Ore pulp temperature detection device for dissolving-out double-pipe heat exchanger and use method of ore pulp temperature detection device
By installing the temperature sensing parts and armored thermal resistors on the outer wall of the dissolution casing heat exchanger, the problem of wear of traditional temperature detection instruments in the Bayer alumina production process is solved, and high-precision temperature measurement and equipment protection are achieved, ensuring that The process production is carried out smoothly.
Patent Information
- Application Number
- CN202411681657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-01-14
AI Technical Summary
Traditional plug-in temperature detection instruments are prone to scarring and corrosion during the Bayer alumina production process, resulting in wear during the dissolution stage, resulting in inaccurate temperature measurement or inability to measure, affecting process production.
Design a slurry temperature detection device for dissolution casing heat exchanger. By fixing the temperature sensing element on the outer wall of the casing, setting an armored thermal resistance inside, and drawing a temperature signal through the leads and junction boxes to avoid direct temperature measurement elements and medium Contact, a temperature-sensitive piece made of platinum and protective cover to prevent wear.
It realizes effective measurement of the medium temperature in the casing, avoids wear and damage of the temperature measuring elements, and ensures the accuracy of temperature detection and the stability of the equipment.
Smart Images
Figure CN119309689A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to temperature measurement using thermoelectric elements, and in particular to a slurry temperature detection device for a dissolution tube-in-tube heat exchanger and a use method thereof. Background Art
[0002] Traditional methods of measuring medium temperature mostly use inserted temperature detection instruments. In the Bayer process of alumina production, due to the characteristics of easy scarring and corrosion in the process, especially in the dissolution stage, if an inserted thermometer in direct contact with the medium is used, the instrument protection tube will be worn due to long-term erosion by the medium, resulting in damage to the temperature detection instrument, inaccurate temperature measurement, or inability to effectively measure the medium temperature. If the damaged instrument needs to be replaced, it can only be operated when the production process is shut down. In addition, damage to the temperature detection instrument will also 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 present invention provides a slurry temperature detection device for a dissolution shell and tube heat exchanger and a use method, which can effectively measure the temperature of the medium in the shell and avoid damage caused by wear of the temperature measuring element probe.
[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a slurry temperature detection device for a dissolution shell and tube heat exchanger, comprising a temperature sensing component, which is fixed on the outer wall of the shell, and the detection end of the armored thermal resistor is arranged inside the temperature sensing component, one end of the lead wire is connected to the armored thermal resistor, and the other end is connected to the junction box.
[0005] The armored thermal resistance sleeve is provided with a protective sleeve.
[0006] The armored thermal resistor and the temperature sensing element are fixed by tightening screws.
[0007] The temperature sensing element is fixed to the sleeve by welding.
[0008] The temperature sensing element is made of platinum.
[0009] The junction box is fixedly mounted on the mounting frame.
[0010] The method for using the above-mentioned slurry temperature detection device for the dissolution shell and tube heat exchanger adopts a method of fixing a temperature sensing component on the outer wall of the shell and setting an armored thermal resistor inside the temperature sensing component, leading out the measured temperature through a lead wire and a junction box, and then making a corresponding temperature correction to the measured value to obtain the medium temperature in the shell.
[0011] The beneficial effects of the present invention are as follows: the device has a simple structure, and by welding a temperature sensing element on the outer wall of the casing, the armored thermal resistor measures the temperature of the temperature sensing element, 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
[0012] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; 1. Temperature sensing element; 2. Bushing; 3. Armored thermal resistor; 4. Protective cap; 5. Lead wire; 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, rather than all the embodiments.
[0014] The technical solution of the present invention is described in detail with specific embodiments below. 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 present invention provides a slurry temperature detection device for a dissolution shell and tube heat exchanger, characterized in that it includes a temperature sensing component 1, the temperature sensing component 1 is fixed to the outer wall of the shell 2, the detection end of the armored thermal resistor 3 is arranged inside the temperature sensing component 1, one end of the lead wire 5 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 provided with a protective cover 4, the armored thermal resistor 3 is fixed to the temperature sensing element 1 by a tightening screw 7, the temperature sensing element 1 is welded and fixed to the sleeve 2, the temperature sensing element 1 is made of platinum, and the junction box 6 is fixedly mounted on the mounting frame 8. The protective cap 4 is used to support and protect the armored thermal resistor 3 to ensure that the armored thermal resistor 3 can work stably, and the temperature sensing element 1 is made of platinum to ensure high-precision temperature measurement.
[0017] The method of using the above-mentioned device for detecting the slurry temperature of the dissolution shell and tube heat exchanger is as follows: a temperature sensing component 1 is fixedly connected to the outer wall of the shell 2, an armored thermal resistor 3 is arranged inside the temperature sensing component 1, the measured temperature is led out through the lead 5 and the junction box 6, and then the measured value is corrected accordingly to obtain the medium temperature in the shell 2.
[0018] Through the above method, it is possible to effectively measure the temperature of the medium in the casing and avoid damage caused by wear of the probe of the temperature measuring element.
[0019] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of 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 tube heat exchanger, characterized in that: The invention comprises a temperature sensing element (1), wherein the temperature sensing element (1) is fixed to the outer wall of the casing (2), a detection end of an armored thermal resistor (3) is arranged inside the temperature sensing element (1), one end of a lead wire (5) 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 tube heat exchanger according to claim 1, characterized in that: The armored thermal resistor (3) is provided with a protective sleeve (4).
3. The slurry temperature detection device for a dissolution tube heat exchanger according to claim 1, characterized in that: The armored thermal resistor (3) and the temperature sensing element (1) are fixed by means of a tightening screw (7).
4. The slurry temperature detection device for a dissolution tube heat exchanger according to claim 1, characterized in that: The temperature sensing element (1) is fixed to the sleeve (2) by welding.
5. The slurry temperature detection device for a dissolution tube heat exchanger according to claim 1, characterized in that: The temperature sensing element (1) is made of platinum.
6. The slurry temperature detection device for a dissolution tube heat exchanger according to claim 1, characterized in that: The junction box (6) is fixedly mounted on the mounting frame (8).
7. A method for using the slurry temperature detection device for a dissolution tube heat exchanger according to claims 1 to 6, characterized in that: A temperature sensing element (1) is fixedly connected to the outer wall of a casing (2), an armored thermal resistor (3) is arranged inside the temperature sensing element (1), the measured temperature is led out through a lead wire (5) and a junction box (6), and then the measured value is corrected accordingly to obtain the temperature of the medium in the casing (2).