KR20220048597A - Check valve and heating cooker comprising the same - Google Patents

Abstract

The present invention relates to a gas ejection check valve to stably perform heating and cooking, and a heating cooker including the same. According to the present invention, the heating cooker comprises: one or more heating baths accommodating an object to be heated and liquid; a high-temperature gas generation chamber generating high-temperature gas to heat the liquid and the object to be heated accommodated in the heating baths; a partition plate having one or more communication holes formed therein to communicate with the heating baths and the high-temperature gas generation chamber, and partitioning the heating baths and the high-temperature gas generation chamber; and one or more gas ejection check valves provided in the communication holes to supply the high-temperature gas generated in the high-temperature gas generation chamber to the heating baths, and preventing the liquid in the heating baths from flowing backward into the high-temperature gas generation chamber.

Description

Heating and cooking equipment equipped with gas injection check valve and gas injection check valve {CHECK VALVE AND HEATING COOKER COMPRISING THE SAME}

The present invention relates to a heating cooking apparatus provided with a gas injection check valve.

A heating cooking apparatus that heats and cooks water and a food material (a heating object) together heats the water and the food material in a heat conduction method. Heat generated by gas combustion after accommodating water and a heating object inside the cooking device. Alternatively, when the bottom surface of the cooking device is heated with heat generated from electricity, the heated bottom surface of the cooking device heats water and food ingredients accommodated in the cooking device. That is, the conventional heating apparatus is a method of transferring heat energy from the outside of the cooking apparatus to the inside of the cooking apparatus in a heat conduction method, and the bottom surface of the cooking apparatus serves as a heat conduction medium. However, there is a limit to improving thermal efficiency because heat loss is inevitable in the process of transferring heat energy from the outside of the cooking device to the inside of the cooking device through the bottom surface of the cooking device.

In order to solve this problem, a heating tank for accommodating food materials and water is formed in the upper part with a partition plate therebetween, and a high-temperature gas generating chamber for generating steam for heating the food materials and water in the heating tank is formed in the lower part, , a heating cooking device in which a plurality of hot gas fine injection holes for directly supplying steam generated in the hot gas generating chamber to the heating bath is formed on the partition plate has been developed.

In a conventional heating and cooking apparatus in which a heating tank and a high-temperature gas generating chamber are partitioned up and down, there are a plurality of fine injection holes in the partition plate, but water in the heating tank does not flow into the high-temperature gas generating chamber, because the steam generated in the high-temperature gas generating chamber This is because the pressure of the heating tank is maintained higher than the pressure of the heating tank. However, when steam is not generated in the high-temperature gas generating chamber and the steam is not injected into the heating tank through the high-temperature gas micro-injection port, there is a problem in that the water contained in the heating bath flows into the high-temperature gas generating chamber through the high-temperature gas fine injection hole of the partition plate. .

In addition, when steam is concentrated in the upper part of the high-temperature gas generating chamber, and cold water and food materials are put into the heating tank, the cold air in the heating tank is transferred to the dense steam in the upper part of the hot gas generating chamber through the partition plate, and the condensation phenomenon in which the steam phase changes to water is prevented. Occurs. When condensation occurs, a negative pressure (negative pressure) is instantaneously formed in the high-temperature gas generating chamber, and there is a problem in that the water contained in the heating tank flows into the high-temperature gas generating chamber.

In addition, steam is supplied to the inside of the heating tank through micro-holes formed in the partition plate during cooking, and the steam supplied to the heating bath is changed into water while in contact with water, so there is a problem in that the amount of water accommodated in the heating tank increases. Since the amount of water accommodated in the heating tank increases, there is a limitation that a cooking method of boiling water to complete the dish cannot be implemented.

Domestic Patent Publication No. 10-2000-0031813

The present invention is to solve the above problems, and it is an object of the present invention to provide a heating cooking apparatus capable of stably heating and cooking while preventing a liquid contained in a heating tank from flowing into a high-temperature gas generating chamber irrespective of the internal pressure of the hot gas generating chamber. purpose of the invention.

The present invention prevents the liquid contained in the heating tank from flowing into the high-temperature gas generating chamber even if the steam concentrated inside the hot gas generating chamber is condensed to generate instantaneous negative pressure in the hot gas generating chamber when generating steam with high-temperature gas, It is an object of the present invention to provide a heating cooking apparatus capable of stably heating and cooking.

An object of the present invention is to provide a heating cooking apparatus capable of heating and cooking by adjusting the amount of water contained in a heating bath to suit the needs of a user.

It is an object of the present invention, comprising: at least one heating bath containing a heating object and a liquid; a high-temperature gas generation chamber configured to generate a high-temperature gas to heat the liquid accommodated in the heating tank and the heating object; a partition plate forming at least one communication hole communicating the heating tank and the high-temperature gas generating chamber, and partitioning the heating bath and the high-temperature gas generating chamber; and one or more gas injection check valves provided in the communication hole to supply the hot gas generated in the hot gas generating chamber to the heating tank and at the same time prevent the liquid in the heating tank from flowing back into the hot gas generating chamber, This can be achieved by a heating cooking device.

Here, a stopper provided on the gas injection check valve may be further included, and the stopper may prevent the gas injection check valve from being separated while restricting the rise of the gas injection check valve.

In addition, the gas injection check valve may include: a valve body which is provided to be liftable in the communication hole and rises by the steam pressure generated in the high-temperature gas generating chamber; and a valve head provided in the valve body to open and close the communication hole according to the elevation of the valve body.

The valve body may include: a high-temperature gas flow path through which the high-temperature gas generated in the high-temperature gas generation chamber flows from the high-temperature gas generation chamber toward the heating tank; and one or more hot gas fine injection ports for discharging the hot gas flowing along the hot gas flow path to the heating tank.

The high-temperature gas fine injection hole may be provided in plurality, and the plurality of the high-temperature gas fine injection hole may be formed at intervals along the ascending/lowering direction of the valve body.

When the pressure of the hot gas generating chamber is maintained higher than the pressure of the heating tank by the steam pressure generated by the steam generated in the hot gas generating chamber, the hot gas flowing through the hot gas flow path of the valve body is generated by the hot gas. It can only flow in the direction of the heating bath in the chamber.

Auxiliary gas injection check valve provided in the valve body to be lifted and provided to supply the high-temperature gas generated in the high-temperature gas generation chamber to the heating tank and at the same time prevent the liquid in the heating tank from flowing back into the high-temperature gas generation chamber. can do.

an elastic member provided in the valve body located in the high-temperature gas generating chamber and compressed or stretched according to the elevation of the valve body; and an elastic member support portion that supports one end of the elastic member and is provided on the valve body to limit compression of the elastic member.

When the elastic member is compressed by the steam pressure generated by the steam generated in the high-temperature gas generating chamber, the high-temperature gas fine injection port is located in the heating tank, and when the elastic member is tensioned, the high-temperature gas fine injection port is located in the high-temperature gas generation chamber. can be located

The valve body may rise by the steam generated in the high-temperature gas generating chamber, and may descend by at least one of water pressure in the heating tank, gravity acting on the high-temperature gas check valve, and an elastic force of the elastic member.

When the valve body rises, the communication hole is opened, and the hot gas fine injection port is located in the heating tank. When the valve body descends, the valve head closes the communication hole, and the hot gas fine injection port is located in the hot gas generating chamber. can do.

A guide provided on the partition plate to guide the elevation of the valve body may be further included.

at least one heater configured to generate hot gas by heating the water contained in the hot gas generating chamber; a sensor for measuring pressure or temperature inside the high-temperature gas generating chamber; and a heater output control device for controlling the opening of the gas injection check valve by adjusting the output of the at least one heater, wherein the heater output control device is automatically controlled based on pressure data or temperature data measured by the sensor or It may further include a heater output control device that is manually controlled according to a user's input.

The heater output control device may control the output of the heater so that the steam generated inside the high-temperature gas generating chamber is equal to or less than the number of calories lost per hour due to heat conduction.

A sealing member provided on the valve body or the partition plate to seal between the valve head and the partition plate may be further included.

The heating tank and the high-temperature gas generating chamber may be integrally formed.

In addition, an object of the present invention, according to another field of the present invention, a valve body lifted by a hot gas pressure; a valve head provided on the valve body; a high-temperature gas flow path formed in the valve body and through which the high-temperature gas flows; one or more hot gas micro-injectors for injecting hot gas flowing along the hot gas flow path; and a stopper provided on the valve body, which restricts the elevation of the valve body and prevents the valve body from escaping, may also be achieved by a gas injection check valve.

Here, a guide for guiding the elevation of the valve body may be further included.

One or more auxiliary gas injection check valves provided in the valve body to be lifted and provided to supply the high-temperature gas generated in the high-temperature gas generation chamber to the heating tank and at the same time prevent the liquid in the heating bath from flowing back into the high-temperature gas generation chamber; may include more.

It may further include an elastic member for compressing or tensioning according to the elevation of the valve body.

On the other hand, the heating cooking apparatus according to the present invention is a pressurizing device for maintaining the pressure in the one or more heating tanks above atmospheric pressure; and a fastening device for fastening the pressurizing device to the heating cooking device.

According to the present invention, a gas injection check valve for supplying steam generated in the hot gas generating chamber to the heating tank and preventing the liquid in the heating tank from flowing back into the hot gas generating chamber is installed on the partition plate dividing the heating tank and the hot gas generating chamber. By providing in the formed communication hole, the liquid accommodated in the heating bath is prevented from flowing into the hot gas generating chamber regardless of the internal pressure of the hot gas generating chamber, and heating and cooking can be performed stably.

According to the present invention, the high-temperature gas is finely divided to maximize the heat transfer area and then directly sprayed into the heating bath to increase the efficiency of heating the liquid and the heating object in the heating bath.

According to the present invention, even if the pressure in the high-temperature gas generation chamber is lower than the heating bath pressure, the liquid contained in the heating bath is prevented from flowing into the high-temperature gas generation chamber through the micropores, thereby increasing the user's convenience and durability of the high-temperature gas generation chamber. can increase

According to the present invention, since the gas injection check valve serves as a safety valve that is opened at a constant pressure, there is no need to provide a separate safety valve for preventing the explosion of the high-temperature gas generating chamber, and the product manufacturing cost can be reduced.

According to the present invention, it is possible to increase the heating rate of the liquid and the object to be heated by eliminating the occurrence of a heating blind spot inside the heating tank by providing a double gas injection check valve.

1 is a block diagram of a heating cooking apparatus according to the present invention;
2 is a view showing an embodiment of a gas injection check valve applied to the heating and cooking apparatus of the present invention;
3 is a cross-sectional view of FIG. 2;
Figure 4 is a view showing a closed state of the gas injection check valve of Figure 2;
5 is a view showing an open state of the gas injection check valve of FIG. 2;
6 is a view showing another embodiment of the gas injection check valve applied to the heating cooking apparatus of the present invention;
7 , a cross-sectional view of FIG. 6 ,
8 is a view showing a closed state of the gas injection check valve of FIG. 6;
9 is a view showing an open state of the gas injection check valve of FIG. 6;
10 is a view showing another embodiment of the gas injection check valve applied to the heating and cooking apparatus of the present invention;
11 is a view showing another embodiment of the gas injection check valve applied to the heating and cooking apparatus of the present invention,
12 is a view showing an operating state of the gas injection check valve of FIG. 11 .

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless specifically defined explicitly.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, in various embodiments, the same reference numerals are used to represent components having the same configuration in one embodiment, and in other embodiments, configurations different from the one embodiment will be described.

In addition, in the following description, water is specified as a liquid, and steam is specified as a high-temperature gas.

1 shows a heating cooking apparatus according to the present invention.

As shown in Fig. 1, the heating and cooking apparatus 1 according to the present invention includes a heating tank 10, a high-temperature gas generating chamber 20, a partition plate 30, and a gas injection check valve 40a. include

The heating and cooking apparatus 1 has a hollow tubular shape with one side open.

The inside of the heating cooking apparatus 1 is divided up and down by a partition plate 30 , a heating tank 10 is formed in the upper portion of the heating cooking apparatus 1 , and hot gas is formed in the lower portion of the heating cooking apparatus 1 . A production chamber 20 is formed.

The heating bath 10 is a region in which a heating object is cooked, and accommodates the heating object and water as a liquid. In this embodiment, although it is illustrated that only one heating bath 10 is provided, the present invention is not limited thereto, and a plurality of heating baths 10 may be provided.

The high-temperature gas generating chamber 20 is disposed under the heating bath 10 and is a region for generating steam as high-temperature gas for heating the heating object and water accommodated in the heating bath 10 . Here, the high-temperature gas generating chamber 20 may generate hot water for heating an object to be heated and water in addition to steam. The hot water generated in the high-temperature gas generating chamber 20 may be supplied to the heating tank 10 together with steam.

On the other hand, the high-temperature gas generating chamber 20 is provided with an electric heater 25 for heating the water contained in the high-temperature gas generating chamber 20 to generate steam, which is a high-temperature gas.

Hot water is stored in the lower part of the high-temperature gas generating chamber 20, and steam, which is a hot gas, is stored in the upper part. Steam generated in the high-temperature gas generating chamber 20 is supplied to the heating tank 10 through the gas injection check valve 40a.

When water is heated by the heater 25 in the high-temperature gas generation chamber 20, steam is generated, and the internal pressure of the high-temperature gas generation chamber 20 becomes higher than the pressure (atmospheric pressure) of the heating tank 10 due to the steam generation, resulting in a high temperature The steam generated in the gas generating chamber 20 can be supplied to the heating tank 10 along the reverse direction of gravity without a separate power device.

Meanwhile, since steam is generated in the hot gas generating chamber 20 , the internal pressure of the hot gas generating chamber 20 is atmospheric pressure or higher, and the internal temperature is 100° C. or higher. For example, if the absolute pressure inside the high-temperature gas generation chamber 20 is 1.5 atmospheres, the boiling point inside the high-temperature gas generation chamber 20 is about 110°C. Accordingly, a phase change occurs in which water in the high-temperature gas generating chamber 20 changes from liquid water to gaseous steam at a boiling point of 110°C. However, even at 110° C. or higher, there may be water molecules that maintain the state of liquid water without a phase change into steam, which is a gas. The state in which the original phase is maintained even when heated above the temperature at which the phase change occurs is called superheating. Accordingly, the hot water generated in the high-temperature gas generating chamber 20 may include superheated water.

The output of the heater 25 may be controlled by the heater output control device 27 .

The heater output control device 27 adjusts the output of the heater 25 based on the pressure data or temperature data measured by the sensor 29 for measuring the pressure or temperature inside the high-temperature gas generation chamber 20 , The opening of the gas injection check valve 40a, which will be described later, is controlled.

The heater output control device 27 adjusts the output of the heater 25 so that the steam generated inside the high-temperature gas generation chamber 20 is equal to or less than the calories lost per hour due to heat conduction. may be

Here, in the present embodiment, although it is illustrated that the heating tank 10 and the high-temperature gas generation chamber 20 are integrally formed to seal the high-temperature gas generation chamber 20, the present invention is not limited thereto, and the heating bath 10 is not limited thereto. and the high-temperature gas generating chamber 20 may be provided to be separable.

The partition plate 30 divides the inside of the heating and cooking apparatus 1 into an upper space area and a lower space area. A heating bath 10 is formed in the upper space region, and a high-temperature gas generating chamber 20 is formed in the lower space region.

A plurality of communication holes 35 for communicating the heating tank 10 and the high-temperature gas generating chamber 20 are formed through the partition plate 30 .

In FIG. 1, a plurality of communication holes 35 are formed through the plate surface of the partition plate 30 at regular intervals, but the present invention is not limited thereto. In the case of being divided into a low-density region of energy supplied with a relatively small amount, the plurality of communication holes 35 may be formed through the partition plate 30 in different distributions.

The gas injection check valve 40a is provided in the communication hole 35 of the partition plate 30 , and supplies the steam generated in the high-temperature gas generating chamber 20 to the heating tank 10 , and at the same time as the heating tank 10 . It prevents the liquid from flowing back into the hot gas generating chamber 20 . The quantity of the gas injection check valve 40a is provided to correspond to the quantity of the communication hole 35 of the partition plate 30 .

The gas injection check valve 40a includes a valve body 41 and a valve head 51 .

The valve body 41 has a hollow pipe shape, and is provided in the communication hole 35 to be able to move up and down. The valve body 41 is raised and lowered by the steam pressure generated in the high-temperature gas generating chamber 20 .

Inside the valve body 41 , a steam flow path 43 through which steam generated in the high-temperature gas generating chamber 20 flows is formed along the longitudinal direction of the valve body 41 .

In addition, a plurality of high-temperature gas fine injection holes 47 for discharging steam flowing along the steam flow path 43 to the heating bath 10 are formed in the valve body 41 .

The diameter of the hot gas fine injection port 47 is 1 mm or less. The hot gas fine injection hole 47 divides the diameter of the steam into a size smaller than the diameter of the high temperature gas fine injection hole 47 and sprays it. Accordingly, the underwater ascending speed of the finely divided bubbles is limited, so that sufficient time can be secured for the thermal energy of the bubbles to be transferred to the liquid.

The hot gas fine injection port 47 is formed in a position adjacent to the valve head 51 . Accordingly, when the gas injection check valve 40a is closed, the high-temperature gas fine injection port 47 is located in the high-temperature gas generation chamber 20, and when the gas injection check valve 40a is opened, the high-temperature gas fine injection port 47 is heated. It is located in group (10). Accordingly, when the gas injection check valve 40a is closed, as the high-temperature gas fine injection port 47 is located in the high-temperature gas generation chamber 20 , the steam generated in the high-temperature gas generation chamber 20 is transferred to the heating tank 10 . It is not supplied, and when the gas injection check valve 40a is opened, as the hot gas fine injection port 47 is located in the heating tank 10 , the steam generated in the high temperature gas generating chamber 20 is transferred to the heating bath 10 . is supplied In this embodiment, a plurality of hot gas fine injection holes 47 are formed at intervals along the periphery of the valve body 41 , but only one hot gas fine injection hole 47 may be formed on the periphery of the valve body 41 . there is.

The valve head 51 is provided at one end of the valve body 41 , and opens and closes the communication hole 35 according to the elevation of the valve body 41 . The valve head 51 has a larger diameter than the communication hole 35 . Accordingly, when the valve body 41 descends and the gas injection check valve 40a is closed, the valve head 51 is mounted on the plate surface of the partition plate 30 and can close the communication hole 35 . .

Here, in this embodiment, it is shown that a plurality of hot gas fine injection holes 47 are formed at intervals along the circumferential direction of the valve body 41, but as shown in FIG. The high-temperature gas fine injection holes 47 may be formed at intervals along the elevating direction of the valve body 41 as well as in the circumferential direction of the valve body 41 . In this way, as the plurality of high-temperature gas fine injection ports 47 are formed at intervals along the elevation direction of the valve body 41, the gas injection check valve 40a rises according to the internal pressure of the high-temperature gas generation chamber 20. The degree of heating varies, and the number of hot gas fine injection holes 47 exposed to the inside of the heating bath 10 is changed, so that the amount of steam supplied to the inside of the heating bath 10 can be adjusted. In addition, although not shown, as another embodiment, only one hot gas fine injection hole 47 may be provided.

On the other hand, each communication hole 35 of the partition plate 30 is provided with a guide 61 guiding the elevation of the valve body 41 .

The guide 61 has a hollow pipe shape, and may have a diameter greater than or equal to that of the communication hole 35 . In addition, the guide 61 has a smaller length than the valve body 41 and is provided to protrude at a predetermined length from the plate surface of the partition plate 30 facing the high-temperature gas generating chamber 20 .

Accordingly, the valve body 41 moves up and down along the inside of the guide 61 so as to be able to withdraw into and out of the guide 61 .

In addition, a stopper 65 is provided at the other end of the valve body 41 of the gas injection check valve 40a. The stopper 65 contacts the free end of the guide 61 to limit the elevation of the valve body 41 .

Here, when the stopper 65 comes into contact with the free end of the guide 61 , the stopper 65 is coupled to the valve body 41 so that the hot gas fine jetting hole 47 is located in the heating bath 10 .

Meanwhile, the stopper 65 may be screwed to the outer periphery of the valve body 41 . Accordingly, by simply moving and coupling the stopper 65 along the longitudinal direction of the valve body 41 , it is possible to limit the elevation height of the valve body 41 with respect to the partition plate 30 .

Here, the undescribed reference numeral 91 denotes a sealing member mounted on the outer periphery of the valve body 41 to seal between the valve head 51 and the partition plate 30 . Although the O-ring is shown as the sealing member 91 in this embodiment, the sealing member 91 may be provided with various types of sealing members instead of the O-ring. In addition, although the sealing member 91 is shown to be mounted on the outer periphery of the valve body 41 in this embodiment, the sealing member 91 may be provided around the communication hole 35 of the partition plate 30 . there is.

With this configuration, a process of supplying steam from the high-temperature gas generating chamber 20 to the heating tank 10 of the heating and cooking apparatus 1 according to the present invention will be described as follows.

First, as shown in FIG. 4 , the heater 25 is operated in a state in which the heating tank 10 and the hot gas generating chamber 20 are each filled with water to heat the water contained in the hot gas generating chamber 20 . do. At this time, the valve head 51 is seated on the partition plate 30 by the weight of the valve body 41 and the valve head 51 of the gas injection check valve 40a, and the gas injection check valve 40a is closed. to keep In addition, the high-temperature gas fine injection port 47 of the valve body 41 is located in the high-temperature gas generating chamber 20 .

Then, the water accommodated in the high-temperature gas generating chamber 20 is heated, and steam above a certain pressure generates a force greater than the sum of the weights of the valve body 41 and the valve head 51 and the water pressure in the heating tank 10 . When pressure is generated in the high-temperature gas generating chamber 20 , the generated steam flows into the steam flow path 43 of the valve body 41 to raise the valve body 41 .

And, as the valve body 41 rises by the pressure of the steam, the valve head 51 rises apart from the partition plate 30, and the stopper 65 moves the guide 61 while the valve body 41 rises. ), the valve body 41 is no longer raised by the stopper 65 as shown in FIG. 5 . At this time, the high-temperature gas fine injection port 47 of the valve body 41 is positioned in the heating tank 10 .

Accordingly, the steam generated in the high-temperature gas generation chamber 20 flows along the steam flow path 43 of the valve body 41 toward the bottom of the heating tank 10 through the high-temperature gas micro-injection port 47 . It is continuously sprayed finely. In addition, by the pressure of steam finely injected into the heating tank 10 through the hot gas fine injection port 47 , the water accommodated in the heating bath 10 passes through the high temperature gas fine injection port 47 to the steam flow path 43 . It does not flow back into the high-temperature gas generation chamber 20 through the

Accordingly, the water and the heating object (food material) accommodated in the heating tank 10 are heated by the steam continuously provided through the gas injection check valve 40a.

On the other hand, when the steam pressure generated in the high-temperature gas generating chamber 20 is lower than the sum of the weights of the valve body 41 and the valve head 51 and the water pressure in the heating tank 10 , the valve body 41 and the valve Due to the weight of the head 51 , the valve body 41 descends toward the hot gas generating chamber 20 , so that the valve head 51 closes the communication hole 35 , and the hot gas fine injection port of the valve body 41 . (47) is located in the high-temperature gas generation chamber (20).

Accordingly, the steam of the high-temperature gas generation chamber 20 is not supplied to the heating tank 10 through the valve body 41 , but the water accommodated in the heating bath 10 also passes through the communication hole 35 through the high-temperature gas generation chamber ( 20) to prevent backflow.

On the other hand, the gas injection check valve 40a in the above-described embodiment forms a steam flow path 43 and a plurality of high-temperature gas fine injection holes 47 in the valve body 41, and the valve body 41 is a high-temperature gas It rises along the guide 61 by the steam pressure generated in the production chamber 20, and is finely sprayed into the heating tank 10 through the steam flow path 43 and the hot gas fine injection port 47. described, but not limited thereto. For example, although not shown, the gas injection check valve according to another embodiment does not include a steam flow path, a plurality of hot gas fine injection ports, and a guide, and each communication hole of the partition plate is formed larger than the diameter of the valve body, Steam may flow through a gap formed between the valve body and the circumference of the communication hole. As a result, when the valve head opens the communication hole as the valve body rises, the steam generated in the high-temperature gas generating chamber is supplied to the heating tank through the gap formed between the valve body and the communication hole, and at the same time, water accommodated in the heating tank is trapped in the gap. It is prevented from flowing back into the high-temperature gas generating chamber by the steam injected through the In addition, when the valve body is lowered and the valve body closes the communication hole, the water in the heating tank is prevented from flowing back into the hot gas generating chamber. 6 and 7 show a gas injection check valve of another embodiment.

As shown in these figures, the gas injection check valve 40b of another embodiment is different from the gas injection check valve 40a of the above-described embodiment, the elastic member 71 is mounted on the outer periphery of the valve body 41. .

The elastic member 71 is provided in the valve body 41 located in the high-temperature gas generating chamber 20 and is compressed or tensioned according to the elevation of the valve body 41 .

Here, although a coil spring is shown as the elastic member 71 in the present embodiment, the present invention is not limited thereto, and the elastic member 71 may be provided with various types of elastic materials.

One end of the elastic member 71 is supported by the elastic member support portion 75 .

The elastic member support part 75 has a disk shape, supports one end of the elastic member 71 and limits the compression of the elastic member 71 .

The elastic member support 75 may be screwed to the outer periphery of the valve body 41 . Accordingly, by simply moving and coupling the elastic member support part 75 along the longitudinal direction of the valve body 41 , the compression of the elastic member 71 positioned between the partition plate 30 and the elastic member support part 75 is reduced. By limiting, it is possible to limit the elevation height of the valve body 41 .

Meanwhile, the other end of the elastic member 71 is supported on the plate surface of the partition plate 30 facing the high-temperature gas generating chamber 20 .

Accordingly, the elastic member 71 is positioned between the partition plate 30 and the elastic member support portion 75, and is compressed or tensioned according to the elevation of the valve body 41 .

With this configuration, as shown in FIG. 8 , the heater 25 is operated in a state in which water is respectively filled in the heating tank 10 and the high-temperature gas generation chamber 20 , and is accommodated in the high-temperature gas generation chamber 20 . heat the water At this time, the valve head 51 is seated on the partition plate 30 by the weight of the valve body 41 and the valve head 51 of the gas injection check valve 40b, and the gas injection check valve 40b is closed. to keep In addition, the high-temperature gas fine injection port 47 of the valve body 41 is also located in the high-temperature gas generating chamber 20 . In addition, the other end of the elastic member 71 maintains a spaced apart state from the partition plate (30).

Subsequently, the water accommodated in the high-temperature gas generating chamber 20 is heated, which is greater than the sum of the weights of the valve body 41 and the valve head 51 , the tensile force of the elastic member 71 and the water pressure in the heating tank 10 . When steam pressure is generated in the high-temperature gas generating chamber 20 , the generated steam flows into the steam flow path 43 of the valve body 41 to raise the valve body 41 .

And, as the valve body 41 rises by steam, the valve head 51 rises while being spaced apart from the partition plate 30, and the elastic member 71 is compressed while the valve body 41 rises, and FIG. As shown in 9, when the elastic member 71 reaches the compression limit, the valve body 41 does not rise any more. At this time, the high-temperature gas fine injection port 47 of the valve body 41 is positioned in the heating tank 10 .

Accordingly, the steam generated in the high-temperature gas generation chamber 20 flows along the steam flow path 43 of the valve body 41 toward the bottom of the heating tank 10 through the high-temperature gas micro-injection port 47 . It is continuously sprayed finely. In addition, by the steam finely injected into the heating tank 10 through the high-temperature gas fine injection port 47 , the water accommodated in the heating bath 10 passes through the high-temperature gas fine injection port 47 through the steam flow path 43 . There is no backflow into the high-temperature gas generating chamber 20 .

Accordingly, the water and food materials accommodated in the heating tank 10 are heated by the steam continuously provided through the gas injection check valve 40b.

On the other hand, when the pressure of the steam in the high-temperature gas generating chamber 20 is lower than the sum of the self-weight of the valve body 41 and the valve head 51, the tensile force of the elastic member 71, and the water pressure in the heating tank 10, , the valve body 41 descends toward the high-temperature gas generating chamber 20 by the self-weight of the valve body 41 and the valve head 51, the tensile force of the elastic member 71, and the water pressure in the heating tank 10, The valve head 51 closes the communication hole 35 , and the hot gas fine injection port 47 of the valve body 41 is located in the hot gas generating chamber 20 .

Accordingly, not only the steam of the high-temperature gas generating chamber 20 is not supplied to the heating bath 10 through the valve body 41 , but also the water contained in the heating bath 10 is generated through the communication hole 35 . There is no backflow into the seal (20).

11 is a view showing another embodiment of the gas injection check valve applied to the heating and cooking apparatus of the present invention, FIG. 12 is a view showing the operating state of the gas injection check valve of FIG. there is.

As shown in these figures, the gas injection check valve according to this embodiment is different from the gas injection check valve in the above-described embodiments, the steam flow of the gas injection check valve 40a according to the first embodiment described above. An auxiliary gas injection check valve 100 is provided in the furnace 43 to be liftable.

The auxiliary gas injection check valve 100 supplies steam, which is a high-temperature gas generated in the high-temperature gas generation chamber 20 , to the heating tank 10 , and simultaneously transfers the liquid in the heating bath 10 to the high-temperature gas generation chamber 20 . prevent backflow.

Accordingly, the gas injection check valve 40a is disposed on the outside, and the auxiliary gas injection check valve 100 has a structure disposed inside the gas injection check valve 40a.

The gas injection check valve 40a and the auxiliary gas injection check valve 100 are arranged concentrically, and the auxiliary gas injection check valve 100 ascends and descends along the steam flow path 43 of the gas injection check valve 40a. .

Here, since the gas injection check valve 40a has the same components as the gas injection check valve shown in the first embodiment described above, a description of its specific function will be omitted.

On the other hand, in the valve head 51 of the gas injection check valve 40a, a withdrawal hole 55 through which the auxiliary gas injection check valve 100 is drawn out is formed.

In addition, on the inner periphery of the valve body 41 of the gas injection check valve (40a) is provided with a stopping protrusion 121 for limiting the rise of the auxiliary gas injection check valve (100). The locking jaw 121 has a shape partially protruding at intervals along the inner periphery of the valve body 41 of the gas injection check valve 40a.

On the other hand, the auxiliary gas injection check valve 100 includes a valve body 101 for an auxiliary check valve, and a valve head 111 for an auxiliary check valve.

The valve body 101 for the auxiliary check valve has a hollow pipe shape, and the valve body 101 for the auxiliary check valve is provided so as to be liftable from the valve body 41 of the gas injection check valve 40a. The valve body 101 for the auxiliary check valve is raised and lowered by the steam pressure generated in the high-temperature gas generation chamber 20 .

The valve body 101 for the auxiliary check valve has an outer diameter smaller than the inner diameter of the valve body 41 so that the steam flowing into the steam flow path 43 of the valve body 41 smoothly flows.

Inside the valve body 101 for the auxiliary check valve, the steam flow path 103 for the auxiliary check valve through which the steam generated in the high-temperature gas generation chamber 20 flows is formed in the longitudinal direction of the valve body 101 for the auxiliary check valve. is formed along

In addition, the auxiliary check valve valve body 101 has a plurality of auxiliary check valve high-temperature gas fine injection ports 107 for discharging the steam flowing along the steam flow path 103 for the auxiliary check valve to the heating tank 10 . is formed. The diameter of the hot gas fine injection port 107 for the auxiliary check valve is 1 mm or less.

The high-temperature gas fine injection port 107 for the auxiliary check valve is formed in a position adjacent to the valve head 111 for the auxiliary check valve. Accordingly, when the auxiliary gas injection check valve 100 is closed, the high-temperature gas fine injection port 107 for the auxiliary check valve is located in the high-temperature gas generation chamber 20), and when the auxiliary gas injection check valve 100 is opened, the auxiliary check The high-temperature gas fine injection port 107 for the valve is located in the heating tank 10 . Here, the plurality of high-temperature gas fine injection holes 107 for the auxiliary check valve may be formed at intervals along the circumference of the valve body 101 for the auxiliary check valve, and the longitudinal direction of the valve body 101 for the auxiliary check valve It may be formed at intervals along the

The valve head 111 for the auxiliary check valve is provided at one end of the valve body 101 for the auxiliary check valve, and according to the elevation of the valve body 101 for the auxiliary check valve, the withdrawal hole 55 of the valve head 51 is formed. open and close The valve head 101 for the auxiliary check valve has a larger diameter than the withdrawal hole 55 . Accordingly, when the valve body 101 for the auxiliary check valve is lowered and the auxiliary gas injection check valve 100 is closed, the valve head 111 for the auxiliary check valve is the valve head 51 of the gas injection check valve 40a. It is mounted on the, it is possible to close the draw-out hole (55).

In addition, on the outer periphery of the valve body 101 for the auxiliary check valve, a stopper 125 for the auxiliary check valve that is caught or released by the hook 121 provided on the inner periphery of the valve body 101 for the auxiliary check valve is provided. .

Here, the stopper 125 for the auxiliary check valve has a shape partially protruding at intervals along the outer periphery of the valve body 41 to correspond to the locking jaw 121 . In addition, when the stopper 125 for the auxiliary check valve is caught in contact with the protrusion 121 , the high temperature gas fine injection port 107 for the auxiliary check valve is positioned at a position in communication with the heating tank 10 , for the auxiliary check valve The stopper 125 is provided on the outer periphery of the valve body 101 for the auxiliary check valve.

Here, the undescribed reference numeral 131 is an auxiliary sealing member mounted on the outer periphery of the valve body 101 for the auxiliary check valve to seal between the valve head 51 and the valve head 111 for the auxiliary check valve. Although the O-ring is shown as the auxiliary sealing member 131 in the present embodiment, the auxiliary sealing member 131 may be provided with various types of sealing members instead of the O-ring.

According to this configuration, according to the pressure of the steam generated from the high-temperature gas generation chamber 20, the steam of the high-temperature gas generation chamber 20 connects the gas injection check valve valve head 51 and the auxiliary gas injection check valve 100. It is selectively or simultaneously supplied to the heating bath (10) through the.

For example, when the steam generated from the high temperature gas generation chamber 20 reaches the first pressure value for raising the auxiliary gas injection check valve 100 , the valve body for the auxiliary check valve of the auxiliary gas injection check valve 100 ( 101) rises along the steam flow path 43 of the gas injection check valve valve head 51, so that a plurality of hot gas fine injection ports 107 for auxiliary check valves are exposed from the valve head 51, and thus the hot gas The steam having the first pressure value generated in the generating chamber 20 passes through the steam flow path 103 for the auxiliary check valve of the valve body 101 for the auxiliary check valve and a plurality of high-temperature gas fine injection ports 107 for the auxiliary check valve. ) through the heating bath (10).

On the other hand, while the valve body 101 for the auxiliary check valve is rising, when the stopper 125 for the auxiliary check valve comes into contact with the clasp 121, as shown in FIG. 12 , the valve body 101 for the auxiliary check valve is no longer raised by the locking jaw 121 . At this time, the high-temperature gas fine injection ports 107 for a plurality of auxiliary check valves of the valve body 101 for auxiliary check valves are exposed to the heating bath 10 and are located.

Next, when the pressure of the steam generated from the high-temperature gas generation chamber 20 reaches a pressure value higher than the first pressure value, for example, a second pressure value for raising the gas injection check valve 40a, the gas injection check valve ( The valve body 41 of 40a) rises, and the valve head 51 rises apart from the partition plate 30 .

Accordingly, the steam having the second pressure generated in the high-temperature gas generating chamber 20 flows along the steam flow path 43 of the valve body 41, and through the high-temperature gas fine injection hole 47, the heating tank 10 ) is continuously finely sprayed toward the bottom.

On the other hand, while the valve body 41 is rising, the elastic member 71 is compressed, and as shown in FIG. 12 , the valve body 41 does not rise any more. At this time, the plurality of high-temperature gas fine injection holes 47 of the valve body 41 are exposed to the heating bath 10 and positioned.

In this way, by providing the auxiliary gas injection check valve 100 in the interior of the gas injection check valve 40a so as to be liftable, the auxiliary gas injection check valve selectively according to the pressure of the steam generated in the high-temperature gas generation chamber 20 Steam may be supplied to the heating bath 10 by opening 100, or steam may be supplied to the heating bath 10 by opening both the auxiliary gas injection check valve 100 and the gas injection check valve 40a, It is possible to prevent a heating dead zone from occurring in the heating tank (10).

As described above, according to the present invention, a gas injection check valve that supplies the steam generated in the hot gas generating chamber to the heating tank and prevents the liquid in the heating tank from flowing back into the hot gas generating chamber to partition the heating tank and the hot gas generating chamber By providing in the communication hole formed in the partition plate, the liquid contained in the heating bath is prevented from flowing into the high-temperature gas generating chamber regardless of whether the heating bath is heated, and it is possible to cook with heating stably.

In particular, the gas injection check valve according to the present invention is a high-temperature gas injection device, and at the same time maintains the pressure of the closed high-temperature gas generating chamber, and also serves as a safety valve. Until the inside of the high-temperature gas generation chamber reaches a specific pressure, the pressure inside the high-temperature gas generation chamber is maintained by any one or more of the check valve's own weight, the elastic force of the elastic member when an elastic member is provided, or the water pressure in the heating tank, When a certain pressure is reached, the check valve is opened and hot gas is sprayed to prevent explosion of the sealed hot gas generating chamber. Accordingly, since the gas injection check valve itself according to the present invention is a safety device, there is no need to provide a separate safety device in the closed high-temperature gas generating chamber.

In addition, when steam is used as the high-temperature gas, the internal pressure of the high-temperature gas generation chamber may be adjusted by adjusting the output of the heater generating steam (using two heaters, using a heater output adjusting device, etc.).

Meanwhile, the heating and cooking apparatus according to the present invention may be operated in a steam spray mode and a boil-off mode.

For example, the steam injection mode refers to a state in which the hot gas generated in the high-temperature gas generating chamber is provided to the heating tank through the gas injection check valve to heat and cook water and food ingredients accommodated in the heating tank.

The boil-off mode refers to a state in which water contained in the heating tank is boiled.

Such a drowsy mode may be implemented by adjusting the heater output. When only one heater among the plurality of heaters is operated or the heater output is lowered by using the heater output control device, the amount of heat generated by the heater increases as the steam generated in the high-temperature gas generating chamber heats the water inside the heating tank by heat conduction. It becomes smaller than the amount of heat lost, and the simmer mode is performed. Therefore, in a state in which the high-temperature gas is not sprayed from the check valve, when the steam in the high-temperature gas generating chamber heats the bottom surface of the heating tank, the heated bottom surface heats the water inside the heating tank in a heat conduction manner, thereby causing it to boil.

On the other hand, even if the heater output is lowered, if steam continues to be generated inside the high-temperature gas generation chamber, the pressure inside the high-temperature gas generation chamber rises. When the internal pressure of the high-temperature gas generating chamber rises above, electricity supply to the heater is cut off to perform the boil-off mode. In this case, the set pressure of the pressure sensor should be less than the pressure at which the gas injection check valve is opened, and when the elastic member is provided, it should be less than the tensile force of the elastic member of the gas injection check valve.

Accordingly, the heating cooking apparatus according to the present invention may be operated in the steam spray mode and the boil-off mode.

In addition, the heating cooking apparatus according to the present invention may further include a pressing device for maintaining the pressure in the heating tank above atmospheric pressure, and a fastening device capable of fastening the pressing device to the heating cooking device.

In the above, embodiments of the present invention have been described with reference to the accompanying drawings, but those skilled in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing the technical spirit or essential features thereof. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: heating cooking device
10: heating bath
20: hot gas generation chamber
25: heater
30: partition plate
35: plumb hole
40a, 40b: gas injection check valve
41: valve body
43: steam flow furnace
47: hot gas fine nozzle
51: valve head
61: guide
65: stopper
71: elastic member
75: elastic member support part
91: sealing member
100: auxiliary gas injection check valve

Claims (27)

one or more heating baths containing a heating object and a liquid;
a high-temperature gas generation chamber configured to generate a high-temperature gas to heat the liquid accommodated in the heating tank and the heating object;
a partition plate forming at least one communication hole communicating the heating tank and the high-temperature gas generating chamber, and partitioning the heating bath and the high-temperature gas generating chamber; and
one or more gas injection check valves provided in the communication hole to supply the hot gas generated in the hot gas generating chamber to the heating tank and at the same time prevent the liquid in the heating tank from flowing back into the hot gas generating chamber; cooking device. According to claim 1,
Further comprising a stopper provided on the gas injection check valve,
The stopper restricts the rise of the gas injection check valve and prevents it from being separated. According to claim 1,
The gas injection check valve,
a valve body provided to be elevated in the communication hole, the valve body rising by the high-temperature gas pressure generated in the high-temperature gas generating chamber; and
and a valve head provided in the valve body to open and close the communication hole according to the elevation of the valve body. 4. The method of claim 3,
The valve body is
a high-temperature gas flow path through which the high-temperature gas generated in the high-temperature gas generation chamber flows from the high-temperature gas generation chamber toward the heating bath; and
and one or more hot gas fine injection ports for injecting the hot gas flowing along the hot gas flow path to the heating bath. 5. The method of claim 4,
The hot gas fine jet openings are provided in plurality, and the plurality of hot gas fine jet openings are formed at intervals along an elevation direction of the valve body. 5. The method of claim 4,
When the pressure of the hot gas generating chamber is maintained higher than the pressure of the heating tank by the pressure of the hot gas generated in the hot gas generating chamber, the hot gas flowing through the hot gas flow path of the valve body is transferred to the hot gas generating chamber. Flowing only in the direction of the heating bath, heating cooking device. 5. The method of claim 4,
One or more auxiliary gas injection check valves provided in the valve body to be lifted and provided to supply the high-temperature gas generated in the high-temperature gas generation chamber to the heating tank and at the same time prevent the liquid in the heating bath from flowing back into the high-temperature gas generation chamber; Further comprising, a heating cooking device. 8. The method of claim 7,
A draw-out hole is formed through the valve head of the gas injection check valve,
The auxiliary gas injection check valve,
a valve body for an auxiliary check valve that penetrates through the withdrawal hole and is provided to be liftable on the valve body and rises by the high-temperature gas pressure generated in the high-temperature gas generating chamber;
a valve head for an auxiliary check valve provided on the valve body for the auxiliary check valve;
a high-temperature gas flow path for an auxiliary check valve formed in the valve body for the auxiliary check valve and through which the high-temperature gas flows;
One or more auxiliary check valves for hot gas fine injection holes for injecting hot gas flowing along the hot gas flow path for the auxiliary check valves; and
A gas injection check valve comprising a stopper for the auxiliary check valve provided on the valve body for the auxiliary check valve and the valve body of the gas injection check valve to limit the elevation of the valve body for the auxiliary check valve and prevent the auxiliary check valve from departing. 9. The method of claim 8,
The gas injection check valve and the auxiliary gas injection check valve selectively increase according to the pressure of the high-temperature gas generated in the high-temperature gas generating chamber, and supply the high-temperature gas to the heating tank. 10. The method according to any one of claims 3 to 9,
an elastic member provided in the valve body located in the high-temperature gas generating chamber and compressed or stretched according to the elevation of the valve body; and
The heating and cooking apparatus further comprising an elastic member support portion that supports one end of the elastic member and is provided on the valve body to limit compression of the elastic member. 11. The method of claim 10,
When the elastic member is compressed by the pressure of the high-temperature gas generated in the high-temperature gas generating chamber, the high-temperature gas fine injection port is located in the heating tank, and when the elastic member is tensioned, the high-temperature gas fine injection port is located in the high-temperature gas generation chamber which is a heating and cooking device. 11. The method of claim 10,
The valve body rises by the hot gas pressure generated in the hot gas generating chamber, and descends by one or more of the water pressure in the heating tank, gravity acting on the hot gas check valve, and the elastic force of the elastic member, heating cooker. 7. The method according to any one of claims 3 to 6,
wherein the valve body rises by the hot gas pressure generated in the hot gas generating chamber and descends by at least one of a water pressure in the heating tank and gravity acting on the hot gas check valve. 7. The method according to any one of claims 3 to 6,
When the valve body rises, the communication hole is opened, and the hot gas fine injection port is located in the heating bath. When the valve body descends, the valve head closes the communication hole, and the hot gas fine injection port is located in the hot gas generating chamber. which is a heating cooker. 10. The method according to any one of claims 3 to 9,
The heating and cooking apparatus is provided on the partition plate, further comprising a guide for guiding the elevation of the valve body. According to claim 1,
at least one heater configured to generate steam by heating the water contained in the high-temperature gas generating chamber;
a sensor for measuring pressure or temperature inside the high-temperature gas generating chamber; and
A heater output control device for controlling the opening of the gas injection check valve by adjusting the output of the at least one heater, wherein the heater output control device is automatically controlled based on pressure data or temperature data measured by the sensor or a user Heating cooking apparatus further comprising a heater output control device that is manually controlled according to the operation of. 17. The method of claim 16,
The heater output adjusting device is configured to adjust the output of the heater so that the steam generated inside the high-temperature gas generating chamber is equal to or less than the number of calories lost per hour due to heat conduction. According to claim 1,
The heating tank and the high-temperature gas generating chamber are integrally formed. a valve body lifted by hot gas pressure;
a valve head provided on the valve body; and
A gas injection check valve provided on the valve body, including a stopper that restricts the elevation of the valve body and prevents the valve body from departing. 20. The method of claim 19,
a high-temperature gas flow path formed in the valve body and through which the high-temperature gas flows; and
The gas injection check valve further comprising one or more hot gas fine injection ports for injecting the hot gas flowing along the hot gas flow path. 21. The method of claim 20,
One or more auxiliary gas injection check valves provided in the valve body to be lifted and provided to supply the high-temperature gas generated in the high-temperature gas generation chamber to the heating tank and at the same time prevent the liquid in the heating bath from flowing back into the high-temperature gas generation chamber; Further comprising, a gas injection check valve. 22. The method of claim 21,
A draw-out hole is formed through the valve head of the gas injection check valve,
The auxiliary gas injection check valve,
A valve body for an auxiliary check valve that rises and lowers by hot gas pressure;
a valve head for an auxiliary check valve provided on the valve body for the auxiliary check valve;
a high-temperature gas flow path for an auxiliary check valve formed in the valve body for the auxiliary check valve and through which the high-temperature gas flows;
One or more auxiliary check valves for hot gas fine injection holes for injecting hot gas flowing along the hot gas flow path for the auxiliary check valves; and
A gas injection check valve comprising a stopper for the auxiliary check valve provided on the valve body for the auxiliary check valve and the valve body of the gas injection check valve to limit the elevation of the valve body for the auxiliary check valve and prevent the auxiliary check valve from departing. 23. The method according to any one of claims 19 to 22,
Gas injection check valve further comprising a guide for guiding the elevation of the valve body. 23. The method according to any one of claims 19 to 22,
Gas injection check valve, further comprising an elastic member for compression or tension according to the elevation of the valve body. According to claim 1,
One or more gas injection check valves are provided,
a pressurizing device for maintaining the pressure in the one or more heating baths above atmospheric pressure; and
The heating cooking apparatus further comprising a fastening device for fastening the pressurizing device to the heating cooking apparatus. According to claim 1,
The gas injection check valve and the communication hole are provided in plurality,
A plurality of the communication holes are formed through the partition plate in different distributions to form an energy high-density region in which a large amount of high-temperature gas is supplied to the heating bath and a low-energy region in which a relatively small amount of high-temperature gas is supplied to the heating bath, heating cooking device. 11. The method of claim 10,
The heating and cooking apparatus is provided on the partition plate, further comprising a guide for guiding the elevation of the valve body.

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