28 results about "Thermowell" patented technology

A temperature probe is mountable within a thermowell having an inner bore having an end shape at an end. The temperature probe includes a probe body configured to be mounted within a thermowell. A temperature sensitive element is disposed within the probe body and has an electrical characteristic that varies with temperature. An end cap is connected to the probe body and has a surface profile shaped to match the end shape of the bore of the thermowell. A temperature measurement system is also provided that employs a thermowell and a temperature probe having a geometrically matching end cap.

The utility model relates to the technical field of pressure vessel manufacturing, in particular to a thermocouple sleeve circular seam installing and welding structure, which comprises a first sleeve and a second sleeve which have the same inner diameter and are coaxial, a positioning ring is formed at the end part of the first sleeve, an annular positioning groove is arranged on the inner wall of the end part of the second sleeve, and the positioning ring is inserted into the positioning groove. A gap is reserved between the end face of the positioning ring and the positioning groove in the axial direction. A first inclined face is formed at the joint of the outer wall of the first sleeve and the positioning ring, a second inclined face is formed at the end of the second sleeve, and the first inclined face, the outer wall of the positioning ring and the second inclined face define an annular groove flaring outwards. Compared with the prior art, the device has the advantages of simplicity in operation, easiness in accurate positioning and assembling, material cost saving, high universality and the like. And after welding, the inner wall of the circumferential weld is formed flatly and has no weld reinforcement, the inner diameter does not need to additionally treat the reinforcement, the inner diameter size of the sleeve is effectively controlled, and the thermocouple can penetrate smoothly and unobstructed when inserted and assembled.

The invention relates to an extra-high voltage bushing special hot spot temperature rise test device and an installation method. A support underframe is arranged in a triangular support in an angle-adjustable manner, an oil tank is arranged on the support underframe, a bushing is arranged in a closed bracket, the lower end of the bushing is inserted into the oil tank, and the lower end of the closed bracket is installed on the oil tank; the front end of the closed bracket is supported by an adjusting supporting frame, a heating plate is arranged on the lower side of the closed bracket, a bracket thermocouple is arranged on the upper side of the closed bracket, a first thermocouple is arranged on the outer wall of the sleeve, a second thermocouple is arranged in the sleeve, a sealing adapter plate is arranged at the upper end of the sleeve, and the thermocouples on the upper side of the outer wall of the sleeve and in the sleeve are connected with the sealing adapter plate through signal lines. The outer side of the sealing adapter plate is connected with a temperature itinerant detector through a cable, each thermocouple on the lower side of the outer wall of the sleeve is connected with a second cable at the lower end of the sleeve through a signal line, and the second cable is connected with the temperature itinerant detector. According to the invention, temperature detection is carried out inside and outside the sleeve, and the performance parameters of the sleeve body can be reflected more truly.

The utility model discloses a high -power electric heater for thick oil development, including stainless steel outer sleeve pipe, three heating cables and thermocouple sleeve pipe are sheathed in the stainless steel outer sleeve pipe, and thermocouple assembly is sheathed in the thermocouple sleeve pipe, and the end of stainless steel outer sleeve pipe is welded with sieve tube, and the end of sieve tube is connected with the pipe through the connecting ring away from stainless steel outer sleeve pipe, and the end of pipe is connected with the plug away from the connecting ring, and thermocouple sleeve pipe and three heating cables all pass sieve tube, connecting ring and pipe in proper order. The utility model heating part adopts stainless steel mineral insulation heating cable, and the heating is even, and the heating core wire adopts nickel chromium alloy, and the heat output is big, and the service life is long, and three stainless steel mineral insulation heating cable tail stars, and the electrical connection is convenient, and the electrical control system is simplified, and contains three thermocouples, can monitor the temperature change of three positions, adjusts voltage in time, guarantees that the heating temperature satisfies the requirement, and the heater tail has sieve tube, and the steam is convenient to flow out.

A thermowell includes a process mount and a cylindrical member. The process mount is configured to be mounted to the process intruder. The cylindrical member is configured to be exposed to a process fluid and includes a plurality of apertures extending in the cylindrical member. Each aperture is configured to receive a separate temperature sensor assembly. A redundant process fluid temperature measurement system is also provided.

The application relates to a thermocouple automatic casing process method and belongs to the field of high-temperature-resistant thermocouples. The method comprises the following steps: S1, feeding and straightening a thermocouple wire and cutting the thermocouple wire into a fixed length; S2, feeding single-hole ceramic tubes and displacing a plurality of the single-hole ceramic tubes to a perforating station; S3, threading the thermocouple wire in step S1 through the plurality of single-hole ceramic tubes in step S2 to form a single-group casing thermocouple wire; S4, repeating steps S1-S3 to form two groups of casing thermocouple wires; S5, feeding double-hole ceramic tubes and adjusting the postures of the double-hole ceramic tubes; S6, threading the two groups of casing thermocouple wires in step S4 through the double-hole ceramic tubes in step S5; and S7, welding the two groups of casing thermocouple wires in step S6 close to one end of the double-hole ceramic tubes to complete thermocouple casing. The application is favorable for realizing automatic and efficient operation of thermocouple wire casing and ensuring the consistency of thermocouple processing.

The invention relates to a thermometer pipe orifice structure capable of adapting to different process measuring point requirements, which comprises a flange cover, a connecting flange, a pipe connecting flange and an inward extending pipe, and is characterized in that the top of the inward extending pipe is welded with the connecting flange, and the bottom of the inward extending pipe is provided with a thread adjusting mechanism; the thread adjusting mechanism comprises a bottom plate, a sleeve, a sealing plate, a stud, a nut and a threaded connector, the sleeve is welded to the upper portion of the bottom plate, the sealing plate is welded to the upper portion of the sleeve, a through hole is formed in the center of the sealing plate, the lower end of the stud penetrates through the through hole of the sealing plate and then is matched with the nut, the upper end of the stud is welded to the threaded connector, and the lower end of the stud is matched with the threaded connector. The threaded connector is provided with a containing cavity from top to bottom in a concave mode, the bottom of the inward extending pipe is contained in the containing cavity, external threads are arranged at the bottom of the inward extending pipe, internal threads matched with the external threads at the bottom of the inward extending pipe are arranged in the containing cavity of the threaded connector, and therefore the insertion depth of the thermometer can be adjusted. Therefore, different process measuring point requirements can be met.

The utility model belongs to the technical field of thermotechnical instrument pipe installation, and particularly relates to a thermotechnical instrument pipe convenient to install, which comprises a pipeline I and a pipeline II, the outer wall of the pipeline I is fixedly connected with an installation cylinder, the outer wall of the pipeline II is fixedly connected with a fixed cylinder, one side of the outer wall of the installation cylinder is slidably connected with the inner wall of the fixed cylinder, and the other side of the installation cylinder is slidably connected with the inner wall of the fixed cylinder. The adjacent ends of the first pipeline and the second pipeline correspond to each other, a rotating disc is rotatably connected to the inner wall of the mounting cylinder, a connecting groove is formed in one side of the rotating disc, and a sliding rod is slidably connected to the inner wall of the connecting groove. The sliding rod slides in the connecting groove by rotating the rotating disc, the sliding rod slides in the guide groove under the cooperation of the guide groove, and then the position of the clamping rod is adjusted, so that the clamping rod can be clamped into the clamping groove, the adjustment of the pipeline connecting position is completed, the pipeline is more convenient to install, meanwhile, the stability and the safety are enhanced, and the practicability is high. And the problems of looseness and leakage easily caused by threaded connection are avoided.

A temperature probe is mountable within a thermowell having an internal bore with an end having an end shape. The temperature probe includes a probe body configured to be mounted within the thermowell. A temperature sensitive element is disposed within the probe body and has an electrical characteristic that varies with temperature. An end cap is coupled to the probe body and has a surface contour that is shaped to match the end shape of the bore of the thermowell. A temperature measurement system employing the thermowell and the temperature probe having a geometrically matching end cap is also provided.

The utility model relates to the technical field of temperature sensors, in particular to a temperature sensor convenient to install, which comprises a junction box, a vertical thermocouple sleeve is fixedly connected to the middle of the bottom end of the junction box, a transverse fixing disc is fixedly connected to the upper end of the middle of the thermocouple sleeve, and a distance adjusting mechanism is arranged between the fixing disc and the thermocouple sleeve. A box cover is in threaded connection with the top end of the junction box, a transverse wiring pipe is integrally formed on the right side of the junction box, and a sealing head is in threaded connection with the right side of the wiring pipe. Through the threaded fit between the movable sleeve and the threaded groove and the sliding fit between the limiting ring and the limiting groove, the distance between the mounting sleeves is adjusted, the effect of quickly adapting to different mounting hole distances is achieved, and the problem that in the prior art, mounting holes need to be machined again due to hole position deviation is solved.

The application provides a thermocouple sheath and a thermocouple, and relates to the technical field of thermocouples. The thermocouple sheath comprises a measuring part sheath, the measuring part sheath comprises a straight pipe section and a tapered pipe section connected to the lower end of the straight pipe section, the tapered pipe section is used for penetrating through a measuring hole formed on the pipe wall of a to-be-measured pipeline and extending into the to-be-measured pipeline to measure the temperature of the medium in the to-be-measured pipeline; a first boss is arranged at the connection position of the straight pipe section and the tapered pipe section, the first boss is arranged in parallel with the plane where the radial direction of the measuring hole is located, and the first boss is in interference fit with the measuring hole. By arranging the first boss and in interference fit with the measuring hole, the gap between the sheath and the measuring hole can be compensated, the vibration of the sheath caused by high-speed airflow can be effectively eliminated, the risk of cracks of the sheath caused by vibration can be reduced, and the service life is prolonged. The thermocouple with the above-mentioned thermocouple sheath has a long service life and wide applicability.

The invention relates to the technical field of sleeve cutting, and discloses a boiler bed temperature wear-resistant thermocouple sleeve cutting machine which comprises a workbench and a clamp installed close to the feeding end of a workpiece, a compensation piece is arranged at the overhanging end of the workpiece, and a fixing assembly is arranged on the side, close to the workpiece, of the compensation piece. The fixing assembly comprises a first sliding block, the two sides of the first sliding block are inclined planes, fixing pieces are arranged on the two sides of the first sliding block, second sliding grooves are formed in the sides, close to each other, of the two fixing pieces, and the two ends of the first sliding block are located in the second sliding grooves correspondingly and are in sliding fit with the second sliding grooves; a first sliding groove is formed in the side, close to the fixing piece, of the compensation piece. Through arrangement of the fixing assembly and cooperation of the limiting assembly, the overhanging end of the workpiece can be automatically clamped, meanwhile, the electric push rod drives the two sets of fixing blocks to move to clamp the position, close to a cut-off point, of the workpiece, the cutting precision is improved, and the product quality is improved.

A process fluid multivariable measurement system is provided. The multivariable measurement system includes a thermowell configured to be coupled to a process fluid pipeline and extend through a wall of the process fluid pipeline. The system also includes a temperature sensor assembly disposed within the thermowell, the temperature sensor assembly having at least one temperature sensitive element disposed therein. The system also includes a pressure sensor assembly coupled to the thermowell, the pressure sensor assembly having at least one pressure sensitive element disposed therein. The system also includes transmitter circuitry communicatively coupled to the temperature sensor assembly and the pressure sensor assembly, the transmitter circuitry configured to receive a temperature sensor signal from the at least one temperature sensitive element and responsively generate a temperature measurement output based on the temperature sensor signal. The transmitter circuitry is further configured to receive a pressure sensor signal from the at least one pressure sensitive element and responsively generate a pressure measurement output based on the pressure sensor signal.

The application discloses a fixed fluidized bed catalyst evaluation method and device for cracking crude oil to obtain olefins, and the device comprises a fixed fluidized bed reactor which is composed of a settling section, a reaction section and a dispersion section from top to bottom; a flange is arranged at the top of the fixed fluidized bed reactor, and an additive pipe, a thermocouple sleeve and a reaction oil gas outlet pipe arranged on the flange are in communication with the inside of the fixed fluidized bed reactor; the settling section is in the shape of a circular truncated cone with a small top and a large bottom; the reaction section is in the shape of an inverted circular truncated cone with a large top and a small bottom; a reinforced distribution ring is arranged in the center of the reaction section; a crude oil inlet is vertically inserted into the bottom of the fixed fluidized bed reactor and is located at the center of the bottom of the fixed fluidized bed reactor; and the outlet is arranged at the bottom of the fixed fluidized bed reactor. The method and device have good repeatability of test data, accurate temperature control, a wide adjustment operation range and the ability to adapt to the evaluation test of catalytic cracking reaction performance under high-temperature conditions.

Rheological measurement systems for use with systems including pressurized polymer melts and / or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard ½-20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system.

The present invention relates to a thermocouple sleeve structure for a molten salt reactor, which comprises a first sleeve, a pressure regulating device, a first head and a thermocouple. Among them, the first sleeve has a side wall, the bottom end of the side wall is hermetically connected to the molten salt pipeline, the top end of the side wall is sealed by the first head, the first sleeve further comprises a high-temperature sealing salt filled in the side wall for achieving self-sealing, and the first sleeve further comprises an inert gas filled in the side wall above the high-temperature sealing salt. The pressure regulating device is installed on the side wall to regulate the pressure of the inert gas. The thermocouple sequentially passes through the first head, the inert gas and the high-temperature sealing salt and extends into the molten salt pipeline to directly measure the temperature of the molten salt. According to the thermocouple sleeve structure of the molten salt reactor of the present invention, through the self-sealing of the molten salt, the thermocouple can directly measure the temperature of the molten salt, solve the sealing problem of the high-temperature molten salt temperature measurement, and has the advantages of flexible temperature measurement points and timely temperature measurement feedback.

The utility model discloses a fused salt tank heat insulation supporting structure, which relates to the field of fused salt storage infrastructure construction and comprises a broken stone hardcore under the ground of a salt tank area, CFG piles are embedded under the broken stone hardcore to enhance the bearing capacity of a foundation, and a ring wall is arranged on the outer side of the broken stone hardcore. A concrete bottom plate is arranged on the broken stone hardcore, a cooling air pipe is arranged in the broken stone hardcore to prevent overheating, shale ceramsite is arranged above the broken stone hardcore, a refractory ceramic fiber blanket is laid at a groove and is filled with a refractory pouring material, a sand cushion layer is arranged at a non-groove position for leveling, and a gap is reserved between the concrete bottom plate and the annular wall and is sealed. A steel reinforcement framework is arranged in the refractory castable, a flexible waterproof sleeve is sleeved at the position of a cooling air pipe penetrating through a ring wall, a thermocouple sleeve is pre-embedded in a concrete bottom plate, a drainage hole is formed in the ring wall, and the bottom plate adopts double-layer two-way reinforcement. The stability is enhanced through the CFG piles and the collaborative stress design, the heat insulation performance is improved through the composite heat insulation system, durability is guaranteed through multiple measures, the deformation adaptability is improved through reserved gaps and sealing, and the maintenance frequency and cost are reduced.

The utility model relates to the technical field of temperature sensors, in particular to an anti-separation temperature sensor, which comprises a junction box, a vertical thermocouple sleeve fixedly connected to the middle of the bottom end of the junction box, a flange movably mounted outside the thermocouple sleeve, and a mounting sleeve fixedly connected to the upper end of the flange. An anti-falling mechanism is arranged between the mounting sleeve and the thermowell; a box cover is in threaded connection with the top end of the junction box, a transverse cable sealing pipe is integrally formed on the right side of the junction box, and a sealing head is in threaded connection with the right side of the cable sealing pipe. According to the utility model, through the rigid meshing cooperation of the triangular clamping head and the clamping groove and the elastic reset effect of the second spring, the reliable anti-falling effect in a high-frequency vibration environment is realized, and the problem of loosening or falling of the sensor caused by continuous mechanical vibration in the prior art is effectively solved.

The application provides an anti-ablation performance testing device, which comprises a plasma gun (3), a testing table (4), a heat flow density calibration device (6) and a testing auxiliary tool (7). The heat flow density calibration device (6) comprises a heated end cover (8), a first water outlet straight pipe (9), a water inlet pipe (10), a water outlet elbow pipe (11), a turbine flowmeter (13), a first water inlet nozzle (14), a first water outlet nozzle (15), a second water outlet straight pipe (16), a first sealing end cover (19) and a second sealing end cover (20). The testing auxiliary tool (7) comprises a flame baffle (21), an outer water cooling pipe (24), an inner water cooling pipe (25), a second water outlet nozzle (26), a second water inlet nozzle (27), a thermocouple sleeve (29) and a sleeve plug (31). The device uses a plasma flame as a heat source, can effectively evaluate the anti-ablation performance of superhigh / high melting point materials and avoids ablation, melting and other problems of the tool in a long-term ablation process.

The utility model relates to an air inlet pipe mounting tool which comprises a tool pipe, the tool pipe comprises a connector, a sleeve and an extension rod, one end of the sleeve is detachably connected with one end of the extension rod through the connector, the sleeve is used for allowing part of an air inlet pipe to be inserted, and the extension rod is detachably connected with the connector. The connector is used for being connected with the end, stretching into the sleeve, of the air inlet pipe in an abutting mode. The gas inlet pipe can push the tool pipe to retreat out of the furnace tube through the connector, and the furnace tube can guide the gas inlet pipe in the retreating process, so that the gas inlet pipe can sequentially penetrate through the hanging rings, and meanwhile, the gas inlet pipe can be prevented from poking the hanging rings or damaging quartz pieces such as the furnace tube and a thermocouple sleeve.

The present invention relates to a reactor maintenance method, comprising: removing a worn thermowell from a tube socket; securing a compensating ring to a seat surface of the tube socket, and installing a new thermowell in the tube socket, such that the upper end surface of the compensating ring abuts against the outer contact surface of the upper end of the thermowell; or securing the compensating ring to the outer contact surface of the upper end of the new thermowell, and installing both together in the tube socket. The above-mentioned reactor maintenance method avoids replacing the tube socket or even the entire top cover, is easy to operate, and the compensating ring compensates for the worn portion of the tube socket, allowing the new thermowell to be in its working position, ensuring that the reactor pressure vessel can operate normally.

A thermowell assembly is provided for measuring a temperature of a process fluid. The thermowell assembly includes an elongate thermowell body configured to be mounted to a process vessel and extend into a process fluid contained in the process vessel. The elongate bore extends along a length of the elongate thermowell body from a proximal end of the elongate thermowell body proximate a wall of the process vessel to a sealed distal end of the elongate thermowell body located in the process fluid. The side bore extends from an exterior of the thermowell assembly to the elongated bore. The side aperture is located outside the process vessel. The verification valve includes an inlet external to the thermowell assembly coupled to the side bore and further includes an outlet. The verification valve allows an operator to verify the presence of the process fluid in the elongated bore by opening the verification valve and observing the process fluid at the outlet of the verification valve.

A temperature probe (200) is mountable within a thermowell (106, 220) having an internal bore with an end (110) having an end shape. The temperature probe (200) includes a probe body (206) configured to be mounted within the thermowell. A temperature sensitive element (216) is disposed within the probe body (206) and has an electrical characteristic that varies with temperature. An end cap (208) is coupled to the probe body (206) and has a surface contour that is shaped to match the end shape of the bore of the thermowell (110, 220). A temperature measurement system (222) employing the thermowell (106, 220) and the temperature probe (200) having a geometrically matching end cap (208) is also provided.

The utility model discloses a laboratory high-temperature heating furnace which comprises a heat dissipation box body, an operation table arranged on the heat dissipation box body, a condensate water circulating water jacket fixed on the heat dissipation box body, an inner furnace body, a water inlet pipe and a water outlet pipe, wherein the upper part of the inner furnace body is sleeved in the condensate water circulating water jacket, and the lower part of the inner furnace body is arranged in the heat dissipation box body; the device comprises an inner furnace body, an upper end cover covering the inner furnace body, a heating furnace body which is arranged in a heat dissipation box body and sleeves the lower part of the inner furnace body, a heater arranged between the inner furnace body and the heating furnace body, a first thermowell, a second thermowell, a replacement gas inlet and a replacement gas outlet which are arranged on the upper end cover, and a wire winding roller arranged in the inner furnace body, the heat insulation block is arranged in the middle of the inner furnace body; the heat insulation layer is arranged between the heat insulation block and the upper end cover; the first thermocouple sleeve penetrates through the heat insulation block and is arranged in the wire winding roller, and the water inlet pipe and the water outlet pipe are externally connected with cooling water.

The invention relates to the field of measuring technology and can be used in oil refining, power engineering, metallurgy and other branches of industry to prevent damage to temperature sensors when measuring the temperature of flowing liquid and gaseous media. A thermowell for a temperature sensor comprises a mounting part for attachment to an object, and an immersion part in the shape of a solid of revolution having a blind hole, said immersion part having flow modifying elements on the outer surface thereof, which are provided in the form of longitudinal ribs divided into sections, wherein the sections on adjacent ribs are offset from one another. The technical result is that of adapting a thermowell for use across a wider range of flow rates by more efficiently reducing vortex formation and oscillation amplitude.

The invention relates to an automatic sleeving process method for a thermocouple, and belongs to the field of high-temperature-resistant thermocouples. Comprising the following steps that S1, a thermocouple wire is fed, straightened and then cut into a fixed length; s2, single-hole ceramic tubes are fed, and the multiple single-hole ceramic tubes are moved to a perforating station; s3, enabling the thermocouple wire in the step S1 to pass through the plurality of single-hole ceramic tubes in the step S2 to form a single-group sleeve thermocouple wire; s4, repeating the steps S1 to S3 to form two groups of sleeve thermocouple wires; s5, the double-hole ceramic tube is fed, and the posture of the double-hole ceramic tube is adjusted; s6, enabling the two groups of sleeve thermocouple wires in the step S4 to pass through the double-hole ceramic tube in the step S5; and S7, welding the ends, close to the double-hole ceramic tube, of the two sets of sleeve thermocouple wires in the step S6 to complete the thermocouple sleeve. According to the invention, the thermocouple wire sleeve can be automatically and efficiently operated, and the processing consistency of the thermocouple is ensured.

The utility model provides a thermowell, which comprises an isolating tube, an inner-layer tube and an outer-layer cover. The isolation tube is used for accommodating a thermocouple; the inner-layer pipe comprises a ball bowl, and the isolation pipe penetrates through the ball bowl from the bowl bottom of the ball bowl; the outer-layer cover is arranged outside the inner-layer pipe, the side, close to the bowl bottom of the ball bowl, of the outer-layer cover is a cover top, the side, close to the bowl opening of the ball bowl, of the outer-layer cover is a cover bottom, the cover top is connected with the outer wall of the isolation pipe in a sealed mode, the cover bottom is open, and the inner-layer pipe is connected with the isolation pipe in a sealed mode. And the cover surface of the outer layer cover is provided with an air inlet pipe. Nitrogen is introduced into the outer layer cover through the gas inlet pipe of the outer layer cover, a nitrogen environment is formed in the area around the thermocouple inlet of the process pipe, oxygen in the atmosphere is effectively prevented from entering the process pipe, the sealing performance of the thermocouple inlet end of the process pipe is improved, the leakage rate is reduced, the situation that the uniformity of wafers is poor is reduced, and the stability of a machine table is improved.

The utility model relates to the technical field of coal cups, in particular to an alignment device for a coal cup, which comprises a cup body, a cup bottom, a pressure disc, a thermocouple sleeve and a pressure plate, the alignment mechanism comprises a disc, a cylindrical rod, a handle and a cross rod; the coal cup solves the problems that when an existing coal cup is installed, observation needs to be conducted through human eyes, deviation is prone to occurring between the center point of a groove in the cup bottom and a screw hole in the cup body, a pressure disc is blocked and cannot move, the accuracy of an experiment result is reduced, installation efficiency is low, observation does not need to be conducted through the human eyes, and the cost is low. The cup bottom can be rapidly installed in the cup body, it is guaranteed that the center point of the groove in the cup bottom and the screw hole in the cup body are located on the same vertical plane, movement of the pressure disc is guaranteed, the accuracy of experimental results is improved, and meanwhile the installation efficiency of the coal cup is improved.