Sheath of flexible thermocouple is drawn by special stainless steel in special process, so it is muchsofter thantraditional ones, but the performance is same, despite of flexibility. Flexible thermocouple can be inserted intozigzag thermowell and measure temperature of various structure inner the reactor.
The spring structure makes measuring end of spring loaded thermocouple or RTD adiustable. The adjustablerange of insertion length is about 15mm. Measuring end sticks to top of thermowell, making measurement fastand accurate. Spring loaded thermocouple or RTD is applicable to all kinds of thermowell.
It is suitable for temperature measurement of rotary kiln and other equipment, and the wireless temperature measurement system can transmit the temperature measurement signal remotely and wirelessly, and the wireless receiver has a display function.
It is used for direct measurement of various medium and high pressure small diameter (DN15~DN150) pipes.
It is suitable for temperature measurement and control in ultra-high pressure places in the production process of petroleum and chemical industry, especially in high-pressure polyethylene production equipment. The product is welded and sealed with double-layer packing, which can be used under 300MPa working condition for a long time.
Sectional connection can be used, the high temperature section uses a metal armor layer, and the non-hightemperature section can use high temperature compensation wire excess.
polypropylene (PP) plant reactor; It has a double-layer leak-proof structure; The measuring end is in direct contact with the medium, with fast response and high precision; The thermal response time is τ0.5<3s.
Thermowell of chemical fiber purpose RTD has a shrink structure. lt is thin in measuring end, so the sensortouches media wel, making measurement fast-response and accurate. Chemical fiber purpose RTD matchesthe requirement of low pressure and high accuracy in chemical fiber industry.
RTD Inside of measuring end Special cling structure (patented technology), it is applicable to occasion ofintense vibration.
With scale on the thermowell, thermocouple or RTD is applicable to the occasion of low tightness.Insertion length is adjustable by movable compression thread.
Right-angle thermocouple is applicable to high temperature production field. On occasions that gasesdo harm to connection head or thermocouple can not be installed horizontally or vertically, right-anglethermocouple is also suitable. Process connection: movable flange or movable compression thread.
Indoor thermometer is applicable to cold storage, oasthouse, thermostatic chamber, air-conditioned roomcommunications room, warehouse and other indoor or outdoor room which needs to control measurementIt measures accurately and is easy to install.
The casing or component of the corrosion-resistant thermocouple (resistance) is wrapped in polytetrafluoroethylene, known as the "king of plastics." It is resistant to the corrosion of most acids, alkalis, and organic substances. With a temperature measurement range of <200°C, it can replace expensive metal protective tubes such as high-nickel alloys, titanium, and tantalum. It has advantages such as low cost and ease of processing.
Linear dynamic surface thermocouples (temperature measuring cables or thermal cables) are used for temperature measurement and early warning on the surface of coal-water slurry gasifiers.
The sheath covered with refractory fibers, the reinforced blade thermocouple is more anti-corrosive and has a longer lifetime
Hoop thermocouple or RTD is applicable to measure temperature of pipel ine outer surface.
Surface thermocouple or RTD is applicable to surface temperature measurement of pipes, reactors and furnaces, with different forms of measuring end and fixed modes based on diferent equipments andenvironments, such as blade-type, wafer, hold hoop, clamp-on etc.
Our company's patented product features a COT thermocouple with a comparison thermocouple core, At themeasurement end, there is an R-type thermocouple with a short-term temperature measurement and an armored coreleakage, as well as a K-tye thermocouple with a long-tem temperature measurement, The R-tvpe thermocouple cardirectly contact the medium for temperature measurement and can measure temperatures with higher accuracy. Thistemperature data can be used as the actual temperature of the medium, and the temperature diference between theR-type thermocouple and the K-type thermocouple can be compared, By comparing the difference and adding thetemperature value of the K-type thermocouple, it is the actual temperature.
It is suitable for the temperature measurement of the catalytic riser of oil refining, and the casing has a prismatic structure, which can effectively resist the erosion of high-speed flowing catalyst particles contained in the medium.
COT thermocouple is mainly used to measure temperature of ethylene cracking furnace outlet. Beginningin 1998, our company has been committed to the research of COT thermocouple. Based on differentfurnaces and the users' different reguirements, we have desianed a variety of different structures of theCOT thermocouple, which replaced the imported products and are widely used in the major ethyleneprojects. Our products have characters of small measurement error and long service life, so they arewidely used, and make us one of the largest manufacturer of COT thermocouple.
it is aoplicable to refinery catalvticcracking unit, circulating fluidized bed, fluidized bed furnace, coal mil., cement plant, and other placeswhich contains solid granular media.
A multi-point flexible thermocouple suitable for temperature measurement in butanediol (BDOsynthesis reactors, with a maximum operating pressure rating of 2500 # (design pressure of 34.8MPaand design temperature of 204 '℃), and equipped with a pressure instrument for leakage detection.
It is used in coal-water slurry water-cooled wall gasifier (Tsinghua furnace, Jinhua furnace, Luxi furnace, etc.); There are 3 temperature sensors, two K-type and one B-type, the K type is used to measure the temperature of the annular cavity and the water wall temperature, and the B type is used to measure the temperature of the furnace combustion chamber, and the double-layer anti-leakage and detachable structure are set.
Our company has a variety of multi-point thermocouples suitable for ethylene glycol reactors. According to the process requirements, it can be divided into: single branch multi-point, multi-branch multi-point; Fixed, core-pullable, leak-proof and so on.
It is suitable for temperature measurement inside various reactors, especially hydrogenation reactors, with multiple independent casings fixed with T-beam brackets to prevent casing from bending, and equipped with sealing chambers and leakage detection pressure gauges.
The cross-shaped temperature measurement thermocouple is a product developed by our company for measuring the temperature at the top of the blast furnace. Four sets of thermocouples are arranged in a cross layout, allowing for maintenance and replacement of thermocouples without shutting down the furnace. The thermocouple is held firmly against the inner wall of the casing by a spring, ensuring more accurate temperature measurement and more sensitive response.
The thermocouple is flexible and can be bent. The product uses three different sealing methods and a four-layer leak-proof structure, with a double-layer independent sealing chamber. It is also equipped with a pressure gauge or pressure sensor for monitoring.
The multipoint thermocouple is sealed with high-pressure sealing filler and metal compression fittings. A protective cover is installed beneath the flange surface to prevent the accumulation of dust at the flange root of the mounting tube from causing hydrogen embrittlement and corrosion of the thermocouple.
insertion depth can be adjusted ±250mm. The casing is a stainless steel bellows with a pressure resistance of 1MPa. The head is equipped with a fastening block for attaching to the hammer.
The single multi-point thermocouple produced by our company is a plurality of thermocouples in an armored tube, which is made by pulling the armor directly through the porous magnesium oxide column through multiple coupling wires, which has the advantages of flexibility, voltage resistance, leakage prevention, etc., and the thermocouple is a flexible structure.
RTD is flexible and bendable; The length of a single stick can reach up to 150m; With special mounting components, the thermal resistance in the interlayer in the storage tank, the inner and outer tank walls, the purge pipe, the bottom of the inner tank and other positions can be effectively installed and fixed
With special installation components, the RTD in the interlayer. inner andouter tank walls, purge pipe, and inner tank bottom can be effectivelyinstalled and fixed.With special installation components, the RTD in the interlayer. inner andouter tank walls, purge pipe, and inner tank bottom can be effectivelyinstalled and fixed.
Used for temperature measurement at the top of coke oven regenerators, with a thermocouple insertion depth of nearly 2 meters. It features a reinforced square box and support ribs to prevent deformation when installed horizontally in high-temperature environments. The adjustable insertion depth is facilitated by a movable flange connection.
Used for measuring temperature in the carbonization chamber of large-volume coke ovens, equipped with three layers of high-temperature resistant sheaths and a movable flange. The sheath is designed with multiple ventilation holes to allow for hot air convection, offering quick response and high accuracy.
It is suitable for measuring coal-water slurry gasifier furnace.Flange connection with anti-leakage seals,which are made of US imported volcanic ash assemblies. Thermowell with adjustment screw, according tothe actual thickness of the furnace wall to adiust the insertion depth, the measurement part of the use olspecial metal thermowell.
Gas injection thermocouple is an indispensable thermocouple in ammonia plant, increasing servicelife by blowing nitrogen or instrument air to force harmful gas out of thermowell, or preventing entryof harmful media by making the inside thermowell pressure greater than the furnace pressure.
It is applicable to measure temperature of more than 1000'c, with the thermowell material of corundumor carborundum. High temperature thermocouple has type of S, R and B of noble metal. Commonly, ithas the structure of assemble.
The bimetallic thermometer is a field measurement instrument suitable for measuring medium and low temperatures, capable of directly measuring the temperature of gases, liquids, and steam. This thermometer is characterized by its low cost, easy installation, and the ability to read measurements on-site, making it a partial replacement for other types of measuring instruments. It is widely used in industries such as petroleum, chemical, steel, and power generation.
Can choose NPTthread and weld,full penetration weld or integration forged.
Tantalum is expensive and can not be bulld-up welded with other stainless steel. So thermowell is separated from flange,which has a sealing face of tantalum.
The electronic temperature and pressure switches use electronic circuits to replace the traditional mechanical structures of switches, avoiding inherent weaknesses such as value drift, large hysteresis, low setpoint accuracy, jamming, and oxidation failure of micro-switch contacts. The electronic temperature and pressure switches utilize high-precision electrical signal sensors as signal inputs and connect to DCS/PLC systems via a two-wire system, eliminating the need for additional power supply to achieve switch functionality. The electronic switches feature a digital display and input keys, enabling visual monitoring and custom configuration of switch parameters.
LT series temperature transmiter adopts HART bussing technique, which is a new generation of intelligent temperaturemodule and an indispensable field device in process control. The device integrates a weath offunctional modules, whichcan realize both general function detection and complex control stratecies. Wsing digital technology, it can be applied toa variety of RTD and thermocouple sensors. The interface between the field and the control room is simple, and the cosof installation, operation and maintenance can be greatly reduced.
Application Industries
Petrochemical Industry
Chemical installations are equipment used to produce industrial products such as chemicals, synthetic materials, and oil. They are essential infrastructure in the chemical production process. The basic structure of a chemical installation mainly includes containers, pipelines, valves, pumps, heaters, coolers, reactors, and separators. Among these, containers are a vital component, with common types including storage tanks, reaction vessels, towers, and heat exchangers. When selecting materials for these containers and pipelines, considerations typically include corrosion resistance, high-temperature and high-pressure capabilities, as well as other physical and chemical requirements. Installing temperature instruments at appropriate locations for effective temperature monitoring is crucial for preventing, responding to, and managing potential abnormal or extreme conditions.
Application Industries
Metallurgical Industry
The metallurgical industry refers to the exploration, extraction, processing, smelting, and rolling of metal ores, encompassing both ferrous metallurgy (steel industry) and non-ferrous metallurgy. It is an important raw materials industrial sector. In the metallurgical industry, temperature control is critical, as most metals have high melting points and the production process requires high-temperature smelting. Therefore, high-temperature measuring devices are essential. Industrial thermocouples for contact temperature measurement have advantages such as simple structure, long service life, and ease of installation. When paired with high-temperature resistant ceramic sheaths, they can measure temperatures up to 1600°C. For materials containing highly corrosive substances, such as aluminum and copper liquids, our company's specially developed metals offer high-temperature resistance, oxidation resistance, and corrosion resistance, significantly extending the lifespan of thermometers.
Application Industries
Oil Refining Industry
Refining generally refers to petroleum refining, which is the process of separating crude oil into fuel oils such as kerosene, gasoline, and diesel through distillation. By-products include petroleum gas and residue oil. Further processing through techniques like vacuum distillation, catalytic cracking, catalytic reforming, hydrocracking, desulfurization, and delayed coking allows for thorough processing of crude oil and efficient extraction of petroleum products. Effective temperature control throughout all refining processes is crucial; inadequate control can affect product quality and, in severe cases, lead to serious accidents.
The thermometers produced by our company are designed and verified for use in various devices, featuring advantages such as high temperature measurement accuracy, rapid thermal response, flexibility, high-temperature resistance, and high-pressure resistance.
Application Industries
Nuclear Power Industry
Temperature instruments are crucial measurement devices in the operation of nuclear power plants, widely used in reactor control and signal acquisition, protection of important equipment, monitoring and alarms during and after accidents, as well as environmental monitoring, ensuring the normal operation and safety of nuclear power stations.
Temperature gauges in nuclear power plants can be categorized as NC and 1E based on whether they have safety functions. They can also be classified as ground-based or remote depending on whether the temperature gauge signals are transmitted remotely. The 1E instruments are the most representative, related to the safety and functional aspects of the nuclear power plant. 1E-level thermometers are the most widely used in nuclear power plants and are mainly classified into K1, Q1, and I levels. Generally, ground-based temperature gauges are NC level, lacking anti-vibration features, and are used for system and equipment debugging, while remote control systems include temperature sensors, switches, and more. The identification levels for NC temperature sensors are K3, Q2/Q3/NC, and I/NO.
Typically, safety-grade temperature instruments utilize Pt100 resistance thermometers and K or N-type thermocouples. Non-safety-grade temperature instruments include Pt100 resistance thermometers, K or E-type thermocouples, bimetallic thermometers, and pressure thermometers, among others.
Petrochemical Industry
Metallurgical Industry
Oil Refining Industry
Nuclear Power Industry
Continuously exploring and enhancing technology, striving to create more leading solutions.
Providing high-quality supporting services for temperature instruments of global brands, including customized supporting services for various temperature instruments such as nuclear measurement instruments, thermocouples, thermal resistors, and bimetallic thermometers.
Providing high-quality supporting services for temperature instruments of global brands, including customized supporting services for various temperature instruments such as nuclear measurement instruments, thermocouples, thermal resistors, and bimetallic thermometers.
Latest dynamic information from Lunte
The Sensor, Test and Measurement Technology Exhibition was held in Nuremberg, Germany, from May 22 to 24. Our company successfully participated and showcased to a wide range of domestic and international customers...
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On December 14, 2018, the Science and Technology Association of Zhejiang Lunte Electromechanical Co., Ltd. was approved by the Yueqing Science and Technology Association.
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On December 14, 2018, Zhejiang Lunte Electromechanical Co., Ltd. was approved by the Yueqing Science and Technology Association for its scientific and technological association...
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