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45results about How to "Increase distribution area" patented technology

Precast concrete member connected by straight thread and pier head lock anchor grouting sleeve, and method for assembling same

The invention relates to a precast concrete member connected by a straight thread and a pier head lock anchor grouting sleeve, and a method for assembling the precast concrete member, belonging to the technical field of constructional engineering assembly concrete structures. The method of connecting by the straight thread and the pier head lock anchor grouting sleeve is adopted; one end of a reinforcing steel bar is processed into the straight thread (6), and the other end of the reinforcing steel bar is processed into a pier head (5); the inner wall of the end with smaller diameter of a connecting sleeve is processed into a thread (9) which is connected with the reinforcing steel by the straight thread (6) and is used for transmitting force; the inner wall of the end with larger diameter of the connecting sleeve is processed into a thread (16) which is connected with a matched plug ring (10) by an external thread (17); after grouting is carried out through a grouting hole, the original way that the tensile force of the reinforcing steel bar of a prefabricated part connected by grouting is transmitted mainly by bonding is changed by the reinforcing steel bar through lock anchor extrusion and bonding force transmission among the pier head of the reinforcing steel bar, the plug ring, grouting material and the sleeve. The safety and economical efficiency of the connection of the novel precast concrete member are improved.
Owner:CHINA CONSTR ENG DESIGN GROUP +1

Precast concrete members connected by locking and anchoring pier heads and grouting variable diameter sleeve, prefabricated concrete member and manufacturing method of prefabricated concrete member

The invention provides precast concrete members connected by locking and anchoring pier heads and grouting a variable diameter sleeve, a prefabricated concrete member and a manufacturing method of the prefabricated concrete member, belonging to the technical field of prefabricated concrete structures in architectural engineering. A sleeve connection method for transferring forces based on extrusion and bonding is adopted, a pier head (5) and a pier head (6) are processed at the two ends of rebars, one end of a connecting sleeve (7) adopts the sleeve inner diameter smaller than the outer diameter of the rebar pier head (6) at the corresponding end, a plugging ring (10) with an inner diameter smaller than the outer diameter of the rebar pier head (5) at the corresponding end is adopted at the other end of the connecting sleeve, and the rebars transfer forces by utilizing locking and anchoring extrusion and bonding among the pier heads, the plugging ring, the grouting materials and the sleeve through sleeve grouting, thus changing the previous mode that the pull of the rebars of the precast concrete members connected through grouting is mainly transferred through bonding. The safety and economy of connection of the novel precast concrete members are improved to some extent.
Owner:CHINA CONSTR ENG DESIGN GROUP +1

Prefabricated concrete member, assembled concrete member and fabricating method through straight thread and nut locking anchor grouting sleeve connection

The invention discloses a prefabricated concrete member, an assembled concrete member and a fabricating method through straight thread and nut locking anchor grouting sleeve connection and belongs to the technical field of assembled concrete structures of constructional engineering. A method of straight thread and nut locking anchor grouting sleeve connection is applied, one end of a reinforcing steel bar is machined to form a straight thread (6), a nut (5) is connected with the other end of the reinforcing steel bar, the inner wall of a small-diameter end of a connecting sleeve is machined to form a screw thread (9) so as to be connected with the reinforcing steel bar through the straight thread (6) to transmit force, the inner wall of a large-diameter end of the connecting sleeve is machined to form a screw thread (16) so as to be connected with a matched blocking ring (10) through an external thread (17), after grouting through a grouting hole (8), the pulling force of the reinforcing steel bar is transmitted through locking anchor extruding and cementation among the reinforcing steel bar nut, the blocking ring, a grouting material and the sleeve, and traditional methods that pulling forces of reinforcing steel bars of prefabricated members through grouting connection are mainly transmitted through cementation are changed. According to the prefabricated concrete member, the assembled concrete member and the fabricating method through straight thread and nut locking anchor grouting sleeve connection, the connection of the novel prefabricated concrete member is improved in terms of safety and economical efficiency.
Owner:CHINA CONSTR ENG DESIGN GROUP +1

Precast concrete component and assembly concrete component connected with pier head locking anchor grouting straight sleeve and production method thereof

The invention provides a precast concrete component and an assembly concrete component connected with a pier head locking anchor grouting straight sleeve and a production method thereof and belongs to the technical field of construction engineering assembly concrete structures. A method of sleeve connection based on extrusion and binding force transfer is adopted and a pier head (5) and a pier head (6) are machined at two ends of steel bars respectively; the sleeve inner diameter of one end of a connecting sleeve (7) is smaller than the outer diameter of the corresponding end of steel bar pier head (6); the inner diameter of the other end of the connecting sleeve is large and the other end of the connecting sleeve is provided with threads; a blocking ring (10) is connected with the connecting sleeve, wherein the inner diameter of the blocking ring (10) is smaller than the outer diameter of the corresponding end of steel bar pier head (5); the locking anchor extrusion and binding force transfer among the steel bar pier heads, the blocking ring, the sleeve and grouting materials is utilized through the steel bars due to the sleeve grouting and accordingly the mode that the steel bar tension of the previous grouting connection precast component is mainly transferred through bonding is changed. According to the production method, the safety and the economy of the connection of the novel precast concrete component are improved.
Owner:CHINA CONSTR ENG DESIGN GROUP +1

Liquid chromatography distributor

The present invention relates to a liquid distributor especially suitable for uniformly distributing a liquid, and concretely relates to a liquid chromatography distributor. The liquid chromatographydistributor is disclosed in order to improve the liquid distribution uniformity of the liquid chromatography distributor. The liquid chromatography distributor includes an upper distribution plate anda lower distribution plate; the upper distribution plate is provided with a central circular groove and a plurality of flow dividing grooves, the central circular groove is located at the center position of the upper distribution plate, the flow dividing grooves extend along the diameter direction of the upper distribution plate, the plurality of flow dividing grooves are sequentially distributedalong the circumferential direction, and one end, close to the center position of the upper distribution plate, of every flow dividing groove is communicated with the central circular groove; and thelower distribution plate is provided with a plurality of liquid distribution holes, and the plurality of liquid distribution holes are sequentially distributed along the circumferential direction, and are communicated with the flow dividing grooves. The liquid chromatography distributor can improve the solution distribution uniformity, reduce the phenomena of channeling, bias flow and wall flow and improve the mass transfer efficiency.
Owner:REDPHARM BEIJING BIOPHARMACEUTICAL INST CO LTD

Anti-interruption feeding system for dry denitration conveying equipment

The invention discloses an anti-interruption feeding system for dry denitration conveying equipment, and relates to the technical field of dry denitration feeding, the anti-interruption feeding system comprises a hopper, a material scattering mechanism for guiding materials in the hopper into a hearth and a guide mechanism for assisting the material scattering mechanism to uniformly swing and scatter the materials, and the material scattering mechanism comprises a first material guide pipe and a second material guide pipe; a hollow spherical block is fixedly connected between the first material guide pipe and the second material guide pipe, a swing rod penetrates through a fan-shaped guide hole in a sliding mode, and the swing rod is limited by the fan-shaped guide hole and can only swing in the fan-shaped guide hole in a reciprocating mode, so that materials guided out of the second material guide pipe are evenly sprayed. Tooth blocks distributed in a fan-shaped structure are arranged on the side walls of the front side and the rear side of the interior of the fan-shaped guide hole, and tooth grooves meshed with the tooth blocks are formed in the outer wall of the swing rod. Materials in the hopper are guided into the hearth through the material scattering mechanism, the material scattering mechanism is assisted by the guide mechanism to evenly swing and scatter the materials, meanwhile, the distribution area of the materials can be enlarged, the chemical reaction efficiency is improved, and the denitration efficiency is improved.
Owner:甘肃泰聚环保科技有限公司

Using method of feeding ship capable of avoiding malignant competition

The invention discloses a using method of a feeding ship capable of avoiding malignant competition, and relates to the technical field of feeding ships. According to the using method of the feeding ship capable of avoiding the malignant competition, a storage bin is arranged on the left side of the feeding ship, a storage cover plate is hinged to the upper side of the storage bin, a fixed box is fixedly connected to the right side of the feeding ship, a motor is fixedly connected to the upper side of the fixed box, and the lower side of the motor penetrates through the fixed box and extends into the fixed box. According to the using method of the feeding ship capable of avoiding the malignant competition, feed enters the interior of the discharging barrel through the feeding plate, the discharging barrel is driven by the motor to rotate at a high speed, the feed is sprayed into water from the lower side of the discharging barrel, and due to the fact that the spraying process is annularly and rotationally sprayed, all fries in a circle can be fed; due to the fact that feeding is driven mechanically, the feeding speed can be slowed down, weak fries have time to eat, and the purpose of reducing the vicious circle of food grabbing among the fries is achieved.
Owner:刘梦

Flexible film platinum resistance sensor and preparation method thereof

The invention relates to the technical field of microelectronic machinery, and particularly discloses a flexible film platinum resistance sensor which comprises a flexible platinum resistance sensor substrate, the flexible platinum resistance sensor substrate comprises a polyimide base material layer, a platinum resistance wire middle layer and a polyimide covering layer, the platinum resistance wire middle layer comprises a platinum resistance wire and a sealant, the two ends of the platinum resistance wire are connected with wires, and the connecting parts of the platinum resistance wire and the wires are located in the platinum resistance wire middle layer. The polyimide base material layer and the polyimide covering layer are made of polyimide films with the thickness of 0.03-0.05 mm; the thickness of the platinum resistance wire middle layer is 0.05-0.08 mm, and the sealant is polyimide glue. According to the flexible film platinum resistance sensor, the platinum resistance sensor substrate is soft, light and thin in texture and can be tightly attached to the surface of a measured object, measurement errors caused by the fact that the sensor cannot be tightly contacted with a complex surface are avoided, and the flexible film platinum resistance sensor is high in test accuracy and good in stability.
Owner:辽宁佳宇电子产品有限公司

A liquid chromatography distributor

The invention relates to a liquid distribution device, especially suitable for uniform distribution of liquid, in particular to a liquid chromatography distributor. In order to improve the liquid distribution uniformity of the liquid chromatography distributor, the invention discloses a liquid chromatography distributor. The liquid chromatography distributor includes an upper distribution plate and a lower distribution plate; the upper distribution plate is provided with a central circular groove and a plurality of split flow grooves, the central circular groove is located at the center of the upper distribution plate, the The distribution grooves extend along the diameter direction of the upper distribution plate and a plurality of the distribution grooves are distributed sequentially along the circumferential direction, and one end of the distribution grooves close to the center of the upper distribution plate communicates with the central circular groove; the lower distribution plate is provided with There are a plurality of liquid distribution holes, and the plurality of liquid distribution holes are sequentially distributed along the circumferential direction and communicated with the distribution groove. The liquid chromatography distributor of the present invention can improve the distribution uniformity of the solution, reduce the generation of channel flow, drift flow and wall flow phenomenon, and improve the mass transfer efficiency.
Owner:REDPHARM BEIJING BIOPHARMACEUTICAL INST CO LTD

Liquid distribution structure with shielding preventing effect and heat exchanger

The invention provides a liquid distribution structure with a shielding avoiding effect and a heat exchanger. The liquid distribution structure comprises a liquid distribution pipe; a heat exchange tube is arranged in the heat exchanger, and the liquid distribution pipe is annularly arranged above the heat exchange tube. According to the liquid distribution structure with the shielding avoiding effect and the heat exchanger, a liquid distribution disc structure in the prior art is replaced with the annular liquid distribution pipe, so that shielding of gaseous refrigerants is reduced under thecondition that the liquid distribution effect the same as that of the liquid distribution disc structure is guaranteed, and the heat exchange performance of the heat exchanger is guaranteed; and meanwhile, spraying holes are formed, the distribution area of the heat exchange tubes can be increased, the problem that a plurality of heat exchange dead zones exist due to the small distribution area of the heat exchange tubes in the prior art is effectively solved, shielding of a liquid distributor to the heat exchange tubes is reduced, limitation of the liquid distributor to the layout of the heat exchange tubes is reduced, the structure of the liquid distributor is simplified, occupied space is small, no liquid distribution dead angle exists, and the space utilization rate of the heat exchanger is improved.
Owner:GREE ELECTRIC APPLIANCES INC

Quasi-vertical Schottky diode with air bridge interconnected with strip-shaped anode

The invention discloses a quasi-vertical Schottky diode with an air bridge interconnected with a strip-shaped anode. The quasi-vertical Schottky diode comprises a semi-insulating substrate, a highly-doped epitaxial layer, a lowly-doped epitaxial layer table top, cathode metal, strip-shaped anode metal, a protective medium, an anode power-up metal flat plate and a metal air bridge; the highly-doped epitaxial layer and the anode power-up metal flat plate are arranged at an interval and are both arranged on the semi-insulating substrate; the lightly-doped epitaxial layer table board and the cathode metal are spaced by a certain distance or are in contact with each other, and are both arranged on the highly-doped epitaxial layer; the strip-shaped anode metal is arranged on the lightly-doped epitaxial layer table surface, and a certain distance is kept between the strip-shaped anode metal and the cathode metal; and the metal air bridge is positioned on the anode metal and the anode power-up metal flat plate and connects the strip-shaped anode metal and the anode power-up metal flat plate. By adopting the strip-shaped anode structure, the series resistance of the Schottky diode is reduced, and the cutoff frequency and the heat dissipation capability are improved.
Owner:NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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