61results about How to "Solve the pressure drop" patented technology

The invention belongs to chemical industry and waste gas process field, in particular providing a process method which mixes organic waste gas purifying and resource recovery. The specific procedure is that: make the mixed waste gas pass through a filter to be filtered, and then enters into a single-seat multilevel absorption tower and contacts with a packing layer and a liquid distribution device; when the series of the single-seat tower is 3, the second-grade liquid distribution device adopts a kind of absorbent which is a mixing liquid comprising the mixing liquid which is pumped in after cooled by a heat interchanger at the bottom of the adsorption tower and the mixing liquid which generates in the middle groove of the third-grade; the third-grade liquid distribution device adopts a kind of absorbent which is a mixing liquid comprising fresh absorbent, the regenerating liquid recycled by a mixing liquid separation device and the collecting liquid collected by a collecting hopper of third-grade; when the series of the single-seat tower is N and is larger than 3, all grades of absorbent from the second grade to the N minus 2 is a mixing liquid comprising a mixing liquid generated in the middle groove of the next grade and a collecting liquid collected by the collecting hopper on the same grade, the absorbent of the N minus grade is the colleting liquid collected by the collecting hopper of the N minus 1 grade, the absorbent of the N grade is a mixing liquid comprising of pumped fresh absorbent and the regenerating liquid recycled by the mixing liquid separation device. The fresh absorbent is an environment-protected organic solvent with high boiling point, strong lipophilicity and low volatility. The invention can recycle a plurality of organic infectant in waste gas, the technics procedure is simple, practical, and the operation cost is low.

The present invention discloses a self-pressurized rotation filling bed apparatus with a whole structured filler, and applications thereof. The rotation filling bed apparatus comprises a power device and a hypergravity rotation bed, wherein the hypergravity rotation bed comprises a housing, an upper cover and a rotor, an anti-corrosion structured filler is arranged in the rotor, and the flow direction of gas in the rotation filling bed and the rotor centrifugal force direction are the same. According to the present invention, with the application of the same direction of the gas-liquid flow and the rotor centrifugal force, the rotor does work on the gas phase while the outer edge of the rotor is provided with the blade for conveying the gas, such that the self-pressurization during the deep removing process of sulfur dioxide in tail gas is achieved, and the additional addition of the pressurization fan during the desulfurization process is avoided so as to overcome the pressure reducing problem of the desulfurization apparatus; the rotation filling bed desulfurization apparatus and the process have characteristics of low cost, high operating flexibility, small occupation area and the like, and are especially for deep removal of the sulfur dioxide in the existing ship tail gas; and compared with the tower type desulfurization apparatus and the process, the desulfurization apparatus and the process of the present invention have the following advantage that: the energy can be saved by 10-15%.

The invention discloses an airborne phased array antenna phase change heat storage liquid cooling heat dissipation box, which aims to provide a phased array antenna box body with fast heat dissipation, good effect and high heat dissipation efficiency and combining liquid cooling heat dissipation and phase change heat storage. The heat dissipation box is realized through the following technical scheme: the bottom of a box body (1) is a heat dissipation base (3), the upper layer of the heat dissipation base (3) is a liquid cooling layer (4), and the lower layer is a phase change material layer (5); the liquid cooling layer is provided with an S-shaped liquid cooling flow channel, a liquid cooling inlet and a liquid cooling outlet; the phase change material layer is provided with a pluralityof honeycomb-shaped partition frame cavities enclosed between a liquid cooling layer partition plate and a box body bottom plate; the liquid cooling flow channel transfers heat out by theflow of the liquid cooling coolant; and the phase change material layer transfers heat generated by the phased array antenna to the phase change material stored in the phase change material layer by utilizing a metal partition frame connected between the partition frame cavities. The invention solves the problem that the antenna heat of the phased array antenna cannot be exported in time due to the interruption of the liquid supply under a short-time emergency condition.

The invention discloses an anti-sidetone circuit of an intercom system isolation transformer. The anti-sidetone circuit is characterized by comprising a first level microphone signal amplification circuit, an audio transformer, a subtractor, a direct current bias circuit and a second level noise compression amplification circuit, wherein a microphone input signal is transmitted to the audio transformer through the first level microphone signal amplification circuit; input signals of the subtractor are obtained from two different sampling points V1 and V2 in the first level microphone signal amplification circuit, and the signals of the two different sampling points V1 and V2 are respectively transmitted to an inverting terminal and a noninverting terminal of the subtractor, after the signals are processed by the subtractor, then the signals are transmitted to the second level noise compression amplification circuit, and attenuation eliminating treatment is performed on a local sidetone signal. By adopting such design, a driver transformer of an analog audio intercom system can be improved optimally, sidetones can be eliminated under full-duplex intercom, and multiple devices can be cascaded and independent mutually.

The invention relates to a battery balancing control method and device and a balance control system, and belongs to the technical field of battery balancing. The method comprises that whether an intelligent battery is in a charging mode is determined; if YES, a control chip in the intelligent battery obtains state information of an electric core group in the intelligent battery, and whether the intelligent battery satisfies a balancing condition is determined according to the state information of the electric core group; and if YES, the battery balancing control device balances the intelligentbattery. The battery space and weight are reduced, and the voltage balancing precision of the electric core of the battery is improved.

The invention is suitable for the field of computer switch power supplies, and provides a starting-up circuit compatible with an ATX (Advanced Technology Extended) power supply and an AT (Advanced Technology) power supply, and a computer. The starting-up circuit comprises a power interface circuit, a power type detecting circuit, a stating-up signal generating circuit and a starting-up sequential circuit; the power type detecting circuit is used for detecting the type of the power supply according to output of the power interface circuit and latching a signal outputted by the power interface circuit; when the power supply detected by the power type detecting circuit is the AT power supply, the stating-up signal generating circuit generates a low-pulse signal; when the power supply detected by the power type detecting circuit is the ATX power supply, the stating-up signal generating circuit waits the starting-up switch to trigger the low-pulse signal; and the output end of the starting-up sequential circuit is connected to a power switch signal of the power interface circuit. With the starting-up circuit provided by the invention, the compatibility problem of the AT power supply and the ATX power supply on the main board is solved effectively; and the starting-up circuit is convenient to use, the timing sequence of the AT power supply mode is strictly controlled so that the starting-up circuit is powered in strict accordance with the mode of the ATC power supply.

The invention discloses low-temperature waste heat treatment equipment for dried tail gas. The low-temperature waste heat treatment equipment comprises a tail gas treatment chamber, wherein the tail gas treatment chamber is sequentially equipped with a vacuum flash-evaporation section, a spraying and heat-collecting section, an atomizing and dust-collecting section and an electrostatic dust-collecting section from bottom to top; tail gas enters the spraying and heat-collecting section, heat is enriched by circulating water, the circulating water enters the vacuum flash-evaporation section to generate negative-pressure steam, and the negative-pressure steam is used as a heat source of a vacuum heat pump in the vacuum flash-evaporation section; and after the circulating water is cooled through flash-evaporation treatment, the circulating water is conveyed through the vacuum heat pump and is circulated, cooled tail gas sequentially enters the atomizing and dust-collecting section and theelectrostatic dust-collecting section for being further subjected to dust collection, and part of tail gas which passes through the electrostatic dust-collecting section is introduced into the spraying and dust-collecting section.

The invention provides an organic vapor deposition device and a control method thereof, and relates to the technical field of display. The organic vapor deposition device and the control method thereof aim at solving the problem of rapidly dredging a blocked nozzle during deposition. The organic vapor deposition device comprises an organic material supplying device, and a plurality of injecting heads which are connected to the organic material supplying device, wherein each injecting head comprises a pressurizing device, nozzles and lasers; the nozzles and the lasers are arranged at two opposite sides of the pressurizing device; the organic material supplying device is used for conveying output deposition air between the lasers and the nozzles; the lasers are used for emitting laser rays to the nozzles; and the pressurizing device is used for pressurizing the deposition air conveyed by the organic material supplying device and then injecting out the air through the nozzles.

The invention discloses an external water circulation system having an automatic control function and used for a TBM and an external water circulation method. The external water circulation system andthe external water circulation method solve the problems that in the prior art, internal water temperature is difficult to control, the external water pressure drop is large, and water return is difficult. The external water circulation system comprises a cooler, and an external circulating water inlet system and an external circulating water outlet system are connected to the cooler, and the cooler is connected with an internal circulating water inlet pipe and an internal circulating water outlet pipe. The external water circulation system and the external water circulation method can be used for external water circulation under different working conditions such as short-distance tunnels and long-distance tunnels. When the tunnel distance is short, water return is directly carried out through a water outlet main pipe; when the tunnel distance is long, a warm water tank is used for buffering outlet water, and the problems that under the long-distance tunnel working condition, the external water pressure drop is large and water return is difficult are solved. A first manual gate valve is used for adjusting the flow rate of the external water passing through the cooler, the internalwater temperature is further controlled, the system and method are convenient and easy to control, and the problem that the internal water temperature is difficult to control is effectively solved.

The invention discloses a nitrogen-doped porous carbon granular material for adsorbing CO2 and a preparation method of the nitrogen-doped porous carbon granular material, and belongs to the field of preparation of biomass porous carbon materials. Poplar sawdust is used as a carbon source, microalgae is used as a nitrogen source, sesbania powder is used as a binder, and the nitrogen-doped porous carbon particle material with ideal CO2 adsorption stability and good mechanical properties is prepared through high-temperature carbonization, KOH activation and extrusion granulation. The preparation method is simple, the production process is environment-friendly, and the preparation method is suitable for large-scale production.

The invention relates to a hydrogenating treatment process of waste lubricating oil and particularly relates to a process for hydrogenating treatment of the waste lubricating oil by tandem type double-boiling-bed reactor. The process is characterized by comprising the following steps: a spherical prehydrogenating treatment catalyst is added into a first boiling-bed reactor, and a spherical main hydrogenating treatment catalyst is added into the second boiling-bed reactor; after being pressurized, the pretreated waste lubricating oil enters the first boiling-bed reactor from the bottom part ofthe first boiling-bed reactor, and under the action of the spherical prehydrogenating treatment catalyst, metal ions, colloid, asphaltene and residual carbon are removed by hydrogenation; the lubricating oil pretreated by hydrogenation and hydrogen flow out of an outlet at the upper part of the first boiling-bed reactor, and enter the second boiling-bed reactor from the bottom part of the second boiling-bed reactor, and under the action of the spherical main hydrogenating treatment catalyst, the deep hydrogenation refining is carried out to remove oxygen, sulfur, nitrogen and heterocyclic aromatic hydrocarbons; after the following fractional-distillation treatment for the lubricating oil refined by hydrogenation, excellent naphtha, diesel fraction, basic lubricating-oil fraction and a little amount of asphalt heavy component oil can be obtained.

The invention relates to the field of PTC electric heaters, and in particular to a shovel fin ceramic PTC electric heater. The shovel fin ceramic PTC electric heater comprises a finned aluminum tube and a heating core arranged on the finned aluminum tube, the finned aluminum pipe comprises an aluminum pipe body with a cavity, a first cooling fin and a second cooling fin, wherein the first coolingfin and the second cooling fin are arranged on the upper end face and the lower end face of the aluminum pipe body respectively. The upper and lower sides of the cavity are attached to the upper and lower end faces of the heating core to form an upper and lower end face heat dissipation structure. The left side and the right side of the cavity are laterally pressed and molded by a mold and then are attached to the left and right end surfaces of the heating core to form left and right end surface heat dissipation structures; integrally optimized simple structure, only the structural mold of thealuminum pipe needs to be adjusted, the phenomenon that due to the fact that the pressure of the pressing pipe is not controlled in place, pressure resistance of a product is poor due to the fact that the pressure of the pressing pipe is large and ceramic pieces are broken is avoided through the left and right end face heat dissipation structures, two-face attachment of the aluminum pipe and theheating core is changed into four-face attachment, product heat dissipation performance is improved, and cost is reduced.

The invention discloses a preparation method of a porous nanofiber membrane loaded atomic-scale active site catalyst. According to the catalyst, a polytetrafluoroethylene (PTFE) porous nanofiber membrane is used as a carrier, precious metal or transition metal atoms are used as active components, the stable dispersion of metal active atoms on a PTFE porous nanofiber membrane carrier in the form ofsingle or a plurality of atoms is realized through a simple electrospinning-impregnation two-step method, and the utilization rate of the metal atoms and the number of interfacial active sites can bemaximized such that excellent catalytic performance is shown. The catalyst can be used for catalytic oxidation degradation of organic pollutants in water and atmosphere at normal temperature, and more than 90% organic pollutants can be removed without any external energy input.

The invention is an organic light-emitting display, namely OLED which including a base board and several organic light-emitting display units. The organic light-emitting display unit includes: film transistor, positive electrode, organic light-emitting structure, negative electrode and bus line. The film transistor is arranged on the base board. The positive electrode is arranged on the film transistor and the base board. The organic light-emitting structure is arranged on the positive electrode. The negative electrode is arranged on the organic light-emitting structure, the bus line is connected to the negative electrode electrically in order to reduce the resistance of the negative electrode.

The embodiment of the invention relates to a vessel side-by-side anti-collision device adapted to multiple sea conditions. The vessel side-by-side anti-collision device adapted to multiple sea conditions comprises an anti-collision air sac module, an air sac binding frame module and an atmospheric pressure stabilizing module, wherein the atmospheric pressure stabilizing module is located in the anti-collision air sac module, and is connected with a control mechanism component; the anti-collision air sac module is located in the air sac binding frame module; and the air sac binding frame moduleis fixed to the broad side of a receiving vessel through wire ropes. According to the vessel side-by-side anti-collision device adapted to multiple sea conditions disclosed by the invention, a combined structure is adopted to jointly bear extruding force generated by side-by-side of two vessels, so that the vessel side-by-side anti-collision device can be adapted to different sea conditions; through increasing or reducing the number of air sacs, the shape and the dimension of the anti-collision air sac module can be changed, so that the vessel side-by-side anti-collision device can be betteradapted to linetype flaring of the vessels, and the side-by-side spacing of the two vessels can be changed; and through the atmospheric pressure stabilizing module, the air tightness problem of the air sacs and the pressure dropping problem of the air sacs caused by the side-by-side extruding force of the two vessels are solved, the situation that when the vessel performs a side-by-side operationunder different sea conditions, the internal atmospheric pressure of the anti-collision air sacs is always kept to be a preset atmospheric pressure value is guaranteed, and the bearing capacity of theanti-collision air sac is guaranteed.

The present invention provides an organic light emitting diode display panel and a mask plate. The organic light emitting diode display panel comprises a plurality of pixel regions commonly defined byelectrodes and organic light emitting materials, the pixel regions are arranged in a matrix mode on a plane, the sizes of the pixel regions are increased in a first direction, and the pixel regions are increased in a second direction perpendicular to the first direction. The technical problem of uneven frame display caused by the voltage drop phenomenon in the prior art is solved.

The embodiment of the invention discloses a carrier storage trench gate IGBT (Insulated Gate Bipolar Translator). The first conduction type collector region, the second conduction type buffer region, the second conduction type drift region and the first conduction type body region are arranged on one side of the collector electrode; at least two gate trenches; a second conductive type source region and a carrier storage layer are arranged on the surface of the first conductive type body region surrounded by the first gate trench; the first conduction type drift region is provided with a shielding doped region, the shielding doped region is located between the second gate trench and the first gate trench, the depth of the shielding doped region is larger than the depth of the first gate trench and the depth of the second gate trench in the first conduction type drift region, and the shielding doped region surrounds the bottom of the second gate trench and the bottom of the first gate trench; an insulating layer; and an emitter. According to the invention, the concentration of the carrier storage layer can be greatly improved, the conductivity modulation effect is enhanced, the withstand voltage of the device is ensured while the conduction voltage drop of the device is reduced, and the reliability of the device is improved.

The invention relates to a conical disc type superheated steam drying device suitable for granular materials, the granular materials are in a fluidized state by utilizing centrifugal force generated by rotation of a rotating conical disc, the heat and mass transfer efficiency is high, the conical disc type superheated steam drying device is suitable for drying materials of various particle sizes such as A-type materials to D-type materials, and particularly the problem that the D-type large particles are difficult to be subjected to fluidized drying is solved. And the drying medium only performs heat and mass transfer with the material and does not participate in the particle fluidization process, so that the pressure drop problem caused by a traditional fluidized bed is avoided, the use amount of the drying medium is effectively reduced, and energy conservation is facilitated. According to the invention, materials with various particle sizes can be uniformly distributed in the dryer and fully transfer heat and mass with a drying medium, so that the problem of non-uniform drying of the materials caused by the phenomena of channeling and the like easily occurring in a traditional fluidized bed is avoided.

The invention discloses a mechanical rectification type piezoelectric cantilever beam vibration energy collector. The energy collector comprises a base, a fixed supporting end fixed on the base, a piezoelectric cantilever beam fixed on the fixed supporting end, a mass block attached to the tip end of the piezoelectric cantilever beam and an electrode support. An upper movable electrode and a lowermovable electrode are respectively arranged on the upper surface and the lower surface of the mass block, and are respectively connected with two leads of the piezoelectric cantilever beam; the electrode support is fixed on the base; an upper fixed electrode, a middle fixed electrode and a lower fixed electrode are arranged on the electrode support from top to bottom; the upper fixed electrode islocated above the upper movable electrode; the middle fixed electrode is located between the upper movable electrode and the lower movable electrode; the lower fixed electrode is located below the lower movable electrode; and the upper fixed electrode is connected with the lower fixed electrode. According to the invention, piezoelectric alternating current generated by vibration can be convertedinto direct current through a mechanical rectifier, and voltage drop of a traditional electronic rectifier is avoided.