CN218444198U - Novel heating furnace temperature measuring device - Google Patents
Novel heating furnace temperature measuring device Download PDFInfo
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- CN218444198U CN218444198U CN202221596876.3U CN202221596876U CN218444198U CN 218444198 U CN218444198 U CN 218444198U CN 202221596876 U CN202221596876 U CN 202221596876U CN 218444198 U CN218444198 U CN 218444198U
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Abstract
The utility model discloses a novel heating furnace temperature measuring device, the device includes: the thermocouple, the protection inner tube, the protection outer tube and the protection hook; the protection inner tube is conical and is positioned outside the thermocouple, and a thermode of the thermocouple extends out of the top end of the protection inner tube; the protective outer pipe is conical and wraps the outer part of the protective inner pipe; one end of the protective hook is fixed on the bottom surface of the protective outer tube, and the other end of the protective hook is fixed on a furnace top steel structure of the heating furnace and connected with the novel heating furnace temperature measuring device and the furnace top of the heating furnace. Can be through the design circular cone sleeve form to install the thermocouple inside here, protect the thermocouple not receive the washing and the corruption of the high temperature flue gas in the stove, improve the life of thermocouple, reduce use cost.
Description
Technical Field
The invention relates to the technical field of heating furnace temperature measuring devices, in particular to a novel heating furnace temperature measuring device.
Background
At present, in steel rolling systems of steel enterprises, a steel rolling heating furnace is provided, which is mainly used for heating before rolling billets, and a strict heating process is provided in the heating process, which is mainly used for controlling the temperature of the billets in the heating process. In the prior art, in the process of controlling the temperature of the heating furnace, the temperature is detected mainly by a temperature thermocouple arranged on the top of the heating furnace, the thermocouple is generally arranged on the upper part of the top of the heating furnace and is exposed to the outside of the top of the heating furnace by 100-150 mm, and the temperature detected by the thermocouple is used as the execution temperature of the heating process. The thermocouple installation mode adopted by the heating furnace and the installation distance between the thermocouple and the furnace top are commonly used as the currently used temperature measurement mode, and the temperature detected by the thermocouple is also used as the control temperature of the billet heating process.
However, the installation method of the thermocouple used for all the steel rolling heating furnaces at present is used as a temperature detection means of the heating process, and the following problems usually occur in the use process:
the heating process temperature of the steel billet is generally formulated according to an iron-carbon equilibrium phase diagram in ferrous metallurgy, the temperature of the heating process is mainly the surface temperature of the steel billet, the distance between a conventionally installed thermocouple and the steel billet is about 1500mm, and the temperature detected by the thermocouple cannot represent the surface temperature of the steel billet, so that great errors are caused for formulating the steel billet heating process, particularly in the heating process of special steel types, the temperature in the heating process is inaccurate, great heating quality is brought to hot working of the special steel, the heating process is not suitable, great quality accidents occur to the steel in the rolling process, and even waste products occur.
The installation of conventional thermocouple generally uses ceramic pipeline as the protective case of thermocouple in high temperature furnace, use heat-resistant steel as the protective case in the low temperature furnace, general diameter is 30-50 mm, ceramic protective case outside directly faces the dashing of high temperature flame, in the interim in-process of overhauing, the heating furnace stops the stove cooling, outside ceramic protective case can appear cold shrinkage crackle because the temperature drop, some even appear falling the piece, thereby influence the temperature measurement accuracy of thermocouple, and this type of conventional thermocouple life cycle is short, general life is in 1-2 years, use cost is higher.
Therefore, there is a need for a new technical solution to solve the above problems.
SUMMERY OF THE UTILITY MODEL
For overcoming the problem that exists among the correlation technique, the utility model discloses a novel heating furnace temperature measuring device is provided, the device includes: the thermocouple, the protection inner tube, the protection outer tube and the protection hook;
the protection inner tube is conical and is positioned outside the thermocouple, and a thermode of the thermocouple extends out of the top end of the protection inner tube;
the protective outer pipe is conical and wraps the outer part of the protective inner pipe;
one end of the protective hook is fixed on the bottom surface of the protective outer tube, and the other end of the protective hook is fixed on a furnace top steel structure of the heating furnace and connected with the novel heating furnace temperature measuring device and the furnace top of the heating furnace.
Optionally, the apparatus further comprises: an anchoring hook;
the anchoring hooks are fixed outside the protective inner pipe and distributed on the side surface of the protective inner pipe;
the protective outer pipe is connected with the protective inner pipe through an anchoring hook.
Optionally, the anchoring hook is a Y-shaped anchoring hook;
the Y-shaped anchoring hooks are respectively fixed on two side faces of the protective outer tube, and the size of the Y-shaped anchoring hooks is sequentially increased from the bottom face to the top end of the protective outer tube.
Optionally, the Y-shaped anchoring hook is welded to the outside of the protective inner tube.
Optionally, the length of the Y-shaped anchoring hook ranges from 50mm to 100 mm.
Optionally, the protective outer tube is made of a refractory material and is poured outside the protective inner tube.
Optionally, the protective inner tube is made of a steel material and is of a hollow structure.
Optionally, the thermocouple is detachably connected with the protection inner tube of the hollow structure.
Optionally, the top end of the conical protection inner tube is a circular surface;
the diameter of the top end of the circular surface is 80mm, and the diameter of the bottom surface of the conical protection inner tube is 200mm.
Optionally, the length of the hot electrode of the thermocouple extending out of the top end of the protective inner tube ranges from 30mm to 50 mm.
In conclusion, the novel heating furnace temperature measuring device provided by the invention can bring the following beneficial effects:
1. the thermocouple is arranged in the castable protective sleeve, the service life is 3-5 years, and the use cost is greatly reduced;
2. the inner part of the castable protective sleeve is designed into a conical sleeve type, and the thermocouple is arranged in the castable protective sleeve, so that the thermocouple can be well protected from being washed and corroded by high-temperature flue gas in a furnace;
3. at the tip of pouring material protective case, stretch out the tip of thermocouple, apart from steel billet surface interval 100mm to the temperature on better induction steel billet surface, this tip mainly feels the thermoelectric potential, and the thermoelectric potential reaches the instrument through compensating wire, thereby shows the temperature value, detects the temperature on steel billet surface, and the accuracy is higher.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:
FIG. 1 is a schematic structural diagram illustrating a novel furnace temperature measuring device according to an exemplary embodiment;
fig. 2 is a schematic view of an anchoring hook according to the embodiment shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram illustrating a novel heating furnace temperature measuring device according to an exemplary embodiment, and as shown in fig. 1, the device includes: a thermocouple 110, a protective inner tube 120, a protective outer tube 130, and a protective hanger 140; the protection inner tube 120 is conical and is located outside the thermocouple 110, and the hot electrode 111 of the thermocouple 110 protrudes out of the top end of the protection inner tube 120; the protective outer tube 130 is conical and wraps the outer portion of the protective inner tube 120; one end of the protection hook 140 is fixed on the bottom surface of the protection outer tube 130, and the other end is fixed on a steel structure 230 of a furnace top 220 of the heating furnace 210, and is connected with the novel heating furnace temperature measuring device and the furnace top 220 of the heating furnace 210.
The utility model discloses an in the embodiment provide a novel heating furnace temperature measuring device, the thermocouple parcel that will be used for measuring the temperature in the heating furnace stove is at conical sheathed tube (protection inner tube and protection outer tube), and protection thermocouple that can be fine does not receive the dashing of interior high temperature flue gas and erode and corrode, prolongs the life of thermocouple, reduces heating furnace temperature measuring device's use cost. In addition, the hot electrode 111 of the thermocouple 110 protrudes from the top end of the protective inner tube 120 into the furnace to better measure the temperature inside the furnace.
The temperature thermocouple is arranged in the inner tube of the thermocouple, and the length of the thermocouple can be designed to be 1000-1500 mm in order to reduce the cost of the thermocouple. In the process of installing the thermocouple, a zirconium-containing refractory fiber blanket is filled between the inner tube of the thermocouple and used for preventing high-temperature flue gas from impacting the wiring head part of the thermocouple under the action of furnace pressure and simultaneously performing a heat preservation action on the thermocouple; the thermocouple is exposed out of the lower conical opening of the protection tube by 30-50 mm at the lower part of the inner tube of the thermocouple, and the distance between the thermocouple and the surface of the billet is 100mm, so that the temperature of the billet can be conveniently sensed to generate thermoelectric force.
In addition, for the whole detection device, the device needs to be installed on the upper part of a furnace top steel structure so as to ensure safe use and maintenance in the using process. The small hanging beam steel structure of the furnace top anchoring hook is arranged on the upper portion of the furnace top, so that the thermocouple inner tube protecting hook can be connected, welded or riveted with the steel structure and the small hanging beam steel structure of the furnace top by means of the steel structure, and later overhauling and use are facilitated. In the design of the product, the temperature measuring device of the thermocouple is arranged and is a once-for-all work, and when the thermocouple is subsequently tested, the thermocouple can be directly taken out from the inner tube of the thermocouple.
The outer protection tube 130 is made of a refractory material and is poured outside the inner protection tube 120. The protective inner tube 120 is made of steel material and has a hollow structure; the thermocouple 110 is detachably connected to the hollow inner protective tube 120.
Exemplarily, because the temperature in the heating furnace is very high, can both reach more than 1000 ℃ usually, the thermocouple 110 is extremely easily corroded by the high temperature flue gas that produces under the high temperature state, consequently adopts the novel heating furnace temperature measuring device in the embodiment of the utility model discloses protect the thermocouple. Further, in order to enhance the high temperature resistance and corrosion resistance of the novel heating furnace temperature measuring device, the protective outer tube 130 is made of a refractory material and is poured outside the protective inner tube 120. The protective inner tube 120 is made of steel material, and is wrapped outside the thermocouple 110 to protect the thermocouple 110, and the inner portion is of a hollow structure. The thermocouple 110 may be inserted into the protective inner tube 120 from the bottom surface of the protective inner tube 120, and the thermode 111 may be protruded from the top end of the protective inner tube 120, or the thermocouple 110 may be removed from the bottom surface of the protective inner tube 120 at any time if the thermocouple 110 needs to be replaced or repaired during use.
Further, in order to prevent the thermocouple 110 from moving left and right (i.e., to fix the position of the thermocouple 110) when the thermocouple 110 is located inside the protective inner tube 120, asbestos wool is also filled into a gap in the protective inner tube 120 after the thermocouple 110 is normally placed into the protective inner tube 120 from the bottom surface, so that the thermocouple 110 is fixed in the protective inner tube 120.
Wherein, the top end of the conical protection inner tube 120 is a circular surface; the diameter of the top end of the circular surface is 80mm, and the diameter of the bottom surface of the conical protection inner tube 120 is 200mm. The length of the hot electrode 111 of the thermocouple 110 protruding out of the top end of the protective inner tube ranges from 30mm to 50 mm.
Fig. 2 is a schematic view of an anchoring hook according to fig. 1, the device further comprising, as shown in fig. 2: an anchoring hook 150; the anchoring hooks 150 are fixed outside the inner protection tube 120 and distributed on the side of the inner protection tube 120; the outer protection pipe 130 is connected to the inner protection pipe 120 by an anchoring hook 150. The anchoring hook 150 is a Y-shaped anchoring hook; the Y-shaped anchoring hooks are respectively fixed on two side surfaces of the protective outer tube, and the size of the Y-shaped anchoring hooks is sequentially increased from the bottom surface to the top end on the protective outer tube.
Wherein, the Y-shaped anchoring hook is welded outside the protective inner tube. The length of the Y-shaped anchoring hook ranges from 50mm to 100 mm.
Illustratively, a plurality of Y-shaped anchoring hooks are welded on the outer part of the conical tube, the length of each Y-shaped anchoring hook is 50-100 mm, the anchoring hooks are arranged on the basis that the Y-shaped anchoring hooks with small welding lengths are welded on the upper part of the conical tube, the Y-shaped anchoring hooks with long welding lengths are welded on the lower part of the conical tube, and finally the anchoring hooks are arranged in a conical shape. This Y type anchor hook is fixed outside the protection inner tube through the welded mode, plays the effect of connecting protection inner tube and protection outer tube, so, when the outside refractory material of pouring of protection inner tube, refractory material pours on this Y type anchor hook, further fixes the connection between protection inner tube and the protection outer tube.
The utility model discloses a novel heating furnace temperature measuring device, the device includes: the thermocouple, the protection inner tube, the protection outer tube and the protection hook; the protection inner tube is conical and is positioned outside the thermocouple, and a thermode of the thermocouple extends out of the top end of the protection inner tube; the protective outer pipe is conical and wraps the outer part of the protective inner pipe; one end of the protective hook is fixed on the bottom surface of the protective outer tube, and the other end of the protective hook is fixed on a furnace top steel structure of the heating furnace and connected with the novel heating furnace temperature measuring device and the furnace top of the heating furnace. Can be through the design circular cone sleeve form to install the thermocouple inside here, protect the thermocouple not receive the washing and the corruption of the high temperature flue gas in the stove, improve the life of thermocouple, reduce use cost.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a novel heating furnace temperature measuring device which characterized in that, the device includes: the thermocouple, protect the inner pipe, protect the outer pipe and protect the hook;
the protection inner tube is conical and is positioned outside the thermocouple, and a thermode of the thermocouple extends out of the top end of the protection inner tube;
the protective outer pipe is conical and wraps the outer part of the protective inner pipe;
one end of the protective hook is fixed on the bottom surface of the protective outer tube, and the other end of the protective hook is fixed on a furnace top steel structure of the heating furnace and connected with the novel heating furnace temperature measuring device and the furnace top of the heating furnace.
2. The novel heating furnace temperature measuring device according to claim 1, further comprising: an anchoring hook;
the anchoring hooks are fixed outside the protective inner pipe and distributed on the side surface of the protective inner pipe;
the protective outer pipe is connected with the protective inner pipe through an anchoring hook.
3. The novel heating furnace temperature measuring device according to claim 2, wherein the anchoring hook is a Y-shaped anchoring hook;
the Y-shaped anchoring hooks are respectively fixed on two side faces of the protective outer tube, and the size of the Y-shaped anchoring hooks is sequentially increased from the bottom face to the top end of the protective outer tube.
4. The novel heating furnace temperature measuring device according to claim 3, wherein the Y-shaped anchoring hook is welded outside the protective inner tube.
5. The novel heating furnace temperature measuring device according to claim 3, wherein the length of the Y-shaped anchoring hook ranges from 50mm to 100 mm.
6. The novel heating furnace temperature measuring device according to claim 1, wherein the protective outer tube is made of a refractory material and is poured outside the protective inner tube.
7. The novel heating furnace temperature measuring device according to claim 1, wherein the protective inner tube is made of steel and is of a hollow structure.
8. The novel heating furnace temperature measuring device according to claim 7, wherein the thermocouple is detachably connected with the protective inner tube of the hollow structure.
9. The novel heating furnace temperature measuring device according to claim 1, wherein the top end of the conical protective inner tube is a circular surface;
the diameter of the top end of the circular surface is 80mm, and the diameter of the bottom surface of the conical protection inner tube is 200mm.
10. The novel heating furnace temperature measuring device according to claim 1, wherein the length of the hot electrode of the thermocouple extending out of the top end of the protective inner tube ranges from 30mm to 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221596876.3U CN218444198U (en) | 2022-06-23 | 2022-06-23 | Novel heating furnace temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221596876.3U CN218444198U (en) | 2022-06-23 | 2022-06-23 | Novel heating furnace temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218444198U true CN218444198U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221596876.3U Active CN218444198U (en) | 2022-06-23 | 2022-06-23 | Novel heating furnace temperature measuring device |
Country Status (1)
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|---|---|
| CN (1) | CN218444198U (en) |
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2022
- 2022-06-23 CN CN202221596876.3U patent/CN218444198U/en active Active
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