11results about How to "Stable internal pressure" patented technology

The invention discloses a pressure measuring and detecting device for stomach tube indwelling, and belongs to the field of stomach tube indwelling, the pressure measuring and detecting device comprises a stomach tube, a detecting device, a central control device, a detecting tube and a remote controller, the detecting device comprises a pressure gauge, the pressure gauge is used for directly reflecting the pressure in the stomach tube; and the detection tube is used for connecting the stomach tube and the pressure gauge and transmitting the pressure in the stomach tube to the pressure gauge. By detecting the pressure in the stomach tube, utilizing the positive pressure characteristic in the lung and the characteristic that the pressure in the lung changes positively and negatively, if it is monitored that the negative pressure possibly proves that the stomach tube enters the airway by mistake, the placement position of the stomach tube is accurately judged, then the mistakes during stomach tube placement can be reduced, and meanwhile, by means of the characteristic that the content in the airway is usually high, the accuracy of stomach tube placement is improved. And whether the stomach tube enters the airway mistakenly or not is judged, the problem of stomach tube position judgment is solved clinically, and adverse events and harm to a patient are reduced.

The present invention discloses a hydrogel surface Zeta potential testing device and a working method thereof, which belong to the technical field of functional polymer material performance testing. It includes a fixed bracket, a high-level container, a low-level container, a sample storage device, a pressure difference detection device, a digital source meter and a circulation pump; the high-level container is installed on the fixed bracket; the circulation pump is arranged in the low-level container; the high-level container and the low-level container are filled with electrolyte solution; the height of the sample storage device is between the high-level container and the low-level container; the sample to be tested is placed in the sample storage device, and the electrolyte solution circulates between the high-level container, the low-level container and the sample storage device. The present invention has a reasonable structural design, low cost, and simple operation. It can obtain relatively accurate results while saving a lot of manpower and material resources, and realizes a simple and rapid measurement method for characterizing the electrochemical properties of the surface of macroscopically large-volume hydrogels, filling the gap in this regard.

The utility model discloses a kind of splash-proof electric kettle, it is related to electric kettle technical field.The utility model includes electric kettle and splash-proof ring groove structure, heating bottom disc is cooperated with electric kettle bottom, electric kettle is provided with splash-proof ring groove structure at the place of lid peripheral side;Splash-proof ring groove structure includes splash-proof structure, backflow prevention structure and water storage structure;Water storage structure top inboard is fixed with backflow prevention structure, backflow prevention structure top surface is provided with flow guide structure, and water storage structure is fixed with splash-proof structure outside flow guide structure.The utility model is by the effect of splash-proof ring groove structure and shunt groove, steam and water drop are guided to splash-proof structure when boiling and water protection is carried out, and the water flow of the condensed steam collected is collected, guided and stored;It also makes the internal air pressure and water flow stable when subsequent pouring, and the water in the water storage structure still cannot flow out, reach the advantages of anti-splashing and protection, and water drop collection, guiding and storage.

The invention provides a melt-blowing fiber nozzle and a spray gun using the same. The melt-blowing fiber nozzle comprises a plurality of components such as a film spraying sheet, an upper air spraying sheet and a lower air spraying sheet. Glue liquid is adjusted to be in a plane state through a plurality of wide glue grooves in the glue inlet path, multi-point glue feeding and spraying are conducted after impurities are filtered through glue filtering holes, and the uniformity and stability of the glue liquid are improved. In the air inlet path, air is divided by the flow dividing groove, adjusted by the wide air grooves and filtered out impurities and then is sprayed out from the air outlet grooves of the upper air spraying piece and the lower air spraying piece, vortex-shaped air atomization glue liquid is formed around the glue outlet grooves, and the atomization effect is better. Adjacent sheets are tightly attached and sealed, stable flowing of glue and gas is guaranteed, leakage is prevented, pressure is stabilized, efficiency is improved, impurities are prevented, and the service life is prolonged. The nozzle overcomes the limitation of a traditional nozzle, solves the problems that the number of glue lines is limited by left and right air paths of the traditional nozzle, low-gram-weight or thin materials cannot be sprayed and compounded in a high-density mode, and glue overflows from the back face when the glue amount is large, provides an efficient and reliable spraying solution for industrial production, and can adapt to different glue spraying requirements and materials.

The utility model discloses a storage device with a pressure stabilizing function, and particularly relates to the field of sulfuric acid production equipment. The storage device with the pressure stabilizing function comprises a machine frame, a storage groove, a pressure monitoring mechanism, a pressure reducing mechanism, a pressure increasing mechanism, an air storage tank and a control device, the storage groove is formed in the machine frame, and an air outlet and an air supplementing hole are formed in the top of the storage groove. The pressure monitoring mechanism is arranged in the storage tank and used for monitoring the pressure in the storage tank, the pressure reducing mechanism is arranged at the position of the air outlet hole, the pressurizing mechanism is arranged at the position of the air supplementing hole, the air storage tank is arranged on the rack, the air storage tank is connected with the pressure reducing mechanism and the pressurizing mechanism, and the pressure reducing mechanism is arranged at the position of the air supplementing hole. The control device is in signal connection with the pressure monitoring mechanism, the pressure reducing mechanism and the pressure increasing mechanism.

The invention relates to the technical field of battery packs, in particular to a battery pack for an energy storage power station and a protection system thereof.The battery pack comprises a battery cell module and a battery pack shell, a battery monomer sealing shell is arranged outside the battery cell module in a packaging mode, and the battery cell module and the battery monomer sealing shell are both located inside the battery pack shell; a pressure-sensitive circular groove is formed in the upper surface of the battery monomer sealing shell in a penetrating manner, and a floating disc body is arranged in the pressure-sensitive circular groove; according to the battery pack for the energy storage power station, through structural cooperation of the floating disc body, the laser receiver, the laser transmitter and the like, the internal pressure condition of the battery monomers can be visually monitored, and through vertical floating of the floating disc body, the internal pressure fluctuation amplitude of the battery monomers can be weakened.

This utility model discloses an aluminum electrolytic capacitor, relating to the technical field of aluminum electrolytic capacitors. It includes: a housing, with a core package fixedly installed on the inner wall of the housing, a guide pin fixedly installed on the top of the core package, and a top sealing plate sealed on the top of the housing; an exhaust valve, including a housing, with a vent plate fixedly installed on the top of the housing, and a blocking plate slidably connected to the inner wall of the housing; and a buffer assembly, installed between the inner wall of the housing and the outer wall of the core package, the buffer assembly including a sleeve, a sliding rod, and a damping block. This utility model effectively absorbs external vibration and impact energy through the synergistic effect of the sleeve, sliding rod, spring, and damping block in the buffer assembly, preventing damage to the internal structure of the core package due to external forces. Simultaneously, the automatic pressure relief and dustproof design of the exhaust valve promptly discharges internal gas and prevents impurities from entering, maintaining internal pressure and environmental stability, significantly improving the capacitor's service life and operational stability.

The invention relates to the field of mirror surface aluminum production, in particular to a film laminating device for a mirror surface aluminum roll, which is used for pasting a protective film before the mirror surface aluminum is rolled and comprises a rack, a conveying roller used for conveying the mirror surface aluminum is arranged on the rack, and a film laminating assembly used for pasting the protective film on the mirror surface aluminum is further arranged on the rack; the film covering assembly comprises an air inflation pair roller which is rotationally arranged on the rack and used for extruding mirror surface aluminum inside; the device has the beneficial effects that mirror surface aluminum and a protective film enter the space between the two cylindrical air bags, so that the mirror surface aluminum and the protective film are extruded through a plane formed by the cylindrical air bags, and the mirror surface aluminum is extruded into a plane through the cylindrical air bags; when the mirror surface aluminum is subjected to film coating extrusion, the mirror surface aluminum is subjected to film coating operation through a plane which is completely attached to the mirror surface aluminum and exerts balanced pressure on all positions of the mirror surface aluminum, and the situation that the mirror surface aluminum is deformed after local pressure is too large due to a traditional linear extrusion range can be avoided.

The invention relates to ceramic production equipment, and provides ceramic bottle bottom stamping equipment for ceramic processing, which comprises a power case, a conveying device and a top frame, the conveying device is mounted on the power output end of the power case, and a ceramic bottle fixing device is placed on the upper surface of the conveying device; an air pressure contraction device is arranged in the ceramic bottle fixing device and used for being attached to the ceramic bottle during use; the screw rod and the extension rod are fixedly mounted through a bolt; stamping equipment is fixedly mounted at the adjacent ends of the screw rods respectively; during use, a worker operates at the conveying end, a ceramic bottle needing to be sealed is placed at the corresponding ball frame, before, an electric telescopic rod pressurizes the interior of an ink cavity to enable ink to enter pores in the lower surface of printing silica gel, follow-up printing is facilitated, during printing, a plastic sleeve facilitates stability of the periphery, shaking of the plastic sleeve is reduced, and printing quality is improved. And in the stamping process, sufficient ink is injected into the capillary pores in the silica gel, and then the internal pressure is kept stable in the stamping process.

This invention relates to the field of centrifuge technology, and more particularly to a modular, quick-install centrifuge sealing system. The system uses a data acquisition module to collect characteristic data parameters of the target centrifuge's sealing mechanism, as well as environmental characteristic parameters of the target centrifuge. The sealing mechanism components maintain internal pressure stability and prevent media leakage within the centrifuge. An analysis module analyzes characteristic data parameters and environmental characteristic parameters to determine their values. A control module compares these characteristic data values ​​with a predetermined characteristic data threshold to determine whether the centrifuge seal stability meets standards, determines the adjustment range of the characteristic data threshold, and issues an alarm to replace the pressure sensor. This invention improves the accuracy of the centrifuge sealing system by determining whether the centrifuge seal stability meets standards using characteristic data values.

The invention provides an efficient continuous oil recovery device which comprises a buffer tank, the upper end of the buffer tank is fixedly connected with a waste gas outlet pipe, the interior of the buffer tank is fixedly connected with an inner pipe, the lower end of the inner pipe extends to the bottom of the buffer tank, and the waste gas outlet pipe is independently communicated with the upper end of the inner pipe; the other end of the waste gas outlet pipe is fixedly connected with a collecting tank, the upper end of the buffer tank is communicated with a bypass pipe, the other end of the bypass pipe is connected with the waste gas outlet pipe, the bypass pipe is provided with a first throttling valve, and the side wall of the lower portion of the buffer tank is fixedly connected with a waste gas inlet pipe. The side wall of the upper portion of the buffer tank is fixedly connected with a nitrogen inlet pipe, and a second throttling valve is arranged on the nitrogen inlet pipe. According to the device, the inner pipe is arranged in the buffer tank, oil can be discharged out of the buffer tank, and stable operation of the device is guaranteed through the arrangement of the inner pipe and a related pressure stabilizing structure.