11results about How to "Resolve volatility" patented technology

The invention relates to the technical field of rectification, in particular to a balanced full-automatic separation control method for a rectifying tower system, the rectifying tower system comprises a rectifying tower I. The control method comprises the following steps: carrying out material balance control and gas-liquid balance control on the rectifying tower I. The gas-liquid balance control is used for controlling the reflux quantity of a material refluxed into the rectifying tower I; the material balance control comprises the following steps: detecting the actual feeding flow of the rectification tower I and the actual liquid level value of a first reflux tank corresponding to the rectification tower I, and calculating and controlling the flow of the material extracted from the tower top of the rectification tower I in real time by combining the set value of the component extracted from the tower top of the rectification tower I and the density of the component extracted from the tower top. Through the preparation method, the stability and the efficiency of a rectifying tower system are improved, and the energy consumption cost and the product volatility problem are reduced.

The invention relates to the technical field of press heat dissipation, in particular to a press storage location temperature control method based on a PI D algorithm, and the method comprises the steps: 1, collecting a real-time temperature signal of a press storage location through a temperature sensor when the press storage location works normally, and transmitting the real-time temperature signal to a PLC control unit; 2, the temperature signal is fed back and transmitted to a PID controller through a PLC control unit, the PID controller outputs a control signal to regulate and control the rotating speed of a side face storage location fan of the press, and meanwhile storage location temperature information of the side face fan is collected and fed back to the PLC control unit; and 3, when the temperature of the storage location does not reach the parameter value set by the user, the PID controller outputs a control signal to the electric ball valve, the electric ball valve controls the opening degree of the ball valve according to the received control signal so as to adjust the water temperature, and meanwhile, the flowmeter records the real-time water inflow and feeds back a signal to the PID controller.

This invention discloses a boost DC bus voltage matching system for a motor inverter with dual high-voltage battery packs, comprising a battery management system, battery pack A, battery pack B, main negative contactor R2, main positive contactor R3, main negative contactor R4, a first voltage sensor, a first current sensor, a second voltage sensor, a second current sensor, a third voltage sensor, a vehicle control unit, a generator control module, an inverter, a generator, a relay Rb, current sensors a1, b1, and c1, a DC link capacitor bank CDC, a power inverter module, a motor controller, current sensors a2, b2, and c2, and a traction motor. The invention features a highly integrated hardware architecture, effectively reducing system cost and space occupation, enabling seamless battery pack switching during driving, effectively suppressing surge current, protecting high-voltage components and ensuring power stability, improving system fault tolerance, and enhancing the operational reliability of the high-voltage system.

The present application discloses a gamma voltage adjustment method, a gamma voltage adjustment circuit and a display device. The gamma voltage adjustment method is used for displaying a picture after entering a variable refresh rate mode, and includes the following steps: when displaying the current frame, pre-storing the original driving data of the next frame, and calculating the refresh rate of the next frame; obtaining the target refresh rate in the variable refresh rate mode; obtaining the gamma compensation voltage corresponding to the next frame refresh rate; calculating the gamma driving voltage of the next frame according to the gamma compensation voltage and the gamma reference voltage of the next frame, and writing the compensated gamma driving voltage in the vertical blanking period of the current frame to drive the display of the next frame of the display panel. Under the same gray scale, the gamma driving voltage compensated by the gamma compensation voltage makes the brightness of the next frame refresh rate consistent with the brightness of the target refresh rate, thereby improving the problem of large brightness difference or flickering when the display panel displays at different refresh rates.

The application provides a refractory compression resistance detection device and method, and relates to the technical field of refractory detection. The detection device comprises a detection box body and an internal positioning assembly, a first heating assembly, a pressurizing assembly and a data acquisition assembly. The positioning assembly supports both ends of the sample to achieve suspended positioning through two positioning blocks. The heating assembly comprises a first heating device that can be lifted and is in contact with the surface of the sample to heat. The pressurizing rod of the pressurizing assembly vertically penetrates the heating device to press the center of the sample. The data acquisition assembly monitors the pressure, temperature and deformation in real time. The device realizes synchronous thermal loading through the cooperative work of the heating and pressurizing assemblies, avoids the thermal history interference problem caused by the separation of heating and pressurizing in the traditional method, can truly simulate the service state of the refractory in the high-temperature industrial environment, and provides accurate data support for the high-temperature compression resistance evaluation.

The utility model relates to a composite high polymer material head-up display cold light mirror and a mould thereof, the cold light mirror comprises a cold light mirror body and supports, the supports are arranged on the left side and the right side of the cold light mirror body, each support comprises a bottom plate, a side fixing plate and a rotating shaft, the bottom plates are fixed at the bottoms of the left side and the right side of the cold light mirror body, and the side fixing plates are fixed on the rotating shafts. The side fixing plates are fixed to the outer side of the bottom plate and located on the side edges of the left side and the right side of the cold light mirror body respectively, the rotating shafts are fixed to the side edges of the outer sides of the side fixing plates, and the cold light mirror body and the support are integrally formed. The cold light mirror solves the problem that the cold light mirror is difficult to adopt a rotating shaft structure, and the cold light mirror body and the support can be integrally formed.

The utility model relates to a kind of gas inlet structure of gas detector.The gas inlet structure includes fairing, fairing has installation cavity, and fairing is equipped with the gas inlet with installation cavity intercommunication, and fairing inside is equipped with the gas dispersion net opposite with gas inlet, and gas dispersion net is densely covered with multiple gas dispersion holes.Fairing inside is equipped with gas diffusion structure on the other side of split dispersion net, and gas diffusion structure is in the shape of "hourglass", and gas diffusion structure includes first conical cylinder and second conical cylinder, and the small end of first conical cylinder and the small end of second conical cylinder are oppositely arranged, and gas diffusion structure has the center gas hole of intercommunication first conical cylinder and second conical cylinder.The big end of first conical cylinder is set to gas dispersion net for gas to enter, and the big end of second conical cylinder is used to set to the gas sensor inside gas detector for gas diffusion to the surface of gas sensor.Gradually buffer and disperse gas, avoid turbulent flow on the surface of gas sensor.

The application relates to the technical field of metal 3D printers, and discloses a pressure-controllable metal printer, which comprises a forming mechanism, a driving mechanism and a pressure control mechanism. The forming mechanism comprises a cylinder body and a printing component movably attached to the inner wall. The driving mechanism penetrates through the cylinder body to drive the printing component to ascend and descend. The pressure control mechanism is composed of an air pressure control bin and a pneumatic sealing ring. A cavity is formed between the air pressure control bin and the cylinder body, and pressure balance is implemented. The application forms a cavity through the air pressure control bin and the pneumatic sealing ring and dynamically balances pressure, solves the problems of uneven pressure and fluctuation caused by the traditional air pipe common pressure method, has the advantages of improving the timeliness and control accuracy of pressure balance adjustment, reducing pressure fluctuation in the printing process and improving the forming quality.

The invention discloses a power grid voltage control method and system based on fixed time distributed optimization. The method comprises the following steps: firstly, acquiring power distribution network data containing distributed photovoltaic; secondly, establishing a linearization power flow model based on the node admittance matrix, and determining a linear mapping relation between photovoltaic node voltage and reactive power injection; then, a convex quadratic programming optimization model with the minimum sum of node voltage deviations as a target is constructed, and inverter reactive capacity and node voltage safety constraints are included; then defining a local state variable at each photovoltaic node, and constructing a fixed time distributed control law containing gradient coordination, reactive power descending direction updating and constraint projection; and finally, performing integral operation on the control law through short-range communication interaction information of neighbor nodes, and updating reactive instructions of the inverter in real time. The method has the advantages of fixed time convergence and low cost, voltage fluctuation can be effectively suppressed, the method is suitable for power distribution network voltage coordination control under the whole county photovoltaic background, and the system operation stability is improved.

The invention provides an antrodia camphorata microbial multi-effect feed additive and a preparation process thereof, and relates to the field of feed additives. A formula of the multi-effect feed additive based on the antrodia camphorata microbial flora comprises the following components in percentage by weight: 20%-30% of antrodia camphorata fermentation liquor which comprises 2%-4% of triterpenoids and 1.5%-3% of polysaccharide substances. By adopting a dynamic temperature control technology, the problem of fluctuation of active ingredients of antrodia camphorata in the fermentation process is effectively solved, the generation of triterpenoids and polysaccharides is maximized by strictly controlling the gradual increase of the fermentation temperature from 25 DEG C to 35 DEG C and keeping the fermentation time for 72 hours, and the accurately-controlled fermentation process has the advantages that the production efficiency is greatly improved, and the production cost is reduced. According to the method, the stability and uniformity of active components in fermentation liquor and fermentation residues are ensured by combining subsequent freeze drying and crushing treatment, and in addition, the component concentration is accurately detected and adjusted through a high performance liquid chromatography technology, so that the quality consistency of the product is further ensured.

The present application relates to rectification technical field, particularly to a kind of rectification tower system balance full-automatic separation control method, rectification tower system includes rectification I tower, control method includes to rectification I tower is carried out material balance control and gas-liquid equilibrium control, gas-liquid equilibrium control is used to control the amount of backflow of material backflow to rectification I tower;The material balance control includes: detecting the actual feed flow of rectification I tower and the actual liquid level value of the first reflux tank corresponding to rectification I tower, in combination with the overhead take-off component set point of rectification I tower and the overhead take-off component density, the overhead take-off material flow of rectification I tower is calculated and controlled in real time.By the method, the stability and efficiency of rectification tower system are improved, and the energy consumption cost and the volatility problem of product are reduced.