A kind of coffee machine water circuit system?
Technical field
The present invention relates to a kind of coffee machine water circuit system, be specifically related to the coffee machine water circuit system that a kind of flow becomes substantially.
Background technology
Full-automatic coffee machine is in the market in the time making Italian type concentrated coffee, in tea infuser cavity, all can there is higher pressure, and quantity and the thickness of ground coffee are one of variablees affecting pressure in cavity, and the size of pressure flow per minute can affect coffee time, and the size of flow has very large decisive factor to the extraction time of coffee, the extraction time of coffee is one of variable determining quality of coffee.And the flow of existing coffee machine is difficult to ensure, easily affects the extraction time of coffee, thereby affect quality of coffee.
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Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of coffee machine water circuit system, in the time of ground coffee number change and the variation of grinding thickness, ensure that coffee flow is substantially constant, ensure that the extraction time of coffee is unified, thereby guarantee quality of coffee.
For achieving the above object, technical scheme of the present invention is as follows: a kind of coffee machine water circuit system, comprise water supply branch road, brew branch road and hot water branch road, described water supply branch road comprises water tank, flowmeter, water pump, heater, the first pressure apparatus and the second pressure apparatus, described water tank, flowmeter, water pump, heater, the first pressure apparatus and the second pressure apparatus are connected in series, the described branch road that brews is connected with described the second pressure apparatus, and described hot water branch road is connected with described the first pressure apparatus.
Preferably, described in brew branch road and comprise pouring and boiling device and the 3rd pressure apparatus, described pouring and boiling device is connected with described the 3rd pressure apparatus.
Preferably, described hot water branch road comprises one for conducting and closes the transfer valve of described water supply branch road hot water.
Preferably, also comprise pressure release branch road, described pressure release branch road comprises pressure relief device and water-storing device, and described pressure relief device is connected with described water-storing device.
Adopt the beneficial effect of the technical program to be: in the time of ground coffee number change and the variation of grinding thickness, to ensure that coffee flow is substantially constant, ensure that the extraction time of coffee is unified, thereby guarantee quality of coffee.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, to the accompanying drawing of required use in embodiment technical description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present invention.
Numeral and the represented corresponding component title of letter in figure:
1.water tank 2.flowmeter 3.water pump 4.heater 5.first pressure apparatus 6.transfer valve 7.second pressure apparatus 8. pouring and boilingdevices 9. the3rd pressure apparatus 10.pressure relief device 11. water-storing devices.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of coffee machine water circuit system of the present invention, comprise water supply branch road, brew branch road and hot water branch road, water supply branch road compriseswater tank 1,flowmeter 2,water pump 3,heater 4, thefirst pressure apparatus 5 and thesecond pressure apparatus 6,water tank 1,flowmeter 2,water pump 3,heater 4, thefirst pressure apparatus 5 and thesecond pressure apparatus 6 are connected in series, brew branch road and be connected with thesecond pressure apparatus 7, hot water branch road is connected with thefirst pressure apparatus 5.
Brew branch road and comprise pouring and boilingdevice 8 and the3rd pressure apparatus 9, pouring and boilingdevice 8 is connected with the 3rd pressure apparatus 9.Hot water branch road comprises one for conducting and closes thetransfer valve 6 of described water supply branch road hot water.Also comprise pressure release branch road, pressure release branch road comprisespressure relief device 10 and water-storing device 11, andpressure relief device 10 is connected with water-storing device 11.
When water reaches certain pressure, flow topressure apparatus 7 bypressure apparatus 5; When insufficient pressure, flow to transfervalve 6 by pressureapparatus.Transfer valve 6 cuts out in the time making coffee, conducting in the time going out hot water.The pressure set points ofpressure apparatus 9 is less than the pressure set points ofpressure apparatus 5, and the water velocity that ensures pouring and boilingdevice 8 is all the same.Pressure relief device 10 is closed in the time making coffee, and in the complete rear conducting of coffee cooking, releases pressure and waste water in pouring and boilingdevice 8 cavitys.
The flow direction of water while making coffee: water, throughwater tank 1,flowmeter 2,water pump 3,heater 4,pressure apparatus 5,pressure apparatus 7, pouring and boilingdevice 8,pressure apparatus 9, finally flows in coffee cup.There is the water of pressure to flow in water-storing device 11 throughpressure relief device 10 for the pipeline and the pouring and boilingdevice 8 that connect.Becausepressure apparatus 7 has been installed betweenpressure apparatus 5 and pouring and boilingdevice 8, how the interior no matter how ground coffee of pouring and boilingdevice 8 cavitys is changed, be all the same through the water velocity of pouring and boilingdevice 8.
The flow direction of water while going out hot water: water, throughwater tank 1,flowmeter 2,water pump 3,heater 4,pressure apparatus 5, by switchingdevice shifter 6, finally flows in hot water cup.
Adopt the beneficial effect of the technical program to be: in the time of ground coffee number change and the variation of grinding thickness, to ensure that coffee flow is substantially constant, ensure that the extraction time of coffee is unified, thereby guarantee quality of coffee.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.