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Novel hexafluoropropylene cracking temperature control system

A technology of temperature control system and hexafluoropropylene, applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., can solve the problems of inaccurate temperature control, high power consumption of cracking furnace temperature control system, etc., and achieve temperature control accuracy High efficiency, obvious energy saving and convenient operation

Pending Publication Date: 2019-11-05
JIANGXI LEE & MAN CHEM +1
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Problems solved by technology

[0005] In order to solve the problems of high power consumption and inaccurate temperature control of the cracking furnace temperature control system, the present invention provides a new type of hexafluoropropylene cracking temperature control system

Method used

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  • Novel hexafluoropropylene cracking temperature control system
  • Novel hexafluoropropylene cracking temperature control system
  • Novel hexafluoropropylene cracking temperature control system

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Embodiment 1

[0018] Such as figure 1 , figure 2 , image 3 As shown, this specific embodiment adopts the following technical solutions: including temperature detection point 1, DCS control room 2, intelligent temperature controller 3, 380V power supply 5, power regulator 6, heating element 8; temperature detection point 1 includes furnace tube measurement Temperature points G1, G2, G3, G4 and furnace temperature detection points L1, L2, L3 and control temperature temperature measurement point K such as figure 2 The position shown; there are five furnace tubes 22 in the hearth 21 of the horizontal cracking furnace 20, and the furnace tubes 22 have several heating elements 8;

[0019] In this embodiment, furnace temperature detection point L3, DCS control room 2, intelligent temperature controller 3, 380V power supply 5, power regulator 6, and some heating elements 8 constitute one section of the heating system; control temperature temperature measurement point K, DCS control room 2. In...

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Abstract

The invention discloses a novel hexafluoropropylene cracking temperature control system which comprises two heating systems. Each heating system comprises a temperature detection point, an intelligenttemperature controller, a DCS control room, a power regulator, a 380 V power supply and heating elements, wherein the intelligent temperature controller and the DCS control room are connected with the output end of the temperature detection point, the power regulator is connected with the output ends of the intelligent temperature controller and the DCS control room, the 380 V power supply is connected with the input end of the power regulator, and the heating elements are connected with the output end of the power regulator. The novel hexafluoropropylene cracking temperature control system has the advantages of accurate temperature detection, high representativeness, high temperature control precision, convenient operation, high safety and stability, electricity saving and energy consumption reduction; the temperature of cracking furnace tubes is uniform, and the heat loss is small.

Description

technical field [0001] The invention relates to the field of cracking furnace temperature control, in particular to a novel hexafluoropropylene cracking temperature control system. Background technique [0002] It is an extremely important perfluorinated intermediate in the organic fluorine industry, especially as a monomer of fluorine-containing materials, and has a wide range of applications. Industrial production mainly produces hexafluoropropylene through tetrafluoroethylene cracking. The production of hexafluoropropylene from tetrafluoroethylene is usually carried out in a tubular cracking reactor. The reaction temperature is 700-800°C, and it is an exothermic reaction. A disproportionation reaction will occur, and more heat will be released at the same time, causing the reaction to run out of control, and the carbon powder and high boiling substances produced at high temperature will block the pipeline. [0003] In the prior art, the cracking furnace used for the prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/22
CPCG05D23/22
Inventor 张茂明杨作宁余冉曾小伍李华
Owner JIANGXI LEE & MAN CHEM
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