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Anhui Tiankang (Group) Co., Ltd
Tiankang water electric heating resistor
NegotiableUpdate on 01/11
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Overview
Tiankang Hydroelectric Thermal Resistors can be used to measure temperatures within the range of -50 to 450 ℃, and can be directly connected to secondary instruments using copper wires. Due to its excellent electrical output characteristics, it can provide accurate temperature change signals for displays, recorders, regulators, scanners, data loggers, and computers.
Product Details
The Tiankang water electric heating resistor is suitable for installation in situations where the upper conductor, lower conductor, and bearing are used. This product has imported PTFE sheath for the lead wire (oil and temperature resistant), with a silver plated shielding structure inside. The resistor is detachable and easy to install. The platinum thermistor has the advantages of accuracy, sensitivity, fast thermal response time, stable quality, and long service life.
Tiankang Hydroelectric Thermal Resistors can be used to measure temperatures within the range of -50 to 450 ℃, and can be directly connected to secondary instruments using copper wires. Due to its excellent electrical output characteristics, it can provide accurate temperature change signals for displays, recorders, regulators, scanners, data loggers, and computers. 1. Using high-quality Pt100 chips. As mentioned earlier, platinum resistors are superior to temperature measuring resistors made of other materials, and the quality of platinum resistor chips also varies greatly. The Pt100 chip should be produced using sputtering lithography technology, with an accuracy requirement of *. This type of chip has minimal drift, high long-term stability, and resistance to impact and vibration. The chip pins are made of platinum nickel alloy. Because the chip pins ultimately need to be soldered to the core wire of the wire or armor wire, soldering can easily cause the metal material to become brittle and break, making it a weak link. The use of platinum nickel alloy for chip pins can ensure the mechanical properties of the leads after soldering, avoiding wire breakage inside the sensor.
The Tiankang water electric heating resistor uses specially designed wires. The hardening and brittleness of wires immersed in oil for a long time is caused by the improper selection of insulation materials for the outer layer of the wire, such as PVC material, which has poor oil and temperature resistance. In high temperature environments, its oil resistance performance will be greatly reduced, and its service life will be greatly shortened. After being soaked in oil at higher temperatures for a long time, the wire will become harder and more brittle. We use wire materials that are resistant to oil and temperature. We have chosen perfluoroethylene propylene (TEF), abbreviated as F-4, which is a copolymer of tetrafluoroethylene and hexafluoropropylene and a modified material of polytetrafluoroethylene. It has excellent oil resistance, corrosion resistance, and heat resistance, and can be used for a long time at temperatures ranging from -250 to 250 ℃. Other substances such as strong acids (including concentrated nitric acid and aqua regia), strong bases, strong oxidants, oils, ketones, ethers, alcohols, etc. do not have a corrosive effect on it even at high temperatures, except for fluorine and molten alkali metals under high temperature and pressure. In addition, its crack resistance is also very outstanding, which can solve the problem of wire cracking caused by prolonged immersion in oil.
Add a protective device at the junction of the wire and the temperature measuring resistor. Mainly solve the problem of wire root breakage. According to the on-site situation, choose different forms of protection, such as conical spring protection tube, corrugated tube, and armor wire extension protection. It is particularly important to emphasize the armor wire extension protection method here, which extends the armor wire inside the sensor all the way out, so that the part of the wire that is affected by oil flow impact is all armor wire. In fact, armor wire is a stainless steel wire that can be bent arbitrarily, with excellent resistance to corrosion, impact, and vibration. This can solve the problem of wire corrosion and impact caused by oil flow. Longer service life and more reliable performance.
Tiankang water electric heating resistor product features:
1. Integrated mesh shielding of temperature measuring resistors and their wires: In theory, magnetic fields are more difficult to shield than electric fields, and mesh shielding is an effective solution for strong magnetic field interference. Due to the proximity of the thrust and upper guide bearings to the generator, the mesh shielding of the temperature measuring resistors for the thrust and upper guide tiles is particularly important. The temperature measurement system has many and long wires, and there are many intermediate links. When wiring, special attention should be paid, and the shielding wire of the wire should be reliably connected to the common grounding terminal at each link.
2. Wiring methods above three wire system: We recommend using the three wire system wiring method. The sensor itself should be made into a three wire system, and all links in the temperature measurement system should be wired using the three wire system to effectively ensure measurement accuracy. It is particularly emphasized here that the two-wire wiring method must not be used.
3. Packaging process and structure: Fully armored packaging process, using armored wire produced by specialized German factories. This type of armored wire is produced through processes such as high-purity magnesium oxide filling, high-temperature drying, wire drawing, rolling, and annealing. Its characteristics are long service life, fast response speed, high mechanical strength, and good insulation. Do not use a tail connector structure for temperature measuring resistors used for tile temperature and tile oil temperature.
4. Customized temperature measuring resistors: For specific power plants, temperature measuring resistors need to be designed and manufactured with specificity.
At present, there are many manufacturers producing oil resistant (oil tank) cables, but few can achieve oil and temperature resistant three core lead resistance *. For the 20-30 meter three wire system, each conductor has only 0.01 ohms, and the resistance values of the three leads must be the same. Only by connecting Pt100 thermal resistors in this way can the standard be achieved,
Thermal resistance, silver plated shielded lead wire cable specifications, model:
Oil resistant and temperature resistant cable (oil tank) KHFRP21 type with Pt100 thermal resistance three core, four core, six core shielded silver plated wire, P100 thermal resistance extension wire, compensation wire,
The thermal resistance index numbers are CU50, CU100, G53, Pt100, Pt500, Pt1000. The number of cores is 2, 3, 4, 6, and 8
Core specifications 3 * 7/0, 15 | 3 * 7/0, 20 | 3 * 19/0, 15 | 3 * 19/0, 16 | 3 * 19/0, 18 | 6 * 7/0, 15 | 6 * 7/0, 20 | 6 * 19/0, 15 | 6 * 19/0, 16 | 6 * 19/0, 18|
Core wire insulation layer color: two red and one white or two white and one red or other requirements
Outer diameter insulation layer: white transparent imported oil and temperature resistant PTFE, blue imported oil and temperature resistant PTFE, red imported oil and temperature resistant PTFE, or other colors,
Insulation materials: imported oil resistant PTFE TEF (260 ℃), TEF (200 ℃), PVC material (106 ℃), silicone rubber flexible wire,
The shielding layer is: silver plating layer/copper wire layer/tin plating layer
Overall outer diameter: 2.8mm~6.5mm
The thermal resistance produced is easy to install and detachable.
Tiankang Hydroelectric Thermal Resistors can be used to measure temperatures within the range of -50 to 450 ℃, and can be directly connected to secondary instruments using copper wires. Due to its excellent electrical output characteristics, it can provide accurate temperature change signals for displays, recorders, regulators, scanners, data loggers, and computers. 1. Using high-quality Pt100 chips. As mentioned earlier, platinum resistors are superior to temperature measuring resistors made of other materials, and the quality of platinum resistor chips also varies greatly. The Pt100 chip should be produced using sputtering lithography technology, with an accuracy requirement of *. This type of chip has minimal drift, high long-term stability, and resistance to impact and vibration. The chip pins are made of platinum nickel alloy. Because the chip pins ultimately need to be soldered to the core wire of the wire or armor wire, soldering can easily cause the metal material to become brittle and break, making it a weak link. The use of platinum nickel alloy for chip pins can ensure the mechanical properties of the leads after soldering, avoiding wire breakage inside the sensor.
The Tiankang water electric heating resistor uses specially designed wires. The hardening and brittleness of wires immersed in oil for a long time is caused by the improper selection of insulation materials for the outer layer of the wire, such as PVC material, which has poor oil and temperature resistance. In high temperature environments, its oil resistance performance will be greatly reduced, and its service life will be greatly shortened. After being soaked in oil at higher temperatures for a long time, the wire will become harder and more brittle. We use wire materials that are resistant to oil and temperature. We have chosen perfluoroethylene propylene (TEF), abbreviated as F-4, which is a copolymer of tetrafluoroethylene and hexafluoropropylene and a modified material of polytetrafluoroethylene. It has excellent oil resistance, corrosion resistance, and heat resistance, and can be used for a long time at temperatures ranging from -250 to 250 ℃. Other substances such as strong acids (including concentrated nitric acid and aqua regia), strong bases, strong oxidants, oils, ketones, ethers, alcohols, etc. do not have a corrosive effect on it even at high temperatures, except for fluorine and molten alkali metals under high temperature and pressure. In addition, its crack resistance is also very outstanding, which can solve the problem of wire cracking caused by prolonged immersion in oil.
Add a protective device at the junction of the wire and the temperature measuring resistor. Mainly solve the problem of wire root breakage. According to the on-site situation, choose different forms of protection, such as conical spring protection tube, corrugated tube, and armor wire extension protection. It is particularly important to emphasize the armor wire extension protection method here, which extends the armor wire inside the sensor all the way out, so that the part of the wire that is affected by oil flow impact is all armor wire. In fact, armor wire is a stainless steel wire that can be bent arbitrarily, with excellent resistance to corrosion, impact, and vibration. This can solve the problem of wire corrosion and impact caused by oil flow. Longer service life and more reliable performance.
Tiankang water electric heating resistor product features:
1. Integrated mesh shielding of temperature measuring resistors and their wires: In theory, magnetic fields are more difficult to shield than electric fields, and mesh shielding is an effective solution for strong magnetic field interference. Due to the proximity of the thrust and upper guide bearings to the generator, the mesh shielding of the temperature measuring resistors for the thrust and upper guide tiles is particularly important. The temperature measurement system has many and long wires, and there are many intermediate links. When wiring, special attention should be paid, and the shielding wire of the wire should be reliably connected to the common grounding terminal at each link.
2. Wiring methods above three wire system: We recommend using the three wire system wiring method. The sensor itself should be made into a three wire system, and all links in the temperature measurement system should be wired using the three wire system to effectively ensure measurement accuracy. It is particularly emphasized here that the two-wire wiring method must not be used.
3. Packaging process and structure: Fully armored packaging process, using armored wire produced by specialized German factories. This type of armored wire is produced through processes such as high-purity magnesium oxide filling, high-temperature drying, wire drawing, rolling, and annealing. Its characteristics are long service life, fast response speed, high mechanical strength, and good insulation. Do not use a tail connector structure for temperature measuring resistors used for tile temperature and tile oil temperature.
4. Customized temperature measuring resistors: For specific power plants, temperature measuring resistors need to be designed and manufactured with specificity.
At present, there are many manufacturers producing oil resistant (oil tank) cables, but few can achieve oil and temperature resistant three core lead resistance *. For the 20-30 meter three wire system, each conductor has only 0.01 ohms, and the resistance values of the three leads must be the same. Only by connecting Pt100 thermal resistors in this way can the standard be achieved,
Thermal resistance, silver plated shielded lead wire cable specifications, model:
Oil resistant and temperature resistant cable (oil tank) KHFRP21 type with Pt100 thermal resistance three core, four core, six core shielded silver plated wire, P100 thermal resistance extension wire, compensation wire,
The thermal resistance index numbers are CU50, CU100, G53, Pt100, Pt500, Pt1000. The number of cores is 2, 3, 4, 6, and 8
Core specifications 3 * 7/0, 15 | 3 * 7/0, 20 | 3 * 19/0, 15 | 3 * 19/0, 16 | 3 * 19/0, 18 | 6 * 7/0, 15 | 6 * 7/0, 20 | 6 * 19/0, 15 | 6 * 19/0, 16 | 6 * 19/0, 18|
Core wire insulation layer color: two red and one white or two white and one red or other requirements
Outer diameter insulation layer: white transparent imported oil and temperature resistant PTFE, blue imported oil and temperature resistant PTFE, red imported oil and temperature resistant PTFE, or other colors,
Insulation materials: imported oil resistant PTFE TEF (260 ℃), TEF (200 ℃), PVC material (106 ℃), silicone rubber flexible wire,
The shielding layer is: silver plating layer/copper wire layer/tin plating layer
Overall outer diameter: 2.8mm~6.5mm
The thermal resistance produced is easy to install and detachable.
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