JP4744239B2 - Heat source pipe and heating device using the same - Google Patents

Description

  The present invention relates to a heat source pipe and a heating device using the same, and in particular, a radiation heat pipe is provided so as to be heated by a heat medium flowing in the heat source pipe, and heating is performed by heat radiation from the heated heat pipe. It is suitable for use in a heating device configured to perform.

  FIG. 5 is a diagram showing a partial configuration of a conventional heating device using a heat pipe in a heat exchange section for radiation, where (a) is a side sectional view and (b) is a front sectional view. As shown in FIG. 5, this type of conventional heating apparatus includes a heat pipe 101 and a cylindrical body 102 as heat source means. The cylinder 102 heats the heat pipe 101 by supplying hot water as a heat medium from an external heat source device (not shown). And the room is heated by the radiation heat by the heat radiation of the heat pipe 101 heated by the hot water.

The cylindrical body 102 is formed with a hole 102a for inserting the bag-like insertion portion 103 at an interval in the longitudinal direction. With the insertion portion 103 inserted into the hole portion 102a, the heat pipe 101 is inserted into the insertion portion 103, and the locking pin 104 is fitted, so that the heat pipe 101 is installed in a standing posture. Has been. In addition, the heating apparatus of such a structure is disclosed by patent document 1, for example.
JP 2003-130378 A

  However, in the above-described conventional heating device, when the length of the cylindrical body 102 is increased, the hot water supplied from the external heat source machine flows to the end of the cylindrical body 102, and the hot water gradually cools down. Sufficient heating is not possible at a position where the distance from the machine is large. That is, there is a problem that the hot water flowing in the cylinder 102 cannot be heated uniformly. This is because the hole 102a formed in a convex shape toward the inside of the cylindrical body 102 causes the hot water flowing inside the cylindrical body 102 to be resisted and stagnated, and the hot water is efficiently distributed over the entire cylindrical body 102. This is thought to be due to the fact that it cannot be supplied automatically.

  The present invention has been made to solve such a problem, and enables a heating medium flowing inside a cylinder to be efficiently and evenly heated so that the heating device can be used even when the length of the cylinder is long. It aims at making it fully function as.

  In order to solve the above-described problems, the heat source pipe of the present invention includes an outer pipe formed with a hole for installing in a standing posture by inserting a heat pipe at intervals in the longitudinal direction, An inner pipe for an outward path and an inward path inserted in the longitudinal direction therein, a first heat medium existing in the outer pipe, and a second existing in the inner pipe for an outward path and an inward path The heat exchange with the heat medium is performed.

  According to the present invention configured as described above, the second heat medium flowing inside the inner pipe is efficiently supplied to the end of the forward path without receiving resistance by the hole of the outer pipe, Therefore, the degree of cooling in the process in which the second heat medium flows from the external heat source unit toward the end of the outward path can be reduced as compared with the conventional case. Further, the inner pipe of the return path is also inserted into the outer pipe, and since the heated first heat medium exists in the outer pipe, the return path is outside the outer pipe and is in the air. Compared with the case where it is exposed, the degree of cooling in the process of returning the second heat medium from the end of the forward path toward the external heat source machine can be reduced. Therefore, the efficiency at the time of reheating the returned 2nd heat carrier with an external heat source machine can be raised.

  From the above, the second heat medium can be uniformly heated in a relatively short time over the entire inner tube. Accordingly, the first heat medium in the outer tube that exchanges heat with the second heat medium can also be heated uniformly over a relatively short time over the entire outer tube. As a result, even when the length of the heat source pipe is long, the heat medium flowing inside the heat source pipe can be efficiently and evenly heated, and can sufficiently function as a heating device. .

(First embodiment)
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of the invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a heat source tube 10 according to the first embodiment and a heating apparatus using the heat source tube 10. 2A and 2B are diagrams showing a cross-sectional configuration example of the heat source tube 10 according to the first embodiment. FIG. 2A is a cross-sectional view of the heat source tube 10 as viewed from the side, and FIG. 2B is a front view of the heat source tube 10. Sectional drawing seen from the direction is shown.

  As shown in FIGS. 1 and 2, the heat source tube 10 of the present embodiment is a heat source means for heating the heat pipe 101, and includes an outer tube 1 and an inner tube 2.

  The outer tube 1 is a cylindrical body having a first inner diameter formed so as to be filled with a first heat medium, and has a standing posture with a heat pipe 101 inserted at intervals in the longitudinal direction thereof. The hole 1a for installing in is formed. Specifically, with the bag-like insertion portion 103 inserted into the hole 1a, the heat pipe 101 is inserted into the insertion portion 103 and the locking pin 104 is fitted, so that the heat pipe 101 is in a standing posture. It is made to install in. Note that this configuration for holding the heat pipe 101 in a standing posture is merely an example, and the present invention is not limited to this configuration.

  Supply pipes 1 b for supplying a heat medium into the outer pipe 1 are provided at both ends in the longitudinal direction of the outer pipe 1. After filling the first heat medium from the supply pipe 1b into the outer pipe 1, the plug 1c is plugged into the supply pipe 1b. The stopper 1c has a pressure valve. When the first heat medium put in the outer tube 1 is heated, the outer tube 1 expands and there is a risk of destruction. Therefore, pressure may be released from the pressure valve to the outside of the outer tube 1. It is configured to be able to. The position of the supply pipe 1b shown in FIG. 1 is merely an example, and the present invention is not limited to this. Moreover, providing the supply pipe 1b at two locations is merely an example.

  The outer pipe 1 heats the heat pipe 101 by heat conduction from the first heat medium filled therein. And the room is heated by the radiation heat by the heat radiation of the heat pipe 101 heated by the first heat medium. As the first heat medium, for example, hot water can be used, but it is preferable to use oil having higher thermal efficiency.

  The inner tube 2 is a cylindrical body having a second inner diameter (smaller than the first inner diameter) that penetrates the inside of the outer tube 1 in the longitudinal direction, and is configured so that the second heat medium flows through the cylinder. Has been. The inner pipe 2 includes an inner pipe 2 a for the forward path and an inner pipe 2 b for the return path, both of which penetrate the inside of the outer pipe 1. One end of each of the inner pipes 2 a and 2 b is connected to the external heat source device 21, and the other end is connected by a U-shaped pipe 3. Here, an example in which the U-shaped tube 3 is outside the outer tube 1 is shown, but it may be inside the outer tube 1.

  The inner tube 2 heats the first heat medium filled in the outer tube 1 by circulating the second heat medium supplied from the external heat source device 21 inside. That is, the first heat medium and the second heat medium are filled by filling the first heat medium in the outer tube 1 and circulating the second heat medium in the inner tube 2. Heat exchange between them. As the second heat medium, for example, hot water can be used, but it is preferable to use oil with higher thermal efficiency.

  The external heat source unit 21 heats the second heat medium to circulate through the inner pipe 2. If the inner tube 2 does not exist and only the first heat medium in the outer tube 1 is heated, the first heat medium is equally efficient over the entire outer tube 1 as in the prior art. Cannot be heated automatically. However, the provision of the inner tube 2 enables efficient heating.

  That is, the second heat medium flowing through the inner pipe 2a for the forward path is efficiently supplied to the end of the forward path without receiving any resistance by the hole 1a. That is, since no stagnation or the like occurs in the middle, the degree of cooling in the process of flowing the second heat medium from the external heat source device 21 toward the end of the outward path can be reduced as compared with the conventional case.

  Further, the inner pipe 2b for the return path also passes through the outer pipe 1, and since the heated first heat medium is contained in the outer pipe 1, the inner pipe 2b for the return path is the outer pipe. Compared to the case where the second heat medium is returned to the external heat source device 21 from the end of the forward path, the degree of cooling can be reduced as compared with the case where the second heat medium is returned from the end of the forward path to the external heat source device 21. . Therefore, the efficiency at the time of reheating the 2nd heat carrier which returned by circulation with the external heat source machine 21 can be raised.

  From the above, the second heat medium can be uniformly heated in a relatively short time over the entire inner tube 2. As a result, the first heat medium in the outer tube 1 that exchanges heat with the second heat medium can also be uniformly heated over the entire outer tube 1 in a relatively short time. As a result, even if the length of the heat source tube 10 is long, the heat medium flowing inside the heat source tube 10 can be efficiently and evenly heated, and can function sufficiently as a heating device. Become.

  In addition, in the said 1st Embodiment, you may comprise so that the hole 1a formed in the outer tube | pipe 1 and the inner tube | pipe 2a for an outward path may contact. In the said 1st Embodiment, the inner pipe 2a for an outward path heats the 1st heat medium with which the outer pipe | tube 1 is filled, and heats the heat pipe 101 with the heated 1st heat medium. As explained. On the other hand, the heat pipe 101 is directly heated by the second heat medium flowing through the inner pipe 2a for the outward path by bringing the hole 1a and the inner pipe 2a for the outward path into contact with each other. Heating efficiency can be further improved. In addition to the inner pipe 2a for the forward path, the inner pipe 2b for the backward path may be brought into contact with the hole 1a.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a diagram illustrating a configuration example of the heat source pipe 20 according to the second embodiment and a heating apparatus using the same. 4A and 4B are diagrams showing a cross-sectional configuration example of the heat source tube 20 according to the second embodiment. FIG. 4A is a cross-sectional view of the heat source tube 20 viewed from the side surface, and FIG. 4B is a front view of the heat source tube 20. Sectional drawing seen from the direction is shown.

  As shown in FIGS. 3 and 4, the heat source tube 20 according to the second embodiment is a heat source means for heating the heat pipe 101, and includes an outer tube 11 and an inner tube 12.

  The outer tube 11 is a cylindrical body having a first inner diameter that allows the first heat medium to flow through the outer tube 11. The heat pipe 101 is inserted at a distance in the longitudinal direction of the outer tube 11 in a standing posture. A hole 11a for installation is formed. Specifically, with the bag-like insertion portion 103 inserted into the hole portion 11a, the heat pipe 101 is inserted into the insertion portion 103 and the locking pin 104 is fitted, so that the heat pipe 101 is in a standing posture. It is made to install in. Note that this configuration for holding the heat pipe 101 in a standing posture is merely an example, and the present invention is not limited to this configuration.

  At one end in the longitudinal direction of the outer tube 11, there is a supply tube 13 a for supplying the first heat medium from the external heat source device 21 into the outer tube 11 and the outer tube 11. A receiving pipe 13b for drawing the first heat medium returning to the external heat source unit 21 is connected.

  The outer tube 11 heats the heat pipe 101 by heat conduction by causing the first heat medium supplied from the external heat source device 21 to flow inside. And the room is heated by the radiation heat by the heat radiation of the heat pipe 101 heated by the first heat medium. As the first heat medium, for example, hot water can be used, but it is preferable to use oil having higher thermal efficiency.

  The inner tube 12 is a cylindrical body having a second inner diameter (smaller than the first inner diameter) that penetrates the inside of the outer tube 11 in the longitudinal direction, and is configured so that the second heat medium flows through the inside. The forward path inner pipe 12a and the return path inner pipe 12b are provided. These inner pipes 12a and 12b correspond to the inner pipes 2a and 2b in the first embodiment. Further, the second embodiment also includes an inner pipe 12c for return path (corresponding to an inner pipe for second return path according to the present invention) in which the first heat medium flows. That is, the first heat medium supplied from the external heat source device 21 to the outer tube 11 circulates in the interior, and then returns to the external heat source device 21 through the U-tube 3 and the return inner tube 12c. Here, it is heated and supplied to the outer tube 11 again.

  As described above, the two inner pipes 12 a and 12 b through which the second heat medium flows are both penetrating into the outer pipe 11. The inner pipe 12c through which the first heat medium is circulated can also be piped outside the outer pipe 11, but in this embodiment, the inner pipe 12c is penetrated into the outer pipe 11.

  The inner pipes 12a and 12b heat the first heat medium flowing through the outer pipe 11 by flowing the second heat medium supplied from the external heat source unit 21 inside. That is, the first heat medium is circulated in the outer tube 11 and the second heat medium is reciprocated in the inner tube 2 so that the first heat medium and the second heat medium are Heat exchange between them. As the second heat medium, for example, hot water can be used, but it is preferable to use oil with higher thermal efficiency.

  The external heat source unit 21 heats the first heat medium to circulate through the outer pipe 11 and the inner pipe 12c for the return path. The external heat source unit 21 heats the second heat medium to circulate the inner pipes 12a and 12b for the forward path and the backward path.

  In the first embodiment described above, the first heat medium in the outer tube 11 is only heated by the second heat medium flowing through the inner tubes 12a and 12b. In contrast, in the second embodiment, the first heat medium itself is also heated by the external heat source device 21. As described above, if the inner tubes 12a and 12b are not present, the first heat source body cannot be heated uniformly and efficiently over the entire outer tube 11, but the inner tubes 12a and 12b are present. Makes this possible. In addition, since the first heat medium is also directly heated, heating the first heat medium evenly over the entire outer tube 11 is more efficient than the first embodiment. Will be able to do.

  Further, the inner pipe 12c for the return path through which the first heat medium is circulated also passes through the outer pipe 11. Since the heated first heat medium is contained in the outer tube 11, compared with the case where the inner tube 12 c for the return path is outside the outer tube 11 and exposed to the air, The degree to which the first heat medium cools in the process of returning from the end toward the external heat source device 21 can be reduced. Therefore, the efficiency at the time of reheating the 1st heat medium which returned by circulation with the external heat-source equipment 21 can be raised.

  From the above, even when the length of the heat source tube 20 is long, the heat medium flowing through the heat source tube 20 can be efficiently and evenly heated, and can sufficiently function as a heating device. It becomes like this.

  In the second embodiment, the hole 11a formed in the outer tube 11 and the inner tube 12a for the outward path may be in contact with each other. In addition to the inner pipe 12a for the forward path, the inner pipe 12b for the backward path may be brought into contact with the hole portion 11a. Furthermore, you may make it contact the inner pipe 12c for the return path which distribute | circulates a 1st heat medium to the hole part 11a. By bringing the hole 11a into contact with the inner pipes 12a, 12b, and 12c, the heat pipe 101 is directly moved by the first heat medium and the second heat medium that circulate in the inner pipes 12a, 12b, and 12c. The heating efficiency can be further improved.

  Moreover, although the said 2nd Embodiment demonstrated the example which heats and distribute | circulates both a 1st heat medium and a 2nd heat medium using the one external heat source apparatus 21, a 1st heat medium is demonstrated. A first external heat source device that heats and circulates and a second external heat source device that heats and circulates the second heat medium may be provided separately. By providing the external heat source device separately, the heating efficiency can be increased.

  In the first and second embodiments, the outer pipes 1 and 11 and the inner pipes 2 and 12 have been described as cylindrical bodies having a circular cross section, but the shape is not limited thereto.

  In the first embodiment, the example in which the inner pipe 2a for the outward path and the inner pipe 2b for the backward path are passed through the outer pipe 1 one by one has been described. An inner pipe 2b may be provided. Similarly, in the second embodiment, a plurality of forward inner pipes 12a and return inner pipes 12b may be passed through the outer pipe 11. Further, a plurality of return-path inner pipes 12c through which the first heat medium is circulated may be penetrated through the outer pipe 11.

  Moreover, although the said 1st and 2nd embodiment demonstrated the example which connects only one heat source pipe | tube 10 and 20 with respect to the external heat source machine 21, several heat source pipe | tubes 10 and 20 are connected, The terminal It is also possible to connect the U-shaped tube 3 in FIG.

  In addition, each of the above-described embodiments is merely an example of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. In other words, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

  INDUSTRIAL APPLICABILITY The present invention is useful for a heating apparatus that is configured so that a heat pipe for radiation is heated by a heat medium flowing in a heat source pipe, and is heated by radiating heat from the heated heat pipe.

It is a figure which shows the structural example of the heat source pipe | tube by 1st Embodiment, and a heating apparatus using the same. It is a figure which shows the cross-sectional structural example of the heat-source pipe | tube by 1st Embodiment. It is a figure which shows the structural example of the heat source pipe | tube by 2nd Embodiment, and a heating apparatus using the same. It is a figure which shows the cross-sectional structural example of the heat-source pipe | tube by 2nd Embodiment. It is a figure which shows the partial structure of the conventional heating apparatus which used the heat pipe for the heat exchange part for radiation.

Explanation of symbols

1,11 Outer pipe 2,12 Inner pipe 2a, 12a Outward inner pipe 2b, 12b for circulating the second heat medium Return path inner pipe 12c for circulating the second heat medium 12c Flow through the first heat medium Inner pipe for return path 10, 20 Heat source pipe 21 External heat source machine

Claims (3)

A heat source tube as a heat source means for heating the heat pipe,
An outer tube formed with a hole for installing in a standing posture by inserting the heat pipe with an interval in the longitudinal direction;
An inner tube for a forward path and a backward path inserted in the longitudinal direction into the outer pipe for the reciprocating path of the second heat medium;
An inner pipe for the second return path that penetrates the inside of the outer pipe in the longitudinal direction for the return path of the first heat medium;
The first heat medium flows with the inside of the outer pipe as a forward path, and the first heat medium flows with the inner pipe for the second return path as a return path,
The second heat medium flows in a reciprocating manner inside the inner pipe for the forward path and the backward path,
A heat source tube configured to cause heat exchange between the first heat medium and the second heat medium. A heating device comprising a heat pipe, a heat source pipe as a heat source means for heating the heat pipe, and an external heat source machine for heating a heat medium to be circulated inside the heat source pipe,
The heat source tube is
An outer tube formed with a hole for installing in a standing posture by inserting the heat pipe with an interval in the longitudinal direction;
An inner tube for a forward path and a backward path inserted in the longitudinal direction into the outer pipe for the reciprocating path of the second heat medium;
An inner pipe for the second return path that penetrates the inside of the outer pipe in the longitudinal direction for the return path of the first heat medium;
The first heat medium flows with the inside of the outer pipe as an outward path, and the first heat medium flows with the inside of the inner pipe for the second return path as a return path,
The second heat medium flows in a reciprocating manner inside the inner pipe for the forward path and the backward path,
Heat exchange is performed between the first heat medium and the second heat medium,
The external heat source unit heats the first heat medium to circulate the inside of the outer pipe and the second return inner pipe, and heats the second heat medium for the forward path and A heating device, characterized in that it is configured to circulate through an inner pipe for a return path. The external heat source machine
A first external heat source device that heats the first heat medium and circulates the inside of the outer tube and the second return inner tube;
The heating apparatus according to claim 2, further comprising a second external heat source device that heats the second heat medium and distributes the inside of the inner pipe for the forward path and the backward path.

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