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108results about How to "Avoid production loss" patented technology

Glue pressing device for wood furniture processing

The invention discloses a glue pressing device for wood furniture processing. The glue pressing device comprises a supporting base, the outer walls of top four corners of the supporting base are all connected with vertically-arranged supporting columns through bolts, the top outer walls of the four supporting columns are all connected with one same horizontally-arranged supporting top plate through the bolts, the top central outer wall of the supporting top plate is connected with a glue storage box through the bolts, the outer wall of one side of the bottom of the glue storage box is connected with a glue guide flexible pipe through the bolts, and the bottom central outer wall of the supporting top plate is connected with a vertically-arranged hydraulic cylinder through the bolts. According to the glue pressing device for the wood furniture processing provided by the invention, by means of the manners that electric stretching and contracting rods and fixing clamping plates are provided and the fixing clamping plates are driven to move by the electric stretching and contracting rods, wood furniture plate materials of different sizes can be fixed, the quite stable fixing effect is achieved, and the situation that the plate materials are loosened to affect the glue pressing effect in later glue pressing is avoided.
Owner:湖北乔木森家具有限公司

Identification method of rice bacterial leaf blight resistance and application of miRNA397a genetic locus

The invention discloses an identification method of rice bacterial leaf blight resistance and an application of miRNA397a genetic locus, and belongs to the field of biotechnology. The identification method comprises the following steps: inoculating paddy rice to be detected and infected paddy rice; separating miRNA genes of the paddy rice to be detected and the infected paddy rice; detecting the expressions of the miRNA genes; and determining whether the paddy rice to be detected is resistant to bacterial leaf blight. The invention further discloses the application of the miRNA397a genetic locus in identification of rice bacterial leaf bright resistance. The invention uses the transcription of the miRNA397a gene locus to identify whether paddy rice is resistant to bacterial leaf blight, and achieves success. The transcription of the miRNA397a gene locus provided by the invention is detection based on expression level, so as to avoid misjudgment caused by bacterial leaf blight resistance gene silencing; and the identification method provided by the invention does not use the conventional DNA linkage tracer method, so as to avoid misjudgment caused by untightness of DNA linkage, improve the detection accuracy and avoid unnecessary production loss.
Owner:JIANGHAN UNIVERSITY

Method and device for tracking motor speed by frequency changer and frequency changer

The invention discloses a method and a device for tracking motor speed by a frequency changer and the frequency changer. The method comprises the following steps: step one, obtaining the initial tracking frequency f0 and tracking direction of speed tracking; step two, carrying out demagnetizing treatment on a motor, and blocking PWM output when the frequency changer is in a demagnetizing period; step three, applying a rotating voltage on the motor, and maintaining for a period of time; step four, in the period of speed tracking, using the initial tracking frequency f0 as tracking frequency, outputting an output voltage according to a preset speed tracking V / F curve according to the tracking frequency, continuously changing the tracking frequency and output voltage of the frequency changer,then detecting the stator current of the frequency changer, and judging whether the current active component direction of the stator current changes, if the current active component direction changes, obtaining the actual operating speed of the motor according to the tracking frequency of changing switching points so that the output voltage is increased to a normally controlled output voltage value. The method is high in detection efficiency and more accurate and stable. The device and the frequency changer comprise the method.
Owner:SHANGHAI NOARK ELECTRIC

Online monitoring system and method for core plate of membrane filter board

The invention relates to an online monitoring system and a method for a core plate of a membrane filter board, and the system comprises an optical fiber grating demodulator, an optical fiber coupler, a processor and an optical fiber grating sensor assembly, wherein the optical fiber grating sensor assembly is arranged in the core plate, a light source generates an optical signal, the optical signal is transmitted to the optical fiber grating sensor assembly through the optical fiber coupler, after the optical signal is interacted with the optical fiber grating, a reflected light gets in the optical fiber grating demodulator through the optical fiber coupler, the optical fiber grating demodulator is connected with the processer, the processer calls a core plate damage database to analyze the damage degree, then establishes a 3D model and outputs the damage distribution of the core plate. According to the method, the system and the method provided by the invention can assess the healthy condition of the core plate and publish an early warning in time, the core plate fault and hidden danger can be accurately and quickly eliminated, the safety incident and production loss can be avoided, and the benefits of the equipment manufacturers and the users can be ensured.
Owner:SHANDONG UNIV

Control method, central controller and system of wind turbine

InactiveCN101994647AReduce downtimeEnsure safe power generationWind motor controlEngine fuctionsEngineeringTurbine
The invention provides a control method, central controller and system of a wind turbine. The control method of the wind turbine comprises the following steps: measuring the measured value containing the position signal Pact, of each blade of the wind turbine; according to the position measured value of each blade, outputting the preset values containing the position preset signal Pset, wherein the preset values are used to control the blades; according to the measured value of each blade, outputting the delay speed of two adjacent blades; and according to the measured values and delay speed of the blades, correcting the preset values and outputting the corrected values containing the position corrected value P'set, wherein the corrected values are used to control the blades of the wind turbine. The controller of the invention contains a control unit, an asymmetric prediction unit and an asymmetric adjustment unit, wherein the control unit can output the preset values according to the measured values of the blades; the asymmetric prediction unit can output the delay speed of two adjacent blades according to the measured values; and the asymmetric adjustment unit can correct the preset values. The central controller of the invention is connected with the pitch controller of the wind turbine, thus the asymmetric fault of the wind turbine can be effectively prevented, the cost is low and the effect is good.
Owner:威能极公司

Equipment predictive maintenance method and device

The invention relates to the technical field of energy, and provides an equipment predictive maintenance method and device, and the method comprises the steps: obtaining a knowledge graph according tothe effective information of target equipment needing predictive maintenance, wherein the effective information at least comprise historical data, expert experience and an operation record; processing the knowledge graph to obtain a fault tree corresponding to the knowledge graph; processing the fault tree by adopting a Monte Carlo model to obtain a function relationship between the fault of thetarget equipment and the fault reason; and performing preset simulation operation on the function relationship to obtain the fault probability of the target equipment. According to the method, the knowledge graph is acquired by taking the effective information of the equipment as basic data, modeling is performed on the basis of the knowledge graph, and the simulated fault probability is obtainedin cooperation with large-scale simulation prediction; predictive maintenance of the equipment is realized, the downtime is reduced, the production loss caused by equipment faults is effectively avoided, and the method is accurate in prediction and simple and reliable in operation processing.
Owner:ENNEW DIGITAL TECH CO LTD

Oxygen partial pressure supply system

The invention discloses an oxygen partial pressure supply system. The oxygen partial pressure supply system comprises an oxygen compressor set and a depressurization station; and the oxygen partial pressure supply system is characterized in that the oxygen compressor set comprises a first oxygen compressor, a second oxygen compressor, a third oxygen compressor and a fourth oxygen compressor. The four oxygen compressors are connected with a medium pressure oxygen pipe through pipes; an oxygen turbocompressor is further connected to the medium pressure oxygen pipe to press out supplied 2.0 MPa oxygen, the medium pressure oxygen pipe is then connected to the depressurization station for oxygen depressurization, and the depressurized oxygen is conveyed to be used for steelmaking; and meanwhile, the oxygen compressor set is further provided with a pipe to be connected to a low-pressure oxygen pipe to press out the oxygen which is 0.8-1.0 MPa and 10000 m<3>/h, and the oxygen is directly supplied to iron making and steel rolling. According to the oxygen partial pressure supply system, a special low-pressure oxygen pipe is arranged, depressurization supply after oxygen pressurization is not needed, the oxygen supply procedure is simplified, energy consumption is effectively reduced accordingly, the production cost is reduced, energy conservation and environment protection are achieved, the safety of the low-pressure oxygen pipe is higher, and the running period is longer.
Owner:SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD

Switch cabinet temperature measurement control and adjustment device

The invention discloses a switch cabinet temperature measurement control and adjustment device, which comprises a central control processor. The central control processor is respectively connected with an alarming circuit, a relay control circuit, an address encoder, an outer display screen, an air conditioning system, a temperature sensor and a temperature collector, and the temperature collector is connected with the contact temperature sensor. According to the switch cabinet temperature measurement control and adjustment device, the structure is simple; temperature of each joint and each contact can be monitored in real time; real-time temperature exceeding alarming is carried out; temperature of joints and contacts inside the switch cabinet or a ring main unit and the like can be monitored in real time; temperature rise conditions of the joints and the contacts are known; temperature inside the cabinet can be adjusted reasonably; the temperature condition of each contact can be known clearly; and in the case of over high temperature, circuit conditions can be quickly controlled, and accidents such as the damaged switch cabinet contact and large-area power failure caused as the joints or the contacts are over heated can be prevented from happening.
Owner:ZAOZHUANG POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1

Device and method for monitoring oil film thickness of in-use ball mill sliding bearing

A device for monitoring the oil film thickness of an in-use ball mill sliding bearing comprises a data acquisition process part, a data processing and transmitting part, and a data analyzing and controlling part. The data acquisition process part is connected with the data processing and transmitting part 2; the data processing and transmitting part is connected with the data analyzing and controlling part; and the data analyzing and controlling part is connected with the data acquisition process part. By adoption of a method for monitoring the oil film thickness of the in-use ball mill sliding bearing, real-time monitoring of the oil film thickness in the working process of the ball mall sliding bearing can be achieved; meanwhile, real-time data relating to friction in the working process of the ball mill can be extracted. Weak current is adopted for acquisition in the whole monitoring process, the device can keep working after installation, and thus influences on manufacturing operation of the device are avoided; by adoption of the measuring method and algorithm, accuracy and reliability of the data can be guaranteed; in addition, the method overcomes the shortages of other traditional detection methods and has the function of self-learning. The device and method provide more reliable evidences for maintenance of the ball mill and analysis of friction faults.
Owner:西安景辉信息科技有限公司

Convenient-to-position high-applicability glue pressing device for furniture processing

The invention discloses a convenient-to-position high-applicability glue pressing device for furniture processing. The convenient-to-position high-applicability glue pressing device comprises a machine shell and a table frame, two electric telescopic rods are fixedly mounted in the machine shell, a mounting frame is fixedly mounted at the ends, away from the machine shell, of the electric telescopic rods, and limiting columns are fixedly mounted at the top and the bottom of an inner cavity of the mounting frame correspondingly; telescopic springs are fixedly mounted at the outer sides of the limiting columns, a glue pressing roller brush is fixedly mounted at the inner side of the mounting frame, sliding blocks are fixedly mounted at the opposite sides of the machine shell, two track grooves are formed in the table frame, a working plate is movably mounted at the inner side of the table frame, and micro electric telescopic rods are fixedly mounted in the opposite sides of the table frame; and plates needing to be subjected to glue pressing are conveniently fixed through the installation of clamping plates so as to prevent the plates from falling off in the glue pressing process, acontrol box controls the micro hydraulic telescopic rods to stretch out and draw back, the hydraulic telescopic rods at the opposite sides of the table frame apply acting force to the clamping plates,the clamping plates at the two sides extrude and fix the plates in the opposite directions, and therefore the plates can be effectively prevented from falling off.
Owner:浙江九和家具有限公司

Constant pressure regulating valve

The invention relates to a constant pressure regulating valve. The regulating valve comprises a valve body, a valve cover, a sealing diaphragm, a valve core bar and a valve plug, wherein the valve core bar is slidably arranged in a hollow installation pipe in a sealing mode; the center part of the valve core bar passes through an installation hole of the central part of the sealing diaphragm and is hermetically and fixedly connected with the sealing diaphragm; the valve plug is fixedly arranged at one end of the valve core bar close to a liquid outlet; an outer sealed connection part and an inner sealed connection part are arranged between the valve core bar and the hollow installation pipe; a chamber is formed between the outer sealed connection part and the inner sealed connection part; a detection hole communicated with the chamber is formed on the hollow installation pipe; and the detection hole is connected with a detection device through a detection pipe. The problem that as the sealing performance of an air chamber of the valve in the prior art is deteriorated, air leakage cannot be detected in time is solved. The constant pressure regulating valve can timely detect the air leakage of the air chamber, and is particularly suitable for the production process of beer, beverages, medicaments and other hygiene products.
Owner:上海远安流体设备科技有限公司

Movable sealing position compensation device

The invention discloses a movable sealing position compensation device. A piston rod is connected with an air cylinder, a long rod and a piston are arranged in the air cylinder, the upper portion of the air cylinder is provided with a small hole, one end of the long rod is connected with the piston, and the other end of the long rod penetrates through the small hole and is connected with a sealingring; the sealing ring is connected with a rubber ring and arranged in a gland, a space is reserved between the rubber ring and the gland, it is guaranteed that the sealing ring has the enough air pressure to maintain the sealing state when the piston moves, and the space communicates with a space under the piston in the air cylinder through a hollow pipe; a simple safety valve is installed at anopening of the bottom of the air cylinder, and it is guaranteed that the air pressure can not be too large; and an air core is arranged at the joint of the hollow pipe and the lower portion of the piston of the air cylinder. The movable sealing position compensation device has the beneficial effects that the leakage problem caused by wear generated when the sealing ring does movable sealing reciprocating motion can be effectively solved, then the purpose of protecting the sealing ring is achieved, production losses are avoided, smooth conduction of whole production is facilitated, the structure is relatively simple, and the good practicability is achieved.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY +1
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