purging method comprises the following steps that firstly, an adjusting valve in a pipeline, a filter element of a filter net and a filter element of a check valve are moved out; secondly, only a pipeline valve on a to-be-purged path is opened; thirdly, an auxiliary boiler is started, a steam isolation valve is gradually opened so as to conduct purging into the pipeline till the black or the brown of the steam at the pipeline outlet position disappears, and the steam isolation valve is closed; fourthly, installation or replacement of a target plate is conducted at the pipeline outlet position, the steam isolation valve is gradually opened, purging is conducted into the pipeline for a periodof time, the steam isolation valve is closed, the target plate index is detected, and whether the requirement is met or not is judged; and fifthly, the fourth step is repeatedly conducted till it is detected that two continuous purging results meet the requirement. By means of the nuclear power plant auxiliary steam and steam turbine shaft seal steam pipeline joint purging method, the nuclear power plant auxiliary steam and steam turbine shaft seal steam supply pipeline purging quality can be effectively improved, the purging time is shortened, and the purging cost is reduced.

A filter flushing adapter is provided for use with a filter device where the filter device has an opening forming an inlet and a second opening forming an outlet and with a filter medium positioned between the inlet and the outlet. The filter flushing adapter includes a body having a first open end leading to an interior passage of the body. A second open end leads to the interior passage. The second open end may have a connection fitting configured to receive the filter device and the first open end may have a connection fitting to receive an outlet of a kitchen faucet. An overflow outlet is positioned in the adapter between the first open end and the second open end communicating between the interior passage of the body and an exterior of the body and being aligned with the outlet of the filter device.

The invention particularly discloses a moon roof type air purifier device for a passenger car and a working method of the moon roof type air purifier device. The device comprises a flow guide air flue base, a ventilation opening, a flow guide plate, air walls, fixing plates, filtering net inserting grooves, L-shaped filtering net fixing grooves, fixed supporting bases, a cover plate, a partition board, fixing pieces, plasma assemblies, ultraviolet lamps and fans. The device has the following advantages that the size of a purification bin is increased, and the moon roof type air purifier device is short in purifying time when being used for purifying a passenger car with the same carriage area; one-time assembly of the plasma assemblies, the fans, the ultraviolet lamps and filtering nets can be achieved, and production efficiency is improved by 300%; the purification bin is reasonable in design, the utilization rate of materials is improved, and cost and investment are reduced; by means of the fans which are independently arranged in different spaces, the situation that air power is reduced due to parallel connection of the fans during normal work of the device does not exist; according to test detection, processing efficiency of the device for formaldehyde, toluene, dimethylbenzene and TVOC reaches 95% per hour, the processing efficiency for PM2.5 reaches 98% per hour.

The invention discloses a water ecological restoration system; an upper frame and lower frame of the system are connected through connection rods arranged on two sides; floats are mounted on the upper frame, and flexible solar panels are arranged on the floats; the upper frame is provided with plastic planting areas, the bottom of each planting cell of the plastic planting areas is provided with a plurality of seepage holes; a light passage is formed between every two adjacent plastic planting areas along the length of the upper frame; a plurality of propellers are arranged at one end of the upper frame in its width direction on a support, and stirring devices are mounted on the supports in the middle of the upper frame; all the stirring devices, the propellers and the flexible solar panels are connected to a battery pack on a mounting platform on the upper frame; a floating matter remover is arranged on the upper frame; a plastic planting plate is arranged on the lower frame, and Hydrilla verticillata, Elodea nuttallii, Potamogeton pectinatus and/or Dendrobium lohohense are planted in planting holes of the plastic mounting plate; a plastic retaining plate is mounted in every two adjacent retaining grooves.

The invention discloses an industrial wastewater purifier, which comprises a precipitation tank body, an electrolysis tank body, a heating device, a membrane bioreaction tank body and a water storage tank body, wherein a sterilizing device is arranged in the water storage tank body; the membrane bioreaction tank body is connected with the water storage tank body through a water through pipeline; a water pump and a water through pipe valve are arranged on the water through pipeline; a water outlet pipeline is connected with the bottom part of the water storage tank body; a water pump, a flowmeter and a water through pipe valve are arranged on the water outlet pipeline. The industrial wastewater purifier is provided with the precipitation tank body, the electrolysis tank body, the membrane bioreaction tank body and the sterilizing device, so that a purification process is strictly controlled; a catalytic purification process is realized through a centrifugal machine, a coagulant aid and the heating device, so that the purification time is greatly shortened, the purification efficiency is improved, the production cost of enterprises is reduced, sediments and harmful gas produced during the purification process can be reasonably treated, secondary pollution is prevented, and the industrial wastewater purifier is convenient to use.

The invention provides a fuel cell system, belongs to the technical field of fuel cells, and solves the problems that a humidifier and an electric pile cannot be effectively purged and mechanical damage of a membrane cannot be caused in the prior art. The system comprises an electric pile, an air compressor, a water pump, a heater, a radiator, a humidifier, a three-way valve I and a controller, wherein the air inlet of the electric pile is connected with the air compressor through the humidifier, a cooling liquid inlet is connected with the output end of the three-way valve I, a cooling liquid outlet is connected with the inlet of the water pump, and the outlet of the water pump is connected with the first input end of the three-way valve I through the heater and connected with the second input end of first three-way valve I through the radiator. According to the invention, after a shutdown instruction is received, a controller controls a cooling liquid to be heated through small circulation until the water temperature of a cooling liquid inlet of an electric pile rises to a threshold value, and a heater is turned off; an air compressor is controlled to perform hot purging on the electric pile and a humidifier; and after purging is finished, the cooling liquid is controlled to carry out large circulation for heat dissipation until the water temperature of the cooling liquid inlet is reduced to a set value, and the fuel cell system is closed.

The invention discloses a pneumatic hydrodynamic linkage spray dust reduction device for blasting a working face. The device comprises a water pipe connected with a purified water curtain device, a water pipe is transversely fixedly connected to a bracket, a vertically arranged connecting rod is hingedly connected with the lower portion of the free end of the bracket by a rotating shaft, the connecting rod is provided with a hook, and an iron plate is arranged at the lower end of the connecting rod; a quick valve is installed on the water pipe below the bracket, a valve stem of the quick valveand a transversely arranged rotating rod are linked, the rotating rod passes through the hook and is positioned by the hook, and a heavy hammer is hanged on the free end of the rotating rod; the lower end of the water pipe is connected with an air inlet pipe and a water inlet pipe through a Y-shaped triplet, and regulating valves are respectively arranged at the ends of the air inlet pipe and thewater inlet pipe. The device can greatly improve the on-site working environment, ensure the health of personnel, and have simple device manufacturing, easy material obtaining and good economic benefits.

The invention relates to a photocatalyst reactor. The photocatalyst reactor comprises a support pillar, an annular partition board and a shell which are coaxially arranged in sequence from inside to outside, and the space between the support pillar and the shell are divided into an inner ring space and an outer ring space by the annular partition board; a first flue gas inlet is formed in one end of the shell, and a first flue gas outlet is formed in the other end of the shell; the inner ring space and the outer ring space are each internally provided with multiple reaction layers in the flue gas circulation direction, each reaction layer is composed of multiple photocatalyst reaction units which are arranged in an annular pattern, and each photocatalyst reaction unit is arranged to be perpendicular to the flue gas circulation direction. In addition, a photocatalyst reaction tower and a flue gas purification system are further provided. By means of each of the photocatalyst reactor, the photocatalyst reaction tower and the flue gas purification system, the desulfuration and denitration can be achieved simultaneously, the photocatalysis efficiency and reaction homogenization degree are high, and a good desulfuration and denitration effect is achieved.