Ore pulp temperature detection device for dissolving-out double-pipe heat exchanger
By welding temperature sensors and armored thermal resistors to the outer wall of the casing, the problem of easy damage to inserted temperature detection instruments is solved, and high-precision and stable temperature measurement is achieved during the Bayer process alumina production, avoiding equipment damage and production downtime.
Patent Information
- Application Number
- CN202422857947.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In the prior art, plug-in temperature detection instruments are easily damaged during the Bayer process alumina production process, resulting in inaccurate or impossible temperature measurement, affecting process production, and requiring shutdown operations for replacement.
The temperature sensing element is fixed on the outer wall of the casing, and the armored thermal resistor is set inside the temperature sensing element. The temperature is led out through the lead wire and the junction box to avoid direct contact with the medium. The use of platinum temperature sensing element ensures high-precision measurement.
It can effectively measure the temperature of the medium in the casing without stopping the machine, avoid the wear of the temperature measuring element, and ensure the accuracy of temperature detection and the stability of the equipment.
Smart Images
Figure CN223376777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to temperature measurement using thermoelectric elements, in particular to a slurry temperature detection device for a dissolution casing heat exchanger. Background Art
[0002] Traditional methods for measuring medium temperature mostly use insertion-type temperature detection instruments. During the Bayer process alumina production, the process is prone to scarring and corrosion, especially during the dissolution stage. If an insertion thermometer that comes into direct contact with the medium is used, the instrument's protective tube will wear out due to long-term erosion by the medium, causing damage to the temperature detection instrument, inaccurate temperature measurement, or the inability to effectively measure the medium temperature. If a damaged instrument needs to be replaced, the operation must be performed only when the production process is shut down. Furthermore, damage to the temperature detection instrument can cause the pneumatic control valve on the heating steam pipe of the dissolution shell-and-tube heat exchanger to fail to operate effectively, thereby affecting the heat exchange of the slurry in the shell-and-tube heat exchanger and the smooth progress of the process production. Summary of the Invention
[0003] In order to solve the above problems, the utility model provides a slurry temperature detection device for a dissolution shell and tube heat exchanger, which can not only effectively measure the temperature of the medium in the shell, but also avoid damage caused by wear of the temperature measuring element probe.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a slurry temperature detection device for a dissolution shell and tube heat exchanger, comprising a temperature sensing component, which is fixed to the outer wall of the shell, the detection end of the armored thermal resistor is arranged inside the temperature sensing component, and the other end is provided with a protective cap, one end of the lead wire penetrates the protective cap and is connected to the armored thermal resistor, and the other end is connected to the junction box.
[0005] The armored thermal resistor and the temperature sensing element are fixed by tightening screws.
[0006] The temperature sensing element is fixed to the sleeve by welding.
[0007] The temperature sensing element is made of platinum.
[0008] The junction box is fixedly mounted on the mounting rack.
[0009] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention welds a temperature sensing element on the outer wall of the casing, sets an armored thermal resistor inside the temperature sensing element, leads out the measured temperature through leads and a junction box, and then performs corresponding temperature correction on the measured value to obtain the temperature of the medium in the casing, which can effectively avoid contact between the temperature measuring element and the medium in the casing, and avoid damage to the instrument caused by wear. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The present invention will be further described below with reference to the accompanying drawings:
[0011] Figure 1 It is a structural diagram of the utility model;
[0012] 1. Temperature sensing element; 2. Bushing; 3. Armored thermal resistor; 4. Protective cap; 5. Lead wires; 6. Junction box; 7. Tightening screws; 8. Mounting rack. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.
[0014] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments. Example
[0015] like Figure 1 As shown, the utility model provides a slurry temperature detection device for a dissolution shell and tube heat exchanger, including a temperature sensing component 1, which is fixed to the outer wall of the sleeve 2, and the detection end of the armored thermal resistor 3 is arranged inside the temperature sensing component 1, and the other end is provided with a protective cap 4, one end of the lead wire 5 passes through the protective cap 4 and is connected to the armored thermal resistor 3, and the other end is connected to the junction box 6.
[0016] Specifically, the armored thermal resistor 3 is fixed to the temperature sensing element 1 by tightening screws 7 , the temperature sensing element 1 is fixed to the sleeve 2 by welding, the temperature sensing element 1 is made of platinum, and the junction box 6 is fixedly mounted on the mounting frame 8 .
[0017] A temperature sensing element 1, made of platinum and ensuring high-precision temperature measurement, is welded to the outer wall of the casing 2. An armored thermal resistor 3 is positioned within the sensing element 1 and secured with a tightening screw 7. The measured temperature is output via leads 5 and a junction box 6. A protective cap 4 supports and protects the thermal resistor 3, ensuring stable operation. The measured value is then corrected for temperature to determine the temperature of the medium within the casing 2. This effectively prevents contact between the temperature measuring element and the medium within the casing 2, preventing damage to the instrument due to wear.
[0018] In addition to the above-mentioned preferred embodiments, the present invention has other implementation methods. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.
Claims
1. A slurry temperature detection device for a dissolution shell-and-tube heat exchanger, characterized in that: The invention comprises a temperature sensing element (1), wherein the temperature sensing element (1) is fixed on the outer wall of the sleeve (2), a detection end of an armored thermal resistor (3) is arranged inside the temperature sensing element (1), and the other end is provided with a protective cap (4), one end of a lead wire (5) penetrates the protective cap (4) and is connected to the armored thermal resistor (3), and the other end is connected to a junction box (6).
2. The slurry temperature detection device for a dissolution shell-and-tube heat exchanger according to claim 1, characterized in that: The armored thermal resistor (3) and the temperature sensing element (1) are fixed via a tightening screw (7).
3. The slurry temperature detection device for a dissolution shell-and-tube heat exchanger according to claim 1, characterized in that: The temperature sensing element (1) is fixed to the sleeve (2) by welding.
4. The slurry temperature detection device for a dissolution shell-and-tube heat exchanger according to claim 1, characterized in that: The temperature sensing element (1) is made of platinum.
5. The slurry temperature detection device for a dissolution shell-and-tube heat exchanger according to claim 1, characterized in that: The junction box (6) is fixedly mounted on the mounting frame (8).