24results about "Material flash-point" patented technology

The utility model relates to a pneumoelectric integrated ignition head device for an automatic flash point tester, which comprises an ignition head and a control system, the ignition head comprises an alundum tube, a thermocouple, a gas ignition needle and a silicon nitride ignition head, four through holes are uniformly distributed on the alundum tube, and the thermocouple is arranged in the silicon nitride ignition head. Two wires of the thermocouple, the fuel gas ignition needle and the silicon nitride ignition head are respectively inserted into four through holes of the alundum tube and fixed, the silicon nitride ignition head and the fuel gas ignition needle are on the same horizontal plane, a temperature sensing point of the thermocouple is 5 mm above the fuel gas ignition needle, and combustible gas is guided into the tail end of the fuel gas ignition needle through a gas guide tube. An electromagnetic valve and a fine adjustment needle valve are connected to the gas guide pipe in series, the silicon nitride ignition head is connected into a direct-current power source and connected with a normally-open relay in series, and the electromagnetic valve, the normally-open relay and the thermocouple are all electrically connected with the control system. According to the utility model, gas ignition and electronic ignition can be automatically and freely switched, and the flame size and the electronic ignition aging degree can be detected.

The invention discloses an ignition-free closed-cup flash point measuring system for petroleum products. The ignition-free closed-cup flash point measuring system comprises a sample pretreatment unit, a flash separation unit, a constant-temperature control unit, a flash point detection unit and a data processing unit which are communicated in sequence. The sample pretreatment unit is used for removing solid impurities and moisture in a petroleum sample; the flash separation unit is used for converting the pretreated sample into oil vapor and liquid components; the constant-temperature control unit maintains the temperature stability of the system; the flash point detection unit detects the flammable flash state of the oil vapor in an optical mode; the data processing unit records and analyzes the detection data to output a flash point value. The invention further provides auxiliary modules such as a circulating purification unit and a safety monitoring unit, efficient, accurate and safe measurement of flash points of various petroleum products such as gasoline, diesel oil and lubricating oil is achieved through pressure grading flash evaporation and precise temperature control, the detection period is short, the automation degree is high, and the device is suitable for rapid flash point analysis of laboratories and industrial sites.

The invention discloses an oil flash point online prediction method based on multiple physical quantities and temperature and use duration correction, and belongs to the field of oil performance monitoring and equipment health management. The online prediction method comprises the following steps: collecting multi-physical-quantity sensing signals of oil in the operation process of target equipment, and executing timestamp synchronization, interpolation alignment, abnormal value elimination and sample matrix construction; performing benchmark processing on the temperature sensitive variable by using the temperature correction model; the oil temperature is monitored in real time, the accumulated high-temperature operation duration when the temperature exceeds a threshold value is calculated, time correction is conducted on a flash point according to an empirical formula and an exponential decay model, and the flash point decline effect caused by aging is compensated; taking the multi-physical quantity vector after temperature and oil age correction as input, constructing a multi-model fusion prediction framework, and generating a flash point prediction value through a weighted fusion or stacking strategy; and comparing the predicted flash point with a baseline value, executing hierarchical early warning, generating a structured evidence chain log, and recording input parameters, a model version, a prediction result and threshold setting.

The application discloses an oil product online detection device and relates to the technical field of oil product detection.The device comprises a detection mounting piece, an elastic supporting piece is installed on the detection mounting piece, the detection mounting piece is used for collecting oil products to be detected, a flash point control piece is installed on the elastic supporting piece, the flash point control piece is used for preventing evaporation and diffusion, a limiting control piece is inserted into the detection mounting piece, the limiting control piece is used for limiting the flash point control piece, an overflow part is installed on the detection mounting piece, and the overflow part is used for guiding oil liquid; the flash point control piece can be used to automatically control the suction of oil products and the heating and evaporation of the steam, and only when the ignition rod passes through the oil pot, the oil pot can normally generate steam to perform flash point testing, so that the problem that the current oil product online detection device is not convenient for automatically controlling the prevention of steam volatilization and diffusion when non-testing is solved.

The utility model provides a flash point determinator with an automatic dry powder extinguishing device, which comprises a flash point determinator, the flash point determinator comprises a determination table, the rear side of the determination table is provided with a rear side plate, the left side of the determination table is provided with a left side plate, the right side of the determination table is provided with a right side plate, and the determination table is provided with an experiment cup. A fire extinguishing device is arranged above the position, opposite to the experiment cup, of the left side plate, the fire extinguishing device comprises a fire source sensor and a shell, a circuit board is arranged in the shell, and a plurality of probes are connected to the side, opposite to the experiment cup, of the circuit board in a circumferential array mode; the signal output end of the fire source sensor is electrically connected with the signal input end of a programmable logic controller, and the signal output end of the programmable logic controller is electrically connected with a starting valve of a dry powder extinguisher. According to the utility model, the fire extinguishing device can be utilized to quickly and effectively extinguish fire when the experiment cup is on fire or boils over and flows during flash point analysis, the automation degree is high, and the harm caused by fire disasters is reduced as much as possible.

The utility model relates to the field of oil detection, in particular to an oil quality comprehensive detector, which is characterized in that a viscosity detection module, a moisture detection module, a flash point detection module, a micro oil pump and a control valve are arranged in a case; one end of the micro oil pump is connected with the control valve, and the other end is connected with an external oil sample bottle; the control valve is respectively connected with the viscosity detection module and the moisture detection module; an oil inlet and an oil outlet are formed in a case body of the case, the micro oil pump is connected with an external oil sample bottle through the oil inlet, and the viscosity detection module is connected with the external oil sample bottle through the oil outlet. The oil sample comprehensive detection device integrates the viscosity detection module, the moisture detection module and the flash point detection module, is compact in structure and convenient to carry, and can rapidly and conveniently carry out oil sample comprehensive or independent detection. The oil viscosity is detected through a falling ball method, and compared with traditional capillary detection, the applicable viscosity range is wider, and the adaptability is better. The moisture detection adopts a chemical detection principle, is more accurate and is not easy to interfere.

The invention discloses a method for evaluating the aging performance of flame-retardant insulating oil, and relates to the technical field of performance evaluation of insulating materials of power equipment, and the method comprises the following steps: S1, sample preparation; s2, a sequential coupling aging test: sequentially performing an accelerated thermal aging test and a disruptive discharge aging test on the flame-retardant insulating oil sample; s3, performance parameter testing and characteristic rule identification: testing a flash point, a breakdown voltage, a dielectric loss factor tan delta and an acid value of the sample at different stages of the sequential coupling aging test; analyzing an evolution rule of a flash point along with thermal aging time, change characteristics of a breakdown voltage in thermal aging and breakdown discharge aging processes, and change trends of a dielectric loss factor and an acid value; and S4, comprehensive performance and service life evaluation. According to the invention, through a sequential coupling aging test, a complex working condition of a thermal-electric stress synergistic effect in the transformer is comprehensively simulated, and the limitation of a traditional single aging mode is overcome.

The utility model provides a pressure calibration device for a closed-cup flash point instrument, which belongs to the field of flash point instruments and comprises a flash point instrument body, the flash point instrument body comprises a mechanical arm and a sealing cover, the mechanical arm is mounted on the flash point instrument body and is connected with the flash point instrument body in a matched manner, and the sealing cover is mounted at the bottom end of the mechanical arm and is connected with the mechanical arm in a matched manner; and the adjusting assembly comprises an air pump, a connecting pipe, an electromagnetic valve and a pressurizing pipe. The adjusting assembly is arranged, pressure can be automatically calibrated, working efficiency and adjusting precision are improved, abrasion is not prone to being caused, accuracy and stability are further improved, the dustproof assembly and the cleaning assembly are further arranged, dust can be automatically collected, a dustproof net can be automatically cleaned, and the working efficiency and the adjusting precision are improved. Dust is prevented from entering the flash point instrument body to influence the work of the flash point instrument body, and practicability is improved.

The utility model relates to flash point tester technical field, specifically is a kind of oil cup structure of flash point tester, including annular reinforcing rib one side top portion is provided with shaft head, the cup handle subassembly includes fixed arm and movable arm, the clamping end of fixed arm is located annular reinforcing rib top portion, the clamping end of movable arm is located annular reinforcing rib bottom portion.The assembly of brass cup and cup handle subassembly, realize to provide a set of oil cup structure with good convenient use for flash point tester, through the design of rotatable cup handle subassembly, cup handle subassembly can be rotated when necessary, the angle between cup handle subassembly and brass cup is reduced, cup handle subassembly generates certain storage, to reduce the occupied space of overall oil cup, significantly reduce the storage and transportation space of oil cup, especially suitable for laboratory equipment dense scene.

The invention provides a real-time closed-cup flash point prediction method based on a trace distillation range measuring device, and relates to the technical field of distillation ranges and flash point tests.The method comprises the following steps that a preorder distillation range temperature set is obtained in real time, and the preorder distillation range temperature set comprises initial steam temperatures corresponding to a plurality of preset recovery volume percentage nodes; the steam pressure and the liquid temperature are obtained in real time to obtain the steam pressure change rate and the liquid temperature change gradient, and then the heat capacity disturbance factor of the device is calculated; correcting each initial steam temperature in the preorder distillation range temperature group in real time by using a heat capacity disturbance factor to obtain a corresponding first corrected steam temperature; and calculating and predicting the closed-cup flash point through linear weighting calculation of each first corrected steam temperature based on a weight distribution relation pre-established by the test steam temperature of the preset recovery volume percentage node and the linear correlation characteristic of the closed-cup flash point. According to the method, the closed-cup flash point is predicted while the distillation range is measured, and time and samples are remarkably saved.

An industrial process vessel isolator monitoring system for monitoring an isolated section of a process vessel containing process material includes one or more condition sensors and a controller. The condition sensor is configured to sense at least one environmental condition, such as temperature, humidity, humidity, and / or chemical composition, and generate a condition output indicative of the corresponding sensed condition. The controller is configured to detect at least one segment condition related to the isolated segment based on the condition output and generate condition information related to the at least one detected segment condition. Examples of segment conditions include thermal resistance of the isolator of the isolated segment, damage or degradation of the isolator of the isolated segment, corrosion of the process vessel at the isolated segment, conditions that promote corrosion of the process vessel, and moisture intrusion into the isolator.

The utility model relates to the technical field of flash point instruments, and discloses an automatic low-temperature balance flash point instrument which comprises a flash point instrument body and an unlocking assembly, the unlocking assembly is arranged in the flash point instrument body, a disc cover is arranged in a groove in the top of the flash point instrument body, an igniter is installed at the top of the flash point instrument body, and the flash point instrument body is connected with the disc cover. A stabilizing assembly is arranged at the top of the flash point instrument body and is used for keeping the state of the disc cover stable during an experiment; the stabilizing assembly comprises a mounting groove, and the bottom of the mounting groove is fixedly connected to the top of the flash point instrument body. According to the utility model, experimental materials are put into the disc cover, the L-shaped rotating plate is rotated to separate the clamping block from the clamping hole, and the L-shaped limiting block quickly moves to press the top of the disc cover under the elastic force of the spring, so that the disc cover is prevented from shaking due to material combustion and the like in an experiment, and the experiment stability is prevented from being influenced; operators can select two modes for free switching according to actual needs, so that the use flexibility of the whole equipment is better.

The utility model relates to lubricating oil testing equipment technical field, and specifically discloses a kind of lubricating oil flash point tester, including test cylinder, rotating installation is equipped with mounting shaft in the test cylinder, several electric heating rods are installed in mounting shaft outer wall, electric heating rod end is equipped with scraper, and the side of scraper away from mounting shaft is equipped with wiping sponge, and wiping sponge is contacted with test cylinder inner wall.This utility model utilizes wiping sponge and test cylinder inner wall contact, and wiping sponge rotation and test cylinder inner wall produce friction, i.e., can utilize wiping sponge to clean the liquid for oil dirt to be applied in test cylinder inner wall at the same time using wiping sponge to clean the lubricating oil that test cylinder inner wall residual carries out cleaning processing, and then can be convenient for the lubricating oil that test cylinder inner wall residual carries out cleaning processing, guarantee the cleanness of test cylinder inner wall, guarantee test cylinder next time use is in clean state.

The invention discloses an oil product online detection device, and relates to the technical field of oil product detection. Comprising a detection installation part, an elastic supporting part is installed on the detection installation part, and the detection installation part is used for collecting oil products to be detected; a flash point control piece is mounted on the elastic supporting piece; the flash point control piece is used for preventing evaporation diffusion; a limiting control piece is inserted into the detection mounting piece; the limiting control piece is used for limiting the flash point control piece; an overflow part is mounted on the detection mounting piece; the overflow part is used for draining oil liquid; the flash point control piece can be matched with the suction mounting ring to automatically control and suck steam generated by heating and evaporating an oil product, and when a flash point test is carried out, the oil pot can normally generate steam to carry out the flash point test only when an ignition rod passes through the oil pot; the problem that an existing oil product on-line detection device is inconvenient to automatically control steam volatilization and diffusion during non-test is solved.

The utility model relates to the technical field of pesticide preparation testing, in particular to a pesticide preparation flash point testing system which comprises a flash point testing box, a base is arranged at the bottom end of the flash point testing box, a flame generator is arranged on one side of the top end of the flash point testing box, heat dissipation holes are formed in the side face of the flash point testing box, and an air inlet is formed in the other side of the flash point testing box. A cooling fan is arranged in the air inlet, threaded rods are arranged at the two ends in the flash point testing box, after a pesticide preparation flash point test is completed, the pump body and the cooling fan are started at the same time, the cooling fan can blow air into the flash point testing box, and flowing of air in the flash point testing box is accelerated; meanwhile, cold water in the water tank is pumped into the coiled pipe by the pump body, cold air is generated at the coiled pipe at the moment, the cold air is blown into the flash point testing box by the cooling fan, and the loading cup in the container is cooled and cooled, so that the loading cup is rapidly cooled, the cooled loading cup can be rapidly taken out, the detection efficiency is improved, and the practicability is higher.

A test apparatus and method for determining the smoke point of hydrocarbons, the apparatus including: a device for determining smoke point conforming to the specifications of ASTM D1322-19 standard or an equivalent standard; an imaging device for taking a series of digital images of a flame; an ambient relative humidity sensor for measuring relative humidity; an ambient temperature sensor for measuring temperature; and a computer system connected to the imaging device, the humidity sensor, and the temperature sensor, the computer system being programmed to: analyze the digital images from the imaging device to measure flame height; calculate absolute humidity using the relative humidity and temperature measured by the temperature and humidity sensors; correct the measured flame height as a function of the difference between the calculated absolute humidity and a normalized absolute humidity; and preferably correct the measured flame height as a function of the difference between the pressure during the flame height measurement and the normalized pressure.

The utility model discloses an insulating paint flash point detection device which comprises a base, a detection cup is installed at the top of one side of the base, a hydraulic rod is installed at the top of the other side of the base, and a top frame is installed at the top end of the hydraulic rod. According to the insulating paint flash point detection device, when the flash point detection device needs to be used, a hydraulic rod drives a sealing cover to move downwards through a top frame, a detection cup is opened, to-be-detected insulating paint is injected into the detection cup, then the sealing cover seals the detection cup, the insulating paint is heated through a heater, the temperature of the insulating paint is gradually increased, and the flash point of the insulating paint is detected. The temperature of the insulating paint is monitored through the temperature sensor, continuous ignition is conducted through the electric igniter, the flash point of the insulating paint is detected, the electric igniter, the heater, the temperature sensor and the like are integrated to the sealing cover, the detection cup and the base are detachably connected, and therefore the detection cup can be detached and cleaned; therefore, the detection cup can be cleaned.

The utility model discloses a flash point rapid detection device based on mixed oil, which relates to the technical field of flash point rapid detection of mixed oil and comprises a main body, a lifting push rod is fixedly mounted at the rear end of the upper side in the main body, and the output end of the lifting push rod penetrates through a top plate of the main body and is fixedly connected with a mounting plate. A connecting pipe is fixedly connected to the front end of the lower side of the mounting plate, a cover plate is fixedly connected to the lower side of the connecting pipe, a sealing plate is fixedly connected to the outer end of the lower side of the cover plate, a side plate is fixedly connected to the upper side in the sealing plate, and a polytetrafluoroethylene sealing ring is fixedly connected to the upper end in the side plate. By arranging the cover plate, the electromagnetic check valve, the sealing plate, the side plate, the polytetrafluoroethylene sealing ring, the fixing plate and the sealing groove, the oil cup can be effectively sealed, gaps are prevented from being generated, heat loss is prevented, it is guaranteed that the heated temperature of mixed oil is stable, and it is guaranteed that the detected temperature can serve as the safety standard basis of the mixed oil; and potential safety hazards are effectively reduced.

The invention discloses a rapid balance cup closed-cup flash point tester, and relates to the technical field of flash point testers, the rapid balance cup closed-cup flash point tester comprises a tester main body, one side of the tester main body is provided with a display screen, the other side of the tester main body is provided with a lifting device, one end of the lifting device is fixedly connected with a cup cover, and the other end of the lifting device is fixedly connected with a handle. A cavity is formed in the detector main body, and a heating sleeve corresponding to the cup cover in position is mounted on the inner wall of the cavity. Firstly, the measuring cup is placed in the heating sleeve, then the cup cover is driven by the lifting device to move downwards to form sealing with the top of the measuring cup, then a proper amount of a to-be-detected sample is added into the measuring cup through the feeding pipe, the measuring cup is heated by the heating sleeve and is continuously ignited by the ignition device until a flash point is measured, and recording is performed. Then measurement waste liquid is guided out through the flow guide mechanism, and after the measurement cup is cleaned through the cleaning mechanism, the next detection can be carried out, so that the situation that the equipment needs to be manually cleaned due to multiple measurements is avoided.

The utility model relates to a U-shaped experiment table for a vehicle-mounted oiling detection system, which comprises a mobile platform chassis and a compartment type cabin body arranged on the mobile platform chassis, a plurality of experiment cabinets are arranged in the compartment type cabin body, the plurality of experiment cabinets are enclosed along two side walls and the tail part of the compartment type cabin body to form a U-shaped operation area, and each experiment cabinet comprises a cabinet body and a table board, a containing groove is formed in the table top and is of a square structure. A gas circuit and safety area, a power distribution and energy storage area, an environment guarantee area and a storage area are further arranged in the van type cabin body, an integrated auxiliary function structure is arranged outside the van type cabin body, and a central control and operation area is arranged at the cabinet body position of an experiment cabinet arranged at the central position of the U-shaped operation area; and pipelines and line channels are pre-buried in the compartment type cabin body and the experiment cabinet. According to the utility model, a whole set of insulating oil detection instrument and supporting facilities are integrated in a vehicle-mounted limited space, so that regular arrangement of detection equipment is realized.

The invention relates to the technical field of flash point lifting devices, in particular to a crude oil flash point control system based on heating-vacuum combined degassing, which comprises a collection unit for collecting and filtering crude oil, an analysis unit for detecting the crude oil flash point, the crude oil moisture content and the light components of the stored crude oil, and a control unit for controlling the crude oil flash point. The heating unit is used for determining the initial heating temperature of the stored crude oil so as to reduce the viscosity of the stored crude oil and promote light components to form primary steam to escape, and the degassing unit is used for removing the light components of the stored crude oil based on the vacuum degree; the detection unit is used for judging whether the crude oil flash point control meets the standard or not based on the outflow flash point and judging the reason for not meeting the standard; and the adjusting unit is used for adjusting corresponding parameters or sending out a vacuum degree abnormal notification. The vacuum heating process is effectively adjusted based on the real-time detected flash point of the crude oil subjected to vacuum heating, and the removal efficiency of light components in the crude oil is effectively improved.

The utility model provides an electronic ignition coil capable of improving the testing accuracy of a flash point value. The electronic ignition coil capable of improving the testing accuracy of the flash point value comprises a stainless steel sleeve, a supporting piece and an ignition coil, the ignition coil is a platinum ignition coil; the ignition coil comprises a spiral part and an outer side lead; the form of the spiral part comprises that the spiral coil is on the same horizontal plane or the spiral coil extends along the supporting piece; when the spiral coils are in the same horizontal plane, a first angle is formed between the spiral coils and the outer side lead; when the spiral coil extends along the supporting piece, a second angle is formed between the stainless steel sleeve and the supporting piece. The electronic ignition coil is simple in overall structure and convenient to use, and the flash point value measured in the plateau area is high in accuracy and small in deviation.

The application relates to the technical field of flash point testing, in particular to a steam treatment device of an open flash point tester, which comprises a flash point detection structure, the outer side of the flash point detection structure is fixedly connected with a closed air-permeable structure; the inside of the closed air-permeable structure is provided with a flue gas sensor for detecting the flue gas content entering the inside of the closed air-permeable structure; the flash point detection structure comprises a detector, the right side of the detector is fixedly connected with a positive pressure processor for carrying out positive pressure blowing treatment on the inside of the detector; the detector comprises a base, the upper surface of the base is fixedly installed with a display screen and a sealed partition frame, the upper surface of the base is provided with a reactor, the middle part of the reactor is provided with a containing groove; through the setting of the closed air-permeable structure and the flash point detection structure, the technical problem that the volatilized oil testing is easy to be artificially absorbed to cause damage to the human body and thus the use effect of the oil testing intelligent open flash point testing device is reduced in the background art is solved.

The invention discloses a spontaneous combustion detector for high-viscosity powder. The spontaneous combustion detector comprises a test bin, a bubble generation module, a direct-current high-voltage electrode, a spectral analysis module and a data acquisition and control system, an anti-sticking and anti-static coating is arranged on the inner wall of the test bin, and a microporous ceramic disc is arranged at the bottom of the test bin and used for introducing gas to generate bubbles; the direct-current high-voltage electrode comprises a main electrode and an auxiliary electrode, and a segmented electric field is formed in the powder through independent adjustment of a multi-channel high-voltage power supply so as to damage agglomeration and promote release of combustible components; the spectroscopic analysis module is used for detecting spectral information of bubble rupture volatile matters; the data acquisition and control system cooperatively controls gas flow, electric field voltage and spectrum scanning according to PID and an interval judgment algorithm, and rapid and accurate detection is achieved. According to the method, heating or mechanical stirring is not needed, detection can be completed within 60-120 seconds at the normal temperature, the sensitivity reaches 10-100 ppm, and the method is suitable for spontaneous combustion risk screening of high-viscosity powder in the fields of coal, metallurgy, chemical engineering and the like.