60results about How to "Realize automatic exhaust" patented technology

The present invention relates to dishes making machine, and is especially one kind of numerically controlled and electrically heated dishes making machine, which includes a casing, a wok, a bottom cover, a stirring paddle, an automatic water providing system, an automatic heat circulating system, an automatic oiling system, an automatic cleaning system, and an automatic venting system. The intelligent cooking apparatus of the present invention performs digital control on the cooking process parameters.

A multifunctional automatic adjuster comprises an air and water separator, a positive and negative pressure protector, an air pipe and a methane pipe. The methane pipe comprises a left methane branch and a right methane branch, one ends of the left methane branch and the right methane branch are communicated with a methane area in a fermenting tank, the other ends of the left methane branch and the right methane branch extend into the positive and negative pressure protector and the air and water separator, one end of the air pipe is communicated with a pressurizing fan, the other end of the air pipe extends into the positive and negative pressure protector, the top of the positive and negative pressure protector is provided with an exhaust port, a water inlet pipe is arranged on the sidewall of the positive and negative pressure protector close to the top, a water outlet is arranged at the position of the positive and negative pressure protector near the bottom, the other end of thewater outlet is communicated with a straight discharge valve, and a plurality of water level pressure adjusting valves connected in parallel are arranged between the straight discharge valve and the water inlet pipe vertically. The multifunctional automatic adjuster is fine in energy saving and high in automaticity and has multiple functions of automatic air and water separation, automatic water discharge and replenishment, automatic air exhaust, synchronous methane leakage waste prevention, negative pressure protection, automatic constant pressure keeping and the like.

The invention provides a blood pressure collecting terminal and a method and coronary analysis system for obtaining the arterial blood pressure. The blood pressure collecting terminal comprises a body, and a first power driving device, a blood pressure collecting device and a first control device which are all connected with the body. The first power driving device is arranged on the body and usedfor driving liquid in an external infusion device to flow. The blood pressure collecting device is arranged on the body and connected with the first control device and an external interventional device and is used for collecting the arterial blood pressure. The first control device is connected with the external infusion device and used for controlling the liquid flowing direction of the infusiondevice so that liquid can flow from the infusion device to the first control device. By turning on the first control device, the blood pressure collecting device is communicated with the external infusion device and the atmosphere at the same time, the first power driving device drives liquid in an infusion pipe to flow, automatic gas exhausting is realized, and operation is simple and convenient.

The invention relates to a self-adaption continuous infusion apparatus. The self-adaption continuous infusion apparatus comprises an upper half part and a lower half part, and is characterized in that the upper half part is provided with a bottle plug puncture device (2) and a bottle plug puncture device protection cover, the upper end of the bottle plug puncture device (2) is used for puncturing through a bottle plug of a to-be-infused bottle, and the bottle plug puncture device protection cover is fixedly arranged on the bottle plug puncture device (2) to protect the bottle plug puncture device (2). In the self-adaption continuous infusion apparatus, the situations are avoided that infusion is automatically stopped after infusion is completed, the blood return phenomenon is caused when nurses do not attend on patients timely and the liquid level drops to a too low level, more seriously, gas enters the human body, which results in bad results like aeroembolism, or when multiple infusion bottles are infused continuously, if the liquid level is lower than the lower part of a Murphy's dropper, air exhaust needs to be conducted again or intravenous injection needs to be conducted again; meanwhile, to prevent the situation that the liquid level is lower than the Murphy's dropper, the nurses, patients and relatives need to conduct nursing in real time, which results in unnecessary tension and psychological burdens of the three parties, therefore, the psychological burden in seeking medical service can be sharply lowered through automatic stopping of infusion, and thus the comfort in seeking medical service is improved.

The invention discloses a disposable infusion device. The infusion device includes an infusion catheter, a dropping hopper, an anti-bubble liquid dropping device, a dropper body, a liquid inlet hole,a dropper body fixing base, a dropper body connecting catheter, a vent hole, an air inlet plug, a liquid inlet pipe, a liquid inlet needle, an air pressure balancing needle, a balancing pipe and a heavy ion microporous film; the integral anti-bubble liquid dropping device is composed of the dropper body above, the dropper body fixing base in the middle, the dropper body connecting catheter below and the heavy ion microporous film fixed into the dropper body connecting catheter; by additionally arranging the heavy ion microporous film, after infusion is finished, partial medicinal liquid can remain on the heavy iron microporous film, blood reflux caused by complete dropping of the medicinal liquid is avoided, and liquid stopping is achieved at the same time; the infusion catheter and the dropping hopper adopt modified polyvinyl chloride as a raw material, not only is the physical mechanical performance of a traditional polyvinyl chloride material preserved, but also complete degradationis achieved, pollution is not caused to the environment, and environmental protection is facilitated. Moreover, since DEHP and other toxic additives are not added during preparation, important indicators such as heavy metal content and cytotoxicity are all superior to those of congeneric polyvinyl chloride products, and the infusion device is much safer to use.

The invention relates to a self-adaption continuous infusion apparatus. The self-adaption continuous infusion apparatus comprises an upper half part and a lower half part, and is characterized in that the upper half part is provided with a bottle plug puncture device (2) and a bottle plug puncture device protection cover, the upper end of the bottle plug puncture device (2) is used for puncturing through a bottle plug of a to-be-infused bottle, and the bottle plug puncture device protection cover is fixedly arranged on the bottle plug puncture device (2) to protect the bottle plug puncture device (2). In the self-adaption continuous infusion apparatus, the situations are avoided that infusion is automatically stopped after infusion is completed, the blood return phenomenon is caused when nurses do not attend on patients timely and the liquid level drops to a too low level, more seriously, gas enters the human body, which results in bad results like aeroembolism, or when multiple infusion bottles are infused continuously, if the liquid level is lower than the lower part of a Murphy's dropper, air exhaust needs to be conducted again or intravenous injection needs to be conducted again; meanwhile, to prevent the situation that the liquid level is lower than the Murphy's dropper, the nurses, patients and relatives need to conduct nursing in real time, which results in unnecessary tension and psychological burdens of the three parties, therefore, the psychological burden in seeking medical service can be sharply lowered through automatic stopping of infusion, and thus the comfort in seeking medical service is improved.

The invention discloses an automatic exhaust device for a transformer gas relay, and relates to the field of transformer maintenance auxiliary equipment. After gas appears inside the gas relay and anirregularly-shaped air bag is filled with gas, the irregularly-shaped air bag is expanded, a first sliding block is pushed to move downwards through the repulsive force of a magnet and a magnet blockwith same polarity, and then a second sliding block is pushed to move outwards through the wedge-shaped cooperation of the contact end face of the first sliding block and the second sliding block, sothat a broken exhaust pipeline and an oil supply pipeline are opened, automatic exhaust and oil supply are realized, and then the normal positions of the first sliding block and the second sliding block are recovered to close the exhaust pipeline and the oil supply pipeline by using the combined action of the reduction of the repulsive force of the shrunk magnet and the magnet block of the irregularly-shaped air bag in the gradual gas exhaust process. The device solves the problems that an existing gas relay exhaust device is easy to misdetect whether a fault appears in a transformer and oil cannot be supplied automatically, and is mainly used for automatically exhausting gas and supplementing transformer oil consumed inside the gas relay.

The invention relates to the technical field of marine aquaculture equipment, and discloses an oxygenating device for a deep sea aquaculture net cage. The device comprises a net frame, wherein the outer portion of the net frame is fixedly sleeved with a pedal, the bottom of the net frame is fixedly provided with an annular plate, the inner wall of the annular plate is fixedly provided with a supporting rod, the other end of the supporting rod is fixedly provided with a supporting disk, the bottom face of the supporting disk is fixedly provided with a fixing pipe, and the bottom end of the fixing pipe is movably sleeved with a driving box. Through the guide action of a guide plate in flowing seawater, the orientation of a water inlet is always opposite to the direction of seawater flowing,so that the flowing seawater enters the inner portion of the driving box through the water inlet and a water inlet hole and pushes a driving water wheel to rotate clockwise to provide continuous powerfor the oxygenating device, thereby saving energy and protecting the environment, reducing the cost of the net cage breeding marine organisms, reducing the labor amount of workers, and increasing thepractical value of the deep sea aquaculture net cage.

The invention provides a rubber fishing pontoon which comprises a cylindrical rubber pontoon body. Hemispheric rubber end sockets are integrally connected to the two ends of the rubber pontoon body. Flange cover boxes are connected to the outer sides of the ends of the rubber end sockets. Buffering cavities are formed in the flange cover boxes. Inflation one-way valves, stop valves and safety valves which all communicate with the corresponding buffering cavities are arranged on the end faces of the outer sides o the flange cover boxes. Air nozzles are integrally connected to the ends of the rubber end sockets. One end of each air nozzle communicates with the corresponding rubber pontoon body and the other end of each air nozzle communicates with the corresponding buffering cavity. The rubber fishing pontoon has the beneficial effects that the pontoon is made of rubber and is flexible, capable of achieving the vacuum state, easier to fold, small in occupied volume, low in weight, easy to transport and capable of achieving the functions such as inflation leakage prevention, automatic exhausting, emergency exhausting and valve set protection and guaranteeing the safety of the inner pressure of the pontoon body.

The invention relates to the technical field of automobiles, and particularly discloses an exhaust control method for a gas-driven urea pump system. The exhaust control method comprises the followingsteps of: S1, judging whether a key door is powered off or not, if so, entering step S2, and if not, entering step S3; S2, judging whether the gas pressure in a urea box is in a preset range and the environment temperature is higher than a preset temperature at the same time or not, if yes, not exhausting the urea box, and if not, exhausting the urea box; and S3, judging whether the rotating speedof an engine is zero, the current fuel injection quantity is zero, the vehicle speed is zero and the accelerator pedal opening degree is not smaller than a preset value within preset time at the sametime or not, if yes, exhausting the urea box, and if not, not exhausting the urea box. By means of the exhaust control method, the problems that the urea box is frequently exhausted, air consumptionof an air compressor is wasted, personnel safety cannot be guaranteed during manual exhaust, and threads of a urea box cover are abraded can be solved.

The invention discloses a pipeline heating deflation valve and a rotation closed type hydraulic system of a crane, and belongs to the field of a closed type hydraulic system. The pipeline heating deflation valve comprises a stop valve, an overflow valve, a first throttler and a one-way valve, wherein an oil outlet of the stop valve is communicated with an oil inlet of the overflow valve; an oil inlet of the stop valve is communicated with an oil inlet of the first throttler; an oil outlet of the first throttler is communicated with an oil outlet of the one-way valve; an oil inlet of the one-way valve is communicated with an oil outlet of the overflow valve; a pipeline between the oil outlet of the one-way valve and the oil outlet of the first throttler is provided with an oil leakage opening; and the rotation closed type hydraulic system of a crane comprises the pipeline heating deflation valve. According to the pipeline heating deflation valve, the stop valve can be closed to realize automatic exhaust; the stop valve is opened, oil liquid passes through the overflow valve, and the overflow valve can be used for carrying out circulation heating on the oil liquid in the pipeline of the closed type hydraulic system; if the oil liquid contains gas, the gas can pass through the one-way valve along with the oil liquid to be discharged to the oil leakage opening and outflow, so that the automatic exhaust is realized.

The invention discloses a transformer fault self-reporting control system and a control method thereof, and belongs to the technical field of transformer internal fault monitoring equipment. The system has remote monitoring and management capability, can perform remote monitoring and management on fault horizontal coordinate positions, fault types and fault severity in a transformer by utilizing gas generated at a burnt-out part of a power transformation part in a transformer oil tank, and can remotely check whether transformer oil goes bad or not. A sealing box is arranged above the transformer oil tank, the gas inlet end of a gas color observation mechanism is connected to the upper pipe opening of a first vertical pipe, a gas smell detection mechanism is arranged in the gas color observation mechanism, and a gas volume detection mechanism is arranged in the gas color observation mechanism. The gas inlet end of a gas flammability detection mechanism is connected to the side wall exhaust hole of the first vertical pipe, an oil color checking mechanism is in communication loop connection with the tank cavity of the transformer oil tank through an insulation guide pipe A and an insulation guide pipe B, and a bubble horizontal coordinate positioning detection mechanism is arranged in the transformer oil tank.

The invention provides fermentation equipment for fruit wine. The fermentation equipment includes a fermentation tank, a separation device, an adjustment device and a gas balance device; the separation device includes a motor, a stirring paddle and a separation cylinder; the adjustment device includes an air cylinder and a baffle, the air cylinder is arranged below the fermentation tank, the baffle is connected to the output end of the air cylinder, and the baffle is arranged at the bottom of the separation cylinder to seal a bottom outlet of the separation cylinder; and the gas balancing device includes a connecting pipe and a balancing mechanism, the balancing mechanism includes a gas discharge box, a gas discharge plate and a gas discharge component are arranged in the gas discharge box, the gas discharge plate divides the gas discharge box into two independent compartments in the horizontal direction, and the two independent compartments are a compartment I and a compartment II from the left to the right. The fermentation device can separate peel residues and the fruit wine in the fermentation process, can effectively reduce the loss of the fruit wine, ensures that the air pressure in the tank is constant, realizes the automatic exhaust of the fermentation tank, and increases the fermentation effect of the fruit wine.

The invention discloses a centrifugal pump exhaust device. The centrifugal pump exhaust device comprises a centrifugal pump, and a ventilation pipeline connected with the centrifugal pump; a switch isarranged on the ventilation pipeline; and a controller controls opening or closing of the switch. The centrifugal pump exhaust device further comprises a liquid level sensor for detecting a liquid level; when the liquid level sensor detects that the liquid level in a liquid box reaches a preset opening liquid level, the liquid level sensor transmits signals to the controller, and the controller controls opening of the switch; and after preset time, the controller controls closing of the switch, and the centrifugal pump is started to operate. The centrifugal pump exhaust device can realize automatic exhausting, is convenient to manage the centrifugal pump, and effectively reduces the management cost. The invention further discloses a centrifugal pump exhaust method and a centrifugal pump control system.

The invention relates to an Internet of Things-based community waste recycling biogas digester. The Internet of Things-based community waste recycling biogas digester comprises a digester body, a feeding mechanism, a fertilizer recovering mechanism, a water pressure chamber and a gas releasing mechanism, wherein the gas releasing mechanism comprises a gas releasing pipe, a top cover and a releasing module, the gas releasing module comprises a lifting board, a transmission rod, a support and a gas releasing unit, and the gas releasing unit is composed of a slider, guide rails, an extension spring and a limit block; the digester body is provided with a central control mechanism which comprises a working power module, and the working power module comprises a working power circuit. According to the Internet of Things-based community waste recycling biogas digester, the gas releasing mechanism can achieve automatic gas releasing of the biogas digester for collecting biogas, so that practicality of the biogas digester can be improved; meanwhile, the type of circuit integrated in the working power circuit is uA723, which can keep a stable working state during fluctuations of input voltage, so that the working stability and reliability of the biogas digester can be greatly improved.

The invention discloses an ECMO simulation training human body model convenient to exhaust, which comprises a model main body and a simulated heart container arranged on the model main body, the simulated heart container is provided with a main vein tube and an aortic tube, the main vein tube is connected with a vein branch tube, the vein branch tube is detachably connected with a vein needle insertion tube, the aortic tube is connected with a carotid artery tube, and the carotid artery tube is detachably connected with a vein needle insertion tube. The upper end of the carotid artery tube is detachably connected with a first artery needle inserting tube, the upper end of the first artery needle inserting tube is connected with an exhaust funnel communicated with the first artery needle inserting tube, an exhaust hole is formed in the upper end of the exhaust funnel, a floating block capable of floating on the water surface is arranged in the exhaust funnel, and an air inlet communicated with the first artery needle inserting tube is formed in the lower end of the exhaust funnel. And a sealing structure capable of sealing the exhaust hole when the floating block is in a floating state is arranged between the floating block and the exhaust funnel. The human body model can be applied to ECMO simulation practical training, and air in the liquid channel can be conveniently exhausted in the simulation practical training.

The invention discloses an exhaust system for a ballast pump of an oil tanker and belongs to the field of marine equipment. The exhaust system comprises a gas circuit portion and a circuit portion. The gas circuit portion comprises a lower pressure gas source, a high pressure gas source, an electromagnetic valve, a gas control valve and a vacuum sprayer. The circuit portion comprises a control module and a liquid level detector. The control end of the electromagnetic valve is electrically connected to the control module; the liquid level detector is electrically connected to the control module for detecting the liquid level in a housing of the ballast pump; when the liquid level in the ballast pump is lower than a set height, the control module can control the electromagnetic valve to be connected; when the liquid level in the ballast pump is raised to the set height, the control module controls the electromagnetic valve to be disconnected, so that the ballast pump exhausts automatically; as the electromagnetic valve is adopted to control the lower pressure gas source which then controls the high pressure gas source, the electromagnetic valve can be arranged in a safe region where the oil gas concentration is relatively low to avoid the probability of generating electric sparks to ignite the oil gas when the electromagnetic valve acts, so that the exhaust system is safer.

The invention discloses a liquid box and a liquid circulation device. The liquid box comprises a box body, a partition plate arranged in the box body, and an exhaust tube for communicating the internal of the box body with an external environment; the partition plate divides the box body into a liquid inlet chamber and a liquid outlet chamber, the bottom of the liquid inlet chamber is communicatedwith the bottom of the liquid outlet chamber, and the top of the liquid inlet chamber is communicated with the top of the liquid outlet chamber; and the partition plate is used for blocking bubbles generated in the liquid inlet chamber from flowing to the liquid outlet chamber, and the exhaust tube is used for discharging the overflowing bubbles. The problems of incomplete avoiding of the bubblesfrom being sucked into a circulation pipeline by a pump body, troublesome operation and liquid leakage risk of manual exhaust are solved, and the liquid box has the advantages of realization of automatic exhausting, prevention of the generated bubbles from entering the liquid circulation pipeline, reduction of the risk of liquid leakage, simple structure and low cost.

The invention relates to a self-venting bubble-free infusion set, which comprises a body comprising a venting tube connected with a lower catheter and a buffer body arranged in a dipper. The upper and lower ends of the venting tube are communicated; at least one venting groove is formed on a middle part of a side wall of the venting tube; the upper part of the venting tube is connected with the buffer body; the buffer body comprises a buffer surface and a handle connected with the buffer surface, wherein the handle has a hollow structure and is sealed on a part close to the buffer surface; and a circular air vent is formed at the lower end of the handle close to the sealed part. The self-venting bubble-free infusion set has the advantages that: automatic venting is realized through only one bottle inserting action during infusion, bubbles are not generated, and the infusion set is easy to operate and safe and reliable.

The invention discloses a carriage of a single rack soot blower. The carriage comprises a motor and a reduction box connected to the motor. A worm wheel and a worm for deceleration are arranged in thereduction box, the lower part of a side end, facing the motor, of the reduction box is of a cylindrical structure for accommodating the worm wheel, the bottom of the cylindrical structure is lower than the bottom of the other side end of the reduction box, a ventilating device for outward exhausting is arranged on the top of the reduction box, an oil filling port is formed in the front surface ofthe reduction box, an oil level gauge connected to the oil filling port is arranged at the oil filling port, and an oil penetration hole for enabling oil to penetrate between the worm wheel and the worm is formed in the oil level gauge. Wear of the worm wheel and the worm in the reduction box can be reduced effectively by means of improvement of the carriage.

The invention belongs to the technical field of pump bodies and particularly relates to a shield electric pump. The shield electric pump comprises a shield motor and a pump body. The pump body is fixedly connected to the shield motor. The shield motor comprises a motor shell, an impeller and a rotating shaft. A front bearing block and a rear bearing block are arranged in the motor shell. A shaft sleeve and a bearing are arranged in each of the front bearing block and the rear bearing block. The two ends of the rotating shaft are connected with the bearing in the front bearing block and the bearing in the rear bearing block correspondingly. The impeller is located in the pump cavity and fixedly connected with the rotating shaft. The shield electric pump has the beneficial effects that the conveying efficiency is improved by removing independent circulating liquid, and waste is avoided; the direction of a liquid outlet is the same with that of the shaft, and the liquid outlet is conveniently installed in a pipeline to become part of the pipeline; and due to the wholly-sealed structure of the shell, the structure can be reliable, guide vanes and the bearing blocks are integrally designed, so that the structure is small and exquisite, and the occupied space is small.

The invention discloses a circuit-breaker automatic air exhaust alarm device, and the device comprises a hydraulic oil warehouse. An air exhaust mechanism, a flame-retardant chamber and an alarm unit are disposed above the hydraulic oil warehouse. The air exhaust mechanism comprises a valve body, and the interior of the valve body is provided with a vertical piston channel and an air exhaust channel. The interior of the piston channel is provided with a piston rod and a piston, and the upper end of the piston rod is provided with a first push force spring. The central part of the air exhaust channel is provided with an air exhaust chamber, and the interior of the air exhaust chamber is provided with a cylindrical rod, wherein the vertical rod can block the air exhaust channel. A lateral connection channel is disposed between the air exhaust chamber and the piston channel, and the interior of the connection channel is provided with a movable rod. One end of the movable rod is connected with the vertical rod, and the other end of the piston rod is provided with an arc-shaped part. The piston rod is provided with an arc-shaped groove cooperating with the arc-shaped part. A lateral second push force spring is disposed between the vertical rod and the air exhaust chamber. The device can achieve the automatic air exhaust of the hydraulic oil warehouse, also can be manually controlled to be started through the alarm unit according to the needs or the condition of oil gas pressure, is simple in structure, and is good in safety.

The invention relates to an efficient separate packaging device, in particular to an efficient separate packaging device for PP compatilizer production. Aiming at the technical problem, the invention provides the efficient separate packaging device for PP compatilizer production which is capable of automatically separately packaging a compatilizer and is relatively high in separate packaging efficiency. According to the technical scheme, the efficient separate packaging device comprises a frame body, first baffles, a first support, a material storage box and a discharging pipe and further comprises a torsion spring, a blocking block, a second baffle and a discharging mechanism, wherein the two sides of the frame body are each rotationally connected with the two first baffles, the first support is arranged in the middle of the side, away from the first baffles, of the frame body, and the material storage box is arranged at the upper portion of the first support; and the side, close to the frame body, of the material storage box is rotationally connected with a discharging pipe. According to the efficient separate packaging device, through cooperation of a flapping mechanism and a transmission mechanism, when the PP compatibilizer is separately packaged, the PP compatibilizer can be prevented from being stacked at one position, and manual operation is not needed.

The invention discloses a transformer internal fault monitoring system and a control method thereof, which belong to the technical field of transformer internal fault monitoring equipment, have remote monitoring and management capability, and can perform remote monitoring and management on fault horizontal coordinate positions, fault types and fault severity in a transformer by using gas generated at a burnt-out part of a power transformation part in a transformer oil tank. Asealing box is arranged above thetransformer oil tank, the gas inlet end of a gas color observation mechanism is connected to an upper pipe opening of a first vertical pipe, a gas smell detection mechanism is arranged in the gas color observation mechanism, a gas volume detection mechanism is arranged in the gas color observation mechanism, the gas inlet end of a gas flammability detection mechanism is connected to a side wall exhaust hole of the first vertical pipe, and a bubble horizontal coordinate positioning detection mechanism is arranged in the transformer oil tank.

The invention relates to a self-venting bubble-free infusion set, which comprises a body comprising a venting tube connected with a lower catheter and a buffer body arranged in a dipper. The upper and lower ends of the venting tube are communicated; at least one venting groove is formed on a middle part of a side wall of the venting tube; the upper part of the venting tube is connected with the buffer body; the buffer body comprises a buffer surface and a handle connected with the buffer surface, wherein the handle has a hollow structure and is sealed on a part close to the buffer surface; and a circular air vent is formed at the lower end of the handle close to the sealed part. The self-venting bubble-free infusion set has the advantages that: automatic venting is realized through only one bottle inserting action during infusion, bubbles are not generated, and the infusion set is easy to operate and safe and reliable.

The invention relates to rehabilitation training equipment, in particular to lung function rehabilitation training equipment for pneumology department patients. According to the lung function rehabilitation training equipment for the patient in the pneumology department, the breathing mask can be detached and replaced, and cross infection is avoided. A respiratory department patient lung function rehabilitation training device comprises a base, a mounting frame, a shell, a mounting disc, a hose and the like. Mounting frames are arranged on the front side and the rear side of the top of the base, a shell is arranged on the right side of the top of the base, and mounting discs are arranged on the front side and the rear side of the center of the shell. The breathing mask covers the mouth and the nose of a patient, air is blown into the hose to enable the air bag to be expanded, the vital capacity is exercised, the aim of lung function rehabilitation training is achieved, after training is completed, air blown into the breathing mask by the patient is exhausted through the exhaust port, and meanwhile, due to the fact that the breathing mask is detachable and replaceable, the cross infection situation is effectively avoided.

The invention belongs to the technical field of isostatic presses, and discloses a lifting cylinder cover assembly of an isostatic press, comprising: a cylinder cover, an additional connecting rod, a connecting structure, a lifting plate, and a lifting drive device for driving the lifting plate to lift; The cover is connected with the lifting plate through the connection structure; the two ends of the additional connecting rod are respectively connected with the cylinder head and the lifting plate; the lifting drive device includes a bottom plate, a top plate, an induction device, a synchronous belt assembly, a plurality of screw rods and a plurality of guide columns; each The two ends of each guide post are respectively connected to the bottom plate and the top plate, and each guide post runs through the lifting plate and is slidably matched with the lifting plate; the two ends of each screw rod are respectively connected to the bottom plate and the top plate in rotation, and each screw rod Both are threaded with the lifting plate; the synchronous belt assembly has two layers from top to bottom, and each layer of synchronous belt assembly includes multiple synchronous pulleys and synchronous belts wrapped around multiple synchronous pulleys; each synchronous belt A plurality of synchronous pulleys of the assembly are respectively fixed on the upper ends of the plurality of screw rods.

The invention particularly discloses a mistake-proof device for an airtight tank. The device comprises an airtight tank body, an airtight tank fastening device, an airtight tank cover, an airtight tank body annular support, a table top fixing block, an airtight tank cover limiting block, a long rotating roller, an airtight tank cover fixing frame, a short rotating roller, an airtight tank cover fixing hook, an electromagnet, a button contact switch, a pressure gage, a power source, a first relay, a second relay and a timer. The airtight tank cover and the airtight tank body are connected together, so that the hidden danger that the airtight tank cover flies out to hurt people is eliminated. Meanwhile, according to the mistake-proof device for the airtight tank, during ventilation, only the ventilation time and the negative pressure value of the airtight tank need to be set, automatic exhaust and cover opening of the airtight tank can be achieved, personnel life dangers caused by misoperation of operators are avoided, and safety and working efficiency are improved.

The invention discloses a converter system and a converter cooling water system, wherein the converter cooling water system comprises: a cooling water pipeline, an automatic exhaust box and a gas collecting pipe; the cooling water pipeline is located in the converter cooling water The highest position at the top of the system; the inlet of the gas header is connected to the cooling water pipeline, and at least the inlet part of the gas header is located above the cooling water pipeline, and the outlet of the gas header is connected to the exhaust box inlet of the automatic exhaust box; when When the gas pressure value in the automatic exhaust box is greater than the preset critical pressure value of the automatic exhaust box, the automatic exhaust box can automatically discharge the gas. In this solution, the gas collecting pipe is connected above the highest pipeline at the top of the cooling water system of the converter, so that the entrained air with high flow velocity can float into the gas collecting pipe through the buoyancy effect of the gas, so as to realize the control of the entrained air. collected, and then flowed into the automatic exhaust box, thereby realizing automatic exhaust of the cooling water system of the converter.