Dangerous chemical diazotization process practical training device
The training device for hazardous chemical diazotization process, which simulates the actual production environment, solves the problem of new employees lacking professional knowledge and enables them to have a safe and controllable process learning experience and in-depth understanding.
Patent Information
- Application Number
- CN202423091501.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-13
AI Technical Summary
New employees lack professional knowledge of the hazardous diazotization process, and the traditional master-apprentice model poses safety risks and makes it difficult to fully grasp the process details and equipment layout.
Design a training device for hazardous chemical diazotization process. By optimizing the physical space layout, it simulates the actual production environment and includes a simplified layout of equipment such as reflux tower, bottom pump, diazotization reactor, and diazonium salt reduction reactor. It provides start-up and shutdown training content and provides in-depth analysis of process safety characteristics.
It enables trainees to experience the entire process from start-up to shutdown in a safe and controllable environment, helping them quickly master process knowledge, reducing learning difficulty, and improving safety and depth of understanding.
Smart Images
Figure CN223628619U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dangerous chemical heavy diazo chemical process practical training device belongs to chemical teaching equipment technical field. BACKGROUND
[0002] According to the notification of the State Administration of Work Safety about publishing the first batch of dangerous chemical process directory of key supervision No. 116 and the notification of the State Administration of Work Safety about publishing the second batch of dangerous chemical process directory of key supervision and adjusting the first batch of dangerous chemical process directory of key supervision No. 3, there are 18 kinds of dangerous chemical process of key supervision. Dangerous chemical heavy diazo chemical process is one of the processes that need to be supervised. The reaction raw material has the risk of burning and explosion. At present, many new employees who participate in the production and operation of dangerous chemical heavy diazo chemical process lack professional knowledge and mainly rely on the on-site guidance of the old employees, learning through walking and talking and operating and experience transmission. However, this traditional "master teaches apprentice" mode not only hides safety risks, but also cannot ensure that the students can fully and deeply master the use details of the related equipment, and cannot let the students grasp the process of dangerous chemical heavy diazo chemical process and the spatial relationship of equipment layout as a whole. SUMMARY
[0003] The utility model aims at providing dangerous chemical heavy diazo chemical process practical training device.
[0004] The utility model aims at providing dangerous chemical heavy diazo chemical process practical training device through the optimization design of physical space layout.
[0005] In order to realize the utility model's purpose, the utility model adopts the technical scheme that:
[0006] Dangerous chemical heavy diazo chemical process practical training device, including reflux tower tower kettle pump, heavy diazo reaction kettle, heavy diazo salt reduction kettle, reflux tower tower top condenser, reduction liquid output pump, reflux tower, reflux tower tower bottom heater, heavy diazo reaction kettle is connected with heavy diazo salt reduction kettle through the pipeline, heavy diazo salt reduction kettle is connected with reduction liquid output pump through the pipeline, reduction liquid output pump is connected with reflux tower through the pipeline, heavy diazo salt reduction kettle is connected with reflux tower tower bottom heater through the pipeline, reduction liquid output pump is connected with reflux tower tower bottom heater through the pipeline, reflux tower is connected with reflux tower tower top condenser through the pipeline, reflux tower is connected with reflux tower tower bottom heater through the pipeline.
[0007] As preferably, the dangerous chemical heavy diazo chemical process practical training device includes two-layer frame, and the left side of the two-layer frame is equipped with stairs.
[0008] As preferably, the heavy diazo reaction kettle, the heavy diazo salt reduction kettle and the reflux tower tower top condenser are all installed on the upper layer of the two-layer frame.
[0009] As preferably, the reflux tower kettle pump, reduction liquid output pump, full reflux pump, reflux tower bottom heater, are installed in the second floor frame lower layer.
[0010] The utility model has the advantages of:
[0011] 1、The real training device reflects the pipeline connection structure of reflux tower kettle pump, diazotization reaction kettle, diazonium salt reduction kettle, reflux tower overhead condenser, reduction liquid output pump, reflux tower, reflux tower bottom heater, reflects the process of diazotization reaction and the material flow process after reaction.
[0012] 2、Compared with the traditional technology, the device intuitively displays the installation correlation and functional characteristics of each component in the diazotization reaction process through careful planning of equipment layout, provides an effective way for factory newcomers and students to quickly master the process knowledge.The device skillfully simplifies the complex chemical process, only retains the core general and specific unit equipment, retains the process essence and reduces the learning difficulty.The device specially prepares start and stop training content, not only covers the basic process of process operation, but also deeply analyzes the dangerous characteristics in the process and the setting logic of key monitoring parameters, which helps learners to deeply understand the process safety points.Through simulating the actual production scene, the system enables students to experience the whole process from starting to stopping in a safe and controllable environment, thereby deepening the understanding and mastery of the diazotization process.
[0013] 3、The system can also meet the needs of undergraduate and vocational teaching, and can carry out hazardous chemical production process operation training, equipment cognition training, equipment inspection and maintenance training and safety operation training. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the front view of the hazardous chemical diazotization process training device of the utility model;
[0015] Figure 2 It is the right view of the hazardous chemical diazotization process training device of the utility model;
[0016] Figure 3 It is the perspective view of the hazardous chemical diazotization process training device of the utility model;
[0017] Figure 4 It is the detailed process flow diagram Figure 1 ;
[0018] Figure 5 It is the detailed process flow diagram Figure 2 ;
[0019] Figure 6 It is the partial enlarged view of the process flow diagram of the diazotization reaction kettle;
[0020] Figure 7 is a partial enlarged view of the process flow diagram of the reflux tower;
[0021] In the figure: 1, reflux tower kettle pump 2, diazotization reaction kettle 3, diazonium salt reduction kettle 4, reflux tower overhead condenser 5, reduction liquid output pump 6, reflux tower 7, reflux tower bottom heater. DETAILED DESCRIPTION
[0022] The technical scheme of the present application will be further described below with reference to the drawings and examples.
[0023] The technical scheme of the present application will be further described below with reference to the drawings and examples.
[0024] As shown in Figure 1 The hazardous diazotization process practical training device comprises a reflux tower kettle pump 1, a diazotization reaction kettle 2, a diazonium salt reduction kettle 3, a reflux tower overhead condenser 4, a reduction liquid output pump 5, a reflux tower 6, and a reflux tower bottom heater 7. The diazotization reaction kettle 2 is connected with the diazonium salt reduction kettle 3 through a pipeline, the diazonium salt reduction kettle 3 is connected with the reduction liquid output pump 5 through a pipeline, the reduction liquid output pump 5 is connected with the reflux tower 6 through a pipeline, the diazonium salt reduction kettle 3 is connected with the reflux tower bottom heater 7 through a pipeline, the reduction liquid output pump 5 is connected with the reflux tower bottom heater 7 through a pipeline, the reflux tower 6 is connected with the reflux tower overhead condenser 4 through a pipeline, and the reflux tower 6 is connected with the reflux tower bottom heater 7 through a pipeline.
[0025] The hazardous diazotization process practical training device comprises a two-layer frame, and a staircase is arranged on the left side of the two-layer frame.
[0026] The diazotization reaction kettle 2, the diazonium salt reduction kettle 3, and the reflux tower overhead condenser 4 are all installed on the upper layer of the two-layer frame.
[0027] The reflux tower bottom pump 1, the reducing liquid output pump 5, the total reflux pump, and the reflux tower bottom heater 7 are all installed on the lower layer of the second-layer frame.
[0028] like Figures 1-6 As shown, aniline from the tank area enters the diazotization reactor 2 and reacts with sodium nitrate in hydrochloric acid at low temperature. The resulting diazonium hydrochloride enters the diazonium salt reduction reactor 3 and undergoes a reduction reaction with ammonium bisulfite and ammonium bicarbonate. The product after the reduction reaction is sent to the reflux tower 6 via the reducing liquid output pump 5. In the reflux tower 6, the material is condensed and refluxed via the top condenser 4, while the bottom heater 7 heats and concentrates it. After acid precipitation, phenylhydrazine hydrochloride is generated, which is then sent to the filtration system in subsequent processes via the bottom pump 1 of the reflux tower. Throughout the process, the material in the diazonium salt reduction reactor 3 can be connected to the bottom heater 7 of the reflux tower for material circulation. The heating steam shut-off valves of the reducing liquid output pump 5 and the bottom heater 7 of the reflux tower are interlocked with the temperature and pressure of the reflux tower 6. When the reflux tower 6 experiences over-temperature / over-pressure conditions, the SIS interlock is activated, the reducing liquid delivery pump stops, and the heating steam of the bottom heater 7 of the reflux tower is shut off to ensure system safety.
[0029] This training device demonstrates the piping connections of components such as the reflux tower bottom pump 1, diazotization reactor 2, diazonium salt reduction reactor 3, reflux tower top condenser 4, reducing liquid output pump 5, reflux tower 6, and reflux tower bottom heater 7, illustrating the diazotization reaction process and the subsequent material flow. Compared to traditional technologies, this device, through its carefully planned equipment layout, intuitively showcases the installation relationships and functional characteristics of each component in the diazotization process, providing a quick and effective way for new factory workers and students to master this process. This device cleverly simplifies complex chemical processes, retaining only core general and specific unit equipment, preserving the essence of the process while reducing the learning difficulty. The device includes specially designed start-up and shutdown training content, covering not only the basic process operation procedures but also in-depth analysis of the hazardous characteristics of the process and the setting logic of key monitoring parameters, helping learners to deeply understand the key points of process safety. By simulating actual production scenarios, the system allows trainees to experience the entire process from start-up to shutdown in a safe and controllable environment, thereby deepening their understanding and mastery of the diazotization process.
Claims
1. A dangerous chemical diazotization process practical training device, comprising a reflux tower kettle pump (1), a diazotization reaction kettle (2), a diazonium salt reduction kettle (3), a reflux tower overhead condenser (4), a reduction liquid output pump (5), a reflux tower (6), a reflux tower bottom heater (7), characterized in that, The diazotization reaction kettle (2) is connected with the diazonium salt reduction kettle (3) through a pipeline, the diazonium salt reduction kettle (3) is connected with the reduction liquid output pump (5) through a pipeline, the reduction liquid output pump (5) is connected with the reflux tower (6) through a pipeline, the diazonium salt reduction kettle (3) is connected with the reflux tower bottom heater (7) through a pipeline, the reduction liquid output pump (5) is connected with the reflux tower bottom heater (7) through a pipeline, the reflux tower (6) is connected with the reflux tower top condenser (4) through a pipeline, and the reflux tower (6) is connected with the reflux tower bottom heater (7) through a pipeline.
2. The hazardous chemical diazotization process training device according to claim 1, characterized in that, The dangerous chemical diazotization process practical training device comprises a two-layer frame.
3. The hazardous chemical diazotization process training device according to claim 1, characterized in that, The diazotization reaction kettle (2), the diazonium salt reduction kettle (3) and the reflux tower top condenser (4) are all installed on the upper layer of the two-layer frame.
4. The hazardous chemical diazotization process training device according to claim 1, characterized in that, The reflux tower kettle pump (1), the reduction liquid output pump (5), the full reflux pump and the reflux tower bottom heater (7) are all installed on the lower layer of the two-layer frame.