Recycling and cooling device for rectifying tower

Abstract

According to the recovery cooling device for the rectifying tower, a feeding valve is opened, a rectifying product penetrates through a shell and an inner cabin through a feeding pipe and flows into a cooling cabin, a water inlet pipe is opened, cooling water flows into the shell through the water inlet pipe, three water inlet grooves arranged outside the inner cabin are filled with the cooling water, and the cooling water cools the rectifying product in the cooling cabin; the water outlet valve is opened to discharge the cooling water with the temperature increased in the shell through the water outlet pipe, then new cooling water flows into the shell through the water inlet pipe, after cooling is completed, the discharging valve is opened, and the rectification product flows into the material receiving box, so that cooling recovery can be completed. The cooling water used in the device can be replaced, the cooling water can be replaced by new cooling water with lower temperature after the temperature of the cooling water is increased, and meanwhile, the contact area between the cooling water and a rectification product is increased, so that the cooling efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of recovery cooling technology for distillation columns, and in particular to a recovery cooling device for distillation columns. Background Technology

[0002] A distillation column is a tower-type vapor-liquid contact device used for distillation. It utilizes the different volatility of components in a chemical mixture to achieve gas-liquid phase separation. Specifically, it separates components by leveraging the difference in vapor pressure at the same temperature, causing lighter components in the liquid phase to transfer to the gas phase, and heavier components in the gas phase to transfer to the liquid phase. Distillation columns are also widely used mass and heat transfer devices in petrochemical production. During operation, the distillation products need to be cooled and recovered. For example, Chinese utility model patent CN217988393U describes a recovery cooling device for a distillation column. This device uses cooling water from a cooling water tank to spray and cool the distillation column body, lowering its temperature. Furthermore, a cooling fan on one side of the cooling water tank further reduces the temperature within the tank, resulting in even better cooling.

[0003] Some problems still exist in the use of this device. The water in the cooling water tank is not renewed during use. Only the cooling fan is used to cool the water tank. However, water has a high specific heat capacity, so the efficiency of using the fan to cool the water is low. It is difficult to reduce the water temperature in the tank to the required temperature, which affects the cooling effect of the device. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a recovery and cooling device for a distillation column, characterized by comprising an outer shell structure, an inner shell structure, and a material receiving structure, wherein the inner shell structure is disposed inside the outer shell structure, and the material receiving structure is disposed outside the outer shell structure.

[0005] The external shell structure consists of an outer shell, an inlet pipe, an inlet valve, an outlet pipe, and an outlet valve. An inlet pipe with an inlet valve is installed on the upper side of one side of the outer shell, and an outlet pipe with an outlet valve is installed on the lower side of one side of the outer shell.

[0006] The receiving structure consists of an inlet pipe, an inlet valve, an outlet pipe, an outlet valve, and a receiving box. The inlet pipe is installed through an opening on the top of the outer casing, and an inlet valve is installed on the inlet pipe. An outlet pipe is installed through an opening on one side of the outer casing, and an outlet valve is installed on the outlet pipe. One end of the outlet pipe is connected to the receiving box.

[0007] The internal shell structure consists of an inner chamber, a feed inlet, a discharge outlet, a water inlet trough A, a water inlet trough B, a water inlet trough C, and a cooling chamber. The inner chamber is installed inside the outer shell. A feed inlet is opened at the top of the inner chamber, through which a feed pipe passes. A discharge outlet is opened at the bottom of the inner chamber, through which a discharge pipe passes. A water inlet trough A is set on one side of the inner chamber, and a water inlet trough B is set below it. A water inlet trough C is set on the other side of the inner chamber. The interior of the inner chamber is the cooling chamber.

[0008] The beneficial effects of this utility model are:

[0009] This invention relates to a recovery and cooling device for a distillation column. When the feed valve is opened, the distillation product flows through the feed pipe into the cooling chamber via the outer shell and inner chamber. When the water inlet pipe is opened, cooling water flows into the inner shell and fills three water inlet tanks located outside the inner chamber. The cooling water cools the distillation product inside the cooling chamber. Opening the outlet valve releases the cooled water, which has now reached a higher temperature inside the outer shell, through the outlet pipe. New cooling water then flows into the inner shell through the inlet pipe. After cooling is complete, opening the discharge valve allows the distillation product to flow into a collection box, thus completing the cooling recovery process. The cooling water used in this device is replaceable; as the temperature of the cooling water increases, it can be replaced with new, lower-temperature cooling water. Simultaneously, the increased contact area between the cooling water and the distillation product results in higher cooling efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of a recovery cooling device for a distillation column according to the present invention;

[0011] Figure 2 This is a schematic diagram of the overall structure of a recovery cooling device for a distillation column according to the present invention;

[0012] Figure 3 This is a partial structural schematic diagram of a recovery cooling device for a distillation column according to the present invention;

[0013] Figure 4 This is a partial structural schematic diagram of a recovery cooling device for a distillation column according to the present invention;

[0014] Figure 5 This is a partial structural schematic diagram of a recovery cooling device for a distillation column according to the present invention;

[0015] Figure 6 This is a partial structural schematic diagram of a recovery cooling device for a distillation column according to the present invention;

[0016] As shown in the figure: 1. Feed pipe, 2. Feed valve, 3. Discharge pipe, 4. Discharge valve, 5. Receiving box, 6. Outer shell, 7. Water inlet pipe, 8. Water inlet valve, 9. Water outlet pipe, 10. Water outlet valve, 11. Inner chamber, 12. Feed port, 13. Discharge port, 14. Water inlet tank A, 15. Water inlet tank B, 16. Water inlet tank C, 17. Cooling chamber. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] Example 1

[0021] like Figure 1 , Figure 2As shown, a water inlet pipe 7 is installed on the upper side of one side of the outer shell 6, and a water inlet valve 8 is installed on the water inlet pipe 7. A water outlet pipe 9 is installed on the lower side of one side of the outer shell 6, and a water outlet valve 10 is installed on the water outlet pipe 9. A feed pipe 1 is installed through an opening at the top of the outer shell 6, and a feed valve 2 is installed on the feed pipe 1. A discharge pipe 3 is installed through an opening at one side of the outer shell 6, and a discharge valve 4 is installed on the discharge pipe 3. One end of the discharge pipe 3 is connected to a receiving box 5. An inner chamber 11 is installed inside the outer shell 6. A feed inlet 12 is opened at the top of the inner chamber 11, and the feed pipe 1 passes through the inside of the feed inlet 12. A discharge outlet 13 is opened at the bottom of the inner chamber 11, and the discharge pipe 3 passes through the inside of the discharge outlet 13. A water inlet trough A14 is set on one side of the inner chamber 11, and a water inlet trough B15 is set below the water inlet trough A14. A water inlet trough C16 is set on the other side of the inner chamber 11. The interior of the inner chamber 11 is a cooling chamber 17.

[0022] Example 2

[0023] When using this utility model, open the feed valve 2, and the distillation product flows into the cooling chamber 17 through the feed pipe 1, the outer shell 6, and the inner chamber 11. Open the water inlet pipe 8, and the cooling water flows into the interior of the outer shell through the water inlet pipe 7. The cooling water fills the water inlet tank A14, water inlet tank B15, and water inlet tank C16. The cooling water cools the distillation product inside the cooling chamber 17. Open the water outlet valve 10 to release the cooling water that has been heated inside the outer shell through the water outlet pipe 9, and then let new cooling water flow into the interior of the outer shell through the water inlet pipe 7. After cooling is completed, open the discharge valve 4, and the distillation product flows into the collection box 5 to complete the cooling and recovery.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A recovery cooling device for a rectifying column, characterized by It is composed of an external shell structure, an internal shell structure and a material collecting structure, the internal shell structure is arranged inside the external shell structure, and the material collecting structure is arranged outside the external shell structure.

2. A reboiler for a distillation column as claimed in claim 1, characterized in that The external shell structure is composed of an outer shell, a water inlet pipe, a water inlet valve, a water outlet pipe and a water outlet valve, the water inlet pipe is installed on the upper side of the outer shell, the water inlet valve is installed on the water inlet pipe, the water outlet pipe is installed on the lower side of the outer shell, and the water outlet valve is installed on the water outlet pipe.

3. A reboiler for a distillation column as claimed in claim 2, characterized in that The material collecting structure is composed of a feeding pipe, a feeding valve, a discharging pipe, a discharging valve and a material collecting box, the feeding pipe is installed on the top of the outer shell through a hole, the feeding valve is installed on the feeding pipe, the discharging pipe is installed on the side of the outer shell through a hole, the discharging valve is installed on the discharging pipe, and the discharging pipe is connected with the material collecting box at one end.

4. The recovery cooling device for a rectifying column according to claim 3, characterized by The internal shell structure is composed of an inner cabin, a feeding port, a discharging port, a water inlet groove A, a water inlet groove B, a water inlet groove C and a cooling cabin, the inner cabin is arranged inside the outer shell, the feeding port is arranged on the top of the inner cabin, the feeding pipe passes through the feeding port, the discharging port is arranged on the bottom of the inner cabin, the discharging pipe passes through the discharging port, the water inlet groove A is arranged on one side of the inner cabin, the water inlet groove B is arranged below the water inlet groove A, the water inlet groove C is arranged on the other side of the inner cabin, and the inner cabin is a cooling cabin.

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