58results about How to "Reduce barrier" patented technology

The invention relates to an adaptive heart valve prosthesis, which includes a stent and an artificial valve. Fixedly connected to the valve sewing section, the valve sewing section is at least partly located between the patient's own valve leaflets, and on a cross section perpendicular to the central axis of the artificial valve, the transverse direction of the valve sewing section The cross-sectional area is smaller than the cross-sectional area of ​​the patient's own valve annulus, so that the valve sewing section will not directly radially expand the patient's own valve annulus. In a free state, the cross-sectional area of ​​the leak-proof ring Greater than the cross-sectional area of ​​the patient's native valve annulus, the leak-proof ring is capable of conforming to the non-uniform contours of the atrial chamber wall or the patient's native valve annulus.

The invention discloses an environmentally-friendly wood-plastic integrated wallboard and a production method thereof, belonging to the field of environmentally-friendly high-molecular materials. According to the invention, polyvinyl chloride resin and polychlorohexene resin are used as substrates; wood powder and calcium carbonate powder are used as fillers; polyethylene wax is used as a lubricant; stearic acid is used as a stabilizer; chlorinated polyethylene 135A is used as a toughness and impact modifier; foaming AC-02 is used as a foaming regulator; and macroporous resin, micron-sized carbon spheres and zeolite particles are compounded to form an adsorption purifying agent, so adsorption and desorption discharge channels for harmful gases are formed inside the integrated wallboard. According to the invention, zeolite particles, macroporous resin and micron-sized carbon spheres are added into the integrated wallboard to form the adsorption purifying agent, so the adsorption and desorption channels are formed inside the integrated wallboard; and thus, the internal structure of the wallboard is more abundant, the combination of macro-holes, small holes and micropores makes the porosity of the formed adsorbent larger, the channels for desorption and discharge of harmful gases from the integrated wallboard are increased, and the adsorption and discharge of harmful gases are more thorough and environment-friendlier.

The invention discloses a waste heat recovery efficient energy-saving stove system. The waste heat recovery efficient energy-saving stove system comprises a stove body. The stove body comprises a support, a combustion chamber, an ignition assembly and a smoke heat exchange assembly. The combustion chamber is mounted on the support in an embedded mode. The ignition assembly is mounted at the bottom of the combustion chamber. The combustion chamber is provided with an air inlet. The air inlet is matched with the ignition assembly and is used for providing oxygenating air for the ignition assembly. Vent holes are formed in the upper end of the combustion chamber and communicate with the smoke heat exchange assembly. The smoke heat exchange assembly comprises a smoke channel and heat conduction pipes, wherein the smoke channel and the heat conduction pipes communicate with the combustion chamber. The smoke channel 51 is arranged longitudinally and transfers heat to the heat conduction pipes. The heat conduction pipe is provided with a longitudinal heat conduction cavity matched with the smoke channel formed longitudinally. A heat conduction medium is introduced from the upper end of the heat conduction cavity and is led out of the lower end of the heat conduction cavity after being heated through the smoke channel from top to bottom. The combustion chamber is provided with a supporting port. The supporting port is used for supporting a cooker or a cover body and sealed with the cooker or the cover body. According to the waste heat recovery efficient energy-saving stove system, the efficient energy-saving stove system is capable of collecting heat energy of the combustion chamber, fully utilizing the heat energy produced by combustion in the combustion chamber and recovering smoke heat.

The invention relates to a method and device for conducting and recycling subterranean heat with production casings. The method comprises the following steps: previously selecting a discarded or idle or in-use well, respectively sealing the perforated pores at the well bottom and oil water layer by utilizing separators, closely connecting a heat radiator with the well mouth, vacuumizing the interior, and pressing a given amount of low boiling point medium or water to form a heat transfer unit for recycling subterranean heat with low-cost long-distance gravity assisted heat pipes. The low boiling point medium or water in the heat transfer unit vaporizes after absorbing subterranean heat, the vapor from latent heat of vaporization is continuously transferred to the heat radiator on the upper part, and the heat of the vapor from latent heat is transferred to a natural low-temperature liquid or temperature difference power generation module in the heat-storage energy-accumulation tank through the wall of the heat radiator, thereby recycling heat. The invention is used for solving the problems of high investment and difficulty in large-scale application in the application of subterranean heat, and greatly reduces the cost for utilizing subterranean heat.

The invention discloses a liquid-cooled pure electric vehicle lithium battery heat management device, including a battery box, a battery box cover, a first heat pipe, a second heat pipe and a phase change material; the first heat pipe is evenly distributed in the battery box inside the body, and is fixedly connected with the bottom end of the battery case; the battery accommodation cavity is formed in the first heat conduction tube, and the first cooling channel is formed in the tube wall of the first heat conduction tube; the second heat conduction tube is arranged outside the first heat conduction tube, and is connected with the A second cooling channel is formed between the battery boxes; the second heat pipe is filled with phase change material. The present invention directly arranges the first cooling channel on the outside of the battery, and fills the phase change material outside the first cooling channel. On the one hand, it can first dissipate heat through the cooling liquid, and then transfer the heat to the phase change material, so that the device can quickly cool down. On the other hand, when the battery temperature is too high and the liquid cooling is turned on, the barrier between the battery and the cooling liquid can be reduced, the heat dissipation efficiency can be further improved, and the energy consumption can be reduced.

The invention discloses a metal-organic frame corrosion inhibitor hydrogel composite material and application thereof. According to the metal-organic frame corrosion inhibitor hydrogel composite material, europium-ion functional gallium-based metal-organic frame material Eu<3+>@MIL-124(Ga) loads a corrosion inhibitor and is packaged by a temperature-sensitive type hydrogel to form a reusable corrosion inhibitor hydrogel composite. According to the corrosion inhibitor hydrogel composite, the corrosion inhibitor is released through the window opening effect for targeted repair of corrosion sites, after the corrosion inhibitor film formation protaction, the temperature-sensitive type hydrogel can be easily peeled through phase separation, MOF and temperature-sensitive hydrogel are recovered,the role of "flaw-detection-type band-aid" for the corrosion of offshore engineering steel structures is played, the use of the corrosion inhibitor hydrogel composite can realize the quantitative detection, the alert response and the protection and repair function integration of marine corrosion, and significant application value and broad market prospects are achieved.

The invention relates to an efficient wall plate cooler. The efficient wall plate cooler comprises a lower flange, coil pipes, a square barrel body, an upper flange, middle supporting plates, heat conduction cement gum and U-shaped hooks. The efficient wall plate cooler is characterized in that the square barrel body is connected with the upper flange and the lower flange to form a body structure;the plurality of middle supporting plates are arranged, and uniformly arranged in the square barrel body along the long edge of the square barrel body; the closely attached coil pipes are correspondingly arranged on the four wall plates on the outer side of the square barrel body; and the coil pipes and the wall plates of the square barrel body are fixed through the U-shaped hooks and then are sealed with the heat conduction cement gum. The efficient wall plate cooler has the beneficial effects that the outer wall coil pipes and the middle supporting plates are adopted to perform heat exchanging with high temperature solid materials at the same time, the heat conduction cement gum is arranged outside the coil pipes so that air obstruction can be reduced, and a heat transfer effect is enhanced; and the middle supporting plates are used for separating the solid materials, material heaping is prevented, good heat transfer can also be achieved, the purpose of efficient heat exchanging isachieved, the maintaining and service frequency and time are lowered, and the requirement of normal production can be met.