CN202194700U - Tail gas emission post-treatment device for well site diesel engine - Google Patents
Tail gas emission post-treatment device for well site diesel engine Download PDFInfo
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- CN202194700U CN202194700U CN201120297497XU CN201120297497U CN202194700U CN 202194700 U CN202194700 U CN 202194700U CN 201120297497X U CN201120297497X U CN 201120297497XU CN 201120297497 U CN201120297497 U CN 201120297497U CN 202194700 U CN202194700 U CN 202194700U
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- diesel engine
- corona discharge
- discharge electrode
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- cylindrical shell
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Abstract
The utility model discloses a well site diesel engine exhaust emission after treatment device, including cyclone casing, inside blast pipe, corona utmost point frame and corona utmost point prickle, the cyclone casing includes the cylinder casing on upper portion and the lower part awl section of thick bamboo casing as an organic whole with the cylinder casing, and it has the air inlet to open on the cylinder casing, and inside blast pipe one end and outside aiutage intercommunication, the other end stretch into in the corona utmost point frame, and corona utmost point frame setting just is connected with insulating terminal in the cyclone casing, and corona utmost point prickle distributes on the wall and the outer wall of corona utmost point frame. The utility model discloses particulate matter and nitrogen oxide in the diesel engine exhaust emission can be reduced, the normal operating of diesel engine can also not be influenced.
Description
Technical field
When the utility model relates to the post-treatment procedures that is used for the oil field welldrilling diesel engine vent gas, reduce the drilling well of exhaust pollutant discharging and use the exhaust emissions of diesel engine after-treatment device.
Background technique
In the oil drilling construction operation, the diesel engine power equipment that is absolutely necessary, it not only provides electric power such as illumination, office, and provides enough energy to realize drillng operation.But the tail gas of diesel emission pollutes the environment and personnel is caused certain injury, and the discharging if diesel engine vent gas exceeds standard is quite serious to the pollution meeting of environment, causes rugged environment variations such as acid rain.Thereby; In the prior art; Chinese patent number " 96121908.4 " discloses the diesel engine exhaust particle collection device of particle in a kind of collection diesel engine exhaust that is used under automatically controlled; Its open day is on August 20th, 1997, and this device has a needle electrode, a passive electrode and a high-voltage power.This needle electrode has a needle point, and this needle point makes particle charged by means of the coronal discharge that around it, forms, and this passive electrode is used for collecting those charged particles by electrostatic force; This high-voltage power is used for the high pressure of regulation is applied between this needle electrode and the passive electrode, and is electrically connected with this needle electrode and this passive electrode.But the subject matter that should technology exists is: can only the carbon granules in the diesel exhaust gas be got rid of, cleaning of off-gas is not thorough, and structure is too complicated, and inapplicable.
Therefore, behind diesel engine, install additional a kind of can be effectively, tail-gas after treatment apparatus is very necessary to reach the purpose of cleaning of off-gas simply.
Summary of the invention
The purpose of the utility model is to overcome the problems referred to above of the vent gas treatment existence that has diesel emission in the oil drilling construction operation now; A kind of well site exhaust emissions of diesel engine after-treatment device is provided; The utility model can reduce particulate matter and the nitrogen oxide in the exhaust emissions of diesel engine, can also not influence the normal operation of diesel engine.
For realizing above-mentioned purpose, the technological scheme that the utility model adopts is following:
A kind of well site exhaust emissions of diesel engine after-treatment device; It is characterized in that: comprise cyclone separator housing, exhaust gas inside pipe, corona discharge electrode frame and corona discharge electrode prickle; Said cyclone separator housing comprises the circular cylindrical shell on top and bores cylinder shell with circular cylindrical shell all-in-one-piece bottom; Have suction port on the circular cylindrical shell, exhaust gas inside Guan Yiduan is communicated with the outer rows inflator, and the other end stretches in the corona discharge electrode frame; The corona discharge electrode frame is arranged in the cyclone separator housing and with insulated terminal and is connected, and the corona discharge electrode prickle is distributed on the wall and outer wall of corona discharge electrode frame.
The outlet of said awl cylinder shell is connected with the ash tube that is used to collect separator.
Said suction port is a rectangular air inlet, along circular cylindrical shell axially or the tangential be arranged on the circular cylindrical shell.
Said corona discharge electrode frame is fixedly connected with circular cylindrical shell through insulated terminal.
Adopt the advantage of the utility model to be:
One, the utility model is electricity to be separated combine with conventional cyclonic separation; Utilize centrifugal force and electrostatic force to separate; Be issued to higher separation effect in low inlet velocity condition, be specially adapted to the bigger powder dust particle of particle diameter, its electrostatic field has improved the speed of charged dust to the wall motion of gathering dust; The effect of static coalescence makes the space dust alligatoring of gathering dust, and has improved the fine dust separation effect.
Two, the utility model improved electric cyclone separator dust charged level, improved electric cyclone separator electric field strength and corona current density, optimized the structure of electric cyclone separator; Keeping bringing into play high-voltage electrostatic field and the effect of electric current coalescence under the centrifugal action condition as far as possible.
Three, the utility model adopts high field intensity direct current type electricity cyclone separator can increase substantially the separation effect of direct current cyclone unit, and dust collecting electrode ability automatic ash removing has been simplified electric separation structure; The submicron particle particulate matter effect that captures diesel emission is better; Simple in structure, drag losses is low, dust removal efficiency is high, under the condition that guarantees enough waiting time, separation effect significantly improves; And do not increase the resistance of system; Wind speed is low more, and separation effect is high more, under the situation of gas load change, still can keep higher separation effect.
Four, in the utility model, the corona discharge electrode prickle is distributed on the wall and outer wall of corona discharge electrode frame, arranges that along wall electrical hachure is superior to the center suspension electrical hachure, can guarantee the smooth realization that electricity is strengthened, and under equal voltage, more can give full play to its electrostatic force.
Five, after the utility model was installed corona discharge electrode, tangential velocity distributed and becomes mild, and interior whirlpool no longer is that forced vortex flows; " bimodal " phenomenon occurred, inside and outside eddy current interface radius moves outward, and the tangential velocity in downstream district increases to some extent; Improved separation effect; The increase of the effective separated space of dust in the cyclone separator housing helps centrifugal force and electric field force separating particles, with routine then cyclone separator compare; Static whirlwind decoupler shaft symmetry properties makes moderate progress, the disorder but radial velocity distributes still.
Six, in the utility model, the cyclone separator housing comprises the circular cylindrical shell on top and bores cylinder shell with circular cylindrical shell all-in-one-piece bottom, along with reducing of radius; Static pressure and total head all reduce gradually; Downstream district static pressure is lower than conventional cyclone unit, and near the outlet pipe bottom, upstream district static pressure is much higher than conventional cyclone unit; Separation effect to micron and sub-micron soot particle is higher, has remedied the not deficiency of efficiency capture fine particle of cyclone dust collector.
Seven, compared with prior art, the utility model is simple in structure, and is easy to use, reduced particulate matter and the nitrogen oxide in the exhaust emissions of diesel engine, reduced the pollution to the well site surrounding enviroment.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, outer rows inflator, 2, the exhaust gas inside pipe, 3, the cyclone separator housing, 4, suction port, 5, the corona discharge electrode frame, 6, the High-Voltage Insulation terminal, 7, the corona discharge electrode prickle, 8, the ash tube.
Embodiment
A kind of well site exhaust emissions of diesel engine after-treatment device; Comprise cyclone separator housing, exhaust gas inside pipe, corona discharge electrode frame and corona discharge electrode prickle; Said cyclone separator housing comprises the circular cylindrical shell on top and bores cylinder shell with circular cylindrical shell all-in-one-piece bottom that have suction port on the circular cylindrical shell, exhaust gas inside Guan Yiduan is communicated with the outer rows inflator; The other end stretches in the corona discharge electrode frame; The corona discharge electrode frame is arranged in the cyclone separator housing and with insulated terminal and is connected, and through the insulation of High-Voltage Insulation terminal, the corona discharge electrode prickle is distributed on the wall and outer wall of corona discharge electrode frame between corona discharge electrode frame and the circular cylindrical shell.
In the utility model, the outlet of said awl cylinder shell is connected with the ash tube that is used to collect separator.Said corona discharge electrode frame is fixedly connected with circular cylindrical shell through insulated terminal.
Said suction port is a rectangular air inlet, along circular cylindrical shell axially or the tangential be arranged on the circular cylindrical shell.
The tangential formula that gets into had both shortened the settling height of grit to barrel, can reduce the mutual interference mutually between inlet air flow and interior eddy flow again, and was favourable to improving dust removal efficiency, but made the increase of deduster volume.
Axially the entering formula is compared with tangential entering formula, under the uniform pressure loss, can handle about 3 times gas flow, and its distribution of air flow is even.Therefore, mainly form multicyclone, and be used to handle the occasion of atm number with it.
Below the utility model is specified:
After adopting the utility model; When tail gas static cyclone separator rectangle entrance gets into; In cyclone separator, form axially downward swirling motion; The energising of corona discharge electrode prickle produces coronal discharge, under the acting in conjunction of centrifugal force and electrostatic force, removes particulate matter and part nitrogen oxide in the tail gas, and the tail gas after the purification is discharged through outlet pipe.
The working principle of the utility model is: when diesel engine vent gas is got into by the cyclone separator rectangular air inlet, in circular cylindrical shell, form axially downward outer eddy flow motion, in the awl cylinder shell, form interior vorticla motion upwards.The energising of corona discharge electrode prickle produces coronal discharge, and under the whirlwind action of centrifugal force, the particle that particle diameter is bigger is adsorbed by barrel wall; Under High Voltage electric field electrostatic force, fine grained is adsorbed by the pillar buoy body wall by alligatoring simultaneously.Coarse granule on the circular cylindrical shell and carbon ash fall into the ash tube under external force.The upwards interior eddy current that tail gas after the purification forms through the awl cylinder shell is by exhaust.
Claims (4)
1. well site exhaust emissions of diesel engine after-treatment device; It is characterized in that: comprise cyclone separator housing, exhaust gas inside pipe, corona discharge electrode frame and corona discharge electrode prickle; Said cyclone separator housing comprises the circular cylindrical shell on top and bores cylinder shell with circular cylindrical shell all-in-one-piece bottom; Have suction port on the circular cylindrical shell, exhaust gas inside Guan Yiduan is communicated with the outer rows inflator, and the other end stretches in the corona discharge electrode frame; The corona discharge electrode frame is arranged in the cyclone separator housing and with insulated terminal and is connected, and the corona discharge electrode prickle is distributed on the wall and outer wall of corona discharge electrode frame.
2. well site according to claim 1 exhaust emissions of diesel engine after-treatment device is characterized in that: the outlet of said awl cylinder shell is connected with the ash tube that is used to collect separator.
3. well site according to claim 1 and 2 exhaust emissions of diesel engine after-treatment device is characterized in that: said suction port is a rectangular air inlet, along circular cylindrical shell axially or the tangential be arranged on the circular cylindrical shell.
4. well site according to claim 1 and 2 exhaust emissions of diesel engine after-treatment device is characterized in that: said corona discharge electrode frame is fixedly connected with circular cylindrical shell through insulated terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120297497XU CN202194700U (en) | 2011-08-16 | 2011-08-16 | Tail gas emission post-treatment device for well site diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120297497XU CN202194700U (en) | 2011-08-16 | 2011-08-16 | Tail gas emission post-treatment device for well site diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194700U true CN202194700U (en) | 2012-04-18 |
Family
ID=45949616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120297497XU Expired - Fee Related CN202194700U (en) | 2011-08-16 | 2011-08-16 | Tail gas emission post-treatment device for well site diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194700U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500182A (en) * | 2014-11-14 | 2015-04-08 | 力帆实业(集团)股份有限公司 | Primary separator for motorcycle tail gas |
| CN104533573A (en) * | 2014-10-29 | 2015-04-22 | 长安大学 | Exhaust particulate matter collection device and control method thereof |
| CN104791051A (en) * | 2015-03-17 | 2015-07-22 | 上海唐亨能源科技有限公司 | Comprehensive disposal device for diesel engine exhaust gas |
| CN105148626A (en) * | 2015-09-24 | 2015-12-16 | 广东美的制冷设备有限公司 | Purifier |
| CN106368784A (en) * | 2016-08-31 | 2017-02-01 | 芜湖恒耀汽车零部件有限公司 | Purification type automobile exhaust pipe |
| CN109219686A (en) * | 2016-04-01 | 2019-01-15 | 比格斯威有限公司 | For separating the separator of fluid |
| CN111042902A (en) * | 2019-12-27 | 2020-04-21 | 珠海广睿汇利发展有限公司 | Exhaust gas purification device and motor vehicle having the same |
| CN111375247A (en) * | 2020-04-22 | 2020-07-07 | 兰州大学 | Dust removal device |
-
2011
- 2011-08-16 CN CN201120297497XU patent/CN202194700U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533573A (en) * | 2014-10-29 | 2015-04-22 | 长安大学 | Exhaust particulate matter collection device and control method thereof |
| CN104533573B (en) * | 2014-10-29 | 2017-01-25 | 长安大学 | An exhaust particulate matter trapping device and control method thereof |
| CN104500182A (en) * | 2014-11-14 | 2015-04-08 | 力帆实业(集团)股份有限公司 | Primary separator for motorcycle tail gas |
| CN104791051A (en) * | 2015-03-17 | 2015-07-22 | 上海唐亨能源科技有限公司 | Comprehensive disposal device for diesel engine exhaust gas |
| CN105148626A (en) * | 2015-09-24 | 2015-12-16 | 广东美的制冷设备有限公司 | Purifier |
| CN109219686A (en) * | 2016-04-01 | 2019-01-15 | 比格斯威有限公司 | For separating the separator of fluid |
| US20190118192A1 (en) * | 2016-04-01 | 2019-04-25 | The Big Swing Company Ltd | Separation device for separating a fluid |
| US11951489B2 (en) * | 2016-04-01 | 2024-04-09 | The Big Swing Company Ltd | Separation device for separating a fluid |
| CN106368784A (en) * | 2016-08-31 | 2017-02-01 | 芜湖恒耀汽车零部件有限公司 | Purification type automobile exhaust pipe |
| CN111042902A (en) * | 2019-12-27 | 2020-04-21 | 珠海广睿汇利发展有限公司 | Exhaust gas purification device and motor vehicle having the same |
| CN111375247A (en) * | 2020-04-22 | 2020-07-07 | 兰州大学 | Dust removal device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20200816 |