Water-Cooled Draft Beer Dispenser with Dual-Stage Refrigeration
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Solution Overview
Problem
Traditional draft beer machines have a slow refrigeration speed and poor refrigeration effect due to the design where beer pipes are immersed in a water tank cooled by a compressor, leading to inefficient cooling of beer from normal temperature to serving temperature.
Innovation Solution
A water-cooled draft beer machine with a refrigeration circuit, coiled refrigeration tubes in the water tank, a power mechanism for water circulation, and a fan for air circulation between the refrigeration box and cold storage chamber, enhancing the cooling of beer by pre-cooling it before discharge and utilizing the full cooling capacity of cold water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If beer pipe is immersed in water tank cooled by compressor, then beer refrigeration is achieved, but refrigeration speed is slow
Solution Approach 1:
The invention divides the refrigeration system into two independent parts: a cold storage chamber for storing the beer cask and a water tank with coiled beer pipe for rapid cooling. This segmentation allows each part to perform its specific function optimally - the cold storage chamber maintains ambient low temperature while the water tank provides intensive heat exchange for fast refrigeration of the beer line
Solution Approach 2:
The invention introduces cold water as an intermediary cooling medium between the compressor and the beer pipe. The compressor cools water in the water tank, and this cold water then serves as the direct cooling medium for the beer pipe, improving heat transfer efficiency and refrigeration speed compared to direct air cooling
2Productivity
If beer flows quickly through water tank, then dispensing speed is improved, but refrigeration effect deteriorates
Solution Approach 1:
The system separates the beer storage function (in the cask within cold storage chamber) from the beer cooling function (in the water tank with coiled pipe). This allows the beer to be dispensed quickly through the water tank without requiring the entire beer volume to be cooled, resolving the conflict between fast dispensing and effective refrigeration
Solution Approach 2:
The cold storage chamber pre-cools the ambient environment and the beer cask before dispensing. This preliminary cooling action ensures that the beer is already at a lower temperature before it enters the water tank for final rapid cooling, improving the overall refrigeration effect without compromising dispensing speed
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly improves the refrigeration effect by maintaining a low ambient temperature in the cold storage chamber, pre-cooling the beer before discharge, and fully utilizing the cooling capacity of the cold water, resulting in a more efficient and effective cooling process.
Implementation Method 1
A water tank 17 is arranged inside the cabinet 1, and the refrigeration tubes 23 are coiled inside the water tank 17
Implementation Method 2
the refrigeration tubes 23 are coiled inside the water tank 17
Implementation Method 3
A power mechanism is arranged in the cabinet 1 to drive water in the water tank 17 to circulate in the cold water tube 4
Implementation Method 4
A fan is arranged inside the refrigeration box to drive air to circulate between the refrigeration box and the cold storage chamber
Implementation Method 5
The beer pipe 14 coils inside the water tank 17, and the outlet end of the beer pipe 14 is connected to the beer tap 13
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A water cooled draft beer machine comprises a cabinet (11, 1), and there is a refrigeration circuit (21, 2) inside the cabinet (11, 1), including a compressor (21, 22), a condenser (22, 23) and refrigeration tubes (23). A water tank (17, 2) is arranged inside the cabinet (11, 1), and the refrigeration tubes (23) are coiled inside the water tank (17, 2). Inside the cabinet (11, 1), there is a cold storage chamber (16, 17). A beer pipe (14, 15) is arranged inside the cabinet (11, 1), and a beer tap (13, 14) is connected to the outside of the cabinet (11, 1). The beer pipe (14, 15) coils inside the water tank (17, 2), and is connected to the beer tap (13, 14). A refrigeration box (31, 3) is arranged in the cold storage chamber (16, 17), and the cold water tube (41, 4) coils inside the refrigeration box (31, 3). The inlet end and the outlet end of the cold water tube (41, 4) are both connected to the water tank (17, 2). An air inlet (31, 32) and an air outlet (32, 33) are set up on the refrigeration box (31, 3). A fan (61, 6) is arranged inside the refrigeration box (31, 3).