A device for separating and dehydrating raw carbon four feed of MTBE device

Abstract

The utility model relates to the field of chemical industry, and in particular to a device for separating and dehydrating carbon four feed of a MTBE device. The utility model mainly solves the problem that a large amount of by-products are generated in the production process of the existing MTBE device, which affects the product quality. The device for separating and dehydrating carbon four feed of a MTBE device comprises a shell (1), wherein a lower plate (4) and an upper plate (6) are provided inside the shell (1), and a plurality of cyclone separation filter tubes (5) arranged in a vertical direction are provided between the lower plate (4) and the upper plate (6). A carbon four inlet (10) is provided on the side wall of the shell (1) of the lower plate (4) and the upper plate (6), a carbon four outlet (8) is provided on the top of the shell (1), and an oily wastewater outlet (11) is provided on the bottom. The device for separating and dehydrating carbon four feed of a MTBE device can remove saturated water in the raw material, ensure the normal operation of the carbon four separation device, and improve the product quality.

Description

Technical Field

[0001] The utility model relates to the field of chemical industry, in particular to a device for separating and dehydrating carbon four feed of a MTBE device. Background Art

[0002] The raw materials of the MTBE (methyl tert-butyl ether) unit are composed of the C4 components produced after the separation of propylene and propylene in the gas separation unit. In the daily production process, the C4 components produced by the upstream unit contain a certain amount of saturated water. Once the saturated water enters the MTBE unit, it will produce a large amount of by-products through etherification reaction, affecting the product quality. In addition, it is easy to cause freezing of the air-cooled tube bundle when the temperature is low in winter. Summary of the invention

[0003] In order to overcome the deficiency that a large amount of by-products are generated in the existing MTBE device during the production process and thus the product quality is affected, the utility model provides a device for separating and dehydrating the carbon four feed of the MTBE device raw material. The device for separating and dehydrating the carbon four feed of the MTBE device raw material can remove the saturated water in the raw material, ensure the normal operation of the carbon four separation device, and improve the product quality.

[0004] The technical solution of the utility model is: a device for separating and dehydrating raw carbon four feed of MTBE device, comprising a shell, wherein a lower flower plate and an upper flower plate are arranged inside the shell, a plurality of vertically arranged cyclone separation filter tubes are arranged between the lower flower plate and the upper flower plate, a carbon four inlet is opened on the shell side wall of the lower flower plate and the upper flower plate, a carbon four outlet is opened on the top of the shell, and an oily wastewater outlet is opened at the bottom.

[0005] Furthermore, the cyclone separation filter tube includes a tube body, which is a conical tube with an upper diameter larger than a lower diameter, and the upper end of the tube body is closed, and the side wall of the upper end of the tube body is connected to the liquid inlet pipe in a tangential direction.

[0006] Furthermore, the upper end of the tube body is connected to a fixing tube, the fixing tube is located in a hole on the upper flower plate, and the lower end of the tube body is located in a hole on the lower flower plate.

[0007] Furthermore, a stepped hole is provided at the connection between the lower flower plate and the cyclone separation filter tube, the lower end of the tube body passes through the stepped hole, a clamping nut is provided between the outside of the tube body and the lower flower plate, and a sealing member is provided in the stepped hole at the bottom of the clamping nut.

[0008] Furthermore, a stepped hole is provided at the connection between the upper flower plate and the cyclone separation filter tube, the fixed pipe passes through the stepped hole, an upper clamping nut is provided between the outside of the fixed pipe and the upper flower plate, and an upper sealing member is provided in the stepped hole at the bottom of the upper clamping nut.

[0009] Furthermore, the shell is connected to an on-site liquid level meter and a remote liquid level meter.

[0010] The utility model has the following beneficial effects: due to the adoption of the above scheme, a plurality of cyclone separation filter tubes are arranged in the shell, and after the raw material enters the shell from the C4 inlet, it enters the cyclone separation filter tube and rotates at high speed to form a cyclone, and the liquefied gas with low density is discharged from the upper end, and the impurity-containing liquid with large sealing is discharged from the bottom, thereby realizing the separation of impurities, reducing by-products and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 is a schematic diagram of a cyclone separation filter tube;

[0013] Figure 3 along Figure 2 Middle B view;

[0014] Figure 4 yes Figure 1 Enlarged view of point A in the middle.

[0015] In the figure, 1-shell, 2-local level gauge, 3-pressure gauge, 4-lower flower plate, 5-cyclone separation filter tube, 6-upper flower plate, 7-vent, 8-C4 outlet, 9-remote level gauge, 10-C4 inlet, 11-oil-containing sewage outlet, 12-tightening nut, 13-seal, 51-liquid inlet pipe, 52-tube body, 53-fixed pipe. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by "up", "down", "left", "right", "inside", "outside", "top" and "bottom" are all based on the directions or positional relationships shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the referred parts must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0018] Depend on Figures 1 to 4As shown, a device for separating and dehydrating C4 feed of MTBE device raw material includes a shell 1, wherein a lower plate 4 and an upper plate 6 are arranged inside the shell 1, wherein the lower plate 4 is located at the upper part of the shell, and the upper plate 6 is located at the middle and upper part, and a plurality of cyclone separation filter tubes 5 arranged vertically are arranged between the lower plate 4 and the upper plate 6, and the number of cyclone separation filter tubes 5 can be determined according to the processing capacity. A C4 inlet 10 is opened on the side wall of the shell 1 of the lower plate 4 and the upper plate 6, a C4 outlet 8 is opened on the top of the shell 1, and an oily wastewater outlet 11 is opened at the bottom.

[0019] The cyclone separation filter tube 5 includes a tube body 52, which is a conical tube with an upper diameter larger than a lower diameter, and the upper end of the tube body 52 is closed, and the tangential direction of the side wall of the upper end of the tube body 52 is connected to the liquid inlet pipe 51. The tube body 52 is opened at the corresponding position of the liquid inlet pipe 51, and the liquid inlet pipe 51 is a short tube, one end of which is fixed on the tube body 52 and the other end is located in the middle of the extended product. Two liquid inlet pipes 51 can be fixed on each cyclone separation filter tube 5, and the two liquid inlet pipes 51 are along the tangential direction of the tube body, and the two liquid inlet pipes 51 are opposite to each other, so that the medium can form a cyclone when it enters the tube body 52 from the liquid inlet pipe 51.

[0020] The sealed upper end of the tube body 52 is connected to a fixed tube 53, and the diameter of the fixed tube 53 is smaller than the upper diameter of the tube body 52. ​​The fixed tube 53 is located in the hole on the upper plate 6, and the lower end of the tube body 52 is located in the hole on the lower plate 4. The hole where the lower plate 4 is connected to the cyclone separation filter tube 5 is a stepped hole, and the lower end of the tube body 52 passes through the stepped hole. A clamping nut 12 is provided between the outside of the tube body 52 and the lower plate 4, and a seal 13 is provided in the stepped hole at the bottom of the clamping nut 12. Similarly, the hole where the upper plate 6 is connected to the cyclone separation filter tube 5 is a stepped hole, and the fixed tube 53 passes through the stepped hole. An upper clamping nut is provided between the outside of the fixed tube 53 and the upper plate 6, and an upper seal is provided in the stepped hole at the bottom of the upper clamping nut. In order to facilitate the installation of the cyclone separation filter tube 5, the housing 1 can be divided into two bodies at the upper plate 6, and the upper plate 6 is located between the upper and lower halves, and the upper and lower halves are connected by bolts.

[0021] The top of the housing 1 is provided with a vent 7, and the housing 1 is also connected with a pressure gauge 3, a local level gauge 2 and a remote level gauge 9, wherein there are two pressure gauges 3, one located between the upper and lower flower plates, and the other located below the lower flower plate 4, respectively measuring the pressure in different areas of the housing 1. The remote level gauge 9 can transmit data remotely for convenient real-time monitoring.

[0022] After the raw material enters the shell from the C4 inlet 10, it enters the cyclone separation filter tube 5 through the liquid inlet pipe 51. The liquid entering the tube body 52 rotates at high speed to form a cyclone. The liquefied gas with low density is discharged from the upper end of the fixed tube 53 to the upper part of the shell 1, and finally discharged from the upper C4 outlet 8; the impurity-containing liquid with large seal is discharged from the bottom of the tube body 52 to the bottom of the shell 1, and finally discharged from the oily wastewater outlet 11 at the bottom, thereby realizing the separation of impurities and improving product quality.

[0023] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A device for separating and dehydrating carbon four feed of a MTBE device, comprising a housing (1), characterized in that: The shell (1) is provided with a lower plate (4) and an upper plate (6) inside, a plurality of vertically arranged cyclone separation filter tubes (5) are provided between the lower plate (4) and the upper plate (6), a carbon four inlet (10) is provided on the side walls of the shell (1) of the lower plate (4) and the upper plate (6), a carbon four outlet (8) is provided on the top of the shell (1), and an oily wastewater outlet (11) is provided on the bottom.

2. The device for separating and dehydrating the raw material C4 feed of the MTBE device according to claim 1, characterized in that: The cyclone separation filter tube (5) comprises a tube body (52), the tube body (52) being a conical tube with an upper diameter greater than a lower diameter, the upper end of the tube body (52) being closed, and the side wall of the upper end of the tube body (52) being connected to the liquid inlet pipe (51) in a tangential direction.

3. The device for separating and dehydrating the raw material C4 feed of the MTBE device according to claim 2, characterized in that: The upper end of the tube body (52) is connected to a fixing tube (53), the fixing tube (53) is located in a hole on the upper flower plate (6), and the lower end of the tube body (52) is located in a hole on the lower flower plate (4).

4. The device for separating and dehydrating the raw material C4 feed of the MTBE device according to claim 3, characterized in that: A stepped hole is formed at the connection between the lower flower plate (4) and the cyclone separation filter tube (5), the lower end of the tube body (52) passes through the stepped hole, a clamping nut (12) is provided between the outside of the tube body (52) and the lower flower plate (4), and a sealing member (13) is provided in the stepped hole at the bottom of the clamping nut (12).

5. The device for separating and dehydrating the raw material C4 feed of the MTBE device according to claim 4, characterized in that: A stepped hole is formed at the connection between the upper flower plate (6) and the cyclone separation filter tube (5), the fixed tube (53) passes through the stepped hole, an upper clamping nut is provided between the outside of the fixed tube (53) and the upper flower plate, and an upper sealing member is provided in the stepped hole at the bottom of the upper clamping nut.

6. The device for separating and dehydrating the raw material C4 feed of the MTBE device according to claim 5, characterized in that: The housing (1) is connected to a local liquid level meter (2) and a remote liquid level meter (9).

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