41results about How to "Low mechanical requirements" patented technology

The invention relates to an independent feathering control system and a control method for a wind driven generating set, wherein the control system comprises a sampling module, a control module and a driving module. A feathering motor in the driving module is connected with the blades of the wind driven generating set through a speed reducer. The sampling module is used to acquire the signals such as the wind driven generating set power, the boss rotating speed, the impeller position, the feathering angle, the paddle vibration, and the like, and to respectively send the acquired signals to the control module. The control module comprises a wind machine power controller for processing the wind driven generating set power signal and the boss rotating speed signal, a periodic unbalanced load compensation controller for processing the impeller position signal, the wind machine power signal and the boss rotating speed signal, a transient state impact load compensation controller for processing the feathering angle signal, the paddle vibration signal, the impeller position signal, the wind machine power signal and the boss rotating speed signal, and an output coupler for processing the signals outputted from the three controllers and comprehensively outputting the signals to the driving module.

Device for transporting containers in a packaging line, comprising a number of guide means such as a track, which determine a closed route comprising a horizontal stretch and upon which at least a first and second carrying element slide, characterised in that the guide means are directed on a vertical plane and in that each carrying element has two arms, each one of which extends to one side of said vertical plane, each arm (5a; 6a) of a carrying element being designed to work alongside the arm (5b; 6b) arranged on a same side of the vertical plane of the other carrying element adjacent to them, to jointly secure and transport at least one corresponding container, it therefore being possible for them to be secured and transported along the length of the horizontal stretch of said route and at least two containers between each two adjacent carrying elements at the same time, one at each side of the vertical plane.

The invention discloses a continuous wet oxidation process for degrading high concentration organic waste water, belonging to the field of water treatment. The continuous wet oxidation process for degrading high concentration organic waste water comprises the procedures: a waste water pressurizing procedure: pressurizing waste water to be treated; a waste water heat exchange procedure: carrying out direct and / or indirect heat exchange on the pressurized waste water and treated waste water so the temperature of the pressurized waste water rises; an oxidizer pressurizing procedure: pressurizing an oxidizer; a mixing procedure: thoroughly mixing the pressurized and heated waste water with the pressurized oxidizer; a reaction procedure: causing the mixed waste water and the oxidizer to generate oxidation reaction, obtaining the treated waste water and generating gas; and a separation procedure: continuously separating the treated waste water from gas. The continuous wet oxidation process for degrading high concentration organic waste water has the advantages of high efficiency, less energy consumption, stability of operation and the like.

The invention belongs to the field of chemical engineering technique and equipment, and particularly relates to a method for continuously producing polycarbonate by copolymerizing carbon dioxide and propylene oxide with a circulation flow reactor. The method comprises the following steps: introducing dry inert gas to replace atmosphere and remove water in the circulation flow reactor; adding propylene oxide, catalyst and carbon dioxide; copolymerizing the carbon dioxide and the propylene oxide under certain temperature and pressure to generate polycarbonate; and separating to obtain the aliphatic polycarbonate product, wherein the unreacted raw materials and gas are redistributed into the circulation flow reactor for cyclic utilization. The circulation flow reactor comprises a reactor shell, a raw material gas inlet, a gas distributor, a guide flow cylinder, a liquid feed port and a gas outlet, wherein a multilayer large-pore screen can be arranged in the guide flow cylinder, so that the circulating flow is divided into at least two stage when the pores of the guide flow cylinder wall are opened. The invention has the advantages of simple structure, low investment, good gas-liquid contact, good mass transfer, short time, high efficiency and the like, and is convenient to operate.

An all-optical-fiber adjustable optical attenuator comprises a single-mode optical fiber, a first multi-mode optical fiber, a second multi-mode optical fiber and a sleeve. The single-mode optical fiber is used for receiving signal light; the first multi-mode optical fiber is used for receiving the signal light output by the single-mode optical fiber, a coating layer and a cladding of the first multi-mode optical fiber are removed, and the first multi-mode optical fiber is coated with a polymer again; the second multi-mode optical fiber is used for receiving and outputting the signal light output by the first multi-mode optical fiber; the sleeve is used for placing the first multi-mode optical fiber. The refractive index of the polymer is larger than that of a fiber core of the first multi-mode optical fiber, one end of the single-mode optical fiber is connected with one end of the first multi-mode optical fiber, the other end of the first multi-mode optical fiber is connected with one end of the second multi-mode optical fiber, the other end of the second multi-mode optical fiber is a signal light output end, the other end of the single-mode optical module is a signal light input end, the optical axis of the single-mode optical fiber, the optical axis of the first multi-mode optical fiber and the optical axis of the second multi-mode optical fiber are located on the same straight line, the first multi-mode optical fiber is located in the sleeve, and a temperature control device used for adjusting the temperature in the sleeve is arranged outside the sleeve. The structure of the optical attenuator is simplified, and the requirement for mechanical performance is low.

The invention discloses an imaging device and method based on the fly-eye lens optical structure. The fly-eye lens imaging principle based on bionics is combined with a variable space frequency characteristic extraction technology, an image of the object space is formed on the plane of a two-dimensional photoelectric sensor through a fly-eye lens, image processing is conducted through a space frequency conversion filtering module and a color continuous analysis module, then image information blending is conducted, and required image characteristics and images are output to achieve high performance photoelectric imaging. The imaging method is simple in photoelectric structure, easy to achieve, low in mechanical requirement, flexible in system construction, prone to extract and analyze characteristic information, high in data processing capability and prone to integration and function expansion.

The invention discloses a mobile shooting system and method, and belongs to the technical field of electric appliances, and the system comprises a communication device which is used for transmitting shooting information planned for a shooting object to a control device, wherein the shooting information comprises an initial position and a moving path of a mobile shooting device during shooting; a control device which is used for controlling the mobile shooting device to move to an initial position and shooting according to a moving path after the mobile shooting device receives a shooting instruction triggered by the outside, and controlling a monochromatic light source arranged in the mobile shooting device to carry out stroboflash according to a preset stroboflash mode so as to expose the mobile shooting device; a mobile shooting device which is used for performing each single-channel analog gain according to a preset circular exposure mode after receiving a shooting instruction so as to collect a black-and-white image shot by a shooting object; and an image processing device which is used for carrying out picture splicing on the acquired black and white images and carrying out similarity registration on the image of each channel to obtain a true color image with all-channel alignment. According to the invention, the resolution can be improved.

The invention relates to the technical field of shoe materials, particularly to an EVA-modified polyurethane composite shoe material and a preparation method thereof. The EVA-modified polyurethane composite shoe material comprises the following raw materials in parts by weight: 20-30 parts of modified polyether polyol, 0.1-3.0 parts of a first catalyst, 0.1-1.0 part of a second catalyst, 20-30 parts of isocyanate, 5-10 parts of EVA waste, 0.1-3.0 parts of deionized water, 0.1-1.0 part of ethylene glycol, 1-3 parts of a chain extender, 10-20 parts of polyethylene, 0.1-0.5 part of a foam adjusting agent, 1-5 parts of an anti-yellowing agent and 1-5 parts of color paste. The EVA-modified polyurethane composite shoe material provided by the invention has excellent tensile strength, elongationat break, tearing strength and peel strength, and can well meet requirements on the mechanical properties of the material when being used as a sole material; and the adopted preparation method is simple and efficient in process, convenient to operate and control, high in product quality, low in cost and convenient for industrial production.

The invention relates to quick-mixing construction method based on prefabrication and assembly of a superposed type underground utility tunnel. The quick quick-mixing construction method based on prefabrication and assembly of the superposed type underground utility tunnel comprises the steps of zoning and segmenting an overall underground utility tunnel; excavating a foundation pit of the tunnel,and carrying out waterproof construction on a base layer and a bottom part; assembling prefabricated and assembled sections, and meanwhile, constructing reinforcing steel bars on cast-in-situ segments and carrying out template engineering construction; pouring and maintaining concrete; carrying out waterproof engineering construction; constructing a next zone: sequentially accomplishing the majorstructure construction of other tunnels in assembly zones according to the steps; and backfilling: backfilling the accepted tunnel structures until accomplishing the construction of the whole tunnel.According to the quick construction method, the underground utility tunnel is flow-process constructed in a zoning and segmenting way, each zone is divided into multiple flow-process operation areas, each flow-process operation area is further divided into a cast-in-situ segment and a prefabricated and assembled segment, and the advantages of the cast-in-situ construction technology and the prefabricated and assembled type construction technology are fully combined, so that the aim of effectively utilizing the construction operation surface for quick construction is achieved.

The invention relates to a module for converting solar radiation into electricity comprising: a panel (3) having a front (5) and a back (7) main side, with a solar energy converting means (11) arranged on or in the front main side and a means for fixing (15) the module to an object. In order to allow a mounting that prevents accumulation of dirt in the edge region of the panel the means for fixing (15) the module is furthermore arranged over the back (7) main side of the panel (3) and away from the edges (17a-17d) of the panel (3). The invention furthermore relates to a fixing device configured to receive such a module and to a combination of a module and a fixing device.

The invention belongs to the field of roadbed engineering, and relates to a soft soil area reinforced gravel pile supporting EPS light embankment structure and a construction method thereof, wherein the soft soil area reinforced gravel pile supporting EPS light embankment structure comprises bidirectional reinforced gravel piles, a drainage ditch, a geotechnical cloth cushion layer, a high-strength load transmission platform, a waterproof roll, edge covering soil, EPS foam blocks and a pavement structure layer; the bidirectional reinforced gravel piles are arranged in a pile group mode, are distributed in a square mode and are longitudinally arranged in a soft soil foundation; and the geotechnical cloth cushion layer, the high-strength load transfer platform, the waterproof roll and a second high-strength load transfer platform are sequentially laid on the top of the bidirectional reinforced gravel pile from bottom to top, the EPS foam blocks are filled in a layered mode, and finally a pavement structure layer is laid. The strength of the foundation is improved, the EPS foam block is used as the embankment filler, the dead weight of the embankment and the overlying load of the foundation soil are remarkably reduced, the overall stability of the structure is remarkably enhanced through the high-strength load transfer platform, and the defects that the foundation of the embankment built on the soft soil foundation is large in settlement, poor in stability and the like can be effectively overcome.

The invention relates to a bicycle crank shaft assembly, which belongs to the field of bicycle parts. The bicycle crank shaft rod assembly comprises a left crank, a shaft rod, a tooth disc and a rightcrank. The bicycle crank shaft rod assembly is characterized in that one ends of the left crank and the shaft rod are of an integrated structure, the other end of the shaft rod penetrates through thetooth disc to be fixedly connected with the right crank, and the tooth disc is fixedly connected with the right crank. According to the bicycle crank shaft rod assembly provided by the invention, byadopting the scheme of integrating the shaft rod and the left crank, no additional locking screw or fastener is used. The bicycle crank shaft rod assembly has the characteristics of simple structure,convenience in installation and disassembly, good overall rigidity, low requirement on mechanical properties of materials, few procedures, low cost and the like.

The invention relates to a piling device on water, which comprises a prestressed pipe for forming a pile, a pile cap arranged at the top end of the prestressed pipe, a hoop for fixing the pile cap and the prestressed pipe, and a vibration-capable A vibrating hammer, one end of the vibrating hammer has a first connecting portion connected to the pile cap, and the other end has a second connecting portion connected to the hanger. With the piling device of the present invention, during construction, it is only necessary to make a pile cap and a hoop according to the size of the pipe pile, use the hoop to fix the pipe pile and the pile cap, and then connect the vibrating hammer connected to the hanger to the pile cap , and finally the pipe pile is driven into the soil layer through the vibration of the vibrating hammer, the construction is simple, the speed is fast, the cost is low, and the mechanical requirements are relatively low.

The present invention relates to a device comprising a tubular drape for covering surgical equipment and furthermore comprising a container adapted to accommodate a substantial portion of the drape inan axially compressed state in a ring-shape, the container comprising a first sheet and a second sheet, wherein the first sheet and the second sheet are oppositely arranged, the first sheet having afirst opening and the second sheet having a second opening, wherein the first opening is configured for withdrawal of the drape from the container, and wherein the first and the second openings are configured for passing the surgical equipment to be covered therethrough, wherein the accommodated ring-shaped drape portion has a mechanical stiffness substantially contributing to the overall stiffness of the device. The present invention further relates to a method for manufacturing a device comprising a tubular drape and a container.

The invention discloses a contact structure having non-0 rigid separation speed, belonging to the technical field of power electronics. The contact structure comprises a movable contact bridge; a first movable contact and a second movable contact are arranged on the movable contact bridge; the contact structure further comprises a static contact and a collision rod; the static contact is opposite to the first movable contact; and the collision rod is opposite to the second movable contact. When separating is carried out, the collision rod collides the second movable contact, so that the second movable contact has the speed and drives the movable contact bridge; and thus, the first movable contact and the static contact are rapidly separated at the non-0 rigid separation speed.

Unique systems, methods, techniques and apparatuses of a modular power transformer are disclosed. One exemplary embodiment is a matrix power transformer including a plurality of block assemblies eachincluding a plurality of transformer modules, each transformer module including a primary winding coupled to an input and a secondary winding coupled to an output, the inputs of each transformer module in one block assembly being coupled together and the outputs of each transformer block being coupled together. One of the secondary windings includes a plurality of taps structured to be selectivelycoupled to the output of the associated transformer module assembly or another secondary winding of the associated module assembly.

The invention discloses a suspension type high-altitude emergency building platform structure which is composed of a carrying platform, a positioning platform, a platform image monitoring system, a posture monitoring system, an air pressure self-balancing system, an air heating system, an emergency equipment carrying system and an energy and signal connection mooring system. The positioning platform and the carrying platform are composed of an airbag and an exocapsule, light gas fills inside to form the airbag; the airbag and the exocapsule form a suspension bag body; the positioning cable is connected with the positioning platform and the carrying platform; the energy and signal connection mooring system is connected with the carrying platform and the ground pile foundation system; the platform image monitoring system, the attitude monitoring system, the air pressure self-balancing system and the air heating system carry out condition monitoring and form control on the carrying platform. The invention belongs to a high-altitude emergency management platform, which is used for carrying articles and equipment in an emergency management area and transmitting high-altitude signals, has the working height of 200-1000m high altitude, and is convenient to construct, light in weight and recyclable.

The invention discloses a construction method of a spherical crown-shaped space truss structure roof tile. According to a height and a span of an assembled spherical crown-shaped space truss structure, the surface of the assembled spherical crown-shaped space truss structure is divided into a plurality of sectors, then each sector is divided into multi-section roof tile construction areas according to a building height, and each section of construction area is divided into multiple layers; positioning is carried out by taking space truss axes where central areas of the sectors are located as reference lines, then construction is carried out on the two sides by taking the reference lines as reference lines in the construction areas, and construction precision is detected in real time; and the construction method is used for installing the roof tile according to layered and sectioned modes, and the installation precision and installation quality are effectively guaranteed. A plurality ofworking surfaces are adopted for simultaneous construction, the construction period is greatly saved, the requirements on hoisting machinery is small, the working efficiency is improved, the construction method enhances the construction safety and operability of the spherical crown-shaped space truss roof tile, and relatively speaking, the method is little in investment, good in economy and strong in applicability.

The invention provides a method for bare root transplantation by expanding magnoliaceae plant fibrous root reserving range. During excavation, a shovel and the like are utilized to perform excavation outwards and downwards gradually along a magnoliaceae trunk; and when excavation is performed to lateral roots, excavation is performed in the lateral root extending direction until a first layer of lateral roots is all exposed. Redundant soil on the lateral roots is removed, only soil on the original growth site of the seedlings is reserved, and it is guaranteed that fibrous root systems on the lateral roots are complete. The method has the advantages of having convenience in transportation and being simple to operate, high in survival rate and good in later period landscape effect and the like.

The invention belongs to the technical field of sulfuric acid separation and concentration, and in particular relates to a high-efficiency waste sulfuric acid concentration method. The high-efficiencywaste sulfuric acid concentration method comprises the following steps: S1, performing a precipitation reaction on waste sulfuric acid in a precipitation tank, wherein the precipitation tank structurally comprises a tank body on which a horizontal rotary plate and a rotating motor are arranged, stirring tubes are connected around the bottom edge of the horizontal rotary plate, and porous ball screens are connected onto each stirring tube in a penetrated manner; S2, heating: transferring filtered effluent to a heating tank for heating to 50 to 60 DEG C to obtain effluent of the heating tank; and S3, carrying out distillation and separation by using a concentrated membrane component. By adopting the method disclosed by the invention, the concentration of metal ions in waste sulfuric acid isremarkably reduced, and the concentration of sulfuric acid is further well improved, and furthermore, the novel precipitation tank is used for collecting flocculants while flocculating to greatly reduce the work load of a rear continuous filter, and reduce the equipment loss, so that the cost is lowered, and the efficiency of concentration and purification is high.

The invention relates to an independent feathering control system and a control method for a wind driven generating set, wherein the control system comprises a sampling module, a control module and a driving module. A feathering motor in the driving module is connected with the blades of the wind driven generating set through a speed reducer. The sampling module is used to acquire the signals such as the wind driven generating set power, the boss rotating speed, the impeller position, the feathering angle, the paddle vibration, and the like, and to respectively send the acquired signals to the control module. The control module comprises a wind machine power controller for processing the wind driven generating set power signal and the boss rotating speed signal, a periodic unbalanced loadcompensation controller for processing the impeller position signal, the wind machine power signal and the boss rotating speed signal, a transient state impact load compensation controller for processing the feathering angle signal, the paddle vibration signal, the impeller position signal, the wind machine power signal and the boss rotating speed signal, and an output coupler for processing the signals outputted from the three controllers and comprehensively outputting the signals to the driving module.

The invention discloses a hot stamping forming method and device for high-pressure and high-density fins of a plate-fin heat exchanger. As the pitch of the high-pressure and high-density fins is reduced, a stamping tool becomes thinner and thinner, so that the forming force borne by a die and the tool in the cold stamping forming process becomes larger and larger, and the die and the tool are prone to deformation, abrasion and even breakage. The hot stamping forming method for the high-pressure and high-density fins is provided for solving the problem that punching of the high-density and high-pressure fins cannot be completed through a cold stamping technology, the forming lateral force borne by the stamping die is greatly reduced compared with traditional cold stamping, the requirement for the mechanical performance of materials of the die and the tool is lowered, the forming difficulty is lowered, and therefore the fin process technical limit of a high-pressure, high-density and micro-channel plate-fin heat exchanger with large thickness and small fin pitch is broken through. The method comprises the following steps: carrying out solid solution heat preservation treatment on a coated aluminum alloy sheet, rapidly transferring the coated aluminum alloy sheet to a fin forming machine for hot stamping forming, then carrying out rapid quenching, and carrying out artificial aging treatment and cleaning.

The invention discloses a high-efficiency aeration grit chamber with a slag scraping function, which comprises a mirror-built grit chamber body. The bottom of the grit chamber body is preset with a sand accumulation channel distributed near one of the inner walls. The aeration pipeline system is installed on the tank walls and the bottom of the tank body on the opposite sides. The aeration pipeline system is used to make the liquid in the two grit chambers flow from one side away from the tank wall to the adjacent side of the tank wall. In order to make the sediment settle into the sand accumulation channel; a gantry moving frame is installed on the top of the two grit chamber bodies. The high-efficiency aeration grit chamber with slag scraping function provided by the invention changes the original rough mechanical sediment cleaning method, improves the original aeration pipeline, and makes the liquid form a water vortex under the cooperation of each aeration unit , which not only improves the aeration effect, but also accelerates the mixing of the chemical and the liquid, so that the sediment can sink in a concentrated manner.

The invention relates to a plug-in connection for galvanically separating microwave signals in coaxial lines (11, 21) so as to meet the requirements of an explosion-proof separation. The plug-in connection comprises a plug (22) and a socket (12) with an inner conductor and an outer conductor (16, 26, 15, 25), both of which are connected to a coaxial line (11, 21) and are also provided with an inner conductor and an outer conductor (13, 23, 14, 24). The plug-in connection comprises a separating element (19) separating the outer conductor (15) of the socket (12) from the outer conductor (25) of the plug (22). In another embodiment of the invention, both the outer conductor (15, 25) and the inner conductor (16, 26) are galvanically separated.

The invention relates to a cable force test device for a space cable structure, and the device comprises a support which serves as a vertical bearing member of the cable force test device; the net rack platform is supported by the support, the net rack platform is formed by connecting net rack rod pieces and bolt balls through high-strength bolts, and the bolt balls comprise an upper chord ball and a lower chord ball; the inhaul cable is arranged below the net rack platform, and two ends of the inhaul cable are connected with a lower chord ball of the net rack platform; the supporting rod is arranged below the net rack platform, the lower end is connected with the inhaul cable body, and the upper end is connected with a lower chord ball of the net rack platform; the tensioning tool is arranged on the inhaul cable and used for tensioning the inhaul cable to generate prestress; the platform reinforcing device is arranged above the net rack platform and is connected with an upper chord ball of the net rack platform; and the platform displacement monitoring system is arranged on the net rack platform. The cable force testing device can be used for cable force testing experiments of different cable structural forms, and is low in testing site requirement, high in adaptability, safe, convenient, simple in structure replacement, high in economical efficiency and worthy of engineering popularization.

The invention belongs to the field of subgrade engineering, and relates to an EPS light embankment structure supported by reinforced gravel piles in soft soil areas and a construction method, including two-way reinforced gravel piles, drainage ditch, geotextile cushion, high-strength load transfer platform, waterproof Coiled material, edge-wrapped soil, EPS foam block, pavement structure layer; two-way reinforced gravel piles are arranged in groups of piles, distributed in a square, and longitudinally arranged in soft soil foundation; the top of two-way reinforced gravel piles is laid sequentially from bottom to top Geotextile cushion, high-strength load transfer platform, waterproof membrane and the second layer of high-strength load transfer platform are filled with EPS foam blocks in layers, and finally the pavement structure layer is laid. The invention improves the strength of the foundation, uses the EPS foam block as the embankment filler, significantly reduces the self-weight of the embankment and the overlying load of the foundation soil, and significantly enhances the overall stability of the structure through the high-strength load transfer platform, which can effectively solve the problem of soft The embankment built on the soil foundation has the disadvantages of large foundation settlement and poor stability.