CN211147872U - Air-cooled cooling type thermocouple - Google Patents
Air-cooled cooling type thermocouple Download PDFInfo
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- CN211147872U CN211147872U CN201922111855.2U CN201922111855U CN211147872U CN 211147872 U CN211147872 U CN 211147872U CN 201922111855 U CN201922111855 U CN 201922111855U CN 211147872 U CN211147872 U CN 211147872U
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- 238000001816 cooling Methods 0.000 title claims abstract description 18
- 238000009423 ventilation Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004616 Pyrometry Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses an air-cooled cooling thermocouple, the measuring stick is installed on the terminal box, the box is located the measuring stick and is close to one end of the terminal box, the box is equipped with the air intake, be equipped with the first annular hole around the measuring stick on the box, the dryer is installed in the box and extends to the box outside through the annular hole, the dryer blows gas to the part that the measuring stick does not insert in the measuring medium, in order to cool down the measuring stick part that is exposed in the air, prevent the measuring stick from oxidizing seriously because of the high temperature, thereby improve the service life of thermocouple, and the distance between the end of the dryer far away from the terminal box and the end of the measuring stick far away from the terminal box is adjustable, according to the length that the measuring stick exposes in the air part, adjust the distance between the end of the dryer far away from the terminal box and the end of the measuring stick far away from the terminal box, and the dryer can not contact with measuring medium, satisfies different measuring environment.
Description
Technical Field
The utility model relates to a thermocouple technical field especially relates to an air-cooled cooling formula thermocouple.
Background
The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument (a secondary instrument). The appearance of various thermocouples is very different according to needs, but the basic structures of the thermocouples are almost the same, and the thermocouples are generally composed of main parts such as a thermode, an insulating sleeve protection tube, a junction box and the like, and are generally matched with a display instrument, a recording instrument and an electronic regulator for use.
The thermocouple is when using, there is this different structural design to the measuring medium of different temperatures, in some chemical enterprises, because the temperature of measuring the medium reality is higher, the thermocouple is when using, when to pyrometry, not all measure in the end all can be abundant insert measuring medium, consequently have consequently expose outside measuring stick when suffering the high temperature for a long time, the oxidation scheduling problem can appear, lead to the measuring stick to lose its actual function, thereby cause the thermocouple life weak point, it is poor to measure the precision.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem existing in the background technology, the utility model provides an air-cooled cooling type thermocouple.
The utility model provides an air-cooled cooling type thermocouple, which comprises a junction box, a measuring rod, a box body and an air duct;
the measuring rod is arranged on the junction box;
the box body is positioned at one end of the measuring rod, which is close to the junction box, an air inlet is arranged on the box body, and a first annular hole surrounding the measuring rod is arranged on the box body;
the dryer is installed in the box and extends to the box outside through the annular hole, and the dryer is used for supplying air to the measuring stick, and the distance between the tip that the terminal box was kept away from to the dryer and the tip that the terminal box was kept away from to the measuring stick is adjustable.
Preferably, the dryer includes first barrel, and first side of first barrel is located the box, and first barrel is equipped with first ring channel inwards from the first side, and first barrel inner wall is equipped with a plurality of first ventilation holes, a plurality of first ventilation holes and first ring channel intercommunication.
Preferably, the outer wall of the first cylinder is provided with threads, the surface of the box body is provided with threads in the annular hole, and the threads of the outer wall of the first cylinder are matched with the threads of the surface of the box body.
Preferably, the outer wall of the first barrel is provided with threads, the inner wall of the box body is provided with threads, and the threads on the outer wall of the first barrel are matched with the threads on the inner wall of the box body.
Preferably, the air purifier comprises a plurality of second cylinder bodies, wherein second annular holes penetrating through the second cylinder bodies along the axial direction are formed in the second cylinder bodies, a plurality of second ventilation holes are formed in the inner walls of the second cylinder bodies, and the second ventilation holes are communicated with the second annular holes; the plurality of second cylinder bodies are connected in sequence, in any adjacent second cylinder body, the second cylinder body far away from the box body is in sliding fit in the second annular hole of the second cylinder body close to the box body, the end part of the second annular hole on the second cylinder body at the first end is sealed, and the second cylinder body at the second end is in sliding fit in the second annular hole.
Preferably, the box body is of an annular structure and is arranged coaxially with the measuring rod.
Preferably, the end of the measuring rod close to the junction box is located inside the box.
The utility model discloses in, in the air-cooled cooling formula thermocouple working process that provides, the dryer blows gas to the part that the measuring stick did not insert in the measuring medium, cool off with being located the measuring stick part that exposes in the air, it is serious because of the high temperature oxidation to prevent the measuring stick, thereby improve the life of thermocouple, and the tip that the terminal box was kept away from to the dryer is adjustable with the distance that the measuring stick kept away from between the tip of terminal box, expose in the length of air part according to the measuring stick, adjust the tip that the terminal box was kept away from to the dryer and the distance between the tip that the terminal box was kept away from to the measuring stick, make the part that the measuring stick exposes in the air can both obtain the cooling, and the dryer can not contact with the measuring medium, satisfy different measuring environment.
Drawings
Fig. 1 is a schematic structural view of a first design manner of an air-cooled cooling thermocouple according to the present invention;
fig. 2 is a schematic structural diagram of a second design of the air-cooled cooling thermocouple according to the present invention.
Detailed Description
As shown in fig. 1-2, fig. 1 is a schematic structural diagram of a first design mode of an air-cooled cooling type thermocouple provided by the present invention, fig. 2 is a schematic structural diagram of a second design mode of an air-cooled cooling type thermocouple provided by the present invention, and a junction box is not shown.
Referring to fig. 1-2, the utility model provides an air-cooled cooling thermocouple, which comprises a junction box, a measuring rod 1, a box body 2 and an air duct;
the measuring rod 1 is arranged on the junction box, the measuring rod 1 is used for extending into a medium to be measured, and the heat of the medium to be measured is conducted to the measuring rod 1;
the box body 2 is positioned at one end, close to the junction box, of the measuring rod 1, the air inlet 21 is formed in the box body 2, the air inlet 21 is used for being connected with an external air supply device, the external air supply device introduces air into the box body 2, the air is preferably nitrogen, an enclosure is formed around the measuring rod 1 after the nitrogen is blown to the measuring rod 1, the cooling effect can be achieved, oxygen can be isolated, the measuring rod 1 is further prevented from being oxidized, in addition, the nitrogen is easy to prepare compared with other air, and a first annular hole surrounding the measuring rod 1 is formed in the box body 2;
the air duct is arranged in the box body 2 and extends to the outside of the box body 2 through the annular hole, the air duct is used for supplying air to the measuring rod 1, and the distance between the end part of the air duct far away from the junction box and the end part of the measuring rod 1 far away from the junction box is adjustable; the specific structure of the air duct can have the following two design modes, which refer to fig. 1 and fig. 2 respectively.
Referring to fig. 1, in a first design, the air duct includes a first barrel 3, a first side of the first barrel 3 is located in the box 2, the first barrel 3 surrounds the periphery of the measuring rod 1 and is coaxially arranged with the measuring rod 1, the first barrel 3 is inwardly provided with a first annular groove 31 from a first side surface, an inner wall of the first barrel 3 is provided with a plurality of first ventilation holes 32, the plurality of first ventilation holes 32 are communicated with the first annular groove 31, after the gas enters the box 2, the gas is sequentially discharged through the first annular groove 31 and the first ventilation holes 32 and blown to the measuring rod 1, and the purpose of cooling the measuring rod 1 is achieved.
In the first design, in order to realize that the distance between the tip that the terminal box was kept away from to the dryer and the tip that the terminal box was kept away from to measuring stick 1 is adjustable, 3 outer walls of first barrel are equipped with the screw thread, 2 surfaces of box are equipped with the screw thread in the annular opening, the screw thread on 3 outer walls of first barrel cooperatees with the screw thread on 2 surfaces of box, make first barrel 3 remove along self axis direction through rotating first barrel 3, thereby change the dryer and keep away from the tip of terminal box and the measuring stick 1 and keep away from the distance between the tip of terminal box, and then the length of enclosing measuring stick 1 in first barrel 3 changes, ensure that the part that measuring stick 1 exposes in the air can both obtain the cooling and be unlikely to first barrel 3 and the medium contact that awaits measuring.
Or the screw thread is arranged on the inner wall of the box body 2, the outer wall of the first barrel body 3 is provided with the screw thread, the screw thread on the outer wall of the first barrel body 3 is matched with the screw thread on the inner wall of the box body 2, the first barrel body 3 can be moved along the self axis direction by rotating the first barrel body 3, so that the distance between the end part of the wind barrel far away from the junction box and the end part of the measuring rod 1 far away from the junction box is changed, and the same effect as the above is achieved.
Referring to fig. 2, in a second design, the air duct includes a plurality of second cylinders 4, only three second cylinders 4 are representatively illustrated in fig. 2, a second annular hole 41 axially penetrating through the second cylinders 4 is formed in each second cylinder 4, a plurality of second ventilation holes 42 are formed in the inner wall of each second cylinder 4, and the plurality of second ventilation holes 42 are communicated with the second annular hole 41; the three second cylinders 4 are sequentially connected, in any adjacent second cylinder 4, the second cylinder 4 far away from the box body 2 is in sliding fit in the second annular hole 41 of the second cylinder 4 close to the box body 2, the three second cylinders 4 form a telescopic structure, the end part of the second annular hole 41 on the second cylinder 4 at the first end is sealed, and the second cylinder 4 at the second end is in sliding fit in the second annular hole 41; after gas gets into in the box 2, the order discharges through second annular hole 41 and second vent hole 42 again and blows to measuring stick 1, realize the purpose to measuring stick 1 cooling, adjust the whole length of dryer through removing three second barrel 4, thereby change the dryer and keep away from the tip of terminal box and measuring stick 1 and keep away from the distance between the tip of terminal box, and then the length that surrounds measuring stick 1 in first barrel 3 changes, ensure that the part that measuring stick 1 exposes in the air can both be cooled and be unlikely to first barrel 3 and the medium contact that awaits measuring.
In this embodiment, the end of the measuring stick 1 close to the junction box is located inside the box body 2.
In another design of the case 2, the case 2 is of an annular structure and is arranged coaxially with the measuring rod 1.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. An air-cooled cooling type thermocouple is characterized by comprising a junction box, a measuring rod (1), a box body (2) and an air duct;
the measuring rod (1) is arranged on the junction box;
the box body (2) is positioned at one end, close to the junction box, of the measuring rod (1), an air inlet (21) is formed in the box body (2), and a first annular hole surrounding the measuring rod (1) is formed in the box body (2);
the dryer is installed in box (2) and extends to box (2) outside through the annular hole, and the dryer is used for supplying air to measuring stick (1), and the distance between the tip that the terminal box was kept away from to the dryer and measuring stick (1) kept away from the tip of terminal box is adjustable.
2. The air-cooled and temperature-reduced thermocouple according to claim 1, characterized in that the air duct comprises a first barrel (3), a first side of the first barrel (3) is located in the box body (2), the first barrel (3) is internally provided with a first annular groove (31) from the first side surface, the inner wall of the first barrel (3) is provided with a plurality of first ventilation holes (32), and the plurality of first ventilation holes (32) are communicated with the first annular groove (31).
3. An air-cooled and temperature-reduced thermocouple according to claim 2, characterised in that the outer wall of the first cylinder (3) is provided with screw threads, the surface of the box (2) is provided with screw threads in an annular hole, and the screw threads of the outer wall of the first cylinder (3) are matched with the screw threads of the surface of the box (2).
4. An air-cooled and temperature-reduced thermocouple according to claim 2, characterized in that the outer wall of the first cylinder (3) is provided with screw threads, the inner wall of the box body (2) is provided with screw threads, and the screw threads of the outer wall of the first cylinder (3) are matched with the screw threads of the inner wall of the box body (2).
5. The air-cooled and temperature-reduced thermocouple according to claim 1, characterized by comprising a plurality of second cylinder bodies (4), wherein a second annular hole (41) axially penetrating through the second cylinder bodies (4) is formed in each second cylinder body (4), a plurality of second vent holes (42) are formed in the inner wall of each second cylinder body (4), and the plurality of second vent holes (42) are communicated with the second annular holes (41); the plurality of second cylinders (4) are connected in sequence, in any adjacent second cylinder (4), the second cylinder (4) far away from the box body (2) is in sliding fit in the second annular hole (41) of the second cylinder (4) close to the box body (2), the end part of the second annular hole (41) on the second cylinder (4) at the first end is sealed, and the second cylinder (4) at the second end is in sliding fit in the second annular hole (41).
6. An air-cooled and temperature-reduced thermocouple according to any of claims 1-5, characterised in that the box (2) is of annular configuration and is arranged coaxially with the measuring rod (1).
7. An air-cooled and temperature-reduced thermocouple according to any of claims 1-5, characterised in that the end of the measuring rod (1) close to the terminal box is located inside the case (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111855.2U CN211147872U (en) | 2019-11-30 | 2019-11-30 | Air-cooled cooling type thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111855.2U CN211147872U (en) | 2019-11-30 | 2019-11-30 | Air-cooled cooling type thermocouple |
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| Publication Number | Publication Date |
|---|---|
| CN211147872U true CN211147872U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922111855.2U Active CN211147872U (en) | 2019-11-30 | 2019-11-30 | Air-cooled cooling type thermocouple |
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| CN (1) | CN211147872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903129A (en) * | 2021-01-25 | 2021-06-04 | 陈娜娜 | High temperature aluminium stove of motor production usefulness surveys aluminium temperature device |
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2019
- 2019-11-30 CN CN201922111855.2U patent/CN211147872U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903129A (en) * | 2021-01-25 | 2021-06-04 | 陈娜娜 | High temperature aluminium stove of motor production usefulness surveys aluminium temperature device |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210513 Address after: 210000 188 Bancang, taipingmenwai, Xuanwu District, Nanjing, Jiangsu Province Patentee after: NANJING SOURCE RICH INDUSTRIAL Co.,Ltd. Address before: 231200 Tuoji Dingyuan mansion, Feixi County, Hefei City, Anhui Province Patentee before: Chen Zubing |