煤样液氮温度传递测试装置及测试方法

• Format: Patent
• Language: Chinese
• Published: 02.02.2024
• Subjects: MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

本发明公开了一种煤样液氮温度传递测试装置，包括接触室、液氮箱和多通道数据采集仪，多通道数据采集仪连接有计算装置；接触室中心孔的顶部螺纹连接有螺栓；接触室底部设有液氮槽；螺栓与支撑台阶之间的中心孔内装有煤岩试样，煤岩试样顶部的安装孔内设有热电偶，各水平通道正对的保温层与煤岩试样之间分别连接有热电偶；液氮槽连接有进氮管和出氮管，进氮管连接液氮箱；出氮管连接三通阀，三通阀连接有第二安全阀和泄压阀。本发明还公开了使用上述测试装置进行的测试方法。本发明能够稳定液氮气化时产生的压力，研究液氮与煤岩试样接触后煤岩试样中不同位置处的温度变化规律，为针对特定矿区煤岩试样得到最佳的增透工艺参数提供基础。 The invention discloses a test device for liquid nitrogen temperature transfer in a coal sample. The device includes a contact chamber, a liquid nitrogen box and a multi-channel data collection instrument. The multi-channel data collection instrument is connected with a calculation device. A bolt is connected with the top of a center hole of the contact chamber in a threaded manner. A liquid nitrogen slot is arranged at the bottom of the contact chamber. A coal rock test sample is mounted in the central hole between the bolt and a support step. A thermocouple is mounted in a mounting hole at the top of the coal rock test sample. A thermocouple is connected between a heat-insulation layer directly facing each horizontal