CN111358281A - Water adding control method for steam box - Google Patents

Water adding control method for steam box Download PDF

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Publication number
CN111358281A
CN111358281A CN201811599517.1A CN201811599517A CN111358281A CN 111358281 A CN111358281 A CN 111358281A CN 201811599517 A CN201811599517 A CN 201811599517A CN 111358281 A CN111358281 A CN 111358281A
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heating
water
steam generator
time
heating pipe
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CN111358281B (en
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诸葛军芳
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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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
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A47J36/2483—Warming devices with electrical heating means
    • 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
    • A47J27/00—Cooking-vessels
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

The invention relates to a water adding control method of a steam box, which can automatically control to inject proper amount of water and avoid the dry burning of the water into a steam generator once the dry burning of the steam box is detected after the rated power of an internal heating pipe and an external heating pipe of the steam generator is obtained and the reference relation between the rated power and the water injection quantity of the internal heating pipe and the external heating pipe of the internal heating pipe of the steam generator is determined, thereby ensuring that the dry burning is avoided under the condition that the residual water of the steam generator is not much, further effectively detecting the water level in the steam generator without a communication device which is easy to block and frequent dry burning, and ensuring the normal work of the steam box.

Description

Water adding control method for steam box
Technical Field
The invention relates to the field of steam boxes, in particular to a water adding control method of a steam box.
Background
Adopt the built-in steam ager of steam generator on the existing market mainly be with steam generator directly place the steam ager cavity in, then utilize the produced steam of this steam generator directly to add the steam ager cavity, this mode exists the drawback that is difficult to the accurate water level of judging steam generator.
In the actual operation of the above steam box, the water level in the steam generator needs to be accurately detected. For example, it is currently common to detect the water level in the steam generator by means of communication or by means of dry burning. When the water level in the steam generator is detected in a communication mode, the steam generator often blocks a communication device due to inflow of oil stains in food, and once the communication device is not cleaned for a long time, the blockage phenomenon occurs; when the water level in the steam generator is detected by dry burning, the service life of the steam generator is seriously shortened if the water level of the steam generator is detected by the dry burning for a long time.
Disclosure of Invention
The invention aims to solve the technical problem of providing a water adding control method of a steam box in view of the prior art. The water adding control method of the steam box can automatically control the injection of a proper amount of water and avoid the dry-burning water from entering the steam generator, so as to ensure the normal heating work of the steam box.
The technical scheme adopted by the invention for solving the technical problems is as follows: a water adding control method of a steam box is used for the steam box internally provided with a steam generator and externally provided with a water tank, the steam generator is provided with a cavity, an internal heating pipe, an external heating pipe and a chassis which is provided with a temperature detection device and is positioned at the bottom of the cavity, and the water adding control method of the steam box is characterized by comprising the following steps:
step 1, acquiring rated power of an inner heating pipe and rated power of an outer heating pipe of a steam generator under a preset standard working voltage; wherein the preset standard working voltage mark is VStandard of meritThe rated power of the internal heating tube of the steam generator is marked as PInner pipeThe rated power of the external heating pipe of the steam generator is marked as POuter tube；
Step 2, continuously adding water into the steam generator for a first water injection time from the water tank according to a preset fixed flow rate; wherein the first water filling time mark is TWater injection 1；
Step 3, starting an inner heating pipe and an outer heating pipe of the steam generator, continuously heating the water injected into the steam generator by the inner heating pipe at the rated power of the inner heating pipe for a first heating time, and continuously heating the water injected into the steam generator by the outer heating pipe at the rated power of the outer heating pipeThe water in the steam generator reaches the second heating time so that the water added into the steam generator is used up after the first water injection time; wherein the first heating time stamp is THeating 1And the second heating time mark is THeating 2；
Step 4, adding water of a second water injection time into the steam generator again by the water tank at the preset fixed flow speed, and commanding the inner heating pipe and the outer heating pipe of the steam generator to respectively execute heating work at respective rated power; wherein the second water filling time mark is TWater injection 2；
Step 5, when the temperature of the chassis of the steam generator is detected to exceed a preset dry-burning determined temperature threshold value, adding water for a third water injection time into the steam generator at the preset fixed flow rate again, and commanding the inner heating pipe and the outer heating pipe of the steam generator to continue to perform heating work at respective rated power; wherein the preset dry-fire determination temperature threshold is marked as TemThreshold value of dry burningAnd the third water filling time mark is TWater injection 3；
Step 6, when the temperature of the chassis of the steam generator is detected to exceed the preset dry-burning determination temperature threshold again, acquiring third heating time from the heating working time of the inner heating pipe continuously executed in the step 5 to the current time and fourth heating time from the heating working time of the outer heating pipe continuously executed in the step 5 to the current time; wherein the third heating time mark is THeating 3And the fourth heating time mark is THeating 4；
Step 7, calculating actual working voltages of the inner heating pipe and the outer heating pipe during working according to the first water injection time, the first heating time, the second heating time, the rated power of the inner heating pipe, the rated power of the outer heating pipe, the third heating time, the fourth heating time and the third water injection time; wherein the actual operating voltage is marked as VPractice of：
Figure BDA0001922113800000021
Step 8, adding water of a fourth water injection time into the steam generator at the preset fixed flow rate by the water tank, commanding the inner heating pipe and the outer heating pipe to continue heating, detecting fifth heating time for heating the current water added into the steam generator by the inner heating pipe in real time and detecting sixth heating time for heating the current water added into the steam generator by the outer heating pipe in real time; wherein the fourth water filling time mark is TWater injection 4The fifth heating time mark is THeating 5And the sixth heating time mark is THeating 6；
Step 9, when the water injection time in the steam generator, the actual working parameters of the inner heating pipe and the actual working parameters of the outer heating pipe meet the preset dry combustion prevention active water injection condition, adding water in a fourth water injection time into the steam generator at the preset fixed flow rate; otherwise, turning to step 4; wherein, the preset dry-burning prevention active water injection conditions are as follows:
Figure BDA0001922113800000031
further, in the water adding control method of the steam box, the preset standard working voltage VStandard of merit＝220V。
In the improved water adding control method of the steam box, the preset dry-heating determination temperature threshold TemThreshold value of dry burningIs 130 degrees celsius.
Compared with the prior art, the invention has the advantages that: firstly, the water adding control method of the steam box can automatically control the injection of a proper amount of water and avoid the dry burning into the steam generator once the dry burning of the steam box is detected after the reference relation between the rated power and the water injection quantity of the internal and external heating pipes of the built-in steam generator is determined, and the dry burning is avoided under the condition that the residual water of the steam generator is not much, so that the water level in the steam generator can be effectively detected without a communication device which is easy to block and frequent dry burning, and the normal work of the steam box is ensured; secondly, the water adding control method of the steam box can adjust the water adding time according to the voltage difference of different regions or different time periods in the same region.
Drawings
FIG. 1 is a schematic flow chart of a water adding control method of a steam box in an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Referring to fig. 1, the present embodiment provides a water adding control method for a steam box, which is used for a steam box with a built-in steam generator and an external water tank, wherein the steam generator has a cavity, an internal heating pipe, an external heating pipe, and a chassis which is provided with a temperature detection device and is located at the bottom of the cavity, and the water adding control method for the steam box includes the following steps:
step 1, acquiring rated power of an inner heating pipe and rated power of an outer heating pipe of a steam generator under a preset standard working voltage; wherein the preset standard working voltage mark is VStandard of meritThe rated power of the internal heating tube of the steam generator is marked PInner pipeThe rated power of the external heating tube of the steam generator is marked POuter tube(ii) a For example, the preset standard operating voltage V adopted in the embodimentStandard of meritIs 220V;
step 2, continuously adding water into the steam generator for a first water injection time from the water tank according to a preset fixed flow rate; wherein the first water filling time mark is TWater injection 1；
Step 3, starting an inner heating pipe and an outer heating pipe of the steam generator, continuously heating the water injected into the steam generator by the inner heating pipe at the rated power for a first heating time, and continuously heating the water injected into the steam generator by the outer heating pipe at the rated power for a second heating time, so that the water injected into the steam generator after the first water injection time is used up; wherein the first heating time mark is THeating 1And the second heating time is marked as THeating 2；
By executing the steps 1 to 3, the relationship between the power of the inner heating pipe, the power of the outer heating pipe and the water injection time into the steam generator can be determined, so that the reference relationship between the heating efficiency and the injection time (essentially the water injection amount) of the steam generator is determined;
step 4, adding water of a second water injection time into the steam generator again by the water tank at the preset fixed flow speed so as to avoid dry burning caused by no water in the steam generator originally, and commanding the inner heating pipe and the outer heating pipe of the steam generator to respectively execute heating work at respective rated power; wherein the second water filling time mark is TWater injection 2；
Step 5, when the temperature of the chassis of the steam generator is detected to exceed a preset dry-burning identified temperature threshold, indicating that the steam generator is about to enter a primary dry-burning state at the moment, adding water for a third water injection time into the steam generator again at the preset fixed flow rate to prevent direct dry burning, and commanding the inner heating pipe and the outer heating pipe of the steam generator to continue to perform heating work at respective rated powers; wherein the preset dry-burning determination temperature threshold is marked as TemThreshold value of dry burningAnd the third water filling time mark is TWater injection 3；
Step 6, when the temperature of the chassis of the steam generator is detected to exceed the preset dry-burning determined temperature threshold again, acquiring third heating time from the heating working time of the inner heating pipe continuously executed in the step 5 to the current time and fourth heating time from the heating working time of the outer heating pipe continuously executed in the step 5 to the current time; wherein the third heating time is denoted THeating 3And the fourth heating time is marked as THeating 4；
Step 7, calculating actual working voltages of the inner heating pipe and the outer heating pipe during working according to the first water injection time, the first heating time, the second heating time, the rated power of the inner heating pipe, the rated power of the outer heating pipe, the third heating time, the fourth heating time and the third water injection time; wherein the actual operating voltage is marked VPractice of：
Figure BDA0001922113800000041
By adopting the step 7, the problem of non-uniformity caused by voltage differences in different regions or different time periods in the same region can be effectively solved;
step 8, adding water of a fourth water injection time into the steam generator at the preset fixed flow rate by the water tank, commanding the inner heating pipe and the outer heating pipe to continue heating, and detecting fifth heating time for heating the current water added into the steam generator by the inner heating pipe and sixth heating time for heating the current water added into the steam generator by the outer heating pipe in real time; wherein the fourth water filling time mark is TWater injection 4The fifth heating time is marked as THeating 5And the sixth heating time is marked THeating 6；
Step 9, when the water injection time in the steam generator, the actual working parameters of the inner heating pipe and the actual working parameters of the outer heating pipe meet the preset dry-burning-prevention active water injection condition, water in a fourth water injection time is added into the steam generator at a preset fixed flow rate, namely, the water is added actively, but not added by dry burning, so that the dry burning times are reduced, and the residual water is in an effective range, so that the water is added only when the water in the steam generator is completely burnt and is about to enter the dry burning state; otherwise, if the water in the chassis does not reach the degree of being dried or does not reach the degree when the work is finished, the step 4 is carried out; wherein, the preset dry-burning prevention active water injection conditions are as follows:
Figure BDA0001922113800000051

Claims (3)

1. a water adding control method of a steam box is used for the steam box internally provided with a steam generator and externally provided with a water tank, the steam generator is provided with a cavity, an internal heating pipe, an external heating pipe and a chassis which is provided with a temperature detection device and is positioned at the bottom of the cavity, and the water adding control method of the steam box is characterized by comprising the following steps:
step 1, obtaining an internal heating tube of a steam generator under a preset standard working voltageRated power and rated power of the outer heating tube; wherein the preset standard working voltage mark is VStandard of meritThe rated power of the internal heating tube of the steam generator is marked as PInner pipeThe rated power of the external heating pipe of the steam generator is marked as POuter tube；
Step 2, continuously adding water into the steam generator for a first water injection time from the water tank according to a preset fixed flow rate; wherein the first water filling time mark is TWater injection 1；
Step 3, starting an inner heating pipe and an outer heating pipe of the steam generator, continuously heating the water injected into the steam generator by the inner heating pipe at the rated power for a first heating time, and continuously heating the water injected into the steam generator by the outer heating pipe at the rated power for a second heating time, so that the water injected into the steam generator after the first water injection time is used up; wherein the first heating time stamp is THeating 1And the second heating time mark is THeating 2；
Step 4, adding water of a second water injection time into the steam generator again by the water tank at the preset fixed flow speed, and commanding the inner heating pipe and the outer heating pipe of the steam generator to respectively execute heating work at respective rated power; wherein the second water filling time mark is TWater injection 2；
Step 5, when the temperature of the chassis of the steam generator is detected to exceed a preset dry-burning determined temperature threshold value, adding water for a third water injection time into the steam generator at the preset fixed flow rate again, and commanding the inner heating pipe and the outer heating pipe of the steam generator to continue to perform heating work at respective rated power; wherein the preset dry-fire determination temperature threshold is marked as TemThreshold value of dry burningAnd the third water filling time mark is TWater injection 3；
Step 6, when the chassis temperature of the steam generator is detected to exceed the preset dry-burning determination temperature threshold again, the third heating time from the heating working time of the inner heating pipe continuously executed in the step 5 to the current time is obtained, and the outer heating pipe continuously executed in the step 5Heating the fourth heating time from the working time to the current time; wherein the third heating time mark is THeating 3And the fourth heating time mark is THeating 4；
Step 7, calculating actual working voltages of the inner heating pipe and the outer heating pipe during working according to the first water injection time, the first heating time, the second heating time, the rated power of the inner heating pipe, the rated power of the outer heating pipe, the third heating time, the fourth heating time and the third water injection time; wherein the actual operating voltage is marked as VPractice of：
Figure FDA0001922113790000021
Step 8, adding water of a fourth water injection time into the steam generator at the preset fixed flow rate by the water tank, commanding the inner heating pipe and the outer heating pipe to continue heating, detecting fifth heating time for heating the current water added into the steam generator by the inner heating pipe in real time and detecting sixth heating time for heating the current water added into the steam generator by the outer heating pipe in real time; wherein the fourth water filling time mark is TWater injection 4The fifth heating time mark is THeating 5And the sixth heating time mark is THeating 6；
Step 9, when the water injection time in the steam generator, the actual working parameters of the inner heating pipe and the actual working parameters of the outer heating pipe meet the preset dry combustion prevention active water injection condition, adding water in a fourth water injection time into the steam generator at the preset fixed flow rate; otherwise, turning to step 4; wherein, the preset dry-burning prevention active water injection conditions are as follows:
Figure FDA0001922113790000022
2. the method of controlling water addition in a steam box of claim 1, wherein the pre-heating is performed in advanceSetting a standard working voltage VStandard of merit＝220V。
3. The method for controlling water addition of a steam box according to claim 1, wherein the preset dry-cooking determination temperature threshold TemThreshold value of dry burningIs 130 degrees celsius.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112050179A (en) * 2020-08-18 2020-12-08 宁波方太厨具有限公司 Self-adaptive control method of steam generator and steam generation system
CN112932254A (en) * 2021-01-28 2021-06-11 宁波方太厨具有限公司 Water quantity detection structure and detection method for water tank of cooking equipment and electric steam box
CN113842062A (en) * 2021-09-29 2021-12-28 杭州老板电器股份有限公司 Control method and device of humidification system and electric oven with humidification function
CN115844223A (en) * 2022-11-29 2023-03-28 米技生活科技(广东)有限公司 Water adding control method and energy-saving electric steam box

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EP1922961A1 (en) * 2005-09-10 2008-05-21 Crastal Technology (Shenzhen) Co., Ltd. A control method for preventing electrical water boiler from empty boiling
CN102078133A (en) * 2010-11-25 2011-06-01 佛山市顺德区美的电热电器制造有限公司 Electric food warmer and method thereof for automatically identifying water state after dry burning
CN102349790A (en) * 2011-11-01 2012-02-15 何*** Porridge soup machine having automatic water-feeding function
CN106724736A (en) * 2016-11-16 2017-05-31 李国华 Automatic watering grill pan
CN108968655A (en) * 2018-06-25 2018-12-11 华帝股份有限公司 A kind of steam cooking apparatus and control method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1922961A1 (en) * 2005-09-10 2008-05-21 Crastal Technology (Shenzhen) Co., Ltd. A control method for preventing electrical water boiler from empty boiling
CN102078133A (en) * 2010-11-25 2011-06-01 佛山市顺德区美的电热电器制造有限公司 Electric food warmer and method thereof for automatically identifying water state after dry burning
CN102349790A (en) * 2011-11-01 2012-02-15 何*** Porridge soup machine having automatic water-feeding function
CN106724736A (en) * 2016-11-16 2017-05-31 李国华 Automatic watering grill pan
CN108968655A (en) * 2018-06-25 2018-12-11 华帝股份有限公司 A kind of steam cooking apparatus and control method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112050179A (en) * 2020-08-18 2020-12-08 宁波方太厨具有限公司 Self-adaptive control method of steam generator and steam generation system
CN112050179B (en) * 2020-08-18 2021-11-19 宁波方太厨具有限公司 Self-adaptive control method of steam generator and steam generation system
CN112932254A (en) * 2021-01-28 2021-06-11 宁波方太厨具有限公司 Water quantity detection structure and detection method for water tank of cooking equipment and electric steam box
CN112932254B (en) * 2021-01-28 2022-05-17 宁波方太厨具有限公司 Water quantity detection structure and detection method for water tank of cooking equipment and electric steam box
CN113842062A (en) * 2021-09-29 2021-12-28 杭州老板电器股份有限公司 Control method and device of humidification system and electric oven with humidification function
CN113842062B (en) * 2021-09-29 2022-11-18 杭州老板电器股份有限公司 Control method and device of humidification system and electric oven with humidification function
CN115844223A (en) * 2022-11-29 2023-03-28 米技生活科技(广东)有限公司 Water adding control method and energy-saving electric steam box
CN115844223B (en) * 2022-11-29 2024-04-09 米技生活科技(广东)有限公司 Water adding control method and energy-saving electric steam box

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