9results about How to "Stable pressure relief" patented technology

The invention relates to a single battery, a battery device, an energy storage device, an energy storage system and a charging network. The single battery comprises a shell, an electrode assembly and an insulating structure. The electrode assembly is contained in the shell, the shell comprises a first shell wall and a protruding part which protrudes towards the electrode assembly and supports the electrode assembly, and the protruding part forms a concave part on the surface, opposite to the electrode assembly, of the first shell wall; the insulating structure comprises a first insulating part, the first insulating part covers the surface, opposite to the electrode assembly, of the first shell wall, and a part of the first insulating part is attached to the inner wall of the concave part. In the single battery, the first insulating part covers the surface, opposite to the electrode assembly, of the first shell wall, so that the bottom of the single battery is insulated and protected. As one part of the first insulating part is attached to the inner wall of the concave part, the first insulating part is tightly attached to the concave part of the first shell wall, so that no gap is generated between the first insulating part and the inner wall of the concave part, the insulating property of the bottom of the battery monomer is effectively improved, and the service life of an insulating material is effectively prolonged.

The utility model discloses an ammonium nitrate solution concentration blending reation kettle with anti -explosion function belongs to reation kettle equipment technical field, the utility model discloses a reation kettle body is communicated with the discharge valve at reation kettle body bottom, can carry out even heating to solution through the electric heating plate in the reation kettle body inner wall bottom groove, avoid local temperature too high and cause ammonium nitrate to decompose gas and cause explosion, the cooperation design of stirring rod and top motor can carry out sufficient stirring to ammonium nitrate solution in reation kettle, make solution concentration distribution even. The annular ring and the explosion -proof pipe fixedly connected with the annular ring that reation kettle body surface sets up up and down, effectively enhanced the overall structural strength of reation kettle, the gas outlet pipe of top annular ring and the gas inlet pipe of bottom annular ring mutually cooperate, and the outside cold gas enters the space between the explosion -proof pipe and reation kettle body, and then even cooling is carried out to reation kettle body, and then gas is discharged to the outside from the gas outlet pipe, and the device has the advantages that the explosion -proof effect is good.

The invention discloses a differential mold locking pressure relief oil circuit for a two-plate injection molding machine, which comprises a cartridge valve, two two-position two-way electromagnetic reversing valves and an oil tank; the bottom working oil port of the cartridge valve is connected with the mold locking cavity, and the side working oil port is connected with the mold breaking cavity to form a main channel oil circuit; during the mold locking pressure relief action, when the electromagnet of the second two-position two-way electromagnetic reversing valve is energized, the pilot port of the cartridge valve reaches the side working oil port of the cartridge valve through the first damping, the third damping, the fourth damping and the fifth damping, and the bottom working oil port of the cartridge valve reaches the side working oil port of the cartridge valve through the second damping, the fourth damping and the fifth damping, so that the cartridge valve is slowly opened to realize differential mold locking pressure relief; during the mold breaking action, when the electromagnet of the first two-position two-way electromagnetic reversing valve is energized, the pilot port of the cartridge valve reaches the oil tank through the first damping, so that the cartridge valve is quickly opened to realize differential mold breaking; the advantages are that the mold locking pressure relief process is stable, the mold breaking action is taken into consideration, and the oil cleanliness is good.

The utility model discloses a storage device for epoxy resin, which comprises a storage box, the front side and the rear side of the storage box are fixedly connected with cylinders, the surfaces of the cylinders are sleeved with handles, and the handles are positioned at the top of the storage box. The top of the communicating pipe is sealed through the fixing block, the lifting block and the blocking block in cooperation with the sealing ring and the first sealing gasket, materials entering the feeding and discharging pipe cannot enter the communicating pipe, and when the interior of the storage box needs to be subjected to pressure relief, the lifting block is pulled to move upwards and drives the blocking block and the vertical rod to move upwards; and the vertical rod stretches the tension spring, the blocking block retreats from the interior of the fixing block, the top of the communicating pipe is unsealed, the pressure in the storage box can be rapidly released through the communicating pipe, the storage device has the advantage of stable pressure relief, materials cannot enter the communicating pipe during feeding of the feeding and discharging pipe, the interior of the communicating pipe cannot be blocked, and the pressure relief efficiency of the storage device is improved.

The utility model relates to the technical field of hot melting cutters, in particular to a hot melting cutter. The hot melting cutter comprises a shell and a conductive part at least partially located in the shell. An accommodating space is formed in the shell; the pressure relief gap is communicated with the outside; the pressure relief gap is positioned on at least one of the shell, the conductive part and the shell and the conductive part; the pressure relief gap is provided with a channel extending from the containing space to the outer side of the shell. And the longitudinal sectional area of the pressure relief gap on one side closest to the accommodating space is larger than that of the pressure relief gap on the outer side closest to the shell. Through the arrangement, the pressure release speed can be reduced, impact and vibration caused by too high flow speed can be avoided, the pressure release process can be better controlled, moisture and water vapor entering is effectively reduced, corrosion and oxidation of internal elements of the hot melting cutter are avoided, the performance of the hot melting cutter is improved, and the service life of the hot melting cutter is prolonged.

The application provides a multi-stage adjustable pulmonary vascular intervention balloon catheter and belongs to the field of medical devices. The catheter is fixedly connected with a tube main body at one end, and the tube main body is fixedly connected with a pressure charging cavity, a guide wire cavity and a pressure relief cavity at the end away from the catheter, respectively. The pressure charging cavity, the guide wire cavity and the pressure relief cavity are in communication with the tube main body. The catheter is fixedly connected with a soft head at one end, and the pressure charging device is arranged at the end of the catheter close to the soft head. The application can trigger the opening of the corresponding valves of the inner, middle and outer three layers of balloons in sequence by means of precise control of the pressure charging pressure, realize the grading expansion effect of the precise shaping of the outer layer of balloons at 6 atm under the pre-expansion of the inner layer of balloons at 2 atm and the superimposed expansion of the middle layer of balloons at 4 atm, avoid the risk of overpressure by matching the spring safety valve opened at 8 atm in the pressure relief channel, enable the balloon to retract quickly and the valve to close automatically by negative pressure suction, reduce the risk of guide wire displacement, shorten the operation time and reduce the radiation exposure of patients.

The utility model relates to lithium battery safety protection technical field, specifically disclose a kind of lithium battery sealing explosion-proof shell, comprising: shell main part, it is the main shell structure for containing lithium battery, shell main part top opening place covers and locates top cover, and shell main part and the edge of positioning top cover are detachably sealed connection by bolt.This lithium battery sealing explosion-proof shell, through the multiple groups of pressure relief holes on the gas seat of the explosion-proof valve assembly around arrangement, improve the discharge efficiency, combine the gas guiding effect of auxiliary positioning frame through-hole, ensure that the large amount of high-temperature and high-pressure gas produced when lithium battery body violent thermal runaway rapidly diffuses, high-efficiency discharge, avoid shell internal pressure to exceed material strength limit in short time, prevent shell rupture explosion, avoid to cause secondary damage to surrounding battery and equipment, the cone structure and L-shaped frame of gas seat, further guarantee the stable of shell pressure relief process, improve shell explosion-proof reliability.

This utility model discloses a regulating valve for a pressure cooker, including a fixing nut, a regulating valve core, a regulating position, a regulating valve decorative ring, a shock-absorbing spring, a first counterweight, a second counterweight, a regulating valve knob, and a regulating valve cap. The regulating valve decorative ring is fitted onto the regulating position, the lower end of the regulating knob is fitted onto the regulating position, the upper end of the regulating knob is connected to the regulating valve decorative ring and drives its rotation, and the top surface of the regulating position has a level adjustment block. The second counterweight is fitted onto the outer circumference of the regulating valve core and can slide up and down along it, the first counterweight is fitted onto the outer circumference of the second counterweight and can slide up and down along its outer wall, and the regulating valve cap is installed above the second counterweight. The regulating valve cap has a second vent hole that passes through its upper and lower sides, and the lower side of the regulating valve has a sealing block that opens or seals the outlet of the hollow channel of the regulating valve core. This regulating valve has fewer parts, is easy to assemble, has a three-level pressure regulation function, can increase the seal inside the pot or release vent pressure, and can stabilize the pressure release.

The utility model discloses a boiler pressure detection pressure relief device, which relates to the technical field of boiler devices, and comprises a boiler, a sealing cover is clamped at the top of the boiler, a pressure relief device box is fixed and communicated with the side surface of the boiler, support legs are fixedly mounted at the bottom of the boiler, a pressure relief assembly is arranged in the pressure relief device box, and the pressure relief assembly is connected with the sealing cover. The pressure relief assembly comprises a limiting cylinder, and the limiting cylinder is fixedly installed in the pressure relief device box. According to the device, a rotating rod is rotated to be matched with a rotating shaft to rotate, so that a rotating core rotates in a limiting barrel, the position of the rotating core is limited, a good testing environment is provided for pressure testing in a boiler, when a round hole opening and a gas discharging opening are gradually overlapped, the gas discharging efficiency is highest, and pressure discharging can be rapidly completed; and for the boiler sensitive to pressure, the pressure relief efficiency can be adjusted by rotating the rotating rod, and the situation that the pressure of the boiler changes violently is avoided.