JPH0330515Y2 - - Google Patents

Info

Publication number

JPH0330515Y2

JPH0330515Y2 JP1987016784U JP1678487U JPH0330515Y2 JP H0330515 Y2 JPH0330515 Y2 JP H0330515Y2 JP 1987016784 U JP1987016784 U JP 1987016784U JP 1678487 U JP1678487 U JP 1678487U JP H0330515 Y2 JPH0330515 Y2 JP H0330515Y2

Authority

JP

Japan

Prior art keywords

water

roof

snow

wavy

pipe

Prior art date

1987-02-07

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

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• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 110
• 238000002844 melting Methods 0.000 claims description 24
• 238000005086 pumping Methods 0.000 claims description 8
• 239000000463 material Substances 0.000 claims description 7
• 230000008018 melting Effects 0.000 description 14
• 239000002351 wastewater Substances 0.000 description 6
• 239000003673 groundwater Substances 0.000 description 5
• 230000005611 electricity Effects 0.000 description 3
• 239000000155 melt Substances 0.000 description 3
• 238000000034 method Methods 0.000 description 3
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 239000005413 snowmelt Substances 0.000 description 2
• 244000145845 chattering Species 0.000 description 1
• 238000007796 conventional method Methods 0.000 description 1
• 230000007423 decrease Effects 0.000 description 1
• 238000007599 discharging Methods 0.000 description 1
• 238000005516 engineering process Methods 0.000 description 1
• 239000000446 fuel Substances 0.000 description 1
• 238000010438 heat treatment Methods 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1
• 239000007921 spray Substances 0.000 description 1
• -1 that is Substances 0.000 description 1