Ethylene oxide stripping tower with circulating water shunting device

Abstract

The ethylene oxide stripping tower comprises a stripping tower body and a tower bottom pump located in the stripping tower body, one end of the tower bottom pump is communicated with a main pipeline, the two corresponding sides of the main pipeline are communicated with a first pipeline and a second pipeline respectively, a rotating shaft is rotationally installed in the main pipeline, and the rotating shaft is provided with a water inlet and a water outlet. The two corresponding sides of the rotating shaft are each provided with a first baffle and a second baffle, the upper end of the rotating shaft is connected with at least two bolts in a threaded and screwed mode, and the bolts are used for fastening the first baffles and the second baffles to the rotating shaft. When the bolts are both connected with the first baffle and the second baffle, the rotating shaft is rotated so that water can flow into the first pipeline and the second pipeline, the annular groove is formed in the rotating shaft, and the rubber pad is fixedly installed on the surface of the annular groove, so that water in the main pipeline can flow to the end which is not shielded when one side of the pipeline is shielded.

Description

Technical Field

[0001] The utility model relates to the technical field of ethylene oxide stripping towers, in particular to an ethylene oxide stripping tower with a circulating water splitter. Background Art

[0002] Stripping is a unit operation used to recover the absorbed solute and separate the absorbent from the solute to obtain regeneration. At the same time, in some cases, stripping is also used to remove light components in the liquid. For example, in the oil refining industry, steam is often used as a stripping agent to remove light components from oil varieties. Therefore, stripping can be used in conjunction with absorption or alone. The stripping tower can be in the form of a plate tower or a packed tower.

[0003] In the existing ethylene oxide stripping tower absorption water system, a small amount of EO0 will react with water to generate MEG, which will accumulate in the system after long-term circulation, thereby affecting the quality of the ethylene oxide product, resulting in reduced production efficiency and environmental pollution.

[0004] To this end, we propose an ethylene oxide stripping tower with a circulating water diversion device. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an ethylene oxide stripping tower with a circulating water diversion device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An ethylene oxide stripping tower with a circulating water splitter comprises a stripping tower and a tower bottom pump located inside the stripping tower, one end of the tower bottom pump is connected to a main pipeline, the two corresponding sides of the main pipeline are respectively connected to a first pipeline and a second pipeline, a rotating shaft is rotatably installed inside the main pipeline, a first baffle plate and a second baffle plate are arranged on the two corresponding sides of the rotating shaft, at least two bolts are threadedly screwed on the upper end of the rotating shaft, and the bolts are used to fasten the first baffle plate and the second baffle plate to the rotating shaft.

[0008] As a further solution of the utility model: the rotating shaft extends to the outside of the main pipeline, the bolt extends to the outside of the main pipeline, and a handle is fixedly installed on the upper surface of the rotating shaft.

[0009] As a further solution of the utility model: at least two device blocks are fixedly mounted on one side surface of the first baffle plate and the second baffle plate, and threaded holes are opened on one side surface of the device blocks.

[0010] As a further solution of the utility model: a connecting plate is rotatably mounted on the surface of one side of the rotating shaft, and one end of the connecting plate away from the rotating shaft is fixedly mounted to the inner wall of the main pipe.

[0011] As a further solution of the utility model: a revolving door is rotatably installed on the surface of one side of the main pipeline, and a mounting block is fixedly installed inside the main pipeline.

[0012] As a further solution of the utility model: a sliding groove is provided on the inner wall of the installation block, and a filtering device is slidably arranged on the inner side of the sliding groove.

[0013] As a further solution of the utility model: a device box is fixedly provided on the peripheral side of the filter device, and the filter device is slidably connected to the sliding groove through the device box.

[0014] Compared with the prior art, the utility model provides an ethylene oxide stripping tower with a circulating water diversion device, which has the following beneficial effects:

[0015] The utility model provides a tower bottom pump, so that a part of the lean circulating water in the tower bottom pump is respectively sent to the 500# unit and the 600# unit through the No. 1 pipeline and the No. 2 pipeline. A main pipeline is fixedly installed at one end of the tower bottom pump, and the main pipeline is connected with the tower bottom pump, so that the lean circulating water in the tower bottom pump first flows into the main pipeline. A rotating shaft is rotatably installed inside the main pipeline, and a sealing strip is arranged on the outer side of the rotating shaft. At the same time, a No. 1 baffle and a No. 2 baffle are arranged on both sides of the rotating shaft, and the No. 1 baffle and the No. 2 baffle are rotatably connected with the main pipeline. The staff rotates the rotating shaft so that the No. 1 baffle and the rotating shaft rotate simultaneously, so that the No. 1 pipeline can be filled with water, while the No. 2 pipeline is blocked by the No. 2 baffle and cannot be filled with water.

[0016] When the bolts are connected to the No. 1 baffle and the No. 2 baffle, the rotating shaft is rotated so that water can enter the No. 1 pipe and the No. 2 pipe. An annular groove is opened on the rotating shaft, and a rubber pad is fixedly installed on the surface of the annular groove. Therefore, when one side of the pipe is blocked, the water in the main pipe will flow to the unblocked end, thereby controlling the MEG concentration in the circulating water, reducing impurities in the ethylene oxide product, and improving product production efficiency. It has positive environmental protection significance and saves a certain amount of production cost.

[0017] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the connection structure of the bottom pump and pipeline of an ethylene oxide stripping tower with a circulating water diversion device proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a filtering device of an ethylene oxide stripping tower with a circulating water diversion device proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a flow splitting device of an ethylene oxide stripping tower with a circulating water splitting device proposed by the utility model;

[0021] Figure 4 The utility model proposes an ethylene oxide stripping tower with a circulating water diversion device. Figure 1 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 5 The utility model provides a schematic plan view of an ethylene oxide stripping tower with a circulating water diversion device.

[0023] In the figure: 1, tower bottom pump; 2, main pipeline; 3, pipeline No. 1; 4, pipeline No. 2; 5, mounting block; 6, sliding groove; 7, device box; 8, filter device; 9, rotating shaft; 11, baffle No. 1; 111, baffle No. 2; 12, mounting block; 13, threaded hole; 14, bolt; 15, connecting plate; 16, handle; 17, revolving door. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Example 1: An ethylene oxide stripping tower with a circulating water diversion device, such as Figure 1-Figure 5As shown, it includes a stripping tower 101 and a tower bottom pump 1 located inside the stripping tower 101. One end of the tower bottom pump 1 is connected to a main pipeline 2. The corresponding two sides of the main pipeline 2 are respectively connected to a No. 1 pipeline 3 and a No. 2 pipeline 4. A rotating shaft 9 is rotatably installed inside the main pipeline 2. The corresponding two sides of the rotating shaft 9 are both provided with a No. 1 baffle 11 and a No. 2 baffle 111. At least two bolts 14 are screwed together at the upper end of the rotating shaft 9. The bolts 14 are used to fasten the No. 1 baffle 11 and the No. 2 baffle 111 to the rotating shaft 9. By setting the tower bottom pump 1, a part of the lean circulating water in the tower bottom pump 1 is respectively sent to 50 through the No. 1 pipeline 3 and the No. 2 pipeline 4. 0# unit and 600# unit, by fixing a main pipeline 2 at one end of the tower bottom pump 1, and the main pipeline 2 is connected with the tower bottom pump 1, so that the lean circulating water in the tower bottom pump 1 first flows into the main pipeline 2, and a rotating shaft 9 is rotatably installed inside the main pipeline 2, and a sealing strip is arranged on the outer side of the rotating shaft 9, and at the same time, a No. 1 baffle 11 and a No. 2 baffle 111 are arranged on both sides of the rotating shaft 9, and the No. 1 baffle 11 and the No. 2 baffle 111 are rotatably connected with the main pipeline 2, when the staff rotates the bolt 14 on the side corresponding to the No. 1 baffle 11 or the No. 2 baffle 111, the bolt 14 is arranged on the surface of the No. 1 baffle 11 and the No. 2 baffle 111. The connecting device is threadedly screwed and connected, and the bolt 14 is threadedly screwed and connected with the rotating shaft 9, so that the No. 1 baffle 11 or the No. 2 baffle 111 is tightly connected with the rotating shaft 9. When the No. 1 baffle 11 is connected with the rotating shaft 9, the staff rotates the rotating shaft 9 so that the No. 1 baffle 11 and the rotating shaft 9 rotate at the same time, so that the No. 1 pipe 3 can be filled with water, while the No. 2 pipe 4 is blocked by the No. 2 baffle 111 and cannot be filled with water. When the No. 2 baffle 111 is connected with the rotating shaft 9, the staff rotates the rotating shaft 9 so that the No. 2 baffle 111 and the rotating shaft 9 rotate at the same time, so that the No. 2 pipe 4 can be filled with water, while the No. 1 pipe 3 is blocked by the No. 1 baffle 111 and the rotating shaft 9. No. 1 baffle 11 blocks water from entering. When the bolts 14 are connected to the No. 1 baffle 11 and the No. 2 baffle 111, the rotating shaft 9 is rotated so that water can enter the No. 1 pipeline 3 and the No. 2 pipeline 4. An annular groove is provided on the rotating shaft 9, and a rubber pad is fixedly installed on the surface of the annular groove. Therefore, when one side of the pipeline is blocked, the water in the main pipeline 2 will flow to the unblocked end. The No. 1 pipeline 3 is connected to the 500# unit, and the No. 2 pipeline 4 is connected to the 600# unit, so as to control the MEG concentration in the circulating water, reduce impurities in the ethylene oxide product, and improve the product production efficiency. It has positive environmental protection significance and saves a certain amount of production cost.

[0027] like Figure 1-Figure 3As shown, the rotating shaft 9 extends to the outside of the main pipeline 2, the bolt 14 extends to the outside of the main pipeline 2, a handle 16 is fixedly installed on the upper surface of the rotating shaft 9, and at least two device blocks 12 are fixedly installed on one side surface of the first baffle 11 and the second baffle 111, and a threaded hole 13 is opened on one side surface of the device block 12. By setting the handle 16, and the handle 16 and the rotating shaft 9 are fixedly installed, when the staff turns the handle 16, the rotating shaft 9 rotates, and by setting the bolt 14 to extend to the outside of the main pipeline 2, it is convenient for the staff to move the bolt 14 and the required shielding baffle into contact. The first baffle plate 11 and the second baffle plate 111 are connected so that the water in the main pipeline 2 can be easily diverted. At least two device blocks 12 are fixedly installed on one side surface of each of the first baffle plate 11 and the second baffle plate 111, and a threaded hole 13 is provided on one side surface of the device block 12. When the staff screws the bolt 14, the bolt 14 is threadedly engaged with the threaded hole 13 to connect the device block 12 with the rotating shaft 9, so that the first baffle plate 11 and the second baffle plate 111 are connected with the rotating shaft 9, and the device block 12 is always stuck in the annular groove provided on the rotating shaft 9, which is convenient for the connection between the bolt 14 and the device block 12.

[0028] Example 2: An ethylene oxide stripping tower with a circulating water diversion device, such as Figure 1-Figure 4 As shown, a connecting plate 15 is rotatably installed on the surface of one side of the rotating shaft 9, and one end of the connecting plate 15 away from the rotating shaft 9 is fixedly installed on the inner wall of the main pipe 2. A revolving door 17 is rotatably installed on the surface of one side of the main pipe 2, and a mounting block 5 is fixedly installed inside the main pipe 2. By setting the connecting plate 15, when the shielding baffle on one side rotates together with the rotating shaft 9, water will flow to the corresponding pipe, and the connecting plate 15 divides the space on one side of the rotating shaft 9 into two, so as to prevent water from flowing to the pipe on the side where the shielding baffle is not opened. By setting the revolving door 17 and providing sealing strips around the holes opened by the revolving door 17, when it is necessary to replace the filtering device set in the main pipe 2, the revolving door 17 can be opened for replacement, thereby avoiding the increase in production costs caused by replacing the pipe.

[0029] like Figure 1-Figure 2As shown, a sliding groove 6 is provided on the inner wall of the mounting block 5, and a filter device 8 is slidably arranged on the inner side of the sliding groove 6, and a device box 7 is fixedly arranged on the surrounding side of the filter device 8. The filter device 8 is slidably connected to the sliding groove 6 through the device box 7. By setting the sliding groove 6, and the device box 7 is slidably installed on the surface of one side of the sliding groove 6, and the filter device 8 is fixedly installed inside the device box 7, the filter device 8 can filter the substances passing through the main pipeline 2. When the filtering effect of the filter device 8 decreases, the revolving door 17 is opened, and the device box 7 is pulled, so that the device box 7 moves in the sliding groove 6 toward the revolving door 17, thereby disengaging from the sliding groove 6. The staff replaces the new device box 7, slides and installs the new device box 7 tightly in the sliding groove 6, and pushes it into the main pipeline 2, so that the filter device 8 in the new device box 7 can filter the substances passing through the main pipeline 2.

[0030] Working principle: By setting up the tower bottom pump 1, a part of the lean circulating water in the tower bottom pump 1 is sent to the 500# unit and the 600# unit through the No. 1 pipeline 3 and the No. 2 pipeline 4 respectively. By fixing a main pipeline 2 at one end of the tower bottom pump 1, and the main pipeline 2 is connected with the tower bottom pump 1, the lean circulating water in the tower bottom pump 1 first flows into the main pipeline 2. By rotating a rotating shaft 9 inside the main pipeline 2, a sealing strip is arranged on the outside of the rotating shaft 9, and at the same time, there are The first baffle plate 11 and the second baffle plate 111 are rotatably connected to the main pipeline 2. When the staff rotates the bolt 14 on the side corresponding to the first baffle plate 11 or the second baffle plate 111, the bolt 14 is threadedly screwed with the connecting device provided on the surface of one side of the first baffle plate 11 and the second baffle plate 111, and the bolt 14 is threadedly screwed with the rotating shaft 9, so that the first baffle plate 11 or the second baffle plate 111 is fastened and connected to the rotating shaft 9. When the plate 11 is connected to the rotating shaft 9, the staff rotates the rotating shaft 9 so that the No. 1 baffle 11 and the rotating shaft 9 rotate simultaneously, so that the No. 1 pipe 3 can enter water, while the No. 2 pipe 4 is blocked by the No. 2 baffle 111 and cannot enter water. When the No. 2 baffle 111 is connected to the rotating shaft 9, the staff rotates the rotating shaft 9 so that the No. 2 baffle 111 and the rotating shaft 9 rotate simultaneously, so that the No. 2 pipe 4 can enter water, while the No. 1 pipe 3 is blocked by the No. 1 baffle 11 and cannot enter water. When the bolt 14 When they are connected to the No. 1 baffle 11 and the No. 2 baffle 111, the rotating shaft 9 is rotated so that water can enter the No. 1 pipeline 3 and the No. 2 pipeline 4. An annular groove is opened on the rotating shaft 9, and a rubber pad is fixedly installed on the surface of the annular groove. When one side of the pipeline is blocked, the water in the main pipeline 2 will flow to the unblocked end, thereby controlling the MEG concentration in the circulating water, reducing impurities in the ethylene oxide product, and improving the product production efficiency. It has positive environmental protection significance and saves a certain amount of production cost.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ethylene oxide stripping tower with a circulating water splitter, comprising a stripping tower (101) and a bottom pump (1) located inside the stripping tower (101), characterized in that: One end of the tower bottom pump (1) is connected to a main pipeline (2), and the corresponding two sides of the main pipeline (2) are respectively connected to a first pipeline (3) and a second pipeline (4), a rotating shaft (9) is rotatably installed inside the main pipeline (2), and a first baffle (11) and a second baffle (111) are arranged on the corresponding two sides of the rotating shaft (9), and at least two bolts (14) are screwed and connected at the upper end of the rotating shaft (9), and the bolts (14) are used to fasten the first baffle (11) and the second baffle (111) to the rotating shaft (9).

2. The ethylene oxide stripping tower with a circulating water splitter according to claim 1, characterized in that: The rotating shaft (9) extends to the outside of the main pipe (2), the bolt (14) extends to the outside of the main pipe (2), and a handle (16) is fixedly mounted on the upper surface of the rotating shaft (9).

3. The ethylene oxide stripping tower with a circulating water splitter according to claim 1, characterized in that: At least two device blocks (12) are fixedly mounted on one side surface of the first baffle plate (11) and the second baffle plate (111), and a threaded hole (13) is provided on one side surface of the device block (12).

4. The ethylene oxide stripping tower with a circulating water splitter according to claim 1, characterized in that: A connecting plate (15) is rotatably mounted on one side surface of the rotating shaft (9), and one end of the connecting plate (15) away from the rotating shaft (9) is fixedly mounted on the inner wall of the main pipe (2).

5. The ethylene oxide stripping tower with a circulating water splitter according to claim 1, characterized in that: A revolving door (17) is rotatably mounted on one side surface of the main pipeline (2), and a mounting block (5) is fixedly mounted inside the main pipeline (2).

6. The ethylene oxide stripping tower with a circulating water splitter according to claim 5, characterized in that: The inner wall of the mounting block (5) is provided with a sliding groove (6), and a filtering device (8) is slidably arranged inside the sliding groove (6).

7. The ethylene oxide stripping tower with a circulating water splitter according to claim 6, characterized in that: A device box (7) is fixedly arranged on the peripheral side of the filter device (8), and the filter device (8) is slidably connected to the sliding groove (6) via the device box (7).

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