Oil refining heating furnace control device

Abstract

The utility model discloses a control device for an oil refining heating furnace, which relates to the technical field of heating furnaces and comprises an air inlet pipe and a mounting rack, the air inlet pipe is fixedly sleeved in one end of the mounting rack, a rotating rod is rotatably arranged in the air inlet pipe, and a rotating plate is fixedly sleeved on the rod wall of the rotating rod. A vertical plate is fixedly arranged on one side of the upper surface of the mounting frame, an inner threaded pipe is rotatably arranged on one side of the vertical plate, a motor is fixedly arranged on the other side of the vertical plate, the output end of the motor is fixedly connected with one end of the inner threaded pipe, and a temperature sensor is fixedly arranged at the end, away from the air inlet pipe, of the mounting frame. And one side of the temperature sensor is electrically connected with a PLC control box, the PLC control box is electrically connected with the motor, and a transmission mechanism for driving the rotating rod to rotate is arranged at the end, close to the air inlet pipe, of the inner threaded pipe. The heating furnace can automatically control the air inlet amount according to the temperature in the furnace and ensure the temperature in the heating furnace to be stable.

Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, specifically to a control device for an oil refining heating furnace. Background Technology

[0002] Refining heaters are key equipment in the petroleum refining process, used to heat raw materials such as crude oil and heavy oil for chemical reactions such as distillation and cracking. The combustion efficiency and temperature control of the heater directly affect the quality of refined products and production costs.

[0003] Traditional heating furnaces require manual monitoring of the furnace temperature in real time, and the air intake must be manually controlled based on the furnace temperature to achieve temperature control, which is a huge waste of manpower. Utility Model Content

[0004] In view of the problems existing in the current oil refining heating furnace control device, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a control device for an oil refining heating furnace, which solves the problem that in the prior art, when the heating furnace is in use, it is necessary to manually monitor the furnace temperature in real time and then manually control the air intake of the heating furnace according to the furnace temperature in order to control the furnace temperature, which is a great waste of manpower.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A control device for an oil refining heating furnace includes an air inlet pipe and a mounting frame. The air inlet pipe is fixedly sleeved inside one end of the mounting frame. A rotating rod is rotatably mounted inside the air inlet pipe, and a rotating plate is fixedly sleeved on the rod wall. A vertical plate is fixedly mounted on one side of the upper surface of the mounting frame, and an internally threaded pipe is rotatably mounted on one side of the vertical plate. A motor is fixedly mounted on the other side of the vertical plate, and the output end of the motor is fixedly connected to one end of the internally threaded pipe. A temperature sensor is fixedly mounted on the end of the mounting frame away from the air inlet pipe, and a PLC control box is electrically connected to one side of the temperature sensor. The PLC control box is electrically connected to the motor. A transmission mechanism for driving the rotating rod to rotate is provided at the end of the internally threaded pipe near the air inlet pipe.

[0008] Preferably, the transmission mechanism includes gears and racks, a U-shaped plate is sleeved on the outer side of the air inlet pipe, two racks are fixedly disposed on both sides of the upper surface of the U-shaped plate, both ends of the rotating rod extend to the outer side of the air inlet pipe, two gears are fixedly sleeved on one end of the corresponding rotating rod, both gears are meshed with the racks, and a threaded rod is sleeved on the internal thread of the internally threaded pipe, one end of the threaded rod is fixedly connected to the U-shaped plate.

[0009] Preferably, both ends of the rotating rod are rotatably connected to the inner wall of the air inlet pipe through sealed bearings.

[0010] Preferably, the inner walls on both sides of the U-shaped plate abut against the outer wall of the air inlet pipe.

[0011] Preferably, both sides of the rotating plate abut against the inner wall of the air inlet pipe.

[0012] Preferably, the inner wall of the U-shaped plate and the outer wall of the air inlet pipe are both coated with a wear-resistant coating.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] This invention uses a temperature sensor to detect the temperature inside the heating furnace, which in turn causes the PLC control box to control the motor to rotate forward or backward. The motor drives the internal threaded tube to rotate, which in turn drives the threaded rod to move, thus moving the U-shaped plate. This, in turn, drives the rack to move, which in turn drives the corresponding gear to rotate, which in turn drives the rotating rod to rotate. The rotating rod drives the rotating plate to rotate, thereby adjusting the air intake of the air inlet pipe and facilitating automatic control of the internal temperature of the heating furnace. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a refining heating furnace control device proposed in this utility model;

[0017] Figure 2 for Figure 1 Internal structure diagram;

[0018] Figure 3 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0019] Figure 4 for Figure 1 A three-dimensional view of the U-shaped plate.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Mounting bracket; 2. Air inlet duct; 3. Rotating rod; 4. Rotating plate; 5. U-shaped plate; 6. Vertical plate; 7. Internally threaded pipe; 8. Threaded rod; 9. Motor; 10. PLC control box; 11. Temperature sensor; 12. Rack; 13. Gear. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a control device for an oil refining heating furnace.

[0024] Example 1

[0025] Reference Figure 1-4 A control device for an oil refining heating furnace includes an air inlet pipe 2 and a mounting frame 1. The air inlet pipe 2 is fixedly sleeved inside one end of the mounting frame 1. A rotating rod 3 is rotatably provided inside the air inlet pipe 2. A rotating plate 4 is fixedly sleeved on the wall of the rotating rod 3. Both sides of the rotating plate 4 abut against the inner wall of the air inlet pipe 2 to improve the sealing between the rotating plate 4 and the inner wall of the air inlet pipe 2. A vertical plate 6 is fixedly provided on one side of the upper surface of the mounting frame 1. An internally threaded pipe 7 is rotatably provided on one side of the vertical plate 6. A motor 9 is fixedly provided on the other side of the vertical plate 6. The output end of the motor 9 is fixedly connected to one end of the internally threaded pipe 7. A temperature sensor 11 is fixedly provided on the end of the mounting frame 1 away from the air inlet pipe 2. A PLC control box 10 is electrically connected to one side of the temperature sensor 11. The PLC control box 10 is electrically connected to the motor 9.

[0026] Example 2

[0027] Reference Figure 1-4 The internally threaded pipe 7 has a transmission mechanism at one end near the air inlet pipe 2 that drives the rotating rod 3 to rotate. The transmission mechanism includes a gear 13 and a rack 12. A U-shaped plate 5 is sleeved on the outside of the air inlet pipe 2. Two racks 12 are fixedly set on both sides of the upper surface of the U-shaped plate 5. Both ends of the rotating rod 3 extend to the outside of the air inlet pipe 2. Both ends of the rotating rod 3 are rotatably connected to the inner wall of the air inlet pipe 2 through sealed bearings to improve the sealing between the rotating rod 3 and the inner wall of the air inlet pipe 2. Two gears 13 are fixedly sleeved on one end of the corresponding rotating rod 3. Both gears 13 are meshed with the rack 12. The internally threaded pipe 7 has a threaded rod 8 sleeved inside. One end of the threaded rod 8 is fixedly connected to the U-shaped plate 5. Both sides of the inner wall of the U-shaped plate 5 abut against the outer wall of the air inlet pipe 2, so that the U-shaped plate 5 cannot rotate, that is, it can slide stably. The inner wall of the U-shaped plate 5 and the outer wall of the air inlet pipe 2 are coated with a wear-resistant coating to improve the wear resistance of the inner wall of the U-shaped plate 5 and the air inlet pipe 2.

[0028] In this invention, during use, the temperature sensor 11 senses the temperature inside the heating furnace, causing the PLC control box 10 to control the motor 9 to rotate forward or backward. The motor 9 drives the internal threaded tube 7 to rotate, and the internal threaded tube 7 drives the threaded rod 8 to move, thus causing the U-shaped plate 5 to move. This, in turn, drives the rack 12 to move, and the rack 12 drives the corresponding gear 13 to rotate, which in turn drives the rotating rod 3 to rotate. The rotating rod 3 drives the rotating plate 4 to rotate, thereby adjusting the air intake of the air inlet pipe 2 and facilitating automatic control of the internal temperature of the heating furnace.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A control device for an oil refining heating furnace, comprising an air inlet pipe (2) and a mounting bracket (1), characterized in that, The air inlet pipe (2) is fixedly sleeved inside one end of the mounting frame (1). The air inlet pipe (2) is rotatably equipped with a rotating rod (3). The rod wall of the rotating rod (3) is fixedly sleeved with a rotating plate (4). A vertical plate (6) is fixedly installed on one side of the upper surface of the mounting frame (1). An internal threaded pipe (7) is rotatably installed on one side of the vertical plate (6). A motor (9) is fixedly installed on the other side of the vertical plate (6). The output end of the motor (9) is fixedly connected to one end of the internal threaded pipe (7). A temperature sensor (11) is fixedly installed on the end of the mounting frame (1) away from the air inlet pipe (2). A PLC control box (10) is electrically connected to one side of the temperature sensor (11). The PLC control box (10) is electrically connected to the motor (9). A transmission mechanism that drives the rotating rod (3) to rotate is provided on the end of the internal threaded pipe (7) near the air inlet pipe (2).

2. The oil refining heating furnace control device according to claim 1, characterized in that, The transmission mechanism includes gears (13) and racks (12). A U-shaped plate (5) is sleeved on the outside of the air inlet pipe (2). Two racks (12) are fixedly set on both sides of the upper surface of the U-shaped plate (5). Both ends of the rotating rod (3) extend to the outside of the air inlet pipe (2). Two gears (13) are fixedly sleeved on one end of the corresponding rotating rod (3). Both gears (13) are meshed with the racks (12). The internal thread of the internal threaded pipe (7) is sleeved with a threaded rod (8). One end of the threaded rod (8) is fixedly connected to the U-shaped plate (5).

3. The oil refining heating furnace control device according to claim 1, characterized in that, Both ends of the rotating rod (3) are rotatably connected to the inner wall of the air inlet pipe (2) through sealed bearings.

4. The oil refining heating furnace control device according to claim 2, characterized in that, The inner walls on both sides of the U-shaped plate (5) abut against the outer wall of the air inlet pipe (2).

5. The oil refining heating furnace control device according to claim 1, characterized in that, Both sides of the rotating plate (4) abut against the inner wall of the air inlet pipe (2).

6. The oil refining heating furnace control device according to claim 2, characterized in that, The inner wall of the U-shaped plate (5) and the outer wall of the air inlet pipe (2) are both coated with a wear-resistant coating.

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