WO2016185511A1 - 高温用フィルタ - Google Patents
高温用フィルタ Download PDFInfo
- Publication number
- WO2016185511A1 WO2016185511A1 PCT/JP2015/064010 JP2015064010W WO2016185511A1 WO 2016185511 A1 WO2016185511 A1 WO 2016185511A1 JP 2015064010 W JP2015064010 W JP 2015064010W WO 2016185511 A1 WO2016185511 A1 WO 2016185511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- filter medium
- separator
- frame
- stainless steel
- Prior art date
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 32
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 31
- 239000010935 stainless steel Substances 0.000 claims abstract description 30
- 239000003365 glass fiber Substances 0.000 claims abstract description 21
- 125000006850 spacer group Chemical group 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007598 dipping method Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 30
- 238000001914 filtration Methods 0.000 abstract description 8
- 239000002245 particle Substances 0.000 description 26
- 239000000919 ceramic Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0097—Special means for preventing bypass around the filter, i.e. in addition to usual seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4218—Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/522—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with specific folds, e.g. having different lengths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2271/02—Gaskets, sealings
- B01D2271/025—Making of sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/20—High temperature filtration
-
- 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
- B01D29/01—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 flat filtering elements
- B01D29/05—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 flat filtering elements supported
- B01D29/07—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 flat filtering elements supported with corrugated, folded or wound filtering sheets
Definitions
- the present invention relates to a filter suitable for filtering hot air.
- HEPA High Efficiency P Articulate Air filters for creating dust-free and aseptic environments under high temperatures are generally made by folding paper-like filter media with fine glass fibers into irregularities, and the gaps between the folds.
- the separator is formed by inserting a stainless steel foil or an aluminum foil into a corrugated shape.
- the filter medium and the separator are generally accommodated in a stainless steel frame.
- an end seal is used in which the filter medium is solidified by immersing it in a sealant at the top and bottom of the frame.
- the end seal is damaged due to the difference in thermal expansion between the end seal and the stainless steel frame, causing a problem that air to be filtered leaks.
- it has been proposed to fix the filter medium to a flat plate with an end seal and to dispose a buffer material between the flat plate and the frame see JP 2012-91071 A).
- an object of the present invention is to provide a high-temperature filter that has a sealing property that maintains filter performance even when used at high temperatures and that has a low dust generation even at high temperatures.
- a high-temperature filter 1 is a filter medium formed from glass fiber, and is a filter that is bent into an uneven shape.
- the high temperature filter according to the second aspect of the present invention is, for example, as shown in FIG. 1, in the high temperature filter 1 according to the first aspect, the separator 4 is made of the same material as the glass fiber forming the filter medium 2. It is formed. If comprised in this way, both will not be rubbed by the thermal expansion difference of a filter medium and a separator, and the amount of dust generation can be reduced.
- the high-temperature filter according to the third aspect of the present invention is, for example, as shown in FIG. 3, a filter medium formed from glass fiber, and the filter medium 2 bent into an uneven shape; and the surface of the filter medium 2 A spacer 14 formed using the same material as the glass fiber that forms the filter medium 2; a stainless steel frame 6 that houses the filter medium 2 and the spacer 14; And an end seal 8 formed of a ceramic material which is solidified by dipping the end portion and has a linear expansion coefficient adjusted to be the same as that of stainless steel. If comprised in this way, the sealing performance which maintains filter performance will be maintained, without producing a crack and damage to the ceramic of an end seal. Moreover, since the spacer is formed using the same material as the glass fiber forming the filter medium 2, the filter medium and the spacer are not rubbed due to the difference in thermal expansion, and the amount of dust generation can be reduced.
- the high temperature filter according to the fourth aspect of the present invention is the high temperature filter 1 according to any one of the first to third aspects, wherein the end seal 8 exceeds 3 mm and is 5 mm or less. Is the thickness. If comprised in this way, since an end seal
- the high temperature filter according to the fifth aspect of the present invention is, for example, as shown in FIG. 1, in the high temperature filter 1 according to any one of the first to fourth aspects, the filter medium 2 is a test of MIL standard Q101.
- the water repellency of 3000 Pa to 8000 Pa. If comprised in this way, since a filter medium has moderate water repellency, it will be easy to solidify a ceramic material by immersing a filter medium in the ceramic material for end seals.
- the end seal since the end seal has the same linear expansion coefficient as the stainless steel constituting the frame, there is no difference in thermal expansion between the ceramic and the stainless steel frame, and the end seal ceramic It is possible to provide a high-temperature filter that does not cause cracks or breakage and that maintains the sealing performance to maintain the filter performance. Furthermore, since the separator or spacer can be made of the same material as the glass fiber that forms the filter medium, it is possible to eliminate rubbing due to the difference in thermal expansion between the filter medium and the separator or spacer, reducing the amount of dust generated. can do.
- FIG. 1 is a perspective view showing a separator type high-temperature filter according to an embodiment of the present invention with a part thereof omitted.
- 2A and 2B are diagrams for explaining that the end of the filter medium is fixed to the frame by an end seal, wherein FIG. 2A is an X sectional view in FIG. 1, and FIG. 2B is a Z sectional view in FIG. The separator is omitted.
- FIG. 3 is a perspective view showing a mini-pleat type high-temperature filter according to an embodiment of the present invention with a part thereof omitted.
- FIG. 4 is a graph showing the relationship between the change in temperature and the amount of dust generated for the examples.
- FIG. 5 is a graph showing the relationship between the change in temperature and the amount of dust generation for a comparative example using an aluminum separator, and shows the amount of dust generation of particles having a particle diameter of 0.3 ⁇ m or more.
- FIG. 6 is a graph showing a relationship between a change in temperature and a dust generation amount for a comparative example using a stainless steel separator, and (a) shows a dust generation amount of particles having a particle diameter of 0.5 ⁇ m or more.
- (B) shows the dust generation amount of particles having a particle diameter of 0.3 ⁇ m or more.
- FIG. 1 is a perspective view showing a part of a high temperature filter 1 according to an embodiment of the present invention.
- the high-temperature filter 1 is a so-called separator type filter in which a filter medium 2 formed of glass fiber is bent into an irregular shape, and a separator 4 is inserted into a gap between the filter medium 2 folded into an irregular shape.
- a filter medium 2 is typically formed from heat-resistant fine glass fibers.
- arrows indicate the flow of air to be filtered.
- the filter medium 2 it can be manufactured as an ULPA (Ultra Low Low Penetration Air) filter or a medium performance filter.
- ULPA Ultra Low Low Penetration Air
- the separator 4 is formed into a plate shape that is bent into a corrugated shape using the same glass fiber material that forms the filter medium 2.
- the folded corrugated separator 4 is inserted into the gap of the filter medium 2 that is bent into the concavo-convex shape to maintain the shape of the filter medium 2 that is bent into the concavo-convex shape.
- the filter medium 2 and the separator 4 are accommodated in a stainless steel frame 6.
- the frame 6 surrounds the periphery of the filter medium 2 and the separator 4 except for a surface (surface in the Z direction) through which air to be filtered flows.
- the frame 6 is provided with side seals (not shown) that cover the left and right (X direction) ends of the surface through which the air to be filtered flows to prevent air leakage on both sides.
- FIGS. 2A and 2B are diagrams for explaining that the end of the filter medium 2 in the vertical direction is fixed to the frame 6 by the end seal 8.
- FIG. 2A is an X sectional view in FIG. 1, and FIG. FIG.
- illustration of the separator 4 is abbreviate
- the filter medium 2 has a length until it contacts the frame 6, but the end of the filter medium 2 may not be long until it contacts the frame 6.
- the end seal 8 is formed by applying a ceramic material adjusted so that its linear expansion coefficient is the same as the linear expansion coefficient of the stainless steel constituting the frame 6 to the inside of the upper and lower surfaces of the frame 6.
- the same linear expansion coefficient as that of stainless steel is such that the end seal 8 is not damaged by the difference in thermal expansion between the frame 6 and the end seal 8 at the operating temperature of the high-temperature filter 1.
- the approximate linear expansion coefficient is indicated, and may be within ⁇ 10% of the linear expansion coefficient of stainless steel, preferably within ⁇ 5%, and more preferably within ⁇ 3%. Adjustment of the linear expansion coefficient of the end seal 8 can be performed by mixing commercially available ceramic materials.
- an alumina (linear expansion coefficient 8 ⁇ 10 ⁇ 6 / ° C.) suspension and a silica (linear expansion coefficient 13 ⁇ 10 ⁇ 6 / ° C.) suspension are mixed.
- Other ceramic materials may be mixed.
- the frame 6 is made of a ferritic stainless steel such as JIS SUS430 steel, the linear expansion coefficient of the stainless steel is 10.4 ⁇ 10 ⁇ 6 / ° C., so that the linear expansion coefficient of the end seal 8 is 11. 4 ⁇ to 10 -6 /°C ⁇ 9.4 ⁇ 10 -6 / °C.
- the end seal 8 is preferably formed to a thickness of 1 mm or more and 7 mm or less. If the thickness is less than 1 mm, the end of the filter medium 2 cannot be fixed, and air may leak and flow without being filtered by the filter medium 2.
- the thickness is preferably 2 mm or more, more preferably more than 3 mm. When the thickness exceeds 3 mm, the filter medium 2 can be fixed with good reliability.
- the thickness of the end seal 8 is preferably 7 mm or less. More preferably, it is 6 mm or less, More preferably, it is 5 mm or less. If it is 5 mm or less, the ceramic material is appropriately dried.
- the separator 4 is inserted into the gap between the filter media 2 that is bent into an uneven shape.
- a ceramic material with an adjusted linear expansion coefficient is applied to the inside of one of the upper and lower surfaces of the frame 6. And the edge part of the up-down direction of the filter medium 2 which inserted the separator 4 is immersed in ceramic material.
- a ceramic material with an adjusted linear expansion coefficient is applied to the inside of the other surfaces of the upper and lower surfaces of the frame 6, and the filter medium 2 in which the separator 4 is inserted in the vertical direction.
- the ceramic material is dried and solidified, and heated to 90 ° C.
- the end seal 8 By forming the end seal 8 in this way, the filter medium 2 is fixed to the frame 6.
- the separator 4 may be inserted into the gap of the filter medium 2 after the filter medium 2 is fixed to the frame 6 via the end seal 8 without inserting the separator 4 into the gap of the filter medium 2 in advance.
- the end seal 8 may be formed by applying a ceramic material after the filter medium 2 and the separator 4 are arranged at predetermined positions in the frame 6. As described above, when the ceramic material is applied around the end of the filter medium 2, the filter medium 2 is immersed in the ceramic material applied to the frame 6.
- the water repellency of the filter medium 2 is 10000 Pa or less in the test of MIL standard Q101 (US military Quality Assurance Director, “Instruction, Manual, for the installation, Operation, and Maintenance, of Indicator, Water-Repellency, Q101). Preferably there is.
- the filter medium 2 is 8,000 Pa or less, and if it is 8,000 Pa or less, the filter medium 2 is familiar with the ceramic material, and no gap is formed between the filter medium 2 and the end seal 8. On the other hand, if the water repellency is too low, the filter medium 2 absorbs too much moisture in the ceramic material, resulting in non-uniform moisture in the ceramic material, resulting in an uneven end seal 8. Therefore, in the test of MIL standard Q101, it is preferable that it is 3,000 Pa or more.
- the high temperature filter 1 As shown in FIG. 1, hot air to be filtered flows through the high-temperature filter 1.
- the air can be used up to a high temperature of 500 ° C.
- the end seal 8 is made of ceramics, it can be used at a high temperature. Further, since the linear expansion coefficients of the frame 6 and the end seal 8 are the same, the ceramic of the end seal 8 is not cracked or damaged due to the difference in thermal expansion, and the sealing performance for maintaining the filter performance is maintained. . Note that the difference in thermal expansion between the filter medium 2 and the frame 6 is absorbed by the expansion and contraction of the filter medium 2 formed from glass fibers.
- the frame 6 is preferably made of a ferritic stainless steel having a small linear expansion coefficient even with stainless steel.
- the filter medium 2 and the separator 4 are formed of the same glass fiber, there is no difference in thermal expansion even when exposed to high temperatures, and they do not rub and generate dust.
- the mini-pleat type high temperature filter 10 is different from the separator-type high-temperature filter 1 in that the spacer 14 is disposed on the surface of the filter medium 2 without the separator 4, but the other may be the same. .
- the separator-type high-temperature filter 1 the separator 4 is inserted into the gap between the filter media 2 that is bent into a concavo-convex shape, so that the filter media 2 do not come into contact with each other and a space through which air flows is formed.
- the spacers 14 are arranged on the surface of the filter medium 2 and bent into a concavo-convex shape so that the filter medium 2 is not in contact with each other and forms a space through which air flows.
- a spacer 14 made of the same material as the glass fiber forming the filter medium 2 is disposed on the surface of the filter medium 2.
- a plate formed of glass fibers used for the filter medium 2 is cut into a strip shape having a width of about 3 mm and disposed on the surface of the filter medium 2.
- the thickness of the spacer 14 varies depending on the application, but is generally about 0.5 to 1.5 mm, and preferably 0.5 to 0.8 mm.
- the spacers 14 are generally arranged in several rows in the vertical direction when the filter medium 2 is assembled as the high-temperature filter 10 (the vertical direction in FIG. 3), but is not limited thereto. Then, the filter medium 2 is bent together with the spacers 14 into an uneven shape.
- corrugation is narrow compared with the uneven
- the spacer 14 is formed of the same glass fiber material as that of the filter medium 2, there is no difference in thermal expansion even when exposed to a high temperature, and the two do not rub and generate dust.
- the temperature of air flowing through the high-temperature filter as an example was changed, and particles generated at that time were measured. Further, as a comparative example, the same measurement was performed using a conventionally used high temperature filter using aluminum and stainless steel separators.
- the air to be filtered was previously dust-removed with ULPA and then blown with a fan at a normal temperature (20 ° C.) at a flow rate of 0.7 m 3 / min.
- the air was heated with a heater, and the heated air was filtered with a high temperature filter.
- the temperature of air was raised from room temperature to 400 ° C. and returned to room temperature.
- the temperature was raised from room temperature to 350 ° C. and returned to room temperature.
- the volume flow rate at 350 ° C. is 1.49 m 3 / min.
- the number of particles contained in the air before being filtered by the high temperature filter and the number of particles contained in the air after being filtered by the high temperature filter were measured with a particle counter (SOLAIR3100 + manufactured by Lighthouse). Dust generation with a high temperature filter was measured.
- the high-temperature filter of the present invention is a mini-pleat type HEPA filter having outer dimensions of 203 mm in the lateral direction (X direction), 203 mm in height (Y direction), and 100 mm in depth (Z direction).
- the spacer was 0.7 mm thick and 3 mm wide.
- the high-temperature filter used as a comparative example is a separator type HEPA filter, and an aluminum separator having outer dimensions of 203 mm in width (X direction), 203 mm in height (Y direction), and 150 mm in depth (Z direction) was used. It is a filter using a filter and a stainless steel separator whose outer dimensions are horizontal (X direction) 610 mm, height (Y direction) 610 mm, and depth (Z direction) 150 mm.
- FIG. 5 The relationship between the change in temperature and the amount of dust is shown in FIG.
- FIG. 5 The relationship between the change in temperature and the amount of dust is shown in FIG. 5.
- FIG. 5 The relationship between the change in temperature and the amount of dust is shown in FIG. 5.
- FIG. 5 shows the result of the filter using an aluminum separator.
- FIG. 4 and 6 shows the result of the filter using a stainless steel separator.
- FIG. 4 and 6 shows the dust generation amount of particles having a particle diameter of 0.5 ⁇ m or more
- FIG. 4 and 6 shows the dust generation amount of particles having a particle diameter of 0.3 ⁇ m or more
- FIG. The dust generation amount of particles having a diameter of 0.3 ⁇ m or more is shown.
- the vertical axis represents the number of dusting particles per 28.3 liters (1 cubic foot) and the temperature (° C.)
- the horizontal axis represents the elapsed time (minutes).
- the high-temperature filter according to the present invention generates less dust even when the temperature of the air to be filtered changes compared to the conventional high-temperature filter.
- the filter using the aluminum separator shown in FIG. 5 when the temperature of the air was increased to 350 ° C., the generation of particles of 0.3 ⁇ m or more was about 40,000 per 28.3 liters at maximum. Even when the air temperature was increased and decreased twice, the maximum dust generation did not change.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
Abstract
Description
出願人は、記載された実施の形態のいずれをも公衆に献上する意図はなく、開示された改変、代替案のうち、特許請求の範囲内に文言上含まれないかもしれないものも、均等論下での発明の一部とする。
本明細書あるいは請求の範囲の記載において、名詞及び同様な指示語の使用は、特に指示されない限り、または文脈によって明瞭に否定されない限り、単数および複数の両方を含むものと解釈すべきである。本明細書中で提供されたいずれの例示または例示的な用語(例えば、「等」)の使用も、単に本発明を説明し易くするという意図であるに過ぎず、特に請求の範囲に記載しない限り本発明の範囲に制限を加えるものではない。
1、10 高温用フィルタ
2 フィルタ濾材
4 セパレータ
6 フレーム
8 エンドシール
14 スペーサ
Claims (5)
- ガラス繊維から形成されたフィルタ濾材であって、凹凸状に折り曲げられたフィルタ濾材と;
前記折り曲げられたフィルタ濾材の隙間に挿入される波形に折り曲げられたセパレータと;
前記フィルタ濾材と前記セパレータとを収容するステンレス鋼製のフレームと;
前記フレームに塗布され、前記フィルタ濾材の端部が浸漬されて固化されるセラミックス材料であって、線膨脹係数が前記ステンレス鋼と同じになるように調整されたセラミックス材料で形成されたエンドシールとを備える;
高温用フィルタ。 - 前記セパレータが、前記フィルタ濾材を形成するガラス繊維と同じ材料で形成された;
請求項1に記載の高温用フィルタ。 - ガラス繊維から形成されたフィルタ濾材であって、凹凸状に折り曲げられたフィルタ濾材と;
前記フィルタ濾材の表面に前記フィルタ濾材を形成するガラス繊維と同じ材料を用いて形成されたスペーサと;
前記フィルタ濾材と前記スペーサとを収容するステンレス鋼製のフレームと;
前記フレームに塗布され、前記フィルタ濾材の端部が浸漬されて固化されるセラミックス材料であって、線膨脹係数が前記ステンレス鋼と同じになるように調整されたセラミックス材料で形成されたエンドシールとを備える;
高温用フィルタ。 - 前記エンドシールが、3mmを超え5mm以下の厚さである;
請求項1ないし3のいずれか1項に記載の高温用フィルタ。 - 前記フィルタ濾材が、MIL規格Q101の試験において、3000Pa以上8000Pa以下のはっ水性を有する;
請求項1ないし4のいずれか1項に記載の高温用フィルタ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/571,727 US20180154299A1 (en) | 2015-05-15 | 2015-05-15 | High-temperature Filter |
KR1020177034877A KR20180016372A (ko) | 2015-05-15 | 2015-05-15 | 고온용 필터 |
EP15892512.3A EP3296008A4 (en) | 2015-05-15 | 2015-05-15 | HIGH TEMPERATURE FILTER |
PCT/JP2015/064010 WO2016185511A1 (ja) | 2015-05-15 | 2015-05-15 | 高温用フィルタ |
CN201580080043.8A CN107530613A (zh) | 2015-05-15 | 2015-05-15 | 高温用过滤器 |
JP2017518624A JPWO2016185511A1 (ja) | 2015-05-15 | 2015-05-15 | 高温用フィルタ |
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US (1) | US20180154299A1 (ja) |
EP (1) | EP3296008A4 (ja) |
JP (1) | JPWO2016185511A1 (ja) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020067486A1 (ja) | 2018-09-28 | 2020-04-02 | ダイキン工業株式会社 | エアフィルタ濾材、フィルタパック、エアフィルタユニット、およびこれらの製造方法 |
Families Citing this family (2)
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CN107930294B (zh) * | 2017-12-19 | 2023-08-15 | 中山尚诚环保科技有限公司 | 一种带阻火功能的油烟过滤装置 |
EP3750614A1 (de) * | 2019-06-13 | 2020-12-16 | Carl Freudenberg KG | Filter mit separatorblechen mit gegenfaltung |
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- 2015-05-15 EP EP15892512.3A patent/EP3296008A4/en not_active Withdrawn
- 2015-05-15 KR KR1020177034877A patent/KR20180016372A/ko not_active Application Discontinuation
- 2015-05-15 CN CN201580080043.8A patent/CN107530613A/zh active Pending
- 2015-05-15 JP JP2017518624A patent/JPWO2016185511A1/ja active Pending
- 2015-05-15 WO PCT/JP2015/064010 patent/WO2016185511A1/ja active Application Filing
- 2015-05-15 US US15/571,727 patent/US20180154299A1/en not_active Abandoned
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WO2020067486A1 (ja) | 2018-09-28 | 2020-04-02 | ダイキン工業株式会社 | エアフィルタ濾材、フィルタパック、エアフィルタユニット、およびこれらの製造方法 |
Also Published As
Publication number | Publication date |
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JPWO2016185511A1 (ja) | 2018-03-01 |
CN107530613A (zh) | 2018-01-02 |
EP3296008A1 (en) | 2018-03-21 |
EP3296008A4 (en) | 2019-02-20 |
US20180154299A1 (en) | 2018-06-07 |
KR20180016372A (ko) | 2018-02-14 |
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