CN214781688U

CN214781688U - Biogas desulfurization device

Info

Publication number: CN214781688U
Application number: CN202121189074.6U
Authority: CN
Inventors: 陈波; 李伟; 张政强; 郭利荣; 郭怀清
Original assignee: Zhejiang Wantai Environmental Engineering Co ltd
Current assignee: Zhejiang Wantai Environmental Engineering Co ltd
Priority date: 2021-05-29
Filing date: 2021-05-29
Publication date: 2021-11-19
Anticipated expiration: 2031-05-29

Abstract

The application discloses a methane desulfurization device, which relates to the technical field of desulfurization chemical industry and comprises a desulfurization tank, wherein a desulfurization space is formed in the desulfurization tank, a desulfurization tank for containing desulfurization liquid is arranged at the bottom of the desulfurization space, an air inlet pipe and an air outlet pipe are fixedly connected to the circumferential outer side wall of the desulfurization tank, a rotating shaft is rotatably arranged on the bottom surface of the desulfurization tank, a driving member for driving the rotating shaft to rotate is arranged on the desulfurization tank, a stirring member is arranged on the circumferential side wall of the rotating shaft, and the stirring member is positioned in the desulfurization space; by utilizing the concave arc-shaped side surface of the stirring component, very strong radial discharge capacity and dispersion force are formed in the stirring process, so that the reaction time of the methane containing hydrogen sulfide and the desulfurization solution is prolonged, the desulfurization strength of the methane containing hydrogen sulfide is enhanced, and the desulfurization effect of the methane containing hydrogen sulfide is improved.

Description

Biogas desulfurization device

Technical Field

The application relates to the technical field of desulfurization chemical industry, in particular to a biogas desulfurization device.

Background

At present, biogas is a combustible gas produced by various organic substances through the fermentation of microorganisms under the conditions of air isolation (anaerobic condition), proper temperature and pH value, and a large amount of hydrogen sulfide is produced in the production process of the biogas, wherein the hydrogen sulfide is a toxic gas.

Generally, before the biogas is used, hydrogen sulfide needs to be removed, the biogas is filled into a desulfurization tank containing desulfurization solution through an air inlet pipe when the hydrogen sulfide is removed, the hydrogen sulfide is removed from the biogas after the biogas containing the hydrogen sulfide is subjected to chemical reaction or microbial treatment in the desulfurization solution, and the biogas is discharged from an air outlet pipe of the desulfurization tank.

In view of the above-mentioned related technologies, the biogas containing hydrogen sulfide can directly move along the height direction of the desulfurization tank when entering the desulfurization solution, and the reaction time of the biogas containing hydrogen sulfide in the desulfurization solution is short, which results in poor desulfurization effect of the desulfurization tank.

SUMMERY OF THE UTILITY MODEL

In order to improve the desulfurization effect of the methane containing the hydrogen sulfide, the application provides a methane desulfurization device.

The application provides a marsh gas desulphurization unit adopts following technical scheme: the utility model provides a marsh gas desulphurization unit, includes the digester, the desulfurization space has been seted up to the inside of digester, the bottom in desulfurization space is provided with the desulfurization pond that is used for holding the doctor solution, the circumference lateral wall fixedly connected with intake pipe and the outlet duct of digester, the bottom surface of desulfurization pond rotates and is provided with the axis of rotation, be provided with on the digester and be used for driving the rotatory drive member of axis of rotation, be provided with the stirring component on the circumference lateral wall of axis of rotation, the stirring component is located the desulfurization space.

By adopting the technical scheme, when the methane containing hydrogen sulfide needs to be desulfurized, the methane is filled into the desulfurization tank of the desulfurization tank from the air inlet pipe, and is discharged from the air outlet pipe after reacting with the desulfurization solution in the desulfurization tank; when the methane containing the hydrogen sulfide enters the desulfurization tank, the driving member is started, the driving member drives the stirring member to operate, the methane containing the hydrogen sulfide and the desulfurization solution are fully mixed along with the operation of the stirring member, and the reaction time of the methane containing the hydrogen sulfide and the desulfurization solution is prolonged by utilizing the stirring of the stirring member, so that the desulfurization strength of the methane containing the hydrogen sulfide is enhanced, and the desulfurization effect of the methane containing the hydrogen sulfide is improved.

Preferably, the air inlet pipe is provided with a first one-way valve, and the conduction direction of the first one-way valve is from one end far away from the desulfurization tank to one end close to the desulfurization tank.

By adopting the technical scheme, when the methane containing hydrogen sulfide is not filled into the desulfurization tank, the desulfurization liquid in the desulfurization tank is prevented from flowing out of the air inlet pipe.

Preferably, the stirring component includes a plurality of stirring boards, and a plurality of stirring boards evenly set up along axis of rotation circumferencial direction, the one end setting of stirring board is in the axis of rotation, every are kept away from to the other end of stirring board one side of stirring board is concave arc, and concave arc side is in the one side of corresponding stirring board rotation direction dorsad.

Through adopting above-mentioned technical scheme, the axis of rotation takes place to rotate under the drive of drive component, and drive a plurality of stirring boards and do the rotary motion who uses the axis of rotation as the axle center, the doctor solution that thoughtlessly has marsh gas along with the rotation of stirring board can move the concave arc side of stirring board, utilize the function of the concave arc side of stirring board to keep in the doctor solution, make the stirring board form very strong radial discharge capacity and dispersion force, make marsh gas and doctor solution carry out abundant mixture, effectively improve the desulfurization effect of the marsh gas that contains hydrogen sulfide in the doctor solution.

Preferably, a plurality of through holes are formed in the side face of the stirring plate, penetrate through the side wall of the stirring plate and are arranged in a matrix mode along the concave arc-shaped side face of the stirring plate.

Through adopting above-mentioned technical scheme, the doctor solution flows through from the side of stirring board at a small part doctor solution of stirring board rotation in-process, reduces doctor solution to the extrusion force of stirring board, reduces the requirement to the drive power that the stirring member provided.

The outer circumference lateral wall fixedly connected with connecting pipe of digester, the top surface in desulfurization space is provided with the shower head, the lateral wall and the shower head intercommunication of digester upper end are passed to the one end of connecting pipe, the other end fixed connection of connecting pipe is at the lower extreme of digester, be provided with solution extraction mechanism on the digester, solution extraction mechanism is in the digester, the one end intercommunication that the shower head was kept away from to solution extraction component and connecting pipe.

Through adopting above-mentioned technical scheme, when desulfurization work began, start solution extraction component, solution extraction component extracts the doctor solution in order to pour into the connecting tube in from the desulfurization pond, makes the doctor solution spout from the shower head through the connecting tube, and the marsh gas through desulfurization in the desulfurization pond overflows by the top of desulfurization pond this moment, and flows to the outlet duct, and meanwhile the doctor solution that is sprayed by the shower head and the marsh gas that overflows the desulfurization pond contact each other, thereby carry out the secondary desulfurization to marsh gas, with the desulfurization effect that the reinforcing contains hydrogen sulfide marsh gas.

Preferably, the solution extraction member comprises a piston and a liquid inlet pipe, one end of the liquid inlet pipe penetrates through the side wall of the desulfurization tank and is communicated with the connecting pipe, a second one-way valve is arranged between the liquid inlet pipe and the connecting pipe, and the conduction direction of the second one-way valve is from one end connected with the liquid inlet pipe to the other end connected with the connecting pipe; a liquid inlet through groove is formed in the circumferential side wall of the liquid inlet pipe in the radial direction, a third one-way valve is fixedly connected to the circumferential outer side wall of the liquid inlet pipe, the third one-way valve is located in the liquid inlet through groove, and the conduction direction of the third one-way valve is from one end far away from the liquid inlet pipe to one end close to the liquid inlet pipe; the piston slides and sets up in the inlet tube, fixedly connected with is used for driving piston reciprocating motion's drive assembly in the axis of rotation, the piston is fixed even on drive assembly's output.

Through adopting above-mentioned technical scheme, when the axis of rotation is rotatory, drive assembly drives piston reciprocating motion in the feed liquor pipe, when the piston is to keeping away from the direction motion of connecting pipe, the inside atmospheric pressure of connecting pipe reduces, doctor solution in the desulfurization pond enters into in the feed liquor pipe through the third check valve, when the piston is to the direction motion that is close to the connecting pipe, doctor solution in the promotion connecting pipe squeezes open the second guide valve and enters into in the connecting pipe, through the aforesaid operation, accomplish the confession liquid work to the connecting pipe, and prevent to enter into the doctor solution refluence in the connecting pipe through setting up the second check valve.

Preferably, the diameter of the liquid inlet pipe is larger than that of the connecting pipe.

Through adopting above-mentioned technical scheme, under the certain circumstances of piston stroke, the feed liquor volume of increase feed liquor pipe to can start the work of shower head fast.

Preferably, the liquid inlet pipe is positioned on the bottom surface of the desulfurization tank.

Through adopting above-mentioned technical scheme, follow the below of desulfurization pond and absorb the doctor solution, spray the top of desulfurization pond again, let the doctor solution in the desulfurization pond be in under the circulation state to make the doctor solution's in the desulfurization pond concentration even.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by utilizing the concave arc-shaped side surface of the stirring plate, very strong radial displacement and dispersion force are formed in the stirring process, so that the reaction time of the methane containing hydrogen sulfide and the desulfurization solution is prolonged, the desulfurization strength of the methane containing hydrogen sulfide is enhanced, and the desulfurization effect of the methane containing hydrogen sulfide is improved;

2. through setting up solution extraction component, carry out the secondary desulfurization to marsh gas, make the doctor solution in the desulfurization pond be in under the circulation state simultaneously to make the doctor solution's in the desulfurization pond concentration even.

Drawings

Fig. 1 is a schematic view of the overall structure of a biogas desulfurization apparatus according to an embodiment of the present application.

Fig. 2 is a schematic view of the internal structure of the biogas desulfurization apparatus according to the embodiment of the present application.

FIG. 3 is a schematic structural view of a transmission assembly and a stirring member according to an embodiment of the present application.

Fig. 4 is an enlarged view at Q in fig. 2.

Description of reference numerals: 10. a devulcanizer; 11. an air inlet pipe; 12. an air outlet pipe; 13. a support frame; 14. a motor; 15. a first check valve; 16. a desulfurization tank; 20. a connecting pipe; 21. a shower head; 22. a liquid inlet pipe; 23. a second one-way valve; 24. a third check valve; 25. a rotating shaft; 26. a slider; 27. a transmission chute; 28. a liquid inlet through groove; 30. rotating the disc; 31. a transmission groove; 32. a piston; 33. stirring the A disc; 34. stirring a B disc; 35. a stirring plate; 36. a fixing member; 37. a connecting member; 38. a connecting rod; 39. and a through hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-4. The application discloses marsh gas desulphurization unit, refer to fig. 1 and fig. 2, including digester 10, intake pipe 11, outlet duct 12, support frame 13, drive component and stirring component, wherein the desulfurization space has been seted up to the inside of digester 10, and the inside lower extreme in desulfurization space is desulfurization pond 16. The intake pipe 11 sets up lower extreme and the desulfurization pond 16 intercommunication at the lateral wall of digester 10 circumference, and is provided with the direction of switching on the intake pipe 11 and from keeping away from digester 10 one end to being close to the first check valve 15 of digester 10 one end. The upper end of outlet duct 12 setting at digester 10 circumference lateral wall and with the desulfurization space intercommunication, the lower bottom surface of digester 10 is provided with the support frame 13 that is used for supporting digester 10, and the drive component setting is in the lower bottom surface of digester 10, and the stirring component setting just provides power operation through the drive component in desulfurization pond 16.

Referring to fig. 2 and 3, the stirring member includes a rotation shaft 25, a stirring a disk 33, a stirring B disk 34, and a plurality of stirring plates 35, wherein one end of the rotation shaft 25 is rotatably disposed in the desulfurization tank 16, and the other end of the rotation shaft 25 penetrates through the lower bottom surface of the desulfurization tank 10. In order to facilitate the movement of the rotating shaft 25, the driving component is a motor 14, and the output end of the motor 14 is fixedly connected with the end part of the rotating shaft 25 penetrating through the desulfurization tank 10. Stirring A dish 33 and stirring B dish 34 all are provided with mounting 36, half-circular arc's recess has all been seted up to mounting 36's opposite flank, when two mounting 36 opposite flank laminating, two recess intercommunications and form the logical groove connection with axis of rotation 25 looks adaptation and lead to the groove, after the mutual butt in the side of two mounting 36, establish two mounting 36 covers of mutual butt on axis of rotation 25, and be in the same place two mounting 36 fixed connection with the bolt, mounting 36 produces the centre gripping to axis of rotation 25 simultaneously, the frictional force that the centre gripping formed is spacing to mounting 36, spacing two mounting 36 positions in axis of rotation 25.

Referring to fig. 2 and 3, two connecting members 37 are provided on the stirring B disk, the two connecting members 37 are symmetrically arranged on the stirring B disk 34 with respect to the center line of the groove of the fixing member 36, and the two connecting members 37 are adjacent to the opposite sides of the two fixing members 36. When the two fixing members 36 abut against each other, the rotating portion of the connecting member 37 is fixedly connected to the mixer a disk 33 by a bolt. Three stirring plates 35 are respectively arranged on the opposite sides of the stirring A disc 33 and the stirring B disc 34, and the six stirring plates 35 are uniformly arranged along the circumferential direction of the rotating shaft 25 after the stirring A disc 33 and the stirring B disc 34 are connected together. One side of six stirring boards 35 is concave arc, and when axis of rotation 25 was rotatory, concave arc side was in the one side of corresponding stirring board 35 dorsad axis of rotation 25 rotation direction to a plurality of through-holes 39 that run through stirring board 35 lateral wall are seted up to the side of stirring board 35, and a plurality of through-holes 39 are followed the concave arc terminal surface of stirring board 35 and are the matrix arrangement.

Referring to fig. 2 and 3, in order to enhance the desulfurization effect of the biogas, a spray header 21 and a solution extraction member disposed in the desulfurization tank 16 are provided on the top surface of the desulfurization space. Wherein the solution drawing member includes a connection pipe 20, a piston 32, a liquid inlet pipe 22, and a driving assembly for driving the piston 32. One end of the connecting pipe 20 penetrates through the circumferential side wall at the upper end of the desulfurization tank 10 to be communicated with the spray header 21, and the other end of the connecting pipe 20 is fixedly connected to the lower end of the desulfurization tank 10. The liquid inlet pipe 22 is fixedly connected to the inner circumferential side wall of the desulfurization tank 16 near the bottom surface and is communicated with the connecting pipe 20, and the diameter of the liquid inlet pipe 22 is larger than that of the connecting pipe 20. A second check valve 23 is provided between the liquid inlet pipe 22 and the connection pipe 20 in a direction from one end connected to the liquid inlet pipe 22 to the other end connected to the connection pipe 20. The circumferential side wall of the liquid inlet pipe 22 is provided with a liquid inlet through groove 28 along the radial direction, and the side wall of the liquid inlet through groove 28 is provided with a third one-way valve 24 which is communicated from one end far away from the liquid inlet pipe 22 to one end close to the liquid inlet pipe 22.

Referring to fig. 3 and 4, the transmission assembly includes the rolling disc 30 coaxially fixed on the rotation shaft 25, the upper and lower terminal surface of the rolling disc 30 is eccentrically provided with the transmission groove 31 respectively, two transmission grooves 31 are symmetrically arranged, the rolling disc 30 is provided with the connecting rod 38 in a sliding manner, the end of the connecting rod 38 close to the rolling disc 30 is provided with the transmission chute 27, the end of the connecting rod 38 close to the rolling disc 30 is fixedly connected with two sliders 26, the two sliders 26 are respectively arranged on the two side walls of the transmission chute 27, the two sliders 26 are slidably arranged in the transmission groove 31, the other end of the connecting rod 38 is inserted into the end of the liquid inlet pipe 22 far away from the connecting rod 38 and is fixedly connected with the piston 32, and the piston 32 is slidably arranged in the liquid inlet pipe 22.

The embodiment of the application is an implementation principle of a biogas desulfurization device: when the device needs to be used, firstly, desulfurization liquid is poured into the desulfurization tank 16, then methane needing to remove hydrogen sulfide is filled into the desulfurization tank from the air inlet pipe 11, the filled methane enters the desulfurization liquid, meanwhile, the motor 14 is started, the motor 14 drives the rotating shaft 25 to rotate, the rotating shaft 25 drives the stirring A disc 33 and the stirring B disc 34 to synchronously rotate, so that the stirring plate 35 is driven to stir the desulfurization liquid to be mixed with the methane, the desulfurization time of the methane in the stirring tank is prolonged, and the desulfurized methane overflows from the upper part of the desulfurization tank 16 and is discharged through the air outlet pipe 12.

When the rotating shaft 25 rotates, the rotating disc 30 is also driven to rotate, so that the connecting rod 38 and the piston 32 are driven to reciprocate in the liquid inlet pipe 22, when the piston 32 moves towards the direction far away from the connecting pipe 20, the desulfurization liquid enters the liquid inlet pipe 22 from the third one-way valve 24, when the piston 32 moves towards the connecting pipe 20, the desulfurization liquid in the liquid inlet pipe 22 is pressed into the connecting pipe 20, and through multiple movements of the piston 32, the desulfurization liquid in the connecting pipe 20 is sprayed out from the spray header 21 and is mixed with biogas overflowing from the desulfurization tank 16, so as to form secondary desulfurization.

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. The utility model provides a marsh gas desulphurization unit, includes digester (10), the desulfurization space has been seted up to the inside of digester (10), the bottom in desulfurization space is provided with desulfurization pond (16) that are used for holding the doctor solution, circumference lateral wall fixedly connected with intake pipe (11) and outlet duct (12) of digester (10), its characterized in that: the bottom surface of desulfurization pond (16) is rotated and is provided with axis of rotation (25), be provided with on digester (10) and be used for driving the rotatory drive component of axis of rotation (25), be provided with the stirring component on the circumference lateral wall of axis of rotation (25), the stirring component is located the desulfurization space.

2. The biogas desulfurization apparatus according to claim 1, characterized in that: be provided with first check valve (15) on intake pipe (11), the direction of conducting of first check valve (15) is from keeping away from digester (10) one end to being close to digester (10) one end.

3. The biogas desulfurization apparatus according to claim 1, characterized in that: the stirring component includes a plurality of stirring boards (35), and a plurality of stirring boards (35) evenly set up along axis of rotation (25) circumferencial direction, the one end setting of stirring board (35) is on axis of rotation (25), every are kept away from to the other end of stirring board (35) one side of stirring board (35) is concave arc, and concave arc side is in corresponding one side of stirring board (35) rotation direction of axis of rotation (25) dorsad.

4. A biogas desulfurization unit according to claim 3, characterized in that: a plurality of through-holes (39) have been seted up to the side of stirring board (35), through-hole (39) run through the lateral wall of stirring board (35), and it is a plurality of through-hole (39) are along the concave arc side of stirring board (35) and are the matrix arrangement.

5. A biogas desulfurization unit according to claim 3, characterized in that: outer circumference lateral wall fixedly connected with connecting pipe (20) of digester (10), the top surface in desulfurization space is provided with shower head (21), the lateral wall and shower head (21) intercommunication of digester (10) upper end are passed to the one end of connecting pipe (20), the other end fixed connection of connecting pipe (20) is at the lower extreme of digester (10), be provided with solution extraction mechanism on digester (10), solution extraction mechanism is in desulfurization pond (16), the one end intercommunication of shower head (21) is kept away from with connecting pipe (20) to solution extraction component.

6. The biogas desulfurization apparatus according to claim 5, characterized in that: the solution extraction component comprises a piston (32) and a liquid inlet pipe (22), one end of the liquid inlet pipe (22) penetrates through the side wall of the desulfurization tank (10) and is communicated with the connecting pipe (20), a second one-way valve (23) is arranged between the liquid inlet pipe (22) and the connecting pipe (20), and the conduction direction of the second one-way valve (23) is from one end connected with the liquid inlet pipe (22) to the other end connected with the connecting pipe (20); a liquid inlet through groove (28) is formed in the circumferential side wall of the liquid inlet pipe (22) along the radial direction, a third one-way valve (24) is fixedly connected to the circumferential outer side wall of the liquid inlet pipe (22), the third one-way valve (24) is located in the liquid inlet through groove (28), and the conducting direction of the third one-way valve (24) is from one end far away from the liquid inlet pipe (22) to one end close to the liquid inlet pipe (22); piston (32) slide to be set up in feed liquor pipe (22), fixedly connected with is used for driving piston (32) reciprocating motion's transmission assembly on axis of rotation (25), piston (32) fixed connection is on transmission assembly's output.

7. The biogas desulfurization apparatus according to claim 6, characterized in that: the diameter of the liquid inlet pipe (22) is larger than that of the connecting pipe (20).

8. The biogas desulfurization apparatus according to claim 7, characterized in that: the liquid inlet pipe (22) is positioned at the bottom surface of the desulfurization tank (16).