CN211098447U

CN211098447U - Intelligent automatic hydrogen-nitrogen proportioning device

Info

Publication number: CN211098447U
Application number: CN201921590758.XU
Authority: CN
Inventors: 张亮
Original assignee: Jiangsu Hongbo Gas Equipment Technology Co ltd
Current assignee: Jiangsu Hongbo Gas Equipment Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-07-28
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses an intelligent automatic hydrogen-nitrogen proportioning device, which comprises a hydrogen pressure stabilizing tank, a nitrogen pressure stabilizing tank and a mixing tank; the mixed gas detection device comprises a mixed gas tank, a nitrogen pressure stabilizing tank, a hydrogen gas pipeline, a mixed gas detection pipeline and a hydrogen analyzer, wherein the mixed gas tank is provided with a gas mixing pipeline, the nitrogen pressure stabilizing tank is communicated with the gas mixing pipeline through the nitrogen conveying pipeline, the hydrogen pressure stabilizing tank is communicated with the gas mixing pipeline through the hydrogen conveying pipeline, the mixed gas detection pipeline is connected with the mixed gas detection pipeline, and the mixed gas detection pipeline is connected with the hydrogen analyzer through a conveying pipe; the hydrogen analyzer is connected with a PID controller, and the PID controller is connected with an adjusting valve on a hydrogen conveying pipeline; the mixing tank is provided with an air outlet pipeline, and the outer end part of the air outlet pipeline is provided with an air release valve and a mixed gas discharge valve which are arranged in parallel. The utility model effectively improves the gas consumption requirement of special working conditions that the pressure and the flow of the mixed gas use point are constantly changed; the frequency of hydrogen concentration change is reduced, the time and times for artificially correcting the hydrogenation amount are saved, and the utilization rate of the mixed gas is effectively improved.

Description

Intelligent automatic hydrogen-nitrogen proportioning device

Technical Field

The utility model relates to a mixed distribution equipment of hydrogen nitrogen specifically is intelligent automatic hydrogen nitrogen proportioning device.

Background

The hydrogen-nitrogen mixing and distributing equipment is used for mixing and distributing hydrogen and nitrogen in proportion. Although the existing hydrogen-nitrogen proportioning device can meet the stability of the concentration of hydrogen in nitrogen during debugging under the state of stable pressure and stable flow, once the flow and the pressure at the use end are greatly changed, the concentration of the hydrogen in the nitrogen can be greatly changed instantly, and the use requirements of customers cannot be met. And the time for recovering the concentration stability again is long. Thus wasting much time and gas! Wasting manpower and energy. Therefore, an intelligent automatic hydrogen-nitrogen proportioning device is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides an intelligent automatic hydrogen-nitrogen proportioning device.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model discloses an intelligent automatic hydrogen-nitrogen proportioning device, which comprises a hydrogen pressure stabilizing tank, a nitrogen pressure stabilizing tank and a mixing tank; the mixing tank is provided with a gas mixing pipeline, the nitrogen pressure stabilizing tank is communicated with the gas mixing pipeline through a nitrogen conveying pipeline, the hydrogen pressure stabilizing tank is communicated with the gas mixing pipeline through a hydrogen conveying pipeline, and the nitrogen conveying pipeline is sequentially provided with a first pressure gauge, a first pneumatic valve and a first stop valve according to the sequence of passing nitrogen; the hydrogen pipeline is sequentially provided with a second stop valve, a second pneumatic valve, an adjusting valve and a third stop valve according to the passing sequence of hydrogen; a hydrogen conveying branch pipe is connected between the input end of the second stop valve and the output end of the third stop valve, and a second pressure gauge and a bypass valve are sequentially arranged on the hydrogen conveying branch pipe according to the order of hydrogen passing; the gas mixing pipeline is connected with a mixed gas detection pipeline, and the mixed gas detection pipeline comprises a hydrogen analyzer connected with the mixed gas detection pipeline through a conveying pipe; the hydrogen analyzer is connected with a PID controller, and the PID controller is connected with an adjusting valve on a hydrogen conveying pipeline; an air outlet pipeline is arranged on the mixing tank, and an air release valve and a mixed gas discharge valve which are arranged in parallel are arranged at the outer end part of the air outlet pipeline; and a flowmeter is arranged on the air outlet pipeline.

As a preferred technical scheme of the utility model, the conveyer pipe is equipped with needle valve and motorised valve in proper order according to the precedence order that the mist passed through.

As an optimal technical scheme of the utility model, the both ends of flowmeter are equipped with fourth stop valve and fifth stop valve respectively.

As an optimized technical scheme of the utility model, be equipped with the third manometer on the blending tank.

As an optimal technical scheme of the utility model, be equipped with the hydrogen admission line on the hydrogen surge tank, the hydrogen admission line is equipped with fourth manometer and first relief pressure valve according to the precedence order that hydrogen passed through in proper order.

As an optimal technical scheme of the utility model, be equipped with nitrogen gas admission line on the nitrogen gas surge tank, nitrogen gas admission line is equipped with fifth manometer and second relief pressure valve according to the precedence order that nitrogen gas passes through in proper order.

The utility model has the advantages that: 1. this kind of portable gauze mask gathers the real-time data of hydrogen analysis appearance through the PID controller, and the real-time data of hydrogen analysis appearance that gathers according to PID controls the governing valve on the hydrogen transmission pipeline, increases or reduces the flow of hydrogen, and then the hydrogen concentration in the effective control nitrogen gas makes it maintain at required concentration always. The utility model effectively improves the gas consumption requirement of special working conditions that the pressure and the flow of the mixed gas use point are constantly changed; the frequency of hydrogen concentration change is reduced, the time and times for artificially correcting the hydrogenation amount are saved, and the utilization rate of the mixed gas is effectively improved.

2. This kind of portable gauze mask, hydrogen and nitrogen gas are respectively through first relief pressure valve and second relief pressure valve, enter into in hydrogen surge tank and the nitrogen gas surge tank after the decompression to through first manometer, second manometer, third manometer and fourth manometer, be used for detecting the change of front and back pressure. The decompressed hydrogen and nitrogen gas are stored through a hydrogen pressure stabilizing tank and a nitrogen pressure stabilizing tank, then the introduction amount of the hydrogen gas is controlled by a regulating valve to be mixed, the mixed ratio of the mixed gas is detected, the matching proportion of the two gases is conveniently and accurately controlled, and the mixed gas flow after mixing flows out from a flow meter after being mixed uniformly again through a mixing tank and is used by a client.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the intelligent automatic hydrogen-nitrogen proportioning device of the utility model.

In the figure: 1. a hydrogen pressure stabilization tank; 2. a nitrogen pressure stabilizing tank; 3. a blending tank; 4. a gas mixing duct; 5. a nitrogen delivery pipeline; 6. a hydrogen delivery pipeline; 7. a first pressure gauge; 8. a first pneumatic valve; 9. a first shut-off valve; 10. a second stop valve; 11. a second pneumatic valve; 12. adjusting a valve; 13. a third stop valve; 14. a hydrogen delivery branch pipe; 15. a second pressure gauge; 16. a bypass valve; 17. a delivery pipe; 18. a hydrogen analyzer; 19. a PID controller; 20. an air outlet pipe; 21. an atmospheric valve; 22. a mixed gas discharge valve; 23. a flow meter; 24. a needle valve; 25. an electrically operated valve; 26. a fourth stop valve; 27. a fifth stop valve; 28. a third pressure gauge; 29. a hydrogen gas inlet conduit; 30. a fourth pressure gauge; 31. a first pressure reducing valve; 32. a nitrogen gas inlet pipe; 33. a fifth pressure gauge; 34. a second pressure reducing valve.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1, the intelligent automatic hydrogen-nitrogen proportioning device of the utility model comprises a hydrogen pressure stabilizing tank 1, a nitrogen pressure stabilizing tank 2 and a mixing tank 3; the mixing tank 3 is provided with a gas mixing pipeline 4, the nitrogen pressure stabilizing tank 2 is communicated with the gas mixing pipeline 4 through a nitrogen conveying pipeline 5, the hydrogen pressure stabilizing tank 1 is communicated with the gas mixing pipeline 4 through a hydrogen conveying pipeline 6, and the nitrogen conveying pipeline 5 is sequentially provided with a first pressure gauge 7, a first pneumatic valve 8 and a first stop valve 9 according to the order of passing nitrogen; the hydrogen pipeline 6 is sequentially provided with a second stop valve 10, a second pneumatic valve 11, an adjusting valve 12 and a third stop valve 13 according to the passing sequence of hydrogen; a hydrogen conveying branch pipe 14 is connected between the input end of the second stop valve 10 and the output end of the third stop valve 13, and a second pressure gauge 15 and a bypass valve 16 are sequentially arranged on the hydrogen conveying branch pipe 14 according to the passing sequence of hydrogen; a mixed gas detection pipeline is connected to the gas mixing pipeline 4, and the mixed gas detection pipeline comprises a hydrogen analyzer 18 connected through a conveying pipe 17; the hydrogen analyzer 18 is connected with a PID controller 19, and the PID controller 19 is connected with the regulating valve 12 on the hydrogen conveying pipeline 6; an air outlet pipeline 20 is arranged on the mixing tank 3, and an emptying valve 21 and a mixed gas discharge valve 22 which are arranged in parallel are arranged at the outer end part of the air outlet pipeline 20; a flowmeter 23 is arranged on the gas outlet pipeline 20. The PID controller 19 collects real-time data of the hydrogen analyzer 18, and controls the regulating valve 12 on the hydrogen pipeline 6 according to the real-time data of the hydrogen analyzer 18 collected by PID to increase or decrease the flow rate of hydrogen, thereby effectively controlling the hydrogen concentration in nitrogen to maintain the hydrogen concentration at a desired concentration. The utility model effectively improves the gas consumption requirement of special working conditions that the pressure and the flow of the mixed gas use point are constantly changed; the frequency of hydrogen concentration change is reduced, the time and times for artificially correcting the hydrogenation amount are saved, and the utilization rate of the mixed gas is effectively improved.

Wherein, the delivery pipe 17 is provided with a needle valve 24 and an electric valve 25 in sequence according to the passing sequence of the mixed gas.

Wherein, the two ends of the flow meter 23 are respectively provided with a fourth stop valve 26 and a fifth stop valve 27.

Wherein, a third pressure gauge 28 is arranged on the mixing tank 3.

The hydrogen pressure stabilizing tank 1 is provided with a hydrogen inlet pipeline 29, and the hydrogen inlet pipeline 29 is sequentially provided with a fourth pressure gauge 30 and a first pressure reducing valve 31 according to the passing sequence of hydrogen. The nitrogen pressure stabilizing tank 2 is provided with a nitrogen inlet pipeline 32, and the nitrogen inlet pipeline 32 is sequentially provided with a fifth pressure gauge 33 and a second pressure reducing valve 34 according to the passing sequence of nitrogen. The utility model discloses well hydrogen and nitrogen gas are respectively through first relief pressure valve 31 and second relief pressure valve 34, enter into hydrogen surge tank 1 and nitrogen gas surge tank 2 after the decompression in to through first manometer 7, second manometer 15, third manometer 28 and fourth manometer 30, be used for detecting the change of front and back pressure. The hydrogen and nitrogen gas after decompression are stored through the hydrogen surge tank 1 and the nitrogen surge tank 2, then the introduction amount of the hydrogen is controlled by the regulating valve 12 to be mixed, and then the mixed gas is detected through the mixing ratio of the mixed gas, so that the matching proportion of the two gases can be accurately controlled, and the mixed gas flow after mixing is uniformly mixed again and flows out of the flowmeter 23 to be used by a client.

The working principle is as follows: the hydrogen and the nitrogen respectively pass through a first pressure reducing valve 31 and a second pressure reducing valve 34, enter a hydrogen pressure stabilizing tank 1 and a nitrogen pressure stabilizing tank 2 after pressure reduction, and are used for detecting the change of the front pressure and the back pressure through a first pressure gauge 7, a second pressure gauge 15, a third pressure gauge 28 and a fourth pressure gauge 30. The hydrogen and nitrogen gas after decompression are stored through the hydrogen surge tank 1 and the nitrogen surge tank 2, then the introduction amount of the hydrogen is controlled by the regulating valve 12 to be mixed, and then the mixed gas is detected through the mixing ratio of the mixed gas, so that the matching proportion of the two gases can be accurately controlled, and the mixed gas flow after mixing is uniformly mixed again and flows out of the flowmeter 23 to be used by a client.

When the hydrogen concentration does not reach the use requirement, the PID controller 19 in the device can default to operate according to the hydrogen concentration set by use; the set hydrogen concentration is quickly (within about several tens of seconds) reached by automatically and rapidly increasing or decreasing the flow rate of hydrogen gas by controlling the regulating valve 12. When the pressure and the flow at the use end change, the device can control the regulating valve 12 to automatically and rapidly increase or decrease the flow of the hydrogen according to the change of the pressure and the flow at the back end, and rapidly (within about a few seconds) stably set the hydrogen concentration. The controller monitors the change of the hydrogen concentration in the nitrogen in real time, so that the gas concentration is constantly output, and the function of stable proportioning of the hydrogen and the nitrogen is realized.

When the rear end use point does not use the gas mixing and distributing device, and the rear end pressure reaches a certain pressure value, the device can automatically cut off two paths of gas inlet sources, and gas mixing is not carried out any more. When the mixed gas is reused at the rear end, the device can automatically detect the pressure at the rear end of the mixed gas, open the front-end gas inlet source and perform hydrogen-nitrogen mixing again, so that the requirements of full-intelligent one-key start-stop and automatic gas mixing are met.

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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The intelligent automatic hydrogen-nitrogen proportioning device comprises a hydrogen pressure stabilizing tank (1), a nitrogen pressure stabilizing tank (2) and a mixing tank (3); the method is characterized in that: a gas mixing pipeline (4) is arranged on the mixing tank (3), the nitrogen pressure stabilizing tank (2) is communicated with the gas mixing pipeline (4) through a nitrogen conveying pipeline (5), the hydrogen pressure stabilizing tank (1) is communicated with the gas mixing pipeline (4) through a hydrogen conveying pipeline (6), and a first pressure gauge (7), a first pneumatic valve (8) and a first stop valve (9) are sequentially arranged on the nitrogen conveying pipeline (5) according to the sequence of passing nitrogen; the hydrogen pipeline (6) is sequentially provided with a second stop valve (10), a second pneumatic valve (11), an adjusting valve (12) and a third stop valve (13) according to the passing sequence of hydrogen; a hydrogen conveying branch pipe (14) is connected between the input end of the second stop valve (10) and the output end of the third stop valve (13), and a second pressure gauge (15) and a bypass valve (16) are sequentially arranged on the hydrogen conveying branch pipe (14) according to the passing sequence of hydrogen; a mixed gas detection pipeline is connected to the gas mixing pipeline (4), and the mixed gas detection pipeline comprises a hydrogen analyzer (18) connected through a conveying pipe (17); the hydrogen analyzer (18) is connected with a PID controller (19), and the PID controller (19) is connected with a regulating valve (12) on the hydrogen conveying pipeline (6); an air outlet pipeline (20) is arranged on the mixing tank (3), and an air release valve (21) and a mixed gas discharge valve (22) which are arranged in parallel are arranged at the outer end part of the air outlet pipeline (20); and a flowmeter (23) is arranged on the air outlet pipeline (20).

2. The intelligent automatic hydrogen-nitrogen proportioning device of claim 1, wherein the delivery pipe (17) is provided with a needle valve (24) and an electric valve (25) in sequence according to the passing sequence of the mixed gas.

3. The intelligent automatic hydrogen-nitrogen proportioning device of claim 1, wherein a fourth stop valve (26) and a fifth stop valve (27) are respectively arranged at two ends of the flow meter (23).

4. The intelligent automatic hydrogen-nitrogen proportioning device of claim 1, wherein a third pressure gauge (28) is arranged on the mixing tank (3).

5. The intelligent automatic hydrogen-nitrogen proportioning device of claim 1, wherein a hydrogen gas inlet pipe (29) is arranged on the hydrogen gas pressure stabilizing tank (1), and a fourth pressure gauge (30) and a first pressure reducing valve (31) are sequentially arranged on the hydrogen gas inlet pipe (29) according to the passing order of hydrogen gas.

6. The intelligent automatic hydrogen-nitrogen proportioning device of claim 1, wherein the nitrogen pressure stabilizing tank (2) is provided with a nitrogen inlet pipe (32), and the nitrogen inlet pipe (32) is provided with a fifth pressure gauge (33) and a second pressure reducing valve (34) in sequence according to the passing sequence of nitrogen.