33results about How to "Reduce the difficulty of production technology" patented technology

The invention relates to a cooling tower supporting facility, in particular to a cooling tower fog dispersal and water collection device which consists of cool air supply systems, a condensing system, a mixed air bellow and an air intake regulating device. Each cool air supply system consists of a refrigerator, a refrigeration exchanger, an axial flow fan, a variable-diameter air duct and an air collection box. The condensing system is composed of cool air passages, cool air passage partitions, water collection and air guide blades, dry and hot air discharge holes, heat exchange and condensation partitions, damp and hot saturated gas passages, water distribution and collection tanks, a water collection tank and a water tank. The air intake regulating device is composed of a planar plugging plate, a support, a hinge shaft, air outtake regulating plates, a regulating rod and regulating nuts. All the above components are combined to form the cooling tower fog dispersal and water collection device. The requirements on technical difficulty in fog dispersal and water collection under air temperature conditions in different seasons and at air pressure values in different-altitude regions are met, unnecessary waste of a single power supply mode is avoided, production and use cost are lowered, and requirements of environmental protection policies for fog dispersal and water collection and energy conservation and emission reduction under the new situations are met.

The invention discloses a circular cooling tower, comprising a tower body, a condenser and an air charging device, wherein the air charging device is arranged at the bottom of the tower body and comprises pillars and flow-guiding plates, the flow-guiding plates are uniformly and alternatively arranged on the pillars and are provided with flow-guiding slots, and connection parts of the flow-guiding slots are respectively provided with a flow-guiding pipe; a spray head is arranged above a cooling pipe bundle and is connected with a circulating water pipe, a condenser is arranged at the top of the tower body, a condenser water discharging pipe is arranged at the bottom of the condenser and is connected with the circulating water pipe, and an exhaust fan is arranged above the condenser. According to the circular cooling tower, the loss of water during working process is reduced; the air charging device has large charged air amount, and the cooling effect is good; the condenser is installed in an inclined manner and is made of metals so that the heat exchange efficiency is improved, and the service life of a cool air passage is prolonged; the structure is simplified, the production technology difficulty and cost are reduced, the service life is prolonged, and the cost performance is improved; and the circular cooling tower has a simple structure and is energy-saving and environmentally friendly.

The invention discloses a method for manufacturing a prefabricated branch cable, which is implemented by after connecting a main cable and the branch cable, adopting a band-shaped material lapping with identical insulation and jacket with the original cable, then wrapping with a high temperature resistant polyfluortetraethylene band, a glass fiber band and a soft copper band, adopting coal gas flame or other methods to heat the lapping, raising the temperature until that the in insulation and jacket material inside the lapping layer is fused, cooling and processing. The insulation and jacket can be any material, and the only requirement is that the structure and material are identical with those of the cable. The insulation and jacket can be of the same material or different materials, andcan be finished in one step or multiple steps according to concrete conditions. The invention needs not to adopt an expensive large injection molding set or dies in the prior art, thus reducing production cost and improving safety and reliability.

The invention provides an anti-peeping display system based on rotary polaroids, relates to the technical field of liquid crystal display, and aims at solving the problems that in the anti-peeping display technology, the existing anti-peeping display technology is poor in anti-peeping performance and safety, large in technological difficulty and high in production cost. The system comprises the first polaroid, a first motor, a liquid crystal module, a first control module and polaroid glasses. The liquid crystal module comprises a TFT array plate, a liquid crystal box and a color filtering plate. A signal sending device is included in the first control module. The polaroid glasses comprise the second polaroid, the third polaroid, a first transmission rod, a second transmission rod, a second motor, a second control module and a polaroid manual adjusting knob. A signal receiving device is included in the second control module. The decoding difficulty of display content for a peeper is increased through the changes of the rotating speeds of the polaroids.

The invention discloses a novel high-pressure turbine of an aircraft engine. The novel high-pressure turbine comprises a plurality of turbine blades and a turbine disc, wherein a plurality of wedged grooves are formed in an outer side of the turbine disc at intervals; each wedged groove is internally provided with a wedged key, and a gap is formed between each wedged groove and the corresponding wedged key; the outer side of each wedged key is connected with two turbine blades; the outer side of each turbine blade is fixedly connected with an inner side of a turbine hoop and is limited by the turbine hoop. The turbine blades are connected with the inner side of the turbine hoop and the turbine blades are not connected with the turbine disc. In a working process, a centrifugal force of the turbine blades falls onto the turbine hoop and the turbine blades completely bear compressive stress, so that a situation that turbine blades of a traditional turbine only bear tensile stress is changed; sufficient condition guarantees are provided for popularization and application of a full-ceramic turbine blade. A combination form of the turbine blades and the turbine disc provides a sufficient free expansion space for heating of the turbine blades and heat stress of the turbine blades is reduced at maximum; impact, caused by vibration, on a turbine shaft can also be alleviated and the service life of the aircraft engine is prolonged.

The invention discloses a device and method for drawing out fibers from fiber bundles and tidily collecting the fibers. The device comprises a rack, a positioning platform, a fiber collecting platform, a telescopic platform, a clamp system and a positioning system, wherein the positioning platform, the fiber collecting platform, the telescopic platform, the clamp system and the positioning system are arranged in the rack. One end of the positioning platform is connected with one side of the rack, and the other end of the positioning platform is fixed to the other side of the rack through the positioning system. The telescopic platform is arranged at one end, connected with the positioning system, of the positioning platform. The fiber collecting platform is arranged on the lower side of the telescopic platform. A telescopic power source is further arranged in the rack, one end of the telescopic power source and the positioning platform are fixed, and the other end of the telescopic power source is connected with one end of the telescopic platform. The other end of the telescopic platform is connected with the clamp system. The method includes the steps of rack positioning and device automatic operating. The device is simple in structure and convenient to use, and the purposes of drawing out the fibers and tidily collecting the fibers in a mechanized mode can be achieved. The method will not cause any damage to the fibers and improves working efficiency.

The invention discloses a novel compressed air energy storage system comprising an electric energy storage system and an electric energy release system. The electric energy storage system comprises aplurality of air compression units, a plurality of heat exchangers I, a heat storage tank and an air storage space, and the electric energy release system comprises a first expansion unit system, a second expansion unit system and a burner system; and the first expansion unit system comprises a plurality of first expansion units and a back pressure valve, and the second expansion unit system comprises a plurality of second expansion units, a plurality of heat exchangers II, an energy storage system waste heat recycling heat exchanger, a pressure reducing valve, a gas mixing device and a generator. According to the novel compressed air energy storage system, the first expansion unit system is provided with the back pressure valve so that the first expansion unit system has the ability of sliding pressure operation; an external burner is provided for proper afterburning through the second expansion units by using pressurized exhaust as supply air, and the performance ability of compressed air flow is improved; the gas mixing device is provided, so that reutilization of waste pressure and waste heat of burner flue gas is achieved; and the system efficiency is improved greatly.

The invention discloses a branch cable comprising a main cable and a branch cable which are connected through a connector; the connection part of the main cable and the branch cable is provided with a hot melt taped covering; and a jacket layer is arranged outside the hot melt taped covering. The hot melt taped covering is formed by winding a tape made of a hot melt material. A large expensive injection molding unit and die in the prior art are not needed, and therefore, the production cost is reduced, and meanwhile, the safety and the reliability are improved.

The invention provides a silicon carbide single crystal wafer and a preparation method thereof, a silicon carbide crystal and a preparation method thereof, and a semiconductor device, the surface of the silicon carbide single crystal wafer is the surface of which the normal direction and the c direction form an included angle of 0-8 degrees, the aggregation dislocation on the silicon carbide single crystal wafer is less than 300/cm < 2 >, and the aggregation dislocation refers to that after molten KOH corrosion, the surface of the silicon carbide single crystal wafer is subjected to thermal treatment. In the obtained corrosion pits, the distance between the geometric centers of any two corrosion pits is less than 80 microns. Even if the dislocation density is relatively high, the aggregation dislocation density is also relatively low, so that the yield of the silicon carbide-based device is improved.

The invention provides a cup with a liftable inner container. The cup comprises a cup lid (1), a cup body (2) and an inner container (3) limited in the cup body (2), and is characterized in that an assembly (4) is arranged in the cup body (2), and is used for driving the inner container (3) to move up and down in the cup body (2). When the cup lid (1) is opened from an opening part of the cup body(2), the inner container (3) is driven by the assembly (4) to lift upwards; after the cup lid (1) and the cup body (2) are covered, an opening part of the inner container (3) is descent since the cuplid (1) is pressed. The inner container provided by the invention can move up and down in the cup body, and the height from the opening part of the inner container to the opening part of the cup bodycan be automatically adjusted, so that the requirement on high accuracy of an inner container height tolerance range during a production process is reduced, the production technology difficulty is reduced, and the production cost is reduced.

This invention discloses a laser device comprising: rear plano-concave lens; the incidence of light pumping source is deviated from the center of YVO4 crystal end surface by 0-2mm; under the rear lens is equipped with a rear lens regulator; under the Q-SW crystal is equipped a Q-SW crystal regulator; above the front lens is equipped a lens regulator; in front of the rear lens is equipped with a focusing unit; in front of which unit is equipped with a parallel light regulating lens; before said lens is the optical fiber splice; under said lens is the lens regulator. During the use of said device, the pumping source produces two laser resonance paths, so it can increase laser conversion, the Nd-YVO4 is heated evenly, with advantages of greater adaptive-range: 40-200mm, so lowering the difficulty of the production of the laser resonator cavity.

The invention relates to application of a polyvinylidene fluoride-trifluorochlor oethylene membrane as an oxygenation membrane. The polyvinylidene fluoride-trifluorochlor oethylene membrane is in a hollow fiber shape, the inner diameter is 200 microns, the wall thickness is 30-60 microns, the porosity is larger than 80%, the gas permeation rate is 20-200 mL/min.cm < 2 >. Bar, the water permeation pressure is 0.30-0.80 MPa, the maximum aperture is 0.01-0.10 microns, and the plasma leakage time is longer than 20 days. The oxygenation capacity is higher than that of a polymethylpentene material with a compact skin layer.

The invention introduces a cooperating pipe body structure processing technique, according to the producing technical requirements for cooperating pipe products, combining with the concrete measures to actual market demand conditions, adding interface/joint, joint/interface or stopper, moulding optional cooperating pipe body parts and assembling them into cooperating pipe products, and forming a concrete method for moulding cooperating pipe body parts and a concrete method for assembling cooperating pipe products, thus making cooperating pipe body structure, cooperating height, and cooperating height allowable range be optional. And this solution can reduce the technical difficulty and cost in producing cooperating pipe products, able to broaden the use region and application domain of the cooperating pipe products, having remarkable function and significance of perfecting and standardizing cooperating pipes, pressure auto control valves, and water feed and discharge practical technique.