211results about How to "No trouble" patented technology

The invention discloses a single pole grounding system and a fault detection device and method. According to the single pole grounding system and the fault detection device and method, before the grounding of a normal grounding point, the direct current bus voltages of a system and impedance sampling signals are obtained to calculate the earth impedance of the positive / negative pole of the single pole grounding system, then whether fault grounding points exist is judged, pre-detection before system operation is achieved, and no faults exist before the operation of the system; after the normal grounding points are grounded, whether a grounding fault exists is judged by detecting leaked currents; the grounding pole multipoint grounding fault and non-grounding pole grounding fault which occur during the operation process can be detected when the system is down or the normal grounding points are not grounded through calculating the earth impedance of the positive / negative pole of the single pole grounding system again. Thus, the single pole grounding system and the fault detection device and method achieve the detection on the multipoint grounding fault of the single pole grounding system and the non-grounding pole grounding fault which may occur at the same time.

The invention discloses a braking energy recovery control method for an electric bus. The method comprises the following steps: step 1, entering an automatic energy recovery mode; 2, sending the current vehicle speed to a vehicle control module; step 3, calculating a target vehicle deceleration and sending the target vehicle deceleration to the vehicle control module, and sending a brake pedal signal to the vehicle control module; step 4, sending the electric quantity of a battery to the vehicle control module, and calculating the maximum available recovery torque at different vehicle speeds;step 5, sending the maximum available recovery torque to a motor controller and executing the maximum available recovery torque by a motor; 6, feeding back the actual energy recovery torque to the vehicle control module and an electronic brake control system; 7, feeding back a real-time deceleration signal to the vehicle control module; and 8, adjusting the energy recovery torque. The reasonable energy recovery torque is adjusted according to the fluctuation of the whole vehicle servicing mass; when the servicing mass is low, the small energy recovery torque is requested, otherwise, the largeenergy recovery torque is requested, so the energy recovery rate is increased, and the braking comfort is considered.

The invention relates to an anti-biological clogging device for a drip-irrigation system. The drip-irrigation system is started, an air intake brake valve is opened, an ozone generator is started, and compressed water which comes from the head part of the drip-irrigation system is sprayed at high speed from a jet orifice of a jet nozzle so as to form the negative pressure in a gas injection cavity; and under the action of the negative pressure, the ozone generator ensures that ozone generated through air ionization enters the gas injection cavity through the air intake brake valve, a check valve and an air inlet pipe along with the air filtered by an air filter, and enters an oscillating cavity for vortex oscillation, stirring and aerification along with the high-speed water flow sprayed by the jet nozzle so as to form 'ozone water' of which gas and liquid are distributed uniformly, and the 'ozone water' enters the drip-irrigation system to kill microorganisms in flow channels and cansynchronously inhibit crop root systems from growing toward the direction of a water outlet of a drip irrigation emitter in an underground drip-irrigation system, so that the aim of biological clogging resistance of the drip-irrigation system is fulfilled. Compared with a method of injecting a chemical agent into irrigation water, the invention has the advantages that: the residue of harmful substances which can pollute the environment is not produced, and the risk of using dangerous chemical agents is avoided.

The invention discloses a round paper sheet pressing-in device for combined fireworks. The device comprises round paper sheet picking and pressing-in assemblies; each paper sheet picking and pressing-in assembly comprises a needle rod; an elastic clamping part protruding from the side surface of each needle rod is arranged on the part, close to the needle tip, of each needle rod; the needle rod above each elastic clamping part is arranged in a paper sheet pressing part and is located in the center position of each paper sheet pressing part; the paper sheet pressing parts are connected to an up-down reciprocating driving mechanism through a connecting part; a round paper sheet transferring part is correspondingly arranged below the paper sheet picking and pressing-in assemblies and is provided with cavities for positioning and loading round paper sheets; the lower parts of center holes of the round paper sheets are in a suspended state; the round paper sheet transferring part is connected to a left-right reciprocating driving mechanism; and a combined firework cylinder cake is located below the round paper sheet transferring part. The round paper sheet press-in device for the combined fireworks has the advantages that pressing-in work of the paper sheets of the combined fireworks can be completed automatically, the working efficiency is high, the round paper sheets are placed flatly, the assembly quality is high, and the work is reliable and free of faults.

The present invention provides a durable main air valve for heavy truck gear-box, relating to a shift main air valve of heavy truck gear-box. The aim of the invention is to resolve the problem of easy damage of the shift main air valve of the present heavy truck gear-box, not used for long period and difficult finish machining of the valve base sealing face, the main air valve cling to inner wall is fixedly assembled with a sliding bush, a rubber ring valve base component from left to right in orders, holes between the sliding bush and the rubber ring valve base from left to right are slidely assembled with a piston, a steel limit ring valve core, an aluminum reversing valve core and a spring in orders, wherein, the right of the piston and the left of the steel limit ring valve core are connected, the shaft drum external surface of the aluminum reversing valve core and the seal ring of the rubber ring valve base component form kinematical seal; the upper of the neutral gear bumper pin is inserted between the left baffle ring and the right baffle of the steel limit ring valve core, the right baffle ring sets multiple axial pylomes. The main air valve has a long using life, easy to process.

The invention discloses a jet-type crude oil and associated gas pressurizing mixing transportation process and device. The process and the device are designed to effectively solve the problems of oil-gas mixing transportation and recovery and utilization of usable natural gas. The process comprises the steps of filtering fed oil through a filter and then inputting the oil into a buffer tank to separate associated gases in the fed oil; inputting separated associated gases into a separation tank, and inputting separated crude oil into a mixing transportation pump for pressurization; and finally, pumping separated associated gases into a jet pump, and mixing separated associated gases with the pressurized crude oil for outward transportation. By the aid of the process and the device, the transporting crude oil pressurized by the mixing transportation pump is stable in constituent and low in oil-gas content ratio. The jet pump pumps associated gases to achieve oil-and-gas mixing transportation, so that baneful influence, such as shocks and heating, caused by direct mixing transportation of oil and gases through a pump can be eliminated, the service life of the pump can be prolonged, and the maintenance cost can be reduced. The jet pup is simple in mixing transportation structure, free of moving component and good in mixing transportation effect. According to the process, the system operation efficiency can be improved, associated gases in the crude oil can be recycled completely, and the resource utilization ratio can be improved.

The invention discloses a pneumatic discharging mechanism. The pneumatic discharging mechanism comprises a receiving channel, a diagonal bottom plate is arranged on an opening in the lower end of the receiving channel, the upper end of the bottom plate is located in the receiving channel and is closely connected with a side wall of the receiving channel, and a discharge opening is formed by the lower end of the bottom plate and the lower end of the side wall of the corresponding receiving channel; a baffle is arranged below a bottom plate, and a gap forming channel is formed between the baffle and the bottom plate; a horizontally or slightly inclined storage plate is arranged at the lower end of the baffle, and the storage plate is located below the discharge hole; an opening in the lower end of the gas channel is communicated to the upper surface of the storage plate, an opening in the upper end of the gas channel is communicated with either an air outlet of a compressed gas device or a pneumatic component. According to the pneumatic discharging mechanism provided by the invention, the power consumption is low in a pneumatic discharging process; furthermore, the pneumatic discharging mechanism is simple in structure, easy to process, long in life, wide in application scope, even to discharge, simple to control, small in size and low in space requirement, and is free from fault and maintenance.

The invention relates to a taper type anti-skidding strain clamp applied to an electric powder overhead line terminal or a segment strain insulator-string device.The taper type anti-skidding strain clamp comprises a conical shell with binaurally assembled U-shaped pull rings at the two sides and three anti-skidding thread clamping claws, a pawl spring, an even claw spring and a tension claw spring collar arranged inside the shell.The conical shell is externally provided with a groove, the large head end surface of the shell is provided with a pressure spring end cap.The U-shaped pull ring is provided with a lengthened screw thread for fine-tuning the lead sag.The invention makes a breakthrough in an international technical difficulty and uses the most advanced circumferential packing and clamping technology to replace the internationally acknowledged two-piece clamping and pressing technology, which is of epoch-making and revolutionary significance across the world.The triple-claw clamping technology fundamentally changes ills of power grid powder transmission and distribution cables such as slippage, core loosening and the like due to two-piece cambered surface splint clamping.Being capable of solving the long-standing international defect, the invention brings unmeasurable economic benefits to the development of international power grid powder transmission and distribution.

The invention relates to a big slewing ring bearing three guide post worm gear screw lifting vertical type coil winding machine, comprising a lifting system and a winding slewing system connected with the lifting system, wherein the lifting system comprises a lifting base, three or four worm gear screw lifters which are fixed on the lifting base and move on the lead screws, and a lifting driving device which drives the worm gear screw lifters to lift; the winding system comprises a slewing face plate connected with the lifting base by the big slewing ring bearing, a big gear fixed on the lower part of the slewing face plate, a small gear meshed with the big gear, a slewing reducer and a variable frequency main motor; the slewing reducer and the variable frequency main motor are directly connected with the small gear. The invention has the advantages of high efficiency, multifunction, stable running, high automatization control level, easy operation, fault-free, correct number of turns of the coiling and low manufacturing cost, etc.

The extraction of copper from waste etching solution of circuit boards in chloride system includes: a electrolysis device containing a electrolytic vessel divided into cathode region and anode region by diafragm material, addition of waste etching solution into the cathode region, addition of chloride salts and elementary substance or compound accessory ingredient which reacts with chlorine as conducting medium, deposition of copper on the cathode and reaction of accessory ingredient with chlorine to form stable chloride in the anode region. Because the individual electrolytic vessel is divided into cathode region and anode region by slightly permeable diafragm, the electrodeposition of copper will progress equably in a large range of cathode current density, corresponding reactions of chlorine from electrolysis with added Mg, Al, Zn, Fe etc. will also occurs in the anode region avoiding the emission of chlorine above the anode.

The invention discloses an automatic ladle covering and uncovering system for metal smelting. The system comprises a ladle cover and a ladle covering and uncovering mechanism, wherein an elevating rolling shaft is arranged on a cylinder cover; the ladle covering and uncovering mechanism is provided with a mobile platform; and a taper slide which contacts the elevating rolling shaft is arranged onthe mobile platform. Due to the adoption of the technical scheme of the invention, the technical problems of unrealizable autonomous operation, unstable working state, easy fracture leading to major accidents and the like of steelmaking process in which rails of working positions for hoisting a finery are vertical to one another are effectively solved. The automatic ladle covering and uncovering system for the metal smelting also has the following advantages of: capacity of successfully solving a 'T-shaped' environment formed by a smelting furnace or a rotary furnace and the finery, smart design, compact structure, high reliability, high suitability for severe occasions, particularly for steelworks, flexibly changeable structure form, high automation degree, capacity of greatly reducing work labor intensity, low failure rate and no maintenance.

The invention discloses a circular paper pressing-in device for combined fireworks. The circular paper pressing-in device includes a paper roll releasing mechanism and a paper roll receiving mechanism which are arranged oppositely and match each other; and a circular paper stamping mechanism and a circular paper pressing-in mechanism are successively arranged between the paper roll releasing mechanism and the paper roll receiving mechanism along a paper advancing path. The circular paper pressing-in device can automatically complete pressing-in of paper of the combined fireworks, is high in working efficiency, can level the circular paper, is high in assembly quality, is reliable in working, and can avoid failures.

The invention relates to a sample gas processing detection system and a sample gas processing detection method for a on-line analysis meter. The detection system comprises a sampling valve, a water seal washing tank, a cooler, an oxygen analyser and a Venturi tube which are sequentially connected. The method comprises the following steps of: (1) feeding sample gas to the water seal washing tank to wash; (2) conveying the washed sample gas to a cooler and sending out the chilled and dehydrated sample gas from the upper part of the cooler; and (3) feeding the dehydrated sample gas into the oxygen analyser, discharging the sample gas through the Venturi tube after analysing the oxygen content. The water seal washing tank is adopted to remove dust and the cooler is adopted to dehydrate, so that pulverized coal and moisture in the sample gas are effectively removed, the measurement accuracy of the oxygen analyser is ensured and the guarantee is provided for normal production.

Provided is a wear with a pair of gloves enabling holding the gloves and attaching/detaching the gloves if necessary, comfortably wearable for a long time, and excellent in portability, waterproof property and coldproof property. This wear has a wear main body 11 forming right and left sleeve parts 11a, glove holding parts 12 having holding opening parts 12a in the vicinity of the lower parts of sleeves 13 of the sleeve parts 11a, and the gloves 14 capable of being held in the glove holding parts 12 in freely taking in and out manner. Part of the glove opening part 14a to insert the fingers into is attached to the periphery of the holding opening part 12a of the glove holding part 12.

The invention provides a fault detection circuit for a master control panel and a refrigerator. The fault detection circuit for the master control panel comprises a detection instruction receiving module, a maintenance control panel and a load drive circuit, wherein the detection instruction receiving module is arranged on the master control panel of the refrigerator and used for receiving a fault detection instruction; the maintenance control panel is connected to the detection instruction receiving module and used for receiving a fault detection instruction from the detection instruction receiving module and sending a starting instruction or a closing instruction to the load drive circuit according to the fault detection instruction to control the work state of the load drive circuit; the load drive circuit is connected to the master control panel and the maintenance control panel, when the work state of the load drive circuit is consistent with a control result of the opening instruction or the closing instruction sent by the maintenance control panel, the master control panel is fault-free, and otherwise, the master control panel is malfunctional. With the adoption of the technical scheme, whether the mater control panel is malfunctional can be judged quickly and accurately, the phenomenon that the mater control panel is maintained and repaired blindly when the refrigerator breaks down is avoided, and the maintenance time is saved.

The invention discloses an automatically covering/uncovering system of a steel ladle. The automatically covering/uncovering system of the steel ladle comprises a steel ladle cover and a steel ladle covering/uncovering mechanism, wherein a trunnion is arranged on the steel ladle cover and in the outwards extending direction of a steel ladle cover body; and in the covering/uncovering process, the trunnion is contacted with the steel ladle covering/uncovering mechanism. The technical scheme provided by the invention can effectively solve the technical problems of mutual interference, unavailable normal operation, various parts, complicated structure, high error rate, high manufacturing cost and the like of an automatically covering system. The automatically covering/uncovering system of the steel ladle has the advantages of delicate design, compact structure, high reliability, capacities of flexibly changing the structural forms and meeting the requirements of different steel shops, high automation degree, greatly reduced labor intensity of workers, low failure rate, and basically no failure and no maintenance in one year.

The invention relates to an air chamber-type press filter-used diaphragm plate, which comprises a diaphragm plate, wherein the diaphragm in the diaphragm plate is of the flaky silicon gel diaphragm; the back surfaces of the four corners of the flaky silicon gel diaphragm are provided with a boss-type liquid out passage and a boss-type liquid washing passage; a boss-type air passage is arranged between the boss-type liquid out passage and the boss-type liquid washing passage; a sealing surface of a plate core of the diaphragm plate is provided with an air hole that is communicated with a core cavity of the plate core; the plate core is provided with a boss-type liquid washing passage and a boss-type liquid out passage; the core surface of the plate core is provided with three or more than three bosses that are distributed around a liquid inlet of the plate core; and the boss-type liquid out passage, the boss-type liquid washing passage and the boss-type air passage are respectively spliced and matched with a liquid outlet, a liquid washing hole and the air hole that are arranged on the surface of the plate core. The air chamber-type press filter-used diaphragm plate has the advantages that: 1, the adverse effect to the mouthfeel of wine can not be caused; 2, the sealing is reliable, and the corrosion resistance is good; 3, the extrusion deformation between a filter plate and the diaphragm can be avoided, and the diaphragm can be prevented from being broken due to the extrusion; 4, the hidden air passage can not consume material and does not have trouble.

The present invention relates to a semiconductor device, a unique ID of the semiconductor device and a method for verifying the unique ID. Thus, original data (bit string) having 127-bit length [126:0] is inputted at step S1 . Then, it is determined whether the number of bits of ''1'' in the bit string [126:0] inputted at the step S 1 is more than the half of the bits of the bit string (that is, not less than 64) or not at step S2 . When the number is not less than 64, the process proceeds to step S3 . At the step S3 , the bit string [126:0] is inverted and an invert bit [127] is set to ''1''. Then, the process proceeds to step S5 . At the step S5 , the fuse corresponding to the bit string [126:0] and the bit [127] are cut by LT.

The invention discloses a mobile phone supporting RMVB video file playing, which comprises a digital signal processor (DSP) decoding chip and a base-band integrated circuit (BBIC), wherein the DSP decoding chip is communicated with the BBIC by a serial peripheral interface (SPI); and the DSP decoding chip and the BBIC drive a display screen by CCIR interfaces. A 1-0 interface of the DSP decoding chip is connected with a 2-0 interface of the BBIC, wherein the 1-0 interface and the 2-0 interface are in charge of CS, CLK, DI and DO of SPI communication; a 1-1 interface of the DSP decoding chip and a 4-1 interface of a Sensor are connected with a 2-1 interface of the BBIC together, and the 1-1 interface, the 4-1 interface and the 2-1 interface are the CCIR interfaces. A user can directly download an RMVB file in the mobile phone to play and does not need format conversion.