62results about How to "Improve inhalation performance" patented technology

The present disclosure provides an air cleaner including: an air cleaning module including a fan housing, a cylindrical filter, and a filter frame; a shell provided with a suction inlet and comprisingtwo parts; the filter frame includes: a lower frame, an upper frame and a plurality of support frames, wherein the fan housing is arranged above the filter frame and is supported by the filter frameand the plurality of through holes are uniformly spaced in the circumferential direction along the outer peripheral surface of the shell; the suction inlet includes a lower suction portion and an upper suction portion; when the two parts are separated from the air cleaning module, the outer peripheral surface of the cylindrical filter, the filter frame, and the outer surface of the fan housing areall opened, and the cylindrical filter can be drawn out in a radial direction through a space between the plurality of support frames. According to the invention, the suction capacity is improved, the structural resistance of the shell cannot be generated in the air suction process, and the suction area of air can be increased.

A strong pressure and a strong shearing force are exerted to a mixture, constituted of two kinds or more of powder materials including a drug powder, while causing the mixture to pass between a press section (26) of a press head (24) and a receiving surface (25) of a cylindrical rotator (23), thereby combining the drug powder with the other powder material. For example, at least one of a drug and a biocompatible polymer is made into a nano particle whose average particle diameter is less than 1000 nm, and the nano particle is made into a composite in accordance with a dry mechanical particle combining method, so as to form a polymer nano composite particle. Thus, it is possible to produce a composite particle, which contains a drug under a stable condition, in a short time, and it is possible to remarkably improve its handling property without losing advantages of the nano particle. As a result, it is possible to favorably apply the foregoing technique to DDS of a powdery drug taken into the body through the lung or a similar drug.

The invention relates to a strip deflector for deflecting a rolling medium from the surface of a metal strip. The invention further relates to a roll assembly, comprising a roll, adjacent to which the strip deflector is placed at a distance, and comprising the strip deflector according to the invention. The strip deflector consists substantially of a main body, in which a compressed-air chamber and a nozzle (116) connected to the compressed-air chamber in a flow-conducting manner are formed. The nozzle (116) comprises a first nozzle channel segment (116-I) connected to the compressed-air chamber (114) and a second nozzle channel segment (116-II) connected downstream. According to the invention, in order to improve the sealing action of the strip deflector with respect to the roll in a roll stand, the side wall (116-I-2) facing away from the tip (112) of the main body (110) is bent away from the tip (112) of the strip deflector, a second separation edge (119) thus being formed at the end of the second nozzle channel segment (116-II).

The invention relates to a submersible cutting sewage pump with efficient hydraulic performance and belongs to the technical field of submersible pumps. The submersible cutting sewage pump comprising a submersible motor is characterized in that the submersible motor is connected with a pump body below through a connection segment to form a cooling and lubricating oil chamber; an efficient large-pass semi-open impeller having a rear cover plate is disposed in the center of the lower portion of the pump body; an inlet edge of each impeller blade is provided with a 30-45-degree large guiding tilt angle from the rear cover plate and a front cover plate, and a center line of an impeller blade outlet pass is flush with a center line of a radial outlet of the pump body; the lower end face of the pump body is connected with a pump base, a cutting disc which is axially adjustable is connected to the upper portion of the pump base, the cross section of the upper end of the cutting disc is completely the same as a flow surface of the front cover plate, projecting to the impeller blade axial surface, in shape, and a 0.2-0.3 mm required gap can be formed between the upper end of the cutting disc and the flow surface of the front cover plate, projecting to the impeller blade, by adjusting axial movement of the cutting disc. The submersible cutting sewage pump is high in hydraulic efficiency, has a wide efficient area, allows suctioning and passage of large particles, and has good effect of impurity cutting and tearing.

The utility model relates to a crawler-type underwater ecological precision thin-layer desilting machine, which belongs to the technical field of environmental protection. It is composed of main system, hydraulic control system, mud suction system and walking system. The main system is the overall support. The mud suction system is set in front of the main system, and the walking system is set under the main system. The main system includes: box body, support Rod, bracket, lighting device, camera monitoring device, connection mode: the middle part of the box body is connected with the bracket, the bracket is connected with the support rod, the upper part of the box body, the lighting device and the camera monitoring device are respectively connected with the upper part of the box body, and the lighting device is connected with the upper part of the box body. The camera and monitoring devices are all rotated 360°, the hydraulic control system is installed in the box, the mud suction system is set in the middle of the box, the support rods and brackets are connected with the mud suction system, and the lower part of the box is symmetrically connected with the walking system. The invention has the characteristics of small size, light weight, simple structure and convenient operation, and is especially suitable for water purification projects of natural water bodies such as vast rivers, lakes and reservoirs in my country.

The invention provides a mechanical seal pumping circulation device for an agitator. The top of the sealing cavity is connected to the shaft sleeve through the air-side sealing core, the bottom of the sealing cavity is fixedly connected to the base, and the base and the shaft sleeve are connected through the medium-side sealing core. A liquid sealing cavity is formed, a stator is fixed on the sealing cavity, a rotor is fixed on the shaft sleeve, and the rotor is at a position opposite to the stator. The invention has good self-circulation ability, the sealing liquid is sucked in the axial direction, the influence of centrifugal force is ignored, the structure of the stator and the rotor has little agitation for the sealing liquid, the generated stirring heat is small, and the energy loss is low. The sealing liquid has good suction performance, uniform flow and pressure, stable operation, and no extra impact on the mechanical seal.