JP4065211B2 - Cooking equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for cooking with generation of steam, such as boiling food in hot water or steaming food in steam. In particular, the present invention relates to a cooking device that takes measures against environmental deterioration in the kitchen caused by steam.
[0002]
[Prior art and problems to be solved by the invention]
A boiled noodle machine will be described as an example. Boiled noodle machines are installed in kitchens of restaurants that serve udon, ramen, spaghetti and other menu items. This boiled noodle machine has a large main body, and a noodle basket containing a predetermined amount of noodles is placed in a hot water tank of the main body, and the noodles are boiled for a predetermined time. The restaurant has a large hot water bath and a large number of noodle baskets to serve many customers. The amount of hot water in such a boiled noodle machine is about 40 to 90 liters.
[0003]
When boiled noodles with such a boiled noodle machine, when the noodles are boiled, the noodles absorb the hot water, or when raising the noodles, the hot water accompanies with the noodles and the amount of hot water in the bath gradually decreases . Moreover, since the temperature of hot water is as high as 100 ° C. and the capacity is large, the amount of steam evaporated from the hot water tank is large. As an example, when the power of the boiled noodle machine is 9 kW, 13 to 14 liters of hot water evaporates in one hour. For this reason, hot water is always supplied to keep the amount of hot water in the hot water bath almost constant. The amount of hot water is, for example, about 600 milliliters per minute, and the temperature of the hot water is about 26 to 50 ° C.
[0004]
By the way, as above-mentioned, when 13-14 liters of hot water evaporates in 1 hour, vapor | steam cannot be discharged | emitted only with the ventilation fan with which the kitchen is equipped, but it fills in the kitchen. Such a large amount of steam may worsen the environment in the kitchen, cause condensation and may cause discomfort to the cook. Moreover, since the temperature in the kitchen rises, the energy of the air conditioner such as cooling is consumed excessively.
[0005]
For this reason, an apparatus for recovering the steam from the noodle machine by using such a rice cake has been proposed.
In such a steam recovery apparatus, there is one in which a hollow flat nozzle is installed above a cooking unit, and indoor air is passed through the nozzle (see, for example, Patent Document 1). In this apparatus, on the lower surface of the nozzle, the steam hitting the same surface exchanges heat with the indoor air sent into the nozzle, and the vapor condenses on the lower surface of the nozzle. Condensed water (condensate) is sent along a nozzle to a water receiver.
In addition, there is a steam recovery apparatus including a cooling chamber that recovers steam generated from a food container (see, for example, Patent Document 2). Cold air is sent from a cold air fan to the cooling chamber of this device to exchange heat with the steam, and condenses the steam.
[0006]
Furthermore, there is also one in which the steam generated from the food container is passed through water filled in the heat exchange device, and the steam is condensed at this time (for example, see Patent Document 3). In addition, there is also a type in which steam or steam generated from a food container flows in the lateral direction and is sucked into a passage (see, for example, Patent Document 4). The steam is condensed by showering the steam in the passage.
[0007]
[Patent Document 1]
Japanese Patent Publication No. 1-28859
[Patent Document 2]
Japanese Patent Laid-Open No. 3-30728
[Patent Document 3]
JP-A-3-2131613
[Patent Document 4]
JP-A-7-327824
[0008]
An object of this invention is to provide the cooking apparatus provided with the apparatus which can collect | recover the vapor | steam and steam which generate | occur | produce at the time of cooking efficiently, without consuming much energy.
[0009]
[Means for Solving the Problems]
  In order to solve the above problems, the cooking apparatus of the present invention boiles food in hot water.A hot water tank 5 in which hot water is poured, and a main body 3 having heating means disposed below or below the hot water tank 5;
  Above the hot water tank 5, a steam recovery device 10 fixed to the upper part of the wall 7 extending upward from the back wall of the main body 3;  A cooking device 1 comprising:  The steam recovery apparatus 10 is
  The lower surface is disposed in one casing 11 that opens facing the hot water bath 5.  The water bath 5An exhaust passage through which the exhaust gas containing the steam generated in is guided, and placed in the exhaust passage,It consists of a number of pipes 77 through which tap water is passed.Heat exchange between tap water and steam through a partition wallAnd condensate the steam on the outsideWater-steam heat exchanger71When, Air-steam heat exchange in which the exhaust containing steam and the air flow in the kitchen chamber entering from the vent 15 exchange heat through the top plate 113 placed in the exhaust passage on the downstream side of the heat exchanger 71. And  An exhaust port 19 for discharging the air flow through the air-steam heat exchanger mixed with the exhaust gas containing the steam;  WithIt is characterized by that.
  By exchanging heat between tap water (average water temperature of about 25 ° C.) and steam, the steam removal rate can be increased even in a limited space. Moreover, it does not use a device such as a refrigerator that requires energy, and is energy-saving and economical. In addition, it can be expected that the humidity in the exhaust gas is kept low as compared with a device for passing steam into water or a device for showering steam.
  As described above, since steam can be efficiently collected, the environment in the kitchen is not deteriorated, and energy saving of air conditioning equipment such as cooling can be achieved.
[0010]
In this invention, the said heat exchanger consists of many pipes which let water flow inside or outside, and can condense the said steam on the outer surface or inner surface of this pipe. In this case, commercially available pipes can be easily combined in parallel to simplify the structure. The pipe may have a fin. The shape of the pipe is not limited to a circle. Note that a plurality of partition walls may be provided between parallel plates.
[0011]
In the present invention, if the steam-condensed water is returned to the cooking unit, consumption of hot water in the hot water tank can be reduced. This condensate may be at a considerably high temperature (for example, 50 ° C. or higher), and the amount of hot water that evaporates is large. Thereby, consumption of water and energy can be reduced.
[0012]
In the present invention, if water that has passed through the heat exchanger is supplied to the cooking unit, water for heat exchange can be used effectively. Since this water may be at a considerably high temperature (for example, 50 ° C. or higher), it can be used as a hot water. Thereby, consumption of water and energy can be reduced.
[0013]
In the present invention, if it further comprises an air-steam heat exchanger placed in the exhaust passage on the downstream side of the heat exchanger for exchanging heat between the exhaust gas containing steam and the air flow via a partition wall, The remaining steam that cannot be recovered by the heat exchanger can also be recovered, and the efficiency of steam removal is further increased.
[0014]
In the present invention, if the air passing through the air-steam heat exchanger is mixed with the exhaust containing the steam and discharged into the room, the humidity of the exhaust is further reduced, the glass is not clouded, and the environment is deteriorated. do not do.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, it demonstrates, referring drawings.
FIG. 1 is a diagram schematically illustrating the structure of the cooking device (boiled noodle machine) according to the first embodiment of the present invention.
A large amount of hot water is poured into the bath 5 of the main body 3 of the boiled noodle machine 1. A plurality of noodle baskets 7 are put in this hot water, and spaghetti and ramen can be boiled. A heating means (not shown) such as an electric heater or a gas burner is provided below (or below) the hot water bath 5.
A steam recovery device 10 is provided above the hot water bath 5. This steam recovery apparatus 10 is fixed to the upper part of the wall 7 extending upward from the back wall of the main body 3.
[0016]
First, a steam recovery experiment conducted in developing the steam recovery apparatus 10 provided in the boiled noodle machine 1 will be described.
FIG. 2 is a front view schematically showing the structure of an experimental machine of the steam recovery apparatus.
FIG. 3 is a side view of the steam recovery experimental machine of FIG.
The steam recovery experiment machine 50 includes a hot water tank 51, a water cooling pipe unit 61, an air cooling unit 101, and an exhaust unit 141 arranged in order from the bottom. The water cooling pipe unit 61 is provided with a water-steam heat exchanger (pipe assembly 71), and the air cooling unit 101 is provided with an air-steam heat exchanger (top plate 113) (details will be described later). ). Of the steam generated in the hot water tank 51, most of the water is heat-exchanged by both units 61 and 101 to condense, and the remaining exhaust is discharged from the exhaust unit 141.
[0017]
The hot water tank 51 has a rectangular parallelepiped box shape, and is placed on the floor surface by four legs 53. The dimensions of the hot water tank 51 are 520 mm in width, 350 mm in depth, and 240 mm in height. A heater 55 is provided at the bottom of the hot water tank 51. The heater 55 has an output of 9 kW, which corresponds to a heater for a boiled noodle machine that can boil spaghetti and ramen for 4 to 6 meals at the same time. When the heater 55 generates heat, the water in the hot water tank is heated and steam is generated. A drainage valve 57 is provided below the side wall of the hot water tank 51.
[0018]
The water cooling pipe unit 61 is attached to the upper part of the hot water tank 51. The unit 61 has a rectangular parallelepiped box-shaped casing 63 whose upper surface is open. The casing 63 has a width of 520 mm, a depth of 350 mm, and a height of 240 mm. Two exhaust ports 65 are opened in the bottom wall of the casing 63, and the inside of the casing 63 and the inside of the hot water tank 51 communicate with each other through the exhaust port 65. The exhaust ports 65 are arranged in the width direction of the bottom wall and slightly forward in the depth direction. A plate 67 is disposed above each exhaust port 65. The plate 67 is circular, and both sides are folded slightly upward along the center line. The lower part of the side wall of the casing 63 is connected to a drain pipe 112 connected to the hot water tank 51 via a reducing water valve 69.
[0019]
FIG. 4 is a perspective view for explaining the structure inside the water-cooled pipe unit.
5A and 5B are diagrams showing the structure of the water-steam heat exchanger, in which FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view.
A pipe assembly (water-steam heat exchanger) 71 is disposed inside the casing 63 of the water-cooled pipe unit 61. The pipe assembly 71 is detachably mounted on a rectangular frame-shaped frame 73 (see FIG. 4) provided on the inner wall of the casing 63.
As shown in FIG. 5, the pipe assembly 71 includes a large number (in one example, 65) of pipes 77 spanned between two parallel headers 75. Each pipe 77 is arranged in parallel between the headers 75, and each header 75 and each pipe 77 are orthogonal to each other. The cross-sectional shape of the header 75 is a quadrangle, the length of one side is 30 mm, and the length is 476 mm. The cross-sectional shape of the pipe 77 is circular, the diameter is 8 mm, and the length is 208 mm. The header 75 is made of stainless steel or the like, and the pipe 77 is made of brass in this experimental apparatus. The pipe 77 may be a commercially available stainless steel pipe.
The shape of the pipe is not limited to a circle, and a plurality of partition walls may be provided between parallel plates.
[0020]
As shown in FIG. 5B, each pipe has zigzags arranged in two rows on one side of the header 75, and the inside of each header 75 and the inside of each pipe 77 communicate with each other. The distance between the pipes 77 arranged on a straight line is 6 mm as an example, and the distance between the pipes 77 arranged obliquely is 5.89 mm as an example.
[0021]
A socket 79A is welded to the lower surface of one header 75A, and a socket 79B is also welded to the side surface of the other side pipe 75B.
[0022]
As shown in FIGS. 3 and 4, the pipe assembly 71 is arranged such that the pipe 77 is inclined upward toward the back side. That is, the height of each header 75 is different, and the pipe 77 is inclined in the vertical direction by the difference in height. The inclination angle is 25 ° as an example. For this reason, the frame 73 on which the pipe assembly 71 is placed is also tilted upward toward the inner side of the casing 63. As shown in FIG. 4, one long side 73 a of the frame 73 is horizontally fixed to the front inner wall of the casing 63, and two short sides 73 c are formed on each side inner wall of the casing 63 at both ends of the long side 73 a. It is fixed by being inclined upward in the back direction. Each short side 73 c does not reach the inner wall of the casing 63. The other long side 73b of the frame 73 is stretched horizontally between the upper ends of the short sides 73c. That is, a gap is opened between the long side 73 b and the inner wall of the casing 63. Then, one header 75A of the pipe assembly 71 is placed on the side 73a on the front inner wall side, and the other header 75B is placed on the spanned side 73b.
[0023]
The cross-sectional shape of the frame 73 is L-shaped, the vertical surface is welded to the inner wall of the casing 63, and the pipe assembly 71 is placed on a horizontal plane. The frame 73 has holes through which the sockets 79 protrude when the pipe assembly 71 is placed. A pipe 81 extending from the hole to the side wall of the casing 63 is provided. As shown in FIG. 2, the pipe 81A extending from the socket 79A on the lower header 75A side is connected to the water supply pipe 85, and the pipe 81B extending from the socket 79B on the upper header 75B side is connected to the drain pipe 87. The drain pipe 87 is branched into a branch pipe 89 extending to the hot water tank 51 on the way.
In FIG. 2, the pipes 81 </ b> A and 81 </ b> B extend from the same side of the pipe assembly 71, but actually extend from another side as shown in FIG. 4.
[0024]
As shown in FIG. 3, upper and lower separators 91 and 93 are provided inside the casing 63 of the water-cooled pipe unit 61. The upper and lower separators 91 and 93 form a steam passage R1 that extends from the exhaust port 65 on the bottom wall of the casing 63 while meandering toward the substantially center of the upper surface. A pipe assembly 71 is disposed in the meandering passage R1. The upper separator 91 extends from the upper part of the inner front wall of the casing to the upper header 75B, and extends downward from the pipe through the gap toward the inner wall. The lower separator 93 rises diagonally upward and forward from slightly behind the exhaust port 65 on the bottom wall of the casing, and further tilts upward toward the exhaust port 65.
[0025]
Next, the air cooling unit 101 will be described with reference to FIGS. 2 and 3.
The air cooling unit 101 has a rectangular parallelepiped box-shaped casing 103 whose upper surface is open. The casing 103 has a width of 520 mm, a depth of 350 mm, and a height of 290 mm. As shown in FIG. 2, a vent hole 105 is provided at substantially the center of the left wall of the casing 103. A fan (not shown) is provided outside the vent 105.
An exhaust port 107 is opened in the bottom wall of the casing 103, and the inside of the casing 103 and the inside of the water-cooled pipe unit 61 communicate with each other through the exhaust port 107. The exhaust port 107 is located slightly on one side (the left side in FIG. 2) of the bottom wall, and is disposed substantially at the center in the depth direction. A plate 109 is disposed above the exhaust port 107. The plate 109 is circular, and both sides are folded upward slightly along the center line. The lower part of the side wall of the casing 103 is connected to a drain pipe 112 connected to the hot water tank 51 via a reducing water valve 111.
[0026]
As shown in FIG. 2, a cold air passage R <b> 2 and a steam passage R <b> 3 extending obliquely upward from the left wall toward the right wall are provided in the casing 103. Both passages are positioned vertically, with the upper side being a cold air passage R2 and the lower side being a steam passage R3. The inclination direction of both passages is a direction orthogonal to the inclination direction of the pipe 77 of the water-cooled pipe unit 61 described above. Both passages R2 and R3 are partitioned by a wave-like top plate 113, the cool air passage R2 is formed between the upper partition plate 115 and the top plate 113, and the steam passage R3 is formed by the top plate 113 and the lower partition plate 117. Formed between.
[0027]
FIG. 6 is a perspective view showing the shape of the top board.
7 is a view showing the shape of the top plate of FIG. 6, FIG. 7 (A) is a plan view, FIG. 7 (B) is a front view, and FIG. 7 (C) is a side view.
The top plate 113 is made of SUS430 or the like and has dimensions of 403 mm in length and 299 mm in width. The top plate 113 includes a flat outer edge 121 and a bottom portion 123 that is surrounded by the outer edge 121 and is lower than the outer edge. The width of the outer edge 121 is 16 mm, and the dimension of the bottom 123 is 267 mm in length and 371 mm in width. The difference in height between the outer edge 121 and the bottom 123 is 10 mm. As shown in FIG. 7B, a plurality of grooves 125 extending in the vertical direction (short direction of the top plate 113) are formed in the bottom portion 123. The angle between the valley and the peak of the groove 125 is 90 °, and the width of the groove 125 is 11 mm. The bottom 123 where the groove 125 is formed is a substantial air-steam heat exchange part. The surface area of the bottom 123 is 1,758 cm.²It is.
[0028]
As shown in FIG. 2, the top plate 113 is arranged so that one short side is fixed below the vent hole 105 on the left inner wall of the casing 103 and extends obliquely upward in the right direction in the casing 103. . The direction of the groove 125 is orthogonal to the inclination direction. The inclination angle is 25 ° as an example. The other short side of the top plate 113 extends partway through the casing 103 and is connected to the extension plate 129 therefrom. The extension plate 129 extends straight upward.
[0029]
As shown in FIG. 2, the cold air passage R <b> 2 is formed between the upper partition plate 115, the top plate 113, and the extension plate 129. The passage extends obliquely upward in the casing from the vent hole 105 on the left wall of the casing, and extends straight up from the middle to the exhaust port 131. The exhaust ports 131 are provided at two locations near the right wall of the casing, on the front side and the back side in the depth direction of the casing.
On the other hand, the steam passage R3 is formed between the top plate 113, the extension plate 129, and the lower partition plate 117. The passage extends obliquely upward in the casing in the right direction from the surface including the exhaust port 107 on the casing bottom wall, and extends straight up from the middle to the exhaust port 133. The exhaust port 133 is provided in the center of the casing in the depth direction from the right wall of the casing. A separator 135 extending obliquely downward from the top plate 113 toward the back is provided between the oblique passage and the upper passage of the steam passage.
[0030]
The exhaust unit 141 includes a casing 143 having a substantially rectangular parallelepiped shape with an open bottom surface. The casing 143 has a width of 520 mm, a depth of 350 mm, and a height of 250 mm. An exhaust port 145 is provided on the upper wall of the casing 143. The exhaust port 133 of the steam passage of the air cooling unit 101 extends to almost the center of the casing 143.
[0031]
Next, with reference to FIGS. 2 and 3, the operation of the steam recovery apparatus 50 will be described.
When a predetermined amount of water is put into the hot water tank 51 and the heater is operated, the hot water is boiled and steam is generated. As shown by the arrows in the figure, the steam enters the unit through an exhaust port 65 on the casing bottom wall of the water-cooled pipe unit 61. The steam that has flowed into the water-cooled pipe unit 61 from the exhaust port 65 flows upward while meandering between the upper and lower separators 91 and 93 (see FIG. 3). During this time, it passes between the pipes 77 of the pipe assembly 71.
[0032]
In the pipe assembly 71, tap water is supplied from the water supply side socket 81A. Water flows in the lower header 75A and in the pipe 77 upward. And the water which flowed in each pipe 77 joins with upper header 75B, and is drained from drain side socket 81B. At this time, since each socket is disposed on each side of the pipe assembly 71, water flows evenly in all the pipes 77. When the steam passes between the pipes 77, the steam and the tap water in the pipe 77 exchange heat through the wall (partition wall) of the pipe 77. A part of the water contained in the steam is condensed.
In this example, the pipe assembly 71 is arranged so that tap water flows upward from the lower header 75B through the pipe 77 toward the upper header 75A, but from the upper header 75A. You may make it flow downward toward the lower header 75B. By flowing the tap water upward as in this example, it is possible to expect an effect that the water flows through the pipe 77 as a whole.
[0033]
Here, in the pipe assembly 71, as described above, the plurality of pipes 77 are arranged in a zigzag manner, and the entire surface area is increased. For this reason, there are many areas which a vapor | steam and the surface of the pipe 77 contact, and the efficiency of heat exchange can be made high. In order to further increase the heat exchange rate, the pipe 77 may be provided with fins.
[0034]
Thereafter, the steam containing moisture remaining without being condensed in the heat exchanger (pipe assembly 71) of the water cooling pipe unit 61 enters the steam passage R3 in the air cooling unit 101 through the exhaust port 107. Room air is sent from the vent 105 to the cold air passage R2 of the air cooling unit 101 by a fan (not shown), and the inside of the cold air passage R2 and the top plate 133 are kept at substantially room temperature. The steam in the steam passage R3 exchanges heat with the air in the cold air passage R2 through the top plate 113 (partition wall). And a part of the steam is condensed. Here, the top plate 113 has a wavy shape as described above, and has a large surface area. For this reason, the water | moisture content which remains in steam can be heat-exchanged.
[0035]
The cold air that has passed through the cold air passage R2 is sent from the exhaust port 131 to the exhaust unit 141. At this time, the air is heat-exchanged and the temperature is slightly increased. Then, a considerable portion of the water is condensed from the steam passage R3, and the warm air from which the water has been removed is sent from the exhaust port 133 to the exhaust unit 141. At this time, since the exhaust passage distance is increased by the separator 135 provided in the steam passage R3, the temperature of the exhaust is lowered during this time. The cool air and the exhaust are mixed in the exhaust unit 141 and exhausted from the exhaust port 145. At this time, since the cold air is taken in by the fan and has a high flow velocity, both the low-speed exhaust and the low-speed exhaust can be exhausted, and the circulation of the air in the device 50 can be accelerated.
[0036]
The hot water condensed by the water cooling pipe unit 61 and the air cooling unit 101 is returned from the reducing valves 69 and 111 to the hot water tank 51 through the drain pipe 122. Further, hot water that flows through the pipe assembly 71 and exchanges heat with steam and is heated is returned to the hot water tank 51 through the pipes 87 and 89. These hot waters are high in temperature and suitable for hot water.
[0037]
The results of a steam recovery experiment using this steam recovery apparatus 50 will be described.
First, the experimental conditions are explained:
The amount of water in the water bath 51; 24 liters,
Heater 55 output; 9 Kw,
Steam generation amount from the water bath 51; 13.4 liters / h,
Room temperature; 23.5 ° C.
Wind speed of the cool air flowing into the cool air passage R2 (measurement point P1); 3.5 m / s,
The temperature of water supplied to the pipe assembly 71 (measurement point P2); 27.0 ° C.,
The amount of water supplied to the pipe assembly 71: 1.4 liter / m.
[0038]
The temperature of each part after the passage of time is shown below:
The temperature of the air exhausted from the front exhaust port 131 of the cold air passage R2 in the exhaust unit 141 (measurement point P3); 29.1 ° C.,
The temperature of the air exhausted from the rear exhaust port 131 of the cold air passage R2 in the exhaust unit 141 (measurement point P4); 23.5 ° C.,
The temperature of water drained from the pipe assembly 71 (measurement point P5); 97.3 ° C.,
The temperature of the steam passage R3 in the air cooling unit 101 (measurement point P6); 78.0 ° C.,
The temperature of the air exhausted from the exhaust port 133 of the steam passage R3 in the exhaust unit 141 (measurement point P7);
Temperature of air exhausted from the exhaust port 145 of the exhaust unit 141; 25 ° C.
[0039]
The amount of water reduced by the water cooling pipe unit 61 and the air cooling unit 101 was 11.7 liters. Among these, the amount of reducing water in the water cooling pipe unit 61 is 11.3 liters, and the amount of reducing water in the air cooling unit 101 is 0.4 liters. From this, the reduction rate of water was 87.3 (= 11.7 / 13.4).
[0040]
Thus, by using both the water cooling pipe unit 61 and the air cooling unit 101, a high reduction rate (87.3%) can be obtained, and most of the water in the steam generated from the hot water bath can be removed. Further, the temperature of the exhaust can be lowered (about 25 ° C.). Thus, the environment in the kitchen is not deteriorated. Moreover, the amount of hot water to be newly poured can be reduced by returning the hot water that has been condensed with steam or the hot water heat-exchanged by the pipe assembly of the water-cooled pipe unit to the hot water tank.
[0041]
Next, the structure of the steam recovery device of the cooking device (boiled noodle machine) according to the embodiment of the present invention will be described with reference to FIG.
The steam recovery apparatus 10 has the same function as the steam recovery experimental machine 50 shown in FIG. 2, but is compactly packed so that it can be installed in the noodle machine 1 with a boil. That is, the steam recovery apparatus 10 is provided with a pipe assembly 71 in the water-cooled pipe unit and a top plate 113 in the air-cooling unit in one casing 11. The casing 11 is fixed to the upper part of the wall 7 extending upward from the back wall of the main body 3. The structure of the pipe assembly 71 and the top plate 113 is the same as the structure of the steam recovery apparatus pipe assembly and the top plate of FIG.
[0042]
A reducing water passage 13 is provided at the lower end of the front inner wall of the casing 11. The reduced water passage 13 is connected to the hot water tank 5 through a pipe (not shown). A ventilation hole 15 is opened in the upper part of the front wall of the casing 11, and the lower surface is opened facing the hot water bath 5. A fan (not shown) is provided behind the vent hole 15. In the casing 11, the steam guide 12, the pipe assembly 71 (see FIGS. 4 and 5), the partition wall 17, and the top plate 113 (see FIGS. 6 and 7) are inclined upward from the bottom in order from the bottom. So as to form a meandering vapor passage.
[0043]
The steam guide 12 has a plate shape and is disposed so as to incline upward from the lower end of the front wall of the casing 11 toward the back wall. A gap is open between the back end of the guide 12 and the back wall 7.
[0044]
The pipe assembly 71 is disposed so as to incline upward from the front wall above the steam guide 12 of the casing 11 toward the back wall. Above the pipe assembly 71, the partition wall 17 is disposed so as to incline downward from the back wall 7 toward the front. A gap is opened between the front end of the partition wall 17 and the front wall of the casing 11. Above the partition wall 17, the top plate 113 is disposed so as to be inclined upward from the lower side of the vent 15 on the front wall of the casing toward the inner wall 7. A passage between the top plate 113 and the partition wall 17 is connected to the exhaust port 19 on the back side of the upper wall of the casing. With such a structure, a steam passage is formed between the pipe assembly 17, the upper and lower surfaces of the partition wall 17, and the top plate 113.
In the steam recovery apparatus 10, the inclination direction of the pipe assembly 71 and the inclination direction of the top plate 113 are the same.
[0045]
A passage between the top plate 113 and the upper wall of the casing 11 serves as a cool air passage through which indoor air enters from the vent 15. The cold air passage is connected to the exhaust port 21 on the back side of the upper wall of the casing.
[0046]
The steam generated from the hot water tank 5 flows along the steam guide 12 to the back side, and from the gap between the back end of the guide 12 and the back wall 7 to the space between the pipe assembly 71 and the steam guide 12. enter. At this time, the steam hits the entire pipe assembly 71. Steam enters the steam passage through between the pipe assemblies 71 of the casing and flows upward in the passage. While the steam passes between the pipes of the pipe assembly 71, the steam exchanges heat, and a part of the steam is condensed. The condensed water flows along the surface of the pipe to the reducing water passage 13 on the front inner wall of the casing, and is sent to the hot water tank 5 through the pipe.
[0047]
The steam that has passed through the pipe assembly 71 then contacts the lower surface of the top plate 113. Here, the water remaining in the steam exchanges heat and condenses. The condensed water flows along the back surface of the top plate 113 and flows into the reducing water passage 13 on the front inner wall of the casing, and is sent to the hot water tank 5 through the piping. Further, the water that has passed through the pipe assembly 71 and has undergone heat exchange is also sent to the hot water bath 5.
[0048]
【The invention's effect】
As is clear from the above description, according to the present invention, since most of the water in the steam generated from the hot water bath can be removed, deterioration of the environment in the kitchen can be prevented. And since the removed water (condensed water) can be used as hot water, water consumption can be reduced.
[Brief description of the drawings]
FIG. 1 is a diagram schematically illustrating the structure of a cooking apparatus (boiled noodle machine) according to a first embodiment of the present invention.
FIG. 2 is a front view schematically showing the structure of an experimental machine for a steam recovery apparatus.
FIG. 3 is a side view of the steam recovery experimental machine of FIG. 2;
FIG. 4 is a perspective view for explaining the structure inside the water-cooled pipe unit.
5A and 5B are diagrams showing the structure of a water-steam heat exchanger, FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view.
FIG. 6 is a perspective view showing the shape of the top board.
7 is a view showing the shape of the top plate of FIG. 6, FIG. 7 (A) is a plan view, FIG. 7 (B) is a front view, and FIG. 7 (C) is a side view.
[Explanation of symbols]
1 Boiled noodle machine 3 Body
5 Hot water bath 7 Noodle basket
10 Steam recovery device 11 Casing
12 Steam guide 13 Reduced water passage
15 Ventilation hole 17 Bulkhead
19 Exhaust port 21 Exhaust port
50 Steam recovery experiment machine 51 Hot water tank
53 legs 55 heater
57 Drain valve
61 Water-cooled pipe unit 63 Casing
65 Exhaust port 67 Plate
69 Valve for reducing water 71 Water-steam heat exchanger (pipe assembly)
73 frame 75 header
77 Pipe 79 Socket
81 Piping 85 Water supply pipe
87 Drain pipe 89 Branch pipe
91 Upper separator 93 Lower separator
101 Air cooling unit 103 Casing
105 Vent 107 Exhaust
109 Plate 111 Valve for reduced water
112 Drain pipe 113 Air-steam heat exchanger (top plate)
115 Upper partition plate 117 Lower partition plate
121 Outer edge 123 Bottom
125 groove 129 extension plate
131 Exhaust port 135 Separator
141 Exhaust unit 143 Casing
145 Exhaust port

Claims (5)

A hot water tank 5 in which hot water for boiling food is poured in hot water, and a main body 3 having heating means disposed below or below the hot water tank 5;
Above the hot water tank 5, a steam recovery device 10 fixed to the upper part of the wall 7 extending upward from the back wall of the main body 3;
A cooking device 1 comprising:
The steam recovery apparatus 10 is
The lower surface is disposed in one casing 11 that opens facing the hot water bath 5.
An exhaust passage through which exhaust containing steam generated in the hot water bath 5 is guided;
The pipe 77 has a large number of pipes 77 which are placed in the exhaust passage and through which tap water is passed, and the tap water and steam exchange heat through the partition walls of the pipe 77 to condense the steam on the outer surface. A water-steam heat exchanger 71 ,
Air-steam heat exchange in which the exhaust containing steam and the air flow in the kitchen chamber entering from the vent 15 exchange heat through the top plate 113 placed in the exhaust passage on the downstream side of the heat exchanger 71. And
An exhaust port 19 for discharging the air flow through the air-steam heat exchanger mixed with the exhaust gas containing the steam;
Cooking apparatus comprising: a. The cooking apparatus according to claim 1, wherein water passed through the heat exchanger 71 is supplied to the hot water bath 5 . In the casing 11, in order from the bottom, a steam guide 12 for flowing the steam generated from the hot water bath 5 to the upper rear side, a pipe assembly 71 as the water-steam heat exchanger, and an upper part of the pipe assembly 71. The partition wall 17 and the top plate 113 disposed above the partition wall 17 are disposed so as to incline upward toward the back side to form a meandering exhaust passage. The cooking apparatus according to 1 or 2. The cooking apparatus according to claim 3, wherein the pipe assembly (71) includes a plurality of pipes (77) arranged in a zigzag manner. The cooking apparatus according to claim 3, wherein the top plate 113 has a wave shape.

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