324results about How to "Realization cost" patented technology

The invention discloses a continuous extractive distillation separation method of a dimethyl carbonate-methanol azeotropic mixture, and relates to a continuous extractive distillation method. The technical process of the method is as follows: ethylene glycol is used as an extraction agent at normal pressure; the solvent ratio is 1-3; the separated dimethyl carbonate-methanol azeotropic mixture is fed from the middle part of a tower, the extraction agent is fed from the top of the tower, and the reflux ratio is 2; high-purity methanol is extracted from the tower top of an extractive distillation tower, and the dimethyl carbonate and the extraction agent are extracted from the tower bottom; the fraction at the tower bottom enters an extraction agent recovery tower, and the reflux ratio is 3; and dimethyl carbonate is extracted from the tower top, and the extraction agent extracted from the tower bottom can be recycled. The method disclosed by the invention adopts ethylene glycol as an extraction agent, and improves the separation effect of the dimethyl carbonate-methanol azeotropic mixture; and since ethylene glycol is a co-production product in synthesizing dimethyl carbonate by a transesterification method, the source is conveniently available, and the cost caused by introducing other substances is avoided.

A laser focusing optical system is provided with a laser beam source for projecting laser beams; a focusing optical system, which is arranged between the laser beam source and a medium to focus the laser beams in the medium and refocus the beams from the focusing point; a photodetector for detecting the beams refocused by the focusing optical system; and a laser emitting point shifting means, which can shift a position of the laser emitting point of the laser beams and a position of the photodetector, along an optical axis of the laser beams, corresponding to the refraction factor of the medium wherein the laser beams are focused and a distance between the surface of the medium and a focusing point.

The invention relates to a bearing press-fitting device, in particular to an automatic bearing press-fitting machine for motor rotors. The invention aims at providing the automatic bearing press-fitting machine which is capable of pressing and fitting rotors at the two ends at one time, is simple to operate, safe and reliable, high in press-fitting efficiency and good in press-fitting quality. The automatic bearing press-fitting machine comprises a base, press-fitting cylinders, a left bearing supply mechanism, a right bearing supply mechanism, a left bearing locating mechanism, a right bearing locating mechanism and a rotor locating mechanism; the left and the right bearing supply mechanisms supply bearings to the left and the right bearing locating mechanisms; the bearings are located by the left and the right bearing locating mechanisms; the left bearing locating mechanism and the rotor locating mechanism are pushed by a piston rod of the press-fitting cylinders to slide to the position of the right bearing locating mechanism to press and fit the bearings at the two ends at one time. In addition, the cylinders in the whole device are all provided with magnetic switches. A PLC (programmable logic controller) can automatically control the operation of the whole device by the signals from the magnetic switches to the PLC so as to press and fit the bearings at the two ends automatically.

The invention relates to an organic ecological farming system for a rice field. The system is characterized in that a water inlet canal, a drainage canal, a water inlet channel and a drainage channel are crossed to form the cross-shaped drainage rice field, a pump station is arranged at the crossed position of the crossed canals and channels, the rice field is divided into multiple field pieces in the type of plain terraced fields, fish ditches are arranged on the peripheries of the field pieces, and a fish pit is arranged at one corner of each field piece. According to the organic ecological farming system, high harvesting benefits of both rice and fish are achieved, and meanwhile the water conservation fertilizer conservation, low carbon and high ecosystem service functions are achieved; organic ecological farming can be carried out by transforming a common rice field near a good water source appropriately, and the optimized technology for transforming low yield fields and bottom land is achieved.

The invention relates to an extended range electromobile power system using a dual-clutch two-speed transmission. The extended range electromobile power system is characterized in that a crank shaft of an internal combustion engine is connected with a shell of a first dual-clutch transmission gear; a first clutch of the first dual-clutch transmission gear is connected with a shell of a second dual-clutch transmission gear through a transmission shaft; the second clutch of the first dual-clutch transmission gear is connected with a first motor rotor; a second motor rotor is connected with a shell of the second dual-clutch transmission gear through a transmission shaft; and two sets of change gears are respectively controlled to output power by controlling the disengagement or engagement of two clutches of the second dual-clutch transmission gear to realize two gears. The vehicle is mainly driven by a second motor during low-speed driving, the low-speed and low-load operation of an engine is avoided, and the economical efficiency and emission of the whole vehicle are improved; during high-speed driving, the power system operates in parallel to drive the vehicle, the energy transmission efficiency is high, and the driving range of the vehicle is further extended on the basis of ensuring the dynamic property of the whole vehicle.

The invention relates to a two-section rotation oxygen-enrichment external heating oxidation technology and device for dry-method and semi-dry method desulfurized ash. A two-section type rotation oxidation kiln is adopted, oxygen is introduced into the kiln and heating is implemented by adopting an external heating furnace, so that the oxidizing process for converting CaSO3 in the desulfurized ash into CaSO4 is completed. Compared with the prior art, the technology and the device have the benefits as follows: (1), during the oxidation of the desulfurized ash in the oxidation kiln, stable oxidation time, balanced oxidation temperature, sufficient oxygen content and appropriate oxidation atmosphere are realized, the technical measures such as automatic control, surplus heat utilization, dust removal and environment protection are adopted, so that the low-cost oxidation and industrialized production are realized; (2), the provided systematic desulfurized ash oxidation production line is suitable for the industrialized and large-scale production requirements; (3), the processing parameters such as oxidation temperature, time and oxygen content are controlled through a PC (Personal Computer), so that the appropriate oxidation conditions are ensured; (4), the promotion of the development of a dry-method and semi-dry method desulfuration technology is facilitated; (5), the resource utilization of the desulfurized ash is realized, and the energy conservation, emission reduction and environment protection are facilitated.

The embodiment of the present invention discloses a method of counting the warehouse and store commodities automatically. The method comprises the steps of warehousing and sending the commodities to a warehousing and packing assembly line, firstly, scanning the RFID labels of the packing boxes, and using a system to automatically bind the RFID label information of the packing boxes with the commodities in the packing boxes; delivering the warehouse-out commodities to a sale store via the logistics, installing an RFID reader-writer at the entrance of the sale store, reading the RFID label information of the packing boxes at the entrance of the store, using a warehousing management system to verify and check with the orders automatically, if the check is consistent, reducing the inventory of a warehouse, and increasing the inventory of the store; at the same time, selling the batch of commodities in the store, and unbinding the relationship with the packing boxes; counting automatically in the warehouse and the sale store via a hand-held RFID terminal. The method of counting the warehouse and store commodities automatically is high in accuracy and efficiency, enables the commodity warehouse-in and warehouse-out time to be shortened and the labor cost to be reduced simultaneously, and creates the very good economic benefit.

The invention provides a steel plate with super-low cost, 800MPa-grade high toughness and excellent weldability and a manufacture method thereof. According to the manufacture method, metallurgical technical control methods of selecting super-low C-super-low Si-high Mn-highAls-(low Mo+high Cr) alloying-(Ti+Nb+V+B)microalloying composition system as basis, properly increasing the content of acid solution Als in steel, performing Ca treatment and leading the value of [(%C)+(%Mn)/6+(%Si)/24+(%Ni)/40+(%Cr)/5+(%Mo)/4+(%V)/14+7.3(%B)]*V cooling speed/(T starting cooling temperature-T terminating cooling temperature)*t to be more than or equal to 0.60 and less than or equal to 1.00, and the like are adopted, a specific controlled-rolling and online tempering process is optimized, the tempered steel plate has excellent weldability while the strength, low-temperature toughness, obdurability and plasticity of the tempered steel plate are matched, the problem of the weldability of a nickel-free tempered steel plate can be successfully solved, the welding HAZ has high strength, high toughness and excellent plasticity. The steel plate is especially suitable for hydroelectric pressure pipelines/volute casings/steel bifurcated pipes, marine platforms, large maritime working machinery and other large steel structures and equipment.

The invention discloses a double-channel reservation access control method in a mobile Ad Hoc network, comprising reservation slot selection, contention mini-slot selection and RTS/CTS handshaking, and packet data transmission and confirmation. The method improves network throughput under the single-hop network and multi-hop network, and simultaneously solves the hidden terminal and exposed terminal problems. Furthermore, the method provided by the invention can be realized on hardware.

The invention discloses an online measurement device and measurement method for the NO concentration in a high-NO2 and low-NO atmosphere. The online measurement device comprises an ozone generation unit, a connection pipe cleaning unit and a sampling pipe, wherein a connection reaction bin, an NO2 measuring instrument, a second mass flow meter and a first air pump are sequentially connected behind the sampling pipe; and the connection pipe cleaning unit comprises an electromagnetic three-way valve, an activated carbon tube, a current-limiting hole and a second air pump. By adopting a cavity-enhanced absorption spectroscopy, a sampling mode (actual atmosphere of ozone is added) or a zero point mode (actual atmosphere) is set through the electromagnetic three-way valve; absorption spectrum intensity signals of two modes are measured through an NO2 measuring instrument as a sampling spectrum and a reference spectrum respectively, and then NO in the atmosphere is converted into a concentration value of the NO2 through spectral fitting, that is to say, measurement of the NO concentration in the atmosphere environment is achieved, so that the online measurement device and measurement method have the characteristics of being free of NO2 concentration interference, a low detection limit, high sensitivity, high temporal-spatial resolution, high stability and low cost.

The invention discloses a method for transmitting data based on Orthogonal Frequency Division Multiplexing (OFDM), which is applied to transmission of uplink data of middle-distance and short-distance wireless communication systems and is characterized in that: available frequency band of the system is equally divided into N basic sub-frequency bands in advance, wherein the method comprises the following steps: a transmitting site transmits data to a receiving site by a single sub-frequency band or M combined sub-frequency bands, wherein M is equal to 2*n; the transmitting site employs a sampling rate of fs or M*fs of a baseband sample; the receiving site receives data sent from one or a plurality of transmitting sites in the available frequency band; and the receiving site employs a sampling rate of N*fs of the baseband sample. The invention further provides a system for transmitting data based on the OFDM. The method and the system are based on the OFDM technology and combined use of the sub-frequency bands; according to the method and the system, the transmitting site and the receiving site in the wireless communication system are permitted to have different bandwidth configurations, the transmitting site can utilize lower configuration while the receiving site can utilize higher configuration, thereby improving the efficiency, the spectrum efficiency, the throughput rate, etc.; in addition, a plurality of user sites communicating with an access point simultaneously can be realized.

The invention discloses a micro/nano-satellite multi-star adaption portion deploy device which comprises a deploy instrument and a platform interface. The platform interface is used for achieving physical and electric connection between the deploy instrument and the satellite platform. The deploy instrument comprises a support assembly and an ejection assembly. The support assembly comprises partition plates (1) and lateral plates (2). A slot (11) is formed in each partition plate (1), and the lateral plates (2) are clamped in the slots (11). The plurality of partition plates arranged in parallel and the plurality of lateral plates of different specifications are utilized to form a plurality of layers of cases with different sizes to contain micro/nano satellites of different specifications. The ejection assembly (3) is used for ejecting the micro/nano satellites. The deploying instrument can contain the micro/nano satellites of various specifications and launch the satellites, and is good in generality and low in cost.

An improved gas-electric power delivery system is provided. The invention provides an array of internal combustion engine-powered electric generators and an array of electric drive motors wherein each electric drive motor connects to a common shaft. The common shaft of the electric drive motor array connects to a mechanical load of varying power demand. The electric drive motors draw power from a battery in response to demands on the motors by the varying power demands of the external load. The array of electric generators charges the battery and each such generator turns on and off, as needed, to maintain the battery charge in response to demands on the battery by the electric drive motor array. Each electric motor connected to a common shaft in the electric motor array also turns on and off, as needed, to meet the varying power demands of the external load.

The invention provides a macadam slope vegetation recovery structure and a construction method, and relates to the technical field of slope restoration. According to the macadam slope vegetation recovery structure, by means of matched arrangement of a covering soil layer, a first protection layer, a base layer, a planting layer and other specific structures, the slope stability can be effectivelyenhanced, ecological restoration on a macadam slope is achieved, the needed covering soil is greatly reduced, and the technical problem that the covering soil layer is large in thickness, the soil volume is large, and a soil source cannot be guaranteed due to the fact that direct soil covering is adopted for plant cultivation in the prior art is relieved. In addition, the macadam slope vegetationrecovery structure can control the macadam slope locally, macadam clearing and carrying expenses are saved, the cost is greatly reduced, and the technical problem that due to the fact that in the prior art, a machine is adopted for clearing and carrying the macadam slope in the prior art, the stacking place is limited, the transportation distance is long, and the clearing and carrying cost is highis relieved. The construction method of the macadam slope vegetation recovery structure is further provided.

The present invention discloses a reference voltage buffer circuit, comprising a reference voltage generating circuit which generates and outputs a first primary voltage and a second primary voltage, and further comprising a driving buffer circuit and a deviation detecting circuit. The reference voltage buffer circuit provided by the embodiment of the present invention administers voltage adjustment to the given nodes of the driving buffer circuit through the deviation detecting circuit, realizing the adjustment and correction of the abnormal working state of a circuit, reliably solving the problem of reference voltage buffer circuit failing to work normally caused by production technique errors or other unpredictable factors, improving the production rate of standard quality of a circuit, providing reference voltage of great driving capacity, and achieving lower cost and circuit power dissipation.

The invention relates to the preparation of molecular sieves, and aims at providing a method for synthesizing a silicon-rich ZSM-48 zeolite molecular sieve by using a seed-crystal guiding method. Themethod for synthesizing the silicon-rich ZSM-48 zeolite molecular sieve by using the seed-crystal guiding method comprises the following steps: placing an alkali source, a silicon source, seed crystal, an organic additive and an aluminum source in a mortar to be mixed, transferring a mixture to a reactor to be crystallized after grinding; then carrying out suction filtration on a reaction productand drying to obtain ZSM-48 zeolite molecular sieve raw powder. The method for preparing the silicon-rich ZSM-48 zeolite molecular sieve disclosed by the invention greatly improves the yield and further reduces unnecessary loss in the production process because no solvent is used; and the method further avoids the use of expensive organic template agents with higher toxicity to greatly reduce thesynthesis cost, is environment-friendly in the synthesis process, and finally realizes the greening and low cost of synthesis of all-silicon and high-silicon ZSM-48 zeolite molecular sieves.

The invention provides an electromechanical servo comprehensive control and energy source management device, which is used for servo motor control and energy source management, and comprises a microprocessing circuit, detecting circuits, a signal conversion circuit, an isolation driving amplifying circuit and an energy source management circuit, wherein the detecting circuits comprise a first voltage detecting circuit, a first current detecting circuit, a second voltage detecting circuit and a second current detecting circuit. The electromechanical servo comprehensive control and energy source management device provided by the invention has the advantages that the comprehensive management of absorption and release of energy sources can be realized, in addition, the system composition is simplified, the system weight is reduced, and meanwhile, the self test of an electromechanical servo system can be realized.

Disclosed is a preparation method of a seedling matrix based on solid waste. The preparation method involves matrix material determination, preparation step determination and preparation proportion determination. According to the method, the solid waste is used as the material of the seedling matrix, and the solid waste is selected from wormcast and a mixture of saw dust and slag. The preparation method comprises the steps that after the saw dust and the slag are smashed respectively, the saw dust and the slag are sieved, powder-shaped saw dust and powder-shaped slag are obtained, and the powder-shaped saw dust and the powder-shaped slag are mixed according to the volume ratio of 1:1 to obtain the mixture of the saw dust and the slag; the wormcast is sieved to obtain wormcast fine powder; the mixture of the saw dust and the slag is mixed with the wormcast fine powder according to the weight ratio of 1:3 to obtain the material of the seedling matrix. According to the preparation method, the solid waste of the slag, the saw dust and the wormcast replaces the non-renewable resources such as turf, vermiculite and perlite to be used as the basic material for preparing the seedling matrix, and therefore the seedling cost is greatly lowered. The material of the seedling matrix realizes recycling of the solid waste while improving seedling stress resistance and cultivating strong seedlings.

The invention discloses a high-power modular battery formation charging/discharging system, belonging to the field of battery formation charge/discharge. The system comprises an invertible DC (direct current) power module, a DC bus, a conversion charging/discharging module and a central control unit. The invertible DC power module adopts an automatic master-slave current sharing technology, can automatically configure the module number according to the system capacity, realizes automatic current sharing among the modules, and can inversion-feed the redundant electric energy back to the power grid so as to realize master-slave redundant invertible DC power module design; the DC bus transmits electric energy in the system; the conversion charging/discharging module is directly connected with the DC bus; by adopting the automatic master-slave current sharing technology, each module can form a loop independently for production, or multiple modules are freely connected in parallel to form a loop for production; and the central control unit is connected with the invertible DC power module and the conversion charging/discharging module through the bus, and can realize the functions of operation data acquisition, system resource allocation, module alternation coordination, system capacity reduction protection and the like.

In the situation of installing sensor on sensor installation surface, it needs install fixed member or sticking member and wastes labor hours in installation. It proceeds by installing the hole G for installation in sensor A. When installing sensor A onto the sensor installation surface 30, it inserts stud bolt 31 installed on sensor installation surface 30 into the said hole G for installation and pierces hole G, then threading nut member 32 on the stud bolt 31 and tighten said nut member 32.

The invention discloses a special material for an UHMWPE (Ultrahigh molecular weight polyethylene) alloy capacity increasing and toughening modified polypropylene corrugated pipe and a preparation method of the special material. The special material comprises, by weight, 60-85 parts of block co-polypropylene granules, 5-10 parts of fillers, 5-30 parts of capacity increasing and toughening agents and 1-5 parts of flowability modifiers. The corrugated pipe produced by the special material has the advantages of good mechanical properties, better low-temperature impact resistance, high heat distortion temperature, high heat conductivity coefficient, good flame resistance, good surface glossiness, good production stability and the like.

The invention relates to an organic thin-film transistor and a manufacturing method thereof, aiming at solving the problem that the interconnection between an upper electrode layer and a lower electrode layer is harder to realize by a through hole formed in a self-patterned insulating layer in the existing thin-film transistor. The organic thin-film transistor comprises an insulating substrate, a source and drain electrode layer, an organic semiconductor layer, a self-patterned organic gate insulating layer, a gate electrode layer, an organic flattening layer and a pixel electrode. The method comprises the step of forming a multi-layer structure which sequentially comprises the insulating substrate, the source and drain electrode layer, the organic semiconductor layer, the self-patterned organic gate insulating layer, the gate electrode layer and the organic flattening layer. The organic thin-film transistor and the manufacturing method thereof inherit the advantage of the simple process of the self-patterned insulating layer, and solve the problem of disconnection caused in the interconnection process of the upper electrode layer and the lower electrode layer; the organic thin-film transistor can be prepared with low cost.