CN105298594B - Smoke evacuation fluidic device - Google Patents
Smoke evacuation fluidic device Download PDFInfo
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- CN105298594B CN105298594B CN201510810369.3A CN201510810369A CN105298594B CN 105298594 B CN105298594 B CN 105298594B CN 201510810369 A CN201510810369 A CN 201510810369A CN 105298594 B CN105298594 B CN 105298594B
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- smoke evacuation
- smoke
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Abstract
The invention discloses one kind smoke evacuation fluidic device, including blower fan, housing, outer nozzle, smoke discharging pipe, central nozzle and mixing tube；The blower fan is fixed on the first side of housing；The outer nozzle is fixed in housing, and bigger diameter end is fixed in first side, connects to form jet air runner with blower fan, and miner diameter end is fixed in the second side of housing, is connected with mixing tube；Housing is stretched out in described smoke discharging pipe one end, and the other end stretches into outer nozzle, is fixed in second side, forms air flow channel with outer nozzle, is connected with mixing tube；The central nozzle is fixed in smoke discharging pipe, and smoke discharging pipe and jet air flow passage are stretched out in one end, and the other end connects with mixing tube；The mixing tube first end is fixed on the second side, and the port diameter of first end is more than the diameter of the miner diameter end of outer nozzle.The present invention realizes multiple flow passages design, there is provided excellent aerodynamic characteristic, reduces the whirlpool being internally formed, realizes preferable jet effect, and improve service life.
Description
Technical field
The present invention relates to fume emission to control applied technical field, and in particular to one kind smoke evacuation fluidic device.
Background technology
Ocean platform is to carry out the comprehensive ocean engineering dress of drilling, storage, conveying and personnel's inhabitation for offshore oil
It is standby, it is the operational base for implementing sea-bottom oil-gas exploration and exploitation.
It can be divided into fixed and mobile platform according to architectural characteristic and working condition.Semi-submersible offshore platform is with extremely strong
The features such as capacity of anti-storm, excellent exercise performance, huge floor space and struck capacity, efficient operating efficiency, in depth
In extra large oil exploitation, the mobile platform for world is developing progressively.Diesel generating set is to ensure that ocean platform is normal
" heart " of operating, supply of electric power is provided for each drilling equipment electricity consumption and emergence power on ocean platform.
Because the diesel generating set of semi-submersible offshore platform is typically all disposed within main deck, position is than relatively low, work
Platform and accommodation platform are general all very high, and tall and big boring tower, hoisting machinery and other plant equipment, diesel engine are provided with platform
Smoke exhaust pipe is difficult the upper strata area of space for being arranged in platform.In order to not increase exhaust back pressure and not influence the work of drilling machinery,
Smoke exhaust pipe is typically arranged in lower position nearby.In the presence of sea wind, compared with low velocity flue gas can be blown to by sea wind work and
Living area pollutes.Be gathered in Emissions on platform include nitrogen oxides, sulfide, carbon monoxide,
Hydrocarbon and particle etc. can damage the cardio-pulmonary function of people strongly, seriously endanger the work and life of platform producers.Cause
This, the diesel exhaust gas of semi-submersible offshore platform must carry out proper treatment before air is discharged into.
At present, domestic and international treatment of diesel exhaust technology mainly has waste gas cleaning, spray smoke abatement, selective catalysis etc..Though
These right technologies efficient can purify exhaust, solve the problems, such as exhaust pollution platform air, but its volume is big, cost is held high
It is expensive, operating cost is high, very big cost input will be caused to ocean platform.Thus exhaust jet stream technology is arisen at the historic moment, its principle
It is：By injecting a large amount of high-speed airs in diesel exhaust gas pipe end, realized by the mutual collision and mixing of air and flue gas
The exchange of energy.After fluidic device：
A) accelerate the mixing of air and flue gas, dilute flue gas, reduce pollutant concentration；
B) flue gas flow rate is improved, makes fume emission to the region further from platform；
C) exhaust pipe end back pressure is reduced, is advantageous to flue gas and smoothly discharges, reduces engine fuel consumption；
D) the Wind-Pressure Resistance fluctuation ability of exhaust opening is improved.
Exhaust jet stream device has small volume, mounting arrangements simple and flexible, manufacture, operation and the advantages such as maintenance cost is low,
And it is installed, operation will not adversely affect substantially to diesel engine and other subsidiary engine equipment, and therefore, it is not only applicable to newly
Platform is made, and is also easy to install additional in transformation platform.With wider adaptability.
Also only just applied in recent years in treatment of diesel exhaust field, row in the market yet with fluidics
Gas fluidic device still suffers from that exhaust jet stream device context easily forms vortes interference jet effect, product service life falls short of etc. and lacked
Fall into.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, it is expected to provide a kind of jet effect preferably, service life it is longer
Smoke evacuation fluidic device.
The present invention provides a kind of smoke evacuation fluidic device, and described device includes blower fan, housing, outer nozzle, smoke discharging pipe, center
Nozzle and mixing tube；
The blower fan is fixed on the first side of the housing；
The outer nozzle is fixed in the housing, and bigger diameter end is fixed in the first side, is connected with the blower fan
Jet air runner is formed, miner diameter end is fixed in the second side of the housing, connected with the mixing tube；
The housing is stretched out in described smoke discharging pipe one end, and the other end stretches into the outer nozzle, is fixed on the second side
It is interior, air flow channel is formed with the outer nozzle, is connected with the mixing tube；
The central nozzle is fixed in the smoke discharging pipe, and the smoke discharging pipe and the jet air stream are stretched out in one end
Road connects, and the other end connects with the mixing tube；
The mixing tube first end is fixed in the second side, and the port diameter of the first end is more than the outer spray
The diameter of the miner diameter end of mouth.
The smoke evacuation fluidic device that many embodiments of the present invention provide passes through the structures such as outer nozzle, smoke discharging pipe, central nozzle
On Optimal improvements, realize multiple flow passages design, there is provided excellent aerodynamic characteristic, reduce smoke evacuation fluidic device in formed
Whirlpool, realize preferable jet effect；
The smoke evacuation fluidic device that some embodiments of the invention provide is by setting air feed shutter case, non-return valve, TEMP
The equipment such as device provide blower fan complete safeguard measure；
The smoke evacuation fluidic device that some embodiments of the invention provide sets up housing by setting stormproof louvre case on housing
With the air duct of outer nozzle formation, rubbing caused by the internal face for the direct impingement mix pipe of air-flow for reducing outer nozzle output
Wipe, reduce the service life that mixing tube is extended while forming the probability of whirlpool；
The multi-joint smoke evacuation fluidic device that some embodiments of the invention provide significantly is carried by multiple smoke evacuation fluidic devices in parallel
High gas treatment ability.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the structural representation for the smoke evacuation fluidic device that one embodiment of the invention provides.
Fig. 2 is the schematic appearance for the smoke evacuation fluidic device that one embodiment of the invention provides.
Fig. 3 is the schematic appearance for the duplex smoke evacuation fluidic device that one embodiment of the present invention provides.
Description of reference numerals：
1 air feed shutter case
2 blower fans
3 housings
4 outer nozzles
5 flow guiding bend pipes
6 external support boards
7 inner support plates
8 smoke removal conduits
9 central nozzles
10 mixing tubes
11 stators
12 flanges
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
It is easy to describe, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is the structural representation for the smoke evacuation fluidic device that one embodiment of the invention provides.Fig. 2 is the smoke evacuation fluidic cartridge
The schematic appearance put.
As depicted in figs. 1 and 2, in the present embodiment, smoke evacuation fluidic device provided by the present invention includes：Blower fan 2, housing
3rd, outer nozzle 4, smoke discharging pipe, central nozzle 9 and mixing tube 10.
Wherein：Blower fan 2 is fixed on the first side of housing 3；
Outer nozzle 4 is fixed in housing 3, and bigger diameter end is fixed in the first side, connects to form jet sky with blower fan 2
Flow channel, miner diameter end are fixed in the second side of housing 3, are connected with mixing tube 10；
Housing 3 is stretched out in described smoke discharging pipe one end, and the other end stretches into outer nozzle 4, is fixed in the second side, and outer
Nozzle 4 forms air flow channel, is connected with mixing tube 10；
Central nozzle 9 is fixed in the smoke discharging pipe, and the smoke discharging pipe and the jet air runner are stretched out in one end
Connection, the other end connect with mixing tube 10；
The first end of mixing tube 10 is fixed in the second side, and the port diameter of the first end is more than outer nozzle 4
The diameter of miner diameter end.
Specifically, in the present embodiment, the outlet diameter of central nozzle 9 is 0.2 times of smoke discharging pipe diameter, central nozzle
9 nozzle convergence angle is 5 °；Outer nozzle 4 is reducing pipe, and converging angles are 5 °；The smoke discharging pipe stretches at outer nozzle 4 and outer
Nozzle 4 is tightly connected.It is tightly connected between each position, it is ensured that without gas leakage between each runner.In more embodiments, root
According to different actual demands, the outlet diameter of central nozzle 9 may be configured as 0.1 times~0.3 times of smoke discharging pipe diameter, and nozzle is received
The setting range intervals at contracting angle are 2 °~5 °；The setting range intervals of the converging angles of outer nozzle 4 are 2 °~5 °；The smoke exhaust pipe
Road, which stretches into, can use other sealed connection modes such as welding at outer nozzle 4, have same technique effect.
In a preferred embodiment, the smoke discharging pipe includes flow guiding bend pipe 5, smoke removal conduit 8 and flange 12.
Housing 3 is stretched out in the one end of flow guiding bend pipe 5, and the other end stretches into outer nozzle 4, is connected with one end of smoke removal conduit 8, forms cigarette
Flow channel；The other end of smoke removal conduit 8 is fixed in the second side.Flange 12 is arranged on flow guiding bend pipe 5 and stretches out housing
Port.
Specifically, in the present embodiment, smoke removal conduit 8 is increaser, and diffusion angle is 0.5 °, in more embodiments,
According to the actual requirements, when smoke removal conduit 8 is using increaser, the setting range intervals of the diffusion angle of smoke removal conduit 8 are 0.4 °
~1 °；According to different demands, smoke removal conduit 8 can also use the conduits of different shapes such as straight tube.
In a preferred embodiment, central nozzle 9 is fixed in smoke removal conduit 8 by inner support plate 7.
In a preferred embodiment, mixing tube 10 includes converging transition, straight length and the divergent segment being sequentially connected, described tapered
Section is fixedly connected with housing 3.
Specifically, in the present embodiment, the angle of throat of the converging transition is 30 °, and a diameter of smoke evacuation of the straight length is led
1.5 times of the diameter of pipe 8, the angle of flare of the divergent segment is 15 °.In more embodiments, according to different actual demands, institute
The setting range intervals for stating the angle of throat of converging transition are 20 °~45 °, and the diameter of the straight length may be configured as smoke removal conduit 8
1.2 times of diameter~1.5 times, the setting range intervals of the angle of flare of the divergent segment are 5 °~15 °.The converging transition and housing
3 bolt connections.
In a preferred embodiment, stator 11 is installed, for reclaiming the static pressure of mixed gas in the divergent segment.
Specifically, in the present embodiment, the blade quantity of stator 11 is 15.In more embodiments, according to different
Actual demand, it is 9~17 that the blade quantity of stator 11, which sets range intervals,.
In a preferred embodiment, the miner diameter end of outer nozzle 4 is fixed in housing 3 by external support board 6.
Specifically, each part for being arranged in housing 3 or stretching into housing 3 is tightly connected between each other；Further, one
In preferred embodiment, each part for being arranged in housing 3 or stretching into housing 3 is welded to connect between each other.
In some preferred embodiments, the smoke evacuation fluidic device may also include at least one of following：
Air feed shutter case 1, the entrance of blower fan 2 is arranged on, for protecting the import of blower fan 2；
Non-return valve, the exit of blower fan 2 is arranged on, for preventing flue gas to be inversely blown into blower fan 2 when blower fan 2 is stopped
Outlet；
Temperature sensor, the exit of blower fan 2 is arranged on, for detection temperature, so as to when reverse high-temperature flue gas is blown
Start blower fan 2.
Above-described embodiment is complete by setting the equipment such as air feed shutter case 1, non-return valve, temperature sensor to provide blower fan 2
Safeguard measure, so as to improve smoke evacuation fluidic device service life.
In some preferred embodiments, housing 3 also includes at least one of following：
Stormproof louvre case, it is arranged on housing 3, the passage for making a small amount of air be formed along housing 3 and outer nozzle 4 sucks
In mixing tube 10, reduce the friction caused by the internal face for the direct impingement mix pipe 10 of air-flow that outer nozzle 4 exports；
Escape orifice, the bottom lowest part of housing 3 is arranged on, for discharging the liquid of the inner accumulation of housing 3.
Above-described embodiment sets up the air duct that housing and outer nozzle are formed by setting stormproof louvre case on housing,
Reduce the friction caused by the internal face of the direct impingement mix pipe of air-flow of outer nozzle output, reduction forms the same of the probability of whirlpool
When extend the service life of mixing tube.
Fig. 3 is the schematic appearance for the duplex smoke evacuation fluidic device that one embodiment of the present invention provides.
As shown in figure 3, in a preferred embodiment, two smoke evacuation fluidic devices in parallel share a housing 3, group
Into a duplex smoke evacuation fluidic device.In more embodiments, multiple smoke evacuation fluidic cartridges in parallel can be arranged as required to
Put, form multi-joint smoke evacuation fluidic device.
Above-described embodiment greatly improves gas treatment ability by multiple smoke evacuation fluidic devices in parallel.
In a preferred embodiment, the smoke evacuation fluidic device includes the air feed shutter for being arranged on the entrance of the blower fan
Case 1, the smoke evacuation fluidic device in parallel share an air feed shutter case 1.
The smoke evacuation fluidic device that above-mentioned many embodiments provide is realized multiple flow passages and set by the Optimal improvements in structure
Meter, there is provided excellent aerodynamic characteristic, reduce the whirlpool formed in smoke evacuation fluidic device, realize preferable jet effect：
By CFD simulation softwares, 600mm a diameter of to smoke exhaust pipe, the diesel exhaust gas that exhaust smoke level is 18500kg/s is carried out
Simulation calculation, in the case where jet air amount is 44400kg/s design conditions, jet air exports in outer nozzle 4 and central nozzle 9
The speed at place forms free jet, formed in the porch of mixing tube 10 apparently higher than the flow velocity of the exit flue gas of smoke removal conduit 8
About 200Pa negative pressure, the back pressure in smoke removal conduit 8 exit is reduced, diesel smoke is more smoothly entered mixed
Close pipe 10, jet air and flue gas form mixed layer in contact surface, the mixed layer gradually tube wall to mixing tube 10 and central area
Development.Air and flue gas gradually mix in mixing tube 10, and energy constantly exchanges, and velocity of flue gas and pressure get a promotion, mixing
The average speed in the exit of pipe 10 brings up to 41m/s by 38m/s, and average pressure brings up to about 150Pa by 0Pa.Smoke evacuation fluidic cartridge
Obvious vortex is not formed in putting, and flow regime is good.
From simulated effect, smoke evacuation fluidic device provided by the invention has excellent aerodynamic characteristic, and jet effect is
Reach the level of same kind of products at abroad, disclosure satisfy that every technical requirements of the user to fluidic device.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (10)
1. one kind smoke evacuation fluidic device, it is characterised in that described device includes blower fan, housing, outer nozzle, smoke discharging pipe, center
Nozzle and mixing tube；
The blower fan is fixed on the first side of the housing；
The outer nozzle is fixed in the housing, and bigger diameter end is fixed in the first side, connects to be formed with the blower fan
Jet air runner, miner diameter end are fixed in the second side of the housing, are connected with the mixing tube；
The housing is stretched out in described smoke discharging pipe one end, and the other end stretches into the outer nozzle, is fixed in the second side, with
The outer nozzle forms air flow channel, is connected with the mixing tube；
The central nozzle is fixed in the smoke discharging pipe, and one end is stretched out the smoke discharging pipe and connected with the jet air runner
Logical, the other end connects with the mixing tube；
The mixing tube first end is fixed in the second side, and the port diameter of the first end is more than the outer nozzle
The diameter of miner diameter end.
2. smoke evacuation fluidic device according to claim 1, it is characterised in that the smoke discharging pipe includes flow guiding bend pipe, row
Cigarette conduit and flange；
The housing is stretched out in described flow guiding bend pipe one end, and the other end stretches into the outer nozzle, connects with one end of the smoke removal conduit
Connect, form flue gas flow channel；The other end of the smoke removal conduit is fixed in the second side；The flange is arranged on described lead
Flow the port that bend pipe stretches out housing.
3. smoke evacuation fluidic device according to claim 2, it is characterised in that the central nozzle is fixed by inner support plate
In the smoke removal conduit.
4. smoke evacuation fluidic device according to claim 1, it is characterised in that the mixing tube is tapered including being sequentially connected
Section, straight length and divergent segment, the converging transition are fixedly connected with the housing.
5. smoke evacuation fluidic device according to claim 4, it is characterised in that be provided with stator in the divergent segment, be used for
Reclaim the static pressure of mixed gas.
6. smoke evacuation fluidic device according to claim 1, it is characterised in that the miner diameter end of the outer nozzle passes through outer support
Plate is fixed in the housing.
7. smoke evacuation fluidic device according to claim 1, it is characterised in that also including at least one of following：
Air feed shutter case, the entrance of the blower fan is arranged on, for protecting the import of the blower fan；
Non-return valve, the exit of the blower fan is arranged on, for preventing flue gas to be inversely blown into wind when the blower fan is stopped
The outlet of machine；
Temperature sensor, the exit of the blower fan is arranged on, for detection temperature, so as to be opened when reverse high-temperature flue gas is blown
Move the blower fan.
8. smoke evacuation fluidic device according to claim 1, it is characterised in that the housing also includes at least one of following：
Stormproof louvre case, set on the housing, for making a small amount of air lead to along what the housing and the outer nozzle were formed
Road is sucked in the mixing tube, and the air-flow for reducing the outer nozzle output is directly impacted caused by the internal face of the mixing tube
Friction；
Escape orifice, the housing bottom lowest part is arranged on, for discharging the liquid of the enclosure interior accumulation.
9. the multi-joint smoke evacuation fluidic device formed according to any one of the claim 1-8 smoke evacuation fluidic devices, it is characterised in that
Including at least two smoke evacuation fluidic devices in parallel, the smoke evacuation fluidic device in parallel shares a housing.
10. multi-joint smoke evacuation fluidic device according to claim 9, it is characterised in that the smoke evacuation fluidic device includes setting
The air feed shutter case in the entrance of the blower fan is put, the smoke evacuation fluidic device in parallel shares an air feed shutter case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810369.3A CN105298594B (en) | 2015-11-20 | 2015-11-20 | Smoke evacuation fluidic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510810369.3A CN105298594B (en) | 2015-11-20 | 2015-11-20 | Smoke evacuation fluidic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298594A CN105298594A (en) | 2016-02-03 |
| CN105298594B true CN105298594B (en) | 2017-11-21 |
Family
ID=55196306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510810369.3A Active CN105298594B (en) | 2015-11-20 | 2015-11-20 | Smoke evacuation fluidic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105298594B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356888B (en) * | 2018-11-05 | 2023-09-15 | 中国船舶重工集团公司第七一九研究所 | Jet pump |
| CN113202825B (en) * | 2021-04-25 | 2022-07-19 | 连云港正航电力节能技术有限公司 | Steam jet air extractor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216470U (en) * | 1987-12-23 | 1988-09-21 | 王国库 | Smoke pump |
| KR0149076B1 (en) * | 1995-12-22 | 1998-11-02 | 김태구 | A drop bent device for vehicle indoor using sonic nozzle jet pump |
| CN2386352Y (en) * | 1999-06-09 | 2000-07-05 | 唐长华 | Injection cooker hood |
| JP2005028200A (en) * | 2003-07-07 | 2005-02-03 | Suguro Tekko:Kk | Force feed type dust collector |
| CN201032158Y (en) * | 2007-01-26 | 2008-03-05 | 李德生 | Highly effective energy-saving ventilation device |
| CN201173146Y (en) * | 2007-12-13 | 2008-12-31 | 范良凯 | Smoke discharging infrared inhibition device |
| CN103453545A (en) * | 2012-06-05 | 2013-12-18 | 孙长杰 | Smoke exhaust barrel with jet technology for hot-blast stove |
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2015
- 2015-11-20 CN CN201510810369.3A patent/CN105298594B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105298594A (en) | 2016-02-03 |
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Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee after: The 711 Research Institute of China Shipbuilding Corp. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: Shanghai Marine Diesel Engine Research Institute |
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