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51results about How to "Effective work" patented technology

Two-stage asymmetrical composite parabolic reflector condenser in smooth transition connection

The invention relates to a two-stage asymmetrical composite parabolic reflector condenser in smooth transition connection, which comprises an upper-stage parabolic reflector and a lower-stage parabolic reflector, wherein the lower-stage parabolic reflector comprises axial symmetrical parabolic reflectors; the upper-stage parabolic reflector comprises asymmetrical parabolic reflectors; the profile parabola principal axes of the upper-stage parabolic reflector and the lower-stage parabolic reflector are positioned in the same axis position; the absorption end width of the upper-stage parabolic reflector and the open end width of the lower-stage parabolic reflector are equal; the upper-stage parabolic reflector and the lower-stage parabolic reflector adopt the smooth connection processing; the upper-stage parabolic reflector comprises parabolas at the left and right sides; and the received half-angle sine value ratio of the parabolas at the left and right sides is equal to the solar radiation intensity ratio of the region in spring and winter. The two-stage asymmetrical composite parabolic reflector condenser provided by the invention can effectively reduce the optical radiation energy loss, widely receive solar rays and has good season adaptability.
Owner:ZHEJIANG UNIV OF TECH

Sea surface adaptive observation platform device

ActiveCN106882336AImprove damping abilityHas self-righting propertiesSpecial purpose vesselsAnchoring arrangementsMarine engineeringOptical measurements
The invention discloses a sea surface adaptive observation platform device, and belongs to the technical field of ocean engineering and ocean environment detection. The observation platform device comprises a platform deck, an observation mechanism, a first-stage swing reducing and self-righting mechanism and a second-stage swing reducing mechanism. A lower supporting rod is connected with a balance weight cabin and a buoyancy cabin, and an upper supporting rod is inserted in a sleeve of the buoyancy cabin to be fixed. The upper end of a wing-type support is connected to the platform deck, the lower end of the wing-type support is connected to a fan-shaped floating cabin, the upper supporting rod is connected with a water tray, water is added in the water tray, and a combination of the fan-shaped floating cabin, the wing-type support, the platform deck and the observation mechanism floats in the water in the water tray. The center of buoyancy of the observation platform device is located above the centre of gravity all the time, and the sea level is located at the upper middle position of the buoyancy cabin and the water tray. The observation platform device is simple in structure, convenient to use, high in stability, high in swing resisting and swing reducing capability, capable of saving energy and small in maintenance workload, and can carry optical measurement instruments or other monitoring and detecting instruments.
Owner:DALIAN UNIV OF TECH

Large plate-shaped body packaging box

The invention provides a large plate-shaped body packaging box, a method for transporting plate-shaped bodies by using the plate-shaped body packaging box, a method for loading the plate-shaped bodies, and a method for taking the plate-shaped bodies out. Dust is prevented from invading the packaging box, height during conveying is reduced, the packaging box can be easily stored in a storage room with a low top, and the plate-shaped bodies are efficiently and stably stored and transported. The plate-shaped body packaging box comprises a pedestal (3) with a veneer material, a plate-shaped body packaging box body (1) loaded on the pedestal (3), and an upper cover (2) which encircles the plate-shaped bodies (4) loaded on the pedestal (3) and can be assembled and disassembled relative to the pedestal (3), wherein the pedestal (3) is a supporting body with an open upper surface and comprises plate-shaped body protection materials (6) and side plates (14 and 15), a plurality of plate-shaped bodies (4) are fixed on the upper surface of the veneer material (5) in an approximately horizontally laminated state, and the side plates (14 and 15) are arranged on two sides in an L shape in the four sides; and the upper cover (2) consists of a top cover (13) which covers the upper surface of the plate-shaped body packaging box body (1) and side covers (12) on the four sides, has a shape of a box body with an open lower surface, and is provided with pressing pieces (7) which press the upper parts of the plate-shaped bodies.
Owner:ASAHI GLASS CO LTD

Laser head used for laser welding and facilitating to multi-directionally adjust angle

The invention discloses a laser head used for laser welding and facilitating to multi-directionally adjust an angle, relates to the technical field of welding, and specifically discloses a laser headused for laser welding and facilitating to multi-directionally adjust an angle. The laser head used for laser welding and facilitating to multi-directionally adjust the angle comprises a slide rail, an inner gear sleeve and a main gas pipe, wherein a slide block is installed at the middle part of the slide rail, and a stainless steel housing is installed above the slide block; a support rod is installed above the inner gear sleeve, and the inner gear sleeve is located above the stainless steel housing; and a servo motor is installed above the support rod. According to the laser head used for laser welding and facilitating to multi-directionally adjust the angle, through the cooperation among a compressor, the main gas pipe and a gas blowing pipe, inert gas in a gas storage tank can be effectively guided into the gas blowing pipe; when the laser head applies work on a workpiece, the gas blowing pipe blows the inert gas to a welding part of the workpiece, and the problem that the weldingpart of the workpiece is infirm and incapable of achieving the needed working effect because the welding part of the workpiece is rapidly oxidized, and impurities are easily generated at the weldingpart, is avoided.
Owner:四会市耀华精密机械有限公司

Intermittent shaft bottom pressure difference reduction sub

InactiveCN104895507AImprove jet pressure reduction effectImprove rock breaking abilityDrilling rodsDrilling casingsWater flowEngineering
The invention discloses an intermittent shaft bottom pressure difference reduction sub. The sub comprises an outer cylinder, a drill rod joint, a spring and a circular piston. A through axle hole is formed in the outer cylinder axially, the upper end of the outer cylinder is connected with the drill rod joint, part of the drill rod joint is inserted in the axle hole, and a water flow channel is formed in the center of the drill rod joint axially. The spring and the circular piston are sleeved on the lower portion of the drill rod joint and capable of moving along the axis vertically, the upper end of the spring is connected with the drill rod joint, and the lower end of the spring is connected with the upper end of the circular piston. Pressure release holes and reverse nozzles are formed in the side wall of the outer cylinder, the pressure release holes are communicated with a chamber, the upper end of the circular piston is subjected to external annular pressure, the lower end of the circular piston is subjected to drilling liquid pressure in the axial hole, and the reverse nozzles are communicated with the axle hole when the circular piston moves upwards for certain distance under the action of the pressure difference on the upper and lower ends. By means of the sub, the shaft bottom pressure difference reduction effect can be improved, the drilling speed of drilling machinery is improved, and the shaft bottom cleaning auxiliary rock fracture capacity of bit nozzles is improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Port logistics park combined with underground logistics system

The invention discloses a port logistics park combined with an underground logistics system. The port logistics park comprises an underground cargo loading and unloading area and the like; the underground cargo loading and unloading area includes two parts, namely, the ground part and the over-ground part, so that ground and underground operations are closely combined, and effective connection oflines between a port and the logistics park is realized; and a temporary storage yard and an underground logistics access are arranged above the ground, so that port containers an e conveyed to an over-ground logistics park in sequence. A deep-layer underground logistics passage is arranged below the underground cargo loading and unloading area and is 40-50 m below the ground; a gantry crane is arranged above the underground logistics passage, and the civil engineering cost, the transportation cost and the park ground area for ramp transportation can be saved through vertically upwards hangingof containers; and the deep-layer underground logistics passage, a shallow-layer underground logistics passage and a ground passage are designed, so that effective connection and multi-mode combinedtransportation among the port logistics park, the port and the urban area can be realized through multiple passage combined transportation.
Owner:SHANGHAI MARITIME UNIVERSITY

Preparation of recyclable high-density liquid rubber plug and degradation prediction method of recyclable high-density liquid rubber plug

InactiveCN111205836ADensity does not affectThe density does not affect the performance of the rubber stopper while improvingMaterial heat developmentDrilling compositionPolymer scienceCross linker
The invention provides preparation of a recyclable high-density liquid rubber plug and a degradation prediction method of the recyclable high-density liquid rubber plug, and relates to the field of oil-gas chemical engineering. The recyclable high-density liquid rubber plug is mainly prepared from the following components in percentage by mass through a cross-linking reaction: 30-90% of a weighting agent, 0.01-0.03% of a stabilizer, 0.2-0.6% of a reinforcing material, 1.5-2.0% of a polymer, 0.5-0.6% of a cross-linking agent, and the balance water, wherein the ratio of the polymer to the cross-linking agent is 3: 1. The recyclable high-density liquid rubber plug is prepared from the raw materials, the density is 1.2-1.5 g / cm < 3 >, and the recyclable high-density liquid rubber plug has theadvantages of being good in pumping performance, resistant to temperature, free of rubber breaking, efficient in circulating flowback and the like. Degradation time of different rubber plug systems under different temperature conditions is predicted by establishing a degradation prediction linear regression equation model of the recyclable high-density liquid rubber plug, a flowback process is guided, and safety, effectiveness and smoothness of well completion and workover operation of oil-gas wells are guaranteed.
Owner:SOUTHWEST PETROLEUM UNIV

10KV-circuit combined ladder stand

InactiveCN104131778AConvenience for equal height workFlexible useLaddersFixed ladderFrost
The invention relates to a 10KV-circuit combined ladder stand which comprises a ladder body and a connecting piece. One end of the ladder body is provided with insertion sheets. The other end of the ladder body is provided with slots and lock pins. The slots are matched with the insertion sheets in shape. According to the structure of the connecting piece, an electric pole fixing clamp is arranged to be of a circular arc shape, the two ends of the circular arc of the circular-arc-shaped electric pole fixing clamp are provided with connecting plates, the connecting plates are connected with a connecting plate of a movable clamp I and a connecting plate of a movable clamp II in a rotating mode through connecting shafts respectively, a body connecting plate is arranged outside the circular arc of the circular-arc-shaped electric pole fixing clamp, and the body connecting plate is fixed to the ladder body through the lock pins. The 10KV-circuit combined ladder stand can be used safely on special conditions of freeze, rain, snow and frost, enables circuit operation to be smooth, safe and effective and provides a special safety guarantee for an operator on a pole; besides, the 10KV-circuit combined ladder stand lowers cost, eliminates harm to staff, livestock and the like when a fixed ladder stand is too low, and has popularizing value.
Owner:STATE GRID CORP OF CHINA +1

Racing car spoiler and racing car

The invention provides a racing car tail wing and a racing car, and belongs to the technical field of aerodynamics. The racing car tail wing comprises a main wing plate, side wing plates, a cylinder and a driving mechanism, wherein the main wing plate comprises a first arc-shaped curved surface, a second arc-shaped curved surface and a transition arc surface smoothly connected to the front ends ofthe first arc-shaped curved surface and the second arc-shaped curved surface, the curvature of the first arc-shaped curved surface is smaller than that of the second arc-shaped curved surface, and arotating cavity with slits in the upper portion and the lower portion is formed in the front end of the main wing plate; the side wing plates are symmetrically arranged at the left end and the right end of the main wing plate; the cylinder is arranged in the rotating cavity, the center line of the cylinder coincides with the center line of the rotating cavity, and the upper arc face and the lowerarc face of the cylinder protrude out of the corresponding first arc-shaped curved surface and the second arc-shaped curved surface through the corresponding slots. The driving mechanism is connectedwith the cylinder and used for driving the cylinder to rotate. According to the racing car tail wing, the wheel road holding effect can be improved, and the effective work of a propelling system is improved.
Owner:SHIJIAZHUANG TIEDAO UNIV

Concrete delivery system and concrete delivery vehicle with the delivery system

ActiveCN104947675BPouring realizationIncrease the effective construction rangeGround-workFoundation engineeringConveyor beltHinge joint
The invention relates to a concrete conveying system and a concrete transport vehicle with the same. The concrete conveying system mainly comprises a rotating support. The rotating support is fixedly connected with a tail portion supporting frame. The front end of the tail portion supporting frame is hinged to a hydraulic crane boom. The upper end of the tail portion supporting frame is hinged to a load-bearing beam. The hydraulic crane boom drives the load-bearing beam to rotate with the hinge joint of the load-bearing beam and the tail portion supporting frame as the circle center. The load-bearing beam carries a conveyor belt through an upper portion supporting beam. The conveyor belt is driven by a driving wheel and a driven wheel on the upper supporting frame to move. The end of the upper portion supporting frame is fixedly connected with a concrete guiding and pouring device which comprises a pouring guide pipe. The discharge port of the pouring guide pipe is lower than the conveyor belt so that concrete on the construction face lower than the horizontal face can be conveyed. By means of the transport vehicle, the construction progress of on-site concrete pouring can be accelerated, and the workability of concrete in the pouring period can be ensured.
Owner:SHANDONG UNIV +1

Sludge treatment system and process

The invention discloses a sludge treatment system and a process. Sludge paste with the moisture content of 50% to 60% can be obtained by adopting a slurry hopper and a press filter and can be dried into clods with the moisture content of 40% or less through a drying unit. A drying room and a hot air supply circulating mechanism can exert a relatively good drying effect, an extruding mechanism anda circulating conveying mechanism are combined, and thus, materials are uniformly tiled and heated and are uniformly dried. According to the sludge treatment system and the process, sludge can be thickened and dehydrated, the volume weight of the sludge is greatly reduced, the decrement of the sludge is achieved, and the pollution caused by liquid permeation and odor emission is eliminated. By designing the hot air supply circulating mechanism, the operation of an evaporator can be effective, a circulating hot air supply is relatively dry, the materials in the drying room can be deeply dehumidified, the effect is remarkable, the loss of heat energy caused by hot-cold offset is lowered, and the utilization ratio of energy is increased. The circulating conveying mechanism is ingeniously designed, the circulation of the circulating hot air supply is facilitated, the materials are heated and dried uniformly, the space usage is relatively low, and thus, the requirements of materials on a thorough drying course in a limited space are met.
Owner:江苏同益能源科技有限公司

A laser head for multi-directional angle adjustment for laser welding

The invention discloses a laser head for multi-directional angle adjustment for laser welding, which relates to the field of welding technology, in particular to a laser head for multi-directional angle adjustment for laser welding, including a slide rail, an inner tooth sleeve and a main air pipe. A slide block is installed in the middle of the slide rail, and a stainless steel shell is installed above the slide block, a strut is installed above the inner gear sleeve, and the internal gear sleeve is located above the stainless steel shell, and a stainless steel shell is installed above the strut There are servo motors. This laser welding uses a laser head that is convenient for multi-directional adjustment of the angle. Through the cooperation between the compressor, the main air pipe, and the blowing pipe, the inert gas inside the gas storage tank can be effectively introduced into the inside of the blowing pipe. When the laser head is on the workpiece When doing work, the blowing pipe blows the inert gas to the welding part of the workpiece to prevent the rapid oxidation of the welding part of the workpiece, and it is easy to generate impurities in the welding part, resulting in the weak welding part of the workpiece and failing to achieve the required working effect.
Owner:四会市耀华精密机械有限公司

Coal seam gas well washing tool passing through glass fiber reinforced plastics screen pipe and method

The invention discloses a coal seam gas well washing tool passing through a glass fiber reinforced plastics screen pipe. The coal seam gas well washing tool passing through the glass fiber reinforcedplastics screen pipe comprises a washpipe, a jet-flow vibration nozzle, a waterpower blocking type spraying nozzle, a pressure adjuster and a guide head. The washpipe is arranged at the center of theglass fiber reinforced plastics screen pipe. A first elastic centering sleeve is arranged between the washpipe and the glass fiber reinforced plastics screen pipe. The washpipe is sequentially connected with the jet-flow vibration nozzle, the waterpower blocking type spraying nozzle, the pressure adjuster and the guide head. According to the coal seam gas well washing of the screen pipe, due to alarge gap of the screen pipe, the flow speed of high pressure fluid released by the washing tool lowers after the high pressure fluid passes through the screen pipe, and therefore corresponding washing effect can not be achieved. During the cleaning process, fluid space can be shrunk and extruded by movement of a waterpower blocking ring and a movable pressing sleeve, and therefore the speed of the fluid flowing through the gas of the screen pipe increases, and cleaning effect is improved. In addition, the jet cleaning effect is improved by pressure pulse mechanism. A vibration cavity is formed in a nozzle mounting body, and the cleaning effect can be improved by pressure pulse generated by the vibration cavity.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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