9results about How to "Improve air flow" patented technology

The utility model discloses an artificial leather relates to artificial leather technical field, and its technical scheme main points are: including epidermis layer and base cloth layer, and the base cloth layer includes comb GB1 yarn, comb GB2 yarn and comb GB3 yarn, and comb GB1 yarn and comb GB2 yarn are woven and form the warp knitting mesh eye organization together, and comb GB3 yarn forms the lining weft knitted fabric, and the breathable space is formed between the adjacent two lining weft knitted fabrics, and the epidermis layer surface is provided with a plurality of breathable holes. The utility model discloses through the cooperation of breathable hole, warp knitting mesh eye organization and breathable space, greatly increases the air flow property of both sides of artificial leather, makes the whole artificial leather have better breathable effect, thereby is favorable to the fast dissipation of the peculiar smell produced, reduces the residue of peculiar smell, and the epidermis layer is PVC resin layer, and the PVC resin has better wear resistance and corrosion resistance, thereby guarantees that the whole artificial leather has longer service life.

This invention relates to a hyperbaric oxygen chamber system with adjustable oxygen concentration. The system includes a main unit and a chamber. The main unit comprises a main control module, an oxygen regulation module, and a pressure regulation module, all electrically connected to the main control module. The pressure regulation module includes a low-oxygen air regulation submodule and a pressure-maintaining air submodule. The pressure-maintaining air submodule includes a first air compressor, a pressure relief valve, and a first sensor. The oxygen regulation module includes a second air compressor, a separation valve, a molecular sieve tower, a flow-limiting valve, and a vacuum pump. The low-oxygen air regulation submodule includes a three-way valve and a one-way valve. This invention's adjustable oxygen concentration hyperbaric oxygen chamber system can reduce the production cost of hyperbaric oxygen chamber systems, improve the user experience, and allow the oxygen concentration within the chamber to be adjusted below that of air, thus expanding its application to low-oxygen training and testing environments.

This invention discloses a grille device (100) for an air handling equipment (200), comprising: a plurality of guide vanes (102) connected to the air handling equipment. The plurality of guide vanes (102) are configured to allow airflow to pass through the grille device (100) in a direct current manner along a first direction. The guide vanes (102) include a cross-section defined by the first direction and a second direction perpendicular to the first direction, the cross-section having a maximum chord length (L) along the first direction and a maximum thickness (t) along the second direction, the ratio between the maximum thickness (t) and the maximum chord length (L) being set to reduce noise caused by the airflow while maintaining or increasing the airflow velocity.

The utility model discloses a pure silica gel foaming pillow with far infrared heating relates to pillow technical field, including pillow body and heating unit, pillow body includes bottom layer silica gel pad, middle foaming silica gel layer and surface layer compact silica gel film, and bottom layer silica gel pad is the flat plate structure, and its upper surface is bonded fixed with middle foaming silica gel layer, and middle foaming silica gel layer inside is equipped with several through ventilation channel, and surface layer compact silica gel film covers in the upper surface of middle foaming silica gel layer, heating unit includes far infrared heating film and heat conduction base plate, and heat conduction base plate is aluminium foil layer, and adheres to the lower surface of far infrared heating film. The heating unit is embedded between middle foaming silica gel layer and surface layer compact silica gel film, adopts the composite heat conduction structure of far infrared heating film cooperation aluminium foil heat conduction base plate and high heat conduction silicone grease, can make heat spread fast, evenly horizontally, avoids local overheating, realizes safe, stable, efficient heat conduction, promotes local blood circulation, relieves muscle fatigue and neck stiffness.

A kind of floating waist support seat cushion, including back cushion part and seat cushion part;Back cushion part includes back cushion support and back cushion net surface, back cushion net surface connects back cushion support;Seat cushion part includes seat cushion support and seat cushion net surface, seat cushion net surface connects seat cushion support;Back cushion support is rotatably connected seat cushion support.The utility model relates to a kind of floating waist support seat cushion by being provided with breathable net surface in seat cushion part and back cushion part respectively, significantly improve the heat dissipation and air flow effect;At the same time, back cushion part and seat cushion part use rotary connection mode, so that the waist support seat cushion can be flexibly switched between use state and folding storage state, with convenient use and carrying convenience;Further, the user can rest on the back of the back cushion part of the seat cushion, which can reduce the probability of humpback and myopia caused by the user's sitting posture.

The application relates to the technical field of micro fans, in particular to a multi-jet-hole guide fan, which comprises a fan body and a guide device arranged on one side or both sides of the fan body through a gap, at least two jet-hole units are arranged on the side of the fan body close to the guide device, and each jet-hole unit comprises at least two jet holes arranged at intervals, in the application, the design of a single first guide channel with multiple jet holes can help to expand the suction range when the airflow sprayed by the multiple jet holes enters the corresponding first guide channel after passing through the guide cavity, meanwhile, the one-to-many mode can reduce the local pressure peak value, inhibit the formation of turbulent flow and the impact on the wall surface of the first guide channel, and is beneficial to improving the flow and reducing the noise; on the other hand, the setting of the convex part can force the circumferential gas to smoothly turn along the surface of the convex part, reduce the airflow separation area, and reduce the instability of the shear layer.

This utility model discloses a breathable and comfortable polyester fabric, relating to the field of textile technology. The key technical points are: a first abutment is provided below the breathable section; a through-groove is provided through the moisture-absorbing section; a moisture-dissipating sheet is provided above the moisture-absorbing section; a second abutment is fixedly connected to the side of the moisture-dissipating sheet near the breathable layer; the second abutment extends through the through-groove into the breathable layer; a breathable space I, interconnected with the through-groove, is formed between the first and second abutments and the breathable layer; and several grooves, interconnected with the through-groove, are provided on both sides of the breathable layer. This utility model utilizes the cotton fiber-made first and second abutments to provide a soft and comfortable feel when in contact with the skin, and to effectively absorb sweat, keeping the skin dry and comfortable. The interconnected ventilation holes, breathable space I, breathable space II, ventilation groove, grooves, and through-groove ensure good air circulation between the interior and exterior of the fabric, giving it breathable and comfortable characteristics.

The utility model discloses a kind of chemical fibre fabrics, it relates to textile technical field, and its technical scheme main point is: the two sides of inner layer are respectively equipped with several convex one and several convex two, inner layer and outer layer are supported by several convex one and form several ventilation cavities, outer layer includes the staggered arrangement of several moisture-dispersion parts and several breathable parts along its warp direction, breathable part array is provided with several air holes one, several air holes two are provided in moisture-dispersion part and convex two, air holes one and air holes two are all interconnected with ventilation cavity.The utility model passes through several intercommunicating ventilation cavities, air holes one and air holes two improve the air circulation effect of fabric inside and both sides, since the hygroscopicity of viscose fibre is greater than the hygroscopicity of terylene profiled fibre, so that moisture absorbed by fabric will be dispersed on viscose fibre as overwrap yarn, so that good air circulation can be directly contacted with viscose fibre to quickly disperse moisture, so that the fabric made has the comfortable wearing feeling of breathable and quick-drying.