Hydrogen conveying composite pipeline leakage monitoring device

Abstract

The invention provides a leakage monitoring device for a hydrogen conveying composite pipeline, and relates to the field of hydrogen conveying pipes. The hydrogen conveying composite pipeline leakage monitoring device comprises a conveying pipe, a detection mechanism is arranged in the middle of the outer wall of the conveying pipe, the detection mechanism comprises a fixing strip and a cavity, data lines are fixedly connected to the interiors of the front end and the rear end of the fixing strip, a plurality of supporting blocks are fixedly connected to the interior of the cavity, and the supporting blocks are fixedly connected to the interior of the cavity. A first mounting cylinder is fixedly connected to the rear end of the middle of the upper surface of the fixing strip, and a gas sensor is arranged at the upper end in the first mounting cylinder. According to the splicing mechanism of the hydrogen conveying composite pipeline, the splicing pipes and the splicing rings are arranged, under connection of the splicing rings, a user can adjust the number of the conveying pipes between the splicing pipes according to requirements, and therefore the distance between the pipelines needing to be closed and isolated is adjusted; and therefore, the application range and the use convenience of the device are improved.

Description

Technical Field

[0001] The invention relates to the field of hydrogen delivery pipes, and in particular to a leakage monitoring device for a hydrogen delivery composite pipeline. Background Art

[0002] Composite hydrogen pipelines are designed for efficient, safe, and economical hydrogen transportation. Combining the strengths of different materials, they aim to address some of the inherent challenges of traditional metal pipelines in hydrogen transportation. Hydrogen is a colorless, tasteless, odorless, extremely light, flammable, and reducing gas. As one of the most abundant elements, it has a wide range of applications in industry, energy, and the chemical industry.

[0003] However, traditional pipelines usually rely on manual inspections and regular maintenance, and are unable to achieve automatic detection and immediate response to real-time pressure changes or leaks. When leaks or pressure abnormalities occur, automatic sealing measures cannot be taken quickly, resulting in large amounts of hydrogen leakage, and it is impossible to accurately detect tiny pipe wall damage or hidden dangers in advance.

[0004] Therefore, those skilled in the art provide a hydrogen transport composite pipeline leakage monitoring device to solve the problems raised in the above background technology. Summary of the Invention

[0005] (1) Technical problems solved In view of the shortcomings of the existing technology, the present invention provides a hydrogen transportation composite pipeline leakage monitoring device, which solves the problem of being unable to promptly close the hydrogen transportation when the pipeline is damaged and reduce hydrogen leakage.

[0006] (2) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A hydrogen transport composite pipeline leakage monitoring device comprises a transport pipe, a detection mechanism is provided in the middle of the outer wall of the transport pipe, the detection mechanism comprises a fixing bar and a chamber, the interiors of the front end and rear end of the fixing bar are fixedly connected to data cables, the interior of the chamber is fixedly connected to a plurality of support blocks, the rear end of the middle portion of the upper surface of the fixing bar is fixedly connected to a first mounting cylinder, the upper end of the interior of the first mounting cylinder is provided with a gas sensor, the front end of the middle portion of the upper surface of the fixing bar is fixedly connected to a second mounting cylinder, the upper end of the interior of the second mounting cylinder is provided with a pressure sensor, the centers of the lower surfaces of the gas sensor and the pressure sensor are fixedly connected to a detection tube, the lower end of the outer wall of the detection tube is fixedly connected to a plurality of sealing rings, and the upper end of the outer wall of the detection tube is rotatably connected to a rotating block; The front end and rear end of the conveying tube are provided with a splicing mechanism, and the splicing mechanism includes a limit clamping ring, a splicing tube and a splicing ring, and the front end and rear end outer walls of the splicing tube are fixedly connected with threaded rods on all sides, and the lower parts of the front end and rear end outer walls of the splicing tube are snap-fitted with a lower reinforcement ring, and the upper parts of the front end and rear end outer walls of the splicing tube are snap-fitted with an upper reinforcement ring, and the front end and rear end of the inner wall of the splicing tube are both provided with a limit clamping groove, and the upper end of the middle part of the inner wall of the splicing tube is rotatably connected to a rotating rod, and the lower end of the outer wall of the rotating rod is fixedly connected to a valve ball, and a gear is fixedly connected to the center of the upper surface of the rotating rod, and the middle part of the upper end of the outer wall of the splicing tube is fixedly connected to a control seat, and one side of the rear end of the control seat is fixedly connected to a servo motor, and the output end of the servo motor is fixedly connected to a worm gear, and the other side of the rear end of the control seat is fixedly connected to an electronic component module.

[0007] Through the above technical solution, the gas sensor and pressure sensor installed in the hydrogen transportation composite pipeline are installed in the installation tube of the transportation pipe through threaded blocks and sealing rings, which enables users to maintain and replace sensors that have been used for a long time more conveniently and quickly, so as to improve the detection accuracy and service life.

[0008] Furthermore, the delivery pipe includes an inner layer, an inner wall of the inner layer is tightly attached to an inner lining layer, an outer wall of the inner layer is tightly attached to a reinforcing layer, and an outer wall of the reinforcing layer is tightly attached to an outer layer; Through the above technical solution, the double-layered delivery pipe can improve the safety of the delivery pipe during use.

[0009] Furthermore, the fixing bar is fixedly connected to the center of the upper end of the outer wall of the delivery pipe, both ends of the data line are fixedly connected to data connectors, the outer wall of the data connector is snap-fitted with a screw cap, and the outer walls of the gas sensor and the pressure sensor are fixedly connected to the first data interface; Through the above technical solution, the gas sensor and the pressure sensor can be transmitted to the central processing device through the splicing mechanism.

[0010] Furthermore, the chamber is opened inside the delivery pipe, the upper end of the inner wall of the first mounting tube is provided with a first thread groove, the upper end of the inner wall of the second mounting tube is provided with a second thread groove, the second mounting tube passes through the delivery pipe and is fixedly connected to the chamber, and the lower surface of the rotating block is fixedly connected to a threaded block; Through the above technical solution, the gas sensor and the pressure sensor can be threadedly installed on the delivery pipe, and the gas sensor can detect the gas in the chamber.

[0011] Furthermore, the limiting clamps are respectively fixedly connected to the outer walls of the front end and the rear end of the delivery pipe, a sealing block is fixedly connected to the middle of the outer wall of the limiting clamp, and a sealing groove is opened on the inner wall of the limiting groove; With the above technical solution, the sealing groove and the sealing block are engaged with each other, thereby achieving a sealed connection between the delivery pipe and the splicing pipe.

[0012] Furthermore, the splicing tube is snap-fitted to the front end of the outer wall of the delivery tube, the splicing ring is snap-fitted to the rear end of the outer wall of the delivery tube, the front end of the outer wall of the threaded rod is threadedly fitted with a locking nut, and both sides of the upper surface of the lower reinforcement ring are threadedly fitted with connecting screws; Through the above technical solution, the user can clamp and install the lower reinforcement ring and the upper reinforcement ring on the splicing pipe by connecting screws, and fix the splicing pipe between the two conveying pipes by locking nuts.

[0013] Furthermore, a sealing block is fixedly connected to the center of the inner wall of the spliced ​​pipe, and the gear is engaged with the worm; Through the above technical solution, the servo motor can rotate the valve ball, and then close the splicing pipe through the sealing block.

[0014] Furthermore, the outer walls of the front and rear ends of the control seat are fixedly connected with a second data interface, and the center of the upper end of the outer wall of the splicing ring is fixedly connected with a data connection block; With the above technical solution, the second data interface and the data connection block are provided so that data transmission and connection can be performed between the splicing mechanisms.

[0015] (3) Beneficial effects The present invention provides a hydrogen transport composite pipeline leakage monitoring device, which has the following beneficial effects: 1. The present invention provides a hydrogen transmission composite pipeline leakage monitoring device. Compared with traditional hydrogen transmission composite pipelines, the hydrogen transmission composite pipeline is respectively provided with a detection mechanism and a splicing mechanism. Under the detection of the pressure sensor, when the pressure value in one section of the transmission pipe exceeds or falls below the preset pressure value, the servo motors at both ends of the transmission pipe will automatically start under the control of the electronic component module, and the transmission pipe will be closed by rotating the valve ball to stop use, thereby reducing the possibility of the expansion of hydrogen leakage, and at the same time sending an alarm signal to the central processing equipment. A chamber is opened in the transmission pipe, and the transmission pipe with damaged inner layer can be identified and detected in conjunction with the gas sensor, thereby further improving the accuracy of the device for hydrogen transmission composite pipeline leakage monitoring, and thus enabling the device to detect internal damaged transmission pipes in advance.

[0016] 2. The present invention provides a hydrogen transmission composite pipeline leakage monitoring device. Compared with traditional hydrogen transmission composite pipelines, the gas sensor and pressure sensor provided in this hydrogen transmission composite pipeline are both installed in the installation tube of the transmission pipe through a threaded block and a sealing ring. This allows users to more conveniently and quickly maintain and replace sensors that have been used for a long time, thereby improving detection accuracy and service life; 3. The present invention provides a leakage monitoring device for a hydrogen transportation composite pipeline. Compared with traditional hydrogen transportation composite pipelines, the splicing mechanism of the hydrogen transportation composite pipeline is respectively provided with a splicing tube and a splicing ring. Under the connection of the splicing ring, the user can adjust the number of transportation pipes between the splicing tubes according to needs, thereby adjusting the distance between the pipelines required for closed isolation, thereby improving the scope of application and convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the fixing strip of the present invention; Figure 3 This is a schematic structural diagram of the upper reinforcement ring of the present invention; Figure 4 This is a structural diagram of the splicing tube of the present invention; Figure 5 This is a schematic structural diagram of the control seat of the present invention; Figure 6 It is a structural schematic diagram of the limiting clamp ring of the present invention; Figure 7 for Figure 6 A is an enlarged schematic diagram; Figure 8 It is a structural schematic diagram of the delivery pipe of the present invention; Figure 9 It is a structural schematic diagram of the splicing ring of the present invention.

[0018] Wherein, 1, conveying pipe; 101, inner layer; 102, inner lining layer; 103, reinforcement layer; 104, outer layer; 2. Detection mechanism; 201. Fixing bar; 202. Data cable; 203. Data connector; 204. Screw cap; 205. Chamber; 206. Support block; 207. First mounting cylinder; 208. First threaded groove; 209. Gas sensor; 2010. Second mounting cylinder; 2011. Second threaded groove; 2012. Pressure sensor; 2013. First data interface; 2014. Detection tube; 2015. Sealing ring; 2016. Rotating block; 2017. Threaded block; 3. Splicing mechanism; 301. Limiting clamp; 302. Sealing block; 303. Splicing tube; 304. Threaded rod; 305. Locking nut; 306. Lower reinforcement ring; 307. Connecting screw; 308. Upper reinforcement ring; 309. Limiting slot; 3010. Sealing slot; 3011. Sealing block; 3012. Rotating rod; 3013. Valve ball; 3014. Gear; 3015. Control seat; 3016. Second data interface; 3017. Servo motor; 3018. Worm; 3019. Electronic component module; 3020. Splicing ring; 3021. Data connection block. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] Example: like Figure 1 、 2 As shown in Figures 6 and 7, an embodiment of the present invention provides a leakage monitoring device for a hydrogen transportation composite pipeline, comprising a transportation pipe 1, a detection mechanism 2 is provided in the middle of the outer wall of the transportation pipe 1, the detection mechanism 2 comprises a fixing bar 201 and a chamber 205, the interiors of the front end and rear end of the fixing bar 201 are fixedly connected to a data line 202, the interior of the chamber 205 is fixedly connected to a plurality of support blocks 206, the rear end of the middle portion of the upper surface of the fixing bar 201 is fixedly connected to a first mounting cylinder 207, the upper end of the interior of the first mounting cylinder 207 is provided with a gas sensor 209, the front end of the middle portion of the upper surface of the fixing bar 201 is fixedly connected to a second mounting cylinder 2010, the upper end of the interior of the second mounting cylinder 2010 is provided with a pressure sensor 2012, the centers of the lower surfaces of the gas sensor 209 and the pressure sensor 2012 are fixedly connected to a detection tube 2014, the lower end of the outer wall of the detection tube 2014 is fixedly connected to a plurality of sealing rings 2015, and the upper end of the outer wall of the detection tube 2014 is rotatably connected to a rotating block 2016; The front and rear ends of the delivery pipe 1 are provided with a splicing mechanism 3, which includes a limit clamping ring 301, a splicing pipe 303 and a splicing ring 3020. The front and rear ends of the splicing pipe 303 are fixedly connected with threaded rods 304 around the outer walls, and the lower parts of the front and rear ends of the outer walls are snap-fitted with a lower reinforcement ring 306. The upper parts of the front and rear ends of the outer walls are snap-fitted with an upper reinforcement ring 308. The front and rear ends of the inner walls of the splicing pipe 303 are provided with a limit clamping groove 309. The upper end of the middle part of the inner wall of the splicing pipe 303 is rotatably connected to a rotating rod 3012. The lower end of the outer wall of the rotating rod 3012 is fixedly connected to a valve ball 3013. The center of the upper surface of the rotating rod 3012 is fixedly connected There is a gear 3014, and a control seat 3015 is fixedly connected to the middle of the upper end of the outer wall of the splicing tube 303. A servo motor 3017 is fixedly connected to one side of the rear end of the control seat 3015, and a worm 3018 is fixedly connected to the output end of the servo motor 3017. An electronic component module 3019 is fixedly connected to the other side of the rear end of the control seat 3015. The splicing mechanism 3 of the hydrogen transport composite pipeline is respectively provided with a splicing tube 303 and a splicing ring 3020. Under the connection of the splicing ring 3020, the user can adjust the number of transport pipes 1 between the splicing tubes 303 according to needs, thereby adjusting the distance between the pipelines required for closed isolation, thereby improving the scope of application and convenience of use of the device.

[0021] like Figure 2 、 7 As shown in Figure 8, the delivery pipe 1 includes an inner layer 101, the inner wall of the inner layer 101 is tightly fitted with the inner lining layer 102, the outer wall of the inner layer 101 is tightly fitted with the reinforcing layer 103, and the outer wall of the reinforcing layer 103 is tightly fitted with the outer layer 104. The double-layer delivery pipe 1 can improve the safety of the delivery pipe 1 when in use. The fixing strip 201 is fixedly connected to the center of the upper end of the outer wall of the delivery pipe 1. Both ends of the data line 202 are fixedly connected with a data connector 203. The outer wall of the data connector 203 is snap-fitted with a screw cap 204. The outer walls of the gas sensor 209 and the pressure sensor 2012 are fixedly connected with a first data interface 2013, so that the gas sensor 209 and the pressure sensor 2012 are fixedly connected. The gas sensor 209 and the pressure sensor 2012 can be transmitted to the central processing equipment through the splicing mechanism 3. The chamber 205 is opened inside the delivery pipe 1. The upper end of the inner wall of the first mounting cylinder 207 is provided with a first thread groove 208, and the upper end of the inner wall of the second mounting cylinder 2010 is provided with a second thread groove 2011. The second mounting cylinder 2010 passes through the delivery pipe 1 and is fixedly connected to the chamber 205. The lower surface of the rotating block 2016 is fixedly connected with a threaded block 2017, so that the gas sensor 209 and the pressure sensor 2012 can be threadedly installed on the delivery pipe 1, and the gas sensor 209 can detect the gas in the chamber 205.

[0022] like Figure 3 、4 As shown in Figure 5, the limiting clamping ring 301 is fixedly connected to the outer wall of the front end and the rear end of the conveying pipe 1 respectively, and the middle part of the outer wall of the limiting clamping ring 301 is fixedly connected with a sealing clamping block 302, and the inner wall of the limiting clamping groove 309 is provided with a sealing clamping groove 3010. The sealing clamping groove 3010 and the sealing clamping block 302 are mutually engaged to seal the conveying pipe 1 and the splicing pipe 303. The splicing pipe 303 is engaged with the front end of the outer wall of the conveying pipe 1, and the splicing ring 3020 is engaged with the rear end of the outer wall of the conveying pipe 1. The front end of the outer wall of the threaded rod 304 is threaded with a locking nut 305, and both sides of the upper surface of the lower reinforcement ring 306 are threaded with connecting screws 307, so that the user can connect the lower reinforcement ring 306 through the connecting screws 307. It is clamped and installed on the splicing tube 303 with the upper reinforcement ring 308, and the splicing tube 303 is fixed between the two conveying pipes 1 by the locking nut 305. A sealing block 3011 is fixedly connected to the center of the inner wall of the splicing tube 303, and the gear 3014 is engaged with the worm 3018, so that the servo motor 3017 can rotate the valve ball 3013, and then the splicing tube 303 is closed by the sealing block 3011. The outer walls of the front and rear ends of the control seat 3015 are fixedly connected to the second data interface 3016, and the center of the upper end of the outer wall of the splicing ring 3020 is fixedly connected to the data connection block 3021. By setting the second data interface 3016 and the data connection block 3021, data transmission and connection can be carried out between the splicing mechanisms 3.

[0023] Working principle: First, the splicing tube 303 is installed and spliced ​​together with the delivery tube 1 through the upper and lower reinforcement rings 306, and the appropriate number of delivery tubes 1 are spliced ​​together through the splicing ring 3020, the upper reinforcement ring 308 and the lower reinforcement ring 306, so as to adjust the number of delivery tubes 1 between the two splicing tubes 303. The multiple splicing tubes 303, the pressure sensor 2012 and the gas sensor 209 are connected to the data through the data line 202, the data connector 203, the data interface and the data connection block 3021. When one of the delivery tubes 1 is damaged, the pressure value detected by the pressure sensor 2012 installed therein is greatly increased. Fluctuations occur, and when only the inner layer 101 of the delivery pipe 1 is damaged, hydrogen enters the chamber 205 and is detected by the gas sensor 209. The abnormal data detected by the pressure sensor 2012 and the gas sensor 209 will cause the components set in the electronic component module 3019 to start the preset program (the servo motor 3017 rotates the valve ball 3013 through the engagement of the worm 3018 and the gear 3014 to close and seal the splicing tubes 303 at both ends of the damaged delivery pipe 1), isolate the damaged delivery pipe 1, and at the same time, the abnormal data will be transmitted to the connected central control device so that the user can maintain and replace the damaged delivery pipe 1 according to the detection results.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen transport composite pipeline leakage monitoring device, comprising a transport pipe (1), characterized in that: A detection mechanism (2) is provided in the middle of the outer wall of the delivery pipe (1), and the detection mechanism (2) comprises a fixing bar (201) and a chamber (205). The front end and the rear end of the fixing bar (201) are both fixedly connected to the inside of the data line (202), the inside of the chamber (205) is fixedly connected to a plurality of support blocks (206), the rear end of the middle portion of the upper surface of the fixing bar (201) is fixedly connected to a first mounting tube (207), and the upper end of the inside of the first mounting tube (207) is provided with a gas sensor (209). A second mounting tube (2010) is fixedly connected to the front end of the middle portion of the upper surface of the fixing bar (201), a pressure sensor (2012) is provided at the upper end inside the second mounting tube (2010), a detection tube (2014) is fixedly connected to the center of the lower surface of each of the gas sensor (209) and the pressure sensor (2012), a plurality of sealing rings (2015) are fixedly connected to the lower end of the outer wall of the detection tube (2014), and a rotating block (2016) is rotatably connected to the upper end of the outer wall of the detection tube (2014); The front and rear ends of the delivery pipe (1) are provided with a splicing mechanism (3), the splicing mechanism (3) comprising a limiting clamping ring (301), a splicing pipe (303) and a splicing ring (3020), the outer walls of the front and rear ends of the splicing pipe (303) are fixedly connected with threaded rods (304) all around, the lower parts of the outer walls of the front and rear ends of the splicing pipe (303) are snap-fitted with a lower reinforcement ring (306), the upper parts of the outer walls of the front and rear ends of the splicing pipe (303) are snap-fitted with an upper reinforcement ring (308), the inner walls of the front and rear ends of the splicing pipe (303) are provided with limiting clamping grooves (309), and the splicing pipe (303) The upper end of the middle portion of the inner wall is rotatably connected to a rotating rod (3012), the lower end of the outer wall of the rotating rod (3012) is fixedly connected to a valve ball (3013), the center of the upper surface of the rotating rod (3012) is fixedly connected to a gear (3014), the middle portion of the upper end of the outer wall of the splicing tube (303) is fixedly connected to a control seat (3015), one side of the inner rear end of the control seat (3015) is fixedly connected to a servo motor (3017), the output end of the servo motor (3017) is fixedly connected to a worm (3018), and the other side of the inner rear end of the control seat (3015) is fixedly connected to an electronic component module (3019).

2. The hydrogen transport composite pipeline leakage monitoring device according to claim 1, characterized in that: The delivery pipe (1) comprises an inner layer (101), the inner wall of the inner layer (101) is tightly fitted with an inner lining layer (102), the outer wall of the inner layer (101) is tightly fitted with a reinforcing layer (103), and the outer wall of the reinforcing layer (103) is tightly fitted with an outer layer (104).

3. The hydrogen transport composite pipeline leakage monitoring device according to claim 1, characterized in that: The fixing bar (201) is fixedly connected to the center of the upper end of the outer wall of the delivery pipe (1); both ends of the data line (202) are fixedly connected to data connectors (203); the outer wall of the data connector (203) is snap-fitted with a screw cap (204); and the outer walls of the gas sensor (209) and the pressure sensor (2012) are fixedly connected to a first data interface (2013).

4. The hydrogen transport composite pipeline leakage monitoring device according to claim 1, characterized in that: The chamber (205) is opened inside the delivery pipe (1), a first thread groove (208) is opened at the upper end of the inner wall of the first installation cylinder (207), a second thread groove (2011) is opened at the upper end of the inner wall of the second installation cylinder (2010), the second installation cylinder (2010) passes through the delivery pipe (1) and is fixedly connected to the chamber (205), and a thread block (2017) is fixedly connected to the lower surface of the rotating block (2016).

5. The hydrogen transport composite pipeline leakage monitoring device according to claim 1, characterized in that: The limiting clamp ring (301) is fixedly connected to the outer walls of the front end and the rear end of the delivery pipe (1), respectively; a sealing clamp block (302) is fixedly connected to the middle of the outer wall of the limiting clamp ring (301); and a sealing clamp groove (3010) is provided on the inner wall of the limiting clamp groove (309).

6. The hydrogen transport composite pipeline leakage monitoring device according to claim 1, characterized in that: The splicing tube (303) is snap-fitted to the front end of the outer wall of the delivery tube (1), the splicing ring (3020) is snap-fitted to the rear end of the outer wall of the delivery tube (1), the front end of the outer wall of the threaded rod (304) is threadedly fitted with a locking nut (305), and both sides of the upper surface of the lower reinforcement ring (306) are threadedly fitted with connecting screws (307).

7. The hydrogen transport composite pipeline leakage monitoring device according to claim 1, characterized in that: A sealing block (3011) is fixedly connected to the center of the inner wall of the splicing tube (303), and the gear (3014) is meshed with the worm (3018).

8. The hydrogen transport composite pipeline leakage monitoring device according to claim 1, characterized in that: The outer walls of the front and rear ends of the control seat (3015) are both fixedly connected to a second data interface (3016), and the center of the upper end of the outer wall of the splicing ring (3020) is fixedly connected to a data connection block (3021).

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