10results about How to "Reduce internal pressure" patented technology

The utility model provides a new energy automobile air conditioner filling valve which comprises a valve body and a valve element located in the valve body, one end of the valve body is further provided with a branch pipe used for outputting refrigerants, the filling valve further comprises a pressure relief assembly, the pressure relief assembly comprises a pressure relief cover, a base, an air inlet pipe, an air outlet pipe and a valve shaft, and the pressure relief cover and the base are fixedly installed on the top of the valve body respectively. A valve plate is fixedly connected to the base, one end of the air inlet pipe penetrates into the base and is located at a through groove of the valve plate, the other end of the air inlet pipe penetrates into a cavity of the valve body, an air outlet pipe and a valve shaft penetrate through the top of the pressure relief cover, and a cavity of the air outlet pipe is communicated with the cavity in the pressure relief cover. The valve shaft is located in the center of the pressure relief cover and movably connected with the pressure relief cover through the bearing, the fixing rod is located on one side of the valve shaft, high-pressure refrigerants are discharged through the air inlet pipe, the through groove, the pressure relief cover and the air outlet pipe, internal pressure is reduced, residual refrigerants are discharged in time, the valve body is far away from the air outlet pipe, and it is avoided that the residual refrigerants are sprayed out and extremely prone to frostbite workers.

The utility model discloses a pipe network pressure-superposed matching and parallel connection high-level regulation and storage bag type air pressure water tank pressurization water supply system. The system comprises a municipal pipe network, a flow stabilization tank, a variable frequency pump set, a water supplementing main pipe, more than two bag type air pressure water tanks, a pressurization water supply main pipe and a user pipe network, a bag type air pressure water tank comprises a water supplementing branch pipe, a pressurizing water supply branch pipe, a water drainage pipe, an air supplementing opening and a security check device. A lower limit pressure switch, an upper limit pressure switch and an ultraviolet lamp are sequentially arranged on the rear section of the pressurizing water supply main pipe in the water flow direction. According to the utility model, a plurality of high bag type air pressure water tanks are used for regulating, storing and supplying water to a user pipe network, so that the impact on a municipal water supply pipe network in a water peak period is reduced; pressurized water supply is performed on a user pipe network by adopting an air pressure extrusion and gravity self-flowing form in the air pressure water tank, so that the requirement of multiple user pipe networks on pressurized water supply is met; the water replenishing operation of the variable-frequency pump set is controlled by the double-pressure switch, the linkage control logic is simple, and frequent starting and stopping of the variable-frequency pump set are avoided.

The application provides a battery monomer and a battery pack, and relates to the technical field of batteries. The battery monomer comprises a shell with an opening, a pole provided in the shell, an electrode assembly provided in the shell and electrically connected with the pole, an end cover connected with the shell to cover the opening, and an explosion-proof valve provided on the end cover. The shell is an integral molding structure, the end cover and the pole are oppositely arranged along a first direction, one side of the end cover close to the electrode assembly is provided with an exhaust groove, and the explosion-proof valve and the exhaust groove are oppositely arranged along the first direction. In the battery monomer provided by the application, the position of the pole is no longer a weak area of the shell, so that the shell has higher structural strength at the position, thereby being able to resist greater internal pressure of the shell; the exhaust groove on the end cover facilitates the dispersion of high-temperature and high-pressure gas in the shell to the explosion-proof valve to reduce the internal pressure of the shell. Therefore, the safety of the battery monomer is improved.

The utility model discloses a leakage circuit breaker mounting structure, and the circuit breaker shell is composed of base, middle seat and upper cover, and the middle seat and upper and lower cover cooperate to form L pole and N pole matrix, and the L pole matrix contains arc extinguishing chamber, L pole moving and static contact group and incoming and outgoing line terminal; the N pole matrix contains circuit board, N pole moving and static contact group and incoming and outgoing line terminal, and the middle seat is divided into main seat body and corner piece, the corner piece is corner structure, one end of the inserted board is inserted into the matching recess of the corner mouth of main seat body, the other end of the matching surface is abutted with the abutted mesa of main seat body, and the closed corner mouth outer edge is located between the base and the upper cover, and the L pole and N pole matrix are communicated through the corner mouth to form magnetic ring placement area, the magnetic ring is obliquely installed, and the L pole and N pole power supply wire are provided with the magnetic ring. The product solves the problem that the magnetic ring is difficult to install in the limited space due to the large volume.

The utility model discloses a novel device with a hot delivery roller structure. The novel device comprises a hot delivery roller body, end plates are installed at the two ends of the hot delivery roller body, a round hole is formed in the center of each end plate and connected with a roller shaft, the inner side of each end plate is a plane, the outer side of each end plate is an arc face, and each end plate is provided with a through hole. The outer side of the end plate is changed into an arc surface structure, so that stress on the surface of the hot delivery roller and the roller shaft can be effectively dispersed, the service life of the roller shaft is prolonged, and the production stability is improved. The through holes are formed in the end plates, so that gas which expands after being heated in the hot delivery roller body is conveniently exhausted, the pressure in the hot delivery roller is reduced, the effect of reducing the temperature of the hot delivery roller is achieved, the risk that the roller surface of the hot delivery roller cracks after being heated is reduced, the service life of the hot delivery roller is prolonged, and stable production is guaranteed. According to the utility model, the service lives of the hot delivery roller and the roller shaft are effectively prolonged, the stability of equipment in the production process is greatly improved, the stable operation of production is ensured, the consumption is reduced, and the cost of spare parts is saved.

The utility model relates to the technical field of electronic cigarettes, in particular to an electronic cigarette capable of preventing oil leakage. The electronic cigarette comprises an oil cup, an atomizing tube, oil storage cotton, an atomizing core and oil cup support silica gel. A suction nozzle is formed at the top of the oil cup, an atomizing pipe corresponding to the suction nozzle is connected in the oil cup, and oil storage cotton is arranged in the atomizing pipe; the oil storage cotton forms an atomization channel communicated with the suction nozzle; an atomizing core is arranged in the atomizing channel; the oil cup bracket silica gel is arranged at the bottom of the oil cup; an oil inlet is formed in the bottom end of the atomizing pipe; the bottoms of the tar cup support silica gel, the tar cup and the atomizing pipe are closed to form a tobacco tar storage space; diversion silica gel is sleeved outside the atomizing pipe above the oil inlet hole; the flow guide silica gel is matched with the oil cup support silica gel to isolate a channel through which the tobacco tar flows to the atomization pipe oil inlet hole; and an axial oil guide port is formed in the flow guide silica gel. According to the utility model, the problem of tar leakage caused by tobacco tar pressure is solved; the method can be applied to electronic cigarettes.

The utility model discloses an excavator hydraulic pump with a pressure relief structure, and relates to the technical field of excavator hydraulic pumps, the excavator hydraulic pump with the pressure relief structure comprises a cylinder body mechanism, the main body of the cylinder body mechanism is of a hollow structure, and the right side of the cylinder body mechanism is fixedly connected with the pressure relief mechanism. According to the buffer type pressure relief oil supply device, buffer storage and rapid backflow supplement of pressure relief oil are achieved through cooperation of the buffer storage connecting pipe, the buffer storage mechanism, the guide assembly, the guide rod assembly, the floating ball assembly, the blocking ball assembly, the supply pipe and the supply pump, and when the oil flows into the buffer storage mechanism through pressure relief, the buffer storage mechanism is connected with the cylinder body mechanism, and the pressure relief mechanism is connected with the cylinder body mechanism. The floating ball assembly drives the blocking ball assembly to close the discharging opening along with rising of the liquid level, and oil liquid is prevented from overflowing. When the oil liquid needs to be supplemented, the supply pump sends the cached oil liquid back to the liquid inlet pipe through the supply pipe, and the oil liquid supplementing speed is increased.

This invention provides a pressure regulation system and control method for liquid carbon dioxide. The system includes a carbon dioxide storage tank, a pressure regulation unit, and a liquid supply unit. The pressure regulation unit includes a refrigerant storage tank, an electric valve, a heat exchanger, and a cooler connected in sequence. The heat exchanger is located inside the carbon dioxide storage tank. The refrigerant in the refrigerant storage tank flows through the heat exchanger to cool the gaseous carbon dioxide in the carbon dioxide storage tank and convert it into liquid carbon dioxide, ultimately reducing the internal pressure of the carbon dioxide storage tank. The liquid supply unit includes a liquid supply pipeline, a liquid return pipeline, and a gas return pipeline. The liquid supply pipeline supplies liquid carbon dioxide to external working pipelines. The liquid return pipeline and the gas return pipeline are connected to the gas phase interface of the carbon dioxide storage tank, respectively. Before supplying liquid to the external working pipeline, the liquid return pipeline and the gas return pipeline are opened to pre-cool the external working pipeline to reach the controlled temperature of liquid carbon dioxide before starting the liquid supply process, so as to meet the pure liquid phase operation requirements of the external working pipeline.

This application provides a top cover for a battery casing, a battery casing, and a battery cell, relating to the field of battery technology. The top cover of the battery casing includes a cover plate and at least one support. At least one support is disposed on the cover plate. A channel extending along a first direction is formed between the support and the cover plate. At least one support member is disposed within the channel. The support and at least one support member are an integral structure. In the event of thermal runaway, the support member can effectively maintain the structural shape of the channel, thereby limiting excessive compression or blockage of the exhaust channel, and ensuring that the pressure relief mechanism can properly release pressure, thus reducing the risk of internal pressure buildup and explosion.