35results about How to "Achieve partial replacement" patented technology

The invention discloses a bimetal nanometer catalyst used for preparing dimethyl oxalate through CO gas-phase oxidative coupling as well as preparation and an application method of the bimetal nanometer catalyst, and belongs to the technical field of preparation of the dimethyl oxalate. The bimetal nanometer catalyst is characterized in that a catalyst carrier is Alpha-aluminium oxide, an active component is Pd-Cu nanometer grains, the average size of the grain is 2-3nm, the Pd content of the active component is 0.01-2% and Cu content is 0.01-0.04% according to the mass of the catalyst carrier. The catalyst is prepared through a room temperature normal position load method, the preparation method is simple, the energy dissipation is low, the catalyst is suitable for industrial production, the active component Pd-Cu nanometer grains in the catalyst has high dispersity, large specific surface area, small size and uniformity in distribution; the catalyst provided by the invention adopts the Pd-Cu bimetal nanometer grains as the active component, and a bimetal component synergistic effect and a nanometer effect are utilized to reduce the content of the noble metal PD to 0.1% under the premise of keeping the high activity and stability of the catalyst, therefore and the cost of the catalyst is greatly reduced, and the partial substitution of the noble metal is realized.

The invention discloses a solar-assisted reheat overheating thermal power generation system and an emission reduction dilatation method. The solar-assisted reheat overheating thermal power generation system comprises a boiler, a flue gas overheater, a solar overheater, a solar reheater, a flue gas reheater, a turbine, an electric generator, condensers and a circulating pump. The boiler, the flue gas overheater, the solar overheater, the turbine, the condenser, the other condenser and the boiler are connected in sequence to form a loop. A turbine low-pressure cylinder inlet, the solar reheater, the flue gas reheater and a turbine high-pressure outlet are connected in sequence to form a loop. The turbine is connected with the electric generator. According to the solar-assisted reheat overheating thermal power generation system and the emission reduction dilatation method, solar heat storage heat exchangers serve as the reheaters and the overheaters, the overheating surfaces and the reheating surfaces of an existing thermal power generation system are increased, partial functional replacement of coal by solar energy is achieved, the purposes of emission reduction and dilatation are achieved, and the purposes that the solar energy is economically utilized and emission by existing power stations is lowered are achieved.

The invention relates to a solar cell panel and especially a cellular solar cell panel. The cellular solar cell panel comprises an electric appliance function box and thin-film solar cell layers and is characterized in that a transparent substrate (7) in a profiled corrugated shape is disposed on a supporting frames (6) in shapes of connected hexagons, that the two sides of the substrate (7) are covered with the thin-film solar cell layers, that a base plate (5) is disposed on the bottoms of the supporting frames (6) and is equipped with a thin-film solar cell layer, that a frame (2) is disposed around the supporting frames (6) in shapes of connected hexagons, and that top of the frame is covered with a light-transparent plate (1). On this account, a photovoltaic effect generated by the cell layer absorbing top photoemission is enhanced and a cellular three-dimensional light-absorbing area of the profiled corrugated substrate is enlarged. Light absorption conversion ratio is over 39 percent. The cellular solar cell panel is easy to assemble, repair, and integrally replace and may achieve local replacement. In addition, the cellular solar cell panel is convenient to use and has high commercial popularizing value.

The invention discloses a mixed rare earth sintered NdFeB permanent magnet. The mixed rare earth sintered NdFeB permanent magnet comprises a mixed rare earth main phase and an Re-Fe-B main phase. Theinvention further discloses a preparation method of the mixed rare earth sintered neodymium-iron-boron permanent magnet. According to the method, the double-main-phase technology is utilized, the mixed rare earth main phase and the Re-Fe-B main phase exist in the magnet, aging treatment is conducted on the two main phases from high temperature to low temperature in a targeted mode, distribution ofgrain boundary phases in the magnet and a microstructure are optimized, and the magnet has high coercive force.

The invention discloses a preparation method of biological calcium composite super absorbent resin and belongs to the technical field of organic-inorganic composite hydrogel. Fish processing wastes such as shrimps, crabs, shells and fish bones are simply washed, dried and crushed to obtain biological mineralized calcium powder; biological macromolecules extracted from agriculture, forestry, fishery and animal husbandry industry production side products are used as a macromolecular main chain; by being initiated by an initiator, the macromolecular main chain is copolymerized with hydrophilic monomer acrylic acid to prepare biological polymer based super absorbent resin; in the preparation process, the biological polymer based super absorbent resin is compounded with the treated biological calcium powder; through chemical reaction between the biological calcium and the acrylic acid, a porous structure is generated; and by using anhydrous low carbon alcohol to directly dehydrate pre-swelling and frozen composite hydrogel, physically modified porous biological calcium composite super absorbent resin is obtained. The preparation method of the biological calcium composite super absorbentresin, disclosed by the invention, has the advantages that carapace resources and biomass resources can be sufficiently utilized to be beneficial for saving energy; and moreover, the prepared resin possesses good water absorbing performance, water retention capacity and thermal stability.

The tubing packer comprises a center pipe, a slip bowl and a centralizing block sheath, an upper connector and a lower connector are installed at one end of the outer side of the center pipe through threaded pipes, the centralizing block sheath is installed on the outer side of the center pipe, a centralizing block seat is installed in the centralizing block sheath, and a rubber sleeve is installed in the centralizing block seat. Two sets of centralizing block pieces are movably installed in the centralizing block protective sleeve through installation grooves, and two sets of second springs are installed in the centralizing block pieces through fixing grooves. Outward elastic extrusion force can be applied to the centralizing block piece under the action of the second spring, so that the centralizing block piece elastically moves in the mounting groove under the elastic force of the second spring, the centralizing block piece is tightly attached to the inner wall of an oil pipe and does not move under the action of elastic potential energy of the second spring, and therefore the packer can be conveniently positioned; and the packer can be locked at a specified seat key position, so that the accuracy of the packer on the sealing position of the oil pipe is ensured, and the practicability of the device is improved.

The invention discloses a folding arm type disconnecting switch capable of achieving transformation at different angles. The folding arm type disconnecting switch capable of achieving the transformation at different angles comprises an upper conductive part and a rotary porcelain bottle. An angle transformation device is arranged between the upper conductive part and the rotary porcelain bottle, the input shaft of the angel transformation device is in butt joint with the rotary porcelain bottle, and the output shaft of the angel transformation device is in butt joint with a rotary crank arm of the upper conductive part. According to the folding arm type disconnecting switch capable of achieving the transformation at different angles, the angle transformation device is arranged between the upper conductive part and the rotary porcelain bottle, butt-joint between an old product and a new product is achieved, the structural defect of the old product is overcome fundamentally, partial replacement can be achieved, the reliability of operation is achieved, and cost is saved.

The invention relates to a method for realizing sectional replacement of refractory materials of a sleeve kiln and prolonging the kiln service life. The method comprises the following steps of 1, dismounting of the refractory materials needing to be replaced in the kiln, 2, construction of a bottom structure of an upper inner barrel, 3, construction of a bottom structure of an upper flow guide cap, 4, improving of a brick holder ring structure of a lower inner barrel, and 5, improving construction of a bottom pouring material structure of the lower inner barrel. By means of the method, sectional replacement to the refractory materials in the kiln can be realized, each section is relatively independent, the refractory materials of other portions are not affected, the portions with the goodquality state can be repeatedly used, only the seriously-damaged portions are replaced, the refractory material repairing time is greatly shortened, the refractory material repairing cost is greatly reduced, and the overall refractory material replacing period is effectively prolonged.

The invention relates to an anticorrosive overvoltage protecting electric heating drainage device, including a device body system, a water inlet pipe system, a water outlet pipe system, a connecting tube system and a sewer pipe system. The invention is characterized in that the systems above adopting assembly structure are connected together in mechanical way. The internal walls of the device body system, the water inlet pipe system, the water outlet pipe system, connecting tube system and the sewer pipe system, as well as the contact parts of the systems contacting with sewage and coal gas adopt anticorrosive treatment. The method of the anticorrosive treatment is a chemical anticorrosive method of lining or coating, or a method combining chemical anticorrosion and electrochemical anticorrosion. Being capable of effectively solving the problems of corrosion and damager of the coal gas pipes caused by the drainage of various sewages of strong corrosion or coal gas medium, the invention has the advantages of simple fabrication and assembly and partial replacement.

The invention relates to a flue and a boiler. The flue comprises a furnace mouth section flue body, the furnace mouth section flue body comprises a movable section flue body, a fixed section flue body, a moving device, a lifting supporting device and a fixed connecting device, and the movable section flue body is communicated with the fixed section flue body; the lifting supporting device is used for supporting the fixed section flue body in the height direction and fixing the fixed section flue body to the height position where the fixed section flue body is connected with the movable section flue body through the fixed connecting device, and after the fixed connecting device is disconnected with the fixed section flue body, the fixed section flue body is driven to descend through descending of the lifting supporting device in the height direction, so that the fixed section flue body is disconnected from the movable section flue body; and the movable section flue body is connected with the moving device, and the movable section flue body is driven by the moving device to move. The invention further discloses a boiler with the flue. The flue can be partially replaced or wholly replaced.

The invention relates to the technical field of Chinese rose cultivation raw materials, and discloses a renewable nutrient medium for potted rosachinensis minima. The renewable nutrient medium comprises the following components: turf, coconut coir, perlite and caragana microphylla, wherein the volume ratio of the turf to the coconut coir to the perlite to the caragana microphylla is 7:5:6:1.4. Theinvention further discloses a matched nutrient solution for the renewable nutrient medium for the potted rosachinensis minima. The medium and the nutrient solution are low in production cost and small in environmental pollution; the usage amount of the turf is reduced by 41-50%, the cost of the medium is reduced, the recycling way of agricultural and forestry waste resources is expanded, the environment is protected, and the cost of the medium is further reduced; and the growth quality of the potted rosachinensis minima is effectively improved, and the potted rosachinensis minima shows excellent growth vigor in the aspects of plant height, stem thickness, flower diameter, crown size, leaf size and the like.

The invention provides a laying method for applying separated building blocks to a reservoir revetment. The method is used for solving the problem that the damaged building blocks are inconvenient todisassemble and replace, and achieving the beneficial effects that the damaged building blocks are convenient to replace and the effect of the original building blocks is not influenced. The method comprises separated building blocks and integral building blocks matched with the separated building blocks. According to the method, the integral building blocks and the separated building blocks are laid in a mixed mode, construction is easy, the overall stability is guaranteed, and meanwhile the separated building blocks are easy to disassemble and maintain in the later period; and when local building blocks of masonry units are damaged, the separated building blocks in the adjacent areas can be detached, local replacement is achieved, integrity is guaranteed, and meanwhile revetment protection can operate stably for a long time.

The invention relates to a reaction device. The reaction device comprises a reaction material inlet, a reaction product outlet, two or more plate reactors, a reaction material distributor and a reaction product collector. The reaction device has the advantages that the heat exchange area is large, the reaction temperature can be controlled accurately, the catalyst adaptability is wide, modular mounting can be realized, the manufacturing difficulty is low and the like.

The invention discloses an optical module which comprises a base (100) and at least two light distribution units (200). At least two mounting portions matched with the light distribution units (200) are arranged on the base (100), and the light distribution units (200) are detachably fixed onto the mounting portions corresponding to the light distribution units and used for covering at least one light-emitting unit (400). The invention further discloses a lighting module and a lighting fixture. The scheme can solve the problems that current lighting fixtures are high in maintenance cost, and different light distribution requirements of lighting fixtures with different sizes are difficultly met.

The invention discloses a bimetal nanometer catalyst used for preparing dimethyl oxalate through CO gas-phase oxidative coupling as well as preparation and an application method of the bimetal nanometer catalyst, and belongs to the technical field of preparation of the dimethyl oxalate. The bimetal nanometer catalyst is characterized in that a catalyst carrier is Alpha-aluminium oxide, an active component is Pd-Cu nanometer grains, the average size of the grain is 2-3nm, the Pd content of the active component is 0.01-2% and Cu content is 0.01-0.04% according to the mass of the catalyst carrier. The catalyst is prepared through a room temperature normal position load method, the preparation method is simple, the energy dissipation is low, the catalyst is suitable for industrial production, the active component Pd-Cu nanometer grains in the catalyst has high dispersity, large specific surface area, small size and uniformity in distribution; the catalyst provided by the invention adopts the Pd-Cu bimetal nanometer grains as the active component, and a bimetal component synergistic effect and a nanometer effect are utilized to reduce the content of the noble metal PD to 0.1% under the premise of keeping the high activity and stability of the catalyst, therefore and the cost of the catalyst is greatly reduced, and the partial substitution of the noble metal is realized.

The invention discloses a novel replacement structure for a reinforced concrete through arch bridge suspender and a replacement method thereof, belongs to the technical field of bridge engineering, and aims to solve the problems that a single suspender of a reinforced concrete through arch bridge needs to be replaced by means of a temporary tensioning and dragging device, the bridge traffic needsto be interrupted, and time and labor are wasted. The structure comprises a suspender, an arch rib and a cross beam, the suspender is arranged between the arch rib and the cross beam, the suspender isa double-suspender component, the double-suspender component comprises a first anchor rod, a first cable distributing plate, a suspender unit, a second cable distributing plate and a second anchor rod which are sequentially arranged from top to bottom, a suspender anchor head is arranged between the suspender unit and the first cable distributing plate, and a screw sleeve is arranged between thesuspender unit and the second cable distributing plate. The method comprises primary replacement and secondary replacement. The suspenders can be replaced one by one through portable equipment, the stress reasonability of a bridge structure can be guaranteed, and great convenience is brought to cable replacement construction.

The invention provides a medicine production waste liquid drainage device which comprises a smashing barrel. A barrel cover is fixed at the upper end of the smashing barrel, a limiting ring is fixed in the middle position in the smashing barrel, a circular frame is arranged on the upper side of the limiting ring, a thin iron wire net is fixed in the circular frame, a motor is installed in the middle position of the upper end face of the barrel cover, the output end of the motor extends into the smashing barrel and is fixedly connected with a transmission shaft, three blades are annularly installed on the outer surface of the lower end of the transmission shaft at equal intervals, the blades are arranged on the upper side of the thin iron wire net, the lower end of the transmission shaft issleeved with a sleeve, the sleeve is arranged on the lower side of the thin iron wire net, and the upper portion of the outer surface of the sleeve is provided with a strip-shaped brush. Compared with the prior art, the device has the beneficial effects that large-size solid waste slag is smashed, and local replacement is achieved for easy-to-damage parts.

A diamond comb-shaped thin film solar panel comprises an electric appliance function box and thin film solar cell layers. A transparent substrate is arranged in a corrugated shape on a diamond one-piece supporting frame, the two sides of the substrate are covered with the thin film solar cell layers, a bottom plate is arranged at the bottom of the supporting frame, the thin film solar cell layers are arranged on the bottom plate, a frame is arranged on the periphery of the bottom plate, and the frame is covered with a top light-transmitting plate. In this way, the photovoltaic effect produced by the situation that the thin film solar cell layers absorb the top light photoemission is increased, and the diamond comb-shaped three-dimensional light absorption area of the corrugated-shaped substrate is increased, and light absorption conversion is larger than 39%. According to the diamond comb-shaped thin film solar panel, by means the process structure of three-dimensional space, the light absorption area of the thin-film solar cell is effectively increased, and the light-energy conversion efficiency is improved. The diamond comb-shaped thin film solar panel is convenient to assemble, maintain and replace in an integral mode and convenient to use due to the fact that local replacement further can be achieved, thereby having high commercial popularization value.

The invention provides a vacuum degree detection device of vacuum equipment, the vacuum degree detection device comprises a vacuum degree sensor, one end of the vacuum degree sensor is provided with a thread part, the outer surface of one end of the vacuum degree sensor close to the thread part is sleeved with a regular hexahedron, and the vacuum degree sensor is sleeved with two four-side frames capable of forming a regular hexahedral frame. Strip-shaped openings are formed in the two ends of the four-face frame, strip-shaped plates are inserted into the strip-shaped openings, rubber pads are installed at the two ends of each strip-shaped plate, penetrating holes are formed in the upper surfaces of the interiors of the strip-shaped openings, two threaded holes matched with the penetrating holes are symmetrically formed in the upper surfaces of the strip-shaped openings, and connecting screws are arranged in the penetrating holes. Compared with the prior art, the device has the following beneficial effects that a wrench and other tools are prevented from making contact with the regular hexahedron, the effect of protecting the regular hexahedron is achieved, after the four-side frames are abraded, only the two four-side frames need to be separated and replaced, and local replacement of easily-damaged parts is achieved.

The invention relates to the technical field of building formworks, in particular to a bridge construction pier supporting formwork which comprises a formwork body, a protection plate is installed on one side face of the formwork body, and four cylindrical rods are evenly fixed to the face, facing the formwork body, of the protection plate. Four penetrating holes matched with the cylindrical rods are formed in the face, facing the protection plate, of the formwork body, hollow columns are arranged on the sides, deviating from the protection plate, of the penetrating holes, cylinders are inserted into the hollow columns, disc bodies are fixed to the ends, away from the protection plate, of the cylinders, and connecting pipes are installed on the faces, deviating from the cylinders, of the disc bodies. And a ball valve is installed at the end, away from the disc body, of the connecting pipe, a pipe connector is installed at the other end of the ball valve, and a quick connector used for being connected with air exhaust equipment is installed at the end, away from the ball valve, of the pipe connector. Compared with the prior art, the bridge construction pier supporting formwork has the following beneficial effects: performing a function of protecting the template body, realizing no requirement for discarding of the whole template body, and reducing waste of resources.

The invention discloses an organic waste gas treatment system and treatment process. The system comprises a fresh air supplementing device, a pretreatment device, a zeolite rotary drum, a waste gas treatment device, a main fan and a recycling pipeline. The fresh air supplementing device is connected with a production workshop, and the pretreatment device is connected with a waste gas exhaust port of the production workshop. The zeolite rotary drum comprises a base, a gear transmission assembly fixed on the base, a rotary drum erected on the base and driven by the gear transmission assembly to rotate, a desorption system fixedly arranged on the side edge of the rotary drum, an outer frame arranged on the outer side of the rotary drum, and an adsorption inlet, an adsorption outlet, a desorption inlet and a desorption outlet which are formed in the outer frame. The adsorption inlet is connected with the pretreatment device, the adsorption outlet is connected with the main fan, and the desorption inlet and the desorption outlet are respectively connected with the waste gas treatment device. the wind output end of the main fan is connected with the exhaust chimney; and one end of the recycling pipeline is connected with the wind outlet end of the main fan, and the other end of the recycling pipeline is connected with the production workshop. The treatment system disclosed by the invention is low in operation cost, energy-saving, environment-friendly and high in recycling benefit.

The invention provides a stamping die of a back plate convex hull. The stamping die comprises a bottom die, wherein guide columns are mounted at four corners of the upper end surface of the bottom die, a pressing plate is arranged on the upper side of the bottom die, and the upper ends of the guide columns penetrate through the pressing plate; a ball groove is formed in the upper end surface of the bottom die, a hemispherical cover is formed in the ball groove, positioning grooves are formed in the left side and the right side of the inner surface of the ball groove, a first threaded blind holes are formed in the lower end surface of the interior of the positioning grooves, positioning plates are fixed on the left side and the right side of the outer surface of the hemispherical cover, thepositioning plates are arranged in the positioning grooves, countersunk head holes are formed in the upper end surfaces of the positioning plates, inner hexagonal bolts are formed in the countersunkhead holes, a stamping rod is arranged in the middle of the lower end surface of the pressing plate, a hemispherical head is arranged on the lower end of the stamping rod, a second threaded blind holeis formed in the middle position of the upper end surface of the hemispherical head, and a stud is fixed at the lower end of the stamping rod. Compared with the prior art, the stamping die has the beneficial effects that local replacement of the worn part is realized, and the maintenance cost is reduced.

The invention discloses a method for maintaining an inspection well without cutting off water. The method comprises a new pipeline construction method, an original main pipeline removal method and an original main pipeline rerouting method, a sealing box body which is used for connecting an upstream main pipeline and a downstream main pipeline is arranged in the inspection well, a plugging unit is arranged at the end, which is located in the inspection well, of each main pipeline in a sealing mode, both the plugging unit and the sealing box body are provided with a plurality of adapters, a plurality of adapting pipelines are connected between the plugging unit and the sealing box body through the adapters, each adapting pipeline comprises at least two hoses and a hard pipe, a valve which is used for controlling connection and disconnection is arranged on the hard pipe, the sealing box body is connected with a hard adapting pipe, a valve which is used for controlling connection and disconnection is arranged on the hard adapting pipe, and the end opening of the hard adapting pipe is matched with the adapting pipeline. According to the method, various pipeline construction requirements can be met on the premise that water is not cut off.

The invention provides an anti-deformation mold pressing device for disc spring tempering. The anti-deformation mold pressing device comprises a base, a groove is formed in the middle of the upper surface of the base, a plurality of arc-shaped blocks which are narrow in top and wide in bottom and are used for supporting disc springs are arranged in the groove, the ends, located in the groove, of the arc-shaped blocks are connected with the base in a hinged mode, conical columns which are wide in top and narrow in bottom and are used for supporting the upper ends of the arc-shaped blocks are arranged among the multiple arc-shaped blocks, a second stud is fixedly connected to the lower ends of the conical columns and is in threaded connection with the base, a first stud is fixedly connected to the upper ends of the conical columns, a cylinder used for pressing and holding the arc-shaped blocks is arranged on the first stud in a sleeving mode, the lower surface of the cylinder is provided with conical grooves which are narrow in top and wide in bottom, the first stud is in threaded connection with a nut, and the nut is arranged on the side, deviating from the arc-shaped blocks, of the cylinder. Compared with the prior art, the anti-deformation mold pressing device for the disc spring tempering has the following beneficial effects that the inclination angle of the arc-shaped blocks can be conveniently adjusted, the device can be conveniently matched with the disc springs with different inclinations, and the universality is improved.

The invention discloses a flexible electrode switching device, and relates to the technical field of circuit board electrode switching. The device comprises a circuit board, a flexible fixing reinforcement member, a signal transmission flexible electrode, and a fixing structural member used for positioning and fixing the circuit board and the signal transmission flexible electrode. The flexible fixing reinforcing member is located between the signal transmission flexible electrode and the fixing structural member and is used for soft contact; and the circuit board is correspondingly connected with the signal transmission flexible electrode through an electrode. According to the invention, traditional sharp point contact is improved into blunt surface contact, so that the flexible circuit is not damaged while the contact area is increased, and the problem that a printed conductive material is scraped and scraped after a traditional sharp base is plugged and unplugged to cause circuit disconnection or poor contact is solved. The flexible electrode is effectively prevented from being scalded by high temperature in the welding process of rivet riveting type connection, and the flexible electrode is better protected.

The invention relates to a wear-resistant layer production process for a flow passage component of cutter-suction dredger. The production process comprises the steps of S1, preparation of wear-resistant blocks, and S2, laying of a wear-resistant layer. In the step S1, the preparation of the wear-resistant blocks comprises the following steps: S101, cutting a steel plate into a plurality of trapezoidal steel plates, and vertically cutting each corner of each trapezoidal steel plate; S102., annealing the cut trapezoidal steel plate; S103, punching the center of each trapezoidal steel plate afterannealing treatment, and machining grooves around punching holes, and then stamping and forming to obtain the steel plate with the double curvature radian; and S104, sequentially carrying out quenching and tempering treatment on the steel plate with the double curvature radian to obtain the wear-resistant blocks. In the step S2, the laying of the wear-resistant layer comprises the following stepsthat all the wear-resistant blocks are spliced to form the wear-resistant layer, and square holes are formed in the periphery of the wear-resistant blocks after splicing of the wear-resistant blocks,seams are formed at the splicing positions, and positioning holes, the square holes and the seams of all the wear-resistant blocks are sequentially welded, so that the wear-resistant block are fixedto the inner wall of the flow passage component of the cutter-suction dredger. According to the wear-resistant layer production process, the wear-resistant layer is laid on the inner wall of the flowpassage component, so that the wear-resistant performance and the service life of the cutter-suction dredger are improved.