CN209764289U - Thermocouple mounting block connected in series into crawler-type heater - Google Patents
Thermocouple mounting block connected in series into crawler-type heater Download PDFInfo
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- CN209764289U CN209764289U CN201920935999.7U CN201920935999U CN209764289U CN 209764289 U CN209764289 U CN 209764289U CN 201920935999 U CN201920935999 U CN 201920935999U CN 209764289 U CN209764289 U CN 209764289U
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Abstract
The utility model discloses a thermocouple mounting block which is connected in series into a crawler-type heater, wherein the mounting block and a heating block in the crawler-type heater have the same interconnection structure so as to be mutually connected with the heating block to form the crawler-type heater; the mounting block is made of heat conducting materials, a mounting hole is formed in the mounting block and used for mounting an armored thermocouple, and the armored thermocouple is in heat conducting connection with the mounting block. The utility model discloses an installation piece can concatenate into in the crawler-type heater and be used for installing the thermocouple, has overcome current thermocouple mounting means and has made the thermocouple difficult defect fixed, the unsafe measuring result, adopts the utility model discloses the installation piece can make the thermocouple installation fixed convenient to obtain accurate measuring result.
Description
Technical Field
The embodiment of the utility model provides a thermocouple installation piece that embodiment relates to crawler-type heater, in particular to concatenate into crawler-type heater.
Background
The crawler-type heater is a common flexible heater, can be attached to a workpiece for heating, is generally formed by connecting heating wires in series with ceramic heating sheets, is provided with a quick plug connector and the like, and is commonly used for pre-welding preheating or post-welding heat treatment (collectively called welding heat treatment) of an industrial pipeline field welding connector in the industries of electric power, chemical engineering and the like.
The field pipeline heat treatment generally needs a heater, a thermocouple, heat preservation cotton, a heat insulation blanket, iron wire binding and the like. The heater is used for heating the pipeline; the thermocouple is used for measuring the temperature of the pipeline; heat insulation blankets, heat insulation cotton and the like are used for covering heaters and pipelines to keep the temperature; the heat insulation iron wire or iron binding belt is used for fixing the heater, the thermocouple, the heat insulation cotton and the like.
The existing pipeline heat treatment mode is generally as follows: thermocouples are arranged on the pipeline at the positions specified by the process specification, such as the positions of a welding seam, a heat affected zone, a base material and the like in the axial direction and the positions of 12 o ' clock, 3 o ' clock, 9 o ' clock and the like in the circumferential direction, and are used for measuring the temperature and providing signal feedback for controlling the temperature of the heater. The commonly used thermocouples are K-type sheathed thermocouples and plain wire thermocouples. The K-shaped armored thermocouple is fixed on the pipeline in a manner of iron wire binding and the like, and the simple wire-shaped thermocouple is used for welding the cathode and the anode of two wire shapes on the pipeline by using an energy storage type welding instrument. After a thermocouple is installed on the surface of the pipeline, the crawler-type heater covers the thermocouple and the surface of the pipeline, then the heater is fixed by an iron wire, and a heat insulation blanket, heat insulation cotton and the like are coated outside the heater. There are 4 layers of structures on the pipeline section: pipes, thermocouples and lead-out wires, heaters, and insulation wool (or heat insulation blankets).
The arrangement of the crawler heater, the thermocouple and the like has the following problems: the thermocouple is bound by iron wires or welded and fixed, and the field operation wastes time and labor; the thermocouple and the outgoing line are arranged in the heater, and the thermocouple and the outgoing line are easily influenced by the gravity of the heater after the heater is coated outside to cause slippage and falling, so that the measurement result is inaccurate; an iron wire for binding the thermocouple is easy to expand due to heating, so that the contact between the measuring end part of the thermocouple and the surface of the pipeline is poor, and the measuring result is inaccurate; in addition, the operator cannot visually recognize the dislocation of the thermocouple from the outside and take corrective measures in time; in addition, according to the arrangement mode of the existing heater and thermocouple, a heat insulation blanket or heat insulation cotton is not generally adopted between the thermocouple and the heater for isolation, so that the heating of the heater on the pipeline is avoided being influenced, the local non-uniformity of a heat treatment temperature field is caused, and the safety of the pipeline is influenced, but on the other hand, the thermocouple measurement result is influenced by the heat of the heater and is inaccurate due to the fact that the thermocouple is not isolated from the heater.
SUMMERY OF THE UTILITY MODEL
One of the objects of the utility model is to provide an install the piece in order to replace the heating piece in concatenating into crawler-type heater, solve among the prior art thermocouple installation inconvenient, difficult fixed and measure unsafe problem.
The utility model provides a thermocouple mounting block connected in series into a crawler-type heater, which is characterized in that the mounting block and a heating block in the crawler-type heater have the same interconnection structure so as to be mutually connected with the heating block to form the crawler-type heater; and the mounting block is made of heat conducting material, a mounting hole is formed in the mounting block and used for mounting a sheathed thermocouple, and the sheathed thermocouple is in heat conducting connection with the mounting block.
According to an exemplary embodiment, the mounting holes include a first mounting hole and a second mounting hole communicating with each other; the first mounting hole is parallel to the surface of the mounting block to be in contact with a workpiece and used for inserting an armored thermocouple; and the second mounting hole is perpendicular to the first mounting hole and used for mounting a fixing screw.
according to an exemplary embodiment, the first mounting hole is a blind hole, an opening end of the blind hole is opened at one end face of the mounting block, and a closed end is close to the other end face opposite to the end face where the opening end is located; the second mounting hole is opened on an opposite surface of a surface of the mounting block, which is in contact with the workpiece, at a central position of the opposite surface.
According to an exemplary embodiment, the first mounting hole extends close to a surface where an open end of the second mounting hole is located.
According to an exemplary embodiment, the surface of the mounting block that is to be in contact with the workpiece protrudes beyond the corresponding surface of the heating block of the crawler heater.
According to an exemplary embodiment, the mounting block further comprises a through hole therein for penetrating the heating wire; and the through hole is parallel to the surface of the mounting block, which is in contact with the workpiece, and is staggered with the position of the mounting hole.
According to an exemplary embodiment, a thermal insulation means is provided on an inner wall of the through hole to thermally insulate the heating wire from the mounting block.
According to an exemplary embodiment, the insulation means comprises an insulation sleeve.
According to an exemplary embodiment, the insulation arrangement further comprises an insulation material arranged between the insulation sleeve and the inner wall of the through hole.
According to an exemplary embodiment, the through holes are two and are respectively located at two end sides of the mounting block.
The utility model discloses an installation piece can concatenate into crawler-type heater and be arranged in the installation thermocouple, has overcome current thermocouple mounting means and has made the thermocouple difficult fixed, the unsafe defect of measuring result. Adopt the utility model discloses an installation piece can conveniently install and fixed thermocouple for the measuring result of thermocouple is more accurate.
Drawings
In order to illustrate the technical solution of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only for the convenience of illustrating the concept of the present invention, and are not intended to limit the present invention.
In the drawings, there is shown a schematic structural diagram according to an embodiment of the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of the various components and the relative sizes therebetween shown in the drawings are merely exemplary, and those skilled in the art may additionally design components having different shapes and sizes according to actual needs.
Fig. 1a is a schematic perspective view of a mounting block in a track heater according to an embodiment of the present invention; and
FIG. 1b is a schematic plan view of the mounting block of FIG. 1 a;
FIG. 2 is a schematic structural view of a track heater including one example of the mounting block of FIG. 1 a;
FIG. 3 is a schematic structural view of an arrangement of the track heater according to FIG. 2 when used to heat a pipeline; and
FIG. 4 is a cross-sectional schematic view of the arrangement of the track heater of FIG. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. In addition, in the following description, a description of a part of known structures and techniques is omitted.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The structure of the thermocouple installation block of the present invention connected in series to the crawler heater will be described in detail below with reference to the embodiments.
The utility model provides a thermocouple mounting block connected in series into a crawler heater, wherein the mounting block and a heating block in the crawler heater have the same interconnection structure so as to be connected with each other to form the crawler heater; and the mounting block is made of heat conducting material, a mounting hole is formed in the mounting block and used for mounting an armored thermocouple, and the armored thermocouple is in heat conducting connection with the mounting block.
Through concatenating in crawler-type heater the utility model discloses a thermocouple installation piece has overcome all sorts of drawbacks of the fixed thermocouple of current ligature fixed or welded type, can conveniently install and fixed thermocouple for the measuring result of thermocouple is more accurate.
Fig. 1a is a schematic perspective view of a mounting block 20 that may be used in the track heater 100 of fig. 1 according to another embodiment of the present invention. Fig. 1b is a schematic plan view of the mounting block 20. In this embodiment, the mounting block 20 is used to mount a sheathed thermocouple. As shown in fig. 1a and 1b, the mounting block 20 is formed substantially in a rectangular parallelepiped structure. The mounting block 20 comprises a first mounting hole 211 and a second mounting hole 212 which are communicated with each other to form a mounting hole 21 and are used for mounting the K-type armored thermocouple. The K-type sheathed thermocouple is in thermally conductive connection with the mounting block 20. In this case, the mounting block 20 is made of a heat conductive material as a heat collecting block, and the thermocouple measures the temperature of the pipe through the mounting block 20.
Specifically, as shown in fig. 1a and 1b, the first mounting hole 211 is parallel to the upper surface 32 and the lower surface 31 of the mounting block 21, and the lower surface 31 is a surface to be in contact with a workpiece for heat transfer. The first mounting hole 211 is used to insert a K-type sheathed thermocouple (not shown). The first mounting hole 211 is a blind hole having an open end on one end surface 33 of the mounting block 20 and a closed end adjacent to the other end surface 34 opposite to the surface on which the open end is located, thereby forming a deep hole for stably inserting the thermocouple. The second mounting hole 212 is substantially perpendicular to the first mounting hole 211 and opens on the upper surface 32 of the mounting block 20, and preferably the second mounting hole 212 is located at the center of the upper surface 32. The second mounting hole 212 communicates with the first mounting hole 211 for mounting a screw 28 to fix the K-type sheathed thermocouple inserted into the first mounting hole 211. In addition, a first mounting hole 211 may extend adjacent to the upper surface 32 to facilitate screwing of a thermocouple therein.
In this embodiment, both side ends of the mounting block 20 further include heater wire through holes 24 for penetrating heater wires (not shown). The first mounting hole 211 is located approximately at the center of the mounting block 20 in a direction parallel to the upper surface 32 and the lower surface 31 and is parallel to the filament through hole 24. The heater through hole 24 is offset from the mounting hole 21 (including the first mounting hole 211 and the second mounting hole 212). Preferably, two through holes 24 are formed at both end sides of the mounting block 20, and the first mounting hole 211 is formed at a middle position between the two through holes 24.
In order to prevent heat of the heater wire from being transferred to the mounting block, which may cause inaccurate measurement results, a heat insulating device may be provided on the inner wall of the heater wire through hole 24 to thermally insulate the heater wire from the mounting block 20. The insulation means may comprise an insulation sleeve 29, such as a ceramic insulation sleeve. Optionally, an insulating material such as a heat insulating blanket 27 may be wrapped around the insulating sleeve 29 to further insulate the heat generated by the heating wires.
further, the lower surface of the mounting block 20, i.e., the surface of the mounting block that will contact the workpiece, preferably protrudes above the corresponding lower surface of the heating block 10 of the track heater 100. In this way, when the track heater 100 is wrapped around the outside of the pipe, the mounting block 20 can more reliably contact the pipe, obtaining the same temperature as the pipe, so that the thermocouple can easily obtain an accurate measurement result. In addition, the surface of the mounting block 20 contacting the pipe may be provided with a concave surface so as to closely contact the pipe, so that the thermocouple obtains an accurate measurement result.
FIG. 2 is a schematic diagram of a track heater 100 including one example of the mounting block 20 of FIGS. 1a-1 b. As shown in fig. 2, the track heater 100 includes a plurality of interconnected heating blocks 10 therein. In particular, unlike prior track heaters, the track heater 100 also includes at least one mounting block 20 that replaces a corresponding number of heating blocks 10 in the track heater 100 and has the same interconnection structure as the heating blocks 10 in the track heater 100, so that the mounting block 20 can be interconnected with surrounding heating blocks 10 as one heating block, forming an integral track heater. The mounting block 20 mounts a type K sheathed thermocouple to measure the temperature of a workpiece, such as a pipe 40, heated by the track-type heater 100.
The construction of the track heater 100 may employ various conventional track heater constructions in addition to the mounting block 20 that is threaded into the heating block 10. For example, the track heater 100 includes a power connection cord 30 as a conventional track heater; each heating block 10 in the track heater 100 may be a conventional ceramic heating block; each heating block 10 may include therein heating wire through-holes communicating with each other. The heating wire through-hole may serve as an interconnection structure that integrally connects the heating block 10 and the mounting block 20 when the heating wire is penetrated. Thus, each mounting block 20 can be strung into the entire track heater 100 as one heating block 10. The number and location of the mounting blocks 20 may be selected according to the requirements of the actual measured workpiece. This can be done by the manufacturer of the track heater 100 while it is being manufactured.
Adopt the utility model discloses when crawler-type heater 100 heats work piece such as pipeline, need not arrange temperature measuring device on the pipeline alone, simplified process flow, practiced thrift man-hour. In addition, the basic structure of the track heater 100 of the present invention is consistent with that of a conventional track heater, and can be directly used instead of the conventional track heater without bringing extra burden to the operator.
Fig. 3 is a schematic structural view of an arrangement when the track heater 100 according to one application example is used for heating the pipe 40. Fig. 4 is a cross-sectional schematic view of the arrangement of the track heater 100 of fig. 3. As shown in fig. 3 to 4, the track heater 100 is wrapped on the pipeline 40 for heating the pipeline 40, and an insulation layer 60, such as a heat insulation blanket and heat insulation cotton, is disposed outside the track heater 100. The track heater 100 includes a plurality of mounting blocks 20, each mounting block 20 having a K-type sheathed thermocouple 50 connected thereto for measuring the temperature of the pipe 40.
When the crawler-type heater 100 is used for heating a pipeline, corresponding heating operation can be performed on the pipeline only by installing the K-shaped armored thermocouple 50 on the installation block 20, then coating the crawler-type heater 100 on the pipeline, and coating the crawler-type heater 100 with heat preservation layers 60 such as heat preservation cotton and the like as heat insulation devices. The temperature change of the pipeline can be monitored simultaneously in the heating process so as to adjust the heating temperature timely.
Specifically, when the track heater 100 with the mounting block 20 of the present embodiment is used to heat a pipeline, the operation is as follows:
Firstly, the side of the crawler-type heater, which is not exposed to the mounting hole or has a concave surface, is opposite to the pipeline to be heated and treated, and the surface of the pipeline to be heated and treated is covered. The width of the pipe to be heated by the heat treatment is checked and aligned with the width of the heater. And checking whether the position of the mounting block on the heater is consistent with the position of the temperature to be measured of the pipeline.
Then, the heater is fixed by adopting an iron wire (or a steel belt), and a plurality of channels can be bound according to the firmness degree and the effect. The common iron wires are bound at the head, the tail and the middle of the heater in the width direction and at the position with the mounting block.
and then, inserting the end part of the K-shaped armored thermocouple into the central deep hole on the side surface of the mounting block, inserting the end part to the bottom, and screwing the fixing screw to fix the end part firmly.
Then, the thermocouple connection was checked, and the thermocouple connection wire was led out to the side of the heater along the axial direction of the pipe and fixed with a wire.
Then, the heater power connection wire is led out to the side along the axial direction of the pipeline and fixed by an iron wire.
And finally, coating the heat-preservation cotton on a heat treatment heater, and bundling by using iron wires. The thickness and the width of the heat-insulating cotton need to meet the requirements of regulations.
Thereafter, the heater and thermocouple may be turned on for tube heating and temperature measurement, respectively.
The above operation sequence is not fixed and can be adjusted according to the needs. For example, mounting a K-type sheathed thermocouple on a mounting block of a track heater may be performed after mounting the heater on a pipe.
When the crawler-type heater with the installation block provided by the embodiment of the utility model is used for heating a workpiece, the thermocouple is directly installed in the heater, so that the step of binding iron wires or welding and fixing the thermocouple is omitted, and the thermocouple is convenient to install; the thermocouple is arranged in the heater, so that the problems that the thermocouple slides and falls off due to the gravity of the heater when the heater slides and the contact between the measuring end part of the thermocouple and the surface of the pipeline is poor due to the fact that an iron wire for binding the thermocouple expands when heated are avoided; in addition, the thermocouple is fixed in position and can be observed from the outside; an insulating device can be arranged between the thermocouple and the heater without influencing the heating of the pipeline by the heater. Thereby, adopt and to have the utility model discloses a great deal of defect of prior art has been avoided to the crawler-type heater of installation piece, and the thermocouple can obtain accurate temperature measurement result.
the above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A thermocouple mounting block serially connected into a track heater is characterized in that the mounting block and a heating block in the track heater have the same interconnection structure so as to be mutually connected with the heating block to form the track heater; and is
The mounting block is made of heat conducting materials, a mounting hole is formed in the mounting block and used for mounting an armored thermocouple, and the armored thermocouple is in heat conducting connection with the mounting block.
2. The mounting block of claim 1, wherein the mounting hole comprises a first mounting hole and a second mounting hole that communicate with each other;
The first mounting hole is parallel to the surface of the mounting block to be in contact with a workpiece and used for inserting an armored thermocouple; and the second mounting hole is perpendicular to the first mounting hole and used for mounting a fixing screw.
3. the mounting block of claim 2,
The first mounting hole is a blind hole, the opening end of the blind hole is opened at one end face of the mounting block, and the closed end is close to the other end face opposite to the end face where the opening end is located;
The second mounting hole is opened on an opposite surface of a surface of the mounting block, which is in contact with the workpiece, at a central position of the opposite surface.
4. The mounting block of claim 3, wherein the first mounting hole extends proximate a surface at which the open end of the second mounting hole is located.
5. the mounting block of claim 1, wherein a surface of the mounting block that will contact the workpiece protrudes from a corresponding surface of a heating block of the track heater.
6. The mounting block of claim 2, further comprising a through hole therein for penetrating a heating wire; and is
The through hole is parallel to the surface of the mounting block, which is in contact with the workpiece, and is staggered with the position of the mounting hole.
7. The mounting block of claim 6, wherein the through hole is provided with thermal insulation means on an inner wall thereof to thermally insulate the heating wire from the mounting block.
8. the mounting block of claim 7, wherein the thermal insulation device comprises an insulating sleeve.
9. The mounting block of claim 8, wherein the thermal insulation means further comprises a thermal insulation material disposed between the insulation sleeve and the inner wall of the through-hole.
10. The mounting block of claim 6,
The number of the through holes is two, and the through holes are respectively located on two end sides of the mounting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935999.7U CN209764289U (en) | 2019-06-20 | 2019-06-20 | Thermocouple mounting block connected in series into crawler-type heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920935999.7U CN209764289U (en) | 2019-06-20 | 2019-06-20 | Thermocouple mounting block connected in series into crawler-type heater |
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| Publication Number | Publication Date |
|---|---|
| CN209764289U true CN209764289U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920935999.7U Active CN209764289U (en) | 2019-06-20 | 2019-06-20 | Thermocouple mounting block connected in series into crawler-type heater |
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| CN (1) | CN209764289U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132437A (en) * | 2019-06-20 | 2019-08-16 | 福建晋江热电有限公司 | A kind of the installation of TC block concatenated in tracklayer heater |
| CN112743222A (en) * | 2020-12-28 | 2021-05-04 | 江苏科技大学 | Method for rapidly measuring temperature of friction stir welding weld core area |
-
2019
- 2019-06-20 CN CN201920935999.7U patent/CN209764289U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132437A (en) * | 2019-06-20 | 2019-08-16 | 福建晋江热电有限公司 | A kind of the installation of TC block concatenated in tracklayer heater |
| CN110132437B (en) * | 2019-06-20 | 2024-05-24 | 福建晋江热电有限公司 | Thermocouple installation block connected in series in crawler-type heater |
| CN112743222A (en) * | 2020-12-28 | 2021-05-04 | 江苏科技大学 | Method for rapidly measuring temperature of friction stir welding weld core area |
| CN112743222B (en) * | 2020-12-28 | 2024-01-23 | 江苏科技大学 | Rapid temperature measuring method for friction stir welding weld joint core area |
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Address after: No.7 Anji Road, Andong Park, Jinjiang science and Technology Industrial Park, Quanzhou City, Fujian Province, 362271 Patentee after: Guoneng Shenfu (Jinjiang) Thermal Power Co.,Ltd. Patentee after: SHENHUA FUJIAN ENERGY Co.,Ltd. Patentee after: Guoneng lianjiang Port Power Co.,Ltd. Address before: No.7 Anji Road, Andong Park, Jinjiang science and Technology Industrial Park, Quanzhou City, Fujian Province, 362271 Patentee before: FUJIAN JINJIANG COGENERATION Co.,Ltd. Patentee before: SHENHUA FUJIAN ENERGY Co.,Ltd. Patentee before: SHENHUA(FUZHOU)LUOYUAN BAY PORT&POWER Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |