JP2014037945A - Radiation panel for cooling and heating and stand type radiation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radiation panel for cooling and heating which achieves lightweight and good heat conduction from pipes to heat conduction plates, and to provide a stand type radiation device which uses the radiation panel for the cooling and heating.SOLUTION: A radiation panel for cooling and heating 1 includes: heat exchange pipes 2, each of which is a pipe member in which a heat medium flows and includes a third layer 22 including carbon powder; and a pair of heat conduction plates 3A, 3B which have higher heat conductivity in an in-plane direction than in a thickness direction and are joined to each other so as to sandwich the heat exchange pipes 2.

Description

  The present invention relates to a radiation panel for cooling and heating using a heat conduction plate having anisotropy in thermal conductivity and a stand-type radiation device using the same.

  In recent years, in order to achieve a rapid and uniform heat distribution over a plane, intended for use in connection with planarly arranged heating elements such as wall heating, ceiling heating or floor heating, A heat conduction plate that enables excellent heat conduction and a heating device using the heat conduction plate have been proposed (see, for example, Patent Document 1).

  Patent Document 1 discloses a heat of at least 5.5 W / m · K in a direction parallel to the plate plane (in-plane direction) and 3.6 W / m · K in a direction perpendicular to the plate plane (thickness direction). A thermally conductive plate having conductivity is disclosed. Further, in Patent Document 1, as a heating device using the above-described heat conduction plate, a metal or resin tube that conveys a heat medium is disposed between a pair of heat conduction plates, and the pair of heat conduction plates are compressed together with the tubes. And the heating apparatus which joined between a pair of heat conductive plates without a binder is disclosed.

JP 2006-64296 A

  However, according to the conventional heating device, when a metal tube is used as the tube for conveying the heat medium, the heat transfer to the heat conduction plate is good, but the weight is increased, and the resin tube However, the heat transfer from the tube to the heat conduction plate is not sufficient.

  Accordingly, an object of the present invention is to provide a cooling / heating radiation panel and a stand-type radiation device using the same, which can be reduced in weight and have good heat transfer from a tube to a heat conducting plate.

  To achieve the above object, one embodiment of the present invention is a tubular member through which a heat medium flows, and includes a heat exchange pipe having a resin layer containing thermally conductive powder or fiber, and an in-plane direction rather than a thickness direction. The present invention provides a radiation panel for cooling and heating that has a higher thermal conductivity and includes a heat conduction plate thermally coupled to the heat exchange pipe.

  In order to achieve the above object, another aspect of the present invention provides a stand-type radiation device including the air-conditioning radiation panel and a stand portion that supports the air-conditioning radiation panel from a floor surface.

  According to the present invention, the weight can be reduced and the heat transfer from the tube to the heat conducting plate is improved.

FIG. 1 is a plan view of a radiation panel for air conditioning according to the first embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is an exploded perspective view of the heat exchange pipe. 4A and 4B show a stand-type radiation device according to a second embodiment of the present invention, in which FIG. 4A is a perspective view and FIG. 4B is a perspective view of a main part when a radiation panel for air conditioning is viewed from below.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each figure, about the component which has the substantially same function, the same code | symbol is attached | subjected and the duplicate description is abbreviate | omitted.

[First Embodiment]
FIG. 1 is a plan view of a radiation panel for air conditioning according to the first embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is an exploded perspective view of the heat exchange pipe.

  As shown in FIGS. 1 and 2, the cooling / heating radiation panel 1 includes a heat exchange pipe 2 through which a heat medium such as water and gas flows, and a pair of heat conduction plates 3A and 3B thermally coupled to the heat exchange pipe 2. And surface members 6A and 6B provided on the surface side of the heat conductive plates 3A and 3B, and a frame member 7 for holding the peripheral edges of the heat conductive plates 3A and 3B and the surface materials 6A and 6B, for example, an indoor floor It is used by being arranged on the side wall, ceiling, or the like.

(Heat exchange pipe)
As shown in FIGS. 2 and 3, the heat exchange pipe 2 uses, for example, a tube having a gas barrier property (oxygen impermeability) having a three-layer structure. This tube contains, for example, a first layer 20 made of polyurethane as a synthetic resin, a second layer 21 made of ethylene-vinyl alcohol copolymer (EVOH), and a carbon powder having thermal conductivity in polyurethane as a synthetic resin. A third layer 22 made of a resin layer is provided in this order from the inside. EVOH has a high gas barrier property and prevents oxygen in the air from being dissolved in the fluid in the heat exchange pipe 2. Thereby, generation | occurrence | production of the rust in the heat-source apparatus which circulates a heat medium to the heat exchange pipe 2 can be prevented. In addition, by using carbon powder for the third layer 22, heat transfer from the heat exchange pipe 2 to the heat conduction plates 3A and 3B is improved. The heat exchange pipe 2 is an example of a tubular member. The third layer 22 is an example of a resin layer containing a powder or fiber having thermal conductivity. Moreover, carbon fiber may be used instead of carbon powder, and carbon fiber may be used together with carbon powder. In addition, as the powder or fiber having thermal conductivity, powder or fiber of metal or inorganic material can be used.

  In the present embodiment, the heat exchange pipe 2 has a shape in which the straight portions 2a and the curved portions 2b alternate and meander, and the straight portions 2a are substantially parallel to each other in the pair of heat conduction plates 3A and 3B. Is housed in. Moreover, the heat exchange pipe 2 has the connection part 2c for connecting with another heat exchange pipe etc. In addition, for example, when combined with heat conductive plates 3A and 3B described later, the linear portion 2a of the heat exchange pipe 2 has almost no temperature unevenness as compared with the straight portion 2a that is not inclined even if it is inclined 3 degrees or more with respect to the longitudinal direction. Absent. Further, the straight line portion 2a is not limited to a straight line, but may be an approximate straight line that slightly snakes or curves. Even if the straight line portion 2a is meandering or curved in an approximate straight line shape, the temperature unevenness hardly occurs as compared with the case where the straight line portion 2a is not meandering or curved.

(Heat conduction plate)
The heat conductive plates 3A and 3B are configured to include expanded graphite, but may include a binder or an additive in addition to the expanded graphite. In the present embodiment, the bonding surfaces 3c and 3d of the pair of heat conductive plates 3A and 3B are bonded without using an adhesive, but may be bonded using an adhesive.

  The heat conductive plates 3A and 3B have a thickness of, for example, 5 to 50 mm or 10 to 40 mm. When applied to a floor, a side wall, and a ceiling, for example, the plane size is 600 × 600 mm to 1000 × 3000 mm. Have

The heat conducting plates 3A and 3B have higher heat conduction in the direction parallel to the main surfaces 3a and 3b (in-plane direction) than in the direction perpendicular to the main surfaces 3a and 3b (thickness direction). Ratio (for example, 1.2 times or more, preferably 1.5 times or more). The thermal conductivity in the in-plane direction of the heat conductive plates 3A and 3B is, for example, 5 W / m · K or more. The pair of heat conductive plates 3A and 3B have a predetermined density (for example, 0.01 to 0.5 g / cm ³ ) by being compressed in the thickness direction.

  As the surface materials 6A and 6B, for example, a printing film (manufactured by Sumitomo 3M Limited, registered trademark “Dynock”), a nonwoven fabric made of resin fibers, paper, or the like can be used. As an adhesive for adhering the surface materials 6A and 6B, a synthetic adhesive, an inorganic adhesive, or the like can be used.

  As shown in FIG. 2, the frame member 7 has a vertical wall 7a and a pair of horizontal walls 7b and 7c, and is formed in a U-shaped section or a U-shaped section. Moreover, the frame member 7 is comprised from several members, and is comprised so that it can assemble with a screw | thread. A part of the frame member 7 is formed with a hole for allowing the connecting portion 2c of the heat exchange pipe 2 to pass therethrough. As the frame member 7, for example, a metal plate having a thickness of about 0.5 to 2 mm such as an aluminum plate, an aluminum alloy plate, a steel plate, or the like can be used.

(Manufacturing method of radiation panel for air conditioning)
Next, an example of a method for manufacturing the radiation panel 1 for air conditioning will be described. First, the heat exchange pipe 2 is arranged between the heat conduction plates 3A and 3B formed on the stage including expanded graphite, and the pair of heat conduction plates 3A and 3B are compressed together with the heat exchange pipe 2 from above. By this compression, the joint surfaces 3c and 3d of the pair of heat conduction plates 3A and 3B are joined together, and the inner surfaces of the heat conduction plates 3A and 3B are in contact with the surface of the heat exchange pipe 2. Moreover, the density of a pair of heat conductive board 3A, 3B becomes a predetermined value by the compression at the time of joining work.

  Next, the surface materials 6A and 6B are bonded to the main surfaces 3a and 3b of the heat conductive plates 3A and 3B with an adhesive, and the frame member 7 is attached around the heat conductive plates 3A and 3B and the surface materials 6A and 6B. As described above, the cooling / heating radiation panel 1 is manufactured.

(Operation of the first embodiment)
Next, an example of operation | movement of the radiation panel 1 for air-conditioning of embodiment is demonstrated. When a heat medium whose temperature and flow rate are controlled is supplied to the heat exchange pipe 2 from a heat source device (not shown), the heat medium supplied to the heat exchange pipe 2 circulates through the straight portion 2a and the curved portion 2b and again becomes a heat source Return to the device. While the heat medium passes through the heat exchange pipe 2, heat is exchanged by the heat conducting plates 3A and 3B and the panel body 5, and radiation by the cooling and heating radiation panel 1 is performed to cool and heat the room.

(Effects of the first embodiment)
According to the first embodiment, the following effects are obtained.
(A) By making the third layer 22 of the heat exchange pipe 2 a synthetic resin layer containing carbon powder, heat transfer from the heat exchange pipe 2 to the heat conduction plates 3A and 3B is better than that of a resin pipe. become.
(A) Since the periphery of the heat exchange pipe 2 is covered with the heat conductive plates 3A and 3B having higher thermal conductivity in the in-plane direction than in the thickness direction, the temperature distribution on the main surface 3b of the heat conductive plate 3B Can be made uniform.
(C) Since the heat conductive plates 3A and 3B are in close contact with the entire surface of the heat exchange pipe 2, good thermal coupling is obtained.
(D) Since the frame member 7 is provided, it is easy to attach the cooling / heating radiation panel 1 to the floor, side walls, ceiling, or the like.

[Second Embodiment]
4A and 4B show a stand-type radiation device according to a second embodiment of the present invention, in which FIG. 4A is a perspective view and FIG. 4B is a perspective view of a main part when a radiation panel for air conditioning is viewed from below.

  The stand-type radiation device 100 includes a stand unit 110 and the cooling / heating radiation panel 1 according to the first embodiment attached to the stand unit 110.

  The stand type radiation device 100 is used in combination with, for example, a bed. In addition to combining beds, mattresses, bedding such as futons, furniture such as desks and chairs, and the like may be combined.

(Stand part)
The stand portion 110 supports the radiation panel 1 for cooling and heating from the floor surface FL, has a U-shape as a whole when viewed from the side, and has a base portion 111 placed on the floor surface FL and a base portion 111. The column part 112 connected substantially vertically and the column part so as to be opposed to the floor surface FL, for example, substantially parallel to the floor surface FL (for example, an inclination within ± 5 ° with respect to the floor surface FL). 112 and an arm portion 113 to which the cooling / heating radiation panel 1 is attached. The stand part 110 is formed using a metal such as aluminum as a main material. In the stand unit 110, the distance from the floor surface FL to the cooling / heating radiation panel 1 is, for example, 1700 to 2000 mm.

  The base part 111 has a width (for example, 500 to 700 mm) so as to fit under the bed. Although the base part 111 is provided with the caster 114 in this Embodiment, you may fix to the floor surface FL with fixing means, such as an anchor bolt.

  The arm portion 113 does not necessarily have to be parallel to the floor surface FL. For example, when the tip is lifted in advance and the radiation panel 1 for cooling and heating is attached to the arm portion 113, the arm portion 113 is parallel to the floor surface FL. May be. Moreover, you may support the arm part 113 with a wire etc. from a ceiling. Accordingly, it is possible to prevent the arm portion 113 and the cooling / heating radiation panel 1 from being detached or dropped even when a large external force is applied due to an earthquake or the like, and the arm portion 113 can be made thinner and lighter. The size of the arm part 113 is, for example, a width of 20 to 100 mm and a length of 2000 to 2300 mm.

  The stand unit 110 can include various peripheral devices and accessories. For example, you may provide LED illumination which can adjust illumination intensity in the column part 112, the arm part 113, the radiation panel 1 for air conditioning, etc. FIG. Further, the pillar portion 112 may be provided with a handrail, a hook for hanging a load, a TV stand, and the like. Moreover, you may provide the lamp | ramp sign etc. which know a patient's state, a treatment plan, etc. in the exposed part, such as the arm part 113 or the radiation panel 1 for air conditioning. Thereby, when this stand type radiating device 100 is installed in a sickroom, the state of the patient can be grasped even from a place away from the bed.

  In addition, you may provide a roll-type curtain in the four side surfaces of the radiation panel 1 for air conditioning, or any one side surface. For example, a roll curtain may be provided on each of the three side surfaces excluding the side surface on the column portion 112 side of the cooling / heating radiation panel 1. This roll type curtain is an example of an airflow shielding member.

  The roll curtain is configured, for example, by connecting the curtain to a winding shaft so that the curtain can be wound and pulled out. If the roll curtain can suppress the air flow from the air conditioner or the air outlet provided on the ceiling from hitting a person sleeping on the bed under the heating / cooling radiation panel 1, for example, a patient, Any material or size is acceptable. The curtain may be, for example, a material that completely blocks the airflow, or may be a coarse material having air permeability that allows the air to pass through the air in such a manner that the patient does not feel the wind of the air conditioner. The curtain is also used to protect the patient's privacy, and the silhouette of the person who is on the bed from the outside, such as lace material that allows the nurse to monitor the patient's condition and the condition of the equipment. It is preferable to have such a light transmittance that can be visually recognized. If the winding shaft of the roll curtain is attached to the side surface of the cooling / heating radiation panel 1, it is preferable in that a high airflow shielding effect can be obtained and the airflow shielding amount can be adjusted.

  In addition to the roll curtain, the airflow shielding member may be a horizontal pull curtain or a plate member. The curtain may be configured to adjust air permeability by combining a plurality of types of curtains.

(Effect of the second embodiment)
(A) By using the stand-type radiation device 100, it is possible to create a radiation air-conditioning environment without disassembling the existing ceiling and forming a new ceiling with a radiation panel for cooling and heating as before. A comfortable air-conditioning environment can be easily created every time.
(A) Since the wind from the air conditioner and the ceiling outlet can be blocked by the roll curtain, a comfortable air-conditioned space without wind can be provided and the person can sleep comfortably on the bed.
(C) Since the stand-type radiation device 100 is a self-supporting type, it can be easily attached to an existing bed or arranged side by side.
(D) Since the radiation panel 1 for air conditioning is lightweight, the load on the column part 112 and the arm part 113 of the stand part 110 is small.
(E) In the environment where the wind from the air conditioner is shielded by a roll curtain, the heat exchange from the patient sleeping in the bed is performed by the radiation panel 1 for air conditioning, so that a comfortable air conditioning environment without wind is created. It can create a cooling environment in summer and a heating environment in winter.

[Modification]
The embodiment of the present invention can be modified in various ways within the scope not changing the gist of the present invention. For example, the heat exchange pipe is composed of three layers, but is not limited thereto. Carbon powder may be added to any layer. Further, the heat exchange pipe 2 may be positioned by previously forming recesses in the joint surfaces 3c and 3d of the heat conducting plates 3A and 3B that are in contact with the heat exchange pipe 2.

  Moreover, it is also possible to remove some of the constituent elements of the above-described embodiment within a range not changing the gist of the present invention. For example, in place of the surface materials 6A and 6B or together with the surface materials 6A and 6B, if the heat insulating member is disposed on the main surfaces 3a and 3b side of the heat conducting plates 3A and 3B that do not require air conditioning, the heat insulating material is provided. The heat exchange efficiency of the panel can be improved as compared with the case without it. Furthermore, the heat conductive plates 3A and 3B on the side that does not require air conditioning may be removed, and a heat insulating material may be disposed at this location. Further, if there is means other than the frame member 7 for attaching the heat conducting plate to the ceiling or the like, the frame member 7 may be omitted.

DESCRIPTION OF SYMBOLS 1 ... Radiation panel for heating / cooling, 2 ... Heat exchange pipe, 2a ... Straight part, 2b ... Curve part, 2c ... Connection part, 3A, 3B ... Heat conduction board, 3a, 3b ... Main surface, 3c, 3d ... Joining surface, 6A, 6B ... surface material, 7 ... frame member, 7a ... vertical wall, 7b, 7c ... horizontal wall, 20 ... first layer, 21 ... second layer, 22 ... third layer, 100 ... stand type radiation device, 110 ... Stand part 111 ... Base part 112 ... Column part 113 ... Arm part 114 ... Caster, FL ... Floor

Claims (4)

A heat exchange pipe having a resin layer containing a powder or fiber having thermal conductivity, which is a tubular member through which a heat medium flows;
A heat conduction plate having a higher thermal conductivity in the in-plane direction than in the thickness direction and thermally coupled to the heat exchange pipe;
Heating and cooling radiation panel with   The radiation panel for cooling and heating according to claim 1, wherein the heat conductive plates are a pair of heat conductive plates joined to each other with the heat exchange pipe interposed therebetween.   The radiation panel for cooling and heating according to claim 1 or 2, wherein the heat exchange pipe includes a layer of an ethylene-vinyl alcohol copolymer having a gas barrier property that hardly allows gas to pass therethrough. A radiation panel for cooling and heating according to claim 1,
A stand portion for supporting the radiation panel for cooling and heating from the floor surface;
A stand-type radiation device.

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