73results about How to "Realize automatic pressure relief" patented technology

The invention relates to the field of connectors for gas-liquid pipelines, in particular to a female connector and a fast connector assembly using the same. A female connector valve core is assembled in a female connector shell in a front-back moving mode. An elastic tightly-jacking device is arranged in the female connector shell. The female connector valve core is provided with a first stop face toward the front of the female connector. A second stop face is arranged in the female connector shell which is toward the back of the female connector and used for being in stop fit with the first stop face after sliding forwards by a set stroke when the female connector valve core overcomes elastic force of the elastic tightly-jacking device. A female connector seal ring is arranged on a female connector valve core seal section / seal jacket seal section. A movable seal jacket / the female connector valve core is provided with an avoiding concave part which is located on the front side / rear side of the female connector seal ring before the first stop face is in stop fit with the second stop face and is in clearance fit with the female connector seal ring when the first stop face is in stop fit with the second stop face. The problem that after pressure in an existing cold plate is increased, a female connector connected with the cold plate cannot relieve pressure automatically is solved.

The invention relates to a female head of a quick coupling. The female head comprises a female head shell, wherein a female head valve core and a movable seal sleeve are movably assembled in a female head fluid passage of the female head shell in a guide manner; a female head spring is abutted between the movable seal sleeve and the female head valve core; a sealing section, which is in seal fit with a sealing structure of the seal sleeve to seal the female head fluid passage when being located at a backward limit position, is arranged at the periphery of the female head valve core; a pressure relief section, which is positioned on the rear side of the sealing section for forming a pressure relief passage with the sealing structure of the seal sleeve after the female head valve core moves forwards, is also arranged at the periphery of the female head valve core. The invention provides the female head of the quick coupling capable of realizing automatic pressure relief.

A pressure relief device comprises a main inflation part and a pressure relief plate. The main inflation part is provided with a pressure relief port communicated with the outside. The end, used for making contact with the outside, of the pressure relief port is a communicating end, and the other end of the pressure relief port is a free end. The side, used for making contact with the outside, of the main inflation part is provided with a first magnetic strip which is located below the pressure relief port. The pressure relief plate seals the communicating end. The upper end of the pressure relief plate is rotatably connected with the part, located above the pressure relief port, of the main inflation part. The part, overlapped with the first magnetic strip, of the pressure relief plate is provided with a second magnetic strip. The second magnetic strip and the first magnetic strip attract each other. The pressure relief device has the high accuracy rate and can achieve large air flow pressure relief.

The invention discloses a using method of an altitude-controllable sounding balloon. The using method includes the following steps that firstly, the sounding balloon is assembled; secondly, an air bag is inflated; thirdly, deflation is carried out when the sounding balloon rises; fourthly, the rising altitude is adjusted; fifthly, compensating power is provided when the sounding balloon is collected. Compared with the prior art, the using method has the advantages that the defect that the pressure in a balloon becomes larger and larger in the rising process of the sounding balloon, and explosion is likely to occur is overcome, and the defect that when the sounding balloon is collected, buoyancy is gradually reduced in the deflating process, due to the load on a meteorological data measuring device, the descending speed becomes higher and higher, and the crashing danger exists is also overcome; a controller starts a motor according to pressure signals fed back by an internal pressure sensor and an external pressure sensor, and the motor drives spiral wings to provide compensating power for the sounding balloon to prevent crashing; besides, an altitude sensor can assist in controlling the altitude of the sounding balloon.

The invention relates to a liquid cooling system, and a quick connector female connector. The liquid cooling system includes a cooling module; the cooling module is provided with the quick connector female connector; the quick connector female connector includes a cylindrical shell; a sealing rod is installed in the cylindrical shell; a sealing ring is movably installed between the plugging end ofthe cylindrical shell and the sealing rod; the sealing rod is movably assembled in the cylindrical shell along an axial direction; a pressure spring whose two ends act on the sealing rod and the sealing ring to make the sealing ring keep at the position sealing a gap between the sealing rod and the cylindrical shell is installed in the cylindrical shell; and the sealing rod overcomes the action of the pressure spring to move outward and release the sealing cooperation relation with the sealing ring when internal liquid pressure is larger than a set value. The quick connector female connectorcan realize automatic pressure releasing through the axial movement of the sealing rod when the internal pressure of the cooling module rises, so that the cooling module can be prevented from being burst because of overpressure, and therefore, the service life of the liquid cooling system can be prolonged.

The invention relates to the field of connectors for gas-liquid pipelines, in particular to a female connector and a fast connector assembly using the same. A female connector valve core is assembled in a female connector shell in a front-back moving mode. An elastic tightly-jacking device is arranged in the female connector shell. The female connector valve core is provided with a first stop face toward the front of the female connector. A second stop face is arranged in the female connector shell which is toward the back of the female connector and used for being in stop fit with the first stop face after sliding forwards by a set stroke when the female connector valve core overcomes elastic force of the elastic tightly-jacking device. A female connector seal ring is arranged on a female connector valve core seal section / seal jacket seal section. A movable seal jacket / the female connector valve core is provided with an avoiding concave part which is located on the front side / rear side of the female connector seal ring before the first stop face is in stop fit with the second stop face and is in clearance fit with the female connector seal ring when the first stop face is in stop fit with the second stop face. The problem that after pressure in an existing cold plate is increased, a female connector connected with the cold plate cannot relieve pressure automatically is solved.

The invention discloses an explosion-proof pressure relief method used for a microwave metallurgical furnace. By arranging an explosion-proof protection layer made of stainless steel on the peripheryof the microwave metallurgy furnace, the microwave metallurgy furnace can be effectively protected, and the situation that equipment is damaged due to excessively internal pressure is prevented; by utilizing a pressure relief control valve, automatic pressure relief can be realized when the internal pressure of the microwave metallurgy furnace is large; when the internal pressure is large, a piston is pushed upwards, when the position of the piston exceeds the height of a pressure relief channel, a spring contracts, and the piston communicates with the pressure relief channel for pressure relief; when the pressure becomes small, a limiting plate is pushed to move downwards under elastic force action of the spring, the piston is driven to move downwards through a connecting rod so as to seal a hydraulic channel, automatic sealing of a hydraulic control valve is achieved, and using is more convenient; and when the pressure in the microwave metallurgical furnace is large, a pressure sensitive resistor in a pressure sensor communicates with an alarm circuit to remind workers, at this time, an air pump can be opened, and a hydraulic pipe is utilized for quick pressure relief, so that equipment is effectively protected.

The invention provides a novel cable joint explosion-proof box. The novel cable joint explosion-proof box comprises a shell, a ceramic polyolefin inner layer, a high-strength fiber layer, a pressure relief hole, a pressure relief cover plate, a fire extinguishing egg, a shell glue filling port and a shell fastening device; the shell is of an upper and lower double-petal combined structure, the twosides of the shell are in a contracted state, the upper and lower shells wrap and clamp a cable, shell fastening devices are arranged at the clamping positions of the two sides, a pressure relief hole and a shell glue filling port are formed in the shell, and a pressure relief cover plate is arranged below the pressure relief hole; the outer layer of the cable is sequentially wrapped with the high-strength ceramic polyolefin inner layer and the high-strength fiber layer. In the using process, when the internal pressure of the explosion-proof box is too high, internal gas is exhausted throughthe pressure relief holes, the explosion-proof box automatically relieves pressures, fire extinguishing eggs can be started instantly to extinguish fire, the temperature of a large amount of heat released by explosion is reduced in the fire extinguishing process, the purposes of fire extinguishing and cooling are achieved, and the functions of automatic pressure relief, explosion prevention, fireextinguishing and water prevention are achieved; and the loss and harm of accidents are greatly reduced.

The invention discloses an automatic pressure relief blowout preventer which comprises a shell, side doors and gate segments. The side doors are arranged on two sides of the shell, the gate segments are arranged in the side doors, an automatic pressure relief device is arranged in one of the gate segments and structurally comprises a bonnet, the bonnet is arranged in a side of the corresponding gate segment and is fixed into the gate segment by the aid of countersunk head screws, countersunk head holes which are matched with the countersunk head screws are formed in the bonnet, an inlet channel and an outlet channel are arranged in the gate segment, a valve seat is arranged on the gate segment and is positioned on a side of the upper end of the inlet channel, a connecting channel which is communicated with the inlet channel is arranged in the valve seat, a valve clack which is matched with the valve seat is arranged in the gate segment and is connected with one end of a valve stem, a slide cavity is arranged in the bonnet, the other end of the valve stem is slidably arranged in the slide cavity, and a pressure spring is arranged in the slide cavity. The automatic pressure relief blowout preventer has the advantage that the automatic pressure relief blowout preventer is safe in use.

The invention relates to a heat exchange device, which comprises a closed container. A heat exchange module is arranged in the container; two ends of the heat exchange module are connected with a first working substance pipe and a second working substance pipe respectively; a first heat exchange pipe and a second heat exchange pipe are fixedly connected on the container; the first working substance pipe, the second working substance pipe, the first heat exchange pipe and the second heat exchange pipe are all fixedly connected on the bottom wall of the container; a top opening of the second heat exchange pipe is directly formed on the bottom wall of the container and communicated with the cavity of the container; and the first heat exchange pipe passes through the bottom wall of the container and extends to the interior of the container. All pipes of the device are fixedly connected at the bottom of the container so that the integral structure of the heat exchange device is simpler; meanwhile, the heat exchange device simplifies the machining process, greatly reduces the material and manufacturing costs, and can improve the reliability; in addition, by adjusting the height of the first heat exchange pipe, effective demixing of heat exchange liquid or gas in the container can be realized so as to obtain liquid or gas with different temperatures and improve the heat exchange efficiency of the whole device.

The invention provides a sensor life test system and a working method. The sensor life test system comprises an air source, wherein the air source communicates with an air processing pipe network, andthe air processing pipe network respectively communicates with a low-pressure test pipe network and a high-pressure test pipe network; a first pressure control pipeline and a second pressure controlpipeline are respectively arranged in the low-pressure test pipe network and the high-pressure test pipe network; a sensor test pipeline and a pressure relief pipeline are arranged in each of the low-pressure test pipe network and the high-pressure test pipe network, the first pressure control pipeline and the second pressure control pipeline both communicate with the sensor test pipeline, and thesensor test pipeline communicates with the pressure relief pipeline; and the air processing pipe network, the first pressure control pipeline, the second pressure control pipeline, the sensor test pipeline and the pressure relief pipeline are all connected with an upper computer. According to the invention, through real-time data acquisition of automatic pressurization and pressure relief processes, the sensor life test is effectively carried out, the overall operation is simple, and remote control can be realized.

A pressure relief device comprises a main inflation part and a pressure relief plate. The main inflation part is provided with a pressure relief port communicated with the outside. The end, used for making contact with the outside, of the pressure relief port is a communicating end, and the other end of the pressure relief port is a free end. The side, used for making contact with the outside, of the main inflation part is provided with a first magnetic strip which is located below the pressure relief port. The pressure relief plate seals the communicating end. The upper end of the pressure relief plate is rotatably connected with the part, located above the pressure relief port, of the main inflation part. The part, overlapped with the first magnetic strip, of the pressure relief plate is provided with a second magnetic strip. The second magnetic strip and the first magnetic strip attract each other. The pressure relief device has the high accuracy rate and can achieve large air flow pressure relief.

The invention relates to the technical field of blow-off valves, in particular to a blow-off valve in a carbon black production line. The blow-off valve comprises a valve body, a valve cover, a driving mechanism and an air adjusting mechanism. The blow-off valve is used for a carbon black production line, during normal production, waste gas is conveyed to a desulfurizing tower through a pipeline for treatment, and at the moment, the device must be closed so as not to leak waste gas to the outside; when the pressure is too high due to unstable production in a box body, the blow-off valve can timely relieve the pressure to prevent a bag filter from being damaged; and during shutdown maintenance, the blow-off valve can be automatically opened to discharge all waste gas in the box body and keep the box body communicated with the outside. The sealing effect is good, and the tail gas leakage problem is effectively prevented; and the pressure in the valve body is utilized to realize automatic adjustment of pressure relief or sealing. The blow-off valve is simple in structure, easy to match, capable of achieving rapid and automatic blow-off, easy to maintain and capable of guaranteeing long-time stable operation.