CN111174102A - Active safety feedback emergency stop system for hydrogen pipeline - Google Patents
Active safety feedback emergency stop system for hydrogen pipeline Download PDFInfo
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- CN111174102A CN111174102A CN201911399770.7A CN201911399770A CN111174102A CN 111174102 A CN111174102 A CN 111174102A CN 201911399770 A CN201911399770 A CN 201911399770A CN 111174102 A CN111174102 A CN 111174102A
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- hydrogen
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- emergency stop
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
- Pipeline Systems (AREA)
Abstract
The application relates to an active safety feedback emergency stop system for a hydrogen pipeline, which comprises a shell, a detector, a driver, a relay and an electric valve. The shell is internally provided with a cavity, the hydrogen transportation pipeline is arranged in the cavity, and the shell is detachably connected with the hydrogen transportation pipeline. When the detector detects that hydrogen leaks from the joint of the hydrogen transportation pipeline, the driver is switched off, so that the relay is switched off. The electric valve is arranged on the hydrogen transportation pipeline and is electrically connected with the relay. When the relay is disconnected, the electric valve is closed to stop conveying hydrogen to the hydrogen transportation pipeline. According to the system, through the detection of the hydrogen leakage of the pipeline joint, the hydrogen conveying can be stopped in time when the micro leakage is found at any detection position on the pipeline, and the expansion of the leakage accident is avoided. Moreover, when any detection position leaks, the system can create an environment capable of restricting the leaked hydrogen at the position where the leakage is easy to occur through the shell, so that the hydrogen is prevented from escaping, and the detection precision of the detector is improved.
Description
Technical Field
The application relates to the field of hydrogen delivery, in particular to an active safety feedback emergency stop system for a hydrogen pipeline.
Background
Energy exhaustion and environmental pollution caused by fossil energy consumption are becoming serious, and large-scale development and utilization of renewable energy are imperative. Although renewable energy resources are abundant and widely distributed, the renewable energy resources fluctuate violently and are periodically influenced by natural environments. Hydrogen is an effective energy storage mode, electric energy is converted into chemical energy to be stored in the hydrogen in the peak period of renewable energy power generation, and the energy carried by the hydrogen is converted into the electric energy again through a fuel cell for use in the peak period of power utilization. Therefore, the technologies of hydrogen preparation, storage, transportation and the like are regarded by relevant researchers.
However, hydrogen is a very flammable and explosive gas, and when the volume fraction of hydrogen in air exceeds 4% -75%, explosion can be caused when the hydrogen meets a fire source. Therefore, hydrogen leakage and active protection after leakage during transportation and storage of hydrogen are very important.
Disclosure of Invention
Based on this, this application provides a hydrogen pipeline initiative safety feedback scram system to avoid leaking the accident and enlarge.
An active safety feedback emergency stop system for a hydrogen pipeline, comprising:
the hydrogen transportation device comprises a shell, a hydrogen transportation pipeline and a hydrogen storage tank, wherein the shell is internally provided with a cavity, a transportation pipeline joint of the hydrogen transportation pipeline is arranged in the cavity, and the shell is detachably connected with the hydrogen transportation pipeline;
the detector is arranged at the joint of the hydrogen transportation pipeline and used for detecting whether hydrogen leaks from the joint of the hydrogen transportation pipeline;
the driver is electrically connected with the detector, and sends a first control signal when the detector detects that hydrogen leaks from the joint of the hydrogen transportation pipeline;
the relay is electrically connected with the driver, and when the driver is switched off, the relay is switched off; and
and the electric valve is arranged on the hydrogen transportation pipeline and is electrically connected with the relay, and when the relay is disconnected, the electric valve is turned off to stop the hydrogen transportation pipeline from conveying hydrogen.
In one embodiment, the method further comprises the following steps:
a first flexible seal disposed between the housing and the hydrogen transport conduit to form an insulating sealed environment within the cavity.
In one embodiment, the method further comprises the following steps:
the hydrogen adsorbs the piece, set up in the cavity is used for adsorbing hydrogen in the cavity.
In one embodiment, the hydrogen adsorbing member is disposed on an inner sidewall of the housing adjacent to the first flexible sealing member.
In one embodiment, the relay is a normally open relay and the electrically operated valve is a normally closed electrically operated valve.
In one embodiment, the method further comprises the following steps:
and the alarm is electrically connected with the relay, and when the relay is disconnected, the alarm gives an alarm.
In one embodiment, the alarm is a warning light or a buzzer.
In one embodiment, the housing has an opening extending through the housing in the direction of extension of the hydrogen transport conduit, the opening being adapted to locate the hydrogen transport conduit in the cavity.
In one embodiment, the method further comprises the following steps:
the buckle is fixedly arranged on the outer side wall of the shell; and
the snap ring, one end is fixed set up in the lateral wall of casing, and the snap ring with the buckle interval set up in the both ends of opening, work as the other end block of snap ring in during the buckle, will through pressing the snap ring the opening is closed.
In one embodiment, the method further comprises the following steps:
a second flexible seal disposed at the opening of the housing.
An active safety feedback emergency stop system for a hydrogen pipeline, comprising:
the hydrogen transportation device comprises a shell, a hydrogen transportation pipeline and a hydrogen storage tank, wherein the shell is internally provided with a cavity, a transportation pipeline joint of the hydrogen transportation pipeline is arranged in the cavity, and the shell is detachably connected with the hydrogen transportation pipeline;
the detection control devices are arranged at one joint of the hydrogen transportation pipeline; and
the electric valve is arranged on the hydrogen transportation pipeline and is electrically connected with each detection control device;
each of the detection control means includes:
the detector is arranged at a conveying pipeline joint of the hydrogen conveying pipeline and used for detecting whether hydrogen leaks from the conveying pipeline joint of the hydrogen conveying pipeline;
the driver is electrically connected with the detector, and sends a first control signal when the detector detects that hydrogen leaks from the joint of the hydrogen transportation pipeline; and
and the relay is electrically connected with the driver, and when the driver is switched off, the relay is switched off.
The active safety feedback emergency stop system of the hydrogen pipeline comprises a shell, a detector, a driver, a relay and an electric valve. The shell is internally provided with a cavity, a hydrogen transportation pipeline is arranged in the cavity, and the shell is detachably connected with the hydrogen transportation pipeline. The detector is arranged at the joint of the hydrogen transportation pipeline and used for detecting whether hydrogen is leaked at the joint of the hydrogen transportation pipeline. The driver is electrically connected to the detector. When the detector detects that hydrogen leaks from the joint of the hydrogen transportation pipeline, the driver sends a first control signal. The relay is electrically connected with the driver and used for receiving the first control signal. And when the relay receives the first control signal, the relay is disconnected. The electric valve is arranged on the hydrogen transportation pipeline and is electrically connected with the relay. And when the relay is disconnected, the electric valve is turned off to stop conveying hydrogen to the hydrogen transportation pipeline. According to the hydrogen pipeline active safety feedback emergency stop system, through detection of hydrogen leakage of the pipeline joint, hydrogen conveying can be stopped in time when micro leakage is found at any detection position on the pipeline, and the expansion of leakage accidents is avoided. Moreover, when leakage occurs at any detection position, the hydrogen pipeline active safety feedback emergency stop system can create an environment capable of restricting the leaked hydrogen at the position where leakage easily occurs through the shell, so that the hydrogen is prevented from escaping, and the detection precision of the detector is improved.
Drawings
FIG. 1 is a block diagram of an active safety feedback emergency stop system for a hydrogen pipeline according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of an active safety feedback emergency stop system for a hydrogen pipeline according to an embodiment of the present disclosure;
FIG. 3 is a block diagram of an active safety feedback emergency stop system for a hydrogen pipeline according to an embodiment of the present application;
FIG. 4 is a block diagram of an active safety feedback emergency stop system for a hydrogen pipeline according to an embodiment of the present application;
FIG. 5 is a block diagram of an active safety feedback emergency stop system for a hydrogen pipeline according to an embodiment of the present application;
fig. 6 is a block diagram of an active safety feedback emergency stop system of a hydrogen pipeline according to an embodiment of the present application.
Description of the main element reference numerals
Active safety feedback emergency stop system 10 for hydrogen pipeline
Fastener 110
First clamping body 130
First flexible seal 200
Second flexible seal 400
Pipe joint nut 30
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present application provides an active safety feedback emergency stop system 10 for a hydrogen pipeline. The hydrogen pipeline active safety feedback emergency stop system 10 comprises a housing 100, a detector 310, an actuator 320, a relay 330 and an electric valve 600.
The housing 100 has a cavity 101 therein. A transport pipe joint of the hydrogen transport pipe 20 is disposed in the cavity 101, and the housing 100 is detachably coupled to the hydrogen transport pipe 20. The detector 310 is disposed at a transportation pipe joint of the hydrogen transportation pipe 20, and is configured to detect whether hydrogen is leaked at the transportation pipe joint of the hydrogen transportation pipe 20. The driver 320 is electrically connected to the detector 310. When the detector 310 detects a hydrogen leak at the transport pipe joint of the hydrogen transport pipe 20, the driver 320 is turned off. The relay 330 is electrically connected to the driver 320, and when the driver 320 is turned off, the relay 330 is turned off. The electric valve 600 is disposed in the hydrogen transportation pipe 20. The electric valve 600 is electrically connected to the relay 330, and when the relay 330 is disconnected, the electric valve 600 is turned off to stop the hydrogen gas delivery to the hydrogen transportation pipe 20.
Specifically, referring to fig. 1, the transport pipe joints of the hydrogen transport pipes 20 are connected by pipe joint nuts 30. Of course, the transportation pipe joints of the hydrogen transportation pipes 20 may be connected by other connection methods. The electric valve 600 is disposed upstream of the hydrogen transportation pipe 20. Of course, since the hydrogen transportation pipe 20 may be transported a long distance, the electric valve 600 may be provided on the hydrogen transportation pipe 20 at a certain interval. When the valve of the electric valve 600 is opened, the hydrogen transportation pipe 20 can normally transport hydrogen. When the valve of the electric valve 600 is closed, the hydrogen transportation pipe 20 may stop the transportation of hydrogen.
The detector 310 may be provided on a transport pipe joint of the hydrogen transport pipe 20. The detector 310 is any one of a hydrogen concentration detector, a gas pressure value detector, or a gas pressure change detector. The driver 320 may be composed of a resistor and a mosfet in series. The output terminal of the detector 310 is electrically connected to one terminal of the resistor. The other end of the resistor is connected with the grid electrode of the metal oxide semiconductor field effect transistor. The drain of the mosfet is electrically connected to one end of the relay 330. And the source electrode of the metal oxide semiconductor field effect transistor is grounded. The other end of the relay 330 is connected with the power supply of the electric valve. When the detector 310 detects hydrogen, the detector 310 sends a high level to the mosfet, and when the mosfet receives the high level, the mosfet is disconnected, so that the relay 330 is disconnected, and the electric valve 600 loses power supply to turn off the valve, and the hydrogen transportation pipeline 20 may stop delivering hydrogen, thereby avoiding expansion of leakage accidents. In an alternative embodiment, the relay 330 is a normally open relay and the electrically operated valve 600 is a normally closed electrically operated valve. When a hydrogen gas micro-leakage occurs at a certain pipe joint, or when any one of the elements of the detector 310, the driver 320 and the relay 330 fails, the relay 330 is normally open, and the power supply of the electric valve 600 is also cut off, so that the electric valve 600 loses power supply to shut off the valve, and the hydrogen gas transportation pipe 20 can stop delivering hydrogen gas.
With continued reference to fig. 2, the shape and size of the housing 100 are not particularly limited as long as the portion of the hydrogen transport pipe 20 susceptible to leakage is ensured inside the housing 100. The shape and size of the housing 100 may be set according to the pipe diameter of the hydrogen transport pipe 20. The housing 100 ensures that the transport pipe connections of the hydrogen transport pipe 20 are all within the cavity 101 of the housing 100, i.e. the detector 310 is also within the cavity 101 of the housing 100. The upper and lower bottom surfaces of the housing 100 have through-holes to facilitate the passage of the hydrogen transport pipe 20.
The housing 100 and the hydrogen transportation pipeline 20 may be detachably connected by providing an opening in the housing 100, and when the hydrogen transportation pipeline is properly installed, the housing 100 is sleeved on a part of the hydrogen transportation pipeline, where leakage is likely to occur, through the opening in the housing 100. The housing 100 may be detachably connected to the hydrogen transportation pipe 20 by providing the housing 100 as two half shells that are butted together. The two half shells can be detachably connected with each other through bolts, clamping or other detachable modes. The detachable connection of the housing 100 and the hydrogen transportation pipeline 20 may also be achieved by configuring the housing 100 to be elastically contractible, and before the hydrogen transportation pipeline is installed, the housing 100 is directly sleeved on a part of the hydrogen transportation pipeline, where leakage is likely to occur, and then the hydrogen transportation pipeline 20 is installed.
Casing 100 makes the environment that can retrain leaking hydrogen in the easy place that leaks that takes place, when hydrogen transport pipeline 20's pipe joint takes place hydrogen and leaks, because casing 100 inner space is less, and hydrogen concentration can promote very fast, and gas pressure also can promote very fast, detector 310 can the quick response, and then in time turn-offs hydrogen delivery valve to pipeline to taking place to leak overhauls. Moreover, the hydrogen leaked in the cavity 101 can be treated by ignition, adsorption, reaction, collection and other means, so as to prevent the hydrogen from being leaked to the external environment. In addition, when the electric valve 600 is turned off, the upstream hydrogen is prevented from being delivered to the downstream pipeline, but the hydrogen already delivered to the leaking pipeline section still continues to leak through the leaking part, and the casing 100 can collect the leaked hydrogen in the cavity 101 to prevent the hydrogen from escaping around, thereby causing a safety accident. The hydrogen gas leaked in the cavity 101 can be treated by ignition, adsorption, reaction, collection and other means, so as to prevent the hydrogen gas from escaping into the external environment.
In this embodiment, the active safety feedback emergency stop system 10 for a hydrogen pipeline can stop hydrogen transportation in time when a slight leakage is found at any detection position on the pipeline by detecting the hydrogen leakage of the pipeline joint, so as to avoid expansion of leakage accidents. Moreover, when a leak occurs at any detection location, the hydrogen pipeline active safety feedback emergency stop system 10 can create an environment capable of restricting the leaked hydrogen through the housing 100 at the location where the leak easily occurs, so as to prevent the hydrogen from escaping, thereby improving the detection accuracy of the detector 310.
In one embodiment, the hydrogen circuit active safety feedback emergency stop system 10 further comprises a first flexible seal 200. The first flexible seal 200 is disposed between the housing 100 and the hydrogen transport pipe 20 to form an insulating sealed environment within the cavity 101.
Specifically, the first flexible sealing element 200 may be any one of rubber, resin, plastic material, silicone material, or other flexible sealing material. The first flexible sealing members 200 are disposed at portions where the upper and lower bottom surfaces of the housing 100 are closely attached to the hydrogen transport pipe 20. Of course, the first flexible seal member 200 may be provided at a detachable portion of the housing 100. The first flexible sealing member 200 may be fixedly disposed in the cavity 101 by bonding. The first flexible sealing element 200 may also be provided with a clamping member at a corresponding position of the housing 100, and the clamping member fixes the first flexible sealing element 200 to the cavity 101. When the sealing mechanism 300 is not in operation, the first flexible sealing element 200 is configured to provide a certain sealing property to the hydrogen pipeline active safety device 10, so as to prevent hydrogen from escaping around when hydrogen leaks.
In one embodiment, the hydrogen pipeline active safety feedback emergency stop system 10 further comprises a hydrogen adsorbing member 500. The hydrogen adsorbing member 500 is disposed in the cavity 101, and is configured to adsorb hydrogen in the cavity 101.
Specifically, the hydrogen adsorbing member 500 may be disposed on a sidewall of the entire inner space of the housing 100. The hydrogen adsorbing member 500 may be provided only at a designated position of the housing 100. In an alternative embodiment, the hydrogen adsorbing member 500 is disposed at an inner sidewall of the housing 100 near the first flexible sealing member 200. The hydrogen absorbing member 500 is made of any one or more of ferrotitanium, ferrotitanium-carbon alloy, calcium-manganese-nickel-aluminum alloy, rare earth lanthanum-nickel, complex, carbonaceous material or other hydrogen absorbing material. When hydrogen leakage occurs at the joint of the hydrogen transportation pipeline 20, the hydrogen leaked in the cavity 101 can be adsorbed by the hydrogen adsorbing member 500, so that the hydrogen is prevented from being dissipated to the external environment.
Referring also to fig. 3, in one embodiment, the hydrogen pipeline active safety feedback emergency stop system 10 further includes an alarm 340. The alarm 340 is electrically connected with the relay 330, and when the relay 330 is disconnected, the alarm 340 gives an alarm.
Specifically, in an alternative embodiment, the alarm 340 is one or more of a warning light or a buzzer. The alarm 340 may be disposed on an inner wall of the housing 100. The alarm 340 may also be disposed on an outer wall of the housing 100. Referring to fig. 5, in an alternative embodiment, the alarm 340 may include a power source, a switch element and a warning light electrically connected in sequence. When the electric valve 600 is powered normally, the potentials at the two ends of the warning lamp are equal, and the warning lamp is turned off. When the power supply of the electric valve 600 is cut off by the relay 330, the warning lamp has a forward voltage drop, and the warning lamp lights for warning to perform safety treatment and maintenance. The alarm 340 can respond quickly to inform the staff to perform maintenance, and prevent a large amount of leaked hydrogen from gathering.
Referring to fig. 4, in one embodiment, the housing 100 has an opening 102 extending through the housing 100 along the extending direction of the hydrogen transport pipe 20, and the opening 102 is used for placing the hydrogen transport pipe 20 in the cavity 101. In one alternative embodiment, to achieve a seal between the housing 100 and the hydrogen transport conduit 20, the hydrogen pipeline active safety device 10 further comprises a snap 110, a snap ring 120, and a second flexible seal 400.
The buckle 110 is fixedly disposed on an outer sidewall of the housing 100. One end of the snap ring 120 is fixedly disposed on the outer sidewall of the housing 100, the snap ring 120 and the buckle 110 are disposed at two ends of the opening 102 at an interval, and when the other end of the snap ring 120 is buckled to the buckle 110, the opening 102 is closed by pressing the snap ring 120. The second flexible seal 400 is disposed at the opening 102 of the housing 100. The buckle 110 and the snap ring 120 cooperate to fix the hydrogen pipeline active safety device 10 to a pipeline, and press the opening 102 of the housing 100 to close the opening, thereby achieving a sealing effect. The release can also be quick when the device needs to be repaired or replaced.
In an alternative embodiment, the first flexible seal 200 and the second flexible seal 400 may be two separately disposed seals. In one alternative embodiment, the first flexible seal 200 is integrally formed with the second flexible seal 400. The material of the first flexible sealing member 200 and the material of the second flexible sealing member 400 are any one of a rubber material, a resin material, a plastic material, a silicone material, or other flexible sealing materials.
In an alternative embodiment, the hydrogen pipeline active safety device 10 can also achieve sealing between the housing 100 and the hydrogen transport pipeline 20 through two extension plates and a snap and a clamping groove. Two extension plates may be disposed on both sides of the opening 102. Two extension plates may be integrally formed with the housing 100. The fastener is arranged on one extending plate, the clamping groove is arranged on the other extending plate, and the fastener and the clamping groove are clamped to close the opening in the shell 100.
In this embodiment, the housing 100 has an opening 102 extending through the housing 100 along the extension direction of the hydrogen transport pipe 20, so that the housing 100 can be detachably mounted without disassembling the hydrogen transport pipe 20.
Referring to fig. 5, in one embodiment, the housing 100 includes a first clamping body 130 and a second clamping body 140.
The first clamping body 130 has a first screw hole 131. The second clamping body 140 has a second screw hole 141. The first flexible sealing member 200 is disposed between the first clamping body 130 and the second clamping body 140. A connector detachably connects the first clamping body 130 and the second clamping body 140 through the second screw hole 141 and the first screw hole 131 to form the cavity between the first clamping body 130 and the second clamping body 140.
Specifically, the first clamping body 130 and the second clamping body 140 may be half shells having the same shape, and when the first clamping body 130 and the second clamping body 140 are butted, the housing 100 is formed. Screw holes are formed at corresponding positions of the first clamping body 130 and the second clamping body 140, so that the two half shells can be detachably connected. The first flexible sealing member 200 may be positioned at both ends of the first clamping body 130 and both ends of the second clamping body 140. Of course, a second flexible sealing member 400 may be provided at a position where the first clamping body 130 and the second clamping body 140 are butted. At this time, a third screw hole 401 is formed at a corresponding position of the second flexible sealing member 400, so that a screw 150 passes through the first screw hole 131, the third screw hole 401 and the second screw hole 141 in sequence to detachably connect the first clamping body 130 and the second clamping body 140. Optionally, the first flexible seal 200 is integrally formed with the second flexible seal 400.
In this embodiment, the housing 100 may be detachably mounted to the housing 100 through the first clamping member 130 and the second clamping member 140 without disassembling the hydrogen transportation pipe 20.
Referring to fig. 6, the present application provides an active safety feedback emergency stop system 10 for a hydrogen pipeline. The hydrogen pipeline active safety feedback emergency stop system 10 comprises a housing 100, a plurality of detection control devices 300 and an electric valve 600. Each of the detection control devices 300 includes a detector 310, a driver 320, and a relay 330.
The housing 100 has a cavity 101 therein, a transportation pipe joint of the hydrogen transportation pipe 20 is disposed in the cavity 101, and the housing 100 is detachably connected to the hydrogen transportation pipe 20. Each of the detection control devices 300 is disposed at one joint of the hydrogen transportation pipe 20. The electric valve 600 is disposed in the hydrogen transportation pipe 20 and electrically connected to each of the detection control devices 300.
The detector 310 is disposed at a transportation pipe joint of the hydrogen transportation pipe 20, and is configured to detect whether hydrogen is leaked at the transportation pipe joint of the hydrogen transportation pipe 20. The driver 320 is electrically connected to the detector 310, and when the detector 310 detects a hydrogen gas leak at the delivery pipe joint of the hydrogen delivery pipe 20, the driver 320 is turned off. The relay 330 is electrically connected to the driver 320, and when the driver 320 is turned off, the relay 330 is turned off.
Specifically, when the hydrogen transportation pipe 20 has a plurality of pipe joints, a detection control device 300 may be provided at each pipe joint. As long as one of the detection control devices 300 detects that hydrogen gas leaks, the electric valve 600 can be powered off to turn off the valve, and the hydrogen transportation pipeline 20 can stop delivering hydrogen gas, so that the leakage accident is prevented from being enlarged. All of the pipe connections may be placed in the cavity 101 of one housing 100. Of course, there is no single housing 100 at each pipe joint. The housing 100, the detector 310, the driver 320, the relay 330 and the electric valve 600 are the same as the housing 100, the detector 310, the driver 320, the relay 330 and the electric valve 600 in the above embodiments, and the description thereof is omitted.
In this embodiment, the active safety feedback emergency stop system 10 for a hydrogen pipeline can stop hydrogen transportation in time when a slight leakage is found at any detection position on the pipeline by detecting the hydrogen leakage of the pipeline joint, so as to avoid expansion of leakage accidents. Moreover, when a leak occurs at any detection location, the hydrogen pipeline active safety feedback emergency stop system 10 can create an environment capable of restricting the leaked hydrogen through the housing 100 at the location where the leak easily occurs, so as to prevent the hydrogen from escaping, thereby improving the detection accuracy of the detector 310.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. An active safety feedback emergency stop system for a hydrogen pipeline, comprising:
the hydrogen transportation pipeline comprises a shell (100), wherein a cavity (101) is formed in the shell, a transportation pipeline joint of a hydrogen transportation pipeline (20) is arranged in the cavity (101), and the shell (100) is detachably connected with the hydrogen transportation pipeline (20);
the detector (310) is arranged at the conveying pipeline joint of the hydrogen conveying pipeline (20) and used for detecting whether hydrogen leaks from the conveying pipeline joint of the hydrogen conveying pipeline (20);
a driver (320) electrically connected to the detector (310), the driver (320) being turned off when the detector (310) detects a hydrogen leak at a transport pipe joint of the hydrogen transport pipe (20);
a relay (330) electrically connected to the driver (320), the relay (330) being opened when the driver (320) is turned off; and
and the electric valve (600) is arranged on the hydrogen transportation pipeline (20) and is electrically connected with the relay (330), and when the relay (330) is disconnected, the electric valve (600) is turned off to stop the hydrogen transportation pipeline (20) from being conveyed.
2. The hydrogen pipeline active safety feedback emergency stop system of claim 1, further comprising:
a first flexible seal (200) disposed between the housing (100) and the hydrogen transport conduit (20) to form an insulating sealed environment within the cavity (101).
3. The hydrogen pipeline active safety feedback emergency stop system of claim 2, further comprising:
the hydrogen adsorption piece (500) is arranged in the cavity (101) and is used for adsorbing hydrogen in the cavity (101).
4. The active safety feedback emergency stop system of hydrogen pipeline according to claim 3, wherein the hydrogen adsorbing member (500) is disposed on the inner side wall of the housing (100) near the first flexible seal member (200).
5. The hydrogen pipeline active safety feedback emergency stop system according to claim 1, wherein the relay (330) is a normally open relay and the electrically operated valve (600) is a normally closed electrically operated valve.
6. The hydrogen pipeline active safety feedback emergency stop system of claim 5, further comprising:
and the alarm (340) is electrically connected with the relay (330), and when the relay (330) is disconnected, the alarm (340) gives an alarm.
7. The active safety feedback emergency stop system of hydrogen pipeline according to claim 6, wherein the alarm (340) is a warning light or a buzzer.
8. The active safety feedback emergency stop system for hydrogen pipelines according to claim 1, wherein the housing (100) has an opening (102) extending through the housing (100) along the extension direction of the hydrogen transportation pipeline (20), and the opening (102) is used for placing the hydrogen transportation pipeline (20) in the cavity (101).
9. The hydrogen pipeline active safety feedback emergency stop system of claim 8, further comprising:
the buckle (110) is fixedly arranged on the outer side wall of the shell (100); and
and one end of the clamping ring (120) is fixedly arranged on the outer side wall of the shell (100), the clamping ring (120) and the buckle (110) are arranged at two ends of the opening (102) at intervals, and when the other end of the clamping ring (120) is clamped on the buckle (110), the opening (102) is closed by pressing the clamping ring (120).
10. The hydrogen pipeline active safety feedback emergency stop system of claim 9, further comprising:
a second flexible seal (400) disposed at the opening (102) of the housing (100).
11. An active safety feedback emergency stop system for a hydrogen pipeline, comprising:
the hydrogen transportation pipeline comprises a shell (100), wherein a cavity (101) is formed in the shell, a transportation pipeline joint of a hydrogen transportation pipeline (20) is arranged in the cavity (101), and the shell (100) is detachably connected with the hydrogen transportation pipeline (20);
a plurality of detection control devices (300), wherein each detection control device (300) is arranged at one joint of the hydrogen transportation pipeline (20); and
an electric valve (600) disposed in the hydrogen transportation pipeline (20) and electrically connected to each of the detection control devices (300);
each of the detection control devices (300) includes:
the detector (310) is arranged at the joint of the hydrogen transportation pipeline (20) and used for detecting whether hydrogen leaks from the joint of the hydrogen transportation pipeline (20);
a driver (320) electrically connected to the detector (310), the driver (320) being turned off when the detector (310) detects a hydrogen leak at a transport pipe joint of the hydrogen transport pipe (20); and
and the relay (330) is electrically connected with the driver (320), and when the driver (320) is turned off, the relay (330) is turned off.
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| CN201911399770.7A CN111174102A (en) | 2019-12-30 | 2019-12-30 | Active safety feedback emergency stop system for hydrogen pipeline |
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| CN201911399770.7A CN111174102A (en) | 2019-12-30 | 2019-12-30 | Active safety feedback emergency stop system for hydrogen pipeline |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895276A (en) * | 2020-07-15 | 2020-11-06 | 广东珠江燃气集团股份有限公司 | Gas supply pipeline internal air pressure monitoring device |
| CN114811449A (en) * | 2022-04-15 | 2022-07-29 | 国网浙江省电力有限公司宁波供电公司 | Hydrogen energy automobile safety detection device |
| CN116345703A (en) * | 2023-03-08 | 2023-06-27 | 三峡新能源盐城大丰有限公司 | Comprehensive energy system for producing hydrogen based on offshore wind power |
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| CN111895276A (en) * | 2020-07-15 | 2020-11-06 | 广东珠江燃气集团股份有限公司 | Gas supply pipeline internal air pressure monitoring device |
| CN114811449A (en) * | 2022-04-15 | 2022-07-29 | 国网浙江省电力有限公司宁波供电公司 | Hydrogen energy automobile safety detection device |
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| CN116345703A (en) * | 2023-03-08 | 2023-06-27 | 三峡新能源盐城大丰有限公司 | Comprehensive energy system for producing hydrogen based on offshore wind power |
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