Liquid cooling heat exchange device and cold plate type liquid cooling system

The invention provides a liquid cooling heat exchange device and a cold plate type liquid cooling system, and relates to the technical field of data center cooling, the liquid cooling heat exchange device comprises an impurity remover, a heat exchanger, a bypass pipeline, a first controllable valve, a second controllable valve and at least one circulating water pump; the heat absorption side of the heat exchanger is arranged on an outdoor cold source pipeline, the heat release side of the heat exchanger, the at least one circulating water pump, the impurity remover and the first controllable valve are connected to a water distribution and collection device pipeline in series, the first controllable valve is connected with the impurity remover, the second controllable valve is arranged on the bypass pipeline, and the bypass pipeline is connected with the water distribution and collection device pipeline. And the bypass pipeline is connected with the impurity remover and the first controllable valve in parallel