16results about How to "Avoid pressure fluctuations" patented technology

The utility model discloses a textile color fastness testing arrangement relates to color fastness testing arrangement technical field, and its technical scheme is: including frame component, be equipped with test drive assembly in frame component, test drive assembly top is equipped with test movable assembly, frame component top is equipped with test pressure assembly, and the beneficial effect of a kind of textile color fastness testing arrangement is: through electric push rod in test pressure assembly provides controllable driving force, cooperate pressure sensor and pressure display to realize the real -time monitoring and accurate adjustment of friction pressure, replace traditional pressure plate deadweight pressure mode, effectively avoid the pressure fluctuation caused by mechanical vibration, sample surface unevenness etc., ensure that actual friction pressure is consistent with preset value, greatly improve the accuracy and repeatability of test result, simultaneously, operator can adjust pressure value according to different textile types quickly, need not to replace pressure plate, and operation efficiency is significantly improved.

The application discloses a high-temperature gas safety valve with pressure relief protection and relates to the field of safety valves.The safety valve housing is provided with an inlet at the left side, and an outlet at the bottom; a pressure relief pipe is communicated with the right outer wall of the safety valve housing, a liquid cooling delivery box is fixedly installed at the lower end of the pressure relief pipe, a one-way gas outlet nozzle is installed at the right end of the pressure relief pipe, and is used for discharging gas. The high-temperature gas safety valve with pressure relief protection is provided with a pressure relief pipe and a multistage pressure relief mechanism, a one-way gas inlet assembly is used for guiding gas to enter step by step, a middle pressure relief assembly is used for buffering and decompressing, and a one-way gas outlet assembly is used for stably discharging, so that scalding hazards are further avoided; the heat-resistant sealing piece on the outer side of the disc, the synchronous linkage design of the opening mechanism and the elastic buffering effect of the buffering mechanism ensure that the valve is sensitive in action under high pressure, and the risk of jamming or failure is reduced.

The application relates to the technical field of multistage compression, in particular to a hydrogen pressurizing equipment based on a multistage compression technology, which comprises a plurality of series-connected pressurizing parts and a central control module for regulation and control. The application guarantees pressure stability in the pressurizing process by arranging pressure stabilizing pipes between the vortex pipes, so that the plurality of vortex pipes can be connected in series, and the central control module is arranged to accurately monitor the pressure of the pressure stabilizing chambers in the pressure stabilizing pipes and the compression chambers in the vortex pipes, accurately control the pressure state of each pressurizing part, accurately match the multistage pressurizing, and adjust the temperature of the internal compressed gas by cooperating with the cooling pipe layer, so that pressure fluctuation caused by gas temperature change is effectively avoided; the vortex compression structure effectively reduces the vibration and noise of the whole equipment, and the series connection of the pressurizing parts can be selected in number, so that the flexibility of the multistage compression is further improved.

The application relates to the technical field of throttles, in particular to a fishing-free throttle, which comprises a main body, slips, a connecting sleeve, a fishing head, a sealing cylinder and a sandproof cover. A plurality of slips are arranged in a ring shape on the main body. The connecting sleeve is arranged in the main body. The fishing head is inserted into the connecting sleeve and connected with the connecting sleeve. The connecting cylinder is arranged in the main body. The sealing cylinder is arranged on the connecting cylinder. The sealing cylinder is jointly arranged with the main body and is provided with a sealing gasket. The sandproof cover is arranged below the sealing cylinder. The valve core and the air nozzle are arranged in the sealing cylinder. The air nozzle is slidably connected with the sealing cylinder through a sealing ring. The air nozzle and the sealing cylinder are connected with a shearing spring. The valve core comprises a fixed core and a movable core. The valve core is divided into the fixed core and the movable core. When the pressure is reduced, the movable core is driven to move by the air nozzle to increase the throttling passage of the valve core, so that the fishing-free throttle is realized, and the yield of the oil and gas well can be ensured.

The invention discloses a drawer type descending feeding system which comprises a feeding sealing-tape machine, a drawer type descending feeding device, a drawer type descending feeding device and a drawer type descending feeding device. The slurry scraping structure is used for scraping attachments on the feeding adhesive tape; the supporting structure is used for supporting the feeding sealing-tape machine; the slurry scraping structure comprises an elastic mechanism used for controlling the position of a scraper and absorbing vibration through elastic force. The supporting structure comprises a pulley module used for moving and a supporting plate module used for supporting, and the supporting structure makes contact with the mounting face through one of the pulley module and the supporting plate module. Impact energy is absorbed through the elastic mechanism, the scraper is prevented from being damaged as much as possible, the service life of the scraper is prolonged, and constant contact pressure of the scraper is maintained; the pulley module and the supporting plate module support alternately, so that the bearing time of the pulley module is shortened, the pulley module is protected, and the service life of the pulley module is prolonged.

The utility model discloses a kind of high-level oil tank constant pressure compensation devices, comprising: for storing emergency lubrication oil high-level oil tank box;Further comprising: main oil pipeline assembly, main oil pipeline assembly is connected on the oil inlet of high-level oil tank box;Overflow pipeline assembly and constant pressure compensation component, overflow pipeline assembly and constant pressure compensation component are connected on the oil outlet of high-level oil tank box by three-way joint;Constant pressure compensation component includes buffer oil reservoir, conical sealing cover, sealing ball and breather cap, the oil inlet of buffer oil reservoir is communicated with the third interface of connecting three-way joint, conical sealing cover is sealedly connected with the oil outlet of buffer oil reservoir, conical sealing cover top is equipped with conical hole, breather cap is installed in the upper opening of conical hole;Sealing ball is float ball structure and is located in buffer oil reservoir, sealing ball can be cooperated with conical hole and form one-way seal.The utility model can realize effective sealing and overflow when oil is supplemented, pressure flow stability in emergency.

This utility model relates to the technical field of water circuits in coffee machines, proposing a coffee machine that combines anti-dry-burning and efficient steam output, comprising: a preheating pot for preheating cold water; a water pump connected to the preheating pot to input cold water into the preheating pot; a coffee pot for heating liquid and connected to the preheating pot, where cold water is heated and then reheated; and a steam pot for heating liquid to output steam, connected to the coffee pot, and equipped with a water level probe to detect the liquid level and prevent dry-burning. When the water level in the steam pot is below a detection threshold, the liquid is replenished into the steam pot after being heated by the water pump, preheating pot, and coffee pot. The connection between the steam pot and the coffee pot allows it to directly receive hot water from the coffee pot, significantly shortening steam heating time, reducing steam pressure fluctuations, and ensuring stable and continuous steam output.

The invention discloses a multi-path inlet and outlet booster pump, which belongs to the field of supercharging devices, and comprises a first cavity, a second cavity, a first oil inlet passage, a first oil outlet passage and at least two oil guide passages positioned between an end cover and a reversing valve body, one end of an oil guide passage is connected with the second cavity, and the other end is connected with hydraulic oil outside the booster pump; one end of the other oil guide passage is connected with the first cavity, and the other end is connected with hydraulic oil outside the booster pump; when the pressurizing piston reverses, external hydraulic oil smoothly enters and exits the pressurizing cavity under the common buffering effect of the at least two oil guiding channels. The at least two oil guide channels located between the end cover and the reversing valve body are arranged to provide oil storage, oil inlet and outlet oil path buffering generated during reversing of the pressurizing piston is provided for hydraulic oil in the first cavity and the second cavity, and sudden pressure change at the moment of oil inlet and oil outlet is avoided; and oil storage and pressure balance on the oil inlet side and the oil outlet side are achieved.

The utility model relates to a kind of bulking equipment for corn processing, including fixed subassembly, bulking subassembly and transmission subassembly, fixed subassembly includes heat insulation cylinder, it is fixedly arranged, heat insulation cylinder is sealed and rotationally arranged with heat conduction cylinder, at least heater is arranged in heat insulation cylinder;Bulking subassembly includes motor, it is fixedly arranged, the output end of motor is fixed with screw conveyor, screw conveyor rotationally arranged in heat conduction cylinder;Transmission subassembly includes gear ring, it is fixed with heat conduction cylinder using heat insulation pad, the transmission end of screw conveyor is sealed and penetrates heat conduction cylinder and is fixed with center tooth, center tooth and gear ring are engaged with steering tooth, heat insulation cylinder one end is fixed with planet carrier, center tooth and steering tooth are rotatably sleeved in the both ends of planet carrier.In the application, corn realizes automatic quantitative feeding in the process of bulking, and the uniform feeding amount makes corn heated consistently, while avoiding the pressure fluctuation between corn, thereby reducing the phenomenon of insufficient bulking or excessive bulking.

This application discloses a wind turbine blade injection device and equipment. The wind turbine blade injection device includes a mold, a lifting mechanism, an injection assembly, a sensor, and a controller. The lifting mechanism includes a drive component and a lifting platform. The drive component moves the lifting platform along the height direction of the mold. The injection assembly includes a buffer bag, a first guide pipe, and a second guide pipe. The buffer bag is placed on the lifting platform and is connected to the injection glue machine through the first guide pipe and to the guide channel through the second guide pipe. The sensor detects the liquid level injection height within the mold. The controller is electrically connected to both the lifting mechanism and the sensor. Based on the liquid level injection height information detected by the sensor, the controller controls the drive component to adjust the height of the lifting platform so that the height of the buffer bag matches the liquid level injection height. The technical solution provided by this application can ensure uniform resin injection, reduce problems such as uneven resin flow and residual air bubbles, and improve the quality of blade molding.

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 invention relates to the technical field of liquid supply pipelines, in particular to a mining remote liquid supply pipeline multi-pump cooperative pressure control method which comprises the following steps: firstly, acquiring multi-pump operation data through intelligent sensing equipment, performing characteristic analysis in combination with target process parameters, and extracting liquid supply pressure characteristics; and then, performing control interaction on multiple pumps by utilizing the target parameters and the pressure characteristics, and analyzing real-time pressure demand information. And performing cooperative calculation based on the demand traversal pressure characteristics, and formulating a multi-pump cooperative control strategy. A simulation execution mechanism is innovatively introduced, real-time monitoring is conducted on the strategy before the strategy is issued, a simulation result is generated, the control strategy is dynamically optimized and updated according to the result, and finally intelligent cooperative pressure control over the multiple pumps is achieved. According to the method, the problems of uneven multi-pump pressure, response lag, high energy consumption and the like in traditional control are effectively solved, and the stability, the safety and the energy efficiency level of the system under complex working conditions are improved through simulation, monitoring and closed loop correction.

The utility model discloses a stability maintaining assembly of a blast furnace coal injection pulverized coal filter for an iron making plant, which comprises a coal injection header pipe, a coal injection pipe A, a coal injection pipe B, a pulverized coal filter, an inlet normally-open standby valve, an outlet normally-open standby valve, an inlet working valve, an outlet working valve, a blow-down branch pipe, a blow-down header pipe, a blow-down valve and a blow-down valve, the inlet normally-open standby valve and the outlet normally-open standby valve are both provided with portable mechanical locks, the air inlet end of the purging valve is connected with a nitrogen spraying device, and a blow-down branch pipe on the rear side of the blow-down valve is sequentially provided with a detection valve A and a detection valve B; a plurality of groups of pulverized coal collecting devices are arranged on the blowdown main pipe and are connected with the blowdown main pipe through blanking valves. According to the utility model, after practical application, even if misoperation occurs, harm caused by misoperation can be avoided, essential operation safety is achieved, maintenance can be completely realized, and the situation that the pulverized coal collector is full of leaked pulverized coal is avoided.

The utility model discloses a kind of double-color plastic product secondary forming injection mould, belong to injection mould technical field, including injection mould and fixed pipeline, the upper surface of injection mould is fixedly connected with upper top cover, and pouring opening is arranged in upper top cover inside, and upper top cover upper surface is fixedly connected with connecting column close to the one end of pouring opening, while connecting column inner wall is fixedly connected with positioning column;The positioning column is symmetrically distributed about the center of the connecting column, the lower end of the fixed pipeline outside is fixedly connected with sealing ring, and fixed pipeline is slidably arranged in the connecting column inside.The double-color plastic product secondary forming injection mould, by the spacer plate and the shaft set, not only can ensure the color of product appearance clear and pure, but also can prevent unused plastic into mold cavity, avoid two color plastics mutual mixing, ensure that each plastic plays its expected performance in respective injection molding process, prolong the overall service life of mould.

The invention discloses a multi-drift-diameter valve system capable of intelligently and cooperatively switching runners and a control method of the multi-drift-diameter valve system, and belongs to the technical field of fluid control. The system comprises a cooperative controller, a plurality of valve bodies, a plurality of valve cores, a plurality of sensing arrays and a plurality of driving modules, each valve body is provided with a plurality of flow channel interfaces, the flow channel interface of each valve body is connected with the flow channel interface of the next valve body through a pipeline to form a flow channel network, the valve cores are rotatably arranged in each valve body, and the driving modules are connected with the valve cores. The valve element is connected with the driving module and used for being communicated with different flow channel connectors, a sensing array is arranged at an inlet of each flow channel connector and used for obtaining inlet pressure and instantaneous flow of the flow channel connector, the valve element is connected with the driving module, and the sensing arrays and the driving module are connected with the cooperative controller. Through energy field reconstruction and virtual impedance active control, essential smooth switching of multiple flow channels is achieved, energy consumption and mechanical wear are remarkably reduced, and the self-adaptive cooperative capability is achieved.

This utility model provides a semi-hermetic refrigeration compressor body cover with an exhaust needle, relating to the field of semi-hermetic refrigeration compressor technology. It includes a cover assembly consisting of a cover body and four rotating seats arranged in a ring on the cover body. It also includes an exhaust assembly consisting of an exhaust seat fixedly connected to the top of the cover body and a threaded seat. A rubber plug is installed inside the exhaust seat, and a through hole is opened at the top of the rubber plug. Through the exhaust assembly, the exhaust seat and the threaded seat cooperate to form an exhaust channel. The inclined through holes of the rubber plug are arranged in a ring, with the angle decreasing from top to bottom towards the center. This design allows the gas to form a converged and then dispersed flow path during exhaust, ensuring smooth exhaust and achieving dynamic sealing through the elasticity of the rubber plug itself, reducing gas leakage. The inclined structure also reduces airflow impact, improves exhaust stability, and enhances overall sealing and exhaust performance.