Device for observing state of butadiene-terminated polymer in C203 tower of butadiene device

Abstract

The utility model provides a device for observing the state of a butadiene-terminated polymer in a C203 tower of a butadiene device. The device comprises a high-definition magnifier, a magnifier spotlight, a high-definition camera, a leakproof outer tower wall and a differential pressure gauge. The device can intuitively and effectively observe the generation condition and state of the butadiene white end-group polymer at the position which is easy to initiate polymerization above the 111-layer tray in the high-concentration butadiene C203 tower, and the generation of the butadiene end-group polymer can be found as soon as possible, so that device operators are helped to take effective anti-polymerization measures as soon as possible, and the production efficiency of the high-concentration butadiene C203 tower is improved. Equipment damage caused by gradual accumulation and implosion of the generated butadiene-terminated polymer and fire and explosion accidents caused by overflow of a butadiene medium are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of polymer material preparation technology, specifically relating to a device for observing the state of butadiene end-group polymers in the C203 tower of a butadiene apparatus. Background Technology

[0002] The butadiene unit employs the acetonitrile process to produce butadiene, with products including butadiene, raffinate C4, and residual liquor. During butadiene production, impurities, rust, and oxygen can lead to the formation of butadiene polymers. Butadiene is a conjugated diene with highly reactive chemical properties; below 100°C, it self-polymerizes to form butadiene dimers or butadiene polymers. The polymers generated during butadiene production mainly include butadiene dimers, rubbery polymers, butadiene peroxide self-polymers, and butadiene end-group polymers.

[0003] In actual production, butadiene plants inevitably generate butadiene polymers due to the inherent properties of the butadiene medium. Butadiene end-group polymers are highly cross-linked resinous polymers, extremely dense, non-porous, white, and hard, appearing as transparent or translucent granular crystals. Large butadiene end-group polymers, resembling popcorn, are also known as popcorn polymers. They do not melt upon heating and are insoluble in any organic solvents. Once formed, butadiene end-group polymers begin to grow from this center, branching and spreading uncontrollably, rapidly clogging pipelines and equipment. In severe cases, equipment cracking can lead to the leakage of flammable and explosive butadiene medium, causing serious fires and explosions, forcing the plant to shut down. Research indicates that peroxides and reactive oxygen species are necessary conditions for the formation of popcorn polymers. The presence of oxygen in the system exacerbates butadiene self-polymerization, accelerates equipment blockage, and shortens the plant's operating cycle. The polymerization of popcorn-like polymers is exothermic, so once formed, it will cause the temperature of the system to rise locally. Since the active centers are shielded inside the polymer, the reaction occurs inside the solid and expands outward to form a popcorn shape. At the same time, the heat of polymerization is difficult to dissipate, which accelerates the reaction and forms a popcorn-like structure.

[0004] The formation of butadiene end-group polymers typically occurs within columns with high butadiene concentrations (the C203 column has a butadiene concentration greater than 99.5%, classifying it as a high-concentration column; its 111 trays are located above the reboiler, within a high-temperature zone, and based on practical maintenance experience, observation of end-group polymer formation in this tray is representative). Currently, methods for early detection of butadiene end-group polymers are very limited; by the time they are discovered, a large amount of butadiene end-group polymers have already accumulated within the column. Therefore, early detection of butadiene end-group polymers within the column is a significant production challenge. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention proposes a device for observing the state of butadiene end-group polymers in the C203 column of a butadiene unit, in order to solve the technical problem of how to detect the formation of butadiene end-group polymers in the C203 column as early as possible.

[0007] (II) Technical Solution

[0008] To address the aforementioned technical problems, this utility model proposes a butadiene end-group polymer state observation device for the C203 tower of a butadiene unit. This device, installed on the tower wall of the C203 tower, includes a magnifying glass and a camera. The magnifying glass is positioned on the tower wall of the C203 tower to observe the formation of butadiene end-group polymers inside the tower. The camera is positioned in front of the magnifying glass to transmit the real-time formation of the butadiene end-group polymers to the display screen in the control room.

[0009] Furthermore, the butadiene end-group polymer state observation device is installed on the tower wall above the 111th tray of the C203 tower.

[0010] Furthermore, the butadiene end-group polymer state observation device also includes a magnifying glass light source, which provides a light source for the magnifying glass to observe the formation of butadiene end-group polymers.

[0011] Furthermore, the light source for the magnifying glass is a spotlight.

[0012] Furthermore, the butadiene end-group polymer state observation device also includes a leak-proof outer tower wall, which is set on the outside of the C203 tower wall to protect the magnifying glass and prevent leakage of the medium inside the tower due to damage to the magnifying glass.

[0013] Furthermore, a differential pressure gauge is installed between the magnifying glass and the camera to monitor whether a leak occurs at the magnifying glass.

[0014] Furthermore, the magnifying glass is a high-definition magnifying glass.

[0015] Furthermore, the camera uses a high-definition camera.

[0016] (III) Beneficial Effects

[0017] This invention proposes a device for observing the state of butadiene end-group polymers in the C203 tower of a butadiene unit. The device includes a high-definition magnifying glass, a magnifying glass spotlight, a high-definition camera, a leak-proof outer tower wall, and a differential pressure gauge. This device allows for direct and effective observation of the formation and state of white butadiene end-group polymers in the high-concentration butadiene C203 tower, particularly at locations prone to polymerization above tray 111. Early detection of butadiene end-group polymer formation helps operators take timely and effective anti-polymerization measures, preventing the gradual accumulation and explosive polymerization of butadiene end-group polymers that could lead to equipment damage, as well as fires and explosions caused by butadiene spills. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the butadiene end-group polymer state observation device in the C203 tower of the butadiene unit of this utility model. Detailed Implementation

[0019] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0020] This embodiment proposes a device for observing the state of butadiene end-group polymers within the C203 tower of a butadiene unit, such as... Figure 1 As shown, the butadiene end-group polymer state observation device is installed on the upper wall of tray 6 of the 111th layer of C203 tower 7, and a bottom heater reboiler 8 is installed at the bottom of C203 tower 7.

[0021] The butadiene end-group polymer state observation device includes a high-definition magnifying glass 1, a magnifying glass spotlight 2, a high-definition camera 3, a leak-proof outer tower wall 4, and a differential pressure gauge 5. The high-definition magnifying glass 1 is mounted on the tower wall above tray 6 of layer 111 in the C203 tower 7 to effectively observe the formation of fine butadiene end-group polymers above tray 6. The magnifying glass spotlight 2 provides a light source for the high-definition magnifying glass 1 to observe the formation of butadiene end-group polymers above tray 6. The high-definition camera 3 is positioned in front of the high-definition magnifying glass 1 to transmit the butadiene end-group polymer formation status to the display screen in the control room in real time, allowing staff to safely observe the formation status of the butadiene end-group polymers at any time. The leak-proof outer tower wall 4 is located on the outside of the C203 tower 7 to protect the high-definition magnifying glass 1 and prevent leakage of the tower medium due to damage to the high-definition magnifying glass 1. A differential pressure gauge 5 is installed between the high-definition magnifying glass 1 and the high-definition camera 3. If a leak occurs at the high-definition magnifying glass 1, the differential pressure gauge 5 will display a value, indicating that the medium is leaking at the high-definition magnifying glass 1. The staff will be notified to immediately stop observation and shut down the machine for inspection and repair.

[0022] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A butadiene plant C203 column butadiene end group polymer state observation device characterized by, The butadiene end group polymer state observation device is installed at the tower wall of the C203 tower, and includes a magnifying glass and a camera; the magnifying glass is arranged on the tower wall of the C203 tower and used for observing the generation of butadiene end group polymer in the C203 tower; and the camera is arranged in front of the magnifying glass and used for transmitting the generation of butadiene end group polymer to the display screen of the general control room in real time.

2. The butadiene plant C203 in-tower butadiene end group polymer state observation device of claim 1, wherein, The butadiene end group polymer state observation device is installed at the upper tower wall of the 111 tray of the C203 tower.

3. The butadiene plant C203 in-tower butadiene end group polymer state observation device of claim 1, wherein, The butadiene end group polymer state observation device further includes a magnifying glass light source, which is used for providing a light source for the magnifying glass to observe the generation of butadiene end group polymer.

4. The butadiene plant C203 column end group polymer state observation device according to claim 3, characterized by, The magnifying glass light source is a spotlight.

5. The butadiene plant C203 in-tower butadiene end group polymer state observation device of claim 1, wherein, The butadiene end group polymer state observation device further includes a leakage-proof outer tower wall, which is arranged outside the tower wall of the C203 tower and used for protecting the magnifying glass to prevent leakage of the medium in the tower due to damage of the magnifying glass.

6. The butadiene plant C203 in-tower butadiene end group polymer state observation device of claim 1, wherein, A differential pressure gauge is arranged between the magnifying glass and the camera and used for monitoring whether leakage occurs at the magnifying glass.

7. The butadiene plant C203 in-tower butadiene end group polymer state observation device of claim 1, wherein, The magnifying glass is a high-definition magnifying glass.

8. The butadiene plant C203 in-tower butadiene end group polymer state observation device of claim 1, wherein, The camera is a high-definition camera.

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