Internal reflux device for experimental rectifying tower

Abstract

The internal reflux device for the experimental rectifying tower comprises a tower body assembly, a sensing assembly and a heating assembly, the sensing assembly is arranged in the tower body assembly, the tower body assembly is fixedly connected with the sensing assembly, the heating assembly is arranged in the tower body assembly, the tower body assembly is fixedly connected with the heating assembly, and the heating assembly is fixedly connected with the sensing assembly. The feeding port is formed in the top of the tank body, a worker can fill the tank body with materials through the feeding port, a screen is arranged in the feeding port, pretreatment can be conducted on the tank body, and when the device works for a period of time, impurities are accumulated on the screen, and the impurities can be discharged out of the tank body. Due to the fact that the feeding port is in threaded connection with the screen, replacement and cleaning by workers are facilitated, a sensor is arranged on the inner wall of the inner shell, and a comprehensive controller and a heating assembly are arranged on the outer wall of the inner shell, through cooperative use, the inner shell can be heated, liquid in the inner shell is prevented from crystallizing, the workload of the workers is reduced, and the working efficiency is improved. And the working efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of an internal reflux device for a distillation process in the chemical industry, in particular to an internal reflux device for an experimental distillation tower. Background Art

[0002] The principle of distillation is that the material to be distilled is added from the middle of the distillation tower. The tower section above the feed port is the distillation section, which is used to concentrate the volatile components in the rising steam. The tower section below the feed port is the stripping section, which is used to extract the volatile components from the descending liquid. A condenser is set at the top of the distillation tower to condense the material vapor drawn from the top of the distillation tower into a liquid product and extract it. In order to ensure the purity of the extracted product, a part of the material vapor condensate needs to be refluxed to the distillation tower for re-distillation, and the qualified product is obtained by adjusting the reflux ratio. For the case of using a small distillation tower to distill easily crystallized materials, such as dispersants (which are mainly used for dispersed polytetrafluoroethylene resins, polyvinylidene fluoride resins, perfluoroethylene propylene resins, fluororubbers, fluoroether rubbers and other important surfactants), in the production process of dispersants, the distillation tower has a diameter of 150mm and a height of 8m. The hourly distillation capacity is 6.625Kg, the dispersant melting point is 45℃, and the density is 1.7 (relative to water). Due to the low production capacity of dispersants and the complex composition of dispersants, the distillation tower must control a small reflux rate during operation. Due to the small distillation capacity (only at the Kg level), it is very difficult to control the reflux ratio. Adjusting the appropriate reflux ratio is the bottleneck problem for obtaining qualified products. At the same time, due to the high melting point of the dispersant, it is solid at room temperature. During normal operation, external heating and other insulation measures must be added to prevent crystallization, which increases the difficulty of operation. Therefore, it is necessary to develop a device to solve the above problems. Currently, there are patents that solve the above problems, such as patent No. CN210583725U, a reflux device in a distillation tower, including a cylinder, an annular support plate, a reflux cap, a reflux hole, and a production pipe. By adjusting the opening of the production valve and controlling the appropriate reflux ratio through the production volume, qualified products are obtained, which solves the problem that the reflux ratio of easily crystallized materials is difficult to control under the working conditions of a small distillation tower, greatly reduces the difficulty of reflux ratio control, and innovates the external reflux device of the distillation tower into a built-in reflux device. The material temperature of the built-in reflux device is consistent with that of the top of the distillation tower, which solves the problem that the external reflux device of the easily crystallized material needs to add insulation measures such as heating to prevent crystallization.

[0003] The above patent still has certain problems when working. When the device is operating normally, it is necessary to add external heating and other insulation measures to prevent crystallization. The material temperature of the built-in reflux device and the temperature at the top of the distillation tower are not consistent, which greatly affects the working efficiency of the device. Therefore, we proposed an internal reflux device for experimental distillation towers. Utility Model Content

[0004] According to the above existing technical problems, the utility model provides an internal reflux device for an experimental distillation tower, which is characterized by comprising a tower body component, a sensor component, and a heating component. The tower body component is provided with a sensor component inside, the tower body component is fixedly connected to the sensor component, the tower body component is provided with a heating component inside, the tower body component is fixedly connected to the heating component, the sensor component is electrically connected to the heating component,

[0005] The tower assembly is composed of a tank body, a feed port, a screen, and an inner shell. The top of the tank body is provided with a feed port, a screen is provided inside the feed port, the feed port and the screen are connected by threads, an inner shell is provided inside the tank body, and the tank body and the inner shell are fixedly connected.

[0006] The sensor assembly is composed of a sensor and an integrated controller. The inner wall of the inner shell is provided with a sensor, the inner shell is fixedly connected to the sensor, the outer wall of the inner shell is provided with an integrated controller, the inner shell is fixedly connected to the integrated controller, and the sensor is wirelessly connected to the integrated controller.

[0007] The heating component is composed of a heating coil, which surrounds the outer wall of the inner shell, is connected to a power source, and is electrically connected to an integrated controller.

[0008] The beneficial effects of the utility model include: an internal reflux device for an experimental distillation tower, wherein a feed port is arranged on the top of the tank body, and a worker can fill the tank body with material through the feed port, and a screen is arranged in the feed port for pre-treatment, and debris accumulates on the screen after the device has worked for a period of time. Since the feed port and the screen are connected by threads, it is convenient for the worker to replace and clean the debris, and a sensor is arranged on the inner wall of the inner shell body, and an integrated controller and a heating component are arranged on the outer wall of the inner shell body, and the inner shell body can be heated by coordinated use to prevent the liquid in the inner shell body from crystallizing, thereby reducing the workload for the worker and increasing the work efficiency of the worker. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a cross-sectional view of the overall structure of an internal reflux device for an experimental distillation tower of the utility model;

[0010] In the figure: 1. tank body, 2. feed port, 3. screen, 4. inner shell, 5. sensor, 6. integrated controller, 7. heating component. DETAILED DESCRIPTION

[0011] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0014] Example 1

[0015] An internal reflux device for an experimental distillation tower is characterized in that a feed port 2 is provided on the top of a tank body 1, a screen 3 is provided inside the feed port 2, the feed port 2 and the screen 3 are connected by threads, an inner shell 4 is provided inside the tank body 1, the tank body 1 is fixedly connected to the inner shell 4, a sensor 5 is provided on the inner wall of the inner shell 4, the inner shell 4 is fixedly connected to the sensor 5, an integrated controller 6 is provided on the outer wall of the inner shell 4, the inner shell 4 is fixedly connected to the integrated controller 6, the sensor 5 is wirelessly connected to the integrated controller 6, and a heating component 7 is composed of a heating coil, the heating coil surrounds the outer wall of the inner shell, the heating coil is connected to a power supply, and the heating coil is electrically connected to the integrated controller 6.

[0016] An internal reflux device for an experimental distillation tower. The utility model includes a tank body, a feed port, a screen, an inner shell body, a sensor, an integrated controller, and a heating component. First, a worker discharges the distillate into the inner shell body through the feed port. During this process, impurities in the distillate are isolated by the screen in the feed port. A sensor is provided inside the inner shell body, and then an integrated controller is provided on the outer wall of the inner shell body, and a heating coil is provided on the outer wall of the inner shell body. After the distillate enters the inner shell body, in order to prevent crystallization, when the temperature is too low, the sensor transmits a signal to the integrated controller, and the integrated controller is electrically connected to the heating coil, and then the integrated controller controls the heating coil to heat.

[0017] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An internal reflux device for an experimental distillation tower is characterized by It includes a tower body component, a sensor component and a heating component. The sensor component is arranged inside the tower body component, the tower body component is fixedly connected to the sensor component, the heating component is arranged inside the tower body component, the tower body component is fixedly connected to the heating component, and the sensor component is electrically connected to the heating component.

2. The internal reflux device for an experimental distillation tower according to claim 1, characterized in that The tower body assembly consists of a tank body, a feed port, a screen, and an inner shell. The top of the tank body is provided with a feed port, a screen is provided inside the feed port, the feed port and the screen are connected by threads, an inner shell is provided inside the tank body, and the tank body is fixedly connected to the inner shell.

3. The internal reflux device for an experimental distillation tower according to claim 2, characterized in that The sensing component consists of a sensor and an integrated controller. The inner wall of the inner shell is provided with a sensor, the inner shell is fixedly connected to the sensor, the outer wall of the inner shell is provided with an integrated controller, the inner shell is fixedly connected to the integrated controller, and the sensor is wirelessly connected to the integrated controller.

4. The internal reflux device for an experimental distillation tower according to claim 3, characterized in that The heating component is composed of a heating coil, which surrounds the outer wall of the inner shell, is connected to a power source, and is electrically connected to an integrated controller.

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