49results about How to "For special occasions" patented technology

The invention discloses a cross-linked polypropylene composite material. The cross-linked polypropylene composite material is prepared by mixing polypropylene, an initiator, a cross-linking agent, a self-cross-linking promoter, a catalyst, a primary antioxidant, an auxiliary antioxidant and other processing aids according to a certain proportion. A preparation method of the cross-linked polypropylene composite material comprises the following steps of: weighing other components except the self-cross-linking promoter and the cross-linking catalyst according to the proportion first, fully mixing in a mixing kettle, and then adding into a twin-screw extruder from a feeding port; and adding the self-cross-linking promoter and the cross-linking catalyst into the twin-screw extruder from a side port of a screw, and then extruding and pelleting to obtain the cross-linked polypropylene composite material, wherein the adding of the self-cross-linking promoter from the side port of the screw is delayed, so that silane is grafted on polypropylene first and then reacts with the self-cross-linking promoter to form preliminary cross-linked polypropylene. The invention has the advantages of overcoming a warm water or steam cross-linking process in the conventional silane cross-linked polypropylene, realizing one-step continuous production, meeting the requirement of injection molding, and solving the problem that the subsequent processing cannot be performed by a radiation cross-linking method, along with excellent mechanical property.

The invention provides a distributed solar energy cascade utilization system and belongs to the field of solar energy utilization. The system mainly comprises a main solar energy generating system and a residual heat utilization system. In the main solar energy generating system, a high-temperature heat collector, a steam turbine, a first heat exchanger and a circulating pump are connected in turn to form a water circulating passage; an electric generator is connected with the steam turbine; and an electrical storage device is connected with the electric generator. In the residual heat utilization system, a first heat exchanger, a hot water system, a refrigerating system or a heating system and a circulating pump are connected in turn to form a water circulating passage, wherein the main generating system is connected with the residual heat utilization system through the first heat exchanger. The system aims to realize synchronous supply of cold, heat and electricity by using solar energy so as to meet the requirements of residents on basic energy sources in daily life.

A method for manufacturing small-diameter metallic elbow pipe includes such steps as providing proper raw material, forging, turning to become semi-circular annular body, symmetrically and radial splitting to obtain to semi-circular bodies, closing both together, welding and trimming welded seams.

The invention relates to an artificial electromagnetic material with characteristics of broadband high refractive index and low dispersion. The artificial electromagnetic material with characteristics of broadband high refractive index and low dispersion comprises at least one artificial electromagnetic material slice layer. Each manual electromagnetic material slice layer comprises two opposite substrates and at least a windmill-shaped artificial microstructure which is arranged between the two substrates. The artificial electromagnetic material in the structure possesses high refractive index in a wide band scope, is stable in refractive index change, meets requirements of special occasions such as semiconductor fabrication and antenna manufacturing and possesses wide appliance prospects.

The invention discloses a truss-vehicle type dredging machine. The truss-vehicle type dredging machine comprises a chain type dredging bucket, a drive frame, a belt conveyor and a self-locking type lifting mechanism, wherein the drive frame is arranged at the edges of a scum tank through the coordination of slide wheels and guide rails, drive rollers are mounted on the drive frame through multiple supports, drive gears are mounted at two ends and in the middle of each drive roller, the chain type dredging buckets are mounted on the drive gears through chains, the lowermost drive roller is mounted on the drive frame through the self-locking type lifting mechanism, the belt conveyor is arranged below the uppermost drive roller, and an oblique mud blocking plate is mounted on the drive frame and located below the belt conveyor and the uppermost drive roller. The truss-vehicle type dredging machine adopting the truss structure has the advantages that the truss-vehicle type dredging machine is firm and durable, long in service life, high in transmission efficiency, few in mechanical faults, good in dredging effect, fast in transmission, simple and convenient to maintain and low in operation cost; the machine adopts full-automatic operation, does not need to be operated and followed by staff and can reduce influence of special occasions on staff health.

The invention discloses a low-temperature evaporation device and process. The device includes a housing, a roller shaft and a soaking band; a liquid inlet and a liquid outlet are formed in the housing; the roller shaft includes an upper roller shaft body, a lower roller shaft body, a tightening roller shaft body, a driving roller shaft body and a supporting piece connected to the housing; the upper roller shaft body, the lower roller shaft body, the tightening roller shaft body and the driving roller shaft body are distributed parallelly in the housing in the same direction; the soaking band penetrates through the upper roller shaft body, the lower roller shaft body, the tightening roller shaft body and the driving roller shaft body to form a closed loop; the lower roller shaft body is completely or partially soaked under the liquid level of a to-be-evaporated feed liquid, it is ensured that the portion, on the lower roller shaft body, of the soaking band is in contact with the to-be-evaporated feed liquid, and therefore a layer of liquid membrane is formed on the outer surface of the soaking band when a liquid material is in contact with the outer surface of the soaking band. By designing the soaking band for penetrating through the whole device body vertically, the superficial area of an available liquid membrane per unit volume of an evaporator is large, and the evaporationefficiency of the evaporator of equipment is greatly improved. By designing the soaking band for circularly rotating, the liquid membrane can be conveniently maintained on the surface of the soaking band, and energy consumption for forming the membrane is reduced.

The invention belongs to the technical field of helicopter model rotor tests, and discloses a rotating speed control method capable of controlling a motor phase, and the method comprises the steps: collecting an actual rotating speed signal of a motor; setting an expected rotating speed signal of the motor and an expected phase signal of the motor; determining a rotating speed error signal of themotor; according to the rotating speed error signal of the motor and the expected phase signal of the motor, setting a motion trail curve of the expected phase signal and the rotating speed error signal of the motor, and setting a keeping control law of the motion trail curve; setting a motion control law of the motion trail curve; according to the motion control law of the motion trail curve andthe keeping control law of the motion trail curve, enabling the expected phase signal and the rotating speed error signal of the motor to be changed according to the motion trail curve, and controlling the rotating speed and the phase of the motor at the same time.

The invention discloses a stage projection lamp having a dual-color wheel system. The stage projection lamp is composed of a convergence assembly, a light splitting assembly, a trimming assembly, a reflection and refraction assembly, a prism system, a digital micromirror component and a projection lens that are arranged successively along a light source propagation direction. The convergence component is used for converging light emitted by the light source into parallel light; the light splitting assembly is used for filtering RBG three-primary-color light periodically; the trimming assemblyis used for realizing light homogenization; the reflection and refraction assembly is used for light reflection and refraction; the digital micromirror component is used for reflecting light to a prism system and projecting light in the projection lens, and carrying out imaging under the effect of the projection lens; and the projection lens is sued for enlarging the image and projecting the processed image on a target object. The light splitting assembly is a dual-color wheel system and consists of a first color wheel and a second color wheel that work independently, so that the switching ofthe projection modes is realized. The light output quantity in a special mode can reach 55% to 60% of original effective light to enable the luminous efficacy to be 2 to 2.5 times of the ordinary-projection-mode projector, so that the luminous efficacy is enhanced significantly.

The invention discloses a method for manufacturing a conductor core in an ultra-flexible cable. Firstly, electrical steel wire, electrical steel wire rope, aramid wire or aramid rope are selected as the reinforcing core of the cable according to the performance requirements, and the reinforcing core is rewound The machine is rewound to the steel plate, and then the copper strands are braided to the reinforcement core by a braiding machine on the periphery of the reinforcement core to complete the manufacture of the conductor core. In the present invention, through the improvement of the manufacturing method of the conductor core and the application of reasonable materials, the cable is equipped with super flexibility, excellent bending, curling, twisting, and stretching properties, thereby meeting the needs of some special occasions. The cable prepared by this method The conductor core has a tensile strength of more than 1000Mpa, an average breaking and bending time of more than hundreds of thousands of times, and an average service life of more than one year.

The invention relates to a bidirectional inclining type automatic open type skylight. The skylight comprises a skylight support, a skylight steel frame, a driving mechanism and a track, wherein the skylight steel frame is of a bidirectional inclining type structure, the middle vertical plane of the track is vertical to ground, multiple side guiding roller groups are also arranged at one side of the skylight steel frame along the extension direction of the track, the side guiding roller groups are arranged at one higher side of the skylight support; each side guiding roller group comprises a guiding roller base, a main guiding roller and a secondary guiding roller; each guiding roller base is arranged at the lower side of the skylight steel frame, the main guiding roller and the secondary guiding roller are arranged at the lower side of the corresponding guiding roller base, the main guiding rollers and the secondary guiding rollers are respectively arranged at the two sides of the track, a working face of each main guiding roller clings to the side edge of the track, and a first leveling mechanism is arranged between the guiding roller bases and the skylight steel frame and between a roller assembly and the skylight steel frame respectively. The bidirectional inclining and automatic open type skylight provided by the invention realizes non-equal altitude arrangement of the track, so that the appearance of a building roof is in an integral bidirectional inclining form; meanwhile, mounting difficulty of the track is reduced, and service life of the skylight is prolonged.

The invention relates to a switch socket panel with LCD (Liquid Crystal Display). The switch socket panel is mainly characterized in that a circuit board for presenting parameters of the power consumption state, the working state, the operation control, and the like of a load is arranged and fixed in the switch socket panel, wherein an LCD module is used for presenting an intelligent man-machine control interface for carrying out data exchange and processing on the electrical state, the working state and automatic and manual operation data of an electric appliance for the load through various sensors, a central MCU (Microprogrammed Control Unit), a keyboard and a liquid crystal screen, so that a user can achieve ideal and humanized electrical safety only through simple operations; moreover, an extremely strong intelligent energy saving function is also provided, therefore, the defects of high energy consumption, low intelligentization and low safety of the traditional switch socket panels in the market are overcome.

The invention discloses a double-layer piston type tensile and compression tensionmeter which is composed of a cylinder body, a piston, grease, a top cover and a fluid pressure sensor. The tensionmeter is characterized in that the cylinder is composed of a cylinder and a cylinder bottom member; the cylinder body is internally provided with an interval which forms cylinder cavities communicated with each other up and down; the T-shaped piston is of an upper-lower connecting structure; the cylinder is provided with a sealed oil duct so that upper and down annular pressure cavities are communicated with each other; a protruded portion and top cover of the lower piston are provided with central threaded holes respectively, and can be connected with upper pulling force rings in a threaded way via the central threaded holes, thus, serve as the tensionmeter; the fluid pressure sensor generates an electric signal and sends the electric signal to a data collector via a signal line, and a pulling force value is calculated; and after that a movable bearing cylinder is mounted in the central threaded hole of the top cover, the tensionmeter can be directly mounted between a pressure object anda pressed object to measure the pressure value.

The invention discloses a fast disassembly and assembly hanging rack for an escape apparatus. The hanging rack is a fixing device used for the escape apparatus during escape and comprises a supporting rod assembly and a suspension arm, wherein, the supporting rod assembly is formed by connecting a plurality sections of metal pipes, each metal pipe comprises an outer metal pipe, and an inner metal pipe is arranged between every two adjacent metal pipes and is used as a connecting piece; and the lower end of the outer metal pipe on the bottom end is connected with an adjusting screw rod, a suspension arm is arranged on the upper outer metal pipe, and the outer end of the suspension arm is provided with the escape apparatus. Although the hanging rack needs to be mounted, the invention adopts the principle of mechanics, and the hanging rack can be well assembled without consuming electricity and usingtools, thereby meeting the requirements of special occasions during fire disaster.

A test strip container is disclosed. It is adapted to individually receive a plurality of test strips in a sealed fashion. A foil seal and/or mechanical seal may be provided that allows access/exposure to one test strip at a time. The container may also include a waste receptacle that can be closed-off for safe storage of spent test strips. The container may be used separately from a meter/lancing device which accepts and uses test strips or the container may itself be at least partially loaded into a meter for a more direct interface: The subject devices as well as methodology associated with their use is described. Kits including at least one subject device are also provided.