Pipeline detection and protection method and system for heat supply system

Abstract

The invention provides a pipeline detection and protection method and system of a heat supply system. Comprising the following steps: carrying out heat loss stepped segmentation on each section of a pipeline of a heat supply system, arranging a pipeline total cross-section temperature sensing group, and detecting the temperature of the pipeline heat stepped segmentation; the pipeline heat stepped section temperature is compared with the normal heat supply temperature of the pipeline, and the pipeline heat stepped section temperature difference is obtained; according to the pipeline heat stepped segment temperature and the pipeline heat stepped segment temperature difference, phase change energy storage temperature compensation is controlled through the phase change energy storage temperature compensation layer; the environment temperature outside a pipeline of the heat supply system is detected; calculating a pipeline temperature difference abnormal thermal unbalance section; according to the environment temperature outside the pipeline, auxiliary heat insulation protection outside the pipeline is conducted through the outer auxiliary heat insulation protection device; and through the segmented alarm device, pipeline temperature difference abnormal thermal unbalance section alarm and pipeline protection abnormal alarm are carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of precise detection and protection of thermal supply energy utilization, and more specifically, to a pipeline detection and protection method and system for a thermal supply system. Background Art

[0002] At present, with the development of energy technology and the improvement of technical requirements, the technical requirements for intelligent heat supply and energy utilization efficiency are getting higher and higher; specific problems include: how to perform comprehensive temperature detection on each section of the pipeline of the heat supply system, how to obtain more accurate temperature difference between each section of the pipeline and the normal heating temperature of the pipeline, how to reuse the temperature difference of pipeline heat segments and the temperature of the environment outside the pipeline and store energy for heating, how to monitor abnormal temperature difference of the pipeline, how to perform auxiliary thermal insulation protection and pipeline abnormal alarm, etc., which have yet to be solved; therefore, it is necessary to propose a pipeline detection and protection method and system for a heat supply system to at least partially solve the problems existing in the prior art. Summary of the invention

[0003] A series of simplified concepts are introduced in the content of the invention, which will be further described in detail in the specific implementation method section; the content of the invention of the present invention does not mean to attempt to limit the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the present invention provides a pipeline detection and protection method for a heat supply system, comprising: S100, heat loss is divided into different sections of the pipeline of the heat supply system and a temperature sensing group for the entire section of the pipeline is set to detect the temperature of the pipeline heat step section; S200, comparing the pipeline heat ladder segment temperature with the pipeline normal heating temperature to obtain the pipeline heat ladder segment temperature difference; S300, according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference, the phase change energy storage temperature compensation layer is used to control the phase change energy storage temperature compensation layer; the external environment temperature of the pipeline of the heat supply system is detected; S400, calculating the abnormal thermal imbalance section of the pipeline temperature difference; performing external auxiliary thermal insulation protection on the pipeline through an external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; and performing an abnormal thermal imbalance section alarm of the pipeline temperature difference and an abnormal pipeline protection alarm through a segmented alarm device.

[0005] Preferably, S100 includes: S101, for each section of the pipeline of the heat supply system, heat loss is divided into stages according to the heat loss statistical data of the pipeline, and the heat loss stage segmentation of the pipeline is obtained; S102, according to the pipeline heat loss step segmentation, the pipeline full-section temperature sensing groups are distributed between each pipeline heat loss step segment to detect the pipeline heat step segment temperature; the thermal management data transmission unit quickly reports the pipeline heat step segment temperature data that does not meet the normal heating temperature to the thermal supply system data management center.

[0006] Preferably, S200 includes: S201, according to the normal heating temperature information of the heat supply, setting the normal heating temperature of the pipes of the heat supply system and the required temperature difference range of the heating; S202, comparing the pipeline heat step segment temperature with the pipeline normal heating temperature to obtain the pipeline heat step segment temperature difference.

[0007] Preferably, S300 includes: S301, a phase change energy storage temperature compensation layer is arranged outside the pipeline, and the phase change energy storage temperature compensation is controlled through the phase change energy storage temperature compensation layer according to the pipeline thermal step temperature and the pipeline thermal step temperature difference; S302, detecting the external ambient temperature of the pipeline of the heat supply system by means of an external temperature sensor of the pipeline; According to the pipeline heat step temperature and the pipeline heat step temperature difference, the phase change energy storage temperature compensation is controlled by the phase change energy storage temperature compensation layer, including: according to the pipeline cross-section heating temperature difference, when the pipeline cross-section heating temperature difference is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross-section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross-section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the phase change energy storage temperature compensation heat balance heat is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation is performed for efficient heat balance heating.

[0008] Preferably, S400 includes: S401, the temperature difference abnormal heat imbalance analysis unit, sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segment temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the pipeline temperature difference abnormal heat imbalance section; The external auxiliary heat insulation protection unit performs external auxiliary heat insulation protection on the pipeline through the external auxiliary heat insulation protection device according to the external ambient temperature of the pipeline; The thermal imbalance segmented alarm unit, according to the abnormal thermal imbalance segment of the pipeline temperature difference, uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm and an abnormal pipeline protection alarm.

[0009] The present invention provides a pipeline detection and protection system for a heat supply system, comprising: The segmented temperature sensing full-section detection module divides the heat loss of each section of the pipeline of the heat supply system into sections and sets up a full-section temperature sensing group of the pipeline to detect the temperature of the pipeline heat ladder section; The heat step segment temperature comparison module compares the heat step segment temperature of the pipeline with the normal heating temperature of the pipeline to obtain the heat step segment temperature difference of the pipeline; The phase change energy storage temperature compensation heat balance module controls the phase change energy storage temperature compensation through the phase change energy storage temperature compensation layer according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference; detects the external environment temperature of the pipeline of the heat supply system; The thermal imbalance protection segmented alarm module calculates the abnormal thermal imbalance segment of the pipeline temperature difference; performs external auxiliary thermal insulation protection on the pipeline through the external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; and uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm for the pipeline temperature difference and an abnormal pipeline protection alarm.

[0010] Preferably, the segmented temperature sensing full-section detection module includes: The pipeline segment temperature sensor layout unit divides the heat loss of each section of the pipeline of the heat supply system into different stages according to the heat loss statistics of the pipeline, and obtains the heat loss stage segmentation of the pipeline; The pipeline cross-section segmentation detection unit sets up pipeline full-section temperature sensing groups between each pipeline heat loss step segment according to the pipeline heat loss step segmentation to detect the pipeline heat step segment temperature; the thermal management data transmission unit quickly reports the pipeline heat step segment temperature data that does not meet the normal heating temperature to the thermal supply system data management center.

[0011] Preferably, the thermal step-by-step temperature comparison module includes: The heat supply temperature setting unit sets the normal heating temperature of the pipes of the heat supply system and the required temperature difference range of heating according to the normal heating temperature information of the heat supply; The heat loss segment comparison unit compares the pipeline heat step segment temperature with the pipeline normal heating temperature to obtain the pipeline heat step segment temperature difference.

[0012] Preferably, the phase change energy storage temperature compensation heat balance module includes: The phase-change energy storage temperature compensation unit sets a phase-change energy storage temperature compensation layer outside the pipeline, and controls the phase-change energy storage temperature compensation through the phase-change energy storage temperature compensation layer according to the pipeline thermal step temperature and the pipeline thermal step temperature difference; The pipeline environment temperature detection unit detects the external environment temperature of the pipeline of the heat supply system through the pipeline external temperature sensor; According to the pipeline heat step temperature and the pipeline heat step temperature difference, the phase change energy storage temperature compensation is controlled by the phase change energy storage temperature compensation layer, including: according to the pipeline cross-section heating temperature difference, when the pipeline cross-section heating temperature difference is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross-section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross-section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the phase change energy storage temperature compensation heat balance heat is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation is performed for efficient heat balance heating.

[0013] Preferably, the thermal imbalance protection segmented alarm module comprises: The temperature difference abnormal heat imbalance analysis unit sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segment temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the pipeline temperature difference abnormal heat imbalance section; The external auxiliary heat insulation protection unit performs external auxiliary heat insulation protection on the pipeline through the external auxiliary heat insulation protection device according to the external ambient temperature of the pipeline; The thermal imbalance segmented alarm unit, according to the abnormal thermal imbalance segment of the pipeline temperature difference, uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm and an abnormal pipeline protection alarm.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention discloses a pipeline detection and protection method and system for a heat supply system. The method divides each section of the pipeline of the heat supply system into heat loss step sections and sets a temperature sensing group for the entire cross section of the pipeline to detect the temperature of the pipeline heat step sections; compares the pipeline heat step section temperature with the normal heating temperature of the pipeline to obtain the pipeline heat step section temperature difference; controls the phase change energy storage temperature compensation layer according to the pipeline heat step section temperature and the pipeline heat step section temperature difference; detects the external environment temperature of the pipeline of the heat supply system; calculates the abnormal thermal imbalance section of the pipeline temperature difference; and detects the external environment temperature of the pipeline according to the external environment temperature of the pipeline through the phase change energy storage temperature compensation layer. External auxiliary thermal insulation protection device is used to perform auxiliary thermal insulation protection on the outside of the pipeline; and through the segmented alarm device, it can perform abnormal temperature difference, thermal imbalance segment alarm and pipeline protection abnormality alarm; it can promote the development of energy technology, intelligent heat supply and significantly improve energy utilization efficiency; it can perform comprehensive temperature detection on each section of the pipeline in the heat supply system; it can obtain more accurate temperature difference between each section of the pipeline and the normal heating temperature of the pipeline; it can reuse the segmented temperature difference of the pipeline heat and the ambient temperature outside the pipeline and store energy for heating; it can monitor abnormal temperature difference of the pipeline, perform auxiliary thermal insulation protection of the pipeline and alarm of pipeline abnormality.

[0015] The pipeline detection and protection method and system of a heat supply system described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a diagram showing an embodiment of a pipeline detection and protection method for a heat supply system according to the present invention.

[0017] Figure 2 This is a diagram of an embodiment of a pipeline detection and protection system for a heat supply system described in the present invention.

[0018] Figure 3 This is another embodiment diagram of a pipeline detection and protection system for a heat supply system described in the present invention. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the instructions. As shown in the drawings, the present invention provides a pipeline detection and protection method for a heat supply system, comprising: S100, heat loss is divided into different sections of the pipeline of the heat supply system and a temperature sensing group for the entire section of the pipeline is set to detect the temperature of the pipeline heat step section; S200, comparing the pipeline heat ladder segment temperature with the pipeline normal heating temperature to obtain the pipeline heat ladder segment temperature difference; S300, according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference, the phase change energy storage temperature compensation layer is used to control the phase change energy storage temperature compensation layer; the external environment temperature of the pipeline of the heat supply system is detected; S400, calculating the abnormal thermal imbalance section of the pipeline temperature difference; performing external auxiliary thermal insulation protection on the pipeline through an external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; and performing an abnormal thermal imbalance section alarm of the pipeline temperature difference and an abnormal pipeline protection alarm through a segmented alarm device.

[0020] The principle and effect of the above technical solution are as follows: the present invention provides a pipeline detection and protection method for a heat supply system, comprising: dividing each section of the pipeline of the heat supply system into heat loss steps and setting a temperature sensing group for the entire cross section of the pipeline to detect the temperature of the pipeline heat step section; comparing the pipeline heat step section temperature with the normal heating temperature of the pipeline to obtain the pipeline heat step section temperature difference; controlling the phase change energy storage temperature compensation layer according to the pipeline heat step section temperature and the pipeline heat step section temperature difference; detecting the external environment temperature of the pipeline of the heat supply system; calculating the abnormal thermal imbalance section of the pipeline temperature difference; and determining the temperature of the pipeline according to the pipeline heat step section temperature. The external ambient temperature of the pipeline can be measured by external auxiliary thermal insulation protection device, and the abnormal temperature difference of the pipeline can be alarmed by the thermal imbalance section and abnormal pipeline protection through the segmented alarm device. It can improve the development of energy technology, intelligent heat supply and significantly improve energy utilization efficiency. It can conduct comprehensive temperature detection on each section of the pipeline in the heat supply system. It can obtain more accurate temperature difference between each section of the pipeline and the normal heating temperature of the pipeline. It can reuse the segmented temperature difference of the pipeline heat and the ambient temperature outside the pipeline and store energy for heating. It can monitor abnormal temperature difference of the pipeline, perform auxiliary thermal insulation protection of the pipeline and alarm of pipeline abnormality.

[0021] In one embodiment, S100 includes: S101, for each section of the pipeline of the heat supply system, heat loss is divided into stages according to the heat loss statistical data of the pipeline, and the heat loss stage segmentation of the pipeline is obtained; S102, according to the pipeline heat loss step segmentation, the pipeline full-section temperature sensing groups are distributed between each pipeline heat loss step segment to detect the pipeline heat step segment temperature; the thermal management data transmission unit quickly reports the pipeline heat step segment temperature data that does not meet the normal heating temperature to the thermal supply system data management center.

[0022] The principle and effect of the above technical solution are as follows: for each section of the pipeline of the heat supply system, heat loss is segmented according to the statistical data of pipeline heat loss, and the pipeline heat loss step segmentation is obtained; heat loss is segmented according to the statistical data of pipeline heat loss, and the pipeline heat loss step segmentation is obtained, including: according to the statistical data of pipeline heat loss, the temperature drop between the heat source end pipeline and the heating end pipeline is extracted, and the temperature drop is divided into cooling steps, and the heat loss steps are calculated according to the cooling steps according to the diameter of the heating pipeline and the heating flow rate; according to the heat loss steps corresponding to the pipeline The length is divided into steps to obtain the step-by-step heat loss segmentation of the pipeline; according to the step-by-step heat loss segmentation of the pipeline, the full-section temperature sensing group of the pipeline is distributed between each step-by-step heat loss segment of the pipeline to detect the temperature of the step-by-step heat segment of the pipeline; the thermal management data transmission unit quickly reports the temperature data of the step-by-step heat segment of the pipeline that does not meet the normal heating temperature to the data management center of the thermal supply system; the full-section temperature sensing group of the pipeline includes: a temperature sensing probe unit 11 in the center of the pipeline, a temperature sensing probe unit 12 in the middle layer of the pipeline, a temperature sensing probe unit 13 at the edge of the pipeline, and a temperature calculation unit 14 for the full section of the pipeline; The pipeline center temperature sensing probe unit is set at the center point of the pipeline cross section of the heat supply system through the temperature sensor probe to detect the center temperature of the pipeline; the pipeline middle layer temperature sensing probe unit is set at the middle layer of the pipeline cross section of the heat supply system through the temperature sensor probe, symmetrically distributed between the center point of the pipeline cross section and the pipeline wall, to detect the middle layer temperature of the pipeline; the pipeline edge temperature sensing probe unit is set at the edge of the pipeline cross section of the heat supply system through the temperature sensor probe to detect the edge temperature of the pipeline; the pipeline full cross section temperature calculation unit calculates the average temperature of the pipeline cross section according to the center temperature of the pipeline, the middle layer temperature of the pipeline and the edge temperature of the pipeline; the average temperature is calculated based on the average temperature of the pipeline cross section at both ends of the pipeline heat loss ladder segment to obtain the pipeline heat ladder segment temperature.

[0023] In one embodiment, S200 includes: S201, according to the normal heating temperature information of the heat supply, setting the normal heating temperature of the pipes of the heat supply system and the required temperature difference range of the heating; S202, comparing the pipeline heat step segment temperature with the pipeline normal heating temperature to obtain the pipeline heat step segment temperature difference.

[0024] The principle and effect of the above technical solution are: according to the normal heating temperature information of the heat supply, the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range of heating are set; the pipeline heat step segment temperature is compared with the normal heating temperature of the pipeline to obtain the pipeline heat step segment temperature difference.

[0025] In one embodiment, S300 includes: S301, a phase change energy storage temperature compensation layer is arranged outside the pipeline, and the phase change energy storage temperature compensation is controlled through the phase change energy storage temperature compensation layer according to the pipeline thermal step temperature and the pipeline thermal step temperature difference; S302, detecting the external ambient temperature of the pipeline of the heat supply system by means of an external temperature sensor of the pipeline; According to the pipeline heat step temperature and the pipeline heat step temperature difference, the phase change energy storage temperature compensation is controlled by the phase change energy storage temperature compensation layer, including: according to the pipeline cross-section heating temperature difference, when the pipeline cross-section heating temperature difference is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross-section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross-section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the phase change energy storage temperature compensation heat balance heat is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation is performed for efficient heat balance heating.

[0026] The principle and effect of the above technical solution are as follows: a phase change energy storage temperature compensation layer is set outside the pipeline, and the phase change energy storage temperature compensation layer is used to control the phase change energy storage temperature compensation according to the pipeline thermal step temperature and the pipeline thermal step temperature difference; the external temperature sensor of the pipeline is used to detect the external environment temperature of the pipeline of the heat supply system; According to the pipeline heat step temperature and the pipeline heat step temperature difference, the phase change energy storage temperature compensation is controlled by the phase change energy storage temperature compensation layer, including: according to the pipeline cross-section heating temperature difference, when the pipeline cross-section heating temperature difference is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross-section is higher than the set average heating temperature, the phase change energy storage temperature compensation layer absorbs part of the stored heat, and controls the heat source to reduce the heating temperature; when the average temperature of the pipeline cross-section is lower than the set average heating temperature, the phase change energy storage temperature compensation layer releases part of the stored heat, and performs phase change energy storage temperature compensation heat balance; when the phase change energy storage temperature compensation heat balance heat is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation is performed for efficient heat balance heating; The phase change energy storage and heating layer includes: an anti-corrosion liquid storage cavity 31, which is wrapped outside the heating pipe and forms an anti-corrosion liquid storage cavity through a polymer anti-corrosion material; a supersaturated solution layer 32, which is filled into an elastic liquid storage capsule 322 through a phase change energy storage supersaturated solution 321, and the elastic liquid storage capsule fills the anti-corrosion liquid storage cavity, and the elastic liquid storage capsule buffers the thermal expansion and contraction pressure between the phase change energy storage supersaturated solution and the anti-corrosion liquid storage cavity; a crystal controller 33, which is arranged in the elastic liquid storage capsule and contacts with the phase change energy storage supersaturated solution; a deformation automatic crystal 34, which is arranged in the crystal controller; through the crystal controller, according to the temperature sensor control signal, the deformation automatic crystal and The supersaturated solutions of phase change energy storage are in contact or separated, triggering the supersaturated solutions of phase change energy storage to crystallize and dissipate heat or return to the supersaturated solution state after re-absorbing heat; according to the heating temperature difference of the pipeline cross section, when the heating temperature difference of the pipeline cross section is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the heat of phase change energy storage temperature compensation heat balance is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation and efficient heat balance heating are performed.

[0027] In one embodiment, S400 includes: S401, the temperature difference abnormal heat imbalance analysis unit, sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segment temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the pipeline temperature difference abnormal heat imbalance section; The external auxiliary heat insulation protection unit performs external auxiliary heat insulation protection on the pipeline through the external auxiliary heat insulation protection device according to the external ambient temperature of the pipeline; The thermal imbalance segmented alarm unit, according to the abnormal thermal imbalance segment of the pipeline temperature difference, uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm and an abnormal pipeline protection alarm.

[0028] The principle and effect of the above technical solution are as follows: the temperature difference abnormal thermal imbalance analysis unit sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segment temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the pipeline temperature difference abnormal thermal imbalance section; the external auxiliary thermal insulation protection unit performs external auxiliary thermal insulation protection for the pipeline through the external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; the thermal imbalance segmentation alarm unit performs the pipeline temperature difference abnormal thermal imbalance section alarm and pipeline protection abnormal alarm through the segmentation alarm device according to the pipeline temperature difference abnormal thermal imbalance section; the external auxiliary thermal insulation protection device includes: a thermal aerogel protective layer 41, an elastic expansion and contraction sealing layer 42 and an air gap opening and closing outer layer 43; the thermal aerogel protective layer, a thermal insulation aerogel protective layer is set outside the phase change energy storage temperature compensation layer, and the thermal insulation aerogel protective layer is used to External auxiliary thermal insulation protection; elastic expansion and contraction sealing layer, an elastic expansion and contraction sealing layer is arranged outside the thermal insulation aerogel protective layer, the thermal insulation aerogel protective layer is sealed by the elastic expansion and contraction sealing layer and the expansion and contraction of the thermal insulation aerogel protective layer is adjusted; an air gap opening and closing outer layer, an air gap opening and closing outer layer is arranged outside the elastic expansion and contraction sealing layer, and the expansion and contraction between the air gap opening and closing outer layer and the elastic expansion and contraction sealing layer are used to increase the temperature and prevent damage to the pipeline heat loss ladder section and the pipeline elbow section and to insulate the low-temperature gap; the air gap opening and closing outer layer is provided with a temperature-controlled air gap; when When the ambient temperature outside the pipeline increases, the elastic expansion and contraction sealing layer expands and applies expansion force to the outer layer of the air gap opening and closing, and the temperature-controlled air gap opens to prevent the pipeline from being squeezed inward and deformed or the pipeline joint from being broken and damaged; when the ambient temperature outside the pipeline decreases, the elastic expansion and contraction sealing layer shrinks and loses its expansion force, and the temperature-controlled air gap closes. When the ambient temperature outside the pipeline further decreases and reaches the stage of micro-gap separation between the layers, the elastic expansion and contraction sealing layer and the outer layer of the air gap opening and closing shrink and separate to form a negative pressure gap layer, which protects the pipeline from damage due to temperature rise and insulates the low-temperature gap.

[0029] The present invention provides a pipeline detection and protection system for a heat supply system, comprising: The segmented temperature sensing full-section detection module divides the heat loss of each section of the pipeline of the heat supply system into sections and sets up a full-section temperature sensing group of the pipeline to detect the temperature of the pipeline heat ladder section; The heat step segment temperature comparison module compares the heat step segment temperature of the pipeline with the normal heating temperature of the pipeline to obtain the heat step segment temperature difference of the pipeline; The phase change energy storage temperature compensation heat balance module controls the phase change energy storage temperature compensation through the phase change energy storage temperature compensation layer according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference; detects the external environment temperature of the pipeline of the heat supply system; The thermal imbalance protection segmented alarm module calculates the abnormal thermal imbalance segment of the pipeline temperature difference; performs external auxiliary thermal insulation protection on the pipeline through the external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; and uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm for the pipeline temperature difference and an abnormal pipeline protection alarm.

[0030] The principle and effect of the above technical solution are as follows: the present invention provides a pipeline detection and protection system for a heat supply system, including: a segmented temperature sensing full-section detection module, which performs heat loss step segmentation on each section of the pipeline of the heat supply system and sets a pipeline full-section temperature sensing group to detect the pipeline heat step segment temperature; a heat step segment temperature comparison module, which compares the pipeline heat step segment temperature with the pipeline normal heating temperature to obtain the pipeline heat step segment temperature difference; a phase change energy storage temperature compensation heat balance module, which controls the phase change energy storage temperature compensation through the phase change energy storage temperature compensation layer according to the pipeline heat step segment temperature and the pipeline heat step segment temperature difference; detects the external environment temperature of the pipeline of the heat supply system; and a thermal imbalance protection module. The protection segmented alarm module calculates the abnormal thermal imbalance segment of the pipeline temperature difference; according to the external ambient temperature of the pipeline, the external auxiliary thermal insulation protection device is used to perform the external auxiliary thermal insulation protection of the pipeline; and the segmented alarm device is used to alarm the abnormal thermal imbalance segment of the pipeline temperature difference and the pipeline protection abnormality alarm; it can promote the development of energy technology, the intelligentization of heat supply and significantly improve the energy utilization efficiency; it can perform comprehensive temperature detection on each section of the pipeline of the heat supply system; it can obtain more accurate temperature differences between each section of the pipeline and the normal heating temperature of the pipeline; it can reuse the segmented temperature difference of the pipeline heat and the external ambient temperature of the pipeline and store energy for heating; it can monitor the abnormal temperature difference of the pipeline, perform auxiliary thermal insulation protection of the pipeline and alarm the pipeline abnormality.

[0031] In one embodiment, the segmented temperature sensing full-section detection module includes: The pipeline segment temperature sensor layout unit divides the heat loss of each section of the pipeline of the heat supply system into different stages according to the heat loss statistics of the pipeline, and obtains the heat loss stage segmentation of the pipeline; The pipeline cross-section segmentation detection unit sets up pipeline full-section temperature sensing groups between each pipeline heat loss step segment according to the pipeline heat loss step segmentation to detect the pipeline heat step segment temperature; the thermal management data transmission unit quickly reports the pipeline heat step segment temperature data that does not meet the normal heating temperature to the thermal supply system data management center.

[0032] The principle and effect of the above technical solution are as follows: the segmented temperature sensing full-section detection module includes: the pipeline segmented temperature sensing layout unit, for each section of the pipeline of the heat supply system, the heat loss step segmentation is performed according to the pipeline heat loss statistical data, and the pipeline heat loss step segmentation is obtained; the heat loss step segmentation is performed according to the pipeline heat loss statistical data, and the pipeline heat loss step segmentation includes: according to the pipeline heat loss statistical data, the temperature drop between the heat source end pipeline and the heating end pipeline is extracted, and the temperature drop is divided into cooling steps, and the heat loss steps are calculated according to the cooling steps according to the heating pipeline diameter and the heating flow rate; according to the heat loss statistical data, the heat loss step segmentation is calculated according to the heat loss statistical data. The pipeline length corresponding to the loss level is divided into steps to obtain the pipeline heat loss step segmentation; the pipeline section segmentation detection unit, according to the pipeline heat loss step segmentation, distributes the pipeline full section temperature sensing group between each pipeline heat loss step segmentation to detect the pipeline heat step segment temperature; the thermal management data transmission unit, quickly reports the pipeline heat step segment temperature data that does not meet the normal heating temperature to the thermal supply system data management center; the pipeline full section temperature sensing group includes: pipeline center temperature sensing probe unit 11, pipeline middle layer temperature sensing probe unit 12, pipeline edge temperature sensing probe unit 13 and pipeline full section temperature calculation unit 14; The pipeline center temperature sensing probe unit is set at the center point of the pipeline cross section of the heat supply system through the temperature sensor probe to detect the center temperature of the pipeline; the pipeline middle layer temperature sensing probe unit is set at the middle layer of the pipeline cross section of the heat supply system through the temperature sensor probe, symmetrically distributed between the center point of the pipeline cross section and the pipeline wall, to detect the middle layer temperature of the pipeline; the pipeline edge temperature sensing probe unit is set at the edge of the pipeline cross section of the heat supply system through the temperature sensor probe to detect the edge temperature of the pipeline; the pipeline full cross section temperature calculation unit calculates the average temperature of the pipeline cross section according to the center temperature of the pipeline, the middle layer temperature of the pipeline and the edge temperature of the pipeline; the average temperature is calculated based on the average temperature of the pipeline cross section at both ends of the pipeline heat loss ladder segment to obtain the pipeline heat ladder segment temperature.

[0033] In one embodiment, the thermal step-by-step temperature comparison module includes: The heat supply temperature setting unit sets the normal heating temperature of the pipes of the heat supply system and the required temperature difference range of heating according to the normal heating temperature information of the heat supply; The heat loss segment comparison unit compares the pipeline heat step segment temperature with the pipeline normal heating temperature to obtain the pipeline heat step segment temperature difference.

[0034] The principle and effect of the above technical solution are: a heat step-by-step temperature comparison module, including: a heat supply temperature setting unit, which sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range of heating according to the normal heating temperature information of the heat supply; a heat loss segmented comparison unit, which compares the heat step-by-step temperature of the pipeline with the normal heating temperature of the pipeline to obtain the heat step-by-step temperature difference of the pipeline.

[0035] In one embodiment, the phase change energy storage temperature compensation heat balance module includes: The phase-change energy storage temperature compensation unit sets a phase-change energy storage temperature compensation layer outside the pipeline, and controls the phase-change energy storage temperature compensation through the phase-change energy storage temperature compensation layer according to the pipeline thermal step temperature and the pipeline thermal step temperature difference; The pipeline environment temperature detection unit detects the external environment temperature of the pipeline of the heat supply system through the pipeline external temperature sensor; According to the pipeline heat step temperature and the pipeline heat step temperature difference, the phase change energy storage temperature compensation is controlled by the phase change energy storage temperature compensation layer, including: according to the pipeline cross-section heating temperature difference, when the pipeline cross-section heating temperature difference is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross-section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross-section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the phase change energy storage temperature compensation heat balance heat is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation is performed for efficient heat balance heating.

[0036] The principle and effect of the above technical solution are as follows: the phase change energy storage temperature compensation heat balance module includes: a phase change energy storage temperature compensation unit, a phase change energy storage temperature compensation layer is set outside the pipeline, and the phase change energy storage temperature compensation is controlled through the phase change energy storage temperature compensation layer according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference; a pipeline environment temperature detection unit, through the pipeline external temperature sensor, detects the pipeline external environment temperature of the heat supply system; according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference, the phase change energy storage temperature compensation is controlled through the phase change energy storage temperature compensation layer, including: According to the heating temperature difference of the pipeline section, when the heating temperature difference of the pipeline section is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline section is higher than the set average heating temperature, the phase change energy storage temperature compensation layer absorbs part of the stored heat, and controls the heat source to reduce the heating temperature; when the average temperature of the pipeline section is lower than the set average heating temperature, the phase change energy storage temperature compensation layer releases part of the stored heat, and the phase change energy storage temperature compensation heat balance is carried out; when the heat of the phase change energy storage temperature compensation heat balance is exhausted, the heat source is controlled to increase the heating temperature; the phase change energy storage temperature compensation is carried out for efficient heat balance heating; The phase change energy storage and heating layer includes: an anti-corrosion liquid storage cavity 31, which is wrapped outside the heating pipe and forms an anti-corrosion liquid storage cavity through a polymer anti-corrosion material; a supersaturated solution layer 32, which is filled into an elastic liquid storage capsule 322 through a phase change energy storage supersaturated solution 321, and the elastic liquid storage capsule fills the anti-corrosion liquid storage cavity, and the elastic liquid storage capsule buffers the thermal expansion and contraction pressure between the phase change energy storage supersaturated solution and the anti-corrosion liquid storage cavity; a crystal controller 33, which is arranged in the elastic liquid storage capsule and contacts with the phase change energy storage supersaturated solution; a deformation automatic crystal 34, which is arranged in the crystal controller; through the crystal controller, according to the temperature sensor control signal, the deformation automatic crystal and The supersaturated solutions of phase change energy storage are in contact or separated, triggering the supersaturated solutions of phase change energy storage to crystallize and dissipate heat or return to the supersaturated solution state after re-absorbing heat; according to the heating temperature difference of the pipeline cross section, when the heating temperature difference of the pipeline cross section is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the heat of phase change energy storage temperature compensation heat balance is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation and efficient heat balance heating are performed.

[0037] In one embodiment, the thermal imbalance protection segmented alarm module includes: The temperature difference abnormal heat imbalance analysis unit sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segment temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the pipeline temperature difference abnormal heat imbalance section; The external auxiliary heat insulation protection unit performs external auxiliary heat insulation protection on the pipeline through the external auxiliary heat insulation protection device according to the external ambient temperature of the pipeline; The thermal imbalance segmented alarm unit, according to the abnormal thermal imbalance segment of the pipeline temperature difference, uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm and an abnormal pipeline protection alarm.

[0038] The principle and effect of the above technical solution are as follows: a thermal imbalance protection segmented alarm module, including: a temperature difference abnormal thermal imbalance analysis unit, which sets the normal heating temperature of the pipeline of the thermal supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segmented temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the abnormal thermal imbalance section of the pipeline temperature difference; an external auxiliary thermal insulation protection unit, which performs external auxiliary thermal insulation protection of the pipeline through an external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; a thermal imbalance segmented alarm unit, which performs an abnormal thermal imbalance section alarm and a pipeline protection abnormal alarm through a segmented alarm device according to the abnormal thermal imbalance section of the pipeline temperature difference; an external auxiliary thermal insulation protection device, including: a thermal aerogel protective layer, an elastic expansion and contraction sealing layer and an air gap opening and closing outer layer; a thermal aerogel protective layer, in which a thermal insulation aerogel protective layer is arranged outside the phase change energy storage temperature compensation layer, and the thermal insulation aerogel protective layer is used to protect the pipe bends where heat is easily lost The head section is provided with external auxiliary heat insulation protection; an elastic expansion and contraction sealing layer is provided outside the heat-insulating aerogel protective layer, the heat-insulating aerogel protective layer is sealed by the elastic expansion and contraction sealing layer, and the expansion and contraction of the heat-insulating aerogel protective layer is adjusted; an air gap opening and closing outer layer is provided outside the elastic expansion and contraction sealing layer, and the air gap opening and closing outer layer is provided with expansion and contraction between the elastic expansion and contraction sealing layer to provide temperature-raising and damage-proof protection for the heat loss step sections and the pipe elbow sections and to provide low-temperature gap insulation; the air gap opening and closing outer layer is provided with a temperature-controlled air gap When the ambient temperature outside the pipeline rises, the elastic expansion and contraction sealing layer expands and applies expansion force to the outer layer of the air gap opening and closing, and the temperature-controlled air gap opens to prevent the pipeline from being squeezed inward and deformed or the pipeline joint from being broken and damaged; when the ambient temperature outside the pipeline drops, the elastic expansion and contraction sealing layer shrinks and loses its expansion force, and the temperature-controlled air gap closes. When the ambient temperature outside the pipeline further drops to reach the point of separation between the layers, the elastic expansion and contraction sealing layer and the outer layer of the air gap opening and closing shrink and separate to form a negative pressure gap layer, which protects the pipeline from damage due to temperature rise and insulates the low-temperature gap.

[0039] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A pipeline detection and protection method for a heat supply system, characterized in that: include: S100, heat loss is divided into different sections of the pipeline of the heat supply system and a temperature sensing group for the entire section of the pipeline is set to detect the temperature of the pipeline heat step section; S200, comparing the pipeline heat ladder segment temperature with the pipeline normal heating temperature to obtain the pipeline heat ladder segment temperature difference; S300, according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference, the phase change energy storage temperature compensation layer is used to control the phase change energy storage temperature compensation layer; the external environment temperature of the pipeline of the heat supply system is detected; S400, calculating the abnormal thermal imbalance section of the pipeline temperature difference; performing external auxiliary thermal insulation protection on the pipeline through an external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; and performing an abnormal thermal imbalance section alarm of the pipeline temperature difference and an abnormal pipeline protection alarm through a segmented alarm device.

2. A pipeline detection and protection method for a heat supply system according to claim 1, characterized in that: S100 includes: S101, for each section of the pipeline of the heat supply system, heat loss is divided into stages according to the heat loss statistical data of the pipeline, and the heat loss stage segmentation of the pipeline is obtained; S102, according to the pipeline heat loss step segmentation, the pipeline full-section temperature sensing groups are distributed between each pipeline heat loss step segment to detect the pipeline heat step segment temperature; the thermal management data transmission unit quickly reports the pipeline heat step segment temperature data that does not meet the normal heating temperature to the thermal supply system data management center.

3. The pipeline detection and protection method of a heat supply system according to claim 1 is characterized in that: S200 includes: S201, according to the normal heating temperature information of the heat supply, setting the normal heating temperature of the pipes of the heat supply system and the required temperature difference range of the heating; S202, comparing the pipeline heat step segment temperature with the pipeline normal heating temperature to obtain the pipeline heat step segment temperature difference.

4. The pipeline detection and protection method of a heat supply system according to claim 1 is characterized in that: S300 includes: S301, a phase change energy storage temperature compensation layer is arranged outside the pipeline, and the phase change energy storage temperature compensation is controlled through the phase change energy storage temperature compensation layer according to the pipeline thermal step temperature and the pipeline thermal step temperature difference; S302, detecting the external ambient temperature of the pipeline of the heat supply system by means of an external temperature sensor of the pipeline; According to the pipeline heat step temperature and the pipeline heat step temperature difference, the phase change energy storage temperature compensation is controlled by the phase change energy storage temperature compensation layer, including: according to the pipeline cross-section heating temperature difference, when the pipeline cross-section heating temperature difference is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross-section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross-section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the phase change energy storage temperature compensation heat balance heat is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation is performed for efficient heat balance heating.

5. The pipeline detection and protection method of a heat supply system according to claim 1 is characterized in that: S400 includes: S401, the temperature difference abnormal heat imbalance analysis unit, sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segment temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the pipeline temperature difference abnormal heat imbalance section; The external auxiliary heat insulation protection unit performs external auxiliary heat insulation protection on the pipeline through the external auxiliary heat insulation protection device according to the external ambient temperature of the pipeline; The thermal imbalance segmented alarm unit, according to the abnormal thermal imbalance segment of the pipeline temperature difference, uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm and an abnormal pipeline protection alarm.

6. A pipeline detection and protection system for a heat supply system, characterized in that: include: The segmented temperature sensing full-section detection module divides the heat loss of each section of the pipeline of the heat supply system into sections and sets up a full-section temperature sensing group of the pipeline to detect the temperature of the pipeline heat ladder section; The heat step segment temperature comparison module compares the heat step segment temperature of the pipeline with the normal heating temperature of the pipeline to obtain the heat step segment temperature difference of the pipeline; The phase change energy storage temperature compensation heat balance module controls the phase change energy storage temperature compensation through the phase change energy storage temperature compensation layer according to the pipeline heat ladder segment temperature and the pipeline heat ladder segment temperature difference; detects the external environment temperature of the pipeline of the heat supply system; The thermal imbalance protection segmented alarm module calculates the abnormal thermal imbalance segment of the pipeline temperature difference; performs external auxiliary thermal insulation protection on the pipeline through the external auxiliary thermal insulation protection device according to the external ambient temperature of the pipeline; and uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm for the pipeline temperature difference and an abnormal pipeline protection alarm.

7. A pipeline detection and protection system for a heat supply system according to claim 6, characterized in that: Segmented temperature sensing full-section detection module, including: The pipeline segment temperature sensor layout unit divides the heat loss of each section of the pipeline of the heat supply system into different stages according to the heat loss statistics of the pipeline, and obtains the heat loss stage segmentation of the pipeline; The pipeline cross-section segmentation detection unit sets up pipeline full-section temperature sensing groups between each pipeline heat loss step segment according to the pipeline heat loss step segmentation to detect the pipeline heat step segment temperature; the thermal management data transmission unit quickly reports the pipeline heat step segment temperature data that does not meet the normal heating temperature to the thermal supply system data management center.

8. The pipeline detection and protection system for a heat supply system according to claim 6, characterized in that: Thermal step temperature comparison module, including: The heat supply temperature setting unit sets the normal heating temperature of the pipes of the heat supply system and the required temperature difference range of heating according to the normal heating temperature information of the heat supply; The heat loss segment comparison unit compares the pipeline heat step segment temperature with the pipeline normal heating temperature to obtain the pipeline heat step segment temperature difference.

9. The pipeline detection and protection system for a heat supply system according to claim 6, characterized in that: The phase change energy storage heating balance module includes: The phase-change energy storage temperature compensation unit sets a phase-change energy storage temperature compensation layer outside the pipeline, and controls the phase-change energy storage temperature compensation through the phase-change energy storage temperature compensation layer according to the pipeline thermal step temperature and the pipeline thermal step temperature difference; The pipeline environment temperature detection unit detects the external environment temperature of the pipeline of the heat supply system through the pipeline external temperature sensor; According to the pipeline heat step temperature and the pipeline heat step temperature difference, the phase change energy storage temperature compensation is controlled by the phase change energy storage temperature compensation layer, including: according to the pipeline cross-section heating temperature difference, when the pipeline cross-section heating temperature difference is greater than the set pipeline heating temperature difference range, and the average temperature of the pipeline cross-section is higher than the set average heating temperature, part of the stored heat is absorbed by the phase change energy storage temperature compensation layer, and the heat source is controlled to lower the heating temperature; when the average temperature of the pipeline cross-section is lower than the set average heating temperature, part of the stored heat is released by the phase change energy storage temperature compensation layer, and phase change energy storage temperature compensation heat balance is performed; when the phase change energy storage temperature compensation heat balance heat is exhausted, the heat source is controlled to increase the heating temperature; and phase change energy storage temperature compensation is performed for efficient heat balance heating.

10. The pipeline detection and protection system for a heat supply system according to claim 6, characterized in that: Thermal imbalance protection segmented alarm module, including: The temperature difference abnormal heat imbalance analysis unit sets the normal heating temperature of the pipeline of the heat supply system and the required temperature difference range for heating; calculates the temperature difference between the pipeline heat ladder segment temperature and the normal heating temperature of the pipeline, and obtains the temperature difference between each section of the pipeline and the normal heating temperature; counts the pipeline sections whose temperature difference between each section of the pipeline and the normal heating temperature exceeds the required temperature difference range for heating, and obtains the pipeline temperature difference abnormal heat imbalance section; The external auxiliary heat insulation protection unit performs external auxiliary heat insulation protection on the pipeline through the external auxiliary heat insulation protection device according to the external ambient temperature of the pipeline; The thermal imbalance segmented alarm unit, according to the abnormal thermal imbalance segment of the pipeline temperature difference, uses the segmented alarm device to issue an abnormal thermal imbalance segment alarm and an abnormal pipeline protection alarm.

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