How to detect the lining thickness of a tungku listrik suhu luhur?

1. Métode kapasitansi

Metoda capacitance sarua jeung métode lalawanan. Sensor kapasitor sirkular coaxial dipasang di jero lapisan tungku, sareng nilai kapasitansi saluyu sareng panjangna. Ketebalan masonry tungku blast bisa ditangtukeun ku ngukur nilai capacitance.

2. Stress wave method

The stress wave signal is very sensitive to structural defects. When the stress wave propagates in the medium, such as holes, cracks and other interface discontinuities, reflection, refraction, scattering and mode conversion will occur. The thickness of the stave material can be determined.

3. Métode lalawanan

The resistance element is embedded inside the furnace lining, the front of the sensor is aligned with the inner surface of the furnace lining, and it is connected to the measurement system through a lead wire. The resistance value of the resistance element is related to its length. As the resistance element and the furnace lining lose synchronously, the resistance will change. Use the corresponding measurement The meter measures the electrical signal output by the component, and then the remaining thickness of the furnace lining can be measured online.

4. Métode deteksi aliran panas

Numutkeun térmodinamik, bédana suhu, konduktivitas termal sareng ketebalan témbok tungku nangtukeun inténsitas aliran panas. Pikeun lapisan tungku ledakan, konduktivitas termal tetep, sareng ketebalan témbok tungku tiasa didapet tina bédana suhu sareng inténsitas aliran panas.

The heat flow detection sensor is installed in the lower temperature part of the furnace lining. The heat flow intensity is calculated by the water temperature difference of the cooling wall of the hearth, and the temperature value measured by the thermocouple in the brick lining is combined to calculate the thickness of the furnace wall.

5. Métode ultrasonik

The thickness measurement is carried out at the point where the ultrasound propagates in the solid medium. At a constant temperature, the ultrasound is incident on the furnace lining and enters the furnace. The propagation time of the incident and reflection of the ultrasound in the furnace lining is used to obtain the residual thickness of the furnace lining.

6. Métode thermocouple multi-sirah

Several thermocouples of different lengths are installed in a protective sleeve, and then they are installed in the brick lining that needs to be inspected, and the erosion of the masonry can be inferred by measuring the temperature change of each thermocouple. When the temperature of each point and the temperature gradient between each point are basically stable, when the brick lining is gradually eroded to a certain part, the galvanic couple in that part will be destroyed, and the temperature signal will be abnormal.

7. Modél métode inferensi

It uses thermocouples salaku elemen deteksi, nerapkeun térmodinamik jeung téori séjén pikeun ngadegkeun model matematik tina hearth na tungku handap suhu situs, sarta ngitung posisi perkiraan tina garis solidification beusi molten jeung garis erosi bata karbon ngaliwatan programming software jeung analisis numeris.