39results about How to "Achieve anti-clogging" patented technology

The invention discloses a rotary type filter object automatic clearing anti-blockage irrigation shower nozzle. The rotary type filter object automatic clearing anti-blockage irrigation shower nozzle comprises a round box, an opening is formed in the bottom side of the round box, the lower end of the inner wall of the round box is in bearing connection with the upper end of the periphery of a roundpipe, the upper end of the inner wall of the round pipe is in bearing connection with the periphery of an annular inner gear plate, a coaxial vertical shaft is arranged in the round pipe in a bearingmanner, the upper end of the vertical shaft penetrates through the annular inner gear plate, is located in the round box and is fixedly provided with a first gear, the middle of the top wall of the inner wall of the round box is fixedly provided with an annular inner gear, and the annular inner gear and the first gear are in gear transmission through a first transmission gear. The structure is simple, water flow flowing is used for driving the shower nozzle to rotate, shower nozzle rotation irrigation is achieved, solid particles filtered by a filter net can be alternatively cleared, stackingof the solid particles can be avoided, the anti-blockage aim of the irrigation shower nozzle is achieved, market needs can be met, and the shower nozzle is suitable for popularization.

The present invention provides a liquid level measurement device. The liquid level measurement device comprises a liquidometer body, and the liquidometer body includes an integrated welding forming body measuring tube, a connecting flange and a high temperature plug valve; the connecting flange fixedly connected with one end of the body measuring tube; the high temperature plug valve is connected with the body measuring tube to be one body through the connecting flange; a clamp cover tracing pipe is arranged between the high temperature plug valve and the connecting flange; the liquid level measurement device also comprises a poking needle, and the poking needle inserts the high temperature plug valve and penetrates the liquidometer body. The present invention further provides a gas intrusive liquid level measurement system. The gas intrusive liquid level measurement system is used for an reaction device. The gas intrusive liquid level measurement system comprises a liquid level measurement device as mentioned above, a liquid level control unit and a blowback system. According to the invention, the working conditions with high viscosity, high vacuum, high temperature and easy crystal may be steadily controlled in real time, and the problems of installation positions, difficult measurement and the like, are solved.

The invention provides intelligent self-cleaning dry fog de-dusting equipment. A water supply pipe and an gas supply pipe are connected respectively with a water gas mixer; a water inlet pressure sensor, a water supply adjusting valve and a water control electromagnetic valve are connected to the water supply pipe; a gas inlet pressure sensor, a gas supply adjusting valve, a gas storage tank filter and a gas outlet pressure sensor are connected sequentially to the gas supply pipe; the gas supply pipe is connected with the water gas mixer by the gas pressure adjusting valve; an fog spraying box, an outlet pressure sensor and a sprayer are arranged on the pipe of the rear part of the water gas mixer; a spraying vibrator is arranged on the sprayer. A connecting pipe is arranged between the gas supply adjusting valve pipe on the gas supply pipe and the water supply adjusting valve pipe, and a back blow valve is arranged on the connecting pipe. The equipment is controlled by a PLC. By utilizing the equipment, the water gas mixed vibrating fog spraying can be realized, the self-cleaning and blockage prevention of pipelines and sprayer can also be realized. The equipment has the advantages of good de-dusting effect and high reliability. And the equipment is suitable for being used as the dry fog de-dusting equipment.

The invention discloses ultra-flexible coated abrasive cloth, and relates to the technical field of coated abrasive tool products. The ultra-flexible coated abrasive cloth comprises a substrate, an abrasive and a composite adhesive layer; the substrate and the abrasive are coated with the composite adhesive layer, and the abrasive is fixed to the substrate through the composite adhesive layer; thesubstrate comprises a base material and a flexible adhesive layer, and the composite adhesive layer comprises a bottom adhesive layer, a composite adhesive layer body and a coating layer which are distributed from bottom to top in sequence; the flexible adhesive layer comprises one layer of or combination of multiple layers of an upper adhesive layer, a lower adhesive layer and an inner adhesivelayer, the upper adhesive layer and the lower adhesive layer are arranged on the upper surface and the lower surface of the base material correspondingly, and the inner adhesive layer is distributed in the base material; and the base material adopts a cloth base of which the absolute dry weight is 25-180 g / m<2>. The good surface evenness of the coated abrasive cloth can be obtained, the flexible bending radius is 1-3 mm, the ultra-flexible coated abrasive cloth is suitable for grinding of light-load planes and curved surfaces, is resistant to breaking and blocking during grinding, and has thecharacteristics of being good in economical efficiency, light and thin.

The invention relates to the field of water-cooled air-conditioning clothing, in particular to a water-cooled air-conditioning clothing for fire rescue and rescue, which includes a main body of the air-conditioning clothing and a water cooling circulation device. At the middle end of the main body of the air-conditioning suit, a fixed pipe clamp is fixed inside the main body of the air-conditioning suit. The inner side of the fixed tube clamp is fitted with the water-cooled tube, and the inner side of the fixed tube clamp is fixed with a vibration block, so that the water-cooled tube can be firmly fixed. At the same time of setting the position, the vibration block can be used to make the vibration generated during daily exercise of people be contacted by the vibration block, and then use the roller to rotate and contact the contact block on the water-cooled tube to generate vibration to stick the impurities on the inner wall of the water-cooled tube Remove it to achieve the effect of preventing clogging of the water-cooling tube and improving the service life, and the contact block is set in a trapezoidal shape inclined on both sides, so that the contact vibration efficiency of the roller and its corners is higher and it will not get stuck.

The invention belongs to the technical field of flour processing, in particular to flour processing feeding equipment and flour processing equipment, comprising: a feeding outer hopper and a feeding inner hopper, the feeding inner hopper is movably arranged inside the feeding outer hopper, and the feeding inner hopper The straight outer wall of the hopper is matched with the straight inner wall of the feeding hopper by a screw drive; the spring is arranged between the feeding outer hopper and the feeding inner hopper, and the spring is used to support the feeding inner hopper so that the feeding inner hopper and the feeding outer hopper are connected. There are gaps between the buckets; and blades, and at least one blade is arranged on the inner wall of the straight cylinder of the feeding inner bucket. The invention has a reasonable structure, can skillfully apply the feeding principle of the feeding hopper, does not need manual operation, reduces labor costs, and has a simple and practical structure, which can be produced without complicated processing, and is suitable for popularization and application.

The invention provides a laser welding method for a metal pressure measuring capillary of an aircraft, wherein the metal pressure measuring capillary is inserted into a through hole on the outer wall of the metal shell of the aircraft; the welding method of the pressure measuring capillary comprises the following steps: Carry out tack welding at the joint of the pressure measuring capillary and the outer wall of the metal shell of the aircraft; perform pulse laser welding at the joint of the pressure measuring capillary and the outer wall of the metal shell of the aircraft, the wall thickness of the pressure measuring capillary is 0.2mm~0.6mm; the parameters of pulsed laser welding include: laser peak power P=250W~700W, pulse frequency f=60~120Hz, duty cycle PWM=10%~30%, welding speed v=0.5~1m / min, spot diameter d is 0.05-0.5mm, defocusing amount ΔF=-0.3mm~+0.3mm. The invention realizes the reliable connection between the pressure-measuring capillary and the outer wall of the metal shell of the aircraft, and ensures the weld penetration, high-temperature strength of the weld, air tightness, pressure-measuring functionality and the accuracy requirements of the aircraft.