CN212962873U - Device for improving temperature measurement accuracy of tubular resistance furnace thermocouple - Google Patents
Device for improving temperature measurement accuracy of tubular resistance furnace thermocouple Download PDFInfo
- Publication number
- CN212962873U CN212962873U CN202021180765.5U CN202021180765U CN212962873U CN 212962873 U CN212962873 U CN 212962873U CN 202021180765 U CN202021180765 U CN 202021180765U CN 212962873 U CN212962873 U CN 212962873U
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- Prior art keywords
- fire
- casing
- resistant pipe
- temperature measurement
- thermocouple
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- Expired - Fee Related
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 19
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 50
- 239000010453 quartz Substances 0.000 claims abstract description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 29
- 239000002775 capsule Substances 0.000 claims abstract description 6
- 238000004321 preservation Methods 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 15
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 11
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides an improve device of tubular resistance furnace thermocouple temperature measurement degree of accuracy, includes casing, base, thermal-insulated flange, fire-resistant pipe, quartz capsule, resistance wire, heat preservation, recess, porcelain boat, the casing is cylinder type cavity structure, and controls both ends and run through there is circular perforating hole, both ends symmetric connection has thermal-insulated flange about the casing, casing bottom fixed connection the base, the base is trapezoidal form, just it has the arc wall to open on the base up end with the casing cooperation, be fixed with fire-resistant pipe in the casing, the quartz capsule has been pegged graft in the fire-resistant pipe, it has circular thermocouple spliced eye to open on the casing.
Description
Technical Field
The utility model relates to a tubular resistance furnace technical field, in particular to improve device of tubular resistance furnace thermocouple temperature measurement degree of accuracy.
Background
The tubular resistance furnace is a necessary product for tests and detection in the fields of chemical industry, electronics, ceramics, metallurgy, building materials, special materials, new material development and the like, and has the difference from other electric furnaces in terms of working principle and structure.
In the existing resistance furnace for the laboratory, almost all thermocouples are inserted from a jack at the top of the resistance furnace until contacting with a hearth pipe, namely the thermocouples reflect the temperature outside the hearth pipe, the temperature of a porcelain boat inside the hearth pipe is generally lower than the temperature measured by the thermocouples, and the two have certain deviation and cannot accurately react with the temperature of a material; the existing hearth structure is designed to be an uncovering structure, the diffusion of the internal temperature is fast after the hearth is opened after the hearth structure is used, the temperature needs to be increased again when the hearth structure is used again, the heat preservation effect is poor, the heat insulation effect of the existing hearth structure is poor, the heating and heat conduction of the hearth are fast, the measured temperature cannot accurately reflect the temperature of materials, and therefore, the accuracy of thermocouple temperature measurement is particularly important to the regulation and control of the temperature and the accuracy of an experimental result. For this reason, the applicant has designed a device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve device of tubular resistance furnace thermocouple temperature measurement degree of accuracy to solve the problem that proposes in the above-mentioned background art.
The utility model aims at realizing through the following technical scheme: the utility model provides an improve device of tubular resistance furnace thermocouple temperature measurement degree of accuracy, includes casing, base, thermal-insulated flange, fire-resistant pipe, quartz capsule, resistance wire, heat preservation, recess, porcelain boat, the casing is cylinder type cavity structure, and controls both ends and run through there is circular perforating hole, both ends symmetric connection has thermal-insulated flange about the casing, casing bottom fixed connection the base, the base is trapezoidal form, just it has the arc wall to open on the base up end with the casing cooperation, be fixed with fire-resistant pipe in the casing, the quartz capsule has been pegged graft in the fire-resistant pipe, it has circular thermocouple spliced eye to open on the casing.
As a preferred technical scheme: the shell is connected with the heat insulation flange through threads, the heat insulation flange is hollow, the heat insulation flange is filled with an aluminum silicate fiber felt, internal threads are arranged at the front end of the inner wall of the heat insulation flange, and the internal threads are connected with cylindrical threaded columns extending from the left end face and the right end face of the shell;
the center of the cylindrical threaded column is provided with a through hole which penetrates through the shell, and the through hole and the center hole of the heat insulation flange are coaxial.
As a preferred technical scheme: the fire-resistant pipe is a hollow cylindrical pipe, two ends of the fire-resistant pipe are communicated, the fire-resistant pipe is located in the shell, and two ends of the fire-resistant pipe are fixedly connected with the edges of the circular through holes at the left end and the right end of the shell in an overlapping mode.
As a preferred technical scheme: the fire-resistant pipe is cast and fired by adopting a fire-resistant material, the fire-resistant material is a polycrystalline mullite fiber block, an annular groove is fixedly formed in the outer circumference of the fire-resistant pipe, the depth of the annular groove is 1-2mm greater than the diameter of the resistance wire, and the resistance wire is wound in the annular groove;
taps extend from two ends of the resistance wire, and the taps are connected with an external power supply through a through hole formed in the rear of the shell and penetrate out of the shell.
As a preferred technical scheme: and a heat insulation layer is filled between the shell and the fire-resistant pipe, and the heat insulation layer is an aluminum silicate fiber felt.
As a preferred technical scheme: the quartz tube is a cylindrical hollow tube, two ends of the quartz tube are communicated, a groove is fixedly formed in the center of the outer circumferential surface of the quartz tube, and the depth of the groove is 10-20mm smaller than the radius of the quartz tube.
As a preferred technical scheme: and ceramic boats are arranged in the quartz tube and are positioned below the grooves, and aluminum silicate fiber felts are fixedly sealed at the positions, 40-100mm away from the inside of the extending tube, of the left end and the right end of the quartz tube.
As a preferred technical scheme: the porcelain boat is of a rectangular empty groove structure, the width of the porcelain boat is smaller than the diameter of the quartz tube, and the rectangular empty groove of the porcelain boat is divided into a large type, a medium type and a small type.
As a preferred technical scheme: the fire-resistant pipe is provided with a round thermocouple probing hole, and the thermocouple probing hole corresponds to the groove.
As a preferred technical scheme: an external electrified thermocouple is fixed on the circular thermocouple plug hole and penetrates through the thermocouple plug hole through a guide wire to extend to the groove.
Compared with the prior art, the beneficial effects of the utility model are that: the accuracy of measuring material temperature influences the experimental result to a certain extent, the heating temperature of material in the porcelain boat in order to make the temperature of thermocouple reflection more be close, this patent has designed the hearth pipe of a special shape, let its position of placing the porcelain boat inwards sunken, do not influence putting into and taking out of porcelain boat, make the thermocouple insert sunken position, enable the thermocouple like this and be closer the material, the temperature of more real reflection material, the casing both ends are through thermal-insulated flange joint simultaneously, design through thermal-insulated flange, thermal-insulated effect at both ends about for better realization.
Drawings
FIG. 1 is a general schematic view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the base of the present invention;
FIG. 4 is a schematic view of the quartz tube and the groove of the present invention;
FIG. 5 is a schematic view of the heat insulating flange of the present invention;
FIG. 6 is a schematic view of the porcelain boat of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
As shown in fig. 1-6, a device for improving temperature measurement accuracy of a tubular resistance furnace thermocouple comprises a shell 1, a base 2, a heat insulation flange 3, a fire-resistant pipe 4, a quartz tube 5, a resistance wire 6, a heat insulation layer 7, a groove 8 and a porcelain boat 9, wherein the shell 1 is of a cylindrical cavity structure, circular through holes are formed in the left end and the right end of the shell, the heat insulation flange 3 is symmetrically connected to the left end and the right end of the shell 1, the base 2 is fixedly connected to the bottom of the shell 1, the base 2 is in a trapezoidal shape, an arc-shaped groove is formed in the upper end face of the base 2 and matched with the shell 1, the fire-resistant pipe 4 is fixed in the shell 1, the quartz tube 5 is inserted in the fire-resistant pipe 4, and a circular thermocouple insertion hole is.
The casing direct fixed connection is fixed at the arc wall of base through threaded connection or welding mode, the circular thermocouple spliced eye that opens on the casing is convenient for external electrified thermocouple to use, and electrified thermocouple end is inserted the position to the recess in the circular thermocouple spliced eye through the seal wire, is convenient for directly survey the direct temperature of material.
In this embodiment, the shell 1 is connected with the heat insulation flange 3 through threads, the heat insulation flange 3 is hollow, the heat insulation flange 3 is filled with an aluminum silicate fiber felt, the front end of the inner wall of the heat insulation flange 3 is provided with internal threads, and the internal threads are connected with cylindrical threaded columns extending from the left end surface and the right end surface of the shell 1;
the center of the cylindrical threaded column is provided with a through hole which penetrates through the shell 1, and the through hole and the center hole of the heat insulation flange 3 are coaxial.
The heat insulation flange is detached through the threaded shell, meanwhile, the heat insulation flange is in a hollow structural design, and aluminum silicate fiber felts are added into the heat insulation flange to better control the temperature of the left end and the right end of the shell not to leak, so that the heat insulation effect is achieved.
In this embodiment, the fire-resistant pipe 4 is a hollow cylindrical pipe, two ends of the fire-resistant pipe are through, the fire-resistant pipe 4 is located in the casing 1, and two ends of the fire-resistant pipe 4 are fixedly connected to the edges of the circular through holes at the left and right ends of the casing 1. The fire-resistant pipe is fixed at the convenient position of the circular through hole at the left end and the right end of the shell 1, and the normal fire-resistant pipe can be directly lapped at the groove arranged on the circular through hole or directly welded and fixed.
In the embodiment, the fire-resistant pipe 4 is made of a fire-resistant material by casting and firing, the fire-resistant material is a polycrystalline mullite fiber block, an annular groove is fixedly formed in the outer circumference of the fire-resistant pipe 4, the depth of the annular groove is larger than the diameter of the resistance wire 6 by 1-2mm, and the resistance wire 6 is wound in the annular groove; the open-loop groove is formed in the fire-resistant pipe 4, so that resistance wires can be rapidly installed without crossing positions, and the fire-resistant pipe is convenient to fix. The fire-resistant tube is grinded, poured and sintered into a cylindrical hollow shape by the polycrystalline mullite fiber block.
Taps extend from two ends of the resistance wire 6, and the taps penetrate out of the shell 1 from a through hole formed in the back of the shell 1 and are connected with an external power supply. The taps are extension wires at two ends of the wound resistance wire, which are directly led out of an external power supply of the shell to supply power and heat, and the resistance wire is made of aluminum wires or copper wires.
In this embodiment, an insulating layer 7 is filled between the casing 1 and the fire-resistant pipe 4, and the insulating layer 7 is an aluminum silicate fiber felt. The annular air between the shell and the fire-resistant pipe is filled with the heat-insulating layer, so that the heat-insulating effect is better achieved in order to avoid temperature diffusion.
In this embodiment, the quartz tube 5 is a cylindrical hollow tube, two ends of the cylindrical hollow tube are through, a groove 8 is fixedly formed in the center of the outer circumferential surface of the quartz tube 5, and the depth of the groove 8 is smaller than the radius of the quartz tube 5 by 10-20 mm.
In the embodiment, porcelain boats 9 are arranged in the quartz tube 5, the porcelain boats 9 are positioned below the grooves 8, and aluminum silicate fiber felts are fixedly sealed at positions 40-100mm inside the extending tube at the left end and the right end of the quartz tube 5.
The quartz tube 5 is a cylindrical hollow tube, and when the porcelain boat is placed in the quartz tube, the quartz tube is positioned to block the aluminum silicate fiber felt to play the effects of heat insulation and heat preservation, so that air leakage is avoided.
The quartz tube 5 is inserted into the fire-resistant tube 4, the quartz tube 5 can be pulled out of the fire-resistant tube, and the porcelain boat arranged in the quartz tube is positioned below the groove fixedly formed in the center of the outer circumferential surface of the quartz tube 5, so that the temperature can be directly detected when the guide wire extends to the groove.
In this embodiment, the porcelain boat 9 has a rectangular empty slot structure, the width of the porcelain boat 9 is smaller than the diameter of the quartz tube 5, and the rectangular empty slot of the porcelain boat 9 is divided into three types, i.e., a large type, a medium type and a small type.
The porcelain boat is characterized in that the maximum width of the porcelain boat is not more than the diameter of the quartz tube, the length of the porcelain boat is not more than the length of the quartz tube, the porcelain boat is divided into a large type, a medium type and a small type according to the use requirement, and the porcelain boats with different lengths and widths can be used for containing materials.
In this embodiment, the fire-resistant pipe 4 is provided with a circular thermocouple insertion hole, and the thermocouple insertion hole corresponds to the groove 8.
In this embodiment, an external charged thermocouple is fixed on the circular thermocouple insertion hole, and the charged thermocouple penetrates through the thermocouple insertion hole through a guide wire and extends to the groove 8.
The arrangement of the circular thermocouple plug hole and the thermocouple plug hole is to facilitate the structure to extend the guide wire of the charged thermocouple to the groove so as to detect the temperature of the material.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an improve device of tubular resistance furnace thermocouple temperature measurement accuracy which characterized in that: including casing (1), base (2), thermal-insulated flange (3), fire-resistant pipe (4), quartz capsule (5), resistance wire (6), heat preservation (7), recess (8), porcelain boat (9), casing (1) is cylinder type cavity structure, and controls both ends and run through and have circular perforating hole, both ends symmetric connection has thermal-insulated flange (3) about casing (1), casing (1) bottom fixed connection base (2), base (2) are trapezoidal form, just it has the arc wall to open on base (2) the up end with casing (1) cooperation, casing (1) internal fixation has fire-resistant pipe (4), it has quartz capsule (5) to peg graft in fire-resistant pipe (4), it has circular thermocouple spliced eye to open on casing (1).
2. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1, wherein: the shell (1) is connected with the heat insulation flange (3) through threads, the heat insulation flange (3) is hollow, the heat insulation flange (3) is filled with an aluminum silicate fiber felt, the front end of the inner wall of the heat insulation flange (3) is provided with internal threads, and the internal threads are connected with cylindrical threaded columns extending from the left end face and the right end face of the shell (1);
the center of the cylindrical threaded column is provided with a through hole which penetrates through the shell (1) and is coaxial with the center hole of the heat insulation flange (3).
3. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1, wherein: the fire-resistant pipe (4) is a hollow cylindrical pipe, two ends of the fire-resistant pipe are communicated, the fire-resistant pipe (4) is located in the shell (1), and two ends of the fire-resistant pipe (4) are fixedly connected with the edges of circular through holes at the left end and the right end of the shell (1).
4. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1 or 3, wherein: the fire-resistant pipe (4) is cast and fired by adopting a fire-resistant material, the fire-resistant material is a polycrystalline mullite fiber block, an annular groove is fixedly formed in the outer circumference of the fire-resistant pipe (4), the depth of the annular groove is 1-2mm greater than the diameter of the resistance wire (6), and the resistance wire (6) is wound in the annular groove;
taps extend from two ends of the resistance wire (6), and the taps penetrate out of the shell (1) through a through hole formed in the back of the shell (1) and are connected with an external power supply.
5. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1 or 3, wherein: an insulating layer (7) is filled between the shell (1) and the fire-resistant pipe (4), and the insulating layer (7) is an aluminum silicate fiber felt.
6. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1, wherein: the quartz tube (5) is a cylindrical hollow tube, two ends of the quartz tube are communicated, a groove (8) is fixedly formed in the center of the outer circumferential surface of the quartz tube (5), and the depth of the groove (8) is 10-20mm smaller than the radius of the quartz tube (5).
7. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1, wherein: porcelain boats (9) are arranged in the quartz tube (5), the porcelain boats (9) are positioned below the grooves (8), and aluminum silicate fiber felts are fixedly sealed at positions 40-100mm away from the left end and the right end of the quartz tube (5) in the extension tube.
8. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1 or 7, wherein: the porcelain boat (9) is of a rectangular empty groove structure, the width of the porcelain boat (9) is smaller than the diameter of the quartz tube (5), and the rectangular empty groove of the porcelain boat (9) is divided into a large type, a medium type and a small type.
9. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1 or 7, wherein: the fire-resistant pipe (4) is provided with a round thermocouple probing hole, and the thermocouple probing hole corresponds to the groove (8).
10. The device for improving the temperature measurement accuracy of the tubular resistance furnace thermocouple according to claim 1, wherein: an external electrified thermocouple is fixed on the circular thermocouple plug hole, penetrates through the thermocouple plug hole through a guide wire and extends to the groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021180765.5U CN212962873U (en) | 2020-06-23 | 2020-06-23 | Device for improving temperature measurement accuracy of tubular resistance furnace thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021180765.5U CN212962873U (en) | 2020-06-23 | 2020-06-23 | Device for improving temperature measurement accuracy of tubular resistance furnace thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212962873U true CN212962873U (en) | 2021-04-13 |
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ID=75387956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021180765.5U Expired - Fee Related CN212962873U (en) | 2020-06-23 | 2020-06-23 | Device for improving temperature measurement accuracy of tubular resistance furnace thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212962873U (en) |
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2020
- 2020-06-23 CN CN202021180765.5U patent/CN212962873U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210603 Address after: 114041 No.26, ecological street, Qianshan District, Anshan City, Liaoning Province Patentee after: Anshan Jiahe new material development Co.,Ltd. Address before: 114000 No.28, 4th floor, unit 3, building 101, Keji Road, Tiedong District, Anshan City, Liaoning Province Patentee before: Yang Chunjie |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210413 |