81 results about "Compressed air filters" patented technology

A compressed air filter adapter is provided for connecting a filter element (12) to a filter connection housing (13). The adapter (11) has a flow duct (21) enclosed by a wall (20) for compressed air, the flow duct (21) at a first end being delimited by a first opening (14), having an inner contour (142) defined by a first edge (141) and an outer contour (143), and at a second end by a second opening (15), having an inner contour (152) defined by a second edge (151) and an outer contour (153). The first opening (14) is provided for connection to a filter connection housing (13) and forms an opening cross-section (16), defined by the inner contour (142) of the first opening (14). The second opening (15) defines an opening on the filter side and forms a second opening cross-section (17), defined by the inner contour (152) of the second opening (15). The inner contour (142) of the first opening (14) and the inner contour of the second opening (15) are offset from each other, such that the surface center of gravity of the first opening cross-section (16) is displaced in relation to the normal extending from the surface center of gravity of the second opening cross-section (17) in an offset direction (R). The outer contour (143) of the first opening (14) has a basic shape that deviates from the circular shape, such that the outer contour (143) is derived from a transformation of a circle (165) centrically aligned in relation to the normal extending from the surface center of gravity of the second opening (15), the circle in the direction of the offset direction (R) being displaced by a length R1 and defining a displaced circle (166), and on the side of the circle (166) pointing in the offset direction (R) having constrictions (18) or expansions (19) by removing or adding surface sections, and on the side pointing opposite from the offset direction (R) having corresponding expansions (19) or constrictions (18) by adding or removing substantially equally large surface sections.

The invention aims to provide a cartridge compressed-air filter and adopts the technical scheme that the cartridge compressed-air filter comprises a cartridge body, an upper cover, a lower cover, a filter screen, an air inlet pipe and an air outlet pipe, wherein the upper cover is arranged at an upper opening of the cartridge body; the lower cover is arranged at a lower opening of the cartridge body; a blow-down valve is arranged in the center of the lower cover; three support legs are arranged at the bottom of the lower cover; the filter screen is placed in the middle inside the cartridge body and comprises bagged activated carbon, wire screen filter cotton and an iron screen frame; the air inlet pipe and the air outlet pipe are arranged on the outer side of the side wall of the cartridge body; the air inlet pipe is located at the lower part of the cartridge body and below the filter screen; and the air outlet pipe is located at the upper part of the cartridge body and above the filter screen. The cartridge compressed-air filter can be used for effectively removing vapor, dust and rust sediments in compressed air so as to greatly reduce equipment failures caused by compressed air quality, and is suitable for various equipment utilizing compressed air. Besides, the cartridge compressed-air filter is simple in structure, low in cost and convenient to mount.

The invention relates to a vehicle-mounted SCR metering and ejecting system taking exhaust gas temperature as variable. The system is characterized in that a precision thermoelectric couple is connected with a temperature control unit through a wire and installed on an expansion pipe at the inlet end of an SCR rear processor, an electromagnetic metering diaphragm pump is connected on a pipeline, and a pressure reducing valve and a urea reducing agent filter are arranged between the electromagnetic metering diaphragm pump and a urea reducing agent tank; a one-way valve is arranged at the outputend of the electromagnetic metering diaphragm pump; and a urea reducing agent nozzle is arranged at the front end of the SCR rear processor, and a one-way valve, a compressed air filter, a pressure reducing valve, a pressure gauge and a valve are connected between a gas liquid mixing unit with two cavities and an air power source. By adopting the temperature measured by the thermoelectric couple,the temperature parameter is taken as the variable, and the electromagnetic metering diaphragm pump is started through an intelligent PID controller and a self-programming computer program, so that the urea reducing agent is completely atomized in the gas liquid mixing unit with the two cavities to achieve the purpose of eliminating NOX; and the cost of the system is equivalent to one fourth to one third of that of an imported system, the reliability is high, and the industrial application is realized.

The invention belongs to the field of robots, and particularly relates to a pre-dedusting automatic paint spraying robot. The pre-dedusting automatic paint spraying robot comprises a spraying mechanical arm and further comprises an electric air pump, a compressed air filter, a first air delivery pipe, a second air delivery pipe and a jet head, wherein the spraying mechanical arm comprises a base, an arm rod and an arm front end, and a paint spraying opening is formed in the arm front end; the electric air pump comprises an air inlet and an air outlet, and the compressed air filter comprises an air inlet hole and an air outlet hole; one end of the first air delivery pipe is connected with the air outlet of the electric air pump, and the other end of the first air delivery pipe is connected with the air inlet hole of the compressed air filter; one end of the second air delivery pipe is connected with the air outlet hole of the compressed air filter, and the other end of the second air delivery pipe is connected with the jet head; and the compressed air filter, the first air delivery pipe and the second air delivery pipe are fixed in the arm rod, the electric air pump is mounted on the base, and the jet head is mounted on the arm front end. The pre-dedusting automatic paint spraying robot can use the air current of high-pressure filtered air to blow away dust on the surface of a workpiece before spraying paint on the workpiece and improves the paint spraying effect.

The invention relates to a nitrogen dehumidification dryer and a dehumidification drying method of a plastic material, which can effectively shorten the drying time and improve the drying effect. The specific technical scheme is that a sealed material barrel is connected with a nitrogen delivery device; the device comprises a compressed air filter, a nitrogen evolver, a blower and a heating device which are arranged on a delivery pipeline in sequence; the compressed air filter is arranged at an inlet of the delivery pipeline; an output end of the compressed air filter is connected with the nitrogen evolver; an output end of the nitrogen evolver is connected with the blower; the blower is connected with the sealed material barrel; the part of the delivery pipeline between the blower and the sealed material barrel is provided with the heating device. The extremely dry nitrogen is adsorbed to molecules separated from the plastic material in the sealed material barrel to discharge the molecules; compared with a pure baking means, more time is saved, the drying effect is greatly improved, and the drying requirements of various plastic materials, particularly the transparent plastic material, are easily met.

The present invention provides a skid-mounted multifunctional anti-blowout pipe pressure test system, which comprises a pressure test unit, a power unit and an automatic control unit, wherein the power unit mainly comprises a diesel fuel air compressor, a gas storage tank, a compressed air filter and a ball valve, the pressure test unit mainly comprises a rapid water injection pump, a high-pressure water injection pump, a water box, a high-pressure water injection pipeline, a rapid water injection pipeline, a plug valve, a pressure gauge and a chemical reagent injection system, the rapid water injection pump and the high-pressure water injection pump adopt the dual pump connection in parallel, the automatic control unit mainly comprises various electromagnetic valves arranged on the pressure test unit, an anti-explosion box, PLC, a printer and a laptop, the power unit is connected with the pressure test unit, and the pressure test unit is connected with the automatic control unit. According to the present invention, the skid-mounted structure is adopted, the transportation is convenient, each skid body can be separately used under the special circumstance, the double pump connection in parallel is used to perform the grading pressure test, the low-pressure pump is used to rapidly empty the injected water, the high-pressure water injection pump is used to pressurize, and the pressure test work efficiency is improved.

An exemplary compressed air filter assembly for nail gun has an end cap at a handle of the nail gun, having an inlet aperture for guiding external compressed air therein, communicating with a main air chamber of the handle; an inlet pipe extending in the inlet aperture and the main air chamber, having a ring-shaped step formed at an inner peripheral surface of a sidewall thereof; and a filter disposed at the inlet pipe. At least one bar is provided at the sidewall of the inlet pipe, transversely disposed in the inlet aperture, and the filter being disposed between the at least one bar and the ring-shaped step. The compressed air filter assembly for nail gun utilize the at least one bar to support a center portion of the filter, which can improve the strength of the filter to resist the blasting of the compressed air.

The invention relates to a compressed air comprehensive manufacturing, conveying and applying system and belongs to the technical field of compressed air application. The compressed air comprehensive manufacturing, conveying and applying system comprises a compressed air manufacturing sub-system, a compressed air filtering sub-system, a compressed air drying sub-system and a compressed air refrigeration sub-system. The compressed air manufacturing sub-system is used for compressing normal air into compressed air. The compressed air filtering sub-system is used for filtering the compressed air to obtain clean compressed air. The compressed air drying sub-system is used for removing excessive steam in the clean compressed air so that the humidity of the compressed air is constant. The compressed air refrigerating sub-system is used for cooling the compressed air to keep the temperature of the compressed air constant. The compressed air comprehensive manufacturing, conveying and applying system can provide clean compressed air with constant temperature, constant humidity and constant pressure.

The invention is related to the device of pneumatic/electric torque spanner dynamic test, consisting of turbinated air compressor, gas tank, oil-water purifier, air compressed percolator, exact pressure gauge, increase the power source consisting of a few voltage-stabilized source, high accuracy pressure air source or accuracy voltage-stabilized source or electro motion torque spanner, examined torque spanner communicates with strain torque sense organ through flexible buffer, the output system of measuring consists of dynamic strain gauge, data gathering and computer. Measuring the work torque of the examined torque spanner stimulates actual condition through flexible buffer. Buffer consists essentially of dishing spring. The device can stimulate actual condition of pneumatic/electro motion torque spanner, and gathers actual work torque at high-speed through multifunctional test instrument, realizing the torque of dynamic measuring, realizing the dynamic test of pneumatic/electro motion torque spanner.

The invention discloses a trace air-oil lubrication system of a horizontal decanter screw centrifuge and belongs to an auxiliary supporting system of the horizontal decanter screw centrifuge. The trace air-oil lubrication system is mounted on the horizontal decanter screw centrifuge. The trace air-oil lubrication system comprises a lubricating oil tank, a pneumatic oil pump, a system controller, asolenoid valve, a compressed air filter, a compressed air pressure regulation valve, an oil-air distributor, an oil spray nozzle, system pipelines and the like. The trace air-oil lubrication system is designed for effectively lubricating components rotating at high speed and is especially suitable for high-temperature, heavy-load and high-speed occasions and occasions of bad working conditions onwhich cooling water and dirt intrude into lubricating points. The trace air-oil lubrication system belongs to a high-speed running bearing reliable and economical lubrication method. Trace lubricating oil is sprayed to friction points of bearings under the action of low-pressure air flow to achieve the unmatched lubricating effect compared with other methods. The air-oil lubrication system belongs to the gas-liquid two-phase fluid cooling and lubricating technology. The lubricating oil is separated from compressed air and is continuously sprayed to the lubrication points in extremely fine oildrops.

The invention provided with a compressed air filter system for a haulage motor and an application method thereof. The system comprises a filter for removing lubricating oil in compressed air, solid dust and condensate water, a sewage discharging electromagnetic valve for discharging sump oil, sewage and the solid dust as well as a sewage discharging flexible pipe connected with the sewage discharging electromagnetic valve, wherein the sewage discharging flexible pipe is used for discharging sump oil, the sewage and solids out of the haulage motor, and the filter is connected with the sewage discharging electromagnetic valve through a connecting joint. According to the technical scheme, the compressed air generated at the outlet of an air compressor is discharged with sump oil removal, sewage removal and solid particle removal, the oil content of the compressed air after filtering is reduced to be below 0.1mg/m<3>, the condensate water and the solid particles are effectively filtered, the quality of the compressed air of the haulage motor is clean, the compressed air filter system is beneficial for the stable operation of a braking system, the potential hidden danger during running of the haulage motor is effectively reduced, fault of the braking system is effectively reduced, and the running safety of the haulage motor is increased.

The invention discloses a compressed air filtering device with an inner wall cleaning function. The device comprises an abutting pipeline, cleaning cotton and an activated carbon filter layer, a firstsliding groove is formed in the inner surface of the abutting pipeline, a mounting block is mounted at the inner side of the butting pipeline; cleaning cotton is fixedly connected to the outer surface of the mounting block, the left end of the mounting block is fixedly connected with a balancing weight, the outer side of the mounting block is rotationally connected with a pulley, the pulley is connected with the first sliding groove, the lower end of the mounting block is fixedly connected with a fixing block, the fixing block is connected with the first sliding groove, and the outer side ofthe fixing block is fixedly connected with a traction rope. The compressed air filtering device with the inner wall cleaning function can be circumferentially rotated through holding a movable handleby a user, the wound traction rope drives the cleaning cotton fixed to the outer side of the mounting block to be attached to the inner side of the abutting pipeline for cleaning work, and the movableblock is pulled to conveniently and rapidly scrape away cleaned accumulated dusts.

The invention discloses a mold local cooling system based on low-temperature high-pressure gas. The system comprises an air source capable of providing compressed air, a filter connected with the airsource through a first air pie, a pressurizing pump connected with the filter through a second gas pipe, an exchange refrigeration assembly connected with the pressurizing pump through a third air pipe and capable of refrigerating the pressurized compressed air, a mold internally provided with a cooling air flow way, and a controller. One end of the cooling air flow way is connected with the exchange refrigeration assembly through a fourth air pipe, mold cooling is carried out, and an electromagnetic valve is arranged on the fourth air pipe, and the controller is connected with the pressurizing pump, the exchange refrigeration assembly and the electromagnetic valve for control. Through the above manner, according to the mold local cooling system based on the low-temperature high-pressure gas, the low-temperature high-pressure gas is used for serving as mold cooling media, the gas can reach the mold interior where a common cooling medium cannot arrive, local cooling is rapidly achieved,the injection molding period is shortened, and the pollution is reduced.

The invention discloses a compressed air filter, and belongs to the field of compressed air filtering devices. The compressed air filter comprises a cylinder body. A gas inlet pipe and a gas outlet pipe are arranged on the cylinder body. The gas inlet pipe inclines downwards and backwards to intersect with the wall of the cylinder body so that an included angle can be formed. A spiral diversion groove is formed in the cylinder body. The inlet end of the diversion groove is connected with the gas inlet pipe. The outlet end of the diversion groove is open. A plurality of filter screens are arranged in the cylinder body. The gas inlet pipe is connected with the diversion groove in a tangent mode so that the direction of compressed air entering the gas inlet pipe can be smoothly guided. By fine filtering out water in compressed air in the filter and discharging compressed air, the quality of an air source is prevented from being influenced by too much water in compressed air, pneumatic elements are prevented from being damaged by too much water, basically no electric energy is needed, mechanical loss is little, and no maintenance is needed.