Storage device for food-grade carbon dioxide
By designing a food-grade carbon dioxide storage device including pistons, conduits, solenoid valves and hydraulic cylinders, the problem of existing devices being unable to independently boost and vapour easily is solved, and efficient carbon dioxide pressurized storage and resource utilization are achieved, which enhances safety.
Patent Information
- Application Number
- CN202422339477.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The existing food-grade carbon dioxide storage devices cannot be self-pressurized, and the liquid carbon dioxide preparation and purification cost is high, it is susceptible to vaporization due to temperature difference, and there is a lack of safety measures to prevent dumping and rolling.
A storage device including a storage barrel, piston, conduit, solenoid valve and hydraulic cylinder is designed. The piston is driven downward to shrink the inner cavity of the storage barrel through the hydraulic cylinder to realize pressure storage of carbon dioxide; the solenoid valve is combined with the secondary tank to temporarily store vaporized carbon dioxide to reduce resource waste; the shell is designed with a rectangular anti-rolling side.
The independent pressurized storage of food-grade carbon dioxide is realized, which reduces the vaporization loss of liquid carbon dioxide, enhances the safety of the device, and reduces the cost of preparation and purification.
Smart Images
Figure CN223004814U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbon dioxide storage, in particular to a storage device for food-grade carbon dioxide. Background Art
[0002] For the utilization rate of flue gas, carbon dioxide in the flue gas is usually made into liquid carbon dioxide through water washing, impurity removal and pressurization; if stored at room temperature, the pressure of the food-grade carbon dioxide storage tank needs to be high pressure. Since the temperature of liquid carbon dioxide is low, when liquid carbon dioxide is stored in the storage tank for a long time, it will exchange heat with the surrounding environment, and the liquid carbon dioxide will become gaseous carbon dioxide, and the pressure in the storage tank will change, which poses a certain safety hazard. Usually, there is a pressure gauge to directly reflect how much carbon dioxide is inside.
[0003] At present, the storage devices for food-grade carbon dioxide on the market can only release pressure and cannot boost pressure independently. The preparation and purification costs of food-grade liquid carbon dioxide are relatively high. When the storage tank is placed in the natural environment, there is a temperature difference between day and night. The liquid carbon dioxide under high temperature and low pressure is easy to vaporize, resulting in losses after vaporization. Moreover, the storage device for food-grade carbon dioxide should have measures to prevent tipping and rolling to increase its safety. Content of the Utility Model
[0004] The purpose of the utility model is to provide a storage device for food-grade carbon dioxide, so as to solve the problems that the storage devices for food-grade carbon dioxide on the market can only release pressure and cannot boost pressure independently, the preparation and purification costs of food-grade liquid carbon dioxide are relatively high, when the storage tank is placed in the natural environment, there is a temperature difference between day and night, the liquid carbon dioxide under high temperature and low pressure is easy to vaporize, resulting in losses after vaporization, and the storage device for food-grade carbon dioxide should have measures to prevent tipping and rolling to increase its safety.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A storage device for food-grade carbon dioxide, including a housing, the top center of the housing is snap-connected with a storage barrel, the top of the storage barrel is snap-connected with a barrel cover, the bottom of the barrel cover is threadedly connected to the housing, and a sealing gasket is sleeved at the connection. A piston is movably connected inside the barrel cover, sealing rings are equidistantly sleeved at the bottom of the piston, a conduit is communicated with the top of the piston, a sealing end cover is slidably connected to the surface of the conduit, the sealing end cover is threadedly connected to the top of the barrel cover, an electromagnetic valve is communicated with the top of the conduit, and connecting rods are fixedly connected to both sides. A secondary tank is communicated with the top of the electromagnetic valve, hydraulic cylinders are fixedly connected to the bottoms of the connecting rods, and the housing of the hydraulic cylinders is fixedly connected to the housing. A cooling cavity is opened inside the housing.
[0007] Preferably, the sealing ring is composed of a wide metal sealing ring, a narrow metal sealing ring and a rubber sealing ring.
[0008] Preferably, the solenoid valve is a three-way solenoid valve with a built-in pressure sensor.
[0009] Preferably, the cooling chamber and the hydraulic cylinder are distributed in a cross shape, and an inlet and an outlet are respectively arranged on both sides of the top of the cooling chamber and located on the outer shell.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0011] 1. In the present utility model, by adding movable pistons in the storage barrel and the barrel cover, when food-grade carbon dioxide needs to be pressurized, the connecting rod can be driven to descend by the hydraulic cylinders on both sides. The connecting rod drives the conduit to move downward, and the conduit drives the piston to move downward, thereby realizing the contraction of the inner cavity size of the storage barrel to achieve the pressurized storage of food-grade carbon dioxide, so as to reduce the vaporization of liquid food-grade carbon dioxide.
[0012] 2. In the present utility model, by adding a solenoid valve at the top of the conduit and connecting a secondary tank to one outlet of the solenoid valve, the vaporized carbon dioxide can be introduced into the secondary tank for temporary storage for secondary use instead of being directly discharged to the atmosphere when the vaporization of liquid food-grade carbon dioxide exceeds the pressure, which can reduce resource waste. Moreover, a cooling chamber is also arranged between the outer shell and the storage barrel, which can cooperate with an external cooling system for low-temperature liquefaction after vaporization, thereby reducing the loss caused by the vaporization of liquid food-grade carbon dioxide.
[0013] 3. In the present utility model, the outer shell is designed in a rectangular shape, which can be fixed after being poured to prevent side rolling and ensure its use safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is the front axle view of a storage device for food-grade carbon dioxide of the present utility model;
[0015] Figure 2 is the rear axle view of a storage device for food-grade carbon dioxide of the present utility model;
[0016] Figure 3 is the sectional view of a storage device for food-grade carbon dioxide of the present utility model;
[0017] Figure 4 is Figure 3 the enlarged schematic view of the structure of area A in
[0018] In the figure: 1. Outer shell; 2. Storage barrel; 3. Barrel cover; 4. Sealing gasket; 5. Piston; 6. Sealing ring; 61. Wide metal sealing ring; 62. Narrow metal sealing ring; 63. Rubber sealing ring; 7. Conduit; 8. Sealing end cover; 9. Solenoid valve; 10. Connecting rod; 11. Auxiliary tank; 12. Hydraulic cylinder; 13. Cooling cavity; 14. Inlet; 15. Outlet. Specific implementation manner
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0020] Please refer to Figures 1-4 , the present invention provides a technical solution:
[0021] A storage device for food-grade carbon dioxide, including an outer shell 1 for external protection of the storage barrel, and a rectangular design, which can prevent rolling after tipping over, and has good use safety; the center of the top of the outer shell 1 is snap-connected with a storage barrel 2, the top of the storage barrel 2 is snap-connected with a barrel cover 3, the bottom of the barrel cover 3 is threadedly connected to the outer shell 1, and a sealing gasket 4 is sleeved at the connection, using the storage barrel, the barrel cover and the outer shell to form a detachable and highly sealed food-grade carbon dioxide storage tank for storing food-grade carbon dioxide and facilitating the later maintenance of the tank body; a piston 5 is movably connected inside the barrel cover 3, sealing rings 6 are equidistantly sleeved at the bottom of the piston 5, a conduit 7 is communicated at the top of the piston 5, a sealing end cover 8 is slidably connected to the surface of the conduit 7, the sealing end cover 8 is threadedly connected to the top of the barrel cover 3, the top of the conduit 7 is communicated with a solenoid valve 9, and connecting rods 10 are fixedly connected to both sides. The top of the solenoid valve 9 is communicated with an auxiliary tank 11, and the bottoms of the connecting rods 10 are fixedly connected with hydraulic cylinders 12. The outer shell of the hydraulic cylinder 12 is fixedly connected to the outer shell 1. When in use, the hydraulic cylinder 12 is used to drive the connecting rod 10 to move downward, the connecting rod 10 drives the conduit 7 to move downward, the conduit 7 drives the piston 5 to move downward, and then the downward-moving piston 5 is used to compress the internal cavity volume of the storage barrel 2, thereby pressurizing carbon dioxide to prevent vaporization; and a solenoid valve 9 at the top of the conduit 7 is externally connected with an auxiliary tank 11, which can introduce the vaporized carbon dioxide into the auxiliary tank 11 for temporary storage for secondary use when the vaporization overpressure of the liquid food-grade carbon dioxide occurs, rather than directly discharging it to the atmosphere, which can reduce resource waste; a cooling cavity 13 is opened inside the outer shell 1 for cooling the outside of the storage barrel, facilitating the use of an external cooling and temperature reduction system for a long time to keep the liquid carbon dioxide at a certain temperature, and also facilitating the staff to monitor the temperature and pressure inside the storage device for food-grade carbon dioxide and make timely adjustments, improving its use flexibility.
[0022] In this embodiment, please refer to Figure 4 , the sealing ring 6 is composed of a wide metal sealing ring 61, a narrow metal sealing ring 62 and a rubber sealing ring 63, realizing multi-layer sealing between the piston and the inner wall of the storage barrel, and ensuring the sealing effect between the piston and the inner wall of the storage barrel.
[0023] In this embodiment, the solenoid valve 9 is a three-way solenoid valve with a built-in pressure sensor. By comparing the pressure monitoring value with the set threshold value, when the internal pressure in the storage barrel exceeds the standard due to vaporization, the storage barrel and the auxiliary tank are automatically connected to reduce the internal pressure in the storage barrel and temporarily store the vaporized carbon dioxide in the auxiliary tank.
[0024] In this embodiment, please refer to Figure 1 、 Figure 3 , the cooling cavity 13 and the hydraulic cylinder 12 are distributed in a cross shape. An inlet 14 and an outlet 15 are respectively arranged at the top of the cooling cavity 13 and on both sides of the outer shell 1 for connecting to and disconnecting from an external cooling and temperature reduction system, meeting the structural design.
[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.
[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A storage device for food-grade carbon dioxide, characterized in that: The invention comprises a shell (1), the top center of the shell (1) is snap-connected to a storage barrel (2), the top of the storage barrel (2) is snap-connected to a barrel cover (3), the bottom of the barrel cover (3) is threadedly connected to the shell (1), and a sealing gasket (4) is sleeved at the connection, a piston (5) is movably connected inside the barrel cover (3), the bottom of the piston (5) is sleeved with sealing rings (6) at equal distances, the top of the piston (5) is connected to a conduit (7), and the surface of the conduit (7) is slip-resistant. The conduit (7) is connected to a sealing end cover (8) which is threadedly connected to the top of the barrel cover (3). The top of the conduit (7) is connected to a solenoid valve (9), and both sides are fixedly connected to connecting rods (10). The top of the solenoid valve (9) is connected to a secondary tank (11), and the bottom of the connecting rod (10) is fixedly connected to a hydraulic cylinder (12). The outer shell of the hydraulic cylinder (12) is fixedly connected to the outer shell (1), and a cooling chamber (13) is provided inside the outer shell (1).
2. A food-grade carbon dioxide storage device according to claim 1, characterized in that: The sealing ring (6) is composed of a wide metal sealing ring (61), a narrow metal sealing ring (62) and a rubber sealing ring (63).
3. A food-grade carbon dioxide storage device according to claim 1, characterized in that: The solenoid valve (9) is a three-way solenoid valve with a built-in pressure sensor.
4. A food-grade carbon dioxide storage device according to claim 1, characterized in that: The cooling chamber (13) and the hydraulic cylinder (12) are distributed in a cross shape, and an inlet (14) and an outlet (15) are respectively provided at the top of the cooling chamber (13) and on both sides of the housing (1).