Multi-stage adsorption bed pressure balanced distribution structure

Abstract

The utility model relates to the technical field of multi-stage adsorption tanks, in particular to a multi-stage adsorption bed pressure balanced distribution structure which comprises an adsorption tank, an air inlet pipe is fixedly mounted at the bottom end of the adsorption tank, an air collecting plate is fixedly mounted at the bottom end in the adsorption tank, and the air collecting plate is fixedly connected with the air inlet pipe. A plurality of first distribution pipes are evenly and fixedly installed at the top end of the gas collecting plate, a plurality of partition plates are evenly and fixedly installed at the inner end of the adsorption tank, a connecting pipeline is fixedly installed in the middle of the top end of each partition plate, an electric control pressure adjusting valve is installed at the outer end of each connecting pipeline, and a distribution plate is fixedly installed at the top end of each connecting pipeline; a plurality of distribution pipes II are uniformly and fixedly mounted at the top end of the distribution plate; according to the utility model, the distribution pipe and the electric control pressure regulating valve are arranged, so that gas to be treated can be conveniently and uniformly distributed to each filter bed layer, and the situation that local flow is too large or too small is avoided, thereby ensuring that the pressure of each bed layer is relatively balanced.

Description

A multi-stage adsorption bed pressure equalization distribution structure Technical Field

[0001] This utility model relates to the field of multi-stage adsorption tank technology, and in particular to a pressure equalization distribution structure for a multi-stage adsorption bed. Background Technology

[0002] In modern industrial production, multi-stage adsorption beds are widely used in chemical, environmental protection, and energy fields because they can efficiently separate, purify, and clean gases or liquids. Through the combination of different adsorbents and multi-stage adsorption processes, multi-stage adsorption beds can significantly improve the separation efficiency and product purity of target substances.

[0003] Existing multi-stage adsorption beds generally suffer from uneven pressure distribution during operation. When gas enters each adsorption bed, the flow rate is uneven, resulting in excessively high pressure in some beds and insufficient pressure in others.

[0004] To address this, we propose a multi-stage adsorption bed pressure equalization distribution structure. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-stage adsorption bed pressure equalization distribution structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-stage adsorption bed pressure equalization distribution structure includes an adsorption tank, an inlet pipe fixedly installed at the bottom of the adsorption tank, a gas collecting plate fixedly installed at the bottom inside the adsorption tank, the gas collecting plate being fixedly connected to the inlet pipe, a plurality of distribution pipes I being uniformly fixedly installed at the top of the gas collecting plate, a plurality of baffles being uniformly fixedly installed at the inner end of the adsorption tank, a connecting pipe being fixedly installed at the middle of the top of the baffles, an electrically controlled pressure regulating valve being installed at the outer end of the connecting pipe, a distribution plate being fixedly installed at the top of the connecting pipe, and a plurality of distribution pipes II being uniformly fixedly installed at the top of the distribution plate. This structure facilitates the even distribution of the gas to be treated to each filter bed, avoiding situations where the local flow rate is too high or too low, thereby ensuring a relatively balanced pressure in each bed.

[0008] As a further improvement of this utility model: the top surface of the gas collecting plate is provided with an activated carbon layer. The activated carbon has a highly developed pore structure and a huge specific surface area, and has a strong adsorption capacity. It can adsorb a variety of organic pollutants and some inorganic pollutants, such as organic solvents such as benzene, toluene, and xylene, as well as odors and pigments.

[0009] As a further improvement of this utility model: the interior of the adsorption tank is provided with a molecular sieve layer on the side near the activated carbon layer. The molecular sieve is a silicate crystal with a uniform microporous structure. Its pore size is uniform and it can selectively adsorb molecules according to their size and shape. It has high adsorption selectivity and adsorption capacity and has a strong adsorption capacity for polar molecules such as water, carbon dioxide, and hydrogen sulfide.

[0010] As a further improvement of this utility model: an activated alumina layer is provided inside the adsorption tank on the side close to the molecular sieve layer. The activated alumina has good mechanical strength and stability, and its surface has abundant hydroxyl groups, which have a strong adsorption capacity for water, fluorides, arsenic and other substances.

[0011] As a further improvement of this utility model: a silica gel layer is provided at the top of the adsorption tank on the side close to the active alumina layer. Silica gel is a porous silica hydrate with strong hydrophilicity and extremely high adsorption capacity for water. It can quickly adsorb moisture in the air and form a stable hydrate.

[0012] As a further improvement of this utility model: an air outlet pipe is fixedly installed at the top of the adsorption tank, a fixing frame is fixedly installed at the outer end of the adsorption tank, and a support leg is fixedly installed at the bottom of the outer end of the fixing frame, so as to facilitate the fixation and support of the adsorption tank.

[0013] Compared with the prior art, this utility model provides a multi-stage adsorption bed pressure equalization distribution structure, which has the following beneficial effects:

[0014] 1. This utility model, by installing a distribution pipe and an electrically controlled pressure regulating valve, facilitates the even distribution of the gas to be treated to each filter bed, avoiding situations where the local flow rate is too high or too low, thereby ensuring that the pressure of each bed is relatively balanced.

[0015] 2. This utility model, through the combined action of an activated carbon layer, a molecular sieve layer, an activated alumina layer, and a silica gel layer, facilitates the filtration and adsorption of the gas to be treated, thereby more thoroughly removing impurities and improving the purity of the target product.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of a multi-stage adsorption bed pressure equalization distribution structure proposed in this utility model;

[0018] Figure 2 is a cross-sectional schematic diagram of a multi-stage adsorption bed pressure equalization distribution structure proposed in this utility model.

[0019] Figure 3 is a partial enlarged structural diagram of the multi-stage adsorption bed pressure equalization distribution structure proposed in this utility model;

[0020] Figure 4 is a three-dimensional structural diagram of a multi-stage adsorption bed pressure equalization distribution structure proposed in this utility model.

[0021] In the diagram: 1. Adsorption tank; 2. Inlet pipe; 3. Gas collecting plate; 4. Distribution pipe one; 5. Baffle plate; 6. Connecting pipe; 7. Electrically controlled pressure regulating valve; 8. Distribution plate; 9. Distribution pipe two; 10. Activated carbon layer; 11. Molecular sieve layer; 12. Activated alumina layer; 13. Silica gel layer; 14. Outlet pipe; 15. Fixing frame; 16. Support leg. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example: A multi-stage adsorption bed pressure equalization distribution structure, as shown in Figures 1-4, includes an adsorption tank 1, an inlet pipe 2 fixedly installed at the bottom of the adsorption tank 1, a gas collecting plate 3 fixedly installed at the bottom inside the adsorption tank 1, the gas collecting plate 3 being fixedly connected to the inlet pipe 2, several distribution pipes 4 evenly fixedly installed at the top of the gas collecting plate 3, several baffles 5 evenly fixedly installed at the inner end of the adsorption tank 1, a connecting pipe 6 fixedly installed at the middle of the top of the baffles 5, an electrically controlled pressure regulating valve 7 installed at the outer end of the connecting pipe 6, a distribution plate 8 fixedly installed at the top of the connecting pipe 6, and several distribution pipes 9 evenly fixedly installed at the top of the distribution plate 8. The distribution pipes 4 and 9 facilitate the even distribution of the gas to be treated to each filter bed, avoiding situations where the local flow rate is too high or too low, thereby ensuring that the pressure of each bed is relatively balanced. The electrically controlled pressure regulating valve 7 can control the pressure of each bed as needed, keeping the pressure within the bed within a set range.

[0025] As shown in Figures 1-4, an activated carbon layer 10 is provided on the top surface of the gas collecting plate 3. A molecular sieve layer 11 is provided inside the adsorption tank 1 on the side near the activated carbon layer 10. An activated alumina layer 12 is provided inside the adsorption tank 1 on the side near the molecular sieve layer 11. A silica gel layer 13 is provided at the top of the adsorption tank 1 on the side near the activated alumina layer 12. An outlet pipe 14 is fixedly installed at the top of the adsorption tank 1. A fixing frame 15 is fixedly installed at the outer end of the adsorption tank 1. A support leg 16 is fixedly installed at the bottom of the outer end of the fixing frame 15. The activated carbon layer 10, molecular sieve layer 11, activated alumina layer 12 and silica gel layer 13 work together to facilitate the filtration and adsorption of the gas to be treated, which can more thoroughly remove impurities and improve the purity of the target product.

[0026] Working principle: First, when processing the gas, the gas to be treated enters the gas collecting plate 3 of the adsorption tank 1 through the inlet pipe 2. Then, the gas to be treated is evenly distributed to the activated carbon layer 10 through the distribution pipe 4. The baffle 5 separates the activated carbon layer 10, the molecular sieve layer 11, the activated alumina layer 12, and the silica gel layer 13. Each adsorption bed is connected together through the connecting pipe 6. Then, the gas to be treated is evenly distributed to each filter bed through the distribution plate 8 and the second distribution pipe 9. The electrically controlled pressure regulating valve 7 can control the pressure of each bed as needed, so that the pressure in the bed is maintained within the set range. The activated carbon layer 10 has a highly developed pore structure and a huge specific surface area, with strong adsorption capacity, and can adsorb a variety of organic pollutants and some inorganic pollutants, such as benzene. Organic solvents such as toluene and xylene, as well as odors and pigments, are removed. The molecular sieve layer 11 is a silicate crystal with a uniform microporous structure. Its pore size is uniform, and it can selectively adsorb molecules according to their size and shape. It has high adsorption selectivity and adsorption capacity, and has a strong adsorption capacity for polar molecules such as water, carbon dioxide, and hydrogen sulfide. The activated alumina layer 12 has good mechanical strength and stability. Its surface has abundant hydroxyl groups, and it has a strong adsorption capacity for water, fluorides, arsenic, etc. The silica gel layer 13 is a porous silica hydrate with strong hydrophilicity and extremely high adsorption capacity for water. It can quickly adsorb moisture in the air to form a stable hydrate. The fixing frame 15 and the supporting legs 16 fix and support the adsorption tank 1.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage adsorption bed pressure equalization distribution structure, comprising an adsorption tank (1), characterized in that: An air inlet pipe (2) is fixedly installed at the bottom of the adsorption tank (1). An air collecting plate (3) is fixedly installed at the bottom inside the adsorption tank (1). The air collecting plate (3) is fixedly connected to the air inlet pipe (2). Several distribution pipes (4) are evenly fixedly installed at the top of the air collecting plate (3). Several partitions (5) are evenly fixedly installed at the inner end of the adsorption tank (1). A connecting pipe (6) is fixedly installed at the middle of the top of the partition (5). An electrically controlled pressure regulating valve (7) is installed at the outer end of the connecting pipe (6). A distribution plate (8) is fixedly installed at the top of the connecting pipe (6). Several distribution pipes (9) are evenly fixedly installed at the top of the distribution plate (8).

2. The pressure equalization distribution structure of a multi-stage adsorption bed according to claim 1, characterized in that: An activated carbon layer (10) is provided on the top surface of the gas collecting plate (3).

3. The pressure equalization distribution structure of a multi-stage adsorption bed according to claim 2, characterized in that: The adsorption tank (1) has a molecular sieve layer (11) on the side near the activated carbon layer (10).

4. The pressure equalization distribution structure of a multi-stage adsorption bed according to claim 3, characterized in that: An active alumina layer (12) is provided inside the adsorption tank (1) on the side close to the molecular sieve layer (11).

5. The pressure equalization distribution structure of a multi-stage adsorption bed according to claim 4, characterized in that: The top of the adsorption tank (1) is provided with a silica gel layer (13) on the side near the active alumina layer (12).

6. The pressure equalization distribution structure of a multi-stage adsorption bed according to claim 5, characterized in that: An exhaust pipe (14) is fixedly installed at the top of the adsorption tank (1), a fixed frame (15) is fixedly installed at the outer end of the adsorption tank (1), and a support leg (16) is fixedly installed at the bottom of the outer end of the fixed frame (15).

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