17 results about "Corrosion engineering" patented technology

The utility model discloses a waterproof paint coating device for waterproof and anticorrosive engineering construction, which comprises a fixed plate, a storage barrel fixedly connected to the upper end face of the fixed plate, a spraying rod fixedly connected to one side of the fixed plate, a plurality of uniformly distributed nozzles fixedly connected to the lower end face of the spraying rod, and a lifting rod arranged on one side of the spraying rod. Two connecting rods are fixedly connected to the lower end face of the lifting rod, a scraper is jointly and fixedly connected between the two connecting rods, waterproof paint is effectively sprayed under the action of a storage barrel, a spraying rod and a spraying head, a spiral rod and a lifting block are in threaded connection under the action of a forward and reverse motor, and the spraying efficiency is improved through lifting of the lifting block. And the lifting rod and the scraper are driven to flexibly ascend and descend, the use height of the scraper is accurately adjusted in cooperation with use of the recognition block and the scale plate, it is guaranteed that the scraper can accurately grind the waterproof coating, and the construction quality of the waterproof coating is guaranteed.

The invention relates to the cross technical field of nuclear reactor engineering and corrosion engineering, in particular to a radioactive isotope tracing-based fuel cladding tube surface scale on-line measurement device, which comprises an injection control module for injecting a radioactive 59Fe solution into a coolant and adjusting and controlling the 59Fe content by analyzing the Fe ion concentration; the test module is used for testing the surface of the fuel cladding based on the coolant injected with the radioactive 59Fe solution; and the measuring module is used for collecting the radioactive activity of 59Fe in scale generated on the surface of the fuel cladding after the test and speculating the scale mass surface density. According to the method, the content of the 59Fe in the coolant is controlled, and the radioactive activity of the 59Fe in the scale deposit on the surface of the fuel cladding is detected on line, so that the mass of the corresponding 59Fe can be accurately calculated, the scale deposit mass is speculated, the scale deposit information on the surface of a cladding pipe is obtained in real time, and the dynamic change condition of the scale deposit is reflected in time.

The present invention belongs to the fields of chemistry, materials science, and corrosion engineering, and discloses a fluorescent metal corrosion inhibitor based on coumarin and furan heterocycles, as well as its preparation method and application. A simple and efficient Schiff base reaction is used to introduce a five-membered furan ring into the fluorophore coumarin. The Schiff base carbon-nitrogen double bond and the furan heterocycle, as well as the oxygen heteroatom of the fluorophore coumarin itself, are utilized to coordinate well with iron ions. This not only achieves metal corrosion inhibition, but also makes it possible to detect the amount of corrosion inhibitor used through fluorescence, avoiding environmental pollution caused by excessive use. The fluorescent metal corrosion inhibitor has an inhibition concentration of 7×10 ‑5 mol / L, it exhibits the best corrosion inhibition effect on carbon steel, and the corrosion inhibition efficiency can reach 73.25%.

The utility model discloses a dustproof anti-corrosion engineering telescopic rod sealing kit which comprises a sealing kit body arranged between a hydraulic cylinder body and a piston rod, and the sealing kit body comprises a fixing disc fixed to the top end of the piston rod, a sealing sleeve connected to the bottom of the fixing disc and a fixing ring fixed to the outer side of the top end of the hydraulic cylinder body. The sealing sleeve covers the piston rod, and the bottom end of the sealing sleeve is located on the outer side of the fixing ring. The sealing sleeve piece made of rigid materials is designed between the hydraulic cylinder body and the piston rod, when the hydraulic cylinder body stretches out and draws back, the fixing disc and the sealing sleeve can move along with the hydraulic cylinder body, in the whole moving process, the sealing sleeve can always sleeve the outer side of the connecting position of the hydraulic cylinder body and the piston rod, and the dustproof and waterproof effects are achieved; and the rigid sealing sleeve further has good strength and impact resistance and is not prone to damage, a good sealing environment is guaranteed, and meanwhile the good anti-collision protection effect on the connecting position of the hydraulic cylinder body and the piston rod can be achieved.

The invention belongs to the fields of chemistry, material science and corrosion engineering, and discloses a fluorescent metal corrosion inhibitor based on coumarin and furan heterocycle as well as a preparation method and application of the fluorescent metal corrosion inhibitor. Five-membered ring furan is introduced into fluorophore coumarin through a simple and efficient Schiff base reaction, the fluorophore coumarin is well coordinated with iron ions through Schiff base carbon-nitrogen double bonds, furan heterocyclic rings and oxygen heteroatoms of the fluorophore coumarin, metal corrosion inhibition can be achieved, the use amount of the corrosion inhibitor can be detected through fluorescence, and the application range is wide. And environmental pollution caused by excessive use is avoided. Under the conditions that the temperature is 30 DEG C, the corrosion inhibition time is 8 hours and the corrosion inhibition concentration is 7 * 10 <-5 > mol / L, the fluorescent metal corrosion inhibitor shows the best corrosion inhibition effect on carbon steel, and the corrosion inhibition efficiency can reach 73.25%.

The application belongs to the field of organic chemistry, material science and corrosion engineering, and discloses synthesis and application of a corrosion inhibitor based on rhodamine 6G. The fluorescent corrosion inhibitor LDS is obtained by synthesizing rhodamine 6G and hydrazine hydrate through a Schiff base reaction and salicylaldehyde. The corrosion inhibitor LDS not only has an inhibiting effect on carbon steel, but also can realize detection functions of corrosion iron ions and environment pH through a fluorescent signal, and further early warning of metal corrosion.

A multi-catalytic electrode and its preparation method and application in electrolyzing water to produce oxygen. The multi-catalytic electrode is a high-entropy alloy electrode with surface modification based on corrosion engineering, and is prepared by the following method: including selecting FeCoNiM high-entropy alloy as the conductive substrate of the electrode and the metal source during surface modification, processing into a substrate sheet, and removing the surface oxide layer of the substrate sheet; preparing a mixed solution of NaOH and NaCl; placing the substrate sheet in a hydrothermal kettle liner filled with a mixed solution of NaOH and NaCl; heating the hydrothermal kettle at a set temperature for a set time, so that the substrate sheet and the mixed solution of NaOH and NaCl undergo a hydrothermal reaction, and the FeCoNiM high-entropy alloy of the substrate sheet and the mixed solution of NaOH and NaCl undergo a corrosion reaction at high temperature and generate multi-catalytic active components in situ; and cooling the hydrothermal kettle to room temperature, washing the surface of the substrate sheet with deionized water and alcohol in turn to remove the residual solution, and obtaining a surface-modified FeCoNiM high-entropy alloy electrode after drying. The present invention also provides an application of the multi-catalytic electrode for electrolyzing water to produce oxygen.

The invention provides a structure for preventing foundation soil of a cooling tower PHC pile splicing connector from being corroded and a design method of the structure. The structure comprises the pile splicing connector, a pile top steel end plate, a cathode protection wire, a cathode protection outgoing line, an anode cable and sacrificial anodes, and the sacrificial anodes are connected with the anode cable and used for bearing current flowing through the pile splicing connector; wherein the potential value of the sacrificial anode is lower than that of the pile splicing joint, and metal corrosion of the pile splicing joint is replaced by oxidation reaction. According to the method, the conductors are arranged in a multi-layer mode to conduct reliable electric connection on steel of the PHC pile splicing connector, meanwhile, the number of sacrificial anodes meeting the working life limit is calculated and configured according to the number and scale of PHC piles and the foundation soil corrosion environment, and the problem that the PHC pile splicing connector is prone to damage in the pile sinking process due to the fact that an anti-corrosion coating is adopted is solved; the problems of corrosion prevention and durability of the PHC pile in a corrosive soil environment are solved, and the anti-corrosion engineering quality of the pile splicing joint of the PHC pile is guaranteed.

The utility model relates to the technical field of anti-corrosion engineering construction, in particular to a humidity detector for anti-corrosion engineering construction, which comprises a machine body, a detection probe is inserted outside the machine body, a protective cover is sleeved outside the top end of the detection probe, a rubber block is detachably connected to the lower side inside the protective cover, and the rubber block is fixedly connected with the machine body. Two cleaning brushes are slidably connected to the inner side of the rubber block, and the close sides of the two cleaning brushes are slidably connected to the left side and the right side of the exterior of the detection probe respectively; the device has the beneficial effects that the rubber block is mounted in the protective cover, and the two cleaning brushes are slidably connected to the inner side of the rubber block, so that when the protective cover sleeves the detection probe, the detection probe can be cleaned for the first time, and when the detection probe is pulled out of the protective cover, the detection probe can be cleaned for the second time, and the cleaning efficiency is higher; and cleaning supplies do not need to be frequently taken, the continuity of detection data is not influenced, and the detection data is more accurate.

The utility model belongs to the technical field of constructional engineering, and particularly relates to a waterproof anti-corrosion engineering coiled material laying and compacting device which comprises an electric moving frame, a mounting frame and a winding drum and further comprises a first threaded rod and an extrusion mechanism. A second threaded rod is installed on the installation frame through threads, the bearing plate is rotatably installed on the second threaded rod, the installation rods are installed on the sleeve through the springs, and the first extrusion roller and the two-way threaded rod are installed on the installation rods at the two ends correspondingly. The symmetrical mounting blocks are arranged on the bidirectional threaded rod, and the extrusion rollers II are rotationally mounted on the mounting blocks; the device can be suitable for waterproof coiled materials of different sizes through the fixing block installed on the first threaded rod, and a user can conveniently adjust the extrusion area of the extrusion mechanism through the two installation blocks installed on the two-way threaded rod.

This invention relates to the interdisciplinary field of nuclear reactor engineering and corrosion engineering, and in particular to an online measurement device for fouling on the surface of fuel cladding tubes based on radioactive isotope tracing, comprising: an injection control module for injecting radioactive... 59 Fe solution was added to the coolant, and the effect of Fe ion concentration on the coolant was analyzed. 59 Fe content is regulated and controlled; experimental module for use based on injected radioactivity. 59 The Fe solution coolant was used to test the fuel cladding surface; a measurement module was used to collect data on the scale that formed on the fuel cladding surface after the test. 59 Fe radioactivity is used to estimate the surface density of the deposited scale. This invention controls the amount of Fe in the coolant... 59 The Fe content, and its effect on the scale buildup on the fuel cladding surface. 59 Online detection of Fe radioactivity can accurately calculate the corresponding 59 The Fe mass is used to infer the scale mass, and the scale information on the surface of the cladding tube is obtained in real time to reflect the dynamic changes of scale in a timely manner.

The utility model discloses a water landscape support frame with water sample collection, including support frame base, the inside screw thread connection of support frame base has support frame body, the inside top screw thread connection of support frame body has support frame top, the inside slide connection of support frame body has net cylinder fixed block, the inside spigot joint of net cylinder fixed block has the connecting pipe, the top screw thread connection of connecting pipe has the conveying part, the bottom of net cylinder fixed block is provided with filter screen cylinder, the top spigot joint of conveying part has sampling part. Support frame base adopts high -strength corrosion -resistant engineering plastics, and it is disc -shaped and is equipped with antiskid line at bottom, can effectively enhance stability when placing in the water bottom, through the screw thread connection of base and support frame body, cooperate the location of first fixed ring, and the screw thread connection of support frame top and support frame body and the fixing of second fixed ring, make the whole device installation simple, and each component is connected closely.

The utility model relates to the technical field of anticorrosion engineering, and discloses a steel pipe surface paint sprayer for anticorrosion engineering, which comprises a processing table, two groups of electric slide rails arranged on the surface of the processing table, a plurality of groups of connecting plates arranged at the upper ends of the electric slide rails, a paint spraying box fixedly mounted at the upper ends of the connecting plates, and a plurality of groups of sprayers arranged at the lower end of the paint spraying box, a machining structure for preventing uneven paint spraying is arranged on the surface of the machining table, then when paint spraying needs to be conducted on multiple sides of the surface of the steel pipe body, a user can drive multiple sets of connecting plates to move relatively by starting an electric sliding rail, and at the moment, the connecting plates move to drive rotating rods and clamping frames on the side walls of the connecting plates to move; and at the moment, rotating gears on the side walls of the clamping frames rotate on the surfaces of toothed plates, the rotating gears rotate to drive rotating rods to rotate, the rotating rods rotate to drive the clamping frames to conduct overturning work, and therefore synchronous paint spraying work can be conveniently conducted on the multiple side surfaces of the multiple sets of steel pipe bodies, and the practicability of the device is improved.

The present invention discloses a method for preparing Ru and Al co-doped NiFe-OH hydrogen evolution electrocatalyst based on corrosion engineering and its application. The specific process is: placing foam metal in anhydrous ethanol, dilute hydrochloric acid and deionized water for ultrasonic cleaning in sequence to obtain material A; adding NiCl2, AlCl3 and RuCl3 into deionized water in sequence, then placing material A in the mixed solution and stirring, stirring and reacting at room temperature to obtain material B; washing material B with deionized water and anhydrous ethanol in sequence, and then drying in a blast drying oven at 80°C to finally obtain the target product, Ru and Al co-doped NiFe-OH hydrogen evolution electrocatalyst. The high-efficiency hydrogen evolution electrocatalyst prepared by the present invention has a high efficiency at 1 mol L –1 In KOH solution, only 85~110mV overpotential is required to reach 100mA cm –2 current density, and has excellent electrocatalytic hydrogen evolution performance.

The utility model provides a waterproof heat preservation anticorrosion engineering waterproof coiled material compacting and laying device which comprises a bottom plate, a walking wheel close to the rear end and a laying and winding roller close to the front end are arranged below the bottom plate, and a coiled material barrel located above the laying and winding roller is arranged at the top of the bottom plate. A sliding seat which slides front and back is arranged at the bottom of the bottom plate and located between the laying and winding roller and the walking wheels, a compaction roller is connected to the bottom of the sliding seat in an up-down elastic sliding mode, and a control mechanism used for controlling the sliding seat to slide front and back is arranged at the bottom of the bottom plate. According to the utility model, the sliding seat capable of sliding back and forth is arranged at the bottom of the bottom plate, and the bottom of the sliding seat is connected with the compaction roller in an up-down elastic sliding manner, so that when the bottom plate moves to lay the waterproof coiled material, the compaction roller below the sliding seat can roll the laid waterproof coiled material in a reciprocating manner when the sliding seat is controlled to move back and forth, and the waterproof coiled material is more attached to a laying surface.

This invention discloses a waterproofing treatment method for color steel roof panels, belonging to the field of building waterproofing and anti-corrosion engineering technology. It addresses the problems of loosening of seams, failure of joint sealing, and rust leakage caused by negative wind pressure and temperature deformation of metal roof panels. The method includes the following steps: S1, base layer pretreatment; S2, nail hole sealing treatment; S3, joint reinforcement treatment; S4, overall waterproof coating application; S5, anti-corrosion surface layer application. In this invention, the base layer pretreatment process of "two-stage fine grinding + rust-converting agent treatment" thoroughly removes floating rust, oxides, and stains. The passivation layer formed by the rust-converting agent can convert active rust into a stable substance, inhibiting the spread of rust from the source. Simultaneously, the passivation layer has good compatibility with the acrylic high-elasticity waterproof coating, significantly improving the adhesion strength between the coating and the base layer, preventing coating blistering and peeling, and solving the leakage risks caused by incomplete base layer treatment in existing methods.

The utility model discloses a wall surface impurity removing device for anti-corrosion engineering, which belongs to the field of anti-corrosion engineering and comprises a scraping plate, a collecting box fixedly mounted at the bottom of the scraping plate and a driving structure used for driving the scraping plate to move along a wall surface. The driving structure comprises a connecting box arranged on the side, away from the wall body, of the scraper blade, an electric telescopic rod fixedly installed on the connecting box, and an extrusion assembly arranged on the connecting box. According to the wall surface impurity removal device for the anti-corrosion engineering, the driving structure is arranged, and automatic multi-angle impurity removal of a wall surface is achieved through the extrusion assembly, the lifting assembly and the dust collection assembly; and the impurity removal efficiency is improved.