5509 results about "Pressure resistance" patented technology

The virtual intelligence shoe with a podiatric analysis system provided with a portable pair of shoe-like body types thereof, into two of which a miniature electronic module and an enclosed sensor mat are permanently embedded in the shoe-like with a mechanical air package enclosing the electronic module to serve as a shock absorption. A miniature electronic module comprises a transmitting circuit with pressure resistance, shoe temperature and warning buzzer for full memory capacity, which receives the variable pressure and temperature voltage signals, convert them into resistance (ohm) and Celsius, respectively. The electrical signals can be emitted in an infrared light signal. An enclosed sensor mat constitutes a thin, flexible, planar, resilient, and dielectric material that arrays seventy-four positions at strategic geometrical pattern to produce the precision of collecting data exerted by a foot or feet continuously and instantaneously in static and dynamic event during the full weight bearing in various activities. The conjunction of a pair of shoe-like body types, a digital foot scanner, a portable infrared light-receiving unit and a central integrator (servers) form a podiatric analysis system for enabling accurate information. An obtained information of each individual can be stored and analyzed for diagnostic means with respect to the foot or feet maladies. The virtual intelligence shoe with a podiatric analysis system is an unconventional, which can ultimately be used by anyone and capable to produce consistent foot or feet information to implement the changes in the foot or feet biomechanics by altering the shoes, orthoses or other modes. In a preferred form, a pair of shoe-like body types is virtually applied to any type of foot or feet maladies and worn daily as if they were conventional shoes under various terrain conditions.

There is provided a backside protective sheet for a solar battery module that is excellent in strength as well as in various properties such as weathering resistance, heat resistance, water resistance, light resistance, wind pressure resistance, hailstorm resistance, chemical resistance, moisture resistance, antifouling properties, light reflectivity, light diffusivity, and design, and is particularly excellent in the so-called “moisture resistance,” which is the ability to prevent the entry of moisture, oxygen and the like, and durability against performance degradation with time, particularly against hydrolytic degradation and the like, and is also excellent in protective capability. There is also provided a backside protective sheet for a solar battery module, which can facilitate inventory control by properly using the front side and back side of the protective sheet depending upon applications and is excellent in cost performance, and a solar battery module using the same. The backside protective sheet for a solar battery module comprises: a deposited assembly comprising a vapor-deposited film of an inorganic oxide provided on at least one side of a substrate; and a transparent or translucent heat-resistant polyolefin resin layer provided on both sides of the deposited assembly.

When outputs from two vibration detection sensors are measured by a Coriolis flowmeter in a form of phase difference time, a tube must be thinned to increase a sensitivity of the flowmeter to enable measurement and accordingly flow velocity and pressure loss increase, and a thickness of the flowmeter must be reduced and therefore a pressure resistance cannot be readily enhanced. In particular, the sensitivity of signals to flow rate is difficult to increase and, accordingly, a flow rate of a low-density gas cannot be accurately measured. In the present invention, a Coriolis vibration frame 16 carrying a U-shaped tube is swingably fixed to a forced vibration frame 19 fixed to a support base 22 to form a highly rigid frame structure limiting a vibrating direction to one degree of freedom in a Coriolis vibration direction. The forced vibration frame 19 is vibrated by a vibration exciter 20 so that a ratio of a forced vibration frequency to the Coriolis frequency of a pipeline is at least 1 to 10. The ratio of the amplitude of the forced vibration to the amplitude of the Coriolis vibration is calculated based on signals from two vibration sensors such as acceleration sensors 17 and 18 to measure the mass flow rate of a fluid flowing in the pipeline.

A three-dimensional nonwoven fabric with a pore structure includes raised regions, recessed regions, and the pore structure. Fiber densities from the raised regions to the recessed regions are gradient. That is, the fiber density of the edges transiting from the raised regions to the recessed regions is higher than that of the tops of the raised regions. Pressure resistance performance of the high-density fiber regions keeps the three-dimensional nonwoven fabric significantly uneven, and quickens liquid permeation and reduces residues, and the three-dimensional nonwoven fabric has a high permeating speed and is dry and comfortable.

A main object of the invention is to provide a filler sheet for a solar cell module which is excellent in various properties such as strength, endurance, weatherability, heat resistance, water resistance, light resistance, wind pressure resistance, hailstorm resistance, and vacuum laminating suitability, and has very good thermal melting/bonding property without being affected by production conditions and others, and which makes it possible to produce a solar cell module, suitable for various use purposes, stably at low costs; and a solar cell module using the same. In order to attain the object, the invention provides, as a filler sheet for solar cell element, a filler sheet made of a resin film produced by a resin composition comprising a copolymer of an α-olefin and an ethylenic unsaturated silane compound, or a modified or condensed body thereof, and one or more selected from the group consisting of a light resisting agent, an ultraviolet absorbent and a thermal stabilizer; and a filler sheet made of a resin film produced by a resin composition comprising a maleic anhydride modified polyolefin.

A composite lubricating grease contains high-basicity petroleum calcium sulfonate or synthetic calcium sulfonate, acetic acid, C12-C22 hydroxy fatty acid, boric acid, arylamine-type antioxidizing agent and basic lubricating oil. Its advantages are excellent extreme-pressure resistance to friction, water, salt fog and corrosion, high drop point and thermal stability, good viscosity and long service life.

The invention discloses a testing system for critical pressure during thermal explosion of explosives. The testing system comprises a pressure-resistance heating unit, a pressure control unit, a sample loader unit, a decomposed product detection unit and a computer; the pressure-resistance heating unit comprises a single-cavity heating furnace body, wherein a temperature sensor which is connected with the computer is arranged in a furnace cavity, and temperature, temperature rise speed and pressure of the single-cavity heating furnace body are controlled by the computer; the pressure control unit comprises a high-pressure gas cylinder, a pressurizing gas channel pipe, a pressurizing electromagnetic valve, a heat conduction layer extension edge pressurizing pipe, a pressure-releasing gas channel pipe, a pressure-releasing electromagnetic valve, a safety valve gas channel pipe, a safety valve and a pressure sensor; the sample loader unit comprises an L-shaped bracket, a stepping motor, two fixed pulleys, a steel wire rope, a furnace cover, a sample reservoir bracket and a sample reservoir; the decomposed product detection unit comprises an infrared sensor which is arranged in the sample reservoir; and the computer is provided with a data acquisition card, a graphic display control and a data processing unit and can be used for identifying the critical state of thermal decomposition to combustion or explosion and acquiring a critical pressure parameter.

A method and apparatus for transferring the flow of fluid through tubes in the sole of shoes. The apparatus includes a pair of fluid filled tubes along the periphery of the sole of the shoe. One tube is connected to cross tubes that provide flow paths and cushions the for the ball and instep portions of the foot. The other tube is connected to cross tubes that provide flow paths and cushions heel portion of the foot. Adjustable pressure valves interposed between the fluid filled tubes permit a method of controlling the flow of fluid through the valves in one direction only. The pressure resistance of the valves are pre-set for a certain internal pressure level required for triggering the transfer of fluid from one tube to the other. The method include steps of controlling pressure resistance by adjusting valve pressure adjustment rings either in a clockwise direction about a rod for increasing internal pressure resistance, or in a counter-clockwise direction for decreasing internal resistance.

The present invention relates to a heat exchanger for carbon dioxide, in which a tank having a number of domes is coupled with a header and a connection member having a connection flow channel is interposed between the header and the tank, thereby easily changing a refrigerant flow channel, reducing the volume of a header tank, and improving productivity, pressure resistance and durability.

The invention provides an oriented fiber aerogel heat-insulating compound material and a preparation method thereof, belonging to the technical field of functional materials, and heat insulation and energy conservation. The oriented fiber aerogel heat-insulating compound material comprises a fiber skeleton and aerogel, wherein the aerogel is filled in the fiber skeleton; and fibers in the fiber skeleton are tidily arranged in the same direction, and the fiber skeleton is an oriented fiber skeleton. The oriented fiber aerogel heat-insulating compound material has a superhigh heat-insulating performance (the coefficient of heat conductivity is 0.013 W/m.K) and good pressure resistance and fracture resistance, and the heat-insulating performance, the pressure resistance and the fracture resistance are directionally controllable; the oriented fiber aerogel heat-insulating compound material can be widely applied to fields which require heat-insulating and heat-preserving measures; and the preparation method adopts a normal-pressure drying technology and a supercritical drying technology in the conventional aerogel preparing process is not used, so that the preparation cost of the aerogel heat-insulating compound material can be greatly reduced and the aerogel heat-insulating compound material is applicable to industrial production.

The invention relates ton a variable-distribution porous end mechanical sealing structure, comprising a movable ring and a stable ring which are mechanically sealed, to form an annular sealing end. One side of the sealing end is high pressure side as ascending, while another end is low pressure side as descending, at least one sealing end is disposed with porous structure in different sizes symmetry distributed on the sealed end. Compared with present screw or groove mechanical sealing structure, the invention has better pressure resistance, abrasion resistance and better dynamic pressure effect on fluid membrane, to improve the carrier ability of fluid membrane.

The invention discloses a space netted fabric compound material which comprises a PVC (Poly Vinyl Chloride) top film layer, a space netted fabric layer and a PVC bottom film layer from top to bottom, wherein the space netted fabric layer comprises upper and lower netted fabric layers and a drawn wire; the upper and lower netted fabric layers are arranged in parallel; and the drawn wire is vertically arranged between the upper and lower netted fabric layers. A preparation method for the space netted fabric compound material comprises the following steps: 1) coating paste on the space netted fabric layer; 2) preheating; 3) gluing; and 4) cooling, scrapping edge and coiling. According to the space netted fabric compound material provided by the invention, the space netted fabric layer is arranged between the PVC top film layer and the PVC bottom film layer, so that an air cushion product after being aerated has a smooth surface and a beautiful outline after the space netted fabric compound material is applied to the air cushion product; the bearing capability is excellent and the air cushion product is difficult to explode during an aerating process; and the air cushion product is excellent in elasticity and pressure resistance, due to the middle space netted fabric layer.

An elbow fitting is used in a pneumatic product conveying system in which the fitting expands from the inlet pipe along the outer side of the elbow fitting to enable a layer of accumulated product particles to be formed so as to move at a lower velocity than the velocity of the incoming product stream while establishing a moving contact surface for deflecting incoming product particles toward the outlet pipe with a minimum of pressure resistance and product attrition. The accumulated product particles are discharged from the elbow fitting by incorporating a step in the outer surface of the elbow fitting to create a Bernoulli effect causing the accumulated product particles to enter the air flow after the incoming flow of product particles has ceased. The particles in the accumulated layer are replenished from the incoming flow during operation of the elbow fitting.

The invention discloses a closed origin and arrival construction method of a shield machine, comprising the following steps: (1) using a tight continuous wall enclosure structure as a plain concrete continuous wall; (2) opening slanting periphery observation holes on a cavity door to observe the stable and leak conditions of soil bodies; (3) chiseling concrete and steel bars on the cavity door sectionally, and using plain concrete to replace the original continuous wall synchronously; (4) installing a receiving device of the shield machine, and applying pre-applied force; (5) filling materials in a steel sleeve barrel of the receiving device to a request height; (6) testing the pressure resistance of the steel sleeve barrel; (7) carrying out the digging construction of the shield machine until a shield tail of the shield machine enters or separates the cavity door; and (8) decompressing and disassembling the steel sleeve barrel of the receiving device. The closed origin and arrival construction method of the shield machine is safe, economical, efficient and simple, changes uncontrollable factors into controllable factors in a shield origin and arrival process, greatly reduces risks in a construction process, better controls land subsidence and provides the effectively ensured closed origin and arrival construction method of the shield machine.

The invention relates to a spherical formed active carbon and a method for preparing the same. The formed active carbon consists of inorganic binder silica sol and powdered materials of active carbon, attapulgite and bentonite, and the powdered materials comprise the following components in percentage by mass: 30 to 80 percent of the active carbon, 10 to 60 percent of the bentonite and 10 to 60 percent of the attapulgite; and the inorganic binder silica sol accounts for 4 to 15 percent of the total mass of the powdered materials, and the mass concentration of silicon dioxide in the silica sol is between 15 and 50 percent. The spherical formed active carbon is prepared by adopting the inorganic binder, has the advantages of high compressive strength, good pressure resistance and abrasion resistance, and can prevent active carbon chippings and dust from falling off; the inorganic binder dose not have water-solubility any more after solidification and cannot be softened by water so as to still keep higher strength; and the active carbon has the advantages of spherical appearance, smooth surface, good abrasion resistance, high packing density, even particle distribution and pore space, and small fluid flow resistance, and is advantageous for controlling parameters of the fluid thereof, and the like.

A sealed rectangular battery excellent in volumetric efficiency and pressure resistance is provided. The sealed rectangular battery includes an electrode group having a positive electrode and a negative electrode and a cell casing for accommodating therein the electrode group and an electrolyte solution, which casing includes a rectangular frame member, a first lid member and a second lid member. Each of the first and second lid members includes a body portion for covering one of the openings of the frame member, and a side portion formed so as to protrude from the body portion substantially along at least one set of sides opposite to each other.

The invention provides a microcapsule for delaying the release of working fluid additives in oil and gas well and a method for preparing the same, which belongs to oilfield chemical field. The invented microcapsule is formed by 3.5-25 percent of working fluid additive in oil and gas well, 70-94 percent of aluminosilicate beads, 2-5 percent of polymer membrane, wherein the working fluid additive in oil and gas well is one of oil well cement early strength accelerator, gel strength accelerator, retarder or fracturing fluid crosslinking agent, gel breaker, the aluminosilicate beads are waste catalysts with 10-250 um particle size and 0.20-0.60cm3/g pore volume 0.20-0.60cm3/g, the polymer membrane is non water-soluble polymer with 0.02-03 million relative molecular mass. The prepared microcapsules have good effect of delaying release, pressure resistance, temperature resistance, and wide application range. The main raw material of aluminosilicate beads for preparing microcapsules belongs to waste reutilization, which is economical and environment-friendly. Furthermore, the microcapsule preparation technology of the invention is simple and the production cost is low, which is beneficial for industrial production.

The invention relates to an electrostatic spinning method and a nanometer fiber/anti-sticking non-woven fabric composite filter material prepared through the electrostatic spinning method. Multi-needle electrostatic spinning is adopted in the electrostatic spinning method, and needles of multi-needle electrostatic spinning are insulated from one another. The prepared nanometer fiber/anti-sticking non-woven fabric composite filter material is formed by overlapping and compositing materials for overlapping from bottom to top according to the low-to-high sequence of filtering efficiency of a filtering material, the face, with electrostatic spinning fiber, of each layer of material for overlapping faces upwards, the uppermost layer of material for overlapping is covered with anti-sticking non-woven fabric, and therefore it is ensured that the top layer and the bottommost layer are both anti-sticking non-woven fabric layers; of every two adjacent layers of materials for overlapping, the filtering efficiency value for particles with grain size of 0.02 micron to 10 microns of the upper layer is 1.03-1.3 times that of the lower layer, the number of overlapping layers of the materials for overlapping ranges from 2 to 6, the anti-sticking non-woven fabric and the interlayer structure with electret effect nanometer fibers arrayed at intervals are formed, and the nanometer fiber/anti-sticking non-woven fabric composite filter material is formed; the filtering efficiency of the nanometer fiber/anti-sticking non-woven fabric composite filter material for particles with grain size of 0.02 micron to 10 microns reaches 99.999% or higher, and the pressure resistance is kept between 10 Pa and 30 Pa.

It is sought to provide a rear casing arrangement for a magnetic drive pump, which can sufficiently provide such functions pressure resistance and heat resistance, which give rise to problems in the case of manufacturing the rear casing from a material based on a synthetic resin, and can also be manufactured at low cost.

A reinforcing belt-like ring member is woundly fitted on the outer periphery of a cylindrical barrel part of an inner casing member constituting a rear casing. The belt-like ring member has a width smaller than the length of the barrel part. A casing cover member is fitted on the belt-like ring member in the above fitted state. Alternatively, it is possible to fit the belt-like ring member on the outer periphery of a barrel part of the casing cover member. These parts can be disassembled.

The invention provides fused iron catalyst for producing light olefins from syngas and a preparation method and application thereof. The fused iron catalyst includes iron oxide and cocatalyst and the proportion of the components is as follows by weight percent: 0.1-5 alumina, 0.1-6 potassium oxide, 0.1-4.0 calcium oxide and 0.01-8.5 other oxides, and balance iron oxide. The fused iron catalyst has the beneficial effects that (1) the materials of the fused iron catalyst are cheap and easy to get, the preparation process is simple, and the fused iron catalyst is low in cost and is suitable for industrial production; (2) the fused iron catalyst is of high mechanical strength as well as good pressure resistance and abrasion resistance and is suitable for a fixed bed, a fluidized bed and a slurry bed reactor; and (3) the fused iron catalyst has high Fischer-Tropsch synthesis activity and selectivity, the conversion per pass can be more than 95%, the selectivity of the methane is less than 10% and the content of the light olefins can reach 80-90%.