207 results about "Dual cycle" patented technology

The invention belongs to protective fishery field, which in detail relates to two-cycle water treating system for industrialized fish culturing, with main characteristics being: internal recycle pool structure of various shape taking square outside and round inside as representation, cultivating fish in circular pool, the quadrangle outside pool is biological filter; water and pollution discharging pipe are equipped in bottom of pool; the mating outside circular system comprises drainage ditch, out biological filter and artificial wet land, feed ditch, pollution collecting tank; special air raising pump of U shape, high effective aeration, water raising cycle; the artificial wet land and out biological filter are combined together, depositing, filtering, adsorption, bacteria degradation, adsorption by aquatic plant and animal and cleaning water body high effectively; constructing open water inlet and outlet pitch which also used as biological filter by using fish pond to realize omni-bearing restore of cultivating wastewater. The invention is characterized by less equipment investment, low energy consumption, safe and reliable operation, convenient management and maintenance, outstanding ecological, economical and social benefit, low production cost and increased quantity and quality.

A high efficiency combined cycle internal combustion and steam engine includes a cylinder having a piston mounted for reciprocation therein with an internal combustion chamber outward of the piston, a fixed cylinder cap sealingly and slideably mounted within the piston and a steam expansion/recompression chamber inside the piston adjacent the cylinder cap. The cylinder cap can be unheated or heated externally to reduce condensation of steam entering the steam chamber from a steam generator fired by waste combustion heat. Steam remaining in the cylinder when a steam exhaust valve closes at the top center position is recompressed during an inward stroke of the piston up to admission pressure prior to admitting the next charge of steam. One valve or a pair of retractable steam inlet valves connected in series within the cylinder cap act in cooperation with steam recompression and clearance volume to achieve an effective zero steam chamber clearance and a gain in mean Rankine cycle temperature to maximize efficiency. The amount of steam admitted each outward stroke is continuously regulated, e.g. by shifting the phase of one steam admission valve of a pair to vary their overlap for determining the steam mass admitted during each cycle to reduce specific fuel consumption. Other valves balance steam displacement with the steam generator output to use steam more efficiently. Engine coolant can be evaporated in a combustion chamber cooling jacket to form steam which is then superheated in a combustion exhaust manifold.

The invention relates to a dry inner-outer dual cycle fluidized bed desulphurization device and a method. The device comprises a flue gas intake mounted at the bottom of the inner cycle fluidized bed reaction tower, a desulfurizer nozzle, a diector nozzle and an air nozzle mounted at the bottom of inner wall; a cyclone is mounted between passing conduit for connecting the flue gas outlet and the dust collector conduit, the solid outlet of the cyclone is connect to a separating tank, of which the outlet on the top is connected to the inlet of the dust collector via the transport conduit, the cleanout door at the bottom of the dust collector is connected to the ash cellar, and the clear gas outlet of the dust collector is connected to the chimney. The flue gas with SO2 enter from the bottom of the thionizer, at the same time, powdery desulfurizer, air and water are sprayed form the bottom of the thionizer respectively, and they moves upwards together in the thionizer, when the SO2 reacts with desulfurizer to deprive the SO2 in the flue gas.

The invention discloses a crossed combinational dual-period grating for quantum well infrared detector. By arranging two sizes of gates across, the invention responses to two wave bands and acquires the information of the two wave bands. The cross array makes a very good response uniformity of the new-type gates on the whole surface, and the two types of gates are distributed as the Chinese character 'pin', which makes the photolithography linewidth up to the maximum and thereby enhances the precision of photolithography patterns. The square gate hole is used to prevent astigmatism; the optimized parameter design enhances the coupling efficiency of the gates. The invention is applied to dual-color quantum well infrared detectors, is able to acquire the objective information more accurately in two wave bands simultaneously, more effectively inhibits the complicate background, and then enhances the detecting effect of objectives. The invention has the advantages of simple fabrication, low cost, and easy realization of mass and serial production.

The invention relates to a supercritical organic Rankine dual cycle waste heat recycling system and belongs to the field a common heat exchange. The system comprises a medium temperature overheater, a medium temperature expander, a medium temperature condenser, a medium temperature compression pump, a medium temperature steam generator, a medium temperature expander crankshaft, a medium temperature output power device, a low temperature overheater, a low temperature expander, a low temperature condenser, a low temperature compression pump, a low temperature steam generator, a low temperature expander crankshaft, a low temperature output power device, an exhaust shunt valve, a low temperature shunt valve and so on. The connection of the elements is as follows: the medium temperature steam generator, the medium temperature overheater, the medium temperature expander, the medium temperature condenser and the medium temperature compression pump are connected in turn to form a loop to form a medium Rankine cycle; and the low temperature overheater, the low temperature expander, the low temperature condenser, the low temperature compression pump, the low temperature shunt valve and the low temperature steam generator are connected in turn to form a loop to form a low temperature Rankine cycle. The system is suitable to be used on road automotive engines which are variable in operating conditions and diversified in energy states for recycling waste heat.

The solar water heater is composed of solar energy heat collection device, multifunctional water storage installation, water circulated connecting insulated pipefittings, thermosiphon convective dual cycle plant, unit for feeding and catching water, and air inlet and exhaust unit. Thermosiphon convective dual cycle plant is composed of feed liquid pipe and drainpipe, liquid return pipe, liquid supply pipe, float type discharge pipe, and supply pipe of bottom liquid on throttle three way valve. Through pipes, thermosiphon convective dual cycle plant is installed between multifunctional water storage and solar energy heat collection device. Attaching unit for increasing function of multifunctional thermosiphon convective dual cycle solar water heater is installed on water circulated connecting insulated pipefitting.

According to a quasi-cyclic low density parity check code basis matrix construction method, node distribution acquired through optimization of a density evolution algorithm is used, then a stretch factor Z is set, the circle length of the LDPC code check matrix and external message scale of the circle are jointed optimized, finally, a QC-LDPC code basis matrix with excellent performances is generated through extension. Each element in the basis matrix is corresponding to one Z*Z dimensional all-zero matrix, a unit matrix or a cyclic shift matrix of the unit matrix. But in construction of high code rate QC-LDPC code, the contradiction of limitation of matrix row number and maximum line number usually occurs, namely, the maximum line number is greater than the row number. To solve the problem, the invention provides construction of the basis matrix through a method increasing line number through superposition of a plurality of cyclic shift matrixes, namely, multiple cyclic shift matrixes are embedded in a single block matrix. The "superposition" operation is binary addition, the constructed basis matrix not only guarantees the cycle performance of the QC-LDPC code, but also meets the requirement of optimization of codon performance through increase of minimum code distance.

The invention relates to the field of wet flue gas desulfurization, especially to a flue gas thionizer of ammonia-ammiaonia sulfate method. The thionizer is divided into three segments, wherein the lower segment of the thionizer is a circulation fluid-absorbing tank, the middle segment of the thionizer is a concentration cooling segment, and the upper segment is an absorbing segment. The concentration cooling segment is separated to the absorbing segment and the circulation fluid-absorbing tank by tower-separating plate at the two end planes upper and lower. The dual cycle three-segment thionizer of ammonia-ammiaonia sulfate method of the invention resolves the design disadvantage of general single-tower and multi-tower. The byproduct that is ammiaonia sulfate is concentrated by high-temperature flue gas to reduce the temperature to a temperature propitious to absorb. The dual cycle design of the thionizer makes the cycle absorbing liquid to be not contacted directly with the high-temperature flue gas to control the cycle absorbing liquid at a low concentration, and is beneficial to the desulfurization clear flue gas to avoid the condition forming aerosol and make the solution sent to the oxidation ditch approaching to the optimal oxidation concentration. The composite cost for flue gas desulfurizing can be reduced, using the quantity of heat of the flue gas in the entrance to cycle concentrate the diluted solution of ammonia-ammiaonia.

The present invention relates to a multi-temperature control refrigerator, in which an ice machine is installed and the cooling mode of the refrigerator is a mixed air-cooling and direct cooling mode. Particularly, the present invention relates to a refrigerator having ice-making function, in which the refrigeration cycle is a dual cycle and two different evaporators are included. Due to that the ice making room of the of the refrigerator of the present invention adopts a mixed air-cooling and direct cooling mode, and that impulse solenoid valves and dual temperature control device are introduced to the dual cycle system, the energy is optimally distributed and utilized, the fluctuation of temperature is small and the ice making efficiency of the ice making room and the quality of the ice cubes are much improved. And the whole refrigerator makes less noise, consumes fewer refrigerants and makes ice of good quality rapidly.

The invention provides a control method and a control device of a heat pump type dual-cycle hot air drying system and relates to an air or gas supply or control device for drying a solid material or product, in particular to a control method and a control device of a heat pump type dual-cycle hot air drying system. The control method comprises the following steps that a temperature control parameter is configured, and a preset temperature control curve parameter is saved; air outlet temperature and drying room temperature and humidity are detected and monitored; the set temperature is dynamically adjusted according to a preset temperature control curve; a dual-cycle dynamic operating mode of the system is selected according to current set temperature. The control device utilizes a microprocessor to achieve program control, an inner cycle loop for large-volume circulation is established, condensing latent heat of a refrigerant is fully absorbed to improve basic air temperature, and high-temperature hot air is obtained through secondary heat exchange of an air supply circulation loop; the air outlet volume is automatically adjusted and controlled by adopting dual-path air volume to ensure the change demand for air outlet temperature and drying room temperature. The reliability of the product can be ensured, the unit energy efficiency can be also achieved, and the purpose of energy consumption is reduced.

The invention provides a single-tower dual-cycle wet flue gas desulfurization tower and a tube groove type liquid collection device, and belongs to the technical field of flue gas desulfurization. The desulfurization tower comprises a tower body, the bottom of the tower body is provided with a flue gas inlet, the top of the tower body is provided with a flue gas outlet, an upper spray layer and a lower spray layer are arranged on the portion, between the flue gas inlet and the flue gas outlet, inside the tower body, and the tube groove type liquid collection device is installed between the upper spray layer and the lower spray layer and separates slurry of the upper spray layer from slurry of the lower spray layer; the tube groove type liquid collection device comprises multiple liquid collection tube grooves which are formed for multiple layers in the longitudinal direction, the two adjacent layers of the liquid collection tube grooves are arranged in a staggered mode, the liquid collection tube grooves are arranged in an inclined mode, and the lower ends of the liquid collection tube grooves are communicated with a diversion groove. According to the single-tower dual-cycle wet flue gas desulfurization tower and the tube groove type liquid collection device, the flow field is uniformly distributed, the resistance loss of the structural design is small, and the contact effect between the gas and liquid is good. Therefore, the slurry of the upper spray layer can be collected, the system resistance can be reduced, and the desulphurization efficiency is improved.

The invention relates to an experimental tank system of a riparian zone, belonging to the field of physical model experiments in hydraulic engineering. The experimental tank system comprises a tank control platform, an experimental composite-type tank, dual-cycle water supply systems, a dual-level flow control system and a switching system. According to the invention, a cyclic surface water supply system and a cyclic underground water supply system which are independent can be used for effectively controlling surface water of rivers to circulate at a higher speed and underground water to circulate at a low speed, and thus river and river bank water flow environments which further accord with natural conditions are provided for a riparian zone experiment; the dual-level flow control system can be used for adjusting and controlling level and flow boundary conditions of the surface water of the rivers and the underground water of the river bank simultaneously, so that the problems that level and flow conditions of the rivers can be independently adjusted only in the traditional river dynamics experiment and level and flow conditions of the underground water can be independently adjusted only in the traditional underground water experiment; and the electronic intelligent switching system can be used for intelligently adjusting and controlling switch-on and switch-off as well as openness of relative power supply switches, valves, tail gates and the like of the experimental tank system. The experimental tank system disclosed by the invention has high automation degree and is provided with an experiment control platform which is simple and easy to operate, so that a user can finish related operations of the experimental tank system of the riparian zone in the same control interface; and the experimental tank system has a fault prompt function and is convenient for emergent measure taking and equipment overhauling.

The invention relates to a cooling method for an oil-immersed transformer and a system thereof, and aims at providing a two-cycle cooling method for the oil-immersed transformer; the transformer oil of the oil-immersed transformer transmits heat to liquid evaporation cooling medium with low temperature by a heat exchanger, and the liquid evaporation cooling medium is vaporized after the temperature thereof rises; gaseous evaporation cooling medium is condensed into liquid by a condensing device, and the liquid reflows to the heat exchanger; another purpose of the invention is a cooling system of the oil-immersed transformer, and the oil-immersed transformer, the heat exchanger and the condensing device are connected together by a pipeline; the transformer oil is stored in the oil-immersed transformer and passes through the oil line part full of the heat exchangers of the pipelines, and the liquid evaporation cooling medium is stored in the evaporation cooling medium part of the heat exchanger; the adopted evaporation cooling medium is fluorocarbon. The cooling method and the system for the oil-immersed transformer solves the problem of large occupying field of the transformer cooling device and outside natural environmental impact and have the advantages of small occupy area, low noise, low energy consumption, safety and reliability.

The invention provides a dual-cycle machine room energy-saving air conditioner which comprises an evaporator arranged in a machine room as well as a condenser, a compressor, a three-way valve, a first intermediate heat exchanger and a second intermediate heat exchanger which are arranged outside the machine room, wherein the three-way valve comprises a first inlet, a second inlet and an outlet, and the outlet is alternatively communicated with the first inlet or the second inlet; and the alternative communication of the three-way valve can realize the switching between a heat-tube heat exchange mode and a compression refrigerating cycle heat exchange mode. The dual-cycle machine room energy-saving air conditioner can flexibly select one heat exchange mode according to the temperature difference between the interior and the exterior of the machine room, thereby effectively solving the heat extraction problem of the machine room and achieving the advantages of low energy consumption, high reliability and long service life.

A device has an engine mechanically coupled to a generator, and a plurality of electrical receptacles coupled to the generator. The device also includes a transformer and a selector switch for selectively placing the transformer in a circuit containing at least one of the plurality of electrical outlets.

The invention discloses a high/low-temperature cooling system of a dual-cycle engine. The system comprises high-temperature and low-temperature water circulating cooling systems. The high-temperaturesystem is selectively opened or closed through a temperature adjuster and an electromagnetic valve to switch the flowing direction of cooling water according to engine loads so as to realize quick machine warming and reduction of the oil consumption. A cylinder cover and a cylinder block water jacket are maintained in serial connection in the cold starting phase of an engine, so that twice heatingis performed in one cycle of the cooling water to accelerate heating of the cooling water to the greatest extent. In the machine warming and high-temperature phase with higher engine temperature, thecylinder cover and the cylinder block water jacket are maintained in parallel connection to increase the water flow of the engine to the greatest extent; and respective water flows of a cylinder block and the cylinder cover can be controlled to achieve optimal temperature so as to reduce the knocking and the oil consumption. The low-temperature cycle system adopts an electronic water pump and a common water storage kettle; and a throttling hole is formed between the water storage kettle and the low-temperature system, so that the arrangement space and cost are reduced, the influence on the low-temperature system by the high-temperature system is reduced as far as possible, the intake temperature and the intake efficiency of the engine are effectively guaranteed, the dynamic property of the engine is exerted, and the knocking is prevented.

The invention relates to a single-column dual-cycle efficient desulfurization process system. The system comprises a main absorption tower, a main slurry tank and an auxiliary slurry tank, wherein a flue gas inlet is formed in one side of the lower part of the main absorption tower, and a flue gas outlet is formed in the upper part of the main absorption tower; a gypsum slurry oxidizing slurry tank is arranged at the bottom of the main absorption tower as the main slurry tank; and two absorption regions including a main cycle spraying region and an auxiliary cycle spraying region are arranged in a spraying region of the main absorption tower. The single-column dual-cycle efficient desulfurization process system has the characteristics and beneficial effects that spraying slurry of the main spraying region and the auxiliary spraying region absorbs SO2, absorbed and fused SO2 is strengthened by virtue of mass transfer components arranged between the main spraying region and the auxiliary spraying region, and finally the pH value of the mixed slurry is 4.5-5.0, so that calcium sulfite in the slurry of the main slurry tank is helped to be oxidized into calcium sulfate by virtue of forced-oxidation air and finally crystallizes to form gypsum, and the gypsum slurry is discharged by virtue of a gypsum discharging pump.