End cover structure and water chiller

An end cover structure comprising:

• an end cover body;
• a water inlet pipe, provided on the end cover body;
• a water outlet pipe, provided on the end cover body, and the water outlet pipe and the water inlet pipe being provided independent of each other;
• a bypass pipeline in which two cavities are formed, a first of the two cavities being communicated with the water inlet pipe, and a second of the two cavities being communicated with the water outlet pipe;
• an adjusting member, movably provided in the bypass pipeline, wherein, the adjusting member is movable to adjust communication between the two cavities;
• a controller, wherein the controller is provided at an end of the bypass pipeline, and is in transmission connection with the adjusting member;
• and the controller can control the adjusting member to move and then to adjust a circulation volume of fluid flowing between the two cavities;
• and
• a pressure sensor, in electrical connection with the controller, wherein the pressure sensor is configured to detect pressure difference in the water inlet pipe and the water outlet pipe;
• when the pressure difference is less than a pressure difference threshold, the controller controls movement of the adjusting member to adjust the circulation volume.