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26results about How to "Realize automatic pressure relief" patented technology
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Efficient filter bag dust removal and purification equipment
ActiveCN119565277AFully filteredeasy to replaceDispersed particle filtrationTransportation and packagingDust controlProcess engineering
The invention provides efficient filter bag dust removal and purification equipment, and relates to the technical field of filter bag dust removal equipment, the efficient filter bag dust removal and purification equipment comprises a purification mounting piece, and five rows of floating filter parts are mounted on the purification mounting piece; filter bag dust removal pieces are respectively mounted on the five rows of floating filter parts; the five rows of floating filtering parts are respectively used for lifting and adjusting the five rows of filter bag dust removal pieces; the five rows of filter bag dust removal pieces are used for filtering waste gas; the bottoms of the five rows of filter bag dust removal pieces are respectively provided with a blockage detection piece; the blockage detection piece is used for detecting blockage of the filter bag dust removal piece; by means of the pressure relief part, pulse dust removal can be achieved, meanwhile, dust inlet is not affected, inlet air backflow is avoided, meanwhile, dust discharging and arching can be prevented, discharging is smoother, and the problems that according to existing filter bag dust removal and purification equipment, dust backflow is likely to be caused, and meanwhile the use uniformity of a filter bag is poor are solved.
Owner:SHANDONG XINGGUO XINLI ENVIRONMENTAL PROTECTION TECH CO LTD
Variable stroke dual cavity plunger pump
ActiveCN121322334BAdjust stroke lengthDynamic adjustment of output powerPositive displacement pump componentsPumpsElectric machineryDrive motor
The present application relates to the technical field of plunger pump, in particular to a variable stroke double cavity plunger pump, which comprises a shell and a driving motor, two delivery pipes are arranged in the shell, two groups of crankshaft assemblies are arranged on the output shaft of the driving motor, the shell is connected with the corresponding delivery pipe through the crankshaft assembly, and a first one-way valve and a second one-way valve are symmetrically arranged in the delivery pipe along the axis of the crankshaft assembly; the one-way valve comprises a reset assembly, a sealing assembly and a clamping assembly arranged in sequence from top to bottom, the sealing of the sealing assembly is realized by the elastic extension of the reset assembly and the adhesion of the clamping assembly; the sealing assembly on the first one-way valve is provided with a first negative pressure assembly, the sealing assembly on the second one-way valve is provided with a second negative pressure assembly, and the first negative pressure assembly and the second negative pressure assembly are oppositely arranged; by arranging the negative pressure disc and the connecting pipe, the stress area of the sealing ball under the negative pressure condition is increased, the opening speed is accelerated, and the fluid passing efficiency is improved.
Owner:SHAANXI AEROSPACE DELIN TECH GRP CO LTD +1
Self-pressure-relief lip-shaped sealing valve seat structure
ActiveCN222392010Uensure safetyEasy to installPlug valvesPressure relieving devices on sealing facesLip sealVALVE PORT
The utility model relates to a self pressure relief lip-shaped sealing valve seat structure which comprises a valve seat and a valve body, one end of the valve seat is sequentially provided with a first step groove, a second step groove and a third step groove, the other end of the valve seat is provided with a valve seat sealing ring in a pressing mode, an elastic piece is connected between the first step groove and the valve body in a pressing mode, and the elastic piece is connected with the valve body in a pressing mode. A first stepped groove is clamped in the valve body, a second stepped groove is clamped in the first stepped groove, a lip-shaped sealing assembly is connected between the second stepped groove and the valve body in a pressing mode, a metal check ring is clamped in the third stepped groove, the metal check ring is connected with the lip-shaped sealing assembly in a pressing mode, the horizontal distance between the first stepped groove and the valve body is L1, and the horizontal distance between the third stepped groove and the valve body is L2. The self-pressure-relief lip-shaped sealing valve seat structure has the advantages of automatically relieving pressure, improving the safety of the valve, simplifying the structure, being convenient to install and the like.
Owner:XINUOWEI VALVE CONTROL SUZHOU CO LTD
Pressure relief structure of sprinkling can
ActiveCN222428295URealize automatic pressure reliefavoid explosionSingle-unit apparatusSprayerStructural engineering
The utility model relates to the field of sprinkling cans, in particular to a pressure relief structure of a sprinkling can. A sprinkling can pressure relief structure comprises a sprinkling can body, an opening is formed in one side of the sprinkling can body, a sealing cover is connected to the opening, a pressure relief part is arranged at the top of the sealing cover, a pressure relief opening is formed in the pressure relief part, a pressure relief assembly is arranged in the sealing cover in a penetrating mode and comprises a pressure relief cap, a pressure relief hole is formed in the pressure relief part, and the bottom of the pressure relief cap is fixed in the pressure relief hole. A spring is arranged on the pressure relief assembly, a sealing ring is arranged between the spring and the bottom of the pressure relief cap and located in the pressure relief hole, and a sprayer is arranged on the top of the sprinkling can body. Under the condition that the air pressure in the watering can body is not large, the sealing ring can play a sealing role, when the air pressure in the watering can body is too high, the sealing ring is ejected out through the air pressure in the watering can body to relieve pressure so as to achieve automatic pressure relief, and therefore explosion caused by the too high air pressure in the watering can body can be avoided.
Owner:王奎华
Venting detection device for an ultrahigh pressure fuel rail
PendingCN122505491AAvoid forgetting and relieve stressRealize automatic pressure relief
This invention discloses a venting detection device for an ultra-high pressure fuel distribution pipe, relating to the field of water immersion leak detection technology. It includes a detection water reservoir with two air supply connectors mounted on it. A sealing component is fixedly installed on the right-side air supply connector. Two automatic cutting components are mounted on the detection water reservoir, used to cut off the clamping ends of the fuel distribution pipe. An air intake control component is fixedly installed on the left-side air supply connector. An anti-bending and anti-winding component is installed inside the detection water reservoir. The automatic cutting components allow for automatic removal of the clamping sections at both ends of the fuel distribution pipe after leak detection. This removal can be performed during normal venting and leak detection operations, avoiding the risk of manual forgetting to remove the clamping sections. This solves the problem that current ultra-high pressure fuel distribution pipe venting detection devices are not convenient for automatically removing the clamping sections after venting detection.
Owner:WUXI WEIFU SCHMIDT POWER SYST COMPONENTS CO LTD
Reaction kettle for curing castable of dry-type transformer
PendingCN119281269Aprevent overflowwell mixedProcess control/regulationProductsTransformerMixing effect
The invention relates to the technical field of transformer manufacturing equipment, and particularly discloses a dry-type transformer castable curing reaction kettle which comprises a kettle body, a top cover is fixedly buckled and installed at the top of the kettle body through bolts, a vacuum pipe is fixedly connected to the outer surface of the top cover in a penetrating mode, and an air pressure valve is arranged in the vacuum pipe. A first stirring plate and a second stirring plate are arranged to be inclined, so that an upward pushing force can be generated on a mixed castable when the castable and a curing agent are stirred and mixed, the mixed castable can be turned up and down in a stirring frame, the castable and the curing agent are mixed more sufficiently, and the stirring efficiency is improved. And the second stirring plate is provided with the shunting holes, so that the mixed castable can be shunted through the shunting holes when the second stirring plate stirs the mixed castable, part of the mixed castable is refined and mixed through the shunting holes, and the mixing effect is further improved.
Owner:JIANGXI HONGTE INSULATION MATERIAL CO LTD
An electromagnetic valve core with automatic pressure relief capability
ActiveCN121346014Bquick installationquick releaseOperating means/releasing devices for valvesLift valveWater sourceStructural engineering
The application discloses an electromagnetic valve core with automatic pressure relief capacity, which comprises a core component, a buffer assembly for protecting the core is arranged at the upper end of the core component, and a pressure relief assembly for automatic pressure relief is arranged in the core component; the core component comprises a movable core, a water stop piston for closing a water outlet is connected to the bottom of the movable core, and a sealing ring for sealing the water outlet is embedded in the lower end of the water stop piston. Through the arranged pressure relief channel and automatic pressure relief unit, the radial hole can first transmit the high-pressure water source to the inside of the transfer pipeline through the axial hole, the water source in the transfer pipeline pushes the pressure relief plate upward, when the pressure relief plate moves upward to the channel position of the pressure relief secondary pipe, the high-pressure water source is discharged to a specified area through the pressure relief secondary pipe, so that the automatic pressure relief of the electromagnetic valve core is effectively realized, and the resistance received by the piston is reduced, and the working efficiency of the piston is improved.
Owner:NINGBO RIAN PRECISION MASCH CO LTD
High-pressure pipeline connector
PendingCN119123204Aquick fixEasy to disassemblePipe elementsCouplingsStructural engineeringMechanics
The high-pressure pipeline connector comprises a connecting sleeve and a high-pressure pipe and further comprises a fixing part, the fixing part comprises a pressure relief pipe installed on the connecting sleeve through a rotating component, the pressure relief pipe is installed in the connecting sleeve in a sliding mode, and a sealing ring sleeve is fixedly installed in the pressure relief pipe through a sealing ring; the pressure relief part comprises a connecting pipe which is fixedly installed on the pressure relief pipe in a sealed and penetrating mode, a plurality of round holes are formed in the connecting pipe, one-way pipes are fixedly installed on the round holes, and the connecting pipe is fixedly communicated with a communicating pipe. The automatic pressure relief device has the advantages that automatic pressure relief of equipment can be achieved, the pressure intensity in the output pipeline can be automatically adjusted after pressure relief, the use safety of the equipment is effectively improved, meanwhile, the pressure intensity of the output end of the equipment can be effectively ensured, meanwhile, the automatic pressure relief value of the equipment can be adjusted according to needs through the rotating component, and the practicability is high. And the application range of the equipment is effectively expanded.
Owner:NANTONG YINENG ANTICORROSIVE TECH ENG CO LTD
A vacuum disrupter
This utility model relates to the field of intelligent toilet vacuum breaker technology, and more specifically, to a vacuum breaker, including a valve body. The valve body is divided into a water inlet chamber and an installation chamber. A vacuum breaker device is provided at the top of the water inlet chamber. The water inlet chamber and the installation chamber are connected through a water passage hole. The vacuum breaker device is connected to the outside. The installation chamber is provided with a pressure relief pipe, an elastic element, and a first sealing cover. The pressure relief pipe is provided with a pressure relief port. One end of the elastic element abuts against the first sealing cover, and the other end abuts against the end face of the pressure relief port. The first sealing cover seals the water passage hole. This utility model can relieve pressure when the actual pressure of the pipeline exceeds the upper limit of the design pressure, thus preventing the hose from rupturing.
Owner:RUYUAN NANLING INTELLIGENT HOUSEHOLD MACHINERY CO LTD
Vehicle-mounted fuel cell cooling system
The utility model discloses a vehicle-mounted fuel cell cooling system, and relates to the technical field of vehicle-mounted fuel cells, the vehicle-mounted fuel cell cooling system comprises a cell stack, a cooling unit and a pressure relief unit, the cooling unit comprises a cooling pump and a water tank, the pressure relief unit comprises a control valve and a three-way valve, and a liquid phase channel is arranged in the control valve; the radiator, the liquid phase channel, the cooling pump, the cell stack, the three-way valve and the radiator are communicated in sequence to form an external circulating cooling water path; the liquid phase channel, the cooling pump, the cell stack, the three-way valve, the liquid phase channel, the cooling pump and the cell stack are communicated in sequence to form an internal circulation cooling water path; the outlet of the water tank is communicated to the upstream of the liquid phase channel, and the communicated position of the outlet and the liquid phase channel is located at the downstream of the radiator and the three-way valve. The vehicle-mounted fuel cell cooling system is based on the control valve and the three-way valve, and the effects of automatic pressure relief and static pressure control of a fuel cell system in the long-term parking process of a vehicle are achieved.
Owner:GUANGDONG GUOHONG HYDROGEN ENERGY TECH CO LTD
A flour feeding device for preparing soft bread
The present invention belongs to the technical field of soft bread processing, and discloses a flour feeding device for preparing soft bread, including a feeding box and a feeding mechanism, wherein a feeding assembly is rotatably provided inside the feeding box, and a baffle located below the feeding assembly is fixed inside the feeding box. The present invention avoids too much flour from accumulating on the top of the feeding device when feeding flour, and at the same time utilizes the filter cloth sleeve in the processing assembly and the elastically connected adapter head and sleeve plate, utilizes the intake pressure in the dust filtering process, and cooperates with the negative pressure suction effect of reciprocating start and stop, so that the adapter head repeatedly moves up and down, thereby acting on the filter cloth sleeve, realizing self-vibration, actively shaking off and separating the filtered flour, realizing flour suction and dust reduction, and also realizing self-cleaning to avoid blockage, and at the same time, when shaking off the filtered flour, the shaken dust is quickly dropped into the feeding box, which has high efficiency of dust reduction and realizes self-clearing and collection and storage of filtered flying flour dust.
Owner:ZHUHAI HEXINLONG DEVELOPMENT CO LTD +1
Aluminum paste solvent oil filtering device
ActiveCN222468236Uquick changeRealize secondary useStationary filtering element filtersProcess engineeringMechanical engineering
The utility model relates to an aluminum paste solvent oil filtering device which comprises a filter cartridge group, the filter cartridge group comprises two filter cartridges, and the two filter cartridges are arranged in parallel through an oil pipe; terminal filtering operation is not needed when the filter element in the filter cartridge is replaced, so that the filtering efficiency of the solvent oil is improved; the filter cartridge comprises an upper cover and a cartridge body, the upper cover and the cartridge body of the filter cartridge are matched and sealed through an annular metal ring and a sealing ring and are positioned through a positioning opening-stopping valve, the sealing effect of the whole device is good, and when impurities on a filter element are too many, oil can be discharged, pressure can be relieved, and the upper cover can be unscrewed to quickly replace the filter element; a pressure sensor is arranged at the top of the upper cover to detect the pressure in the filter cartridge and cooperate with a console to realize automatic pressure relief; a filter element is inserted into the cylinder body, and impurities and aluminum particles in the solvent oil are filtered through the filter element, so that secondary utilization of the solvent oil is realized.
Owner:SHANDONG YINJIAN ALUMINUM PIGMENT CO LTD
A low-temperature resistant, crack-resistant protective conduit for communication and power cables
This invention relates to the field of power cable technology, specifically to a low-temperature resistant, crack-resistant protective conduit for communication and power cables. It includes a cable body with an inner insulation structure. The insulation structure includes a first positioning ring and a second positioning ring located inside the cable body. The outer wall of the second positioning ring has a heating wire groove, and the inner side of the heating wire groove has a heating wire body. An installation head is fixedly connected to the outer wall of the second positioning ring, and a connecting post is fixedly connected between the installation heads. The side wall of the connecting post has a wire-passing groove. The venting structure includes a venting ring fixedly fitted around the outer ring of the cable body, and multiple venting pipes are fixedly connected to the outer wall of the venting ring. This invention provides a low-temperature resistant, crack-resistant protective conduit for communication and power cables, which has the advantages of heating and insulation in low-temperature environments, automatic venting, and high overall cable stability and compressive strength.
Owner:HEBEI XINPENG COMM EQUIP CO LTD
An aquatic product breeding water treatment device
This invention provides a water treatment device for aquaculture, belonging to the field of aquaculture water treatment technology. It includes an ultraviolet (UV) sterilization unit with a sealed water delivery component, used for defoaming and sterilization; a mixing auxiliary component is installed on the sealed water delivery component to improve the sterilization quality of the aquaculture water; a self-cleaning unit is installed inside the UV sterilization unit; and an anti-pressure-locking component is installed on the UV sterilization unit. This invention, by setting up a UV sterilization unit, can achieve negative pressure suction. Combined with the slidably adjustable sealed water delivery component, it can achieve diverted, quantitative, and sealed UV sterilization of aquaculture water, thus improving sterilization quality. This solves the problems of existing aquaculture water treatment equipment being inconvenient for independent sterilization and the interference of large amounts of foam and scum in the water with UV sterilization.
Owner:FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
Battery with pressure relief valve and battery pack structure
ActiveCN224417961UWill not affect normal useRealize automatic pressure reliefElectrical batteryCell fabrication
The utility model relates to a kind of battery and battery group structure with pressure relief valve, including battery, metal needle, connecting pipe and pressure relief valve, battery cover plate of battery is equipped with liquid injection hole, liquid injection hole communicates battery internal cavity, liquid injection hole sealing rubber peg is embedded in liquid injection hole to block liquid injection hole, connecting pipe and pressure relief valve are located in battery exterior, metal needle is hollow inside, one end of metal needle is connected with connecting pipe, the other end of metal needle is inserted into liquid injection hole sealing rubber peg and extends into battery internal cavity, the other end of connecting pipe is connected with pressure relief valve.Battery is grouped, pressure relief valve uses multiple interface pressure relief valve, that is, pressure relief valve includes multiple air inlets and an exhaust port, connecting pipe on each battery is connected with a corresponding air inlet on pressure relief valve, or when battery number is too much, the connecting pipe of multiple batteries can be commonly connected with the same air inlet of pressure relief valve.The utility model does not occupy battery internal space, and can be assembled after battery manufacturing is completed, and it is convenient to disassemble and assemble.
Owner:ZHEJIANG ZHIYUAN NAKE ENERGY TECHNOLOGY CO LTD
Explosion-proof structure of electric heating steam generator
ActiveCN224121223Uavoid enteringRealize automatic pressure reliefSteam boilers componentsSteam boilersThermodynamicsSteam pressure
The utility model relates to the technical field of electric heating steam generators, and discloses an explosion-proof structure of an electric heating steam generator, a main body comprises an outer shell, a honeycomb-shaped interlayer and a reinforcing inner layer, the honeycomb-shaped interlayer is arranged between the outer shell and the reinforcing inner layer, a pressure gauge is fixedly arranged at the upper end of the main body, and the pressure gauge is arranged on the outer shell. The sealing plug is arranged in the pressure relief pipe, the upper end of the sealing plug is connected with the reset spring and the movable rod, when the pressure in the main body exceeds a set value, steam pressure jacks up the sealing plug upwards, the sealing plug moves upwards on the inner wall of the pressure relief pipe, steam enters the exhaust pipe through a gap between the sealing plug and the pressure relief pipe to be exhausted, and automatic pressure relief is achieved; when the pressure drops to a safety range, the reset spring is elastically released, the sealing plug is pushed to reset downwards, the side portion of the sealing plug is attached to the inner wall of the pressure relief pipe again, automatic sealing is completed, tedious operation of manual reset and entering of external impurities are avoided, and it is ensured that equipment rapidly recovers the sealing state and maintains normal operation after pressure relief.
Owner:河南君安热能设备有限公司
Biogas tank with pressure relief device
ActiveCN222274542UIncrease productionquality improvementBioreactor/fermenter combinationsBiological substance pretreatmentsProcess engineeringMechanical engineering
The utility model relates to the field of biogas tank devices, and discloses a biogas tank with a pressure relief device, which comprises a tank body, collecting boxes are arranged on two sides of the tank body, a connecting pipe is communicated between the collecting boxes and the tank body, a plurality of pressure relief holes penetrating through the connecting pipe are arranged at one end of the connecting pipe extending into the collecting boxes, and the pressure relief holes are communicated with the collecting boxes. The outer end of the end, extending into the collecting box, of the connecting pipe is sleeved with a sleeve, and two telescopic rods are fixedly connected into the collecting box. According to the device, when the pressure in the biogas tank reaches a certain value, the sleeve is pushed downwards by the jacking gas, the pressure relief hole is exposed in the collecting box, at the moment, biogas enters the collecting box from the pressure relief hole, pressure relief is set, and when the pressure in the biogas tank is reduced to a certain value, the telescopic rod rebounds, the sleeve ascends, and the pressure relief hole is blocked; and the pressure in the biogas tank rises, so that the pressure in the biogas tank can be kept within a range.
Owner:QINGDAO LIDE HENGYE MASCH CO LTD
Tailstock for machining outer circle of mandrel
ActiveCN222470741UImprove installation efficiencyImprove disassembly efficiencyTailstocks/centresNeedle roller bearingClassical mechanics
The tailstock comprises a base, a push rod, an oil cylinder and a center assembly, shaft holes penetrate through the two ends of the base, and a guide hole is formed in the lower end of the base; the push rod is in sliding fit in the shaft hole; a mounting hole is formed in the head of the push rod; the oil cylinder is fixed at the tail part of the base; the output end of the oil cylinder is connected with the push rod; the center assembly is mounted in the mounting hole and comprises a sleeve and a center, the sleeve is mounted in the mounting hole, the center is rotatably mounted in the sleeve through a bearing assembly, and the rotating axis of the center is coaxial with the push rod. The bearing assembly comprises a first bearing, a second bearing and a third bearing which are sequentially arranged from front to back, the second bearing is a thrust bearing, and the third bearing is a needle bearing. The tailstock for machining the outer circle of the mandrel is compact in structure, high in operation precision, long in service life and convenient to maintain.
Owner:NINGBO FUKESI HARDWARE ACCESSORIES CO LTD
A new fire and explosion-proof box for cable joint containing composite explosion-proof plate
ActiveCN224329199URealize automatic pressure reliefPlay a role in fire preventionCable junctionsStructural engineeringFire prevention
The utility model relates to joint explosion -proof box technical field, and disclose a novel fire -resistant explosion -proof box for cable joint containing composite explosion -proof board, including the top box, the bottom of top box is provided with the bottom box, is equipped with the first pressure -relief hole on the top box, the inside of first pressure -relief hole is provided with pressure -relief mechanism, the pressure -relief mechanism includes first ring stand and limit ring, the sliding connection of first ring stand has the guide rod, the upper end fixed connection of guide rod has the pressure -relief cover. The utility model discloses through cable joint in short -circuit fire box explosion, the explosion -proof box of cable joint because of the inside pressure instantaneous increase, its pressure -relief cover under the action of pressure, its pressure -relief cover will be upturned, make its fire -resistant explosion -proof box can realize automatic pressure -relief, after the pressure relief is completed, its pressure -relief cover under the action of first spring, the pressure -relief cover is reset and presses on the limit ring, realizes again sealing, avoids the problem that the air appears and burns in the fire -resistant explosion -proof box interior, plays the role of fire prevention.
Owner:SHAANXI MENGCHUANG NANO NEW MATERIAL CO LTD
Powder forming hydraulic press and powder hydraulic forming method
ActiveCN117300124BIncrease the speed of high-pressure pressingIncrease the speed of pressing
This invention discloses a powder forming hydraulic press and a powder hydraulic forming method. The hydraulic press includes a machine body, a main cylinder, an upper slide block, and a worktable. An upper mold for pressing powder is fixed to the bottom of the upper slide block. Return supports are symmetrically arranged on the left and right sides of the upper slide block, each driven by a return cylinder. A demolding slide block is stacked above the worktable. Demolding cylinders are installed below the four corners of the worktable, and the ejector rods of each demolding cylinder are connected to the corners of the demolding slide block. A mold mounting hole is provided in the central area of the demolding slide block, and a through lower mold is installed in the mold mounting hole. A feeding mechanism driven by a feeding cylinder is provided behind the demolding slide block, and a pushing mechanism driven by a pushing cylinder is provided below the feeding mechanism. The powder hydraulic forming method includes: feeding, rapid descent of the main slide block, slow descent, rapid pressurization, working feed pressurization, pressure holding, demolding, upper slide block pressure release and return, demolding slide block return, pushing, and demolding slide block falling back. This invention results in high workpiece forming efficiency and good quality.
Owner:JIANGSU YANGLI HYDRAULIC EQUIP CO LTD
Lock and automatic pressure relief switch cabinet with the lock
ActiveCN112983142BRealization of self-relievingRealize automatic pressure reliefSwitchgear arrangementsBuilding locksLocked plateHigh pressure gas
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD
Main valve structure of high pressure pneumatic clearing device
ActiveCN224550835UImproves sealing reliabilityImprove sealingControl engineeringStructural engineering
The utility model discloses a main valve structure of high pressure pneumatic cleaning device, including valve body, valve ball, left valve pipe spare, right valve pipe spare, the inside of valve body is provided with valve cavity, valve ball rotation is connected in the inside of valve cavity, the left side of valve body is fixedly connected with left valve pipe spare through flange spare, left valve pipe spare other end is connected with gas pressure system, be provided with pneumatic seal spare in left valve pipe spare, pneumatic seal spare and valve ball left side contact, the right side of valve body is fixedly connected with right valve pipe spare through flange spare, right valve pipe spare other end is connected with cleaning device, be provided with spring seal spare in right valve pipe spare, spring seal spare and valve ball right side contact. The utility model discloses a kind of main valve structures of reliable sealing, effectively improve service life and safety.
Owner:HUNAN LIXIANG TECH CO LTD
A micro-pressure filling safety protection device for a basic trainer aircraft fuel tank
ActiveCN116477067BInflate in timeInflating stops in timeAircraft components testingMarine engineeringFuel tank
This invention relates to the field of low-pressure fuel tank technology, specifically a safety protection device for low-pressure fuel tank charging of a basic trainer aircraft. The device includes a fuel tank body with an air inlet at the top and an air inlet pipe fixedly connected inside. When the fuel tank body is charged via the air inlet pipe, if the pressure inside the fuel tank body exceeds the pressure inside the fixed pipe, gas enters the fixed pipe and compresses a first piston, causing it to open a pressure relief pipe. Gas then releases pressure through the pressure relief pipe, which in turn drives a rotating fan blade. This rotating fan blade drives a rotating shaft, which in turn drives a rotating valve via two bevel gears, causing it to rotate and close. The rotating valve then drives a limit block, causing the limit block to rotate at the other end of the notch ring. This achieves automatic valve closure and timely cessation of fuel tank charging during automatic pressure relief.
Owner:芜湖中科飞机制造有限公司
A stand-up pouch with pressure relief function
The utility model discloses a kind of self-supporting bags with pressure relief function belong to packaging bag technical field.Aiming at the problem that conventional self-supporting bag cannot effectively relieve pressure when internal pressure rises, cannot be automatically sealed after pressure relief or is easy to be opened by mistake when transporting and storing, the following technical solutions are provided: a pressure relief mechanism is arranged at the opening of the bag body.The pressure relief mechanism includes a detachably connected pressure relief box and a pressure relief head.The pressure relief head includes a gas inlet head extending into the bag and a connecting pipe.The pressure relief box is provided with an elastic sheet, and a rubber sealing block is fixed to the end of the elastic sheet.The sealing block continuously presses the tapered groove at the end of the connecting pipe to achieve sealing under the action of the elastic sheet.When the pressure in the bag is too high, the gas overcomes the elastic force of the elastic sheet to open the sealing block and relieve the pressure.After pressure relief, the elastic sheet drives the sealing block to reset and restore the seal.The pressure relief box is also provided with a slidable limiting rod to limit the movement of the elastic sheet.The self-supporting bag can automatically relieve pressure and restore the seal, preventing accidental opening during transportation, and improving the safety and reliability of use.
Owner:ZHEJIANG FANGDING PACKAGING TECH CO LTD
A water tank level control device and method, a water tank device and a sanitary washing device
ActiveCN113356316BExtended service lifeReduced sealing requirementsFlushing devicesLavatory sanitoryEnvironmental engineeringMechanical engineering
The application discloses a water tank liquid level control device and method, a water tank device and a sanitary cleaning device. The water tank liquid level control device comprises a water tank, a water inlet, a water outlet and an exhaust hole; a floating body and a pressure detector for detecting the internal pressure of the water tank; the floating body is located in the water tank and floats up with the rising of the liquid level in the water tank; the floating body limits the exhaust of the gas in the water tank from the exhaust hole when floating to the highest position; and when the internal pressure of the water tank increases to be greater than or equal to a first preset value, the pressure detector outputs a pressure signal for controlling the water tank to stop water inflow. The application adopts the floating body to control whether the water tank exhausts during water inflow; and when the exhaust hole does not exhaust, the pressure detector detects the increase of the internal pressure of the water tank and outputs a pressure signal for controlling the water tank to stop water inflow. Therefore, the pressure detector of the application does not need to contact with the liquid, the sealing requirement is low, the cost is reduced, and the service life of the pressure detector is prolonged.
Owner:XIAMEN KEMU INTELLIGENT TECH
A boiler waste heat recovery device
The utility model relates to a waste heat recovery technical field especially a boiler waste heat recovery device, including heat exchange furnace and setting up in the heat exchange furnace one side's air exchange subassembly, the air exchange subassembly passes through fixed assembly with heat exchange furnace fixed, the upside of air exchange subassembly is provided with the adjusting assembly for adjusting the pressure intensity of air exchange subassembly and is positioned to the positioning assembly for adjusting assembly, the utility model discloses through air exchange subassembly to can realize automatic pressure relief when in stove pressure overrun, effectively prevent the security risk caused by the overhigh air pressure, and simultaneously is equipped with adjusting assembly, can according to actual working condition flexible adjustment exhaust pressure threshold value, ensure that the system can keep the best operating state under different working environment.
Owner:DONGGUAN ZHONGPU ENVIRONMENTAL TECH CO LTD