34results about How to "Reduce the burst rate" patented technology

A pipe network node flow measuring and dispatching method based on pressure monitoring comprises the steps that node pressure of a predetermined node in a pipe network is measured actually, and according to the measured node pressure, based on the discrete point spatial interpolation computing method, node water heads of all nodes are worked out; the pipe section flow of a predetermined pipe section is measured actually, coefficients of friction resistance of all flow measuring pipe sections are determined according to the actually measured pipe section flow and the worked-out node water heads, pipelines are grouped through the spatial clustering algorithm according to the coefficients of friction resistance of the pipe sections, and coefficients of friction resistance of all pipe sections are determined; according to the worked-out node water heads, the coefficients of friction resistance of the pipe sections, pipe lengths and pipe diameters, the pipe section flows of all the pipe sections are worked out; according to the material equilibrium principle, the node flows of all the nodes are worked out, and therefore pipe network model updating and checking, pipe network dispatching, leakage quantity analysis, leaking point positioning and other pipeline maintenance and operation management are conducted conveniently. By applying the method, energy consumption and loss due to leakage can be reduced substantially, and the pipeline management level is improved.

Video data that is associated with a videoconference or a telepresence session is captured and a video signal relating thereto is provided. The video signal is divided into segments, which are identical from one video frame to another subsequent video frame within the video signal. Each segment is encoded independently, to result in encoded segment data such that both I-frames and P-frames are generated for a given segment, so as to support independent reconstruction of segments at a distant end. The encoded segment data is transmitted subsequently to the distant end.

The invention provides a safety analysis method for gearbox gears of heavy haul vehicles. The method is characterized in that the method includes in real time monitoring and collecting a vibration signal of a gearbox gear of a to-be-detected heavy haul vehicle, and selecting the optimal index subset with the maximum correlation and the minimum redundancy through distance based sensitive factors and maximum information coefficient (MIC); and establishing a belief rule-base (BRB) and ER inference based model according to selected representative indexes, and performing dimensionality reduction and de-correlation on the characteristic vectors consisting of running state parameters of a heavy haul vehicle gearbox so that the high accuracy analysis of the safety states of the heavy haul vehiclegearbox can be obtained. The advantages of the method are as follows: (1) dimensionality reduction and de-correlation can be performed on the characteristic vectors consisting of the running state parameters of the heavy haul vehicle gearbox; (2) the precision of the model can be enhanced; (3) the method can accurately judge the period of the maintaining, maintenance and part replacing of transmission gears through the assessment of gear states, and has important economic benefits; and (4) the emergent probability and downtime of accidents can be reduced, and the method has important theoretical and practical values for enhancing vehicle driving safety.

The invention relates to a method for partitioning pipe network pressure, and discloses the method for partitioning the pipe network pressure through combination of the ant colony algorithm and the pressure similarity analysis. The method solves the problems that partitioning cost is extremely high and engineering practicability is not high due to the fact that according to a traditional method for partitioning water supply network pressure, generally, only the node pressure similarity is considered and the pipe network topological structure is not considered. The method includes the steps of firstly, setting up a full pipe network hydraulic simulating model; secondly, converting a water supply network topological graph into a depth-first forest, and dividing the depth-first forest into a sub-graph Gi and a sub-graph Gj; thirdly, optimizing the boundaries of the sub-graphs through the ant colony algorithm, and minimizing the pipe section joint between the sub-graphs; fourthly, conducting pressure similarity analysis on areas not meeting the direct water supply requirement and surrounding areas, and combining the areas with the high similarity degree; fifthly, breaking off topological connection between the areas, judging whether to install a reducing valve or not, and forming the final pressure partitioning method. The method is applied to the field of urban water supply.

The invention relates to the technical field of heat injection steam and thickened oil thermal recovery, in particular to a heat injection steam dryness testing device. The device comprises a condenser, wherein a steam injection pipeline is connected to a steam inlet of the condenser, a steam outlet of the condenser is connected with a steam discharge pipeline, a cold water inlet of the condenser is connected with a cooling water inlet pipeline, a hot water outlet of the condenser is connected with a cooling water outlet pipeline, and a flow control valve, a flowmeter, a thermometer and a pressure meter are arranged on each pipeline. By testing the physical property parameters of the inlet pipeline and outlet pipeline of the condenser, the dryness value of inlet heat injection steam is obtained through analysis and calculation. According to the heat injection steam dryness testing device and a dryness value calculating method, the state of steam in the steam injection process can be dynamically monitored in real time, the testing device is simple and compact in structure, online continuous measurement of dryness can be achieved, reliability and precision are high, the oil recovery ratio can be increased effectively, and the boiler tube explosion rate can be reduced effectively.

The present invention relates to a carbon-silicon incubater, which comprises the following materials, by mass, 15-30% of graphite particles, and 70-85% of ferrosilicon particles. With the carbon-silicon incubater of the present invention, a large amount of graphite particles can be produced in liquid iron, such that eutectic cells can be refined with the graphite particles, carbon graphitization can be promoted, and iron carbide generation can be reduced. In addition, after annealing, mechanical properties of the carbon-silicon incubater of the present invention are high, and pipe explosion rate is significantly reduced.

The invention discloses a rotating anode CT bulb tube employing elastic metal fibers and graphene for improving heat dissipation, and belongs to the field of vacuum electronic medical devices. The bulb tube mainly comprises a tube housing, a rotating anode target connected in the tube housing, and a cathode which is located in the tube housing and is opposite to the rotating anode target. The rotating anode target is connected with the tube housing through a bearing. The tube housing comprises a cathode ceramic segment and a metal segment. The cathode ceramic segment is in a cylindrical structure with a central hole, and two ends of the cathode ceramic segment are respectively provided with an annular groove. The depth of one annular groove at one end of the interior of the metal segment is less than the depth of the annular groove at one end of the exterior of the metal segment. Moreover, an inner end face of the annular groove at the end of the exterior of the metal segment is lower than an outer end face. Nano-level graphene powder is disposed in a bearing ball cavity, and two ends of the bearing ball cavity are provided with stopping pieces. The elastic metal fibers are disposed between the surface of the rotating anode target and the opposite surface of the tube housing, and contact with the tube housing and a target head.

The invention discloses a damping anti-burst impatiens balsamina seed picking knapsack device capable of impact breaking and inflation breaking of peels, self-reversing and seed coat separation. The device comprises a double-layered cuddling viscoelastic damping vibration-reducing anti-burst picking mechanism, an impact puncture blow-type peel breaking mechanism, a multi-directional 90 degree reciprocating self-adjusting flip-propelled seed coat full separation mechanism and a lightweight backpack mechanism; the double-layered cuddling viscoelastic damping vibration-reducing anti-burst pickingmechanism is arranged on a portable knapsack mechanism, the impact puncture blow-type peel breaking mechanism and the multi-directional 90 degree reciprocating self-adjusting flip-propelled seed coatfull separation mechanism are arranged in the interior of the portable knapsack mechanism. The invention belongs to the technical field of impatiens balsamina seed picking machinery, and particularlyprovides the damping anti-burst impatiens balsamina seed picking knapsack device capable of impact breaking and inflation breaking of peels, self-reversing and seed coat separation. By means of the device, the seed burst rate is reduced through damping to achieve non-destructive picking, peels are distinguished and separated completely according to the maturity degree, and timely multi-directional degree reciprocating flip self-adjusting seed coat separation is carried out.

The invention discloses a manufacturing process of a decorative winebottle, which can decrease the cracking rate and the popping rate of the winebottle. The manufacturing process of the decorative winebottle comprises the following steps of: firstly carrying out applique on the surface of a glass winebottle, and then sending the glass winebottle into a decorating-firing furnace. The manufacturing process is characterized in that the manufacturing process of the glass winebottle in the decorating-firing furnace comprises the following steps of: a) placing the glass winebottle in the decorating-firing furnace for preheating, wherein the preheating time is more than 40 minutes and the glass winebottle is preheated to the temperature of 275 DEG C to 285 DEG C from a room temperature; b) carrying out heating operation after preheating, wherein the heating time is more than 30 minutes and the glass winebottle is heated to the temperature of 580 DEG C to 590 DEG C; c) carrying out heat preservation for 10 to 20 minutes after heating to the temperature of 580 DEG C to 590 DEG C; and d) carrying out cooling processing for the glass winebottle. Through the process, the cracking rate and the popping rate of the winebottle can be decreased, thereby the production qualified rate of the winebottle can be increased, the quality of products is ensured, and the manufacturing process is particularly suitable for being popularized and applied to the production of the glass winebottle.

The invention provides large-size artificial aluminum oxide-doped colored gemstones and a production method thereof. The colored gemstones comprise the following raw materials: Al2O3 and coloring elements. According to the method, the colored gemstone raw material formula is reasonably designed, large-size colored gemstones with different colors are obtained through a pulling process, so that thegemstones are bright in color; and through cutting and processing, materials of different parts can be used to prepare various industrial supplies, accessories and jewelry.

The invention provides a cooking equipment, comprising an equipment body; an inner pot is set in the equipment body; a spray device sprays water into the inner pot through the mouth of the inner pot when the spray device is working; a foam detector used to detect the foam in the inner pot rising to the preset position releases the anti-overflow signal; a controller connected to a timer, the spraydevice and the foam detector is used to start the spray device when the anti-overflow signal is received, and continues to detect the anti-overflow signal after the spray device is started, and startsthe timer with the anti-overflow signal undetected; the timer is used to detect the delay time of the foam detector and triggers the controller to control the spray device to shut down when the delaytime reaches preset time. The cooking equipment provided in this scheme sets the spray device to delay spraying water into the inner pot for effectively breaking the bubbles and avoiding the foam backwash, and realizes the anti-overflow function of the cooking equipment, and reduces the water loss in the inner pot to ensure the cooking taste.

The invention relates to a continuous rapid drying device for grains and belongs to the technical field of drying. The continuous rapid drying device structurally comprises a feed system, a heating section and a discharge system, all of which are orderly connected with each other; the feed system comprises a cone-shaped feed bin and a feeder; the heating section is composed of two or more than two sections of horizontal pipes which are arranged up and down from high to low and connected in series with each other; all the sections of horizontal pipes are basically the same in structure, each section of horizontal pipe is an elongated cylinder of which the two ends are sealed with seal covers, and the part between a feeding hole and a discharge hole of the elongated cylinder is horizontally arranged in the hollow part of an elongated interlayer heat source box; a copper screw rod which is as long as a lower circular-arc-shaped groove is built in the elongated cylinder; the discharge system is composed of a receiving valve and a receiving container. The continuous rapid drying device for grains is used for drying the grain raw materials in such a manner of directly heating by use of a modified screw propeller; the continuous rapid drying device is reasonable in structure, ingenious in design, and also capable of realizing accurate temperature control and thus suitable for drying various grain raw materials relatively high in moisture content.

The invention discloses a universal eye-catching float which comprises a float tail, a float body and a float leg which are arranged from top to bottom. An eye-catching coating is arranged on the surface of the float tail, the float tail comprises a flat float section, and the flat float section is made of an elongated thin film. According to the float, visual effect, amplitude sensitivity and turn-over performance of the float can be greatly improved, the float has higher simplicity and better buoyancy uniformity and quite meets current float using habits of fishermen, design embarrassment between various manually contradicted performances of an existing float is dispensed, the float has high universality, design of visual surface shapes response to different types of floats, decrease ofoverall float density, easy machining performance and float body and float leg performances are obviously improved, and the performance of the float is improved in a revolutionized manner.

The invention relates to a stepped oblique flow spiral baffle plate heat exchanger. A plurality of groups of spiral periodic baffle plate groups are arranged in the shell; each spiral periodic baffleplate group comprises a plurality of oblique flow curved surface baffle plates which are spirally arranged in the circumferential direction and have different phases; a certain inclination angle is formed between the inclined flow curved surface baffle plate and the cross section of the shell; every two adjacent oblique flow curved surface baffle plates in the shell are connected with a baffle plate through two adjacent straight edges located on the corresponding oblique flow curved surface baffle plate to form a step shape. The oblique flow curved surface baffle plates with the same phase inthe shell form an oblique flow curved surface baffle plate group, wherein the oblique flow curved surface baffle plate group in the same group is supported by a plurality of pull rods, and the pull rods are fixedly connected with the tube plate. The stepped oblique flow spiral baffle plate heat exchanger is easy to machine and assemble, low in cost and capable of avoiding flow leakage of a triangular area between two connected baffle plates.

The invention discloses a soft package polymer lithium ion battery corner sealing process which comprises the following steps: corner sealing is carried out by using a runway-shaped corner sealing head, the orientation of a runway is parallel to the height direction of a battery cell, the height from the lower edge of a corner sealing seal to a side edge corner line of an air bag at the bottom of the battery cell is 2-18mm, a reserved position in the corner sealing is 0.2-1.0 mm, the aluminum-plastic film is a nylon aluminum-plastic film of a three-layer structure or a PET aluminum-plastic film of a three-layer structure, and the deformation rate of the PP layer at the sealing position of the corner seal is 10%-55%. According to the invention, gas in the cell pit body can be extracted from a reserved position in the top sealing edge and can also be extracted from the bottom of the cell during air extraction, and a gas flow channel is added during air extraction, so that the probability of softening and cracking of the cell is reduced, the hardness of the cell is increased, and the service life of the cell is prolonged. The reject ratio of the air exhaust procedure and the possibility of corner breakage of the side corners of the air bag at the bottom of the battery cell are reduced; and meanwhile, the runway-shaped sealing head avoids serious damage to the aluminum plastic film due to overlarge local pressure of the corners of the sealing head.

The invention provides a sliding block balanced oil cylinder system without an external pipeline. The sliding block balanced oil cylinder system comprises a valve body and a sliding block, the valve body is fixedly connected with a cylinder rod of a plunger type cylinder directly through a flange, an inner cavity of the cylinder rod of the plunger type cylinder is a penetrating pipeline, and the pipeline is communicated with a magnetic ball valve in the valve body through the flange; the cylinder rod of the plunger type cylinder is sleeved with a cylinder body, the top end of the cylinder body is connected with the sliding block, and the tail end of the cylinder body is fixedly connected with an end cover through a gland cover. According to the sliding block balanced oil cylinder system without the external pipeline, the pipeline communicated with the cylinder rod of the plunger type cylinder is conductive with a valve block and the magnetic ball valve through the flange, high pressure oil produced due to the gravity of the sliding block or falling impact force directly enters the valve block through the pipeline in the plunger rod, whether oil drainage or locking is controlled through opening or closing of the magnetic ball valve, the strength and the integrity of the cylinder rod itself of the plunger type cylinder is utilized by the penetrating pipeline, the probability of leakage and pipe burst of the cylinder body connection part is effectively reduced, the advantages of being high in safety coefficient, good in explosion-proof property and the like are achieved, the structure is simple, the manufacturing cost is low, the practical performance is good, and the safety performance is high.

The invention discloses a method for improving wear resistance of a boiler pipe bend through foamed aluminum. The method comprises the steps that aluminum powder and a foaming agent are mixed evenly through a planetary ball mill according to the volume ratio being 2:1; the inner surface of a mold is evenly coated with evenly-mixed aluminum powder and foaming agent mixed powder, and the boiler pipebend is placed in the mold; the mold is placed in a vacuum diffusion welding furnace to be subjected to high-temperature treatment, and the pressure of 0.75 MPa is kept for the mold all the time in the processes of temperature increase, heat preservation and cooling; and the foamed aluminum covered layer of the outer surface of the boiler pipe bend subjected to high-temperature treatment is ground, and operation can be stopped when a black oxidization layer generated by high-temperature treatment is thoroughly ground off.

The invention discloses explosion-proof glass which comprises box body main glass, sound insulation glass is arranged at the rear end of the main glass, a partition plate is arranged at the upper end of the main glass, a protection mechanism is arranged at one end of the main glass, and the protection mechanism comprises a protection frame, a threaded hole, a fixing groove, a fixing block, a fixing plate, a sliding groove, a sliding block, a triangular plate and a first threaded rod. A buffer mechanism is arranged at one end of the protection mechanism. The triangular plate is fixed to the corner of the main glass, the situation that the main glass explodes due to the fact that a sharp instrument strikes the corner of the main glass is avoided, the displacement distance of the main glass is greatly reduced by means of stretching and compression of a buffer spring, the glass exploding probability is reduced, and by means of limiting of a limiting rod and fixing of a third threaded rod, the service life of the main glass is prolonged. The firmness between the glass and the wall body is improved, the development of the glass manufacturing industry is further promoted, and the use requirements are better met.

The invention belongs to the field of engines, and discloses an engine lubrication system and an engine. According to a method, a crankcase, a side cover and a bridge connection mechanism are included, a crankshaft is arranged in the crankcase, and a main oil passage of the crankshaft is arranged in the crankshaft; the side cover is arranged on one side of the crankcase, and a dark oil passage isarranged in the side cover; the bridge connection mechanism includes a casing and a sealing portion, the sealing portion is fixedly arranged on the outer side wall of the casing, one end of the casingis inserted into an outlet of the dark oil passage, and the sealing portion is located on the outer side of the outlet of the dark oil passage; and when the engine works, the casing moves towards aninlet of the main oil passage of the crankshaft under the pressure effect of the high pressure oil in the dark oil passage, so that the sealing portion is pressed against the inlet end face of the main oil passage of the crankshaft, the outlet of the dark oil passage and the inlet of the main oil passage of the crankshaft are connected in a sealed manner, and the high-pressure oil in the dark oilpassage enters the main oil passage of the crankshaft through the casing. The lubricating system can shorten the lubricating oil passage line, it is not necessary to increase the oil pump flow rate and oil pressure, and the probability of tube burst is reduced.

The invention provides an artificial alumina doped colored gemstone and a production method thereof. The prepared colored gemstone comprises at least one of purple gemstone, green gemstone and orangegemstone. According to the invention, various colored gemstone formulas are designed, and the production method is combined, so that the prepared gemstone is large in volume and bright in color, the problem of high bubble proportion in existing gemstone production is effectively solved, the bursting rate is also remarkably reduced, the prepared colored gemstone is large in size, and various industrial products, accessories, ornaments and the like can be prepared by cutting and processing various parts.

Solid dose compositions comprising at least one low solubility pharmaceutically active ingredient, at least one low solubility filler and at least one controlled release agent. comprising at least one poorly soluble pharmaceutically active ingredient, a insoluble binder and at least one controlled release agent along with a method of manufacturing said composition are disclosed. Methods for making these compositions are also disclosed.