KR102328716B1 - Heating cooker - Google Patents

Abstract

The present invention relates to a steam generating device, comprising: a heating tank accommodating a heating object and a liquid; a steam generating chamber configured to generate steam by heating water to heat the liquid accommodated in the heating tank and the heating object; and a steam injection unit having one or more fine steam injection ports configured to finely divide the steam generated in the steam generation chamber and spray the steam into the heating tank, wherein the steam generation chamber includes: a heating unit generating steam by heating water; a preheating unit preheating the water supplemented and supplied to the heating unit by absorbing the heat transferred from the heating unit; and an insulator for insulating the heating unit and the preheating unit.

Description

Real-time steam generator with compartmentalized steam generator {HEATING COOKER}

The present invention relates to a steam generator, and more particularly, to a steam generator capable of heating and cooking an object to be heated by supplying steam generated by heating water with a heater to a heating object and a liquid accommodated in a heating tank. .

In the related art, a steam generating chamber for generating steam is provided at a lower portion, a heating tank accommodating a heating object and a liquid is disposed in the upper portion of the steam generating chamber, and then water is heated with a heater in the steam generating chamber to heat the generated steam. DESCRIPTION OF RELATED ART A heating cooking apparatus which heat-cooks the heating object accommodated in the heating tank by supplying it to a tank is known.

When water is heated with a heater, the water around the heater heats up quickly, while the water farther from the heater heats up slowly. Therefore, it is ideal to accommodate only as much water as the heater height in the steam generating chamber. That is, it is ideal to generate steam by operating the heater after accommodating only enough water for the uppermost part of the heater to be submerged. When the heater is exposed to air, it is oxidized and cracks occur on the surface of the heater, and there is a problem in that the life of the heater is reduced.

Therefore, water must be replenished before the heater is exposed to the air. If the steam generating chamber contains only enough water to submerge only the top of the heater, water must be continuously supplied at short intervals. In order to replenish water, it is necessary to open a sealed steam generating chamber. When the steam chamber is opened, there is a problem in that steam is discharged to the outside and heat loss occurs.

In order to prevent this, when a large amount of water is put into the steam generating chamber and heated, there is a problem in that the temperature around the heater and the place far from the heater rise at different rates. The water near the heater is already boiling, but the temperature of the water far from the heater has not yet reached the boiling point, slowing the steam generation rate.

In addition, when steam is continuously generated in the steam generating chamber, water in the steam generating chamber is evaporated due to steam generation, and thus water must be supplemented. At this time, if cold water or room temperature water is supplied, it takes a long time to raise the temperature of the water inside the steam generating chamber to 100°C again.

In addition, since the steam generating chamber for generating steam by heating water with the electric heater is not insulated, there is a problem in that heat loss due to radiant heat occurs in the process of heating water with the electric heater.

On the other hand, when the steam generated in the steam generating chamber is supplied to the inside of the heating tank through the micro-holes formed on the bottom surface of the heating tank, steam is generated to maintain the pressure inside the steam generating chamber even when cooking is not being performed in the heating tank. Steam has to be generated in the chamber, but there is a problem in that the generated steam cannot be used to heat water and a heating object in the heating tank and is lost.

Domestic Registered Patent Publication No. 10-1300059

The present invention is to solve the above problems, by minimizing the preheating time required for phase change from liquid water to gaseous steam when generating steam by heating water with a heater, reducing heat loss due to radiant heat, and steam It is an object of the present invention to provide a steam generator capable of reducing energy loss when supplying supplementary water to a production chamber.

Another object of the present invention is to provide a steam generating device that prevents a heater from being exposed to air in a steam generating chamber to prevent cracks from occurring on the heater surface and improve heater durability.

An object of the present invention, a heating bath for accommodating a heating object and a liquid; a steam generating chamber configured to generate steam by heating water to heat the liquid accommodated in the heating tank and the heating object; and a steam injection unit having one or more fine steam injection ports configured to finely divide the steam generated in the steam generation chamber and spray the steam into the heating tank, wherein the steam generation chamber includes: a heating unit generating steam by heating water; a preheating unit preheating the water supplemented and supplied to the heating unit by absorbing the heat transferred from the heating unit; And it may be achieved by a heating and cooking apparatus comprising a heat insulating portion for insulating the heating portion and the preheating portion.

Here, the preheating unit may include: a preheating tank for storing water; a water outlet for a preheating unit through which water stored in the preheating tank is injected into the heating unit; a check valve for the preheating unit preventing a reverse flow of water flowing from the preheating tank to the heating unit and opening and closing the water outlet for the preheating unit; and a pressure intensifying device for the preheating unit that pressurizes the water contained in the preheating tank at a pressure higher than that of the heating unit and flows it through the check valve for the preheating unit to the heating unit.

In addition, the pressure-increasing device for the pre-heating unit may include: a pressure-increasing unit for the pre-heating unit for discharging a high-pressure fluid; a flow pipe for the preheating unit for guiding the fluid discharged by the pressure increasing means for the preheating unit to flow into the preheating tank; an inlet for the preheater formed in the preheater to communicate with the flow tube for the preheater and through which the fluid flowing along the flow tube for the preheater flows into the preheater; and an opening/closing valve for the preheating unit that opens and closes the inlet for the preheater according to the pressure of the fluid flowing into the preheating tank.

The heat insulating unit may include: a heat insulating tank for storing water; a water outlet for the heat insulating unit through which the water stored in the heat insulating tank flows to the preheating unit; a check valve for an insulator for preventing a reverse flow of water flowing from the heat insulator to the preheating unit and opening and closing the water outlet for the heat insulator; and a pressure-increasing device for the heat insulating unit that pressurizes the water contained in the heat insulating tank at a pressure higher than that of the preheat unit and flows it through the check valve for the heat insulating unit to the preheat unit.

The pressure-increasing device for the heat-insulating section includes: a pressure-increasing means for the heat-insulating section for discharging a high-pressure fluid; a flow pipe for the heat insulating section for guiding the fluid discharged by the pressure increasing means for the heat insulating section to flow into the heat insulating tank; an inlet for the heat insulating section formed in the heat insulating tank to communicate with the flow pipe for the heat insulating section and through which the fluid flowing along the flow pipe for the heat insulating section flows into the heat insulating section; and an opening/closing valve for the heat insulating part that opens and closes the inlet for the heat insulating part according to the pressure of the fluid flowing into the heat insulating tank.

a steam flow pipe for guiding the steam generated by the heating unit to be introduced into the preheating unit; a steam inlet formed in the preheating part to communicate with the steam flow pipe, and through which steam flowing along the steam flow pipe flows into the preheating part; and a check valve for inflow of steam provided in the steam flow pipe or the steam inlet to prevent a reverse flow of steam flowing to the preheating unit along the steam flow pipe and to open and close the steam flow pipe or the steam inlet.

and a steam passage provided in the heating unit to form a flow path of steam flowing to the heating tank, and the steam flow tube may be branched from the steam passage.

It may further include a steam control valve provided in the steam passage to control the amount of steam flowing into the heating tank.

In addition, an object of the present invention, a heating bath for accommodating a heating object and a liquid; a steam generating chamber configured to generate steam by heating water to heat the liquid accommodated in the heating tank and the heating object; and a steam injection unit having one or more fine steam injection ports configured to finely divide the steam generated in the steam generation chamber and spray the steam into the heating tank, wherein the steam generation chamber includes: a heating unit generating steam by heating water; And it can also be achieved by a heating and cooking device, including a heat insulating portion for insulating the heating portion.

The heat insulating unit may include: a heat insulating tank for storing water; a water discharge port for the heat insulating part through which the water stored in the heat insulating tank flows to the heating part; a check valve for a heat insulator to prevent a reverse flow of water flowing from the heat insulator to the heating and to open and close the water outlet for the heat insulator; and a pressure-increasing device for the heat insulating unit that pressurizes the water contained in the heat insulating tank at a pressure higher than that of the heating unit and flows to the heating unit through the check valve for the heat insulating unit.

The pressure-increasing device for the heat-insulating section includes: a pressure-increasing means for the heat-insulating section for discharging a high-pressure fluid; a flow pipe for the heat insulating section for guiding the fluid discharged by the pressure increasing means for the heat insulating section to flow into the heat insulating tank; an inlet for the heat insulator that is formed in communication with the flow pipe for the heat insulator to communicate with the flow pipe for the heat insulator, and through which a fluid flowing along the flow pipe for the heat insulator flows into the heat insulator; and an opening/closing valve for the heat insulating part that opens and closes the inlet for the heat insulating part according to the pressure of the fluid flowing into the heat insulating tank.

It may further include a water level sensor for the heating unit provided in the heating unit to detect the water level in the heating unit.

It may further include a water level sensor for the heat insulator provided in the heat insulator to detect the water level in the heat insulator.

It may further include a water level sensor for the preheating unit provided in the preheating unit to detect the water level in the preheating unit.

It may further include a preheating water supply unit for supplying the preheating water preheated by the preheating unit or the heat insulating unit to the heating unit.

The preheating water supply unit may include: a preheating water pipe communicating with the preheating unit or the heat insulating unit and the heating unit and through which the preheating water flows; and a buoyancy rod that lifts and lowers by buoyancy and opens and closes a discharge port of the preheating water pipe through which the preheating water is discharged to the heating unit.

The buoyancy rod may be raised and lowered according to a change in the water level of the heating unit to supply preheating water to the heating unit in real time.

According to the present invention, when generating steam by heating water with a heater, it is possible to minimize the preheating time required for the phase change from liquid water to gaseous steam by adding only enough water so that the heater is not exposed to air.

In addition, by preventing the steam generating chamber generating steam from coming into direct contact with external air, heat loss due to radiant heat can be prevented, and burns of the user can be prevented.

In addition, when water is evaporated in the steam generating chamber and water replenishment is required, preheated water may be supplied to minimize the time it takes for the water supplied to the steam generating chamber to reach a boiling point and phase change into steam.

In addition, when water is replenished into the steam generating chamber, the steam generated in the heating unit of the steam generating chamber may be prevented from being lost. In addition, when cooking is not performed in the heating tank, the steam generated by the heating unit may be supplied to the water to be supplemented to the heating unit, so that the amount of steam supplied to the heating bath may be adjusted.

In addition, an amount of water corresponding to the evaporation amount of water in the steam generating chamber may be supplied in real time.

In addition, even if water falls below a certain level due to steam generation in the steam generating chamber, exposure of the heater to air is prevented, thereby preventing cracks on the surface of the heater and extending the lifespan.

1 is a block diagram of a steam generating device according to a first embodiment of the present invention;
2 is a configuration diagram of a steam generating device according to a second embodiment of the present invention;
3 is a block diagram of a steam generating device according to a third embodiment of the present invention;
4 is a block diagram of a steam generating device according to a fourth embodiment of the present invention;
5 is a block diagram of a steam generating device according to a fifth embodiment of the present invention;
6 is a block diagram of a steam generating device according to a sixth embodiment of the present invention;
7 is a configuration diagram of a steam generating device according to a seventh embodiment of the present invention;
8 is a block diagram of a steam generating apparatus according to an eighth embodiment of the present invention.

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 these 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 understand the scope of the present invention to those skilled in the art.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, 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, components having the same configuration will be typically described in the first embodiment using the same reference numerals, and in other embodiments, configurations different from those of the first embodiment will be described. do.

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

1 shows a steam generating apparatus according to a first embodiment of the present invention.

As shown in the drawing, the steam generating device 1a according to the first embodiment of the present invention includes a heating tank 10 , a steam generating chamber 20 , and a steam spraying unit 110 .

The heating bath 10 has a hollow cylindrical shape with one side open.

A cavity 11 is formed in the heating bath 10 .

The cavity 11 is a region in which a heating object is cooked, and accommodates the heating object and water as a liquid.

The steam generating chamber 20 is an area for generating steam for heating the heating object and water accommodated in the cavity 11 of the heating tank 10 .

The steam generating chamber 20 has a cylindrical shape with an open top, and is stacked under the heating tank 10 .

Meanwhile, the steam generating chamber 20 includes a heating unit 21 , a preheating unit 31 , and an insulating unit 61 .

The heating unit 21 , the preheating unit 31 , and the heat insulating unit 61 are each independently partitioned.

The heating unit 21 generates steam by heating water. The heating unit 21 is provided with a heater 23 for heating the water contained in the heating unit 21 to generate steam and at the same time to generate hot water.

Hot water is stored in the lower portion of the heating unit 21, and steam is stored in the upper portion. The steam generated by the heating unit 21 is supplied to the cavity 11 of the heating bath 10 through the steam injection unit 110 .

As steam is generated by heating water from the heating unit 21 to the heater 23 , the internal pressure of the heating unit 21 is higher than the pressure (atmospheric pressure) of the cavity 11 of the heating tank 10 , heating The steam generated in the unit 21 may be supplied to the cavity 11 of the heating tank 10 through the steam spray unit 110 . In addition, as steam is generated in the heating unit 21 , the pressure inside the heating unit 21 is higher than the internal pressure of the preheating unit 31 and the heat insulating unit 61 , respectively.

The internal pressure of the heating unit 21 in which steam is generated is at least atmospheric pressure, and the internal temperature is at least 100°C. For example, if the absolute pressure inside the heating unit is 1.5 atmospheres, the boiling point inside the heating unit 21 is about 110°C. Accordingly, a phase change occurs in which water in the heating unit 21 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 do not phase change into steam, which is gas, and maintain the state of liquid water. The state in which the original phase is maintained even when heated above the temperature at which the phase change occurs is called superheating. Therefore, the hot water generated by the heating unit 21 may include superheated water.

In addition, the heating unit 21 is provided with water level sensors 25 and 27 for the heating unit for detecting the water level of the heating unit 21 .

The water level sensor for the heating unit includes the lowest water level sensor 25 for the heating unit that detects the lowest water level of the heating unit 21 and the highest water level sensor 27 for the heating unit that detects the highest water level of the heating unit 21 .

When the lowest water level of the heating unit 21 is sensed from the lowest water level sensor 25 for the heating unit, the preheating unit 31 operates the preheating unit 31 by operating the preheating unit pressure intensifier 41 or the heat insulating unit 71 to be described later. Alternatively, the water stored in the heat insulating unit 61 is supplied to the heating unit 21, and when the highest water level in the heating unit 21 is detected from the highest water level sensor 27 for the heating unit, the pressure intensifier 41 for the preheating unit or for the insulating unit By stopping the operation of the pressure intensifier 71 , water preheated by the preheating unit 31 or water stored in the heat insulating unit 61 is not supplied to the heating unit 21 .

Here, when the pressure intensifier 41 for the preheating unit or the pressure intensifier 71 for the insulator does not operate, the pressure is high in the order of the heating unit 21, the preheating unit 31, and the insulating unit 61, and the pressure intensifier for the preheating unit is not operated. When (41) or the pressure intensifying device 71 for the insulator is operated, the relative pressure intensity of each region may change accordingly.

Due to the operation of the pressure intensifier for the preheating unit 41 , the situation in which the heating unit 21 maintains a relatively high pressure compared to the preheating unit 31 is changed, and the preheating unit 31 temporarily closes the heating unit 21 . to maintain a relatively high pressure. In addition, due to the operation of the pressure boosting device 71 for the heat insulator, the situation in which the preheating unit 31 maintains a relatively high pressure compared to the heat insulator 61 is changed, and the heat insulator 61 temporarily closes the preheating unit 31 ) to maintain a relatively high pressure.

Accordingly, it is possible to supply water in an amount corresponding to the evaporation amount of water in the steam generating chamber 20 . In addition, even if water falls below a certain water level due to steam generation in the steam generating chamber 20 , the heater 23 is prevented from being exposed to air to prevent cracks on the surface of the heater 23 and the life of the heater 23 . can be extended.

Here, in this embodiment, although it is illustrated that the heating bath 10 and the steam generation chamber 20 are integrally formed, the present invention is not limited thereto, and the heating bath 10 and the steam generation chamber 20 may be provided in a detachable manner. can

The preheating unit 31 absorbs heat transferred from the heating unit 21 and preheats the water supplementedly supplied to the heating unit 21 .

The preheating unit 31 includes a preheating tank 33 for storing water, a water outlet 35 for the preheating unit through which water stored in the preheating tank 33 flows to the heating unit 21 , and heating from the preheating tank 33 . The check valve 37 for the preheating unit prevents the reverse flow of water flowing into the unit 21 and opens and closes the water outlet 35 for the preheat unit, and the water contained in the preheating tank 33 is pressurized at a pressure higher than that of the heating unit 21 . and a pressure intensifying device 41 for the preheating unit to flow to the heating unit 21 through the check valve 37 for the preheating unit. The water outlet 35 for the preheating unit is formed adjacent to the bottom surface of the preheating unit.

The preheating tank 33 is disposed along the periphery of the heating unit 21 to form a steam passage 91 to be described later, which is a flow path of steam flowing into the heating bath 10 , and at the same time, an upper region of the heating unit 21 . placed across the

The check valve 37 for the preheating unit is opened only when the pressure of the preheating unit 31 is greater than the pressure of the heating unit 21 , and guides the water of the preheating unit 31 to flow into the heating unit 21 . Conversely, the check valve 37 for the preheating unit is closed when the pressure of the preheating unit 31 is lower than the pressure of the heating unit 21 , thereby preventing the water of the heating unit 21 from flowing back into the preheating unit 31 . .

The preheating unit pressure boosting device 41 includes a preheating unit pressure boosting unit 43 for discharging high-pressure fluid, and a preheating unit guiding the fluid discharged by the preheating unit pressure increasing unit 43 to flow into the preheating unit 33 . The flow pipe 45 and the preheating part inlet 47 formed in the preheating tank 33 to communicate with the preheating part flow pipe 45 and flowing along the preheating part flow pipe 45 flows into the preheating tank 33; , and an opening/closing valve 49 for the preheating unit that opens and closes the inlet 47 for the preheater according to the pressure of the fluid flowing into the preheating tank 33 .

The pressure boosting means 43 for the preheating unit may include a pump or a compressor. The pressure boosting means 43 for the preheating unit discharges the fluid at a pressure higher than that of the heating unit 21 .

The opening/closing valve 49 for the preheating unit is opened only when the fluid with a higher pressure than that of the heating unit 21 and the preheating unit 31 flows to the inlet 47 for the preheating unit through the flow pipe 45 for the preheating unit. Closes the inlet 47 for the preheating unit.

Accordingly, as the pressure boosting means 43 for the preheating unit discharges the fluid at a pressure higher than that of the heating unit 21 to open the on/off valve 49 for the preheating unit, the fluid flowing through the flow pipe 45 for the preheating unit is used for the preheating unit. It flows into the preheating tank 33 through the inlet 47 , and the preheating unit 31 is in a relatively high pressure state than the heating unit 21 , and the check valve 37 for the preheating unit is opened to enter the preheating tank 33 . The received water flows to the heating unit 21 . That is, the pressure inside the heating unit 21 where steam is generated is relatively higher than the pressure inside the preheating unit 31 , but due to the operation of the pressure boosting means 43 for the preheating unit, the internal pressure of the preheating unit 31 . This heating part 21 is temporarily higher than the internal pressure.

In addition, the preheating unit 31 is provided with water level sensors 51 and 53 for the preheating unit for detecting the water level in the preheating tank 33 .

The water level sensor for the preheating unit includes the lowest water level sensor 51 for the preheating unit that detects the lowest water level in the preheating tank 33 and the highest water level sensor 53 for the preheating unit that detects the highest water level in the preheating unit 33 . do.

When the lowest water level of the preheating unit 31 is detected from the lowest water level sensor 51 for the preheating unit, a pressure intensifying device 71 for the insulating unit, which will be described later, is operated to supply the water stored in the insulating unit 61 to the preheating unit 31, and , When the highest water level of the preheating unit 21 is detected from the highest water level sensor 53 for the preheating unit, the pressure intensifying device 71 for the insulating unit is stopped to supply the water stored in the insulating unit 61 to the preheating unit 21. does not

In this way, by providing the preheating unit 31 , preheated water is supplied when water evaporates in the steam generating chamber 20 , and the water supplied to the steam generating chamber 20 reaches 100° C. and then phase change into steam. You can minimize the time it takes to complete.

The heat insulating unit 61 insulates the heating unit 21 and the preheating unit 31 .

The heat insulating unit 61 includes a heat insulating tank 63 for storing water, a water outlet 65 for a heat insulating section through which the stored water flows to the preheating unit 31 , and a preheating unit 31 from the heat insulating tank 63 . The check valve 67 for the heat insulating part prevents the backflow of flowing water and opens and closes the water outlet 65 for the heat insulation part, and the check valve 67 for the heat insulation part by pressurizing the water contained in the heat insulation tank 63 at a pressure higher than that of the preheating part. and a pressure-increasing device 71 for the heat insulating section that flows through the preheating section. The water discharge port 65 for the heat insulating part is formed adjacent to the bottom surface of the preheating part.

The heat insulating tank 63 is provided along the circumference of the preheating tank 33 . The heat insulating tank 63 absorbs and stores heat transferred from the heating unit 21 and the preheating unit 31 in order to block the heat emitted to the outside.

The check valve 67 for the heat insulating part is opened only when the pressure of the heat insulating part 61 is greater than the pressure of the preheating part 31 , and guides the water of the heat insulating part 61 to flow to the preheating part 31 . Conversely, the check valve 67 for the heat insulating part is closed when the pressure of the heat insulating part 61 is less than the pressure of the preheating part 31 , thereby preventing the water from the preheating part 31 from flowing back into the insulating part 61 . .

The pressure-increasing device 71 for the heat-insulating section includes a pressure-increasing means 73 for the heat-insulating section that discharges a high-pressure fluid, and a heat-insulating section for guiding the fluid discharged by the pressure-increasing means 73 for the heat-insulating section to flow into the heat-insulating tank 63 . The flow pipe 75 and the inlet 77 for the heat insulating section through which the fluid flowing along the flow pipe 75 for the heat insulating section flows along the flow pipe 75 for the heat insulating section flows into the heat insulating section 63 so as to communicate with the flow pipe 75 for the heat insulating section. , and an opening/closing valve 79 for the thermal insulation unit that opens and closes the inlet 77 for the thermal insulation unit according to the pressure of the fluid flowing into the thermal insulation tank 63 .

In this embodiment, although it is illustrated that the pressure-increasing means 73 for the heat insulating part and the pressure-increasing means 43 for the preheating part are separately provided, the present invention is not limited thereto, and the pressure-increasing means 73 for the heat insulating part and the pressure-increasing means for the preheating part ( 43) may be used jointly.

The pressure-increasing means 73 for the insulating part may include a pump or a compressor. The pressure-increasing means 73 for the insulator may discharge the fluid at a pressure higher than that of the heating unit 21 and the preheating unit 31 .

The on/off valve 79 for the heat insulating part is opened only when the fluid with a pressure higher than that of the preheating part 31 flows to the inlet 77 for the heat insulating part through the flow pipe 75 for the heat insulating part, and in other situations, the inlet 77 for the heat insulating part ) is closed.

Accordingly, as the pressure-increasing means 73 for the heat insulating part discharges the fluid at a higher pressure than the preheating part 31 to open the on/off valve 79 for the heat insulating part, the fluid flowing through the flow pipe 75 for the heat insulating part is for the heat insulating part It flows into the heat insulating tank 63 through the inlet 77, and the heat insulating part 61 is in a relatively high pressure state than that of the preheating part 31. Accordingly, the check valve 67 for the heat insulating part and the check valve 37 for the preheating part are connected to each other. It is opened, and the water accommodated in the heat insulating tank 63 flows to the preheating tank 33 . That is, the internal pressure of the preheating unit 31 through which steam is introduced into the steam inlet 103, which will be described later, is relatively higher than the pressure inside the insulating unit 61, but due to the operation of the pressure boosting means 73 for the insulating unit, the The internal pressure of the heat insulating part 61 is temporarily higher than the internal pressure of the preheating part 31 .

In addition, the heat insulating unit 61 is provided with water level sensors 81 and 83 for the heat insulating unit for detecting the water level in the heat insulating tank 63 .

The water level sensor for the heat insulating section includes the lowest water level sensor 81 for the heat insulating section that detects the lowest water level in the heat insulation tank 63 and the highest water level sensor 83 for the heat insulation section that detects the highest water level in the heat insulation tank 63 . do.

When the lowest water level in the heat insulating tank 63 is detected from the lowest water level sensor 81 for the insulator, water is replenished to the heat insulating tank 63 through a separate water supply device (not shown), and the highest water level sensor for the heat insulator. When the highest water level in the heat insulating tank 63 is sensed from the 83 , the water supply to the heat insulating tank 63 is stopped.

In this way, by providing the heat insulating part 61, the heating part 21, which generates steam by heating water with the heater 23, prevents direct contact with external air to prevent heat loss due to radiant heat, and You can prevent burns.

Meanwhile, the steam generating device 1a according to the first embodiment of the present invention includes a steam passage 91 that is provided in the heating unit 21 and forms a flow path of steam flowing into the heating tank 10 .

A steam control valve 93 for controlling the amount of steam flowing into the heating tank 10 may be provided in the steam passage 91 .

In addition, the steam generating device 1a according to the first embodiment of the present invention includes a steam flow pipe 101 guiding the steam generated by the heating unit 21 to be introduced into the preheating unit 31 . The steam flow pipe 101 is branched from the steam passage 91 and guides the steam flowing through the steam passage 91 to flow to the preheating unit 31 .

In addition, a steam inlet 103 communicating with the steam flow pipe 101 is formed in the preheating unit 31 . The steam inlet 103 is formed adjacent to the bottom surface of the preheating unit 31 to introduce steam flowing along the steam flow 101 into the preheating tank 33 of the preheating unit 31 . Steam is introduced into the steam inlet 103 so that the internal pressure of the preheating unit 31 is higher than the internal pressure of the insulating unit 61 .

In addition, the steam inlet 103 is provided with a check valve 105 for steam inlet. The check valve 105 for steam inflow prevents a reverse flow of steam flowing to the preheater 31 along the steam flow pipe 101 and opens and closes the steam inlet 103 .

The check valve 105 for steam inflow is opened when steam is supplied to the preheating unit 31 through the steam flow pipe 101 , and is closed when the preheating unit 31 is pressurized to supply water to the heating unit 21 . .

Here, the check valve 105 for steam inlet is provided in the steam flow pipe 101 instead of the steam inlet 103 as another embodiment, and prevents the water of the preheating unit 31 from flowing backward along the steam flow pipe 101, The steam flow pipe 101 may be opened and closed.

Accordingly, since steam flows into the preheating unit 31 along the steam flow pipe 101 , the water stored in the preheating unit 31 is preheated by the steam. By supplying the steam generated by the heating unit 21 to the water stored in the preheating unit 31 , the loss of steam is minimized, and the amount of steam supplied to the heating tank 10 can be adjusted.

The steam spraying unit 110 is provided between the heating tank 10 and the steam generating chamber 20 , finely dividing the steam generated in the steam generating chamber 20 and spraying it to the heating tank 10 .

A plurality of steam fine injection holes 111 are formed in the steam injection unit 110 , and the plurality of steam fine injection holes 111 are formed through the bottom surface of the heating bath 10 facing the steam generating chamber 20 . .

Here, in the present embodiment, although it is illustrated that a plurality of steam fine injection holes 111 are formed, the present invention is not limited thereto, and only one steam fine injection hole 111 may be formed.

The plurality of steam fine injection holes 111 finely divide the steam generated in the steam generating chamber 20 and spray it into the heating tank 10 . The plurality of steam fine injection holes 111 may have a diameter of about 1 mm.

The steam injected into the cavity 11 of the heating tank 10 through the plurality of steam fine injection holes 111 heats the water accommodated in the cavity 11 with heat of liquefaction (539 cal/g) of the steam.

On the other hand, as steam is finely divided by the plurality of steam fine injection ports 111 and injected into the heating bath 10 , a pressure difference occurs between the steam generating chamber 20 and the heating bath 10 .

Accordingly, the plurality of steam fine injection holes 111 finely divide the steam generated by the heating unit 21 and then introduce it into the heating tank 10, adjust the pressure of the heating unit 21, and the heating unit ( The pressure of 21 ) is maintained higher than the pressure of the cavity 11 of the heating bath 10 . In addition, the sum of the areas of the plurality of fine steam injection holes 111 is formed such that the steam pressure of the steam generating chamber 20 is maintained higher than the pressure of the cavity 11 of the heating tank 10 . In addition, by adjusting the total area of the plurality of steam fine injection ports 111 of the steam injection unit 110 and the area of the steam inlet 103 of the preheating unit 31 , the heating bath 10 and the preheating unit 31 are formed. You can also adjust the amount of steam supplied.

With this configuration, a process of heating and cooking using the steam generating device 1a according to the first embodiment of the present invention will be described as follows.

First, after receiving water in the steam generating chamber 20 , the water is heated by the heater 23 accommodated in the heating unit 21 to generate steam.

Steam is finely divided through the plurality of steam fine injection holes 111 of the steam injection unit 110 , and is supplied to the cavity 11 of the heating tank 10 .

When steam is supplied to the cavity 11 of the heating tank 10 , water is supplied to the cavity 11 , and the water is heated with the steam supplied to the cavity 11 .

When the temperature of the water in the cavity 11 of the heating tank 10 reaches 100° C., the object to be heated is supplied to the cavity 11 to cook the object to be heated.

At this time, as steam is generated in the heating unit 21 , the heating unit 21 has the highest pressure relative to that of the preheating unit 31 and the heat insulating unit 61 . The pressure of the preheating unit 31 to which steam is supplied through the steam flow pipe 101 is relatively lower than that of the heating unit 21 . In addition, the heat insulating part 61 to which steam is not supplied has a relatively lower pressure than that of the preheating part 31 .

On the other hand, when the lowest water level of the heating unit 21 is detected from the lowest water level sensor 25 for the heating unit, the preheating unit pressure intensifier 41 is operated to supply the water preheated by the preheating unit 31 to the heating unit 21. do.

First, a process of supplying the water preheated by the preheating unit 31 to the heating unit 21 using the pressure intensifying device 41 for the preheating unit will be described as follows.

When the pressure boosting means 43 for the preheating part is operated to discharge the fluid discharged through the pressure boosting means 43 for the preheating part at a pressure higher than that of the heating part 21, the on/off valve 49 for the preheating part is opened and , the fluid flowing through the flow pipe 45 for the preheating unit flows into the preheating tank 33 through the inlet 47 for the preheating unit, so that the preheating unit 31 is in a relatively high pressure state than that of the heating unit 21 . The check valve 37 is opened, and the water contained in the preheating tank 33 is injected into the heating unit 21 .

Accordingly, it is possible to supplementally supply the water preheated by the preheating unit 31 to the heating unit 21 . As the water stored in the preheating unit 31 is supplied to the heating unit 21 , it is possible to shorten the preheating time by minimizing the time it takes for the water in the heating unit 21 to reach 100° C. and change to steam. And, when the water evaporates from the heating unit 21, preheated water is supplied, not room temperature water, to minimize the time it takes for the water supplied to the heating unit 21 to reach 100° C. and evaporate. .

Then, when the highest water level of the heating unit 21 is detected from the highest water level sensor 27 for the heating unit, the pressure increasing means 43 for the preheating unit is stopped to stop supplying water to the heating unit 21 . At this time, as the pressure boosting means 43 for the preheating unit is stopped, the opening/closing valve 49 for the preheating unit is closed, and the heating unit 21 is in a relatively high pressure state than that of the preheating unit 31, thereby Since the check valve 37 is closed, the water contained in the preheating unit 31 is not injected into the heating unit 21 .

Next, a process of supplying the water stored in the heat insulating unit 61 to the preheating unit 31 by using the pressure increasing device 71 for the heat insulating unit will be described as follows.

When the pressure-increasing means 73 for the insulator is operated to discharge the fluid discharged through the pressure-increasing means 73 for the heat insulator at a pressure higher than that of the preheating unit 31, the on/off valve 79 for the insulation is opened and , the fluid flowing through the flow pipe 75 for the heat insulating section flows into the heat insulating tank 63 through the inlet 77 for the heat insulating section, so that the heat insulating section 61 is in a relatively high pressure state than that of the preheating section 31, so that for the heat insulating section The check valve 67 is opened and the water accommodated in the heat insulating tank 63 flows into the preheating tank 33 . Accordingly, the water stored in the heat insulating unit 61 can be supplemented with the preheating unit 31 .

Then, when the highest water level of the preheating unit 31 is sensed from the highest water level sensor 53 for the preheating unit, the pressure increasing means 73 for the insulating unit is stopped to stop supplying water to the heating unit 21 . At this time, as the pressure-increasing means 73 for the insulator is stopped, the on/off valve 79 for the insulator is closed, and the preheating unit 31 is in a relatively high pressure state than that of the insulator 61, thereby Since the check valve 67 is closed, the water contained in the heat insulating unit 61 is not injected into the preheating unit 31 .

As described above, in the steam generating device 1a according to the first embodiment of the present invention, the preheating unit ( The water stored in 31 ) may be supplemented to the heating unit 21 , and the water stored in the heat insulating unit 61 may be supplied to the preheating unit 31 .

2 shows a steam generating device according to a second embodiment of the present invention.

Unlike the first embodiment to be described above, the steam generating device 1b according to the second embodiment of the present invention has a steam control valve ( 93 is provided, and the steam flow pipe 101 is provided with a flow pipe valve 107 for controlling the amount of steam flowing through the steam flow pipe 101 . The flow tube valve 107 allows the fluid to flow in only one direction.

On the other hand, by providing the steam control valve 93 in the steam passage 91 and the flow tube valve 107 in the steam flow tube 101 , steam can be selectively supplied to the heating tank 10 or the preheating unit 31 . have. For example, when supplying steam to the heating tank 10 , the flow pipe valve 107 may be closed to block the steam supply to the preheating unit 31 .

In addition, the amount of steam supplied to the heating tank 10 and the preheating unit 31 may be adjusted. For example, when the steam generated by the heating unit 21 flows to the heating tank through the steam passage 91 , the opening degree of the flow tube valve 107 is adjusted to prevent a portion of the steam flowing to the heating bath 10 from being transferred to the flow tube valve. It flows through the steam flow pipe 101 through 107 and can be supplied to the preheating unit 31 .

Regarding the process of supplying water to the heating unit 21 in the steam generating device 1b according to the second embodiment of the present invention and the preheating process of the preheating unit 31, the steam generating device ( Since it is the same as that of 1a), a detailed description thereof will be omitted.

3 shows a steam generating apparatus according to a third embodiment of the present invention.

Unlike the third embodiment to be described above, the steam generating device 1c according to the third embodiment of the present invention communicates the steam passage 91 and the steam flow pipe 101 and generates steam flowing through the steam passage 91 . A communication path 95 guiding to the flow pipe 101 is formed.

The communication path 95 is provided with an opening/closing valve 97 for opening and closing the communication path 95 .

Accordingly, the steam generated by the heating unit 21 is selectively supplied to the heating tank 10 and the preheating unit 31 by selectively operating the opening and closing of the steam control valve 93 and the opening/closing valve 97 for the communication path. can

That is, by opening the steam control valve 93 and closing the opening/closing valve 97 for the communication path, all of the steam generated by the heating unit 21 may be supplied to the heating tank 10 . In addition, when the heating tank is not used, the communication path 95 and the steam flow pipe ( 101), the water may be supplied to the preheating unit 31 and used to preheat the water stored in the preheating unit 31 .

In addition, the amount of steam supplied to the heating tank 10 and the preheating unit 31 may be adjusted. For example, when the steam generated in the heating unit 21 flows to the heating bath through the steam passage 91, the opening degree of the steam control valve 93 and the opening/closing valve 97 for the communication passage is adjusted, and the heating bath 10 is It is possible to adjust the amount of steam supplied to the steam generator and the amount of steam supplied to the preheating unit 31 by flowing it through the steam flow pipe 101. The water replenishment supply process and the preheating process of the preheating unit 31 are the same as those of the steam generator 1a according to the first embodiment, and thus detailed descriptions thereof will be omitted.

4 shows a steam generating apparatus according to a fourth embodiment of the present invention.

Unlike the first embodiment to be described above, in the steam generator 1d according to the fourth embodiment of the present invention, the preheating tank 33 has a ring shape and is disposed around the heating unit 21 .

Accordingly, the steam generating device 1d according to the fourth embodiment of the present invention does not include the components of the steam passage 91 and the steam control valve 93 in the heating unit 21, and the remaining components are described above. It is the same as that of the first embodiment.

For the process of supplying water to the heating unit 21 and preheating the preheating unit 31 in the steam generating device 1d according to the fourth embodiment of the present invention, the steam generating device ( Since it is the same as that of 1a), a detailed description thereof will be omitted.

Meanwhile, although not shown in FIG. 4, the steam generating device 1d according to the fourth embodiment of the present invention is provided with a flow pipe valve 107 in the steam flow pipe 101 as shown in FIG. The amount of steam supplied to the tank 10 and the preheating unit 31 can be adjusted.

5 shows a steam generating apparatus according to a fifth embodiment of the present invention.

The steam generator 1e according to the fifth embodiment of the present invention does not include each component of the preheating unit in the above-described first embodiment, a steam flow pipe, a steam inlet, a check valve for steam inflow, and a steam control valve. .

The heat insulating tank 63 is disposed along the circumference of the heating unit 21 to form a steam passage 91 that is a flow path of steam flowing into the heating bath 10 , and at the same time crosses the upper region of the heating unit 21 . erased and placed

Accordingly, in the steam generating device 1e according to the fifth embodiment of the present invention, the process of supplying the water stored in the heat insulating section 61 to the heating section 21 by using the pressure increasing device 71 for the heat insulating section. The explanation is as follows.

When the pressure-increasing means 73 for the insulator is operated to discharge the fluid discharged through the pressure-increasing means 73 for the insulator at a pressure higher than that of the heating unit 21, the on/off valve 79 for the insulation is opened and , the fluid flowing through the flow pipe 75 for the heat insulating section flows into the heat insulating tank 63 through the inlet 77 for the heat insulating section, so that the heat insulating section 61 is in a relatively high pressure state than that of the heating section 21, thereby The check valve 67 is opened, and the water accommodated in the heat insulating tank 63 is injected into the heating unit 21 . That is, although the internal pressure of the heating unit 21 where steam is generated is relatively higher than the internal pressure of the insulating unit 61, due to the operation of the pressure boosting means 73 for the insulating unit, the internal pressure of the insulating unit 61 is heated. The portion 21 is temporarily higher than the internal pressure.

Accordingly, it is possible to supplementally supply the water stored in the heat insulating unit 61 to the heating unit 21 . As the water stored in the heat insulating unit 61 is supplied to the heating unit 21, the time it takes for the water supplied to the heating unit 21 to reach 100° C. and change into steam is minimized.

Then, when the highest water level of the heating unit 21 is sensed from the highest water level sensor 27 for the heating unit, the pressure increasing means 73 for the heat insulating unit is stopped to stop the water supply to the heating unit 21 . At this time, as the pressure-increasing means 73 for the heat insulating part is stopped, the on/off valve 79 for the heat insulating part is closed, and the heating part 21 is in a relatively high pressure state than that of the heat insulating part 61, thereby The check valve 67 is closed so that the water accommodated in the heat insulating unit 61 is not injected into the heating unit 21 .

6 shows a steam generating apparatus according to a sixth embodiment of the present invention.

Unlike the fifth embodiment to be described above, in the steam generator 1f according to the sixth embodiment of the present invention, the heat insulating tank 63 has a ring shape and is disposed around the heating part 21 .

Accordingly, the steam generating device 1f according to the sixth embodiment of the present invention does not include the components of the steam passage 91 in the heating unit 21, and the remaining components are the same as those of the above-described fifth embodiment. do.

Since the process of supplying water to the heating unit 21 in the steam generating device 1f according to the sixth embodiment of the present invention is the same as that of the steam generating device 1e according to the fifth embodiment, detailed description thereof omit

7 shows a steam generating apparatus according to a seventh embodiment of the present invention.

Unlike the first embodiment to be described above, in the steam generating device 1g according to the seventh embodiment of the present invention, the preheating unit 31 is disposed along the circumference of the heating unit 21 and at the same time as the lower portion of the heating unit 21 . Also, the heating unit 21 is provided with a preheating water supply unit 200 . Unlike the first embodiment, the heating unit 21 is not provided with the highest water level sensor and the lowest water level sensor.

The preheating water supply unit 200 supplies the water preheated in the preheating tank 33 to the heating unit 21 . The preheating water supply unit 200 includes a preheating water pipe 201 that communicates with the preheating tank 33 and the heating unit 21 and through which the preheating water flows, and the preheating water is raised and lowered by buoyancy and the preheating water is discharged to the heating unit 21 . and a buoyancy rod 211 for opening and closing the discharge port 205 of the water pipe 201 .

The preheating water pipe 201 is disposed in the vertical direction of the heating unit 21 . The preheating water pipe 201 has an inlet 203 through which the water preheated in the preheating tank 33 is introduced, and an outlet 205 through which the preheated water is discharged to the heating unit 21 , and forms a flow path for the preheated water. do.

The preheating water pipe 201 is coupled to the bottom surface of the heating unit 21 so that the outlet 205 of the preheating water pipe 201 communicates with the heating unit 21 .

The buoyancy rod 211 is provided to supply the same amount of preheated water from the preheating tank 33 in real time as the reduced amount of water in the heating unit 21 when the water inside the heating unit 21 is reduced. The buoyancy rod 211 is provided so as to be liftable on the preheating water pipe 201 , and opens and closes the discharge port 205 of the preheating water pipe 201 .

The buoyancy bar 211 includes a floating buoyancy bar head 213 . The buoyancy bar head 213 is provided inside the heating unit 21 . The buoyancy rod head 213 is raised and lowered in the heating unit 21 by buoyancy.

In addition, the buoyancy bar 211 includes a guide rod (215). The guide rod 215 has a rod shape having a smaller diameter and a predetermined length than that of the buoyancy rod head 213 , and is provided to be elevating in the preheating water pipe 201 . The guide rod 215 supports one end of the buoyancy bar head 213 and moves up and down in the preheating water pipe 201 .

The buoyancy bar head 213 may have a larger diameter than the outlet 205 of the preheating water pipe 201 . In this case, the buoyancy bar head 213 may be raised and lowered by the buoyancy inside the heating unit 21 to open and close the discharge port 205 . That is, when the buoyancy bar 211 rises or descends and flows, the buoyancy bar head 213 is spaced apart from the outlet 205 of the preheating water pipe 201 and the outlet 205 is opened to preheat the preheating tank 33 . The heated water flows into the heating unit 21 . Conversely, when the buoyancy rod 211 stops and the buoyancy rod head 213 closes the discharge port 205 of the preheating water pipe 201 , the discharge port 205 is closed and the preheated water in the preheating tank 33 is transferred to the heating unit (21) does not flow into it.

In addition, the buoyancy bar 211 further includes a stopper 217 that limits the rise of the buoyancy bar 211 . The stopper 217 is mounted on the buoyancy bar 211 , for example, mounted on the guide rod 215 of the buoyancy bar 211 , and ascends or descends along the inner periphery of the preheating water pipe 201 . The stopper 217 has a disk shape with a diameter larger than the diameter of the discharge port 205 . The stopper 217 is caught on the outlet 205 of the preheating water pipe 201 while ascending along the inner periphery of the preheating water pipe 201 to limit the rise of the buoyancy rod 211 , and at the same time, the preheating water pipe 201 . ) of the discharge port 205 is closed. Also, when the stopper 217 descends along the inner periphery of the preheating water pipe 201 while the discharge port 205 of the preheating water pipe 201 is closed, the discharge port 205 is opened. Here, in the present embodiment, although it is illustrated that the stopper 217 is provided on the buoyancy rod 211 , the present invention is not limited thereto, and the stopper 217 may be provided on the preheating water pipe 201 .

With this configuration, a process in which the preheated water of the preheating tank 33 is supplied to the heating unit 21 using the preheating water supply unit 40 will be described as follows.

The water accommodated in the preheating tank 33 is preheated by absorbing heat transferred from the heating unit 21 or by steam introduced through the check valve 105 for steam introduction. The heating unit 21 is provided with a buoyancy rod 211 , the buoyancy rod head 213 is provided on the heating unit 21 , and the guide rod 215 is provided on the preheating water pipe 201 . The buoyancy bar head 213 located in the heating unit 21 closes the discharge port 205 of the preheating water pipe 201 when there is no water inside the heating unit 21, and then the water enters the heating unit 21. When accommodated, it rises due to the buoyancy of the water. As water is heated and evaporated in the heating unit 21 , steam is generated, and when the water level inside the heating unit 21 is lower than the upper end of the buoyancy rod head 213 , the buoyancy rod 211 begins to descend.

When the buoyancy rod 211 is lowered (by an electric signal, etc.), the pressure boosting means 43 for the preheating unit operates and discharges the fluid at a high pressure to open the on/off valve 49 for the preheating unit, thereby opening the preheating unit flow pipe 45 ) flows into the preheating tank 33 through the inlet 47 for the preheating unit, so that the preheating unit 31 has a relatively higher pressure than the heating unit 21 .

At this time, as the buoyancy rod 211 descends, the stopper 217 that has closed the discharge port 205 also descends along the preheating water pipe 201 to open the discharge port 205 . When the discharge port 205 is opened, the preheated water in the preheating tank 33 flows from the preheating unit 31 to the heating unit 21 without a separate power device due to the pressure difference between the preheating unit 31 and the heating unit 21 . , that is, it is supplied in the opposite direction of gravity.

When the preheated water is supplied and the water level of the heating unit 21 increases and the upper end of the buoyancy rod 211 is submerged in water, the operation of the preheating unit pressure boosting means 43 is stopped (by an electric signal, etc.) The preheated water supply is cut off. At this time, as the pressure boosting means 43 for the preheating unit is stopped, the opening/closing valve 49 for the preheating unit is closed, and the heating unit 21 is in a relatively high pressure state than that of the preheating unit 31 , and thus the preheating unit check Since the valve 37 is closed, the water contained in the preheating unit 31 is not injected into the heating unit 21 .

Although not shown, the top of the heating unit may cross the inside of the heating unit as shown in FIG. 1 .

In the seventh embodiment of the present invention, the discharge port 205 of the preheating water pipe 201 is shown to be opened and closed by the buoyancy rod 211 as an opening and closing member, but the present invention is not limited thereto. 203 may be opened and closed by a separate opening and closing member (not shown). In some embodiments, the opening/closing member may have a shape that is screwed or fitted to the inlet 203 or the outlet 205 of the preheating water pipe 201 or may be a valve.

Meanwhile, in order to selectively supply steam to the heating bath 10 or the preheating unit 31 or to control the amount of steam supplied to the heating bath 10 and the preheating unit 31, the flow pipe valve 107 of FIG. It can also be employed in the steam generating device 1g according to the seventh embodiment.

In addition, in the steam generating device 1g according to the seventh embodiment, unlike that shown in FIG. 7 , the preheating unit 31 and the heat insulating unit 61 are not separated, and the preheating unit 31 and the heat insulating unit are not separated as shown in FIG. 6 . The parts 61 may be combined into one configuration.

8 shows a steam generating apparatus according to an eighth embodiment of the present invention.

As shown in FIG. 8 , the steam generating device 1h according to the eighth embodiment of the present invention includes a steam supply pipe 300 through which the steam generated by the heating unit 21 flows. In this embodiment, the steam fine injection hole 111 is not formed on the bottom surface of the heating bath 10 , but is formed on the steam supply pipe 300 . Here, only one steam fine injection hole 111 may be formed on the steam supply pipe 300 . The steam supply pipe 300 communicates with the upper portion of the heating unit 21 , and is accommodated in the cavity 11 of the heating bath 10 . One or more steam supply pipes 300 may be provided in the heating tank 10 .

As described above, according to the present invention, in a steam generating chamber that generates steam by heating water to heat a liquid and an object to be heated, a heating unit generating steam by heating water, and preheating of preheating water provided to the heating unit By providing the unit and the heat insulating unit to insulate the preheating unit, the steam generating chamber for generating steam is prevented from coming into direct contact with external air, thereby preventing heat loss due to radiant heat and preventing burns of the user.

In addition, by heating enough water so that the heater is not exposed to air in the steam generating room, the time it takes for the water to reach 100°C and change to steam until steam is generated can be minimized to shorten the preheating time. do.

In addition, by supplying preheated water when water is evaporated in the steam generating chamber, it is possible to minimize the time it takes for the water supplied to the steam generating chamber to reach 100° C. and evaporate, thereby shortening the cooking time.

In addition, water to be injected into the heating unit as well as the heating tank is supplied so that the steam generated in the heating unit of the steam generating chamber is not lost, and when cooking is not performed in the heating bath, the steam generated in the heating unit is supplied to the heating unit. By supplying water to be injected, steam loss is minimized, and the amount of steam supplied to the heating tank can be adjusted.

And, it is possible to supply an amount of water corresponding to the evaporation amount of water in the steam generating chamber in real time.

In addition, even if water falls below a certain level due to steam generation in the steam generating chamber, exposure of the heater to air is prevented, thereby preventing cracks on the surface of the heater and extending the lifespan.

As mentioned above, although embodiments of the present invention have been described with reference to the accompanying drawings, 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 its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1a, 1b, 1c, 1d, 1e, 1f: steam generator
10: heating bath
11: cavity
20: steam generating chamber
21: heating unit
23: heater
31: preheating unit
33: preheating tank
35: water outlet for preheating part
37: check valve for preheating part
41: pressure intensifier for preheating unit
61: insulation
63: insulation tank
65: water outlet for insulation
67: check valve for insulation
71: pressure intensifier for insulation
91: steam passage
101: steam flow pipe
110: steam injection unit
111: steam fine nozzle

Claims (27)

a heating bath accommodating the heating object and the liquid;
a steam generating chamber configured to generate steam by heating water to heat the liquid accommodated in the heating tank and the heating object; and
and a steam spraying unit formed with one or more steam micro-jet holes for finely dividing the steam generated in the steam generating chamber and spraying it to the heating tank,
The steam generating chamber,
a heating unit for generating steam by heating water;
a preheating unit preheating the water supplemented and supplied to the heating unit by absorbing the heat transferred from the heating unit; and
Including a heat insulating part for insulating the heating part and the preheating part,
The preheating unit,
preheating tank to store water;
a water outlet for a preheating unit through which water stored in the preheating tank is injected into the heating unit;
a check valve for the preheating unit preventing a reverse flow of water flowing from the preheating tank to the heating unit and opening and closing the water outlet for the preheating unit; and
and a pressure intensifying device for the preheating unit that pressurizes the water contained in the preheating tank at a pressure higher than that of the heating unit and flows it through the check valve for the preheating unit to the heating unit. delete According to claim 1,
The water discharge port for the preheating unit is formed adjacent to the bottom surface of the preheating tank, the steam generating device. According to claim 1,
Due to the operation of the pressure intensifier for the preheating unit, the situation in which the heating unit maintains a relatively high pressure compared to the preheating unit is changed, and the preheating unit temporarily maintains a relatively high pressure compared to the heating unit. , steam generator. According to claim 1,
The pressure intensifier for the preheating unit,
a pressure intensifying means for a preheating unit for discharging a high-pressure fluid;
a flow pipe for the preheating unit for guiding the fluid discharged by the pressure increasing means for the preheating unit to flow into the preheating tank;
an inlet for the preheating unit formed in the preheating tank to communicate with the flow pipe for the preheating unit and through which a fluid flowing along the flow pipe for the preheating unit flows into the preheating tank; and
and an opening/closing valve for the preheater that opens and closes the inlet for the preheater according to the pressure of the fluid flowing into the preheater. a heating bath accommodating the heating object and the liquid;
a steam generating chamber configured to generate steam by heating water to heat the liquid accommodated in the heating tank and the heating object; and
and a steam spraying unit formed with one or more steam micro-jet holes for finely dividing the steam generated in the steam generating chamber and spraying it to the heating tank,
The steam generating chamber,
a heating unit for generating steam by heating water;
a preheating unit preheating the water supplemented and supplied to the heating unit by absorbing the heat transferred from the heating unit; and
Including a heat insulating part for insulating the heating part and the preheating part,
The insulator is
Insulation tank to store water;
a water outlet for the heat insulating unit through which the water stored in the heat insulating tank flows to the preheating unit;
a check valve for an insulator for preventing a reverse flow of water flowing from the heat insulator to the preheating unit and opening and closing the water outlet for the heat insulator; and
and a pressure-increasing device for the heat insulating unit that pressurizes the water contained in the heat insulating tank at a pressure higher than that of the preheat unit and flows it through the check valve for the heat insulating unit to the preheat unit. 7. The method of claim 6,
Due to the operation of the pressure intensifier for the heat insulator, the situation in which the preheating unit maintains a relatively high pressure compared to the heat insulator is changed, so that the heat insulator temporarily maintains a relatively high pressure compared to the preheating unit , steam generator. 7. The method of claim 6,
The pressure-increasing device for the insulator,
a pressure-increasing means for discharging a high-pressure fluid;
a flow pipe for the heat insulating section for guiding the fluid discharged by the pressure increasing means for the heat insulating section to flow into the heat insulating tank;
an inlet for the heat insulating section formed in the heat insulating tank to communicate with the flow pipe for the heat insulating section and through which the fluid flowing along the flow pipe for the heat insulating section flows into the heat insulating section; and
and an opening/closing valve for the heat insulating part that opens and closes the inlet for the heat insulating part according to the pressure of the fluid flowing into the heat insulating tank. a heating bath accommodating the heating object and the liquid;
a steam generating chamber configured to generate steam by heating water to heat the liquid accommodated in the heating tank and the heating object; and
and a steam spraying unit formed with one or more steam micro-jet holes for finely dividing the steam generated in the steam generating chamber and spraying it into the heating tank,
The steam generating chamber,
a heating unit for generating steam by heating water;
a preheating unit preheating the water supplemented and supplied to the heating unit by absorbing the heat transferred from the heating unit; and
Including a heat insulating part for insulating the heating part and the preheating part,
a steam flow pipe for guiding the steam generated by the heating unit to be introduced into the preheating unit;
a steam inlet formed in the preheating part to communicate with the steam flow pipe, and through which steam flowing along the steam flow pipe flows into the preheating part; and
and a check valve for steam inlet provided in the steam flow pipe or the steam inlet, preventing the water of the preheating unit from flowing backward along the steam flow pipe, and opening and closing the steam flow pipe or the steam inlet. 10. The method of claim 9,
The steam inlet is formed adjacent to the bottom surface of the preheating unit, the steam generating device. 10. The method of claim 9,
and a steam passage provided in the heating unit to form a flow path of steam flowing to the heating tank,
wherein the steam flow pipe is branched from the steam passage. 12. The method of claim 11,
The steam generating device further comprising a steam control valve provided in the steam passage to control the amount of steam flowing into the heating tank. 13. The method of claim 11 or 12,
Further comprising a flow pipe valve for controlling the amount of steam flowing through the steam flow pipe,
By controlling the flow pipe valve, it is possible to control whether steam is supplied to the heating tank and the preheating unit and the amount of steam to be supplied. a heating bath accommodating the heating object and the liquid;
a steam generating chamber configured to generate steam by heating water to heat the liquid accommodated in the heating tank and the heating object; and
and a steam spraying unit formed with one or more steam micro-jet holes for finely dividing the steam generated in the steam generating chamber and spraying it to the heating tank,
The steam generating chamber,
a heating unit for generating steam by heating water; and
Including a heat insulating part to insulate the heating part,
The insulator is
Insulation tank to store water;
a water discharge port for the heat insulating part through which the water stored in the heat insulating tank flows to the heating part;
a check valve for a heat insulator to prevent a reverse flow of water flowing from the heat insulator to the heating and to open and close the water outlet for the heat insulator; and
and a pressure-increasing device for the heat insulating part that pressurizes the water contained in the heat insulating tank at a pressure higher than that of the heating part and flows it to the heating part through the check valve for the heat insulating part. delete 15. The method of claim 6 or 14,
The water outlet for the heat insulating part is formed adjacent to the bottom surface of the heat insulating tank, the steam generating device. 15. The method of claim 14,
The situation in which the heating part maintains a relatively high pressure compared to the heat insulating part is changed due to the operation of the pressure intensifier for the heat insulating part, so that the heat insulating part temporarily maintains a relatively high pressure compared to the heating part, steam generating device. 15. The method of claim 14,
The pressure-increasing device for the insulator,
a pressure-increasing means for discharging a high-pressure fluid;
a flow pipe for the heat insulating section for guiding the fluid discharged by the pressure increasing means for the heat insulating section to flow into the heat insulating tank;
an inlet for the heat insulator, which is formed in communication with the flow pipe for the heat insulator to communicate with the flow pipe for the heat insulator, and through which a fluid flowing along the flow pipe for the heat insulator flows into the heat insulator; and
and an opening/closing valve for the heat insulating part that opens and closes the inlet for the heat insulating part according to the pressure of the fluid flowing into the heat insulating tank. 15. The method of any one of claims 1, 6, 9, 14,
Provided in the heating unit, the steam generating device further comprising a water level sensor for the heating unit for detecting the water level of the heating unit. 15. The method of any one of claims 1, 6, 9, 14,
Provided in the heat insulator, the steam generating device further comprising a water level sensor for the heat insulator for detecting the water level in the heat insulator. 10. The method of any one of claims 1, 6, 9,
The steam generator further comprising a water level sensor for the preheating unit provided in the preheating unit to detect the water level in the preheating unit. 10. The method of any one of claims 1, 6, 9,
The steam generator further comprising a preheating water supply unit for supplying the preheating water preheated by the preheating unit or the heat insulating unit to the heating unit. 23. The method of claim 22,
The preheating water supply unit,
a preheating water pipe communicating with the preheating unit or the heat insulating unit and the heating unit and through which preheating water flows; and
and a buoyancy rod that senses the water level of the heating unit, ascends and descends by buoyancy, and opens and closes a discharge port of the preheating water pipe through which the preheating water is discharged to the heating unit. 24. The method of claim 23,
A steam generating device for supplying preheating water to the heating unit in real time by raising and lowering the buoyancy rod according to a change in the water level of the heating unit. A steam generating chamber that generates steam by heating water to heat a liquid and a heating object, comprising:
a heating unit for generating steam by heating water; and
and a preheating unit for preheating the water supplemented and supplied to the heating unit by absorbing the heat transferred from the heating unit,
The preheating unit,
preheating tank to store water;
a water outlet for a preheating unit through which water stored in the preheating tank is injected into the heating unit;
a check valve for the preheating unit preventing a reverse flow of water flowing from the preheating tank to the heating unit and opening and closing the water outlet for the preheating unit; and
and a pressure intensifying device for the preheating unit that pressurizes the water contained in the preheating tank at a pressure higher than that of the heating unit and flows it through the check valve for the preheating unit to the heating unit. 26. The method of claim 25,
The steam generating chamber further comprising an insulator configured to insulate the heating unit and the preheating unit and supply water to the preheating unit. A steam generating chamber that generates steam by heating water to heat a liquid and a heating object, comprising:
a heating unit for generating steam by heating water; and
Insulating the heating unit and including a heat insulating unit for supplying water to the heating unit,
The insulator is
Insulation tank to store water;
a water discharge port for the heat insulating part through which the water stored in the heat insulating tank flows to the heating part;
a check valve for a heat insulator to prevent a reverse flow of water flowing from the heat insulator to the heating and to open and close the water outlet for the heat insulator; and
and a pressure-increasing device for the heat insulating part that pressurizes the water contained in the heat insulating tank at a pressure higher than that of the heating part and flows it to the heating part through the check valve for the heat insulating part.

Images