282results about How to "Solve support problems" patented technology

The invention provides a gas-steam combined cycle power generation system and aims at combined cycle power generation of a SGT6-500 gas turbine to conduct mating redesign on a main engine and an auxiliary engine such as a waste heat furnace and a turbonator. A gas-steam combined cycle which is composed of a new integrated system not only solves the mating problem with the SGT6-500 gas turbine, but also solves the problem that a power generation system works under 60 Hz power system frequency.

The invention discloses a deep foundation pit combination supporting construction method for geology with high water level and large particle size sand gravel. High pressure jet grouting pile construction is conducted outside a foundation ditch retaining and protecting system, by means of a triple placing method, cement paste is injected into underground soil filling layer and sand gravel gaps, after solidifying, secant pile wall and retention wall are formed, the underground water is prevented outside the periphery the foundation ditch retaining and protecting system, and conditions are created for the construction of a support pile; when the strength of outer side jet grouting pile meets design requirements, a long auger drilling cast-in place pile begin to be constructed close to the inner side of the jet grouting pile; after perfusion pile beings maintained for 15 days, jet grouting pile construction begins to conduct to make up partial failure of waterproof curtain of the jet grouting pile in construction of retaining and protecting pile, and retaining and protecting strength and water interception effect of the retaining and protecting system are increased; at last, in an earth excavation process, bar-mat reinforcement sprayed concrete slope protection and construction of dewatering well, open trench and water-collecting well in the foundation ditch are completed well, multiple retaining and protecting forms are used for combining construction and interaction. Accordingly, the problems of retaining and protecting the geology with high water level and large particle size sand gravel and processing the geology are solved.

The invention discloses a supporting method for the construction of a swirl well. By using the supporting method, thin and long rod piece soil nails which are more densely arrayed are placed into an in-situ soil body in a foundation pit excavation process and a reinforced concrete pavement layer is sprayed on a slope surface. A composite soil body is formed by the common work of the soil nails, the soil body and the sprayed concrete pavement layer. A construction of the swirl well supported by a soil nail well comprises the following steps of: excavating one section of the base groove of the swirl well according to a small sloping coefficient; drilling holes by utilizing a drilling machine and putting an anchor rod; grouting and blocking; suspending a steel bar net sheet and spraying fine stone concrete to form a foundation side wall; gradually excavating and gradually carrying out combined bolting and shotcrete on the soil nails until the designed elevation of the foundation pit of the swirl well is achieved; and then, carrying out the section construction process of the cylinder wall of the reinforced concrete and an inner structure from bottom to top. By using the method, the supporting problem of a super-deep foundation pit under a hard soil layer environment is solved; and compared with a drop shaft sinking method, an underground diaphragm wall and a reverse process construction method, the method disclosed by the invention has the characteristics of simple construction process, low construction cost and fast construction speed.

The invention discloses a multifunctional engraving, punching and cutting all-in-one machine, which comprises a framework. A pulley capable of sliding back and forth is mounted on the framework, a head capable of moving left and right is mounted on the pulley, and a punching device, a plasma cutting device and an engraving device are mounted on the head. The multifunctional engraving, punching and cutting all-in-one machine not only has functions of an engraving machine, but also has functions of a punching machine and functions of a plasma cutting machine, and is fast in machining speed, production efficiency is greatly improved, machining precision is enhanced, and production cost is saved.

The present invention relates to a large-size and high specific stiffness truss off-axis three-reflection optical system main support structure which mainly comprises a, front plate, a first A-type truss, a second A-type truss, a third A-type truss, a fourth A-type truss, a fifth, A-type truss, a sixth A-type truss, a seventh A-type truss, and a back plate. The technical point is that the seven groups of A-type trusses are combined to the front plate and the back plate through the mode of a threaded connection. Each of the A-type truss comprises an A-type joint, a truss rod, and an I-type joint. The truss rod and the joint are combined together through the mode of glue connection, the mode of glue connection is a sleeve mode, the joint is outside, and the truss rod is inside. The A-type joint is fixed on the front plate, and the I-type joint is fixed at the back plate. The large-size and high specific stiffness truss off-axis three-reflection optical system main support structure has the advantages of compact structure, easy formation of each structure member, easy assembly of a main support structure and a high specific stiffness and can satisfy the use requirement of a large size off-axis three-reflection optical system. The main support structure can be used in the field of large space sensors, space-based telescopes and the like.

The invention provides a 30MHz-512MHz multi-band 2.5m whip antenna, which mainly solves the impedance matching problem between the antenna and the radio station. The entire antenna includes: a radiator, a coaxial cable 18, and a base 6. The radiator adopts a combined structure of a lower radiator 7 and an upper radiator 5. The lower radiator includes a lower copper tube 1 and an upper copper tube 3, two copper tubes The tubes are connected by a transmission line transformer 2, and a radiation oscillator 4 is fixed in the upper copper tube to form a sleeve antenna structure. The transmission line transformer adopts a three-winding center tap, and is equipped with four coils, which are respectively connected to the inner conductor, outer conductor, upper section copper tube, and lower section copper tube of the coaxial cable. It is used as both an electronic switch and an impedance matching element. Ultra-wideband characteristics in the 30MHz~512MHz frequency band. The invention has the advantages of wide frequency band, small standing wave ratio, high gain, no need for tuning, and can be directly matched with radio stations, and is suitable for installation on various armored vehicles and ships.

The invention discloses a polishing method for a high-rise deep-concave spherical lens. When a high-rise deep-concave spherical surface is polished, an elastic rubber cup is used for supporting the lens; and when the surface of the sphere is polished, a protective layer and a filling layer are manufactured on the polished high-rise deep-concave spherical surface, and the lens is supported through the filling layer. The method is simple, reasonable and convenient to implement; by adding the filling layer, the high-rise deep-concave spherical lens can be effectively supported in the polishing process, support with even stress can be achieved without independently customizing a special supporting cup, and the manufacturing cost is greatly reduced. Meanwhile, in the machining process, machining of two faces can be achieved only by one supporting tool, so that the machining procedure is simplified, the machining efficiency is improved, and the polishing method for the high-rise deep-concave spherical lens is rapid and low in cost.

The invention discloses an adjustable coal mining machine rail, which comprises a rack rail, a rack rail fixing mechanism, a movable rack rail seat, a transition board group, a cable trough, and a transporter trough, wherein the movable rack rail seat comprises a connecting plate and a movable seat; the cable trough is fixed on the connecting plate; the transition board group comprises one or more upper round pins, a transition board, and one or more lower round pins, and multiple holes corresponding to the upper round pins/lower round pins are respectively arranged on upper side/lower side of the transition board; the movable rack rail seat is fixed to the transition board by the upper round pins and upper screws, and the transition board is fixed to the transporter trough by the lower round pins and lower screws; and the position of the movable rack rail seat can be changed by changing the holes for installation of the upper round pins on the transition board, thus the distance between the rack rail center and the transporter trough center is changed. According to the adjustable coal mining machine rail disclosed by the invention, a fixed rail for traveling of a coal mining machine on a transporter is arranged to be an adjustable rail, so that the adjustable coal mining machine rail can adapt to be matched with coal mining machines of different machine body widths for use.

The invention provides a double-hydraulic static-pressure supporting type rotatable rock-soil testing machine. The double-hydraulic static-pressure supporting type rotatable rock-soil testing machine is characterized in that a bottom plate and vertical posts are mounted on a base, a lower platform is positioned at a specific height by the bottom plate, the vertical posts and supporting cylinders via through holes at four corners, a ladder-shaped through hole is formed in the center of an upper platform, an upper rotatable table is mounted in the ladder-shaped through hole in the center of the upper platform, a top plate is fixed at the top ends of the vertical posts, a hydraulic servo cylinder is mounted on the lower central surface of the top plate, and a piston rod of the hydraulic servo cylinder is fixedly connected with the upper surface of the upper platform. The double-hydraulic static-pressure supporting type rotatable rock-soil testing machine has the advantages that large-load specimen loading and high-precision rotation can be achieved, so that bulk specimen fracturing tests can be achieved; through high-energy CT (computed tomography) and three-dimensional imaging, rock crack generation and development during fracturing are revealed to be of great significance to rock mechanics progress.

The invention discloses a steel-concrete composite girder construction technology striding over current line and being parallel to existing lines, which comprises the flowing steps: firstly, erecting a supporting falsework, wherein the supporting falsework comprises a plurality of temporary buttresses which are distributed between two buttresses from left to right, and the distribution positions of the plurality of temporary buttresses respectively correspond to the connection position of two adjacent steel grinder sections of a steel grinder body in a construction steel-concrete composite girder; secondly, hoisting the steel grinder sections, wherein a plurality of steel grinder sections constituting the steel grinder body are hoisted in place one by one; thirdly, splicing the steel grinder body, wherein splicing is conducted on the steel grinder body after linetype adjustment and camber adjustment; fourthly, converting the system; fifthly, conducting concrete pouring construction on a ballast channel plate; and sixthly, detaching the supporting falsework. The steel-concrete composite girder construction technology has reasonable design, convenience in the construction, low investment cost, good using effect, high construction efficiency, short construction period and low safety risk, and the adopted supporting falsework has a simple structure and high satiability and is economical and practical.

The invention provides a forked space rod-type parachute wind tunnel test supporting device which comprises a wind tunnel connecting component, a front supporting component, a rear supporting component, a front balance connecting component and a rear balance connecting component. The wind tunnel connecting component is fixed onto the wall of a wind tunnel, the front supporting component and the rear supporting component are of rod-shaped structures, one end of the front supporting component is fixed onto the wind tunnel connecting component, the front balance connecting component is fixedly arranged at the other end of the front supporting component, one end of the rear supporting component is fixed onto the wind tunnel connecting component, the rear balance connecting component is fixedly arranged at the other end of the rear supporting component, and an included angle is formed between the front supporting component and the rear supporting component and larger than 90 degrees and smaller than 180 degrees. The forked space rod-type parachute wind tunnel test supporting device is simple in structural form and low in manufacturing process difficulty, a supporting fixture is provided for parachute wind tunnel tests, high-quality completion of the parachute wind tunnel tests is ensured, and the problem of supporting difficulty of the parachute wind tunnel tests is solved.

The invention discloses a construction method for installing a stainless steel spiral stair and by adopting a combined support. The method comprises the following steps that (1) embedded parts are installed; (2) an inner arc line and an outer arc line are drawn on the ground; (3) a combined support system is built; (4) the spiral stair is manufactured into stair sections; (5) all the stair sections are lifted in place in sequence, the lower ends of the next stair sections are fixed to the upper ends of the last stair sections in a spot welding mode; (6) two sight line theodolites are adopted to track and correct installation of the stair sections; and (7) welding joints between every two adjacent stair sections are fixed in an integral welding mode, and then all support bodies are dismounted. According to the construction method for installing the stainless steel spiral stair and by adopting the combined support, the problem that a spiral stair does not have supports in the installing process is solved, installing is convenient, construction efficiency is higher, stability in the installing process is good, and installing precision is also high.

The invention discloses an ecological mixed aquaculture method for bitterling and crayfish. The aquaculture method comprises the following steps of preparing a pond, preparing facilities, establishing an ecological environment, stocking the bitterling, stocking the crayfish, feeding baits, carrying out disease control and prevention, catching and harvesting. The invention provides a bait matching method for crayfish aquaculture; the bitterling and the crayfish are mixed in the same water body and water layer serving as natural live baits for ecological mixed aquaculture, so that the bait matching problem for the crayfish is solved, the environment is stabilized, and the purpose of healthy aquaculture of an ecological cycle is achieved. Through implementation of the invention, the method has the advantages of practical technology, low cost, environmental-friendly aquaculture and capability of effectively improving the yield and the composite economic benefit of the crayfish.

The invention discloses a polyimide flexible flat heat pipe. The polyimide flexible flat heat pipe comprises an upper shell plate, a lower shell plate, a liquid absorbing core and a liquid filling pipe. The upper shell plate and the lower shell plate are both made of flexible polymer polyimide, wherein a micro-nano structure with the super-hydrophobic surface is arranged on the lower surface of the upper shell plate, a copper net and micro copper column array composite structure is adopted for the liquid absorbing core, and a steam channel is formed by a supporting copper column array arrangedbetween the upper shell plate and the lower shell plate. The polyimide flexible flat heat pipe has the advantages of being small in thickness and high in flexibility, is suitable for heat dissipationof flexible or curved electronic components, and has extremely high surface adaptability.

The invention discloses a loading platform for a construction elevator. The loading platform comprises a carrying platform and vertical column guide rails; a plurality of chucks are arranged at the side edge of the carrier platform; a steel wire rope control device is mounted on the carrying platform; the vertical column guide rails are mounted about the carrying platform; guide grooves are vertically formed in one of the sides of the vertical column guide rail, close to the carrying platform; the chucks at the carrying platform are stored into the guide grooves; steel wire ropes are arranged in the guide grooves; one of the ends of the steel wire ropes is connected to the top end of each vertical column guide rail, and while the other one of the ends of the steel wire ropes is connected to the steel wire rope control device. With the adoption of the loading platform for the construction elevator, the construction materials can be conveniently lifted to reach the preset height, and the problem that ramp and trolley are used for conveying the construction materials in the prior art can be solved.