CN104492173A - Three-stage air filtration system - Google Patents
Three-stage air filtration system Download PDFInfo
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- CN104492173A CN104492173A CN201410689027.6A CN201410689027A CN104492173A CN 104492173 A CN104492173 A CN 104492173A CN 201410689027 A CN201410689027 A CN 201410689027A CN 104492173 A CN104492173 A CN 104492173A
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Abstract
The invention belongs to the field of gas-turbine air filtering technologies, and disclosed a three-stage air filtration system used for solving the problems that a conventional gas turbine is large in filtering area and short in service life, and problems that a self-cleaning filtering technology is high in cost and easily causes secondary pollution, and blowing explosion sound is large. The three-stage air filtration system comprises a filtering house, and the filtering house is inside provided with a coarse filter, a medium-efficiency filter and a high-efficiency filter; an unkeeping channel is arranged between the coarse filter and the medium-efficiency filter, and an unkeeping channel is arranged between the medium-efficiency filter and the high-efficiency filter; the medium-efficiency filter comprises a top driving roller and a bottom driving roller both installed in the filtering house, and driven rollers installed between the top driving roller and the bottom driving roller, and the driven rollers are installed in the filtering house alternately at the left and right; and each of the top driving roller, the driven rollers and the bottom driving roller is cladded by a filtering layer, and a blowing system is arranged above the filtering layer between the driven roller at the lowermost end of the filtering house and the bottom driving roller.
Description
Technical field
The invention belongs to gas turbine air filtration technical field, being specifically related to a kind of three grades of air filtering systems, for filtering the air entering gas turbine, also may be used for the air filtration of other field.
Background technology
Gas turbine be a kind of using the gas of continuous-flow as working medium the thermal power transfer rotary power machinery that is mechanical power.In the main flow of air and combustion gas, primarily of this three large parts composition gas turbine cycle of compressor, combustion chamber and combustion gas turbine.
Compressor sucks air from ambient atmosphere environment, and compresses step by step through axial-flow compressor and make it supercharging, simultaneously air humidity also corresponding raising; Compressed air is pressed to the combustion gas that combustion chamber and the fuel mix that sprays into produce HTHP; And then enter into turbine expansion work, promote turbine and drive compressor High Rotation Speed together with outer load rotor, the chemical energy achieving gas and liquid fuel is mechanical energy, and exports electric work.
The inlet air flow of gas turbine blower and the combustion air of gas turbine must carry out purified treatment before being introduced into compressor.Modal is adopt the fabric filter of machinery to purify above-mentioned air inlet, and the corrosive and dirty particle of preventing belt enters compressor and turbine, thus prevents corrosion and the breakage of equipment, and the workload reducing cleaning and keep in repair.Gas turbine for the production of the energy needs a large amount of combustion airs, therefore, even the impurity of trace all can cause in use producing a large amount of deposit, so require filtration combustion air as far as possible effectively.
In prior art, air filtration mainly adopts static filtering or automatically cleaning to filter.
Such as application number be 201220044604.2 utility model patent disclose a kind of pulse self-cleaning, air cleaning equipment, comprise support, be provided with casing device above support, casing device inside is provided with filter, Pulse anti-blow device and control system; Casing device comprises air-purifying chamber, and the front end of air-purifying chamber is provided with air outlet, and rear end is provided with rain cover; Filter is arranged on the inside of air-purifying chamber, and it comprises V type air cleaner and bracing frame, and V type air cleaner one end is arranged on bracing frame by fastening bolt, and the other end is provided with corresponding ash-collecting pipe; Pulse anti-blow device is arranged on air-purifying chamber, and it comprises Venturi tube, injection tube and blowback house steward, and injection tube is provided with row's spray orifice, and blowback house steward is connected with injection tube by pulse backblowing valve, and blowback house steward is provided with electromagnetic valve component; Control system is arranged on rain cover, and it comprises connected control terminal case and differential pressure transmitter, and control terminal case is connected with electromagnetic valve component; The below of support is provided with dust collection device, and dust collection device comprises takes out grey blower fan and the grey funnel of collection, collects grey funnel upper end and is connected with ash-collecting pipe, lower end with take out grey blower fan and be connected; The quantity of spray orifice is more than six or six; Between V type air cleaner and ash-collecting pipe, sealing gasket is installed; The top of rain cover inside is provided with illuminating lamp.
Application number be 201420234724.8 utility model patent disclose a kind of gas turbine inlet air filter, comprise filter, rainhat, high-precision filtration element, blowback shower nozzle, compressed air hose, magnetic valve, inspection platform, air channel, silencer; Filter porch and be provided with rainhat, filter interior is provided with high-precision filtration element, and high-precision filtration element filters Way out is provided with blowback shower nozzle, and blowback shower nozzle is connected with compressed air pipe, and compressed air hose is provided with magnetic valve; Filter interior is provided with inspection platform in high-precision filtration elements on either side; Filter outlet is connected with silencer by air channel; High-precision filtration element is double-decker, and ground floor is E level filter course, and the second layer is moistureproof filter course; E level filter course is the electrostatic nanometer layer adopting nano filter medium manufacture; Moistureproof filter course adopts 100% moisture resistance synthesis base material to make; High-precision filtration element is that modular is installed, independent dismounting cleaning; Silencer adopts metal silk quality deadener to make.
Such as application number be 20111044876602 patent of invention disclose a kind of air filter of static filtering, comprise first order filter, second level filter and third level filter, in the spaced inlet channel being sequentially arranged in gas turbine generator group of first order filter, second level filter and third level filter; Air filter also comprises interval and is fixed on multiple filter frames in the inlet channel of gas turbine generator group, and second level filter and third level filter are separately positioned on filter frame; Air filter also comprises built-in fitting, and each filter frame is fixedly installed in the inlet channel of gas turbine generator group by built-in fitting.The periphery of each filter frame is provided with installing hole, and filter frame is fixedly mounted in the inlet channel of gas turbine generator group by installing hole and built-in fitting; Each filter frame is provided with square hole, is provided with a unit frame at the periphery of each square hole, and second level filter or third level filter operable are arranged on corresponding unit frame; The periphery of second level filter and third level filter and the periphery of unit frame leave gap, and gap is sealed by filter seal pad.Each filter frame is provided with some securing members, securing member comprises pressing plate and the screw of band through hole, pressing plate backstop in the periphery edge place of the third level filter of the second level filter of correspondence or correspondence, screw through after the through hole of pressing plate by second level filter or third level filter backstop in unit frame.Third level filter is bag filter, and first order filter is shutter inertial filter.Second level filter is folded metal filtration web filter.
Static filtering device as told about above also exists that filter area is large, service life is short, does not change the problem that filter effect reduces greatly for a long time.
And as the automatically cleaning filter told about above, there is filter cylinder cost high, when jetting, dust easily causes secondary pollution, and explosion sound when jetting is large, to environment.
For meeting economic requirement and environmental requirement, need to design a kind of filter area large, the life-span is long, the filter that cost is low.
Summary of the invention
The problem that filter area is large, service life is short that the present invention exists to solve existing gas turbine, the cost adopting automatically cleaning filtering technique to exist is high, easily cause secondary pollution and the large problem of winding-up explosion sound, and a kind of three grades of air filtering systems are provided, have the advantages that filter area is large, long service life, cost are low, can not secondary pollution be caused simultaneously, meet economy of power plant and environmental demand.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of three grades of air filtering systems, comprise filtration room, low efficient filter, medium effeciency filter and high efficiency particulate air filter is provided with in described filtration room, access path is provided with between described low efficient filter and medium effeciency filter, access path is provided with between described medium effeciency filter and high efficiency particulate air filter, it is characterized in that, described medium effeciency filter comprises the follower rollers being arranged on the top drive cylinder filtered in room, bottom head roll and being arranged between top drive cylinder and bottom head roll, is alternately arranged on and filters in room about described follower rollers; Described top drive cylinder, follower rollers and bottom head roll are coated with filter course, are equipped with injection system filtering above the filter course between room follower rollers bottom and bottom head roll; The anti-blowpipe that described injection system comprises conical guiding device and is communicated with compressed air source, the center line of described guiding device and the center line of anti-blowpipe are on the same line, the top of the top of described guiding device and the end face of anti-blowpipe or guiding device is stretched in anti-blowpipe, and the bottom surface of guiding device is just to filtering the filter course between room follower rollers bottom and bottom head roll.
Described guiding device is connected with anti-blowpipe through fixture.
Described fixture comprises the brace be connected with guiding device, described brace structure in the form of sheets, and the axis of described guiding device is in the plane at brace place.
The outer wall of described guiding device is evenly provided with at least two braces.
Connection two fixture symmetrical on the outer wall of described guiding device and the outer wall of anti-blowpipe, described fixture is laminated structure.
Described injection system also comprises breather pipe, and described breather pipe is communicated with multiple anti-blowpipe.
Described bottom head roll and be equipped with receipts ash bucket in the below of filtering the filter course between room follower rollers bottom.
Described filter course one end is connected on top drive cylinder, the other end successively through follower rollers and be connected to bottom head roll on.
Described top drive cylinder and bottom head roll are by drive motors driven rotary, and be connected with decelerator between described top drive cylinder and drive motors, described bottom head roll and drive motors are connected with decelerator.
Compared with prior art, the present invention has following beneficial effect:
Three grades of air filtering systems of the present invention, comprise filtration room, low efficient filter, medium effeciency filter and high efficiency particulate air filter is provided with in described filtration room, access path is provided with between described low efficient filter and medium effeciency filter, access path is provided with between described medium effeciency filter and high efficiency particulate air filter, described medium effeciency filter comprises the follower rollers being arranged on the top drive cylinder filtered in room, bottom head roll and being arranged between top drive cylinder and bottom head roll, is alternately arranged on and filters in room about described follower rollers; Described top drive cylinder, follower rollers and bottom head roll are coated with filter course, are equipped with injection system filtering above the filter course between room follower rollers bottom and bottom head roll; The anti-blowpipe that described injection system comprises conical guiding device and is communicated with compressed air source, the center line of described guiding device and the center line of anti-blowpipe are on the same line, the top of the top of described guiding device and the end face of anti-blowpipe or guiding device is stretched in anti-blowpipe, and the bottom surface of guiding device is just to filtering the filter course between room follower rollers bottom and bottom head roll.Folding and unfolding can be carried out to filter course by top drive cylinder and bottom head roll, blowback can be carried out to filter course by injection system, improve the service life of filter course.Due to the follower rollers that left and right is arranged alternately, make filter course form multiple V-shaped, compared to existing static filtering, improve filter area, thus improve the effect of filtering.
The filter course of injection system to used (dirty) of bottom unifies winding-up, and the carrying out that injection system can continue is jetted, and filters and has the little feature of explosion sound, reduce the pollution of environment relative to automatically cleaning.Compare and automatically cleaning filtering technique, the dust blown off directly enters below and receives ash bucket, avoids secondary pollution simultaneously.Compressed air can be shunted by conical guiding device by injection system of the present invention uniformly, improves the effect of winding-up.
Simultaneously the present invention has that structure is simple, installation and maintenance feature easily, improves practicality of the present invention.
In sum, the present invention has the advantages that structure is simple, filter area large, good filtration effect, long service life and cost are low, meets the requirement of economy and environment.
The present invention can not only be applicable to the inlet air filtration of gas turbine, and the air evolution that can also be used for other field is filtered.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, and wherein the direction of arrow represents the flow direction of gas;
Fig. 2 is the structural representation of medium effeciency filter of the present invention;
Fig. 3 is the syndeton schematic diagram of anti-blowpipe of the present invention and guiding device;
Mark in figure: 1, filter room, 2, low efficient filter, 3, medium effeciency filter, 4, high efficiency particulate air filter, 5, access path, 6, follower rollers, 7, filter course, 8, breather pipe, 9, bottom head roll, 10, anti-blowpipe, 11, guiding device, 12, fixture, 13, receive ash bucket, 14, top drive cylinder, 15, brace.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and described embodiment is only the present invention's part embodiment, is not whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments used obtained under creative work prerequisite, belongs to protection scope of the present invention.
Three grades of air filtering systems of the present invention, comprise and filter room 1, low efficient filter 2, medium effeciency filter 3 and high efficiency particulate air filter 4 is provided with in described filtration room 1, access path 5 is provided with between described low efficient filter 2 and medium effeciency filter 3, access path 5 is provided with between described medium effeciency filter 3 and high efficiency particulate air filter 4, described medium effeciency filter 3 comprises the follower rollers 6 being arranged on the top drive cylinder 14 filtered in room 1, bottom head roll 9 and being arranged between top drive cylinder 14 and bottom head roll 9, and described follower rollers about 6 is alternately arranged on and filters in room 1; Described top drive cylinder 14, follower rollers 6 and bottom head roll 9 are coated with filter course 7, are equipped with injection system filtering above the filter course 7 between room 1 follower rollers 6 bottom and bottom head roll 9; The anti-blowpipe 10 that described injection system comprises conical guiding device 11 and is communicated with compressed air source, the center line of described guiding device 11 and the center line of anti-blowpipe 10 are on the same line, the top of the top of described guiding device 11 and the end face of anti-blowpipe 10 or guiding device 11 is stretched in anti-blowpipe 10, and the bottom surface of guiding device 11 is just to filtering the filter course 7 between room 1 follower rollers 6 bottom and bottom head roll 9.Filter course 7 one end is connected on top drive cylinder 14, the other end successively through follower rollers 6 and be connected to bottom head roll 9 on, make bottom head roll 9 and top drive cylinder 14 that filter course 7 can both be driven to move, and under the effect of injection system, filter course can recycle.Simultaneously can coated more filter course on top drive cylinder of the present invention and bottom head roll, extend the length of filter course, thus reduce the number of times changing filter course, reduce maintenance cost, improve practicality of the present invention.
Injection system of the present invention also comprises breather pipe 8, and breather pipe 8 is communicated with multiple anti-blowpipe 10, and breather pipe 8 is communicated with compressed air source, is arranged on filter course 7 uniformly by multiple anti-blowpipe 10, improves the effect of filter course winding-up.
Top drive cylinder 14 and bottom head roll 9, for the folding and unfolding of filter course 7, make the use that filter course 7 can circulate.The air entered from filtration room 1 air inlet is filtered by the filter course 7 be arranged in top drive cylinder 14, follower rollers 6 and bottom head roll 9, when filter course 7 needs the dust of absorption more time, bottom head roll 9 drives filter course 7 to move down, and filtered by injection system, thus the dust be adsorbed on filter course is cleared up, filter course can be recycled.
Top drive cylinder 14 and bottom head roll 9 can carry out folding and unfolding to filter course 7, can carry out blowback by injection system to filter course, improve the service life of filter course.Due to the follower rollers that left and right is arranged alternately, make filter course form multiple V-shaped, compared to existing static filtering, improve filter area, thus improve the effect of filtering.
The filter course of injection system to used (dirty) of bottom unifies winding-up, and the carrying out that injection system can continue is jetted, and filters and has the little feature of explosion sound, reduce the pollution of environment relative to automatically cleaning.Compare and automatically cleaning filtering technique, the dust blown off directly enters below and receives ash bucket 13, avoids secondary pollution simultaneously.Compressed air can be shunted by conical guiding device 11 by injection system of the present invention uniformly, improves the effect of winding-up.
The top of the top of guiding device 11 of the present invention and the end face of anti-blowpipe 10 or guiding device 11 is stretched in anti-blowpipe 10.The top of guiding device of the present invention can also have certain distance with the end face of anti-blowpipe, the center line of the center line of guiding device and anti-blowpipe and filter cylinder on the same line, can ensure that guiding device can the compressed air of dispersed anti-blowpipe winding-up equally.
Guiding device 11 of the present invention can also be set to truncated cone-shaped, and the center line of truncated cone-shaped guiding device and the center line of anti-blowpipe are on the same line, the upper bottom surface (end face that radius is less) of truncated cone-shaped guiding device is towards anti-blowpipe, and the bottom surface (end face that radius is larger) of truncated cone-shaped guiding device is towards filter course.The upper bottom surface (end face that radius is less) of truncated cone-shaped guiding device can with the end contact of anti-blowpipe, also can extend in anti-blowpipe, or with the end face of anti-blowpipe, there is certain spacing.
As a kind of preferred mode of the present invention, guiding device conically.
Guiding device 11 is connected with anti-blowpipe 10 through fixture 12, is fixed by fixture 12 pairs of guiding devices 11 and is located; In other structures that guiding device 11 of the present invention also can be fixed on by fixture; as long as can realize the fixing of guiding device and the center line ensureing the center line of guiding device and anti-blowpipe on the same line, all belong to protection scope of the present invention.
The center line of guiding device 11 of the present invention also can with on the no longer same straight line of the center line of anti-blowpipe 10.But in order to ensure the uniformity that guiding device 11 disperses, as preferred mode, the center line of guiding device and the center line of anti-blowpipe are on the same line.
Preferably, described fixture 12 comprises the brace 15 be connected with guiding device 11, and described brace 15 structure in the form of sheets, the axis of described guiding device 11 is in the plane at brace 15 place.By being set to laminated structure by with the brace that guiding device is directly connected, the axis of guiding device is in the plane at brace place simultaneously, the barrier effect of brace to the air that anti-blowpipe sprays can be reduced, thus improve the uniformity of guiding device water conservancy diversion, thus improve the blowback effect to filter cylinder.
In order to the uniformity of the stable connection and water conservancy diversion that improve guiding device, the outer wall of guiding device 11 is evenly connected with at least two braces 15.
As a kind of preferred mode of the present invention, symmetrically on the outer wall of guiding device and the outer wall of anti-blowpipe be connected with two fixtures, fixture is laminated structure, and in order to reduce the impact of fixture on the air that anti-blowpipe sprays, the axis of guiding device is in the plane at fixture place; The fixture of laminated structure is convenient to install and processing, improves practicality of the present invention.As the mode of a kind of selection of the present invention, fixture is connected with guiding device and anti-blowpipe by the mode of welding.
Described bottom head roll 9 and be equipped in the below of filtering the filter course 7 between room 1 follower rollers 6 bottom and receive ash bucket 13.Receive ash bucket 13 by arranging, the dust through winding-up directly can fall into receipts ash bucket 13, has both been convenient to the collection of dust, and can have prevented secondary pollution again, and improved filter effect of the present invention.
As a kind of preferred mode of the present invention, receiving ash bucket is small top and big bottom funnel-form, is convenient to the collection of dust.
As the mode of a kind of selection of the present invention, described top drive cylinder and bottom head roll are by drive motors driven rotary, and be connected with decelerator between described top drive cylinder and drive motors, described bottom head roll and drive motors are connected with decelerator.Wherein, drive motors and decelerator belong to prior art products, and those skilled in the art can understand and understand, and does not repeat them here.
As the mode of a kind of selection of the present invention, top drive cylinder, bottom head roll and follower rollers are arranged on through bearing block and filter on room.The present invention is made to have the simple feature of structure.
To sum up, the present invention has the advantages that structure is simple, filter area large, good filtration effect, long service life and cost are low, meets the requirement of economy and environment.
The present invention can not only be applicable to the inlet air filtration of gas turbine, and the air evolution that can also be used for other field is filtered.
Embodiment one
Three grades of air filtering systems of the present embodiment, comprise filtration room, low efficient filter, medium effeciency filter and high efficiency particulate air filter is provided with in described filtration room, access path is provided with between described low efficient filter and medium effeciency filter, access path is provided with between described medium effeciency filter and high efficiency particulate air filter, described medium effeciency filter comprises the follower rollers being arranged on the top drive cylinder filtered in room, bottom head roll and being arranged between top drive cylinder and bottom head roll, is alternately arranged on and filters in room about described follower rollers; Described top drive cylinder, follower rollers and bottom head roll are coated with filter course, are equipped with injection system filtering above the filter course between room follower rollers bottom and bottom head roll; The anti-blowpipe that described injection system comprises conical guiding device and is communicated with compressed air source, the center line of described guiding device and the center line of anti-blowpipe are on the same line, the top of the top of described guiding device and the end face of anti-blowpipe or guiding device is stretched in anti-blowpipe, and the bottom surface of guiding device is just to filtering the filter course between room follower rollers bottom and bottom head roll.
Embodiment two
Three grades of air filtering systems of the present embodiment, comprise filtration room, low efficient filter, medium effeciency filter and high efficiency particulate air filter is provided with in described filtration room, access path is provided with between described low efficient filter and medium effeciency filter, access path is provided with between described medium effeciency filter and high efficiency particulate air filter, described medium effeciency filter comprises the follower rollers being arranged on the top drive cylinder filtered in room, bottom head roll and being arranged between top drive cylinder and bottom head roll, is alternately arranged on and filters in room about described follower rollers; Described top drive cylinder, follower rollers and bottom head roll are coated with filter course, are equipped with injection system filtering above the filter course between room follower rollers bottom and bottom head roll; The anti-blowpipe that described injection system comprises conical guiding device and is communicated with compressed air source, the center line of described guiding device and the center line of anti-blowpipe are on the same line, the top of the top of described guiding device and the end face of anti-blowpipe or guiding device is stretched in anti-blowpipe, and the bottom surface of guiding device is just to filtering the filter course between room follower rollers bottom and bottom head roll.Guiding device is connected with anti-blowpipe through fixture.
Embodiment three
Three grades of air filtering systems of the present embodiment, comprise filtration room, low efficient filter, medium effeciency filter and high efficiency particulate air filter is provided with in described filtration room, access path is provided with between described low efficient filter and medium effeciency filter, access path is provided with between described medium effeciency filter and high efficiency particulate air filter, described medium effeciency filter comprises the follower rollers being arranged on the top drive cylinder filtered in room, bottom head roll and being arranged between top drive cylinder and bottom head roll, is alternately arranged on and filters in room about described follower rollers; Described top drive cylinder, follower rollers and bottom head roll are coated with filter course, are equipped with injection system filtering above the filter course between room follower rollers bottom and bottom head roll; The anti-blowpipe that described injection system comprises conical guiding device and is communicated with compressed air source, the center line of described guiding device and the center line of anti-blowpipe are on the same line, the top of the top of described guiding device and the end face of anti-blowpipe or guiding device is stretched in anti-blowpipe, and the bottom surface of guiding device is just to filtering the filter course between room follower rollers bottom and bottom head roll.Guiding device is connected with anti-blowpipe through fixture; Fixture comprises the brace be connected with guiding device, described brace structure in the form of sheets, and the axis of described guiding device is in the plane at brace place.
Embodiment three
Three grades of air filtering systems of the present embodiment, comprise filtration room, low efficient filter, medium effeciency filter and high efficiency particulate air filter is provided with in described filtration room, access path is provided with between described low efficient filter and medium effeciency filter, access path is provided with between described medium effeciency filter and high efficiency particulate air filter, described medium effeciency filter comprises the follower rollers being arranged on the top drive cylinder filtered in room, bottom head roll and being arranged between top drive cylinder and bottom head roll, is alternately arranged on and filters in room about described follower rollers; Described top drive cylinder, follower rollers and bottom head roll are coated with filter course, are equipped with injection system filtering above the filter course between room follower rollers bottom and bottom head roll; The anti-blowpipe that described injection system comprises conical guiding device and is communicated with compressed air source, the center line of described guiding device and the center line of anti-blowpipe are on the same line, the top of the top of described guiding device and the end face of anti-blowpipe or guiding device is stretched in anti-blowpipe, and the bottom surface of guiding device is just to filtering the filter course between room follower rollers bottom and bottom head roll.Guiding device is connected with anti-blowpipe through fixture; Fixture comprises the brace be connected with guiding device, described brace structure in the form of sheets, and the axis of described guiding device is in the plane at brace place.Described injection system also comprises breather pipe, and described breather pipe is communicated with multiple anti-blowpipe.Described bottom head roll and be equipped with receipts ash bucket in the below of filtering the filter course between room follower rollers bottom.Described filter course one end is connected on top drive cylinder, the other end successively through follower rollers and be connected to bottom head roll on.Described top drive cylinder and bottom head roll are by drive motors driven rotary, and be connected with decelerator between described top drive cylinder and drive motors, described bottom head roll and drive motors are connected with decelerator.
Claims (9)
1. three grades of air filtering systems, comprise filtration room, low efficient filter, medium effeciency filter and high efficiency particulate air filter is provided with in described filtration room, access path is provided with between described low efficient filter and medium effeciency filter, access path is provided with between described medium effeciency filter and high efficiency particulate air filter, it is characterized in that, described medium effeciency filter comprises the follower rollers being arranged on the top drive cylinder filtered in room, bottom head roll and being arranged between top drive cylinder and bottom head roll, is alternately arranged on and filters in room about described follower rollers; Described top drive cylinder, follower rollers and bottom head roll are coated with filter course, are equipped with injection system filtering above the filter course between room follower rollers bottom and bottom head roll; The anti-blowpipe that described injection system comprises conical guiding device and is communicated with compressed air source, the center line of described guiding device and the center line of anti-blowpipe are on the same line, the top of the top of described guiding device and the end face of anti-blowpipe or guiding device is stretched in anti-blowpipe, and the bottom surface of guiding device is just to filtering the filter course between room follower rollers bottom and bottom head roll.
2. three grades of air filtering systems according to claim 1, it is characterized in that, described guiding device is connected with anti-blowpipe through fixture.
3. three grades of air filtering systems according to claim 2, it is characterized in that, described fixture comprises the brace be connected with guiding device, described brace structure in the form of sheets, and the axis of described guiding device is in the plane at brace place.
4. three grades of air filtering systems according to claim 3, is characterized in that, the outer wall of described guiding device is evenly provided with at least two braces.
5. three grades of air filtering systems according to claim 1, is characterized in that, connection two fixture symmetrical on the outer wall of described guiding device and the outer wall of anti-blowpipe, described fixture is laminated structure.
6., according to the arbitrary three grades of described air filtering systems of claim 1-5, it is characterized in that, described injection system also comprises breather pipe, and described breather pipe is communicated with multiple anti-blowpipe.
7. three grades of air filtering systems according to claim 6, is characterized in that, described bottom head roll and be equipped with receipts ash bucket in the below of filtering the filter course between room follower rollers bottom.
8. three grades of air filtering systems according to claim 7, is characterized in that, described filter course one end is connected on top drive cylinder, the other end successively through follower rollers and be connected to bottom head roll on.
9. three grades of air filtering systems according to claim 8, it is characterized in that, described top drive cylinder and bottom head roll are by drive motors driven rotary, be connected with decelerator between described top drive cylinder and drive motors, described bottom head roll and drive motors are connected with decelerator.
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| CN201410689027.6A CN104492173B (en) | 2014-11-26 | 2014-11-26 | Three-stage air filtration system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105089806A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Three-stage air filtering system with efficient noise elimination function |
| CN105089789A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Multi-stage integrated form high-efficiency noise elimination filter system for air purification of combustion gas turbine |
| CN112682176A (en) * | 2020-12-22 | 2021-04-20 | 中国船舶重工集团公司第七0三研究所 | Dust exhaust system and dust exhaust method for gas turbine inlet air filter device |
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| CN105089789A (en) * | 2015-08-21 | 2015-11-25 | 成都博世德能源科技股份有限公司 | Multi-stage integrated form high-efficiency noise elimination filter system for air purification of combustion gas turbine |
| CN112682176A (en) * | 2020-12-22 | 2021-04-20 | 中国船舶重工集团公司第七0三研究所 | Dust exhaust system and dust exhaust method for gas turbine inlet air filter device |
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