| 摘要 |
FIELD: multijet impeller liquid meters used to measure flow rate and amount of liquid flowing in pipe-line. SUBSTANCE: body housing two-jet measuring mechanism made of sleeve, impeller and cover has shaped partition. One part of it is located on one side of longitudinal axis of body, the other part is on the other side and third part is positioned between sleeve and outlet branch pipe. Partition together with sleeve and walls of body form central space bordering on inlet pipe-line and two side spaces adjoining outlet branch pipe. Thanks to this measured liquid is divided into two streams rotating impeller in one direction and with it unloading its supports from forces interacting with streams. Packing laid in grooves of sleeve ensures leak-tight separation of streams. Invention makes it feasible to prolong operational life of meter to 10-12 years, meter has simplified design and diminished overall dimension along vertical line. Owing to manufacture of measuring mechanism in the form of one module its replacement is possible without dismantling of body from pipe-line. EFFECT: prolonged operational life, simplified design and diminished vertical dimension of meter, possibility of replacement of measuring mechanism without dismantling of body from pipe-line. 1 cl, 10 dwg |
