37results about How to "Ensure safe application" patented technology

The invention discloses an internal short-circuit detection method of a power battery. The internal short-circuit detection method comprises the following steps: detecting whether lowest voltage of the battery is lower than the set value and lasts for the preset time or not when a vehicle runs again or is charged, if so, judging the existence of short circuit, and performing maintenance operation on the battery through a prompt of a BMS (battery management system); identifying the difference of the battery in the static state through the BMS when the battery is arranged at the discharge tail end, if the difference in the capacity of the battery is too great, exceeds the set value and lasts for the preset time, judging the existence of the short circuit in the battery, emitting an alarm through the BMS and reminding of performing the maintenance operation on the battery; and recording the number of times of achieving cutoff voltage of the battery in the BMS, when the difference in the number of times of charge cutoff or discharge cutoff of the battery is larger than the set value, judging the existence of the short circuit in the battery, emitting the alarm through the BMS and reminding of performing the maintenance operation on the battery. According to the internal short-circuit detection method disclosed by the invention, the internal short circuit of the battery can be identified through a variety of means, and the internal short-circuit situation of the battery can be identified to the greatest extent by combining with a statistical method on the basis of long-term operation data.

The embodiment of the invention discloses an information processing method and device, and a computer readable storage medium applied to a smart home system. The method comprises the following steps:collecting biological feature information and current motion trail information of a to-be-identified object when detecting the to-be-identified object; determining identity information of the to-be-identified object based on the biological feature information; and realizing a first function based on the identity information, the current motion trail information and the preset function realizationpolicy, wherein the preset function realization policy is used for representing a corresponding relation between the motion state of the to-be-identified object with successfully verified identity information and the preset function, and the first function is at least one in the preset function.

The invention discloses an internal short-circuit detection method of a power battery. The internal short-circuit detection method comprises the following steps: detecting whether lowest voltage of the battery is lower than the set value and lasts for the preset time or not when a vehicle runs again or is charged, if so, judging the existence of short circuit, and performing maintenance operation on the battery through a prompt of a BMS (battery management system); identifying the difference of the battery in the static state through the BMS when the battery is arranged at the discharge tail end, if the difference in the capacity of the battery is too great, exceeds the set value and lasts for the preset time, judging the existence of the short circuit in the battery, emitting an alarm through the BMS and reminding of performing the maintenance operation on the battery; and recording the number of times of achieving cutoff voltage of the battery in the BMS, when the difference in the number of times of charge cutoff or discharge cutoff of the battery is larger than the set value, judging the existence of the short circuit in the battery, emitting the alarm through the BMS and reminding of performing the maintenance operation on the battery. According to the internal short-circuit detection method disclosed by the invention, the internal short circuit of the battery can be identified through a variety of means, and the internal short-circuit situation of the battery can be identified to the greatest extent by combining with a statistical method on the basis of long-term operation data.

The invention is suitable for the field of battery charging, and provides a battery charging system, method and device, computer equipment and a storage medium. The battery charging system comprises apower supply adaption connector, a power supply pre-regulation module, a charger module and a controller, wherein the power supply adaption connector provides power supply input for the battery charging system; the power supply pre-regulation module is used for regulating voltage output by the power supply adaption connector to an appointed range, and outputting the voltage to the charger module;the charger module is used for charging a battery pack to be charged; and the controller controls the working mode of the power supply pre-regulation module to guarantee that the output voltage of the charger module is matched with charging voltage required by the battery pack to be charged. By use of the embodiment of the invention, the charging voltage and charging current required by an intelligent lithium battery pack are obtained to regulate the output voltage of the charger in real time, the intelligent lithium battery pack is more convenient in use, cost is greatly lowered, the batterycharging system is accurate and efficient in control, the safe application of a lithium ion battery is guaranteed, and the safety risk of the application of the lithium ion battery is lowered.

The invention provides a container energy storage control system. The container energy storage control system comprises a container, an energy storage battery group arranged at the internal part of the container, a BMS battery management system, a micro-control unit, and an energy storage bidirectional conversion unit, the BMS battery management system is connected with the energy storage battery group, the BMS battery management system is connected with an EMS management unit, the energy storage battery group is connected with the energy storage bidirectional conversion unit, the EMS management unit and the energy storage bidirectional conversion unit are connected with the micro-control unit via a bus, and the bus is provided with a network communication interface. According to the container energy storage control system, lithium ferrous phosphate batteries are employed, the battery storage capacity is high, and the battery energy conversion efficiency reaches 96%; the dynamic balanced battery management technology is employed, battery maintenance can be rapidly and automatically accomplished, and various application occasion requirements are met; and an omnibearing and multi-layered battery protection strategy and fault isolation measures are provided so that the safety application operation of the energy storage system can be more convenient.

The invention discloses a high-integration crimping type packaging power module with an embedded clamp. The high-integration crimping type packaging power module comprises a positive cooling fin, a direct-current positive copper bar, an alternating-current output copper bar, a direct-current negative copper bar and a negative cooling fin which are sequentially arranged from top to bottom, whereinsemiconductor chip units are symmetrically installed on the two sides of the alternating-current output copper bar, threaded holes penetrating through the crimping type module are evenly distributed in the peripheries of the semiconductor chip units, and through fastening by insulating double-head screws, external threads on the insulating double-head screws are meshed with internal threads of thethreaded holes to generate a crimping force. The embedded clamp is adopted to realize module crimping, and the copper bars and the radiator are used as components of the module, so that high power density and high integration level are realized; compared with a traditional crimping type packaging power module, the crimping type packaging power module in the technical scheme has the advantages that due to the fact that the design of the clamp is optimized, the design cost is reduced, the manufacturing process is simplified, and the crimping type packaging power module is used for achieving a high-power-density rectifier.

The invention discloses a magnetic black phosphorus microbubble and the application of the magnetic black phosphorus microbubble in preparation of an ultrasonic diagnostic reagent and a medicine for treating breast cancer. A preparation method of the magnetic black phosphorus microbubble comprises the following steps: adding reaction raw materials into a solvent for dissolving; wherein the reaction raw materials comprise distearoyl phosphatidylcholine, distearoyl phosphatidylethanolamine-polyethylene glycol, distearoyl phosphatidylethanolamine-polyethylene glycol-biotin and stearic acid modified polyethyleneimine, the stearic acid modified polyethyleneimine is obtained by grafting stearic acid on low-molecular-weight polyethyleneimine, volatilizing the solvent to form a film from the reaction raw material, adding a biological buffer reagent, heating at 50-70 DEG C to form phospholipid, oscillating in a perfluoropropane atmosphere to prepare biotinylated cationic microbubbles, adding black phosphorus nanosheets for incubation, and then adding streptavidin magnetic beads. The prepared magnetic black phosphorus microbubble can carry black phosphorus in an active targeting manner, and has the effects of ultrasonic diagnosis and tumor treatment.

The invention discloses a multistage water cushion rotational flow vertical shaft flood discharging tunnel suitable for a high water head. The multistage water cushion rotational flow vertical shaft flood discharging tunnel comprises an upper horizontal section, a volute chamber section, a contraction section, a vertical shaft section and a lower horizontal section. An energy dissipation water cushion device is arranged at the position of the vertical shaft section with the water flow speed of 30-35m / s and formed by the contraction section, a protruded expanded ring plate and a straight drum section. The inner ring edge of the protruded expanded ring plate is connected with the lower end of the contraction section, the outer ring edge is connected with the upper end of the straight drum section, vent holes communicated with a blind area and outside atmosphere are arranged at the position of the water flow blind area formed by connecting the straight drum section with the protruded expanded ring plate so that air can be aerated into water flow, and the water flow can flow through the contraction section to be annularly contracted to solid water flow due to the inner diameter of the lower end of the contraction section so as to form a water cushion on the contraction section. The rotational flow vertical shaft flood discharging tunnel is suitable for high water head hydropower engineering and can greatly improve energy dissipation efficiency, vertical shaft cavitation damage can be effectively avoided, energy dissipation pressure of the bottom water cushion can be reduced simultaneously, and bottom plate damage is avoided.

The invention discloses a battery clip safe management system of an automotive emergency starting power source. The battery clip safe management system of the automotive emergency starting power source comprises a controller and a battery clip system, wherein the controller is connected with the battery clip system to obtain and control the executing state of the battery clip system; the battery clip system comprises a battery clip state identification unit and a controllable switch unit, the battery clip state identification unit identifies and feeds the current state of a battery clip to the controller, and the controllable switch unit receives the control signals of the controller to connect or disconnect circuits. Therefore, the battery clip safe management system of the automotive emergency starting power source can rapidly and precisely identifies the possible dangerous situations of emergency starting power source battery clips such as mistaken clipping of positive and negative electrodes, short circuits, high clip voltage, low clip voltage and automotive battery vacancy, achieves two-stage protection, and can ensure safe application even under misoperation of users.

The invention discloses light building exterior wall fireproof and heat insulating material prepared by slag wool. The material is characterized by comprising the following components by mass percent: 30 to 60 percent of slag wool, 15 to 30 percent of desulfurized gypsum, 15 to 30 percent of fly ash, and 10 to 20 percent of No. 425 cement. The preparation method comprises the steps that the slag wool and water are mixed in mass proportion of 1:1 and stirred into slag wool slurry; the desulfurized gypsum, the fly ash and the No. 425 cement are mixed according to the mass ratio and put into a proportioning bin to be mixed, proportioned and stirred, so as to be prepared into raw material slurry; the raw material slurry is fed onto a grid type chain conveyer to be molded, so as to be manufactured into wet formed board; and the wet formed board is cut off, dried, cut and shaped, and then the light building exterior wall fireproof and heat insulating material prepared by the slag wool is obtained. The material has the advantages that the problem of poor water absorbance of a slag wool flat plate is solved, the tensile and compression strength is improved, and the phenomena of shrinkage and cracking are avoided. The material integrates light weight, fire resistance, heat insulation and moisture protection, and belongs to novel materials for building walls.

The invention provides an induction cooker temperature measurement system and an induction cooker comprising the same. The induction cooker comprises an insulating upper cover which is configured to be fixed at an opening position of a panel, is provided with a concave second circular ring thereon and is provided with a hole in the middle, a sealing ring which is embedded in the second circular ring of the insulating upper cover and is used for sealing between the panel and the insulating upper cover, an inner core sensor which is configured to freely stretch out and draw back from the insulating cylindrical surrounding wall of the insulating upper cover, an insulating waterproof drainage support of the insulating panel which is connected with the insulating upper cover through buckles andis internally equipped with the inner core sensor, and an anti-leakage sealing ring and a spring which are fixed on the insulating cylinder of the inner core sensor. According to the structure of theinduction cooker temperature measurement system, the accurate temperature measurement technology is achieved, the reaction speed is high, the sensitivity is high, and the accuracy is high.

The invention provides a safety application device for computer informatization, which includes a computer mainframe, a heat dissipation base, a cooling liquid coil, a waterproof inner layer, a circulating water pump, a heat dissipation fan, an inner mesh surface, an outer mesh surface, an adsorption mesh surface, an installation layer and Multiple pieces of semiconductor cooling chips; the waterproof inner layer is set on the inner wall of the heat dissipation base, and the computer host sits in the heat dissipation base and is in contact with the waterproof inner layer; the refrigerant coil is placed in the heat dissipation base, and the circulating water pump is set on the rear end surface of the heat dissipation base The upper part is connected with the refrigerant coil; the cooling fan is set in the main computer, the inner net cover is covered on the cooling fan, the installation layer is set on the outer end surface of the inner net surface, and multiple semiconductor cooling chips are installed in the installation layer; the adsorption net The surface is arranged on the outer end surface of the installation layer, and the outer mesh surface is arranged on the outer end surface of the adsorption mesh surface. The invention can dissipate heat, cool the air, prevent dust and prevent moisture for the computer mainframe, which is beneficial to the long-term continuous and high-efficiency operation of the computer mainframe and ensures the safe application of the computer.

The invention relates to a thermal analysis device which comprises the components of a single-chip microcomputer that is connected with a temperature sensor, a pressure sensor and a gas sensor and is used for analyzing and processing received data; an operation display screen which is connected with the single-chip microcomputer and is used for operating, setting and displaying thermal analysis parameters; a gas discharging valve which is connected with the single-chip microcomputer and is used for discharging inner pressure of an analysis tank; a wireless RF transceiver module which is connected with the single-chip microcomputer and is used for transmitting and receiving a wireless network signal; external equipment which is wirelessly connected with the wireless RF transceiver module through a GPRS wireless network and is used for remote controlling and inspection; a first cyclone dust collector which is connected with the single-chip microcomputer through a driving controller and is used for eliminating dust that is generated by a spiral feeder; and a second cyclone dust collector which is connected with the single-chip microcomputer through the driving controller and is used for eliminating the dust that is generated by the spiral feeder. The thermal analysis device has advantages of high intelligent degree, high automatic degree, high safety performance and clean working environment.

The invention discloses a C-V2X-based equipment communication performance test system and a test method thereof, and belongs to the technical field of C-V2X communication test. Comprising a business micro-service, a C-V2X device end, an EMQ server, a time sequence database, a front-end micro-service and a WEB front end, the business micro-service is connected with the C-V2X device end through the EMQ server, the WEB front end is connected with the business micro-service through the front-end micro-service, and the business micro-service and the EMQ server are both connected with the time sequence database. Compared with the prior art, the test system has the beneficial effects that firstly, the test system can test the communication performance between the C-V2X terminal equipment, and can test the communication performance before mass production and use of the C-V2X terminal equipment, so that the low-delay and high-reliability communication performance of the C-V2X terminal equipment is ensured, and the safe application of the C-V2X technology is effectively ensured; and secondly, the test indexes of the test system are rich, and various test indexes can be tested.

The invention provides a temperature measuring system for an induction cooker and an induction cooker including the same. Wherein, the induction cooker includes: an insulating upper cover configured to be fixed at the opening position of a panel, the upper surface of which includes a concave second ring with a hole in the middle; a sealing ring is embedded in the second ring of the insulating upper cover, It is used for sealing between the panel and the insulating upper cover; the inner core sensor is configured to be freely retractable from the insulating cylindrical enclosure of the insulating upper cover; the insulating waterproof and draining bracket of the insulating panel is connected to the insulating upper cover through a buckle, and the inner The inner core sensor is provided; and the leak-proof sealing ring and the spring are fixed on the insulating cylinder of the inner core sensor. The structure of the induction cooker temperature measurement system of the present invention realizes accurate temperature measurement technology, has fast response speed, high sensitivity and high accuracy.

The invention discloses a property characterizing method of a power station boiler stainless steel elbow. During a power station boiler production process, elbow technology is applied in a large scaleto cold-bending small-diameter steel pipes, the shape, the size, the performance and the like of the cold-bent steel pipes can change, and the elbow parts of the cold-bent steel pipes turn to be theweak parts of the steel pipes, particularly of austenitic stainless steel. According to the power station boiler stainless steel elbow property characterizing method, a Leeb hardness tester is used for measuring the hardness differences of different positions of elbows to characterize the properties of the elbows, and measurement results can be converted into common Brinell hardness values, so that the elbow properties can be characterized under the condition of not damaging elbow bodies, and the elbows requiring solution treatment can be screened out to ensure safe application of power station boiler stainless steel elbows. The property characterizing method of the power station boiler stainless steel elbow can be applied to property detection of stainless steel elbows.

The invention belongs to the technical field of door lock alarm, and discloses a simple door lock alarm reminding system and method. The method comprises the steps of: collecting image data of a dooropener by a camera; detecting a door lock state by a door lock detection component; recognizing the collected human face by a recognition program; matching the input door lock password by a matching program; determining whether face recognition and door lock matching are correct or not by a determination program; performing alarm notification by an alarm according to determination of illegal invasion; and displaying the collected image data of the door opener by a display. Through the door lock state detection module, other door lock detection mechanisms do not need to be additionally installed on a door body or a door frame, the installation cost of door lock state detection is greatly reduced, and the original use environment of a door is not affected; and alarm can be completed by the alarm module on the premise that personal safety is guaranteed.

The invention relates to a thermal analysis device which comprises the components of a single-chip microcomputer that is connected with a temperature sensor, a pressure sensor and a gas sensor and is used for analyzing and processing received data; an operation display screen which is connected with the single-chip microcomputer and is used for operating, setting and displaying thermal analysis parameters; a gas discharging valve which is connected with the single-chip microcomputer and is used for discharging inner pressure of an analysis tank; a wireless RF transceiver module which is connected with the single-chip microcomputer and is used for transmitting and receiving a wireless network signal; external equipment which is wirelessly connected with the wireless RF transceiver module through a GPRS wireless network and is used for remote controlling and inspection; a first cyclone dust collector which is connected with the single-chip microcomputer through a driving controller and is used for eliminating dust that is generated by a spiral feeder; and a second cyclone dust collector which is connected with the single-chip microcomputer through the driving controller and is used for eliminating the dust that is generated by the spiral feeder. The thermal analysis device has advantages of high intelligent degree, high automatic degree, high safety performance and clean working environment.

The invention provides an intelligent tail box fingerprint identification method and system based on a high-quality template, and relates to the field of fingerprint identification. By obtaining multiple sample fingerprint images, and then input multiple sample fingerprint images into the preset deep hash coding model to obtain the template fingerprint image, then obtain the fingerprint image to be detected, and then treat the detection fingerprint image and the template fingerprint image respectively Perform image decomposition to obtain multiple scales of fingerprint images to be detected and template fingerprint images, and then use the sharpening convolution kernel to sharpen the fingerprint images to be detected at each scale and the template fingerprint images of each scale to obtain the sharpness of each scale. Finally, compare the sharpening results of each scale, generate and generate the recognition result of the fingerprint image to be detected according to the comparison result, realize the comparison of fingerprint images at multiple scales, improve the accuracy of fingerprint recognition, and ensure the smart tail Box security applications.

The invention discloses a composite artificial bone material, comprising the following raw materials in parts by weight: 20-99 parts of high-purity spherical nanocrystalline calcium sulphate powder with the purity being greater than 99.9%, and 1-80 parts of lyophilized cell powder. A preparation method of the composite artificial bone material comprises the following steps: preparing high-purity spherical nanocrystalline calcium sulphate powder; drying stem cells or osteoblasts of mesenchymal origin at the temperature of 0 to 80 DEG C in vacuum, preserving the activity, thereby obtaining lyophilized cell powder with abundant active substances; and evenly mixing the lyophilized cell powder with calcium sulfate powder, and pressing into tablets with different sizes. According to the composite artificial bone material disclosed by the invention, safe application of a human body can be ensured by using the high-purity spherical nanocrystalline calcium sulphate powder; the activity and the degradability of bone materials can be significantly improved by using the lyophilized cell powder with abundant active substances; compared with composite living cell components, irradiation sterilization can be carried out on the basis that a lot of active osteogenesis factors and functions are reserved; and the composite artificial bone material is convenient to store and transport at room temperature for a long period of time, and can be treated and processed according to an implant material way.

The invention discloses an anti-pollution household garbage incinerator slag asphalt pavement structure. The structure comprises an asphalt surface layer (1), an upper base layer (2), a lower base layer (4) and a roadbed (6), wherein the asphalt surface layer (1), the upper base layer (2), the lower base layer (4) and the roadbed (6) form the pavement structure from top to bottom. An upper base layer geomembrane wrapping layer (3) is wrapped around the upper base layer (2), a lower base layer geomembrane wrapping layer (5) is wrapped around the lower base layer (4), a roadbed geomembrane wrapping layer (7) is wrapped around the roadbed (6), and the upper base layer (2), the lower base layer (4) and the roadbed (6) are isolated from one another and completely isolated from the external environment. According to the structure, external moisture can be prevented from permeating into the pavement structure, and pollution substances such as heavy metals and compounds thereof in the pavementstructure can also be prevented from migrating into the environment along with water, so that the structure is environment-friendly.

The invention relates to an inert gas protection method when an explosion-proof lithium battery power source is burned, and belongs to the technical field of mining lithium batteries. The technical solution is as follows: when the battery pack (10) burns and explodes, the battery pack is enclosed in an inert gas (9) filled with oxygen to reduce, eliminate or weaken the explosion intensity of the battery pack; the sealing liquid leaks in the sealed inert gas At the same time, the flame formed by the combustion and explosion of the battery pack is cooled. The beneficial effects of the invention are as follows: to ensure safe application in coal mines, use inert gas to isolate oxygen when lithium batteries catch fire and explode, reduce, eliminate or weaken the explosion intensity of battery packs, and seal liquid and flame arrester (fire arrester) to cool down the combustion flame of the battery Extinguish the flame, do not cause or induce the explosion of external explosives, meet the special requirements of mine explosion-proof equipment, and have great significance for the application of large-capacity lithium batteries in coal mines and explosive places.

The invention discloses a power grid data application method. Power grid data stored in a plurality of clients are uploaded to a blockchain for storage, whether uploading or obtaining is carried out, the behavior is protected by a related mechanism and has absolute security, and even if encountering network attacks or signal influences, the data transmission and sharing of the blockchain are not influenced. By establishing a blockchain node, federated learning is performed based on the power grid data uploaded to the blockchain to train a task model, so that the security application of the power grid data in the client can be ensured under the situation that each client uploads encrypted data; and the viewing range corresponding to each client is determined through the contribution parameters calculated based on federal learning, so that the secure sharing of the data by each client can be ensured. The invention also provides a power grid data application device and a power grid data application system, which also have the above beneficial effects.

The invention belongs to the technical field of battery recovery, and discloses an intrinsic safety treatment method for edge metal in a decommissioned battery pole piece and application. The method comprises the following steps: cutting a waste pole piece into non-powder, then placing the non-powder in an ultrasonic environment, heating in an oil bath, carrying out a hydrothermal reaction, and cooling to prepare pretreated aluminum slag; taking out the pretreated aluminum slag for filtering, and taking out and washing filter residues to obtain aluminum slag and a battery powder turbid solution; and inserting a grounding wire into the aluminum slag, and introducing an oxidizing agent for reaction to obtain the non-hydrogen-release aluminum slag. The battery powder and the aluminum foil in the waste pole piece are separated through a physical method, chemical agents do not need to be added, and the treatment cost is low. The solution obtained after hydrothermal reaction and water washing can be used as a raw material and an auxiliary material of the leachate, secondary waste water, waste gas and waste residues cannot be generated in the whole treatment process, and the treatment process is environmentally friendly.

The invention relates to a TKX-50 coating method, in particular to a 1,1'-dyhydroxy-5,5'-bistetrazole dihydroxylamine coating method, and belongs to the field of an energy-containing material. Nitroguanidine and macromolecules are matched to be used; the optimum coating on the TKX-50 is realized through process creation; the coating problem of TKX-50 explosive is effectively solved; the preparation process is simple; the operation is easy; no complicated production devices are needed; no high-temperature pressure device is used in the preparation process; the process conditions can be easily realized; used solvents and glue liquid can be repeatedly recovered and utilized; the environment-friendly requirements are met; the operation is safe and reliable; the industrial production can be realized.

The invention discloses a medical monitoring device and method based on a UHF RFID technology, and the device comprises collectors, RFID tags, and a server. The use comprises the following steps: installing the collectors; pasting corresponding RFID tags on nurses, patients and medical devices at work, and further pasting RFID tags on medicine after the medicine is dispensed in a medicine dispensing room. The nurses, the patients, the medical devices, the medicine and the like are in one-to-one correspondence with the label contents; the nurse information and the medicine information collectedby the collectors are uploaded to the server when the medicine is dispensed in the dispensing room; the data of the medicine labels, the nurse labels and the patient labels collected by the collectors in wards is uploaded to the server, and the server obtains the medicine taking time; and the collectors at garbage can acquire the medicine information and uploads the medicine information to the server. According to the invention, the nursing work of a hospital becomes convenient and easy, and the nursing condition of a patient can be objectively reflected; doctors can conveniently look up thetreatment information of the patient, monitor the treatment condition of the patient and determine the correctness of medication.

The invention provides a horizontal reaction kettle and a shaft sealing device for the horizontal reaction kettle. The shaft sealing device for the horizontal reaction kettle solves the technical problem that the shaft sealing device of the existing horizontal reaction kettle has a relatively poor sealing effect. The shaft sealing device is provided with a shaft head, wherein a shaft sleeve is fixedly arranged on the shaft head in a sleeving manner; a supporting seat is arranged outside the shaft sleeve in a sleeving manner; a sealing structure component is arranged between the shaft sleeve and the supporting seat; a bearing component is arranged at the tail end part of the shaft head and is provided with a bearing, a bearing housing and a bearing gland; the bearing is fixedly arranged atthe tail end part of the shaft head in a sleeving manner; the bearing is arranged in an airtight space formed by the bearing housing and the bearing gland in an enclosing manner; a first oil seal fora shaft is arranged between the bearing housing and the shaft sleeve in a connecting manner; a cavity is formed by the shaft sleeve, the supporting seat and the bearing housing and is sequentially provided with an annular balance cavity and an annular filler cavity from left to right; a sealing structure component of the annular balance cavity comprises a first sealing ring, a second sealing ring,a first R-shaped oil seal and a second R-shaped oil seal; and a sealing structure component of the annular filler cavity comprises a filler chamber, a filler gland and filler. The shaft sealing device can be widely applied to the technical field of reaction kettles.