KR20190051246A - Roasting apparatus with super heated water vapor - Google Patents

Abstract

The present invention relates to a grilling apparatus using superheated steam, which is able to grill fish or meat through superheated steam and maximizes thermal efficiency by collecting and reusing supplied superheated steam. According to the present invention, the grilling apparatus using superheated steam includes: a boiler generating steam; a steam separator installed in a steam main pipe, through which steam generated in the boiler is transferred, and removing moisture included in the steam; a pressure reducing valve installed in the steam main pipe to be positioned in the rear side of the steam separator in a moving direction of the steam; a pressure gauge installed in the rear side of the pressure reducing valve and measuring the pressure of steam passing through the steam main pipe; a supplemental heater heating the steam to become superheated steam; a steam spraying unit spraying superheated steam heated in the supplemental heater toward target food to be processed; and a steam collecting unit collecting the superheated steam sprayed from the steam spraying unit and resupplying the same to the steam main pipe between the supplemental heater and the pressure reducing valve.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a roasting apparatus using superheated steam,

The present invention relates to a roasting apparatus using superheated steam, and more particularly, to a roasting apparatus using superheated steam having a maximum thermal efficiency by recovering and reusing supplied superheated steam by burning fish or meat through superheated steam. will be.

There are many ways to cook fish or meat.

Cooking can be done in various ways, such as boiling in water or baking on charcoal.

In addition, as the food processing industry develops, there is an increasing number of cases where small fish and meat are packaged and sold at home.

As the number of single-person households or small-sized households with less than 3 persons increases, there is an increasing market for processing industry that can purchase small quantities of food and prepare them quickly, and the food service industry is also increasing.

A food factory that massively cooks (heats) and supplies large quantities of food for large restaurants, group meals, or sales uses food cookers that can heat a single item of food in large quantities.

Such mass cooking cooks can be divided into a batch type and a continuous type.

The batch type is a method in which the food ingredients are loaded into a closed or space-divided cooker or a large oven, etc., before the cooking, or after being cooked for a certain period of time, and continuously feeding the food ingredients of a predetermined unit through the conveyor And then heat treatment is performed.

Such a cooking device can be determined depending on the type of food or cooking method, whether or not a batch type or a continuous type device is applied. In case of a fish grill or a meat grill in which meat products such as fish or meat are cooked at a predetermined temperature, It is highly efficient to cook in large quantities through the device.

Conventionally, such a continuous type processing apparatus is provided with a conveyor belt for conveying food to be cooked, and a heat source is installed in the vicinity of the belt or the belt itself to heat the food to be cooked. A heating device using gas or electricity was applied.

However, in the case of a cooking apparatus using a gas or an electric heater, the cost is high and the problem of food burning or oxidation may occur, which is disadvantageous for a large amount of food cooking.

Patent Registration No. 10-1022796 Korean Patent Publication No. 10-1695401

The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method and apparatus for heating a food using superheated steam and recovering and reusing superheated steam used for heating food, It is an object of the present invention to provide a grilling apparatus.

The present invention provides a roasting apparatus using superheated steam, comprising: a boiler for generating steam; a water separator installed in a steam main pipe through which water vapor generated in the boiler is transferred and for removing moisture contained in the water vapor; A pressure gauge installed in the steam main pipe so as to be located at a rear side of the water separator along a direction of the steam separator; a pressure gauge installed at the rear of the steam pressure reducing valve for measuring a pressure of steam passing through the steam main pipe; A steam injector for injecting the superheated steam heated in the auxiliary heater into the food to be processed and the superheated steam injected from the steam injector to recover the superheated steam, And a steam recovery unit for re-supplying the steam to the steam main pipe.

A grilling apparatus using superheated steam includes a conveyor belt for conveying the food to be processed and a heating chamber installed in a heating zone of the conveyor belt for partitioning a space so that superheated steam injected from the steam injecting unit does not leak to the outside .

The steam recovery unit includes a recovery member installed in the heating chamber to recover superheated steam injected from the steam injection unit, a filter installed on the recovery member to remove foreign substances contained in the steam recovered, And a suction fan for sucking the air inside the heating chamber with the recovering member.

Wherein the steam recovery unit includes an exhaust gas exhausting unit for exhausting steam from the superheated steam supplied to the inlet and the outlet of the heating chamber to the outside of the heating chamber, And a control unit which receives the measurement result of the exhaust pressure measuring unit and controls the driving of the suction fan so that external air does not flow into the heating chamber.

The method of the present invention can quickly and efficiently heat food to be processed such as fish or meat through superheated steam, recover superheated steam used for processing food, and reuse it for food heating It has the advantage of maximizing energy efficiency.

FIG. 1 is a diagram showing the configuration of a roasting apparatus using superheated steam according to the present invention,
FIG. 2 is a view showing a superheated steam generating unit of a roasting apparatus using superheated steam of FIG. 1;
3 is a conceptual diagram schematically showing a heating chamber and a steam injection unit and a steam recovery unit,
4 is a block diagram showing the drive relationship of the steam recovery unit.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, a grill apparatus using superheated steam according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Referring to the drawings, a grilling apparatus 10 using superheated steam according to the present invention can heat a food to be processed using superheated steam, and includes a conveyor belt 100 capable of feeding a food to be processed, A heating chamber 200 installed in a part of the conveyor belt 100 to provide a space defined by the conveyor belt 100 so as to heat the object food to be processed, an overheated steam supply unit for supplying superheated steam to the interior of the heating chamber 200, A steam injector 400 for injecting superheated steam supplied from the unit 300 and the overheated steam supply unit 300 into the food to be processed and a steam recovery unit 500 for recovering the superheated steam injected again.

The conveyor belt 100 extends to a predetermined length as a conveying means for conveying the food to be processed and is formed in the form of a belt or a chain capable of conveying the food to be processed.

The conveyor belt 100 may be formed in various shapes or materials depending on the type of food to be processed.

The heating chamber 200 is formed to enclose a part of the conveyor belt 100, and heating is performed in the process of passing the food through the corresponding section.

The heating chamber 200 is formed such that both ends of the heating chamber 200 are opened so that the food to be processed can enter and advance, but the other areas except the inlet and the outlet are formed so that the inflow of outside air can be blocked.

In the heating chamber 200, four steam spraying units 400 are arranged at predetermined intervals along the conveying direction of the conveyor belt 100.

In the present embodiment, four steam injection parts 400 are shown, but the number of the steam injection parts 400 can be increased or decreased as needed.

Each of the steam injecting units 400 is installed in the heating chamber 200 together with the steam collecting unit 500. Each of the steam injecting units 400 includes an overheated steam supplying unit 300 for supplying superheated steam, Lt; / RTI >

FIG. 2 shows an embodiment of the superheated steam supply unit 300.

The superheated steam supply unit 300 of the present invention includes a boiler 310 for boiling water to supply water vapor, a water separator 330 installed in the steam main pipe 320 through which the steam discharged from the boiler 310 moves, And includes a valve 340, a strainer 350, a first pressure gauge 361, a pressure reducing valve 370, a flow meter 363, a second pressure gauge 362 and an auxiliary heater 380.

When water is boiled in the boiler (310) and steam is discharged to the steam main pipe (320), water vapor is removed from the water separator (330). The moisture contained in the water vapor may lower the heat transfer efficiency and cause corrosion or erosion of the components or piping of the system. In particular, according to the present invention, since superheated steam to be sprayed into the food to be processed is provided, if the pipe contains foreign substances due to erosion or corrosion, it may cause hygiene problems of the food to be processed. Therefore, ) To remove the moisture contained in the water vapor so that the dry steam can be supplied to the steam supply unit.

A stop valve 340 is provided at the rear of the water separator 330 so as to interrupt the supply of steam supplied to the steam main pipe 320 or to open the steam main pipe 320. When the steam is supplied through the strainer 350, Filter the foreign matter that has become.

The front steam main pipe 320 of the pressure reducing valve 370 is referred to as a first main pipe 321 and the rear steam main pipe 320 of the pressure reducing valve 370 is referred to as a second main pipe 322 A first pressure gauge 361 and a second pressure gauge 362 are provided in the first main pipe 321 and the second main pipe 322 around the pressure reducing valve 370 to measure the pressure of steam passing through the main pipe, .

When the steam generated in the boiler 310 flows into the first steam main pipe 320 in a high pressure state, the steam is reduced in pressure while passing through the pressure reducing valve 370 and passes through the second main pipe 322. The pressure of the second main pipe 322 can be maintained at a predetermined level by the pressure reducing valve 370 and the flow rate of the steam passing through the second main pipe 322 can be maintained at a certain level have.

A temperature sensor or a flow rate sensor may be provided in the second main pipe 322 where the second pressure gauge 362 is installed.

The auxiliary heater 380 is installed at the end of the second main pipe 322 and heats the supplied steam to become superheated steam.

Although not shown, an electric heater for heating the steam passing through the inside of the auxiliary heater 380 is built in, and a flow path for steam around the electric heater is formed around the electric heater. The flow path has a guide plate protruding inward from an upper portion and a lower portion so as to guide the moving direction of the steam into a zigzag shape so that the steam is formed to increase the time during which the steam stays in the auxiliary heater 380, The steam heated by the heater 380 is discharged as superheated steam and the discharge line of the auxiliary heater 380 is connected to the steam sprayer 400.

As described above, the steam jetting unit 400 is positioned inside the heating chamber 200 and has a plurality of jetting holes, so that superheated steam is jetted toward the food to be processed through the jetting holes.

The shape and length of the steam injection part 400, the interval and size of the injection holes, and the like can be variously set according to processing conditions and requirements.

The steam recovery unit 500 recovers the superheated steam supplied to the inside of the heating chamber 200 and re-supplies the superheated steam to the second main pipe 322.

The steam recovery unit 500 includes a recovery member 510 installed inside the heating chamber 200, a filtration filter 520 installed inside the recovery member 510, A control unit 540 for controlling the driving of the suction fan 530 and the suction fan 530 for sucking the air inside the heating chamber 200 and a first pressure sensor 551 installed at the inlet and outlet sides of the heating chamber 200 And a second pressure sensor 552.

The control unit 540 controls the recovery member 510 to recover the air inside the heating chamber 200 through the suction fan 530. The recovery member 510 is heated by the driving of the suction fan 530, The superheated steam in the chamber 200 is sucked and the superheated steam sucked is filtered through the filter 520 through the superheated steam and then supplied to the second main pipe 322.

The control unit 540 controls driving of the suction fan 530 based on the measured values of the first pressure sensor 551 and the second pressure sensor 552.

When the superheated steam is supplied to the interior of the heating chamber 200, the internal pressure of the heating chamber 200 is increased to block external air from flowing into the interior of the heating chamber 200, And is discharged to the inlet and outlet sides of the heating chamber 200.

The first pressure sensor 551 and the second pressure sensor 552 measure the air pressure at the inlet or the outlet of the heating chamber 200 and the control unit 540 measures the pressure of the inlet or the outlet of the heating chamber 200 200 to the outside so that the air is discharged to the outside.

When excess steam is recovered in the steam recovery unit 500, the internal pressure of the heating chamber 200 is lowered and the outside air of the heating chamber 200 flows into the interior of the heating chamber 200. As a result, the heat efficiency of the food to be processed is low Air can be introduced into the steam recovery unit 500 as well. In this case, since the supply system of the superheated steam may be a problem, when the measured values measured by the first pressure sensor 551 and the second pressure sensor 552 are negative, driving of the suction fan 530 is restricted, The internal pressure of the heating chamber 200 is increased to block external air from entering the interior of the heating chamber 200.

The superheated steam supplied to the interior of the heating chamber 200 is recovered by the steam recovery unit 500 and then supplied to the second main pipe 322. After being reheated through the auxiliary heater 380, .

As the superheated steam recovered in the steam recovery unit 500 flows into the second main pipe 322, the inflow amount of the steam generated in the boiler 310 by the pressure reducing valve 370 into the second main pipe 322 Can be reduced, and energy efficiency can be increased.

The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.

10: Roasting device using superheated steam
100: conveyor belt 200: heating chamber
300: superheated steam supply unit 310: boiler
320: steam main pipe 321: first main pipe
322: second main body 330: water separator
340: Stop valve 350: Strainer
361: first pressure gauge 362: second pressure gauge
363: Flow meter 370: Pressure reducing valve
380: auxiliary opening 400: steam injection part
500: steam recovery unit 510: recovery member
520: Filtration filter 530: Suction fan
540: control unit 551: first pressure sensor
552: second pressure sensor

Claims (4)

A boiler for generating steam;
A water separator installed in the steam main pipe to generate water vapor generated in the boiler and to remove water contained in the water vapor;
A pressure reducing valve installed in the steam main pipe so as to be positioned behind the water separator along the moving direction of the water vapor;
A pressure gauge disposed behind the pressure reducing valve and measuring a pressure of steam passing through the steam main pipe;
An auxiliary heater for heating the steam to be superheated steam;
A steam spraying unit for spraying the superheated steam heated in the auxiliary heater toward the food to be processed; And
And a steam recovery unit for recovering superheated steam injected from the steam injector and re-supplying the superheated steam to the steam main pipe between the auxiliary heater and the pressure reducing valve.
The method according to claim 1,
A conveyor belt for conveying the food to be processed;
Further comprising a heating chamber installed in a heating zone of the conveyor belt for partitioning a space so that superheated steam injected from the steam injecting unit does not leak to the outside.
3. The method of claim 2,
The steam recovery unit includes a recovery member installed in the heating chamber to recover superheated steam injected from the steam injection unit,
A filtering filter installed on the recovering member to remove foreign substances contained in the recovered steam,
And a suction fan for sucking the air inside the heating chamber with the recovering member.
The method of claim 3,
Wherein the steam recovery unit includes an exhaust gas exhausting unit for exhausting steam from the superheated steam supplied to the inlet and the outlet of the heating chamber to the outside of the heating chamber, A pressure measuring unit,
And a control unit which receives the measurement result of the exhaust pressure measuring unit and controls driving of the suction fan so that external air does not flow into the heating chamber.

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