60results about How to "Low mechanical strength requirement" patented technology

The invention provides a device for testing the axial loading / unloading gas permeability of coal, comprising a gas pressurizer, a permeability test unit, an axial pressuring and unloading device and a gas collecting device, wherein the permeability test unit consists of a pressure chamber, a bleeder vent plate, a base, the base is provided with a gas inlet channel, a gas outlet channel is arranged at the top part of the pressure chamber and a piston pressure gauge is fixed on the top part; the permeability test device is arranged in the axial pressuring and unloading device which is composed of a lifting table, a triaxial shear instrument, a proving ring arranged at the upper part of the triaxial shear instrument, and the proving ring is provided with a strain dial gauge and a force-measurement dial gauge; the air tube of the gas pressuring device is connected with an air inlet of the base of the axial pressuring and unloading device; and the air header of the gas collecting device is connected with an air outlet at the upper part of the pressure chamber of the axial pressuring and unloading device. The device in the invention is suitable for permeability test for various coal body structures in particular to coal sample construction under the loading and unloading conditions, and has simple structure, convenient operation and good test repeatability.

The invention discloses an active coke / charcoal flue gas desulphurization denitration and elemental sulfur-recovery technology and device. The technology utilizes active coke / charcoal as an adsorbent and can realize synergetic removal of pollutants in flue gas in an adsorption tower, and the adsorbed active coke / charcoal are fed into a regeneration tower for heat regeneration; the regenerated active coke / charcoal is screened by a screening machine, the active coke / charcoal having large granule sizes is returned to the adsorption tower and then are subjected re-adsorption, and the active coke / charcoal having granule sizes less than 1.5mm is fed into a gasification furnace for water gas synthesis; and the water gas and SO2 obtained by heat regeneration undergo a reaction in a reduction tower to produce elemental sulfur steam, the sulfur steam from the reduction tower is fed into a condenser and then is condensed into sulfur solids, and the non-condensable gas from the top of the condenser is fed into the adsorption tower. The technology and device realize synthesis of water gas from small-granule active coke / charcoal obtained by adsorption-regeneration, realize reduction and enrichment of SO2 thereby preparing elemental sulfur, improve an active coke / charcoal utilization rate and realize high-value recovery of a sulfur resource.

The invention relates a process for preparing isobutylene by dehydrogenating isobutane. The process is characterized in that H2 and steam are adopted and used as diluents, a loaded platinum dehydrogenation catalyst is adopted and used for performing dehydrogenation reaction on the isobutane in a static bed adiabatic reactor; after being subjected to heat exchange and cooling, a reaction product is separated and purified; the unreacted isobutane returns to a dehydrogenation reactor; in separating and refining of the product, light components, namely, H2 and C1-C3, are separated by the copious cooling method; the isobutane and the isobutylene are separated by the method of catalyzing and distilling to generate methyl tert-butyl ether (MTBE); and then the obtained MTBE is cracked to obtain the isobutylene. By adopting the process, H2 with purity more than 98% and a high-purity isobutylene product can be obtained; simultaneously, the consumption of raw materials can be effectively reduced, and the equipment investment and operation cost are decreased.

The invention relates to a direct reduction method for treating industrial waste slag in a rotary hearth furnace, belonging to a new direct reduction ironmaking process in the metallurgical industry. The main process is: ingredients - mixing - pellets - drying - preheating - reduction - metallized pellets. Metallized pellets with a metallization rate of over 80% can be obtained after reduction in a rotary hearth furnace. The present invention comprehensively recycles and utilizes valuable elements in iron-containing industrial waste residues, economically obtains reducing agent resources, and solves the problem of low falling strength of cold solidified carbon-containing pellets prepared in the process of comprehensive recycling of industrial waste residues It has the advantages of high metallization rate, simple operation, easy control of process conditions, less equipment investment, low production cost, easy to meet raw material conditions, etc., and the overall process is more energy-saving than the furnace smelting process. It is also more environmentally friendly, and more importantly, the method can comprehensively recycle industrial waste, reduce its pollution to the environment, and save energy and protect the environment.

A suspension type automatic storage and retrieval system comprises a storage shelf (100), an article container (200), an article taking and placing port (300), a conveying mechanism (400), a control system and a photoelectric sensing system. The article container (200) is suspended on the storage shelf (100), the article taking and placing port (300) is arranged at one end of the storage shelf (100), the conveying mechanism (400) reciprocates between a suspension position of the article container (200) and the article taking and placing port (300) and is used for conveying articles, the control system is used for controlling running of the conveying mechanism (400), and the photoelectric sensing system is connected with the control system and used for positioning. The suspension type automatic storage and retrieval system is simple in structure, an automatic adjustment and suspension device can automatically adjust the center of gravity of a container, the container can be restored in a correct state through an automatic adjusting mechanism even if the container is positioned with deviation or on the skew during picking and placing, so that accurate taking and placing can be guaranteed when taking and placing of the container are needed, and normal operation of the system is guaranteed.

The invention provides an ISG (integrated starter generator) motor. The ISG motor comprises a shell, a stator, a rotor, a rotating shaft, two bearings, a front end cover and a rear end cover. The ISG motor is a disc-type motor, the rotating shaft is a hollow shaft, and the disc-type motor also comprises a separation plate, a ball-cage constant-speed coupler and a rotary transformer. The invention also provides a hybrid power drive system with the ISG motor. The hybrid power drive system comprises an engine, a car clutch, a drive motor, a transmission shaft driving axle and a control assembly, the engine is sequentially connected with the car clutch, the drive motor and the transmission shaft driving axle, the engine is coaxially and integrally installed with the car clutch and the drive motor, the ISG motor is connected with the engine by virtue of the ball-cage constant-speed coupler, and the ISG motor and the engine are coaxially installed in a splitting manner. The ISG motor is small in size, small in occupied installation space and small in weight, an additional set of flywheel and flywheel shell is not needed, the axial length is reduced, and the problems caused by the arrangement of a belt transmission device such as low transmission efficiency, high oil consumption and complicated structure of the drive system can be avoided.

The invention discloses an extra-high-pressure wall bushing. The extra-high-pressure wall bushing disclosed by the invention comprises an outdoor bushing, a middle connecting pipe and an indoor bushing which are sequentially connected, wherein the outdoor bushing and the indoor bushing are straight pipes, the lower end of the outdoor bushing and the lower end of the indoor bushing are respectively connected with the two ends of the middle connecting pipe, the outdoor bushing and the indoor bushing respectively incline towards the two outer sides of the middle connecting pipe, and the middle connecting pipe is connected with a ground support. According to the extra-high-pressure wall bushing, because the overall bushing is similar like a V shape, the part of the wall bushing, which is connected with a wall body, does not need to be arranged at a higher position of the wall body and can be supported by the arranged ground support, thereby reducing the pressure on the wall body and lowering the requirement on the mechanical strength of the wall body; after the wall bushing is installed, the outdoor bushing and the indoor bushing extend from the lower position of the wall body to a high position far away from the wall body, so that more low-position space is not occupied, thereby facilitating the arrangement of other things; and the situations that traditional extra-high-pressure wall bushings are inconvenient to transport and lift and parts of traditional extra-high-pressure wall bushings are difficultly processed are completely changed.

The invention discloses a hybrid current collector used for lead storage batteries, which is characterized in that the hybrid current collector comprises at least one conducting framework and a shaping framework, the conducting framework is molded in a hybrid form, the shaping framework is manufactured by lightweight hard materials, and the hybrid current collector is a grid plate with hollow grids or a plate-shaped current collector without grids. The hybrid process of the conducting framework and the shaping framework includes injection molding and joggle fixing molding, wherein the injection molding utilizes thermal plastic and cold extrusion or uses cement concrete, the joggle fixing comprises steps of utilizing the lightweight hard material to manufacture a substrate module which is used as the shaping framework and then joggling and fixing the shaping framework with the conducting framework which is designed as a coupling module. The conducting framework of the current collector can extend to form an integrated lead electrode or is electrically fixedly connected with a split lead electrode. The polar plate manufactured by utilizing the current collector is light in weight, high in specific energy, simple in manufacture and low in material cost.

The invention relates to a high-voltage direct-current polar PLC capacitor which comprises a capacitor column formed by vertically stacking 7-30 layers of capacitor units and 2 insulator columns with the same layer and height with the capacitor column, or 2 capacitor columns, or an insulator column and a capacitor column, wherein a high-voltage connecting terminal and a low-voltage connecting terminal are respectively led from the upper end and the lower end of the capacitor column; the bottom ends of the three columns are fixed on a base bracket, the central connecting lines of the three columns on the same plane form a triangle, each side length of the triangle is 2-10 times as long as the diameter of the capacitor unit, the angles of the triangle are 30-90 degrees, and the optimum is an equilateral triangle. Three capacitor units and / or post insulators are arranged in and connected with each layer or at interval of 1-3 layers so that the three columns form a whole body, therefore, the stability is improved. Grading rings are arranged in each layer or at interval of 1-3 layers at the top layer of the high-voltage end of the capacitor column and within 20 layers near the high-voltage end so that the corona generation is reduced. The capacitor greatly reduces the requirement to the mechanical strength of porcelain bushings of the capacitor units, reduces the cost by 10 times, improves the capacitor stability and is convenient to install.

The invention relates to an RGV body, and belongs to the technical field of tracking conveying vehicles. The RGV body runs on the foundation track and comprises a vehicle frame and a multi-stage platform installed in the vehicle frame in a floating mode. The floating installation mode is achieved through a flexible chain connected between the vehicle frame and the multi-stage platform. The multi-stage platform is suspended by a flexible chain, so that floating fit between the multi-stage platform and the vehicle frame is realized; the vehicle body further comprises an aligning mechanism, and the aligning mechanism is located between the multi-stage platform and the vehicle frame to achieve aligning or resetting of the multi-stage platform relative to the vehicle frame. After the multi-stage platform grabs and unlocks a vehicle chassis and a battery locking mechanism on the chassis in a matched mode, the flexible chain enables the multi-stage platform to swing laterally through lateral swing to adapt to matching of the positioning cone and the conical groove, and accurate floating grabbing of a vehicle-mounted battery is facilitated. After the vehicle-mounted battery is grabbed, an aligning mechanism is installed between the multi-stage platform and the upper connecting frame, and the multi-stage platform is assisted in rapidly and accurately aligning or resetting.

The invention discloses a die-cutting machine with improved die-cutting tool structure applicable to coiled materials, which can solve the technical problems that die-cutting tools in the prior art are high in cost, long in manufacturing period, poor in durability, complex in machine adjustment, heavy in machine, low in die-cutting quality, low in die-cutting speed, unsuitable for small-batch production, and the like. The die-cutting machine comprises a frame, as well as a coiled-material pulling unit, a coiled-material tensioning device, a mark detecting unit and at least one feed unit which are connected with a control system, wherein the coiled-material pulling unit controls coil material to move forwards along the length direction of the coiled material; the coiled-material tensioning device controls the coiled materials to move reversely along the length direction of the coiled materials; the mark detecting unit comprises marks arranged on the coiled material and a mark detecting sensor; the feed unit controls a die-cutting tool to move along the width direction of the coiled material and controls the die-cutting tool to penetrate or retract relative to the coiled materials; and the feed unit comprises a guide rail arranged along the width direction of the frame, a tool rest which is positioned on the guide rail and connected with a feeding motor, as well as a tool arranged on the tool rest.

The invention provides an electric furnace device for component fire protection design and fire protection supervision and a using method. The using method comprises the following steps of: step 1. determining a test scene; step 2. installing the device in position on site; step 3. installing a test sample to be tested, to be specific, step 3A, adopting installation steps described in specifications when a cube test sample is adopted, and step 3B. adopting installation steps described in specifications when a cylindrical test sample is adopted; step 4. unexposed surface heat preservation selection, to be specific, step 4A. when the test sample to be tested is the cube test sample or the cylindrical test sample, adopting installation steps of a heat insulation cover described in specifications, and step 4B. the heat insulation cover is not used; step 5. preparing furnace temperature setting; step 6. selecting a control mode, to be specific, step 6A. using the control test process of a control part, and step 6B, using the control test process of a mobile terminal; and step 7. completing the whole test process, and storing the electric furnace device and the mobile terminal. The electric furnace device can simulate the true boundary relationship between a protected material and a heat insulation material, provides a simple and reliable equivalent heating curve setting method, canquickly form a test report, and greatly improves the efficiency of supervision and law enforcement.

The invention relates to a stator core liquid cooling system, and belongs to the technical field of motor cooling. According to the liquid cooling system, one end of a cooling plate or an iron core cooling pipe is connected with an air outlet channel, the other end of the cooling plate or the iron core cooling pipe is connected with a liquid return channel, and a condenser is arranged between theair outlet channel and the liquid return channel. Heat generated by the iron core is absorbed by a cooling medium in the cooling plate or the iron core cooling pipe, and the cooling medium absorbs heat to be vaporized, penetrates through the air outlet channel, is cooled and condensed into liquid in the condenser and then flows back into the cooling plate or the iron core cooling pipe through theliquid return channel. According to the stator core liquid cooling system, the phase-change heat exchange of the cooling medium is utilized to cool target equipment, the heat exchange efficiency is high, and the temperature control is uniform.

The invention relates to an external column type voltage limiter for an urban rail catenary. The external column type voltage limiter comprises a cross arm of a tower and further comprises a lightning arrester body and a post insulator. A spherical electrode is installed on the lightning arrester body, the lightning arrester body is connected with the post insulator through a conductive metal bar, a run-on plate is further installed between the tower cross arm and the post insulator and is in tight electric connection with the tower cross arm, the lightning arrester body is in tight electric connection with a fitting positioned on the post insulator, and an air gap is formed between the run-on plate and the spherical electrode. The external column type voltage limiter can be installed away from the insulator and provide multiple protections for the insulator and is suitable for being used on an urban rail catenary system.

The invention discloses a stirling engine. Compared with the prior art, a heater 25 of the stirling engine consists of a hollow cylinder 1, a circular ring 16 and other circular rings, an inner circular ring 15 and other inner circular rings, a sleeve 15 and a semispherical shell 13, the composite force of the air pressure of the air as a working substance on the heater 25 points to an axial line of the heater 25 and a heat isolation tube 8 is added in a cylinder 3; the design lowers the requirements of the cylinder 3 and the heater 25 of the stirling engine on the mechanical strength of advanced heat resistance alloy at high temperature, and meanwhile lowers the heat loss and temperature of the cylinder 3 as well as stabilizes the temperature thereof. Therefore, cylinder 3 and heater 25 can be made of advanced heat resistance alloy of a lower level to attain the same effect as using the prior advanced heat resistance alloy of a higher level, thus reducing the manufacture cost of the stirling engine, improving the heat efficiency and service life of the stirling engine. The stirling engine can use the high temperature thermal energy produced by fuel of solid, liquid or gas state and focused solar power as well as liquid or gaseous fluid with high temperature thermal energy. The stirling engine has the characteristics of wide range of fuel and thermal sources, high heat efficiency and environmental protection, and is widely developed and applied in future social production practice.

The invention discloses a circuit breaker and a double-crank-arm transmission device. A mechanism pull rod is directly connected with a pull rod of an arc-extinguishing chamber; and a resistor port pull rod is in control connection with the mechanism pull rod by double crank arms. The mechanism pull rod serves as a main power output; and the main crank arm and the crank arm serve as slave power outputs. When the mechanism and the arc-extinguishing chamber are connected directly, the closing resistor port is controlled by the double crank arms, so that the operation power losses of the main crank arm are minimized and thus the utilization rate of the mechanism is improved. During the opening and closing processes of the circuit breaker, a small force is applied to the driving crank arm of the mechanism, so that the mechanical strength requirement of the main crank arm is also greatly reduced and thus the mechanical reliability of the circuit breaker is improved.

The invention relates to the field of internal combustion engines, in particular to a rotor engine and a working method thereof. The rotor engine comprises at least one set of power modules for outputting power; the power modules include shells, end covers, two cylinder covers mounted on the shells, and N rotor units; the two cylinder covers are distributed in the upper and lower positions of the shells in a center symmetry manner; the N rotor units are arranged in the shells in sequence front and back; separation plates are arranged between the adjacent rotor units, and are provided with multiple air crossing small holes for ventilation among the rotor units; and N is a natural number not smaller than 2.

The invention discloses a portable foldable electric bicycle. The portable foldable electric bicycle comprises a frame body, wherein the frame body comprises main beams, support beams, cross beams and a lockable frame folding mechanism; the front ends of the main beams are rotatably connected with a front fork vertical tube through the frame folding mechanism; the rear ends of the main beams are rotatably connected with a rear wheel; the support beams are pivoted with the main beams in an intersected manner; the lower end of the support beams are connected with pedals; the front ends of the cross beams are connected with the main beams in a vertically rotary manner; the front ends of the cross beams are also connected with the front fork vertical tube in a front and rear rotary manner through the frame folding mechanism; the rear ends of the cross beams are provided with sliding grooves with lock-up grooves; the upper ends of the support beams are connected with the cross beams in a front and rear sliding manner through connection pins which are inserted in the sliding grooves; and a saddle is arranged on the cross beams, and is located between connection points of the cross beams and the main beams and the connection points of the cross beams and the support beams. According to the foldable electric bicycle, requirements on strength of steel is lowered; the manufacture cost is lowered; and the foldable electric bicycle has the advantages of being light in weight and convenient for carrying.

The invention relates to a method for preparation of pentaerythritol and co-production of sodium oxalate. The method comprises the following steps: dissolving formaldehyde, acetaldehyde and sodium hydroxide, carrying out condensation reaction, adding an oxalic acid solution into a reaction liquid after heat preservation of the reaction, cooling, crystallizing, filtering to obtain a first filter material, washing the filtered first filter material, drying to obtain sodium oxalate, removing formaldehyde and methanol from filtered first mother liquor, concentrating, cooling, crystallizing, then centrifugally separating to obtain a second filter material, and washing and drying the second filter material to obtain the pentaerythritol; settling second mother liquor obtained by centrifugal separation, filtering, combining the filtered filter cake into the first mother liquor, adding an oxalic acid solution into the filtered filtrate to adjust the pH value, crystallizing, filtering to obtaina third filter material, and washing and drying the filtered third filter material to obtain the sodium oxalate. The yield of the pentaerythritol in the method provided by the invention is more than or equal to 90%, and the purity of the pentaerythritol in the product is greater than or equal to 95%, the ash content is less than or equal to 0.03%, and the chromaticity of the platinum-cobalt coloris less than or equal to 50; the yield of the sodium oxalate reaches more than 98%, and the purity of the sodium oxalate in the product is greater than 98.5%.

The invention discloses an active coke / charcoal flue gas desulphurization denitration and elemental sulfur-recovery technology and device. The technology utilizes active coke / charcoal as an adsorbent and can realize synergetic removal of pollutants in flue gas in an adsorption tower, and the adsorbed active coke / charcoal are fed into a regeneration tower for heat regeneration; the regenerated active coke / charcoal is screened by a screening machine, the active coke / charcoal having large granule sizes is returned to the adsorption tower and then are subjected re-adsorption, and the active coke / charcoal having granule sizes less than 1.5mm is fed into a gasification furnace for water gas synthesis; and the water gas and SO2 obtained by heat regeneration undergo a reaction in a reduction tower to produce elemental sulfur steam, the sulfur steam from the reduction tower is fed into a condenser and then is condensed into sulfur solids, and the non-condensable gas from the top of the condenser is fed into the adsorption tower. The technology and device realize synthesis of water gas from small-granule active coke / charcoal obtained by adsorption-regeneration, realize reduction and enrichment of SO2 thereby preparing elemental sulfur, improve an active coke / charcoal utilization rate and realize high-value recovery of a sulfur resource.

The invention relates to a bilateral short primary synchronous reluctance linear motor which comprises two symmetrically arranged long secondary stators (2) and a short primary rotor (1) which is installed between the long secondary stators (2) and can do reciprocating motion, and gaps (3) are formed between the short primary rotor (1) and the long secondary stators (2) at the two sides. The short primary rotor (1) comprises a primary iron core (11) and an armature winding (12), tooth groove structures are arranged at the two sides, close to the long secondary stator surfaces (21), of the primary iron core (11), and the armature winding (12) is arranged in the tooth groove structures. Compared with the prior art, the motor has the advantages of high efficiency, low cost, high thrust density, low torque pulsation, wide speed regulation range and the like.

The invention discloses T-type oil-water separation equipment integrating two special wettable materials, and belongs to the technical field of wastewater treatment. The T-type oil-water separation equipment is of a three-channel structure and is arranged into a lateral T shape or an inverted T shape according to an oil-water separation system. In the three-channel structure, a vertically-upward channel serves as an oil-water mixing system inlet channel, and the other two channels serve as separation channels. A super-hydrophobic and super-oleophilic separation membrane AW and a super-hydrophilic and underwater super-oleophobic separation membrane AO are arranged in the two separation channels respectively. Compared with an existing oil-water separation mode adopting a single membrane, the problem that a liquid barrier layer is formed due to the large liquid density difference is solved, and continuous oil-water separation is achieved; meanwhile, hydrostatic pressure borne by the separation membranes is reduced in the double-channel separation mode, and the requirement for the mechanical strength of the separation membranes is reduced; continuous oil-water separation without the consideration of the oil-water density difference can be achieved.

The invention discloses an inflatable airtight isolation valve which can be used for facilities with high airtightness requirements. The inflatable airtight isolation valve includes a valve body, a valve board, a switch actuator, a rotating shaft, an inflatable air bag, and a inflation system. The inflatable airtight isolation valve can detect the tightness of an airtight door after the valve is closed. An inflation sealing method uses the air bag for inflation sealing. The tightness of the isolation valve is judged by detecting the airtightness of the inflatable air bag under the closed condition of the isolation valve. The isolation valve has higher airtightness and faster switching speed, and is suitable for rooms or other facilities with high airtightness requirements.

The invention discloses an engine oil control valve for end part oil supply. The engine oil control valve for end part oil supply comprises a valve body with an air inlet port located in one end in the axial direction, a piston and a compressed-state elastic element which are located in the valve body and sequentially arranged in the axial direction, and a filter used for filtering hydraulic oil flowing towards the interior of the valve body from the air inlet port, wherein the filter comprises an annular main body part and a filter screen fixedly arranged on the annular main body part; and the filter is located in the valve body, and the elastic element is clamped and pressed between the piston and the annular main body part in the axial direction. The engine oil control valve further comprises a limit part and a groove which are arranged on and in the inner wall of the valve body, and an oil channel penetrating through the annular main body part in the radial direction, wherein the limit part is located at one side facing the air inlet port, of the filter, the opening of the groove is located between the limit part and the piston in the axial direction, and the opening is formed in a manner of being spaced from the limit part in the axial direction. In the technical scheme of the invention, the hydraulic oil can still be normally supplied to a camshaft and a phase adjustor even if the filter screen is seriously blocked. In addition, requirements on the mechanical strength of the filter screen are lowered.

The invention provides a movable multi-section linear light source CT imaging system and method. The linear light source CT imaging system comprises a plurality of movable scanning sections, each scanning section comprises a linear distributed light source array and a linear detector array, the linear distributed light source array is used for emitting rays, and the linear detector array is used for acquiring scanning projection data. The linear distributed light source array is a movable light source array and / or the linear detector array is a movable detector array. According to the movablemulti-section linear light source CT imaging system and method, the scanning view can be changed, the flexibility of the imaging system is improved, and the imaging system can adapt to different application scenes.