阅读说明：本技术 一种氢氮双通道配气系统 (Hydrogen-nitrogen double-channel gas distribution system ) 是由 崔文朋 林宏洪 朱泽喜 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种氢氮双通道配气系统,包括混配机构、第一进气机构、第二进气机构和出气机构,混配机构由混配罐组成,混配罐内腔的中部固定连接有隔板,第一进气机构由第一氢气进气组件和第二氢气进气组件组成,第二进气机构由第一氮气进气组件和第二氮气进气组件组成,出气机构由第一混合出气组件和第二混合出气组件组成。本发明利用混配机构、第一进气机构、第二进气机构和出气机构的设置,可单次在混合机构内同时制备两种比例不同的氢氮混合气,从而有效的提高了氢氮混合气的制备效率。(The invention discloses a hydrogen-nitrogen dual-channel gas distribution system which comprises a mixing mechanism, a first gas inlet mechanism, a second gas inlet mechanism and a gas outlet mechanism, wherein the mixing mechanism is composed of a mixing tank, a partition plate is fixedly connected to the middle of an inner cavity of the mixing tank, the first gas inlet mechanism is composed of a first hydrogen gas inlet assembly and a second hydrogen gas inlet assembly, the second gas inlet mechanism is composed of a first nitrogen gas inlet assembly and a second nitrogen gas inlet assembly, and the gas outlet mechanism is composed of a first mixed gas outlet assembly and a second mixed gas outlet assembly. According to the invention, by utilizing the arrangement of the mixing mechanism, the first air inlet mechanism, the second air inlet mechanism and the air outlet mechanism, two kinds of mixed hydrogen and nitrogen gases with different proportions can be simultaneously prepared in the mixing mechanism once, so that the preparation efficiency of the mixed hydrogen and nitrogen gas is effectively improved.)

1. The utility model provides a hydrogen nitrogen binary channels gas distribution system which characterized in that includes:

the mixing mechanism consists of a mixing tank (35), and the middle part of the inner cavity of the mixing tank (35) is fixedly connected with a partition plate (36);

the first air inlet mechanism consists of a first hydrogen inlet component and a second hydrogen inlet component, and first connecting mechanisms are arranged between the first hydrogen inlet component and the mixing tank (35) and between the second hydrogen inlet component and the mixing tank (35);

the second air inlet mechanism consists of a first nitrogen air inlet assembly and a second nitrogen air inlet assembly, and second connecting mechanisms are arranged between the first nitrogen air inlet assembly and the mixing tank (35) and between the second nitrogen air inlet assembly and the mixing tank (35);

the air outlet mechanism is composed of a first mixed air outlet assembly and a second mixed air outlet assembly, and third connecting mechanisms are arranged between the first mixed air outlet assembly and the second mixed air outlet assembly and the mixing tank (35).

2. A hydrogen-nitrogen double-channel gas distribution system according to claim 1, wherein the first hydrogen inlet component comprises a first hydrogen inlet pipeline (29), and the first hydrogen inlet pipeline (29) is sequentially provided with a first stainless steel stop valve (1), a first electromagnetic valve (7), a first pressure reducing valve (9), a first Y-shaped filter (13) and a first mass flow controller (15).

3. The hydrogen-nitrogen double-channel gas distribution system according to claim 1, wherein the second hydrogen inlet component comprises a second hydrogen inlet pipeline (30), and the second hydrogen inlet pipeline (30) is sequentially provided with a fourth stainless steel stop valve (4), a second electromagnetic valve (8), a third pressure reducing valve (11), a second Y-shaped filter (14) and a second mass flow controller (16).

4. A hydrogen-nitrogen double-channel gas distribution system according to claim 1, wherein the first nitrogen gas inlet assembly comprises a first nitrogen gas inlet pipeline (31), the first nitrogen gas inlet pipeline (31) is sequentially provided with a second stainless steel stop valve (2) and a second pressure reducing valve (10), and the second pressure reducing valve (10) is connected with a first pressure switch (27).

5. The hydrogen-nitrogen double-channel gas distribution system according to claim 1, wherein the second nitrogen inlet assembly comprises a second nitrogen inlet pipeline (32), the second nitrogen inlet pipeline (32) is sequentially provided with a fifth stainless steel stop valve (5) and a fourth pressure reducing valve (12), and the fourth pressure reducing valve (12) is connected with a second pressure switch (28).

6. The hydrogen-nitrogen dual-channel gas distribution system according to claim 1, wherein the first mixed gas outlet assembly comprises a first mixed gas outlet pipeline (33), and the first mixed gas outlet pipeline (33) is sequentially provided with a first analysis pipeline, a third stainless steel stop valve (3), a first mixed gas outlet pressure gauge (21) and a first mixed gas flowmeter (23);

the first analysis pipeline is sequentially provided with a first stainless steel ball valve (17), a first fine adjustment valve (19) and a first hydrogen analyzer (25).

7. The hydrogen-nitrogen dual-channel gas distribution system according to claim 1, wherein the second mixed gas outlet assembly comprises a second mixed gas outlet pipeline (34), and the second mixed gas outlet pipeline (34) is sequentially provided with a second analysis pipeline, a sixth stainless steel stop valve (6), a second mixed gas outlet pressure gauge (22) and a second mixed gas flowmeter (24);

the second analysis pipeline is sequentially provided with a second stainless steel ball valve (18), a second fine adjustment valve (20) and a second hydrogen analyzer (26).

8. The system for distributing gas in two paths of hydrogen and nitrogen as recited in claim 1, wherein the first connecting mechanism comprises a first connecting pipe (37), the first connecting pipe (37) is fixedly inserted and connected to the top end of the mixing tank (35), and a first connecting flange (38) is arranged at the end of the first connecting pipe (37);

the second connecting mechanism comprises a second connecting pipe (39), the second connecting pipe (39) is fixedly inserted and connected to the top end of the mixing tank (35), and a second connecting flange (40) is arranged at the end part of the second connecting pipe (39);

the third connecting mechanism comprises a third connecting pipe (41), the third connecting pipe (41) is fixedly inserted and connected to the top end of the mixing tank (35), and a third connecting flange (42) is arranged at the end part of the third connecting pipe (41).

9. A hydrogen-nitrogen double-channel gas distribution system according to claim 4, wherein the first pressure switch (27), the second pressure switch (28), the first hydrogen analyzer (25) and the second hydrogen analyzer (26) are connected with a control system (43), and the control system (43) is a PLC controller.

Technical Field

The invention relates to the field of hydrogen-nitrogen gas distribution, in particular to a hydrogen-nitrogen double-channel gas distribution system.

Background

In order to reduce the use cost of high-purity gas, mixed gas can be used for replacing the high-purity gas, hydrogen-nitrogen mixed gas is common substituted mixed gas, the hydrogen-nitrogen mixed gas can be used as a protector instead of oxygen when electronic devices are produced, and can be widely applied to industries such as metallurgy, chemical industry and machinery.

Disclosure of Invention

The invention aims to provide a hydrogen-nitrogen dual-channel gas distribution system to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a hydrogen-nitrogen double-channel gas distribution system comprises:

the mixing mechanism consists of a mixing tank, and the middle part of the inner cavity of the mixing tank is fixedly connected with a partition plate;

the first air inlet mechanism consists of a first hydrogen inlet component and a second hydrogen inlet component, and first connecting mechanisms are arranged between the first hydrogen inlet component and the blending tank and between the second hydrogen inlet component and the blending tank;

the second air inlet mechanism consists of a first nitrogen air inlet assembly and a second nitrogen air inlet assembly, and second connecting mechanisms are arranged between the first nitrogen air inlet assembly and the blending tank and between the second nitrogen air inlet assembly and the blending tank;

the air outlet mechanism is composed of a first mixed air outlet assembly and a second mixed air outlet assembly, and third connecting mechanisms are arranged between the first mixed air outlet assembly and the second mixed air outlet assembly and the blending tank.

Preferably, the first hydrogen inlet assembly comprises a first hydrogen inlet pipeline, and the first hydrogen inlet pipeline is sequentially provided with a first stainless steel stop valve, a first electromagnetic valve, a first pressure reducing valve, a first Y-shaped filter and a first mass flow controller.

Preferably, the second hydrogen inlet component comprises a second hydrogen inlet pipeline, and the second hydrogen inlet pipeline is sequentially provided with a fourth stainless steel stop valve, a second electromagnetic valve, a third reducing valve, a second Y-shaped filter and a second mass flow controller.

Preferably, first nitrogen gas inlet assembly includes first nitrogen gas admission line, first nitrogen gas admission line is equipped with second stainless steel stop valve and second relief pressure valve in proper order, the second relief pressure valve is connected with first pressure switch.

Preferably, the second nitrogen air inlet assembly comprises a second nitrogen air inlet pipeline, the second nitrogen air inlet pipeline is sequentially provided with a fifth stainless steel stop valve and a fourth pressure reducing valve, and the fourth pressure reducing valve is connected with a second pressure switch.

Preferably, the first mixed gas outlet assembly comprises a first mixed gas outlet pipeline, and the first mixed gas outlet pipeline is sequentially provided with a first analysis pipeline, a third stainless steel stop valve, a first mixed gas outlet pressure gauge and a first mixed gas flowmeter;

the first analysis pipeline is sequentially provided with a first stainless steel ball valve, a first fine adjustment valve and a first hydrogen analyzer.

Preferably, the second mixed gas outlet assembly comprises a second mixed gas outlet pipeline, and the second mixed gas outlet pipeline is sequentially provided with a second analysis pipeline, a sixth stainless steel stop valve, a second mixed gas outlet pressure gauge and a second mixed gas flowmeter;

and the second analysis pipeline is sequentially provided with a second stainless steel ball valve, a second fine adjustment valve and a second hydrogen analyzer.

Preferably, the first connecting mechanism comprises a first connecting pipe, the first connecting pipe is fixedly inserted and connected to the top end of the mixing tank, and a first connecting flange is arranged at the end part of the first connecting pipe;

the second connecting mechanism comprises a second connecting pipe, the second connecting pipe is fixedly inserted and connected to the top end of the mixing tank, and a second connecting flange is arranged at the end part of the second connecting pipe;

the third connecting mechanism comprises a third connecting pipe, the third connecting pipe is fixedly inserted and connected to the top end of the mixing tank, and a third connecting flange is arranged at the end of the third connecting pipe.

Preferably, the first pressure switch, the second pressure switch, the first hydrogen analyzer and the second hydrogen analyzer are connected with a control system, and the control system is a PLC (programmable logic controller).

The invention has the technical effects and advantages that:

(1) according to the invention, by utilizing the arrangement of the mixing mechanism, the first air inlet mechanism, the second air inlet mechanism and the air outlet mechanism, two kinds of mixed hydrogen and nitrogen gases with different proportions can be simultaneously prepared in the mixing mechanism once, so that the preparation efficiency of the mixed hydrogen and nitrogen gas is effectively improved;

(2) the first hydrogen analyzer, the second hydrogen analyzer, the first pressure switch and the second pressure switch are conveniently controlled by the control system through the arrangement of the control system, so that the convenience and the safety of the operation of the first hydrogen analyzer, the second hydrogen analyzer, the first pressure switch and the second pressure switch are improved.

Drawings

Fig. 1 is a schematic structural view of a first air intake mechanism according to the present invention.

Fig. 2 is a schematic structural view of a second air intake mechanism according to the present invention.

FIG. 3 is a schematic view of the structure of the air outlet mechanism of the present invention.

FIG. 4 is a schematic diagram of a control system according to the present invention.

FIG. 5 is a schematic enlarged view of a portion A of FIG. 1 according to the present invention.

In the figure: 1. a first stainless steel shut-off valve; 2. a second stainless steel stop valve; 3. a third stainless steel stop valve; 4. a fourth stainless steel stop valve; 5. a fifth stainless steel stop valve; 6. a sixth stainless steel stop valve; 7. a first solenoid valve; 8. a second solenoid valve; 9. a first pressure reducing valve; 10. a second pressure reducing valve; 11. a third pressure reducing valve; 12. a fourth pressure reducing valve; 13. a first Y-strainer; 14. a second Y-strainer; 15. a first mass flow controller; 16. a second mass flow controller; 17. a first stainless steel ball valve; 18. a second stainless steel ball valve; 19. a first trim valve; 20. a second trim valve; 21. a first mixed gas outlet pressure gauge; 22. a second mixed gas outlet pressure gauge; 23. a first mixed gas flow meter; 24. a second mixed gas flow meter; 25. a first hydrogen analyzer; 26. a second hydrogen analyzer; 27. a first pressure switch; 28. a second pressure switch; 29. a first hydrogen inlet conduit; 30. a second hydrogen gas inlet conduit; 31. a first nitrogen inlet conduit; 32. a second nitrogen inlet conduit; 33. a first mixed gas outlet pipeline; 34. a second mixed gas outlet pipeline; 35. a blending tank; 36. a partition plate; 37. a first connecting pipe; 38. a first connecting flange; 39. a second connecting pipe; 40. a second connecting flange; 41. a third connecting pipe; 42. a third connecting flange; 43. and (5) controlling the system.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a hydrogen-nitrogen dual-channel gas distribution system as shown in figures 1-5, which comprises:

the mixing mechanism consists of a mixing tank 35, the middle part of the inner cavity of the mixing tank 35 is fixedly connected with a partition plate 36, and the inner cavity of the mixing tank 35 is divided into two parts by the partition plate 36, so that the mixing tank 35 can simultaneously prepare two hydrogen-nitrogen mixed gases with different proportions;

the first gas inlet mechanism consists of a first hydrogen inlet component and a second hydrogen inlet component, and first connecting mechanisms are arranged between the first hydrogen inlet component and the blending tank 35 and between the second hydrogen inlet component and the blending tank 35;

the second air inlet mechanism consists of a first nitrogen air inlet component and a second nitrogen air inlet component, and second connecting mechanisms are arranged between the first nitrogen air inlet component and the blending tank 35 and between the second nitrogen air inlet component and the blending tank 35;

the air outlet mechanism consists of a first mixed air outlet component and a second mixed air outlet component, and third connecting mechanisms are arranged between the first mixed air outlet component and the blending tank 35 and between the second mixed air outlet component and the blending tank 35;

the first hydrogen inlet assembly comprises a first hydrogen inlet pipeline 29, the first hydrogen inlet pipeline 29 is sequentially provided with a first stainless steel stop valve 1, a first electromagnetic valve 7, a first pressure reducing valve 9, a first Y-shaped filter 13 and a first mass flow controller 15, and the first stainless steel stop valve 1 is used for controlling the circulation of hydrogen in the first hydrogen inlet pipeline 29;

the second hydrogen inlet component comprises a second hydrogen inlet pipeline 30, and the second hydrogen inlet pipeline 30 is sequentially provided with a fourth stainless steel stop valve 4, a second electromagnetic valve 8, a third reducing valve 11, a second Y-shaped filter 14 and a second mass flow controller 16. Controlling the hydrogen circulation of the second hydrogen inlet pipeline 30 through a fourth stainless steel stop valve 4;

the first nitrogen gas inlet assembly comprises a first nitrogen gas inlet pipeline 31, the first nitrogen gas inlet pipeline 31 is sequentially provided with a second stainless steel stop valve 2 and a second pressure reducing valve 10, the second pressure reducing valve 10 is connected with a first pressure switch 27, and the second stainless steel stop valve 2 controls the circulation of nitrogen gas in the first nitrogen gas inlet pipeline 31;

the second nitrogen gas inlet assembly comprises a second nitrogen gas inlet pipeline 32, the second nitrogen gas inlet pipeline 32 is sequentially provided with a fifth stainless steel stop valve 5 and a fourth pressure reducing valve 12, the fourth pressure reducing valve 12 is connected with a second pressure switch 28, and nitrogen in the second nitrogen gas inlet pipeline 32 is controlled to circulate through the fifth stainless steel stop valve 5;

the first mixed gas outlet assembly comprises a first mixed gas outlet pipeline 33, the first mixed gas outlet pipeline 33 is sequentially provided with a first analysis pipeline, a third stainless steel stop valve 3, a first mixed gas outlet pressure gauge 21 and a first mixed gas flowmeter 23, and the third stainless steel stop valve 3 is used for controlling the circulation of the hydrogen-nitrogen mixed gas in the first mixed gas outlet pipeline 33;

the first analysis pipeline is sequentially provided with a first stainless steel ball valve 17, a first fine adjustment valve 19 and a first hydrogen analyzer 25;

the second mixed gas outlet assembly comprises a second mixed gas outlet pipeline 34, the second mixed gas outlet pipeline 34 is sequentially provided with a second analysis pipeline, a sixth stainless steel stop valve 6, a second mixed gas outlet pressure gauge 22 and a second mixed gas flowmeter 24, and the circulation of the hydrogen-nitrogen mixed gas in the second mixed gas outlet pipeline 34 is controlled through the sixth stainless steel stop valve 6;

the second analysis pipeline is sequentially provided with a second stainless steel ball valve 18, a second fine adjustment valve 20 and a second hydrogen analyzer 26;

the first connecting mechanism comprises a first connecting pipe 37, the first connecting pipe 37 is fixedly connected to the top end of the mixed tank 35 in a penetrating manner, a first connecting flange 38 is arranged at the end part of the first connecting pipe 37, the second connecting mechanism comprises a second connecting pipe 39, the second connecting pipe 39 is fixedly connected to the top end of the mixed tank 35 in a penetrating manner, a second connecting flange 40 is arranged at the end part of the second connecting pipe 39, the third connecting mechanism comprises a third connecting pipe 41, the third connecting pipe 41 is fixedly connected to the top end of the mixed tank 35 in a penetrating manner, a third connecting flange 42 is arranged at the end part of the third connecting pipe 41, the first connecting pipe 37 extends to the bottom of the mixed tank 35, and as the hydrogen quality is smaller, the hydrogen moves upwards in the mixed tank 35, and the nitrogen moves downwards, so that the hydrogen and nitrogen mixed gas is mixed more uniformly;

first pressure switch 27, second pressure switch 28, first hydrogen analyzer 25 and second hydrogen analyzer 26 are connected with control system 43, and control system 43 is the PLC controller, is convenient for control first pressure switch 27, second pressure switch 28, first hydrogen analyzer 25 and second hydrogen analyzer 26 through control system 43.

The working principle of the invention is as follows:

injecting hydrogen into a first hydrogen inlet pipeline 29 and a second hydrogen inlet pipeline 30, then injecting nitrogen into a first nitrogen inlet pipeline 31 and a second nitrogen inlet pipeline 32, wherein the hydrogen in the first hydrogen inlet pipeline 29 sequentially passes through a first stainless steel stop valve 1, a first electromagnetic valve 7, a first pressure reducing valve 9, a first Y-shaped filter 13 and a first mass flow controller 15 to enter a mixing tank 35, the nitrogen in the first nitrogen inlet pipeline 31 sequentially passes through a second stainless steel stop valve 2 and a second pressure reducing valve 10 to enter the mixing tank 35, the mixed gas is discharged through a first mixed gas outlet pipeline 33, the hydrogen in the second hydrogen inlet pipeline 30 sequentially passes through a fourth stainless steel stop valve 4, a second electromagnetic valve 8, a third pressure reducing valve 11, a second Y-shaped filter 14 and a second mass flow controller 16 to enter the mixing tank 35, and the second nitrogen in the second nitrogen inlet pipeline 32 sequentially passes through a fifth stainless steel stop valve 5 and a fourth pressure reducing valve 12 to enter the mixing tank 35 The mixed gas is discharged through a second mixed gas outlet pipe 34.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.