Commercial full-automatic coffee machine waterway system
By using a dual coffee boiler system and a dedicated water circuit design, the problems of water temperature fluctuations and incomplete milk circuit cleaning in existing coffee machines during peak hours have been solved, achieving stable temperature and effective cleaning, thus improving the user experience of the coffee machine.
Patent Information
- Application Number
- CN202423263214.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing coffee machines suffer from water temperature fluctuations during peak hours, affecting extraction rates and resulting in insufficient production capacity. Incomplete cleaning of the milk path system also leads to bacterial growth, and residual steam affects the taste of the product.
It adopts a dual coffee boiler system and dual brewers, combined with a milk circuit system that uses room temperature water and steam for cleaning. Special solenoid valves and safety valves are used to control the water pressure to ensure stable temperature and cleaning effect.
It achieves high consistency in coffee extraction, meets peak demand, thoroughly cleans the milk path system to avoid steam residue, and enhances the user experience.
Smart Images
Figure CN223886684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water circuit technology for coffee machines, and in particular to a water circuit system for a commercial fully automatic coffee machine. Background Technology
[0002] Coffee machines utilize electronic technology to automate the entire coffee-making process, including grinding, tamping, filling, brewing, and cleaning.
[0003] Currently, existing coffee machines have the following drawbacks:
[0004] a) Currently, high-capacity machines use a single coffee boiler to supply water to two coffee brewers simultaneously. During peak hours, the boiler's water temperature fluctuates significantly due to continuous brewing, affecting the coffee extraction rate and resulting in poor quality coffee. When brewing coffees such as long coffee or Americano continuously, the machine's capacity cannot keep up, and it usually has to wait for the boiler to heat up to the set temperature before it can continue to work, resulting in a poor customer experience.
[0005] b) After the milk frothing stick has been used to froth milk, there will be residual steam in the tubing. As the temperature drops, it will turn into condensate. When used a second time, the condensate from the previous use will spray out, affecting the taste of the product.
[0006] c) Cleaning the milk passage system with room temperature water is not thorough and bacteria can easily grow in the milk passage system. As milk residue gradually accumulates, it will reduce the lifespan of the milk foam making unit. If hot water from the coffee boiler is used for cleaning the milk passage, it will cause the coffee boiler temperature to drop, affecting coffee making. Utility Model Content
[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a commercial fully automatic coffee machine water system.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: a commercial fully automatic coffee machine water system, comprising a water pump, two boilers, a wastewater pan, an air pump, a steam boiler, and a fresh milk preparation unit. The water pump is connected to the two boilers via pipes, and the outlets of the two boilers are connected to brewers via pipes. An extraction valve, a hot water valve one, and a hot water valve two are installed on the pipes connecting the boilers to the corresponding brewers. The steam boiler is connected to the fresh milk preparation unit via two sets of pipes, and the steam boiler is connected to milk stick three and milk stick four via two sets of pipes. The fresh milk preparation unit is connected to milk stick one and milk stick two via two sets of pipes. The air pump is connected to two sets of pipes respectively between the steam boiler and milk stick three, and between the steam boiler and milk stick four, and both sets of pipes connected to the air pump are connected to the fresh milk preparation unit.
[0009] As a further description of the above technical solution:
[0010] Steam valve one and steam valve two are respectively connected to the two sets of pipes between the steam boiler and the fresh milk production unit, and steam valve three and steam valve four are respectively connected to the pipes between the steam boiler and milk sticks three and four.
[0011] As a further description of the above technical solution:
[0012] The pipeline between the water pump and the boiler is connected to the steam boiler via a T-shaped tee connector. The pipeline between the T-shaped tee connector and the steam boiler is equipped with a cold water valve, a water supply valve, and a drain valve.
[0013] As a further description of the above technical solution:
[0014] The first T-shaped tee connector is connected to the second T-shaped tee connector via a pipe. The second T-shaped tee connector is connected to the third T-shaped tee connector via a pipe. The third T-shaped tee connector is connected to the fresh milk production unit via a pipe.
[0015] As a further description of the above technical solution:
[0016] A mixing valve is connected to the pipe between the T-shaped tee connector and the cold water valve, and a hot water rod is also connected to the pipe between the T-shaped tee connector and the cold water valve.
[0017] As a further description of the above technical solution:
[0018] Both extraction valves are connected to the wastewater pan via pipes, the vent valve is connected to the wastewater pan via pipes, the steam boiler is connected to the wastewater pan via pipes, and the T-shaped tee connector is connected to the wastewater pan via pipes.
[0019] As a further description of the above technical solution:
[0020] Safety valve one and safety valve two are connected to the pipes connecting the water pump and the two boilers, respectively. Safety valve three is connected to the pipe connecting the steam boiler and the wastewater pan. In the two sets of pipes connected to the air pump, one set of pipes is connected to air valve one and safety valve four, and the other set of pipes is connected to air valve two and safety valve five.
[0021] This utility model has the following beneficial effects:
[0022] 1. Compared with existing technologies, this commercial fully automatic coffee machine water system adopts a dual coffee boiler system and a dual brewing system, which ensures stable temperature and high consistency of coffee extraction, meeting the peak demand of stores without requiring users to wait. The milk frothing wand uses a two-position three-way solenoid valve. When the milk frothing is completed, the 0 port will open to release the residual steam in the pipeline, and no condensate will be generated.
[0023] 2. Compared with existing technologies, the water system of this commercial fully automatic coffee machine uses room temperature water and warm water to clean the milk circuit system. It uses a mixture of steam and room temperature water. Since high temperature steam mixes with room temperature water to form warm water, the water in the coffee boiler is not lost. The machine has stable operation and the milk circuit system is cleaned more thoroughly. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of a water circuit system for a commercial fully automatic coffee machine proposed in this utility model.
[0025] Legend:
[0026] 1. Water pump; 2. Boiler; 3. Extraction valve; 4. Brewing device; 5. Wastewater tray; 6. Hot water valve one; 7. Hot water valve two; 8. Steam valve one; 9. Steam valve two; 10. Steam valve three; 11. Steam valve four; 12. Air valve one; 13. Air valve two; 14. Air pump; 15. Steam boiler; 16. Fresh milk production unit; 17. Milk stick one; 18. Milk stick two; 19. Milk stick three; 20. Milk stick four; 21. Hot water rod; 22. T-type tee connector one; 23. T-type tee connector two; 24. T-type tee connector three; 25. Mixing valve; 26. Cold water valve. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Reference Figure 1 This utility model provides a commercial fully automatic coffee machine water system, including a water pump 1, two boilers 2, a wastewater pan 5, an air pump 14, a steam boiler 15, and a fresh milk making unit 16. The water pump 1 is connected to the two boilers 2 through pipes. The outlets of the two boilers 2 are connected to brewers 4 through pipes. The pipes between the boilers 2 and the corresponding brewers 4 are equipped with extraction valves 3, hot water valve 1 6, and hot water valve 2 7. The steam boiler 15 is connected to the fresh milk making unit 16 through two sets of pipes. The steam boiler 15 is connected to milk sticks 3 19 and 4 20 through two sets of pipes. The fresh milk making unit 16 is connected to milk sticks 1 17 and 2 18 through two sets of pipes. The air pump 14 is connected to the two sets of pipes between the steam boiler 15 and milk sticks 3 19 and between the steam boiler 15 and milk sticks 4 20, respectively, and the two sets of pipes connected to the air pump 14 are both connected to the fresh milk making unit 16.
[0029] Steam valve 18 and steam valve 29 are connected to two sets of pipes between steam boiler 15 and fresh milk production unit 16, respectively. Steam valve 310 and steam valve 411 are connected to the pipes between steam boiler 15 and milk sticks 319 and 420, respectively. The pipe between water pump 1 and boiler 2 is connected to steam boiler 15 through T-type tee connector 122. Cold water valve 26, water supply valve and drain valve are installed on the pipe between T-type tee connector 122 and steam boiler 15. T-type tee connector 122 is connected to T-type tee connector 23 through a pipe. T-type tee connector 23 is connected to T-type tee connector 24 through a pipe. T-type tee connector 24 is connected to fresh milk production unit 16 through a pipe. The milk sticks are made using two-position three-way solenoid valves.
[0030] A mixing valve 25 is connected to the pipe between T-type tee connector 3 24 and cold water valve 26. A hot water rod 21 is also connected to the pipe between T-type tee connector 3 24 and cold water valve 26. Both extraction valves 3 are connected to wastewater pan 5 through pipes. The vent valve is connected to wastewater pan 5 through a pipe. Steam boiler 15 is connected to wastewater pan 5 through a pipe. T-type tee connector 23 is connected to wastewater pan 5 through a pipe. Safety valve 1 and safety valve 2 are connected to the pipes between water pump 1 and the two boilers 2, respectively. Safety valve 3 is connected to the pipe between steam boiler 15 and wastewater pan 5. In the two sets of pipes connected to air pump 14, one set of pipes is connected to air valve 1 12 and safety valve 4, and the other set of pipes is connected to air valve 2 13 and safety valve 5. Flow meters and pressure sensors are also installed on some pipes as needed.
[0031] Working principle:
[0032] a) Italian coffee: Pump 1 starts, and the water flows through two boilers 2, then to their respective extraction valves 3, then to the corresponding brewing device 4, and finally into the cup;
[0033] b) Americano; Pump 1 starts, and the water flows through two boilers 2, first through the hot water valve 6 and hot water valve 7 on the right, and then into the cup; after it finishes, the extraction valve 3 is activated, and the water flows to the corresponding brewer 4, and then into the cup.
[0034] c) Coffee pot (large cup coffee): Water pump 1 starts, and the water flows through the two boilers 2, first through the extraction valve 3, then to the corresponding brewer 4, and then into the cup; then the hot water valve 6 and hot water valve 7 on the left side are activated, and the water flows into the cup.
[0035] d) Milk maker: Steam valve 3 10 and steam valve 4 11 are started (can be started individually); at the same time, air pump 14 and air valve start working, mixing air into steam, and stop working after the set ratio is reached.
[0036] e) Automatic hot milk making: Steam valve 8 and steam valve 9 are opened (can work independently), and fresh milk is introduced into the fresh milk making unit 16, flowing to milk stick 17, and then into the cup;
[0037] f) Automatic hot milk foam making: Steam valve 18 and steam valve 29 are opened (can work independently), and air pump 14 is started at the same time to introduce fresh milk into fresh milk making unit 16, which flows to milk stick 17 and then into cup;
[0038] g) The automatic hot milk foam making and milk frother can work simultaneously, that is, steam valve 1 (8), steam valve 2 (9), steam valve 3 (10), and steam valve 4 (11) can be started at the same time and then turned off according to the set time.
[0039] h) When making coffee, the previous step can also be started simultaneously;
[0040] i) When the steam boiler 15 is short of water, the water pump 1 starts and the water supply valve of the steam boiler 15 opens, injecting the required amount of water into the steam boiler 15.
[0041] j) When steam boiler 15 needs maintenance, the empty valve of steam boiler 15 is opened, which will empty steam boiler 15.
[0042] k) Brewing machine rinsing: Water pump 1 is started, and the water flows through the two boilers 2, to their respective extraction valves 3, then to the corresponding brewing machines 4, and to the wastewater pan 5; hot water valves can be started at the same time to clean the corresponding pipes.
[0043] l) Milk circuit flushing: Water pump 1 starts and flows through T-type tee connector 1 22, T-type tee connector 23, and T-type tee connector 3 24, and enters the fresh milk production unit 16. The flushed water flows out from the milk rod in one direction and flows to the wastewater pan 5 in the other direction.
[0044] m) Deep cleaning of the milk ducts:
[0045] i. Cleaning with room temperature water: Water pump 1 is started and flows through T-type tee connector 1 22, T-type tee connector 23, and T-type tee connector 3 24, and enters the fresh milk production unit 16. The cleaned water flows out from the milk stick in one direction and flows to the wastewater tray 5 in the other direction (this step can be set as many times as needed).
[0046] ii. Warm water cleaning: Water pump 1 is started, cold water valve 26 and mixing valve 25 are opened, and warm water is injected into fresh milk making unit 16. The water after cleaning flows out from the milk stick in one direction and flows to waste water pan 5 in the other direction (this step can be set as many times as needed).
[0047] iii. The above two steps can also be performed alternately;
[0048] n) The 0 and 2 ports of the two-position three-way valve are normally open;
[0049] o) Safety valve one and safety valve two protect the two coffee boiler systems, ensuring that pressure can be released in time if the pressure is too high during the coffee extraction process;
[0050] p) Safety valve 3 protection steam boiler 15, to ensure that the pressure can be released in time when the steam pressure is too high during use;
[0051] q) Safety valves four and five protect the air system, ensuring timely pressure relief in case of excessive air pressure during milk foam making;
[0052] r) A flow meter controls the amount of water used in the coffee-making process;
[0053] s) Pressure sensors are used to provide real-time feedback on boiler pressure;
[0054] t) Hot water (the same temperature as when making coffee): Water pump 1 starts, opens the hot water valve, and flows into the cup;
[0055] u) Warm water (mixing ratio can be set), control the water temperature.
[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water system for a commercial fully automatic coffee machine, characterized in that: The system includes a water pump (1), two boilers (2), a wastewater pan (5), an air pump (14), a steam boiler (15), and a fresh milk production unit (16). The water pump (1) is connected to the two boilers (2) via pipes. The outlets of the two boilers (2) are connected to brewing devices (4) via pipes. An extraction valve (3), a hot water valve one (6), and a hot water valve two (7) are installed on the pipes connecting the boilers (2) and the corresponding brewing devices (4). The steam boiler (15) is connected to the fresh milk production unit (16) via two sets of pipes. 16) Connection: The steam boiler (15) is connected to milk bar three (19) and milk bar four (20) through two sets of pipes. The fresh milk making unit (16) is connected to milk bar one (17) and milk bar two (18) through two sets of pipes. The air pump (14) is connected to the two sets of pipes between the steam boiler (15) and milk bar three (19) and between the steam boiler (15) and milk bar four (20) through two sets of pipes respectively. Both sets of pipes connected to the air pump (14) are connected to the fresh milk making unit (16).
2. The water system for a commercial fully automatic coffee machine according to claim 1, characterized in that: Steam valve 1 (8) and steam valve 2 (9) are respectively connected to the two sets of pipes between the steam boiler (15) and the fresh milk production unit (16). Steam valve 3 (10) and steam valve 4 (11) are respectively connected to the pipes between the steam boiler (15) and milk sticks 3 (19) and 4 (20).
3. The water system for a commercial fully automatic coffee machine according to claim 2, characterized in that: The pipeline between the water pump (1) and the boiler (2) is connected to the steam boiler (15) via a T-type tee connector (22). A cold water valve (26), a water supply valve, and a drain valve are installed on the pipeline between the T-type tee connector (22) and the steam boiler (15).
4. The water system for a commercial fully automatic coffee machine according to claim 3, characterized in that: The first T-shaped tee connector (22) is connected to the second T-shaped tee connector (23) via a pipe. The second T-shaped tee connector (23) is connected to the third T-shaped tee connector (24) via a pipe. The third T-shaped tee connector (24) is connected to the fresh milk production unit (16) via a pipe.
5. The water system for a commercial fully automatic coffee machine according to claim 4, characterized in that: A mixing valve (25) is connected to the pipe between the T-type tee connector three (24) and the cold water valve (26), and a hot water rod (21) is also connected to the pipe between the T-type tee connector three (24) and the cold water valve (26).
6. The water system for a commercial fully automatic coffee machine according to claim 5, characterized in that: Both extraction valves (3) are connected to the wastewater pan (5) through pipes, the vent valve is connected to the wastewater pan (5) through pipes, the steam boiler (15) is connected to the wastewater pan (5) through pipes, and the T-type three-way connector (23) is connected to the wastewater pan (5) through pipes.
7. The water system for a commercial fully automatic coffee machine according to claim 6, characterized in that: Safety valve one and safety valve two are connected to the pipes of the water pump (1) and the two boilers (2), respectively. Safety valve three is connected to the pipes of the steam boiler (15) and the wastewater pan (5). In the two sets of pipes connected to the air pump (14), one set of pipes is connected to air valve one (12) and safety valve four, and the other set of pipes is connected to air valve two (13) and safety valve five.