57results about How to "Good energy gathering effect" patented technology

The invention discloses a method for willow artwork dyeing through a natural indigo pigment. The method comprises the following aspects that (1) indigo extraction is conducted, specifically, a plant raw material is subjected to crushing, fermentation, water soluble extraction and low-temperature drying, and the indigo pigment is prepared; (2) acid-alkali steeping is conducted, specifically, a hydrochlric solution with the concentration being 0.3-0.4% and a sodium hydroxide solution with the concentration being 0.25-0.3% are used to steep a willow artwork correspondingly; (3) cooking for impurity removal is conducted, specifically, impurities in the willow artwork is removed through cooking; (4) steaming for dyeing is conducted, specifically, the indigo pigment with the mass being 11-13% that of distillation boiler water is added, and steam dyeing is conducted; (5) low-temperature drying is conducted, specifically, the dyed willow artwork is dried; (6) infrared color fixing is conducted, specifically, the willow artwork is wrapped through mixed slurry and placed under infrared lamplight with the illumination intensity being 470-520 lux for color fixing; (7) ultraviolet inspection is conducted, specifically, the willow artwork subjected to color fixing is placed under an ultraviolet lamp, and the color fixing condition is inspected; and (8) tung oil layer coating is conducted, specifically, the willow artwork qualified after inspection is coated with tung oil, and after drying, the willow artwork with the natural indigo pigment is prepared.

The invention discloses a nested tidal current generating set of an air guide sleeve paddle-changing horizontal shaft, and belongs to the field of ocean regenerative energy development. The generating set is composed of an outer air guide sleeve, an air guide sleeve support, an inner air guide sleeve, a main shaft, a main shaft bearing, a hub, a blade, a paddle-changing bearing, a paddle-changinggear, a paddle-changing rack, a paddle-changing motor, a storage battery, a generator, a gear box and seal; and the outer air guide sleeve and the inner air guide sleeve form the nested air guide sleeve, the roof of the blade realizes the blade paddle-changing through the paddle-changing motor. The nested tidal current generating set provided by the invention has the advantages that the blade neighbouring tide flow velocity is greatly improved through the nested air guide sleeve, a paddle-changing mechanism causes a horizontal shaft to be adapted to reversing current, the efficiency is obvious high, thereby having self-starting ability at different flow rates; a complete machine structure is concise, the electrical energy output is stable, thereby having cleanness and no pollution.

The invention discloses a retractable blade vertical-axis tidal turbine, which comprises a rotating shaft, a turntable, blades, retractable support arms, eight guide rails, guide rail wheels, baffle plates, a controller and a support part, wherein the guide rails are positioned in the turntable, and are divided into two layers, and each layer comprises four guide rails; the guide rails are uniformly welded on the rotating shaft at intervals of 90 degrees; the guide rail wheels are mounted on the inner surfaces of the guide rails; a retractable support arm is mounted in each guide rail; the support arms are retractably and movably connected with the guide rails through the guide rail wheels; the blades are mounted at the ends, far away from the turntable, of the support arms; the blades are rectangular, and are positioned on the same planes as the upper and lower layers of retractable support arms; the baffle plates are fixedly mounted at the ends, far away from the turntable, of the blades, and are in right-angled connection with the blades; the blades slide in the guide rails through the retractable support arms, and are controlled by the controller to retractably move. According to the retractable blade vertical-axis tidal turbine with such a retractable design, the energy yielding efficiency of the vertical-axis turbine is improved, the size of the whole device is reduced, convenience in transportation and considerable market prospect are achieved, and the submarine mounting cost is reduced.

The invention relates to a multi-level tidal current energy water turbine based on the real-time adjustable fairing rotation angle. The multi-level tidal current energy water turbine comprises a fairing, a hub fixedly arranged on a rotation shaft and a basic impeller fixedly arranged on the hub. The multi-level tidal current energy water turbine is characterized by comprising a supporting shaft with the real-time adjustable fairing rotation angle and an energy increasing rotation wheel with changeable radius hyperbolic spiral helix blades, the hyperbolic spiral helix blades are gradually stretched in the axial direction of the rotation shaft according to the spiral line of the hyperbolic spiral, are in a space intersection twisting shape and are evenly distributed on the circumferential inner wall of the rotation shaft, the hyperbolic spiral helix blades are arranged on the periphery of the rotation shaft, X represents the space horizontal axis value of the key point on the hyperbolic spiral helix blade section wing curve, and Y represents the space vertical coordinate value of the key point on the hyperbolic spiral helix blade section wing type curve. The multi-level tidal current energy water turbine is simple in structure and high in efficiency, can be used for ocean tidal current energy power generation and can also be used for power generation under micro tidal current energy conditions such as the mountainous area, the mountain spring and the small reservoir stream.

The invention discloses an inner flame energy-concentrating riser pipe type gas burner, which comprises a big fire burner, a small fire burner, a mixing tube of the big fire burner, a positioning tube of the small fire burner, and a water collector. An inner ring of an annular shell of the big fire burner is an inverted frustum which forms an angle between 20 and 80 DEG with a horizontal plane, and 1 to 5 fire exhaust holes are formed on the inner ring. One end of the mixing tube of the big fire burner is connected with the annular shell and communicated with an inner cavity of the annular shell, while the other end is communicated with a big fire nozzle which is arranged on the lower part of the water collector. The small fire burner comprises a frustum cap shell and an inner cavity of the frustum cap shell, wherein 1 to 5 fire exhaust holes are formed on external side face of the frustum cap shell, and the inner cavity of the frustum cap shell is communicated with a small fire nozzle which is positioned on the lower part of the water collector by a mixing tube of the small fire burner. The inner flame energy-concentrating riser pipe type gas burner has the advantages of reasonable structure, high thermal efficiency, material conservation, convenient processing, excellent energy-saving effect, less exhaust emission and the like.

The invention relates to a diversion cover type elliptical orbit vertical-axis tidal current energy hydraulic turbine generator set, and belongs to the field of utilization of ocean energy. The generator set is characterized by comprising a diversion cover, a guide rail support, an elliptic guide rail, linear bearings, guide arms, straight blades, fixing bolts, a radial bearing, a rotating shaft, a wheel disc, a radial thrust combined bearing, a sealing ring, a supporting frame, an electric brake, a seal box, a gearbox, a generator, a storage battery, a controller, balls, a sliding block, blade bearings and a guide hole. According to the generator set, an energy gathering effect on tidal current energy is improved by the diversion cover, the length of the arm can be changed elliptically through the elliptic guide rail, and the elliptic guide rail can be conveniently arranged on the diversion cover. The generator set has a simple and reliable structure, and the length of the arm is changed in a non-circular mode, so that the capture efficiency of the tidal current energy is improved, and operation reliability and operation stability are improved.

The invention relates to the technical field of atomization equipment, in particular to a humidifier. The humidifier comprises an energy gathering assembly, an atomization assembly and a body, whereinthe energy gathering assembly comprises a first energy gathering component and a second energy gathering component which are movably connected with each other, and the first energy gathering component can move relative to the second energy gathering component; the atomizer is arranged facing the energy gathering assembly; and the energy gathering assembly is arranged in the body, liquid fills thebody, and part of the liquid fills between the atomizer and the energy gathering assembly. According to the humidifier, the connection condition between the first energy gathering component and the second energy gathering component can be automatically adjusted according to the height of the water level so as to adjust the overall length or height of the energy gathering assembly, and when the water level is high, the overall height of the energy gathering assembly is increased, and when the water level is low, the overall height of the energy gathering assembly is decreased, so that the overall length or height of the energy gathering assembly can be matched with a distance between the liquid level of water and the atomizer all the time, and therefore the energy gathering assembly can play a good energy gathering role all the time.

The invention discloses a brightness transformation domain intra-frame prediction coding and decoding method and a system, and belongs to the field of video coding and decoding. According to the coding and decoding method, a high energy-accumulation performance of a transformation domain and relevance between a current coding block and an adjacent coded block are adopted for transformation domain intra-frame prediction of a transform domain information block; redundancy of intra-frame information is eliminated; the coding process can be rough divided into a prediction module, a transformation module, a quantification module, a reordering module, an entropy coding module, and the like; the used transformation method is a transform method of the transformation module of the subsequent coding process; a calculation load is not increased additionally; and as the transformation domain has the characteristic of high energy-accumulation performance compared with a space domain, the coding and decoding method and the system can improve the intra-frame prediction performance.

The invention discloses an integer transformation method for video coding. The method comprises the following steps of: based on the Discrete Cosine Transform (DCT) of the conventional time-frequency conversion algorithm, setting a threshold value for error control, solving a quantitative integer parameter so as to perform integer approximation on a transformation parameter of the DCT, solving an optimal approximation integer orthogonal transformation matrix, and performing time-frequency conversion on a video signal by using the integer transformation matrix. The integer transformation matrix, which is used for performing the time-frequency conversion on the signal, provided by the embodiment of the invention is simple and convenient to compute, has the energy aggregation close to DCT, and can effectively compress the signal.

The invention aims to provide a folded-shape external-mixing type atomization sprayer based on special-shaped hole airflow assistance. The sprayer is formed by assembling a plurality of detachable type parts designed in a split manner. The sprayer comprises a water pipe, a connecting and sealing piece of the water pipe, a spliced hole connecting assembly, a pneumatic connector and a spray nozzle. In use, airflow sprayed out of an atomizing hole acts on fog drop groups at a certain angle, the fog drop groups are further crushed to achieve secondary atomization, the average diameter of liquid is reduced, the liquid distribution uniformity is improved, and therefore the atomizing quality is improved. Airflow sprayed out of a folded-shape hole acts on the fog drop groups at a certain angle, the airflow will narrow the effective covering area of the atomized liquid drops to achieve shape folding, and the spraying and applying accuracy and the pesticide utilizing rate of the sprayer are improved.

The invention relates to a water turbine based on combined type multi-stage tidal current energy power generation. The water turbine comprises a flow guide cover and a rotating wheel composed of a bearing supporting frame, a rotating shaft and an impeller. The impeller comprises a plurality of pyriform line wing type blades, the rotating wheel is fixedly arranged at the 2 / 3 position of the middlesection of the flow guiding cover, and the two ends of the flow guiding cover are each in a horn shape, wherein an inlet of the flow guiding cover is slim, and an outlet of the flow guiding cover is thick. The middle section is in a leaner shape, and the top and the bottom of the flow guiding cover are both the horizontal plane. The pyriform line wing type blades take the rotating shaft as the center on a blade fixing plate and circumferentially distributed in space and welded and fixed to the bearing supporting frame, and X and Y represent the spatial coordinate values of a key point on the section wing type curve of one single pyriform line wing type blade correspondingly. The water turbine is simple in structure and high in efficiency, can be used for sea tidal current energy power generation and can also be used for power generation under the micro tidal current energy conditions such as mountains, plains, mountain springs, small reservoirs and streams.

The invention provides a method and a system for predicted encoding and decoding in a chrominance frame of a transform domain. The method is used for eliminating the redundancy degree of information in the frame by utilizing the high energy gathering property of the transform domain and the correlation of the current encoding block and the adjacent encoded block, wherein the encoding flow can be roughly divided into a prediction block, a transform block, a variant block, a rearranging block, an entropy encoding block and the like. The method has the advantages that the used transform method is the transform algorithm of the transform block of the subsequent encoding flow, so the additional increasing of calculation amount is not needed; in addition, compared with the space domain, the transform domain has higher energy gathering property, so the prediction property in the frame is improved.

The invention relates to an energy gathering assembly used for a gas stove. The energy gathering assembly comprises an inner ring and an outer ring. The outer ring and the inner ring are provided witha first annular wall and a second annular wall extending in the vertical direction correspondingly. The lower side edge of the second annular wall extends inwards in the circumferential direction toform an energy gathering ring wall, and the energy gathering ring wall evenly inclines towards the second annular wall downwards in the circumferential direction from the side of a mounting hole. Thefirst annular wall and the second annular wall are oppositely arranged inside and outside, and an energy gathering gap is reserved between the first annular wall and the second annular wall. Comparedwith the prior art, the superficial area of the energy gathering assembly is relatively small, and therefore outward heat radiation can be reduced to a certain degree; and the energy gathering gap isreserved between the first annular wall and the second annular wall, and therefore heat conduction between the first annular wall and the second annular wall can be reduced, heat dissipation can be further reduced, and the energy gathering effect of the energy gathering assembly is better. Meanwhile, the inner wall is provided with the energy gathering ring wall, the energy gathering ring wall inclines downwards from the center to the outer circumference, and therefore the functions of promoting combustion of a combustor and containing overflow liquid can be achieved.

The invention relates to an energy gathering device which is characterized by comprising a mounting table, mounting frames, rotating frames, reflectors, arc-shaped sliding rails, connecting rods, sliding parts, driving devices and pull ropes, wherein the mounting frames are arranged on the mounting table; the rotating shaft of each rotating frame is rotationally arranged on the corresponding mounting frame, and the rotating shaft of each reflector is rotationally arranged on the corresponding rotating frame; the arc-shaped sliding rails are arranged on the mounting table, the sliding parts arearranged in the arc-shaped sliding rails in a sliding mode, the connecting rods are respectively connected with the sliding parts and the reflectors, and the radians of the arc-shaped sliding rails are different so that the rotating directions of all reflectors are different; the pull ropes are fixedly connected with the sliding parts; and the pull ropes are wound on the corresponding driving devices, and the driving devices pull the pull ropes to move. The energy gathering device has the advantages that the energy gathering effect is good; the reflection angles of the reflectors can be adjusted and controlled according to different sun irradiation angles, and the shapes of the arc-shaped sliding rails are easy to determine, thereby realizing driving linkage of the reflectors; and batch production can be realized.

The invention relates to an energy-gathering joint-cutting pipe. The energy-gathering joint-cutting pipe comprises a pipe body, a first sleeve fixing hole, centering foam, energy-gathering joint-cuttings, air interval fixing holes, fixing screws, a second sleeve fixing hole, a sleeve and a detonator wire hole, wherein the energy-gathering joint-cuttings are located on the two radial sides of energy-gathering pipes and are symmetrical about the central axes of the energy-gathering pipes; the sleeve is a connecting piece used for connecting the two energy-gathering pipes and needs to be matched with the fixing screws for use; the sleeve fixing holes are located in the two ends of the pipe bodies of the energy-gathering pipes and the sleeve; and the centering foam is connected with the pipe bodies of the energy-gathering pipes in an adhesive mode, and the energy-gathering pipes are fixed to the central positions of blast holes. The steel energy-gathering pipes improve the constraint effect on explosives, so that the energy-gathering effect is more remarkable; and non-coupling explosive charging and radial interval explosive charging are adopted in the blast holes, the centering foam is used for guaranteeing that the circle centers of the energy-gathering pipes coincide with the circle centers of the blast holes, and the directions of the energy-gathering joint-cuttings are consistent with the pre-splitting direction, so that the unit consumption of the explosives is greatly reduced, blasting vibration is effectively controlled, and meanwhile, the construction cost is reduced.

The invention discloses an energy gathering ring and a stove burner. The energy gathering ring comprises an annular lower layer body, an annular upper layer body, and at least one middle layer body, wherein the lower layer body is provided with an annular cavity with an upward opening; the upper layer body and the lower layer body are coaxially arranged, and an opening of the annular cavity is covered with the upper layer body; and the at least one middle layer body is fixed in the annular cavity, and a plurality of annular air heat insulation layers which are distributed up and down are isolated between the lower layer body and the upper layer body. The middle layer bodies are arranged in the annular cavity, so that the air heat insulation layers can be formed between every two adjacent middle layer bodies, between the adjacent upper layer body and the middle layer body and between the adjacent middle layer body and the lower layer body, the air heat insulation layers can effectively reduce heat conduction between the layer bodies, the loss of heat from the upper layer body to the lower layer body is reduced, heat absorption of a cookware is enhanced, and the energy gathering effect of the energy gathering ring is better.

The invention relates to a solar energy gathering device and method for determining an inclination angle of a mounting slope of a mounting base assembly of a solar energy gathering device. The solar energy gathering device comprises a mounting support, an energy gathering structure, an east-west angle rotating structure, a pitch angle rotating structure, a mounting base assembly and a reflector, wherein the energy gathering structure is mounted on the mounting support, the mounting support is respectively connected with the east-west angle rotating structure and the pitch angle rotating structure, the mounting base assembly is mounted on the mounting support, an end of each mounting base assembly is provided with a mounting inclined surface, the mounting inclined surfaces are perpendicularto the normal between direct solar light and reflected light of the energy gathering structure, reflective mirrors are installed on the mounting inclined surfaces, and angles of reflective surfaces of the reflective mirrors and the mounting inclined surfaces are the same so that the reflective mirrors can reflect sunlight to the energy gathering device. The reflector is advantaged in that the energy gathering effect is good, a reflection angle of the reflector can be adjusted and controlled according to different solar irradiation angles, the machining process is simple, and batch manufacturing can be achieved.

The invention provides a secondary optical lens used in a focusing solar battery, which is used for converging sunlight and coupling the converged light rays into a solar battery chip. The secondary optical lens comprises a basal body, wherein the basal body comprises a light receiving surface and a light-emitting surface; the light receiving surface mainly comprises a convex cambered surface and a plane positioned above the convex cambered surface; the light-emitting surface is a plane; and the plane above the convex cambered surface is parallel with the light-emitting surface. The secondary optical lens increases the light convergence energy, enlarges the allowed incidence angle of the sunlight, solves the problem in causing local overheating of the battery chip due to nonuniform light convergence to further reduce the photoelectric conversion efficiency of the battery chip, improves the stability of the battery chip for long-term operation, and simultaneously converges more sunlight to the surface of the battery chip so as to improve the power generation efficiency of a whole electro-optical system.

The invention discloses a whirlwind type multi-layer air inlet hood installed inside a biomass combustion furnace. The whirlwind type multi-layer air inlet hood comprises surface hoods and whirlwind blades, and is characterized in that the multi-layer air inlet hood consists of two or more surface hoods; a fire hole is formed in the center of the surface hoods; and the whirlwind blades are uniformly installed at an inner wall of the surface hoods. The whirlwind blades are linear-shaped or arc-shaped and are uniformly distributed with the fire hole in an oblique incidence manner; the whirlwind blades are installed in a certain angle with the inner walls of the surface hoods; and a plurality of surface hoods are overlapped so as to form a multi-layer air inlet. The whirlwind type multi-layer air inlet hood is simple in structure, scientific in air inlet mode and excellent in energy concentration effect, pyrolysis and combustion of tar and steam are prompted, the heat efficiency is improved, the energy consumption of the biomass energy is reduced, and the carbon discharge is reduced. The whirlwind type multi-layer air inlet hood is applicable to a biomass combustion stove.

The invention provides a pot rack, a gas stove and a processing method of the pot rack, relates to the technical field of gas stoves, and aims to alleviate the technical problem of serious heat lossescaused by poor energy gathering effects of a pot rack in the prior art. The pot rack comprises a body, a through hole for a combustor to penetrate through is formed in the middle of the body, the body comprises a top plate and a bottom plate, and a closed cavity is defined by the top plate and the bottom plate; and an open energy gathering cavity is formed in the outer surface of the top plate and is communicated with the through hole. The gas stove comprises the pot rack. The machining method of the pot rack comprises the following steps that center holes are machined in the top plate and the bottom plate; the top plate and the bottom plate are stretched through a die to form profile structural parts; and corresponding edges of the top plate and the bottom plate are welded to form the closed cavity, and the center holes of the top plate and the bottom plate are coaxial. According to the pot rack, the gas stove and the processing method of the pot rack, heat losses can be reduced.

The invention discloses an energy gathering disc assembly which comprises an upper-layer disc, a lower base assembly, a smoke collecting cover and at least three furnace lugs. At least one flue gas collecting hole is annularly formed in one end, far away from a combustor, of the upper-layer disc at intervals. A cavity structure is defined by the lower base assembly and the upper-layer disc, and the lower base assembly abuts against the combustor at the position corresponding to a second through hole in a clearance fit mode. The smoke collecting cover and the lower base assembly are detachably fixed in a height-adjustable mode, and the smoke collecting cover and the lower base assembly define a cavity structure for containing the upper-layer disc. At least three furnace lugs are annularly arranged on the upper-layer disc at equal intervals, penetrate through the upper-layer disc and are fixed with the upper-layer disc, and the furnace lugs are detachably fixed with the lower base assembly. The energy gathering disc assembly is simple in structure, the energy gathering effect is improved, heat resistance is increased, heat loss is reduced, and heat efficiency is improved.

The invention discloses a universal stove rack. By eliminating a ring-shaped support seat, support feet are used as matched support points of a gas cooker countertop, the stove rack can flexibly cooperate with an energy focusing disc, supporting surface mating blocks abut against the energy focusing disc, and cookware supporting feet are formed by the supporting surface mating blocks. By means ofthe universal stove rack, telescopic adjustment rods telescopically adjust the overall length of the universal stove rack, so that adaptability to placement of the energy focusing disc of the gas cooker countertop is achieved. By means of bulbs, the directions of the supporting surface mating blocks can be adjusted universally, so that the matching stability of the universal stove rack, the energyfocusing disc as well as a pot body is improved, and the combustion efficiency of a burner and the energy gathering effect of the energy focusing disc are improved.

The invention discloses a cooker burner, which comprises a fire cover, a cooker panel and an energy gathering cover, the energy gathering cover is arranged on the cooker panel, the energy gathering cover surrounds the fire cover and covers the On the peripheral side of the fire cover, a heat exchange space is formed between the fire cover, the cooker panel and the energy gathering cover, the entrance of the heat exchange space is located between the cooker panel and the fire cover, the The interior of the energy gathering cover is provided with a secondary air supply channel, which communicates with the heat exchange space, and extends to the upper surface of the fire cover. A heat exchange space is formed between the fire cover, the cooker panel and the energy gathering cover. The fire cover, the cooker panel and the energy gathering cover perform the first heat exchange with the air in the heat exchange space, and the air after heat exchange flows through the energy gathering cover The internal secondary air supply passage and the energy gathering cover perform a second heat exchange, and the air after the above two heat exchanges finally reaches the upper surface of the fire cover through the secondary air supply passage, which improves the combustion efficiency of the stove burner.

The invention discloses a stove burner which comprises a burner cap, a stove panel and an energy accumulating hood. The energy accumulating hood is arranged on the stove panel, encircles the burner cap and covers the peripheral side of the burner cap, a heat exchange space is formed among the burner cap, the stove panel and the energy accumulating hood, an inlet of the heat exchange space is located between the stove panel and the burner cap, a secondary air supplementing channel is arranged in the energy accumulating hood, the secondary air supplementing channel communicates to the heat exchange space, and the secondary air supplementing channel extends to the upper surface of the burner cap. As the heat exchange space is formed among the burner cap, the stove panel and the energy accumulating hood, the burner cap, the stove panel and the energy accumulating hood can perform first time heat transfer with air in the heat exchange space, air after heat exchange flows the secondary air supplementing channel in the energy accumulating hood exchanges heat with the energy accumulating hood for the second time, and the air exchanged in heat for two times arrives at the upper surface of the burner cap finally, so that the burning efficiency of the stove burner is improved.

The invention discloses a method for willow artwork dyeing through a natural indigo pigment. The method comprises the following aspects that (1) indigo extraction is conducted, specifically, a plant raw material is subjected to crushing, fermentation, water soluble extraction and low-temperature drying, and the indigo pigment is prepared; (2) acid-alkali steeping is conducted, specifically, a hydrochlric solution with the concentration being 0.3-0.4% and a sodium hydroxide solution with the concentration being 0.25-0.3% are used to steep a willow artwork correspondingly; (3) cooking for impurity removal is conducted, specifically, impurities in the willow artwork is removed through cooking; (4) steaming for dyeing is conducted, specifically, the indigo pigment with the mass being 11-13% that of distillation boiler water is added, and steam dyeing is conducted; (5) low-temperature drying is conducted, specifically, the dyed willow artwork is dried; (6) infrared color fixing is conducted, specifically, the willow artwork is wrapped through mixed slurry and placed under infrared lamplight with the illumination intensity being 470-520 lux for color fixing; (7) ultraviolet inspection is conducted, specifically, the willow artwork subjected to color fixing is placed under an ultraviolet lamp, and the color fixing condition is inspected; and (8) tung oil layer coating is conducted, specifically, the willow artwork qualified after inspection is coated with tung oil, and after drying, the willow artwork with the natural indigo pigment is prepared.

The invention discloses a special cartridge for a laneway outline and a production method of the special cartridge. The special cartridge comprises an antistatic cartridge case and emulsified explosive, wherein the antistatic cartridge case is a thin-wall cylinder; one end of the thin-wall cylinder is sealed and the other end of the thin-wall cylinder is opened; the thin-wall cylinder is filled with the emulsified explosive through one open end; a cylinder wall of the thin-wall cylinder is provided with two groups of energy releasing gaps along the longitudinal direction; the two groups of energy releasing gaps are symmetrically distributed along the radial direction of the thin-wall cylinder; each group of energy releasing gaps comprise a plurality of gaps which are not communicated with one another and are collinear, and the gaps have wide inside and narrow outside. The gaps, which are not communicated with one another, are used as the energy releasing gaps, so that explosion energy can be collected better and the better laneway outline is obtained.

The invention discloses a blast hole inner multi-point energy-gathered micro perforation type blasting method and an installation structure thereof. The method includes the steps that firstly, explosive column plasticity is utilized, 1-6 energy-gathered covers with pointed-cone-shaped tops and bottom pressing edges are inserted into an explosive column from the side face of the explosive column through the pointed-cone-shaped structures on the tops till the bottom pressing edges of the energy-gathered covers face outwards and are attached to the surface of the explosive column, then the energy-gathered covers are fixed to the explosive column, manufacturing of an energy-gathered blasting cartridge is completed, and it is ensured that all the energy-gathered covers are arranged on the sameside of the explosive column; secondly, multiple energy-gathered blasting cartridges manufactured according to the first step are input into a blast hole, during inputting, it is ensured that the energy-gathered hole directions of the energy-gathered covers on the energy-gathered blasting cartridges face the free face in the radial direction, and the energy-gathered blasting cartridges are in clearance fit with the blast hole; and thirdly, blasting is conducted according to the blasting networking step of conventional deep hole blasting. By means of the blast hole inner multi-point energy-gathered micro perforation type blasting method and the installation structure thereof, the drilling number and the explosive unit consumption are reduced, the blasting efficiency is improved, and the drilling and blasting cost is obviously saved.

The invention discloses an inner flame energy-concentrating riser pipe type gas burner, which comprises a big fire burner, a small fire burner, a mixing tube of the big fire burner, a positioning tube of the small fire burner, and a water collector. An inner ring of an annular shell of the big fire burner is an inverted frustum which forms an angle between 20 and 80 DEG with a horizontal plane, and 1 to 5 fire exhaust holes are formed on the inner ring. One end of the mixing tube of the big fire burner is connected with the annular shell and communicated with an inner cavity of the annular shell, while the other end is communicated with a big fire nozzle which is arranged on the lower part of the water collector. The small fire burner comprises a frustum cap shell and an inner cavity of the frustum cap shell, wherein 1 to 5 fire exhaust holes are formed on external side face of the frustum cap shell, and the inner cavity of the frustum cap shell is communicated with a small fire nozzle which is positioned on the lower part of the water collector by a mixing tube of the small fire burner. The inner flame energy-concentrating riser pipe type gas burner has the advantages of reasonable structure, high thermal efficiency, material conservation, convenient processing, excellent energy-saving effect, less exhaust emission and the like.

The invention provides a burner fire cover, a burner and a gas stove. The combustion efficiency can be improved, and the backfire phenomenon can be avoided. The burner fire cover comprises a central energy-gathered burner fire cover unit and at least two outer ring energy-gathered burner fire cover units; the central energy-gathered burner fire cover unit comprises a central atmosphere type fire cover arranged in the center and a central infrared type fire cover arranged around the central atmosphere type fire cover; the at least two outer ring energy-gathered burner fire cover units are sequentially arranged around the central energy-gathered burner fire cover unit from inside to outside; each outer ring energy-gathered burner fire cover unit comprises an annular atmosphere type fire cover arranged on the inner side and an annular infrared type fire cover arranged on the outer side; the height of the central infrared type fire cover is 1.2-1.5 times that of the central atmosphere typefire cover; the height of the annular infrared type fire cover is 1.2-1.5 times that of the annular atmosphere type fire cover; the shapes of fire holes in the central infrared type fire cover and the annular infrared type fire cover are both in thin kidney shapes with the inner diameters gradually decreased and then gradually increased from the bottoms of the fire holes to the upper sides.