| 摘要 |
<p>PURPOSE:To eliminate deterioration of city water and generation of odor, both of which are caused by the bleaching powder (ClO) added to the city water, by forming a partition wall of the captioned vessel by means of either a polyolefine-system, thermoplastic elastomer or a thermoplasetic elastomer as a copolymer of polyurethane and chloroethylene. CONSTITUTION:A buggy bladder 2, which is made of soft, elastic body and which can freely change its shape, is hung in a vessel main body 1. Water can freely flow into or out of the bladder 2, thereby forming a water chamber 8. On the other hand, the vessel main body 1 is filled to gastight with gas like air like air or nitrogen (N2) through a gas filling port 9 until the pressure suitable for use-conditions as a pressure vessel for water supply is obtained, thereby forming a gas chamber 10. The material of the bladder 2 of this vessel for water supply should be either polyolefine-system, thermoplastic elastomer or a thermoplastic elastomer as a copolymer of polyurethane and chloroethylene. Owing to high chlorine-resistance of this material, deterioration of and generation of odor from city water, both of which are caused by bleaching power (ClO) added to the city water, can be prevented.</p> |
