37results about How to "Reliable continuous operation" patented technology

The invention relates to a park energy-network energy optimizing management system based on microgrids and an implementing method of the system. The energy optimizing management system is implemented by park energy scheduling and microgrid energy management. The micro power grid management system is in a three-layered structure including a microgrid energy scheduling layer, a microgrid centralized control layer and a microgrid, stored energy and load local control layer. Constraint conditions of the energy optimizing management method are guaranteed by the microgrid centralized control layer. The output of each microgrid or stored energy is determined by a microgrid and stored energy coordination control policy in a microgrid central controller; and an objective function includes three objective function subsets at different grades. Through computing the objective function values at various states by a multi-objective optimizing algorithm based on weight, the defect of randomness and intermittence of the distributed power source is overcome, the complementary problem among multiple microgrids and multiple micro power sources in the microgrid in the park energy network is solved, and optimized utilization of clean energy and maximization of system energy efficiency can be achieved.

The rotary kiln for heating and roasting kaoline by using resistance furnace includes kiln body, support wheels, feeding end, discharging end, feeding mechanism and driving mechanism formed from motor, reduction box, small gears and large gears. The described feeding end and discharging end are movably connected with two ends of roasting rotary kiln, its feeding mechanism is connected with feeding end, and it is characterized the resistance furnace is placed in the lower portion of kiln body, it also includes smoke-exhaust pipe, smoke dust recovering column and smoke-discharging system formedfrom chimney, one end of smoke exhaust pipe is fixedly connected with feeding end, and its another end is connected with smoke-dust recovering column, and between said recovering column and chimney aflue gate is connected.

A turbine housing of an exhaust gas turbocharger with a variable turbine geometry is provided, having a support ring to which vanes are fastened which are adjustable for controlling the charge pressure, and having a covering ring for the vanes. The support ring and covering ring are spaced for forming a vane gap by spacing elements which are each penetrated by a holding element which is fastened in the support ring and / or the covering ring. The spacing elements have recesses which, during the operation of the exhaust gas turbocharger, permit a direct action of the exhaust gas flow upon the holding elements.

The invention discloses an RDF (refuse derived fuel) pyrolysis and gasification system and belongs to the field of urban domestic refuse treatment. The RDF pyrolysis and gasification system mainly comprises a feeding device, a waste heat boiler and a cold slag system, and is characterized by further comprising a pyrolysis and gasification furnace and a high-temperature separator. A boiling fluidized bed is arranged at the bottom of the pyrolysis and gasification furnace, the feeding device is connected with the pyrolysis and gasification furnace, the pyrolysis and gasification furnace is connected with the waste heat boiler through the high-temperature separator, and the cold slag system is connected with the pyrolysis and gasification furnace and a slagging device of the waste heat boiler. The RDF pyrolysis and gasification system has the advantages that the RDF pyrolysis and gasification system is simple in structure, reliable to operate and capable of achieving recycling, reduced and harmless treatment of urban domestic refuse and is mainly used for urban domestic refuse treatment.

The invention discloses a system and a method for continuously treating domestic sludge. The system comprises a spiral drying and carbonizing furnace and a rotary-bed pyrolysis furnace. A domestic sludge inlet is formed in one end of a spiral drying and carbonizing furnace body, a carbonized sludge outlet is formed in the other end of the spiral drying and carbonizing furnace body, a feeding zone, a primary drying zone, a secondary drying zone, a carbonizing zone and a discharging zone are sequentially formed in the body along the direction from the domestic sludge inlet to the carbonized sludge outlet, the various drying zones are provided with combustors, water vapor outlets are formed in the various drying zones, a combustible gas outlet is formed in the carbonizing zone, and a flue gas outlet is formed in the discharging zone; a spiral conveyor of the spiral drying and carbonizing furnace is arranged in the body along the direction from the domestic sludge inlet to the carbonized sludge outlet; a carbonized sludge inlet, a pyrolysis oil and gas outlet and a solid residue outlet are formed in the rotary-bed pyrolysis furnace, and a radiant tube is arranged in the rotary-bed pyrolysis furnace. The system and the method have the advantages that the domestic sludge can be pre-dehydrated by the system, accordingly, the quality of pyrolysis oil and gas can be obviously improved, and the oil and gas separation cost can be reduced; equipment can stably continuously run, and accordingly the system and the method are high in heat efficiency and have obvious economic benefits.

The present invention discloses a fluid flow control system and method thereof. The fluid flow control system comprises a first flow selector used to select a flow rate of a first fluid; a first encoder configured to electronically encode the selection made via the first flow selector; a first controller configured to transmit a control signal to a first electronic flow control valve to cause the first electronic flow control valve to allow the first fluid to flow at the selected flow rate; and a first engagement device configured to engage the first flow selector with a first mechanical flow control valve when at least one of the first encoder and the first controller is in a manual mode, such that the first flow selector is operable to manually control the flow of the fluid through the first mechanical flow control valve. The fluid flow control system of the present invention is higher in usability.

According to an adjustable traction transformer for a flexible through bilateral power supply system and an equalizing current suppression method, the voltage amplitude and the voltage phase are adjustable, and the zero-load voltage amplitude and voltage amplitude difference and phase difference of open loop points of no-load buses of two adjacent traction stations tend to be zero. Three windings in the high-voltage side of the first adjustable transformer are provided with first adjustable taps, windings on the low-voltage side of the first adjustable transformer are provided with second adjustable taps, and the voltage amplitude and the voltage phase angle of the first adjustable transformer are adjusted through the first adjustable taps and the second adjustable taps; three windings in the high-voltage side of the second adjustable transformer are provided with third adjustable taps, windings on the low-voltage side of the second adjustable transformer are provided with fourth adjustable taps, and the voltage amplitude and the voltage phase angle of the second adjustable transformer are adjusted through the third adjustable taps and the fourth adjustable taps; and the voltage amplitude and phase of the traction transformer are adjusted by adjusting the first adjustable tap, the second adjustable tap, the third adjustable tap and the fourth adjustable tap.

The invention discloses electrical equipment and a power fluctuation suppression method, device and system thereof. The electrical equipment power fluctuation suppression method comprises the steps ofobtaining the current DC bus voltage and the current DC bus current at a predetermined time interval; determining the current power variation according to the current DC bus voltage and the current DC bus current; judging whether the current power variation is greater than or equal to a predetermined power variation value or not; adjusting at least one of the current DC bus voltage and the current DC bus current in the case that the current power variation is greater than or equal to the predetermined power variation value so as to enable the current power variation to be less than the predetermined power variation value. The electrical equipment power fluctuation suppression method can prevent the energy impact through a power step fluctuation suppression technology, can avoid damages brought to the system by the step impact, and also can ensure reliable and continuous operation of the system.

The invention discloses an anti-explosion walking robot for a natural gas pipeline, and belongs to the technical field of robots. The anti-explosion walking robot comprises a chassis, swing air cylinders, a transmission system, a transmission control system, wheel systems and a supporting system. The four wheel systems are installed on the swing air cylinders through the transmission system and the transmission control system. The transmission control system controls the meshing position of the transmission gear A to achieve advancing and retreating of the robot. According to the anti-explosion walking robot, the double swing air cylinders and the two-way ratchet mechanism are designed to work cooperatively, reliable and continuous operation of the anti-explosion walking robot for the natural gas pipeline can be achieved, and the anti-explosion walking robot has the advantages of being stable and reliable in the working process, easy to control and easy to operate.

The invention discloses a solar and biogas combined heat pump system which comprises a biogas supply system, a heat pump working medium circulation system, a solar energy utilization system and a tail gas heat recovery purification system, wherein the biogas supply system comprises a biogas digester, a biogas storage tank and a heater; the heater is arranged in the biogas digester; the heat pump working medium circulation system comprises a compressor, a condensing coil pipe, a throttling valve, an intermediate heat exchanger, a biogas internal combustion engine, a water tank, an air source heat exchanger, a four-way reversing valve, a first three-way valve and a second three-way valve; the compressor is driven by the biogas internal combustion engine; the solar energy utilization system comprises a solar energy collector, a water pump, a third three-way valve and a fourth three-way valve; the tail gas heat recovery purification system comprises the heater and a tail gas purification device. According to the system, cooling in summer, heating in winter and the supply of hot water are combined by utilizing a biogas driving mode, and the biogas digester is heated by tail gas produced by the combustion of biogas to promote the fermentation of microorganisms, so that the yield of the biogas is ensured, and the reliable and continuous running of the system is ensured.

The invention discloses an efficient bio-degradation filter reactor and a method for treating black odorous water bodies through the efficient bio-degradation filter reactor, and belongs to the technical field of sewage treatment. The efficient bio-degradation filter reactor comprises a reactor column, wherein a bioreaction zone and a deep filtration zone are arranged inside the reactor column from top to bottom, an isolation layer composed of a flaky material is arranged at a boundary between the bioreaction zone and the deep filtration zone, and light suspension filler with a particle size of 2-4 mm is arranged in the bioreaction zone; and large-specific-gravity filler with a particle size of 1.0-2.0 mm is arranged in the deep filtration zone, and the specific gravity of the filler in the deep filtration zone is 2.5-3 times that of the filler in the bioreaction zone. Biodegradation of organic matter, denitrification, phosphorus removal and removal of fine suspended solids are integrated into one by the reactor, and the reactor is applied to treatment of black odorous water bodies, so that the surface water bodies of a V class and an inferior V class are gradually improved into water bodies of a IV class or above, and the problem of pollution of the black odorous water bodies is solved fundamentally.

Computer kiosks include input / output devices interactive user applications for local users. The operation of the interactive user applications, input / output devices and other kiosk hardware are monitored by software modules resident thereon, with status reporting to a remote computer system. The remote computer system allows users to monitor the operation of multiple, geographically disparate computer kiosks, and to remotely input commands thereto. Analytics relating to kiosk and application usage can also be captured and reported.

The invention relates to a device for controlling a resonant bridge power converter. The signal input terminal of the device is connected with the signal output terminals of a resonance circuit and a load respectively, and the signal output terminal of the device outputs a control signal to a power switching tube; the input terminal of the power switching tube is connected with a DC (direct current) voltage source; the power switching tube, the resonance circuit and the load are connected in series; and a cycle measurement module and a timing module are arranged inside the device used for detecting the voltage and current waveform. The invention further discloses a method for controlling a resonant bridge power converter. By adding the cycle measurement module used for measuring the cycle of the change in the direction signal of the resonant current outputted by the resonance circuit and the timing module used for limiting the delay time, the invention can ensure that the limited delay time is smaller than half the oscillation period of the resonance circuit and the variable delay always ends before the direction of the resonant current is changed, thus preventing the variable delay module from repeatedly resetting.

The invention relates to a current limiting device and method, a direct-current power grid protection device and a direct-current power grid system. The current limiting device comprises an electronicswitch, a current limiting branch and a control branch, wherein the input end of the electronic switch is connected with one end, far away from a direct-current power grid, of a direct-current circuit breaker, the output end of the electronic switch is connected with a converter, the current limiting branch is connected with the electronic switch in parallel and used for limiting short-circuit current, and the control branch is connected with the electronic switch and is used for controlling the electronic switch to be turned off from on when the short-circuit fault of the direct-current power grid is detected, so that the short-circuit current flows through the current limiting branch. According to the current limiting device provided by the invention, by limiting the short-circuit current, the converter locking before the short-circuit current cutoff of the direct-current circuit breaker can be avoided, so that the reliable and continuous operation of a direct-current power grid system can be ensured.

The invention provides a vacuum distilling apparatus for easy-curing material, relating to liquid distilling equipment; the distilling apparatus is composed of an evaporator 8, a low boiling point liquid storage pot 9, a discharging pump 7, an easy-curing material liquid storage pot 10, a condenser 11 and a vacuum set 12, and a set of liquid pressurizing device 6 which is composed of a liquid pressure storage tank 4, a mass flowmeter or a weighting module 6, a three-way pressure automatic adjusting control valve 5, a liquid level controller 3, a positive displacement pump 2 and a solvent storage tank 1 is additionally arranged. The liquid isolation technology, metering feedback technology and magnetic transmission technology are adopted, the solvent for charging curing agents is used as spacer fluid of a sliding bearing of the pump, magnetic transmission driven wheel and polymer, thereby achieving the purposes of cleaning structural dead angle of the sliding bearing in an on-line way and not affecting the vacuum of the vacuum system, ensuring vacuum distilling separation of high boiling point and thermosensitive substances.

The invention discloses a device used for cleaning and rotating infiltrated workpieces and applied to an automatic infiltration line. As shown in the figure 1, the device comprises a cleaning tank 1,a rotary shifting fork 2, a rotary motor 3, a rotary guide rail disc 4, a cleaning basket 5, and a workpiece basket (not shown in the figure) 6. A robot or a manipulator (not shown in the figure) grabthe infiltrated workpiece basket 6 to place the infiltrated workpiece basket 6 in the cleaning basket 5, the workpieces requiring infiltration are contained in the workpiece basket, the rotary motor3 is started to drive the rotary shifting fork 2 to rotate, the rotary shifting fork 2 rotates to drive the cleaning basket 5 to rotate, the cleaning basket 5 rotates to drive the workpiece basket 6 to perform 360-degree rotation, a cleaning solution is contained in the cleaning tank 1, all-direction cleaning on the workpieces is completed through rotation of the workpiece basket 6, and the total-order operation of the cleaning working procedure is completed.

In various embodiments, a flow selector of a fluid flow control system may be used to select a flow rate of a fluid. When the system is in an electronic mode, an encoder may electronically encode the fluid flow selection. A controller may receive the electronically encoded flow selection and transmit a corresponding control signal to an electronic valve to allow the fluid to flow at the selected flow rate. An engagement device, such as a clutch, may disengage the flow selector from a mechanical valve when the fluid flow control system enters a manual mode. When the system is in a manual mode, the engagement device may engage the flow selector with the mechanical valve, allowing the flow selector to directly control the flow rate of the fluid through the mechanical valve. Applications to gases and anesthesia delivery are disclosed herein. Various alternative components and embodiments are described herein.

The invention provides a device used for removing slag from an edible film. The device is mainly composed of a film crusher, a vibrating feeder, a wind blower and a granulator. The device is characterized in that the vibrating feeder and the wind blower are arranged between the film crusher and the granulator. According to the invention, mixed slag can be separated by winnowing and removed before edible film debris enters the granulator; pure edible film debris is sent into the granulator for granulating; and under the premise of improved product quality and efficiency, safe, reliable and continuous operation of a complete device which produces edible whole wheat flour is ensured.

The invention discloses an impulse-type quantified oil injection method and device. A constant-pressure oil storage tank is connected with a piston feeding bin through one oil conveying pipe. A first electromagnetic valve is arranged on the one oil conveying pipe. The piston-type feeding bin is connected with a nozzle through the other oil conveying pipe. A second electromagnetic valve is arranged on the other oil conveying pipe. A piston which makes contact with the inner wall of the piston-type feeding bin in a sealed mode is arranged in an inner cavity of the piston-type feeding bin. The piston is connected with the left end of a lead screw through a rolling bearing. The right end of the lead screw stretches out of the piston-type feeding bin and is in sleeved connection with a toothed nut. The toothed nut is connected with a gear through a toothed belt. The gear is connected with an output shaft of a stepping motor. A left sensor and a right sensor which detect the left limiting position and the right limiting position of the piston are arranged on the piston-type feeding bin. The left sensor, the right sensor, the first electromagnetic valve, the second electromagnetic valve and the stepping motor are respectively connected with an embedded controller. The stepping motor drives the piston to have the accurate displacement amount inside the feeding bin, the quantified oil injection can be selectively carried out according to the actual combustion condition inside a furnace, oil combustion waste can be reduced, and the combustion efficiency inside the furnace is improved.

The invention relates to a device for determining the verticality of honeycomb ceramics. The device comprises an upper laser emitter, a lower laser emitter, a first support, a vertical reference body, a rotary sample plate, a motor, an upper laser receiver, a lower laser receiver, a second support, a signal processor and a display unit, wherein the upper laser emitter and the lower laser emitter are connected with the first support in a sliding mode; the upper laser receiver and the lower laser receiver are connected with the second support in a sliding mode; the rotary sample plate is horizontally positioned between the lower laser emitter and the lower laser receiver; the motor drives the rotary sample plate to rotate through a transmission mechanism; the vertical reference body is vertical to the rotary sample plate and is positioned between the lower laser emitter and the lower laser receiver; and signal output ends of the upper laser receiver and the lower laser receiver are connected with a signal input end of the signal processor, and a signal output end of the signal processor is connected with a signal input end of the display unit. The device can be used for determining the verticality of the honeycomb ceramics with round, elliptic and rectangular cross sections, and the testing efficiency is quite high.

The invention provides a slurry transmitting pump under vertical magnetic driving multiple sealing liquid. An upper separating sleeve, a guiding body shaft sleeve, a lower separating sleeve and an impeller are sequentially arranged from top to bottom on an axial guiding body segment of a pump shaft, blind holes are formed in the lower end surface of the upper separating sleeve and the upper end surface of the lower separating sleeve, the guiding body shaft sleeve is arranged inside the blind holes of the upper separating sleeve and the lower separating sleeve, a sliding bearing is arranged between an inner hole of the axial guiding body and the guiding body shaft sleeve, a sliding bearing pressing cover is arranged under the sliding bearing, the sliding bearing pressing cover and the end surface of the inner hole of the axial guiding body are connected, a leakage detecting device is arranged on the right side of a leakage detecting pipe, and a movable ring adjusting sleeve, a rotating ring, an axial sealing wheel and two round nuts C are sequentially arranged from top to bottom at the bottom part of the leakage detecting pipe of the pump shaft. The slurry transmitting pump is reasonable in structure, the vibration and the noise of the pump during operation are lowered, the stability and the reliability of the pump during operation are improved, the installing and the maintaining are convenient, the temperature of medium transmitted by the pump is improved, the service life of the bearing for the pump is prolonged, and the pump is 100% sealed without leakage.

A biodegradation filter reactor, which comprises: a reactor cylinder (1). The reactor cylinder (1) is provided therein in a downward sequence with a biological reaction region and a deep filtration region. A separation layer consisting of a sheet-shaped material is provided at the junction between the biological reaction region and the deep filtration region. A lightweight suspended filter of which the particle size is 4-8 mm is provided in the biological reaction region. A filler of a great specific gravity of which the particle size is 1.0-2.0 mm is provided in the deep filtration region. The specific gravity of the deep filtration region filler is 2.5-3 times of the specific gravity of the biological reaction region. Also disclosed is a method employing the filtration reactor for treating polluted water.

The invention provides a multistage multi-pump control method applied to a photovoltaic irrigation station. The multistage multi-pump control method applied to the photovoltaic irrigation station comprises the following steps: voltage values of photovoltaic cells are acquired; when the voltage values of the photovoltaic cells reach the start voltage, effectiveness of start signals is judged; afterthe start signals are judged to be effective, a self-adaption searching algorithm is adopted to calculate searching voltage with maximum power; searching control of MPPT maximum power is performed through the searching voltage, and an output frequency is calculated; tracking control and frequency outputting are performed through the output frequency; when solar energy exists, a first pump of first-stage pumps is controlled to start firstly; when the water pressure of water pipes of second-stage pumps is built, a first pump of the second-stage pumps is started; when energy is enough, a secondpump of the first-stage pumps is started; when the water pressure of the water pipes of the second-stage pumps is built again, the second pump of the second-stage pumps is started, and all water pumpsare started in sequence; and when the energy is insufficient, the second-stage pumps are stopped, and then, the first-stage pumps are stopped until all the pumps are stopped. The multistage multi-pump control method applied to the photovoltaic irrigation station is stable and reliable in system and high in utilization rate of the solar energy.

The invention discloses a garbage derived fuel (RDF) pyrolysis gasification system, which belongs to the field of urban domestic garbage treatment. It mainly includes a feeding device, a waste heat boiler and a cold slag system; it is characterized in that it also includes a pyrolysis gasifier and a high-temperature separator, and a fluidized bed is arranged at the bottom of the pyrolysis gasifier; The pyrolysis gasifier is connected to the pyrolysis gasifier, the pyrolysis gasifier is connected to the waste heat boiler through a high temperature separator, and the cold slag system is connected to the pyrolysis gasifier and the slag discharge device of the waste heat boiler respectively. The invention has simple structure and reliable operation, and realizes resource utilization, reduction and harmless treatment of municipal domestic garbage. The invention is mainly used for the treatment of municipal solid waste.

The invention discloses an anti-explosion walking robot for a natural gas pipeline, and belongs to the technical field of robots. The anti-explosion walking robot comprises a chassis, swing air cylinders, a transmission system, a transmission control system, wheel systems and a supporting system. The four wheel systems are installed on the swing air cylinders through the transmission system and the transmission control system. The transmission control system controls the meshing position of the transmission gear A to achieve advancing and retreating of the robot. According to the anti-explosion walking robot, the double swing air cylinders and the two-way ratchet mechanism are designed to work cooperatively, reliable and continuous operation of the anti-explosion walking robot for the natural gas pipeline can be achieved, and the anti-explosion walking robot has the advantages of being stable and reliable in the working process, easy to control and easy to operate.

The invention relates to a single-bed two-stage furfural, paper pulp and lignin polygeneration system and method capable of continuous operation. The method comprises the steps that raw materials, vapor, a catalyst and a solvent are mixed and boiled in a pressurized reaction kettle, through improvement on the structure of a reactor and parameter optimization, furfural, paper pulp and lignin are prepared at the same time, and continuous operation is achieved; duo to use of a cyclone separator in the pressurized reaction kettle, internal circulation of a mixing boiling section and a stripping section, a plurality of vapor distributors and a plurality of system circulations, the mixing effect of the reaction kettle is improved, the heat and mass transfer rate and the reaction rate are improved, material entrainment at a gas outlet of the stripping section is reduced, and the furfural yield and the technical and economical efficiencies of the system are improved; through sufficient mixingof gas, liquid and solid in the reaction kettle and quick separation of the gas from the solid, improvement of the yield of the paper pulp and improvement of the yield of the lignin are facilitated, and accordingly, optimized combination of the technical and economical efficiencies of the system is achieved.

The invention provides a slurry transmitting pump under vertical magnetic driving multiple sealing liquid. An upper separating sleeve, a guiding body shaft sleeve, a lower separating sleeve and an impeller are sequentially arranged from top to bottom on an axial guiding body segment of a pump shaft, blind holes are formed in the lower end surface of the upper separating sleeve and the upper end surface of the lower separating sleeve, the guiding body shaft sleeve is arranged inside the blind holes of the upper separating sleeve and the lower separating sleeve, a sliding bearing is arranged between an inner hole of the axial guiding body and the guiding body shaft sleeve, a sliding bearing pressing cover is arranged under the sliding bearing, the sliding bearing pressing cover and the end surface of the inner hole of the axial guiding body are connected, a leakage detecting device is arranged on the right side of a leakage detecting pipe, and a movable ring adjusting sleeve, a rotating ring, an axial sealing wheel and two round nuts C are sequentially arranged from top to bottom at the bottom part of the leakage detecting pipe of the pump shaft. The slurry transmitting pump is reasonable in structure, the vibration and the noise of the pump during operation are lowered, the stability and the reliability of the pump during operation are improved, the installing and the maintaining are convenient, the temperature of medium transmitted by the pump is improved, the service life of the bearing for the pump is prolonged, and the pump is 100% sealed without leakage.

The invention discloses a soapstock acidification wastewater treatment process. The process comprises the steps of dosing for removing hard flocculent precipitation, heating, centrifuging and removing floc, treating with a ceramic membrane, and evaporating at normal pressure for multi-phase separation. The method disclosed by the invention has the beneficial effects that the influence of grease, salt and the like in the soapstock acidification wastewater on a biochemical treatment process is avoided by adopting a multi-phase separation process of dosing for removing hard flocculent precipitation, a pre-heating centrifugal system, ceramic membrane filtration and normal-pressure evaporation; after flocculent precipitation and preheating centrifugation, suspended carclazyte (rich in a small amount of grease) is reduced to the maximum extent by adopting a ceramic membrane process, salt and glycerol in the wastewater can be effectively separated by adopting a normal-pressure evaporation multiphase separation process, and the whole process can be safely, stably and reliably operated; and industrial water supply is saved, waste resource utilization can be achieved through the whole scheme, and the environment-friendly and zero-emission requirements are met.