CN113350961B

CN113350961B - Hydrogen edulcoration device based on hydrogenation station

Info

Publication number: CN113350961B
Application number: CN202110669639.9A
Authority: CN
Inventors: 彭旭; 李刚; 曾广彬; 王成林; 郭玉平
Original assignee: Shenzhen Guoqing New Energy Technology Co ltd
Current assignee: Shenzhen Guoqing New Energy Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-09-13
Anticipated expiration: 2041-06-17
Also published as: CN113350961A

Abstract

The invention provides a hydrogen impurity removal device based on a hydrogenation station. Hydrogen edulcoration device based on hydrogen station includes outer container, filtration jar, blast pipe and controller, outer container inner wall symmetry is fixed with the filtration jar, it is connected with the blast pipe to filter tank deck portion, install the controller between the filtration jar, a serial communication port, filter jar inside top and install the purification device, filter the upper portion between the jar and install the pressure regulating device, filter the bottom of jar and install the auxiliary row device, filter the lower part between the jar and install air feeder. The two filter tanks are matched with the gas supply device to alternately supply gas, so that the work of the purification device in one filter tank is guaranteed, the purification device in the other filter tank is repaired, the uninterrupted purification processing of hydrogen is completed, the high efficiency of the work is guaranteed, the equipment structure is simple, the arrangement of the two groups of working parts is convenient for the later-stage non-stop maintenance, and the maintenance cost is reduced.

Description

Hydrogen edulcoration device based on hydrogenation station

Technical Field

The invention relates to the field of hydrogen purification, in particular to a hydrogen impurity removal device based on a hydrogen station.

Background

The core components of the fuel cell have extremely high requirements on the content of impurities in a hydrogen source, and the use performance and the service life of the fuel cell are seriously affected by impurity gases such as H2S, CO2, N2 and the like in the hydrogen source, for example, sulfur-containing impurities can poison and irreversible a fuel cell catalyst and a membrane electrode, so that the service life of the cell is greatly reduced, and the fuel cell is one of the problems which are difficult to solve.

At present, hydrogen used by a fuel cell hydrogen filling station is mainly industrial high-purity hydrogen transported by a long-tube trailer, the impurity content in the hydrogen is kept constant after multiple process conversion processing, especially H2S has influence on the use of the fuel hydrogen, further cleaning is needed to reduce the H2S content, the hydrogen purity is improved, but the hydrogen purification of the hydrogen filling station is not mature, and the maintenance cost is higher.

Therefore, a new hydrogen impurity removal device based on a hydrogen refueling station is needed to solve the technical problems.

Disclosure of Invention

In order to solve the technical problem, the invention provides a hydrogen impurity removal device based on a hydrogenation station.

The invention provides a hydrogen impurity removal device based on a hydrogenation station, which comprises: outer container, filtration jar, blast pipe and controller, outer container inner wall symmetry is fixed with the filtration jar, it is connected with the blast pipe to filter tank deck portion, filter and install the controller between the jar, filter the inside top of jar and install the purification device, filter upper portion between the jar and install the pressure regulating device, filter the bottom of jar and install the auxiliary row device, filter the lower part between the jar and install air feeder, equal and the controller electric connection of pressure regulating device, auxiliary row device, air feeder and purification device.

Preferably, the auxiliary discharging device comprises an electric push rod, a connecting plate, a guide rod, a piston block, a pressure detector, a second electromagnetic valve, an air inlet channel, an opening and a hose, the piston block is installed in the filter tank in a matched mode, the electric push rod is installed on the outer wall of the filter tank, the connecting plate is fixed to the telescopic end of the electric push rod, the guide rod is fixed to the surface of the connecting plate, the guide rod penetrates into the filter tank and is fixedly connected with the piston block, the air inlet channel is formed in the piston block, the second electromagnetic valve is installed at the middle of the air inlet channel, the pressure detector is installed at the top of the piston block, the opening is formed in the bottom of the filter tank, and the hose is installed at the bottom of the air inlet channel.

Preferably, the edge of the piston block is in soft sealing contact with the inner wall of the filter tank through a rubber layer, and the middle of the top surface of the piston block is provided with a broken groove.

Preferably, the inner wall of the port is symmetrically and rotatably provided with guide wheels, and the hose passes through the guide wheels.

Preferably, air feeder includes base block, gas-distributing pipe, circle chamber, quadrant, is responsible for and rotates the motor, the base block is fixed at the filter tank outer wall, the inside circle chamber of having seted up of base block, and the rotation of circle intracavity installs quadrant, the pivot end connection of quadrant installs the rotation motor, circle chamber bilateral symmetry is connected with the gas-distributing pipe, the hose is connected with the gas-distributing pipe, base block bottom central point puts and is connected with the person in charge, and is responsible for and be connected with the circle chamber.

Preferably, the purification device includes compound activated carbon molecular sieve, jack-post, transmission chamber, two-way lead screw, driving motor, magnet piece, handle, magnet piece, caulking groove and draw-in groove, the jack-post rotates with the filter tank to be connected, and jack-post one end is connected and is installed driving motor, the inside transmission chamber of having seted up of jack-post, and the transmission intracavity rotates and installs two-way lead screw, two-way lead screw one end is fixed with the handle, transmission intracavity symmetry is provided with the magnet piece, and magnet piece and two-way lead screw threaded connection, four draw-in grooves have been seted up to jack-post edge symmetry, and the caulking groove with transmission chamber intercommunication is seted up to draw-in groove internal symmetry, it has compound activated carbon molecular sieve to peg-in the draw-in groove, compound activated carbon molecular sieve tip symmetry is fixed with the magnet piece, and magnet piece magnetism are connected.

Preferably, the end of the composite activated carbon molecular sieve is provided with a telescopic groove, a telescopic plate is inserted in the telescopic groove, a telescopic spring is fixed between the telescopic plate and the inner wall of the telescopic groove, the inner wall of the filter tank is provided with a positioning groove, and the positioning groove and the end of the telescopic plate are in a matched curved surface shape.

Preferably, the pressure regulating device includes air pump, Y-pipe, pipe and first solenoid valve, install the air pump between the filter tank, the exhaust end of air pump is connected with the pipe, and the inlet end of air pump is connected with the Y-pipe, the Y-pipe corresponds with the filter tank respectively and is connected, first solenoid valve is all installed with the junction of filter tank to the Y-pipe.

Compared with the prior art, the hydrogen impurity removal device based on the hydrogen station has the following beneficial effects:

1. the two filter tanks are matched with the gas supply device for alternate gas supply, so that the work of the purification device in one filter tank is guaranteed, the purification device in the other filter tank is repaired, the uninterrupted purification processing of hydrogen is completed, the high efficiency of the work is guaranteed, the equipment structure is simple, the arrangement of two groups of working parts is convenient for later-stage non-stop maintenance, and the maintenance cost is reduced;

2. the invention adopts the composite activated carbon molecular sieve distributed in a cross way, so that two groups of adsorption surfaces can work alternatively, and the maintenance period of the equipment is greatly prolonged;

3. the composite activated carbon molecular sieve is installed and fixed in a magnetic suction mode, so that the composite activated carbon molecular sieve is detached and replaced by driving the magnetic suction component to be staggered, and the maintenance difficulty is greatly reduced.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a schematic structural diagram of an auxiliary row device according to the present invention;

FIG. 3 is a schematic view of a gas supply device according to the present invention;

FIG. 4 is a second schematic view of the gas supply device according to the present invention;

FIG. 5 is a schematic structural diagram of a purification apparatus according to the present invention;

fig. 6 is a second schematic structural diagram of the purification apparatus provided in the present invention.

Reference numbers in the figures: 1. an outer box; 2. a filter tank; 3. an exhaust pipe; 4. a pressure regulating device; 41. an air pump; 42. a Y-pipe; 43. a conduit; 44. a first solenoid valve; 5. a controller; 6. an auxiliary discharge device; 60. a guide wheel; 61. an electric push rod; 62. connecting plates; 63. a guide bar; 64. a piston block; 65. a pressure detector; 66. a second solenoid valve; 67. an air inlet channel; 68. a port; 69. a hose; 610. breaking the groove; 7. a gas supply device; 71. a base block; 72. a gas distributing pipe; 73. a circular cavity; 74. a sector block; 75. a main pipe; 76. rotating the motor; 8. a purification device; 80. a composite activated carbon molecular sieve; 81. a jack post; 82. a transmission cavity; 83. a bidirectional screw rod; 84. a drive motor; 85. a magnet block; 86. a handle; 87. a magnet piece; 88. caulking grooves; 89. a card slot; 810. a telescopic groove; 811. a tension spring; 812. a retractable plate; 813. and (6) positioning a groove.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6 in combination, wherein fig. 1 is a schematic diagram of an overall structure provided by the present invention; FIG. 2 is a schematic structural diagram of an auxiliary row device according to the present invention; FIG. 3 is a schematic view of a gas supply device according to the present invention; FIG. 4 is a second schematic view of the gas supply device according to the present invention; FIG. 5 is a schematic structural diagram of a purification apparatus according to the present invention; fig. 6 is a second schematic structural diagram of the purification apparatus provided in the present invention. The method comprises the following steps: outer box 1, filter tank 2, blast pipe 3 and controller 5.

In the specific implementation in-process, as shown in fig. 1, 1 inner wall symmetry of outer container is fixed with filter tank 2, filter tank 2 top is connected with blast pipe 3, install controller 5 between filter tank 2, filter tank 2 inside top and install purification device 8, filter tank 2 between the upper portion install pressure regulating device 4, filter tank 2's bottom is installed and is assisted row device 6, filter tank 2 between the lower part install air feeder 7, pressure regulating device 4, assist row device 6, air feeder 7 and purification device 8 all with 5 electric connection of controller.

Hydrogen is selectively led into one of the filter tanks 2 through the gas supply device 7, hydrogen is continuously supplied to enable the outer tank 1 to form a high-pressure state, impurities in the hydrogen are removed through the purification device 8, the purified hydrogen is discharged through the exhaust pipe 3, the auxiliary discharge device 6 is opened to discharge the hydrogen in the filter tank 2 to the maximum extent when the purification device 8 needs to be maintained, the purification device 8 releases the filtered gas through releasing pressure, the gas released by the purification device 8 is intensively led out through the pressure regulating device 4, then the purification device 8 is opened to perform transposition work, meanwhile, the hydrogen is converted into the other filter tank 2 through the gas supply device 7 to perform hydrogen impurity removal work, continuous and cyclic work is realized, and continuous hydrogen purification processing is ensured.

As shown in fig. 2, auxiliary discharging device 6 includes electric putter 61, even board 62, guide arm 63, piston block 64, pressure detector 65, second solenoid valve 66, intake duct 67, opening 68 and hose 69, filter 2 inside cooperation and install piston block 64, electric putter 61 is installed to the outer wall of filter tank 2, and electric putter 61's telescopic end is fixed with even board 62, even board 62 fixed surface has the guide arm 63, and guide arm 63 penetrates in filter tank 2 with piston block 64 fixed connection, piston block 64 is inside to have seted up intake duct 67, and the mid-mounting of intake duct 67 has second solenoid valve 66, pressure detector 65 is installed at piston block 64 top, filter tank 2 bottom has seted up the opening 68, intake duct 67 bottom is connected and is installed hose 69.

The hydrogen is guided into the interior of the filter tank 2 through the hose 69, the air inlet passage 67 and the second solenoid valve 66, the air pressure on the inner wall of the filter tank 2 is detected through the pressure detector 65, the electric push rod 61 is opened to contract when exhausting air, and the piston block 64 is moved upwards through the pushing of the connecting plate 62 and the guide rod 63 to discharge the hydrogen under normal pressure to the maximum extent.

In addition, piston block 64 edge passes through the soft sealing contact of rubber layer with filter tank 2 inner wall, piston block 64 top surface middle part has seted up disconnected groove 610, and the seting up of disconnected groove 610 is used for giving way to purification device 8, makes piston block 64 furthest's upwards removal exhaust hydrogen.

In addition, the guide wheels 60 are symmetrically and rotatably arranged on the inner wall of the through hole 68, the hose 69 passes through the guide wheels 60, and the guide wheels 60 are arranged, so that the hose 69 has small friction force when following the piston block 64 to ascend and descend, and the guide motion is stable.

As shown in fig. 3 and 4, the gas supply device 7 includes a base block 71, a gas distribution pipe 72, a circular cavity 73, a fan-shaped block 74, a main pipe 75 and a rotating motor 76, the base block 71 is fixed on the outer wall of the filter tank 2, the circular cavity 73 is arranged inside the base block 71, the fan-shaped block 74 is installed in the circular cavity 73 in a rotating manner, the rotating motor 76 is installed at the end part of the rotating shaft of the fan-shaped block 74, the gas distribution pipe 72 is symmetrically connected to two sides of the circular cavity 73, the hose 69 is connected with the gas distribution pipe 72, the main pipe 75 is connected to the center position of the bottom of the base block 71, and the main pipe 75 is connected with the circular cavity 73.

The gas supply device 7 is used for selectively supplying hydrogen to a single filter tank 2, the two gas distribution pipes 72 are connected with the two hoses 69, the rotating motor 76 is started to drive the fan-shaped block 74 to rotate, one gas distribution pipe 72 is selectively blocked, the other gas distribution pipe 72 is opened, hydrogen is introduced into the circular cavity 73 through the main pipe 75, then is introduced into the opened gas distribution pipe 72 and is introduced into the corresponding filter tank 2 through the hoses 69, and therefore the device is ensured to filter and purify the hydrogen not intermittently.

As shown in fig. 5, the purification device 8 includes a composite activated carbon molecular sieve 80, a shaft column 81, a transmission cavity 82, a bidirectional screw rod 83, a driving motor 84, a magnet block 85, a handle 86, a magnet piece 87, a caulking groove 88 and a clamping groove 89, the shaft column 81 is rotatably connected with the filter tank 2, one end of the shaft column 81 is connected with the driving motor 84, the transmission cavity 82 is arranged inside the shaft column 81, the bidirectional screw rod 83 is rotatably arranged in the transmission cavity 82, one end of the bidirectional screw rod 83 is fixed with the handle 86, the magnet block 85 is symmetrically arranged in the transmission cavity 82, the magnet block 85 is in threaded connection with the bidirectional screw rod 83, four clamping grooves 89 are symmetrically arranged at the edge of the shaft column 81, the caulking groove 88 communicated with the transmission cavity 82 is symmetrically arranged in the clamping groove 89, the composite activated carbon molecular sieve 80 is inserted in the clamping groove 89, the magnet piece 87 is symmetrically fixed at the end of the composite activated carbon molecular sieve 80, and the magnet piece 87 is magnetically connected to the magnet block 85.

Four composite activated carbon molecular sieves 80 evenly set up, make the transmission chamber 82 of parallel position carry out the shutoff with the cross section of filter tank 2 and be used for the absorption purification to hydrogen, it is ninety degrees rotatory through driving motor 84 drive axle column 81, make composite activated carbon molecular sieve 80 transposition work, four composite activated carbon molecular sieves 80 work in turn greatly prolongs the maintenance cycle, and composite activated carbon molecular sieve 80 makes and adsorbs through magnet piece 87 and magnet piece 85 and carries out fixed mounting, when changing composite activated carbon molecular sieve 80, rotate two-way lead screw 83 through handle 86 and make magnet piece 85 gather together to the centre, thereby make magnet piece 87 and magnet piece 85 dislocation, conveniently extract the change from draw-in groove 89 with composite activated carbon molecular sieve 80, simplify the later maintenance degree of difficulty.

As shown in fig. 6, an expansion groove 810 is formed at an end of the composite activated carbon molecular sieve 80, an expansion plate 812 is inserted in the expansion groove 810, an expansion spring 811 is fixed between the expansion plate 812 and an inner wall of the expansion groove 810, a positioning groove 813 is formed in an inner wall of the filter tank 2, and the positioning groove 813 and the end of the expansion plate 812 are in a curved surface shape.

Through the sliding insertion of the expansion plate 812 and the expansion groove 810, the expansion plate 812 and the positioning groove 813 are clamped by the elasticity of the expansion spring 811, so that the composite activated carbon molecular sieve 80 and the filter tank 2 are sealed, and the adsorption and purification precision of hydrogen is improved.

As shown in fig. 1, the pressure regulating device 4 includes an air pump 41, a Y-pipe 42, a conduit 43 and a first electromagnetic valve 44, the air pump 41 is installed between the filter tanks 2, the exhaust end of the air pump 41 is connected with the conduit 43, and the inlet end of the air pump 41 is connected with the Y-pipe 42, the Y-pipe 42 is respectively connected with the filter tanks 2 correspondingly, and the first electromagnetic valve 44 is installed at the connecting part of the Y-pipe 42 and the filter tanks 2.

The exhaust port of one of the filter tanks 2 is selectively opened by the first solenoid valve 44, the impurity gas in the corresponding filter tank 2 is pumped out by the air pump 41, and the gas is exhausted through the conduit 43 for centralized processing.

The working principle of the hydrogen impurity removal device based on the hydrogen station provided by the invention is as follows: hydrogen is selectively led into one of the filter tanks 2 through the gas supply device 7 and is continuously supplied to enable the outer tank 1 to be in a high-pressure state, impurities in the hydrogen are removed through the purification device 8, the purified hydrogen is discharged through the exhaust pipe 3, the auxiliary discharge device 6 is opened to discharge the hydrogen in the filter tanks 2 to the maximum extent when the purification device 8 needs to be maintained, the purification device 8 releases the filtered gas through releasing pressure, the gas released by the purification device 8 is intensively discharged through the pressure regulating device 4, then the purification device 8 is opened to perform transposition work, meanwhile, the hydrogen is converted into the other filter tank 2 through the gas supply device 7 to perform hydrogen impurity removal work, continuous and cyclic work is achieved, and continuous hydrogen purification processing is guaranteed.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A hydrogen edulcoration device based on hydrogenation station includes: the device comprises an outer box (1), filtering tanks (2), an exhaust pipe (3) and a controller (5), wherein the filtering tanks (2) are symmetrically fixed on the inner wall of the outer box (1), the exhaust pipe (3) is connected to the tops of the filtering tanks (2), and the controller (5) is installed between the filtering tanks (2), and is characterized in that a purification device (8) is installed at the top end inside the filtering tanks (2), a pressure regulating device (4) is installed on the upper portion between the filtering tanks (2), an auxiliary discharge device (6) is installed at the bottom of the filtering tanks (2), a gas supply device (7) is installed on the lower portion between the filtering tanks (2), and the pressure regulating device (4), the auxiliary discharge device (6), the gas supply device (7) and the purification device (8) are all electrically connected with the controller (5);

the auxiliary discharging device (6) comprises an electric push rod (61), a connecting plate (62), a guide rod (63), a piston block (64), a pressure detector (65), a second electromagnetic valve (66), an air inlet channel (67), an opening (68) and a hose (69), the piston block (64) is installed inside the filtering tank (2) in a matched mode, the electric push rod (61) is installed on the outer wall of the filtering tank (2), the connecting plate (62) is fixed to the telescopic end of the electric push rod (61), the guide rod (63) is fixed to the surface of the connecting plate (62), the guide rod (63) penetrates into the filtering tank (2) and is fixedly connected with the piston block (64), the air inlet channel (67) is formed inside the piston block (64), the second electromagnetic valve (66) is installed in the middle of the air inlet channel (67), the pressure detector (65) is installed at the top of the piston block (64), the opening (68) is formed in the bottom of the filtering tank (2), the bottom of the air inlet (67) is connected with a hose (69);

the purification device (8) comprises a composite activated carbon molecular sieve (80), an axial column (81), a transmission cavity (82), a bidirectional screw rod (83), a driving motor (84), a magnet block (85), a handle (86), a magnet sheet (87), a caulking groove (88) and a clamping groove (89), wherein the axial column (81) is rotatably connected with the filter tank (2), one end of the axial column (81) is connected with the driving motor (84), the transmission cavity (82) is arranged inside the axial column (81), the bidirectional screw rod (83) is rotatably arranged in the transmission cavity (82), one end of the bidirectional screw rod (83) is fixed with the handle (86), the magnet block (85) is symmetrically arranged in the transmission cavity (82), the magnet block (85) is in threaded connection with the bidirectional screw rod (83), the edge of the axial column (81) is symmetrically provided with four clamping grooves (89), and the caulking groove (88) communicated with the transmission cavity (82) is symmetrically arranged in the clamping groove (89), the composite activated carbon molecular sieve (80) is inserted into the clamping groove (89), the end parts of the composite activated carbon molecular sieve (80) are symmetrically fixed with magnet pieces (87), and the magnet pieces (87) are magnetically connected with the magnet blocks (85);

expansion groove (810) have been seted up to compound activated carbon molecular sieve (80) tip, expansion plate (812) have been pegged graft in expansion groove (810), and are fixed with expanding spring (811) between expansion plate (812) and expansion groove (810) inner wall, constant head tank (813) have been seted up to filtration jar (2) inner wall, and constant head tank (813) and expansion plate (812) tip are the complex curved surface form.

2. The hydrogen impurity removing device based on the hydrogenation station is characterized in that the edge of the piston block (64) is in soft sealing contact with the inner wall of the filter tank (2) through a rubber layer, and the middle of the top surface of the piston block (64) is provided with a broken groove (610).

3. The hydrogen impurity removal device based on the hydrogen filling station as claimed in claim 2, wherein the inner wall of the through port (68) is symmetrically and rotatably provided with guide wheels (60), and the hose (69) penetrates between the guide wheels (60).

4. The hydrogen edulcoration device based on hydrogenation station of claim 3, characterized in that, gas supply installation (7) include base block (71), gas-distributing pipe (72), circle chamber (73), segment (74), be responsible for (75) and rotate motor (76), base block (71) are fixed at filter tank (2) outer wall, circle chamber (73) have been seted up to base block (71) inside, and circle chamber (73) internal rotation installs segment (74), the pivot end connection of segment (74) installs rotation motor (76), circle chamber (73) bilateral symmetry is connected with gas-distributing pipe (72), hose (69) are connected with gas-distributing pipe (72), base block (71) bottom central point puts and is connected with and is responsible for (75), and is responsible for (75) and is connected with circle chamber (73).

5. The hydrogen edulcoration device based on hydrogenation station of claim 1, characterized in that, pressure regulating device (4) include air pump (41), Y-tube (42), pipe (43) and first solenoid valve (44), install air pump (41) between filter tank (2), the exhaust end of air pump (41) is connected with pipe (43), and the inlet end of air pump (41) is connected with Y-tube (42), Y-tube (42) correspond with filter tank (2) respectively and are connected, first solenoid valve (44) are all installed with the junction of filter tank (2) to Y-tube (42).