2594 results about "Pressure release" patented technology

An incubator can include a body, a bed supported by the body, and a canopy defining an interior chamber that includes the bed. The incubator can include any combination of various features configured to reduce sound energy inside the incubator. The incubator can include a passive radiator, a Helmholtz resonator, a meta material absorber, an active noise cancelation system, a vented door latch assembly, an acoustically permeable seal, a pressure relief valve, a lift mechanism that uses a belt drive, double paned canopy walls, a bin with insulating compliant elements, a manual pressure release valve, a pressure differential notification system, non-parallel or curved canopy walls, a mattress with reticulated foam, and / or an acoustic filter.

Systems and methods herein generally relate to prolonging viability of bodily tissue, especially an organ such as a lung, by adjusting pressure as needed to maintain a constant pressure within the organ even during external pressure fluctuations due, for example, to transportation of the organ in an airplane. The systems and methods herein can include an electronic pump that pumps gas into an organ and a mechanical pressure regulator to release gas based on organ pressure.

Systems and methods herein generally relate to prolonging viability of bodily tissue, especially an organ, by adjusting pressure as needed to maintain a constant pressure within the organ even during external pressure fluctuations due, for example, to transportation of the organ in an airplane. The systems and methods herein can include an electronic pump that pumps gas into an organ and a mechanical pressure regulator to release gas based on organ pressure.

Systems and methods herein generally relate to prolonging viability of bodily tissue, especially an organ, by adjusting pressure as needed to maintain a constant pressure within the organ even during external pressure fluctuations due, for example, to transportation of the organ in an airplane. The systems and methods herein can include an electronic pump that pumps gas into an organ and a mechanical pressure regulator to release gas based on organ pressure.

The shutdown of a compressor (10) installed in a refrigerant circuit (2) in air conditioning or refrigeration system is controlled so as to prevent unpowered reverse rotation of the compressor. Prior to terminating electric power to the compressor drive motor (24), the pressure within the system is relieved and substantially equalized across the compressor, thereby eliminating the possibility of unpowered reverse rotation of the compressor at shutdown. Pressure relief and equalization may be achieved by reducing the operating speed of the compressor to a low forward speed for a period of time prior to deenergizing the compressor drive motor. Pressure equalization may also be achieved by driving the compressor in reverse rotation prior to deenergizing the drive motor.

The invention provides an intelligent pressure management system, method and terminal for geological sequestration of carbon dioxide, and the system comprises the steps: collecting the pressure data of the interior and peripheral key positions of each geological reservoir in real time through a pressure monitoring subsystem, and then carrying out the data preprocessing and feature extraction through a data processing and analysis subsystem; and predicting the reservoir pressure change trend in a specific time period in the future. If the predicted reservoir pressure change trend pressure is too high, high-risk related information is transmitted to the intelligent regulation and control subsystem, and the intelligent regulation and control subsystem regulates and controls the reservoir pressure by regulating the flow of a carbon dioxide injection well and a production well or starting a pressure release device according to a preset strategy and dynamically regulates a regulation and control mode according to pressure data. Meanwhile, the communication and monitoring subsystem transmits system operation data to a remote monitoring terminal in real time, so that real-time monitoring is facilitated. Real-time, accurate and automatic regulation and control of the pressure of the geological reservoir are achieved, the stability and safety of the geological reservoir in the carbon dioxide injection process are guaranteed, the geological storage effect of the carbon dioxide is improved, and various negative effects caused by too high pressure are avoided.

The invention discloses an optimization control method for pressurization closed-loop enabling. The optimization control method comprises the steps that whether the pressure in a compressor of an engine supercharger assembly meets the minimum pressure condition or not is judged; judging whether the engine speed meets the engine speed condition or not; whether a pressure release valve of the engine supercharger assembly is not opened or not is judged; if all the judgments are yes, pressurization closed-loop enabling is allowed, and pressurization closed-loop control is carried out after pressurization closed-loop enabling; otherwise, the pressurization closed-loop enabling is not carried out. According to the method, the pressurization closed-loop enabling condition is optimized, the pressure control stability when pressurization enters a closed loop is improved, the pressurization responsiveness and the EGR system responsiveness are improved, pressurization closed-loop control is optimized, in other words, the engine rotating speed condition and the minimum pressure condition are optimized under different EGR working conditions, and therefore the engine performance is improved. And dynamic learning optimization is carried out under the minimum pressure condition, learning parameters are continuously updated in the subsequent control process, and the pressurization control stability is further improved.

The invention discloses an alpine region-based double-curvature arch dam aeration ice-melting anti-icing device, and relates to the technical field of anti-icing, the alpine region-based double-curvature arch dam aeration ice-melting anti-icing device comprises a double-curvature arch dam body, a lifting structure, an aeration anti-icing structure, a PLC controller, a temperature sensor and a liquid level sensor are arranged on the outer convex curved surface side of the double-curvature arch dam body, and the aeration anti-icing structure comprises a plurality of fourth connecting pipes; the bottoms of the outer sides of the fourth connecting pipes are fixedly connected with a plurality of pressure release valves, and the bottoms of the pressure release valves are fixedly connected with bubble generators, so that along with the rise of the internal air pressure of the fourth connecting pipes, the air flow bursts through the pressure release valves and then is discharged through the bubble generators, and a large number of bubbles are generated; and in the process that the bubbles move towards the water surface, the water surface is stirred, the water surface is prevented from being frozen, the anti-freezing effect on the upstream side of the hyperbolic arch dam body is comprehensively achieved, and damage to the structure of the upstream side of the hyperbolic arch dam body caused by freezing is reduced.

The invention relates to the technical field of lithium ion battery safety, and discloses a lithium ion battery thermal runaway multi-cascade emergency response prevention system. The system comprises a thermal signal monitoring module, a thermal diffusion prediction module, an emergency suppression module, a pressure balance module and a multi-mode linkage module. The thermal signal monitoring module obtains multi-dimensional temperature data, identifies abnormity and generates a thermal runaway early warning signal; the thermal diffusion prediction module combines the early warning signal and the battery module structure parameters to calculate the thermal propagation path and rate and generate a prediction result; the emergency suppression module matches a suppression medium according to a prediction result, and calculates a dose putting strategy to form a suppression scheme; the pressure balance module obtains pressure data, analyzes the change rate and distribution, adjusts a pressure release valve strategy in combination with a suppression scheme, and generates a pressure regulation and control instruction; and the multi-mode linkage module integrates data and a scheme, and generates a system-level emergency response instruction based on a pressure regulation and control instruction to realize thermal runaway multi-level joint prevention.

The invention relates to the technical field of intelligent agriculture and precise irrigation, in particular to an intelligent control system for agricultural irrigation. Comprising a water-saving valve module, a sensing layer module, a control layer module, an execution layer module and a data and application layer module, and the water-saving valve module is used for achieving microsecond level flow regulation and control through piezoelectric ceramic driving and energy recovery and integrating a self-maintenance function. According to the invention, the LSTM network and the Duelling DQN algorithm are utilized to accurately discriminate the soil type and formulate an extreme weather coping scheme, dynamic optimization of an irrigation strategy is realized based on low-power-consumption edge calculation and an intelligent control algorithm, the adaptability and decision accuracy of the system are greatly improved, multiple advanced technologies are integrated, and the system is suitable for large-scale popularization and application. Comprising a magneto-rheological buffer, a TSN valve controller, an SMA emergency pressure release valve and a variable frequency water pump driver, pressure balance of a pipe network, high-precision synchronization of valves and safe treatment of sudden failures are ensured, and the stability and flexibility of an irrigation system are comprehensively improved.

Provided are a battery module and an automobile. The battery module includes a box body, cells, a box cover and a supporting member. The box body is concavely provided with an accommodation groove. Multiple cells are disposed side by side in a first direction to form a cell group, and the cell group is disposed within the accommodation groove. The box cover is arranged to block a groove opening of the accommodation groove. The supporting member is disposed between the box cover and the cell group, a pressure relief groove is disposed on the supporting member, the supporting member includes a substrate and a first reinforcing portion, the first reinforcing portion abuts against the box cover, at least part of the pressure relief groove is disposed within the first reinforcing portion, and pressure relief valves of all cells communicate with the pressure relief groove.

The invention relates to the technical field of transformers, in particular to an oil-immersed power transformer which comprises a hollow rod, a first round rod, a first piston, a first spring, a cylinder, a second round rod, a second piston, a limiting block and a ventilation assembly. A hollow rod is fixedly connected to the diaphragm; a first round rod is slidably connected to the hollow rod. A first piston is fixedly connected to the first round rod and makes contact with the lower end of the hollow rod. A cylinder is fixedly connected to the box body; through cooperation of the hollow rod, the first round rod, the first piston, the first spring, the cylinder, the second round rod, the second piston, the second spring and the limiting block, pressure relief operation can be automatically completed when pressure in the transformer body is increased abnormally, and therefore the transformer body can be protected; and the transformer oil sprayed out at a high speed can be intercepted and prevented from being sprayed to the outside to pollute the environment, the intercepted transformer oil is gathered on the upper side of the diaphragm, manual collection of the transformer oil can be facilitated, and waste is avoided.

The utility model discloses a busbar, battery module and battery pack, the busbar includes at least two conducting strip, by setting the first weak part and the second weak part above the thinning area, when the pressure is released, the thinning area will be burst open by the high pressure gas in the single battery, and the impact force will break the first weak part and the second weak part. Therefore, the pressure release valve can efficiently and smoothly release pressure; and when the first weak part and the second weak part are disconnected, the circuit connection between the two adjacent single batteries is also disconnected, so that short-circuit protection is realized, and finally, dual protection of pressure relief protection and battery cell short-circuit protection is synchronously realized. In addition, the first weak part and the second weak part are fused due to overcurrent when being subjected to strong current, and dual protection can also be achieved. The battery module with the busbar can realize dual protection of internal pressure relief protection and battery cell short-circuit protection of the battery module. The battery pack with the battery module has higher safety performance.

The utility model discloses a sparkling water machine, which belongs to the field of household electric appliances, solves the problems of splashing of water discharged from the sparkling water machine and unstable flow of the water discharged from the sparkling water machine, and adopts the technical scheme that the sparkling water machine mainly comprises a water supply component, a gas supply component, a mixing cavity and a gas-liquid separator, the gas supply assembly is communicated with the mixing cavity and supplies gas to the mixing cavity, the gas-liquid separator is provided with a gas-liquid separation cavity, a water inlet, a water outlet and an exhaust port, the gas-liquid separation cavity is communicated with an outlet of the mixing cavity through the water inlet, bubble water in the gas-liquid separation cavity is discharged through the water outlet, gas is discharged through the exhaust port, and the exhaust port is provided with a pressure release valve. A baffle for preventing high-pressure bubble water flowing in from the water inlet from rushing open the pressure release valve is arranged in the gas-liquid separation cavity; and the baffle is blocked between an impact path of the high-pressure bubble water and the pressure release valve. The utility model is mainly used for preventing the water outlet from splashing in the process of discharging bubble water, and improving the stability of the water outlet flow.

The invention discloses a polyurethane foam preparation process and device based on liquid carbon dioxide foaming, and belongs to the field of polyurethane production. The preparation process comprises the following steps: S1, conveying polyether polyol, polymer polyol and a liquid carbon dioxide foaming agent into a front static mixer, uniformly mixing under a certain pressure state, and conveying into a main mixer; s2, inputting isocyanate into a main mixer in a high-pressure state, and uniformly mixing and stirring the isocyanate and other uniformly mixed raw materials in the main mixer; s3, conveying the water, the silicone oil surfactant, the foaming catalyst and the gel catalyst into a main mixer, stirring and mixing with the raw materials, and conveying into an emulsifier; s4, the mixed raw materials and auxiliary materials are subjected to step-by-step pressure release through a multi-layer screen structure of the emulsifier, so that the liquid carbon dioxide is gradually converted into a gas state from a liquid state in the emulsification and pressure release process and is gradually gasified and foamed, and finally the soft polyurethane foam is prepared through pouring.

An apparatus and methods for a rotor pack are provided for a positive displacement supercharger that produces greater engine power output without loss of best seal between the rotors or between the rotors and an interior surface of an enclosing case. The rotors include relief zones and cupped portions at an intake airflow side of each lobe comprising the rotors. The relief zones allow additional airflow to enter the rotor pack while the cupped portions scoop additional airflow into the rotor pack during operation of the supercharger. Tapered radius portions of an enclosing case allow additional airflow to be dragged into the rotor pack. Pressure relief portions on a rotor bearing plate and angled portions on each lobe extend compression events during operation of the rotor pack. The angled portions reduce a margin of the lobes to sharpened edges without affecting the diameter of the margin.

The utility model discloses a sterilization pot which comprises a stainless steel pot body, a pot cover and a stainless steel inner container, a plurality of first connecting plates are arranged on the outer side of the stainless steel pot body, the first connecting plates are connected with a lifting driving piece, and a telescopic rod of the lifting driving piece extends upwards and is connected with the pot cover through a second connecting plate; a plurality of connecting rods are arranged below the pot cover, and the connecting rods are detachably connected with at least one layer of stainless steel tray; the cooker cover is at least provided with a temperature sensor, a pressure gauge and a pressure release valve. According to the sterilization pot, the pot cover can be automatically opened and closed and the stainless steel tray is taken out, on one hand, manual cover opening can be avoided, labor consumption is reduced, operation efficiency is improved, on the other hand, high-temperature or high-temperature steam can be prevented from overflowing to hurt people during cover opening, and safety is high; meanwhile, an operator can conveniently and directly take and place objects above the pot body, and the operation efficiency and safety are further improved.

The utility model discloses a large-scale continuous marinating system, and belongs to the technical field of food processing.The large-scale continuous marinating system comprises a marinating container which is arranged in a sealed mode, a solid-liquid separation device is connected to a discharging opening in the bottom of the marinating container through a discharging pipe, and a belt conveying device used for sending out separated eggs is arranged on one side of the solid-liquid separation device; the solid-liquid separation device is also connected with a blending tank for collecting separated brine, and the brine treated in the blending tank is conveyed to a marinating container for use through a pipeline; the marinating container is provided with a temperature detector for conveniently controlling the temperature in the marinating container, and the top of the marinating container is also connected with a pressurizing pipe for conveniently applying pressure to the temperature detector and a pressure releasing pipe for releasing pressure outwards. The soft boiled egg marinating equipment is used for solving the problems that soft boiled eggs marinated by the existing marinating equipment are poor in quality, the marinating equipment needs manual assistance, the processing efficiency is low, the eggs are easy to break, the cleaning is difficult and the like.

Systems and methods are provided for testing and / or validating anti-propagation systems designed to mitigate a thermal runaway condition in lithium-ion batteries. A system comprises a first temperature sensor for detecting a temperature of a trigger battery cell within the battery module and a heater removably couplable to a substantially central portion of the trigger cell and configured to heat the trigger cell to a threshold temperature. The system further comprises a second temperature sensor for detecting a temperature of a test battery cell adjacent to the trigger cell within the battery module. The trigger cell undergoes a thermal runaway condition upon reaching the threshold temperature. The system may further comprise a controller for controlling the rate of heating of the trigger cell. The system ensures that the trigger cell will breach via the pressure release valve or cell vent after reaching the threshold temperature.

The high-pressure gate valve comprises a gate valve body and a pressure release valve, the gate valve body comprises a first valve body and a first valve element, a first valve cavity, a first inflow channel and a first outflow channel are formed in the first valve body, the first inflow channel and the first outflow channel communicate with the first valve cavity, and the first valve element is movably arranged in the first valve cavity; the first valve element is connected with the first valve element so as to be switched between a first communication position and a first disconnection position, in the first communication position, the first inflow channel is communicated with the first outflow channel, and in the first disconnection position, the first valve element blocks the first inflow channel and / or the first outflow channel; the pressure release valve is fixed to the first valve body, and a flow inlet of the pressure release valve communicates with the first valve cavity. According to the high-pressure gate valve, through the pressure release valve communicated with the first valve cavity, when the pressure of fluid in the first valve cavity rises and the first valve element of the high-pressure gate valve is difficult to move, pressure in the first valve cavity can be reduced by controlling opening of the pressure release valve, and therefore the first valve element can move more easily.

The utility model discloses a natural gas leakage detection device which comprises a natural gas pipeline, a large sealing cavity is fixedly connected above the natural gas pipeline, and the utility model relates to the technical field of leakage detection. According to the natural gas leakage detection device, by arranging the large sealing cavity, when natural gas leaks seriously, the internal pressure of a natural gas pipeline is small, so that a spring telescopic rod drives a baffle to seal a gas inlet, then a lifting plate moves downwards to enable the natural gas in the large sealing cavity to eject a pressure release valve on the baffle, and safety accidents caused by continuous leakage are prevented; according to the natural gas leakage detection device, two groups of forward wheels are driven by a motor to rotate, and when a circular ring moves to a leakage point, natural gas jacks a small sealing cavity to rise and then pulls a sliding plate, so that a first transmission gear is separated from a second transmission gear, and the circular ring stops moving to block the leakage point on the outer wall of a natural gas pipeline; and a worker can determine a leakage place by observing the position of the circular ring.

A fluid system is provided for an aircraft engine. This fluid system includes a lubricant reservoir and a pressure relief system. The lubricant reservoir includes an internal volume. The pressure relief system includes a sensor system, a pressure relieve valve and a controller. The sensor system is configured to provide sensor data indicative of an air pressure within the internal volume. The pressure relief valve is fluidly coupled with the internal volume. The controller is configured to control operation of the pressure relieve valve based on the sensor data.

The invention discloses an integrated sealed primary and secondary fusion pole-mounted circuit breaker in the technical field of circuit breakers, and the integrated sealed primary and secondary fusion pole-mounted circuit breaker comprises a case, a push-pull mechanism, a first elastic mechanism and a second elastic mechanism. A plurality of sets of insulating pull rods extending into the circuit breaker body are installed in the case in an up-down sliding mode, the push-pull mechanisms are fixedly installed in a plurality of sets of supports in the case in a rotating mode, and the top ends of the push-pull mechanisms are fixedly connected with the bottom ends of the insulating pull rods. The two sides of the support are symmetrically provided with two groups of first elastic mechanisms connected with the push-pull mechanism, and the problems that the speed of a movable contact block in an existing circuit breaker cannot be effectively buffered when the movable contact block rapidly gets close to or gets away from a static contact block, and the elastic mechanisms in the circuit breaker are inconvenient to efficiently synchronize energy storage and pressure release of a closing spring and an opening spring; and the operation efficiency, the reliability, the synchronism, the arc extinguishing performance and the like of the circuit breaker are not improved.

The invention discloses a vacuum negative pressure vibration assisted precision casting forming method. The method comprises the steps of model preparation, sand box and dry sand pretreatment, layered vibration sand filling, film covering vacuumizing, molten metal smelting and purification treatment, negative pressure vibration pouring, pressure maintaining solidification, segmented temperature control and pressure relief box opening and multi-stage cleaning aftertreatment. The core of the method is that mechanical vibration and a vacuum negative pressure technology are deeply coordinated and penetrate through the whole process of modeling, pouring and solidification, and meanwhile, a series of fine control means such as dry sand accurate pretreatment, molten metal rotary blowing degassing and instantaneous inoculation, stepped negative pressure control, temperature-related segmented pressure relief and two-stage shot blasting cleaning are matched; through dynamic cooperation of vibration and negative pressure, the sand mold compaction uniformity, the molten metal mold filling capacity and the solidification feeding effect are remarkably improved, the casting defects of air holes, shrinkage porosity, insufficient pouring and the like are effectively reduced, and the internal density, the size precision and the surface quality of a casting can be remarkably improved.

The invention discloses an automatic medium-pressure online detection and closed-loop control method for die steel, relates to the technical field of medium-pressure online detection, and is used for solving the problems that the probability of production deviation is increased and the precision of medium-pressure interval range adjustment is reduced due to abnormality discovery lag. Collecting a pressure fluctuation value and an off-center peak value to comprehensively judge whether the conditions are abnormal; when an abnormal instruction is generated, entering a pressure test stage, calculating a pressure scaling interval based on vibration deviation and fan frequency, adjusting a default pressure interval to obtain a new pressure control interval, and comparing the new pressure control interval with a pressure value; and when the temperature exceeds the range, the surface temperature uniformity of the steel billet is detected, a fault-tolerant proportional adjustment pressure scaling interval is calculated, a control interval is updated and subjected to secondary comparison, whether an abnormal instruction is eliminated or not is determined, production abnormity is found in time, the abnormity judgment accuracy is improved, the abnormity is found in time, and the dynamic adjustment precision of the pressure control interval is improved.

The utility model provides an energy storage cabinet capable of discharging smoke directionally, the energy storage cabinet comprises a box body, the box body is used for accommodating a plurality of stacked battery packs and a smoke discharging pipeline, the smoke discharging pipeline is arranged between a rear wall and the plurality of battery packs, the smoke discharging pipeline extends along the stacking direction of the plurality of battery packs, the smoke discharging pipeline is provided with a plurality of smoke inlets, a plurality of smoke outlets and a plurality of ventilation openings, the smoke outlet and the ventilation opening are both communicated with the external environment of the energy storage cabinet, the position of the smoke outlet in the smoke exhaust pipeline is higher than the position of the ventilation opening, at least part of the battery pack is provided with a pressure release valve towards the outer wall of the smoke exhaust pipeline, a first sealing piece is arranged between the pressure release valve and the smoke inlet, and an opening in one end of the first sealing piece covers the periphery of the pressure release valve. An opening in the other end of the first sealing piece covers the periphery of the smoke inlet. And high-temperature smoke released when the battery pack is subjected to thermal runaway is discharged to the smoke exhaust pipeline through the smoke inlet, and then is released to the external environment through the smoke exhaust port, so that directional smoke exhaust of the energy storage cabinet is realized.

A floating joint and retainer connection device with pressure relief structure includes a hollow fixed retainer; an adaptor joint having an engaging end and a fitting end extended through the fixed retainer to an outer side thereof, and a buffering section located between the engaging and fitting ends; a slidable washer and a fixing element fitted on an outer surface of the fitting end to limit the adaptor joint from moving axially relative to the fixed retainer; an elastic element located between the fixed retainer and the slidable washer; a slidable spacer having an axially protruded section formed on one side; and a spring fitted around the buffering section with two ends pressed against another side of the abutting spacer and a shoulder portion on the adaptor joint. With the above pressure relief structure, the adaptor joint can stay at any radially displaced position relative to the fixed retainer.

The present invention relates to a method for ejecting a weapon 22 arranged in a container 20 from a weapon barrel 10 by means of a pressure ejection, wherein the weapon barrel 10 has a pressure inlet 16, wherein the container 20 has at least one pressure inlet opening 24, wherein the method comprises the following steps: a) Extend the container 20 until the pressure inlet 16 and the pressure inlet opening 24 are aligned, b) Ejection of the weapons 22 arranged in the container 20 with the pressure ejection.

A mattress insert, able to be inserted into a traditional mattress, includes a plurality of compartments, each containing gel beads and water suitable for simulating the feeling, pressure relief, and temperature regulation of a waterbed. The mattress insert is placed into a foam structural material of the mattress, providing the mattress insert with support and preventing the spread of the gel beads within the insert. The foam core of the mattress may be either solid or rounded. This mattress technology and insert is useful for beds, including medical beds and dog beds, recliners, chairs, and sofas.

The invention discloses an intelligent switch cabinet with automatic pressure relief protection, which comprises a cabinet body, a cabinet door is hinged to the front surface of the cabinet body, a heat dissipation channel is fixed on the back surface of the cabinet body, and a motor and a heat dissipation fan are respectively mounted in the heat dissipation channel; first pressure relief openings are formed in the upper portions of the left side and the right side of the cabinet body, blocking plates are arranged on the two sides of the cabinet body and located below the first pressure relief openings, and a second pressure relief opening is formed in the top of the cabinet body. According to the intelligent switch cabinet with the automatic pressure relief protection function, the first pressure relief opening and the second pressure relief opening can be gradually opened according to the pressure of the cabinet body, so that high-pressure gas is rapidly exhausted, graded pressure relief can be performed, pressure is released gently, pressure fluctuation is reduced, and the stability of a system is improved; and high-pressure gas can be discharged in the direction of the plugging plate in the inclined state, so that the gas is prevented from directly impacting surrounding personnel or equipment during pressure relief, and the safety risk is reduced.