97 results about "Thermocouple Wire" patented technology

The invention discloses a lithium battery internal temperature monitoring device and method and a lithium battery, the lithium battery internal temperature monitoring device comprises at least one thermocouple wire penetrating through at least one preset through hole in a battery cover plate, one end of the thermocouple wire is in contact with a battery cell in a shell, and the other end of the thermocouple wire is in contact with the battery cell in the shell. The other end is connected with data acquisition equipment outside the battery cover plate; the preset through hole is filled with a sealant solution, the interior of the preset through hole is filled with the sealant solution, and the thermocouple wire is fixed; sealing gaskets are arranged on the surfaces of the upper side and the lower side of the preset through hole, and the thermocouple wire penetrates through inner rings of the sealing gaskets. The temperature of different positions in the battery can be monitored in real time, the overall sealing performance of the battery can be guaranteed by designing the I-shaped sealing structure, the hollow insulating layer of the thermocouple wire can prevent electrolyte from flowing out along the thermode, and the safety of the lithium battery in the using process is guaranteed.

The application discloses a nuclear power steam generator thermocouple wire and fixing piece bending device. The device clamps and fixes two ends of the fixing piece respectively, inserts the thermocouple wire into the fixing piece, and realizes S-shaped bending of the thermocouple wire and the fixing piece by pressing one end of the fixing piece. In the bending process, the bending slider and the lower clamping plate of the hot end realize smooth guiding to the fixing piece, so that no indentation is caused on the hot end thermocouple wire, and the internal thermal sensing wire of the thermocouple wire is not damaged. The bending size can be determined by measuring the distance of the bending slider extending out of the shell.

The invention relates to a preparation method of a molybdenum-niobium thermocouple wire, according to the method, dispersion strengthening and toughening are adopted, the problem of uniformity of molybdenum-niobium alloy components is solved through a method of combining high-energy ball milling, vacuum gradient sintering and electron beam melting, and the prepared molybdenum-niobium alloy thermocouple wire is high in thermoelectric stability and precision through drawing and surface treatment. The high-temperature-resistant strength and the neutron irradiation-resistant performance are good.

The thermocouple temperature measuring device comprises a positive thermocouple wire, a negative thermocouple wire, a first protective tube and a wire connector, the positive thermo wire and the negative thermo wire are arranged in the first protective tube; one end of the positive thermo wire and one end of the negative thermo wire are connected to the wire connector, and the wire connector is used for connecting the positive thermo wire and the negative thermo wire to an external circuit; the other end of the positive thermo wire is connected with the other end of the negative thermo wire to form a combination end, and the combination end is coated with a high-temperature insulating layer. The thermocouple can replace a sheathed thermocouple, the detection cost is reduced, the risk of contact conduction with a furnace wire can be reduced, the safety can be improved, and the service life can be prolonged.

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 utility model relates to the field of welding equipment, in particular to an automatic butt-welding machine for a hot end of a thermocouple wire, which is characterized in that two wire discs are arranged at one end of a table body, a wire gathering pipe extending along the length direction of the table body is arranged in the middle of the table body, and two strands of wires are respectively released by the two wire discs and penetrate through the wire gathering pipe; a translation mechanism sliding in the length direction of the table body is arranged on the table body on the side, away from the wire disc, of the wire gathering pipe, and a welding head used for welding the free ends of the two strands of wires is fixedly installed on the translation mechanism; the translation mechanism is further provided with a wire drawing clamp used for clamping two strands of wires, the table body is provided with a lifting mechanism, and the lifting mechanism is provided with scissors used for cutting off the two strands of wires between the wire drawing clamp and the wire gathering pipe. The ends of the two strands of silk threads in the splayed shape are attached through axial movement of the silk gathering pipe, and butt welding is conducted on the ends of the two strands of silk threads through movement of the carbon rod.

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 invention relates to the technical field of automobile maintenance, and discloses a temperature detection device which comprises a clamping handle, a thermocouple wire, a metal sheet and a circuit assembly. The two clamping handles are connected in a hinged mode, each clamping handle comprises a clamping end, the clamping ends of the two clamping handles are oppositely arranged, the clamping end of at least one clamping handle is provided with a metal sheet, the metal sheet comprises a heat conduction face, the heat conduction face is located on the face, close to the other clamping handle, of the corresponding metal sheet, a through hole is formed in the metal sheet, and one end of the thermocouple wire penetrates through the through hole to be connected with the corresponding metal sheet. The other end of the thermocouple wire is electrically connected with the circuit assembly, and the circuit assembly is arranged on the clamping handle. Due to the arrangement of the through hole, one end of the thermocouple wire can be in direct contact with the pipeline, and the temperature of the pipeline is directly transmitted to the thermocouple wire. The temperature of the pipeline is detected through the other end of the thermocouple wire, a temperature signal is formed, the temperature signal is transmitted to the circuit assembly, and then the circuit assembly transmits the temperature signal to the server.

The utility model discloses a protective cap for a throwing type detection probe, and particularly relates to the technical field of metallurgy, which comprises a mounting plate, a thermocouple temperature sensing probe is mounted at the bottom of the mounting plate, a penetrating block is fixedly connected to the center of the top of the mounting plate, and a protective assembly is arranged on the outer surface of the thermocouple temperature sensing probe. A dismounting assembly is arranged at the top of the mounting plate, the protection assembly comprises two connecting plates, and two inserting holes are formed in the bottom of the mounting plate. According to the utility model, through the arrangement of the protection assembly, when the thermocouple temperature sensing probe is impacted by other objects, the spring is extruded to deform, and the impact force is buffered and offset, so that the thermocouple wire is prevented from being deformed, bent, twisted and even fractured due to direct stress; the temperature sensitive characteristic and the thermoelectric conversion function are maintained, the insulation layer of the probe can be protected from being damaged by external collision, and the good insulation performance is maintained.

The utility model relates to the technical field of thermocouples, in particular to an extended thermocouple and a high-temperature vacuum heating furnace, and the extended thermocouple comprises a pipe sleeve and a thermocouple wire. The pipe sleeve comprises a straight section and a first bent section, the first bent section is arranged at one end of the straight section, and a temperature measuring point is arranged at the end point, deviating from the straight section, of the first bent section; and the thermocouple wire is arranged to the temperature measuring point along the straight section and the first bent section. The extended thermocouple and the high-temperature vacuum heating furnace provided by the utility model can effectively increase the length of the thermocouple wire in the temperature measurement container, thereby reducing the too fast heat loss from the temperature measurement point of the thermocouple to the external binding post, enabling the temperature measured by the temperature measurement point to be closer to the actual temperature, and improving the measurement precision of the measurement end of the thermocouple.

The present invention relates to a temperature measuring device comprising a measuring element (12; 112), a connection element (14; 114) having a housing, a line arrangement (16; 116), the line arrangement (16; 116) at least in sections comprising connection lines (46; 146), at least one thermocouple having at least two different thermocouple wires (32; 132; 232, 236a, 236b, 236c), the two thermocouple wires (32; 132; 232, 236a, 236b, 236c) being connected to one another at a measuring point and in each case so as to form a connecting point with a connection line, the measuring point being provided in the measuring element (12; 112) and the connecting points being located inside the housing of the connection element (14; 114), the line arrangement (16; 116) having a first line portion (40; 140) with an outer sheath (44; 144), in which the at least two connection lines (46; 146) are routed, the first line portion being fixedly connected to the connection element (14; 114) in the region of a first end and the interior of said first line portion being filled with an electrically insulating, high-temperature-resistant material at least in the region of the first end.

This utility model relates to a thermocouple fixing structure, including a thermocouple wire groove disposed on any surface of a plate. A tail fixing position is provided at one end of the thermocouple wire groove, and a probe fixing position is provided at the remaining end of the thermocouple wire groove. Several wire-clamping blocks are respectively provided on both sides of the thermocouple wire groove, following its direction. The advantages are: this structure can be designed into any curved shape and laid on the plate surface according to actual temperature measurement needs, breaking through the strict limitations of traditional fixing methods on the position and path of the temperature measurement point; the tail fixing position, probe fixing position, and wire-clamping blocks constitute a multi-level fixing system. During installation, the thermocouple wire is simply pressed into the thermocouple wire groove to complete the installation, effectively solving the problems of complex installation and insecure fixing in existing technologies, and achieving convenient, reliable, and accurate surface temperature measurement.

The invention discloses a temperature acquisition method for a soft package battery, which comprises the following steps of: 1, preprocessing the soft package battery, implanting a thermocouple wire into a battery cell, and monitoring the internal temperature of the soft package battery through the thermocouple wire; step 2, inserting a plurality of shelving steps in the charging / discharging process so as to eliminate the influence of current crosstalk; in the shelving step, external current is cut off, so that the interior of the soft package battery enters a non-current state; and 3, in each shelving step, collecting internal temperature data of the soft package battery by taking 5 seconds as a reference duration to directly monitor the internal temperature of the battery cell, breaking through the bottlenecks of internal-external temperature difference and response delay, realizing high-precision, high-efficiency and low-cost monitoring of the internal temperature of the battery, and remarkably improving the safety and the service life of the battery.

This utility model relates to the field of kitchenware testing technology, and in particular to a fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker. The device includes a fixing frame, which comprises an adjustable-length support leg, a position indicator circle, a vertical limiting rod, a horizontal drag ring, and an adjusting buckle. The adjustable-length support leg is disposed on the position indicator circle and is used to fix and support the fixing frame while maintaining contact with the bottom surface of the inner pot. The vertical limiting rod is detachably connected to the adjustable-length support leg. One end of the adjusting buckle is fixedly connected to the horizontal drag ring, and the other end is slidably sleeved on the vertical limiting rod, used to adjust and lock the position of the horizontal drag ring in the vertical direction. This utility model solves the problems existing in the prior art, such as the inability to fix the position of the wireless temperature and pressure recorder in the inner pot, large test result errors caused by using other wired thermocouples, low test efficiency, easy breakage of thermocouple wires, and easy impact on the sealing performance of the electric pressure cooker.

The utility model belongs to the technical field of data acquisition instrument accessories, and particularly relates to an installation assembly of a data acquisition instrument, which comprises a top seat, a rear baffle plate, a front baffle plate and a plurality of thermocouple plugs, the top end of the rear baffle is fixedly connected with the top base, the bottom end of the rear baffle extends inwards to be provided with a bottom baffle, the top end of the front baffle is hinged to the bottom base, and a magnetic attraction device is arranged between the bottom end of the front baffle and the bottom baffle. A plurality of thermocouple sockets are installed and fixed through the top seat, the bottom baffle and the front baffle are closed and fixed through the magnetic attraction device, the rear baffle, the bottom baffle and the front baffle act on the data acquisition instrument at the same time, and in the using process, the electric plugging end of the data acquisition instrument and the wiring end of the thermocouple female end can be relatively static; and on the other hand, by plugging and unplugging the thermocouple plug, the number of detection channels is increased or decreased, and the application range of the device is widened.

A thermocouple temperature acquisition device is adapted to connect a thermocouple wire. The thermocouple temperature acquisition device includes a casing, a circuit board, a wiring assembly and a temperature sensing assembly. The casing is formed with a receiving space. The circuit board is disposed in the receiving space. The wiring assembly is disposed on the circuit board and partially exposed outside the casing. The part of the wiring assembly exposed outside the casing is used to connect the thermocouple wire and forms a cold end with the thermocouple wire. The temperature sensing assembly includes a temperature sensor and a heat conducting element. The temperature sensor is electrically connected to the circuit board and located in the receiving space. The heat conducting element is disposed on the temperature sensor and partially exposed outside the casing. The heat conducting element is adjacent to the part of the wiring assembly exposed outside the casing. The temperature sensor measures the temperature of the cold end through the heat conducting element.

The invention relates to the technical field of aero-engine testing, in particular to a shunting ring wall temperature testing wiring process and a testing structure. The invention provides a shunting ring wall temperature test wiring process. The shunting ring wall temperature test wiring process comprises the following steps of S1, forming a lead through hole and a lead groove in a shunting ring; s2, preparing a test sensor with a bare thermocouple wire end part; s3, a test sensor is installed in the lead wire groove, and a thermo wire of the test sensor penetrates through the lead wire through hole; and S4, covering a pressing sheet above the lead groove, and fixing the pressing sheet. A through hole and groove structure used for temperature testing and lead connection is designed on the thin-wall wall surface of the shunting ring, the groove is filled with the heat-conducting gel, and the sheathed thermocouple with the bare thermocouple wires is combined for wall temperature testing, so that the response speed during wall temperature testing is remarkably increased, and the accuracy of wall surface temperature testing of the shunting ring is ensured.

The utility model relates to the technical field of thermocouple wire measurement, in particular to a thermocouple wire take-up device, which comprises a spool, the spool comprises a cylindrical tube and guard plates fixed on two sides of the cylindrical tube, two ends of the cylindrical tube are respectively and rotatably provided with a left support shaft and a right support shaft, one end of the left support shaft is connected with a volute spiral spring, and the other end of the left support shaft is connected with a right support shaft. A conductive slip ring is mounted at one end of the right supporting shaft and comprises a slip ring stator and a slip ring rotor, the slip ring stator is connected with the protective plate, and the slip ring rotor is fixed to the right supporting shaft; a thermocouple body is fixed on the side wall of the cylindrical tube, the input end of the thermocouple body is connected with an input wire, the output end of the thermocouple body is connected with a wire, the wire is connected with the slip ring stator, the slip ring rotor is connected with an output wire, and the input wire is wound on the cylindrical tube. The thermocouple wire take-up device can take up the thermocouple wire actively, and meanwhile the thermocouple wire cannot be bent in the take-up process.

The invention relates to the technical field of stuffing sand testing, and discloses a method for testing the heat-conducting property of stuffing sand. The method comprises the steps that S1, heat flow calibration is conducted, specifically, a test furnace body is built and comprises an air valve, a hydraulic rod, a furnace body upper cover, a thermocouple, a high-temperature-resistant crucible, a heat insulation and heat preservation furnace body, a heating thermocouple wire, a hydraulic control system, an air compression control system and a temperature display system, and the lower side and the horizontal periphery of the heating thermocouple wire are surrounded by the heat insulation and heat preservation furnace body; the high-temperature-resistant crucible is placed on the heating thermocouple wire, four thermocouple grooves extending inwards are formed in the inner side of the cylinder wall of the high-temperature-resistant crucible, a certain amount of a stuffing sand sample to be tested is contained in the high-temperature-resistant crucible, and a furnace body upper cover with an air valve and a hydraulic rod covers the high-temperature-resistant crucible. A sealing gasket is arranged at the joint of the furnace body upper cover and the hydraulic rod to guarantee airtightness. The problems that an existing device is large in testing error, small in application range and the like are solved.

The application discloses an arc-shaped rapid winding device for temperature measuring thermocouples used in arc wind tunnel experiments, which comprises a thermocouple wire shaft fixator and an arc-shaped winding handle. A pair of thermocouple wire shafts are placed on the thermocouple wire shaft fixator, and the thermocouples on the two wire shafts are combined and led out. The arc-shaped winding handle comprises arc-shaped winding end blocks, movable horizontal support rods, movable vertical support rods and a disc fixing seat. One end of each of the two movable horizontal support rods is movably connected with the disc fixing seat, and the other end of each of the two movable horizontal support rods is fixedly connected with two arc-shaped winding end blocks. The two arc-shaped winding end blocks are vertically placed and arc-shaped oppositely, and the combined thermocouples are wound on the outer surfaces of the two arc-shaped winding end blocks. The two ends of the movable vertical support rods are movably connected with the two arc-shaped winding end blocks. Through the application of the device, the problems of knotting and length difference of the finished coils after winding can be solved, and the finished coils are easy to take out.

The utility model discloses a nickel chromium-nickel silicon armored thermocouple wire processing device, which relates to the technical field of armored thermocouple wire processing, and comprises a base, the upper surface of the base is fixedly provided with a fixing frame, the surface of the fixing frame is rotatably connected with a cable winding disc, the front surface of the fixing frame is fixedly connected with two extension plates, and the extension plates are fixedly connected with the cable winding disc. And a horizontal lead screw is rotationally connected between the two extension plates, the surface of the horizontal lead screw is in threaded connection with a moving platform, and a dirt removing mechanism is arranged on the upper surface of the moving platform. According to the utility model, through the arrangement of the decontamination mechanism, when an armored thermocouple wire is wound, an armored cable can pass through the space between the two guide cleaning rollers in the limiting frame, so that the surface of the cable can be cleaned and decontaminated by sponge sleeves on the surfaces of the guide cleaning rollers in the cable winding process; and meanwhile, the guide cleaning roller can be used for guiding and limiting the cable, so that the cable is smoother in the winding process, and the cable winding efficiency is improved.

The utility model discloses a high-performance multipoint temperature measurement sheathed thermocouple, which relates to the technical field of thermocouples and comprises a junction box, a first outer ring color label and a first inner ring color label are respectively arranged above the outer surface of the junction box, and a second outer ring color label and a second inner ring color label are respectively arranged below the outer surface of the junction box. According to the utility model, through the arrangement of the wire holder, the pressing screws and the flat cable seat, when a certain thermocouple wire is damaged, the corresponding pressing screw is unscrewed, then the damaged armored sleeve, the damaged insulating heat-conducting layer and the damaged thermocouple wire can be pulled out, and then a new armored sleeve, a new insulating heat-conducting layer and a new thermocouple wire are inserted into the flat cable seat. Through the arrangement of the wire arrangement seat, thermocouple wires can be conveniently arranged in order, the thermocouple wires are prevented from being wound and knotted in the junction box to influence the disassembly and assembly, and then the corresponding pressing screws are screwed down, so that the thermocouple wires are pressed in the wire arrangement seat to switch on the current; the damaged thermocouple wire can be conveniently and independently replaced, and the operation is simple and convenient.

The application discloses a heat flow sensor welding device, which comprises a bottom plate, a front element welding base and a back element welding base arranged on the bottom plate; the upper surface of the front element welding base is provided with a U-shaped groove and a front element pressing assembly; the U-shaped groove is provided with a U-shaped groove through hole, and the front element pressing assembly is provided with a plug-in part which can be inserted into the U-shaped groove through hole; the back element welding base comprises a bracket, an electromagnet and a back element pressing assembly; the back element pressing assembly is magnetically attached to the electromagnet after the electromagnet is electrified. The application can realize positioning and pressing of the front thermocouple wire, the sheet and the back thermocouple wire during welding of the heat flow sensor, and can ensure consistency, symmetry and reliability of the sheet and the thermocouple wire welded on the heat flow sensor.

A high-precision explosion-proof multi-point armored thermocouple comprises, from inside to outside, a thermocouple wire, an inner sleeve, insulating material and an outer sleeve, a mounting shell fixedly installed on the outer sleeve, an explosion-proof shell mounted on the mounting shell, a bracket one and a bracket two fixedly installed in the mounting shell, a rotating frame rotatably installed on the bracket one, a roller rotatably installed on the bracket two, a mounting cylinder coaxially sleeved on the outer sleeve, a sliding cylinder and a threaded cylinder coaxially and slidably installed on the mounting cylinder and fixedly connected with each other, a limiting block fixedly installed on the mounting cylinder and intermittently clamping the threaded cylinder, a mounting connecting plate rotatably installed on the mounting cylinder and elastically connected with the threaded cylinder, and a buckle mounted on the sliding cylinder and intermittently clamping the mounting connecting plate; the thermocouple wire is coiled in the mounting shell; the measuring end is freely movable, two installation modes of threaded installation and fixed plate installation are provided, and the installation position of a common armored thermocouple can be assisted in positioning.

The invention discloses a thermocouple sensor used in a vacuum environment. The thermocouple sensor comprises a sheathed thermocouple, a crimping sleeve, a flexible shielding cable and a sealing interface piece, a shielding net at the first end of the flexible shielding cable is stripped out and reversely sleeved on the flexible shielding cable, a cable core at the first end of the flexible shielding cable is correspondingly connected with a thermocouple wire of the armored thermocouple, and the joint and the shielding net reversely sleeved on the flexible shielding cable are tightly pressed and wrapped by the crimping sleeve. The crimping sleeve is filled with ceramic glaze formed by high-temperature firing; the sealing interface piece is installed on the chamber wall of the vacuum chamber, and the second end of the flexible shielding cable penetrates through the sealing interface piece to lead to the outside of the vacuum chamber; the sealing connector piece is filled with ceramic glaze formed through high-temperature firing. The thermocouple sensor provided by the invention can reliably work under the working condition of a vacuum environment, and has a relatively long service life.

The invention discloses an anti-coking heat exchange probe, and relates to the technical field of probes, the anti-coking heat exchange probe comprises a base, a heat exchange probe, a cleaning assembly and a driving assembly, the heat exchange probe is provided with a thermocouple wire used for measuring temperature, and the heat exchange probe is U-shaped and comprises a first probe section, a second probe section and a third probe section which are connected in sequence; the first probe section and the third probe section are arranged in parallel and connected with the base, the cleaning assembly comprises a first cleaning ring and a second cleaning ring, the first cleaning ring slidably sleeves the first probe section, the second cleaning ring slidably sleeves the third probe section, and the driving assembly is used for driving the first cleaning ring to move to clean ash on the surface of the first probe section. The second cleaning ring is driven to move to clean ash on the surface of the third probe section. According to the anti-coking heat exchange probe, ash attached to the surface of the probe is cleaned, coking is avoided, the probe can be continuously used, and the measurement accuracy and the measurement efficiency of the probe are improved.

The utility model discloses a temperature detection device. The temperature detection device comprises a shell assembly, a circuit board, a temperature probe, a switch piece and a rotating shaft piece. A display screen is arranged on the shell assembly, and the circuit board is arranged in the shell assembly. The temperature probe is provided with a thermocouple wire, and the switch piece is electrically connected with the display screen. The temperature probe is rotatably connected with the shell assembly through the rotating shaft piece, and the temperature probe can rotate relative to the shell assembly to achieve stretching and folding. A mounting cavity is formed by the rotating shaft piece and / or the shell assembly, a partition part is arranged in the mounting cavity, and the partition part divides the mounting cavity into a first cavity body and a second cavity body. The thermocouple wire extends through the first cavity to be electrically connected with the circuit board, and the switch piece is arranged in the second cavity. The thermocouple wire and the switch piece are respectively located in the first cavity and the second cavity which are isolated from each other, so that the thermocouple wire and the switch piece do not interfere with each other when a user rotates the temperature probe, and the service life of the temperature detection device is prolonged.

The application discloses a kind of fast response multi-point temperature measuring device suitable for high temperature liquid metal, belong to measuring device technical field.It includes: temperature measuring device and fixed sealing device;Temperature measuring device includes thermocouple tube bundle, thermocouple wire positioning cone and thermocouple tube bundle side wall welding section;Fixed sealing device includes fixed nut, sealing ring, connecting nut, upper method flange, flange gasket, lower method flange.The sealing effect of the device is good, including two forms of flange sealing and sleeve sealing, wherein the flange position can realize the detachable demand of temperature measuring device;Thermocouple wire probe is directly contacted with fluid, and the temperature measuring result is more accurate, and the response time of thermocouple wire can be determined according to actual demand;Temperature measuring element main body is in the inside of tube bundle, and temperature measuring device will not be damaged due to large fluid flow;In addition, thermocouple wire is used as temperature measuring element, compared with armored thermocouple, cost can be greatly reduced.

The invention belongs to the technical field of linear temperature-sensitive fire detection, and particularly relates to a thermocouple type linear temperature-sensitive detector and a temperature monitoring method. The thermocouple type linear temperature-sensitive detector comprises a signal processing device and a temperature-sensitive cable; the temperature sensing cable is composed of a first thermocouple wire body and a second thermocouple wire body which are arranged in parallel; a plurality of diodes are connected in parallel between the first thermocouple wire body and the second thermocouple wire body, so that positive electrode pins of the diodes are welded with the first thermocouple wire body, and negative electrode pins of the diodes are welded with the second thermocouple wire body to form a plurality of thermocouple nodes; the first thermocouple wire body and the second thermocouple wire body are sleeved with an insulating barrier material layer. When any thermocouple node is heated, the signal processing device detects and converts a millivolt voltage value caused by thermoelectric force, makes a judgment according to a set alarm temperature threshold value, and outputs a fire alarm signal. According to the invention, the alarm temperature can be set at will within the range of 60-180 DEG C, the multi-stage temperature alarm threshold is supported, and the customization requirements of different application scenes are met.

The utility model relates to a temperature measuring structure of a vacuum furnace. The flange is arranged on a furnace body; the pressing nuts are uniformly mounted on the flange; the pressing pad is matched with each pressing nut for use; the sealing ring is sleeved on each pressing nut and pressing pad assembly; the temperature measuring thermocouple wires penetrate through the centers of the pressing nuts and the pressing pads; the temperature measuring flange seat is connected to the furnace body; the fixing piece is used for firmly connecting the flange with the temperature measuring flange seat; the temperature measuring frame is placed in the furnace body; the flange is provided with nine temperature measuring thermocouple wires, eight of the nine temperature measuring thermocouple wires are respectively distributed at eight vertex positions of the temperature measuring frame to form symmetrical distribution, and one of the temperature measuring thermocouple wires is located at the center in the temperature measuring frame. The technical problem that in the prior art, when an old-fashioned temperature measuring structure is used for coping with a complex thermal environment in a furnace body, the heating condition of all areas of a workpiece in the heat treatment process cannot be accurately measured, and the measured temperature error is large is solved.