CN117010131B - Method for analyzing network management loss of steam heating pipe - Google Patents

Abstract

The present invention discloses a method for analyzing pipe loss of a steam heating pipe network, comprising: establishing a pipe loss simulation model based on the geographical information of the pipe network; substituting historical data into the pipe loss simulation model, and correcting the pipe loss simulation model according to the generated historical simulation results; inputting real-time data into the pipe loss simulation model to generate real-time simulation results; checking the real-time simulation results by calculating the deviation between the real-time data and the real-time simulation results, and correcting the current real-time simulation results according to the test results, and sending them to the pipe loss simulation model for display; the present invention adopts geographical information and pipe network characteristic parameters to establish a pipeline operation simulation model, realizes real-time monitoring and analysis of pipe losses through hard measurement of actual data and soft measurement of simulation data, and can accurately display the location of abnormal pipelines, assist personnel in monitoring, and avoid the influence of human operation on the pipe loss analysis process of the steam heating pipe network.

Description

A method for analyzing pipe loss of steam heating pipe network

Technical Field

The present invention relates to the technical field of steam heating pipe networks, and more specifically to a method for analyzing pipe losses in steam heating pipe networks.

Background Art

In response to the national energy development strategy, various regions have gradually banned small boilers and switched to cogeneration of heat and power for large-scale heat transmission. With the continuous improvement of economic development and the requirements for heating quality, the heating network is developing in a large-scale and complex manner. The production tasks faced by heating companies are arduous, and they urgently need to adopt modern production management technologies and models to adapt to the future development requirements of centralized heating and cope with more challenges in the safe operation of the heating network and energy saving and consumption reduction.

As the promotion of centralized industrial steam supply becomes more and more in-depth, the pipe loss rate, as an internal assessment indicator of heating enterprises, has become the focus of disputes; trade disputes between heating enterprises and heat users caused by the accuracy of meter measurement also occur from time to time, which seriously restricts the development of the steam heating market; long-term development will go against the original intention of energy conservation and environmental protection of the country;

Existing pipe loss analysis schemes for steam heating pipe networks often adopt the method of adding detection points for analysis. However, in actual operation, the real-time monitoring and analysis of existing technical means are not accurate enough. Secondly, steam users can automatically shut down the heating pipeline according to their own needs, which directly affects the pipe loss analysis process. Therefore, how to provide a steam heating pipe network pipe loss analysis method that can improve the accuracy of pipe loss analysis, accurately display the location of abnormal pipelines and avoid the impact of human operation has become a technical problem to be solved in this technical field.

Summary of the invention

To solve the above problems, the present invention provides the following technical solutions:

A method for analyzing pipe loss of a steam heating pipe network, comprising:

Step 1: Establish a pipe loss simulation model based on the pipe network geographic information;

Step 2: Substituting historical data into the pipe loss simulation model, and correcting the pipe loss simulation model according to the generated historical simulation results;

Step 3, inputting the real-time data into the pipe loss simulation model to generate real-time simulation results;

Step 4: Check the real-time simulation result by calculating the deviation between the real-time data and the real-time simulation result, and correct the current real-time simulation result according to the check result, and send it to the pipe loss simulation model for display.

Preferably, in the above-mentioned method for analyzing pipe loss of a steam heating pipe network, the establishment of a pipe loss simulation model based on the pipe network geographic information comprises the following steps:

Step 1: Establishing the pipe loss simulation model based on the terrain information of the heating pipe network; the terrain information includes the heat source location, user location, pipeline direction information, pipeline length, pipeline diameter, valve location, steam trap location, and compensator location;

Step 2: Calculate the ideal pipeline coefficient according to the terrain information, and insert the ideal pipeline coefficient into the corresponding position of the pipe loss simulation model;

Step three: insert the pipe loss simulation model into the map based on the location information of the heating pipe network and display it through a display device.

Preferably, in the above-mentioned method for analyzing pipe loss in a steam heating pipe network, the ideal pipe coefficient includes: an ideal resistance coefficient and an ideal heat transfer coefficient.

Preferably, in the above-mentioned method for analyzing pipe loss of a steam heating pipe network, substituting historical data into the pipe loss simulation model and correcting the pipe loss simulation model according to the generated historical simulation results comprises the following steps:

Step 1, obtaining several historical resistance coefficients and historical heat transfer coefficients of each section of the pipeline under normal conditions;

Step 2: Calculate the average values of several historical resistance coefficients and ideal resistance coefficients of each section of the pipeline in turn, generate an average resistance coefficient, and replace the ideal resistance coefficient with the average resistance coefficient and insert it into the pipe loss simulation model; calculate the average values of several historical heat transfer coefficients and ideal heat transfer coefficients of each section of the pipeline in turn, generate an average heat transfer coefficient, and replace the ideal heat transfer coefficient with the average heat transfer coefficient and insert it into the pipe loss simulation model;

Step 3, obtaining multiple groups of historical measured operation data of each section of the pipeline, each group of the historical measured operation data includes instantaneous flow data, temperature data, and pressure data of the steam supply end and several steam consumption ends;

Step 4: Substitute the measured operation data of the historical steam supply end into the pipe loss simulation model in sequence, perform simulation calculations based on the average resistance coefficient and average heat transfer coefficient of each section of the pipeline, and obtain simulated instantaneous flow data, simulated temperature data, and simulated pressure data of several steam consumption ends;

Step 5, the simulated instantaneous flow data, simulated temperature data and simulated pressure data of several steam-using ends are respectively compared with the measured operation data of the historical steam-using ends, and the flow difference, temperature difference and pressure difference of each section of the pipeline are calculated;

Step six, adjusting the average resistance coefficient and average heat transfer coefficient corresponding to each section of the pipeline according to each flow difference, temperature difference and pressure difference, and outputting the corrected pipe loss simulation model.

Preferably, in the above-mentioned method for analyzing pipe loss of a steam heating pipe network, the step of adjusting the average resistance coefficient and the average heat transfer coefficient corresponding to each section of the pipe according to each flow difference, temperature difference and pressure difference further includes:

A deviation range is preset. When the flow rate difference, temperature difference and pressure difference meet the deviation range, there is no need to adjust the average resistance coefficient and the average heat transfer coefficient.

Preferably, in the above-mentioned method for analyzing pipe loss of a steam heating pipe network, the step of inputting real-time data into the pipe loss simulation model to generate real-time simulation results comprises:

Step 1: Obtain the instantaneous flow data of the current steam supply end, and substitute it into the modified pipe loss simulation model; obtain the simulated instantaneous flow data, simulated temperature data and simulated pressure data of each steam consumption end through calculation;

Step 2: Calculate the instantaneous pipe loss rate;

Step three: preset a standard range of pipe loss, compare the obtained instantaneous pipe loss rate with the preset standard range of pipe loss, and output real-time simulation results.

Preferably, in the above-mentioned method for analyzing pipe loss of a steam heating pipe network, the calculation process of the instantaneous pipe loss rate includes:

Substitute the instantaneous flow data of the current steam supply end and the simulated instantaneous flow data of each steam consumption end into the formula In the process, the instantaneous tube loss rate is obtained by calculation;

Wherein, G is the instantaneous pipe loss rate at that moment, (T ₁ +T ₂ +…+T _n ) is the sum of the simulated instantaneous flow data of each steam-consuming end at that moment, and _TS is the instantaneous flow data of the steam-supplying end at that moment.

Preferably, in the above-mentioned method for analyzing pipe loss of a steam heating pipe network, the preset pipe loss standard range, comparing the obtained instantaneous pipe loss rate with the preset pipe loss standard range, and outputting the real-time simulation result comprises:

Assume that the current instantaneous pipe loss rate is G0, and the preset pipe loss standard range is (G1, G2);

When G1≤G0≤G2, the real-time simulation results are output for steady-state operation of the heating network;

When G0>G2, the output real-time simulation result is the fluctuating operation of the heating network;

When G0<G1, the real-time simulation result output is a simulation system abnormality.

Preferably, in the above-mentioned method for analyzing pipe loss of a steam heating pipe network, the real-time simulation result is tested by calculating the deviation between the real-time data and the real-time simulation result, and the current real-time simulation result is corrected according to the test result, and sent to the pipe loss simulation model for display, including:

Step 1: Obtain the actual instantaneous flow data, actual temperature data and actual pressure data of each steam-using end;

Step 2: Substitute the actual data and simulation data of each steam-using end into the deviation calculation formula in sequence according to the pipeline direction information to obtain the flow deviation value, temperature deviation value and pressure deviation value;

The calculation formula of the flow deviation value is: Where Z _T is the flow deviation value, _Ta is the actual instantaneous flow data of the pipeline section, and _Tn is the simulated instantaneous flow data of the pipeline section;

The calculation formula of the temperature deviation value is: Wherein, Z _W is the temperature deviation value, _Wa is the actual temperature data of the pipeline section, and _Wn is the simulated temperature data of the pipeline section;

The calculation formula of the pressure deviation value is: Where Z _P is the pressure deviation value, _Pa is the actual pressure data of the pipeline section, and _Pn is the simulated pressure data of the pipeline section;

Step three, verify according to the deviation value; preset flow cut-off standard, temperature cut-off standard and pressure cut-off standard. When the flow deviation value meets the preset flow cut-off standard, and the temperature cut-off standard and the pressure cut-off standard both meet the temperature cut-off standard and the pressure cut-off standard, it indicates that the cut-off valve of the pipeline section is in a closed state at the current moment, and a cut-off instruction is generated; when the flow deviation value does not meet the preset flow cut-off standard, it indicates that the pipeline section is in a normal state, and a normal instruction is generated;

Step 4: Send the instructions generated in the verification process in combination with the output real-time simulation results to the pipe loss simulation model; when a cut-off instruction is generated, the generated real-time simulation results are changed to the heating network fluctuation operation, and the position information of the section of the pipeline for generating the cut-off instruction is obtained;

Step 5: Substitute the position information of the section of pipeline for generating the cut-off instruction into the pipe loss simulation model, and display the changed real-time simulation results together.

Preferably, in the above-mentioned method for analyzing pipe loss in a steam heating pipe network, the preset flow cutoff standard is -100%, and the temperature cutoff standard and the pressure cutoff standard are set according to the average heat transfer coefficient and the average resistance coefficient of the pipeline.

It can be seen from the above technical solutions that compared with the prior art, the present application has the following beneficial effects:

The present invention discloses a method for analyzing pipe loss of a steam heating pipe network, comprising: establishing a pipe loss simulation model based on the geographical information of the pipe network; substituting historical data into the pipe loss simulation model, and correcting the pipe loss simulation model according to the generated historical simulation results; inputting real-time data into the pipe loss simulation model to generate real-time simulation results; checking the real-time simulation results by calculating the deviation between the real-time data and the real-time simulation results, and correcting the current real-time simulation results according to the test results, and sending them to the pipe loss simulation model for display; the present invention adopts geographical information and pipe network characteristic parameters to establish a pipeline operation simulation model, realizes real-time monitoring and analysis of pipe losses through hard measurement of actual data and soft measurement of simulation data, and can accurately display the location of abnormal pipelines, assist personnel in monitoring, and avoid the influence of human operation on the pipe loss analysis process of the steam heating pipe network.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG. 1 is a flow chart of the method of the present invention.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

In one embodiment, referring to FIG1 , a method for analyzing pipe loss of a steam heating pipe network includes:

Step 1: Establish a pipe loss simulation model based on the pipe network geographic information;

Step 2: Substitute historical data into the pipe loss simulation model, and modify the pipe loss simulation model according to the generated historical simulation results;

Step 3: input the real-time data into the pipe loss simulation model to generate real-time simulation results;

Step 4: Check the real-time simulation result by calculating the deviation between the real-time data and the real-time simulation result, and correct the current real-time simulation result according to the check result, and send it to the pipe loss simulation model for display.

The principle of the above embodiment is: using the geographical features of the pipeline network to establish a model and link it with the map; using historical data for training, and combining the "hard measurement" of remote transmission instruments and the "soft measurement" of simulation calculations to achieve full-domain monitoring of steam parameters (flow, temperature, pressure) in the entire network, calculate the pipe loss rate based on the monitoring results, and determine the location of the abnormal pipeline through the actual data verification process.

The beneficial effects of the above-mentioned embodiment are: achieving full-area monitoring of steam parameters in the entire network, accurately calculating the pipe loss rate, and determining the location of abnormal pipelines.

In order to further optimize the above scheme, please refer to FIG1 , a method for analyzing pipe loss of a steam heating pipe network, and establishing a pipe loss simulation model based on the geographical information of the pipe network includes the following steps:

Step 1: Establish a pipe loss simulation model based on the terrain information of the heating pipe network; the terrain information includes the heat source location, user location, pipeline direction information, pipeline length, pipeline diameter, valve location, steam trap location, and compensator location;

Step 2: Calculate the ideal pipeline coefficient according to the terrain information, and insert the ideal pipeline coefficient into the corresponding position of the pipe loss simulation model;

Step three: insert the pipe loss simulation model into the map based on the location information of the heating pipe network and display it through a display device.

It should be noted that the ideal pipeline coefficient includes: an ideal resistance coefficient and an ideal heat transfer coefficient; the resistance coefficient is determined according to the direction, inflection point, material and diameter of the pipeline, and the heat transfer coefficient is determined according to the length, diameter and material of the pipeline, and the calculation method is the existing technical means; this embodiment realizes the basic limitation of the geographical and characteristic parameters of the pipe loss simulation model, and provides a direction for the subsequent addition of pipelines.

In order to further optimize the above scheme, please refer to FIG1 , a method for analyzing pipe loss of a steam heating pipe network, substituting historical data into a pipe loss simulation model, and correcting the pipe loss simulation model according to the generated historical simulation results includes the following steps:

Step 1, obtaining several historical resistance coefficients and historical heat transfer coefficients of each section of the pipeline under normal conditions;

Step 2: Calculate the average values of several historical resistance coefficients and ideal resistance coefficients of each section of the pipeline in turn, generate an average resistance coefficient, and replace the ideal resistance coefficient with the average resistance coefficient and insert it into the pipe loss simulation model; calculate the average values of several historical heat transfer coefficients and ideal heat transfer coefficients of each section of the pipeline in turn, generate an average heat transfer coefficient, and replace the ideal heat transfer coefficient with the average heat transfer coefficient and insert it into the pipe loss simulation model;

Step 3, obtaining multiple sets of historical measured operation data of each section of the pipeline, each set of historical measured operation data includes instantaneous flow data, temperature data, and pressure data of the steam supply end and several steam consumption ends;

Step 4: Substitute the measured operation data of the historical steam supply end into the pipe loss simulation model in sequence, perform simulation calculations based on the average resistance coefficient and average heat transfer coefficient of each section of the pipeline, and obtain the simulated instantaneous flow data, simulated temperature data, and simulated pressure data of several steam consumption ends;

Step 5, the simulated instantaneous flow data, simulated temperature data and simulated pressure data of several steam-using ends are respectively compared with the measured operation data of the historical steam-using ends, and the flow difference, temperature difference and pressure difference of each section of the pipeline are calculated;

Step six, adjust the average resistance coefficient and average heat transfer coefficient corresponding to each section of the pipeline according to the flow differences, temperature differences and pressure differences, and output the corrected pipe loss simulation model.

It should be noted that adjusting the average resistance coefficient and the average heat transfer coefficient corresponding to each section of the pipeline according to the flow differences, temperature differences and pressure differences also includes a preset deviation range. When the flow difference, temperature difference and pressure difference are within the deviation range, there is no need to adjust the average resistance coefficient and the average heat transfer coefficient; the preset deviation range is artificially limited according to the actual operating status of the pipeline network; this embodiment realizes the correction of the pipe loss simulation model to make it more in line with the actual operating status.

In order to further optimize the above scheme, please refer to Figure 1, a method for analyzing pipe loss of a steam heating pipe network, inputting real-time data into a pipe loss simulation model, and generating real-time simulation results including:

Step 1: Obtain the instantaneous flow data of the current steam supply end and substitute it into the modified pipe loss simulation model; obtain the simulated instantaneous flow data, simulated temperature data and simulated pressure data of each steam consumption end through calculation;

Step 2: Calculate the instantaneous pipe loss rate;

Step three: preset a standard range of pipe loss, compare the obtained instantaneous pipe loss rate with the preset standard range of pipe loss, and output real-time simulation results.

It should be noted that the calculation process of the instantaneous pipe loss rate includes substituting the instantaneous flow data of the current steam supply end and the simulated instantaneous flow data of each steam consumption end into the formula In the example, the instantaneous pipe loss rate is obtained by calculation; wherein G is the instantaneous pipe loss rate at that moment, (T ₁ +T ₂ +…+T _n ) is the sum of the simulated instantaneous flow data of each steam-using end at that moment, and _TS is the instantaneous flow data of the steam-supplying end at that moment;

The process of presetting the pipe loss standard range, comparing the instantaneous pipe loss rate obtained with the preset pipe loss standard range, and outputting the real-time simulation results includes:

Assume that the current instantaneous pipe loss rate is G0, and the preset pipe loss standard range is (G1, G2);

When G1≤G0≤G2, the output real-time simulation result is the steady-state operation of the heating network;

When G0>G2, the output real-time simulation result is the fluctuating operation of the heating network;

When G0<G1, the real-time simulation result output is simulation system abnormality;

This embodiment achieves the instantaneous flow data of each steam-consuming end obtained by simulating the instantaneous flow data of the steam supply end, thereby achieving accurate calculation of the instantaneous pipe loss rate.

In order to further optimize the above scheme, please refer to Figure 1, a method for analyzing pipe loss of a steam heating pipe network, by calculating the deviation between real-time data and real-time simulation results, checking the real-time simulation results, and correcting the current real-time simulation results according to the test results, and sending them to the pipe loss simulation model for display, including:

Step 1: Obtain the actual instantaneous flow data, actual temperature data and actual pressure data of each steam-using end;

Step 2: Substitute the actual data and simulation data of each steam-using end into the deviation calculation formula in sequence according to the pipeline direction information to obtain the flow deviation value, temperature deviation value and pressure deviation value;

The calculation formula of flow deviation value is: Where Z _T is the flow deviation value, _Ta is the actual instantaneous flow data of the pipeline section, and _Tn is the simulated instantaneous flow data of the pipeline section;

The calculation formula for temperature deviation is: Wherein, Z _W is the temperature deviation value, _Wa is the actual temperature data of the pipeline section, and _Wn is the simulated temperature data of the pipeline section;

The calculation formula of pressure deviation is: Where Z _P is the pressure deviation value, _Pa is the actual pressure data of the pipeline section, and _Pn is the simulated pressure data of the pipeline section;

Step three, verify according to the deviation value; preset flow cut-off standard, temperature cut-off standard and pressure cut-off standard. When the flow deviation value meets the preset flow cut-off standard, and the temperature cut-off standard and the pressure cut-off standard both meet the temperature cut-off standard and the pressure cut-off standard, it indicates that the cut-off valve of the pipeline section is in a closed state at the current moment, and a cut-off instruction is generated; when the flow deviation value does not meet the preset flow cut-off standard, it indicates that the pipeline section is in a normal state, and a normal instruction is generated;

Step 4: Send the instructions generated by the verification process and the output real-time simulation results to the pipe loss simulation model; when a cut-off instruction is generated, the generated real-time simulation results are changed to the heating network fluctuation operation, and the position information of the section of the pipeline that generates the cut-off instruction is obtained;

Step 5: Substitute the position information of the pipeline section that generates the cut-off instruction into the pipe loss simulation model, and display the changed real-time simulation results together.

It should be noted that the preset flow cutoff standard is -100%, and the temperature cutoff standard and pressure cutoff standard are set according to the average heat transfer coefficient and the average resistance coefficient of the pipeline; when the stop valve is manually closed, the actual instantaneous flow value of the corresponding pipeline drops to 0, so the preset flow cutoff standard is -100%; when the stop valve is manually closed, the temperature deviation value of the cutoff pipeline still meets the standard state, and the pressure deviation increases due to the truncation of the pipeline, so this change process is used to determine the position information of the section of the pipeline that generates the cutoff instruction, thereby achieving accurate positioning of the pipeline affected by human factors.

It should be noted that the system provided in the above embodiment is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be decomposed or combined. For example, the modules in the above embodiments can be combined into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not regarded as improper limitations of the present invention.

The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus/device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus/device.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations in the above description of the disclosed embodiments, so that professionals and technicians in the field can implement or use the present invention. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims (4)

1. A method for analyzing pipe loss of a steam heating pipe network, comprising: Step 1: Establish a pipe loss simulation model based on the pipe network geographic information; Step 2: Substituting historical data into the pipe loss simulation model, and correcting the pipe loss simulation model according to the generated historical simulation results; Step 3, inputting the real-time data into the pipe loss simulation model to generate real-time simulation results; Step 4: Check the real-time simulation result by calculating the deviation between the real-time data and the real-time simulation result, and correct the current real-time simulation result according to the check result, and send it to the pipe loss simulation model for display; The establishment of a pipe loss simulation model based on pipe network geographic information comprises the following steps: Step 1: Establishing the pipe loss simulation model based on the terrain information of the heating pipe network; the terrain information includes the heat source location, user location, pipeline direction information, pipeline length, pipeline diameter, valve location, steam trap location, and compensator location; Step 2: calculating an ideal pipeline coefficient according to the terrain information, and inserting the ideal pipeline coefficient into a corresponding position of the pipe loss simulation model; Step three, inserting the pipe loss simulation model into the map based on the location information of the heating pipe network, and displaying it through a display device; The ideal pipeline coefficients include: ideal resistance coefficient and ideal heat transfer coefficient; Substituting historical data into the pipe loss simulation model and correcting the pipe loss simulation model according to the generated historical simulation results comprises the following steps: Step 1, obtaining several historical resistance coefficients and historical heat transfer coefficients of each section of the pipeline under normal conditions; Step 2: Calculate the average values of several historical resistance coefficients and ideal resistance coefficients of each section of the pipeline in turn, generate an average resistance coefficient, and replace the ideal resistance coefficient with the average resistance coefficient and insert it into the pipe loss simulation model; calculate the average values of several historical heat transfer coefficients and ideal heat transfer coefficients of each section of the pipeline in turn, generate an average heat transfer coefficient, and replace the ideal heat transfer coefficient with the average heat transfer coefficient and insert it into the pipe loss simulation model; Step 3, obtaining multiple groups of historical measured operation data of each section of the pipeline, each group of the historical measured operation data includes instantaneous flow data, temperature data, and pressure data of the steam supply end and several steam consumption ends; Step 4: Substitute the measured operation data of the historical steam supply end into the pipe loss simulation model in sequence, perform simulation calculations based on the average resistance coefficient and average heat transfer coefficient of each section of the pipeline, and obtain simulated instantaneous flow data, simulated temperature data, and simulated pressure data of several steam consumption ends; Step 5, the simulated instantaneous flow data, simulated temperature data and simulated pressure data of several steam-using ends are respectively compared with the measured operation data of the historical steam-using ends, and the flow difference, temperature difference and pressure difference of each section of the pipeline are calculated; Step six, adjusting the average resistance coefficient and the average heat transfer coefficient corresponding to each section of the pipeline according to each flow difference, temperature difference and pressure difference, and outputting the corrected pipe loss simulation model; The adjusting of the average resistance coefficient and the average heat transfer coefficient corresponding to each section of the pipeline according to each flow difference, temperature difference and pressure difference also includes: There is a preset deviation range. When the flow rate difference, temperature difference and pressure difference meet the deviation range, there is no need to adjust the average resistance coefficient and average heat transfer coefficient. Inputting the real-time data into the pipe loss simulation model to generate real-time simulation results includes: Step 1: Obtain the instantaneous flow data of the current steam supply end, and substitute it into the modified pipe loss simulation model; obtain the simulated instantaneous flow data, simulated temperature data and simulated pressure data of each steam consumption end through calculation; Step 2: Calculate the instantaneous pipe loss rate; Step 3: preset a pipe loss standard range, compare the obtained instantaneous pipe loss rate with the preset pipe loss standard range, and output real-time simulation results; The method of calculating the deviation between the real-time data and the real-time simulation result, inspecting the real-time simulation result, and correcting the current real-time simulation result according to the inspection result, and sending the result to the pipe loss simulation model for display includes: Step 1: Obtain the actual instantaneous flow data, actual temperature data and actual pressure data of each steam-using end; Step 2: Substitute the actual data and simulation data of each steam-using end into the deviation calculation formula in sequence according to the pipeline direction information to obtain the flow deviation value, temperature deviation value and pressure deviation value; The calculation formula of the flow deviation value is: ;in, is the flow deviation value, is the actual instantaneous flow data of this section of pipeline, The simulated instantaneous flow data of this section of pipeline; The calculation formula of the temperature deviation value is: ;in, is the temperature deviation value, is the actual temperature data of the pipeline section, is the simulated temperature data of this section of pipeline; The calculation formula of the pressure deviation value is: ;in, is the pressure deviation value, is the actual pressure data of this section of pipeline, is the simulated pressure data of this section of pipeline; Step three, verify according to the deviation value; preset flow cut-off standard, temperature cut-off standard and pressure cut-off standard. When the flow deviation value meets the preset flow cut-off standard, and the temperature cut-off standard and the pressure cut-off standard both meet the temperature cut-off standard and the pressure cut-off standard, it indicates that the cut-off valve of the pipeline section is in a closed state at the current moment, and a cut-off instruction is generated; when the flow deviation value does not meet the preset flow cut-off standard, it indicates that the pipeline section is in a normal state, and a normal instruction is generated; Step 4: Send the instructions generated in the verification process in combination with the output real-time simulation results to the pipe loss simulation model; when a cut-off instruction is generated, the generated real-time simulation results are changed to the heating network fluctuation operation, and the position information of the section of the pipeline for generating the cut-off instruction is obtained; Step 5: Substitute the position information of the section of pipeline for generating the cut-off instruction into the pipe loss simulation model, and display the changed real-time simulation results together. 2. A method for analyzing pipe loss of a steam heating pipe network according to claim 1, characterized in that the calculation process of the instantaneous pipe loss rate comprises: Substitute the instantaneous flow data of the current steam supply end and the simulated instantaneous flow data of each steam consumption end into the formula In the process, the instantaneous tube loss rate is obtained by calculation; in, is the instantaneous tube loss rate, is the sum of the simulated instantaneous flow data of each steam-using end at that moment, It is the instantaneous flow data at the steam supply end at that moment. 3. A method for analyzing pipe loss of a steam heating pipe network according to claim 2, characterized in that the preset pipe loss standard range, the instantaneous pipe loss rate obtained is compared with the preset pipe loss standard range, and the process of outputting the real-time simulation result comprises: Assume that the current instantaneous pipe loss rate is G0, and the preset pipe loss standard range is (G1, G2); When G1≤G0≤G2, the output real-time simulation result is the steady-state operation of the heating network; When G0>G2, the output real-time simulation result is the fluctuating operation of the heating network; When G0<G1, the real-time simulation result output is a simulation system abnormality. 4. A method for analyzing pipe loss of a steam heating pipe network according to claim 1, characterized in that the preset flow cutoff standard is -100%, and the temperature cutoff standard and the pressure cutoff standard are set according to the average heat transfer coefficient and the average resistance coefficient of the pipeline.