38 results about "Contact order" patented technology

The improved tubular reactor includes one reactant mixing section, one reactant reacting section and one reaction product outputting nozzle. It features the reactant mixing section with one spiral jetting mixer and the reactant reacting section with one spiral mixer. The material contact order and the spiral jetting mixer in the reactant mixing section are regulated properly to control the mixingdegree, contact area and reaction speed to ensure homogeneous mixing of the materials and moderate reaction speed. The spiral mixer in the reactant reacting section mix the gas phase, the liquid phase and the solid phase gradually for homogeneous, smooth, mild and full reaction to form high quality well atomized slurry.

The invention is suitable for the technical field of connectors, and provides an HDMI connector. The HDMI connector comprises a plug and a socket, wherein each of the plug and the socket comprises a housing and multiple pins; the pins in the plug correspond to the pins in the socket; each pin comprises an A attribute pin, a power pin and input / output pins; when the plug is inserted into the socket, the contact order of the plug and the socket is as follows: contact of the socket and the housing of the plug is a first contact order; the contact of the input / output pins in the socket and the input / output pins in the plug is a second contact order; the contact of the A attribute pin in the socket and the A attribute pin in the plug is a third contact order; and the contact of the socket and the power pin in the plug is a fourth contact order. According to the HDMI connector, through changing the contact order of the pins when the plug is inserted into the socket, a failure, caused by surge impact, of the A attribute pins in the third contact order can be avoided by priority contact in the second contact order even if in a function failure of the first contact order.

The invention discloses a method for producing an ethylene cracking material through liquefied gas hydrogenation. The method is characterized in that liquefied gas and hydrogen pass through a hydrogenation reactor through a cocurrent flowing mode, then are contacted with a hydrogenation catalyst under hydrogenation technical condition and subjected to a reaction; the hydrogenation reactor comprises more than two reaction segments, and according to a contact sequence with a reaction material, the activity of the catalyst in a downstream reaction segment is higher than the activity of the catalyst in an upstream reaction segment. The method reduces the relative average reaction speed at an entrance of a catalyst bed layer, changes problem of large relative average reaction speed at the entrance of the catalyst bed layer, a difference of the average reaction speed of each segment of the catalyst bed layer is greatly reduced, and the relative average reaction speed of each segment of the catalyst bed layer is more uniform.

The present invention discloses a method for producing an ethylene cracking material through dry gas hydrogenation. According to the method, olefin-containing dry gas and optional supplemented hydrogen enter a fixed bed hydrogenation reactor in a co-current flow manner, and contact a hydrogenation catalyst under a hydrogenation process condition, a reaction is performed, and the obtained reaction products are separated to obtain the dry gas having the saturated olefin; and the hydrogenation reactor comprises four reaction sections, and according to the sequence of the contact between the material and the catalyst, the law of the hydrogenation activity metal contents in the catalysts in each reaction section is the low content, the high content, the low content and the high content. According to the present invention, with the method, the relatively average reaction rate of the inlet section of the catalyst bed layer is reduced, the problem that the relatively average reaction rate of the inlet section of the catalyst bed layer is high is solved, the difference among the average reaction rates of each section of the bed layer is substantially reduced, and the relatively average reaction rates of each section are uniform; and with the method, the deep oxygen removal can be ensured.

The invention discloses a design method for improving shaft hole connection structure bearing capacity. The design method for improving the shaft hole connection structure bearing capacity comprises the following steps: step (1) a contact stress analysis model and a theoretical calculation method of the shaft hole connection structure are established; step (2) a contact optimization model is established and calculation is designed; step (3) a theoretical solution is compared with a finite element solution error. Traditional shaft hole connection structures do not consider the phenomenon of bigger contact stress existing in shaft hole matching area, so that bearing capacity is not high. The design method for improving the shaft hole connection structure bearing capacity starts from factors influencing the contact stress, increases the number of initial contact points, and optimizes contact surface curvature through changing hole interface curved surface shape and optimizing the curved surface parameters, so that shaft hole contact order extends gradually from two sides to the middle part, contact area is increased, the maximum contact stress is reduced, and bearing capacity is improved. The design method for improving the shaft hole connection structure bearing capacity is unique in method, clearly in thought, feasible in operation, high in universal applicability, and is capable of being popularized and applied in other connection structure designs.

The invention relates to a control method of multi-point contact control controller applied to an electric resistance type contact control panel, the electric resistance type contact control panel is provided, a contact order of a first contact body and a second contact body can be determined according to contact times of the first contact body and the at least one second contact body respectively contacted with the electric resistance type contact control panel, one first contact coordinate and at least one actual coordinate can be determined in order based on the voltage value sensed by theelectric resistance type contact control panel, and the contact body continuously keeps contact with the electric resistance type contact control panel; at least one control instruction can be determined according to the moving track of the actual coordinate.

The invention discloses a method for producing an ethylene cracking feed by hydrogenation of dry gas. The dry gas containing olefins and optional supplemented hydrogen enter a fixed bed hydrogenation reactor in a parallel flow manner and are in contact with hydrogenation catalysts under a process condition of hydrogenation for reacting; an obtained reaction product is separated to obtain olefin-saturated dry gas; two or more reaction sections are arranged in the hydrogenation reactor; according to the contact sequence of the catalysts and materials, the activity of the hydrogenation catalyst in a downstream reaction section is higher than that of the hydrogenation catalyst in an upstream reaction section. According to the method disclosed by the invention, the speed of the hydrogenation reaction of the olefins can be controlled, and the conversion rate of the hydrogenation reaction of the olefins is enabled to be steadily and gradually improved along a catalyst bed layer; reaction heat is gradually and gently released rather than be centrally released, so that reaction temperature rise of the catalyst bed layer is reduced, a temperature bulb of the catalyst bed layer is greatly gentle, and further the service life of the catalysts is prolonged.

The invention discloses a heavy oil hydro-upgrading method using catalyst grading. The method comprises: mixing a heavy oil raw material with hydrogen, passing the mixture through an ebullated bed reactor loaded with solid matters in an up-flow mode, and performing a hydrogenation reaction under a hydrotreating condition. Specifically, the solid matters include two matters of different specifications: stainless steel cages for keeping a fixed bed and particulate ebullated bed catalysts positioned in the space formed by the stainless steel cages. According to the contact order of a hydrocarbon raw material and the catalysts, the hydrogenation activity of the particulate catalysts gradually increases. The method provided in the invention uses the technological characteristics of fixed bed hydrogenation and ebullated bed hydrogenation for reference at the same time, provides greater porosity than the prior art, enhances the dirt-holding capacity of the catalyst bed, and can ensure stable operation of the device, thus being in favor of improving the hydrogenation reaction effects.