CN218188796U

CN218188796U - Purification equipment for preparing hydrogen from coke oven gas

Info

Publication number: CN218188796U
Application number: CN202222138328.2U
Authority: CN
Inventors: 王钰宁; 宋欣欣; 曾颖
Original assignee: Qitaihe Baililang New Energy Co ltd
Current assignee: Qitaihe Baililang New Energy Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-01-03
Anticipated expiration: 2032-08-15

Abstract

The utility model belongs to the technical field of hydrogen purification equipment, and particularly discloses purification equipment for preparing hydrogen from coke oven gas, which comprises a base, a dust filter box and two adsorption boxes; one side of the dust filter box is communicated with an air inlet pipe, a filter screen plate is arranged in the dust filter box, a fan is arranged at the top of the dust filter box, the air inlet end of the fan is communicated with the dust filter box through a first connecting pipe, the air outlet end of the fan is communicated with a second connecting pipe, the bottom of the second connecting pipe is communicated with two air guide pipes, the bottom ends of the two air guide pipes are respectively communicated with the two adsorption boxes, and first valves are arranged on the two air guide pipes; equal block has the framework in two adsorption tanks, and the interval is provided with a plurality of layers of molecular sieve in the framework, and the front side of adsorption tank is opened and is equipped with and gets the mouth of putting, gets the mouth internalization and is provided with the closure plate, and the rigid coupling has the fixed block on the closure plate, be provided with on the adsorption tank and be used for carrying out the mounting of being connected with the fixed block, one side bottom of adsorption tank is provided with the blast pipe.

Description

Purification equipment for preparing hydrogen from coke oven gas

Technical Field

The utility model relates to a hydrogen purification equipment technical field specifically is a coke oven gas prepares purification equipment for hydrogen.

Background

The coke oven gas is combustible gas which is a byproduct of high-temperature carbonization of coal in a coke oven. Generally, each ton of dry coal can produce a byproduct of 300-350 standard square coke oven gas, which comprises the main components of hydrogen (55-60%), methane (23-27%), and a small amount of carbon monoxide, light hydrocarbon, naphthalene, tar, carbon dioxide, hydrogen sulfide, oxygen and nitrogen. The heat value of the coke oven gas can reach 17-19MJ/Nm < 3 >, and the coke oven gas is usually used as fuel of high-temperature industrial furnaces and urban gas, and a few projects are used for producing synthetic ammonia. In these conventional uses of coke oven gas, hydrogen resources are regarded as common fuels and do not fully realize their value. If the hydrogen can be separated and purified by an effective separation process to prepare the hydrogen for the fuel cell, the value can be improved by 5 to 10 times. In conclusion, the coke oven gas is a potential raw material for producing hydrogen for fuel cells on a large scale.

Hydrogen prepared by coke oven gas often carries with impurities such as partial water vapor, dust, oxygen, nitrogen, carbon dioxide and the like, and in order to improve the purity and quality of the hydrogen, the hydrogen needs to be dehydrated and purified, in the existing purification equipment for hydrogen, for example, the utility model patent with the patent application number of CN202123215609.5, a hydrogen purification device for hydrogen production is provided, the hydrogen is purified by a molecular sieve membrane and the like, but after one end of purification, the molecular sieve membrane needs to be regenerated at high temperature, and when the hydrogen is regenerated at high temperature, the purification equipment cannot be continuously purified, so that the hydrogen purification efficiency is influenced; in addition, the molecular sieve membrane is fixed mounting in utility model patent with application number CN202123215609.5, and inconvenient dismantlement is carried out, and then can further influence hydrogen purification efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coke oven gas prepares purification equipment for hydrogen to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a purification device for preparing hydrogen from coke oven gas comprises a base, a dust filter box and two adsorption boxes; the dust filter box and the two adsorption boxes are fixedly arranged on the upper surface of the base, one side of the dust filter box is communicated with an air inlet pipe, a filter screen plate is arranged in the dust filter box, a fan is fixedly arranged at the top of the dust filter box, the air inlet end of the fan is communicated with the dust filter box through a first connecting pipe, the air outlet end of the fan is communicated with a second connecting pipe, the bottom of the second connecting pipe is communicated with two air guide pipes, the bottom ends of the two air guide pipes are respectively communicated with the two adsorption boxes, and first valves are arranged on the two air guide pipes; two equal block has the framework in the adsorption box, the interval is provided with a plurality of layers of molecule sieve in the framework, the front side of adsorption box is opened and is equipped with and is used for getting the frame and take out gets the mouth, it is provided with the closure plate to get the internalization of putting, the rubber layer has been laid to the week side of closure plate, the rigid coupling has the fixed block on the closure plate, be provided with on the adsorption box and be used for carrying out the mounting of being connected with the fixed block, one side bottom of adsorption box is provided with the blast pipe.

Preferably, the bottom of the dust filter box is provided with a dust exhaust pipe, and the dust exhaust pipe is provided with a second valve.

Preferably, an electric telescopic rod is fixedly installed on the outer wall of one side of the dust filter box, a cleaning brush is fixedly connected with the movable end of the electric telescopic rod inserted into the dust filter box, and the top of a sponge layer of the cleaning brush is movably attached to the bottom of the filter screen plate.

Preferably, the two inner walls of the two sides of the adsorption box are symmetrically and fixedly connected with two pairs of limiting strips, and the space formed between the two pairs of limiting strips is matched with the frame body.

Preferably, the plugging plate is matched with the taking and placing port, and the rubber layer paved on the peripheral side of the plugging plate is in sliding connection with the inner wall of the taking and placing port.

Preferably, the fixing piece comprises an internal thread sleeve, the internal thread sleeve is fixedly connected with the outer wall of the adsorption box, a T-shaped screw rod penetrates through the internal thread sleeve in a spiral mode, and the head end of the T-shaped screw rod is in threaded connection with a threaded hole formed in the fixing block.

Preferably, the frame body is communicated front and back and up and down, and the frame body is correspondingly arranged with the taking and placing opening and is matched with the taking and placing opening.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model can filter dust in the hydrogen gas and improve the purity of the hydrogen gas by arranging the dust filter screen plate; through the cooperation use of electric telescopic handle, brush cleaner etc. can clear up dust filter screen board, avoid the dust to make the filtration pore of filtering screen board block up, the difficult efficiency that passes through that influences hydrogen.

2. The utility model discloses a set up two adsorption tanks, and two adsorption tanks adsorb in turn, can continue to carry out hydrogen purification work when carrying out high temperature regeneration to the molecular sieve, and then can improve hydrogen purification efficiency.

3. The utility model discloses a cooperation of shutoff board, fixed block, T type screw rod, thread bush etc. is used, is convenient for seal getting putting the mouth, and easy operation, and the dismouting of being convenient for, and then conveniently takes out the block framework in the adsorption tank to the convenient molecular sieve to in the framework carries out high temperature regeneration, has guaranteed the adsorption effect of molecular sieve, and then can improve the purification effect and the efficiency of hydrogen.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the frame body of the present invention;

fig. 3 is a schematic structural view of the plugging plate of the present invention.

In the figure: 1. a base; 2. a dust filter box; 3. an adsorption tank; 4. an air inlet pipe; 5. filtering the screen plate; 6. a fan; 7. a first connecting pipe; 8. a second connecting pipe; 9. an air duct; 10. a first valve; 11. a frame body; 12. a molecular sieve plate; 13. a rubber layer; 14. a fixed block; 15. a dust exhaust pipe; 16. a second valve; 17. an electric telescopic rod; 18. cleaning with a brush; 19. a limiting strip; 20. a threaded sleeve; 21. a T-shaped screw; 22. a threaded hole; 23. an exhaust pipe; 24. a plugging plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a purification device for preparing hydrogen from coke oven gas comprises a base 1, a dust filter box 2 and two adsorption boxes 3; the dust filter box 2 and the two adsorption boxes 3 are fixedly mounted on the upper surface of the base 1, one side of the dust filter box 2 is communicated with an air inlet pipe 4, a filter screen plate 5 is arranged inside the dust filter box 2, a fan 6 is fixedly mounted at the top of the dust filter box 2, the air inlet end of the fan 6 is communicated with the dust filter box 2 through a first connecting pipe 7, the air outlet end of the fan 6 is communicated with a second connecting pipe 8, the bottom of the second connecting pipe 8 is communicated with two air guide pipes 9, the bottom ends of the two air guide pipes 9 are respectively communicated with the two adsorption boxes 3, the two air guide pipes 9 are respectively provided with a first valve 10, and the two first valves 10 are alternately opened, so that the molecular sieve plates 12 in the two adsorption boxes 3 can alternately perform purification operation, and the purification efficiency can be improved; a frame body 11 is clamped in each of the two adsorption boxes 3, a plurality of layers of molecular sieve plates 12 are arranged in the frame body 11 at intervals, and the molecular sieve plates 12 are fixed in the frame body 11 through screws, so that the molecular sieve plates 12 can be conveniently replaced in the later period; the front side of adsorption box 3 is opened and is equipped with and is used for getting the mouth of putting of framework 11 taking out, get the internalization of putting and be provided with closure plate 24, closure plate 24 outside installation is taken out by the handle in conveniently following getting the mouth of putting with closure plate 24, rubber layer 13 has been laid to closure plate 24's week side, the rigid coupling has fixed block 14 on the closure plate 24, be provided with on the adsorption box 3 and be used for carrying out the mounting of being connected with fixed block 14, one side bottom of adsorption box 3 is provided with blast pipe 23. The exhaust pipe 23 is used for exhausting the purified hydrogen, and an air pump is mounted on the exhaust pipe 23, so that the purified hydrogen can be rapidly introduced into the hydrogen storage device.

Further, a dust exhaust pipe 15 is arranged at the bottom of the dust filter box 2, and a second valve 16 is mounted on the dust exhaust pipe 15.

Further, one side outer wall fixed mounting of dust rose box 2 has electric telescopic handle 17, electric telescopic handle 17's expansion end inserts in dust rose box 2 and the rigid coupling has cleaning brush 18, and cleaning brush 18's sponge layer top and the laminating of crossing the activity of filter plate 5 bottom.

Further, the two sides of the inner wall of the adsorption box 3 are symmetrically and fixedly connected with two pairs of limiting strips 19, and the space formed between the two pairs of limiting strips 19 is matched with the frame body 11, so that the frame body 11 is conveniently limited and mounted.

Further, shutoff board 24 with get and put mouthful looks adaptation, and 24 week sides of shutoff board lay rubber layer 13 with get and put mouthful inner wall sliding connection, the setting of rubber layer 13 is used for improving the leakproofness of getting and putting the mouth, avoids hydrogen to leak.

Further, the fixing piece comprises an internal thread sleeve 20, the internal thread sleeve 20 is fixedly connected with the outer wall of the adsorption box 3, a T-shaped screw 21 penetrates through the internal thread of the internal thread sleeve 20, and the head end of the T-shaped screw 21 is in threaded connection with a threaded hole 22 formed in the fixing block 14.

Furthermore, the frame body 11 is communicated front and back and up and down, so that when the molecular sieve plate 12 is subjected to high-temperature regeneration, the molecular sieve plate 12 does not need to be taken down from the frame body 11, the process of detaching and re-installing the molecular sieve plate 12 is omitted, the frame body 11 corresponds to the taking and placing opening and is adaptive to the taking and placing opening, so that the frame body 11 can be taken out through the taking and placing opening, and the high-temperature regeneration of the molecular sieve plate 12 in the frame body 11 is convenient.

The working principle is as follows: when the device is used, hydrogen prepared from coke oven gas is introduced into the dust filter boxes 2 through the gas inlet pipe 4, the hydrogen rapidly passes through the filter screen plates 5 by starting the fan 6 and then enters one of the adsorption boxes 3 for purification again, and the hydrogen can filter dust in the hydrogen through the filter screen plates 5, so that the purity of the hydrogen is improved; the electric telescopic rod 17 drives the sweeping brush 18 to reciprocate, so that dust filtered on the filter screen plate 5 can be removed in the moving process, the filter holes of the filter screen plate 5 are prevented from being blocked by the dust, and the passing efficiency of hydrogen is not easily influenced; the dust is swept down and falls into the dust exhaust pipe 15, and can be exhausted by opening the second valve 16; hydrogen enters one adsorption box 3 from a second connecting pipe 8 under the action of a fan 6, and is adsorbed by a plurality of layers of electronic sieve plates for a plurality of times to remove water, carbon dioxide, oxygen and other macromolecules in the hydrogen, so that the purity of the hydrogen is improved; the adsorption tanks 3 in the utility model are provided with two and operate alternately, so that the hydrogen purification work can be continued when the molecular sieve plate 12 is regenerated at high temperature, and the hydrogen purification efficiency can be improved; when the molecular sieve plate 12 is subjected to high-temperature regeneration, the first valve 10 above the other adsorption tank 3 is opened, the first valve 10 above the currently running adsorption tank 3 is closed, then the T-shaped screw 21 is disassembled to release the fixation of the fixed block 14 and the plugging plate 24, after the release, the plugging plate 24 is taken out from the taking and placing opening through the handle on the plugging plate 24, after the taking out, the frame body 11 is taken out from the adsorption tank 3, the high-temperature regeneration can be performed on the molecular sieve plate 12, the adsorption effect of the molecular sieve plate 12 is ensured, and the purification effect of hydrogen can be improved.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The purification equipment for preparing hydrogen from coke oven gas is characterized by comprising a base (1), a dust filter box (2) and two adsorption boxes (3); the dust filter box (2) and the two adsorption boxes (3) are fixedly mounted on the upper surface of the base (1), one side of the dust filter box (2) is communicated with an air inlet pipe (4), a filter screen plate (5) is arranged inside the dust filter box (2), a fan (6) is fixedly mounted at the top of the dust filter box (2), the air inlet end of the fan (6) is communicated with the dust filter box (2) through a first connecting pipe (7), the air outlet end of the fan (6) is communicated with a second connecting pipe (8), the bottom of the second connecting pipe (8) is communicated with two air guide pipes (9), the bottom ends of the two air guide pipes (9) are respectively communicated with the two adsorption boxes (3), and first valves (10) are mounted on the two air guide pipes (9); two equal block has framework (11) in adsorption tank (3), the interval is provided with a plurality of layers of molecular sieve (12) in framework (11), the front side of adsorption tank (3) is opened and is equipped with and is used for getting the mouth of putting that framework (11) were taken out, it is provided with closure plate (24) to get the internalization of putting, rubber layer (13) have been laid to the week side of closure plate (24), the rigid coupling has fixed block (14) on closure plate (24), be provided with on adsorption tank (3) and be used for carrying out the mounting of being connected with fixed block (14), one side bottom of adsorption tank (3) is provided with blast pipe (23).

2. The purification equipment for preparing hydrogen from coke oven gas as claimed in claim 1, which is characterized in that: the bottom of the dust filter box (2) is provided with a dust exhaust pipe (15), and a second valve (16) is arranged on the dust exhaust pipe (15).

3. The purification equipment for preparing hydrogen from coke oven gas according to claim 1, which is characterized in that: the dust filter box is characterized in that an electric telescopic rod (17) is fixedly mounted on the outer wall of one side of the dust filter box (2), the movable end of the electric telescopic rod (17) is inserted into the dust filter box (2) and fixedly connected with a cleaning brush (18), and the top of a sponge layer of the cleaning brush (18) is movably attached to the bottom of the filter screen plate (5).

4. The purification equipment for preparing hydrogen from coke oven gas according to claim 1, which is characterized in that: two pairs of limiting strips (19) are symmetrically and fixedly connected to the inner walls of the two sides of the adsorption box (3), and the space formed between the two pairs of limiting strips (19) is matched with the frame body (11).

5. The purification equipment for preparing hydrogen from coke oven gas according to claim 1, which is characterized in that: the plugging plate (24) is matched with the taking and placing port, and the rubber layer (13) laid on the peripheral side of the plugging plate (24) is in sliding connection with the inner wall of the taking and placing port.

6. The purification equipment for preparing hydrogen from coke oven gas according to claim 1, which is characterized in that: the fixing piece comprises an internal thread sleeve (20), the internal thread sleeve (20) is fixedly connected with the outer wall of the adsorption box (3), a T-shaped screw rod (21) penetrates through the internal thread of the internal thread sleeve (20), and the head end of the T-shaped screw rod (21) is in threaded connection with a threaded hole (22) formed in the fixing block (14).

7. The purification equipment for preparing hydrogen from coke oven gas as claimed in claim 1, which is characterized in that: the frame body (11) is communicated front and back and up and down, and the frame body (11) is arranged corresponding to the taking and placing opening and is matched with the taking and placing opening.