Multifunctional fractionating tower

Abstract

The utility model relates to the technical field related to air treatment, one embodiment of the utility model provides a multifunctional fractionating tower which comprises a tower body and a top cover, the top cover is arranged at the top of the tower body, a condensed gas inlet pipe and a liquid nitrogen inlet pipe are arranged on the outer wall of the tower body, a fractionating treatment assembly is arranged in the tower body, a liquid nitrogen treatment assembly is arranged on the tower body, and the liquid nitrogen treatment assembly is arranged on the tower body. The fractionation treatment assembly comprises a plurality of tower plates which are sequentially arranged at the two ends of the inner wall of the tower body downwards, flow distribution plates are arranged on the side surfaces of the tower plates, and a plurality of flow distribution grooves are formed in the surfaces of the tower plates. According to the technical scheme, the technical problems that in the prior art, a traditional fractionating tower is poor in performance in the aspect of energy consumption, a large amount of energy needs to be consumed in the air treatment process, the energy utilization efficiency of the fractionating tower is low, and consequently the production cost is high are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of air treatment, in particular, to a multifunctional fractionating column. BACKGROUND

[0002] In the field of air treatment, the performance and function of the fractionating column as a key equipment directly affect the effect and quality of air treatment.

[0003] Traditional fractionating columns perform poorly in terms of energy consumption, and a large amount of energy is consumed in the air treatment process, and the energy utilization efficiency of the fractionating column is low, resulting in high production costs. For example, in large-scale air separation plants for producing oxygen and nitrogen, the high energy consumption of traditional fractionating columns greatly increases the operating costs of enterprises and puts them at a disadvantage in market competition.

[0004] Therefore, improvements are made to address the above problems. CONTENT OF THE INVENTION

[0005] To overcome the above-mentioned defects, embodiments of the present disclosure provide a multifunctional fractionating column, which solves the technical problem of the poor performance of traditional fractionating columns in terms of energy consumption, the need for a large amount of energy consumption in the air treatment process, and the low energy utilization efficiency of the fractionating column, resulting in high production costs.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a multifunctional fractionating column, comprising:

[0007] a column body and a top cover, the top cover being arranged on the top of the column body;

[0008] a condensed gas inlet pipe and a liquid nitrogen inlet pipe, the condensed gas inlet pipe and the liquid nitrogen inlet pipe being arranged on the outer wall of the column body;

[0009] a fractionating treatment assembly arranged inside the column body;

[0010] a liquid nitrogen treatment assembly arranged on the column body;

[0011] The fractionating treatment assembly comprises a plurality of trays, the trays being arranged in sequence on the inner wall of the column body, the side surface of the tray being provided with a flow distribution plate, and the surface of the tray being provided with a plurality of flow distribution grooves.

[0012] As a further technical solution, one end of the flow distribution groove is an open structure, the bottom surface of the tray is an inner recess structure, and a plurality of air holes are arranged on both sides of the flow distribution groove, and the air holes are in communication with the inner recess of the bottom surface of the tray.

[0013] As a further technical solution, the inner surface of the flow distribution groove is an inclined structure surface, a slow flow blocking block is arranged at one end of the flow distribution groove, the slow flow blocking block is located at the edge of one end of the flow distribution groove, and gaps are left between the two ends of the slow flow blocking block and the two side surfaces in the flow distribution groove.

[0014] As a further technical solution, the liquid nitrogen treatment assembly comprises an inner pipeline fixed to the inner wall of the tower body, the inner pipeline is in communication with the liquid nitrogen inlet pipe, and a plurality of liquid outlet holes are arranged on the bottom surface of the inner pipeline.

[0015] As a further technical solution, a collecting plate is arranged at the bottom of the tower body, a collecting cover is arranged on the outer surface of the tower body, and a liquid nitrogen discharge pipe is arranged at the bottom of the collecting cover.

[0016] As a further technical solution, the collecting plate is fixed at an inclined angle, and the collecting cover is located at the lowest position of the collecting plate.

[0017] As a further technical solution, the top cover and the tower body are fixedly connected through bolts.

[0018] As a further technical solution, the inner pipeline is in the form of an arc-shaped transition structure and is attached to the inner wall of the tower body.

[0019] The embodiments of the present disclosure have the following beneficial effects:

[0020] 1. In the present disclosure, the fractionation treatment assembly, the tower plate, the flow distribution plate, the flow distribution groove, the air hole and the slow flow blocking block are cooperatively designed to make the liquid nitrogen fully contact with the gas, prolong the contact time, improve the fractionation efficiency, optimize the liquid nitrogen flow path through the inclined flow distribution groove and the slow flow blocking block, improve the energy utilization efficiency, reduce the energy consumption and production cost.

[0021] 2. In the present disclosure, the liquid nitrogen treatment assembly is arranged, the inner pipeline is in communication with the liquid nitrogen inlet pipe and the liquid outlet holes are arranged on the bottom surface, so that the liquid nitrogen is uniformly dispersed on the tower plate, the inner pipeline in the form of an arc-shaped transition structure is attached to the inner wall of the tower body to make the liquid nitrogen distribution more uniform, and the arrangement of the collecting plate and the collecting cover can effectively collect the liquid nitrogen, avoid the waste of the liquid nitrogen and ensure the efficient treatment of the liquid nitrogen in the fractionation tower, thereby improving the overall operation stability. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and the drawings without creating any creative labor.

[0023] Figure 1 is a structural schematic diagram in one embodiment of the present disclosure;

[0024] Figure 2 is an axonometric view of the present disclosure;

[0025] Figure 3 is an axonometric sectional view of the present disclosure;

[0026] Figure 4 is another axonometric sectional view of the present disclosure from a different perspective;

[0027] In the figure: 1, tower body; 2, top cover; 3, condensed gas inlet pipe; 4, liquid nitrogen inlet pipe; 5, fractional distillation processing assembly; 5-1, tower plate; 5-2, flow distribution plate; 5-3, flow distribution groove; 5-4, gas hole; 5-5, flow resistance block; 6, liquid nitrogen processing assembly; 6-1, inner pipe; 6-2, liquid outlet hole; 6-3, concentration plate; 6-4, collection cover; 6-5, liquid nitrogen outlet pipe. DETAILED DESCRIPTION

[0028] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0029] In order to make the drawing simple, only the parts related to the disclosure are schematically shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0031] In the present disclosure, unless explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0032] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship shown in the drawings, are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0033] In addition, in the description of the present application, the terms "first", "second", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] As shown in Figures 1-4 , which shows a multifunctional fractionating column in an embodiment of the present disclosure, comprising:

[0035] The column body 1 and the top cover 2, the top cover 2 is arranged on the top of the column body 1;

[0036] Condensed gas inlet pipe 3 and liquid nitrogen inlet pipe 4, condensed gas inlet pipe 3 and liquid nitrogen inlet pipe 4 are arranged on the outer wall of the column body 1;

[0037] Fractionation processing assembly 5, fractionation processing assembly 5 is arranged inside the column body 1;

[0038] Liquid nitrogen processing assembly 6, liquid nitrogen processing assembly 6 is arranged on the column body 1;

[0039] The fractionation processing assembly 5 comprises a plurality of trays 5-1, the trays 5-1 are arranged in turn on the inner wall of the column body 1 at both ends, the side surface of the tray 5-1 is provided with a flow distribution plate 5-2, a plurality of flow distribution grooves 5-3 are opened on the surface of the tray 5-1, one end of the flow distribution groove 5-3 is of opening structure, the bottom surface of the tray 5-1 is of concave structure, a plurality of air holes 5-4 are opened on both sides in the flow distribution groove 5-3, the air holes 5-4 are communicated with the concave part of the bottom surface of the tray 5-1, the inner surface of the flow distribution groove 5-3 is of inclined structure, a slow flow blocking block 5-5 is arranged at one end of the flow distribution groove 5-3, the slow flow blocking block 5-5 is located at the edge of one end of the flow distribution groove 5-3, and gaps are left between the slow flow blocking block 5-5 and the inner side surfaces of the flow distribution groove 5-3 at both ends.

[0040] In some examples, in order to achieve the effect of efficient energy-saving fractionation treatment, the fractionation treatment assembly 5 is designed, which includes a plurality of tower plates 5-1 arranged in sequence downward on the inner wall of the tower body 1, the side surface of the tower plate 5-1 is provided with a flow distribution plate 5-2, a plurality of shunt grooves 5-3 with an open structure at one end are opened on the surface, liquid nitrogen also flows downward in the shunt groove 5-3, the bottom surface of the tower plate 5-1 is a concave structure, the shunt groove 5-3 is opened on both sides and is communicated with the concave part of the bottom surface of the tower plate 5-1, the gas holes 5-4 are opened on both sides of the shunt groove 5-3, the gas holes 5-4 are in contact with the flowing liquid nitrogen, the inner surface of the shunt groove 5-3 is an inclined structure, and the slow-flow blocking block 5-5 is arranged at the edge of the inner end of the shunt groove 5-3, and the slow-flow blocking block 5-5 is arranged at the edge of the inner end of the shunt groove 5-3. The gap between the two ends of the slow-flow blocking block 5-5 and the two side surfaces of the shunt groove 5-3 slows down the flow speed of the liquid nitrogen and improves the effect.

[0041] As shown in Figures 1-4 , the liquid nitrogen treatment assembly 6 includes an inner pipeline 6-1, the inner pipeline 6-1 is fixed on the inner wall of the tower body 1, the inner pipeline 6-1 is communicated with the liquid nitrogen inlet pipe 4, a plurality of liquid outlet holes 6-2 are opened on the bottom surface of the inner pipeline 6-1, a concentration plate 6-3 is arranged on the inner bottom of the tower body 1, a collection cover 6-4 is arranged on the outer surface of the tower body 1, and a liquid nitrogen discharge pipe 6-5 is arranged on the bottom of the collection cover 6-4.

[0042] In some examples, in order to achieve the effect of sufficient liquid nitrogen treatment, the liquid nitrogen treatment assembly 6 is designed, which includes an inner pipeline 6-1 fixed on the inner wall of the tower body 1 and communicated with the liquid nitrogen inlet pipe 4, a plurality of liquid outlet holes 6-2 are opened on the bottom surface of the inner pipeline 6-1, the liquid nitrogen is dispersed and flowed into the surface of the tower plate 5-1, the flow speed is lowered while the effect is maintained, the concentration plate 6-3 is arranged on the inner bottom of the tower body 1, and the collection cover 6-4 connected with the liquid nitrogen discharge pipe 6-5 is arranged on the outer surface of the tower body 1, so as to concentrate and collect the liquid nitrogen.

[0043] For example, as shown in Figure 3 , the concentration plate 6-3 is fixed at an inclined angle, and the collection cover 6-4 is located at the lowest position of the concentration plate 6-3.

[0044] In some examples, by means of the inclined angle, the circular tower body 1 structure can better flow all the liquid nitrogen into the collection cover 6-4.

[0045] For example, as shown in Figure 1 , the top cover 2 and the tower body 1 are fixedly connected by bolts.

[0046] In some examples, the bolt connection mode facilitates the disassembly and maintenance of the top cover 2.

[0047] For example, as shown in Figure 3 , the inner pipeline 6-1 is arc-shaped and is attached to the inner wall of the tower body 1.

[0048] In some examples, the arc-shaped structure is attached to the inner wall of the tower body 1, so that the liquid nitrogen flows downward along the arc-shaped structure of the tower body 1, and the distribution effect is better.

[0049] In actual use: The condensed gas enters the tower body 1 through the condensed gas inlet pipe 3, the liquid nitrogen flows into the inner pipeline 6-1 through the liquid nitrogen inlet pipe 4, and then is uniformly distributed on the tower plate 5-1 through the liquid outlet hole 6-2 at the bottom of the inner pipeline 6-1. The liquid nitrogen flows in the flow distribution groove 5-3 of the tower plate 5-1, the flow speed is slowed down by the flow resistance block 5-5, the liquid nitrogen flows more smoothly due to the inclined structure of the flow distribution groove 5-3, the gas holes 5-4 allow the gas to fully contact with the liquid nitrogen, the flow distribution plate 5-2 on the side surface of the tower plate 5-1 further uniformly distributes the liquid, and finally the liquid nitrogen flows to the collecting plate 6-3 at the bottom of the tower body 1, flows into the collecting cover 6-4 along the inclined surface of the collecting plate 6-3, and is discharged through the liquid nitrogen discharge pipe 6-5.

[0050] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure, not to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, which should be covered in the scope of the claims of the present disclosure.

Claims

1. A multifunctional fractionating column, characterized by, The utility model relates to a tower body (1) and top cover (2), top cover (2) is arranged at tower body (1) top, condensing gas inlet pipe (3) and liquid nitrogen liquid inlet pipe (4), condensing gas inlet pipe (3) with liquid nitrogen liquid inlet pipe (4) are both arranged at tower body (1) outer wall, fractionation processing assembly (5) is arranged in tower body (1) inside, liquid nitrogen processing assembly (6) is arranged on tower body (1), fractionation processing assembly (5) includes several tower plate (5-1), tower plate (5-1) is sequentially arranged in the wall both ends in tower body (1), the side surface of tower plate (5-1) is provided with flow distribution plate (5-2), and the surface of tower plate (5-1) is provided with several flow distribution grooves (5-3). The utility model relates to a tower body (1) and top cover (2), top cover (2) is arranged at tower body (1) top, condensing gas inlet pipe (3) and liquid nitrogen liquid inlet pipe (4), condensing gas inlet pipe (3) with liquid nitrogen liquid inlet pipe (4) are both arranged at tower body (1) outer wall, fractionation processing assembly (5) is arranged in tower body (1) inside, liquid nitrogen processing assembly (6) is arranged on tower body (1), fractionation processing assembly (5) includes several tower plate (5-1), tower plate (5-1) is sequentially arranged in the wall both ends in tower body (1), the side surface of tower plate (5-1) is provided with flow distribution plate (5-2), and the surface of tower plate (5-1) is provided with several flow distribution grooves (5-3). One end of the flow distribution groove (5-3) is an open structure, the bottom surface of the tower plate (5-1) is an inwardly recessed structure, and a plurality of air holes (5-4) are formed on both sides of the flow distribution groove (5-3). The inner surface of the flow distribution groove (5-3) is an inclined structure, a slow-flow blocking block (5-5) is arranged at one end of the flow distribution groove (5-3), the slow-flow blocking block (5-5) is located at the edge of one end of the flow distribution groove (5-3), and gaps are left between the slow-flow blocking block (5-5) and the inner surface of the flow distribution groove (5-3). The liquid nitrogen processing assembly (6) includes an inner pipeline (6-1) fixed to the inner wall of the tower body (1), the inner pipeline (6-1) is connected to the liquid nitrogen liquid inlet pipe (4), and a plurality of liquid outlet holes (6-2) are formed on the bottom surface of the inner pipeline (6-1). A collecting plate (6-3) is arranged on the inner bottom of the tower body (1), a collecting cover (6-4) is arranged on the outer surface of the tower body (1), and a liquid nitrogen discharge pipe (6-5) is arranged at the bottom of the collecting cover (6-4).

2. A multi-functional fractionating column according to claim 1, characterized by The collecting plate (6-3) is fixed at an inclined angle, and the collecting cover (6-4) is located at the lowest position of the collecting plate (6-3).

3. A multi-functional fractionating column according to claim 2, wherein The top cover (2) and the tower body (1) are fixedly connected by bolts.

4. The multi-functional fractionating column according to claim 1, wherein The inner pipeline (6-1) is arc-shaped and transitions to the inner wall of the tower body (1).

5. A multi-functional fractionating column according to claim 4, wherein ​ 6. A multi-functional fractionating column according to claim 5, wherein ​ 7. A multi-functional fractionating column according to claim 1, wherein ​ 8. A multi-functional fractionating column according to claim 4, wherein ​

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