25results about How to "High pressure" patented technology

The invention relates to an optical adjusting mechanism, in particular to a multi-dimensional optical lens posture adjusting frame. The objective of the invention is to solve the problems of large size, high price and complex installation and debugging processes of the existing optical adjustment mechanism. The device comprises a fixed seat, a transverse movement adjusting plate, a longitudinal movement adjusting plate, a rotary adjusting seat and a vertical supporting plate, wherein the transverse movement adjusting plate is mounted on the fixed seat and can be manually and transversely adjusted; the longitudinal movement adjusting plate is mounted on the transverse movement adjusting plate and can be manually and longitudinally adjusted; the rotary adjusting seat is mounted on the longitudinal movement adjusting plate; the pitching adjusting mirror frame is arranged on the vertical supporting plate; the pitching adjusting ring is connected with the pitching adjusting mirror frame; the rotary adjusting seat can be used for manually adjusting a part connected to the rotary adjusting seat to rotate; the vertical supporting plate can adjust a part connected to the vertical supporting plate to move up and down; the pitching adjusting ring can realize the pitching adjustment of the pitching adjusting mirror frame through manual operation, thereby realizing the multi-dimensional adjustment of the optical lens in a narrow space.

The invention discloses a shock wave heat loading high-temperature wind tunnel and a test method, and relates to the technical field of high-temperature wind tunnel test equipment. The shock wave heat loading high-temperature wind tunnel comprises a shock tube, a wind tunnel test system, a pressure acquisition system and an air intake and exhaust system; a high-temperature and high-pressure gas source is obtained in a secondary shock wave reflection heating mode, and the total temperature of the obtained heating gas source is higher; the high-temperature wind tunnel realizes gas heating and pressurization completely through shock wave flow, extra electric power and gas requirements are not needed, and the cost of a single test is lower; the high-temperature wind tunnel test gas is premixed, so that the components of the test gas can be accurately controlled, and the purity of the components of the test gas is ensured; the device can obtain a high-temperature high-pressure subsonic flow field and even a supersonic flow field covering wide-range working conditions, can be used for visualization test diagnosis of spray fuel atomization and spontaneous combustion processes under high-temperature crosswind, accurately characterizes physical and chemical characteristic parameters such as fuel atomization characteristics, self-ignition characteristics, flame propagation characteristics and the like, and has a wide application prospect. And test data support is provided for engine combustion chamber spray atomization combustion organization.

The utility model relates to the technical field of hanging basket device installation, and discloses an installation structure of a front and rear special-shaped hanging basket device, which comprises a front area and a rear area, the front area is arranged in the middle of the hanging bracket mechanism, and the bottom of the front area is arranged on a concrete structure through expansion bolts. The rear area is arranged on the framework girder; the rear area comprises a connecting piece, at least two height adjusting pieces, a reinforcing piece and a supporting mechanism; the connecting piece is triangular and is arranged on one side, far away from the hanging basket mechanism, of the hanging bracket mechanism; the height adjusting piece is arranged in the connecting middle of the connecting piece and the supporting mechanism in a height-adjustable mode; the two ends of the reinforcing part are connected with the connecting height adjusting part and the connecting part; the supporting mechanism comprises a bottom beam, a correcting piece and a clamping plate, the correcting piece is arranged at the bottom of the bottom beam and used for supplementing the inclined state of the surface of the framework beam, the clamping plate tightly wraps the bottom beam, and the correcting piece is arranged on the framework beam through chemical bolts; wherein a through hole is formed in the framework girder, and a clamping piece used for supporting the mechanism is arranged in the through hole in a penetrating mode.

The invention relates to the technical field of textiles, in particular to a high-breathability hydrophobic non-woven fabric and a production method thereof.The high-breathability hydrophobic non-woven fabric is prepared from, by mass, 10-15% of PTFE micro powder, 5-10% of nano silicon dioxide, 3-6% of polyurethane resin, 1-3% of antistatic agent and the balance polyester fibers through extrusion, the hydrophobic treatment layers are attached to the surfaces of the filaments; due to the extremely low surface energy and hydrophobic property of the PTFE micro powder, namely polytetrafluoroethylene, the non-woven fabric can keep high air permeability, invasion of water molecules is effectively blocked, and the air-permeable and waterproof effects are achieved; due to the addition of nano silicon dioxide and polyurethane resin, the mechanical strength and durability of the non-woven fabric are remarkably improved; the waterproof performance of the non-woven fabric is further enhanced through the hydrophobic treatment layer, hydrophobic treatment is carried out before the filaments are bonded to prepare the fabric, and the high air permeability and the waterproof performance coexist.

The utility model relates to the technical field of transition section pipeline connection, specifically is a kind of pipe network construction transition section pipeline connection structure, including transition pipe, the both sides of transition pipe are fixedly installed with connecting assembly, and the one end of transition pipe is fixedly installed with first pipeline body by connecting assembly, and the other end of transition pipe is fixedly installed with second pipeline body by connecting assembly, and connecting assembly includes two access pipes, and two the access pipe is fixedly installed at the both ends of transition pipe;The utility model installs transition pipe between two caliber different access pipes, when working, fluid passes through first pipeline body, and when fluid is guided under the conical inner wall of transition pipe, gradually increase the flow rate of fluid, avoid the flow rate and pressure fluctuation of excessive in short time, produce greater pressure to the connecting area between first pipeline body and second pipeline body, to protect the connecting area, improve the service life of connecting area.

The utility model discloses a safe high temperature resistant silica gel cable, comprising an inner support sleeve; the beneficial effects of the utility model are that the insulation performance of the cable and the protection capability of the outermost part are further improved by adopting the cross-linked polyethylene insulation material as the silica gel insulation layer and the polyvinyl chloride material as the wear-resistant layer; by means of the structural design that the reinforcing strips are fixedly connected to the outer side of the inner supporting sleeve at equal intervals and the inner fixing sleeve and the inner supporting column are fixedly connected to the inner side of the inner supporting sleeve, the mechanical strength of the cable is remarkably improved, larger tension, pressure and bending stress can be borne, and the cable has good insulation performance and high-temperature resistance through the arrangement of the silica gel layer and is suitable for being used in the field of communication. And the core wire can be protected from being influenced by high temperature and electromagnetic interference.

The utility model discloses a floating bead fire-resistant heat insulation plate, belongs to the field of floating bead fire-resistant heat insulation plates, and aims to solve the problems that when the floating bead fire-resistant heat insulation plate is used, the strength of the floating bead fire-resistant heat insulation plate is weak, the floating bead fire-resistant heat insulation plate is easy to crack after being used for a long time, and the floating bead fire-resistant heat insulation plate cannot be continuously used. And the use effect is not ideal. The flame-retardant gypsum board, the flame-retardant silicate board, the fireproof fiber layer and the hard layer are distributed in the fireproof panel, the thickness of the fireproof panel can be increased, namely, the overall strength of the fireproof heat insulation board structure can be improved, and the whole formed by the reinforcing board and the connecting board is of an I-shaped structure, so that the overall strength of the fireproof heat insulation board structure is improved. The thickness of the edge of the fireproof panel can be increased through the connecting plate, the fireproof heat insulation plate structure can bear larger external pressure and load, cracking is avoided, and the sound insulation effect can be achieved through cooperation of the glass wool and the sound insulation cotton.

The present invention relates to a plug valve with elastic automatic compensation seal, including a valve body, a valve cover, a plug body, a valve stem, and a transmission mechanism. The bushing between the valve body and the plug body is composed of a left half bushing and a right half bushing. The left half bushing and the right half bushing have an axial gap in the center line direction of the valve body channel, and a floating seal pair is formed between the bushing and the plug body to automatically compensate for the wear of the seal pair. The conical cylindrical cavity of the valve body can be finely processed to obtain a high-precision inner cavity wall, which solves the problem that the prior art needs to set anti-rotation ribs in the inner cavity but cannot be finely processed, and reduces the precision requirements for the valve body casting. It has the advantages of small opening and closing torque, low requirements for valve body casting precision, convenient processing, and high use pressure.

The utility model discloses a low-temperature thermoplastic polyurethane elastic composite particle, and particularly relates to the technical field of application of thermoplastic polyurethane, which comprises a core layer, a cross-linking layer wrapped outside the core layer, a shell layer wrapped outside the cross-linking layer, a flame-retardant layer wrapped outside the shell layer, and an anti-oxidation layer arranged on the outer surface of the flame-retardant layer. The composite particle designed by the utility model can still keep excellent elasticity and rebound resilience at low temperature, the flexibility and durability of the particle at low temperature are ensured, and excellent mechanical strength and wear resistance are provided, so that the particle can bear larger pressure and friction force, the flame retardant property of the particle is improved, and the service life of the particle is prolonged. According to the utility model, the fire-proof material has better safety under dangerous conditions such as fire disasters and the like, so that the risk of fire spread can be reduced, drippings generated by combustion are reduced, and secondary injuries such as scalds and the like are avoided; and meanwhile, performance reduction caused by oxidation of the material is effectively prevented, and the performance stability of the particles in the long-term use process is ensured.

The utility model relates to the field of engineering machinery, and provides a hydraulic support vehicle stopping system and an engineering vehicle, the hydraulic support vehicle stopping system comprises a hydraulic control device arranged on the engineering vehicle; a flame-retardant wear-resistant layer is arranged on the bottom surface of the wear-resistant supporting plate; the hydraulic supporting rod comprises a supporting structure, a piston rod and a hydraulic main rod, a cavity communicated with the hydraulic control device is formed in the hydraulic main rod, one end of the piston rod is movably arranged at one end of the hydraulic main rod through the cavity, the other end of the hydraulic main rod is connected to the engineering vehicle, and the other end of the piston rod is movably connected with the supporting structure. One end of the supporting structure is rotatably connected with the engineering vehicle, and the other end of the supporting structure is movably connected with the top face of the abrasion-resistant supporting plate. According to the hydraulic supporting vehicle stopping system, emergency braking or self-rescue treatment of an engineering vehicle can be achieved by controlling stretching and retracting of the hydraulic supporting rod.

A method for concentrating an aqueous sodium hydroxide solution is provided, comprising: in a stepwise concentration process of an aqueous sodium hydroxide solution including a concentration section comprising a first evaporator to an nth evaporator connected in series, adding the aqueous sodium hydroxide solution to the first evaporator, then evaporating it to obtain a first sodium hydroxide concentrate, and recovering the vapor evaporated from the aqueous sodium hydroxide solution; and adding the first sodium hydroxide concentrate to a subsequent evaporator, and adding the vapor recovered from the first evaporator to a mechanical vapor recompression device for compression, wherein the nth evaporator uses the compressed vapor as a heat source.

The application discloses a preparation method of a monopropellant monolithic catalyst, selects a honeycomb ceramic carrier which has good heat conductivity and heat shock resistance and can keep stable structure in a high-temperature environment, coats a modified alumina coating on the surface of the ceramic carrier, and then loads noble metal as a catalytic active component through an impregnation method, so that the connectivity between the noble metal active component and the carrier is enhanced, the noble metal loading capacity is increased, the coating firmness is improved, the catalyst breakage rate is significantly reduced, and the catalyst thermal stability is improved. The monolithic catalyst prepared by the application has high catalytic activity, good coating firmness, and the modified alumina coating can also increase the strength of the carrier, can effectively inhibit sintering and phase change of the carrier in a high-temperature environment, improve the thermal stability, and is not easy to break in a high-temperature environment.

The invention discloses a silica gel high-temperature wire, and particularly relates to the technical field of cable processing, and the silica gel high-temperature wire comprises the following raw materials in parts by weight: 85-92 parts of silicone rubber, 3-7 parts of carbon black, 1-3 parts of silicon dioxide, 2-5 parts of silicone, 2-5 parts of rosin, 1-3 parts of microcrystalline wax, 0.3-1.2 parts of a stabilizer and 0.8-1.8 parts of a vulcanizing agent. According to the silica gel high-temperature wire disclosed by the invention, heat-resistant additives such as the carbon black, the silicon dioxide and the silicone are added in an implementation scheme, so that the prepared silica gel high-temperature wire can stably work for a long time in a high-temperature environment and is not easy to age, and the electrical performance of the silica gel high-temperature wire is improved by adding the carbon black and the silicon dioxide; the high-temperature wire can meet the high-performance requirement of the modern industry for wires and cables, through vulcanization treatment, the high-temperature wire can bear large tension and pressure and is not prone to breakage, the processability of the formula is improved through addition of rosin and microcrystalline wax, the preparation process is smoother, and the finished product quality is higher.

The invention relates to a device and a method for preparing a mycelium plate from edible mushroom waste. A connecting plate is fixedly installed at the output end of the lower portion of the electric push rod, a pressing block matched with an opening in the top of the forming mold is fixedly installed below the connecting plate, an air inlet cavity is formed below the lower supporting and limiting heating plate, a controller is installed in the air inlet cavity, and a circulating air outlet cavity is formed above the upper supporting and limiting heating plate. A circulating exhaust fan is mounted at the top of the integrated growth control box; growth culture of mycelia is accelerated, the time of the whole process is shortened, the growth cycle of the mycelia is greatly shortened, and the large-scale and batch production requirements are met.

The utility model discloses a supporting structure for furniture, which comprises a supporting frame, table legs are arranged on both sides of the supporting frame, the upper ends of the table legs are connected with the supporting frame through a hidden connecting assembly, the hidden connecting assembly comprises an I-shaped inserting block, the I-shaped inserting block is inserted into the supporting frame, and the I-shaped inserting block is inserted into the supporting frame. And the end parts are connected with the upper ends of the table legs through fixing pieces. Furthermore, the supporting frame comprises at least two transverse rods arranged in the same direction, the two ends of the two transverse rods are connected through connecting rods, and the ends of the connecting rods are connected with the table legs through I-shaped inserting blocks. The hidden connecting assembly allows the table leg and the supporting frame to be connected in a simple and attractive mode, the overall aesthetic feeling of furniture is enhanced, and appearance defects possibly caused by a traditional connecting mode are avoided. The design also helps to reduce the maintenance requirements of the furniture because the connecting part is not easily damaged or polluted by the external environment.

The utility model relates to a heat preservation composite board outer wall fixing anchor bolt gasket which comprises a screw rod, an expansion sleeve and an auxiliary sleeve, the expansion sleeve is arranged on the outer wall of the screw rod, and the outer wall of the expansion sleeve is sleeved with the auxiliary sleeve and detachably connected with the auxiliary sleeve; one end of the screw rod gradually expands outwards to form a conical bolt head, the other end of the screw rod is provided with a gasket and a nut, the expansion sleeve is located on the outer wall of the screw rod between the bolt head and the gasket, an expansion seat is arranged at the end, close to the bolt head, of the expansion sleeve, and a plurality of through grooves extending in the axial direction of the expansion seat are formed in the expansion seat. The auxiliary sleeve is arranged on the outer wall of the expansion sleeve, when a drilled hole is too large, the contact area between the anchor bolt and the hole wall can be increased through the auxiliary sleeve, re-drilling is not needed, damage to a base layer wall caused by re-drilling near the original anchor bolt position is avoided, and therefore the stability of the anchor bolt is improved; and the time and labor cost for re-drilling are saved, and the mounting efficiency is improved.

The utility model discloses a device for preventing an anode from sparking in an electroplating process, and belongs to the field of electroplating. A device for preventing anode ignition in the electroplating process comprises a cylindrical titanium plate and further comprises a bottom surface titanium plate fixedly connected to the cylindrical titanium plate, an extension column is fixedly connected to the bottom surface titanium plate, and a threaded groove is formed in the extension column; the support is fixedly connected to the bottom surface titanium plate, and the other end of the support is fixedly connected to the inner wall of the bottom surface titanium plate; the surface hardness of the cylindrical titanium plate and the bottom surface titanium plate can be improved, the wear resistance can be enhanced, the cross sectional area of the titanium plate can be increased, the resistance can be reduced, the heating and sparking phenomena can be improved, the bearing capacity of the titanium plate with the thickness can be enhanced, the titanium plate can bear larger weight and pressure, the stability is improved, and the service life of the titanium plate is prolonged. Therefore, the titanium plate is not easy to ignite and fuse, the titanium plate is prevented from being fused by heat, and the anode bag is prevented from being burnt out by ignition.

The invention belongs to the technical field of wind power generation equipment, and particularly relates to an electro-hydraulic brake device of a yaw system of a large wind turbine. The invention provides an electro-hydraulic brake device for a yaw system of a large-scale wind turbine, and aims to solve the problem that a brake device applied to a yaw system of a wind driven generator in the prior art is complex in structure and not easy to maintain. An electro-hydraulic brake device of a yaw system of a large wind turbine comprises an electromagnetic valve component and a brake disc body component, the brake disc body component comprises a brake disc body, an oil cavity is formed in the brake disc body, a piston is connected in the oil cavity in a sliding mode, a brake pad is installed on the piston through a rod piece, and the brake pad is located outside the oil cavity; the scheme that the hydraulic oil pressure is increased through electromagnetic valve driving, and then the hydraulic pressure drives the brake device to be started is adopted, namely, the electro-hydraulic joint control scheme. The problems of system complexity and response delay of a hydraulic system can be solved, enough driving force can be provided, and a normally-closed brake system can be rapidly started.

The utility model discloses a bidirectional hinging lifting lug adapter for a rear fulcrum hanging basket cross beam of an ultra-wide and variable-width PC cable-stayed bridge. The lifting lug adapter comprises a lower connecting base used for being connected with a rear lower cross beam of the bottom basket system, further comprises a connecting piece connected with the lower connecting base through a first pin shaft, further comprises an upper connecting base piece connected with the connecting piece through a second pin shaft, and further comprises an anchor rod connected with the upper connecting base piece through a second pin shaft. The lower end of the anchor rod penetrates into the upper connecting base piece and is fixed through a nut, and the upper end of the anchor rod is connected with a main truss system corresponding to the hanging basket. The utility model provides a bidirectional hinging lifting lug adapter for a rear fulcrum hanging basket cross beam of an ultra-wide and variable-width PC cable-stayed bridge. The structural design of the two-way hinged lifting lug adapter can bear large pressure and impact force, and can be used in a high-load working environment. The bidirectional hinged lifting lug adapter can release longitudinal and transverse bending moments of the end part of the lifting rod, so that the lifting rod is only subjected to axial force, the stress of the lifting rod is clear, and the whole structure is safer and more reliable.

The utility model relates to the technical field of civil air defense emergency water storage, in particular to a civil air defense emergency water bag matched telescopic supporting frame which comprises an assembling water bag, a frame assembly is arranged outside the assembling water bag, and a bearing base is movably installed at the position, located at the bottom end of the assembling water bag, of the inner side of the frame assembly. The frame assembly comprises a supporting column attached to the outer portion of the bottom end of the assembling water bag, top end handrails are detachably installed at the front end and the rear end of the supporting column, inserting vertical rods are rotatably installed in the containing groove, and inserting grooves corresponding to the inserting vertical rods are formed in the top ends of the top end handrails. By means of the design, the civil air defense emergency water bag can be adjusted according to the actual size and shape of the civil air defense emergency water bag, and therefore it is guaranteed that the water bag can be stably supported in various environments. According to the adaptability, the use efficiency of the water bag is improved, the supporting frame can play a role in various scenes, and the flexibility of civil air defense engineering is enhanced.

The invention relates to the technical field of water pumping tests, in particular to a water pump fixing device for a water pumping test. Comprising a vertical frame, a rotating shaft, a winding reel, a steel wire rope, a turntable, a clamping structure and a water pump, the stand is provided with a vertical supporting column, the rotating shaft is horizontally arranged, and the two ends of the rotating shaft are hinged to the supporting column. The winding reel is arranged in the middle of the rotating shaft, the steel wire rope is wound around the winding reel, and the water suction pump is fixedly connected to the end of the steel wire rope. The turntable is fixedly connected to one end of the rotating shaft and rotates to drive the rotating shaft to rotate and drive the water suction pump to lift; after the height of the water pump is determined, the turntable is fixed through the clamping structure and cannot rotate. The water suction pump can be stably supported, and the height of the water suction pump can be conveniently adjusted, so that the water suction efficiency is improved, and the data accuracy is guaranteed.

The utility model discloses a conveyor stacking assembly matched with an industrial robot, and relates to the technical field of conveyor stacking assemblies, the conveyor stacking assembly comprises a supporting seat, the supporting seat is fixedly connected with a supporting plate, the supporting plate is provided with a first rotating shaft and a second rotating shaft in a penetrating mode, the supporting plate is fixedly connected with a fixing seat, and the fixing seat is fixedly connected with the industrial robot. A motor is fixedly installed on the fixing base, the first rotating shaft and the second rotating shaft are sleeved with metal rollers, and a lifting mechanism is fixedly connected to the bottom of the supporting base. By arranging the lifting mechanism, the height position of the goods can be rapidly adjusted according to actual working scenes and task requirements, interaction with an industrial robot and other equipment is better achieved, and diversified stacking arrangement is met.

The utility model belongs to the technical field of tunnel construction, and provides a super-long and super-thick tunnel lining mass concrete cooling device which comprises an outer lining formwork assembly, an inner lining formwork assembly and a cooling assembly. The cambered surface cooling water pipes are arranged on the top formwork and the side formwork, the cambered surface cooling water pipes can synchronously advance along with the lining trolley for cyclic construction, cyclic utilization of the cambered surface cooling water pipes is facilitated, the construction cost is reduced, the cambered surface cooling water pipes are annularly arranged in an S shape along the top formwork and the side formwork, the contact area between the cambered surface cooling water pipes and a lining is increased, and the service life of the lining is prolonged. And meanwhile, the S-shaped structure can enable the cooling water to generate more turbulent flow in the cambered surface cooling water pipe, so that more efficient heat transfer can be realized.

The present invention relates to the technical field of preparation of thermoplastic elastomer shoe materials, and in particular to a thermoplastic elastomer shoe material and a preparation method thereof. The present application provides a thermoplastic elastomer shoe material, including the following weight parts of materials: 20-30 parts of EVA resin, 3-8 parts of foaming agent, 0.1-1.0 parts of antioxidant, 1-5 parts of compatibilizer, 1-5 parts of zinc stearate and 3-8 parts of modified resin particles; the modified resin particles are thermoplastic polyamide elastomers, and the polyamide elastomers include at least one of polyether block amide, polyether ester amide and polyester amide. The present application combines the excellent mechanical properties of thermoplastic polyamide elastomers with the flexibility of EVA, and can effectively disperse and absorb the external pressure and impact force applied to the material, reducing the wear caused by friction. The tear resistance and impact resistance of the shoe material are enhanced, so that the EVA material shows excellent wear resistance and mechanical properties in practical applications.

The invention discloses a rare earth modified Co-based alloy / ceramic composite coating and a preparation method thereof. The rare earth modified Co-based alloy / ceramic composite coating is prepared from the following raw materials in percentage by mass: 20-35 wt% of NbC powder, 0.05-0.1 wt% of rare earth powder and the balance of Co-based alloy powder, wherein the rare earth powder is composed of 40-60 wt% of Nd2O3 powder and 40-60 wt% of Y2O3 powder, and the Co-based alloy powder is composed of the following raw materials of, by atomic percent, 28-35 at% of Cr powder, 0.5-1 at% of Mo powder, 4-7 at% of C powder, 1-3 at% of Fe powder, 1-3 at% of Ni powder, 1-2 at% of W powder and the balance Co powder. The NbC powder and the rare earth powder are added into the Co-based alloy, so that the hardness, cavitation erosion resistance, abrasion resistance and corrosion resistance of the composite coating are improved.