Carbon dioxide defoaming device

Abstract

The utility model provides a carbon dioxide defoaming device, and belongs to the technical field of carbon dioxide recycling, the carbon dioxide defoaming device comprises a shell (1) and a plurality of flushing devices (2), each flushing device (2) comprises a partition plate (3) and a plurality of nozzles (5), the nozzles (5) are arranged at the bottom of the partition plate (3), and the nozzles (5) are connected with a water inlet pipe (11); the partition plate (3) is provided with a plurality of guide pipes (4) and through holes communicated with the guide pipes (4). The plurality of flushing devices (2) are arranged in the shell (1) at intervals up and down; an air inlet pipe (6) is arranged at the bottom of the shell (1), and an air outlet pipe (7) is arranged at the top of the shell (1); the shell (1) is provided with a plurality of water outlets (8) between the adjacent partition plates (3); the side wall of the shell (1) is provided with a channel (9) which is communicated with the water outlet (8) and a water drainage pipe (10) outside the shell (1); the device can effectively remove foam in carbon dioxide recovered in a beer brewing process.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon dioxide recovery and utilization, and specifically relates to a carbon dioxide defoaming device. Background Art

[0002] In beer production, after the fermentation tank is empty, the main equipment is the fermentation tank. When the fermentation tank is aged, if the wine comes into contact with oxygen when it is discharged, the wine will be oxidized to form a serious oxidized taste, affecting the taste of the wine. Therefore, in order to avoid oxidation of the wine, CO2 gas will be filled in the fermentation tank to ensure positive pressure in the tank to deliver the wine. When the wine is clean and the fermentation tank needs to be washed, CO2 will react with alkali liquid to form tartar, which is attached to the inner wall of the fermentation tank and is not easy to clean, affecting the hygiene of the fermentation tank. Therefore, before washing, the CO2 in the fermentation tank should be replaced to make the concentration reach the washing concentration requirement.

[0003] If the displaced CO2 is directly discharged, it will not only pollute the air and cause problems such as the greenhouse effect, but CO2 can also be used as an industrial raw material, and its preparation requires energy and raw materials. If it is directly discharged, it will also cause a waste of resources.

[0004] The Chinese invention patent with publication number CN102851163B discloses a process for recycling and utilizing carbon dioxide, specifically, it relates to a process for recycling and utilizing carbon dioxide in beer production, which belongs to the field of waste gas treatment technology, and includes a gas purification unit, a gas storage and compression unit, a drying unit, an adsorption unit, a refrigeration compression unit and a recycling unit; the drying unit uses silica gel as a desiccant, double tower drying, removes moisture, and avoids the moisture in carbon dioxide affecting the quality of products such as beer, the adsorption unit uses activated carbon and synthetic sodium zeolite as adsorbents to remove volatile substances and water-insoluble bad gases, the purpose of the refrigeration compression unit is to convert the gas into a liquid that is easy to store, and the recycling unit is to vaporize the liquid carbon dioxide for recycling and use during beer filling. The present invention uses a combination of chemical and physical methods to purify and recycle carbon dioxide, the recycled carbon dioxide has high purity and low energy consumption, and the brewery can use it to fill beer, which has significant economic and environmental benefits.

[0005] The gas purification unit in the above-mentioned device includes a demister, and the demister only includes an atomizing nozzle, a foam detection sensor and a water supply pipeline. The foam, residual yeast and residual fermentation liquid in the CO2 are cleaned and removed by water sprayed from the atomizing nozzle. This structure is too simple and cannot effectively remove the foam, residual yeast and residual fermentation liquid in the CO2. Especially when the CO2 circulation rate is large and fast, it is easy for some CO2 to fail to be effectively sprayed and enter the next treatment equipment, affecting the treatment effect of the subsequent treatment equipment. Summary of the invention

[0006] The purpose of the utility model is to solve the problems mentioned in the background technology and to provide a carbon dioxide defoaming device which can effectively remove foam in carbon dioxide recovered in the beer brewing process.

[0007] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0008] A carbon dioxide defoaming device comprises a shell and a plurality of flushing devices, wherein the flushing device comprises a partition and a plurality of nozzles, wherein the nozzles are arranged at the bottom of the partition and are connected to a water inlet pipe; a plurality of conduits and through holes connected to the conduits are arranged on the partition; a plurality of flushing devices are arranged in the shell at intervals from top to bottom; an air inlet pipe is arranged at the bottom of the shell, and an air outlet pipe is arranged at the top of the shell; a plurality of drain outlets are arranged on the shell between adjacent partitions; a channel is provided on the side wall of the shell to connect the drain outlet with a drain pipe outside the shell.

[0009] Preferably, the upper end of the conduit is bent downward.

[0010] Preferably, the conduits on adjacent layer separators are staggered in horizontal plane projection.

[0011] Preferably, the drain pipe is provided with a plurality of branch pipes, and the branch pipes are connected to the nozzle; the drain pipe is arranged on the shell, and the drain pipe is connected to a water supply device.

[0012] Preferably, the bottom of the drain outlet is in contact with the upper surface of the lower partition between two adjacent partitions.

[0013] Preferably, the shell is provided with a liquid storage cavity below the lowest partition, and the channel is connected with the drain port and the liquid storage cavity; the drain pipe is arranged at the bottom end of the shell and is connected with the liquid storage cavity.

[0014] Preferably, the shell is provided with an observation window at the position of the liquid storage cavity.

[0015] Preferably, a sealing plate is provided between the air inlet pipe and the liquid storage chamber; and a plurality of drainage ports are provided on the shell body above the sealing plate.

[0016] Preferably, the nozzle is an atomizing nozzle, and a plurality of nozzles are provided at the bottom of each partition.

[0017] Preferably, the edge of the partition is sealed to the inner wall of the shell.

[0018] The beneficial effects of the utility model are:

[0019] By arranging multiple flushing devices in the shell, the carbon dioxide gas recovered from the fermentation tank enters the shell through the air inlet pipe, and then passes through the conduits in each flushing device from bottom to top layer by layer. The gas is sprayed and flushed by the nozzle between two adjacent flushing devices. Because it is repeatedly flushed by multiple layers of flushing devices, it can ensure that the foam, residual yeast, residual fermentation liquid and other substances carried in the carbon dioxide gas are effectively removed.

[0020] The ducts on two adjacent partitions are staggered in horizontal projection to avoid the upper duct being located directly above the lower duct. In this way, the gas can easily flow out of the lower duct and directly enter the upper duct, and the residence time between the two partitions is too short, and it cannot be effectively sprayed and flushed. The above situation can be avoided by staggering the upper and lower ducts, so that the gas stays longer between the adjacent partitions, thereby ensuring that the gas is effectively defoamed.

[0021] The upper end of the conduit is bent downward in order to guide the gas downward so that it can stay between the two partitions longer and can be more fully sprayed and flushed by the nozzle, further ensuring that the carbon dioxide gas can be effectively defoamed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a front cross-sectional view of the device;

[0023] Figure 2 It is a bottom view of the partition;

[0024] Figure 3 is a front view of the device;

[0025] Figure 4 yes Figure 1 A partial enlarged schematic diagram in the middle.

[0026] Label names in the figure:

[0027] 1. Shell, 2. Flushing device, 3. Partition, 4. Conduit, 5. Nozzle, 6. Air inlet pipe, 7. Air outlet pipe, 8. Drain port, 9. Channel, 10. Drain pipe, 11. Water inlet pipe, 12. Liquid storage chamber, 13. Observation window. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.

[0029] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. used in the utility model are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0030] like Figure 1 and 2 As shown, a carbon dioxide defoaming device comprises a shell 1 and a plurality of flushing devices 2. The plurality of flushing devices 2 are arranged in the shell 1 at intervals up and down. A flushing space is formed between the upper and lower adjacent flushing devices 2 for flushing and defoaming the gas intake.

[0031] The flushing device 2 includes a partition 3 and a plurality of nozzles 5, wherein the nozzles 5 are arranged at the bottom of the partition 3 and are connected to a water inlet pipe 11; a plurality of nozzles 5 can be arranged at the bottom of each partition 3, and the nozzles 5 can be atomizing nozzles, which can increase the spraying area to cover the gas more comprehensively so as to effectively flush and remove foam.

[0032] The drain pipe 11 is provided with a plurality of branch pipes, and the branch pipes are connected to the nozzle 5 ; the drain pipe 11 is arranged on the housing 1 , and the drain pipe 11 is connected to a water supply device.

[0033] The partition 3 is provided with a plurality of conduits 4 and through holes connected with the conduits 4. Preferably, a plurality of conduits 3 are provided on each partition 3. Note that the water inlet pipe 11 and the nozzle 5 arranged at the bottom of the partition 3 should avoid the through holes of the partition 3 to avoid obstructing the gas flow.

[0034] The upper end of the conduit 4 is bent downward, so that the conduit 4 can guide the gas flowing in from the lower layer to the lower part of the layer (the layer here refers to the space formed between the upper and lower adjacent partitions 3, which is divided into upper and lower layers according to the upper and lower spatial position relationship), so that the gas can stay in the layer longer, and the gas can be fully sprayed and defoamed; it should be noted that the downward bending of the upper end of the conduit 4 is only a preferred solution and it is not necessary to be set in this way.

[0035] The ducts 4 on the adjacent layers of partitions 3 are staggered in the horizontal plane projection, that is, the upper duct 4 cannot be located directly above the lower duct 4, because the duct 4 is not necessarily bent. If it is vertically arranged, and the upper and lower ducts 4 completely overlap in the horizontal plane projection, then the gas flowing out through the lower duct 4 can easily flow directly into the upper duct 4 and enter the next layer. In this way, the gas stays in each layer for a short time, and it cannot be ensured that the gas is fully sprayed and flushed. The staggered arrangement of the ducts 4 in the horizontal plane projection can avoid the above situation, increase the gas residence time in each layer, and improve the defoaming effect.

[0036] An air inlet pipe 6 is provided at the bottom of the shell 1, through which the carbon dioxide gas enters the shell 1; an air outlet pipe 7 is provided at the top of the shell 1, through which the carbon dioxide gas is discharged after flushing and defoaming.

[0037] The shell 1 is provided with a plurality of drain outlets 8 between adjacent partitions 3, and the bottom of the drain outlet 8 is in contact with the upper surface of the lower partition 3 between the upper and lower adjacent partitions 3, so that the wastewater generated after the nozzle 5 sprays carbon dioxide can directly flow out through the drain outlet 8 to avoid accumulation on the partition 3; of course, even if the bottom of the drain outlet 8 is not in contact with the upper surface of the lower partition 3 between the upper and lower adjacent partitions 3, the carbon dioxide gas can be defoamed, but some wastewater will accumulate on the partition 3.

[0038] The diameter of the drain outlet 8 should be as small as possible. Effective drainage can be achieved by setting up multiple drain outlets 8, but the diameter cannot be large to ensure that each drain outlet 8 is filled with wastewater, and carbon dioxide gas will not be connected between the layers through the drain outlet 8. This can be achieved by adjusting the drainage volume of the nozzle 5 and the diameter of the drain outlet 8. As long as the drainage volume of the nozzle 5 is large enough and the diameter of the drain outlet 8 is small enough, the drain outlet 8 can be filled with wastewater without gas passing through.

[0039] The side wall of the shell 1 is provided with a channel 9 connecting the drain port 8 with a drain pipe 10 outside the shell 1 .

[0040] The shell 1 is provided with a liquid storage chamber 12 below the bottom partition 3, and the channel 9 connects the drain port 8 and the liquid storage chamber 12; the drain pipe 10 is arranged at the bottom end of the shell 1 and connected with the liquid storage chamber 12, and the drain pipe 10 is provided with a corresponding valve, which is equivalent to indirectly connecting the drain port 8 and the drain pipe 10 through the channel 9.

[0041] The housing 1 is provided with an observation window 13 at the position of the liquid storage chamber 12, which can penetrate the liquid level in the liquid storage chamber 12. If the liquid storage chamber 12 is full of waste water, the valve of the drain pipe 10 should be opened in time to drain the water.

[0042] A sealing plate 14 is provided between the air inlet pipe 6 and the liquid storage chamber 12 to isolate the two so as to prevent waste water in the liquid storage chamber 12 from flowing back into the air inlet pipe 6; a drain port 8 may also be provided on the side wall of the shell 1 on the upper surface of the sealing plate 14, and the drain port 8 is also connected to the liquid storage chamber 12 through the channel 9; of course, the nozzle 5 may not be provided at the bottom of the lowest partition plate 3, so that there is no need to provide a drain port 8 above the sealing plate 14.

[0043] The edge of the partition 3 is sealed with the inner wall of the shell 1, so as to prevent the carbon dioxide gas from leaking to the upper layer from the gap outside the conduit 4. The partition 3 and the shell 1 can be welded.

[0044] The working principle of a carbon dioxide defoaming device provided in this application is as follows:

[0045] The carbon dioxide gas to be defoamed is introduced into the shell 1 through the air inlet pipe 6, and then passes through the conduits 4 on each partition 3 from bottom to top. When the gas flows out from the conduit 4, it will be sprayed and rinsed by the water sprayed from the nozzle 5 at the bottom of the upper partition 3 to remove foam and other substances in the gas, and the waste water generated by the spraying will be discharged from the drain port 8 (note that the nozzle 5 must be turned on for spraying before the gas is introduced so that the water flow fills each drain port 8 first); after flushing by multiple flushing devices 2, the carbon dioxide gas can be effectively defoamed.

[0046] If the liquid storage chamber 12 is set large enough, or the amount of carbon dioxide gas to be defoamed is not large, the valve of the drain pipe 10 can be opened to drain the waste water after all the foam is removed. However, if the liquid storage chamber 12 is full of waste water as can be seen from the observation window 13 before complete defoaming, the valve of the drain pipe 10 should be opened in time to drain the water.

[0047] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the utility model.

Claims

1. A carbon dioxide defoaming device, characterized in that: The invention comprises a shell (1) and a plurality of flushing devices (2), wherein the flushing devices (2) comprise a partition (3) and a plurality of nozzles (5), wherein the nozzles (5) are arranged at the bottom of the partition (3), and the nozzles (5) are connected to a water inlet pipe (11); the partition (3) is provided with a plurality of conduits (4) and through holes communicating with the conduits (4); the plurality of flushing devices (2) are arranged in an upper and lower interval manner inside the shell (1); the bottom of the shell (1) is provided with an air inlet pipe (6), and the top of the shell (1) is provided with an air outlet pipe (7); the shell (1) is provided with a plurality of drain ports (8) between adjacent partitions (3); and the side wall of the shell (1) is provided with a channel (9) communicating the drain port (8) with a drain pipe (10) outside the shell (1).

2. A carbon dioxide defoaming device according to claim 1, characterized in that: The upper end of the conduit (4) is bent downward.

3. A carbon dioxide defoaming device according to claim 1, characterized in that: The conduits (4) on the adjacent layer partitions (3) are arranged in a staggered manner in horizontal plane projection.

4. A carbon dioxide defoaming device according to claim 1, characterized in that: The water inlet pipe (11) is provided with a plurality of branch pipes, and the branch pipes are connected to the spray head (5); the water inlet pipe (11) is arranged on the housing (1), and the water inlet pipe (11) is connected to a water supply device.

5. A carbon dioxide defoaming device according to claim 1, characterized in that: The bottom of the drainage port (8) is in contact with the upper surface of the lower partition (3) between the two upper and lower adjacent partitions (3).

6. A carbon dioxide defoaming device according to claim 1, characterized in that: The shell (1) is provided with a liquid storage chamber (12) below the bottommost partition plate (3); the channel (9) is connected to the drain port (8) and the liquid storage chamber (12); and the drain pipe (10) is arranged at the bottom end of the shell (1) and is connected to the liquid storage chamber (12).

7. A carbon dioxide defoaming device according to claim 6, characterized in that: The housing (1) is provided with an observation window (13) at the position of the liquid storage chamber (12).

8. A carbon dioxide defoaming device according to claim 6, characterized in that: A sealing plate (14) is provided between the air inlet pipe (6) and the liquid storage chamber (12); and the housing (1) is provided with a plurality of drainage openings (8) above the sealing plate (14).

9. A carbon dioxide defoaming device according to claim 1, characterized in that: The nozzle (5) is an atomizing nozzle, and a plurality of nozzles (5) are provided at the bottom of each partition (3).

10. A carbon dioxide defoaming device according to claim 1, characterized in that: The edge of the partition (3) is sealed to the inner wall of the shell (1).

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