JP4296117B2 - Multi-tube heat exchanger - Google Patents

Description

  The present invention relates to a multitubular heat exchanger used for heating or cooling a liquid to be treated, and more particularly to a multitubular heat exchanger suitable for heating or cooling a liquid to be treated containing solids. .

  As shown in FIGS. 14 and 16, in order to efficiently heat or cool the liquid to be treated, conventionally, a heat exchange medium for heating or cooling (reference numeral 30 indicates a heat exchange medium storage unit) is filled. A plurality of liquid circulation pipes (tubes) 32 are arranged in parallel inside the storage pipe (shell) 31, and the heat treatment liquid is distributed and circulated in each heat transfer pipe 32 via the expansion pipes 33 and the U-shaped pipes 34. A multitubular heat exchanger 35 is used.

By the way, in the case where the liquid to be heat-treated includes the solid material 36, for example, in the case of including a fiber having a predetermined size called “Sano” like fruit juice, conventionally, the plurality of liquid circulation pipes 32 are conventionally used. Were arranged at a spacing dimension W smaller than the length dimension of the fiber such as “Sano”. As a result, when the liquid is distributed and sent to each heat transfer tube 32, both ends of the solid material 36 straddle the inside of the two adjacent heat transfer tubes 32, and are provided at the tip of the heat transfer tube 32 by the liquid flow pressure. In some cases, it was pushed against the end face closing plate 37 and accumulated.

If it will be in the above states, the solid substance 36 will adhere and accumulate on the said end surface closing plate 37 located around the opening edge part 38 of each heat exchanger tube 32. FIG. Therefore, it is necessary to remove such solid matter 36 from the end face closing plate 37, but the solid matter 36 cannot be removed only by circulating the washing liquid in the heat exchanger 35 and washing.
Therefore, in such a case, the expansion tube 33 and the U-shaped tube 34 connected to the outer tube 31 of the heat exchanger 35 must be removed, and the solid matter 36 must be removed by hand washing, and the cleaning operation is extremely complicated. There was a problem of being.

  In addition, although this applicant investigated the prior art which can eliminate said malfunction, it could not find the related prior art literature.

  Then, this invention makes it a subject to remove the connection pipe connected to the heat exchanger, and to provide the multi-tube heat exchanger which does not need to remove the solid substance deposited on the end surface closing plate by hand washing.

In order to solve the above-mentioned problem, a multitubular heat exchanger according to the present invention as set forth in claim 1 is a fluid containing a solid material having a predetermined dimension and arranged along an axial direction at a predetermined interval from each other. A plurality of liquid circulation pipes through which the liquid to be treated for food flows, a closing plate to which openings of the plurality of liquid circulation pipes are fixed at ends of the liquid circulation pipes, and the closing plate being an end part The plurality of liquid circulation pipes are housed inside via the closing plate, and a storage pipe having a heat exchange medium sealed between the liquid circulation pipes is provided to circulate in the liquid circulation pipe A multi-tubular heat exchanger for exchanging heat of the liquid to be treated, wherein the liquid circulation pipe is arranged with a gap size larger than a predetermined dimension of the solid matter contained in the liquid to be treated. And

That is, in the multitubular heat exchanger according to the first aspect of the present invention, the liquid to be treated is distributed and flows into the plurality of liquid circulation pipes, and between the liquid circulation pipes in the storage pipe. It is heated or cooled by the enclosed heat exchange medium.
And since the said liquid distribution pipe is arrange | positioned by the space | interval dimension larger than the length dimension of the solid substance contained in a to-be-processed liquid, the both ends of a solid substance accumulate over two adjacent liquid distribution pipes. There is no such a situation, and it flows into one of the liquid circulation pipes.

  Further, in the multitubular heat exchanger according to the second aspect of the present invention, a joint pipe having a taper that expands toward the downstream is connected to the storage pipe, and the pipe is covered through the joint pipe. A treatment liquid is supplied.

  That is, in the multitubular heat exchanger according to the second aspect of the present invention, the liquid to be treated flows into the liquid circulation pipe through the joining pipe. Since the joining pipe is tapered so as to extend downstream, the liquid to be treated is supplied from a pipe having a smaller diameter than the housing pipe to each liquid circulation pipe in the housing pipe via the joining pipe. be able to.

  According to a third aspect of the present invention, in the multitubular heat exchanger according to the present invention, the liquid to be treated is connected to the storage pipe via a distribution pipe that can be joined to a plurality of liquid circulation pipes arranged inside the storage pipe. Is provided.

  That is, in the multitubular heat exchanger according to the third aspect of the present invention, the liquid to be treated flows into each liquid circulation pipe via each distribution pipe. And when the diameter of the said storage pipe is small, the space | interval dimension between the inlets of each distribution pipe is made into the outside of a diameter direction by bending the upstream edge part of each distribution pipe to the outer side of a diameter direction. It can be larger than the length dimension.

  Further, in the multitubular heat exchanger according to the present invention as set forth in claim 4, the storage pipe is joined with a distribution pipe that can be joined to a plurality of liquid circulation pipes arranged inside the storage pipe, respectively. The upstream side of the distribution pipe is connected to a joining pipe having a taper that expands toward the downstream, and the liquid to be treated is supplied to the liquid circulation pipe through the joining pipe and the distribution pipe. To do.

  That is, in the multi-tube heat exchanger according to the present invention as set forth in claim 4, the liquid to be treated flows into the liquid circulation pipes through the distribution pipes and the junction pipes. And while supplying a to-be-processed liquid to each distribution pipe via a joining pipe from a pipe with a small diameter, supplying a to-be-processed liquid from each distribution pipe to each liquid distribution pipe arranged in a storage pipe with a small diameter it can.

  The multitubular heat exchanger according to the present invention described in claim 5 is a swirl flow capable of generating a swirl flow along the diameter direction of the storage tube at the inflow side end of the liquid flow tube of the storage tube. A generating portion is provided, and the swirling flow generating portion includes a short cylindrical gap having the same axial direction as the storage tube, and is disposed so as to include all the openings of the plurality of liquid circulation tubes. It is characterized by that.

That is, in the multi-tubular heat exchanger according to the present invention as set forth in claim 5, the short cylindrical gap provided at the position facing the openings of the plurality of liquid flow pipes in the swirling flow generating section is to be processed. By swirling the liquid, solids are prevented from being deposited at the openings of the plurality of liquid circulation pipes.
In the invention of claim 6, a plurality of liquids that are disposed along the axial direction at predetermined intervals and in which liquids to be processed for fluid food containing solids having predetermined dimensions circulate. A flow pipe, a closing plate to which openings of the plurality of liquid flow tubes are fixed at ends of the liquid flow pipes, and the closing plate fixed to an end, and the plurality of liquids via the closing plate A multi-tubular heat exchanger for storing heat in a liquid to be treated that circulates in the liquid circulation pipe, and having a storage pipe having a heat exchange medium enclosed between the liquid circulation pipes, a is, above housing tube, both the via distribution pipe which can be joined to a plurality of the liquid flow pipe which is disposed within housing tube target liquid is supplied, the upstream end of the distribution pipe The opening is larger than the predetermined dimension of the solid matter Characterized in that it is arranged by law.
Further, in the invention according to claim 7, a plurality of liquids to be processed for fluid food that are disposed along the axial direction at predetermined intervals and contain solids having predetermined dimensions are circulated inside. Liquid flow pipes, closing plates to which the openings of the plurality of liquid flow pipes are fixed at the ends of the liquid flow pipes, the closing plates are fixed to the end parts, and the plurality of the plurality of liquid flow pipes through the closing plates. And a storage pipe having a heat exchange medium enclosed between the liquid circulation pipes, and heat-exchange the liquid to be processed flowing through the liquid circulation pipe. The storage pipe is connected to distribution pipes that can be respectively connected to a plurality of liquid flow pipes arranged inside the storage pipe, and the upstream side of the distribution pipe is expanded toward the downstream. The connecting pipe with the taper that opens is connected, the above Through the focus tube and dispensing tube target liquid is supplied to the liquid flow pipe, that it is arranged by a large spacing dimension than a predetermined size opening of the upstream end of the distribution pipe with the above solid Features.

The multi-tube heat exchanger according to the present invention as set forth in claim 1 is provided with a liquid to be processed for fluid food , which is disposed along the axial direction at predetermined intervals and contains solids having predetermined dimensions. A plurality of liquid flow pipes that circulate, a closing plate to which the openings of the plurality of liquid flow pipes are fixed at the ends of the liquid flow pipes, the closing plate is fixed to the end, and the closing plate is The plurality of liquid circulation pipes are housed inside, and a storage pipe having a heat exchange medium sealed between the liquid circulation pipes is provided to exchange heat between the liquids to be treated flowing through the liquid circulation pipes. In the multitubular heat exchanger, the liquid circulation pipe is arranged with a gap size larger than a predetermined dimension of the solid matter contained in the liquid to be treated. When it flows into each liquid circulation pipe, the solid matter Across the between two adjacent fluid transfer tube can be prevented from being fixed by the liquid flow pressure.
Therefore, since solids are less likely to adhere to and accumulate on the closing plate, it is possible to easily perform the cleaning process simply by circulating the cleaning liquid in the heat exchanger. The trouble of removing the pipe connected to the heat exchanger and removing the solid matter accumulated on the closing plate by hand washing is eliminated. As a result, solid matter accumulation can be prevented.

  In the multi-tube heat exchanger according to the present invention as set forth in claim 2, the storage pipe is connected to a joining pipe having a taper that expands toward the downstream, and the liquid to be treated is connected through the joining pipe. Therefore, even if the diameter of the pipe for supplying the liquid to be processed to the storage pipe is small, the interval between the inlets of the liquid circulation pipes is included in the liquid to be processed through the joint pipe. It can be easily made larger than the length of the solid.

  In the multitubular heat exchanger according to the present invention as set forth in claim 3, the liquid to be treated is supplied to the storage pipe via distribution pipes that can be joined to a plurality of liquid flow pipes arranged inside the storage pipe. Therefore, even if the storage pipe has a small diameter and a sufficient interval between the liquid circulation pipes cannot be taken, the upstream end of each distribution pipe is connected in the diametrical direction through each distribution pipe. By bending outward, the distance between the inlets of the distribution pipes can be made larger than the length of the solid contained in the liquid to be treated.

  In the multitubular heat exchanger according to the present invention as set forth in claim 4, the storage pipe is connected to a distribution pipe that can be connected to each of a plurality of liquid flow pipes arranged inside the storage pipe. A connecting pipe with a taper that expands toward the downstream is connected to the upstream side of the pipe, and the liquid to be treated is supplied to the liquid circulation pipe through the connecting pipe and the distribution pipe. Even if the diameter of the pipe for supplying the liquid to be processed is small and the diameter of the storage pipe is small and the liquid circulation pipes cannot be sufficiently spaced, the pipes are connected through the joint pipe and the distribution pipe. The distance between the inlets of the distribution pipes can be easily made larger than the length of the solid contained in the liquid to be treated.

The multitubular heat exchanger according to the present invention as set forth in claim 5 is a swirl flow generating portion capable of generating a swirl flow along the diameter direction of the storage tube at the inflow side end of the liquid flow tube of the storage tube. And the swirling flow generating portion is provided with a short cylindrical gap having the same axial direction as the storage tube, and is disposed so as to include all the openings of the plurality of liquid circulation tubes. , By swirling the liquid to be treated in a short cylindrical gap provided at a position facing the openings of the plurality of liquid circulation pipes in the swirling flow generation section, solids are deposited at the openings of the plurality of liquid circulation pipes. Therefore, it is possible to prevent the inflow of the liquid to be processed into each liquid flow pipe due to the accumulation of the solid matter.
In the invention of claim 6, wherein, in the above storage tube, through a distributor tube which can be joined to a plurality of the liquid flow pipe which is disposed within housing tube when the treatment liquid is supplied together the Since the opening at the upstream end of the distribution pipe is arranged with a spacing dimension larger than the predetermined dimension of the solid material, a fixed object in the liquid to be treated is caught and accumulated between the openings of each liquid circulation pipe. The situation itself can be prevented.
In the invention according to claim 7, the storage pipe is joined to a plurality of liquid flow pipes arranged inside the storage pipe, respectively, and is connected to the upstream side of the distribution pipe. Is connected to a joint pipe with a taper that expands toward the downstream, and the liquid to be treated is supplied to the liquid flow pipe through the joint pipe and the distribution pipe, and the upstream end of the distribution pipe is opened. Since the section is arranged with a gap dimension larger than the predetermined dimension of the solid material, it is possible to prevent a situation in which a fixed object in the liquid to be treated is caught and accumulated between the openings of each liquid circulation pipe. Can do.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 9, the multitubular heat exchanger 1 according to the present embodiment is a fluid food containing solids that are arranged along the axial direction at predetermined intervals and have predetermined dimensions. a plurality of liquid flow pipe 2 in which the processing liquid use is flowing inside, a closing plate 4 in which the plurality of open end 3 of the liquid flow pipe 2 is fixed at their ends of the liquid flow pipe 2, the A closing plate 4 is fixed to an end portion, and the plurality of liquid circulation pipes 2 are accommodated therein via the closing plate 4, and a storage pipe 6 having a heat exchange medium sealed between the liquid circulation pipes 2. The liquid to be treated in the liquid circulation pipe 2 is exchanged with heat, and the plurality of liquid circulation pipes 2 have an interval dimension larger than the length dimension of the solid matter 36 contained in the liquid to be treated. Has been placed.
Further, as shown in FIG. 1, a joining pipe 9 with a taper 8 that expands toward the downstream is connected to the storage pipe 6, and the liquid to be treated is supplied through the joining pipe 9. It is configured as follows.
Further, as shown in FIG. 3, the liquid to be treated is supplied to the storage pipe 6 through distribution pipes 10 that can be joined to the plurality of liquid circulation pipes 2 arranged inside the storage pipe 6. It is configured.
Further, as shown in FIG. 5, a distribution pipe 10 that can be connected to each of the plurality of liquid circulation pipes 2 disposed inside the storage pipe 6 is joined to the storage pipe 6, and upstream of the distribution pipe 10. A joining pipe 9 with a taper 8 that expands toward the downstream is connected to the side, and the liquid to be treated is supplied to the liquid circulation pipe 2 through the joining pipe 9 and the distribution pipe 10. ing.
Further, as shown in FIGS. 7 and 8, a swirl flow generator 11 capable of generating a swirl flow along the diameter direction of the storage tube 6 is provided at the inflow side end portion of the liquid circulation tube 2 of the storage tube 6. The swirl flow generating portion 11 is provided with a short cylindrical gap 12 having the same axial direction as the storage tube 6 and is disposed so as to include all the open end portions 3 of the plurality of liquid circulation tubes 2. Has been.

  As shown in FIG. 1, the multi-tube heat exchanger 1 according to the first embodiment shown in FIGS. 1 and 2 includes a plurality of liquid circulation pipes through which the liquid to be treated is circulated. 2 are arranged along the axial direction at predetermined intervals.

  As shown in FIG. 1, the liquid flow pipe 2 has an open end 3 of the liquid flow pipe 2 fixed by a closing plate 4 at the end thereof.

  Further, as shown in FIG. 1, the inside of the closing plate 4, the space between the liquid circulation pipes 2 inside the storage pipe 6, the inner surface of the storage pipe 6, and the liquid circulation pipe 2. Is formed as a heat exchange medium storage unit 5, and a heat exchange medium for heating or cooling the liquid to be processed flowing in the liquid circulation pipe 2 is enclosed in the heat exchange medium storage unit 5.

As shown in FIG. 2, the liquid flow pipe 2 has an opening end portion 3 arranged with an interval dimension X larger than the length dimension of the solid material 36 contained in the liquid to be processed.
In addition, since fruit juice is used as the liquid to be treated in Example 1, the length of the solid material 36 called “Sano” contained in the fruit juice is approximately 15 mm or less, so that the interval is The dimension X is set to 15 mm or more.
However, if the liquid to be treated is different, the length dimension of the solid matter 36 contained in the liquid to be treated is also increased or decreased. Therefore, if the liquid to be processed is different, the interval dimension X is naturally increased or decreased accordingly.

As shown in FIG. 1, a connecting pipe 9 having a taper 8 that expands toward the downstream is connected to the upstream end of the storage pipe 6. That is, the liquid to be processed is supplied into each liquid circulation pipe 2 via the joining pipe 9.
As shown in FIG. 1, the joining tube 9 has its flange 41 fixed together with the flange 40 of the closing plate 4 by a clamp 39.

  Although not shown in the drawing, a liquid supply pipe is connected to the upstream side of the joint pipe 9. Even if the diameter of the liquid supply pipe is small, the opening end can be changed by changing the angle of the taper 8. The spacing dimension X of the part 3 can be sufficiently taken.

When the liquid to be processed flows from the joint pipe 9 into the liquid circulation pipes 2, the solid matter 36 contained in the liquid to be processed does not smoothly flow into the liquid circulation pipe 2, and the solids 36 on the closing plate 4. There can be a situation where they abut and remain in that position due to the hydraulic pressure.
However, since the gap dimension X of the open end 3 is set larger than the length dimension of the solid material 36, the solid material 36 is closed so that both ends of the solid material 36 straddle the two adjacent liquid flow pipes 2. It does not get caught on the plate 4. Therefore, the solid matter 36 is easily removed only by circulating the cleaning liquid in the heat exchanger and does not accumulate on the closing plate 4.

Next, as shown in FIG. 3, the multitubular heat exchanger 1 according to the second embodiment shown in FIGS. 3 and 4 also includes a plurality of liquids to be treated in the storage pipe 6. The liquid circulation pipes 2 are arranged along the axial direction at a predetermined interval.
As shown in FIG. 3, the liquid flow pipe 2 has an open end 3 of the liquid flow pipe 2 fixed by a closing plate 4 at its end.
In addition, as shown in FIG. 3, the liquid to be treated that circulates in the liquid circulation pipe 2 is located inside the closing plate 4 and between the liquid circulation pipes 2 inside the storage pipe 6. A heat exchange medium to be heated or cooled (reference numeral 5 denotes a heat exchange medium storage portion) is enclosed.
The above structure is the same as that of the first embodiment.

  However, as shown in FIG. 3, the multi-tube heat exchanger 1 of the second embodiment can be joined to the storage pipe 6 with a plurality of liquid circulation pipes 2 arranged inside the storage pipe 6. The liquid to be processed is supplied through the distribution pipe 10.

  As shown in FIG. 3, the distribution pipe 10 has substantially the same diameter as the liquid circulation pipe 2, and the upstream end of the distribution pipe 10 is bent outward in the diameter direction except for the central distribution pipe 10. Has been. And as shown in FIG. 4, the space | interval dimension Y of the opening part 13 of each distribution pipe 10 is set larger than the length dimension of the solid substance 36 contained in a to-be-processed liquid.

  As shown in FIG. 3, a single communication pipe 14 having substantially the same diameter as each distribution pipe 10 and substantially perpendicular to each distribution pipe 10 is connected to the upstream end of each distribution pipe 10. . One end of the communication pipe 14 is closed, and the other end of the communication pipe 14 is connected to a liquid supply pipe 15 that is substantially orthogonal to the communication pipe 14 so as to communicate with the inside.

The liquid to be treated that has flowed into the communication pipe 14 from the liquid supply pipe 15 is distributed from the communication pipe 14 and flows into the distribution pipes 10, and is further fed from the distribution pipes 10 to the liquid circulation pipes 2. .
As described above, when the liquid to be processed flows from the communication pipe 14 to each distribution pipe 10, the interval dimension Y between the openings 13 of the two adjacent distribution pipes 10 is a solid contained in the liquid to be processed. Since the length of the object 36 is set larger than the length of the object 36, both ends of the solid object 36 penetrate so as to straddle the inside of the two adjacent distribution pipes 10, and the solid object 36 stays between the distribution pipes 10 and 10. Never do.
Further, since the liquid circulation pipe 2 is directly connected to the distribution pipe 10, the solid matter 36 is not caught on the open end 3 of the liquid circulation pipe 2. Therefore, the solid matter 36 is easily removed by simply circulating the cleaning liquid in the heat exchanger and does not accumulate.

Next, as shown in FIG. 5, the multitubular heat exchanger 1 according to the third embodiment shown in FIGS. 5 and 6 also includes a plurality of liquids to be treated in the storage pipe 6. The liquid circulation pipes 2 are arranged along the axial direction at a predetermined interval.
As shown in FIG. 5, the liquid flow pipe 2 has an open end 3 of the liquid flow pipe 2 fixed by a closing plate 4 at its end.
In addition, as shown in FIG. 5, the liquid to be treated that circulates in the liquid circulation pipe 2 is located inside the closing plate 4 and between the liquid circulation pipes 2 inside the storage pipe 6. A heat exchange medium to be heated or cooled (reference numeral 5 denotes a heat exchange medium storage portion) is enclosed.
Further, as shown in FIG. 5, the liquid to be treated is supplied to the storage pipe 6 through distribution pipes 10 that can be joined to the plurality of liquid circulation pipes 2 arranged inside the storage pipe 6. It is configured.
As shown in FIG. 5, the distribution pipe 10 has substantially the same diameter as the liquid circulation pipe 2, and the upstream end of the distribution pipe 10 contacts the outside in the diameter direction except for the central distribution pipe. It is tuned.
And as shown in FIG. 6, the space | interval dimension Z of the opening part 13 of each distribution pipe 10 is set larger than the length dimension of the solid substance 36 contained in a to-be-processed liquid.
The above structure is the same as that of the second embodiment.

However, as shown in FIG. 5, the multi-tubular heat exchanger 1 of the third embodiment has an opening at the upstream end of each distribution pipe 10 and is fixed to the end plate 16 respectively. The end stop plate 16 is connected to a joining pipe 9 having a taper 8 that expands toward the downstream, and the joining pipe 9 and the distribution pipes 10 communicate with each other.

The liquid to be treated flows into the plurality of dispersion pipes 10 from the joint pipe 9 and then flows directly from the dispersion pipes 10 to the liquid circulation pipes 2.
When the liquid to be processed is dispersed and flows from the joint pipe 9 to each of the plurality of dispersion pipes 10, the distance Z between the openings 13 of the two adjacent distribution pipes 10 is included in the liquid to be processed. Since the length of the solid material 36 is set to be larger than the length of the solid material 36, both ends of the solid material 36 invade so as to straddle the inside of the two adjacent distribution pipes 10, and the solid material 36 is interposed between the distribution pipes 10 and 10. It will not stay.
Further, since the liquid circulation pipe 2 is directly connected to the distribution pipe 10, the solid matter 36 is not caught on the opening end 3 of the liquid circulation pipe 2. Therefore, the solid matter 36 is easily removed by simply circulating the cleaning liquid in the heat exchanger and does not accumulate.

Next, as shown in FIG. 7, the heat exchanger 1 according to the fourth embodiment shown in FIGS. 7 and 8 also has a plurality of liquid circulation pipes that allow the liquid to be treated to flow inside the storage pipe 6. 2 are arranged along the axial direction at predetermined intervals.
As shown in FIG. 7, the liquid flow pipe 2 has an open end 3 of the liquid flow pipe 2 fixed by a closing plate 4 at its end.
In addition, as shown in FIG. 7, the liquid to be treated that circulates in the liquid circulation pipe 2 is located inside the closing plate 4 and between the liquid circulation pipes 2 inside the storage pipe 6. A heat exchange medium to be heated or cooled (reference numeral 5 denotes a heat exchange medium storage portion) is enclosed.
The above structure is the same as that in each of the above embodiments.

  However, in the multi-tube heat exchanger 1 according to the fourth embodiment, as shown in FIG. 7, the storage pipe 6 has an inflow side end portion of the liquid circulation pipe 2 along the diameter direction of the storage pipe 6. Thus, a swirl flow generator 11 that can generate a swirl flow is provided.

  The swirl flow generator 11 includes a short cylindrical gap 12 having the same axial direction as the storage pipe 6, and the gap 12 is arranged so as to include all the open end portions 3 of the plurality of liquid flow pipes 2. It is installed. Therefore, as shown in FIG. 8, the seven open end portions 3 in the present embodiment are all arranged in the planar circular space 12.

  Then, as shown in FIG. 8, a liquid inflow hole portion 21 communicates with the gap 12 along a tangential direction of a plane circle. The swirl flow generating portion 11 is formed in a substantially rectangular parallelepiped box shape, and a pipe coupling joint 42 is installed at an end portion of the liquid inflow hole portion 21.

When the liquid to be processed flows into the gap 12 from the liquid inflow hole portion 21, the liquid to be processed rotates along the inner peripheral surface of the gap 12 to become a swirling flow.
Even if the solid matter 36 contained in the liquid to be treated adheres to the closing plate 4, the solid matter 36 is peeled off by the flow pressure of the swirling flow, so that the solid matter 36 is prevented from being deposited on the closing plate 4. .

By the way, it is general that a plurality of storage tubes 6 in each of the above embodiments are arranged in parallel. In this case, conventionally, as shown in FIG. 12, one end of the outer tube 31 and one end of the other outer tube 31 are connected via a single large-diameter U-shaped tube 34.
And since the space | interval dimension W of the opening edge part 38 of the some heat exchanger tube 32 arrange | positioned in each outer tube | pipe 31 is set smaller than the length dimension of the solid substance 36, the both ends of the solid substance 36 are adjacent. The situation where it penetrate | invades so that it may straddle the inside of the two heat exchanger tubes 32 to occur may arise. Therefore, there is a strong possibility that the solid material 36 is deposited on the end face closing plate 37.

Therefore, in order to prevent this, in each of the above embodiments of the present invention, as shown in FIG. 9, each of the plurality of liquid circulation pipes 2 stored in each storage pipe 6 is substantially the same as the liquid circulation pipe 2. They are connected to each other via a plurality of U-tubes 18, 19, and 20 having a diameter.
Therefore, the solid matter 36 is not caught on the edge of the open end 3 of each liquid circulation pipe 2, and the solid matter 36 is not deposited on the closing plate 4.
In each of the above-described embodiments and examples, the plurality of liquid circulation pipes 2 are arranged with an interval dimension larger than the length dimension of the solid matter 36 included in the liquid to be treated. However, the present invention is not limited to the above-described embodiment and examples, and as shown in FIGS. 10 to 13, it is arranged at the same interval dimension as the interval dimension of the liquid circulation pipe in the heat exchanger conventionally used. It can also be applied to the heat exchanger 1 having the liquid flow pipe 2.
That is, in the heat exchanger 1 shown in FIG. 10, the liquid flow pipes 2 arranged in the heat exchange medium storage unit 5 are arranged with a length dimension smaller than the length of the solid material 36.
However, since the distribution pipe 10 is joined to each of the plurality of liquid circulation pipes 2, it is possible to prevent a situation in which the solid matter 36 is caught on the open end of each liquid circulation pipe 2.
Further, in the heat exchanger 1 shown in FIG. 11, the liquid circulation pipes 2 arranged in the heat exchanging medium storage unit 5 are smaller than the length of the solid material 36 as in the embodiment of FIG. The distribution pipes 10 are joined to the plurality of liquid circulation pipes 2, which are arranged according to the length dimension. Furthermore, in the present embodiment, a joining pipe 9 with a taper 8 that expands in the downstream direction is fixed to the tip of the distribution pipe 10, and an opening 13 of each joining pipe 9 is provided. The interval dimension between the two is arranged in a length dimension larger than the length dimension of the solid material 36.
As a result, in the present embodiment, the solid material 36 is not caught and accumulated in the opening 13, and is not caught in each liquid circulation pipe 2.
Further, in the heat exchanger 1 shown in FIGS. 12 and 13, unlike the heat exchanger 1 according to the embodiment shown in FIGS. 7 and 8, the distance between the liquid flow pipes 2 is solid. It is formed smaller than the length dimension of 36. Other technical configurations are the same as those of the embodiment of FIGS.
In the heat exchanger 1 according to the present embodiment, the distance between the liquid circulation pipes 2 is smaller than the solid material 36, but the swirl flow generator 11 is provided. The solid matter 36 is agitated in the vicinity of the opening 3 of the liquid circulation pipe 2 by the generated swirling flow, and a situation where the solid matter 36 is caught in the opening 3 is prevented.

  The present invention is applicable to all multi-tube heat exchangers.

1 is a cross-sectional view of Example 1. FIG. It is sectional drawing in the AA of FIG. 6 is a cross-sectional view of Example 2. FIG. It is sectional drawing in the BB line of FIG. 6 is a cross-sectional view of Example 3. FIG. It is sectional drawing in the CC line of FIG. 6 is a sectional view of Example 4. FIG. It is sectional drawing in the DD line | wire of FIG. It is sectional drawing of the state which connected the some storage pipe in a present Example. It is the multitubular heat exchanger which concerns on another Example. It is the multitubular heat exchanger which concerns on another Example. It is the multitubular heat exchanger which concerns on another Example. It is the DD sectional view taken on the line of FIG. It is sectional drawing of a prior art example. It is sectional drawing in the EE line | wire of FIG. It is sectional drawing of the state which connected the some outer tube of the prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Liquid distribution pipe 3 Opening part 4 Closing plate 5 Heat exchange medium storage part 6 Storage pipe 8 Taper 9 Joint pipe 10 Distribution pipe 11 Swirling flow generation part 12 Gap 13 Opening part 14 Communication pipe 15 Liquid supply pipe 16 End Stop plate 18 U-shaped tube 19 U-shaped tube 20 U-shaped tube 21 Liquid inflow hole 30 Heat exchange medium storage unit 31 Outer tube 32 Heat transfer tube 33 Expansion tube 34 U-shaped tube 35 Heat exchanger 36 Solid material 37 End face closing plate 38 Opening 39 Clamp 40 Hook 41 Hook 42 Joint

Claims (7)

A plurality of liquid distribution pipes arranged along the axial direction at predetermined intervals and through which a liquid to be processed for fluid food containing solids having predetermined dimensions flows, and ends of these liquid distribution pipes A closing plate to which the openings of the plurality of liquid circulation pipes are fixed in the section, the closing plate is fixed to an end, the plurality of liquid circulation pipes are accommodated in the inside via the closing plate, and the liquid A multi-tube heat exchanger for exchanging heat of the liquid to be treated flowing in the liquid flow pipe, comprising a storage pipe having a heat exchange medium sealed between the flow pipes,
The multi-tube heat exchanger according to claim 1, wherein the liquid circulation pipe is arranged with a spacing dimension larger than a predetermined dimension of the solid matter contained in the liquid to be treated.   The multi-tube type according to claim 1, wherein a connecting pipe having a taper that expands toward the downstream is connected to the storage pipe, and a liquid to be treated is supplied through the connecting pipe. Heat exchanger.   2. The multi-tube heat exchange according to claim 1, wherein the storage pipe is supplied with a liquid to be processed through distribution pipes that can be joined to a plurality of liquid circulation pipes arranged inside the storage pipe. vessel.   The storage pipe is joined with distribution pipes that can be joined to a plurality of liquid circulation pipes arranged inside the storage pipe, and a taper that expands toward the downstream is attached to the upstream side of the distribution pipe. The multi-tube heat exchanger according to claim 1, wherein a liquid to be treated is supplied to the liquid circulation pipe through the joint pipe and the distribution pipe. A swirl flow generating portion capable of generating a swirl flow along the diameter direction of the storage tube is provided at the inflow side end of the liquid circulation tube of the storage tube,
The swirl flow generating section includes a short cylindrical gap having the same axial direction as the storage pipe, and is disposed so as to include all the openings of the plurality of liquid circulation pipes. Item 2. The multi-tube heat exchanger according to item 1. A plurality of liquid distribution pipes arranged along the axial direction at predetermined intervals and through which a liquid to be processed for fluid food containing solids having predetermined dimensions flows, and ends of these liquid distribution pipes A closing plate to which the openings of the plurality of liquid circulation pipes are fixed in the section, the closing plate is fixed to an end, the plurality of liquid circulation pipes are accommodated in the inside via the closing plate, and the liquid A multi-tube heat exchanger for exchanging heat of the liquid to be treated flowing in the liquid flow pipe, comprising a storage pipe having a heat exchange medium sealed between the flow pipes,
The aforementioned accommodating tube, both the via distribution pipe which can be joined to a plurality of the liquid flow pipe which is disposed within housing tube target liquid is supplied, the opening of the upstream end of the distribution pipe The multitubular heat exchanger is characterized by being arranged with an interval size larger than a predetermined size of the solid matter . A plurality of liquid distribution pipes arranged along the axial direction at predetermined intervals and through which a liquid to be processed for fluid food containing solids having predetermined dimensions flows, and ends of these liquid distribution pipes A closing plate to which the openings of the plurality of liquid circulation pipes are fixed in the section, the closing plate is fixed to an end, the plurality of liquid circulation pipes are accommodated in the inside via the closing plate, and the liquid And a storage tube having a heat exchange medium sealed between the flow tubes, and is a multi-tube heat exchanger for exchanging heat of the liquid to be processed flowing in the liquid flow tube, A distribution pipe that can be bonded to each of the plurality of liquid flow pipes arranged inside the pipe is joined, and a connection pipe with a taper that expands toward the downstream is connected to the upstream side of the distribution pipe, The liquid distribution pipe is connected via the above joint pipe and distribution pipe. Process liquid is supplied,
The multi-pipe heat exchanger is characterized in that the opening at the upstream end of the distribution pipe is arranged with a gap dimension larger than a predetermined dimension of the solid matter .

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