9results about How to "Low ventilation resistance" patented technology

This utility model relates to the field of duct technology, specifically to a duct with adaptable connectors, including a duct body. Connector 1 and connector 2 are fixed to both ends of the duct body. Connector 1 has an integrally formed alignment plate on its surface, and connector 2 has an alignment slot on its surface. When two sets of duct bodies are assembled end-to-end, the beneficial effect is that by providing connector 1 and connector 2 at both ends of the duct body, with connector 1 having an integrally formed alignment plate and connector 2 having an alignment slot, the alignment plate is inserted into the alignment slot during assembly. Since the alignment plate is annular and the alignment slot is annular, this structure ensures accurate alignment of the two sets of duct bodies, avoiding misalignment during assembly, thereby ensuring uniform airflow distribution in the ventilation system, reducing ventilation resistance, and improving ventilation efficiency.

The utility model discloses a multichannel heat dissipation casing structure of inflator pump, concretely relates to inflator pump technical field, including the shell, is provided with the inflator pump main part outside the shell, and the output fixedly connected with the air outlet pipe of inflator pump main part, the top fixedly connected with two positioning frame of shell, the fixedly connected with the handle of positioning frame inboard, handle inboard and air outlet pipe outside sleeve joint, the fixedly connected with two supports of inflator pump main part bottom, the fixedly connected with the bottom plate of support lower surface, the fixedly connected with a plurality of cushion block of bottom plate bottom, the fixedly connected with the air intake mechanism of bottom plate inboard, the top is provided with the heat dissipation mechanism of shell. The utility model utilizes a plurality of trapezoidal air inlet cover to accelerate airflow flow and enhance the penetrating power, improve internal air flow field, reduce ventilation resistance, combine top inclined top cover, heat conduction fin and opening design simultaneously, effectively discharge hot air, avoid heat accumulation, optimize the heat dissipation air duct, realize uniform heat dissipation, maximize the fan air volume and reduce airflow waste.

The utility model relates to a ventilation structure of ship cabin belongs to ship technical field, including first ventilation pipe (1) and second ventilation pipe (2), first ventilation pipe (1) one end is equipped with ventilation opening (17), ventilation opening (17) is equipped with the ventilation cover (8) of openable, realizes exhaust and waterproof. First ventilation pipe (1) other end and second ventilation pipe (2) one end are connected through connecting mechanism (4), connecting mechanism (4) includes first flange (6) and second flange (7), through setting a group of flanges between first ventilation pipe (1) and second ventilation pipe (2), form detachable structure, convenient welding, polishing and coating after welding, second ventilation pipe (2) other end is connected with reducing adapter (5), be used for ventilation cross section sudden change problem, reduce ventilation resistance.

The utility model relates to the field of seat ventilation, in particular to a novel seat air suction system which comprises a foaming part, a sealing plate and a fan, a ventilation groove is formed in the B face of the foaming part, a through ventilation hole is formed in the groove bottom of the ventilation groove, the sealing plate is connected with the foaming part and covers the ventilation groove, the sealing plate is provided with a ventilation opening, and the fan is connected to the ventilation opening. The sealing plate can comprise a felt plate and a fixing plate, the fan is connected with the sealing plate through rubber nails, the fan further comprises a machine shell, a connecting block, a clamping block and other structures, and the fan can be a vortex fan or a butterfly fan. The technical effects that effective air suction is achieved through reasonable structural design, and the seat ventilation effect is optimized are achieved.

The utility model relates to a structure of reducing return air passage ventilation resistance of non - coal mine belongs to ventilation structure technical field, including wall, false roof, the outside of wall close to lower air duct section is equipped with gangue filling upper air slope, the outside of wall close to upper air duct section is equipped with gangue filling lower air slope, and the false roof includes the steel rail support, anchor net no.

The utility model relates to the technical field of corollary equipment of sintering machines, and particularly discloses a material distributing device for a belt type sintering machine, which comprises a blanking component, an obliquely arranged sieve plate positioned under the blanking component, a conveying seat positioned under the sieve plate, and a material conveying belt arranged in the conveying seat and opposite to the moving direction of a grate trolley, side discharging openings are formed in the two side faces, away from the lower inclined end of the screening plate, of the conveying base correspondingly, guide plates with the outer ends inclining downwards are installed in the side discharging openings, an offcut guide plate attached to the upper surface of the conveying belt is arranged at the upper end of the conveying base, and the outer end of the offcut guide plate extends into a gap between the conveying belt and the side wall of the conveying base. According to the material distributing device, the material layers can be laid in an up-and-down layered mode according to the size of materials, the ventilation resistance of the whole material layers is reduced, large-pore parts at the side ends of the material layers can be filled, the ventilation resistance of the whole material layers is consistent, and the problem that decarburization sintering is not uniform is effectively solved.

A low-resistance powder concentrator rotor structure, a rotor upper cover plate, a rotor middle plate and a rotor lower cover plate are arranged from top to bottom on the outside of a rotor shaft sleeve and a rotor cone, the rotor upper cover plate and the rotor middle plate are connected with the rotor shaft sleeve or the rotor cone through a rotor connecting plate, and the rotor lower cover plate is directly connected with the rotor cone; a plurality of inclined grooves are formed on the rotor upper cover plate and the rotor middle plate; the rotor connecting plates are arranged in pairs, have the same shape and are symmetrical about the rotor axis; the shapes of the adjacent two rotor connecting plates are different, the included angles with the horizontal plane are different, and the rotor connecting plates are arranged in the form of vertical plates, so that the high-speed airflow in the rotor cage is hindered and scattered. The present application interferes with the generation of the resistance surface of the connecting part position by the special connecting plate and vertical rod arrangement, so that the number of the connecting parts in the same plane or cone surface is small, the ventilation cross-sectional area is increased, and the power consumption of the vertical mill system fan is reduced.

This application relates to the field of mine transportation technology, and in particular to a mine transportation system. The mine transportation system includes an inclined shaft, a set-off roadway group, a monorail track, and a roof support structure. The inclined shaft extends at an angle. The set-off roadway group includes a set-off yard and a connecting roadway. The set-off yard curves and connects the inclined shaft, the north wing roadway working face, and the south wing roadway working face. The intersection of the set-off yard and the inclined shaft is the first junction. The connecting roadway connects the inclined shaft and the set-off yard. The intersection of the connecting roadway and the set-off yard is the second junction, and the intersection of the connecting roadway and the inclined shaft is the third junction. The second junction is located between the south wing roadway and the north wing roadway, and the second junction is spaced between the first and third junctions. Monorail tracks and roof support structures are installed at the top of each roadway. This mine transportation system not only improves the transportation efficiency of the monorail locomotive but also significantly optimizes its performance in transportation, roof support management, and ventilation.

The utility model relates to the technical field of ventilation and noise reduction of liquid cooling equipment, and discloses an energy storage liquid cooling unit noise reduction structure suitable for high wind speed and low pressure loss ventilation and noise elimination, which comprises an exhaust channel, an air inlet channel, an upper ventilation static pressure cavity, a lower ventilation static pressure cavity, a slide rail type noise elimination blade assembly, an insertion type noise elimination module, an anti-bird net and a drainage structure. The air exhaust channel and the air inlet channel are provided with the trapezoidal perforated silencing pieces and the sliding rail plug-in type silencing blades correspondingly, the airflow direction is optimized through the static pressure cavity, and pressure loss is reduced. And the silencing structure adopts a modular design, so that quick disassembly, assembly and maintenance are facilitated. The anti-bird net and the water guide plate enhance the outdoor adaptability of the equipment. The structure has the advantages of small ventilation resistance, good noise reduction effect, convenience in assembly, safety, reliability and the like, and is suitable for ventilation and noise elimination application scenes of high-power liquid cooling equipment.