A draught beer machine

Abstract

This invention provides a draft beer dispenser, belonging to the technical field of beverage drinking equipment. It solves the problem of insufficient refrigeration effect in existing draft beer dispensers. The dispenser includes a housing with a refrigeration chamber, a fan, and a water tank with a water storage chamber inside the housing. A cooling component located next to the water tank in the refrigeration chamber cools the chamber. The water tank has a temperature-conducting channel located above the cooling component and connected to the water storage chamber. An air outlet is located at the bottom of the temperature-conducting channel, and the upper end of the cooling component faces the air outlet. The fan is located above the air outlet and blows air towards it. This invention's structure allows the low-temperature gas in the water storage chamber of the water tank to be utilized to cool the refrigeration chamber, improving the utilization rate of cooling capacity and thus significantly enhancing the refrigeration effect of the draft beer dispenser.

Description

Technical Field

[0001] This invention belongs to the technical field of beverage drinking equipment, and relates to a draft beer machine. Background Technology

[0002] With the progress of the times and the improvement of people's living standards, people have higher requirements for drinking alcohol. Canned and bottled beer can no longer meet people's drinking needs. More and more people hope to drink fresh, hygienic, and delicious draft beer. A draft beer machine is a device used to cool beer. Traditional draft beer machines are used in conjunction with carbon dioxide tanks and kegs. The keg contains room temperature beer. The carbon dioxide tank applies pressure to force the beer out of the keg and into the draft beer machine. The draft beer machine cools the flowing beer before it flows out to the tap, where people can open the tap to drink the beer.

[0003] For example, a water-cooled draft beer machine disclosed in patent literature (application number: 201610887398.4) includes a housing, inside which is a refrigeration circuit including a compressor, a condenser, and refrigeration pipes. A water tank is located inside the housing, and the aforementioned refrigeration pipes are coiled within the water tank. The housing also has a refrigeration chamber for holding beer kegs and a beer dispensing pipe for connecting to the kegs. To achieve a refrigeration effect, this draft beer machine has a refrigeration box within the refrigeration chamber, inside which cold water pipes are coiled. The housing also includes a power mechanism that circulates the water in the water tank within the cold water pipes. Although this beer keg can achieve refrigeration, it suffers from insufficient refrigeration effect. Specifically, the chamber containing the water tank and the refrigeration chamber are completely separated. The refrigeration chamber relies entirely on the cooling box for cooling. Even if the water tank stores a lot of cooling water, not much cooling water can circulate in the cold water pipes that enter the cooling box. Therefore, the utilization rate of the cooling capacity is not high, resulting in insufficient refrigeration effect. This leads to a shorter shelf life of the beer in the keg in hot weather, making it prone to spoilage and affecting the quality of the beer. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a draft beer machine that solves the problem of insufficient refrigeration effect in existing draft beer machines.

[0005] The objective of this invention can be achieved through the following technical solution: A draft beer machine, comprising a box having a refrigeration chamber, wherein a fan and a water tank having a water storage chamber are provided inside the box, and a refrigeration component located next to the water tank is provided in the refrigeration chamber for cooling the refrigeration chamber, characterized in that the water tank has a temperature guiding channel located above the refrigeration component and communicating with the water storage chamber, the bottom of the temperature guiding channel has an air outlet and the upper end of the refrigeration component is directly opposite the air outlet, and the fan is located above the air outlet and can blow air to the air outlet.

[0006] Like existing technologies, the water tank of this draft beer machine also has cooling pipes and beer dispensing pipes coiled within its water storage chamber. The cooling pipes cool the water in the tank to form cooling water, while the beer dispensing pipe is also cooled, maintaining a consistently low temperature within the water storage chamber. In this design, a temperature-conducting channel is installed on the water tank, located above the cooling component and connected to the water storage chamber. This allows the low-temperature gas in the water storage chamber to flow into the temperature-conducting channel. A fan located above the air outlet blows this low-temperature gas from the temperature-conducting channel out of the air outlet. Since the upper end of the cooling component is directly opposite the air outlet, the air blown by the fan also passes over the cooling component. Therefore, the low-temperature gas in the temperature-conducting channel and the cooling capacity generated by the cooling component itself are both blown into the refrigeration chamber by the fan. In other words, this design allows the low-temperature gas in the water storage chamber of the water tank to be utilized to cool the refrigeration chamber, improving the utilization rate of cooling capacity and significantly enhancing the refrigeration effect of the draft beer machine.

[0007] In the aforementioned draft beer machine, the side panel of the water tank near the refrigeration unit is a partition. The fan is located within the temperature conduction channel. The partition has a strip-shaped, vertically arranged air guide groove on its side facing the refrigeration unit. The upper ends of the fan and the air guide groove are directly opposite each other. The fan's location within the temperature conduction channel allows for more efficient blowing of the low-temperature gas into the refrigeration chamber, improving the refrigeration effect. The air guide groove increases airflow. Because the groove is strip-shaped and vertically arranged, and its upper end faces the fan, the low-temperature gas blown by the fan can smoothly reach the refrigeration chamber through the groove, thus efficiently utilizing the low-temperature gas in the temperature conduction channel to cool the refrigeration chamber. Simultaneously, the low-temperature gas also passes through the refrigeration unit, carrying its cooling capacity into the refrigeration chamber, further enhancing the refrigeration effect.

[0008] In the aforementioned draft beer machine, the water tank has a water tank cover. This cover includes a horizontally positioned main cover. The end of the main cover near the refrigeration unit is bent downwards to form a flange. The flange, the main cover, and the partition form the aforementioned temperature-conducting channel. A ventilation gap is left between the top edge of the partition and the main cover, and the temperature-conducting channel is connected to the water storage chamber through this ventilation gap. The lower edge of the flange and the partition form the air outlet of the temperature-conducting channel. The ventilation gap allows the low-temperature gas in the water storage chamber to dissipate into the temperature-conducting channel. Since the water storage chamber of the water tank contains low-temperature cooling water, the water tank cover and the partition also have a low temperature. Therefore, the temperature-conducting channel formed by the flange, the main cover, and the partition prevents the flange, the main cover, and the partition from carrying away the cold air in the temperature-conducting channel, ensuring that the low-temperature gas in the temperature-conducting channel remains at a low temperature, thereby improving the refrigeration effect of the draft beer machine.

[0009] In the aforementioned draft beer machine, the refrigeration component is flat and angled, with its upper end resting against the side wall of the partition. The distance between the refrigeration component and the partition gradually increases from top to bottom. This angled arrangement ensures that the upper end of the refrigeration component is directly aligned with the air outlet of the temperature-conducting channel. Furthermore, the gradually increasing distance between the refrigeration component and the partition allows the low-temperature gas from the fan to flow downwards along the air guide grooves and also outwards to both sides, ensuring that the low-temperature gas is evenly distributed across the refrigeration component. This efficiently transfers the cooling energy from all parts of the refrigeration component into the refrigeration chamber, improving the refrigeration effect. Moreover, because the water storage chamber contains low-temperature cooling water, the partition also has a low temperature. When the low-temperature gas from the fan flows outwards from the air guide grooves, it also passes over the surface of the partition, carrying the cooling energy from the partition into the refrigeration chamber, further enhancing the refrigeration effect. In addition, this design makes the low-temperature gas delivered by the fan more dispersed and uniform, avoiding all of it being blown out from the air guide groove. As a result, the cold energy in the refrigerator cavity is more evenly distributed, so that there will be no large temperature difference in different parts of the refrigerator cavity.

[0010] In the aforementioned draft beer machine, a support plate is vertically connected to the bottom of the lower end of the air guide groove. The support plate abuts against the side of the cooling component facing the partition. The support plate is positioned along the length of the air guide groove and at the center of the groove's bottom. The support plate serves two purposes: firstly, it supports the inclined cooling component, ensuring its stability; secondly, because it is positioned along the length of the air guide groove and at the center of the groove's bottom, it also diverts the low-temperature gas within the groove, assisting the gas in flowing to both sides of the groove.

[0011] In the aforementioned draft beer dispenser, the two opposite sidewalls of the air guide groove are both concave arc-shaped surfaces, and both sidewalls are inclined relative to the bottom of the groove, making the width of the groove opening greater than the width of the bottom. This design facilitates the flow of some of the low-temperature gas from the fan outwards from the air guide groove, thereby improving the refrigeration effect of the draft beer dispenser as mentioned above. Furthermore, because the two opposite sidewalls of the air guide groove are concave arc-shaped surfaces, this design allows some of the low-temperature gas to be guided directly towards the cooling components as it passes through the sidewalls, thus more effectively carrying the cooling capacity of the cooling components into the refrigeration chamber and further enhancing the refrigeration effect of the draft beer dispenser.

[0012] In the aforementioned draft beer machine, the bottom edge of the partition is connected to a stepped surface extending towards the refrigeration chamber. The lower end of the air guide groove is at the same height as the stepped surface, and the lower end of the refrigeration component is higher than the stepped surface. This design allows the low-temperature gas flowing to the lower end of the air guide groove to reach the stepped surface and, guided by the stepped surface, flow into the refrigeration chamber, improving the refrigeration effect. The fact that the lower end of the refrigeration component is higher than the stepped surface prevents the low-temperature gas from being blocked by the refrigeration component as it flows from the stepped surface into the refrigeration chamber.

[0013] In the aforementioned draft beer machine, the cooling component includes several parallel temperature-conducting fins, with a meandering water pipe threaded through each fin. A water pump is installed inside the water tank to circulate cooling water through the water pipe. The pump maintains the water pipe at a low temperature by drawing cooling water from the tank into the water pipe. The meandering design of the water pipe provides a larger flow path, increasing its contact area with the temperature-conducting fins. This allows the water pipe to more effectively cool the fins, resulting in a lower temperature for the cooling component.

[0014] In the aforementioned draft beer machine, the refrigeration component is a metal plate. This metal plate includes a main body located beside a partition and within a refrigeration chamber. At least one secondary plate is integrally formed on the top edge of the main body, and the secondary plate is located within the water storage chamber of the water tank. This design is relatively simple and low-cost. Preferably, the metal plate is made of aluminum, which has good thermal conductivity. Two secondary plates are symmetrically arranged. The secondary plates extend into the water storage chamber, allowing the cooling energy from the water storage chamber to be transferred into the refrigeration chamber through the metal plate, thereby lowering the temperature of the refrigeration chamber and preserving the beer barrels placed within it.

[0015] In the aforementioned draft beer machine, the housing contains a refrigeration circuit including a compressor, a condenser, and refrigeration pipes. The refrigeration component is an evaporator plate with meandering refrigeration pipes connected to the refrigeration circuit, allowing the refrigerant in the refrigeration circuit to flow through the pipes. Because the lower-temperature refrigerant flows directly through the refrigeration pipes, the evaporator plate maintains a lower temperature, thus improving the draft beer machine's refrigeration effect.

[0016] Compared with existing technologies, this draft beer machine has the following advantages: By setting a temperature-conducting channel on the water tank, located above the refrigeration unit and connected to the water storage chamber, the low-temperature gas in the temperature-conducting channel and the cooling capacity generated by the external refrigeration unit itself can be blown into the refrigeration chamber by a fan. In other words, the structure of this invention allows the low-temperature gas in the water storage chamber of the water tank to be utilized to cool the refrigeration chamber, improving the utilization rate of cooling capacity and thus significantly improving the refrigeration effect of the draft beer machine. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the external structure of a draft beer machine.

[0018] Figure 2 This is a cross-sectional structural diagram of a draft beer machine.

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a partial cross-sectional view of the draft beer machine with some parts hidden.

[0021] Figure 5 This is a schematic diagram of the internal structure of this draft beer machine.

[0022] Figure 6 This is a schematic diagram of the water tank in this draft beer machine.

[0023] Figure 7 This is a schematic diagram of the refrigeration component in Example 1.

[0024] Figure 8 This is a schematic diagram of the installation of the refrigeration component in Example 2.

[0025] Figure 9 This is a schematic diagram of the refrigeration component in Example 2.

[0026] Figure 10 This is a schematic diagram of the refrigeration component in Example 3.

[0027] In the diagram, 1. Cabinet; 1a. Refrigeration chamber; 2. Fan; 3. Water tank; 31. Water storage chamber; 32. Temperature conduction channel; 321. Air outlet; 33. Partition; 34. Water tank cover; 341. Main cover; 342. Flanged edge; 4. Refrigeration components; 41. Temperature conduction fins; 42. Water pipe; 43. Main board; 44. Sub-board; 45. Evaporator plate; 46. Refrigeration piping; 5. Air guide groove; 51. Groove bottom; 6. Ventilation interval; 7. Support plate; 8. Stepped surface; 9. Faucet; 10. Compressor; 11. Condenser; 12. Refrigeration pipe; 13. Wine outlet pipe. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] Example 1

[0030] like Figure 1 and Figure 2As shown, this draft beer machine includes a housing 1 with a refrigeration chamber 1a. A tap 9 is connected to the outer wall of the housing 1. Inside the housing 1, there is a fan 2 and a water tank 3 with a water storage chamber 31. Inside the refrigeration chamber 1a, there is a refrigeration component 4 located next to the water tank 3, which can cool the refrigeration chamber 1a. The housing 1 contains a refrigeration circuit including a compressor 10, a condenser 11, and a refrigeration pipe 12. The refrigeration pipe 12 and the beer dispensing pipe 13 are coiled in the water storage chamber 31 of the water tank 3. The refrigerant in the refrigeration circuit can flow through the refrigeration pipe 12, so that the refrigeration pipe 12 can cool the water in the water tank 3 to form cooling water. At the same time, the beer dispensing pipe 13 is also cooled, so that the tap 9 dispenses chilled beer with a better taste.

[0031] like Figure 3 and Figure 4 As shown, the water tank 3 has a temperature-conducting channel 32 located above the refrigeration component 4 and connected to the water storage chamber 31. The bottom of the temperature-conducting channel 32 has an air outlet 321, and the upper end of the refrigeration component 4 is directly opposite the air outlet 321. The fan 2 is located above the air outlet 321 and can blow air into the air outlet 321. The low-temperature gas in the water storage chamber 31 can flow into the temperature-conducting channel 32, and the fan 2 located above the air outlet 321 can blow the low-temperature gas in the temperature-conducting channel 32 out from the air outlet 321. Since the upper end of the refrigeration component 4 is directly opposite the air outlet 321, the air blown out by the fan 2 will also pass through the refrigeration component 4. Therefore, the low-temperature gas in the temperature-conducting channel 32 and the cooling capacity generated by the external refrigeration component 4 can both be blown into the refrigeration chamber 1a by the fan 2. In other words, the structure of this case allows the low-temperature gas in the water storage chamber 31 of the water tank 3 to be used to cool the refrigeration chamber 1a, thereby improving the utilization rate of the cooling capacity and significantly improving the refrigeration effect of the draft beer machine.

[0032] Specifically, Figure 4 As shown, the top of the water tank 3 has a water tank cover 34, which includes a horizontally arranged main cover 341. The end of the main cover 341 near the cooling component 4 is bent downward to form a flange 342. A temperature conduction channel 32 is formed between the flange 342, the main cover 341 and the partition 33. A ventilation gap 6 is left between the top edge of the partition 33 and the main cover 341, and the temperature conduction channel 32 is connected to the water storage chamber 31 through the ventilation gap 6. An air outlet 321 of the temperature conduction channel 32 is formed between the lower edge of the flange 342 and the partition 33.

[0033] like Figures 4 to 6As shown, the side panel of the water tank 3 near the cooling component 4 is a partition 33. The fan 2 is located inside the temperature conduction channel 32. The partition 33 has a strip-shaped, vertically arranged air guide groove 5 on its side facing the cooling component 4. The upper ends of the fan 2 and the air guide groove 5 are directly opposite each other. The air guide groove 5 increases the amount of airflow. Because the air guide groove 5 is strip-shaped and vertically arranged, and its upper end is directly opposite the fan 2, the low-temperature gas blown out by the fan 2 can smoothly reach the refrigeration chamber 1a through the air guide groove 5, thereby efficiently utilizing the low-temperature gas in the temperature conduction channel 32 to cool the refrigeration chamber 1a. Furthermore, combined with Figure 1 and Figure 2 As shown, the cooling component 4 is flat and tilted, with its upper end resting against the side wall of the partition 33. The distance between the cooling component 4 and the partition 33 gradually increases from top to bottom. The tilted design of the cooling component 4 ensures that its upper end is directly aligned with the air outlet 321 of the temperature-conducting channel 32. Simultaneously, the gradually increasing distance between the cooling component 4 and the partition 33 allows the low-temperature gas from the fan 2 to flow downwards along the air guide groove 5 and also to flow out to both sides, ensuring that the low-temperature gas from the fan 2 is evenly distributed onto the cooling component 4. This efficiently transfers the cooling capacity from various parts of the cooling component 4 into the refrigeration chamber 1a, improving the refrigeration effect.

[0034] Combination Figure 2 and Figure 6 As shown, a support plate 7 is vertically connected to the bottom 51 of the air guide groove 5. The support plate 7 abuts against the side of the refrigeration component 4 facing the partition 33. The support plate 7 is arranged along the length of the air guide groove 5 and is located in the middle of the bottom 51 of the air guide groove 5. The function of the support plate 7 is, on the one hand, to support the inclined refrigeration component 4 and ensure its stability. On the other hand, since the support plate 7 is arranged along the length of the air guide groove 5 and is located in the middle of the bottom 51 of the air guide groove 5, it can also divert the low-temperature gas in the air guide groove 5 and assist the low-temperature gas to flow to both sides of the air guide groove 5. A stepped surface 8 extending towards the side of the refrigeration chamber 1a is also connected to the bottom edge of the partition 33. The lower end of the air guide groove 5 is set at the same height as the stepped surface 8, and the lower end of the refrigeration component 4 is higher than the stepped surface 8.

[0035] like Figure 6 As shown, the two opposite sidewalls of the air guide groove 5 are both arc-shaped concave surfaces, and the two opposite sidewalls of the air guide groove 5 are inclined relative to the bottom 51 of the groove, so that the width of the groove opening of the air guide groove 5 is greater than the width of the bottom 51 of the groove.

[0036] like Figure 7As shown, the cooling component 4 includes several parallel temperature-conducting fins 41, with a meandering water pipe 42 passing through each fin. A water pump is installed inside the water tank 3 to circulate the cooling water within the water pipe 42. By using the water pump to circulate the cooling water from the water tank 3 into the water pipe 42, the water pipe 42 is maintained at a relatively low temperature. The meandering extension of the water pipe 42 provides a larger passageway, increasing its contact area with the temperature-conducting fins 41. This allows the water pipe 42 to more effectively cool the temperature-conducting fins 41, resulting in a lower temperature for the cooling component 4.

[0037] Example 2

[0038] This embodiment is basically the same as embodiment one in structure and principle, except that: Figure 8 and Figure 9 As shown, the refrigeration component 4 is a metal plate. This metal plate includes a main body 43 located beside the partition 33 and within the refrigeration chamber 1a. At least one secondary plate 44 is integrally formed on the top edge of the main body 43, and the secondary plate 44 is located within the water storage chamber 31 of the water tank 3. This design structure is relatively simple and low in cost. Preferably, the metal plate is made of aluminum, which has good thermal conductivity. There are two secondary plates 44 arranged symmetrically. The secondary plates 44 extend into the water storage chamber 31, thereby allowing the cold air from the water storage chamber 31 to be transferred into the refrigeration chamber 1a through the metal plate, thus lowering the temperature of the refrigeration chamber 1a and preserving the wine barrels placed in the refrigeration chamber 1a.

[0039] Example 3

[0040] This embodiment is basically the same as embodiment one in structure and principle, except that: Figure 10 As shown, the refrigeration component 4 is an evaporator plate 45, on which a meandering refrigeration pipe 46 is provided. The refrigeration pipe 46 is connected to the refrigeration circuit, and the refrigerant in the refrigeration circuit can flow through the refrigeration pipe 46. Because the lower-temperature refrigerant flows directly through the refrigeration pipe 46, the evaporator plate 45 has a lower temperature, thus improving the refrigeration effect of the draft beer machine. How to allow the refrigerant to flow through the refrigeration pipe 46 is something that those skilled in the art can do based on common knowledge, and will not be described in detail here.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0042] Although this document frequently uses terms such as 1. cabinet; 1a. refrigeration chamber; 2. fan; 3. water tank; 31. water storage chamber; 32. temperature conduction channel; 321. air outlet; 33. partition; 34. water tank cover; 341. main cover; 342. flange; 4. refrigeration component; 41. temperature conduction plate; 42. water pipe; 43. main board; 44. secondary board; 45. evaporator plate; 46. refrigeration piping; 5. air guide groove; 51. groove bottom; 6. ventilation interval; 7. support plate; 8. stepped surface; 9. tap; 10. compressor; 11. condenser; 12. refrigeration pipe; 13. wine outlet pipe, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A draft beer machine, comprising a housing (1) having a refrigeration chamber (1a), wherein a fan (2) and a water tank (3) having a water storage chamber (31) are provided inside the housing (1), the water tank (3) being used to store cooling water, and a refrigeration component (4) located beside the water tank (3) for cooling the refrigeration chamber (1a), characterized in that, The water tank (3) has a temperature conduction channel (32) located above and connected to the refrigeration component (4). The bottom of the temperature conduction channel (32) has an air outlet (321) and the upper end of the refrigeration component (4) is directly opposite the air outlet (321). The fan (2) is located above the air outlet (321) and can blow air to the air outlet (321). The low-temperature gas in the temperature conduction channel (32) plus the cooling energy generated by the refrigeration component (4) can be blown by the fan (2) into the cold storage chamber (1a).

2. The draft beer machine according to claim 1, characterized in that, The side plate of the water tank (3) near the cooling component (4) is a partition (33). The fan (2) is located in the temperature conduction channel (32). The partition (33) has a strip-shaped and vertically arranged air guide groove (5) on the side facing the cooling component (4). The upper port of the fan (2) and the air guide groove (5) are directly opposite each other.

3. The draft beer machine according to claim 1, characterized in that, The top of the water tank (3) has a water tank cover plate (34), which includes a horizontally arranged main cover plate (341). The end of the main cover plate (341) near the cooling component (4) is bent downward to form a flange (342). The flange (342), the main cover plate (341) and the partition plate (33) form the aforementioned temperature conduction channel (32). The top edge of the partition plate (33) and the main cover plate (341) are left with a ventilation gap (6), and the temperature conduction channel (32) is connected to the water storage chamber (31) through the ventilation gap (6). The lower edge of the flange (342) and the partition plate (33) form the air outlet (321) of the temperature conduction channel (32).

4. The draft beer machine according to claim 2, characterized in that, The refrigeration component (4) is flat and is inclined. The upper end of the refrigeration component (4) is attached to the side wall of the partition (33). The distance between the refrigeration component (4) and the partition (33) gradually increases from top to bottom.

5. The draft beer machine according to claim 4, characterized in that, The lower end of the bottom (51) of the air guide groove (5) is also vertically connected to a support plate (7). The support plate (7) abuts against the side of the cooling component (4) facing the partition (33). The support plate (7) is arranged along the length of the air guide groove (5) and is located in the middle of the bottom (51) of the air guide groove (5).

6. The draft beer machine according to claim 5, characterized in that, The two opposite sidewalls of the air guide groove (5) are both arc-shaped concave surfaces, and the two opposite sidewalls of the air guide groove (5) are inclined relative to the bottom (51) of the groove, so that the width of the groove opening of the air guide groove (5) is greater than the width of the bottom (51).

7. The draft beer machine according to claim 2, 4, 5, or 6, characterized in that, The bottom edge of the partition (33) is also connected to a stepped surface (8) extending toward the side of the refrigeration chamber (1a). The lower end of the air guide groove (5) is set at the same height as the stepped surface (8), and the lower end of the refrigeration component (4) is higher than the stepped surface (8).

8. The draft beer machine according to any one of claims 1 to 6, characterized in that, The refrigeration component (4) includes several parallel temperature-conducting plates (41), and a meandering water pipe (42) is provided on the temperature-conducting plates (41). The water tank (3) is equipped with a water pump that draws the cooling water in the water tank (3) into the water pipe (42) for circulation.

9. The draft beer machine according to any one of claims 1 to 6, characterized in that, The refrigeration component (4) is a metal plate, which includes a main body (43) located beside the partition (33) and inside the refrigeration cavity (1a). At least one secondary body (44) is integrally formed on the top edge of the main body (43), and the secondary body (44) is located inside the water storage cavity (31) of the water tank (3).

10. The draft beer machine according to any one of claims 1 to 6, characterized in that, The housing (1) is provided with a refrigeration circuit including a compressor (10), a condenser (11) and a refrigeration pipe (12). The refrigeration component (4) includes an evaporator plate (45), and a meandering refrigeration pipe (46) is provided on the evaporator plate (45). The refrigeration pipe (46) is connected to the refrigeration circuit and the refrigerant in the refrigeration circuit can flow through the refrigeration pipe (46).

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