548results about How to "Stable airflow" patented technology

The invention discloses a down filling machine, which comprises a down storage box, weighing cabinets, down filling pipes and a programmable controller, wherein the down storage box is provided with at least two weighing cabinets; at least two weighing boxes are arranged in each weighing cabinet; the total number of the weighing boxes is equal to the total number of down outlets of the down storage box; each weighing cabinet is provided with at least one down filling pipe; the total number of the weighing boxes in each weighing cabinet is dual, and the number of the down filling pipes is a half of the total number of the weighing boxes. According to the down filling machine, the close full-automatic down filling can be carried out, the labor intensity is reduced, the production efficiency is improved, and the production cost is decreased. The down filling machine has the advantages of reasonable design, simple structure, low cost and good practicability. The down storage box of the down filling machine has stable down output, so that the down filling consistence and the down filling precision are ensured; a weighing process of the weighing boxes is independent, precise and effective; the down filling pipes cannot fill the down to airtight cutting pieces; working conditions of the multiple weighing boxes are alternatively changed and one down filling pipe is used for outputting, so that the down filling efficiency is further improved.

The invention provides a biologic filtration method and a device for purifying industrial organic waste gas, which has high efficiency, less investment, low running cost and extensive application range of equipment. The method comprises the following steps: (1) the industrial organic waste gas is sprayed and processed in a spraying tower with a tap water spraying system to remove solid particles; (2) the waste gas enters a biologic trickling filtration tower filled with a biologic filler filled with a composite material for carrying out biologic filtration; inorganic salt nutrition liquid and active sludge which are stored in an aeration tank are evenly sprayed into the biologic trickling filtration tower by a pipeline and a spraying device, and the industrial organic waste gas is adsorbed, absorbed and degraded biologically by a biologic film attached to the surface of the biologic filler and the active sludge from the aeration tank; and (3) the industrial waste gas after being purified is discharged from a waste gas discharge port at the top of the biologic trickling filtration tower, and the active sludge is recirculated into the aeration tank for recycle after being regenerated. The invention has higher processing effect to various industrial mixed organic waste gases and wide application range, and the processed industrial mixed organic waste gases can reach the national emission standard or the emission standard of a manufacturer.

The invention discloses a silent range hood comprising a machine enclosure and an exhaust fume collecting hood with an air inlet, wherein a spiral casing is arranged in the machine enclosure and is provided with a front air inlet and a back air inlet. The silent range hood is characterized in that a sound absorption flow guide hood is arranged on a front cover plate of the machine enclosure and is just opposite to the front air inlet of the spiral casing, a closed cavity is formed between the sound absorption flow guide hood and the front cover plate of the machine enclosure, a plurality of first micro-pores communicated with the closed cavity are formed in a back panel, opposite to the front air inlet, of the sound absorption flow guide hood, and the closed cavity is filled with first sound absorbing cotton. According to the invention, the sound absorption flow guide hood is just opposite to the front air inlet of the spiral casing and is provided with the micro-pores and the closed cavity is filled with the sound absorbing cotton, so that most of low-frequency, medium-frequency and high-frequency noise radiated outwards from the front air inlet can be absorbed; by reasonable selections of the aperture and the center distance of the micro-pores and the filling area of the sound absorbing cotton, the sound absorbing effect can be further strengthened.

The invention relates to a mobile type indoor disinfectant vapor disinfection system, which comprises a disinfectant vapor generation device, a wireless intelligent control system, a power-driven device, an environmental monitoring device, an air supply device, a mobile device and a disinfectant storage device. The disinfectant vapor generation device comprises a disinfectant vapor three-level refinement system, a filtering and catalyzing integrated system and a vapor generation control device; the air supply device supplies secondary power for scattering vapor in a space; and the wireless intelligent control system is communicated with the environmental monitoring device, the air supply device and the power-driven device so as to finish the operations of controlling the disinfectant vapor generation device, acquiring environmental parameters, and switching on / off the air supply device and the power-driven device in a disinfection target. The mobile type indoor disinfectant vapor disinfection system can intelligently, comprehensively and efficiently finish the disinfection operation of a closed space of large-sized equipment and is particularly suitable for the disinfection operation of a closed space with long and narrow passages, so that the mobile type indoor disinfectant vapor disinfection system has the advantages of strong maneuverability, high disinfection efficiency, no secondary pollution, and the like.

The invention discloses an odor biological treatment process and a device in environmental engineering, meanwhile, the invention discloses a process for removing a plurality of mixed obnoxious gases and a device, which is characterized in that a trickling bio-filter A is arranged, the gas to be treated is pressurized by a draught fan to be delivered to an air pretreatment device, then the gas enters into a gas distributor at the lower part of the trickling bio-filter A, thereby carrying out the reactions of filtration, adsorption, degrading and biochemical when passing through a biological carrier and removing H2S; a trickling bio-filter B is arranged, the gas comes from the top of the trickling bio-filter A and enters into the trickling bio-filter B from the bottom of the trickling bio-filter A, which can pass through the biological carrier to remove volatile organic compounding exhaust gases; the trickling bio-filter A and the trickling bio-filter B are respectively provided with a spraying liquid A and a spraying liquid B, and the spraying liquid A and the spraying liquid B enter into the biological carrier from top to down. The process and the device have the advantages that the obnoxious gases are removed with different grades; the device is flexible and convenient to manufacture, assembly and disassembly with low cost; the trickling bio-filter B is provided with a multi-grade biological carrier; the trickling bio-filter A and the trickling bio-filter B are respectively sprayed with the spraying liquid A, the spraying liquid B and nutrient fluid thereof, which is convenient to operate, easy to adjust and are capable of removing a plurality of obnoxious gases with good treatment effect and strong ability against load impacts.

The invention discloses an edible fungus dried air circulation treatment device which comprises a baking chamber, an air treatment unit, an air supply header pipe, an air mixing device, and an air supply pore plate and an air return pore plate which are arranged in the baking chamber in parallel, wherein the baking chamber is segmented into an air supply static pressure space, an air return static pressure space and a baking workshop; the air treatment unit consists of an air inlet, a solid adsorption and dehumidification device, a heat pump loop, a fan, an auxiliary electric heater and an air outlet; the heat pump loop consists of a condenser and three groups of compressors and an evaporator assembly which are arranged in parallel; and the compressors and the evaporator assembly comprise an expansion valve, an evaporator and compressors which are sequentially connected. By employing the parallel air supply mode and the general-branch-general-branch refrigerant distribution mode, the air distribution is improved, and the uniformity and stability of the air flow and temperature field in the baking chamber during operation are guaranteed, so that the consistency of the baking effect is guaranteed, and the energy consumption in the process of operating the baking chamber at a low load is reduced.

The invention discloses a sintered ore cooling furnace device. The device is composed of a pre-storage area, an annular air flue area, a chute area, a cooling area and an air chamber. High-temperature sintered ores are continuously and evenly distributed into a cooling furnace for cooling through a charging port above the pre-storage area by a material distribution device, high-temperature sintered ores are subjected to counter-flow heat exchange with low-temperature air blown from the bottom of the furnace in the cooling area of the cooling furnace, sintered ores are cooled to below 180 DEG C, low-temperature ores are discharged by a discharging device, the low-temperature air is heated to about 600 DEG C through counter-flow heat exchange and enters a waste heat recycling system through an air outlet, and hot air and hot sintered ores are effectively sealed inside the cooling furnace in the whole process. By the aid of the device, on the premise that the quality of sintered ores is guaranteed or improved and the return fine rate is reduced, the efficiency of recycling of waste heat of sintered ores is improved to the maximum extent.

The invention discloses a high-speed optical fiber drawing device and method which relate to the field of optical fiber communication. The method comprises steps of: preheating an optical fiber perform which is sleeved with a quartz lantern ring through a preheating mechanism; melting and drawing the optical fiber perform through a melting mechanism so as to form an optical fiber; annealing the optical fiber through an annealing mechanism; coating the optical fiber through a first coating device, curing the coating through a first coating curing furnace, removing the impurities out of the optical fiber through a first cooling pipe, coating the optical fiber through a second coating device, curing the coating through a second coating curing furnace, and removing the impurities out of the optical fiber through a second cooling pipe; and correcting the track of the optical fiber through a stabilizing guide wheel, drawing the optical fiber through a traction wheel, and collecting the wire of the optical fiber through a wire collecting barrel. The drawing speed of the optical fiber can reach 2500m / min, the diameter precision of the optical fiber can also be controlled, the diameter variation difference of all the parts of the optical fiber is smaller, the warping degree of the optical fiber is stable, and the coating quality and weight of the optical fiber can be ensured.

The present invention relates to a fluid separation device (10) for separating fluid, oil and oil spray from a gas. This fluid separation device (10) comprises a base carrier (21) in which fluid separator elements (20) in the form of flow-through tubes with worm-like segments (23) arranged therein, are integrated. The worm-like segments (23) at the same time form spiral flow paths (25) for the gas. They have a maximal length of half a pitch of the worm-like segment (23) so that the base carrier (21) together with the associated fluid separator elements (20) may be formed as one piece. Several base carriers may be arranged one after the other in a manner such that individual fluid separator elements of various base carriers form a common flow path for the gas.

The invention discloses an embedded type harmful gas detection system, which comprises a cylinder, a reaction gas chamber; a gas pump, a flow sensor, an illuminating apparatus, an image acquisition instrument, an embedded type ARM9 chip, a lower computer PIC16F877, a touch screen, a porphyrin array sensor, a temperature sensor, a humidity sensor and a controllable heater, wherein the cylinder is used for storing a gas to be detected; the gas pump and the flow sensor are connected in series between the cylinder and the reaction gas chamber; the illuminating apparatus is arranged at the bottom of the reaction gas chamber; the image acquisition instrument is arranged at the top part of the reaction gas chamber; the embedded type ARM9 chip is connected with the lower computer PIC16F877 through an RS232 serial port; the touch screen is connected to the embedded type ARM9 chip; and the porphyrin array sensor, the temperature sensor, the humidity sensor and the controllable heater are arranged in the reaction gas chamber. By using a principle that different color reactions appear when the porphyrin array sensor contacts the gas, and extracting, processing, performing match identification on spectral information, the system finally obtains information on the gas to be detected, displays the information and gives an early warning in time, so the system is suitable for detecting toxic, harmful and volatile organic gasses in the fields of industrial operations, chemical industry, foods, environmental protection, interior decoration, safety and the like.

The invention aims to provide a graphite bearing plate for processing an LED epitaxial wafer. The graphite bearing plate comprises a plurality of wafer grooves arranged above the bearing plate and used for holding epitaxial wafer substrates, wherein the inner side edge of each wafer groove is provided with a baffle structure, a baffle is in complementary relation with each wafer substrate, the wafer groove and the baffle structure are formed into an approximate roundness by taking the plat edges of the baffle and the wafer substrate as superposed edges, and the baffle structures can be used for reducing the gap position of the flat edges of the wafer substrates in the wafer grooves in an epitaxial growth process and ensuring the temperature and airflow stability of the flat edges of the wafer substrates, so that the edge yield of the epitaxial wafer substrates is increased.

A 5-DOF air-float motion simulator comprises a translation platform and an attitude platform. The translation platform comprises a ball surface air-float bearing, a rollover-preventing mechanical stop device, an elevating column, a first air pressure pipeline, a first controller, three plane air-float bearings, a translation platform installation panel, and a translation platform lithium battery. The attitude platform comprises an attitude platform installation panel, 2N air bottles, a second air pressure pipeline, an iGPS, four cold air nozzle, an inertial navigation system, a second controller, three fly wheels, a center of mass adjustment system, and an attitude platform lithium battery. The translation platform accomplishes translation movement in the X and Y directions, the attitude platform accomplishes rotation with respect to the pitch axis, roll axis and yaw axis, so that the simulator achieves simulation of spatial attitude rotation and track translation movement of a spacecraft.

A bag house air filtration system with minimal recirculation uses new inlet airflow patterns and cleaning processes. Inlet air enters the bag house. An input plenum changes the velocity profile. Dirty inlet air is split into two plenums, and then passed through guide vanes. A clean air plenum contains a series of individual compartments with a pre-set number of filter bags that are effectively cleaned during a single cleaning cycle. Each individual compartment has a door or louver mounted above the bag openings that is opened and closed during the cleaning cycle. An automatic control system continuously senses bag house pressure drop and activates the cycle when needed. The doors open and close in a pre-set pattern to drop the dust cakes from the bags and restore air flow to normal pressures. Closing a door mounted above the bags creates a reversal of pressure that removes the dust cake.

The invention discloses an air compressor hybrid control system, which comprises a main PLC (programmable logic controller) and plural local PLCs. The main PLC is connected with a main touch screen via an MPI (multi point interface) bus and with a monitoring computer via a PROFIBUS (process field bus); and each local PLC is connected with the main PLC via a PROFIBUS, with one local touch screen via an MPI bus and with a regulating valve, an emptying valve, a flow meter, a temperature transmitter, a pressure transmitter and a servo controller arranged on one air compressor via a PROFIBUS. The inventive system has characteristics of reasonable design, stable operation and long service life. The inventive method adopts integrated and independent control modes, realizes complementary advantages, improves compressor working efficiency, effectively realizes energy-saving and emission reduction, and lowers operation costs.

The invention is a extension growing device for metal organic chemical gas phase deposition kalium nitride base film, it includes reactor, whose character lies in: the reacting room is tube type double layer structure, and it is made up interior tube and exterior tube, the interior tube cavity is reacting cavity, the interior and exterior are inserted in the upper and subjacent fixing device, there is cooling water cavity between the interior and the exterior, the outer wall of exterior tube is winded with conduction heating coil, there sets a black lead base in the interior tube, the black lead is set on a ceramic tube, the ceramic tube connects with gearing part. The reactor has water cooling system, in order to maintain the low temperature within reactor, especially the part above crystal piece and gas mixing room; it can prevent the occurrence of pre-reaction.

The invention relates to an air silencer which comprises an outer barrel body, an air inlet pipe and an air outlet pipe, wherein the inner part of the outer barrel body is partitioned into a first cavity and a second cavity by a partition plate; a plurality of air pipes communicated with the first cavity and the second cavity are arranged on the partition plate; a distance between the first end face, positioned in the first cavity, of the air inlet pipe and the partition plate is smaller than a distance between the second end face, positioned in the first cavity, of each air pipe; a sound absorption structure for sound absorption is formed in the second cavity; a resisting silencer is arranged in the first cavity, and a resistive silencer is arranged in the second cavity, so that low, medium and high-frequency noise in high-speed air flow can be eliminated; after entering the first cavity, external high-speed air flow flows towards the partition plate and then returns so as to enter the second cavity from the air pipes; therefore, all the air flows go through such a 'backflow' process in the first cavity, and the air silencer disclosed by the invention is extremely good in silencing and noise reduction effects under an environment with high pressure difference and high flowing speed.

A circular channel for spinning polyurethane fibers is composed of cylindrical channel, spinneret plate module, annular air blower, annular air inlet flow-regulator, annular air-returning flow-regulator, hot airflow inlet and hot airflow outlet. Its advantages are high airflow stability, distribution uniformity and spinning quality.

The invention discloses an air outlet frame, a shell, a cross-flow cabinet air conditioner and a double-cross-flow cabinet air conditioner. The air outlet frame is applied to the cross-flow cabinet air conditioner. The air outlet frame is characterized in that the air outlet frame is provided with a top plate, a bottom plate and a plurality of longitudinal connecting plates, wherein the top plate, the bottom plate and the longitudinal connecting plates define connecting cavities which are used for inducing air corresponding to a cross-flow fan of the cross-flow cabinet air conditioner. The air outlet frame has the effects that outlet air is stable, and noise is small.

The invention discloses a gas distributor for a slurry bed reactor so as to solve the problem that bubbles cannot be broken well under the condition of large air input, gases cannot be uniformly distributed and a check ball will frequently bounce in an air-flow when a present bellcap distributor is used for gas distribution and feeding of a slurry bed reactor. The gas distributor provided by the invention is provided with a bellcap (3), an air inlet pipe (1) and a check ball (2). Gas distribution holes (32) are arranged slanting upwards on a cylindrical shell of the bellcap. The air inlet pipe is composed of an air inlet pipe upper-portion and an air inlet pipe lower-portion. The air inlet pipe upper-portion is provided with an air inlet pipe upper-portion middle-lower opening (5) and an air inlet pipe upper-portion top opening (6). An inner cavity of the air inlet pipe is composed of an inverted frutum conical air inlet pipe lower-portion upper core space, an air inlet pipe lower-portion bottleneck and a frutum conical air inlet pipe lower-portion lower core space which are arranged from top to bottom. The check ball is supported on the surface of the air inlet pipe lower-portion upper core space when placed at a sealing position. The gas distributor provided by the invention can be used in a slurry bed reactor for gas distribution and feeding.

The invention relates to a square spinning channel with 48 joints, which comprises a square tube shaped spinning channel body (1), an upper side air inletting cabinet (2), a spinning component with 48 joints (3) and an upper side air returning cabinet (4), wherein the 48-joint spinning component (3) is mounted on the top of the square tube shaped spinning channel body (1), the upper side air inletting cabinet (2) and the upper side air returning cabinet are respectively mounted on the left side and the right side of the top of the square tube shaped spinning channel body (1). The square spinning channel with 48 joints is characterized in that a lower air returning device (5) and a lower nitrogen gas air curtain device (6) are mounted on the lower portion of the square tube shaped spinning channel body (1), wherein the lower air returning device (5) and the lower nitrogen gas air curtain device (6) are mounted up and down in interval, the square spinning channel with 48 joints can greatly improve the output of the spinning under the precondition of slightly increasing the number of the spinning channel and winder device and the like.

A separating apparatus which enables particles to be separated from a flowing medium by a preliminary separator which avoids the undesirably high pressure losses due to the flow resistance of known preliminary separators. The separating apparatus has a housing with an inlet and an outlet, in which a flow of air at the inlet end is caused to rotate by an inlet guide device, and is redirected again at the outlet end by an outlet guide device into a linear flow. The pressure recovery is achieved by a defined curvature and arrangement of the guide elements. The guide element curvature has an inlet contour, a retarding contour and a stabilizing contour. Preliminary separators of this type are used primarily in the air intake tracts of internal combustion engines exposed to heavy contamination, such as engines in farm machinery or construction machinery.

The objective of the present invention is to enable a microfilament that is a nanofilament to be manufactured continuously and consistently from all thermoplastic polymers without requiring a specialized high precision.high performance apparatus and also to present the nanofilament manufactured as described. The present invention comprises a microfilament in a nanofilament region and the manufacturing means thereof wherein a original filament transferred using a filament transfer means is supplied to an orifice under pressure P1 and is heated and drawn using an infrared light beam directly under the orifice under pressure P2 (P1>P2).

The invention relates to an ignition and combustion testing device, and aims to provide a device for ignition and combustion of a primary boron product with high energy density laser. The device comprises an ignition module, an atmosphere control module, a combustion diagnostic module, and a data recording module, wherein the ignition module comprises a high energy density laser device and a transparent ignition combustion tube, a laser tube is fixed on a base via a laser tube support frame, the transparent ignition combustion tube is arranged on an iron stand, and a sample bracket is arranged in the center of the transparent ignition combustion tube. The device provided by the invention can rapidly heat a primary boron product sample to a temperature above the boiling point of boron oxide in several milliseconds, which is far better than the conventional electric heating ignition manner, and can realize rapid ignition and complete combustion of the primary boron product. The laser device has low electric power, and can be used after being supplied with 220V family electricity, resulting in good generality. The laser heating range is centralized, and the energy utilization efficiency is high.

The invention discloses a flat-flamed burner. The flat-flamed burner comprises such modules as a stove plate (1), a pre-mixing air chamber (2), a protective air chamber (3), an experimental chamber (4), an air exhaust cap (5), a pressure regulator (6), observation window glass (9), a glass sealing cover (10), and the like. The flat-flamed burner is a modularization flat-flamed burner which is compact in structure, convenient in operation, high in safety and reliability, convenient to maintain after the improvement, capable of reducing photometric errors, self-adjustable in pressure and more stable in the generated flat flame. Different modules are designed, and then assembled to a burner of different functions, so that the modularization design method can constantly expand the application range of the flat-flamed burner.

Plasma arc torches described herein include a torch tip with an improved nozzle that provides angular shield flow injection. In particular, the nozzle provides angular / conical impingement of a fluid (e.g., a shield gas) on an ionized plasma gas flowing through a plasma arc torch. Some of the torch tips described herein include a nozzle with a conical external shape combined with a shield with complementing internal geometry to form the angular fluid flow. As a result, a plasma arc torch including the improved nozzle have the benefits of a stabilized ionized plasma gas flow together with enhanced nozzle cooling and protection from reflecting slag during torch use.

The invention relates to a gas sampling device, belongs to the field of environmental monitoring, and particularly relates to a gaseous mercury sampling device for a stationary pollution source. The gaseous mercury sampling device for the stationary pollution source comprises a smoke pipe, a refrigerator, dryers, particulate matter filters, flow rate controllers, gas pumps and accumulative volume meters which are connected sequentially, wherein the tail part of the smoke pipe is provided with a temperature preservation box; a gas outlet of the refrigerator is connected with a gas discharge end of the smoke pipe by a heat tracing pipe. The gaseous mercury sampling device for the stationary pollution source has the following advantages: 1. the device is better in stability, heats up uniformly because of heat tracing of the smoke pipe in the whole process, and can prevent pipeline blocking; 2. the sampling quality is higher, a mode that a stainless steel coil pipe is cast by high-heat-capacity metal is adopted for the refrigerator, and moisture in flue gas can be removed well; 3. the sampling flow rate is more stable, and the special volume flow rate controllers can acquire wider sampling flow rate, so that air flow is more stable; 4. the sampling volume metering is more accurate, counting pulses are collected by a precise photoelectric encoder, and thus the metering precision of the sampling volume is improved substantially.