Temperature monitoring device for continuous nitration reactor

Abstract

The utility model discloses a temperature monitoring device for a continuous nitration reactor, which comprises a reactor, a monitoring shell and an alarm, a stirring shaft is rotatably connected in the reactor through a rotating shaft, stirring blades are connected onto the stirring shaft, the monitoring shell is arranged at the top of the reactor, and a heated sheet is arranged at the bottom of the monitoring shell and extends into the reactor. A heat conduction pipe is arranged in the monitoring shell, the bottom of the heat conduction pipe is connected with the heated piece, the alarm is arranged at the top of the reactor, and a temperature detection probe in the monitoring shell is connected with the heated piece extending into the reactor through the heat conduction pipe, so that the temperature detection probe can more accurately obtain temperature information in the reactor, and the area of the heated piece is large; heat of reaction liquid can be fully absorbed, then the heat is efficiently transmitted to the temperature detection probe through the heat conduction pipe, reliable basis is provided for temperature abnormity judgment, and the equipped alarm can rapidly give an alarm to remind workers to take measures when the temperature in the reactor is detected to be abnormal by the temperature detection probe.

Description

Technical Field

[0001] This invention belongs to the field of nitration reactor technology, specifically relating to a temperature monitoring device for a continuous nitration reactor. Background Technology

[0002] In modern chemical industry, continuous nitration reactors have become a key process for the preparation of nitro compounds due to their advantages such as high efficiency and strong production capacity. The production of many important chemical products, such as dye intermediates and pharmaceutical raw materials, depends on continuous nitration reactions. However, continuous nitration reactions are typical strongly exothermic reactions, which release a large amount of heat during the reaction process. Therefore, it is necessary to monitor the temperature inside the continuous nitration reactor.

[0003] In most cases, existing monitoring equipment requires manual reading of temperature data at regular intervals. This is not only inefficient but also prone to inaccurate or missing data records due to human negligence. Furthermore, operators need to constantly monitor the temperature data to determine whether the reaction temperature is normal. However, manual monitoring has unavoidable limitations. When the reaction temperature rises rapidly due to sudden reasons, operators may fail to detect it in time. By the time the temperature abnormality is discovered and measures are taken, the reaction has already spiraled out of control, causing serious product quality problems. It is impossible to detect abnormal temperature changes in a timely manner. Utility Model Content

[0004] The purpose of this invention is to provide a temperature monitoring device for a continuous nitration reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature monitoring device for a continuous nitration reactor, comprising:

[0006] A reactor, wherein a stirring shaft is rotatably connected to the reactor via a rotating shaft and stirring blades for stirring the reactants are connected to the stirring shaft;

[0007] A monitoring shell is located at the top of the reactor and is used to monitor the temperature inside the reactor. The bottom of the monitoring shell is provided with a heating plate that extends into the reactor. A heat-conducting pipe is provided inside the monitoring shell and the bottom of the heat-conducting pipe is connected to the heating plate.

[0008] An alarm, located at the top of the reactor, is used to sound an alarm when a temperature is generated inside the reactor.

[0009] Preferably, the monitoring housing is equipped with a temperature detection probe, and the temperature detection probe is in contact with the heat pipe.

[0010] Preferably, the reactor is equipped with a motor at the top, and the output shaft of the motor is connected to the stirring shaft.

[0011] Preferably, the top of the reactor is connected to a housing shell, the alarm is slidably connected inside the housing shell, and both sides of the housing shell are provided with grooves, and the bottom ends of the alarm are slidably connected to the grooves by sliders.

[0012] Preferably, the storage shell is connected to an inner shell, and the inner shell is equipped with an electric push rod.

[0013] Preferably, one end of the electric push rod is connected to a straight rod, and the top of the straight rod slides through the inner shell and connects to the alarm.

[0014] Preferably, a feed pipe is provided on one side of the top of the reactor.

[0015] Preferably, the reactor is provided with a discharge pipe at the bottom.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) The temperature detection probe inside the monitoring shell is connected to the heating plate extending into the reactor through a heat pipe, which enables the temperature detection probe to obtain the temperature information inside the reactor more accurately. The heating plate has a large area and can fully absorb the heat of the reaction liquid, which is then efficiently transferred to the temperature detection probe through the heat pipe, reducing the error of temperature detection and providing a reliable basis for judging temperature anomalies. The equipped alarm can quickly issue an alarm when the temperature inside the reactor is detected as abnormal by the temperature detection probe, reminding the workers to take measures.

[0018] (2) The alarm is slidably connected to the storage shell, and the electric push rod inside the storage shell can control the raising and lowering of the alarm. In different production environments, the position of the alarm can be adjusted by the electric push rod. In a noisy workshop, the alarm can be raised to make its sound more clearly and ensure that the operator can hear the alarm in time. In places with limited space, the alarm can be stored in the storage shell to save space and avoid collision damage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the reactor of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the storage shell of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the monitoring shell of this utility model.

[0023] In the diagram: 1. Reactor; 2. Stirring shaft; 3. Stirring blades; 4. Monitoring shell; 5. Heating plate; 6. Heat pipe; 7. Alarm; 8. Temperature detection probe; 9. Motor; 10. Storage shell; 11. Slide groove; 12. Sliding block; 13. Inner shell; 14. Electric push rod; 15. Feed pipe; 16. Discharge pipe; 17. Straight rod. Detailed Implementation

[0024] 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.

[0025] This utility model provides, for example Figure 1-4 A temperature monitoring device for a continuous nitration reactor, shown, includes:

[0026] Reactor 1, wherein a stirring shaft 2 is rotatably connected to the reactor 1 via a rotating shaft and stirring blades 3 for stirring the reactants are connected to the stirring shaft 2;

[0027] The monitoring shell 4 is located at the top of the reactor 1 and is used to monitor the temperature inside the reactor 1. The bottom of the monitoring shell 4 is provided with a heating plate 5 that extends into the reactor 1. The monitoring shell 4 is provided with a heat-conducting pipe 6 and the bottom of the heat-conducting pipe 6 is connected to the heating plate 5.

[0028] Alarm 7, which is located on top of reactor 1, is used to sound an alarm when a temperature is generated inside reactor 1.

[0029] The monitoring housing 4 is equipped with a temperature detection probe 8, which is in contact with the heat pipe 6.

[0030] The reactor 1 is equipped with a motor 9 at the top, and the output shaft of the motor 9 is connected to the stirring shaft 2.

[0031] The reactor 1 is connected to a housing shell 10 at the top. The alarm 7 is slidably connected inside the housing shell 10. The housing shell 10 has grooves 11 on both sides, and the bottom ends of the alarm 7 are slidably connected to the grooves 11 by sliders 12. The sliders 12 guide the movement direction of the alarm 7, which can enhance the stability of the movement of the alarm 7.

[0032] The storage shell 10 is connected to an inner shell 13, and an electric push rod 14 is provided inside the inner shell 13.

[0033] One end of the electric push rod 14 is connected to a straight rod 17, and the top of the straight rod 17 slides through the inner shell 13 and is connected to the alarm 7.

[0034] The reactor 1 is provided with a feed pipe 15 on one side of the top, through which reactants can be added into the reactor 1 for reaction.

[0035] The reactor 1 is equipped with a discharge pipe 16 at the bottom. When the material reaches a certain reaction time or reaction degree, the reaction product can be discharged from the bottom of the reactor 1 through the discharge pipe 16.

[0036] This temperature monitoring device for a continuous nitration reactor allows reactants to be added to reactor 1 via feed pipe 15. As the reactants react, the temperature of the reaction liquid changes, and the heat is transferred to the heating plate 5. The heating plate 5 has excellent thermal conductivity and can quickly absorb the heat from the reaction liquid. The heat is then transferred to the monitoring shell 4 via heat pipe 6. The temperature detection probe 8 contacts the heat pipe 6, sensing the temperature change and converting the temperature information into an electrical signal. The temperature detection probe 8 continuously transmits these electrical signals to a connected control circuit (not shown in the figure). The control circuit analyzes and processes the temperature data and displays it on a screen on the surface of the monitoring shell 4. The control circuit has a preset normal temperature range (e.g., 0-60℃). When the temperature data transmitted by the temperature detection probe 8 exceeds this preset maximum value, the control circuit immediately issues a command to activate alarm 7. Upon receiving the command, alarm 7 emits an audible and visual alarm signal, reminding the operator that the temperature inside reactor 1 is abnormal and that timely measures need to be taken, such as adjusting reaction conditions and checking equipment operation, to prevent the reaction from spiraling out of control.

[0037] When the position of the alarm 7 needs to be adjusted, the operator can control the electric push rod 14 to start through the external controller. After the electric push rod 14 is powered on, the push rod inside pushes the straight rod 17 to move in a straight line. The top of the straight rod 17 is connected to the alarm 7. As the straight rod 17 rises or falls, the alarm 7 slides in the grooves 11 on both sides of the storage shell 10 through the sliders 12 at both ends of the bottom, thereby realizing the adjustment of the position of the alarm 7.

[0038] When the motor 9 is powered on, its output shaft drives the stirring shaft 2 to rotate. The stirring blades 3 on the stirring shaft 2 rotate together with the stirring shaft 2, applying force to the reactants in the reactor 1. The spiral shape and rotation of the stirring blades 3 cause the reaction liquid to flow axially and radially, promoting thorough mixing between the reactants. During the mixing process, the heat generated by the reaction is also evenly distributed, avoiding excessively high local temperatures and ensuring that the reaction is carried out under relatively stable temperature conditions, thereby improving the efficiency of the reaction and the quality of the product. When a certain reaction time or degree is reached, the product is discharged from the bottom of the reactor 1 through the discharge pipe 16.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature monitoring device for a continuous nitration reactor, characterized in that, include: The reactor (1) is connected to a stirring shaft (2) via a rotating shaft, and the stirring shaft (2) is connected to stirring blades (3) for stirring the reactants. The monitoring shell (4) is located at the top of the reactor (1) and is used to monitor the temperature inside the reactor (1). The bottom of the monitoring shell (4) is provided with a heating plate (5) and the heating plate (5) extends into the reactor (1). The monitoring shell (4) is provided with a heat-conducting pipe (6) and the bottom of the heat-conducting pipe (6) is connected to the heating plate (5). An alarm (7) is located on top of the reactor (1) and is used to sound an alarm when a temperature is generated inside the reactor (1).

2. The temperature monitoring device for a continuous nitration reactor according to claim 1, characterized in that: The monitoring housing (4) is equipped with a temperature detection probe (8) and the temperature detection probe (8) is in contact with the heat pipe (6).

3. The temperature monitoring device for a continuous nitration reactor according to claim 1, characterized in that: The reactor (1) is equipped with a motor (9) at the top, and the output shaft of the motor (9) is connected to the stirring shaft (2).

4. The temperature monitoring device for a continuous nitration reactor according to claim 1, characterized in that: The reactor (1) is connected to a storage shell (10) at the top. The alarm (7) is slidably connected inside the storage shell (10). The storage shell (10) has grooves (11) on both sides, and the bottom ends of the alarm (7) are slidably connected to the grooves (11) by sliders (12).

5. A temperature monitoring device for a continuous nitration reactor according to claim 4, characterized in that: The storage shell (10) is connected to an inner shell (13), and an electric push rod (14) is provided inside the inner shell (13).

6. A temperature monitoring device for a continuous nitration reactor according to claim 5, characterized in that: One end of the electric push rod (14) is connected to a straight rod (17), and the top of the straight rod (17) slides through the inner shell (13) and is connected to the alarm (7).

7. A temperature monitoring device for a continuous nitration reactor according to claim 1, characterized in that: The reactor (1) is provided with a feed pipe (15) on one side of the top.

8. A temperature monitoring device for a continuous nitration reactor according to claim 1, characterized in that: The reactor (1) is equipped with a discharge pipe (16) at the bottom.

Images