High pressure hydrogen sampling device

Abstract

The present invention discloses a high-pressure hydrogen sampling device, including a shell placed on a plane, and a high-pressure spiral tube is installed on the left side of the shell, and a control valve is provided at one end of the high-pressure spiral tube, and the high-pressure spiral tube has high pressure resistance and can be adjusted in any direction; a pressure regulator is arranged inside the lower part of the shell, and a high-pressure metal hose is installed at the left end of the shell; two sets of relief valves and pressure gauges are arranged inside the upper part of the shell; and also include: a bearing frame plate, which is fixedly installed on the outer side of the left end of the shell; a storage tank, which is spirally opened inside the bearing frame plate; a first rotating rod, whose movable shaft is installed inside the bearing frame plate; and a protective angle, which is installed at the upper corner of the shell. The high-pressure hydrogen sampling device is easy to control, solves the problem of difficult and dangerous pressure control of manual switch valves, and is convenient for storing the high-pressure metal hose for carrying and use.

Description

Technical Field

[0001] The present invention relates to the technical field related to high-pressure hydrogen sampling, and in particular to a high-pressure hydrogen sampling device. Background Art

[0002] At present, the hydrogen energy industry is developing rapidly at home and abroad. As an important link in the industrial chain, hydrogen refueling stations are closely related to the quality of hydrogen and the operating efficiency and service life of hydrogen compressors and hydrogen fuel cells. In the process of hydrogen production, purification, compression at hydrogen refueling stations and filling of hydrogen refueling machines, the purity needs to be strictly controlled. Due to its high working pressure (45Mpa), the sampling operation is very dangerous. At present, there are no safe and reliable finalized products on sale in China. At present, the maximum pressure level of hydrogen sampling devices at home and abroad is 25Mpa, which is only used for sampling by hydrogen manufacturers and hydrogen transport vehicles, and there are no qualified products for sampling from behind compressors, hydrogen storage tanks and gas dispensers. Through the investigation of domestic hydrogen sampling technology, no safe, simple and reliable high-pressure hydrogen sampling devices at the 45Mpa level were found. At the same time, the high-pressure metal hoses installed are inconvenient to store, which makes it inconvenient to carry and use.

[0003] Therefore, we proposed a high-pressure hydrogen sampling device to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a high-pressure hydrogen sampling device to solve the problem raised by the above background technology that the existing high-pressure hydrogen sampling devices on the market are dangerous when used due to the high working pressure of hydrogen (45Mpa), and the high-pressure metal hose is inconvenient to store, resulting in inconvenience in carrying and use.

[0005] To achieve the above object, the present invention provides the following technical solution: a high-pressure hydrogen sampling device, comprising a shell placed on a plane, a high-pressure spiral tube installed on the left side of the shell, a control valve provided at one end of the high-pressure spiral tube, and the high-pressure spiral tube has high pressure bearing capacity and can be adjusted in any direction;

[0006] A pressure regulator is arranged inside the lower part of the shell, and a high-pressure metal hose is installed at the left end of the shell, and an air outlet is arranged at one end of the high-pressure metal hose, and one end of the high-pressure metal hose is connected with the sampling bottle when in use;

[0007] Two sets of relief valves and pressure gauges, both of which are arranged inside the upper part of the shell;

[0008] Also included are:

[0009] A carrier plate, which is fixedly mounted on the outer side of the left end of the shell, and the carrier plate is located on the periphery of the high-pressure metal hose;

[0010] A storage tank is spirally disposed inside the carrier plate to limit the position of the high-pressure metal hose when not in use;

[0011] A first rotating rod, a movable shaft of which is installed inside the carrier plate, and one end of the first rotating rod is rotatably connected to a second rotating rod, and a through groove is provided inside the second rotating rod;

[0012] The protective corners are installed at the upper corners of the shell to prevent operators from bumping into the corners of the shell and causing injuries.

[0013] Preferably, the connection point between the first rotating rod and the second rotating rod is located at the interface between the high-pressure metal hose and the shell, and a groove is reserved in the middle of the first rotating rod, and a first positioning hole is provided inside the first rotating rod and on the carrier plate, so that when the high-pressure metal hose is placed in the storage tank, the rotated first rotating rod can limit the high-pressure metal hose on one side after being stored.

[0014] Preferably, the first positioning hole opened inside the first rotating rod and the first positioning hole opened on the supporting frame plate are symmetrically arranged about the connection point between the first rotating rod and the supporting frame plate, and the first positioning hole is arranged in a square structure, so that when the second rotating rod is rotated to overlap with the first rotating rod, and the first rotating rod is rotated from horizontal to vertical, the cooperation between the positioning pin movably arranged inside the second rotating rod and the first positioning hole can synchronously fix the rotated first rotating rod and the second rotating rod.

[0015] Preferably, the high-pressure metal hose is a thin-diameter stainless steel seamless tube, and the high-pressure metal hose is fitted to the inside of the storage tank, so that the pressure resistance level is improved and the safety is more guaranteed.

[0016] Preferably, a movable block is slidably provided at one end of the second rotating rod, and a positioning pin is installed at one end of the movable block, and a pressure spring with a pushing effect is welded between the movable block and the second rotating rod, so that the movable block can drive the positioning pin to move under the action of the pressure spring.

[0017] Preferably, one end of the locating pin is located inside the second locating hole, and the second locating holes are distributed at equal angles about the interface between the high-pressure metal hose and the shell, and the locating pin forms a concave-convex fit with the second locating hole and the first locating hole respectively, so that when the first rotating rod limits one side of the high-pressure metal hose, the second rotating rod rotates according to the position of the air outlet installed at one end of the high-pressure metal hose, and the rotated second rotating rod is fixed by the cooperation between the locating pin and the second locating hole, and the square setting can prevent the first rotating rod and the second rotating rod from rotating.

[0018] Preferably, an adjustment block is slidably arranged inside the through groove, and a second clamping plate is fixedly installed inside the adjustment block, and a first clamping plate is installed on the internal bearing of the adjustment block, and a torsion spring is welded between the first clamping plate and the second clamping plate, and at the same time, the first clamping plate and the second clamping plate are both attached to the outer side of the air outlet, so that when the second rotating rod is rotated to a position opposite to the air outlet, the air outlet can be clamped and fixed by the first clamping plate and the second clamping plate.

[0019] Preferably, a first control plate is installed at both ends of the first clamping plate, and a second control plate is arranged corresponding to the first control plate, and a card block is installed at one end of the second control plate, and the card block is fitted inside the card slot, and the card slots are opened at equal intervals on both sides of the inner wall of the second rotating rod, so that when the first clamping plate is rotated, the relationship between the first control plate and the second control plate can be used to drive the card block to move inside the card slot, so that the card block extends into the card slot when clamping to fix the moved adjustment block, and when not in the clamping state, the card block can be detached from the inside of the card slot, thereby not affecting the movement of the adjustment block inside the through slot.

[0020] Preferably, two groups of magnets and magnets are installed on the side of the first control plate, and the magnets and magnets are staggered and have opposite magnetic properties. In addition, the first control plate and the second control plate have the same structural size, so that when the first control plate rotates with the first clamping plate, the magnetic relationship between the magnets and magnets can be used to drive the second control plate to perform telescopic activities.

[0021] Compared with the prior art, the invention has the following beneficial effects: the high-pressure hydrogen sampling device is easy to control, and completely solves the problem of difficulty and high danger in pressure control of manual switch valves, and the device can take gas from the rear end of a tank truck, before and after a compressor, before and after a hydrogen storage pipe, and before and after a hydrogenator, and is convenient for storing a high-pressure metal hose for carrying and use;

[0022] 1. A storage tank and a first rotating rod are provided, so that when the high-pressure metal hose is placed in the storage tank arranged in a spiral shape, the first rotating rod is swung from a vertical shape to a horizontal shape, and the second rotating rod with a movable shaft installed on the first rotating rod is unfolded, and the air outlet installed at one end of the high-pressure metal hose is fixed by using the first clamping plate and the second clamping plate installed on the second rotating rod, and then the first rotating rod is limited by the cooperation between the positioning pin and the second positioning hole, and because the positioning pin is arranged in a rectangular shape, the high-pressure metal hose can be stored in the housing under the cooperation between the storage tank, the first rotating rod and the second rotating rod for carrying and use;

[0023] 2. A card slot and a card block are provided, so that the position of the adjustment block on the second rotating rod can be adjusted according to the length of the high-pressure metal hose. When the air outlet needs to be clamped and fixed, the first clamping plate will rotate, and the magnetic relationship between the magnets on the two control panels and the magnets will be used to separate the card block from the card slot, and then the adjustment block can be moved inside the through slot. After the first clamping plate is loosened, it is reset under the action of the torsion spring, and then the card block can be extended into another card slot to fix the moved adjustment block, so that the adjustment can be achieved according to the position of the air outlet;

[0024] 3. A pressure regulator and a high-pressure metal hose are provided, so that the 20-45Mpa high-pressure hydrogen can be decompressed and enter the sampling bottle at a fixed value of 0.5Mpa. After decompression, the pressure is stable and easy to control, which completely solves the problem of difficult and dangerous pressure control of manual switch valves. Thin-diameter stainless steel seamless pipes are used instead of ordinary metal hoses, and the pressure resistance level is improved, and safety is more guaranteed. The high-pressure pressure regulating equipment and switch valves are semi-closed, the pressure is displayed and adjusted on the panel, the valve handle is operated on the panel, and the front of the personnel is physically isolated from the leakage source to prevent high-pressure hydrogen from harming the operator. In addition, unlike ordinary sampling devices that can only take gas at the rear end of the transport tank truck, this device can take gas from the rear end of the tank truck, before and after the compressor, before and after the hydrogen storage pipe, and before and after the hydrogenator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall front view structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the side cross-section structure of the carrier plate of the present invention;

[0027] Figure 3 This is a schematic diagram of the front cross-section structure of the positioning pin of the present invention;

[0028] Figure 4 It is a schematic diagram of the side cross-section structure of the regulating block of the present invention;

[0029] Figure 5 It is a schematic diagram of the top-sectional structure of the first splint of the present invention;

[0030] Figure 6 This is a schematic diagram of the side cross-sectional structure of the card block of the present invention;

[0031] Figure 7 This is a schematic diagram of the front cross-section structure of the first control panel of the present invention;

[0032] Figure 8 It is a schematic diagram of the top view of the high-pressure spiral tube of the present invention.

[0033] In the figure: 1. shell; 2. pressure regulator; 3. relief valve; 4. pressure gauge; 5. high-pressure spiral tube; 6. control valve; 7. bearing frame plate; 8. high-pressure metal hose; 9. storage tank; 10. first rotating rod; 1001. groove; 1002. first positioning hole; 11. second rotating rod; 12. movable block; 13. positioning pin; 14. pressure spring; 15. second positioning hole; 16. air outlet; 17. through groove; 18. adjustment block; 1801. first clamping plate; 1802. second clamping plate; 1803. torsion spring; 1804. first control board; 18041. magnet; 18042. magnet; 1805. second control board; 1806. clamping block; 1807. clamping groove; 19. protective angle. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-8 The present invention provides a technical solution: a high-pressure hydrogen sampling device, comprising a shell 1 placed on a plane, and a high-pressure spiral tube 5 is installed on the left side of the shell 1, and a control valve 6 is provided at one end of the high-pressure spiral tube 5, and the high-pressure spiral tube 5 has high pressure resistance and can be adjusted in any direction;

[0036] A pressure regulator 2 is arranged inside the lower part of the housing 1, and a high-pressure metal hose 8 is installed at the left end of the housing 1, and an air outlet 16 is arranged at one end of the high-pressure metal hose 8, and one end of the high-pressure metal hose 8 is connected with the sampling bottle when in use;

[0037] Two sets of relief valves 3 and pressure gauges 4, both of which are arranged inside the upper part of the housing 1;

[0038] Also included are:

[0039] A carrier plate 7, which is fixedly mounted on the outer side of the left end of the housing 1, and the carrier plate 7 is located outside the high-pressure metal hose 8;

[0040] A storage tank 9 is spirally disposed inside the carrier plate 7 to limit the position of the high-pressure metal hose 8 when not in use;

[0041] A first rotating rod 10, whose movable shaft is installed inside the carrier plate 7, and one end of the first rotating rod 10 is rotatably connected to a second rotating rod 11, and a through slot 17 is opened inside the second rotating rod 11;

[0042] A protective corner 19 is installed at the upper corner of the housing 1 to prevent the operator from bumping into the corner of the housing 1 and causing injury;

[0043] The connection point between the first rotating rod 10 and the second rotating rod 11 is located at the interface between the high-pressure metal hose 8 and the shell 1, and a groove 1001 is reserved in the middle of the first rotating rod 10, and a first positioning hole 1002 is opened inside the first rotating rod 10 and on the carrier plate 7; the first positioning hole 1002 opened inside the first rotating rod 10 and the first positioning hole 1002 opened on the carrier plate 7 are symmetrically arranged about the connection point between the first rotating rod 10 and the carrier plate 7, and the first positioning hole 1002 is a square structure; a movable block 12 is slidably arranged at one end of the second rotating rod 11, and a positioning pin 13 is installed at one end of the movable block 12, and a pressure spring 14 with a pushing effect is welded between the movable block 12 and the second rotating rod 11; one end of the positioning pin 13 is located inside the second positioning hole 15, and the second positioning holes 15 are distributed at equal angles about the interface between the high-pressure metal hose 8 and the shell 1, and the positioning pin 13 respectively forms a concave-convex fit with the second positioning hole 15 and the first positioning hole 1002;

[0044] Combination Figure 1-3 As shown, when the high-pressure metal hose 8 is placed in the storage tank 9, the movable block 12 is used to pull out the positioning pin 13 located inside the first positioning hole 1002, and then the first rotating rod 10 can be rotated until one end is located at the interface between the high-pressure metal hose 8 and the shell 1, and then the second rotating rod 11 is rotated on the first rotating rod 10 according to the position direction of the air outlet 16 installed at one end of the high-pressure metal hose 8. At this time, the pressure spring 14 is used to drive the positioning pin 13 to extend into the second positioning hole 15, and then one end of the rotated second rotating rod 11 can be fixed, and because the first positioning hole 1002 is a square structure, and the positioning pin 13 respectively forms a concave-convex fit with the first positioning hole 1002 and the second positioning hole 15, the positioning pin 13 will not rotate inside the second positioning hole 15, so that the first rotating rod 10 and the second rotating rod 11 will not rotate relative to each other, so that the rotated first rotating rod 10 and the second rotating rod 11 can be fixed, so that the high-pressure metal hose 8 can be limited and stored.

[0045] The high-pressure metal hose 8 is a thin-diameter stainless steel seamless tube, and the high-pressure metal hose 8 is attached to the inside of the storage tank 9. Figure 2 As shown, after using the high-pressure metal hose 8, the pressure resistance level of the device can be improved, and the safety is more guaranteed.

[0046] The through slot 17 is provided with an adjusting block 18 in a slidable manner, and a second clamping plate 1802 is fixedly installed inside the adjusting block 18, and a first clamping plate 1801 is installed on the internal bearing of the adjusting block 18, and a torsion spring 1803 is welded between the first clamping plate 1801 and the second clamping plate 1802, and the first clamping plate 1801 and the second clamping plate 1802 are both attached to the outer side of the air outlet 16; both ends of the first clamping plate 1801 are provided with a first control plate 1804, and the first control plate 1804 is provided with a second control plate 1804 correspondingly. 5, and a card block 1806 is installed at one end of the second control board 1805, and the card block 1806 is fitted inside the card slot 1807, and the card slots 1807 are evenly spaced on both sides of the inner wall of the second rotating rod 11; two groups of magnets 18041 and magnets 18042 are installed on the side of the first control board 1804, and the magnets 18041 and the magnets 18042 are staggered, and the magnetism of the magnets 18041 and the magnets 18042 are opposite, and the first control board 1804 and the second control board 1805 have the same structure and size;

[0047] Combination Figure 1-2 and Figure 4-7 As shown, when the length of the high-pressure metal hose 8 needs to be changed, that is, the length of the air outlet 16 from the interface between the high-pressure metal hose 8 and the housing 1 changes, the first clamping plate 1801 is pressed on the adjustment block 18 to cause the first clamping plate 1801 to rotate, so that the first control plate 1804 installed at both ends of the first clamping plate 1801 will rotate synchronously. When the first control plate 1804 rotates, it will rotate relative to the second control plate 1805, causing the magnets 18041 and 18042 installed on the first control plate 1804 and the second control plate 1805 to be arranged oppositely, so that under the magnetic effect of opposite attraction, it can drive The block 1806 is disengaged from the slot 1807, and the position of the adjustment block 18 can be moved until it is located on the air outlet 16. The first clamping plate 1801 is then loosened. Under the action of the torsion spring 1803, the first clamping plate 1801 will cooperate with the second clamping plate 1802 to clamp and limit the air outlet 16. At this time, the magnet 18041 and the magnet 18042 installed on the first control board 1804 and the second control board 1805 are arranged opposite to each other with the same polarity. Under the action of like-polarity repulsion, the block 1806 is driven to extend into the interior of the slot 1807, and the moved adjustment block 18 can be limited, thereby achieving adjustment according to the length of the high-pressure metal hose 8.

[0048] Working principle: When using the high pressure hydrogen sampling device, Figure 1-8As shown, close the two relief valves 3, open the control valve 6, and connect the high-pressure hydrogen from the air inlet interface (the hydrogen unloading port at the rear of the tank truck, the rear interface of the storage tank, or the front interface of the hydrogenator), and pass through the high-pressure spiral tube 5 to the pressure regulator 2. After the pressure is reduced from 20-45Mpa to 5Mpa, it enters the sampling bottle through the high-pressure metal hose 8, close the valve A at the air inlet, open the two relief valves 3, and vent the pressure in the sampling device and the sampling bottle to the same as the atmospheric pressure, and repeat the above operation five times (if higher purity is required, increase the number of charging and discharging times). Then close the inlet valve of the sampling bottle, close the control valve 6, open the two vent valves 3 to vent the hydrogen in the pipeline, dismantle and tidy up the sampling device, and realize the decompression of 20-45Mpa high-pressure hydrogen to enter the sampling bottle at a fixed value of 0.5Mpa. The pressure is stable and easy to control after decompression, which completely solves the problem of difficult and dangerous pressure control of manual switching valves. The high-pressure metal hose 8 can be limited in the storage tank 9 according to its length, and can be further fixed by the first rotating rod 10 and the second rotating rod 11 for carrying.

[0049] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure hydrogen sampling device, comprising a housing (1) placed on a plane, a high-pressure spiral tube (5) installed on the left side of the housing (1), a control valve (6) provided at one end of the high-pressure spiral tube (5), and the high-pressure spiral tube (5) has a high pressure bearing capacity and can be adjusted in any direction; A pressure regulator (2) is arranged inside the lower part of the housing (1), and a high-pressure metal hose (8) is installed at the left end of the housing (1), and an air outlet (16) is arranged at one end of the high-pressure metal hose (8), and one end of the high-pressure metal hose (8) is connected to the sampling bottle when in use; Two sets of relief valves (3) and pressure gauges (4), both of which are arranged inside the upper part of the housing (1); It is characterized in that Also included are: A carrier plate (7) fixedly mounted on the outer side of the left end of the shell (1), and the carrier plate (7) is located on the periphery of the high-pressure metal hose (8); A storage tank (9) is formed in a spiral shape and is disposed inside the carrier plate (7) to limit the position of the high-pressure metal hose (8) when not in use; A first rotating rod (10), a movable shaft of which is installed inside the carrier plate (7), and one end of the first rotating rod (10) is rotatably connected to a second rotating rod (11), and a through slot (17) is provided inside the second rotating rod (11); A protective corner (19) installed at the upper corner of the housing (1) to prevent an operator from bumping into the corner of the housing (1) and causing injury; An adjusting block (18) is slidably engaged inside the through slot (17), and a second clamping plate (1802) is fixedly installed inside the adjusting block (18), and a first clamping plate (1801) is installed on an internal bearing of the adjusting block (18), and a torsion spring (1803) is welded between the first clamping plate (1801) and the second clamping plate (1802), and the first clamping plate (1801) and the second clamping plate (1802) are both attached to the outer side of the air outlet (16); Both ends of the first clamping plate (1801) are installed with a first control plate (1804), and the first control plate (1804) is correspondingly provided with a second control plate (1805), and one end of the second control plate (1805) is installed with a clamping block (1806), and the clamping block (1806) is fitted inside the clamping slot (1807), and the clamping slots (1807) are evenly spaced on both sides of the inner wall of the second rotating rod (11); Two groups of magnets (18041) and magnets (18042) are installed on the side of the first control board (1804), and the magnets (18041) and magnets (18042) are arranged in an alternating manner, and the magnets (18041) and magnets (18042) have opposite magnetic properties, and the first control board (1804) and the second control board (1805) have the same structure and size; The first clamping plate (1801) is pressed on the regulating block (18) to cause the first control plate (1804) and the second control plate (1805) to rotate relative to each other, thereby causing the magnets (18041) and the magnets (18042) installed on the first control plate (1804) and the second control plate (1805) to be arranged oppositely, driving the clamping block (1806) to disengage from the clamping slot (1807), thereby moving the position of the regulating block (18) until it is located on the air outlet (16), and then releasing the first clamping plate (1801). A clamping plate (1801), under the action of the torsion spring (1803), the first clamping plate (1801) cooperates with the second clamping plate (1802) to clamp and limit the air outlet (16), at this time, the magnet (18041) and the magnet (18042) installed on the first control plate (1804) and the second control plate (1805) are arranged opposite to each other with the same polarity, driving the clamping block (1806) to extend into the interior of the clamping slot (1807), thereby limiting the moved adjustment block (18).

2. The high-pressure hydrogen sampling device according to claim 1, characterized in that: The connection point between the first rotating rod (10) and the second rotating rod (11) is located at the interface between the high-pressure metal hose (8) and the housing (1), and a groove (1001) is reserved in the middle of the first rotating rod (10), and a first positioning hole (1002) is provided inside the first rotating rod (10) and on the carrier plate (7).

3. The high-pressure hydrogen sampling device according to claim 2, characterized in that: The first positioning hole (1002) opened inside the first rotating rod (10) and the first positioning hole (1002) opened on the bearing frame plate (7) are symmetrically arranged about the connection point between the first rotating rod (10) and the bearing frame plate (7), and the first positioning hole (1002) is arranged in a square structure.

4. The high-pressure hydrogen sampling device according to claim 1, characterized in that: The high-pressure metal hose (8) is a thin-diameter stainless steel seamless tube, and the high-pressure metal hose (8) is fitted inside the storage tank (9).

5. The high-pressure hydrogen sampling device according to claim 1, characterized in that: A movable block (12) is slidably engaged with one end of the second rotating rod (11), a positioning pin (13) is installed at one end of the movable block (12), and a pressure spring (14) with a pushing effect is welded between the movable block (12) and the second rotating rod (11).

6. The high-pressure hydrogen sampling device according to claim 5, characterized in that: One end of the positioning pin (13) is located inside the second positioning hole (15), and the second positioning holes (15) are distributed at equal angles with respect to the interface between the high-pressure metal hose (8) and the housing (1), and the positioning pin (13) forms a concave-convex fit with the second positioning hole (15) and the first positioning hole (1002), respectively.

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