What are the commonly used heat tracing media for process pipelines in installations? What is its scope of application?
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What are the commonly used heat tracing media for process pipelines in installations? What is its scope of application? Please actively participate and reply based on the actual situation of your own device. The more you participate, the more you will gain.
Generally, ⒈0MPa steam tracing is used.
1. Low-pressure steam medium with a temperature above 130°C. . . (Hot oil pipelines with a freezing point higher than the ambient temperature, etc.) 2. Electric heating tape. . . (It is not suitable to be exposed to steam or places without steam sources) 3. Thermal transfer oil. . . (It is not suitable to be exposed to steam or places without steam sources) etc. . . :lol This post was last edited by wangsc on 2009-3-1 10:41 ]
1. The most common one is steam tracing, which can be used for: Heavy oil, heavy hydrocarbons, medium with higher temperature and lower freezing point 2. Hot water tracing can be used: Water lines, instruments, low-temperature media, volatile media, media temperatures below 100 degrees, 3. Electric heating. Available for: Instruments, media with strict temperature requirements 4, oil heating, can be used: Medium with strict temperature requirements. 5. Thermal conductive cement can be used for long pipelines. This post was last edited by jinzi1973 on 2009-3-1 11:04 ]
Our unit mainly uses 1.0 kg of steam and thermal oil as heating and heat tracing media. :)
answer: There are four commonly used heat tracing media in process pipelines.: (1) Hot water: It is suitable for use as a heat source for heat tracing when the operating temperature is not high or high-temperature heating media cannot be used. ； (2) Steam: Generally used for heat tracing where the operating temperature of the medium in the pipe is less than 150°C ； (3) Heat carrier: It is generally used in jacketed heating systems where the operating temperature of the medium in the pipe is greater than 150°C. Commonly used heat carriers include heavy diesel or distillate oil with a distillation range greater than 300°C, biphenyl-diphenyl ether or hydrogenated terphenyl, etc. ； (4) Electric heating: Electric heating is not only suitable for various situations of steam tracing, but also suitable for heat-sensitive medium pipes. It can effectively control the temperature and prevent the pipe temperature from overheating. ； It is suitable for heat tracing of pipes or equipment that are dispersed or far away from the steam supply point and equipment with irregular appearance (such as pumps).
1. The most common one is 1.0MPa steam tracing, which can be used: Heavy oil, medium with higher temperature, lower freezing point, and difficult to vaporize medium 2. The second is low-temperature hot water heating, which can be used: Water lines, low-temperature media, volatile media, container glass plates and instrument heating 3. The third is electric heating, which can be used: Medium with strict temperature requirements, expansion joints of catalytic flue, etc.
Use steam for pipelines and thermal oil for asphalt.
At present, energy saving has become the main goal, and the use of low-temperature heat sources is emphasized. Therefore, high-temperature water, 0.3MPa steam, and 1.0MPa steam are rarely used in various refineries.