| 摘要 |
FIELD: physics. ^ SUBSTANCE: apparatus for odourising natural gas has a supply tank of odourising liquid which has a pressure charging nozzle linked with a high pressure gas channel, and a nozzle for supplying odourising liquid into a low pressure main pipeline, where the high pressure gas channel is linked to the pressure charging nozzle through a flow reducer, pressure charging reducer and a first check valve, and through a flow reducer, ejector and rotametre - flow indictor for the mixture of gas and odourant with the low pressure main pipeline. The supply tank is fitted with an extra nozzle for feeding odourant vapour. Nozzles for feeding the odourising liquid and feeding odourant vapour through switches, rotametre - odourant flow indicator and second check valve are linked through the ejector with the low pressure main pipeline for feeding odourant into the said low pressure main pipeline. ^ EFFECT: simple design of the apparatus by reducing the number of required elements, high operational reliability of the apparatus, prevention of leakage of the odourant into the atmosphere and easy servicing. ^ 2 cl, 1 dwg |
