Asphalt quality detecting means constant temperature water bath

The present invention discloses a water bath apparatus for testing the quality of bitumen, bitumen belonging to the field detection. The apparatus comprises a body of the device, is provided in the body constant temperature water bath and the storage tank, the storage tank is provided with a control end of the heating means, cooling means and a first temperature sensor, first temperature sensor and the heating means and cooling means connected , constant temperature water bath and the storage tank through the return pipe and the inlet pipe connection, provided with a pump inlet pipe through which water flows into the inlet pipe from the storage tank water bath tank, the storage tank from flowing back through the water bath tank return pipe, a second temperature sensor is provided on a thermostat water bath, a second temperature sensor connected to the control terminal of the pump. Feature of the present invention are low energy consumption, precise temperature control, a wide range.