83results about How to "Increase outlet pressure" patented technology

The invention discloses a system for differential recovery of potential energy of a boom of an oil liquid hybrid power excavating machine. The system comprises a variable capacity pump, a multi-channel valve, a boom cylinder, an operating handle, a controller, a hydraulic control reversing valve, a hydraulic control reversing and throttling valve, a hydraulic control unloading valve, an energy accumulator, an electro-hydraulic proportional valve and a one-way valve. The controller is used for controlling the electro-hydraulic proportional valve and the variable capacity pump according to pressure at an outlet of the variable capacity pump and a pressure signal of the energy accumulator, thereby solving the flow distribution problem of the energy accumulator and the variable capacity pump. The energy accumulator is an energy storage element which can transform descending kinetic energy and potential energy of the boom to hydraulic energy and reasonably distribute the energy for a main power source and an auxiliary power source, and a working device is driven by the pump-energy accumulator. The system can avoid the waste of a large amount of the descending kinetic energy of the boom, reduce the energy transformation link, enable an engine to stably work in a high-efficient fuel oil region, improve the fuel coil economy of the excavating machine and reduce the emission of the system.

The present invention relates to a method and a device for separating liquid or solid particles in air flow, especially to a composite oil gas separation method applied to the crankcase blow-by of internal combustion engine and a composite oil gas separator. The method adopts a mode of combining an active centrifugal type separation and a passive cyclone type separation for separating. The device is mainly composed of an active centrifugal type separator and a passive cyclone type separator. The active centrifugal type separator adopts a one-stage separation. The passive cyclone type separator adopts a two-stage separation. The air outlet (C) of active centrifugal type separator is communicated with the gas tangential inlet (D) of passive cyclone type separator. The center of separation chamber of passive cyclone type separator is installed with an exhaust insertion tube (13) for forming a gas outlet (E) of passive cyclone type separator. The lower end of separation chamber of passive cyclone type separator is installed with an engine oil outlet (F) communicated with the crankcase. The method and the device of the invention have the characteristics of high separation efficiency and suitability for the changing of blow-by along with the work condition.

The invention relates to a degassing centrifugal apparatus such as a pump and to a process for pumping and degassing a fluid. The apparatus has a rotatable hollow rotor connected to a stationary fluid inlet at one end and a stationary liquid outlet at the opposite end and a gas exhaust in the center thereof. The rotor has at its inlet end a bladed wheel with arcuate blades. The bladed wheel accelerates a fluid flow in said rotor inlet end and causes the fluid to rotate at a peripherical velocity higher than the peripherical velocity of said rotor inlet end. The apparatus is especially useful for pumping and degassing backwater in the production of paper or board in a paper machine.

The invention discloses a method for high efficiency enrichment culture of microalgae. According to the invention, an airlift bioreactor and an illuminated airlift bioreactor are in series connection; the airlift bioreactor contains microalgae and a microalgae culture medium, air is introduced to realize airlift and aerobic culture, and a microalgae cell enrichment apparatus is employed in a liquid phase loop; the illuminated airlift bioreactor contains microalgae enriched from the airlift bioreactor and a microalgae culture medium, gas containing CO2 is introduced to realize airlift, supply of CO2 and desorption of O2, and the introduced gas containing CO2 is industrial CO2-containing tail gas which passes through a conveying pretreatment apparatus and then enters into the illuminated airlift bioreactor. Compared with the prior art, the method provided by the invention has the following advantages: high efficiency enrichment of microalgae cells and accumulation of high-content lipid of the microalgae cells are realized, a utilization rate of CO2 is increased, O2 desorption capability is enhanced, culture apparatuses are reduced, etc.

A modular cooling system includes a compressor and a microchannel heat exchanger for cooling a heat generating device such as a semiconductor.

An adjustable floating seal piston type pressure regulator valve of the type wherein a spring biased piston engages a floating seal in a regulator body valve chamber to open and close a valve seat outlet in the valve chamber. The valve seat comprises a separate member from the regulator body and is adjustably movable in the valve chamber toward and away from the piston, such that movement of the valve seat toward the piston serves to lower a regulated outlet pressure and movement of the valve seat away from the piston serves to increase the regulated outlet pressure. The valve seat member is moved by an adjustment screw that is externally accessible by an adjustment tool. A tubular expansion chamber surrounds the regulator body and provides an enlarged expansion chamber that reduces valve recycle time. Convolutions or ribs in the expansion chamber housing enhance heat through transfer to the valve gases.

The invention relates to a hydraulic energy recovery system. The system includes at least one hydraulic motor (10), two main channels (12, 14) serving as the feed channel or the exhaust channel of said at least one motor, a low-pressure fluid source (16, 52, R) and a high-pressure accumulator (20) forming a high-pressure fluid source. Said system can operate in an energy recovery mode, in which the main feed channel (12) is connected to the low-pressure fluid source (16, 52) and the main exhaust channel (14) is connected to the high-pressure accumulator (20), and an energy release mode, in which the connections are reversed. The low-pressure fluid source comprises a high-flow booster pump (16) which can deliver a sufficient fluid flow in order to supply the at least one hydraulic motor (10) with fluid while said motor is operating at maximum speed in the energy recovery mode and an adjustable pressure limiter (52) which can be controlled in order to vary the pressure of the fluid at the outlet of the low-pressure fluid source.

The invention discloses an air conditioner device. The air conditioner device comprises a case, an airflow guide-in device, a supersonic flow nozzle, two valve pieces, a vacuum pipe, a communication device, a heater, a humidifier and an airflow guide-out device. The case comprises an air inlet and an air outlet. The airflow guide-in device and the airflow guide-out device are arranged in the positions, close to the air inlet and the air outlet, in the case respectively. The supersonic flow nozzle comprises an air inlet part, a throat part and an exhaust part which are sequentially connected and are coaxial. The area of the section is gradually reduced from the end, far away from the throat part, of the air inlet part to the other end, close to the throat part, of the air inlet part, and the area of the section of the throat part is smaller than that of the exhaust part. The two valve pieces are arranged at the two ends of the supersonic flow nozzle respectively. The vacuum pump is communicated with the supersonic flow nozzle. The communication device is connected to the air inlet part and the exhaust part. The heater and the humidifier are arranged between the supersonic flow nozzle and the air outlet.

A pressure accumulation water-tank located at one side of container of the reactor core is 10-30m higher than top of the reactor core. A filling pipe at bottom of the water-tank is connected to an inlet pipe of core refrigerant. Rising pipe from outlet pipe of core refrigerant passing through the water-tank is 5-30 cm higher than water surface in water-tank. Hydrostatic pressure type mechanism for driving control rods utilizes two sets of independent shutdown systems. Leading out of surplus heat and safe watering are carried out by water-tank. Raising plate type hot vaporizer having intermediate course reduces loops in interspace as well as size of equipment and manufacturing cost. The shutdown systems make the reactor core possess high intrinsic safety. The reactor core will never be melted or burned and meet requirement of 'zero radioactivity' for environment under condition of any accidents. The reactor core is applied to heat supply in low temperature and seawater desalination.

A hydraulic control device for a hybrid transmission is designed such that the cooling and lubrication oil line of the system are in oil communication even before the main oil line pressure reaches the set pressure of the overflow valve, so as to lubricate the transmission as soon as possible. The hybrid transmission design further provides an overpressure protection for the cooler. The hybrid transmission further uses a proportional pressure reducing valve to control the lock-up clutch, thus making for the improvement of its braking performance.

The invention relates to a dynamic prewhirl and axial push type hydrocyclone which is composed of a medium prewhirl part and a hydrocyclone separating part. The invention is characterized in that materials are fed along the axial direction, a turnstile is used for prewhirl, the axial dimension of the turnstile is short and is not easy to vibrate; and the turnstile also has the function of boosting pressure, the pressure drop of the hydrocyclone is very low; a ring-shaped material axial propelling and accelerating structure is arranged in the outer ring area of the end part of the turnstile so that the axial flow on the periphery of the hydrocyclone is increased, the heavy component on the border can faster reach a heavy liquid outlet, the treatment capacity is increased, the outflow of the unseparated inner medium is reduced, and the axial velocity gradient between layers is reduced, thus avoiding entrainment and blending. A short-circuit-proof baffle cap is arranged at the outlet of light liquid which flows backward so that the feed mixed medium is prevented from flowing to the outlet of light liquid, namely short circuit outflow while the separating efficiency is increased. The invention is applicable to the efficient separation of liquid-solid two-phase with solid particles or oil-water two-phase with solid particles.

An air conditioning apparatus includes a casing having an inlet and an outlet, an airflow import device, a nozzle, two valves disposed at two ends of the nozzle, a vacuum pump connected through the nozzle, a connecting device, a heater, a humidifier, and an airflow export device. The airflow import and export devices are disposed at positions near the inlet and the outlet inside the casing. The nozzle includes an intake portion, a throat, and an exhaust portion connected sequentially and coaxially. A cross-sectional area of the intake portion decreases gradually from one end away from the throat to the other end close to the throat. A cross-sectional area of the throat is smaller than that of the exhaust portion. The connecting device is connected to the intake portion and the exhaust portion. The heater and the humidifier are disposed between the nozzle and the outlet.

The invention discloses a flooding-type varnished wire cable for a high-power handheld transformer winding. Two ends of a minuteness varnished wire harness cable are respectively stretched into two copper pipe center holes to achieve connection, and the sections of joints of two copper pipes and the minuteness varnished wire harness cable are in a semicircular shape in mould-pressing mode; a polytetrafluoroethylene sleeve is sleeved outside the two copper pipes and the minuteness varnished wire harness cable, and a cooling water channel used for passing of ion cooling water is formed between the minuteness varnished wire harness cable and the polytetrafluoroethylene sleeve; the wall of the first copper pipe of a section of gap between the left end of the minuteness varnished wire harness cable and the right end of a water inlet joint inside the first copper pipe center hole is provided with a water inlet; and the wall of the second copper pipe of a section of gap between the right end of the minuteness varnished wire harness cable and the left end of the water inlet joint inside the second copper pipe center hole is provided with a water outlet. The minuteness varnished wire harness cable is soaked in deion cooling water, and a large amount of work heat can be taken away.

The invention provides a water outlet device of a plunger / piston pump. A flow passage switching pipeline structure is added between a water inlet passage and a water outlet passage, a first slider which is fixedly connected with a Venturi pipe device and slides synchronously is arranged in the flow passage switching pipeline structure, an elastic return device guiding along a guide slideway in the return direction and a liquid suction pipeline are arranged between the first slider and the guide slideway, and a second slider which is butted against the Venturi pipe device is arranged at the other end of a flow passage switching pipeline and is in sliding seal with the guide slideway. In a liquid suction working condition, a passage of the Venturi pipe device is communicated with the water inlet passage and the water outlet passage; and in a normal working condition, the Venturi pipe device is pushed to a stagger position of the water inlet passage and the water outlet passage, passage area between the water inlet passage and the water outlet passage is enlarged, local pressure loss of constant-pressure working media flowing through the position between the water inlet passage and the water outlet passage is reduced greatly, and accordingly water outlet pressure is increased with wasted work not increased. The invention further provides a cleaning machine.

The invention discloses a hydraulic supply device for an engine. The supply device is used for providing driving force. When the outlet pressure is lower than the set control pressure, a single-pointpressure detection unit is in the first state; a motor is driven to work by controlling a motor control unit, and furthermore, an oil pump is driven to operate, so that engine oil flows therein through an inlet and flows out of an outlet; and the outlet pressure is increased. When the outlet pressure is equal to or greater than the set control pressure, the single-point pressure detection unit isin the second state; and at the moment, a delay control module on the motor control unit continues to drive the motor to work for a delayed period of time and then stop according to the set delaying duration, so that the outlet pressure is increased continuously. By adjusting the delaying duration, the outlet pressure can be precisely controlled within the required pressure range. By means of thehydraulic supply device for the engine, on the premise that the structure which is simple to the greatest extent and low-cost elements are adopted, hydraulic output of the pressure within the specified range is provided outwards stably; and in addition, the hydraulic supply device does not need calibration basically and is convenient and precise to control.

The invention discloses an air conditioning system, which comprises a compressor device, an outdoor heat exchange device, an indoor heat exchange device, a first valve device, a second valve device, an air-liquid separating device, an expansion valve device and a jetting device, wherein the first valve device comprises an opening C1, an opening D1, an opening E1 and an opening S1, the second valve device comprises an opening C2, an opening D2, an opening E2 and an opening S2, an exhaust opening of the compressor device is communicated with the opening D1, a first opening of the outdoor heat exchange device is connected with the opening C1 in a switchable manner, a second opening of the outdoor heat exchange device is connected with the opening E2, a first outlet of the air-liquid separating device is connected with the expansion valve device, a second outlet of the air-liquid separating device is connected with an inlet of the compressor device, the expansion valve device is connected with the opening D2, a first opening of the indoor heat exchange device is connected with the opening C2, and a second opening of the indoor heat exchange device is connected with the opening E1. The air conditioning system provided by the invention has the advantages that carbon dioxide can be used as a refrigerant, and in addition, the available energy loss is less.

The invention provides a cryogenic liquefied air energy storage system capable of improving efficiency through a circulating compressor. The system is arranged in the designable range of the circulating compressor, and the outlet pressure of the circulating compressor is increased to the greatest extent. Due to the fact that the outlet pressure of the circulating compressor is increased, the heat storage temperature can be increased, the refrigerating capacity, of unit mass, of a refrigeration expander is improved, the air outlet work, of unit mass, of a liquid expander is improved, and accordingly the system efficiency is improved.

The invention provides an impact-resistant reverse unloading distribution type high-precision gas pressure reduction device. The device is designed by adopting a distribution pressure guide structure, outlet low-pressure gas at different positions is guided to the upper cavity of the valve core through feedback holes located in different sections of the valve core, the pressure deviation of the upper cavity and the lower cavity of the valve core is reduced, the upper cavity of the pressure reducing device is rapidly and accurately modeled in the adjusting process, and the sensitivity and the stability are improved. Meanwhile, the influence of inlet pressure is eliminated by adopting a reverse unloading structure design, the valve core has the unloading rod function, the high-pressure stress part of the valve element is isolated from the low-pressure stress part through the sealing assembly, pressure unloading design is realized, the upper sealing surface and the lower sealing surface of the valve body are subjected to equal-section design, so that the acting force of the inlet pressure acting on the upper end surface and the lower end surface of the valve core moving part is counteracted, the complete unloading of the inlet pressure is realized, so that the valve element is not influenced by the change of the inlet pressure in the adjusting process, so that the opening degree of the valve element is only influenced by the pressure change of the outlet.

The invention discloses an ultrahigh-purity gas dilution system. The ultrahigh-purity gas dilution system comprises a diluting gas source and a gas-to-be-diluted source, the diluting gas source is connected with a first diluting gas pipeline and a second diluting gas pipeline, the second diluting gas pipeline is connected with an outlet, the first diluting gas pipeline and the second diluting gas pipeline are respectively provided with a sonic nozzle, the gas-to-be-diluted source is connected with the first diluting gas pipeline through a gas-to-be-diluted pipeline, the gas-to-be-diluted pipeline is provided with a mass flow controller, and the first diluting gas pipeline is connected with at least one shunting dilution device connected with the second diluting gas pipeline. The mass flow controller, the sonic nozzles and the at least one diluting pipelines are arranged to continuously change the dilution concentration of a gas and improve the outlet pressure. Shunting and multi-time dilution are carried out through the at least one shunting dilution device, so the diluting proportion range is enlarged under a constant flow, the consumption of the diluting gas is saved, and large scale dilution is also reached.

The invention discloses an electronic control pilot-operated type high-precision large-flow regulating valve. The electronic control pilot-operated type high-precision large-flow regulating valve comprises a first connection pipe which is connected with a high-voltage large-flow valve. The high-voltage large-flow valve comprises a shell, wherein the first connection pipe is connected with one side of the shell, a valve seat is arranged on the lower portion inside the shell, and a valve rod is installed in the valve seat. An electronic pressure controller can select and regulate a fixed point signal source, wherein the current of an external analog signal ranges from 4 mA to 20 mA or the voltage of the external analog signal ranges from 1 VDC to 5 VDC, and feedback and error signals are limited in a programmable mode. The electronic control pilot-operated type high-precision large-flow regulating valve provides closed-loop feedback control for a system, has the supernormal accuracy and response time, and can be connected with a computer to conduct internet control.

The invention provides a desulfurized ash delivery device which comprises a general ash hopper arranged below a secondary dust remover. The general ash hopper is provided with a plurality of ash hoppers. Each ash hopper is connected with the general ash hopper through a switch valve and a first extensible node. The general ash hopper is connected with an air supply pipe and is provided with a chute. The chute is connected with a first ash delivery channel. The first ash delivery channel is connected with a middle connecting pipe. The middle connecting pipe is connected with a shutoff valve. A first exhaust gas opening is formed in the upper portion of the middle connecting pipe. The middle connecting pipe is connected with a feeding machine. The shutoff valve is connected with a second ash delivery channel. The second ash delivery channel is connected with a third ash delivery channel through a diverting device. The other end of the third ash delivery channel is sequentially connected with a second extensible node and a connecting pipe. A second exhaust gas opening is formed in the upper portion of the connecting pipe. The desulfurized ash delivery device is capable of delivering desulfurized ash smoothly to a rection tower and preventing phenomena of building bridge, erecting bridge and jam from occurring in the process of the desulfurized ash delivery.

The invention relates to a desulphurization pump with a combined impeller rotor. The desulphurization pump comprises the combined impeller rotor, a pump case, a pump inlet part, a pump outlet part anda pump back cover plate, wherein the pump inlet part, the pump outlet part and the pump back cover plate are installed on the pump case to form a pump cavity for containing the combined impeller rotor in an enclosure manner; the combined impeller rotor comprises an impeller body installed on a pump shaft, the impeller body comprises a metal hub lining and a nonmetal blade lining body with which the peripheral surface of the metal hub lining is wrapped in a compression-molding manner, and the nonmetal blade lining body is made from an ultrahigh molecular weight polyethylene material. Accordingto the desulphurization pump with the combined impeller rotor, the deadweight of the impeller body is reduced, and the material cost is saved; in addition, the strength of the impeller body is also guaranteed while it is avoided that the impeller rotor is too thick; the impeller body is resistant to wear and corrosion, and a vibration value of the pump can be reduced; meanwhile, processing is easy, the cost is low, and the running efficiency of the pump is greatly improved.

The invention relates to a mechanical-electrical-hydraulic compound soft-starting / stepless speed regulating drive mechanism on high-power heavy-duty equipment. The mechanism comprises a power input shaft sleeved on a planet carrier output shaft in a sliding manner. One end of the power input shaft is connected with a main electric motor, and the other end thereof is fixed in an inner hole of the planet carrier output shaft and is connected with a sun wheel shaft positioned in the inner hole of the planet carrier output shaft so as to form gear clearance float; at least two groups of planet wheels are fixed around the planet carrier output shaft through planet wheel shafts at one circle in a winding manner; each planet wheel is meshed with the sun wheel shaft peripherally, and is meshed with an inner ring gear positioned outside the planet carrier output shaft at the same time; a gear coupling which is connected with the inner ring gear along the gear direction to form radial gear clearance float is also included; a bevel gear fixed on the gear coupling is meshed with a conical tooth shaft connected with a low-power helper motor; and a bevel gear shaft for connecting the bevel gear and a hydraulic rotation function element are also arranged on the gear coupling at the same time. The mechanical-electrical-hydraulic compound soft-starting / stepless speed regulating drive mechanism integrates the functions such as soft-starting / stepless speed regulating, etc., and has the advantages of high transmission efficiency, small noise, compact structure, reliable performance and low cost.

The invention provides a fuel gas shock wave ash disposal system equipped with an Archimedes spiral accelerating installation, comprising a combustible gas pipeline, a combustible gas valve, a combustible gas flow meter and an air duct, an air valve and an air flow meter; the combustible gas valve and the combustible gas flow meter are connected in sequence by the combustible gas pipeline, the air valve and the air flow meter are connected in sequence by the air duct, the combustible gas flow meter is connected with a premixer by the combustible gas pipeline, the air flow meter is connected with the premixer by the air duct, the right end of the premixer is connected with an igniter by a premixing pipeline, the igniter is connected with an Archimedes spiral explosion mixture space formed by arranging pins in the explosion tube, the explosion mixture space is connected with an output tube. In the invention, pins are arranged on the inner wall of the explosion tube according to the Archimedes spiral, thus forming a disturbed cone-type structure, therefore, pressure at the outlet of the explosion mixture space is greatly increased and fuel gas shock wave with powerful pulse energy is generated when cleaning ash of high viscosity and high adhesive attraction on a heat exchange surface, ensuring better ash removal effect.

The invention relates to a compound impeller rotor. The compound impeller rotor comprises an impeller body installed on a pump shaft, the impeller body comprises a metal hub lining and a non-metal blade lining body wrapped and machined on the peripheral surface of the lining of the metal hub in a compression molding mode, and the non-metal blade lining body is composed of an ultrahigh molecular weight polyethylene material. The impeller body is compounded by two materials of metal and plastic. Excellent abrasive resistance of ultrahigh molecular weight polyethylene and high strength of metal are combined, the weight of the impeller body is reduced, and the material cost is reduced; in addition, the phenomenon of high thickness of the impeller body is avoided, and the strength of the impeller body is ensured. The impeller body is wear-proof and corrosion-proof, in addition, the unbalanced eccentric torque and starting inertia of the impeller body are reduced, and the balance degree of the impeller body is ensured; the dynamic balance degree of the impeller body is ensured, the vibration valve of a pump can be conveniently reduced, the rotor is easy to machine and low in cost, and the running efficiency of the pump is greatly improved.

The invention relates to a device for preparing a supported automotive catalyst with a pulsating hydrogenation reduction method and an application of the device. The device comprises a heat exchange type hydrogen quantifying cylinder assembly and a boiling fluidized bed reactor assembly which are connected through a feedback gas channel control system assembly, wherein a gas inlet and a gas outlet of the boiling fluidized bed reactor assembly are connected with an outer sleeve hydrogen outlet flange and an inner tube nest reaction exhaust gas inlet flange on the heat exchange type hydrogen quantifying cylinder assembly respectively through a gas channel equipped with vacuum pressure gauges and stop valves. Compared with the prior art, the device has the advantages that CeO2 particles serving as a catalyst supporter can be prevented from aggregation, and precious metal particles serving as active components can be prevented from growing and aggregation, so that the efficiency of preparation of the CeO2 supported automotive catalyst and catalytic activity of the product can be improved to a great extent.

The invention discloses a liquid-gas control system for controlled-pressure drilling equipment, relates to the technical field of drilling equipment, and aims to solve the problems of inaccuracy in controlling the annular pressure of a well in the conventional drilling process. The liquid-gas control system for the controlled-pressure drilling equipment provided by the invention comprises a power source, and a throttling valve control component, a hydraulic control flat plate gate valve control component, a pneumatic control flat plate gate valve control component and an oil return pump system pneumatic control flat plate gate valve control component which are connected with the power source. Accurate control of the annular pressure of the well is realized in a combination way of pneumatic control and hydraulic control. Moreover, one branch of compressed gas is connected to an oil outlet pipeline of an oil storage device through a liquid-gas pump, so that the outlet pressure of liquid can be effectively raised.