Safety production analog simulation system based on gas power generation and valve

Abstract

The invention discloses a safety production analog simulation system based on gas power generation and a valve, and the method comprises the following steps: S1, starting to carry out the safety simulation of the operation of a gas pipeline according to a maintenance demand; s2, the state of a valve on the gas pipeline is adjusted; s3, starting rehearsal of line detection; according to the adjusted gas pipeline, whether the gas pipeline can normally supply gas to the generator set or not is detected, the gas supply requirement of the generator set is met, and meanwhile the overhaul requirement can be met, and gas-cut-off maintenance can be carried out; and S4, finishing simulation, wherein the operation of the gas pipeline meets the maintenance condition. The system provided by the invention can recognize potential safety hazards in advance by simulating actual maintenance requirements and operation, and ensures that accidents are reduced in actual operation. Before actual overhaul, the system can comprehensively detect the gas supply capacity of the gas pipeline, and it is ensured that the gas pipeline can normally work during the overhaul period.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric power automation, and in particular relates to a safe production simulation system and a valve based on gas-fired power generation. Background Art

[0002] Gas-fired power generation is based on natural gas provided by pipelines. The safety of power generation is of top priority, so it is necessary to regularly complete the maintenance of natural gas pipelines without stopping production. Therefore, before each maintenance operation, it is necessary to ensure that the corresponding valves are started / stopped to achieve the goal of safe production and safety inspection. The safety simulation system solves the problem of the review of the natural gas flow to the power generation safety process of the power generation pipeline, and at the same time meets the needs of completing the pipeline safety inspection.

[0003] In the prior art, the patent with publication number CN113156835 is a modeling and simulation method for the operation control of an electric-thermal integrated energy system, which includes: establishing a cogeneration unit model, obtaining the various components of the cogeneration unit and establishing corresponding models respectively; establishing an absorption chiller model, obtaining the various components of the absorption chiller and establishing corresponding static models and dynamic models respectively; establishing a thermal network model; based on the cogeneration unit model, the absorption chiller model and the thermal network model, a transient simulation model of the electric-thermal integrated energy system is formed to realize real-time control simulation of the electric-thermal integrated energy system.

[0004] In the prior art, there are several defects in the simulation method: the research from the perspective of the integrated energy system ignores the establishment process of the actual model of the system and the actual operating status, and is not suitable for real-time simulation and other simulations for actual operation. Summary of the invention

[0005] The purpose of the present invention is to provide a safe production simulation system and valve based on gas-fired power generation, so as to solve the problem that the prior art proposed in the background technology ignores the establishment process of the actual model of the system and the actual operating status, and is not suitable for real-time simulation and other simulations performed on actual operations.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A safety production simulation system based on gas power generation includes the following steps:

[0008] Step S1, starting a safety simulation of the operation of the gas pipeline according to maintenance requirements;

[0009] Step S2, adjusting the valve status on the gas pipeline according to the maintenance requirements in step S1;

[0010] Step S3, start the preview of line detection; according to the adjusted gas pipeline, detect whether the gas pipeline can normally supply gas to the generator set and meet the gas supply requirements of the generator set while meeting the maintenance requirements and gas outage maintenance; if it can meet the requirements, the adjustment of the gas pipeline has been completed; if it cannot meet the requirements, it is necessary to adjust the valve status on the gas pipeline and re-test;

[0011] Step S4, ending the simulation, the operation of the gas pipeline meets the maintenance conditions, and actual operation can be carried out.

[0012] According to the above technical solution, before conducting safety simulation, it is necessary to establish a gas pipeline model. Establishing the gas pipeline model specifically includes the following steps:

[0013] Step A1, setting the attribute unit of the pipeline, the attribute unit includes pipeline, passage, valve and corner, which are used for the pipeline attribute information of the pipeline model input by the user;

[0014] Step A2, setting the pipeline according to the pipeline node, the user establishes the pipeline node of the pipeline model on the model and sets the connection information of each pipeline node; wherein the pipeline node includes: the pipeline starting point, the pipeline end point and the key point of the pipeline path;

[0015] Step A3, a unit for setting a pipeline path, wherein the user sets a connection path between pipeline nodes connected at both ends of the pipeline; wherein the connection path includes: one or more of a multi-pass pipeline, a pipeline corner, and a straight pipe;

[0016] Step A4, pipeline generation, generates a pipeline model according to the pipeline attribute unit, pipeline node, connection information and connection path, and stores it in a computer storage file to complete the pipeline generation.

[0017] A safety production simulation valve based on gas power generation, the valve comprises a housing, a sealing component is arranged inside the housing, and a driving component is arranged on the housing; the driving component is connected with the sealing component and is used to drive the sealing component to seal the pipeline;

[0018] The sealing assembly includes an air hole, a sealing disk and a connecting rod; wherein the air hole is arranged on a protrusion of the sealing disk, the connecting rod is rotatably connected to one end of the sealing disk, and the other end of the connecting rod is rotatably connected to the driving assembly.

[0019] According to the above technical solution, a pipeline is arranged on the outer wall of the shell, one end of the pipeline is connected to the shell, and the other end of the pipeline is arranged with a flange, which is connected to other pipelines through the flange.

[0020] According to the above technical solution, a limiting groove is provided at the end of the pipeline, and the limiting groove is used to cooperate with the sealing disk to seal the pipeline.

[0021] According to the above technical solution, the driving assembly includes a driving rod and an outer sleeve; wherein, one end of the driving rod is arranged inside the shell and connected to the connecting rod; the other end of the driving rod passes through the outer sleeve and extends to the outside of the outer sleeve, and a connecting hole is also provided inside the outer sleeve, and the connecting hole is used to connect the outer sleeve with the shell, so as to introduce the gas inside the shell into the inside of the outer sleeve.

[0022] According to the above technical solution, the driving assembly also includes a connecting disk, which is arranged on the driving rod and cooperates with the connecting hole on the outer sleeve. The gas inside the shell is introduced into the interior of the outer sleeve through the connecting hole, pushing the connecting disk to move upward and keeping the sealing disk open.

[0023] According to the above technical solution, the connecting plate includes a frame and an elastic diaphragm, and the elastic diaphragm is arranged in the middle of the frame for cooperating with the gas.

[0024] According to the above technical solution, a baffle is also provided at the lower part of the driving rod, a support rod cooperating with the driving rod is provided inside the shell, a groove is provided in the middle of the support rod, and the side of the groove cooperates with the baffle to limit the driving rod.

[0025] According to the above technical solution, a hand wheel is also provided above the outer sleeve, and the hand wheel is connected to the driving rod and is used to drive the driving rod to open the pipeline.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The system of the present invention can identify potential safety hazards in advance by simulating actual maintenance needs and operations, ensuring that accidents are reduced in actual operations. Before entering the actual maintenance, the system can conduct a comprehensive test on the gas supply capacity of the gas pipeline to ensure that it can work normally during the maintenance period and avoid equipment shutdown or failure caused by gas supply problems. By adjusting and testing the valve status, the operating status of the gas pipeline can be optimized in real time to ensure that the maintenance work is carried out smoothly while meeting the gas supply needs of the generator set; carrying out the detection and adjustment process in a simulated environment in advance helps save time during actual maintenance and improve work efficiency, thereby reducing downtime and related economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a flow chart of the safety simulation system of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the valve of the present invention;

[0030] Figure 3 This is a schematic diagram of the driving rod structure of the present invention;

[0031] Figure 4It is a schematic diagram of the connection structure between the second driving rod and the third driving rod of the present invention.

[0032] Markings in the figure: 100-shell, 200-air hole, 300-sealing disk, 400-connecting rod, 500-pipe, 600-flange, 700-limiting groove, 800-protrusion, 900-driving rod, 901-first driving rod, 902-second driving rod, 903-third driving rod, 110-outer sleeve, 111-connecting hole, 112-connecting disk, 113-frame, 114-elastic diaphragm, 115-baffle, 116-support rod, 117-groove, 118-handwheel, 119-mounting part, 120-mounting groove, 121-limiting column. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] like Figure 1 As shown, a safety production simulation system based on gas power generation includes the following steps:

[0036] Step S1, starting a safety simulation of the operation of the gas pipeline according to maintenance requirements;

[0037] Step S2, adjusting the valve status on the gas pipeline according to the maintenance requirements in step S1;

[0038] Step S3, start the preview of line detection; according to the adjusted gas pipeline, detect whether the gas pipeline can normally supply gas to the generator set and meet the gas supply requirements of the generator set while meeting the maintenance requirements and gas outage maintenance; if it can meet the requirements, the adjustment of the gas pipeline has been completed; if it cannot meet the requirements, it is necessary to adjust the valve status on the gas pipeline and re-test;

[0039] Step S4, ending the simulation, the operation of the gas pipeline meets the maintenance conditions, and actual operation can be carried out.

[0040] Before conducting a safety simulation, you need to build a gas pipeline model. Building a gas pipeline model includes the following steps:

[0041] Step A1, setting the attribute unit of the pipeline, the attribute unit includes pipeline, passage, valve and corner, which are used for the pipeline attribute information of the pipeline model input by the user;

[0042] Step A2, setting the pipeline according to the pipeline node, the user establishes the pipeline node of the pipeline model on the model and sets the connection information of each pipeline node; wherein the pipeline node includes: the pipeline starting point, the pipeline end point and the key point of the pipeline path;

[0043] Step A3, a unit for setting a pipeline path, wherein the user sets a connection path between pipeline nodes connected at both ends of the pipeline; wherein the connection path includes: one or more of a multi-pass pipeline, a pipeline corner, and a straight pipe connection;

[0044] Step A4, pipeline generation, generates a pipeline model according to the pipeline attribute unit, pipeline node, connection information and connection path, and stores it in a computer storage file to complete the pipeline generation.

[0045] The path selection module is used to obtain a connection path of the pipeline nodes to be connected at both ends determined by at least one connection path.

[0046] The path generation module generates a connection path (model) according to the following rules:

[0047] When two pipeline nodes to be connected are connected through pipelines, when encountering a passage (two-way, three-way, four-way), in accordance with the principle of allowing multiple predecessors and multiple successors, N passages are formed according to the subsequent nodes;

[0048] When a valve closing node is encountered, this path does not reach the end of the pipeline and this path ends;

[0049] When judging the subsequent node, if the subsequent node is unobstructed, the system recursive algorithm continues to search for the subsequent path selection node until the end of the pipeline is reached to form N access paths.

[0050] The path that ultimately reaches the end of the pipeline is the critical path. The more paths that are reached, the more passages there are, and the more opportunities there are for subsequent passage selection.

[0051] According to the actual wiring diagram of the gas pipeline, a pipeline diagram is made in proportion in the system to establish a vector model of the entire pipeline;

[0052] Establish a database, set the equipment KKS code and specific valve sensor point data, and form a vector diagram corresponding to the valve and point;

[0053] Data collection: The unstructured data of the valve sensor is connected to the DCS server. The DCS server polls and receives the opening status, pressure, temperature, humidity and other data information of all sensors for data storage;

[0054] Data cleaning: The data from the valve sensor is pre-processed by data cleaning, including removing duplicate records, processing missing values, data type conversion, outlier detection and processing, and storing valid data;

[0055] Data pulling, storing valid data of opening status, pressure, temperature and humidity, and obtaining the opening status data of each valve in real time through OPC protocol interface request;

[0056] Data storage: real-time acquisition of the opening status data of each valve and storage in the SIS database server;

[0057] Model backfilling, based on the valve sensor point data and switch status data obtained from the SIS database server, is written back to the vector model of the specific pipeline in real time to ensure that the model is consistent with the actual site.

[0058] The system of the present invention is intended to improve the safety and efficiency of gas pipeline maintenance, and its effects are mainly reflected in the following aspects:

[0059] By simulating actual maintenance needs and operations, potential safety hazards can be identified in advance, ensuring that accidents are reduced in actual operations.

[0060] Before the actual maintenance, the system can conduct a comprehensive test on the gas supply capacity of the gas pipeline to ensure that it can work normally during the maintenance period and avoid equipment shutdown or failure caused by gas supply problems. By adjusting and testing the valve status, the operating status of the gas pipeline can be optimized in real time to ensure that the maintenance work can be carried out smoothly while meeting the gas supply needs of the generator set.

[0061] Carrying out the inspection and adjustment process in a simulated environment in advance can help save time during actual maintenance and improve work efficiency, thereby reducing downtime and related economic losses. The system can also be used as a training tool to help relevant personnel become familiar with the maintenance process and emergency handling, and improve their work skills and ability to deal with emergencies.

[0062] By recording and analyzing the process, the operating status and maintenance needs of the gas pipeline can be systematically managed, providing data support for subsequent maintenance decisions.

[0063] The system of the present invention improves the operation efficiency and maintenance effectiveness of the gas pipeline while ensuring safety, and provides a strong guarantee for the safe and stable operation of gas-fired power generation.

[0064] Embodiment 2

[0065] This embodiment is a further refinement of the first embodiment. The existing gas pipeline is composed of multiple short pipes connected by flanges, and the flange connection is the main hidden danger of gas leakage. Since the existing pipeline relies only on flange connection, the sealing performance is insufficient, which can easily lead to gas leakage and cause safety risks. During the detection process, the detector is usually fixed at a position close to the pipeline connection, and an alarm will be triggered once a gas leak is detected. However, due to the certain distance between the detector and the pipeline connection, and the non-directionality of the leaked gas flowing along the air, not all leaked gas can be captured by the detector. Only when the amount of leaked gas is large can the detector detect it in time, thereby reducing its sensitivity to gas leaks.

[0066] like Figure 2 As shown, a safety production simulation valve based on gas power generation, the valve includes a housing 100, a sealing component is arranged inside the housing 100, and a driving component is arranged on the housing 100; the driving component is connected to the sealing component and is used to drive the sealing component to seal the pipeline 500;

[0067] like Figure 2 As shown, the sealing assembly includes an air hole 200, a sealing disk 300 and a connecting rod 400; wherein the air hole 200 is arranged on the protrusion 800 of the sealing disk 300, the connecting rod 400 is rotatably connected to one end of the sealing disk 300, and the other end of the connecting rod 400 is rotatably connected to the driving assembly.

[0068] A pipe 500 is disposed on the outer wall of the shell 100 , one end of the pipe 500 is communicated with the shell 100 , and a flange 600 is disposed on the other end of the pipe 500 , which is connected to other pipes 500 through the flange 600 .

[0069] A limiting groove 700 is provided at the end of the pipe 500 , and the limiting groove 700 is used to cooperate with the protrusion 800 on the sealing disk 300 to seal the pipe 500 .

[0070] Furthermore, the protrusion 800 slides inside the limiting groove 700, and the protrusion 800 will not fall out from the inside of the limiting groove 700 (the limiting between the protrusion 800 and the limiting groove 700 can be selected according to the actual use needs, for example, the protrusion 800 and the limiting groove 700 can be limited by setting a flange). Specifically, when the driving component drives the sealing disk 300 to move to the right, the protrusion 800 also moves to the right with the sealing disk 300, and the air hole 200 set on the protrusion 800 will be connected with the inside of the shell 100, so as to introduce the gas in the pipeline 500 into the inside of the shell 100. On the contrary, the sealing disk 300 and the protrusion 800 move to the left under the action of the driving component, so that the protrusion 800 is embedded in the inside of the limiting groove 700, so as to close the air hole 200 and seal the pipeline 500 and the shell 100.

[0071] Furthermore, a plurality of air holes 200 are provided, and the plurality of air holes 200 are evenly arranged on the inner wall of the protrusion 800 .

[0072] like Figure 2 and Figure 3 As shown, the driving assembly includes a driving rod 900 and an outer sleeve 110; wherein, one end of the driving rod 900 is arranged inside the shell 100 and connected to the connecting rod 400; the other end of the driving rod 900 is arranged inside the outer sleeve 110, and a connecting hole 111 is also arranged inside the outer sleeve 110, and the connecting hole 111 is used to connect the outer sleeve 110 with the shell 100, by introducing the gas inside the shell 100 into the inside of the outer sleeve 110.

[0073] This embodiment provides a specific structure of a driving rod 900. The driving rod 900 includes a first driving rod 901, a second driving rod 902 and a third driving rod 903; wherein, an external thread is provided on the outer wall of the first driving rod 901, and an internal thread matching the first driving rod 901 is provided on the inner wall of the outer sleeve 110, and the first driving rod 901 and the outer sleeve 110 are connected by threads; the second driving rod 902 is provided inside the first driving rod 901, and the second driving rod 902 can slide inside the first driving rod 901.

[0074] The third driving rod 903 is rotatably connected to the second driving rod 902, and no sliding occurs between the third driving rod 903 and the second driving rod 902. Figure 4 As shown, a rotation groove is provided on the outer wall of the third driving rod 903, and a protrusion corresponding to the rotation groove is provided inside the second driving rod 902. Through the cooperation between the rotation groove and the protrusion, the second driving rod 902 and the third driving rod 903 are rotationally connected, and the second driving rod 902 can drive the third driving rod 903 to move.

[0075] Furthermore, through holes are respectively provided on the first driving rod 901 and the second driving rod 902 , and the through holes provided on the first driving rod 901 and the second driving rod 902 cooperate with each other. The through holes are used to install latches, and the latches are used to fix the first driving rod 901 and the second driving rod 902 .

[0076] Furthermore, the through holes are arranged at the upper ends of the first driving rod 901 and the second driving rod 902 , and the arranged latch does not affect the rotation of the first driving rod 901 .

[0077] Furthermore, the end of the first driving rod 901 is connected to the handwheel 118, and the handwheel 118 drives the entire driving rod to move upward; the connecting disk 112 is arranged on the second driving rod 902, and when the second driving rod 902 moves upward, it drives the connecting disk 112 to move upward together; a baffle is arranged at the lower end of the third driving rod 903.

[0078] A specific implementation method: when in use, the first drive rod 901 is first driven to rotate by the hand wheel 118 (at this time, the first drive rod 901 and the second drive rod 902 are connected by a pin); the first drive rod 901 drives the second drive rod 902 and the third drive rod 903 to move upward (the second drive rod 902 and the third drive rod 903 rotate relative to each other, and the third drive rod 903 only moves but does not rotate); when the second drive rod 902 moves upward, it drives the connecting disk 112 to move upward together; when the third drive rod 903 moves upward, it drives the connecting rod 400 to rotate, thereby pulling the sealing disk 300 to open the valve.

[0079] After the valve is opened (the latch between the first drive rod 901 and the second drive rod 902 is removed to release the fixed connection between the first drive rod 901 and the second drive rod 902), the gas inside the shell 100 is introduced into the outer sleeve 110 through the connecting hole 111, and the connecting plate 112 is pushed by the pressure of the gas, so that the connecting plate 112 drives the second drive rod 902 to maintain the current state (such as Figure 2 as shown), keep the valve open.

[0080] like Figure 4 As shown, in order to keep the third driving rod 903 from rotating and only moving, a limiting column 121 is provided on the outer wall of the third driving rod 903, and a sliding groove cooperating with the limiting column 121 is provided inside the outer sleeve 110. By setting the limiting column 121 inside the sliding groove, the third driving rod 903 is limited so that the third driving rod 903 can only move up and down.

[0081] like Figure 3 As shown, the drive assembly also includes a connecting disk 112, which is arranged on the drive rod 900, and the connecting disk 112 also cooperates with the connecting hole 111 on the outer sleeve 110. The gas inside the shell 100 is introduced into the inside of the outer sleeve 110 through the connecting hole 111, pushing the connecting disk 112 to move upward, thereby keeping the sealing disk 300 open.

[0082] The connecting plate 112 includes a frame 113 and an elastic diaphragm 114 . The elastic diaphragm 114 is disposed in the middle of the frame 113 for cooperating with the gas.

[0083] A baffle 115 is also provided at the lower part of the driving rod 900, and a support rod 116 cooperating with the driving rod 900 is provided inside the shell 100. A groove 117 is provided in the middle of the support rod 116, and the side of the groove 117 cooperates with the baffle 115 to limit the driving rod 900.

[0084] A mounting portion 119 is further provided below the baffle 115 , a mounting groove 120 is provided in the middle of the mounting portion 119 , and an end portion of the connecting rod 400 is rotatably disposed inside the mounting groove 120 .

[0085] A hand wheel 118 is also provided above the outer sleeve 110, and the hand wheel is connected to the driving rod for driving the driving rod to open the pipeline.

[0086] In the present invention, when the driving assembly drives the sealing disk 300 to move to the right, the protrusion 800 also moves to the right with the sealing disk 300, and the air hole 200 provided on the protrusion 800 is connected with the inside of the housing 100, thereby introducing the gas in the pipeline 500 into the inside of the housing 100. On the contrary, the sealing disk 300 and the protrusion 800 move to the left under the action of the driving assembly, so that the protrusion 800 is embedded in the inside of the limiting groove 700, thereby closing the air hole 200, sealing the pipeline 500 and the housing 100, so that the sealing disk 300 can seal the pipeline 500, prevent gas leakage, and improve the safety of the system.

[0087] The driving assembly drives the movement of the driving rod 900 and the connecting plate 112 by introducing gas. When the driving rod 900 is pulled up by the hand wheel 118 and the valve is opened, the gas filled into the interior of the shell 100 enters the interior of the outer sleeve 110 through the connecting hole 111. The gas in the outer sleeve 110 pushes the connecting plate 112, so that the connecting plate 112, the second driving rod 902 and the third driving rod 903 can remain in the open state; when the gas inside the shell 100 decreases (for example, leakage occurs or the gas supply is reduced), the gas entering the connecting hole 111 decreases, which is not enough to maintain the height of the connecting plate 112, the second driving rod 902 and the third driving rod 903. The connecting plate 112, the second driving rod 902 and the third driving rod 903 begin to fall under the action of gravity, and the second driving rod 902 and the third driving rod 903 move downward, pushing the connecting rod 400 to move to the left, so that the sealing plate 300 is embedded in the limiting groove 700 to close the valve.

[0088] In the present invention, by cleverly combining the drive assembly with the sealing assembly, the overall structure is made more compact, the number and complexity of parts are reduced, and thus potential failure points are reduced. Through the simulation and emulation functions, the operating status of the valve can be monitored and warned in advance, potential safety hazards can be discovered in time, and the probability of accidents can be reduced. The invention in the present invention can adapt to the gas power generation needs under different working conditions, improve the flexibility and adjustability of the system, and the relatively simple design and structure make the valve more convenient for maintenance and overhaul, reduce downtime, and save maintenance costs.

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0090] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety production simulation system based on gas-fired power generation, characterized by: The following steps are involved: Step S1, starting a safety simulation of the operation of the gas pipeline according to the maintenance requirements; Step S2, adjusting the valve status on the gas pipeline according to the maintenance requirements in step S1; Step S3, start the preview of line detection; according to the adjusted gas pipeline, detect whether the gas pipeline can normally supply gas to the generator set and meet the gas supply requirements of the generator set while meeting the maintenance requirements and gas outage maintenance; if it can meet the requirements, the adjustment of the gas pipeline has been completed; if it cannot meet the requirements, it is necessary to adjust the valve status on the gas pipeline and re-test; Step S4, ending the simulation, the operation of the gas pipeline meets the maintenance conditions, and actual operation can be carried out.

2. A safety production simulation system based on gas-fired power generation according to claim 1, characterized in that: Before conducting a safety simulation, you need to build a gas pipeline model. Building a gas pipeline model includes the following steps: Step A1, setting the attribute unit of the pipeline, the attribute unit includes pipeline, passage, valve and corner, which are used for the pipeline attribute information of the pipeline model input by the user; Step A2, setting the pipeline according to the pipeline node, the user establishes the pipeline node of the pipeline model on the model and sets the connection information of each pipeline node; wherein the pipeline node includes: the pipeline starting point, the pipeline end point and the key point of the pipeline path; Step A3, a unit for setting a pipeline path, wherein the user sets a connection path between pipeline nodes connected at both ends of the pipeline; wherein the connection path includes: one or more of a multi-pass pipeline, a pipeline corner, and a straight pipe connection; Step A4, pipeline generation, generates a pipeline model according to the pipeline attribute unit, pipeline node, connection information and connection path, and stores it in a computer storage file to complete pipeline generation.

3. A safety production simulation valve based on gas power generation, characterized by: The valve is used in the system according to any one of claims 1 to 2, the valve comprising a housing (100), a sealing assembly is arranged inside the housing (100), and a driving assembly is arranged on the housing (100); the driving assembly is connected to the sealing assembly and is used to drive the sealing assembly to seal the pipeline (500); The sealing assembly comprises an air hole (200), a sealing disk (300) and a connecting rod (400); wherein the air hole (200) is arranged on a protrusion (800) of the sealing disk (300), the connecting rod (400) is rotatably connected to one end of the sealing disk (300), and the other end of the connecting rod (400) is rotatably connected to the driving assembly.

4. A safety production simulation valve based on gas power generation according to claim 3, characterized in that: A pipe (500) is provided on the outer wall of the shell (100), one end of the pipe (500) is connected to the shell (100), and a flange (600) is provided on the other end of the pipe (500) and connected to other pipes via the flange (600).

5. A safety production simulation valve based on gas power generation according to claim 4, characterized in that: A limiting groove (700) is provided at the end of the pipeline (500), and the limiting groove (700) is used to cooperate with the sealing disk (300) to seal the pipeline (500).

6. A safety production simulation valve based on gas power generation according to claim 5, characterized in that: The driving assembly comprises a driving rod (900) and an outer sleeve (110); wherein one end of the driving rod (900) is arranged inside the shell (100) and connected to the connecting rod (400); the other end of the driving rod (900) passes through the outer sleeve (110) and extends to the outside of the outer sleeve (110); a connecting hole (111) is also arranged inside the outer sleeve (110); the connecting hole (111) is used to connect the outer sleeve (110) and the shell (100) so as to introduce the gas inside the shell (100) into the inside of the outer sleeve (110).

7. A safety production simulation valve based on gas power generation according to claim 6, characterized in that: The driving assembly also includes a connecting disk (112), which is arranged on the driving rod (900) and cooperates with a connecting hole (111) on the outer sleeve (110). The gas inside the shell (100) is introduced into the inner part of the outer sleeve (110) through the connecting hole (111), pushing the connecting disk (112) to move upward, thereby keeping the sealing disk (300) open.

8. The safety production simulation valve based on gas power generation according to claim 7 is characterized by: The connection plate (112) comprises a frame (113) and an elastic membrane (114), wherein the elastic membrane (114) is arranged in the middle of the frame (113).

9. A safety production simulation valve based on gas power generation according to claim 8, characterized in that: A baffle (115) is also provided at the lower part of the driving rod (900), and a support rod (116) cooperating with the driving rod (900) is provided inside the housing (100). A groove (117) is provided in the middle of the support rod (116), and the side of the groove (117) cooperates with the baffle (115) to limit the driving rod (900).

10. A safety production simulation valve based on gas power generation according to claim 9, characterized in that: A hand wheel (118) is also provided above the outer sleeve (110). The hand wheel (118) is connected to the driving rod (900) and is used to drive the driving rod (900) to open the pipeline (500).

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