32results about How to "Keep the air clean" patented technology

The sealed and pressurized operator's cabin for engineering machinery includes one sealed box comprising one first part with at least one first opening and one second part with at least one second opening; at least one control rod connected to the sealed box and penetrating through the first opening; at least one linkage unit connected to the control rod and penetrating through the second opening; and one sealing member to seal the sealed box through fitting with the linkage unit. The sealed and pressurized operator's cabin can avoid contamination to the inside of the cabin and maintain its air pressure.

The invention discloses a rubbish dehydration solid-liquid separation device. The rubbish dehydration solid-liquid separation device comprises a closed solid-liquid separation cylinder body, a downward-moving hydraulic system with a lower push plate, a discharging hydraulic system with a discharging push plate and an upward-moving hydraulic system with an upper push plate. A feeding opening and a discharging opening are formed in the upper portion of the solid-liquid separation cylinder body. The lower push plate of the downward-moving hydraulic system is arranged on the top of the solid-liquid separation cylinder body and can move up and down along an inner cavity of the solid-liquid separation cylinder body. The upper push plate of the upward-moving hydraulic system is arranged at the bottom of the solid-liquid separation cylinder body and can move up and down along the inner cavity of the solid-liquid separation cylinder body. The discharging push plate of the discharging hydraulic system is arranged at the position, corresponding to the discharging opening, of the solid-liquid separation cylinder body, and can make transverse movement along the inner cavity of the solid-liquid separation cylinder body. According to the rubbish dehydration solid-liquid separation device, a double-direction vertical hydraulic squeezing mode is adopted, powerful squeezing can be provided, the problems of winding and hard object sticking in material dehydration can be solved, the adaptability to materials is high, the effects of rubbish reduction and volume reduction are obvious, the automation degree is high, and sealed deodorization can be achieved.

An air purifier comprise a gas filter between an upstream air flow and a downstream air flow and a concentration sensor comprising a first electrode and a second electrode, the first electrode being exposed to the upstream air flow and the second electrode exposed to the downstream air flow, the concentration sensor providing an output signal based on the difference in concentrations of a target gas at the first and second electrodes. The output signal is processed to determine information relating to the condition of the gas filter.

The invention discloses a winding type composite core pultrusion impregnation process for smart energy and a special impregnation apparatus therefor. The impregnation apparatus comprises a first yarn-splitting frame, a first impregnation groove, a first adhesive extruding roller, a second yarn-splitting frame, an adhesive scraper, a first yarn collector, a winder, a pre-curing die, a curing die, a second impregnation groove, a second adhesive extruding roller and a second yarn collector that are arranged on a tooling bracket, wherein an upper yarn-splitting device and a lower yarn-splitting device are arranged at the upper and lower ends of the first yarn-splitting frame respectively; the first adhesive extruding roller and the second adhesive extruding roller are arranged at the upper parts of the first impregnation groove and the second impregnation groove respectively; the second yarn-splitting frame and the adhesive scraper are arranged at the front part of the first yarn collector; the first yarn collector is arranged at the front part of the winder; and the winder is arranged at the front part of the pre-curing die. According to the winding type composite core pultrusion impregnation process and the impregnation apparatus, continuous winding can be realized through the winder so as to produce the winding type composite core; the composite core is under transverse protection, so that the cracking of the composite core is avoided, and the composite core is safer to use; and in addition, the composite core is subjected to impregnation first and then is winded, so that the internal defects of a core rod caused by incomplete impregnation is prevented, so that the winding type composite core pultrusion impregnation process and the impregnation apparatus can be widely popularized.

The invention provides a clean operation shelter comprising an operation shelter and a preparation shelter which are separated by a cross wall; an automatic sensing door is arranged on the cross wall; the operation shelter and the preparation shelter are respectively provided with a shelter door; air cleaning systems are respectively arranged in the operation shelter and the preparation shelter; one side surface of the operation shelter is provided with a foldable expansion shelter; the expansion shelter comprises a bottom plate, a side plate, a front end plate, a rear end plate and a top plate; the bottom plate is hinged at the bottom of the side surface of the operation shelter; the top plate is hinged on the top of the side surface of the operation shelter; the side plate is hinged with the bottom plate; the front end plate and the rear end plate are respectively hinged on two vertical sides of the side surface of the operation shelter; two oil cylinders are arranged in the operation shelter; piston rods of the two oil cylinders are respectively connected to the front edge and the rear edge of the bottom plate; a retractable lower constant force support device is connected between the side plate and the bottom plate; and a retractable lower constant force support device is connected between the top plate and the side surface of the operation shelter. The clean operation shelter not only can keep the air in the operation shelter clean but also can expand the space of the operation shelter.