CN113068995B - Steam box and steam quantity control method thereof - Google Patents

Abstract

The invention relates to a steam box and a steam quantity control method thereof, wherein the steam box comprises a box body, a cooking cavity is formed in the box body, a steam generator capable of introducing steam into the cooking cavity and a water supply box communicated with the steam generator are arranged in the box body, and the steam box is characterized in that: culinary art chamber top is equipped with the steam condensate strip, and steam condensate strip lower part corresponds and is equipped with the comdenstion water guiding gutter that can catch the comdenstion water that drips from the steam condensate strip, cooks the intracavity and is equipped with the water catch bowl with the comdenstion water guiding gutter intercommunication. Compared with the prior art, the invention has the advantages that: through setting up steam condensate strip and comdenstion water guiding gutter at culinary art chamber top, when steam is excessive, steam condensate strip can in time cool off excessive steam, and the comdenstion water guiding gutter can be collected the comdenstion water that drips, and the comdenstion water can not drip to food or culinary art chamber bottom, avoids culinary art chamber bottom ponding.

Description

Steam box and steam quantity control method thereof

Technical Field

The invention relates to a steam box and a steam quantity control method thereof.

Background

According to the demonstration of China cooking Association and Nutrition society, steaming is the cooking mode which can keep the original taste and flavor of food and keep the nutrition of the food, but realizes the steaming cooking appliance. The existing steam box has certain disadvantages in use, firstly, the steam generation time is long, time and labor are wasted, and the operation experience of a user is poor when the steam box is used every time; secondly, more condensed water is easily generated in the cooking cavity, and the condensed water easily overflows the cavity to pollute the cabinet; thirdly, the control of the steam generating rate of the steam generator is unstable, which easily causes excessive or insufficient steam in the cavity and influences the cooking effect of food, if the steam is excessive, the food is easily influenced by the steam, so that the food becomes 'wet-and-hot' after being cooked, the taste is influenced, and in addition, the excessive steam can also cause the increase of energy consumption and the waste of energy; if the steam is too little, the steam does not conduct heat sufficiently with the food, resulting in problems of the food being steamed unripe and the required cooking time being prolonged.

Disclosure of Invention

The invention aims to solve the primary technical problem of providing a steam box which can timely condense part of steam when the steam is excessive and can not directly drip the generated condensed water on food in the prior art.

The invention further aims to provide a steam amount control method of the steam box for dynamically adjusting the steam amount.

The technical scheme adopted by the invention for solving the above-mentioned primary technical problems is as follows: the utility model provides a steam box, includes the box, is formed with the culinary art chamber in the box, is equipped with the steam generator that can let in steam to the culinary art intracavity in the box, with the feed water tank of steam generator intercommunication, its characterized in that: culinary art chamber top is equipped with the steam condensate strip, and steam condensate strip lower part corresponds and is equipped with the comdenstion water guiding gutter that can catch the comdenstion water that drips from the steam condensate strip, cooks the intracavity and is equipped with the water catch bowl with the comdenstion water guiding gutter intercommunication.

As an improvement, the condensate water guiding groove is connected with a lifting mechanism, and can rise under the driving of the lifting mechanism, so that the steam condensate strips are embedded into the condensate water guiding groove, and the condensate water guiding groove can also fall under the driving of the lifting mechanism, so that condensate water dropping from the steam condensate strips is collected.

The steam condensation strip is a condensation water pipe, and an inlet of the condensation water pipe is connected with a water pump and then communicated with a cold water tank; the outlet of the condensate pipe is directly communicated with the cold water tank.

And the water collecting tank is arranged at the rear side of the cooking cavity, and an included angle alpha is formed between the condensed water guide groove and the horizontal plane and is 3-5 degrees.

The improvement is that the water collecting tank is arranged at the following positions: when the condensed water diversion trench descends under the driving of the lifting mechanism, the condensed water diversion trench is just aligned and communicated with the condensed water diversion trench.

The steam condensation strip is a plurality of 'bow' -shaped or 'S' -shaped or 'U' -shaped condensation pipes which are distributed at intervals or in a winding and reciprocating way; the structure of the condensed water diversion trench is the same as that of the steam condensate strip, and the width of the condensed water diversion trench is larger than the diameter of the condensed water pipe.

And the water tank is the same as the water supply tank, and the water collecting tank is communicated with the water supply tank through a water suction pump.

The technical scheme adopted by the invention for solving the further technical problems is as follows: a steam quantity control method of the steam box with the structure is characterized by comprising the following steps:

step 1, starting a steam generator;

step 2, when the temperature in the cooking cavity reaches a preset temperature, starting a water pump, and introducing cold water in a cold water tank into a condensate pipe; meanwhile, a lifting mechanism is started to drive the condensate water diversion trench to descend;

step 3, calculating the steam content Q in the cooking cavity after cold water is introduced into the condensate pipe through the following formula:

wherein: v_{Product produced by birth}Is the rate of steam volume produced by the steam generator over time;

V_coldThe steam quantity rate which is reduced along with the time in the cooking cavity after cold water is introduced into the condensate pipe;

delta Q is the steam condensation amount caused by other reasons in the cooking cavity, and is a preset constant;

step 4, if Q is Q_min～Q_maxIf the steam content is within the range, judging that the steam content in the cooking cavity is normal; if Q is<Q_minIncreasing steam generator power to increase v_{Product produced by birth}Or turning off the water pump to lower V_ColdUntil Q is restored to Q_min～Q_maxWithin the range; if Q>Q_maxThen the steam generator power is reduced to reduce v_{Product produced by birth}Until Q is restored to Q_min～Q_maxWithin the range; q_minAnd Q_maxIs a preset parameter.

In saidstep 4, when Q is<Q_minIncreasing steamGenerator power to increase v_{Product produced by birth}To (2-. alpha.) v_{Product produced by birth}Or turning off the water pump to lower V_ColdLet V be_Cold＝αv_ColdWherein

In saidstep 4, when Q is>Q_maxReducing the power of the steam generator to v_{Product produced by birth}Reduced to (2-. beta.) v_{Product produced by birth}，

Compared with the prior art, the invention has the advantages that: by arranging the steam condensation strip and the condensate water diversion groove on the top of the cooking cavity, when excessive steam exists, the steam condensation strip can timely cool the excessive steam, the condensate water diversion groove can collect the dropped condensate water, the condensate water cannot drop to food or the bottom of the cooking cavity, and water accumulation at the bottom of the cooking cavity is avoided; in the improvement scheme, the steam quantity control method can dynamically adjust the steam content in the cooking cavity, so that the steam content is always maintained in a proper range value, and excessive or insufficient steam is avoided.

Drawings

FIG. 1 is a schematic structural diagram of a steam box according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a condensate guiding gutter and a water collecting gutter according to an embodiment of the present invention.

FIG. 3 is a flow chart of a vapor amount control method according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The steam box shown in the figure 1 comprises a box body 1, wherein a cooking cavity 11 is formed in the box body, a steam generator (not shown in the figure) capable of introducing steam into the cooking cavity is arranged in the box body 1, a water supply tank (not shown in the figure) communicated with the steam generator is arranged in the box body, a steam condensation strip 2 is arranged at the top of the cooking cavity 11, a condensatewater guide groove 3 capable of receiving condensate water dropping from the steam condensation strip is correspondingly arranged at the lower part of the steam condensation strip, and awater collecting groove 4 communicated with the condensate water guide groove is arranged in the cooking cavity.

In the embodiment, the steam condensation strips 2 are provided with a plurality of U-shaped condensation pipes which are distributed at intervals, and inlets of the condensation pipes are connected with the water pump and then communicated with the cold water tank; the outlet of the condensate pipe is directly communicated with the cold water tank; the structure of comdenstionwater guiding gutter 3 is the same with the steam condensate strip, the width of comdenstion water guiding gutter is greater than the condensate pipe diameter, many comdenstionwater guiding gutters 3 form wholly throughtransverse connection support 5 is fixed together, and be connected with the elevating system that electric putter 6 constitutes all around, these comdenstion water guiding gutters can rise under the drive of electric putter 6, thereby make inside the steam condensate strip embedding comdenstion water guiding gutter, the comdenstion water guiding gutter also can descend under the drive of electric putter 6, thereby collect the comdenstion water from the drippage of steam condensate strip. The water collectingtank 4 is arranged at the rear side of the cooking cavity, an included angle alpha is formed between the condensedwater guide groove 5 and the horizontal plane, and alpha is 3-5 degrees, so that condensed water can automatically flow into the water collectingtank 4 under the action of self weight; the position of thewater collection tank 4 is set as follows: when the condensed water diversion trench descends under the driving of the lifting mechanism, the condensed water diversion trench is just aligned and communicated with the condensed water diversion trench.

In addition, the steam condensation strip can also be a plurality of 'bow' -shaped or 'S' -shaped condensation pipes which are distributed at intervals, and also can be a plurality of 'bow' -shaped or 'S' -shaped condensation pipes which are distributed in a winding and reciprocating way and are communicated with each other at the head.

In this embodiment, the cold water tank is the same water tank with the feed tank, the water catch bowl passes through suction pump and feed tank intercommunication.

The steam quantity control method of the steam box comprises the following steps:

step 1, starting a steam generator;

step 2, when the temperature in the cooking cavity reaches a preset temperature, starting a water pump, and introducing cold water in a cold water tank into a condensate pipe; meanwhile, a lifting mechanism is started to drive the condensate water diversion trench to descend;

step 3, calculating the steam content Q in the cooking cavity after cold water is introduced into the condensate pipe through the following formula:

wherein: v_{Product produced by birth}Is the rate of steam volume produced by the steam generator over time;

V_coldThe steam quantity rate which is reduced along with the time in the cooking cavity after cold water is introduced into the condensate pipe;

delta Q is the steam condensation amount caused by other reasons in the cooking cavity, and is a preset constant;

step 4, if Q is Q_min～Q_maxIf the steam content is within the range, judging that the steam content in the cooking cavity is normal; if Q is<Q_minIncreasing steam generator power to increase v_{Product produced by birth}Or turning off the water pump to lower V_ColdUntil Q is restored to Q_min～Q_maxWithin the range; if Q>Q_maxThen the steam generator power is reduced to reduce v_{Product produced by birth}Until Q is restored to Q_min～Q_maxWithin the range; q_minAnd Q_maxIs a preset parameter.

In this embodiment, in thestep 4, when Q is satisfied<Q_minIncreasing steam generator power to increase v_{Product produced by birth}To (2-. alpha.) v_{Product produced by birth}Or turning off the water pump to lower V_ColdLet V be_Cold＝αv_ColdWherein

When Q is>Q_maxReducing the power of the steam generator to v_{Product produced by birth}Reduced to (2-. beta.) v_{Product produced by birth}，

In this example, V_{Product produced by birth}And v_ColdFitting can be performed in advance in a laboratory through experimental data; in this embodiment, the rate of steam flow generated by the steam generator over time

Wherein v is_maxThe steam quantity rate generated by the steam generator in unit time at the maximum power; t isTime parameter, dt is a preset value, exp is an exponential function;

wherein v is_maxThe steam quantity rate generated by the steam generator in unit time at the maximum power; t is a time parameter, t₀Dt is a preset value and exp is an exponential function at the moment when the water pump is started and cold water in the cold water tank is introduced into the condensate pipe.

Claims (9)

1. The utility model provides a steam box, includes the box, is formed with the culinary art chamber in the box, is equipped with the steam generator that can let in steam to the culinary art intracavity in the box, with the feed water tank of steam generator intercommunication, its characterized in that: the top of the cooking cavity is provided with a steam condensation strip, the lower part of the steam condensation strip is correspondingly provided with a condensed water diversion groove which can catch condensed water dropping from the steam condensation strip, and a water collection groove communicated with the condensed water diversion groove is arranged in the cooking cavity; the condensate water guiding gutter is connected with a lifting mechanism, and can rise under the driving of the lifting mechanism, so that the steam condensate strips are embedded into the condensate water guiding gutter, and the condensate water guiding gutter can also fall under the driving of the lifting mechanism, so that condensate water dropping from the steam condensate strips is collected.

2. The steam box of claim 1, wherein: the steam condensation strip is a condensation water pipe, and an inlet of the condensation water pipe is connected with the water pump and then communicated with the cold water tank; the outlet of the condensate pipe is directly communicated with the cold water tank.

3. The steam box of claim 1, wherein: the water collecting tank is arranged on the rear side of the cooking cavity, and an included angle alpha is formed between the condensed water guide groove and the horizontal plane and is 3-5 degrees.

4. The steam box of claim 3, wherein: the position of the water collecting tank is arranged as follows: when the condensed water diversion trench descends under the driving of the lifting mechanism, the condensed water diversion trench is just aligned and communicated with the condensed water diversion trench.

5. The steamer of claim 1 or 2 or 3 or 4, wherein: the steam condensation strip is a plurality of 'bow' -shaped or 'S' -shaped or 'U' -shaped condensation pipes which are distributed at intervals or in a roundabout and reciprocating manner; the structure of the condensed water diversion trench is the same as that of the steam condensate strip, and the width of the condensed water diversion trench is larger than the diameter of the condensed water pipe.

6. The steam box of claim 2, wherein: the cold water tank and the water supply tank are the same water tank, and the water collecting tank is communicated with the water supply tank through a water suction pump.

7. A steam amount control method of a steam box according to claim 3, characterized by comprising the steps of:

step 1, starting a steam generator;

step 2, when the temperature in the cooking cavity reaches a preset temperature, starting a water pump, and introducing cold water in a cold water tank into a condensate pipe; meanwhile, a lifting mechanism is started to drive the condensate water diversion trench to descend;

step 3, calculating the steam content Q in the cooking cavity after cold water is introduced into the condensate pipe through the following formula:

wherein: v_{Product produced by birth}Is the rate of steam volume produced by the steam generator over time;

V_coldThe steam quantity rate which is reduced along with the time in the cooking cavity after cold water is introduced into the condensate pipe;

delta Q is the steam condensation amount caused by other reasons in the cooking cavity, and is a preset constant;

step 4, if Q is Q_min～Q_maxIf the steam content is within the range, judging that the steam content in the cooking cavity is normal; if Q < Q_minIncreasing steam generator power to increase v_{Product produced by birth}Or turning off the water pump to lower V_ColdUntil Q is restored to Q_min～Q_maxWithin the range; if Q > Q_maxThen the steam generator power is reduced to reduce v_{Product produced by birth}Until Q is restored to Q_min～Q_maxWithin the range; q_minAnd Q_maxIs a preset parameter.

8. The steam amount control method according to claim 7, characterized in that: in the step 4, when Q is less than Q_minIncreasing steam generator power to increase v_{Product produced by birth}To (2-. alpha.) v_{Product produced by birth}Or turning off the water pump to lower V_ColdLet V be_Cold＝αv_ColdWherein

9. The steam amount control method according to claim 7, characterized in that: in the step 4, when Q is more than Q_maxReducing the power of the steam generator to v_{Product produced by birth}Reduced to (2-. beta.) v_{Product produced by birth}，

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