The invention discloses a cooling device of a testing
machine. The cooling device comprises a first
water storage tank which is a container with an opening in the upper and a second
water storage tank which is a container with an opening in the upper, the second
water storage tank and the first
storage tank are arranged in a gradient manner, the first
water storage tank is higher than the second
water storage tank in position, the top of the second
water storage tank is communicated with the lower portion of the
water level of the upper portion of the first water
storage tank through a second water feeding
pipe, the bottom of the second water
storage tank is communicated with the bottom of the first water storage tank through a second water draining
pipe, the bottom and the top of the second water storage tank are communicated through a third circulating
water pipe, and a flow control valve is arranged on the third circulating
water pipe; a
temperature control device and a water pump are arranged on the first circulating water inlet
pipe, and the
temperature control device detects the temperature of cooling water of the first circulating water inlet pipe, and controls the opening degree of the flow control valve according to the set temperature value so as to achieve cooling. According to the device, three-time cooling and automatic temperature adjusting functions of water can be achieved, the
cooling effect is good, used
water resources are few, and the device is environment-friendly and low in
energy consumption.