CN102188856A - Deep-layer filtering type air filtering medium - Google Patents
Deep-layer filtering type air filtering medium Download PDFInfo
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- CN102188856A CN102188856A CN2010102213945A CN201010221394A CN102188856A CN 102188856 A CN102188856 A CN 102188856A CN 2010102213945 A CN2010102213945 A CN 2010102213945A CN 201010221394 A CN201010221394 A CN 201010221394A CN 102188856 A CN102188856 A CN 102188856A
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- type air
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- depth filtration
- filtration type
- filtration media
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
- F02C7/052—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with dust-separation devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0208—Single-component fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0622—Melt-blown
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0627—Spun-bonded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The present invention discloses a deep-layer filtering type air filtering medium which is used for purifying inlet air of a gas turbine and inlet air of a compressor, wherein the air filtering medium comprises the following components: a first layer which is composed of static fiber nonwoven fabric with a fineness of 0.5-6 denier and a spun-bonded supporting layer for collecting large particles; a middle layer which is composed of hot rolling nonwoven fabric that is manufactured by the synthetic fiber with a thickness of 6-20 denier for enlarging a dust accommodation amount; and a bendable final layer which is composed of superfin static meltblown fabric with a fineness of 0.07-0.9 denier for agglomerating particles (such as fine dust) thereby preventing pressure drop increase and enlarging the dust accommodation amount. The deep-layer filtering type air filtering medium has the following advantages: lower pressure drop, no requirement for a filtering cylinder cleaning process, higher dust accommodation amount, high water preventing performance and high water resistance.
Description
Technical field
The present invention relates to a kind of in-depth filtration type air filtration media that in the industrial circle of gas turbine type power plant that uses gas turbine or use large-scale compressor, is used for purifying gas expander inlet air and suction port of compressor air, also relate to the air filter cylinder (airfilter cartridge) that uses this in-depth filtration type air filtration media.More specifically, the present invention relates to a kind of in-depth filtration type air filtration media, this air filtration media comprises static meltblown fibers (electrostatic melt-blown fiber), static staple fibre (electrostatic staple fiber), hot rolling supporting layer (thermal-bonded support layer) and low-melting fiber (low-melted fiber), this air filtration media is flexible, has low pressure drop (pressure drop), the high dust containing capacity (dust holdingcapacity) and excellent water proofing property (water repellency) and the water-resistance (water resistance) that are used for collecting granules (as dust etc.) the invention still further relates to the air filter cylinder of this air filtration media of use.
Background technology
Generally speaking, use the generating of gas turbine to implement: to use the purification utensil air by following process, use this cleaned air passes of compressor compresses, the air that will compress is then introduced the combustion chamber, the air burning gaseous fuel that uses this compression is to produce high temperature and high pressure gas, the high temperature and high pressure gas that use to produce makes the gas turbine rotation obtaining rotary power, and uses this rotary power that obtains to make generator operation to produce.
This gas turbine is owing to have and can use low quality fuel and be not easy the advantage that breaks down and vibrate, also owing to compare the advantage that has simple, light, easy operating and produce a large amount of electric energy with interactive internal combustion engine or steam turbine, so this gas turbine has been widely used in generator, engine, steamer, the aircraft etc.
As a rule, in order to purify the air that enters gas turbine, mainly use the air filter cylinder of surface filtration, this air filter cylinder needs dust removal process.
Fig. 1 is the conventional apparatus that is used for purifying gas expander inlet air.As shown in Figure 1, the air 1 of the outside pollution of introducing passes the inlet fan housing 19 that is arranged on filter housing 20 front ends, pass through the air filter cylinder 3 of surface filtration again, particle (as dust etc.) is collected on the surface of air filter cylinder 3, to purify the air of described pollution, afterwards the air that purifies is introduced intake silencer 22.
By in air filter cylinder 3, injecting the compressed air 4 that provides by the compressor that is used for dedusting, thereby remove the lip-deep particle that is collected in air filter cylinder 3 (as dust etc.) with torch tip.As shown in Figure 2, when the pressure drop of air filter cylinder 3 reached final pressure drop, the compressor that is used for dedusting automatically and periodically injected compressed air the air filter cylinder.
As mentioned above, because traditional surface filtration type air filter cylinder adopts the method collecting granules (as dust etc.) of surface filtration, therefore, the problem that this air filter cylinder exists is that the pressure drop meeting increases sharply, the time that makes its pressure drop reach final pressure drop shortens, thereby has shortened the cycle of injecting compressed air; Also there is the problem of energy output when thereby average pressure drop is high to have reduced generating in this air filter cylinder.
Above-mentioned surface filtration type air filter cylinder is to use the air filtration media on the spider web top layer that comprises the filter paper made by wet nonwoven and form by EFI polyethylene on the surface of this filter paper to make.
Usually, the air cleaner of the surface filtration of the various air that are used for purifying gas has used and has registered patent.For example, U.S. Patent No. 4720292 discloses a kind of air cleaner that is used for gas turbine, and korean patent application No.10-2003-7003226 discloses the method for filtered air in gas turbine engine systems.
In addition, Korea patent registration No.10-0304596 discloses a kind of air cleaner and manufacture method thereof of purifying gas expander inlet air, this air cleaner shows excellent filter effect and has long service life, this is because the fold of surface filtration type air filtration media is handled termly, and this air cleaner can also burn and utilization again, and this is because its case is to be made by the synthetic resin of injection moldable.In order to solve the burning problem, Korea patent registration No.10-0308701 discloses and has a kind ofly considered the method for separation of air filter the cover from air cleaner.Korean Utility Model registration No.20-0270415 discloses a kind of surface filtration type air cleaner that is used for gas turbine, wherein, all provide big line (thread) and little line on every filter paper, make filter paper arrange with specific spacing, and the particle (as dust etc.) that enters gas turbine can more easily be removed by little line, thereby has increased the efficient and the life-span of air cleaner.Korean Utility Model registration No.20-0270416 discloses a kind of surface filtration type air filter cylinder that is used for gas turbine, this air filter cylinder comprises cylindrical air filtration media, around the inside and outside interior sieve core (inner screen cores) of described air filtration media and outer sieve core, fixingly sieve core in described and sieve the lid of upper and lower of core and the rubber ring that seals the lid of described and bottom outward, make described cylindrical air filtration media bending to increase the surface area of this cylindrical air filtration media.
Yet, the problem that the air cleaner that is used to purify air of above-mentioned routine exists is: owing to be used to prevent the high-temperature heat treatment that the fold part of air filtration media is smoothed, thereby the lip-deep coat that causes being formed at this air cleaner is destroyed, make pore shrink and be damaged, thereby increase pressure differential.
In addition, the problem that the air cleaner that is used to purify air of above-mentioned routine also exists is: owing to mold pressing processing causes pore to stop up and intensity decline, make that the gas circuit major part of air filtration media is blocked, thereby greatly reduced the efficient of air cleaning.
In order to address the above problem, the layer that constitutes air filtration media is combined.The layer of this combination is formed by various nonwoven, these nonwoven by hot rolling, resin-bonding, acupuncture (needle punching), spin glutinous (spun bonding), spin lace (spun lacing), solution spinning (solution spinning) etc. makes.
The mechanism of collecting dust granule is theory of mechanics and electrostatic principle.When particle was collected with electrostatic principle, the layer of air filtration media adopted meltblown to form in a large number.
Especially, when the fiber of the layer that forms air filtration media was superfine fibre, this superfine fibre was used to make air cleaner efficiently.But the problem that this air cleaner efficiently exists is that the collecting granules of relatively small amount is gathered.
In addition, comprising the problem that is also existed by the air filtration media with large diameter quadrangle or circular fibroplastic static hot rolling layer or acupuncture layer is: though a large amount of relatively collecting granules is gathered, the collection efficiency of this air filtration media can reduce.
Recently, in order to address these problems, the air filtration media that has adopted fibrage to form by microfibre or synthetic fibers.But the problem that this air cleaner also exists is: have only a spot of collecting granules assembled and collection efficiency very low, thereby limited the application of this air cleaner.
In a word, generally adopt surface filtration type air filter cylinder to purify the contaminated air that feeds gas turbine engine systems at present.But this surface filtration type air filter cylinder only continues higher and removes and just can move when the dust removal process that sticks to lip-deep staubosphere is implemented continuously in its average pressure drop.
Therefore, the generating efficiency of air filtering system is owing to the average pressure drop of surface filtration type air filter cylinder continues higher the reduction, and being used to prepare the compressed-air actuated compressor that cleans filter cylinder must move continuously, because the operation continuously of dust cleaning course.In addition, when dust removal process moved, the size of the hole of air filtration media can increase because of compressed-air actuated injection, made particle (as ashes etc.) pass the hole of expansion, thereby caused fret wear or dust to be bonded on the surface of blade.
Summary of the invention
Therefore, formed the present invention based on the problems referred to above that occur in the prior art, the air filter cylinder that the purpose of this invention is to provide a kind of in-depth filtration type air filtration media and use this air filtration media, in described air filtration media, pressure drop is kept lower, do not need the filter cylinder cleaning course, and hole size is constant.
Especially, the invention provides a kind of in-depth filtration type air filtration media that is used for purifying gas expander inlet air and suction port of compressor air, this air filtration media comprises: acupuncture spin glutinous carded fiber layer, this layer is formed on the supporting layer, as collecting oarse-grained pre-air cleaner; The static staple fibre layer of hot rolling, this layer be used to increase collection agglomeration of particles amount and support described supporting layer; The ultra-fine meltblown layer of static, this layer make particle (as dust etc.) agglomerating, thereby prevent that pressure drop from increasing, and have low pressure drop and high dust containing capacity concurrently.
In addition, the present invention also provides a kind of in-depth filtration type air filter cylinder, this air filter cylinder is configured such that the interval between the fold geometry of air cleaner can keep evenly, and the PUR on the fold top is carried out stabilization processes and is coated with gluing at the lip-deep recess of air filtration media.
In order to achieve the above object, one aspect of the present invention provides a kind of in-depth filtration type air filtration media that is used for purifying gas expander inlet air and suction port of compressor air, this air filtration media comprises: ground floor, this layer is the electrostatic fibre nonwoven (electrostatic staplenonwoven fabric) at 0.5-6 dawn (denier) by fineness and spins glutinous supporting layer and form, is used to collect large-sized particle; Intermediate layer, this layer are that the fabric hot rolled nonwoven fabrics that the synthetic fibers at 6-20 dawn are made forms by fineness, are used to increase dust containing capacity; And flexible final layer, this layer is that the ultra-fine electrostatic meltblown fabric at 0.07-0.9 dawn forms by fineness, make particle (as dust etc.) agglomerating, thereby prevent that pressure drop from increasing and improving dust containing capacity, wherein, every square metre weight of this in-depth filtration type air filtration media is 100-400g, and the efficient in NaCl process (NaCl process) is to press down more than 95% and at 5.3cm/sec to reduce to below the 4.5mm water column (mm Aq), and this air filtration media is flexible.
In this article, described ground floor can comprise: spin glutinous supporting layer 9, this layer is that the electrostatic fibre net of the low-melting fiber at 15 dawn forms by containing fineness; And electrostatic fibre nonwoven 8, the fineness of this electrostatic fibre nonwoven is the 0.5-6 dawn, and every square metre weight is 10-100g, and efficient is to press down more than 40% and at 5.3cm/sec to reduce to below the 0.5mm water column.
In addition, the fabric hot rolled nonwoven fabrics that constitutes described intermediate layer can comprise the inside part of being made by 100% low melting point polyester fiber (nuclear) and the exterior portion of being made by 100% conventional polyester fiber (shell), perhaps can comprise the inside part of making by 50% low melting point polyester fiber (nuclear) and the exterior portion of making by 50% conventional polyester fiber (shell), wherein, the fineness of described low melting point polyester fiber is the 6-20 dawn, press down at 5.3cm/sec and to reduce to the 0.5mm water column, and be crooked easily under the 40-200g every square metre weight.
In addition, every square metre the weight that constitutes the ultra-fine electrostatic meltblown fabric of described final layer is 5-70g, and the collection efficiency in the NaCl process is to press down more than 95% and at 5.3cm/sec to reduce to below the 3.0mm water column.
In addition, the ultra-fine electrostatic meltblown fabric of described final layer can be configured such that this ultra-fine electrostatic meltblown fabric have one deck or two-layer more than.
In addition, the electrostatic fibre nonwoven of described ground floor can be configured such that this electrostatic fibre nonwoven have one deck or two-layer more than.
The present invention also provides a kind of in-depth filtration type air filter cylinder on the other hand, and this air filter cylinder comprises: the lid on top and the lid of bottom, and the lid on this top and the lid of bottom are fixed on in-depth filtration type air filtration media between the two; Epoxy sealing material (sealer), this epoxy sealing material make the lid on described top and the lid of bottom be bonded in described in-depth filtration type air filtration media, thereby make described in-depth filtration type air filtration media sealing; Bandage (strap), this bandage be fixed on described in-depth filtration type air filtration media around; The sept of hot melt (spacer), the sept of this hot melt use adhesive with fixing fixed interval inside and outside at described in-depth filtration type air filtration media, make the interval in described medium knee remain unchanged.
Description of drawings
Below in conjunction with the detailed description of accompanying drawing above-mentioned or other purpose, characteristics and advantage of the present invention more clearly understood:
Fig. 1 represents to provide the schematic diagram of air filtering system of the surface filtration type air filter cylinder of the routine that is used for purifying gas expander inlet air and suction port of compressor gas;
Fig. 2 is the pressure drop and the chart that provides according to the pressure drop contrast of the air filtering system of in-depth filtration type air filter cylinder of the present invention of the air filtering system of the routine that will provide surface filtration type air filter cylinder;
Fig. 3 represents the photo of each layer of the in-depth filtration type air filtration media that use electron microscope observation according to the present invention arrives;
Fig. 4 represents the sectional view according to each layer of in-depth filtration type air filtration media of the present invention;
Fig. 5 represents the sectional view according to the ground floor of in-depth filtration type air filtration media of the present invention;
Fig. 6 represents the sectional view according to the intermediate layer of in-depth filtration type air filtration media of the present invention;
Fig. 7 represents the sectional view according to the final layer of in-depth filtration type air filtration media of the present invention;
Fig. 8 represents that this air filter cylinder is the finished product of in-depth filtration type air cleaner according to the schematic diagram of the profile of in-depth filtration type air filter cylinder of the present invention;
Fig. 9 is will be according to the pressure drop of in-depth filtration type air filter cylinder of the present invention with the pressure drop of the variation of dust load capacity and the existing in-depth filtration type air filter cylinder chart with the variation contrast of dust load capacity;
Figure 10 is will be according to the chart of the dust containing capacity contrast of the dust containing capacity of in-depth filtration type air filter cylinder of the present invention and existing in-depth filtration type air filter cylinder;
Figure 11 is will be according to the chart of total dust collection efficiency contrast of total dust collection efficiency of in-depth filtration type air filter cylinder of the present invention and existing in-depth filtration type air filter cylinder;
Figure 12 is will be according to the chart of the part dust collection efficiency contrast of the part dust collection efficiency of in-depth filtration type air filter cylinder of the present invention and existing in-depth filtration type air filter cylinder;
Figure 13 represents to provide the schematic diagram according to the air filtering system of the in-depth filtration type air filter cylinder that is used for purifying gas expander inlet air and suction port of compressor air of the present invention.
The specific embodiment
Hereinafter, will be explained in detail preferred implementation of the present invention in conjunction with the accompanying drawings.In addition, in description of the invention, when the detailed description of determining correlation technique can make of the present invention when wanting point fuzziness, will the such description of omission.
Fig. 3 represents the photo of each layer of the in-depth filtration type air filtration media that use electron microscope observation according to the present invention arrives, and Fig. 4 represents the sectional view according to each layer of in-depth filtration type air filtration media of the present invention.
As shown in Figure 3 and Figure 4, in-depth filtration type air filtration media according to the present invention is a Combined Electrostatic fabric nonwoven cloth medium, this Combined Electrostatic fabric nonwoven cloth medium comprises: ground floor 5, this layer is the electrostatic fibre nonwoven at 0.5-6 dawn by fineness and spins glutinous supporting layer and form, be used to collect large-sized particle; Intermediate layer 6, this layer are that the fabric hot rolled nonwoven fabrics that the synthetic fibers at 6-20 dawn are made forms by fineness, are used for increasing dust containing capacity; And flexible final layer, this layer is that the ultra-fine electrostatic meltblown fabric at 0.07-0.9 dawn forms by fineness, makes particle (as dust etc.) agglomerating, thereby prevents that pressure drop from increasing and the increase dust containing capacity.
Every square metre weight of three layers Combined Electrostatic fabric nonwoven cloth medium is 100-400g, and the efficient in the NaCl process is more than 95%, be below the 4.5mm water column in the pressure drop under the flow velocity of 5.3cm/sec, and this medium is flexible.The reason of above-mentioned numerical limits is that effect of the present invention is best in this number range.
In addition, described three layers Combined Electrostatic fabric nonwoven cloth medium comprises additive, as undersaturated carboxylic acid, aliphatic slaine, waterproofing agent (water repellant), ultra-violet stabilizer, antioxidant, colouring agent, antistatic additive etc.
The fineness of forming the electrostatic fibre nonwoven of described ground floor is the 0.5-6 dawn.
In addition, form the fabric hot rolled nonwoven fabrics in described intermediate layer and made by low-melting polyester fiber, this polyester fiber is that fineness is the staple fibre at 6-20 dawn.
In addition, the fineness of forming the ultra-fine electrostatic meltblown fabric of described final layer is the 0.07-0.9 dawn.
The reason of above-mentioned numerical limits is that effect of the present invention is best in this number range.
Fig. 5 represents the sectional view according to the ground floor 5 of in-depth filtration type air filtration media of the present invention.
As shown in Figure 5, described ground floor 5 comprises: spin glutinous supporting layer 9, this layer is that the electrostatic fibre net of the low-melting fiber at 15 dawn forms by containing fineness; And electrostatic fibre nonwoven 8, the fineness of this electrostatic fibre nonwoven is the 0.5-6 dawn, and every square metre weight is 10-100g, and the efficient in the NaCl process is more than 40%, and the pressure drop under 5.3cm/sec is below the 0.5mm water column.At this moment, effect of the present invention is best in this number range.
Be that the glutinous supporting layer 9 that spins that the electrostatic fibre net of the low-melting fiber at 15 dawn forms forms described ground floor why with described electrostatic fibre nonwoven 8 with by containing fineness, its reason is to collect the big dust granule that contains in the air at this, undersized dust granule must be delivered to described intermediate layer then, because described ground floor must be used as prefilter.That is to say, in order to filter big dust granule effectively, and reduce pressure drop, described ground floor must have loose fibre structure and electrostatic effect, making dust granule pass through electrostatic force collects, and the dust granule that makes collection makes agglomerating dust granule form big pelletizing by electrostatic effect and agglomerating thus.
Described electrostatic fibre nonwoven 8 can be constructed with one deck or two-layer more than because have the two-layer dust containing capacity that can improve described air filtration media when above at this electrostatic fibre nonwoven.
Fig. 6 represents the sectional view according to the intermediate layer 6 of in-depth filtration type air filtration media of the present invention.
As shown in Figure 6, described intermediate layer 6 is formed by flexible fabric hot rolled nonwoven fabrics 10.In the present invention, described fabric hot rolled nonwoven fabrics 10 comprises the inside part (nuclear) made by 100% low melting point polyester fiber and by the exterior portion (shell) that 100% conventional polyester fiber is made, perhaps comprises the inside part of being made by 50% low melting point polyester fiber (nuclear) and the exterior portion of being made by 50% conventional polyester fiber (shell).The fineness of described low melting point polyester fiber is the 6-20 dawn, and crooked easily when every square metre weight is 40-200g.In addition, described fabric hot rolled nonwoven fabrics 10 has the pressure drop below the 0.5mm water column under 5.3cm/sec.
The reason of above-mentioned numerical limits is that effect of the present invention is best in this number range.
Described fabric hot rolled nonwoven fabrics 10 contains the non-polar material of 95-99.9 weight %, the ferroelectric material of 0.1-5 weight % and the waterproofing agent of 0.1-5 weight %, and described ferroelectric material is a polar material.
Why form described intermediate layer with described low melting point polyester fiber, its reason is when being spun into described low-melting point polyester in the staple fibre, and the uniformity of this staple fibre improves, and permeability increases.
Fig. 7 represents the sectional view according to the final layer 7 of in-depth filtration type air filtration media of the present invention.
As shown in Figure 7, described final layer 7 is formed by ultra-fine electrostatic meltblown fabric 11.In the present invention, every square metre weight of described ultra-fine electrostatic meltblown fabric 11 is 5-70g, and the efficient in the NaCl process is more than 95%, and the pressure drop under 5.3cm/sec is below the 3.0mm water column.
Described ultra-fine electrostatic meltblown fabric 11 contains the ferroelectric material of 0.1-5 weight % and the waterproofing agent of 0.1-5 weight %.In addition, the fineness of described ultra-fine electrostatic meltblown fabric is the 0.07-0.9 dawn.The reason of numerical limits is that effect of the present invention is best in this number range.
Why form described final layer with described ultra-fine electrostatic meltblown fabric 11, its reason is the filter effect excellence (because the fineness of this ultra-fine electrostatic meltblown fabric is little) of described air filtration media, and the dust containing capacity of described air filtration media has improved (because this ultra-fine electrostatic meltblown fabric can form thin dust effectively, and electrostatic effect is provided for described air filtration media).
Described ultra-fine electrostatic meltblown fabric 11 can be constructed with one deck or two-layer more than, because have two-layer when above at described ultra-fine electrostatic meltblown fabric, the dust collection efficiency of described air filtration media can improve, thereby and the dust containing capacity of this air filtration media is increased rapidly.
Fig. 8 represents to use the schematic diagram of the profile of the in-depth filtration type air filter cylinder that in-depth filtration type air filtration media of the present invention makes.
As shown in Figure 8, described in-depth filtration type air filter cylinder comprises the lid 13 on the top of in-depth filtration type air filtration media 16 in the middle of being fixed on and the lid 14 of bottom; Make the lid 13 on described top and the lid 14 of bottom be bonded in the epoxy sealing material 15 of described in-depth filtration type air filtration media 16, thereby make described in-depth filtration type air filtration media sealing.
In addition, described air filter cylinder can also comprise three bandages 17 on every side that are fixed on described in-depth filtration type air filtration media 16.
In addition, described air filter cylinder can also comprise the sept 18 of linear hot melt, the sept of this hot melt (18) uses adhesive with fixing fixed interval inside and outside at the flexible air filtration media 16 of described in-depth filtration type, makes that the distance maintaining between the knee of this air filtration media is constant.The sept 18 of described hot melt is shown as horizontal white line in Fig. 8.
When described air filter cylinder was installed on the porose plate, described air filter cylinder can also comprise the rubber ring 12 on the lid 13 that is formed at described top, was used for sealing described air filter cylinder.
Fig. 9 is will be according to the pressure drop of in-depth filtration type air filter cylinder of the present invention with the pressure drop of the variation of dust load capacity and the existing in-depth filtration type air filter cylinder chart with the variation contrast of dust load capacity.
As can see from Figure 9, the growth gradient of the pressure drop of in-depth filtration type air filter cylinder of the present invention is lower than the growth gradient of the pressure drop of existing in-depth filtration type air filter cylinder, and be the twice of existing in-depth filtration type air filter cylinder the running time that makes the pressure drop of in-depth filtration type air filter cylinder of the present invention reach final pressure drop.
Figure 10 is will be according to the chart of the dust containing capacity contrast of the dust containing capacity of in-depth filtration type air filter cylinder of the present invention and existing in-depth filtration type air filter cylinder.As can be seen from Figure 10, the dust containing capacity of in-depth filtration type air filter cylinder of the present invention is about the twice of existing in-depth filtration type air filter cylinder.
Figure 11 is will be according to the chart of total dust collection efficiency contrast of total dust collection efficiency of in-depth filtration type air filter cylinder of the present invention and existing in-depth filtration type air filter cylinder.As can be seen from Figure 11, the total dust collection efficiency according to in-depth filtration type air filter cylinder of the present invention is higher than existing in-depth filtration type air filter cylinder.
Figure 12 is will be according to the part dust collection efficiency (fractional dust collection efficiency) of in-depth filtration type air filter cylinder of the present invention and the chart of the part dust collection efficiency contrast of existing in-depth filtration type air filter cylinder.
As can be seen from Figure 12, when granular size is more than 4 microns the time, the part dust collection efficiency of in-depth filtration type air filter cylinder of the present invention is similar to existing in-depth filtration type air filter cylinder, all is approximately 100%.But when granular size is during less than 4 microns, the part dust collection efficiency of in-depth filtration type air filter cylinder of the present invention is higher than existing in-depth filtration type air filter cylinder.
Figure 13 represents to provide the schematic diagram of the air filtering system of the surface filtration type air filter cylinder 3 of using the in-depth filtration type air filter cylinder 21 that is used for purifying gas expander inlet air and suction port of compressor air according to the present invention to replace routine.
As can be seen from Figure 13, replace conventional surface filtration type air filter cylinder 3 with in-depth filtration type air filter cylinder 21 of the present invention, thereby do not need to be used to clean the compressed air of filter cylinder, therefore do not need the filter cylinder cleaning device.
According to foregoing description, the invention has the advantages that: owing to replace conventional surface filtration type air filter cylinder with in-depth filtration type air filter cylinder, thereby the cleaning course that does not need filter cylinder, therefore and do not need to consume the power that is used for operate compressor, average pressure drop is kept lower (referring to Fig. 2), thereby increased the power that is used to generate electricity, and particle (as dust etc.) and salt can easily be removed, and can prevent the wearing and tearing of the incrustation and the turbine blade surface of compressor blade, thereby make the efficient and the maximization in service life of gas turbine or compressor.Therefore, the present invention industrial be applicatory.
Though with regard to disclosing of illustrative purpose preferred implementation of the present invention, one skilled in the art will appreciate that under situation about not deviating from, can make various modifications, interpolation or alternative by the disclosed scope and spirit of the present invention of appended claims.
Claims (7)
1. in-depth filtration type air filtration media, this in-depth filtration type air filtration media comprises:
Ground floor, this ground floor is that the electrostatic fibre nonwoven at 0.5-6 dawn forms by spinning glutinous supporting layer and fineness, is used for collecting big particle;
Intermediate layer, this intermediate layer are that the fabric hot rolled nonwoven fabrics that the synthetic fibers at 6-20 dawn are made forms by fineness, are used for increasing dust containing capacity; And
Flexible final layer, this flexible final layer are that the ultra-fine electrostatic meltblown fabric at 0.07-0.9 dawn forms by fineness, make particle such as thin dust agglomerating, thereby prevent the pressure drop rising and dust containing capacity is doubled;
Wherein, every square metre weight of described in-depth filtration type air filtration media is 100-400g, efficient in the NaCl process is more than 95%, and the pressure drop under 5.3cm/sec is below the 4.5mm water column, and this in-depth filtration type air filtration media is flexible.
2. in-depth filtration type air filtration media according to claim 1, wherein, described ground floor comprises: spin glutinous supporting layer (9), this spins glutinous supporting layer (9) is that the electrostatic fibre net of the low-melting fiber at 15 dawn forms by containing fineness; And electrostatic fibre nonwoven (8), the fineness of this electrostatic fibre nonwoven (8) is the 0.5-6 dawn, and every square metre weight is 10-100g, and the efficient in the NaCl process is more than 40%, and the pressure drop under 5.3cm/sec is below the 0.5mm water column.
3. in-depth filtration type air filtration media according to claim 1, wherein, the described fabric hot rolled nonwoven fabrics that constitutes described intermediate layer comprises the inside part of being made by 100% low melting point polyester fiber and the exterior portion of being made by 100% conventional polyester fiber, perhaps comprise the inside part of making by 50% low melting point polyester fiber and the exterior portion of making by 50% conventional polyester fiber, wherein, the fineness of described low melting point polyester fiber is the 6-20 dawn, pressure drop under 5.3cm/sec is the 0.5mm water column, and is crooked easily under the 40-200g every square metre weight.
4. in-depth filtration type air filtration media according to claim 1, wherein, every square metre the weight that constitutes the ultra-fine electrostatic meltblown fabric of described final layer is 5-70g, and the efficient in the NaCl process is more than 95%, and the pressure drop under 5.3cm/sec is below the 3.0mm water column.
5. in-depth filtration type air filtration media according to claim 1, wherein, the ultra-fine electrostatic meltblown fabric of described final layer be configured to have one deck or two-layer more than.
6. in-depth filtration type air filtration media according to claim 1, wherein, the electrostatic fibre nonwoven of described ground floor be configured to have one deck or two-layer more than.
7. in-depth filtration type air filter cylinder, this in-depth filtration type air filter cylinder comprises:
The lid on top and the lid of bottom, the lid on described top and the lid of bottom are fixed on any described in-depth filtration type air filtration media among the claim 1-6 between the lid of the lid on top and bottom;
Epoxy sealing material, this epoxy sealing material make the lid on described top and the lid of bottom be bonded in described in-depth filtration type air filtration media, thereby make described in-depth filtration type air filtration media sealing;
Bandage, this bandage be fixed on described in-depth filtration type air filtration media around;
The sept of hot melt, the sept of this hot melt with fixing fixed interval inside and outside at the flexible air filtration media of described in-depth filtration type, makes that the distance maintaining in described medium knee is constant by adhesive.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0022219 | 2010-03-12 | ||
| KR1020100022219A KR101064959B1 (en) | 2010-03-12 | 2010-03-12 | Depth filtration air filter media for gas turbine in-take air and turbo compressor in-take air purification and depth filtration air filter cartridge using thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102188856A true CN102188856A (en) | 2011-09-21 |
| CN102188856B CN102188856B (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102213945A Active CN102188856B (en) | 2010-03-12 | 2010-07-01 | Deep-layer filtering type air filtering medium and air filtering cartridge |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4917161B2 (en) |
| KR (1) | KR101064959B1 (en) |
| CN (1) | CN102188856B (en) |
| MY (1) | MY156867A (en) |
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| CN103089714A (en) * | 2013-01-23 | 2013-05-08 | 成都瑞柯林工程技术有限公司 | Turbine type gas compressor front end dust remover and filter element thereof |
| CN104271215A (en) * | 2012-05-08 | 2015-01-07 | 株式会社因百奥尼尔 | Filter medium having dual-layer structure consisting of high-density layer and low-density layer |
| CN104379233A (en) * | 2012-05-15 | 2015-02-25 | 卡菲尔有限公司 | Multilayer filter media |
| CN105194931A (en) * | 2015-10-26 | 2015-12-30 | 苏州明盛化纤有限公司 | Novel dust removing cloth |
| CN107096300A (en) * | 2016-02-22 | 2017-08-29 | 现代自动车株式会社 | Air cleaner for fuel-cell vehicle |
| CN107847824A (en) * | 2015-06-30 | 2018-03-27 | 3M创新有限公司 | Including with the Filter cartridge and method of manufacture and use thereof of the filter medium of the end of bonding mode sealing margin |
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| KR101409903B1 (en) * | 2012-09-20 | 2014-06-20 | 엘지전자 주식회사 | A water purifier |
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Also Published As
| Publication number | Publication date |
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| JP4917161B2 (en) | 2012-04-18 |
| CN102188856B (en) | 2013-09-18 |
| JP2011190795A (en) | 2011-09-29 |
| KR101064959B1 (en) | 2011-09-16 |
| MY156867A (en) | 2016-04-15 |
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