CN219482138U - Liquid escape prevention lift cylinder device and absorption tower - Google Patents

Abstract

The utility model relates to an air lift cylinder device capable of preventing liquid from escaping and an absorption tower. The air lift cylinder device for preventing liquid from escaping comprises a bottom plate, an air lift cylinder body, an air lift cap and a silk screen foam removing piece. The bottom plate is provided with an air lifting hole. The bottom end of the air lifting cylinder body is fixed on the bottom plate and communicated with the air lifting hole. The air lifting cap is arranged at the top end of the air lifting cylinder body and is arranged at intervals with the end part of the top end of the air lifting cylinder body. The orthographic projection of the lift cap on the bottom plate completely covers the orthographic projection of the lift cylinder on the bottom plate. The silk screen foam removing piece is arranged along the circumference of the top end opening of the air lift cylinder body and is connected between the top end of the air lift cylinder body and the inner wall of the air lift cap. The silk screen foam removing piece is used for filtering liquid foam. The gas lift cylinder device capable of preventing liquid from escaping solves the problem that the absorbent is large in loss due to the fact that liquid enters the gas lift cylinder body in the traditional gas lift cylinder device, can effectively reduce the loss of the absorbent in the using process of the absorption tower, and further can reduce the using cost of the absorption tower.

Description

Liquid escape prevention lift cylinder device and absorption tower

Technical Field

The utility model relates to the technical field of petrochemical separation, in particular to an air lift cylinder device capable of preventing liquid from escaping and an absorption tower.

Background

The absorption tower is to absorb and dissolve the target substance in the gas phase by using the absorbent to achieve the effect of recovering the target substance, and usually adopts a packed tower to achieve the absorption purpose by primary, secondary or even more stages of absorption. The conventional air lift device is shown in fig. 1, and is composed of a base plate 10, an air lift cylinder 20 with its bottom end fixed on the base plate 10, an air lift cover plate 30, etc., wherein the air lift cover plate 30 is arranged right above the air lift cylinder 20 and is spaced from the top end of the air lift cylinder 20, liquid is sprayed onto the air lift cover plate 30, flows down along the edge of the air lift cover plate 30, and often liquid foam is entrained into the air lift cylinder, resulting in absorbent leakage.

For example, in the CCUS (carbon sequestration utilization sequestration) technology, carbon dioxide emitted during the production process needs to be purified and then put into a new production process. The carbon capture is an important link in the carbon dioxide purification process, and the common means is to absorb carbon dioxide in gas by using an absorbent, and the conventional gas lift cylinder device is easy to cause absorbent loss due to multi-stage absorption. Therefore, the conventional lift cylinder device has the problem of absorbent loss, so that the loss of the absorbent is large, and the use cost of the absorption tower is high.

Disclosure of Invention

Accordingly, it is necessary to provide a liquid escape preventing gas lift cylinder device and an absorption tower capable of reducing the loss of the absorbent, aiming at the problem that the conventional gas lift cylinder device is liable to cause the loss of the absorbent.

An air lift device for preventing liquid from escaping, comprising:

the bottom plate is provided with an air lifting hole;

the air lifting cylinder body is of a hollow cylindrical structure with two open ends; the bottom end of the air lifting cylinder body is fixed on the bottom plate and is communicated with the air lifting hole;

the air lifting cap is arranged at the top end of the air lifting cylinder body and is arranged at intervals with the end part of the top end of the air lifting cylinder body; the orthographic projection of the gas-lift cap on the bottom plate completely covers the orthographic projection of the gas-lift cylinder on the bottom plate;

the silk screen foam removing piece is arranged along the circumferential direction of the opening at the top end of the air lift cylinder body and is connected between the top end of the air lift cylinder body and the inner wall of the air lift cap; the silk screen foam removing piece is used for filtering liquid foam.

In one embodiment, the lift cap is an inverted V-shaped structure with the opening facing downward.

In one embodiment, the cross-sectional shape of the lift cylinder is polygonal, and the lift cap is a pyramid-shaped structure with an opening facing downward and matching the top end of the lift cylinder.

In one embodiment, the lift cylinder is a cylindrical structure, and the lift cap is a conical structure with a downward opening.

In one embodiment, the silk screen foam removing piece is a cylindrical structure with two open ends; one end of the silk screen foam removing piece is sleeved at the top end of the air lift cylinder, and the other end of the silk screen foam removing piece extends out of the end face of the top end of the air lift cylinder along the direction away from the bottom plate and is connected with the inner wall of the air lift cap; the edge of the air lifting cap protrudes out of the outer wall of the silk screen foam removing piece.

In one embodiment, the gas lift cap comprises a cap top and a liquid blocking part which is arranged along the circumferential direction of the cap top and is connected with the edge part of the cap top; the orthographic projection of the cap top on the bottom plate completely covers the orthographic projection of the lift cylinder body on the bottom plate; the liquid blocking part is of a hollow cylindrical structure with two open ends; the silk screen foam removing piece is connected to the top end of the lift cylinder body and one end, far away from the top of the cap, of the liquid blocking part.

In one embodiment, the top end of the lift cylinder body extends into the liquid blocking part and is arranged at intervals with the inner wall of the liquid blocking part and the inner wall of the cap top; the wire mesh foam removing piece is sleeved at the top end of the air lift cylinder body and is connected with the inner wall of the liquid blocking part.

In one embodiment, the wire mesh foam remover is a wire mesh.

In one embodiment, the wire mesh foam remover is a stainless steel wire mesh.

An absorption tower comprises the liquid escape prevention lift cylinder device.

Above-mentioned anti-liquid escape's lift cylinder device and absorption tower, in the absorption tower course of working, spray liquid spray to lift on the gas cap and along the edge of gas cap down the in-process, gap between the silk screen in the silk screen foam removal spare still plays the foam removal effect when guaranteeing that gas smoothly passes through, can reduce the liquid and smuggled the probability in the lift cylinder body, prevent taking place the phenomenon of liquid escape, solved traditional lift cylinder device because the liquid gets into the lift cylinder body in cause the problem that the absorbent loss is big, so the setting of the lift cylinder device of above-mentioned anti-liquid escape can effectively reduce the loss of absorbent in the absorption tower use, and then can reduce the use cost of absorption tower.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic view of a conventional inflator device in the background of the utility model;

FIG. 2 is a schematic diagram of an embodiment of an air lift device for preventing liquid from escaping;

fig. 3 is a schematic structural view of an air lift device for preventing liquid from escaping in another embodiment of the present utility model.

Reference numerals in the detailed description indicate: 100. an air lift cylinder device for preventing liquid from escaping; 110. a bottom plate; 111. an ascending air hole; 120. an air lifting cylinder; 130. an air lifting cap; 131. a crown; 132. a liquid blocking part; 140. a wire mesh foam removing member.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements or one or more intervening elements may also be present.

Where the terms "comprising," "having," and "including" are used herein, another component may also be added unless explicitly defined as such, e.g., "consisting of … …," etc. Unless mentioned to the contrary, singular terms may include plural and are not to be construed as being one in number.

Further, the drawings are not 1:1, and the relative dimensions of the various elements are drawn by way of example only in the drawings and are not necessarily drawn to true scale.

The utility model provides an air lift cylinder device capable of preventing liquid from escaping and an absorption tower. The absorption tower comprises the liquid escape prevention air lift cylinder device.

It should be noted that, the above-mentioned absorption tower is not only used for carbon capture in the CCUS (carbon sequestration utilization sequestration) technology and for sulfur dioxide separation in flue gas, as described in the background art, but also used for absorbing and purifying waste gas of organic solvents such as benzene, alcohol, ketone, grease, gasoline, etc.

Fig. 2 and 3 show the structures of the liquid escape preventing lift cylinder device in the two embodiments of the present utility model, respectively. For convenience of explanation, the drawings show only structures related to the embodiments of the present utility model.

Referring to fig. 2 and 3, an air lift device 100 for preventing liquid from escaping according to a preferred embodiment of the present utility model includes a bottom plate 110, an air lift body 120, an air lift cap 130 and a wire mesh foam removing member 140.

The bottom plate 110 is provided with an air lifting hole 111. In the absorption tower, the bottom plate 110 can be used as a partition plate, a liquid collecting plate, a tower plate and the like in the tower body, and the name and the structure of the bottom plate 110 are different according to the structure types of the absorption tower.

The lift cylinder 120 has a hollow cylindrical structure with both ends open. The bottom end of the lift cylinder 120 is fixed to the base plate 110 and communicates with the lift holes 111. When the absorber is located in a horizontal plane, the lift cylinder 120 is located above the bottom plate 110, so that gas below the bottom plate 110 can enter the lift cylinder 120 through the lift holes 111.

The lift cap 130 is provided at the top end of the lift cylinder 120 and is spaced apart from the end of the top end of the lift cylinder 120. The orthographic projection of the lift cap 130 onto the base plate 110 completely covers the orthographic projection of the lift cylinder 120 onto the base plate 110. Thus, when the absorption tower is located on the horizontal plane, the lift cap 130 can completely block the top end opening of the lift cylinder 120 in the vertical direction; and the gas in the lift cylinder 120 may flow to the outside of the lift cylinder 120 through the gap between the top end of the lift cylinder 120 and the lift cap 130.

The wire mesh foam removing member 140 is disposed along the circumferential direction of the top opening of the lift cylinder 120 and is connected between the top end of the lift cylinder 120 and the inner wall of the lift cap 130. As such, the wire mesh foam removing member 140 is used to attach the lift cap 130 to the top end of the lift cylinder 120. Specifically, the wire mesh foam removing member 140 has slits formed between the wires. The wire mesh foam removing member 140 is used for filtering the liquid foam.

In the operation process of the absorption tower, liquid is sprayed above the air lift cylinder device 100 for preventing liquid from escaping, the liquid falls on the air lift cap 130, and in the process of flowing down along the edge of the air lift cap 130, gaps between the silk screens in the silk screen foam removing member 140 can play a role in eliminating liquid foam formed at the edge of the air lift cap 130 (namely, foam removing effect) while ensuring smooth gas passing, the probability that the liquid is entrained into the air lift cylinder 120 is greatly reduced, the phenomenon of liquid escaping is effectively prevented, and the problem that the absorber loss is large due to the fact that the liquid enters the air lift cylinder 120 in the traditional air lift cylinder device is solved.

In one embodiment of the present utility model, the lift cap 130 is an inverted V-shaped structure with the opening facing downward. The lift cap 130 may be formed by welding two inclined plates, or may be formed by bending a whole plate, or may be formed by other processing methods, so long as the vertical cross-sectional shape of the lift cap 130 is ensured to be inverted V-shaped. In this way, during operation of the absorber, the liquid sprayed from above can quickly flow down from the lift cap 130.

In another embodiment of the utility model, the cross-sectional shape of the lift cylinder 120 is polygonal. The lift cap 130 is a pyramid-shaped structure that opens downward and mates with the top end of the lift cylinder 120. Specifically, the cross-sectional shape of the lift cap 130 is the same as the cross-sectional shape of the lift cylinder 120. Thus, after the liquid is sprayed from above during operation of the absorption tower, the liquid rapidly flows down each inclined surface of the gas-lift cap 130.

In yet another embodiment of the present utility model, the lift cylinder 120 is a cylindrical structure. The lift cap 130 has a conical shape with a downward opening. Thus, the liquid is sprayed from above and then rapidly flows down along the side of the hood 130 during operation of the absorber.

The structure of the lift cap 130 in the above three embodiments enables the liquid sprayed on the lift cap 130 to flow down rapidly under the action of the gravity of the liquid, so as to reduce the amount of liquid foam formed at the edge of the lift cap 130, and further reduce the probability of liquid escape.

Of course, in other embodiments, the lift cap 130 may have a flat plate structure or other shape, so long as it can block the liquid from directly entering the lift cylinder 120 from the top end of the lift cylinder 120.

Referring to fig. 2 again, specifically, the wire mesh foam removing member 140 has a cylindrical structure with two open ends. One end of the wire mesh foam removing member 140 is sleeved at the top end of the lift cylinder 120, and the other end extends out of the end surface of the top end of the lift cylinder 120 along the direction away from the bottom plate 110 and is connected with the inner wall of the lift cap 130. The edge of the rising cap 130 protrudes from the outer wall of the wire mesh foam removing member 140. More specifically, the cross-sectional shape of the wire mesh foam removing member 140 is the same as the cross-sectional shape of the lift cylinder 120. Thus, when the lift cap 130 has an inverted V-shaped, pyramid-shaped or cone-shaped structure with the opening facing downward, the end of the wire mesh foam removing member 140 remote from the end of the base plate 110 is connected to the bottom surface of the lift cap 130.

Referring again to fig. 3, in some embodiments, the lift cap 130 includes a cap top 131 and a liquid blocking portion 132 disposed along a circumferential direction of the cap top 131 and connected to an edge portion of the cap top 131. The orthographic projection of cap 131 onto base plate 110 completely covers the orthographic projection of lift cylinder 120 onto base plate 110. The liquid blocking portion 132 has a hollow cylindrical structure with both ends open. The wire mesh foam removing member 140 is connected to the top end of the lift cylinder 120 and one end of the liquid blocking portion 132 away from the crown 131. The liquid blocking portion 132 mainly serves to block liquid and liquid foam.

During operation of the absorber, the liquid blocking portion 132 may block liquid flowing down from the cap top 131 to reduce liquid or liquid foam that is sputtered onto the wire mesh demister 140, further reducing the probability of liquid being entrained into the lift cylinder 120.

Further, in some embodiments, the top end of the lift cylinder 120 extends into the liquid blocking portion 132 and is spaced from the inner wall of the liquid blocking portion 132 and the inner wall of the cap 131. The wire mesh foam removing member 140 is sleeved on the top end of the lift cylinder 120 and is connected to the inner wall of the liquid blocking portion 132. In order to make the structure of the lift cylinder device 100 for preventing liquid from escaping more compact and smaller, the upper end surface of the wire mesh foam removing member 140 is flush with the end surface of the top end of the lift cylinder 120, and the lower end surface of the wire mesh foam removing member 140 is flush with the end surface of the liquid blocking portion 132 away from one end of the cap top 131.

In this way, the liquid blocking portion 132 also plays a role in shielding the screen foam removing member 140, so that a curved airflow channel is formed between the lift cylinder 120 and the lift cap 130, and a path for liquid to enter the lift cylinder 120 is curved, so that the probability of liquid escaping into the lift cylinder 120 is further reduced.

To ensure the robustness of the wire mesh foam removal member 140, in some embodiments, the wire mesh foam removal member 140 is a wire mesh. Specifically, the wire mesh foam removing member 140 is a stainless steel wire mesh. The wire mesh foam removing member 140 is arranged as a stainless steel wire mesh, so that the probability of corrosion damage of the wire mesh foam removing member 140 in the use process can be reduced, and the service life of the wire mesh foam removing member 140 can be prolonged further.

In other embodiments, the wire mesh foam removing member 140 may be a wire mesh structure made of other materials, so long as the connection between the lift cylinder 120 and the lift cap 130 and the foam removing effect can be achieved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An air lift cylinder device for preventing liquid from escaping, comprising:

the bottom plate is provided with an air lifting hole;

the air lifting cylinder body is of a hollow cylindrical structure with two open ends; the bottom end of the air lifting cylinder body is fixed on the bottom plate and is communicated with the air lifting hole;

the air lifting cap is arranged at the top end of the air lifting cylinder body and is arranged at intervals with the end part of the top end of the air lifting cylinder body; the orthographic projection of the gas-lift cap on the bottom plate completely covers the orthographic projection of the gas-lift cylinder on the bottom plate;

the silk screen foam removing piece is arranged along the circumferential direction of the opening at the top end of the air lift cylinder body and is connected between the top end of the air lift cylinder body and the inner wall of the air lift cap; the silk screen foam removing piece is used for filtering liquid foam.

2. The liquid escape prevention lift cylinder device of claim 1 wherein the lift cap is of inverted V-shaped configuration with an opening facing downward.

3. The liquid escape prevention lift cylinder device of claim 1 wherein the lift cylinder has a polygonal cross-sectional shape and the lift cap has a pyramid-shaped configuration with an opening facing downward and matching the top end of the lift cylinder.

4. The liquid escape preventing lift cylinder device of claim 1 wherein the lift cylinder body has a cylindrical configuration and the lift cap has a conical configuration with a downward opening.

5. The liquid escape prevention lift cylinder device according to any one of claims 2 to 4, wherein said wire mesh foam removing member has a cylindrical structure with both ends open; one end of the silk screen foam removing piece is sleeved at the top end of the air lift cylinder, and the other end of the silk screen foam removing piece extends out of the end face of the top end of the air lift cylinder along the direction away from the bottom plate and is connected with the inner wall of the air lift cap; the edge of the air lifting cap protrudes out of the outer wall of the silk screen foam removing piece.

6. The liquid escape prevention lift cylinder device according to claim 1, wherein the lift cap comprises a cap top and a liquid blocking part arranged along a circumferential direction of the cap top and connected with an edge part of the cap top; the orthographic projection of the cap top on the bottom plate completely covers the orthographic projection of the lift cylinder body on the bottom plate; the liquid blocking part is of a hollow cylindrical structure with two open ends; the silk screen foam removing piece is connected to the top end of the lift cylinder body and one end, far away from the top of the cap, of the liquid blocking part.

7. The liquid escape prevention lift cylinder device of claim 6, wherein a top end of the lift cylinder body extends into the liquid blocking portion and is spaced from an inner wall of the liquid blocking portion and an inner wall of the cap top; the silk screen foam removing piece is sleeved at the top end of the lift cylinder body and is connected with the inner wall of the liquid blocking part.

8. The liquid escape prevention lift cylinder device of claim 1 wherein the wire mesh foam removing member is a wire mesh.

9. The liquid escape prevention lift cylinder device of claim 8 wherein the wire mesh foam removal member is a stainless steel wire mesh.

10. An absorption tower comprising a liquid escape prevention lift cylinder device according to any one of claims 1 to 9.