High-temperature material level measuring device

Abstract

The invention relates to the technical field of high-temperature material level gauges, and discloses a high-temperature material level measuring device which comprises a protective outer pipe, a mounting and fixing mechanism is arranged outside the protective outer pipe and comprises a fixing seat and a mounting ring, and a threaded connecting pipe is fixedly mounted on the right side of the fixing seat; a fixing ring is fixedly installed on the outer portion of the fixing base, three hinge pieces are fixedly installed on the outer portion of the fixing ring, and a fixing plate is hinged to the interior of each hinge piece. According to the high-temperature material level measuring device, the high-temperature-resistant ceramic tube is used as an insulation isolation material, the positive electrode probe and the negative electrode probe are arranged in the high-temperature-resistant ceramic tube, the cooling function provided by the nitrogen purging interface at the top is combined, the material level can be accurately measured in the working environment with the temperature as high as 1300 DEG C, meanwhile, fault parts can be rapidly replaced through the modular design, and the cost is reduced. The downtime is reduced, the use cost of a user is further saved, and the cost performance of a product is integrally improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-temperature material level meters, in particular to a high-temperature material level measuring device. Background Art

[0002] A high temperature level meter is an instrument specially designed to measure the filling level or position of materials in a high temperature environment. This instrument is usually used in industrial production processes, such as chemical, metallurgical, electric power, cement manufacturing and other industries. In these industries, there are often high-temperature solid materials (such as coal ash, ore), liquids (such as molten metal, high-temperature oil) or slurry measurement needs.

[0003] Although high-temperature level meters are indispensable in the industrial field, existing technologies still face many challenges. On the one hand, the durability of the materials used to make high-temperature level meters is insufficient. Many materials will gradually deteriorate in a long-term high-temperature environment, affecting the service life and reliability of the level meter. Therefore, there is a lack of level meters that can measure 1300°C, and the stability of the measurement cannot be guaranteed.

[0004] On the other hand, high temperature level meters are usually installed and fixed by flange or threaded connection. Although this method is stable and simple, it is prone to loosening or metal fatigue under high temperature conditions, affecting the sealing effect. Moreover, this installation method makes daily maintenance complicated and increases the difficulty of repairing and replacing parts. Therefore, we propose a high temperature level measuring device. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a high-temperature material level measuring device, which increases the service life and measurement stability of the high-temperature material level meter, simplifies the installation process, and facilitates subsequent maintenance and repair. It solves the problems that, on the one hand, there is a lack of material level meters that can measure 1300°C and the measurement stability cannot be guaranteed; on the other hand, the installation method of the existing material level meters is complicated, which increases the difficulty of maintenance and replacement of parts.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of increasing the service life of the high-temperature level meter and the stability of measurement, simplifying the installation process, and facilitating later maintenance and repair, the present invention provides the following technical solutions: a high-temperature level measuring device, comprising a protective outer tube, a high-temperature resistant ceramic tube is fixedly installed inside the protective outer tube, a positive electrode probe and a negative electrode probe are fixedly installed inside the high-temperature resistant ceramic tube, a mounting and fixing mechanism is arranged outside the protective outer tube, a nitrogen purge interface is fixedly installed on the top of the protective outer tube, a heat sink is fixedly installed on the outside of the protective outer tube, and a junction box is fixedly installed on the right end of the protective outer tube;

[0009] The installation and fixing mechanism includes a fixing seat and a mounting ring, a threaded connecting pipe is fixedly installed on the right side of the fixing seat, a fixing ring is fixedly installed on the outside of the fixing seat, three hinges are fixedly installed on the outside of the fixing ring, a fixing plate is hingedly installed inside each of the hinges, a sealing ring is fixedly installed on the inner side of the mounting ring, three limiting cavities are opened inside the mounting ring, a sliding rod is fixedly installed inside each of the limiting cavities, a spring is sleeved on the outside of each of the sliding rods, a plug-in board is slidably connected to the outside of each of the sliding rods, a plug-in column is fixedly installed on the right side of each of the plug-in boards, a limiting ring is fixedly installed on the left side of the plug-in board, and a sealing gasket is fixedly installed on the left side of the mounting ring.

[0010] Preferably, the fixing seat is slidably connected to the outside of the protective outer tube, the left side of the fixing seat is welded to the outer surface of the measured device, and the sealing gasket is located between the fixing seat and the mounting ring.

[0011] Preferably, the outer surface of the threaded connection pipe is provided with an external thread, the interior of the mounting ring is provided with an internal thread, the threaded connection pipe is threadedly connected to the mounting ring, and the right side of the threaded connection pipe is fitted with a sealing ring inside the mounting ring.

[0012] Preferably, a sliding sleeve is slidably connected to the outside of each sliding rod, three sliding grooves are provided on the outer surface of the mounting ring, and a connecting rod is fixedly installed on one side of each plug-in board close to the mounting ring.

[0013] Preferably, the three connecting rods pass through the three sliding grooves respectively and are fixedly connected to the three sliding sleeves respectively, one end of each spring is fixedly connected to the inner wall of the limiting cavity, and the other end of each spring is fixedly connected to the sliding sleeve.

[0014] Preferably, plug holes are opened on the right sides of the three fixing plates, the right sides of the three plug-in columns respectively penetrate the plug-in holes on the right sides of the three fixing plates, and the three plug-in plates are connected to each other through a limiting ring.

[0015] Preferably, the three hinged parts each include two clamping plates and two inserting rollers, the left side of the fixed plate is sleeved with the inserting roller, and the inserting roller is rotatably installed between the two clamping plates.

[0016] Preferably, the positive electrode probe and the negative electrode probe are isolated by a high temperature resistant ceramic tube, the positive electrode probe and the negative electrode probe are electrically connected to a junction box, and the nitrogen purge interface is connected to the interior of the protective outer tube.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a high-temperature material level measuring device, which has the following beneficial effects:

[0019] 1. The high-temperature material level measuring device uses high-temperature resistant ceramic tubes as insulating isolation materials, and has built-in positive electrode probes and negative electrode probes, combined with the cooling function provided by the nitrogen purge interface on the top, to solve the problem of accurately measuring the material level in a working environment up to 1300°C, ensuring the stability and reliability of the measurement; in addition, the various components of this high-temperature material level meter, such as the protective outer tube, the installation and fixing mechanism, and the junction box, all adopt standardized designs, which simplifies the production process, makes on-site installation more convenient, and improves work efficiency; more importantly, this high-temperature material level meter uses high-quality high-temperature resistant materials and effective cooling measures to significantly improve the service life of the product, reduce aging and damage caused by high temperature, and reduce maintenance costs. At the same time, the modular design facilitates the rapid replacement of faulty parts, reduces downtime, further saves users' usage costs, and improves the overall cost performance of the product.

[0020] 2. The high-temperature material level measuring device is installed and fixed by installing a fixing mechanism, and the fixing seat and the mounting ring are connected by threads to achieve preliminary installation and fixing. Then, the operator needs to push the limit ring toward the fixing seat. At this time, the spring will be compressed. This action facilitates the right side of the plug-in column to pass through the plug-in hole on the right side of the fixing plate and plug it in. When the plug-in is completed, the limit ring is released, and the spring immediately returns to its original state and expands, effectively preventing the plug-in column from escaping from the fixing plate, ensuring the stable fixation of the high-temperature material level meter under high temperature conditions, avoiding the loosening and metal fatigue problems that are prone to occur in traditional flange and screw installation methods, and at the same time, simplifying the daily maintenance process, making inspection and replacement of parts easier and faster, reducing maintenance time and cost, and improving the overall operation efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the plane structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A is an enlarged schematic diagram;

[0023] Figure 3 It is a three-dimensional schematic diagram of the fixing seat and the mounting ring of the present invention;

[0024] Figure 4 It is a schematic diagram of the planar structure of the fixing seat of the present invention;

[0025] Figure 5 It is a schematic diagram of the planar structure of the mounting ring of the present invention.

[0026] In the figure: 1. positive electrode probe; 2. high temperature resistant ceramic tube; 3. negative electrode probe; 4. protective outer tube; 5. mounting and fixing mechanism; 501. fixing seat; 502. mounting ring; 503. connecting pipe; 504. fixing ring; 505. hinge; 506. fixing plate; 507. sealing ring; 508. limiting inner cavity; 509. sliding rod; 510. spring; 511. plug-in board; 512. plug-in column; 513. limiting ring; 514. sealing gasket; 6. nitrogen purge interface; 7. heat sink; 8. junction box. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-5 A high-temperature material level measuring device comprises a protective outer tube 4, a high-temperature resistant ceramic tube 2 is fixedly installed inside the protective outer tube 4, a positive electrode probe 1 and a negative electrode probe 3 are fixedly installed inside the high-temperature resistant ceramic tube 2, a mounting and fixing mechanism 5 is arranged outside the protective outer tube 4, a nitrogen purge interface 6 is fixedly installed on the top of the protective outer tube 4, a heat sink 7 is fixedly installed outside the protective outer tube 4, and a junction box 8 is fixedly installed at the right end of the protective outer tube 4;

[0029] The installation and fixing mechanism 5 includes a fixing seat 501 and a mounting ring 502. A threaded connecting pipe 503 is fixedly installed on the right side of the fixing seat 501. A fixing ring 504 is fixedly installed on the outside of the fixing seat 501. Three hinges 505 are fixedly installed on the outside of the fixing ring 504. A fixing plate 506 is hingedly installed inside each hinge 505. A sealing ring 507 is fixedly installed on the inner side of the mounting ring 502. Three limiting inner cavities 508 are opened inside the mounting ring 502. A sliding rod 509 is fixedly installed inside each limiting inner cavity 508. A spring 510 is sleeved on the outside of each sliding rod 509. A plug-in board 511 is slidably connected to the outside of each sliding rod 509. A plug-in column 512 is fixedly installed on the right side of each plug-in board 511. A limiting ring 513 is fixedly installed on the left side of the plug-in board 511. A sealing gasket 514 is fixedly installed on the left side of the mounting ring 502.

[0030] Furthermore, the fixing seat 501 is slidably connected to the outside of the protective outer tube 4 , the left side of the fixing seat 501 is welded to the outer surface of the measured device, and the sealing gasket 514 is located between the fixing seat 501 and the mounting ring 502 .

[0031] Specifically, welding the left side of the fixing seat 501 to the outer surface of the measured device is the first step in the entire high-temperature level meter installation process, which mainly ensures the stability of the entire high-temperature level meter after installation and fixation. The sealing gasket 514 is located between the fixing seat 501 and the mounting ring 502 to ensure the sealing of the entire high-temperature level meter in a high-temperature environment, prevent foreign substances from entering the interior of the high-temperature level meter, and also prevent the internal high-temperature substances from leaking out, thereby ensuring the safety and reliability of the system.

[0032] Furthermore, the outer surface of the threaded connection pipe 503 is provided with an external thread, the interior of the mounting ring 502 is provided with an internal thread, the threaded connection pipe 503 is threadedly connected to the mounting ring 502, and the right side of the threaded connection pipe 503 is in contact with the sealing ring 507 inside the mounting ring 502.

[0033] Specifically, the threaded connection tube 503 fits with the sealing ring 507 on the inner side of the mounting ring 502, which can effectively prevent the leakage of gas or particulate matter in a high-temperature environment, thereby ensuring the sealing of the high-temperature level meter, which is crucial for high-temperature level measurement devices, because any leakage may lead to inaccurate measurement or even equipment damage; and the threaded connection design between the fixing seat 501 and the mounting ring 502 is easy to disassemble, which means that the high-temperature level meter can be quickly removed when maintenance or replacement of parts is required, thereby reducing maintenance time and cost and improving equipment availability.

[0034] Furthermore, a sliding sleeve is slidably connected to the outside of each sliding rod 509 , three sliding grooves are provided on the outer surface of the mounting ring 502 , and a connecting rod is fixedly installed on one side of each plug-in board 511 close to the mounting ring 502 .

[0035] Specifically, through the sliding connection between the sliding rod 509 and the sliding sleeve, and the design of the connecting rod, the precise alignment of the plug-in board 511 during installation can be ensured, thereby ensuring that the plug-in column 512 can be smoothly inserted into the plug-in hole of the fixing plate 506, ensuring the stable fixation of the entire device under high temperature conditions.

[0036] Furthermore, the three connecting rods pass through the three sliding grooves respectively and are fixedly connected to the three sliding sleeves respectively. One end of each spring 510 is fixedly connected to the inner wall of the limiting inner cavity 508, and the other end of each spring 510 is fixedly connected to the sliding sleeve.

[0037] Specifically, the design of the spring 510 allows the plug-in column 512 to be automatically locked in the plug-in hole of the fixed plate 506 under the action of the force of the spring 510. When the operator pushes the limiting ring 513 toward the fixed seat 501, the spring 510 is compressed, which allows the plug-in column 512 to smoothly pass through the plug-in hole of the fixed plate 506. Once the limiting ring 513 is released, the spring 510 returns to its original state, so that the plug-in column 512 is firmly fixed in the fixed plate 506.

[0038] Furthermore, plug holes are provided on the right sides of the three fixing plates 506 , and the right sides of the three plug-in posts 512 respectively penetrate the plug-in holes on the right sides of the three fixing plates 506 , and the three plug-in plates 511 are connected to each other via a limiting ring 513 .

[0039] Specifically, the plug-in structure between the fixing plate 506 and the plug-in column 512 can provide a reliable fixing effect in a high temperature environment, preventing loosening or metal fatigue caused by high temperature. The design of the limiting ring 513 ensures that the plug-in column 512 will not easily fall out of the fixing plate 506, thereby ensuring the stable fixation of the device under high temperature conditions.

[0040] Furthermore, the three hinged parts 505 each include two clamping plates and inserting rollers, the left side of the fixed plate 506 is sleeved with the inserting roller, and the inserting roller is rotatably installed between the two clamping plates.

[0041] Specifically, the design of the hinge 505 allows the fixing plate 506 to rotate flexibly around the insertion roller, so that it can adapt to different installation angles and positions during the installation process, thereby improving the flexibility and adaptability of the installation.

[0042] Furthermore, the positive electrode probe 1 and the negative electrode probe 3 are isolated by the high temperature resistant ceramic tube 2 , the positive electrode probe 1 and the negative electrode probe 3 are electrically connected to the junction box 8 , and the nitrogen purge interface 6 is connected to the inside of the protective outer tube 4 .

[0043] Specifically, the positive electrode probe 1 and the negative electrode probe 3 are installed in a high-temperature resistant ceramic tube 2, which insulates and protects the positive electrode probe 1 and the negative electrode probe 3. The positive electrode probe 1 and the negative electrode probe 3 are electrically connected to the junction box 8, and the change in the material level is judged by detecting the change in capacitance between the two electrodes. In order to ensure the stability and service life of the electrode probe in a high-temperature environment, a nitrogen purge interface 6 is also provided, which is connected to the inside of the protective outer tube 4. The temperature near the positive electrode probe 1 and the negative electrode probe 3 can be reduced by introducing cooling nitrogen to prevent the positive electrode probe 1 and the negative electrode probe 3 from being damaged by high temperature, and the nitrogen also plays a role in preventing oxidation.

[0044] In summary, the high-temperature material level measuring device, by using a high-temperature resistant ceramic tube 2 as an insulating isolation material, and having a built-in positive electrode probe 1 and a negative electrode probe 3, combined with the cooling function provided by the nitrogen purge interface 6 on the top, solves the problem of accurately measuring the material level in a working environment of up to 1300°C, and ensures the stability and reliability of the measurement; in addition, the various components of the high-temperature material level meter, such as the protective outer tube 4, the mounting and fixing mechanism 5, and the junction box 8, all adopt a standardized design, which simplifies the production process, makes on-site installation more convenient, and improves work efficiency; more importantly, the high-temperature material level meter utilizes high-quality high-temperature resistant materials and effective cooling measures to significantly improve the service life of the product, reduce aging and damage caused by high temperature, and reduce maintenance costs. At the same time, the modular design facilitates the rapid replacement of faulty parts, reduces downtime, further saves users' usage costs, and improves the overall cost performance of the product.

[0045] In addition, the high-temperature material level measuring device is preliminarily installed and fixed by installing the fixing mechanism 5, and the fixing seat 501 and the mounting ring 502 are connected by threading. Then, the operator needs to push the limiting ring 513 toward the fixing seat 501. At this time, the spring 510 will be compressed. This action facilitates the right side of the plug-in column 512 to pass through the plug-in hole on the right side of the fixing plate 506 and plug it therewith. When the plug-in is completed, the limiting ring 513 is released, and the spring 510 immediately returns to its original state and expands, effectively preventing the plug-in column 512 from escaping from the fixing plate 506, ensuring the stable fixation of the high-temperature material level meter under high temperature conditions, avoiding the loosening and metal fatigue problems that are prone to occur in the traditional flange and screw installation methods, and at the same time, simplifying the daily maintenance process, making the inspection and replacement of parts simpler and faster, reducing maintenance time and cost, and improving the overall operation efficiency of the equipment, solving the problem that on the one hand, there is a lack of material level meters that can measure 1300°C and the stability of measurement cannot be guaranteed; on the other hand, the installation method of the existing material level meters is complicated, which increases the difficulty of inspection and replacement of parts.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature material level measuring device, comprising a protective outer tube (4), characterized in that: A high temperature resistant ceramic tube (2) is fixedly installed inside the protective outer tube (4), a positive electrode probe (1) and a negative electrode probe (3) are fixedly installed inside the high temperature resistant ceramic tube (2), a mounting and fixing mechanism (5) is arranged outside the protective outer tube (4), a nitrogen purge interface (6) is fixedly installed on the top of the protective outer tube (4), a heat sink (7) is fixedly installed outside the protective outer tube (4), and a junction box (8) is fixedly installed at the right end of the protective outer tube (4); The mounting and fixing mechanism (5) comprises a fixing seat (501) and a mounting ring (502); a threaded connecting pipe (503) is fixedly mounted on the right side of the fixing seat (501); a fixing ring (504) is fixedly mounted on the outside of the fixing seat (501); three hinged parts (505) are fixedly mounted on the outside of the fixing ring (504); a fixing plate (506) is hingedly mounted inside each of the hinged parts (505); a sealing ring (507) is fixedly mounted on the inside of the mounting ring (502); The part is provided with three limiting inner cavities (508), each of which is fixedly installed with a sliding rod (509), each of which is sleeved with a spring (510), each of which is slidably connected with a plug board (511), each of which is fixedly installed with a plug column (512) on the right side of each plug board (511), a limiting ring (513) is fixedly installed on the left side of the plug board (511), and a sealing gasket (514) is fixedly installed on the left side of the mounting ring (502).

2. A high temperature material level measuring device according to claim 1, characterized in that: The fixing seat (501) is slidably connected to the outside of the protective outer tube (4), the left side of the fixing seat (501) is welded to the outer surface of the measured device, and the sealing gasket (514) is located between the fixing seat (501) and the mounting ring (502).

3. A high temperature material level measuring device according to claim 1, characterized in that: The outer surface of the threaded connection pipe (503) is provided with an external thread, and the interior of the mounting ring (502) is provided with an internal thread. The threaded connection pipe (503) is threadedly connected to the mounting ring (502), and the right side of the threaded connection pipe (503) is in contact with the sealing ring (507) inside the mounting ring (502).

4. A high temperature material level measuring device according to claim 1, characterized in that: The outside of each sliding rod (509) is slidably connected to a sliding sleeve, the outer surface of the mounting ring (502) is provided with three sliding grooves, and a connecting rod is fixedly installed on one side of each plug-in board (511) close to the mounting ring (502).

5. A high temperature material level measuring device according to claim 4, characterized in that: The three connecting rods respectively pass through the three sliding grooves and are respectively fixedly connected to the three sliding sleeves. One end of each spring (510) is fixedly connected to the inner wall of the limiting inner cavity (508), and the other end of each spring (510) is fixedly connected to the sliding sleeve.

6. A high temperature material level measuring device according to claim 1, characterized in that: The right sides of the three fixing plates (506) are each provided with a plug-in hole, the right sides of the three plug-in columns (512) respectively penetrate the plug-in holes on the right sides of the three fixing plates (506), and the three plug-in plates (511) are connected to each other via a limiting ring (513).

7. A high temperature material level measuring device according to claim 1, characterized in that: The three hinged parts (505) each include two clamping plates and an inserting roller, the left side of the fixed plate (506) is sleeved with the inserting roller, and the inserting roller is rotatably installed between the two clamping plates.

8. A high temperature material level measuring device according to claim 1, characterized in that: The positive electrode probe (1) and the negative electrode probe (3) are isolated by a high temperature resistant ceramic tube (2), the positive electrode probe (1) and the negative electrode probe (3) are electrically connected to a junction box (8), and the nitrogen purge interface (6) is connected to the interior of the protective outer tube (4).

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