Coffee drink equipment waterway system with cleaning function

Abstract

The utility model discloses a waterway system with a cleaning function for coffee beverage equipment. Comprising a water inlet electromagnetic valve, a water pump, a first flow meter, a first water supplementing valve, a first heater, a second flow meter, a waste water disc, a first beverage outlet, a third flow meter, a second beverage outlet, a first milk path cleaning hot water electromagnetic valve, a second milk path cleaning hot water electromagnetic valve, a hot water pressure relief electromagnetic valve, a second water supplementing valve, a second heater and a steam electromagnetic valve. The system comprises a first hot water electromagnetic valve, a second hot water electromagnetic valve, a first steam rod electromagnetic valve, a second steam rod electromagnetic valve, a first milk foam heating electromagnetic valve, a waste milk pipe, a second milk foam heating electromagnetic valve, a proportional valve, a first milk path cold water cleaning electromagnetic valve, a second milk path cold water cleaning electromagnetic valve and a boiler emptying electromagnetic valve. According to the utility model, high efficiency, stability and richness of beverage output are ensured; the automatic cleaning function is achieved, the milk path is efficiently and conveniently cleaned, cleanliness and sanitation are guaranteed, and labor cost is greatly saved.

Description

Technical Field

[0001] The utility model belongs to the field of coffee machines, and in particular relates to a water channel system for cleaning coffee beverage equipment. Background Art

[0002] With the booming global coffee market, the market needs fully automatic coffee machines that are fast, efficient and easy to maintain, and also has higher requirements for beverage quality. Coffee machines on the market generally have low production efficiency, low degree of beverage automation, inconvenient cleaning and maintenance, cannot guarantee automatic cleaning, and it is difficult to ensure hygiene.

[0003] In addition, the more popular American coffee, currently on the market, the fully automatic coffee machines generally achieve this by extending the time for hot water to pass through coffee powder. However, brewing coffee powder with hot water for a long time not only affects the taste of the coffee, but is also harmful to human health due to the high caffeine content. There are also some fully automatic coffee machines that make Italian coffee and then use hot water from the hot water circuit to dilute the concentration of Italian coffee. This not only affects the taste of the coffee, but also reduces the efficiency of cup production.

[0004] The efficiency and beverage variety of coffee machines in many convenience stores and coffee shops can no longer meet people's requirements. People need a more automated and efficient water system. Utility Model Content

[0005] The main technical problem solved by the utility model is to provide a water channel system with cleaning function for coffee beverage equipment. On the one hand, four cups of espresso can be made at the same time, while the left and right steam rods can froth milk and the left and right milk foam can be made at the same time, thereby ensuring the high efficiency, stability and richness of beverage output. On the other hand, on the basis of improving the efficiency of beverage production, the utility model also has the function of automatic cleaning, which can clean the milk channel efficiently and conveniently, ensuring cleanliness and hygiene. The automatic cleaning does not require manual intervention, thereby greatly saving labor costs.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a water system with cleaning of coffee beverage equipment, including a water inlet solenoid valve, a water pump, a first flow meter, a first water replenishment valve, a first heater, a second flow meter, a waste water tray, a first beverage outlet, a third flow meter, a second beverage outlet, a first milk circuit cleaning hot water solenoid valve, a second milk circuit cleaning hot water solenoid valve, a hot water pressure relief solenoid valve, a second water replenishment valve, a second heater, a steam solenoid valve, a first hot water solenoid valve, a second hot water solenoid valve, a first steam rod solenoid valve, a second steam rod solenoid valve, a first milk froth heating solenoid valve, a waste milk pipe, a second milk froth heating solenoid valve, a proportional valve, a first milk circuit cold water cleaning solenoid valve, a second milk circuit cold water cleaning solenoid valve and a boiler emptying solenoid valve;

[0007] Among them, the water inlet solenoid valve, the water pump and the first flow meter are connected in series to form a water inlet main line and are connected to the water supply system. The rear end of the water pump is provided with six branches in parallel, one of which is connected in series with the first water replenishment valve and the first heater, the second is connected in series with the second water replenishment valve and the second heater, the third is connected to the proportional valve, the fourth is connected to the first milk circuit cold water cleaning solenoid valve, the fifth is connected to the second milk circuit cold water cleaning solenoid valve, and the sixth is connected to the boiler emptying solenoid valve and the waste water tray. The rear end of the first heater is provided with six branches in parallel, one of which is connected to the second flow meter, the second is connected to the third flow meter, the third is connected to the first check valve and the waste water tray, the fourth is connected to the first milk circuit cleaning hot water solenoid valve, the fifth is connected to the second milk circuit cleaning hot water solenoid valve, and the sixth is connected to the hot water pressure relief solenoid valve. The rear end of the second flow meter is provided with a first coffee brewing branch, and the rear end of the third flow meter is provided with a second coffee brewing branch. The rear end of the first milk circuit cleaning hot water solenoid valve is connected to the rear end of the second milk circuit cold water cleaning solenoid valve. The rear end of the hot water solenoid valve for washing the milk circuit is connected to the rear end of the first cold water solenoid valve for washing the milk circuit, the rear end of the hot water pressure relief solenoid valve is connected to the waste water tray, the rear end of the second heater is provided with six branches in parallel, one of which is connected to the second check valve and the waste water tray, the second is connected to the steam solenoid valve, the third is connected to the first steam rod solenoid valve, the fourth is connected to the second steam rod solenoid valve, the fifth is connected to the first milk froth heating solenoid valve, and the sixth is connected to the second milk froth heating solenoid valve, the rear end of the steam solenoid valve is provided with two branches in parallel, one of which is connected in series with the first hot water solenoid valve and the first beverage outlet, and the second is connected in series with the second hot water solenoid valve and the second beverage outlet, the rear end of the first steam rod solenoid valve is provided with a first steam rod assembly, the rear end of the second steam rod solenoid valve is provided with a second steam rod assembly, the rear end of the first milk froth heating solenoid valve is provided with a first milk froth branch, the rear end of the second milk froth heating solenoid valve is provided with a second milk froth branch, and the rear end of the proportional valve is connected to the rear end of the steam solenoid valve.

[0008] In a preferred embodiment of the present invention, the first coffee brewing branch includes a first coffee extraction solenoid valve, a first brewer, a first brewer outlet solenoid valve and a first beverage outlet connected in series, a first brewer pressure relief solenoid valve is also arranged in parallel at the rear end of the first coffee extraction solenoid valve and connected to a waste water tray, and the first brewer outlet solenoid valve is also connected to the waste water tray.

[0009] In a preferred embodiment of the present invention, the second coffee brewing branch includes a second coffee extraction solenoid valve, a second brewer, a second brewer outlet solenoid valve and a second beverage outlet connected in series, a second brewer pressure relief solenoid valve connected to a waste water tray is also connected in parallel to the rear end of the second coffee extraction solenoid valve, and the second brewer outlet solenoid valve is also connected to the waste water tray.

[0010] In a preferred embodiment of the present invention, the first steam rod assembly includes a first steam rod air pump and a first steam rod arranged in parallel.

[0011] In a preferred embodiment of the present invention, the second steam rod assembly includes a second steam rod air pump and a second steam rod arranged in parallel.

[0012] In a preferred embodiment of the present utility model, the first milk froth branch includes a third check valve, a first milk circuit cleaning solenoid valve, a fourth check valve, a first milk pump, a first whisk, a first three-way milk valve and a first beverage outlet arranged in series, and two branches are also arranged in parallel at the front end of the first milk pump, one of which is connected with the fifth check valve and the first air valve, and the other is connected with the first two-way milk valve and the milk box, and a sixth check valve is also arranged in parallel at the front end of the first milk circuit cleaning solenoid valve and connected with the first whisk, the first three-way milk valve is also connected to the waste milk pipe, and the rear end of the first milk circuit cold water cleaning solenoid valve is connected to the front end of the first milk circuit cleaning solenoid valve.

[0013] In a preferred embodiment of the present utility model, the second milk froth branch includes a seventh check valve, a second milk circuit cleaning solenoid valve, an eighth check valve, a second milk pump, a second whisk, a second three-way milk valve and a second beverage outlet arranged in series, and two branches are also arranged in parallel at the front end of the second milk pump, one of which is connected to the ninth check valve and the second air valve, and the other is connected to the second two-way milk valve and the milk box, and the front end of the second milk circuit cleaning solenoid valve is also provided with a tenth check valve in parallel to connect to the second whisk, the second three-way milk valve is also connected to the waste milk pipe, and the rear end of the second milk circuit cold water cleaning solenoid valve is connected to the front end of the second milk circuit cleaning solenoid valve.

[0014] The beneficial effects of the utility model are as follows: the utility model points out a water system with cleaning for a coffee beverage device, which, on the one hand, can realize the simultaneous production of four cups of espresso, while satisfying the milk whipping work of the left and right steam rods and the simultaneous production of the left and right milk foam, thereby ensuring the high efficiency, stability and richness of the beverage output; on the other hand, on the basis of improving the efficiency of beverage production, it also has the function of automatic cleaning, which can clean the milk circuit efficiently and conveniently, ensuring cleanliness and hygiene, and the automatic cleaning does not require manual intervention, thereby greatly saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1The utility model is a water circuit diagram of a preferred embodiment of a water circuit system for cleaning a coffee beverage device. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 As shown, the embodiment of the utility model includes:

[0019] A water system for cleaning a coffee beverage device, comprising a water inlet solenoid valve 1, a water pump 36, a first flow meter 37, a first water supply valve 2, a first heater 34, a second flow meter 38, a first coffee extraction solenoid valve 5, a first brewer pressure relief solenoid valve 20, a waste water tray 49, a first brewer 47, a first brewer outlet solenoid valve 22, a first beverage outlet 50, a third flow meter 39, a second coffee extraction solenoid valve 6, a second brewer pressure relief solenoid valve 21, a second brewer 48, a second brewer outlet solenoid valve 23, a second beverage outlet 51, a first milk circuit cleaning hot water solenoid valve 30, a second milk circuit cleaning hot water solenoid valve 31, a hot water pressure relief solenoid valve 10, a second water supply valve 3, a second heater 35, a steam solenoid valve 14, a first hot water solenoid valve Valve 8, the second hot water solenoid valve 9, the first steam rod solenoid valve 7, the first steam rod air pump 32, the first steam rod 40, the second steam rod solenoid valve 11, the second steam rod air pump 33, the second steam rod 41, the first milk froth heating solenoid valve 12, the first milk circuit cleaning solenoid valve 16, the first air valve 17, the first two-way milk valve 18, the milk tank 42, the first milk pump 43, the first whisk 45, the first three-way milk valve 19, the waste milk pipe 52, the second milk froth heating solenoid valve 24, the second milk circuit cleaning solenoid valve 25, the second air valve 26, the second two-way milk valve 27, the second milk pump 44, the second whisk 46, the second three-way milk valve 28, the proportional valve 13, the first milk circuit cold water cleaning solenoid valve 15, the second milk circuit cold water cleaning solenoid valve 29 and the boiler emptying solenoid valve 4.

[0020] The water inlet solenoid valve 1, the water pump 36 and the first flow meter 37 are connected in series to form a main water inlet path and are connected to the water supply system.

[0021] Six branches are arranged in parallel at the rear end of the water pump 36, one of which is connected in series with the first water supply valve 2 and the first heater 34, the second is connected in series with the second water supply valve 3 and the second heater 35, the third is connected with the proportional valve 13, the fourth is connected with the first milk circuit cold water cleaning solenoid valve 15, the fifth is connected with the second milk circuit cold water cleaning solenoid valve 29, and the sixth is connected with the boiler emptying solenoid valve 4 and the waste water tray 49.

[0022] Six branches are arranged in parallel at the rear end of the first heater 34, one of which is connected to the second flow meter 38, the second is connected to the third flow meter 39, the third is connected to the first check valve 53 and the waste water tray 49, the fourth is connected to the first milk circuit cleaning hot water solenoid valve 30, the fifth is connected to the second milk circuit cleaning hot water solenoid valve 31, and the sixth is connected to the hot water pressure relief solenoid valve 10.

[0023] The rear end of the second flow meter 38 is provided with a first coffee extraction solenoid valve 5, a first brewer 47, a first brewer outlet solenoid valve 22 and a first beverage outlet 50 in series, the rear end of the first coffee extraction solenoid valve 5 is also provided with a first brewer pressure relief solenoid valve 20 connected to a waste water tray 49 in parallel, the first brewer outlet solenoid valve 22 is also connected to the waste water tray 49, the rear end of the third flow meter 39 is provided with a second coffee extraction solenoid valve 6, a second brewer 48, a second brewer outlet solenoid valve 23 and The second beverage outlet 51, the rear end of the second coffee extraction solenoid valve 6 is also connected in parallel with a second brewer pressure relief solenoid valve 21 connected to the waste water tray 49, the second brewer outlet solenoid valve 23 is also connected to the waste water tray 49, the rear end of the first milk circuit cleaning hot water solenoid valve 30 is connected to the rear end of the second milk circuit cold water cleaning solenoid valve 29, the rear end of the second milk circuit cleaning hot water solenoid valve 31 is connected to the rear end of the first milk circuit cold water cleaning solenoid valve 15, and the rear end of the hot water pressure relief solenoid valve 10 is connected to the waste water tray 49.

[0024] Six branches are arranged in parallel at the rear end of the second heater 35, one of which is connected to the second check valve 54 and the waste water tray 49, the second is connected to the steam solenoid valve 14, the third is connected to the first steam rod solenoid valve 7, the fourth is connected to the second steam rod solenoid valve 11, the fifth is connected to the first milk froth heating solenoid valve 12, and the sixth is connected to the second milk froth heating solenoid valve 24.

[0025] The rear end of the steam solenoid valve 14 is provided with two branches in parallel, one of which is connected in series with the first hot water solenoid valve 8 and the first beverage outlet 50 , and the other is connected in series with the second hot water solenoid valve 9 and the second beverage outlet 51 .

[0026] A first steam rod air pump 32 and a first steam rod 40 are connected in parallel at the rear end of the first steam rod solenoid valve 7 , and a second steam rod air pump 33 and a second steam rod 41 are connected in parallel at the rear end of the second steam rod solenoid valve 11 .

[0027] The rear end of the first milk froth heating solenoid valve 12 is provided with a third check valve 55, a first milk circuit cleaning solenoid valve 16, a fourth check valve 56, a first milk pump 43, a first whisk 45, a first three-way milk valve 19 and a first beverage outlet 50 in series. The front end of the first milk pump 43 is also provided with two branches in parallel, one of which is connected with the fifth check valve 57 and the first air valve 17, and the other is connected with the first two-way milk valve 18 and the milk box 42. The front end of the first milk circuit cleaning solenoid valve 16 is also provided with a sixth check valve 58 in parallel and connected with the first whisk 45. The first three-way milk valve 19 is also connected with the waste milk pipe 52. The rear end of the first milk circuit cold water cleaning solenoid valve 15 is connected with the front end of the first milk circuit cleaning solenoid valve 16.

[0028] The rear end of the second milk froth heating solenoid valve 24 is provided with a seventh check valve 59, a second milk circuit cleaning solenoid valve 25, an eighth check valve 60, a second milk pump 44, a second whisk 46, a second three-way milk valve 28 and a second beverage outlet 51 in series. The front end of the second milk pump 44 is also provided with two branches in parallel, one of which is connected with the ninth check valve 61 and the second air valve 26, and the other is connected with the second two-way milk valve 27 and the milk box 42. The front end of the second milk circuit cleaning solenoid valve 25 is also provided with a tenth check valve 62 in parallel and connected with the second whisk 46. The second three-way milk valve 28 is also connected with the waste milk pipe 52. The rear end of the second milk circuit cold water cleaning solenoid valve 29 is connected with the front end of the second milk circuit cleaning solenoid valve 25.

[0029] The rear end of the proportional valve 13 is connected to the rear end of the steam solenoid valve 14 .

[0030] 1. The process of making Italian coffee is:

[0031] When making espresso coffee on the left side, the water inlet solenoid valve 1, the first water replenishment valve 2, the water pump 36, the first coffee extraction solenoid valve 5, and the first brewer outlet solenoid valve 22 are energized, and the water flows through the main flow meter 37, the first heater 34, the second flow meter 38, the first brewer 47, and the first beverage outlet 50 to complete the coffee extraction action. After the coffee is made, the pressure of the first brewer 47 is released to the waste water tray by opening the first brewer pressure relief solenoid valve 20.

[0032] When making Italian coffee on the right path, the water inlet solenoid valve 1, the first water replenishment valve 2, the water pump 36, the second coffee extraction solenoid valve 6, and the second brewer outlet solenoid valve 23 are energized, and the water flows through the first flow meter 37, the first heater 34, the third flow meter 39, the second brewer 48, and the second beverage outlet 51 to complete the coffee extraction action. After the coffee is made, the pressure of the second brewer 48 is released to the waste water tray by opening the second brewer pressure relief solenoid valve 21.

[0033] Italian coffee can be made on the left and right sides at the same time.

[0034] 2. The process of making classic American coffee is:

[0035] When making left-hand American coffee, the water inlet solenoid valve 1, the first water supply valve 2, the water pump 36, the first coffee extraction solenoid valve 5, and the first brewer outlet solenoid valve 22 are energized, and the water flows through the first flow meter 37, the first heater 34, the second flow meter 38, the first brewer 47, and the first beverage outlet 50 to complete the coffee extraction action. The pressure of the first brewer 47 is released to the waste water tray by opening the first brewer pressure relief solenoid valve 20, and the coffee making is completed. The water inlet solenoid valve 1, the water pump 36, the proportional valve 13, the steam solenoid valve 14, and the first hot water solenoid valve 8 are energized, and the hot water is made by mixing water. The left-hand American classic coffee is made.

[0036] When making right-side American coffee, the water inlet solenoid valve 1, the first water supply valve 2, the water pump 36, the second coffee extraction solenoid valve 6, and the second brewer outlet solenoid valve 23 are energized, and the water flows through the first flow meter 37, the first heater 34, the third flow meter 39, the second brewer 48, and the second beverage outlet 51 to complete the coffee extraction action. The pressure of the second brewer 48 is released to the waste water tray by opening the second brewer pressure relief solenoid valve 21, and the right coffee is made. The water inlet solenoid valve 1, the water pump 36, the proportional valve 13, the steam solenoid valve 14, and the second hot water solenoid valve 9 are energized, and the hot water is made by mixing the water. The right-side American classic coffee is made.

[0037] The left and right paths cannot be American-made at the same time.

[0038] 3. The process of making milk coffee is:

[0039] When making milk froth on the left path, the first milk froth heating solenoid valve 12, the first milk pump 43, the first air valve 17, the first two-way milk valve 18, and the first three-way milk valve 19 are energized, and the steam from the second heater 35 passes through the first milk froth heating solenoid valve 12 and the first milk pump 43 to pump milk from the milk tank 42 to form milk froth in the first frother 45, and the milk froth flows out from the first beverage outlet 50 through the first three-way milk valve 19.

[0040] When making milk froth on the right path, the second milk froth heating solenoid valve 24, the second milk pump 44, the second air valve 26, the second two-way milk valve 27 and the second three-way milk valve 28 are energized, and the steam from the second heater 35 passes through the second milk froth heating solenoid valve 24 and the second milk pump 44 to pump milk from the milk tank 42 to form milk froth in the second frother 46, and the milk froth flows out from the second beverage outlet 51 through the second three-way milk valve 28.

[0041] The left and right channels can make milk froth at the same time.

[0042] 4. The process of making steam is:

[0043] When the left steam rod is in production, the first steam rod solenoid valve 7 is energized, and steam comes out from the first steam rod 40. At the same time, the first steam rod air pump 32 can be controlled to be energized and intake air according to demand to achieve milk whipping.

[0044] When the right steam rod is in production, the second steam rod solenoid valve 11 is energized, and steam comes out from the second steam rod 41. At the same time, the second steam rod air pump 33 can be controlled to be energized and intake air according to demand to achieve milk whipping.

[0045] 5. The process of automatic cleaning of milk pipeline is as follows:

[0046] When the left milk pipeline is cleaned, water flows through the water inlet solenoid valve 1, the first flow meter 37, the first milk pipeline cold water cleaning solenoid valve 15, the first milk pipeline cleaning solenoid valve 16, the first milk pump 43, the first whisk 45, and is turned on and off by the first three-way milk valve 19 to complete the cold water cleaning of the waste milk pipeline and the beverage outlet pipeline; water flows through the water inlet solenoid valve 1, the first flow meter 37, the first water replenishment valve 2, the first heater 34, the left milk pipeline hot water cleaning solenoid valve 30, the first milk pipeline cleaning solenoid valve 16, the first milk pump 43, the first whisk 45, and is turned on and off by the first three-way milk valve 19 to complete the hot water cleaning of the waste milk pipeline and the beverage outlet pipeline; 12 is powered on, steam passes through the first milk pipeline cleaning solenoid valve 16, the first milk pump 43, the first whisk 45, and is turned on and off by the first three-way milk valve 19 to complete the steam high temperature sterilization of the waste milk pipeline and the beverage outlet pipeline;

[0047] When the right milk pipeline is cleaned, water flows through the water inlet solenoid valve 1, the first flow meter 37, the second milk pipeline cold water cleaning solenoid valve 29, the second milk pipeline cleaning solenoid valve 25, the second milk pump 44, the second whisk 46, and is turned on and off by the second three-way milk valve 28 to complete the cold water cleaning of the waste milk pipeline and the beverage outlet pipeline; water flows through the water inlet solenoid valve 1, the first flow meter 37, the first water replenishment valve 2, the first heater 34, the second milk pipeline cleaning hot water solenoid valve 31, the second milk pipeline cleaning solenoid valve 25, the second milk pump 44, the second whisk 46, and is turned on and off by the second three-way milk valve 28 to complete the hot water cleaning of the waste milk pipeline and the beverage outlet pipeline; the second milk foam heating solenoid valve 24 is energized, and steam passes through the second milk pipeline cleaning solenoid valve 25, the second milk pump 44, the second whisk 46, and is turned on and off by the second three-way milk valve 28 to complete the steam high-temperature sterilization of the waste milk pipeline and the beverage outlet pipeline;

[0048] The left and right milk pipes can be cleaned at the same time.

[0049] It has the following advantages:

[0050] 1. Multiple solenoid valves work together to make a variety of drink combinations and realize various drink functions;

[0051] 2. The left and right water channels can be used for production separately or simultaneously. They can produce steam, milk, milk foam and milk cap while making coffee, achieving efficient and stable production.

[0052] 3. There are two steam rods on the left and right water channels, which can efficiently froth milk at the same time;

[0053] 4. The combination of solenoid valve, water pump and milk tank can realize automatic cleaning of milk pipeline;

[0054] 5. The safety valve can protect the waterway when the pressure is too high;

[0055] 6. The water pump can adjust different pressures to meet the extraction of coffee of different concentrations;

[0056] 7. By working together through bypass, you can make a cup of classic coffee more quickly;

[0057] 8. It has the effect of multiple channels working at the same time, which can increase the working efficiency of the coffee machine. The heater can ensure the machine's continuous working capacity and temperature, enhance the strength of the steam, and the coordinated switching of the solenoid valves enables more beverage production. The integrated milk tank realizes automatic cleaning and high-temperature sterilization of the milk pipeline.

[0058] To sum up, the utility model points out a water system with cleaning for coffee beverage equipment, which, on the one hand, can realize the simultaneous production of four cups of espresso, while satisfying the milk whipping work of the left and right steam rods and the simultaneous production of the left and right milk foam, thereby ensuring the efficiency, stability and richness of the beverage output; on the other hand, on the basis of improving the efficiency of beverage production, it also has the function of automatic cleaning, which can clean the milk circuit efficiently and conveniently, ensuring cleanliness and hygiene, and the automatic cleaning does not require manual intervention, thereby greatly saving labor costs.

[0059] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A water system for cleaning coffee beverage equipment, characterized in that: It includes a water inlet solenoid valve, a water pump, a first flow meter, a first water supply valve, a first heater, a second flow meter, a waste water tray, a first beverage outlet, a third flow meter, a second beverage outlet, a first milk circuit cleaning hot water solenoid valve, a second milk circuit cleaning hot water solenoid valve, a hot water pressure relief solenoid valve, a second water supply valve, a second heater, a steam solenoid valve, a first hot water solenoid valve, a second hot water solenoid valve, a first steam rod solenoid valve, a second steam rod solenoid valve, a first milk froth heating solenoid valve, a waste milk pipe, a second milk froth heating solenoid valve, a proportional valve, a first milk circuit cold water cleaning solenoid valve, a second milk circuit cold water cleaning solenoid valve, and a boiler emptying solenoid valve; Among them, the water inlet solenoid valve, the water pump and the first flow meter are connected in series to form a water inlet main line and are connected to the water supply system. The rear end of the water pump is provided with six branches in parallel, one of which is connected in series with the first water replenishment valve and the first heater, the second is connected in series with the second water replenishment valve and the second heater, the third is connected to the proportional valve, the fourth is connected to the first milk circuit cold water cleaning solenoid valve, the fifth is connected to the second milk circuit cold water cleaning solenoid valve, and the sixth is connected to the boiler emptying solenoid valve and the waste water tray. The rear end of the first heater is provided with six branches in parallel, one of which is connected to the second flow meter, the second is connected to the third flow meter, the third is connected to the first check valve and the waste water tray, the fourth is connected to the first milk circuit cleaning hot water solenoid valve, the fifth is connected to the second milk circuit cleaning hot water solenoid valve, and the sixth is connected to the hot water pressure relief solenoid valve. The rear end of the second flow meter is provided with a first coffee brewing branch, and the rear end of the third flow meter is provided with a second coffee brewing branch. The rear end of the first milk circuit cleaning hot water solenoid valve is connected to the rear end of the second milk circuit cold water cleaning solenoid valve. The rear end of the hot water solenoid valve for washing the milk circuit is connected to the rear end of the first cold water solenoid valve for washing the milk circuit, the rear end of the hot water pressure relief solenoid valve is connected to the waste water tray, the rear end of the second heater is provided with six branches in parallel, one of which is connected to the second check valve and the waste water tray, the second is connected to the steam solenoid valve, the third is connected to the first steam rod solenoid valve, the fourth is connected to the second steam rod solenoid valve, the fifth is connected to the first milk froth heating solenoid valve, and the sixth is connected to the second milk froth heating solenoid valve, the rear end of the steam solenoid valve is provided with two branches in parallel, one of which is connected in series with the first hot water solenoid valve and the first beverage outlet, and the second is connected in series with the second hot water solenoid valve and the second beverage outlet, the rear end of the first steam rod solenoid valve is provided with a first steam rod assembly, the rear end of the second steam rod solenoid valve is provided with a second steam rod assembly, the rear end of the first milk froth heating solenoid valve is provided with a first milk froth branch, the rear end of the second milk froth heating solenoid valve is provided with a second milk froth branch, and the rear end of the proportional valve is connected to the rear end of the steam solenoid valve.

2. The water system for cleaning the coffee beverage equipment according to claim 1, characterized in that: The first coffee brewing branch includes a first coffee extraction solenoid valve, a first brewer, a first brewer outlet solenoid valve and a first beverage outlet connected in series, a first brewer pressure relief solenoid valve is also arranged in parallel at the rear end of the first coffee extraction solenoid valve and connected to the waste water tray, and the first brewer outlet solenoid valve is also connected to the waste water tray.

3. The water system for cleaning the coffee beverage equipment according to claim 1, characterized in that: The second coffee brewing branch includes a second coffee extraction solenoid valve, a second brewer, a second brewer outlet solenoid valve and a second beverage outlet connected in series. A second brewer pressure relief solenoid valve connected to a waste water tray is also connected in parallel to the rear end of the second coffee extraction solenoid valve. The second brewer outlet solenoid valve is also connected to the waste water tray.

4. The water system for cleaning the coffee beverage equipment according to claim 1, characterized in that: The first steam rod assembly includes a first steam rod air pump and a first steam rod arranged in parallel.

5. The water system for cleaning the coffee beverage equipment according to claim 1, characterized in that: The second steam rod assembly includes a second steam rod air pump and a second steam rod arranged in parallel.

6. The water system for cleaning the coffee beverage equipment according to claim 1, characterized in that: The first milk froth branch includes a third check valve, a first milk circuit cleaning solenoid valve, a fourth check valve, a first milk pump, a first whisk, a first three-way milk valve and a first beverage outlet arranged in series. Two branches are also arranged in parallel at the front end of the first milk pump, one of which is connected with the fifth check valve and the first air valve, and the other is connected with the first two-way milk valve and the milk box. A sixth check valve is also arranged in parallel at the front end of the first milk circuit cleaning solenoid valve and is connected with the first whisk. The first three-way milk valve is also connected to the waste milk pipe. The rear end of the first milk circuit cold water cleaning solenoid valve is connected to the front end of the first milk circuit cleaning solenoid valve.

7. The water system for cleaning the coffee beverage equipment according to claim 1, characterized in that: The second milk froth branch includes a seventh check valve, a second milk circuit cleaning solenoid valve, an eighth check valve, a second milk pump, a second whisk, a second three-way milk valve and a second beverage outlet arranged in series. Two branches are also arranged in parallel at the front end of the second milk pump, one of which is connected with the ninth check valve and the second air valve, and the other is connected with the second two-way milk valve and the milk box. The front end of the second milk circuit cleaning solenoid valve is also provided with a tenth check valve in parallel and connected with the second whisk. The second three-way milk valve is also connected to the waste milk pipe. The rear end of the second milk circuit cold water cleaning solenoid valve is connected to the front end of the second milk circuit cleaning solenoid valve.

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