1287results about How to "Stable pressure" patented technology

The invention discloses an intelligent hydrogen production system and method.The intelligent hydrogen production system comprises a water supply device, a hydrogen production device, a purification device, a hydrogen conveying device, a pressure relief device, a system monitoring unit and a system control unit.The liquid level of a water tank is detected through a first liquid level meter, and the temperature of pure water of the water tank is detected through a first temperature sensor; the conductivity of water treated by the water machine is detected through the first conductivity meter so as to judge the purity degree of the water, the conductivity of electrolyzed water entering the electrolytic bath is detected through the second conductivity meter, the temperature of the electrolyzed water in the electrolytic bath is detected through the second temperature sensor, and it is guaranteed that the water quality and the water temperature in the electrolytic bath meet the electrolysis requirement. The liquid level of separated water in the water-vapor separator is detected through the second liquid level meter, the dew-point temperature of hydrogen is detected through the dew-point meter, and the actual output flow of hydrogen flowing through the hydrogen outlet is detected through the flow meter. The water temperature, the water level, the hydrogen flow, the conductivity and the like can be monitored, safe and efficient operation of equipment is ensured, and potential safety hazards are prevented.

The invention discloses a CTC cell detection method based on a micro-fluidic chip, and belongs to the technical field of cell treatment. In order to solve the problems of high false positive and false negative rates, time consumption and low efficiency caused by difficulty in accurately distinguishing CTC from other cell types, the invention can efficiently and specifically capture CTC cells, reduce the possibility of false positive and false negative and improve the detection accuracy by constructing a specific capture chamber and filling specific antibodies and immunomagnetic beads. The multi-channel design allows a plurality of samples to be processed at the same time, the detection efficiency is improved, the micro-fluidic chip technology integrates a plurality of steps on one platform, automation and standardization of operation are achieved, personal errors are reduced, the stability and repeatability of detection are improved, the uniformity and stability of the detection process are ensured, and the detection efficiency is improved. The fluorescence imaging technology clearly displays CTC and obtains key parameters such as quantity, form and fluorescence intensity of CTC, thereby providing powerful support for cancer diagnosis and research.

The invention discloses a corrosion chambering device and method for etched foils, and relates to the technical field of etched foils, the corrosion chambering device comprises a working plate and further comprises a positioning device, a placing frame is fixedly mounted at the top of the working plate, a U-shaped plate is fixedly mounted on the front side of the placing frame, and traction equipment is fixedly mounted at the top of the working plate; a corrosion table is fixedly mounted at the top of the working plate, a corrosion frame is fixedly mounted at the top of the corrosion table, a placement groove is formed in the top of the corrosion frame, a placement rod is fixedly mounted in the placement groove, displacement equipment is slidably mounted on the circumferential surface of the placement rod, and a positioning block moves in the direction close to a foil to drive a positioning rod and a positioning frame to move; the positioning frame moves to be in contact with the foil to be corroded and performs positioning correction on the foil, and through pre-positioning correction, the actual position of the hole can be ensured to be consistent with the design requirement, and the hole position problem caused by position deviation is avoided.

The invention relates to an impact reduction structure of an initiating explosive device, and belongs to the technical field of spacecraft impact protection. The base is of a hollow cone structure which is vertically placed; the pressed piece is coaxially placed on the upper surface of the top of the base. The initiating explosive device is coaxially arranged on the lower surface of the top of the base; a threaded gasket is arranged between the flange of the firer device and the lower surface of the top of the base; the installation screws are evenly distributed on a flange of the firer device in the circumferential direction, and the firer device is connected with the top of the base through the installation screws. A spherical groove is formed in the center of the upper surface of the pressed part; the spherical pad is embedded in the spherical groove; the locking nut is arranged on the horizontal upper surface of the spherical pad; the pressing rod is vertically arranged, and the pressing rod sequentially penetrates through the locking nut and the spherical pad from top to bottom and is in threaded connection with the hot working device; the internal structure of the pyrotechnic device is not changed, the connection rigidity is not weakened, and the problem that the unlocking impact response of the pyrotechnic device is too large is solved.

The invention discloses a hydrogen fuel cell unmanned aerial vehicle hydrogen cylinder positioning device which comprises a front fixing plate, a rear fixing plate is installed on the rear portion of the front fixing plate through a connecting rod, a tightening sliding groove is formed in the surface of the front fixing plate, and a tightening sliding bolt is embedded in the tightening sliding groove. A tightening supporting rod is installed below the tightening sliding bolt through a bolt, a tightening sliding plate is slightly attached to the outer side of the tightening supporting rod, a tightening sliding plate is installed on the inner surface of the rear fixing plate through a tightening supporting block, a tightening protection plate is welded to one end of the tightening supporting rod, and a tightening wheel is installed in the tightening protection plate through a bearing; an adjusting sliding groove is formed in the surface of the front fixing plate, and an adjusting moving bolt is embedded in the adjusting sliding groove. By means of the supporting legs, the hydrogen cylinder support, the gas guide structure and the downward pressing top seat, the problems that according to an existing hydrogen fuel cell unmanned aerial vehicle hydrogen cylinder positioning device, the hydrogen cylinder is still installed at the upper position, the flight stability of an unmanned aerial vehicle is likely to be affected, the hydrogen cylinder is unstable after being installed and likely to shake in the flight process, and the unmanned aerial vehicle cannot work easily are solved. And rapid mounting and dismounting are not convenient.

The utility model discloses a compact and stable type automatic plate edge banding machine, which relates to the technical field of plate edge banding, and comprises a rack, a chain plate conveying belt, a guide pressing plate assembly, a pre-milling assembly, a gluing assembly, a plate joint strip assembly, a flush assembly, a fine trimming assembly, a scraper assembly and a polishing wheel. The compact and stable plate edge sealing equipment is formed, the independent and integrated gluing assembly and the integrated cavity are adopted, the coaxiality is good, the gluing uniformity cannot be affected, the front end and the tail end of a plate joint strip are cut off in a tracking mode, the cutter thrust is small, the stability is good, the upper portion and the lower portion of the plate joint strip are simultaneously refined, resonance influences are mutually reduced in an abutting mode, vibration is reduced, and the edge trimming precision is high; the fine adjustment spring is arranged, so that the distance between the fine trimming mechanism and the scraper mechanism can be finely adjusted, stable pressure is formed between the fine trimming mechanism and the scraper mechanism and the plate joint strip, the distance between the plate joint strip and a fine trimming cutter or a scraper is conveniently controlled, and fine trimming or scraping is more stable and better in effect.

The invention provides swimming pool cleaning equipment, and relates to the technical field of swimming pool cleaning. The swimming pool cleaning equipment comprises a base body which comprises a bottom face and a containing cavity, and a liquid inlet communicated with the containing cavity is formed in the bottom face. And the rolling brush is rotationally connected with the base body, and the rolling brush and the liquid inlet are arranged in a spaced mode in the advancing direction of the swimming pool cleaning equipment. And the turbidity detection device is arranged on the bottom surface of the base body, is positioned between the liquid inlet and the rolling brush, and is used for detecting the turbidity of the liquid. In the advancing direction of the swimming pool cleaning equipment, the distance between the turbidity detection device and the central axis of the liquid inlet is a first distance, the minimum distance between the turbidity detection device and the rotating central axis of the rolling brush is a second distance, and the first distance is larger than the second distance. According to the swimming pool cleaning equipment provided by the embodiment of the invention, the turbidity of the liquid can be accurately measured, so that the swimming pool cleaning equipment can more intelligently plan a cleaning path, key areas are ensured to be fully cleaned, unnecessary repeated cleaning is reduced, and then the cleaning efficiency is improved.

The invention relates to the technical field of earthquake detection, and discloses a constant-pressure online detection device and method for the concentration and flow of gas escaped from a hot spring, and the device comprises a gas collecting hood, a buffer bottle, a gas flow detector, a constant-volume gas storage chamber, a constant-pressure detection valve, an online gas detector and a central controller; the gas collecting hood is arranged in a corresponding area of hot spring escape gas and collects the hot spring escape gas; the gas inlet end of the surge flask is communicated with the gas collecting hood through a pipeline, and the gas outlet end is communicated with the gas inlet end of the constant-volume gas storage chamber through a gas flow detector; the constant-volume gas storage chamber is communicated with an on-line gas detector pipeline through a constant-pressure detection valve, and when the air pressure value of hot spring escape gas stored in the constant-volume gas storage chamber is larger than a preset air pressure threshold value, the hot spring escape gas enters the on-line gas detector through the constant-pressure detection valve; the on-line gas detector is used for detecting gas components and concentration of gas escaped from the hot spring and sending detection data to the central controller.

The invention discloses an environment-friendly waterproof paint spraying device and method, and relates to the technical field of environment-friendly spraying, the environment-friendly waterproof paint spraying device comprises a bottom plate and further comprises a material uniformizing device, a liquid storage barrel is fixedly mounted at the top of the bottom plate, a feeding pipe is fixedly mounted at the top of the liquid storage barrel, and a discharging pipe is fixedly mounted on the circumferential surface of the liquid storage barrel; a high-pressure pump is fixedly installed on the left side of the discharging pipe, a hose is arranged on the right side of the high-pressure pump, a high-pressure spray head is arranged at the end, away from the bottom plate, of the hose, and the material uniformizing device comprises a servo motor, a stirring rod, a hollow rod, a driving rod, a stabilizing block, an arc-shaped plate and an extrusion block; the coating in the liquid storage barrel can be effectively turned over through the reciprocating movement of the cambered surface plate, and the coating is prevented from being precipitated or layered in the storage process, so that the quality of a sprayed coating is improved, and the phenomenon of bubbles or uneven spraying is reduced.

The invention belongs to the technical field of welding fixtures, and particularly relates to a welding fixture for question and answer robot production, which comprises a guide part, clamping parts are symmetrically arranged on the left side and the right side of the guide part, each clamping part comprises a lifting base, and a clamping sleeve is fixedly connected to the top of each lifting base. According to the device, when the clamping sleeves on the two sides are used for clamping a welding workpiece, the effect that the clamping soft plates stably clamp the side edge of the workpiece can be achieved only by continuously pressurizing an inner cavity of the interlayer barrel shell through a pressurizing pump under the condition that it is guaranteed that the internal pressure intensity of the interlayer barrel shell is stable, and due to the fact that each clamping soft plate is divided into four areas, the clamping effect of the clamping soft plates is greatly improved; the block bodies in the areas where the clamping soft plates are located can be bent relatively, so that after uniform pressurization, the clamping soft plates can be uniformly attached to the outer surfaces of irregular workpieces under the pressing action of the sliding sleeves, tight clamping work is achieved, and the problem that the workpieces are not tightly clamped and slip is avoided.

The invention discloses a natural gas supply device for an industrial furnace, which relates to the technical field of gas supply systems for industrial furnaces, and comprises an annular guide rail which is arranged at the side end of a gas inlet flow regulation and control valve pipe in a sleeving manner and is used for driving an adjusting shaft and an ultrasonic generator to be positioned at the side end of a gas inlet pipeline to carry out ultrasonic frequency emission regulation and control, under the cooperation of the oxygen-containing regulation and control assembly, the oxygen content proportion in the natural gas in the oxygen-containing conveying pipe is rapidly corrected, the precise oxygen content needed by combustion of the industrial furnace is guaranteed, super-uniform mixing of natural gas and oxygen is integrally achieved, the incomplete combustion phenomenon caused by fluctuation of the oxygen content is reduced, and the heating effect and the product quality are improved; and under the cooperation of the ultrasonic adjusting assembly, more complex pipeline impurity conditions can be treated, so that emission parameters and reflection angles of self-adaptive automatic adjustment ultrasonic waves are formed, natural gas conveying is smoother, and therefore the combustion stability and heat efficiency of the industrial furnace are improved.

The invention provides an engineering operation vehicle load analysis method which comprises the following steps: predicting the change trend of the pressure of a hydraulic cylinder according to the descending speed and the load capacity of a fork, establishing a pressure prediction model through a support vector machine algorithm, and when the predicted pressure exceeds a safety threshold value, controlling the opening degree of a cushion valve in advance to realize predictive control of the pressure; a fuzzy rule base is established by combining the loading capacity of a forklift, the descending speed of a pallet fork and the pressure of a hydraulic cylinder, fuzzy self-adaptive control over the opening degree of a cushion valve is achieved, the opening degree of the cushion valve is automatically adjusted according to different working conditions, and it is ensured that the pressure of a hydraulic system is stabilized within a safety range. Establishing a nonlinear mapping relation among the loading capacity, the descending speed of the pallet fork and the opening degree of the buffer valve, training and optimizing a neural network model, achieving intelligent control over the opening degree of the buffer valve, and automatically adjusting the opening degree of the buffer valve according to the loading capacity and the descending speed of the pallet fork which are collected in real time.

The invention discloses an intelligent wood structure beam gluing and pressure maintaining method based on wood material characteristics. A plurality of continuous gluing and pressure maintaining mechanisms are used for providing gluing pressure for different parts of a wood plate composed of a plurality of glued and to-be-glued single plates and maintaining a long-time pressure maintaining state; the locking motor is provided with a locking force sensing system, a locking sleeve installed on a rotating shaft of the locking motor is matched with a bolt pull rod, and the wood structure is glued and locked, so that the locking force reaches the elastic yield stress interval capable of being borne by the wood structure material. The other end of the bolt pull rod is matched with the thrust ball bearing, the thrust ball bearing interacts with the high-toughness cushion block installed on the pressing base, the wood structure gluing process can be kept within the elastic yield stress range all the time, wood cannot be subjected to plastic deformation, and therefore the internal strength of the wood structure and the uniformity of the internal strength are guaranteed. Gluing pressure maintaining is carried out according to elastic yield stress of different woods based on different wood characteristics, manual intervention of a wood structure gluing process is avoided, and the quality stability of a glued wood structure can be greatly improved.

The invention relates to the technical field of heat exchangers, in particular to a plate heat exchanger cleaning system, a plate heat exchanger and a cleaning method. The fluid monitoring devices are installed at an inlet and an outlet of the plate heat exchanger respectively, connected with the control device and used for monitoring fluid data of the inlet and the outlet of the plate heat exchanger and transmitting the data to the control device. The high-pressure cleaning device is arranged between plate channels of the plate heat exchanger, is connected with the control device and is used for acquiring an instruction of the control device and cleaning the plate channels of the plate heat exchanger; the control device is used for receiving the fluid data of the fluid monitoring device and generating a cleaning instruction to the high-pressure cleaning device. Real-time monitoring and a response mechanism are combined, the fluid monitoring device, the high-pressure cleaning device and the control device are combined for control, the self-cleaning function of the plate heat exchanger is achieved, and the problems that an existing plate heat exchanger is difficult to clean and low in efficiency are solved.

The utility model belongs to the technical field of hybrid power assemblies, and particularly relates to a pressure-controllable hybrid power gearbox hydraulic control system which comprises a lubrication cooling subsystem and an oil supply subsystem, and further comprises a main oil pressure adjusting subsystem and a clutch control subsystem, and the oil supply subsystem comprises a first mechanical pump, a second mechanical pump, a suction filter and an oil tank. The first mechanical pump is connected with the suction filter which is connected with the oil tank; the lubrication cooling subsystem comprises an oil cooler and a filter, the first mechanical pump is connected with the oil cooler and the filter through oil ways, the filter is connected with an LUB oil way, and the oil cooler is connected with an EM1 oil way, an EM2 oil way and a C1 oil way; according to the clutch control sliding valve element, the feedback oil way is arranged at the spring end, so that spring force, feedback pressure and pilot hydraulic pressure form dynamic balance, smooth curve linear control over clutch pressure can be achieved, and control smoothness is improved.

The utility model discloses semiconductor cleaning equipment and a liquid supplementing device thereof, and belongs to the technical field of semiconductor cleaning. The liquid supplementing device comprises a liquid storage device, a liquid supplementing pipeline, a gas supply pipeline, a control device and a pressure detection element, the liquid storage device is provided with a liquid outlet and a gas inlet, the first end of the liquid supplementing pipeline is communicated with the liquid outlet, the second end of the liquid supplementing pipeline is used for being communicated with the process tank, the gas supply pipeline is communicated with the gas inlet, and the pressure detection element is arranged on the liquid storage device. The pressure detection element is electrically connected with the control device to detect the pressure in the liquid storage device, the control device is used for controlling the flow of the gas supply pipeline, the pressure detection element is electrically connected with the control device, and the control device controls the flow of the gas supply pipeline to be reduced under the condition that the pressure detection element detects that the pressure value in the liquid storage device is larger than a first pressure value; and under the condition that the pressure detection element detects that the pressure in the liquid storage device is smaller than a first pressure value, the control device controls the flow of the gas supply pipeline to be increased. The semiconductor cleaning equipment comprises the liquid supplementing device.

The invention discloses an automotive liquid ammonia supply system which comprises a liquid ammonia storage tank, a liquid outlet and a gas outlet are formed in the liquid ammonia storage tank, the liquid outlet is connected with one end of a filling pipeline and one end of a liquid outlet pipeline, a stop valve and an electromagnetic valve are connected to the liquid outlet pipeline in series, the other end of the liquid outlet pipeline is connected with a first medium inlet of a water bath type vaporizer, and a second medium inlet of the water bath type vaporizer is connected with a second medium inlet of the water bath type vaporizer. A first medium outlet of the water bath type vaporizer is connected with an inlet of the buffer tank, an outlet of the buffer tank is used for providing ammonia gas, one end of the gas return pipeline is connected with the gas outlet, a pressure gauge, a stop valve and a safety valve are connected to the gas return pipeline in series, and a second medium inlet and a second medium outlet of the water bath type vaporizer are used for being connected with an engine cooling liquid outlet and an engine cooling liquid inlet respectively. And a saturation pressurization pipeline is further arranged, an electromagnetic valve and a heat exchange pipe located in the liquid ammonia storage tank are connected to the saturation pressurization pipeline in series, and two ports of the saturation pressurization pipeline are used for being connected with an engine cooling liquid inlet and an engine cooling liquid outlet respectively. The liquid ammonia gas supply system for the vehicle can stably supply gas to the vehicle.

The invention provides an electronic circuit copper foil producing machine with large-diameter winding equipment isolated from a main machine, and relates to the technical field of copper foil producing machines. The electronic circuit copper foil production machine comprises a winding chamber, a guide roller, a pressing roller, an adjusting roller, a winding roller, a first rotating frame, a second rotating frame and an adjusting device, the adjusting device, the first rotating frame and the second rotating frame are all arranged in the winding chamber, the adjusting roller is connected with the first rotating frame, and the pressing roller is connected with the second rotating frame. The pressing roller is connected with the second rotating frame and abuts against the winding roller, and the copper foil sequentially passes through the guide roller and the adjusting roller and is wound on the winding roller. The copper foil winding device has the beneficial effects that it is ensured that the copper foil is always kept stable in tension degree in the winding process, and the flatness and winding quality of the copper foil are improved.

The utility model relates to the technical field of liquid treatment devices, in particular to a flow stability control device. A flow stable control device comprises a metering pump, a damper, a back pressure valve and a pipeline, the metering pump, the damper and the back pressure valve are all installed on the pipeline in series, the metering pump is placed in the fluid direction, the damper is located at the front end of the metering pump, the back pressure valve is located at the front end of the damper, and the metering pump, the damper and the back pressure valve are sequentially connected in series to form a continuous channel. The metering pump controls the medicament flow, the damper stabilizes the flow, reduces the influence of pressure change and pump wear, and the back pressure valve adjusts the pressure, so that stable flowing of the medicament is guaranteed, the purposes of flow control and pressure adjustment are achieved, the series design improves the dosing accuracy and stability, and efficient operation of the treatment process is guaranteed.

The invention relates to the field of pressure difference control, in particular to a clean room pressure difference self-adaptive control method, device and equipment and a medium. The method comprises the steps that the current air flowing state of the clean room can be accurately reflected by obtaining the air supply amount data and the air return amount data in real time, and the requirement for pressure change in the clean room can be more accurately reflected according to the maximum pressure difference air amount determined on the basis of the data. By establishing the first air leakage quantity fluctuation function corresponding to the basic pressure difference air quantity fluctuation value, namely by considering the air leakage quantity caused by the sealing condition of the clean room, tiny pressure fluctuation possibly existing in the clean room can be considered and adapted, and therefore the precision of pressure difference control of the clean room is improved.

The invention relates to the technical field of mechanical engineering sealing, in particular to a large-shaft-diameter magnetic fluid sealing device for sealing fog-state or gas-state media, and the large-shaft-diameter magnetic fluid sealing device comprises a movable pole shoe, a static pole shoe, a permanent magnet and a heat dissipation channel; the movable pole shoe is composed of a vertical part and a horizontal part which are integrally formed, annular labyrinth sealing convex teeth are arranged at the bottom end of the vertical part, and a plurality of sealing teeth are arranged on the lower surface of the horizontal part; the static pole shoe is located below the movable pole shoe, a labyrinth sealing groove is formed in the top of the static pole shoe, a buffer groove is formed in the outer side of the labyrinth sealing groove, a magnetofluid groove is formed in the outer side of the buffer groove, magnetofluid is arranged in the magnetofluid groove, the multiple sealing teeth are all inserted into the magnetofluid, a containing groove is formed in the bottom of the static pole shoe, and a permanent magnet is arranged in the containing groove; the heat dissipation channel is formed in the static pole shoe, and cooling liquid is arranged in the heat dissipation channel; the bearing capacity of the large-shaft-diameter magnetofluid seal can be enhanced, and meanwhile the stability and reliability of the magnetofluid seal are ensured.

The utility model discloses a feed pump core cladding protection system which comprises a circulating fluidized bed boiler, an outlet of the circulating fluidized bed boiler is communicated with an inlet of a steam turbine, an outlet of the steam turbine is communicated with an inlet of a condensate pump, and an outlet of the condensate pump is respectively communicated with an inlet of a slag cooler and an inlet of a booster pump. An outlet of the slag cooler is communicated with an inlet of the water feeding pump through a low-pressure heater and a deaerator in sequence; the booster pump outlet is communicated with the feed pump inlet; the outlet of the high-pressure heater is communicated with the inlet of the circulating fluidized bed boiler. According to the system, a bypass is additionally arranged beside a pipeline, leading to sealing water of a feed pump, of a condensate pump, a booster pump is additionally arranged on the bypass, and the pressure of condensate entering the feed pump seal is adjusted. The lowest pressure of the outlet of the condensate pump is set, once the pressure is smaller than the minimum pressure required by a sealing system, the booster pump is started immediately, stable condensate pressure is guaranteed, a water pump core bag is prevented from being damaged, and safe operation of a unit is guaranteed.

The utility model provides a cutter grinding device of a cutting bed. The cutter grinding device comprises a cutter grinding sand column, a rotation driving member; a sliding part is connected to the sliding rail in a sliding mode, and the sliding part is connected with the rotary driving piece and the sharpening sand column; the buffering mechanism comprises a buffering shifting rod and a buffering seat plate connected with the sliding part, a guiding shaft and a buffering shaft which are parallel to each other are arranged in the buffering seat plate, and the buffering shaft is sleeved with a spring; a first open hole and a second open hole are formed in the buffer driving lever, and the first open hole is arranged on the guide shaft in a sleeving manner; the buffer shaft is sleeved with the second open hole. The buffer seat plate is further in threaded connection with an adjusting knob, one end of the spring abuts against the adjusting knob, and the other end of the spring abuts against the buffer deflector rod; and the output end of the linear displacement driving part is connected with the buffer shifting rod. The utility model further provides a cutting bed which comprises the cutter grinding device. The knife sharpener has the advantages that stable knife sharpening pressure is provided, and knife sharpening work data are more accurate.

The invention relates to the technical field of fuel cells, and discloses a fuel cell hydrogen supply system, a hydrogen supply control method and device and electronic equipment. The hydrogen supply system comprises a plurality of flow control units; and the apertures of the air outlets of the plurality of flow control units are different. A plurality of nozzles are arranged at the air inlet end of the ejector; the nozzles are communicated with the air outlets of the flow control units, the apertures of the multiple nozzles are different, and the multiple nozzles are in one-to-one correspondence with the air outlets of the multiple flow control units. And the air inlet end of the electric pile is communicated with the air outlet end of the ejector. The control method comprises the following steps: acquiring the current pile current and the actual pressure value of hydrogen entering the pile; based on the current pile current, determining a corresponding hydrogen inlet pile set pressure value; and under the condition that the deviation value of the actual pressure value of the hydrogen entering the pile and the set pressure value of the hydrogen entering the pile is not within the range of the deviation threshold value, determining the adjusting quantity of the opening degree of the flow control unit according to the deviation value and the current electric pile current. The problem that the hydrogen reactor inlet flow fluctuation is large is solved.

The invention relates to the technical field of integrated hydraulic station systems, and discloses an integrated hydraulic station system based on intelligent control. The integrated hydraulic station system comprises an intelligent control core module, a power and transmission control module, a monitoring and feedback adjusting module, a safety and protection module, a fault diagnosis and early warning module, a network communication and remote monitoring module and a system integration and cooperation module. The intelligent control core module comprises a central controller and a data acquisition and processing unit; the power and transmission control module comprises a hydraulic pump set and a hydraulic motor; the monitoring and feedback adjusting module comprises a sensor network and a human-computer interaction interface; the safety and protection module comprises an energy accumulator, a safety valve, an overflow valve, a filter and a cooler; the network communication and remote monitoring module comprises a network communication unit and a remote monitoring platform; through the system, the working stability and reliability of the hydraulic system can be improved.

According to the fretting wear test device in the high-temperature gas environment, the double-layer test cavity capable of simulating the high-temperature gas environment is designed, high temperature, gas components and pressure conditions are adjusted through the heating unit and the gas control module, and it is ensured that the test is conducted under the condition close to the actual service condition; by loading different normal forces, high frequency and variable displacement amplitude, fretting wear behaviors in a high-temperature gas environment are simulated so as to research the wear characteristics between the sample and a wear pair, and meanwhile, high-temperature-resistant materials such as a double-layer shell structure and a high-purity alumina fiber material are adopted, so that the double-layer test cavity can bear the high-temperature environment, and the wear resistance of the sample is improved. And heat is effectively isolated to ensure operation safety. And finally, the temperature and the air pressure in the test cavity are monitored in real time through a heating piece and an external driving system, so that the temperature and the pressure in the test process are stabilized in a set range, and damage to equipment caused by overheating or overpressure is avoided.

The invention discloses a hydraulic oil cylinder high-speed oil supplementing system and an injection molding machine, and belongs to the technical field of injection molding machine hydraulic systems, the hydraulic oil cylinder high-speed oil supplementing system comprises an oil cylinder, a control oil way, an oil supply loop and an oil tank, the control oil way is communicated with the oil cylinder, one end of the oil supply loop is communicated with the control oil way, and the other end of the oil supply loop is communicated with the oil tank; the control oil way comprises a first cartridge valve, a second cartridge valve, a third cartridge valve, a fourth cartridge valve, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, one end of the first cartridge valve is communicated with a rodless cavity of the oil cylinder, the other end of the first cartridge valve is communicated with the oil tank, one end of the second cartridge valve is communicated with the rodless cavity of the oil cylinder, and the other end of the second cartridge valve is connected with the oil supply loop. The first electromagnetic valve controls opening and closing of the first cartridge valve and the second cartridge valve, the first cartridge valve and the second cartridge valve act asynchronously, one end of the third cartridge valve is communicated with a rod cavity of the oil cylinder, the other end of the third cartridge valve is connected with an oil supply loop, one end of the fourth cartridge valve is communicated with a rod cavity of the oil cylinder, and the other end of the fourth cartridge valve is connected with an oil tank. The second solenoid valve controls opening and closing of the third cartridge valve, the third solenoid valve controls opening and closing of the fourth cartridge valve, the third cartridge valve and the fourth cartridge valve act asynchronously, and the four cartridge valves are combined directly to control oil inlet and oil return of the oil cylinder, so that the length of the moving distance of hydraulic oil is shortened, and the flowing resistance of the hydraulic oil is reduced; and the action sensitivity of the oil cylinder is improved, so that the production efficiency is improved.

The invention discloses a high-temperature solid hydrogen storage and SOEC coupling hydrogen production and storage integrated system and method. The system comprises a water supply device, and the end of the water supply device is connected with a suction device; one end of the recovery device is connected with the suction device, and the other end is connected with a reaction device; the SOEC electrolytic reactor is connected with the reaction device, the SOEC electrolytic reactor comprises an anode end and a cathode end, and the anode end is connected with the recovery device; one end of the air delivery device is mounted between the reaction device and the SOEC electrolytic reactor, and the other end of the air delivery device is connected with a hydrogen high-temperature heat recovery device; the first end of the hydrogen medium-temperature heat recoverer is connected with the hydrogen high-temperature heat recovery device, the second end of the hydrogen medium-temperature heat recoverer is connected with the reaction device, the third end of the hydrogen medium-temperature heat recoverer is connected with a condenser, the fourth end of the hydrogen medium-temperature heat recoverer is connected with a dryer, and the condenser is connected with the dryer. Medium-temperature and high-temperature heat energy released in the hydrogen storage process of the high-temperature metal hydride is recycled through the heat recycling device and used for producing high-temperature superheated steam needed by SOEC electrolysis, and the good heat and mass synergistic effect is achieved on the whole.

The utility model discloses a hot air circulating device of a smelting furnace, which relates to the technical field of hot air circulating devices of smelting furnaces and comprises a furnace body, an emission reduction unit for filtering nitrogen oxides, an air blowing unit for improving the filtering effect and a circulating unit, a reaction box is installed on one side of the furnace body, a temperature control assembly is arranged at the lower end of the reaction box, a stirring unit used for evenly mixing hot air is arranged at the upper end in the furnace body, and a circulation unit is installed on the furnace body. The emission reduction unit comprises a box inlet air pipe mounted at the upper end in the reaction box, the air outlet end of the box inlet air pipe is connected with a transverse pipe, and air outlet holes are formed in the upper end of the transverse pipe at equal intervals; according to the utility model, by utilizing the Karman vortex street effect, flue gas is ejected upwards in a swinging manner, so that the contact area with ammonia, a catalyst and the like can be increased, and the comprehensiveness of catalytic reduction of nitrogen oxides is improved; ammonia is discharged from the ammonia outlet hole, and can enter the elliptic cylinder again from the ammonia collecting hole to circulate by utilizing the Bernoulli principle, so that the utilization rate of the ammonia is improved, and more cost is saved.

The invention discloses a compressed air energy storage underground cavern flexible sealing material permeability coefficient testing device which comprises an air compressor, a booster pump, an air storage tank, a high-pressure sealing box and a micro-gas measuring device, the high-pressure sealing box comprises an upper pressing plate and a lower pressing plate, and a permeable stone plate is horizontally placed in a first groove in the top of the lower pressing plate; a second groove in the bottom of the upper pressing plate serves as an air pressure chamber on the high-pressure side, an air inlet hole and an air outlet hole are formed in the upper pressing plate and the lower pressing plate respectively, an air inlet valve is installed on a first pipeline between the air inlet hole and the air storage tank, and the first pipeline is connected with an air outlet valve; the air outlet hole is connected with a first beaker, the first beaker is connected with a second beaker, and the second beaker is placed on a high-precision electronic balance. The testing device and method are safe, reliable and convenient to operate, high-precision testing of the permeability coefficient of the flexible sealing material can be achieved, and the blank of an existing permeability coefficient testing device and method under the high-internal-pressure working condition is filled up.