291 results about "Diesel engine generator" patented technology

The invention discloses an intelligent fruit and vegetable controlled atmosphere carrier vehicle, which comprises a headstock, a chassis, an airtight box and a human-computer interaction interface, and also comprises a control system, an air exchange device, a signal acquisition system, a ventilation system, a liquid nitrogen controlled atmosphere system, a humidifying system, a solar charging system, a temperature control unit, a diesel generator and a dampproof device, wherein the chassis is respectively connected with the headstock and the airtight box; the control system is respectively connected with the human-computer interaction interface, the air exchange device, the signal acquisition system, the ventilation system, the liquid nitrogen controlled atmosphere system, a humidifying system, the temperature control unit and the diesel generator; and the diesel generator is respectively connected with the control system, the ventilation system, the humidifying system, and the temperature control unit. The invention also discloses a method for implementing the carrier vehicle. The intelligent fruit and vegetable controlled atmosphere carrier vehicle and the method have the advantages of making the fruit and vegetable fresh-keeping environment more uniform, improving the quality of the fruit and vegetables, prolonging the fruit and vegetable fresh-keeping period and the like.

The invention provides an electric vehicle charging station system based on an AC/DC double bus. The electric vehicle charging station system based on the AC/DC double bus adopts a system framework of the AC/DC double bus, connection of the bus with multiple subsystems, modularization in each subsystem and dual data interaction channels, and has the complete function of the electric vehicle charging station system. The electric vehicle charging station system based on the AC/DC double bus takes a bidirectional converter as the core, the AC side of the bidirectional converter is connected with the AC bus, the DC side of the bidirectional converter is connected with the DC bus, and energy flows bi-directionally between the DC and AC buses through the bidirectional converter. The DC bus is connected with an energy storing subsystem, a photovoltaic subsystem, a wind power subsystem and a plurality of DC charger subsystems. The AC bus is connected with an electric supply access subsystem, an active power filter APF access subsystem, a diesel engine generator access subsystem and a plurality of AC charger subsystems. The quantities and the capacities of the AC charger subsystems and the DC charger subsystems can be flexibly selected according to actual needs. The electric vehicle charging station system based on the AC/DC double bus is flexible in configuration and high in power supply reliability, enables the electric vehicle charging station load to combine with new energy power generation, and realizes the sustainable and stable operation of the system.

An enhanced-air conditioning system for tropical and sub-tropical island sea coast environments having access to deep ocean sea water. Sea water from depths of at least about 1200 feet, at a temperature of 47° F. or lower, is utilized as a source for circulating chilled water loops providing district wide air conditioning, in some instances with assistance from electrically driven chillers. The sea water is then further used to condense working fluid in a low temperature Organic Rankine Cycle or Kalina Cycle turbine generator, the heat source for which is the cooling jacket of a diesel engine generator, and also to condense working fluid in a steam driven Rankine Cycle turbine generator, the heat source for which is exhaust heat from the diesel engine. Alternate heat sources, if available, can be utilized. Additional electrical generation from these sources far exceeds the costs of pumping the sea water.

A system and method is disclosed for creating and/or maintaining an electrical load on a diesel engine generator for use on a marine vessel in order to avoid the harmful effects of no-load or low-load operation of the diesel engine. The parasitic load bank system 10 utilizes the heat transfer fluid 23 contained in the closed circulation loop 28 of a chille7d-fluid air conditioning system 14 for creating and/or maintaining the electrical load on the diesel engine generator 12 by utilizing a load bank controller 44 for diverting a portion 23c of the heat transfer fluid 23a being supplied to the vessel's air handlers 42 into heat exchange relationship with the heat transfer fluid 20b discharged from the air conditioning system's source of heat transfer 18 such that the heat exchanged heat transfer fluid 23f activates the source of heat transfer 18, which may be a chiller, reverse-cycle chiller or heat pump, to create an electrical power demand on the diesel engine generator 12.

The renewable energy station comprising: a housing containing a main central controller and an electrical power distribution center connected to this main central controller. The station comprises wind turbines solar panels, batteries, and a gas/diesel engine-generator. Loads are connected to the electrical power distribution center. The wind turbines and the solar panels are grouped into a plurality of generating cells wherein each generating cell comprises at least one wind turbine and at least one solar panel. The main central controller and the electrical distribution center jointly have switching and control equipment therein for selectively connecting and disconnecting each of the loads to and from the electrical power distribution center. Reactive-type loads are given priority over resistive-type loads. The heat from the gas/diesel engine-generator is used to melt snow and ice from the solar panels. Tandem connection of two stations is done via an inlet receptacle on each station.

The invention discloses a flying saucer and two smoke- and fire-free engines. The flying saucer is composed of a cabin and a disk which rotates round the cabin. The disk includes a disk-shaped wing and a rotary engine. The cabin includes a driving cabin, a passenger cabin and a device cabin. The rotary engine sucks air which is mixed with water, and then the mixture is jetted out horizontally through jet tubes installed on the edge of the disk according to the sprayer principle, so that a generated reactive force enables the disk to rotate at a high speed, thereby generating an upward raising force on the disk. Four fixing wings are installed outside the device cabin to eliminate reverse rotation of the cabin. A vector engine and a diesel power generating set are installed in the device cabin under the disk. The vector engine sucks large amount of air through an air inlet duct in the passenger cabin to form vacuum above the passenger cabin, which enables air pressure difference between an upper surface and a lower surface of the disk to be increased, thereby generating a huge raising force. The sucked air is compressed to form high-pressure gas which is discharged into vector jet tubes and is jetted out, wherein the directions and the angles of the vector jet tubes are adjustable to generate pushing forces in different directions, thereby achieving maneuvering flight of the flying saucer.

The invention relates to a method for designing a frequency controller of an independent micro-grid. The method comprises the following steps of: establishing a mathematical model of a power generation system of the independent micro-grid, wherein the independent micro-grid comprises a photovoltaic power generation system and a diesel engine system hybrid power supply system; establishing a photovoltaic system mathematical model; establishing a diesel engine mathematical model comprising load disturbance; and designing an interference observer and a sliding mode controller. The output power of a diesel engine generator is regulated to reduce micro-grid frequency deviation caused by a load change and the power fluctuation of a photovoltaic system. By a designed sliding mode load frequency compensation controller, the micro-grid frequency deviation can be reduced, the maximal power output of the photovoltaic system is ensured, and the utilization rates of renewable energy sources are increased.

The invention provides a new energy hybrid power generation technology formed by mutually complementing a solar power generation technology with a diesel power generation technology, and composed of a storage battery (plumbic acid or lithium ferrite) energy storage technology. The new energy hybrid power generation technology provides a new energy solution for remote areas, islands and the like, and is an important alternative scheme for the existing diesel power generation scheme in some districts. According to the new energy hybrid power generation technology, solar energy is used for supplying power and charging a storage battery in case of sufficient solar energy; the storage battery provides a discharge support load in the case that the solar energy cannot be met; the capacity of the storage battery is detected, and a diesel power generator is automatically started up to supply power in the case that the capacity of the storage battery is insufficient; the diesel power generator is automatically turned off when it is detected that the capacity of the storage battery is recovered to a certain extent. The system overcomes the problems of a high use cost, a high noise pollution and the like of a pure diesel power generator, and also avoids the problems of a too high initial investment and a low system reliability in extreme weather of a pure solar power generator. The power supply system generates power mainly by virtue of the solar energy, uses the diesel for standby, and is capable of intelligently control, contravariant and management to increase energy conversion and use efficiency; the overall system provided by the invention provides a cheap and reliable energy solution.

The invention discloses a power-generating and energy-storing system based on waste heat of a diesel generating set of an astronomical observation station in the South Pole. The diesel generating set is provided with an air exhaustion pipeline and an oil storage tank, wherein an air heat exchanger is arranged outside the air exhaustion pipeline; an evaporating-condensing two-phase flow self-circulating heat exchange device is further connected between the air exhaustion pipeline and the oil storage tank; a plurality of power-generating modules which are in series connected together are arranged between the air exhaustion pipeline and the air heat exchanger; power generating modules are connected with a storage battery by a controller; each of the power generating modules comprises a hot end, a cold end and a power generator made of a temperature difference power-generating material, wherein the cold end contacts with the air heat exchanger, the hot end contacts with the air exhaustion pipeline; an evaporating section of the evaporating-condensing two-phase flow self-circulating heat exchange device is arranged in the air exhaustion pipeline; the condensation section of the evaporating-condensing two-phase flow self-circulating heat exchange device is arranged in the oil storage tank. The power-generating and energy-storing system disclosed by the invention solves the problem that heat loss is caused by directly exhausting the tail gas of the diesel engine generator set into the atmosphere, and improves energy utilization rate.

The invention discloses a post-disaster recovery control method for an elastic power distribution network based on an electricity-gas integrated energy system. The method comprises the following steps: carrying out power flow modeling on the network according to a fault part; obtaining an optimal coordination scheme for three post-disaster recovery measure models of network reconstruction, a diesel generator and a gas turbine by taking the lowest post-disaster recovery strategy cost of all recovery load loss quantities as a target; and judging whether the formed microgrid meets a reliability operation condition or not, and if not, moving the MESS according to the optimal path scheme until the formed microgrid meets the reliability operation condition. The invention discloses a post-disaster recovery control method for an elastic power distribution network based on an electricity-gas integrated energy system. Through three optimization strategies of network reconstruction and energy supply of a diesel generator or an MESS and a natural gas network through a gas turbine, the minimum cost of a post-disaster recovery strategy is used as an optimization target, the elasticity of a powerdistribution network is improved, the rescue load loss amount is used as a load constraint condition, and it is guaranteed that the power supply load is rapidly and effectively recovered to the maximum extent.

The invention discloses a fine water mist spray head, which is sealed at normal times, is started for spraying when a water feeding pressure reaches a preset value, is used for decomposing water current into fine and dense water drops of smaller than 200 mum for spraying and is shut down and sealed automatically when the feeding water pressure of the spray head falls. The spray head consists of a plurality of size nozzles and a middle nozzle; and a spring pre-fastening rubber ball body is arranged inside the spray head for sealing, so that the spray head is kept in a shut-down state. An anti-dripping fine water mist spray head belongs to the field of fire control. Damages of lightning flash, electric shock and the like caused by flowing liner water current discharged at the start of spraying and at the end of spraying existing in the conventional spray head are eliminated. The anti-dripping fine water mist spray head is provided with a pre-tightening spring, a rubber ball body, a dust-proof cover and a convex ball filter screen. The rubber ball body is closed by pre-tightening, water is not discharged under low water pressures and at the start/end stage of spraying, water discharge is started only when a preset water pressure is reached, and water is rotationally atomized and sprayed out through an atomizing core and the nozzle. The spray head has wide application prospects in the fields of electric power, petrochemical engineering, metallurgy, transportation and the like, and has unique safety on the protection of high-voltage power distribution equipment, diesel engine generator rooms, power transformers and converters.

The invention discloses a mobile multi-energy microgrid control method and system. The method comprises the following steps of firstly, selecting a storage battery or a diesel engine generator set tobe independently started as a main power supply according to the state of charge (SOC) of the storage battery; after the micro-grid system is started, starting the fuel cell generator set to work, ifthe fuel cell generator set is stable, taking the fuel cell generator set as the main power supply of the micro-grid system, and at the second stage, enabling the photovoltaic cell generator set, thefuel cell generator set, the storage battery and the mutual combined power generation of the photovoltaic cell generator set, the fuel cell generator set and the storage battery to meet the load demand power Pload; and if the fuel cell generator set is not stable, enabling the photovoltaic cell generator set, the storage battery, the diesel engine generator set and the mutual combined power generation of the photovoltaic cell generator set, the storage battery, the diesel engine generator set to meet the load demand power Pload. According to the invention, the advantage of combination of renewable energy and the microgrid system can be realized, and the energy utilization of the movable microgrid is realized.

The present invention is a containment tank or a generator set including an outer tank and an inner flexible tank that offers a storage area for diesel fuel for a diesel engine powered generator set. So that the generator set diesel engine have ready source of clean diesel fuel the inner flexible tank provides a corrosion-free storage area that will not corrode or contaminate the diesel fuel. The outer tank is designed to provide a structure that not only protects the inner tank from damage, but acts as a support structure for the diesel engine generator set and other components (enclosure, switchgear, etc.) that are needed for the generator sets protection from wind, rain or snow or to act as control devices for diesel engine generator set. Also, since the design of the inner tank is flexible, it can be replaced easily through a manway formed on the outer tank without having to disconnect or disassemble the generator set.

The invention aims to provide a diesel engine generator with a spring support with the variable height and a vibration reduction control method of the diesel engine generator. The support can be automatically adjusted along with the working condition of the diesel engine generator, and therefore the vibration reduction effect of the diesel engine generator is improved. The diesel engine generator comprises the support and a diesel engine generator body, and is characterized in that the support comprises a base plate, a supporting plate, a frame, springs, a height adjusting block, a stepping motor, a screw rod and a nut, wherein the nut is matched with the screw rod. The base plate is movably installed on the lower portion of the frame, and the springs, the supporting plate and the diesel engine generator body are arranged on the base plate in a supported mode in sequence from bottom to top. The height adjusting block and the stepping motor are arranged below the base plate, the top surface of the height adjusting block is an inclined surface, and the bottom surface of the base plate is a guide surface which is matched with the inclined surface. The nut is fixed to the side of the height adjusting block, and a motor shaft of the stepping motor is connected with the screw rod. The stepping motor controls movement of the height adjusting block according to the rotating speed of a crankshaft of the diesel engine generator body so as to change the height of the base plate.

The invention discloses a shore power access system and an access method based on a ship's DC network, which solves the problem that when the ship is docked on the shore, the diesel generator set on the ship stops working, and the existing diesel engine is easily damaged due to cold start. question. The ship daily load inverter (16) and the ship daily load transformer (17) are connected to the common DC bus (9), and the ship daily load transformer (17) is connected to the output end of the ship daily load (4); the second rectifier inverter (8) is connected to the common DC bus (9), the input end of the second rectifier inverter (8) is connected to the output end of the dual control switch (7), and the dual control switch ( One input end of 7) is connected to the output end of the second diesel generator set (3), and the other input end of the dual control switch (7) is connected to the shore power transformer (6) and shore power AC power supply (5) . Provide necessary conditions for the hot start of marine diesel generator sets.

The invention discloses a smoke plume particulate filter device of a diesel generator set and a method. The device comprises a first electronic control stop valve, a second electronic control stop valve, a metal fiber felt particulate filter, an electric self-heating regeneration device, a controller and a smoke mixing and cooling passageway. A diesel engine smoke discharge pipe is connected with a connection pipe divided into two routes. One route of the connection pipe leads to the input end of the metal fiber felt particulate filter through the first electronic control stop valve. The output end of the metal fiber felt particulate filter perpendicularly communicates with the smoke mixing and cooling passageway through a pipeline. The other route of the connection pipe perpendicularly communicates with the smoke mixing and cooling passageway through the second electronic control stop valve. In the method, the first step includes two different work modes, namely, the mode of discharging tail gas after the tail gas passes through filter particulates of the metal fiber felt particulate filter and the mode of directly discharging the tail gas, and in the second step, combustion soot particles are started through the electric self-heating regeneration device. The device and the method have the beneficial effects that the structure is simple, the size is small, firmness and durability are achieved, the device and the method are suitable for being used for field armaments, and maintenance is easy.

The invention discloses an isolated voltage compensation circuit, comprising a primary side circuit and a secondary side circuit, wherein the primary side circuit comprises four power switching tubes with antiparallel diodes and two clamping capacitors only; a secondary output voltage is directly coupled to enter into a power grid by an isolation transformer so as to compensate a power grid voltage; in the isolated voltage compensation circuit, combination of every two power switching tubes can be realized by an IGBT (insulated gate bipolar transistor) half bridge module; the two clamping capacitors are utilized to clamp voltage spikes on the power switching tubes; and a built-in LC filter is used to reduce the high-frequency ripple component of the transformer. For the isolated voltage compensation circuit, a traditional PWM (pulse width modulation) method is applied, parts of power is utilized to convert, and a high-capacity DC (direct current) energy-storing link does not exist, thus the isolated voltage compensation circuit can compensate a harmonic voltage output by a diesel engine generator and solves the problems of voltage sag, voltage surge, continuous low voltage and other electric energy quality problems.

The invention discloses a diesel generator oil tube fixing and supporting mechanism comprising a stretching cylinder, an installation box, a power box, an angle adjusting base and an installation base. The angle adjusting base is installed at the top of the installation base, the power box is installed at the top of the angle adjusting base, the installation box is installed at the top of the power box, a supporting plate is installed at the top of the installation box, and the stretching cylinder is installed at the top of the supporting plate; lifting ports are formed in two sides of the installation box, a clamp cylinder is mounted on the lifting port on one side of the installation box, and a mechanical clamp is mounted on the lifting port on the other side of the installation box; a driving motor is arranged on one side surface of the power box; the fixing and supporting mechanism is used for automatically clamping and fixing the oil tube of a diesel generator through the cooperation between the clamp cylinder and the mechanical clamp, and has the advantages of simple operation, convenient use and high working efficiency; and the mechanism is capable of adjusting the orientation, height and angle of the mechanical clamp and is suitable for fixing and supporting of the oil tube of the diesel generator at different installation positions.

A crane with alternating current frequency conversion tyres relates a crane. The purpose of the present invention is to provide a crane with the alternating current frequency conversion tyres, which saves energy, is environmental protective and has low price. The technical proposal of the present invention is that the crane with the alternating current frequency conversion tyres comprises a diesel engine generator group with a generator of an alternating current generator, a hoisting motor, a gyroidal motor, a variable amplitude motor and two sets of transducers which are respectively connected with the power supply of the diesel engine generator group or the power supply of a power network. The power supply of a programmable controller PLC is provided with AC220V which is produced by the diesel engine generator group or a three-phase power supply through an isolation transformer. A traveling motor and the hoisting motor are respectively connected with the output end of one transducer. The variable amplitude motor is connected with the output end of the other transducer. A left control platform and a right control platform are respectively connected with the input module of the programmable controller, the output module of which is respectively connected with the timing ports of the two sets of the transducers. The present invention is used for hoisting at port.

The invention relates to an urban air purifying vehicle capable of being normally used in cold winter. A power cabin, a liquid storage box and long-range mist-spraying dust-removal air purifying equipment are mounted on an automobile chassis; an electrical control box, a high-pressure liquid pump and a hydraulic station are mounted at the lower part of the automobile chassis; roller shutter doors are respectively arranged on the front surface, the left surface and the right surface of the power cabin, the roof of the power cabin is an operable hard roof, and dustproof heat dissipating holes are formed in the rear surface near the top of the power cabin; a plurality of stainless steel heating pipes are longitudinally arranged in the liquid storage box, the front parts of the stainless steel heating pipes are connected with automobile exhaust pipes, the rear parts of the stainless steel heating pipes go through the lower part of the liquid storage box, two-position three-way valves are arranged at the connecting positions of the stainless steel heating pipes and the automobile exhaust pipes, a high-grade antiseptic antirust coating is coated on the inner part of a box body, and the liquid storage box is provided with a liquidometer and a thermometer; the circuit of the electrical control box is connected with the circuit of a diesel generator group and the circuit of the long-range mist-spraying dust-removal air purifying equipment respectively; the high-pressure liquid pump is a stainless steel liquid pump, a liquid inlet of the high-pressure liquid pump is connected with the liquid storage box through a pipeline, and a liquid outlet of the high-pressure liquid pump is connected with a water spraying ring and an atomizing spray head through pipelines.

The invention discloses a rapid large aircraft take-off and landing platform based on a truck, which is structurally characterized by comprising a large truck, multiple sets of switch hydraulic oil cylinders, multiple sets of supporting hydraulic oil cylinders, a large diesel generator and a console. After the large truck carriage is refitted, the upper carriage can be opened outwards in the middle along with the carriages on the two sides in a rotating mode. The carriages on the two sides slowly rotate downwards to be parallel to the bottom surfaces of the carriages under the action of multiple sets of switch hydraulic oil cylinders; the upper carriage rotates to be parallel to the bottom carriage under the action of gravity and the carriage limiting baffles on the two sides; after all the carriages are unfolded, the supporting hydraulic oil cylinders hung on the carriages on the two sides can be opened to support the ground; at the moment, the rapid large aircraft take-off and landing platform based on the truck is successfully unfolded, the aircraft can take off or land, the platform can be applied to complex zones such as the field and uneven ground where the large aircraft cannot take off or land, the aircraft can be ensured to complete tasks in time and return to flight safely, the take-off and landing problems of the large aircraft are solved, and the long-distance transportation problem of the large aircraft is also solved.

The invention discloses a damping device of a diesel engine generator set. The damping device comprises a bottom plate and a mounting plate. A rubber buffer pad is attached to the lower end of the bottom plate. A supporting plate is attached to the end, away from the bottom plate, of the rubber buffer pad. Multiple first bolts are rotationally connected to the end, close to the rubber buffer pad,of the supporting plate. The first bolts penetrate the rubber buffer pad and are mounted on the mounting plate through first nuts. Multiple clamp teeth are fixedly connected to the end, close to the first bolts, of the supporting plate. Mounting blocks are mounted on the bottom plate. A second bolt is rotationally connected to the end, away from the bottom plate, of each mounting block. The damping device is stable in structure, simple in operation, scientific and reasonable in design, low in manufacturing cost and good in anti-vibration performance, a damping material can be tightened conveniently, the situation that the damping material suffers from shock excitation separation for a long time to generate noise is avoided, the elastic force of springs can be adjusted, and therefore the spring can be fast adjusted after suffering from fatigue wear, and excessive shaking of the generator set is avoided.

The invention provides an energy control system and method for a hybrid power supply system of a communication base station. The energy control system comprises a power grid, a diesel generator, a photovoltaic system, a lithium battery, a lead-acid battery and a main controller. The power grid and the diesel generator are connected with an AC/DC rectifier through an automatic change-over switch, and the AC/DC rectifier is connected to a system DC busbar. The diesel generator is connected with a system direct-current busbar through the DC/DC converter; the photovoltaic system is connected withthe system direct-current busbar through a MPPT controller; the lithium battery and the lead-acid battery are connected with the system direct-current busbar through a direct-current power flow distributor; the system direct-current busbar is connected with a load and used for supplying power to the load; and the main controller is used for realizing the overall operation control of the system andadjusting the output power of the lithium battery, the lead-acid battery and the diesel generator. According to the invention, the operation of the diesel engine can be reduced, the lithium battery is efficiently used, the residual electric quantity of the lead-acid battery is extracted, and power supply reliability is improved.