A repeated diffusion type foam automatic rapid separator for hydrogen production equipment by electrolysis of water

Abstract

The present application relates to the technical fields of hydrogen production by water electrolysis, in particular to a repeated diffusion type foam automatic rapid separator for hydrogen production equipment by water electrolysis, comprising a lower shell assembly and an upper shell assembly, an annular groove is installed inside the lower shell assembly, and a flow guide pipe is in contact with the annular groove, the upper shell assembly comprises a cylindrical shell, and a separation tower is uniformly superimposed inside the cylindrical shell, the separation tower comprises a fixed disc, a flow guide cylinder is integrally connected to the center of the outer surface of the fixed disc, gas outlet holes and gas inlet holes are uniformly arranged on the outer surface of the flow guide cylinder, a partition is integrally connected inside the flow guide cylinder, the gas outlet holes and the gas inlet holes are arranged on the upper and lower sides of the partition, through holes are uniformly arranged on the outer side of the flow guide cylinder, the through holes penetrate the outer surface of the fixed disc, and the flow guide pipe penetrates the through holes and is arranged. Without the help of any external force, the present application can rapidly, continuously and automatically separate foam gas, the overall equipment structure is compact, the volume is small, and the hydrogen production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogen production by water electrolysis, in particular to a repeated diffusion type foam automatic rapid separator for hydrogen production by water electrolysis equipment. BACKGROUND

[0002] With the large-scale development of photovoltaic and wind power, the problem of abandoned light and wind will be more serious. Since photovoltaic and wind power are intermittent energy sources, the voltage and current change greatly and are unstable, making it difficult to access the grid. This will inevitably lead to a significant decrease in the price of wind and light power. In addition, the low power quality requirement for electrolytic hydrogen production creates favorable conditions for large-scale hydrogen production, large-scale hydrogen storage and large-scale hydrogen transportation.

[0003] If hydrogen energy is used as a medium to connect the power grid, transportation and buildings to form an energy intelligent network, it will facilitate the mutual conversion and scheduling of electric energy and thermal energy, realize energy circulation, and achieve a virtuous cycle of the economy.

[0004] It is not difficult to find that hydrogen energy is the focus of connecting electric energy and thermal energy, and is the bridge to a zero-carbon society and a circular economy. Therefore, the development of hydrogen energy is very important. The development of hydrogen energy cannot be separated from safe, efficient, inexpensive, high-power, small-volume and automated hydrogen production equipment. At present, there are many methods for hydrogen production, but none of them can meet all six conditions. In alkaline (acidic) electrolysis equipment, foam automatic separation is an important step. However, the existing foam automatic separation equipment is large in size and needs external driving force, which increases the difficulty of hydrogen production.

[0005] Therefore, there is an urgent need to design a repeated diffusion type foam automatic rapid separator for hydrogen production by water electrolysis equipment to solve the above problems. SUMMARY

[0006] The present application relates to the technical field of hydrogen production by water electrolysis, in particular to a repeated diffusion type foam automatic rapid separator for hydrogen production by water electrolysis equipment.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The utility model provides a kind of automatic quick separator of repeated diffusion type foam for hydrogen production equipment of electrolytic water, including lower shell assembly and upper shell assembly, the lower shell assembly is connected with upper shell assembly fixed, the inside of the lower shell assembly is installed annular groove, the annular groove is in contact with flow guide pipe, the upper shell assembly includes cylindrical shell, the inside of the cylindrical shell is uniformly superimposed with separation tower, the separation tower includes fixed disc, the outer surface center of the fixed disc is integrally connected with flow guide cylinder, the outer surface of the flow guide cylinder is evenly provided with gas outlet and gas inlet, the inside of the flow guide cylinder is integrally connected with baffle, and gas outlet and gas inlet are distributed on the upper and lower sides of baffle, the outside of the flow guide cylinder is evenly provided with through-hole, the through-hole penetrates the outer surface of fixed disc, and flow guide pipe is arranged through through-hole.

[0009] Preferably, the lower shell assembly includes a lower shell body, which is hemispherical, and a first inner thread joint integrally connected at the center of the bottom of the lower shell body, a first connecting flange integrally connected to the top of the lower shell body, a sealing groove provided on the upper surface of the first connecting flange, and an annular step provided on the inner wall of the first connecting flange.

[0010] Preferably, the annular groove is a U-shaped rotating body composed of an outer cylindrical surface, an annular bottom plane, and an inner cylindrical surface, the annular bottom plane is integrally connected with the outer cylindrical surface and the inner cylindrical surface, the outer cylindrical surface is fixed on the outer side of the annular bottom plane, the inner cylindrical surface is fixed at the center of the annular bottom plane, the height of the inner cylindrical surface is less than the height of the outer cylindrical surface, and the outer periphery of the outer cylindrical surface is in interference fit with the annular step.

[0011] Preferably, the bottom end of the cylindrical shell is fixed with a second connecting flange, the second connecting flange is in contact with the first connecting flange, a connecting piece is mounted on the second connecting flange, the second connecting flange is connected and fixed with the first connecting flange through the connecting piece, the inner wall of the outer cylindrical surface is tightly attached to the inner wall of the cylindrical shell, the cylindrical shell is cylindrical, a shell head is integrally connected to the top of the cylindrical shell, the shell head is semispherical, a third inner thread joint is fixed at the center of the top end of the shell head, and a second inner thread joint is fixed above the second connecting flange near the bottom end of the cylindrical shell.

[0012] Preferably, the connecting piece includes an annular flange ring, a semi-annular flange ring, and a fixed bolt, the annular flange ring is annular, the semi-annular flange ring is semi-annular, the annular flange ring is sleeved on the lower shell body and in contact with the first connecting flange, the semi-annular flange ring is in contact with the second connecting flange, the fixed bolt is composed of an inner hexagonal bolt and a nut, the inner hexagonal bolt passes through the semi-annular flange ring, the second connecting flange, the first connecting flange, and the annular flange ring in sequence and is fastened by the nut.

[0013] Preferably, a plug is inserted into the outer surface of the fixed disk, and the plug includes a large frustum, and the outer surface of the large frustum is integrally connected with a small frustum.

[0014] Preferably, a raised edge is formed around the outer periphery of the bottom of the through hole, and the raised edge is connected and fixed to the surface of the fixed disk, and a boss is integrally connected to the top of the guide cylinder.

[0015] Preferably, the guide tubes are composed of five, the five guide tubes are arranged in a ring shape, and the lengths of the five guide tubes are doubled.

[0016] Preferably, the guide tube includes a tube body and a waist-shaped hole. The tube body is tubular, the top of the tube body passes through the through hole and is bonded and fixed to the inner wall of the raised edge, the bottom of the tube body is against the annular bottom plane, and a waist-shaped hole is opened at the bottom of the tube body, and the waist-shaped hole is waist-shaped.

[0017] Preferably, the separation tower consists of five layers, the five tubes pass through five layers of fixed plates in sequence, the five layers of guide tubes are connected end to end through bosses, and the boss of the top layer of guide tube is fixed by plugging into the third internal thread joint.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the repeated diffusion foam automatic rapid separator for water electrolysis hydrogen production equipment described in the present invention can quickly and continuously automatically separate foam gas without the aid of any external force, and the overall equipment structure is compact and small in size, reducing the cost of hydrogen production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the structure at center A;

[0021] Figure 3 For the present invention Figure 1 Schematic diagram of the overall structure of the middle and lower shell components;

[0022] Figure 4 For the present invention Figure 1 Schematic diagram of the overall structure of the middle annular groove;

[0023] Figure 5 For the present invention Figure 1 Schematic diagram of the overall structure of the middle and upper shell assembly;

[0024] Figure 6 For the present invention Figure 1 Schematic diagram of the overall structure of the middle connector;

[0025] Figure 7 For the present invention Figure 1The overall structure diagram of the plug;

[0026] Figure 8 For the present application Figure 1 The overall structure diagram of the separation tower and the flow guide pipe;

[0027] Figure 9 For the present application Figure 1 The overall structure diagram of the separation tower and the flow guide pipe.

[0028] In the figure: 1, lower shell assembly; 11, lower shell; 12, first connecting flange; 13, annular step; 14, sealing groove; 15, first inner thread joint; 2, annular groove; 21, outer cylindrical surface; 22, annular bottom plane; 23, inner cylindrical surface; 3, upper shell assembly; 31, second connecting flange; 32, second inner thread joint; 33, shell head; 34, third inner thread joint; 35, cylindrical shell; 4, connecting piece; 41, annular flange ring; 42, semi-annular flange ring; 43, fixing bolt; 5, plug; 51, large circular table; 52, small circular table; 6, separation tower; 61, fixing disc; 62, flow guide cylinder; 63, gas outlet hole; 64, gas inlet hole; 65, boss; 66, partition plate; 67, through hole; 68, raised edge; 7, flow guide pipe; 71, pipe body; 72, waist-shaped hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] The present application is provided with a separation tower in the upper shell assembly. The foam gas generated by work enters the cylindrical shell from the second inner thread joint, moves upward into the flow guide cylinder, enters a layer of isolation area from the lower chamber below the bottom layer of the partition plate through the transverse gas outlet hole, and the bubbles are broken and dispersed by gravity. Part of the dispersed electrolyte returns to the annular groove through the flow guide pipe, overflows into the lower shell, and is then sent out through the first inner thread joint. The separated foam gas enters the upper chamber above the partition plate through the gas inlet hole, and is then discharged into the second layer of isolation area from the gas outlet hole at the bottom of the upper layer of the flow guide cylinder. The bubbles are broken and dispersed by repeated gravity, and the gas without foam is finally discharged from the third inner thread joint. The entire separation process does not require external driving force, has simple structure, remarkable effect, compact overall equipment structure, and small volume, and reduces the cost of hydrogen production.

[0031] Please refer to Figures 1-9, an embodiment of the present invention provides a repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment, including a lower shell component 1 and an upper shell component 3, the lower shell component 1 is connected and fixed to the upper shell component 3, an annular groove 2 is installed inside the lower shell component 1, and a guide tube 7 is abutted in the annular groove 2, the upper shell component 3 includes a cylindrical shell 35, and a separation tower 6 is evenly overlapped inside the cylindrical shell 35, and the separation tower 6 includes a fixed disk 61, and a guide tube 62 is integrally connected at the center of the outer surface of the fixed disk 61, and the outer surface of the guide tube 62 is evenly provided with an air outlet 63 and an air inlet 64, and the interior of the guide tube 62 is integrally connected with a partition 66, and the air outlet 63 and the air inlet 64 are distributed on the upper and lower sides of the partition 66, and the outer side of the guide tube 62 is evenly provided with through holes 67, the through holes 67 pass through the outer surface of the fixed disk 61, and the guide tube 7 passes through the through holes 67.

[0032] like Figure 3 As shown, the lower shell assembly 1 includes a lower shell 11, which is hemispherical, and a first internal thread joint 15 is integrally connected to the bottom center of the lower shell 11, and a first connecting flange 12 is integrally connected to the top of the lower shell 11. A sealing groove 14 is provided on the upper surface of the first connecting flange 12 for installing a sealing ring, and an annular step 13 is provided on the inner wall of the first connecting flange 12 for installing the annular groove 2.

[0033] like Figure 4 As shown, the annular groove 2 is a U-shaped rotating body. The annular groove 2 is composed of three parts: an outer cylindrical surface 21, an annular bottom plane 22 and an inner cylindrical surface 23. The outer cylindrical surface 21 and the inner cylindrical surface 23 are integrally connected on the annular bottom plane 22. The outer cylindrical surface 21 is fixed on the outside of the annular bottom plane 22, and the inner cylindrical surface 23 is fixed at the center of the annular bottom plane 22. The inner cylindrical surface 23 serves as an overflow surface for recovering the electrolyte, and its height is less than the height of the outer cylindrical surface 21. During operation, the annular groove 2 is filled with electrolyte, which plays a sealing role below the guide tube 7, so as to prevent the foam gas waiting for separation from directly passing through the guide tube 7 into the upper layer of the separation tower 6. The outer periphery of the outer cylindrical surface 21 is interference fit with the annular step 13 to maintain the sealing connection between the annular groove 2 and the lower shell assembly 1.

[0034] like Figure 1As shown, the bottom end of the cylindrical shell 35 is fixed with the second connecting flange 31, the second connecting flange 31 is in abutment with the first connecting flange 12, and the second connecting flange 31 is installed with the connecting piece 4, the second connecting flange 31 is connected and fixed with the first connecting flange 12 through the connecting piece 4, the inner wall of the outer cylindrical surface 21 is closely attached to the inner wall of the cylindrical shell 35, the cylindrical shell 35 is cylindrical, the top of the cylindrical shell 35 is integrally connected with the shell head 33, the shell head 33 is semispherical, and the top center of the shell head 33 is fixed with the third female thread joint 34, the bottom end of the cylindrical shell 35 is fixed with the second female thread joint 32 above the second connecting flange 31, and the function of the upper shell assembly 3 is to seal the separation tower 6, and the purpose is to force the foam gas to pass through each layer of the separation tower 6 from bottom to top according to the designed path, so as to achieve the expected separation effect.

[0035] As shown in Figure 1 , Figure 2 and Figure 6 , the connecting piece 4 includes an annular flange ring 41, a semi-annular flange ring 42 and a fixed bolt 43, the annular flange ring 41 is annular, the semi-annular flange ring 42 is semi-annular, the annular flange ring 41 is sleeved on the lower shell 11 and abuts against the first connecting flange 12, the semi-annular flange ring 42 abuts against the second connecting flange 31, and the fixed bolt 43 is composed of an internal hexagonal bolt and a nut, the internal hexagonal bolt passes through the semi-annular flange ring 42, the second connecting flange 31, the first connecting flange 12 and the annular flange ring 41 in sequence and is fastened by the nut, for clamping the first connecting flange 12 and the second connecting flange 31, so that the lower shell assembly 1 and the upper shell assembly 3 form a closed cavity, facilitating assembly.

[0036] As shown in Figure 1 , Figure 7 and Figure 9 , the outer surface of the fixed disc 61 is inserted with a plug 5, the plug 5 includes a large circular table 51, the outer surface of the large circular table 51 is integrally connected with a small circular table 52, which blocks the through hole 67 on the fixed disc 61 without the connection of the flow guide pipe 7, and the purpose is to prevent the foam gas from directly entering the upper layer from the lower layer.

[0037] As shown in Figures 8-9 , the bottom outer periphery of the through hole 67 is surrounded by a raised edge 68, and the raised edge 68 is connected and fixed with the surface of the fixed disc 61, which increases the bonding area when the through hole 67 is combined with the flow guide pipe 7, and the top of the flow guide cylinder 62 is integrally connected with a boss 65, which is used for limiting and fixing when the upper and lower layer flow guide cylinders 62 are stacked, facilitating stacking assembly.

[0038] As shown in Figure 1 and Figure 9 , the flow guide pipe 7 is composed of five, the five flow guide pipes 7 are arranged in a ring shape, and the length of the five flow guide pipes 7 is one time longer, so that the five flow guide pipes 7 can be connected to one layer in the separation tower 6 respectively.

[0039] like Figure 1 、 Figure 8 and Figure 9 As shown, the guide tube 7 includes a tube body 71 and a waist-shaped hole 72. The tube body 71 is tubular. The top of the tube body 71 passes through the through hole 67 and is bonded and fixed to the inner wall of the raised edge 68. The bottom of the tube body 71 is against the annular bottom plane 22. The function of the tube body 71 is to communicate with the through hole 67 to form a return channel for the electrolyte. A waist-shaped hole 72 is opened at the bottom of the tube body 71. The waist-shaped hole 72 is waist-shaped, so that the dissipated electrolyte can return to the annular groove 2 without obstacles.

[0040] like Figure 1 、 Figure 8 and Figure 9 As shown, the separation tower 6 consists of five layers, and five tube bodies 71 pass through the five-layer fixed plate 61 in sequence. The five layers of guide tubes 62 are connected end to end through the boss 65, and the boss 65 of the top layer of guide tube 62 is plugged and fixed with the third internal thread connector 34. This design allows the electrolyte dissipated from each layer of the separation tower 6 to flow into the annular groove 2 through the guide tube 7 for collection.

[0041] Working principle: When in use, the foam gas generation pipeline generated during work is connected to the second internal thread joint 32, and the foam gas enters the cylindrical shell 35 from the second internal thread joint 32. The foam gas moves upward into the guide tube 62, and from the lower chamber under the bottom partition 66, enters the first isolation area through the horizontal air outlet 63. The bubbles are broken and dissipated by gravity, and the partially dissipated electrolyte returns to the annular groove 2 through the guide tube 7 and overflows into the lower shell 11 for collection, and then is sent out through the first internal thread joint 15.

[0042] The foam gas that has not been completely separated enters the upper chamber above the partition 66 horizontally through the air inlet 64, and is then discharged into the second-layer isolation area from the air outlet 63 at the bottom of the connected upper-layer guide tube 62 for secondary foam separation, so that the bubbles are repeatedly broken and dissipated by gravity, and the foam-free gas is finally discharged from the third internal thread joint 34.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A repeated diffusion foam automatic rapid separator for water electrolysis hydrogen production equipment, characterized by: The invention comprises a lower shell component (1) and an upper shell component (3), wherein the lower shell component (1) is connected and fixed to the upper shell component (3), an annular groove (2) is installed inside the lower shell component (1), and a flow guide pipe (7) is abutted in the annular groove (2), and the upper shell component (3) comprises a cylindrical shell (35), and a separation tower (6) is evenly overlapped inside the cylindrical shell (35), and the separation tower (6) comprises a fixed disk (61), and the center of the outer surface of the fixed disk (61) is integrally connected to the inner surface of the fixed disk (61). A guide tube (62) is connected, and the outer surface of the guide tube (62) is evenly provided with air outlet holes (63) and air inlet holes (64). The interior of the guide tube (62) is integrally connected with a partition (66), and the air outlet holes (63) and the air inlet holes (64) are distributed on the upper and lower sides of the partition (66). The outer side of the guide tube (62) is evenly provided with through holes (67), and the through holes (67) pass through the outer surface of the fixed plate (61), and the guide pipe (7) passes through the through holes (67).

2. The repeated diffusion foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 1, characterized in that: The lower shell assembly (1) comprises a lower shell (11), the lower shell (11) is hemispherical, and a first internal thread joint (15) is integrally connected to the center of the bottom of the lower shell (11), and a first connecting flange (12) is integrally connected to the top of the lower shell (11), a sealing groove (14) is provided on the upper surface of the first connecting flange (12), and an annular step (13) is provided on the inner wall of the first connecting flange (12).

3. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 2, characterized in that: The annular groove (2) is a U-shaped rotating body. The annular groove (2) is composed of three parts: an outer cylindrical surface (21), an annular bottom plane (22) and an inner cylindrical surface (23). The outer cylindrical surface (21) and the inner cylindrical surface (23) are integrally connected to the annular bottom plane (22). The outer cylindrical surface (21) is fixed to the outside of the annular bottom plane (22), and the inner cylindrical surface (23) is fixed to the center of the annular bottom plane (22). The height of the inner cylindrical surface (23) is smaller than the height of the outer cylindrical surface (21), and the outer periphery of the outer cylindrical surface (21) is interference-fitted with the annular step (13).

4. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 3, characterized in that: A second connecting flange (31) is fixed to the bottom end of the cylindrical shell (35), the second connecting flange (31) is abutted against the first connecting flange (12), and a connecting piece (4) is installed on the second connecting flange (31), the second connecting flange (31) is connected and fixed to the first connecting flange (12) through the connecting piece (4), the inner wall of the outer cylindrical surface (21) is tightly fitted with the inner wall of the cylindrical shell (35), the cylindrical shell (35) is cylindrical, and the top of the cylindrical shell (35) is integrally connected with a shell head (33), the shell head (33) is hemispherical, and a third internal thread joint (34) is fixed at the center of the top end of the shell head (33), and a second internal thread joint (32) is fixed to the bottom end of the cylindrical shell (35) near the top of the second connecting flange (31).

5. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 4, characterized in that: The connecting member (4) comprises an annular flange ring (41), a semi-annular flange ring (42) and a fixing bolt (43), wherein the annular flange ring (41) is annular, and the semi-annular flange ring (42) is semi-annular, the annular flange ring (41) is sleeved on the lower shell (11) and abuts against the first connecting flange (12), and the semi-annular flange ring (42) abuts against the second connecting flange (31), and the fixing bolt (43) consists of a hexagon socket bolt and a nut, and the hexagon socket bolt passes through the semi-annular flange ring (42), the second connecting flange (31), the first connecting flange (12) and the annular flange ring (41) in sequence and is fastened by the nut.

6. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 1, characterized in that: A plug (5) is inserted into the outer surface of the fixed disk (61), and the plug (5) comprises a large circular table (51), and the outer surface of the large circular table (51) is integrally connected with a small circular table (52).

7. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 4, characterized in that: The bottom periphery of the through hole (67) is surrounded by a raised edge (68), and the raised edge (68) is connected and fixed to the surface of the fixed disk (61). The top of the guide tube (62) is integrally connected with a boss (65).

8. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 7, characterized in that: The guide tubes (7) are composed of five guide tubes (7), which are arranged in a ring shape, and the lengths of the five guide tubes (7) are doubled.

9. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 8, characterized in that: The guide tube (7) comprises a tube body (71) and a waist-shaped hole (72). The tube body (71) is tubular. The top of the tube body (71) passes through the through hole (67) and is bonded and fixed to the inner wall of the raised edge (68). The bottom of the tube body (71) abuts against the annular bottom plane (22). The bottom of the tube body (71) is provided with a waist-shaped hole (72). The waist-shaped hole (72) is waist-shaped.

10. The repeated diffusion type foam automatic rapid separator for water electrolysis hydrogen production equipment according to claim 9, characterized in that: The separation tower (6) is composed of five layers. The five tube bodies (71) pass through the five layers of fixed plates (61) in sequence. The five layers of guide tubes (62) are connected end to end through bosses (65), and the bosses (65) of the top layer of guide tubes (62) are fixed by plugging into the third internal thread joint (34).

Images