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35results about How to "Guaranteed air supply" patented technology
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Vapor-injected multi-connected air conditioning system
InactiveCN103486780AImprove reliabilityGuaranteed air supplyMechanical apparatusEfficient regulation technologiesEngineeringAir conditioning
The invention discloses a vapor-injected multi-connected air conditioning system. The system comprises an indoor unit, an outdoor unit, a distribution pipe, and a throttle device, wherein the outdoor unit is provided with a first electronic expansion valve capable of changing the operating state of coolant, the indoor unit is connected with the outdoor unit through the distribution pipe and the throttle device disposed on the distribution pipe of the indoor unit is used for changing the operating state of the coolant. Under the refrigerating condition, the first electronic expansion valve is fully open, while the operating state of the coolant is unchanged. The operational reliability of the vapor-injected multi-connected air conditioning system can be improved.
Owner:QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
Multi-stage compressor and refrigerating system provided with same
InactiveCN105114327AReduce aerodynamic noiseSpeed up the gas flowPump componentsRadial flow pumpsImpellerGas compressor
The invention provides a multi-stage compressor and a refrigerating system provided with the same. The multi-stage compressor comprises a plurality of stages of compression cavities, diffusers (40) and air supplying structures (50). An impeller is arranged in each stage of compression cavity. An air passing channel (20) is arranged between every two adjacent stages of compression cavities. Every two adjacent stages of compression cavities are divided into an upstream compression cavity (11) and a downstream compression cavity (12). The diffusers (40) are arranged in the air passing channels (20). The air supplying structures (50) are arranged on at least one air passing channel (20) and located between the diffusers (40) corresponding to the upstream compression cavities (11) and the downstream compression cavities (12), or the air supplying structures (50) are located in the diffusers (40). By the adoption of the technical scheme, the problems that in the prior art, a compressor is prone to operating unstably, the circulating efficiency of a refrigerating system is low, and pneumatic noise is high can be effectively solved.
Owner:GREE ELECTRIC APPLIANCES INC
Gas water heater and exhaust controlling method thereof
ActiveCN105757998AStable currentGuaranteed air supplyFluid heatersCombustion regulation systemsCombustion chamberControl signal
The invention discloses a gas water heater. The gas water heater comprises a combustion chamber, a fan, a constant-current regulating module and a control module, wherein the fan is used for conveying air to the combustion chamber and discharging the combustion tail gas in the combustion chamber out of the chamber; the constant current regulating module is used for collecting current signals of the fan and regulating the fan to run in constant current according to the current signals and control signals of the fan; and the control module is used for outputting the control signals of the fan to control the fan. The gas water heater has the advantages that when the exhaust is not smooth, the normal air supply in the combustion chamber can be guaranteed to carry out normal combustion and guarantee the safety. The invention also discloses an exhaust controlling method of the gas water heater.
Owner:WUHU MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD
Dual-fuel combustion chamber nozzle of combustion gas turbine
ActiveCN103672969AAvoid uneven dilutionImprove blending effectContinuous combustion chamberCombustion chamberDiluent
The invention relates to a dual-fuel combustion chamber nozzle of a combustion gas turbine, and belongs to the technical field of combustion gas turbines. The dual-fuel combustion chamber nozzle comprises an axial center fuel channel, a peripheral axial annular fuel channel, a peripheral axial annular diluent gas channel, a first-level peripheral radial-direction annular air channel and a second-level peripheral radial-direction annular air channel, wherein the peripheral axial annular fuel channel, the peripheral axial annular diluent gas channel, the first-level peripheral radial-direction annular air channel and the second-level peripheral radial-direction annular air channel are arranged to be coaxial with the axial center fuel channel. The nozzle supplies fresh air to the head of a combustion chamber in a two-stage mode, meanwhile a diluent is divided into three plumes, one plume is supplied to fuel, one plume is supplied to first-level air, and another plume is supplied to second-level air; the ratio of the three plumes of the diluents can be adjusted according to the result of optimizing the performance of the combustion chamber, so that the sufficient air is supplied to the fuel for supporting combustion, and the good balance of efficient combustion and reduction of flame temperature is obtained; secondly, the diluents, the fuel and the air are mixed well and then enter a flame tube to take part in combustion, so that addition of the diluents does not disturb a inner flow field in the combustion chamber, and stability of combustion and good outlet temperature distribution are ensured.
Owner:CHINA UNITED GAS TURBINE TECH CO LTD
Heat pump system for increasing air supplementation amount through heat recovery and control method thereof
ActiveCN108088116ASolve the problem of insufficient air supplyIncrease the amount of gasMechanical apparatusHeat pumpsSolenoid valveRecuperator
The invention discloses a heat pump system for increasing the air supplementation amount through heat recovery and a control method thereof. The heat pump system comprises a two-stage compressor, an indoor heat exchanger, an outdoor heat exchanger and a flash evaporator. The heat pump system is characterized in that the heat pump system further comprises a heat return air supplementation device; the heat return air supplementation device comprises a heat storage heat exchanger, a first branch circuit and a second branch circuit; the heat storage heat exchanger recycles heat of a two-stage compressor shell; the first branch circuit enables a second end opening of the indoor heat exchanger to be connected with an inlet of the heat storage heat exchanger through a first heat return solenoid valve; the second branch circuit enables a second end opening of the outdoor heat exchanger to be connected with an inlet of the heat storage heat exchanger through a second heat return solenoid valve;and an outlet of the heat storage heat exchanger communicates with the flash evaporator through a pipe. According to the heat pump system, the heat of the two-stage compressor shell is recycled for increasing the air supplementation amount, so that the problem that the air supplementation amount, required in the high-frequency running process, of a low-temperature variable frequency heat pump system is insufficient is solved; and meanwhile, the heating capacity and the refrigerating capacity are increased.
Owner:GREE ELECTRIC APPLIANCES INC
Water-cooled biomass boiler anti-coking method and device
The invention provides a water-cooled biomass boiler anti-coking method and device. A helical blade is welded to a hollow shaft, and the hollow shaft is internally provided with a water inlet pipe; the tail end of the water inlet pipe and the tail end of the hollow shaft form a jacket structure to guarantee that cooling water can be recycled smoothly; water enters the water inlet pipe, passes through the hollow shaft and finally flows out of a water outlet pipe; jacket structures including the water inlet pipe, the hollow shaft, the helical blade and the like are adopted, the helical blade smashes coke blocks in a hearth and sends the coke blocks out of the hearth, normal air feeding at the bottom of the hearth is guaranteed, fuel can be burnt completely, and the coking problem is solved; the heating temperature of steel is lowered through circulating of water, universality of selected materials is guaranteed, a special material resistant to a high temperature is not needed, and only ordinary steel is needed; and an automatic deslagging function is achieved, and ash generated after the fuel is completely burnt is discharged out of a furnace along with the smashed coke blocks through rotation of the helical blade.
Owner:JIAOHE GREAT RESOURCES CO LTD
Air supplying system and method of experiment table of small supercharged boiler
InactiveCN103629656AElectrical regulation responds quicklyHigh trafficAir/fuel supply for combustionSteam boilersThermal energyFlue gas
The invention relates to an air supplying system and method of an experiment table of a small supercharged boiler. The air supplying system comprises a supercharger and the supercharged boiler, wherein an air outlet of the supercharger is connected with an air inlet of the supercharged boiler by a pipeline. The air supplying system is characterized by comprising a flue-gas turbine and a roots blower, wherein a flue-gas outlet of the supercharged boiler is connected with the flue-gas turbine by a pipeline; the flue-gas turbine is coaxial to the supercharger; an air outlet of the roots blower is connected with the air inlet of the supercharged boiler by a pipeline. The air supplying system has the advantages that the roots blower provides high-pressure air for the supercharged boiler to start the supercharged boiler; the air is compressed into supercharged air by the supercharger, the supercharged air enters the supercharged boiler, high-temperature flue gas exhausted by the supercharged boiler pushes the flue-gas turbine to do work, the flue-gas turbine converts heat of the high-temperature flue gas into kinetic energy and then drive the supercharger.
Owner:HARBIN ENG UNIV
Underground local ventilator power supply system
ActiveCN103711520AGuaranteed air supplyGuaranteed to workMining devicesPower network operation systems integrationUnderground tunnelEngineering
The invention discloses an underground local ventilator power supply system. One power special supply circuit is additionally added for supplying power for fans and controlled by a spare fan switch on a basis of a power supply system with two fans, two power supplies, three special power supply lines and two closed locks so as to ensure the power special supply circuit supplies power normally when a fan special supply circuit has failure, so that unplanned wind stopping is avoided. Through the underground local ventilator power supply system, safety of power supply for a local ventilator on a coal mine underground tunneling working surface is improved; the situation of unplanned wind stopping on a tunneling head caused due to reasons of circuit failures, manual error operation and the like can be reduced and avoided; and potential safety hazard brought for production due to increase of gas of the tunneling head caused due to the unplanned wind stopping can be eliminated.
Owner:CHINA COAL XINJI ENERGY CO LTD
Civil air defense project ventilation system
InactiveCN109373491AQuality assurancePhysical health effectsGas treatmentDispersed particle filtrationFiltrationEngineering
The invention relates to a civil air defense project ventilation system comprising a door frame and a door body arranged in the door frame and further comprising a first air inlet pipe. A suction ventilator is connected to the end, located indoors, of the first air inlet pipe. An air outlet pipe is connected to the air outlet end of the suction ventilator. A filtration box and a detection sectionare arranged between the first air inlet pipe and the suction ventilator sequentially. A second air inlet pipe communicates with the first air inlet pipe. A third valve and a purifier are connected between the second air inlet pipe and the suction ventilator sequentially. During use, an external power source is connected, the suction ventilator is driven, at the moment the first air inlet pipe sucks outdoor air to the interior, the sucked-in air passes through the filtration box first and is then detected so as to judge whether the air contains harmful gas, if yes, the air is introduced into the purifier to be purified, and thus the air entering the interior is not liable to injure human bodies. The civil air defense project ventilation system has the effects that when outside air is poorin quality, the quality of the air entering the interior can still be ensured.
Owner:陕西蓝天金盾人防设备工程有限公司
Rotary type ladle baker
ActiveCN108941525AImprove combustion efficiencySave resourcesMelt-holding vesselsCooking & bakingHeating time
The invention discloses a rotary type ladle baker and belongs to the field of ladle baking. According to the technical scheme, the rotary type ladle baker comprises a ladle cover. A fuel gas pipe is fixedly connected to the middle of the ladle cover and penetrates the ladle cover. A nozzle is fixedly connected to the end, penetrating the ladle cover, of the fuel gas pipe. An air inlet pipe is fixedly connected to the circumferential face of the ladle cover. A spiral type air channel is formed in the position, corresponding to the air inlet pipe, inside the ladle cover. The air inlet pipe communicates with the air channel. An air supply pipe is arranged at the end, close to the fuel gas pipe, of the air channel in a communicating manner. One end of the air supply pipe is fixedly connected to the ladle cover, and the other end of the air supply pipe is fixedly connected to the fuel gas pipe. An air distribution pipe is fixedly connected to the air supply pipe, and a spray nozzle is fixedly connected to the other end of the air distribution pipe. The spray nozzle is fixedly connected to the ladle cover and penetrates the ladle cover. The spray nozzle obliquely extends to the nozzle and penetrates one end of the ladle cover. By means of the rotary type ladle baker, the problems that a ladle baker is long in heating time, and the consumption of fuel gas is large are solved; and theeffects that the heating time of the ladle baker is shortened, and the consumption of the fuel gas is lowered are achieved.
Owner:青岛万恒达机械设备有限公司
Opening device and method for disassembling mining air and water pipeline flange
The invention relates to the technical field of mining equipment, and discloses an opening device and method for disassembling a mining wind and water pipeline flange. The device comprises a first supporting beam, a second supporting beam, an opening tool, a force applying rod and a pipe clamp, wherein the pipe clamp comprises a fixed section and a connecting section which are matched with the pipe diameter of a pipeline, the connecting section is fixedly connected with the two ends of the first supporting beam and the two ends of the second supporting beam correspondingly, the second supporting beam is movably connected with the opening tool, the first supporting beam is movably connected with the force applying rod, the opening tool is located between the fixing section and the force applying rod, the axis direction of the opening tool is consistent with the axis direction of the force applying rod, the tool tail is aligned with the end of the force applying rod, and the pipe clamp is used for fixing the first supporting beam and the second supporting beam with the flange. The opening device is small in size and easy and convenient to operate, can quickly open the flange which isdifficult to disassemble in various environments, saves time and labor, effectively avoids the cost increase caused by factors such as operation space limitation, and effectively guarantees the safeand stable production processes of air supply, water supply, drainage and the like of the working surface.
Owner:SHANXI LUAN MINING GRP +1
Air duct cover plate and refrigerator
PendingCN111141083AGuaranteed air supplyUniform air supplyLighting and heating apparatusDomestic refrigeratorsAir volumeIcebox
The air duct cover plate comprises an air duct cover plate and a refrigerator. The air duct cover plate comprises an air supply panel and a top plate, the air supply panel comprises a front face and aback face which are oppositely arranged, a first channel and a second channel are formed in the back face along the longitudinal direction of the air duct cover plate, the first channel and the second channel communicate with cavities corresponding to the refrigerator correspondingly, the air supply panel is sunken towards the direction of the back face to form an air guide groove; a first air inlet and a second air inlet are formed in the top plate, the first air inlet communicates with the first channel, the second air inlet communicates with the second channel, and a first air supply outlet opposite to the first air inlet is formed in the air guide groove. According to the air duct cover plate and the refrigerator, the air volume loss of the refrigerator is reduced, the air volume of each cavity is guaranteed, and air supply of the refrigerator is more uniform; and the air guide groove has an air guide effect, so that more air volume enters the cavities, and the air volume loss isfurther reduced.
Owner:HEFEI HUALING CO LTD +2
Defrosting method of dehumidifier
InactiveCN111306658AGuaranteed air supplyAchieve dehumidification effectMechanical apparatusSpace heating and ventilation safety systemsProcess engineeringDefrosting
The invention discloses a defrosting method of a dehumidifier. The defrosting method of the dehumidifier comprises the following steps that the temperature condition of a first heat exchanger in a previous period of time is detected in real time and is compared with a preset temperature; then the average temperature of a first heat exchanger before v minutes and the average temperature of the first heat exchanger before w minutes are compared with the average temperature Tna obtained in real time twice, a state that defrosting state is needed is judged as long as one temperature comparison meets a preset requirement, and then defrosting is started, meanwhile, in the defrosting process, a fan is not stopped firstly, and it is guaranteed that the effect that the fan continues supplying air and then the dehumidification is conducted through a second heat exchanger so that the dehumidification effect can be further achieved in the initial defrosting stage.
Owner:宁波德业日用电器科技有限公司
Locomotive mutual backup power supply system
InactiveCN106026349AGuaranteed normal travel lifeGuaranteed air supplyPower network operation systems integrationInformation technology support systemEngineeringStandby power
The invention discloses a locomotive mutual backup power supply system, and the power supply system comprises a standby cabinet and an inverter cabinet. The standby cabinet is a DC600V direct power supply device, is connected with two power conversion knife switches, and carries out the switching of a main loop input power supply and a main loop output filter reactor of the DC600V direct power supply device. The two power conversion knife switches are three-pole and double-throw switches, have an interlocking function, and prevent the electric crosstalk of a rectification loop. The DC600V direct power supply device is a three-phase full-bridge half-control silicon controlled rectifier phase control rectification device. The interior of the inverter cabinet is provided with an inversion power supply, and the inversion power supply is an IGBT three-phase full-bridge inversion device. When an inverter detects that the air pressure of a main air reservoir is not sufficient, the inverter outputs a 3AC380V alternating current to a compressor. When the inverter detects that the air pressure of the main air reservoir is sufficient, the power supply is stopped, so as to guarantee that the air pressure of the main air reservoir is sufficient. When an original locomotive has a power fault, the power can be switched to the standby power supply, so as to guarantee the normal operation of the locomotive.
Owner:WUHAN ZHENGYUAN ELECTRIC
Security air system for preventing slag from entering blast furnaces
InactiveCN103409574AHighlight substantiveSignificant progressBlast furnace detailsHeating stovesSlagEngineering
The invention provides the technical scheme of a security air system for preventing the slag from entering blast furnaces. The security air system comprises three 1750m<3> blast furnace air supply pipelines, one 3200m<3> blast furnace air supply pipeline and a ventilation pipeline, wherein the ventilation pipeline is communicated with the 1750m<3> blast furnace air supply pipelines respectively and is also communicated with the 3200m<3> blast furnace air supply pipeline, all the 1750m<3> blast furnace air supply pipelines are provided with pressure transmitters, pipeline butterfly valves and electronic quick-opening valves, the ventilation pipeline is provided with a pressure transmitter, the 3200m<3> blast furnace air supply pipeline is communicated with the ventilation pipeline through a first passage and a second passage respectively, each of the first passage and the second passage is provided with an air supply butterfly valve, a first pipeline is further provided with a check valve and a pneumatic quick-opening valve, and the second passage is further provided with a regulating valve. According to the technical scheme, the automatic introduction of the security air among a plurality of blast furnaces can be achieved according to the variation condition of the air pressure without the need of arranging fan equipment independently, and the phenomenon that slag enters the blast furnaces due to abnormal stop of the blast furnaces is effectively prevented.
Owner:JIGANG GRP
A heat pump system and its control method using heat recovery to increase the amount of supplementary air
ActiveCN108088116BSolve the problem of insufficient air supplyIncrease the amount of gasMechanical apparatusHeat pumpsSolenoid valveFrequency conversion
The invention discloses a heat pump system which utilizes heat recovery to increase the amount of supplementary air and a control method thereof. The heat pump system includes a two-stage compressor, an indoor heat exchanger, an outdoor heat exchanger and a flash evaporator, and is characterized in that it also includes a heat recovery and air supply device, which includes: recovery of the two-stage compressor The heat storage heat exchanger of the shell is connected to the second port of the indoor heat exchanger and the first branch of the inlet of the heat storage heat exchanger through the first heat recovery solenoid valve, and connected to the outdoor heat exchange through the second heat recovery solenoid valve The second port of the heat storage device and the second branch of the inlet of the heat storage heat exchanger, and the outlet of the heat storage heat exchanger communicates with the flash evaporator through a pipeline. The invention recovers the heat of the compressor shell to increase the air supply volume, solves the problem of insufficient air supply volume when the low-temperature frequency conversion heat pump system operates at high frequency, and simultaneously improves the heating capacity and cooling capacity.
Owner:GREE ELECTRIC APPLIANCES INC
Rotary toaster
ActiveCN108941525BImprove combustion efficiencySave resourcesMelt-holding vesselsSpray nozzleEngineering
The invention discloses a rotary type ladle baker and belongs to the field of ladle baking. According to the technical scheme, the rotary type ladle baker comprises a ladle cover. A fuel gas pipe is fixedly connected to the middle of the ladle cover and penetrates the ladle cover. A nozzle is fixedly connected to the end, penetrating the ladle cover, of the fuel gas pipe. An air inlet pipe is fixedly connected to the circumferential face of the ladle cover. A spiral type air channel is formed in the position, corresponding to the air inlet pipe, inside the ladle cover. The air inlet pipe communicates with the air channel. An air supply pipe is arranged at the end, close to the fuel gas pipe, of the air channel in a communicating manner. One end of the air supply pipe is fixedly connected to the ladle cover, and the other end of the air supply pipe is fixedly connected to the fuel gas pipe. An air distribution pipe is fixedly connected to the air supply pipe, and a spray nozzle is fixedly connected to the other end of the air distribution pipe. The spray nozzle is fixedly connected to the ladle cover and penetrates the ladle cover. The spray nozzle obliquely extends to the nozzle and penetrates one end of the ladle cover. By means of the rotary type ladle baker, the problems that a ladle baker is long in heating time, and the consumption of fuel gas is large are solved; and theeffects that the heating time of the ladle baker is shortened, and the consumption of the fuel gas is lowered are achieved.
Owner:青岛万恒达机械设备有限公司
Gas water heater and exhaust gas control method thereof
ActiveCN105757998BStable currentGuaranteed air supplyFluid heatersCombustion regulation systemsPower flowCombustion chamber
The invention discloses a gas water heater. The gas water heater comprises a combustion chamber, a fan, a constant-current regulating module and a control module, wherein the fan is used for conveying air to the combustion chamber and discharging the combustion tail gas in the combustion chamber out of the chamber; the constant current regulating module is used for collecting current signals of the fan and regulating the fan to run in constant current according to the current signals and control signals of the fan; and the control module is used for outputting the control signals of the fan to control the fan. The gas water heater has the advantages that when the exhaust is not smooth, the normal air supply in the combustion chamber can be guaranteed to carry out normal combustion and guarantee the safety. The invention also discloses an exhaust controlling method of the gas water heater.
Owner:WUHU MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD
A water-cooled biomass boiler anti-coking device
ActiveCN106594771BGuaranteed air supplyBurn fullyLighting and heating apparatusHelical bladeWater circulation
The invention provides a water-cooled biomass boiler anti-coking method and device. A helical blade is welded to a hollow shaft, and the hollow shaft is internally provided with a water inlet pipe; the tail end of the water inlet pipe and the tail end of the hollow shaft form a jacket structure to guarantee that cooling water can be recycled smoothly; water enters the water inlet pipe, passes through the hollow shaft and finally flows out of a water outlet pipe; jacket structures including the water inlet pipe, the hollow shaft, the helical blade and the like are adopted, the helical blade smashes coke blocks in a hearth and sends the coke blocks out of the hearth, normal air feeding at the bottom of the hearth is guaranteed, fuel can be burnt completely, and the coking problem is solved; the heating temperature of steel is lowered through circulating of water, universality of selected materials is guaranteed, a special material resistant to a high temperature is not needed, and only ordinary steel is needed; and an automatic deslagging function is achieved, and ash generated after the fuel is completely burnt is discharged out of a furnace along with the smashed coke blocks through rotation of the helical blade.
Owner:JIAOHE GREAT RESOURCES CO LTD
Automatic air supplementing type fresh food transportation box
InactiveCN112450149ARealize SupplementImprove survival ratePisciculture and aquariaFresh foodAir pump
The invention discloses an automatic air supplementing type fresh food transportation box which comprises a box body. An upper cover abuts against an opening in the upper end of the box body, an exhaust pipe is arranged at the upper end of the upper cover in a penetrating manner, a base is fixed to the bottom of the box body, and two pumping pipes extending into the box body are arranged at the upper end of the base in penetrating and inserting manners; and piston rods are arranged at the upper ends of the two pumping pipes in a penetrating manner, floating balls are fixed to the upper ends ofthe two piston rods, and air pumping pipes communicating with the interior of the box body are arranged on the side walls of the two pumping pipes in penetrating and inserting manners. The automaticair supplementing type fresh food transportation box has the advantages that the floating balls are arranged, when the water surface fluctuates in the transportation process, the floating balls move up and down along with the water surface, then the piston rods are driven to move, external gas is pumped by the piston rods, enters the box body through the pumping pipes and the air pumping pipes andis directly filled into water, air in the water is supplemented, and the survival rate of fresh food is increased.
Owner:郭传高
Speed boat
ActiveCN104477368AGuaranteed air supplyIncrease speedAuxillariesVessel ventillation/heating/coolingMarine engineeringMoisture
The invention relates to a speed boat. The speed boat comprises a boat body and an engine room ventilation system; the engine room ventilation system comprises two ventilation units which are symmetrically arranged on two sides of the boat body; each ventilation unit sequentially comprises an inlet, a moisture separating device and an outlet along a fluid advancing direction; the inlets are formed in an engine room deck; openings of the inlets are towards a boat bow; the length direction of the moisture separating device is arranged along the length direction of the boat body; each ventilation unit also comprises a drainage device and a settling device which is arranged at the upstream of the corresponding moisture separating device; each drainage device comprises a collector and a drainage opening which is communicated with the collector; each collector comprises a bottom surface of a fluid channel of the moisture separating device and a bottom surface of a chamber; each drainage opening is formed in the external lateral side of a board side; the outlets comprise air outlets of the fluid channels and the drainage openings of the drainage devices. Compared with the existing speed boat, air resistance generated by the engine room ventilation system of the speed boat to the boat body is relative small and improvement of the navigational speed of the speed boar is facilitated.
Owner:珠海横琴琛龙恒远船舶科技有限公司
Tank for rapid fermentation of livestock and poultry manure
PendingCN111253176AEnough oxygenGuaranteed Filtration SpeedClimate change adaptationExcrement fertilisersAgricultural engineeringPoultry manure
The invention belongs to the technical field of fermentation of livestock and poultry manure, specifically to a tank for rapid fermentation of livestock and poultry manure. The tank comprises a tank body, wherein a bottom flange, a middle flange and a top flange are arranged in the tank body; the interior of the tank body is divided into a fermentation chamber and a driving chamber; a main stirring shaft is arranged in the tank body; a plurality of stirring teeth are arranged on the main stirring shaft along an axial direction in a layered manner; the two layers of stirring teeth close to themiddle flange are ventilation stirring teeth; a top air supply channel and a bottom air supply channel are arranged in main stirring shaft and connected with the ventilation stirring teeth respectively; an air supply distributor is arranged on the middle flange; and the bottom air supply channel, the top air supply channel and the air supply distributor are connected with different fans. Accordingto the ventilation stirring teeth and the air supply distributor, air is supplied through different air ducts and fans, so air supply pressure is guaranteed, sufficient oxygen is provided for aerobicfermentation at the bottom of the tank body, fermentation efficiency and quality are improved, a period is short, demands for equipment are reduced, and the cost for purchasing the equipment is reduced.
Owner:ZHUCHENG XINZHENGDA MACHINERY CO LTD
Constant-pressure wind supply electric control system of air blower and electric control method of constant-pressure wind supply electric control system
PendingCN108107932AGuaranteed air supplyFluid pressure control using electric meansProportion integration differentiationRapid processing
The invention discloses a constant-pressure wind supply electric control system of an air blower and an electric control method of the constant-pressure wind supply electric control system. The electric control system comprises a wind pressure transmitter, an SFD (Single Frequency Dialing) signal isolator, an intelligent PID (Proportion Integration Differentiation) adjuster, a switching power supply device, a change-over switch, an electromagnetic relay and a variable frequency starting switch; the wind pressure transmitter is mounted in a wind supply pipe of the air blower; the SFD signal isolator, the intelligent PID adjuster, the switching power supply device, the change-over switch and the electromagnetic relay are integrated and mounted in a distribution box through an electric control circuit. According to the constant-pressure wind supply electric control system of the air blower, after online intelligent initiative sensing, automatic analysis and rapid processing are carried out according to the size of wind quantity, a signal is transmitted to a Roots air blower frequency converter; the frequency converter is used for adjusting the level of frequency according to the intensity of an input signal and the system is used for supplying wind under a constant-pressure state.
Owner:BAYANNAOER WESTERN COPPER
Two-shaft automatic turntable structure with built-in air ducts
InactiveCN102435217BSolve conflictsSolve the problem of winding damageMeasurement apparatus componentsEngineeringTest requirements
Owner:FLIGHT AUTOMATIC CONTROL RES INST
Condensing unit, refrigeration equipment and refrigerator car
PendingCN114659299AReduce width sizeIncrease heat exchange spaceCompressorAir-treating devicesRefrigerator carRefrigeration plant
The invention belongs to the technical field of refrigeration, and discloses a condensing unit, refrigeration equipment and a refrigerator car, the condensing unit comprises a box body, a condenser and a condensing fan, a first opening is formed in the top of the box body, a second opening is formed in the bottom of the box body, the condenser is obliquely installed at the first opening in the box body, the condensing fan is installed at the first opening in the box body, and the second opening is formed in the bottom of the box body. The condenser is located on the air inlet side of the condensation fan, the air outlet side of the condensation fan is arranged towards the first opening, and the condenser still has high heat exchange efficiency under the working condition that the installation space of the condensing unit is narrow. The refrigerating unit is adopted in the refrigerating equipment and the refrigerator car, when the installation space of the condensing unit is small, the refrigerating equipment still has high refrigerating efficiency, and the cooling capacity of the refrigerator car can still be powerfully guaranteed.
Owner:SUPERCOOL SHANGHAI REFRIGERATION EQUIP
Exhaust gas aftertreatment system and method for exhaust gas aftertreatment of internal combustion engines
ActiveCN110770419BEfficient conversionIncrease powerHybrid vehiclesVehicle seatsExhaust fumesGasoline
The invention relates to an exhaust gas aftertreatment system for an internal combustion engine with external ignition according to the Otto engine principle. The internal combustion engine is connected to the exhaust gas equipment on the side of the exhaust port, wherein an electrically heatable three-way catalytic converter is arranged in the exhaust gas equipment along the flow direction of the exhaust gas through the exhaust gas equipment, and an electrically heatable three-way catalytic converter is arranged downstream of the electrically heatable three-way catalytic converter. A four-way catalytic converter, another three-way catalytic converter is arranged downstream of the four-way catalytic converter. Before starting the internal combustion engine, the electrically heatable three-way catalytic converter and preferably even the four-way catalytic converter is also heated in order to achieve effective exhaust gas aftertreatment of the untreated emissions of the internal combustion engine as soon as the internal combustion engine is started. The exhaust gas aftertreatment system is also designed to achieve an effective conversion of pollutants even during regeneration of the four-way catalytic converter and thereby ensure particularly low emissions in all operating situations of the motor vehicle.
Owner:VOLKSWAGEN AG
Security air system for preventing slag from entering blast furnaces
InactiveCN103409574BAdjust in timeGuaranteed air supplyBlast furnace detailsHeating stovesSlagEngineering
The invention provides the technical scheme of a security air system for preventing the slag from entering blast furnaces. The security air system comprises three 1750m<3> blast furnace air supply pipelines, one 3200m<3> blast furnace air supply pipeline and a ventilation pipeline, wherein the ventilation pipeline is communicated with the 1750m<3> blast furnace air supply pipelines respectively and is also communicated with the 3200m<3> blast furnace air supply pipeline, all the 1750m<3> blast furnace air supply pipelines are provided with pressure transmitters, pipeline butterfly valves and electronic quick-opening valves, the ventilation pipeline is provided with a pressure transmitter, the 3200m<3> blast furnace air supply pipeline is communicated with the ventilation pipeline through a first passage and a second passage respectively, each of the first passage and the second passage is provided with an air supply butterfly valve, a first pipeline is further provided with a check valve and a pneumatic quick-opening valve, and the second passage is further provided with a regulating valve. According to the technical scheme, the automatic introduction of the security air among a plurality of blast furnaces can be achieved according to the variation condition of the air pressure without the need of arranging fan equipment independently, and the phenomenon that slag enters the blast furnaces due to abnormal stop of the blast furnaces is effectively prevented.
Owner:JIGANG GRP
Air supply units for mines
InactiveCN106368728BGuaranteed air supplyImprove securityTunnel/mines ventillationEngineeringSingle measure
The invention discloses an air supply device capable of ensuring ventilation in a deep pit for mines. The air supply device for mines comprises a first fan, a second fan, a first air pipe and a second air pipe; an end of the first air pipe is communicated with the first fan, the other end is the outlet; one end of the second air pipe is communicated with the second fan, the other end is sealed; several connection pipes are provided between the first air pipe and the second air pipe; on the connection pipes there are single direction air pressure switches which only allow the air to flow from the second air pipe to the first air pipe. The intersection between the second fan and the second air pipe is provided with a pressure detector. The application of the air supply device for mines can ensure the good ventilation in the mine and guarantee the safety of mining operations.
Owner:四川有色金砂选矿药剂有限公司
A Drainage System of Generator Large Shaft Air Supplement Pipe
ActiveCN112031981BAvoid enteringPrevent water ingressHydro energy generationMachines/enginesTube drainageGuide tube
The invention discloses a large shaft air supply pipe drainage system for a generator, which comprises a rotating shaft air supply pipe and a generator cover floor; the air inlet of the rotating shaft air supply pipe runs through the generator cover floor and is located above the generator cover floor; An annular support plate is arranged above the floor of the generator hood; a guide rod and a push-pull rod are arranged on the upper side of the annular support plate; an upper pressure plate is arranged at the air inlet of the rotating shaft; the upper end of the guide rod and the push-pull rod output The shafts are all connected to the upper platen; the upper end of the guide rod and the output shaft of the push-pull rod and the upper platen are connected with threaded caps; the upper platen is provided with a guide tube; the guide tube communicates with the air supply pipe of the rotating shaft. By setting the diversion pipe, the water emerging from the air supply pipe of the rotating shaft is diverted to the leakage drainage collection well, so as to prevent the water from the air supply pipe of the large shaft from entering the top of the generator, and effectively prevent water from entering the top of the generator.
Owner:张宏杰
Anti-backflow method and device applied to heat dissipation equipment and heat dissipation system
ActiveCN113365481AGuaranteed cooling effectGuaranteed air supplyEnergy efficient computingModifications using gaseous coolantsMechanical engineeringPhysics
The invention discloses an anti-backflow method and device applied to heat dissipation equipment and a heat dissipation system. The heat dissipation equipment comprises at least two fans arranged side by side and anti-backflow pieces made of a magnetic material and arranged corresponding to the fans. The anti-backflow method comprises the steps of: acquiring the working states of the fans; setting the operation parameters of an electromagnetic assembly according to the working states; and sending the operation parameters to the electromagnetic assembly, so as to enable the electromagnetic assembly to control the on-off states of the anti-backflow pieces to be matched with the working states of the fans based on the operation parameters. By controlling the electromagnetic assembly, the anti-backflow pieces adapt to various working states of the fans of the heat dissipation equipment, and normal air supply by the fans can be guaranteed no matter in a normal air blowing state or an air exhausting state. Meanwhile, once the fans fail in air blowing or air exhausting, it can be guaranteed that the anti-backflow pieces close the fans, airflow backflow is avoided, and the heat dissipation effect of the heat dissipation equipment is ensured.
Owner:XIAN YIPU COMM TECH
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