CN114962988B - Hydrogen filling equipment capable of detecting hydrogen leakage - Google Patents
Hydrogen filling equipment capable of detecting hydrogen leakage Download PDFInfo
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- CN114962988B CN114962988B CN202210633737.1A CN202210633737A CN114962988B CN 114962988 B CN114962988 B CN 114962988B CN 202210633737 A CN202210633737 A CN 202210633737A CN 114962988 B CN114962988 B CN 114962988B
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- Prior art keywords
- hydrogen
- conveying pipeline
- air
- filling
- leakage
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 239000001257 hydrogen Substances 0.000 title claims abstract description 141
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 141
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 59
- 239000010410 layer Substances 0.000 claims description 49
- 239000002390 adhesive tape Substances 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 14
- 239000011229 interlayer Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 14
- 239000012790 adhesive layer Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000009965 odorless effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/038—Detecting leaked fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0134—Applications for fluid transport or storage placed above the ground
- F17C2270/0139—Fuel stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the technical field of hydrogen filling, in particular to hydrogen filling equipment capable of detecting hydrogen leakage; comprising the following steps: the gas filling pile is used for filling hydrogen; the conveying pipeline is connected with the air-entrapping pile; an air gun is arranged on the other side of the conveying pipeline; the hydrogen flowing out of the air filling pile is filled into a hydrogen energy automobile through a conveying pipeline and then through an air filling gun; the invention is mainly used for solving the problem that the leaked hydrogen from the pipeline can float in the air, when the pipeline is monitored by the hydrogen monitor, the hydrogen monitor can detect the hydrogen which floats in the air and give an alarm, so that the specific leakage position of the conveying pipeline cannot be accurately found, the time for detecting the leakage point is prolonged, the detection personnel is in danger, and meanwhile, a plurality of detection personnel are often dispatched to carry out detailed detection at different positions in order to rapidly detect the position of the leakage point, thereby increasing the labor cost.
Description
Technical Field
The invention belongs to the technical field of hydrogen filling, and particularly relates to hydrogen filling equipment capable of detecting hydrogen leakage.
Background
The hydrogen is colorless, odorless, nontoxic, inflammable and explosive gas, is not easy to find when the hydrogen drifts in the air because the hydrogen is colorless and odorless, is nontoxic and is physiologically inert to human bodies, but if the content of the hydrogen in the air is increased, the risk of anoxic asphyxia is caused, meanwhile, because the hydrogen is inflammable and explosive gas, the hydrogen is extremely easy to explode when encountering static electricity or open fire, so that safety accidents are easy to be caused when the hydrogen leaks;
the basic structure of the existing hydrogen filling station system is as follows: the device comprises a hydrogen source, a hydrogen compressor, a hydrogen storage tank, filling equipment and the like, wherein the hydrogen storage tank is connected with the filling equipment through a conveying pipeline, so that hydrogen is filled into a hydrogen energy automobile through the conveying pipeline and the filling equipment, however, when the pipeline is used for too long, a certain ageing degree exists, and meanwhile, the sealing degree between the pipeline and an inflation gun is reduced, so that hydrogen leakage is easy to occur;
at present, because the hydrogen is colorless and odorless, when the leakage gap of the pipeline for conveying the hydrogen is too large, the hydrogen can make a sound in the leakage process, so that the staff can maintain and process in time, if the leakage gap of the pipeline for conveying the hydrogen is smaller, the hydrogen is not easy to find by the staff, however, when the leakage gap is smaller, the most common detection method is adopted to detect the pipeline in all directions through a hydrogen monitor,
however, because the hydrogen after leaking from the pipeline can drift in the air, when the pipeline is monitored by utilizing the hydrogen monitor, the hydrogen monitor can detect the hydrogen which drifts in the air and give an alarm, so that the specific leakage position of the conveying pipeline cannot be accurately found, the time for detecting the leakage point is prolonged, the detection personnel is in danger, and meanwhile, a plurality of detection personnel are often dispatched to carry out detailed detection at different positions for rapidly detecting the position of the leakage point, so that the labor cost is increased.
In view of this, in order to reduce the damage caused by the above-mentioned defects, the present invention has devised and developed a hydrogen filling device capable of detecting hydrogen leakage.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides hydrogen filling equipment capable of detecting hydrogen leakage, which comprises: the gas filling pile is used for filling hydrogen; the conveying pipeline is connected with the air-entrapping pile; an air gun is arranged on the other side of the conveying pipeline; the hydrogen flowing out of the air filling pile is filled into a hydrogen energy automobile through a conveying pipeline and then through an air filling gun;
the device also comprises a detection mechanism; the detection mechanism comprises a plurality of protection pipes; the protective tube is a transparent hose; the protective tube is made of high-pressure polyethylene material; the plurality of protection pipes are uniformly and fixedly connected to the outer surface of the conveying pipeline and the joint of the air entrainment gun and the conveying pipeline; the surfaces of the inner cavities of the plurality of protection pipes are fixedly connected with first ribbons;
the protective pipe is formed by combining two semicircular pipes, first, uniformly arranged first ribbons are stuck on the inner cavity surface of the semicircular pipes through glue, after the first ribbons are stuck, the conveying pipe is wrapped by the two semicircular pipes, the two semicircular pipes are stuck and combined into a whole pipe through glue, then, the end faces of the two sides of the protective pipe are stuck on the conveying pipe through glue, at the moment, the conveying pipe is positioned at the central position of the protective pipe, a cavity exists between the outer surface of the conveying pipe and the inner cavity surface of the protective pipe, and the protective pipe can be used later;
the first ribbon is a hydrogen detection adhesive tape; when the hydrogen detection adhesive tape is stuck on the inner cavity surface of the protective tube, firstly removing the adhesive layer on the hydrogen detection adhesive tape;
the surface of the inner cavity of the protective tube is stuck with hydrogen detection adhesive tape sections which are uniformly arranged; because the protective tube is formed by combining two semicircular tubes, when the two semicircular tubes are not combined, the hydrogen detection adhesive tape is uniformly adhered to the inner cavity surface of the semicircular tube.
Preferably, the outer surface of the protective pipe is sleeved with a protective ring, and the protective ring is mainly sleeved on the outer surface of the protective pipe at the middle position of the conveying pipeline; the inner wall of the protection ring is rotationally connected with uniformly arranged balls.
Preferably, the inner cavity surface of the protective tube is fixedly connected with a uniformly arranged interlayer;
the interlayer comprises an annular layer and an annular concave layer;
the surface of the inner cavity of the protective tube is fixedly connected with an annular layer which is uniformly arranged; the outer surface of the conveying pipeline is fixedly connected with an annular concave layer which is uniformly arranged;
when the protective tube is two half tubes, the annular layer is also a semicircular layer fixedly connected in the two half tubes; when the two semicircular layers are wrapped on the conveying pipeline and are adhered by using glue, the two opposite semicircular layers are fixed by the glue, and after the two semicircular layers are adhered and the glue is dried, both hands hold the two sides of the protective pipe and move the protective pipe, the annular layers are inserted into the annular concave layers, and then the end faces of the two sides of the protective pipe are adhered to the conveying pipe by the glue;
the annular layer and the annular concave layer are made of silica gel materials;
the contour surface of one side of the annular layer inserted into the annular concave layer is fixedly connected with second streamers which are uniformly arranged;
the second ribbon is a hydrogen detection adhesive tape; when the hydrogen detection adhesive tape is stuck on the outline surface of the annular layer, the adhesive layer on the hydrogen detection adhesive tape is removed.
The beneficial effects of the invention are as follows:
1. according to the hydrogen filling equipment capable of detecting hydrogen leakage, the protective pipe wraps the conveying pipeline, when a worker lifts the air gun to add hydrogen to the hydrogen energy automobile, the conveying pipeline of the air gun has a certain length and is easy to contact and rub with the ground, the protective pipe can avoid the direct contact and rub of the conveying pipeline and the ground, so that the effect of protecting the conveying pipeline is achieved, meanwhile, the protective pipe can isolate the damage of the external environment to the conveying pipeline, such as the direct contact of the conveying pipeline with the ground, rainwater and external gas, and the like, so that the conveying pipeline is corroded;
2. according to the hydrogen filling equipment capable of detecting hydrogen leakage, a certain pressure exists when hydrogen leaks from the conveying pipeline, the sprayed hydrogen can blow the first ribbon to fly when contacting with the first ribbon, and as the protective pipe is a transparent hose, when the first ribbon in the protective pipe is blown by the hydrogen and has obvious drifting phenomenon, workers can find the first ribbon which has drifting in a certain protective pipe through the transparent protective pipe, so that the problem that the conveying pipeline protected by the protective pipe leaks is solved, the conveying pipeline is divided into a plurality of sections to be monitored through the protective pipe, so that the leaking position of the conveying pipeline can be accurately and rapidly known, and safety accidents can be avoided due to the fact that the position of the conveying pipeline cannot be accurately leaked.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is an overall view of the present invention;
FIG. 2 is a perspective view of the detection mechanism of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2A in accordance with the present invention;
FIG. 4 is a partial cross-sectional view of the detection mechanism of the present invention;
FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 4;
in the figure: 1. aerating piles; 11. a delivery conduit; 12. an air gun is added; 2. a detection mechanism; 21. a protective tube; 22. a first streamer; 23. a hydrogen-detecting tape section; 24. a guard ring; 25. a ball; 3. an interlayer; 31. an annular layer; 32. an annular concave layer; 33. a second streamer.
Detailed Description
As shown in fig. 1 to 5, a hydrogen filling apparatus capable of detecting hydrogen leakage according to the present invention,
the general embodiment comprises: the gas filling pile 1 is used for filling hydrogen; a delivery conduit 11, said delivery conduit 11 being connected to the air-entrained pile 1; an air gun 12 is arranged on the other side of the conveying pipeline 11; the hydrogen flowing out of the air-entrapping pile 1 is firstly filled into a hydrogen energy automobile through a conveying pipeline 11 and then through an air-entrapping gun 12;
also comprises a detection mechanism 2; the detection mechanism 2 includes a plurality of guard pipes 21; the protective tube 21 is a transparent hose; the protective tube 21 is made of high-pressure polyethylene material; the plurality of protection pipes 21 are uniformly and fixedly connected to the outer surface of the conveying pipeline 11 and the connection part of the air gun 12 and the conveying pipeline 11; the surfaces of the inner cavities of the plurality of protection pipes 21 are fixedly connected with first ribbons 22;
the protection pipe 21 is formed by combining two semicircular pipes, first, uniformly arranged first ribbons 22 are stuck on the inner cavity surface of the semicircular pipes through glue, after the first ribbons 22 are stuck, the two semicircular pipes are wrapped on the conveying pipe 11, the two semicircular pipes are stuck and combined into a whole pipe through glue, then, the end faces on two sides of the protection pipe 21 are stuck on the conveying pipe 11 through glue, at the moment, the conveying pipe 11 is positioned at the center of the protection pipe 21, and a cavity exists between the outer surface of the conveying pipe 11 and the inner cavity surface of the protection pipe 21, and then, the protection pipe can be used;
the first streamer 22 is a hydrogen detection tape; when the hydrogen detection adhesive tape is stuck on the inner cavity surface of the protective tube 21, firstly removing the adhesive layer on the hydrogen detection adhesive tape;
the inner cavity surface of the protective tube 21 is stuck with hydrogen detection adhesive tape sections 23 which are uniformly arranged; because the protective tube 21 is formed by combining two semicircular tubes, when the two semicircular tubes are not combined, the hydrogen detection adhesive tape is uniformly adhered to the inner cavity surface of the semicircular tube;
in the specific use case, when the hydrogen in the delivery pipe 11 is not leaked;
when the conveying pipeline 11 provided with the protective pipe 21 is used, the protective pipe 21 wraps the conveying pipeline 11, and when a worker lifts the air gun 12 to add hydrogen to the hydrogen energy automobile, the conveying pipeline 11 of the air gun 12 has a certain length and is easy to contact with the ground for friction, so that the protective pipe 21 can avoid the direct contact friction of the conveying pipeline 11 with the ground, and the protective pipe 21 plays a role in protecting the conveying pipeline 11, and can isolate the damage of the conveying pipeline 11 caused by the external environment, such as the direct contact of the conveying pipeline 11 with the ground, rainwater and external gas, so that the conveying pipeline 11 is corroded;
when the hydrogen in the delivery pipe 11 leaks;
the protection pipes 21 are wrapped and fixed on the conveying pipeline 11, the conveying pipeline 11 can be divided into multiple sections by the protection pipes 21 to be protected, meanwhile, two semicircular protection pipes 21 can be more conveniently stuck together to protect the conveying pipeline 11, when the leakage of hydrogen occurs in the conveying pipeline 11 or a gap at the installation connection position of the conveying pipeline 11 and the air-entrapping gun 12, certain pressure exists when the hydrogen is sprayed out of the conveying pipeline 11, when the sprayed hydrogen is contacted with the first ribbon 22, the first ribbon 22 is blown to float, because the protection pipes 21 are transparent hoses, when the first ribbon 22 in the protection pipes 21 is blown by the hydrogen to have obvious drifting phenomenon, workers can find out the first ribbon 22 which is in a certain protection pipe 21 through the transparent protection pipes 21, so that the problem of leakage occurs in the conveying pipeline 11 protected by the protection pipes 21 is known, the situation that the conveying pipeline 11 is separated into multiple sections to be monitored, so that the leakage position of the conveying pipeline 11 can be accurately and rapidly known, the specific leakage position of the conveying pipeline 11 can be detected, the leakage position can be more accurately and rapidly detected, the leakage of the surrounding hydrogen can be prevented from being more accurately detected, and the leakage can be prevented from being detected by the artificial air by the safety detector, and the surrounding safety can be more accurately detected, and the leakage can be prevented from being detected by the surrounding the leakage position;
specifically, since the first ribbon 22 is a hydrogen detection adhesive tape for removing the adhesive layer, when leaked hydrogen is in contact with the first ribbon 22, the first ribbon 22 changes from yellow to black, so that color change occurs in the process of drifting, whether the conveying pipeline 11 is leaked or not can be more obviously known, the color change position can be rapidly checked, safety accidents caused by long hydrogen leakage time and high hydrogen content can be prevented, and meanwhile, leaked hydrogen is prevented from drifting into the air to cause harm to human bodies;
more specifically, the hydrogen detection adhesive tape section 23 is stuck on the surface of the inner cavity of the protective tube 21, and when leaked hydrogen is contacted with the hydrogen detection adhesive tape section 23, the hydrogen detection adhesive tape section 23 changes color, so that the eye-catching degree of the inner cavity of the transparent protective tube 21 can be further improved, and workers can find and maintain the transparent protective tube conveniently, thereby preventing the position where the leakage of the hydrogen cannot be detected quickly;
meanwhile, in the prior art, a mode of utilizing the hydrogen detection adhesive tape to wind at the joint between pipelines to detect whether hydrogen leakage exists or not exists, however, in the existing mode, the hydrogen detection adhesive tape is directly wound at the joint of the pipelines, so that the hydrogen detection adhesive tape is exposed in the external environment and can be corroded under the influence of the external environment for a long time, the service life of the hydrogen detection adhesive tape is reduced, meanwhile, the hydrogen cannot be prevented from leaking into the external environment, personnel around a leakage point are damaged, meanwhile, the part of the pipeline except the joint is not detected, the leakage point cannot be detected rapidly and accurately when the pipeline leaks, and the maintenance cannot be performed rapidly;
when the detection mechanism 2 is further used, the detection mechanism 2 can still be used when the hydrogen storage tanks are connected through pipelines, and the detection mechanism 2 is arranged on the pipelines connected between the hydrogen storage tanks for detection and protection, so that whether leakage exists at the connection part of the protection pipeline 21 and the pipelines can be detected; meanwhile, the detection mechanism 2 is arranged on a pipeline connected with the hydrogen storage tank and the air filling pile 1, and the pipeline between the hydrogen storage tank and the air filling pile 1 can be detected and protected; the hydrogen storage tank can be used on a transport vehicle for transporting hydrogen and a hydrogen filling pipeline for filling the hydrogen storage tank with hydrogen; and can be independently used on a pipeline for conveying hydrogen.
In an alternative embodiment, the outer surface of the protective tube 21 is sleeved with a protective ring 24, and the protective ring 24 is mainly sleeved on the outer surface of the protective tube 21 at the middle position of the conveying pipeline 11; the inner wall of the protection ring 24 is rotatably connected with uniformly arranged balls 25;
when the device works, the protective ring 24 with the anti-rolling balls 25 is sleeved on the outer surface of the protective tube 21 at the middle part of the conveying pipeline 11, and when the hydrogen energy automobile is filled with hydrogen by the air gun 12, the conveying pipeline 11 is easy to drag and rub with the ground due to the fact that the length of the conveying pipeline 11 is fixed, so that the conveying pipeline 11 is damaged, and when the conveying pipeline 11 is contacted with the ground, the protective ring 24 with the rolling balls 25 slides through the rolling balls 25, so that the friction force is reduced;
meanwhile, when the detection mechanism 2 is used between hydrogen tanks or only for detection of a pipe, the guard ring 24 with the balls 25 may not be used.
In a specific embodiment, the inner cavity surface of the protection tube 21 is fixedly connected with a uniformly arranged interlayer 3;
the interlayer 3 comprises an annular layer 31 and an annular concave layer 32;
the inner cavity surface of the protection tube 21 is fixedly connected with an annular layer 31 which is uniformly arranged; the outer surface of the conveying pipeline 11 is fixedly connected with an annular concave layer 32 which is uniformly arranged;
when the protective tube 21 is two half tubes, the annular layer 31 is also a semicircular layer fixedly connected in the two half tubes; when the two half pipes are wrapped around the conveying pipeline 11 and are adhered by using glue, the two opposite half round layers are fixed by the glue, and when the two half round layers are adhered and the glue is dried, both hands hold the two sides of the protection pipe 21 and move the protection pipe 21, the annular layer 31 is inserted into the annular concave layer 32, and then the end faces of the two sides of the protection pipe 21 are adhered to the conveying pipe by the glue;
the annular layer 31 and the annular concave layer 32 are made of silica gel materials;
the second ribbon 33 which is uniformly arranged is fixedly connected on the contour surface of one side surface of the annular layer 31 inserted into the annular concave layer 32;
the second ribbon 33 is a hydrogen detecting tape; when the hydrogen detection adhesive tape is stuck on the outline surface of the annular layer 31, firstly removing the adhesive layer on the hydrogen detection adhesive tape;
when the device works, as each protective tube 21 is internally provided with the interlayer 3, the interlayer 3 can divide the cavity inside the protective tube 21 into a plurality of cavities, when a certain part of the conveying pipeline 11 leaks, the leaked hydrogen can be sprayed into the cavity formed by the interlayer 3, so that the first ribbon 22 and the hydrogen detection adhesive tape section 23 change color, and the leakage range can be reduced to the cavity formed by the two interlayers 3 at the moment, so that a worker can know the specific leakage position more conveniently;
specifically, the annular layer 31 is inserted into the annular concave layer 32 after the installation of the protection tube 21, when the excessive pressure of the hydrogen gas in the cavity formed by the interlayer 3 is increased, the protection tube 21 is extruded and even the protection tube 21 is broken, so that the hydrogen gas leaks into the environment, when the protection tube 21 is expanded under the pressure of the hydrogen gas, the expanded protection tube 21 drives the annular layer 31 to gradually separate from the cavity of the annular concave layer 32, when the annular layer 31 separates from the annular concave layer 32, the adjacent cavities formed by the interlayer 3 are communicated, so that the hydrogen gas in the leaked hydrogen gas cavity flows into the partition wall cavity, the excessive pressure of the gas received by a certain cavity can be prevented in the process, the hydrogen gas is caused to float into the external environment by the broken protection tube 21,
more specifically, when the annular layer 31 is separated from the annular concave layer 32, the second ribbon 33 is pulled out at this time, and when the second ribbon 33 receives the wind force flowing through the hydrogen, the second ribbon swings in the direction of the flow of the hydrogen, in this process, the flow direction of the hydrogen can be judged, and the hydrogen can be judged to flow out of the chamber according to the flow direction of the hydrogen, so that the position of the hydrogen leakage can be conveniently determined, and meanwhile, the second ribbon 33 is a hydrogen detection adhesive tape, and changes color after encountering the hydrogen, so that the second ribbon 33 is more striking.
The foregoing embodiments illustrate and describe the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A hydrogen filling apparatus that can detect hydrogen leakage, comprising: the gas filling pile (1), wherein the gas filling pile (1) is used for filling hydrogen; the conveying pipeline (11), the conveying pipeline (11) is connected with the air-entrapping pile (1); an air gun (12) is arranged on the other side of the conveying pipeline (11); the hydrogen flowing out of the air-filling pile (1) is firstly filled into a hydrogen energy automobile through a conveying pipeline (11) and then through an air-filling gun (12);
it is characterized by also comprising a detection mechanism (2); the detection mechanism (2) comprises a plurality of protective tubes (21); the protective tube (21) is a transparent hose; the plurality of protection pipes (21) are uniformly and fixedly connected to the outer surface of the conveying pipeline (11) and the connection part of the air-entraining gun (12) and the conveying pipeline (11); the surfaces of the inner cavities of the plurality of protection pipes (21) are fixedly connected with first ribbons (22);
the inner cavity surface of the protective tube (21) is fixedly connected with a uniformly arranged interlayer (3);
the interlayer (3) comprises an annular layer (31) and an annular concave layer (32);
the surface of the inner cavity of the protective tube (21) is fixedly connected with an annular layer (31) which is uniformly arranged; the outer surface of the conveying pipeline (11) is fixedly connected with an annular concave layer (32) which is uniformly arranged;
the annular layer (31) and the annular concave layer (32) are made of silica gel materials;
the second ribbon (33) which is uniformly arranged is fixedly connected to the contour surface of one side surface of the annular concave layer (32) inserted into the annular layer (31);
the second ribbon (33) is a hydrogen detecting tape.
2. A hydrogen filling apparatus for detecting hydrogen leakage according to claim 1, wherein: the first streamer (22) is a hydrogen detection tape.
3. A hydrogen filling apparatus for detecting hydrogen leakage according to claim 1, wherein: the inner cavity surface of the protective tube (21) is stuck with hydrogen detection adhesive tape sections (23) which are uniformly arranged.
4. A hydrogen filling apparatus for detecting hydrogen leakage according to claim 1, wherein: the outer surface of the protective tube (21) is sleeved with a protective ring (24); the inner wall of the protection ring (24) is rotationally connected with uniformly arranged balls (25).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210633737.1A CN114962988B (en) | 2022-06-07 | 2022-06-07 | Hydrogen filling equipment capable of detecting hydrogen leakage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210633737.1A CN114962988B (en) | 2022-06-07 | 2022-06-07 | Hydrogen filling equipment capable of detecting hydrogen leakage |
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| CN114962988A CN114962988A (en) | 2022-08-30 |
| CN114962988B true CN114962988B (en) | 2024-01-26 |
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| JP2002082010A (en) * | 2000-09-11 | 2002-03-22 | Nec Yamagata Ltd | Leak detecting tube |
| JP2018004505A (en) * | 2016-07-05 | 2018-01-11 | 東京瓦斯株式会社 | Hydrogen gas detection tape |
| KR20200029887A (en) * | 2018-09-11 | 2020-03-19 | 하이리움산업(주) | Hydrogen sensing tape |
| CN210771472U (en) * | 2019-11-11 | 2020-06-16 | 广东省坦途工程技术有限公司 | Safety protection system for buried natural gas pipeline |
| CN214037886U (en) * | 2020-11-09 | 2021-08-24 | 广东清极氢能有限公司 | Hydrogen filling pipeline with gas leakage reminding function |
| CN114110442A (en) * | 2021-11-25 | 2022-03-01 | 安徽安凯汽车股份有限公司 | Hydrogen leakage early warning device for hydrogen fuel cell passenger car |
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2022
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002082010A (en) * | 2000-09-11 | 2002-03-22 | Nec Yamagata Ltd | Leak detecting tube |
| JP2018004505A (en) * | 2016-07-05 | 2018-01-11 | 東京瓦斯株式会社 | Hydrogen gas detection tape |
| KR20200029887A (en) * | 2018-09-11 | 2020-03-19 | 하이리움산업(주) | Hydrogen sensing tape |
| CN210771472U (en) * | 2019-11-11 | 2020-06-16 | 广东省坦途工程技术有限公司 | Safety protection system for buried natural gas pipeline |
| CN214037886U (en) * | 2020-11-09 | 2021-08-24 | 广东清极氢能有限公司 | Hydrogen filling pipeline with gas leakage reminding function |
| CN114110442A (en) * | 2021-11-25 | 2022-03-01 | 安徽安凯汽车股份有限公司 | Hydrogen leakage early warning device for hydrogen fuel cell passenger car |
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|---|---|
| CN114962988A (en) | 2022-08-30 |
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