86 results about "Pneumatic trough" patented technology

Burner with balanced air distribution includes fuel gas seat with pipe of mixing wind being installed on base, and inner fire cover and outer fire cover setup above the fuel gas seat. Outer and inner annular air grooves are setup in seat cavity of the fuel gas seat. Fuel gas channel is setup between outer and inner annular air grooves. There are outer air mixing channels between two adjacent fuel channels, and isolated from fuel gas channels. Inner air mixing channels are setup between outer air mixing channel and inner fire cover. Inner air mixing channels make air possible to enter to central area of the inner fire cover from outer air mixing channels. Thus, the invention overcomes disadvantages of deficient burning caused by not even mixing ratio between fuel gas and air in inner fire cover of traditional burner. Interconnected structure designed for structure of inner and outer air mixing channels is more in favor of balanced matching so as to raise thermal efficiency.

The invention relates to an electric propelling engine gas distributor, relates to the problem that whether propellant gas distribution of an electric propelling engine is uniform or not and belongs to the field of electric propelling. Due to non-uniform distribution of gas inlet pipelines, traditional gas distributors cause non-uniform circumferential distribution of propellant gas in electric discharging channels, and consequently, electric discharging of thrusters is affected. In order to solve the problem, the gas distributor with circumferential and radial gas transmission grooves and non-uniform distributed axial gas transmission holes/grooves is designed. The gas distributor mainly comprises a distributor-upper bottom, a distributor-lower bottom, gas inlet pipes and fastening screws. By forming gas transmission grooves, circumferential and radial diffusion of the propellant gas are manually inhibited, and non-uniform axial gas transmission holes/grooves are formed according to the different propellant gas densities in the different positions, so that the propellant gas enters the electric discharging channels more uniformly and the uniform and stable neutral particle environment is provided for the thrusters.

The invention discloses a fermentation and air distribution device for the aerobic composting of organic solid waste, which is provided with an automation control system and comprises a main air distribution channel and two rows of branch air distribution channels, wherein the main air distribution channel is arranged in the middle of a fermentation tank and is parallel to the wall of the fermentation tank; the two rows of branch air distribution channels are uniformly distributed at both sides of the main air distribution channel and are communicated with the main air distribution channel; and the main air distribution channel and each branch air distribution channel are respectively provided with a cover board with a plurality of air vents. In the overall fermentation process, the fermentation and air distribution device for aerobic composting does not need to be manually operated, can carry out enforced ventilation on the leavening, reduces the overturning frequency, reduces the odor emission in the treating process and lowers the energy consumption and production cost.

The invention discloses an anti-blockage anti-hole-shrinkage sewage pipeline connecting device, and relates to the technical field of sewage. The connecting device comprises a connecting pipe, evenlydistributed first springs are fixedly connected to the inner wall of the connecting pipe, clamping blocks are fixedly connected to the inner sides of the first springs, and two symmetric air grooves are formed in the inner walls of the connecting pipe. According to the anti-blockage anti-hole-shrinkage sewage pipeline connecting device, through cooperative use of an anti-blockage sleeve and an anti-blockage groove, when a pipeline is in threaded connection with the connecting pipe, a piston rod is extruded to move towards the interior of an air groove by a pipeline, the piston rod is extrudedby gas in the air groove, an anti-blockage sleeve expands under the effect of air pressure, the anti-blockage sleeve and the anti-blockage groove are clamped together, meanwhile, a clamping block is clamped with a clamping groove, the pipeline can be effectively prevented from loosening, the pipeline and the connecting pipe are tightly connected, slopes are arranged on the two ends of an inner pipe, sewage can conveniently pass through, the anti-blockage effect is achieved, the blockage possibility can be effectively reduced, and sewage conveying can be facilitated.

The invention relates to an inflatable gas oven, comprising a gas storage slot, a gas switch, a oven core and a gas channel, wherein a gas storage cushion slot is arranged between the gas storage slot and the gas switch, with a switch at the front end of gas storage cushion slot, therefore, gas with high pressure in the gas storage slot can be charged to gas storage cushion slot to flow to the oven core and achieve complete combustion when hand presses the switch and turn the gas switch, to prevent from spreading flame or gas explosion caused by overheat of gas oven.

The invention discloses a three-phase front processor for inner-loop anaerobic reactor, which contains at least two layers of inversed V-type horizontal pneumatic troughs of cross distribution and a 'pií‚-type horizontal collector trough connecting to a lift leg on the top, one end of the pneumatic trough connecting vertically to the side plate of the collector trough, and the lower end between adjacent horizontal pneumatic troughs having passages for liquid and particles. The device is characterized in that the passage opening connecting below middle of the pneumatic trough and the side-plate of collector trough is trapezoidal, the lower side of trapezoidal passage opening is higher than that of the pneumatic trough, the other side of the pneumatic trough is equipped with a triangular block which has constant section to the pneumatic trough, and a gas chamber is formed above the trapezoidal passage opening of the pneumatic trough. The merit of the invention is characterized in that it is beneficial for the growing of particle sludge, to decrease substantially the leak of minute particle sludge and improve the liquid stream in biochemical reaction field.

The invention provides equipment and method for removing nitrogen out of domestic wastewater. An outer tank body is arranged on the equipment, wherein a first anaerobic tank, a second anaerobic tank, an aeration tank, a precipitation tank and a sterilization tank are sequentially arranged inside the outer tank body; an inflow pipe extending into the first anaerobic tank is arranged on a lateral wall surface of the outer tank body; contact filter materials are arranged inside the first anaerobic tank and the second anaerobic tank; a first duct extending into the second anaerobic tank is arranged inside the first anaerobic tank; a second duct extending into the aeration tank is arranged inside the second anaerobic tank; an aeration system and a reflux pump are arranged at the bottom of the aeration tank; a reflux pipe extending into the first anaerobic tank is arranged on the reflux pump; a biomass carrier is placed into the aeration tank; a communicated channel is arranged at the bottom of the wall surface between the aeration tank and the precipitation tank; a third duct extending to the sterilization tank is arranged inside the precipitation tank; a disinfectant is injected into the sterilization tank; and a release pipe is arranged on the wall surface of sterilization tank on the outer tank body.

The invention provides etching and roasting equipment. The etching and roasting equipment comprises a reaction cavity and a heating component, wherein the reaction cavity is used for containing a graphite plate or an epitaxial substrate slice needing to be cleaned, and the heating component is arranged on the outer side of the reaction cavity and can be operated to increase the temperature inside the reaction cavity; and the etching and roasting equipment also comprises the circulating air cooling system which comprises an air blower, a top pneumatic trough, a bottom pneumatic trough, an air cavity and a heat exchanger, wherein the air blower enables air currents to circulate, the top pneumatic trough is arranged above the reaction cavity, the bottom pneumatic trough is arranged below the reaction cavity, the air cavity is communicated between the top pneumatic trough and the bottom pneumatic trough and is arranged on the periphery of the reaction cavity, air currents in the air cavity are introduced for cooling the heating component, and the heat exchanger is connected to the downstream of the bottom pneumatic trough through a circulation air channel. The normal heating and use of the etching and roasting equipment provided by the invention can be ensured as related heating and heated parts inside an air flue of a reaction cavity body can be cooled.

The invention relates to a combined type plastic film leak hunting device, and belongs to the technical field of film leak hunting and detection. The device comprises a pair of substrates and a leak hunting plate, substrate grooves are formed on side surfaces of the substrates faced to the leak hunting plate, substrate sponge mat avoiding cavities, a plurality of substrate air drains and air holes are arranged on the center of the substrate grooves, substrate sealing strips are arranged on all around of the substrate sponge mat avoiding cavities, substrate sponge mats are arranged in the substrate sponge mat avoiding cavities, and substrate joints are arranged on one side wall of the substrates; the leak hunting plate forms leak hunting plate grooves on two matched surfaces of the pair of substrates symmetrically, leak hunting plate sponge mat avoiding cavities, a plurality of leak hunting plate air drains and leak hunting plate air holes are arranged on the center of the leak hunting plate grooves, leak hunting plate sealing strips are arranged on all around of the leak hunting plate sponge mat avoiding cavities, leak hunting plate sponge mats are arranged in the leak hunting plate sponge mat avoiding cavities, and leak hunting plate joints are arranged on one side wall of the leak hunting plate. According to the invention, the device can simultaneously detect a plurality of plastic films, so that the leak hunting efficiency is high; the sealing capacity is good, and the leak hunting precision is high; the device can be conveniently detached, so that the to-be-detected plastic film can be protected from damage.

The invention provides a rotary heating device. The rotary heating device comprises a sealed shell, a rotary material bed, a material inlet pipe and an annular air inlet section, wherein the lower part of the shell is provided with an annular air-distributing groove; the rotary material bed is rotatablely arranged in the shell and is provided with a solid product discharge port and an air inlet gap; the material inlet pipe is arranged above the rotary material bed and is used for conveying materials to the rotary material bed; and the first end of the annular air inlet section passes through the air-distributing groove to be connected with the air inlet gap, and the second end of the annular air inlet section is connected with the outside so as to introduce hot gas into the shell. According to technical scheme provided by the utility model, the rotary heating device enables the hot gas introduced from the bed bottom of a rotary heating device to steadily and uniformly pass through a material layer in a reactor and to implement uniform and stable heat transmission, so that a pyrolysis process becomes uniform and stable, the operation is stable and controllable, and a final product has favorable quality.

The invention discloses a bi-parting type membrane bearing cylinder for an improved stress and strain type triaxial apparatus. The bi-parting type membrane bearing cylinder is characterized in that two semi-circular cylinder bodies are subjected to abutting joint to form a cylinder body; a positioning spigot and a sealing rubber strip are arranged on an abutting joint part; corresponding hanging lugs and fixed connecting pieces are arranged on the surfaces of the semi-circular cylinder bodies positioned on one side of the abutting joint part; the other side of the abutting joint part is configured to hinged connection; longitudinal and horizontal air grooves crossed with each other are respectively formed in the inner surfaces of the two semi-circular cylinder bodies; the horizontal air grooves of the two semi-circular cylinder bodies subjected to abutting joint are connected with each other, and an air hole penetrating through a cylinder wall is formed in the air groove of one of thesemi-circular cylinder bodies; the air hole is communicated with an external air extraction pipe, and a piston is arranged in the pipe. According to the bi-parting type membrane bearing cylinder disclosed by the invention, a piston is controlled by utilizing a pull ring, air extraction can be realized so as to ensure that a latex membrane is adhered. The bi-parting type membrane bearing cylinder disclosed by the invention has the characteristics of simple and reasonable structure and convenience in using.

The invention relates to a reaction gas conveying device of an MOCVD system. The reaction gas conveying device is used for reaction gas conveying and uniform distribution control and capable of sequentially guiding a path of reaction gas required by an MOCVD process into a first distribution space arranged in the position, along the circumferential edge, of a spray head, a second distribution space arranged on the inner side of the first distribution space and a plurality of air grooves parallelly distributed in an area defined by the second distribution space. By means of the reaction gas conveying device of the MOCVD system, the path of reaction gas enters from a plurality of air inlet points in the circumferential edge of a cavity cover and is uniformly distributed in the circular-arc direction after being distributed for two times, and then, the reaction gas in the air grooves is conveyed into a reaction cavity through a plurality of air jet openings formed in a body of each air groove or at least one fine seam. The reaction gas conveying device of the MOCVD system is easy to machine, high in reliability and capable of achieving uniform distribution of the reaction gas on the surfaces of epitaxial wafers.

The invention discloses an acid-washing exhaust gas lead-out device for a titanium metal tube, and belongs to the technical field of environmental protection facilities. The acid-washing exhaust gas lead-out device comprises an acid-washing groove, a cover plate used for covering the open part of the acid-washing groove, a gas collection groove, and a negative pressure suction mechanism used for leading the acid-washing exhaust gas to a purification device to perform purification treatment, wherein a group of acid-washing exhaust gas lead-out holes used for leading out an acid-washing exhaust gas in the acid-washing groove cavity of the acid-washing groove are formed in the groove wall at one side of the length direction of the acid-washing groove and located in the upper part of the groove wall in a spacing state; the cover plate is pivotedly arranged on the acid-washing groove; a part corresponding to the acid-washing exhaust gas lead-out holes, of the gas collection groove is fixed with the outer wall at one side of the length direction of the acid-washing groove, and the groove cavity of the gas collection groove is communicated with the acid-washing exhaust gas lead-out holes; and the negative pressure suction mechanism is connected with the gas collection groove in a matching manner, and communicated with the groove cavity of the gas collection groove. The acid-washing exhaust gas lead-out device has the following advantages that the influence of the acid-washing exhaust gas on a working environment and the harm thereof on the health of workers are avoided; an ideal exhaust gas collection effect is obtained; and the cost of the purification treatment is reduced.