CN105709478A - Oil product circulating purification device based on polyamide melt-blown filter element - Google Patents
Oil product circulating purification device based on polyamide melt-blown filter element Download PDFInfo
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- CN105709478A CN105709478A CN201610159184.5A CN201610159184A CN105709478A CN 105709478 A CN105709478 A CN 105709478A CN 201610159184 A CN201610159184 A CN 201610159184A CN 105709478 A CN105709478 A CN 105709478A
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- polyamide
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- oil
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 71
- 229920002647 polyamide Polymers 0.000 title claims abstract description 71
- 238000000746 purification Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 133
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 239000003921 oil Substances 0.000 claims description 102
- 238000001914 filtration Methods 0.000 claims description 40
- 239000011148 porous material Substances 0.000 claims description 38
- 239000000295 fuel oil Substances 0.000 claims description 23
- 239000000446 fuel Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 4
- 238000011175 product filtration Methods 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 239000010721 machine oil Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 55
- 238000000926 separation method Methods 0.000 abstract description 22
- 238000005260 corrosion Methods 0.000 abstract description 7
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- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 58
- 230000000694 effects Effects 0.000 description 15
- 239000002283 diesel fuel Substances 0.000 description 13
- 239000012535 impurity Substances 0.000 description 10
- 239000003502 gasoline Substances 0.000 description 9
- 239000008187 granular material Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004594 Masterbatch (MB) Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
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- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 2
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- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101100293606 Hordeum vulgare NAS8 gene Proteins 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
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- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
- B01D29/213—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets having a concertina shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
- C10G31/09—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by filtration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/30—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by heating means
Abstract
The invention discloses an oil product circulating purification device based on a polyamide melt-blown filter element. The oil product circulating purification device comprises an oil storage device, a hydraulic pump and a filter which are connected through pipelines; an oil product needing to be filtered is pumped into the filter from the oil storage device to be filtered by the hydraulic pump through the pipeline and then flows back into the oil storage device; the filter filters the oil product by adopting the polyamide melt-blown filter element, the filter element comprises an upper end cover, a lower end cover and a polyamide filter material, the polyamide filter material is obtained by treating a polyamide material through a melt-blowing technology, and superfine fibers blown out through the technology are mutually bonded and wound to form a hollow barrel-shaped structure; the filter material is of a loose structure, and filter holes of the different hole diameters are formed; the hole diameter size of the filter holes is distributed in the mode that the hole diameter size is sequentially and gradually decreased from the outer layer to the inner layer of the barrel-shaped structure. The oil product circulating purification device has the higher filter precision, assimilative capacity and oil-water separation capacity, has the advantages of resisting oil product corrosion, being high in reliability and the like and meets the filter requirement of the common oil products.
Description
Technical field
The invention belongs to environmental technology field, be specifically related to a kind of defecator for oil purification.
Background technology
Engine fuel is producing, is transporting and deposit and can produce and be mixed into a large amount of impurity in process.Clean fuel oil also can produce metal-oxide after storage a period of time, precipitate out the pollutant such as colloid, asphalitine.The fuel oil of severe contamination can cause that the abrasion at the positions such as electromotor injection system and combustor and carbon distribution generate so that electromotor fuel consumption in use for some time increases, the hurried rising of exhaust emissions amount.Solution general at present is to install oil product filter on the engine, removes the impurity in fuel oil, colloid, asphalitine and moisture etc., makes fuel oil clean.Clean fuel oil can improve efficiency of combustion thus saving fuel oil, reduction discharge；Also can reduce electromotor heel and toe wear, increasing service life of engine, make electromotor slow down along with the trend extending oil consumption increase of the time of use.
The oil product filter of domestic more than 98% uses wood pulp filter paper, high accuracy composite filter paper or wire netting to be filter material at present, to reach to remove the purpose of impurity and moisture in oil product.The circulating resistance of high accuracy filter paper is big, water environment capacity is poor, service life is short；Though wood pulp paper and wire netting have the advantage that circulating resistance is little, but filtering accuracy is low, filter efficiency is poor.These several filter materials all can not meet the requirement that in industrial processes, oil product is filtered by equipment, causes the problems such as equipment failure rate height, low, the lost of life of operational efficiency.
Current material melt-blown process is widely used in the manufacture of polypropylene material for core.Melt-blown is exactly that after high temperature is extruded, polymeric material is formed superfine cellosilk, and prepare into corresponding shape and structure, it is strong that polypropylene melt-blown filter material has water environment capacity, filtering accuracy advantages of higher, and it is prone to batch production, but it is currently only used for the filtration of air and water, this is because industrial oil generally all contains alkane, alkene, cycloalkane, aromatic hydrocarbon, polycyclic aromatic hydrocarbon and a small amount of sulfur, nitrogen compound etc., contact oil product can cause that polypropylene articles is dissolved corrosion for a long time, it is swelled into grume, lose filter capacity, therefore, polypropylene melt-blown filter material cannot be applied to industrial oil filtration art.
Therefore from the filtering perspective of industrial oil, it is badly in need of the melt-blown filter wanting a kind of special material to make through melt-blown process, and the advantage with conventional meltblown filter element, it is capable of withstanding the corrosion by oil products such as diesel oil, gasoline, ethanol simultaneously, and the Colophonium contained in oil product, water, dust, mechanical admixture etc. can be filtered, especially there is certain oil-water separation.
Application number be 200510040447.2 Chinese patent disclose " oil-water separating net of a kind of super-hydrophobic/super-oleophilic ", it is proposed to the thin film of and oleophylic hydrophobic at fabric web overlying lid layer, utilize the hydrophobic function of thin film, it is achieved the oil-water separation in oil product.This is the technical thought that current oil product filtration art is commonly used, namely adopts hydrophobicity filter material, is separated by water, and " dredging " aqueous of filter material can be more good from fuel oil, and its effect separating water is more good.But this film producing process of Problems existing is complicated, and other filtering function and index are not good, it is difficult to obtain practical popularization.
Summary of the invention
The present invention proposes a kind of oil product circulating purifying device based on polyamide melt-blown filter, it is possible to for the filtration of fuel oil or the oil product of non-fuel oil, it is achieved that the cleaning of oil product.For fuel oil, it is possible to improve fuel efficiency, reduce disposal of pollutants；For non-fuel oil, can in not shutdown situation circulating filtration, promote the cleannes of non-fuel oil, extend the service life of oil product, reduce equipment fault.
The concrete technical scheme of the present invention is as follows:
Oil product circulating purifying device based on polyamide melt-blown filter, including the Fuel Tanking Unit coupled by pipeline, hydraulic pump, cleaner and control unit, described hydraulic pump will need the oil product filtered suction filter from Fuel Tanking Unit to be back in Fuel Tanking Unit after filtering by pipeline again；
Described cleaner adopts polyamide melt-blown filter to carry out oil product filtration, described polyamide melt-blown filter includes upper end cover, bottom end cover and polyamide filter material, upper end cover and bottom end cover are fixed on the two ends of polyamide filter material, upper end cover and bottom end cover have at least an end cap to be provided with oil outlet, described polyamide filter material adopts polyamide material to be processed by melt-blown process, and the superfine fibre silk of its ejection is through bonding mutually and is wound around the hollow cylindrical structure made；Described filter material is open structure, forms the filter opening of different pore size；The size distribution mode of described filter opening is successively decrease gradually successively along tubular structure outer layer to internal layer pore size.
Above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, polyamide filter material thickness is 0.5-30mm, wherein the average pore size of cylinder portion outer layer filter opening is 10-100 μm, the average pore size of cylinder portion internal layer filter opening is 1-50 μm, the average diameter of meltblown fibers silk is 0.1-80 μm, and the porosity of filter material is more than 80%.
Above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, polyamide filter material thickness is 5-20mm, and the average pore size of cylinder portion outer layer is 20-40 μm, and the average pore size of cylinder portion internal layer is 10-20 μm, the average diameter range of meltblown fibers silk is 5-50 μm, and the porosity of filter material is more than 90%.
Above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, polyamide is PA6 and PA66.
Above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, filter element also includes the folded filter paper of tubular structure, and described folded filter paper and polyamide filter material are coaxially disposed, and are fixed on the inside of polyamide filter material by skeleton.
Above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, filter paper forms for high accuracy composite filter paper is folding；The average pore size of filter paper body is 1-100 μm, thickness 0.3-1.5mm.
Check valve that is above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, that be also included in pipeline to arrange, is used for preventing oil product from refluxing.
Overflow valve that is above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, that be also included in pipeline to arrange, in pipeline, pressure opens relief function time excessive.
Above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, oil purifier comprises heating unit, can Fuel Tanking Unit, pipeline or cleaner be heated.
Above-mentioned based in the oil product circulating purifying device of polyamide melt-blown filter, oil product is fuel oil, machine oil or hydraulic oil.
The technique effect that the present invention has is as follows:
One, the present invention proposes a kind of defecator for oil purification, by the filter type of extracorporeal circulation, oil product is carried out cleaning and processes.For fuel oil, the objectionable impurities (colloid that includes in diesel oil, asphalitine etc.) of in fuel oil more than 90% can be filtered, and there is stronger oil-water separating function；The cleaning of diesel oil can be ensured to greatest extent, thus reaching protection electromotor, minimizing abrasion, increasing service life of engine, raising fuel utilization ratio, reducing oil consumption, improve exhaust emissions；For non-fuel oil, can in not shutdown situation circulating filtration, promote the cleannes of non-fuel oil, extend the service life of oil product, reduce equipment fault.
Two it is known that polyamide is a kind of hydrophilic material, and according to the thinking in aforementioned background art, water wetted material is not suitable for filter material, and main cause is non-hydrophobic material, it is difficult to realize the oil-water separation in oil product.The present invention proposes and a kind of utilizes meltblown polyamide material to make the scheme of filter material, filter element and filter, by controlling the structural parameters of filter material, achieve fuel oil or the filtration of lubrication wet goods oil product, under guaranteeing the premise that material has the resistance to alcohol corrosion of oil resistant, there is higher filtering accuracy, water environment capacity and oil and water separation capability, the program breaches tradition filter material can only select the restriction of hydrophobic material to meet oil-water separation index, the feature such as corrosion-resistant, highly reliable making full use of that polyamide material has in oil product, meets the filtering requirement of common oil product.
Three, the present invention in melt-blown process by controlling the parameters such as the temperature of filametntary output aperture, melt-blown pressure, the temperature of extruder, the temperature of manifold and meltblown beam, melt-blown fibre diameter parameter is made to reach designing requirement, simultaneously by changing reception speed and the receiving angle receiving unit in melt blown process, control the aperture of the mean porosities on filter material and filter opening, filter opening is successively decreased gradually from outer layer to internal layer, is finally reached designing requirement.
Four, the present invention is by the master batch additive that is mixed in cutting into slices at polyamide, substantially increases filametntary toughness and intensity, overcomes meltblown fibers silk fracture of wire, thickness is uneven, production efficiency is low problem.
Five, the filter element of optimal way of the present invention has polyamide filter material and filter paper double medium filtration function, and wherein polyamide filter material realizes filtering and emulsified water breakdown of emulsion, and filter paper is used for further fine straining and oil-water separation, and the two combination can improve filtering accuracy further.
Six, the check valve that the present invention is arranged in pipeline, is used for preventing oil product from refluxing；The overflow valve simultaneously arranged in pipeline, in pipeline, pressure opens relief function time excessive, it is ensured that the safety of purifier.
Accompanying drawing explanation
Fig. 1 is the principle schematic of energy oil purifier of the present invention；
Fig. 2 is the structural representation of melt-blown filter of the present invention；
Fig. 3 is the composite filter element structural representation that the present invention comprises filter paper and polyamide filter paper；
Fig. 4 is the profile in F-F direction in Fig. 3；
Fig. 5 is the structural representation of device for melt blowing of the present invention；
Fig. 6 is meltblown beam operation principle schematic diagram of the present invention；
Accompanying drawing labelling is as follows: 1 is cleaner；2 is overflow valve；3 is hydraulic pump；4 is Fuel Tanking Unit；5 is pipeline；6 is check valve；11 is automatic drain valve；12 is heating unit；71 is air compressor；72 is extruder；73 is filter element；74 is manifold；75 is meltblown beam；76 for receiving unit；77 is cutter unit；81 is air chamber；82 is die head mainboard；83 is hot plate；84 is gas circuit；85 is material road；91 is upper end cover；92 is bottom end cover；93 is melt-blown filter material；94 is oil-out；95 is melt-blown filter material internal layer；96 is melt-blown filter material outer layer；97 is skeleton；99 is folded filter paper.
Detailed description of the invention
As shown in Figure 1, the present invention includes the Fuel Tanking Unit 4, hydraulic pump 3, cleaner 1, check valve 6 and the overflow valve 2 that are coupled by pipeline based on the oil product circulating purifying device of polyamide melt-blown filter, and described hydraulic pump 3 will need the oil product suction filter 1 from Fuel Tanking Unit 4 filtered to be back in Fuel Tanking Unit 4 after filtering by pipeline 5 again；Check valve 6 is used for preventing oil product from refluxing, and opens relief function when overflow valve 2 pressure in pipeline is excessive；When cleaner 1 impurity too much causes blocking or other reason to cause that in pipeline, pressure reduction is excessive, overflow valve 2 is opened, and reduces channel interior pressure, it is to avoid system is caused damage by high pressure.
Cleaner 1 to use different filter elements according to the oil product of different viscosities scope, filter element should meet the filtering rate in range of viscosities simultaneously, i.e. system entirety oil circuit flow, thus ensureing filter efficiency, filters within finally making the granularity grade of oil product be maintained at NAS8 level repeatedly.
Hydraulic pump 3 is by motor-driven, and motor selection should be taken into account explosive-proof grade, watt level, is suitable for the range of viscosities of oil product, so as to match with the parameter of electric machine.Oil pump should meet the lubricating oil being suitable for bigger range of viscosities, has over-voltage protecting function and relief function simultaneously.
In order to adapt to low temperature environment work, the apparatus for purifying oil products of the present invention comprises heating unit 12, parts in Fuel Tanking Unit 4, pipeline 5, cleaner 1 or multiple parts can be heated, quickly oil temperature can be added to the temperature specified, it is ensured that purifier is without region of bypassed oil.When cold environment uses, can prevent its low temperature from solidifying, improve the mobility filtering oil product.
As shown in Figure 2, filter element in cleaner of the present invention includes filter material 93, upper end cover 91 and bottom end cover 92, upper end cover 91 and bottom end cover 92 are connected in the two ends of polyamide filter material 93, and skeleton 97 is then arranged on inside filter material for pressure-bearing, 95 and the 95 respectively internal layer of filter material and outer layers in figure；Upper end cover 91 has oil outlet 94, and bottom end cover 92 is then sealed in the bottom of filter material 93.Wherein the thickness of filter material i.e. wall thickness are 0.5-30mm, and height is determined according to different filter element yardsticks.Being dispersed with the filter opening successively decreased from the outer to the inner gradually in aperture on filter material, wherein the average pore size of cylinder portion outer layer is 10-100 μm, and the average pore size of cylinder portion internal layer is 1-50 μm, and the average diameter of meltblown fibers silk is 0.1-80 μm, and the porosity of filter material is more than 80%.As a kind of optimal way, upper end cover 91, bottom end cover 92 all adopt polyamide material, are integrated by hot plate welding technique welding with polyamide filter material, owing to the average void fraction of filter material is relatively big, therefore to control welding temperature and time in welding.
As shown in Figure 3 and Figure 4, as a kind of optimal way, outside the skeleton of filter element, tubular filter material be internally provided with the tubular folded filter paper 99 coaxial with filter material；Filter paper forms for high accuracy composite filter paper is folding, and the average pore size of filter paper is 1-100 μm, thickness 0.3-1.5mm.Wherein polyamide filter material realizes filtering and emulsified water breakdown of emulsion, and folded filter paper 99 adopts existing conventional filter paper to make, and for further fine straining and oil-water separation, the two combination can improve filtering accuracy and oil-water separation rate further.
The present invention is by controlling the structural parameters of filter material, it is achieved that the filtration of fuel oil or lubrication wet goods oil product, has higher filtering accuracy, water environment capacity and oil and water separation capability.As a kind of optimal way, filter material thickness is 5-20mm, and the average pore size of cylinder portion outer layer is 20-40 μm, the average pore size of cylinder portion internal layer is 10-20 μm, and the average diameter of meltblown fibers silk is 5-50 μm, and the porosity of filter material is more than 90%, these parameters can further improve filtration index, optimizes performance.
Work principle of filter of the present invention is as follows: when oil product is exported by oil outlet through filter material by the outside of filter element again, Colophonium in oil product, dust and mechanical admixture are blocked and are adsorbed on filter material, and by higher mean porosities parameter, improve the carrying capacity to impurity；The setting of the filter opening successively decreased gradually to internal layer by outer layer in addition, by the trash flow of the big particle diameter outer layer at filter material, the impurity absorption of little particle diameter is in the inside of filter material.Its mechanism with high oil water separation function is described below:
Polyamide melt-blown filter materials is originally as hydrophilic oleophobic material, and its material itself has the hydrophilic of excellence, and the cellosilk of melt-blown formation is very thin, has been internally formed numerous capillary holes in the process being wound hollow tube-shape filter material.Result of study shows, in oil product, overwhelming majority water is to exist with the little water droplet of free state, and no matter the filter material of the present invention is the aperture in the capillary hole of filament diameter or the formation diameter that is respectively less than most little water droplet, microstructure is seen, the surface tension of oil product drop is much smaller than water droplet, so utilize surface tension that fine liquid particles is bigger and during by capillary hole with the mutual affine cohesion of water wetted material, it is aggregated into free water after making the emulsified water breakdown of emulsion in fuel oil, free water collides convergence mutually for larger-diameter water droplet, sedimentation collects in cleaner bottom secction under gravity, finally discharged by blowoff valve.
Fig. 5 gives the manufacture device of polyamide filter material of the present invention, including air compressor 71, extruder 72, filter element 73, manifold 74, meltblown beam 75, receive unit 76 and cutter unit 77, air compressor 71 provides high-pressure air source for extruder 72, after filter element 73 is by contaminant filter, manifold 74 is entered after heating raw materials that extruder 72 adds is melted, manifold 74 side is provided with meltblown beam 75, fused raw material is extruded through the aperture of meltblown beam 75, and under high-temperature high-speed airflow effect melt-blown go out superfine fibre silk to receive unit 76, receive unit and cellosilk is rolled into tubular, receive unit 76 and be connected to cutter unit 77, realize the ends cutting of filter material.Receiving and be provided with rotating shaft on unit 76, meltblown fibers is repeatedly wound around on the rotary shaft and is formed long tubular element by traction continuously.Obtaining different fibre density, wall thickness and the differentiated aperture value of ectonexine by adjusting the parameter receiving unit, then cut unit 77 cuts off the melt-blown filter forming suitable dimension.
The effect of extruder 72 is the extruding of solid high polymer, aerofluxus, melted, mixing homogenizing, quantitatively exports high polymer melt under stationary temperature and pressure.Filter element 73 is used to the device that molten polymer is filtered, and has a circular groove, for placement of multiple layers drainage screen, it is achieved the contaminant filter in material inside it.The effect of manifold 74 is the melted chain rupture promoting polymer, and the flow path that material is in manifold is equal, absorbs heat energy equal, and finally measured pump continuous and quantitative extrusion is got to know.
Meltblown beam is illustrated as shown in Figure 6, supply and feed two parts it are divided into inside it, that expects road 85 both above and below has gas circuit 84, and between gas circuit and material road, have the angle of 60 °, die head mainboard 82 is internally provided with air chamber 81, it is provided with hot plate 83 between material road 85 and gas circuit 84, when two strands of airflow collisions form turbulent flow, promotes the molten polymer of material road 85 extrusion quickly to form fiber.Nylon meltblown fibers is received unit and receives the formation melt-blown filter material of tubular nylon, adjusts the reception speed receiving unit and makes the melt-blown tubular filter material of nylon depart from it；Cutter unit includes the buncher and the cutting knife that automatically control, and filter material is cut by the length according to setting.
The present invention preferably has the equipment of both-end meltblown beam, say, that two sides of manifold 74 are provided with meltblown beam 75 and the reception unit 76 matched and cutter unit 77, and two meltblown beam automatically control respectively, substantially increase production efficiency.
The manufacturing step of the polyamide filter material of the present invention is as follows:
[1] polyamide section being added extruder hopper, hopper heater is set as 40-50 DEG C, the baking material time is 4 hours；
[2] condition of spinning manifold temperature rises to 240-300 DEG C, and fast replacing device is warming up to 240 ± 10 DEG C, and extruder is warming up to 300 ± 10 DEG C.Polyamide raw materials is heated in an extruder after melting and is delivered to filter element, is assigned to manifold after described filter element filters out impurities；
[3] meltblown beam is forced into 0.05-0.07MPa, and temperature rises to 240-300 DEG C, and fused raw material is extruded through the aperture of meltblown beam, becomes melt-blown micro fibre in the strong drawing-off of high-temperature high-speed airflow, and wherein the pressure of extruder is 2MPa；
[4] meltblown fibers is received unit and is rolled into cylindric melt-blown filter material, and by changing the reception speed and receiving angle receiving unit, ensures the porosity parameter of filter material, and successively decrease from the outer to the inner gradually in the aperture realizing filter opening；
[5] filter material is cut into the tubular filter material of appropriate length by cutter unit.
Wherein when extruder pressure adjust 2MPa, fused raw material can be extruded into 0.1-80 μm thread.Receive device and move horizontally the reception long tubular element of formation, and size cuts off molding as requested.
As required, step [1] is additionally included in polyamide section the master batch being mixed into, described master batch includes one or more in filler, coupling agent or dispersant, wherein filler includes calcium carbonate, Pulvis Talci etc., coupling agent such as carbonic ester silane etc., dispersant such as Tissuemat E, stearic acid salt etc..Wherein the particle diameter of master batch is 1-3m, and polyamide section and the ratio adding master batch are 1:0.03.
According to the filter element universal test method in cleaner industry, the parameter of filter element having been detected, concrete detection method and condition are as follows:
(1) pollutant holding capability:
It is measured by the amount being trapped after cleaner under certain time, flow with certain standard pollutant, refers to the assay method particle counting of international standard ISO19438:2003 automobile engine diesel fuel filter and gasoline filter filtering efficiency and impurity storage capacity.
(2) original circulating resistance
Measuring cleaner when nominal volume flow, test oil is by the differential static pressure of cleaner.Refer to machinery industry standard JBT5239.4-2011 diesel filter for diesel engine the 4th part: test method 6.4 original resistance is tested；Or see automobile industry standard QCT772-2006 automobile diesel fuel filter test method；Or see the fuel filter part 1 of ISO4020-2001 road vehicle Diesel engine: test method.
(3) oil-water separation rate
Measure the percentage ratio that moisture standard oil is reduced by the water concentration before and after cleaner, refer to the appraisal procedure of international standard ISOTS163322006 diesel engine fuel oil cleaner oil-water separation usefulness or according to SAEJ1839 (97) coarse microdroplet water/fuel separation test code.
(4) filtering accuracy
According to the standard solid composition granule size intercepted by cleaner under nominal volume flow and quantitative measurement cleaner filtering accuracy and filter efficiency, refer to the assay method particle counting of international standard ISO19438:2003 automobile engine diesel fuel filter and gasoline filter filtering efficiency and impurity storage capacity or the diesel fuel filter of the domestic combustion engine of ISO/TR13353-2003, by original effect of calculating particles, vitality capacity and gravity effect.
(5) aperture and porosity
Non-infiltration liquid is only allowed for access porous body when applying external force, when continuous supercharging, and when entering hydrargyrum volume as external pressure function, can obtain entering the hydrargyrum volume evacuated in sample under external force, thus recording the pore-size distribution of sample.Mensuration mode can adopt continuous supercharging mode, it is possible to adopts step-by-step pressurization mode, after namely certain interval of time reaches balance, then measures into hydrargyrum volume.Refer to GBT21650.1-2011/ISO15901:2005 mercury injection method and gas determination of adsorption method solid material pore-size distribution and porosity part 1: mercury injection method.
The specific embodiment of several group filter elements is given below:
Embodiment 1: material is PA6；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 10mm, the average pore size of filter core cylinder volume surrounding is 10 μm, the average pore size of filter element barrel inner is 1 μm, and the average diameter of meltblown fibers silk is 0.1 μm, porosity 80.2%；Filtering oil product type is gasoline；It is applied to the filter effect of gasoline filter: the filter efficiency to 5-10 μm of granule is 99.09%；Water environment capacity is 60.11g, and during nominal volume flow 10L/min, original circulating resistance 10kpa, oil-water separation rate is 98.99%.
Embodiment 2: material is PA6；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 10mm, the average pore size of filter core cylinder volume surrounding is 100 μm, the average pore size of filter element barrel inner is 50 μm, and the average diameter of meltblown fibers silk is 80 μm, porosity 91.2%；Filtering oil product type is lubricating oil；It is applied to the filter effect of oil filter: the filter efficiency to 5-10 μm of granule is 92.01%；Water environment capacity is 122.01g, and during nominal volume flow 10L/min, original circulating resistance 12.01kpa, oil-water separation rate is 91.88%.
Embodiment 3: material is PA6；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 10mm, the average pore size of filter core cylinder volume surrounding is 100 μm, the average pore size of filter element barrel inner is 30 μm, and the average diameter of meltblown fibers silk is 25 μm, porosity 90.2%；Filtering oil product type is lubricating oil；It is applied to the filter effect of oil filter: the filter efficiency to 5-10 μm of granule is 92.05%；Water environment capacity is 101.88g, and during nominal volume flow 10L/min, original circulating resistance 12.35kpa, oil-water separation rate is 90.53%.
Embodiment 4: material is PA6；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 5mm, and the average pore size of filter core cylinder volume surrounding is 20 μm, and the average pore size of filter element barrel inner is 1 μm, and the average diameter of meltblown fibers silk is 50 μm, porosity 81.1%；Filtering oil product type is gasoline；It is applied to the filter effect of gasoline filter: the filter efficiency to 5-10 μm of granule is 98.75%；Water environment capacity is 84.74g, and during nominal volume flow 10L/min, original circulating resistance 8.01kpa, oil-water separation rate is 95.13%.
Embodiment 5: material is PA66；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 20mm, and the average pore size of filter core cylinder volume surrounding is 100 μm, and the average pore size of filter element barrel inner is 1 μm, and the average diameter of meltblown fibers silk is 80 μm, porosity 86%；Filtering oil product type is gasoline；It is applied to the filter effect of gasoline filter: the filter efficiency to 5-10 μm of granule is 95.94%；Water environment capacity is 78.63g, and during nominal volume flow 10L/min, original circulating resistance 9.19kpa, oil-water separation rate is 92.14%.
Embodiment 6: material is PA6；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 10mm, the average pore size of filter core cylinder volume surrounding is 40 μm, the average pore size of filter element barrel inner is 10 μm, and the average diameter of meltblown fibers silk is 10 μm, porosity 84.1%；Nested folded filter paper in filter core cylinder body, the average pore size of filter paper is 10 μm；Filtering oil product type is diesel oil；It is applied to the filter effect of diesel fuel filter: the filter efficiency to 5-10 μm of granule is 96.15%；Water environment capacity is 109.56g, and during nominal volume flow 10L/min, original circulating resistance 8.27kpa, oil-water separation rate is 96.02%.
Embodiment 7: material is PA66；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 10mm, the average pore size of filter core cylinder volume surrounding is 100 μm, the average pore size of filter element barrel inner is 20 μm, and the average diameter of meltblown fibers silk is 15 μm, porosity 90.6%；Nested folded filter paper in filter core cylinder body, the average pore size of filter paper is 20 μm；Filtering oil product type is diesel oil；It is applied to the filter effect of diesel fuel filter: the filter efficiency to 5-10 μm of granule is 93.24%；Water environment capacity is 112.99g, and during nominal volume flow 10L/min, original circulating resistance 7.35kpa, oil-water separation rate is 96.36%.
Embodiment 8: material is PA66；Filter material barrel lenght is 200mm, and filter material cylinder external diameter is 100mm, and the thickness of filter material cylinder is 10mm, and the average pore size of filter core cylinder volume surrounding is 50 μm, and the average pore size of filter element barrel inner is 20 μm, and the average diameter of meltblown fibers silk is 5 μm, porosity 83.6%；Nested folded filter paper in filter core cylinder body, the average pore size of filter paper is 10 μm；Filtering oil product type is diesel oil；It is applied to the filter effect of diesel fuel filter: the filter efficiency to 5-10 μm of granule is 96.92%；Water environment capacity is 88.60g, and during nominal volume flow 10L/min, original circulating resistance 8.66kpa, oil-water separation rate is 97.98%.
The present invention adopts polyamide as oil product filter material, is installed in circulating purification outside device.By controlling the structural parameters of filter material, achieve the filtration of fuel oil, lubrication wet goods oil product, under guaranteeing the premise that material has the resistance to alcohol corrosion of oil resistant, there is higher filtering accuracy, water environment capacity and oil and water separation capability, the feature such as corrosion-resistant, highly reliable making full use of that polyamide material has in oil product, meets the filtering requirement of common oil product.
Above content is in conjunction with concrete preferred implementation further description made for the present invention; it cannot be assumed that the specific embodiment of the present invention is only limitted to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the present invention and be determined scope of patent protection by submitted claims.
Claims (10)
1. based on the oil product circulating purifying device of polyamide melt-blown filter, it is characterized in that: include the Fuel Tanking Unit, hydraulic pump and the cleaner that are coupled by pipeline, described hydraulic pump will need the oil product filtered suction filter from Fuel Tanking Unit to be back in Fuel Tanking Unit after filtering by pipeline again；
Described cleaner adopts polyamide melt-blown filter to carry out oil product filtration, described polyamide melt-blown filter includes upper end cover, bottom end cover and polyamide filter material, upper end cover and bottom end cover are fixed on the two ends of polyamide filter material, upper end cover and bottom end cover have at least an end cap to be provided with oil outlet, described polyamide filter material be adopt polyamide material to be processed by melt-blown process, melt-blown go out superfine fibre silk through mutually bonding and be wound around the hollow cylindrical structure made；Described filter material is the open structure comprising some different pore size filter openings；The size distribution mode of described filter opening is for successively decrease gradually successively along tubular structure outer layer to internal layer pore size.
2. the oil product circulating purifying device based on polyamide melt-blown filter according to claim 1, it is characterized in that: described polyamide filter material thickness is 0.5-30mm, wherein the average pore size of cylinder portion outer layer filter opening is 10-100 μm, the average pore size of cylinder portion internal layer filter opening is 1-50 μm, the average diameter of meltblown fibers silk is 0.1-80 μm, and the porosity of filter material is more than 80%.
3. the oil product circulating purifying device based on polyamide melt-blown filter according to claim 2, it is characterized in that: described polyamide filter material thickness is 5-20mm, the average pore size of cylinder portion outer layer is 20-40 μm, the average pore size of cylinder portion internal layer is 10-20 μm, the average diameter range of meltblown fibers silk is 5-50 μm, and the porosity of filter material is more than 90%.
4. according to one of any described oil product circulating purifying device based on polyamide melt-blown filter of claim 1-3, it is characterised in that: polyamide is PA6 and PA66.
5. according to one of any described oil product circulating purifying device based on polyamide melt-blown filter of claim 1-3, it is characterized in that: described filter element also includes the folded filter paper of tubular structure, described folded filter paper and polyamide filter material are coaxially disposed, and are fixed on the inside of polyamide filter material by skeleton.
6. the oil product circulating purifying device based on polyamide melt-blown filter according to claim 5, it is characterised in that: described filter paper is high-precision composite filter paper；The average pore size of filter paper body is 1-100 μm, thickness 0.3-1.5mm.
7. according to one of any described oil product circulating purifying device based on polyamide melt-blown filter of claim 1-3, it is characterised in that: the check valve being also included in pipeline to arrange, it is used for preventing oil product from refluxing.
8. according to one of any described oil product circulating purifying device based on polyamide melt-blown filter of claim 1-3, it is characterised in that: the overflow valve being also included in pipeline to arrange, in pipeline, pressure opens relief function time excessive.
9. according to one of any described oil product circulating purifying device based on polyamide melt-blown filter of claim 1-3, it is characterised in that: described oil purifier comprises heating unit, can Fuel Tanking Unit, pipeline or cleaner be heated.
10. according to one of any described oil product circulating purifying device based on polyamide melt-blown filter of claim 1-3, it is characterised in that: described oil product is fuel oil, machine oil or hydraulic oil.
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