45results about How to "Reduce the probability of rust" patented technology

The invention discloses a protective agent for a bridge with a steel structure, a preparation method thereof and application thereof. The protective agent comprises the following components: an organic / inorganic composite fluorosilicone styrene polymer, lithium silicate, sodium molybdate, benzotriazole, nanometer titanium dioxide, sodium gluconate, ethanolamine, absolute ethanol and distilled water. Corrosion inhibiting ingredients contained in the protective agent can be attached to the metal surface of the bridge with the steel structure, so that a compact protective film is formed on the metal surface due to a passivating reaction for corrosion inhibition and corrosion prevention; a low-surface energy fluorosilicone styrene polymer component contained in the protective agent can be cured to form a film for playing the hydrophobic and protective roles; a nanometer component can improve the performance of ultraviolet aging resistance of a film layer, improve the performance of the polymer and provide the excellent self-cleaning performance and the like for the cured film; and hydroxyl generated by hydrolyzing siloxane groups can perform a condensation reaction with hydroxyl on the surface of the bridge with the steel structure to generate a chemical bond so as to improve adhesive power between the film layer and a matrix material and improve interface bonding. The protective agent is high in stability, non-toxic, environment-friendly, multiple in functions and easy to construct, can be widely used for the protection of the structural engineering of various bridges with the steel structures, and is favorable for improving the service life of the bridge with the steel structure.

The invention discloses a novel fire fighting table for building construction. The novel fire fighting table comprises a fire fighting table body and fire extinguishers. Right protection plates are fixedly mounted at one ends of second telescopic rods. Each fire extinguisher is mounted on one side of the corresponding right protection plate in a clamped manner, and the other side of each fire extinguisher is connected with a clamping device in a clamped manner. A drying device is arranged in a containing box, and a pipeline is fixedly mounted at the position, close to the upper portion of a first baffle, of the bottom end of the containing box. An adjusting device is mounted in a telescopic plate in an embedded manner. According to the novel fire fighting table, the storage space of a storage box can be adjusted by workers conveniently through the adjusting device, the storage box can store more fire fighting sand, and the workers can conveniently carry out emergency fighting on fires;through the drying device, the workers can conveniently dry fire fighting instruments, water stains with which the fire fighting instruments are contaminated are reduced, and the probability that thefire fighting instruments rust is reduced; and through the clamping devices, stability and safety generated when the fire extinguisher is placed can be increased.

The invention relates to a concrete mixing machine and a cleaning system used for cleaning the concrete mixing machine, and relates to the technical field of construction equipment. The concrete mixing machine comprises a machine frame, a power assembly and a linkage rod are arranged on the machine frame, a first gear is installed on the linkage rod, a mixing drum is rotatably arranged on the machine frame, and a gear ring is arranged outside the mixing drum; the mixing drum comprises a first half drum, a second half drum which is rotatably connected with the first half drum and a connecting assembly which connects the first half drum with the second half drum; and the gear ring is divided into two parts which are arranged on the first half drum and the second half drum correspondingly, and a mixing blade is divided into two parts which are arranged in the first half drum and the second half drum correspondingly. According to the concrete mixing machine and the cleaning system used forcleaning the concrete mixing machine, the first half drum and the second half drum are separated, working personnel can know the position of concrete, the first half drum, the second half drum and the mixing blade are precisely washed, the residue concrete can be cleaned and removed, the possibility that the concrete remains in the mixing drums is reduced, influence on subsequent mixing is reduced, and the service life is prolonged.

The invention relates to an oiling machine and a heat treatment process adopting the oiling machine, and relates to the technical field of bearing machining. The oiling machine comprises two oiling machine bodies, feeding belts are arranged on the oiling machine bodies, and a first conveying belt and a second conveying belt are arranged on the ground in a spaced mode. A turnover device is arranged on the ground between the first conveying belt and the second conveying belt, and is used for turning over a bearing in a collecting box. According to the oiling machine, the collecting box is fed into the first oiling machine body and is sprayed with anti-rust oil, then the collecting box is moved to the turnover device, and the turnover device is started to turn over the bearing in the collecting box by 180 degrees; and then the collecting box is conveyed to the second oiling machine body and is sprayed with the anti-rust oil for the second time, so that the probability that the anti-rust oil is not sprayed to the bearing due to shielding is reduced, the probability of rusting of the bearing is reduced, and the quality of the bearing is improved.

The invention discloses a lower frame structure of a solar support, which includes a support frame, the support frame includes a bottom plate and side plates installed on both sides of the bottom plate, grooves are arranged on the outer wall of the adjacent side of the bottom plate and the two side plates , the grooves on the bottom plate communicate with the grooves on the two side plates respectively, the bottom plate is provided with a drain pipe, and the bottom plate is provided with a through hole above the drain pipe, and the through hole communicates with the groove on the bottom plate, so A buffer plate is provided on the bottom inner wall of the groove on the bottom plate, and the buffer plate includes two parallel sealing plates, the sealing plates are of C-shaped structure, and the two sealing plates are connected by spring posts, and the spring posts and the two sealing plates There are gaps in between. The invention can timely remove the water in the support frame, reduce the probability of corrosion of the support frame, reduce the impact force of the fixed plate on the support frame, prolong the service life of the support frame, and the distance between the fixed splint and the movable splint can be adjusted , suitable for clamping solar panels of various thicknesses.

The invention discloses a temperature control system, which comprises a temperature control component and a water replenishing component, wherein the temperature control component comprises a first pipeline, the inner part of the first pipeline is used for bearing condensate water, and two ends of the first pipeline are independently connected with two ends of equipment subjected to temperature control; the water replenishing component comprises a second pipeline and a first valve positioned on the second pipeline, wherein the inner part of the second pipeline is communicated with the first pipeline for providing the condensate water for the temperature control component, and the pH (Potential of Hydrogen) value of the condensate water is between 9 and 10.5. Through the above way, the system can reduce the corrosion of water to a steel roller.

The invention discloses an automatic metal separator. The automatic metal separator comprises a metal detecting ring and a metal separator body; a feed port is formed above the metal separator body; adischarge port is formed under the metal separator body; a separation cavity and a feeding cavity are formed in the metal separator body in sequence from top to bottom; a mechanical arm is fixed on the top wall of the separation cavity through bolts and threads; a conveying belt is sleeved in the feeding cavity through a rotating shaft; and a ventilation box is horizontally inserted in middle ofthe conveying belt. Under the condition of not stopping the conveying belt, the position of metal is detected through the metal detecting ring, and such harmful metal impurities as manganese steel lining plates, hammerheads and alloy steel mixed in materials are sorted through the mechanical arm, so that the recycling of the metal is improved, and a roller press and a vertical mill can be protected to reduce the maintenance times so as to save a lot of maintenance costs for companies.

This application relates to a balcony railing embedded part and its pre-embedded construction process. The balcony railing embedded part includes a base block, a connecting rod set on the base block, a movable block sleeved on the connecting rod, and a movable block installed on the upper end of the connecting rod. The upper surface of the base block is provided with an upper internal thread and a lower internal thread, the lower end of the connecting rod is threadedly connected with the lower internal thread, and a sealing assembly is installed on the movable block and the connecting rod; the sealing assembly includes a fixed sleeve on the connecting rod The sealing ring on the top, the annular rubber sheet fixed to the upper surface of the base block and the threaded column fixed to the bottom surface of the base block, the sealing ring is made of water-swellable material. In this application, after the worker tightens the threaded column through the movable block, the movable block cooperates with the base block and fully presses against the annular rubber sheet, so that the gap between the movable block and the base block is fully filled by the annular rubber sheet, reducing the water leakage caused by water. The gap between the movable block and the base block infiltrates, and makes the thread at the lower end of the connecting rod corrode, prolonging the service life of the connecting rod.

The invention discloses a gypsum board line fire protection automatic inspection control system and method. The start time point and pause time point of the negative pressure simulation generator are set, and the fire control controller collects the output of the pressure sensor in real time during the working period of the negative pressure simulation generator. signal; the fire controller regulates the test operation of the water pump by the inspection module according to the output signal of the pressure sensor during the working period of the negative pressure simulation generator, and the fire controller gives an abnormal alarm according to the test operation of the water pump; The output signal outside the working period of the simulation generator regulates and controls the inspection module to operate the water outlet and fire extinguishing operation of the water pump; the fire control controller manually stops the water pump to drive the water outlet mode, and then the regulation inspection module returns to the normal state; the present invention combines the regular inspection work with the water pump drive The water outlet work is integrated, and the regular inspection work does not affect the water pump driving water outlet work.

The invention relates to a finned tube heat exchanger. The finned tube heat exchanger is arranged in refueling water tank of a passive waste heat removal system of a nuclear power station and comprises a C-shaped vertical pipe bundle, a support and anti-vibration strips for fixing a heat exchange pipe bundle, wherein the C-shaped vertical pipe bundle is composed of a plurality of C-shaped heat exchange pipes, and a plurality of anti-vibration strip arrangement regions are arranged in the C-shaped vertical pipe bundle. Cylindrical anti-vibration strips are arranged in the anti-vibration strip arrangement regions. The manufacturing cost and difficulty of the heat exchanger in the passive waste heat removal system of the pressurized water reactor nuclear power station can be reduced, the stress concentration situation of the heat exchanger heat transfer pipes during operation is effectively reduced, the heat transfer pipe bundle constraint and heat transfer pipe corrosion probabilities are reduced, and accordingly the risk that the heat transfer pipe bundle deforms and is invalid is reduced.

The invention provides a design and construction structure of a beam-slab structure underground garage comprehensive pipe gallery, which includes an N-1 basement. From the first basement to the N-1th basement, each layer goes to the The interior of the basement on the first floor is provided with a partition wall one and a partition wall two in sequence, and each basement is also provided with an exhaust duct and an air inlet duct used as ventilation and air conditioning equipment; The channel formed between the walls; the air inlet channel of each layer is the channel formed between the first partition wall of this layer and the second partition wall of this layer; the first partition wall of each layer is arranged oppositely, and the second partition wall of each layer is arranged oppositely. This structure can uniformly arrange the ventilation and air conditioning equipment pipelines, water supply and drainage pipelines and electrical pipelines in the comprehensive pipe gallery in the basement, which not only reduces the possibility of water leakage and air leakage to improve safety performance, but also greatly reduces the height of the basement and reduces the construction of the basement. The excavation depth of the foundation pit can increase the parking area and reduce the construction cost of the foundation pit.

The invention discloses a protective agent for a bridge with a steel structure, a preparation method thereof and application thereof. The protective agent comprises the following components: an organic / inorganic composite fluorosilicone styrene polymer, lithium silicate, sodium molybdate, benzotriazole, nanometer titanium dioxide, sodium gluconate, ethanolamine, absolute ethanol and distilled water. Corrosion inhibiting ingredients contained in the protective agent can be attached to the metal surface of the bridge with the steel structure, so that a compact protective film is formed on the metal surface due to a passivating reaction for corrosion inhibition and corrosion prevention; a low-surface energy fluorosilicone styrene polymer component contained in the protective agent can be cured to form a film for playing the hydrophobic and protective roles; a nanometer component can improve the performance of ultraviolet aging resistance of a film layer, improve the performance of the polymer and provide the excellent self-cleaning performance and the like for the cured film; and hydroxyl generated by hydrolyzing siloxane groups can perform a condensation reaction with hydroxyl on the surface of the bridge with the steel structure to generate a chemical bond so as to improve adhesive power between the film layer and a matrix material and improve interface bonding. The protective agent is high in stability, non-toxic, environment-friendly, multiple in functions and easy to construct, can be widely used for the protection of the structural engineering of various bridges with the steel structures, and is favorable for improving the service life of the bridge with the steel structure.

The invention discloses a spring braking device with a breathing structure. The spring braking device comprises a braking air chamber, a breathing opening communicated with the outside is formed in the braking air chamber, and a breathing structure used for keeping air pressure in the braking air chamber and outside air pressure to be balanced is arranged at the position, where the breathing opening is located, of the exterior of the braking air chamber; the breathing structure comprises an air exhaust device for exhausting air in the braking air chamber to outside; an air inlet device for feeding outside air to the braking air chamber is arranged on the air exhaust device; the service life of the braking air chamber and a travelling cavity is prolonged; and meanwhile the rusting probability of the braking device is decreased.

The invention discloses a hydraulic plate valve which comprises a valve body; a protective sleeve is in threaded connection to the top of the valve body in a penetrating manner; the top end of the protective sleeve extends to the outer part of the valve body; a rotary table is connected to the top end of the protective sleeve; a valve rod is rotationally connected to the bottom end of the rotary table, penetrates through the protective sleeve and extends into the valve body; a valve plate is connected to the valve rod; two symmetric sliding blocks are connected to the bottom end of the circumferential side wall of the protective sleeve; two symmetric chutes are arranged on the inner wall of the valve body and are connected with the sliding blocks in a sliding manner respectively; symmetricconnection rings are connected to the two sides of the valve body in the penetrating manner respectively; and one end, far away from the valve body, of each connection ring is provided with an opening. The hydraulic plate valve has a novel structure; the device can perform protection on the valve rod on the valve body, avoids from being directly contacted with water in air and rainwater, lowers the corrosion probability, prolongs the service life of the valve body; and in addition, the valve body is conveniently connected with a water pipe and can avoid the water pipe falling phenomenon fromoccurring at the same time, and the hydraulic plate valve is suitable for popularization.

The invention belongs to the technical field of power saving modification of power plant air compressors, and specifically relates to a power saving modification method for a power plant oil-injected screw type air compressor station. To solve the problem that an existing power plant oil-injected screw type air compressor adopts gas products to conduct adsorbent regeneration, a combined type drying method adopting a post-refrigerant dryer and a no-heating or gentle-heating structure is modified to a gas product recycling and zero-release drying technology. The power saving modification method comprises the following steps that air consumption and a dew point of the before-modification air compressor station are measured firstly, and consumed energy charge of the before-modification air compressor station is calculated; then after a modification scheme is established, consumed energy charge of the air compressor station is calculated; and finally, after an energy saving analysis is conducted, air-consumption and an air supply dew point of a after-modification air compressor station are measured. According to the power saving modification method for the power plant oil-injected screw type air compressor station, gas product consumption of the air compressor can be reduced, electricity consumption in operation of the air compressor can be reduced, high-quality gas is provided for instrumentation valves, an ash handling system and miscellaneous gas systems, power plant shutdown production accidents caused by unstable running of the air compressor are reduced, the safety of the power plant and economic operation are ensured.

The invention discloses a steering gear of a cable member. The steering gear comprises an ear plate, a bent cylinder integrated with the ear plate, a connecting rod ear plate buckled at one end of the ear plate, a hot-cast infill and a branch pipe group that are fixed in the bent cylinder, stranded wires penetrating the branch pipe group, a damping cushion block fixed at the outlet of the bent cylinder, waterproof covers fastened at the two ends of the bent cylinder, stayed cable Haver pipe sleeve heads buckled on the waterproof covers, stayed cable Haver pipes connected with the stayed cable Haver pipe sleeve heads, cable bands arranged on the inner sides of the waterproof covers and used for fixing the stranded wires, fastening bolts penetrating the waterproof covers and being in threaded connection with the bent cylinder, and water stop rings fixed between the outer side of the circumference at the outlet of the bent cylinder and the waterproof covers. The steering gear has the characteristics of being simple in structure, convenient to replace, excellent in force bearing performance, high in structural reliability, strength and elastic modulus and good in ductility and durability.

The invention relates to the technical field of concrete, in particular to a kind of anti-corrosion and anti-rust concrete, comprising the following components in parts by weight: 300-420 parts of cement, 680-730 parts of sand, 980-1200 parts of stones, and 35-50 parts of fly ash , 35-50 parts of mineral powder, 8-15 parts of pumping agent, 8-15 parts of concrete preservative, 8-15 parts of rust inhibitor and 150-200 parts of water; Anti-rust performance; the invention also provides the application of the anti-corrosion and anti-rust concrete in cast-in-place piles.

The invention discloses a trash can for weighing and measuring material quantity, and relates to the field of trash cans. The trash can includes a bucket body, a bucket base and a weighing sensor, and the bucket base is used for placing or fixing the trash can on the ground; The sensor is connected between the barrel body and the barrel base, the mounting part of the weighing sensor is mounted on the barrel base, and the barrel body is mounted on the weighing bearing part of the weighing sensor; the trash can also includes an analog-to-digital converter, a main controller and Display module; the output end of the load cell is connected to the first input end of the main controller through an analog-to-digital converter, and the second output end of the main controller is connected to the display module; the load cell is used to collect the amount of material in the trash can The display module is used to display the material amount when the material amount in the trash can is higher than the threshold value. The present invention realizes the measurement of the amount of trash in the trash can, so that the processing personnel can know the amount of trash in the trash can without checking the inside of the trash can, thereby improving the overall efficiency of garbage collection.

The invention discloses a lock protection device. The protection device comprises a fixing plate and a protection cover, wherein the protection cover is in rotary connection with the fixing plate through a rotary shaft, the top of the protection cover is a circular-arc face, and sector-shaped faces are arranged on two sides of the protection cover.