Gas pipe network with leakage monitoring function

Abstract

The utility model discloses a gas pipe network with leakage monitoring, which comprises a gas pipeline and a master console, monitoring sections are arranged in the gas pipeline at intervals, each monitoring section comprises a communicating pipeline communicated with the gas pipeline, and the outer diameter of each communicating pipeline is smaller than the inner diameter of the gas pipeline; a monitoring plate directly facing the communicating pipeline is arranged at the tail end of the communicating pipeline in the gas pipeline, and the monitoring plate is slidably connected to the outer side of the communicating pipeline through a measuring pipeline; a spring is arranged on the outer side of the communicating pipeline, one end of the spring is connected to the measuring pipeline through a fixing plate, the other end of the spring is connected with a pressure sensor, and the pressure sensor is located at the end, close to the monitoring plate, of the communicating pipeline; the compression direction of the spring is consistent with the sliding direction of the measuring pipeline; and the pressure sensor is connected with the master console. The section of the gas pipeline where the leakage position is located is judged according to the monitoring data of the sensor, and then rapid determination is achieved, so that workers can complete maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe network detection, and in particular relates to a gas pipe network with leakage monitoring function. Background Art

[0002] In recent years, the gas pipeline network has been developing continuously, involving every corner and every field of life. Gas pipelines are mainly laid underground. The most common causes of pipeline leakage are corrosion due to contact with soil, damage by third parties and aging. Gas itself is flammable and explosive. The danger of leakage is extremely high and the waste caused is also amazing.

[0003] At present, pipeline network leakage detection is mainly done by manual inspection, which is labor-intensive, purposeless, difficult to locate, and inconvenient to find leakage points. Utility Model Content

[0004] The utility model provides a purpose of determining the section of the gas pipeline where the leakage is located based on the monitoring data of the sensor, and then quickly determining it so that the staff can complete the inspection and maintenance.

[0005] The utility model is realized by the following technical solutions:

[0006] A gas pipeline network with leakage monitoring comprises a gas pipeline and a main control console, wherein a monitoring section is installed at each interval in the gas pipeline, wherein the monitoring section comprises a connecting pipe connected to the gas pipeline, wherein the outer diameter of the connecting pipe is smaller than the inner diameter of the gas pipeline; a monitoring plate facing the connecting pipe is arranged at the end of the connecting pipe in the gas pipeline, wherein the monitoring plate is slidably connected to the outer side of the connecting pipe through the measuring pipe; a spring is arranged on the outer side of the connecting pipe, wherein one end of the spring is connected to the measuring pipe through a fixing plate, and the other end is connected to a pressure sensor, wherein the pressure sensor is located on one end of the connecting pipe close to the monitoring plate; the compression direction of the spring is consistent with the sliding direction of the measuring pipe; and the pressure sensor is connected to the main control console.

[0007] Preferably, the measuring pipeline is a through pipe, and both ends of the measuring pipeline are respectively connected to the gas pipelines at both ends of the communicating pipeline; a plurality of communicating ports are arranged on the side surface of the measuring pipeline close to one end of the monitoring plate.

[0008] Furthermore, an armature is installed on the side of the fixed plate away from the spring, and an electromagnet matching the armature is installed on the end of the outer side of the connecting pipe away from the pressure sensor, and the electromagnet is connected to the main control console; the monitoring plate is disc-shaped, and the diameter of the monitoring plate is larger than the inner diameter of the connecting pipe.

[0009] Furthermore, a limit plate is installed at one end of the measuring pipe away from the monitoring plate, and the diameter of the limit plate is larger than the outer diameter of the measuring pipe.

[0010] Furthermore, a conductive block is installed on the outside of the fixed plate and the connecting pipe respectively, and the two conductive blocks are connected to circuits respectively, and a connected circuit is formed when the two conductive blocks are in contact; an indicator light is installed on the circuit; the distance between the two conductive blocks is equal to the distance from the monitoring plate to the connecting pipe.

[0011] Furthermore, the conductive blocks are cylindrical, the flat surfaces of the two conductive blocks are arranged correspondingly, and the sides of the conductive blocks are provided with insulating layers.

[0012] Furthermore, the connecting pipe is covered with a transparent cover, and both ends of the transparent cover are fixed to the gas pipes at both ends of the monitoring section by screws respectively.

[0013] The technical solution of the utility model has at least the following beneficial effects:

[0014] A monitoring section is set up at intervals in the gas pipeline. The monitoring section monitors the intensity of the gas passing through, and the data of the monitored gas transportation volume is used as the standard by the pressure sensor. When the gas passes through the monitoring section, it must push the monitoring board. When the gas pipeline section leaks, the pressure sensor data monitored at the monitoring section at the end of the gas pipeline section has a cliff-like gap with the previous pressure sensor data. Based on this, it can be judged which section of the gas pipeline the leak is located in, and then quickly determined so that the staff can complete the maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 2 for Figure 1 A magnified image of

[0018] Figure 3 for Figure 1 Enlarged view of B.

[0019] Icons: 1-gas pipeline, 2-connecting pipeline, 3-monitoring board, 4-measuring pipeline, 41-limiting plate, 42-connecting port, 5-fixing plate, 6-spring, 7-pressure sensor, 8-electromagnet, 9-armature, 10-conductive block, 11-indicator light, 12-transparent cover. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings. Example 1

[0023] A gas pipeline network with leakage monitoring includes a gas pipeline 1 and a main control console. A monitoring node is installed on the gas pipeline 1 at intervals, and the interval is determined according to actual conditions. The smaller the interval, the higher the accuracy of the monitoring position; the larger the interval, the lower the cost of installing the monitoring node.

[0024] The monitoring section includes a connecting pipe 2, and both ends of the connecting pipe 2 are respectively connected to the gas pipeline 1, and the outer diameter of the connecting pipe 2 is smaller than the inner diameter of the gas pipeline 1. A monitoring plate 3 is arranged at the end of the connecting pipe 2, and the end refers to the connecting pipe 2 at the rear end along the gas transportation direction. The monitoring plate 3 is directly opposite to the connecting pipe 2, and is used to bear the impact of the gas in the gas pipeline 1. A measuring pipe 4 is installed on the detection plate, and the measuring pipe 4 is slidably connected to the outside of the connecting pipe 2, and the sliding direction of the measuring pipe 4 is the same as the axial direction of the connecting pipe 2. A spring 6 is arranged on the outside of the connecting pipe 2, one end of the spring 6 is connected to the measuring pipe 4 through a fixing plate 5, and the other end is connected to a pressure sensor 7, and the pressure sensor 7 is located on the end of the connecting pipe 2 close to the monitoring plate 3; the compression direction of the spring 6 is consistent with the sliding direction of the measuring pipe 4; the pressure sensor 7 is connected to the main control console.

[0025] During gas transportation under normal conditions, the gas pushes the monitoring plate 3, which compresses the spring 6 and obtains data from a pressure sensor 7. In the absence of leakage, the data from the pressure sensor 7 obtained by all monitoring nodes are almost the same. The monitoring node consumes a certain amount of the kinetic energy of the gas. Setting the distance from the monitoring plate 3 to the connecting pipe 2 so that the gas has a smoother passing angle can make the kinetic energy of the gas almost non-consumable. Under certain consumption conditions, the data from the pressure sensors 7 of all monitoring nodes should be arithmetically reduced along the direction of gas transportation. After a section of gas pipeline 1 leaks, the data from the pressure sensors 7 obtained by the monitoring nodes at both ends of the leaking section drop sharply. Based on this, the specific location of the leaking section of the gas pipeline 1 can be monitored at the main control console.

[0026] Furthermore, the measuring pipe 4 is a through pipe, and the two ends of the measuring pipe 4 are respectively connected to the gas pipe 1 at the two ends of the communicating pipe 2; a plurality of communicating ports 42 are arranged on the side of the measuring pipe 4 near the end of the monitoring plate 3. The arrangement of the communicating pipe 2 reduces the gas flow rate of the gas pipe 1, so the measuring pipe 4 is arranged as a through pipe to assist the gas flow rate and increase the flow rate.

[0027] Furthermore, an armature 9 is installed on the side of the fixed plate 5 away from the spring 6, and an electromagnet 8 matching the armature 9 is installed on the end of the outer side of the connecting pipe away from the pressure sensor 7, and the electromagnet 8 is connected to the main control console; the monitoring plate 3 is disc-shaped, and the diameter of the monitoring plate 3 is larger than the inner diameter of the connecting pipe 2. In view of the time difference between the main control console and the on-site inspection, a temporary blocking method that can be controlled by the main control console is set. The circuit of each electromagnet 8 is independently connected. After the main control determines the leakage section of the gas pipeline 1, the previous monitoring section of the leakage section of the gas pipeline 1 is controlled to be closed. After the electromagnet 8 is energized, a magnetic force is generated, thereby attracting the armature 9 to the electromagnet 8. Synchronously, the monitoring plate 3 moves toward the connecting pipe 2, thereby blocking the connecting pipe 2, stopping the transportation of gas, and avoiding gas waste. The measuring pipe 4 is used as an auxiliary pipe to increase the flow rate. The connecting port 42 of the measuring pipe 4 is arranged on the side of the measuring pipe 4 close to one end of the monitoring plate 3. When the monitoring plate 3 blocks the connecting pipe 2, the connecting port 42 is blocked by the inner wall of the gas pipe 1.

[0028] Furthermore, a limit plate 41 is installed at one end of the measuring pipe 4 away from the monitoring plate 3, and the diameter of the limit plate 41 is larger than the outer diameter of the measuring pipe 4. The limit plate 41 is used to limit the moving distance of the measuring pipe 4 to prevent the measuring pipe 4 from exceeding the limit and causing the gas pipeline 1 to be connected to the outside.

[0029] Furthermore, a conductive block 10 is installed on the outside of the fixing plate 5 and the connecting pipe 2 respectively. The two conductive blocks 10 are connected to circuits respectively. When the two conductive blocks 10 are in contact, a connected circuit is formed. An indicator light 11 is installed on the circuit. The distance between the two conductive blocks 10 is equal to the distance from the monitoring plate 3 to the connecting pipe 2. There may be differences between the information of the main control desk and the patrol personnel. The information of the main control desk may guide the patrol personnel to the approximate area in actual conditions. The detailed location is related to the laying of the gas pipeline 1, while the data of the main control desk only has the number of the monitoring section at the leaking section. When the electromagnet 8 is used to complete the plugging operation of the connecting pipe 2, the conductive block 10 is connected simultaneously. After the connection, the indicator light 11 lights up, so that the on-site patrol personnel can quickly determine the location.

[0030] Preferably, the conductive block 10 is cylindrical, the flat surfaces of the two conductive blocks 10 are arranged correspondingly, and insulating layers are arranged on the sides of the conductive blocks 10. The insulating layers are arranged to avoid unexpected interference from the outside as much as possible.

[0031] Furthermore, the connecting pipe 2 is covered with a transparent cover 12, and the two ends of the transparent cover 12 are respectively fixed to the gas pipe 1 at the two ends of the monitoring section by screws. The gas pipeline 1 may be laid underground, and the transparent cover 12 can prevent the corrosion of the monitoring section components, and the transparent cover 12 does not affect the observation of the indicator light 11.

[0032] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A gas pipeline network with leakage monitoring, comprising a gas pipeline (1) and a main control console, characterized in that: A monitoring section is installed at intervals in the gas pipeline (1), the monitoring section comprising a connecting pipeline (2) connected to the gas pipeline (1), the outer diameter of the connecting pipeline (2) being smaller than the inner diameter of the gas pipeline (1); a monitoring plate (3) facing the connecting pipeline (2) is arranged at the end of the connecting pipeline (2) in the gas pipeline (1), the monitoring plate (3) being slidably connected to the outer side of the connecting pipeline (2) through a measuring pipeline (4); a spring (6) is arranged on the outer side of the connecting pipeline (2), one end of the spring (6) is connected to the measuring pipeline (4) through a fixing plate (5), and the other end is connected to a pressure sensor (7), the pressure sensor (7) being located on one end of the connecting pipeline (2) close to the monitoring plate (3); the compression direction of the spring (6) is consistent with the sliding direction of the measuring pipeline (4); the pressure sensor (7) is connected to a main control console.

2. A gas pipeline network with leakage monitoring according to claim 1, characterized in that: The measuring pipeline (4) is a through pipe, and the two ends of the measuring pipeline (4) are respectively connected to the gas pipelines (1) at the two ends of the connecting pipeline (2); a plurality of connecting ports (42) are provided on the side surface of the measuring pipeline (4) close to one end of the monitoring plate (3).

3. A gas pipeline network with leakage monitoring according to claim 1, characterized in that: An armature (9) is installed on the side of the fixed plate (5) away from the spring (6), and an electromagnet (8) matching the armature (9) is installed on the end of the outer side of the connecting pipe (2) away from the pressure sensor (7), and the electromagnet (8) is connected to the main control console; the monitoring plate (3) is disc-shaped, and the diameter of the monitoring plate (3) is larger than the inner diameter of the connecting pipe (2).

4. A gas pipeline network with leakage monitoring according to claim 2, characterized in that: A limit plate (41) is installed at one end of the measuring pipe (4) away from the monitoring plate (3), and the diameter of the limit plate (41) is larger than the outer diameter of the measuring pipe (4).

5. A gas pipeline network with leakage monitoring according to claim 3, characterized in that: A conductive block (10) is respectively installed on the outside of the fixing plate (5) and the connecting pipe (2); the two conductive blocks (10) are respectively connected to a circuit, and a connected circuit is formed when the two conductive blocks (10) are in contact; an indicator light (11) is installed on the circuit; and the distance between the two conductive blocks (10) is equal to the distance from the monitoring plate (3) to the connecting pipe (2).

6. A gas pipeline network with leakage monitoring according to claim 5, characterized in that: The conductive blocks (10) are cylindrical, the flat surfaces of the two conductive blocks (10) are arranged correspondingly, and the sides of the conductive blocks (10) are both provided with insulating layers.

7. A gas pipeline network with leakage monitoring according to claim 5, characterized in that: The connecting pipe (2) is covered with a transparent cover (12), and the two ends of the transparent cover (12) are respectively fixed to the gas pipe (1) at the two ends of the monitoring section by screws.

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