JP5781264B2 - Heat exchanger structure for fluid products - Google Patents

Description

  The present invention relates to a heat exchanger structure for a fluid product, and more particularly, to a heat exchanger structure for a fluid product for exchanging heat of a highly viscous fluid product that has been subjected to sterilization or the like.

  Generally, in a fluid product manufacturing plant, when a fluid product subjected to sterilization treatment is subjected to heat exchange, a heat exchanger that circulates the fluid product in a pipe and performs heat exchange is used.

  In particular, when the fluid product is a high-viscosity product containing a solid material, a heat medium circulation part through which a heat medium that can exchange heat with the high-viscosity fluid product that circulates in the pipe circulates on the outer peripheral surface of the pipe. There is used a heat exchanger that is provided along a direction and is configured to circulate a fluid product in the pipe and to circulate a heat medium in the heat medium circulation part and to exchange heat of the fluid product in the pipe.

  However, when the fluid product is highly viscous, convection is unlikely to occur inside the fluid product, so only the portion of the circulating fluid product that passes through the vicinity of the heat medium circulation part is subjected to heat exchange and heat. The site | part away from the medium distribution part distribute | circulated without heat exchange, and the malfunction that the heat exchange efficiency may be low as the whole liquid product existed.

  Therefore, conventionally, for example, as shown in FIG. 5, an inner tube 65 in which a heat medium circulates is disposed in the tube (outer tube) 64 along the axial direction. The fluid product is circulated through the gap 69 between the outer tube 64 and the heat medium is circulated in the heat medium circulation portion 70 and the inner tube 65 provided on the outer peripheral portion of the outer tube 64, thereby allowing the fluid product to flow inside. A heat exchanger 66 formed by a triple pipe made of a straight pipe, which is configured to exchange heat from the outside and the outside, is used.

  In the heat exchanger 66 composed of such a conventional triple tube, the inner tube 65 is joined and fixed to the outer tube 64 through an O-ring 67 at the end so as to be slidable in the axial direction. It was configured to absorb thermal expansion and contraction in the axial direction of the outer tube 64 and the inner tube 65 due to a temperature difference between the fluid product and the heat medium in the outer tube 64.

  However, in the heat exchanger composed of a triple pipe configured as described above, when the end portion 68 of the inner pipe 65 protrudes outward from the outer pipe 64 due to thermal expansion, the inner pipe 65 is exposed to the outside air. When touching, there is a possibility that various germs in the outside air may adhere, and when it contracts and comes into contact with the fluid product, there is a risk of contamination of the fluid product. Heat exchange of the sterilized fluid product Cannot be used, and the usable range is limited.

On the other hand, in order to eliminate such problems, a heat exchanger using a U-shaped tube instead of a straight tube has been used. In the heat exchanger using such a U-shaped tube, the thermal expansion and contraction in the axial direction and the radial direction can be effectively absorbed by utilizing the U-shaped portion at the end.
However, the conventional heat exchanger composed of a U-shaped tube cannot be disassembled, and there is a problem that inspection work and internal cleaning work cannot be performed.

  Therefore, the problem of the present invention is that it can effectively absorb expansion and contraction due to the temperature rise due to the heat medium, ensure high sanitary properties, can be easily disassembled, and allows internal inspection and internal cleaning. Another object of the present invention is to provide a heat exchanger that can be applied to a highly viscous liquid food after sterilization containing solids.

In order to solve such a problem, the invention according to claim 1 includes an outer tube and an inner tube formed in a smaller diameter than the outer tube and disposed in the outer tube along the axial direction. A highly viscous fluid circulates between the inner tube and the outer tube, and a heat medium capable of exchanging heat with the highly viscous fluid circulates in the inner tube, and the outer tube is disposed on the peripheral surface portion of the outer tube. And a heat exchanger structure of a fluid product provided with a heat medium circulation part through which a heat medium capable of exchanging heat is exchanged between the high-viscosity fluid product flowing between the inner pipe and the inner pipe. And an inflow pipe portion that is formed separately from the pipe main body portion and is detachably joined to the end portion of the pipe main body portion. The end portion of the inflow pipe portion is open in the axial direction. A medium inlet portion is formed, and the inner pipe is disposed in the vicinity of the heat medium inlet of the heat medium inlet portion. An inner pipe flange portion projecting in the direction is provided, and the inflow pipe portion is fixed to the outer pipe by joining the inner pipe flange portion to an outer pipe flange portion provided at an end portion of the outer pipe, The tube main body portion is detachably fixed to the outer tube flange portion via a joining member that can absorb expansion and contraction in the axial direction and seal the fluid product against the outside air.

Therefore, in the first aspect of the present invention, the tube main body constituting the inner tube is detachably fixed to the axial end of the outer tube via a joining member capable of absorbing expansion and contraction in the axial direction. Therefore, the joining member absorbs thermal expansion or contraction of the inner tube and the outer tube due to the influence of the heat medium in the axial direction of the inner tube and the outer tube, and the joining member is solid with respect to the outside air. A fluid product, which is a liquid food with high viscosity and containing sterilization, is sealed.
Further, since the inner tube is detachably fixed to the outer tube, the inner tube can be detached from the outer tube. In the first aspect of the invention, only the inflow pipe part can be separated from the pipe body part and removed.

  The invention according to claim 2 is characterized in that the inner pipe flange portion is joined and fixed to the outer pipe flange portion in the axially outward direction of the outer pipe flange portion. Therefore, in the invention described in claim 3, the inner tube flange portion is joined and fixed or removed from the outside of the outer tube flange portion.

  According to a third aspect of the present invention, the joining member is made of a diaphragm material, and a diaphragm material is interposed between the inner tube flange portion and the outer tube flange portion.

  Therefore, in the invention according to claim 3, the inside and outside of the outer tube can be separated from each other by the diaphragm material, and the thermal expansion or contraction between the inner tube and the outer tube is caused by the diaphragm material. Is absorbed by.

  According to a fourth aspect of the present invention, a joint flange is formed at the end of the pipe body, and the radially inner end of the diaphragm material is fixed to the joint flange, and the diaphragm A radially outer end portion of the material is sandwiched between the outer tube flange portion and the inner tube flange portion.

  In the invention according to claim 5, the fluid product inlet portion is opened at the axial end portion of the outer tube, and the flange portion of the inner tube is orthogonal to the axial direction of the inner tube. The flange portion of the outer tube is provided orthogonal to the axial direction of the outer tube, and the flange portion formed on the tube main body portion is provided orthogonal to the axial direction of the tube body portion. It is characterized by being.

  The invention according to claim 6 is characterized in that a plurality of dimples are formed at a predetermined interval on the inner peripheral surface portion or the outer peripheral surface of the outer peripheral surface in contact with the fluid product. In the invention according to claim 6, either or both of the contact peripheral surface portions of the inner tube or the outer tube with the fluid product are constituted by so-called dimple tubes.

  The invention described in claim 7 is characterized in that spiral groove portions are formed at predetermined intervals on the peripheral surface portion of the inner pipe or the outer pipe in contact with the fluid product.

  Therefore, in the invention described in claim 7, either or both of the peripheral surface portions of the inner tube and the outer tube are constituted by so-called corrugated tubes.

  The invention according to claim 8 is characterized in that the fluid product is a highly viscous sterilized liquid food containing solid matter.

In the first aspect of the present invention, the tube main body portion constituting the inner tube is capable of absorbing expansion and contraction in the axial direction and at the axial end portion of the outer tube via a joining member capable of sealing the outside air. Because it is detachably fixed, and includes an inflow pipe portion that is formed separately from the tube body portion and the tube body portion and is detachably joined to the end of the tube body portion,
The joining member can effectively absorb the thermal expansion or contraction of the inner tube and the outer tube due to the influence of the heat medium in the axial direction of the inner tube and the outer tube. It is not necessary to slidably join the tube to the outer tube along the axial direction so that the end protrudes outward from the outer tube. It can not be used for heat exchange of fluid products that are liquid foods after high-viscosity sterilization including solid matter that has been sterilized by extending from the edge and touching the outside air and adhering germs in the atmosphere. It is possible to avoid the problem that the range is limited.

  Further, since the inner tube is detachably fixed to the outer tube, the inner tube can be removed from the outer tube and the inside of the tube can be easily inspected or the inside of the tube can be cleaned. Furthermore, since the said joining member can seal the fluid product which is the liquid food after a highly viscous sterilization containing the solid substance sterilized with respect to external air, high sanitary property can be ensured.

  The inner pipe includes a pipe main body part and an inflow pipe part joined to an end of the pipe main body part, and the inner pipe flange part is formed in the inflow pipe part. At the time of cleaning or at the time of cleaning, it is not necessary to remove the entire inner pipe, and it is only necessary to remove the inflow pipe portion, so that the overhaul and cleaning work can be easily performed.

  In the invention according to claim 3, since the inner tube flange portion is joined and fixed to the outer tube flange portion outside the outer tube flange portion in the axial direction, the inner tube is disposed after the outer tube is installed. Is inserted into the outer tube and the inner tube flange can be joined and fixed outwardly in the axial direction of the outer tube flange portion of the outer tube, so that it can be easily attached and detached.

  In the invention according to claim 4, since the diaphragm material is interposed between the inner tube flange portion and the outer tube flange portion, the inside and the outside of the outer tube are surely separated from each other. It is possible to perform heat exchange of a highly viscous fluid product sterilized while ensuring high sanitary properties.

  In addition, since the diaphragm material can be easily cleaned, it is possible to provide a heat exchanger structure excellent in cleaning properties while ensuring high sanitary properties as described above.

  In the invention according to claim 5, since the fluid product inlet port is formed at the axial end of the outer tube, the fluid product flows in from the inner tube end through which the heat medium flows. By doing so, the fluid product is uniformly contacted with the heat medium over the entire axial direction of the inner tube, so that the fluid product is efficiently heat-exchanged.

  The inner pipe flange is provided perpendicular to the axial direction of the inner pipe, and the outer pipe flange is provided perpendicular to the axial direction of the outer pipe and is formed in the pipe main body. Since the above-mentioned joining flange portion is provided orthogonal to the axial direction of the tube main body portion, when assembling the inner tube and the outer tube, it is easy to perform the joining operation of each flange portion, and the assembly is easy. A possible heat exchanger structure can be provided.

  In the invention described in claim 6, since a plurality of dimples are formed at a predetermined interval on the inner peripheral surface portion or the outer peripheral surface of the outer peripheral surface in contact with the fluid product, a normal straight tube is used. Than the case where the fluid product or the heat medium is in contact with the dimple, the fluid product or the heat medium is agitated, and the contact area between the fluid product and the heat medium is increased, so that the heat transfer coefficient is improved. A heat exchanger structure with higher heat exchange efficiency can be provided.

  Further, in the invention described in claim 7, since the spiral groove portions are formed at predetermined intervals on the contact peripheral surface portion of the inner tube peripheral surface portion or the outer tube with the fluid product, a normal straight pipe is provided. Compared to the case where the fluid product or the heat medium is in contact with the spiral groove portion, the fluid product or the heat medium is agitated and the contact area between the fluid product and the heat medium is increased. Thus, a heat exchanger structure with higher heat exchange efficiency can be provided.

  In the invention according to claim 8, since the fluid product is a liquid food after sterilization, the liquid food after sterilization can be effectively exchanged heat while maintaining high sanitary properties. Become.

It is an axial direction sectional view showing a first embodiment of a heat exchanger structure concerning the present invention, and is a figure showing a case where it joins via a diaphragm between an inner pipe flange and an outer pipe flange. It is an axial direction cross-section partial enlarged view showing a first embodiment of a heat exchanger structure according to the present invention. It is an axial direction sectional view showing the second embodiment of the heat exchanger structure concerning the present invention, and is a figure showing the case where it is formed in the whole U shape. It is an axial direction cross-section part enlarged view which shows 2nd embodiment of the heat exchanger structure which concerns on this invention, Comprising: It is a figure which shows the case where the inner side pipe | tube is joined and fixed to an outer side pipe | tube, without using a diaphragm material. . It is an axial sectional view showing an example of a conventional heat exchanger structure.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.
As shown in FIG. 1, the heat exchanger 40 according to the present embodiment includes an outer tube 10 and an inner tube 11 that is formed in a smaller diameter than the outer tube 10 and is disposed in the outer tube 10 along the axial direction. And.

  In the present embodiment, both the outer tube 10 and the inner tube 11 are not dimple tubes in which a large number of recesses are formed in the tube peripheral surface portion, or corrugated tubes in which spiral grooves are formed. In addition to the so-called straight pipe having a smooth peripheral surface portion, unlike the second embodiment, each is constituted by a straight pipe formed straight.

  A highly viscous fluid circulates between the inner tube 11 and the outer tube 10, and a heat medium capable of exchanging heat with the highly viscous fluid circulates in the inner tube 11, and on the peripheral surface portion of the outer tube 10. Is provided with a heat medium circulation part 12 through which a heat medium capable of exchanging heat between the highly viscous fluid product flowing between the outer pipe 10 and the inner pipe 11 flows.

  A heat medium inlet 14 is opened at one axial end of the inner tube 11 and a heat medium outlet 35 is opened at the other end. In addition, a fluid product outlet port 28 is provided at one end of the outer tube 10 in the axial direction so as to be substantially orthogonal to the axial direction, and a fluid product is disposed at the other axial end of the outer tube 10. An inflow port portion 38 protrudes in a direction opposite to the fluid product outflow port portion 28 in the radial direction.

  Further, the heat medium flow part 12 is formed to further bulge outward from the outer pipe main body part 29 and is formed by a pipe part 30 having a gap corresponding to a predetermined distance from the outer pipe main body part 29. A heat medium inlet 31 is formed at one end of the pipe 30 so as to be orthogonal to the axial direction of the outer pipe 10 so as to be adjacent to the fluid product outlet 28. Further, at the other end of the outer pipe 10, a heat medium outlet part 37 is extended in the opposite direction in the radial direction of the heat medium inlet part 31 to the heat medium circulation part 12.

As shown in FIG. 2, an outer tube flange portion 17 is formed at one end of the outer tube 10 in the axial direction, and the outer tube flange portion 17 is outward at a substantially right angle with respect to the axial direction of the outer tube. It is extended and formed. An O-ring portion 32 is formed at the inner side end of the outer pipe flange portion 17, and an O-ring 33 is disposed.
In the present embodiment, the inner tube 11 is detachably fixed to the axial end portion of the outer tube 10 via a diaphragm member 13 as a joining member capable of absorbing expansion and contraction in the axial direction. ing.

  A heat medium inlet portion 14 that opens in the axial direction is formed at an end portion of the inner tube 11, and an inner side that protrudes outward of the inner tube is formed in the vicinity of the heat medium inlet port 15 of the heat medium inlet portion 14. A tube flange portion 16 is provided, and the inner tube 11 is fixed to the outer tube 10 by joining the inner tube flange portion 16 to an outer tube flange portion 17 provided at an end portion of the outer tube 10. .

  The inner pipe 11 includes a pipe main body 18 disposed along the axial direction over the entire area of the outer pipe 10, and an inflow pipe 19 detachably joined to an end of the pipe main body 18. The inner pipe flange portion 16 is formed in the inflow pipe portion 19.

  A joining flange portion 20 is formed at an end of the tube main body portion 18 with a predetermined width, an O-ring portion 27 is formed on the opening side of the joining flange portion 20, and an O-ring is provided on the O-ring portion 27. 47 is arranged.

  The tube body 18 has substantially the same length as the outer tube 10, and the tube body 18 is disposed in the outer tube 10 along the axial direction as shown in FIGS. 1 and 2. In this case, the joint flange portion 20 of the tube main body portion 18 forming the inner tube 11 and the outer tube flange portion 17 of the outer tube 10 are configured to be disposed at the same position in the axial direction.

  The inflow pipe portion 19 has the same outer diameter as the inner diameter of the tube main body portion 18, a small diameter portion 21 that is slidably inserted into the end portion of the tube main body portion 18, and the small diameter portion 21. A large-diameter portion 22 formed outward and a tapered portion 23 formed between the small-diameter portion 21 and the large-diameter portion 22 are provided.

  An O-ring portion 24 is formed at the end of the small-diameter portion 21, and is pressed against the inner peripheral surface portion of the tube main body portion 18 via the O-ring 24 so as to be slidable in the axial direction.

  The inner pipe flange portion 16 is provided in the tapered portion 23, and extends from the base end portion to the outside with a width dimension larger than the width dimension of the joint flange portion 20, and the extension It is comprised by the junction part 26 bent at right angle from the edge part of the part 25 to the pipe main-body part 18 direction, and was formed in the substantially L shape.

  When the inflow pipe part 19 is inserted and arranged at the end of the pipe main body part 18, the inner pipe flange part 16 is arranged to face the outer pipe flange part 17, and in the radial direction, the inner pipe The outer end portions of the flange portion 16 and the outer pipe flange portion 17 are formed in a width dimension arranged at the same position.

  In the present embodiment, the inner tube 11 is detachably fixed to the axial end portion of the outer tube 10 via a diaphragm member 13 as a joining member capable of absorbing expansion and contraction in the axial direction. ing.

  The said diaphragm material 13 is formed in the whole ring shape, is arrange | positioned between the inner side pipe | tube 11 and the outer side pipe | tube 10, and is a product made from a fluororesin or a metal. As a result, the liquid product flowing between the inner tube 11 and the outer tube 10 comes into direct contact, but there is no problem in terms of strength.

  The diaphragm material 13 is interposed between the joint flange portion 20 and the outer tube flange portion 17 and the inner tube flange portion 16, and the joint flange portion 20 is a radially inner end of the diaphragm material 13. The outer tube flange portion 17 and the inner tube flange portion 16 are detachably fixed from the outside of the inner tube flange portion 16 via bolts 45 while being detachably fixed to the portion via bolts 44. .

  In this case, the radially outer end portion of the diaphragm material 13 is disposed in a step portion 46 formed at the inner end portion of the joint portion 26 of the inner tube flange portion 16, and between the outer tube flange portion 17. It is fixed so that it can be pinched.

  As shown in FIG. 1, at the other end of the heat exchanger 40, a clamp joint 43 is provided between the liquid product inlet 38 and the heat medium outlet 37, and the clamp joint is provided. The outflow side end 39 formed outward from the portion 43 is detachably attached so as to be separated from the heat exchanger main body 41. Further, an O-ring portion 36 is provided inside the clamp joint portion 43.

(Function)
Hereinafter, the operation of the heat exchanger 40 according to the present embodiment will be described.
As shown in FIGS. 1 and 2, the highly viscous sterilized liquid food containing solids flows from the fluid product inlet 38 into the gap 34 between the outer tube 10 and the inner tube 11. On the other hand, the heat medium flows into the inner pipe 11 from the heat medium inlet port 14 and circulates in the inner pipe 11 toward the heat medium outlet port 35, and at the same time from other heat medium inlet ports 31. It flows in and flows through the heat medium circulation part 12 in the direction of the heat medium outlet part 37.

Therefore, the liquid food is heat-exchanged from the inside by the heat medium in the inner tube 11 and also from the outside by the heat medium in the heat-medium circulation part 12, so that the liquid food contains high solids. Even a viscous liquid food is efficiently heat-exchanged in the gap 34.

Further, when the inner tube 11 or the outer tube 10 is thermally expanded or contracted in the axial direction by the heat medium, the inner tube 11 is fixed to the outer tube 10 via the diaphragm material 13. When the tube 11 is thermally expanded or contracted, as described above, the extending portion 25 of the inner tube flange portion 16 is formed to have a larger width than the joining flange portion 20, and the end portion of the extending portion 25 is formed. From the joint flange portion 20 to the extension portion 25 and the joint portion 26. A gap 36 is formed, and the joining flange portion 20 approaches or separates from the extending portion 25 while the diaphragm material 13 is bent in the gap 36.

Similarly, when the outer tube 10 is thermally expanded or contracted, the diaphragm material 13 is similarly moved relative to the inner tube 11 along the axial direction while being bent.
As a result, the diaphragm material 13 can effectively absorb the thermal expansion or contraction of the inner tube 11 and the outer tube 10.

Furthermore, when inspecting or cleaning the inside of the heat exchanger 40, first, the bolt 45 that fixes the inner pipe flange portion 16 to the outer pipe flange portion 17 is loosened, and the inflow pipe portion 19 is removed in the axial direction.

Thereafter, the bolts 44 are loosened and the diaphragm material 13 is removed, so that the gap 34 between the inner tube 11 and the outer tube 10 can be exposed to the outside. be able to.

When the inspection operation or the cleaning operation is completed, the diaphragm material 13 can be easily and quickly fixed to the joining flange portion 20 via the bolt 44 by the procedure opposite to the above procedure, and the inflow pipe portion. 19 can be inserted and arranged at the end of the tube body 18 and fixed to the outer flange 17 via the bolt 45 to perform the heat exchange operation.

(Second embodiment)
Next, a second embodiment of the heat exchanger structure according to the present invention will be described.
As shown in FIGS. 3 and 4, the heat exchanger 50 according to the present embodiment is formed in a U-shape as a whole, unlike the heat exchanger 40 according to the above-described embodiment. No diaphragm material is disposed between the outer pipe 51 and the outer pipe 51. The basic configuration other than this difference is the same as that of the heat exchanger 40 according to the above embodiment. Accordingly, members having the same configuration are denoted by the same reference numerals and description thereof is omitted.

That is, the outer tube 51 and the inner tube 52 are formed by bending in a U-shape as a whole, and have a pair of straight tube portions 53 and 53 having a heat medium outlet port 35 at their ends, and the pair of straight tube portions 53. 53, a U-shaped pipe portion 54 that is detachably joined to the straight pipe portions 53, 53 via a clamp joint portion 43 at the end of the counter-heat medium inlet of 53,.
Further, an O-ring portion 36 is provided inside the clamp joint portion 43.

Unlike the above-described embodiment, the inner tube flange portion 55 is detachably fixed to the outer tube flange portion 56 and the joining flange portion 57 via bolts 58 and 59 without using a diaphragm material. Yes.

That is, the inner pipe flange portion 55 is provided at a position closer to the rear end portion in the axial direction in the inflow pipe portion 19, that is, closer to the pipe main body portion 18 than in the case of the above-described embodiment. It has a protrusion 60 protruding in the direction of the counterflow inlet.

The joint flange portion 57 is fixed to the inner tube flange portion 55 at an inner portion of the protrusion 60, and the outer tube flange portion 56 is fixed to the inner tube flange portion 55 at an outer portion of the protrusion 60. It is fixed.

The protrusion 60 is formed to have a width dimension smaller than the thickness dimension of the joint flange part 57 and the outer pipe flange part 56, and between the protrusion 60 and the joint flange part 57 and the outer pipe flange part 56. A seal member 61 is disposed on the surface. In the present embodiment, the sealing member is made of hard rubber and is coated with a fluororesin coating.

Further, as shown in FIG. 4, the inner pipe flange portion 55 is detachably fixed to the joint flange portion 57 by bolts 58 at the inner portion, and at the outer portion to the outer flange portion 56 by bolts 59. It is detachably fixed.

(Function)
Hereinafter, the operation of the heat exchanger 50 according to the second embodiment will be described. In addition, description is abbreviate | omitted about the effect | action same as the said embodiment.

In the heat exchanger 50 according to the present embodiment, when the inner tube 52 or the outer tube 51 is thermally expanded or contracted by the heat medium, the U-shaped tube portion 54 can absorb the thermal expansion or contraction. .

When inspecting or cleaning the inside of the heat exchanger 50, the bolt 58 is loosened to release the fixing between the inner pipe flange portion 55 and the joint flange portion 57, and the bolt 59 is loosened. As a result, the fixing between the inner tube flange portion 55 and the outer tube flange portion 56 is released.

Then, since the space | gap 34 between the inner side pipe | tube 11 and the outer side pipe | tube 10 can be exposed by extracting the inflow pipe part 19 from the pipe | tube main-body part 18, an inspection or an internal cleaning operation | work can be performed suitably.

In addition, in each said form, although the peripheral surface part of the inner side pipe | tube 11 and the outer side pipe | tube 10 demonstrated as an example the case where it was formed smoothly, it is not limited to said each embodiment, The said inner side pipe | tube 10 A so-called “dimple tube” in which a plurality of dimples are formed at predetermined intervals may be used on the peripheral surface portion, the peripheral surface portion of the outer tube 11 in contact with the fluid product, or the peripheral surface portion of the outer tube 11.

Furthermore, a so-called “corrugated tube” in which spiral grooves are formed at predetermined intervals may be used on the inner peripheral surface portion or the outer peripheral surface of the outer peripheral surface in contact with the fluid product.
As described above, when a dimple tube or a corrugated tube is used, the liquid food and the heat medium enter the dimples or the groove portion, compared with the case where the peripheral surface portions of the inner tube 11 and the outer tube 10 are smooth, Since the opportunity for replacement increases, a heat exchanger capable of performing more efficient heat exchange can be provided.

The present invention is widely applicable to heat exchanger structures used for heat exchange of fluid products.

DESCRIPTION OF SYMBOLS 10 Outer pipe 11 Inner pipe 12 Heat medium distribution part 13 Diaphragm material 14 Heat medium inflow part 15 Heat medium inflow part 16 Inner pipe flange part 17 Outer pipe flange part 18 Pipe body part 19 Inflow pipe part 20 Joint flange part 21 Small diameter part 22 Large-diameter portion 23 Tapered portion 24 O-ring portion 25 Extension portion 26 Joint portion 27 O-ring 28 Fluid product outlet portion 29 Outer pipe body portion 30 Tube portion 31 Heat medium inlet portion 32 O-ring portion 33 O-ring 34 Gap 35 Heat medium outlet portion 36 O ring portion 37 Heat medium outlet portion 38 Fluid product inlet portion 39 Outflow side end portion 40 Heat exchanger 41 Heat exchanger body 42 O ring 43 Clamp joint portion 44 Bolt 45 Bolt 46 Step portion 47O Ring 50 Heat exchanger 51 Outer tube 52 Inner tube 53 Straight tube portion 54 U-shaped tube portion 55 Inner tube flange portion 56 Outer tube flange portion 57 Joining flange Part 58 volts 59 volts 60 protrusions 61 the sealing member 64 the outer tube 65 the inner tube 66 heat exchanger 67 O-ring 68 end

Claims (8)

  An outer tube and an inner tube formed in a smaller diameter than the outer tube and disposed along the axial direction in the outer tube; a highly viscous fluid flows between the inner tube and the outer tube; and A heat medium capable of exchanging heat with the high-viscosity fluid flows in the inner tube, and heat exchange can be performed for the high-viscosity fluid product flowing between the outer tube and the inner tube on the peripheral surface portion of the outer tube. In the heat exchanger structure of the fluid product provided with the heat medium flow part through which the heat medium flows,
  The inner pipe includes a pipe main body part, and an inflow pipe part that is formed separately from the pipe main body part and is detachably joined to an end of the pipe main body part,
  A heat medium inlet port that opens in the axial direction is formed at an end of the inflow pipe portion, and an inner tube flange portion that protrudes outward from the inner tube in the vicinity of the heat medium inlet of the heat medium inlet port. Is provided,
The inflow pipe part is fixed to the outer pipe by joining the inner pipe flange part to the outer pipe flange part provided at the end of the outer pipe,
  The fluid product characterized in that the pipe body part is detachably fixed to the outer pipe flange part via a joining member capable of absorbing expansion and contraction in the axial direction and sealing the fluid product against the outside air. Heat exchanger structure.   2. The heat exchanger structure for a fluid product according to claim 1, wherein the inner tube flange portion is joined and fixed to the outer tube flange portion outside the outer tube flange portion in the axial direction.   The fluid product heat exchanger structure according to claim 1, wherein the joining member is made of a diaphragm material, and a diaphragm material is interposed between the inner tube flange portion and the outer tube flange portion.   A joint flange is formed at the end of the tube body, the radially inner end of the diaphragm is fixed to the joint flange, and the radially outer end of the diaphragm is the outer 2. A heat exchanger structure for a fluid product according to claim 1, wherein the heat exchanger structure is sandwiched between a pipe flange part and the inner pipe flange part.   The fluid product outlet is formed at the axial end of the outer pipe, the inner pipe flange is provided orthogonal to the axial direction of the inner pipe, and the outer pipe flange is the outer pipe. The joint flange portion formed in the tube main body portion is provided orthogonal to the axial direction of the tube main body portion, and is provided orthogonal to the axial direction of the tube main body portion. A heat exchanger structure for the fluid product described.   2. The fluid product heat exchanger structure according to claim 1, wherein a plurality of dimples are formed at predetermined intervals on a contact peripheral surface portion of the inner tube or the outer tube with the fluid product.   2. The fluid product heat exchanger structure according to claim 1, wherein spiral groove portions are formed at predetermined intervals on a contact peripheral surface portion of the inner tube peripheral surface portion or the outer tube with a fluid product.   2. The fluid product heat exchanger structure according to claim 1, wherein the fluid product is a highly viscous sterilized liquid food containing solid matter.