191 results about "Caustic substance" patented technology

The invention discloses a hydrofluoric acid reaction furnace deslagging device and method, and relates to the technical field of slag removal, the hydrofluoric acid reaction furnace deslagging device comprises a supporting frame and a recovery frame, and further comprises a butt joint device, a reaction furnace body is fixedly installed on the inner wall of the supporting frame, and a feeding pipe is fixedly installed on the circumferential surface of the reaction furnace body; a discharging pipe is fixedly installed on the circumferential face of the reaction furnace body, an electric valve is fixedly installed at the bottom of the reaction furnace body, a slag discharging pipe is fixedly installed at the bottom of the electric valve, and the butt joint device comprises a recycling plate, a connecting ring, an auxiliary groove, a cambered surface rod, a stabilizing frame, a T-shaped rod, a fixing groove and a linkage plate. The T-shaped rod moves in the direction close to the slag discharging pipe to be in contact with the fixing groove and fixes the slag discharging pipe and the recycling frame, leakage of hydrofluoric acid or other corrosive substances can be effectively prevented through accurate butt joint, and therefore harm to the environment and operators is reduced.

The invention relates to a preparation method of a bis (fluorosulfonyl) imide salt solution. The preparation method comprises the following steps: S1, mixing a certain A salt and a polar non-aqueous solvent, and dropwise adding bis (fluorosulfonyl) imide for reaction; and S2, after the reaction is completed, adding a salt B into the reaction liquid to remove impurities. Water is not generated in the reaction process, and the imidodisulfuryl fluoride cannot be decomposed to generate corrosive substances; the hydrogenation form of the byproduct salt is insoluble in the non-aqueous solvent and can be recycled through reaction; by adding the salt A and the salt B, trace unfavorable impurities are removed at a time, the requirement for the purity of the raw material imidodisulfuryl fluoride is low, subsequent complex purification processes such as crystallization and drying do not exist, the product can be directly used for preparation of a battery electrolyte after concentration adjustment, large-scale production of the product is facilitated, and the product has good storage stability.

The invention provides an electrolyte, a preparation method thereof and a lithium ion battery, the electrolyte comprises an organic solvent, an additive and a lithium salt, and the additive comprises an additive A. The additive A is added into the electrolyte, and the imidazole group in the additive A enables the additive A to participate in positive electrode film formation and negative electrode film formation, so that the stability of a solid electrolyte interface film is improved; in addition, the additive A can be used as a Lewis base to capture H2O and corrosive substances such as phosphorus pentafluoride and hydrofluoric acid in the battery, so that side reactions between water, gas and the corrosive substances and other components in the battery are reduced; in addition, the cyano group, the cyanoethyl group or the dimethylene cyano group and other groups in the additive A can be used as Lewis base to adsorb hydrofluoric acid. And the additive A can improve the stability of interface films of the positive and negative solid electrolytes and reduce side reactions between water, gas and corrosive substances and other components in the battery, so that the high-temperature storage performance and the cycle performance of the battery are improved.

The invention provides a floating type liquid level switch measuring device, and belongs to the technical field of liquid level measurement. The floating type liquid level switch measuring device comprises a pipeline which is connected with a container for accommodating liquid to be measured; the floating ball assembly is arranged in the pipeline, the strain gauge is arranged in the pipeline, and the strain gauge is connected with the floating ball assembly; the alarm switch piece is arranged in the pipeline, the alarm switch piece corresponds to the strain gauge, when the liquid to be measured in the container is measured, the floating ball assembly moves up and down along with the change of the liquid level of the liquid to be measured, the strain gauge deforms along with the floating ball assembly, and then the alarm switch piece is triggered to act. The suspension type liquid level switch is adopted, the liquid level can be accurately measured outside the liquid level, stable performance can be kept in various severe chemical environments, corrosion of corrosive substances is effectively resisted, the electrode plate does not need to be arranged in the liquid level, and corrosion to the electrode plate is effectively avoided.

A computer-implemented approach has been developed to estimate corrosion rate (100) in a section of a pipe transmitting a corrosive substance. A trained surrogate model (60) is provided to output an estimated value of maximum near-wall velocity (70) of the substance in the pipe section. The estimated value of maximum near-wall velocity (70) is then fed into a computerized electrochemical model (80), together with electrochemical parameters (90) associated with the corrosive substance, which electrochemical model then determines an estimated corrosion rate (100) imposed on the pipe section by the corrosive substance. The surrogate model is trained using results of a full physics-based simulation. Once it has been trained, the surrogate model can generate the estimated value of maximum near-wall velocity (70) much faster than the full physics-based simulation can.

The utility model discloses a balance valve waterproof structure which comprises a valve body, an actuator shell is installed at the bottom of the valve body, the actuator shell is provided with an upper shell and a lower shell, a sealing part is installed on the lower shell, the sealing part is provided with two rectangular plates, guide grooves are formed in the two rectangular plates, and the guide grooves are communicated with the upper shell and the lower shell. Convex blocks are arranged in the two guide grooves in a sliding fit mode, springs are installed in the guide grooves, and the two ends of the springs are connected with the convex blocks and the inner walls of the guide grooves correspondingly. Under the matching action of a first U-shaped ring and a convex block, an actuator shell is installed, the convex block is pushed through a spring, so that the first U-shaped ring and a second U-shaped ring are close to the inner side till the two ends make contact with each other, the connecting position of an upper shell and a lower shell is sealed, the sealing performance is improved in cooperation with a sealing strip, and tiny gaps at the connecting position are effectively sealed; intrusion of water, moisture and corrosive substances is prevented, the service life of the actuator is prolonged, and stable operation of the valve is guaranteed.

The utility model relates to the field of sole structures, in particular to a sewing type outsole which comprises a sole plate, a sewing ring and a dustproof ring, the lower end of the sewing ring is fixed on the upper end face of the sole plate, the sewing ring surrounds the edge of the sole plate, an inner sewing groove is formed in the inner side of the sewing ring, and an outer sewing groove is formed in the outer side of the sewing ring. The lower end of the dustproof ring is fixed to the upper end face of the shoe sole plate, the dustproof ring surrounds the sewing ring, a sewing working area is arranged on the lower side in the outer sewing groove, and the upper end face of the dustproof ring is higher than the sewing working area. The dustproof ring can play a role in preventing corrosive substances such as rainwater and soil from being in contact with the sewing thread, the situation that the toughness and strength of the sewing thread are reduced under the corrosion effect is avoided, the vamp is not prone to being separated from the shoe bottom plate, the attractiveness of the shoe is guaranteed, and the comfort degree of wearing the shoe is also guaranteed; and dirty water can be effectively prevented from wetting the bottom of the vamp, so that the dirty water is prevented from diffusing upwards from the vamp and diffusing into the shoe, and the cleanness of the vamp and the dryness and comfort in the shoe are ensured.

The utility model discloses an aluminum cellular board curtain wall, and relates to the technical field of curtain wall boards. The aluminum honeycomb panel comprises an aluminum honeycomb panel body, a corrosion-resistant layer is adhered to one side wall of the aluminum honeycomb panel body in a stacked mode, a waterproof layer is adhered to the surface of the corrosion-resistant layer in a stacked mode, and an aluminum single plate is adhered to the other side wall of the aluminum honeycomb panel body in a stacked mode. According to the aluminum honeycomb panel, moisture and corrosive substances in external air are prevented from being in direct contact with the aluminum honeycomb panel through the aluminum veneer and the corrosion-resistant layer of the aluminum honeycomb panel surface layer, the corrosion-resistant layer further plays a role in isolation and protection, the service life of the aluminum honeycomb panel is prolonged, and the aluminum veneer and the waterproof layer form a waterproof isolation layer, so that the service life of the aluminum honeycomb panel is prolonged. The aluminum honeycomb plate is prevented from being in direct contact with moisture, moisture or corrosive substances, the heat bridge effect is restrained through the clamping effect of the aluminum honeycomb plate, the corrosion-resistant layer, the waterproof layer and the aluminum single plate through the U-shaped metal edge sealing strip, the heat insulation performance is improved, and the moisture, the moisture or the corrosive substances can be prevented from being in contact with curtain wall materials through the edges of the aluminum honeycomb plate, the corrosion-resistant layer, the waterproof layer and the aluminum single plate.

The utility model discloses a multi-pass switching valve of liquid chromatography tandem mass spectrometry, and belongs to the technical field of multi-pass switching valves. Comprising a switching valve and further comprises a protective shell used for protecting the switching valve, the protective shell comprises a cylindrical shell body, the top of the shell body is detachably connected with a shell cover, a first threaded hole is formed in the end of the shell body, a first threaded rod used for being screwed into the first threaded hole is integrally formed on one side of the shell cover, and an opening used for the end of the switching valve to stretch out is formed in the shell cover. And a cylinder for protecting the end part of the switching valve is integrally formed at the top of the opening on the shell cover. According to the switching valve, when the switching valve is in contact with corrosive substances, dust or water vapor and the like, the external substances cannot enter the switching valve, corrosion and pollution to the interior of the switching valve cannot be caused, normal operation of the switching valve and the purity of fluid in the valve cannot be affected, the service life of the switching valve cannot be shortened, and the switching valve is very convenient to use.

The invention relates to the technical field of dish-washing machines, and discloses a dish-washing machine shunt valve with an antibacterial function and a dish-washing machine. The water diversion valve of the dish-washing machine comprises a water cup with a water diversion cavity, a water inlet connecting pipe connected with a water inlet of the water diversion cavity, a water diversion valve cover fixed to a water outlet of the water diversion cavity in a sealed mode, a water diversion piece arranged in the water diversion cavity and used for controlling a diversion connector of the water diversion valve cover to be communicated, and a water diversion driving mechanism used for driving the water diversion piece to rotate. The water distribution valve cover and the water distribution piece are coaxially arranged, the water distribution piece is provided with a flow distribution hole, and the bottom of the water distribution piece is provided with an antibacterial module; according to the dish-washing machine shunt valve, the bottom space of the water diversion piece is ingeniously used for arranging the antibacterial module, breeding of bacteria in water flowing through the water diversion cavity can be effectively restrained, the bacteria content in circulating water is reduced, and therefore residual bacteria on the surface of cleaned tableware is reduced, the health of people is guaranteed, and the cleaning effect of the dish-washing machine is improved. Corrosive substances in the water diversion cavity are prevented from being generated, and the service life of the water diversion valve and other components is prolonged.

The utility model discloses a kind of plastic particles with good compression resistance effect and corrosion resistance, related to plastic particle technical field, comprising: outer protective shell and reinforcing ring, the outer surface inside of outer protective shell is fixedly installed with reinforcing ring, outer protective shell is located the outermost side of plastic particle, directly with outside environment contact, reinforcing ring is fixedly installed in the outer surface inside of outer protective shell, both cooperate with each other, initially build up the protection and support framework of plastic particle, the inside of reinforcing ring is installed with compression ring rib, through multilayer protection from outside to inside wearproof anticorrosive outer layer, antioxidant barrier layer, efficient anticorrosive additive layer etc., layer by layer, synergistically resist various corrosion medium, compared with the single protection of conventional plastic particle, greatly prolong the service life in corrosive environment, while sealing adhesive layer eliminates the hidden danger that corrosive substance invades from interlayer gap, further strengthens the protection effect.

The utility model discloses an anti-corrosion transformer oil seal which comprises an oil seal body, an anti-corrosion gasket is arranged on the inner surface of the oil seal body, a sliding block is fixedly connected to the outer surface of the anti-corrosion gasket, an inserting groove is formed in the lower surface of the anti-corrosion gasket, and an L-shaped inserting block is fixedly arranged on the inner surface of the inserting groove. The lower end of the L-shaped inserting block is fixedly connected with a slope block, the outer surface of the slope block is slidably connected with a connecting block, the outer surface of the connecting block is fixedly connected with a limiting ring, and the end, away from the slope block, of the connecting block is fixedly connected with a pressing block. According to the transformer oil seal, chemical substances in transformer oil and corrosive substances in the external environment can be effectively resisted through the arrangement of the anti-corrosion gasket, so that the service life of a transformer is prolonged, meanwhile, the anti-corrosion gasket can be replaced through the arrangement of the sliding block, the inserting groove, the L-shaped inserting block, the inclined plane block, the connecting block, the limiting ring, the pressing block, the spring and the partition plate, and therefore the practicability of the oil seal is improved.

The utility model relates to a coastal area fire pool structure, a main body is a fire pool, the side wall of the fire pool is provided with a water inlet pipe extending out of the fire pool, and the water inlet pipe is connected with a floating ball valve; an isolation chamber is defined in the fire pool through an enclosing wall, and the floating ball valve and the water inlet pipe are arranged in the isolation chamber; the bottom of the isolation chamber is provided with a water outlet communicated with the fire pool; and the top of the isolation chamber is detachably connected with a cover plate. The isolation chamber is used for protecting the floating ball valve from sea wind erosion, the cost can be saved, the opportunity that chloride ions and other corrosive substances directly make contact with the floating ball valve can be effectively reduced, and therefore the corrosion process of stainless steel is delayed, and the service life of the floating ball valve is greatly prolonged.

The anti-corrosion disposable heat preservation sleeve comprises a heat preservation sleeve body, the heat preservation sleeve body sequentially comprises an outer-layer PET film, an aluminum oxide coating and an inner-layer PET film from outside to inside to form a three-layer composite structure, and an elastic closing opening is formed in the opening end of the heat preservation sleeve body; the outer PET film and the inner PET film are films formed by processing food-grade polyethylene glycol terephthalate, the thickness of the aluminum oxide coating is equal to that of the aluminum oxide coating, the reflection performance of light can be improved by compositing the PET films on the inner surface and the outer surface of the aluminum oxide coating, the surface of the aluminum oxide coating is brighter, and the service life of the aluminum oxide coating is prolonged. Therefore, the decorative effect and the visual attraction are improved. And a layer of PET film is compounded, so that the corrosion of water and corrosive substances can be effectively prevented, the aluminum oxide coating is prevented from being oxidized and damaged, and the service life of the aluminum oxide coating is prolonged. And in a cold environment, the normal use of the aluminum oxide coating under a low-temperature condition is ensured. And the adhesive force between the coating and the surface of the aluminum oxide coating can be enhanced.

The utility model discloses a road protective barrier cleaning device which comprises a base, a plurality of pulleys, two clamping mechanisms, a mounting block, a translation mechanism, two extension rods, two stabilizing mechanisms, a push rod, a rotating mechanism and a supporting mechanism, the plurality of pulleys are mounted on the base, and the push rod is arranged on the base; the supporting mechanism is installed on the base, and the two clamping mechanisms are installed on the two sides of the supporting mechanism. The mounting block is arranged on the supporting mechanism, and open grooves are formed in the two sides of the mounting block; the two stabilizing mechanisms are arranged on the two sides of the mounting block correspondingly. The rotating mechanism is arranged in the mounting block and comprises a rotating disc and a stand column, and the rotating disc is arranged on the supporting mechanism; the translation mechanism is installed on the stand column. Therefore, accumulated dirt, moisture and corrosive substances can be removed by additionally cleaning the bottom surface of the protective barrier, and the aging and corrosion of a protective barrier material are prevented, so that the service life of the protective barrier is prolonged, and the protective performance of the protective barrier is improved.

The present invention belongs to the field of radioactive waste treatment in nuclear power plants, and particularly relates to an automatic metering and neutralizing device and method. The waste packages after the "evaporation and drying" technology contain strongly corrosive substances, which do not meet the requirements for the harmless treatment and disposal of radioactive waste to ensure permanent safety. The present invention includes an automatic metering unit and an automatic neutralizing unit, so that the radioactive concentrated waste liquid first enters the metering and neutralizing tank for metering before drying in the barrel, and then according to the metering result and the PH automatic measurement and dosing controller, calculates the amount of the added medicament, controls the type of the medicament required for neutralization, and uses a stirring paddle for stirring to effectively neutralize the radioactive concentrated waste liquid in the metering and neutralizing tank, and then conducts drying treatment. The present invention realizes the automatic control and remote monitoring of operations in the radioactive area, and moreover ensures that the treated radioactive waste packages do not contain strongly corrosive substances, meeting the requirements for waste package disposal and national standards.

The flange barrel with the anti-corrosion film structure comprises a barrel body, a base is arranged at the bottom of the barrel body, a lifting groove is formed in the center of the top of the base, a lifting containing plate is arranged at the top of the lifting groove, and a containing groove is formed in the center of the top of the lifting containing plate. The inner wall of the barrel body is fixedly connected with an anti-corrosion film layer, and a movable groove is formed in the position, close to the bottom, in the base. According to the flange barrel with the anti-corrosion film structure, the anti-corrosion film layer is fixedly connected to the inner wall of the barrel body, meanwhile, through the unique bottom structure design, the resistance of the flange barrel to ground corrosion is greatly improved, and in an industrial production site, when the flange barrel is placed on the ground where corrosive substances such as acid, alkali and salt possibly exist, the corrosion resistance of the flange barrel is greatly improved. The heightening plate at the bottom of the barrel body is clamped with the placing groove, so that the bottom of the barrel body is not in direct contact with the ground, and corrosive substances are prevented from directly corroding materials at the bottom of the barrel body.

A laminate is prepared, comprising an insulating plate, a base metal film formed on the insulating plate, and a sensing metal film. The sensing metal film is formed on at least a portion of the base metal film and is more susceptible to corrosion by corrosive substances and has a lower resistivity than the base metal film. A corrosion environment monitoring sensor is configured with a frame containing the laminate, having an opening in the lateral direction, and having a gas channel for forming corrosive substances internally. The resistance between two points on the base metal film of the sensor is detected, and the type of corrosive substance is determined based on the change in resistance over time.

The utility model provides a smoke dust measuring device, which relates to the technical field of smoke dust measurement and comprises a separating mechanism, the separating mechanism comprises a detection box, a supporting mechanism is arranged at the bottom of the detection box, an observation window is arranged on the inner wall of a clamping groove formed in one side of the detection box, and a base is arranged at the top of the detection box. According to the utility model, the water vapor in the smoke dust is separated through the installed separation mechanism, so that the mixing of smoke dust particles and the water vapor can be effectively reduced, the smoke dust measurement accuracy is improved, and the existence of the water vapor possibly influences the concentration and distribution of the smoke dust, so that the content of the smoke dust can be more accurately detected after the water vapor is separated; the water vapor in the smoke dust is separated, so that the corrosion and damage to the detection equipment can be reduced, the service life of the equipment is prolonged, the water vapor possibly contains corrosive substances, the detection equipment can be damaged if the water vapor is not separated, and the detection equipment can be effectively protected by separating the water vapor.

The present application discloses a graphene composite material and a preparation method thereof, belonging to the technical field of wave-absorbing materials. In the preparation method of the graphene composite material provided by the present application, graphene and single-walled carbon nanotubes form a sponge skeleton material, and magnetic particle powders are filled in the gaps of the skeleton. The skeleton composed of graphene and carbon nanotubes is more stable, and the magnetic particle powders are also beneficial to improving the hysteresis loss of the material. Moreover, the sponge-like substrate has a large number of pore structures, which is beneficial to extending the absorption path of electromagnetic waves and improving the electromagnetic wave absorption efficiency, thereby enhancing the absorption capacity of the material. After acetylene pyrolysis, it is deposited in the surface gaps of the material, and the surface defects and uncovered pores of graphene are repaired or coated by an amorphous carbon layer. The amorphous carbon layer can effectively prevent the skeleton structure from directly contacting with water or other corrosive substances and maintain the stability of the internal structure. It can be seen that the graphene composite material prepared by this method has both high structural stability and high wave-absorbing efficiency.

A large-diameter polyethylene blended chlorinated polyethylene multi-winding structure wall composite pipe joint relates to the technical field of pipeline connection, and is characterized in that a multi-winding composite pipeline, polyethylene blended chlorinated polyethylene, a sealing strip and a limiting groove are matched with one another, and the polyethylene blended chlorinated polyethylene material has good corrosion resistance; the sealing strip can resist various chemical media and corrosive substances, is suitable for being used for a long time in a severe environment, has good sealing performance, is beneficial to ensuring the sealing performance and stability of the connecting position of the multi-winding composite pipeline, reduces the risk of leakage and avoids dislocation or movement in the installation process, and the sealing strip is inserted into the limiting groove, so that the sealing strip is prevented from being damaged. The connecting stability and reliability of the two multi-winding composite pipelines are enhanced, the risk of movement or looseness caused by external force or environmental changes is reduced, after the sealing strips are correctly inserted into the limiting grooves, the sealing performance is more effectively kept, and medium leakage or external matter entering the two multi-winding composite pipelines is prevented.

The invention discloses a corrosion-resistant ventilation cabinet for scientific research experiments, and relates to the technical field of laboratory equipment, the corrosion-resistant ventilation cabinet comprises a cabinet body, a lifting sliding door is slidably connected to the upper part of the front side of the cabinet body, and a ventilation mechanism is arranged at the upper part in the cabinet body; the ventilation mechanism comprises two ventilation boxes fixedly connected to the inner walls of the two sides of the cabinet body and a neutralization liquid box fixedly connected to the top of the inner side of the cabinet body, first filter plates are fixedly connected to openings of the ventilation boxes, first motors are fixedly connected to the interiors of the ventilation boxes, and a cleaning mechanism is arranged in the center of the interior of the cabinet body. According to the invention, gas containing corrosive substances in the cabinet body is treated through the first filter plate, the air guide fan, the air guide pipe and the neutralizing liquid box, so that the problem that the gas containing the corrosive substances is inconvenient to discharge in the prior art is solved, and the interior of the cabinet body is cleaned through the transmission screw rod, the threaded sliding block, the sliding plate, the telescopic hose and the cleaning brush; the problem that the interior of a cabinet body is inconvenient to clean in the prior art is solved.

The utility model relates to the technical field of vehicles, in particular to a pneumatic cleaning device for a battery pack of an electric vehicle, which comprises an air blowing pipeline and a nozzle group, one end of the air blowing pipeline is connected with an outlet of a brake air storage bottle of the electric vehicle, and the other end of the air blowing pipeline is connected with the nozzle group. Outlets of the nozzles face a battery pack of the vehicle, a valve is arranged on the air blowing pipeline, and the air blowing pipeline is blocked or connected by closing or opening the valve. Through the opening time of the control valve, the working pressure of the brake gas storage bottle can be ensured, and redundant high-pressure gas in the brake gas storage bottle is utilized to regularly blow gas to a to-be-cleaned part of the battery pack to remove accumulated dust, so that the accumulated dust of the battery pack and the accumulation of corrosive substances are effectively avoided, and a connector is protected. The redundant high-pressure gas in the brake gas storage cylinder is used as an energy source for pneumatic cleaning, the energy source is simple and easy to obtain, and the pneumatic cleaning does not introduce static electricity and other risk objects endangering the safety of the battery pack, so that the safety can be ensured.

The utility model provides a communication pipeline of a communication system, and relates to the technical field of communication pipelines, a pipeline and a pipeline mechanism, the pipeline mechanism is arranged on the inner side of the pipeline, through the arrangement of the pipeline mechanism, when the communication pipeline is used, through the arrangement of a protection assembly, a waterproof layer can prevent water from permeating into the pipeline from the outside of the pipeline, and the communication pipeline is convenient to use. The anti-corrosion layer can resist corrosive substances outside the pipeline, materials of the pipeline are prevented from chemical reaction, dryness and quality of the pipeline are guaranteed, the buffer assembly is arranged, the heat preservation layer can prevent the temperature inside the pipeline from being affected by external temperature change, and expansion or contraction of the pipeline is avoided. The size and the shape of the pipeline are affected, the stability and the strength of the pipeline are guaranteed, the pressure resistance of the pipeline can be improved through the supporting assembly, the safety and the integrity of the pipeline are guaranteed, interference outside the pipeline can be shielded through the shielding assembly, and the signal-to-noise ratio and the efficiency of the pipeline are guaranteed.

The utility model relates to an external UHPC steel pier anticorrosion structure, which comprises a steel pier, studs, an UHPC external structure layer and a built-in reinforcing mesh, the studs are welded on the outer surface of the steel pier, the UHPC external structure layer is arranged on the outer side of the steel pier, the reinforcing mesh is arranged in the UHPC external structure layer, and the reinforcing mesh is connected with the steel pier through the studs. The anti-corrosion purpose of the steel pier is achieved by wrapping the UHPC structural layer, the UHPC anti-seepage performance and durability are outstanding, the influence of corrosive substances on the steel pier can be well resisted, meanwhile, the structure construction is convenient and fast, the appearance quality is good, the anti-corrosion performance is outstanding, and meanwhile the site construction time is effectively shortened.

The invention discloses an ultra-high molecular weight polyethylene composite diaphragm for a high-performance lithium battery, and relates to the technical field of polyethylene composite diaphragms.The ultra-high molecular weight polyethylene composite diaphragm comprises a polymer diaphragm and first pores, and the polymer diaphragm comprises a coating, an antibacterial layer, a first microporous layer, a second microporous layer, a functional layer, a reinforcing layer and a polyethylene base film. According to the ultra-high molecular weight polyethylene composite diaphragm for the high-performance lithium battery, heat conduction is prevented through the functional layer, a safe buffer area is formed, further diffusion of heat or current is prevented, the reinforcing layer has good strength and toughness, and the polyethylene diaphragm is prevented from being broken when the lithium battery is overcharged or short-circuited; a multi-layer composite structure is formed through the arrangement of the first microporous layer, the second microporous layer, the second pores and the first pores, the distribution and flowing of an electrolyte can be improved, meanwhile, the antibacterial layer can effectively prevent impurities, microorganisms or other corrosive substances in the electrolyte from damaging the polyethylene diaphragm, and the service life of the polyethylene diaphragm is prolonged. And the overall performance of the polyethylene diaphragm for the lithium battery is improved.

The invention discloses a pickling agent and application thereof, and relates to the technical field of corrosion inhibitors. According to the pickling agent provided by the invention, the nicotinoyl methionine is applied to the hydrochloric acid, the nicotinoyl methionine is used as an adsorption type corrosion inhibitor, and the nicotinoyl methionine can quickly form a film on the surface of the steel in the process of pickling the steel by the hydrochloric acid, so that corrosive substances such as H2O, H3O < + >, Cl <-> and the like in an acidic medium are prevented from being diffused on the surface of the steel, and the corrosion inhibition effect is achieved. After the nicotinoylmethionine is added into a hydrochloric acid medium as the corrosion inhibitor, the corrosion rate of the pickling agent on the surface of the steel is remarkably reduced, the corrosion inhibition performance is remarkably improved, the corrosion rate of the pickling agent on the surface of the steel at normal temperature can be reduced to 1.654 g.m <-2 > h <-1 > or below, and the corrosion inhibition rate can be improved to 92.99% or above.

The utility model discloses an electric hot melting sleeve for a heat preservation pipeline connector, which relates to the technical field of electric hot melting sleeves and comprises a sleeve body and a reinforcing layer. Electric hot melting belts are fixed to the left side and the right side of the interior of the sleeve body, hot melting connectors are installed on the outer side faces of the electric hot melting belts, the sleeve body is a polyethylene sleeve, the reinforcing layer is fixed to the outer side face of the sleeve body, the outer side of the reinforcing layer is sleeved with a protective net, a through hole is formed in the reinforcing layer, and the reinforcing layer is nitrile rubber buna. The protective net is a steel spiral wire net; according to the electric hot melting sleeve for the heat preservation pipeline connector, the electric hot melting belt is matched with the sealing gaskets, the sealing performance of the connecting position of the electric hot melting sleeve and the heat preservation pipeline connector can be improved, meanwhile, the heat preservation layer can prevent heat in a conveying medium from being lost, and the heat preservation effect is good. And the anti-corrosion coating can prevent external corrosive substances from corroding the electric hot melting sleeve.

The utility model provides a cold plate, a battery pack and electric equipment. The cold plate comprises a base plate and a runner plate. The first body layer is arranged on one side of the substrate in the thickness direction. The first protective layer is connected to one side of the first body layer away from the substrate in the thickness direction. The first protective layer is suitable as a sacrificial layer capable of reacting with a corrosive substance. According to the cold plate provided by the utility model, the first protective layer is arranged outside the first body layer, so that the first protective layer is used as a sacrificial layer to react with corrosive substances in an application environment containing the corrosive substances, and the purpose of resisting corrosion of the corrosive substances to the first body layer is achieved; and therefore, the external corrosion resistance of the cold plate is improved.

The utility model relates to the technical field of geotechnical engineering anchor cable support, and discloses a grouting hole sealing bag suitable for a miscellaneous fill stratum, which comprises a steel strand, a hole sealing bag body is arranged outside the right side of the steel strand, and an exhaust hole is arranged on the left side of the hole sealing bag body. And bag fixing clamping plates are arranged outside the left side and the right side of the hole sealing bag body correspondingly, a plurality of isolation supports are evenly arranged on the opposite sides of the steel strands, and a grouting assembly is arranged on the left side of the hole sealing bag body. According to the utility model, through the design of a multi-layer composite structure, the bag can well adapt to the complex soil body environment of a miscellaneous fill layer, effectively resist the influence of non-uniform deformation and corrosive substances, prolong the service life of the bag and improve the hole sealing quality; the sealing performance and the installation stability of the bag in a miscellaneous fill layer are further enhanced, the reliability of grouting and hole sealing of the anchor cable is ensured, and the safety and the stability of an anchor cable supporting structure of the whole geotechnical engineering can be improved.