33results about How to "Safe and reliable" patented technology

The invention discloses a CFB boiler flue gas denitration automatic control method and system. The control method comprises the following steps: S1, monitoring and controlling a CFB boiler by taking an operator station display as a center; s2, a nitrogen oxide emission value of a boiler tail flue in the CFB boiler is collected in real time to serve as a feedback value; s3, the feedback value is compared with a set target emission value, and the deviation value of nitric oxide at the flue gas outlet and the change rate of the deviation value are calculated; s4, constructing a fuzzy relation between the three PID parameters and the deviation and the change rate of the deviation value, and obtaining a new PID parameter; s5, the stroke of an ammonia water pump is dynamically adjusted according to the new PID parameters, and the amount of the urea solvent sprayed into the boiler is controlled; and S6, the stroke of a dilution water pump and the flow of dilution water are regulated and controlled. By means of early warning, control over spraying of the reducing agent and burdening in the boiler is achieved, it is guaranteed that the denitration system can change along with changes of the boiler operation load, and long-term, reliable and safe operation of boiler denitration is achieved.

The invention discloses a fabricated steel platform under a deepwater bare rock condition and a construction method of the fabricated steel platform. The fabricated steel platform comprises a gravel throwing and filling layer, counterweight concrete, a jacket, a top support and a steel truss. According to the platform, the weight of the jacket is increased by arranging the counterweight concrete, the stability problem of the platform in the marine environment is solved, the working procedure of constructing concrete anchor piles through a traditional jacket is avoided, meanwhile, the whole platform adopts the factory prefabrication concept, the lower structure and the upper structure are both machined and manufactured in a factory, and cost is reduced. The steel platform is transported to a construction site and assembled construction is adopted to form a formal steel platform, the offshore operation time is shortened, and the safety risk is reduced; the platform is high in construction efficiency, short in construction period and high in adaptability in deepwater sea areas with complex environments; the platform can be repeatedly used, can be used as various underwater foundation construction platforms after being simply modified, and is high in economical efficiency, wide in applicability and reliable in safety.

The present invention relates to a safety airbag for being mounted at the top of a vehicle, including: an airbag, having an inflated state and a stowed state, wherein the airbag includes a first airbag (11) and a second airbag (12) configured to be in fluid communication with each other, the first airbag (11) extending beyond the second airbag (12) in both the front and rear direction when the airbag is in the inflated state, the second airbag (12) having a recessed portion formed by a first side flank (121) and a second side flank (122) and used to accommodate an occupant head, and the safety airbag further including a guide (13, 13A, 13B, 13C) provided at a connecting position of the first airbag (11) and the second airbag (12), and the guide (13, 13A, 13B, 13C) being used to guide a gas flow of one of the first airbag (11) and the second airbag (12) towards the other. The safety airbag has a simple structure and low manufacturing costs.

The invention discloses a composite electrolyte and a lithium battery. The composite electrolyte comprises a first lithium salt and a composite solvent, wherein the composite solvent contains ethylene glycol dimethyl ether (DME) and / or 1, 3-dioxolame (DOL) and a fluorine-containing ether compound, and the molar ratio of the total of the DME and the DOL to the fluorine-containing ether compound is 1: (0.2-10); the fluorine-containing ether compound is shown as a formula R1-O-R2 in the specification; in the formula, R1 is a fluorinated alkyl group or a fluorinated alkoxy alkyl group of C1-C10, and R2 is an alkyl group or an alkoxy alkyl group of any fluorinated C1-C5. According to the composite electrolyte, the number of cycles and the charge-discharge rate of the lithium metal battery can be remarkably improved, and the performance and the safety of the battery are improved.

The utility model provides a split type extraction kettle for a traditional Chinese medicine supercritical extraction method, and belongs to the field of supercritical extraction. The problems that a traditional extraction kettle is large in dead weight, small in material strength exerting coefficient, poor in anti-fatigue performance and high in manufacturing and machining cost, and the metal machining requirement is high when integrated forming is adopted are solved. The utility model discloses a split-type composite lining structure which comprises an outer layer structure layer and a split-type composite lining structure layer, the outer layer structure layer wraps the outer side of the split-type composite lining structure layer, the split-type composite lining structure layer comprises a straight cylinder section lining and two end sockets, and the two end sockets are symmetrically arranged at the two ends of the straight cylinder section lining. The opening ends of the two end sockets are connected with the two ends of the straight cylinder section lining in a matched mode respectively. The method is mainly used for supercritical extraction of traditional Chinese medicines.

The utility model relates to a curtain wall plate technical field especially easy combination type curtain wall plate of hidden mode, the utility model adopts the technical scheme: including curtain wall plate main body cooperation board, the upper and lower sides of curtain wall plate main body cooperation board are equipped with symmetrical arc shape outside, the left and right sides of curtain wall plate main body cooperation board are equipped with one symmetry and the integrated mounting combination cooperation column respectively, the upper and lower sides of mounting combination cooperation column are equipped with the opening to the outside of combination stable connection groove of upward and downward direction with curtain wall plate main body cooperation board connection position, the end face of combination stable connection groove near curtain wall plate main body cooperation board one side position coincides with the outside end face of curtain wall plate main body cooperation board left and right direction, the utility model has the advantages that: can be carried out comprehensive steady quick combination with the sliding slot on the curtain board or mounting assembly of cooperation position, the whole installation operation is more convenient, and the precision of connection position is higher, and the firmness is better, and the cooperation position has reliable anti -loose effect.

The utility model relates to electric power infrastructure technical field discloses a kind of movable temporary cable placing rack for electric power infrastructure, including placing frame, the outside of the placing frame is fixedly connected with jacking moving mechanism, the outside of the placing frame is fixedly connected with reinforcing anti-inclination mechanism, the jacking moving mechanism includes jacking box, the outside of the jacking box is fixedly connected in the outside of the placing frame, the inside of the jacking box is fixedly connected with fixed shaft, the outside of the fixed shaft is rotatably connected with down bar, the outside of the fixed shaft is rotatably connected with driven link. In the utility model, by down bar rotation, driven link, transmission link movement are driven, to make down seat press down, drive moving wheel to extend, thereby the effect of jacking up placing frame is realized, so that cable placing rack can be conveniently lifted when needing to move, facilitate position adjustment and quick installation in electric power infrastructure site.

The invention discloses a software code protection and adjustment system and method based on a digital encryption technology, and relates to the field of program control. According to the method, disassembling operation and primary analysis are carried out on each binary code in a binary software code set, and then each basic block forming the code is determined; meanwhile, a code execution process is determined, so that subsequent control flow adjustment is facilitated, and a basis is provided for subsequent adjustment of the position of the basic block; algorithm support is provided for subsequent replacement of variables in codes, logical transformation of all function basic blocks and position transformation of all basic blocks by constructing an obfuscation algorithm set, and meanwhile, complete transformation of logic structures and positions of the codes is ensured, so that the security of the codes is ensured; the source code is protected from being tampered or copied; and finally, the converted source code is encrypted, so that the security of the code is further ensured.

The invention relates to a method for gripping a sheet metal component (1) having a plurality of spacing holders (2) which are produced in the sheet metal component (1) in a die-stamped manner and each have a mushroom head (20) with a circumferentially extending annular groove (21), wherein each spacing holder (2) is gripped by gripping means (30, 30a, 30b, 30c) of a gripping device (100) in such a way that one of the gripping means (30, 30a, 30b, 30c) respectively engages in the annular groove (21) of one of the spacing holders (2).

The utility model relates to the technical field of automobile parts, in particular to an automobile back row seat six-part folding unlocking structure which comprises a backrest, a seat, a rotating frame, a supporting frame and an unlocking assembly, and the unlocking assembly comprises a zipper box, a backrest zipper, a locking frame, a locking block, a rotating block, a seat zipper, a hoop and a lock bolt. When a user needs to turn over and fold the backrest and store the seat, the user presses a button in the zipper box, starts the backrest zipper, pulls the locking block, separates the locking block from the locking frame, unlocks the backrest, rotates and puts down the backrest, so that the backrest is folded on the seat, and drives the rotating block to rotate while rotating, so that the seat zipper is pulled, and the user can turn over and fold the backrest. When a user pulls the seat, the seat zipper acts to pull the hoop, the hoop leaves the lock bolt, the seat is unlocked, the user pulls the seat upwards to be close to one side of the rotating frame, the seat rotates around the supporting frame, then the seat is perpendicular to the supporting seat, the space of the trunk is communicated with the space of the back row in the automobile, and the space of the trunk of the automobile is enlarged.

The utility model provides a kind of exhaust pipe structure and rotatory compressor for rotatory compressor, comprising: exhaust pipe body, hole for connecting equalizing pipe is equipped on exhaust pipe body;Reinforcing structure, it is set on exhaust pipe body, reinforcing structure is used to increase the connecting length of hole and equalizing pipe.The utility model can increase the connecting length of exhaust pipe body and equalizing pipe, thereby increase the welding penetration of exhaust pipe body and equalizing pipe, guarantee welding quality, improve welding strength, thereby reduce the probability that the leakage at this welding place leads to compressor failure.

The application provides a medication guidance system and method based on knowledge graph and vector retrieval fusion, and relates to the technical field of artificial intelligence, comprising an application access layer, a service interface layer and a hybrid retrieval engine layer; the application access layer is used for receiving external demand information and transmitting the external demand information to a large model platform; the service interface layer is used for receiving a query instruction of the large model platform, transmitting the query instruction to the hybrid retrieval engine layer, and transmitting a retrieval result to the large model platform, so that the large model platform outputs the retrieval result; the hybrid retrieval engine layer is used for generating a graph database query statement and a query semantic vector according to the query instruction, performing a structured query on a graph database according to the graph database query statement, and performing semantic similarity retrieval on a vector database based on the query semantic vector, and generating a graph retrieval result and a vector retrieval result for the large model platform. Through the above medication guidance system, professional medication guidance can be realized.

The invention discloses an electric control anesthesia machine based on continuous basic flow velocity and a control method, the anesthesia machine comprises a turbine, a voice coil motor used for driving the turbine, a breathing circuit, a sensor group, a controller and a user operation interface, the breathing circuit comprises an inspiration branch, an expiration branch and a circuit connected with a patient; the controller is configured to control the voice coil motor to drive the turbine to continuously operate in the expiration stage of a patient, so that a preset basic flow rate is maintained in the breathing loop; the controller is connected with the sensor group, identifies autonomous inspiration trigger of a patient based on a monitoring signal of the sensor group, and controls the voice coil motor to drive the turbine to accelerate so as to carry out auxiliary air supply when effective trigger is identified; according to the anesthesia machine and method, a high-performance voice coil motor is adopted to directly drive a turbine, and an intelligent triggering algorithm based on net flow calculation is combined, so that maintenance of stable basic flow speed in the expiration period and millisecond-level rapid air supply response at the inspiration triggering moment are achieved.

An anchoring device (100, 200, 300) for prosthetic heart valve (400) and a prosthetic heart valve system. The prosthetic heart valve system includes an anchoring device (100, 200, 300) and a prosthetic heart valve (400). The anchoring device (100, 200, 300) includes an anchoring section (110, 210, 310) and a supporting section (120, 220, 320) that are axially connected to each other. The anchoring section (110, 210, 310) has an annular first cavity (111, 211, 311) configured to accommodate a prosthetic heart valve (400). The supporting section (120, 220, 320) is arranged on one side of the anchoring section (110, 210, 310) along the axial direction thereof. The supporting section (120, 220, 320) includes at least two elastic wires (121, 221, 321) arranged sequentially on the circumference of the anchoring section (110, 210, 310). Each elastic wire (121, 221, 321) has an end connected to the anchoring section (110, 210, 310), and a further end extending in a direction away from the anchoring section (110, 210, 310). The anchoring device (100, 200, 300) can utilize the structure of the predetermined chamber to anchor the prosthetic heart valve (400) without crossing the native valve annulus during implantation, thereby effectively preventing the occurrence of paravalvular leakage after the prosthetic heart valve (400) is implanted.

The utility model relates to golf cart technical field especially relates to a kind of mechanical parking pedal assembly for golf cart.The technical scheme used in the utility model is: including main body support parking chassis, main body support parking chassis is formed by parking bottom plate, parking side plate and spacing clamping plate, parking bottom plate and the parking side plate form the structure of L-shaped side projection, spacing clamping plate is inserted into the connecting position by parking bottom plate and the parking side plate, parking side plate is provided with the first parking screw rod and the second parking screw rod of center shaft mutual parallel, the first parking screw rod and the second parking screw rod are fixed together with the parking side plate by fastening nut.The utility model has the advantages that: the use effect of self-unlocking foot rest parking is realized, step on pedal parking, again step on, parking is released, and independent parking cable is matched, can be matched with hydraulic disc brake, realizes four-wheel hydraulic disc brake mechanical parking function.

The present application relates to the technical field of characteristic gas detection and analysis, and discloses a chemical production and transportation safety monitoring method based on big data, which comprises the following steps: first, a fluid mechanics model is established according to the geometric parameters and the liquid filling state of a container, and the intrinsic time reference is calculated; then, the characteristic gas concentration sequence is collected at a preset sampling period, the positive transition event is identified, and the waiting time sequence is formed; the time turning point parameter is obtained by fitting a double segment distribution model, and the target monitoring parameter is calculated in combination with the intrinsic time reference; the relative offset parameter of the transportation process is obtained by taking the monitoring value of the loading and standing stage as the reference; when the offset parameter continuously meets the disposal condition for a set number of times, the alarm mechanism is triggered, and the accurate early warning and safety guarantee of abnormal gas release in the transportation process are realized.

The utility model relates to the technical field of centrifugal pump discloses a high pressure stable pump, including low pressure section, high pressure section, inlet and outlet water section, transition elbow and pump shaft, low pressure section, inlet and outlet water section and high pressure section are coaxial connection in pump shaft respectively, and inlet and outlet water section is located between low pressure section and high pressure section, and low pressure section is equipped with medium inlet, and inlet and outlet water section is equipped with medium outlet, and low pressure section communicates with the one end of transition elbow through inlet and outlet water section, and the other end of transition elbow communicates with the one end of high pressure section away from inlet and outlet water section, and high pressure section communicates with medium outlet, low pressure section is equipped with first rod body, and high pressure section is equipped with second rod body, and first rod body, second rod body and the extension direction of pump shaft are same, and low pressure section is connected with inlet and outlet water section through first rod body, and high pressure section is connected with inlet and outlet water section through second rod body, the high pressure stable pump of the utility model avoids the deviation caused by assembly error, improves assembly positioning accuracy, improves assembly coaxial degree, reduces vibration and abrasion and ensures the reliable and safe operation of multistage pump.

The invention discloses a visual device and method for detecting a vehicle body offset vector. The device comprises a fixing assembly, a control assembly and a detection assembly, wherein the control assembly and the detection assembly are fixedly mounted on the fixing assembly; the fixing assembly comprises a support, and the support is fixedly connected to the ground through a base anchor. According to the invention, the problem of inaccurate positioning of the vehicle body in the prior art is solved.

This invention discloses an auxiliary conveying mechanism for cable production and its working method. The auxiliary conveying mechanism is mounted on a cooling water tank body and includes a bridge trolley and guide rails. Two guide rails are symmetrically arranged outside the side walls of the cooling water tank body and laid along its length. The bridge trolley spans the width of the cooling water tank body, and the bottom of the trolley's upright plate is slidably connected to the two guide rails. The cable end that needs to pass through the cooling water tank body is placed on the bridge trolley and pulled from one end of the extruder to the other by a traction rope. This invention reduces the difficulty of conveying heavy cables on the cooling water tank during the cable threading process, saves manpower, and avoids water immersion of the cable end.

The invention basically relates to a battery pack, comprising a cell array and a support member, wherein the cell array comprises a plurality of cells, at least one of the cells comprises a cell body and electrode terminals extending out of the cell body and configured to output a current inside the cell body, the at least one cell comprises a casing and a core located inside the casing, a supporting region is formed on the casing, and the cell is connected to the support member through the supporting region and is supported by the support member, the cell body being substantially a cuboid with a length L, 600 mm≤L≤2500 mm, a thickness D, a height H and a volume V; the length L of the cell body being greater than or equal to the height H of the cell body and the height H of the cell body being greater than or equal to the thickness D of the cell body, wherein the cell meets 0.0005mm-2≤L / V≤0.002mm-2 and 4≤L / H≤21 and 23≤L / D≤208.

This invention proposes a lightweight cross-domain authentication method for drones that integrates a reputation assessment mechanism, belonging to the field of drone communication security technology. It solves the technical problems of high resource overhead and vulnerability of the reputation assessment mechanism to attacks in traditional drone cross-domain switching authentication schemes. The technical solution includes the following steps: S1, system initialization; S2, initial authentication between the drone and the domain authentication server; S3, the domain authentication server assesses the reputation of authenticated drones within the domain; S4, the domain authentication server issues cross-domain credentials to authenticated drones within the domain; S5, the drone completes cross-domain switching authentication from the source domain authentication server to the target domain authentication server; S6, the trusted center traces and revokes the credentials of malicious drones. This invention achieves low overhead, high security, and supports malicious node tracing.

The application discloses a high-concentricity hemostatic gel plug and a preparation method thereof. In the application, a uniform hollow circular columnar skeleton is constructed through inorganic salt particle accumulation and saturated aqueous solution bridging technology, and the eccentric problem caused by the traditional curling process is fundamentally solved. The skeleton forming method utilizes the regular gap structure formed by the close arrangement of particles to provide an accurate template for the subsequent uniform filling of PEG solution. After solidification, the gel plug obtained by dissolving the inorganic salt has a high consistency in radial size, which ensures accurate matching of the channel shape when plugging the puncture channel and avoids the problem of loose plugging caused by eccentricity. Meanwhile, the entire preparation process is completed in a closed container, reducing the interference of the external environment on the forming precision, and the consistency between batches of products is significantly improved. The three-dimensional interpenetrating gap network formed in the preparation process greatly improves the blood absorption rate of the material.

The invention basically relates to a battery pack, comprising a cell array and a support member, wherein the cell array comprises a plurality of cells, at least one of the cells comprises a cell body and electrode terminals extending out of the cell body and configured to output a current inside the cell body, the at least one cell comprises a casing and a core located inside the casing, a supporting region is formed on the casing, and the cell is connected to the support member through the supporting region and is supported by the support member the cell body being substantially a cuboid with a length L, 600 mm≤L≤2500 mm, a thickness D, and a height H; the length L of the cell body being greater than or equal to the height H of the cell body and the height H of the cell body being greater than or equal to the thickness D of the cell body, wherein the cell meets 4≤L / H≤21 and 23≤L / D≤208.

This invention relates to a calibration device, specifically a calibration device suitable for a level wheel alignment measuring instrument and a portable brake performance tester. The calibration device for level wheel alignment measuring instruments and portable brake performance testers includes a base, a frame erected on the base, a rotating shaft mounted on the frame, a detection turntable connected to the rotating shaft, a drive device for driving the rotating shaft to rotate, an angle encoder mounted on the rotating shaft, and a detection display system electrically connected to the angle encoder. This invention uses a bidirectional (lateral and longitudinal) fixed detection table as the support mechanism for the measuring and testing instruments. An angle is rotated via a rotating mechanism and detected by the angle encoder and detection display system, thereby quickly and accurately calibrating the level wheel alignment measuring instrument and the portable brake performance tester.

This utility model relates to a heavy-duty double-mounted double-suspension excavator undercarriage tilting device, including a base component, a column component, a lifting component, and a clamping arm component. The base component is installed in the factory pit, the column component is installed on the equipment base, the lifting component and guide wheels are installed together on the column component, and the clamping arm component is installed on the lifting frame for clamping the undercarriage to hold the workpiece. The base component includes a base body. Through the base component, column component, lifting component, and clamping arm component, the fully automatic tilting of the excavator undercarriage is realized. It is driven by an SEW motor reducer and hydraulic cylinders, the limit switch controls the extreme stop position of the device, and the pull rope encoder controls the working stop position of the device. The entire device operates smoothly, and the device positioning is accurate and rapid. It also adopts multiple safety protection measures such as mechanical blocking and sensors, and the safety performance is reliable.

The invention relates to the field of traditional Chinese medicine, and discloses a traditional Chinese medicine composition for treating constipation after invasive mechanical ventilation, a preparation and application. The active ingredient raw materials of the traditional Chinese medicine composition comprise the following raw materials in parts by weight: 10-20 parts of raw rhubarb, 15-25 parts of fried immature bitter orange, 10-20 parts of mirabilite, 5-15 parts of coptis chinensis, 15-25 parts of radix scrophulariae, 25-35 parts of honey-fried astragalus membranaceus, 5-15 parts of ginseng and 25-35 parts of roasted radix asteris. The primordial qi tonifying, toxic material counteracting and qi supporting decoction has a good effect on improving the constipation symptom of a patient after the invasive mechanical ventilation operation, has a good effect on improving the constipation symptom of the patient after the invasive mechanical ventilation operation, promoting gastrointestinal emptying, inducing defecation, improving pulmonary ventilation and the like, and is rapid and direct in curative effect and free of toxic and side effects. Particularly, the medicine has the advantages which western medicines do not have in the aspect of quickly inducing defecation, and is safe and reliable.

The present invention discloses a fee control circuit and a fee control method for a fee control circuit breaker, comprising an A-phase outlet terminal, an L-phase outlet terminal and an N-phase outlet terminal of the fee control circuit breaker; wherein the L-phase outlet terminal is electrically connected to the N-phase outlet terminal through a power coil of an intermediate relay, and the A-phase outlet terminal is electrically connected to a fixed end of an action contact of the intermediate relay, one end of an alarm switch of an electric energy meter and one end of a power indicator light. The present invention enables an electric energy meter with a pulse output to control the opening and closing functions, and has the advantages of being safer and more reliable in case of mis-opening and mis-closing, and reducing the cost and difficulty of transformation.

This application relates to the field of power system emergency control technology, specifically to a method and system for generating rolling clearing schemes for post-disaster distribution network recovery. The method includes: acquiring real-time data of the distribution network; constructing a context feature vector for the current moment, inputting it into a pre-trained decision generation network for forward inference, and outputting a preliminary clearing decision within a rolling window; using a pre-trained physical feasibility discrimination network to perform security verification on the preliminary decision; if the confidence level is lower than a threshold, correcting it through linear projection to obtain the final clearing decision; issuing and executing the first step instruction in the final clearing decision, and then rolling the decision time to the next time step for cyclical execution. The decision generation network and the discrimination network are co-trained using a simulation dataset, which is generated by solving a single-leader-multiple-follower model reconstructed from a post-disaster recovery single-layer mixed integer linear programming model. This invention enables dynamic closed-loop adjustment and rapid generation of post-disaster recovery schemes.

This utility model discloses a seepage-proof reinforcement structure for tailings dam drainage culverts, including a drainage culvert body. Inside the drainage culvert body are individually assembleable thin-walled steel pipe sections, with grouting ports pre-installed between the thin-walled steel pipe sections and the drainage culvert body. The upper half of the thin-walled steel pipe sections has a reinforced mesh formed by longitudinally and transversely welded No. 8 threaded steel bars. The bottom of the thin-walled steel pipe sections has circumferentially arranged retractable rollers. A socket-type rubber connector is wrapped around the ends of the thin-walled steel pipe sections. The socket-type rubber connector has a pre-fabricated pressure-bearing elastic self-locking buckle at the end of the thin-walled steel pipe section, along with a matching pressure-bearing elastic self-locking buckle latch. This utility model provides initial reinforcement of the original drainage culvert by setting multiple assembleable thin-walled steel pipe sections inside the drainage culvert, followed by reinforcement and seepage control through grouting. This significantly reduces internal construction work and improves construction safety.