30results about How to "Ensure air" patented technology

Provided is an architectural structure which has improved safety, comfortableness, and economic efficiency by achieving an enclosed structure and isolation from the outside. An architectural structure is characterized by being provided with: a foundation (3); a wall (8) which is erected around the foundation (3) so as to be integrated with the foundation (3); a house part (2) which is disposed in the middle of the foundation (3) and serves as an indoor space; a roof (30) which covers an interior space surrounded by the wall (8), the roof (30) being supported by the wall (8) and not structurally connected to the house part (2), and a seismic isolation mechanism (40) which suppresses vibrations of the house part (2) during an earthquake, and characterized by making it possible to make the interior thereof an enclosed space by the foundation (3), the wall (8), and the roof (30).

The invention discloses an air-clean chicken house. Three rows of three-dimensional chicken cages are arranged in the chicken house. The device for keeping the air in the chicken house clean can remove the flying chicken feathers in the chicken house very well, solve the problem of environmental pollution in the chicken house caused by chicken shedding and hair moulting, keep the air in the chicken house clean, and provide a better environment for the chickens. It provides a good environment for healthy growth and the work of breeders.

The invention discloses a cow breeding shed air circulation system with disinfecting and filtering functions and belongs to the technical field of cow breeding. The cow breeding shed air circulation system comprises two circulation pipelines and multiple air pumps arranged on the circulation pipelines. The two circulation pipelines are connected through a circulation air supply device. An efficient disinfecting and filtering device is arranged between each circulation pipeline and the circulation air supply device. Each circulation pipeline is provided with an exhaust pump, a temperature adjusting device and an air inlet pump. A backflow preventing bend is arranged at the end of each circulation pipeline. A residue filtering net, a first layer of ammonia gas filtering net and a second layer of ammonia gas filtering net are arranged in each backflow preventing bend. Each air inlet pipe is provided with a disinfecting device and an inlet air flow adjusting valve. Heat preservation layers are arranged in the circulation pipelines and the backflow preventing bends. The cow breeding shed air circulation system is reasonable in design, simple, convenient to use and capable of conducting circulation filtering and purifying on air of a cow shed, cleanliness of the air in the cow shed is ensured, air is extracted from the outside and disinfected and filtered, the air in the shed is supplemented, ammonia gas is removed through the ammonia gas filtering nets, and the air in the cow shed is ensured.

The invention discloses a medical anesthesia needle based on life science technology and its use method. The top surface of the sliding piston is provided with a cross groove with an upward opening, and a connection groove is connected under the cross groove. A cross block is detachably arranged in the connection groove, and a first connection is fixed on the top surface of the cross block. Rod; the present invention is provided with a needle recovery device, which can automatically recover the needle after the injection of the anesthetic drug, and cooperate with the force plate to make the needle pull out from the animal body, and then the anesthesia needle is completely detached and dropped, which can prevent the anesthesia needle from being injected After waiting for the anesthesia to take effect, the animal’s violent movement causes the needle to break and stay in the body, which will cause damage to the animal. Secondly, it can also ensure that there is no air in the needle tube and needle, so as to avoid air injection into the animal’s body and cause its death.

The invention relates to a drying system for paper production and a drying method thereof, comprising a drying cylinder for wet paper sheets to pass through, at least two air hoods arranged on the periphery of the drying cylinder, heating devices corresponding to each air hood, and connecting each The air supply system between the heating device and each gas hood is characterized in that it includes a waste heat recovery system for recovering the hot air in each gas hood and returning it to the heating device; the beneficial effect of the present invention is that the hot air can be The waste heat is recovered to ensure the utilization rate of resources. Not only that, the use of the air supply system can further improve the drying effect and drying efficiency of wet paper sheets.

The invention discloses a method for preparing a three-dimensional hydrophobic tubular nanofiber membrane, comprising: uniformly dissolving a hydrophobic polymer in a mixed solvent to form a first casting solution; using the solution of hydrophobic nanoparticles as a second casting solution; The first and second casting solutions are respectively placed in the first and second spinning injectors, and under certain conditions, the nanofibers are collected on a receiver equipped with a tubular support material, and the tubular braided tube is removed after spinning , after the solvent is volatilized, the nanofiber film is prepared; wherein, the first and second spinning injectors are respectively located on the upper front and upper rear of the receiver, and in a plane passing through the center of the receiver width and perpendicular to the axis of the receiver . The membrane prepared by the method has high porosity, high mechanical strength, good thermal stability, good lipophilicity and hydrophobicity, the long-term separation efficiency is still greater than 95%, and has excellent separation stability and reusability.

The invention discloses a stretchable type ventilating top cover which comprises a top cover (1) of a motor caravan, wherein an air inlet (2) is formed in the top of the top cover (1); the stretchable type ventilating top cover further comprises a cylinder (3), a filtering net (4) and a fixing block (5); the fixing block (5) and the cylinder (3) are arranged on the two sides of the air inlet (2); a groove (6) parallel to the top cover (1) is formed inn a side wall of the fixing block (5); the groove (6) and the cylinder (3) are oppositely arranged; a spring (7) is arranged at the bottom of the groove (6); the filtering net (4) is parallel to the top cover (1); one end of the filtering net (4) is arranged on the spring (7) while the other end is arranged on the cylinder (3); the length of the filtering net (4) is greater than the length of the air inlet. The stretchable type ventilating top cover has the beneficial effects that the characteristics of simple structure, capability of effectively preventing sundries, such as, outside tree leaves and branches, from entering into the main body of the motor caravan, and excellent ventilation are achieved.

The invention discloses a ventilation and ventilation device for a factory building, comprising a central dust collector, a thermal insulation gas collection pipe, an air outlet pipe and a combustion furnace. The dust outlet is connected with the feed inlet of the combustion furnace; the gas outlet pipe is located in the heating zone of the combustion furnace, and the gas outlet pipe is connected to the drying and heating chamber in the workshop; the beneficial effect of the invention is: The dust is collected, and then the tea dust is burned through the combustion furnace, so that the heat of the combustion of the tea dust is used to heat the air outlet pipe, and then the heated air is discharged into the drying and heating chamber for heating and drying the tea leaves, which not only ensures the The air in the workshop also burns and reuses the tea dust, which improves the use efficiency of the tea dust.