64results about How to "High pressure" patented technology

The invention relates to an anti-static PP composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The antistatic PP composite material is prepared from the following components in parts by weight: 60 to 80 parts of PP resin, 10 to 20 parts of glass fiber, 0.1 to 0.5 part of a lubricant, 0.3 to 2 parts of a modified antistatic agent, 0.5 to 1.5 parts of a modified flame retardant and 0.2 to 0.8 part of an antioxidant, in the modified antistatic agent, an alkanolamide bond intermediate forms a conductive film, so that the resistivity is reduced, static dissipation is promoted, the material is endowed with lubricity, and the generation of static electricity is reduced; in addition, maleic anhydride forms a conductive layer and cooperates with quaternary ammonium salt to enhance hydrophilicity and accelerate charge transfer; a piperazine pyrophosphate derivative in the modified flame retardant and a phosphorus-nitrogen flame retardant cooperate to construct an expanded carbon layer to isolate a fire source and oxygen, so that the service life is prolonged; the anti-static PP composite material prepared by the invention not only has a good anti-static effect, but also has excellent flame-retardant and tensile properties.

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 preparation method of a reverse osmosis membrane and the reverse osmosis membrane. The preparation method comprises the following steps: (1) adding polyethersulfone into N, N-dimethylacetamide in a heating and stirring state, and stirring for a period of time after charging is completed, so as to obtain a mixed solution; (2) cooling the mixed solution, continuing to add a pore-foaming agent, and stirring for a period of time after charging is completed to obtain a precursor solution; (3) performing vacuum defoaming treatment on the precursor solution to obtain a membrane casting solution; (4) loading the membrane casting solution on a carrier, and then carrying out gel bath treatment to obtain a base membrane; and (5) performing polyamide treatment on the surface of the base membrane to obtain the reverse osmosis membrane. The preparation method disclosed by the invention is simple in process and low in material cost, and the obtained reverse osmosis membrane has more uniform and more through-type pore structures, higher separation efficiency, more excellent chemical stability and better mechanical properties, can adapt to higher operation pressure, and can continuously and stably operate at higher flux under high pressure.

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 invention relates to a preparation method of paper, in particular to a preparation method of breathable paper applied to a packaging material. Chitosan and oxidized sodium alginate are subjected to a Schiff base reaction, so that a more open and loose coating layer is formed on the fiber surface, gas circulation is facilitated, and the air permeability of the paper is improved to a certain extent. And a covalent bond formed by Schiff base reaction enhances the binding force between chitosan and oxidized sodium alginate, so that the coating layer is more firmly attached to the surface of wood pulp fiber. The enhanced binding force is favorable for improving the mechanical properties such as tensile strength and breakage resistance of the paper, and an imine bond generated by the Schiff base reaction has higher chemical stability and can resist the influence of changes of external environments such as humidity, temperature and the like on the coating layer, so that the long-term stability of the performance of the paper is kept.

The stop valve solves the technical problems that in the prior art, the upper limit of temperature and pressure is low, and abrasion and leakage are prone to occurring. The stop valve comprises a valve body, a valve seat, a valve cover and a valve rod. The valve body comprises a first channel and a second channel which are communicated with each other, the valve seat is located at the joint of the first channel and the second channel, the valve seat and the valve cover are detachably matched with the valve body, the valve rod is in sliding fit with the valve cover so that the valve rod can be close to or away from the valve seat, and when the valve rod is close to the valve seat, the valve rod can cut off the first channel and the second channel. All parts of the stop valve are detachably matched, so that the valve seat can be taken out for hard alloy surfacing, the use temperature and pressure of the stop valve are greatly improved, and the service life of the stop valve can be effectively prolonged.

The utility model belongs to the technical field of powder metallurgy powder preparation, and particularly relates to a gradient annular groove ball milling tank which is applied to development and research of novel composite materials and metallurgical technologies. When a traditional ball milling tank with a smooth inner wall is used for preparing flaky metal powder, the consumed time is long, the powder loss is large, impurity elements are easy to introduce, and particularly, hard metal powder (such as titanium and tungsten) is difficult to mill into flaky metal powder. According to the gradient annular groove ball-milling tank provided by the utility model, the gradient annular inner groove is formed in the inner wall of the ball-milling tank, so that the stress condition and the collision mode of metal powder and the ball-milling tank under the action of ball-milling beads can be optimized, and the metal powder is converted into a sheet shape with high efficiency and low loss. The inner molded surface of the gradient annular groove ball milling tank is a cylindrical surface, and a plurality of annular grooves are distributed in the inner molded surface in the height direction; wherein the section of the annular groove is in a semi-elliptical arc shape, and the ellipticity of the annular groove from the top to the bottom is gradually reduced.

The invention discloses a preparation method of a sodium alginate fiber biological material fiber with a hollow structure and a sodium alginate fiber.The preparation method comprises the following steps that 101, CaCl2 particles are dissolved in deionized water and fully stirred, and a CaCl2 / H2O core layer spinning solution is prepared; step 102, dissolving sodium alginate in deionized water, heating to improve the solubility of the sodium alginate in the deionized water, and fully stirring to obtain an SA / H2O cortex spinning solution; and step 103, respectively extruding the SA / H2O skin layer spinning solution and the CaCl2 / H2O core layer spinning solution into a CaCl2-removed coagulating bath through a coaxial needle at the speeds of 200 [mu] L.min <-1 > and 200 [mu] L.min <-1 >, and aging to obtain the hollow fiber. According to the preparation method, a coaxial spinning process is adopted, and the problems of fluid fracture and the like caused by drafting instability can be effectively avoided. Hollow fibers are used for replacing solid rod-shaped fibers, the process is efficient, convenient, energy-saving and environment-friendly, the experiment repeatability is high, a high-voltage electric field and toxic substances are not involved in the preparation process, and damage to biological tissues is avoided.

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 present invention discloses a construction method of a heat exchanger based on a radially heterogeneous graded three-period minimal surface structure, comprising: dividing the space in the heat exchanger into cold fluid channels and hot fluid channels that intersect but do not interpenetrate each other through selected three-period minimal surface cells, obtaining the rectangular coordinate system equations of the three-period minimal surface cells at the same time, and hybridizing and connecting the selected different three-period minimal surface cells to obtain a newly formed hybrid function; adjusting the overall structure of the cells according to the newly formed hybrid function, and performing coordinate transformation on the rectangular coordinate system equation to obtain a target function; adjusting the number of periods of the cells in each direction in the heat exchange core based on the target function, and adding a shell outside the core to obtain a newly constructed heat exchanger. The present invention realizes a multi-stage TPMS structural design with lower stress concentration, and effectively solves the problem of reduced compactness caused by the increase in the size of the minimal surface structure, thereby improving heat exchange performance.

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 relates to a high pressure sealing and pressure adjusting structure of a hydraulic knife handle, which comprises a knife handle base body, a piston rod, an O-shaped sealing ring, a thread bushing and a screw, the knife handle base body is provided with a piston cavity, a sealing cavity and a thread cavity, and the piston cavity, the sealing cavity and the thread cavity are sequentially distributed in a stepped hole structure; the threaded sleeve is fixed in the threaded cavity; one end of the piston rod is arranged in the piston cavity, and the other end of the piston rod penetrates through a center hole of the threaded sleeve and is supported on the screw. The screw is arranged in the threaded sleeve, is spirally matched with the threaded sleeve and can push the piston rod to move in the piston cavity; the piston rod, the threaded sleeve and the inner wall of the sealing cavity form a closed annular cavity, and the O-shaped sealing ring is arranged in the annular cavity. The sealing element is simple in structure, convenient to machine and manufacture, low in cost and capable of effectively guaranteeing the performance and the service life of the sealing element in the high-pressure environment.

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 decorating part is detachably connected with a rope belt of the clothes, and the decorating part is characterized in that a first clamping part is provided with at least one first clamping groove, and the first clamping groove is provided with a through first groove channel suitable for the rope belt to slide relative to the first clamping part after the rope belt penetrates through the first groove channel; the second clamping part is provided with at least one second clamping groove matched with the first clamping groove, and the second clamping groove is provided with a through second channel; the second clamping part is in sliding connection with the first clamping part, and the second clamping part slides at a first position where the first channel is separated from the second channel and a second position where the first channel is overlapped with the second channel relative to the first clamping part; and the elastic part is arranged between the first clamping part and the second clamping part so as to drive the second clamping part to stop at the first position. The utility model provides a decorating part and clothes thereof, the decorating part can be stably fixed on a rope belt, is not easy to fall off or move in use, solves the problem that the rope head cannot pass through the rope belt due to overlarge size, and is easy to mount and dismount.

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 provides a sewage pipeline plugging device, which relates to the technical field of sewage pipeline treatment and comprises a first support end, a first support cylinder, a support pulley, a second support end, a second support cylinder, an anti-skid support leg, a flexible plugging ring, a flexible plugging wrapping material, an expansion electric cylinder, a connecting end disc and a structural framework, the plugging device comprises a first supporting end, a second supporting end and a flexible structure frame. The flexible structure frame comprises a flexible plugging ring, a flexible plugging wrapping material, an expansion electric air cylinder, a connecting end disc and a structure framework. According to the device, the flexible plugging structure and material are adopted, the device has extremely high adaptability and sealing performance, the flexible plugging ring and the flexible plugging wrapping material can be tightly attached to the inner wall of the pipeline regardless of sewage pipelines of different sizes or shapes, the effective plugging effect is achieved, sewage leakage is effectively prevented, and the quality and safety of plugging work are ensured.

The fresh air device comprises a base and a volute assembly, the base is provided with an air inlet channel and an exhaust channel communicating with the air inlet channel, and the exhaust channel is provided with an indoor exhaust port and an outdoor exhaust port; the volute assembly is arranged in the exhaust channel and comprises a volute shell and an exhaust wind wheel arranged in the volute shell, the volute shell is provided with a volute air outlet, and the volute shell can rotate relative to the base so that the volute air outlet can correspond to the indoor exhaust port or the outdoor exhaust port. According to the technical scheme, the base rotates to enable the air outlet of the volute to correspond to the indoor air outlet or the outdoor air outlet, so that the air volume is equivalent no matter in a fresh air mode or an air exhaust mode, the air exhaust capacity is improved under the condition that the air volume capacity of original fresh air is not reduced, and air exhaust has the same air volume capacity.

The invention relates to the technical field of fans for power concentration motor train units, in particular to a traction ventilator with a wind sand abrasion prevention structure, which comprises an air inlet formed in the top end of a main air duct and an air inlet mounting plate movably mounted on the main air duct, and an abrasion prevention mechanism for preventing wind sand from abrading the inner wall of the main air duct is arranged in the main air duct. A noise reduction mechanism for reducing noise generated by operation of the fan is arranged in the main air duct, and a pressurization mechanism for increasing operation pressure of the fan is arranged in the main air duct. By arranging the anti-abrasion mechanism, sand and sand abrasion at the corner can be reduced, the centrifugal fan is suitable for the operation environment with severe sand and dust, by arranging the pressurization mechanism and adopting the mode of the centrifugal impeller and the double rows of guide blades (stationary blades), the separation loss of a low-speed area is reduced, the high pressure of the fan is guaranteed, and the efficiency is improved; the plate type blades with the sound level lower than A are adopted, matching between the blade outlet angle and the blade number is optimized, and the noise of the draught fan is greatly reduced.

The utility model relates to the technical field of draw-bar boxes, and discloses a draw-bar box with high structural strength, which comprises two mutually hinged draw-bar box shells and a draw-bar box draw bar fixed on the surface of the rear draw-bar box shell, and further comprises a mounting plate bolted at the bottom of the front draw-bar box shell, telescopic rods are fixed to the front side and the rear side of the inner wall of the buffer frame correspondingly, movable shafts are fixed to the opposite ends of the telescopic rods correspondingly, and a through groove is formed in the surface of the top of the buffer frame. The draw-bar box has higher structural strength, so that the draw-bar box is firmer and more durable and can bear larger pressure and weight, the service life of the draw-bar box can be prolonged, a traveler can feel relieved when carrying heavy objects and does not need to worry about deformation or damage of the box body, and the draw-bar box also has better impact resistance and is convenient to use. And when being impacted by external force or falling off, the impact force can be effectively absorbed and dispersed, so that the safety of the box body and articles in the box is protected.

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 invention discloses a preparation method of an ultra-filtration membrane and the ultra-filtration membrane, and solves the technical problem that a preparation method of an MWCO 5000 ultra-filtration membrane in the prior art is tedious in process. The preparation method of the ultrafiltration membrane comprises the following steps: (1) preparing a precursor solution containing an organic solvent, polyether sulfone, sulfonated polysulfone and a pore-foaming agent; (2) performing vacuum defoaming treatment on the precursor solution to obtain a membrane casting solution; and (3) loading the membrane casting solution on a carrier, and then carrying out gel bath treatment to obtain the ultrafiltration membrane. According to the invention, through the interaction of the sulfonic acid group of sulfonated polysulfone and the pore-foaming agent, the ultrafiltration membrane reaching the MWCO 5000 separation performance can be directly obtained in one step through the phase inversion effect, a composite layer does not need to be further synthesized, the working procedures are obviously reduced, and the manufacturing time and cost are saved.

The utility model relates to the technical field of conveying belts, and discloses a novel rubber conveying belt which comprises a conveying belt body, protective frame strips are arranged at the upper ends and the lower ends of the two sides of the outer wall of the conveying belt body, and a plurality of clamping blocks are fixedly connected to the two sides of the upper surface and the two sides of the lower surface of the conveying belt body. And a plurality of limiting grooves are formed in the bottom surface and the top surface of the protective frame strip. According to the rubber conveying belt, when the rubber conveying belt is used, the protective frame strips are made of PVC materials, so that the rubber conveying belt has good flexibility and elasticity, can adapt to deformation and distortion of the conveying belt in the running process, can effectively protect the edge of the conveying belt against external impact and abrasion, and prevents the conveying belt body from deforming, falling off or breaking; by embedding the multiple strands of steel wire ropes into the framework, the overall strength and the bearing capacity of the conveying belt can be remarkably enhanced, so that the conveying belt can bear larger material weight and conveying pressure, and the conveying belt is suitable for treating heavy-load and high-strength working environments.

The invention discloses a three-sleeve millichannel reactor which comprises a reaction unit, a reaction liquid supply unit and a constant-temperature liquid supply unit, the reaction unit comprises a first pipe body, a second pipe body and a third pipe body which are sequentially sleeved from inside to outside; the outer wall of the first pipe body and the inner wall of the second pipe body form a first annular space; the outer wall of the second pipe body and the inner wall of the third pipe body form a second annular space; the reaction liquid supply unit and a liquid inlet of the first annular space can be connected and disconnected, and the constant-temperature liquid supply unit and a liquid inlet of the second annular space can be connected and disconnected; a first turbulent flow assembly is arranged in the first annular space, and a second turbulent flow assembly is arranged at a liquid inlet of the first annular space; the second turbulent flow assembly comprises a first channel and a second channel; the first channel is communicated with the first pipe body, and the second channel is communicated with the first annular space. According to the reactor, through the design of the multi-layer sleeve structure, the turbulent flow assembly and the liquid inlet, the mixing uniformity degree of reactants in the first annular space is promoted, and a powerful guarantee is provided for efficient chemical reaction.

The invention relates to the related technical field of rails, in particular to a clean type stacking machine ground rail which comprises a rail beam, and the surface of one side of the rail beam is fixedly connected with a ground rail cleaning mechanism. When the clean type stacking machine ground rail is used, a driving motor is started to drive a flow guide fan to rotate through the arrangement of an automatic cleaning mechanism; air flows in from the dust collection pipeline, is filtered by the primary filter screen to remove impurities, is secondarily filtered by the activated carbon filter screen and then flows out from the separation sealing plate, the fan supporting column supports the flow guide fan, the outer frame and other parts to fix the whole, and after the device is used for a period of time, the efficiency of the filter screens is affected by dust deposition. Clear water is sprayed out from the small spraying head to clean the filter screen after being pressurized by the pressurizing pipeline, sewage is discharged from the sewage outlet, the water pump is turned off after cleaning is finished, the waterproof spring can drive the movable pipeline to return to the original position, and by means of the self-cleaning mode, dust on the surface of the mechanism after the stacking machine runs is reduced, manpower consumption is reduced, cost is saved, and efficiency is improved.

The utility model discloses an energy system for a hydraulic rotary table, which comprises a power unit, a control unit, an energy accumulator unit and an auxiliary unit, the auxiliary unit, the power unit, the control unit and the hydraulic rotary table are sequentially connected, the energy accumulator unit is connected with the power unit and the hydraulic rotary table through the control unit, and the energy accumulator unit is connected with the hydraulic rotary table through the control unit. The control unit is connected with the auxiliary unit, and the hydraulic rotary table is connected with the auxiliary unit. The control unit comprises a non-return one-way valve assembly arranged between the power unit and the energy accumulator unit. The inlet end of the pre-charging pressure valve is connected with the outlet end of the check one-way valve assembly, the outlet end of the pre-charging pressure valve is connected with the hydraulic rotary table, and pre-pressure between the energy system and the hydraulic rotary table is established; the inlet end of the confluence valve is connected with the outlet end of the energy accumulator unit, the outlet end of the confluence valve is connected with the inlet end of the hydraulic rotary table, and the hydraulic rotary table is prevented from being impacted by large-flow oil supply of the energy system; and the unloading valve is arranged on the outlet end side of the energy accumulator unit, the inlet end of the unloading valve is connected with the outlet end of the energy accumulator unit, and the unloading valve is used for controlling the oil body in the energy accumulator unit to flow back. Through the combined use of the check one-way valve assembly, the pre-charging pressure valve, the converging valve and the unloading valve, the requirements of liquid supply and emergency stop unloading of a new-generation hydraulic rotary table under the instantaneous working condition are met.

The utility model discloses an aluminum profile convenient to install and use, which belongs to the technical field of aluminum profiles and comprises a main body component, a first aluminum profile and a second aluminum profile. The vertical assembly comprises a mounting frame, a movable shaft, a movable plate, a fixed groove and a first threaded rod; the mounting frame is placed on one side of the upper surface of the first aluminum material, the movable shaft penetrates through one side of the outer surface of the mounting frame, the movable plate fixedly penetrates through the center of the outer surface of the movable shaft, the fixing groove is formed in the middle of the outer surface of the movable plate, and the first threaded rod penetrates through the interior of the mounting frame. According to the utility model, the fixing column is pressed downwards to penetrate through whether the contact surfaces of the second aluminum material and the fixing column are attached or not, if the contact surfaces are well attached, the second aluminum material and the first aluminum material can be ensured to be vertically placed, whether the aluminum profiles are vertical or not during connection can be quickly judged, and the overall stability of the structure is enhanced by vertically installing the aluminum profiles; and the loading capacity of the structure is also improved, so that the structure can bear larger weight and pressure.