JP5249607B2 - Floor heating system - Google Patents

Description

  The present invention relates to a floor heating system for heating foundation concrete with heat from a solar panel.

  There is a floor heating system that heats basic concrete with heat from a solar panel and dissipates the heat of the basic concrete into the room to heat it (Patent Document 1).

However, it is desirable to store this thermal energy so that it can be taken out when necessary, without immediately using the thermal energy obtained from the solar panel. In addition, a heat accumulator that stores thermal energy can be installed around the house, but it requires installation space, which affects the appearance of the house and there is no installation space due to the size of the property. (Cannot be physically installed).
JP-A-9-280665 (paragraph 0015)

  The present invention takes the above-mentioned circumstances into consideration, and a problem to be solved is to provide a floor heating system in which the thermal energy of sunlight can be stored and taken out when necessary, and the installation space is not a problem.

The present invention is, under the floor, as well as arranged by laminating a mat foundation layer, a heat insulating layer under the mat foundation layer, sequentially place the heat storage layer, it established a solar water heat collection panel outdoors as a heat source, solar A floor heating system is provided on the assumption that the solid foundation layer functions as a heat dissipation layer by providing a heat transfer path for transferring heat from the inside of the hot water heat collecting panel to the inside of the solid foundation layer.

The invention according to claim 1 is characterized in that the heat transfer path is a heat storage path through which hot water circulates inside the solar hot water heat collection panel and the inside of the heat storage layer, and a heat dissipation path through which hot water circulates inside the heat storage layer and inside the solid base layer. the provided Rutotomoni, independently formed two paths of the heat storage path and the heat radiating path, a pump for circulating respectively connected to the heat radiation path and the heat storage path, the heat storage layer is Wariguri layer beneath the heat insulating layer, heat The exchange layer and the ground are sequentially stacked and arranged, and the inside of the heat exchange layer is configured as a part of the heat storage path.

In addition, as in the invention of claim 2, the heat transfer path includes a heat storage path through which hot water circulates inside the solar hot water heat collecting panel and the inside of the heat storage layer, and hot water inside the heat storage layer and the inside of the base layer. Rutotomoni comprising a heat dissipation path for circulating a composite path pathway is connected via a shared path of the heat storage path and the heat radiation path, share common pump for circulating the switchable valve unit the heat dissipation path and heat storage path The heat storage layer is arranged by laminating a split layer, a heat exchange layer, and the ground in order under the heat insulation layer, and the inside of the heat exchange layer is configured as a part of the heat storage path. and it may be.

Further, when an auxiliary heat source is used in addition to solar heat, an auxiliary heat source other than the solar hot water heat collecting panel and a heat exchanger for exchanging heat between the auxiliary heat source and the heat radiation path are provided as in the invention of claim 3. It is desirable to provide.

  Since the heat storage layer is provided further below the heat insulation layer arrange | positioned under the solid foundation layer, this invention does not require installation space around a building. In addition, by circulating the hot water, the heat of the solar hot water heat collection panel is transmitted to the heat storage layer, so that the heat energy of sunlight can be stored in the heat storage layer, and the heat of the heat storage layer is the base layer that is solid by the heat insulation layer. Is not transmitted directly. The heat energy stored in the heat storage layer can be taken out when necessary by the heat dissipation path through which the hot water circulates inside the heat storage layer and the heat dissipation layer.

Moreover, the present invention skillfully uses the ground warmer than the outside air even in winter, and the split layer, the heat exchange layer, and the ground as a heat storage layer as a whole increase the heat storage capacity. In the invention of claim 2 , since the heat dissipation path and the heat storage path are combined and a common pump is used, the cost required for the pump is lower than that which requires a pump for each of the heat dissipation path and the heat storage path.

In the invention of claim 3 , since the heat of the auxiliary heat source other than the solar hot water heat collecting panel can be transmitted to the heat radiation path by the heat exchanger, the heat stored in the heat storage layer is not sufficient even if it is insufficient. Can be warmed.

  As shown in FIG. 1, a house used in the floor heating system has a solid base layer 2 made of concrete, a waterproof sheet 3, a heat insulating layer 4 filled with a heat insulating material, and a heat storage layer 5 under the floor board 1 of the house. They are stacked in order. The solid base layer 2 becomes a heat dissipation layer by applying heat. In addition, the heat storage layer 5 is a laminated structure in which a split layer 6 in which split stones are laid down, a heat exchange layer 7 made of concrete, and a ground 8 are sequentially arranged under the heat insulating layer 4. The whole becomes the heat storage layer 5 by applying heat. Further, the outer peripheral portion of the solid base layer 2 is suspended in an inverted T shape, and the suspended portion covers the periphery of the heat insulating layer 4, the split layer 6, and the heat exchange layer 7 and is embedded in the ground 8. Further, the periphery of the solid foundation layer 2 is covered with a heat insulating material 9, and the heat insulating material 9 is also arranged on the wall 10 and the roof 11.

The floor heating system transfers heat from the inside of the above-mentioned house, the solar hot water collector panel 12 as a heat source to be installed on the outside (roof 11), and the inside of the foundation layer 2 from the inside of the solar hot water collector panel 12 . The heat transfer path 13, the heat pump as the auxiliary heat source 14, and the heat exchanger 15 that transfers the heat of the heat pump 14 to the heat transfer path 13 are configured.

  The first example of the heat transfer path 13 is composed of four paths as shown in FIGS. 2 (A) and 2 (B), and one path consisting of a single path and the other three paths consisting of a composite path. It is. Hereinafter, each route will be described in detail.

  The first path is a single path, which is a heat storage path 16 through which hot water circulates inside the solar hot water collection panel 12 and inside the heat storage layer 5 (heat exchange layer 7), and stores solar heat. . The heat storage path 16 is formed by connecting a pump 20 to a pipe (synthetic resin tube such as polystyrene) through which hot water flows to form a circulation path. A part of the pipe is a solar heat tube 21 built in the solar hot water collecting panel 12, and another part is a heat storage tube 22 embedded in the heat exchange layer 7. Accordingly, when the pump 20 is driven, the warm water heated in the solar heat tube 21 flows into the heat storage tube 22 and the heat exchange layer 7 is warmed. As a result, the cracking layer 6 and the ground 8 are also warmed and the heat storage layer. The whole of 5 warms up.

  The other three paths other than the heat storage path 16 are composite paths in which the heat dissipation path 17, the auxiliary heat path 18, and the combination path 19 are connected to be switchable, and another pump 23 and a valve unit 24 are connected in the composite path. The valve unit 24 can be used to switch the route to be used by the switching operation.

  The valve unit 24 includes a plurality of valves, and includes a first switching valve 25 and a second switching valve 26 that switch the direction in which the hot water flows, and a third stop valve 27 that stops the flow of the hot water, and is not illustrated. An electromagnetic valve that is operated based on a control signal from the control device is used.

  The heat dissipating path 17 and the auxiliary heat path 18 share a portion that passes through the solid base layer 2 and is drawn out to both. The two end portions of the common portion serve as two branch points, and the heat exchanger starts from the branch point. The route toward 15 and the route toward the heat exchange layer 7 are divided. The first switching valve 25 and the second switching valve 26 are connected to these two branch points. The first switching valve 25 and the second switching valve 26 switch the direction in which the hot water flows in two directions, and are respectively a common port (no reference), a first port (reference 1), and a second port (reference 2). The first port is opened and the second port is closed, or conversely, the first port is closed and the second port is opened, and hot water is allowed to flow between the common port and the switched port. The first switching valve 25 and the second switching valve 26 circulate hot water only in the selected heat dissipation path 17 or auxiliary heat path 18 through a joint operation with the third stop valve 27. The third stop valve 27 is openable and closable, and is connected to the combined use path 19, and hot water is circulated only through the combined use path 19 by joint operation with the first switching valve 25 and the second switching valve 26. Is.

  The second path is a heat dissipation path 17 through which hot water circulates inside the heat storage layer 5 and inside the solid base layer 2, and releases the stored heat to warm the room. The heat radiation path 17 forms a circulation path by connecting another pump 23, the first switching valve 25 and the second switching valve 26 to a pipe different from the heat storage path 16. The pipe is composed of a heat radiating tube 28 and a heat exchanging tube 29. The most part of the heat radiating tube 28 is embedded in the solid base layer 2 and the remaining both ends are drawn from the solid base layer 2, and most of the heat exchanging tube 29 is formed. Are embedded in the heat exchange layer 7 and the other end portions are pulled out from the heat exchange layer 7. The outlet of the pump 23, the inlet of the pump 23, the common port of the first switching valve 25, the second port (reference numeral 2) of the first switching valve 25, and one end of the heat exchange tube 29 are connected in order to one end of the heat radiating tube 28. The second port of the second switching valve 26 (reference numeral 2), the common port of the second switching valve 26, and the other end of the heat radiation tube 28 are connected to the other end of the heat exchange tube 29 in this order. Then, the hot water is circulated from the pump 23 in the order of the heat radiation tube 28, the second switching valve 26, the heat exchange tube 29, the first switching valve 25, and the pump 23.

  The third path is an auxiliary heat path 18 through which hot water circulates inside the heat exchanger 15 and inside the solid base layer 2, and radiates heat from only the auxiliary heat source 14 to warm the room. The auxiliary heat path 18 connects both ends of the auxiliary heat tube 30 to the first port (reference numeral 1) of the first switching valve 25 and the first port (reference numeral 1) of the second switching valve 26, respectively. A part is led to the heat exchanger 15. Then, the hot water is circulated from the pump 23 in the order of the heat radiation tube 28, the second switching valve 26, the auxiliary heat tube 30, the first switching valve 25, and the pump 23.

  The fourth path is a combined path 19 in which hot water circulates inside the heat exchanger 15, inside the solid base layer 2 and inside the heat storage layer 5, and uses the heat from the auxiliary heat source 14 and the heat storage layer 5 together. It is something that warms up. The combined path 19 has a bypass path 31 that is directed to the auxiliary heat tube 30 in the heat exchanger 15 after the hot water passes through the heat exchange tube 29 of the heat exchange layer 7, and a third stop valve 27 is provided in the middle of the bypass path 31. Is connected. The hot water is supplied from the pump 23 to the heat radiating tube 28, the second switching valve 26, the heat exchange tube 29, the bypass path 31 (including the third stop valve 27), the auxiliary heat tube 30, the first switching valve 25, and the pump 23. Circulate.

  In addition, the heat exchange tube 29 and the heat storage tube 22 described above are respectively laid on the reinforcing bars assembled on the ground 8, and then the concrete is poured into the heat exchange layer 7. Further, the heat radiating tube 28 is used in the same manner to form the solid base layer 2.

  The heat transfer path 13 described above circulates hot water through a desired path by switching the valve unit 24. When the heat of the heat storage layer 5 is used (when warm water is circulated through the heat dissipation path 17), the heat is stored in the heat storage layer 5 sufficiently, and the first port (symbol 1) of the first switching valve 25 is opened. Then, the second port (reference numeral 2) of the second switching valve 26 is opened and the third stop valve 27 is closed. When the pump 23 in the heat dissipation path 17 is driven after this, the warm water warmed by the heat exchange layer 7 flows into the solid base layer 2, and the solid base layer 2 is warmed. As a result, the room is also warm. Become.

  When the heat of the heat storage layer 5 is used and supplemented by the auxiliary heat source 14 (when warm water is circulated through the combined path 19), the heat storage amount of the heat storage layer 5 is insufficient, and the first port of the first switching valve 25 ( 1) is opened, the second port (2) of the second switching valve 26 is opened, and the third stop valve 27 is opened. If the pump 23 is driven while heating the auxiliary heat source 14 (heat pump) after doing in this way, not only the heat of the auxiliary heat source 14 but also the heat of the heat storage layer 5 is transferred to the hot water, and the heat release of the base layer 2 where the hot water is solid. It flows into the tube 28.

  When the heat of the auxiliary heat source 14 is used (when warm water is circulated through the auxiliary heat path 18), the amount of heat stored in the heat storage layer 5 is insufficient, and the first port (reference numeral 1) of the first switching valve 25 is used. Is opened, the first port (reference numeral 1) of the second switching valve 26 is opened, and the third stop valve 27 is closed. If the pump 23 is driven while the auxiliary heat source 14 is heated in this way, the heat of the auxiliary heat source 14 is transferred to the hot water in the auxiliary heat tube 30 by the heat exchanger 15, and the heat radiating tube of the base layer 2 where the hot water is solid. It flows into 28.

  The second example of the heat transfer path 13 is a composite in which four paths, that is, a heat storage path 16, a heat radiation path 17, an auxiliary heat path 18, and a combined path 19 are connected so as to be switchable as shown in FIGS. The common path 32 shared by the four paths includes the pump 33 and the valve unit 24, and the path to be used can be switched by the switching operation of the valve unit 24.

  The valve unit 24 includes a plurality of valves, and includes first to sixth common switching valves 34 to 39 that switch the direction in which the hot water flows. Each of the common switching valves 34 to 39 switches the direction in which the hot water flows in two directions, like the first switching valve 25 and the like of the previous example. And each common switching valve 34-39 circulates warm water only to the selected thermal storage path | route 16, the thermal radiation path | route 17, the auxiliary | assistant heat path | route 18, and the combined use path | route 19 by joint operation.

  In the heat storage path 16, both ends of the solar heat tube 21 drawn out from the solar hot water collecting panel 12 and both ends of the heat storage tube 22 drawn out from the heat exchange layer 7 are connected to the first shared tube 40 and the second shared tube 41 in the shared path 32. Are connected separately to form a circulation path, and a pump 33 is connected to the first common tube 40 in the middle, and hot water is circulated from the pump 33 toward the solar heat tube 21. Starting from the pump 33, the first common tube 40 has a common port of the first common switching valve 34, a first port of the first common switching valve 34, and a second port of the second common switching valve 35 along the traveling direction of the hot water. The common port of the second shared switching valve 35, the common port of the third shared switching valve 36, and the second port of the third shared switching valve 36 are connected in order, and the fourth shared switching valve 37 is connected to the second shared tube 41. The second port, the common port of the fourth shared switching valve 37, the common port of the fifth shared switching valve 38, and the first port of the fifth shared switching valve 38 are connected in order, and the first of the fifth shared switching valve 38 is connected. A second port of the sixth shared switching valve 39 and a common port of the sixth shared switching valve 39 are sequentially connected to the first shared tube 40 through which the hot water flows from the port through the heat storage tube 22, and then the hot water returns to the pump 33. Is.

  The heat dissipation path 17 uses the shared path 32 by connecting both ends of the heat dissipation tube 28 drawn from the solid base layer 2 to the first port of the third shared switching valve 36 and the first port of the fourth shared switching valve 37. However, the circulation path which circulates warm water between the thermal radiation tube 28 and the thermal storage tube 22 is comprised. More specifically, the hot water is supplied from the pump 33 to the first shared switching valve 34, the second shared switching valve 35, the third shared switching valve 36, the heat radiating tube 28, the fourth shared switching valve 37, the fifth shared switching valve 38, and the heat storage. The tube 22, the sixth common switching valve 39, and the pump 33 flow in this order.

  The auxiliary heat path 18 connects the second port of the fifth shared switching valve 38 and the first port of the sixth shared switching valve 39 by the shared bypass path 42 and also connects the second port of the first shared switching valve 34 and the first port. By connecting the first port of the dual shared switching valve 35 to both ends of the auxiliary heat tube 30, a circulation path for circulating hot water between the auxiliary heat tube 30 and the heat radiating tube 28 is configured using the shared path 32. Is. More specifically, the hot water is supplied from the pump 33 to the first common switching valve 34, the auxiliary heat tube 30, the second common switching valve 35, the third common switching valve 36, the heat radiation tube 28, the fourth common switching valve 37, and the fifth common switching valve. The switching valve 38, the common bypass path 42, the sixth common switching valve 39, and the pump 33 flow in this order.

  The combined path 19 constitutes a circulation path for circulating hot water among the auxiliary heat tube 30, the heat radiating tube 28, and the heat storage tube 22 while using the common path 32. More specifically, the hot water is supplied from the pump 33 to the first common switching valve 34, the auxiliary heat tube 30, the second common switching valve 35, the third common switching valve 36, the heat radiation tube 28, the fourth common switching valve 37, and the fifth common switching valve. The switching valve 38, the heat storage tube 22, the sixth common switching valve 39, and the pump 33 flow in this order.

  The shared path 32 includes the first shared tube 40, the second shared tube 41, the shared bypass path 42, the pump 33, and the first to sixth shared switching valves 34 to 39.

  The heat transfer path 13 described above circulates hot water through a desired path by switching the valve unit 24. When the heat of the heat storage layer 5 is used, the first port of the first shared switching valve 34 is opened, the second port of the second shared switching valve 35 is opened, the first port of the third shared switching valve 36 is opened, The first port of the fourth shared switching valve 37 is opened, the first port of the fifth shared switching valve 38 is opened, the second port of the sixth shared switching valve 39 is opened, and the pump 23 is driven.

  When using the heat of the heat storage layer 5 and supplementing with the auxiliary heat source 14, the second port of the first shared switching valve 34 is opened, the first port of the second shared switching valve 35 is opened, and the first of the third shared switching valve 36 is opened. The port is opened, the first port of the fourth shared switching valve 37 is opened, the first port of the fifth shared switching valve 38 is opened, the second port of the sixth shared switching valve 39 is opened, and the pump 23 is driven.

  When using only the heat of the auxiliary heat source 14, the second port of the first shared switching valve 34 is opened, the first port of the second shared switching valve 35 is opened, the first port of the third shared switching valve 36 is opened, The first port of the fourth shared switching valve 37 is opened, the second port of the fifth shared switching valve 38 is opened, the first port of the sixth shared switching valve 39 is opened, and the pump 23 is driven.

  When storing heat in the heat storage layer 5, the first port of the first shared switching valve 34 is opened, the second port of the second shared switching valve 35 is opened, the second port of the third shared switching valve 36 is opened, The second port of the fourth shared switching valve 37 is opened, the first port of the fifth shared switching valve 38 is opened, the second port of the sixth shared switching valve 39 is opened, and the pump 23 is driven.

  The floor heating system described above can also be used as a cooling system in summer. That is, since the temperature of the ground is lower than the outside air temperature in the summer, warm water (which becomes cold water depending on the temperature of the ground in the summer) is circulated through the heat radiation path 17, so that the ground temperature is determined from the heat storage layer 5. To tell. In this case, the heat storage layer 5 does not store the heat from the solar hot water heat collection panel 12 (the pump of the heat storage path 16 is not driven). It is also possible to cool the auxiliary heat source 14 (heat pump) and transmit the heat of the auxiliary heat source 14 to the solid base layer 2. If it does in this way, it will become an air-conditioning system.

It is sectional drawing which shows schematic structure of a floor heating system. (A) and (B) are explanatory views showing a first example of a heat transfer path of the floor heating system, and operation diagrams of the valve unit. (A) and (B) are explanatory views showing a second example of the heat transfer path of the floor heating system, and operation diagrams of the valve unit.

Explanation of symbols

1 floor board, 2 solid foundation layer, 3 waterproof sheet, 4 heat insulation layer, 5 heat storage layer, 60% cut layer, 7 heat exchange layer,
8 grounds, 9 thermal insulation, 10 walls, 11 roofs, 12 solar hot water collector panels, 13 heat transfer paths,
14 auxiliary heat sources, 15 heat exchangers, 16 heat storage paths, 17 heat dissipation paths, 18 auxiliary heat paths,
19 combination route, 20 pump, 21 solar tube, 22 heat storage tube, 23 pump,
24 valve unit, 25 first switching valve, 26 second switching valve, 27 third stop valve,
28 heat radiation tubes, 29 heat exchange tubes, 30 auxiliary heat tubes, 31 bypass paths,
32 shared routes, 33 pumps, 34 first shared switching valve, 35 second shared switching valve,
36 third shared switching valve, 37 fourth shared switching valve, 38 fifth shared switching valve, 39 sixth shared switching valve,
40 first shared tube, 41 second shared tube, 42 shared bypass route

Claims (3)

A solid base layer (2) is laminated and arranged under the floor board (1), and a heat insulating layer (4) and a heat storage layer (5) are sequentially arranged under the solid base layer (2), and solar heat is used as a heat source. A solid foundation by installing a hot water heat collection panel (12) outdoors and providing a heat transfer path (13) for transferring heat from the inside of the solar hot water collection panel (12) to the inside of the foundation layer (2). Make layer (2) function as a heat dissipation layer ,
The heat transfer path (13) includes a heat storage path (16) through which hot water circulates in the solar hot water heat collecting panel (12) and the heat storage layer (5), and a base layer that is solid with the heat storage layer (5). Rutotomoni an internal hot water is circulated radiation path of 2) (17), independently two paths formed by the thermal storage path (16) and the heat radiation path (17), and heat storage path (16) heat dissipation path ( 17) are connected to circulation pumps (20, 23), respectively.
The heat storage layer (5) is arranged by laminating a split layer (6), a heat exchange layer (7), and a ground surface (8) in this order under the heat insulation layer (4), and the inside of the heat exchange layer (7) is arranged. A floor heating system configured as a part of the heat storage path (16) . Under the floor (1), solid base layer (2), a heat insulating layer (4), the heat storage layer (5) is arranged, the solar water heat collection panel (12) is installed outdoors as a heat source, solar water heat collector By providing the heat transfer path (13) for transferring heat from the inside of the panel (12) to the inside of the solid foundation layer (2), the solid foundation layer (2) functions as a heat dissipation layer ,
The heat transfer path (13) includes a heat storage path (16) through which hot water circulates in the solar hot water heat collecting panel (12) and the heat storage layer (5), and a base layer that is solid with the heat storage layer (5). Rutotomoni an internal hot water is circulated radiation path of 2) (17), a composite path pathway is connected via a shared path (32) of the heat storage path (16) and the heat radiation path (17), A valve unit (24) capable of switching between the heat storage path (16) and the heat dissipation path (17) and a shared pump (33) for circulation are connected to the shared path (32).
The heat storage layer (5) is arranged by laminating a split layer (6), a heat exchange layer (7), and a ground surface (8) in this order under the heat insulation layer (4), and the inside of the heat exchange layer (7) is arranged. The floor heating system according to claim 1, wherein the floor heating system is configured as a part of the heat storage path (16) . An auxiliary heat source (14) other than the solar hot water heat collecting panel (12) and a heat exchanger (15) for exchanging heat between the auxiliary heat source (14) and the heat radiation path (17) are provided. The floor heating system according to 1 or 2 .

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