Natural gas pipeline pressure detection alarm device

Abstract

The utility model belongs to the technical field of natural gas detection, and particularly relates to a natural gas pipeline pressure detection alarm device which comprises a first pipeline and a second pipeline, the opposite ends of the first pipeline and the second pipeline are connected through flanges, a detection assembly is installed outside the flange connecting position, and the detection assembly comprises a threaded cylinder and a threaded ring. The threaded cylinder can be in threaded connection with the threaded ring, the first pipeline penetrates through the threaded cylinder, and the threaded ring is fixedly installed outside the second pipeline; according to the utility model, a relatively sealed detection space is formed outside the flange through cooperation of the threaded cylinder, the threaded ring and the threaded sleeve and is used for preventing natural gas from overflowing due to poor sealing effect of the flange, detection is carried out through the pressure sensor and the gas detector, an alarm is given when natural gas leaks, and the threaded cylinder is rotated and opened during maintenance. And compared with the prior art, the sealing device has the advantage that the operation space is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas detection, in particular to a natural gas pipeline pressure detection alarm device. Background Art

[0002] A natural gas pipeline refers to a pipeline that transports natural gas (including associated gas produced in oil fields) from the mining site or processing plant to the urban gas distribution center or industrial enterprise users. When the natural gas pipeline is connected, the two pipelines are installed and fixed by flanges using bolts and nuts. If the sealing effect between the two pipelines is not good, the natural gas in the pipeline will easily escape from the gap during transportation, causing natural gas leakage, which may cause safety accidents.

[0003] An existing Chinese patent with announcement number CN218819675U discloses a natural gas pipeline leakage detection device, including a first pipeline and a second pipeline, wherein the opposite ends of the first pipeline and the second pipeline are fixedly connected, and a detection box is fixedly installed on the side surfaces of the first pipeline and the second pipeline, a through groove is opened at the center of the top of the detection box, and two return springs are fixedly connected to the top of the detection box, and the top ends of the two return springs are fixedly connected to touch plates.

[0004] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device seals and locks the pipes in the detection box through square grooves by construction workers, and the internal space of the shell is narrow, which makes it inconvenient for maintenance tools to penetrate deep to reinforce the bolts, and needs to be improved; therefore, a natural gas pipeline pressure detection alarm device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a natural gas pipeline pressure detection and alarm device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a natural gas pipeline pressure detection alarm device described in the utility model comprises a pipeline 1 and a pipeline 2, wherein the pipeline 1 and the pipeline 2 are flange-connected at opposite ends, a detection component is installed on the outside of the flange connection, the detection component comprises a threaded barrel and a threaded ring, the threaded barrel can be threadedly connected with the threaded ring, the pipeline 1 passes through the threaded barrel, the threaded ring is fixedly installed on the outside of the pipeline 2, two upper and lower detection ports are installed on the side wall of the threaded ring, a limit position component is installed inside the threaded barrel, the limit position component comprises a plurality of electric push rods, the electric push rods are fixedly installed on the inner wall of the threaded barrel, a controller module, an alarm module and a wireless network connection module are installed on the side wall of the threaded ring, the controller module is sequentially connected to the alarm module, the wireless network connection module, the pressure sensor, the gas detector and The electric push rod is electrically connected. After the connection between pipeline one and pipeline two is completed, the threaded barrel is rotated to move toward the threaded ring, so that the threaded barrel is threadedly connected to the threaded ring, and then a relatively sealed detection space is formed outside the flange through the cooperation of the threaded barrel, the threaded ring and the threaded sleeve, which is used to prevent the natural gas from overflowing due to poor flange sealing effect. At the same time, the gas and air pressure inside the detection space can be monitored by the pressure sensor and the gas detector. When the natural gas leaks, the gas and air pressure will change accordingly, and then the pressure sensor and the gas detector transmit signals to the controller module. The controller module generates an alarm through the alarm module, and remotely transmits the leakage information to the operator through the wireless network connection module, which is convenient for maintenance personnel to quickly find the leakage point and perform maintenance. During maintenance, by rotating and opening the threaded barrel, the operator can reinforce the seal at the flange connection, which increases the operating space compared to the existing technology.

[0007] Preferably, the internal thread of the threaded barrel is connected with a threaded sleeve, and the threaded sleeve is fixedly installed on the outside of the pipeline.

[0008] Preferably, the upper and lower detection ports are respectively fixedly connected with a pressure sensor and a gas detector, and the gas detector can be a natural gas detector.

[0009] Preferably, the outer edge of the threaded ring is fixedly connected to a limiting convex layer, and the moving position of the threaded barrel is limited by the limiting convex layer, so that the clamping column is aligned with the first clamping groove and the second clamping groove.

[0010] Preferably, the driving end of the electric push rod is fixedly connected to a mounting seat.

[0011] Preferably, two clamping columns are symmetrically fixedly connected to the bottom of the mounting seat.

[0012] Preferably, the limit assembly also includes two card slots 1 and 2, and the card slot 1 is symmetrically opened on both sides of the flange of pipe 1, and the card slot 2 is symmetrically opened on both sides of the flange of pipe 2. After the threaded barrel is connected to the threaded ring, the electric push rod is controlled to run by the controller, and the electric push rod is extended to make the card column inserted into the inside of the card slot 1 and the card slot 2 respectively, thereby realizing secondary card connection reinforcement on the flanges of pipe 1 and pipe 2, effectively preventing the natural gas from overflowing due to poor flange sealing effect, and at the same time, the position of the threaded barrel can be fixed to prevent the threaded barrel from loosening and detaching from the threaded ring, affecting the detection effect.

[0013] Preferably, a certain space is left between the threaded ring and the flange of the second pipe for installing bolts.

[0014] Preferably, a certain space is reserved between the threaded sleeve and the flange of the pipe for installing bolts.

[0015] The utility model is beneficial in that:

[0016] 1. The utility model forms a relatively sealed detection space outside the flange through the cooperation of the threaded barrel, the threaded ring and the threaded sleeve, which is used to prevent the natural gas from leaking due to poor flange sealing. At the same time, it detects through the pressure sensor and the gas detector, and generates an alarm when the natural gas leaks. During maintenance, the threaded barrel can be rotated and opened to facilitate the operator to reinforce the seal at the flange connection. Compared with the existing technology, the operating space is increased.

[0017] 2. The utility model extends the electric push rod to insert the clamping column into the inside of the first clamping groove and the second clamping groove respectively, thereby realizing secondary clamping reinforcement on the flanges of the pipes one and two, effectively preventing the natural gas from overflowing due to poor flange sealing effect, and at the same time fixing the position of the threaded barrel to prevent the threaded barrel from loosening and detaching from the threaded ring, affecting the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the threaded barrel of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the detection component of the utility model;

[0022] Figure 4 For this utility model Figure 3 Side view of

[0023] Figure 5 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0024] In the figure: 1. Pipeline 1; 2. Pipeline 2; 3. Detection assembly; 31. Threaded barrel; 32. Threaded ring; 33. Detection port; 34. Pressure sensor; 35. Gas detector; 36. Limiting convex layer; 37. Threaded sleeve; 4. Limiting assembly; 41. Electric push rod; 42. Mounting seat; 43. Clamping column; 44. Clamping slot 1; 45. Clamping slot 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5As shown, a natural gas pipeline pressure detection alarm device includes a pipeline 1 and a pipeline 2. The pipeline 1 and the pipeline 2 are flange-connected at opposite ends. A detection component 3 is installed on the outside of the flange connection. The detection component 3 includes a threaded barrel 31 and a threaded ring 32. The threaded barrel 31 can be threadedly connected with the threaded ring 32. The pipeline 1 passes through the threaded barrel 31. The threaded ring 32 is fixedly installed on the outside of the pipeline 2. The side wall of the threaded ring 32 is installed with upper and lower detection ports 33. The inside of the threaded barrel 31 is installed with a limit assembly 4. The limit assembly 4 includes a plurality of electric push rods 41. The electric push rods 41 are fixedly installed on the inner wall of the threaded barrel 31. The side wall of the threaded ring 32 is installed with a controller module, an alarm module and a wireless network connection module. The controller module is electrically connected to the alarm module, the wireless network connection module, the pressure sensor 34, the gas detector 35 and the electric push rod 41 in sequence. The pipeline 1 and the pipeline 2 are flange-connected. After the connection is completed, the threaded barrel 31 is rotated to move toward the threaded ring 32, so that the threaded barrel 31 is threadedly connected with the threaded ring 32, and then a relatively sealed detection space is formed outside the flange through the cooperation of the threaded barrel 31, the threaded ring 32 and the threaded sleeve 37, which is used to prevent the natural gas from overflowing due to poor flange sealing effect. At the same time, the gas and air pressure inside the detection space can be monitored by the pressure sensor 34 and the gas detector 35. When the natural gas leaks, the gas and air pressure will change accordingly, and then the pressure sensor 34 and the gas detector 35 transmit signals to the controller module. The controller module generates an alarm through the alarm module, and remotely transmits the leakage information to the operator through the wireless network connection module, so that the maintenance personnel can quickly find the leakage point and perform maintenance. During maintenance, by rotating and opening the threaded barrel 31, the operator can reinforce the seal at the flange connection, which increases the operating space compared with the prior art.

[0027] The internal thread of the threaded barrel 31 is connected with a threaded sleeve 37, and the threaded sleeve 37 is fixedly installed on the outside of the pipe 1.

[0028] The upper and lower detection ports 33 are fixedly connected with a pressure sensor 34 and a gas detector 35 respectively.

[0029] The outer edge of the threaded ring 32 is fixedly connected to a limiting convex layer 36 , and the limiting convex layer 36 limits the moving position of the threaded barrel 31 so that the clamping column 43 is aligned with the clamping groove 1 44 and the clamping groove 2 45 .

[0030] The driving end of the electric push rod 41 is fixedly connected to a mounting seat 42 .

[0031] Two clamping columns 43 are symmetrically fixedly connected to the bottom of the mounting seat 42 .

[0032] The limit assembly 4 also includes two card slots 1 44 and card slot 2 45. The card slot 1 44 is symmetrically arranged on both sides of the flange of the pipeline 1, and the card slot 2 45 is symmetrically arranged on both sides of the flange of the pipeline 2. After the threaded barrel 31 is connected to the threaded ring 32, the electric push rod 41 is controlled to operate by the controller, and the electric push rod 41 is extended to make the card column 43 respectively inserted into the inside of the card slot 1 44 and the card slot 2 45, thereby realizing secondary card connection reinforcement on the flanges of the pipeline 1 and the pipeline 2, effectively preventing the natural gas from overflowing due to poor flange sealing effect, and at the same time, the position of the threaded barrel 31 can be fixed to prevent the threaded barrel 31 from loosening and detaching from the threaded ring 32 to affect the detection effect.

[0033] A certain space is left between the threaded ring 32 and the flange of the pipe 2 for installing bolts.

[0034] A certain space is left between the threaded sleeve 37 and the flange of the pipe 1 for installing bolts.

[0035] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0036] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art.

[0037] Working principle: after the connection between pipeline 1 and pipeline 2 is completed, the threaded barrel 31 is rotated to move toward the threaded ring 32, so that the threaded barrel 31 is threadedly connected with the threaded ring 32, and then a relatively sealed detection space is formed outside the flange through the cooperation of the threaded barrel 31, the threaded ring 32 and the threaded sleeve 37, which is used to prevent the natural gas from overflowing due to poor flange sealing effect. At the same time, the gas and air pressure inside the detection space can be monitored by the pressure sensor 34 and the gas detector 35. When the natural gas leaks, the gas and air pressure will change accordingly, and then the pressure sensor 34 and the gas detector 35 transmit signals to the controller module. The controller module generates an alarm through the alarm module, and remotely transmits the leakage information to the operator through the wireless network connection module, which is convenient for maintenance personnel to quickly find the leakage point and perform maintenance. During maintenance, by rotating and opening the threaded barrel 31, it is convenient for the operator to reinforce the seal at the flange connection. Compared with the existing technology, the operating space is increased;

[0038] After the threaded barrel 31 is connected to the threaded ring 32, the controller controls the electric push rod 41 to run, and the electric push rod 41 is extended to allow the clamping column 43 to be inserted into the inside of the clamping groove 1 44 and the clamping groove 2 45 respectively, thereby realizing secondary clamping reinforcement on the flanges of the pipeline 1 and the pipeline 2, effectively preventing the natural gas from overflowing due to poor flange sealing effect, and at the same time, the position of the threaded barrel 31 can be fixed to prevent the threaded barrel 31 from loosening and detaching from the threaded ring 32, affecting the detection effect.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A natural gas pipeline pressure detection alarm device, comprising pipeline 1 (1) and pipeline 2 (2), characterized in that: The pipe 1 (1) and the pipe 2 (2) are flange-connected at opposite ends. A detection assembly (3) is installed outside the flange connection. The detection assembly (3) comprises a threaded barrel (31) and a threaded ring (32). The threaded barrel (31) can be threadedly connected to the threaded ring (32). The pipe 1 (1) passes through the threaded barrel (31). The threaded ring (32) is fixedly installed outside the pipe 2 (2). The side wall of the threaded ring (32) is provided with two upper and lower detection ports (33). A limit assembly (4) is installed inside the threaded barrel (31). The limit assembly (4) comprises a plurality of electric push rods (41). The electric push rods (41) are fixedly installed on the inner wall of the threaded barrel (31). A controller module, an alarm module and a wireless network connection module are installed on the side wall of the threaded ring (32).

2. The natural gas pipeline pressure detection alarm device according to claim 1 is characterized in that: The internal thread of the threaded barrel (31) is connected to a threaded sleeve (37), and the threaded sleeve (37) is fixedly installed on the outside of the pipeline (1).

3. The natural gas pipeline pressure detection alarm device according to claim 1 is characterized in that: The upper and lower detection ports (33) are respectively fixedly connected with a pressure sensor (34) and a gas detector (35).

4. The natural gas pipeline pressure detection alarm device according to claim 1 is characterized in that: The outer edge of the threaded ring (32) is fixedly connected to a limiting convex layer (36).

5. The natural gas pipeline pressure detection and alarm device according to claim 1 is characterized in that: The driving end of the electric push rod (41) is fixedly connected to a mounting seat (42).

6. The natural gas pipeline pressure detection and alarm device according to claim 5 is characterized in that: Two clamping columns (43) are symmetrically fixedly connected to the bottom of the mounting seat (42).

7. The natural gas pipeline pressure detection and alarm device according to claim 1 is characterized in that: The limit assembly (4) further comprises two clamping grooves 1 (44) and 2 (45), wherein the clamping groove 1 (44) is symmetrically arranged on both sides of the flange of the pipe 1 (1), and the clamping groove 2 (45) is symmetrically arranged on both sides of the flange of the pipe 2 (2).

8. The natural gas pipeline pressure detection and alarm device according to claim 1 is characterized in that: A certain space is left between the threaded ring (32) and the flange of the second pipe (2) for installing bolts.

9. The natural gas pipeline pressure detection and alarm device according to claim 2 is characterized in that: A certain space is left between the threaded sleeve (37) and the flange of the pipe 1 (1) for installing bolts.

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