19results about How to "Improved pressure stability" patented technology

The invention discloses an intelligent pressure reducing valve and a remote dynamic control system, and relates to the field of pressure reducing valve control, and the intelligent pressure reducing valve comprises a main valve body arranged on a water pipeline, a digital pressure stabilizing controller used for locally operating and setting a target pressure value, and a sensor module used for collecting pressure and flow real-time data, the electric pilot valve is used for receiving a control signal of the digital voltage stabilization controller and adjusting the opening degree of the main valve body; closed-loop control logic is adopted in the whole working process, accurate and stable control over the outlet pressure is achieved through the cooperative working mode of real-time collection of the sensor module, analysis and judgment of the digital pressure stabilization controller and dynamic adjustment of the electric pilot valve, and the core technical effects of working condition self-adaption, accurate and stable pressure and intelligent linkage operation and maintenance are achieved. Data are collected in real time through the front-end pressure / flow sensor and the rear-end pressure / flow sensor, when the rear-end pressure deviates from the target pressure value, the opening degree of the electric pilot valve is dynamically adjusted, pressure drift and oscillation of a traditional valve are avoided, and the pressure stability of a water supply pipe network is remarkably improved.

This utility model discloses a water-cooled vacuum capacitor, comprising: an insulating shell and two electrode groups. Each electrode group includes an electrode disk and an electrode ring group fixed to the electrode disk. The insulating shell is sealed and connected to the two electrode disks to form a vacuum chamber. The two electrode ring groups are coupled and housed within the vacuum chamber. At least one electrode disk has a water-cooling chamber inside, and also has an inlet and an outlet communicating with the water-cooling chamber. By incorporating a water-cooling chamber within at least one electrode disk, this utility model can directly cool the electrode group from the heat source, significantly improving heat dissipation efficiency, enhancing the voltage withstand stability of the vacuum capacitor, reducing the impact of high temperature on capacitance, thereby ensuring impedance matching of the equipment, improving the electrical performance stability of the vacuum capacitor under high-frequency conditions, and meeting users' requirements for high current and voltage withstand stability of vacuum capacitors.

The application discloses a steam back pressure stabilizing method, device, equipment and medium, comprising: obtaining the outlet steam pressure and the inlet steam flow of a target steam turbine, and obtaining the standby steam flow of a target heat user; the target steam turbine provides required steam for the target heat user; determining the main adjustment parameter of the speed regulating valve of the target steam turbine according to the outlet steam pressure and the set outlet given pressure; determining the secondary adjustment parameter of the speed regulating valve according to the standby steam flow and the inlet steam flow; adjusting the opening of the speed regulating valve according to the main adjustment parameter and the secondary adjustment parameter. The application adjusts the opening of the speed regulating valve of the steam turbine based on the outlet steam pressure and the inlet steam flow of the target steam turbine, and the standby steam flow of the target heat user, so that the matching degree of the outlet steam pressure of the target steam turbine and the standby steam flow of the target heat user is improved, and the steam system pressure stability is improved in the case that the heat user consumption fluctuates greatly.

The utility model discloses a gas sensor packaging structure and a gas concentration detector, the gas sensor packaging structure comprises a packaging shell and a sealing plate; a detection cavity is formed in the packaging shell, an air inlet and an air outlet are formed in one side of the packaging shell, a glue filling groove is formed in the other side of the packaging shell, and a detection opening is formed in the bottom of the glue filling groove; the detection cavity is sequentially communicated with an air inlet channel, a detection channel and an air outlet channel, the air inlet channel is communicated with the air inlet, the detection channel is communicated with the detection port, and the air outlet channel is communicated with the air outlet; the sealing plate is arranged in the glue pouring groove, an induction assembly is fixed to the sealing plate, the induction assembly is arranged towards the detection opening, and the sealing plate covers the detection opening. The utility model can solve the problem of long-term stability of the sensor.

The application discloses a high-stability constant-pressure brush device and a generator, which comprise an outer cylinder, an inner cylinder, a brush rod and an elastic piece. The inner cylinder is sleeved in the outer cylinder, a sealed inner cavity is formed between the outer cylinder and the inner cylinder, the outer cylinder is provided with an inlet and an outlet which are communicated with the inner cavity, and the inlet and the outlet are used for circulating fluid medium to dissipate heat. The brush rod is slidably installed in the inner cylinder, the elastic piece is arranged in the inner cylinder, one end of the elastic piece abuts against the brush rod, and the other end of the elastic piece abuts against the brush rod, so as to provide constant axial compression force to the brush rod. The fluid circulation inner cavity formed by the outer cylinder and the inner cylinder realizes efficient heat dissipation of the elastic piece and the brush rod, and high-temperature thermal recession is avoided. The elastic force of the elastic piece drives the brush rod to be in constant pressure contact, and the stability of the brush pressure is obviously improved.

This invention relates to the field of cable technology and discloses a composite cross-linked polyethylene insulated cable integrating signal and power transmission. The cable comprises, from the inside out, a composite core, an inner semi-conductive shielding layer, a composite cross-linked polyethylene insulation layer, and an outer semi-conductive shielding layer. The composite cross-linked polyethylene insulation layer is made by extruding and cross-linking raw materials containing the following parts by weight: 90-95 parts low-density polyethylene granules, 5.42-11.6 parts solid premix, and 0.7-2.0 parts liquid co-solution. The solid premix contains N,N'-m-phenylenebismaleimide and tetrabutyl titanate, and the liquid co-solution contains tetramethyltetravinylcyclotetrasiloxane and dicumyl peroxide. This invention anchors by constructing a coordination network, eliminates space charge and micropores in the insulation layer, improves withstand voltage, reduces signal attenuation, and ensures the long-term stability of the integrated power and signal transmission of the composite cable.

The utility model belongs to the technical field of diaphragm pneumatic valve, especially relates to a stable diaphragm pressing structure of pneumatic diaphragm valve diaphragm, including actuating mechanism casing, piston subassembly, spring, gas channel, the piston subassembly is connected swing axle, the lower extreme of swing axle is equipped with conical part, the below of conical part is equipped with diaphragm pressure axle, diaphragm pressure axle is used for the diaphragm pressing of diaphragm, the periphery of conical part is equipped with a plurality of ball bearings, ball bearings are located in the ball bearing movable cavity of diaphragm pressure axle, and conical part passes through ball bearing pressing diaphragm pressure axle action, the utility model provides a stable diaphragm pressing structure of pneumatic diaphragm valve diaphragm, under the same condition, the utility model's pressure stability is higher, and the force is bigger.

The utility model discloses extrusion device drive mechanism, including extrusion device, the extrusion device sets up on the fixed plate, the injection rod of extrusion device sets up on the lifting plate, be provided with the guide rod on the fixed plate, the lifting plate sets up on the guide rod, be provided with two groups of screw rod subassembly between the lifting plate with the fixed plate, two groups of screw rod subassembly are located the both sides of extrusion device respectively, and two groups of screw rod subassembly synchronous drive lifting plate elevating along the guide rod, the screw rod power device of screw rod subassembly sets up on the lifting plate, and is located the bottom of lifting plate.

The invention discloses a double-line dry oil lubrication system and method for a high-temperature fan-shaped section roller bearing, the double-line dry oil lubrication system comprises an electric lubrication pump, the electric lubrication pump is connected with a parallel double-line main oil pipeline, and an electric / electromagnetic directional valve is arranged between the parallel double-line main oil pipeline and the electric lubrication pump; the parallel-connection double-line main oil pipeline is connected with the parallel-connection double-line branch oil pipeline, an oil supply branch pipe is arranged on the parallel-connection double-line branch oil pipeline, each flow of the oil supply branch pipe is provided with a group of double-line oil distributors, inlets of the double-line oil distributors are connected with outlets of double-line pumps, outlets of the double-line oil distributors are connected into oil injection holes of roller bearing seats through the branch pipes, and the oil injection holes of the roller bearing seats are communicated with the oil supply branch pipe. Two groups of oil injection holes are symmetrically formed in the roller bearing seat, two groups of oil outlet holes are further formed in the roller bearing seat, the two groups of oil injection holes and the two groups of oil outlet holes are symmetrically formed in the radial direction of the roller bearing seat, and the parallel double-line main oil pipeline and the parallel double-line branch oil pipeline are made of stainless steel pipes.

The utility model relates to water tank technical field especially relates to an expansion type water tank. Its technical scheme includes the box, the water inlet of being located at the top of box, the water outlet of being located at the bottom of box, still includes the fixed installation in the telescopic expansion box of box, installs the constant pressure module of expansion constant pressure to the expansion box of both sides of box, the constant pressure module includes the transmission case and pressure chamber that intercommunication, the pressure chamber and transmission case fill liquid, the transmission case in sliding installation has with expansion fixed connection of sealing plate of box. The utility model adopts constant pressure module and can provide stable unchangeable system pressure, compares with nonlinear air bag, avoids pressure fluctuation, makes system pressure keep constant on the set operating point, no matter how much expansion water volume is, avoids the risk that air bag pressure sharply climbs in high pressure area, also eliminates the hidden danger that low pressure area buffer is insufficient, improves system pressure stability greatly, can realize effective volume utilization more.

The utility model relates to a kind of papermaking coating systems, including raw material tank, raw material tank is used to accommodate coating;Feed sieve, feed sieve is connected with raw material tank by pipeline communication;Conveying pump, conveying pump is set on the pipeline between feed sieve and raw material tank;Transfer tank, transfer tank is connected with feed sieve by pipeline, transfer tank is used to accommodate, buffer coating;First-stage sieve, first-stage sieve is connected with transfer tank by pipeline, first-stage sieve is used to filter coating;Circulating pump, circulating pump is set on the pipeline between transfer tank and first-stage sieve, circulating pump is used to circulate and transport coating;Coating machine, coating machine is connected with first-stage sieve by pipeline, coating machine is used to be coated to the coating on the surface of raw paper;Second-stage sieve, second-stage sieve is connected with first-stage sieve by pipeline, second-stage sieve is connected with transfer tank by pipeline, second-stage sieve is used to filter coating;And first conveying pipeline, first conveying pipeline one end is connected on the pipeline between conveying pump and feed sieve, first conveying pipeline other end is connected in second-stage sieve.

This invention proposes a screw barrel accessory for high-speed, high- and low-pressure blown film extrusion equipment, applicable to blown film extruders. The screw includes a feed end and a discharge end at its two ends. Along the axial direction from the feed end to the discharge end, the screw sequentially features equal-depth screw groove sections, wavy gradient screw groove sections, a diamond sorting area, another wavy screw groove section, and a four-in, four-out multi-channel structure. This invention optimizes material plasticization, dispersion, flowability, and pressure control through a combination of wavy screw grooves, a dense tooth structure, a diamond sorting area, and a through-hole structure. The wavy and gradient screw grooves utilize a special structure to perform multiple shearing and kneading operations on the material. Simultaneously, the orderly arrangement of functional sections and the reasonable axial segment dimensions ensure smooth and stable screw operation, making it suitable for long-term continuous operation in high-speed, high- and low-pressure blown film production lines. This reduces the defect rate, improves overall production efficiency and economic benefits, and the integrated structural design enhances the overall strength of the screw.

The application discloses a gas circulation reaction control method based on pressure change rate feedforward and related devices, and relates to the technical field of automatic control of chemical processes, and comprises the following steps: acquiring pressure data in real time and calculating a pressure change rate, when the absolute value of the pressure change rate meets a preset trigger condition, determining a target opening degree adjustment amount of a pressure regulating mechanism according to a numerical interval where the pressure change rate is located, and generating a feedforward control instruction, the lead perception of the pressure change trend replaces the dependence of traditional PID feedback control on deviation accumulation, significantly improves the inherent response lag characteristic of the traditional control mode, and effectively reduces the triggering of the equipment surge protection. Meanwhile, when the negative downward pressure change rate meets a preset sudden drop condition, a decoupling compensation instruction is generated to control the gas discharge mechanism to increase the gas discharge amount, thereby realizing the cooperative linkage of pressure regulation and gas discharge, and optimizing the pressure stability of the system under severe fluctuation conditions.

The application discloses a wind-resistant grading ring of an extra-high voltage transmission line and relates to the technical field of transmission lines. Due to the action of wind force, the grading ring and the connecting and fixing position are loose, the center position of the grading ring and the insulator string is deviated in a strong wind day, and the grading ring cannot be used. The wind-resistant grading ring of the extra-high voltage transmission line is provided with inclined surfaces between side clamping blocks and inner hole plates. In the process of fixing and installing, after the bolts are tightened, the gap between the inner clamping blocks and the side clamping blocks is formed into a zigzag at the edge of the clamping plate. The zigzag gap is used to limit the sliding between the clamping plate and the inner clamping plate. In the process of use, compared with the friction force between the connecting positions after the bolts are fixed, the wind force is resisted, the stability is better, and the wind-resistant stability of the connecting position of the grading ring is improved.

The application relates to the technical field of measuring devices, and discloses a battery core thickness gauge, which comprises a mounting portion, at least one guide rod, a sliding frame and a telescopic pressure applying assembly. The guide rod is arranged on the mounting portion, and an air floating bearing is arranged on the guide rod in a sliding mode. The sliding frame is connected with the air floating bearing, and a detection head is arranged at the first end of the guide rod in the axial direction of the guide rod. The driving end of the telescopic pressure applying assembly is connected with the sliding frame, so that the sliding frame can reciprocate along the axial direction of the guide rod, the accuracy of measurement can be improved, and the operation is simplified.

The utility model discloses a heat conduction pipe capable of bearing pressure, and belongs to the technical field of heat conduction pipes. The heat conduction pipe capable of bearing pressure comprises a shell, and a liquid absorption core is arranged on the inner wall of the shell; the pressure bearing mechanism is arranged in the shell and comprises a supporting pipe, the upper end and the lower end of the supporting pipe are connected with the upper end and the lower end of the interior of the shell correspondingly, the interior of the supporting pipe is of a hollow structure, and the upper end and the lower end of the supporting pipe are sleeved with a first reinforcing block and a second reinforcing block correspondingly. A plurality of third reinforcing blocks are arranged on the outer side of the supporting pipe and located between the first reinforcing block and the second reinforcing block in a winding mode, the first reinforcing block, the second reinforcing block and the third reinforcing blocks are the same in shape and size, and the third reinforcing blocks are distributed at equal intervals. And the practical value is high.

The utility model provides a stock bin and storage equipment, and belongs to the field of material storage, the stock bin comprises a charging barrel, a hopper and a reinforcing structure, the top of the hopper is communicated with the bottom of the charging barrel, the reinforcing structure is arranged on the periphery of the hopper and comprises a base and a reinforcing frame, the reinforcing frame comprises a first ring beam, a second ring beam, a straining beam and at least two inclined supporting beams, the first ring beam and the second ring beam are coaxial and are sequentially arranged at intervals from top to bottom, the second ring beam is erected on the top of the base, the straining beams are evenly arranged around the axis of the first ring beam, and the top ends and the bottom ends of the straining beams are connected with the first ring beam and the second ring beam respectively. The inner edge of the top of the first ring beam is connected with the connecting portion of the charging barrel and the hopper, the two inclined supporting beams are arranged between the straining beam and the hopper, one end of each inclined supporting beam is connected with the straining beam, and the other end of each inclined supporting beam is connected with the outer wall of the hopper. Compared with the prior art, the technical problem that an existing stock bin has the design defects of insufficient stability and the like is solved.

This invention relates to the field of anode foil preparation technology, specifically to a composite anode foil based on an aluminum substrate and its preparation method, comprising the following steps: S1. Aluminum foil pretreatment; S2. Corrosion modification; S3. Medium-temperature thermal curing. This invention provides a chemical basis for the high-concentration, stable existence and uniform transport of titanium ions in the etching solution through a modified complexing agent; the modified etching solution enables the expansion and pore formation of the aluminum foil and the in-situ uniform anchoring of the TiO2 precursor on the inner wall of the pores; the modified formation solution achieves in-situ defect repair, effectively reducing leakage current and improving withstand voltage stability. The synergistic effect of the modified complexing agent, modified etching solution, and modified formation solution achieves a synergistic optimization between a significant increase in the specific capacitance of the composite anode foil and effective suppression of leakage current, significantly improving the overall electrical performance of the product while simplifying the process, and has good prospects for industrial application.

The utility model relates to a rotary hydraulic control system for a clay gun. A rotary hydraulic loop of the rotary hydraulic control system comprises a rotary control reversing valve, a first rotary hydraulic pipeline connected with a rodless cavity of a rotary hydraulic cylinder, and a second rotary hydraulic pipeline connected with a rod cavity of the rotary hydraulic cylinder, a pressure port of the rotary control reversing valve is connected with a first pressure oil branch pipe; the mud gun rotating hydraulic control system further comprises a pressure maintaining pipeline, the first end of the pressure maintaining pipeline is connected to the first pressure oil branch pipe in a bypass mode, the second end of the pressure maintaining pipeline is connected to the first rotating hydraulic pipeline in a bypass mode, and a hydraulic control one-way valve and a pressure maintaining control module used for controlling on-off of the hydraulic control one-way valve are arranged on the pressure maintaining pipeline. According to the mud gun, the first pressure maintaining pipeline is arranged, once the conditions that the pressure of the rodless cavity of the rotary hydraulic cylinder drops too fast and the like occur, the main valve element of the first hydraulic control one-way valve is controlled to be opened, hydraulic oil can be supplemented to the first rotary hydraulic pipeline, the pressure stability of the rodless cavity of the rotary hydraulic cylinder is improved, and the working reliability of the mud gun is guaranteed.