Gas-liquid mixing equipment

Abstract

The utility model provides gas-liquid mixing equipment which comprises a reaction container, a gas-liquid separator and a gas-liquid separator, the first filler layer is arranged in the reaction space; the second filler layer is arranged in the reaction space and located below the first filler layer, and a gap is formed between the second filler layer and the first filler layer; the blocking plate is arranged between the first packing layer and the second packing layer, a gap is formed between the blocking plate and the first packing layer, and a plurality of through holes are formed in the blocking plate. When a part of foam generated by the first filler layer carried by a reaction solution falls on the barrier plate, the reaction solution can smoothly pass through the barrier plate through the through holes of the barrier plate, and a large amount of foam can be adsorbed on the top surface of the barrier plate, so that the foam is blocked in a space between the barrier plate and the first filler layer by the barrier plate. The influence of foam on the surface space of the second filler layer is reduced, so that the overall utilization rate of the filler layer is improved, and the adverse influence of the foam on the gas-liquid reaction effect is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas processing technical field, in particular to a gas liquid mixing equipment. BACKGROUND

[0002] Gas liquid reaction technology is widely used in chemical industry, simply speaking, it is to use the chemical or physical reaction between gas and liquid in the contact process to treat gas or liquid, for example, using the reaction between gas and liquid to absorb some components (such as carbon dioxide or sulfur dioxide) in flue gas, thereby purifying flue gas, or using the reaction between gas and liquid to precipitate carbon dioxide from the liquid containing carbon dioxide, thereby obtaining high-concentration carbon dioxide gas to treat carbon dioxide gas subsequently, which are all specific applications of gas liquid reaction technology.

[0003] In actual application, gas and liquid usually react in the internal space of a tower, and to improve the reaction efficiency between gas and liquid, a packing layer is usually arranged in the internal space of the tower. However, when the liquid falls on the packing layer, foaming occurs, and a large amount of foam is generated, which not only hinders the flow of liquid, but also occupies the surface space of the packing layer, reduces the contact area of gas and liquid, and causes the surface space of the packing layer to be not fully utilized, thereby adversely affecting the gas liquid reaction effect. SUMMARY

[0004] An object of the utility model is to provide a gas liquid mixing equipment which helps to reduce the adverse effect of foam on the gas liquid reaction effect.

[0005] In particular, the utility model provides a gas liquid mixing equipment, which comprises:

[0006] a reaction container, which forms a reaction space;

[0007] a first packing layer, which is arranged in the reaction space;

[0008] a second packing layer, which is arranged in the reaction space and below the first packing layer, and has a spacing with the first packing layer; and

[0009] a blocking plate, which is arranged between the first packing layer and the second packing layer and has a spacing with the first packing layer, and is provided with a plurality of through holes.

[0010] Optionally, the gas liquid mixing equipment further comprises a defoaming member, which is arranged between the first packing layer and the blocking plate and is used to provide a defoaming agent between the first packing layer and the blocking plate.

[0011] Optionally, the defoaming member is a delivery pipe, which communicates with the reaction space to deliver defoaming agent to the space between the first packing layer and the barrier plate.

[0012] Optionally, the container wall of the reaction container is provided with a bubble outlet hole, which is located between the first packing layer and the barrier plate, and which communicates the reaction space with the outside of the reaction container to discharge the foam from the reaction space.

[0013] Optionally, the distance between the lowest point of the bubble outlet hole and the top surface of the barrier plate is set to be greater than or equal to 2 cm.

[0014] Optionally, the gas-liquid mixing device further comprises a bubble collecting container, which communicates with the bubble outlet hole to collect and store the foam flowing out of the bubble outlet hole.

[0015] Optionally, the gas-liquid mixing device further comprises a liquid delivery device arranged in the reaction space and a delivery pump, which communicates with the liquid delivery device and the bubble collecting container respectively to deliver the liquid liquefied in the bubble collecting container to the liquid delivery device and then to the reaction space through the liquid delivery device.

[0016] Optionally, the gas-liquid mixing device further comprises a filter screen arranged on the top surface of the barrier plate.

[0017] Optionally, the first packing layer is structured packing or is formed by stacking a plurality of bulk packings, and the second packing layer is structured packing or is formed by stacking a plurality of bulk packings.

[0018] Optionally, the plurality of bulk packings comprise one or more of Pall ring, Raschig ring, K-type saddle ring, and cup-shaped ring.

[0019] The gas-liquid mixing equipment has the first packing layer and the second packing layer, the second packing layer is arranged below the first packing layer and has a space between the second packing layer and the first packing layer, the barrier plate is arranged between the first packing layer and the second packing layer and has a space between the barrier plate and the first packing layer, and the barrier plate is provided with a plurality of through holes. When the reaction solution falls on the first packing layer, a large amount of foam is generated, and the reaction solution can carry part of the foam to flow downward along the pores of the first packing layer. When the reaction solution and the foam pass through the first packing layer and fall on the barrier plate, because the porosity of the barrier plate is much smaller than that of the packing layer, the reaction solution can smoothly pass through the through holes of the barrier plate and pass through the barrier plate, and a large amount of foam is adsorbed on the top surface of the barrier plate, so as to be blocked by the barrier plate in the space between the barrier plate and the first packing layer. The reaction solution with little foam flows to the second packing layer, so that the surface space of the second packing layer is basically not affected by the foam, the second packing layer is fully utilized, the utilization rate of the whole packing layer is improved, and the adverse effect of the foam on the gas-liquid reaction effect is reduced.

[0020] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of the embodiments thereof, when considered with the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] Some specific embodiments of the present application will be described in detail hereinafter with reference to the drawings, which are presented by way of illustration and not of limitation. Like reference numerals designate like elements or parts throughout the drawings. It should be understood that the drawings are not necessarily to scale. In the drawings:

[0022] Figure 1 is a schematic view of a gas-liquid mixing equipment according to an embodiment of the present application;

[0023] Figure 2 is a schematic view of a gas-liquid mixing equipment according to another embodiment of the present application. DETAILED DESCRIPTION

[0024] Those skilled in the art will understand that the embodiments described below are only a part of the embodiments of the present application, not all the embodiments of the present application, and the part of the embodiments are intended to explain the technical principles of the present application, not to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should still fall within the protection scope of the present application.

[0025] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and so on the orientation or positional relation indicated for based on the orientation or positional relation shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the restriction of the utility model.

[0026] Further, it needs to be further explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be directly connected, can also be indirectly connected through intermediate medium, can also be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0027] As shown in Figure 1 In one embodiment, the gas-liquid mixing device 10 includes a reaction vessel 100, a first packing layer 200, a second packing layer 300 and a barrier plate 400. The reaction vessel 100 is formed with a reaction space 101. The first packing layer 200 is arranged in the reaction space 101. The second packing layer 300 is arranged in the reaction space 101 and below the first packing layer 200. There is a gap between the second packing layer 300 and the first packing layer 200. The barrier plate 400 is arranged between the first packing layer 200 and the second packing layer 300 and has a gap with the first packing layer 200, and the barrier plate 400 is provided with a plurality of through holes 401.

[0028] Referring to Figure 1 Specifically, the reaction vessel 100 is a tower structure for gas-liquid reaction, such as an absorption tower, a desorption tower, etc. The first packing layer 200 is structured packing or formed by stacking a plurality of bulk packings, and the plurality of bulk packings include one or more of Pall ring, Raschig ring, Duol ring, and cup ring. The second packing layer 300 can also be structured packing or formed by stacking a plurality of bulk packings.

[0029] Referring to Figure 1As shown, the reaction vessel 100 is also provided with a gas inlet 102, which is arranged near the bottom end of the reaction vessel 100 and communicates with the reaction space 101, so that the reaction gas can be delivered into the reaction space 101 through the gas inlet 102. The gas-liquid mixing device 10 further comprises a liquid supply device 500, which is arranged above the first packing layer 200 and is used to release the reaction solution into the reaction space 101, so that the reaction gas and the reaction solution can react in the reaction space 101. The liquid supply device 500 can be a sprayer or a drip irrigation device, etc.

[0030] With reference to the drawings again, Figure 1 As shown, the reaction solution released by the liquid supply device 500 first falls on the first packing layer 200, at this time, a large amount of foam will be generated. The reaction solution will flow downward along the pores of the first packing layer 200, and part of the foam will also flow downward together with the reaction solution. Because the blocking plate 400 is located between the first packing layer 200 and the second packing layer 300 and has a spacing with the first packing layer 200, there is a space of a certain size between the top surface of the blocking plate 400 and the first packing layer 200. The reaction solution and the foam pass through the first packing layer 200 and fall on the blocking plate 400, because the porosity of the blocking plate 400 is far less than that of the packing layer, the reaction solution can smoothly pass through the through holes 401 of the blocking plate 400 and pass through the blocking plate 400, while a large amount of foam will be adsorbed on the top surface of the blocking plate 400, so as to be blocked by the blocking plate 400 in the space between the blocking plate 400 and the first packing layer 200. The reaction solution with very little foam content flows to the second packing layer 300, so that the surface space of the second packing layer 300 will not be affected by the foam, so that the second packing layer 300 can be fully utilized.

[0031] In this embodiment, a first packing layer 200 and a second packing layer 300 are provided in the reaction space 101. The second packing layer 300 is positioned below the first packing layer 200 and is spaced apart from the first packing layer 200. A barrier plate 400 is provided between the first packing layer 200 and the second packing layer 300, and is spaced apart from the first packing layer 200. The barrier plate 400 is provided with a plurality of through holes 401. When the reaction solution falls onto the first packing layer 200, a large amount of foam is generated. The reaction solution carries some of the foam downwards along the pores of the first packing layer 200. When the reaction solution and foam pass through the first packing layer 200 and fall onto the baffle plate 400, because the porosity of the baffle plate 400 is much smaller than that of the packing layer, the reaction solution can pass smoothly through the through holes 401 of the baffle plate 400. However, a large amount of foam will be adsorbed on the top surface of the baffle plate 400 and thus blocked by the baffle plate 400 in the space between the baffle plate 400 and the first packing layer 200. The reaction solution with very little foam flows to the second packing layer 300, so that the surface space of the second packing layer 300 is basically unaffected by the foam, making full use of the second packing layer 300. This helps to improve the overall utilization rate of the packing layer and reduce the adverse effects of foam on the gas-liquid reaction effect.

[0032] Specifically, compared with a single integrated packing layer of the same height, the second packing layer 300 of this solution can be more fully utilized, thus improving the overall utilization rate of the packing layer.

[0033] It should be noted that, preferably, the barrier plate 400 is disposed against the top surface of the second filler layer 300, so that the reaction solution passing through the barrier plate 400 can flow more smoothly to the second filler layer 300, reducing the collision that occurs when the reaction solution flows to the second filler layer 300 and reducing the generation of foam.

[0034] It should be noted that the spacing between the first packing layer 200 and the second packing layer 300 is greater than or equal to 3 cm. Further, it can be less than or equal to 10 cm.

[0035] like Figure 1 As shown, in one embodiment, the gas-liquid mixing device 10 further includes a defoaming component disposed between the first packing layer 200 and the barrier plate 400, for providing defoamer between the first packing layer 200 and the barrier plate 400. Specifically, the defoaming component is a delivery pipe 600, which communicates with the reaction space 101 to deliver defoamer between the first packing layer 200 and the barrier plate 400.

[0036] Reference Figure 1As shown, the delivery pipe 600 extends from the outside of the reaction vessel 100 through the side wall of the reaction vessel 100 into the reaction space 101 region between the first packing layer 200 and the baffle plate 400. The delivery pipe 600 may have multiple openings on its side wall communicating with the reaction space 101, or it may communicate with the reaction space 101 through an opening at the end of the pipe. This allows liquid defoamer to be delivered between the first packing layer 200 and the baffle plate 400 through the delivery pipe 600, thereby eliminating the foam accumulated above the baffle plate 400.

[0037] In this embodiment, a defoaming component is provided between the first filler layer 200 and the barrier plate 400. This component provides defoamer to the space between the filler layer 200 and the barrier plate 400, thereby eliminating foam accumulated above the barrier plate 400. This prevents excessive foam accumulation from affecting the flow of the reaction solution and from causing foam to flow into the second filler layer 300. Because this design allows foam to accumulate between the first filler layer 200 and the barrier plate 400, the defoamer can work in a concentrated manner, improving its utilization rate and reducing the amount of defoamer used.

[0038] In addition, by setting the defoaming component as a delivery pipe 600, the defoamer is delivered between the first filler layer 200 and the barrier plate 400 through the delivery pipe 600, making the supply of defoamer more uniform and more controllable.

[0039] It should be noted that the defoaming component can also be a mesh cover that wraps the solid defoamer and is placed above the barrier plate, which can also achieve the defoaming effect.

[0040] Although not shown in the figure, in one embodiment, the gas-liquid mixing device also includes a filter screen disposed on the top surface of the barrier plate. The filter screen has a pore size smaller than that of the through holes in the barrier plate, thereby achieving a better effect in blocking foam.

[0041] like Figure 2 As shown, in another embodiment, the reaction vessel 100 has a bubble outlet 103 on its container wall. The bubble outlet 103 is located between the first packing layer 200 and the baffle plate 400. The bubble outlet 103 connects the reaction space 101 with the outside of the reaction vessel 100 to discharge foam from the reaction space 101. Specifically, the bubble outlet 103 is located on the side wall of the reaction vessel 100 between the first packing layer 200 and the baffle plate 400. When a large amount of foam accumulates between the first packing layer 200 and the baffle plate 400, the foam will overflow the bubble outlet 103 and flow out of the reaction space 101 from the bubble outlet 103.

[0042] In the scheme of the embodiment, the bubble outlet 103 is arranged on the wall of the reaction container 100 between the first filler layer 200 and the barrier plate 400. When the foam accumulated between the first filler layer 200 and the barrier plate 400 is too much, the foam will overflow the bubble outlet 103, and then flow out of the reaction space 101 from the bubble outlet 103, so as to avoid the foam accumulated too much to affect the flow of the reaction solution and cause the foam to flow to the second filler layer 300.

[0043] It should be noted that the reaction container can be provided with a plurality of bubble outlets, and the plurality of bubble outlets are uniformly distributed along the circumference of the reaction container.

[0044] Referring to Figure 2 The distance between the lowest point of the bubble outlet 103 and the top surface of the barrier plate 400 is greater than or equal to 2 cm, so as to avoid too much reaction solution flowing out of the bubble outlet 103. Further, the distance between the lowest point of the bubble outlet 103 and the top surface of the barrier plate 400 is greater than or equal to 2 cm and less than or equal to 5 cm, for example, it can be 2 cm, 3 cm, 4 cm or 5 cm, and the like.

[0045] As shown in Figure 2 The gas-liquid mixing device 10 further comprises a bubble collecting container 700, which is in communication with the bubble outlet 103 and is used to collect and store the foam flowing out of the bubble outlet 103. Specifically, the bubble collecting container 700 is in communication with the bubble outlet 103 through a pipeline, and the foam flowing out of the bubble outlet 103 flows into the bubble collecting container 700 through the pipeline between the bubble outlet 103 and the bubble collecting container 700, so as to be stored in the bubble collecting container 700.

[0046] Because the liquid formed by the liquefaction of the foam generated by the reaction solution can be recycled, the bubble collecting container 700 in communication with the bubble outlet 103 can be used to store the foam flowing out of the bubble outlet 103 in the bubble collecting container 700, and then the foam is liquefied for recycling.

[0047] As shown in Figure 2 The gas-liquid mixing device 10 further comprises a liquid delivery device 800 and a delivery pump 900. The liquid delivery device 800 is arranged in the reaction space 101, and the delivery pump 900 is in communication with the liquid delivery device 800 and the bubble collecting container 700, respectively, and is used to deliver the liquid liquefied in the bubble collecting container 700 to the liquid delivery device 800, and then deliver the liquid to the reaction space 101 through the liquid delivery device 800.

[0048] Referring to Figure 2As shown, specifically, the infusion device 800 is arranged above the first filler layer 200, which can be a sprayer or a drip irrigation device, etc. The delivery pump 900 is in communication with the infusion device 800 and the bubble collecting container 700 through pipelines. After sufficient solution formed by the foamed liquid is collected in the bubble collecting container 700, the delivery pump 900 can be used to deliver the solution in the bubble collecting container 700 to the infusion device 800, which is then delivered into the reaction space 101, so as to realize the recycling of the solution and improve the utilization rate of the solution.

[0049] It should be noted that the infusion device and the liquid supply device described in the foregoing embodiments can be the same device or two different devices. In the case of being the same device, the device has a main pipeline for mainly supplying the reaction solution in addition to the pipeline for connecting the bubble collecting container.

[0050] It should be noted that in some other embodiments, the bubble outlet and the bubble eliminating member can also be arranged simultaneously.

[0051] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in the foregoing embodiments, many other variants or modifications conforming to the principles of the present application can be directly determined or deduced from the content disclosed in the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. A gas-liquid mixing apparatus characterized by comprising: The gas-liquid mixing apparatus comprises: a reaction vessel having a reaction space formed therein; a first packing layer disposed in the reaction space; a second packing layer disposed in the reaction space below the first packing layer, the second packing layer being spaced apart from the first packing layer; and a barrier plate disposed between the first packing layer and the second packing layer and spaced apart from the first packing layer, the barrier plate being provided with a plurality of through-holes.

2. The gas-liquid mixing apparatus according to claim 1, further comprising a defoaming member disposed between the first packing layer and the barrier plate for providing a defoaming agent between the first packing layer and the barrier plate.

3. The gas-liquid mixing apparatus according to claim 2, wherein the defoaming member is a delivery pipe in communication with the reaction space for delivering the defoaming agent between the first packing layer and the barrier plate.

4. The gas-liquid mixing apparatus according to claim 1, wherein a bubble outlet is formed in a wall of the reaction vessel between the first packing layer and the barrier plate, the bubble outlet being in communication with the reaction space and an exterior of the reaction vessel for discharging bubbles from the reaction space.

5. The gas-liquid mixing apparatus according to claim 4, wherein a distance between a lowest point of the bubble outlet and a top surface of the barrier plate is greater than or equal to 2 cm.

6. The gas-liquid mixing apparatus according to claim 4, further comprising a bubble collection vessel in communication with the bubble outlet for collecting and storing bubbles discharged from the bubble outlet.

7. The gas-liquid mixing apparatus according to claim 6, further comprising a liquid delivery device disposed in the reaction space and a delivery pump in communication with the liquid delivery device and the bubble collection vessel for delivering liquid liquefied in the bubble collection vessel to the liquid delivery device and then to the reaction space via the liquid delivery device.

8. The gas-liquid mixing apparatus according to claim 1, further comprising a filter screen disposed on a top surface of the barrier plate.

9. The gas-liquid mixing apparatus according to claim 1, wherein the first packing layer is structured packing or formed by stacking a plurality of bulk packing, and the second packing layer is structured packing or formed by stacking a plurality of bulk packing.

10. The gas-liquid mixing apparatus according to claim 9, wherein the plurality of bulk packing comprises one or more of Pall ring, Raschig ring, Duol ring, and cup-shaped ring. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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