Bubble column absorber

Abstract

The present application relates to the field of gas absorption, and provides a bubble absorber, comprising: a heat exchanger, which is internally provided with a heat releasing flow channel and a heat absorbing flow channel, and is further provided with an absorption medium inlet and an absorption medium outlet, and the two ends of the heat releasing flow channel are respectively communicated with the absorption medium inlet and the absorption medium outlet; a gas distribution unit, which is arranged at one end of the heat releasing flow channel close to the absorption medium inlet, and is used for being connected with a gas source providing a medium to be absorbed; the gas distribution unit is provided with a gas distribution hole at a position corresponding to the heat releasing flow channel; a gas supplementing unit, which is connected and communicated with the gas distribution unit, and extends into the heat releasing flow channel, and is provided with a plurality of gas supplementing holes distributed along the direction from the absorption medium inlet to the absorption medium outlet. The plurality of gas supplementing holes respectively supplement gas at different positions, which can not only increase the contact area of the medium to be absorbed and the absorption medium, but also reduce the problem that the contact area of the medium to be absorbed and the absorption medium is reduced due to the merging of bubbles into large bubbles during the rising of the bubbles, and improve the mass transfer efficiency.

Description

Technical Field

[0001] This invention relates to the field of gas absorption technology, and more particularly to a bubbling absorber. Background Technology

[0002] Absorbers are needed in fields such as HVAC, energy utilization, food and pharmaceuticals, and petrochemicals. The principle of an absorber is to use a solution to absorb gas, achieving the capture, separation, or removal of one or more components. For example, in absorption refrigeration and heat pump systems, absorbers are used to absorb the gaseous working fluid and the solution, thus completing the entire solution cycle and achieving heat-driven, high-efficiency refrigeration and heating; in carbon capture and storage systems, absorbers are used to absorb carbon dioxide from flue gas into an amine working fluid, achieving efficient carbon dioxide capture; and in air dehumidification systems, absorbers are used to absorb water vapor from the air into a dehumidification solution, achieving moisture removal and air humidity control.

[0003] Unlike traditional heat exchangers, absorbers involve both heat and mass transfer processes simultaneously: during absorption, one or more components from the absorbable medium (usually a gas) migrate into the absorbant medium (usually a liquid), which is the mass transfer process. This mass transfer process is often accompanied by heat transfer, and since most absorption processes are exothermic, a cooling medium is needed to ensure the continuous operation of the absorption process, which is the heat transfer process. Both heat and mass transfer processes require sufficient contact area between the absorbant and absorbable media, and the mass transfer area required for absorption is often larger than the heat transfer area. Therefore, absorbers are often larger than heat exchangers with the same heat exchange capacity, resulting in bulky equipment, large liquid storage capacity, and high cost, severely limiting and hindering the practical application of absorbers.

[0004] To increase the contact area between the absorbent medium and the absorbent medium, i.e., the gas-liquid contact area, bubbling absorbers have been provided in related technologies. The main improvement method for bubbling absorbers is to enhance gas distribution, that is, to break the absorbent medium into small bubbles and evenly distribute them in the absorbent medium using a gas distribution device. However, the inventors have found that bubbling absorbers in related technologies have at least the following drawbacks: On the one hand, since all the absorbent medium is injected from the bottom of the absorber, the number of bubbles formed by the gas distribution device is enormous. As the gas and liquid flow, the dense small bubbles will re-aggregate into large bubbles or even gas columns, forming slug flows, plug flows, annular flows, etc., with a large specific surface area, leading to deterioration of heat and mass transfer; on the other hand, the inlet section of the absorbent medium experiences severe disturbance, forming turbulence, thus the heat and mass transfer efficiency in the front section of the absorber is high. However, as the gas and liquid flow gradually stabilizes, laminar flow is formed, thus the heat and mass transfer in the middle and rear sections of the absorber deteriorates. Summary of the Invention

[0005] This invention provides a bubble absorber to solve or improve the defect in related technologies where bubbles in bubble absorbers tend to aggregate during their ascent, leading to deterioration of heat and mass transfer, thereby achieving the effect of improving heat and mass transfer efficiency.

[0006] This invention provides a bubbling absorber, comprising:

[0007] The heat exchanger has a heat release channel and a heat absorption channel inside for heat exchange. The heat exchanger also has an absorption medium inlet and an absorption medium outlet. The two ends of the heat release channel are respectively connected to the absorption medium inlet and the absorption medium outlet.

[0008] A gas distribution unit is provided at one end of the heat release channel near the inlet of the absorption medium. The gas distribution unit is used to connect to the gas source that provides the absorption medium. The gas distribution unit is provided with gas distribution holes at the position corresponding to the heat release channel.

[0009] A gas replenishment unit is connected and communicates with the gas distribution unit. The gas replenishment unit extends into the heat release channel and is provided with a plurality of gas replenishment holes distributed along the direction from the inlet of the absorption medium to the outlet of the absorption medium.

[0010] According to a bubble absorber provided by the present invention, the orifice size of the air replenishment hole at the end of the air replenishment unit near the inlet of the absorption medium is larger than the orifice size of the air replenishment hole at the end of the air replenishment unit near the outlet of the absorption medium.

[0011] According to a bubble absorber provided by the present invention, the number of air supply holes of the air supply unit near the inlet of the absorption medium is greater than the number of air supply holes of the air supply unit near the outlet of the absorption medium.

[0012] According to a bubble absorber provided by the present invention, the gas replenishment unit includes a gas replenishment pipe, one end of which is connected to the gas distribution unit, the other end of which is closed and extends into the heat release channel, and the gas replenishment hole is provided on the pipe wall of the gas replenishment pipe.

[0013] According to the present invention, a bubbling absorber includes an air supply unit comprising:

[0014] A connecting pipe, one end of which is connected to the air distribution unit, and the other end of which is closed and extends into the heat dissipation channel;

[0015] An air supply pipe is provided, one end of which is connected to the connecting pipe, and the other end of which is closed. The line connecting the two ends of the air supply pipe is set at an angle to the line connecting the two ends of the connecting pipe. The pipe wall of the air supply pipe is provided with a plurality of air supply holes distributed along the axial direction of the air supply pipe.

[0016] According to the present invention, a bubbling absorber includes an air supply unit comprising:

[0017] The gas supply pipe is configured as a U-shaped pipe, with both ends of the gas supply pipe closed and both ends of the gas supply pipe facing the outlet of the absorption medium. The gas supply pipe wall is provided with the gas supply hole.

[0018] A connecting pipe, one end of which is connected to the air distribution unit, and the other end of which is connected to the air supply pipe.

[0019] According to a bubble absorber provided by the present invention, the gas distribution unit includes an air inlet pipe, one end of which is connected to the gas source, the other end of which extends into the heat exchanger and is sealed, the air inlet pipe is provided with the gas distribution hole, and the air supply unit is provided on the air inlet pipe.

[0020] According to a bubble absorber provided by the present invention, at least two air inlet pipes are provided, and each air inlet pipe is provided with the air replenishment unit.

[0021] According to a bubble absorber provided by the present invention, the air distribution unit includes an air inlet pipe and an air distribution pipe;

[0022] One end of the air inlet pipe is used to connect to the air source. One end of the air inlet pipe extends into the heat exchanger and is closed. One end of the air distribution pipe is connected to the air inlet pipe. The other end of the air distribution pipe is closed. The line connecting the two ends of the air distribution pipe is set at an angle to the line connecting the two ends of the air inlet pipe. The air distribution pipe is provided with the air distribution hole. At least one of the air inlet pipe and the air distribution pipe is provided with the air replenishment unit.

[0023] According to a bubble absorber provided by the present invention, the air replenishment unit includes an air inlet pipe, a connecting pipe, and a housing structure;

[0024] The shell structure seals between the absorbent medium inlet and the exothermic flow channel. One end of the air inlet pipe is connected to the air source, and the other end of the air inlet pipe is connected to the shell structure. The air replenishment unit is connected to the shell structure. The connecting pipe passes through the shell structure to connect the absorbent medium inlet and the exothermic flow channel.

[0025] The bubbling absorber provided by this invention allows the absorption medium to be introduced into the heat exchanger's heat release channel through the absorption medium inlet. After flowing through the heat release channel, the absorption medium is discharged from the absorption medium outlet. Cooling medium can flow within the heat absorption channel, thereby cooling the absorption medium. A gas source introduces the medium to be absorbed into the gas distribution unit. A portion of the medium to be absorbed within the gas distribution unit is discharged from the gas distribution holes, forming bubbles that enter the absorption medium, thus increasing the mass transfer area between the absorption medium and the medium to be absorbed and enhancing mass transfer.

[0026] The remaining absorbable medium enters the gas replenishment unit, runs along the gas replenishment unit, and is discharged from each gas replenishment hole of the gas replenishment unit to the heat exchange channel. By replenishing gas at different positions through multiple gas replenishment holes distributed along the direction from the absorbable medium inlet to the absorbable medium outlet, the contact area between the absorbable medium and the absorbent medium can be increased, and the problem of the contact area between the absorbable medium and the absorbent medium being reduced due to the merging of bubbles into large bubbles during the rising process can be reduced, thereby improving the mass transfer efficiency.

[0027] In addition, the gas replenishment unit replenishes gas at different positions through multiple gas replenishment holes distributed along the direction from the inlet to the outlet of the absorption medium. Under the agitation of the airflow, the absorption medium in the entire heat release channel is basically in a turbulent state. This not only enables the medium to be absorbed to dissolve quickly into the absorption medium, but also accelerates the heat exchange efficiency between the absorption medium and the cooling medium, reducing the problem of deterioration of mass and heat transfer under laminar flow conditions. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the first type of bubbling absorber provided in the embodiments of the present invention;

[0030] Figure 2 This is provided in the embodiments of the present invention. Figure 1 AA section view in the middle;

[0031] Figure 3 This is provided in the embodiments of the present invention. Figure 1 A schematic diagram of the gas distribution unit and gas replenishment unit of the bubble absorber shown;

[0032] Figure 4 This is a schematic diagram of the air distribution unit and air replenishment unit of the second type of bubbling absorber provided in this embodiment of the invention;

[0033] Figure 5 This is a schematic diagram of the air distribution unit and air replenishment unit of the third type of bubbling absorber provided in this embodiment of the invention;

[0034] Figure 6 This is provided in the embodiments of the present invention. Figure 5 The diagram shows the internal structure of the air distribution unit.

[0035] Figure 7This is a schematic diagram of the air distribution unit and air replenishment unit of the fourth type of bubbling absorber provided in this embodiment of the invention;

[0036] Figure 8 This is a schematic diagram of the air distribution unit and air replenishment unit of the fifth type of bubbling absorber provided in this embodiment of the invention.

[0037] Figure label:

[0038] 1. Heat exchanger; 101. Heat dissipation channel; 102. Heat absorption channel; 103. Absorption medium inlet; 104. Absorption medium outlet; 105. Cooling medium inlet; 106. Cooling medium outlet; 107. Shell; 108. End cap; 2. Air distribution hole; 3. Air supply hole; 4. Air supply pipe; 5. Connecting pipe; 6. Air inlet pipe; 7. Air distribution pipe; 8. Connecting pipe; 9. Shell structure. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0040] The following is combined Figures 1 to 8 The bubble absorber provided in the embodiments of the present invention is described.

[0041] Specifically, the bubbling absorber includes a heat exchanger 1, an air distribution unit, and an air replenishment unit.

[0042] Among them, reference Figure 2 As shown, the heat exchanger 1 has a heat-exchanging channel 101 and a heat-absorbing channel 102 inside, which are capable of heat exchange. The heat exchanger 1 also has an absorption medium inlet 103 and an absorption medium outlet 104. The two ends of the heat-exchanging channel 101 are connected to the absorption medium inlet 103 and the absorption medium outlet 104, respectively. It is understood that the heat exchanger 1 also has a cooling medium inlet 105 and a cooling medium outlet 106, both of which are connected to the heat-absorbing channel 102. It should be noted that the absorption medium in the heat-exchanging channel 101 and the cooling medium in the heat-absorbing channel 102 can exchange heat using methods such as co-current heat exchange, counter-current heat exchange, mixed-flow heat exchange, or cross-flow heat exchange.

[0043] The gas distribution unit is located at one end of the heat release channel 101 near the absorption medium inlet 103. The gas distribution unit is used to connect with the gas source that provides the absorption medium. The gas distribution unit is provided with gas distribution holes 2 at the position corresponding to the heat release channel 101.

[0044] The gas replenishment unit is connected and communicates with the gas distribution unit. The gas replenishment unit extends into the heat dissipation channel 101. The gas replenishment unit is provided with multiple gas replenishment holes 3, and the multiple gas replenishment holes 3 are distributed along the direction from the absorption medium inlet 103 to the absorption medium outlet 104.

[0045] The bubbling absorber provided in this embodiment of the invention allows the absorption medium to be introduced into the heat release channel 101 within the heat exchanger 1 through the absorption medium inlet 103. After flowing through the heat release channel 101, the absorption medium is discharged from the absorption medium outlet 104. Cooling medium can flow within the heat absorption channel 102, thereby cooling the absorption medium. A gas source introduces the medium to be absorbed into the gas distribution unit. Part of the medium to be absorbed within the gas distribution unit is discharged from the gas distribution holes 2, forming bubbles that enter the absorption medium, thereby increasing the mass transfer area between the absorption medium and the medium to be absorbed and enhancing mass transfer.

[0046] The remaining absorbable medium in the gas distribution unit enters the gas replenishment unit, runs along the gas replenishment unit, and is discharged from each gas replenishment hole 3 of the gas replenishment unit to the heat exchange channel. By replenishing gas at different positions through multiple gas replenishment holes 3 distributed along the direction from the absorbent medium inlet 103 to the absorbent medium outlet 104, the contact area between the absorbable medium and the absorbent medium can be increased, and the problem of the contact area between the absorbable medium and the absorbent medium being reduced due to the merging of bubbles into large bubbles during the rising process can be reduced, thereby improving the mass transfer efficiency.

[0047] In addition, the gas replenishment unit replenishes gas at different positions through multiple gas replenishment holes 3 distributed along the direction from the absorption medium inlet 103 to the absorption medium outlet 104. Under the stirring effect of the airflow at each position, the absorption medium in the entire heat release channel 101 is basically in a turbulent state. This can not only make the medium to be absorbed dissolve quickly in the absorption medium, but also accelerate the heat exchange efficiency between the absorption medium and the cooling medium, thereby reducing the problem of mass and heat transfer deterioration under laminar flow.

[0048] In some embodiments provided by this invention, the heat exchanger 1 is a plate heat exchanger. Multiple heat release channels 101 and heat absorption channels 102 are provided, and each heat exchange channel is connected at both ends to the absorption medium inlet 103 and the absorption medium outlet 104, respectively. (Reference) Figure 2 As shown, the heat release channel 101 and the heat absorption channel 102 are arranged alternately, and adjacent heat release channels 101 and heat absorption channels 102 are separated by plates. The plates can be in various forms such as flat plates, corrugated plates, or herringbone plates.

[0049] refer to Figure 2As shown, in some embodiments provided by the present invention, the heat exchanger 1 includes a cylindrical body 107 and end caps 108. End caps 108 are provided at both ends of the cylindrical body 107, and a heat dissipation channel 101 and a heat absorption channel 102 are both disposed within the cylindrical body 107. The two ends of the heat dissipation channel 101 are respectively connected to the two end caps 108, and the two end caps 108 are respectively provided with an absorption medium inlet 103 and an absorption medium outlet 104.

[0050] In some embodiments provided by the invention, the orifice size of the gas replenishment hole 3 at the end of the gas replenishment unit near the absorbent medium inlet 103 is larger than the orifice size of the gas replenishment hole 3 at the end of the gas replenishment unit near the absorbent medium outlet 104. Since the time required for gas to travel from the gas replenishment hole 3 at the end of the gas replenishment unit near the absorbent medium outlet 104 to the absorbent medium outlet 104 is shorter after discharge, the contact time between the absorbent medium and the medium to be absorbed is shorter. In this embodiment, by reducing the orifice size of the gas replenishment hole 3 at the end of the gas replenishment unit near the absorbent medium outlet 104, the amount of gas discharged from the exhaust hole at the end of the gas replenishment unit near the absorbent medium outlet 104 can be reduced, thereby reducing the problem of gas not being absorbed by the absorbent medium.

[0051] In some embodiments of the invention, the number of air supply holes 3 near the absorbent medium inlet 103 of the air supply unit is greater than the number of air supply holes 3 near the absorbent medium outlet 104 of the air supply unit. Because the time required for gas to travel from the air supply holes 3 near the absorbent medium outlet 104 to the outlet 104 of the air supply unit is shorter after discharge, the contact time between the absorbent medium and the medium to be absorbed is shorter. In this embodiment, by reducing the number of air supply holes 3 near the absorbent medium outlet 104 of the air supply unit, the amount of gas discharged from the exhaust port near the outlet 104 of the air supply unit can be reduced, thus reducing the problem of gas not being absorbed by the absorbent medium.

[0052] refer to Figures 1-6 As shown, in some embodiments provided by the present invention, the gas replenishment unit includes a gas replenishment pipe 4, one end of which is connected to the gas distribution unit, and the other end of which is closed and extends into the heat release channel 101. Gas replenishment holes 3 are provided on the pipe wall of the gas replenishment pipe 4. This configuration simplifies the structure of the gas replenishment unit.

[0053] Furthermore, the air supply pipe 4 can be a round pipe, a rectangular pipe, or a threaded pipe.

[0054] Optionally, refer to Figures 1-6 As shown, each heat dissipation channel 101 is provided with at least two air supply pipes 4. With this arrangement, each heat dissipation channel 101 has at least two air supply pipes 4 supplying air simultaneously, which can further increase the contact area between the absorbent medium and the medium to be absorbed, and improve the agitation effect of the airflow on the absorbent medium, thereby further improving the heat and mass transfer effect.

[0055] Of course, the air supply unit is not limited to the form of the air supply pipe 4 mentioned above, for example, refer to Figure 7 As shown, in other embodiments provided by the present invention, the air replenishment unit includes a connecting pipe 5 and an air replenishment pipe 4.

[0056] One end of the connecting pipe 5 is connected to the gas distribution unit, and the other end of the connecting pipe 5 is closed and extends into the heat dissipation channel 101. One end of the gas supply pipe 4 is connected to the connecting pipe 5, and the other end of the gas supply pipe 4 is closed. The line connecting the two ends of the gas supply pipe 4 is set at an angle to the line connecting the two ends of the connecting pipe 5. The pipe wall of the gas supply pipe 4 is provided with multiple gas supply holes 3 distributed along the axial direction of the gas supply pipe 4.

[0057] Because the bubbles discharged from the air inlet 3 mainly follow the flow direction of the absorption medium, and are less likely to travel in a direction perpendicular to the flow direction, the trajectory of the bubbles discharged from the air inlet 3 mainly follows... Figure 7 The flow path is vertical. In this embodiment, the connecting pipe 5 extends along the flow direction of the absorption medium, while the air supply pipe 4 is angled to the connecting pipe 5. Therefore, the air supply pipe 4 can supply air in a direction perpendicular to the flow direction, so that as many air supply holes 3 as possible can be distributed in the direction perpendicular to the flow direction, further increasing the contact area between the absorption medium and the medium to be absorbed, and improving the agitation effect of the airflow on the absorption medium, thereby further improving the heat and mass transfer effect.

[0058] Optionally, both the connecting pipe 5 and the air supply pipe 4 are straight pipes, and they are perpendicular to each other.

[0059] Optionally, refer to Figure 7 As shown, at least one side of the connecting pipe 5 is provided with a plurality of air supply pipes 4, and the plurality of air supply pipes 4 are arranged sequentially along the axial direction of the connecting pipe 5. Specifically, at least one side of the connecting pipe 5 is provided with air supply pipes 4 that are the same number as the number of heat dissipation channels and correspond one-to-one.

[0060] Optionally, an air inlet 3 can also be provided on the wall of the connecting pipe 5.

[0061] Of course, the air supply pipe 4 and connecting pipe 5 of the air supply unit are not limited to the above forms, for example, refer to Figure 8 As shown, in other embodiments provided by the present invention, the air replenishment unit includes an air replenishment pipe 4 and a connecting pipe 5.

[0062] The gas supply pipe 4 is configured as a U-shaped pipe, with both ends of the pipe closed and facing the absorption medium outlet 104. The pipe wall of the gas supply pipe 4 has gas supply holes 3. One end of the connecting pipe 5 is connected to the gas distribution unit, and the other end is connected to the gas supply pipe 4. Because there is a gap between the straight pipe sections on both sides of the U-shaped pipe, each heat release channel 101 has two straight pipe sections simultaneously supplying gas, which can further increase the contact area between the absorption medium and the medium to be absorbed, and improve the agitation effect of the airflow on the absorption medium, thereby further improving the heat and mass transfer effect.

[0063] refer to Figure 3 and Figure 7 As shown, in some embodiments provided by the present invention, the air distribution unit includes an air inlet pipe 6. One end of the air inlet pipe 6 is used to connect to an air source, and the other end of the air inlet pipe 6 extends into the heat exchanger 1 and is sealed. The air inlet pipe 6 is provided with air distribution holes 2, and the air distribution unit is provided on the air inlet pipe 6. With this configuration, the structure of the air distribution unit is simple.

[0064] refer to Figure 2 and Figure 3 As shown, in some embodiments provided by the present invention, at least two air intake pipes 6 are provided, and each air intake pipe 6 is provided with an air distribution unit. Specifically, each air intake pipe 6 extends along the direction of the arrangement of multiple heat dissipation channels 101, and each air intake pipe 6 is provided with an air replenishment unit at a position corresponding to each heat dissipation channel 101, so that each heat dissipation channel 101 has at least two air replenishment units.

[0065] Of course, the air distribution unit is not limited to the above-mentioned intake pipe 6 form, for example, refer to Figure 4 and Figure 8 As shown, in other embodiments provided by the present invention, the air distribution unit includes an air inlet pipe 6 and an air distribution pipe 7.

[0066] One end of the air inlet pipe 6 is used to connect to the air source, and the other end of the air inlet pipe 6 extends into the heat exchanger 1 and is sealed. One end of the air distribution pipe 7 is connected to the air inlet pipe 6, and the other end of the air distribution pipe 7 is sealed. The line connecting the two ends of the air distribution pipe 7 is set at an angle to the line connecting the two ends of the air inlet pipe 6. The air distribution pipe 7 is provided with a plurality of air distribution holes 2 arranged along the axial direction of the air distribution pipe 7. At least one of the air inlet pipe 6 and the air distribution pipe 7 is provided with an air replenishment unit.

[0067] Since the air bubbles discharged from the air inlet 3 mainly travel in a vertical direction, in this embodiment, the air distribution pipe 7 can replenish air in a direction perpendicular to the flow direction of the absorption medium. This allows for the distribution of as many air inlet 3 as possible in the direction perpendicular to the flow direction, further increasing the contact area between the absorption medium and the medium to be absorbed, and improving the agitation effect of the airflow on the absorption medium, thereby further improving the heat and mass transfer effect.

[0068] Optionally, refer to Figure 8 As shown, at least one side of the intake pipe 6 is provided with a plurality of air distribution pipes 7 arranged along the axial direction of the intake pipe 6. Specifically, at least one side of the intake pipe 6 is provided with the same number of air distribution pipes 7 as the heat dissipation channels 101 and they correspond one-to-one.

[0069] Optionally, refer to Figure 4 As shown, both sides of the intake pipe 6 are equipped with straight-tube-shaped air supply pipes 4, or refer to Figure 8 As shown, the intake pipe 6 is equipped with a U-shaped supplementary air pipe 4.

[0070] Optionally, both the intake pipe 6 and the air distribution pipe 7 are straight pipes, and they are perpendicular to each other.

[0071] Of course, the air distribution unit is not limited to the form of the air intake pipe 6 and air distribution pipe 7 mentioned above, for example, refer to Figure 5 and Figure 6 As shown, in some embodiments provided by the present invention, the air distribution unit includes an air inlet pipe 6, a connecting pipe 8, and a housing structure 9.

[0072] The shell structure 9 seals the space between the absorbent medium inlet 103 and the heat release channel 101. Specifically, the shell structure 9 is located between the cylinder 107 and the end cap 108, which has the absorbent medium inlet 103. One end of the air inlet pipe 6 is connected to a gas source, and the other end is connected to the shell structure 9 to introduce the absorbent medium into the shell structure 9. The gas supply unit is connected to the shell structure 9, and the shell structure 9 has a gas distribution hole 2 on the side near the heat release channel 101. The connecting pipe 8 penetrates the shell structure 9 to connect the absorbent medium inlet 103 and the heat release channel 101. Each heat release channel 101 has a corresponding gas distribution hole 2 and a connecting pipe 8.

[0073] During operation, the absorbent medium enters the corresponding end cap 108 through the absorbent medium inlet 103, and then passes through the shell structure 9 via the connecting pipe 8 to enter the heat release channel 101. The absorbable medium enters the shell structure 9 through the air inlet pipe 6. Part of the absorbable medium inside the shell structure 9 is discharged from the air distribution hole 2, and the rest of the absorbable medium enters the air replenishment unit.

[0074] With this configuration, the absorption medium discharged from the connecting pipe 8 and the absorbable medium discharged from the air distribution hole 2 both enter the corresponding heat release channel 101. The absorbable medium and the absorbent medium are more evenly distributed in each heat release channel 101, thereby improving the mass transfer and heat transfer efficiency.

[0075] In some embodiments provided by the present invention, the air distribution hole 2 is a round hole, a star-shaped hole, or a polygonal hole. The air replenishment hole 3 is a round hole, a star-shaped hole, or a polygonal hole.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bubbling absorber, characterized in that, include: The heat exchanger (1) is provided with a heat release channel (101) and a heat absorption channel (102) for heat exchange. The heat exchanger (1) is also provided with an absorption medium inlet (103) and an absorption medium outlet (104). The two ends of the heat release channel (101) are respectively connected to the absorption medium inlet (103) and the absorption medium outlet (104). A gas distribution unit is provided at one end of the heat release channel (101) near the inlet (103) of the absorption medium. The gas distribution unit is used to connect to the gas source that provides the absorption medium. The gas distribution unit is provided with a gas distribution hole (2) at the position corresponding to the heat release channel (101). A gas replenishment unit is connected and communicated with the gas distribution unit. The gas replenishment unit extends into the heat release channel (101). The gas replenishment unit is provided with a plurality of gas replenishment holes (3) distributed along the direction from the absorption medium inlet (103) to the absorption medium outlet (104). Part of the absorbable medium in the gas distribution unit is discharged from the gas distribution hole (2) to form bubbles and enter the absorbable medium. The remaining absorbable medium in the gas distribution unit enters the gas replenishment unit and runs along the gas replenishment unit, and is discharged from each of the gas replenishment holes (3) to the heat release channel (101). The orifice size of the air replenishment hole (3) at the end of the air replenishment unit near the inlet (103) of the absorption medium is larger than the orifice size of the air replenishment hole (3) at the end of the air replenishment unit near the outlet (104) of the absorption medium.

2. The bubbling absorber according to claim 1, characterized in that, The number of air replenishment holes (3) on the end of the air replenishment unit near the inlet (103) of the absorption medium is greater than the number of air replenishment holes (3) on the end of the air replenishment unit near the outlet (104) of the absorption medium.

3. The bubbling absorber according to claim 1 or 2, characterized in that, The gas replenishment unit includes a gas replenishment pipe (4), one end of which is connected to the gas distribution unit, and the other end of which is closed and extends into the heat release channel (101). The gas replenishment hole (3) is provided on the pipe wall of the gas replenishment pipe (4).

4. The bubbling absorber according to claim 1 or 2, characterized in that, The gas replenishment unit includes: A connecting pipe (5) is provided, one end of which is connected to the air distribution unit, and the other end of which is closed and extends into the heat dissipation channel (101). An air supply pipe (4) is provided, one end of which is connected to the connecting pipe (5), the other end of which is closed, and the line connecting the two ends of the air supply pipe (4) is set at an angle to the line connecting the two ends of the connecting pipe (5). The pipe wall of the air supply pipe (4) is provided with a plurality of air supply holes (3) distributed along the axial direction of the air supply pipe (4).

5. The bubbling absorber according to claim 1 or 2, characterized in that, The gas replenishment unit includes: The gas supply pipe (4) is configured as a U-shaped pipe. Both ends of the gas supply pipe (4) are closed, and both ends of the gas supply pipe (4) face the outlet (104) of the absorption medium. The gas supply pipe (4) has the gas supply hole (3) on its wall. A connecting pipe (5) is provided, one end of which is connected to the air distribution unit and the other end of which is connected to the air supply pipe (4).

6. The bubbling absorber according to claim 1 or 2, characterized in that, The air distribution unit includes an air inlet pipe (6), one end of which is used to connect to the air source, and the other end of which extends into the heat exchanger (1) and is sealed. The air inlet pipe (6) is provided with the air distribution hole (2), and the air supply unit is provided on the air inlet pipe (6).

7. The bubbling absorber according to claim 6, characterized in that, The air intake pipe (6) is configured to be at least two, and each air intake pipe (6) is provided with the air replenishment unit.

8. The bubbling absorber according to claim 1 or 2, characterized in that, The air distribution unit includes an air inlet pipe (6) and an air distribution pipe (7); One end of the air inlet pipe (6) is used to connect to the air source. One end of the air inlet pipe (6) extends into the heat exchanger (1) and is closed. One end of the air distribution pipe (7) is connected to the air inlet pipe (6). The other end of the air distribution pipe (7) is closed. The line connecting the two ends of the air distribution pipe (7) is set at an angle to the line connecting the two ends of the air inlet pipe (6). The air distribution pipe (7) is provided with a plurality of air distribution holes (2) distributed along the axial direction of the air distribution pipe (7). At least one of the air inlet pipe (6) and the air distribution pipe (7) is provided with the air replenishment unit.

9. The bubbling absorber according to claim 1 or 2, characterized in that, The air distribution unit includes an air inlet pipe (6), a connecting pipe (8), and a shell structure (9); The shell structure (9) seals between the absorption medium inlet (103) and the heat release channel (101). One end of the air inlet pipe (6) is used to connect to the air source, and the other end of the air inlet pipe (6) is connected to the shell structure (9). The air replenishment unit is connected to the shell structure (9). The shell structure (9) is provided with the air distribution hole (2) on the side near the heat release channel (101). The connecting pipe (8) passes through the shell structure (9) to connect the absorption medium inlet (103) and the heat release channel (101).

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