47results about How to "With maintenance" patented technology

The invention provides a novel flat typed solar energy collect method and a heat collector. The flat typed solar energy collect method is as follows: a fin with a plurality of arrangement hole channels in same direction or channel flows is arranged inside a plat typed frame. Liquid working medium is filled in the plat frame after the flat frame is processed vacuum treatment. The working medium naturally forms heat pipe effect in the hole channels or channel flows formed by the fin. The end part of the flat frame in which the condensation end of the heat pipe is located is arranged inside a water storage tank. The condensation end is condensed and exchanged heat in the water storage tank, and the hot water is made. The heat collector has the characteristics of simple structure, reliable working condition, low cost, free maintenance, high heat collection efficiency, being freeze proof and energy-saving.

The invention relates to a ratchet wheel parking braking device of a roller tractor. A limiting plate is provided with a guide groove, and an operating lever of a rocker arm assembly penetrates through the guide groove in the limiting plate to be hinged to a rocker arm shaft. An upper pin fixed on a rocker arm is arranged in a sliding chute of a hinged plate, the lower side of the hinged plate is hinged to a disk body of a camshaft through a lower pin, and the two ends of a first torsional spring are connected to the upper pin and the lower pin respectively. A cam, a parking braking stop block and a parking braking removing stop block are arranged on the end face of the disk body of the camshaft. A ratchet matched with a gear is arranged on the front upper portion of a ratchet wheel base on a ratchet wheel assembly, and the lower portion of the ratchet wheel base is arranged on a fixed shaft in a sleeved mode. The outer circumference of an idler wheel mounted on the side face of the ratchet wheel base is connected to the cam on the end face of the disk body in a pressing mode, the ratchet wheel base is provided with a limiting block corresponding to the parking braking stop block and a supporting seat corresponding to the parking braking removing stop block respectively. The two ends of a second torsional spring arranged on the fixed shaft in a sleeved mode are connected with the ratchet and a fixed seat respectively. The ratchet wheel parking braking device of the roller tractor is reasonable in structure, reliable in parking braking and free of maintenance.

The invention relates to a low-pressure hydrogen flame ionization detector which comprises a lower shell, a gas inlet pipe, an upper shell and a sealing barrel, wherein the lower shell comprises a disk base with a large diameter and a cylindrical base with a small diameter; a slot body is formed in each of the top of the cylindrical base and the bottom of the disk base; a through hole is formed between the two slot bodies; an air channel communicated with the through hole is formed in the bottom surface of the disk base; the upper end of the air inlet pipe is coaxially connected with a nozzle through a clamping sleeve and is connected into the slot body in the bottom of the disk base in a fastening manner; the nozzle passes through the through hole and is positioned in the slot body in the top of the cylindrical base; a gap is reserved between the nozzle and the inner wall of the through hole and is communicated with the air channel; an opening for feeding hydrogen is formed in one side of the gas inlet pipe; the upper shell is of a barrel-shaped structure; the lower end of the upper shell is connected to the top of the cylindrical base; an insulating sleeve is arranged in the upper shell; a collector is in tight fit in the insulation sleeve; the top of the upper shell is coaxially connected with a gas outlet pipe in a fastening manner; the opening end of the sealing barrel is connected with the disk base in a fastening sealing manner; the sealing barrel encircles the cylindrical base and the upper shell.

The invention discloses a wind power tower tube of a resin cladding frame and fiber reinforced concrete and a construction method. The wind power tower tube comprises an outer cladding and an inner cladding. The outer cladding and the inner cladding are each made of a resin composite, a cavity is formed between the outer cladding and the inner cladding, a cylindrical steel bar frame is installed in the cavity, fiber cloth is wound on the steel bar frame, fiber concrete is poured in a cavity body, and the outer contours of the outer cladding and the inner cladding are in hollow circular truncated cone shapes or cylinder shapes. The structure is simple, an existing tower tube mainly made of rolled steel can be replaced, the wind power tower tube has the advantages of being corrosion resistant, free of maintenance, high in strength, convenient to transport and construct, low in whole construction cost, capable of being installed and constructed on a site and the like, and the problems that an existing steel-structure tower tube is high in construction cost and inconvenient to transport, and needs to be subjected to corrosion prevention and maintenance at regular intervals are solved.

The invention discloses a control system. The control system compiles corresponding subroutine modules according to the control characteristics of each device, and then calls the corresponding subroutines according to the control requirements of the KEMCS control system, so as to control each device, and then assists to meet The auxiliary program blocks compiled according to the requirements of redundant settings can achieve perfect control. The control system is mainly composed of PLC communication protocol software, HMI monitoring software, HMI monitoring configuration software, network communication software, simulation test software, and database storage designed into modules. The software is composed of intermediary software bus connection through the CORBA public object request agent architecture and follows the TCP / IP protocol to realize communication, so that module failures are separated; the invention controls the environmental control of rail transit stations and intervals and the safety of other electromechanical equipment , Efficient and coordinated operation, to ensure a good and comfortable environment in subway stations and intervals.

The invention discloses an application method of an automatic grinding machine used for grinding a small roller and provided with a patching sharpening grinding wheel. The automatic grinding machine comprises a lathe bed, a marble table board, a bottom plate, a graphite wheel sliding plate drive device, a graphite wheel drive device, a grinding wheel device, a sharpening copper ring device, a vertical sharpening sliding plate device, a vertical sharpening drive device, an electric spindle device, a guide wheel transverse feed device, a guide wheel drive device, a supporting wheel device, the small roller, a graphite wheel sharpening device and angle plates. According to the automatic grinding machine, the small roller is subjected to grinding machining, meanwhile, the grinding wheel can becorrected online, the sharpening grinding wheel can be electrolyzed online, and therefore the grinding forming precision of the small roller is improved, the grinding efficiency is greatly improved,and cost is low; and due to the fact that the grinding size consistency of the small roller is good, the quality is stable and reliable, and the advantages that adjustment, mounting, maintaining and use are convenient are achieved.