The quality of the zirconia oxygen analyzer determines the life of the test, the accuracy of the measurement, etc., which is very important. Therefore, when using the zirconia oxygen analyzer, the method of introducing the gas to be measured must be straight. Plug-in and sample detection.
The quality of the zirconia oxygen analyzer determines the life of the test, the accuracy of the measurement, etc., which is very important. Therefore, when using the zirconia oxygen analyzer, the method of introducing the gas to be measured must be straight. Plug-in and sample detection. The in-line type has a short response time, does not require a heater, has a simple structure, is small and light, but requires simultaneous detection of the temperature of the gas to be measured. Sampling and detection type Since the temperature of the oxygen probe is controlled by the heater, the measurement accuracy is high and the operation is reliable, but the response time depends on the flow rate of the gas.
The in-line zirconia oxygen analyzer has been widely used in the determination of the oxygen content of flue gas in boilers and furnaces. The oxygen probe used for this purpose mostly adopts a tubular structure, and the tube can be opened at both ends or can be opened at one end. The latter is the most popular in the market. The inner and outer walls of the ZrO2 tube are coated with a porous Pt electrode, and the inner and outer electrodes are respectively extended to the tube end and the Ni Cr wire is taken out at the end for signal output, thereby controlling the combustion system to achieve low-oxygen combustion, thereby reducing heat energy loss and saving energy. .
Proper installation of the zirconia oxygen analyzer is the key to ensuring reliable operation of the oxygen sensor. Many of the problems are caused by improper installation of the oxygen sensor. The zirconia oxygen analyzer can be installed horizontally or vertically, with vertical mounting ideal. Regardless of the method used, the direction of the probe sampling tube guide plate should be as close as possible to the direction of the airflow to be measured. In the initial installation, the basic direction is determined by understanding the process. Then, after the system is energized and heated, the direction of the sampling tube is rotated, and the fluctuation of the output oxygen potential is observed using a digital multimeter to finally determine a better guiding direction.
The joint used in the installation of zirconia oxygen analyzer is a special flange joint, which is equipped with asbestos pad to ensure sealing. Otherwise, because the furnace is negative pressure, the air leakage at the flange joint will affect the measurement accuracy or cause the signal. fluctuation. The signal lead of the zirconia oxygen analyzer is preferably shielded to eliminate interference. The best way is to use two 2-core cables, one 2-core shielded cable to connect the oxygen potential output signal, and a 2-core KVV control cable to the probe heating connection; if the field conditions are not available, a 4-core KVV cable can be used directly. Connect the probe oxygen potential signal to the heating terminal.
The gas metering port of the zirconia oxygen analyzer is normally closed, and is only used when the gas is calibrated; the purging port is connected to the air pump or the compressed air line, and the air intake of the purging port is generally controlled by a valve such as a solenoid valve, and is opened once in a certain period. The gas is purged from the sampling tube. When the probe is normally tested, the valve is closed and no other gas can enter the sampling tube. Purging the probe with the compressed air of the factory must ensure that there is no moisture in the compressed air, so the compressed air used must be separated immediately.
Some problems can be reflected by their own reactions, and sometimes we can avoid many problems as long as we are careful. The above content hopes to help everyone and make better use of the zirconia oxygen analyzer.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
The quality of the zirconia oxygen analyzer determines the life of the test, the accuracy of the measurement, etc., which is very important. Therefore, when using the zirconia oxygen analyzer, the method of introducing the gas to be measured must be straight. Plug-in and sample detection. The in-line type has a short response time, does not require a heater, has a simple structure, is small and light, but requires simultaneous detection of the temperature of the gas to be measured. Sampling and detection type Since the temperature of the oxygen probe is controlled by the heater, the measurement accuracy is high and the operation is reliable, but the response time depends on the flow rate of the gas.
The in-line zirconia oxygen analyzer has been widely used in the determination of the oxygen content of flue gas in boilers and furnaces. The oxygen probe used for this purpose mostly adopts a tubular structure, and the tube can be opened at both ends or can be opened at one end. The latter is the most popular in the market. The inner and outer walls of the ZrO2 tube are coated with a porous Pt electrode, and the inner and outer electrodes are respectively extended to the tube end and the Ni Cr wire is taken out at the end for signal output, thereby controlling the combustion system to achieve low-oxygen combustion, thereby reducing heat energy loss and saving energy. .
Proper installation of the zirconia oxygen analyzer is the key to ensuring reliable operation of the oxygen sensor. Many of the problems are caused by improper installation of the oxygen sensor. The zirconia oxygen analyzer can be installed horizontally or vertically, with vertical mounting ideal. Regardless of the method used, the direction of the probe sampling tube guide plate should be as close as possible to the direction of the airflow to be measured. In the initial installation, the basic direction is determined by understanding the process. Then, after the system is energized and heated, the direction of the sampling tube is rotated, and the fluctuation of the output oxygen potential is observed using a digital multimeter to finally determine a better guiding direction.
The joint used in the installation of zirconia oxygen analyzer is a special flange joint, which is equipped with asbestos pad to ensure sealing. Otherwise, because the furnace is negative pressure, the air leakage at the flange joint will affect the measurement accuracy or cause the signal. fluctuation. The signal lead of the zirconia oxygen analyzer is preferably shielded to eliminate interference. The best way is to use two 2-core cables, one 2-core shielded cable to connect the oxygen potential output signal, and a 2-core KVV control cable to the probe heating connection; if the field conditions are not available, a 4-core KVV cable can be used directly. Connect the probe oxygen potential signal to the heating terminal.
The gas metering port of the zirconia oxygen analyzer is normally closed, and is only used when the gas is calibrated; the purging port is connected to the air pump or the compressed air line, and the air intake of the purging port is generally controlled by a valve such as a solenoid valve, and is opened once in a certain period. The gas is purged from the sampling tube. When the probe is normally tested, the valve is closed and no other gas can enter the sampling tube. Purging the probe with the compressed air of the factory must ensure that there is no moisture in the compressed air, so the compressed air used must be separated immediately.
Some problems can be reflected by their own reactions, and sometimes we can avoid many problems as long as we are careful. The above content hopes to help everyone and make better use of the zirconia oxygen analyzer.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
Ferro Molybdenum
Ferro Molybdenum composed of molybdenum and iron, generally containing 50 to 60% of molybdenum, are used as alloying additives for steelmaking. Ferro molybdenum is an alloy of molybdenum and iron. Its main use is as a molybdenum addition agent in steelmaking. The addition of molybdenum to the steel allows the steel to have a uniform fine-grained structure and increase the hardenability of the steel, which is beneficial to the elimination of temper brittleness. In high-speed steel, molybdenum can replace a portion of tungsten. Molybdenum is used in combination with other alloying elements to produce stainless steels, heat-resistant steels, acid-resistant steels and tool steels, as well as alloys with special physical properties. Molybdenum added to cast iron can increase its strength and wear resistance.
Ferro Molybdenum
Ferro Molybdenum,Pure Ferro Molybdenum,Raw Materials Ferro Molybdenum
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