Injection water distribution system for medicine production

The invention relates to an injection water distribution system for medicine production, and belongs to the field of pharmacy, the injection water distribution system comprises a heating tank, a water storage tank, a water supply pipe and a water return pipe which form a loop, the water return pipe is provided with an injection water use point, and the injection water use point comprises an injection water discharge pipe, a mixer, an injection water outlet pipe and an injection water discharge valve; a temperature detection element is mounted on the injection water outlet pipe; a three-way valve is arranged between the injection water outlet pipe and the injection water drain valve; the system further comprises a heat exchanger and a low-temperature liquid supply device, a high-temperature medium flowing pipeline and a low-temperature medium flowing pipeline are arranged in the heat exchanger, and the low-temperature liquid supply device is communicated with a water inlet of the low-temperature medium flowing