KR102094700B1 - A manufacturing device of cooked rice - Google Patents

Abstract

The present invention relates to an instant rice manufacturing device. The instant rice manufacturing device according to the present invention comprises: a chamber unit including an accommodating space in which a container containing rice grains is arranged therein; a saturated water injecting unit connected to the chamber unit and injecting liquid saturated water into the container; and a pressure control unit for phase change induction connected to the chamber unit and sterilizing the rice grains by controlling the pressure inside the chamber unit and phase-changing the saturated water into steam.

Description

Instant rice manufacturing equipment {A MANUFACTURING DEVICE OF COOKED RICE}

The present invention relates to an instant rice production apparatus, and more particularly, to an instant rice production apparatus that can shorten the time required for the sterilization process of sterilizing microorganisms on rice and has excellent sterilization performance.

In general, rice is prepared by adding a certain amount of water to rice and heating it at a temperature of about 100 ° C for about 30 minutes to 1 hour. However, if the rice is cooked and stored without eating immediately, the moisture in the rice is blown away, making the rice harder, and the color changes to yellow, making it difficult to eat.

In addition, it is known that microorganisms are present on the surface of rice. In the process of cooking rice, common microorganisms are killed, but heat-resistant spores are not completely killed, so it is not a problem if you eat rice within a day, but keep the rice at room temperature for more than a day or It is a problem when you distribute it. In fact, lunch boxes packaged and sold with side dishes are supposed to be eaten within 7 hours of the manufacturing time.

In order to solve this problem, packaged instant rice that can be stored for a long time by reducing the number of microorganisms in rice and killing heat-resistant spores has been distributed on the market. This packed instant rice tastes just like the rice just cooked, so it is used by people who are hard to eat rice on time, such as office workers, working couples, or the elderly, as well as when traveling or traveling.

The instant rice manufacturing process according to the prior art includes a pre-treatment process for quantitatively filling rice in a container, a sterilization process for sterilizing rice contained in a container, a cooking process for heating rice to cook, and a lid on the container It includes a sealing process for covering, and a post-treatment process for sterilization and cooling of the container.

For the sterilization process described above, the instant rice manufacturing apparatus according to the prior art has a sterilization line in which the sterilization process is performed. In this sterilization line, the containers containing rice grain are sequentially transported by a transport chain, and steam is sprayed into the sterilization line to perform sterilization.

However, the instant rice production apparatus according to the prior art is a method of sterilizing by filling the entire interior of the sterilization line with steam, so there is a problem in that the amount of steam is used and the sterilization time is long.

In addition, the instant rice production apparatus according to the above-described prior art has a problem that the sterilizing power is low and thus it is impossible to completely sterilize the heat-resistant microorganism.

In addition, when heating a container containing rice grains and rice grains with steam sprayed into the sterilization line, the difference in heat transfer between rice grains not exposed to steam placed on the bottom of the container and rice grains exposed on the steam is disposed above the rice grains placed on the bottom of the container. Due to this, the rice grain placed on the bottom of the container is not well sterilized. Therefore, the instant rice production apparatus according to the prior art calculates the time required for the sterilization process and the amount of steam consumed based on the temperature rise rate inside the container to sufficiently sterilize the rice grains placed on the bottom of the container.

The rate of temperature rise inside the container increases from the bottom of the container to the top of the container. However, sterilization takes longer and steam consumption is increased as sterilization is performed based on the temperature increase rate of the bottom area of the container where the temperature rise rate is slow. There are many problems.

Republic of Korea Registration No. 10-0726155, (2007.06.01.)

The problem to be solved by the present invention is to reduce the amount of steam used to sterilize the rice grains and shorten the sterilization time, while increasing the sterilizing power by penetrating the heat source (steam or saturated water, etc.) into the rice grains placed on the deep bottom surface of the container. It is to provide an instant rice manufacturing apparatus that can.

According to an aspect of the present invention, a chamber unit in which an accommodation space in which a container containing rice grains is arranged is provided; A saturated water injection unit connected to the chamber unit and injecting saturated water in a liquid state into the container; And a pressure control unit for inducing phase change to sterilize the rice grain by being connected to the chamber unit and controlling the pressure inside the chamber unit to change the saturated water into steam to sterilize the rice grains. .

The saturated water injection unit is disposed in the upper region of the container, the saturated water injection nozzle unit for discharging the saturated water; A saturated water supply pipe connected to the chamber unit and coupled to the saturated water injection nozzle part to supply the saturated water to the saturated water injection nozzle part; And a saturated water generator connected to the saturated water supply pipe and generating the saturated water.

The chamber unit, the chamber body portion which is communicated to the accommodation space in one end region and is provided with a container entrance to and from the container; And it is rotatably coupled to the chamber body portion, it may include a door portion for opening and closing the container entrance.

The chamber body portion, a first wall forming an outer wall of the chamber body portion; A second wall positioned inside the first wall and spaced apart from the first wall to be spaced apart; And a third wall disposed inside the second wall and forming the accommodation space.

The separation space may be formed in a vacuum atmosphere.

The third wall may be provided with a tray support member protruding from the inner wall surface of the third wall and supporting a tray on which the container is loaded.

The chamber body portion may be further connected to the third wall, and further include a tray movement support portion for slidingly supporting the tray.

The support for moving the tray, a support body coupled to the inner wall surface of the third wall; And a rotation roller rotatably coupled to the support body.

The chamber body portion, coupled to the third wall, may further include a heating portion for heating the accommodation space.

The pressure control unit for inducing phase change is connected to the chamber unit, a compression module for injecting air into the accommodation space; And it is connected to the chamber unit, it may include an exhaust module for discharging the air of the receiving space to the outside.

It is connected to the chamber unit, may further include a steam supply unit for supplying steam to the rice grains.

The steam supply unit is disposed in an upper region of the container, a steam injection unit for spraying the steam; A steam supply pipe part connected to the chamber unit and coupled to the steam injection part to supply the steam to the steam injection part; And it is connected to the saturated water injection unit and connected to the steam supply pipe, it may include a steam generating pressure reducing unit for lowering the pressure of the saturated water to phase change the saturated water into the steam.

The steam injection unit may be disposed in an upper region of the container.

The steam injection unit may be provided with a porous material.

The steam supply pipe portion, a supply pipe connected to the pressure generating portion for steam generation; An air supply pipe connected to the steam injection unit; A circulation pipe connected to the chamber unit; And a steam ejector connected to the supply pipe, the supply pipe and the circulation pipe, and injecting the steam supplied from the supply pipe into the supply pipe to induce the steam inside the chamber unit to flow into the circulation pipe. It can contain.

The steam ejector includes: a suction chamber in which an injection nozzle for spraying the steam supplied from the supply pipe is disposed and an internal space communicating with the circulation pipe is provided; And a diffuser communicating with the interior space of the suction chamber and connected to the air supply pipe.

In embodiments of the present invention, the pressure for inducing phase change to sterilize rice grains by changing the pressure inside the saturated water injection unit and the chamber unit to inject saturated water in a liquid state into a container containing the rice grains to sterilize the rice grains by steam. By providing a control unit, it is possible to increase the sterilizing power while reducing the steam consumption and sterilization time used to sterilize rice grains.

In addition, by using saturated water as a sterilizing heat source, the rice grains placed on the deep bottom surface of the container can penetrate the heat source, thereby reducing the temperature rise time and the amount of steam used in the container.

In addition, there is an advantage that the sterilization of large-capacity instant rice is easy because the heat source is easily penetrated deep into the container.

1 is a front view showing an instant rice manufacturing apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view of FIG. 1.
3 is a cross-sectional view showing the inside of the instant rice manufacturing apparatus of FIG. 1.
4 is a cross-sectional view illustrating the inside of the instant rice production apparatus of FIG. 2.
5 is a cross-sectional view showing the inside of the instant rice manufacturing apparatus in the side view of FIG. 1.
6 is an enlarged view of the inside of the instant rice manufacturing apparatus of FIG. 3.
7 is an enlarged view of the inside of the instant rice manufacturing apparatus of FIG. 5.
8 is a perspective view of the steam injection unit of FIG. 7.
9 is a view showing a saturated water supply pipe and a steam supply pipe to supply saturated water and steam to the chamber unit of FIG. 1.
10 is a view illustrating the steam ejector of FIG. 9.
11 is a view showing that the sterilization time is shortened by using the instant rice production apparatus of FIG. 1.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the accompanying drawings, which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. However, in describing the present invention, descriptions of functions or configurations already known will be omitted to clarify the gist of the present invention.

1 is a front view showing an instant rice manufacturing apparatus according to an embodiment of the present invention, Figure 2 is a plan view of Figure 1, Figure 3 is a cross-sectional view showing the inside of the instant rice manufacturing apparatus of Figure 1, Figure 4 2 is a cross-sectional view showing the inside of the instant rice manufacturing apparatus of FIG. 2, FIG. 5 is a cross-sectional view showing the interior of the instant rice manufacturing apparatus in the side view of FIG. 1, and FIG. 6 is an enlarged view of the instant rice production apparatus of FIG. One view, Figure 7 is an enlarged view of the inside of the instant rice manufacturing apparatus of Figure 5, Figure 8 is a perspective view of the steam injection unit of Figure 7, Figure 9 is to supply saturated water and steam to the chamber unit of Figure 1 The saturated water supply pipe and the steam supply pipe are shown, FIG. 10 is a view showing the steam ejector of FIG. 9, and FIG. 11 is that the sterilization time is shortened by using the instant rice production apparatus of FIG. It is a drawing shown.

The instant rice manufacturing apparatus according to this embodiment, as shown in Figures 1 to 10, the chamber unit 110 and the chamber unit, which is provided with a receiving space (P) in which a container (S) containing rice grains is disposed, the chamber Saturated water connected to the unit 110 and saturated water injection unit 120 for injecting liquid saturated water into the container S, and connected to the chamber unit 110 to adjust the pressure inside the chamber unit 110 Phase change induction pressure control unit 130 for sterilizing rice grains by changing the phase with steam, and introducing the container S into the chamber unit 110 and drawing the container S out of the chamber unit 110 Includes a draw-out unit (not shown), and a steam supply unit 140 connected to the chamber unit 110 and supplying steam to rice grains.

The chamber unit 110 is provided with an accommodation space P in which a container S containing rice grains is disposed. The chamber unit 110 is in the chamber body portion 111 and the chamber body portion 111, which is connected to the receiving space (P) in one region and is provided with a container entrance (F) through which the container (S) enters and exits. It is rotatably coupled and includes a door portion 118 that opens and closes the container entrance (F).

In this embodiment, the container S is provided in a bowl shape with an open top. Such a container S is mounted on a tray T capable of loading a plurality of containers S. Therefore, the container entrance F of the chamber unit 110 is formed to a size that allows the tray T to enter and exit.

In this embodiment, the chamber body 111 is provided in a cylindrical shape as shown in detail in FIGS. 1 to 5.

The chamber body portion 111, as shown in detail in FIGS. 1 to 5, is located inside the first wall 112 and the first wall 112 forming the outer wall of the chamber body 111 The second wall 113 is disposed spaced apart from the first wall 112 and spaced 115 between the first wall 112, and is disposed inside the second wall 113 and a third forming a receiving space (P) It is connected to the wall 114, the third wall 114, and the tray moving support 116 for slidingly supporting the tray T and the third wall 114, coupled to the third wall 114, and heating the receiving space P It includes a heating unit 117.

The first wall 112 forms the outer wall of the chamber body 111. The first wall 112 is formed by protruding from the inner wall surface of the first wall 112 and is provided with a plurality of support members (H) for the wall coupled to the second wall 113. The support member H for the wall is made of a material having a low thermal conductivity.

The second wall 113 is disposed inside the first wall 112, and is spaced apart from the inner wall surface of the first wall 112 with a space 115 therebetween. The separation space 115 is provided in a vacuum state. In this way, the separation space 115 provided between the first wall 112 and the second wall 113 is provided in a vacuum state, thereby providing an insulation effect between the first wall 112 and the second wall 113. Increase.

The third wall 114 is disposed inside the second wall 113 and is supported on the inner wall surface of the second wall 113. The third wall 114 is movably connected to the second wall 113. Accordingly, if cleaning and maintenance of the third wall 114 is required after a predetermined number of sterilization processes, the third wall 114 can be taken out from the inside of the second wall 113 to perform cleaning and maintenance, thereby cleaning And easy maintenance.

Inside the third wall 114, a receiving space P in which a tray T on which the container S is loaded is disposed is formed. The third wall 114 is provided with a tray support member 114a that protrudes from the inner wall surface of the third wall 114 and supports the tray T on which the container S is loaded. The tray support member 114a is connected to the edge region of the tray T to support the tray T, as shown in detail in FIG. 5.

The tray moving support 116 is connected to the third wall 114. The tray moving support unit 116 supports the tray T so as to be slidable. In this embodiment, the tray moving support 116 is, as shown in detail in Figure 5, the support body 116a coupled to the inner wall surface of the third wall 114, and the support body 116a rotatably coupled to It includes a rotating roller (116b).

The rotating roller 116b contacts the lower surface of the tray T to support the tray T. The rotating roller 116b is rotatably coupled to the support body 116a, so that a draw-out unit (not shown) draws the tray T into the receiving space P and withdraws it from the receiving space P In the tray (T) to facilitate the sliding movement.

As described above, the tray moving support unit 116 according to the present embodiment supports the tray T to be slidably moved, thereby smoothly sliding the tray T when the tray T is drawn in and out, and thus the tray T It is possible to prevent defects and damage to the tray (T) during the incoming and outgoing process.

The heating unit 117 is coupled to the third wall 114. The heating unit 117 heats the accommodation space (P). In this embodiment, the heating unit 117 is coupled to the outer wall of the third wall 114 as shown in detail in FIG. 5. The heating unit 117 transfers heat to the third wall 114 to heat the accommodation space P, which is the interior of the third wall 114.

The steam supplied by the steam supply unit 140 and the steam in which saturated water is phase-changed by the pressure control unit 130 for inducing phase change by heating of the heating unit 117 is cooled by rice grains and a container S, etc. It is prevented from being phase-converted to condensate.

In this embodiment, the far-infrared heater (FIR heater) is used for the heating unit 117, and thus the scope of the present invention is not limited, and various types of heaters may be used as the heating unit 117 of the present embodiment.

Meanwhile, the saturated water injection unit 120 is connected to the chamber unit 110. The saturated water injection unit 120 injects saturated water in a liquid state into the container S.

In this embodiment, the saturated water injection unit 120, as shown in detail in FIGS. 3 to 7, is disposed in the upper region of the container (S) and a saturated water injection nozzle unit 121 for discharging saturated water, It is connected to the chamber unit 110 and is coupled to the saturated water injection nozzle unit 121, the saturated water supply pipe unit 122 for supplying saturated water to the saturated water injection nozzle unit 121, and the saturated water supply pipe unit 122 ) And a saturated water generator 123 for generating saturated water.

The saturated water injection nozzle unit 121 is disposed in the upper region of the container S. The saturated water injection nozzle unit 121 discharges saturated water to the container S disposed in the lower region.

The saturated water supply pipe 122 is connected to the chamber unit 110 and supported by the chamber unit 110. The saturated water supply pipe part 122 is coupled to the saturated water injection nozzle part 121 to supply saturated water to the saturated water injection nozzle part 121.

The saturated water generator 123 is connected to the saturated water supply pipe 122. The saturated water generator 123 generates saturated water. In this embodiment, the saturated water generator 123 includes a boiler (not shown) for generating saturated water by heating water under high pressure to generate saturated water.

The pressure control unit 130 for inducing phase change is connected to the chamber unit 110. The pressure control unit 130 for inducing phase change sterilizes rice grains by changing the pressure of the receiving space P to change the saturated water into steam.

In this embodiment, the pressure control unit 130 for inducing phase change, as shown in detail in FIG. 1, is connected to the chamber unit 110 and a compression module 131 for injecting air into the receiving space P, It is connected to the chamber unit 110 and includes an exhaust module 133 for discharging the air in the receiving space (P) to the outside.

The compression module 131 is connected to the chamber unit 110. The compression module 131 injects air into the receiving space P to form the internal pressure of the receiving space P to approximately 5 to 10 bar in a high pressure state. In this embodiment, the compression module 131 is a compressor supply pipe (131a) for communicating with the receiving space (P), and is connected to the compression supply pipe (131a) and the compressor for supplying compressed air to the compression supply pipe (131a) ( 131b). In this embodiment, a reciprocating compressor 131b may be used as the compressor 131b, but the scope of the present invention is not limited, and the internal pressure of the receiving space P is set to a high pressure state (approximately 5 to 10 bar). Various types of compressors 131b that can be formed can be used as the compressors 131b of this embodiment.

The exhaust module 133 is connected to the chamber unit 110. The exhaust module 133 discharges the air in the receiving space P to the outside to form the inner pressure of the receiving space P to approximately 3 to 4 bar in a low pressure state. The exhaust module 133 in this embodiment includes a discharge pipe 133a communicating with the accommodation space P and a discharge valve 133b connected to the discharge pipe 133a and opening and closing the discharge pipe 133a.

The above-described saturated water injection unit 120 discharges saturated water when the internal pressure of the receiving space P has reached a high pressure state (about 5 to 10 bar) by the compression module 131. The saturated water discharged from the saturated water injection unit 120 is placed in the container S. At this time, since the internal pressure of the receiving space P is a high pressure state (approximately 5 to 10 bar), the saturated water contained in the container S maintains the saturated water state. Here, since the saturated water is in a liquid state, it penetrates to the bottom of the container (S), so that all the rice grains can be sufficiently wetted.

When the air in the receiving space P is discharged to the outside by the operation of the exhaust module 133 and the internal pressure of the receiving space P is changed to a low pressure state (approximately 3 to 4 bar), the saturation contained in the container S The water phase changes to saturated steam. At this time, as described above, the saturated water penetrates to the bottom of the container (S), so that all of the rice grains are sufficiently wet, and the phase-change saturated steam can contact all the rice grains to sterilize all the rice grains.

In addition, since the saturated water used in the present invention has a very large energy, the sterilization time can be shortened, and even heat-resistant microorganisms can be sterilized. In addition, according to the present invention, since the saturated water soaking the rice grains is changed to steam and sterilizes the rice grains, there is no need to fill the entire receiving space P with steam, thereby reducing the amount of steam used.

In addition, the instant rice production apparatus according to the present embodiment, by using saturated water as a sterilizing heat source, the rice grains placed on the deep bottom surface of the container S can penetrate the heat source, as shown in detail in FIG. 11 (c). Likewise, it is possible to shorten the sterilization time by reducing the temperature rise time inside the container S.

In FIG. 11 (b), the temperature of the bottom area BT inside the container S and the temperature of the upper area UT inside the container S are shown in a graph when using the instant rice manufacturing apparatus according to the prior art. . In FIG. 11 (b), t1 and t2 are time periods between the temperature rising in the bottom area BT inside the container and the temperature in the upper area UT inside the container, and t0 is a section in which the target temperature is stably maintained. to be. As shown in detail in FIG. 11 (b), the rate of temperature rise between the bottom area BT inside the container S and the upper area UT inside the container S is different, and the bottom area inside the container S is different. In order for BT) to be stably maintained at the target temperature, it takes more time than Q compared to the upper region UT inside the container S.

FIG. 11 (c) graphically shows the temperature of the bottom area BT inside the container S and the top area UT inside the container S when the instant rice manufacturing apparatus according to the present embodiment is used. do. In FIG. 11 (c), t3 is a time period during which the temperature of the bottom area BT inside the container S and the temperature of the upper area UT inside the container S rise, and t0 is the target temperature is stable. It is a section maintained by.

As shown in detail in Figure 11 (c), when using the instant rice production apparatus according to this embodiment the temperature of the bottom area (BT) inside the container (S) and the upper area (UT) inside the container (S) Temperature rises at almost the same rate. Therefore, unlike the instant rice production apparatus according to the prior art, the instant rice production apparatus according to the present embodiment has an advantage of significantly reducing sterilization time.

As described above, the instant rice manufacturing apparatus according to the present exemplary embodiment includes a saturated water injection unit 120 for injecting saturated water in a liquid state into a container S containing rice grains, and saturation by controlling the pressure inside the chamber unit 110. By providing a pressure control unit 130 for inducing phase change to sterilize rice grains by changing the water into steam, it is possible to increase the sterilizing power while reducing the steam consumption and sterilization time used to sterilize the rice grains. In addition, there is an advantage that the sterilization of large-capacity instant rice is easy because the heat source is easily penetrated deep into the container S.

Meanwhile, the steam supply unit 140 is connected to the chamber unit 110 to supply steam directly to rice grains. As described above, the instant rice manufacturing apparatus according to the present embodiment may further include a steam supply unit 140 that directly supplies steam to the rice grains, thereby further increasing the sterilization efficiency of the rice grains.

The steam supply unit 140, as shown in detail in FIGS. 3 to 9, is disposed in the upper region of the container (S) and connected to the steam injection unit 141 for spraying steam, and the chamber unit 110 The steam supply pipe unit 143, 144, 145, 146 coupled to the steam injection unit 141 to supply steam to the steam injection unit 141, and the saturated water injection unit 120 are connected to the steam supply pipe unit It is connected to (143, 144, 145, 146) and includes a steam generating pressure reducing unit 148 for lowering the pressure of the saturated water to phase change the saturated water into steam.

The steam injection unit 141 is disposed in the upper region of the container S. The steam injection unit 141 directly sprays steam with rice grains. In this embodiment, the steam injection unit 141 is disposed in the upper region of the container (S). As described above, the steam injection unit 141 directly sprays steam from the upper region of the container S to the rice grains, thereby increasing the sterilization efficiency because the distance and time for the steam to reach the rice grains is short.

In this embodiment, the steam injection unit 141 is provided in a disc shape, as shown in detail in FIG. 8. The steam injection unit 141 is provided in a shape having a diameter smaller than the diameter of the upper opening of the container (S) as shown in Figures 3 to 7.

In addition, the steam injection unit 141 of this embodiment is made of a porous (porous) material. That is, fine pores M are formed in the steam injection unit 141 as shown in FIG. 8.

In this way, the steam injection unit 141 is made of a porous material, so that the flow rate of the steam injected from the steam injection unit 141 can be reduced, and accordingly, the rice grains are scattered by the collision of the injected steam and the rice grains. In addition to being prevented, the starch on the rice grains is scattered by the sprayed steam, thereby preventing the steam injection unit 141 from being contaminated.

The pressure generating part 148 for steam generation is connected to the saturated water generating part 123 and is connected to the steam supply pipe parts 143, 144, 145, 146. The steam generating pressure reducing unit 148 includes a pressure reducing valve (not shown) that lowers the pressure of the saturated water to phase-change the saturated water supplied from the saturated water generating unit 123 into steam.

The steam supply pipe parts 143, 144, 145, and 146 are connected to the chamber unit 110. The steam supply pipes 143, 144, 145, and 146 are coupled to the steam injection unit 141 to supply steam to the steam injection unit 141.

In the present embodiment, the steam supply pipe parts 143, 144, 145, and 146 include a supply pipe 143 connected to the pressure generating part 148 for steam generation, and an air supply pipe 144 connected to the steam injection part 141. ), The circulation pipe 145 connected to the chamber unit 110, the supply pipe 143, the supply pipe 144 and the circulation pipe 145, and connected to the supply pipe 143 steam supplied from the supply pipe 143 It includes a steam ejector 146 to inject the steam inside the chamber unit 110 to flow into the circulation pipe 145 by spraying (144).

The supply pipe 143 is connected to the steam generating pressure reducing unit 148 to supply steam to the steam ejector 146.

The supply pipe 144 is connected to the steam ejector 146 and the steam injection unit 141 to transfer the steam supplied from the steam ejector 146 to the steam injection unit 141. The air supply pipe 144 is provided with an on-off valve CV that turns on / off the flow of steam.

The circulation pipe 145 is connected to the chamber unit 110 and the steam ejector 146 to allow steam in the accommodation space P to flow to the steam ejector 146. The circulation pipe 145 is provided with an on-off valve (CV) for turning on / off the flow of steam.

In addition, a discharge line 151 for discharging steam to the outside is connected to the circulation pipe 145. The discharge line 151 is provided with an on-off valve (CV) for turning on / off the flow of steam.

In addition, a bypass line 152 connected to the discharge line 151 is connected to the circulation pipe 145. The bypass line 152 is provided with a flow control valve (GV) for controlling the flow rate of the steam to be bypassed.

The steam ejector 146 is connected to the supply pipe 143, the supply pipe 144, and the circulation pipe 145. The steam ejector 146 injects the steam supplied from the supply pipe 143 into the supply pipe 144 to induce the steam inside the chamber unit 110 to flow into the circulation pipe 145.

In this embodiment, the steam ejector 146 is disposed with an injection nozzle 146a for spraying steam supplied from the supply pipe 143 and an intake chamber 146b in which an internal space communicating with the circulation pipe 145 is provided. , It is connected to the interior space of the suction chamber (146b) and includes a diffuser (146c) connected to the supply pipe (144).

When the steam ejector 146a sprays steam from the injection nozzle 146a, a vacuum suction input is generated in the interior space of the suction chamber 146b according to Bernoulli's principle, and accordingly, the circulation pipe 145 connected to the suction chamber 146b ) The steam in the receiving space (P) is sucked into the suction chamber (146b). The steam sucked into the suction chamber 146b is combined with the steam sprayed from the spray nozzle 146a to flow the diffuser 146c into the air supply pipe 144 and sprayed back into the rice grains through the steam sprayer 141.

As described above, the steam supply pipes 143, 144, 145, and 146 according to the present exemplary embodiment circulate the steam inside the chamber unit 110 by spraying the steam supplied from the supply pipe 143 to the supply pipe 144 By providing a steam ejector 146 to guide the flow to the pipe 145, the steam supplied to the receiving space (P) of the chamber unit 110 can be recirculated to be supplied back to the steam injection unit 141, and accordingly This has the advantage of reducing the amount of steam used.

The withdrawal withdrawal unit (not shown) draws the tray T loaded with the container S into the chamber unit 110 and draws the tray T out of the chamber unit 110. In the present embodiment, the withdrawal and withdrawal unit (not shown) includes a robot (not shown) for withdrawing and clamping and unclamping the tray T and moving the tray T relative to the chamber unit 110.

In addition, a trap (not shown) connected to the chamber unit 110 is provided in the instant rice manufacturing apparatus. The trap (not shown) discharges the condensed water generated by condensation of steam in the heat exchange with the rice grains and the container S in the receiving space P to the outside of the chamber unit 110.

Hereinafter, the operation of the instant rice production apparatus according to the present embodiment will be described with reference to FIGS. 1 to 10 mainly for a sterilization process.

First, the tray T on which the container S containing rice grains is loaded is placed in the accommodation space P, and then the door portion 118 is closed to close the accommodation space P.

Next, the pressure control unit 130 for inducing phase change forms the internal pressure of the receiving space P in a high pressure state (about 5 to 10 bar).

Subsequently, the saturated water injection unit 120 injects saturated water into the container S. At this time, since the saturated water is in a liquid state, it can penetrate to the bottom of the container (S) and sufficiently wet all the rice grains.

Next, the pressure control unit 130 for inducing phase change drops the internal pressure of the receiving space P to approximately 3 to 4 bar in a low pressure state. Due to the pressure drop, the saturated water contained in the container S is phase-saturated with saturated steam. At this time, as described above, the saturated water penetrates to the bottom of the container (S), so that all of the rice grains are sufficiently wet, and the phase-change saturated steam can contact all the rice grains to sterilize all the rice grains.

In addition, the steam supply unit 140 additionally sprays steam directly to the rice grains, thereby further enhancing sterilization power. At this time, the steam injection unit 141 for spraying the steam is provided with a porous material, thereby reducing the flow rate of the steam injected from the steam injection unit 141, and accordingly the rice grains are collided by the collision of the sprayed steam with the rice grains. It is prevented from being scattered, and the starch on the rice grains is scattered by the sprayed steam, thereby preventing the steam injection unit 141 from being contaminated.

As described above, the instant rice manufacturing apparatus according to the present invention includes a saturated water injection unit 120 for injecting saturated water in a liquid state into a container S containing rice grains, and saturated water by adjusting the pressure inside the chamber unit 110. By providing a pressure control unit 130 for inducing phase change to sterilize rice grains by phase change with steam, it is possible to increase the sterilizing power while reducing the steam consumption and sterilization time used to sterilize the rice grains.

The present embodiment has been described in detail with reference to the drawings, but the scope of rights of the present embodiment is not limited to the above-described drawings and description.

As described above, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

110: chamber unit 111: chamber body portion
112: first wall 113: second wall
114: third wall 114a: tray support member
115: separation space 116: tray moving support
116a: support body 116b: rotating roller
117: heating unit 118: door unit
120: saturated water injection unit 121: saturated water injection nozzle unit
122: saturated water supply pipe 123: saturated water generator
130: pressure control unit for inducing phase change 131: compression module
131a: Supply pipe for compression 131b: Compressor
133: exhaust module 133a: discharge pipe
133b: discharge valve 140: steam supply unit
141: steam injection
143: supply piping 144: supply piping
145: circulation piping 146: steam ejector
146a: spray nozzle 146b: suction chamber
146c: Diffuser 148: Decompression unit for steam generation
151: discharge line 152: bypass line
F: Container entrance P: Storage space
T: Tray S: Container
H: Wall support member CV: Open / close valve
GV: Flow control valve

Claims (16)

A chamber unit in which a receiving space in which a container containing rice grains is arranged is provided;
A saturated water injection unit connected to the chamber unit and injecting saturated water in a liquid state into the container; And
Instantaneous rice production apparatus connected to the chamber unit, comprising a pressure control unit for inducing a phase change to sterilize the rice grains by changing the pressure inside the chamber unit to phase change the saturated water into steam. According to claim 1,
The saturated water injection unit,
A saturated water injection nozzle unit disposed in an upper region of the container and discharging the saturated water;
A saturated water supply pipe connected to the chamber unit and coupled to the saturated water injection nozzle part to supply the saturated water to the saturated water injection nozzle part; And
Instant rice production apparatus is connected to the saturated water supply pipe, including a saturated water generator for generating the saturated water. According to claim 1,
The chamber unit,
A chamber body part communicating with the accommodation space in one end area and having a container entrance through which the container is connected; And
An instant rice manufacturing apparatus including a door portion that is rotatably coupled to the chamber body portion and opens and closes the container entrance. According to claim 3,
The chamber body portion,
A first wall forming an outer wall of the chamber body;
A second wall positioned inside the first wall and spaced apart from the first wall to be spaced apart; And
The instant rice manufacturing apparatus is disposed inside the second wall, and includes a third wall forming the accommodation space. According to claim 4,
Instantaneous rice production apparatus, characterized in that the space is formed in a vacuum atmosphere. According to claim 4,
The third wall is formed by protruding from the inner wall surface of the third wall is provided with a tray support member for supporting the tray loaded with the container, characterized in that the instant rice manufacturing apparatus. The method of claim 6,
The chamber body portion,
The instant rice manufacturing apparatus which is connected to the third wall, and further includes a tray moving support portion for slidingly supporting the tray. The method of claim 7,
The support for moving the tray,
A support body coupled to the inner wall surface of the third wall; And
Instant rice manufacturing apparatus comprising a rotating roller rotatably coupled to the support body. According to claim 4,
The chamber body portion,
Instant rice manufacturing apparatus is coupled to the third wall, further comprising a heating unit for heating the accommodation space. According to claim 1,
Pressure control unit for induction of phase change,
A compression module connected to the chamber unit and injecting air into the accommodation space; And
An instant rice manufacturing apparatus which is connected to the chamber unit and includes an exhaust module that discharges air from the receiving space to the outside. According to claim 1,
The instant rice manufacturing apparatus connected to the chamber unit, further comprising a steam supply unit for supplying steam to the rice grains. The method of claim 11,
The steam supply unit,
A steam injection part disposed in an upper region of the container and spraying the steam;
A steam supply pipe part connected to the chamber unit and coupled to the steam injection part to supply the steam to the steam injection part; And
Instantaneous rice production apparatus connected to the saturated water injection unit and connected to the steam supply pipe, a steam generating pressure reducing unit for lowering the pressure of the saturated water to phase-change the saturated water into the steam. The method of claim 12,
The steam injection unit, the instant rice manufacturing apparatus, characterized in that disposed in the upper region of the container. The method of claim 13,
Instantaneous rice manufacturing apparatus, characterized in that the steam injection portion is made of a porous (porous) material. The method of claim 12,
The steam supply pipe section,
A supply pipe connected to the steam generating pressure reducing unit;
An air supply pipe connected to the steam injection unit;
A circulation pipe connected to the chamber unit; And
It is connected to the supply pipe, the supply pipe and the circulation pipe, and includes a steam ejector that injects the steam supplied from the supply pipe into the supply pipe and induces the steam inside the chamber unit to flow into the circulation pipe Instant rice manufacturing equipment. The method of claim 15,
The steam ejector,
A suction chamber in which an injection nozzle for spraying the steam supplied from the supply pipe is disposed and an internal space communicating with the circulation pipe is provided; And
An instant rice manufacturing apparatus comprising a diffuser connected to the supply air pipe and communicating with the interior space of the suction chamber.

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