WO2012022114A1

WO2012022114A1 - Beverage preparation apparatus

Info

Publication number: WO2012022114A1
Application number: PCT/CN2011/001277
Authority: WO
Inventors: 刘宗熹
Original assignee: Liu Tsung-Hsi
Priority date: 2010-08-17
Filing date: 2011-08-03
Publication date: 2012-02-23

Abstract

A beverage preparation apparatus mixes superheated water in a hot water pipe (31) with set flow rate of cold water in a cold water pipe (35) to form a mixed water flow with proper temperature and delivered to a fluid delivery apparatus (20). When a brew solenoid valve (30) is controlled to turn on, the fluid delivery apparatus (20) delivers the mixed water flow with proper temperature to a preparation container (21) containing preplaced beverage ingredients to make a beverage from the ingredients; when the brew solenoid valve (30) is controlled to turn off, the fluid delivery apparatus (20) delivers the mixed proper temperature water flow to a hot water filling pipe (61), adding the mixed proper temperature water flow directly into the beverage when the hot water solenoid valve (60) is controlled to turn on. When the brew solenoid valve (30) and the hot water solenoid valve (60) are both turned off, hot water in a heat exchanger (11) evaporates and flows back to the heat exchanger (11) after preheated by the fluid delivery apparatus (30) through a preheating circulation line (33), thus forming a preheating cycle.

Description

Beverage preparation device

Technical field

The present invention relates to a beverage preparation device, and more particularly to a beverage preparation machine for preparing beverages of various temperatures and concentrations.

Background technique

The beverage preparation device is used for brewing coffee, tea or other beverages. The conventional beverage preparation device shown in Fig. 17 mainly includes a water supply pump 80, a main boiler 81, a heat exchanger 82, and a liquid dispenser 83. The water supply pump 80 is used to supply an external water source to the main boiler 81, and a water level detector 84 controls the water supply pump 80 and the boiler water inlet solenoid valve 95 to open and close, so that the water level in the main boiler 81 is maintained at one. Within a set range; a steam pressure detector 85 is used to control the opening and closing of a heater 86, thereby heating the water stored in the main boiler 81 to maintain a set steam pressure range (ie, Set the temperature range).

When the beverage preparation process is performed, the water supply pump 80 and a brewing solenoid valve 87 are operated to be activated, and the external water source is sequentially sent through a cold water supply pipe 88 through a pressure relief check valve 89 and a flow meter 90. Into the heat exchanger 82 passing through the main boiler 81, the external water source in the heat exchanger 82 is heated into a hot water by using hot water and steam in the main boiler 81, and the hot water flow is supplied via a hot water supply. The tube 91 flows into the liquid dispenser 83, and flows into the preparation container 92 preset with the beverage ingredient to be brewed by the brewing solenoid valve 87, and the beverage produced after the brewing flows out to When the flow meter 90 is metered to a set flow rate, the brewing solenoid valve 87 and the water supply pump 80 are turned off in real time to complete the beverage brewing process for setting the flow rate.

When the conventional beverage preparation device is in a standby phase in which the beverage brewing process is not performed, the steam generated by the hot water in the heat exchanger 82 flows into the liquid dispenser 83 via the hot water supply pipe 91, due to The brewing solenoid valve 87 is in a closed state during the standby phase, so that the steam water flow is heat exchanged with the liquid dispenser 83. After the liquid dispenser 83 is preheated to an operating temperature, the steam is changed by heat exchange with the liquid dispenser 83. Condensation The water, condensed water is returned to the heat exchanger 82 by a return line 93 to form a preheat cycle.

The above-mentioned conventional beverage preparation device can only supply hot water of a single temperature to the liquid dispenser brewing beverage, and the temperature and concentration of the beverage prepared by the same can be a preset fixed value, which cannot meet the individual needs of different customers, and the modulation is different. The temperature and concentration of beverages do not meet the actual needs of the diversified beverage market.

At present, the current beverage industry is usually in the finished brewing beverage, artificially adding hot water, cold water and/or ice cubes to change the temperature and concentration of the beverage. This type of manual addition is not only time-consuming, but also does not maintain the best quality and taste of the beverage, which may cause problems such as long waiting times for customers and unsatisfactory quality of the beverage.

In addition, the optimal brewing temperatures for different types of beverages (eg coffee, green tea, black tea, etc.) are not the same. Although the conventional beverage preparation device can be provided with two or more liquid dispensers and preparation containers, the hot water supply system can supply only a single temperature of hot water to each liquid dispenser and the preparation container for the beverage brewing process, and therefore only Can be pre-set to brew the same type of beverage, which can be called: "single-beverage preparation device"; for those with different types of beverage market demand, it is necessary to purchase more than one set of different settings. The single-beverage beverage preparation device for brewing different types of beverages not only increases the equipment purchase cost of the manufacturer, but also has the disadvantages of inconvenient operation and low equipment grafting rate.

Summary of the invention

The object of the present invention is to provide a beverage preparation device which, after completing a beverage brewing program, selects a flow of water of a set volume according to a user setting, and automatically adds it to the beverage, thereby changing the concentration of the beverage; It not only is easy to operate, but also maintains the best quality and taste of the beverage.

A second object of the present invention is to provide a beverage preparation device whose water injection flow includes hot water and/or cold water, which can change the temperature and/or concentration of the beverage.

Another object of the present invention is to provide a beverage preparation device, which is a liquid dispenser that mixes hot water above a brewing temperature with a set flow of cold water into a suitable brewing temperature. Delivered to the brewing beverage in the preparation container. The method of brewing in a mixed water stream can not only improve the working efficiency of the boiler, but also adjust the cold water when the beverage preparation device is provided with two or more liquid dispensers and a preparation container. Flow, delivering mixed water streams of different temperatures to different liquid dispensers for brewing different types of beverages. Therefore, the beverage preparation device provided by the present invention can be configured with two or more liquid dispensers and preparation containers for brewing two or more different types of beverages, thereby reducing the cost of equipment purchase for the beverage manufacturer. It has the advantages of convenient operation and high equipment marry rate.

Another object of the present invention is to provide a beverage preparation device which further provides a preheating circulation flow path which ensures the warm-up effect of the liquid dispenser.

A beverage preparation device capable of achieving the above object of the invention includes: a boiler for heating the internal water storage to a set temperature range; a hot water pipe connecting the external water source, passing through a heat exchanger disposed in the boiler, The water flowing through the hot water pipe is heated to a superheating temperature value; a cold water pipe connected to the external water source, which is adjusted to the flow rate through a cold water throttle valve, and then connected to the hot water pipe to mix the cold water and the hot water into a suitable temperature a mixed water flow; a check valve disposed on the cold water pipe, the water flow in the hot water pipe cannot be reversely returned to the cold water pipe; a liquid dispenser connected to the hot water pipe and receiving the water flow thereof; The dispensers are combined with each other and internally provided with a preparation container for the beverage component; a hot water injection pipe connected to the hot water pipe through the liquid dispenser; and a hot water injection for controlling the opening and closing of the hot water injection pipe a solenoid valve; and a brewing solenoid valve disposed on the liquid dispenser, the liquid dispenser dispensing the warm mixed water stream into the preparation container when the control is turned on, The beverage component is prepared as a beverage; when the brewing solenoid valve is closed and the hot water injection solenoid valve is opened, the liquid dispenser delivers the warm mixed water flow into the hot water injection pipe and injects into the beverage .

In a preferred embodiment, the beverage preparation device further includes a preheating circulation line, one end of which is connected to the hot water pipe, and the other end is directly connected to the heat exchanger, and is connected to the heat exchanger; When the brewing solenoid valve and the hot water injection electromagnetic enthalpy are both turned off, the hot water of the heat exchanger is volatilized, and after the preheating circulation pipeline is preheated, the liquid dispenser is returned to the heat exchanger. By.

In a preferred embodiment, the beverage preparation device further includes a cold water injection pipe connected to the external water source and a cold water injection electromagnetic valve for controlling the cold water injection pipe to open and close; when the cold water injection electromagnetic valve is opened, The outside cold water is injected into the beverage through the cold water injection pipe.

In a preferred embodiment, the cold water pipe is connected to the hot water pipe before the hot water pipe enters the liquid dispenser Manager.

In a preferred embodiment, the cold water pipe is connected to the hot water pipe through the liquid dispenser. In a preferred embodiment, the beverage preparation device further includes a control panel having at least three manual control keys and at least four automatic control keys; each of the manual control keys for manually controlling the brewing electromagnetic Valve, cold water injection solenoid valve and hot water injection solenoid valve; each automatic control button can be preset, and automatically control the brewing solenoid valve, cold water injection solenoid valve, hot water injection solenoid valve and their combination .

In a preferred embodiment, the beverage preparation device is provided with at least two sets of cold water pipes, a cold water throttle valve, a hot water pipe and a liquid dispenser; and the at least two groups are adjusted by adjusting the at least two sets of cold water throttle valves The cold water pipes have different cold water flow rates, and are mixed with the hot water in the at least two sets of hot water pipes to form a suitable temperature mixed water flow of different temperatures, and respectively delivered to the at least two sets of liquid dispensers.

In a preferred embodiment, the hot water injection electromagnetic louver is disposed on the hot water injection pipe.

In a preferred embodiment, the hot water injection solenoid valve is disposed on the liquid dispenser; when the brewing solenoid valve is opened and the hot water injection solenoid valve is closed, the warm mixed water flow enters the liquid In one of the water supply channels of the dispenser, the opened brewing solenoid valve enters a water outlet channel and flows into the preparation container for a beverage brewing procedure; when the brewing solenoid valve is closed and the hot water injection solenoid valve is opened The warm mixed water flow enters a water supply passage through the water supply passage, and enters a water injection passage through the opened hot water injection electromagnetic valve, and flows into the hot water injection pipe.

DRAWINGS

Figure 1 is a perspective structural view of a first embodiment of a beverage preparation device of the present invention;

Figure 2 is a plan view of the first embodiment of the beverage preparation device shown in Figure 1;

Figure 3 is a perspective structural view of a second embodiment of the beverage preparation device of the present invention;

Figure 4 is a plan view showing a second embodiment of the beverage preparation device shown in Figure 3;

Figure 5 is a schematic view of the control panel in the second embodiment of the beverage preparation device shown in Figure 3;

Figure 6 is a perspective view of a cold water (hot water) water injection throttle joint in the beverage preparation device;

Figure 7 is a flow direction of the second embodiment of the beverage preparation device shown in Figure 3 when the brewing beverage program is performed Schematic diagram

8 is a schematic diagram of the flow direction of the second embodiment of the beverage preparation device shown in FIG. 3 when the hot water filling procedure is performed;

Figure 9 is a schematic view showing the flow direction of the second embodiment of the beverage preparation device shown in Figure 3 when the cold water filling procedure is performed;

10 is a schematic diagram of the flow direction of the second embodiment of the beverage preparation device shown in FIG. 3 during the preheating cycle;

11 is a top view of a third embodiment of the beverage preparation device of the present invention;

12 is a perspective structural view of a fourth embodiment of the beverage preparation device of the present invention;

13 is a plan view of a fourth embodiment of the beverage preparation device shown in FIG. 11;

14 is a perspective structural view of a fifth embodiment of the beverage preparation device of the present invention;

15 is a partial cross-sectional enlarged view of the liquid dispenser in the fifth embodiment of the beverage preparation device shown in FIG.

16 is similar to Figure 15 except that the cross-section is different;

17 is a three-dimensional structure diagram of a conventional beverage preparation device.

[Main component symbol description]

10 boiler 11 heat exchanger

12 water pump 13 water level detector

14 Inlet Solenoid Valve 15 Steam Pressure Detector

16 heater 17 inlet pipe

18 Pressure relief check valve 19 Flow meter

20 Liquid dispenser 21 Preparation container

22 beverage cup 23 guide seat 24 water supply channel 25 water outlet

26 Water supply channel 27 Water injection channel

30 brewing solenoid valve 31 hot water pipe

33 Preheating circuit line 35 Cold water pipe

36 cold water throttle valve 37 check valve

38 throttle connector 50 cold water injection solenoid valve

51 cold water injection pipe 52 cold water injection throttle joint

60 hot water injection solenoid valve 61 hot water injection pipe

62 hot water injection throttle joints

Referring to FIG. 1 and FIG. 2 together, the first embodiment of the beverage preparation device provided by the present invention mainly mixes the hot water flow in the hot water pipe 31 with the set flow cold water in a cold water pipe 35. Mixing the water stream at a suitable temperature, and using a liquid dispenser 20 provided with a brewing solenoid valve 30, selecting to distribute the warm mixed water stream into a preparation container 21 preset with a beverage component, and preparing the beverage component into a beverage. And flowing the beverage into a beverage cup 22; or selecting to distribute the warm mixed water stream into a hot water injection pipe 61 and directly injecting into the beverage cup 22, thereby changing the concentration of the beverage in the cup.

The beverage preparation device comprises: a boiler 10 for heating the internal water storage to a set temperature range; a hot water pipe 31 connecting the external water source, which passes through a heat exchanger 11 disposed in the boiler 10, and passes through The water flow of the hot water pipe 31 is heated to a superheating temperature value; a cold water pipe 35 connected to the external water source, which is connected to the hot water pipe 31 through a cold water throttle valve 36, so that the cold water and the hot water are mixed into one a temperature-mixed water flow; a check valve 37 disposed on the cold water pipe 35 prevents the water flow in the hot water pipe 31 from flowing back into the cold water pipe 35; and is connected to the hot water pipe 31 and receives the water flow thereof a liquid dispenser 20; a preparation container 21 combined with the liquid dispenser 20 and internally having a beverage component; - connected to the hot water pipe 31 through the liquid dispenser 20. a hot water injection pipe 61; a hot water injection solenoid valve 60 disposed on the hot water injection pipe 61 to control its opening and closing; and a brewing electromagnetic valve 30 disposed on the liquid dispenser 20, which is controlled When opened, the liquid dispenser 20 delivers the warm mixed water stream into the preparation container 21 to prepare the beverage component into a beverage; when the brewing solenoid valve 30 is controlled to be closed, the liquid dispenser 20 The warm mixed water stream is delivered into the hot water injection pipe 61, and when the hot water injection solenoid valve 60 is controlled to be turned on, the warm mixed water flow is injected into the beverage.

In the present embodiment, the cold water pipe 35 is connected to the hot water pipe 31 before the hot water pipe 31 enters the liquid dispenser 20.

The invention utilizes a water supply pump 12 to supply an external water source to the boiler 10, and a water level detector 13 controls the opening and closing of the water supply pump 12 and an water inlet electromagnetic raft 14, so that the water level in the boiler 10 is maintained at Within a set range; a steam pressure detector 15 is used to control the opening and closing of a heater 16, thereby heating the water stored in the boiler 10 to maintain a set steam pressure range (ie, Set the temperature range).

The water supply pump 12 is further connected to an inlet pipe 17, and when the water supply pump 12 is started, an external water source is pumped into the water inlet pipe 17. A pressure relief check valve 18 and a flow meter 19 are sequentially disposed on the water inlet pipe 17, and the ends thereof are respectively connected to the hot water pipe 31 and the cold water pipe 35, thereby supplying an external water source to the hot water pipe 31 and the cold water. Tube 35.

The heat exchanger 11 is a double-pot heat exchanger as shown in the drawing, and a single-pot or other type of heat exchanger may be used.

The brewing solenoid valve 30 is disposed on the liquid dispenser 20, which is a three-port two-position solenoid valve. The beverage preparation device further includes a preheating circulation line 33 for preheating the liquid dispenser 20, one end of which is connected to the hot water pipe 31, and directly passes through the liquid dispenser 20 without being controlled by any solenoid valve. Thereafter, the other end is connected to the heat exchanger 11. A junction 38 is provided at the junction of the preheat cycle 16 and the liquid dispenser 20, and the throttle 38 can also be replaced by a throttle valve.

Referring to FIG. 3 and FIG. 4, the second embodiment of the beverage preparation device provided by the present invention has the same main structure as that of the first embodiment shown in FIG. 1 and FIG. 2, and the same portions are not described. The second embodiment of the beverage preparation device further includes a cold water injection pipe 51 connected to an external water source, and a cold water injection pipe 51 disposed at the cold water injection pipe 51. The cold water injection solenoid valve 50 is controlled to open and close; when the cold water injection solenoid valve 50 is controlled to be opened, the external cold water is directly injected into the beverage cup 22, thereby changing the temperature and concentration of the beverage in the cup.

Referring to FIG. 5 , the beverage preparation device provided by the present invention further comprises a control panel 65 on the casing, and at least three manual control keys El, E2, E3 and at least four automatic control keys A1, A2 are disposed thereon. Bl, B2, Cl, C2, Dl, D2o Each manual control key El, E2, E3 is for the user to manually control the brewing solenoid valve 30, the cold water water injection solenoid valve 50, and the hot water injection solenoid valve 60, respectively. One's opening and closing. Each of the automatic control keys A1, A2, Bl, B2, Cl, C2, D1, D2 can be preset, and the brewing electromagnetic wide 30, the cold water water injection electromagnetic valve 50, and the hot water injection electromagnetic electromagnetic control are respectively controlled in an automatic manner. The opening and closing of the valve 60 and any combination thereof; the preset manner of each of the automatic control keys A1, A2, Bl, B2, Cl, C2, D1, D2 can be preset by the manufacturer before leaving the factory, or by the user After setting the factory, you can set or change the settings yourself. The method of setting the factory is the customary technology of circuit design, and will not go into details.

The following is an example of the operation flow of each manual control key El, E2, E3 and automatic control keys Al, A2, Bl, B2, Cl, C2, Dl, D2:

El key: The brewing solenoid valve 30 is manually controlled by the user to control the amount of water for brewing hot water.

E2 key: The cold water injection solenoid valve 50 is manually controlled by the user to control the amount of water supplied by the cold water.

E3 key: The hot water injection solenoid valve 60 is manually controlled by the user to control the amount of water to be injected.

A1 key: It is preset to automatically control the brewing solenoid valve 30 to open a preset flow rate to brew a single cup of rich beverage such as 50 cc.

A2 button: It is preset to automatically control the brewing solenoid valve 30 to open another preset flow rate to brew a double cup of rich beverage such as 100CC.

B1 key: After being preset to automatically control the brewing solenoid valve 30 to open a preset flow rate, the hot water injection solenoid valve 60 is automatically controlled to open a preset flow rate to modulate, for example, a 360 cc isothermal light beverage (eg Brewing drink 80cc + fill the same temperature hot water 280cc).

B2 key: After being preset to automatically control the brewing solenoid valve 30 to open a preset flow rate, the hot water injection solenoid valve 60 is automatically controlled to open a preset flow rate to modulate, for example, a 360 cc iced beverage (eg, a beverage) Inside the cup 22, preset 220CC ice cubes + brewing beverage 80CC + fill the same temperature hot water 60cc to melt some ice cubes).

C1 key: After being preset to automatically control the brewing solenoid valve 30 to open a preset flow rate, the cold water water injection electromagnetic width 50 is automatically controlled to open a preset flow rate to modulate a low temperature light beverage such as 360CC (for example, brewing) Drink 80cc + fill cold water 280CC).

C2 key: After being preset to automatically control the brewing solenoid valve 30 to open a preset flow rate, the cold water water injection solenoid valve 50 is automatically controlled to open a preset flow rate to modulate, for example, a low-temperature light beverage of 500 cc (for example, brewing) Beverage 120CC+ is filled with cold water 380cc).

D1 key: preset to automatically control the brewing solenoid valve 30 to open a preset flow rate, and then automatically control the hot water injection solenoid valve 60 to open a preset flow rate, and finally automatically control the cold water injection solenoid valve 50 to open a section Time, to modulate, for example, a 360 cc warm light beverage (for example, brewing beverage 80cc + filling with isothermal hot water 200CC + filling cold water 80cc).

D2 key: preset to automatically control the brewing solenoid valve 30 to open a preset flow rate, and then automatically control the hot water injection solenoid valve 60 to open a preset flow rate, and finally automatically control the cold water injection electromagnetic wide 50 to open for a period of time To modulate, for example, a 500 cc warm light beverage (for example, brewing beverage 120CC + filling hot water 260CC + filling cold water 120CC:).

Referring to Fig. 6, the cold water injection pipe 51 is further provided with a cold water injection throttle joint 52 of a proper diameter for adjusting and setting the water injection flow rate of the cold water injection pipe 51. The cold water injection throttle joint 52 is constructed in cooperation with the cold water injection solenoid valve 50 as shown in FIG. Similarly, a hot water injection throttle joint 62 (shown in Figures 1 and 2) is also disposed on the hot water injection pipe 61. The two throttle joints 52, 62 are also replaced by throttling.

The following procedures for brewing, adding hot water, adding cold water, adding warm water, and preheating cycle according to the present invention will be described with reference to Figs. 7 to 10: 1. Brewing beverage: Please refer to Figure 7. The manual water supply pump 12 and the brewing solenoid valve 30 are activated by the manual control key E1 or the automatic control keys A1, A2 (as shown in Fig. 5), and the cold water injection solenoid valve 50 And the hot water injection electromagnetic wide 60 remains closed; at this time, the external water source pumped by the water supply pump 12 flows into the hot water pipe 31 and the cold water pipe 35 through the inlet pipe 17 in the direction of the arrow shown in FIG. The water flowing into the hot water pipe 31 is heated to a superheated hot water via the heat exchanger 11, and the water flowing into the cold water pipe 35 is regulated to flow through the cold water throttle valve 36, flows into the hot water pipe 31, and is inside the hot water pipe 31. The superheated hot water is mixed into a suitable temperature mixed water flow at the optimum brewing temperature; when the warm mixed water flow flows into the liquid dispenser 20, it is delivered to the preset beverage component through the opened brewing solenoid valve 30. The preparation container 21 is brewed, and the prepared beverage finally flows into the beverage cup 22.

2. Filling hot water: Please refer to Figure 8. After completing the beverage brewing procedure, if you choose to add hot water directly to the beverage, use the manual control button E3 or select the automatic control buttons Bl, B2 during brewing. As shown in Fig. 5, the water supply pump 12 and the hot water injection solenoid valve 60 are activated, and the brewing solenoid valve 30 and the cold water injection solenoid valve 50 are closed: at this time, the external water source pumped by the water supply pump 12 In the direction of the arrow shown in Fig. 8, the water inlet pipe 17 flows into the hot water pipe 31 and the cold water pipe 35, respectively. The water flowing into the hot water pipe 31 is heated to a superheated hot water via the heat exchanger 11, and the water flowing into the cold water pipe 35 is regulated to flow through the cold water throttle valve 36, flows into the hot water pipe 31, and is inside the hot water pipe 31. The superheated hot water is mixed into a suitable temperature mixed water flow at the optimum brewing temperature; when the warm mixed water flow flows into the liquid dispenser 20, the brewing solenoid valve 30 is closed and delivered to the hot water injection pipe 61 Inside, the hot water injection solenoid valve 60 that is opened is directly injected into the beverage cup 22, thereby reducing the concentration of the beverage, but does not change the temperature of the beverage.

3. Fill the cold water: Please refer to Figure 9. After completing the beverage brewing procedure, if you choose to add cold water directly to the beverage, use the manual control button E2 or select the automatic control keys Cl, C2 during brewing. 5)), the water supply pump 12 and the cold water injection electromagnetic width 50 are activated, and the brewing solenoid valve 30 and the hot water injection solenoid valve 60 are closed; at this time, the external water source pumped by the water supply pump 12 is In the direction of the arrow shown in Fig. 9, the water inlet pipe 17 flows into the cold water injection pipe 51, and is directly injected into the beverage cup 22 through the opened cold water water injection solenoid valve 50, thereby simultaneously reducing the concentration and temperature of the beverage. In addition, in the process of filling the cold water, since the brewing solenoid valve 30 and the hot water injection solenoid valve 60 are all closed, the hot water pipe 31 and the cold water pipe 35 are substantially water-free. Flows flow.

4. Filling with warm water: According to the above procedure of adding hot water and adding cold water, hot water and cold water are directly injected into the beverage cup 22, thereby reducing the concentration and temperature of the beverage at the same time.

5. Preheating cycle: Referring to FIG. 10, when the beverage preparation device is in the standby state, the water supply pump 12, the brewing solenoid valve 30, the cold water water injection solenoid valve 50, and the hot water injection solenoid valve 60 are all closed. The steam generated by the hot water in the heat exchanger 11 flows into the preheating circulation line 33 via the hot water pipe 31 in the direction of the arrow shown in FIG. 10, and passes through the liquid dispenser 20 Heat exchange, the preheating steam flow is set by the throttle joint 38, the liquid dispenser 20 is preheated to an appropriate working temperature, and the condensed water after the heat exchange is returned to the preheating circulation line 33 to the In the heat exchanger 11, a preheating cycle is formed.

The beverage preparation device of the present invention is configured to supply the hot water of the superheated temperature and the cold water adjusted to the flow rate via the cold water throttle valve 36 to a suitable mixed water flow of the optimum brewing temperature, and then supply the liquid to the liquid dispenser 20, and is The beverage is dispensed into the preparation container 21 for brewing. This method of mixing cold water with hot water into a suitable temperature mixed water stream can not only improve the working efficiency of the boiler, but also change the temperature of the warm mixed water flow by changing the preset flow rate of the cold water. Referring to FIG. 11, when two sets of brewing units are disposed in the beverage preparation device, the flowmeters 19a, 19b are operated independently of each other; the heat exchangers l la, l ib; the hot water pipes 31a, 31b _{; the} cold water pipes 35a 35b _; cold water throttle valves 36a, 36b; check valves 37a, 37b; liquid dispensers 20a, 20b; brewing solenoid valves 30a, 30b and preparation containers 21a, 21b, etc., only need to use the two cold water throttling The valves 36a, 36b are preset with different cold water flow rates, so that the brewing warm water streams entering the two liquid dispensers 20a, 20b respectively have different brewing temperatures, so that different brewing by the same beverage preparation device is realized. The purpose of the type of beverage.

Referring to FIG. 12 and FIG. 13 , the fourth embodiment of the beverage preparation device provided by the present invention has the same main structure as the second embodiment shown in FIG. 3 and FIG. 4 , and the same portions are not described. The fourth embodiment of the beverage preparation device mainly connects the cold water pipe 35c to the hot water pipe 31c through the liquid distributor 20c, and therefore, the superheated water delivered by the hot water pipe 31c and the quantitative cold water conveyed by the cold water pipe 35c The liquid dispenser 20c is mixed into a suitable temperature stream suitable for brewing the beverage. The hot water injection pipe 61c is optionally connectable to the cold water pipe 35c interposed between the liquid distributor 20c and the cold water throttle valve 36c, whereby the brewing solenoid valve 30c is closed. When the hot water injection electromagnetic width 60c is turned on, the warm mixed water flow is directly injected into the beverage cup 22, thereby lowering the concentration of the beverage, but not changing the temperature of the beverage.

Referring to FIG. 14 to FIG. 16, the fifth embodiment of the beverage preparation device provided by the present invention has the same main structure as that of the second embodiment shown in FIG. 3 and FIG. 4, and the same portions are not described. The fifth embodiment of the beverage preparation device is mainly configured to change the hot water injection solenoid valve 60d originally disposed on the hot water injection pipe 61d in the first to fourth embodiments to be disposed on the liquid dispenser 20d; The structure of the liquid dispenser 20d is partially modified as shown in Figs. 15 and 16. The liquid dispenser 20d has a flow guiding seat 23 for receiving a mixture of the superheated hot water supplied from the hot water pipe 31d and the quantitative cold water supplied from the cold water pipe 35d. When the brewing solenoid valve 30d is opened and the hot water injection solenoid valve 60d is closed, the temperature-mixed mixed water flow in the flow guiding seat 23 enters a water supply passage 24 and enters through the opened brewing solenoid valve 30d. A water outlet passage 25 is provided and flows into the preparation container 21 for a beverage brewing process. When the brewing electromagnetic wide 30d is closed and the hot water injection solenoid valve 60d is opened, the proper temperature mixed water flow in the flow guiding seat 23 enters the water supply passage 24 and a water supply manifold 26, and is then opened. The hot water injection electromagnetic opening 60d enters a water injection passage 27 and flows into the hot water injection pipe 61d to perform the above-described hot water filling procedure. When both the brewing solenoid valve 30d and the hot water injection solenoid valve 60d are closed, the flow guiding seat 23 flows substantially without water. In the standby state, the hot water volatilization steam is passed through the preheating circulation line 33d through the liquid dispenser 20d to perform the above-described preheating cycle.

The beverage preparation device provided by the invention can automatically adjust the temperature and concentration of the brewed beverage according to at least one preset value, thereby modulating, for example, espresso (tea), light coffee (tea), hot coffee (tea), Warm coffee (tea), iced coffee (tea) and other beverages of different temperatures and different concentrations meet the actual needs of the diversified beverage market. At the same time, the purpose of brewing different types of beverages with the same beverage preparation device can be achieved. Therefore, the industry is able to reduce the cost of equipment purchase, and has the advantages of convenient operation and high equipment marry rate.

Claims

Claim

A beverage preparation device comprising:

a boiler that heats internal storage water to a set temperature range;

a hot water pipe connected to an external water source, which heats the water flowing through the hot water pipe to a superheating temperature value through a heat exchanger disposed in the boiler;

a cold water pipe connected to an external water source, which is adjusted to a flow rate through a cold water throttle valve, and then connected to the hot water pipe to mix the cold water and the hot water into a suitable temperature mixed water flow;

a check valve disposed on the cold water pipe, so that the water flow in the hot water pipe cannot be reversely returned to the cold water pipe; a liquid dispenser connected to the hot water pipe and receiving the water flow thereof;

a preparation container which is combined with the liquid dispenser and internally provided with a beverage component;

A brewing solenoid valve disposed on the liquid dispenser is controlled to open, and the liquid dispenser dispenses the warm mixed water stream into the preparation container to prepare the beverage component into a beverage.

2. The beverage preparation device according to claim 1, further comprising a hot water injection pipe connected to the hot water pipe through the liquid dispenser and a hot water for controlling the hot water injection pipe to open and close a water injection solenoid valve; when the brewing solenoid valve is closed and the hot water injection solenoid valve is opened, the liquid dispenser dispenses the warm mixed water flow into the hot water injection pipe and injects the beverage into the beverage.

3. The beverage preparation device according to claim 2, further comprising a preheating circulation line, one end of which is connected to the hot water pipe, and the other end is directly connected to the heat exchanger and connected to the heat exchanger; When the brewing solenoid valve and the hot water injection solenoid valve are both closed, the hot water of the heat exchanger is volatilized, and after the preheating circulation pipeline is preheated to the liquid dispenser, the hot water is returned to the heat exchange. The device.

4. The beverage preparation device according to claim 2, further comprising a cold water injection pipe connected to the external water source and a cold water injection electromagnetic valve for controlling the cold water injection pipe to open and close; when the cold water injection solenoid valve is opened, The outside cold water is injected into the beverage through the cold water injection pipe. The beverage preparation device according to claim 1, wherein the cold water pipe is connected to the hot water pipe before the hot water pipe enters the liquid dispenser.

A beverage preparation device according to claim 1, wherein the cold water pipe is connected to the hot water pipe through the liquid dispenser.

The beverage preparation device according to claim 4, further comprising a control panel having at least three manual control keys and at least four automatic control keys; each of the manual control keys for manually controlling the brewing solenoid valves , cold water injection solenoid valve and hot water injection solenoid valve; each automatic control button can be preset, and automatically control the brewing solenoid valve, cold water injection electromagnetic wide, hot water injection electromagnetic wide and its combination. The beverage preparation device according to claim 1, which is provided with at least two sets of cold water pipes, a cold water throttle valve, a hot water pipe and a liquid dispenser; and the at least two groups are adjusted by adjusting the at least two sets of cold water throttle valves The cold water pipes have different cold water flow rates, and are mixed with the hot water in the at least two sets of hot water pipes to form a suitable temperature mixed water flow of different temperatures, and respectively delivered to the at least two sets of liquid dispensers.

The beverage preparation device according to claim 2, wherein the hot water injection solenoid valve is disposed on the hot water injection pipe.

The beverage preparation device according to claim 2, wherein the hot water injection solenoid valve is disposed on the liquid dispenser; when the brewing solenoid valve is opened and the hot water injection solenoid valve is closed, the warm temperature mixing The water flows into a water supply passage of the liquid dispenser, enters a water outlet passage through the opened brewing solenoid valve, and flows into the preparation container for a beverage brewing procedure; when the brewing electromagnetic is widely closed and the hot water is injected When the electromagnetic wide is opened, the warm mixed water flow enters a water supply channel through the water supply passage, and enters a water injection passage through the opened hot water injection electromagnetic valve, and flows into the hot water injection pipe.