JP2012041809A - Roof panel with snow-melting function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow-melting panel that melts snow accumulated on a roof in a snow-covered region, without dropping the snow from the roof, so as to discharge the snow via a rain gutter or a rainwater pipe.SOLUTION: A roof panel includes a frame body and face materials to be attached on the upside and downside of the frame body. The roof panel makes a vaporized heating medium pass through the inside of the frame body, so as to transfer heat and melt snow accumulated on a roof. The roof panel is placed in a place requiring melting of the snow. The roof panels 2 and 3 comprise: a passage provided in the frame body; a hole which takes in the vaporized heating medium and discharges the liquefied heating medium and which is provided at one end of the passage; and a hole which discharges the vaporized heating medium from the passage and discharges the liquefied heating medium and which is provided at the other end of the passage. The roof itself is constructed by using the roof panels 2 and 3. Using supply piping 5 and return piping 6 as header piping, the plurality of roof panels 2 with a snow-melting function are laid in a zigzag pattern depending on a snow-melting area, and a device for melting the snow by making a system circulate high-pressure steam generated from a steam boiler 1 is constructed and provided.

Description

  The present invention relates to the field related to ecology such as effective use of solar heat, the technical field of indoor and outdoor heat exchange equipment such as road heating and floor heating, the field related to the manufacturing and processing of various metals, and the electronic control related to moving the entire equipment as a system. This field is related to a wide range of fields, such as the field of heat sources for raising the temperature of a heat exchanger for system heat exchange, and the field of building standards for use as a roofing material for buildings.

Recent snow cover has an unprecedented trend of snow cover whether it is related to environmental changes such as global warming. Snow that contains a lot of moisture and powdery snow that accumulates during an abnormal cold wave accumulates alternately, and due to their synergistic effect, strong snow that is hard to crack can be seen. Due to such snow accumulation, snow accumulated so as to involve the end of the roof concentrates as a biased load on the eaves portion of the roof, and snow damage such as damage to rafters as roof materials has frequently occurred in recent years.
In addition, it is unavoidable that Japan will go to an aging society in the future, considering the actual situation of mountainous areas with many elderly people and the inconvenience of roof snow treatment in shopping streets that link the eaves, etc. The focus was on melting snow on the roof.

  Furthermore, using this panel in the field of heat exchange technology that produces hot water from solar heat, and also in the areas where there is a lot of snow by melting snow accumulated on the solar panel by fusing with solar panels of solar power generation Contributing to the field of power generation.In summer, it contributes to ecology by suppressing the temperature rise of the power generation panel and improving power generation efficiency, and using the heat from the heated heat source fluid for hot water supply. The roof panel can be replaced.

  JP-A-6-272429   JP 2007-40031 A

  According to the technique of Patent Document 1, water stays inside a vertical pipe connected to a pump that pumps hot water and a water spray for melting snow, and thus freezes when the outside air temperature reaches below freezing point. Even if the apparatus and the connecting pipes are damaged or not damaged by freezing, it is conceivable that the passage of the heat source fluid is blocked by frozen water (ice) and does not function as a snow melting device.

  According to the technology of Patent Document 2, it is difficult for heat conduction to spread over the entire roof, and it is difficult to uniformly melt (snow) the entire roof surface, and the snow partially melts on the roof. It takes time to distribute heat to a portion where heat conduction is relatively far, and excessive energy is required. Further, both the former and the latter are snow melting devices constructed separately from the roof, and the aesthetic appearance is impaired because a member different from the original roof is attached in the construction state.

  In order to solve the above-described problems, the present invention has a frame body and a face material attached to the upper side and the lower side of the frame body, and heat generated by passing a vaporized heat medium through the frame body. Is a roof panel that dissolves snow accumulated on the roof by conducting, a passage through which a heat medium provided in the frame passes, and a heat medium vaporized at one end of the passage, and A hole for discharging the liquefied heat medium is provided, and the other end portion of the passage is provided with a hole for discharging the heat medium vaporized from the passage and discharging the liquefied heat medium. The roof panel.

  The present invention provides a roof panel in which a passage through which the heat medium provided in the frame passes meanders in the roof panel, and a bypass is provided in the meandering passage.

  In the present invention, the ratio between the height and width of the side surface of the roof panel is 0.005 to 0.1, and the shape of the frame is a hexagonal roof panel.

  The present invention is an assembly of roof panels in which a plurality of roof panels are installed side by side, and incorporates a hole for discharging a heat medium liquefied in the roof panel and a vaporized heat medium of the roof panel not adjacent to the roof panel. The roof panel assembly is characterized in that a hole for connecting is connected by a connecting pipe.

  The present invention is a roof panel assembly in which a plurality of roof panels are arranged side by side, and the roof panels in the shortest position not adjacent in the vertical direction are connected by a connecting pipe.

  The present invention is a roof panel having a frame body and face members attached to the upper side and the lower side of the frame body, and allowing the tap water to be heated by solar heat by passing the tap water through the frame body. A passage provided in the frame for allowing the tap water to pass therethrough, and a hole for taking in and discharging the tap water at one end of the passage, and the passage at the other end of the passage. The roof panel is characterized by having a hole for discharging tap water and taking in tap water.

  The present invention provides a roof panel characterized in that the passage through which the heat medium provided in the frame passes is meandering in the roof panel, and a bypass is provided in the meandering passage.

  The present invention is a roof panel assembly in which a plurality of roof panels are arranged side by side, and connects a hole for taking tap water into the roof panel and a hole for discharging tap water of the roof panel not adjacent to the roof panel. A roof panel assembly characterized by being connected by a pipe.

  The present invention uses a special technique for the shape, structure and material of a snow melting panel (heat sink), constructs an assembling procedure for assembling as a roofing material, and provides a shape, structure and material for the snow melting panel itself to be used as a roofing material. It was selected as a snow melting panel that can be removed at any location on the roof in units of one sheet. A composite of a snow melting panel having a snow melting function and capable of sufficiently withstanding the use as a roof of a building, that is, a roof panel having a snow melting performance was obtained.

  The present invention provides a roof panel and a roof panel assembly characterized in that the roof panel has a hexagonal shape.

  According to the present invention, by providing a bypass for drainage in a meandering heat source fluid passage in a snow melting panel used as a roofing material, the panel at the end of snow melting reaches below the freezing point due to the influence of outdoor outdoor temperature. In this case, the re-liquefied water does not accumulate in the meandering heat dissipation plate, so that they will not freeze and will fall to the freezing and antifreeze zone. Therefore, it is possible to avoid the freezing breakage of the snow melting panel used as the roofing material.

Furthermore, by allowing the heat source fluid to meander through the belt, the entire panel surface during snow melting is heated evenly and the amount of heat conduction can be made uniform, thereby making the amount of snow melting on the roof surface even, There are no parts where snow is not melted.
Therefore, residual snow due to hollowing out during melting of snow is less likely to occur.

According to the present invention, by providing a drain bypass in the snow melting panel used as a roofing material, the excess pressure applied to the tip of the heat source fluid when the heat source fluid passes at the start of snow melting is released to the temporary bypass side. It will go on.
As a result, the passage resistance of the heat source fluid was weakened and the passage was smooth.

  According to the present invention, the roof panel with a snow melting function used as a roofing material has a hexagonal shape, and the panel installation method is arranged (arranged) in a staggered manner, thereby facilitating construction connectivity and maintenance. In addition to the fact that snow melting water merges into the connecting part where heat conduction is likely to be delayed and concentrates on the connecting part, it not only helps to remove snow but also makes it difficult for the heated mirror surface to lose heat. The effect was obtained.

Moreover, by making the shape of the snow melting panel hexagonal, snow melting water concentrates on the lower end of the roof panel with a snow melting function and flows through the joint. As a result, the amount of yellow sand and water deposits in the snow on the mirror surface of the snow melting panel was reduced, and the contamination of the mirror surface was reduced to a minimum.

According to the present invention, the heat source fluid moves in a belt-like manner through the heat pipe (heat radiating plate) of the heat source fluid for the entire shape of the snow melting panel used as the roofing material.
For this reason, the width of the side surface of the snow melting panel is made flat parallel to the surface as much as possible from the connecting pipe attachment position of the heat sink plate to the downstream direction, thereby widening the heat dissipation area as a heat pipe widely and excessively. I was able to.

  The perspective view showing one embodiment of the whole device at the time of snow melting use concerning the present invention.   A front transparent view and a side view of the roof panel body with a snow melting function.   The roof panel compound state laying whole figure of this invention.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic overall view at the time of snow melting of a roof panel with a snow melting function according to the present invention, showing a process in which a heat source fluid flows, and shows the entire apparatus when using snow melting according to the present invention.
The steam generated from the steam boiler of 1 is sent to the snow-melting panel of 2 by the forward piping shown in 5, passes through the connecting pipe of 4, passes through the snow-melting panel of 3 of return, goes through the piping of 6 of the return side, Return to 8 heat source fluid storage tank. The underground water receiving tank of No. 8 is laid in a freezing and antifreeze zone and has a structure in which a certain amount of tap water is held in advance to reliquefy the return steam. The water is again sent to boiler 1 by 9 pumps.
By repeating these series of cycles, the snow on the roof is melted.

  FIG. 2 is a plan view of a roof panel with a snow melting function according to the present invention, in which a plan view of the main body can be seen through a short dotted line through a path of a heat source fluid meandering on the back surface.

Since the drainage bypass 11 of FIG. 2 is installed, the excess pressure applied to the front end portion of the heat source fluid when the heat source fluid passes at the start of snow melting temporarily advances to the bypass side.
As a result, the passage resistance of the heat source fluid was weakened and the passage was smooth.

  FIG. 3 is a state diagram in which a plurality of roof panels of FIG. 2 are attached as roofing materials, and the passage of the heat source fluid that meanders partially on the back surface in a state where it is laid in a staggered manner as a roof can be seen through a short dotted line. It is.

The practice of the present invention actually melted snow using natural snow at a room temperature of minus 5 degrees.
A stainless steel plate with a mirror surface of 3 mm was used, soft water was used as the heat source fluid, propane was used as the heat source fluid, and a small steam boiler was used.

  A roof was sized so that the roof panel could be installed in 4 rows and 4 rows in the front (see FIG. 3). A rafter was laid on top of it, and a transparent acrylic plate was attached to the base plate. The roof panel laid on the roof was piped with commercially available cross-linked polyethylene (heat resistant), and snow was melted by sending steam into the panel.

  The roof panel with a snow melting function of the entire device 2 when using snow melting according to the present invention is an aggregate part of the present patent application, and is itself used as a roofing material and laid in a staggered pattern on the roof. The tap water stored in 8 is pressurized by 9 pressurizing pumps and sent to 1 steam boiler. The water vapor generated in 1 is sent to the snow melting panel 2 by the forward piping shown in 5, passes through the connecting pipe 4, passes through the return snow melting panel 3, passes through the return piping 6, Return to heat source fluid storage tank.

The snow melting operation was started from a state where 30 cm of natural snow was accumulated on 16 roof panels. As a result of attempting to melt snow by passing the generated steam through the small gas steam generator in the piping path of FIG. 1, the snow melting was completed under the condition of room temperature of minus 5 degrees Celsius.
The snow melting area was about 20 square meters, and the snow melting was completed after about 1 hour.

DESCRIPTION OF SYMBOLS 1 Steam boiler 2 Roof panel with snow melting function 3 Roof panel with return snow melting function 4 Connection pipe 5 Outward piping 6 Return piping 7 Rain water pipe 8 Heat source fluid storage tank 9 Pressure pump 11 Drain bypass 13 Snow stopper 14 Gutter

Claims (6)

Snow that has accumulated on the roof by conducting heat generated by passing a vaporized heat medium through the frame, and having a frame and face materials attached to the upper side and the lower side of the frame. A roof panel that
A passage through which a heat medium provided in the frame passes,
Incorporating the vaporized heat medium at one end of the passage, and having a hole for discharging the liquefied heat medium,
A roof panel characterized in that a hole for discharging the heat medium vaporized from the passage and for discharging the liquefied heat medium is provided at the other end of the passage.   The roof panel according to claim 1, wherein the passage is meandering in the roof panel, and a bypass is provided in the meandering passage.   The ratio of the height and width of the side surface of the roof panel is 0.005 to 0.1, and the shape of the frame is a hexagon. Roof panels. An assembly of roof panels in which a plurality of roof panels according to claim 3 are installed side by side,
A roof panel assembly characterized in that a hole for discharging the liquefied heat medium in the roof panel and a hole for taking in the vaporized heat medium of the roof panel not adjacent to the roof panel are connected by a connecting pipe. . A roof panel assembly in which a plurality of roof panels according to claim 3 are installed side by side,
The roof panel assembly according to claim 4, wherein the roof panels in the shortest position not adjacent in the vertical direction are connected by a connecting pipe. The roof panel and roof panel aggregate according to any one of claims 1 and 5, wherein the roof panel has a hexagonal shape.