CN216408550U

CN216408550U - Hydrogen-nitrogen replacement device for high-purity hydrogen purification device

Info

Publication number: CN216408550U
Application number: CN202122710322.3U
Authority: CN
Inventors: 程峻; 徐雷; 席昌雁; 孙小平
Original assignee: Wisco Gases Co ltd
Current assignee: Wisco Gases Co ltd
Priority date: 2021-11-06
Filing date: 2021-11-06
Publication date: 2022-04-29
Anticipated expiration: 2031-11-06

Abstract

The application discloses a hydrogen-nitrogen replacement device for a high-purity hydrogen purification device, and relates to the technical field of hydrogen-nitrogen replacement, the hydrogen-nitrogen replacement device comprises a hydrogen storage box, a replacement box is arranged at the top of the hydrogen storage box, an air outlet pipe is arranged at the top of the hydrogen storage box, a connecting pipe is sleeved on the air outlet pipe, a limiting mechanism is arranged between the connecting pipe and the replacement box, an air outlet mechanism is arranged between the air outlet pipe and the connecting pipe and comprises a first U-shaped groove arranged at the port part of the air outlet pipe, a first sealing ball is arranged inside the first U-shaped groove, a second U-shaped groove is arranged in the middle of the connecting pipe, a second sealing ball is arranged inside the second U-shaped groove, a replacement pipe is arranged above the second sealing ball on the connecting pipe, a compression spring is sleeved on the air outlet pipe, and two ends of the compression spring are fixedly connected with the connecting pipe and the replacement box in sequence; the utility model can replace hydrogen and nitrogen and effectively prevent hydrogen from leaking.

Description

Hydrogen-nitrogen replacement device for high-purity hydrogen purification device

Technical Field

The application relates to the technical field of hydrogen-nitrogen replacement, in particular to a hydrogen-nitrogen replacement device for a high-purity hydrogen purification device.

Background

The high-purity hydrogen purification device used by hydrogen companies adopts a catalytic method to produce high-purity hydrogen, and the purification device adopting the catalytic method to produce the high-purity hydrogen is provided with a molecular sieve adsorber. Because hydrogen is extremely easy to explode, the air tightness of the whole system meets the requirement, and if air enters the system, the system must be strictly replaced before production can be carried out. The high-purity hydrogen purification device is started for the first time, overhauls and when air enters a system and other conditions, nitrogen is used for flushing the device, and then the nitrogen is replaced by hydrogen.

At present, when hydrogen and nitrogen are replaced, leakage is easily caused when the hydrogen is conveyed, air enters the hydrogen, and the purity of the hydrogen is not enough.

SUMMERY OF THE UTILITY MODEL

In order to solve and cause easily and reveal, can lead to the air to enter into hydrogen, make the not enough problem of hydrogen purity, this application provides the hydrogen nitrogen replacement device who is used for high-purity hydrogen purifier.

The application provides a hydrogen nitrogen replacement device for high-purity hydrogen purifier adopts following technical scheme:

a hydrogen-nitrogen substitution device for a high-purity hydrogen purification device, comprising:

the hydrogen storage tank is provided with a replacement tank at the top, an air outlet pipe is arranged at the top of the hydrogen storage tank, a connecting pipe is sleeved on the air outlet pipe, a limiting mechanism is arranged between the connecting pipe and the replacement tank, an air outlet mechanism is arranged between the air outlet pipe and the connecting pipe, the air outlet mechanism comprises a first U-shaped groove arranged at the end part of the air outlet pipe, a first sealing ball is arranged inside the first U-shaped groove, a second U-shaped groove is arranged in the middle of the connecting pipe, a second sealing ball is arranged inside the second U-shaped groove, a replacement pipe is arranged above the second sealing ball on the connecting pipe, a compression spring is sleeved on the air outlet pipe, and two ends of the compression spring are fixedly connected with the connecting pipe and the replacement tank in sequence; the utility model can improve the replacement efficiency of hydrogen and nitrogen and effectively prevent hydrogen from leaking.

Optionally, the first sealing ball and the second sealing ball are wrapped by rubber pads, the first sealing ball and the first U-shaped groove are arranged in a sealing mode, and the second sealing ball and the second U-shaped groove are arranged in a sealing mode.

Optionally, a sealing plug is arranged at the joint of the air outlet pipe and the connecting pipe, and the sealing plug is annularly arranged.

Optionally, the limiting mechanism includes a sliding groove formed in the middle of the displacement box, the connecting pipe penetrates through the displacement box along the middle of the sliding groove, a limiting block is arranged outside the connecting pipe, and the limiting block is located inside the sliding groove and connected in a sliding manner.

Optionally, the top of the connecting pipe is arranged in an inclined plane, and a rotating mechanism is arranged on one side, located on the connecting pipe, of the top of the replacement box.

Optionally, slewing mechanism is including setting up the dead lever at replacement roof portion, the middle part of dead lever is provided with the fixed gear, the dead lever is located the top of fixed gear and rotates and is connected with the movable rod, the middle part of movable rod is provided with the rotation motor, the output that rotates the motor runs through movable rod and fixedly connected with pinion, and meshes between pinion and the fixed gear to be connected, one side that the dead lever was kept away from to the movable rod is provided with the slope piece, and sliding contact between slope piece and the connecting pipe.

Optionally, one end of the displacement pipe, which is far away from the connecting pipe, penetrates through the displacement tank, and the displacement pipe has elasticity.

Optionally, a piston is arranged at one end of the inside of the hydrogen storage tank, and the piston is connected with the hydrogen storage tank in a sliding manner.

To sum up, the present application includes the following beneficial effects:

(1) in the application, the connecting pipe is pushed in a sliding contact manner by mutually matching the rotating motor, the micro gear, the movable rod, the fixed gear and the inclined block, so that the connecting pipe slides downwards on the air outlet pipe, the air pressure in the connecting pipe is increased, hydrogen can flow out of the replacement pipe, nitrogen is replaced, and the hydrogen can be continuously conveyed by continuously rotating the inclined block and being in sliding contact with the connecting pipe;

(2) in this application, carry out elastic support through compression spring to the connecting pipe, make the connecting pipe upwards slide on the outlet duct, make the inside atmospheric pressure of connecting pipe strengthen, can make the inside hydrogen of hydrogen storage box enter into the connecting pipe through the outlet duct, prevent effectively that hydrogen from taking place to reveal, guarantee the purity of hydrogen.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic sectional view of the inside of the replacement tank of the present embodiment;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 4 is an enlarged schematic structural diagram at B in fig. 2 of the present embodiment.

Description of reference numerals: 1. a hydrogen storage tank; 11. a piston; 2. replacing the box; 3. an air outlet pipe; 4. a connecting pipe; 5. a limiting mechanism; 51. a chute; 52. a limiting block; 6. an air outlet mechanism; 61. a first U-shaped groove; 62. a first sealing ball; 63. a second U-shaped groove; 64. a second sealing ball; 65. replacing the tube; 66. a compression spring; 7. a sealing plug; 8. a rotating mechanism; 81. fixing the rod; 82. fixing a gear; 83. a movable rod; 84. rotating the motor; 85. a micro gear; 86. an inclined block.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example (b):

referring to fig. 1 and 2, an embodiment of the present application discloses a hydrogen-nitrogen substitution device for a high-purity hydrogen purification device, including:

in order to store and place hydrogen, a hydrogen storage tank 1 is provided, one end inside the hydrogen storage tank 1 is provided with a piston 11, the piston 11 is connected with the hydrogen storage tank 1 in a sliding manner, hydrogen inside the hydrogen storage tank 1 is extracted, the piston 11 can slide towards the inside of the hydrogen storage tank 1 through air pressure, the air pressure inside the hydrogen storage tank 1 is kept stable, a replacement tank 2 is arranged at the top of the hydrogen storage tank 1, the replacement tank 2 is fixedly supported through the hydrogen storage tank 1, the replacement tank 2 can lead out hydrogen, in order to lead out hydrogen inside the hydrogen storage tank 1, an air outlet pipe 3 is arranged at the top of the hydrogen storage tank 1, a connecting pipe 4 is sleeved on the air outlet pipe 3, the connecting pipe 4 is slidably supported through the arranged air outlet pipe 3, the connecting pipe 4 can slide on the air outlet pipe 3 in a limiting manner, and a sealing plug 7 is arranged at the joint of the air outlet pipe 3 and the connecting pipe 4, sealing plug 7 is the annular setting, can make connecting pipe 4 can not take place gas leakage when sliding on outlet duct 3 through sealing plug 7 that sets up, prevents that the outside air from causing the pollution to hydrogen.

Please refer to fig. 3, in order to limit the connection pipe 4, the connection pipe 4 cannot rotate on the outlet pipe 3, a limiting mechanism 5 is arranged between the connection pipe 4 and the replacement box 2, the limiting mechanism 5 includes a sliding groove 51 formed in the middle of the replacement box 2, the connection pipe 4 penetrates the replacement box 2 along the middle of the sliding groove 51, the connection pipe 4 is limited by sliding through the arranged sliding groove 51, the connection pipe 4 is prevented from being deviated, in order to limit the connection pipe 4 to rotate, a limiting block 52 is arranged outside the connection pipe 4, the limiting block 52 is located in the sliding connection inside the sliding groove 51, the connection pipe 4 can be prevented from rotating through the arranged limiting block 52, and the connection pipe 4 can only slide on the outlet pipe 3.

Referring to fig. 2 and 4, in order to lead out hydrogen in the hydrogen storage tank 1 automatically and replace nitrogen, an air outlet mechanism 6 is disposed between the air outlet pipe 3 and the connecting pipe 4, the air outlet mechanism 6 includes a first U-shaped groove 61 disposed at the port of the air outlet pipe 3, a first sealing ball 62 is disposed inside the first U-shaped groove 61, a rubber pad is wrapped outside the first sealing ball 62, the first sealing ball 62 and the first U-shaped groove 61 are disposed in a sealing manner, a second U-shaped groove 63 is disposed in the middle of the connecting pipe 4, a second sealing ball 64 is disposed inside the second U-shaped groove 63, a rubber pad is wrapped outside the second sealing ball 64, and the second sealing ball 64 and the second U-shaped groove 63 are disposed in a sealing manner, so as to prevent hydrogen loss and waste of resources, a replacement pipe 65 is disposed above the second sealing ball 64 in the connecting pipe 4, and air in the hydrogen storage tank 1 can be led out through the disposed replacement pipe 65, the one end that connecting pipe 4 was kept away from to replacement pipe 65 runs through replacement case 2, and replacement pipe 65 has certain elasticity, can make replacement pipe 65 follow connecting pipe 4 and remove and carry out elastic expansion, prevent that replacement pipe 65 from breaking, the cover is equipped with compression spring 66 on the outlet duct 3, can carry out elastic support to connecting pipe 4 through the compression spring 66 that sets up, make connecting pipe 4 have and keep ascending elasticity, compression spring 66's both ends in proper order with connecting pipe 4 and replacement case 2 fixed connection.

Referring to fig. 3, the top of the connection pipe 4 is disposed in an inclined plane to facilitate the control of the connection pipe 4 sliding on the outlet pipe 3, in order to control the connection pipe 4, a rotating mechanism 8 is disposed on one side of the connection pipe 4 at the top of the replacement box 2, the rotating mechanism 8 includes a fixed rod 81 disposed at the top of the replacement box 2, the fixed rod 81 is disposed on one side of the connection pipe 4 and fixedly connected to the replacement box 2, a fixed gear 82 is disposed at the middle of the fixed rod 81, the fixed gear 82 is fixedly supported by the fixed rod 81, a movable rod 83 is rotatably connected to the fixed rod 81 above the fixed gear 82, the movable rod 83 is rotatably supported by the fixed rod 81, a rotating motor 84 is disposed at the middle of the movable rod 83, the rotating motor 84 can select different models according to actual conditions, for example, the model is selected to be DC3V-12V, the output end of the rotating motor 84 penetrates through the movable rod 83 and is fixedly connected to a micro gear 85, and the micro-gear 85 is meshed with the fixed gear 82, the output end of the rotating motor 84 drives the micro-gear 85 to rotate, so that the micro-gear 85 can rotate around the fixed gear 82, the movable rod 83 is driven to rotate around the fixed rod 81, one side of the movable rod 83, which is far away from the fixed rod 81, is provided with an inclined block 86, the inclined block 86 is in sliding contact with the connecting pipe 4, the movable rod 83 drives the inclined block 86 to synchronously move, the inclined block 86 can be in repeated sliding contact with the connecting pipe 4, and the connecting pipe 4 can slide downwards on the air outlet pipe 3.

The implementation principle of the hydrogen-nitrogen replacement device for the high-purity hydrogen purification device in the embodiment of the application is as follows:

the rotating motor 84 is started, the output end of the rotating motor 84 drives the micro gear 85 to rotate, the micro gear 85 can drive the movable rod 83 to rotate around the fixed gear 82, the movable rod 83 drives the inclined block 86 to synchronously move, the inclined block 86 can make sliding contact with the connecting pipe 4, the connecting pipe 4 can slide downwards on the air outlet pipe 3, and the hydrogen in the connecting pipe 4 can push the second sealing ball 64 to be separated from the second U-shaped groove 63 by increasing the air pressure in the connecting pipe 4, so that the hydrogen can flow out of the replacement pipe 65 to replace the nitrogen;

when the inclined block 86 is separated from the connecting pipe 4, the connecting pipe 4 is elastically supported by the compression spring 66, so that the connecting pipe 4 slides upwards on the gas outlet pipe 3, the first sealing ball 62 is separated from the first U-shaped groove 61 by increasing the air pressure in the connecting pipe 4, hydrogen in the hydrogen storage tank 1 can enter the connecting pipe 4 through the gas outlet pipe 3, and the inclined block 86 continuously rotates and is in sliding contact with the connecting pipe 4, so that the hydrogen can be continuously conveyed and replaced; and effectively prevent hydrogen from leaking.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A hydrogen nitrogen substitution device for a high-purity hydrogen purification device, characterized by comprising:

the hydrogen storage tank (1), a replacement box (2) is arranged at the top of the hydrogen storage tank (1), an air outlet pipe (3) is arranged at the top of the hydrogen storage tank (1), a connecting pipe (4) is sleeved on the air outlet pipe (3), a limiting mechanism (5) is arranged between the connecting pipe (4) and the replacement box (2), an air outlet mechanism (6) is arranged between the air outlet pipe (3) and the connecting pipe (4), the air outlet mechanism (6) comprises a first U-shaped groove (61) which is arranged at the port of the air outlet pipe (3), a first sealing ball (62) is arranged inside the first U-shaped groove (61), a second U-shaped groove (63) is arranged in the middle of the connecting pipe (4), a second sealing ball (64) is arranged inside the second U-shaped groove (63), a replacement pipe (65) is arranged above the second sealing ball (64) of the connecting pipe (4), the gas outlet pipe (3) is sleeved with a compression spring (66), and two ends of the compression spring (66) are fixedly connected with the connecting pipe (4) and the replacement box (2) in sequence.

2. The hydrogen-nitrogen substitution device for a high-purity hydrogen purification device according to claim 1, characterized in that: the outer portions of the first sealing ball (62) and the second sealing ball (64) are wrapped by rubber pads, the first sealing ball (62) and the first U-shaped groove (61) are arranged in a sealing mode, and the second sealing ball (64) and the second U-shaped groove (63) are arranged in a sealing mode.

3. The hydrogen-nitrogen substitution device for a high-purity hydrogen purification device according to claim 1, characterized in that: and a sealing plug (7) is arranged at the joint of the air outlet pipe (3) and the connecting pipe (4), and the sealing plug (7) is arranged annularly.

4. The hydrogen-nitrogen substitution device for a high-purity hydrogen purification device according to claim 1, characterized in that: the limiting mechanism (5) comprises a sliding groove (51) formed in the middle of the replacement box (2), the connecting pipe (4) penetrates through the replacement box (2) along the middle of the sliding groove (51), a limiting block (52) is arranged outside the connecting pipe (4), and the limiting block (52) is located in the sliding connection of the sliding groove (51).

5. The hydrogen-nitrogen substitution device for a high-purity hydrogen purification device according to claim 1, characterized in that: the top of connecting pipe (4) is the inclined plane setting, the top of replacement case (2) is located one side of connecting pipe (4) and is provided with slewing mechanism (8).

6. The hydrogen-nitrogen substitution device for a high-purity hydrogen purification device according to claim 5, characterized in that: slewing mechanism (8) are including setting up dead lever (81) at replacement case (2) top, the middle part of dead lever (81) is provided with fixed gear (82), dead lever (81) are located the top of fixed gear (82) and rotate and are connected with movable rod (83), the middle part of movable rod (83) is provided with rotates motor (84), the output that rotates motor (84) runs through movable rod (83) and fixedly connected with micro-gear (85), and meshes between micro-gear (85) and fixed gear (82) and be connected, one side that dead lever (81) were kept away from in movable rod (83) is provided with slope piece (86), and sliding contact between slope piece (86) and connecting pipe (4).

7. The hydrogen-nitrogen substitution device for a high-purity hydrogen purification device according to claim 1, characterized in that: one end of the replacement pipe (65), which is far away from the connecting pipe (4), penetrates through the replacement box (2), and the replacement pipe (65) has elasticity.

8. The hydrogen-nitrogen substitution device for a high-purity hydrogen purification device according to claim 1, characterized in that: a piston (11) is arranged at one end of the interior of the hydrogen storage tank (1), and the piston (11) is connected with the hydrogen storage tank (1) in a sliding mode.