CN117504841A - Adsorbent regeneration tower with interlayer space and low-temperature adsorption regeneration system - Google Patents

Abstract

The invention relates to the technical field of flue gas adsorption and purification and discloses an adsorbent regeneration tower and a low-temperature adsorption and regeneration system with an interlayer space, wherein the adsorbent regeneration tower with the interlayer space comprises a tower barrel and an interlayer part, a heating cavity and a degassing cavity are arranged in the tower barrel, a suction port communicated with the degassing cavity is arranged on the side wall of the tower barrel, an adsorbent with saturated adsorption enters the degassing cavity after being heated by the heating cavity to desorb regenerated rich gas, the regenerated rich gas is discharged through the suction port, the interlayer part is arranged in the degassing cavity, the interlayer part is provided with an interlayer space and a runner, the runner is used for allowing the adsorbent to flow from the upper part of the interlayer space to the lower part of the interlayer space, and the interlayer space is communicated with the suction port so that the regenerated rich gas is discharged through the suction port after passing through the interlayer space. The adsorbent regeneration tower with the interlayer space can form the interlayer space in the degassing cavity, so that the adsorbent in the degassing cavity can be uniformly sucked, and the suction effect in the degassing cavity is improved.

Description

Adsorbent regeneration tower with interlayer space and low-temperature adsorption regeneration system

Technical Field

The invention relates to the technical field of flue gas adsorption and purification, in particular to an adsorbent regeneration tower with interlayer space and a low-temperature adsorption and regeneration system.

Background

The flue gas adsorption purification is a common flue gas purification mode, wherein pollutant components are removed from flue gas by using an adsorbent in an adsorption tower, and the adsorbent in adsorption saturation is regenerated to restore the activity of the adsorbent after the adsorbent is deactivated so as to realize recycling.

In the related art, regeneration of an adsorbent is generally performed by heating the adsorbent in a regeneration tower to regenerate and desorb a contaminant component from the adsorbent and form a regenerated rich gas rich in contaminants (for example, nitrogen oxides), and sucking the regenerated rich gas from the regeneration tower through a suction port provided in the regeneration tower. In the related art, the effect of discharging the regenerated rich gas from the regeneration tower is poor, so that the desorbed regenerated rich gas may not be well separated from the adsorbent, and there is a need for improvement.

Disclosure of Invention

The present invention has been made based on the findings and knowledge of the inventors regarding the following facts and problems:

in the related art, the adsorbent is heated in a regeneration tower to regenerate and desorb a regeneration rich gas, and the regeneration rich gas is discharged from a suction port of the regeneration tower. The inventor finds that the regenerated rich gas desorbed from the adsorbent at a position far away from the suction port in the regeneration tower is difficult to be effectively sucked and separated from the adsorbent, and the regenerated rich gas easily flows out of the regeneration tower along with the adsorbent from a regenerated adsorbent outlet, so that the regeneration effect of the adsorbent is reduced, the adsorption capacity of the regenerated adsorbent is influenced, the recycling of the adsorbent is influenced, and the cost is increased.

The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides the adsorbent regeneration tower with the interlayer space, which can uniformly suck the adsorbent and improve the suction and separation effects of regenerated rich gas.

The invention also provides a low-temperature adsorption regeneration system.

The adsorbent regeneration tower with interlayer space of the present invention comprises:

the tower cylinder is internally provided with a heating cavity and a degassing cavity, the side wall of the tower cylinder is provided with a suction port communicated with the degassing cavity, and an adsorbent with saturated adsorption enters the degassing cavity after being heated by the heating cavity so that the adsorbent regenerates and desorbs regenerated rich gas, and the regenerated rich gas is discharged through the suction port; and

the separation layer component is arranged in the degassing cavity and is provided with a separation layer space and a flow passage, the separation layer space is communicated with the suction port, the separation layer space is arranged at intervals with the flow passage, the adsorbent flows from the upper part of the separation layer space to the lower part of the separation layer space through the flow passage, and the regenerated rich gas desorbed by the adsorbent is discharged from the suction port through the separation layer space.

According to the adsorbent regeneration tower with the interlayer space, the interlayer space is formed in the degassing cavity by arranging the interlayer component, in the process that the adsorbent flows downwards along the runner, regenerated rich gas desorbed by the adsorbent enters the interlayer space, and because the interlayer space is distributed at intervals relative to the runner in the horizontal cross section of the tower barrel, when the adsorbent is sucked through the suction port, a more uniform negative pressure environment can be formed in the interlayer space and the degassing cavity, so that the suction effect on the regenerated rich gas can be uniformly distributed on the whole cross section of the degassing cavity, uniform suction on the degassing cavity, namely uniform suction on the adsorbent is realized, the separation effect of the regenerated rich gas and the adsorbent is improved, the regeneration effect of the adsorbent and the adsorption capacity of the adsorbent after regeneration are favorable for recycling the adsorbent, and the cost is reduced.

Optionally, the partition member includes a plurality of blanking pipes, the blanking pipes are arranged vertically, the pipe cavities of the blanking pipes form the flow channels, at least a part of adjacent blanking pipes are arranged at intervals to form the partition space, and the upper ends of the plurality of blanking pipes are connected with each other to prevent the adsorbent from falling into the partition space outside the blanking pipes.

According to the invention, the plurality of blanking pipes are arranged at intervals, the adsorbent flows downwards through the blanking pipes, the interlayer spaces are formed between the blanking pipes, the upper ends of the blanking pipes are connected with each other to prevent the adsorbent from entering the interlayer spaces from the upper ends of the blanking pipes, therefore, the interlayer component is simple in structure, and the adsorbent layer formed on the lower side of the interlayer spaces can have larger contact area with the interlayer spaces, so that the regenerated rich gas can be separated from the adsorbent, the consistency of the interlayer spaces and the consistency of the runners can be improved, and uniform suction can be realized more conveniently.

Optionally, a first through hole is formed in the pipe wall of the blanking pipe, and the aperture of the first through hole is smaller than the particle size of the adsorbent; and/or

The pipe wall of the blanking pipe is provided with a second through hole, the axis of the second through hole is obliquely arranged relative to the axis of the blanking pipe, and the outer end of the second through hole is higher than the inner end of the second through hole; and/or

The blanking pipe is a conical pipe, and the cross section area of the blanking pipe is gradually reduced along the direction from top to bottom; and/or

The vertical height of the blanking pipe is 80mm-300mm; and/or

The distance between the adjacent blanking pipes is 200mm-550mm; and/or

The inner diameter size of the lower end of the blanking pipe is 40mm-160mm.

According to the invention, the first through hole and/or the second through hole are/is arranged on the pipe wall of the blanking pipe, so that the adsorbent can be sucked when flowing through the blanking pipe, thereby improving the separation effect and the suction effect of the regenerated rich gas, and simultaneously preventing the adsorbent from flowing into the interlayer space through the first through hole or the second through hole.

Through setting up the blanking pipe into the conical tube, the adsorbent that is convenient for lie in interlayer part top gathers the blanking pipe, moreover, when guaranteeing interlayer space and the same area of contact of adsorbent layer, can reduce the volume in interlayer space, improve regeneration tower's compactibility, can form bigger negative pressure in interlayer space under the same suction effort to further improve the suction effect.

According to the invention, through limiting the height of the blanking pipe, the distance between adjacent blanking pipes and the inner diameter dimension of the lower end of the blanking pipe, the size of the interlayer space and the size of the adsorbent material pile formed on the lower side of the blanking pipe can be determined, the volume of the interlayer space is reduced while the sufficient contact area between the interlayer space and the adsorbent stacking layer on the lower side of the interlayer space is ensured, the flow channel volume for flowing the adsorbent in the degassing cavity and the time for the adsorbent to be in the degassing cavity can meet the requirements of regeneration and desorption of the adsorbent, a negative pressure environment is formed more reliably and stably, and the suction effect of regenerated rich gas is ensured.

Optionally, the barrier component comprises:

the separation plates extend along a first direction, the first direction is orthogonal to the vertical direction, the separation plates are arranged at intervals in a second direction, the second direction is orthogonal to the first direction and the vertical direction, the flow channel is formed between the adjacent separation plates, and the separation plates are bent and arranged on the longitudinal section of the tower barrel so as to form the separation layer space at the bottom of the separation plates.

According to the invention, through the bent arrangement of the partition plates, the partition spaces are formed below each partition plate, the partition spaces below the partition plates are relatively independent, and the partition spaces are communicated with the suction port, so that the negative pressure environment of each partition space is more consistent. Because the runner between the adjacent baffle is the notch of rectangular shape, and the adsorbent flows to the baffle below and can form the layer of piling up that has certain angle of piling up, interlayer space and layer staggered arrangement of piling up to have great area of contact between messenger's interlayer space and the adsorbent, be favorable to the regeneration rich gas to escape from the adsorbent and get into interlayer space, the suction area increase to the adsorbent has improved the suction effect.

Optionally, on the longitudinal section of the tower, the partition plate is arc-shaped or inverted V-shaped; and/or

A converging cavity is arranged on the side wall of the tower barrel, and the converging cavity is communicated with the interlayer space and the suction port; and/or

The plurality of the clapboards are arranged in parallel, and the distance between the adjacent clapboards is 40mm-160mm; and/or

The dimension of the partition plate in the second direction is 200mm-450mm.

According to the invention, the partition plate is arranged in an arc shape or an inverted V shape, so that the partition plate forms a groove cavity, and the opening of the groove cavity of the partition plate faces downwards, so that an interlayer space is formed below the partition plate. Because the interlayer spaces below the partition plates are relatively independent, the converging cavity is arranged on the side wall of the tower barrel, so that air flow in each interlayer space can be converged to the suction port, and the connection of components such as a suction pipe and the suction of regenerated rich gas are facilitated.

The spacing between the adjacent partition plates can ensure that the adsorbent smoothly flows downwards from the flow channel, and can avoid incomplete suction of the adsorbent in the middle of the formed adsorbent stack caused by overlarge and overlarge thickness of the formed adsorbent stack.

Since the adsorbent flows down the flow channels and the adsorbent stacks have a stacking angle after flowing under the partition members, the width of the partition has an influence not only on the normal flow of the adsorbent but also on the space between adjacent adsorbent stacks. When the width of the separator is relatively narrow, the spacing between adjacent adsorbent stacks is small, so that the V-shaped grooves formed between adjacent adsorbent stacks are relatively small, and when the width of the separator is relatively wide, the spacing between adjacent adsorbent stacks is large, so that the V-shaped grooves formed between adjacent adsorbent stacks are relatively large. Too small V-shaped grooves easily cause small effective contact area and short contact time between the adsorbent and the interlayer space, and too large V-shaped grooves easily cause too large volume of the interlayer space to influence the suction effect.

Optionally, the barrier component comprises:

the separation pipes extend along a first direction, the first direction is orthogonal to the vertical direction, the separation pipes are arranged at intervals in a second direction, the second direction is orthogonal to the first direction and the vertical direction, the flow channels are formed between the adjacent separation pipes, the interlayer space is formed by the inner cavities of the separation pipes, and the separation pipes are provided with communication ports for enabling the regenerated rich gas to enter the interlayer space.

According to the invention, the plurality of isolation pipes are arranged at intervals, so that the inner cavity of each isolation pipe can form a relatively independent interlayer space, the interlayer space is stable, the consistency is higher, the suction passing is further improved, and the connection between the isolation pipe and the suction port is also facilitated.

Optionally, a converging cavity is arranged on the side wall of the tower barrel, and the converging cavity is communicated with the inner cavity of the isolation pipe and the suction port; and/or

The communication port is arranged on the pipe wall of the isolation pipe and is adjacent to the lower end face of the isolation pipe; and/or

The isolating pipe is a mesh pipe, meshes on the isolating pipe are the communication ports, the pore diameter of the mesh adjacent to the upper end face of the isolating pipe is smaller than the particle size of the adsorbent so as to prevent the adsorbent from entering the isolating pipe through the mesh on the upper part of the isolating pipe, and the pore diameter of the mesh adjacent to the lower end face of the isolating pipe is larger than the particle size of the adsorbent so that the adsorbent entering the inner cavity of the isolating pipe flows out through the mesh on the lower part of the isolating pipe; and/or

The plurality of isolation pipes are arranged in parallel, and the distance between every two adjacent isolation pipes is 40mm-160mm; and/or

The size of the isolation tube in the second direction is 200mm-450mm.

Because the interlayer spaces below the partition plates are relatively independent, the converging cavity is arranged on the side wall of the tower barrel, and can collect air flow in each interlayer space to the suction port, so that the suction of regenerated rich gas is facilitated, and the suction effect is improved.

According to the invention, the communication port is arranged on the pipe wall close to the lower end surface of the isolation pipe, so that the adsorbent can be prevented from entering the interlayer space, and the regenerated rich gas can enter the converging cavity through the communication port.

According to the invention, the isolation pipe is arranged as the mesh pipe, so that the communication ports are formed and distributed on the pipe wall of the isolation pipe, thereby improving the suction effect of the regenerated rich gas, and further, the adsorbent can be prevented from entering the interlayer space by limiting the aperture of the communication ports in different areas.

According to the invention, the spacing between the adjacent isolation pipes is arranged, so that the adsorbent can smoothly flow downwards from the flow channel, and the phenomenon that the adsorbent in the middle of the adsorbent stack is not thoroughly and insufficiently sucked due to overlarge and overlarge formed adsorbent stack can be avoided.

In the invention, by arranging the dimension of the isolation pipe in the second direction, namely the width dimension of the isolation pipe, the inconsistent flow velocity of the adsorbent in different areas above the isolation part can be avoided, the normal circulation of the adsorbent is ensured, the size of the interlayer space can be matched with the size of the adsorbent material pile, and the uneven suction is avoided.

Optionally, the number of the spacer members is at least two, and at least two spacer members are vertically spaced apart.

In the invention, a plurality of interlayer components are arranged, so that the adsorbent can be sucked for a plurality of times, the suction effect is improved, and the adsorbent can be mixed once after passing through the interlayer components, so that the adsorbent is balanced, and the desorption effect and the suction effect of regenerated rich gas are improved.

Optionally, the adsorbent regeneration tower with the interlayer space further comprises an inlet valve group and an outlet valve group, wherein the inlet valve group is arranged at a feed inlet at the top of the tower barrel, the inlet valve group comprises a first rotary valve and a second rotary valve which are connected in series, the outlet valve group is arranged at a discharge outlet at the bottom of the tower barrel, and the outlet valve group comprises a third rotary valve and a fourth rotary valve which are connected in series; and/or

The two ends of the tower barrel are respectively provided with a feeding cavity and a discharging cavity, and the feeding cavity and the discharging cavity are connected with an air supply assembly to respectively charge air into the feeding cavity and the discharging cavity and keep positive pressure in the feeding cavity and the discharging cavity; and/or

The tower is characterized in that the cavity of the tower barrel is further provided with a preheating cavity and a cooling cavity, the preheating cavity is arranged on the upper side of the heating cavity to preheat the adsorbent which enters the heating cavity and is saturated in adsorption, and the cooling cavity is arranged on the lower side of the degassing cavity to cool down and cool down the regenerated and desorbed adsorbent.

According to the invention, the inlet valve group and the outlet valve group can control the feed inlet and the discharge outlet so as to prevent the regeneration rich gas from overflowing from the feed inlet and the discharge outlet.

In the invention, the feeding cavity and the discharging cavity can form positive pressure to prevent the regenerated rich gas from diffusing to the two ends of the tower, so that the regenerated rich gas is converged towards the degassing cavity, and the suction effect on the regenerated rich gas is improved.

The preheating cavity can preheat the adsorbent so as to reduce the load of the heating cavity, and the cooling cavity can cool the regenerated and desorbed adsorbent so as to convey the adsorbent into the adsorption tower to adsorb and purify low-temperature flue gas below room temperature.

The invention discloses a low-temperature adsorption regeneration system, which comprises:

the adsorption tower is provided with a flue gas inlet and a flue gas outlet, flue gas enters the adsorption tower from the flue gas inlet and is contacted and adsorbed with an adsorbent in the adsorption tower, and the flue gas subjected to adsorption purification is discharged from the flue gas outlet;

the regeneration tower is an adsorbent regeneration tower with an interlayer space, is connected with the adsorption tower and is used for regenerating the adsorption saturated adsorbent discharged by the adsorption tower and sending the regenerated adsorbent back into the adsorption tower;

and the cooling tower is connected with the adsorption tower and is used for cooling the flue gas to below room temperature and then conveying the flue gas to a flue gas inlet of the adsorption tower.

The low-temperature adsorption regeneration system has the advantages of good separation effect of regenerated rich gas and the adsorbent, uniform suction of the regenerated rich gas, good suction effect and improvement of the regeneration effect of the adsorbent.

The low-temperature adsorption regeneration system can cool high-temperature flue gas, so that the high-temperature flue gas is cooled to below room temperature, and the adsorbent in the adsorption tower is contacted with the flue gas in a low-temperature environment below room temperature, and compared with the adsorption effect in the high-temperature environment, the adsorption effect below room temperature can be improved by tens of times or hundreds of times, so that the purification effect of the flue gas is improved, and near zero emission can be realized.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention of an adsorbent regeneration column having a space between compartments.

FIG. 2 is a schematic view of the arrangement of barrier members within a degassing chamber in accordance with an embodiment of the invention.

FIG. 3 is a schematic top view of a barrier component according to an embodiment of the invention.

FIG. 4 is a schematic view of the structure of a barrier member disposed within a degassing chamber in accordance with yet another embodiment of the invention, particularly illustrating the barrier member being formed by a plurality of blanking tubes spaced apart.

FIG. 5 is a schematic view of the arrangement of barrier members within a degassing chamber in accordance with yet another embodiment of the invention, particularly illustrating the barrier members being formed by a plurality of arcuate barrier members spaced apart.

FIG. 6 is a schematic view of a barrier member disposed within a degassing chamber, in particular the side view of FIG. 5, in accordance with yet another embodiment of the invention.

FIG. 7 is a schematic view of the arrangement of barrier members within a degassing chamber, particularly in the top view of FIG. 5, in accordance with an embodiment of the present invention.

FIG. 8 is a schematic view of the arrangement of barrier members within a degassing chamber in accordance with an embodiment of the invention, particularly illustrating the barrier members being formed by a plurality of inverted V-shaped barrier members spaced apart.

FIG. 9 is a schematic view of the arrangement of barrier members within a degassing chamber, particularly illustrating the barrier members being formed by the spaced arrangement of a plurality of barrier tubes, in accordance with an embodiment of the present invention.

FIG. 10 is a schematic structural view of a barrier member disposed within a degassing chamber in accordance with another embodiment of the invention, particularly illustrating the placement of two barrier members within the degassing chamber.

FIG. 11 is a schematic view showing the structure of an adsorbent regeneration column having a space between compartments according to another embodiment of the present invention.

Fig. 12 is a schematic structural view of an adsorbent unit according to an embodiment of the invention.

Reference numerals:

the tower 1, the heating cavity 11, the degassing cavity 12, the suction port 13, the feeding port 14, the discharging port 15, the preheating cavity 16, the cooling cavity 17, the feeding cavity 18 and the discharging cavity 19;

the separator comprises a separator component 2, a separator space 21, a runner 22, a blanking pipe 23, a separator 24, a separator pipe 25 and a converging cavity 26.

An inlet valve bank 31, a first rotary valve 311, a second rotary valve 312, an outlet valve bank 32, a third rotary valve 321, a fourth rotary valve 322;

adsorbent 41, and gas-permeable casing 42.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

As shown in fig. 1, an adsorbent regeneration tower with a space 21 between layers according to an embodiment of the present invention includes a tower 1, and a heating chamber 11 and a degassing chamber 12 are provided in the tower 1, wherein the heating chamber 11 is used for heating an adsorbent that is saturated by adsorption to desorb the adsorbent into a regenerated rich gas rich in contaminants such as nitrogen oxides. The degassing chamber 12 is used for separation of regenerated rich gas from the adsorbent. The side wall of the tower 1 is provided with a suction port 13 communicating with the degassing chamber 12, and the suction port 13 is connected to a suction device such as a suction pump, for example, for sucking the regenerated rich gas.

The interlayer part 2 is arranged in the degassing cavity 12, and the adsorbent with saturated adsorption enters the degassing cavity 12 after being heated by the heating cavity 11.

The barrier member 2 has a barrier space 21 and a flow passage 22, the barrier space 21 and the flow passage 22 are arranged at a spacing, and the barrier space 21 communicates with the suction port 13. In the embodiment of the invention, the interlayer space 21 can also be called a temporary storage space of the regenerated rich gas, and the regenerated rich gas escape space is provided with the interlayer space 21, so that the regenerated rich gas is conveniently separated from the adsorbent, and the regenerated rich gas is conveniently pumped and discharged. The flow passage 22 is used for allowing the adsorbent to flow from above the space 21 to below the space 21, and the regenerated rich gas desorbed from the adsorbent is sucked and discharged from the suction port 13 through the space 21.

Specifically, the adsorbent is fed from the top of the tower 1, flows through the heating chamber 11 and enters the degassing chamber 12, and is heated to desorb and regenerate when flowing through the heating chamber 11, and the adsorbent regenerates and desorbs the regenerated rich gas in the degassing chamber 12, and it is to be understood that the desorption and regeneration of the adsorbent are continuous processes, so that the desorption and regeneration processes of the adsorbent can be said to be performed in the heating chamber 11 and the degassing chamber 12, and of course, the desorption and regeneration mainly is performed in the heating chamber 11. Because the suction port 13 is communicated with the interlayer space 21, through the continuous suction of the suction port 13, negative pressure is formed in the interlayer space 21, regenerated rich gas is collected from the interlayer space 21 to the suction port 13, and the interlayer space 21 is distributed in the degassing cavity, so that the negative pressure environment in the degassing cavity is distributed in the degassing cavity, and the negative pressure is not formed only at a position close to the suction port 13.

According to the adsorbent regeneration tower with the interlayer space 21, the interlayer space 21 is formed in the degassing cavity 12 through the interlayer component 2, in the adsorbent desorption regeneration process, a more uniform negative pressure environment can be formed in the degassing cavity 12 during the regeneration rich gas suction, in other words, a more uniform negative pressure environment is formed in the interlayer space 21, so that the suction effect on the regeneration rich gas can be uniformly distributed on the whole cross section of the degassing cavity 12, uniform suction on the degassing cavity 12 is realized, namely uniform suction on the adsorbent is realized, the separation effect of the regeneration rich gas and the adsorbent is improved, the regeneration effect of the adsorbent and the adsorption capacity of the adsorbent after regeneration are improved, the recycling of the adsorbent is facilitated, the cost is reduced, the suction force far away from the suction port is small, the discharge of the regeneration rich gas along with the adsorbent is caused, the desorption regeneration of the adsorbent is influenced, the desorption regeneration degree of the adsorbent is different, and the flue gas purification effect is influenced.

As shown in fig. 2-4, in some embodiments, the barrier member 2 includes a plurality of drop tubes 23, the drop tubes 23 being vertically arranged, the lumens of the drop tubes 23 forming flow channels 22, at least a portion of adjacent drop tubes 23 being spaced apart to form the barrier spaces 21, the upper ends of the plurality of drop tubes 23 being connected to one another to avoid the falling of adsorbent into the barrier spaces 21 outside of the drop tubes 23. By "at least a part of the adjacent drop tubes 23 are spaced apart from each other over the entire length to form a compartment, for example, the drop tubes are round tubes and the upper ends of the drop tubes may be connected by a connecting piece, such as a connecting plate, or alternatively, a part of the adjacent drop tubes may be spaced apart from each other to form a compartment, for example, the drop tubes may be tapered, and the upper ends of the drop tubes may be connected directly or by a connecting plate.

Through setting up many blanking pipes 23 in the interval, the adsorbent can flow down through many blanking pipes 23, forms interlayer space 21 between the blanking pipe 23, therefore, interlayer part simple structure, the adsorbent that forms in interlayer space 21 downside piles up the bed of material and interlayer space 21 has bigger area of contact to be favorable to regenerating rich gas to separate out from the adsorbent, and can improve interlayer space's uniformity and runner's uniformity, can realize even unanimous suction more conveniently.

As shown in fig. 2 and 4, the drop tube 23 may be a cylindrical tube, or a conical tube, and when the drop tube 23 is a conical tube, the cross-sectional area of the drop tube 23 gradually decreases in a direction from top to bottom, or the upper portion of the drop tube 23 is a conical tube and the lower portion is a cylindrical tube.

When the drop tube 23 is a conical tube, or the upper portion of the drop tube 23 is a conical tube, the tips of adjacent drop tubes 23 may be directly connected to each other when the drop tubes 23 are arranged. The blanking pipe 23 is a conical pipe, so that the adsorbent above the interlayer part 2 is more convenient to collect to the blanking pipe 23, and in addition, under the condition that the interlayer space 21 and the adsorbent accumulation material layer have the same contact area, the volume of the interlayer space 21 can be reduced, the compactness of the regeneration tower is improved, and under the condition that the same suction acting force is ensured, larger negative pressure can be formed in the interlayer space 21, so that the suction effect is further improved.

As shown in fig. 4, when the down pipes 23 are cylindrical pipes, the top ends of the down pipes 23 may be connected to each other through a connection plate, a plurality of down pipes 23 are positioned at the lower side of the connection plate, and the upper ports of the down pipes 23 communicate with the upper side of the connection plate so that the adsorbent accumulated above the connection plate can flow to the lower side of the partition member 2 through the down pipes 23.

In some embodiments, a first through hole is provided on the wall of the blanking pipe 23, the aperture of the first through hole is smaller than the particle size of the adsorbent, or a second through hole is provided on the wall of the blanking pipe 23, the axis of the second through hole is inclined relative to the axis of the blanking pipe 23, and the outer end of the second through hole is higher than the inner end of the second through hole.

When the first through hole is formed, the regenerated rich gas can enter the interlayer space 21 through the first through hole, the adsorbent is prevented from entering the interlayer space 21 through the first through hole, when the second through hole is formed, the axis of the second through hole is inclined relative to the axis of the blanking pipe 23, one end, located on the outer wall of the blanking pipe 23, of the second through hole is higher than one end, located on the inner wall of the blanking pipe 23, of the second through hole, and therefore the adsorbent cannot reversely enter the interlayer space 21 from the second through hole.

In the embodiment of the present invention, the first through hole and/or the second through hole are/is provided on the wall of the blanking pipe 23, so that the adsorbent can be sucked in the process of flowing through the blanking pipe 23, the suction effect is further improved, and the adsorbent can be prevented from flowing out into the interlayer space through the first through hole or the second through hole.

Optionally, when the second through hole is provided, in order to increase the sectional area of the second through hole, a fixing block may be provided on the outer wall of the blanking pipe 23, and the outer end portion of the second through hole is made to pass through the fixing block, and the fixing block may increase the length of the second through hole, and accordingly may make the height difference between both ends of the second through hole larger, so that a second through hole with a larger aperture may be provided.

In some embodiments, the height of the drop tube 23 in the vertical direction is 80mm-300mm, e.g., the height of the drop tube 23 in the vertical direction is 80mm, 120mm, 230mm, or 300mm. The vertical height of the blanking pipe 23 also determines the vertical height of the barrier member 2, and when the height of the blanking pipe 23 is smaller than 80mm, this results in the suction opening 13 being opposite to the mass of adsorbent formed below the blanking pipe 23, which mass of adsorbent during suction affects the flow of air and creates wind resistance, which results in a poor circulation of air. When the height of the blanking pipe 23 is greater than 300mm, the space occupied by the partition member 2 in the degassing chamber 12 is too large, which not only causes the space of the formed partition space 21 to be too large, resulting in too large negative pressure difference in different areas of the partition space 21, affecting the suction effect, but also causes too short residence time of the adsorbent in the degassing chamber 12, so that the adsorbent cannot be sufficiently regenerated and desorbed.

In some embodiments, the distance between adjacent drop tubes 23 is 200mm-550mm, for example, the distance between adjacent drop tubes 23 is 200mm, 280mm, 470mm or 550mm, and a plurality of drop tubes 23 may be arranged in a rectangular array, the distance between adjacent drop tubes 23 may determine not only the density of the sorbent mass formed below the drop tubes 23, but also the difference in the sorbent blanking speed above the drop tubes 23 at different distances from the drop tubes 23.

When the distance between the blanking pipes 23 is greater than 550mm, the flow rate of the adsorbent adjacent to the upper port of the blanking pipe 23 is obviously faster than the flow rate of the adsorbent farther from the upper port of the blanking pipe 23, so that the blanking of the adsorbent in the heating cavity 11 is uneven, the heating of the adsorbent is affected, and the regeneration and desorption of the adsorbent are incomplete; when the distance between the down pipes 23 is smaller than 200mm, the density of the adsorbent stacks below the down pipes 23 is higher, so that the height of the adsorbent stacks is lower, and the contact area between the adsorbent and the interlayer space 21 and the suction effect are affected.

In some embodiments, the lower end of the down pipe 23 has an inner diameter of 40mm-160mm, e.g. the lower end of the down pipe 23 has an inner diameter of 40mm, 80mm, 135mm or 160mm, and the adsorbent material flowing through the down pipe 23 to below the barrier member 2 is stacked in a conical table with the top area of the adsorbent material stack being the same as the outlet area of the lower end of the down pipe 23. When the inner diameter of the lower end of the blanking pipe 23 is smaller than 40mm, the discharged adsorbent is not smooth, the discharging of the adsorbent is affected, and when the inner diameter of the lower end of the blanking pipe 23 is larger than 160mm, the cross-sectional area of the adsorbent stack is too large, and the regenerated rich gas in the middle of the adsorbent stack is difficult to be effectively pumped.

In the embodiment of the invention, the size of the interlayer space 21 and the size of the adsorbent stack formed at the lower side of the blanking pipe 23 can be determined by limiting the height of the blanking pipe 23, the distance between adjacent blanking pipes 23 and the inner diameter of the lower end of the blanking pipe 23, so that the volume of the interlayer space 21 can be reduced while the sufficient contact area between the interlayer space 21 and the adsorbent stack layer at the lower side of the interlayer space 21 is ensured, the volume of the adsorbent flowing in the degassing cavity 12 and the time of the adsorbent in the degassing cavity 12 can meet the requirement of regeneration and desorption of the adsorbent, and the interlayer space 21 with moderate volume can stabilize the formed negative pressure environment and ensure the suction effect on regenerated rich gas.

As shown in fig. 5 to 8, in some embodiments, the barrier member 2 includes a plurality of barriers 24 extending in a first direction orthogonal to the vertical direction, the plurality of barriers 24 being disposed at intervals in a second direction orthogonal to the first direction and the vertical direction, flow passages 22 being formed between adjacent barriers 24, and the barriers 24 being disposed in a curved manner to form the barrier space 21 at the bottom of the barriers 24 in the longitudinal section of the tower 1.

That is, the partition plates 24 are arranged in a curved manner, the interlayer spaces 21 can be formed below each partition plate 24, the interlayer spaces 21 below the plurality of partition plates 24 are relatively independent, and the plurality of interlayer spaces 21 are communicated with the suction port 13, so that the negative pressure environments of the respective interlayer spaces 21 are more consistent. Because the flow channels 22 between the adjacent partition plates 24 are elongated notch, and the adsorbent flows to the lower part of the partition plates 24 to form an adsorbent material pile with a certain stacking angle, the interlayer spaces 21 and the adsorbent are staggered, so that a larger contact area is formed between the interlayer spaces and the adsorbent, the regenerated rich gas can escape from the adsorbent into the interlayer spaces, the suction area of the adsorbent is increased, and the suction effect is improved. The vertical direction in fig. 5 is vertical, the first direction is a direction orthogonal to both the vertical direction and the front-rear direction in fig. 5, i.e., the left-right direction in fig. 6 and 7, and the second direction is the front-rear direction in fig. 5, 7 and 8.

As shown in fig. 5 and 8, in some embodiments, the baffle 24 is arcuate or inverted V-shaped in longitudinal section of the tower 1.

In an embodiment of the present invention, the partition 24 may be provided in an arc shape or an inverted V shape such that the partition 24 has a groove cavity, and the opening of the groove cavity of the partition 24 is downward so as to form the interlayer space 21 below the partition 24. Therefore, the interlayer part has a simple structure, the uniformity of the interlayer space can be better ensured, and the uniformity and the suction effect of suction are further improved.

As shown in fig. 6 and 7, in some embodiments, a converging chamber 26 is provided on the side wall of the tower 1, and the converging chamber 26 communicates with the interlayer space 21 and the suction port 13.

Specifically, since the separation spaces 21 below the respective separators 24 are relatively independent, the confluence chamber 26 is provided on the side wall of the tower 1, and the confluence chamber 26 can collect the air flow in the respective separation spaces 21 to the suction port 13, facilitating connection of the suction pipe and suction of the regenerated rich gas, for example.

In some embodiments, the plurality of baffles 24 are arranged in parallel, with a spacing between adjacent baffles 24 of 40mm-160mm, for example, a spacing between adjacent baffles 24 of 40mm, 65mm, 140mm, or 160mm.

In the embodiment of the invention, the spacing between the adjacent partition plates 24 is limited, so that the adsorbent can be ensured to smoothly flow downwards along the flow channel 22, and the phenomenon that the formed adsorbent material pile is too large and too thick, so that the adsorbent in the middle of the adsorbent material pile is not thoroughly sucked can be avoided. When the interval between the adjacent partition plates 24 is smaller than 40mm, the discharged adsorbent is not smooth, the discharging of the adsorbent is affected, when the interval between the adjacent partition plates 24 is larger than 160mm, the cross-sectional area of the adsorbent stack is excessively large, and the regenerated rich gas in the middle of the adsorbent stack is difficult to be effectively pumped.

In some embodiments, the dimension of the spacer 24 in the second direction is 200mm-450mm, for example, the dimension of the spacer 24 in the second direction is 200mm, 268mm, 370mm, or 450mm.

Since the adsorbent flows down the flow channels 22 and the adsorbent stacks have a stacking angle after flowing under the partition member 2, the width of the partition 24 has an influence not only on the normal flow of the adsorbent but also on the space between adjacent adsorbent stacks. When the width of the partition 24 is less than 200mm, the partition 24 is narrower, the spacing between adjacent adsorbent stacks is small, so that the V-shaped grooves formed between adjacent adsorbent stacks are relatively smaller, and when the width of the partition 24 is greater than 450mm, the spacing between adjacent adsorbent stacks is large, so that the V-shaped grooves formed between adjacent adsorbent stacks are relatively larger. Too small V-shaped grooves can lead to small effective contact area and short contact time between the adsorbent and the interlayer space 21, regeneration rich gas is difficult to effectively complete regeneration desorption in a short time, suction of the regeneration rich gas is influenced, too large V-shaped grooves can lead to too large volume of the interlayer space 21, negative pressure environment is unstable, the difference of the negative pressure environments of different areas is relatively large, and the suction of the regeneration rich gas is incomplete.

As shown in fig. 9, in some embodiments, the barrier member 2 includes a plurality of barrier pipes 25, the barrier pipes 25 extend in a first direction orthogonal to the vertical direction, the plurality of barrier pipes 25 are disposed at intervals in a second direction orthogonal to the first direction and the vertical direction, a flow passage 22 is formed between adjacent barrier pipes 25, the inner cavities of the barrier pipes 25 form the barrier space 21, and the barrier pipes 25 are provided with communication ports for allowing the regeneration rich gas to enter the barrier space 21.

In the embodiment of the invention, the plurality of isolation pipes 25 are arranged at intervals, so that relatively independent interlayer spaces 21 can be formed in the inner cavity of each isolation pipe 25, the consistency and stability of the interlayer spaces 21 can be better realized, the connection between the isolation pipes 25 and the suction ports 13 is also facilitated, the interlayer spaces 21 formed in the isolation pipes 25, the adsorbent material pile formed after passing through the flow channels 22 can be attached to the outer wall of the isolation pipes 25, wherein the first direction is the length direction of the isolation pipes 25 in the horizontal direction, the isolation pipes 25 are arranged at intervals along the direction orthogonal to the vertical direction and the first direction, specifically, the vertical direction is the up-down direction in fig. 9, the first direction is the direction orthogonal to the front-back direction and the up-down direction in fig. 9, and the second direction is the front-back direction in fig. 9.

In some embodiments, a converging cavity 26 is provided on the side wall of the tower 1, and the converging cavity 26 is communicated with the inner cavity of the isolation tube 25 and the suction port 13. Because the interlayer spaces 21 below the partition plates 24 are relatively independent, in the embodiment of the invention, the converging cavity 26 is arranged on the side wall of the tower 1, and the converging cavity 26 can collect the air flow in the interlayer spaces 21 formed in the partition pipes 25 to the suction port 13, so that the suction of the regenerated rich gas is facilitated.

In some embodiments, the communication port is provided on the wall of the isolation tube 25 and adjacent to the lower end face of the isolation tube 25.

By arranging the communication port on the pipe wall near the lower end face of the isolation pipe 25, the adsorbent can be prevented from entering the interlayer space 21, and the regenerated rich gas can enter the confluence chamber 26 through the communication port, wherein the lower end face of the isolation pipe 25 is the wall face of the isolation pipe 25 at the lower part of the isolation pipe 25 in the longitudinal section, and the upper end face of the isolation pipe 25 is the wall face of the isolation pipe 25 at the upper part of the isolation pipe 25 in the longitudinal section.

In some embodiments, the spacer tube 25 is a mesh tube, the mesh openings on the spacer tube 25 are communication openings, the mesh openings adjacent to the upper end surface of the spacer tube 25 are smaller than the particle size of the adsorbent to prevent the adsorbent from entering the spacer tube 25 through the mesh openings on the upper portion of the spacer tube 25, and the mesh openings adjacent to the lower end surface of the spacer tube 25 are larger than the particle size of the adsorbent to allow the adsorbent entering the interior cavity of the spacer tube 25 to flow out through the mesh openings on the lower portion of the spacer tube 25.

Specifically, in the embodiment of the present invention, the isolation tube 25 is configured as a mesh tube, so that the communication openings are distributed on the wall of the isolation tube 25, thereby facilitating separation of the regenerated rich gas, improving the suction effect of the regenerated rich gas, and the regenerated rich gas regenerated and desorbed by the adsorbent in the circumferential direction of the isolation tube 25 can enter the inner cavity of the isolation tube 25 through the mesh, further, by limiting the aperture of the communication openings in different areas, the adsorbent can be prevented from entering the interlayer space 21, and even if the powder slag or the adsorbent of the tiny particles generated by abrasion enters the interlayer space 21, the adsorbent can flow out of the interlayer space 21 through the mesh adjacent to the lower end surface of the isolation tube 25.

In some embodiments, a plurality of isolation tubes 25 are arranged in parallel, with a distance between adjacent isolation tubes 25 of 40mm-160mm, such as a distance between adjacent isolation tubes 25 of 40mm, 56mm, 111mm, or 160mm.

In the embodiment of the invention, the spacing between the adjacent isolation pipes 25 is limited, so that the adsorbent can be ensured to smoothly flow downwards from the flow channel 22, and the phenomenon that the formed adsorbent material pile is too large and too thick, so that the adsorbent in the middle of the adsorbent material pile is not thoroughly sucked can be avoided. When the interval between the adjacent isolation pipes 25 is smaller than 40mm, the discharged adsorbent is not smooth, the discharging of the adsorbent is affected, when the interval between the adjacent isolation pipes 25 is larger than 160mm, the cross-sectional area of the adsorbent stack is overlarge, and the regenerated rich gas positioned in the middle of the adsorbent stack is difficult to be effectively pumped.

In some embodiments, the size of the spacer tube 25 in the second direction is 200mm-450mm, for example, the size of the spacer tube 25 in the second direction is 200mm, 261mm, 365mm, or 450mm, the second direction being the front-to-back direction in fig. 9.

It should be noted that, the second direction is the width (or radial) direction of the isolation tube 25 in the horizontal direction, and by limiting the dimension of the isolation tube 25 in the second direction, the inconsistent flow rate of the adsorbent in different areas above the isolation member can be avoided, the normal flow of the adsorbent can be ensured, and the size of the interlayer space 21 can be matched with the size of the adsorbent stack, so as to avoid uneven suction. When the size of the isolation tube 25 in the second direction is smaller than 200mm, the width of the isolation tube 25 is narrower, the interval between adjacent adsorbent piles is small, the effective contact area between the adsorbent and the interlayer space 21 is small, the contact time is short, regeneration and desorption are difficult to effectively complete in a short time, the suction of the regeneration and desorption are affected, when the width of the isolation tube 25 in the second direction is larger than 450mm, the interval between adjacent adsorbent piles is large, the volume of the interlayer space 21 is overlarge, the negative pressure environment is unstable, the difference between the negative pressure environments in different areas is relatively large, and the incomplete suction of the regeneration and the rich gas can be caused.

Alternatively, the isolation tube 25 is circular or elliptical in cross section, and when the isolation tube 25 is elliptical in cross section, the isolation tube 25 needs to have a smaller vertical height dimension than the isolation tube 25 width dimension in the second direction in the longitudinal section of the tower 1.

As shown in fig. 10, in some embodiments, the number of barrier members 2 is at least two, with at least two barrier members 2 being vertically spaced apart. The number of barrier members 2 may be two, three or five. The number of barrier members 2 can be adapted according to the dimensional space of the degassing chamber 12.

In the embodiment of the invention, the plurality of interlayer components 2 are arranged, so that the adsorbent can be sucked for a plurality of times, the suction effect is further improved, and the adsorbent can be mixed once every time the adsorbent passes through the interlayer components 2, so that the adsorbent is balanced, and the desorption effect and the suction effect of the regenerated rich gas are improved.

Alternatively, as shown in fig. 10, two barrier members 2 may be provided, and the structure of two barrier members 2 may take different forms in the above embodiment, for example, one of the barrier members 2 takes a form in which a plurality of barrier pipes 25 are disposed at intervals, and the other barrier member 2 takes a form in which a plurality of blanking pipes 23 are disposed at intervals.

As shown in fig. 11, in some embodiments, the adsorbent regeneration tower with a space between layers further includes an inlet valve group 31 and an outlet valve group 32, the inlet valve group 31 is disposed at the feed inlet 14 at the top of the tower, the inlet valve group 31 includes a first rotary valve 311 and a second rotary valve 312 connected in series, the outlet valve group 32 is disposed at the discharge outlet 15 at the bottom of the tower, and the outlet valve group 32 includes a third rotary valve 321 and a fourth rotary valve 322 connected in series.

Specifically, the first rotary valve 311 and the second rotary valve 312 can realize double blocking of the feed inlet 14, and the third rotary valve 321 and the fourth rotary valve 322 can realize double blocking of the discharge outlet 15, so that relatively independent spaces are formed in the inlet valve group 31 and the outlet valve group 32, and are not affected by environmental factors such as air pressure of the external spaces, so as to prevent the regeneration rich gas from overflowing from the feed inlet 14 and the discharge outlet 15.

As shown in fig. 11, in some embodiments, the two ends of the tower are provided with a feeding chamber 18 and a discharging chamber 19, respectively, and the feeding chamber 18 and the discharging chamber 19 are connected with an air supply assembly to charge air into the feeding chamber 18 and the discharging chamber 19, respectively, and to maintain positive pressure in both the feeding chamber 18 and the discharging chamber 19.

That is, the gas supply assembly introduces the shielding gas into the feed chamber 18 and the discharge chamber 19, and the shielding gas may be inert gas such as nitrogen, helium, etc., so that the feed chamber 18 and the discharge chamber 19 in the embodiment of the present invention can form positive pressure to prevent the regenerated rich gas from diffusing to the two ends of the tower, and can further collect the regenerated rich gas degassing chamber 12, so as to improve the suction effect on the regenerated rich gas.

Alternatively, air intake pipes may be connected to the feed chamber 18 and the discharge chamber 19 to inflate the feed chamber 18 and the discharge chamber 19, respectively.

Alternatively, when the inlet valve block 31 and the outlet valve block 32 are provided, an air intake pipe may be provided between two rotary valves in the inlet valve block 31 and the outlet valve block 32 to charge the inside of the chambers of the inlet valve block 31 and the outlet valve block 32, and when the feeding is stopped, the rotary valves near the feeding chamber 18 and the discharging chamber 19 may be kept rotating, so that the same air pressure as the inlet valve block 31 and the outlet valve block 32 may be maintained in the feeding chamber 18 and the discharging chamber 19.

Alternatively still, the inlet chamber 18, outlet chamber 19, inlet valve block 31 and outlet valve block 32 may be inflated simultaneously.

As shown in fig. 11, in some embodiments, the cavity of the tower 1 further has a preheating cavity 16 and a cooling cavity 17, the preheating cavity 16 is disposed above the heating cavity 11 to preheat the adsorbent entering the heating cavity 11 and the cooling cavity 17 is disposed below the degassing cavity 12 to cool down the regenerated and desorbed adsorbent.

Specifically, in the embodiment of the present invention, the preheating chamber 16 is used for preheating the adsorbent to reduce the load of the heating chamber 11, and the cooling chamber 17 can cool the regenerated and desorbed adsorbent, so as to convey the adsorbent to the adsorption tower to adsorb and purify the low-temperature flue gas below room temperature. The arrangement of the preheating cavity, the heating cavity and the cold area cavity can enable a plurality of temperature intervals to be formed in the tower 1 so as to conduct graded heat exchange on the adsorbent, ensure that the temperature of the adsorbent changes step by step, and enable the temperature areas to be uniform and consistent so as to improve the effect of regeneration desorption.

The low-temperature adsorption regeneration system comprises an adsorption tower, a regeneration tower and a cooling tower, wherein the adsorption tower is provided with a flue gas inlet and a flue gas outlet, flue gas enters the adsorption tower from the flue gas inlet and is contacted and adsorbed with an adsorbent in the adsorption tower, the flue gas after adsorption purification is discharged from the flue gas outlet, the regeneration tower is the adsorbent regeneration tower with an interlayer space in any embodiment, the regeneration tower is connected with the adsorption tower and is used for regenerating the adsorbent with saturated adsorption discharged from the adsorption tower and sending the regenerated adsorbent back into the adsorption tower, and the cooling tower is connected with the adsorption tower and is used for cooling the flue gas to below room temperature and then conveying the flue gas to the flue gas inlet of the adsorption tower.

The low-temperature adsorption regeneration system provided by the embodiment of the invention has the advantages of good separation effect of regenerated rich gas, uniform suction and high suction effect, so that the adsorbent is regenerated uniformly and the regeneration effect is good. In addition, the low-temperature adsorption regeneration system can cool the high-temperature flue gas, so that the high-temperature flue gas is cooled to below room temperature, the adsorbent in the adsorption tower is contacted with the flue gas in an environment below room temperature, and compared with the activity of the adsorbent in the high-temperature environment, the activity of the adsorbent below room temperature can be improved by tens of times or hundreds of times, so that the purification efficiency and effect of the flue gas can be further improved.

The low temperature in the embodiment of the invention is below room temperature, preferably below zero degrees celsius, and more preferably between-20 ℃ and-10 ℃.

The inventors found through researches that the lower the flue gas temperature is, the more favorable for adsorption purification, but the lower the flue gas temperature is, the complicated equipment structure for cooling the flue gas is caused, and the energy consumption is increased, for example, the cooling equipment, the adsorption tower and the pipeline are required to be provided with heat insulation layers, the sealing performance is required to be high, so that the cost is increased, and in addition, the condensed water is easy to appear in the adsorption tower under the condition of the too low temperature, so that the adsorption is influenced by the adhesion and blockage of the adsorbent. Therefore, it is advantageous to cool the flue gas temperature to-20℃to-10 ℃.

As shown in fig. 12, the adsorbent 41 in the embodiment of the present invention may be a granular or powdery adsorbent, or may be an adsorbent body made of a powdery or granular adsorbent, such as a spherical body or a cylindrical body formed by a binder, or the like, and of course, a protective shell, such as a gas permeable membrane, may be further formed on the outside of the adsorbent body to enhance the strength of the adsorbent body. The adsorbents 41 may be filled in the ventilation casing 42 to form adsorbent units, the ventilation casing 42 has ventilation holes through which flue gas may enter the ventilation casing 42, and the flue gas may pass through gaps between adjacent adsorbents 41 and/or holes of the adsorbents themselves, thereby not only reducing direct collision, frictional wear, and dust generation between the adsorbents 41. The ventilation casing may have a shape of a rotary body such as a sphere or a cylinder.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.

Claims (10)

1. An adsorbent regeneration column having a compartment space, comprising:

The tower cylinder is internally provided with a heating cavity and a degassing cavity, the side wall of the tower cylinder is provided with a suction port communicated with the degassing cavity, and an adsorbent with saturated adsorption enters the degassing cavity after being heated by the heating cavity so that the adsorbent regenerates and desorbs regenerated rich gas, and the regenerated rich gas is discharged through the suction port; and

the separation layer component is arranged in the degassing cavity and is provided with a separation layer space and a flow passage, the separation layer space is communicated with the suction port, the separation layer space is arranged at intervals with the flow passage, the adsorbent flows from the upper part of the separation layer space to the lower part of the separation layer space through the flow passage, and the regenerated rich gas desorbed by the adsorbent is discharged from the suction port through the separation layer space.

2. The adsorbent regeneration column with a plenum of claim 1 wherein the plenum member comprises a plurality of drop tubes, the drop tubes being vertically disposed, the lumens of the drop tubes forming the flow channels, at least a portion of adjacent drop tubes being spaced apart to form the plenum, the upper ends of the plurality of drop tubes being connected to one another to avoid the adsorbent falling into the plenum outside of the drop tubes.

3. The adsorbent regeneration tower with interlayer space according to claim 2, wherein a first through hole is arranged on the pipe wall of the blanking pipe, and the aperture of the first through hole is smaller than the particle size of the adsorbent; and/or

The pipe wall of the blanking pipe is provided with a second through hole, the axis of the second through hole is obliquely arranged relative to the axis of the blanking pipe, and the outer end of the second through hole is higher than the inner end of the second through hole; and/or

The blanking pipe is a conical pipe, and the cross section area of the blanking pipe is gradually reduced along the direction from top to bottom; and/or

The vertical height of the blanking pipe is 80mm-300mm; and/or

The distance between the adjacent blanking pipes is 200mm-550mm; and/or

The inner diameter size of the lower end of the blanking pipe is 40mm-160mm.

4. The adsorbent regeneration column with a spacer space of claim 1 wherein said spacer means comprises:

the separation plates extend along a first direction, the first direction is orthogonal to the vertical direction, the separation plates are arranged at intervals in a second direction, the second direction is orthogonal to the first direction and the vertical direction, the flow channel is formed between every two adjacent separation plates, and the separation plates are bent and arranged on the longitudinal section of the tower barrel so as to form the separation layer space at the bottom of the separation plates.

5. The adsorbent regeneration column with a space for a separation layer according to claim 4, wherein the separator is arc-shaped or inverted V-shaped in a longitudinal section of the column; and/or

A converging cavity is arranged on the side wall of the tower barrel, and the converging cavity is communicated with the interlayer space and the suction port; and/or

The plurality of the clapboards are arranged in parallel, and the distance between the adjacent clapboards is 40mm-160mm; and/or

The dimension of the partition plate in the second direction is 200mm-450mm.

6. The adsorbent regeneration column with a spacer space of claim 1 wherein said spacer means comprises:

the separation pipes extend along a first direction, the first direction is orthogonal to the vertical direction, the separation pipes are arranged at intervals in a second direction, the second direction is orthogonal to the first direction and the vertical direction, the flow channels are formed between the adjacent separation pipes, the interlayer space is formed by the inner cavities of the separation pipes, and the separation pipes are provided with communication ports for enabling the regenerated rich gas to enter the interlayer space.

7. The adsorbent regeneration column with an interlayer space of claim 6, wherein a converging cavity is arranged on the side wall of the column, and is communicated with the inner cavity of the isolation tube and the suction port; and/or

The communication port is arranged on the pipe wall of the isolation pipe and is adjacent to the lower end face of the isolation pipe; and/or

The isolating pipe is a mesh pipe, meshes on the isolating pipe are the communication ports, the pore diameter of the mesh adjacent to the upper end face of the isolating pipe is smaller than the particle size of the adsorbent so as to prevent the adsorbent from entering the isolating pipe through the mesh on the upper part of the isolating pipe, and the pore diameter of the mesh adjacent to the lower end face of the isolating pipe is larger than the particle size of the adsorbent so that the adsorbent entering the inner cavity of the isolating pipe flows out through the mesh on the lower part of the isolating pipe; and/or

The plurality of isolation pipes are arranged in parallel, and the distance between every two adjacent isolation pipes is 40mm-160mm; and/or

The size of the isolation tube in the second direction is 200mm-450mm.

8. The adsorbent regeneration column with a spacer space of any one of claims 1-7 wherein the number of spacer members is at least two, at least two of the spacer members being vertically spaced apart.

9. The adsorbent regeneration column with a plenum of claim 1, further comprising an inlet valve block and an outlet valve block, the inlet valve block being disposed at a feed inlet at the top of the column, the inlet valve block comprising a first rotary valve and a second rotary valve in series, the outlet valve block being disposed at a discharge outlet at the bottom of the column, the outlet valve block comprising a third rotary valve and a fourth rotary valve in series; and/or

The two ends of the tower barrel are respectively provided with a feeding cavity and a discharging cavity, and the feeding cavity and the discharging cavity are connected with an air supply assembly to respectively charge air into the feeding cavity and the discharging cavity and keep positive pressure in the feeding cavity and the discharging cavity; and/or

The tower is characterized in that the cavity of the tower barrel is further provided with a preheating cavity and a cooling cavity, the preheating cavity is arranged on the upper side of the heating cavity to preheat the adsorbent which enters the heating cavity and is saturated in adsorption, and the cooling cavity is arranged on the lower side of the degassing cavity to cool down and cool down the regenerated and desorbed adsorbent.

10. A cryogenic adsorption regeneration system, comprising:

the adsorption tower is provided with a flue gas inlet and a flue gas outlet, flue gas enters the adsorption tower from the flue gas inlet and is contacted and adsorbed with an adsorbent in the adsorption tower, and the flue gas subjected to adsorption purification is discharged from the flue gas outlet;

a regeneration tower, which is the adsorbent regeneration tower with interlayer space according to any one of claims 1 to 9, and is connected with the adsorption tower, and is used for regenerating the adsorbent with saturated adsorption discharged by the adsorption tower and sending the regenerated adsorbent back into the adsorption tower;

And the cooling tower is connected with the adsorption tower and is used for cooling the flue gas to below room temperature and then conveying the flue gas to a flue gas inlet of the adsorption tower.