CN202187794U - Gas drainage diluting and mixing demister - Google Patents
Gas drainage diluting and mixing demister Download PDFInfo
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- CN202187794U CN202187794U CN2011203086805U CN201120308680U CN202187794U CN 202187794 U CN202187794 U CN 202187794U CN 2011203086805 U CN2011203086805 U CN 2011203086805U CN 201120308680 U CN201120308680 U CN 201120308680U CN 202187794 U CN202187794 U CN 202187794U
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- demister
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Abstract
The utility model relates to a gas drainage diluting and mixing demister, comprising a shell, an inlet tube and an expansion tube. The inlet tube is a bended tube which is 90 degrees and the outlet end is arranged outside the shell. A straight section close to the inlet penetrates through the shell and the straight section close to the outlet is arranged inside the shell and connected with the expansion tube to face the outlet end of the shell. The gas drainage diluting and mixing demister is further provided with a spiral vane, a flow baffle ring, a reinforced rib, a flow guide groove, a flow guide tube, a water sealing groove and a flow guide cone. The flow guide cone is located inside the expansion tube with the point turning back to the outlet of the expansion tube. The expansion tube, the shell and the flow guide cone are connected through the reinforced rib. The axis of the straight tube section, the expansion tube and the flow guide cone are located at the axis of the shell. The inner spiral vane is fixed in the straight tube section at the outlet end of the inlet tube. The flow guide groove is arranged on the lower tube wall of the inlet tube and the flow guide tube is arranged at the rear end of the flow guide groove and inserted into the water sealing groove from the shell. The flow baffle ring is fixed on the inner wall of the inlet tube and located at one side of the expansion tube. The utility model has the advantages of dehumidification, heat conduction, safe protection and low transmission energy consumption and the like.
Description
Technical field
The utility model relates to the air feed equipment of coal mine methane gas oxidation device; Be particularly related to a kind of mash gas extraction of coal mine methane gas oxidation device and the diluted mixture demister of ventilation air gas or air, belong to super low concentration methane thermal counter flow oxidation and low-density technical field of energy recovery.
Background technology
The about 49Mt of methane content that mines in the global range and discharge every year accounts for about 9% of the interior discharge of methane total amount of global range.The concentration of methane in atmosphere is in each greenhouse gases fastest-rising one, and because of its strong greenhouse effect, the discharging of methane must receive effective control.The annual mash gas extraction of China is about billion cubic meter more than 50.The mash gas extraction that wherein utilizes only accounts for 1/4～1/3, and all the other all are in emptying state.Particularly concentration is lower than 8% low concentration mash gas extraction and can't carries out civilian or generating utilizes, and has only emptying.These methane that are discharged to the atmosphere not only cause serious atmosphere pollution, and have greatly wasted the energy.
The hot counter flow oxidation device of coal mine methane is the advanced technology that super low concentration methane is utilized, and can carry out the oxidation utilization in the oxidation unit with sending into behind mash gas extraction and air or the coal mine wind-lack gas mixed diluting.In order to guarantee the coal mine methane gas oxidation device safe operation, in general the methane gas concentration that requires to get into the oxidation unit oxidation bed will be less than 1.5% well below the explosion limit of gas, local overrich phenomenon can not occur.Colliery mash gas extraction diluted mixture demister is the critical component that guarantees mash gas extraction and air or coal mine wind-lack gas mixing uniformity in this oxidation unit, can make methane concentration and be 0.3%～1.2% even gaseous mixture.Gas in course of conveying in order to prevent the blast that produces fire by friction; Thin water mist spray cooling commonly used, and adopt the wet type spark arrester to guarantee the safety of oxidation unit, thus gas when arriving device portal humidity very big; Have influence on next step oxidation utilization in device; The diluted mixture demister can carry out gas-water separation to mash gas extraction, and the dehumidifying water conservancy diversion guarantees the drying after gas gets into oxidation unit.The quality of diluted mixture demister performance influences stability, economy and the safety of methane conversion, device to a great extent.
Patent " oxidation unit Device in Gas blending gas handling system " (CN200920025062.2) in; The person in charge of gas blender and looped pipeline design more complicated; And get into the gas air inlet person in charge from very thin looped pipeline in 360 ° of scopes of the methane gas of high concentration, increased the danger that high concentration gas and wall friction are blasted.Patent " blender of colliery mash gas extraction and ventilation air gas " (CN201010274136.3) in, the circular cone tail pipe that the complex structure of blender and its are uniformly distributed with the gas induction tunnel of aperture can bring very big flow resistance, increases the energy consumption transport gas.And above patent all not to the dehumidify function of water conservancy diversion of mash gas extraction, is not also seen the gas diluted mixture demister that has structure and performance all fairly perfect at present.
The utility model content
The purpose of the utility model provides and a kind ofly can overcome above-mentioned defective; Remedy the deficiency of existing coal mine methane gas oxidation device supply technology; Providing a kind of mixes mash gas extraction, ventilation air gas or even air; Be reduced to safe concentration, and carry out the mash gas extraction diluted mixture demister of carbonated drink separation and dehumidifying water conservancy diversion.Its technical scheme is:
A kind of mash gas extraction diluted mixture demister; The housing and the gas induction tunnel that comprise tubulose, gas induction tunnel comprise inlet tube and the convergent divergent channel that is installed in the inlet tube port of export, and wherein inlet tube is that 90 ° of bend pipes, arrival ends are arranged on outside the housing; Inlet tube vertically penetrates in the housing, is horizontally set in the housing near the straight length of the port of export near the straight length of arrival end; Link to each other with convergent divergent channel and towards the port of export of housing, it is characterized in that: set up internal helical blades, baffle ring, reinforcing rib, guiding gutter, mozzle, water sealed tank and deflection cone, deflection cone is a cone structure; Be positioned at convergent divergent channel, the tip port of export of convergent divergent channel dorsad; Be fixedly connected through reinforcing rib between convergent divergent channel, housing and the deflection cone, inlet tube is positioned at the axle center of housing near the axis of straight length, convergent divergent channel and the deflection cone of the port of export, and internal helical blades is fixed in the straight length of the port of export of inlet tube; The bottom of the straight horizontal line segment of inlet tube is provided with downward-sloping guiding gutter; The end of guiding gutter terminates in the front end of the inlet tube port of export, and the end of guiding gutter is provided with mozzle, and mozzle passes and insert in the water sealed tank from housing; The baffle ring is fixed on the inwall of inlet tube around inlet tube, and is positioned at the side of mozzle near convergent divergent channel.
Described mash gas extraction diluted mixture demister, the caliber of housing and inlet tube is constant, and convergent divergent channel adopts the gradually big reducer pipe of internal diameter, expansion angle between 30 ° to 90 °, and the discharge area of convergent divergent channel is between the 50%-80% of housing sectional area.
Described mash gas extraction diluted mixture demister, the axial distance between the elbow of inlet tube to the convergent divergent channel port of export is not less than 6 times of inlet tube caliber.
Described mash gas extraction diluted mixture demister, the axial distance between the port of export of convergent divergent channel and the housing port of export is not less than 2 times of housing caliber.
Described mash gas extraction diluted mixture demister, the welded of internal helical blades are fixed on the straight length inner tubal wall of inlet tube near the port of export, internal diameter is zero, external diameter is identical with the internal diameter of inlet tube, and the rotating cycle of internal helical blades encloses greater than 1.
Described mash gas extraction diluted mixture demister, guiding gutter length is greater than 1.5 times of internal helical blades length, and guiding gutter has downward 5 ° to 30 ° angle of inclination.
Described mash gas extraction diluted mixture demister, the welded of baffle ring be fixed on the straight length inner tubal wall of inlet tube near the port of export, highly be 1/10 to 1/5 of inlet tube caliber.
Described mash gas extraction diluted mixture demister, mozzle insert the interior degree of depth of water sealed tank above 0.5 meter.
Described mash gas extraction diluted mixture demister, housing and upstream and downstream pipeline welding, inlet gas is air or ventilation air gas, inlet tube inlet and upstream line welding, inlet gas is a mash gas extraction.
The utility model compared with prior art, its advantage is:
1. internal helical blades makes the inboard high concentration gas gas of convergent divergent channel outlet that tangential swirl speed arranged; The centrifugal force that tangential rotation produces helps the high concentration gas of center is transported to periphery, air or the coal mine methane gas that makes the inboard mash gas extraction and the outside the very short time and apart from reach and mix.
2. internal helical blades makes the very big mash gas extraction gas of humidity in the inlet tube produce tangential swirl speed; Centrifugal force gets rid of the drop in the methane gas to the inlet tube inwall; And in the action of gravity lower edge tube wall confluxes to guiding gutter downwards, thereby realize gas-water separation, guarantee the drying property of high concentration gas gas; The longer abundant collection that then helps the tube wall water droplet more of the length of guiding gutter, the baffle ring in guiding gutter downstream can stop wall water droplet migrated downstream.
3. this mixing demister can be installed on the entrance pipe of air-introduced machine; Utilize pipeline negative pressure suction mash gas extraction; Convergent divergent channel makes pipe gas flow rate interior and that pipe is outer draw back gap simultaneously, and the mash gas extraction flow velocity in air outside the pipe or the coal mine methane gas flow rate ratio pipe is high, has ejector action to managing interior mash gas extraction; Reduce the conveying power consumption of mash gas extraction, reduced the cost of improvement on Ventilation System under the coal mine.
4. mash gas extraction is introduced from the pipeline center, and air or ventilation air gas are introduced from pipeline is peripheral, and near the gas density before mixing the wall is very low, has avoided the danger of high local concentrations methane gas and wall friction blast.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is that A embodiment illustrated in fig. 1 is to view.
Fig. 3 is a B-B sectional view embodiment illustrated in fig. 1.
Among the figure: 1, housing 2, reinforcing rib 3, deflection cone 4, convergent divergent channel 5, mozzle 6, internal helical blades 7, guiding gutter 8, inlet tube 9, baffle ring 10, water sealed tank
The specific embodiment
In the embodiment shown in Fig. 1-3: the housing 1, gas induction tunnel, internal helical blades 6, baffle ring 9, reinforcing rib 2, guiding gutter 7, mozzle 5, water sealed tank 10 and the deflection cone 3 that comprise tubulose; The gas induction tunnel comprises inlet tube 8 and the convergent divergent channel 4 that is installed in inlet tube 8 ports of export; Wherein inlet tube 8 is that 90 ° of bend pipes, arrival ends are arranged on outside the housing 1; Inlet tube 8 vertically penetrates in the housing 1, is horizontally set in the housing 1 near the straight length of the port of export near the straight length of arrival end, links to each other with convergent divergent channel 4 and towards the port of export of housing 1; Deflection cone 3 is a cone structure; Be positioned at convergent divergent channel 4, the tip port of export of convergent divergent channel 4 dorsad; Be fixedly connected through reinforcing rib 2 between convergent divergent channel 4, housing 1 and the deflection cone 3, inlet tube 8 is positioned at the axle center of housing 1 near the axis of straight length, convergent divergent channel 4 and the deflection cone 3 of the port of export, and internal helical blades 6 is fixed in the straight length of the port of export of inlet tube 8; The bottom of the straight horizontal line segment of inlet tube 8 is provided with downward-sloping guiding gutter 7; The end of guiding gutter 7 terminates in the front end of inlet tube 8 ports of export, and the end of guiding gutter 7 is provided with mozzle 5, and mozzle 5 passes and inserts in the water sealed tank 10 from housing 1; Baffle ring 9 is fixed on the inwall of inlet tube 8 around inlet tube 8, and is positioned at the side of mozzle 5 near convergent divergent channel 4.
The caliber of housing 1 and inlet tube 8 is constant, and it is 60 ° that convergent divergent channel 4 adopts gradually big reducer pipe, the expansion angle of internal diameter, and the discharge area of convergent divergent channel 4 is 65% of housing 1 sectional areas; Axial distance between the elbow of inlet tube 8 to convergent divergent channel 4 ports of export is 8 times of inlet tube 8 calibers; Axial distance between the port of export of convergent divergent channel 4 and housing 1 port of export is 3 times of housing 1 caliber; It is 2 times of internal helical blades 6 length that guiding gutter 7 has 15 ° angle of inclination, length; The welded of stream ring 9 is fixed on the straight length inner tubal wall of inlet tube 8 near the port of export, highly be 1/8 of inlet tube 8 calibers; The welded of internal helical blades 6 is fixed on the straight length inner tubal wall of inlet tube 8 near the port of export, internal diameter is zero, external diameter is identical with the internal diameter of inlet tube 8, and the rotating cycle of internal helical blades 6 is 2 to enclose; The degree of depth that mozzle 5 inserts in the water sealed tank 10 is 0.8 meter.
Housing 1 and upstream and downstream pipeline welding, inlet gas is a ventilation air gas, inlet tube 8 inlets and upstream line welding, inlet gas is a mash gas extraction.
Claims (9)
1. mash gas extraction diluted mixture demister; The housing (1) and the gas induction tunnel that comprise tubulose; The gas induction tunnel comprises inlet tube (8) and is installed in the convergent divergent channel (4) of inlet tube (8) port of export; Wherein inlet tube (8) is that 90 ° of bend pipes, arrival ends are arranged on outside the housing (1), and inlet tube (8) vertically penetrates in the housing (1), is horizontally set in the housing (1) near the straight length of the port of export near the straight length of arrival end, links to each other with convergent divergent channel (4) and towards the port of export of housing (1); It is characterized in that: set up internal helical blades (6), baffle ring (9), reinforcing rib (2), guiding gutter (7), mozzle (5), water sealed tank (10) and deflection cone (3); Deflection cone (3) is a cone structure, is positioned at convergent divergent channel (4), the tip port of export of convergent divergent channel (4) dorsad, is fixedly connected through reinforcing rib (2) between convergent divergent channel (4), housing (1) and the deflection cone (3); Inlet tube (8) is positioned at the axle center of housing (1) near the axis of straight length, convergent divergent channel (4) and the deflection cone (3) of the port of export; Internal helical blades (6) is fixed in the straight length of the port of export of inlet tube (8), and the bottom of the straight horizontal line segment of inlet tube (8) is provided with downward-sloping guiding gutter (7), and the end of guiding gutter (7) terminates in the front end of inlet tube (8) port of export; The end of guiding gutter (7) is provided with mozzle (5); Mozzle (5) passes and inserts in the water sealed tank (10) from housing (1), and baffle ring (9) is fixed on the inwall of inlet tube (8) around inlet tube (8), and is positioned at the side of mozzle (5) near convergent divergent channel (4).
2. mash gas extraction diluted mixture demister as claimed in claim 1; It is characterized in that: the caliber of housing (1) and inlet tube (8) is constant; Convergent divergent channel (4) adopts the gradually big reducer pipe of internal diameter, expansion angle between 30 ° to 90 °, and the discharge area of convergent divergent channel (4) is between the 50%-80% of housing (1) sectional area.
3. mash gas extraction diluted mixture demister as claimed in claim 1 is characterized in that: the axial distance between elbow to convergent divergent channel (4) port of export of inlet tube (8) is not less than 6 times of inlet tube (8) caliber.
4. mash gas extraction diluted mixture demister as claimed in claim 1 is characterized in that: the axial distance between the port of export of convergent divergent channel (4) and housing (1) port of export is not less than 2 times of housing (1) caliber.
5. mash gas extraction diluted mixture demister as claimed in claim 1; It is characterized in that: the welded of internal helical blades (6) is fixed on the straight length inner tubal wall of inlet tube (8) near the port of export, internal diameter is zero, external diameter is identical with the internal diameter of inlet tube (8), and the rotating cycle of internal helical blades (6) encloses greater than 1.
6. mash gas extraction diluted mixture demister as claimed in claim 1 is characterized in that: guiding gutter (7) length is greater than 1.5 times of internal helical blades (6) length, and guiding gutter (7) has downward 5 ° to 30 ° angle of inclination.
7. mash gas extraction diluted mixture demister as claimed in claim 1 is characterized in that: the welded of baffle ring (9) is fixed on the straight length inner tubal wall of inlet tube (8) near the port of export, highly is 1/10 to 1/5 of inlet tube (8) caliber.
8. mash gas extraction diluted mixture demister as claimed in claim 1 is characterized in that: mozzle (5) inserts the interior degree of depth of water sealed tank (10) above 0.5 meter.
9. mash gas extraction diluted mixture demister as claimed in claim 1 is characterized in that: housing (1) and upstream and downstream pipeline welding, and inlet gas is air or ventilation air gas, inlet tube (8) inlet and upstream line welding, inlet gas is a mash gas extraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203086805U CN202187794U (en) | 2011-08-23 | 2011-08-23 | Gas drainage diluting and mixing demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203086805U CN202187794U (en) | 2011-08-23 | 2011-08-23 | Gas drainage diluting and mixing demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202187794U true CN202187794U (en) | 2012-04-11 |
Family
ID=45919253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203086805U Withdrawn - After Issue CN202187794U (en) | 2011-08-23 | 2011-08-23 | Gas drainage diluting and mixing demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202187794U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322287A (en) * | 2011-08-23 | 2012-01-18 | 山东理工大学 | Mash gas extraction diluted mixture demister |
| CN102628370A (en) * | 2012-04-18 | 2012-08-08 | 丁汀 | Mobile natural ventilation and gas collecting device for underground mine |
| CN110126523A (en) * | 2019-06-29 | 2019-08-16 | 保定卓沐园林绿化工程有限公司 | A kind of stone-material carving machine |
-
2011
- 2011-08-23 CN CN2011203086805U patent/CN202187794U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322287A (en) * | 2011-08-23 | 2012-01-18 | 山东理工大学 | Mash gas extraction diluted mixture demister |
| CN102628370A (en) * | 2012-04-18 | 2012-08-08 | 丁汀 | Mobile natural ventilation and gas collecting device for underground mine |
| CN110126523A (en) * | 2019-06-29 | 2019-08-16 | 保定卓沐园林绿化工程有限公司 | A kind of stone-material carving machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120411 Effective date of abandoning: 20130619 |
|
| RGAV | Abandon patent right to avoid regrant |