KR101319980B1 - Steam generator for cooking food - Google Patents

Abstract

PURPOSE: A steam generator for cooking food is provided to reduce cooking time because overheated steam is directly sprayed into the food to evenly cook the food. CONSTITUTION: A steam generator for cooking food comprises a case (10), a rod-shaped heater (20), a steam generating pipe (24), a steam moving pipe, a socket (30), and a holder (44). The case has a steam generating chamber and a control chamber for controlling the generation of steam. The heater is installed inside the steam generating chamber and has a coupling part (22) with a thread. A hot wire (21) is embedded in the heater. The steam generating pipe is separated from the surface of the heater to form a first steam passage (27). A water supply pipe (25) is connected to the top of the steam generating pipe. Multiple first through-holes (26) for supplying the steam are formed on the bottom of the steam generating pipe. The steam moving pipe is separated from the surface of the steam generating pipe to form a second steam passage (36). A steam discharging pipe (40) is coupled to the top of the steam moving pipe. The socket is coupled to the bottom of the steam generating pipe. Multiple second through-holes (31) corresponding to the first through-holes are formed on the top of the socket. A discharging hole (32) is formed in the outer circumference of the socket to discharge the steam. The holder has one or more needles (45) coupled to the upper part of the steam discharging pipe to discharge overheated steam to press-fit the food.

Description

{Steam Generator for Cooking Food}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a steam generator for cooking food, and more particularly, to a steam generator for cooking food by spraying high-temperature superheated steam directly into a food.

Generally, a boiler is a device that generates heat with high temperature and pressure by transmitting the heat of combustion of fuel to water or the like. These boilers are used to supply steam to steam engines such as thermal power plants and ships, or to work or heating devices of various factories. Furthermore, the boiler is divided into several types in structure. Among them, the once-through boiler corresponding to the forced circulation boiler is a boiler of a tube made by bending a water pipe and a long pipe. It is also called a forced-flow boiler. It is a type of boiler in which water is fed from the end and fed by a pump, and the superheated steam is sent out from the other end of the tube by heating, evaporating and overheating in order. The perfusion boiler is suitable for the generation of high pressure steam, and in particular, it is a kind of forced circulation boiler in the case of supercritical pressure boiler.

Superheated Vapor is a steam of high calorific value which is heated without changing pressure. When the liquid is heated with a constant pressure, the temperature rises, and when it reaches a certain temperature, it begins to evaporate. In this case, the temperature does not change until the whole is evaporated even if it is heated again, and the liquid and vapor coexist. This is referred to as wet saturated steam, and all that has become steam is referred to as dry saturated steam. When the dry saturated steam is heated again, the temperature of the steam rises, which is called superheated steam. By using this steam, the efficiency of the boiler, the engine, and the turbine can be increased. Moreover, the superheated steam is a transparent high temperature colorless transparent gas produced by heating the steam generated by boiling water without applying pressure. Air heat transfer is based on convection heat, but superheated steam is highly effective in cooking food because it has high thermal efficiency by heat transfer by radiant heat and condensation heat in addition to convection heat. In the case of convective heat, the heat transfer rate of superheated steam is about 10 times faster than that of heated air. In particular, oxidation and combustion of the object to be heated can be suppressed by performing heat treatment in a low oxygen state. A typical superheater produces steam at a pressurized pressure of 10 kg / cm 3 G at 183.3 ° C, and normally produces steam at 7 to 8 kg / cm 3 G at 170 ° C. On the other hand, in order to produce the superheated steam of low pressure, there is a method of directly heating the first heated steam with the burner, a method of indirectly heating the shaft-holding material or the like using a heater, and a method of induction heating.

High temperature superheated steam is useful for food industry, drying industry or environmental industry. That is, it can be mainly used for cooking, drying, concentration, sterilization, sterilization of food, drying of animal waste such as sewage sludge, animal manure, food waste, sewage sludge, pigs and cattle.

Conventionally, in a boiler or a steam generator for generating superheated steam for cooking various foods, the generated steam is sprayed on the food surface to be cooked to cook the food.

As a prior art related to the generation of the steam and the cooking apparatus using the steam, the following Patent Document 1 discloses that the steam supplied to the steam generating container 21 is heated by the steam generating heater 22, And is heated by superheated steam by the heater 23 for supply to the cooking chamber 11.

In addition, in Patent Document 2, when water supplied to the water supply line 30 is sprayed into the compartment space 70 through the sprayer 40, the heater 50 under the compartment space generates water sprayed with the superheated steam, Is supplied to the space portion 220 of the cooking container 200 through the discharge port 12 of the mounting table 10.

Therefore, conventionally, the structure for generating superheated steam is complicated, or structural limitations for increasing the temperature and capacity of the superheated steam have been implied. Also, since the generated steam is sprayed onto the surface of the food or the steam is indirectly applied to the food, the inside and outside of the food are not evenly ripened or the time for cooking the food is increased. As a result, there has been a problem that the reliability of the boiler or the steam generating device, which generates steam, such as the food cooking cost, is increased due to the increase of energy such as gas or electric power for cooking food.

Korean Patent Publication No. 10-2005-0056056 (published on June 14, 2005, superheated steam cooking apparatus) Republic of Korea Patent Application Publication No. 10-2007-0047527 (2007.05.07.Open, cooking utensils using superheated steam)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and it is an object of the present invention to produce a superheated steam at a high temperature and spray directly into a food to cook food.

Another object of the present invention is to reduce the energy and shorten the cooking time by allowing the superheated steam of high temperature to be generated in a large amount in a short time.

It is another object of the present invention to provide a method of cooking a food which is easy to carry, on the spot.

According to an aspect of the present invention, there is provided a steam generating apparatus for cooking food, comprising: a case having a steam generating chamber for generating steam and a control chamber for controlling steam generation; A bar heater installed in the steam generating chamber and having a fastening portion having a built-in hot wire for generating heat by an external power source and a screw thread formed at a lower portion thereof; A steam generator tube having a first steam passage formed at a predetermined interval from the heater surface and connected to a supply pipe for supplying water at an upper end thereof, and having a plurality of first through holes for supplying steam to a bottom surface thereof; A steam moving tube having a second steam passage formed at a predetermined interval from the surface of the steam generating tube and having a steam discharge pipe coupled to the top; The socket is coupled to the lower end of the steam generating pipe, the screw is coupled to the fastening part and the second through hole corresponding to the first through hole is formed at the upper end, and the outlet hole is formed to discharge steam on the outer circumference, One or more needles for discharging the steam is provided with a holder for coupling the instant food to fit, the steam generator for a food cooking applied to the direct heating method is applied while the water supplied from the water supply pipe is heated in contact with the heater It is characterized by providing.

In addition, in the present invention, the heat insulating material for shielding heat to the outer periphery of the steam pipe may be combined.

In addition, in the present invention, the first temperature sensor for sensing the temperature of the heater is mounted inside the heater, the second temperature sensor for sensing the temperature of the superheated steam may be mounted inside the steam pipe.

In addition, in the present invention, the spiral guide plate for inducing steam downward to the heater outer peripheral surface may be integrally coupled.

In addition, in the present invention, a plurality of spiral wires for inducing steam downward to the heater outer peripheral surface may be integrally coupled.

Further, in the present invention, a bracket for fixing the heater to the bottom surface of the case may be further included.

Further, in the present invention, a fixing member may be further included, which is screwed with a screw thread formed on the outer periphery of the steam discharge pipe to fix the upper portion of the steam discharge pipe to the case.

In the present invention, a control panel may be installed in the control room to supply power to the heater, set the temperature of the heater, the temperature of the superheated steam, and control the amount of superheated steam discharged for cooking food.

According to the present invention, the structure of the steam generator for increasing the temperature and the capacity of the high-temperature superheated steam for cooking food is simple, and the superheated steam is injected directly into the food to uniformly cook the inside and the outside of the food, It is possible to reduce the time and the high temperature superheated steam to be generated in a large amount of time in a short time, thereby saving energy and shortening the cooking time, and making the portable food easy to cook, . ≪ / RTI >

1 is a schematic side view showing a steam generator for food cooking according to the present invention.
2 is a cross-sectional view showing a first embodiment of a food cooking steam generator according to the present invention.
3 is a cross-sectional view showing a second embodiment of a food cooking steam generator according to the present invention.
Figure 4 is a cross-sectional view showing a third embodiment of the steam generator for cooking food according to the present invention.

Hereinafter, a steam generator for cooking food according to various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In Fig. 1, the steam generator for cooking food is installed in the case 10. The case 10 is divided into a steam generating chamber 11 for generating steam and a control chamber 12 for controlling steam generation. That is, a plurality of steam generators are provided in the steam generating chamber 11, power is supplied to the control chamber 12 by a heater, the temperature of the heater and the temperature of the superheated steam are set, and the amount of superheated steam A control panel 13 for controlling the control panel 13 is provided.

In FIG. 2 showing the first embodiment of the food cooking steam generator according to the present invention, the heater 20 is installed in the steam generating chamber 11 in a rod shape and is applied from the outside through the control panel 13. The heating wire 21 for generating heat with the DC power source rectified by the power source or the control panel 13 is embedded. The heater 20 is provided at its lower portion with a fastening portion 22 having a threaded portion. The amount of evaporation, that is, the amount of superheated steam, may vary depending on the amount of electric power applied to the heat wire 21 by the heater 20.

The steam generating tube 24 is installed such that the first steam passage 27 is formed at a predetermined interval on the surface of the heater 20. A supply pipe 25 through which water is supplied is connected to an upper portion of the steam generating tube 24, and a plurality of first through holes 26 through which steam is supplied is formed at a bottom surface thereof. The supply pipe 25 to which the water is supplied may be provided with a solenoid valve for controlling the amount of water supplied to the control panel 13. The steam generating tube 24 is vaporized when the water supplied from the water supply pipe 25 contacts the heater 20 to be converted into a high temperature superheated steam, and the superheated steam is the first steam passage 27 of the steam generating tube 24. It is supplied down along) and is discharged through the first through hole (26). The first steam passage 27 may vary the amount of evaporation of the superheated steam according to the interval between the heater 20 and the steam generating tube 24.

The steam moving pipe 35 is provided with a second steam passage 36 formed at a predetermined interval on the surface of the steam generating pipe 24. The steam discharge pipe 40 is coupled to the top of the steam pipe (35). The lower end of the steam pipe 35 is coupled to the surface of the socket 30 by welding or the like. The second steam passage 36 allows the superheated steam discharged through the first steam passage 27 to be supplied upward, and the second steam passage is formed by heat radiated from the heater 20 through the steam generating tube 24. Superheated steam rising along (36) is reheated.

The socket 30 is coupled to the bottom of the steam generating tube 24, the screw thread is formed on the inner peripheral surface is screwed with the fastening portion 22 of the heater 20, the thread formed on the outer circumference. The second through hole 31 corresponding to the first through hole 26 is formed at the upper end of the socket 30. The outer circumference of the socket 30 is formed with a plurality of discharge holes 32 through which steam is discharged.

The steam discharge pipe 40 passes through the case at the upper end of the steam generating chamber 11 and is fixedly coupled to the fixing member 42. A fastening screw 41 is formed at the outer periphery of the steam discharge pipe 40 and a fastening member 42 screwed to the fastening screw 41 is engaged. The fixing member 42 penetrates the case 10 and is engaged with the fastening screw 41 of the steam discharge pipe 40. The fixing member 42 is formed of a body passing through the through hole formed in the case 10 and a flange whose upper portion is closely fixed to the upper end of the case 10 with a diameter larger than the diameter of the body.

The holder 44 is coupled to the inside of the upper portion of the steam discharge pipe 40 and is provided with one or more needles 45 through which superheated steam is discharged so as to be tightly coupled with the ready-to-eat food. The holder 44 is a cone-shaped instant food filled with rice flour or the like serving as a material for rice cakes therein, and can be inserted and fixed by forcefully inserting the so-called 'rice cakes (3) A single needle 45 is formed. In addition, the holder 44 is a cup-shaped instant food filled with rice or the like serving as a raw material of rice, and the bottom surface of the so-called 'cup 2' in which rice is formed by spraying superheated steam therein is tightly inserted and fixed A plurality of needles 45 are formed. Therefore, when a plurality of steam generating apparatuses are installed in the case 10, a holder 44 capable of inserting and fixing a plurality of conical cups 3 or cups 2 may be applied. When the outer material of the cone 3 or the cup 2 is pressed and inserted into the holder 44 by a carton or a synthetic resin pack or the like, a through hole is formed in the bottom surface of the rice cakes 3 or the cup 2 by the needles 45, (45) is inserted into the cone or cup.

The outer circumferential surface of the steam pipe 35 is preferably wrapped with a heat insulating material 50 having a predetermined thickness to shield heat emitted. A heat-resistant film or tape for fixing or water-proofing is preferably wrapped around the outer circumferential surface of the heat insulating material 50.

In addition, the first temperature sensor 23 for detecting the temperature of the heater is mounted inside the heater 20, and the second temperature sensor 37 for detecting the temperature of the superheated steam is mounted inside the steam pipe 35. . The first temperature sensor 23 senses the heating temperature of the heater 20 set in the control panel 13 and controls the power applied to the heater 20 or the heater 20 is in an abnormally high temperature state . The second temperature sensor 37 senses the temperature of the superheated steam set by the control panel 13 so that the temperature and the steam amount of the superheated steam can be controlled.

In addition, the fastening portion 22 of the heater 20 is fastened with the nut 48 is provided with a bracket 47 for fixing the heater 20 to the bottom surface of the case 10. Therefore, the steam generator is fixed by the bracket 47 so as to be vertically upright in the steam generating chamber (11).

In FIG. 3, which shows a second embodiment of the food cooking steam generator according to the present invention, steam vaporized with water supplied from the water supply pipe 25 to the outer circumferential surface of the heater 20 is the first steam passage 27. Spiral guide plate 52 leading to the lower side is to be combined integrally. The spiral guide plate 52 is to allow the first steam passage 27 formed between the heater 20 and the steam generating tube 24 to be formed in a spiral shape. This is to increase the time that the water supplied from the water supply pipe 25 is in contact with the heater 20 while descending along the spiral induction plate 52 to induce the water to evaporate to steam and then to a higher temperature superheated steam.

In addition, in Figure 4 showing a third embodiment of the steam generator for cooking food according to the present invention, the water vaporized together with the water supplied from the water supply pipe 25 to the outer peripheral surface of the heater 20 is the first steam passage (27) A plurality of spiral wires 54 leading downward can be integrally coupled. The spiral wire 54 is wound around a plurality of wires at regular intervals on the surface of the heater 20. This further increases the time for the water supplied from the water supply pipe 25 to contact the heater 20 while descending along each of the plurality of spiral wires 54 to induce a higher temperature superheated steam after the water vaporizes into steam. It is.

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who has it will know it easily.

DESCRIPTION OF SYMBOLS 1 Steam generator 2: Cup rice 3: Corn cake 10: Case 11: Steam generator 12: Control room 13: Control panel 20: Heater 21: Heated wire 22: Fastening part 23, 37: Temperature sensor 24: Steam generating pipe 25: Supply pipe 26, 31: through hole 27, 36: steam passage 30: socket 32: discharge hole 35: steam moving pipe 40: steam discharge pipe 41: fastening screw 42: fixing member 44: holder 45: needle 47: bracket 48: nut 50: heat insulating material 52 Spiral guide plate 54 spiral wire

Claims (12)

A steam generator for cooking food, comprising:
A case 10 having a steam generating chamber 11 for generating steam and a control chamber 12 for controlling steam generation;
A bar heater 20 installed in the steam generating chamber 11 and equipped with a heat source 21 for generating heat by an external power source and a fastening portion 22 having a threaded portion formed at a lower portion thereof;
The first steam passage 27 is formed and installed at a predetermined interval from the surface of the heater 20, the supply pipe 25 is connected to the water supply is connected to the upper end and a plurality of first through holes 26, the steam is supplied to the bottom The formed steam generating tube 24;
A steam moving tube 35 having a second steam passage 36 formed at a predetermined interval on the surface of the steam generating tube 24 and having a steam discharge tube 40 coupled to an upper end thereof;
The discharge hole is coupled to the lower end of the steam generating tube 24, the screw coupling portion 22 and the second through hole 31 corresponding to the first through hole 26 is formed on the top and the steam is discharged to the outer periphery ( A socket 30 in which 32 is formed, and
And a holder (44) provided with one or more needles (45) coupled to the inside of the upper portion of the steam discharge pipe (40) and discharging the superheated steam to tightly fit the instant food,
Steam generator for food cooking is applied a direct heating method that is heated while the water supplied from the supply pipe 25 is supplied to the heater 20 is heated.
The steam generator of claim 1, wherein a heat insulating material (50) for shielding heat is connected to the outer circumference of the steam pipe (35).
The method of claim 1, wherein the first temperature sensor 23 for detecting the temperature of the heater is mounted inside the heater 20, the second temperature sensor for sensing the temperature of the superheated steam in the upper portion of the steam pipe (35) Steam generator for cooking food equipped with (37).
According to claim 1, Steam heater for food cooking is integrally coupled to the spiral guide plate 52 for inducing steam downward on the outer peripheral surface of the heater (20).
The steam generator of claim 1, wherein a plurality of spiral wires (54) are integrally coupled to an outer circumferential surface of the heater (20).
delete delete delete delete The cooking apparatus according to claim 1, further comprising a bracket (47) for fixing the heater (20) to the bottom surface of the case (10) while being fastened to the fastening part (22) Steam generator.
The food cooking steam generator as set forth in claim 1, further comprising a fixing member (42) screwed with a screw thread formed on the outer periphery of the steam discharge pipe (40) to fix the upper part of the steam discharge pipe (40) .
The control panel as claimed in claim 1, wherein the control room (12) is provided with a control panel for supplying power to the heater (20), setting the temperature of the heater (20) and the temperature of the superheated steam, (13) is installed.

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