Intelligent operation system and method of electric heating pipeline and industrial fluid conveying pipe network
The intelligent temperature regulation of the electric heating pipeline system solves the problems of low efficiency and safety in traditional pipeline medium transportation, and achieves safe and economical temperature control and energy efficiency optimization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHI TECH (NINGBO) CO LTD
- Filing Date
- 2026-01-26
- Publication Date
- 2026-05-12
AI Technical Summary
When traditional pipelines transport media, the heating efficiency of steam or hot water is low, resulting in energy waste. Uneven temperature can cause pipeline damage, leading to high maintenance costs and the risk of burns. The construction period is also long and the flexibility is poor.
An electric heating pipeline system is adopted, which integrates an electric heating unit, a distributed temperature monitoring unit, a pipeline thermal management controller, and a power distribution module to achieve intelligent temperature regulation. It sets temperature thresholds according to the properties of the medium and process requirements, dynamically adjusts the heating power, and optimizes energy consumption by combining flow rate and environmental data.
It enables safe and economical temperature control of the medium inside the pipeline in complex environments, preventing condensation or overheating, optimizing energy efficiency, reducing maintenance costs, and improving flexibility.
Smart Images
Figure CN122015178A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pipeline heating technology, and more particularly to an intelligent operating system and method for electric heating pipelines and an industrial fluid transport network. Background Technology
[0002] Traditional pipelines are generally used to transport liquid media. Traditional underfloor heating pipes rely on steam or hot water for heat tracing. However, steam or hot water tracing depends on boilers, resulting in significant heat loss during transport and energy utilization rates often below 30%, leading to serious waste. For energy pipelines using petroleum or other energy-based media, uneven heating can cause damage, leading to leaks and environmental pollution. High-temperature pipelines pose a risk of burns and have high maintenance costs, while low-temperature pipelines can cause petroleum to condense or freeze, blocking the pipelines. Furthermore, maintaining the pipeline temperature requires boilers and external circulation piping, resulting in long construction periods and poor flexibility. Summary of the Invention
[0003] This invention provides an intelligent operation system and method for electrically heated pipelines and an industrial fluid transport network to solve one or more technical problems encountered in the prior art.
[0004] In a first aspect, embodiments of the present invention provide an intelligent operating system for an electrically heated pipeline, comprising: Pipelines are used to transport target media; An electric heating unit, which is integrated inside the pipe wall or attached to the outer or inner wall of the pipe body, is used to heat the pipe and / or its internal medium; Distributed temperature monitoring units are arranged at intervals along the length of the pipe body to collect real-time data on the temperature of the outer wall of the pipe and / or the temperature of the medium inside the pipe. A power and communication interface for connecting to at least one of an external power supply network, a backup generator, and an energy storage device; the power and communication interface is used to provide a power and data communication link. The pipeline thermal management controller is communicatively connected to the distributed temperature monitoring unit and is used to receive and process temperature data; The power distribution and switching execution module is connected to the pipeline thermal management controller and is electrically connected to the power supply and communication interface and the electric heating unit, respectively. The pipeline thermal management controller is used to set the target temperature range to be maintained in the pipeline according to the physical properties and process requirements of the target medium. The target temperature range includes a first temperature threshold that is lower limit for preventing condensation or maintaining fluidity and a second temperature threshold that is upper limit for preventing the medium from overheating or wasting energy. The pipeline thermal management controller is used to compare the real-time temperature collected by the distributed temperature monitoring unit with the first temperature threshold and the second temperature threshold. When the real-time temperature at any monitoring point is lower than the first temperature threshold, the pipeline thermal management controller generates a heating command for the corresponding pipe section or the whole system, and the power distribution and switch execution module receives the heating command to start or enhance the power output of the electric heating unit. When the real-time temperature at any monitoring point is higher than the second temperature threshold, the pipeline thermal management controller is used to generate a power reduction or heating stop command for the corresponding pipe section or the whole system, and the power distribution and switch execution module is used to receive the power reduction or heating stop command to reduce or cut off the power output of the electric heating unit. When the temperature is between the first temperature threshold and the second temperature threshold, the pipeline thermal management controller generates a heat preservation command, and the power distribution and switching execution module receives the heat preservation command to control the electric heating unit to maintain power operation.
[0005] In a preferred embodiment, the electric heating unit is a heating tape, heating wire layer or heating film that is independently set and controlled in segments along the length of the pipe, and each segment is connected to the corresponding switch submodule in the power distribution and switch execution module. The pipeline thermal management controller is used to independently control the start-up, shutdown, and heating power of each segment electric heating unit based on the segment temperature data fed back by the distributed temperature monitoring unit.
[0006] In a preferred embodiment, a flow detection unit is also included, which is communicatively connected to the pipeline thermal management controller. The flow detection unit is disposed on the pipeline and is used to detect the real-time flow rate or flow of the medium. The pipeline thermal management controller is used to dynamically calculate the theoretical heat load required to maintain the target temperature of the pipeline based on the medium flow rate or flow rate, specific heat capacity and inlet temperature detected by the flow detection unit, and correct the power control command of the electric heating unit accordingly. When the flow rate is high, the heating power compensation is increased adaptively, and the power is reduced or switched to anti-condensation mode when the flow is stagnant or interrupted.
[0007] In a preferred embodiment, an ambient temperature sensor is also included, which is disposed in the external environment of the pipeline and is communicatively connected to the pipeline thermal management controller. The pipeline thermal management controller is used to combine ambient temperature data and pipeline insulation thermal resistance parameters to evaluate the natural heat dissipation rate of the pipeline, and predictively adjust the heating strategy accordingly, raising the pipeline temperature in advance before the ambient temperature drops sharply, or reducing the heating power in advance when the ambient temperature rises.
[0008] In a preferred embodiment, the pipeline thermal management controller stores pipeline insulation structure information; The controller is used to calculate heating power by comprehensively considering the real-time medium temperature, target temperature, ambient temperature, and heat loss coefficient of the insulation structure, and to achieve closed-loop feedback and feedforward composite control based on the thermal balance model, so as to minimize the total energy consumption of the system.
[0009] In a preferred embodiment, the pipeline thermal management controller is set with multiple temperature thresholds, including a first temperature threshold for initiating normal heating, a lower emergency threshold for triggering enhanced heating, a second temperature threshold for switching to heat preservation mode, and a higher safety threshold for triggering an over-temperature alarm. The controller executes control and alarm strategies with different priorities and intensities based on different thresholds that are triggered.
[0010] In a preferred embodiment, the pipeline thermal management controller is further configured to execute a preheating procedure before system startup or resumption of media delivery. The preheating procedure includes calculating the energy and time required for preheating based on the initial temperature, target temperature, and pipeline heat capacity, and controlling the electric heating unit to uniformly heat the pipeline at a safe rate to the process-permitted start-up temperature range.
[0011] In a preferred embodiment, the system further includes an equipment status monitoring and communication module, which is used to monitor the current, insulation resistance, grounding status of each segment of the electric heating unit and the contact status of the switch execution module. The pipeline thermal management controller is used to diagnose abnormal conditions and report fault location information, energy consumption data and operating status to the remote monitoring center through the power and communication interface.
[0012] Secondly, embodiments of the present invention provide a method for intelligent operation of an electric heating pipeline, comprising the following steps: S1: Based on the characteristics of the conveying medium and process requirements, the target temperature is set in the controller to be maintained within a safe threshold between the first temperature threshold and the second temperature threshold; S2: Temperature data is continuously collected through distributed temperature sensors along the pipeline, and relevant parameters are collected through flow meters and ambient temperature sensors; S3: The controller integrates all input parameters to determine whether heating is required and the required heat load; S4: If heating is required, start or stop the electric heating unit of the corresponding pipe section according to the location of the temperature anomaly point, and dynamically adjust the heating power based on the heat balance model. S5: During the heating process, continuously monitor the temperature change trend and equipment electrical parameters to achieve closed-loop control; S6: When the temperature stabilizes within the target range, adjust the heating power to a maintenance level that matches the current heat loss; if overheating or a fault occurs, perform power reduction, shutdown, or alarm operation.
[0013] Thirdly, embodiments of the present invention provide an industrial fluid transport network, including an intelligent operating system for electrically heated pipelines. The transport network is used to ensure that the medium inside the pipeline is always in a safe and economical temperature range under complex environments and changing operating conditions, to prevent condensation, freezing or overheating, and to optimize operating energy efficiency.
[0014] One of the above technical solutions has the following advantages or beneficial effects: the intelligent operation system is used to ensure that the medium inside the pipeline is regulated in complex environments and under changing working conditions, so that the pipeline temperature is always in a safe and economical temperature range, preventing the internal medium from condensing, freezing or overheating, and optimizing the energy efficiency of pipeline operation.
[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0016] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in the invention and should not be construed as limiting the scope of the invention.
[0017] Figure 1 This is a simplified diagram of the overall structure and connection of the intelligent operation system of the electric heating pipeline in this embodiment. Detailed Implementation
[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0019] In a first aspect, embodiments of the present invention provide an intelligent operating system for an electrically heated pipeline, see [link to relevant documentation]. Figure 1 As shown, the intelligent operation system of the electric heating pipeline includes a pipeline 100, an electric heating unit 200, a distributed temperature monitoring unit 300, a power supply and communication interface 400, a pipeline thermal management controller 500, and a power distribution and switching execution module 600.
[0020] Pipeline 100 is used to transport the target medium.
[0021] The electric heating unit 200 is integrated inside the pipe wall 100 or attached to the outer or inner wall of the pipe 100 body. The electric heating unit 200 is used to heat the pipe 100 and / or its internal medium.
[0022] Distributed temperature monitoring units 300 are arranged at intervals along the length of the pipe 100 body. The distributed temperature monitoring units 300 are used to collect real-time data of the temperature of the outer wall of the pipe 100 and / or the temperature of the medium inside the pipe.
[0023] The power and communication interface 400 is connected to at least one of an external power supply network, a backup generator, and an energy storage device. The power and communication interface 400 is used to provide power and data communication links.
[0024] The pipeline thermal management controller 500 is communicatively connected to the distributed temperature monitoring unit 300, and the pipeline thermal management controller 500 is used to receive and process temperature data.
[0025] The power distribution and switching execution module 600 is connected to the pipeline thermal management controller 500, and is electrically connected to the power supply and communication interface 400 and the electric heating unit 200, respectively.
[0026] The pipeline thermal management controller 500 is used to set the target temperature range to be maintained in the pipeline according to the physical properties and process requirements of the target medium. The target temperature range includes a first temperature threshold that is lower limit for preventing condensation or maintaining fluidity and a second temperature threshold that is upper limit for preventing the medium from overheating or wasting energy. The pipeline thermal management controller 500 is used to compare the real-time temperature collected by the distributed temperature monitoring unit 300 with the first temperature threshold and the second temperature threshold. When the real-time temperature at any monitoring point is lower than the first temperature threshold, the pipeline thermal management controller 500 generates a heating command for the corresponding pipe section or the whole system, and the power distribution and switch execution module 600 receives the heating command to start or enhance the power output of the electric heating unit 200. When the real-time temperature at any monitoring point is higher than the second temperature threshold, the pipeline thermal management controller 500 generates a power reduction or heating stop command for the corresponding pipe section or the whole system, and the power distribution and switch execution module 600 receives the power reduction or heating stop command to reduce or cut off the power output of the electric heating unit 200. When the temperature is between the first temperature threshold and the second temperature threshold, the pipeline thermal management controller 500 generates a heat preservation command, and the power distribution and switching execution module 600 receives the heat preservation command and controls the electric heating unit 200 to maintain power operation.
[0027] The intelligent operation system in this embodiment is used to ensure that the temperature of the medium inside the pipeline is regulated under complex environments and changing operating conditions, so that the pipeline temperature is always within a safe and economical temperature range, preventing the internal medium from condensing, freezing or overheating, and optimizing the energy efficiency of pipeline operation.
[0028] In one specific embodiment, the electric heating unit 200 is a heating tape, heating wire layer or heating film that is independently set and controlled in segments along the length of the pipe 100, and each segment is connected to the corresponding switch submodule in the power distribution and switch execution module 600.
[0029] The pipeline thermal management controller 500 is used to independently control the start-up, shutdown, and heating power of each segment electric heating unit 200 based on the segment temperature data fed back by the distributed temperature monitoring unit 300.
[0030] In one specific embodiment, see Figure 1 As shown, the system also includes a flow detection unit 700, which is communicatively connected to the pipeline thermal management controller 500. The flow detection unit 700 is installed on the pipeline 100 and is used to detect the real-time flow rate or flow of the medium.
[0031] The pipeline thermal management controller 500 is used to dynamically calculate the theoretical heat load required to maintain the target temperature of the pipeline based on the medium flow rate or flow, specific heat capacity and inlet temperature detected by the flow detection unit 700, and to correct the power control command of the electric heating unit 200 accordingly. When the flow rate is high, the heating power compensation is adaptively increased, and the power is reduced or switched to anti-condensation mode when the flow is stagnant or interrupted.
[0032] In one specific embodiment, see Figure 1 As shown, the system also includes an ambient temperature sensor 800, which is located in the external environment of the pipe 100 and is communicatively connected to the pipe thermal management controller 500.
[0033] The pipeline thermal management controller 500 is used to combine ambient temperature data and pipeline insulation thermal resistance parameters to evaluate the natural heat dissipation rate of the pipeline 100, and predictively adjust the heating strategy accordingly, raising the pipeline temperature in advance before the ambient temperature drops sharply, or reducing the heating power in advance when the ambient temperature rises.
[0034] In one specific embodiment, the pipeline thermal management controller 500 stores pipeline insulation structure information; the pipeline thermal management controller 500 is used to calculate heating power by comprehensively considering real-time medium temperature, target temperature, ambient temperature and insulation structure heat loss coefficient, to realize closed-loop feedback and feedforward composite control based on thermal balance model, so as to minimize the total energy consumption of the system.
[0035] In one specific embodiment, the pipeline thermal management controller 500 is configured with multiple temperature thresholds, including a first temperature threshold for initiating normal heating, a lower emergency threshold for triggering enhanced heating, a second temperature threshold for switching to heat preservation mode, and a higher safety threshold for triggering an over-temperature alarm; the controller executes control and alarm strategies with different priorities and intensities according to the different thresholds that are triggered.
[0036] In one specific embodiment, the pipeline thermal management controller 500 is further configured to execute a preheating procedure before system startup or media resumption. The preheating procedure includes calculating the energy and time required for preheating based on the initial temperature, target temperature, and pipeline heat capacity, and controlling the electric heating unit 200 to uniformly heat the pipeline 100 to the process-permitted startup temperature range at a safe rate.
[0037] In one specific embodiment, the system further includes a device status monitoring and communication module, which is used to monitor the current, insulation resistance, grounding status of each segment of the electric heating unit and the contact status of the switch execution module. The pipeline thermal management controller is used to diagnose abnormal conditions and report fault location information, energy consumption data and operating status to the remote monitoring center through the power and communication interface.
[0038] Secondly, embodiments of the present invention provide a method for intelligent operation of an electric heating pipeline, comprising the following steps: S1: Based on the characteristics of the conveying medium and process requirements, the target temperature is set in the controller to be maintained within a safe threshold between the first temperature threshold and the second temperature threshold; S2: Temperature data is continuously collected through distributed temperature sensors along the pipeline, and relevant parameters are collected through flow meters and ambient temperature sensors; S3: The controller integrates all input parameters to determine whether heating is required and the required heat load; S4: If heating is required, start or stop the electric heating unit of the corresponding pipe section according to the location of the temperature anomaly point, and dynamically adjust the heating power based on the heat balance model. S5: During the heating process, continuously monitor the temperature change trend and equipment electrical parameters to achieve closed-loop control; S6: When the temperature stabilizes within the target range, adjust the heating power to a maintenance level that matches the current heat loss; if overheating or a fault occurs, perform power reduction, shutdown, or alarm operation.
[0039] Thirdly, embodiments of the present invention provide an industrial fluid transport network, including an intelligent operating system for electrically heated pipelines. The transport network is used to ensure that the medium inside the pipeline is always in a safe and economical temperature range under complex environments and changing operating conditions, to prevent condensation, freezing or overheating, and to optimize operating energy efficiency.
[0040] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0042] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. An intelligent operation system for an electrically heated pipeline, characterized in that, include: Pipelines are used to transport target media; An electric heating unit, which is integrated inside the pipe wall or attached to the outer or inner wall of the pipe body, is used to heat the pipe and / or its internal medium; Distributed temperature monitoring units are arranged at intervals along the length of the pipe body to collect real-time data on the temperature of the outer wall of the pipe and / or the temperature of the medium inside the pipe. A power and communication interface for connecting to at least one of an external power supply network, a backup generator, and an energy storage device; the power and communication interface is used to provide a power and data communication link. The pipeline thermal management controller is communicatively connected to the distributed temperature monitoring unit and is used to receive and process temperature data; The power distribution and switching execution module is connected to the pipeline thermal management controller and is electrically connected to the power supply and communication interface and the electric heating unit, respectively. The pipeline thermal management controller is used to set the target temperature range to be maintained in the pipeline according to the physical properties and process requirements of the target medium. The target temperature range includes a first temperature threshold that is lower limit for preventing condensation or maintaining fluidity and a second temperature threshold that is upper limit for preventing the medium from overheating or wasting energy. The pipeline thermal management controller is used to compare the real-time temperature collected by the distributed temperature monitoring unit with the first temperature threshold and the second temperature threshold. When the real-time temperature at any monitoring point is lower than the first temperature threshold, the pipeline thermal management controller generates a heating command for the corresponding pipe section or the whole system, and the power distribution and switch execution module receives the heating command to start or enhance the power output of the electric heating unit. When the real-time temperature at any monitoring point is higher than the second temperature threshold, the pipeline thermal management controller is used to generate a power reduction or heating stop command for the corresponding pipe section or the whole system, and the power distribution and switch execution module is used to receive the power reduction or heating stop command to reduce or cut off the power output of the electric heating unit. When the temperature is between the first temperature threshold and the second temperature threshold, the pipeline thermal management controller generates a heat preservation command, and the power distribution and switching execution module receives the heat preservation command to control the electric heating unit to maintain power operation.
2. The intelligent operation system for electric heating pipelines according to claim 1, characterized in that: The electric heating unit is a heating tape, heating wire layer or heating film that is independently set and controlled in sections along the length of the pipe, and each section is connected to the corresponding switch submodule in the power distribution and switch execution module. The pipeline thermal management controller is used to independently control the start-up, shutdown, and heating power of each segment electric heating unit based on the segment temperature data fed back by the distributed temperature monitoring unit.
3. The intelligent operation system for electric heating pipelines according to claim 1, characterized in that, It also includes a flow detection unit, which is communicatively connected to the pipeline thermal management controller. The flow detection unit is installed on the pipeline and is used to detect the real-time flow rate or flow of the medium. The pipeline thermal management controller is used to dynamically calculate the theoretical heat load required to maintain the target temperature of the pipeline based on the medium flow rate or flow rate, specific heat capacity and inlet temperature detected by the flow detection unit, and correct the power control command of the electric heating unit accordingly. When the flow rate is high, the heating power compensation is increased adaptively, and the power is reduced or switched to anti-condensation mode when the flow is stagnant or interrupted.
4. The intelligent operation system for electric heating pipelines according to claim 1, characterized in that, It also includes an ambient temperature sensor, which is placed in the external environment of the pipeline and is communicatively connected to the pipeline thermal management controller. The pipeline thermal management controller is used to combine ambient temperature data and pipeline insulation thermal resistance parameters to evaluate the natural heat dissipation rate of the pipeline, and predictively adjust the heating strategy accordingly, raising the pipeline temperature in advance before the ambient temperature drops sharply, or reducing the heating power in advance when the ambient temperature rises.
5. The intelligent operation system for electric heating pipelines according to claim 1 or 4, characterized in that: The pipeline thermal management controller stores information about the pipeline insulation structure. The controller is used to calculate heating power by comprehensively considering the real-time medium temperature, target temperature, ambient temperature, and heat loss coefficient of the insulation structure, and to achieve closed-loop feedback and feedforward composite control based on the thermal balance model, so as to minimize the total energy consumption of the system.
6. The intelligent operation system for electric heating pipelines according to claim 1, characterized in that: The pipeline thermal management controller is set with multiple temperature thresholds, including a first temperature threshold for starting regular heating, a lower emergency threshold for triggering enhanced heating, a second temperature threshold for switching to heat preservation mode, and a higher safety threshold for triggering over-temperature alarm. The controller executes control and alarm strategies with different priorities and intensities based on different thresholds that are triggered.
7. The intelligent operation system for electric heating pipelines according to claim 1, characterized in that: The pipeline thermal management controller is also used to execute a preheating procedure before system startup or medium resumption. The preheating procedure includes calculating the energy and time required for preheating based on the initial temperature, target temperature and pipeline heat capacity, and controlling the electric heating unit to uniformly heat the pipeline to the process-allowed start-up temperature range at a safe rate.
8. The intelligent operation system for electric heating pipelines according to claim 1, characterized in that: The system also includes an equipment status monitoring and communication module, which is used to monitor the current, insulation resistance, grounding status of each segment of the electric heating unit and the contact status of the switch execution module. The pipeline thermal management controller is used to diagnose abnormal conditions and report fault location information, energy consumption data and operating status to the remote monitoring center through the power and communication interface.
9. A method for intelligent operation of an electric heating pipeline applied to a system according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Based on the characteristics of the conveying medium and process requirements, the target temperature is set in the controller to be maintained within a safe threshold between the first temperature threshold and the second temperature threshold; S2: Temperature data is continuously collected through distributed temperature sensors along the pipeline, and relevant parameters are collected through flow meters and ambient temperature sensors; S3: The controller integrates all input parameters to determine whether heating is required and the required heat load; S4: If heating is required, start or stop the electric heating unit of the corresponding pipe section according to the location of the temperature anomaly point, and dynamically adjust the heating power based on the heat balance model. S5: During the heating process, continuously monitor the temperature change trend and equipment electrical parameters to achieve closed-loop control; S6: When the temperature stabilizes within the target range, adjust the heating power to a maintenance level that matches the current heat loss; if overheating or a fault occurs, perform power reduction, shutdown, or alarm operation.
10. An industrial fluid transport pipeline network, characterized in that, An intelligent operating system comprising an electrically heated pipeline as described in any one of claims 1-8, wherein the pipeline network is used to ensure that the medium inside the pipeline is always in a safe and economical temperature range under complex environments and changing operating conditions, to prevent condensation, freezing or overheating, and to optimize operating energy efficiency.