29 results about "Compressed air filters" patented technology

The utility model relates to the technical field of air pressing equipment, in particular to air pressing equipment integrating an air dryer and an air compressor into a skid, which comprises a skid seat, an air compressor, a refrigeration type compressed air dryer, a compressed air filter, an air-water separator group and a double compressed air filter group. The utility model focuses on the innovation of the air pressing equipment, and provides the air pressing equipment which integrates the air dryer and the air compressor into the skid for solving the problems of dispersion, low efficiency, poor precision and the like of the traditional air dryer and the traditional pressing equipment. The air compressor supplies air, the refrigeration type compressed air dryer dehumidifies and then is precisely regulated and controlled through the PLC in combination with the high-precision pressure controller, and the device has the outstanding advantages of integration, high efficiency, precise pressure control, safety, reliability, wide application and the like, and can be widely applied to air pressure testing requirements of industries such as petrochemical engineering, natural gas, pressure pipelines and pressure containers.

A portable compressed air filter using a multi-tube cyclone according to one embodiment of the present invention comprises: a housing in which an air flow part is formed and into which compressed air is introduced and discharged; and an impurity separation unit provided in the air flow unit of the housing and separating impurities from compressed air, the impurity separation unit including, in an upper portion thereof: a first cyclone forming unit that centrifugally separates the impurities by causing the introduced compressed air to flow in a swirling flow manner, and a second cyclone forming unit that centrifugally separates the impurities in the swirling flow manner; and a second cyclone forming unit which is provided on the inside of the first cyclone forming unit and which centrifugally separates impurities by causing the compressed air that has passed through the first cyclone forming unit to flow again as a swirling flow.

To provide an improved filter medium. [Solution] The present invention relates to a filter material comprising I) a first nonwoven meltblown layer, wherein the meltblown nonwoven fabric comprises a) 20 to 80% by weight of at least one styrene-based thermoplastic elastomer and b) 20 to 80% by weight of at least one polyolefin. The present invention also relates to the use of filter materials for coffee filters, coffee capsule filters, compressed air filters and face masks.

This utility model relates to the field of bio-organic fertilizer technology and discloses a screening device for bio-organic fertilizer, including a shell, a filter assembly in the middle of the shell, and a discharge port at the bottom of the shell. The screening device for bio-organic fertilizer of this utility model uses an auger to push organic fertilizer to the left and a turning plate to turn the organic fertilizer, thereby screening it through a screening cylinder. Because the screening cylinder is tilted and higher on the left than the right, the bio-organic fertilizer stays inside the screening cylinder for a longer time, improving the screening effect. An air pump compresses air filtered by an air filter and delivers it into the output pipe through a three-way pipe, finally spraying it out from a nozzle to backflush the rotating screening cylinder, thereby blowing out organic fertilizer stuck in the screening cylinder holes. Cleaning brushes clean the outside of the screening cylinder to prevent the screen holes from becoming clogged, improving production efficiency.

The present invention belongs to the field of compressed air filters, specifically a compressed air filter that is easy to maintain and a maintenance method thereof, comprising an upper accommodating shell, a lower accommodating shell, a filter cartridge, a sealing mechanism and a control mechanism, the bottom surface of the upper accommodating shell is fixedly connected to the upper end surface of the lower accommodating shell, the filter cartridge is slidably inserted into the inner cavity of the lower accommodating shell, the sealing mechanism comprises a partition plate and a sealing valve plate, the partition plate is fixedly mounted on the inner wall of the upper accommodating shell, the sealing valve plate is slidably mounted in the inner cavity of the upper accommodating shell, the outer wall of the sealing valve plate has a tendency to fit with the inner wall of the partition plate in real time, the control mechanism comprises a bearing mesh plate and a top shaft, the bearing mesh plate is detachably mounted in the inner cavity of the lower accommodating shell; through the cooperation of the above-mentioned structures, the filter cartridge can be replaced and cleaned without stopping the machine, thereby ensuring the progress of production work and improving efficiency.

The utility model relates to the technical field of coal mine ventilation equipment, and discloses a coal mine underground compressed air filtering device which comprises a machine box, an air inlet pipe is fixed to the right end of the machine box, an air outlet pipe is fixed to the left end of the machine box, and an air blower and a negative pressure machine are fixed to the middle of the upper portion of the machine box. An outer forward and reverse rotation motor is fixed to the outer side of the upper portion of the machine box, a filter plate sliding rail is fixed to the left side of the interior of the machine box, a filter element sliding rail is fixed to the right side of the interior of the machine box, a filter plate is movably connected to the filter plate sliding rail in an inserted mode, and a first sliding plate, a second sliding plate and a third sliding plate are movably connected to the three filter plate sliding rails in an inserted mode respectively. The first sliding plate, the second sliding plate and the third sliding plate are each provided with a filter screen. According to the filtering device for compressed air in the underground coal mine, air can be preliminarily filtered through the filtering plate, impurities on the filtering plate can be cleared away, the air can be filtered again through the three filtering nets, and the air filtering quality is improved.

The utility model relates to the technical field of compressed air filters, in particular to a pipeline connecting mechanism and an air filtering device.The pipeline connecting mechanism comprises a first mounting pipe, a connecting disc is mounted at one end of the first mounting pipe, a mounting groove is formed in the surface of the first mounting pipe, a limiting plate is slidably connected into the mounting groove, and a tension spring is mounted on one side of the limiting plate; and one end of the tension spring is connected with the bottom of the inner cavity of the mounting groove. By arranging a limiting plate, a limiting groove, a tension spring, a downward pressing part and other structures, rapid disassembly and assembly between the first mounting pipe and the second mounting pipe can be achieved, and meanwhile by arranging a shielding part, a limiting part and a traction part, the stability of connection between the first mounting pipe and the second mounting pipe can be improved; and the first mounting pipe and the second mounting pipe are convenient to disassemble, so that the replacement time of the compressed air filter is shortened, and the problem that the compressed air filter is inconvenient to replace in the prior art is solved.

The invention relates to a filter element (2), in particular a replaceable filter element, in particular for separating particles and / or gases and / or liquids, in particular a filter cartridge, for use in a filter, in particular a compressed air filter, in particular as part of a filter having a plurality of filter stages, comprising a substantially tubular main body (27) having an annular end side (21) facing towards a filter head, a lower side (28), a circumferential surface (29), wherein in the region of the end side (21) a plurality of, preferably four, retaining arms (30) extending radially with respect to a central axis (18) are provided, and a circular annular filter element sealing surface (6) is provided at the end side (21), wherein the retaining arms (30) project with respect to the filter element sealing surface (6). The invention also relates to a filter having such a filter element (2).

The utility model provides a compressed air filter which comprises a shell, a filter cavity is formed in the shell, a liquid outlet communicated with the filter cavity penetrates through the bottom of the shell, a plurality of abutting edges distributed at intervals in the circumferential direction are arranged on the side wall of the lower portion of the filter cavity in a protruding mode, and the opposite sides of the abutting edges are sunken to form limiting grooves; the upper end cover and the lower end cover are arranged at the upper end and the lower end of the filter cylinder in a sealed mode respectively, the outer edge of the lower end cover protrudes downwards to form an abutting part and protrudes upwards to form a limiting part arranged on the outer side of the lower end of the filter cylinder in a sleeving mode, the filter cylinder is vertically arranged in the filter cavity, and the lower end of the filter cylinder is limited in the limiting grooves in an abutting mode through the abutting part. An insertion hole penetrates through the middle of the upper end cover; the top cover and the detachable sealing cover are arranged on the shell, an air inlet pipeline with the inner end portion being detachably inserted into the inserting hole in a sealed mode and an air outlet pipeline with the inner end portion communicating with the filter cavity are arranged on the side wall of the top cover in a penetrating mode, and a limiting ridge abutting against the top of the upper end cover is arranged on the inner side of the top cover in a downward protruding mode. The convenience of disassembling and assembling the filter element can be improved, and the filtering efficiency is improved.

The utility model relates to an underground coal mine compressed air filtering device which comprises a shell, an air inlet and an air outlet are formed in the shell, and the air outlet is used for being communicated with an air inlet pipe of compressed air equipment; the filter assembly comprises a mounting frame and a filter screen mounted on the mounting frame, and under the suction action of the compressed air equipment, external air vertically acts on the filter screen through the air inlet to be filtered and enters an air inlet pipe of the compressed air equipment through the air outlet; wherein sliding grooves are formed in the two opposite side walls of the shell, the two sides of the mounting frame are in sliding connection with the sliding grooves, a maintenance opening and a cover plate for sealing the maintenance opening are formed in the positions, corresponding to the filtering assembly, of the top wall of the shell, the filtering assembly is mounted in the shell in a pluggable mode through the maintenance opening, and the mounting frame can be mounted in the shell in a pluggable mode through the maintenance opening. Therefore, a user pulls the mounting frame upwards, the filter screen connected with the mounting frame can leave the interior of the shell, workers can maintain the filter screen conveniently, and the working stability and reliability of the filter screen are guaranteed.

1. Name of the product in this design: Compressed air filter. 2. Purpose of this design: To obtain relatively pure compressed air. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model belongs to the technical field of expanders, particularly relates to an underground wind power expander, and aims to solve the problem that a local ventilator is not convenient to install due to the fact that a special vehicle transportation support of an existing super-long reversing chamber turns around frequently and the like, the underground wind power expander comprises a conical barrel body, a compressed air distributor is fixed in the conical barrel body, and the compressed air distributor is arranged in the conical barrel body. A compressed air inlet pipe communicated with the compressed air distributor is fixed in the conical barrel body, the compressed air inlet pipe is communicated with the compressed air pipeline, a compressed air filter is arranged in the compressed air inlet pipe, a secondary air distributor is further fixed in the conical barrel body, a plurality of fixing rods are fixed at an air outlet of the conical barrel body, and a same pressure equalizer is fixed in the fixing rods. A plurality of connecting rods are fixed in the pressure equalizer; and through the design of the two connecting assemblies and the two extruding assemblies, the conical barrel body and the fixing ring can be rapidly mounted and dismounted, and daily maintenance and replacement are facilitated.

The utility model belongs to the technical field of compressed air filtering, and particularly relates to a compressed air filtering device which comprises a lower storage tank body and an upper storage tank body, the upper storage tank body is connected to the upper end of the lower storage tank body, and supporting legs are fixedly connected to the outer side of the lower end of the lower storage tank body at equal intervals. According to the compressed air filtering device, when compressed air is filtered, the compressed air is introduced into the lower storage tank body and the upper storage tank body from the air inlet, then flows rightwards from the lower end of the Z-shaped plate, and is filtered by the filtering adsorption device at the lower end of the Z-shaped plate, so that moisture, oil and impurities in the compressed air are left at the outer end of the filtering adsorption device; compressed air filtered by the filtering and adsorbing device enters a heater through a through hole in the upper end to be heated and dried, finally, the compressed air is discharged from an air outlet in the right end and monitored through smoke online monitoring equipment installed at the right end of the air outlet while being discharged, impurities in the air are removed through filtering, and the accuracy and reliability of monitoring data are guaranteed.

The air filter holder comprises: - a frame-like support framework (1) and a frame-like cover (2), which cover (2) is placeable over the support framework (1) so that the cover (2) settles in the lateral direction in a form-restricted manner over the support framework (1), forming a frame together with the support framework (1), which frame i) defines the filter area in the lateral direction and on the other hand also ii) becomes hollow, leaving a free volume on the inside for receiving the filter; and - a number of fasteners (3). The support framework (1) and cover (2) are closable with respect to each other by pressing them against each other in order to compress the air filter (4) to be installed in the free volume of the air filter holder, after which the support framework (1) and cover (2) can be kept closed by means of a number of fasteners (3), which are slid over the frame from the outer edge of the frame in the lateral direction, which fasteners (3) keep the support framework (1) and cover (2) closed by becoming tightened when the compressed air filter attempts to decompress, most advantageously by means of the tension caused by the elastic deformation of the fasteners (3). The application contains independent claims relating to various air filter holders, pocket filters, filter cartridges and to the method for keeping the pocket filter or filter cartridge closed.

The utility model discloses a compressed air filter easy to disassemble and replace, and belongs to the technical field of filters. Comprising a filter body which is detachably mounted in an air inlet of an external electromagnetic valve or mounted on a quick connector matched with the electromagnetic valve; the filter body comprises a support matched with the size of the air inlet of the electromagnetic valve, and the support abuts against the valve port wall of the air inlet of the electromagnetic valve through a quick connector. The filtering part is connected with the support, the filtering part is provided with a static intercepting structure or a dynamic separating structure and used for intercepting impurities in the compressed air, and the compressed air flows through the filtering part and then enters a valve cavity of the electromagnetic valve. The filter body can be installed in the air inlet of the electromagnetic valve in a matched mode, compared with the mode that a filter connector is adopted for filtering, the cost is reduced, a specific static intercepting structure or a specific dynamic separating structure is adopted for the filtering part, the good filtering effect is guaranteed, meanwhile, airflow cannot be remarkably limited, and the filtering effect is good. And efficient operation of the electromagnetic valve is ensured.

The utility model relates to the technical field of denitration CEMS analyzer sampling systems, in particular to a denitration CEMS analyzer sampling system which comprises an instrument and a sampling assembly, the sampling assembly comprises an air source pump, a first needle valve, a second needle valve and a compressed air filter, the air source pump is arranged on one side of the instrument, the first needle valve is arranged on the other side of the instrument, and the second needle valve is arranged on the other side of the instrument. The first needle valve is arranged on one side of the air source pump, the second needle valve is arranged on the other side of the air source pump, and the compressed air filter is arranged on one side of the second needle valve. The utility model has the beneficial effects that after the original electric vacuum pump driven by a power supply is replaced by the Venturi pump, the instrument is driven by a gas source and is not influenced by ash sulfur components, and the Venturi pump is simple in structure, stable in sampling and more durable; the Venturi pump is longer in service life and can continuously and stably run for 2-3 years.

The compressed air filter comprises a mounting shell, a first filtering assembly, a second filtering assembly, a silica gel filtering assembly and an activated carbon filtering assembly, and the mounting shell is provided with an airflow channel, an airflow inlet and an airflow outlet, the first filtering assembly, the second filtering assembly, the silica gel filtering assembly and the activated carbon filtering assembly are sequentially connected to the mounting shell and all communicated with the airflow channel, and airflow enters the airflow channel along the airflow inlet, flows through the first filtering assembly, the second filtering assembly, the silica gel filtering assembly and the activated carbon filtering assembly respectively and finally flows out along the airflow outlet; wherein the silica gel filtering assembly is provided with a containing space used for containing allochroic silica gel, a plurality of observation windows are arranged on the surface of the silica gel filtering assembly, and the observation windows allow a user to observe the allochroic silica gel in the containing space.

The application is suitable for the field of air delivery technology, and provides a compressed air delivery system, which comprises a gas distribution shell, a detachable cover plate is sealingly installed at the open end of the gas distribution shell, a plurality of air outlet covers are installed in a circumferential array on the cover plate, each of the air outlet covers is provided with an anti-backflow device, a plurality of air outlet branch pipes are respectively connected with the plurality of air outlet covers, an air inlet main pipe is connected with a compressed air source at one end and extends into an air inlet cover at the other end, and the air inlet cover is fixedly installed on the gas distribution shell. The compressed air filtered by the filter part is divided into the corresponding air outlet covers through the on-off control valve, the compressed air in the air outlet branch pipe enters the air outlet branch pipe through the air outlet cover, and the anti-backflow device is arranged to prevent the compressed air drained from the air outlet branch pipe from flowing back to the gas distribution shell.

The invention relates to a filter element (2), in particular a replaceable filter element, in particular for separating particles and / or gases and / or liquids, in particular a filter cartridge, for use in a filter, in particular a compressed air filter, the invention relates to a filter element, in particular as part of a filter having a plurality of filter stages, comprising a substantially tubular main body (27) having an annular end face (21) facing the filter head, an underside (28), and a circumferential surface (29), a plurality, preferably four, of retaining arms (30) extending radially with respect to a central axis (18) being provided in the region of the end face (21), an annular filter element sealing surface (6) is provided on the end face (21), wherein the retaining arm (30) protrudes relative to the filter element sealing surface (6). The invention also relates to a filter having such a filter element (2).

The compressed air filtering device comprises a compressor main body, an air inlet filtering cylinder is arranged at the compressed air inlet end of the compressor main body, a filter screen containing groove is formed in the middle of the air inlet filtering cylinder, a filter screen replacing structure is arranged in the filter screen containing groove, and a filter screen is arranged in the filter screen replacing structure. A filter screen is arranged in the middle of the filter screen replacement structure; a filter screen replacing structure is installed in a filter screen containing groove, when a filter screen needs to be replaced, a rotating handle is rotated anticlockwise to drive an upper convex positioning wheel set to rotate, a lower convex positioning wheel set connected with the upper convex positioning wheel set rotates along with the upper convex positioning wheel set, and the filter screen is pushed out of the filter screen containing groove; then, positioning holes in the two sides of a new filter screen are aligned to convex columns on the convex positioning wheel set, the rotary handle is rotated clockwise, the filter screen is fed into the filter screen containing groove through the convex positioning wheel set, and replacement of the filter screen is completed.

The utility model relates to the technical field of thermal power plants, and discloses a simple compressed air filtering device for a thermal power plant, which comprises a compressed air inlet pipe, a water removal filter, a water drainage pipe, a first connecting pipe, an oil removal filter, an oil drainage pipe, a second connecting pipe, an impurity removal device and a compressed air outlet pipe, and the drainage pipe is fixedly mounted at the bottom of the water removal filter. According to the simple compressed air filtering device for the thermal power plant, compressed air is introduced into the compressed air inlet pipe, the compressed air passes through the water removal filter, the water drainage pipe, the first connecting pipe, the oil removal filter, the oil drainage pipe and the second connecting pipe, water removal and oil removal operation can be conducted on the compressed air, and finally the compressed air is discharged from the compressed air outlet pipe through the filtering bag. And the filter bag is formed by winding matrix composite glass fibers and high-density pp cotton, so that the compressed air can be further dewatered and deoiled while being dedusted, and the purification effect on the compressed air is good.

A filter element, in particular a replaceable filter element, more particularly for separating particles and / or gases and / or liquids, in particular a filter cartridge for use in a filter, more particularly a compressed air filter, in particular as a component of a filter comprising multiple filtration stages, includes a substantially tubular body with an annular end face that faces a filter head, an underside, and a circumferential surface. Multiple, preferably four, retaining arms, running radially in relation to the central axis, are provided in the region of the end face and a toroidal filter-element sealing surface is provided on the end face, and the retaining arms protrude in relation to the filter-element sealing surface. The filter element is usable in a filter.

1. Name of this design product: Filter cartridge cover. 2. Purpose of this design: Filter cover for compressed air filters. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the Design Product: Filter Element Cover (CP-354). 2. Use of the Design Product: The cover for the filter element of a compressed air filter. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

A portable compressed-air filter using a multi-cyclone device, according to an embodiment of the present invention, comprises: a housing having an air flow part formed therein, through which compressed air is introduced and discharged; and an impurity separation part provided in the air flow part of the housing to separate impurities from the compressed air, wherein the impurity separation part comprises: a first cyclone-forming part provided at an upper portion thereof, to induce the introduced compressed air into a swirling flow and centrifugally separate impurities; and a second cyclone-forming part provided inside the first cyclone-forming part, to induce the compressed air, having passed through the first cyclone-forming part, into a swirling flow again and centrifugally separate impurities.

The present invention discloses a low-energy-consumption compressed air respiratory protection system and method for a tunnel boring machine driver. The system includes a compressed air respiratory protection portion and a tunnel boring machine energy recovery portion. The compressed air respiratory protection portion includes a compressed air breathing mask and a compressed air filter device. The tunnel boring machine energy recovery portion includes a piston mechanism, an air storage mechanism, an electric energy storage mechanism, a magnetic induction coil, a heat storage mechanism, a thermal switch, and an electrically controlled thermal phase change mechanism. The present invention utilizes the compressed air respiratory protection portion to supply purified air treated by the compressed air filter device to the tunnel boring machine driver via the compressed air breathing mask, thereby ensuring the tunnel boring machine driver's respiratory safety in complex environments. The tunnel boring machine energy recovery portion can recover the heat energy generated during the tunnel boring machine excavation process and convert it into electrical energy to power the respiratory protection system. This can minimize the impact of dust in the working environment on the tunnel boring machine driver while achieving low energy consumption.

A false twister compressed air dehumidifying and filtering device easy to dye polyurethane comprises a compressed air header pipe and a plurality of compressed air branch pipes connected with the compressed air header pipe, and the compressed air branch pipes are connected with an air inlet of a false twister. A pressure reducing valve, a heater, a temperature sensor and a compressed air filter group are sequentially arranged on the compressed air header pipe in the air conveying direction; a pressure reducing valve and a flow meter are sequentially arranged on the compressed air branch pipe in the air conveying direction; the heater is arranged in front of the compressed air filter set and heats and vaporizes most of liquid water in the compressed air, so that the filtering load of the compressed air filter set is reduced. Compared with the prior art, the device has the advantages that the design that compressed air is firstly heated and then filtered is adopted, so that the liquid water content in the compressed air can be greatly reduced, meanwhile, the problem that the filtering effect is reduced due to the fact that the compressed air is directly filtered and a filtering medium is moist is solved, impurities can be effectively removed, cohesive force deviation of spandex filaments is greatly improved, and the service life of the spandex filaments is prolonged. And the filter element is low in filtering load, long in replacement period and high in economical efficiency.

The invention discloses an adjustable compressed air filter which comprises a first filter assembly, a second filter assembly, a third filter assembly and an air pressure adjusting assembly, the first filter assembly is provided with a first air inlet and a first air outlet, and the first air inlet is used for allowing compressed air to be filtered to penetrate; the second filtering assembly is provided with a second air inlet and a second air outlet, and the second air inlet is communicated with the first air outlet; the third filtering assembly is provided with a third air inlet and a third air outlet, the third air inlet is communicated with the second air outlet, and the third air outlet is used for allowing filtered compressed air to penetrate out for use; the air pressure adjusting assembly is connected to the upper end of the second filtering assembly, the air pressure adjusting assembly is provided with an air inlet channel, the air inlet channel communicates with the second air inlet, and the air pressure adjusting assembly is used for adjusting the pressure of air entering the second filtering assembly. Through the arrangement of the structure, the air pressure of airflow entering the second filtering assembly can be adjusted, the filtering effect can be guaranteed, a filtering material can be prevented from being damaged, and the service life of a product is prolonged.

The utility model discloses a wet type granulator with a spraying and feeding mechanism for effervescent tablets, which relates to the technical field of granulation equipment and comprises a bottom bearing frame, the right side of the top of the bottom bearing frame is fixedly connected with a water aqua barrel, and the left side of the top of the water aqua barrel is fixedly connected with a granulation pot. The top end of the bottom bearing frame is provided with a spraying feeding assembly capable of preventing powder from adhering to the spraying opening. According to the effervescent tablet wet type granulator with the spraying and feeding mechanism, by arranging an air pump, a nozzle connector, an atomizing nozzle and a nozzle outer protective cover, when the effervescent tablet wet type granulator is used, the air pump is started and continuously pumps air, compressed air filtered by a compressed air filter enters a water agent barrel, the atomizing nozzle at the bottom of a spraying electromagnetic valve sprays fine and dense water mist downwards in the inclined direction, and the water mist is fed into the water agent barrel; the nozzle outer protective cover can stop striking of powder, the probability that the atomizing nozzle discharges aleurone is reduced, the function of preventing the nozzle from being blocked is achieved, and the problem that the device does not have the function of preventing the nozzle from being blocked is solved.