Title:
ANTIFREEZING LIQUID CIRCULATION APPARATUS
Document Type and Number:
Japanese Patent JP2018188915
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an antifreezing liquid circulation apparatus capable of preventing snow accumulation on a road while keeping the environmental load low and maintaining a favorable concentration of an antifreezing liquid by specifying an optimum flow rate and timing even under various weather conditions, and having good energy efficiency even compared to road heating.SOLUTION: An antifreezing liquid circulation apparatus comprises: a first tank for storing an antifreezing agent stock solution; a second tank for storing an antifreezing liquid; a first pump for transferring the antifreezing agent stock solution from the first tank to the second tank; a recovery section for recovering the supplied antifreezing liquid; and a second pump for transferring the recovered antifreezing liquid from the recovery section to the second tank; and includes: a valve for switching on and off the supply of the antifreezing liquid from the second tank to a target area, and a valve for switching between allowing and stopping the inflow of the antifreezing liquid passing through the target area into the recovery section.SELECTED DRAWING: Figure 1
Inventors:
YAMADA SHIGERU
NAKAJIMA YASUNARI
AIHARA TAKAHIRO
SAKAKIBARA RYOTA
NAKAJIMA YASUNARI
AIHARA TAKAHIRO
SAKAKIBARA RYOTA
Application Number:
JP2017094191A
Publication Date:
November 29, 2018
Filing Date:
May 10, 2017
Export Citation:
Assignee:
HOKKAIDO PORAKON KK
International Classes:
E01C11/26; E01H10/00; E04H9/16
Domestic Patent References:
| JP2007278054A | 2007-10-25 | |||
| JP2012024720A | 2012-02-09 | |||
| JPH02173593A | 1990-07-05 |
Foreign References:
| US5853262A | 1998-12-29 |
Attorney, Agent or Firm:
Toshihiko Nakayama