Cracking furnace monitoring device
By using a rotating frame and support plate to drive the temperature sensor in the pyrolysis furnace for all-around monitoring, the problem of limited measurement range of existing devices is solved, accurate and reliable monitoring of furnace tube wall temperature is achieved, and the convenience of the device is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
Existing pyrolysis furnace monitoring devices cannot measure the furnace tube wall from all angles, affecting the accuracy and reliability of the measurements.
It adopts a combination structure of rotating frame, support plate and temperature sensor. The temperature sensor is driven by servo motor to move along the furnace tube wall for all-round monitoring. The sensor can be easily disassembled for maintenance by lead screw and torque.
It enables comprehensive temperature monitoring of the furnace tube wall, improving the accuracy and reliability of the measurement, and facilitating the disassembly and maintenance of the sensor.
Smart Images

Figure CN223965908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pyrolysis furnace temperature monitoring technology, specifically a pyrolysis furnace monitoring device. Background Technology
[0002] Cracking furnaces are industrial equipment used for high-temperature cracking reactions of hydrocarbons. They mainly convert large molecular hydrocarbons (such as petroleum and natural gas) into small molecular olefins such as ethylene and propylene. In order to ensure the safe operation of the cracking furnace and to make timely and accurate judgments on the operating status of the furnace tubes, the temperature of the furnace tube wall is usually monitored and controlled.
[0003] In real-world applications, when using monitoring devices to measure the temperature of furnace tube walls, temperature sensors are usually installed at fixed locations. This method limits the measurement range of the temperature sensors, making it impossible to measure the furnace tube walls from all angles, thus affecting the accuracy and reliability of the measurements. Therefore, a pyrolysis furnace monitoring device is needed. Utility Model Content
[0004] The purpose of this invention is to provide a pyrolysis furnace monitoring device to solve the problem mentioned in the background art, where the monitoring device has a limited measurement range and cannot measure the furnace tube wall from all angles, thus affecting the accuracy and reliability of the measurement.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a monitoring device for a pyrolysis furnace, comprising:
[0007] The pyrolysis furnace body has two fixed brackets on one side, and the two fixed brackets have a common fixed frame on one side.
[0008] A temperature monitoring component, comprising a rotating frame, a horizontal plate, a fixed shaft, a driving component, a support plate, and a temperature sensor;
[0009] The outer wall of the rotating frame is slidably mounted on the inner wall of the fixed frame. The two sides of the horizontal plate are respectively fixedly mounted in the middle of the inner wall of the rotating frame. One end of the fixed shaft is fixedly mounted in the middle of one side of the horizontal plate, and the outer wall of the fixed shaft is provided with a driving component. One side of the support plate is fixedly mounted on the top of one side of the rotating frame, and the outer surface of the temperature sensor is embedded in one side of the top of the support plate.
[0010] Furthermore, the temperature monitoring component also includes a circular slide bar, the inner wall of which is fixedly disposed on the outer wall of the rotating frame, and the outer wall of the circular slide bar is slidably connected to the inner side wall of the fixed frame.
[0011] Furthermore, the driving component includes a servo motor, the output end of which is fixedly provided with a rotating shaft, the outer wall of which is fixedly provided with a first pulley, the outer wall of which is fitted with a transmission belt, and a second pulley is connected to it via the transmission belt.
[0012] Furthermore, a fixing seat is fixedly provided at the top of one side of the fixing frame, and the top of the fixing seat is fixedly connected to the bottom of the servo motor.
[0013] Furthermore, a bearing seat is fixedly provided at the top of the fixed frame, and the inner wall of the bearing seat is connected to the outer wall bearing of the rotating shaft.
[0014] Furthermore, it also includes a fixing component, which includes a connecting seat. The bottom end of the connecting seat is fixedly disposed on the side of the top of the support plate. A lead screw is provided through one side of the connecting seat, and a knob is fixedly disposed at one end of the lead screw.
[0015] Furthermore, the top of the connector has a mounting hole, and the inner side of the mounting hole engages with the top of the outer wall of the temperature sensor.
[0016] This utility model has the following beneficial effects:
[0017] This invention incorporates a driving component, a rotating frame, a support plate, and a temperature sensor. The driving component rotates the rotating frame, which in turn rotates the support plate. This causes the temperature sensor on the support plate to move along the furnace tube wall of the pyrolysis furnace for monitoring. This method increases the measurement range of the temperature sensor, enabling it to measure the furnace tube wall from all angles, thereby ensuring the accuracy and reliability of the measurement.
[0018] Based on the aforementioned beneficial effects, the device is equipped with a knob and a lead screw. Rotating the knob causes the lead screw to move outward until the lead screw is no longer in contact with the temperature sensor. Then, the temperature sensor can be removed upward. This facilitates the disassembly of the temperature sensor, makes it easier to maintain later, and improves the ease of use. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the connection structure between the fixed frame and the temperature monitoring component of this utility model;
[0022] Figure 3 This is a schematic diagram of the fixed frame connection structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the fixing component structure of this utility model.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1. Cracking furnace body; 2. Fixing frame; 3. Fixing frame; 4. Temperature monitoring component; 5. Fixing component; 6. Shaft seat; 7. Fixing base;
[0026] 401. Rotating frame; 402. Horizontal plate; 403. Fixed shaft; 404. Second pulley; 405. Transmission belt; 406. First pulley; 407. Rotating shaft; 408. Servo motor; 409. Support plate; 410. Temperature sensor; 411. Circular slider;
[0027] 501. Connecting seat; 502. Mounting hole; 503. Lead screw; 504. Torque. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0030] Please see Figure 1-4 As shown, this utility model is a pyrolysis furnace monitoring device, comprising:
[0031] The pyrolysis furnace body 1 has two fixed brackets 2 fixed on one side, and the two fixed brackets 2 have a fixed frame 3 on one side.
[0032] The cracking furnace body 1 is mainly used for high-temperature cracking reactions of hydrocarbons, and the fixing frame 2 is used to connect and support the fixing frame 3 to ensure the overall stability of the fixing frame 3.
[0033] Temperature monitoring component 4 includes a rotating frame 401, a horizontal plate 402, a fixed shaft 403, a driving component, a support plate 409, and a temperature sensor 410.
[0034] The outer wall of the rotating frame 401 is slidably disposed on the inner wall of the fixed frame 3. The two sides of the horizontal plate 402 are respectively fixedly disposed in the middle of the inner wall of the rotating frame 401. One end of the fixed shaft 403 is fixedly disposed in the middle of one side of the horizontal plate 402, and the outer wall of the fixed shaft 403 is provided with a driving component. One side of the support plate 409 is fixedly disposed on the top of one side of the rotating frame 401, and the outer surface of the temperature sensor 410 is embedded in one side of the top of the support plate 409.
[0035] The driving component is used to provide the driving force required for the temperature sensor 410 to rotate along the furnace tube wall of the pyrolysis furnace body 1. The temperature sensor 410 is used to monitor the temperature of the furnace tube wall. The temperature sensor 410 is model PT1000. Its principle is mainly based on the law of the change of physical properties of different materials with temperature. The temperature value is calculated by measuring the change of these properties.
[0036] The temperature monitoring component 4 also includes a circular slide bar 411. The inner wall of the circular slide bar 411 is fixedly disposed on the outer wall of the rotating frame 401, and the outer wall of the circular slide bar 411 is slidably connected to the inner wall of the fixed frame 3.
[0037] The circular slide bar 411 mainly limits the rotation of the rotating frame 401, allowing it to rotate along the inner wall of the fixed frame 3. The inner wall of the fixed frame 3 is provided with a sliding groove that matches the circular slide bar 411. At the same time, the fixed frame 3 can support the rotation of the rotating frame 401.
[0038] The driving component includes a servo motor 408. The output end of the servo motor 408 is fixedly provided with a rotating shaft 407. The outer wall of the rotating shaft 407 is fixedly provided with a first pulley 406. The outer wall of the first pulley 406 is fitted with a transmission belt 405, and a second pulley 404 is connected to it via the transmission belt 405.
[0039] The inner wall of the second pulley 404 is fixedly mounted on the outer wall of the fixed shaft 403;
[0040] A fixing seat 7 is fixedly provided on the top of one side of the fixing frame 3, and the top of the fixing seat 7 is fixedly connected to the bottom of the servo motor 408.
[0041] Mounting bracket 7 is used to support and fix the servo motor 408;
[0042] A bearing seat 6 is fixedly provided at the top of the fixed frame 3, and the inner wall of the bearing seat 6 is connected to the outer wall bearing of the rotating shaft 407.
[0043] Shaft seat 6 is used to support the rotation of the rotating shaft 407;
[0044] Working principle: The servo motor 408 drives the rotating shaft 407 to rotate, the rotating shaft 407 drives the first pulley 406 to rotate, the first pulley 406 drives the second pulley 404 to rotate through the transmission belt 405, the second pulley 404 drives the horizontal plate 402 to rotate through the fixed shaft 403, and then drives the support plate 409 to rotate through the rotating frame 401, so that the temperature sensor 410 moves along the furnace tube wall of the pyrolysis furnace body 1 to monitor.
[0045] This step allows for an increase in the measurement range of the temperature sensor 410, enabling it to measure the furnace tube wall from all angles, thereby ensuring the accuracy and reliability of the measurement.
[0046] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:
[0047] The fixing component 5 includes a connecting seat 501. The bottom end of the connecting seat 501 is fixedly disposed on the side of the top end of the support plate 409. A lead screw 503 is provided through one side of the connecting seat 501, and a knob 504 is fixedly disposed at one end of the lead screw 503.
[0048] The connecting seat 501 is inverted L-shape. The outer wall of the lead screw 503 is connected to the internal thread of the connecting seat 501. The outer wall of the knob 504 is provided with anti-slip threads to increase the friction between the hand and the knob 504, making it easier to rotate the knob 504.
[0049] The top of the connector 501 has a mounting hole 502, and the inner side of the mounting hole 502 engages with the top of the outer wall of the temperature sensor 410.
[0050] One end of the lead screw 503 passes through the inside of the mounting hole 502 and contacts the outer wall of the temperature sensor 410;
[0051] Working principle: Rotate the knob 504, which drives the lead screw 503 to move outward until the lead screw 503 no longer contacts the outer wall of the temperature sensor 410. Then move the temperature sensor 410 upward so that it separates from the support plate 409 and the connecting seat 501 respectively.
[0052] This step allows for easy disassembly of the temperature sensor 410, facilitating future maintenance and improving ease of use.
[0053] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A cracking furnace monitoring device, characterized by, Include: Cracking furnace body (1), one side of the cracking furnace body (1) is fixedly provided with two fixed frame (2), one side of two fixed frame (2) is provided with fixed frame (3) in common; Temperature monitoring assembly (4), the temperature monitoring assembly (4) includes rotating frame (401), cross plate (402), fixed shaft (403), drive, support plate (409) and temperature sensor (410); The outer wall of the rotating frame (401) is slidably arranged on the inner wall of the fixed frame (3), the cross plate (402) is fixedly arranged on the inner wall of the rotating frame (401) at the middle of both sides, one end of the fixed shaft (403) is fixedly arranged on the middle of one side of the cross plate (402), and the outer wall of the fixed shaft (403) is provided with a drive, one side of the support plate (409) is fixedly arranged on the top of one side of the rotating frame (401), and the outer surface of the temperature sensor (410) is embedded on one side of the top end of the support plate (409).
2. A cracking furnace monitoring device according to claim 1, characterized in that The temperature monitoring assembly (4) further comprises a circular slide bar (411), the inner wall of the circular slide bar (411) is fixedly arranged on the outer wall of the rotating frame (401), and the outer wall of the circular slide bar (411) is slidably connected with the inner wall of the fixed frame (3).
3. The device for monitoring a cracking furnace according to claim 1, characterized in that: The drive includes a servo motor (408), the output end of the servo motor (408) is fixedly provided with a rotating shaft (407), the outer wall of the rotating shaft (407) is fixedly provided with a first pulley (406), the outer wall of the first pulley (406) is sleeved with a transmission belt (405), and the second pulley (404) is drivenly connected with the transmission belt (405).
4. A cracking furnace monitoring apparatus according to claim 3, characterized in that: The top end of one side of the fixed frame (3) is fixedly provided with a fixed seat (7), and the top end of the fixed seat (7) is fixedly connected with the bottom end of the servo motor (408).
5. A cracking furnace monitoring apparatus according to claim 3, characterized in that: The top end of the fixed frame (3) is fixedly provided with a shaft seat (6), and the inner wall of the shaft seat (6) is bearingly connected with the outer wall of the rotating shaft (407).
6. The device for monitoring a cracking furnace according to claim 1, characterized in that: It also includes a fixing assembly (5), the fixing assembly (5) includes a connecting seat (501), the bottom end of the connecting seat (501) is fixedly arranged on the top end of the side of the support plate (409), one side of the connecting seat (501) is provided with a lead screw (503), one end of the lead screw (503) is fixedly provided with a rotating handle (504).
7. A cracking furnace monitoring apparatus according to claim 6, characterized in that: The top end of the connecting seat (501) is provided with a mounting hole (502), and the inner side of the mounting hole (502) is snap-connected with the top end of the outer wall of the temperature sensor (410).