CN214840082U - Safe hydrogenation station based on immersion hydrogen system - Google Patents
Safe hydrogenation station based on immersion hydrogen system Download PDFInfo
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- CN214840082U CN214840082U CN202023038497.6U CN202023038497U CN214840082U CN 214840082 U CN214840082 U CN 214840082U CN 202023038497 U CN202023038497 U CN 202023038497U CN 214840082 U CN214840082 U CN 214840082U
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Abstract
A safe hydrogenation station based on an immersion hydrogen system comprises a hydrogen storage system, wherein the hydrogen storage system is connected with a hydrogenation machine through a hydrogen conveying system, and the hydrogenation machine is provided with a tail end hydrogenation system; the hydrogen storage system comprises a hydrogen tank, the hydrogen tank is arranged in the integrated box body, and a liquid medium is arranged between the hydrogen tank and the integrated box body; the hydrogen conveying system comprises a hydrogen conveying pipeline, the hydrogen conveying pipeline is arranged in the water storage pipeline, and a liquid medium is arranged between the hydrogen conveying pipeline and the water storage pipeline; the tail end hydrogenation system comprises a hydrogen conveying hose, one end of the hydrogen conveying hose is connected with the hydrogenation machine, the other end of the hydrogen conveying hose is connected with the hydrogenation gun, the hydrogen conveying hose is arranged in the water conveying hose, and a liquid medium is arranged between the hydrogen conveying hose and the water conveying hose. The utility model discloses a with all hydrogen-containing devices in the hydrogenation station, all soak under water or aquatic completely to all hydrogen-containing equipment carry out whole water isolation protection from the starting point to the terminal in to the hydrogenation, thoroughly improve the security in hydrogenation station.
Description
Technical Field
The utility model belongs to clean energy application, the more specifically safe hydrogenation station based on immersion hydrogen system that says so.
Background
According to the source of hydrogen, the hydrogen station has two supply modes, namely an internal supply mode and an external supply mode, wherein the first type is an in-station hydrogen production hydrogen station; the second type is an external hydrogen supply hydrogen station. At present, all global hydrogen stations are mainly external hydrogen supply hydrogen stations. The upstream of the external hydrogen supply hydrogen adding station receives hydrogen gas in three modes, namely gaseous hydrogen fuel trailer transportation, liquid hydrogen fuel trailer transportation hydrogen gas and gaseous hydrogen fuel pipeline transportation. In addition, a promising transportation mode, namely organic liquid hydrogen carrier transportation (LOHC), also called hydrogen oil transportation, is provided, but because of the high transportation cost, high dehydrogenation equipment cost and high energy consumption, the organic liquid hydrogen carrier transportation is rarely used as a hydrogen supply mode for a hydrogenation station temporarily.
The hydrogen filling station is an important infrastructure for the industrialization and commercialization of the hydrogen fuel cell. At present, in order to support the development of fuel cell vehicles, hydrogen energy fuel cell vehicle supporting facilities are actively constructed in various countries. According to the planning, 100 hydrogenation stations are built in China by 2020, and 1000 hydrogenation stations are built by 2030.
Currently, in addition to the cost pressure of upstream hydrogen fuel transport and power supply, is a factor that limits further development of hydrogen energy; safety issues with hydrogen stations are also important limiting factors limiting large-scale application of hydrogen energy.
Although the safety accidents of the hydrogen stations are not reported at present, the hydrogen stations which are put into operation obviously adopt very high safety protection measures, and have higher requirements on the aspects of fire prevention, explosion prevention, static electricity prevention and the like according to relevant specifications such as GB/T34583 and 2017 hydrogen storage device safety technical requirements for hydrogen stations, GB/T34584 and 2017 hydrogen station safety technical specifications, GB 50516 and 2010 hydrogen station technical specifications. In particular, in terms of static electricity prevention, taking a certain shipped hydrogenation station as an example, the specific hydrogenation operation is as follows: when the vehicle enters the hydrogen station, the vehicle is flamed out and enters the area to be detected. The working personnel check the appearance of the vehicle body, the hydrogenation gas cylinder, the temperature of the vehicle body and the like to ensure that no abnormity exists, and the vehicle enters the hydrogenation area in an electric mode. Before hydrogenation, workers also need to use a leak detector to detect that no leakage exists in the vehicle, and then release static electricity and hydrogenate. The clothes and caps of hydrogenation personnel are all antistatic, and before operation, grounding metal balls distributed around the hydrogenation station are touched by hands; after the operations are completed, a hydrogenator inserts a special hydrogenation gun into the hydrogenation hole, and in the hydrogenation process, the body always clamps the calipers and is grounded by an electric wire. It takes 10 to 20 minutes to discharge the static electricity of the vehicle body, whereas the actual hydrogen refueling process takes only 3 minutes. The overlong safe operation time in the hydrogenation process is also an important aspect for limiting the application of hydrogen energy.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a safe hydrogenation station based on immersion hydrogen system utilizes protection, the isolation of water, solves hydrogen storage device, hydrogenation pipeline, hydrogenation machine (island), hydrogenation rifle static safeguard measure loaded down with trivial details, put the static for a long time, the small difficult safety protection problems such as detecting of leaking of hydrogen now in the hydrogenation station.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a safe hydrogenation station based on an immersion hydrogen system is characterized in that: the hydrogen storage system is connected with a hydrogenation machine through a hydrogen conveying system, and a tail end hydrogenation system is arranged on the hydrogenation machine;
the hydrogen storage system comprises a hydrogen tank, the hydrogen tank is arranged in the integrated box body, and a liquid medium is filled between the hydrogen tank and the integrated box body;
the hydrogen conveying system comprises a hydrogen conveying pipeline, the hydrogen conveying pipeline is arranged in the water storage pipeline, and a liquid medium is filled between the hydrogen conveying pipeline and the water storage pipeline;
the tail end hydrogenation system comprises a hydrogen conveying hose, one end of the hydrogen conveying hose is connected with the hydrogenation machine, the other end of the hydrogen conveying hose is connected with the hydrogenation gun, the hydrogen conveying hose is arranged in the water conveying hose, and a liquid medium is filled between the hydrogen conveying hose and the water conveying hose.
Furthermore, an air storage room is arranged at the top of the integrated box body, the top of the air storage room is transparent, and an exhaust valve is arranged on the air storage room.
Further, an underwater image monitoring device is arranged on the inner side wall of the integrated box body and at a position higher than the hydrogen tank.
Furthermore, a water replenishing valve is arranged at the top of the integrated box body, and a water leakage valve is arranged at the bottom of the integrated box body.
Further, a gas observation window is arranged at the top of the water storage pipeline and connected with the hydrogen exhaust device; and an image monitoring device is arranged above the observation window.
Furthermore, a water compartment is arranged in the water storage pipeline and is used for sectionally isolating the hydrogen conveying pipeline.
Further, the eccentricity between the water storage pipeline and the hydrogen conveying pipeline is not more than 5%.
Further, the liquid medium is water.
The utility model has the advantages that:
one of them, the utility model discloses a to add hydrogen station in whole hydrogen-containing device, including hydrogen tank, defeated hydrogen pipeline, defeated hydrogen hose soak in aqueous completely to all hydrogen-containing equipment carry out whole water isolation protection from the starting point to the terminal in adding hydrogen, effectively reduced relevant dangers such as naked light, static, promoted the security that adds hydrogen station.
Secondly, when hydrogen leakage occurs in the hydrogen storage system or the hydrogen conveying pipeline, the leaked hydrogen can be gathered to the gas storage room or the gas observation window and then discharged, so that the hydrogen is prevented from leaking to the air immediately, and the safety of the hydrogen filling station is further improved.
And thirdly: visual monitoring of gas leakage can be achieved through the image monitoring equipment, a worker can conveniently find a leakage section quickly, and maintenance efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a typical arrangement of a safety hydrogen station based on an immersed hydrogen system.
FIG. 2 is a schematic diagram of the land-based hydrogen storage system of FIG. 1.
Fig. 3 is a schematic structural diagram of the hydrogen transportation system in fig. 1.
FIG. 4 is a schematic diagram of the terminal hydrogenation system of FIG. 1.
Fig. 5 is a schematic cross-sectional view of a hydrogen hose and a water hose.
Wherein: a hydrogen storage system 1; a hydrogen pipe ditch 2; a hydrogen delivery system 3; a hydrogenation machine 4; a tail end hydrogenation system 5, a hydrogenation station management building 7 and a liquid medium 8;
a hydrogen tank 101, an integrated box body 102, a hydrogen valve 103, a water replenishing valve 104, an exhaust valve 105, an observation window 106, a gas storage room 107, underwater image monitoring equipment 108 and a water leakage valve 109;
a hydrogen conveying pipeline 301, a water storage pipeline 302, a water compartment 303, a valve 304, a flange 305, a gas observation window 306, an exhaust valve 307, a hydrogen discharging device 308 and an image monitoring device 309;
a hydrogen conveying hose 501, a water conveying hose 502, a water seal end 503, a hydrogen end 504 and a hydrogenation gun 505.
Detailed Description
The invention will be further described in detail with reference to the drawings and the following detailed description, which are provided for the purpose of clearly understanding the invention and are not intended to limit the invention.
As shown in fig. 1, the safety hydrogen station based on the immersion hydrogen system comprises a hydrogen storage system 1, wherein the hydrogen storage system 1 is connected with a hydrogenation machine 4 through a hydrogen transmission system 3, and a tail end hydrogenation system 5 is arranged on the hydrogenation machine 4.
The hydrogen storage system 1 can be placed on the ground or underground, and hydrogen is isolated from the outside, so that relevant dangerous sources such as static electricity, open fire and the like are thoroughly isolated. As shown in fig. 2, the hydrogen storage system 1 includes a hydrogen tank 101, the hydrogen tank 101 is disposed in an integrated tank 102, a liquid medium 8 is filled between the hydrogen tank 101 and the integrated tank 102, and the liquid medium 8 is water.
The top of the integrated box body 102 is provided with a gas storage room 107 for storing leaked hydrogen for a short time; the top of the gas storage room 107 is transparent and is used for observing the leakage condition of the hydrogen tank 101; an exhaust valve 105 is arranged on the gas storage room 107 and used for discharging hydrogen to the outside; an underwater image monitoring device 108 is provided on the inner side wall of the integrated tank 102 at a position higher than the hydrogen tank 101 for monitoring a gas signal inside the integrated tank. A water replenishing valve 104 is arranged at the top of the integrated box body 102 and is used for replenishing water into the integrated box; the bottom of the integrated box 102 is provided with a water leakage valve 109 for draining water. Transparent observation windows 106 are arranged around the integrated box body 102 and are used for observing the gas leakage condition of the hydrogen tank 101.
The hydrogen tank 101 is provided with a hydrogen valve 103 for inputting or outputting hydrogen to the hydrogen tank.
The hydrogen tank 101 is a conventional medium-high pressure gaseous storage device that can be used for hydrogen transportation in long tube trailers. The hydrogen tank 101 is made of metal or novel light composite material, and the relevant requirements need to meet relevant standards and regulations such as GB 4962-.
The integrated tank 102 is retrofitted from a conventional tube trailer transport hydrogen storage frame. The shell is made of the same material as that of the shell of the conventional container, and the shell has watertight/airtight conditions.
The hydrogen conveying system 3 is used for placing a pipeline in the hydrogen conveying process into water and isolating relevant dangerous sources in the hydrogen conveying process. The hydrogen conveying system 3 is arranged in the hydrogen pipe ditch 2. As shown in fig. 3, the hydrogen transportation system 3 includes a hydrogen transportation pipeline 301, the hydrogen transportation pipeline 301 is disposed in a water storage pipeline 302, and a space between the hydrogen transportation pipeline 301 and the water storage pipeline 302 is filled with water.
A gas observation window 306 is arranged at the top of the water storage pipeline 302, and the gas observation window 306 is connected with a hydrogen discharge device 308; the hydrogen discharging device 8 is provided with an exhaust valve 7
An image monitoring device 309 is disposed above the gas observation window 306 for monitoring a gas signal in the gas observation window 306, so that gas leakage can be monitored and observed.
A water compartment 303 is arranged in the water storage pipeline 302 and used for sectionally isolating the hydrogen conveying pipeline 301. The water storage pipeline 302 and the hydrogen conveying pipeline 301 are concentric devices or have eccentricity not more than 5%.
The hydrogen transport pipe 301 is a conventional medium/high pressure hydrogen transport pipe for transporting hydrogen gas. The hydrogen pipeline 301 is made of metal pipe, and the relevant requirements need to meet relevant standards and regulations such as GB 4962 + 2008 'safety technical code for hydrogen use'. The hydrogen pipeline 301 is provided with a valve 304, and the valve 304 is a ball valve, a stop valve and the like of a common hydrogen pipeline. The different hydrogen conveying pipelines 301 are connected by flanges 305.
The water storage pipeline 302 can be made of metal pipes, PVC pipes or other transparent pipes, but the water in the water storage pipeline is required to be prevented from overflowing and leaking.
The water compartment 303 is used for separating water compartments of different valves, flanges or other pipeline connecting and adjusting structures. The main functions are as follows: a) the concentricity of the water storage pipe and the hydrogen delivery pipe caused by the overlong water storage pipe can not be ensured, and the concentricity of the water storage pipe and the hydrogen delivery pipe at different sections can be ensured by utilizing the water compartment; b) the reliability of the water delivery pipeline is low due to the fact that the water delivery pipeline is too long, and the reliability of the whole system is further influenced; c) the collection and distribution of leaked hydrogen are controlled, the leakage scale is reduced, and the monitoring sensitivity is improved.
The gas observation window 306 is made of transparent and visible pipes, such as organic glass, acrylic, and the like. Is tightly connected with the water storage pipeline. It has the main functions as follows: 1) collecting hydrogen gas leakage of the corresponding section of hydrogen conveying pipeline; 2) observing hydrogen leakage of the corresponding section of pipeline, valve or flange; 3) the leakage hydrogen is exhausted by the combined action of the air exhaust valve and the air exhaust valve; 4) and providing a video monitoring window for the image monitoring equipment.
The hydrotreater 4 is similar to an oil-filling unit for metering and charging.
The end hydrogenation system 5 is used for communicating the hydrogenation machine 4 and a hydrogen filling vehicle, and the structure of the end hydrogenation system is shown in fig. 4. The terminal hydrogenation system 5 comprises a hydrogen conveying hose 501, the hydrogen conveying hose 501 is arranged in a water conveying hose 502, and water is filled between the hydrogen conveying hose 501 and the water conveying hose 502. One end of the hydrogen conveying hose 501 is connected with the hydrogenation machine 4 through a hydrogen end connector 504, and the other end of the hydrogen conveying hose is connected with a hydrogenation gun 505 through the hydrogen end connector 504; one end of the water delivery hose 502 is connected with the hydrogenation machine 4 through a water seal end connector 503, and the other end is connected with the hydrogenation gun 505 through the water seal end connector 503.
The hydrogen-conveying hose 501 is used for conveying hydrogen gas at the end. The water delivery hose 502 is used for storing water at the tail end, and the pipe shell of the water delivery hose is made of transparent materials so as to observe the hydrogen leakage condition in real time. When bubbles are present in the water hose 502, a hydrogen leak occurs at the end, and the end hydrogenation system 5 needs to be replaced. The water seal end fitting 503 is used to seal the water in the water hose 502 and can be removed if necessary for maintenance. The hydrogen end connector 504 is used for connecting the hydrogenation gun 505 and the hydrogenation machine 4. The hydrogenation lance 505 is used to charge the vehicle with hydrogen.
When hydrogen in the hydrogen tank 101 leaks, the leaked hydrogen forms bubbles, and the underwater image monitoring equipment 108 finds the movement track of the bubbles at the first time and gives an alarm. The leaking hydrogen will concentrate in the storage space 107, when the pressure in the storage space increases gradually, the exhaust valve 105 opens. When hydrogen gas continuously leaks, and the hydrogen gas cannot be effectively discharged through the exhaust valve, the water leakage valve 109 is opened to drain water in the integrated tank 102.
When hydrogen leakage occurs in the hydrogen conveying pipeline 301, the leaked gas is gathered in the gas observation window 306, the leaked hydrogen forms a series of bubbles in water, and the image monitoring device 309 detects the motion track of the bubbles in water to remind operation and maintenance personnel of paying attention to the state of the device. After a certain period of time, the purge valve 307 is opened, and the hydrogen discharge device 308 discharges the leaking hydrogen gas.
When bubbles are present in the water hose 502, a hydrogen leak occurs at the end, and the end hydrogenation system 5 needs to be replaced.
By adopting the system, the hydrogen storage and hydrogen transportation are completely immersed in the water in the whole hydrogen station. The influence of relevant dangerous sources such as open fire, static electricity and the like on the hydrogenation station is effectively reduced, the static electricity discharge time of vehicles and personnel is reduced, and the hydrogenation time is greatly shortened.
Details not described in this specification are within the skill of the art that are well known to those skilled in the art.
Claims (8)
1. A safe hydrogenation station based on an immersion hydrogen system is characterized in that: the device comprises a hydrogen storage system (1), wherein the hydrogen storage system (1) is connected with a hydrogenation machine (4) through a hydrogen conveying system (3), and a tail end hydrogenation system (5) is arranged on the hydrogenation machine (4);
the hydrogen storage system (1) comprises a hydrogen tank (101), wherein the hydrogen tank (101) is arranged in an integrated box body (102), and a liquid medium (8) is filled between the hydrogen tank (101) and the integrated box body (102);
the hydrogen conveying system (3) comprises a hydrogen conveying pipeline (301), the hydrogen conveying pipeline (301) is arranged in a water storage pipeline (302), and a liquid medium (8) is filled between the hydrogen conveying pipeline (301) and the water storage pipeline (302);
the tail end hydrogenation system (5) comprises a hydrogen conveying hose (501), one end of the hydrogen conveying hose (501) is connected with the hydrogenation machine (4), the other end of the hydrogen conveying hose (501) is connected with the hydrogenation gun (505), the hydrogen conveying hose (501) is arranged in the water conveying hose (502), and a liquid medium (8) is filled between the hydrogen conveying hose (501) and the water conveying hose (502).
2. The safety hydrogenation station based on an immersion hydrogen system of claim 1, wherein: the top of the integrated box body (102) is provided with an air storage room (107), the top of the air storage room (107) is transparent, and an exhaust valve (105) is arranged on the air storage room (107).
3. The safety hydrogenation station based on an immersion hydrogen system of claim 2, wherein: an underwater image monitoring device (108) is arranged on the inner side wall of the integrated box body (102) at a position higher than the hydrogen tank (101).
4. A safety hydrogen station based on an immersion hydrogen system according to claim 2 or 3, characterized in that: the top of the integrated box body (102) is provided with a water replenishing valve (104), and the bottom of the integrated box body (102) is provided with a water leakage valve (109).
5. The safety hydrogenation station based on an immersion hydrogen system of claim 1, wherein: the top of the water storage pipeline (302) is provided with a gas observation window (306), and the gas observation window (306) is connected with a hydrogen discharge device (308); an image monitoring device (309) is arranged above the gas observation window (306).
6. The safety hydrogenation station based on an immersion hydrogen system of claim 5, wherein: and a water separation bin (303) is arranged in the water storage pipeline (302) and is used for sectionally isolating the hydrogen conveying pipeline (301).
7. The safety hydrogenation station based on an immersion hydrogen system of claim 6, wherein: the eccentricity between the water storage pipeline (302) and the hydrogen delivery pipeline (301) is not more than 5%.
8. The safety hydrogenation station based on an immersion hydrogen system of claim 1, wherein: the liquid medium (8) is water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023038497.6U CN214840082U (en) | 2020-12-16 | 2020-12-16 | Safe hydrogenation station based on immersion hydrogen system |
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| CN202023038497.6U CN214840082U (en) | 2020-12-16 | 2020-12-16 | Safe hydrogenation station based on immersion hydrogen system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604802A (en) * | 2022-02-28 | 2022-06-10 | 浙江天能氢能源科技有限公司 | Self-counterweight hydrogen power system for forklift |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114604802A (en) * | 2022-02-28 | 2022-06-10 | 浙江天能氢能源科技有限公司 | Self-counterweight hydrogen power system for forklift |
| CN114604802B (en) * | 2022-02-28 | 2023-11-24 | 浙江天能氢能源科技有限公司 | Self-counterweight hydrogen-electricity system for forklift |
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