44results about How to "Good laminar flow" patented technology

In an optical system measuring sample characteristics, by reducing the amount of ambient absorbing gas or gases and moisture present in at least a portion of the illumination and detection paths experienced by vacuum ultraviolet (VUV) radiation used in the measurement process, the attenuation of such wavelength components can be reduced. Such reduction can be accomplished by a process without requiring the evacuation of all gases and moisture from the measurement system. In one embodiment, the reduction can be accomplished by displacing at least some of the absorbing gas(es) and moisture present in at least a portion of the measuring paths so as to reduce the attenuation of VUV radiation. In this manner, the sample does not need to be placed in a vacuum, thereby enhancing system throughput.

The invention relates to a device (10) for filling and sealing pharmaceutical containers, wherein the containers are received in a receptacle (12), which is in particular tub-shaped and in which a carrier element (11) is inserted, said carrier element being removable from the receptacle (12). The containers are arranged in receivers of the carrier element (11) in multiple rows next to one another and behind one another. Said device further comprises a first handling unit (27) for removing the carrier element (11) from the receptacle (12), a filling and sealing device (35) for the containers, and a second handling unit (45) for reinserting the carrier element (11) into the receptacle (12) which is conveyed with the carrier element (11) on a conveying device (20). According to the invention, the containers are embodied as syringe barrels (1) or as containers which are to be provided with crimp caps (53), such as vials (2) or cylindrical ampoules (3), and the second handling device (45) is associated with a crimping device (54). When handling containers which are to be provided with crimp caps, the crimping device is controlled by the second handling device (45) so that the second handling device (45) first feeds the containers into the crimping device (54) then reinserts the containers which were sealed by means of the crimping device (54) into the carrier element (11).

An aspirator with an aspirator body and an exhaust port coupled to the body, and having a plurality of integral high pressure gas nozzles positioned along the aspirator body the body. The aspirator body includes a high pressure integral conduit in communication with a nozzle array having a plurality of high pressure gas nozzles. The nozzles are arcuate, extending away from the body toward an aspirator centerline, the nozzles extending from the aspirator body at a preselected angle toward the centerline in a direction from an atmospheric air aspiration port toward the exhaust port. A high pressure inlet port integral with the body is in communication with the conduit and a high pressure gas source. The gas may be input into the inlet port using a high pressure inlet fitting, which may be threaded onto the inlet port outside the aspirator body. The aspirator is fabricated by additive manufacturing techniques.

An aqueous printable electrical conductor (APEC) is defined as a dispersion comprising metal powder (with specific surface properties) dispersed into an aqueous acrylic, styrene / acrylic, urethane / acrylic, natural polymers vehicle (gelatine, soy protein, casein, starch or similar) or in a film forming reactive fatty acids mixture without a binder resin. The aqueous printable dispersion can be applied to substrates through different printing processes such as flexography, gravure, screen, dry offset or others. Exemplary substrates include: (1) coated paper, (2) uncoated paper, and (3) a variety of plastics with treated and untreated surfaces. When printed at a thickness of 1-8 μm, heating to cure is not required as the dispersion cures at ambient temperatures. When the dispersion is used for any of the above applications it will provide sufficient electrical conductivity to produce electrical circuits for intelligent and active packaging, sensors, radio frequency identification (RFID) tag antennae, and other electronic applications.

The invention relates to a device (1) for producing a three-dimensional object (2) by solidifying, layer by layer, structural material (13) at locations in the respective layer corresponding to the cross-section of the object (2) to be produced, comprising a flow device (31, 32, 34, 35) for generating a gas flow above an applied layer of the structural material (13) by means of a nozzle element (40) for introducing the gas into the device. The nozzle element (40) comprises a body (41) having a gas inlet side (44) and a gas outlet side (46), and a plurality of channels (42), which penetrate the body from the gas inlet side (44) to the gas outlet side (46), are provided with inlet openings (45) on the gas inlet side (44) and with gas outlet openings (47) on the gas outlet side (46), and which are separated by walls (43). The length of the channels (42) is selected such that a laminar flow on the gas outlet side (46) is formed therein.

Method of manufacturing of components used in the field of aviation aircraft and, specifically, an aircraft engine nacelle lipskin. Instead of spinning flat plates, this method uses spinning a cylinder, thus eliminating waste material. It also eliminates the need for rivet lines which results in better laminar flow. Further, there is a reduction of other costs in addition to reducing drag.

In a flow sensor (1) comprising a flow channel (14) embedded in a base body (1′), a flow sensor element (13) adjacent to the flow channel (14) and a cover plate (12) covering the flow channel (14) and arranged on the base body (1′), the flow channel (14) is formed by an elastic sealing lip which delimits said channel (14), running on and around an upper side of the base body (1′) lying opposite the cover plate (12) and is pressed against the cover plate (12) such that a seal is formed. The design of the flow channel (14) by means of the sealing lip (5) allows the flow channel (14) to be sealed off from possible gaps between the base body (1′) and the cover plate (12) and in relation to the cover plate (12), such that a flow channel with a level channel bed (14) is formed by the sealing lip (15) and the cover plate (12) which channel bed has smooth peripheral areas and a uniform cross-section, and which if possible avoids the depositing and collection of dirt particles and thus prevents undesirable turbulence in the flow channel (14) and guarantees a laminar current through the flow channel (14).

The cigarette with super low free radical content features its delayed released plant polyphenol microcapsule content of 0.02-0.6 wt% of shredded tobacco. The plant polyphenol microcapsule is first dissolved in water, alcohol, mixture of water and alcohol or water solution of propylene glycol and the solution is then sprayed to shredded tobacco. The delayed released plant polyphenol microcapsule may be catechin microcapsule, gallic acid microcapsule as degraded product of tannin or grape polyphenol microcapsule. The added plant polyphenol has stability raised by 9-12 times, extraneous antioxidant performance raised by 5-6 times and intracorporal antioxidant performance raised by about 10 times. Its effective component may be absorbed by oral cavity and respiratory system to eliminate free radical in body while meeting the need of smokers.

The metal organic compound vapor deposition apparatus for growing zinc oxide semiconductor film includes growing chamber, sampling chamber, movable gate connecting the growing chamber and the sampling chamber, and atom generator for activating and cracking nitrogen source gas with gas outlet pipe set inside the growing chamber. The growing structure is one double-layer wall water cooling structure and provided with motor driven horizontal sample rack, sample heater, oxygen source inlet pipe, zinc source inlet pipe and exhaust port. During operation, cleaned substrate is fed via the sampling chamber into the growing chamber, the sample growing plane is fixed onto the rack, different reaction gases are input to grow crystal film of different performance. In the same time, nitrogen atom obtained through activating and cracking nitrogen source gas is fed to the growing chamber to obtain high quality n-type and p-type ZnO semiconductor crystal film.

The invention discloses a structure of a high-power strip beam electron gun with a rectangular section and relates to a vacuum electronic device technology. A cathode is a rectangular cylinder structure; a focusing electrode is a square frame-shaped structure spliced by two focusing planes with a certain inclination angles in the transverse direction; an anode is a structure with a hollow passage with a certain taper; an anode head is fixedly arranged at the center of a bottom surface inside an anode supporting barrel; the periphery of the rectangular cylinder cathode is matched with the hollow square frame at the bottom of the focusing electrode; the cathode and the focusing electrode are positioned in the anode supporting barrel; two symmetrical planes of the focusing electrode are parallel to two symmetrical planes of the anode and the central axes of the focusing electrode nd the anode are coincident; and a certain distance is formed between the focusing electrode and the anode. The electron gun disclosed by the invention has a direct current power of about 15MW, specification of 50mm*4mm of an electron beam section and compression ratio of 5:1 in the narrow edge direction and has excellent fluidity of an beam inner layer at the position of a beam waist. The generation problem of a strip electron beam is solved. The high-power strip beam electron gun with the rectangular section can be used in a high-power strip beam device and can be matched with a focusing system to realize long-distance stable transmission.

A gas turbine engine component has a component body configured to be positioned within a flow path of a gas turbine engine, wherein the component body includes at least one internal cavity. At least one inlet opening is formed in an outer surface of the component body to direct flow into the at least one internal cavity. At least one outlet from the internal cavity, wherein the at least one outlet is located at a lower pressure area in the internal cavity than the at least one inlet opening such that flow is drawn into the internal cavity from the at least one inlet opening and expelled out the at least one outlet. A gas turbine engine and a method of enhancing laminar flow for a gas turbine engine component are also disclosed.

The invention discloses semiconductor processing equipment. The semiconductor processing equipment comprises a reaction chamber and a process pipe, wherein at least part of the process pipe is positioned in the reaction chamber, the process pipe is provided with an accommodating part, an air inlet part and an air outlet part, the air inlet part is provided with an air inlet, the air outlet part isprovided with an air outlet, the process pipe is provided with a plurality of air inlets and a plurality of air outlets, the air inlets and the air outlets are distributed at intervals in the axis direction of the process pipe, the air inlets are communicated with an accommodating part, and the air outlets are communicated with the accommodating part. The semiconductor processing equipment is advantaged in that a problem that in existing semiconductor processing equipment, the effect of improving the uniformity of gas in the reaction chamber is poor can be solved.

A micromechanical component has a structure such that a material flow is guided from at least one preferred direction for the purpose of uniformly enveloping the micromechanical component.

The invention discloses a clean sampling trolley convenient for taking and placing. The clean sampling trolley comprises a vertically-pushing-pulling opening and closing type trolley door, a cylindrical or rectangular storing space and a shell arranged outside the storing space; a circulating air duct is arranged between the side periphery of the storing space and the shell, a filtering assembly, a draught fan, an air inlet and an air return port are arranged over the storing space, an air outlet is formed in the side periphery of the storing space, the storing space is further provided with at least one containing platform arranged in the axial direction, and each containing platform is provided with a hollow bottom surface and connected with a lifting device. The sampling trolley is good in vertical laminar flow effect of air flow and can effectively avoid the problem that the purification effect of a sample placed on the bottom containing platform is poor due to the fact that the air flow in the vertical direction is not uniform, and the air volume is decreased.

The invention belongs to the technical field of 3D printing, and relates to a blowing device of a metal 3D printer. The blowing device comprises a shell, and an air inlet and an air outlet are formedin the shell; an airflow channel is formed in the shell; the airflow channel comprises N layers of flow channels which are sequentially superimposed from top to bottom, wherein N is greater than or equal to two; the air inlet communicates with the air outlet through the airflow channel; a baffle with the height of h is arranged between the lower edge of the air outlet and the lower edge of the shell; a bottom-layer flow channel outlet is formed in the baffle, and the flow channel at the bottommost layer in the airflow channel communicates with the bottom-layer flow channel outlet; the distancebetween the lower edge of the bottom-layer flow channel outlet and the lower edge of the shell is h1, wherein h1 is less than h. According to the blowing device of the metal 3D printer, vortexes at ashielding gas outlet can be effectively reduced, the laminarity of shielding gas on the surface of a powder bed can be obviously improved, and the quality of the forming surface in the printing process is ensured.

The invention discloses a disposable butyronitrile glove production wastewater treatment method. The method comprises the following steps: collecting incoming water through an adjusting tank; removing slag through a coagulation air flotation machine 1; cooling through a cooling tower; enabling the wastewater to pass through a hydrolysis acidification tank and a biological selection tank, and sequentially pass through a first-stage A reaction tank, a first-stage O reaction tank, a second-stage A reaction tank and a second-stage O reaction tank for treatment; separating the sludge from water through an MBR membrane tank; and sterilizing the sewage, carrying out deslagging and discharged, and pressing the sludge into sludge cakes to be transported outwards. The invention relates to a disposable butyronitrile glove production reuse water treatment process, which comprises: filtering incoming water through a multi-medium filter; pumping to a reverse osmosis device, and treating the generated concentrated water through a catalytic ozonation tower and a two-stage A / O tank; and feeding the sewage enters a Fenton reaction tank to be treated. According to the present invention, after the two-stage RO filtration concentration, 70% of the purified water is reused for production, and 30% of the concentrated water is further deeply treated to achieve the emission requirement and then is discharged.

The invention provides a flow equalizing fan box and an embryo culture workstation, wherein the flow equalizing fan box comprises a box body; a volute-free centrifugal fan; a support frame, which comprises at least two baffle plates, wherein each baffle plate comprises a horizontal part and an inclined upward bending part, and an included angle alpha formed between the horizontal part and the bending part is an obtuse angle; the upper end width W1 of the bending part is larger than the bottom end width W2; the bending part is provided with a hollow structure, and the inner part and the outer part are communicated through a through hole; the volute-free centrifugal fan is arranged in an area enclosed by the support frame; and parameters of the box body, volute-free centrifugal fan and support frame meet certain conditions. The box has the advantages of uniform wind speed, low noise, good laminar flow effect and the like.

The invention relates to a gravity type water purifying device, and relates to the technical field of water purifying treatment. Since the water purifying capacity of an existing water purifying device cannot be adjusted, purified water is more likely to be mixed with a large number of particles. According to the scheme, the gravity type water purifying device sequentially comprises a flocculationarea, a water purification settling area and a fine filtering area in the water flow direction. The water flow direction of the water purification settling area is from bottom to top, and the water purification settling area is internally fixedly provided with a plurality of water purification channels distributed in arrays. The water purification channels are obliquely arranged. The water purification settling area is internally provided with two parallel connecting frames. A plurality of adjusting pieces are fixedly connected between the two connecting frames. Each adjusting piece corresponds to one water purification channel, penetrates through the corresponding water purification channel and is attached to the inner wall of the water purification channel. A driving assembly is installed in the water purification settling area. The driving assembly can make the adjusting pieces attached to the inner walls of the water purification channels or away from the inner walls of the waterpurification channels, and therefore the hydraulic radius of the water purification channels is changed, and the water purification capacity is changed.

The invention discloses an air heat energy recovery device for printing equipment. The air heat energy recovery device for the printing equipment comprises a framework body, a draught fan, a drive motor, an exhaust duct, a heat exchanger, a compressor and an expander, wherein the draught fan is arranged inside the framework body and provided with the drive motor; the exhaust duct is arranged on the upper portion inside the framework body and used for leading out and discharging return air of the printing equipment; the heat exchanger is arranged on the exhaust duct and used for absorbing the heat of hot air inside the exhaust duct; and the compressor and the expander are arranged on the heat exchanger and a condensing heat exchanger and used for exchanging heat of the heat exchanger and heat of the condensing heat exchanger. According to the air heat energy recovery device for the printing equipment, the condensing heat exchanger can be used in cooperation with the heat exchanger, the temperature in the return air can be reutilized, the air heat energy is used, and therefore, the consumption can be reduced, and the energy utilization efficiency can be improved.

The invention discloses a sealing leakage characteristic and flow field visualization experiment table capable of adjusting a gap. The experiment table can adjust a seal gap conveniently and quickly, replace a sealing structure, and can be used for the visualization research of a flow field. An experiment segment is formed by the assembly of sealing teeth, a rotor surface, an observation plate, and a back baffle plate. An adjustment bolt and a height adjustment plate for adjusting the height of the gap are disposed below the sealing teeth. The experiment segment is made of organic glass, and can allow a laser light sheet to pass. The observation plate is provided with a window, and cooperates with a laser light source and a CCD camera of a PIV testing system to carry out the visualization measurement of the flow field. A smoke generator is connected between a metering segment and a rectification segment, and is used for generating tracking particles for the visualization of the flow field. The smoke generator is provided with a cooling system.

The invention discloses a flow uniformity sleeve and a flowmeter equipped with a flow uniformity sleeve, comprising a first flow uniformity piece and a second flow uniformity piece opposite to the first flow uniformity piece, the first flow uniformity piece includes multiple a plurality of first flow equalizers, a plurality of first flow equalizers are provided with a plurality of first flow equalizers, and a plurality of first flow equalizers are superimposed on each other in a one-to-one correspondence with the first flow uniformity holes, so The second flow equalizer includes a plurality of second flow equalizers, and a plurality of second flow even holes are opened on the plurality of second flow equalizers. One-to-one correspondences are superimposed on each other. The flow uniforming sleeve of the present invention sieves the originally unstable fluid through the first flow evening piece and the first flow evening piece, so that the fluid is converted from the turbulent flow in the original state into a multi-beam stable laminar flow, and the preparation The process is simple, so that the flow meter equipped with the uniform flow sleeve can obtain accurate flow data in the subsequent measurement.

The invention relates to a gravity type water purification device, which relates to the technical field of water purification treatment. Since the water purification capacity of the existing water purification device is not adjustable, it is more likely that the purified water is still mixed with a lot of particles Case. This scheme includes the flocculation area, the water purification sedimentation area and the fine filtration area in sequence along the water flow direction. The water flow direction of the water purification sedimentation area is from bottom to top. There are several arrays of water purification channels fixed in the water purification sedimentation area. The water channel is arranged obliquely; two parallel connecting frames are installed in the water purification sedimentation area, and several adjusting pieces are fixedly connected between the two connecting frames. Each adjusting piece corresponds to a water purification channel, and the adjusting piece passes through the corresponding The water purification channel is attached to the inner wall of the water purification channel; a drive assembly is installed in the water purification sedimentation area. The driving assembly can make the adjusting sheet stick to the inner wall of the water purification channel or be away from the inner wall, thereby changing the hydraulic radius of the water purification channel, thereby changing the water purification capacity.

The invention discloses a hose filling and tail sealing system which comprises an annular conveying device, and a variable-pitch feeding device, a benchmarking device, a purging device, a filling device, a tail folding device, an impressing device, a visual detection device, a discharging device and a waste removing device which are sequentially arranged in the conveying direction of the annular conveying device, and one side of the annular conveying device is a horizontal conveying side; one side of the annular conveying device is a horizontal conveying side, the other side of the annular conveying device is a vertical conveying side, the variable-pitch feeding device, the discharging device and the waste removing device are located on the horizontal conveying side of the annular conveying device, and the benchmarking device, the purging device, the filling device, the tail folding device, the impressing device and the visual detection device are located on the vertical conveying side of the annular conveying device. The invention further discloses a hose filling and tail sealing method. The method comprises the steps that feeding is conducted; performing benchmarking; blowing and sweeping; performing filling; folding the tail; carrying out impressing; if the visual inspection is qualified, discharging is carried out, and if the visual inspection is unqualified, waste is removed. The hose filling and sealing system and the hose filling and sealing method have the advantages that the layout is reasonable, the production efficiency and the production quality are improved, and the like.

The invention relates to the technical field of Raman laser, in particular to a flowing gas stimulated Raman scattering frequency conversion device, which is characterized in that one side of a gas circulation main pipeline is a gas flow driving section, the other side of the gas circulation main pipeline is a light transmission section, the gas flow driving section is provided with a gas flow driving device, one end of the light transmission section is coaxially connected with a first light guide arm, and the other end of the light transmission section is coaxially connected with a second light guide arm; a laser input cavity mirror is arranged at the end, away from the light passing section, of the first light guide arm, a first isolation optical window is arranged at the end, connected with the light passing section, of the first light guide arm, a second isolation optical window is arranged at the end, connected with the light passing section, of the second light guide arm, and a laser output cavity mirror is arranged at the end, away from the light passing section, of the second light guide arm. One end of the gas circulation main pipeline is provided with a first diversion balance pipe communicated with the first light guide arm, and the other end is provided with a second diversion balance pipe communicated with the second light guide arm. According to the invention, heat dissipation is ensured, conditions of light path deflection distortion and the like are reduced, and the device can be used for Raman frequency conversion of high-power or high-repetition-frequency laser.

The flow uniformizing sleeve comprises a first flow uniformizing piece and a second flow uniformizing piece arranged opposite to the first flow uniformizing piece, the first flow uniformizing piece comprises a plurality of first flow uniformizing pieces, a plurality of first flow uniformizing holes are formed in the first flow uniformizing pieces, and a plurality of second flow uniformizing holes are formed in the second flow uniformizing pieces. The first flow uniformizing piece comprises a plurality of first flow uniformizing pieces, the first flow uniformizing pieces are overlapped in the mode that the first flow uniformizing holes correspond to one another in a one-to-one mode, the second flow uniformizing piece comprises a plurality of second flow uniformizing pieces, a plurality of second flow uniformizing holes are formed in the second flow uniformizing pieces, and the second flow uniformizing pieces are overlapped in the mode that the second flow uniformizing holes correspond to one another in a one-to-one mode. According to the flow uniformizing sleeve, fluid in an original unstable state is screened through the first flow uniformizing piece and the second flow uniformizing piece, so that turbulent flow in the original unstable state of the fluid is converted into multiple beams of laminar flow in a stable state, and the preparation process is simple; therefore, the flow meter provided with the flow equalizing sleeve can obtain accurate flow data in subsequent measurement.

The invention discloses a portable magnetic coagulation sedimentation device. The portable magnetic coagulation sedimentation device comprises a machine body. The interior of the machine body is successively provided with a driving chain wheel and a driven chain wheel along a horizontal direction. The driving chain wheel and the driven chain wheel are rotatably connected in the machine body. A mudscraper chain is connected between the driving chain wheel and the driven chain wheel. The outer wall of the mud scraper chain is uniformly and fixedly provided with a plurality of scraping plates. The machine body is provided with a motor. A transmission chain is connected between the motor and the driving chain wheel. The interior of the machine body is fixedly provided with an inclined plate.The inclined plate and an effluent weir are successively installed above the mud scraper chain. The water outlet end of the inclined plate is communicated with the water inlet end of the effluent weir. The top end of the machine body is provided with a water distributing hole. The portable magnetic coagulation sedimentation device is capable of integrating a mud scraper and an efficient inclined plate sedimentation basin, has the characteristics of large wetted perimeter, small hydraulic radius, good laminar conditions, and no flocculant flow interference to particle sedimentation, and has thecharacteristics of strong overload capacity and large transmission power through chain transmission, and is convenient for maintaining and skid-mounting.