Pure benzene tower condenser

Abstract

The utility model belongs to the technical field of benzene and methylbenzene separation, and particularly relates to a pure benzene tower condenser which comprises a condenser body used for condensing benzene steam, a plurality of steel pipes are arranged in the condenser body, a plurality of first baffles and a plurality of second baffles are arranged in the condenser body, and the first baffles and the second baffles are used for guiding the benzene steam. The first baffles and the second baffles are both in an inclined state, and the multiple first baffles are located at the bottom of an inner cavity of the condenser body. Due to the fact that the first baffle and the second baffle are in the inclined state, the distance of benzene steam during linear movement is increased, the length of a linear movement path of the benzene steam is increased under the condition that the arc movement path of the benzene steam is not shortened, heat of the benzene steam is more sufficiently transmitted to a cooling medium, the condensation effect is guaranteed, and meanwhile the condensation efficiency is improved. And the situation that benzene steam corrodes the first baffle and the second baffle when moving in the condenser body can be avoided through the fluororubber anti-corrosion coating layer.

Description

Technical Field

[0001] The utility model belongs to the technical field of benzene and toluene separation, and specifically relates to a pure benzene tower condenser. Background Art

[0002] In the benzene and toluene separation system process, a part of the benzene and toluene components at the outlet of the solvent regeneration tower reflux pump enter the middle feed of the pure benzene distillation tower. The benzene vapor at the top of the pure benzene distillation tower is condensed by the pure benzene tower condenser and then enters the pure benzene tower reflux tank for storage. The condenser is generally a shell-and-tube condenser, which condenses the benzene vapor by heat exchange between the cooling medium and the benzene vapor flowing inside and outside the steel pipe. A number of baffles are provided inside the existing condenser to increase the moving path of the high-temperature fluid so that the high-temperature fluid moves in an S shape inside the condenser. The existing baffles are perpendicular to the inner wall of the condenser. Compared with the vertical baffles, the baffles in an inclined state can increase the length of the straight moving path of the high-temperature fluid without shortening the arc-shaped moving path of the high-temperature fluid. At the same time, benzene substances are a chemical substance that is challenging to fluororubber. They are highly corrosive and volatile, and have certain corrosiveness to most materials, which can easily cause corrosion to the baffles. Utility Model Content

[0003] The utility model provides a pure benzene tower condenser, which has the characteristics that the first baffle plate and the second baffle plate are in an inclined state, so that the distance of the benzene vapor when moving in a straight line is increased, which is beneficial to increase the length of the straight line moving path of the benzene vapor without shortening the arc-shaped moving path of the benzene vapor, so that the heat of the benzene vapor is more fully transferred to the cooling medium, and the condensation effect is guaranteed. At the same time, the fluororubber anti-corrosion coating layer can prevent the benzene vapor from corroding the first baffle plate and the second baffle plate when moving inside the condenser body.

[0004] The utility model provides the following technical solution: comprising a condenser body for condensing benzene vapor, characterized in that: a plurality of steel pipes are arranged inside the condenser body, and a plurality of first baffles and second baffles for guiding benzene vapor are arranged inside the condenser body, the first baffle and the second baffle are both in an inclined state, a plurality of the first baffles are located at the bottom of the inner cavity of the condenser body, a plurality of the second baffles are located at the top of the inner cavity of the condenser body, and a plurality of the first baffles and a plurality of the second baffles are staggered with each other, a plurality of the steel pipes penetrate a plurality of the first baffles and a plurality of the second baffles, and a plurality of the first baffles and a plurality of the second baffles are connected by connecting rods, and a fluororubber anti-corrosion coating layer is provided on both sides of the first baffle and the second baffle.

[0005] Among them, the first baffle is provided with a plurality of through slots 1, and the plurality of steel pipes are located inside the plurality of through slots 1.

[0006] Wherein, the second baffle is provided with a plurality of through slots 2, and the plurality of steel pipes are located inside the plurality of through slots 2.

[0007] Wherein, a plurality of the first baffles and a plurality of the second baffles are fixedly connected via support rods, and the first baffles and the second baffles are parallel to each other.

[0008] Wherein, an inclined block 1 and an inclined block 2 are respectively provided at both ends of the connecting rod, and the inclined block 1 and the inclined block 2 are respectively fixedly connected to both sides of the first baffle plate and both sides of the second baffle plate.

[0009] The beneficial effect of the utility model is that the movement path of the benzene vapor is made S-shaped by the guidance of the first baffle and the second baffle, thereby increasing the length of the benzene vapor flow path and improving the condensation effect of the condenser body. Since the first baffle and the second baffle are in an inclined state, the distance of the benzene vapor when moving in a straight line is increased, which is beneficial to increase the length of its straight line movement path without shortening the arc-shaped movement path of the benzene vapor, so that the heat of the benzene vapor is more fully transferred to the cooling medium, ensuring the condensation effect. At the same time, the fluororubber anti-corrosion coating layer can prevent the benzene vapor from corroding the first baffle and the second baffle when moving inside the condenser body.

[0010] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 A magnified view of part A in FIG.

[0013] Figure 3 It is a schematic diagram of the structure of the first baffle and the second baffle in the utility model;

[0014] Figure 4 For the utility model Figure 1 Schematic diagram of the motion dynamics;

[0015] In the figure: 1. condenser body; 11. steel pipe; 2. first baffle; 21. through groove 1; 22. support rod; 3. second baffle; 31. through groove 2; 32. fluororubber anti-corrosion coating layer; 4. connecting rod; 41. inclined block 1; 42. inclined block 2. DETAILED DESCRIPTION

[0016] See also Figure 1-Figure 4 The utility model provides the following technical solution: it includes a condenser body 1 for condensing benzene vapor, characterized in that: a plurality of steel pipes 11 are provided inside the condenser body 1, and a plurality of first baffles 2 and second baffles 3 for guiding benzene vapor are provided inside the condenser body 1, the first baffles 2 and the second baffles 3 are both in an inclined state, a plurality of first baffles 2 are located at the bottom of the inner cavity of the condenser body 1, a plurality of second baffles 3 are located at the top of the inner cavity of the condenser body 1, and a plurality of first baffles 2 and a plurality of second baffles 3 are staggered with each other, a plurality of steel pipes 11 penetrate a plurality of first baffles 2 and a plurality of second baffles 3, and a plurality of first baffles 2 and a plurality of second baffles 3 are connected by connecting rods 4, and a fluororubber anti-corrosion coating layer 32 is provided on both sides of the first baffle 2 and the second baffle 3.

[0017] In this embodiment: it includes a condenser body 1 for condensing benzene vapor. In the benzene and toluene separation system process, a part of the benzene and toluene components at the outlet of the reflux pump of the solvent regeneration tower enters the middle part of the pure benzene distillation tower as feed. The benzene vapor at the top of the pure benzene distillation tower is condensed by the condenser body 1 and then enters the reflux tank of the pure benzene tower for storage. The two ends of the condenser body 1 are the inlet and outlet of the condensate, and the right bottom of the condenser body 1 is the inlet for the benzene vapor to enter, and the left top of the condenser body 1 is the outlet for discharging the condensed benzene liquid. The interior of the condenser body 1 is provided with a plurality of steel pipes 11. When the cooling medium enters the interior of the condenser body 1 from the inlet at one end of the condenser body 1, it will enter the interior of the plurality of steel pipes 11, and the interior of the condenser body 1 A plurality of first baffles 2 and second baffles 3 are provided for guiding benzene vapor. When benzene vapor enters the interior of the condenser body 1, the benzene vapor is guided by the plurality of first baffles 2 and the plurality of second baffles 3 to move in the direction of the first baffles 2 and the second baffles 3. The first baffles 2 and the second baffles 3 are both in an inclined state. When the benzene vapor moves in a straight line along the direction of the first baffles 2 and the second baffles 3, the straight-line moving distance of the benzene vapor becomes longer. The plurality of first baffles 2 are located at the bottom of the inner cavity of the condenser body 1, and there is a gap between the top of the first baffle 2 and the top of the inner cavity of the condenser body 1. The plurality of second baffles 3 are located at the top of the inner cavity of the condenser body 1, and there is a gap between the bottom of the second baffle 3 and the bottom of the inner cavity of the condenser body 1. The first baffle 2 and the plurality of second baffles 3 are offset from each other, and there is a gap between the first baffle 2 and the second baffle 3, so that benzene vapor can pass between the first baffle 2 and the second baffle 3, and the plurality of steel pipes 11 penetrate the plurality of first baffles 2 and the second baffle 3. When the benzene vapor enters the interior of the condenser body 1 and flows between the plurality of first baffles 2 and the second baffle 3, it will contact the outer wall of the steel pipe 11 and transfer the heat to the pipe wall. At this time, the cooling medium will absorb the heat and discharge it, while the temperature of the benzene vapor will decrease and gradually condense into liquid. The guidance of the first baffle 2 and the second baffle 3 will make the movement path of the benzene vapor S-shaped, thereby increasing the length of the benzene vapor flow path and improving the condensation effect of the condenser body 1. The baffle 2 and the second baffle 3 are in an inclined state, so that the distance of the benzene vapor when moving in a straight line increases, which is conducive to further extending the moving path of the benzene vapor, so that the heat of the benzene vapor is more fully transferred to the cooling medium, ensuring the condensation effect, and a plurality of first baffles 2 and a plurality of second baffles 3 are connected by connecting rods 4. Through the connection of the plurality of connecting rods 4, the positions of the plurality of first baffles 2 and the positions of the plurality of second baffles 3 are fixed, so that the plurality of first baffles 2 and the plurality of second baffles 3 remain parallel. Both sides of the first baffle 2 and the second baffle 3 are provided with a fluororubber anti-corrosion coating layer 32. The fluororubber anti-corrosion coating layer 32 can withstand the erosion of benzene compounds due to its unique molecular structure.It has excellent chemical stability and corrosion resistance, and maintains stability in a variety of chemical solvents and strong acid and alkali environments. Benzene is a chemical substance that is challenging to fluororubber. It is highly corrosive and volatile, and has a certain degree of erosion on most materials, but the fluororubber anti-corrosion coating layer 32 can withstand the erosion of benzene compounds. Therefore, the fluororubber anti-corrosion coating layer 32 can prevent the benzene vapor from moving inside the condenser body 1 and corroding the first baffle 2 and the second baffle 3.

[0018] The first baffle plate 2 is provided with a plurality of through grooves 21, and a plurality of steel pipes 11 are located inside the plurality of through grooves 21; when the first baffle plate 2 is in an inclined state, the through grooves 21 are parallel to the steel pipes 11, and therefore, when the plurality of steel pipes 11 are connected to the plurality of through grooves 21, the inclination angle of the first baffle plate 2 can be further fixed.

[0019] The second baffle plate 3 is provided with a plurality of through grooves 31 , and a plurality of steel pipes 11 are located inside the plurality of through grooves 31 ; when the second baffle plate 3 is in an inclined state, the through grooves 31 are parallel to the steel pipes 11 , and when the steel pipes 11 are connected to the through grooves 31 , the second baffle plate 3 can be limited.

[0020] A plurality of first baffles 2 and a plurality of second baffles 3 are fixedly connected by a support rod 22, and the first baffles 2 and the second baffles 3 are parallel to each other; both ends of the support rod 22 are fixedly connected to the first baffle 2 and the second baffle 3 respectively, so that the plurality of first baffles 2 and the second baffle 3 remain in a parallel state.

[0021] The two ends of the connecting rod 4 are respectively provided with an inclined block 1 41 and an inclined block 2 42, which are respectively fixedly connected to the two sides of the first baffle 2 and the two sides of the second baffle 3; through the connection of the inclined block 1 41 and the inclined block 2 42 with the first baffle 2 and the second baffle 3, the angle between the first baffle 2 and the second baffle 3 and the inner wall of the condenser body 1 can be fixed.

[0022] The working principle and use process of the utility model are as follows: a cooling medium is arranged inside the steel pipe 11. When benzene vapor enters the interior of the condenser body 1 from the bottom of the condenser body 1 and flows between a plurality of first baffles 2 and second baffles 3, it will contact the outer wall of the steel pipe 11 and transfer heat to the tube wall. At this time, the cooling medium will absorb the heat and discharge it, while the temperature of the benzene vapor will decrease and gradually condense into liquid. The guidance of the first baffle 2 and the second baffle 3 will make the movement path of the benzene vapor S-shaped, thereby increasing the length of the benzene vapor flow path and improving the condensation effect of the condenser body 1. Since the first baffle 2 and the second baffle 3 are in an inclined state, the distance of the benzene vapor when moving in a straight line is increased, which is conducive to further extending the movement path of the benzene vapor.

Claims

1. A pure benzene tower condenser, comprising a condenser body (1) for condensing benzene vapor, Features: A plurality of steel pipes (11) are provided inside the condenser body (1), and a plurality of first baffles (2) and second baffles (3) for guiding benzene vapor are provided inside the condenser body (1), the first baffles (2) and the second baffles (3) are both in an inclined state, a plurality of the first baffles (2) are located at the bottom of the inner cavity of the condenser body (1), a plurality of the second baffles (3) are located at the top of the inner cavity of the condenser body (1), and a plurality of the first baffles (2) and a plurality of the second baffles (3) are mutually offset, a plurality of the steel pipes (11) penetrate a plurality of the first baffles (2) and a plurality of the second baffles (3), and a plurality of the first baffles (2) and a plurality of the second baffles (3) are connected by connecting rods (4), and a fluororubber anti-corrosion coating layer (32) is provided on both sides of the first baffles (2) and the second baffles (3).

2. A pure benzene tower condenser according to claim 1, Features: The first baffle plate (2) is provided with a plurality of through slots (21), and the plurality of steel pipes (11) are located inside the plurality of through slots (21).

3. A pure benzene tower condenser according to claim 2, Features: The second baffle plate (3) is provided with a plurality of second through grooves (31), and the plurality of steel pipes (11) are located inside the plurality of second through grooves (31).

4. A pure benzene tower condenser according to claim 3, Features: A plurality of the first baffles (2) and a plurality of the second baffles (3) are fixedly connected via support rods (22), and the first baffles (2) and the second baffles (3) are parallel to each other.

5. A pure benzene tower condenser according to claim 4, Features: The two ends of the connecting rod (4) are respectively provided with an inclined block 1 (41) and an inclined block 2 (42), and the inclined block 1 (41) and the inclined block 2 (42) are respectively fixedly connected to the two sides of the first baffle (2) and the two sides of the second baffle (3).

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