Device for improving air cooling load of C4 reaction unit

Abstract

The utility model relates to a device for improving the air cooling load of a C4 reaction unit. According to the technical scheme, a top discharge port of a de-heavy tower is connected to an inlet of an air cooler of a reaction unit, the air cooler of the reaction unit is provided with more than one group of cooling cavities, and a group of air cooler evaporation films are mounted in each group of cooling cavities; an evaporation cold pipeline pump is mounted below each group of air cooling evaporation films, a bottom outlet of the reaction unit air cooler is connected to a shell pass top inlet of the de-heavy tower top condenser through a pipeline, and a shell pass outlet of the de-heavy tower top condenser is connected to a top inlet of the de-heavy tower top return tank through a pipeline. The utility model has the beneficial effects that the air below the air cooler passes through the air cooling evaporation film and then flows to the subsequent condenser; and the cooled air can better take away the heat of the material at the top of the heavy component removal tower, so that the condensation load is improved, the safe and stable operation of the device is ensured, the subsequent quantity reduction treatment of an etherification unit is avoided, and the economic benefit of the device is further prevented from being reduced.

Description

Technical Field

[0001] The utility model relates to a C4 raw material refining device, in particular to a device for improving the air cooling load of a C4 reaction unit. Background Art

[0002] As an important petroleum resource, C4 liquefied gas plays an increasingly important role in the field of chemical production. The comprehensive utilization of C4 is also becoming more and more extensive. Among them, the synthesis of methyl tert-butyl ether by reacting isobutylene in C4 hydrocarbons with methanol is currently the main way to utilize C4 in China. The main factor affecting the production of methyl tert-butyl ether in C4 equipment is the processing capacity of the etherification unit. However, the current problem is that when the ambient temperature is high in the summer, the etherification unit needs to reduce the processing capacity, which leads to a decrease in the production of methyl tert-butyl ether in the equipment and a decrease in the economic benefits of the equipment. Among them, the reduction in the processing capacity of the etherification unit is caused by insufficient cooling load of the degassing tower of the reaction unit. In order to ensure the safe and stable operation of the equipment, it is necessary to reduce the processing capacity to reduce the load of the degassing tower of the reaction unit when the temperature is high in the summer to ensure safe and stable operation of the equipment. Utility Model Content

[0003] The purpose of the present invention is to address the above-mentioned defects in the prior art and to provide a device for improving the air-cooling cooling load of the C4 reaction unit, which not only ensures the safe and stable operation of the device, but also improves the cooling load of the air cooling of the reaction unit, thereby avoiding the reduction in the amount of the etherification unit and avoiding the decline in the economic benefits of the device when the temperature is high in summer.

[0004] The utility model mentions a device for improving the air cooling load of a carbon four reaction unit, and its technical solution is: comprising a reaction unit air cooler (A-6301), a deweighting tower (C-6301), a deweighting tower top condenser (E-6307), a deweighting tower top reflux tank (D-6302), a deweighting tower top reflux pump (P-6301), and a reaction product cooler (E-6305), wherein the top discharge port of the deweighting tower (C-6301) is connected to the inlet of the reaction unit air cooler (A-6301), the reaction unit air cooler (A-6301) is provided with more than one group of cooling cavities, and each group of cooling cavities is equipped with a group of air cooler evaporation membranes; each group of air cooling evaporation membranes An evaporative cooling pipeline pump is installed below, the bottom outlet of the reaction unit air cooler (A-6301) is connected to the top shell inlet of the deweighting tower top condenser (E-6307) through a pipeline, and the shell outlet of the deweighting tower top condenser (E-6307) is connected to the top inlet of the deweighting tower top reflux tank (D-6302) through a pipeline; the bottom of the deweighting tower top reflux tank (D-6302) is connected to the deweighting tower top reflux pump (P-6301) through a pipeline, and the outlet of the deweighting tower top reflux pump (P-6301) returns to the top reflux port of the deweighting tower (C-6301) all the way, and the other way is connected to the reaction product cooler (E-6305) through a pipeline for cooling.

[0005] Preferably, the above-mentioned reaction unit air cooler (A-6301) is provided with four groups of cooling chambers, which are respectively installed with the first air cooler evaporation membrane (A-6301-ZFM1), the second air cooler evaporation membrane (A-6301-ZFM2), the third air cooler evaporation membrane (A-6301-ZFM3), and the fourth air cooler evaporation membrane (A-6301-ZFM4).

[0006] Preferably, the first evaporative cooling pipe pump (A-6301-P1) is installed under the first air cooler evaporative membrane (A-6301-ZFM1), the second evaporative cooling pipe pump (A-6301-P2) is installed under the second air cooler evaporative membrane (A-6301-ZFM2), the third evaporative cooling pipe pump (A-6301-P3) is installed under the third air cooler evaporative membrane (A-6301-ZFM3), and the fourth evaporative cooling pipe pump (A-6301-P4) is installed under the fourth air cooler evaporative membrane (A-6301-ZFM4).

[0007] Preferably, the inlet of the above-mentioned first evaporative cooling pipe pump (A-6301-P1) is located below the first air cooler evaporative membrane (A-6301-ZFM1), and the outlet of the first evaporative cooling pipe pump (A-6301-P1) is routed through a pipeline to the top of the first air cooler evaporative membrane (A-6301-ZFM1).

[0008] Preferably, the inlet of the above-mentioned second evaporative cooling pipe pump (A-6301-P2) is located below the second air cooler evaporative membrane (A-6301-ZFM2), and the outlet of the second evaporative cooling pipe pump (A-6301-P2) is routed through a pipeline to the top of the second air cooler evaporative membrane (A-6301-ZFM2).

[0009] Preferably, the inlet of the above-mentioned third evaporative cooling pipe pump (A-6301-P3) is located below the third air cooler evaporative membrane (A-6301-ZFM3), and the outlet of the third evaporative cooling pipe pump (A-6301-P3) is routed through a pipeline to the top of the third air cooler evaporative membrane (A-6301-ZFM3).

[0010] Preferably, the inlet of the above-mentioned fourth evaporative cooling pipe pump (A-6301-P4) is located below the fourth air cooler evaporative membrane (A-6301-ZFM4), and the outlet of the fourth evaporative cooling pipe pump (A-6301-P4) is routed through a pipeline to the top of the fourth air cooler evaporative membrane (A-6301-ZFM4).

[0011] The beneficial effects of the utility model are as follows: in order to improve the cooling load of the reaction unit air cooler, the reaction unit air cooler is equipped with more than one group of cooling chambers, an air cooler evaporative membrane is installed in each group of cooling chambers, and an evaporative cooling pipeline pump is provided below the air cooling evaporative membrane as an evaporative membrane water circulation pipeline pump, so that the air below the reaction unit air cooler passes through the air cooling evaporative membrane and then flows to the subsequent condenser; when the air flows through the air cooling evaporative membrane, the air and the membrane rub against each other, the water evaporates and absorbs heat, and the air is cooled; the cooled air can better take away the heat of the material on the top of the deweighting tower, which not only improves the condensation load, but also ensures the safe and stable operation of the device, avoids the subsequent etherification unit reduction treatment, and thus avoids the decline in the economic benefits of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] In the figure above: reaction unit air cooler (A-6301), deweighting tower (C-6301), deweighting tower top condenser (E-6307), deweighting tower top reflux tank (D-6302), deweighting tower top reflux pump (P-6301), reaction product cooler (E-6305), first air cooler evaporative membrane (A-6301-ZFM1), second air cooler evaporative membrane (A-6301-ZFM2), third air cooler evaporative membrane (A-6301-ZFM3), fourth air cooler evaporative membrane (A-6301-ZFM4), first evaporative cooling pipeline pump (A-6301-P1), second evaporative cooling pipeline pump (A-6301-P2), third evaporative cooling pipeline pump (A-6301-P3), fourth evaporative cooling pipeline pump (A-6301-P4). DETAILED DESCRIPTION

[0014] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0015] Example 1, with reference to Figure 1The utility model mentions a device for improving the air cooling cooling load of a carbon four reaction unit, comprising a reaction unit air cooler (A-6301), a deweighting tower (C-6301), a deweighting tower top condenser (E-6307), a deweighting tower top reflux tank (D-6302), a deweighting tower top reflux pump (P-6301), and a reaction product cooler (E-6305). The top discharge port of the deweighting tower (C-6301) is connected to the inlet of the reaction unit air cooler (A-6301). The reaction unit air cooler (A-6301) is provided with more than one group of cooling chambers, and each group of cooling chambers is equipped with a group of air cooler evaporation membranes; each group of air cooling evaporation membranes is equipped with a An evaporative cooling pipeline pump, the bottom outlet of the reaction unit air cooler (A-6301) is connected to the top shell inlet of the deweighting tower top condenser (E-6307) through a pipeline, and the shell outlet of the deweighting tower top condenser (E-6307) is connected to the top inlet of the deweighting tower top reflux tank (D-6302) through a pipeline; the bottom of the deweighting tower top reflux tank (D-6302) is connected to the deweighting tower top reflux pump (P-6301) through a pipeline, and the outlet of the deweighting tower top reflux pump (P-6301) returns to the top reflux port of the deweighting tower (C-6301) all the way, and is connected to the reaction product cooler (E-6305) through a pipeline for cooling.

[0016] Among them, the above-mentioned reaction unit air cooler (A-6301) is equipped with four groups of cooling chambers, which are respectively installed with the first air cooler evaporation membrane (A-6301-ZFM1), the second air cooler evaporation membrane (A-6301-ZFM2), the third air cooler evaporation membrane (A-6301-ZFM3), and the fourth air cooler evaporation membrane (A-6301-ZFM4).

[0017] The first evaporative cooling pipeline pump (A-6301-P1) is installed under the evaporative membrane of the first air cooler (A-6301-ZFM1), the second evaporative cooling pipeline pump (A-6301-P2) is installed under the evaporative membrane of the second air cooler (A-6301-ZFM2), the third evaporative cooling pipeline pump (A-6301-P3) is installed under the evaporative membrane of the third air cooler (A-6301-ZFM3), and the fourth evaporative cooling pipeline pump (A-6301-P4) is installed under the evaporative membrane of the fourth air cooler (A-6301-ZFM4).

[0018] The inlet of the above-mentioned first evaporative cooling pipe pump (A-6301-P1) is located below the first air cooler evaporative membrane (A-6301-ZFM1), and the outlet of the first evaporative cooling pipe pump (A-6301-P1) is routed through a pipeline to the top of the first air cooler evaporative membrane (A-6301-ZFM1).

[0019] The inlet of the above-mentioned second evaporative cooling pipe pump (A-6301-P2) is located below the second air cooler evaporative membrane (A-6301-ZFM2), and the outlet of the second evaporative cooling pipe pump (A-6301-P2) is routed through a pipeline to the top of the second air cooler evaporative membrane (A-6301-ZFM2).

[0020] The inlet of the above-mentioned third evaporative cooling pipe pump (A-6301-P3) is located below the third air cooler evaporative membrane (A-6301-ZFM3), and the outlet of the third evaporative cooling pipe pump (A-6301-P3) is routed through a pipeline to the top of the third air cooler evaporative membrane (A-6301-ZFM3).

[0021] The inlet of the above-mentioned fourth evaporative cooling pipe pump (A-6301-P4) is located below the fourth air cooler evaporative membrane (A-6301-ZFM4), and the outlet of the fourth evaporative cooling pipe pump (A-6301-P4) is routed through a pipeline to the top of the fourth air cooler evaporative membrane (A-6301-ZFM4).

[0022] The method of using the utility model includes the following steps:

[0023] The gaseous material extracted from the de-weighting tower (C-6301) is cooled and condensed by the reaction unit air cooler (A-6301) and then sent to the top condenser of the de-weighting tower (E-6307) for further cooling and condensation. The reaction product material cooled by the top condenser of the de-weighting tower (E-6307) enters the top reflux tank of the de-weighting tower (D-6302). The liquid phase material of the reaction product in the top reflux tank of the de-weighting tower (D-6302) is pressurized by the top reflux pump of the de-weighting tower (P-6301). A part of the material is returned to the tower as reflux of the de-weighting tower (C-6301), and the other part of the material is cooled by the reaction product cooler (E-6305) and sent to the etherification unit. Among them, since 4 groups of cooling chambers are installed under the reaction unit air cooler (A-6301), each cooling chamber is installed with an air cooler evaporative membrane (A-6301-ZFM1-4), and each group of air cooling evaporative membranes is equipped with an evaporative cooling pipeline pump (A-6301-P1-4) as an evaporative membrane water circulation pipeline pump, so that the air under the reaction unit air cooler passes through the evaporative membrane and then flows to the subsequent condenser. When the air flows through the air cooler evaporative membrane, the air and the membrane rub against each other, the water evaporates and absorbs heat, and the air is cooled. The cooled air can better take away the heat of the material at the top of the deweighting tower, thereby achieving the purpose of increasing the condensation load.

[0024] Example 2, the utility model mentions a device for improving the air cooling cooling load of a carbon four reaction unit, comprising a reaction unit air cooler (A-6301), a deweighting tower (C-6301), a deweighting tower top condenser (E-6307), a deweighting tower top reflux tank (D-6302), a deweighting tower top reflux pump (P-6301), and a reaction product cooler (E-6305). The top discharge port of the deweighting tower (C-6301) is connected to the inlet of the reaction unit air cooler (A-6301). The reaction unit air cooler (A-6301) is provided with more than one group of cooling chambers, and each group of cooling chambers is provided with a group of air cooler evaporation membranes; under each group of air cooling evaporation membranes, a cooling chamber is provided. An evaporative cooling pipeline pump is installed. The bottom outlet of the reaction unit air cooler (A-6301) is connected to the top shell inlet of the deweighting tower top condenser (E-6307) through a pipeline, and the shell outlet of the deweighting tower top condenser (E-6307) is connected to the top inlet of the deweighting tower top reflux tank (D-6302) through a pipeline; the bottom of the deweighting tower top reflux tank (D-6302) is connected to the deweighting tower top reflux pump (P-6301) through a pipeline, and the outlet of the deweighting tower top reflux pump (P-6301) returns to the top reflux port of the deweighting tower (C-6301) all the way, and the other way is connected to the reaction product cooler (E-6305) through a pipeline for cooling.

[0025] The difference from Example 1 is:

[0026] The reaction unit air cooler (A-6301) is provided with three or six cooling chambers according to actual conditions, and air cooler evaporation membranes are installed in each of them, which can also basically achieve the purpose of the present invention.

[0027] The above description is merely a preferred embodiment of the present invention. Anyone skilled in the art may utilize the above-described technical solutions to modify the present invention or create equivalent technical solutions. Therefore, any simple modifications or equivalent transformations based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A device for increasing the air cooling load of a C4 reaction unit, characterized by: It includes a reaction unit air cooler (A-6301), a deweighting tower (C-6301), a deweighting tower top condenser (E-6307), a deweighting tower top reflux tank (D-6302), a deweighting tower top reflux pump (P-6301), and a reaction product cooler (E-6305). The top discharge port of the deweighting tower (C-6301) is connected to the inlet of the reaction unit air cooler (A-6301). The reaction unit air cooler (A-6301) is provided with more than one group of cooling chambers, and each group of cooling chambers is equipped with a group of air cooler evaporation membranes; an evaporation cooling pipeline pump is installed under each group of air cooling evaporation membranes. The bottom outlet of the air cooler (A-6301) is connected to the top shell inlet of the deweighting tower top condenser (E-6307) through a pipeline, and the shell outlet of the deweighting tower top condenser (E-6307) is connected to the top inlet of the deweighting tower top reflux tank (D-6302) through a pipeline; the bottom of the deweighting tower top reflux tank (D-6302) is connected to the deweighting tower top reflux pump (P-6301) through a pipeline, and the outlet of the deweighting tower top reflux pump (P-6301) returns to the top reflux port of the deweighting tower (C-6301) all the way, and the other way is connected to the reaction product cooler (E-6305) through a pipeline for cooling.

2. The device for increasing the air cooling load of a C4 reaction unit according to claim 1, characterized in that: The reaction unit air cooler (A-6301) is provided with four groups of cooling chambers, which are respectively installed with the first air cooler evaporation membrane (A-6301-ZFM1), the second air cooler evaporation membrane (A-6301-ZFM2), the third air cooler evaporation membrane (A-6301-ZFM3), and the fourth air cooler evaporation membrane (A-6301-ZFM4).

3. The device for increasing the air cooling load of a C4 reaction unit according to claim 2 is characterized in that: The first evaporative cooling pipe pump (A-6301-P1) is installed under the evaporative membrane of the first air cooler (A-6301-ZFM1), the second evaporative cooling pipe pump (A-6301-P2) is installed under the evaporative membrane of the second air cooler (A-6301-ZFM2), the third evaporative cooling pipe pump (A-6301-P3) is installed under the evaporative membrane of the third air cooler (A-6301-ZFM3), and the fourth evaporative cooling pipe pump (A-6301-P4) is installed under the evaporative membrane of the fourth air cooler (A-6301-ZFM4).

4. The device for increasing the air cooling load of a C4 reaction unit according to claim 3, characterized in that: The inlet of the first evaporative cooling pipe pump (A-6301-P1) is located below the first air cooler evaporative membrane (A-6301-ZFM1), and the outlet of the first evaporative cooling pipe pump (A-6301-P1) is routed above the first air cooler evaporative membrane (A-6301-ZFM1) through a pipeline.

5. The device for increasing the air cooling load of a C4 reaction unit according to claim 3, characterized in that: The inlet of the second evaporative cooling pipe pump (A-6301-P2) is located below the second air cooler evaporation membrane (A-6301-ZFM2), and the outlet of the second evaporative cooling pipe pump (A-6301-P2) is routed above the second air cooler evaporation membrane (A-6301-ZFM2) through a pipeline.

6. The device for increasing the air cooling load of a C4 reaction unit according to claim 3, characterized in that: The inlet of the third evaporative cooling pipeline pump (A-6301-P3) is located below the third air cooler evaporation membrane (A-6301-ZFM3), and the outlet of the third evaporative cooling pipeline pump (A-6301-P3) is routed above the third air cooler evaporation membrane (A-6301-ZFM3) through a pipeline.

7. The device for increasing the air cooling load of a C4 reaction unit according to claim 3, characterized in that: The inlet of the fourth evaporative cooling pipe pump (A-6301-P4) is located below the fourth air cooler evaporation membrane (A-6301-ZFM4), and the outlet of the fourth evaporative cooling pipe pump (A-6301-P4) is routed above the fourth air cooler evaporation membrane (A-6301-ZFM4) through a pipeline.

Images