Recycling device for volatile exhaust gas of carbon dioxide storage tank

Abstract

The utility model discloses a carbon dioxide storage tank volatile exhaust gas recycling device which comprises a cooling box, a storage tank body, a screw type ammonia refrigerator and a recycling box. A liquid inlet and a liquid outlet of the screw type ammonia refrigerator are provided with a liquid inlet pipe used for sucking cooling liquid in the cooling box and a liquid outlet pipe used for conveying the cooling liquid into the cooling box correspondingly, and a cooling mechanism used for cooling the cooling liquid in the screw type ammonia refrigerator in the process that the cooling liquid is conveyed by the liquid inlet pipe is arranged outside the screw type ammonia refrigerator. The cooling mechanism comprises a shell and a fan. According to the cooling device, the shell and the fan are installed, in the circulation process of cooling liquid, the fan blows external air into the air inlet bin through the air pipe, the air enters the heat dissipation bin through the heat dissipation holes and exchanges heat with the cooling liquid in the liquid inlet pipe, and therefore the temperature of the cooling liquid is reduced, the cooling liquid is cooled before entering the screw type ammonia refrigerator, and the cooling effect is improved. And the refrigeration efficiency of the refrigerator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide storage tanks, in particular to a device for recovering and reusing volatile exhaust gas from a carbon dioxide storage tank. Background Art

[0002] At present, in the process of recycling and storing carbon dioxide, the carbon dioxide is generally directly liquefied by a freezer and then flows into a storage tank. The liquid carbon dioxide in the storage tank will have a certain amount of volatilization and exhaust, which will cause some carbon dioxide to be lost. Therefore, it is necessary to apply a carbon dioxide storage tank volatile exhaust gas recovery and reuse device, which is a device specially designed to recover and reuse the gas volatilized from the carbon dioxide storage tank;

[0003] Nowadays, most of the volatile exhaust gas recovery and reuse devices of carbon dioxide storage tanks use coolant to absorb and remove the heat in the gas to achieve the liquefaction of carbon dioxide gas. However, in actual operation, if the coolant flow is insufficient, the temperature is too high, or the cooling pipe design is unreasonable, the coolant may not be able to absorb and remove the heat of the gas in the cooling pipe in time, which may lead to a decrease in the cooling effect, affect the liquefaction efficiency of carbon dioxide, and may even cause unstable operation or failure of the device. Utility Model Content

[0004] The purpose of the utility model is to provide a device for recovering and recycling volatile exhaust gas from a carbon dioxide storage tank, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A device for recovering and reusing volatile exhaust gas from a carbon dioxide storage tank comprises a cooling box, a storage tank body, a screw ammonia refrigerator and a recovery box. The cooling box is filled with coolant. The liquid inlet and liquid outlet of the screw ammonia refrigerator are respectively provided with a liquid inlet pipe for absorbing the coolant in the cooling box and a liquid outlet pipe for conveying the coolant into the cooling box. The outside of the screw ammonia refrigerator is provided with a cooling mechanism for cooling the coolant therein during the process of conveying the coolant through the liquid inlet pipe. The cooling mechanism comprises a shell and a fan.

[0007] Preferably, a cooling pipe is provided inside the cooling box, a delivery pipe is connected to the feed end of the cooling pipe, a one-way air valve is provided on the delivery pipe, a drain pipe is connected to the discharge end of the cooling pipe, and one end of the drain pipe is communicated with the interior of the storage tank body.

[0008] Preferably, a gas recovery pipe 1 is provided on the storage tank body, an electric valve 1 is provided on the end of the gas recovery pipe 1 close to the storage tank body, one end of the gas recovery pipe 1 is connected to the air inlet of the recovery box, a one-way air valve 2 is provided on the end of the gas recovery pipe 1 close to the recovery box, a gas recovery pipe 2 is installed at the air outlet of the recovery box, an electric valve 2 is provided on the end of the gas recovery pipe 2 close to the recovery box, one end of the gas recovery pipe 2 is connected to the air inlet at one end of the delivery pipe, and a one-way air valve 3 is provided on the end of the gas recovery pipe 2 close to the delivery pipe.

[0009] Preferably, the screw-type ammonia refrigerator is provided with a shell on the outside, and an air inlet bin and a heat dissipation bin are respectively provided inside the shell, and the air inlet bin and the heat dissipation bin are communicated with each other through multiple groups of heat dissipation holes, and a part of the liquid inlet pipe is located inside the heat dissipation bin. A protective shell is fixedly provided on the outside of the screw-type ammonia refrigerator, and a fan with an air inlet end located outside the protective shell is fixedly provided inside the protective shell. An air duct is installed at the air outlet end of the fan, and one end of the air duct extends to the inside of the air inlet bin.

[0010] Preferably, the inner top and inner bottom of the cooling box are respectively fixed with a uniform liquid inlet and a uniform liquid outlet, and the uniform liquid inlet and the uniform liquid outlet are each provided with multiple groups of holes, one end of the liquid inlet pipe is connected to the interior of the uniform liquid outlet, and one end of the liquid outlet pipe is connected to the interior of the uniform liquid inlet.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model is equipped with a housing and a fan. During the coolant circulation process, the fan blows external air into the air inlet compartment through the air duct. The air enters the heat dissipation compartment through the heat dissipation holes and exchanges heat with the coolant in the liquid inlet pipe, thereby reducing the temperature of the coolant. The coolant is cooled before entering the screw ammonia refrigerator, thereby improving the refrigeration efficiency of the refrigerator.

[0013] 2. The utility model is equipped with a uniform liquid inlet component and a uniform liquid outlet component. When the cooling liquid enters the cooling box through the liquid inlet pipe, it will enter the interior of the uniform liquid inlet component. Since there are multiple groups of holes on the component, the cooling liquid can be distributed to various parts of the cooling box in a more uniform manner through these holes, and the uniform liquid outlet component also uses multiple groups of holes to achieve uniform outflow of the cooling liquid, ensuring that the cooling liquid can also maintain a uniform distribution when flowing out, thereby further improving the cooling effect, achieving uniform distribution and flow of the cooling liquid, thereby improving the cooling effect, and enabling the cooling box to better meet various cooling needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the shell structure of the utility model;

[0016] Figure 3 This is a structural schematic diagram of the uniform liquid inlet component of the utility model.

[0017] In the figure: 1. Cooling box; 2. Delivery pipe; 3. One-way air valve 1; 4. Cooling pipe; 5. Storage tank body; 6. Drain pipe; 7. Screw ammonia refrigerator; 8. Liquid outlet pipe; 9. Liquid inlet pipe; 10. Recovery box; 11. Gas recovery pipe 1; 12. Electric valve 1; 13. One-way air valve 2; 14. Gas recovery pipe 2; 15. Electric valve 2; 16. One-way air valve 3; 17. Shell; 18. Fan; 19. Air inlet bin; 20. Heat dissipation bin; 21. Heat dissipation hole; 22. Protective shell; 23. Air duct; 24. Uniform liquid inlet part; 25. Uniform liquid outlet part; 26. Hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 3 A device for recovering and recycling volatile exhaust gas from a carbon dioxide storage tank comprises a cooling box 1, a storage tank body 5, a screw ammonia refrigerator 7 and a recovery box 10. The cooling box 1 is filled with coolant. The liquid inlet and liquid outlet of the screw ammonia refrigerator 7 are respectively provided with a liquid inlet pipe 9 for sucking the coolant from the cooling box 1 and a liquid outlet pipe 8 for conveying the coolant into the cooling box 1. The outside of the screw ammonia refrigerator 7 is provided with a cooling mechanism for cooling the coolant in the process of conveying the coolant through the liquid inlet pipe 9. The cooling mechanism comprises a shell 17 and a fan 18. The cooling box 1 is filled with coolant for cooling the gas volatilized from the storage tank to liquefy it for subsequent recovery. Collection and reuse, the storage tank body 5 is a container for storing carbon dioxide, and the screw ammonia refrigerator 7 is a refrigeration equipment for reducing the temperature of the coolant, thereby improving its cooling effect. Its liquid inlet and liquid outlet are connected to the cooling box 1 through the liquid inlet pipe 9 and the liquid outlet pipe 8 respectively, forming a coolant circulation. Through the installation of the shell 17 and the fan 18, during the coolant circulation process, the fan 18 blows external air into the air inlet bin 19 through the air duct 23, and the air enters the heat dissipation bin 20 through the heat dissipation holes 21, and exchanges heat with the coolant in the liquid inlet pipe 9, thereby reducing the temperature of the coolant, so that the coolant has been cooled before entering the screw ammonia refrigerator 7, thereby improving the refrigeration efficiency of the refrigerator.

[0020] See also Figure 1 , a cooling pipe 4 is provided inside the cooling box 1, a delivery pipe 2 is connected to the feeding end of the cooling pipe 4, a one-way gas valve 3 is provided on the delivery pipe 2, a drain pipe 6 is connected to the discharge end of the cooling pipe 4, and one end of the drain pipe 6 is communicated with the interior of the storage tank body 5, a gas recovery pipe 11 is provided on the storage tank body 5, an electric valve 12 is provided on the end of the gas recovery pipe 11 close to the storage tank body 5, one end of the gas recovery pipe 11 is connected to the air inlet of the recovery box 10, and a one-way gas valve 3 is provided on the end of the gas recovery pipe 11 close to the recovery box 10. A gas recovery pipe 2 14 is installed at the outlet of the recovery box 10. An electric valve 2 15 is provided on the end of the gas recovery pipe 2 14 close to the recovery box 10. One end of the gas recovery pipe 2 14 is connected to the air inlet at one end of the delivery pipe 2, and a one-way valve 3 16 is provided on the end of the gas recovery pipe 2 close to the delivery pipe 2. The volatile carbon dioxide gas first enters the cooling pipe 4 in the cooling box 1 through the delivery pipe 2. The one-way valve 3 provided on the delivery pipe 2 ensures that the gas can only flow into the cooling pipe 4 in one direction, and the cooling pipe 4 in the cooling box 1 is cooled. The liquid is used to absorb the heat in the gas in the cooling pipe 4 to cool it and liquefy it. The liquefied carbon dioxide and the remaining gas flow back into the storage tank body 5 through the drain pipe 6. The gas recovery pipe 11 provided on the storage tank body 5 is used to transport the incompletely liquefied carbon dioxide gas outward. The electric valve 12 provided at one end of the gas recovery pipe 11 close to the storage tank body 5 controls the outflow of the gas. The gas flows to the recovery box 10 through the gas recovery pipe 11. The one-way valve 13 ensures that the gas can only flow in one direction. The recovery box 10 may include further processing devices. , such as a compressor or a dryer, to prepare for the reuse of the gas. The treated gas can be returned to the air inlet of the delivery pipe 2 through the gas recovery pipe 2 14 to form a cycle. The electric valve 2 15 provided at one end of the gas recovery pipe 2 close to the recovery box 10 and the one-way gas valve 3 16 provided at one end of the delivery pipe 2 respectively control the outflow of the gas and ensure the one-way flow of the gas, so that the treated gas can re-enter the cooling pipe 4 for liquefaction. By controlling the operation of each valve and the refrigerator, the effective recovery, liquefaction and reuse of the volatile gas are achieved.

[0021] See also Figure 2The screw ammonia refrigerator 7 is provided with a shell 17 on the outside, and an air intake bin 19 and a heat dissipation bin 20 are respectively provided inside the shell 17, and the air intake bin 19 and the heat dissipation bin 20 are connected through a plurality of heat dissipation holes 21. A part of the liquid inlet pipe 9 is located inside the heat dissipation bin 20, and a protective shell 22 is fixedly provided on the outside of the screw ammonia refrigerator 7. A fan 18 with an air inlet end located outside the protective shell 22 is fixedly provided inside the protective shell 22, and an air duct 23 is installed at the air outlet end of the fan 18, and one end of the air duct 23 extends to the inside of the air intake bin 19. The air intake bin 19 is located inside the shell 17 for receiving external air. The heat dissipation bin 20 is also located inside the shell 17, and is connected to the air intake bin 19 through a plurality of heat dissipation holes 21. The heat dissipation holes 21 allow air to flow between the two chambers, thereby realizing heat exchange. A part of the liquid inlet pipe 9 The branch pipe body is located inside the heat dissipation bin 20, so that the coolant can be cooled by the cold air in the heat dissipation bin 20 when flowing through the liquid inlet pipe 9. The fan 18 is fixedly arranged inside the protective shell 22, and its air inlet end is located outside the protective shell 22 for extracting external air. The air outlet end of the fan 18 is connected to the air inlet bin 19 through the air duct 23, so that the air extracted by the fan 18 can be directly sent into the air inlet bin 19, and then enter the heat dissipation bin 20 through the heat dissipation holes 21, and exchange heat with the coolant in the liquid inlet pipe 9. During the coolant circulation process, the fan 18 blows external air into the air inlet bin 19 through the air duct 23, and the air enters the heat dissipation bin 20 through the heat dissipation holes 21, and exchanges heat with the coolant in the liquid inlet pipe 9, thereby reducing the temperature of the coolant, so that the coolant is cooled before entering the screw ammonia refrigerator 7, thereby improving the refrigeration efficiency of the refrigerator.

[0022] See also Figure 3, the inner top and inner bottom of the cooling box 1 are respectively fixed with a uniform liquid inlet part 24 and a uniform liquid outlet part 25, and a plurality of groups of holes 26 are provided on the uniform liquid inlet part 24 and the uniform liquid outlet part 25. One end of the liquid inlet pipe 9 is connected to the interior of the uniform liquid outlet part 25, and one end of the liquid outlet pipe 8 is connected to the interior of the uniform liquid inlet part 24. The uniform liquid inlet part 24 is located at the inner top of the cooling box 1. When the cooling liquid enters the cooling box 1 through the liquid inlet pipe 9, it enters the interior of the uniform liquid inlet part 24. Since there are multiple groups of holes 26 on this component, the cooling liquid can be distributed to each part of the cooling box 1 in a more uniform manner through these holes 26. Part, and the uniform liquid outlet part 25 is located at the inner bottom of the cooling box 1, which also realizes the uniform outflow of the cooling liquid through multiple groups of holes 26. When the cooling liquid completes the cooling task in the cooling box 1, it will flow into the liquid outlet pipe 8 through the holes 26 on the uniform liquid outlet part 25, and finally be discharged from the cooling box 1, ensuring that the cooling liquid can also maintain a uniform distribution when flowing out, thereby further improving the cooling effect, ensuring that the cooling liquid can be evenly and effectively distributed inside the cooling box 1, realizing the uniform distribution and flow of the cooling liquid, thereby improving the cooling effect, and enabling the cooling box 1 to better meet various cooling needs.

[0023] Working principle: the cooling box 1 is filled with coolant, which is used to cool the gas volatilized from the storage tank and liquefy it for subsequent recovery and reuse. The storage tank body 5 is a container for storing carbon dioxide. The screw ammonia refrigerator 7 is a refrigeration device used to reduce the temperature of the coolant, thereby improving its cooling effect. Its liquid inlet and liquid outlet are connected to the cooling box 1 through the liquid inlet pipe 9 and the liquid outlet pipe 8 respectively, forming a coolant circulation. Through the installation of the shell 17 and the fan 18, during the coolant circulation process, the fan 18 blows external air into the air inlet bin 19 through the air duct 23, and the air enters the heat dissipation bin 20 through the heat dissipation holes 21, and exchanges heat with the coolant in the liquid inlet pipe 9, thereby reducing the temperature of the coolant and making the coolant enter the screw ammonia refrigerator 7. The temperature has been lowered before, which improves the refrigeration efficiency of the freezer. The volatile carbon dioxide gas first enters the cooling pipe 4 in the cooling box 1 through the delivery pipe 2. The one-way gas valve 3 arranged on the delivery pipe 2 ensures that the gas can only flow into the cooling pipe 4 in one direction. The coolant in the cooling box 1 is used to absorb the heat in the gas in the cooling pipe 4 to cool it and liquefy it. The liquefied carbon dioxide and the remaining gas flow back into the storage tank body 5 through the drain pipe 6. The gas recovery pipe 11 arranged on the storage tank body 5 is used to transport the incompletely liquefied carbon dioxide gas to the outside. The electric valve 12 arranged on the end of the gas recovery pipe 11 close to the storage tank body 5 controls the outflow of the gas. The gas flows to the recovery box 10 through the gas recovery pipe 11. The one-way gas valve 13 on the way ensures that the gas can only flow into the recovery box 10 in one direction. The recycling box 10 may include a further processing device, such as a compressor or a dryer, to prepare for the reuse of the gas. The treated gas can be returned to the air inlet of the delivery pipe 2 through the gas recycling pipe 2 14 to form a cycle. The electric valve 2 15 provided at one end of the gas recycling pipe 2 14 close to the recycling box 10 and the one-way valve 3 16 provided at one end of the delivery pipe 2 respectively control the outflow of the gas and ensure the one-way flow of the gas, so that the treated gas can re-enter the cooling pipe 4 for liquefaction. By controlling the operation of each valve and the refrigerator, the effective recovery, liquefaction and reuse of the volatile gas are achieved. The air inlet bin 19 is located inside the shell 17 for receiving external air. The heat dissipation bin 20 is also located inside the shell 17 and is connected to the air inlet bin 1 9 is connected through multiple groups of heat dissipation holes 21. The heat dissipation holes 21 allow air to flow between the two chambers, thereby realizing heat exchange. A part of the liquid inlet pipe 9 is located inside the heat dissipation chamber 20, so that the coolant can be cooled by the cold air in the heat dissipation chamber 20 when flowing through the liquid inlet pipe 9. The fan 18 is fixedly arranged inside the protective shell 22, and its air inlet end is located outside the protective shell 22 for extracting external air. The air outlet end of the fan 18 is connected to the air inlet chamber 19 through the air duct 23, so that the air extracted by the fan 18 can be directly sent into the air inlet chamber 19, and then enter the heat dissipation chamber 20 through the heat dissipation holes 21, and perform heat exchange with the coolant in the liquid inlet pipe 9. During the coolant circulation process, the fan 18 blows external air into the air inlet chamber 19 through the air duct 23.The air enters the heat dissipation chamber 20 through the heat dissipation holes 21 and exchanges heat with the coolant in the liquid inlet pipe 9, thereby reducing the temperature of the coolant and cooling the coolant before entering the screw ammonia refrigerator 7, thereby improving the refrigeration efficiency of the refrigerator. The uniform liquid inlet part 24 is located at the inner top of the cooling box 1. When the cooling liquid enters the cooling box 1 through the liquid inlet pipe 9, it enters the interior of the uniform liquid inlet part 24. Since the component is provided with multiple groups of holes 26, the cooling liquid can be distributed to various parts of the cooling box 1 in a more uniform manner through these holes 26, and the uniform liquid outlet part 25 is located at the inner top of the cooling box 1. The inner bottom of the cooling box 1 also has multiple groups of holes 26 to achieve uniform outflow of the cooling liquid. When the cooling liquid completes its cooling task in the cooling box 1, it will flow into the liquid outlet pipe 8 through the holes 26 on the uniform liquid outlet member 25 and eventually be discharged from the cooling box 1. This ensures that the cooling liquid can maintain a uniform distribution when flowing out, thereby further improving the cooling effect and ensuring that the cooling liquid can be evenly and effectively distributed inside the cooling box 1. This achieves uniform distribution and flow of the cooling liquid, thereby improving the cooling effect and enabling the cooling box 1 to better meet various cooling needs.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for recovering and reusing volatile exhaust gas from a carbon dioxide storage tank, comprising a cooling box (1), a storage tank body (5), a screw ammonia refrigerator (7) and a recovery box (10), wherein the cooling box (1) is filled with coolant, and the screw ammonia refrigerator (7) is provided with a liquid inlet (9) for absorbing the coolant in the cooling box (1) and a liquid outlet (8) for transporting the coolant into the cooling box (1) at the liquid inlet and the liquid outlet, respectively. The device is characterized in that: The screw-type ammonia refrigerator (7) is provided with a cooling mechanism on the outside thereof for cooling the coolant therein during the process of conveying the coolant through the liquid inlet pipe (9), and the cooling mechanism comprises a housing (17) and a fan (18).

2. The device for recycling volatile exhaust gas from a carbon dioxide storage tank according to claim 1, characterized in that: A cooling pipe (4) is provided inside the cooling box (1); a feeding end of the cooling pipe (4) is connected to a delivery pipe (2); a one-way air valve (3) is provided on the delivery pipe (2); a discharge end of the cooling pipe (4) is connected to a drain pipe (6), and one end of the drain pipe (6) is communicated with the interior of the storage tank body (5).

3. The device for recycling volatile exhaust gas from a carbon dioxide storage tank according to claim 2, characterized in that: The storage tank body (5) is provided with a gas recovery pipe (11), an electric valve (12) is provided on one end of the gas recovery pipe (11) close to the storage tank body (5), one end of the gas recovery pipe (11) is connected to the air inlet of the recovery box (10), a one-way air valve (13) is provided on one end of the gas recovery pipe (11) close to the recovery box (10), a gas recovery pipe (14) is installed at the air outlet of the recovery box (10), an electric valve (15) is provided on one end of the gas recovery pipe (14) close to the recovery box (10), one end of the gas recovery pipe (14) is connected to the air inlet of one end of the delivery pipe (2), and a one-way air valve (16) is provided on one end of the gas recovery pipe (14) close to the delivery pipe (2).

4. The device for recycling volatile exhaust gas from a carbon dioxide storage tank according to claim 1, characterized in that: The screw-type ammonia refrigerator (7) is provided with a shell (17) on the outside, and an air inlet bin (19) and a heat dissipation bin (20) are provided inside the shell (17), and the air inlet bin (19) and the heat dissipation bin (20) are communicated with each other through a plurality of heat dissipation holes (21). A portion of the liquid inlet pipe (9) is located inside the heat dissipation bin (20). A protective shell (22) is fixedly provided on the outside of the screw-type ammonia refrigerator (7), and a fan (18) with an air inlet end located outside the protective shell (22) is fixedly provided inside the protective shell (22). An air duct (23) is installed at the air outlet end of the fan (18), and one end of the air duct (23) extends to the inside of the air inlet bin (19).

5. The device for recycling volatile exhaust gas from a carbon dioxide storage tank according to claim 4, characterized in that: A uniform liquid inlet (24) and a uniform liquid outlet (25) are fixedly provided on the inner top and inner bottom of the cooling box (1), respectively. The uniform liquid inlet (24) and the uniform liquid outlet (25) are both provided with a plurality of groups of holes (26). One end of the liquid inlet pipe (9) is connected to the interior of the uniform liquid outlet (25), and one end of the liquid outlet pipe (8) is connected to the interior of the uniform liquid inlet (24).

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