176results about "Furnace heating elements" patented technology

A manufacturing process for a food warming pad includes the following steps: a pad body with a groove formed on a second surface is manufactured by an integrated molding process; after the heating wire is embedded in the groove, an encapsulation glue is coated, and a drying operation is performed; after the encapsulation glue is completely cured, a controller is installed; and then, a test is performed to obtain a qualified food warming pad.

The invention discloses a single-tank hanging basket type immersion resistance type fused salt electric heating device, which belongs to the technical field of high-temperature heat storage equipment, and comprises a heat storage tank body, a tank cover, an electric heater, a stirring mechanism, a lifting execution mechanism and a control system, the electric heater comprises a connecting disc and a plurality of electric heating pipes which are integrated on the bottom surface of the connecting disc and are distributed radially and symmetrically; the stirring mechanism comprises a stirring shaft and stirring blades, and the upper end of the stirring shaft is in transmission connection with the first driving motor; the lifting executing mechanism comprises a lifting connecting rod correspondingly connected to the top end of the connecting disc. The lifting connecting rod penetrates through the tank cover through a sealing sleeve and is in transmission connection with a second driving motor. And the control system is electrically connected with the first driving motor, the second driving motor, the electric heater and the temperature sensor, is used for adjusting the immersion depth and power-on and power-off of the electric heater, and is linked with the stirring mechanism. Fused salt multi-gradient temperature field balance control is achieved by dynamically adjusting the immersion depth of the electric heating pipe, and thermal stress is reduced.

The present disclosure relates to electric heating assemblies for kiln cars and kilns, to electric heated kiln cars for kilns, to electric continuous kilns and methods. An electric heating assembly comprises a U-shaped electric heating element and a first insulation surrounding an end part of a first side portion of the heating element and a second insulation surrounding an end part of a second side portion of the heating element. The first and second side portions are of a same length or shorter than a top portion of the U-shaped electric heating element.

A foldable space heater comprises a lower housing, a telescopic pole, and an upper housing. The upper housing connected with the telescopic pole via a first hinge joint. The lower housing connected with the telescopic pole via a second hinge joint. An electric wire passed through the lower housing towards the upper housing via the telescopic pole to avoid tripping of the electric wire. The upper housing includes a heating element, and a fan. The heating element connected with the electric wire to convert electric energy into heat. The fan ventilates the radiations associated with the heat. The telescopic pole makes the foldable space heater extendable and retractable. The first hinge joint and second hinge joint makes the foldable space heater collapsible. A user interface provided to operate the foldable space heater. The foldable space heater also equipped with wireless charging.

The present invention relates to an oven (1, 1') for an analytical system, in particular for a titration system, in particular for a Karl Fischer titration system. The oven (1, 1') comprises a housing, a blocking system (2a, 2a', 2b, 2b', 2c, 2c') and an insert (3, 3') for a sample container. The blocking system (2a, 2a', 2b, 2b', 2c, 2c') is arranged at least partially around the insert (3, 3'). At least one heating element is arranged between the blocking system (2a, 2a', 2b, 2b', 2c, 2c') and the insert (3, 3') and at least partially surrounds the insert (3, 3'). The present invention also relates to a titration system and a titration method having such an oven (1, 1').

The invention relates to a system and method for a multi-layer heating system. The heating system may include an electrically conductive refractory layer; an electrically insulating layer; and a thermal insulation layer between the electrically conductive refractory layer and the electrically insulating layer. The conductive refractory layer may operate at significantly higher temperatures than the electrically insulating layer. The heating system may also include a wall of the furnace, and an air gap between the thermal insulation layer and the wall of the furnace.

The invention relates to a method for operating at least one heating element in a thermal processing device for heating a material, for example, a metal strip. The heating element is operated at a predetermined power. To extend the service life of the heating element, the method according to the invention provides for predicting the remaining service life of the heating element and controlling the power at which the heating element is operated depending on the predicted remaining service life.

To provide a substrate processing apparatus capable of improving temperature deviation.SOLUTION: A substrate processing apparatus is a substrate processing apparatus performing heat treatment on a plurality of substrates, and includes: a process chamber 100 forming a processing space in which a plurality of substrates 1 are disposed to be spaced apart from each other along a vertical direction and processed; a plurality of first heater units 200 disposed in parallel with each other in a first horizontal direction in the processing space to correspond to some of the plurality of substrates 1; a plurality of second heater units 300 disposed in parallel with each other in a second horizontal direction that intersects with the first direction in the processing space to correspond to remaining some of the plurality of substrates 1; and auxiliary heater parts 400 installed at positions adjacent to both side surfaces of a process chamber in the processing space so as to be parallel to the second heater units, respectively.SELECTED DRAWING: Figure 2

A spiral electric radiant tube comprises a spiral electric heating wire, a spiral magnetic column, a magnetic disk and a radiant tube sleeve. A cavity structure is arranged in the radiant tube sleeve, a plurality of spiral magnetic columns are arranged in the cavity structure, a plurality of magnetic discs are arranged on the spiral magnetic columns in a sleeving mode, the spiral magnetic columns are fixedly installed in the radiant tube sleeve through the magnetic discs, and the spiral electric heating wire is evenly wound in the axial direction of the spiral magnetic columns. According to the method, the spiral electric radiant tube is accurately controlled through a model combining a single neuron model and a PID control model, a Delta learning rule is adopted, and the function relationship between the weighting coefficient and the input, output and output deviation of the neuron is considered; when the Delta learning rule is adopted, the connection weight can be adjusted according to the difference between the actual output and the expected output of the neuron, and the weight coefficient can be adjusted online according to the learning capability and the self-adaptability of the neural network, so that the method has a more stable tracking characteristic and better robustness, and has higher self-adaptability and higher control precision.

The present disclosure concerns an indirectly heated electrical rotary kiln (1) comprising a longitudinal inner shell (2) for conveying process material (3) therethrough, the inner shell (2) being rotatable about its longitudinal axis. The rotary kiln further comprises a stationary shroud (4) arranged along the length and around the cross-sectional perimeter of the inner shell (2), thereby surrounding said inner shell (2), and a shroud module (5) detachable from the remaining shroud (4), and formed as a longitudinal section and a cross-sectional perimeter segment of the shroud (4). The rotary kiln (1) further comprises an electrical heating element (6) provided on the shroud module on an inside of the shroud, said heating element (6) being configured to heat the inner shell, when in use. Methods for replacing a heating element (6) of the rotary kiln (1) are also disclosed.

Systems and methods are described for a multi-layer heating system. The heating system may include an electrically conductive refractory layer; an electrically insulating layer; and a thermally insulating layer between the electrically conductive refractory layer and the electrically insulating layer. The electrically conductive refractory layer may operate at a significantly higher temperature than the electrically insulating layer. The heating system may also include a wall of a furnace, and an air gap between the thermally insulating layer and the wall of the furnace.

This application provides a heater for a single crystal furnace and a single crystal furnace. In one example, a heater for a single crystal furnace includes a heating cylinder and an electrode footplate. The heating cylinder has a cylindrical structure arranged around a crucible in the single crystal furnace. The electrode footplate includes a first electrode footplate supporting one side of the heating cylinder and configured to connect to a first electrode of a power supply, and a second electrode footplate supporting another side of the heating cylinder and configured to connect to a second electrode of the power supply. A resistivity of a material of the electrode footplate is less than a resistivity of a material of the heating cylinder.

To provide a heating treatment apparatus which can suppress the generation of particles even when each heater stretches in a direction along a central axis upon the ON / OFF time of the heater.SOLUTION: A heating treatment apparatus comprises: a chamber for storing a workpiece; bar-shaped plural heaters 33 which are provided inside the chamber; and either a first support part 34 or a second support part for supporting the heaters at the inside of the chamber. The plural heaters are lined up in a heater central axis cross direction, and the first support part comprises: a first plate 34a2 provided below the heaters; and a rolling part 34a provided between the heaters and the first plate, brought into contact with the heaters and the first plate and movable in the heater central axis direction. The second support part comprises: a holding part for holding the heaters; and a second plate which is connected to the holding part and is elastically deformable in the central axis direction of the heaters in response to the stretching of the heaters.SELECTED DRAWING: Figure 8

A system, method, and apparatus for electrically shielding heated components, and more particularly, a system, method, and apparatus for electrically shielding electrically heated components in a manner compatible with a GFCI (Ground Failure Circuit Breaker) protected circuit are provided. An example includes an electrically shielded heating assembly including: a conductor, where the conductor is a heating element connected through a GFCI between a power line and a neutral line of an electrical circuit; and a shield proximate to the conductor and connected to the GFCI, where the shield receives a portion of the current from the conductor and returns the portion of the received current to the GFCI.

The utility model discloses a heater and an ingot furnace, and relates to the technical field of polycrystal growth. The side heater is cylindrical; the side heater is composed of a first heating assembly and at least two foot plates distributed on the first heating assembly at intervals. The first electrode is arranged on at least one foot plate; a top heater; the top heater is square; the top heater is arranged on the side heater, the central axis of the top heater coincides with the central axis of the side heater, and the top heater is composed of a second heating assembly and second electrodes distributed on the second heating assembly at intervals. According to the utility model, the circular heater is adopted, so that the non-uniformity of a temperature field is made up, and the growth direction of the cast single crystal is more stable, thereby ensuring the overall quality of the cast single crystal silicon ingot, improving the yield of the single crystal and the feeding weight of a single furnace, and reducing the production cost.

A heat treatment method includes: forming an amorphous silicon film having a hydrogen concentration in a film of 5×1019 atoms / cm3 or more, on a substrate; and irradiating the substrate with microwaves to heat the amorphous silicon film thereby forming a polycrystalline silicon film from the amorphous silicon film.

The invention relates to a heating assembly (16) for an industrial furnace (10) and comprising a radiant housing (18) extending along a first main axis (23) in the industrial furnace (10) and supported by a first support (26) and a second support (27), and an electrical heating insert (60) extending along a second main axis (61) and arranged in the radiant housing (18), wherein the radiant housing (18) is configured for operating in a plurality of angular positions relative to the first main axis (23), and wherein the first support (26) and the second support (27) comprise supporting means (30) for allowing a rotation of the radiant housing (18) around the first main axis (23) during a maintenance operation in order to compensate for previous deformation of the radiant housing (18) and therefore extend the service life of the radiant housing (18).

The invention relates to a heating element (7) for a furnace, which heating element comprises a sapphire glass tube (8) for receiving a heating coil (17) inside the sapphire glass tube (8). The sapphire glass tube (8) is gas-tightly connected to a borosilicate tube (14) and also to a quartz glass tube (15). The electrical connections at the ends lead through in a gas-tightly compressed manner. According to the invention, the tube element is made of sapphire (8) and is gas-tightly joined by transition glasses and glass solder to compensate for the different coefficients of thermal expansion. The joined elements (14, 15) are located outside the firing chamber (2) so that they ensure operational reliability in the case of a thermal effect of up to 500° C. Furthermore, for firing / sintering the ceramic element (4) with shortwave infrared radiation in the range of from 0.8 μm to 2.5 μm, the heating element (7) has stable optical, electrical and mechanical properties and thus high-quality, permanently uniform firing and sintering results are ensured with significantly shortened firing-sintering times. No changes to the surface of the heating elements (7) occur which are caused by chemical influences or evaporations from the fired-sintered elements. No contamination of the sintered objects and the firing chamber occurs which is caused by the heating element (7). The heating element (7) can be used at an operating temperature up to 1900° C. and thus ensures use over long uptimes.

According to the present invention, provided is a heater including a heat generating member being conductive and configured to radiate heat rays by being fed with electric power, a tubular member constituted by a metal and accommodating the heat generating member, and an intermediate member arranged between the heat generating member and the tubular member and constituted by an electrically insulating material, wherein the intermediate member is arranged and / or configured so as not to block, among the heat rays radiated from the heat generating member, at least light having a wavelength of from 1 µm to 2 um from reaching the tubular member, a maximum distance between the intermediate member and the tubular member is twice or less the thickness of the intermediate member, and a maximum distance between the heat generating member and the intermediate member is less than twice the thickness of the intermediate member.

The utility model discloses a quartz tube supporting structure of a high temperature heater, which comprises pulleys and a circular arc long block, a group of pulley mounting grooves are distributed on the circular arc wall of the inner side of the circular arc long block, and each pulley mounting groove is internally and rotatably provided with a pulley. And part of the pulley surface of each pulley is in contact with the corresponding surface of the quartz tube. The quartz tube conveying device is reasonable in structural design, a plurality of arc long blocks with a group of pulleys are linearly arranged in the heating furnace body at equal intervals to form a conveying structure which is in rolling contact with a quartz tube, and a structure for preventing the quartz tube from laterally slipping is formed between the pulleys at the two ends and the pulley in the middle area. The quartz tube is prevented from sliding, bumping and impacting on the heater unit, the use safety and stability of the furnace body are improved, the quartz tube is convenient to mount and dismount through rolling displacement, and the abnormal fusion deformation of the quartz tube caused by direct contact between the quartz tube and the heating wire is avoided.

An indirectly heated electrical rotary kiln including a longitudinal inner shell for conveying process material therethrough, the inner shell being rotatable about its longitudinal axis. The rotary kiln further includes a stationary shroud arranged along the length and around the cross-sectional perimeter of the inner shell, thereby surrounding said inner shell, and a shroud module detachable from the remaining shroud, and formed as a longitudinal section and a cross-sectional perimeter segment of the shroud. The rotary kiln further includes an electrical heating element provided on the shroud module on an inside of the shroud, said heating element being configured to heat the inner shell, when in use. Methods for replacing a heating element of the rotary kiln are also disclosed.

A heating module (10) comprising at least one heating element (12) configured to convert electric energy into heat during operation, whereby the at least one heating element (12) comprises ceramic material and is arranged to form at least one heating zone (14, 16, 18) comprising a plurality of shanks (30). The at least one heating zone (14, 16, 18) is configured to radiate heat outwards from the heating module (10) in a diverging manner. Each shank (30) is clamped to the external surface (24) of the heating module (10) and the lower end (34) of each shank (30) is unsecured, thereby securing the heating zone in position while permitting a lower end (34) of the heating zone to move vertically downwards. The heating element forms a plurality of heating zones, the heating zones (14, 16, 18) being arranged longitudinally at a plurality of vertical levels.

A heating device and method for substrate glass production are provided. The device includes a furnace tray and multiple heating members. On the furnace tray's side facing the glass substrate, multiple grooves are arrayed along its height; each groove body penetrates the furnace tray along its length direction, with one heating member inside and extending along the groove body's length direction. Each heating member includes a fixing rod disposed in the groove body and fixedly mounted to the furnace tray and a heating wire wound around an outer circumferential surface of the fixing rod along a length direction of the fixing rod. In a thickness direction of the furnace tray, an outer diameter of the heating wire is greater than a height of the groove body. An inner side surface of the groove body has a reflective layer with a preset distance from the heating member.

The invention relates to the technical field of heating furnaces, in particular to a heating device and method for a pressure reaction kettle. The heating device comprises a furnace body, wherein the furnace body comprises an upper furnace shell, a lower furnace shell and a heat insulation ring; a bearing ring is installed on the upper portion of the upper furnace shell, a top cover is installed on the top of the upper furnace shell, and a bottom plate is installed at the bottom of the lower furnace shell. The heat insulation ring is clamped between the upper furnace shell and the lower furnace shell; a plurality of heating units are arranged on the inner side of the upper furnace shell and the inner side of the lower furnace shell; first adjusting screw rods in one-to-one correspondence with the heating units are in threaded connection in the upper furnace shell; second adjusting screw rods in one-to-one correspondence with the heating units are in threaded connection in the lower furnace shell; and temperature monitoring assemblies are mounted in the upper furnace shell and the lower furnace shell. The heating device can uniformly heat the pressure reaction kettle in the axial direction and the circumferential direction; under the condition that a certain heating unit is suddenly damaged, the uniform axial heating effect can be kept by adjusting the height positions of other heating units.

This composition includes a Ru-Mo-W alloy having, in atomic%, a chemical composition including Mo: greater than 0% and 49% or less and W: greater than 0% and 45% or less, and the total content of Mo and W in the Ru-Mo-W alloy is greater than 30% and less than 50%.

A heater for melting glass includes: a heating member containing carbon (C) configured to emit heat rays upon power feeding; and a tubular member made of metal configured to have one end closed, and to house the heating member. The heating member includes a first heat generating part and a second heat generating part along an extending axis direction of the heater, and the first heat generating part is arranged at a position closer to the one end of the tubular member than is the second heat generating part. Denoting a unit-length resistance of the first heat generating part along the extending axis direction by X (Ω / m), and denoting a unit-length resistance of the second heat generating part by Y (Ω / m),( 1 / 30)X<Y<(½)X  Formula (1)is satisfied.

The present application relates to heating furnace technical field, specifically to a kind of heating device and method for pressure reaction kettle.The heating device includes furnace body, furnace body is on furnace shell, lower furnace shell and heat insulation ring;Ring is installed on the upper furnace shell upper portion, top cover is installed on the top of upper furnace shell, bottom plate is installed on the bottom of lower furnace shell;Heat insulation ring is clamped between upper furnace shell and lower furnace shell;Multiple heating units are provided in the inner side of upper furnace shell and lower furnace shell;First adjusting screw is screw-connected with heating unit one-to-one in the inner side of upper furnace shell;Second adjusting screw is screw-connected with heating unit one-to-one in the inner side of lower furnace shell;Temperature monitoring component is installed in the inner side of upper furnace shell and lower furnace shell.The heating device can be heated to pressure reaction kettle in axial and circumferential direction evenly;In the case where a certain heating unit is suddenly damaged, the height position of other heating units is adjusted to maintain uniform axial heating effect.

The present invention relates to an alloy material including an alloy containing at least Ni, Al, and Ti, the alloy material including a matrix phase with a face-centered cubic (FCC) structure and precipitates formed within the matrix phase, exhibiting predetermined peak characteristics and having high resistivity.