22results about How to "Easy material selection" patented technology

The utility model provides a broadband silencer and an engine air inlet system. The broadband silencer comprises an air inlet pipe, an air outlet pipe, a silencer shell connected between the air inlet pipe and the air outlet pipe, and a resonance sound absorption structure arranged in the silencer shell. The resonance sound absorption structure is made of an elastic vibration material and is configured to be tubular; the resonance sound absorption structure is connected between the air inlet pipe and the air outlet pipe and forms an air inlet channel together with the air inlet pipe and the air outlet pipe. The inner diameter of the silencer shell is larger than the outer diameter of the resonance sound absorption structure, and a silencing cavity is formed between the silencer shell and the resonance sound absorption structure. According to the broadband silencer, elastic vibration of the resonance sound absorption structure enables the silencing cavity to form a resonance cavity, energy of noise is converted into vibration kinetic energy, and therefore the silencing performance of the broadband silencer can be improved.

The utility model discloses a compressed natural gas unloading pry utilizing solar energy, which comprises a box body, two paths of heating, pressure regulating and metering devices are arranged in the box body, and two unloading columns are arranged on one side of the box body. The compressed natural gas unloading pry can effectively solve the problems that the compressed natural gas unloading pry selects and utilizes heat sources, distribution of temperature and pressure, control of return pressure, prevention of gas leakage and the like, so that the compressed natural gas unloading pry is more energy-saving and environment-friendly when being used; and meanwhile, the stability of the water and electricity dual-purpose two-stage heat exchanger in the box body can be fully guaranteed, so that the safety and the stability of the compressed natural gas unloading pry are guaranteed.

The invention discloses automatic equipment for low-temperature crushing of a pseudo-ginseng powder material, and relates to the technical field of crushing processing. Automatic equipment for low-temperature crushing of pseudo-ginseng powder materials comprises a front end assembly for crushing the pseudo-ginseng powder materials and a rear end assembly for screening finished pseudo-ginseng powder materials, the front end assembly comprises a coarse crushing machine for coarse crushing of the pseudo-ginseng powder materials and a crushing main machine for crushing of the pseudo-ginseng powder materials, and the crushing main machine comprises a base; an air inlet bin assembly is arranged above the base and comprises a first bin cylinder fixedly connected to the base, one side of the first bin cylinder fixedly communicates with a first bin pipe, a smashing bin assembly is arranged above the air inlet bin assembly and comprises a second bin cylinder fixedly connected with the first bin cylinder, and one side of the second bin cylinder fixedly communicates with a second bin pipe. The automatic equipment for low-temperature crushing of the pseudo-ginseng powder material is high in classification efficiency, effectively avoids over-crushing of the material, and saves energy consumption.

The invention discloses an intelligent design method for an overhead power transmission line foundation, which belongs to the technical field of power transmission engineering, and comprises the following steps: automatically extracting information such as tower positioning and meteorological data in a three-dimensional line model, carrying out intelligent calculation on tower load of the whole line, and generating line hanging point load of tower position by tower position; furthermore, internal force of all rods is calculated based on tower finite element analysis, basic acting force files of all tower legs of all nominal heights are formed, in the aspect of basic design, batch import of geological data, intelligent merging of basic acting force and construction and optimization design of a universal basic library are achieved, and therefore the design process is simplified, and the design precision and efficiency are improved. According to the method, the data of the towers in the three-dimensional line model can be extracted, and intelligent calculation and lean output of the loads of the towers on the whole line can be carried out in combination with the use conditions of the towers.

The application discloses a fuse tinning device and method, wherein the fuse tinning device comprises a fuse melting substrate placing rack for placing a fuse melting substrate; a tin strip placing rack for placing a tin strip; the tin strip placing rack is arranged above the fuse melting substrate placing rack; a flux pool for storing flux; a flux roller is further arranged above the flux pool, and the flux roller applies flux to one side of the tin strip which faces the fuse melting substrate when the tin strip passes through the surface of the flux roller; a pressing roller is further arranged behind the flux pool, and the pressing roller presses the tin strip coated with flux and the fuse melting substrate; a reflow oven is further arranged behind the pressing roller, and the reflow oven fuses the tin strip and the fuse melting substrate by adjusting temperature; and a winding device is further arranged behind the reflow oven, and the winding device winds the tin strip and the fuse melting substrate after fusion.

The present application relates to the field of control valves, and specifically to a control structure of a hydraulically balanced regulating valve cover, which is used for convenient adjustment of the hydraulically balanced regulating valve cover, and includes a valve cover for providing overall installation and support, wherein: an adjusting rod for adjusting the hydraulic balance is provided in a cavity inside the valve cover, and a first inlet and a second inlet are respectively connected on both sides of the cavity, and fluid is input into the cavity of the valve cover along the first inlet and the second inlet to control the position of the adjusting rod; it has a simple structure, and the upper and lower ends of the adjusting rod are respectively connected to the fluid, and the outward thrust of the adjusting rod is offset by the fluid to reduce the thread friction at the adjusting screw, thereby avoiding the effect of the situation in the prior art where the pressure at the adjusting rod is relatively high and it is inconvenient to adjust.

The invention discloses a universal single-pile vertical uplift load static load detection method. The method comprises the steps that firstly, a supporting pier or a counter-force pile, a main beam, a jack and a top long anchorage device are installed; according to test pile types of different types or manufacturers, appropriate top length anchorage devices and anti-pulling connecting devices are selected; connecting the top long anchorage device with the anti-pulling connector below by adopting rigid connecting pieces, namely threaded steel and a threaded sleeve; the anti-pulling connecting tool is connected with the test pile below through a flexible connecting piece, and threaded holes in the end plate of the test pile are connected through high-strength screws; finally, one end of the steel strand is fixed to the anti-pulling connecting tool through a steel strand and steel strand connector, and the other end of the steel strand is connected through a steel strand-to-high-strength screw working connector; two sides of the test pile are respectively provided with an instrument and a datum beam; and detecting according to construction requirements. According to the detection method, the design is carried out for static load anti-pulling tests of all cast-in-place piles and precast piles, one set of universal anchorage device is used for detecting the anti-pulling piles of different pile types, and the detection efficiency is improved.

This invention discloses a method for detecting the adhesive color of Mini-LED beads, comprising the following steps: S1: Under fixed ambient light conditions, acquiring a first image of the Mini-LED bead to be tested after surface magnification before reflow treatment, and a second image of the Mini-LED bead to be tested after surface magnification after reflow treatment; S2: Restoring the Mini-LED bead to be tested from the first and second images; S3: Performing color analysis on the restored first and second images to obtain the first chromaticity value of the Mini-LED bead before reflow treatment and the second chromaticity value after reflow treatment; S4: Calculating the difference between the first and second chromaticity values ​​to determine whether the surface adhesive color of the Mini-LED bead is qualified based on the difference. This method for detecting the adhesive color of Mini-LED beads can automatically identify the surface adhesive color at the Mini-LED bead level and screen Mini-LED beads from the source, thereby improving the display effect of subsequent displays.

The utility model provides a kind of direct drive torque motor, the direct drive torque motor includes motor casing, is arranged in the motor casing one end and is fixed with the motor casing base, with the base fixed end cover, the motor casing is provided with cooling flow channel, the axial of the end cover is provided with flow channel entrance and / or flow channel exit, the axial of the end cover, the base is provided with through entering flow channel and discharge flow channel, the flow channel entrance, the entering flow channel, the cooling flow channel, the discharge flow channel and the flow channel exit are connected to form communication passage.The direct drive torque motor of the utility model, by setting flow channel entrance and / or flow channel exit on end cover, thereby as far as possible reduce the radial space occupation of load end and direct drive torque motor, and have more direct more efficient heat dissipation path.

According to the thermal power station circulating cooling water waste heat recycling system and the working method thereof, waste heat generated by cooling of thermal power station equipment is used for heating raw water or desalted water, the water production capacity of the desalted water is improved, and circulating water pollution discharge is reduced. The coagulative precipitation tank, the filter tank and the water storage tank are sequentially connected, and a temperature detector is mounted on a water inlet pipe of the filter tank; the water storage tank is respectively connected with the production water supply system, the desalted water production system and the desalted circulating water supply pipe; the water outlet by-pass pipe is connected with the coagulative precipitation tank and the cooling tower, the water return by-pass pipe is connected with the coagulative precipitation tank and the circulating water return main pipe, and the water outlet by-pass pipe and the water return by-pass pipe are respectively provided with a temperature detector and a regulating valve; the desalted water circulating water return pipe is connected with the desalted water production system and the circulating water return main pipe; the desalting circulating water supply pipe is connected with the circulating water supply main pipe; isolating valves are mounted on the desalting circulating water supply pipe, the desalting circulating water return pipe, the circulating water supply main pipe and the circulating water return main pipe.

This invention discloses an automated equipment for low-temperature pulverization of Panax notoginseng powder, relating to the field of pulverization processing technology. The automated equipment includes a front-end component for crushing Panax notoginseng powder and a rear-end component for screening the finished product. The front-end component includes a coarse crusher for coarse crushing of the Panax notoginseng powder and a pulverizing host for pulverizing the Panax notoginseng powder. The pulverizing host includes a base, and an air inlet assembly is mounted above the base. The air inlet assembly includes a first chamber fixedly connected to the base, with a first chamber pipe fixedly connected to one side of the first chamber. A pulverizing chamber assembly is mounted above the air inlet assembly, including a second chamber fixedly connected to the first chamber, with a second chamber pipe fixedly connected to one side of the second chamber. A pulverizing component is located in the lower part of the pulverizing chamber assembly. This automated equipment for low-temperature pulverization of Panax notoginseng powder has high grading efficiency, effectively avoids over-pulverization of materials, and saves energy.

The utility model discloses a subway shield segment horizontal assembly inspection base which comprises an annular supporting table formed by splicing four sets of arc-shaped single assemblies, each single assembly comprises an arc-shaped plane steel plate and arc-shaped steel plates welded to the two sides, and I-shaped steel is arranged between the arc-shaped plane steel plates and the arc-shaped steel plates. The utility model relates to the technical field of segment splicing detection, adopts a mode of splicing four groups of arc-shaped single components to form an annular support table, and is simple in structure and convenient to operate; each single component is formed by welding the arc-shaped plane steel plate, the arc-shaped steel plates on the two sides and the I-shaped steel, material selection is convenient, and cost is low; the leveling assembly is arranged at the lower end of the single assembly, rapid leveling of the base can be achieved, and the working efficiency of the three-ring test is improved; the upper end face of the arc-shaped plane steel plate is provided with an inner diameter positioning line used for positioning the duct pieces, so that the duct pieces can be quickly positioned and calibrated, and the duct piece splicing operation efficiency is improved.

The invention belongs to a simulation device, and particularly relates to a double-end crevasse simulation device for a pipeline. The double-end crevasse simulation device for the pipeline comprises a forged four-way joint arranged in the center, the front end and the rear end of the forged four-way joint are each provided with a sealing assembly, and each sealing assembly is connected with the forged four-way joint through a pressing crevasse assembly. The invention has the remarkable effects of simple structural design, convenience in material selection, easiness in processing and manufacturing and low manufacturing cost; the crevasse simulation piece is adjacent to the inner wall surface of the main pipeline, so that a crevasse simulation experiment is closer to reality, data measured by the crevasse experiment are more accurate, and the crevasse simulation piece has more practical significance; tests of various crevasse sizes can be realized by replacing crevasse simulators of different sizes, and the crevasse simulator is convenient to operate, free of complex structures and high in universality; the crevasse simulation piece is easy to process; the sealing element is easy to purchase and replace; the device can be used for research of pipeline crevasse tests in nuclear power, chemical industry, petrochemical industry and other industries, and crevasse tests of various media can be achieved by replacing materials.

The utility model provides a microwave metal bolt plastic packaging structure, which relates to the technical field of bolt plastic packaging and comprises a plastic packaging structure and a metal bolt. An outer frame is arranged outside the plastic packaging structure, a middle installation frame is arranged in the outer frame, four sets of inner sleeve frames are arranged in the middle installation frame, a packaging center area is arranged among the four sets of inner sleeve frames, the four sets of inner sleeve frames are of a central symmetry structure relative to the packaging center area, and metal bolts are installed in the packaging center area. The metal bolt is of a detachable structure; the plastic packaging structure is made of a PVC plastic material, and the plastic packaging structure is a square packaging structure. And an inner connecting sheet is arranged in the packaging central area. According to the utility model, the microwave metal bolt is packaged by adopting a plastic material, so that the manufacturing and loss costs are low, the assembling and forming are convenient and rapid, the packaging is simpler, the outward heat dissipation is faster, and the microwave metal bolt is more economical, convenient and practical.

The invention discloses a super-fluffy warm-keeping polyester fiber and a preparation method thereof.The preparation method comprises the following steps that spinning raw materials including super-bright polyester chips and graphene master batches are prepared; performing extrusion molding on the spinning raw materials through a spinneret plate; the spinneret plate is provided with a plurality of spinneret units, and each spinneret unit comprises a plurality of first runners and a plurality of second runners; the first flow channel comprises a first arc section and two first bent sections connected to the outer diameter of the first arc section, and the second flow channel comprises a second arc section and two second bent sections connected to the outer diameter of the second arc section; the width of the second arc section is larger than that of the first arc section, and the width of the second bent section is larger than that of the first bent section. Cooling air blowing is carried out on the side, provided with the first flow channel, of the spinneret plate; and carrying out high-speed oriented spinning stretching and winding forming on the extruded, cooled and formed tows to obtain the super-fluffy warm-keeping polyester fiber. The polyester fiber prepared by the preparation method is good in fluffiness, good in heat retention property, capable of resisting static electricity and relatively low in price.

The utility model discloses a novel heating device which comprises a support, a coil pipe set and a straight pipe set. The support comprises a group of square-shaped frames arranged at intervals, the square-shaped frames are connected through supporting rods to form a frame type structure, the coil pipe set comprises a plurality of coil pipe parts which are connected and arranged in the support side by side, and the coil pipe parts are located at the ends of the support and communicated with the straight pipe set. The straight pipe set is provided with a fixing part fixed to the wall face, and the straight pipe set extends upwards to the upper portion of the wall face and then extends along the wall corner. The system further comprises heating equipment, and the straight pipe set is arranged along the room and then connected with the heating equipment. The support is arranged on the wall face, the coil pipe sets are arranged on the inner side of the support side by side and matched with the straight pipe parts extending along the wall corner to form the overall structure, the overall structure is simple and convenient to arrange, material selection is simple, layout is reasonable, and heating is achieved through combination of the coil pipe sets and the straight pipe parts.

The invention belongs to the technical field of Chinese gall leaven, and particularly relates to a processing method of Wu characteristic Chinese gall leaven. The processing method comprises the following steps: dispersing nano-particles in a coating material to obtain a nano-material coating solution; putting the new tea into the nano-material coating solution, fully soaking, and drying after coating to obtain coated tea leaves; the coated tea leaves are subjected to illumination, and the illuminated tea leaves are obtained; aging the illuminated tea leaves to obtain aged tea leaves; taking the aged tea leaves, adding water to decoct for several times, after decoction is completed, combining filtrate, filtering to obtain clear filtrate, cooling, adding vinasse and gallnut powder to obtain a mixture, adding water, stirring with the mixture to form soft blocks, fermenting, taking out when white hair is spread, drying, and cutting into blocks to obtain the Chinese gall leaven. The method can improve the content of index components of the Chinese gall leaven.

The utility model belongs to the technical field of gas pipeline conveying, and particularly relates to an under-pressure leaking stoppage device of a gas pipeline ripple compensator. Comprising a supporting part, a base plate and a pressing and covering plate, pressing bolts are arranged on the base plate and abut against the pressing and covering plate, the pressing bolts are symmetrically arranged on the supporting part and the two sides of a corrugated pipe at the electric leakage position, the base plate is arranged between the supporting part and the corrugated pipe and abuts against the supporting part, and a regulation and control supporting piece is arranged on the base plate. The adjusting and controlling supporting piece is used for adjusting the distance between the base plate and the pressing and covering plate and fixing the pressing and covering plate. The base plate is placed between the fixing rod and the corrugated pipe, the fixing rod is used as a supporting point, the sealing silica gel layer and the pressing and covering plate are buckled on a leakage point, the supporting bolt and the pressing bolt are fastened, the pressing and covering plate is pressed, the leakage point of the corrugated pipe can be blocked, the steel plate and the pressing and covering plate have no special requirements, the manufacturing process is simple, material selection is convenient, and the cost is low. And the under-pressure leaking stoppage effect is good.

This utility model relates to an ultra-large diameter interchangeable roughing and finishing boring integrated device that can realize roughing and finishing of ultra-large diameter inner holes of different specifications. It includes a roughing and finishing boring body, a tool body connecting shank, a keyway box, a finishing boring tool box, a finishing boring cover, a roughing boring tool head, and a wooden guide key. These seven parts are assembled using screws, T-bolts, washers, and nuts. The wooden guide key is installed in the keyway box 1, and the roughing boring tool head's square groove is fitted with... Insert the rough boring tool, adjust the dimensions, and tighten the rough boring tool with screws. After adjusting the dimensions, install the finish boring tool into the tool slot of the finish boring tool box. Connect this device to the tool holder. The spindle rotates, and the tool holder drives the integrated rough and finish boring device to make linear motion, realizing one-time clamping and machining of the inner hole rough and finish boring. The keyway box, finish boring cover, and finish boring tool box can be replaced according to the hole diameter, so as to perform rough and finish boring of inner holes with different diameters.

The utility model discloses a novel piston type energy accumulator, belongs to the field of energy accumulators, and solves the problem that an existing energy accumulator is inconvenient to select materials and process. The hydraulic cylinder comprises a cylinder sleeve, an upper end cover and a lower end cover are arranged at the two ends of the cylinder sleeve respectively, the lower end cover is detachably connected with the cylinder sleeve, a piston is installed in the cylinder sleeve in a sliding mode, a limiting step is arranged on the inner wall of the end, close to the upper end cover, of the cylinder sleeve, and the upper end cover comprises a round cover and a limiting flange. The limiting flange is arranged on the outer wall of the round cover in a surrounding mode, the round cover is movably connected in a center hole formed in the inner side wall of the limiting step in an inserted mode, the limiting flange is connected in the cylinder sleeve in a sliding and inserted mode, the limiting flange is connected to the limiting step in a clamped mode, and a first sealing ring is arranged between the limiting flange and the inner wall of the cylinder sleeve. The piston type energy accumulator provided by the utility model has the characteristics of convenience in material selection and processing while meeting the use requirements of the energy accumulator.

The application discloses a kind of low profile multi-mode waveguide absorption load, belong to microwave technical field.The load includes metal shell, medium water storage cavity and absorption array;Metal shell is the cylindrical metal structure of bottom closed, cladding load back side to prevent electromagnetic wave back end leakage;Medium water storage cavity is coaxially nested in shell, inside filling cooling liquid and being equipped with water inlet and outlet;Absorption array uses periodic arrangement absorption unit, outer surface is regular quadrangular prism structure, inner surface is multistage ladder regular quadrangular prism structure, bottom and medium water storage cavity are communicated.The application is realized in compact structure by two-stage impedance conversion and multilayer electromagnetic loss synergistic superposition, and has wide frequency band, high absorption rate, mode insensitive characteristics to fundamental mode and various high-order mode, while overall presents low profile, small volume, lightweight advantage, easy to scale production.