175results about How to "Uniform air intake" patented technology

The invention relates to a gas distributor for uniform gas emission. The gas distributor is generally arranged on a gas inlet section on a chemical vapor deposition device and used for providing uniform inlet gas for a reaction chamber. The gas distributor comprises at least one gas inlet pipe and over two closed gas distribution cavities, which are intercommunicated; the gas inlet pipe and the gas distribution cavities are fixedly connected in turn along the running direction of gas flow; the adjacent two gas distribution cavities are mutually spaced by a connecting wall; and over one gas distribution hole is distributed on the connecting wall. The final outlet gas flow speeds are equal by adjusting the heights or the lengths of the gas distribution cavities and adjusting the arrangement position and aperture size of the gas distribution hole on each connecting wall. The gas distributor has the advantages of simple structure, easy processing, convenient assembly and maintenance and low cost, can provide uniform inlet gas for the reaction chamber, ensures the uniformity and consistency of the inlet gas of the chemical vapor deposition device, and is favorable for uniform growth of a film.

The invention discloses a hearth and combustor cooling type surface cold flame premixing gas boiler. The boiler comprises a hearth, a water cooling combustor is installed at the position of an inlet of the hearth, an outlet of the hearth is connected to a reversal chamber, U-shaped water cooling components are evenly arranged in the hearth in the circumferential direction, inlets of the U-shaped water cooling components are evenly connected to an annular pipeline in the circumferential direction, and water outlets of the U-shaped water-cooling components and a water outlet of the water coolingcombustor are connected to a boiler water tank. According to the hearth and combustor cooling type surface cold flame premixing gas boiler, by the adoption of the water cooling combustor, uniform gascombustion can be achieved, the flame root combustion temperature is reduced while a local high-temperature area is not generated, generation of thermal NOx at the flame root is reduced, and meanwhile, a hearth cooling system is adopted, a U-shaped pipeline cooling structure is arranged, the compact structure and manufacturing economy of the boiler are achieved while the uniform low-temperature atmosphere in the boiler is guaranteed, and generation of the NOx during gas fuel combustion is further remarkably reduced.

The invention discloses a jacking type tire inflation machine, which comprises a base, wherein the two sides of the base are respectively provided with a support seat, the top part of each support seat is provided with a connecting seat, a tire support disc is arranged on the base, a lifting driving mechanism is arranged on the connecting seats, the bottom end of the lifting driving mechanism is connected with an inflation ring, the inflation ring corresponds to the tire support disc, and comprises an inflation outer ring and an inflation inner ring, and the inflation inner ring is arranged in the inflation outer ring. The jacking type tire inflation machine has the advantages that by adopting the jacking type inflation design, the maintenance of the inflation ring and the inflation machine is convenient; the inflation ring squeezes out a wheel hub of the tire and the lip edge of the tire to directly complete the inflation, the inflation is quick, the efficiency is high, the air can enter the interior through the wheel hub of the tire and the lip edge of the tire, and the air intake is uniform; the inflation ring adopts the double ring design of the inflation outer ring and the inflation inner ring, so the tires with different sizes can be inflated, and the application range is wide.

An environment-friendly efficient flue gas spraying and dust removing device is disclosed. The device includes a gas feeding pipe, a treatment tank, a separating plate, a gas filtration plate, air holes, brush hairs, a stirring blade, an activated carbon filtration plate assembly, a water tank, a water spraying pipe, a spraying row and a gas discharging pipe. The bottom side wall of the treatmenttank is communicated with the gas feeding pipe. The gas filtration plate is disposed in the treatment tank. The bottom surface of the treatment tank is provided with the separating plate. A water filtration screen is disposed between a backflow pipe and the bottom side wall of the treatment tank. An output shaft of a stirring motor is connected to a rotating shaft. The rotating shaft is provided with the stirring blade. The activated carbon filtration plate assembly is disposed in the treatment tank. The water tank is provided with the water spraying pipe. An outlet end of the water spraying pipe is provided with the spraying row. The spraying pipe is provided with a booster pump. The top of the treatment tank is provided with the gas discharging pipe. The device facilitates subsequent flue gas treatment. Flue dust and water mist condense together and drop down under the function of gravity and dust particles in the flue gas are further removed. The working efficiency and effects are increased. Water flows back and is recycled, thus saving resources. The device is simple in structure, convenient to use and prone to popularization.

The invention discloses a centrifugal compressor with inlet guide blades and a turbocharger. The centrifugal compressor comprises a volute, an impeller and guide blades, wherein an air inlet channel, an impeller mounting space and an air outlet channel are defined in the volute, the impeller mounting space is respectively communicated with the air inlet channel and the air outlet channel, and the air inlet channel is provided with an air inlet and the air outlet channel is provided with an air outlet; the impeller can be rotationally arranged in the impeller mounting space by surrounding around a revolving shaft and is provided with a plurality of blades; and guide blades are arranged on a peripheral wall of the air inlet channel. According to the centrifugal compressor provided by the invention, the peripheral speed of fluid such as air in the air inlet channel is reduced by the fact that the guide blades are mounted, so that air inflows at the tips of the blades can be more uniform; and moreover, and the sudden change of the peripheral speed can be reduced, so that the increasing ranges of thermal charges at the tips of the blades can be reduced, the property of the centrifugal compressor can be further improved, especially, the property can be remarkably improved under the small flow working condition.

The invention discloses an oil layer gas injection method. The oil layer gas injection method comprises the following steps: injecting a foaming agent water solution into an oil layer to be mined through an injection well; injecting air into the oil layer to be mined through the injection well after the foaming agent water solution is injected, wherein the injection speed of the foaming agent water solution is 150-300 cubic meters per hour, the injection time of the foaming agent water solution is 2-5 hours, and the injection speed of the air is that 200-300 normal cubic meters of air is injected into the oil layer with the thickness of every one meter every day; stopping injection of the air when the volume ratio of the air injected inside the oil layer to be mined to the combusted crude oil is 200-500. Through the oil layer gas injection method provided by the invention, the producing extent of each oil layer is balanced during multi-layer burning.

The invention provides a cooling structure of a high-pressure moving blade of a turbine of a gas turbine, and belongs to the technical field of gas turbines. The cooling structure is characterized in that seven channels including a first channel, a second channel, a third channel, a fourth channel, a fifth channel and a sixth channel are sequentially formed in the blade from the front edge of the blade to the tail edge of the blade; the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the sixth channel are provided with turbulent flow ribs, the third channel, the second channel and the first channel are sequentially connected with one another to form a snakelike channel, U-shaped spaces are formed at joints of the adjacent channels, the fourth channel, the fifth channel and the sixth channel are sequentially connected with one another to form a snakelike channel, and U-shaped spaces are formed at joints of the adjacent channels; a first gas inlet, a second gas inlet and a third gas inlet are formed in the bottoms of the third channel, the fourth channel and the seventh channel; a plurality of split seams are formed in the tail edge of the blade, and gas can be exhausted via the split seams; a blade top groove is formed in a blade top, and cooling holes and process holes are formed in the blade top groove; and blade top pressure surface cooling holes are formed in a blade top pressure surface. The cooling structure has the advantages that the front edge of the blade, a suction surface of the blade, the blade top and the like can be sufficiently cooled, accordingly, uniform blade root temperature fields can be guaranteed, the temperature of a blade body can be reasonably distributed, and the cooling structure is low in cold gas flow.

The invention discloses a drainage device used for underwater laser welding. The drainage device includes an upper end cover, a distance adjusting shell, a drainage shell and a drainage sealing pad. The upper end cover is provided with anti-reflection glass, an anti-reflection glass frame, an anti-reflection glass arrangement groove, a sealing ring, a drainage air hole, an air buffer slot, and a metal sieving net. The distance adjusting shell is connected with inner threads of the upper end cover through outer threads. The drainage shell is connected with the distance adjusting shell through outer threads. The drainage sealing pad is connected with the bottom of the drainage shell through a clamping hoop. The drainage device is simple in structure arrangement, convenient to operate, economical and practical; a stable local drying space can be formed on the surface of an underwater workpiece to be welded; the problem that underwater laser welding is influenced by water environment is effectively solved; and underwater laser welding is achieved.

The invention provides a cleaning device. The cleaning device is used for cleaning a wind wheel and an air channel of an air conditioner, and comprises a liquid supply assembly and a cleaning assembly, wherein the cleaning assembly comprises a cleaning pipe; the cleaning pipe is a hollow pipe; a spray head is arranged at the top end of the cleaning pipe; the bottom of the cleaning pipe is communicated with the liquid supply assembly; a plurality of liquid spraying holes are formed in the cleaning pipe; the hole diameter of each liquid outlet hole of the spray head is more than that of each liquid spraying hole; and the spray head and the plurality of liquid spraying holes are arranged by facing towards blades of the wind wheel. Cleaning liquid is sprayed on the wind wheel through the spray head and the liquid spraying holes simultaneously, and a large amount of cleaning liquid is sprayed by the spray head at the top end to wash the wind wheel, so that one part of cleaning liquid can flow towards the bottom of the wind wheel and dust is taken away; and the cleaning liquid sprayed by the liquid spraying holes is used for impacting the wind wheel, so dust in the wind wheel and the air channel is effectively removed and the cleaning effect of the air conditioner is improved.

The invention discloses a reaction rectification reactor. The reaction rectification reactor comprises a reaction section, a rectification section and a reflux condensation part from bottom to top, wherein a liquid outlet, a gas inlet and a gas distribution plate are arranged on the reaction section from bottom to top; a downspout and the gas distribution plate are arranged in the reactor; the upper end of the downspout is fixed on the gas distribution plate; a liquid inlet is formed in the reactor side wall between the reaction section and the rectification section; holes are evenly formed in the gas distribution plate. Compared with the prior art, the reaction rectification reactor has the beneficial effects that (1) a gas feeding manner of a gas phase is even, the amplitude of fluctuation of a reaction liquid level is small, the liquid level is easily controlled, and the problems of difficult connection between a large-diameter gas inlet pipeline and a gas distributor and processing difficulty of the gas distributor are avoided; (2), one part of reaction heat can be removed by gas carrying a gasified solvent, the temperature is controlled to be stable, and the problems of overheating locally and removing the reaction heat difficultly are avoided; (3), the rectification section and a condenser are capable of better separating certain components which are difficulty separated.

A gas engine using LPG or natural gas as fuel supply has a secondary vaporizer in between the reducer and distributor. The secondary vaporizer is comprised by a sealed water pipe and a sealed gas pipe which are connected side by side. On the secondary vaporizer may install a heating system and temperature sensor. The engine of this kind of structure is characterized of balanced gas distribution in each cylinder and stable running.

The invention relates to a continuous sludge thermo-hydrolysis device and a use method thereof. The device comprises a tank body, a stirring device arranged in the tank body, a steam pipeline penetrating through the tank body from the top of the tank body and extending to the bottom of the tank body along the inner wall of the tank body, temperature detection devices arranged at the upper part and the lower part of the side wall of the tank body respectively and a pressure detection device arranged at the top of the tank body, wherein a feed port is formed in the bottom of the tank body or the lower part of the side wall of the tank body; a discharge outlet is formed in the upper part of the side wall of the tank body; a feed valve and a discharge valve are arranged at the feed port and the discharge outlet respectively; a steam valve is arranged at an inlet of the steam pipeline. According to the continuous sludge thermo-hydrolysis device, materials are fed into the tank body from the lower part of the tank body and discharged from the upper part of the tank body; the stirring device with multiple layers of paddles is arranged, the materials are continuously conveyed for thermo-hydrolysis treatment, the treatment process is simple, operation is convenient, the treatment efficiency is improved, and a new approach is provided for large-scale application of the sludge thermo-hydrolysis process.

According to the technical scheme, a polycarboxylic acid high-performance water reducing agent production and synthesis device is characterized by comprising a polyether primary pre-reaction kettle, a polyether primary reaction kettle, a polyether secondary pre-reaction kettle, a polyether secondary reaction kettle and a water reducing agent reaction kettle which are connected in sequence; the device further comprises a 4-hydroxybutyl vinyl ether storage tank and an ethylene oxide and epoxybutane storage tank; the water reducing agent reaction kettle is further provided with an unsaturated monocarboxylic acid monomer solution storage tank and an initiator and chain transfer agent solution storage tank, and the polyether primary pre-reaction kettle and the polyether secondary pre-reaction kettle are provided with continuous catalyst feeders; and a first feeding mechanism for dispersing and feeding materials and a second feeding mechanism for atomizing and feeding ethylene oxide, epoxybutane and 4-hydroxybutyl vinyl ether are arranged on a feeding hole of the polyether primary reaction kettle. The device has the beneficial effects that the efficiency of producing and synthesizing the polycarboxylate water reducing agent is high, the mixing is sufficient, and the quality of the produced polycarboxylate water reducing agent is good.

A leak-proof bottle cap comprises a lower cap fixed at a bottle opening of a bottle body and an inner plug arranged in the bottle opening. A through hole is formed in the inner plug. An extending portion of the lower portion of a bottle neck extends into the inner plug. A step portion is formed in the middle of the bottle neck, and a connecting portion is arranged on the upper portion of the bottle neck. An outer thread is formed on the outer wall of the connecting portion. A wine through is formed in the bottle neck. An upper inner cap is connected with the connecting portion through an inner thread and fixedly connected with an upper cap through a fastener. The bottle neck with the extending portion extending into the through hole of the inner plug is adopted and made of hard plastic so as to support the inner plug. According to the arrangement, after long-term storage, the inner plug and the bottle neck are free of deformation, thus excellent sealing effect between the bottle plug and the bottle body is guaranteed to avoid leakage of wine.

The invention discloses a micro flow valve control mechanism. The micro flow valve control mechanism comprises an electromagnetic coil, a base, a ring seat, a rotor plate and an elastic sheet. The elastic sheet is located above the base. The ring seat and the rotor plate are located between the base and the elastic sheet. The rotor plate is located on the inner side of the ring seat. The base is provided with a sealing ring matched with the rotor plate. The electromagnetic coil is located on the upper side of the elastic sheet. A valve intake control structure is optimized. The ring seat achieves the guide effect on ascending and descending of the rotor plate to some extent. It is ensured that the rotor plate cannot defect in the intake process so that uniform air intake on an outer ring of the lower side of the rotor plate can be realized, and the operation stability of a solenoid valve is ensured. The electromagnetic coil generates upward suction force to the rotor plate, and the elastic sheet generates downward elastic force to the rotor plate; the height of the rotor plate can be slightly adjusted through current change of the coil, and then the opening degree of the valve is changed. The sealing ring on the base can ensure the airtightness of the valve after power-off of the coil.