Inlet nozzle parallel connection and integral series connection ejector

The invention discloses an inlet nozzle parallel connection and integral series connection ejector, which consists of two sub ejectors A and B which are connected in series. The ejector A comprises inlet nozzles (1-1 and 1-2), suction chambers (2-1 and 2-2), suction pipes (3-1 and 3-2) and tube inlet sections (4-1 and 4-2) which are separated by inner walls (6) between every two parts; and the ejector B comprises a suction pipe (8), a tube (9) and a diffusion pipe (10). The ejectors A and B are connected together in series through a connection nozzle (7). The fluid is mixed at the rear semi section of a tube (5) through the ejector A, then the mixed fluid is transferred to the ejector B through the connection nozzle (7), is mixed with the fluid which enters the suction pipe (8) at the tube (9), and then is transferred out through the diffusion pipe (10). The inlet nozzle parallel connection and integral series connection ejector has a relatively independent and simple structure, is simple to operate, and is a