CN114733282A - Foldable natural gas filter core - Google Patents
Foldable natural gas filter core Download PDFInfo
- Publication number
- CN114733282A CN114733282A CN202210432879.1A CN202210432879A CN114733282A CN 114733282 A CN114733282 A CN 114733282A CN 202210432879 A CN202210432879 A CN 202210432879A CN 114733282 A CN114733282 A CN 114733282A
- Authority
- CN
- China
- Prior art keywords
- filter layer
- filter
- axis
- natural gas
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000003345 natural gas Substances 0.000 title claims abstract description 38
- 238000001914 filtration Methods 0.000 claims abstract description 37
- 229920002678 cellulose Polymers 0.000 claims description 13
- 239000001913 cellulose Substances 0.000 claims description 13
- 239000003344 environmental pollutant Substances 0.000 claims description 8
- 231100000719 pollutant Toxicity 0.000 claims description 8
- 239000005011 phenolic resin Substances 0.000 claims description 7
- 238000013007 heat curing Methods 0.000 claims 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 70
- 230000008093 supporting effect Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000017667 Chronic Disease Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance 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
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A foldable natural gas filter element is provided with a first axis and comprises a plurality of foldable units which are distributed around the first axis and are integrally formed; the folding unit includes: a first filter layer; a second filter layer formed on the first filter layer on a side relatively close to the first axis; a third filter layer formed on the first filter layer relatively far from the first axis side; in a non-filtering state, the second filter layer and the third filter layer can maintain that one side of each folding unit relatively close to the first axis forms a first included angle with the opening facing the first axis; a second included angle with the opening facing away from the first axis is formed between two adjacent folding units; under the filtering state, the second filter layer and the third filter layer can maintain the first included angle in a first preset range and can maintain the second included angle in a second preset range. The application provides a pair of foldable natural gas filter core has self structural strength height, and non-deformable prevents to cause the uneven advantage of filter core flow because of the natural gas extrusion.
Description
Technical Field
The present disclosure relates generally to the technical field of natural gas filter elements, and in particular, to a foldable natural gas filter element.
Background
The natural gas filtering separator is largely used in a natural gas long-distance pipeline, is mainly used for removing solids and liquid drops in natural gas, and plays a very important role in protecting important equipment such as a compressor, a gas turbine, a flowmeter and the like. Natural gas is filtered in a filter to reduce solid and liquid droplet impurities in the natural gas before entering a long-distance pipeline, a filter element is replaced periodically as a core part of the filter, and a folded filter element is widely applied due to a large filtering area. The initial foldable filter core is strengthened the filter core itself through adding the annular support at the inner circle, but has the easy dirt accumulation of pleat department of filter core or because of the problem that the extrusion of waiting to filter the thing causes the filter core flow uneven, awaits improving urgently.
Disclosure of Invention
In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a foldable natural gas filter element which has high structural strength, is not easy to deform, and prevents uneven flow of the filter element caused by extrusion of a substance to be filtered.
A pleated natural gas filter element having a first axis, the filter element comprising a plurality of pleated units distributed around the first axis and integrally formed; the folding unit includes:
a first filter layer;
a second filter layer formed on the first filter layer on a side relatively close to the first axis;
a third filter layer formed on the first filter layer on a side relatively far from the first axis;
in a non-filtering state, the second filter layer and the third filter layer can maintain that one side of each folding unit relatively close to the first axis forms a first included angle with the opening facing the first axis; a second included angle with the opening facing away from the first axis is formed between two adjacent folding units; under the filtering state, the second filter layer and the third filter layer can maintain the first included angle in a first preset range and can maintain the second included angle in a second preset range.
According to the technical scheme provided by the embodiment of the application, each folding unit comprises a first folded edge and a second folded edge, a first included angle is formed between the first folded edge and the second folded edge, and the joint of the first folded edge and the second folded edge is a first round angle facing to a first axis.
According to the technical scheme provided by the embodiment of the application, in every two adjacent folding units, the second included angle is formed between the first folded edge of one folding unit and the second folded edge of the other folding unit, and the joint of the first folded edge and the second folded edge is a second round angle back to the first axis.
According to the technical scheme provided by the embodiment of the application, the thickness of the second filter layer is larger than that of the third filter layer.
According to the technical scheme provided by the embodiment of the application, the second filter layer is formed on the first filter layer by firstly heating and curing the cellulose filter material and then impregnating the cellulose filter material with phenolic resin.
According to the technical scheme provided by the embodiment of the application, the third filter layer is formed on the first filter layer by firstly heating and curing the cellulose filter material and then impregnating the cellulose filter material with phenolic resin.
According to the technical scheme provided by the embodiment of the application, the filter element further comprises sealing end covers which are injected at two ends of the folding unit.
According to the technical scheme provided by the embodiment of the application, the first filter layer comprises a pollutant receiving layer and a fine filter layer, and the fine filter layer is one side of the first filter layer close to the second filter layer; the pollutant carrying layer is one side of the first filtering layer close to the third filtering layer.
According to the technical scheme provided by the embodiment of the application, the filtering precision of the fine filtering layer, the pollutant containing layer, the second filtering layer and the third filtering layer is from high to low.
The beneficial effect of this application lies in: the filter unit is composed of the first filter layer, the second filter layer and the third filter layer, so that the filtering capacity of the filter element is higher than that of a traditional filter element; in a non-filtering state, the second filter layer and the third filter layer can maintain the folding units to form the first included angle, and the second included angle is formed between two adjacent folding units, so that the filter element forms a multi-fold structure, the filtering area of the filter element is increased, and the filtering capacity is improved; in a filtering state, the second filter layer and the third filter layer can maintain the first included angle within a first preset range and can maintain the second included angle within a second preset range, so that on the one hand, the filter element has higher structural strength and does not need to be externally supported; the second aspect prevents the natural gas from extruding to press the first included angle and the second included angle to cause uneven filter element flow in the filtering process. The application provides a pair of foldable natural gas filter core has self structural strength height, and non-deformable prevents to cause the uneven advantage of filter core flow because of treating the extrusion of filter.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a foldable natural gas filter element provided in the present application;
fig. 2 is a partial schematic structural view of a folding unit in the foldable natural gas filter element shown in fig. 1;
FIG. 3 is a schematic view of a conventional pleated filter element with a central support frame;
fig. 4 is a schematic view of a conventional pleated filter element provided with inner and outer support webs;
reference numerals: 100. a folding unit; 101. a first folded edge; 102. a second folded edge; 110. a first filter layer; 120. a second filter layer; 130. a third filter layer; 140. a first included angle; 141. a first rounded corner; 150. a second included angle; 151. a second rounded corner; 200. sealing the end cap; 300. a central support frame; 400. supporting the grid; 500. and (4) externally supporting the grids.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, a pleated natural gas filter element provided herein has a first axis, and includes a plurality of pleated units 100 distributed around the first axis and integrally formed; the folding unit 100 includes:
a first filter layer 110;
a second filter layer 120 formed on the first filter layer 110 on a side relatively close to the first axis;
a third filter layer 130 formed on the first filter layer 110 on a side relatively distant from the first axis;
in the non-filtering state, the second filter layer 120 and the third filter layer 130 can maintain a first included angle 140 formed by the side of each folding unit 100 relatively close to the first axis and opening towards the first axis; a second included angle 150 is formed between two adjacent folding units 100, and the opening faces away from the first axis; in the filtering state, the second filter layer 120 and the third filter layer 130 can maintain the first included angle 140 within a first preset range and can maintain the second included angle 150 within a second preset range.
Specifically, the first preset range is greater than 0 ° and equal to or less than 45 °, and the second preset range is greater than 0 ° and equal to or less than 45 °.
In the prior art, a center support mode is often adopted for the existing folding filter element, specifically, as shown in the figure, a center support frame 300 is arranged in the middle of the folding filter element, and the filter element is made of a single-layer material, so that the problem of reduction of treatment flow caused by the fact that pollutants are easily accumulated and blocked at the folding position of a pleat in the long-time use process of the folding filter element exists in the actual application of the center support mode; meanwhile, the pressure of natural gas also easily compresses the pleats tightly, so that the flow of the filter element is uneven, the filtering quality is influenced, and the service life of the filter element is also shortened.
In order to solve the problems that the folded positions of the pleats are accumulated with pollutants and the shapes of the pleats are easy to change, a foldable filter element shown in the drawing is derived in the prior art, in the drawing, an inner supporting mesh plate 400 is arranged on the inner side of the foldable filter element, an outer supporting mesh plate 500 is arranged on the outer side of the foldable filter element, the outer supporting mesh plate 500 is made of plastic materials, the filter element is made of single-layer materials, the fixing effect of the outer supporting plate is not strong in actual use, and the place covered by the outer supporting plate on the filter element cannot be filtered, so that the area of a filter surface is reduced, and the filter element is not beneficial to filtering.
As can be known from the comprehensive analysis of the prior art, in the prior art, a supporting structure from the outside is often adopted for the supporting mode of the folding filter element at the starting angle, as shown in the figures and the drawings, it is obvious that the self function of the filter element cannot be considered in the "external supporting" mode, and in the actual use, further trouble caused by the external supporting exists, and the supporting mode becomes chronic illness which limits the further development of the folding filter element for a long time.
Specifically, through setting up first hem 101 with the second hem 102 junction is first fillet 141 for compare in traditional folding filter core, the filter core that this application provided has with the bigger area of contact of natural gas, has increased the filter effect of filter core.
Further, the joint of the first flange 101 of one folding unit 100 and the second flange 102 of the other folding unit 100 in two adjacent folding units 100 is the second rounded corner 151, so that natural gas can have a larger contact area with the filter element when passing between the adjacent folding units 100, and the filtering effect of the filter element is increased.
Further, the second filter layer 120 is formed on the first filter layer 110 by heating and curing a cellulose filter material, and then impregnating the cellulose filter material with a phenol resin; the third filter layer 130 is formed on the first filter layer 110 by first heating and curing a cellulose filter material and then impregnating the cellulose filter material with a phenol resin; through the mode processing back of heating solidification cellulose filter media structural strength can promote by a wide margin, after rethread phenolic resin flooding for the filter core that this application provided has better structural strength, need not consolidate through outer support, has simplified the recovery of filter core structure and convenient later stage filter core.
Further, since the folding unit 100 is divided into the first filter layer 110, the second filter layer 120, and the third filter layer 130, the folding unit 100 improves the filtering efficiency by the arrangement of the multi-layer filtering structure.
The filter core that this application provided has better filter effect.
Further, since the thickness of the second filter layer 120 is greater than that of the third filter layer 130, the folding unit 100 has an outward supporting effect on itself, and can maintain its strength when being pressed inward by natural gas from the outside.
Further, end cover 200 has been moulded plastics at filter core both ends, end cover 200 adopts for gelatineous material, compares in traditional metal end cover, and is gelatineous end cover 200 self has good leakproofness, need not additionally install the sealing washer additional, makes on the one hand and has saved manufacturing cost, and on the other hand makes the filter core is more convenient when retrieving.
Further, the natural gas and some smaller droplet impurities finally pass through the fine filtering layer, and the droplet impurities accumulate on the second filtering layer 120 to form large droplets and precipitate, so as to obtain relatively pure natural gas.
To further illustrate the benefits of the present application, the following are a list of parameters for the filter cartridge of the present invention and two conventional filter cartridges, respectively: under the condition that the two conventional filter elements are not internally supported and externally supported, after a plurality of single-layer filter elements are tested, the average value of the self stiffness of the filter elements is less than or equal to 2000 Gelail, and the filter element provided by the application is provided with the second filter layer 120 and the third filter layer 130, so that after a plurality of filter elements are tested, the average value of the self stiffness of the filter elements is more than or equal to 200000 Gelail; the filtering efficiency of the two existing filter elements is 1 mu m @ 98%, and the filtering efficiency of the filter element provided by the application can reach 0.3 mu m @ 99.5% due to the addition of the second filtering layer 120 and the third filtering layer 130; the two existing filter elements are measured for multiple times, the dirt holding capacity of the filter element is more than or equal to 220 g/filter, and the filter element provided by the application can be measured for multiple times to obtain more than or equal to 840 g/filter due to the combined action of the second filter layer 120, the third filter layer 130 and the dirt holding layer.
Further, the traditional folding filter element provided with the cylindrical inner support is lack of support among folds of the filter element, so that the natural gas flow is uneven due to compaction among the folds under the extrusion of the natural gas; the traditional folding filter element with the latticed inner support and the latticed outer support solves the problem of uneven natural gas flow caused by compression between folds, but because the support body does not have filtering performance, the contact area of natural gas and the folding filter element is reduced when the support body covers the surface of the folding filter element, and the filtering effect is poor; the application provides a folding filter element has changed in the past and has increased the method of filter element structural strength through establishing "outside support" additional, through setting up second filter layer 120 and third filter layer 130 to when the mode of a "self-supporting" improves the intensity of filter element self, because second filter layer 120 and third filter layer 130 have the filter effect, so the folding filter element that this application provided compromises and has stronger filter capacity when having high strength structure.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (9)
1. A foldable natural gas cartridge, the cartridge having a first axis, characterized in that it comprises a number of folding units (100) distributed around the first axis and integrally formed; the folding unit (100) comprises:
a first filter layer (110);
a second filter layer (120) formed on the first filter layer (110) relatively close to the first axis side;
a third filter layer (130) formed on the first filter layer (110) on a side relatively distant from the first axis;
in the non-filtering state, the second filter layer (120) and the third filter layer (130) can maintain a first included angle (140) formed by the side, relatively close to the first axis, of each folding unit (100) and opening towards the first axis; a second included angle (150) with the opening facing away from the first axis is formed between two adjacent folding units (100); in a filtering state, the second filter layer (120) and the third filter layer (130) can maintain the first included angle (140) within a first preset range and can maintain the second included angle (150) within a second preset range.
2. A foldable natural gas cartridge according to claim 1, wherein each folding unit (100) comprises a first flap (101) and a second flap (102), the first flap (101) and the second flap (102) forming the first angle (140) therebetween, and the junction of the first flap (101) and the second flap (102) presenting a first rounded corner (141) towards the first axis.
3. A foldable natural gas filter element according to claim 2, wherein, in every two adjacent folding units (100), the first fold edge (101) of one folding unit (100) and the second fold edge (101) of the other folding unit (100) form the second included angle (150), and the joint of the two forms a second round corner (151) facing away from the first axis.
4. The pleated natural gas filter cartridge of claim 1, wherein the thickness of the second filter layer (120) is greater than the thickness of the third filter layer (130).
5. The natural gas pleated filter element according to claim 1, wherein the second filter layer (120) is formed on the first filter layer (110) by heat-curing a cellulose filter and impregnating the cellulose filter with a phenol resin.
6. The natural gas pleated filter element according to claim 1, wherein the third filter layer (130) is formed on the first filter layer (110) by heat-curing a cellulose filter and impregnating the cellulose filter with a phenol resin.
7. The folding natural gas filter element according to claim 1, further comprising end caps (200) injection molded at both ends of the folding unit (100).
8. The folding natural gas filter element according to claim 1, wherein the first filter layer (110) comprises a pollutant receiving layer and a fine filter layer, and the fine filter layer is a side of the first filter layer (110) close to the second filter layer (120); the pollutant containing layer is one side of the first filter layer (110) close to the third filter layer (130).
9. The folding natural gas filter element according to claim 8, wherein the fine filter layer, the pollutant receiving layer, the second filter layer (120) and the third filter layer (130) have a high filtering precision to a low filtering precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210432879.1A CN114733282A (en) | 2022-04-24 | 2022-04-24 | Foldable natural gas filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210432879.1A CN114733282A (en) | 2022-04-24 | 2022-04-24 | Foldable natural gas filter core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114733282A true CN114733282A (en) | 2022-07-12 |
Family
ID=82283603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210432879.1A Pending CN114733282A (en) | 2022-04-24 | 2022-04-24 | Foldable natural gas filter core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114733282A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050217226A1 (en) * | 2004-04-05 | 2005-10-06 | 3M Innovative Properties Company | Pleated aligned web filter |
| WO2011049926A1 (en) * | 2009-10-19 | 2011-04-28 | Lpd Technologies, Inc. | Embossed fluid filter element |
| CN102188848A (en) * | 2010-03-11 | 2011-09-21 | 浙江瑞普环境技术有限公司 | High-flux high-dirt-holding-capacity filtering element and preparation method thereof |
| CN202538651U (en) * | 2011-12-05 | 2012-11-21 | 杭州科百特过滤器材有限公司 | Folding round-table filter element |
| CN109276928A (en) * | 2018-12-06 | 2019-01-29 | 南京中电节能有限公司 | Gradual-change bore diameter gradient filtration formula foldable filter element |
| CN209254360U (en) * | 2018-10-31 | 2019-08-16 | 杭州日盛净化设备有限公司 | Filter with folding type filter element |
-
2022
- 2022-04-24 CN CN202210432879.1A patent/CN114733282A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050217226A1 (en) * | 2004-04-05 | 2005-10-06 | 3M Innovative Properties Company | Pleated aligned web filter |
| WO2011049926A1 (en) * | 2009-10-19 | 2011-04-28 | Lpd Technologies, Inc. | Embossed fluid filter element |
| CN102188848A (en) * | 2010-03-11 | 2011-09-21 | 浙江瑞普环境技术有限公司 | High-flux high-dirt-holding-capacity filtering element and preparation method thereof |
| CN202538651U (en) * | 2011-12-05 | 2012-11-21 | 杭州科百特过滤器材有限公司 | Folding round-table filter element |
| CN209254360U (en) * | 2018-10-31 | 2019-08-16 | 杭州日盛净化设备有限公司 | Filter with folding type filter element |
| CN109276928A (en) * | 2018-12-06 | 2019-01-29 | 南京中电节能有限公司 | Gradual-change bore diameter gradient filtration formula foldable filter element |
Non-Patent Citations (1)
| Title |
|---|
| 丁启圣等: "《新型实用过滤技术》", 冶金工业出版社, pages: 68 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4154688A (en) | Collapse-resistant corrugated filter element | |
| KR100329140B1 (en) | Filters, methods of making filters and filter methods | |
| EP1554028B1 (en) | Filterelement including filtration media with multi-layer pleat support | |
| US7931725B2 (en) | Fluted filter apparatus | |
| US20120246907A1 (en) | Canister air filter and method for fabricating the same | |
| US9744484B2 (en) | Helically wrapped filter | |
| US20060107638A1 (en) | High efficiency, low restriction, cost effective filter | |
| JP2009515096A (en) | Seal structure of filter element, filter element assembly and method | |
| JP2013532249A (en) | Improved filters for internal combustion engines | |
| WO2005082484A1 (en) | Pleated corrugated filter media | |
| CN104421062A (en) | Air filter system and air filter element for an air filter system | |
| US20150343341A1 (en) | Filter elements and methods for filtering fluids | |
| US7678170B2 (en) | Filter system | |
| CN208642118U (en) | A kind of folding membrane filter backwashed | |
| CN114733282A (en) | Foldable natural gas filter core | |
| AU2008242369B2 (en) | Improved sealing for liquid filter | |
| CN108457783B (en) | Fuel filter element, spin-on type fuel filter and plastic shell fuel filter | |
| US6293410B1 (en) | No-cure fuel filter and method for making same | |
| KR102330928B1 (en) | Support and drainage material, filter, and method of use | |
| CN110072605A (en) | Tetrahedron filter media | |
| CN108557921A (en) | Filter element | |
| CN212758063U (en) | Filter element | |
| KR102338676B1 (en) | Support and drainage material, filter, and method of use | |
| CN211885951U (en) | Novel wave-folding filter element | |
| CN207253974U (en) | The extra large pa ash-clearing structure of one kind filtering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |