A reboiler at the bottom of an aromatics separation tower with stable operation

Abstract

The utility model discloses a reboiler at the bottom of an aromatic separation tower with stable operation, and relates to the technical field of separation towers. The reboiler at the bottom of an aromatic separation tower with stable operation comprises a separation tower body, a tower body and a reboiler at the bottom of the tower, and the lower end of the reboiler at the bottom of the tower is fixedly connected with a support base, and the separation tower body, the tower body and the opposite ends of the reboiler at the bottom of the tower are fixedly welded with an annular assembly ear, and the assembly ear is screwed with a fixing bolt; the separation tower body, the tower body and the opposite ends of the reboiler at the bottom of the tower are sealed with a sealing gasket. The reboiler at the bottom of an aromatic separation tower with stable operation, through the elastic component and the buffer plate, when the tube bundle is located inside the clamp, if the tube bundle is affected by external force to produce vibration or impact, the elastic component and the wavy buffer plate shrink and expand according to their own elasticity, thereby absorbing and consuming energy for the impact force, thereby reducing the damage to the tube bundle caused by the impact, and thereby ensuring the normal use of the tube bundle.

Description

Technical Field

[0001] The utility model relates to the technical field of separation towers, in particular to a reboiler at the bottom of an aromatics separation tower with stable operation. Background Art

[0002] In chemical unit operations, in order to provide heat to the system and improve the distillation, analysis or regeneration effects, a reboiler is usually set at the bottom of the separation tower to form a circulation system. The steam generated by the reboiler is sent back to the tower through the tube bundle for solution distillation or regeneration.

[0003] The tube bundles of most existing separation tower bottom reboilers are usually simply installed inside the tower body. When the tube bundles are subjected to intense evaporation, transportation, hoisting, etc., uncontrollable deformation may occur, which may cause damage to the tube bundle and even reduce the sealing performance of the system, thus causing the tube bundle to be unable to be used normally. In addition, the tube bundle does not have a good buffering effect and is easily damaged. In view of this, an aromatics separation tower bottom reboiler with stable operation is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an aromatics separation tower bottom reboiler with stable operation, which can solve the problem that the tube bundles of most existing separation tower bottom reboilers are usually simply installed inside the tower body, and when the tube bundles are subjected to intense evaporation, transportation, hoisting and the like, uncontrollable deformation may occur, thereby causing damage to the tube bundles, and even causing a decrease in the sealing performance of the system, thereby causing the tube bundles to be unable to be used normally, and the tube bundles do not have a good buffering effect and are easily damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aromatic hydrocarbon separation tower bottom reboiler with stable operation, comprising a separation tower body, a tower body and a tower bottom reboiler, wherein the lower end of the tower bottom reboiler is fixedly connected to a support base, and an annular assembly ear is fixedly welded on the opposite ends of the separation tower body, the tower body and the tower bottom reboiler, and a fixing bolt is screwed on the assembly ear;

[0006] The separation tower body, the tower body and the opposite end of the tower bottom reboiler are all sealed with sealing gaskets;

[0007] The interior of the tower is provided with tube bundles;

[0008] The stabilizing device is arranged inside the reboiler at the bottom of the tower and the tower body. Through the stabilizing device, the tube bundle will not be affected by external factors during transportation or use to cause deformation and displacement, thereby ensuring the normal supply of steam to the tube bundle and reducing the cost expenditure caused by its maintenance and replacement.

[0009] Preferably, the stabilizing device comprises a mounting rod, the mounting rod is fixedly connected to the reboiler at the bottom of the tower, and the rod body of the mounting rod is located inside the tower body;

[0010] A cross-shaped support mounting piece is fixedly sleeved on the mounting rod, and a buffer mounting groove is provided on the end surface of the support mounting piece;

[0011] The inside of the buffer installation groove is fixedly connected with a clamp;

[0012] The tube bundles are fixedly clamped inside the clamps respectively.

[0013] Preferably, an elastic component is fixedly connected to the interior of the buffer installation groove, and a wavy buffer pad is fixedly connected to the inner wall of the clamp.

[0014] Preferably, a ring-shaped limit card is fixedly connected to the inner wall of the tower body, and a limit groove is provided on the inner wall of the limit card.

[0015] Preferably, the clamp is in the shape of two-thirds of a ring.

[0016] Preferably, the limiting groove is arc-shaped and is adapted to the clamp.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The stable operation of the aromatic separation tower bottom reboiler is achieved by providing an elastic component and a buffer pad. When the tube bundle is located inside the clamp, if the tube bundle is vibrated or impacted by an external force, the elastic component and the corrugated buffer pad will contract and expand according to their own elasticity, thereby absorbing and consuming the impact force, thereby reducing the damage to the tube bundle caused by the impact, thereby ensuring the normal use of the tube bundle.

[0019] (2) The stable operation of the aromatic separation tower bottom reboiler, when the tower body and the tower bottom reboiler are assembled, the limit card and the support mounting piece are in a horizontal state, and the clamp is located inside the limit groove, thereby sealing the clamp opening and preventing the tube bundle from being separated from the clamp, thereby ensuring the stability of the tube bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the structure of a reboiler at the bottom of an aromatics separation tower with stable operation according to the utility model;

[0022] Figure 2 This is a schematic diagram of the tube bundle of the utility model;

[0023] Figure 3This is a schematic diagram of the support and installation member of the utility model;

[0024] Figure 4 For this utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0025] Figure numerals: 1. separation tower body; 2. tower body; 3. tower bottom reboiler; 4. mounting rod; 5. support mounting piece; 6. tube bundle; 7. limit card; 8. buffer mounting groove; 9. elastic component; 10. clamp; 11. buffer pad; 12. limit groove; 13. assembly ear; 14. support base; 15. fixing bolt. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] See also Figure 1-4 The utility model provides a technical solution: a stable operation aromatic hydrocarbon separation tower bottom reboiler, comprising a separation tower body 1, a tower body 2 and a tower bottom reboiler 3, wherein the lower end of the tower bottom reboiler 3 is fixedly connected to a support base 14;

[0031] The separation tower body 1, the tower body 2 and the tower bottom reboiler 3 are all fixedly welded with an annular assembly ear 13 at the opposite ends, and the assembly ear 13 is screwed with a fixing bolt 15;

[0032] The separation tower body 1, the tower body 2 and the tower bottom reboiler 3 are assembled to each other through the assembly ears 13 and the fixing bolts 15, so that the device is more convenient and quick in the assembly and subsequent disassembly process;

[0033] The separation tower body 1, the tower body 2 and the opposite ends of the tower bottom reboiler 3 are all sealed with sealing gaskets;

[0034] A tube bundle 6 is arranged inside the tower body 2;

[0035] The stabilizing device is arranged inside the tower bottom reboiler 3 and the tower body 2. The stabilizing device is arranged so that the tube bundle 6 will not be deformed or displaced by external factors during transportation or use, thereby ensuring the normal supply of steam by the tube bundle 6 and reducing the cost expenditure caused by its maintenance and replacement;

[0036] Furthermore, the stabilizing device includes a mounting rod 4, the mounting rod 4 is fixedly connected to the tower bottom reboiler 3, and the rod body of the mounting rod 4 is located inside the tower body 2;

[0037] A cross-shaped support mounting member 5 is fixedly sleeved on the mounting rod 4, and a buffer mounting groove 8 is provided on the end surface of the support mounting member 5;

[0038] The buffer installation groove 8 is fixedly connected with a clamp 10, which is a two-thirds ring.

[0039] The hoop 10 is made of elastic material;

[0040] The tube bundles 6 are fixedly clamped inside the clamps 10 respectively;

[0041] By setting the clamp 10 to be in a two-thirds ring shape and using an elastic material, the tube bundle 6 can be inserted into the inside of the clamp 10 through the opening of the clamp 10, thereby preliminarily fixing the tube bundle 6;

[0042] Furthermore, an elastic component 9 is fixedly connected inside the buffer installation groove 8, and a wavy buffer pad 11 is fixedly connected to the inner wall of the clamp 10;

[0043] By means of the elastic component 9 and the buffer plate 11, when the tube bundle 6 is located inside the clamp 10, if the tube bundle 6 is vibrated or impacted by external force, the elastic component 9 and the wavy buffer plate 11 contract and expand according to their own elasticity, thereby absorbing and consuming the impact force, thereby reducing the damage to the tube bundle 6 caused by the impact, thereby ensuring the normal use of the tube bundle 6;

[0044] Furthermore, a ring-shaped limit card 7 is fixedly connected to the inner wall of the tower body 2, and a limit groove 12 is provided on the inner wall of the limit card 7;

[0045] The limiting groove 12 is arc-shaped;

[0046] When the tower body 2 and the tower bottom reboiler 3 are assembled, the limit card 7 and the support mounting member 5 are in a horizontal state. At this time, the clamp 10 is located inside the limit groove 12, thereby sealing the opening of the clamp 10 and preventing the tube bundle 6 from detaching from the clamp 10, thereby ensuring the stability of the tube bundle 6.

[0047] Working principle: By setting the clamp 10 to be a two-thirds ring, and the clamp 10 is made of elastic material, the tube bundle 6 can be inserted into the inside of the clamp 10 through the opening of the clamp 10, so that the tube bundle 6 is initially fixed. When the tower body 2 and the tower bottom reboiler 3 are assembled, the limit card 7 and the support mounting member 5 are horizontal. At this time, the clamp 10 is located inside the limit groove 12, so it has the effect of blocking the opening of the clamp 10, and at the same time, the tube bundle 6 cannot be separated from the clamp 10, thereby ensuring the stability of the tube bundle 6;

[0048] By providing the elastic component 9 and the buffer plate 11, when the tube bundle 6 is located inside the clamp 10, if the tube bundle 6 is affected by external force and vibrates or impacts, the elastic component 9 and the wavy buffer plate 11 contract and expand according to their own elasticity, thereby absorbing and consuming the impact force, thereby reducing the damage to the tube bundle 6 caused by the impact, thereby ensuring the normal use of the tube bundle 6.

[0049] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A stable operation aromatic hydrocarbon separation tower bottom reboiler, comprising a separation tower body (1), a tower body (2) and a tower bottom reboiler (3), wherein the lower end of the tower bottom reboiler (3) is fixedly connected to a support base (14), characterized in that: The separation tower body (1), the tower body (2) and the tower bottom reboiler (3) are all fixedly welded with an annular assembly ear (13) at the opposite ends, and the assembly ear (13) is screwed with a fixing bolt (15); The separation tower body (1), the tower body (2) and the opposite ends of the tower bottom reboiler (3) are all sealed with sealing gaskets; A pipe bundle (6) is arranged inside the tower body (2); The stabilizing device is arranged inside the tower bottom reboiler (3) and the tower body (2). The stabilizing device is arranged so that the tube bundle (6) will not be affected by external factors during transportation or use and will not be deformed or displaced, thereby ensuring the normal supply of steam by the tube bundle (6) and reducing the cost expenditure caused by its maintenance and replacement.

2. The stable operation reboiler for separating aromatic hydrocarbons from a bottom of a tower according to claim 1, characterized in that: The stabilizing device comprises a mounting rod (4), the mounting rod (4) is fixedly connected to the tower bottom reboiler (3), and the rod body of the mounting rod (4) is located inside the tower body (2); A cross-shaped support mounting member (5) is fixedly sleeved on the mounting rod (4), and a buffer mounting groove (8) is provided on the end surface of the support mounting member (5); The interior of the buffer installation groove (8) is fixedly connected with a clamp (10); The tube bundles (6) are respectively fixedly clamped inside the clamps (10).

3. The stable operation reboiler for separating aromatic hydrocarbons from a bottom of a tower according to claim 2, characterized in that: An elastic component (9) is fixedly connected inside the buffer installation groove (8), and a wavy buffer pad (11) is fixedly connected to the inner wall of the clamp (10).

4. The stable operation reboiler for separating aromatic hydrocarbons from a bottom of a tower according to claim 3, characterized in that: An annular limiting card (7) is fixedly connected to the inner wall of the tower body (2), and a limiting groove (12) is provided on the inner wall of the limiting card (7).

5. The stable operation reboiler for separating aromatic hydrocarbons from a bottom of a tower according to claim 4, characterized in that: The hoop (10) is in the shape of two-thirds of a ring.

6. The stable operation reboiler for separating aromatic hydrocarbons from a bottom of a tower according to claim 5, characterized in that: The limiting groove (12) is arc-shaped and is adapted to the clamp (10).

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