Temperature detection structure of small high-temperature heater
By setting slots on the outer or inner tube of the high-temperature heating of the small high-temperature heater and installing a temperature sensor, the problem of easy damage to the temperature probe is solved, and high-precision temperature measurement is achieved without affecting the heat treatment operation.
Patent Information
- Application Number
- CN202420541079.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-20
AI Technical Summary
In existing small high-temperature heaters, the temperature probe is prone to damage and affects the passage of linear objects and the heating treatment of flowing gases.
Design a small high-temperature heater temperature detection structure, by setting slots on the high-temperature heating outer tube or inner tube and installing a temperature sensor in the slot, using the temperature transfer channel or threading hole diameter structure to achieve accurate temperature measurement to avoid affecting heat treatment Operation.
It achieves high accuracy of temperature detection, avoids damage to the temperature probe, and does not affect the passing of linear objects or the heat treatment operation of flowing gas.
Smart Images
Figure CN222481655U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heaters, in particular to a temperature detection structure of a small high-temperature heater. Background Art
[0002] In existing small high-temperature heaters for linear objects or flowing gases, a temperature probe is often installed in the inner tube of the small high-temperature heater, which makes the temperature probe easily damaged and also easily affects the heating process of the linear object and the flowing gas. Summary of the invention
[0003] The utility model aims to provide a temperature detection structure of a small high-temperature heater with simple structure and accurate temperature detection.
[0004] The technical solution to achieve the purpose of the utility model is: a small high-temperature heater temperature detection structure, including a high-temperature heating outer tube, an inner tube and a resistance wire, the inner tube is sleeved in the high-temperature heating outer tube, the resistance wire is installed between the inner tube and the high-temperature heating outer tube, the high-temperature heating outer tube is provided with a groove, and a temperature sensor is provided in the groove.
[0005] Preferably, the groove is located at the bottom of the high-temperature heating outer tube.
[0006] Preferably, the thickness of the tube wall at the bottom of the groove is 0.01 to 2 mm.
[0007] Preferably, the number of the slots is 3, which are respectively located at the right side, the middle side and the left side of the high-temperature heating outer tube.
[0008] Preferably, the inner surface of the groove is covered with a silver coating.
[0009] Preferably, the temperature sensor is arranged transversely in the slot.
[0010] Preferably, a temperature transfer channel is provided between the slot and the inner tube, and the resistance wire is arranged to avoid the temperature transfer channel.
[0011] Preferably, a first heat insulation layer is provided in the temperature transfer channel.
[0012] Preferably, the inner surface of the groove is covered with a second heat insulation layer.
[0013] Preferably, a sealing cover is provided on the slot, and the sealing cover is made of high-temperature sealant.
[0014] A temperature detection structure of a small high-temperature heater comprises a high-temperature heating outer tube, an inner tube and a resistance wire, wherein the inner tube is sleeved inside the high-temperature heating outer tube, the resistance wire is installed between the inner tube and the high-temperature heating outer tube, a groove is provided on the inner wall of the inner tube, a temperature sensor is provided in the groove, the groove is connected to a threading aperture structure, the threading aperture structure avoids the resistance wire and passes through the inner tube and the high-temperature heating outer tube to be connected to the outside of the high-temperature heating outer tube, and the cable of the temperature sensor is connected to the outside of the high-temperature heating outer tube by passing through the threading aperture structure.
[0015] Preferably, the threading aperture structure includes an inner tube opening that passes through the inner tube at the bottom of the slot and an outer tube opening that passes through the high-temperature heating outer tube at a corresponding position of the high-temperature heating outer tube, and a connecting space for cable passage is provided between the inner tube opening and the outer tube opening.
[0016] Preferably, a high-temperature insulating pipe is provided in the cable passage connecting space, and two ends of the high-temperature insulating pipe are respectively connected to the inner pipe opening and the outer pipe opening.
[0017] Preferably, the high-temperature insulating pipe is a quartz glass pipe or a high-temperature insulating porcelain pipe.
[0018] Compared with the prior art, the utility model has the following significant advantages:
[0019] 1. The technical solution of the utility model is to set a slotted temperature sensor on the inner tube or the high-temperature heating outer tube, so as to detect the temperature with high accuracy and avoid affecting the operation of linear objects passing through or the heat treatment operation of flowing gas.
[0020] 2. When the utility model arranges a slotting scheme on the high-temperature heating outer tube, accurate temperature measurement is achieved through the temperature transfer channel without any influence on the operation process.
[0021] 3. When the utility model arranges a slot on the inner tube, a hidden design of the sensor cable is realized through the threading aperture structure, thereby avoiding affecting the heat treatment operation.
[0022] The utility model is described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the temperature detection structure of a small high-temperature heater of the utility model.
[0024] Figure 2 for Figure 1 Enlarged view of the structure of the middle J part.
[0025] Figure 3 This is a schematic diagram of another temperature detection structure of a small high-temperature heater of the utility model.
[0026] Figure 4 for Figure 3 Enlarged view of the structure of the middle K section. DETAILED DESCRIPTION Example 1
[0027] like Figure 1 to Figure 2 As shown, a small high-temperature heater temperature detection structure comprises a high-temperature heating outer tube 3, an inner tube 6 and a resistance wire 5, wherein the inner tube 6 is sleeved in the high-temperature heating outer tube 3, and the resistance wire 5 is installed between the inner tube 6 and the high-temperature heating outer tube 3. A slot 8 is provided on the high-temperature heating outer tube 3, and the slot 8 is located at the bottom of the high-temperature heating outer tube 3. The thickness of the tube wall at the bottom of the slot 8 is 0.5 mm. A temperature sensor is provided in the slot 8, and the temperature sensor is arranged transversely in the slot 8. A temperature transfer channel is provided between the slot 8 and the inner tube 6, and the temperature transfer channel includes the tube wall of the inner tube 6 and the tube wall at the bottom of the slot 8, which are connected to each other through a through pipe, and the sealing of the connection must be ensured to be intact, as shown in FIG. Figure 1 and Figure 2 As shown, the resistance wire 5 avoids the arrangement of the temperature transfer channel, that is, the resistance wire 5 avoids the through pipe, a first heat insulation layer 81 is provided in the temperature transfer channel, the inner surface of the slot 8 is covered with a second heat insulation layer 82, and a sealing cover 84 is provided on the slot 8. The sealing cover 84 is made of high-temperature sealant, and the sealing cover 84 seals the temperature sensor in the slot 8.
[0028] Working principle: After the resistance wire 5 is heated, it forms heat radiation to the inner tube 6, and the through-pipe introduces the temperature in the inner tube into the slot 8. The first insulation layer 81 and the second insulation layer 82 shield and isolate the heat radiation of the heating wire to the through-pipe, and the sealing cover 84 can effectively prevent the heat loss of the slot 8, so that the temperature sensor in the slot 8 can obtain the accurate temperature that is completely consistent with the temperature in the inner tube 6. The technical solution of the utility model is to set a slot-mounted temperature sensor on the high-temperature heating outer tube, and realize accurate temperature measurement through the temperature transfer channel, which completely avoids affecting the operation of linear objects passing through or the heat treatment operation of flowing gas.
[0029] In addition to the above embodiments, the utility model uses three slots, which are respectively located on the right side, middle part and left side of the high-temperature heating outer tube, and there are also three corresponding temperature transfer channels and sensors, which can more accurately detect the overall temperature conditions in the inner tube 6.
[0030] In addition, in addition to the above-mentioned embodiments, the through-pipe is generally made of quartz glass, and can achieve the dual functions and effects of insulation and passage through the through-connection with the inner tube 6 and the bottom tube wall of the slot 8, and the production cost is relatively low; of course, the commonly used insulating sleeves on the market can also be used for connection, and the production cost is slightly higher. Example 2
[0031] like Figure 3 to Figure 4 As shown, a temperature detection structure of a small high-temperature heater comprises a high-temperature heating outer tube 3, an inner tube 6 and a resistance wire 5, wherein the inner tube 6 is sleeved in the high-temperature heating outer tube 3, the resistance wire 5 is installed between the inner tube 6 and the high-temperature heating outer tube 3, a slot 8 is provided on the inner wall of the inner tube 6, a temperature sensor is provided in the slot 8, the slot 8 is connected to a threading aperture structure, the threading aperture structure avoids the resistance wire 5 and passes through the inner tube 6 and the high-temperature heating outer tube 3 to be connected to the outside of the high-temperature heating outer tube 3, the cable of the temperature sensor passes through the threading aperture structure. The wire aperture structure is connected to the outside of the high-temperature heating outer tube 3; the wire threading aperture structure includes an inner tube opening at the bottom of the slot 8 that penetrates the inner tube 6 and an outer tube opening at a corresponding position of the high-temperature heating outer tube 3 that penetrates the high-temperature heating outer tube 3, and a cable passing communication space is provided between the inner tube opening and the outer tube opening, and a high-temperature insulating pipe is provided in the cable passing communication space, and both ends of the high-temperature insulating pipe are respectively connected to the inner tube opening and the outer tube opening, and the high-temperature insulating pipe is a quartz glass pipe, and the quartz glass pipe passes through the avoidance 50 of the resistance wire 5.
[0032] Working principle: After the resistance wire 5 is heated, it forms heat radiation to the inner tube 6, thereby performing heat treatment operations. The temperature sensor can directly detect the working temperature inside the inner tube 6 with high temperature detection accuracy. The temperature sensor is installed in the slot 8 to avoid affecting the linear object passing operation or the heat treatment operation of the flowing gas. The hidden design of the sensor cable is realized through the threading aperture structure to avoid affecting the heat treatment operation inside the inner tube 6.
[0033] In this embodiment, in addition to the above implementation, a high-temperature insulating porcelain tube can be used to replace the quartz glass tube, which is also a feasible replacement solution and can also achieve the above technical effect.
[0034] In addition to the above-mentioned embodiments, other undescribed implementation methods should also be within the scope of protection of the present utility model. The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Technicians in the technical field to which the present utility model belongs may make various modifications or supplements to the described specific embodiments or replace them in a similar manner, but they will not deviate from the spirit of the present utility model or exceed the scope defined by the attached claims. Although this article is explained through specific terms, it does not exclude the possibility of using other terms. These terms are used only to conveniently describe and explain the essence of the present utility model. Interpreting them as any additional restrictions is contrary to the spirit of the present utility model.
Claims
1. A temperature detection structure for a small high temperature heater, characterized in that: The invention comprises a high-temperature heating outer tube (3), an inner tube (6) and a resistance wire (5), wherein the inner tube (6) is sleeved inside the high-temperature heating outer tube (3), the resistance wire (5) is installed between the inner tube (6) and the high-temperature heating outer tube (3), and the high-temperature heating outer tube (3) is provided with a slot (8), wherein a temperature sensor is provided inside the slot (8).
2. The temperature detection structure of a small high temperature heater according to claim 1, characterized in that: The slot (8) is located at the bottom of the high-temperature heating outer tube (3).
3. The temperature detection structure of a small high temperature heater according to claim 1, characterized in that: The thickness of the tube wall at the bottom of the slot (8) is 0.01 to 2 mm.
4. The temperature detection structure of a small high temperature heater according to claim 1, characterized in that: The number of the slots (8) is three, which are respectively located on the right side, the middle side and the left side of the high-temperature heating outer tube (3).
5. The temperature detection structure of a small high temperature heater according to claim 1, characterized in that: The inner surface of the groove (8) is covered with a silver coating.
6. The temperature detection structure of a small high temperature heater according to claim 1, characterized in that: The temperature sensor is arranged transversely in the slot (8).
7. The temperature detection structure of a small high temperature heater according to claim 1, characterized in that: A temperature transfer channel is provided between the slot (8) and the inner tube (6), and the resistance wire (5) is arranged to avoid the temperature transfer channel.
8. The temperature detection structure of a small high temperature heater according to claim 7, characterized in that: A first heat insulation layer (81) is provided in the temperature transfer channel.
9. The temperature detection structure of a small high temperature heater according to claim 8, characterized in that: The inner surface of the groove (8) is covered with a second heat insulation layer (82).
10. The temperature detection structure of a small high temperature heater according to claim 7, characterized in that: A sealing cover (84) is provided on the slot (8), and the sealing cover (84) is made of high-temperature sealant.
11. A temperature detection structure for a small high temperature heater, characterized in that: The invention comprises a high-temperature heating outer tube (3), an inner tube (6) and a resistance wire (5), wherein the inner tube (6) is sleeved inside the high-temperature heating outer tube (3), the resistance wire (5) is installed between the inner tube (6) and the high-temperature heating outer tube (3), a groove (8) is provided on the inner wall of the inner tube (6), a temperature sensor is provided in the groove (8), the groove (8) is connected to a threading aperture structure, the threading aperture structure avoids the resistance wire (5) and passes through the inner tube (6) and the high-temperature heating outer tube (3) to be connected to the outside of the high-temperature heating outer tube (3), and the cable of the temperature sensor is connected to the outside of the high-temperature heating outer tube (3) by passing through the threading aperture structure.
12. The temperature detection structure of a small high temperature heater according to claim 11, characterized in that: The wire threading aperture structure comprises an inner tube opening penetrating the inner tube (6) at the bottom of the slot (8) and an outer tube opening penetrating the high-temperature heating outer tube (3) at a corresponding position of the high-temperature heating outer tube (3), and a connecting space for the cable to pass through is provided between the inner tube opening and the outer tube opening.
13. The temperature detection structure of a small high temperature heater according to claim 12, characterized in that: A high-temperature insulating pipe is arranged in the cable passage communication space, and two ends of the high-temperature insulating pipe are respectively connected with the inner pipe opening and the outer pipe opening.
14. The temperature detection structure of a small-sized high-temperature heater according to claim 13, characterized in that: The high temperature insulating pipe is a quartz glass pipe or a high temperature insulating porcelain pipe.