JPH08266415A - Product finish detecting method for vacuum-heating cooking apparatus - Google Patents

Abstract

PURPOSE: To accurately detect a finished state by a compact device by a method wherein a device which cools steam being drawn from a vacuum-heating cooking apparatus and condenses the moisture is provided on the middle of a vacuum line, and the obtained condensed water quantity is measured, and when the condensed water quantity has reached a specified value, a completion signal is outputted. CONSTITUTION: For a vacuum-heating cooking apparatus 1, a steam jacket 9 is provided on the bottom, and steam is introduced into the steam jacket 9 by opening a steam- feeding control valve 11, and a food being placed in the vacuum-heating cooking apparatus 1 is heated. On the middle of a vacuum line 2 which is connected to the top of the vacuum heating cooking apparatus 1, a condensing device 3 being connected to a cooling water piping 6 is provided, and condensed water being generated at the condensing device is stored in a condensed water tank 4. Air and steam in the vacuum heating cooking apparatus 1 are drawn by a vacuum generating device 5 and discharged. Then, the condensed water quantity is measured by a scale device 8 being provided in the condensed water tank 4, and when the condensed water quantity becomes equal with a steam generation quantity which is inputted in advance, a control device 10 outputs a completion signal to notify the finish.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product finish detection method for a vacuum heating cooker.

[0002]

2. Description of the Related Art A vacuum heating cooker in which a vacuum generating device is connected to a heating cooker is widely used because it boils at a low temperature when heated under vacuum and can be boiled in a short time. In the case of a vacuum heating cooker that cooks while maintaining a vacuum, since the food inside cannot be confirmed during cooking, a means for detecting the finish status is necessary. As a method for detecting the finish status, Japanese Patent Publication No. 2-49698 The method described in can be used. When the food is boiled down, the water contained in the material is evaporated, and when the water content becomes constant, it is completed. In this known example, the weight of the entire cooking device containing the food to be heated is detected by a weighing device, and the water content is detected from the change in weight to detect the end time.

However, since the above method detects a large weight of the entire cooking device while detecting a change in the weight of the food to be heated contained in the cooking device, it is difficult to detect a minute change. Weighing equipment will be large-scale, and it cannot be immediately installed in existing equipment.

[0004]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to detect the finish of a product in a vacuum heating cooker which can accurately detect the finish status of the vacuum heating cooker with a compact device. To provide a method.

[0005]

[MEANS FOR SOLVING THE PROBLEMS] A vacuum line in which a vacuum generator is connected is connected to a heat cooker capable of being closed,
In a vacuum heating cooker that puts food to be heated in the heating cooker and discharges air in the heating cooker through a vacuum line connected to a vacuum generator while heating the food to be heated,
A condenser that cools the steam sucked from the vacuum heating cooker to condense water and a measuring device that measures the amount of condensed water obtained by the condenser are installed in the middle of the vacuum line so that the amount of condensed water reaches a specified value. When it does, it outputs an end signal.

[0006]

[Function] Steam generated by heating food is
Since everything is taken out through the vacuum line, a condenser is installed in the vacuum line and the amount of condensed water condensed by the condenser is measured to calculate the amount of steam generated from the heated food in the vacuum cooker. Yes, the water content of food can be known.
By calculating the amount of steam generated, it is possible to detect the finished state of the food to be heated, and by outputting an end signal when the amount of condensed water reaches the target value, it is always possible to obtain a good constant value. A quality product is obtained. When measuring the amount of condensed water, there is no need for a large-scale measuring device, which was necessary when measuring the weight of the entire cooking device, the accurate value can be easily detected, and it can be easily added to existing equipment. You can do it.

[0007]

An embodiment of the present invention will be described with reference to the drawings.
The vacuum heating cooker 1 is provided with a steam jacket 9 at the bottom, and the steam supply control valve 11 is opened to open the steam jacket 9
By introducing steam into the food, the food contained in the vacuum heating cooker 1 is heated. Further, a vacuum line 2 is connected to the upper part of the vacuum heating cooker 1, and a cooling water pipe 6 is connected in the middle of the vacuum line 2 to cool the steam in the vacuum line 2 and condense the water. A condensate tank 4 for accumulating condensed water generated in the condenser 3 is provided, and the vacuum generator 5 provided at one end of the vacuum line 2 sucks the condensed water so that the air in the vacuum heating cooker 1 Steam is discharged from the vacuum heating cooker 1. The condensed water tank 4 is provided with a weighing device 8 that is a device for measuring the amount of condensed water, and the weight detected by the weighing device 8 is sent to the control device 10.

When food is cooked, the ingredients are put in the vacuum heating cooker 1 and the vacuum heating cooker 1 is sealed. At that time, the steam generation amount, which is the difference between the weight of the input material and the weight of the finished product, is input to the control device 10. When the vacuum generator 5 is operated while introducing steam into the steam jacket 9, moisture is evaporated from the food to be heated in the vacuum heating cooker 1 and the generated steam is sucked through the vacuum line 2. Condensing device 3
Then, the steam flowing in the vacuum line 2 is cooled by the cooling water, and the steam becomes the condensed water 7 and the condensed water tank 4
Is stored. The weight of the condensed water 7 stored in the condensed water tank 4 is detected by the weighing device 8, and when the weight of the condensed water 7 becomes equal to the steam generation amount input in advance, the control device 10 outputs an end signal such as sounding a buzzer. And inform the finish.

The control unit 10 may be provided with an arithmetic unit so that the remaining time can be calculated from the weight of the condensed water 7 and displayed sequentially. By inputting the material weight to the control unit 10. The steam generation amount may be calculated in the control device 10. In addition, the control device 10 and the steam supply control valve 11 are connected to each other, and the steam supply control valve 1 is output when the end signal is output.
1 may be closed and automatically controlled to stop the steam supply.

Although an example using the weighing device 8 has been described as a means for detecting the amount of condensed water, the condensed water tank 4 may be provided with a water level detecting device to detect the amount of condensed water, and the amount of condensed water to be passed is detected. A flow meter may be provided to detect the amount of condensed water.

[0011]

By implementing the present invention, it is possible to accurately detect the finish in the vacuum heating cooker with a small-scale measuring device, and always obtain a good product of constant quality.

[Brief description of drawings]

FIG. 1 is a flow chart of an embodiment of the present invention.

[Explanation of symbols] 1 vacuum heating cooker 2 vacuum line 3 condenser 4 condensed water tank 5 vacuum generator 6 cooling water piping 7 condensed water 8 weighing device 9 steam jacket 10 controller 11 steam supply control valve

Claims (1)

[Claims] 1. A vacuum line to which a vacuum generator is connected is connected to a heat cooker that can be sealed, food to be heated is placed in the cooker, and the food to be heated is connected to the vacuum generator while heating. In the vacuum heating cooker that discharges the air in the heating cooker through the specified vacuum line, it is obtained in the middle of the vacuum line by a condenser and a condenser that cool the steam sucked from the vacuum heating cooker to condense water. A method for detecting product finish in a vacuum heating cooker, characterized in that a measuring device for measuring the amount of condensed water is provided and an end signal is output when the amount of condensed water reaches a predetermined value.