CN218123465U

CN218123465U - Integrated hydrogen guiding sprayer

Info

Publication number: CN218123465U
Application number: CN202222024504.XU
Authority: CN
Inventors: 任玲谊; 邱晨; 徐鑫; 祝灵斌
Original assignee: Jinhua Songbai New Energy Technology Co ltd
Current assignee: Jinhua Songbai New Energy Technology Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-23
Anticipated expiration: 2032-07-28

Abstract

The utility model discloses an integrated hydrogen gas jet-drawing device, which comprises an ejector, a hydrogen inlet pipe and a connecting piece; the hydrogen inlet pipe is provided with a hydrogen inlet channel and a hydrogen outlet, one end of the hydrogen inlet channel is communicated with the outside so as to form a hydrogen inlet for accessing hydrogen at one end of the hydrogen inlet pipe, the other end of the hydrogen inlet channel is not communicated with the outside, and the hydrogen outlet is positioned at one side of the hydrogen inlet pipe and is communicated with the hydrogen inlet channel; the ejector is provided with a hydrogen inlet nozzle, an ejection port, an ejection mixing cavity and a hydrogen outlet nozzle, and the hydrogen inlet nozzle, the ejection port and the hydrogen outlet nozzle are respectively communicated with the ejection mixing cavity; the ejector is arranged between the hydrogen inlet pipe and the ejector, and the hydrogen inlet pipe is connected with the ejector through a connecting piece. The ejector is clamped from two sides through the hydrogen inlet pipe and the ejector and is fixed through the connecting piece, so that the inlet of the ejector is communicated with the hydrogen outlet in a clamping mode, the outlet of the ejector is communicated with the hydrogen inlet nozzle in a clamping mode, and therefore the ejector is integrated, the ejector is friendly in structure and convenient to install a hydrogen fuel cell system.

Description

Integrated hydrogen guiding sprayer

Technical Field

The utility model relates to a hydrogen draws and spouts technical field, more specifically says, it relates to an integration hydrogen draws spouts ware.

Background

The core reaction component of the hydrogen fuel cell system is a hydrogen fuel electric pile, and the anode (hydrogen side) of the hydrogen fuel electric pile needs continuous hydrogen supply and hydrogen circulation.

The hydrogen pressure required by the hydrogen fuel electric pile in the power generation reaction process is 0.01-0.2 MPa, and the pressure is required to be continuously adjusted according to different power generation powers, and the pressure of the hydrogen bottle after primary pressure reduction is about 1 MPa generally, so a secondary pressure reduction device is required to maintain the internal pressure of the hydrogen fuel electric pile.

The hydrogen fuel cell stack electrochemically reacts hydrogen and oxygen to generate water and electricity, and therefore a large amount of water is generated in the process of generating electricity. Water can be attached to the surface of the reaction membrane electrode to influence the combination reaction of hydrogen and oxygen, thereby causing the power reduction and even damage of the hydrogen fuel electric pile. Therefore, a hydrogen circulation device is needed, which continuously circulates hydrogen in the hydrogen fuel cell stack, separates water through a steam-water separator and other devices in the circulation process, and discharges the hydrogen through a drain valve.

The current solution for hydrogen supply is proportional valve pressure regulation or pressure regulation using a hydrogen injector; the hydrogen circulation solution is a hydrogen circulation pump or an ejector. Most of the existing products basically comprise three independent components of control, injection and injection, and have the problems of installation on a system or matching between systems and the like.

Therefore, how to make the structure of the hydrogen supply part more compact is the technical problem to be solved by the present application.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, provide an integration hydrogen draws and spouts ware, should draw and spout the ware including sprayer and drawing and spout the ware, can accomplish the circulation of the injection of control hydrogen and hydrogen simultaneously, adopt the structure of integration, let the part more easy to assemble and better and other part cooperations.

In order to realize the purpose, the following technical scheme is provided:

an integrated hydrogen gas guiding sprayer comprises an ejector, a hydrogen inlet pipe and a connecting piece.

The hydrogen inlet pipe is provided with a hydrogen inlet channel and a hydrogen outlet, one end of the hydrogen inlet channel is communicated with the outside, so that a hydrogen inlet for accessing hydrogen is formed at one end of the hydrogen inlet pipe, the other end of the hydrogen inlet channel is not communicated with the outside, and the hydrogen outlet is positioned on one side of the hydrogen inlet pipe and communicated with the hydrogen inlet channel.

The ejector is provided with a hydrogen inlet nozzle, an ejection port, an ejection mixing cavity and a hydrogen outlet nozzle, and the hydrogen inlet nozzle, the ejection port and the hydrogen outlet nozzle are respectively communicated with the ejection mixing cavity.

The ejector is arranged between the hydrogen inlet pipe and the ejector, the hydrogen inlet pipe is connected with the ejector through a connecting piece, and the connecting piece is used for connecting an inlet of the ejector with the hydrogen outlet and connecting an outlet of the ejector with the hydrogen inlet nozzle.

To sum up, the technical scheme has the following beneficial effects: the ejector is based on the principle that the ejected gas generates a negative pressure area, and the ejected gas enters the ejection mixing cavity from the ejection port under the drive of negative pressure and is ejected from the hydrogen outlet port together after being mixed. The injection purpose can be achieved only by matching with a proportional valve or an ejector. The ejector is pressed from both sides tightly through advancing hydrogen pipe and ejector, and it is fixed through the connecting piece, make the entry and the play hydrogen mouth block intercommunication of ejector, and the export of ejector and advance hydrogen spout block intercommunication, thereby form an organic whole, this integrated design, and is friendly in structure, the hydrogen fuel cell system installation of being convenient for very much, save system space greatly, it had both been used for leading-in hydrogen to advance the hydrogen pipe, can press from both sides the ejector tightly with connecting piece and ejector cooperation again, can avoid the condition of leaking hydrogen to take place in the access & exit department of ejector.

Drawings

FIG. 1 is a schematic front view of an integrated hydrogen pilot burner;

FIG. 2 is a schematic cross-sectional view of an integrated hydrogen pilot burner;

FIG. 3 is a schematic view of a connecting groove structure of an integrated hydrogen induced diffuser;

FIG. 4 is a schematic diagram of an outer nozzle of an integrated hydrogen induced jet device;

FIG. 5 is an enlarged view of the area A of an integrated hydrogen induced eductor;

fig. 6 is a schematic view of a connection sheet structure of an integrated hydrogen induced sprayer.

Reference numerals are as follows: 10. an ejector; 11. a seal ring; 20. an ejector; 21. a hydrogen inlet nozzle; 22. an injection port; 23. injecting a mixing cavity; 24. a hydrogen outlet nozzle; 25. connecting grooves; 26. a threaded hole; 27. a convergence channel; 28. a converging nozzle; 30. a hydrogen inlet pipe; 31. a hydrogen inlet channel; 32. a hydrogen outlet; 33. a hydrogen inlet; 40. a connecting member; 41. connecting holes; 42. assembling holes; 50. an outer spray head; 51. a bypass nozzle; 60. an inboard showerhead; 61. a main nozzle; 70. a hydrogen outlet spray pipe; 71. connecting sheets; 711. a pipe orifice; 712. mounting holes; 72. and (4) connecting the pipes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 and 2, an integrated hydrogen gas guiding sprayer comprises an injector 10, an injector 20, a hydrogen inlet pipe 30 and a connecting piece 40; the hydrogen inlet pipe 30 is provided with a hydrogen inlet channel 31 and a hydrogen outlet 32, one end of the hydrogen inlet channel 31 is communicated with the outside so as to form a hydrogen inlet 33 for accessing hydrogen at one end of the hydrogen inlet pipe 30, the other end of the hydrogen inlet channel is not communicated with the outside, and the hydrogen outlet 32 is positioned at one side of the hydrogen inlet pipe 30 and is communicated with the hydrogen inlet channel 31; the ejector 20 is provided with a hydrogen inlet nozzle 21, an ejection port 22, an ejection mixing cavity 23 and a hydrogen outlet nozzle 24, and the hydrogen inlet nozzle 21, the ejection port 22 and the hydrogen outlet nozzle 24 are respectively communicated with the ejection mixing cavity 23; the ejector 10 is disposed between the hydrogen inlet pipe 30 and the ejector 20, and the hydrogen inlet pipe 30 and the ejector 20 are connected by a connecting member 40 for connecting an inlet of the ejector 10 with the hydrogen outlet 32 and connecting an outlet of the ejector 10 with the hydrogen inlet nozzle 21. The ejector 20 is used for generating a negative pressure area for ejecting gas, and the ejected gas enters the ejection mixing cavity 23 from the ejection port 22 under the drive of negative pressure and is ejected from the hydrogen outlet nozzle 24 together after being mixed. The injection purpose can be achieved only by matching with a proportional valve or an ejector 10. The ejector 10 is clamped from two sides through the hydrogen inlet pipe 30 and the ejector 20, the ejector is fixed through the connecting piece 40, the inlet of the ejector 10 is in clamping communication with the hydrogen outlet 32, the outlet of the ejector 10 is in clamping communication with the hydrogen inlet nozzle 21, the ejector is integrated, the structure is friendly, the hydrogen fuel cell system is convenient to install, the system space is greatly saved, the hydrogen inlet pipe 30 is used for guiding hydrogen, the ejector 10 can be clamped tightly through matching of the connecting piece 40 and the ejector 20, and the situation that hydrogen leaks at the inlet and outlet of the ejector 10 can be avoided.

Furthermore, one end of the connecting piece 40 is fixedly connected with the hydrogen inlet pipe 30, and the other end is connected with the ejector 20 through a bolt.

Further, as shown in fig. 2 and 3, a connection hole 41 is formed at one end of the connection member 40 connected to the injector 20, and the injector 20 is formed with a connection groove 25 into which the connection member 40 is inserted and a screw hole 26 penetrating through the connection groove 25. After the coupling member 40 is disposed in the coupling groove 25, the screw hole 26 is aligned with the coupling hole 41 and then fixed by a bolt.

Further, the connecting member 40 is provided with a plurality of assembling holes 42. The assembling holes 42 are arranged to facilitate the installation of the hydrogen gas induced sprayer to a target position through bolts, and the connecting pipe 72 not only serves as a part for connecting the hydrogen inlet pipe 30 and the injector 20, but also can serve as a fulcrum for installation, so that the integrated hydrogen gas induced sprayer is compact in structure and saves materials and space.

Further, the inlet and the outlet of the injector 10 are provided with sealing rings 11. The sealing ring 11 is made of rubber ring or other materials with sealing effect.

As another embodiment, as shown in fig. 2, the number of the ejector 10 is two, the number of the hydrogen outlets 32 and the number of the hydrogen inlets 21 corresponding to the ejector 10 are two, the ejector 20 is further provided with a converging passage 27, the two hydrogen inlets 21 are both communicated with the converging passage 27, the converging passage 27 is provided with a converging nozzle 28 at the ejector mixing cavity 23, and the converging passage 27 is communicated with the ejector mixing cavity 23 through the converging nozzle 28.

The injector 10 is provided with three or more, and the hydrogen outlets 32 and the hydrogen inlet nozzles 21 are provided in one-to-one correspondence with the injector 10. Similarly, the ejector 10 can be provided with a plurality of according to the demand, and a plurality of ejectors 10 all press from both sides in the centre through advancing hydrogen pipe 30 and ejector 20, and the export of a plurality of ejectors 10 assembles through assembling the passageway 27 and assembles spout 28 department of assembling and spout to accomplish the effect of drawing and penetrating.

As shown in fig. 4 and 5, an outer nozzle 50 and an inner nozzle 60 are provided at the converging nozzle 28, the outer nozzle 50 has a radius larger than that of the inner nozzle 60, the inner nozzle 60 is provided in the outer nozzle 50, the inner nozzle 60 communicates with the outlet of the main injector 10 to form a main nozzle 61, a bypass nozzle 51 is formed between the outer nozzle 50 and the inner nozzle 60, and the bypass nozzle 51 communicates with the converging passage 27. The ejector 20 is based on the principle that the ejected gas generates a negative pressure area, the ejected gas enters the ejection mixing cavity 23 under the drive of negative pressure and is ejected together after being mixed, and the ejection purpose can be achieved only by matching with a proportional valve or an ejector 10. In the low-power stage of the hydrogen system, the gas demand is small, so the jet flow is very small, and the purpose of hydrogen circulation cannot be achieved. According to the invention, through the arrangement of the outer side spray nozzle 50 and the inner side spray nozzle 60, the spray nozzles adopt a large-small-opening sectional control mode, the bypass spray nozzle 51 is opened in a low-power section, the opening time is prolonged, and the injection amount is increased, so that the full-power injection effect is achieved, and a hydrogen circulating pump is completely replaced.

The area of the bypass nozzle 51 is smaller than the area of the main nozzle 61. The area of the bypass nozzle 51 is smaller than that of the main nozzle 61, the auxiliary ejector 10 is started in the low-power section to eject hydrogen through the bypass nozzle 51, and because the area of the bypass nozzle 51 is small, the opening time can be prolonged, the ejection amount is increased, the full-power ejection effect is achieved, and a hydrogen circulating pump is completely replaced.

The radius of the outer spray head 50 is greater than the radius of the inner spray head 60 and less than v 2 times the radius of the inner spray head 60. When the radius of the outer nozzle 50 is equal to √ 2 times the radius of the inner nozzle 60, the area of the main nozzle 61 and the area of the bypass nozzle 51 are equal, and therefore, when the radius of the outer nozzle 50 is within the range from the radius of the inner nozzle 60 to √ 2 times the radius of the inner nozzle 60, the area of the bypass nozzle 51 is smaller than the area of the main nozzle 61.

As shown in fig. 4 and 6, the ejector 20 is provided with a detachable hydrogen outlet nozzle 70 at the hydrogen outlet nozzle 24. The hydrogen outlet nozzle 70 is connected with the ejector 20 through a bolt, the hydrogen outlet nozzle 24 with different pipe diameters can be conveniently replaced when needing to be replaced, simulation can be carried out according to different power systems and different galvanic piles, and the pipe diameter of the hydrogen outlet nozzle 70 is adjusted according to a simulation result so as to adapt to different power systems and different galvanic piles.

The hydrogen outlet nozzle 70 comprises a connecting sheet 71 and a connecting pipe 72, wherein the connecting sheet 71 is provided with a pipe orifice 711 and a plurality of mounting holes 712, and the connecting pipe 72 is arranged at the pipe orifice 711 and connected with the connecting sheet 71. The hydrogen outlet nozzle 24 of the injector 20 is provided with a threaded hole 26, and when the pipe orifice 711 of the connecting piece 71 is aligned with the hydrogen outlet nozzle 24, the mounting hole 712 is also aligned with the threaded hole 26, so that the hydrogen outlet nozzle 70 can be mounted on the injector 20 through bolts. The connecting pipe 72 of the hydrogen outlet nozzle 70 has a plurality of different aperture sizes, and the hydrogen outlet nozzle 70 with different aperture sizes can be selected according to different power systems.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. An integrated hydrogen gas jet guiding device comprises an ejector (10) and an ejector (20), and is characterized by also comprising a hydrogen inlet pipe (30) and a connecting piece (40);

the hydrogen inlet pipe (30) is provided with a hydrogen inlet channel (31) and a hydrogen outlet (32), one end of the hydrogen inlet channel (31) is communicated with the outside so that a hydrogen inlet (33) for accessing hydrogen is formed at one end of the hydrogen inlet pipe (30), the other end of the hydrogen inlet channel is not communicated with the outside, and the hydrogen outlet (32) is positioned at one side of the hydrogen inlet pipe (30) and is communicated with the hydrogen inlet channel (31);

the ejector (20) is provided with a hydrogen inlet nozzle (21), an ejection port (22), an ejection mixing cavity (23) and a hydrogen outlet nozzle (24), and the hydrogen inlet nozzle (21), the ejection port (22) and the hydrogen outlet nozzle (24) are respectively communicated with the ejection mixing cavity (23);

the ejector (10) is arranged between the hydrogen inlet pipe (30) and the ejector (20), and the hydrogen inlet pipe (30) is connected with the ejector (20) through a connecting piece (40) and used for connecting an inlet of the ejector (10) with the hydrogen outlet (32) and connecting an outlet of the ejector (10) with the hydrogen inlet nozzle (21).

2. The integrated hydrogen induced draft device according to claim 1, wherein one end of the connecting piece (40) is fixedly connected with the hydrogen inlet pipe (30), and the other end is connected with the injector (20) through a bolt.

3. The integrated hydrogen gas guiding sprayer according to claim 2, wherein one end of the connecting piece (40) connected with the injector (20) is provided with a connecting hole (41), the injector (20) is provided with a connecting groove (25) for inserting the connecting piece (40) and a threaded hole (26) penetrating through the connecting groove (25).

4. The integrated hydrogen induced sprayer according to claim 1, wherein the connecting piece (40) is provided with a plurality of assembling holes (42).

5. The integrated hydrogen pilot burner of claim 1, characterized in that the injector (10) is provided with sealing rings (11) at both the inlet and the outlet.

6. The integrated hydrogen induced-spraying device according to claim 1, wherein the number of the ejectors (10) is two, the number of the hydrogen outlets (32) and the number of the hydrogen inlets (21) are two corresponding to the number of the ejectors (10), the ejector (20) is further provided with a converging passage (27), the two hydrogen inlets (21) are both communicated with the converging passage (27), the converging passage (27) is provided with a converging nozzle (28) at the position of the injection mixing cavity (23), and the converging passage (27) is communicated with the injection mixing cavity (23) through the converging nozzle (28).

7. The integrated hydrogen induced-spraying device according to claim 6, wherein the injector (10) is provided with more than three, and the hydrogen outlet (32) and the hydrogen inlet nozzle (21) are arranged in one-to-one correspondence with the injector (10).

8. The integrated hydrogen gas eductor according to any one of claims 1-7, wherein a detachable hydrogen outlet nozzle (70) is provided at the hydrogen outlet nozzle (24) of the eductor (20).

9. The integrated hydrogen induced spraying device according to claim 8, wherein the hydrogen outlet nozzle (70) comprises a connecting sheet (71) and a connecting pipe (72), the connecting sheet (71) is provided with a nozzle (711) and a plurality of mounting holes (712), and the connecting pipe (72) is arranged at the nozzle (711) and connected with the connecting sheet (71).