Three-way pipeline valve combination device

A three-way pipeline valve combination device comprises a first medium temporary storage tank (200), a second medium temporary storage tank (201) and a conveying header pipe (202), and check valves (203) are arranged on liquid inlet pipelines of the first medium temporary storage tank (200) and the second medium temporary storage tank (201) respectively. The three-way valve has the advantages that the sealing performance between the valve seat and the valve clack of the three-way valve is good, and the valve cover can be opened for replacement when the valve seat or the valve clack is abraded. The check valve core has double guidance, so that the check valve core does not move up and down when being opened or closed in a high-pressure state, the sealing performance is good, and the service life is long. The joint of the check valve and the pipeline is sealed firmly, and leakage is not prone to occurring. 一种三通管路阀门联用装置，包括第一介质暂存罐(200)、第二介质暂存罐(201)和输送总管(202)，第一介质暂存罐(200)和第二介质暂存罐(201)的进液管道上分别设置有止回阀(203)；优点是：三通阀的阀座