Double-layer multi-runner pile-up valve and automobile thermal management system applying same

The invention provides a double-layer multi-flow-channel pile-up valve and an automobile thermal management system applying the double-layer multi-flow-channel pile-up valve, the double-layer multi-flow-channel pile-up valve comprises a valve main body, a plurality of internal flow channels are constructed in the valve main body, and the internal flow channels are arranged into a first layer and a second layer in the thickness direction of the valve main body; the valve body comprises a first end face, a second end face and a peripheral side wall located between the first end face and the second end face, a plurality of pipe connectors are formed in the peripheral side wall at intervals in the circumferential direction of the peripheral side wall, and flow channel openings in the two ends of each internal flow channel are located in the corresponding pipe connectors respectively. The internal flow channel in the valve body is arranged in the first layer and the second layer in the thickness direction of the i