A multi-layer heating structure reboiler

Abstract

The application discloses a kind of multilayer heating structure reboiler, it is related to the field of reboiler, including shell, layering baffle, flow guide pipe, heater and PLC, the shell is vertically arranged, the top of the shell is provided with liquid inlet exhaust port, the bottom of the shell is provided with liquid outlet, the layering baffle is evenly arranged in shell, and the shell is divided into several heating cavities, the outer wall of each heating cavity is provided with heater, the PLC is arranged in the side of shell, the heater is electrically connected with PLC, the flow guide pipe is arranged at the center position of layering baffle, the flow guide pipe is communicated with layering baffle, overflow port is formed in the flow guide pipe.The application adopts multilayer heating mode to heat raw material liquid, can continuously heat raw material liquid, so that the output power of heater to raw material liquid is more stable, and the column pressure of distillation column is also more stable.

Description

Technical Field

[0001] This invention belongs to the field of reboilers, and specifically relates to a reboiler with a multi-layer heating structure. Background Technology

[0002] A reboiler, also known as a reheater, is often used in conjunction with a distillation column. It is typically located at the bottom or side of the column and is used to vaporize a portion of the liquid product, returning it to the column as a vapor reflux. This allows for mass transfer between the vapor and liquid phases within the column and provides the heat required for distillation. Typically, 25-30% of the liquid phase is vaporized in the reboiler. The vaporized two-phase flow is returned to the distillation column; the vapor component rises through the trays, while the liquid component falls back to the bottom.

[0003] Traditional vertical reboilers are typically a continuous structure, resulting in a short residence time for the feed liquid, which prevents effective vaporization. Furthermore, when the liquid products from the distillation column are vaporized in the reboiler, the change in the state of the feed liquid can easily cause instability in the column pressure, thereby affecting the fractionation effect of the distillation column.

[0004] Therefore, how to provide a multi-layer reboiler that can store raw material liquid and continuously heat the raw material liquid has become a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a multi-layer heating structure reboiler. By setting multiple reinforcing chambers, the present invention can store and heat the raw material liquid in layers, making the output power of the heater to the liquid raw material more stable, thereby making the tower pressure more stable.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-layer heating reboiler, comprising a shell, layered partitions, a drain pipe, a heater, and a PLC. The layered partitions are evenly arranged in the shell, dividing the shell into several heating chambers. The outer wall of each heating chamber is surrounded by a heater. The PLC is located on one side of the shell, and the heater is electrically connected to the PLC. The drain pipe is located at the center of the layered partitions and is connected to the layered partitions. An overflow port is provided on the drain pipe.

[0007] Furthermore, it also includes a baffle cap, which is disposed at the top of the drainage tube. The baffle cap is in the shape of an inverted cone and has a pointed tip at its top.

[0008] Furthermore, it also includes a temperature sensor, which is disposed on the cavity wall of each heating chamber and is electrically connected to the PLC.

[0009] Furthermore, it also includes a support frame, which is disposed in the housing and is fixedly connected to the drainage tube for fixing the drainage tube.

[0010] Furthermore, two partitions are provided to divide the shell into three layers.

[0011] The beneficial effects of this invention are as follows:

[0012] This invention divides the reboiler into multiple layers. The feed liquid first fills the first layer and then overflows into the next layer, allowing the reboiler to store a certain amount of feed liquid and continuously heat it. This enables the feed liquid to be effectively vaporized, making the output power of the reboiler more stable, which in turn makes the pressure of the distillation column more stable. At the same time, multiple separate heaters are set up to make the temperature control of the reboiler more precise. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main body of the invention;

[0014] Figure 2 This is a schematic diagram of the drainage tube structure of the present invention.

[0015] In the diagram: 1-Housing; 2-Liquid inlet and vent outlet; 3-Drain outlet; 4-Layered partition; 5-Drainage pipe; 6-Heater; 7-Baffle cap; 8-Support frame; 9-Overflow outlet; 10-Temperature sensor. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "horizontal," "inner," "outer," and "one side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example 1

[0018] like Figure 1-2 As shown, this embodiment provides a multi-layer heating structure reboiler, including a shell 1, layered partitions 4, a drain pipe 5, a heater 6, and a PLC.

[0019] In this embodiment, the shell 1 is vertically arranged. The top of the shell 1 is provided with a liquid inlet and exhaust outlet 2, and the bottom of the shell 1 is provided with a liquid outlet 3. The layered partitions 4 are evenly arranged in the shell 1. In this embodiment, there are two layered partitions 4, which divide the shell 1 into three layers to form three heating chambers. The outer walls of the three heating chambers are all surrounded by heaters 6. The heating chambers are also provided with detection holes, and temperature sensors 10 are provided in the detection holes. The PLC is located on one side of the shell 1. The heaters 6 and temperature sensors 10 are electrically connected to the PLC. By setting multiple temperature sensors 10 and multiple heaters 6, individual temperature control of each heating chamber can be achieved, making the temperature control of the reboiler more accurate and the output power more stable.

[0020] The drainage pipe 5 is welded to the center of the layered partition 4 and is connected to the layered partition 4. An overflow port 9 is provided at the upper end of the drainage pipe 5. The height of the overflow port 9 can be set according to actual needs. The arrangement of the drainage pipe 5 and the overflow port 9 allows for the layered storage of the raw material liquid. The raw material liquid first fills the first layer, reaching the overflow port to enter the second layer, and then, once the second layer is full, it flows through the overflow port into the third layer. This three-layer heating chamber arrangement ensures more uniform heating. A support frame 8 is also provided in the shell 1. The support frame 8 is fixedly connected to the drainage pipe 5 to secure it and prevent it from tipping over. A baffle cap 7 is provided at the top of the drainage pipe 5. The baffle cap 7 is inverted conical in shape with a pointed tip, preventing the raw material liquid from directly flowing into the overflow port 9.

[0021] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A reboiler with a multi-layer heating structure, characterized in that: The device includes a housing, layered partitions, a drain pipe, a heater, and a PLC. The housing is vertically oriented, with a liquid inlet and outlet at the top and a drain outlet at the bottom. The layered partitions are evenly arranged within the housing, dividing it into several heating chambers. Each heating chamber has a heater surrounding its outer wall. The PLC is located on one side of the housing, and the heater is electrically connected to the PLC. The drain pipe is located at the center of the layered partitions and is connected to the partitions. An overflow port is provided on the drain pipe. It also includes a baffle cap, which is disposed at the top of the drainage tube. The baffle cap is inverted conical in shape and has a pointed tip at the top. It also includes a support frame, which is disposed in the housing and is fixedly connected to the drainage tube for fixing the drainage tube.

2. The reboiler with a multi-layer heating structure according to claim 1, characterized in that, It also includes a temperature sensor, which is disposed on the cavity wall of each heating cavity and is electrically connected to the PLC.

3. A reboiler with a multi-layer heating structure according to claim 1, characterized in that, There are two layered partitions, which divide the shell into three layers.

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