17results about How to "Cause corrosion" patented technology

The invention discloses a method for preparing a single-layer tungsten diselenide nanoband based on a space confinement strategy. By changing the flow and the growth time of hydrogen, effective control on the width and the thickness of a nanoband can be realized. The method comprises the following steps: uniformly spraying tungsten trioxide powder to one substrate, then covering the substrate by the other substrate, and forming micro reaction space which is of a 'sandwich'-like structure. Growth of a tungsten diselenide nanoband is carried out by utilizing a constant-pressure chemical vapor deposition method; physicochemical characteristics of a one-dimensional transition metal chalcogenide strongly depend on suspension key types on the edge of the one-dimensional transition metal chalcogenide, metallic properties are displayed by an ultranarrow band, and conversion from the metallic properties to semiconductor properties can be displayed from the edge to the center of a wider band; the tungsten diselenide nanoband is widely applied to micro-nano photoelectric devices due to the special property; industrial production of the tungsten diselenide nanoband can be realized through an experimental method of the invention.

The invention discloses equipment and a method for detecting the strength of an annular section of a large-diameter TA31 pipe, and relates to the technical field of pipes. According to the annular section strength detection equipment for the large-diameter TA31 pipe, through the design of a composite mechanism, the pipe is placed in the processing mechanism, the pipe space is restrained through the limiting mechanism, the pipe is prevented from moving in the inspection process, danger to workers is avoided, and therefore normal operation of the equipment is kept; the fixing mechanism controls the pipe to rotate and rub with the processing mechanism, so that the effect of cleaning the surface of the pipe is achieved, the situation that stains on the surface of the pipe affect the detection effect is avoided, a hydraulic rod controls a pressing plate to extrude the surface of the pipe, and the detection effect on the annular section strength of the pipe is achieved; therefore, the friction force on the surface of the pipe is increased, the pipe is prevented from shaking in the downward pressing process, and the operation stability is improved.

The utility model provides an EGR mixer which comprises a gas inlet section, a mixing section and a gas outlet section which are communicated in sequence, a waste gas inlet is formed in the top side of the mixing section, a liquid outlet is formed in the bottom side of the mixing section, a liquid condenser installed in the mixing section is further arranged in the mixing section, the liquid condenser comprises a cylinder, and the two sides of the cylinder are connected with the inner wall of the mixing section in a sealed mode through partition plates. A plurality of fins which are arranged in parallel are uniformly arranged on the barrel body, and through holes which are uniformly formed are formed in the barrel body between every two adjacent fins. According to the EGR mixer, water vapor in damp and hot waste gas is condensed and separated out through the fin refrigerant and the cooling device, the water vapor is prevented from entering an air cylinder, and corrosion to engine parts is avoided.

This utility model proposes a lightning protection conductor support bracket, comprising: a vertical support rod having an axially opposite first end and a second end; the first end is threadedly connected to a waterproof base component for fixing to the roof; the second end is threadedly connected to a conductor clamping component for installing the lightning protection conductor; the conductor clamping component includes a mounting base and two sets of symmetrically arranged clamping arms, the bottom of which is integrally formed with the mounting base, and a clamping cavity with an open port is formed between the two clamping arms; a radially protruding limiting step is provided in the middle of the inner side of each clamping arm, dividing the clamping cavity into an upper conductor receiving cavity and a lower adjustment cavity; the inner wall of the conductor receiving cavity is provided with an arc-shaped clamping surface adapted to the conductor. This method effectively improves the installation stability of the lightning protection conductor.

The invention relates to the technical field of pipeline cleaning, in particular to powerful dredging gel and a preparation method thereof. The efficient pipeline dredging gel is prepared from the following components in percentage by weight: 1.5 to 15 percent of thickening agent, 2 to 20 percent of alkali metal oxide, 10 to 40 percent of pypocholoride and the balance of solvent, and the thickening agent is prepared by compounding tetradecyl dimethyl amine oxide and sodium metasilicate pentahydrate. According to the invention, through special selection of the thickening agent, the viscosity and the stability of available chlorine are effectively considered, so that the effect of being applied to high-efficiency pipeline dredging for a long storage time is achieved.

The invention discloses a toxic and harmful gas monitor based on suspension of an unmanned aerial vehicle, relates to the technical field of chemical detection, and aims to solve the problems that most of existing monitors need to be manually carried to a site for detection, the automatic process of autonomous patrol and fixed-point monitoring is difficult to realize, and meanwhile, the existing monitors need to be regularly maintained and calibrated, so that the cost is low. According to the technical scheme, normal operation and accuracy of the device are ensured. The unmanned aerial vehicle mechanism and the control mechanism are designed, and the unmanned aerial vehicle body and the unmanned aerial vehicle remote controller are cooperatively used by an operator on the ground or a working face, so that the unmanned aerial vehicle body flies to a goaf needing gas detection for goaf gas monitoring; and monitoring information and video images are transmitted to the remote controller through the UWB positioning system and the 5G communication system, so that manpower and material resources are greatly saved, the working efficiency is improved, unmanned high-risk work is realized, and the safety coefficient of underground work is greatly improved.

The utility model provides a kind of drainage pipe network obstruction detection device, belong to drainage pipe network obstruction detection technical field. Including underground pipeline detection device, still include: cleaning assembly, cleaning assembly is placed in the one side of underground pipeline detection device, cleaning assembly includes the liquid storage tank rotating in the one side of underground pipeline detection device, the inside of liquid storage tank is provided with water injection passageway, the number of water injection passageway being set on liquid storage tank is two, the output end of water injection passageway is fixedly connected with cleaning sponge;Sealing assembly;By setting cleaning assembly, semicircular water injection passageway is symmetrically set on the both sides of liquid storage tank, after two kinds of cleaning agent are injected into different passageway respectively, cleaning sponge is quickly adsorbed, is evenly applied on camera, rotates water injection passageway, realizes the alternate use of cleaning agent and clean water, both guarantees cleaning effect, and prevents chemical residue from affecting lens definition or causing corrosion, to maintain the camera performance of camera.

The application discloses a kind of tertiary ammonium salt ionic liquid and preparation method thereof, it is first with di-n-butylamine and 1-bromoalkane as raw material preparation contains bromine tertiary ammonium salt, then in anhydrous ethanol, the reaction product phosphate of tertiary ammonium salt and potassium hydroxide solid and di(2-ethylhexyl) phosphate ester is reacted at room temperature, obtain light yellow solution and white solid potassium bromide;Solid potassium bromide is removed by filtration, rotary evaporation is removed reaction solvent, then is dried in vacuum, obtain tertiary ammonium salt ionic liquid.The application starts from the molecular structure design of ionic liquid, the prepared ionic liquid does not contain halogen, sulfur and other active elements, will not cause corrosion to spacecraft moving parts, and with good lubricating property, the friction-reducing and anti-wear performance in vacuum harsh environment is especially outstanding, compared with active service aerospace lubricating oil MACs, with more optimal friction-reducing and anti-wear performance, thus can be used as aerospace lubricating oil in lubricating engineering and space field obtains wide application.

The invention discloses a power station boiler hydroxyapatite scaling substance chemical cleaning method, and belongs to the technical field of power station thermal equipment chemical cleaning, and the method comprises the following steps: preparing a cleaning medium containing an organic chelating agent, a penetrant, a corrosion inhibitor and demineralized water, adjusting the pH value, heating, adding a cleaning auxiliary agent, injecting into a boiler system, carrying out circulation or immersion cleaning, and flushing. And finally, the boiler system is restored to the normal working state, and cleaning is completed. The chemical cleaning method comprises the following steps: selecting a cleaning medium aiming at hydroxyapatite scaling substances, controlling the medium concentration, the pH value and the cleaning temperature, and adding a cleaning assistant in the cleaning process. The cleaning method is simple, reliable and easy to implement, and the problem that hydroxyapatite scaling substances of the power station boiler are difficult to effectively remove in a traditional chemical cleaning method is solved.

This utility model discloses a nanofiltration membrane module for acid and alkali resistant high-salt wastewater, relating to the field of wastewater treatment technology. It includes a filtration chamber, inside which a nanofiltration membrane body is fixedly installed. The input end of the filtration chamber is fixedly connected to a wastewater pretreatment chamber, which includes a chamber body, a stirring assembly, a neutralization assembly, a water quality monitor, a wastewater output pipe, and a control terminal. In this utility model, the water quality monitor monitors the acidity, alkalinity, and salinity of the wastewater. The monitoring data is transmitted to the control terminal, which outputs corresponding control commands to open the corresponding secondary electrically controlled valve. The neutralization solution inside the solution storage tank enters the chamber body through the secondary electrically controlled valve and the solution output pipe, neutralizing the wastewater or settling salt ions in the wastewater, thereby reducing the acidity, alkalinity, or salinity of the wastewater and preventing corrosion of the nanofiltration membrane body.

This utility model relates to a parallel opening and closing pneumatic gripper, including a sliding base, a crank, and a cylinder for driving the crank to open and close. Two protruding plates are provided on the side of the cylinder near the crank, forming a mounting groove in which the crank is placed; the protruding plates are fixedly connected to the sliding base. Sealing elements are provided on both sides of the mounting groove, which cooperate with the sliding base to form a closed space, preventing external corrosion of internal parts. The crank consists of symmetrically arranged cranks, which are linked to the cylinder drive shaft via a rotating shaft, driving a sliding block to slide along the base, achieving precise opening and closing. The sliding block has a groove that cooperates with the crank's actuating head to improve motion accuracy. In an optimized embodiment, the sliding protruding plates and sliding grooves use rollers to reduce friction, and baffles are provided at both ends to prevent the rollers from falling off. This pneumatic gripper has a compact structure, good sealing performance, is suitable for harsh environments, and has a long service life.

The invention relates to a stoichiometric manganese oxide electrode material and a synthesis method thereof, through doping of at least five cations such as trivalent active cations, pentavalent and hexavalent cations, the valence state of manganese is between + 3.1 and + 3.9, and the valence state of manganese is still above + 3 after discharge, the trivalent active cations can provide a small part of capacity, and thus, the stoichiometric manganese oxide electrode material is obtained. The pentavalent and hexavalent cations play roles in stabilizing the structure and inhibiting manganese dissolution, and multiple ions play a synergistic effect, so that the long cycle stability of the manganese oxide positive electrode is improved; oxygen vacancy and compensation are realized through sulfur doping, so that the internal conductivity of the manganese oxide positive electrode made of the manganese oxide electrode material with the stoichiometric ratio to protons, Zn < 2 + > and Na < + > ions is improved; and a coating layer is formed on the surface of the manganese oxide positive electrode through PO4 < 3-> ions, so that manganese dissolution is further inhibited.

The application discloses a charging pile with a quick heat dissipation function for a new energy vehicle. In view of the technical problem that the charging pile occupies a large space of a public place, and the charging pile installed on a street is easily collided by a vehicle to cause electric leakage and harm to passing pedestrians, the application discloses a charging pile with a quick heat dissipation function for a new energy vehicle, which comprises a cylinder body, the cylinder body is provided with a cylinder cover, the cylinder cover is slidably connected with a charging column, a deep hole is formed in the side of the charging column away from the cylinder cover, a supporting ring is fixedly connected in the deep hole of the charging column, the cylinder body is provided with a first cavity, a first motor and a control terminal are installed in the first cavity, and the control terminal is electrically connected with the first motor. The control terminal is used for controlling the device to move downwards to the ground, the ground space is saved without affecting the charging effect, the pedestrians are prevented from being injured by the collision of the vehicle, and the safety is improved.

The utility model discloses an automatic dosing device for sludge treatment, which comprises a main body unit, the main body unit comprises a bottom plate and a treatment cylinder, the upper end face of the bottom plate is symmetrically and fixedly connected with two vertical plates, the treatment cylinder is arranged at the upper end of the bottom plate, a cylinder cover is arranged on the treatment cylinder, and two liquid storage cylinders are symmetrically and fixedly arranged on the cylinder cover. After treated sludge is discharged from the treatment barrel, the treatment barrel is rotated to the original position through the rotating assembly again, clear water is added into the treatment barrel, the barrel cover is placed on the treatment barrel again, the gear motor is started again, and the output end of the gear motor drives the mounting plate to rotate through the connecting rod, the fixing rod, the connecting plate and the circular ring; and the mounting plate cleans away sludge adhered to the inner wall of the treatment barrel through the cleaning brush bristles, so that the sludge is prevented from adhering to the inner wall of the treatment barrel for a long time, the sludge is prevented from corroding the treatment barrel, and the service life of the treatment barrel is prolonged.

This invention discloses a secondary water supply treatment device, relating to the field of water pollution control and treatment technology. It includes a secondary water supply storage unit, with a liquid preparation and filling unit located at the top of the inner cavity and a liquid supply unit located on the right side of the storage unit. The storage unit also contains a drive unit for deploying the liquid preparation and filling unit. This invention effectively reduces the amount of disinfectant used while ensuring disinfection and sterilization effects, lowering treatment costs and reducing the time required for disinfectant input and output, thereby improving treatment efficiency. Furthermore, it facilitates direct preparation of disinfectants inside the water tank without corroding the tank, eliminating the need for a separate dedicated plastic mixing container for manual preparation of disinfectants. It also allows for larger single-use preparations, reducing the need for multiple preparations and further improving treatment efficiency.

The utility model discloses a chain plate feeding desilting device, which comprises a chain plate feeder and a mud-stone separator, a desilting device is arranged below a chain plate of the chain plate feeder, the desilting device comprises an air knife, the air knife comprises an upper blade, a lower blade and side sealing plates, the upper blade and the lower blade are assembled together, and the side sealing plates surround two sides of the upper blade and the lower blade. A plurality of cavities communicated in sequence are formed between the upper blade and the lower blade, one end of each cavity communicated in sequence is communicated with an air inlet of the blade, the other end of each cavity communicated in sequence is communicated with an air outlet of the air knife, and the air outlets spray towards the chain plate feeder. Compared with the prior art, the air knife has the advantages that the mode that the multiple cavities are communicated is adopted in the air knife, then the cavities are sprayed to the chain plate through the exhaust port, high-viscosity soil on the chain plate is dried and blown out of the chain plate feeding machine, corrosion to the chain plate is avoided, the service life is prolonged, and meanwhile the problem that the high-viscosity soil adheres to the chain plate and is caked is solved.

The utility model provides a boost isolation transformer for an offshore wind turbine generator. The boost isolation transformer comprises a transformer body; the transformer body is coated with the shell; the shell comprises a side plate; heat dissipation frames are arranged on the three adjacent side plates; transversely arranged heat dissipation blades are arranged on the heat dissipation frame; a driving assembly arranged at the top of the heat dissipation frame is connected with the heat dissipation blades and a control device of the driving assembly; the control device comprises a supporting column penetrating through the x-direction center line of the cooling blade; the traction cables are connected with the clamping parts and are separately arranged on the two sides of the supporting column, and the baffles are arranged on the bottom surfaces of the heat dissipation blades and are connected with the traction cables. The heat dissipation frame is arranged on the transformer shell, collaborative optimization of efficient heat dissipation and protection functions is achieved through the design of the modular driving structure and the adjustable heat dissipation blades, and the problem that in the prior art, heat dissipation and rain prevention of an offshore transformer shell are difficult to achieve at the same time is solved.