CN203635089U - Self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device - Google Patents
Self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device Download PDFInfo
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- CN203635089U CN203635089U CN201320813562.9U CN201320813562U CN203635089U CN 203635089 U CN203635089 U CN 203635089U CN 201320813562 U CN201320813562 U CN 201320813562U CN 203635089 U CN203635089 U CN 203635089U
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- ventilation air
- gas
- spiral flow
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Abstract
The utility model discloses a self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device, which is applicable to mixing of coal mine drainage gas and ventilation air methane. The self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device comprises a self-priming section and a spiral flow mixing section which are sequentially connected, wherein a scaling spray pipe is arranged inside the self-priming section, a plurality of small holes are formed in the throat part of the scaling spray pipe, and a gas inlet pipe is arranged at a position, dead against the throat part of the scaling spray pipe, of the self-priming section; a stationary spiral flow disc is arranged inside the spiral flow mixing section. A sparkle phenomenon possibly occurring due to movement friction can be effectively avoided, the safety and reliability of the mixing process can be enhanced, and the mixing uniformity of the coal mine drainage gas and the ventilation air methane can be improved. The self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device is simple and compact in structure, not provided with any movement components, and capable of realizing powerless self-priming mixing operation of the drainage gas and the ventilation air methane.
Description
Technical field
The utility model relates to a kind of feeder of coal mine methane oxidation unit, is particularly useful for the device that coal extraction gas mixes with ventilation air gas, belongs to the technical field that coal extraction gas and ventilation air gas synergistic oxidation and low-density energy reclaim.
Background technology
At present, for the low concentration gas of coal extraction, the method that can effectively utilize mostly is gas internal combustion generator group and generates electricity, but gas density General Requirements used is not less than 6%, and for the extraction low concentration gas lower than 6% greatly mainly with directly emptying be main.And for the processing of coal mine wind-lack gas, current available industrialization technology comprises hot counter flow oxidation technology, catalysis counter flow oxidation technology.But on-the-spot application shows, only in ventilation air gas concentration higher than 0.5% in the situation that, the heat release of gas oxidation reaction can maintain the surface radiating of oxidation bed and the stable operation of oxidation reaction.Therefore,, if can, by concentration lower than 6% gas and the blending of ventilation air gas phase, both can realize the collaborative integrated utilization of extraction low concentration gas and ventilation air gas, can improve again the stability of oxidation unit operation.
But, in order to ensure the requirement of coal mine methane gas oxidation device safe operation, the gas density that enters oxidation unit oxidation bed will be far below the aerial explosion limit of gas, and avoid the appearance of local gas aggregation phenomenon, this uniformity of just coal extraction gas being mixed with ventilation air gas has proposed strict requirement.
Utility model content
Technical problem: the purpose of this utility model is the weak point that will overcome in prior art, provides a kind of simple in structure, easy to operate, safe and reliable coal extraction gas and ventilation air gas mixing arrangement.
Technical scheme: self-priming spiral-flow type coal extraction gas of the present utility model and ventilation air gas mixing arrangement, comprise the self-priming section and the eddy flow mixing section that connect as one through adpting flange, described self-priming section comprises circular pipe one, is located at adpting flange one and the adpting flange two at circular pipe one two ends, the inside of described circular pipe one is provided with de Laval noz(zle), in the throat of described de Laval noz(zle), have some apertures, on described circular pipe one, just the throat location of de Laval noz(zle) is provided with to gas inlet pipe, described gas inlet pipe is provided with mechanical adjustment valve; Described eddy flow mixing section comprises circular pipe two, is located at adpting flange three and the adpting flange four at circular pipe two two ends, and the inside of described circular pipe two is provided with eddy flow tray, and described eddy flow tray is fixed in circular pipe two by support.
Described support is decussate texture or three fork configurations; Described eddy flow tray is single coil configuration, double-spiral structure or triple-helix structure.
Beneficial effect: owing to having adopted technique scheme, the utility model compared with prior art tool has the following advantages:
1) self-priming spiral-flow type coal extraction gas of the present utility model and ventilation air gas mixing arrangement be containing any moving component, and the pyrophoric behavio(u)r of effectively having avoided friction of motion to occur has improved the safety and reliability of mixed process;
2) ventilation air gas reaches atmosphere speed in the throat of shaped telescopic tube, and gas pressure reduces and produces negative pressure, and coal extraction gas is automatically sucked the aperture from shaped telescopic tube throat under the effect of negative pressure, has realized the unpowered operation of mixing arrangement;
3) arranging of eddy flow tray improved the uniformity that coal extraction gas mixes with ventilation air gas.
4) simple in structure, easy to operate, safe and reliable, there is practicality widely.
Brief description of the drawings
Fig. 1 is foam maker structural representation of the present utility model.
A-A sectional structure one figure that Fig. 2 (a) is Fig. 1.
A-A sectional structure two figure that Fig. 2 (b) is Fig. 1.
Fig. 3 is the B-B sectional structure chart of Fig. 1.
In figure: I-self-priming section, II-eddy flow mixing section, 1-adpting flange one, 2-circular pipe one, 3-gas inlet pipe, 4-mechanical adjustment valve, 5-adpting flange two, 6-adpting flange three, 7-circular pipe two, 8-adpting flange four, 9-eddy flow tray, 10-de Laval noz(zle), 11-aperture, 12-throat, 13-support.
Detailed description of the invention
Below in conjunction with accompanying drawing, an embodiment of the present utility model is further described:
Self-priming spiral-flow type coal extraction gas of the present utility model and ventilation air gas mixing arrangement, mainly formed by the self-priming section I connecting as one successively through adpting flange and eddy flow mixing section II, described self-priming section I comprises circular pipe 1 and is located at adpting flange 1 and the adpting flange 25 at circular pipe one 2 two ends, the inside of described circular pipe 1 is provided with de Laval noz(zle) 10, in the throat 12 of described de Laval noz(zle) 10, have some apertures 11, on described circular pipe 1, just throat 12 positions to de Laval noz(zle) 10 are provided with gas inlet pipe 3, described gas inlet pipe 3 is provided with mechanical adjustment valve 4, described eddy flow mixing section II comprises circular pipe 27 and is located at adpting flange 36 and the adpting flange 48 at circular pipe 27 two ends, the inside of described circular pipe 27 is provided with eddy flow tray 9, and described eddy flow tray 9 is fixed by support 13 and circular pipe 27.Described support 13 can be cross as shown in Figure 2, also can be three fork-shapeds; Described eddy flow tray 9 can be single coil configuration, also can be double helix or triple-helix structure.
Claims (3)
1. a self-priming spiral-flow type coal extraction gas and ventilation air gas mixing arrangement, it is characterized in that: it comprises the self-priming section (I) and the eddy flow mixing section (II) that connect as one through adpting flange, described self-priming section (I) comprises circular pipe one (2), be located at adpting flange one (1) and the adpting flange two (5) at circular pipe one (2) two ends, the inside of described circular pipe one (2) is provided with de Laval noz(zle) (10), in the throat (12) of described de Laval noz(zle) (10), have some apertures (11), on described circular pipe one (2), just the throat to de Laval noz(zle) (10) (12) position is provided with gas inlet pipe (3), described gas inlet pipe (3) is provided with mechanical adjustment valve (4), described eddy flow mixing section (II) comprises circular pipe two (7), is located at adpting flange three (6) and the adpting flange four (8) at circular pipe two (7) two ends, the inside of described circular pipe two (7) is provided with eddy flow tray (9), and described eddy flow tray (9) is fixed in circular pipe two (7) by support (13).
2. according to claim
1described self-priming spiral-flow type coal extraction gas and ventilation air gas mixing arrangement, is characterized in that: described support (13) is decussate texture or three fork configurations.
3. according to claim
1described self-priming spiral-flow type coal extraction gas and ventilation air gas mixing arrangement, is characterized in that: described eddy flow tray (9) is single coil configuration, double-spiral structure or triple-helix structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813562.9U CN203635089U (en) | 2013-12-12 | 2013-12-12 | Self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320813562.9U CN203635089U (en) | 2013-12-12 | 2013-12-12 | Self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203635089U true CN203635089U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320813562.9U Expired - Fee Related CN203635089U (en) | 2013-12-12 | 2013-12-12 | Self-priming spiral flow type coal mine drainage gas and ventilation air methane mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203635089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623723B (en) * | 2013-12-12 | 2016-04-20 | 中国矿业大学 | A kind of self-priming spiral-flow type coal extraction gas and ventilation air gas mixing arrangement |
| CN107362704A (en) * | 2017-07-10 | 2017-11-21 | 河南柴油机重工有限责任公司 | A kind of idle air and drawing-off gas blender with concentration automatic control function |
-
2013
- 2013-12-12 CN CN201320813562.9U patent/CN203635089U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103623723B (en) * | 2013-12-12 | 2016-04-20 | 中国矿业大学 | A kind of self-priming spiral-flow type coal extraction gas and ventilation air gas mixing arrangement |
| CN107362704A (en) * | 2017-07-10 | 2017-11-21 | 河南柴油机重工有限责任公司 | A kind of idle air and drawing-off gas blender with concentration automatic control function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |