Structured description method and device for gas path

Abstract

The invention provides a gas path structured description method and device. The method comprises the following steps: acquiring gas path principle parameters and gas path specification parameters of a gas path in a gas path technical file; performing structured description on the gas path according to gas path principle parameters and gas path specification parameters; the gas path principle parameters of the gas path comprise a gas path type, a gas path characteristic, a control mode and a principle serial number. In the technical scheme provided by the invention, structural description is carried out on the gas paths according to the gas path principle parameters and the gas path specification parameters, feature extraction and functional decomposition can be carried out on the complex gas paths, modular, serialized and universal design of different types of gas paths is realized, corresponding gas path families are formed, clustering of reusable gas paths is realized, and the reliability of the gas paths is improved. Therefore, modularized development of a complex gas supply system is realized. By means of the modularized development mode, the development period is shortened, the personalized development efficiency of the gas circuit is improved, the multi-project parallel development requirement can be met, and efficient design and reuse of the gas circuit are achieved.

Description

Technical Field

[0001] This invention relates to the field of gas supply circuit technology, and more specifically to a structured description method and apparatus for gas circuits. Background Technology

[0002] In the aerospace field, ground gas supply systems are integrated electromechanical systems composed of equipment, valves, pipelines, and accessories. They are used to supply compressed gas to launch vehicles and other ground equipment and to monitor their status. Gas distribution equipment is the main electromechanical equipment in ground gas supply systems. It is used to control gas parameters and the on / off status of gas paths, and to monitor their status. A single ground gas supply system typically has multiple sets of various types of gas distribution equipment installed as needed.

[0003] Due to the need for gas source switching, the characteristics of high-pressure gases, and gas usage requirements, the development of gas distribution equipment must comprehensively consider the diverse needs of users, leading to a long-term reliance on customized development. Firstly, common working media in ground-based gas supply systems include air, nitrogen, and helium, and different users have varying gas source switching requirements in their gas usage projects and processes. Secondly, high-pressure gases possess characteristics such as compressibility, unsteadiness, and throttling / thermal effects, necessitating extensive development experience and testing for the development and use of high-pressure gas valves and distribution equipment to avoid technical and safety risks. Thirdly, common gas usage types in ground-based gas supply systems include valve control gas, purging and environmental protection gas, cylinder filling / replacement gas, and launch pad control gas, covering high, medium, and low pressure ranges, with significant variations in gas flow rates. Therefore, the number, principles, processes, and specifications of different gas paths within the supply system all differ.

[0004] Under the traditional gas distribution equipment development model, strict requirements are placed on the engineering experience and professional skills of the development personnel, making product technical status management and technical risk control difficult, the system development cycle is long, and it cannot meet the needs of parallel development of multiple projects, resulting in low efficiency of personalized development. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide a structured description method and apparatus for gas paths, which can solve the problems of high difficulty in product technical status management and technical risk control, long system development cycle, inability to meet the needs of parallel development of multiple projects, and low efficiency of personalized development in the prior art.

[0006] In a first aspect, embodiments of the present invention provide a method for structurally describing a gas path, the method comprising:

[0007] Obtain the gas path principle parameters and gas path specification parameters from the gas path technical documents;

[0008] The gas path is described in a structured manner based on the gas path principle parameters and the gas path specification parameters;

[0009] The gas path principle parameters include gas path type, gas path characteristics, control method, and principle number.

[0010] In one possible implementation, the gas path type includes a gas source control gas path, a pressure control gas path, a flow control gas path, a single-path gas supply gas path, and a multi-path gas supply gas path.

[0011] In one possible implementation, the gas path features include the number of gas source inlets in the gas source control gas path, the number of pressure reducing valves in the pressure control gas path, the number of flow control branches in the flow control gas path, the number of supply branches in a single-supply gas path, or the gas path switching method for multiple-supply gas paths.

[0012] In one possible implementation, the control method includes manual control, electric control, or a combination of manual and electric control.

[0013] In one possible implementation, when the gas path type, gas path characteristics, and control method are all the same, but the gas path principles are different, the gas paths are distinguished by principle serial numbers.

[0014] In one possible implementation, the gas source control gas path, the single-path gas supply gas path, and the multi-path gas supply gas path include the main path diameter, pressure rating, material code, and component configuration series number.

[0015] In one possible implementation, the air circuit specifications corresponding to the pressure control air circuit include the main circuit diameter, the pressure reducing valve interface diameter, the inlet pressure rating, the outlet pressure rating, the material code, and the component configuration serial number.

[0016] In one possible implementation, the gas path specifications corresponding to the flow control gas path include the main path diameter, pressure rating, flow limiting element diameter, material code, and element configuration serial number.

[0017] In one possible implementation, the gas path specification parameters corresponding to the gas source control gas path, the pressure control gas path, the flow control gas path, the single-path gas supply gas path, and the multi-path gas supply gas path also include the pipeline routing number.

[0018] Secondly, embodiments of the present invention provide a structured description device for a gas path, the device comprising:

[0019] The acquisition module is used to acquire the gas path principle parameters and gas path specification parameters in the gas path technical documents;

[0020] The description module is used to provide a structured description of the gas path based on the gas path principle parameters and the gas path specification parameters;

[0021] The gas path principle parameters include gas path type, gas path characteristics, control method, and principle number.

[0022] The technical solution provided in this invention describes the gas path in a structured manner according to the gas path principle parameters and gas path specification parameters. This allows for feature extraction and functional decomposition of complex gas paths, enabling modular, serialized, and universal design of different types of gas paths, forming corresponding gas path families, and achieving clustering of reusable gas paths. This, in turn, enables the modular development of complex gas supply systems. This modular development approach replaces the existing component-based development model, shortens the development cycle, improves the efficiency of personalized gas path development, and meets the needs of parallel development of multiple projects, achieving efficient design and reuse of gas paths.

[0023] In this embodiment of the invention, when a new gas path emerges that is not applicable to existing rules, the rules can be extended based on the existing rules to adapt to constantly changing user needs. Furthermore, the extended rules are logically consistent with the existing rules, avoiding management logic confusion caused by rule changes and facilitating efficient gas path management.

[0024] In this embodiment of the invention, the gas path representation objects in the gas path technology document are thoroughly discretized according to the specific equipment type, parameter type, and parameter data of the gas path structure. Different levels of structured description rules are used to form corresponding quantitative descriptions of the gas path representation objects in the gas path technology document, thereby forming aggregated descriptions of complete or partial gas path structures in the gas path technology document. This provides the gas path with a quantifiable, clusterable, and analyzable data foundation. This allows for the acquisition of gas path parameters from different dimensions during large-scale gas path design, application, and improvement, enabling automated processing of gas path topology and function. Attached Figure Description

[0025] Figure 1 This is a flowchart illustrating a structured description method for a gas path provided in an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram illustrating the structured description of a gas source control gas path provided in an embodiment of the present invention.

[0027] Figure 3 This is a structural description diagram of a single-channel gas supply circuit provided in an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram illustrating the structured description of a multi-channel gas supply path provided in an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram illustrating the structure of a pressure control gas path provided in an embodiment of the present invention.

[0030] Figure 6This is a schematic diagram illustrating a structured description of a flow control gas path provided in an embodiment of the present invention.

[0031] Figure 7 This is a schematic diagram illustrating the structure of another pressure control gas path provided in an embodiment of the present invention.

[0032] Figure 8 This is a structural schematic diagram of a gas path structure description device provided in an embodiment of the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer and more understandable, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] Figure 1 This is a flowchart illustrating a structured description method for a gas path provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes:

[0035] Step 101: Obtain the gas path principle parameters and gas path specification parameters from the gas path technical documents.

[0036] In this step, the gas path technical documents include, but are not limited to, gas path diagrams, structured documents, tables, and other relevant materials that summarize the core information of the gas path. Gas path diagrams use a visual approach to intuitively display the spatial layout of the gas path and the connection relationships between various components. For example, gas path diagrams include visual gas path graphics displayed in human-computer interaction interfaces such as computer equipment, control systems, and host computers. Structured documents use logical text to summarize the core information of the gas path. Tables use structured forms to summarize the core data of the gas path. For example, structured forms can be used to count the components used in the gas path and their quantities. The gas path principle parameters include gas path type, gas path characteristics, control method, and principle number.

[0037] In this embodiment of the invention, the gas path types include gas source control gas path, pressure control gas path, flow control gas path, single-path gas supply gas path, and multi-path gas supply gas path. Specifically, the gas source control gas path is used to switch gas sources and control the on / off state of the gas source, denoted by the code Q; the pressure control gas path is used to regulate gas pressure, denoted by the code Y; the flow control gas path is used to regulate gas flow, denoted by the code L; the single-path gas supply gas path is used to provide gas supply (release) function for a single item, denoted by the code T; and the multi-path gas supply gas path is used to provide gas supply (release) function for multiple related items, denoted by the code G.

[0038] In this embodiment of the invention, the gas path features include the number of gas source inlets in the gas source control gas path, the number of pressure reducing valves in the pressure control gas path, the number of flow control branches in the flow control gas path, the number of supply branches in a single gas supply gas path, or the gas path switching method for multiple gas supply gas paths. Specifically, the gas path switching method for multiple gas supply gas paths involves independently switching between supply and release gas between different gas paths, or synchronously switching between supply and release gas between different gas paths.

[0039] Specifically, when the number of air inlets in the air source control circuit is 1, the number of pressure reducing valves in the pressure control circuit is 1, the number of flow control branches in the flow control circuit is 1, and the number of supply branches in the single-line air supply circuit is 1, or when different air lines in multiple air supply circuits independently switch between supply and release, it is represented by the code D. When the number of air inlets in the air source control circuit is 2, the number of pressure reducing valves in the pressure control circuit is 2, the number of flow control branches in the flow control circuit is 2, and the number of supply branches in the single-line air supply circuit is 2, or when different air lines in multiple air supply circuits synchronously switch between supply and release, it is represented by the code S. When the number of air inlets in the air source control circuit is 3, the number of pressure reducing valves in the pressure control circuit is 3, the number of flow control branches in the flow control circuit is 3, and the number of supply branches in the single-line air supply circuit is 3, it is represented by the code T. When the number of air inlets in the air source control circuit is 4, the number of pressure reducing valves in the pressure control circuit is 4, the number of flow control branches in the flow control circuit is 4, and the number of supply branches in the single-line air supply circuit is 4, it is represented by the code F. When the air circuit characteristics are other, it is represented by the code Z.

[0040] In this embodiment of the invention, the control method includes manual control, electric control, or both manual and electric control. Manual control is represented by the code S; electric control is represented by the code D; and both manual and electric control is represented by the code L.

[0041] In this embodiment of the invention, when the gas path type, gas path characteristics, and control method are the same, but the gas path principles are different, the gas paths are distinguished by principle serial numbers. For example, when two gas paths have the same gas path type code, gas path characteristic code, and control method code, the gas paths are distinguished by principle serial numbers, which are numbered sequentially in the order of A, B, C, etc.

[0042] Figure 2 This is a structural description diagram of a gas source control gas path provided in an embodiment of the present invention, such as... Figure 2 As shown, the gas source control gas path specifications include the main path diameter, pressure rating, material code, and component configuration series number.

[0043] Figure 3 This is a structural description diagram of a single-channel gas supply path provided in an embodiment of the present invention, as shown below. Figure 3As shown, the gas circuit specifications for a single gas supply circuit include the main circuit diameter, pressure rating, material code, and component configuration series number.

[0044] Figure 4 This is a structural description diagram of a multi-channel gas supply path provided in an embodiment of the present invention, such as... Figure 4 As shown, the gas circuit specifications for multiple gas supply circuits include the main circuit diameter, pressure rating, material code, and component configuration series number.

[0045] Figure 5 This is a structural description diagram of a pressure control gas path provided in an embodiment of the present invention, such as... Figure 5 As shown, the specifications of the pressure control air circuit include the main circuit diameter, the pressure reducing valve interface diameter, the inlet pressure rating, the outlet pressure rating, the material code, and the component configuration series number.

[0046] Figure 6 This is a structural description diagram of a flow control gas path provided by an embodiment of the present invention, such as... Figure 6 As shown, the specifications for the flow control gas path include the main flow diameter, pressure rating, flow limiting element diameter, material code, and element configuration series number. For example, if the flow control gas path includes n flow limiting elements, the specifications for the flow control gas path must sequentially indicate the diameter of the 1st flow limiting element, ..., the (n-1)th flow limiting element, and the nth flow limiting element. As another example, if the flow control gas path does not have any flow limiting elements, the specifications for the flow control gas path are marked as W.

[0047] Optionally, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the gas supply control gas circuit, pressure control gas circuit, flow control gas circuit, single gas supply gas circuit, and multi-gas supply gas circuit specifications also include pipeline routing numbers.

[0048] Specifically, the main flow path diameter refers to the diameter of the main flow channel in the gas circuit, in mm. The pressure reducing valve interface diameter refers to the diameter of the pressure reducing valve interface in the pressure control gas circuit, in mm. The flow limiting element diameter refers to the diameter of the flow limiting orifice of each flow limiting element in the flow control gas circuit, expressed as a rational number (generally accurate to one decimal place), in mm. The pressure rating indicates the working pressure rating of the gas source control gas circuit, single-line gas supply gas circuit, or multi-line gas supply gas circuit, or the inlet pressure rating of the flow control gas circuit, in MPa. The inlet pressure rating indicates the inlet pressure rating of the pressure reducing valve in the pressure control gas circuit, in MPa. The outlet pressure rating indicates the outlet pressure rating of the pressure reducing valve in the pressure control gas circuit, in MPa. The material code indicates the material selection of the combination of pipelines and connectors in the gas circuit, represented by a capital letter followed by an integer, dimensionless. The component configuration series number indicates the component configuration status in the gas circuit, represented by a capital letter, coded in the order of A, B, C… The pipeline routing number indicates the routing status of the pipelines in the gas circuit, and is represented by a single uppercase letter, coded in the order of A, B, C... The main pipeline diameter, pressure reducing valve interface diameter, pressure rating, inlet pressure rating, and outlet pressure rating are all represented as integers.

[0049] In this embodiment of the invention, the structured description of the gas path should be followed by a unified definition document such as the corresponding gas path standard or technical document number to ensure the standardization of the gas path design and avoid misunderstandings or operational errors caused by differences in terminology or technical requirements.

[0050] Step 102: Describe the gas path in a structured manner based on the gas path principle parameters and gas path specification parameters.

[0051] In this step, the gas path is described in a structured manner through two parts arranged from left to right: the gas path principle parameters section and the gas path specification parameters section, separated by a space. The gas path principle parameters section consists of four uppercase letters, from left to right: gas path type code, gas path characteristic code, control mode code, and gas path principle code.

[0052] In the gas circuit specification parameters section, except for the "-" symbol used to separate pressure ratings and pipe diameters, all other codes are separated by the " / " symbol. When a parameter is omitted, the corresponding separator symbol is also omitted.

[0053] Figure 7 A schematic diagram illustrating another structured description of a pressure control gas path provided in an embodiment of the present invention, as shown below. Figure 7As shown, the pressure control air circuit includes a first manual throttle valve JL_X_1, a second manual throttle valve JL_X_2, a pressure gauge P_X, a pressure sensor BP_X, a spring-loaded pressure reducing valve JQ_X, and a manual shut-off valve JF_X_F. The air circuit principle parameters are as follows: air circuit type is pressure control air circuit, air circuit type code is Y; number of pressure reducing valves is 1, air circuit characteristic code is D; control mode is manual control, control mode code is S. The air circuit specifications are as follows: main line diameter is 10mm, pressure reducing valve diameter is 10mm, inlet pressure rating is 23MPa, outlet pressure rating is 10MPa, material code is H2, component configuration series number is A, and pipeline routing sequence number is A. The designer defines material code rules in the air circuit standard according to material selection requirements and determines the material codes based on these rules. The material code rules are used to indicate the correspondence between materials and material codes. Similarly, the designer defines component configuration rules and pipeline routing rules in the gas path standard according to component selection requirements and pipeline routing requirements, and determines the component configuration series number and pipeline routing sequence number based on these rules. The component configuration rules indicate the correspondence between components and component configuration series numbers, while the pipeline routing rules indicate the correspondence between pipeline routing and pipeline routing sequence numbers. According to the structured description rules for pressure control gas paths, the structured description of this pressure control gas path is: YDSA 10-10 / 23-10 / H2 / A / A.

[0054] The technical solution provided in this invention describes the gas path in a structured manner according to the gas path principle parameters and gas path specification parameters. This allows for feature extraction and functional decomposition of complex gas paths, enabling modular, serialized, and universal design of different types of gas paths, forming corresponding gas path families, and achieving clustering of reusable gas paths. This, in turn, enables the modular development of complex gas supply systems. This modular development approach replaces the existing component-based development model, shortens the development cycle, improves the efficiency of personalized gas path development, and meets the needs of parallel development of multiple projects, achieving efficient design and reuse of gas paths.

[0055] In this embodiment of the invention, when a new gas path emerges that is not applicable to existing rules, the rules can be extended based on the existing rules to adapt to constantly changing user needs. Furthermore, the extended rules are logically consistent with the existing rules, avoiding management logic confusion caused by rule changes and facilitating efficient gas path management.

[0056] In this embodiment of the invention, the characterization objects in the gas path technical document are thoroughly discretized according to the specific equipment type, parameter type, and parameter data of the gas path structure. Different levels of structured description rules are used to form corresponding quantitative descriptions of the characterization objects in the gas path technical document, thereby forming an aggregated description of the complete or partial gas path structure in the gas path technical document. This provides the gas path technical document with a quantifiable, clusterable, and analyzable data foundation. This allows for the acquisition of gas path parameters from different dimensions during large-scale gas path design, application, and improvement, enabling automated processing of gas path topology and function.

[0057] In this embodiment of the invention, taking a complex gas distribution device of the same scale with more than 100 valves as an example, under the component development mode, detailed drawing design of products including all valves, pipelines, pipeline connectors, equipment frames, other structural components and standard parts is required, which is equivalent to about 500 pages of A4 drawings. By using the modular gas circuit provided by the present invention, a general basic gas circuit of specific specifications can be quickly selected by gas circuit code, which is equivalent to less than 200 pages of A4 drawings, effectively reducing the workload of drawing design.

[0058] Figure 8 This is a structural schematic diagram of a gas path structure description device provided in an embodiment of the present invention, such as... Figure 8 As shown, the device includes an acquisition module 11 and a description module 12. The acquisition module 11 is used to acquire the gas path principle parameters and gas path specification parameters from the gas path technical document; the description module 12 is used to perform a structured description of the gas path based on the gas path principle parameters and gas path specification parameters; the gas path principle parameters include gas path type, gas path characteristics, control method, and principle number.

[0059] In this embodiment of the invention, the gas path types include gas source control gas path, pressure control gas path, flow control gas path, single-path gas supply gas path, and multi-path gas supply gas path.

[0060] In this embodiment of the invention, the gas path features include the number of gas source inlets in the gas source control gas path, the number of pressure reducing valves in the pressure control gas path, the number of flow control branches in the flow control gas path, the number of supply branches in a single gas supply gas path, or the gas path switching method for multiple gas supply gas paths.

[0061] In this embodiment of the invention, the control method includes manual control, electric control, or a combination of manual and electric control.

[0062] In this embodiment of the invention, when the gas path type, gas path characteristics and control method are the same, but the gas path principles are different, the gas paths are distinguished by principle serial numbers.

[0063] In this embodiment of the invention, the gas supply control gas path, single-path gas supply gas path, and multi-path gas supply gas path specifications include main path diameter, pressure rating, material code, and component configuration series number.

[0064] In this embodiment of the invention, the air circuit specifications corresponding to the pressure control air circuit include the main circuit diameter, the pressure reducing valve interface diameter, the inlet pressure rating, the outlet pressure rating, the material code, and the component configuration series number.

[0065] In this embodiment of the invention, the gas path specification parameters corresponding to the flow control gas path include the main path diameter, pressure rating, flow limiting element diameter, material code, and element configuration series number.

[0066] In this embodiment of the invention, the gas path specification parameters corresponding to the gas source control gas path, pressure control gas path, flow control gas path, single-path gas supply gas path, and multi-path gas supply gas path also include the pipeline routing sequence number.

[0067] The technical solution provided in this invention describes the gas path in a structured manner according to the gas path principle parameters and gas path specification parameters. This allows for feature extraction and functional decomposition of complex gas paths, enabling modular, serialized, and universal design of different types of gas paths, forming corresponding gas path families, and achieving clustering of reusable gas paths. This, in turn, enables the modular development of complex gas supply systems. This modular development approach replaces the existing component-based development model, shortens the development cycle, improves the efficiency of personalized gas path development, and meets the needs of parallel development of multiple projects, achieving efficient design and reuse of gas paths.

[0068] In this embodiment of the invention, when a new gas path emerges that is not applicable to existing rules, the rules can be extended based on the existing rules to adapt to constantly changing user needs. Furthermore, the extended rules are logically consistent with the existing rules, avoiding management logic confusion caused by rule changes and facilitating efficient gas path management.

[0069] In this embodiment of the invention, the characterization objects in the gas path technical document are thoroughly discretized according to the specific equipment type, parameter type, and parameter data of the gas path structure. Different levels of structured description rules are used to form corresponding quantitative descriptions of the characterization objects in the gas path technical document, thereby forming an aggregated description of the complete or partial gas path structure in the gas path technical document. This provides the gas path technical document with a quantifiable, clusterable, and analyzable data foundation. This allows for the acquisition of gas path parameters from different dimensions during large-scale gas path design, application, and improvement, enabling automated processing of gas path topology and function.

[0070] This invention provides a computer-readable storage medium, which includes a stored program. When the program runs, it controls the device where the computer-readable storage medium is located to execute the steps of the above-described structured description method for gas paths. For a detailed description, please refer to the embodiments of the above-described structured description method for gas paths.

[0071] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method of structured description of an airpath, characterized in that, The method comprises: acquiring gas circuit principle parameters and gas circuit specification parameters of a gas circuit in a gas circuit technical document; structurally describing the gas circuit according to the gas circuit principle parameters and the gas circuit specification parameters; the gas circuit principle parameters of the gas circuit include a gas circuit type, a gas circuit feature, a control mode, and a principle serial number.

2. The method of claim 1, wherein, the gas circuit type includes a gas source control gas circuit, a pressure control gas circuit, a flow control gas circuit, a single-gas-supply gas circuit, and a multi-gas-supply gas circuit.

3. The method of claim 1, wherein, the gas circuit feature includes a number of gas source inlets of the gas source control gas circuit, a number of pressure reducing valves of the pressure control gas circuit, a number of flow control branches of the flow control gas circuit, a number of gas supply branches of the single-gas-supply gas circuit, or a gas circuit switching mode of the multi-gas-supply gas circuit.

4. The method of claim 1, wherein, the control mode includes manual control, electric control, or manual and electric control.

5. The method of claim 1, wherein, when the gas circuit type, the gas circuit feature, and the control mode are all the same but the gas circuit principle is different, the gas circuit is distinguished by the principle serial number.

6. The method of claim 2, wherein, the gas circuit specification parameters corresponding to the gas source control gas circuit, the single-gas-supply gas circuit, and the multi-gas-supply gas circuit include a main circuit diameter, a pressure rating, a material code, and an element configuration serial number.

7. The method of claim 2, wherein, the gas circuit specification parameters corresponding to the pressure control gas circuit include a main circuit diameter, a pressure reducing valve interface diameter, an inlet pressure rating, an outlet pressure rating, a material code, and an element configuration serial number.

8. The method of claim 2, wherein, the gas circuit specification parameters corresponding to the flow control gas circuit include a main circuit diameter, a pressure rating, a flow limiting element diameter, a material code, and an element configuration serial number.

9. The method of claim 2, wherein, the gas circuit specification parameters corresponding to the gas source control gas circuit, the pressure control gas circuit, the flow control gas circuit, the single-gas-supply gas circuit, and the multi-gas-supply gas circuit further include a pipe routing serial number.

10. An apparatus for structured description of an airpath, characterized by The device comprises: an acquisition module configured to acquire gas circuit principle parameters and gas circuit specification parameters of a gas circuit in a gas circuit technical document; a description module configured to structurally describe the gas circuit according to the gas circuit principle parameters and the gas circuit specification parameters; the gas circuit principle parameters of the gas circuit include a gas circuit type, a gas circuit feature, a control mode, and a principle serial number.

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