30results about How to "Increase flow speed" patented technology

This progressing cavity pump including a helical rotor (2) mounted to turn inside a helical stator (3), said stator (3) and said rotor (2) being disposed such that the cavities (4) formed between said rotor (2) and said stator (3) move from the inlet (5) towards the outlet (6), is characterized by the fact that hydraulic regulation (HR) means are provided for obtaining internal recirculation of the pumped fluid between at least two of said cavities (4) under conditions capable of performing at least one function selected from: achieving the desired pressure distribution along the pump, stabilizing the temperatures, controlling the leakage flow rates, and compensating for the volumes of compressed gas.

A reaction energy harvester capable of providing motion from fluid flow, including a foil / wing capable of being rotated to present the foil / wing so that the maximum lift is generated. The lift is created by the fluid flowing past the foil / wing. A channel or system may be provided to direct the fluid flow to the foil / wing. The rotating foil / wing configuration is integrated into a mechanical device which is designed to transfer the lift into a mechanical motion to drive a generator. The mechanical motion due to the created lift is reversed by using a stalling mechanism and counter balanced mechanism. This creates a bidirectional motion which can be captured and used to drive a generator. The device can be utilized in either air or hydraulic environments. A modification of the energy harvester can be configured to utilize the electricity generated to produce hydrogen for use in fuel cells or for combustion.

The steam methane reformer using a premixed metal fiber burner which has a short flame length as well as a high temperature to thereby provide a high efficiency and also reduce a size, and a hydrogen station having the same. The steam methane reformer using a high performing metal fiber burner comprises a reforming part (110a) in which a catalyst for steam-reforming hydrocarbon materials and producing hydrogen is disposed; a combustion part (120) which is provided with a premixed metal fiber burner (120a) for generating heat required for the steam reforming reaction of the reaction tubes (110a); a raw material supplying part (130) for supplying hydrocarbon materials to the reaction tube (110a); and a hydrogen discharging part (140) for discharging hydrogen produced through the steam reforming reaction by the catalyst of the reaction tube (110a).

A cooking oven, wherein an upper blowing port blowing hot air in vertical direction and a lateral blowing port for blowing hot air in horizontal direction are provided in a cooking chamber, the upper blowing port is provided in the ceiling wall of the cooking chamber, the lateral blowing port is provided in one of the right and left inside walls thereof, and a suction port is provided in the bottom inside wall thereof in the form of collected perforations, air in the cooking chamber sucked from the suction port is fed to an upper duct and a lateral duct, heated by an upper heater and a lateral heater, respectively, and blown from the upper blowing port and the lateral blowing port, and the distribution of the perforations of the upper blowing port is made such that the distribution of the perforations at a position where the air blows toward air current from the lateral blowing port to a cooked object is made coarser than that at the other positions so that the air current in horizontal direction cannot be obstructed.

The invention provides an air cooling refrigerator and a control method and control system thereof. A refrigerator body of the air cooling refrigerator is provided with a refrigerating chamber and a freezing chamber. The freezing chamber is internally provided with an evaporator and a freezing air outlet fan. The refrigerator body is provided with an air feeding flue and an air returning flue. The refrigerating chamber is internally provided with a refrigerating chamber air outlet and a refrigerating chamber air returning port which are communicated with the air feeding flue and the air returning flue respectively. The freezing chamber is internally provided with a freezing chamber air outlet and a freezing chamber air returning port which are communicated with the air feeding flue and the air returning flue respectively. The refrigerating chamber is internally provided with a refrigerating chamber air door capable of opening or closing the refrigerating chamber air outlet. A refrigerating chamber air returning fan is arranged at the refrigerating chamber air returning port. When the refrigerating chamber air returning fan is started, the flow speed of airflow in the air returning flue can be increased. According to the air cooling refrigerator, the refrigerating chamber air returning fan is arranged at the refrigerating chamber air returning port, the flow speed of airflow in the air returning flue is increased, and the phenomenon of icing of water steam in airflow in the freezing chamber air returning port and the phenomenon of condensation at a door groove of the refrigerating chamber are reduced.

The invention discloses a novel mouse pad. The novel mouse pad comprises a supporting frame and a T-shaped plate. The two ends of the same rubber pad are movably connected with the T-shaped plate in an inserted mode, and the two ends of the rubber pad extend into mounting cavities formed in the supporting frame. A resistance wire works to generate heat, accordingly the rubber pad is heated, and then the part where a hand is in contact with the mouse pad is heated, the flowing speed of blood is increased, the tingling feeling is relieved, when the temperature is increased till the hand feels comfortable, an air bag is lifted up to the position where the hand is placed comfortably at the moment, a first electrode plate and a second electrode plate are separated, a series circuit is disconnected, so that the novel mouse pad can not only achieve the effect of relieving tingling and weak feeling of the hand, but also achieve the effect of saving energy and reducing consumption.

A heat dissipation fan includes a fan module and a flow guide device. The fan module further includes a motor stator set and a fan rotor. The motor stator set provides an axial core and an annular join part. The fan rotor is rotationally joined to the axial core. The flow guide device provides a plurality of flow guide blades. An annular section is provided on the flow guide blades and the flow guide blades is integrally made with the annular join part or the flow guide blades is integrally made with a frame and the frame being attached to the motor stator set. The annular section can reduce an eddy flow area, which is formed due to an electronic component impeding the air flow and creating counter air flow under the flow guide blades, so as to increase flow speed and flow rate of the air flow blown by the fan rotor and approaching an electronic component.

The invention discloses a solid floating object collection device. The solid floating object collection device comprises a main body, a water inlet barrel body, a collection barrel body, a water outlet barrel body, fixed plates, multiple water inlet grooves, a water inlet, sliding rods, sliding blocks, fixing bolts, through holes, flow guide plates, blocking grooves, fixed rods, fixture blocks, anti-slip strips, springs, a filter screen, blocking pieces, a supporting rod, a motor, fan blades, a water outlet and a connecting line. The water inlet barrel body is provided with the water inlet grooves, so that water can flow into the water inlet in multiple directions, the sliding rods are connected with the removable flow guide plates, the symmetrically-distributed flow guide plates can formflow guide channels, meanwhile floating objects can be concentrated, the flow guide plates also provide buoyancy for the solid floating object collection device, and the filter screen is arranged in the collection barrel body and can filter out the floating objects; and the motor is arranged in the water outlet barrel body, the motor drives the fan blades to extract the water, the water in the main body forms a water circulation, negative pressure is formed at the water inlet, and the floating objects are brought into the main body to be filtered.

The invention relates to environmental protection equipment and a denitration and dust-removing device, in particular to a gas-solid separator, as well as a denitration and dust-removing device. The gas-solid separator comprises a smoke gas distribution chamber. The smoke gas distribution chamber is provided with a smoke gas inlet for introducing a to-be-separated gas in a first direction; a plurality of gas cavities which are communicated mutually are distributed in the smoke gas distribution chamber in the first direction; and the volume of the plurality of the gas cavities is gradually reduced in the first direction. The smoke gas distribution chamber is connected with a plurality of cyclone separation assemblies which are in one-to-one correspondence with the plurality of gas cavities; each separation assembly comprises a cyclone cylinder and a gas discharge pipe which are matched mutually; the cyclone cylinder is provided with a gas inlet and flow guide end which is used for input gas and positioned in the gas cavities; and the gas discharge pipe partially stretches into the cyclone cylinder and penetrates through the smoke gas separation chamber. The denitration and dust-removing device comprises a shell and the gas-solid separator. The gas-solid separator, as well as the denitration and dust-removing device, protects a catalyst and prolongs the service life of the catalyst to finally realize the technical effects of improving the denitration effect and reducing the cost.

The invention discloses an ozone disinfection device and a using disinfection method. The ozone disinfection device includes a base, the center of the top surface of the base is fixedly connected withan ozone disinfection box, the right side of the bottom of an inner cavity of the ozone disinfection box is fixedly connected with an ozone generator, and the center of the bottom of the inner cavityof the ozone disinfection box is fixedly connected with a placement plate. According to the ozone disinfection device and the using disinfection method, through cooperative using of an arranged connection flange disc, an elastic sealing ring, a positioning bolt, an elastic expansion hose, a positioning clamping hook, a storage groove, an installation bolt, a non-woven cloth filter screen plate, an activated carbon filter screen plate, an installation plate, an elastic circular ring and a sealing groove, odors and suspended particles produced during working of the ozone disinfection device canbe filtered, in this way the using effect of the ozone disinfection device is better, and the problem that using is not environmentally friendly caused by appearing of a disinfection device due to the fact that the odors and suspended particles exist around an ozone device due to the fact that the odors and suspended particles in gas cannot be filtered out when the ozone disinfection device is used is solved.

Specified is a method for introducing chemicals and / or additives into a process flow of a production process, in particular of a process for producing a fibrous or nonwoven web, by means of a nozzle arrangement, in which method use is made of a nozzle arrangement having at least one mixing zone and having a throttle device arranged in the region of the nozzle outlet opening, the flow characteristic of which nozzle arrangement is variable and / or which nozzle arrangement can, for variability of the flow characteristic in the region of the nozzle outlet opening, be exchanged for a respective different throttle device with a different flow characteristic, in each case two media are mixed with one another in a respective mixing zone, and to set different flow speeds of the mixture flow which emerges from the nozzle outlet opening and which is to be introduced into the process flow, the flow characteristic of the throttle device is in each case correspondingly varied or a respective throttle device is exchanged for a throttle device with a different flow characteristic. Also specified is a nozzle arrangement for carrying out a method of said type.

The invention discloses a screw type concrete stirrer. The screw type concrete mixer comprises a rack, a stirring bucket arranged on the rack, a bottom disc fixed to the bottom of the stirring bucket, two or more stirring mechanisms arranged on the bottom disc and a motor driving the stirring mechanisms to rotate through a transmission device. Each stirring mechanism comprises a stirring arm and a screw blade detachably connected to the stirring arm, the rotation directions of the screw blades on the adjacent stirring mechanisms are opposite, and a discharging opening is formed in the bottom of the stirring bucket. The rotation directions of the adjacent stirring mechanisms are opposite, the flowing speed of materials in the stirring bucket is improved, and therefore stirring efficiency is improved. In a further embodiment, the screw surface type screw blades are adopted, mixing can be accelerated, and stirring efficiency is higher. Meanwhile, the screw blades can be replaced in time, and maintenance time is saved.

A lubrication system for an engine is provided which includes an oil tank, a first passage communicating a bottom part of the crankcase chamber with an upper part of the oil tank, a first check valve provided in the first passage to permit a flow from the crankcase chamber to the oil tank but not in a reverse direction, a second passage communicating an upper part of the oil tank with an upper part of the crankcase chamber, a second check valve provided in the second passage to permit a flow from the oil tank to the crankcase chamber but not in a reserve direction and a third passage communicating a lower part of the oil tank with the second passage.

One object is to generate, without the need for a motive power source and a high level of machining accuracy, micro-bubbles containing a large amount of fine air bubbles. Another object is to provide a micro-bubble generator that switches between micro-bubble water, which contains micro-bubbles, and foamed water containing a large amount of air and having a tender texture. The micro-bubble generator includes: a water passage that includes a smaller diameter portion and a larger diameter portion disposed on the downstream side of the smaller diameter portion; an air inlet disposed in the larger diameter portion and an elastic body disposed in the air inlet and configured to isolate the water passage from external air. The elastic body is compressable by negative pressure generated in the water passage, causing the external air to be sucked into the water passage through the air inlet and over the compressed elastic body.

Provided is a combination traveling water screening apparatus capable of improving collection and filtering efficiency of floating matters and reducing maintenance costs. The apparatus includes a frame (100), a motor (200) installed on the frame and providing a drive force, drive and driven sprockets (310) installed at both sides of the frame (100) and driven by the drive force transmitted from the motor (200), a carrying chain connecting the drive and driven sprockets (310) and circulated by the drive force, a plurality of screen baskets (500) circulated by the carrying chain (400) to filter and convey floating matters, a spray wash (700) for removing the floating matters in the screen baskets (500) using an injection pressure of fluid, and a through for collecting the floating matters dropped from the screen baskets, wherein each screen basket includes an upper plate (510), a lower plate (520) spaced apart a predetermined distance from the upper plate and bent upward at its front end, side plates (530) coupled to the upper and lower plates to cover both sides thereof, respectively, a plurality of vertical bars installed between rear sides of the upper and lower plates, and meshes installed behind the vertical bars.

The invention discloses an experimental device for simulating a release and absorption process of a suppository or a transdermal patch in the body. A liquid inlet and a liquid outlet are formed at twoopposite side walls of a release pool, respectively, wherein the liquid inlet communicates with an outlet of a flow collecting valve via a liquid inlet main pipe, and the liquid outlet communicates with a flow dividing valve via a liquid outlet main pipe. Two liquid outlet branch pipes are led out from the flow dividing valve, wherein one liquid outlet branch pipe communicates with a sample collector and a waste liquid collecting bottle via a three-way valve, and the other liquid outlet branch pipe communicates with one inlet of the flow collecting valve. The other inlet of the flow collecting valve communicates with a release medium source via a medium input pipe. A liquid inlet pump is located on the liquid inlet main pipe, and a liquid outlet pump is located on the liquid outlet main pipe. The release pool is internally provided with a biomimetic penetration plate, the bottom of which contacts a release medium in the release pool. A suppository or a transdermal patch is placed on the biomimetic penetration plate, and the flow of the liquid inlet is equal to the flow of the liquid outlet. The device is simple in structure and can truly simulate and reflect the release and absorption process of a suppository or a transdermal patch in the living body.

The application of aqueous solution of magnesium bicarbonate and / or calcium bicarbonate in the process of extraction separation and purification of metals is disclosed, wherein the aqueous solution of magnesium bicarbonate and / or calcium bicarbonate is used as an acidity balancing agent, in order to adjust the balancing pH value of the extraction separation process which uses an acidic organic extractant, improve the extraction capacity of organic phase, and increase the concentration of metal ions in the loaded organic phase.

The invention discloses a spiral flat pipe type buried pipe and belongs to the technical field of ground source heat pumps. The spiral flat pipe type buried pipe comprises a buried pipe body. The two ends of the buried pipe body in the length direction are straight pipe sections, the middle of the buried pipe body is a bent pipe section which is of a spiral rotary shape, and the section of the bent pipe section is oval. Protruding heat exchange ribs are arranged in the buried pipe body and attached to the inner wall of the buried pipe body. According to the spiral flat pipe type buried pipe, the heat exchange ribs capable of improving the fluid turbulence effect are arranged in the pipe and meanwhile the contact area between the pipe and water flow is increased, so that the heat transfer area is increased and the heat transfer effect is further improved.

In a nozzle deposit removing device and a method of nozzle deposit removal, compressed air is supplied to an air supply hole of a negative pressure generating unit from an air supply source, and compressed air is released to outside via an other end of a release hole from the air supply hole, thereby generating a flow of negative pressure directed from a tapered section of a nozzle insertion member toward the release hole via a through-hole. Next, a tip section of the nozzle is inserted into the tapered section of the nozzle insertion member, thereby forming a gap between the tapered section communicating with the through-hole and the tip section of the nozzle.

The invention discloses an oil storage tank which comprises a tank body. An oil inlet is formed in the top of the tank body, an oil outlet is formed in the bottom of the tank body, an air pump is arranged inside the tank body and brakes through a motor on the top of the tank body, and a set of observation openings longitudinally arranged are formed in the tank body. The oil storage tank is scientific in design and simple in structure, the pressure difference between the inside pressure and the outside pressure of the tank body is controlled through the air pump, when lubrication oil needs to be guided in, gas inside the tank body is pumped out to increase the flowing speed, and when lubrication oil needs to be guided out, gas is introduced into the tank body.

Equipment for self-care of patients with chronic pain, through inducing, intensifying and maintaining their own frissons and where multisensory and multimodal stimuli are used to achieve it; musical, visual, aromatic and vibrotactile and cold are applied on the cutaneous surface of the spine. In addition, the method for using them through perceptual learning is presented. The equipment consists of a computer and a computer system with a music and video player, lighting, presentation of aromas and a closed hydraulic circuit with a hydraulic actuator.

The invention discloses a membrane module device for sewage treatment. The membrane module device comprises a connection terminal, wherein a water inlet is fixedly formed in the upper end of the connecting terminal, the lower end of the connecting terminal is rotationally connected with a guide pipe through a threaded groove, ball bearings are fixedly arranged at the upper end and the lower end ofthe guide pipe, a rolling barrel is movably installed on one side of the guide pipe through the ball bearings, and comprises a first half rolling barrel and a second half rolling barrel, plural setsof clamping grooves are formed in one side surface, close to the second half rolling barrel, of the first half rolling barrel, and plural sets of buckles are fixedly arranged on one side surface, close to the first half rolling barrel, of the second half rolling barrel. According to the invention, the membrane module device is practical, simple in structure and convenient to use; and a filtering screen, a first filtering membrane and a second filtering membrane are arranged into a semi-cylinder structure, and the semi-cylinder structure is installed in the detachable rolling barrel, so that the filtering device can be conveniently cleaned after operation, the filtering surface of the device is greatly improved, the overall design of the device is reasonable, and the market requirement is met.

A heat dissipation structure includes a housing. The housing has a bottom surface, a liquid inlet channel, a liquid outlet channel and a protruding portion. The liquid inlet channel and the liquid outlet channel are located at two opposite ends of the housing and above the bottom surface. The liquid inlet channel and the liquid outlet channel extend along a first direction. The protruding portion is located between the liquid inlet channel and the liquid outlet channel and above the bottom surface. The protruding portion protrudes towards a direction away from the bottom surface. The protruding portion has a protruding surface facing away from the bottom surface. A distance between the protruding surface and the bottom surface is increased first and then decreased along the first direction.

The invention relates to the technical field of chemical engineering, and discloses a separation device for preparing o-xylene by separating mixed xylene, wherein the separation device comprises a feeding tank; the top end of the feeding tank is fixedly communicated with a separation tank, and the bottom end of an inner cavity of the separation tank is fixedly provided with a fixed block; and a movable rod located in the separation tank is movably mounted at the top end of the fixed block. According to the separation device for preparing o-xylene separated from mixed xylene, a flow deflector enters a temporary storage tank below to complete collection, meanwhile, o-xylene can push impellers to rotate when rising, the movable rod is driven to rotate through rotation of the multi-stage impellers, and an arc-shaped rod at the top end of a main shaft is driven to rotate; due to the fact that the top end of the arc-shaped rod make contact with the inner side face of a top cover, the inner side face of the top cover is cleaned, remaining o-xylene is scraped off, the remaining o-xylene enters the temporary storage tank through the flow deflector and is finally discharged through a discharging pipe, and thus the advantage that o-xylene is fully collected is achieved.

The embodiment of the invention discloses an auxiliary circulatory chip returning device of a production vertical well when the coalbed methane well generates radial hydraulically injection. The device comprises a sleeve tube, an operating oil tube and a tube column whipstock, wherein the upper end of the sleeve tube is provided with a water outlet which is communicated with a water exhaust device; the upper end of the operating oil tube is provided with a water inlet which is communicated with a water injecting device; and the lower guiding cambered surface part of the tube column whipstock is provided with a through hole. By arranging the through hole on the lower guiding cambered surface part of the tube column whipstock, the operating oil tube provided with the water inlet can penetrate through the tube column whipstock through the water flow injected by the water injecting device, and then enter the pocket of the production vertical well, and then the mixture of coal dust and water in the pocket can be effectively impacted, thereby avoiding the coal dust deposition.

The invention provides a method for producing and manufacturing polycrystalline silicon after recycling and reusing tail gas of a polycrystalline silicon reducing furnace by using an improved Siemens process, relates to a method for producing polycrystalline silicon by an improved Siemens process, and solves the problems that existing production conditions of polycrystalline by an improved Siemens process are limited by thermodynamics, energy consumption is high, conversion efficiency is low, and production cost is high. The method comprises the following steps: serially connecting various polycrystalline silicon reducing furnace devices, connecting an outlet of each polycrystalline silicon reducing furnace device with an inlet of the next polycrystalline silicon reducing furnace device by a pipeline and connecting the polycrystalline silicon reducing furnace devices successively, feeding in raw gas, and carrying out reduction reaction on surfaces of silicon cores to form polycrystalline bars; or serially connecting the various polycrystalline silicon reducing furnace devices together, connecting the outlet of each polycrystalline silicon reducing furnace device to the inlet of the next polycrystalline silicon reducing furnace device by the pipeline, connecting the polycrystalline silicon reducing furnace devices successively, respectively connecting the inlets of the polycrystalline silicon reducing furnace devices by material supplementing pipelines to obtain series equipment, feeding the raw gas, and carrying out reduction reaction on the surfaces of the silicon cores to form the polycrystalline bars.

The invention provides a chemical spraying device for sewage treatment. The device comprises a sewage pipe provided with a jet device, chemical spraying pipes provided with superchargers and aerationpipes, wherein the jet device is mounted at the front end of the sewage pipe, the chemical spraying pipes are connected to side walls of two sides of the sewage pipe, the aeration pipes are connectedto the top side wall of the sewage pipe, the connection positions of the chemical spraying pipes and the sewage pipe are located at the front end of the connection positions of the aeration pipes andthe sewage pipe, and the included angle beta between the chemical spraying directions of the chemical spraying pipes and the flowing direction of sewage in the sewage pipe is an acute angle. Sewage and an injection agent are mixed through convergence of the high-speed flowing sewage and a high-speed sprayed injection agent, the high-speed flowing sewage produces negative pressure to increase the spraying speed of the injection agent, accordingly, the mixing effect of the sewage and the injection agent is enhanced, on the other hand, the injection agent is injected into sewage at a high speed,the flowing speed of the sewage is further increased, so that the negative pressure of the sewage when the sewage passes through the chemical spraying pipe and the aeration pipe is higher, and the following chemical spraying mixing and aeration effects are improved.

The invention relates to a brush head module used for a cleaning machine and the cleaning machine, the brush head module used for the cleaning machine comprises a shell, an air guide channel is formed in the shell, the air guide channel is provided with a dust collection port and an air outlet communicated with the dust collection port through fluid, and the air guide channel is communicated with the air outlet along an airflow flowing path. The air outlet is located at the downstream of the dust suction port; the brush head is used for sweeping an object to be cleaned and is arranged at the dust collection opening of the air guide channel; the fan is characterized in that a flow guide channel used for allowing fluid to flow towards the air outlet is arranged in the air guide channel, and the flow guide channel spirally extends along a fluid flowing path. The flow guide channel spirally extends, so that a rotating flow field is generated for mixed gas sucked into the air guide channel, the flowing speed of the mixed gas is increased, dust on an object to be cleaned is quickly sucked into the air guide channel, and the dust collection effect is improved.