305 results about "Thermocouple device" patented technology

The application discloses a kind of proton exchange membrane fuel cell single cell multi-stress condition test tooling. Including the polar plate with multichannel serpentine flow field, semiconductor refrigerating sheet, flexible film thermocouple, flexible film pressure sensor and electromagnet. Semiconductor refrigerating sheet is pasted to the two sides of cell, and temperature control is realized in two directions by switching polarity;Flexible film thermocouple is coupled therebetween, for in-situ temperature measurement;Flexible film pressure sensor and electromagnet are correspondingly arranged, and pressure is controlled and monitored in real time by adjusting electromagnet current. The application realizes the coordinated accurate regulation and control of temperature, pressure and flow field, solves the problem of temperature control lag and pressure unevenness in traditional test, and significantly improves the test reliability and data quality.

This application discloses a gas valve and a gas control system. The gas valve includes a valve body and first and second valve groups. The valve body has first and second gas supply paths. The first gas supply path supplies gas to a constant flame burner, and the second gas supply path supplies gas to a main furnace burner. A first valve port is provided on the first gas supply path, and a first valve port and a second valve port are provided on the second gas supply path. The first and second valve groups are used to open and close the first and second valve ports, respectively. The first valve group is a thermocouple solenoid valve, which includes a coil, at least two magnetic conductors, and a sealing element. At least one magnetic conductor is fixedly connected to the valve body, and the other magnetic conductor is connected to the sealing element and can move the sealing element closer to or away from the first valve port. When the coil is energized, the magnetic conductor fixed to the sealing element and the magnetic conductor fixedly connected to the valve body are attracted, and the sealing element is in an open position away from the first valve port. This gas valve has a simple structure and high reliability.

The utility model discloses a gear casting annealing device, its annealing heat treatment furnace front side outer surface fixedly connected with display screen, annealing heat treatment furnace front side inner surface rotationally connected with the furnace door, the handle is fixedly connected with the furnace door front side outer surface, the thermocouple temperature sensor is fixedly connected with the annealing heat treatment furnace left side near the edge inner surface, the annealing heat treatment furnace middle position is provided with the turnover device, the clamping device is provided in the annealing heat treatment furnace. Through the above structure, through annealing heat treatment furnace annealing, through the rotation of the workpiece that the turnover device drives carries out annealing treatment, through the clamping device clamping the workpiece that needs to carry out annealing treatment, makes it not to fall off when rotating, to this realization gear casting uneven heating problem when annealing.

A gas temperature field reconstruction method using thermocouple measurement correction is disclosed. First, an Inventor 3D model and an ANSYS temperature field model are established for the gas temperature field. Then, a mapping relationship is established between the control parameters of the gas temperature field and the boundary conditions of the ANSYS temperature field model. Based on the principle of maximizing the influence of fuzzy boundary conditions on the temperature field reconstruction results, experiments are designed for precise boundary conditions and experimental data are obtained. Next, given the boundary conditions of the ANSYS temperature field model, the model is run to obtain the temperature field reconstruction results. A model quality assessment algorithm is run to calculate the fitting degree between the measured curve and the simulation curve, obtaining the algorithm fitting parameters. The algorithm fitting parameters are selected to form the loss function of the gradient descent algorithm. The learning rate, termination condition, and initial iteration parameters are determined. The gradient descent algorithm is run until convergence. Finally, the final iteration parameters are taken as the correction result of the fuzzy boundary conditions of the ANSYS temperature field model. This invention improves the spatiotemporal resolution of the temperature field reconstruction results.

This application relates to the field of kitchen appliance technology, and more particularly to an inner ring burner cap and a gas stove. The inner ring burner cap has an inner ring cavity; ignition holes and flame-preserving holes, respectively communicating with the inner ring cavity, are formed on the side walls of the inner ring burner cap. The ignition holes are configured opposite to the ignition needle, and the flame-preserving holes are configured opposite to the thermocouple; a main burner hole, communicating with the inner ring cavity, is provided at the top of the inner ring burner cap; an ignition groove, communicating with the inner ring cavity, is formed on the outer side wall of the inner ring burner cap, arranged around the axis of the inner ring burner cap, and located between the outlet of the flame-preserving hole and the outlet of the main burner hole. The ignition groove on the inner ring burner cap facilitates the upward propagation of the flame at the flame-preserving hole to form a flame at the main burner hole, enabling the inner ring burner cap to achieve rapid and stable flame propagation, thus improving the user experience.

This application provides a coal powder sampling and wind speed measurement device. The device includes a sampling unit, a flow velocity measurement unit, and an air compression unit. A coal powder sampling gripper in the sampling unit is rotatably mounted at one end of a sampling tube, and the gripper is internally connected to the sampling tube. An electrically controlled rotation device controls the rotation of the coal powder sampling gripper. A cyclone separator is installed at the other end of the sampling tube. A thermocouple in the flow velocity measurement unit is located inside a back-mounted tube. A coal powder tube temperature measuring device is connected to the thermocouple, and a coal powder tube wind speed measuring device is connected to the back-mounted tube. The air compression unit has a negative pressure pipeline where compressed air is introduced at one end and discharged at the other end to generate negative pressure in the cyclone separator. This negative pressure pipeline is used to adjust the air velocity based on the dust flow velocity measured by the flow velocity measurement unit. A back-flushing pipeline is connected to the cyclone separator. This device improves sampling accuracy and avoids sampling tube blockage.

This invention belongs to the field of arc heater technology and discloses a testing device and method for testing the arc spot position and rotation speed of an arc heater. During the test, a wireless data acquisition device, powered by a battery, is installed on the high-voltage rear electrode of the arc heater. The wireless data acquisition device is electrically isolated from other components and the ground. Several thermocouples are installed at equal intervals along the axis on the cathode wall of the inner shell of the electrode. The thermocouple wires are connected to the wireless data acquisition device through a cooling channel. After acquiring the temperature value, the wireless data acquisition device transmits it to the wireless AP in the test hall via a wireless transmitter, and then to the industrial control computer. Based on the obtained temperature value, the operator determines the axial coordinate of the arc spot, determines the rotation speed of the arc spot, calculates the heat flux value of the arc spot, and captures motion images of the arc spot. The testing device and method provide data support for the control of the arc spot position and rotation speed of the arc heater, thereby improving electrode lifespan and reducing the operating cost of the arc heater.

The application discloses a thermocouple suitable for temperature measurement of an internal combustion engine piston, and the thermocouple comprises a thermocouple wire and an armored sleeve, the armored sleeve comprises a large-end and a small-end, and the large-end is installed on the high-temperature gas side. The middle surface between the large-end and the small-end bears the pressure of the high-temperature gas in the piston, and simultaneously plays a sealing role, so that the high-temperature gas is prevented from leaking out from the gap between the piston and the thermocouple. The application further discloses a mounting method of the thermocouple suitable for temperature measurement of the internal combustion engine piston. For a monolithic piston, different mounting modes are selected according to the temperature measurement point position of the piston. For a combined piston, a protective sleeve is arranged between the piston crown and the piston skirt, and the thermocouple extension line passes through the protective sleeve, so that the thermocouple can work reliably and stably in the harsh environment of high temperature and high pressure.

The utility model relates to a thermocouple field discloses a kind of wear-resistant thermocouples, including junction box, the inside fixed mounting of junction box has hot electrode, the outer wall of hot electrode is equipped with insulating sleeve, the bottom of junction box is connected with the protective sleeve being provided, and hot electrode is inside the protective sleeve, the outer wall bottom of the protective sleeve is provided with flow guide mechanism, the flow guide mechanism includes outer thread, and the outer thread is fixedly connected in the outer wall bottom sleeve of protective sleeve.In the utility model, excellent wear resistance is realized by flow guide mechanism, the flared structure of flow guide cover can increase medium contact area, reduce high-speed medium in pipeline to low speed, greatly reduce abrasive impact force, while inner wall guide medium flows along cover body outside, avoiding hot electrode measuring end;Two sides flow guide plate and the connecting rod of bottom, front and back side form protective frame, further isolate abrasive impact, effectively avoid protective sleeve rapid wear, significantly prolong the service life of thermocouple.

The present application relates to a kind of embedded film thermocouple array heat flow sensor for slab continuous casting crystallizer and on-line monitoring method, belong to continuous casting process detection technical field.Sensor includes flexible insulating substrate, thin film thermocouple array being arranged on the surface of flexible insulating substrate, lead electrode being connected with thin film thermocouple array, and protective packaging layer for covering thin film thermocouple array.Monitoring method includes, calibrating sensor is embedded in crystallizer copper plate hot face, real-time acquisition potential signal output by each subunit of thin film thermocouple array;Local heat flow density at each thermocouple subunit is calculated, and the instantaneous heat flow distribution cloud picture of crystallizer copper plate surface is reconstructed by interpolation method;When local heat flow density exceeds preset threshold or heat flow fluctuation amplitude exceeds set range, prewarning signal is sent.The present application realizes the in-situ, direct measurement of crystallizer hot face heat flow, response speed is fast, can realize transient heat flow measurement and the fine measurement of local heat flow distribution.

There is disclosed a thermoacoustic system. The system comprises a thermocouple junction and an electronic signal generator for generating an acoustic frequency driving signal across the junction, which causes the system to generate an acoustic wave via the Peltier effect.

The application discloses a kind of IGBT module's failure prediction method and system, including IGBT module, the input end of the IGBT module is electrically connected with operating monitoring system bidirectionally, and the output end of the operating monitoring system is electrically connected with control circuit bidirectionally.The application is collected by contact thermocouple, thermistor, infrared thermal imaging camera, diffusion coefficient monitoring module, mobility monitoring module, carrier concentration monitoring module, short-circuit test module and Qg test module to IGBT module internal data and is transferred to control circuit after integration by integrated collection module, terminal processor processes data and transmits it to IGBT module operating prediction system to predict and judge, can improve the monitoring mode of existing IGBT module, can monitor and predict the existing and future state of IGBT module, user can timely master the unexpected dangerous condition of IGBT module in running process, avoid the safety of IGBT module is influenced.

The utility model discloses a kind of thermocouple response time measuring devices, including measuring pipeline, vertical pipeline, electric heating equipment and fixture, one end of measuring pipeline is provided with import, the other end is provided with export, vertical pipeline is vertically set on measuring pipeline, and with the inside of measuring pipeline is communicated, electric heating wire is set on the outer surface of measuring pipeline and vertical pipeline, fixture is located at the top of measuring pipeline, and fixed plate is vertically slidably arranged on fixture;High thermal conductivity lead bismuth liquid is used as medium in the application, heat can be quickly transferred to thermocouple and armored sleeve, reduce the lag caused by sleeve thermal resistance, fit actual working condition, reduce the measurement deviation caused by medium thermal property difference;Electric heating equipment precision temperature control, cooperate with flowing lead bismuth liquid, both ensure that step temperature test is accurate, and simulate actual dynamic heat exchange, avoid the response time misjudgment caused by heat accumulation at sleeve under static state.

The present application relates to the technical field of graphitization furnace temperature monitoring, and particularly relates to a graphitization furnace working temperature measuring device and a measuring method. The method comprises: obtaining furnace core thermocouple data, gas inlet pressure and gas mass flow rate of a protection tube during the working process of the graphitization furnace; obtaining viscosity correction flow resistance at each moment according to the thermocouple data, gas inlet pressure and gas mass flow rate at each moment; if the gas inlet pressure in a local period at a moment satisfies the pressure steady state condition and the thermocouple data satisfies the temperature reference interval, then obtaining flow resistance instantaneous fluctuation value according to the difference between the viscosity correction flow resistance at each moment in the period in which the corresponding moment is located and the overall distribution; obtaining a crack jet characteristic index by combining the flow resistance instantaneous fluctuation value and the gas inlet pressure, and then taking corresponding response actions. The present application provides reliable protection for the integrity of the thermocouple protection tube of the core temperature measuring element of the graphitization furnace, and improves the intelligent level and operation safety of the graphitization production process.

The application discloses a kind of boiler heating surface wall temperature detection device and detection method, including fixed component, including boiler, heating surface, support, thermocouple, cladding metal, data transmission piece, display piece and teletransmission piece, the heating surface is located in the boiler, the support is set to the side of the boiler.This application has beneficial effects: by setting fixed component for temperature monitoring to heating surface, by setting clamping assembly for thermocouple is clamped, and a force to heating surface is applied to thermocouple, so that thermocouple does not occur contact bad phenomenon, solve the thermocouple and the poor contact of boiler heating surface, lead to the temperature data obtained is low, so that worker cannot adjust the temperature of boiler in time, prone to boiler explosion and other safety accidents.

The utility model relates to heating platform structure technical field especially relates to a kind of heating platform structure for vacuum cavity.Its technical scheme includes vacuum cavity and with the lower cavity component of vacuum cavity moulding, the lower cavity component includes lower cavity plate and heating plate component, vacuum joint and at least one group of collar joint are fixedly installed on lower cavity plate, oil passage is equipped in the heating plate component, temperature measuring thermocouple component is fixedly installed on lower cavity component, and the temperature measuring thermocouple component real-time monitoring heating plate component's temperature.The utility model improves the temperature of reaction cavity to suitable range, makes the active particle movement speed of oxygen plasma accelerate, and the chemical reaction rate of photoresist is significantly improved, realizes the uniform distribution of cavity temperature, and promotes to ensure the plasma reaction consistency of each area of workpiece surface.

The present disclosure relates to portable conduction welding apparatus, systems, and methods. An apparatus (10) has a heating system (46) having a first heater assembly (50) and a second heater assembly (52), each having a machined insulation block (56), a machined heater block (58), a heater element (74), and a thermocouple (96). The apparatus (10) has a force application and monitoring system (102) having a clamp assembly (104) and a load sensor (160). The apparatus (10) has an indexing assembly (166). The apparatus (10) has one or more controllers (85). The apparatus (10) is portable and configured to weld a thermoplastic composite part (24a) and a second thermoplastic composite part (24b) together at a weld line (28a) by applying a force (162) and conducting heat (30) at the weld line (28a) during a heat welding cycle (75).

This utility model relates to a high-temperature resistant metal-head thermocouple, comprising a metal shell that is closed at the top and open at the bottom, and a thermocouple. The thermocouple is disposed inside the metal shell and abuts against or near the closed surface. The two leads of the thermocouple extend out of the metal shell through the open end, and a signal line shielding sleeve is sleeved between the end of the lead near the thermocouple and the metal shell. This thermocouple has the advantages of simple structure, high temperature resistance, and long service life. The signal line shielding sleeve can reduce signal interference to the lead, making the temperature sensing signal transmission circuit more accurate and faster.

This invention relates to a method and device for detecting material leakage from injection molding machine nozzles, belonging to the field of detection technology. It includes: responding to a fully automatic machine signal; continuously acquiring the current thermocouple temperature and injection pressure values ​​of the nozzle; setting an abnormal temperature; comparing the thermocouple temperature with the abnormal temperature to determine if the nozzle is currently in an abnormal temperature state; determining if the nozzle is currently in an abnormal pressure state based on the injection pressure value; and determining if the nozzle is simultaneously in an abnormal temperature and abnormal pressure state, triggering an alarm and / or stopping the machine. This invention achieves the effect of effectively detecting material leakage from injection molding machine nozzles using only two key parameters—thermocouple temperature and injection pressure—without requiring a large number of additional, highly sophisticated sensors, thus significantly reducing detection costs.

This invention discloses a high-temperature liquid sodium-metal oxidation corrosion experimental system, relating to the field of corrosion resistance testing devices. It includes an experimental body, a gas path system, a heating coil, multiple thermocouples, a controller, and a DC power supply. The experimental body comprises a pressure-holding container, multiple independent sample containers, and a positioning disk. Each sample container consists of hollow bolts, nuts, annular gaskets, and a wire mesh wick. The metal sample is placed on the wire mesh wick. The gas path system is connected to the pressure-holding container. The heating coil is wound around the outer surface of the pressure-holding container, and the thermocouples are inserted into the pressure-holding container. The controller is connected to both the thermocouples and the DC power supply, which is also connected to the heating coil. The wire mesh wick, metal samples, and sample containers are made of the same material, thus avoiding interference with the corrosion reaction of the metal samples. The sample containers are independent, and different metal samples do not affect each other. Combining different oxygen contents, metal samples, and wire mesh wick mesh sizes allows for the acquisition of richer experimental data in a single operation.

The utility model discloses smelting furnace leaks aluminum alarm device, including smelting furnace body, the right side of smelting furnace body is provided with furnace eye, the right side fixed mounting of smelting furnace body has the box, the top fixed mounting of box has the casing, the bottom fixed mounting of casing inner wall has the motor, the output fixed mounting of motor has the threaded rod, the outside screw thread connection of threaded rod has the threaded block, the right side fixed mounting of threaded block has the L shape pole, the other end of L shape pole passes out box fixed connection and has the junction box, the left side fixed mounting of junction box has K type thermocouple, the utility model discloses the cooperation of above -mentioned structure, realized in the process of heating aluminum water to the temperature of smelting furnace furnace eye place and monitored, thereby can timely find the leakage of aluminum situation at furnace eye place, and can guarantee cast -roll equipment safe and stable to produce.

The utility model relates to the technical field of detection module, especially for the multimode detection module for vehicle lithium battery, including multispectral imager, two multispectral imager respectively are established in the top both sides of metal frame, the inside of metal frame is equipped with a plurality of battery group, the inside of battery group is equipped with a plurality of electric core, the top of electric core is pasted with fiber bragg grating sensor, the top of battery group is equipped with three NTC film thermocouple. The support rod in the device is obliquely installed on both sides of the metal frame, which can optimize the viewing angle of the two multispectral imagers, so that the battery group can be fully covered to eliminate dead angles. The hydrogen sensor is embedded in the contact side of the battery group, which can capture combustible gas leakage in real time to speed up the early warning. The design of the protective shell can provide physical protection for the electric core and ensure the surface of the NTC film thermocouple to measure temperature. The three NTC film thermocouples are distributed on the top front, middle and back of the protective shell, which can monitor the temperature gradient and accurately locate the overheating.

This invention aims to improve the time response of temperature measurement and to realize a multi-point thermocouple that eliminates temperature variations due to the position of the contacts when measuring the temperature inside a device where heat flow is unidirectional. [Solution] A multipoint thermocouple 1 having multiple temperature-measuring contacts 4, wherein the contact point between the metal of the first electrode 11 and the metal of the second electrode 12 is the temperature-measuring contact 4 of the thermocouple, and the cylindrical outer cylinder 2 forms the first electrode 11, and the outer cylinder 2 has two or more wires (second electrode wires 3) forming the second electrode 12 inside the outer cylinder 2, all of the second electrode wires 3 are in contact with the inner surface of the outer cylinder 2 to form the temperature-measuring contacts 4, all of the temperature-measuring contacts 4 are arranged in the same direction in the circumferential direction 15 of the outer cylinder 2, the first electrode 11 and the second electrode 12 are insulated from each other except for the temperature-measuring contacts 4, and furthermore the second electrode wires 3 are insulated from each other.

An in-situ reaction cell adapted for chemiluminescence detection in polymer material reaction processes belongs to the interdisciplinary field of analytical instruments and material aging characterization. This in-situ reaction cell comprises a main body shell, a pull-out sample introduction device, a temperature control system, and a light window cover assembly. The main body of the reaction cell has a reaction cavity and is equipped with inlet and outlet ports to allow for the introduction of various atmospheres. The pull-out sample introduction device includes a sample slot, a pull guide rod, and a pull rod head, enabling stable sample loading and precise positioning. The temperature control system uses a ceramic heating element and a thermocouple working in tandem to achieve precise temperature control. The light window cover assembly adopts a spiral quick-release structure, equipped with a detachable light window and a bandpass filter for easy acquisition of luminescence signals. This invention achieves real-time, in-situ, and highly sensitive monitoring of free radical pathways during polymer reactions, solving the problems of poor adaptability, insufficient accuracy and stability of optical signal acquisition in traditional in-situ reaction cells.

This invention provides an automated sample preparation machine and method for load combustion testing of flame-retardant cables used in mining, relating to the technical field of cable pretreatment equipment. The sample preparation machine includes a frame, an electrical control module, and sequentially arranged conveying mechanism, clamping mechanism, combined tool holder system, and drilling mechanism. The conveying mechanism is used to clamp and transport the cable specimen; the clamping mechanism is used to fix the cable specimen during operation; the combined tool holder system includes a large tool holder and a small tool holder for peeling the outer and inner insulation layers of the cable, respectively; the drilling mechanism is used to punch thermocouple mounting holes; and the electrical control module coordinates and controls the actions of each mechanism. The corresponding method, through conveying, positioning, and clamping, automatically completes the precise circumferential cutting and peeling of the outer and inner insulation layers at both ends of the cable, as well as the opening of detection holes. This invention achieves automation, precision, and safety in the pretreatment process for load combustion testing of flame-retardant cables used in mining, solving the problems of low efficiency, poor accuracy, high risk, and large material loss associated with manual sample preparation.

This invention relates to the field of heat treatment equipment technology, specifically to an intelligent control device and method for the heat treatment process of large castings. It utilizes thermocouple sensors and atmosphere concentration sensors installed in the annealing furnace to collect data. By analyzing historical annealing data of qualified and unqualified products, it identifies the heat transfer relationship between different thermocouple regions. Combining the cumulative effect of abnormal influences at different stages in different regions, it sets temperature change thresholds for each region. This solution not only achieves precise control of local temperatures but also improves the uniformity of the overall temperature field and process stability during the annealing of large castings by compensating for thermal interference between regions.

The application discloses a kind of large composite component autoclave process monitoring thermocouple arrangement and control methods, method includes the following steps: obtaining the temperature field data of whole curing process curve of part in autoclave;Obtain the low-temperature score sum and high-temperature score sum of each node;Obtain high-temperature score set and low-temperature score set;Screen out high-score low-temperature node and high-score high-temperature node;Obtain the node after optimization;According to the position and quantity of the node after optimization, arrange and control thermocouple.The application locks key monitoring point by unified scoring logic and dynamic weight mechanism, avoids the problems of part replacement failure and difficulty in capturing real temperature difference of experience scheme, overcomes the contingency and instability of single feature point tracking, effectively reduces process abnormal misjudgment and missed judgment risk, ensures accurate coverage of temperature key area while avoiding redundant arrangement. Ensure that monitoring target is always focused on temperature key area, avoid monitoring failure caused by feature point position distortion.

The application discloses a high-efficiency continuous hot galvanizing production line direct-burning furnace, relates to the technical field of steel wire hot galvanizing, and aims to improve the flexibility of a steel wire galvanizing process, and comprises a furnace body, a cooling box arranged at the top side of the middle part of the furnace body, a turnover structure arranged in the cooling box, and two guide structures symmetrically arranged on the two sides of the turnover structure, a zinc liquid tank is arranged in the furnace body, a plurality of in-pipe ceramic thermocouples are arranged at the bottom of the zinc liquid tank, and a plurality of furnace body thermocouples are arranged on the inner wall of one side of the furnace body; the opening of the U-shaped cylinder is driven to face downward, the main buckle and the auxiliary buckle are driven to rotate downward under the action of gravity, the main buckle and the auxiliary buckle are opened, space is provided for the steel wire to enter, the U-shaped cylinder is driven to rotate in the opposite direction, the main buckle wraps the auxiliary buckle, the U-shaped cylinder forms a circular cylindrical shape, and the transformation between the first galvanizing process and the second galvanizing process is realized when the steel wire passes through the equipment to proceed to the next step, so that the steel wire galvanizing efficiency is improved, and the flexibility of the steel wire galvanizing process is improved.

This application relates to a sealing ring installation tool. The sealing ring installation tool includes an installation body with a through hole along a first direction; the outer surface of the installation body has at least one groove surrounding the through hole. The installation body has at least two splitting slits extending along the first direction, capable of dividing the installation body into at least two parts. By providing the groove on the outer surface of the installation body, a sealing ring can be fitted onto the installation body and locked into the groove for positioning. By providing the through hole, the installation body can be fitted onto an instrument tube, allowing it to move along the instrument tube towards the thermocouple column, thus conveying the sealing ring to the vicinity of a first or second mounting groove. The installation body is then split along the splitting slits to remove it from the instrument tube or thermocouple column, leaving the sealing ring on the thermocouple column, and then the sealing ring is installed into the corresponding first or second mounting groove.