JPH045380A - Snow removal system of membrane structure - Google Patents

Abstract

PURPOSE:To easily slide and drop of snow by parting the fallen snow on a membrane roof along top ridge lines by means of top snow melting device, and flowing warm air by a warm air blowing device for melting the freezing of the fallen snow to membrane surfaces. CONSTITUTION:On the lower side of the top section of a membrane structure, whose membrane roof 1 is inclined at about 15 degrees or more, a top snow melting device 2 comprising a warm air blowing device and infrared radiation device is arranged along the ridge lines, and the snow on the membrane roof 1 is parted along the ridge lines of the top section. On the north side and south side of the membrane roof 1, warm air blowing devices 3 are arranged. Warm air is blown along the membrane faces and melts the freezing of fallen snow on the membrane. In addition, by changing-over the blowing direction of the warm air blowing device 3, when snow melting is not required, and by blowing warm air to the space 4 used to partially heat there. This constitution makes it possible to effectively utilize the warm air blowing device.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention divides the snow accumulated on the membrane roof at the top ridgeline to make it easier to slide, and further prevents the snow accumulated on the membrane roof from freezing on the membrane surface. This invention relates to a snow removal system for a membrane structure that is capable of sliding snow by melting it and also heating the space under the membrane roof.

[Conventional technology 1] In conventional membrane roofs, in order to remove accumulated snow, the membrane roof has a certain roof slope, and the snow slides as the outside temperature rises, or the membrane temperature increases with a heating device to cause the snow to slide. .

In addition, as a snow sliding device for a membrane roof according to the present applicant, there is also known a device in which a heating element is attached along the top ridgeline of the membrane roof, and the membrane surface is heated from below by an infrared ray irradiation device to melt the snow, thereby causing snow to slide. (Japanese Unexamined Patent Publication Nos. 2-13668 and 2-13669) [Problems to be solved by the invention] Conventional snow sliding devices for membrane roofs do not know the slope of the roof necessary for snow sliding, so the reliability of snow sliding is There was a lack of certainty and certainty. In addition, in addition to installing a snow melting device to melt frozen snow on the membrane surface, a heating device must be installed separately to heat the space under the membrane roof, which increases equipment costs and installation space. was there.

Therefore, the present invention makes it possible to make the snow slide by melting the frozen snow on the surface of the snow film using a warm air blowing device, and also to heat the space in which it is used, thereby making effective use of the device and reducing its installation space. The purpose is also to make the slope of the membrane roof appropriate and to divide the snowfall at the top of the roof so that it can slide without energy loss.

[Means for Solving the Problems] The present invention is a snow removal system for a membrane structure that achieves the above object.It divides snow on a membrane roof at the top ridgeline by a top snow melting device, and removes snow from the membrane structure by a hot air blowing device. Snow slides by sending warm air to the surface to melt the frozen snow on the surface,
The space in use can be heated by changing the blowing direction of the warm air blowing device.

The slope of the membrane roof must be at least 15 degrees.

Note that this slope of 15 degrees was determined experimentally.

[Function] In the snow removal system for the membrane structure described above, when snow accumulates, the top snow melting device separates the snow along the top ridgeline of the membrane roof,
If necessary (for lighting, etc.), warm air is sent from a warm air blower to the membrane surface to thaw the frozen snow on the membrane surface, and the divided snow will slide and fall under its own weight. After removing snow from the membrane roof, the blowing direction of the hot air blowing device can be changed to send warm air to the space below, which can then be used as a heating device for the space. The hot air blowing device sends hot air to the membrane surface only when snow is sliding, and there is no need to constantly send hot air to the membrane surface, so it can be used effectively by changing the direction of hot air blowing.

[Example] Embodiments of the present invention will be described with reference to the drawings.

The membrane roof 1 of the membrane structure has slopes on both the north and south sides of 5 degrees or more, which is necessary for snow sliding, as determined experimentally. A top snow melting device 2 consisting of a hot air blowing device and an infrared ray irradiation device is arranged below the top of the membrane roof 1 along the ridgeline, so that the snow on the membrane roof 1 can be divided along the top ridgeline.

Hot air blowing devices 3 are placed on the north and south sides of the underside of the membrane roof l, respectively, and blow air along the membrane surface of the membrane roof l to melt the frozen snow on the membrane, thereby generating the necessary air. It is now possible to generate sliding snow depending on the situation.

The hot air blowing device 3 is configured to be able to switch the hot air blowing direction, and blows hot air into the usable space 4 at the bottom of the membrane roof l when snow melting on the membrane roof l is not required. Heating is available. When the space 4 used is a ground, for example, the large space can also be heated, improving comfort for the players.

When removing snow on the membrane roof, the top snow melting device 2 divides the snow along the ridgeline, and the hot air blowing device 3
By preventing snow from freezing on the membrane surface, snow is slid from the membrane roof l with an appropriate slope by its own weight.

[Effects of the Invention] According to the snow removal system of the membrane structure of the present invention, the snow melting device at the top can divide the snow along the top ridgeline, and since the roof slope is appropriate, snow can be easily slid and lightning strikes can be avoided. Reliability and certainty are improved.

In addition, the hot air blowing device can switch the hot air blowing direction between the upper membrane surface and the lower usage space, so it is possible to easily melt the frozen snow on the membrane surface in a planned manner. Snow sliding can be generated, and the thermal energy required at this time is only needed to separate the area where the snow is in contact with the membrane surface, so it is economical. Furthermore, it can be applied to heating the space in use when snow melting on the membrane surface is not required, and the hot air blowing device can be effectively used to make the space comfortable to use.

[Brief explanation of the drawing]

The drawing is an explanatory diagram showing a snow removal system using a membrane structure according to the present invention. l; Membrane roof 2: Snow melting device 3: Warm air blowing device 4; Usage space

Claims (2)

[Claims] (1) A top snow melting device that heats along the top ridgeline of the membrane roof is installed to make it possible to separate snow on the membrane roof from the top. A hot air blowing device that blows hot air by changing the direction as appropriate is installed in the used space, and the warm air blowing device melts frozen snow on the membrane surface to prevent snow slipping and prevent the use of the space under the membrane roof. A snow removal system using a membrane structure, which is characterized by being able to selectively perform heating. (2) Claim 1 in which the slope of the membrane roof is 15 degrees or more.
Snow removal system for membrane structures described in .