CN110881853A - Control method of steam box - Google Patents

Control method of steam box Download PDF

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Publication number
CN110881853A
CN110881853A CN201811056392.8A CN201811056392A CN110881853A CN 110881853 A CN110881853 A CN 110881853A CN 201811056392 A CN201811056392 A CN 201811056392A CN 110881853 A CN110881853 A CN 110881853A
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China
Prior art keywords
steam generator
water
time
steam
dry burning
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CN201811056392.8A
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CN110881853B (en
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洪坤
王伟
方献良
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/04Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/14Cooking-vessels for use in hotels, restaurants, or canteens
    • A47J27/16Cooking-vessels for use in hotels, restaurants, or canteens heated by steam
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/04Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A47J2027/043Cooking-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 control method of a steam box, which comprises the steps of firstly injecting water into a steam generator, realizing effective calculation of water loss speed in the steam generator in unit time through two times of dry burning of the steam generator when the steam generator is just used, and further calculating the water adding amount of the steam generator according to the water loss speed in the unit time, so that reasonable water amount can be added into the steam generator under the condition that water level information does not need to be obtained in the subsequent use process of the steam box, the steam amount generated by the steam generator can be ensured, and the dry burning condition can be effectively reduced.

Description

Control method of steam box
Technical Field
The invention relates to the technical field of steam boxes, in particular to a control method of a steam box capable of ensuring reasonable water adding to a steam generator.
Background
A steam box, which is widely used in kitchens as an electric appliance for steaming food and needs to supply water vapor when in operation, is provided with a steam generator to supply water vapor during cooking. The steam generator's of steam ager placing method on the existing market mainly has two kinds, one kind is arranged in the culinary art cavity outside, introduces the culinary art cavity with steam through the pipe in, and this steam generator's the mode of setting is unfavorable for its clearance. The other type is that the steam generator is directly arranged in the cooking cavity, and the arrangement mode of the steam generator is not beneficial to water level judgment. Because the water level of the water in the steam generator directly influences the cooking process, in the two steam generators, the adopted water level detection methods comprise: one is to judge the water level in the steam generator by the communication principle, for example, in the Chinese utility model patent with the publication number of CN204120795U (application number of 201420538940.1), the cold and hot water exchanger is connected with the steam generator, and the steam generator is connected with the steam chamber and the water level detector. The water level detector is connected with the steam generator, so that the water quantity in the steam generator can be well observed, and the phenomenon of evaporation to dryness or excessive water quantity is avoided. The mode has the defects that once oil stains in food flow into the communicating device, the communicating device is blocked after long-term cleaning, and the condition that the water level detection is inaccurate occurs. The other is to obtain water level information through electrodes, such as chinese utility model patent with publication number CN205782799U (application number CN201620697581.3) 'an electric steam generator' in which the requirement for the heating body is high even if the water level is detected by using the upper water level electrode and the lower water level electrode.
Disclosure of Invention
The invention aims to solve the technical problem of providing a control method of a steam box, which can realize reasonable water adding in a steam generator in the use process of the steam box only by twice dry burning on the basis of not arranging a water level detection part in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a control method of a steam box is characterized by comprising the following steps: the method comprises the following steps:
s1, after detecting a door closing signal and a starting signal of the steam box, injecting water into the steam generator for L time;
s2, judging whether water is injected for the first time, if so, carrying out S3, and if not, carrying out S8;
s3, heating by a heating device in the steam generator until dry burning occurs;
s4, stopping the operation of a heating device in the steam generator, and simultaneously injecting water into the steam generator for X time;
s5, continuing heating work by the heating device in the steam generator until dry burning occurs again, and stopping work by the heating device in the steam generator;
s6, acquiring the accumulated working time T of the steam generator between the current dry burning and the last dry burning, and calculating the water loss speed V in unit time within the working time T range as X/T;
s7, adding water into the steam generator for Y ═ V × (T)/C + Z ═ X/C + Z, wherein C is a positive number and C is more than 1, Z is compensation time, and Z is a positive number;
and S8, heating by a heating device in the steam generator, and adding water into the steam generator once at intervals of T/C, wherein the water adding time is Y.
In order to avoid adding excessive water into the steam generator, in S1, the timing method of the water injection time L is as follows:
s1.1, performing accumulative timing on water injection accumulative time A;
s1.2, judging whether the A reaches L, if so, clearing the water injection accumulation time A, and simultaneously carrying out S2; if not, S1.3 is carried out;
s1.3, judging whether the work of the steam box is interrupted, and if so, performing S1.4; if not, S1.1 is carried out;
s1.4, stopping heating by a heating device in the steam generator, and simultaneously recording the current water injection accumulated time A;
s1.5, judging whether the steam box is closed, and if so, performing S1.1.
According to different dry combustion temperatures, different amounts of water are injected, the dry combustion times in the use process are effectively reduced, the water injection time X is N or N + M, when the dry combustion temperature is detected to be smaller than W, the water injection time X is N, and when the dry combustion temperature is detected to be larger than or equal to W, the water injection time X is N + M, and M, N is positive.
In order to adjust the water adding amount in real time and ensure that reasonable water adding can be carried out under the condition of adapting to different condition changes, in S8, whether the dry burning condition occurs or not is judged, and if so, S4 is carried out.
Compared with the prior art, the invention has the advantages that: according to the control method of the steam box, through twice dry burning of the steam generator when the steam generator is just used, effective calculation of water loss speed in the steam generator in unit time is achieved, and then calculation is conducted on the water adding amount of the steam generator according to the water loss speed in the unit time, so that reasonable water can be added into the steam generator in the subsequent using process of the steam box under the condition that water level information does not need to be obtained, the steam amount generated by the steam generator can be guaranteed, and the dry burning condition can be effectively avoided.
Drawings
FIG. 1 is a flow chart of a 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.
As shown in fig. 1, the method for controlling a steam box in this embodiment includes the following steps:
s1, after detecting a door closing signal and a starting signal of the steam box, injecting water into the steam generator, wherein the set water injection time is L; the water injection time L is reasonably set according to experimental data, and the condition of dry burning can be avoided as much as possible in the S8 process.
The timing method of the water injection time L adopts an accumulative timing method, so that excessive water addition caused by that a client starts to cancel work for many times in a short time can be prevented, and the method specifically comprises the following steps:
s1.1, performing accumulative timing on water injection accumulative time A;
s1.2, judging whether the A reaches L, if so, clearing the water injection accumulation time A, and simultaneously carrying out S2; if not, S1.3 is carried out;
s1.3, judging whether the steam box is interrupted or not, wherein the interrupted condition is abnormal, the steam box is cancelled or a steam box door is opened, and if so, performing S1.4; if not, S1.1 is carried out;
s1.4, stopping heating by a heating device in the steam generator, and simultaneously recording the current water injection accumulated time A;
s1.5, judging whether the steam box is closed, and if so, performing S1.1;
s2, judging whether water is injected for the first time, if so, carrying out S3; if the steam box is bought for use and is used for the first time, water is filled into the steam generator for the first time;
if not, go to S8;
s3, heating by a heating device in the steam generator until dry burning occurs; when the heating device works, high-power heating is carried out during preheating so as to quickly reach a set temperature; after the set temperature is reached, low-power work is carried out, and the temperature and the steam in the steam box are maintained;
s4, stopping the operation of the heating device in the steam generator; when the heating is cancelled during dry burning, the heating device stops working to prevent the temperature of the heating plate from being overhigh during dry burning, and in addition, a large amount of steam can be generated during water adding to meet the stability of the temperature; the heating device stops working, and the temperature controller can be prevented from being closed due to overhigh temperature, and the later temperature rise time is influenced due to long recovery time of the temperature controller;
simultaneously injecting water into the steam generator for X time;
the water injection time X is N or N + M, when the dry burning temperature is detected to be less than W, the water injection time X is N, and when the dry burning temperature is detected to be more than or equal to W, the water injection time X is N + M; m, N is a positive number;
if the dry-burning temperature is 120 ℃, the working power of the heating device is relatively small, and at the moment, X is N; when the dry-burning temperature exceeds 120 ℃, if the dry-burning temperature reaches 130 ℃, the working power of the heating device is relatively large, and at the moment, X is N + M, so that the reliable operation of the heating device is ensured;
s5, continuing heating work by the heating device in the steam generator until dry burning occurs again, and stopping work by the heating device in the steam generator;
s6, acquiring the accumulated working time T of the steam generator between the current dry burning and the last dry burning, and calculating the water loss speed V in unit time within the working time T range as X/T;
s7, adding water into the steam generator for Y ═ V × (T)/C + Z ═ X/C + Z, wherein C is a positive number and C is more than 1, Z is compensation time, and Z is a positive number;
and S8, heating by a heating device in the steam generator, and adding water into the steam generator once at intervals of T/C, wherein the water adding time is Y.
In the subsequent working process of the steam box, the water adding scheme in the S8 is adopted, whether the dry burning condition occurs is judged in the process, if yes, S4 is carried out, the water loss speed in unit time is recalculated, the reasonable water adding scheme is formulated again, and the dry burning condition is reduced.
The control method of the steam box is particularly suitable for the steam box which is internally provided with a steam generator, externally provided with a water tank and only has water inflow and no water return.
According to the control method of the steam box, through twice dry burning of the steam generator when the steam generator is just used, effective calculation of water loss speed in the steam generator in unit time is achieved, and then calculation is conducted on the water adding amount of the steam generator according to the water loss speed in the unit time, so that reasonable water can be added into the steam generator in the subsequent using process of the steam box under the condition that water level information does not need to be obtained, the steam amount generated by the steam generator can be guaranteed, and the dry burning condition can be effectively reduced.

Claims (4)

1. A control method of a steam box is characterized by comprising the following steps: the method comprises the following steps:
s1, after detecting a door closing signal and a starting signal of the steam box, injecting water into the steam generator for L time;
s2, judging whether water is injected for the first time, if so, carrying out S3, and if not, carrying out S8;
s3, heating by a heating device in the steam generator until dry burning occurs;
s4, stopping the operation of a heating device in the steam generator, and simultaneously injecting water into the steam generator for X time;
s5, continuing heating work by the heating device in the steam generator until dry burning occurs again, and stopping work by the heating device in the steam generator;
s6, acquiring the accumulated working time T of the steam generator between the current dry burning and the last dry burning, and calculating the water loss speed V in unit time within the working time T range as X/T;
s7, adding water into the steam generator for Y ═ V × (T)/C + Z ═ X/C + Z, wherein C is a positive number and C is more than 1, Z is compensation time, and Z is a positive number;
and S8, heating by a heating device in the steam generator, and adding water into the steam generator once at intervals of T/C, wherein the water adding time is Y.
2. The control method of the steam box according to claim 1, characterized in that: in S1, the method for timing the water injection time L includes:
s1.1, performing accumulative timing on water injection accumulative time A;
s1.2, judging whether the A reaches L, if so, clearing the water injection accumulation time A, and simultaneously carrying out S2; if not, S1.3 is carried out;
s1.3, judging whether the work of the steam box is interrupted, and if so, performing S1.4; if not, S1.1 is carried out;
s1.4, stopping heating by a heating device in the steam generator, and simultaneously recording the current water injection accumulated time A;
s1.5, judging whether the steam box is closed, and if so, performing S1.1.
3. The control method of the steam box according to claim 1, characterized in that: and the water injection time X is N or N + M, when the dry burning temperature is detected to be less than W, the water injection time X is equal to N, and when the dry burning temperature is detected to be more than or equal to W, the water injection time X is equal to N + M, and M, N is positive.
4. A control method of a steam box according to any one of claims 1 to 3, characterized in that: at S8, it is judged whether or not dry burning has occurred, and if so, S4 is performed.
CN201811056392.8A 2018-09-11 2018-09-11 Control method of steam box Active CN110881853B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111904263A (en) * 2020-05-13 2020-11-10 宁波方太厨具有限公司 Water adding method of electric steam box
CN112806839A (en) * 2021-02-07 2021-05-18 珠海格力电器股份有限公司 Steam generator control method and device, steam generator and steam oven
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101956970A (en) * 2010-10-08 2011-01-26 晶辉科技(深圳)有限公司 Steam generation device, control method thereof and household electric steam box
CN103842738A (en) * 2011-08-15 2014-06-04 施特里克斯有限公司 Flow heaters
CN103892693A (en) * 2014-03-28 2014-07-02 广东美的厨房电器制造有限公司 Water deficiency detection method, water deficiency detection device and steam cooking utensil
US20140226960A1 (en) * 2011-08-26 2014-08-14 Xiaoming Chen Rapid preparation method of high-quality hot water and preparation device thereof
CN106430468A (en) * 2016-11-25 2017-02-22 宁波方太厨具有限公司 Waterway structure of steam box and steam box adopting waterway structure
CN107157316A (en) * 2016-03-07 2017-09-15 广东美的生活电器制造有限公司 A kind of liquid heating, electric hot water bottle and its anti-dry control method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101956970A (en) * 2010-10-08 2011-01-26 晶辉科技(深圳)有限公司 Steam generation device, control method thereof and household electric steam box
CN103842738A (en) * 2011-08-15 2014-06-04 施特里克斯有限公司 Flow heaters
US20140226960A1 (en) * 2011-08-26 2014-08-14 Xiaoming Chen Rapid preparation method of high-quality hot water and preparation device thereof
CN103892693A (en) * 2014-03-28 2014-07-02 广东美的厨房电器制造有限公司 Water deficiency detection method, water deficiency detection device and steam cooking utensil
CN107157316A (en) * 2016-03-07 2017-09-15 广东美的生活电器制造有限公司 A kind of liquid heating, electric hot water bottle and its anti-dry control method
CN106430468A (en) * 2016-11-25 2017-02-22 宁波方太厨具有限公司 Waterway structure of steam box and steam box adopting waterway structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111904263A (en) * 2020-05-13 2020-11-10 宁波方太厨具有限公司 Water adding method of electric steam box
CN111904263B (en) * 2020-05-13 2021-08-20 宁波方太厨具有限公司 Water adding method of electric steam box
CN112806839A (en) * 2021-02-07 2021-05-18 珠海格力电器股份有限公司 Steam generator control method and device, steam generator and steam oven
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

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Denomination of invention: A Control Method for Steamer Box

Granted publication date: 20210723

Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch

Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd.

Registration number: Y2024980024221