Continuous soy milk heating device equipped with a steam ejection pipe

Abstract

To provide a technique contributing to uniform heating of rice. 【Solution means】The steam ejection pipe 6 includes an annular pipe 60 having ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k arranged spirally on the inner peripheral surface. The steam ejection pipe 6 is arranged inside the cylindrical heating pipe 4 and inside the tapered portion 20 having the inlet 20a. As a result, an upward vortex can be generated in the flow of rice flowing from the inlet 20a through the inner circumference of the annular pipe 60 toward the outlet 22a. As a result, the heated rice does not flow back inside the heating pipe 4, the rice does not stay inside the heating pipe 4, and the unheated raw rice is not discharged from the rice outlet 22a in the heating pipe 4. Therefore, good first-in first-out of rice can be realized.

Description

Technical Field

[0001] The present invention is disposed inside a heating pipe into which go made by grinding soybeans immersed in water flows, and includes a steam ejection Tube provided Continuous soy milk relating to a heating device.

Background Art

[0002] Japanese Unexamined Patent Application Publication No. 2009-268405 (Patent Document 1) describes a heating device including a boiling can into which go made by grinding soybeans immersed in water flows, and a steam ejection pipe configured as a straight pipe substantially equal in diameter to the boiling can and having a plurality of steam ejection holes, and disposed at the bottom inside the boiling can.

[0003] The heating device heats the go inside the boiling can by ejecting steam into the boiling can from the steam ejection holes. The boiled go heated by the soy milk heating device is separated from okara to produce soy milk by being squeezed or the like in a subsequent process.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the heating device described in the above-mentioned publication, since the steam ejection pipe is a straight pipe, the go inside the boiling can cannot be heated evenly, and there may be a problem that unheated go is sent to a subsequent process. There is still room for improvement in terms of uniform heating of go.

[0006] The present invention has been made in view of the above, and one of its objects is to provide a technique contributing to uniform heating of go.

Means for Solving the Problem

[0007] The steam ejection of the present invention Tube comprises Continuous soy milk The heating device has adopted the following means to achieve the above object.

[0008] According to a preferred form of the first invention Continuous soy milk heating device as follows A continuous soy milk heating device is configured to heat the soy milk produced by grinding soybeans immersed in water. The continuous soy milk heating device includes a substantially cylindrical heating tube having a longitudinal direction, a supply tube, a discharge tube, a steam ejection tube disposed coaxially with the heating tube inside the heating tube at one end side of the heating tube in the longitudinal direction, and a rectifying plate having an annular disc shape with a circular hole having an inner diameter smaller than the inner diameter of the supply tube and an outer diameter smaller than the inner diameter of the heating tube. is. The supply tube is connected in communication coaxially with the steam ejection tube at one end in the longitudinal direction of the heating tube to supply soy milk inside the heating tube. The discharge tube is connected in communication coaxially with the heating tube at the other end in the longitudinal direction of the heating tube to discharge soy milk to the outside of the heating tube. The steam ejection pipe includes an annular portion having a plurality of first ejection holes, and a supply portion communicatively connected to the annular portion to supply steam to the annular portion. . Multiple number of First The ejection holes are It has a reference ejection hole disposed substantially at the center in the extending direction of the axis, and from the reference ejection hole of the annular portion arranged spirally along the , and toward the first direction in the extending direction of the axis of the annular portion circumferential direction of the annular portion. The rectifying plate is disposed coaxially with the steam ejection tube inside the heating tube between the supply tube and the steam ejection tube. And there is an annular gap between the outer peripheral surface of the steam ejection tube or the outer peripheral surface of the rectifying plate and the inner peripheral surface of the heating tube. The circular hole constitutes a first flow path through which soy milk flows, and the annular gap constitutes a second flow path through which soy milk flows. And the flow path area of the first flow path and the flow path area of the second flow path are equal.

[0009] According to the first invention, a vortex can be generated inside the heating pipe by the steam ejected from the plurality of first ejection holes in which the annular portion is arranged spirally along the circumferential direction. Thereby, compared with the configuration in which the steam ejection pipe is a straight pipe, the interior of the heating pipe can be evenly heated, and the inconvenience that the unheated interior is sent to the subsequent process can be preferably suppressed. Note that The steam ejection tube is the most upstream portion in the flow direction of the interior in the heating pipe arranged placed for a vortex can be generated from the most upstream portion to the most downstream portion in the flow direction of the interior in the heating pipe . Thereby so that the heated interior does not flow back inside the heating pipe, the interior does not stagnate inside the heating pipe, and the unheated raw interior is not discharged from the discharge port of the interior in the heating pipe. As a result Thus, good first-in first-out of the interior can be realized. In addition, since the first ejection hole is arranged spirally from the reference ejection hole disposed substantially at the center in the extending direction of the axis of the annular portion toward the first direction in the extending direction of the axis of the annular portion, a vortex flow can be generated only in the first direction in the extending direction of the axis of the annular portion. Thereby, compared with a configuration in which a vortex flow is also generated in the direction opposite to the first direction, good first-in first-out of soy milk can be realized. Moreover, the flow rate of soy milk flowing through the inner periphery of the circulation portion through the circular hole and the flow rate of soy milk flowing through the outer periphery of the circulation portion (the gap between the outer peripheral surface of the steam ejection tube or the outer peripheral surface of the rectifying plate and the inner peripheral surface of the heating tube) can be made substantially equal. Thereby, the soy milk inside the heating tube can be heated more evenly.

[0010] According to a further aspect of the steam ejection pipe according to the second invention, the steam ejection pipe according to the first invention has a plurality of first ejection holes, and a reference ejection hole disposed substantially at the center in the extending direction of the axis of the annular portion. The plurality of first ejection holes are arranged in a spiral shape from the reference ejection hole toward a first direction in the extending direction of the axis of the annular portion.

[0011] According to the second invention, a vortex flow can be generated only in the first direction in the extending direction of the axis of the annular portion. Thereby, compared with a configuration in which a vortex flow is also generated in the direction opposite to the first direction, good first-in first-out can be realized.

[0012] The 2 invention according to Continuous soy milk heating device a further aspect of One the invention according to Continuous soy milk heating device has a plurality of ejection holes each having a first axis. The first axis has an inclination such that the intersection angle with the axis of the annular portion becomes larger for the first ejection hole disposed more forward in the first direction. Here, the "intersection angle" in the present invention is defined as the angle that gradually increases among the angles formed by the first axis and the axis of the annular portion, and preferably includes a mode in which the first axis and the axis of the annular portion are parallel, that is, 180 degrees.

[0013] The 2 invention according to can more reliably generate a vortex flow inside the heating pipe.

[0014] The 3 invention according to Continuous soy milk heating device a further aspect of has a first Or The 2 invention according to Obviously has a first Continuous soy milk heating device ejection hole at least a part of which opens to the inner peripheral surface of the annular portion.

[0015] The 3According to the invention, when the steam discharge pipe is arranged inside the heating pipe so that the liquid flows along the extending direction of the axis of the annular part, the steam can be effectively brought into contact with the liquid flowing through the inner circumference of the annular part. Thereby, a vortex can be effectively generated in the liquid flowing through the inner circumference of the annular part, and the liquid can be uniformly heated.

[0016] No. 4 relating to the invention of Continuous soy milk heating device According to a further aspect of the invention of No. 3 relating to the invention of Continuous soy milk heating device wherein the annular part further has a plurality of second ejection holes. The plurality of second ejection holes open on the outer peripheral surface of the annular part and are arranged along the circumferential direction of the annular part.

[0017] No. 4 According to the invention, when the steam discharge pipe is arranged inside the heating pipe so that the liquid flows along the extending direction of the axis of the annular part, the steam can be satisfactorily brought into contact with the liquid flowing between the outer peripheral surface of the annular part and the inner peripheral surface of the heating pipe. Thereby, the liquid can be heated more uniformly.

[0018] No. 5 relating to the invention of Continuous soy milk heating device According to a further aspect of the invention of No. 4 relating to the invention of Continuous soy milk heating device wherein the plurality of second ejection holes each have a second axis. The second axis has an upward inclination toward the radially outer side of the annular part.

[0019] No. 5 According to the invention, when the steam discharge pipe is arranged inside the heating pipe so that the liquid flows along the extending direction of the axis of the annular part, the steam can be satisfactorily brought into contact with the liquid flowing between the outer peripheral surface of the annular part and the inner peripheral surface of the heating pipe while suppressing a decrease in the flow velocity of the liquid. Thereby, the liquid can be heated even more uniformly.

Advantages of the Invention

[0024] According to the present invention, a technique contributing to uniform heating of the liquid can be provided.

Brief Description of the Drawings

[0025]

Figure 1

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Modes for Carrying Out the Invention

[0026] Next, the best mode for carrying out the present invention will be described using examples.

Examples

[0027] As shown in Fig. 1, the continuous soy milk heating device 1 according to the present embodiment includes a frame body 2, a plurality of heating tubes 4 supported by the frame body 2, a steam ejection tube 6 according to the present embodiment disposed inside each heating tube 4, an aging tube 8 supported by the frame body 2, and a steam header 10 connected to the steam ejection tube 6. The continuous soy milk heating device 1 is configured as a device that continuously passes raw go (produced by grinding soaked soybeans, which are raw soybeans soaked in water, with a grinder) through a plurality of heating tubes 4 and heats it step by step and directly with steam. Generally, the go at the stage of being introduced into the heating tube 4 is called "raw go", and the go at the stage of being introduced into the aging tube 8 after the heating is completed is called "boiled go". However, in the present embodiment, at the stage of being introduced into the heating tube 4, it will simply be referred to as "go" for the sake of explanation. Further, in the following description, for the sake of convenience, the left direction in Figs. 1 and 2 is defined as "front side" or "front", the right direction in Figs. 1 and 2 is defined as "rear side" or "rear", the upward direction in Fig. 1 is defined as "upper side" or "above", and the downward direction in Fig. 1 is defined as "lower side" or "below". Furthermore, the upward direction in Fig. 2 is defined as "right side", and the downward direction in Fig. 2 is defined as "left side".

[0028] As shown in Figs. 1 and 2, the frame body 2 constitutes a rectangular parallelepiped frame in which the left - right direction is shorter than the front - rear direction.

[0029] As shown in Fig. 2, a plurality of heating tubes 4 are arranged in two rows in the left - right direction within the frame body 2. In the present embodiment, two heating tubes 42 and 44 are arranged on the left side along the front - rear direction, and three heating tubes 41, 43, and 45 are arranged on the right side along the front - rear direction. The heating tubes 42 and 44 arranged on the left side and the heating tubes 41, 43, and 45 arranged on the right side are arranged offset in the front - rear direction. That is, the centers of the heating tubes 42 and 44 arranged on the left side are positioned between the centers of the heating tubes 41, 43, and 45 arranged on the right side. Since the heating tubes 41, 42, 43, 44, and 45 basically have the same configuration, in the following description, when there is no particular need to distinguish them, they will simply be referred to as "heating tube 4" for the sake of explanation.

[0030] As shown in FIG. 3, the heating pipe 4 is configured as a cylindrical pipe having a longitudinal direction, and has tapered portions 20 and 22 with gradually decreasing inner and outer diameters at both longitudinal ends. The tapered portion 20 has an inlet 20a. The inlet 20a is arranged coaxially with the heating pipe 4, more specifically, with the tapered portion 20. A supply pipe 24 is communicatively connected to the inlet 20a (see also FIG. 1). A drain pipe 25 is communicatively connected to the end of the supply pipe 24 on the side opposite to the side where the inlet 20a is communicatively connected via a drain cock 25a. Further, the tapered portion 22 has an outlet 22a. The outlet 22a is arranged coaxially with the heating pipe 4, more specifically, with the tapered portion 20. In other words, it can be said that the outlet 22a and the inlet 20a are arranged coaxially.

[0031] As shown in FIG. 1, a pressure feed pipe 11 drawn from a tank (not shown) is communicatively connected to the supply pipe 24 communicatively connected to the inlet 20a of the heating pipe 41. Further, the outlet 22a of the heating pipe 41 and the inlet 20a of the heating pipe 42, the outlet 22a of the heating pipe 42 and the inlet 20a of the heating pipe 43, the outlet 22a of the heating pipe 43 and the inlet 20a of the heating pipe 44, the outlet 22a of the heating pipe 44 and the inlet 20a of the heating pipe 45 are communicatively connected by connection pipes 28 respectively (see FIGS. 1 and 3). The outlet 22a of the heating pipe 45 is communicatively connected to a supply pipe 34 (described later) communicatively connected to the aging pipe 8 via the connection pipe 28. That is, the goo pumped from a raw goo generation unit (not shown) via the pressure feed pipe 11 is first introduced into the heating pipe 41, heated in the heating pipe 41, and then sequentially fed to the heating pipes 42, 43, 44, 45 via the connection pipe 28, so as to be continuously heated. The connection pipe 28 is an example of an implementation configuration corresponding to the "discharge pipe" in the present invention.

[0032] As shown in Fig. 4, the steam ejection pipe 6 has an annular pipe 60 and a straight pipe 62 integrally formed with the annular pipe 60. As shown in Figs. 4 and 6, the annular pipe 60 has a plurality of ejection holes 64 spirally arranged along the circumferential direction on the inner circumferential surface including the upper surface (the surface on one end side in the extending direction of the axis La of the annular pipe 60), and a plurality of ejection holes 66, 68 arranged on the outer circumferential surface. That is, the ejection holes 64 open on the inner circumferential surface including the upper surface of the annular pipe 60, and the ejection holes 66, 68 open on the outer circumferential surface of the annular pipe 60. Hereinafter, in the present embodiment, for convenience of explanation, the upward direction (the direction facing one end side in the extending direction of the axis La of the annular pipe 60) in Figs. 4, 5, and 7 is defined as the "upward direction" or "upper side", and the direction opposite to the upward direction (the direction facing the other end side in the extending direction of the axis La of the annular pipe 60) is defined as the "downward direction" or "lower side". The annular pipe 60 is an example of an implementation configuration corresponding to the "annular part" in the present invention, and the straight pipe 62 is an example of an implementation configuration corresponding to the "supply part" in the present invention. Further, the upward direction, that is, the direction facing one end side in the extending direction of the axis La of the annular pipe 60, is an example of an implementation configuration corresponding to the "first direction" in the present invention.

[0033] In the present embodiment, the ejection holes 64 are configured to include 11 ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, and 64k. The ejection holes 64 are arranged in a spiral shape. That is, the ejection holes 64 are arranged at regular intervals in the circumferential direction starting from the ejection hole 64a disposed substantially at the center in the extending direction of the axis La of the annular pipe 60, and the positions of the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k are gradually shifted upward in this order (see FIG. 7). Note that the ejection hole 64k is disposed at the same position as the ejection hole 64a in the circumferential direction of the annular pipe 60. In other words, it can be said that the ejection hole 64k is disposed directly above the ejection hole 64a in the extending direction of the axis La of the annular pipe 60. The ejection holes 64 and the ejection holes 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k correspond to the "first ejection holes" in the present invention, and the ejection hole 64a is an example of an implementation configuration corresponding to the "reference ejection hole" in the present invention. Further, the axis La of the annular pipe 60 is an example of an implementation configuration corresponding to the "axis of the annular portion" in the present invention.

[0034] Further, as shown in FIG. 8, the ejection holes 64 are arranged such that the intersection angle θ between the axis Lh1 and the axis La thereof gradually increases in the order of the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k. In other words, it can be said that the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k are arranged such that their openings are gradually inclined in a direction facing upward. FIG. 8(a) is a cross-sectional view showing the S-S cross section of FIG. 6, FIG. 8(b) is a cross-sectional view showing the T-T cross section of FIG. 6, and FIG. 8(c) is a cross-sectional view showing the U-U cross section of FIG. 6. Note that the ejection hole 64a is arranged such that the axis Lh1 and the axis La are orthogonal to each other, and the ejection hole 64k is arranged such that the axis Lh1 and the axis La are parallel to each other. Here, in the present embodiment, the intersection angle θ is defined as the angle that gradually increases among the two angles formed by the axis Lh1 and the axis La. The axis Lh1 is an example of an implementation configuration corresponding to the "first axis" in the present invention.

[0035] As shown in FIGS. 4, 5, and 9(a), the ejection holes 66 are arranged at substantially the center in the extending direction of the axis La of the annular pipe 60, at uniform intervals along the circumferential direction, and with their axis Lh2 orthogonal to the axis La of the annular pipe 60. FIG. 9(a) is a cross-sectional view showing the V-V cross section of FIG. 6. Note that the ejection holes 66 are arranged at positions different from those of the ejection holes 64 in the circumferential direction of the annular pipe 60. Thereby, it is possible to preferably suppress the vapor ejected from the ejection holes 66 from immediately colliding with the vapor ejected from the ejection holes 64 after being ejected from the ejection holes 66.

[0036] As shown in FIGS. 4, 5, and 9(b), the ejection holes 68 are arranged at the other end (the upper end in FIGS. 4 and 5) in the extending direction of the axis La of the annular pipe 60, at uniform intervals along the circumferential direction, and with their axis Lh3 having an upward inclination (angle α in FIG. 9) toward the radially outer side of the annular pipe 60. Note that the ejection holes 68 are arranged at positions different from those of the ejection holes 64 and 66 in the circumferential direction of the annular pipe 60. Thereby, it is possible to preferably suppress the vapor ejected from the ejection holes 68 from immediately colliding with the vapor ejected from the ejection holes 64 and 66 after being ejected from the ejection holes 68. The ejection holes 68 correspond to the "second ejection holes" in the present invention, and the axis Lh3 is an example of an implementation configuration corresponding to the "second axis" in the present invention.

[0037] As shown in FIGS. 4 and 5, the straight pipe 62 is integrally connected to communicate with the annular pipe 60 so as to extend parallel to the axis La of the annular pipe 60. In other words, it can be said that the straight pipe 62 extends upward from the annular pipe 60.

[0038] The steam ejection pipe 6 configured in this way is arranged inside the tapered portion 20 of the heating pipe 4 with a flow rectifying plate 70 integrated on the lower surface (the other end side in the extending direction of the axis La of the annular pipe 60, that is, the surface facing downward), as shown in FIGS. 3 and 11. At this time, the steam ejection pipe 6 is arranged coaxially with the heating pipe 4, more specifically, the inlet 20a of the tapered portion 20. In this state, a connecting pipe 29 with one end communicatively connected to the steam header 10 is communicatively connected to the straight pipe 62 (see FIGS. 1 and 3). As shown in FIG. 10, the flow rectifying plate 70 is configured as a disk having a circular hole 70a at the center. The flow rectifying plate 70 is integrated with the annular pipe 60 with the center of the circular hole 70a arranged on the axis La of the annular pipe 60. Here, the flow rectifying plate 70 is arranged to make the flow rate of steam passing through the circular hole 70a of the flow rectifying plate 70 substantially the same as the flow rate of steam passing through the annular gap between the inner peripheral surface of the tapered portion 20 and the outer peripheral surface of the annular pipe 60 or the flow rectifying plate 70. Therefore, as shown in FIGS. 11 and 12, the flow rectifying plate 70 is set to have an inner diameter and an outer diameter such that the annular gap area A1 formed between the inner peripheral surface of the tapered portion 20 and the outer peripheral surface of the annular pipe 60 with the flow rectifying plate 70 integrated is substantially the same as the area A2 of the circular hole 70a of the flow rectifying plate 70 in the state where the annular pipe 60 with the flow rectifying plate 70 integrated is arranged inside the tapered portion 20 of the heating pipe 4.

[0039] The steam header 10 is pressure-fed from a boiler (not shown), depressurized to a predetermined pressure by a pressure reducing valve (not shown), and supplies the steam collected in a state separated from water to each steam ejection pipe 6 arranged inside each heating pipe 4 through each connecting pipe 29.

[0040] As shown in Fig. 2, the aging pipe 8 is arranged on the right side along the longitudinal direction of the continuous soy milk heating device 1. That is, the aging pipe 8 is arranged in line with the three heating pipes 41, 43, 45 and continuously arranged after the heating pipe 45. Further, as shown in Fig. 1, the aging pipe 8 has a diameter larger than that of the heating pipe 4 and has substantially the same shape as the heating pipe 4. That is, the aging pipe 8 is configured as a cylindrical pipe having a longitudinal direction, and has tapered portions 30, 32 with gradually decreasing inner and outer diameters at both longitudinal ends. The tapered portion 30 has an inlet 30a, and the tapered portion 32 has an outlet 32a. A supply pipe 34 is communicatively connected to the inlet 30a, and a drain pipe 25 is communicatively connected to the end of the supply pipe 34 on the side opposite to the side where the inlet 30a is communicatively connected via a drain cock 25a. The inlet 30a and the outlet 32a are arranged coaxially with the aging pipe 8, more specifically, with the tapered portions 30, 32. In other words, it can be said that the inlet 30a and the outlet 32a are arranged coaxially. The other end of a connecting pipe 28, one end of which is communicatively connected to the outlet 22a of the heating pipe 45, is communicatively connected to the supply pipe 34. In other words, it can be said that the soy milk heated by the heating pipe 4 is introduced into the aging pipe 8 via the connecting pipe 28. One end of an outlet pipe 36 is connected to the outlet 32a. The other end of the outlet pipe 36 is communicatively connected to a squeezing machine (not shown) that can separate the soy milk aged in the aging pipe 8 into soy milk and okara. Inside the aging pipe 8, more specifically, inside the tapered portion 30, a steam ejection pipe 6 is also arranged. The other end of a connecting pipe 29, one end of which is communicatively connected to the steam header 10, is communicatively connected to the steam ejection pipe 6.

[0041] Next, the operation of the continuous soy milk heating device 1 configured in this way will be described, particularly the operation when the soy milk is heated by the heating tube 4. When the soy milk generated by a raw soy milk generation unit (not shown) is supplied through the pressure feed pipe 11 to the supply pipe 24 connected to the heating tube 41, the soy milk is introduced into the heating tube 41 (inside the tapered portion 20) from the inlet 20a toward the outlet 22a (in the longitudinal direction of the heating tube 41 (the direction along the axis)). The soy milk introduced into the inside of the tapered portion 20 from the inlet 20a toward the outlet 22a partly flows through the inner circumference of the annular tube 60 through the circular holes 70a of the flow rectifying plate 70, and the rest collides with the flow rectifying plate 70 and flows through the annular gap between the outer peripheral surface of the annular tube 60 and the inner peripheral surface of the tapered portion 20.

[0042] The wort flowing through the inner circumference of the annular pipe 60 via the circular hole 70a is heated by the steam ejected from the ejection holes 64 (ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k) of the annular pipe 60 when flowing through the inner circumference of the annular pipe 60. Here, since the ejection holes 64 (ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k) are arranged in a spiral shape, as shown in FIG. 13, an upward vortex flow can be generated in the flow of the wort passing through the inner circumference of the annular pipe 60 via the circular hole 70a and heading toward the outlet 22a. Thereby, the wort inside the heating pipe 41 can be uniformly heated while being stirred, and it is possible to satisfactorily suppress the inconvenience that unheated wort is sent to the subsequent process. At the same time, the heated wort does not flow back inside the heating pipe 41, the wort does not stay inside the heating pipe 41, and unheated raw wort is not discharged from the outlet 22a. As a result, good first-in first-out of the wort can be realized. Moreover, since the ejection holes 64 (ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k) are arranged only on the upper side from the approximate center in the extending direction of the axis La in the annular pipe 60, and the crossing angles θ of the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k with respect to the axis La of the annular pipe 60 are set to gradually increase in this order (since the inclination angle in the direction facing upward (the side where the outlet 22a is arranged) is set to gradually increase), an upward vortex flow can be more reliably generated in the flow of the wort by the steam ejected from the ejection holes 64 (ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k). Thereby, the wort flowing through the inner circumference of the annular pipe 60 is uniformly heated while being stirred by the upward vortex flow.

[0043] On the one hand, the wort flowing through the annular gap between the outer peripheral surface of the annular pipe 60 and the inner peripheral surface of the tapered portion 20 is heated by the steam ejected from the ejection holes 66 and 68 of the annular pipe 60 when passing through the gap. Here, the wort flowing through the annular gap is heated while receiving a radially outward force inside the heating pipe 41 by the steam ejected from the ejection hole 66, and then, by the steam ejected from the ejection hole 68, it is heated while receiving a force in the direction of an angle α (an angle with an upward inclination toward the radially outward direction) with respect to the axis of the heating pipe 41 (axis La of the annular pipe 60). In this way, inside the heating pipe 41, the wort flowing through the annular gap can be effectively heated without hindering the upward (the side where the outflow port 22a is arranged, which is the upper side in FIG. 13) flow of the wort. Moreover, the wort heated by the steam ejected from the ejection holes 66 and 68 and passing through the annular gap is uniformly heated while being stirred by the upward vortex by the steam ejected from the ejection hole 64 (ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k). In the present embodiment, since the area A2 of the circular hole 70a of the flow rectifying plate 70 and the annular gap area A1 between the outer peripheral surface of the annular pipe 60 and the inner peripheral surface of the tapered portion 20 are set to be substantially the same, the flow rate of the wort flowing through the inner circumference of the annular pipe 60 through the circular hole 70a and the flow rate of the wort flowing through the annular gap are substantially the same (substantially uniform). As a result, it is possible to suppress the occurrence of non-uniformity in the flow rate of the wort depending on the position inside the heating pipe 41, such that the flow rate of the wort flowing into the heating pipe 41 from the inlet 20a is the largest near the axial center of the heating pipe 41 and the flow rate of the wort decreases radially outward from the axial center. As a result, the heating of the wort inside the heating pipe 41 can be made more uniform.

[0044] In this way, the wort heated by the steam ejected from the steam ejection pipe 6 inside the heating pipe 41 passes continuously through the heating pipes 42, 43, 44, 45 in this order via the connecting pipe 28, and is uniformly heated by the steam step by step and directly in the same manner as the heating pipe 41. The wort that has completed heating is fed to the aging pipe 8 via the connecting pipe 28.

[0045] According to the continuous soy milk heating device 1 according to the present embodiment described above, since the steam ejection pipe 6 including the annular pipe 60 having the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k spirally arranged on the inner peripheral surface is arranged inside the cylindrical heating pipe 4 and inside the tapered portion 20 having the inlet 20a, it is possible to generate an upward vortex in the flow of soy milk flowing from the inlet 20a through the inner periphery of the annular pipe 60 toward the outlet 22a. As a result, the heated soy milk does not flow back inside the heating pipe 4, the soy milk does not stay inside the heating pipe 4, and the unheated raw soy milk is not discharged from the outlet 22a of the soy milk in the heating pipe 4. As a result, good first-in first-out of soy milk can be realized.

[0046] Further, according to the continuous soy milk heating device 1 according to the present embodiment, since the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k are arranged only on the upper side from the substantially center in the extending direction of the axis La in the annular pipe 60, it is possible to generate only an upward vortex in the flow of soy milk in the heating pipe 4. Further, since the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k are set so that the crossing angle θ with respect to the axis La of the annular pipe 60 gradually increases in this order (because it is inclined in the direction gradually upward (the side where the outlet 22a is arranged)), it is possible to more reliably generate an upward vortex inside the heating pipe 4.

[0047] Furthermore, according to the continuous soy milk heating device 1 according to the present embodiment, since the steam ejection pipe 6 has a plurality of ejection holes 66, 68 on its outer peripheral surface, the soy milk introduced from the inlet 20a into the interior of the heating pipe 4 can be well heated by the steam ejected from the ejection holes 66, 68 when flowing through the annular gap between the outer peripheral surface of the annular pipe 60 and the inner peripheral surface of the tapered portion 20. The soy milk flowing through the annular gap is heated while receiving a force directed radially outward of the heating pipe 4 by the steam ejected from the ejection hole 66, and then is heated while receiving a force directed in the direction of the angle α (an angle having an upward inclination toward the radially outward direction) with respect to the axis La of the heating pipe 4 by the steam ejected from the ejection hole 68. Therefore, the soy milk flowing through the annular gap can be effectively heated without inhibiting the flow of the soy milk from the inlet 20a toward the outlet 22a. Moreover, the soy milk heated by the steam ejected from the ejection holes 66, 68 and passing through the annular gap is uniformly heated while being stirred by an upward vortex by the steam ejected from the ejection hole 64 (ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k).

[0048] Also, according to the continuous soy milk heating device 1 according to the present embodiment, a rectifying plate 70 having a circular hole 70a is integrated with the surface of the steam ejection pipe 6 on the side facing the inlet 20a, and the area A2 of the circular hole 70a and the annular gap area A1 between the outer peripheral surface of the annular pipe 60 and the inner peripheral surface of the tapered portion 20 are set to be substantially the same. Therefore, the flow rate of the soy milk flowing through the inner circumference of the annular pipe 60 through the circular hole 70a and the flow rate of the soy milk flowing through the annular gap can be made substantially the same (substantially uniform). Thereby, it is possible to suppress the flow rate of the soy milk flowing into the interior of the heating pipe 4 from the inlet 20a from becoming non-uniform depending on the position (radial position) inside the heating pipe 4. As a result, the homogenization of the heating of the soy milk inside the heating pipe 4 can be further achieved.

[0049] In this embodiment, the ejection holes 64(64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k) are arranged on the inner peripheral surface of the annular pipe 60, but it is not limited thereto. For example, the ejection holes 64(64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k) may be arranged on the outer peripheral surface of the annular pipe 60.

[0050] In this embodiment, the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k are set such that the intersection angle θ with respect to the axis La of the annular pipe 60 gradually increases in this order, but it is not limited thereto. For example, the intersection angle θ may be constant regardless of the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k.

[0051] In this embodiment, the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k are configured such that each axis Lh1 intersects the axis La of the annular pipe 60, but it is not limited thereto. For example, the ejection holes 64a, 64b, 64c, 64d, 64e, 64f, 64g, 64h, 64i, 64j, 64k may be configured such that each axis Lh1 does not intersect the axis La of the annular pipe 60, for example, it may be configured to be inclined in the direction in which a vortex is to be generated in the circumferential direction of the annular pipe 60 with respect to the radial direction of the annular pipe 60.

[0052] In this embodiment, the ejection hole 66 is arranged such that the axis Lh2 of the ejection hole 66 is orthogonal to the axis La of the annular pipe 60, but it is not limited thereto. For example, the ejection hole 66 may be arranged such that the axis Lh2 has an upward inclination toward the outside in the radial direction of the annular pipe 60, or may be configured to be inclined in the direction in which a vortex is to be generated in the circumferential direction of the annular pipe 60 with respect to the radial direction of the annular pipe 60.

[0053] In this embodiment, the ejection holes 68 are arranged such that the axis Lh3 of the ejection holes 68 has an upward inclination toward the radially outer side of the annular pipe 60, but the present invention is not limited to this. For example, the ejection holes 68 may be arranged such that the axis Lh3 is perpendicular to the axis La of the annular pipe 60, or the axis Lh3 may be inclined with respect to the radial direction of the annular pipe 60 in the direction in which a vortex is to be generated in the circumferential direction of the annular pipe 60.

[0054] In this embodiment, the configuration includes the ejection holes 66 and 68, but the present invention is not limited to this. For example, only the ejection hole 66, or only the ejection hole 68 may be used, or a configuration having other ejection holes in addition to the ejection holes 66 and 68 may be used.

[0055] In this embodiment, the steam ejection pipe 6 is applied to the continuous soy milk heating device 1, but it may also be applied to a soy milk heating device that is not continuous.

[0056] <Supplementary Note> In view of the gist of the above invention, the steam ejection pipe according to the present invention and the soy milk heating device including the same can be configured in the following aspects. (Aspect 1) "A steam ejection pipe disposed inside a heating pipe into which soy milk generated by grinding soybeans immersed in water flows, and capable of ejecting steam inside the heating pipe, an annular portion having a plurality of first ejection holes, a supply portion communicatively connected to the annular portion for supplying the steam to the annular portion, and comprising the plurality of first ejection holes are arranged in a spiral shape along the circumferential direction of the annular portion steam ejection device" (Aspect 2) "The plurality of first ejection holes have a reference ejection hole disposed substantially at the center in the extending direction of the axis of the annular portion, and are arranged in a spiral shape from the reference ejection hole in a first direction in the extending direction of the axis of the annular portion The steam ejection pipe according to Aspect 1." (Aspect 3) "The plurality of first ejection holes each have a first axis, The first axis has an inclination such that the intersection angle with the axis of the annular portion becomes larger toward the first ejection hole disposed on the front side in the first direction. The steam ejection pipe according to the aspect 1 or 2. (Aspect 4) At least a part of the first ejection hole opens to the inner peripheral surface of the annular portion. The steam ejection pipe according to any one of aspects 1 to 3. (Aspect 5) The annular portion further has a plurality of second ejection holes. The plurality of second ejection holes open to the outer peripheral surface of the annular portion and are arranged along the circumferential direction of the annular portion. The steam ejection pipe according to the aspect 4. (Aspect 6) The plurality of second ejection holes each have a second axis. The second axis has an upward inclination toward the radially outer side of the annular portion. The steam ejection pipe according to the aspect 5. (Aspect 7) A heating device for heating go made by grinding soybeans soaked in water, A substantially cylindrical heating pipe having a longitudinal direction, A supply pipe coaxially connected and communicating at one end in the longitudinal direction of the heating pipe to supply the go to the inside of the heating pipe, A discharge pipe coaxially connected and communicating at the other end in the longitudinal direction of the heating pipe to discharge the go to the outside of the heating pipe, The steam ejection pipe according to any one of aspects 1 to 6 disposed coaxially inside the heating pipe at one end side in the longitudinal direction of the heating pipe, An annular disk shape having a circular hole with an inner diameter smaller than the inner diameter of the supply pipe and an outer diameter smaller than the inner diameter of the heating pipe, and a rectifying plate disposed coaxially with the steam ejection pipe between the supply pipe and the steam ejection pipe inside the heating pipe, Comprising Heating device. (Aspect 8) The rectifying plate has the inner diameter and the outer diameter such that the area of the circular hole is substantially equal to the area of the gap between the outer peripheral surface of the rectifying plate and the inner peripheral surface of the heating tube. The heating device according to the aspect 7.

Explanation of Signs

[0057] 1 Continuous soymilk heating device 2 Frame 4 Heating tube (heating tube) 6 Steam ejection tube (steam ejection tube) 8 Aging tube 10 Steam header 11 Pressure feed pipe 20 Tapered part 20a Inlet 22 Tapered part 22a Outlet 24 Supply pipe (supply pipe) 25 Drain pipe 25a Drain cock 28 Connection pipe (discharge pipe) 29 Connection pipe 30 Tapered part 30a Inlet 32 Tapered part 32a Outlet 34 Supply pipe 36 Outlet pipe 41 Heating tube (heating tube) 42 Heating tube (heating tube) 43 Heating tube (heating tube) 44 Heating tube (heating tube) 45 Heating tube (heating tube) 60 Annular tube (annular part) 62 Straight tube (supply part) 64 Ejection hole (first ejection hole) 64a Ejection hole (first ejection hole, reference ejection hole) 64b Ejection hole (first ejection hole) 64c Ejection hole (first ejection hole) 64d Ejection hole (first ejection hole) 64e Ejection hole (first ejection hole) 64f Ejection hole (first ejection hole) 64g ejection hole (first ejection hole) 64h ejection hole (first ejection hole) 64i ejection hole (first ejection hole) 64j ejection hole (first ejection hole) 64k ejection hole (first ejection hole) 66 ejection hole 68 ejection hole (second ejection hole) 70 rectifying plate (rectifying plate) 70a circular hole (circular hole) La axis of the annular tube 60 (axis of the annular part) Lh1 axis of the ejection hole 64 (first axis) Lh2 axis of the ejection hole 66 Lh3 axis of the ejection hole 68 (second axis) θ intersection angle (intersection angle) A1 annular gap area A2 area of the circular hole 70a α angle

Claims

A continuous soymilk heating device for heating okara produced by grinding soybeans soaked in water, comprising: a substantially cylindrical heating tube having a longitudinal direction; a supply pipe coaxially connected and communicating at one end in the longitudinal direction of the heating tube for supplying the okara into the heating tube; a discharge pipe coaxially connected and communicating at the other end in the longitudinal direction of the heating tube for discharging the okara to the outside of the heating tube; a steam ejection pipe disposed coaxially with the heating tube inside the heating tube at one end side in the longitudinal direction of the heating tube; an annular disk-shaped rectifying plate having circular holes with an inner diameter smaller than the inner diameter of the supply pipe and an outer diameter smaller than the inner diameter of the heating tube, and disposed coaxially with the steam ejection pipe between the supply pipe and the steam ejection pipe inside the heating tube; and comprising; the steam ejection pipe includes an annular portion having a plurality of first ejection holes, and a supply portion connected to the annular portion in communication for supplying the steam to the annular portion; the plurality of first ejection holes have a reference ejection hole disposed substantially at the center in the extending direction of the axis of the annular portion, and are arranged spirally along the circumferential direction of the annular portion from the reference ejection hole and in a first direction in the extending direction of the axis of the annular portion; an annular gap is provided between the outer peripheral surface of the steam ejection pipe or the outer peripheral surface of the rectifying plate and the inner peripheral surface of the heating tube; the circular holes constitute a first flow path through which the okara flows; the annular gap constitutes a second flow path through which the okara flows; the flow path area of the first flow path is equal to the flow path area of the second flow path Continuous soymilk heating device.

2. the plurality of first ejection holes each have a first axis; the first axis has an inclination such that the intersection angle with the axis of the annular portion becomes larger for the first ejection hole disposed more forward in the first direction; The continuous soymilk heating device according to claim 1.

3. at least a part of the first ejection holes opens to the inner peripheral surface of the annular portion The continuous soymilk heating device according to claim 1 or 2.

4. the annular portion further has a plurality of second ejection holes; the plurality of second ejection holes open to the outer peripheral surface of the annular portion and are arranged along the circumferential direction of the annular portion; The continuous soymilk heating device according to claim 3.

5. the plurality of second ejection holes each have a second axis; The second axis has an upward inclination toward the radially outer side of the annular portion. The continuous soy milk heating device according to claim 4.

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