227results about How to "Avoid Corrosion Conditions" patented technology

The invention relates to a process for atomizing desulfurization waste water through recycled flue gas of a tower type boiler. The process comprises the steps that the desulfurization waste water of a desulfurization tower is drained to a stilling basin for preliminary sedimentation, and then the desulfurization waste water is pressurized through a pump and conveyed to a pipeline of a nozzle; part of the desulfurized flue gas is sent to the pipeline of the nozzle through a recirculation fan, so that the recirculation flue gas is in contact with the desulfurization waste water in the pipeline of the nozzle, and the initial temperature of the desulfurization waste water is raised; the nozzle is installed in a vertical flue located at the tail of the boiler, the desulfurization waste water is jetted and atomized, atomization liquid drops into the flue and evaporates quickly, and all ions in the desulfurization waste water are separated by crystallization quickly, captured by a dust remover when entering the dust remover along with the flue gas and discharged outward along with dust. By means of the design of the process, atomization performance of the desulfurization waste water is improved, evaporation of the desulfurization waste water is accelerated, blocking of a jet system can be prevented, the desulfurization waste water is effectively prevented from being jet to the pipe wall, the problem of corrosion of the wall surface of a flue which is caused easily when ordinary flues are used for treating desulfurization waste water is avoided, innocent treatment of the desulfurization waste water in the real sense is achieved, reconstruction investment is small, and operation cost is low.

The invention discloses an industrial waste heat type low-temperature multi-effect sea water desaltation system and a sea water desaltation method. The system comprises a flue gas waste heat recovery device used for preparing heat source steam and preheating seawater and a low-temperature multi-effect sea water desaltation device which utilizes the heat source steam to realize sea water desaltation treatment; the low-temperature multi-effect sea water desaltation device comprises a first-effect evaporator, a plurality of intermediate-effect evaporator, a final-effect evaporator and a condenser; the condenser is connected with a vacuum-pumping device; the first-effect evaporator is connected with a feeding seawater pipe on which a plurality of preheaters are serially arranged; a fresh water pipe between every two adjacent evaporators penetrates the preheaters. According to the invention, in-order water supply is adopted, so that the scaling and corrosion problems are solved, equipment cleaning and maintenance are reduced, and therefore the sea water desaltation cost is low; the low-temperature multi-effect sea water desaltation device is combined with exhaust heat utilization, so that comprehensive resource utilization is realized, the flue gas discharge temperature is lowered, the desulphurization efficiency is favorably improved and emission of pollutants is reduced.

The invention discloses a concentric pipe layered steam injection system and a method. A cyclone and a phase mixing device are arranged in a steam inlet passage of a steam distributor of the concentric pipe layered steam injection system, the outlet end of the steam inlet passage is respectively connected with a first steam outlet passage and a second steam outlet through a dryness distribution chamber, an inner steam injection flow passage and an outer steam injection flow passage of a well opening device are respectively connected with a steam distributor through an inner steam injection opening and an outer steam injection opening, a concentric type layered steam injection pipe post is connected under the well opening device and realizes the steam injection to a first underground oil layer through the concentric steam distributor arranged on an outer steam injection pipe post, and the steam is injected to a second underground oil layer through an inner steam injection pipe post. The steam dryness from a boiler can be regulated, and in addition, the double-flow-passage layered steam injection is realized, so the accuracy of the steam injection quantity is ensured, simultaneously, certain compensation is provided for the thermal stress deformation generated by the pipe posts through high temperature in the well in the steam injection process, the steam injection effect is improved, and simultaneously, the occurrence of the condition of the pipe post damage is avoided.

The invention discloses a high-intensity corrugating medium and a preparation method thereof. According to the technical scheme, the high-intensity corrugating medium is prepared from, by weight, 700-800 parts of waste paper, 100-150 parts of waste slag pulp, 40-60 parts of starch, 80-100 parts of water and 5-20 parts of additive; the additive is prepared from oxidized starch, a dispersing agent, a non-ionic macromolecular flocculating agent, a surface sizing agent, a sterilizing agent, an antifoaming agent and a flow aid; the surface sizing agent is prepared from 0.01-0.05 part of starch acetate, 0.03-0.05 part of aluminum potassium sulfate dodecahydrate and 0.03-0.05 part of sodium metaaluminate, wherein the effects of mating reaction generated among starch acetate, aluminum potassium sulfate dodecahydrate and sodium metaaluminate can make crosslinking performance among fibers good, the situation of equipment erosion caused by super-acid environment can be effectively avoided, and slightly excess aluminum potassium sulfate dodecahydrate is selected, so that the drying speed of the surface sizing agent is relatively high.

The invention discloses a vertical packaging machine for a soft package battery. The vertical packaging machine comprises a loading and unloading mechanism, a packaging mechanism, a gas-liquid separation system and an electric control device, wherein the loading and unloading mechanism is used for carrying out vertical clamping and transporting on the soft package battery which is processed through a pre-sealing procedure; the packaging mechanism is arranged at the upper part of the loading and unloading mechanism for carrying out secondary packaging on the soft package battery; the gas-liquid separation system communicates with the packaging mechanism; and the electric control device controls the mechanisms and the system to achieve the packaging process. The vertical packaging machine for the soft package battery is ingenious in design, is more reasonable in control principle, structure configuration and operation mode, and is high in automatic degree; the problems of waste of an electrolyte in the past and incomplete air extraction since an air bag of a battery cell cannot be effectively punctured are solved; and guarantee of the quality of the battery cell is facilitated. When the vertical packaging machine works, the electrolyte mixed into the extracted gas can be separated and recycled; and the corrosion condition since the electrolyte enters a vacuum generator is avoided. The vertical packaging machine is rapid in action, high in efficiency and simple and convenient to operate; and the production efficiency of the soft package battery is improved.

The overpast working vehicle has the problem of that the fertilizer from the fertilizer drilling unit, adjacent to an engine arranged on the center of the body, falls down to the engine and corrupts the engine, thus the life of the engine is reduced. In order to overcome the problem, the present invention provides a working vehicle wherein an engine(12)is arranged on the center of the body and a fertilizer tank(4a)of the fertilizer drilling unit(4)is arranged on the back part of the body, which is characterized in that a structure of arranging a radiator(12c)in the back part of the engine(12)and discharging the waste heat of the engine to the back of the body by heat emission fan(12d)is provided, and an outputting device(4b)for outputting the fertilizer inside of the fertilizer tank(4a)is arranged on the fertilizer drilling unit(4), and a blower(4c)for sucking air from the back side of the radiator(12c)to generate pressure wind for conveying the fertilizer outputted from the outputting device(4b)is provided.

The invention discloses a pelleting extruder for FEP powder, which comprises two parallel screws, a machine barrel which is arranged outside the screws, a heating system, a cooling system and a vacuumizing and de-volatilizing system, wherein a fluorine gas charging port is formed on the machine barrel. The invention aims to provide the dual-screw extruder for the FEP powders, which can shorten anFEP production and processing flow, simply and efficiently remove unstable end groups in products, control volatile matters of the products and has the advantages of high-temperature resistance, corrosion resistance and long service period. The double-screw extruder of the invention can efficiently remove the unstable end groups in molecular links and control the volatile matters of the products;and meanwhile, the machine barrel has corrosion resistance and high-temperature formation resistance and is very suitable for processing the FEP powder.

The invention provides a novel activated carbon desorption tower. The activated carbon desorption tower comprises a heating section, a first transition section, a transition cooling section, a secondtransition section and a heat exchange cooling section which are arranged from top to bottom. The transition cooling section and the second transition section commonly form a buffer zone to make the first transition section not in direct contact with the heat exchange cooling section, so a sharp drop of the temperature of activated carbon in the desorption tower is avoided, thereby the activated carbon is prevented from scaling on the non-perforated surface of a tube plate in the cooling section, and the desorption tower is prevented from being clogged and corroded. The arrangement of the buffer zone avoids spontaneous combustion of bridging activated carbon directly falling to the bottom of the desorption tower.

The invention provides a seamless tank and a manufacturing method thereof. The manufacturing method includes the following steps that a circular flat plate raw material is obtained by blanking a film-covered material; punching is conducted on the circular flat plate raw material, so that a first U-shaped semi-finished product is obtained, and the external diameter of the first U-shaped semi-finished product is made to be at least 30% smaller than the diameter of the circular flat plate raw material; primary drawing is conducted on the first U-shaped semi-finished product, so that a second U-shaped semi-finished product is obtained, and the external diameter of the second U-shaped semi-finished product is made to be at least 35% smaller than the external diameter of the first U-shaped semi-finished product; secondary drawing is conducted on the second U-shaped semi-finished product till the second U-shaped semi-finished product reaches the tank body dimension, and then a third U-shaped semi-finished product is obtained; the top of the third U-shaped semi-finished product is trimmed, so that a tank body is obtained; and the tank body and a tank cover are connected into a whole to obtain the seamless tank. According to the seamless tank and the manufacturing method thereof, the pressure resistance strength of the tank body can be improved remarkably, and the tank body is not prone to deformation and good in corrosion resistance.

The invention discloses a clean sealed boiler flue gas desulfurization and denitration device with a filtering function. The device comprises a boiler body, a placement strip, a cooling tower, a fixing ring, and a water pump, the upper end of the boiler body is seamlessly connected with a smoke-outlet pipe, the outer wall of the cooling tower is seamlessly connected to the input end of a smoke-inlet pipe, the output end of a driving motor is flanged to a rotating shaft, the fixing ring is fixedly welded to the inner bottom end of the cooling tower, and the output end of a condensing tube is injection-connected to a collecting pipe. The clean sealed boiler flue gas desulfurization and denitration device with filtering function has a connection manner of slot connection between the smoke-outlet pipe and the connecting pipe and between the connecting pipe and the smoke-inlet pipe, a user can conveniently perform disassembly and assembly between the smoke-outlet pipe and the connecting pipe and between the connecting pipe and the smoke-inlet pipe, the situation that the pipe connection is too long and the inside is prone to blockage is avoided, so that the user can timely dredge and clean the inside of the pipe, and a sealing gasket is beneficial to increase of the sealing performance between the pipes.

A fuel supply module (M) where a coupler (48) for holding an outer terminal (49) is integrally projected from the upper surface of an installation base member (2) and where an inner terminal (52) and an electricity supply terminal (47) are electrically connected via a lead wire (50). The inner terminal (52) continues to the outer terminal (49) and projects from the lower surface of the installation base member (2). The electricity supply terminal (47) projects from the upper surface (18a) of an electric pump (Ep). A connection tube (29) is integrally formed with the installation base member (2), and a fuel discharge tube (30) of the electric pump (Ep) is fitted from below into the connection tube (29) so as to communicate with a fuel take-out tube (12). The inner terminal (52) is placed radially outside of the electric pump (Ep). A regulator valve (R) is attached to the installation base member (2), between the inner terminal (52) and the connection tube (29). The construction above enables the installation base member and the electric pump to be arranged close to each other, making the fuel supply module compact.

The invention relates to a waterless liquid coolant for an engine under extreme conditions and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing, by weight, 10 to 20 parts of imidazole ionic liquid, 10 to 30 parts of dipropylene glycol and 40 to 60 parts of propylene glycol under stirring so as to obtain base liquid; adding 0.2 to 2 parts by weight of an organosilicon antifoaming agent into the base liquid and carrying out uniform mixing under stirring; adding 0.7 to 8 parts by weight of a composite corrosion inhibitor into a mixed solution obtained in the previous step, carrying out heating to 70 to 80 DEG C and then carrying out uniform mixing under heating and stirring; and adding 5 to 10 parts by weight of a viscosity-reducing agent into a mixed solution obtained in the previous step and carrying out carrying out uniform mixing under stirring. The invention has the beneficial effects that the waterless liquid coolant has a freezing point of less than -65 DEG C and a boiling point of 255 DEG C, and has long-acting and excellent corrosion resistance; the waterless liquid coolant can rapidly form a metal oxide passive film on the surfaces of a plurality of metals so as to realize anticorrosion and construction of an activated adsorption film-forming corrosion mitigation system; special-effect aluminum corrosion inhibitor, i.e., sodium metasilicate, can protect aluminum structural members in the engine; and tolyltriazole can protect copper structural members in the engine.

The invention discloses a method for controlling rusting of a bottle cap by detecting water residue in skirt teeth of the bottle cap. The method comprises the following steps of: (1) preparing, i.e., selecting precision test paper with a pH (Potential of Hydrogen) range of 5.5-9.0 and equally dividing each test paper into 10 equal parts; (2) setting a judgment standard for water residue of the skirt teeth of the bottle cap; and (3) detecting a sample to be detected, calculating the water residue R of the skirt teeth of the bottle cap, distinguishing qualified products from unqualified products, handling the unqualified products which do not meet the standard through an adjustment and control method, rechecking until the products are qualified and then releasing. The invention establishes a method for detecting the water residue in the skirt teeth of the bottle cap; and parameters including blowing air speed, temperature and direction of a bottle cap skirt tooth blowing device behind a spray type pasteurization machine can be adjusted by a result which is obtained on the basis of the judgment standard and the detection method, so that the rusting situation of the skirt teeth of the bottle cap can be reduced and even avoided, the economic loss of a company is reduced, and the brand of the company and the satisfaction of customers are maintained.

The invention relates to the field of water heaters, in particular to a water heater water tank with a laterally-arranged automatic control water feeding device. The water tank comprises a water tank outer shell and an inner container arranged in the outer shell, a water inlet pipe is arranged on the side wall of the inner container, a water stopping valve is arranged on the water inlet pipe, and the water stopping valve is connected with a switch device for controlling the water stopping valve to be opened and closed. The switch device comprises a power source, a transmission component and a floating ball control component, the power source provides power through elastic force of itself, the transmission component transmits power to control the water stopping valve to be opened and closed, and the floating ball control component controls the power source and the transmission component to be connected and disconnected. When a floating ball is arranged at the position filled with water / the water supplementing position, the floating ball control component controls the power source and the transmission component to be disconnected / connected, and therefore the opening and closing states of the water stopping valve are controlled, and the functions of automatically stopping the water feeding process when the water heater is filled with water, and the function of automatically feeding the water are achieved. The floating ball is arranged on the side portion of the water tank to automatically control the water feeding device, and the use corrosion and aging conditions caused by the fact that the water stopping valve is soaked in the water for a long time are avoided.

The invention discloses a desulfurization and denitrification purification device for flue gas separation of an industrial boiler for a coal electricity plant. The desulfurization and denitrificationpurification device comprises a bearing base, a mounting port, a connection sleeve and a desulfurization and denitrification tower; an industrial boiler body is mounted at the upper end of the bearingbase; a connection rod is arranged on the inner wall of the connection sleeve; the input end of the desulfurization and denitrification tower is in seamless connection with the output end of a gas inlet pipe, and an ammonia gas inlet is formed in the left side of the top end of the desulfurization and denitrification tower; a driving motor is mounted on the right side of the ammonia gas inlet; awater tank is mounted on the right side of the desulfurization and denitrification tower; a water pump is mounted inside the water tank. In the desulfurization and denitrification purification devicefor flue gas separation of the industrial boiler for the coal electricity plant, both a gas outlet pipe and the gas inlet pipe are connected with a dustproof cover by clamping grooves, so as to facilitate assembling and disassembling between the gas outlet pipe and the dustproof cover and between the gas inlet pipe and the dustproof cover by a user, thereby facilitating dredging and cleaning up the inside of the gas outlet pipe and the gas inlet pipe by the user to benefit for ensuring working efficiency of the gas outlet pipe and the gas inlet pipe.

The invention discloses a novel energy-saving and environment-friendly construction fence. The inner side wall of a control frame is fixedly connected with a control device, the side wall of a first fence is fixedly connected with a fan, and the upper end of a second fence is fixedly connected with an alarming lamp; and clamping frames are fixedly connected to the ends, close to each other, of thefirst fence and the second fence correspondingly, and second connecting rods are slidably connected in the clamping frames. According to the novel energy-saving and environment-friendly constructionfence, solar cell panels and storage batteries are arranged additionally, through combination of the solar cell panels and the storage batteries, the effect of reasonably utilizing solar energy can beachieved, and thus the energy-saving and environment-friendly effects can be achieved; through arrangement of the control device and collaboration of multiple structures inside the control device, the effect of circular power outage can be achieved, thus the working time of equipment can be controlled more reasonably, and the energy-saving effect is achieved; and meanwhile, through combination ofspraying heads and a water pump which are arranged additionally, during normal working, the effect of dust falling can be achieved.

The invention discloses a charging seat, which comprises a charging seat upper shell, a charging seat lower shell and an electric connector. The charging seat upper shell and the charging seat lower shell are assembled to form an accommodating cavity, the electric connector is arranged inside the accommodating cavity, the accommodating cavity further comprises a telescopic part for driving the electric connector to extend out from the charging seat upper shell, the electric connector is fixed into the accommodating cavity in an initial state, when to-be-charged equipment is placed on the charging seat upper shell, the electric connector is mutually attracted with a magnetic part in a to-be-charged equipment body along with the telescopic part so as to extend out of the charging seat uppershell, and electric contact with the electric connector and a charging terminal of the to-be-charged equipment body is realized. When the charging seat is implemented, the electric connector is concealed in the accommodating cavity constituted by the charging seat upper shell and the charging seat lower shell, when being attracted by the outside, the electric connector extends out of the chargingseat upper shell to realize charging, and the technical effect that the electric connector is prevented from being exposed for a long term and corroded by the outside is achieved.

The invention belongs to the technical field of pipeline connecting equipment, and particularly relates to a petroleum and natural gas pipeline connecting and fixing pipe clamp support. The petroleumand natural gas pipeline connecting and fixing pipe clamp support comprises sliding blocks slidably installed in annular sliding grooves, and the sliding blocks are connected through connecting rods;the sliding blocks are sequentially provided with second threaded holes and third threaded holes; the second threaded holes penetrate through the sliding blocks, and the depth of the third threaded holes is one half of the height of the sliding blocks; containing grooves, first oil grooves and second oil grooves are formed in the sliding blocks provided with the third threaded holes, and third oilgrooves communicating with the second oil grooves are formed in the connecting rods; fourth oil grooves and fifth oil grooves are formed in the sliding blocks provided with the second threaded holes,and one-way valves are arranged in the first oil grooves and the fourth oil grooves; and supporting mechanisms are installed on the vertical outer end faces of the sliding blocks. According to the petroleum and natural gas pipeline connecting and fixing pipe clamp support, a layer of oil film is generated between the sliding blocks and the annular sliding grooves, corrosion is avoided, and the supporting capability of the pipe clamp support on a pipeline is improved; and in addition, vibration from a pipeline well protecting plate is greatly relieved while the supporting effect is guaranteed.

The invention relates to a transformation method for improving the economic cycle of aa hydrogenation device. The method comprises the following steps of adding pretreatment facilities for implementing raw oil desalination, dehydration and solid removal coupling processes; arranging inlet efficient inertial separation distributors and centrifugal jet flash evaporators inside a hot high-pressure separator and a hot low-pressure separator; arranging inlet efficient inertial separation distributors and efficient oil-water separating modules inside a cold high-pressure separator and a cold low-pressure separator; arranging efficient gas-liquid separating modules inside the front liquid separating tank and the rear liquid separating tank of a circulating hydrogen compressor; adding low-molecular oil online desalination and anti-corrosion facilities. The transformation method for improving the economic cycle of the hydrogenation device can effectively reduce the content of corrosive ions inprocesses of raw material pretreatment, reaction and fractionation of the hydrogenation device, avoid the problems of system corrosion, salt deposition and the like which are caused by excessive content of corrosive ions, prolong the safe operation cycle of the hydrogenation device, and meanwhile reduce the hydrogen loss and the system operation energy consumption of the hydrogenation device and improve the economic operation level of the hydrogenation device.

The invention discloses a PE flame-retardant electric power sheath tube. The PE flame-retardant electric power sheath tube comprises a sheath tube body, wherein the cross sectional area of the sheath tube body is of a circular structure; a circular hollow groove is formed in the center of the interior of the sheath tube body; the exterior of the circular hollow groove tightly packages an insulating layer; the exterior of the insulating layer tightly packages a shockproof layer; the interior of the shockproof layer is provided with a shockproof ball; the shockproof ball comprises an outer ring, a damping rod, a damping spring and an inner ring, the inner ring is arranged on the inner side of the outer ring, and the damping rod is arranged between the outer ring and the inner ring. According to the PE flame-retardant electric power sheath tube, the design of the insulating layer plays an insulation role, the occurrence of an electric shock accident due to electric leakage of an electric wire is avoided, the design of a thermal insulation and flame retardance layer can play a flame retardance role under the condition of a fire disaster, so that the situation that the fire burns more and more furiously is avoided, the spreading of the fire is blocked, and the internal electric wire is also protected from being damaged.

The invention relates to the field of stop buffers, in particular to a hidden stop buffer possibly avoiding damage. The hidden stop buffer comprises a stop buffer box buried underground, a first sliding groove and a second sliding groove are fixed to the inner portion of the stop buffer box, a control rack is sleeved with the first sliding groove, a duplicate gear is installed in the stop buffer box through a bearing and comprises a first gear and a second gear, the diameter of the first gear is smaller than that of the second gear, the first gear is engaged with the control rack, the second gear is engaged with a lifting rack, the other side of the lifting rack is sleeved with the second sliding groove, and a stop buffer body is fixed to the upper end of the lifting rack; and a stop buffer hole used for allowing the stop buffer body to extending out is formed in the stop buffer box, a sealing groove is formed in the side, close to the ground, of the stop buffer box, a sealing board used for covering the sealing groove is hinged to the stop buffer box, and a torsion spring is further connected between the sealing board and the stop buffer box. The provided automobile stop buffer can be hidden, the stop buffer is automatically lifted when a vehicle is in position, and damage is avoided.

The invention discloses an organic solar cell which comprises an anode of a collection hole, a cathode of a collection electron, a photoactive layer and an electron transfer layer, wherein the photoactive layer generates a hole-electron pair and is arranged between the anode and the cathode, and the electron transfer layer is arranged between the cathode and the photoactive layer. The electron transfer layer is a small organic molecule layer. Luminescent materials are mingled in the small organic molecule layer. The luminescent materials absorb the energy of a waveband and emit an optical waveband easily absorbed by the photoactive layer, wherein the waveband is not absorbed by the photoactive layer or the light absorption efficiency of the waveband is low. Therefore, the light absorption efficiency of the photoactive layer is improved, and the photovoltaic conversion efficiency of the solar cell is effectively improved.

The invention relates to a method for preparing potassium chloride, comprising the steps of mixing electric precipitation dust containing 10-25wt percent of potassium chloride with potassium chloride saturated aqueous solution in normal temperature and normal atmosphere at the weight ratio of 4-7:1, sufficiently stirring the mixture under a heating condition, obtaining potassium chloride solution and filter residue after thermal filtration, cooling and crystallizing the potassium chloride solution to obtain the finish product of potassium chloride. The method has the advantages of low water and energy consumption and high extraction yield of potassium chloride.

The invention discloses an embedded part construction process for an assembled building and belongs to the field of embedded part construction. According to the embedded part construction process forthe assembled building, by means of a double-way positioning mechanism, under the action of an upper hang-in-the-air positioning plate, an embedded part can be fixed into a form board from above in ahang-in-the-air state of no contact with the form board and a steel bar; meanwhile, under the action of an arch bridge positioning repair plate, a certain supporting force can be provided for the embedded part from below, thus the stability of the embedded part is effectively maintained, and occurrence of skewing of the embedded part during pouring is reduced; by means of the double-way fixing function on the embedded part, the workload of position adjustment of the embedded part at later stage is effectively reduced, and thus the efficiency of pouring the embedded part into a concrete layer of a pre-fabricated part is improved remarkably; and under the action of a foam board and a rainfall factor, moisture nearby the steel bar and the embedded part can be effectively absorbed, and the situation of severe rusting of the steel bar and the embedded part caused by too much accumulated water in the position where the steel bar and the embedded part are close to each other is effectively avoided.

The invention discloses a method of welding between a stainless steel stud and a steel plate. A hole is drilled in an end of the steel stud, and is filled with an aluminum agent. Because optimal designing is carried out on the form of the steel stud, and a magnetic ring is adopted for protection on the stainless steel stud, it is effectively avoided that a stainless steel stud is oxidized in the welding process, and the welding quality is guaranteed. Because the stainless steel stud is used instead of a Q235 carbon steel stud, the corrosion resistance of a welding joint of the stainless steelstud is improved, the situation that the stud becomes rusty in the service process of a product is effectively avoided, and service safety of the product is guaranteed; and the welding technology of the stainless steel stud is optimized, the technological parameters such as the welding current, the arc discharge length and the lifting height at the horizontal gesture, the vertical gesture and theposition of facing upward are determined, hot cracks during welding are avoided, the bending performance and the torsion performance of the welding point of the stud are improved, the hardness of thewelding point is reduced, and the comprehensive performance of the welding point is improved.

The invention discloses a protective sleeve for fiber grating strain sensors, which comprises an outer shell. The cavity of the outer shell is movably connected with an inner shell. The front surfaceof the outer shell is fixedly connected with a fixed block. The front surface of the inner shell is fixedly connected with a locking block. The top and bottom of the cavity of the outer shell are fixedly connected with rotating shafts. Rotating shaft slots are respectively arranged in the top and bottom of the inner shell. The rotating shafts are matched with the rotating shaft slots. Through thecooperative use of the rotating shafts, a moving block, a first wedge block, a moving rod, a shifting block, a spring, a moving plate, a second wedge block, an inserting block, a sliding block, a movable hole, a movable frame and a clamping block, the problem that the existing protective sleeve is inconvenient to use is solved, users can replace a fiber grating strain sensor more conveniently, users can use the protective sleeve conveniently, and the practicability of the protective sleeve for fiber grating strain sensors is greatly improved.

The invention discloses an anti-corrosion APU cabin partition sealing strip. The anti-corrosion APU cabin partition sealing strip comprises a sealing strip body. The outer surface of the upper end ofthe sealing strip body is fixedly provided with a first attaching blade. The outer surface of the bottom end of the sealing strip body is fixedly provided with a second attaching blade. One side of the outer surface of the sealing strip body is fixedly provided with a first sliding clamping groove. The other side of the outer surface of the sealing strip body is fixedly provided with a second sliding clamping rove. The inner surface of the interior of the sealing strip body is fixedly provided with a notch, and the interior of the sealing strip body is fixedly provided with an insulation plate. The anti-corrosion APU cabinet partition sealing strip is provided with the insulation plate, a fiber strip and a PVC flexible plate, relatively high fire resistance is achieved, the sealing strip can be prevented from burning, rapid springback can be achieved, effective damping is achieved, the situation that the sealing strip is corroded can be prevented, the service life of the sealing stripis prolonged, people can use the anti-corrosion APU cabin partition sealing strip conveniently, and better using prospects are achieved.

The invention discloses a classified storage cabinet based on a surveying and mapping engineering tool. The classified storage cabinet comprises a base plate and is characterized in that the top of the base plate is fixedly connected with a cabinet body; a mounting p late is fixedly connected between the two sides of the inner wall of the cabinet body; the bottom of the inner wall of the cabinet body is fixedly connected with a motor; the outer surface of an output shaft of the motor is provided with a first bevel gear in a sleeving manner; and a transmission shaft is rotationally connected between the bottom of the inner wall of the cabinet body and the bottom of the mounting plate and at one side of the motor by virtue of a bearing. The classified storage cabinet disclosed by the invention belongs to the technical field of storage equipment for surveying and mapping engineering tools. The classified storage cabinet based on the surveying and mapping engineering tool can realize classified storage of surveying and mapping engineering tools which are different in volume and shape, also realizes quite good dehumidification of the surveying and mapping engineering tools placed insidethe cabinet body, prevents the surveying and mapping engineering tools from being rusted in a long-time storage process and guarantees normal use of the surveying and mapping engineering tools for asurveying and mapping worker, thereby providing great conveniences for the surveying and mapping work of the surveying and mapping worker.

The invention relates to a wire connection device and an assembly method thereof and aims to solve the problem of easy damage and short service life of a wire connection device in the prior art. The wire connection device comprises a wire connection terminal and a wire connection box. The wire connection terminal is installed in the wire connection box, and a 30-degree to 150-degree space angle is formed by the outlet ends and the inlet ends of the wire connection terminal. The wire connection terminal comprises a certain number of conducting rods with at least one bend to satisfy the formation of the space angle. The wire connection box comprises the sheath of the outlet end and the spacing snap gauge of the outlet end, and the snap gauge is internally provided with isolation units which isolate the conducting rods and guiding installing holes which position the conducting rods. The wire connection device and the assembly method have the advantages that a fixed angle is formed by the inlet ends and the outlet ends of the modularization assembly wire connection box, and lines do not interfere with each other; the sealing of an overall structure is complete; the deformation of a motherboard in a use process is prevented; a mode of multiple inlet ends and multiple output ends are formed; and the solder joint processing is avoid, and the working time and labor intensity are saved.