Steam pipe network energy efficiency management and control system and energy efficiency management and control method

Abstract

The application relates to the technical field of steam pipe network management, in particular to a steam pipe network energy efficiency management and control system and an energy efficiency management and control method, which comprises the following modules: a node formulating module, which is used for formulating independent nodes at each heat source and heat user; a line acquisition module, which is used for acquiring steam pipelines and line information between each source node and each terminal node; a steam data acquisition module, which is used for acquiring operation data corresponding to each steam pipeline; an energy efficiency calculation module, which is used for calculating energy efficiency data of each steam pipeline according to the operation data and the line information of the steam pipeline; and a management and control module, which is used for generating a management and control scheme of each steam pipeline based on the energy efficiency data corresponding to the steam pipeline and controlling the on-off and opening degree of the steam pipeline according to the management and control scheme. The application has the effect of improving the steam pipe network energy consumption management and control effect when multiple users have complex heat demand.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steam pipe network management, and in particular to a steam pipe network energy efficiency management and control system and method. BACKGROUND

[0002] Steam is one of the most widely used heat carriers and is widely used in industrial systems. A steam pipe network is a transmission system composed of a plurality of steam pipelines for transporting steam, which is widely used in systems of cities, parks and the like in the petroleum, chemical, pharmaceutical and other industries. The steam pipe network is directly related to the operation, scheduling and deployment of the entire steam transmission and is the lifeline related to various production and operation links.

[0003] In the current situation of complex heat demand of multiple users, the arrangement of the steam pipe network is generally chaotic. When connecting the steam pipelines of many users, the principle of proximity is simply adopted to find the steam pipeline closest to the user address for connection. This results in excessive pressure in some steam pipelines and affects the quality of steam in these pipelines. Overall, the energy efficiency control of the steam pipe network is unreasonable, resulting in a large waste of steam resources. SUMMARY

[0004] The purpose of the present application is to improve the energy consumption control effect of the steam pipe network in the case of complex heat demand of multiple users.

[0005] In a first aspect, the present application provides a steam pipe network energy efficiency management and control system, which adopts the following technical solution:

[0006] A steam pipe network energy efficiency management and control system comprises:

[0007] A node formulation module for formulating independent nodes at each heat source and heat sink, wherein the nodes include source nodes and terminal nodes;

[0008] A line acquisition module for acquiring steam pipelines between each source node and each terminal node and line information corresponding to each steam pipeline;

[0009] A steam data acquisition module for acquiring operating data corresponding to each steam pipeline, wherein the operating data includes steam flow and / or steam pressure;

[0010] An energy efficiency calculation module for calculating energy efficiency data of each steam pipeline according to the operating data and line information of each steam pipeline;

[0011] The control module generates a control scheme for each steam pipeline based on the energy efficiency data corresponding to each steam pipeline, sends the control scheme to the source node and the terminal node corresponding to each steam pipeline for confirmation, and after obtaining the confirmation information of the source node and the terminal node, controls the on-off and opening degree of the steam pipeline according to the control scheme.

[0012] In some other embodiments, the line acquisition module is configured to determine whether the number of steam pipelines corresponding to each source node or each terminal node is greater than one.

[0013] If the number is greater than one, a plurality of corresponding steam pipelines are summarized as a total line, and the steam pipelines in one total line are branch lines.

[0014] If the number is not greater than one, the unique steam pipeline is defined as a branch line.

[0015] If the total line corresponds to the same source node, the total line is a homologous total line, and the branch lines in the total line are homologous branch lines.

[0016] If the total line corresponds to the same terminal node, the total line is a homologous total line, and the branch lines in the total line are homologous branch lines.

[0017] In some other embodiments, the historical data reference module is further configured to obtain historical energy consumption data corresponding to different steam pipelines, and calculate historical unit energy consumption ratios including unit length energy consumption ratio and unit time energy consumption ratio in combination with the input time and the pipeline length information in the line information.

[0018] The historical data reference module is further configured to send the historical unit energy consumption ratios to the energy efficiency calculation module to improve the calculation results of the energy consumption data of each steam pipeline.

[0019] In some other embodiments, the control scheme includes increasing the line, reducing the line, increasing the flux, and reducing the flux.

[0020] The control module obtains a first determination result according to whether the operation data of the steam pipeline represents excessive pressure or insufficient pressure, obtains a second determination result by determining whether the steam pipeline belongs to homologous branch lines and / or homologous branch lines, and selects a corresponding control scheme according to the first determination result and the second determination result.

[0021] In some other embodiments, a verification module is further included for detecting whether the steam demand of the terminal node corresponding to the steam pipeline meets a preset requirement after the control module generates a control scheme and controls the steam pipeline to perform corresponding actions according to the control scheme, if yes, the current control scheme is maintained, and if no, an abnormal signal is generated to the control module to make the control module replace the control scheme.

[0022] In a second aspect, the application provides a steam pipe network energy efficiency control method, which adopts the following technical scheme:

[0023] A steam pipe network energy efficiency control method, comprising the following steps:

[0024] An independent node is formulated at each heat source and heat user, which includes a source node and a terminal node;

[0025] A steam pipeline between each source node and each terminal node is obtained, and line information corresponding to each steam pipeline is obtained;

[0026] Operation data corresponding to each steam pipeline is collected, which includes steam flow and / or steam pressure;

[0027] Energy efficiency data of each steam pipeline is calculated according to the operation data and line information of each steam pipeline;

[0028] A control scheme of each steam pipeline is generated based on the energy efficiency data corresponding to each steam pipeline, the control scheme is sent to the source node and the terminal node corresponding to each steam pipeline for confirmation, and after the confirmation information of the source node and the terminal node is obtained, the steam pipeline is controlled according to the control scheme.

[0029] In some other embodiments, the method further comprises:

[0030] It is judged whether the number of steam pipelines between each source node or each terminal node is greater than one;

[0031] If yes, a plurality of corresponding steam pipelines are summarized as a total line, and several steam pipelines in one total line are several branch lines;

[0032] If no, the unique steam pipeline is defined as a branch line;

[0033] If the total line corresponds to the same source node, the total line is a homologous total line, and several branch lines in the total line are homologous branch lines.

[0034] If the bus lines correspond to the same terminal node, the bus lines are homoterminal bus lines, and some of the branch lines in the bus lines are homoterminal bus lines.

[0035] In some other embodiments, the method further comprises the following steps:

[0036] The historical energy consumption data corresponding to different steam pipelines are obtained, and the historical unit energy consumption ratio is calculated in combination with the time of investment and the pipeline length information in the line information, the historical unit energy consumption ratio including the unit length energy consumption ratio and the unit time energy consumption ratio;

[0037] The calculation result of the energy consumption data of each steam pipeline is improved according to the historical unit energy consumption ratio.

[0038] In some other embodiments, the control scheme includes increasing the line, reducing the line, increasing the flux, and reducing the flux, and specifically comprises the following steps:

[0039] According to whether the operation data of the steam pipeline represents excessive pressure to obtain a first judgment result, whether the steam pipeline belongs to homologous branch lines and / or homoterminal branch lines is judged to obtain a second judgment result, and a corresponding control scheme is selected according to the first judgment result and the second judgment result.

[0040] In some other embodiments, the method further comprises the following steps:

[0041] After the control scheme is generated and the steam pipeline is controlled according to the control scheme to perform a corresponding action, it is detected whether the steam demand corresponding to the terminal node corresponding to the steam pipeline meets a preset requirement;

[0042] If the requirement is met, the current control scheme is maintained, and if the requirement is not met, an abnormal signal is generated to the control module to make the control module replace the control scheme.

[0043] In summary, the present application has the following beneficial technical effects:

[0044] The steam pipe network is divided into nodes and steam pipelines connecting the nodes, and the energy consumption data corresponding to each steam pipeline is calculated, and each steam pipeline is controlled according to the independent energy consumption data, the complex system is simplified into an energy consumption model composed of points and lines according to the complex heat demand of multiple users, and the energy consumption of the steam pipeline is controlled according to the independent control method, thereby improving the energy consumption control effect of the steam pipe network. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a schematic diagram of the module connection of the steam pipe network energy efficiency control system in some embodiments of the present application;

[0046] Figure 2 This is a schematic diagram of the module connection of the steam pipeline network energy efficiency management system in some embodiments of this application;

[0047] Figure 3 This is a schematic diagram of the steps in the steam pipeline energy efficiency control method of this application. Detailed Implementation

[0048] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0049] like Figure 1 As shown, this application discloses a steam pipeline network energy efficiency management system, including:

[0050] The node designation module is used to designate independent nodes at each heat source and heat consumption point.

[0051] Nodes include source nodes and terminal nodes. Source nodes correspond to heat sources, which are the steam-generating ends and the starting points of the steam system, typically such as steam-generating plants like coal mines. Terminal nodes correspond to heat-consuming sources, which are the end points of the steam system, typically such as urban residents, factories, industrial parks, and other heat-consuming areas.

[0052] The node designation module allows for the processing of multiple sources and endpoints of a steam system into nodes, facilitating subsequent energy efficiency management.

[0053] The route acquisition module is used to acquire the steam pipeline between each source node and each terminal node, as well as the route information corresponding to each steam pipeline.

[0054] There may be one or more steam pipelines between a source node and a destination node. Similarly, a source node may correspond to multiple destination nodes through steam pipelines, and a destination node may correspond to multiple source nodes through steam pipelines.

[0055] Multiple nodes and multiple steam pipelines together constitute a steam pipeline network system. Each steam pipeline corresponds to specific route information, which may include the pipeline length, source information, destination information, construction time, commissioning time, rated throughput, rated flow rate, current operating throughput, current operating flow rate, etc.

[0056] The steam data acquisition module is configured to acquire operation data corresponding to each steam pipeline, and the operation data includes steam flow and / or steam pressure. The steam flow and the steam pressure can reflect the steam quality obtained by the terminal node and the steam supply pressure borne by the source node. The steam flow can be detected by an internal Venturi flow meter, a vortex flow meter, a variable area flow meter, or an ultrasonic flow meter, and the steam pressure can be detected by a pressure sensor.

[0057] When the steam flow is too large, too small, and / or the steam pressure is too large or too small, the steam pipe network needs to be controlled and adjusted. On the one hand, it is necessary to avoid excessive steam supply bearing pressure at the source node, and on the other hand, it is necessary to avoid waste of steam resources.

[0058] The energy efficiency calculation module is configured to calculate energy efficiency data of each steam pipeline according to operation data and line information of each steam pipeline.

[0059] The energy efficiency data corresponding to each steam pipeline is calculated by combining the detected steam flow and / or steam pressure with the steam pipeline length, rated flow, rated pressure, heat loss, and other data corresponding to the steam pipeline.

[0060] The control module is configured to generate a control scheme for each steam pipeline based on the energy efficiency data corresponding to each steam pipeline, send the control scheme to the source node and the terminal node corresponding to each steam pipeline for confirmation, and after obtaining the confirmation information corresponding to the source node and the terminal node, control the on-off and opening degree of the steam pipeline according to the control scheme.

[0061] The control module generates a control scheme for each steam pipeline according to the energy efficiency data corresponding to each pipeline, changes the steam flow and / or steam pressure corresponding to the steam pipeline by opening, closing, or changing the opening degree of the steam pipeline, so as to realize energy consumption control. If the energy consumption of the steam pipeline is large, the energy consumption pressure corresponding to the steam pipeline is adjusted by closing or reducing the steam flow and / or steam pressure corresponding to the steam pipeline.

[0062] At the same time, when the steam pipeline is controlled and managed according to the control scheme, in order to reduce the influence caused by the change of steam supply, the source node and the terminal node need to confirm and agree to the control scheme before the energy consumption control is performed, so as to realize that the source node and the terminal node are well prepared.

[0063] By the above method, the steam pipe network is divided into a plurality of nodes and steam pipelines connecting the nodes, and the energy consumption data corresponding to each steam pipeline is calculated. According to the independent energy consumption data, the energy consumption of each steam pipeline is controlled and managed, the complex system is simplified into an energy consumption model composed of points and lines, and the energy consumption of the corresponding steam pipeline is controlled and managed according to the independent control method, so as to improve the energy consumption control effect of the steam pipe network.

[0064] As Figure 2 shown in the figures, in some embodiments, the line obtaining module is configured to determine whether the number of steam pipelines corresponding to each source node or each terminal node is greater than one.

[0065] As known from the above disclosure and analysis, one source node can correspond to multiple terminal nodes, and one terminal node can also correspond to multiple source nodes, so it is necessary to determine the number of steam pipelines corresponding to each source node or terminal node.

[0066] If the number of steam pipelines is greater than one, the multiple corresponding steam pipelines are summarized as one total line, and the steam pipelines in one total line are branch lines.

[0067] If it is not greater than one, the only steam pipeline is defined as a branch line.

[0068] If the number of steam pipelines corresponding to one source node or one terminal node is greater than one, these steam pipelines need to be summarized as one total line, and multiple branch lines are included in one total line.

[0069] If the number of steam pipelines corresponding to one source node or one terminal node is not greater than one, and because there cannot be no steam pipeline between the source node and the terminal node, it is indicated that there is only one steam pipeline, so the only steam pipeline is a branch line.

[0070] Specifically, if the total line corresponds to the same source node, the total line is a homologous total line, and the branch lines in the total line are homologous branch lines.

[0071] If the total line corresponds to the same terminal node, the total line is a homologous total line, and the branch lines in the total line are homologous branch lines.

[0072] Among them, the total line is divided into homologous total line and homologous total line, and the homologous total line represents that one source node has multiple steam pipelines, which can correspond to one or more terminal nodes, and the homologous total line represents that one terminal node has multiple steam pipelines, which can correspond to one or more source nodes.

[0073] Correspondingly, multiple homologous branch lines exist in the homologous total line, and multiple homologous branch lines exist in the homologous total line. It should be noted that one steam pipeline can be a homologous branch line or a homologous total line.

[0074] In some embodiments, it also includes a historical data reference module configured to obtain historical energy consumption data corresponding to different steam pipelines, and calculate the historical unit energy consumption ratio in combination with the investment time and the pipeline length information in the line information.

[0075] The historical unit energy consumption ratio includes a unit length energy consumption ratio and a unit time energy consumption ratio.

[0076] The historical energy consumption data of a steam pipeline can reflect the historical energy consumption bearing pressure of the steam pipeline and the energy loss of the steam pipeline itself. Different steam pipelines have different energy loss due to different service time, aging and bearing pressure. Therefore, the unit length energy consumption ratio and the unit time energy consumption ratio of different steam pipelines can be calculated to provide a reference for subsequent energy consumption calculation.

[0077] The unit length energy consumption ratio represents the ratio of the energy consumption data of the steam pipeline to the length of the steam pipeline, and the unit length energy consumption represents the energy consumption per unit length. The unit time energy consumption ratio represents the ratio of the energy consumption data of the steam pipeline to the time in a certain time period, and is used to represent the corresponding energy consumption per unit time.

[0078] The historical data reference module is also used to send the historical unit energy consumption ratio to the energy consumption calculation module to improve the calculation result of the energy consumption data of each steam pipeline.

[0079] The historical unit energy consumption ratio is sent to the energy consumption calculation module to update the calculation result of the energy consumption data. In this way, the influence of heat loss on the energy consumption data is considered by referring to the historical data, and the current energy consumption data calculation result is improved.

[0080] In other embodiments, the control scheme includes increasing a line, reducing a line, increasing a flux, and reducing a flux. The control module is used to obtain a first judgment result according to whether the operation data of the steam pipeline represents that the pressure is too large or too small, obtain a second judgment result by judging whether the steam pipeline belongs to a same-origin branch line and / or a same-terminal branch line, and select a corresponding control scheme according to the first judgment result and the second judgment result.

[0081] Increasing a line represents adding one or more steam pipelines to a terminal node, reducing a line represents reducing one or more steam pipelines from a terminal node, increasing a flux represents increasing the flow and / or pressure of steam in one or more steam pipelines, and reducing a flux represents reducing the flow and / or pressure of steam in one or more steam pipelines.

[0082] Specifically, if the first judgment result represents that the pressure of the steam pipeline is too large, it means that the steam energy consumption pressure carried by the steam pipeline is large, and the steam line needs to be reduced or the flux needs to be reduced. Then, it is judged whether the steam pipeline belongs to a same-origin branch line and / or a same-terminal branch line to select a specific control method.

[0083] If the steam pipeline belongs to both the same source sub-line and the same terminal sub-line, the steam pipeline can be directly closed to reduce the number of lines. Because at this time, the terminal node corresponding to the steam pipeline has other steam pipelines in addition to this steam pipeline, the steam acceptance can be balanced by increasing the flux of other steam pipelines after the steam pipeline is closed, so when adjusting the control, the steam pipeline can be directly closed.

[0084] If the steam pipeline belongs to the same source sub-line but not to the same terminal sub-line, it means that the terminal node corresponding to the steam pipeline only has this steam pipeline. At this time, the steam pipeline cannot be directly closed, but the flux corresponding to the steam pipeline needs to be reduced to reduce the steam transportation pressure of the steam pipeline and to avoid that the terminal node has no steam pipeline available.

[0085] If the steam pipeline belongs to the same terminal sub-line but not to the same source sub-line, it means that the source has only this steam pipeline in use at this time. When the transportation pressure of the steam pipeline is too large, it means that the steam flux or steam pressure is too large. At this time, the flux corresponding to the steam pipeline needs to be reduced to relieve the steam pressure, and the steam pipeline can also be directly closed. Because the terminal node corresponding to the steam pipeline has other steam pipelines, the loss of the steam pipeline can be balanced by increasing the flux of other steam pipelines.

[0086] Similarly, if the first judgment result represents that the pressure of the steam pipeline is small, it means that the steam energy consumption pressure carried by the steam pipeline is small, and the steam pipeline needs to be increased or the flux needs to be increased.

[0087] If the steam pipeline belongs to both the same source sub-line and the same terminal sub-line, other steam pipelines corresponding to source nodes can be added to the terminal node corresponding to the steam pipeline.

[0088] If the steam pipeline belongs to the same source sub-line but not to the same terminal sub-line, other steam pipelines corresponding to source nodes can be added to the terminal node corresponding to the steam pipeline.

[0089] If the steam pipeline belongs to the same terminal sub-line but not to the same source sub-line, the flux corresponding to the steam pipeline can be increased.

[0090] In some other embodiments, a control verification module is further included, which is configured to detect whether the steam demand of the terminal node corresponding to the steam pipeline meets the preset requirement after the control module generates the control scheme and controls the steam pipeline to perform the corresponding action according to the control scheme. If yes, the current control scheme is maintained, and if no, an abnormal signal is generated to the control module to make the control module replace the control scheme.

[0091] After the control scheme is formulated through the first and second determination results, it is further needed to determine whether the steam demand of the terminal node corresponding to the steam pipeline meets the preset requirement after the steam pipeline is adjusted according to the control scheme.

[0092] For example, if the steam demand of the terminal node position is still less than the preset amount after the flux of the steam pipeline is increased, it indicates that the control scheme is unreasonable or not in place, and the control scheme can be further adjusted, such as increasing the flux by a certain amount or adding a steam pipeline to the terminal node.

[0093] In other embodiments, in addition to verifying the steam demand of the terminal node, the steam supply of the source node can also be verified. For example, if the flux of the steam pipeline corresponding to a certain source node is increased, and the steam supply of the source node exceeds the preset limit, the scheme needs to be adjusted, such as not increasing the flux but selecting other source nodes to increase the flux or add a line to the terminal node.

[0094] As shown in Figure 3 The steam pipe network energy efficiency control method disclosed by the application comprises the following steps:

[0095] S100, an independent node is formulated at each heat source and heat sink, and the node comprises a source node and a terminal node.

[0096] S200, a steam pipeline between each source node and each terminal node and line information corresponding to each steam pipeline are obtained.

[0097] S300, running data corresponding to each steam pipeline is collected, and the running data comprises steam flow and / or steam pressure.

[0098] S400, energy efficiency data of each steam pipeline is calculated according to the running data and line information of each steam pipeline.

[0099] S500, a control scheme of each steam pipeline is generated based on the energy efficiency data corresponding to each steam pipeline, the control scheme is sent to the source node and the terminal node corresponding to each steam pipeline for confirmation, and after the confirmation information of the source node and the terminal node is obtained, the steam pipeline is controlled according to the control scheme.

[0100] In other embodiments, the following steps are further included:

[0101] S600, it is determined whether the number of steam pipelines between each source node or each terminal node is greater than one.

[0102] S610, if greater, then the plurality of corresponding steam pipelines are summarized as a total line, and several steam pipelines in one total line are several branch lines.

[0103] S620, if not greater, then the unique steam pipeline is defined as a branch line.

[0104] S630, if the total line corresponds to the same source node, then the total line is a homologous total line, and several branch lines in the total line are homologous branch lines.

[0105] S640, if the total line corresponds to the same terminal node, then the total line is a homologous total line, and several branch lines in the total line are homologous branch lines.

[0106] In some other embodiments, the following steps are further included:

[0107] S700, obtaining historical energy consumption data corresponding to different steam pipelines, and calculating historical unit energy consumption ratios in combination with input time and pipeline length information in line information, the historical unit energy consumption ratios including unit length energy consumption ratio and unit time energy consumption ratio.

[0108] S710, according to the historical unit energy consumption ratios, improving the calculation results of the energy consumption data of each steam pipeline.

[0109] In some other embodiments, the control scheme includes increasing line, reducing line, increasing flux, and reducing flux, and specifically includes the following steps:

[0110] S800, according to whether the operation data of the steam pipeline is represented as excessive pressure to obtain a first judgment result, judging whether the steam pipeline belongs to homologous branch lines and / or homologous terminal branch lines to obtain a second judgment result, and selecting a corresponding control scheme according to the first judgment result and the second judgment result.

[0111] In some other embodiments, the following steps are further included:

[0112] S900, when the control scheme is generated and the steam pipeline is controlled according to the control scheme to perform corresponding actions, detecting whether the steam demand corresponding to the terminal node corresponding to the steam pipeline meets the preset requirement.

[0113] S910, if yes, maintaining the current control scheme, and if no, generating an abnormal signal to the control module to make the control module replace the control scheme.

[0114] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A steam pipeline network energy efficiency management system, characterized in that, include: The node designation module is used to designate independent nodes at each heat source and heat consumption source, wherein the nodes include source nodes and terminal nodes; The route acquisition module is used to acquire the steam pipeline between each source node and each terminal node, as well as the route information corresponding to each steam pipeline. A steam data acquisition module is used to acquire operating data corresponding to each of the steam pipelines, including steam flow rate and / or steam pressure. The energy efficiency calculation module calculates the energy efficiency data of each steam pipeline based on the operating data and line information of each steam pipeline. The control module generates a control plan for each steam pipeline based on the energy efficiency data corresponding to each steam pipeline, sends the control plan to the source node and terminal node corresponding to each steam pipeline for confirmation, and, after obtaining the confirmation information from the source node and terminal node, controls the on / off state and opening degree of the steam pipeline according to the control plan; the line acquisition module is used to determine whether the number of steam pipelines corresponding to each source node or each terminal node is greater than one. If the value is greater than the value, then the multiple corresponding steam pipelines are combined into a main line, and the steam pipelines in a main line are several sub-lines. If it is not greater than, then the unique steam pipeline is defined as a branch line; Wherein, if the main line corresponds to the same source node, then the main line is a common source main line, and the several branch lines in the main line are common source branch lines; If the main line corresponds to the same terminal node, then the main line is a main line with the same terminal node, and the branch lines in the main line are branch lines with the same terminal node. The control scheme includes increasing lines, decreasing lines, increasing throughput, and decreasing throughput, wherein... The control module obtains a first judgment result based on whether the operating data of the steam pipeline indicates excessive or insufficient pressure, obtains a second judgment result by determining whether the steam pipeline belongs to the same source branch line and / or the same end branch line, and selects an appropriate control scheme based on the first judgment result and the second judgment result.

2. The steam pipeline network energy efficiency management system according to claim 1, characterized in that, It also includes a historical data reference module, which is used to obtain historical energy consumption data corresponding to different steam pipelines, and calculate the historical unit energy consumption ratio by combining the commissioning time and pipeline length information in the line information. The historical unit energy consumption ratio includes the unit length energy consumption ratio and the unit time energy consumption ratio. The historical data reference module is also used to send the historical unit energy consumption ratio to the energy efficiency calculation module to improve the calculation results of the energy consumption data of each steam pipeline.

3. A method for energy efficiency management of steam pipeline networks, characterized in that, Includes the following steps: Independent nodes are established at each heat source and heat consumption source, and the nodes include source nodes and terminal nodes; Obtain the steam pipeline between each source node and each terminal node, as well as the corresponding line information of each steam pipeline; Collect operating data for each of the steam pipelines, including steam flow rate and / or steam pressure; Calculate the energy efficiency data of each steam pipeline based on the operating data and line information of each steam pipeline. Based on the energy efficiency data corresponding to each steam pipeline, a control scheme is generated for each steam pipeline. The control scheme is sent to the source node and terminal node corresponding to each steam pipeline for confirmation. After obtaining the confirmation information from the source node and terminal node, the steam pipeline is controlled for on / off and opening degree according to the control scheme. Determine whether the number of steam pipelines between each of the source nodes or each of the terminal nodes is greater than one; If the value is greater than the value, then the multiple corresponding steam pipelines are combined into a main line, and the steam pipelines in a main line are several sub-lines. If it is not greater than, then the unique steam pipeline is defined as a branch line; Wherein, if the main line corresponds to the same source node, then the main line is a common source main line, and the several branch lines in the main line are common source main lines; If the main line corresponds to the same terminal node, then the main line is a main line with the same terminal node, and the branch lines in the main line are main lines with the same terminal node. The control scheme includes adding lines, reducing lines, increasing throughput, and reducing throughput, specifically including the following steps: A first judgment result is obtained based on whether the operating data of the steam pipeline indicates excessive pressure. A second judgment result is obtained by determining whether the steam pipeline belongs to the same source branch line and / or the same end branch line. An appropriate control scheme is selected based on the first judgment result and the second judgment result.

4. The steam pipeline network energy efficiency control method according to claim 3, characterized in that, It also includes the following steps: Historical energy consumption data corresponding to different steam pipelines are obtained, and historical unit energy consumption ratios are calculated by combining the commissioning time and pipeline length information in the line information. The historical unit energy consumption ratios include unit length energy consumption ratios and unit time energy consumption ratios. The calculation results of energy consumption data for each of the steam pipelines are improved based on the historical unit energy consumption ratio.

5. The steam pipeline network energy efficiency control method according to claim 3, characterized in that, It also includes the following steps: After the control scheme is generated and the steam pipeline is controlled to perform corresponding actions according to the control scheme, it is detected whether the steam demand corresponding to the terminal node of the steam pipeline meets the preset requirements. If the conditions are met, the current control scheme is maintained; if not, an abnormal signal is generated and sent to the control module to cause the control module to change the control scheme.

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