CN109091013B - Dry burning prevention method for coffee machine system during starting - Google Patents
Dry burning prevention method for coffee machine system during starting Download PDFInfo
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- CN109091013B CN109091013B CN201811278532.6A CN201811278532A CN109091013B CN 109091013 B CN109091013 B CN 109091013B CN 201811278532 A CN201811278532 A CN 201811278532A CN 109091013 B CN109091013 B CN 109091013B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/58—Safety devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
The invention relates to a coffee machine boiler control technology, which solves the technical problems that the prior coffee machine startup dry-burning prevention control method is easy to damage components and accelerate the aging of the components, and the technical scheme is summarized as follows: after the coffee machine is electrified and started, all boilers are sequentially injected with water, after a round of water injection is completed, whether the water quantity in each boiler reaches a corresponding threshold value or not is judged, if the water quantity in each boiler reaches the corresponding threshold value, the boiler is not burnt after heating is started, the boiler is heated at the moment, and if the water quantity in each boiler does not reach the corresponding threshold value, the next round of water injection is continued until the water quantity in each boiler reaches the corresponding threshold value or the procedure is exited overtime. The beneficial effects are that: the invention avoids the problems of damage and aging of components caused by dry burning prevention of the coffee machine starting boiler through the temperature sensor in the prior art. The invention is particularly suitable for preventing dry burning when the coffee maker is electrified.
Description
Technical Field
The invention relates to a coffee machine boiler control technology, in particular to a coffee machine boiler dry-burning prevention control technology.
Background
The coffee machine can directly heat the boiler after being electrified and started, water may not exist in the boiler at the moment, the dry burning prevention of the boiler is realized by the conventional coffee machine starting and dry burning prevention control method through the temperature sensor, but when the method detects that the boiler is dry burning, the boiler always reaches a higher temperature, components are easily damaged, and the aging of the components is accelerated.
Disclosure of Invention
The invention provides a coffee machine system startup anti-dry burning method, aiming at solving the technical problems that components are easily damaged and aging of the components is accelerated in the conventional coffee machine startup anti-dry burning control method.
In order to solve the technical problems, the invention adopts the technical scheme that: the coffee machine system startup anti-dry burning method is applied to a coffee machine system, the coffee machine system at least comprises a water tank, a booster pump, n boilers and n boiler water outlet passages, an outlet of the water tank is connected with inlets of the booster pump, outlets of the booster pump are connected with inlets of all the boilers, an outlet of a boiler j is connected with a boiler water outlet passage j, wherein n is a positive integer, j is a positive integer, and j is less than or equal to n, and the coffee machine system startup anti-dry burning method comprises the following steps:
step one, after a system is started, a timer starts to time;
and step two, starting from j to 1, sequentially injecting water into n boilers, wherein the water injection flow of the boiler j comprises the following steps: opening a boiler water outlet passage j, closing other boiler water outlet passages, opening a booster pump, starting timing by a timer II at the same time, closing the booster pump and the boiler water outlet passage j after the timing of the timer II reaches a preset time j, and resetting the timing time of the timer II;
step three, respectively detecting the water amount in each boiler, if the water amount in each boiler reaches a preset corresponding threshold value, starting a boiler heating process, and otherwise, executing the step two;
and at any moment in the second step, if the timer I times out to reach the preset water injection overtime time, closing all boiler water outlet passages, closing the booster pump and then exiting the control process.
As a further optimization, the third step adopts: and (3) starting a booster pump, starting timing by the second timer, closing the booster pump after the timing of the second timer reaches the preset pressurization time, detecting the pressure in any boiler, starting a boiler heating process if the pressure reaches a preset pressure threshold corresponding to the preset pressurization time, resetting the timing time of the second timer if the pressure does not reach the preset pressure threshold corresponding to the preset pressurization time, and then executing the second step. In the conventional coffee machine system, a liquid level sensor and a pressure sensor are simultaneously installed in a boiler, and the liquid level sensor is adopted to detect the water quantity in the boiler in the prior art.
As a further optimization, the preset time j is the volume of the boiler j divided by the water outlet flow rate of the booster pump. The preset time j adopts the water injection time which can theoretically fill the boiler j, so that not only can water not be wasted, but also sufficient water can be injected into the corresponding boiler in one water injection flow, and the dry burning prevention effect is better.
As a further optimization, when j is greater than or equal to 2, the preset time j is less than the value of the volume of the boiler j divided by the water outlet flow of the booster pump. In actual water injection process, when filling water to boiler j, some water that flows out from the booster pump can flow into other boilers, therefore follow-up when filling water to other boilers, the water yield that its actual needs were injected reduces, above-mentioned through the water injection time that reduces follow-up boiler, can guarantee to fill into in corresponding boiler in a water injection flow sufficient water when again shortening whole water injection time.
And as further optimization, if the timer reaches the preset water injection overtime time, fault alarm is also carried out. And when the water injection timeout is detected, an alarm is given, so that related personnel can check the fault in time.
The beneficial effects are that: according to the invention, the boiler is injected with water after the coffee machine is powered on and started, and the boiler is heated only after the water quantity in the boiler reaches the threshold value, so that the problems of damage and aging of components caused by dry burning prevention of the boiler when the coffee machine is started through a temperature sensor in the prior art are solved. The invention is particularly suitable for preventing dry burning when the coffee maker is electrified.
Drawings
FIG. 1 is a schematic view of a coffee maker system according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the embodiment.
The technical scheme of the invention is as follows: the coffee machine system startup anti-dry burning method is applied to a coffee machine system, the coffee machine system at least comprises a water tank, a booster pump, n boilers and n boiler water outlet passages, an outlet of the water tank is connected with inlets of the booster pump, outlets of the booster pump are connected with inlets of all the boilers, an outlet of a boiler j is connected with a boiler water outlet passage j, wherein n is a positive integer, j is a positive integer, and j is less than or equal to n, and the coffee machine system startup anti-dry burning method comprises the following steps:
step one, after a system is started, a timer starts to time;
and step two, starting from j to 1, sequentially injecting water into n boilers, wherein the water injection flow of the boiler j comprises the following steps: opening a boiler water outlet passage j, closing other boiler water outlet passages, opening a booster pump, starting timing by a timer II at the same time, closing the booster pump and the boiler water outlet passage j after the timing of the timer II reaches a preset time j, and resetting the timing time of the timer II;
step three, respectively detecting the water amount in each boiler, if the water amount in each boiler reaches a preset corresponding threshold value, starting a boiler heating process, and otherwise, executing the step two;
and at any moment in the second step, if the timer I times out to reach the preset water injection overtime time, closing all boiler water outlet passages, closing the booster pump and then exiting the control process.
After the coffee machine is electrified and started, all boilers are sequentially filled with water, after a round of water filling is completed, whether the water quantity in each boiler reaches a corresponding threshold value is judged, if yes, the boiler is not burnt after heating is started, and if not, the next round of water filling is continued until the water quantity in each boiler reaches the corresponding threshold value or the procedure is exited overtime.
The above steps are further optimized, and specifically, the method may include: step three may adopt: and (3) starting a booster pump, starting timing by the second timer, closing the booster pump after the timing of the second timer reaches the preset pressurization time, detecting the pressure in any boiler, starting a boiler heating process if the pressure reaches a preset pressure threshold corresponding to the preset pressurization time, resetting the timing time of the second timer if the pressure does not reach the preset pressure threshold corresponding to the preset pressurization time, and then executing the second step. In the existing coffee machine system, a liquid level sensor and a pressure sensor are simultaneously installed in a boiler, and the liquid level sensor is adopted to detect the water quantity in the boiler in the prior art; according to the coffee machine system applied by the invention, all boilers are communicated through pipeline connection of boiler inlets, so that the pressure in all boilers is the same, after the booster pump works for the preset pressurization time, the detected pressure is different due to different total water volumes in all boilers, and therefore, whether the total water volume in all boilers meets the requirement can be judged by judging whether the current pressure reaches the pressure threshold corresponding to the preset pressurization time, so that a liquid level sensor is not required to be installed, and the cost can be saved.
The preset time j may take the value of the volume of the boiler j divided by the booster pump outlet flow. The preset time j adopts the water injection time which can theoretically fill the boiler j, so that not only can water not be wasted, but also sufficient water can be injected into the corresponding boiler in one water injection flow, and the dry burning prevention effect is better.
When j is greater than or equal to 2, the preset time j may be less than the volume of the boiler j divided by the booster pump outlet flow rate. In actual water injection process, when filling water to boiler j, some water that flows out from the booster pump can flow into other boilers, therefore follow-up when filling water to other boilers, the water yield that its actual needs were injected reduces, above-mentioned through the water injection time that reduces follow-up boiler, can guarantee to fill into in corresponding boiler in a water injection flow sufficient water when again shortening whole water injection time.
If the timer reaches the preset water injection overtime time, fault alarm can be carried out. And when the water injection timeout is detected, an alarm is given, so that related personnel can check the fault in time.
Examples
In the following, n is 2 in this example.
The coffee machine system of the embodiment is shown in figure 1 and comprises a water tank, a booster pump, a first boiler water outlet passage, a second boiler and a second boiler water outlet passage, wherein the first boiler water outlet passage adopts a first water outlet valve, the second boiler water outlet passage adopts a second water outlet valve and a brewing device, an outlet of the water tank is connected with an inlet of the booster pump, an outlet of the booster pump is connected with an inlet of the first boiler and an inlet of the second boiler, an outlet of the first boiler is connected with one end of the first water outlet valve, an outlet of the second boiler is connected with one end of the second water outlet valve, and the other end of the second water outlet valve is connected with the brewing device.
The control method for preventing dry burning during startup of the power supply adopts the following steps:
in step S1, after the system is powered on, the timer starts to count time.
And step S2, opening the first water outlet valve, closing the second water outlet valve, moving the brewing device to an initial position, opening the booster pump, starting timing by the second timer, closing the booster pump after the timing by the second timer reaches a preset time I, closing the first water outlet valve, and resetting the timing time of the second timer to zero, wherein the preset time I is the value obtained by dividing the volume of the first boiler by the water outlet flow of the booster pump.
And step S3, opening a second water outlet valve, lifting the brewing device to a water outlet position, closing the first water outlet valve, opening the booster pump, starting timing by a second timer, closing the booster pump after the timing by the second timer reaches a second preset time, closing the second water outlet valve, moving the brewing device to an initial position, and resetting the timing time of the second timer, wherein the second preset time is less than the value obtained by dividing the volume of the second boiler by the water outlet flow of the booster pump.
Step S4, starting a booster pump, starting timing by a timer II, closing the booster pump after the timing by the timer II reaches preset pressurization time, detecting the pressure in the boiler I or the boiler II, starting a heating process of the boiler I and the boiler II if the pressure reaches a preset pressure threshold corresponding to the preset pressurization time, resetting the timing time of the timer II if the pressure does not reach the preset pressure threshold corresponding to the preset pressurization time, and then executing the step II;
at any time of the step S2 and the step S3, if the timer reaches the preset water injection overtime, the first water outlet valve is closed, the second water outlet valve is closed, the brewing device is moved out to the initial position, the booster pump is closed, and then the control process is exited and a fault alarm is performed.
Claims (4)
1. The coffee machine system starting dry burning prevention method is applied to a coffee machine system, the coffee machine system at least comprises a water tank, a booster pump, n boilers and n boiler water outlet passages, an outlet of the water tank is connected with inlets of the booster pump, outlets of the booster pump are connected with inlets of all the boilers, an outlet of a boiler j is connected with a boiler water outlet passage j, wherein n is a positive integer, j is a positive integer and j is less than or equal to n, and the coffee machine system starting dry burning prevention method is characterized in that: the method comprises the following steps:
step one, after a system is started, a timer starts to time;
and step two, starting from j to 1, sequentially injecting water into n boilers, wherein the water injection flow of the boiler j comprises the following steps: opening a boiler water outlet passage j, closing other boiler water outlet passages, opening a booster pump, starting timing by a timer II at the same time, closing the booster pump and the boiler water outlet passage j after the timer II times for a preset time, and resetting the timing time of the timer II;
step three, starting a booster pump, starting timing by a timer II, closing the booster pump after the timing of the timer II reaches preset pressurization time, detecting the pressure in any boiler, starting a boiler heating process if the pressure reaches a preset pressure threshold corresponding to the preset pressurization time, resetting the timing time of the timer II if the pressure does not reach the preset pressure threshold corresponding to the preset pressurization time, and then executing the step two;
and at any moment in the second step, if the timer I times out to reach the preset water injection overtime time, closing all boiler water outlet passages, closing the booster pump and then exiting the control process.
2. The coffee machine system startup dry-heating prevention method of claim 1, characterized in that: the preset time is the volume of the boiler j divided by the water outlet flow of the booster pump.
3. The coffee machine system startup dry-heating prevention method of claim 2, characterized in that: and when j is greater than or equal to 2, the preset time is less than the value obtained by dividing the volume of the boiler j by the water outlet flow of the booster pump.
4. The coffee machine system startup dry-heating prevention method of claim 1, characterized in that: and if the timer times out to reach the preset water injection overtime time, fault alarm is also carried out.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811278532.6A CN109091013B (en) | 2018-10-30 | 2018-10-30 | Dry burning prevention method for coffee machine system during starting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811278532.6A CN109091013B (en) | 2018-10-30 | 2018-10-30 | Dry burning prevention method for coffee machine system during starting |
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| CN109091013A CN109091013A (en) | 2018-12-28 |
| CN109091013B true CN109091013B (en) | 2021-03-16 |
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| CN201811278532.6A Active CN109091013B (en) | 2018-10-30 | 2018-10-30 | Dry burning prevention method for coffee machine system during starting |
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| CN109864578A (en) * | 2019-02-21 | 2019-06-11 | 深圳市优点智联科技有限公司 | A kind of water purifier anti-dry method, apparatus and computer readable storage medium |
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| GB1470524A (en) * | 1973-08-09 | 1977-04-14 | Still Sons Ltd W | Water boilers |
| US6688329B2 (en) * | 2001-07-06 | 2004-02-10 | C. Cowles & Company | Water feeder controller for boiler |
| DE60208084T2 (en) * | 2002-07-19 | 2006-08-17 | Gruppo Cimbali S.P.A. | MACHINE FOR THE PRODUCTION OF HOT WATER, STEAM AND HOT BEVERAGES |
| EP1975308A1 (en) * | 2007-03-30 | 2008-10-01 | Koninklijke Philips Electronics N.V. | Method for determining the liquid level in a boiler |
| CN201239027Y (en) * | 2008-07-30 | 2009-05-20 | 广东亿龙电器股份有限公司 | Electronic controller for water deficiency detection of pressure coffee-making machine |
| JP5118672B2 (en) * | 2009-08-18 | 2013-01-16 | 株式会社日立製作所 | Turbine protection device |
| CN202198441U (en) * | 2011-08-02 | 2012-04-25 | 漳州灿坤实业有限公司 | Capsule coffee machine |
| JP5534251B2 (en) * | 2012-01-31 | 2014-06-25 | 三浦工業株式会社 | boiler |
| CN103932587A (en) * | 2013-01-21 | 2014-07-23 | 吉诺工业有限公司 | Overheating type beverage brewing machine with constant temperature water supplied |
| ITTO20130842A1 (en) * | 2013-10-17 | 2015-04-18 | Rancilio Group Spa | APPARATUS AND METHOD TO MANAGE THE WATER LEVEL IN A BOILER OF A COFFEE MACHINE |
| CN203873570U (en) * | 2014-05-16 | 2014-10-15 | 广州极诺电器有限公司 | Closed-loop control system of coffee maker water circuit |
| CN106136920B (en) * | 2015-03-30 | 2019-03-12 | 广东美的生活电器制造有限公司 | Liquid-supplying system and its control method, coffee machine for coffee machine |
| US10376088B2 (en) * | 2015-07-28 | 2019-08-13 | Timothy Darryl James | Beverage brewing apparatus and related method |
| CN205162813U (en) * | 2015-11-20 | 2016-04-20 | 宁波霍科电器有限公司 | Water path system of coffee machine |
| TWI613987B (en) * | 2016-08-01 | 2018-02-11 | Matsushita Electric Taiwan Co Ltd | Coffee machine and its water temperature control method |
| CN108125564B (en) * | 2017-12-29 | 2020-06-30 | 王德涛 | Coffee machine |
| CN108175279B (en) * | 2017-12-29 | 2020-11-06 | 王德涛 | Coffee brewing method |
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