Liquid distribution device of efficient rectifying tower

Abstract

The utility model discloses a liquid distribution device of a high-efficiency rectifying tower, relates to the technical field of distributors, and aims to solve the problem that the mass transfer efficiency of a filler is influenced due to the fact that liquid drops splash into gas phase holes after a liquid phase drops in an existing distributor structure. The fan-shaped gas phase channels are arranged on the periphery of the upper end of the distributor base plate, the number of the fan-shaped gas phase channels is four, and the fan-shaped gas phase channels and the distributor base plate are integrally formed; the four fan-shaped gas-phase channels are arranged in parallel, the forward fan blade guide plates are arranged at the upper ends of the four fan-shaped gas-phase channels, the forward fan blade guide plates are connected with the fan-shaped gas-phase channels in a welded mode, a cross-shaped channel is formed among the four fan-shaped gas-phase channels, and five dripping holes are evenly distributed in the cross-shaped channel.

Description

Technical Field

[0001] The utility model relates to the technical field of distributors, in particular to a high-efficiency liquid distribution device for a distillation tower. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. By utilizing the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, and the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation. A plate tower is a widely used gas-liquid mass transfer equipment, which is evenly distributed with tower plate-shaped distributors. The distributors are divided into bubble plates, sieve plates, float valve plates, mesh plates, tongue-shaped plates, etc. according to their structures.

[0003] However, the current distributor structure has the problem that after the liquid phase drips, the droplets splash into the gas phase holes, thereby affecting the mass transfer efficiency of the packing; therefore, we propose an efficient distillation tower liquid distribution device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an efficient liquid distribution device for a distillation tower to solve the problem that, after the liquid phase drips, the liquid droplets splash into the gas phase holes, thereby affecting the mass transfer efficiency of the packing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an efficient liquid distribution device for a distillation tower, comprising a distributor base plate;

[0006] Also includes:

[0007] The fan-shaped gas phase channel is arranged around the upper end of the distributor substrate, and there are four fan-shaped gas phase channels, which are all formed integrally with the distributor substrate;

[0008] The forward-running blade guide plate is installed at the upper end of the four fan-shaped gas phase channels, and the forward-running blade guide plate is welded to the fan-shaped gas phase channels.

[0009] Preferably, a cross channel is provided between the four fan-shaped gas phase channels, and drip holes are evenly arranged inside the cross channel, and five drip holes are provided.

[0010] Preferably, a fan-shaped frame is provided below the fan-shaped gas phase channel, and a water-proof and breathable mesh is provided inside the fan-shaped frame.

[0011] Preferably, the four sides of the fan-shaped frame are threadedly connected to the bottom surface of the distributor substrate through screws, and a plurality of screws are provided.

[0012] Preferably, the upper ends of the four forward-running fan blade guide plates are welded and connected via a reinforcement ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a distributor with a gas-liquid two-phase hole sandwich arrangement structure, in which the liquid phase drip holes are evenly arranged in the cross channel, so that the liquid phase can always be evenly distributed downward during distillation, which greatly improves the mass transfer efficiency of the filler, improves the phase contact in ultra-low temperature distillation, and thus improves the efficiency of the tower; and the forward blade guide plate above the fan-shaped gas phase channel, on the one hand, can prevent the liquid phase from flowing from top to bottom into the fan-shaped gas phase channel from bottom to top, and guide it into the cross channel by relying on the curvature of the blades; on the other hand, it has a certain shielding effect on the fan-shaped gas phase channel, preventing the liquid phase from splashing into the gas phase holes after dripping, thereby affecting the mass transfer efficiency of the filler, and solves the problem of the existing distributor structure that the liquid phase drops splashing into the gas phase holes after dripping, thereby affecting the mass transfer efficiency of the filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the bottom structure of the utility model;

[0018] In the figure: 1. distributor substrate; 2. fan-shaped gas phase channel; 3. forward fan blade guide plate; 4. reinforcement ring; 5. cross channel; 6. drip hole; 7. fan-shaped frame; 8. screws; 9. water-proof and breathable wire mesh. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 , the utility model provides an embodiment: a high-efficiency distillation tower liquid distribution device, including a distributor substrate 1;

[0021] Also includes:

[0022] The fan-shaped gas phase channel 2 is arranged around the upper end of the distributor substrate 1. There are four fan-shaped gas phase channels 2, and they are all formed integrally with the distributor substrate 1.

[0023] The forward blade guide plate 3 is installed at the upper end of the four fan-shaped gas phase channels 2, and the forward blade guide plate 3 is welded to the fan-shaped gas phase channels 2.

[0024] See also Figure 2 A cross channel 5 is arranged between the four fan-shaped gas phase channels 2, and drip holes 6 are evenly arranged inside the cross channel 5, and there are five drip holes 6. The aperture and arrangement number of the liquid phase drip holes 6 can be adjusted according to the separation requirements. Because they are sandwiched and arranged between the fan-shaped gas phase channels 2, the liquid phase can always be evenly distributed downward during distillation, which greatly improves the mass transfer efficiency of the packing, improves the phase contact in the ultra-low temperature distillation, and thus improves the efficiency of the tower.

[0025] See also Figure 3 A fan-shaped frame 7 is arranged below the fan-shaped gas phase channel 2, and a water-proof and breathable wire mesh 9 is arranged inside the fan-shaped frame 7. The water-proof and breathable wire mesh 9 allows gas to pass through from bottom to top and has a certain isolation effect on the liquid phase.

[0026] See also Figure 3 The four sides of the fan-shaped frame 7 are threadedly connected to the bottom surface of the distributor substrate 1 through screws 8, and a plurality of screws 8 are provided. The waterproof and breathable screen 9 is fixed in the fan-shaped frame 7 and can be disassembled and assembled along with the fan-shaped frame 7 for easy maintenance and replacement.

[0027] See also Figure 1 The upper ends of the four forward-moving blade guide plates 3 are welded and connected by a reinforcement ring 4. The reinforcement ring 4 connects the four forward-moving blade guide plates 3 as a whole, increases the structural strength of the forward-moving blade guide plates 3 when in use, and ensures their service life.

[0028] Working principle: When in use, the distributor adopts a design structure of a fan-shaped gas phase channel 2 sandwiched with a cross channel 5, wherein the liquid phase drip holes 6 are evenly arranged in the cross channel 5, so that the liquid phase can always be evenly distributed downward during distillation, which greatly improves the mass transfer efficiency of the filler, improves the phase contact in ultra-low temperature distillation, and thus improves the efficiency of the tower. The forward-running fan blade guide plate 3 above the fan-shaped gas phase channel 2, on the one hand, can prevent the liquid phase from flowing from top to bottom into the fan-shaped gas phase channel 2 from bottom to top, and guide it into the cross channel 5 by relying on the curvature of the fan blades. On the other hand, it plays a certain shielding role on the fan-shaped gas phase channel 2, preventing the liquid phase from splashing into the gas phase holes after dripping, thereby affecting the mass transfer efficiency of the filler.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-efficiency distillation tower liquid distribution device, comprising a distributor base plate (1); Features: Also includes: The fan-shaped gas phase channels (2) are arranged around the upper end of the distributor substrate (1), and there are four fan-shaped gas phase channels (2), which are all formed integrally with the distributor substrate (1); The forward-running blade guide plate (3) is installed at the upper end of the four fan-shaped gas phase channels (2), and the forward-running blade guide plate (3) is welded to the fan-shaped gas phase channels (2).

2. A high-efficiency liquid distribution device for a distillation tower according to claim 1, characterized in that: A cross channel (5) is provided between the four fan-shaped gas phase channels (2), and drip holes (6) are evenly arranged inside the cross channel (5), and five drip holes (6) are provided.

3. The high-efficiency liquid distribution device for a distillation tower according to claim 1, characterized in that: A fan-shaped frame (7) is arranged below the fan-shaped gas phase channel (2), and a water-proof and breathable wire mesh (9) is arranged inside the fan-shaped frame (7).

4. A high-efficiency liquid distribution device for a distillation tower according to claim 3, characterized in that: The four sides of the fan-shaped frame (7) are threadedly connected to the bottom surface of the distributor base plate (1) through screws (8), and a plurality of screws (8) are provided.

5. The high-efficiency liquid distribution device for a distillation tower according to claim 1, characterized in that: The upper ends of the four forward-running blade guide plates (3) are connected by welding via a reinforcement ring (4).

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