40results about How to "Exact usage" patented technology

The invention relates to a method of testing release rate and composition of gas released by calcium carbide dust upon contact with moisture, and mainly solves the problem of the prior art where detection of the release rate and composition of flammable explosive gas produced by reaction of calcium carbide dust with water vapor has poor effect. The method used herein is characterized in that an apparatus of testing release rate and composition of gas released by calcium carbide dust upon contact with moisture is used to test the release rate and composition of the gas released by the calcium carbide dust upon contact with moisture, the apparatus comprises a water vapor premixer, a precision moisture meter, a calcium carbide dust raising unit, a calcium carbide dust raising controller, a gas release rate test system, a gas composition test system and a computer control system, the water vapor premixer is capable of generating water vapors of different humidities, and the water vapor premixer is connected with the precision moisture meter; by using the above technical scheme, the problem above is well solved; the method is applicable to the test on release rate and composition of gasreleased by calcium carbide dust upon contact with moisture.

The invention discloses a device for quickly and uniformly adding diluent and inhibitor when stirring fails, which includes a reaction tank, a storage tank 1, a storage tank 2 and a storage tank 3, the inhibitor is placed in the storage tank 1, and the storage tank 2 is placed Diluent, cooling solvent is placed in the third storage tank, the first storage tank, the second storage tank and the reaction tank are connected through the main feeding pipeline, the middle section of the main feeding pipeline is provided with a feeding pump and an inlet valve, and the main feeding pipeline The tail section is located below the stirring paddle, and the tail section is in the shape of a coil, with several feeding holes distributed on the disk surface; the reaction tank and the storage tank three are connected by the main discharge pipe, and the front section of the main discharge pipe is set There is a safety valve, the middle section of the discharge main pipe is provided with an outlet valve, the tail section of the discharge main pipe is located on the top of the reaction tank, the tail section is coiled, and there are several discharge holes distributed on the disk surface. The device quickly stops runaway reactions by adding diluents and inhibitors to the reaction tank.

The invention provides a testing device for an ignition distance of an aerosol spray, which comprises a control component, a spray generating component and a combustion component. The distance between the spray generating component and the combustion component is controlled by the control component; the spray generating component is used for controlling the spraying of the spray product; and the combustion component can spray the spray out of the product within a certain distance so as to generate spray for continuous combustion, so that the ignition distance of the aerosol spray is determined. The testing device is used for testing the ignition distance of the ignitable aerosol spray. Therefore, the safety of aerosol sprays and other dangerous chemicals in production, management and test is guaranteed.

The invention relates to an apparatus of testing release rate and composition of gas released by calcium carbide dust upon contact with moisture, and mainly solves the problem of the prior art where detection of the release rate and composition of flammable explosive gas produced by reaction of calcium carbide dust with water vapor has poor effect. The apparatus of testing release rate and composition of gas released by calcium carbide dust upon contact with moisture comprises a water vapor premixer, a precision moisture meter, a calcium carbide dust raising unit, a calcium carbide dust raising controller, a gas release rate test system, a gas composition test system and a computer control system; by using the above technical scheme, the above problem is well solved; the apparatus is applicable to the test on release rate and composition of gas released by calcium carbide dust upon contact with moisture.

The invention discloses an intelligent handover cabinet system and intelligent handover method based on internet of things. The system comprises an intelligent handover cabinet management platform, an electronic recharging cabinet storing, an identity identification device, wherein the intelligent handover cabinet management platform is used for taking charge of identity verification of handover personnel, intelligent matching analysis, cabinet door article binding and cabinet door monitoring and remotely issuing a door opening instruction according to identity verification information; the electronic recharging cabinet storing conducts network communication with the intelligent handover cabinet management platform through WEB and is used for storing handover articles, voice prompting broadcasting and executing a door opening operation according to the remote door opening instruction; the identity identification device is connected to the intelligent handover cabinet management platform and is used for conducting identification on the identity of the handover personnel. The intelligent handover cabinet system and intelligent handover method based on internet of things improve working performance of the handover personnel in the work, strengthen effectively security control over stored articles, achieve automation and intellectualization of a handover process, improve degree of accuracy of the handover process, and reduces sharply human cost in the handover process of the articles.

The invention discloses a frequency shift keying signal board test device and a test method simulating a practical service environment. The test device comprises a system bus and an SYN, a switch network, a switch host, an analogue user board and a two-line loop analogue board which are connected to the system bus, wherein the analogue user board is connected with the two-line loop analogue board through a user cable; and the system bus is connected with multiple frequency shift keying signal boards to be tested. The test device disclosed by the invention is a fixed switch architecture with the basic calling function; and by combining the test device and the test method, the practical service environment of the frequency shift keying signal board can be simulated perfectly, and the working state of the frequency shift keying signal board and the quality of the signal generated by each channel can be automatically and accurately tested.

The invention relates to a deep detection method of an IPSec VPN protocol based on stream, which is applied in the network safety field. The deep detection method of the invention firstly carries out cyclic monitoring under the promiscuous mode that network card is opened in an intelligent agent or a probe machine, and a BPF filter is arranged to snatch an IPSec VPN message. The deep inspection method can store and carry out deep detection on the sequence stream of IPSec message, can identify and analyze whether the IPSec VPN message is faked and is the message of non-standard format or not, and can analyze the differences between the message of non-standard format and the message of standard format according to the context of the sequence stream of the IPSec VPN message. The deep detection method provided by the invention based on the session state of the protocol has considerable intelligence and stable performance, can analyze the message of unknown format and can be easily realized and applied in the fields such as supervision agency, firewall, IDS, etc.

The invention relates to a method of testing release rate and composition of gas released by calcium carbide dust upon contact with moisture, and mainly solves the problem of the prior art where detection of the release rate and composition of flammable explosive gas produced by reaction of calcium carbide dust with water vapor has poor effect. The method used herein is characterized in that an apparatus of testing release rate and composition of gas released by calcium carbide dust upon contact with moisture is used to test the release rate and composition of the gas released by the calcium carbide dust upon contact with moisture, the apparatus comprises a water vapor premixer, a precision moisture meter, a calcium carbide dust raising unit, a calcium carbide dust raising controller, a gas release rate test system, a gas composition test system and a computer control system, the water vapor premixer is capable of generating water vapors of different humidities, and the water vapor premixer is connected with the precision moisture meter; by using the above technical scheme, the problem above is well solved; the method is applicable to the test on release rate and composition of gasreleased by calcium carbide dust upon contact with moisture.

The invention relates to a method for determining the influences of impurities on the thermal stability of a solid self-reactive substance, and mainly solves a problem that methods for testing the influences of the impurities on the thermal stability of the solid self-reactive substance are not established in the prior art. The method for determining the influences of impurities on the thermal stability of the solid self-reactive substance adopts differential scanning calorimetry, vacuum stability and self accelerating decomposition temperature (SADT) testing processes to respectively determine the thermal stability, the stability under vacuum conditions and SADT of each of the solid self-reactive substance and a solid self-reactive substance and impurity mixture in order to evaluate whether the impurities are compatible with the solid self-reactive substance to be tested or not, and can be used to determine the influences of the impurities on the thermal stability of the solid self-reactive substance.

The invention discloses a method for quickly reducing temperature and pressure of a runaway reaction system. Devices used in the method include a reaction tank, a storage tank I and a storage tank II, wherein each of the reaction tank and the storage tank I is provided with an inlet and an outlet; the outlet II of the reaction tank and the inlet I of the storage tank I are connected through a first pipeline; the outlet I of the storage tank II and the inlet II of the reaction tank are connected through a second pipeline; and the second pipeline extends into the reaction tank, forms a coil shape in the middle of the reaction tank, and then extends out through the top of the reaction tank to the storage tank II; and a stirring device is mounted and started to react. Along with proceeding of reaction, the temperature and pressure of the reaction system are raised. When the temperature and pressure are raised to the maximum value of a safety valve, the safety valve is opened. At this moment, high-temperature gas enters the first storage tank I through the first pipeline. A cooling liquid in the storage tank I is discharged from the outlet I of the storage tank I and enters the reaction tank from the front section of the second pipeline and sequentially passes through the middle section and the tail section of the second pipeline, thereby achieving the function of reducing the temperature of the reaction system.

The present invention discloses a method for rapidly and uniformly adding a diluent and an inhibitor during stirring failure. According to the present invention, the used apparatuses comprise a reaction tank, a storage tank 1, a storage tank 2 and a storage tank 3, an inhibitor is placed in the storage tank 1, a diluent is placed in the storage tank 2, a cooling solvent is placed in the storage tank 3, the storage tank 1, the storage tank 2 and the reaction tank are connected through a material feeding main pipeline, the middle portion section of the material feeding main pipeline is provided with a material feeding pump and an inlet valve, the tail portion section of the material feeding main pipeline is positioned below a stirring paddle, the tail portion section is coil-like, a plurality of material feeding holes are distributed on the disk surface, the reaction tank and the storage tank 3 are connected through a material discharge main pipeline, the front portion section of the material discharge main pipeline is provided with a safe valve, the middle portion section of the material discharge main pipeline section is provided with an outlet valve, the tail portion section of the material discharge main pipeline is positioned at the top portion of the reaction tank, the tail portion section is coil-like, and a plurality of material discharge holes are distributed on the disk surface; and according to the method, the diluent and the inhibitor are added to the reaction tank so as to rapidly prevent the occurrence of the runaway reaction.