Flue expansion design method and device, electronic equipment and storage medium

By determining the operating conditions in the flue system, calculating the target expansion amount, designing reinforcement ribs and expansion joints, and carrying out guide design and limit device design, the problem that the existing technology cannot meet the three-dimensional expansion requirements of the flue is achieved, and safety is achieved Reliable flue system design to meet environmental protection and industrial production needs.

CN119442695APending Publication Date: 2025-02-14INNER MONGOLIA HUANENG THERMOELECTRIC CO LTD WUHAI POWER PLANT
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Patent Information

Application Number
CN202411717867.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

The existing flue expansion design method cannot meet the three-dimensional expansion requirements of the flue in actual operation, and fails to fully consider factors such as temperature changes, flue gas composition and flue gas flow rate, resulting in a large deviation from the actual demand, which has a large deviation from the calculation results. Safety hazards.

Method used

By determining the operating conditions of the flue system, calculating the target expansion amount based on the system parameters, designing reinforcement ribs and determining expansion joints, and performing expansion guide design and limit device design to form a comprehensive and feasible flue expansion design plan.

Benefits of technology

It meets the three-dimensional expansion needs of the flue system, ensures that the expansion joints can withstand the maximum thermal expansion load, solves safety hazards, and meets the ever-changing environmental protection emission requirements and industrial production needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the flue expansion design method and device, the electronic equipment and the storage medium, the operation working condition of a flue system is determined, and the target expansion amount is calculated according to the system parameters of the operation working condition; reinforcing ribs are designed according to the system parameters, target reinforcing ribs are obtained, and a target expansion joint is determined according to the target expansion amount; the target expansion joint meets a preset expansion load condition; carrying out expansion guide design on the flue system according to the target expansion amount to obtain target expansion guide, and carrying out limiting device design on the flue system according to the target expansion amount to obtain a target limiting device; and according to the preset installation positions of the target reinforcing rib, the target expansion joint, the target expansion guide, the target limiting device and the flue system, scheme design treatment is conducted, and a design scheme is obtained. According to the embodiment of the invention, the expansion amount and the reinforcing ribs of the flue system are determined, and the expansion joint, the expansion guide and the limiting device are determined according to the expansion amount, so that the continuously changing environment-friendly emission requirements and industrial production requirements can be met.
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Description

Technical Field

[0001] The present disclosure relates to the technical field of flue gas treatment, and in particular to a design method and device for flue expansion, electronic equipment and storage medium. Background Art

[0002] In industrial production facilities such as thermal power plants and boiler rooms, the flue system of flue gas bypass is a key component, and its main function is to control and regulate the flow of flue gas under specific conditions. When designing the existing flue gas bypass system, factors such as the flow rate, temperature, pressure and corrosiveness of the flue gas often need to be considered. However, the existing design methods have the following shortcomings when dealing with the problem of flue expansion:

[0003] Existing flue expansion design methods often only consider one-dimensional or two-dimensional expansion, which cannot meet the three-dimensional expansion requirements of the flue in actual operation. When calculating the flue expansion, factors such as temperature changes, flue gas composition and flue gas flow rate under different working conditions are not fully considered, resulting in a large deviation between the calculation results and actual needs. When subjected to the maximum thermal expansion load, there are safety hazards, which may cause damage to the flue structure. When dealing with complex working conditions, there is a lack of flexibility and adaptability, making it difficult to meet the ever-changing environmental emission requirements and industrial production needs.

[0004] Therefore, how to solve the shortcomings of existing design methods in dealing with flue expansion is a problem that needs to be solved urgently. Summary of the invention

[0005] The present disclosure provides a design method and device for flue expansion, an electronic device and a storage medium, the main purpose of which is to solve the problem that the existing design method is insufficient in dealing with flue expansion.

[0006] According to a first aspect of the present disclosure, a design method for flue expansion is provided, comprising:

[0007] Determine the operating condition of the flue system, and calculate the target expansion amount corresponding to each operating condition according to the system parameters of each operating condition, wherein the target expansion amount is used to represent the three-dimensional expansion demand of the flue system, and the system parameters at least include the flue gas flow rate, flue gas temperature and flue gas composition in the flue system;

[0008] Designing reinforcement ribs according to the system parameters to obtain target reinforcement ribs, and determining a target expansion joint of the flue system according to the target expansion amount; wherein the target expansion joint meets a preset expansion load condition;

[0009] Designing an expansion guide for the flue system according to the target expansion amount to obtain a target expansion guide, and designing a limit device for the flue system according to the target expansion amount to obtain a target limit device;

[0010] A design scheme is designed based on the target reinforcement rib, the target expansion joint, the target expansion guide, the target limit device and the preset installation position of the flue system to obtain a design scheme for flue expansion.

[0011] Optionally, the preset installation position of the flue system includes:

[0012] In the flue system, the target reinforcement rib is installed at a first preset position; wherein the first preset position is a stress concentration area in the flue system, and the stress concentration area at least includes a variable diameter and a bend pipe of the flue system;

[0013] In the flue system, the target expansion joint is installed to a second preset position; wherein the second preset position is an expansion displacement area of ​​the flue system, and the expansion displacement area at least includes a connection point of the flue system;

[0014] In the flue system, the target expansion guide is installed at a third preset position; wherein the third preset position at least includes an installation area of ​​the target expansion joint in the flue system;

[0015] In the flue system, the target limiting device is installed to a fourth preset position, wherein the fourth preset position at least includes an end point of the flue system.

[0016] Optionally, the designing the reinforcement rib according to the system parameters to obtain the target reinforcement rib includes:

[0017] The reinforcement ribs are designed through the flue gas flow field and the flue gas flow velocity in the system parameters to obtain target reinforcement ribs; wherein the target reinforcement ribs are at least used to meet the preset deformation amount, and the preset deformation amount is the predetermined cold and hot alternating deformation amount of the flue system.

[0018] Optionally, the calculating the target expansion amount corresponding to each of the operating conditions includes:

[0019] Determine the temperature difference between the inside and outside of the flue of the flue system according to the design temperature, the ambient temperature and the flue gas temperature in the system parameters;

[0020] Determine the thermal expansion coefficient of the flue system according to the pipeline material information in the system parameters; wherein the pipeline material information is the material information of the pipeline of the flue system;

[0021] The thermal expansion amount is calculated according to the system parameters, the temperature difference between the inside and outside of the flue, and the thermal expansion coefficient to obtain the target expansion amount.

[0022] Optionally, determining a target expansion joint of the flue system according to the target expansion amount includes:

[0023] Determining the cumulative expansion amount of the flue system according to the target expansion amount; wherein the cumulative expansion amount is the total amount of expansion between a fixed point position in the flue system and the second preset position, and the fixed point position is a support point position of the flue system that does not move during expansion and contraction;

[0024] Determining the displacement capacity of the expansion joint according to the accumulated expansion amount; wherein the displacement capacity is greater than the accumulated expansion amount;

[0025] Determining the size of the expansion joint according to the flue size of the flue system, wherein the size of the expansion joint matches the size of the flue;

[0026] The expansion joint is designed according to the displacement capacity, the expansion joint size and the preset expansion joint conditions to obtain the target expansion joint.

[0027] Optionally, performing expansion guidance design on the flue system according to the target expansion amount to obtain the target expansion guidance includes:

[0028] Determine the expansion guide type according to the structural characteristics of the flue system; wherein the expansion guide type includes at least single-direction guide, multi-direction guide and combined guide;

[0029] The expansion guide design is performed according to the thermal expansion information of the flue system contained in the system parameters, the target expansion amount and the expansion guide type to obtain the target expansion guide; wherein the thermal expansion information at least includes the thermal expansion displacement direction of the flue system.

[0030] Optionally, the design of a limit device for the flue system according to the target expansion amount to obtain the target limit device includes:

[0031] Determining temperature change data of the flue system according to the system parameters, wherein the temperature change data is temperature change data of the flue system during operation;

[0032] Determining the type of the limiting device of the flue system according to the target expansion amount, wherein the type of the limiting device at least includes a fixed bracket, a limiting bracket and a spring bracket;

[0033] A limiting device is designed according to the target expansion amount, the temperature change data, the type of the limiting device and the thermal expansion coefficient of the flue system to obtain the target limiting device.

[0034] According to a second aspect of the present disclosure, there is provided a design device for flue expansion, comprising:

[0035] a calculation unit, used to determine an operating condition of a flue system, and calculate a target expansion amount corresponding to each operating condition according to a system parameter of each operating condition, wherein the target expansion amount is used to represent a three-dimensional expansion demand of the flue system, and the system parameter at least includes a flue gas flow rate, a flue gas temperature, and a flue gas composition in the flue system;

[0036] A first design unit is used to design a reinforcement rib according to the system parameters to obtain a target reinforcement rib;

[0037] A determination unit, configured to determine a target expansion joint of the flue system according to the target expansion amount; wherein the target expansion joint satisfies a preset expansion load condition;

[0038] A second design unit is used to perform expansion guidance design on the flue system according to the target expansion amount to obtain a target expansion guidance;

[0039] A third design unit is used to design a limit device for the flue system according to the target expansion amount to obtain a target limit device;

[0040] The fourth design unit is used to perform scheme design processing according to the target reinforcement rib, the target expansion joint, the target expansion guide, the target limit device and the preset installation position of the flue system to obtain a design scheme for flue expansion.

[0041] Optionally, the first design unit is also used to design reinforcement ribs through the flue gas flow field and the flue gas flow velocity in the system parameters to obtain target reinforcement ribs; wherein the target reinforcement ribs are at least used to meet a preset deformation amount, and the preset deformation amount is a predetermined cold and hot alternating deformation amount of the flue system.

[0042] Optionally, the computing unit includes:

[0043] A determination module, used to determine the temperature difference between the inside and outside of the flue of the flue system according to the design temperature, the ambient temperature and the flue gas temperature in the system parameters;

[0044] The determination module is further used to determine the thermal expansion coefficient of the flue system according to the pipeline material information in the system parameters; wherein the pipeline material information is the material information of the pipeline of the flue system;

[0045] The calculation module is used to calculate the thermal expansion amount according to the system parameters, the temperature difference between the inside and outside of the flue, and the thermal expansion coefficient to obtain the target expansion amount.

[0046] Optionally, the determining unit includes:

[0047] a determination module, configured to determine a cumulative expansion amount of the flue system according to the target expansion amount; wherein the cumulative expansion amount is the total amount of expansion between a fixed point position in the flue system and the second preset position, and the fixed point position is a support point position of the flue system that does not move during expansion and contraction;

[0048] The determination module is further used to determine the displacement capacity of the expansion joint according to the accumulated expansion amount; wherein the displacement capacity is greater than the accumulated expansion amount;

[0049] The determination module is further used to determine the size of the expansion joint according to the flue size of the flue system, wherein the size of the expansion joint matches the size of the flue;

[0050] The design module is used to design the expansion joint according to the displacement capacity, the expansion joint size and the preset expansion joint conditions to obtain the target expansion joint.

[0051] Optionally, the second design unit includes:

[0052] A determination module, used to determine the expansion guide type according to the structural characteristics of the flue system; wherein the expansion guide type at least includes single-direction guide, multi-direction guide and combined guide;

[0053] A design module is used to perform expansion guidance design according to the thermal expansion information of the flue system contained in the system parameters, the target expansion amount and the expansion guidance type to obtain the target expansion guidance; wherein the thermal expansion information at least includes the thermal expansion displacement direction of the flue system.

[0054] Optionally, the third design unit includes:

[0055] A determination module, used for determining temperature change data of the flue system according to the system parameters, wherein the temperature change data is temperature change data of the flue system during operation;

[0056] The determination module is further used to determine the type of the limiting device of the flue system according to the target expansion amount, wherein the type of the limiting device at least includes a fixed bracket, a limiting bracket and a spring bracket;

[0057] The design module is used to design a limit device according to the target expansion amount, the temperature change data, the type of the limit device and the thermal expansion coefficient of the flue system to obtain the target limit device.

[0058] According to a third aspect of the present disclosure, there is provided an electronic device, including:

[0059] at least one processor; and

[0060] a memory communicatively connected to the at least one processor; wherein,

[0061] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method described in the first aspect.

[0062] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable the computer to execute the method described in the first aspect.

[0063] According to a fifth aspect of the present disclosure, a computer program product is provided, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements the method as described in the first aspect above.

[0064] The present disclosure provides a design method and device for flue expansion, an electronic device and a storage medium, which determine the operating conditions of a flue system, and calculate the target expansion amount corresponding to each operating condition according to the system parameters of each operating condition, wherein the target expansion amount is used to represent the three-dimensional expansion demand of the flue system, and the system parameters at least include the flue gas flow rate, the flue gas temperature and the flue gas composition in the flue system; reinforcing ribs are designed according to the system parameters to obtain target reinforcing ribs, and a target expansion joint of the flue system is determined according to the target expansion amount; wherein the target expansion joint satisfies a preset expansion load condition; an expansion guide is designed for the flue system according to the target expansion amount to obtain a target expansion guide, and a limit device is designed for the flue system according to the target expansion amount to obtain a target limit device; a scheme design process is performed according to the target reinforcing ribs, the target expansion joints, the target expansion guides, the target limit devices and the preset installation positions of the flue system to obtain a design scheme for flue expansion. Compared with the related art, the embodiment of the present disclosure determines the expansion amount of the flue system and the reinforcement ribs according to factors such as temperature changes, flue gas composition and flue gas flow rate, and determines the expansion joints, expansion guides and limit devices according to the expansion amount of the flue system. This can meet the three-dimensional expansion requirements of the flue in actual operation and ensure that the expansion joints can withstand the maximum thermal expansion load. It solves the safety hazards of the flue system while meeting the ever-changing environmental emission requirements and industrial production needs.

[0065] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0067] Figure 1 A schematic flow chart of a flue expansion design method provided in an embodiment of the present disclosure;

[0068] Figure 2 A schematic diagram of the structure of another design device for flue expansion provided by an embodiment of the present disclosure;

[0069] Figure 3 A schematic diagram of the structure of a design device for flue expansion provided by an embodiment of the present disclosure;

[0070] Figure 4 A schematic block diagram of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0071] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0072] The following describes the design method and device for flue expansion, electronic equipment and storage medium of the embodiments of the present disclosure with reference to the accompanying drawings.

[0073] Figure 1 A schematic flow chart of a flue expansion design method provided in an embodiment of the present disclosure.

[0074] like Figure 1 As shown, the method comprises the following steps:

[0075] Step 101, determine the operating conditions of the flue system, and calculate the target expansion amount corresponding to each operating condition according to the system parameters of each operating condition, wherein the target expansion amount is used to represent the three-dimensional expansion demand of the flue system, and the system parameters include at least the flue gas flow rate, flue gas temperature and flue gas composition in the flue system.

[0076] In the disclosed embodiment, it is necessary to calculate the expansion amount under various working conditions, and the design should satisfy the bypass flue expansion to meet the three-dimensional expansion requirements under various working conditions.

[0077] When calculating the target expansion, it is first necessary to identify and define all the operating conditions that the flue system may encounter. Operating conditions may include but are not limited to system startup, normal operation, load changes, shutdown, etc. Then, for each specific operating condition, it is necessary to calculate the target expansion of the flue system under that condition based on a series of system parameters. The calculation of the target expansion is to ensure that the flue system can adapt to the expansion requirements under different operating conditions when it is designed.

[0078] The target expansion is the expected expansion displacement of the flue system under specific operating conditions, including the expansion in three dimensions (vertical, horizontal and axial). The three-dimensional expansion requirement means that the calculation must not only consider the expansion of the flue in a single direction, but also its comprehensive expansion in multiple directions to ensure that the design of the flue system can adapt to complex three-dimensional expansion patterns.

[0079] The system parameters are specific parameters of the flue system obtained, including but not limited to: Design temperature: the temperature of the flue system under normal operation and extreme conditions. Material properties: thermal expansion coefficient, elastic modulus, yield strength, etc. of the flue material. Flue size: geometric dimensions of the flue such as length, width, and height. Ambient temperature: the average temperature of the environment where the flue system is located. Flue gas flow rate: the average flow rate of flue gas in the flue. Heat load: the heat load borne by the flue system, including radiation and convection heat loads. Flue structure: the supporting structure, connection method, fixing points, etc. of the flue. Operation mode: different operation modes of the flue system, such as startup, normal operation, shutdown, etc.

[0080] In the design of the flue system, different operating conditions must be considered, and the three-dimensional expansion requirements of the flue system must be calculated based on the system parameters of each operating condition (flue gas flow rate, flue gas temperature, flue gas composition, etc.), which can ensure that the flue system can maintain structural integrity and functionality under various operating conditions.

[0081] Step 102, designing reinforcement ribs according to the system parameters to obtain target reinforcement ribs, and determining a target expansion joint of the flue system according to the target expansion amount; wherein the target expansion joint meets a preset expansion load condition.

[0082] In the disclosed embodiment, when designing the flue system, it is necessary to design the reinforcement ribs (also called reinforcing ribs or supporting ribs) according to known system parameters (such as flue gas flow rate, flue gas temperature, flue gas composition, etc.). The function of the reinforcement ribs is to enhance the strength and stability of the flue structure to withstand various loads during operation. The target reinforcement ribs refer to the specific specifications and layout of the reinforcement ribs designed according to the calculation and analysis results, and the reinforcement ribs can meet the structural strength requirements of the flue system under specific working conditions.

[0083] At the same time, the location and type of expansion joints in the flue system are determined based on the calculated target expansion. An expansion joint is a specially designed component used to absorb the thermal expansion displacement of the flue due to temperature changes. The target expansion joint refers to an expansion joint selected or designed based on the expected expansion amount, which can ensure that the flue will not generate excessive stress during thermal expansion, thereby protecting the flue structure from damage.

[0084] The target expansion joint must meet certain performance standards, namely the preset expansion load conditions, to ensure that the expansion amount of the target expansion joint meets the maximum thermal expansion load requirement. The preset expansion load conditions are a custom set condition, which refers to the load range that the expansion joint should be able to withstand, which has been set before design and construction. The preset expansion load conditions can ensure that the expansion joint can work reliably in actual operation. The preset expansion load conditions include but are not limited to: the displacement capacity, durability, fatigue resistance, pressure bearing capacity, etc. of the expansion joint. Specifically, the embodiments of the present disclosure do not limit the preset expansion load conditions.

[0085] Step 103, designing an expansion guide for the flue system according to the target expansion amount to obtain a target expansion guide, and designing a limit device for the flue system according to the target expansion amount to obtain a target limit device.

[0086] In the disclosed embodiment, the expansion guide design refers to the need to design a structure or system according to a pre-calculated target expansion amount when designing a flue system to guide the displacement of the flue during thermal expansion, and the target expansion guide refers to a guide mechanism implemented by design, which can ensure that the flue moves in a predetermined direction and path during thermal expansion, thereby avoiding structural stress concentration or damage caused by uneven expansion. The expansion guide design includes, but is not limited to, components such as guide plates, guide grooves, and sliding brackets, which allow the flue to expand freely in a specific direction while restricting movement in other directions.

[0087] The limit device design refers to the design of a limit device to limit the total displacement of the flue during thermal expansion to prevent excessive expansion. The target limit device refers to a device designed according to the target expansion of the flue system, which can play a limiting role when the flue expansion reaches a preset limit to prevent further displacement. The limit device includes but is not limited to: limit blocks, limit bolts, elastic elements, etc., which can provide resistance when the flue expands to a certain extent, thereby protecting the flue system from excessive expansion.

[0088] When designing flue expansion, considering how to guide thermal expansion (through expansion guide design) and how to limit thermal expansion (through limit device design) can ensure that the flue system can expand freely when subjected to heat load but will not exceed the safe displacement range, thereby ensuring the stability and safety of the flue system.

[0089] Step 104, performing scheme design processing according to the target reinforcement rib, the target expansion joint, the target expansion guide, the target limit device and the preset installation position of the flue system to obtain a design scheme for flue expansion.

[0090] In the disclosed embodiment, the design of flue expansion is a systematic project, which requires combining multiple design elements to form a comprehensive and feasible design scheme, namely, the design scheme of flue expansion. The design scheme of flue expansion should not only consider the design of individual components, but also their interaction and influence in the overall system, and how to implement the design in the actual installation location. The final design scheme of flue expansion will provide detailed guidance and guarantee for the construction and operation of the flue system.

[0091] The present disclosure provides a design method for flue expansion, which determines the operating conditions of the flue system, and calculates the target expansion amount corresponding to each operating condition according to the system parameters of each operating condition, wherein the target expansion amount is used to represent the three-dimensional expansion demand of the flue system, and the system parameters at least include the flue gas flow rate, flue gas temperature and flue gas composition in the flue system; reinforcing ribs are designed according to the system parameters to obtain target reinforcing ribs, and a target expansion joint of the flue system is determined according to the target expansion amount; wherein the target expansion joint meets a preset expansion load condition; an expansion guide is designed for the flue system according to the target expansion amount to obtain a target expansion guide, and a limit device is designed for the flue system according to the target expansion amount to obtain a target limit device; a scheme design process is performed according to the target reinforcing ribs, the target expansion joints, the target expansion guides, the target limit devices and the preset installation positions of the flue system to obtain a design scheme for flue expansion. Compared with the related art, the embodiment of the present disclosure determines the expansion amount of the flue system and the reinforcement ribs according to factors such as temperature changes, flue gas composition and flue gas flow rate, and determines the expansion joints, expansion guides and limit devices according to the expansion amount of the flue system. This can meet the three-dimensional expansion requirements of the flue in actual operation and ensure that the expansion joints can withstand the maximum thermal expansion load. It solves the safety hazards of the flue system while meeting the ever-changing environmental emission requirements and industrial production needs.

[0092] In an implementable manner of the embodiment of the present disclosure, the preset installation position of the flue system includes but is not limited to: in the flue system, the target reinforcement rib is installed to a first preset position; wherein, the first preset position is a stress concentration area in the flue system, and the stress concentration area at least includes a reducer and a bend of the flue system; in the flue system, the target expansion joint is installed to a second preset position; wherein, the second preset position is an expansion displacement area of ​​the flue system, and the expansion displacement area at least includes a connection point of the flue system; in the flue system, the target expansion guide is installed to a third preset position; wherein, the third preset position at least includes an installation area of ​​the target expansion joint in the flue system; in the flue system, the target limit device is installed to a fourth preset position, wherein, the fourth preset position at least includes an end point of the flue system.

[0093] In the embodiment of the present disclosure, when the target reinforcement rib is installed to the first preset position, the first preset position refers to the stress concentration area in the flue system, such as: elbows, reducers or interfaces, so as to enhance the strength and stability of the stress concentration area of ​​the flue system and prevent damage caused by vibration, thermal expansion or external force.

[0094] When the target expansion joint is installed to the second preset position, the second preset position refers to an area in the flue system that needs to absorb thermal expansion displacement or compensate for relative movement, for example: at the connection point between the flue and the boiler, fan or other equipment, the target expansion joint can relieve the pipeline stress caused by temperature changes.

[0095] When the target expansion guide is installed to the third preset position, the third preset position refers to the two sides of the target expansion joint installed in the flue system, which is used to guide and limit the movement direction of the target expansion joint during thermal expansion, ensuring that the target expansion joint is displaced in the designed direction to avoid adverse effects on other equipment or structures.

[0096] When the target limit device is installed to the fourth preset position, the fourth preset position is usually located at the end of the flue system, i.e., the endpoint of the flue system, and is used to limit the maximum displacement of the flue system in all directions to prevent structural damage due to excessive expansion or vibration.

[0097] In one implementable manner of the embodiment of the present disclosure, the design of reinforcement ribs according to system parameters can also be implemented in but not limited to the following manner: the reinforcement ribs are designed according to the flue gas flow field and the flue gas flow velocity in the system parameters to obtain target reinforcement ribs; wherein the target reinforcement ribs are used to at least meet a preset deformation amount, and the preset deformation amount is a predetermined cold and hot alternating deformation amount of the flue system.

[0098] In one implementable manner of the embodiment of the present disclosure, the calculation of the target expansion amount corresponding to each operating condition can also be implemented in but not limited to the following manner: determining the temperature difference between the inside and outside of the flue of the flue system according to the design temperature, the ambient temperature and the flue gas temperature in the system parameters; determining the thermal expansion coefficient of the flue system according to the pipe material information in the system parameters; wherein the pipe material information is the material information of the pipes of the flue system; and calculating the thermal expansion amount according to the system parameters, the temperature difference between the inside and outside of the flue and the thermal expansion coefficient to obtain the target expansion amount.

[0099] In the disclosed embodiment, when calculating the target expansion amount, the required parameters include at least: Design temperature: the temperature of the flue system under normal operation and extreme conditions. Material properties: thermal expansion coefficient, elastic modulus, yield strength, etc. of the flue material. Flue dimensions: geometric dimensions of the flue such as length, width, and height. Ambient temperature: the average temperature of the environment in which the flue system is located. Flue gas flow rate: the average flow rate of flue gas in the flue. Heat load: the heat load borne by the flue system, including radiation and convection heat loads. Flue structure: the supporting structure, connection method, fixing points, etc. of the flue. Operation mode: different operation modes of the flue system, such as startup, normal operation, shutdown, etc.

[0100] The steps for calculating the target expansion amount include but are not limited to: Operating condition analysis: determine all possible operating conditions of the flue system, including startup, normal operation, shutdown, emergency shutdown, etc. Analyze the temperature variation range under each operating condition. Material parameter collection: refer to the material data manual to obtain the thermal expansion coefficient, elastic modulus and other parameters of the flue material. Temperature difference calculation: calculate the temperature difference between the inside and outside of the flue under each operating condition.

[0101] Calculation of thermal expansion: The target thermal expansion can be calculated using formula (1):

[0102] ΔL=α·L·ΔT Formula (1)

[0103] Among them, ΔL is the thermal expansion amount, that is, the target expansion amount, α is the thermal expansion coefficient, L is the original length of the flue, the system parameters include the original length of the flue, and ΔT is the temperature change, that is, the temperature difference between the inside and outside of the flue.

[0104] In one implementable manner of the disclosed embodiment, with regard to determining a target expansion joint of a flue system according to a target expansion amount, it can also be implemented in the following manner but is not limited to: determining the cumulative expansion amount of the flue system according to the target expansion amount; wherein the cumulative expansion amount is the total amount of expansion between a fixed point position in the flue system and the second preset position, and the fixed point position is a support point position of the flue system that does not displace during expansion and contraction; determining the displacement capacity of the expansion joint according to the cumulative expansion amount; wherein the displacement capacity is greater than the cumulative expansion amount; determining the size of the expansion joint according to the flue size of the flue system, wherein the size of the expansion joint matches the size of the flue; designing the expansion joint according to the displacement capacity, the size of the expansion joint and preset expansion joint conditions to obtain the target expansion joint.

[0105] In the disclosed embodiment, the determination process of the target expansion joint may also be carried out in the following manner but is not limited to the following manner: 1. Determine the installation position of the target expansion joint: Analyze the flue layout: Determine the possible fixed points and moving points in the flue system. Installation position: Select the installation position of the target expansion joint, usually near the straight pipe section or elbow of the flue. 2. Calculate the displacement requirement of the target expansion joint: Cumulative expansion amount: Calculate the cumulative expansion amount of the flue according to the distance from the expansion joint to the fixed point of the target expansion amount. Displacement capacity: Ensure that the displacement capacity of the target expansion joint is greater than or equal to the cumulative expansion amount. 3. Design the size of the target expansion joint: Corrugation size: Design the size and shape of the corrugation according to the displacement requirement. Inner diameter and outer diameter: Determine the inner diameter and outer diameter of the target expansion joint to match the flue size. 4. Select the material and structure of the target expansion joint: Material: Select a material that is resistant to high temperature, corrosion-resistant, and has high mechanical strength. Structure: Design the internal and external structure of the target expansion joint, including flanges, seals, etc. 5. Verify the design of the target expansion joint: Strength verification: Ensure that the target expansion joint can still withstand the pressure and external load of the flue system at maximum displacement. Fatigue life analysis: Analyze the fatigue life of the target expansion joint under cyclic loads.

[0106] In one implementable manner of the embodiment of the present disclosure, the expansion guide design for the flue system according to the target expansion amount can also be implemented in but not limited to the following manner: determine the expansion guide type according to the structural characteristics of the flue system; wherein the expansion guide type includes at least single-direction guidance, multi-direction guidance and combined guidance; perform expansion guide design according to the thermal expansion information of the flue system contained in the system parameters, the target expansion amount and the expansion guide type to obtain the target expansion guide; wherein the thermal expansion information includes at least the thermal expansion displacement direction of the flue system.

[0107] In the embodiments of the present disclosure, the process of expansion guide design can be adopted but not limited to the following methods: 1. Collect data and parameters: determine the design temperature, material properties, geometric dimensions, etc. of the flue system. Obtain the target expansion amount of the flue system under various operating conditions. 2. Analyze the expansion characteristics: analyze the displacement direction and size of the flue system under the action of thermal expansion. Determine in which parts the expansion mainly occurs, such as straight pipe sections, elbows, expansion joints, etc. 3. Determine the expansion guide requirements: According to the expansion amount calculation results (i.e., the target expansion amount), determine the parts that require expansion guidance. Determine the type of target expansion guide device, such as guide plates, guide brackets, sliding brackets, etc. 4. Design the target expansion guide device: Design the layout of the target expansion guide device to ensure that the flue can move along the predetermined path when it expands. Calculate the size and strength of the target expansion guide device to meet the expansion displacement requirements. 5. Calculate and verify: Perform mechanical calculations on the target expansion guide device to ensure that it has sufficient strength and stability when subjected to expansion forces. Use computational fluid dynamics (CFD) or other simulation tools to verify the design of the target expansion guide device.

[0108] In one implementable manner of the embodiment of the present disclosure, the design of the limit device for the flue system according to the target expansion amount can also be implemented in but not limited to the following manner: determining the temperature change data of the flue system according to the system parameters, wherein the temperature change data is the temperature change data of the flue system during operation; determining the type of the limit device of the flue system according to the target expansion amount, wherein the type of the limit device includes at least a fixed bracket, a limit bracket and a spring bracket; designing the limit device according to the target expansion amount, the temperature change data, the type of the limit device and the thermal expansion coefficient of the flue system to obtain the target limit device.

[0109] In the embodiments of the present disclosure, the process of designing the limit device may be implemented in the following manner but is not limited to: Step 1: Select the target limit device type: Select a suitable target limit device type according to the target expansion amount and the characteristics of the flue system. Step 2: Calculate the force on the target limit device: Calculate the force exerted on the target limit device by the flue system when it expands. Ensure that the target limit device can withstand these forces without being damaged. Step 3: Design the target limit device: Design the structure of the target limit device, including the size, shape, material, etc. of the bracket. Determine the installation position of the target limit device so that it can effectively limit the expansion amount. Step 4: Perform mechanical analysis and verification on the target limit device to ensure its safety and reliability. Verification may be performed using methods such as finite element analysis (FEA).

[0110] In summary, the embodiments of the present disclosure can achieve the following technical effects:

[0111] The disclosed embodiment determines the expansion amount and reinforcement ribs of the flue system according to factors such as temperature change, flue gas composition and flue gas flow rate, and determines the expansion joints, expansion guides and limit devices according to the expansion amount of the flue system. This can meet the three-dimensional expansion requirements of the flue in actual operation and ensure that the expansion joints can withstand the maximum thermal expansion load. It solves the safety hazards of the flue system while meeting the ever-changing environmental emission requirements and industrial production needs.

[0112] Corresponding to the above-mentioned flue expansion design method, the present invention also proposes a flue expansion design device. Since the device embodiment of the present invention corresponds to the above-mentioned method embodiment, the details not disclosed in the device embodiment can be referred to the above-mentioned method embodiment, and will not be repeated in the present invention.

[0113] Figure 2 A schematic diagram of a design device for flue expansion provided in an embodiment of the present disclosure is shown in FIG. Figure 2 As shown, including:

[0114] A calculation unit 21 is used to determine the operating condition of the flue system, and calculate the target expansion amount corresponding to each operating condition according to the system parameters of each operating condition, wherein the target expansion amount is used to represent the three-dimensional expansion demand of the flue system, and the system parameters at least include the flue gas flow rate, flue gas temperature and flue gas composition in the flue system;

[0115] A first design unit 22 is used to design a reinforcement rib according to the system parameters to obtain a target reinforcement rib;

[0116] A determination unit 23, configured to determine a target expansion joint of the flue system according to the target expansion amount; wherein the target expansion joint satisfies a preset expansion load condition;

[0117] A second design unit 24 is used to perform expansion guidance design on the flue system according to the target expansion amount to obtain a target expansion guidance;

[0118] A third design unit 25 is used to design a limit device for the flue system according to the target expansion amount to obtain a target limit device;

[0119] The fourth design unit 26 is used to perform scheme design processing according to the target reinforcement rib, the target expansion joint, the target expansion guide, the target limit device and the preset installation position of the flue system to obtain a design scheme for flue expansion.

[0120] The flue expansion design device provided in the present disclosure determines the operating condition of the flue system, and calculates the target expansion amount corresponding to each operating condition according to the system parameters of each operating condition, wherein the target expansion amount is used to represent the three-dimensional expansion demand of the flue system, and the system parameters at least include the flue gas flow rate, flue gas temperature and flue gas composition in the flue system; reinforcement ribs are designed according to the system parameters to obtain target reinforcement ribs, and target expansion joints of the flue system are determined according to the target expansion amount; wherein the target expansion joints meet preset expansion load conditions; expansion guides are designed for the flue system according to the target expansion amount to obtain target expansion guides, and limiting devices are designed for the flue system according to the target expansion amount to obtain target limiting devices; scheme design processing is performed according to the target reinforcement ribs, the target expansion joints, the target expansion guides, the target limiting devices and the preset installation positions of the flue system to obtain a design scheme for flue expansion. Compared with the related art, the embodiment of the present disclosure determines the expansion amount of the flue system and the reinforcement ribs according to factors such as temperature changes, flue gas composition and flue gas flow rate, and determines the expansion joints, expansion guides and limit devices according to the expansion amount of the flue system. This can meet the three-dimensional expansion requirements of the flue in actual operation and ensure that the expansion joints can withstand the maximum thermal expansion load. It solves the safety hazards of the flue system while meeting the ever-changing environmental emission requirements and industrial production needs.

[0121] Furthermore, in a possible implementation of the embodiment of the present disclosure, the first design unit 22 is also used to design reinforcement ribs through the flue gas flow field and the flue gas flow velocity in the system parameters to obtain target reinforcement ribs; wherein the target reinforcement ribs are at least used to meet a preset deformation amount, and the preset deformation amount is a predetermined cold and hot alternating deformation amount of the flue system.

[0122] Furthermore, in a possible implementation of the embodiment of the present disclosure, as Figure 3 As shown, the calculation unit 21 includes:

[0123] A determination module 211 is used to determine the temperature difference between the inside and outside of the flue of the flue system according to the design temperature, the ambient temperature and the flue gas temperature in the system parameters;

[0124] The determination module 211 is further used to determine the thermal expansion coefficient of the flue system according to the pipe material information in the system parameters; wherein the pipe material information is the material information of the pipe of the flue system;

[0125] The calculation module 212 is used to calculate the thermal expansion amount according to the system parameters, the temperature difference between the inside and outside of the flue, and the thermal expansion coefficient to obtain the target expansion amount.

[0126] Furthermore, in a possible implementation of the embodiment of the present disclosure, as Figure 3 As shown, the determining unit 23 includes:

[0127] A determination module 231 is used to determine the cumulative expansion amount of the flue system according to the target expansion amount; wherein the cumulative expansion amount is the total amount of expansion between the fixed point position in the flue system and the second preset position, and the fixed point position is the support point position of the flue system that does not move during the expansion and contraction process;

[0128] The determination module 231 is further used to determine the displacement capacity of the expansion joint according to the accumulated expansion amount; wherein the displacement capacity is greater than the accumulated expansion amount;

[0129] The determination module 231 is further used to determine the size of the expansion joint according to the flue size of the flue system, wherein the size of the expansion joint matches the size of the flue;

[0130] The design module 232 is used to design the expansion joint according to the displacement capacity, the expansion joint size and the preset expansion joint conditions to obtain the target expansion joint.

[0131] Furthermore, in a possible implementation of the embodiment of the present disclosure, as Figure 3 As shown, the second design unit 24 includes:

[0132] A determination module 241 is used to determine an expansion guide type according to the structural characteristics of the flue system; wherein the expansion guide type at least includes a single-direction guide, a multi-direction guide, and a combined guide;

[0133] The design module 242 is used to perform expansion guidance design according to the thermal expansion information of the flue system contained in the system parameters, the target expansion amount and the expansion guidance type to obtain the target expansion guidance; wherein the thermal expansion information at least includes the thermal expansion displacement direction of the flue system.

[0134] Furthermore, in a possible implementation of the embodiment of the present disclosure, as Figure 3 As shown, the third design unit 25 includes:

[0135] A determination module 251 is used to determine the temperature change data of the flue system according to the system parameters, wherein the temperature change data is the temperature change data of the flue system during operation;

[0136] The determination module 251 is further used to determine the type of the limiting device of the flue system according to the target expansion amount, wherein the type of the limiting device at least includes a fixed bracket, a limiting bracket and a spring bracket;

[0137] The design module 252 is used to design a limit device according to the target expansion amount, the temperature change data, the type of the limit device and the thermal expansion coefficient of the flue system to obtain the target limit device.

[0138] It should be noted that the above explanation of the method embodiment is also applicable to the device of the embodiment of the present disclosure, and the principle is the same, which is no longer limited in the embodiment of the present disclosure.

[0139] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

[0140] Figure 4 A schematic block diagram of an example electronic device 400 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0141] like Figure 4 As shown, the device 400 includes a computing unit 401, which can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 402 or a computer program loaded from a storage unit 408 to a RAM (Random Access Memory) 403. In the RAM 403, various programs and data required for the operation of the device 400 can also be stored. The computing unit 401, the ROM 402, and the RAM 403 are connected to each other via a bus 404. An I / O (Input / Output) interface 405 is also connected to the bus 404.

[0142] A number of components in the device 400 are connected to the I / O interface 405, including: an input unit 406, such as a keyboard, a mouse, etc.; an output unit 407, such as various types of displays, speakers, etc.; a storage unit 408, such as a disk, an optical disk, etc.; and a communication unit 409, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 409 allows the device 400 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0143] The computing unit 401 can be various general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 401 include, but are not limited to, CPU (Central Processing Unit), GPU (Graphic Processing Units), various dedicated AI (Artificial Intelligence) computing chips, various computing units running machine learning model algorithms, DSP (Digital Signal Processor), and any appropriate processor, controller, microcontroller, etc. The computing unit 401 performs the various methods and processes described above, such as the design method of flue expansion. For example, in some embodiments, the design method of flue expansion can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 408. In some embodiments, part or all of the computer program can be loaded and / or installed on the device 400 via ROM 402 and / or communication unit 409. When the computer program is loaded into RAM 403 and executed by the computing unit 401, one or more steps of the method described above can be performed. Alternatively, in other embodiments, the computing unit 401 may be configured to execute the aforementioned flue expansion design method in any other appropriate manner (eg, by means of firmware).

[0144] Various embodiments of the systems and techniques described above herein may be implemented in digital electronic circuit systems, integrated circuit systems, FPGAs (Field Programmable Gate Arrays), ASICs (Application-Specific Integrated Circuits), ASSPs (Application Specific Standard Products), SOCs (System On Chips), CPLDs (Complex Programmable Logic Devices), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that may be executed and / or interpreted on a programmable system including at least one programmable processor that may be a special purpose or general purpose programmable processor that may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0145] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, implements the functions / operations specified in the flow chart and / or block diagram. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0146] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a RAM, a ROM, an EPROM (Electrically Programmable Read-Only-Memory) or a flash memory, an optical fiber, a CD-ROM (Compact Dis sc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0147] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (Cathode-Ray Tube) or LCD (Liquid Crystal Display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball), through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0148] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network), WAN (Wide Area Network), the Internet, and blockchain networks.

[0149] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services ("Virtual Private Server", or "VPS" for short). The server may also be a server of a distributed system, or a server combined with a blockchain.

[0150] It should be noted that artificial intelligence is a discipline that studies how computers can simulate certain human thought processes and intelligent behaviors (such as learning, reasoning, thinking, planning, etc.), and includes both hardware-level and software-level technologies. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, and big data processing; artificial intelligence software technologies mainly include computer vision technology, speech recognition technology, natural language processing technology, as well as machine learning / deep learning, big data processing technology, knowledge graph technology, and other major directions.

[0151] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0152] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A design method for flue expansion, characterized in that: include: Determine the operating condition of the flue system, and calculate the target expansion amount corresponding to each operating condition according to the system parameters of each operating condition, wherein the target expansion amount is used to represent the three-dimensional expansion demand of the flue system, and the system parameters at least include the flue gas flow rate, flue gas temperature and flue gas composition in the flue system; Designing reinforcement ribs according to the system parameters to obtain target reinforcement ribs, and determining a target expansion joint of the flue system according to the target expansion amount; wherein the target expansion joint meets a preset expansion load condition; Designing an expansion guide for the flue system according to the target expansion amount to obtain a target expansion guide, and designing a limit device for the flue system according to the target expansion amount to obtain a target limit device; A design scheme is designed based on the target reinforcement rib, the target expansion joint, the target expansion guide, the target limit device and the preset installation position of the flue system to obtain a design scheme for flue expansion.

2. The method according to claim 1, characterized in that The preset installation positions of the flue system include: In the flue system, the target reinforcement rib is installed at a first preset position; wherein the first preset position is a stress concentration area in the flue system, and the stress concentration area at least includes a variable diameter and a bend pipe of the flue system; In the flue system, the target expansion joint is installed to a second preset position; wherein the second preset position is an expansion displacement area of ​​the flue system, and the expansion displacement area at least includes a connection point of the flue system; In the flue system, the target expansion guide is installed at a third preset position; wherein the third preset position at least includes an installation area of ​​the target expansion joint in the flue system; In the flue system, the target limiting device is installed to a fourth preset position, wherein the fourth preset position at least includes an end point of the flue system.

3. The method according to claim 1, characterized in that The designing of the reinforcement rib according to the system parameters to obtain the target reinforcement rib comprises: The reinforcement ribs are designed through the flue gas flow field and the flue gas flow velocity in the system parameters to obtain target reinforcement ribs; wherein the target reinforcement ribs are at least used to meet the preset deformation amount, and the preset deformation amount is the predetermined cold and hot alternating deformation amount of the flue system.

4. The method according to claim 1, characterized in that: The calculating of the target expansion amount corresponding to each of the operating conditions comprises: Determine the temperature difference between the inside and outside of the flue of the flue system according to the design temperature, the ambient temperature and the flue gas temperature in the system parameters; Determine the thermal expansion coefficient of the flue system according to the pipeline material information in the system parameters; wherein the pipeline material information is the material information of the pipeline of the flue system; The thermal expansion amount is calculated according to the system parameters, the temperature difference between the inside and outside of the flue, and the thermal expansion coefficient to obtain the target expansion amount.

5. The method according to claim 2, characterized in that: Determining the target expansion joint of the flue system according to the target expansion amount includes: Determining the cumulative expansion amount of the flue system according to the target expansion amount; wherein the cumulative expansion amount is the total amount of expansion between a fixed point position in the flue system and the second preset position, and the fixed point position is a support point position of the flue system that does not move during expansion and contraction; Determining the displacement capacity of the expansion joint according to the accumulated expansion amount; wherein the displacement capacity is greater than the accumulated expansion amount; Determining the size of the expansion joint according to the flue size of the flue system, wherein the size of the expansion joint matches the size of the flue; The expansion joint is designed according to the displacement capacity, the expansion joint size and the preset expansion joint conditions to obtain the target expansion joint.

6. The method according to claim 1, characterized in that The designing of the expansion guide of the flue system according to the target expansion amount to obtain the target expansion guide comprises: Determine the expansion guide type according to the structural characteristics of the flue system; wherein the expansion guide type includes at least single-direction guide, multi-direction guide and combined guide; The expansion guide design is performed according to the thermal expansion information of the flue system contained in the system parameters, the target expansion amount and the expansion guide type to obtain the target expansion guide; wherein the thermal expansion information at least includes the thermal expansion displacement direction of the flue system.

7. The method according to claim 1, characterized in that The design of the limit device of the flue system according to the target expansion amount to obtain the target limit device includes: Determining temperature change data of the flue system according to the system parameters, wherein the temperature change data is temperature change data of the flue system during operation; Determining the type of the limiting device of the flue system according to the target expansion amount, wherein the type of the limiting device at least includes a fixed bracket, a limiting bracket and a spring bracket; A limiting device is designed according to the target expansion amount, the temperature change data, the type of the limiting device and the thermal expansion coefficient of the flue system to obtain the target limiting device.

8. A design device for flue expansion, characterized in that: include: a calculation unit, used to determine an operating condition of a flue system, and calculate a target expansion amount corresponding to each operating condition according to a system parameter of each operating condition, wherein the target expansion amount is used to represent a three-dimensional expansion demand of the flue system, and the system parameter at least includes a flue gas flow rate, a flue gas temperature, and a flue gas composition in the flue system; A first design unit is used to design a reinforcement rib according to the system parameters to obtain a target reinforcement rib; A determination unit, configured to determine a target expansion joint of the flue system according to the target expansion amount; wherein the target expansion joint satisfies a preset expansion load condition; A second design unit is used to perform expansion guidance design on the flue system according to the target expansion amount to obtain a target expansion guidance; A third design unit is used to design a limit device for the flue system according to the target expansion amount to obtain a target limit device; The fourth design unit is used to perform scheme design processing according to the target reinforcement rib, the target expansion joint, the target expansion guide, the target limit device and the preset installation position of the flue system to obtain a design scheme for flue expansion.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1-7.