CN220441871U - Carbonation system and carbonated beverage making apparatus - Google Patents

Abstract

The utility model provides a carbonation system and a carbonated beverage making apparatus. The carbonator system comprises a carbonator, a water inlet pipeline, an air inlet pipeline, a water outlet pipeline and a return pipeline, wherein the carbonator is provided with a carbon dioxide inlet, a carbonated liquid outlet and at least one water filling port; the water inlet pipeline is communicated with one of the at least one water filling port and is used for introducing liquid into the carbonator; the water outlet pipeline is communicated with the carbonated liquid outlet and is used for releasing carbonated liquid; the return line is adapted to communicate the water outlet line with one of the at least one water filling port to return carbonated liquid in the water outlet line to the carbonator. The water inlet pipeline firstly introduces water into the device for injection, and the water is contacted with carbon dioxide gas to form carbonated liquid. The carbonated liquid is then further pressurized via a return line, reintroduced into the carbonator for injection and re-contacted with carbon dioxide to further increase the solubility of the carbon dioxide.

Description

Carbonation system and carbonated beverage making apparatus

Technical Field

The present utility model relates to the technical field of carbonation devices, and more particularly to a carbonation system and a carbonated beverage making device comprising the carbonation system.

Background

Currently, carbonated liquids produced by prior art processes may suffer from insufficient bubbles, one of the main reasons being insufficient dissolution of carbon dioxide. The dissolution of carbon dioxide is greatly influenced by external factors (such as temperature, pressure, mixing degree and the like), and insufficient dissolution of carbon dioxide can lead to difficulty in keeping the taste and the bubble effect of the bubble water consistent.

Accordingly, there is a need to provide a carbonation system and a carbonated beverage making apparatus that at least partially address the above-described problems.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above problems, a first aspect of the present utility model provides a carbonation system comprising:

a carbonator provided with a carbon dioxide inlet, a carbonated liquid outlet and at least one water filling port;

a water inlet line in communication with one of the at least one water inlet for introducing liquid into the carbonator;

an air inlet pipeline which is communicated with the carbon dioxide inlet and is used for injecting carbon dioxide gas into the carbonator so that liquid in the carbonator is carbonated;

a water outlet line in communication with the carbonated liquid outlet for releasing carbonated liquid;

a return line for communicating the outlet line with one of the at least one water filling ports to return carbonated liquid in the outlet line to the carbonator.

According to the carbonation system of the first aspect of the present utility model, the water inlet line first introduces the liquid to be carbonated into the apparatus, the liquid is contacted with carbon dioxide gas, and a portion of the carbon dioxide is dissolved in the liquid to form carbonated liquid. The carbonated liquid is then reintroduced into the carbonator via the return line and contacted again with carbon dioxide, further increasing the solubility of the carbon dioxide. The present system employs a return line that not only reduces equipment complexity and cost, but also improves stability and consistency of the carbonated liquid. In addition, the device of the application has the advantages of simplicity, high efficiency, cost saving and the like, and is suitable for large-scale production of the bubble water.

Optionally, the carbonation system further includes a cooling tank for storing a cooling medium, at least a portion of the carbonator and at least a portion of the water inlet tube being positioned in the cooling tank such that the at least a portion of the carbonator and the at least a portion of the water inlet tube are submerged in the cooling medium.

According to the utility model, the cooling tank provides a stable ambient temperature for the carbonation of the liquid.

Optionally, the water inlet pipeline comprises an inlet pipeline, a cooling pipeline and an outlet pipeline which are communicated in sequence, wherein the inlet pipeline is used for introducing liquid to be carbonated, the cooling pipeline is used for being immersed in the cooling medium, and the outlet pipeline is communicated with one of the at least one water filling ports.

According to the utility model, the liquid in the water inlet pipeline is cooled, and the solubility of carbon dioxide in the liquid is increased.

Optionally, the inlet line is provided with a first pump.

According to the utility model, the first pump provides a stable water supply to the carbonator.

Optionally, the inlet line is further provided with a first check valve.

According to the utility model, the first check valve prevents the liquid in the inlet line from flowing backwards.

Optionally, the carbonator is provided with a water filling port;

the return line is connected between the water outlet line and the first pump, and is provided with a second electromagnetic valve.

According to the utility model, the return line returns the carbonated liquid in the carbonator for carbonation again.

Optionally, a portion of the inlet line upstream of the first pump is configured in the form of a coil and is for immersion in the cooling medium.

According to the present utility model, the cooling effect is enhanced by the coil configuration.

Optionally, the carbonator is provided with two water filling ports, a first water filling port and a second water filling port, and the water inlet pipeline is communicated with the first water filling port;

the return pipeline comprises a return inlet pipeline, a sub-cooling pipeline and a return outlet pipeline which are sequentially communicated, wherein the return inlet pipeline is used for being communicated with the water outlet pipeline, the sub-cooling pipeline is used for being immersed in cooling medium, and the return outlet pipeline is communicated with the second water injection port.

According to the utility model, multiple carbonation is achieved by two water injection ports and a return line arrangement.

Optionally, the return inlet line is provided with a second pump.

According to the utility model, the second pump provides pressure to the carbonated liquid reflux.

Optionally, the return inlet line is provided with a second check valve.

According to the utility model, the second check valve prevents the liquid in the return inlet line from flowing backwards.

Optionally, the sub-cooling circuit is configured as a U-tube or coil.

According to the utility model, the cooling effect is enhanced by a U-tube or coil.

Optionally, the aperture of the first water filling port is 1.5-2.8 mm, and/or,

the aperture of the second water filling port is 1.0-2.5 mm.

According to the utility model, the water injection port has reasonable aperture design.

Optionally, the cooling pipeline adopts a coil pipe.

According to the utility model, the cooling effect is enhanced by the coil.

Optionally, the coil is coiled layer by layer along the height direction of the cooling tank.

According to the utility model, the space is reasonably arranged by coil layout.

Optionally, the carbonation system further includes a nozzle disposed in the water outlet line downstream of a junction of the water outlet line and the return line.

According to the utility model, the nozzle ejects the carbonated liquid for consumption by a user.

Optionally, the air intake line is provided with a third check valve.

According to the utility model, the third check valve prevents the back flow of the air flow in the inlet line.

Optionally, the water outlet pipeline is further provided with a first electromagnetic valve, and the first electromagnetic valve is located at the upstream of the nozzle and is located at the downstream of the junction point of the water outlet pipeline and the return pipeline.

According to the utility model, the first solenoid valve can control the opening and closing of the nozzle.

Optionally, the carbonation system is further provided with a water level probe for measuring the level of liquid in the carbonator.

According to the utility model, a water level probe monitors the water level change in the carbonator.

A second aspect of the present utility model provides a carbonated beverage making device comprising:

the carbonation system according to any one of the above aspects;

a carbon dioxide storage device connected with the air inlet pipeline and used for providing carbon dioxide gas for the carbonator; and

and the liquid storage device is connected with the water inlet pipeline and is used for providing liquid to be carbonated for the carbonator.

According to the carbonated beverage making device of the second aspect of the utility model, the water inlet line first introduces the liquid to be carbonated into the apparatus, the liquid being in contact with carbon dioxide gas, part of the carbon dioxide being dissolved in the liquid to form carbonated liquid. The carbonated liquid is then reintroduced into the carbonator via the return line and contacted again with carbon dioxide, further increasing the solubility of the carbon dioxide. The present system employs a return line that not only reduces equipment complexity and cost, but also improves stability and consistency of the carbonated liquid.

Drawings

The following drawings of embodiments of the present utility model are included as part of the utility model. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

FIG. 1 is a schematic view of a carbonation system according to a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of an exemplary configuration of the carbonator shown in FIG. 1;

fig. 3 is a schematic view of a carbonation system according to a second embodiment of the present utility model.

Description of the reference numerals

10/20: carbonation system

100: carbonator

110: carbon dioxide inlet

120: carbonated liquid outlet

130: water filling port

131: first water injection port

132: second water injection port

140: water level probe

200: water inlet pipeline

210: inlet line

211: first pump

212: first check valve

220: cooling pipeline

230: outlet pipeline

300: air inlet pipeline

310: third check valve

400: water outlet pipeline

500: reflux pipeline

510: reflux inlet pipe

511: second check valve

520: sub-cooling pipeline

530: reflux outlet pipe

540: second pump

550: second electromagnetic valve

600: cooling box

610: cooling medium

700: nozzle

710: first electromagnetic valve

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that embodiments of the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the utility model.

Herein, ordinal words such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used merely to indicate relative positional relationships between the relevant portions, and do not limit the absolute positions of the relevant portions.

Herein, "equal," "same," etc. are not strictly mathematical and/or geometric limitations, but also include deviations that may be appreciated by those skilled in the art and allowed by fabrication or use, etc.

Unless otherwise indicated, numerical ranges herein include not only the entire range within both of its endpoints, but also the several sub-ranges contained therein.

The utility model provides a carbonation system for preparing a carbonated beverage and a carbonated beverage making device employing the carbonation system.

A carbonation system according to the present application will be described first with reference to the accompanying drawings.

As shown in fig. 1, in a first embodiment according to the present application, carbonation system 10 includes carbonator 100, water inlet line 200, air inlet line 300, water outlet line 400, and return line 500.

As shown in fig. 2, carbonator 100 is provided with a carbon dioxide inlet 110, a carbonated liquid outlet 120, and at least one water injection port 130. The carbonator 100 may be provided with a plurality of water injection ports 130, including for example a first water injection port 131 and a second water injection port 132.

In the first embodiment, the water inlet line 200 communicates with one of the at least one water filling port 130 for introducing liquid into the carbonator 100. In this embodiment, the water inlet line 200 is typically provided with a valve that allows a user to control the inlet of liquid by opening or closing the valve. The valve is typically located at the interface of the water inlet line 200 and may be operated manually or automatically. The water inlet line 200 is adapted to be connected to a liquid to be carbonated so that the liquid to be carbonated enters the carbonator 100 to be carbonated.

In this embodiment, the gas inlet line 300 is in communication with the carbon dioxide inlet 110 for injecting carbon dioxide gas into the carbonator 100 such that the liquid within the carbonator 100 is carbonated, creating a bubble effect. The gas inlet line 300 is connected to a carbon dioxide gas source, which may be a gas tank filled with carbon dioxide gas in advance, or an external compressed gas supply system. The intake line 300 typically has a valve or pressure controller for regulating the pressure of the carbon dioxide gas. The user can adjust the bubble concentration of the bubble water by adjusting the pressure controller to change the pressure in the tank. The intake line 300 is provided with a third check valve 310. After stopping the intake, the intake pipe 300 may be backwashed due to the negative pressure, and the carbon dioxide gas in the intake pipe 300 may be prevented from being backwashed by the third check valve 310.

In this embodiment, the water outlet line 400 communicates with the carbonated liquid outlet 120 for releasing the carbonated liquid. The water outlet line 400 is typically provided with a valve or button for controlling the flow of the bubble water. The user can control the output and stop of the bubble water by operating the valve or button to turn on and off the water flow.

In this embodiment, the return line 500 is used to communicate the outlet line 400 with one of the at least one water injection ports 130 to return carbonated liquid in the outlet line 400 to the carbonator 100. By refluxing the carbonated liquid, in carbonator 100, unconsumed carbon dioxide can react again with the carbonated liquid, and carbon dioxide can be further dissolved even if the liquid is repeatedly carbonated, thereby increasing the bubble concentration in the liquid, prolonging the persistence of bubbles, and maintaining the long-term bubbling effect thereof.

As shown in fig. 1, in some embodiments of the utility model, carbonation system 10 also includes a cooling tank 600, cooling tank 600 being configured to store a cooling medium 610. At least a portion of carbonator 100 is positioned in cooling tank 600 such that the at least a portion of carbonator 100 is submerged in cooling medium 610. Before entering the carbonator, the cooling tank 600 can cool the liquid in the pipe and the carbonator 100 effectively by the cooling medium 610, and the dissolution capacity of carbon dioxide can be maintained, and the lower temperature can improve the solubility of carbon dioxide in water, so that the bubbles in the carbonated liquid are more durable and stable. At least a portion of the water inlet line 200 is positioned in the cooling tank 600 such that the at least a portion of the water inlet line 200 is submerged in the cooling medium 610. Whereby the liquid in the water inlet line 200 is cooled to increase the solubility of carbon dioxide in the liquid. The cooling tank 600 provides a stable manufacturing environment that ensures consistency in the quality and mouthfeel of the carbonated liquid.

In some embodiments of the present application, the water inlet line 200 includes an inlet line 210, a cooling line 220, and an outlet line 230 in communication in sequence, the inlet line 210 for introducing non-carbonated liquid, the cooling line 220 for immersion in the cooling medium 610, and the outlet line 230 in communication with one of the at least one water injection port 130. The liquid in cooling line 220 is cooled prior to its injection into carbonator 100, increasing the solubility of carbon dioxide in the liquid.

The inlet line 210 is provided with a first pump 211, the pump 211 providing the required fluidity by increasing the pressure of the liquid source, allowing the liquid to enter and pass smoothly through the tubing, providing a stable water supply for the carbonator 100, and providing a jet effect at a sufficient pressure to ensure a contact area of the liquid and the gas. The inlet line 210 is also provided with a valve 212. The valve 212 is preferably a check valve 212 (check valve 212), also referred to herein as a first check valve 212, which allows only liquid to flow into the carbonator 100, preventing backflow or reverse flow of water. After the first pump 211 is stopped, the flow of water in the water inlet line 200 may rapidly flow backward due to the high pressure in the tank and cause an impact, which may cause the carbonated water to flow toward the upstream line. Providing the first check valve 212 may eliminate or reduce the impact caused by the reverse flow, improving the efficiency and stability of the carbonator 100. Alternatively, the first check valve 212 may be located upstream or downstream of the pump 211, whichever configuration the first check valve 212 functions to prevent backflow or reverse flow of water, keep the water source clean, sanitary, and ensure unidirectional flow of water to maintain stability and efficiency of the water supply.

As shown in fig. 1, the carbonator 100 is provided with a water filling port 130 as a preferred embodiment of the present utility model. The return line 500 is connected between the water outlet line 400 and the first pump 211. The return line 500 is provided with a second solenoid valve 550. The return line 500 returns the carbonated liquid in the carbonator 100 for re-cooling and carbonation. Specifically, pumped into carbonator 100 by first pump 211.

The present embodiment provides a carbonation system 10 that prepares a carbonated liquid by a single shot water injection. In the preparation process, a predetermined amount of liquid is first injected into the carbonation system by the first pump 211. After the first pump 211 is deactivated, the liquid dissolves carbon dioxide in the carbonator 100. The resulting carbonated liquid flows out of carbonator 100. The second solenoid valve 550 in the return line 500 is opened and the carbonated liquid is still pumped into the carbonator 100 by the first pump 211 to dissolve the carbon dioxide again, resulting in a carbonated liquid with a stronger foaming effect. In the embodiment, the space occupied by the equipment can be reduced by adopting one pump, so that the equipment can be more compact and flexibly distributed; meanwhile, the number of pipelines and connecting pieces is reduced, the complexity of the system is reduced, and the system is more compact and efficient; and the maintenance of the system is convenient.

In some embodiments of the present application, a portion of the inlet line 210 upstream of the first pump 211 is configured in the form of a coil, the coil-form inlet line 210 being located in the cooling tank 600 for immersion in the cooling medium 610. The inlet line 210 in the form of a coil has a larger surface area than other forms, such as a straight line, and may increase the contact area with the cooling medium 610 to enhance the cooling effect. In addition, the coil design also lengthens the flow path of the water flow, allowing the liquid to more fully contact the cooling medium 610 for a longer period of time, enhancing the cooling effect.

Similarly, the cooling circuit 220 is also preferably configured in the form of a coil.

Preferably, the coils of the cooling circuit 220 and/or the inlet circuit 210 are coiled layer by layer along the height of the cooling tank 600. For example, the coil may be repeatedly bent in an S shape. Or, the carbonator 100 and other components and pipelines can be arranged in the space surrounded by the multi-turn coil pipe to reasonably arrange the space.

In some embodiments of the present application, carbonation system 10 also includes a nozzle 700, and nozzle 700 is disposed in outlet line 400 downstream of the junction of outlet line 400 and return line 500. The user simply places a cup or bottle under the nozzle 700 and operates an operating member such as a button, so that the nozzle 700 releases the bubble water.

In some embodiments of the present application, the water outlet line 400 is further provided with a first solenoid valve 710, the first solenoid valve 710 being located upstream of the nozzle 700, downstream of the junction of the water outlet line 400 and the return line 500. The solenoid valve 710 may adjust the flow rate of the outlet water by controlling the on-off state. By adjusting the opening and closing time or frequency of the solenoid valve 710, the amount of water produced by the bubble water can be controlled to suit different needs and usage scenarios. For example, the solenoid valve 710 is electrically connected to an operating member at the nozzle 700, and the solenoid valve 710 opens or closes a waterway in response to the operating member being operated. Meanwhile, the solenoid valve 710 may be provided as a one-way valve capable of achieving one-way flow of the liquid, i.e., preventing the liquid from flowing backward in the water outlet pipe 400. This is very important to maintain the stability of the bubble water and to avoid pollution, guaranteeing the quality and hygienic safety of the beverage.

In some embodiments of the present application, as shown in fig. 2, a water level probe 140 is also provided within the carbonator 100, the water level probe 140 being used to measure the level of liquid within the carbonator 100. The water level probe 140 can obtain information on the level of the liquid in the carbonator 100 in real time by monitoring the water level changes, helping to control the beverage injection and discharge process. The water level probe 140 may be used in conjunction with a control system to ensure accuracy and stability of the injection and evacuation processes. Once the preset level is reached, the water level probe 140 may trigger a corresponding control action, such as stopping the injection or starting the discharge of the beverage. The automatic production process is facilitated, and the working efficiency is improved.

The water level probe 140 can monitor the liquid level and provide control and alarm signals for too high or too low a liquid level. If the liquid level is too high, the water supplementing in the pump can be stopped, and corresponding control measures are triggered to prevent the overflow of the beverage. If the liquid level is too low, the operator can be warned to supplement or take corresponding measures to avoid idling of the equipment. The water level probe 140 may also help monitor the normal operating conditions of the device. If abnormal water level changes are found, this may mean that the equipment is out of order or water is lost. These problems are discovered and handled in time, which can reduce equipment damage and downtime. The accuracy, stability and safety of the production process are ensured.

As shown in fig. 3, in a second embodiment according to the present application, the carbonator 100 of the carbonation system 20 is provided with two water injection ports 130, a first water injection port 131 and a second water injection port 132, respectively. The water inlet line 200 communicates with the first water filling port 131. The return line 500 is used to communicate the outlet line 400 with the second water filling port 132.

Specifically, the return line 500 includes a return inlet line 510, a sub-cooling line 520, and a return outlet line 530, which are in communication in sequence. The return inlet line 510 is for communication with the water outlet line 400, the sub-cooling line 520 is for immersion in the cooling medium 610, and the return outlet line 530 is in communication with the second water filling port 132. The return inlet line 510 is provided with a second pump 540, the second pump 540 increasing the pressure of the carbonated liquid to return it to the carbonator 100, the pressure providing a jet effect sufficient to ensure a contact area between the liquid and the gas. The return inlet line 510 is also provided with a second check valve 511 which allows liquid to flow only into the carbonator 100, preventing backflow or reverse flow of liquid within the tube. After the second pump 540 is deactivated, the liquid in the return inlet line 510 may quickly flow back and cause an impact due to the high pressure in the tank, which may result in a carbonated water flow to the upstream line. Providing the second check valve 511 may eliminate or reduce the impact caused by the reverse flow, improving the efficiency and stability of the carbonator 100. Alternatively, the second check valve 511 may be upstream or downstream of the pump 540, whichever configuration the second check valve 511 functions to prevent backflow or reverse flow of liquid.

The present embodiment provides a carbonation system 20 that prepares a carbonated liquid by a single shot water injection. In the preparation process, a predetermined amount of liquid is first injected into carbonation system 20 by first pump 211. After the first pump 211 is deactivated, the liquid enters the carbonator 100 through the first water inlet 131 to dissolve carbon dioxide, and the resulting carbonated liquid exits the carbonator 100. The second pump 540 in the return line 500 is turned on and the carbonated liquid is pumped through the second pump 540 to the second water inlet 132 into the carbonator 100 to redissolve the carbon dioxide, resulting in a carbonated liquid with a stronger foaming effect. Wherein, during the back flow of the carbonated liquid, the solution is cooled to a lower temperature by the re-cooling of the sub-cooling pipeline 520, so that the dissolution of the carbon dioxide can be enhanced, and the carbon dioxide can be fully dissolved in the beverage, thereby providing more bubbles and bubble feeling.

In some embodiments of the present application, the sub-cooling circuit 520 may be configured as a U-tube or multi-turn horizontally or vertically coiled tube for immersion in the cooling medium, increasing the length of the cooling circuit 220, thereby increasing the contact area and contact time with the cooling medium 610, providing a further cooling effect to the returning liquid. This can increase the heat transfer efficiency, making the cooling process more rapid and efficient.

In some embodiments of the present application, the aperture of the first water injection port 131 is larger than the aperture of the second water injection port 132. By providing the second water filling port 132 with a small diameter, the solution efficiency can be improved. The aperture of the first water filling port 131 is, for example, 1.5 to 2.8mm. The aperture of the second water filling port 132 is, for example, 1.0 to 2.5mm.

The non-introduced part of the second embodiment refers to the description of the first embodiment.

The carbonation system according to the present application may allow the liquid to be repeatedly carbonated by refluxing the carbonated liquid to the carbonator for carbonation therein, thereby improving the quality of the carbonated liquid.

The present application also provides a carbonated beverage making device (not shown). In a preferred embodiment, a carbonated beverage making device according to the present application comprises carbonation system 10 or 20 as described above, a carbon dioxide reservoir, and a liquid reservoir. Wherein a carbon dioxide reservoir is connected to the inlet line 300 for providing carbon dioxide gas to the carbonator 100. A liquid reserve is connected to the water inlet line 200 for providing the carbonator 100 with liquid to be carbonated (e.g., water, beverage, etc. that needs to be carbonated). It will be appreciated that a carbonated beverage making device according to the present application includes all of the features and effects of a carbonation system according to the present application.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed.

Claims (19)

1. A carbonation system, comprising:

a carbonator provided with a carbon dioxide inlet, a carbonated liquid outlet and at least one water filling port;

a water inlet line in communication with one of the at least one water inlet for introducing liquid into the carbonator;

an air inlet pipeline which is communicated with the carbon dioxide inlet and is used for injecting carbon dioxide gas into the carbonator so that liquid in the carbonator is carbonated;

a water outlet line in communication with the carbonated liquid outlet for releasing carbonated liquid;

a return line for communicating the outlet line with one of the at least one water filling ports to return carbonated liquid in the outlet line back into the carbonator.

2. The carbonation system according to claim 1, further comprising a cooling tank for storing a cooling medium, at least a portion of the carbonator and at least a portion of the water inlet line being positioned in the cooling tank such that the at least a portion of the carbonator and the at least a portion of the water inlet line are submerged in the cooling medium.

3. The carbonation system according to claim 2, wherein the water inlet line includes an inlet line for introducing a liquid to be carbonated, a cooling line for being submerged in the cooling medium, and an outlet line in communication with one of the at least one water filling port.

4. A carbonation system according to claim 3, in which the inlet line is provided with a first pump.

5. The carbonation system according to claim 4, wherein the inlet line is further provided with a first check valve.

6. The carbonation system according to claim 5, wherein the carbonation system,

the carbonator is provided with a water filling port;

the return line is connected between the water outlet line and the first pump, and is provided with a second electromagnetic valve.

7. The carbonation system according to claim 6, wherein a portion of the inlet line upstream of the first pump is configured in the form of a coil and is configured for submersion in the cooling medium.

8. The carbonation system according to claim 4, wherein the carbonator is provided with two water injection ports, a first water injection port and a second water injection port, the water inlet line being in communication with the first water injection port;

the return pipeline comprises a return inlet pipeline, a sub-cooling pipeline and a return outlet pipeline which are sequentially communicated, wherein the return inlet pipeline is used for being communicated with the water outlet pipeline, the sub-cooling pipeline is used for being immersed in cooling medium, and the return outlet pipeline is communicated with the second water injection port.

9. The carbonation system according to claim 8, wherein the return inlet line is provided with a second pump.

10. The carbonation system according to claim 8, wherein the return inlet line is provided with a second check valve.

11. The carbonation system according to claim 8, wherein the sub-cooling circuit is configured as a U-tube or coil.

12. The carbonation system according to claim 8, wherein the carbonation system,

the aperture of the first water filling port is 1.5-2.8 mm, and/or,

the aperture of the second water filling port is 1.0-2.5 mm.

13. A carbonation system according to claim 3, wherein the cooling line employs a coil.

14. The carbonation system according to claim 13, wherein the coil is coiled layer by layer along the height of the cooling tank.

15. The carbonation system according to claim 1, further comprising a nozzle disposed in the water outlet line downstream of a junction of the water outlet line and the return line.

16. The carbonation system according to claim 15, wherein the outlet line is further provided with a first solenoid valve, the first solenoid valve being located upstream of the nozzle, downstream of the junction of the outlet line and the return line.

17. The carbonation system according to claim 1, wherein the air inlet line is provided with a third check valve.

18. The carbonation system according to any one of claims 1 to 17, and also provided with a water level probe for measuring the level of liquid within the carbonator.

19. A carbonated beverage making device, comprising:

the carbonation system according to any one of claims 1 to 18;

a carbon dioxide storage device connected with the air inlet pipeline and used for providing carbon dioxide gas for the carbonator; and

and the liquid storage device is connected with the water inlet pipeline and is used for providing liquid to be carbonated for the carbonator.