Rapid thermocouple
By designing equal-diameter sections and flared sections on the inner wall of the paper tube, combined with the structure of variable-diameter sections on the support, the production process of fast thermocouples is simplified, solving the problems of complex and high cost of traditional structures, and achieving more efficient production and product uniformity.
Patent Information
- Application Number
- CN202520659589.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Traditional fast thermocouples have complex structures, complex manufacturing processes, and high costs. Furthermore, they are prone to leakage during refractory material casting, which affects product uniformity and production efficiency.
The paper tube is designed with an equal diameter section and a flared section on the inner wall, and a variable diameter section is provided on the support. The quartz tube is fixed on the support and threaded with a ferrule. The refractory material is cured on the support. The paper tube is sealed with a sealing plate, eliminating the need for refractory putty and aluminum cap. The refractory material is cured by a mold, simplifying the production process.
It reduced production costs, improved production efficiency, ensured product uniformity, and reduced labor requirements.
Smart Images
Figure CN223896917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermocouple technology, specifically to a fast thermocouple. Background Technology
[0002] Traditional fast thermocouples consist of a plastic support, a quartz tube, a refractory head, and a protective aluminum cap. Compensating wires are embedded in the plastic support, and thermocouple wires are threaded through the quartz tube. The thermocouple wires and compensating wires are connected. Then, the refractory head is assembled, and prepared refractory cement is poured into the upper part of the refractory head. Finally, the protective aluminum cap is assembled. All components are assembled in this way to form the thermocouple head. The refractory head on the thermocouple head is then pressed into a paper tube to form a fast thermocouple. Traditional fast thermocouples have a complex structure, complex manufacturing process, and high cost.
[0003] Patent document CN218748487U discloses a fast thermocouple bracket and a fast thermocouple. In this document, after fixing the bracket and a quartz tube, the bracket is placed inside a paper tube, and then refractory material is cast from the top of the paper tube. Finally, a sealing plate is used to close the top of the paper tube. This assembly method results in some refractory material leaking to the bottom of the bracket during casting, making it impossible to guarantee the uniformity of all products after casting. Furthermore, casting inside the paper tube is inconvenient and inefficient. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a fast thermocouple that ensures product uniformity and improves production efficiency.
[0005] A fast thermocouple includes a paper tube, a support, and a sealing plate.
[0006] The inner wall of the paper tube includes a constant diameter section and a flared section located above the constant diameter section, the diameter of which gradually decreases from top to bottom.
[0007] The support has a variable diameter section, and positive and negative compensating wires are embedded in the support. A quartz tube is fixed to the support, and positive and negative dipole wires are inserted into the quartz tube. The positive and negative dipole wires are connected, the positive dipole wire is connected to the positive compensating wire, and the negative dipole wire is connected to the negative compensating wire. Refractory material is cured on the support.
[0008] The bracket is placed inside the paper tube, and the variable diameter section of the bracket contacts and abuts against the flared section of the paper tube. The sealing plate seals the upper end of the paper tube.
[0009] Preferably, the positive and negative electrode wires are welded together.
[0010] Preferably, the positive compensation wire is welded to the positive dipole wire.
[0011] Preferably, the negative electrode compensating wire is welded to the negative electrode dipole wire.
[0012] Preferably, the upper end of the quartz tube is 13 mm higher than the top wall of the refractory material.
[0013] Preferably, the distance between the upper end of the quartz tube and the upper end of the paper tube is 2mm-3mm.
[0014] Preferably, the sealing plate is cardboard.
[0015] The beneficial effects of this utility model are as follows: In this technical solution, after installing the quartz tube on the bracket, refractory material is cured on the bracket. Then, the paper tube is placed vertically with the flared section above the constant diameter section. The bracket is inserted into the paper tube from the top, and the variable diameter section of the bracket contacts and abuts against the flared section of the inner wall of the paper tube. Finally, a sealing plate is used to seal the top of the paper tube to protect the quartz tube inside, thus completing the assembly. Compared with traditional thermocouples, the fast thermocouple of this structure does not require the use of refractory putty and aluminum caps during the production process, reducing production costs, improving production efficiency, and reducing labor. At the same time, curing the refractory material on the bracket using a mold can ensure the uniformity of the product and improve production efficiency. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0017] Figure 1 This is a front sectional view of the present invention.
[0018] In the attached diagram, 1-paper tube, 2-support, 3-refractory material, 4-quartz tube, 5-sealing plate. Detailed Implementation
[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0021] Example 1
[0022] like Figure 1 As shown, this embodiment provides a fast thermocouple, including a paper tube 1, a support 2, and a sealing plate 5.
[0023] The inner wall of the paper tube 1 includes a constant diameter section and a flared section located above the constant diameter section, the diameter of which gradually decreases from top to bottom.
[0024] The support 2 has a variable diameter section, and positive and negative compensating wires are embedded in the support 2. A quartz tube 4 is fixed to the support 2, and positive and negative dipole wires are inserted into the quartz tube 4. The positive and negative dipole wires are connected, the positive dipole wire is connected to the positive compensating wire, and the negative dipole wire is connected to the negative compensating wire. Refractory material 3 is cured on the support 2.
[0025] The bracket 2 is placed inside the paper tube 1, and the variable diameter section of the bracket 2 contacts and abuts against the flared section of the paper tube 1. The sealing plate 5 seals the upper end of the paper tube 1.
[0026] In this embodiment, after installing the quartz tube 4 on the support 2, the refractory material 3 is cured on the support 2. Then, the paper tube 1 is placed vertically with the flared section above the constant diameter section. The support 2 is inserted into the paper tube 1 from the top, and the variable diameter section of the support 2 contacts and abuts against the flared section of the inner wall of the paper tube 1. Then, the sealing plate 5 is used to seal the top of the paper tube 1 to protect the quartz tube 4 inside the paper tube 1, thus completing the assembly. Compared with traditional thermocouples, the fast thermocouple of this structure does not require the use of refractory putty and aluminum caps during the production process, reducing production costs, improving production efficiency, and reducing labor. At the same time, curing the refractory material 3 on the support 2 using a mold can ensure the uniformity of the product and improve production efficiency.
[0027] In this embodiment, the function of the flared section of the paper tube 1 is twofold: firstly, to facilitate the insertion of the support 2 into the paper tube 1; and secondly, after the support 2 is inserted into the paper tube 1, the variable diameter section of the support 2 contacts and abuts against the flared section of the paper tube 1, thereby limiting the position of the support 2.
[0028] In this embodiment, after the quartz tube 4 is installed on the bracket 2, the bracket 2 is placed into a mold to cast the refractory material 3, thereby solidifying the refractory material 3 onto the bracket 2. The refractory material 3 fixes the quartz tube 4 onto the bracket 2.
[0029] The welding of the positive and negative dipole wires is described in this embodiment.
[0030] In this embodiment, the positive compensation wire is welded to the positive dipole wire.
[0031] In this embodiment, the negative electrode compensating wire is welded to the negative electrode dipole wire.
[0032] In this embodiment, the upper end of the quartz tube 4 is 13mm higher than the top wall of the refractory material 3. The portion of the quartz tube 4 that is higher than the refractory material 3 is the measuring part. In this embodiment, the height of the measuring part is set at 13mm.
[0033] In this embodiment, the distance between the upper end of the quartz tube 4 and the upper end of the paper tube 1 is 2mm-3mm.
[0034] In this embodiment, the sealing plate 5 is a cardboard.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A fast thermocouple, characterized in that, Includes paper tube (1), support (2), and sealing plate (5), The inner wall of the paper tube (1) includes a constant diameter section and a flared section located above the constant diameter section, the diameter of which gradually decreases from top to bottom. The bracket (2) has a variable diameter section. A positive compensating wire and a negative compensating wire are embedded in the bracket (2). A quartz tube (4) is fixed to the bracket (2). A positive dipole wire and a negative dipole wire are inserted into the quartz tube (4). The positive dipole wire and the negative dipole wire are connected. The positive dipole wire is connected to the positive compensating wire, and the negative dipole wire is connected to the negative compensating wire. Refractory material (3) is cured on the bracket (2). The bracket (2) is placed inside the paper tube (1), and the variable diameter section of the bracket (2) contacts and abuts against the flared section of the paper tube (1). The sealing plate (5) seals the upper end of the paper tube (1).
2. The fast thermocouple according to claim 1, characterized in that, The positive and negative electrode wires are welded together.
3. A fast thermocouple according to claim 1, characterized in that, The positive compensation wire is welded to the positive dipole wire.
4. A fast thermocouple according to claim 1, characterized in that, The negative electrode compensating wire is welded to the negative electrode dipole wire.
5. A fast thermocouple according to claim 1, characterized in that, The upper end of the quartz tube (4) is 13 mm higher than the top wall of the refractory material (3).
6. A fast thermocouple according to claim 1, characterized in that, The distance between the upper end of the quartz tube (4) and the upper end of the paper tube (1) is 2mm-3mm.
7. A fast thermocouple according to claim 1, characterized in that, The sealing plate (5) is made of cardboard.