30results about How to "Effective extension" patented technology

The invention discloses an underground multi-stage intelligent high pressure gas pulse formation fracturing device and a method thereof, belongs to the technical field of fracturing completion of oil and gas wells, and particularly relates to two technical sachems of the device and the method. The method is used for fracturing the underground layer by the underground multi-stage intelligent high pressure gas pulse formation fracturing device. The device is controlled by each stage of intelligent pressure encoding detonator to gradually detonate by stages at proper time to generate a large amount of high pressure gas according to the set working mode, the dynamic high pressure pulse pressure is formed in the well or holes of a formation, the formation is fractured to form a plurality of cracks, and the permeability of fluid in the formation is increased, so the oil and gas are easily produced. The device and the method have the advantages that the cyclic multiple pressure pulses which are controlled at proper pressure can be generated, so the formation can generate the compression-expansion-compression alternating 'resonance', the cracks are promoted to effectively extend, and a new fracturing network is formed, so the permeability of the formation is improved; the pollution to the formation and environment in the fracturing process is avoided; the method is suitable for the water-sensitive and acid-sensitive formation; the construction cycle is short, the cost is low, the equipment is simple and convenient, and the limitation by terrain and water sources is avoided.

The invention discloses a method for realizing effective sealing of the end part of a hydraulic crack. The method includes the steps that mixed-particle-size ultra-low-density proppant and soluble fiber are mixed and injected into the end part of the crack; the apparent density of the proppant is 1.05-1.25g/cm<3>; the mixed-particle-size proppant of 140-230 meshes and 70-140 meshes is used; the fiber length is 1-2 cm; and the mass ratio of the fiber to the proppant is (1 to 10) to (1 to 20). The length of the paving front edge of the proppant is equal to that of the crack generation, and the length of the proppant is 10-15m from the crack end to the near-well direction, the crack generation width is greater than or equal to the support width, and the error of the support crack width and the crack generation length on the corresponding length is within 10%. The method improves the effectiveness of the sealing of the end part of the hydraulic crack so that the crack after temporarily sealed can be effectively turned and extended to the far-well region, the complexity and the reformed volume and the complexity within the full length of a main crack are improved to solve the limitationof the current technology, and the reservoir yield-increasing effect is maximized.

The invention relates to a compound adsorbent based on hippophae rhamnoides linn branches and trunks. The compound adsorbent is produced by the following steps: preparing hippophae rhamnoides linn charcoal by the hippophae rhamnoides linn branches and trunks, and loading nano Fe3O4 grains. The invention further provides a preparation method of the compound adsorbent. The national resource quantity of the hippophae rhamnoides linn branches and trunks is great; and the compound adsorbent is prepared by taking waste biological resources of the hippophae rhamnoides linn branches and trunks as raw materials so that the industrial chain of utilizing the hippophae rhamnoides linn branches and trunks is effectively lengthened. The obtained compound adsorbent can be used for treating doxycycline organic pollutant wastewater and can be regenerated.

The invention relates to the field of disposable hygienic products, in particular to an elastic waistline manufacturing device which comprises a rack, and an elastic film unwinding mechanism, a low-speed driving roller, a high-speed driving roller, a composite station, a fastening device, a middle driving roller, a cutting device, a tension buffering mechanism and an output driving roller which are arranged on the rack according to an assembly line. An upper non-woven fabric conveying mechanism and a lower non-woven fabric conveying mechanism are arranged on the portion, located at a composite station, of the rack, a plurality of welding point positions are arranged on the fastening device, a partition line is formed by the welding point positions, the included angle between the projection of the partition line on the horizontal plane and the advancing direction of the assembly line is 25-35 degrees, and the cutting device is provided with a plurality of cutting parts used for forming cutting units on sheets. The technical problem that an elastic waistline manufacturing device which can achieve good breathability and is comfortable to wear does not exist in the field of existing disposable hygienic products is solved.

The invention relates to the field of multi-frame mill installation, in particular to a tandem mill board and a base adjusting method thereof. The method is characterized by comprising the following steps: (1) equal height blocks are prepared; (2) the equal height blocks are erected; (3) the longitudinal centers of mill bases are aligned by using the equal height blocks; (4) inlet and outlet basesof the mill bases are horizontally aligned by using the equal height blocks; (5) the adjacent mill bases are horizontally aligned by using the equal height blocks; (6) the parallelism of the outlet bases of adjacent mills is aligned by using the equal height blocks; and (7) the frame parallelism of the adjacent mills is adjusted by using the equal height blocks. Compared with a traditional tandemmill board and a base adjusting method thereof, the adjusting method uses the equal height blocks for auxiliary measurement, so that a mounting reference surface can effectively extend precisely, andthe equipment mounting progress is accelerated when the detecting precision is improved.

The invention relates to a test method for rapidly evaluating leveling and sagging properties of a water-based polymer material by using a rotational rheometer. Specifically, the method can be used for quickly, directly and efficiently testing and evaluating the leveling and sagging properties of the water-based polymer material by adopting the rotational rheometer.

The invention relates to an electric hoist test power-enhanced weight system and a using method thereof. The electric hoist test power-enhanced weight system comprises a pit with an anchoring device arranged at the bottom, and the top of the anchoring device extends out of a ground anchor lifting hook; the bottom of a power enhancing device is provided with a lower lifting hook connected with theground anchor lifting hook, the top of the power enhancing device extends out of an upper lifting hook, the side edge extends out of a weight lifting hook, and the weight lifting hook is hung with a weight assembly; a steel wire rope in connection with the weight lifting hook sequentially penetrates through a plurality of pulleys to achieve power enhancement; during hoisting, the anchoring device,the power enhancing device and the weight assembly are all contained in the pit, the upper lifting hook is hooked and protruded out of the ground by the electric hoist lifting hook and moves along atest bed together with the electric hoist lifting hook, the ground anchor lifting hook is pulled up to move along the anchoring device by the lower lifting hook, and the weight assembly is pulled up to move synchronously by the weight lifting hook. According to the electric hoist test power-enhanced weight system and the using method thereof in the invention, the load of the weight during the testof the electric hoist is reduced, the operational test of the electric hoist is effectively realized, the weight type is simplified, the weight assembly is convenient and fast to assemble and disassemble, and the test speed and efficiency are greatly improved.

The invention relates to the field of protective films, and discloses a compression-resistant protective film and a rolled film storage mechanism. The compression-resistant protective film comprises an upper buffer layer, an upper elastic net, a lower elastic net, a lower buffer layer, a microsphere layer and an airbag layer, wherein the upper buffer layer is provided with a plurality of upper grooves; the upper elastic net is connected to one side surface of the upper buffer layer, and a plurality of upper net holes are formed in the upper elastic net; the lower elastic net is connected to the side face, away from the upper buffer layer, of the upper elastic net, and a plurality of lower net holes are formed in the lower elastic net; the lower buffer layer is connected to one side surface, far away from the upper elastic net, of the lower elastic net, and a plurality of lower grooves are formed in the lower buffer layer; the microsphere layer is contained between the upper buffer layer and the lower buffer layer, the microsphere layer comprises a plurality of porous microspheres, the upper grooves, the upper net holes, the lower net holes and the lower grooves jointly form a containing cavity, and the porous microspheres are contained in the containing cavity; and the airbag layer is connected to one side surface, far away from the lower elastic net, of the lower buffer layer.The compression-resistant protective film has the advantages of extrusion resistance, stamping resistance, favorable ductility and no residual adhesive after stripping.

The invention discloses a medicine applying device for the thoracic surgery department. The medicine applying device structurally comprises a handle, a baffle, a medicine cylinder, a medicine applying pipe, an inflation bag and a spray head, wherein the handle is fixedly connected to one end of the medicine cylinder through the baffle, and the other end of the medicine cylinder is connected with the medicine applying pipe in a sleeving mode; the medicine applying pipe is welded to the top of the inflation bag; the spray head is installed at the bottom of the inflation bag; a clamping part and an opening structure are arranged in an adjusting device; the opening structure and a fixed sleeve are matched on the two sides of the clamping part; and when medicine liquid is sprayed to the stacking position in the esophagus, the stacking position is clamped at the bottom of the adjusting device, the opening structure is inserted into the stacking position, the clamping part is stressed to drive the opening structure to twist and expand towards the two sides, wrinkles of the affected part can be effectively opened, medicine applying dead corners are avoided, and saturated spraying is carried out in cooperation with a medicine spraying cavity.

The invention discloses a wheel hub positioning device for automobile detection, which structurally comprises a fixed seat, an adjusting piece, a stop block, a platform, a limiting device, a lifting frame and a hydraulic rod. When the wheel hub positioning device is used, an operator moves an automobile onto the platform, and front and rear wheels of the automobile are respectively arranged on a corner disc and a rear wheel tray; the two extension clamping pieces abut against the two sides of the wheel, then the butt joint limiting piece extends into the wheel, the extension clamping pieces can be assisted to limit the wheel, the wheel and the corner disc can rotate at the same amplitude under the action of the extension clamping pieces, and the corner disc conducts positioning debugging on the wheel through the corner disc.

The invention particularly discloses an air deflector structure and an air conditioner using the same. The air deflector structure comprises a second air deflector and a first air deflector, the firstair deflector and the second air deflector are arranged at a first air outlet in the tail end of a bottom shell in an overlapping and intersecting mode, the rotating center point of the second air deflector is arranged on the upper side of the first air outlet, the rotating center point of the first air deflector is arranged on the lower side of the first air outlet, the first air deflector and the second air deflector rotate towards the outer side of the first air outlet to be opened to form a second air outlet, the plate length H2 of the second air deflector is larger than or equal to the distance h2 from the rotating center point of the second air deflector to the exterior of the air conditioner, and the plate length H1 of the first air deflector is larger than or equal to the distanceh1 from the rotating center point of the first air deflector to the exterior of the air conditioner. The second air deflector forms an effective extending air duct of the first air outlet and plays arole in diffusion and resistance reduction, so that the air volume of the air conditioner is increased, noise and power consumption are reduced, hot air flow can be effectively pressed downwards, andthe carpet type heating effect is achieved.

The invention discloses a combined forging die. The combined forging die structurally comprises a lower die body, an upper die body, protection springs, an extrusion plate, positioning devices and a base. During use of the combined forging die, an adjusted chuck is blocked through cooperation of friction plates and auxiliary friction plates, so that a supporting rod can be adjusted to be in a certain balance state, the supporting rod can stably support the lower die body and the upper die body, and a die core between the upper die body and the lower die body is prevented from rotating; and then the lower die body and the upper die body are pushed and pressed through cooperation of adsorption pieces and protection pieces, so that the lower die body and the upper die body can be buckled together in parallel, it is guaranteed that convex and concave positions in the lower die body and the upper die body can be matched and correspond with each other, it is guaranteed that a blank of the die cannot be dislocated in the forming process, and the forming quality and forming efficiency of parts are improved.