CN117939714A - Cracking tube heating control method and device based on electromagnetic induction principle - Google Patents
Cracking tube heating control method and device based on electromagnetic induction principle Download PDFInfo
- Publication number
- CN117939714A CN117939714A CN202211305478.6A CN202211305478A CN117939714A CN 117939714 A CN117939714 A CN 117939714A CN 202211305478 A CN202211305478 A CN 202211305478A CN 117939714 A CN117939714 A CN 117939714A
- Authority
- CN
- China
- Prior art keywords
- tube
- temperature
- pyrolysis tube
- heating
- cracking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 150
- 238000005336 cracking Methods 0.000 title claims abstract description 136
- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000000197 pyrolysis Methods 0.000 claims abstract description 96
- 238000006243 chemical reaction Methods 0.000 claims abstract description 70
- 239000013077 target material Substances 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000010521 absorption reaction Methods 0.000 claims abstract description 24
- 238000004364 calculation method Methods 0.000 claims abstract description 12
- 230000006698 induction Effects 0.000 claims description 29
- 230000001276 controlling effect Effects 0.000 claims description 14
- 238000012937 correction Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a cracking tube heating control method and device based on an electromagnetic induction principle, wherein the method comprises the following steps: obtaining the flow and the flow velocity of a target material and the residence time in a cracking tube, thereby obtaining the heat absorbed by the material reaction; determining an initial output power of the electromagnetic heating device based on the material reaction absorption heat and the predetermined system loss heat; based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature. According to the invention, through the electromagnetic heating device and combining with system heat constant calculation, the output power of the electromagnetic heating device is dynamically adjusted based on the real-time acquired pyrolysis tube temperature, so that the precise constant-temperature control of the pyrolysis tube temperature is realized, and meanwhile, the failure rate of system equipment is reduced.
Description
Technical Field
The invention relates to the technical field of electromagnetic induction, in particular to a cracking tube heating control method and device based on an electromagnetic induction principle.
Background
At present, a common piece of domestic cracking technology adopts a magnetic voltage regulator or a heavy current generator, and is directly connected with a cracking tube to heat the cracking tube by heavy current.
The method has the defects of high energy consumption, unstable temperature control, low control precision, high equipment failure rate and the like, and a large number of copper bars are needed to be used when large current is adopted, so that the one-time investment is too high.
Disclosure of Invention
The invention provides a cracking tube heating control method, a cracking tube heating control device, electronic equipment and a storage medium based on an electromagnetic induction principle, which are used for solving the defects of high energy consumption, unstable temperature control and the like caused by heating a cracking tube by directly connecting the cracking tube with high current in the prior art, realizing accurate constant temperature control of the temperature of the cracking tube and reducing the failure rate of system equipment.
The invention provides a cracking tube heating control method based on an electromagnetic induction principle, which comprises the following steps:
obtaining the flow and the flow velocity of a target material and the residence time in a cracking tube, thereby obtaining the heat absorbed by the material reaction;
determining an initial output power of the electromagnetic heating device based on the material reaction absorption heat and a predetermined system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
Based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
The cracking tube heating control method based on the electromagnetic induction principle provided by the invention further comprises the following steps:
Based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the opening of the feed valve is regulated in real time, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
According to the pyrolysis tube heating control method based on the electromagnetic induction principle, the thermometers arranged at different positions of the pyrolysis tube at least comprise thermometers arranged at the feed inlet position, the middle position and the discharge outlet position of the pyrolysis tube.
According to the pyrolysis tube heating control method based on the electromagnetic induction principle provided by the invention, before the flow and the flow velocity of the target material and the residence time in the pyrolysis tube are obtained, the method further comprises the following steps:
And a preheating step, wherein a starting signal is given by the DCS distributed control system to control the electromagnetic heating device to preheat the cracking tube to the target material reaction temperature.
The cracking tube heating control method based on the electromagnetic induction principle provided by the invention further comprises the following steps:
Based on the temperature of the cracking tube obtained by the thermometers arranged at different positions of the cracking tube, introducing a correction coefficient by a DCS distributed control system through calculation;
and based on the correction coefficient, the output power of the electromagnetic heating device is adjusted in real time, so that the temperature of the cracking tube is stabilized at the reaction temperature of the target material.
According to the pyrolysis tube heating control method based on the electromagnetic induction principle provided by the invention, before the preheating step, the method further comprises the following steps:
calculating heating power according to the flow and the flow velocity of the target material and the residence time in the cracking tube at the maximum productivity and considering the system loss heat;
And calculating the diameter and the number of turns of the induction coil according to the heating power and by combining the pipe diameter and the length of the cracking pipe.
The cracking tube heating control method based on the electromagnetic induction principle provided by the invention further comprises the following steps:
The inter-turn density degree of the induction coil is adjusted.
The invention also provides a cracking tube heating control device based on the electromagnetic induction principle, which comprises:
The material reaction absorption heat calculation module is used for obtaining the flow rate and the flow velocity of the target material and the residence time in the cracking tube so as to obtain the material reaction absorption heat;
the initial output power determining module is used for determining the initial output power of the electromagnetic heating device based on the material reaction absorption heat and the preset system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
And the constant temperature control module is used for carrying out PID integral control operation by the DCS distributed control system based on the pyrolysis tube temperatures acquired by the thermometers arranged at different positions of the pyrolysis tube, and adjusting the initial output power of the electromagnetic heating device to be dynamic output power based on the PID integral control operation result so as to stabilize the pyrolysis tube temperature at the target material reaction temperature.
The invention also provides electronic equipment, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the cracking tube heating control method based on the electromagnetic induction principle when executing the program.
The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method for controlling the heating of a pyrolysis tube based on the principle of electromagnetic induction as described in any one of the above.
According to the cracking tube heating control method, device, electronic equipment and storage medium based on the electromagnetic induction principle, the flow and the flow velocity of a target material and the residence time in the cracking tube are obtained, so that the material reaction absorption heat is obtained; determining an initial output power of the electromagnetic heating device based on the material reaction absorption heat and a predetermined system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil; based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature. According to the invention, through the electromagnetic heating device and combining with system heat constant calculation, the output power of the electromagnetic heating device is dynamically adjusted based on the real-time acquired pyrolysis tube temperature, so that the precise constant-temperature control of the pyrolysis tube temperature is realized, and meanwhile, the failure rate of system equipment is reduced.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a pyrolysis tube heating control method based on an electromagnetic induction principle;
FIG. 2 is a schematic structural diagram of a pyrolysis tube heating control device based on the electromagnetic induction principle;
fig. 3 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The method, the device, the electronic equipment and the storage medium for controlling the heating of the cracking tube based on the electromagnetic induction principle are described below with reference to fig. 1-3.
Fig. 1 is a flowchart of a pyrolysis tube heating control method based on an electromagnetic induction principle provided by the invention, as shown in fig. 1, in a specific embodiment, the pyrolysis tube heating control method based on the electromagnetic induction principle provided by the invention includes the following steps:
s110, acquiring the flow and the flow velocity of a target material and the residence time of the target material in a cracking tube, so as to obtain the heat absorbed by the material reaction;
S120, determining initial output power of the electromagnetic heating device based on the material reaction absorption heat and the preset system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
S130, based on the pyrolysis tube temperatures obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
In this embodiment, the flow rate, the flow velocity, and the residence time of the target material in the pyrolysis tube are all preset known parameters. The predetermined system heat loss is the system heat loss of the cracking tube at the target material reaction temperature. DCS is an acronym for distributed control system (Distributed Control System). PID (pro-port INTEGRAL DERIVATIVE) is a control system that controls the Proportional, integral and derivative of errors generated by comparing information collected from real-time data of a controlled object with a given value in industrial process control. The temperature of the cracking tube refers to the temperature in the cracking tube which provides a cracking reaction space for the actual cracking reaction of the target material.
In this embodiment, according to the obtained flow rate and flow velocity of the target material and the residence time in the cracking tube, the material reaction absorption heat is calculated, which specifically includes: determining a temperature difference according to the specific heat capacity of the target material, the initial temperature and the reaction temperature input by the material, and determining the material quality according to the material flow, the material flow rate and the material residence time, so that the reaction absorption heat of the material can be calculated; determining an initial output power of the electromagnetic heating device based on the material reaction absorption heat and the predetermined system loss heat, specifically comprising: the heat consumption of the whole system, which is referred to by the heat consumption of the reservation system, can be measured in advance, and the value of the sum of the material reaction absorption heat and the heat consumption of the reservation system in unit time is equal to the initial output power of the electromagnetic heating device; the electromagnetic heating device is used for heating the cracking tube through the induction coil; based on the temperature of the cracking tube obtained by the thermometer arranged at different positions of the cracking tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the temperature of the cracking tube is stabilized at the target material reaction temperature, namely, the reaction temperature in the cracking tube for implementing detection is used as negative feedback to dynamically adjust the output power in real time, so as to correct the initial output power.
According to the cracking tube heating control method based on the electromagnetic induction principle, through the electromagnetic heating device and by combining system heat conservation calculation, the output power of the electromagnetic heating device is dynamically adjusted based on the cracking tube temperature acquired in real time, so that the accurate constant temperature control of the cracking tube temperature is realized, and meanwhile, the failure rate of system equipment is reduced.
In a specific embodiment, the cracking tube heating control method based on the electromagnetic induction principle provided by the invention further comprises the following steps:
Based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the opening of the feed valve is regulated in real time, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
In this embodiment, during the constant temperature control process, based on the temperature of the pyrolysis tube obtained by the thermometers arranged at different positions of the pyrolysis tube, the DCS distributed control system performs PID integral control operation, and based on the PID integral control operation result, adjusts the opening of the feed valve in real time, so that the temperature of the pyrolysis tube is stabilized at the target material reaction temperature, that is, in this embodiment, the output power of the electromagnetic heating device is kept unchanged, and the heat absorption of the material reaction is affected by adjusting the feed amount of the target material, thereby realizing the conservation of heat of the system and stabilizing the temperature of the pyrolysis tube at the target material reaction temperature.
According to the cracking tube heating control method based on the electromagnetic induction principle, the opening of the feed valve is adjusted in real time, so that the temperature of the cracking tube is stabilized at the target material reaction temperature, a regulating means of constant temperature control is expanded, the accurate constant temperature control of the temperature of the cracking tube is realized, and meanwhile, the failure rate of system equipment is reduced.
In a specific embodiment, according to the method for controlling heating of the pyrolysis tube based on the electromagnetic induction principle provided by the invention, the thermometers arranged at different positions of the pyrolysis tube at least comprise thermometers arranged at the feed inlet position, the middle position and the discharge outlet position of the pyrolysis tube.
In this embodiment, a plurality of thermometer monitoring points are sequentially arranged along different positions of the flow direction of the target material in the cracking tube, i.e. from the material inlet to the material outlet, and are used for measuring the temperature of the cracking tube, and the different positions at least comprise three positions of a feed inlet position, a cracking tube middle position, a discharge outlet position and the like.
According to the pyrolysis tube heating control method based on the electromagnetic induction principle, the thermometers arranged at different positions of the pyrolysis tube at least comprise the thermometers arranged at the feed inlet position, the middle position and the discharge outlet position of the pyrolysis tube, so that the realization path of temperature measurement is further enriched, and the accurate constant temperature control of the temperature of the pyrolysis tube is strongly supported.
In a specific embodiment, according to the method for controlling heating of a pyrolysis tube based on electromagnetic induction principle provided by the invention, before the flow rate and the flow velocity of the target material and the residence time in the pyrolysis tube are obtained, the method further includes:
And a preheating step, wherein a starting signal is given by the DCS distributed control system to control the electromagnetic heating device to preheat the cracking tube to the target material reaction temperature.
In this embodiment, the feed valve is not opened in the preheating process, that is, the target material does not enter the cracking tube, and at this time, the DCS distributed control system gives a start-up signal to control the electromagnetic heating device to preheat the cracking tube to the target material reaction temperature.
According to the cracking tube heating control method based on the electromagnetic induction principle, the DCS distributed control system gives out a starting signal to control the electromagnetic heating device to preheat the cracking tube to the target material reaction temperature, the preheating step of heating the cracking tube is further supplemented, and the accurate constant-temperature control of the temperature of the cracking tube is strongly supported.
In a specific embodiment, the cracking tube heating control method based on the electromagnetic induction principle provided by the invention further comprises the following steps:
Based on the temperature of the cracking tube obtained by the thermometers arranged at different positions of the cracking tube, introducing a correction coefficient by a DCS distributed control system through calculation;
and based on the correction coefficient, the output power of the electromagnetic heating device is adjusted in real time, so that the temperature of the cracking tube is stabilized at the reaction temperature of the target material.
In this embodiment, in the preheating step, due to the hysteresis characteristic of the electromagnetic heating device, the temperature of the pyrolysis tube is obtained through the thermometers arranged at different positions of the pyrolysis tube, the pyrolysis tube temperature is fed back to the DCS distributed control system, and the correction coefficient K (less than 1) is introduced through calculation, so that the output power of the electromagnetic heating device is adjusted in real time, and the pyrolysis tube temperature is stabilized at the target material reaction temperature.
According to the cracking tube heating control method based on the electromagnetic induction principle, the temperature of the cracking tube is stabilized at the target material reaction temperature by introducing the correction coefficient in the preheating step, so that the preheating step of heating the cracking tube is further refined, and the accurate constant-temperature control of the temperature of the cracking tube is strongly supported.
In a specific embodiment, the method for controlling heating of a pyrolysis tube based on the electromagnetic induction principle provided by the invention further includes, before the preheating step:
calculating heating power according to the flow and the flow velocity of the target material and the residence time in the cracking tube at the maximum productivity and considering the system loss heat;
And calculating the diameter and the number of turns of the induction coil according to the heating power and by combining the pipe diameter and the length of the cracking pipe.
In this embodiment, according to the flow rate and the flow velocity of the target material and the residence time in the cracking tube at the maximum capacity, and considering the system loss heat, the heating power is calculated, that is, the heating power includes the absorption heat and the system loss heat of the target material for completing the cracking reaction at the maximum capacity; and calculating the diameter and the number of turns of the induction coil according to the heating power and by combining the pipe diameter and the length of the cracking pipe.
According to the cracking tube heating control method based on the electromagnetic induction principle, heating power is calculated according to the flow and the flow velocity of the target material and the residence time in the cracking tube at the maximum capacity by taking the heat loss of the system into consideration, and then the diameter and the number of turns of the induction coil are calculated by combining the pipe diameter and the length of the cracking tube, so that the prepositive step of heating control of the cracking tube is further enriched, and the accurate constant-temperature control of the temperature of the cracking tube is strongly supported.
In a specific embodiment, the cracking tube heating control method based on the electromagnetic induction principle provided by the invention further comprises the following steps:
The inter-turn density degree of the induction coil is adjusted.
In this embodiment, based on the fact that the temperature of the target material at the feed inlet is low, and the pyrolysis reaction is an endothermic reaction, in order to keep the temperature of the whole pyrolysis tube constant, the induction coil at the feed inlet should be dense, the induction coil at the discharge outlet should be sparse, and the determination of the specific density layer degree can be specifically adjusted by combining the actual material throughput, the output power and the actual working conditions.
According to the cracking tube heating control method based on the electromagnetic induction principle, the pre-step of cracking tube heating control is further refined by adjusting the inter-turn density degree of the induction coil, and the accurate constant-temperature control of the temperature of the cracking tube is strongly supported.
The cracking tube heating control device based on the electromagnetic induction principle provided by the invention is described below, and the cracking tube heating control device based on the electromagnetic induction principle described below and the cracking tube heating control method based on the electromagnetic induction principle described above can be correspondingly referred to each other.
Fig. 2 is a structural diagram of a pyrolysis tube heating control device based on an electromagnetic induction principle, as shown in fig. 2, in a specific embodiment, the pyrolysis tube heating control device based on the electromagnetic induction principle provided by the invention includes:
The material reaction absorption heat calculating module 210 is configured to obtain a flow rate and a flow velocity of a target material and a residence time in the cracking tube, so as to obtain a material reaction absorption heat;
An initial output power determining module 220, configured to determine an initial output power of the electromagnetic heating device based on the material reaction absorption heat and a predetermined system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
The constant temperature control module 230 is configured to perform PID integral control operation by the DCS distributed control system based on the temperature of the pyrolysis tube obtained by the thermometers disposed at different positions of the pyrolysis tube, and adjust the initial output power of the electromagnetic heating device to be dynamic output power based on the PID integral control operation result, so that the temperature of the pyrolysis tube is stabilized at the target material reaction temperature.
According to the cracking tube heating control device based on the electromagnetic induction principle, the material reaction absorption heat calculation module, the initial output power determination module and the constant temperature control module are arranged, the output power of the electromagnetic heating device is dynamically adjusted based on the cracking tube temperature acquired in real time through the electromagnetic heating device and the system heat conservation calculation, so that the accurate constant temperature control of the cracking tube temperature is realized, and meanwhile, the failure rate of system equipment is reduced.
In a specific embodiment, the cracking tube heating control device based on the electromagnetic induction principle provided by the invention further comprises:
and the feed valve opening module is used for carrying out PID integral control operation by the DCS distributed control system based on the pyrolysis tube temperatures obtained by the thermometers arranged at different positions of the pyrolysis tube, and regulating the feed valve opening in real time based on the PID integral control operation result so as to stabilize the pyrolysis tube temperature at the target material reaction temperature.
According to the cracking tube heating control device based on the electromagnetic induction principle, the feeding valve opening module is arranged, the feeding valve opening is adjusted in real time, the temperature of the cracking tube is stabilized at the target material reaction temperature, the adjusting means of constant temperature control is expanded, the accurate constant temperature control of the temperature of the cracking tube is realized, and meanwhile, the failure rate of system equipment is reduced.
In a specific embodiment, the cracking tube heating control device based on the electromagnetic induction principle provided by the invention further comprises:
And the preheating module is used for giving a starting signal by the DCS distributed control system to control the electromagnetic heating device to preheat the cracking tube to the target material reaction temperature.
According to the cracking tube heating control device based on the electromagnetic induction principle, the preheating module is arranged, the starting signal is given through the DCS distributed control system to control the electromagnetic heating device to preheat the cracking tube to the target material reaction temperature, the preheating step of heating the cracking tube is further supplemented, and the accurate constant-temperature control of the temperature of the cracking tube is strongly supported.
In a specific embodiment, the cracking tube heating control device based on the electromagnetic induction principle provided by the invention further comprises:
The preheating correction module is used for introducing correction coefficients through calculation by the DCS distributed control system based on the pyrolysis tube temperatures acquired by the thermometers arranged at different positions of the pyrolysis tube; and based on the correction coefficient, the output power of the electromagnetic heating device is adjusted in real time, so that the temperature of the cracking tube is stabilized at the reaction temperature of the target material.
According to the cracking tube heating control device based on the electromagnetic induction principle, the preheating correction module is arranged, and the temperature of the cracking tube is stabilized at the target material reaction temperature by introducing the correction coefficient in the preheating step, so that the preheating step of heating the cracking tube is further refined, and the accurate constant-temperature control of the temperature of the cracking tube is strongly supported.
In a specific embodiment, the cracking tube heating control device based on the electromagnetic induction principle provided by the invention further comprises:
The induction coil confirmation module is used for calculating heating power according to the flow and the flow velocity of the target material and the residence time in the cracking tube at the maximum capacity and considering the system loss heat; and calculating the diameter and the number of turns of the induction coil according to the heating power and by combining the pipe diameter and the length of the cracking pipe.
According to the cracking tube heating control device based on the electromagnetic induction principle, the induction coil confirmation module is arranged, heating power is calculated by considering the system loss heat according to the flow and the flow velocity of the target material and the residence time in the cracking tube during maximum capacity, and then the diameter and the number of turns of the induction coil are calculated by combining the pipe diameter and the length of the cracking tube, so that the prepositive steps of heating control of the cracking tube are further enriched, and the accurate constant-temperature control of the temperature of the cracking tube is forcefully supported.
In a specific embodiment, the cracking tube heating control device based on the electromagnetic induction principle provided by the invention further comprises:
and the induction coil density adjusting module is used for adjusting the inter-turn density degree of the induction coil.
According to the cracking tube heating control device based on the electromagnetic induction principle, the induction coil density adjustment module is arranged, and the pre-step of cracking tube heating control is further refined by adjusting the inter-turn density degree of the induction coil, so that the accurate constant-temperature control of the temperature of the cracking tube is strongly supported.
Fig. 3 illustrates a physical schematic diagram of an electronic device, as shown in fig. 3, where the electronic device may include: processor 310, communication interface (Communications Interface) 320, memory 330 and communication bus 340, wherein processor 310, communication interface 320 and memory 330 communicate with each other via communication bus 340. The processor 310 may invoke logic instructions in the memory 330 to perform a method of pyrolysis tube heating control based on electromagnetic induction principles, the method comprising:
obtaining the flow and the flow velocity of a target material and the residence time in a cracking tube, thereby obtaining the heat absorbed by the material reaction;
determining an initial output power of the electromagnetic heating device based on the material reaction absorption heat and a predetermined system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
Based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
Further, the logic instructions in the memory 330 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In still another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the method for controlling heating of a pyrolysis tube based on the electromagnetic induction principle provided by the above methods, the method comprising:
obtaining the flow and the flow velocity of a target material and the residence time in a cracking tube, thereby obtaining the heat absorbed by the material reaction;
determining an initial output power of the electromagnetic heating device based on the material reaction absorption heat and a predetermined system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
Based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The cracking tube heating control method based on the electromagnetic induction principle is characterized by comprising the following steps of:
obtaining the flow and the flow velocity of a target material and the residence time in a cracking tube, thereby obtaining the heat absorbed by the material reaction;
determining an initial output power of the electromagnetic heating device based on the material reaction absorption heat and a predetermined system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
Based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the initial output power of the electromagnetic heating device is adjusted to be dynamic output power, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
2. The method for controlling heating of a pyrolysis tube based on the electromagnetic induction principle according to claim 1, further comprising:
Based on the pyrolysis tube temperature obtained by the thermometers arranged at different positions of the pyrolysis tube, PID integral control operation is carried out by the DCS distributed control system, and based on the PID integral control operation result, the opening of the feed valve is regulated in real time, so that the pyrolysis tube temperature is stabilized at the target material reaction temperature.
3. The method for controlling heating of a pyrolysis tube based on the electromagnetic induction principle according to claim 1, wherein the thermometers arranged at different positions of the pyrolysis tube at least comprise thermometers arranged at a feed inlet position, a middle position and a discharge outlet position of the pyrolysis tube.
4. The method for controlling heating of a pyrolysis tube based on the principle of electromagnetic induction according to claim 1, further comprising, before the obtaining of the flow rate, the flow velocity, and the residence time in the pyrolysis tube of the target material:
And a preheating step, wherein a starting signal is given by the DCS distributed control system to control the electromagnetic heating device to preheat the cracking tube to the target material reaction temperature.
5. The method for controlling heating of a pyrolysis tube based on the electromagnetic induction principle according to claim 4, further comprising:
Based on the temperature of the cracking tube obtained by the thermometers arranged at different positions of the cracking tube, introducing a correction coefficient by a DCS distributed control system through calculation;
and based on the correction coefficient, the output power of the electromagnetic heating device is adjusted in real time, so that the temperature of the cracking tube is stabilized at the reaction temperature of the target material.
6. The method for controlling heating of a pyrolysis tube based on the principle of electromagnetic induction according to claim 4, further comprising, before the preheating step:
calculating heating power according to the flow and the flow velocity of the target material and the residence time in the cracking tube at the maximum productivity and considering the system loss heat;
And calculating the diameter and the number of turns of the induction coil according to the heating power and by combining the pipe diameter and the length of the cracking pipe.
7. The method for controlling heating of a pyrolysis tube based on the electromagnetic induction principle according to claim 6, further comprising:
The inter-turn density degree of the induction coil is adjusted.
8. Pyrolysis tube heating control device based on electromagnetic induction principle, characterized by comprising:
The material reaction absorption heat calculation module is used for obtaining the flow rate and the flow velocity of the target material and the residence time in the cracking tube so as to obtain the material reaction absorption heat;
the initial output power determining module is used for determining the initial output power of the electromagnetic heating device based on the material reaction absorption heat and the preset system loss heat; the electromagnetic heating device is used for heating the cracking tube through the induction coil;
And the constant temperature control module is used for carrying out PID integral control operation by the DCS distributed control system based on the pyrolysis tube temperatures acquired by the thermometers arranged at different positions of the pyrolysis tube, and adjusting the initial output power of the electromagnetic heating device to be dynamic output power based on the PID integral control operation result so as to stabilize the pyrolysis tube temperature at the target material reaction temperature.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method for controlling heating of a pyrolysis tube based on the principle of electromagnetic induction according to any one of claims 1 to 7 when executing the program.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the method for controlling heating of a pyrolysis tube based on the principle of electromagnetic induction according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305478.6A CN117939714A (en) | 2022-10-24 | 2022-10-24 | Cracking tube heating control method and device based on electromagnetic induction principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305478.6A CN117939714A (en) | 2022-10-24 | 2022-10-24 | Cracking tube heating control method and device based on electromagnetic induction principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117939714A true CN117939714A (en) | 2024-04-26 |
Family
ID=90768915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211305478.6A Pending CN117939714A (en) | 2022-10-24 | 2022-10-24 | Cracking tube heating control method and device based on electromagnetic induction principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117939714A (en) |
-
2022
- 2022-10-24 CN CN202211305478.6A patent/CN117939714A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20150031286A (en) | Temperature controller for semiconductor manufacturing equipment, method for calculating pid constants in semiconductor manufacturing, and method for operating temperature controller for semiconductor manufacturing equipment | |
| CN108151253B (en) | Automatic compensation method for air supply temperature of variable air volume air conditioner | |
| CN108508870B (en) | Method for evaluating performance and optimizing parameters of boiler drum water level control system | |
| CN109581870A (en) | The temperature in the kettle dynamic matrix control method of energetic material reaction kettle | |
| CN110302728B (en) | Power correction intervention type temperature control method applied to calorimetric reaction kettle | |
| KR20040042874A (en) | Hybrid Cascade Model-Based Predictive Control System | |
| JP6345801B2 (en) | Temperature control method and temperature control device | |
| JP2012048533A (en) | Total energy suppression control device, total power suppression control device and method | |
| CN111596636A (en) | Polycrystalline silicon reduction furnace control method and device and electronic equipment | |
| CN102235755A (en) | Water temperature control method and device for water heater | |
| CN111397257B (en) | Temperature control device and method | |
| JP2000058466A (en) | Temperature control simulation method and device, and acquisition method of transmission function | |
| JP2006224040A (en) | Method and apparatus for controlling temperature of reactor | |
| CN117939714A (en) | Cracking tube heating control method and device based on electromagnetic induction principle | |
| JP2015087781A (en) | Control method and control device | |
| JP2004193219A (en) | Heat treatment apparatus and temperature control method therefor | |
| CN110133348B (en) | Method and system for compensating self-heating error of electric energy meter and storage medium | |
| JP2009046345A (en) | Ozone generating device | |
| CN115863223B (en) | Process temperature control method and device for wafer rapid thermal processing process | |
| CN109964180B (en) | Device and method for determining parameters of a control device | |
| CN111998423A (en) | Electric heat storage circulating air quantity-water temperature control system and prediction control method thereof | |
| JP6017265B2 (en) | Control method and control apparatus | |
| JP5975427B2 (en) | Hot water supply device and hot water storage type hot water supply system provided with the same | |
| CN112781430B (en) | Method for controlling heat exchanger, storage medium and electronic device | |
| CN104976602A (en) | Steam-heater controlling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |