Steam recovery device and heating device unit

Abstract

To provide a steam recovery device that can improve steam collection rate by suppressing increase in a size of a device.SOLUTION: A steam recovery device 1 includes a steam condensation part 60. The steam condensation part includes: a first passage 61 through which steam S1 passes; and a second passage 62 installed in the first passage while being partitioned from the first passage and through which peripheral air A2 of the steam recovery device passes.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present invention relates to a steam recovery device and a heating device unit.

Background Art

[0002] A steam convection oven (hereinafter referred to as a heating device) that cooks food using steam is known. The heating device heats and cooks food with steam and hot air. The heating device has a steam discharge port provided on the top surface of the device for discharging the steam and hot air generated during cooking.

[0003] The steam discharged from the steam discharge port of the heating device during cooking or the steam discharged by opening the door of the heating device after cooking is discharged into the kitchen space. Therefore, it is desirable to place the heating device directly below or near the ventilation equipment. However, depending on the kitchen environment, it may not be possible to install the heating device in such a location. At this time, there is a problem that condensation occurs on the ceiling of the facility due to the discharged steam, deteriorating the kitchen environment. Therefore, it is required to recover the steam.

[0004] In relation to this, for example, in Patent Document 1 below, a steam recovery device is disclosed that connects a ventilation device above a heating device to recover the steam discharged from the heating device. In the configuration of Patent Document 1, a plurality of baffles are arranged inclined or vertically in the discharge hood to form a steam passage portion, and the steam is condensed in the steam passage portion and discharged as exhaust air from the outlet opening.

[0005] The steam recovery device disclosed in Patent Document 1 includes a steam condensation portion configured by arranging a large number of baffle plates in a labyrinth structure from near the hood inlet to immediately before the exhaust fan.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] The steam recovery system described above can capture steam and hot air generated when the cooking appliance door is opened and recover the steam within the system. However, to improve the steam capture rate, it is necessary to increase the number of baffle plates and lengthen the labyrinth passage, which results in a larger system and reduces the internal space of the system.

[0008] This invention was made to solve the above problems, and aims to provide a steam recovery device that can improve steam collection efficiency while suppressing the increase in the size of the device. [Means for solving the problem]

[0009] The above objectives of the present invention are achieved by the following means.

[0010] (1) A steam recovery device equipped with a steam condensation section, The aforementioned steam condensation section is The first passage through which the steam passes, A steam recovery device having a second passage provided within the first passage, separated from the first passage, through which the air surrounding the steam recovery device passes.

[0011] (2) The steam recovery apparatus according to (1), wherein the first passage comprises a region in which a plurality of baffle plates are arranged alternately, and the steam passes through in a meandering manner.

[0012] (3) The aforementioned steam condensation section is The steam recovery apparatus according to (1) or (2), further comprising a blower fan that supplies the ambient air to the second passage.

[0013] (4) The steam recovery apparatus according to (3), wherein the flow velocity of the ambient air passing through the second passage, supplied by the blower fan, is 2.0 m / s or more.

[0014] (5) In order to discharge a portion of the steam generated from the heating device to the outside of the heating device, a connecting part is provided that is connected to a steam outlet on the heating device, The system further includes an exhaust fan for taking in the aforementioned steam, A steam recovery device according to any one of (1) to (4), configured such that the steam flow velocity at the connection point is 1.5 m / s or less when the exhaust fan is operating.

[0015] (6) The steam recovery apparatus according to any one of (1) to (5), wherein the second passage is configured to be continuous with at least two sides of the steam recovery apparatus.

[0016] (7) At least one surface of the steam recovery device has a body opening through which the steam and the surrounding air pass. The steam recovery apparatus according to any one of (1) to (6), wherein the second passage is located at least on the side on which the main body opening is provided.

[0017] (8) The first passage is configured such that a portion of the second passage passes through an area in which the plurality of baffle plates are arranged alternately. The first passage has an opening formed at one end in the left-right direction when viewed from the extending direction in which a part of the second passage extends, by a baffle plate through which the steam passes. The steam recovery apparatus according to (2), wherein an opening region through which the steam passes is formed at the other end in the left-right direction by another baffle plate adjacent to the first baffle plate.

[0018] (9) The steam recovery device according to (2) or (8), wherein a part of the second passage is formed so as to penetrate a region where the plurality of baffle plates of the first passage are arranged alternately.

[0019] (10) The steam recovery device according to (2), (8) or (9), wherein a plurality of the second passages are provided in a direction intersecting with a traveling direction of steam flowing along between one baffle plate and another baffle plate adjacent to the one baffle plate and a direction in which the one baffle plate faces the other baffle plate.

[0020] (11) The steam condensation part further has a connecting part connecting the plurality of second passages and the blower fan, The steam recovery device according to any one of (1) to (10), wherein one or more partition plates are provided in the connecting part so as to communicate with and be partitioned from the plurality of second passages respectively.

[0021] (12) (1) to (11) any one of the steam recovery device described above, and The heating device, and a heating device unit having the same.

[0022] (13) The heating device unit according to (12), wherein the heating device has a door that can be opened and closed at an opening of the heating chamber. [[Effect of the Invention]]

[0023] According to the steam recovery device configured as described above, since there is provided a first passage through which steam passes, and a second passage that is provided separately from the first passage within the first passage and through which air around the steam recovery device passes, it is possible to secure a heat exchange area while suppressing an increase in the size of the device, and the condensation of steam can be preferably promoted by the air around the steam recovery device. From the above, it is possible to provide a steam recovery device that can suppress an increase in the size of the device and improve the steam collection rate. [[Brief Description of the Drawings]]

[0024] [Figure 1] This is a perspective view showing a heating device unit according to an embodiment of the present invention. [Figure 2] This is a perspective view showing the steam recovery apparatus according to this embodiment. [Figure 3] This is a front view showing a steam recovery device according to this embodiment. [Figure 4] This is a perspective cross-sectional view along line 4-4 in Figure 3. [Figure 5] This is a cross-sectional view along line 4-4 in Figure 3. [Figure 6] This is a perspective view of the heating device unit according to this embodiment, as seen from the left side. [Figure 7] This figure corresponds to Figure 6, showing the steam recovery device according to this embodiment with the left side panel and hood removed. [Figure 8] This diagram illustrates the configuration of the steam condensation section of the steam recovery apparatus according to this embodiment. [Figure 9] This diagram illustrates the configuration of the steam condensation section of the steam recovery apparatus according to this embodiment. [Figure 10] This diagram illustrates the configuration of the steam condensation section of the steam recovery apparatus according to this embodiment. [Figure 11] This is a right side view showing the steam recovery device according to this embodiment. [Figure 12] This is a cross-sectional view along line 12-12 in Figure 11. [Figure 13] This is a perspective view showing the configuration of the steam condensation section of a modified steam recovery device. [Figure 14] This is a perspective view showing the configuration of a modified steam recovery device. [Modes for carrying out the invention]

[0025] Embodiments of the present invention will be described below with reference to Figures 1 to 12. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant explanations are omitted. Also, the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios.

[0026] Figure 1 is a perspective view showing a heating device unit 5 according to an embodiment of the present invention. Figure 2 is a perspective view showing a steam recovery device 1 according to this embodiment. Figure 3 is a front view showing the steam recovery device 1 according to this embodiment. Figure 4 is a perspective cross-sectional view along line 4-4 in Figure 3. Figure 5 is a cross-sectional view along line 4-4 in Figure 3. Figure 6 is a perspective view of the heating device unit 5 according to this embodiment, viewed from the left side. Figure 7 is a diagram corresponding to Figure 6, showing the steam recovery device 1 according to this embodiment with the left side panel 23 and hood section 30 removed. Figures 8 to 10 are diagrams illustrating the configuration of the steam condensation section 60 of the steam recovery device 1 according to this embodiment. Figure 11 is a right side view showing the steam recovery device 1 according to this embodiment. Figure 12 is a cross-sectional view along line 12-12 in Figure 11.

[0027] In the following description, when viewing the door 91 of the heating device 90 from the front, the left-right direction is referred to as the X direction, the depth direction of the heating device unit 5 is referred to as the Y direction, and the vertical direction is referred to as the Z direction (see Figure 1). Also, the right side in the X direction is considered the positive side, the back side in the Y direction is considered the positive side, and the top side in the Z direction is considered the positive side. Furthermore, in the following description, the air drawn in from the first air intake 32 and the second air intake 33 is referred to as "external air A1," and the air passing through the second passage 62 is referred to as "ambient air A2," and these are distinguished accordingly. Strictly speaking, they cannot be distinguished, but the "external air A1" drawn in from the first air intake 32 is room temperature air with a relatively low proportion of vapor because it is far from the heating device 90. The "external air A1" drawn in from the second air intake 33 is room temperature air with a relatively high proportion of vapor because it is close to the heating device 90. The "ambient air A2" passing through the second passage 62 is room temperature air with the lowest proportion of vapor because it is far from the door 91 of the heating device 90.

[0028] As shown in Figure 1, the heating device unit 5 according to this embodiment includes a heating device 90 and a steam recovery device 1. The configuration of the heating device 90 will be described below, but the following description is an example, and the configuration of the heating device 90 is not limited to the following configuration.

[0029] The heating device 90 cooks food by heating it with steam and hot air. The heating device 90 has a door 91 that can be opened and closed, and a steam outlet 92 (see Figure 7) for discharging steam and hot air generated during cooking. The steam outlet 92 is connected to the connection part 64 (see Figure 8) of the steam recovery device 1.

[0030] The door 91 is provided in the opening 90H on the front side of the heating device unit 5. The steam outlet 92 is provided on the top surface of the heating device 90.

[0031] During cooking in the heating device 90, the steam S1 inside the heating device 90 flows into the first passage 61 of the steam condensation section 60 (see Figures 7 to 10, etc.) described later, via the steam outlet 92 and the connection section 64. After cooking in the heating device 90, the steam S2 (see Figure 4) inside the heating device 90, which is discharged by opening the door 91, moves from the opening 90H to the positive side in the Z direction and flows into the hood section 30 described later.

[0032] As shown in Figures 1 to 12, the steam recovery device 1 comprises a housing body 10 and a blower 40 located inside the housing body 10. The following describes each component.

[0033] <Main enclosure 10> As shown in Figures 1 to 12, the housing body 10 has a housing section 20 that houses the blower 40 and a hood section 30 that is positioned adjacent to the negative side (front side) of the housing section 20 in the Y direction, and a steam condensation section 60 is provided inside the housing section 20.

[0034] <Housing body 20> As shown in Figures 1 to 11, the housing body 20 includes a front panel 21 on the front side, a right side panel 22 on the right side (positive side in the X direction) when viewed from the front, a left side panel 23 on the left side (negative side in the X direction) when viewed from the front, a rear panel 24 on the rear side, a top panel 25 on the top surface, an inclined panel 27 on the bottom surface through which condensation water flows, and a main air passage 28 provided inside the housing body 20 through which external air A1 flows from the intake section 80 to the exhaust section 25H.

[0035] As shown in Figure 4, the front panel 21 has a main body opening 21A which constitutes an intake section 80 that draws in outside air A1 from around the housing body 10.

[0036] Furthermore, as shown in Figure 4, the front panel 21 has a pair of vertical wall portions 21B that extend to the positive side in the Y direction when viewed from the positive side in the X direction. As shown in Figure 4, the lower vertical wall portion 21B has a plurality of through holes 21H (nine in Figure 4), and the main air passage 28 and the first passage 61 of the steam condensation section 60, which will be described later, are connected through the through holes 21H. The through holes 21H correspond to the outlet end 61E of the first passage 61.

[0037] Near the front panel 21, as shown in Figure 4, a mixing section 110 is provided to promote the mixing of external air A1 drawn in from the intake section 80 and steam S2 discharged from the heating device 90. In the mixing section 110, the steam S2 is mixed with the external air A1, causing its temperature to decrease and the steam S2 to condense.

[0038] Here, the steam S consists of steam S1 (see Figures 4, 8-10) which is generated during cooking and flows to the vicinity of the mixing unit 110 through the steam outlet 92, the first passage 61 of the steam condensation unit 60, and the through hole 21H, and steam S2 (see Figure 4) which flows to the vicinity of the mixing unit 110 through the intake 80 of the hood unit 30 when the door 91 is opened after cooking.

[0039] As shown in Figure 4, the mixing section 110 has a configuration consisting of a flow straightening plate 111 that straightens the flow of the mixed gas of external air A1 and vapor S to the positive and negative sides in the Z direction, and an airflow collision region 112 in which the mixed gas straightened by the flow straightening plate 111 flows in a direction in which it collides with each other. As shown in Figure 4, the airflow collision region 112 is composed of a pair of plate members 113 that are positioned behind the flow straightening plate 111 in the Y direction. The airflow collision region 112 will now be described in more detail. The components in the mixing section 110 are arranged in the following order from upstream of the airflow: the flow straightening plate 111, a pair of vertical wall sections 21B extending to the positive side in the Y direction, and plate members 113 extending from the Y-direction ends of the vertical wall sections 21B to the positive or negative side in the Z direction. A space is formed between the plate member 113 extending to the positive side in the Z direction and the plate member 113 extending to the negative side in the Z direction for the mixed gas to flow into the housing body 20. To elaborate on the flow of the mixed gas in the airflow collision region 112, the mixed gas is rectified to the positive and negative sides in the Z direction by the rectifier plate 111, then its course is changed to the positive side in the Y direction upon collision with the vertical wall portion 21B, and then its course is changed again to the Z direction upon collision with the plate member 113. In other words, the mixed gas rectified to the positive side in the Z direction by the rectifier plate 111 has its course changed to the negative side in the Z direction by the plate member 113, and the mixed gas rectified to the negative side in the Z direction by the rectifier plate 111 has its course changed to the positive side in the Z direction by the plate member 113, and they collide in the airflow collision region 112 to promote mixing. In this way, since the mixing section 110 is located near the inlet of the front panel 21 of the housing body 10, there is no need to provide a steam condensation structure such as arranging many baffle plates 66 inside the housing body 10, and it does not occupy the internal space of the housing body 10. Furthermore, the presence of the vertical wall section 21B and the plate member 113 narrows the suction gap, increasing the flow velocity of the gas mixture passing through this gap. As a result, when the gas mixture collides in the airflow collision region 112, the collision becomes more violent, promoting mixing. In addition, the increased flow velocity makes it possible to take the gas mixture into the housing body 20 without leakage. Thus, mixing of external air A1 and vapor S can be promoted with a simple mechanism, and the design flexibility of the inside of the housing body 10 is ensured.

[0040] The main air passage 28 constitutes the airflow path between the intake port 31 of the hood section 30 and the exhaust section 25H. The airflow generated by the blower 40 (flow of external air A1 and steam S) will be explained using Figure 4. When the blower 40 is operating, the external air A1 and steam S2 flow from the upstream hood section 30 through the mixing section 110 formed in the main opening 21A into the interior of the housing section 20. Steam S1 flows similarly, reaching the mixing section 110 through the through hole 21H formed in the main opening 21A before flowing into the interior of the housing section 20. The external air A1 and steam S (S1, S2) passing through the interior of the housing section 20 pass through the blower 40 and reach the exhaust section 25H, which is the downstream end of the main air passage 28 of the steam recovery device 1. Now, the airflow in the second condensation section 99, which will be described later, will be explained in detail. The mixture of external air A1 and vapor S that has passed through the mixing section 110 passes through the second condensing section 99 located at the back of the mixing section 110 (positive side in the Y direction). The mixture passing through the second condensing section 99 comes into contact with the second passage 62 and condenses, then moves towards the intake port of the blower 40, which is open in the direction of the inclined panel (negative side in the Z direction). It then passes through the blower 40 and is exhausted from the exhaust section 25H.

[0041] As shown in Figures 8 and 9, the rear panel 24 is provided with through-holes 24H that communicate with the second passage 62 of the steam condensation section 60, which will be described later. The number and shape of the through-holes 24H are not particularly limited. The rear panel through-holes 24H are holes through which the ambient air A2 passing through the second passage 62 is finally discharged. More specifically, the ambient air A2 taken in from the blower fan 63 located on the right side panel 22 of the housing body 20 passes through the second passage 62 on the front of the steam recovery device 1, then passes through the second passage 62 on the left side of the steam recovery device 1, and is discharged to the outside from the rear panel through-holes 24H of the rear panel 24 (see arrow in Figure 10). In this way, because the rear panel 24 is provided with through-holes 24H through which the ambient air A2 is exhausted, it is possible to prevent ambient air A2 from coming into contact with kitchen workers or other cooking equipment.

[0042] As shown in Figure 1, the top panel 25 is provided with an exhaust section 25H for exhausting the outside air A1 drawn in by the intake section 80 and the steam S (S1, S2) that has been condensed in the steam condensation section 60. The exhaust section 25H is positioned approximately above the blower 40. The air exhausted from the exhaust section 25H is steam with a reduced moisture content after condensation in the steam condensation section 60 and mixing in the mixing section 110, so it is less likely to cause condensation on the ceiling of the facility.

[0043] As shown in Figures 4 and 5, the inclined panel 27 is positioned so as to tilt upwards towards the negative side in the Y direction. This configuration allows for the drainage of condensation water generated within the housing body 20. More specifically, the inclined panel 27 is configured to tilt so that condensation water flows in the depth direction (positive side in the Y direction) and also so that it flows from the Y direction towards the connection part 64 (negative side in the X direction). Therefore, condensation water generated within the housing body 20 flows in the depth direction, then towards the connection part 64, and is finally discharged from the connection part 64 to the steam outlet 92 of the heating device 90, and then drained from the drain port, which is in communication with the steam outlet 92, to the drainage channel of a facility outside the heating device. Similarly, condensation water generated in the steam condensation section 60 flows down the inclined panel 27 and is discharged from the connection part 64.

[0044] <Food section 30> The hood section 30 receives external air A1 taken in from the air intake port 31. The hood section 30 is fixed to the housing body 20. The method of fixing the hood section 30 to the housing body 20 is not particularly limited.

[0045] As shown in Figure 4, the air intake 31 has a first air intake 32 located above the hood section 30 and a second air intake 33 that allows outside air A1 to flow in from a different direction than the first air intake 32. The second air intake 33 is located close to the heating device 90 when installed in the heating device 90 and opens in the direction from which steam is discharged, thus drawing in steam when the door 91 is open. The first air intake 32 mainly draws in outside air A1 above the hood section 30. The second air intake 33 is located on the negative side in the Z direction of the hood section 30, as shown in Figure 4. At this time, relatively high-temperature steam flows in from the second air intake 33, and relatively low-temperature steam flows in from the first air intake 32. As a result, outside air A1 and steam with different temperatures are unevenly distributed in the space inside the hood section 30, and since these unevenly distributed outside air A1 and steam are mixed in the mixing section 110, the mixing of outside air A1 and steam in the mixing section 110 is further promoted.

[0046] After cooking is performed in the heating device 90, the door 91 is opened, and the steam S2 discharged from the door 91 flows into the intake section 80 in the hood section 30 through the first intake port 32 and the second intake port 33.

[0047] <Steam condensation section 60> The steam condenser 60 condenses the steam S1 discharged from the steam outlet 92 of the heating device 90 during cooking. As shown in Figures 7 to 10, the steam condenser 60 has a first passage 61 through which the steam S1 passes, a second passage 62 through which the surrounding air A2 of the steam recovery device 1 passes, a blower fan 63 that supplies the surrounding air A2 to the second passage 62, a connecting part 64 connected to the steam outlet 92 of the heating device 90, and a connecting part 65 that connects the second passage 62 and the blower fan 63. As shown in Figures 4, 5, and 8, the steam condenser 60 has a first condenser 98 provided on the left side when viewed from the front of the steam recovery device 1, and a second condenser 99 provided on the front side of the steam recovery device 1.

[0048] The first passage 61 forms a passage through which steam S1 taken in from the connection section 64, which is the inlet end, proceeds toward the outlet end 61E. The first passage 61 includes a region in which a plurality of baffle plates 66 adjacent in the Y direction are arranged alternately in the X direction, and through which the steam S1 passes in a meandering manner.

[0049] In this embodiment, seven baffle plates 66 are arranged, but the configuration is not limited to this. Furthermore, the direction in which the baffle plates 66 are arranged alternately is not limited to the X direction.

[0050] As shown in Figures 7 to 10, the first passage 61 is configured such that a portion of the second passage 62 passes through a region in which multiple baffle plates 66 are arranged alternately. Specifically, the first passage 61 is configured such that a portion of the second passage 62 extending in the Y direction passes through a region in which multiple baffle plates 66 are arranged alternately. With this configuration, since the second passage 62 is arranged along the Y direction with respect to the direction of travel of steam S1 between the baffle plates 66 (X direction), the steam S1 passing through the first passage 61 comes into contact with the second passage 62 through which ambient air A2, which is at a lower temperature than the steam S1, flows as it meanders through in the X direction (left-right direction). The steam S1 that comes into contact with the second passage 62 condenses due to the temperature difference. Furthermore, since the region configured in this way is formed in a labyrinth region in which multiple baffle plates 66 are arranged alternately, the contact time between the second passage 62 and the steam S1 can be increased, promoting heat exchange and allowing the steam S1 to condense more.

[0051] The first passage 61 is formed in the region from the rear panel through-hole 24H along the Y direction to the vicinity of the outlet of the mixing section 110. Also, as shown in Figures 7 and 8, in the X direction, it is formed in the remaining region 21E of the region where the main body opening 21A of the front panel 21 is formed (which also corresponds to the remaining region of the door forming area of ​​the heating device 90). In this way, the first passage 61 makes it possible to condense the steam S1 in a relatively compact area of ​​the housing body. In the prior art, if sufficient collection and condensation effects cannot be obtained, the device may be enlarged by enlarging the baffle plate 66 or increasing the baffle area, but with this configuration, sufficient collection and condensation effects can be obtained in a compact area, thus suppressing the enlargement of the steam recovery device 1.

[0052] As shown in Figure 10, the first passage 61, when viewed from the extending direction (Y direction) in which a part of the second passage 62 extends, has an opening region 61A formed at one end (for example, the right end) in the left-right direction (X direction) by a baffle plate 66 through which steam S1 passes. Also, when viewed from the extending direction (Y direction) in which a part of the second passage 62 extends, the first passage 61 has an opening region 61B formed at the other end (for example, the left end) in the left-right direction (X direction) by another baffle plate 66 through which steam passes. In this way, multiple baffle plates 66 are arranged alternately in the X direction, so when condensation water flows down the baffle plates 66 and falls below the baffle plates 66, the flow of air (steam S1) in the X direction makes it easier for the condensation water to flow towards the opening regions (61A, 61B). If, for example, the opening region is located both above and below in the Z direction, then such air (vapor S1) flow cannot be utilized. In this case, it would be necessary to provide a discharge slit at the contact point between the baffle plate 66 and the inclined panel 27 to discharge condensation. In contrast, in this configuration, since multiple baffle plates 66 are arranged alternately in the X direction, there is no need to provide a discharge slit.

[0053] The second passage 62 is provided within the first passage 61, separated from the first passage 61. The air A2 surrounding the steam recovery device 1, which is taken in by the blower fan 63, passes through the second passage 62.

[0054] The second passage 62 is configured to be continuous with at least two sides of the steam recovery device 1, as shown in Figures 8 to 10. Specifically, the second passage 62 is configured to be continuous with the front and left side surfaces of the steam recovery device 1. Note that the two sides are not limited to the above configuration. In other words, the second passage 62 has an L-shape with a portion extending in the Y direction and a portion extending in the X direction, as shown in Figures 8 to 10. With this configuration, the second passage 62 can be made longer, the heat exchange area can be increased, and the condensation of steam S1 can be further promoted.

[0055] Furthermore, the portion of the second passage 62 that extends in the X direction is positioned on the front panel 21 side, as shown in Figure 10. With this configuration, after cooking, the steam S2 in the heating device 90 that is discharged by opening the door 91 can be brought into contact with the second passage 62 and cooled and condensed by the surrounding air A2 passing through the second passage 62. The length of the portion of the second passage 62 that extends in the X direction along the X direction is approximately the same as the length of the main body opening 21A of the front panel 21 along the X direction.

[0056] As described above, outside air A1 flows into the front of the steam recovery device 1 from the intake port 31 of the hood section 30, and the remaining steam S1 that could not be condensed by the multiple baffle plates 66 flows in through the outlet end 61E. In the main air passage 28 on the front side of the steam recovery device 1, this outside air A1 and steam S1 merge and mix. As a result, the relative humidity in the main air passage 28 on the front side of the steam recovery device 1 increases, and the passing air becomes more prone to condensation. Therefore, moisture is recovered from the passing air in the mixing region and fan region of the main air passage 28, which reduces the amount of steam discharged from the steam recovery device 1.

[0057] Three second passages 62 are provided, one in the direction of steam S2 flowing along one baffle plate 66 and another baffle plate 66 adjacent to it (X direction), and the other in the direction of steam S2 flowing along that direction (Y direction) and the other baffle plate 66 facing the other baffle plates 66 (Z direction). With this configuration, steam S1 can also flow between the second passages 62 which are spaced apart in the Z direction, increasing the heat exchange area and allowing for more favorable condensation of steam S1. The number of second passages 62 is not limited to three. The portion of the second passage 62 extending in the Y direction has a horizontally elongated shape that is longer in the X direction when viewed from the Y direction. With this configuration, because it is spaced apart with respect to the left-right direction of steam S1 flow (X direction) and is horizontally elongated in the X direction, steam S1 can easily pass through the gaps in the second passages 62, allowing steam S1 to come into even contact with the second passages 62.

[0058] As shown in Figure 1, the blower fan 63 is positioned on the right side panel 22 of the housing body 10. The blower fan 63 takes in ambient air A2 from the right side panel 22 and supplies it to the second passage 62. After passing through the portions of the second passage 62 that extend in the X direction and the Y direction, the ambient air A2 is exhausted to the outside through the rear panel through-hole 24H of the rear panel 24 (see arrow in Figure 10). By providing the blower fan 63 in this way, ambient air A2 can be forcibly supplied to the second passage 62, allowing the steam S1 to be cooled more effectively.

[0059] The flow velocity of the ambient air A2 passing through the second passage 62, supplied by the blower fan 63, is preferably 2.0 m / s or more. With this configuration, the blower fan 63 can supply an appropriate amount of ambient air A2 sufficient to condense the vapor in contact with the second passage 62, and the vapor S1 can be suitably condensed. Here, the location in the second passage 62 where the flow velocity is 2.0 m / s or more is the outlet end of the second passage 62 (the rear through-hole 24H of the rear panel 24). It is preferable that ambient air A2 is supplied so that the flow velocity is 2.0 m / s to 3.0 m / s at the outlet end of the second passage 62 and 3.0 m / s to 4.0 m / s at other locations in the second passage 62.

[0060] Since the blower fan 63 shares the same power supply as the blower 40, it operates in conjunction with the on / off switching of the blower 40. In other words, when the blower 40 is running, the blower fan 63 also operates, ensuring that ambient air A2 is constantly supplied to the second passage 62.

[0061] As shown in Figure 8, the connection part 64 is positioned on the positive side in the Y direction and the negative side in the X direction of the steam condensation section 60. The connection part 64 is connected to a steam outlet 92 provided on the heating device 90 in order to discharge a portion of the steam S1 generated from the heating device 90 to the outside of the heating device 90.

[0062] As shown in Figure 12, the connecting section 65 is positioned between the three second passages 62 and the blower fan 63, connecting the three second passages 62 and the blower fan 63. As shown in Figure 12, the connecting section 65 has a trapezoidal shape so that it expands from the second passages 62 toward the blower fan 63 when viewed from the Y direction. The connecting section 65 is provided with two partition plates 65A so as to communicate with and partition each of the three second passages 62. The two partition plates 65A are arranged to extend in the X and Y directions. With this configuration, the flow velocity of the ambient air A2 supplied to the second passages 62 can be made uniform in each second passage 62.

[0063] In the steam condensation unit 60 configured as described above, steam S1 discharged from the steam outlet 92 of the heating device 90 during cooking flows into the first passage 61 of the steam recovery device 1 via the connection part 64. The steam S1 that flows into the first passage 61 collides with the baffle plate 66 and heads towards the outlet opening 61S. As the steam S1 collides with the baffle plate 66, the steam and oil fumes contained in the steam S1 are captured by inertial collision. In addition, the steam S1 passing through the first passage 61 comes into contact with the second passage 62 through which ambient air A2, which is at a lower temperature than the steam S1, flows, and heat exchange occurs, resulting in optimal condensation.

[0064] <Blower 40> The blower 40 is arranged inside the housing body 10, as shown in Figures 4 and 5. The blower 40 includes an exhaust fan 41, a fan motor 42, and a casing 43. A turbo fan can be used as the blower 40. A turbo fan is a fan characterized by having fewer blades and a thin width. By arranging the turbo fan blower 40 horizontally, the height of the steam recovery device 1 can be suppressed.

[0065] The blower 40 is operated by a switch, and operates independently of the low-notch, high-notch, and off-notch switches and the heating device 90, but it may also be operated in conjunction with the operation of the heating device 90 or the opening of the door 91.

[0066] During cooking, the blower 40 draws in steam S1 discharged from the steam outlet 92 of the heating device 90, and outside air A1 from the first intake port 32 and the second intake port 33, respectively. The blower 40 then mixes the steam S1 and the outside air A1 in the mixing section 110 and discharges the mixture to the outside from the exhaust section 25H of the housing body 20.

[0067] When the door 91 is opened during or after cooking, the blower 40 draws in steam S2 flowing out of the door 91 via the intake section 80, and outside air A1 from the first intake port 32 and the second intake port 33, respectively. The blower 40 then mixes the steam S1, S2, and outside air A1 in the mixing section 110 and discharges the mixture to the outside through the exhaust section 25H of the housing body 20.

[0068] With the exhaust fan 41 operating, the flow velocity of steam S1 at the connection part 64 is preferably 1.5 m / s or less. For example, if the flow velocity of steam S1 at the connection part 64 is faster than 1.5 m / s, it may draw air from the drain connected to the heating device 90, potentially generating an unpleasant odor. In contrast, the steam recovery device 1 according to this embodiment is set so that the flow velocity of steam S1 at the connection part 64 is 1.5 m / s or less, thus effectively suppressing the generation of unpleasant odors. The equipment conditions when the steam S1 flow velocity is 1.5 m / s or less are that the device is not connected to the heating device 90 and the wind speed is 300 m / s. 3 This is the case when operating at / s. Furthermore, the flow velocity of the steam S1 can be adjusted, for example, by the area of ​​the outlet opening 61S of the first passage 61.

[0069] The specific operation of the steam recovery device 1 and the heating device 90 will be described below.

[0070] When a predetermined cooking process (for example, stir-frying ingredients) is started in the heating device 90, the heating device 90 uses high-temperature steam and high-temperature hot air to cook the ingredients. At this time, steam S1 and hot air are intermittently discharged from the steam outlet 92 located on the top surface of the heating device 90. For example, steam S1 is discharged at a rate of 4.0 m / sec to the connection part 64 of the steam recovery device 1.

[0071] When the start switch for the steam recovery device 1 is operated in conjunction with the start of cooking, the blower 40 will, for example, set to a wind speed of 300 m / s. 3 The blower fan 63 operates at an output of / h, for example, at an output that causes the flow velocity in the second passage 62 to be approximately 3.0 m / s to 4.0 m / s.

[0072] Steam S1 from the heating device 90 flows into the steam condensation section 60 of the steam recovery device 1 due to a force pushing it out from the heating device 90 toward the connection section 64 of the steam recovery device 1 and a force drawing it in by the operation of the blower 40 of the steam recovery device 1. In addition, the operation of the blower 40 creates an airflow within the steam recovery device 1 that flows from the connection section 64 toward the exhaust section 25H.

[0073] Therefore, the steam S1 flowing in from the connection section 64 meanders through the region where the baffle plate 66 of the steam condensation section 60 is formed, then flows into the outlet opening 61S, flows into the mixing section 110 via multiple through holes 21H, reaches the blower 40 via the main air passage 28, and is exhausted from the exhaust section 25H.

[0074] As described above, a second passage 62 is formed in the steam S1 flow path (baffle region). Therefore, the air (steam) that meanders through the region where the baffle plate 66 of the steam condensation section 60 is formed is captured by inertial collision with the baffle plate 66, and also comes into contact with the second passage 62 through which the surrounding air A2, which is at a lower temperature than the steam S1, passes, causing it to condense, decrease in temperature, and lose moisture.

[0075] The air (steam) that has passed through the baffle region is then mixed with the outside air A1 in the mixing section 110, and its temperature is further reduced before it flows into the main air passage 28.

[0076] Then, the air (steam) that flows into the main air passage 28 comes into contact again with the second passage 62 on the front side of the steam recovery device 1, condenses, and loses moisture as its temperature decreases.

[0077] In this way, the air (steam) whose temperature has decreased and which has lost its moisture reaches the exhaust fan 41 and is discharged into the kitchen space from the exhaust section 25H located on the top surface.

[0078] As described above, the steam recovery device 1 according to this embodiment is a steam recovery device 1 equipped with a steam condensation section 60. The steam condensation section 60 has a first passage 61 through which steam S1 passes, and a second passage 62 provided within the first passage 61, separated from the first passage 61, through which the air A2 surrounding the steam recovery device 1 passes. With the steam recovery device 1 configured in this way, since there is a first passage 61 through which steam S1 passes, and a second passage 62 provided within the first passage 61, separated from the first passage 61, through which the air A2 surrounding the steam recovery device 1 passes, it is possible to secure a heat exchange area while suppressing an increase in the size of the device, and the condensation of steam S1 can be suitably promoted by the air A2 surrounding the steam recovery device 1. From the above, it is possible to provide a steam recovery device 1 that can improve the steam collection efficiency while suppressing an increase in the size of the device.

[0079] Furthermore, the first passage 61 includes a region where multiple baffle plates 66 are arranged alternately, allowing the steam S1 to pass through in a meandering manner. With the steam recovery device 1 configured in this way, the steam S1 can be collected as it collides with the baffle plates 66. In addition, compared to a straight passage, the distance the steam S1 travels is longer, and heat exchange is further promoted.

[0080] Furthermore, the steam condensation section 60 has a blower fan 63 that supplies ambient air A2 to the second passage 62. With the steam recovery device 1 configured in this way, ambient air A2 can be forcibly supplied to the second passage 62, and the steam S1 can be more effectively condensed by contact with the second passage 62.

[0081] Furthermore, the flow velocity of the ambient air A2 passing through the second passage 62, supplied by the blower fan 63, is 2.0 m / s or more. With the steam recovery device 1 configured in this way, the blower fan 63 can supply an appropriate amount of ambient air A2 to obtain a condensation effect, and the steam S1 can be suitably condensed.

[0082] Furthermore, the steam recovery device 1 includes a connection part 64 connected to a steam outlet 92 provided on the heating device 90 in order to discharge a portion of the steam S1 generated from the heating device 90 to the outside of the heating device 90, and an exhaust fan 41 for taking in steam S1. The device is configured such that when the exhaust fan 41 is operating, the flow velocity of steam S1 in the connection part 64 is 1.5 m / s or less. With the steam recovery device 1 configured in this way, the generation of off-odors can be effectively suppressed without excessively drawing in air from the heating device 1.

[0083] Furthermore, the second passage 62 is configured to be continuous with at least two sides of the steam recovery device 1. With the steam recovery device 1 configured in this way, the second passage 62 can be made longer, the area for heat exchange can be increased, and the condensation of steam S1 can be further promoted.

[0084] Furthermore, at least one surface of the steam recovery device 1 has a main body opening 21A through which steam S2 and ambient air A2 pass, and the second passage 62 is located at least on the side where the main body opening 21A is provided. With the steam recovery device 1 configured in this way, after cooking, the steam S2 in the heating device 90 that is discharged by opening the door 91 can be cooled and condensed by the ambient air A2 passing through the second passage 62. Also, as described above, outside air A1 flows into the front side of the steam recovery device 1 from the intake port 31 of the hood section 30, and the remaining steam S1 that could not be condensed by the multiple baffle plates 66 flows in through the outlet end 61E. That is, in the second condensation section 99 on the front side of the steam recovery device 1, condensation occurs due to contact with the second passage 62, and mixing of outside air A1 and steam S1 occurs. As a result, the relative humidity increases in the main body air passage 28 on the front side of the steam recovery device 1, and the passing air becomes more prone to condensation. Therefore, moisture is recovered from the air passing through the main air passage 28, reducing the amount of steam discharged from the steam recovery device 1.

[0085] Furthermore, in the first passage 61, an opening region 61A is formed at one end in the left-right direction (X direction) when viewed from the extending direction (Y direction) where a part of the second passage 62 extends, by a baffle plate 66, and an opening region 61B is formed at the other end in the left-right direction, by another baffle plate 66 adjacent to the first baffle plate 66, through which steam S1 also passes. With the steam recovery device 1 configured in this way, since the multiple baffle plates 66 are arranged alternately in the X direction, condensed water flows easily.

[0086] Furthermore, a portion of the second passage 62 is formed to penetrate the region of the first passage 61 where multiple baffle plates 66 are arranged alternately. With the steam recovery device 1 configured in this way, the second passage 62 is arranged along the Y direction with respect to the direction of travel of steam S1 between the baffle plates 66 (X direction). As the steam S1 passing through the first passage 61 meanders through in the X direction (left-right direction), it comes into contact with the second passage 62 through which ambient air A2, which is at a lower temperature than the steam S1, flows. The steam S1 that comes into contact with the second passage 62 is condensed due to the temperature difference. And, since the region configured in this way is formed in a labyrinth region where multiple baffle plates 66 are arranged alternately, the contact time between the second passage 62 and the steam S1 can be increased, promoting heat exchange and allowing the steam S1 to condense more.

[0087] Furthermore, multiple second passages 62 are provided in directions that intersect with the direction in which steam S1 flows along one baffle plate 66 and another baffle plate 66 adjacent to that baffle plate 66, as well as the direction in which one baffle plate 66 faces another baffle plate 66. With the steam recovery device 1 configured in this way, steam S1 can also be circulated between the second passages 62 which are spaced apart in the Z direction, thereby increasing the heat exchange area and allowing the steam S1 to be condensed more effectively.

[0088] Furthermore, the steam condensation section 60 has a connecting section 65 that connects a plurality of second passages 62 and a blower fan 63, and the connecting section 65 is provided with one or more partition plates 65A that communicate with and partition each of the plurality of second passages 62. With the steam recovery device 1 configured in this way, the flow velocity of the ambient air A2 supplied to the second passages 62 can be made uniform in each second passage 62, and air can be supplied uniformly to the blower fan 63.

[0089] The configuration of the steam recovery device 1 according to the present invention has been described above through embodiments and modifications, but the present invention is not limited to the embodiments and modifications described above, and can be modified in various ways within the scope of the claims.

[0090] For example, in the embodiment described above, the steam condensation unit 60 had a blower fan 63, but it does not have to have a blower fan 63.

[0091] Furthermore, in the embodiment described above, the blower fan 63 is placed on the inlet side of the second passage 62, but the blower fan may also be placed on the outlet side of the second passage 62.

[0092] Furthermore, in the embodiment described above, the second passage 62 has its right side as an entrance and its rear side as an exit, but it may also have its rear side as an entrance and its right side as an exit.

[0093] Furthermore, in the embodiment described above, the second passage 62 was configured to be continuous with at least two sides of the steam recovery device 1. However, the second passage 162 may be configured to extend only in the Y direction, as shown in Figure 13.

[0094] Furthermore, in the embodiment described above, three second passages 62 were provided along the Z direction. However, as shown in Figure 13, multiple second passages 62 (two in Figure 13) may be provided along the X direction. In this case, the multiple baffle plates 66 have a configuration in which the Z direction openings alternately. In this configuration, multiple second passages 62 are provided in the direction (X direction) that intersects the direction of travel of steam S1 flowing along one baffle plate 66 and other baffle plates 66 adjacent to one baffle plate 66, and the direction in which one baffle plate 66 faces other baffle plates 66 (Y direction).

[0095] Furthermore, in the embodiment described above, the steam recovery device 1 had a blower 40. However, as shown in Figure 14, the steam recovery device 2 may consist of a steam condensation section 60 without a blower. The steam condensation section 60 has a blower fan 63 and a second passage 62. In this case, the steam generated during cooking is drawn in and exhausted by the pressure inside the heating device 90. The number, length, and shape of the second passage 62 can be changed depending on the size and capacity of the cooking appliance. With the steam recovery device 2 configured in this way, it can be installed even in small heating devices or in small spaces.

[0096] Furthermore, although the above-described embodiment used a heating device 90 as an example of a steam source, the steam source is not limited to a heating device 90, and may be a dryer, a hot air blower, or the like.

[0097] Furthermore, in the above-described embodiment, the second passage 62 is configured to penetrate the region where the baffle plates 66 of the first passage 61 are arranged alternately, so that all four surfaces of the second passage 62 penetrate. However, the second passage 62 may also be configured so that two or three surfaces of the second passage 62 penetrate the region where the baffle plates 66 of the first passage 61 are arranged alternately. Here, a configuration in which three surfaces of the second passage 62 penetrate the baffle plate 66 means, for example, that the second passage 62 is in contact with the left side panel and the three surfaces of the second passage 62 (top, bottom, and right side) penetrate the baffle plate 66, and a configuration in which two surfaces of the second passage 62 penetrate the baffle plate 66 means, for example, that the second passage 62 is in contact with the left side panel and the top panel and the two surfaces of the second passage 62 (bottom and right side) penetrate the baffle plate 66.

[0098] Furthermore, although the second passage 62 was rectangular in the embodiment described above, it may also be cylindrical. If the second passage 62 is cylindrical, the entire outer surface may penetrate the baffle plate 66, or the second passage 62 may be in contact with the left side panel and more than 50% of the outer surface of the second passage 62 may penetrate the baffle plate 66, or the second passage 62 may be in contact with both the left side panel and the top panel and more than 25% of the outer surface may penetrate the baffle plate 66. Also, the second passage 64 may be configured to penetrate all of the baffle plates 66 arranged in the first passage 61, or to penetrate only a part of them (for example, only the baffle plates 66 installed closer to the left side panel). In addition, the shape of the second passage 62 is not limited to cylindrical, but may also be elliptical or triangular, and the second passage 62 can be placed at any position that penetrates the baffle plate 66 as long as the effects of the present invention are achieved.

[0099] Furthermore, in the above-described embodiment, a mixing unit 110 is provided to promote the mixing of external air A1 and steam S2, but the mixing unit 110 is not required.

[0100] Furthermore, in the embodiment described above, the intake port 31 had a first intake port 32 and a second intake port 33, but the intake port 31 may be provided with either the first intake port 32 or the second intake port 33. [Explanation of Symbols]

[0101] 1. Steam recovery device, 5. Heating device unit, 10. Main unit of the enclosure, 20. Casing body, 21A Main body opening, 25H Exhaust section, 40 blowers, 41 Exhaust fan, 60 Steam condensation section, 61 1st aisle, 61A, 61B opening area, 62 2nd aisle, 63. Blower fan, 64 connection part, 65 Connecting part, 65A partition plate, 66 baffle board, 90 heating equipment; A2 The air surrounding the steam recovery unit, S1, S2 steam.

Claims

1. A steam recovery device equipped with a steam condensation section, An intake section into which outside air flows in from around the main body of the enclosure, It has a main air passage that constitutes an airflow path from the intake section to the exhaust section of the housing body, The aforementioned steam condensation section is The first passage through which the steam passes, The first passage is provided within the first passage, separated from the first passage, and has a second passage through which the air surrounding the steam recovery device passes. The outlet end of the first passage is in communication with the intake section, and the steam recovery device is provided.

2. The steam recovery device according to claim 1, wherein the second passage has a portion that passes downstream of the intake section within the main air passage.

3. The steam recovery apparatus according to claim 1 or 2, wherein the first passage comprises a region in which a plurality of baffle plates are arranged alternately, and the steam passes through in a meandering manner.

4. The aforementioned steam condensation section is The steam recovery apparatus according to claim 1 or 2, further comprising a blower fan that supplies the surrounding air to the second passage.

5. The steam recovery apparatus according to claim 4, wherein the flow velocity of the ambient air passing through the second passage, supplied by the blower fan, is 2.0 m / s or more.

6. In order to discharge a portion of the steam generated from the heating device to the outside of the heating device, a connecting part is provided that is connected to a steam outlet on the heating device, The system further includes an exhaust fan for taking in the aforementioned steam, The steam recovery apparatus according to claim 1 or 2, configured such that the steam flow velocity at the connection point is 1.5 m / s or less when the exhaust fan is operating.

7. The steam recovery apparatus according to claim 1 or 2, wherein the second passage is configured to be continuous with at least two sides of the steam recovery apparatus.

8. At least one surface of the steam recovery device has a body opening through which the steam and the surrounding air pass. The steam recovery apparatus according to claim 1 or 2, wherein the second passage is arranged at least on the side on which the main body opening is provided.

9. The first passage is configured such that a portion of the second passage passes through an area in which the plurality of baffle plates are arranged alternately. The first passage has an opening formed at one end in the left-right direction when viewed from the direction of extension to which a part of the second passage extends, by a baffle plate through which the steam passes. The steam recovery apparatus according to claim 3, wherein an opening region through which the steam passes is formed at the other end in the left-right direction by another baffle plate adjacent to the first baffle plate.

10. The steam recovery apparatus according to claim 3, wherein a portion of the second passage is formed to penetrate the region of the first passage in which the plurality of baffle plates are arranged alternately.

11. The steam recovery apparatus according to claim 3, wherein a plurality of the second passages are provided in a direction that intersects with the direction in which the steam flows along one baffle plate and another baffle plate adjacent to the first baffle plate, and with the direction in which the first baffle plate faces the other baffle plates.

12. The steam condensation section further includes a connecting section that connects a plurality of the second passages and a blower fan. The steam recovery apparatus according to claim 11, wherein one or more partition plates are provided in the connecting portion so as to communicate with and partition each of the plurality of second passages.

13. A steam recovery apparatus according to claim 1 or 2, A heating device unit having a heating device.

14. The heating device unit according to claim 13, wherein the heating device has a door that can be opened and closed at the opening of the heating chamber.

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