38results about How to "Increase perfusion rate" patented technology

The invention discloses a large-flow-state cement-based grouting material for a semi-flexible pavement and a preparation method of the large-flow-state cement-based grouting material. The large-flow-state cement-based grouting material comprises the components in parts by weight: 35-60 parts of quick-hardening sulfoaluminate cement, 15-40 parts of modified microbeads, 10-30 parts of fine aggregate, 0.01-0.3 part of an early strength agent, 0.1-0.5 part of a water reducing agent, 0.05-0.2 part of a water-retaining agent, 0.001-0.1 part of a defoaming agent, 4-5.5 parts of an expanding agent and 20-35 parts of water. Through cooperative matching of the components, on the basis of relatively high hour strength, the performance improvement of high fluidity, high flow velocity and high pouring rate is realized, and the concrete has the advantages of short construction period, no need of vibration, convenience in construction, high cost performance and the like, and meets the requirement of rapid traffic opening in road engineering.

The invention provides a kettlebell, a kettlebell shell and a kettlebell manufacturing method. The kettlebell includes a shell and a counterweight filled in the shell, an opening is provided at the bottom of the shell, and a Sealed cover, the counterweight is divided into liquid counterweight and solid counterweight respectively poured into the shell through the opening, the solid counterweight and liquid counterweight are mixed and condensed into one body with the inner wall of the shell and the cover . In the present invention, the weights of the kettlebell are divided into liquid weights and solid weights, which are respectively poured into the kettlebell shell through the opening. Now by mixing the two into a viscous fluid reperfusion process, the perfusion speed can be more than doubled. Moreover, the liquid counterweight and the solid counterweight are poured separately, and the mixed solidified body of water and cement that is difficult to clean will not be formed on the outer surface of the kettlebell, which provides convenience for subsequent cleaning and shaping of the kettlebell.

The invention belongs to the technical field of canned fruit processing, and particularly relates to a rapid packaging machine for canned fruits. The rapid packaging machine comprises a base, whereinthe top of the base is fixedly connected with a platform through a group of vertical rods; a discharging cylinder is arranged at the top of the platform, and a discharging pipe communicating with thebottom of the discharging cylinder penetrates through the platform and extends to the bottom of the platform; the bottom of the discharging pipe is fixedly connected with an annular elastic ring, andthe bottom of the elastic ring is fixedly connected with a fixing ring; a first support is arranged on one side of the discharging pipe, a rack penetrates through the first support, and the bottom ofthe rack is fixedly connected with the fixing ring; a supporting unit is arranged between the rack and the discharging pipe; and one side of the first support is rotationally connected with a third gear through a support, the third gear is meshed with the rack, the third rack is driven by a servo motor, and the servo motor is connected with a power supply through a controller. According to the rapid packaging machine, the third gear drives the rack to move downwards, so that the fixing ring slides downwards to stretch the elastic ring and extend into a can body, and liquid splashing is reduced.

The invention discloses a liquid nitrogen fireproof fire extinguishing system, comprising a liquid nitrogen tank car; the liquid nitrogen tank car is connected with a pump, a vertical shaft and a liquid nitrogen conveying main pipe in sequence; the liquid nitrogen conveying main pipe is connected with a liquid nitrogen direct injection pipe for injecting liquid nitrogen into a goaf and a liquid nitrogen gasifying device for gasifying the liquid nitrogen into nitrogen and then injecting the nitrogen into the goaf; the goaf is integrally provided with an exhaust pipe connected with an air return pipeline; the exhaust pipe is provided with a first control valve; the goaf is internally provided with a sensor for monitoring pressure. The invention also discloses a liquid nitrogen fireproof fire extinguishing method. The liquid nitrogen fireproof fire extinguishing system and the method have the beneficial effects that the exhaust pipe is arranged in the goaf, when the pressure in the goaf is larger than a preset value, air in the goaf can be exhausted, so the pressure of the goaf is reduced, the nitrogen filling speed is improved, and inert gas and harmful gas in the goaf are prevented from escaping from cracks in upper edges corners of the goaf into a working area under action of high pressure.

The invention belongs to the technical field of composite molding process, relating to an enhanced permeable medium. The enhanced permeable medium is laid by odd layers of non-woven parallel yarns at a certain angle and is weaved by yarns used for weaving in low weaving density to form a three dimensional fabric with sparse weaving points; vast penetrating gaps or grooves are reserved in the fabric to provide channels for air and resin flow, so that the fabric has better permeably property of resin. The enhanced permeably medium of the invention can effectively increase flow rates of resins, realize sound immersion of fiber fabrics in resins, obviously increase reliability of pouring technique and improve uniformity of products. The products with smooth surfaces are directly obtained whenusing the medium without changing die structure, thus saving time and labor and being economical and efficient. The enhanced permeably medium of the invention has strong designability, and permeable media with demand structures are obtained by designing structural parameters such as material quality, yarns and angles, etc. according to the characteristics of the composite.

The invention relates to a negative-pressure infusion method for a cut flower preservation pipe. The method comprises the following steps: using a screen cover to press finger pipes which need to be infused and are provided with crack covers at the bottom of a infusion bucket to prevent the finger pipes from floating on a liquid level after liquid is added; infusing a sufficient amount of infusion liquid into the infusion bucket to immerse the finger pipes so that the infusion liquid can still immerse the finger pipes after all the finger pipes are filled with the infusion liquid; and vacuumizing the finger pipes to extract air remained in the finger pipes so that the infusion liquid is automatically infused into the finger pipes. The infusion device comprises the infusion bucket, a sealing cover, a vacuum pump, a conduit, and the like, wherein the sealing cover is provided with a sealing ring, an air inlet valve and a negative pressure gauge; the infusion bucket is provided with the screen cover; three protrusions are uniformly distributed on the inner wall in the one-half height of the infusion bucket to clamp the screen cover; and the conduit is connected with the vacuum pump and the infusion bucket. The invention aims to provide the finger pipe infusion method with high throughput and high effective infusion rate so as to increase the infusion speed, improve the infusion efficiency, realize the cut flower preservation effect, lessen manpower input and decrease the production cost.

The invention discloses an adjustable glue filling pump, which comprises a glue inlet, a first sealing steel ball, a first steel ball top block, a second sealing steel ball, a second steel ball top block, a glue outlet, a glue channel, a vacuum chamber, and an isolation film sheet, mounting bracket, adjustable cylinder, corrosion-resistant needle tube, sealed piston rod, bottom plate, partition, first glue filling mechanism and second glue filling mechanism, the upper surface of the bottom plate is provided with a partition, and the partition A first glue filling mechanism and a second glue filling mechanism are respectively fixed on the surfaces of both sides, and a glue channel is provided on the first glue filling mechanism and the second glue filling mechanism, and a glue inlet and a glue inlet are arranged at one end of the glue channel. outlet, the glue inlet communicates with the glue bucket, and the glue outlet communicates with the glue receiving device. The invention has the advantages of using an adjustable pneumatic needle tube glue filling pump for glue filling, which can realize the adjustment of the filling volume, fast and accurate filling, and the filling channel is not easy to be blocked, and the equipment maintenance is simple.

The invention relates to a color paste switching device of a micro-scale polyurethane elastomer pouring machine. The color paste switching device comprises an upper-layer pouring machine for pouring an upper layer of a top lift of a heel, and a lower-layer pouring machine for pouring a lower layer of the top lift of the heel, wherein each of the upper-layer pouring machine and the lower-layer pouring machine comprises a rack, a pressure circulating feeding mechanism, a color paste switching device, a mixed pouring device, a washing mechanism, a PLC (Programmable Logic Controller) system and a three-dimensional numerical control worktable; and the color paste switching device comprises a color paste output switching device and a color paste reflowing switching device, so that color pastes with different colors can be rapidly and accurately conveyed and recycled, the pouring speed is increased, the labor and the mixing time are saved and the pouring is accurate; and the top lifts of the heel, which have different levels or different colors and have adaptive strength and wear resistance, can be manufactured.

The embodiment of the invention provides a special-shaped column assembly and a beam column connecting joint structure. The special-shaped column assembly comprises a special-shaped column and separating plates of a preset number, and the special-shaped column comprises at least one lateral plate. All the lateral plates enclose to form at least one cavity, or at least one lateral plate integrallyforms at least one cavity. A part of cavities is internally provided with at least one separating plate, and projected areas of the separating plates along lengths of the cavities are smaller than base areas of the cavities. The fact that the projected areas of the separating plates of the special-shaped column assembly along the lengths of the cavities are smaller than base areas of the cavitiesindicates that at least one marginal area existing in the separating plates is in a separating condition with one corresponding lateral plate or a part of thecorresponding lateral plate, and the marginal area and the corresponding lateral plate or the part of the corresponding lateral plate have intervals of certain distance and do not need to be connected in a weld mode, so that lengths of welding lines between the separating plates and the lateral plates which enclose to form the cavities are shortened, and welding workloads are reduced; and margins which are not connected with the lateral plates of the separating plates and the inner walls of the lateral plates enclose to form through holes used for pouring concrete, therefore, the separating plates do not need to be provided with pouring holes, and the own structural intensity of the separating plates is ensured.

The invention relates to a vertical mold for iron alloy pouring and cooling. It includes a support frame, a mould, an opening and closing device, and a cooling device. The mold includes a backing mold and side plates. Limiting protrusions are provided on the front and rear side walls or / and the inner side wall of the bottom plate. There are two side plates, which are located on the left and right sides of the support form, and can be separated or combined with the support form. When the side plates When combined with the support form, the support form and the side plates can form a container with an opening only on the top and a cavity in the middle. The support form is set on the support frame, and the side plates are connected to the support frame through the opening and closing device , and the opening and closing device controls the opening and closing of the side panels. It has the advantages of small footprint, labor saving, high automation level, high safety factor, fast cooling speed, high quality of finished products, and the product is not easy to segregate.

The invention relates to a blade root end pouring device for a wind mill, which comprises a root end structural laying layer, an air pervious isolating film and a vacuum pumping mechanism, wherein a guide net is arranged at the front end of the root end structural laying layer and a resin draft tube is arranged at the upper part at the upper front end of the guide net. The air pervious isolating film is covered on the guide net and between the outlet of the resin draft tube and the front side adjacent to the root end structural laying layer; and the root end structural laying layer, the guide net, the resin draft tube and the air pervious isolating film are arranged in the vacuum pumping mechanism. The device has the advantages that because the auxiliary air extracting mode of the air pervious film is added to a guide layer, residual air bubbles clamped in resin are eliminated so that the compactness of the products is improved, the resin is poured more completely, and the product quality is improved. Moreover, because an integral structural plane is exhausted, the pouring speed and the quality stability can be effectively improved.

The invention discloses a non-ballast track structure, which aims to effectively strengthen the integrity and the anti-vibration performance of a non-ballast track and reduce the maintenance and repair workload of a track structure. The non-ballast track structure comprises a track plate (10) adopting a prestressed reinforced concrete structure, a base (30) adopting a reinforced concrete structure, and a mortar adjustment layer positioned between the track plate (10) and the base (30), wherein the mortar adjustment layer is a resin mortar layer (20), and the resin mortar layer (20) is adheredto the track plate (10) and the base (30) to form an integral structure. The non-ballast track structure has the advantages that the resin mortar layer has good elasticity and adhesive property and canfirmly connect the track plate and the base into a whole, thereby improving the integrity and the anti-vibration performance of the non-ballast track structure; and the non-ballast track structure ca n effectively accelerate the pouring rate of the mortar adjustment layer and ensure the construction quality, so the non-ballast track structure has the characteristic of convenient site constructionand can realize rapid maintenance.

The invention discloses concrete for a railway switch base filling layer. The concrete is mixed by raw materials including 370 parts of cement, 180 parts of mineral mixtures, 44 parts of expanding agent, 866 parts of river sand, 738 parts of broken stones, 184 parts of water and 7.7 parts of polycarboxylic copolymer according to 1M3 filling quantity standard. When the railway switch base filling layer is poured, a leveling blanket and switch slabs are constructed according to a conventional method at first, a pouring mode by the aid of a pump truck, a transfer hopper and a chute is adopted, and each switch slab is poured at one step. As the concrete has excellent mobility and a self-filling performance, the concrete can pass through an engineering portion with compact reinforcements and the complex structural section, is dense in filling, does not segregate or leak water, and has high homogeneity, engineering quality is guaranteed, durability of a concrete structure is improved, the problem that pouring of vibration operation components is not easy to be applied or cannot be applied is resolved, pouring speed is improved, a construction process of the concrete structure is simplified, construction efficiency and construction quality are improved, and construction period is shortened.

The invention provides a refrigerant pouring method of an air conditioner outdoor unit. The air conditioner outdoor unit comprises a compressor (1) and an outdoor unit heat exchanger (5); and the compressor (1) comprises an air suction cavity and an exhausting cavity. The outdoor unit further comprises an air suction cavity and / or an exhausting cavity communicating with the compressor (1) through a communicating pipeline and / or a large valve (3) and a small valve (6) of the outdoor unit heat exchanger (5); and the large valve (3) is used for pouring refrigerants into the exhausting cavity and / or the air suction cavity of the compressor (1). By means of an air conditioner system, the pouring speed of the refrigerants ( especially R32) of the air conditioner system can be effectively increased, and therefore the running and producing efficiency of the air conditioner system is improved; and the pouring precision of the refrigerants (especially R32) of the air conditioner system can also be effectively improved, the pouring precision is more accurate, and the running and producing efficiency of the air conditioner system is further improved.

The invention provides fabric with a high penetration rate. The fabric comprises +45-degree weft yarns, 90-degree weft yarns, -45-degree weft yarns and 0-degree warp yarns, wherein the +45-degree weft yarns, the 90-degree weft yarns and the -45-degree weft yarns are bound together by means of the 0-degree warp yarns. The invention also provides a preparation method of the fabric with the high penetration rate. The method sequentially comprises the following steps: A. laying the +45-degree weft yarns; B. laying the 90-degree weft yarns; C. laying the -45-degree weft yarns; D. using the 0-degree warp yarns to bind the +45-degree weft yarns, the 90-degree weft yarns and the -45-degree weft yarns which are respectively laid in the step A, the step B and the step C, wherein the lengths of stitch-knitting stitches of the 0-degree warp yarns in the step A and the step C are 2.6-3.0mm. The invention also relates to application of the fabric in preparation of wind turbine blades. The fabric prepared by the method is high in porosity; resin filling channels are yarn clearances and holes of the bound yarns; when being filled with resin, the fabric is high in penetration rate, thus avoiding the problem that the roots of foliums become white; furthermore, the time for filling the roots of the foliums is short, and the filling speed is accelerated by 20% or above.