TC4 powder moisture-proof and anti-oxidation monitoring equipment based on temperature and humidity-oxygen content linkage

Abstract

The invention provides TC4 powder moisture-proof and anti-oxidation monitoring equipment based on temperature and humidity-oxygen content linkage, and belongs to the technical field of 3D printing material storage protection, the TC4 powder moisture-proof and anti-oxidation monitoring equipment comprises in-tank equipment arranged in a vacuum powder storage tank, the in-tank equipment comprises a sealing shell, and a control system module, a vibration alarm mechanism and an inert exhaust module are integrated in the sealing shell; the detection assembly and the exhaust pipeline are arranged outside the sealing shell, linkage monitoring of multiple parameters of temperature and humidity, oxygen content and air pressure is achieved through the detection assembly, limitation of single parameter monitoring is avoided, and the problems of environment abnormity misjudgment and early warning lag in an existing scheme are correspondingly solved; meanwhile, the control system module synchronously sends a control signal to the inert exhaust module when the oxygen content exceeds the standard, inert gas is accurately injected through an exhaust pipeline, powder oxidation is actively inhibited, and the defects that an existing protection mode is passive and cannot treat oxygen-containing air are effectively overcome.

Description

Technical Field

[0001] This application belongs to the field of 3D printing material storage protection technology, and in particular relates to a TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage. Background Technology

[0002] TC4 titanium alloy powder, with its excellent biocompatibility, high strength and mechanical properties, and corrosion resistance, has become a core raw material in the 3D printing field (especially in the manufacture of medical-grade dentures and orthopedic implants). Currently, the mainstream storage method for TC4 powder is vacuum powder tank sealing. Although this method can isolate it from the outside air in the initial stage, it has core technical defects that are difficult to avoid in long-term use, and the existing supporting monitoring and protection solutions cannot meet the high storage requirements of medical-grade powder.

[0003] On the one hand, existing solutions lack a multi-parameter linkage monitoring mechanism, and the judgment of environmental anomalies is one-sided. After long-term use, the sealing strips of vacuum powder storage tanks are prone to aging, and micro-leakage is likely to occur at the tank opening, allowing external oxygen and moisture to seep into the tank. However, existing monitoring solutions mostly target only a single parameter (such as only monitoring the vacuum level inside the tank), which cannot comprehensively capture environmental changes, resulting in delayed anomaly warnings, a high rate of misjudgment, and an inability to intervene in protection in a timely manner.

[0004] On the other hand, existing protective measures have significant shortcomings, making it difficult to achieve efficient and precise protection. When faced with abnormal environments inside the tank, existing solutions are mostly limited to single passive measures, unable to actively intercept and treat the oxygen-containing / humid air that has already seeped in. This allows harmful gases to continuously contact the powder, accelerating oxidation and moisture absorption. Furthermore, there are no specific humidity control measures, and relying solely on inert gas dilution is insufficient to remove the moisture absorbed by the powder, failing to fundamentally prevent moisture absorption from damaging the powder's performance.

[0005] In summary, current TC4 powder storage monitoring solutions have significant deficiencies in terms of comprehensiveness, proactive protection, and accuracy, failing to guarantee the storage quality of TC4 powder for medical 3D printing. There is an urgent need for an integrated monitoring device that can achieve "multi-parameter linkage monitoring - proactive collaborative protection - intelligent safety early warning" to fundamentally solve the problem of TC4 powder oxidation and moisture absorption, reduce production risks, and ensure the quality of end medical products. Summary of the Invention

[0006] This application provides a TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity, and oxygen content linkage. It integrates a control system module, vibration alarm mechanism, and inert gas exhaust module within a sealed housing, along with external detection components and an exhaust pipeline, forming a highly efficient and collaborative monitoring and protection system. The detection components achieve multi-parameter linkage acquisition of temperature, humidity, oxygen content, and air pressure, completely solving the problems of misjudgment of environmental anomalies and delayed early warning caused by single-parameter monitoring in existing solutions. When the oxygen content exceeds the standard, the control system module synchronously triggers the inert gas exhaust module, precisely injecting inert gas through the exhaust pipeline to actively inhibit TC4 powder oxidation, effectively improving the shortcomings of traditional protection methods that are passive and unable to handle oxygen-containing air. Meanwhile, the vibration alarm mechanism transmits vibration signals to the tank through the sealed shell, ensuring timely feedback of abnormalities. The integrated design of the sealed shell and the sealed connection with the pipeline ensure the sealing performance of the vacuum powder storage tank, accurately adapting to the stringent storage requirements of medical-grade powders. This solves the problems of existing TC4 powder vacuum storage monitoring and protection equipment, which can only monitor a single parameter, easily leading to misjudgment of environmental anomalies and delayed early warnings. The protection method is passive and singular, unable to actively deal with infiltrated oxygen / humid air, and lacks specific humidity control measures, making it difficult to fundamentally solve the problem of powder oxidation and moisture absorption, and thus failing to meet the requirements of medical-grade storage.

[0007] This application provides a TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage, including an internal device installed in a vacuum powder storage tank. The internal device includes a sealed shell, which integrates a control system module, a vibration alarm mechanism and an inert exhaust module. The sealed shell is provided with a detection component and an exhaust pipe outside the sealed shell. The detection component is used to collect temperature, humidity, oxygen content, and air pressure parameters inside the vacuum powder storage tank in real time and transmit them to the control system module. When any one of the temperature, humidity, oxygen content, or air pressure parameters exceeds the corresponding preset threshold, the control system module is used to send a first control signal to the vibration alarm mechanism. When the oxygen content exceeds the corresponding preset threshold, the control system module is used to simultaneously send a second control signal to the inert exhaust module. The vibration alarm mechanism is used to respond to the first control signal, generate a preset frequency vibration and transmit it to the sealed shell and the vacuum powder storage tank to realize the alarm trigger inside the tank; the inert exhaust module is used to respond to the second control signal, inject inert gas into the designated position through the exhaust pipe to suppress the oxidation of TC4 powder.

[0008] In one feasible implementation, the sealed housing is further provided with an exhaust gas intake module, and the outer wall of the sealed housing is provided with an intake pipe that communicates with the exhaust gas intake module. When any one of the parameters—temperature, humidity, oxygen content, or air pressure—exceeds the corresponding preset threshold, the control system module sends a third control signal to the exhaust gas suction module; the exhaust gas suction module responds to the third control signal by extracting oxygen-containing / humid air from the detection location inside the vacuum powder storage tank through the suction pipeline.

[0009] In one feasible implementation, the inert gas exhaust module includes a heater for heating the inert gas; When the humidity inside the vacuum powder storage tank is higher than the corresponding preset threshold and / or the temperature is lower than the corresponding preset threshold, the control system module is used to send a fourth control signal to the heater. The heater is used to respond to the fourth control signal to heat the inert gas, so that the high-temperature inert gas is injected into the can to increase the powder temperature and reduce the powder humidity.

[0010] In one feasible implementation, the monitoring equipment also includes an external alarm device installed outside the vacuum powder storage tank; The external alarm device is used to detect vibration signals of the vacuum powder storage tank body and push alarm information to an external mobile terminal when a vibration signal is detected.

[0011] In one feasible implementation, the detection assembly includes a first metal flexible tube, a sealed cover, a temperature and humidity probe, an oxygen content probe, and a pressure probe. One end of the first metal hose is sealed to the sealing shell, and the other end is fixedly connected to the sealing cover. An air vent is provided on the side wall of the sealing cover. The temperature and humidity probe, oxygen content probe, and air pressure probe are all fixed inside the sealed cover, and their wires are run through the first metal flexible tube and electrically connected to the control system module. The detection component is integrated with the air intake pipeline. The air intake end of the exhaust gas intake module is connected to the inside of the first metal hose, and the air around the sealed cover is drawn out through the first metal hose.

[0012] In one feasible implementation, the sealing housing includes a first outer shell, the outer wall of which is provided with a first sealing joint; the first sealing joint includes a first cylindrical body and a first sealing plug, one end of the first cylindrical body is provided with a first screw hole, and the other end is provided with a second screw hole and three mating terminals; The first screw hole is screwed and sealed to the first sealing plug or the first metal hose; the second screw hole is sealed and connected to the intake end of the exhaust gas intake module. The wires of the temperature and humidity probe, the oxygen content probe, and the air pressure probe are electrically connected to the first end of the three docking terminals, and the second end of the three docking terminals is electrically connected to the control system module through wires.

[0013] In one feasible implementation, the outer wall of the first housing is further provided with a second sealing joint, the second sealing joint including a second cylinder and a second sealing plug, one end of the second cylinder is provided with a third screw hole and the other end is provided with a fourth screw hole; The third screw hole is sealed to the second sealing plug or the exhaust pipe; the fourth screw hole is sealed to the exhaust end of the inert exhaust module through a connecting pipe.

[0014] In one feasible implementation, three trays are spaced apart from top to bottom inside the first housing. The control system module and the vibration alarm mechanism are disposed on the upper tray, the exhaust gas intake module is fixed on the middle tray, and the inert exhaust module is fixed on the lower tray. Each of the trays has multiple locking components evenly distributed along its outer edge in the circumferential direction, and the inner wall of the first outer shell has three layers of locking components, with multiple locking components in the same layer distributed along the circumferential direction of the inner wall; the trays are locked to the corresponding layer of locking components through the locking components.

[0015] In one feasible implementation, a first through hole is provided at the top of the first outer shell, and a first elastic pad is fixedly provided in the first through hole; The vibration alarm mechanism includes an elastic mounting platform and a vibrator. The elastic mounting platform is fixed to the upper support plate and faces the first elastic pad. The vibrator is fixed to the elastic mounting platform. The top of the vibrator abuts against the first elastic pad, and the outer side of the first elastic pad abuts against the inner wall of the vacuum powder storage tank, forming a vibration transmission path.

[0016] In one feasible implementation, the external alarm device includes a second housing, an elastic push rod, and a vibration sensor. The bottom end of the second housing has a second through hole, and a second elastic pad is fixedly installed inside the second through hole. The elastic push rod is fixed to the inner wall of the bottom end of the second housing, with its telescopic end facing the second elastic pad, and the vibration sensor is fixed to the telescopic end of the elastic push rod; The vibration sensor abuts against the outer wall of the vacuum powder storage tank via the second elastic pad, and is used to detect the tank vibration signal.

[0017] This application provides a TC4 powder moisture-proof and anti-oxidation monitoring device based on temperature, humidity, and oxygen content linkage. It integrates a control system module, vibration alarm mechanism, and inert gas exhaust module within a sealed housing, along with a core structure consisting of detection components and exhaust pipes outside the sealed housing. The detection components enable multi-parameter linkage monitoring of temperature, humidity, oxygen content, and air pressure, avoiding the limitations of single-parameter monitoring and addressing the problems of misjudgment and delayed early warning in existing solutions. Simultaneously, when the oxygen content exceeds the standard, the control system module sends a control signal to the inert gas exhaust module, precisely injecting inert gas through the exhaust pipe to actively inhibit powder oxidation, effectively improving the passive nature and inability to handle oxygen-containing air inherent in existing protection methods. Furthermore, the vibration alarm mechanism transmits vibration alarm signals to the vacuum powder storage tank through the sealed housing, providing timely feedback on abnormal conditions and further compensating for the untimely early warnings in existing solutions. The integrated design of the sealed housing and the sealed connection of the pipes ensure the sealing performance of the vacuum powder storage tank, precisely adapting to the requirements of medical-grade storage environments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage provided in this application; Figure 2 This is a sectional view of the equipment inside the tank; Figure 3 This is a schematic diagram of the detection component; Figure 4 This is a schematic diagram of the external alarm device; Figure 5 It is a sectional view of the structural schematic diagram; Figure 6 This is a schematic diagram of the sealed housing structure; Figure 7 yes Figure 6 Enlarged view of point A in the middle; Figure 8 yes Figure 6 Enlarged view of point B in the middle; Figure 9 This is a structural diagram of a vibration alarm mechanism.

[0019] Explanation of reference numerals in the attached figures: 100-Sealed housing; 200-Control system module; 300-Vibration alarm mechanism; 400-Inertial exhaust module; 500-Detection component; 600-Exhaust pipeline; 700-Exhaust gas intake module; 800-External alarm device; 900-Power supply module; 110-First outer casing; 120-First sealing joint; 130-Second sealing joint; 140-Panel; 150-First magnetic ring; 310-Elastic mounting platform; 320-Vibrator; 410-Heater; 420-Flow valve; 430-Inert gas tank; 510-First metal hose; 520-Sealing cover; 530-Temperature and humidity probe; 540-Oxygen content probe; 550-Gas pressure probe; 610-Second metal hose; 620-Nozzle; 710-Gas storage tank; 720-Air pump; 810-Second outer casing; 820-Elastic push rod; 830-Vibration sensor; 840-Second battery; 850-Bluetooth communication module; 860-Second magnetic ring; 111-Snap-fit ​​component; 112-First through hole; 113-First elastic pad; 121-First cylinder; 122-First sealing plug; 123-First screw hole; 124-Second screw hole; 125-Matching terminal; 131-Second cylinder; 132-Second sealing plug; 133-Third screw hole; 134-Fourth screw hole; 141-Snap-fit ​​component; 311-Mounting plate; 312-Limiting rod; 313-First spring; 314-Bearing plate; 521-Air port; 811-Second through hole; 812-Second elastic pad; 821-Outer cylinder; 822-Inner cylinder; 823-Second spring. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0021] Currently, existing monitoring and protection solutions for vacuum powder storage tanks have significant shortcomings: they can only monitor a single environmental parameter and cannot comprehensively capture changes in temperature, humidity, oxygen content, and air pressure inside the tank, which can easily lead to misjudgments of environmental anomalies and delayed early warnings; the protection methods are passive and singular, lacking effective means to actively deal with the infiltration of oxygen-containing / humid air, and there is no targeted humidity control function, making it difficult to inhibit powder oxidation and moisture absorption at the source; at the same time, the early warning mechanism is imperfect, and the transmission of abnormal signals is not timely, which cannot meet the stringent requirements of medical-grade powder for the storage environment, thus restricting the quality and stability of 3D printed medical products.

[0022] The TC4 powder moisture-proof and oxidation-proof monitoring device provided in this application, based on temperature, humidity, and oxygen content linkage, integrates a control system module 200, a vibration alarm mechanism 300, and an inert gas exhaust module 400 within a sealed housing 100. Combined with an external detection component 500 and an exhaust pipe 600, this core structure forms a highly efficient and collaborative monitoring and protection system. The detection component 500 achieves multi-parameter linkage acquisition of temperature, humidity, oxygen content, and air pressure, completely solving the problems of misjudgment of environmental anomalies and delayed early warning caused by single-parameter monitoring in existing solutions. When the oxygen content exceeds the standard, the control system module 200 simultaneously triggers the inert gas exhaust module 400, precisely injecting inert gas through the exhaust pipe 600 to actively inhibit TC4 powder oxidation, effectively improving the shortcomings of traditional passive protection methods that cannot handle oxygen-containing air. Simultaneously, the vibration alarm mechanism 300 transmits vibration signals to the tank through the sealed housing 100, ensuring timely feedback of anomalies. The integrated design of the sealed housing and the sealed connection with the pipeline ensure the sealing performance of the vacuum powder storage tank, precisely adapting to the stringent storage requirements of medical-grade powders.

[0023] The following description, in conjunction with the accompanying drawings, details the specific structure of the TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage provided in this application.

[0024] Reference Figures 1-9 As shown, this application embodiment provides a TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage, including an internal device installed in a vacuum powder storage tank. The internal device includes a sealed housing 100, which integrates a control system module 200, a vibration alarm mechanism 300 and an inert exhaust module 400. A detection component 500 and an exhaust pipe 600 are provided outside the sealed housing 100. The control system module 200 includes an MCU main control chip (model can be STM32F103), a data storage unit (model can be AT24C02), a signal amplification unit, and an IO interface unit. It is electrically connected to other modules through the IO interface unit, and can realize parameter analysis, command issuance and data storage.

[0025] The detection component 500 is used to collect real-time data on temperature, humidity, oxygen content, and air pressure inside the tank, at a frequency of once per minute. The data is transmitted to the control system module 200. The system pre-stores medical-grade TC4 powder thresholds, which can be: temperature 20-25℃, humidity ≤5%RH, oxygen content ≤0.13%, and air pressure. - .

[0026] When any of the actual parameters exceeds the threshold (e.g., oxygen content 0.15%, others normal), the control system module 200 sends a first control signal to the vibration alarm mechanism 300; when the oxygen content exceeds the threshold, a second control signal is simultaneously sent to the inert exhaust module 400. The vibration alarm mechanism 300 responds to the first control signal and generates a 1Hz-5Hz vibration, which is transmitted to the tank. The inert gas exhaust module 400 responds to the second control signal and injects inert gas at a rate of 0.5-1L / min through the exhaust pipe 600 to suppress powder oxidation.

[0027] By integrating the sealed structure of the sealed housing 100 with the core module, and combining multi-parameter monitoring and active protection, the problems of single-parameter misjudgment and passive protection in existing solutions are solved. The power module 900 ensures stable power supply and is adapted to medical-grade storage requirements.

[0028] In one embodiment, the data storage unit (AT24C02, storage capacity 256KB) of the control system module 200 adopts a circular storage method to store the parameter data (including temperature, humidity, oxygen content, and air pressure) collected by each detection component 500 in real time. The storage frequency is consistent with the acquisition frequency (1 time / minute), and it can retain the historical data of the most recent 30 days. When the storage capacity is full, it automatically overwrites the oldest historical data to ensure data continuity.

[0029] Reference Figure 2 As shown, in one embodiment, a power module 900 is also integrated inside the sealed housing 100. The power module 900 includes two 18650 lithium batteries (capacity 4000mAh, voltage 7.4V) connected in series, an LM1117-12 voltage regulator unit (output 12V / 1A), and a MAX17048 power monitoring module, which provide power to each power-consuming module.

[0030] Reference Figure 2 As shown, in one embodiment, the exhaust pipe 600 includes a second metal hose 610 (made of 304 stainless steel, with an outer diameter of 8 mm, an inner diameter of 6 mm, and a length of 15 cm) and a nozzle 620 (made of polytetrafluoroethylene). The nozzle 620 has a 1 μm filter screen at its air outlet, which faces the inner wall of the vacuum powder storage tank and has a distance of ≥5 mm from the surface of the TC4 powder to avoid powder agglomeration.

[0031] In one embodiment, the sealing cover 520 of the detection component 500 is deployed in the upper region of the vacuum powder storage tank, 15cm-20cm below the sealing ring on the top of the tank, and maintains a horizontal distance of ≥5cm from the sealing ring of the tank body to avoid debris generated by the aging of the sealing ring from contaminating the probe; the bottom of the sealing cover 520 is 30cm-40cm away from the surface of the powder, and the air port 521 faces the central axis of the tank body to ensure that the environmental parameters of the core area inside the tank are collected without being affected by the local airflow at the edge of the tank body.

[0032] In one embodiment, the nozzle 620 of the exhaust pipe 600 is installed in the lower part of the vacuum powder storage tank, located 20cm-25cm above the powder surface, and is diagonally distributed with the detection component 500 in the axial direction of the tank (the detection component 500 is on the upper side near the tank opening, and the nozzle is on the lower side near the bottom of the tank), forming a "diagonal airflow circulation". The nozzle 620 faces the side wall of the tank and maintains a distance of ≥20cm from the powder surface to avoid inert gas directly impacting the powder and causing agglomeration, while ensuring that the gas can fully cover the powder storage area when it diffuses upward from the bottom.

[0033] In one embodiment, the first metal hose 510 of the detection component 500 and the second metal hose 610 of the exhaust pipe 600 are both arranged along the inner wall of the vacuum powder storage tank. The radial distance between the two and the tank sealing ring is ≥8cm, and they do not directly contact the sealing ring to prevent pipeline vibration or temperature changes from affecting the sealing performance of the sealing ring. The air inlet end of the air intake pipe of the detection component and the airflow diffusion direction of the nozzle 620 are complementary to ensure that oxygen-containing / humid air can be quickly extracted, thereby improving the gas replacement efficiency.

[0034] By employing an axial diagonal layout, layered deployment, and a safe distance design from the sealing ring, the problems of inaccurate parameter acquisition, incomplete gas replacement, and impact on sealing ring performance caused by unreasonable detection and exhaust positions are solved, thus balancing monitoring accuracy, protection effect, and tank sealing stability.

[0035] In one embodiment, the nozzle 620 of the exhaust pipe 600 is equipped with an airflow guide shroud (made of polytetrafluoroethylene, conical in shape, with a cone angle of 60° and a length of 20mm). The opening of the guide shroud faces the inner wall of the vacuum powder storage tank and is 10mm away from the tank body. This allows the inert gas to flow along the tank wall after being ejected and then slowly diffuse into the space inside the tank, preventing the airflow from directly impacting the surface of the TC4 powder and causing powder agglomeration or dust. This protects the flowability of the powder (TC4 powder flowability is required to be ≤15s / 50g, and it is easy to rise to more than 20s after disturbance).

[0036] In one embodiment, an anti-powder-absorbing cover (made of stainless steel, hemispherical, with a filter screen of 0.5mm aperture) is added to the air inlet end of the suction pipe. The distance between the anti-powder-absorbing cover and the powder surface is ≥30mm to prevent the intake of trace amounts of powder from clogging the pipe when humid air is drawn in. When a 10% decrease in the flow rate of the suction pipe is detected (e.g., the normal flow rate drops from 0.75L / min to 0.675L / min), the control system module 200 determines that the anti-powder-absorbing cover may be blocked and pushes the message "Abnormal flow rate of suction pipe, possibly blocked anti-powder-absorbing cover, needs to be checked".

[0037] In one embodiment, when the inertial exhaust module 400 and the exhaust gas intake module 700 work simultaneously, the control system module 200 controls the working sequence of the two: first, exhaust is started for 10 seconds (to form an airflow guide), and then intake is started to avoid airflow collision that would cause airflow turbulence in the tank; for example, when the oxygen content is 0.14% and the humidity is 6%RH, gas is first injected at 0.75L / min for 10 seconds, and then extracted at 0.75L / min, and the cycle is repeated until the parameters are normal.

[0038] By employing an airflow guide hood and an anti-powder-absorption hood, the problem of powder disturbance caused by inert gas impact is solved. Timing control avoids airflow turbulence, ensuring the physical properties (flowability, sphericity) of TC4 powder and adapting it to the stringent storage environment requirements of medical-grade powders. Reference Figure 2 As shown, in one embodiment, the sealed housing 100 is further provided with an exhaust gas intake module 700, and the outer wall of the sealed housing 100 is further provided with an intake pipe connected to the exhaust gas intake module 700. The intake pipe can be made of polytetrafluoroethylene. The air inlet end of the intake pipe is close to the detection component 500, which can accurately extract oxygen-containing / humid air at the detection position.

[0039] When any parameter exceeds the threshold (e.g., humidity 6%RH, other parameters normal), the control system module 200 sends a third control signal to the exhaust gas intake module 700; the air pump 720 responds to the third control signal and draws air through the intake pipeline, and the gas is temporarily stored in the air storage tank 710 for unified processing during maintenance; if the oxygen content is 0.14% and the humidity is 6%RH, the system simultaneously sends the second and third control signals to achieve the coordinated "injection of inert gas + dehumidification of air".

[0040] The exhaust gas intake module 700 solves the problem of existing solutions only injecting gas without extracting it and incomplete gas replacement. The gas storage tank 710 avoids pollution and further improves the moisture-proof and oxidation-proof effect.

[0041] Reference Figure 2 As shown, in one embodiment, the exhaust gas intake module 700 includes an air tank 710 and an air pump 720. The air tank 710 can be made of 316L stainless steel with a volume of 0.5L-1L. The air pump 720 can be a miniature vacuum pump with a flow rate of 0.5L / min-1L / min. The air pump 720's intake port is connected to the intake pipeline, and the intake flow rate matches the exhaust flow rate of the inertial exhaust module 400 to ensure stable air pressure inside the tank.

[0042] Reference Figure 2 As shown, in one embodiment, the inert exhaust module 400 includes a heater 410, which may be a ceramic heating element with a power of 50W-100W and a heating temperature of 40℃-50℃. When the humidity is greater than 5%RH and / or the temperature is less than 20℃ (e.g., temperature 19℃, humidity 6%RH), the control system module 200 sends a fourth control signal to the heater 410; the heater 410 responds to the fourth control signal and heats the inert gas to 45℃. The high-temperature gas is injected into the tank to accelerate the evaporation of moisture, and in conjunction with the exhaust gas suction module 700, the humidity is rapidly reduced; if the temperature is 18℃ and the oxygen content is 0.15%, the system simultaneously sends the second and fourth control signals to achieve "anti-oxidation + temperature control" synergy.

[0043] Heater 410 solves the problem of poor moisture protection in low-temperature and humid environments.

[0044] In one embodiment, the heater 410 is further equipped with a temperature feedback unit (PT100 platinum resistance sensor) to collect the temperature of the inert gas after heating in real time, with a collection frequency of 1 time / 10 seconds, and the temperature data is transmitted to the control system module 200; when the humidity inside the tank is >5%RH and the temperature is <20℃ (e.g., humidity 7%RH, temperature 18℃), the control system module 200 adjusts the heater temperature according to the humidity deviation: when the humidity deviation is 1%RH-2%RH (5%RH-7%RH), the heater temperature is controlled at 40℃; when the humidity deviation is >2%RH (e.g., 8%RH), the heater temperature is controlled at 50℃ to accelerate the water evaporation efficiency.

[0045] In one embodiment, after high-temperature inert gas is injected into the tank, the detection component 500 monitors the humidity change in real time: if the humidity drops from 7%RH to 5%RH (threshold), the control system module 200 controls the heater temperature to drop to 35°C to maintain low-power operation, while keeping the exhaust gas suction module 700 running for 2 minutes to ensure that the evaporated moisture is fully discharged; if the humidity continues to drop to 4%RH, the heater is turned off, and the exhaust gas suction module 700 is only kept running for 1 minute before being turned off to avoid excessive dehumidification causing the powder to dry and crack.

[0046] By linking temperature feedback with humidity deviation control, the temperature regulation accuracy of high-temperature inert gas is optimized, solving the problem of low dehumidification efficiency or over-dehumidification caused by fixed heating temperature in existing solutions. This adapts to different humidity scenarios and ensures the storage quality of TC4 powder.

[0047] Reference Figure 2 As shown, in one embodiment, the inert gas exhaust module 400 further includes a flow valve 420 and an inert gas tank 430. The flow valve 420 may be an electromagnetic flow valve, model number 2W160-15, and the inert gas tank 430 may be made of 316L stainless steel with a volume of 0.5L-1L.

[0048] Inert gas cylinder 430 is used to store inert gas, which may be nitrogen. Argon (Ar), helium (He), etc. are used. The flow valve 420 is set on the inert gas tank 430 and is connected to the inlet end of the heater 410 through a silicone hose. The outlet end of the heater 410 is connected to the exhaust pipe 600 to form a "flow valve-heater-exhaust pipe" passage.

[0049] In one embodiment, the flow valve 420 of the inert gas exhaust module 400 supports multi-level opening control. The control system module 200 adjusts the flow rate in stages according to the extent to which the oxygen content exceeds the threshold: when the oxygen content exceeds the threshold by 0.01%-0.03% (e.g., 0.14%-0.16%), the flow valve 420 is controlled to open at 50%, and the inert gas flow rate is 0.75 L / min; when the oxygen content exceeds the threshold by >0.03% (e.g., 0.17%), the flow valve 420 is controlled to open at 100%, and the flow rate is 1 L / min to accelerate gas replacement; when the oxygen content drops below the threshold by 0.01% (e.g., 0.12%), the flow valve 420 is controlled to open at 20%, and the flow rate is 0.2 L / min to maintain the inert gas atmosphere in the tank and avoid pressure fluctuations caused by excessive flow.

[0050] In one embodiment, when the oxygen content drops from 0.16% to 0.13% (threshold), the control system module 200 does not immediately close the flow valve 420, but maintains it at 20% opening for 5 minutes to ensure that the oxygen-containing air in the tank is fully replaced before closing the flow valve to avoid a rebound in oxygen content; if the oxygen content stabilizes at 0.12% after 5 minutes, the flow valve is completely closed; if the oxygen content rises back to 0.14%, the flow valve opening is readjusted to 50%.

[0051] By controlling the flow rate in stages by varying the oxygen content, the problem of gas waste or incomplete replacement caused by fixed flow rates in existing solutions is solved. This approach balances protection effectiveness with energy-saving requirements and improves the utilization efficiency of inert gases.

[0052] In one embodiment, an air source pressure sensor (model MPX5010DP, measurement range 0kPa-100kPa, accuracy ±1kPa) is added to the air inlet end of the inert gas exhaust module 400 to monitor the pressure of the external inert gas source (such as a nitrogen cylinder) in real time, and the monitoring data is transmitted to the control system module 200. When the gas source pressure drops to 10kPa (lower than the normal operating pressure of 20kPa), the control system module 200 sends a first control signal (2Hz intermittent vibration) to the vibration alarm mechanism 300, and pushes the message "Inert gas source pressure is low (9kPa), the remaining gas volume is insufficient, and the gas cylinder needs to be replaced in time" to remind the staff to prepare a backup gas source in advance.

[0053] Reference Figure 1 , Figure 4 and Figure 5As shown, in one embodiment, the monitoring equipment also includes an external device installed inside the vacuum powder storage tank, which is an external alarm device 800; The external alarm device 800 is used to detect vibration signals of the vacuum powder storage tank body and push alarm information to an external mobile terminal when a vibration signal is detected.

[0054] The external alarm device 800 detects vibrations in the vacuum powder storage tank and links with an APP to solve the problems of untimely alarm information transmission and inability to be remotely detected in existing solutions.

[0055] Reference Figure 5 As shown, in one embodiment, the external alarm device 800 includes a second housing 810, a vibration sensor 830, a second battery 840, and a Bluetooth communication module 850. The second outer shell 810 is preferably cylindrical, made of PC-757 material, with an outer diameter of 60mm and a height of 100mm. It consists of an upper shell (40mm) and a lower shell (60mm), which are screwed together and equipped with a nitrile rubber sealing gasket with a sealing rating of IP65. When the vibration alarm inside the tank is triggered (e.g., temperature 27℃, oxygen content 0.15%), the tank vibration is transmitted to the vibration sensor 830, and the sensor outputs a high level; the Bluetooth module 850 pushes an APP message ("Temperature 27℃, oxygen content 0.15%, inertial exhaust and exhaust gas intake have been started"), and triggers the phone ringtone; when the parameters return to normal (temperature 23℃, oxygen content 0.12%), a "back to normal" message is pushed.

[0056] In one embodiment, the second battery 840 can be an 18650 lithium battery (2000mAh, 3.7V) paired with a TP4056 charging module; the Bluetooth communication module 850 can be an HC-08 type BLE5.0 with a communication distance of ≤10m, supporting linkage with the "TC4 Powder Monitoring" APP; the bottom inner wall of the second housing 810 is provided with a second magnetic ring 860 (N35 neodymium iron boron, inner diameter 40mm, outer diameter 50mm, thickness 5mm), which can adsorb the vacuum powder storage tank to achieve rapid fixation.

[0057] Reference Figure 5 As shown, in one embodiment, the second outer shell 810 has a second through hole 811 (diameter 15mm) at the bottom end, and a second elastic pad 812 (silicone, diameter 15mm, thickness 3mm, Shore hardness 45±5HA) is built in. The external alarm device 800 also includes an elastic push rod 820, which includes an outer cylinder 821 (ABS, inner diameter 12mm, outer diameter 15mm, length 30mm), an inner cylinder 822 (ABS, inner diameter 10mm, outer diameter 12mm, length 25mm), and a second spring 823 (piano wire, wire diameter 0.8mm, outer diameter 10mm). The second spring 823 provides a downward force of ≥10N, causing the vibration sensor 830 (SW-420 type) at the bottom of the inner cylinder 822 to press the second elastic pad 812 and fit tightly against the tank.

[0058] In one embodiment, an external environment sensor (model SHT31, measuring temperature -40℃-125℃, humidity 0-100%RH, accuracy ±0.3℃ / ±2%RH) is added to the outer wall of the second outer shell 810 of the external alarm device 800. The sensor collects the ambient temperature and humidity outside the vacuum powder storage tank in real time and transmits the data to the control system module 200. The system performs correlation analysis between the external environmental parameters and the parameters inside the tank. If the external humidity is >60%RH and the rate of increase of the humidity inside the tank is ≥0.5%RH / h (e.g., if the external humidity is 65%RH, the humidity inside the tank rises from 4%RH to 5%RH in only 2 hours), it is determined that the sealing performance of the tank may have deteriorated, and a message "external humidity is high (65%RH), the humidity inside the tank is rising too fast, it is recommended to check the sealing performance of the tank" is pushed.

[0059] In one embodiment, when the external temperature drops by ≥5°C / hour (e.g., from 25°C to 18°C ​​in just 1 hour), the control system module 200 activates the heating insulation layer in advance (even if the temperature inside the tank is still 20°C) to maintain the internal temperature of the shell at 22°C, preventing external low temperature from being conducted into the tank and causing temperature fluctuations that could affect the stability of powder storage; if the external temperature rises by ≥5°C / hour, the exhaust gas suction module 700 is activated to continuously extract air at a low flow rate (0.3L / min) to balance the temperature inside the tank.

[0060] In one embodiment, data from external environmental sensors and data from inside the tank are stored synchronously to form an "external-internal" parameter comparison report. For example, the report shows that "when the external humidity is 60%RH, the internal humidity is stable at 4%RH; when the external humidity is 70%RH, the internal humidity rises to 5%RH," providing data for staff to assess the tank's sealing performance and facilitating timely replacement of aging seals.

[0061] By monitoring the external environment, the problem of existing solutions focusing only on the internal environment of the tank and ignoring external influencing factors is solved, realizing proactive protection of "external early warning and internal early control" and reducing the interference of external environmental changes on internal storage.

[0062] Reference Figure 2As shown, in one embodiment, the detection component 500 includes a first metal flexible tube 510, a sealing cover 520, a temperature and humidity probe 530, an oxygen content probe 540, and a pressure probe 550. The first metal flexible tube 510 may be made of 304 stainless steel, with an outer diameter of 8mm, an inner diameter of 6mm, a length of 15cm, and can be bent at 360°. It shows no corrosion after 48 hours of salt spray testing. The sealing cover 520 may be made of polytetrafluoroethylene, is hemispherical, and has a volume of 5cm³-10cm³. The side air vent 521 is equipped with a 1μm filter screen. The temperature and humidity probe 530 can be an SHT30 probe with an accuracy of ±2%RH / ±0.3℃; the oxygen content probe 540 can be an electrochemical sensor with an accuracy of ±0.01%; and the pressure probe 550 can be an MPS20N0040D sensor with an accuracy of ±0.2kPa. The sampling frequency is 1 time / minute, and the data is transmitted to the control system module 200. One end of the first metal flexible hose 510 is screwed and sealed to the first sealing joint 120, and the other end is ultrasonically welded to the sealing cover 520; three probes are fixed to the sealing cover by screws, and wires are passed through the metal flexible hose (with an outer polytetrafluoroethylene insulation layer) and electrically connected to the control system module 200; the detection component 500 is integrated with the air intake pipeline, and the exhaust gas intake module 700 draws air from the periphery of the sealing cover through the first metal flexible hose 510 to achieve synchronous "detection-extraction".

[0063] When the detection component 500 detects an oxygen content of 0.13% (equal to the threshold) and a humidity of 5%RH (equal to the threshold), the system does not send a signal; if the oxygen content is 0.16% (exceeding the threshold of 0.03%), the system sends a high-frequency vibration (5Hz, lasting for 5 minutes) and a high-flow-rate gas injection (1L / min) signal to ensure that the staff can detect it.

[0064] The filter and metal hose design of the Detection Component 500 solves the problems of probe contamination and fixed detection position, and the integrated intake tubing improves response efficiency.

[0065] In one embodiment, the pressure probe 550 monitors the internal pressure of the tank in real time, and when the pressure rises to 1.1 × 10⁻⁶, it detects the pressure inside the tank. When the pressure approaches the opening pressure of the pressure relief valve, the control system module 200 sends a third control signal to the exhaust gas intake module 700 to increase the intake flow rate to 1.2 L / min, while simultaneously reducing the opening of the flow valve 420 of the inertial exhaust module 400 to 30% (flow rate 0.45 L / min), actively regulating the air pressure; if the air pressure continues to rise to 1.2 × The pressure relief valve 160 automatically opens to relieve pressure, and the control system module 200 simultaneously sends an alarm signal (the vibration alarm mechanism 300 generates a 5Hz vibration, and the external alarm device 800 pushes the message "The gas pressure inside the tank is too high, and pressure relief has been initiated").

[0066] In one embodiment, after depressurization, the gas pressure drops to 1.0 × The pressure relief valve 160 automatically closes, and the control system module 200 adjusts the flow rates of the exhaust gas intake module 700 and the inertial exhaust module 400 to restore them to a matching state (both 0.75 L / min), maintaining the gas pressure stable at 1.0 × 10⁻⁶. about.

[0067] By combining the pressure relief valve with active air pressure regulation, the risk of tank damage caused by the lack of air pressure safety protection in existing solutions is resolved, achieving dual protection of "active regulation + passive pressure relief" in case of abnormal air pressure, thereby improving the safety of equipment operation.

[0068] Reference Figure 6 As shown, in one embodiment, the core structure of the sealing housing 100 is a first outer shell 110, which is preferably cylindrical and made of 316L stainless steel. It includes an upper shell and a lower shell, which are connected by external threads. A fluororubber sealing gasket is provided on the mating surface to ensure a vacuum sealing level of [missing information]. The first outer shell has an inner diameter of 80mm and a height of 200mm, and is suitable for installation of various modules. Reference Figure 7 As shown, the outer wall of the first outer shell 110 is provided with multiple first sealing joints 120. There can be 2-4 first sealing joints 120, which can be made of 316L stainless steel, with a length of 5-8mm and an outer diameter of 10-12mm. Each first sealing joint 120 includes a first cylindrical body 121 and a first sealing plug 122. The outer end of the first cylindrical body 121 is provided with a first screw hole 123 (M10×1), which can be screwed to a first metal hose 510 (wrapped with 3-5 layers of polytetrafluoroethylene raw material tape) or a first sealing plug 122 (fluororubber, diameter 10mm). The inner end is provided with a second screw hole 124 (M8×1) and three mating terminals 125 (copper plated with nickel, needle-type structure, with elastic buckle).

[0069] The docking terminals 125 are distributed circumferentially along the inner wall of the first cylinder 121 (at 120° intervals), with the outer end extending 2mm-3mm and the inner end connected to the wires of the control system module 200; the probe wire pins of the detection component 500 are inserted into the conductive holes of the docking terminals 125 and secured by elastic buckles to prevent them from falling off.

[0070] When there are 4 first sealing joints 120 and 2 detection components 500, 2 first sealing joints 120 are screwed to metal hoses, and the rest are screwed to first sealing plugs 122; multi-point detection can capture parameters in different areas inside the tank (such as oxygen content of 0.14% at the top and 0.12% at the bottom), and the system judges based on the highest value to avoid missing local anomalies.

[0071] Multiple first sealing joints 120 enable multi-point detection and air extraction, while mating terminals 125 ensure stable wire connections, solving the problems of insufficient interfaces and uneven detection in existing solutions.

[0072] Reference Figure 8 As shown, in one embodiment, the outer wall of the first outer shell 110 is provided with a second sealing joint 130. The second sealing joint 130 may be made of 316L stainless steel and has the same structure as the first sealing joint 120. The second sealing joint 130 includes a second cylinder 131 and a second sealing plug 132. The outer end of the second cylinder 131 is provided with a third screw hole 133 (M10×1) for screwing the exhaust pipe 600 or the second sealing plug 132. The inner end is provided with a fourth screw hole 134 (M8×1) for connecting to the outlet end of the heater 410 of the inert exhaust module 400 through a silicone hose. A fluororubber sealing ring (8mm in diameter and 2mm in thickness) is provided at the screw connection.

[0073] When the oxygen content is 0.15% (others are normal), the control system module 200 sends a second control signal, and the inert gas is injected into the tank through the fourth screw hole 134 → the second sealing joint 130 → the exhaust pipe 600. The flow valve 420 controls the opening to 50% and the flow rate to 0.75L / min. If the humidity is 6%RH at the same time, the system sends a third control signal, and the exhaust gas suction module 700 draws in the gas to form a gas circulation.

[0074] The second sealing joint 130 is designed for mass production, and the sealing ring ensures vacuum performance, improves gas passage, and solves the problem of poor sealing in existing pipeline connections.

[0075] In one embodiment, a heating and insulation layer (made of silicone heating sheet, power 30W, thickness 2mm) is attached to the inner wall of the first outer shell 110, covering the side peripheral wall of the first outer shell 110 and the bottom of the lower shell. The heating and insulation layer is electrically connected to the control system module 200 through a relay and is under the unified control of the system. When the temperature inside the tank is lower than 15°C (lower than the lower threshold limit of 5°C), the control system module 200 controls the relay to close, and the heating and insulation layer starts heating to maintain the internal temperature of the sealed shell 100 at 20-22°C, so as to avoid the performance degradation of various electronic modules (such as lithium battery and sensor) due to low temperature.

[0076] In one embodiment, a temperature sensor (DS18B20 type, accuracy ±0.5℃) is added to the inner wall of the first outer shell 110 to specifically monitor the internal temperature of the sealed shell 100; when the internal temperature rises to 22℃, the control system module 200 controls the relay to disconnect, and the heating insulation layer stops heating; if the internal temperature drops to 18℃, the relay is closed again to re-heat, forming a closed-loop temperature control.

[0077] In one embodiment, when the temperature inside the tank is 18°C ​​(2°C below the lower threshold) and the external ambient temperature is -5°C (low temperature environment), the heating insulation layer and the heater 410 work together: the heating insulation layer maintains the temperature of the electronic module inside the shell, and the heater 410 heats the inert gas to 45°C and injects it into the tank, quickly raising the temperature inside the tank to 20°C. At the same time, the exhaust gas intake module 700 extracts humid air, achieving a triple effect of "heat preservation + temperature control + dehumidification".

[0078] By heating the insulation layer, the performance degradation of electronic modules in low-temperature environments is solved. The coordinated control with the heater further improves the efficiency of temperature regulation inside the tank, making it suitable for application scenarios in cold regions or low-temperature storage workshops.

[0079] Reference Figure 6 As shown, in one embodiment, the first outer shell 110 has three trays 140 arranged from top to bottom. The trays 140 can be made of 316L stainless steel, and can be circular discs with a diameter of 80mm and a thickness of 3mm. There are four 5mm diameter weight-reducing holes on the surface. The distance between the upper and middle trays is 50mm, and the distance between the middle and lower trays is 40mm. The upper tray 140 fixes the control system module 200 (center) and the vibration alarm mechanism 300 (edge). The middle tray 140 fixes the exhaust gas intake module 700 (center). The lower tray 140 fixes the inertial exhaust module 400 (center) to avoid module interference.

[0080] In one embodiment, each tray 140 has four locking members 141 on its outer edge. The locking members 141 can be arc-shaped protrusions with a height of 5mm and an arc of 60°. The inner wall of the first outer shell 110 has three layers of locking members 111. The locking members 111 can be arc-shaped slots with a depth of 5mm and an arc of 60°. The tray can be locked and fixed by rotating it 30° clockwise, thus achieving quick assembly and disassembly.

[0081] In one embodiment, when the temperature is 26°C and the oxygen content is 0.14% (other parameters are normal), the control system module 200 simultaneously sends the first, second, and third control signals, and each module operates stably on the pallet without vibration interference; if the temperature is 19°C, the humidity is 6%RH, and the air pressure is 1.2× The system sends an additional fourth control signal, and heater 410 heats the heater to 45°C.

[0082] Reference Figure 6 As shown, in one embodiment, a first magnetic ring 150 is provided on the inner wall of the top of the first outer shell 110. The first magnetic ring 150 may be N35 neodymium iron boron. The first magnetic ring 150 may adsorb the second magnetic ring 860 of the vacuum powder storage tank and / or the external alarm device 800, thereby enhancing the overall integrity of the equipment.

[0083] The lightweight design and snap-fit ​​structure of the tray 140 enable orderly module installation and rapid maintenance, while the magnetic ring enhances the compatibility with external devices, solving the problems of chaotic module layout and inconvenient disassembly and assembly in existing solutions.

[0084] In one embodiment, to address the potential electrostatic risks associated with TC4 powder storage, the first housing 110 is made of an antistatic material: the 316L stainless steel surface of the first housing 110 is coated with an antistatic coating (10 μm thick, surface resistivity 10 Ω·cm). 6 -10 9 Ω).

[0085] In one embodiment, all electronic modules (such as control system module 200 and power supply module 900) inside the sealed housing 100 use explosion-proof terminals (model EXDIICT6), and the wires are made of flame-retardant polyvinyl chloride insulated wire (flame retardant grade V0). The spacing between modules is ≥10mm to prevent the generation of electric sparks. When the oxygen content in the tank accidentally rises to 8% (far exceeding the safety threshold), the control system module 200 immediately cuts off the power supply to all modules except the alarm module, leaving only the vibration alarm mechanism 300 and the external alarm device 800 to work, so as to avoid safety accidents caused by electric sparks.

[0086] In one embodiment, the vacuum powder storage tank and the sealed shell 100 are connected by a grounding wire (the grounding wire is made of copper core with a cross-sectional area of ​​2.5 mm²). One end of the grounding wire is connected to the grounding terminal of the first shell 110, and the other end is connected to the grounding electrode of the powder storage tank. The grounding resistance is ≤4Ω, so that any static electricity that may be generated can be conducted to the ground in a timely manner. The grounding resistance is periodically detected by the control system module 200 (once every 7 days). If the grounding resistance is >4Ω, the message "Grounding resistance abnormal (5.2Ω), grounding wire connection needs to be checked" is pushed.

[0087] By using antistatic materials, explosion-proof components, and grounding design, the safety hazards caused by the lack of explosion-proof measures in existing solutions are solved, and the explosion-proof safety requirements for medical-grade powder storage are met, reducing the risks caused by static electricity and electric sparks.

[0088] Reference Figure 6 As shown, in one embodiment, the top of the first outer shell 110 has a first through hole 112. The first through hole 112 can be a circular through hole with a diameter of 20mm and a 45° chamfered edge. The first through hole 112 is fitted with a first elastic pad 113. The first elastic pad 113 can be made of silicone material with a diameter of 20mm and a thickness of 5mm. The vibration alarm mechanism 300 includes an elastic mounting platform 310 and a vibrator 320, which can be a VB-10 type eccentric wheel vibrator.

[0089] The flexible mounting platform 310 includes a mounting plate 311, a limiting rod 312, a first spring 313, and a bearing plate 314. The mounting plate 311 can be a square plate with dimensions of 60mm×60mm×3mm. The limiting rod 312 is a cylindrical rod with a diameter of 8mm and a length of 30mm. The first spring 313 can be a piano wire with a wire diameter of 1mm and an outer diameter of 6mm. The bearing plate 314 can be a square plate with dimensions of 50mm×50mm×3mm. Mounting plate 311 is fixed to upper support plate 140, limiting rod 312 passes through limiting hole of bearing plate 314, first spring 313 is sleeved on limiting rod to provide upward elastic force, bearing plate 314 is used to fix vibrator 320.

[0090] In one embodiment, the vibrator 320 has a vibration transmission rod (15mm in diameter and 10mm in length) at its top end, which abuts against the clearance hole of the first elastic pad 113. The outer side of the first elastic pad abuts against the inner wall of the tank, forming a transmission path of "vibrator-transmission rod-elastic pad-tank".

[0091] In one embodiment, when all parameters equal a threshold (temperature 20°C, humidity 5%RH, oxygen content 0.13%, air pressure)... If the oxygen content is 0.16% (significantly exceeding the threshold), the vibrator generates a 5Hz high-frequency vibration, and the transmission rod amplifies the vibration through the first elastic pad to ensure accurate detection by the external alarm device 800.

[0092] The flexible mounting platform 310 avoids vibration interference with other modules, and the first elastic pad enhances transmission efficiency, solving the problems of weak vibration and easy omission of alarm signals in existing solutions.

[0093] In one embodiment, the vibration sensor 830 (SW-420 ball switch sensor) of the external alarm device 800 is also equipped with a signal filtering unit, which can filter out interference signals from slight vibrations of the tank (such as environmental vibration ≤1Hz). Only when the vibration frequency is ≥1Hz and the duration is ≥2 seconds will a valid high-level signal be output to avoid false alarms. The signal filtering unit is implemented by an RC filter circuit (resistor 10kΩ, capacitor 0.1μF), which is connected in series with the vibration sensor 830 and then connected to the signal input terminal of the Bluetooth communication module 850.

[0094] In one embodiment, the top of the upper housing of the second housing 810 is also provided with a status indicator light (LED light bead, red and green dual color), with the red light corresponding to the abnormal state and the green light corresponding to the normal state; when the Bluetooth communication module 850 receives an abnormal signal from the vibration sensor 830, the red light flashes at a frequency of 1Hz, and at the same time pushes an alarm message to the APP; when the parameters return to normal, the vibration sensor 830 outputs a low level, the green light stays on, and the APP pushes a "returned to normal" message.

[0095] In one embodiment, the second battery 840 is also connected to a power indicator light (LED light bead, blue). When the power is ≥50%, the blue light is always on; when the power is 20%≤ and <50%, the blue light flashes at a frequency of 2Hz; when the power is <20%, the blue light flashes at a frequency of 5Hz. At the same time, the Bluetooth communication module 850 pushes the message "External alarm device low power, please charge" to avoid alarm failure due to insufficient power.

[0096] In one embodiment, the actual parameters inside the vacuum powder storage tank are: temperature 18°C ​​(threshold 20-25°C), humidity 7%RH (threshold ≤5%RH), oxygen content 0.12% (threshold ≤0.13%), and air pressure... (threshold) - When the temperature, humidity, and air pressure all exceed the threshold, the vibration alarm mechanism 300 inside the tank generates a 4Hz vibration; after the vibration sensor 830 of the external alarm device 800 captures the vibration and confirms its validity through the filtering unit, the red light flashes at 1Hz, and the Bluetooth module pushes information ("Temperature 18℃, humidity 7%RH, air pressure 1.3×10−4pa abnormal, exhaust gas intake and inert gas heating have been started"); if the external alarm device's battery is at 15% at this time, the blue light flashes at 5Hz, and a low battery information is pushed simultaneously.

[0097] In one embodiment, when only the gas pressure inside the tank exceeds a threshold ( The vibration alarm mechanism 300 generates a 2Hz vibration, and the external alarm device 800 flashes a red light at 1Hz, pushing a "pressure" signal. An error has occurred; exhaust gas intake has been activated. The message will appear when the air pressure returns to normal. When the green light stays on, a recovery message is pushed to the system.

[0098] The signal filtering unit avoids false alarms, and the status indicator and power indicator intuitively display the equipment status, further improving the functionality of the external alarm device and solving the problems of false alarms and unintuitive status in existing solutions, ensuring accurate and reliable transmission of alarm information.

[0099] In one embodiment, when two detection components 500 (corresponding to two first sealing joints 120) are provided on the outer wall of the first outer shell 110, they are respectively deployed in the top area (near the tank opening) and the bottom area (near the powder surface) of the vacuum powder storage tank; the two detection components 500 synchronously collect parameters, and the collected data is transmitted to the data storage unit of the control system module 200 in real time. The system compares and analyzes the two sets of parameters: if the oxygen content at the top is 0.14% and the oxygen content at the bottom is 0.12%, the higher value (0.14%) is used as the judgment criterion to trigger the inert exhaust module 400; if the humidity at the top is 4%RH and the humidity at the bottom is 6%RH, the higher value (6%RH) is used to trigger the exhaust gas intake module 700.

[0100] In one embodiment, when the difference between two sets of parameters is greater than or equal to a preset deviation value (e.g., a temperature difference of ≥2℃, i.e., 25℃ at the top and 22℃ at the bottom), the control system module 200 sends a special frequency vibration (3Hz, lasting for 3 minutes) to the vibration alarm mechanism 300, and at the same time pushes an APP message ("Uneven temperature distribution inside the tank, 25℃ at the top and 22℃ at the bottom, a difference of 3℃, ventilation of the powder storage tank needs to be checked"), reminding staff to check for abnormalities in the tank environment.

[0101] In one embodiment, the control system module 200 can also compare the historical data of the same detection component 500. If a parameter (such as humidity) increases by ≥2%RH (from 3%RH to 5%RH) within 1 hour, even if it does not exceed the threshold (≤5%RH), a warning signal is sent (the vibration alarm mechanism 300 generates a 1Hz vibration for 1 minute) and pushes the information "humidity rises rapidly (3%RH→5%RH), attention should be paid to the storage environment" to achieve early prediction.

[0102] The collaboration and data comparison analysis of multiple detection components solve the problem that single-point detection in existing solutions cannot reflect the differences in the distribution of the environment inside the tank. By comparing historical data with real-time data, anomalies can be predicted in advance, improving the precision of environmental management.

[0103] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0104] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage, comprising an internal device installed inside a vacuum powder storage tank, characterized in that: The equipment inside the tank includes a sealed housing (100), which integrates a control system module (200), a vibration alarm mechanism (300), and an inert exhaust module (400). The sealed housing (100) is provided with a detection component (500) and an exhaust pipe (600) outside the sealed housing (100). The detection component (500) is used to collect the temperature, humidity, oxygen content and air pressure parameters inside the vacuum powder storage tank in real time and transmit them to the control system module (200); when any one of the temperature, humidity, oxygen content and air pressure parameters exceeds the corresponding preset threshold, the control system module (200) is used to send a first control signal to the vibration alarm mechanism (300); when the oxygen content exceeds the corresponding preset threshold, the control system module (200) is used to simultaneously send a second control signal to the inert exhaust module (400); The vibration alarm mechanism (300) is used to respond to the first control signal, generate a preset frequency vibration and transmit it to the sealed housing (100) and the vacuum powder storage tank body to realize the in-tank alarm; the inert exhaust module (400) is used to respond to the second control signal and inject inert gas into the designated position through the exhaust pipe (600) to suppress the oxidation of TC4 powder.

2. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 1, characterized in that: The sealed housing (100) is also provided with an exhaust gas intake module (700), and the outer wall of the sealed housing (100) is provided with an intake pipe that communicates with the exhaust gas intake module (700); When any one of the parameters of temperature, humidity, oxygen content, or air pressure exceeds the corresponding preset threshold, the control system module (200) sends a third control signal to the exhaust gas suction module (700); the exhaust gas suction module (700) responds to the third control signal and extracts air from the detection position in the vacuum powder storage tank through the suction pipeline.

3. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 2, characterized in that: The inert gas exhaust module (400) includes a heater (410) for heating inert gas. When the humidity inside the vacuum powder storage tank is higher than the corresponding preset threshold and / or the temperature is lower than the corresponding preset threshold, the control system module (200) is used to send a fourth control signal to the heater (410); The heater (410) is used to heat the inert gas in response to the fourth control signal, so that the high-temperature inert gas is injected into the can to increase the powder temperature and reduce the powder humidity.

4. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 3, characterized in that: It also includes an external alarm device (800) installed outside the vacuum powder storage tank. The external alarm device (800) is used to detect the vibration signal of the vacuum powder storage tank body and push alarm information to the external mobile terminal when the vibration signal is detected.

5. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 2, characterized in that: The detection assembly (500) includes a first metal flexible tube (510), a sealing cover (520), a temperature and humidity probe (530), an oxygen content probe (540), and a pressure probe (550). One end of the first metal hose (510) is sealed to the sealing housing (100), and the other end is fixedly connected to the sealing cover (520). An air vent (521) is provided on the side wall of the sealing cover (520). The temperature and humidity probe (530), the oxygen content probe (540), and the air pressure probe (550) are all fixed inside the sealing cover (520), and the wires of the three are passed through the first metal flexible tube (510) and electrically connected to the control system module (200). The detection component (500) is integrated with the air intake pipeline. The air intake end of the exhaust gas intake module (700) is connected to the inside of the first metal hose (510) and the air around the sealed cover (520) is drawn through the first metal hose (510).

6. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 5, characterized in that: The sealing housing (100) includes a first outer shell (110), and the outer wall of the first outer shell (110) is provided with a first sealing joint (120); the first sealing joint (120) includes a first cylindrical body (121) and a first sealing plug (122), one end of the first cylindrical body (121) is provided with a first screw hole (123), and the other end is provided with a second screw hole (124) and three mating terminals (125); The first screw hole (123) is screwed and sealed to the first sealing plug (122) or the first metal hose (510); the second screw hole (124) is sealed and connected to the suction end of the exhaust gas suction module (700); The wires of the temperature and humidity probe (530), the oxygen content probe (540), and the air pressure probe (550) are electrically connected to the first end of the three docking terminals (125), and the second end of the three docking terminals (125) is electrically connected to the control system module (200) through the wires.

7. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 6, characterized in that: The outer wall of the first outer shell (110) is also provided with a second sealing joint (130). The second sealing joint (130) includes a second cylinder (131) and a second sealing plug (132). One end of the second cylinder (131) is provided with a third screw hole (133), and the other end is provided with a fourth screw hole (134). The third screw hole (133) is sealed to the second sealing plug (132) or the exhaust pipe (600); the fourth screw hole (134) is sealed to the exhaust end of the inert exhaust module (400) through a connecting pipe.

8. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 6, characterized in that: The first outer casing (110) has three trays (140) spaced from top to bottom. The control system module (200) and the vibration alarm mechanism (300) are mounted on the upper tray (140), the exhaust gas intake module (700) is fixed on the middle tray (140), and the inert exhaust module (400) is fixed on the lower tray (140). Each tray (140) has a plurality of snap-fit ​​pieces (141) evenly distributed along the circumferential direction on its outer edge. The inner wall of the first outer shell (110) is provided with three layers of snap-fit ​​pieces (111). Multiple snap-fit ​​pieces (111) in the same layer are distributed along the circumferential direction of the inner wall. The tray (140) is snapped into the corresponding layer of snap-fit ​​pieces (111) through the snap-fit ​​pieces (141).

9. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 8, characterized in that: The first outer shell (110) has a first through hole (112) at its top end, and a first elastic pad (113) is fixedly disposed inside the first through hole (112). The vibration alarm mechanism (300) includes an elastic mounting platform (310) and a vibrator (320). The elastic mounting platform (310) is fixed to the upper support plate (140) and faces the first elastic pad (113). The vibrator (320) is fixed on the elastic mounting platform (310). The top of the vibrator (320) abuts against the first elastic pad (113), and the outer side of the first elastic pad (113) abuts against the inner wall of the vacuum powder storage tank, forming a vibration transmission path.

10. The TC4 powder moisture-proof and oxidation-proof monitoring device based on temperature, humidity and oxygen content linkage according to claim 4, characterized in that: The external alarm device (800) includes a second housing (810), an elastic push rod (820) and a vibration sensor (830). The second housing (810) has a second through hole (811) at the bottom end, and a second elastic pad (812) is fixedly installed inside the second through hole (811). The elastic push rod (820) is fixed to the inner wall of the bottom end of the second housing (810), and its telescopic end faces the second elastic pad (812). The vibration sensor (830) is fixed to the telescopic end of the elastic push rod (820). The vibration sensor (830) abuts against the outer wall of the vacuum powder storage tank through the second elastic pad (812) to detect the tank vibration signal.

Images