34results about How to "Accurate supply" patented technology

The invention provides a safety check and real-time prediction linkage system and method for a hydrogen-doped natural gas pipeline network. The system comprises a digital twin module, a detection module, a hydrogen-doped pry module and a consumption prediction module, the detection module comprises a terminal user, a thermometer and a flow meter, the thermometer is used for collecting temperature data of the terminal user, the temperature data is transmitted to the digital twin module, the flow meter is used for collecting load data of the terminal user, and the load data is transmitted to the consumption prediction module; the use amount prediction module predicts the hydrogen-doped natural gas use amount of the user per hour in real time according to the data collected by the detection module; the hydrogen doping pry module controls the mixing ratio of hydrogen to natural gas according to the output result of the dosage prediction module; and the digital twin module checks the safety operation feasibility and the hydrogen doping ratio by calculating the physical property parameters of the hydrogen-doped natural gas. Accurate prediction, dynamic scheduling and safety checking of the natural gas and hydrogen consumption are achieved, and it is ensured that the energy use efficiency is improved.

The invention discloses a full-automatic pelletization coating system and method for small forage grass seeds, and particularly relates to the technical field of agricultural equipment.The full-automatic pelletization coating system comprises a rack, a controller, a pelletization coating device, a seed supply device, a powder supply device and a liquid supply device, and the pelletization coating device, the seed supply device, the powder supply device and the liquid supply device are in signal connection with the controller; both the seed supply device and the powder supply device are provided with vibration exciters capable of providing two vibration amplitudes, so that two blanking speeds, namely a fast blanking speed and a slow blanking speed, are realized, errors caused by materials in the air when a weighing hopper detects preset supply mass are reduced, and accurate supply of seeds and powder is achieved; the liquid supply device comprises a liquid medicine box, a clear water box, a proportional control three-way valve and a peristaltic pump, the liquid medicine box and the clear water box are connected with the peristaltic pump through the proportional control three-way valve, and the liquid medicine proportion can be accurately controlled by adjusting the opening degree of the proportional control three-way valve. According to the invention, the coating uniformity of small pasture seeds can be improved, the pelleting quality is enhanced, and the production efficiency is improved.

The invention discloses a planting method for promoting growth of eucalyptus root systems and effectively improving typhoon resistance. The planting method comprises the following steps: (1) selecting a forest land; (2) forest land cleaning; (3) planting density; (4) digging planting pits; (5) applying a bottom-layer bag-controlled slow-release fertilizer; (6) applying a base fertilizer; (7) field planting; (8) applying a shallow-layer bag-controlled slow-release fertilizer; (9) complementary planting; and (10) topdressing. According to the technology, bag-controlled slow-release fertilizers with different slow-release time are applied in different places, nutrients are continuously supplied to plants under deep root systems and around shallow root systems within a certain time range, volatilization, leaching loss and permeation of nitrogen fertilizers, fixation of phosphate fertilizers and migration loss of potash fertilizers can be reduced to the maximum extent, and the utilization rate of the fertilizers is increased. Meanwhile, through the fertilizer taxis of the eucalyptus root systems, extending growth of deep root systems and shallow root systems is guided, the grabbing and attaching force of the eucalyptus is improved, and therefore the typhoon resistance of the eucalyptus is effectively improved.

The invention discloses a cooling capacity allocation method and device of an intelligent building and a storage medium, and relates to the technical field of air conditioner control, the cooling capacity allocation method of the intelligent building comprises the steps that if a temperature setting instruction triggered by an air conditioner is detected, the set temperature corresponding to the temperature setting instruction is determined; the expected cooling capacity of the air conditioner is determined according to the set temperature; the current cold storage capacity of the cold storage module is obtained; and according to the node grade of the cooling capacity pipeline associated with the air conditioner, the expected cooling capacity and the current cold storage capacity, the allocated cooling capacity of the air conditioner is determined. Therefore, the technical problem that a building air conditioner management scheme in the related technology causes invalid consumption of a large amount of electric energy and causes waste of electric quantity is solved, and the technical effects of accurate cold supply and electric energy saving are achieved.

The invention discloses a spice processing and dissolving tank with a directional continuous feeding mechanism. The spice processing and dissolving tank comprises a dissolving barrel, a continuous feeding barrel is arranged at the top of the dissolving barrel, a top sealing cover is arranged at the top of the continuous feeding barrel, a buffer discharging barrel is arranged at the bottom of the dissolving barrel, and a servo motor is arranged in the center of the top of the top sealing cover; through precise feeding, precise connection of a raw material container and a feeding branch pipe according to processing requirements, flexible connection of gas supply equipment, adaptation of various media, guarantee of precise and stable supply of raw materials and the media, regulation and control of a rotary sealing frame through cooperation of a magnetic coupling, precise feeding according to requirements and stirring of a spiral cone, continuous and stable feeding and dissolution are achieved, and the efficiency is improved; the spiral cone is matched with the heater to create a dissolving environment, the turbulent flow pipe enhances stirring, the discharging pipe set flexibly pumps materials according to the rhythm, the buffering discharging barrel and the discharging pipe set guarantee safe and stable discharging, the servo motor is used for driving, and all the components are tightly and stably linked.

The invention belongs to the technical field of toilet paper production, and particularly relates to environment-friendly fiber toilet paper production equipment and a method thereof.The environment-friendly fiber toilet paper production equipment comprises a rack, a raw material frame installed on the surface of one end of the rack and a tensioning guide frame installed on the surface of the rack; the compacting and rolling assembly comprises an outer cover fixedly installed on the surface of the rack. By means of the automatic feeding device, toilet paper rolls can be automatically wound and formed, the workload of manual arrangement and toilet paper winding is reduced, the automation degree of production is improved, roll cores can be rapidly and accurately supplied to the machining position, the time and steps needed by manual feeding are reduced, and therefore the overall production efficiency is remarkably improved, automatic feeding of the roll cores is achieved, and the production efficiency is improved. The adhesive in the adhesive storage box can be conveniently smeared on the surface of toilet paper through the tail end of the adhesive smearing pipe, follow-up rolling forming is facilitated, continuous production can be easily achieved, and therefore the overall production efficiency is greatly improved.

The invention relates to an anaesthesia machine control system. The system specifically comprises an acquisition module, an information interaction module, an information processing module, a gas monitoring control module, a standby power supply, a power monitoring module and a display screen, the power monitoring module is used for monitoring an external power supply state in real time, when external power supply is abnormal, the standby power supply is immediately switched, and meanwhile, the power monitoring module also monitors the state of the standby power supply in real time and controls the standby power supply to charge according to needs; and the information processing module performs numerical information fusion by using a double-model structure to obtain anesthetic gas control information. The invention further relates to an anaesthesia machine control method and an anaesthesia machine. According to the anesthesia machine using the system and the method, accurate anesthetic gas supply can be controlled for the individual user, meanwhile, uninterrupted power supply can be guaranteed, and smooth anesthesia treatment and safety of the user are guaranteed.

The utility model provides a kind of high air permeability tomato is planted with seedling box, it is related to tomato planting technical field, including ventilation groove, water guide plate, seedling hole tray and top cover, ventilation groove side wall is equipped with the ventilation opening corresponding with seedling cup, seedling cup side wall is equipped with air-permeable groove hole, both cooperation realizes the lateral three-dimensional ventilation of root zone;Meanwhile, the water storage tray in the bottom of ventilation groove is built-in water guide plate of water-absorbing material, by water guide strip and seedling cup bottom butt joint, provide stable and continuous bottom water supply for substrate;The utility model skillfully combines high air permeability structure and automatic water replenishing system, effectively promotes root system healthy development, prevents rotten root and root system tangle, improves seedling efficiency and success rate.

The utility model relates to the technical field of paper box assembly, and particularly discloses automatic magnet pasting equipment for a paper box, which comprises a rack, and a first feeding device, a second feeding device, a glue supply device, a pasting manipulator and a pasting workbench which are arranged on the rack, the first feeding device is used for supplying an external paper box to the material pasting workbench, the second feeding device is used for supplying a magnet to the material pasting manipulator, the glue supply device and the material pasting manipulator are arranged in a matched mode and used for providing an adhesive enabling the magnet and the paper box to be pasted in a matched mode, and the material pasting manipulator is arranged on the rack in a reciprocating motion mode; the material pasting mechanical arm is used for picking up the magnet supplied by the second feeding device, driving the magnet to adhere the adhesive and pasting the magnet on the paper box borne by the material pasting workbench. According to the technical scheme, efficient and automatic mounting of paper boxes and magnets is achieved, the production efficiency is improved, the labor cost is reduced, the paper box mounting device adapts to different paper box specifications, the mounting quality is guaranteed, and the finished product yield and the equipment operation stability are improved.

The invention provides a heat supply pipe network loss operation control system comprising a data acquisition module used for monitoring key operation parameters of a heat supply pipe network; the central analysis module is used for generating a switching decision based on the key operation parameters and preset switching logic; the dynamic control module is used for controlling the action of the valve component based on the switching decision; the feedback control module is used for monitoring the operation state of the auxiliary pipeline after the switching decision is operated and comparing the operation state with the switching decision; the action of the valve component is adjusted according to the comparison result, so that the operation state of the auxiliary pipeline meets the switching decision; through intelligent management and control, the problem of pipe damage existing in a traditional heat supply pipe network is effectively solved, and the overall efficiency, economical efficiency and user experience of the system are improved.

The invention relates to the technical field of pneumatic machining, in particular to a pneumatic stamping device and method for LED street lamp frame machining, the pneumatic stamping device comprises a base and a top frame, a female die matched with an LED street lamp frame workpiece is arranged in the base, and a male die matched with an LED street lamp frame is arranged below the top frame. A plurality of supporting rods are jointly connected between the base and the top frame, a liquid storage shell used for storing a lubricating agent is arranged at the top of the male die, liquid pipes capable of spraying the lubricating agent are arranged on the two sides of the male die, a liquid conveying assembly for driving the lubricating agent in the liquid storage shell to be conveyed is arranged in the top frame, and a top strip is arranged in the female die; the inner wall of the female die is provided with a plurality of liquid drainage holes for lubricating agents to pass through, and a liquid drainage assembly for pushing the lubricating agents to be sprayed out through the liquid drainage holes is arranged in the base. The lubricant is introduced in the stamping process, so that the friction force between the LED street lamp frame workpiece and the die can be obviously reduced.

The utility model discloses deep groove ball bearing producing and machining equipment which comprises a cleaning mechanism, a detecting mechanism and an assembling mechanism. The cleaning mechanism is matched with a spraying device through the cavitation effect of an ultrasonic generator, deep cleaning can be conducted on the inner ring, the outer ring and ball gaps of the deep groove ball bearing, oil stains and chippings are effectively removed, and sewage is discharged through a liquid outlet after cleaning. The detection mechanism synchronously detects multiple parameters such as the size precision, the surface roughness and the roundness of the bearing by means of a multi-parameter detection probe, detection data are transmitted to the data processing system to be analyzed, and whether the bearing is qualified or not is rapidly judged. An automatic feeding device of the assembling mechanism conveys parts, and an assembling mechanical arm is matched with a positioning clamp to accurately complete assembling of all parts of the bearing. All the mechanisms of the equipment work cooperatively, and the production and machining efficiency, quality and assembly stability of the deep groove ball bearing are improved.

The invention relates to the technical field of medicine consumable data processing, in particular to a cloud-based medicine consumable SPD management system, which comprises a cloud demand prediction module, a data processing module and a data processing module, and is characterized in that based on time period demand data and geographic area demand data of medicine consumables, the cloud demand prediction module aggregates similar demand modes in the time period demand data according to a time level, and sends the aggregated demand modes to a database; the method comprises the steps of obtaining demand aggregation data of a time period, aggregating areas in geographic area demand data into similar demand categories according to geographic position distances to obtain demand aggregation data of multiple areas, and extracting the demand aggregation data of the time period and key features of the demand aggregation data of the multiple areas. Comprising time period change features and inter-region demand similarity features, and generating a key demand feature set. According to the method, the key demand characteristics are extracted by layering and aggregating the time periods of the drug consumables and the geographic area demand data, so that the demand trends in different time periods and areas can be accurately predicted.

The utility model discloses a material conveying device for building decoration, which comprises a material conveying mechanism and a limiting mechanism, the limiting mechanism is fixedly connected to the front side of the top of the material conveying mechanism, the limiting mechanism comprises a limiting box, and the bottom of the inner cavity of the limiting box is fixedly connected with a motor assembly. The output end of the motor assembly is fixedly connected with a gear, toothed plates are arranged on the front face and the back face of the gear, the inner sides of the toothed plates are meshed with the gear, the outer sides of the toothed plates are slidably connected with the inner wall of the limiting box, and the outer sides of the toothed plates are fixedly connected with connecting plates. According to the material conveying device, the phenomenon that materials cannot be limited in the prior art is changed, the special-shaped limiting rods are adopted to drive the limiting vertical plates to move towards the inner side, the limiting vertical plates conduct limiting treatment on the conveying box, the inclination phenomenon cannot occur when the conveying box runs to a bumpy road section, and the phenomenon that the conveyed materials fall off cannot occur.

A powder feeding amount controller comprises a belt, a discharging pipe and a movable scraper, the top of the discharging pipe is a feeding end, the bottom of the discharging pipe is arranged on the belt, an opening in the bottom of the discharging pipe is sealed through the belt, and a discharging opening communicated with the opening in the bottom of the discharging pipe is formed in the side, facing the discharging end of the belt, of the discharging pipe. A movable scraping plate is arranged at the position of the discharging port, a guide mechanism is installed at the position of the discharging port of the discharging pipe, the movable scraping plate is installed on the guide mechanism in a sliding mode, and the movable scraping plate moves up and down under the action of the guide mechanism to achieve opening and closing of the discharging port. And a driving device for driving the movable scraping plate to move along the guide mechanism and a pointer mechanism for displaying the opening height of the discharge port are further mounted on the outer side of the discharge pipe. According to the utility model, more accurate supply of powder raw materials can be realized, the precision of the proportion of firecracker production medicines is improved, and the finished product quality of firework and firecracker products is improved.

The present application relates to the technical field of data center energy management and waste heat recovery, and particularly relates to a seasonal thermal management device suitable for a data center, comprising: data acquisition through a heat production information acquisition module and an environment information acquisition module; an analysis module determines a seasonal working condition thermal data adjustment range based on the environment data, and determines a plurality of comprehensive thermal indexes of the data center based on the seasonal working condition thermal data adjustment range, and divides thermal management areas; a control module determines each thermal management area based on the threshold of each thermal management area, and adjusts the load distribution of each cabinet based on the distribution state of each thermal management area; the analysis module further judges whether a corresponding chip protection strategy needs to be executed according to a hardware health degree model to optimize the equipment life. The present application realizes the collaborative and accurate control of the data center load and the liquid cooling system by dynamically identifying the thermal distribution and combining the seasonal working condition, and significantly improves the thermal management efficiency and the system energy efficiency.

The application relates to a stepped environment-regulating seedling raising device, and relates to the technical field of seedling raising devices. The device comprises a stepped support, a plurality of planting boxes are arranged at the upper end of the stepped support, a plurality of atomizing nozzles arranged in a linear array are fixedly connected to the bottom end of the outer wall of a water pipe, a plant growth lamp is rotationally connected in the rotating seat, two axial flow fans arranged in a mirror image are fixedly connected to the inside of one side of the shell, and an exhaust pipe is fixedly connected to the upper end of the shell. The application has the effects that the plant growth lamp, the atomizing spraying device and the axial flow fan are arranged, the spraying device sprays water mist into the shell through the atomizing nozzles to ensure the stability of humidity by the control device, and the illumination of the plant growth lamp provides sufficient light for seedlings, so that the seedlings can perform sufficient photosynthesis, the environment in the shell can be kept in the conditions suitable for the growth of the seedlings, and the seedling raising efficiency and quality are improved.

This invention discloses a nutrient-degrading enzyme, engineered microbial agents, and their application in the nutrient regulation of polymeric slow-release fertilizers, belonging to the field of enzyme engineering technology. This invention utilizes a specific polymeric slow-release fertilizer-degrading enzyme modified by artificial intelligence, which not only retains the degradation activity of the source strain enzyme but also achieves efficient heterologous expression while promoting a dual improvement in stability and catalytic efficiency. The constructed composite engineered strain exhibits no antagonistic effect, enabling low-cost, large-scale production of the degrading enzyme. The composite engineered strain can achieve precise regulation of nutrient release from polymeric slow-release fertilizers. By adjusting the ratio of engineered strains producing peptidases and amidases, precise supply of nutrients to different stages throughout the growth cycle of different crops can be achieved, resulting in complete degradation of polymeric slow-release fertilizers, significantly improving crop yield and nutrient utilization, and showing significant application prospects in the development of precision agriculture.

The present invention relates to the technical field of hydrogen fuel cell production, and specifically to a production device for a hydrogen fuel cell stack, including a synchronous stacking and handling device installed on the battery stack production device, the synchronous stacking and handling device including a bearing seat, a bipolar plate stacking device, a membrane electrode stacking device, a stable detaching device and a parallel feeding device, the bearing seat is used to limit the placement of the lower end plate, the bipolar plate stacking device and the membrane electrode stacking device are symmetrically installed on both sides of the bearing seat, the working end of the bipolar plate stacking device and the working end of the membrane electrode stacking device can be interlaced and assembled with each other, the stable detaching device is installed above the bearing seat, the stable detaching device is used to stabilize the stacked bipolar plates and membrane electrodes, and a plurality of parallel feeding devices are provided, and are all distributed on the sides of the bipolar plate stacking device and the membrane electrode stacking device. The present invention can effectively improve production efficiency and ensure production quality at the same time.

The application discloses an irrigation water and fertilizer fine adjustment system and method, and relates to the technical field of agricultural irrigation adjustment.The application comprises information collection and storage, visual feature recognition and growth stage matching, irrigation area division and calculation of water application amount and fertilizer application amount, and generation of irrigation instructions and execution of irrigation operation.The application determines the growth stage by collecting crop information and performing visual feature recognition, and generates a crop growth stage spatial distribution map according to the growth stage, and divides the irrigation area according to the map;the water application amount and the fertilizer application amount are obtained by calculating the water and fertilizer according to the soil water content and the soil conductivity of the soil in the irrigation area;finally, the irrigation instructions are generated and the irrigation operation is executed according to the water application amount and the fertilizer application amount, so that the accurate water and fertilizer supply for crops in different growth stages is realized, and the fine degree of irrigation water and fertilizer adjustment is improved.

The utility model relates to the technical field of corrugated pipe processing, and discloses a corrugated pipe bulging machine which comprises a bulging machine body, an oil storage tank is fixedly connected to the left side of the middle of the bulging machine body, a conveying pump is fixedly connected to the top of the oil storage tank, a conveying hose is fixedly connected to the output end of the conveying pump, and a dripping pipe is fixedly connected to one end of the conveying hose. A support is fixedly connected to the exterior of the dropwise adding pipe, a first material passing pipe is slidably connected to one side of the interior of the dropwise adding pipe, a second material passing pipe is slidably connected to the other side of the interior of the dropwise adding pipe, a fixing pipe is fixedly connected to the outer side of the dropwise adding pipe, a pull rod is slidably connected to the interior of the fixing pipe, and an electric push rod is fixedly connected to the outer side of the pull rod. According to the quantitative lubrication device, quantitative lubrication is achieved when the corrugated pipe bulging machine is used for machining, accurate supply of lubricating oil is guaranteed, then friction and abrasion are reduced, stability and precision in the machining process are improved, maintenance cost is reduced, and the service life of the machine is prolonged.

The invention discloses a strawberry seedling raising system, and aims to solve many problems existing in a traditional strawberry seedling raising mode and improve seedling raising quality and efficiency. A plurality of groups of seedling raising pipe mechanisms are arranged at the front part of the seedling raising frame, seedling raising pipes are inclined and are internally provided with wave lines and pits, the lower ends of the seedling raising pipes are provided with ultrasonic transducers, an ultrasonic aerator is arranged below a liquid inlet in the left side, and a liquid outlet is formed in the lower end of the right side; a porous ceramic cup base at the bottom of the seedling culture cup comprises a capillary structure and a liquid storage cavity; the circulating mechanism is composed of a nutrient solution mixing box, a circulating pump, a main pipeline, a flow dividing pipeline and a pressure regulating valve, and nutrient solutions can be blended and accurately supplied. Through the design, efficient oxygenation, uniform mixing and accurate supply of a nutrient solution are achieved, a stable and excellent environment is created for strawberry seedling root systems, healthy growth of the root systems is promoted, the survival rate and quality of strawberry seedlings are improved, meanwhile, a good nutrient solution recycling function is achieved, the cost is reduced, and wide market application prospects are achieved.

The utility model discloses electrode cap replacing equipment, and relates to the technical field of automobile welding equipment, the electrode cap replacing equipment comprises a bottom plate, the left side of the upper surface group of the bottom plate is fixedly connected with a first supporting rod, the top of the first supporting rod is fixedly connected with an electrode cap storage module, and the electrode cap storage module comprises a connecting plate; the upper end of the interior of the connecting plate is provided with a feeding bin, the lower end of the interior of the connecting plate is provided with a discharging bin, the left side of the connecting plate is fixedly connected with a cover plate through bolts, the left side of the upper end of the connecting plate is fixedly connected with an air inlet nozzle, the middle of the right side of the connecting plate is fixedly connected with an extension spring, and the tail end of the extension spring is fixedly connected with a pressing plate. A plurality of communicating holes are formed in the positions, connected with the feeding bin and the discharging bin, of the interior of the connecting plate in a penetrating mode, rapid and accurate material supply is achieved, and compared with manual feeding, the waiting and adjusting time is saved, the production efficiency is greatly improved, and the welding precision and consistency are improved.

The present application relates to a metal powder preparation system and method in the technical field of metal powder preparation for additive manufacturing. The metal powder preparation system includes a medium frequency smelting furnace, a homogeneous insulated quantitative pouring furnace, a precision-controlled liquid level temperature pouring ladle, and a plurality of groups of atomization mechanisms connected in sequence. The present application improves the preparation quality of the metal powder, so that the parameters such as the powder particle size, sphericity, fluidity, oxygen content, component distribution, and particle size distribution of the metal powder can all meet the requirements of high-quality metal additive manufacturing, achieving efficient and continuous preparation of the metal powder at the same time.

This invention relates to a dry powder inhaler, comprising: an indexing mechanism including a driving indexing gear and a driven indexing gear, the driving indexing gear including a pawl, and the driven indexing gear including an indexing groove and a guide structure; a peeling mechanism; a counting driving tooth that rotates in response to the rotation of the driven indexing gear; and a counting mechanism having a counting driven tooth and a stop. When the number of uses has not reached a preset threshold, the pawl remains engaged with the indexing groove, and the counting driving tooth remains engaged with the counting driven tooth. When the number of uses reaches the preset threshold, the stop prevents the counting driving tooth from continuing to rotate. When the external force driving the indexing mechanism to rotate exceeds a preset force value, the pawl deforms along the groove opening towards the indexing groove under the guidance of the guide structure, thereby disengaging from the indexing groove. The dry powder inhaler of this invention, when the number of uses reaches the preset threshold, can limit further use of the dry powder inhaler by the user.

The utility model discloses a soybean seed breeding box belongs to the technical field of breeding box, this breeding box includes the box, one side fixed mounting of box draws the door, the inner wall sliding installation of box support platform, the support platform is rotationally installed support disc, a plurality of first installation hole is arranged on the support disc, and the culture cylinder is installed in the first installation hole, the fixed installation of culture cylinder top end position ring, the support disc is installed with the position ring cooperation's position component, the inner wall bottom of box is installed with drive component cooperation's support disc, the inner wall both sides fixed mounting of box heating plate, the inner wall top of box fixed mounting water injection component, this breeding box can install the position culture cylinder conveniently, and the stable temperature control controls water, and drive rotation is even, and the soybean seed breeding efficiency and quality are improved.

The utility model relates to the technical field of air jet looms, and discloses an air jet loom yarn guide plate device which comprises a base, supporting plates are symmetrically and fixedly connected to the two sides of the top of the base, yarn guide plates are fixedly connected to the inner sides of the supporting plates, and an electric push rod penetrates through and is fixedly connected to the outer side of the supporting plate on one side of the top of the base. The electric push rod is slidably connected into the yarn guide plate, a groove is formed in the yarn guide plate, a clamping box is fixedly connected into the groove, a rotating disc is rotatably connected into the clamping box, and a fourth sliding groove is formed in the top of the rotating disc. According to the clamping device, the rotating plate rotationally connected to the electric push rod drives the rotating disc to rotate, so that the rotating block at the top of the rotating disc is driven to rotate, and the position of the rotating block can be changed when the rotating block slides in the fourth sliding groove in the top of the rotating disc and the sliding groove in the top of the clamping box through the first sliding block and the second sliding block; therefore, the size of the yarn guide hole in the yarn guide plate is changed.

The application provides a bottom blowing gas supply mechanism for off-furnace refining, and relates to the technical field of steelmaking. The bottom blowing pipeline is connected with the bottom of a ladle; the argon gas supply pipeline is used for connecting an argon gas storage tank and the bottom blowing pipeline; the nitrogen gas supply pipeline is used for connecting a nitrogen gas storage tank and the bottom blowing pipeline; the nitrogen gas supply pipeline comprises a nitrogen gas total valve, a nitrogen gas flowmeter and a nitrogen gas flow regulating valve which are connected in sequence; the nitrogen gas flowmeter and the nitrogen gas flow regulating valve are associated; a first shunt valve is connected in series between the nitrogen gas total valve and the nitrogen gas flowmeter; a first bypass valve is connected in parallel with the nitrogen gas flowmeter; a second shunt valve is connected in parallel with the first shunt valve after the first shunt valve and the second shunt valve are connected in series with a first standard flowmeter. After the first shunt valve is closed, the second shunt valve and the first bypass valve are opened, the nitrogen gas flowmeter can be removed for offline calibration, inspection and maintenance, and the first standard flowmeter which remains can replace the nitrogen gas flowmeter to detect the nitrogen gas flow, so that the continuous supply of nitrogen gas is ensured.

The utility model discloses a single crystal black phosphorus piece packing device which comprises a fixing frame, a motor is fixedly connected to the upper surface of the fixing frame, a fixing rod is fixedly connected to the output end of the motor, a material conveying disc is fixedly connected to the bottom end of the fixing rod, a material containing opening is formed in the material conveying disc, and a material storage bin is arranged in the material containing opening. The bottom surface of the workbench is fixedly connected with an anti-vibration table, the bottom surface of the anti-vibration table is fixedly connected with a stand column, the inner side surface of the stand column is fixedly connected with an elastic column, the outer surface of the elastic column is provided with a damping spring and a sealing machine, and the sealing position of the sealing machine is provided with a constant-temperature sealing strip. And the situation that stacking or dislocation of the single-crystal black phosphorus pieces is affected due to too high or too low package conveying speed is avoided, the situation that the sealing quality is affected due to too high or too low temperature of a package sealing position is also avoided, and vibration in the packaging process is reduced.

The application provides a gas supply system and a control method thereof, which comprises a condenser and a first pipeline, a first flasher, a second pipeline, a compressor and an evaporator, one end of the first pipeline is in liquid communication with the condenser, an inlet end of the first flasher is in liquid communication with the other end of the first pipeline, one end of the second pipeline is in gas communication with the first flasher, the compressor comprises a shell, a first inlet end is arranged on the shell and is in gas communication with the other end of the second pipeline, a first outlet end is also arranged on the shell and is in communication with the evaporator, the shell has a mounting cavity, the first outlet end and the first inlet end are both in communication with the mounting cavity, and a gas supply part is arranged in the mounting cavity. The application generates high-pressure gas by using high-pressure liquid refrigerant in the flasher, discards the high-energy-consumption electric heater scheme, eliminates the heating electric energy consumption from the source, and solves the technical problem of large energy consumption of the compressor gas supply system in the prior art.