11results about How to "Effective pressure relief" patented technology

The utility model discloses a kind of hot tank exhaust liquefaction structures, including condensate backflow member being fixed on hot tank, steam exhaust pipe being installed on condensate backflow member, condensate backflow member is provided with steam-liquid blending cavity, steam exhaust pipe is provided with the steam passage of intercommunication steam-liquid blending cavity, the inlet end of steam passage is communicated with the inner cavity of hot tank by steam-liquid blending cavity, steam-liquid blending cavity inner wall and steam exhaust pipe outer wall form condensate space, steam converges to form liquid in condensate space inner wall and is backflowed to hot tank by steam-liquid blending cavity. With the effect that hot tank can be effectively pressure-relieved, reduce steam exhaust amount when hot tank pressure-relieved.

The utility model provides a steam conveying pipeline structure for coal combustion, which belongs to the field of steam conveying pipelines and comprises a first connecting pipe, a second connecting pipe, a first limit ring and a mounting sleeve, the first connecting pipe and the second connecting pipe are mounted in a butt joint manner, and a butt joint bulge is fixedly mounted at the top of the second connecting pipe. The sealing ring is installed through the butt joint protrusion and the sealing ring, so that the sealing ring and the sealing ring can be in butt joint conveniently, sealing operation is achieved, and meanwhile the first limiting ring and the second limiting ring are installed in the gap between the first connecting pipe and the second connecting pipe. Limiting can be further carried out through a first limiting ring and a second limiting ring, a threaded rod can rotate along one side of a mounting plate by rotating a plum blossom disc, a butt joint block and a mounting groove can be clamped, a threaded sleeve is used for pushing a fixing block, and the butt joint block can be clamped; and therefore, the first limiting ring and the second limiting ring can be sealed.

The utility model discloses a switch cabinet with a pressure relief structure, which comprises a switch cabinet body and a sealing plate, the upper part of one side of the switch cabinet body is fixedly provided with two first fixing blocks, the middle part of one end of the sealing plate is fixedly provided with a hook plate, and the upper part of the other side of the switch cabinet body is provided with an adjusting port; an adjusting structure is installed in the adjusting opening, an adjustable inverted T-shaped abutting block is installed on the upper portion of the other side of the switch cabinet body, one end of the inverted T-shaped abutting block is movably connected with the lower portion of the hook plate in a clamped mode, a gear is rotationally connected to the upper portion of the other side of the switch cabinet body, and the inverted T-shaped abutting block and the adjusting structure are both in transmission connection with the gear; the switch cabinet is provided with the stable large-opening pressure relief structure, high temperature and high pressure in the switch cabinet can be effectively relieved, stable use of the switch cabinet is effectively guaranteed, the pressure relief structure can be effectively reset for use, and the use performance of the switch cabinet is effectively improved.

This utility model relates to the field of precooling technology and discloses a liquid nitrogen LNG two-phase precooling safety device, including two stainless steel base frames. A storage tank is mounted on the top of each of the two stainless steel base frames. A cooling mechanism is located on the left side of the storage tank for precooling the tank body. A pressure relief mechanism is located on the right side of the storage tank for depressurizing the tank body. An explosion-proof mechanism is located on the right side of the interior of the storage tank. An insulating support mechanism is located on the top of each of the two stainless steel base frames. The cooling mechanism includes a sealing cover, the right side of which is located on the left side of the storage tank. In this utility model, the sealing cover integrates the LNG low-pressure export pipeline, the precooling pipeline, and the liquid nitrogen pipeline, allowing the introduction of LNG and liquid nitrogen to achieve simultaneous precooling of liquid nitrogen and LNG. This reduces the cost and loss of single-medium precooling, avoids the risk of localized overcooling, and improves the precooling efficiency and safety of the LNG storage tank.

The utility model discloses a generator set safety protection device which comprises a generator set, an oil tank is arranged on the generator set, a connecting pipe is arranged below the oil tank, one end of the connecting pipe is connected with a pressure relief device, the pressure relief device comprises a pressure relief pipe, a connecting rod, a fixing frame, a sealing plate, a fixing plate and a tension spring, and the connecting rod is arranged in the pressure relief pipe. The sealing plate is arranged on one side of the connecting rod, the fixing frame is installed in the pressure relief pipe, the tension spring is arranged on one side of the fixing plate, an adjusting mechanism is arranged on the inner side of the pressure relief pipe and comprises a control sleeve, a threaded sleeve, a matching rod, a matching groove, a threaded plate, an adaptive block, an adaptive sleeve, an adaptive groove, an ejector rod and a connecting frame, and the control sleeve is arranged on one side of the pressure relief pipe. The threaded sleeve and the threaded plate are connected with the inner wall of the pressure relief pipe through threads, the matching rod is connected between the sealing plate and the connecting rod, the adaptive block is connected to one end of the connecting rod, the adaptive sleeve is connected to one end of the ejector rod, the adaptive groove is formed in the threaded plate, and the ejector rod is connected with the control sleeve through the connecting frame.

The invention discloses a micro fluid pressure release valve based on electric braking PVC gel, and relates to the technical field of pressure release valves. Comprising an electrode holder, electrodes and a PVC gel valve element, the electrode holder comprises a cross electrode holder and an annular electrode holder, the electrodes comprise a cross electrode and an annular electrode, the cross electrode is installed in the cross electrode holder, the annular electrode is installed in the annular electrode holder, a step is arranged in the cross electrode holder, and after the annular electrode holder is installed on the step, the annular electrode holder is connected with the PVC gel valve element. The cross electrode and the annular electrode are arranged oppositely, a PVC gel valve element is clamped between the cross electrode and the annular electrode, the PVC gel valve element comprises a cylindrical supporting body, the bottom of the cylindrical supporting body is sunken inwards to form a bowl-shaped structure, and the edge of the bottom of the cylindrical supporting body extends outwards to form a skirt edge. According to the invention, the hard problems of large volume and heavy weight in the prior art are solved, miniaturization and system integration are realized, and possibility is provided for realizing a more complex and finer microfluidic operation system and wider application.

The present invention provides an expansion screw capable of injecting bone cement and an injection method thereof, belonging to the technical field of bone cement injection. The invention comprises a screw head, one end of the screw head is fixedly connected with a threaded rod, the other end is provided with a hexagonal slot, a through injection hole is provided at the center of the screw head, an injection head connected with the injection hole is fixedly connected with the surface of the hexagonal slot, the threaded rod comprises an integrally connected threaded section and an expansion section, one end of the threaded section is provided with an elastic groove connected with a silicone sealing ring, and a sealing structure is fixedly connected with the bottom of the elastic groove. The present invention can inject bone cement directly through the screw head and the threaded rod after being fixed with the expansion screw, and the bone cement enters the patient's bone through the injection structure inside the threaded rod, which can effectively relieve the pressure of the injected bone cement, thereby avoiding excessive pressure of the injected bone cement, which may cause secondary injury to the fracture site.

The invention provides an explosion propagation sequence safety pressure relief structure which is characterized in that a fuse shell is mounted in a fuse seat, and an explosion propagation grain, an explosion suppression plate, a detonator seat and a simulated fuse cabin which are in contact in sequence are arranged in the fuse shell from bottom to top; the detonator is not in contact with the detonating grain; a plurality of pressure relief holes are formed in the side wall of the bottom of the fuse shell in the radial direction in a penetrating mode, the pressure relief holes are evenly distributed in the circumferential direction, and a fusible metal plug is installed in each pressure relief hole. A plurality of pressure relief grooves are formed in the outer side wall of the fuse shell in the axial direction, the two ends of each pressure relief groove are open, the pressure relief grooves communicate with the pressure relief holes in a one-to-one correspondence mode, and the pressure relief holes and the pressure relief grooves form a first pressure relief channel. On the premise of not reducing the structural strength of the fuze and not influencing the normal detonating and detonating functions of the detonating sequence, under the condition of accidental thermal stimulation, the gas released by the grain reaction is reasonably released, the pressure can be reliably released, and the situation that the main charge is detonated due to accidental ignition caused by pressure accumulation is avoided; and the overall safety performance of the ammunition structure under the battle guiding matching condition is effectively improved.

The utility model relates to the technical field of double-film gas storage cabinets, in particular to a double-layer inner film double-film gas storage cabinet which comprises an outer film, an outer film control system, an inner film and a bottom film, the inner film is arranged on the upper side of the bottom film, the outer film is arranged on the upper side of the inner film, the edges of the outer film, the inner film and the bottom film are stacked and fixed through pressing plates, and a storage space used for storing gas is formed between the bottom film and the inner film. The inner membrane comprises an outer-layer inner membrane and an inner-layer inner membrane, and trace odor permeating into the inner-layer inner membrane is organized to be discharged through the double-layer internal grinding structural design of the outer-layer inner membrane and the inner-layer inner membrane; by arranging the inner film balance valve, when the pressure of the inner film storage space is larger than that of the outer film interlayer, pressure can be effectively relieved, and the use safety of the structure is improved.

The invention discloses a gas storage unit pressure relief device which is applied to a carbon dioxide energy storage system, the carbon dioxide energy storage system comprises a gas storage unit, an energy storage assembly, a liquid storage unit and an energy release assembly which are sequentially connected in a closed loop mode, and the gas storage unit pressure relief device comprises a gas compression mechanism and a shaft seal gas storage container. The input end of the air compression mechanism is connected to the air storage unit, and the output end of the air compression mechanism is connected to the shaft seal air storage container and / or the energy release assembly; and the air compression mechanism is configured to compress the overpressure part of air in the air storage unit and then input the compressed air into the shaft seal air storage container and / or the energy release assembly when the air storage unit is overpressure. The invention further discloses a carbon dioxide energy storage system comprising the gas storage unit pressure relief device and a control method of the carbon dioxide energy storage system. According to the scheme, on the basis that pressure relief can be effectively conducted on the gas storage unit, loss of the energy storage working medium caused by pressure relief can be avoided.

The utility model discloses an anti-noise microphone, which comprises a shell and a circuit board assembly, the circuit board assembly is packaged at the open end of the shell, the circuit board assembly and the shell define an accommodating cavity, a capacitor assembly for converting sound signals into electric signals is arranged in the accommodating cavity, and one end of the shell far away from the circuit board assembly is provided with a sound hole; a gap is formed between the capacitor assembly and the inner wall of the shell, an adjusting piece is arranged between the side, back on to the circuit board assembly, of the capacitor assembly and the shell, the adjusting piece is provided with an air hole and an adjusting groove, the air hole communicates with the sound hole and the sound cavity of the capacitor assembly, and the adjusting groove communicates with the gap and the sound cavity of the capacitor assembly. A pressure relief groove is formed between the side, facing the circuit board assembly, of the capacitor assembly and the circuit board assembly. The pressure relief groove is communicated with the gap and the interior of the capacitor assembly. Therefore, pressure adjustment and pressure relief can be effectively carried out, the purpose of noise reduction is achieved, and the noise-proof effect that voice communication is clear in the high-speed motion environment is achieved.