Novel ultrasonic heat meter

The utility model relates to a novel ultrasonic heat meter which comprises a heat meter body, a replacement pipe and a protective cover, the replacement pipe is detachably installed in a measuring pipe of the heat meter body, the protective cover is sleeved on the heat meter body, and a fixing assembly is arranged between the protective cover and a pipeline of the heat meter body to be installed. Baffles are detachably installed on the two sides of the protective cover, a transparent observation window is arranged on the side, close to the calorimeter body, of the protective cover, round holes corresponding to control buttons on the calorimeter body are formed in the transparent observation window, and elastic rubber pads are arranged in the round holes. The protective device is good in protective effect, and the replacement pipe is convenient to replace. 本实用新型是一种新型超声波热量表，包括热量表本体，还包括替换管和防护罩，替换管可拆卸安装在热量表本体的测量管内，防护罩套设在热量表本体上，且防护罩与待安装热量表本体的管道之间设有固定组件，防护罩两侧可拆卸安装有挡板，防护罩靠近热量表本体的表体一侧设有透明观察窗，且透明观察窗上设有与表体上控制按钮对应的圆孔，圆孔