1013results about How to "Extended replacement cycle" patented technology

The invention discloses an elevator control method based on face recognition. The elevator control method includes the steps that face image information is collected, and a matched database is established; the elevator control authority of each elevator user is set; and face information of each person entering an elevator is obtained and is matched with the face information in the matched database, and whether the ban on an elevator panel button control module is lifted or the ban is put on the elevator panel button control module is judged according to whether matching succeeds or not. According to the elevator control method, face recognition of elevator persons can be achieved, authority distribution is conducted on the elevator persons typed in the database, the visitor authority of each floor can be set, and the safety grade of a building is improved; and meanwhile, face recognition is adopted, and face recognition is more convenient and faster compared with traditional card reading and fingerprint recognition.

The invention discloses a device for eliminating haze and atmospheric pollutants. Appropriately preheated atmosphere with pollutants flows through a capillary tube array and is introduced into a liquid adsorbent, the pollutants in the atmosphere inside formed bubbles are adsorbed or dissolved by the surface of the liquid inside the bubble, and then atmosphere purification is achieved. The purification is applicable to atmospheric suspended grains of various diameters, and pm2.5 purification can be thoroughly achieved. To enhance the purification effect and the use convenience, the device is provided with function components such as a stirring rod with a bubble cutting steel wire and a spiral belt, and a waste liquid sucking chamber. The device can be separately used and can be also used with other devises in series. The device can be mounted on various carrying tools such as a vehicle, and due to the position change, the haze cleaning places can be changed at appropriate time, and the movement airflow of the carrying tool can be used as the power for eliminating the haze. The device can be used for purifying air at fixed points. When the device is used together with dust cleaning equipment, pm2.5 purification in polluted enterprises can be achieved. With special liquid adsorbent, the device can be used in special purification and professional equipment.

The invention provides a suspension type monorail track and a trolley bus and belongs to the field of communication and transportation. The suspension type monorail track comprises a track beam. A walking cavity is formed in the track beam. The bottom of the walking cavity is a walking face. The side face of the walking cavity is a guide face. A wear-resisting and tackifying layer is arranged on the walking face. A wear-resisting layer is arranged on the guide face. According to the suspension type monorail track and the trolley bus, the structure of additionally arranging the wear-resisting and tackifying layer on the walking face and additionally arranging the wear-resisting layer on the guide face is adopted, in this way, wear-resisting performance of the track beam can be effectively improved, and the period for replacing the track beam is prolonged greatly; moreover, adhesive force between a walking part of a vehicle and the walking face is increased, which is beneficial for enhancing the ability of a track system to adapt to terrain of a large ramp; meanwhile, by means of the wear-resisting and tackifying layer capable of being replaced or laid again, convenience of maintaining the track is improved, cost of maintaining the track is reduced, and the defects in the prior art are effectively overcome.

The invention relates to a preparation method of a metal corrosion inhibitor. Fatty acid and polyamine are used as initiative raw materials in the method, and the novel metal corrosion inhibitor is synthesized by amidation, quaternization and substitution reaction. The corrosion inhibition rate of the metal corrosion inhibitor prepared by the method is more than 99 percent, the corrosion inhibitor is easily biodegraded, the pH value of the corrosion inhibitor is 6 to 8 and close to neutrality, and the corrosion inhibitor is convenient to transport and use.

The invention discloses a vertical vacuum sputtering coating production line. The vertical vacuum sputtering coating production line comprises a transmission assembly line and a coating assembly line, wherein the coating assembly line is connected with the transmission assembly line. The transmission assembly line comprises a rail, at least one transmission trolley and at least one substrate carrying device. The transmission trolley runs on the rail and transmits the substrate carrying device. The coating assembly line comprises an inlet cavity, an inlet transition cavity, an inlet buffer cavity, a coating cavity, an outlet buffer cavity, an outlet transition cavity and an outlet cavity. Compared with the prior art, the transmission assembly line and the coating assembly line are connected end to end to form an annular assembly line, so that the occupied area is saved; intelligent control is adopted for substrate transmission in the whole coating production line, so that manpower and material resources are saved, and production efficiency is improved; all cavities in the coating assembly line are replaced or added according to requirements of products, so that the whole coating production line meets the requirements of various coating processes; andthe service life is prolonged, resources are saved, and therefore the vertical vacuum sputtering coating production line has quite wide application prospects.

The invention relates to an olefinic carbon compound nanometer soft metal wear-resistant self-repairing material with surface modification, and a preparation method thereof. A nanometer olefinic carbon material with wear-resistant performance and a nanometer metal material with an abrasion repairing function are subjected to in-situ composite preparation with a sol-gel method, so that the materialhas dual functions of abrasion resistance and reduction and abrasion self-repairing, and the advantage complementation mechanism of the synergetic effect and the performance of different types of nanometer materials is performed. The olefinic carbon compound nanometer soft metal wear-resistant self-repairing material prepared with the preparation method can be used for realizing the breakthroughof 'exponential increase of wearing resistance under extreme pressure', 'zero abrasion of metal friction' under an extreme pressure situation is broken through, true super lubrication under the extreme pressure situation is realized, traditional sulfur-phosphorus-containing liquid lubrication performance and application technologies are subjected to revolutionary changes due to the occurrence of olefinic carbon compound wear-resistant energy-saving materials, the material does not contain caustic organic sulfur and phosphorus compound, wear-resistant performance is improved, and wear reductionenergy saving performance is also improved.

The invention discloses a nano long-acting liquid coolant. The nano long-acting liquid coolant comprises the following components of a base liquid which is composed of diatomic alcohol and a diluent, metal nanoparticles with a particle size of 3-100nm or carbon nano tube particles with a tube diameter of 8-100nm and length of 100-600nm, a dispersing agent, a corrosion inhibition additive, a pH regulator and a fluorescence colorant. The nano long-acting liquid disclosed by the invention is high in heat conductivity coefficient, good in heat transfer performance, good in liquidity and low in cost.

A thermal cycle management system for a vehicle fuel cell includes a stack cooling circuit, a cabin heating circuit, and a controller; the stack cooling circuit includes a first water pump, a deionization and filter assembly, a stack, and a cabin heat exchanger. The first water pump is arranged on a main loop of the stack cooling loop and used for providing circulating power for the galvanic pilecooling loop; the deionization and filter assembly is connected in series behind the first water pump and is used for removing ions and impurities in the cooling liquid; the stack is connected in series behind the deionization and filter assembly and is used for generating electric energy; the cabin heat exchanger is connected in series behind the stack and used for exchanging a part of heat generated by the stack to the cabin heating loop. According to the thermal cycle management system of the vehicle fuel cell, an integrated scheme of integrating the ion exchanger and the cooling liquid filter is adopted, the system performance is guaranteed, and the number of parts is reduced.

The invention discloses a dust blowing device for a selective catalytic reduction (SCR) denitration reactor. The dust blowing device comprises an air compressor, a buffer tank, a solenoid valve and jet pipe network unit module which are communicated in sequence; the jet pipe network unit module is positioned on catalyst units positioned in the SCR denitration reactor and jet pipes in the jet pipe network unit module are in one-to-one correspondence with the catalyst units. In the dust blowing device, a dust blowing air source is provided for the jet pipe network unit module by utilizing the air compressor; compressed air is stored and released by utilizing the buffer tank; the opening and the closing of the buffer tank is controlled by utilizing the solenoid valve; the jet pipes which are in the jet pipe network unit module and are in one-to-one correspondence with the catalyst units blow away dust in a manner of being dead against catalysts. The dry compressed air serves as a dust blowing medium, so that the normal work of the catalyst in a dry state is guaranteed. The dust blowing device has no vibration, no high temperature, no dead angle or no gathered dust residue, and has a large coverage surface when the gathered dust is cleaned by the compressed air; the service life of the catalysts is prolonged; the replacement cycle of the catalysts is prolonged; the denitration efficiency is effectively improved; an energy resource is saved.

The invention discloses resourceful treatment system and treatment method of aluminum ashes, and aims at solving the technical problems that the aluminum ashes in the prior art are low in recovery rate, complicated in process, and easy to pollute environment. The system comprises an aluminum ash separation unit, a burdening unit, a molding unit and a baking unit. The method comprises the following steps: adding hot aluminum ashes to a hot aluminum ash separator; separating out metallic aluminum and low-aluminum ashes; evenly mixing and stirring the obtained low-aluminum ashes and a binder according to the mass ratio of 10:1 to 10:2; pressing the mixed materials into an anode steel claw protection ring blank and demolding; sintering and sizing the obtained anode steel claw protection ring blank and then obtaining an anode steel claw protection ring. By adopting the resourceful treatment system and treatment method, integrated treatment of the aluminum ashes can be achieved, the treating processes of the aluminum ashes are simplified, the resourceful treatment system and treatment method are simple and convenient to operate, energy-saving and environmentally friendly, waste emission can be greatly reduced, regeneration and cyclic utilization of resources are fully achieved, and the problem of innocent treatment of the aluminum ashes is solved.

The invention belongs to the polyester spinning field and relates to an 8-shaped hollow polyester fiber FDY (Fully Drawn Yarn) and a preparation method thereof. A spinning melt contains saturated fatty acid metal salt and modified polyester, wherein the mass ratio of saturated fatty acid metal salt to modified polyester is (0.0005-0.002) to 1; saturated fatty acid metal salt is fatty acid metal salt, the carbon atomic number is 12-22, the melting point is 100-180 DEG C, and the kinetic viscosity is less than or equal to 1Pa.s; a molecular chain of modified polyester comprises a terephthalic acid chain segment, a glycol chain segment and a rigid structure chain segment, and the molar ratio of the rigid structure chain segment to the terephthalic acid chain segment is (0.02-0.05) to 1; and the die swell ratio of the spinning melt is 1.23-1.33, and the after-filtration pressure during the spinning is 85-125kg/cm<2>. The prepared 8-shaped hollow polyester fiber FDY has relatively high degree of hollowness and relatively good shape-preserving effect.

The present invention relates to a spinning head for synthetic fibers, an oiling device, a spinning device and a manufacturing method thereof. The spinning head (1) comprises a single row of spinning holes (2). The filaments discharged from the spinning hole (2) of the spinneret (1) avoid twisting and are wound up to the take-up roll (12) by means of an oiling device (8) and guide devices (9, 10). In the spinning head (20), a groove (24) may be formed to extend in a radial direction and have its center located in the spinning hole (23). A molten polymer filtered by the filter medium (22) can enter the spinning hole (23) through the slot (24). The oiling device (31) may include an oiling device (8) and a guide element (9), and the cooperation of the two elements prevents incomplete oiling.

The invention relates to a pouring material for a cement kiln tertiary air duct. The pouring material comprises aggregate and a matrix material according to a weight ratio of 2-8: 1-3. The aggregate has particle sizes of 1-10mm and the matrix material has the particle sizes of 0.1-0.5mm. The aggregate comprises, by weight, 28-50 parts of fused magnesia, 25-45 parts of modified white alundum, 5-15 parts of zirconium mullite and 8-20 parts of magnesium aluminate spinel. The matrix material comprises magnesia powder, silicon oxide fine powder, mullite powder, alumina fine powder and andalusite. The pouring material utilizes appropriate aggregate and the matrix material and has wear resistance and corrosion resistance, a uniform degree of expansion and good thermal shock stability. Through use of a fiber additive, pouring material integrality is improved, and pouring material flexural performances and anti-erosion performances are improved. The cement kiln tertiary air duct has the advantages of long service life, long replacement period, small production cost and high production efficiency under bad conditions.

The invention discloses a grinding and driving mechanism of an inner grinder of a large-diameter cast iron pipe production line. The mechanism is provided with a grinding rod shaft bracket connected to a connecting seat of the inner grinder, and a grinding rod shaft is arranged on the front part of the grinding rod shaft bracket extending into a cast iron pipe through a bearing block, wherein the axis of the grinding rod shaft is longitudinally parallel to the grinding rod shaft bracket; and a driving motor is fixed on the grinding rod shaft bracket and connected with the grinding rod shaft through a belt transmission mechanism. The adoption of the technical scheme simplifies the structure of the inner grinder, decreases the length of the grinding rod shaft and reduces the number of supporting bearing blocks of the grinding rod shaft; in addition, the weight of the equipment mechanism is lightened, and under the condition that the power of a grinding electromotor keeps unchanged, the grinding time is reduced, and the replacement period of the grinding rod shaft is prolonged, thereby reducing the inventory of spare parts, greatly improving the production efficiency and reducing the production cost.