CN220186558U - Natural gas hydrogen-mixing gas device - Google Patents
Natural gas hydrogen-mixing gas device Download PDFInfo
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- CN220186558U CN220186558U CN202321946395.5U CN202321946395U CN220186558U CN 220186558 U CN220186558 U CN 220186558U CN 202321946395 U CN202321946395 U CN 202321946395U CN 220186558 U CN220186558 U CN 220186558U
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- mixing
- natural gas
- hydrogen
- rectifying
- rectifying plate
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 238000002156 mixing Methods 0.000 title claims abstract description 98
- 239000003345 natural gas Substances 0.000 title claims abstract description 63
- 239000007789 gas Substances 0.000 title claims abstract description 28
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 46
- 239000001257 hydrogen Substances 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 150000002431 hydrogen Chemical class 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The utility model provides a natural gas hydrogen-adding and mixing device which is used for uniformly mixing natural gas and hydrogen, and comprises a mixing piece, wherein the mixing piece is in a vertically arranged long cylinder shape, and a hydrogen input pipe and a natural gas input pipe are communicated with an inner cavity at the lower part of the mixing piece; the inner cavity of the upper part of the mixing piece is provided with a spiral blade and a rectifying piece, and the rectifying piece is positioned above the spiral blade; the upper end of the mixing piece is communicated with a mixed gas output pipe; the rectifying piece comprises a transverse rectifying plate and a vertical rectifying plate, the transverse rectifying plate is horizontally arranged, and the vertical rectifying plate is perpendicular to the transverse rectifying plate; a plurality of first rectifying holes and second rectifying holes are respectively formed in the transverse rectifying plate and the vertical rectifying plate in an array manner; the vertical rectifying plates are arranged on the upper side and the lower side of the transverse rectifying plate; through the tertiary mixing, the problems that most of the existing natural gas and hydrogen mixing devices are complex in structure, poor in mixing effect and the like are solved.
Description
Technical Field
The utility model relates to the technical field of gas mixing, in particular to a natural gas hydrogen-adding and mixing device.
Background
The natural gas hydrogen-adding technology is to add hydrogen with a certain volume ratio into natural gas to form hydrogen-adding natural gas, which can be conveyed through the existing natural gas pipeline, and can also be used for mixing natural gas and hydrogen before an end user along with the construction and development of long-distance hydrogen conveying pipelines in China. The hydrogen is doped into the natural gas, so that the combustion efficiency of the mixed gas can be improved, the emission of harmful gases such as carbon dioxide and the like can be reduced, the digestion capacity of the hydrogen can be improved, the energy supply stability can be improved, the energy cost can be reduced, and the smooth implementation of green energy development in China can be facilitated. Most of the existing natural gas and hydrogen mixing devices have the problems of complex structure, poor mixing effect and the like.
Disclosure of Invention
The utility model aims to provide a natural gas hydrogen-adding and mixing device, which solves the problems that most of the existing natural gas and hydrogen mixing devices have complex structures, poor mixing effects and the like.
The embodiment of the utility model is realized by the following technical scheme: the natural gas hydrogen-adding gas mixing device is used for uniformly mixing natural gas and hydrogen and comprises a mixing piece, wherein the mixing piece is in a vertically arranged long cylinder shape, and a hydrogen input pipe and a natural gas input pipe are communicated with an inner cavity at the lower part of the mixing piece;
the inner cavity of the upper part of the mixing piece is provided with a spiral blade and a rectifying piece, and the rectifying piece is positioned above the spiral blade;
the upper end of the mixing piece is communicated with a mixed gas output pipe.
Further, the rectifying piece comprises a transverse rectifying plate and a vertical rectifying plate, wherein the transverse rectifying plate is horizontally arranged, and the vertical rectifying plate is perpendicular to the transverse rectifying plate;
and a plurality of first rectifying holes and second rectifying holes are respectively formed in the transverse rectifying plate and the vertical rectifying plate in an array mode.
Further, the vertical rectifying plates are arranged on the upper side and the lower side of the transverse rectifying plates.
Further, the vertical rectifying plate positioned below is connected with the upper end of the spiral blade;
the upper end of the vertical rectifying plate positioned above is horizontally connected with a limiting ring.
Furthermore, the lower end of the mixing piece is communicated with a drain pipe.
Further, the hydrogen input pipe is positioned above the natural gas input pipe.
Further, the hydrogen input pipe horizontally extends into the inner cavity of the mixing piece and is connected with the inner cavity wall of the mixing piece in a sealing way;
the hydrogen input pipe is positioned at the bottom of the inner cavity part of the mixing piece and is uniformly provided with a plurality of air holes.
Further, the natural gas input pipe is horizontally communicated with the mixing piece, and natural gas in the natural gas input pipe enters the mixing piece tangentially.
Further, the spiral blade is formed by sequentially connecting a plurality of spiral torsion blades, and the adjacent spiral torsion blades are welded by 180 degrees in a staggered mode.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
1. after the natural gas tangentially enters the mixing piece, the natural gas spirally rises in the mixing piece, meanwhile, the hydrogen inlet connecting pipe stretches into the mixing piece, a plurality of air holes are uniformly formed in the lower part of the internal connecting pipe, and the hydrogen is sprayed downwards along the air holes and mixed with the rotationally-rising natural gas in the first stage.
2. The mixed gas of the hydrogen and the natural gas which are primarily mixed can continuously change the flowing state of the mixed gas and the composition mixing degree of the mixed gas through the spiral blade, and the mixing of the hydrogen and the natural gas is the second stage mixing.
3. The mixed gas coming out of the helical blade is usually rotated, the air flow is regulated and disturbed again through the first rectifying hole and the second rectifying hole, the uniformity degree of mixing is increased, the air flow beam passing through the first rectifying hole and the second rectifying hole is small, the surface area is large, the mixing effect is improved, and then the third-stage mixing of the hydrogen and the natural gas is completed. In sum, this device simple structure, it is effectual to mix, has solved current natural gas and hydrogen mixing arrangement and has mostly had the structure complicacy, mix the not good scheduling problem of effect.
4. The vertical rectifying plate that is located the below is connected with helical blade upper end, and the vertical rectifying plate that is located the top simultaneously goes out the joint with mixing element and gas mixture output tube connection, and helical blade and mixing element periphery keep 5mm clearance with the mixing element inner chamber, are convenient for take helical blade and mixing element out wholly, are convenient for take out wholly and wash and overhaul.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a natural gas hydrogen blending device according to the present utility model;
FIG. 2 is a schematic structural diagram of a rectifying member in a natural gas-loading gas mixing device according to the present utility model;
FIG. 3 is a schematic view of the structure of section A-A of FIG. 1;
icon: 1. mixing piece, 2, hydrogen input pipe, 21, gas pocket, 3, natural gas input pipe, 4, helical blade, 41, helical torsion blade, 5, rectifier, 51, horizontal rectification board, 511, first rectification hole, 52, vertical rectification board, 521, second rectification hole, 53, spacing ring, 6, mixed gas output pipe, 7, blow off pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, the present embodiment provides a natural gas hydrogen-adding and mixing device for uniformly mixing natural gas and hydrogen, which includes a mixing element 1, wherein the mixing element 1 is in a vertically arranged long cylinder shape, and a hydrogen input pipe 2 and a natural gas input pipe 3 are arranged in the lower part of the inner cavity of the mixing element 1 in a communicating manner; the mixing element 1 provides a closed space for mixing hydrogen and natural gas.
As shown in fig. 1 and 3, the hydrogen input pipe 2 is located above the natural gas input pipe 3; the hydrogen input pipe 2 horizontally extends into the inner cavity of the mixing piece 1 and is in sealing connection with the inner cavity wall of the mixing piece 1; the bottom of the hydrogen input pipe 2, which is positioned at the inner cavity part of the mixing piece 1, is uniformly provided with a plurality of air holes 21. The natural gas input pipe 3 is horizontally communicated with the mixing piece 1, natural gas in the natural gas input pipe 3 tangentially enters the mixing piece 1, and after the natural gas tangentially enters, the natural gas spirally rises in the mixing piece 1.
During specific implementation, the inlet end of the hydrogen inlet connecting pipe 2 is connected with an external system pipeline conveniently by adopting a flange, the hydrogen inlet connecting pipe 2 stretches into the mixing piece 1, the lower part of the internal connecting pipe is uniformly provided with a plurality of air holes 21, and hydrogen is sprayed downwards along the plurality of air holes 21 to be mixed with the rotationally-ascending natural gas in the first stage.
More specifically, a spiral blade 4 and a rectifying piece 5 are arranged in the inner cavity of the upper part of the mixing piece 1, the rectifying piece 5 is positioned above the spiral blade 4, the spiral blade 4 is formed by sequentially connecting a plurality of spiral torsion blades 41, the adjacent spiral torsion blades 41 are welded by 180 degrees in a staggered way, and when mixed gas passes through the adjacent spiral torsion blades, the mixed gas is forced to turn, so that the gas is mixed again in a mess; the initially mixed hydrogen and natural gas mixture can continuously change the flow state of the mixture and the composition mixing degree of the mixture when passing through the spiral blade 4, and the mixing of the hydrogen and the natural gas is the second stage.
As shown in fig. 1 and 2, the rectifying member 5 includes a lateral rectifying plate 51 and a vertical rectifying plate 52, the lateral rectifying plate 51 being disposed horizontally, the vertical rectifying plate 52 being disposed vertically to the lateral rectifying plate 51; a plurality of first rectifying holes 511 and second rectifying holes 521 are respectively formed in the transverse rectifying plate 51 and the vertical rectifying plate 52 in an array manner; vertical rectifying plates 52 are provided on both upper and lower sides of the lateral rectifying plate 51.
In specific implementation, the mixed gas from the helical blade 4 is usually rotated, the air flow is adjusted and disturbed again through the first rectifying hole 511 and the second rectifying hole 521, the uniformity degree of mixing is increased, the air flow beam passing through the first rectifying hole 511 and the second rectifying hole 521 is small, the surface area is large, the mixing effect is improved, and then the third-stage mixing of the hydrogen and the natural gas is completed.
As shown in fig. 1, the upper end of the mixing member 1 is provided with a mixed gas output pipe 6 in communication, and the mixed gas mixed in three stages is discharged from the mixed gas output pipe 6.
As shown in fig. 1, the lower end of the mixing piece 1 is communicated with a drain pipe 7, the natural gas hydrogen-adding gas mixing device is vertically arranged, namely, the mixing piece 1 is vertically arranged, impurities and moisture in natural gas and hydrogen are gradually separated and settled to the bottom in the gas mixing process, and are discharged through the bottom discharge drain pipe 7, so that the safe operation of downstream equipment is effectively ensured.
As shown in fig. 1, in the implementation, the vertical rectifying plate 52 located below is connected with the upper end of the helical blade 4, and meanwhile, the vertical rectifying plate 52 located above is clamped with the flange connection part of the mixing element 1 and the mixed gas output pipe 6 through a limiting ring 53, so that the helical blade 4, the transverse rectifying plate 51 and the vertical rectifying plate 52 keep a gap of 5mm with the inner cavity of the mixing element 1, the helical blade 4 and the rectifying element 5 are conveniently drawn out integrally, and the whole drawing is convenient for cleaning and overhauling.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The natural gas hydrogen-adding gas mixing device is used for uniformly mixing natural gas and hydrogen and is characterized by comprising a mixing piece (1), wherein the mixing piece (1) is in a vertically arranged long cylinder shape, and a hydrogen input pipe (2) and a natural gas input pipe (3) are communicated with an inner cavity of the lower part of the mixing piece (1);
a helical blade (4) and a rectifying piece (5) are arranged in the inner cavity of the upper part of the mixing piece (1), and the rectifying piece (5) is positioned above the helical blade (4);
the upper end of the mixing piece (1) is communicated with a mixed gas output pipe (6).
2. A natural gas hydrogen blending device according to claim 1, wherein the rectifying member (5) comprises a lateral rectifying plate (51) and a vertical rectifying plate (52), the lateral rectifying plate (51) being horizontally arranged, the vertical rectifying plate (52) being arranged perpendicular to the lateral rectifying plate (51);
a plurality of first rectifying holes (511) and second rectifying holes (521) are respectively formed in the transverse rectifying plate (51) and the vertical rectifying plate (52) in an array mode.
3. A natural gas hydrogen blending device according to claim 2, wherein the vertical rectifying plates (52) are provided on both upper and lower sides of the lateral rectifying plate (51).
4. A natural gas hydrogen blending device according to claim 3, wherein the vertical rectifying plate (52) located below is connected to the upper end of the helical blade (4);
the upper end of the vertical rectifying plate (52) positioned above is horizontally connected with a limiting ring (53).
5. A natural gas hydrogen-blending device according to any of claims 1-4, wherein the lower end of the mixing member (1) is provided with a drain pipe (7) in communication.
6. A natural gas hydrogen blending device according to claim 5, wherein the hydrogen gas input pipe (2) is located above the natural gas input pipe (3).
7. A natural gas hydrogen blending device according to claim 6, wherein the hydrogen gas input tube (2) extends horizontally into the interior cavity of the mixing member (1) and is sealingly connected to the interior cavity wall of the mixing member (1);
the hydrogen input pipe (2) is positioned at the bottom of the inner cavity part of the mixing piece (1) and is uniformly provided with a plurality of air holes (21).
8. A natural gas hydrogen blending device according to claim 7, wherein the natural gas inlet pipe (3) is in horizontal communication with the mixing member (1), and wherein natural gas in the natural gas inlet pipe (3) enters tangentially into the mixing member (1).
9. A natural gas hydrogen blending device according to claim 4, wherein the spiral blade (4) is formed by sequentially connecting a plurality of spiral torsion blades (41), and adjacent spiral torsion blades (41) are welded by 180 degrees in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321946395.5U CN220186558U (en) | 2023-07-21 | 2023-07-21 | Natural gas hydrogen-mixing gas device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321946395.5U CN220186558U (en) | 2023-07-21 | 2023-07-21 | Natural gas hydrogen-mixing gas device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220186558U true CN220186558U (en) | 2023-12-15 |
Family
ID=89110391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321946395.5U Active CN220186558U (en) | 2023-07-21 | 2023-07-21 | Natural gas hydrogen-mixing gas device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220186558U (en) |
-
2023
- 2023-07-21 CN CN202321946395.5U patent/CN220186558U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 402, No. 1 Cuiying Street, Nansha District, Guangzhou City, Guangdong Province 511458, self-made room 056 Patentee after: Guangdong Haien Energy Technology Co.,Ltd. Address before: Room 402, No. 1 Cuiying Street, Nansha District, Guangzhou City, Guangdong Province 511458, self-made room 056 Patentee before: Guangzhou Hain Energy Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |