CN203577403U - Filtering core of multilayered sintering type backwashing filter - Google Patents
Filtering core of multilayered sintering type backwashing filter Download PDFInfo
- Publication number
- CN203577403U CN203577403U CN201320760346.2U CN201320760346U CN203577403U CN 203577403 U CN203577403 U CN 203577403U CN 201320760346 U CN201320760346 U CN 201320760346U CN 203577403 U CN203577403 U CN 203577403U
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- layer
- sintering
- dispersion
- filtering
- multilayered
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- Expired - Lifetime
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- 238000001914 filtration Methods 0.000 title claims abstract description 18
- 238000005245 sintering Methods 0.000 title claims abstract description 17
- 238000011001 backwashing Methods 0.000 title abstract 5
- 239000010410 layer Substances 0.000 claims abstract description 59
- 239000006185 dispersion Substances 0.000 claims abstract description 21
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 4
- 239000002131 composite material Substances 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000498 stratum granulosum Anatomy 0.000 description 1
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Abstract
The utility model discloses a filtering core of a multilayered sintering type backwashing filter. The essentials of the technical scheme provided by the utility model are as follows: according to the filtering core of the multilayered sintering type backwashing filter, a filtering net on a filtering net barrel is sequentially provided with a first reinforcing layer, a second reinforcing layer, a first dispersion layer, a filtering precision control layer, a second dispersion layer and a protective layer from inside to outside; an integrated composite sintering net is formed by sintering the five layers, including the second reinforcing layer, the first dispersion layer, the filtering precision control layer, the second dispersion layer and the protective layer, of the outer layer; and a gap is formed between the first reinforcing layer of the inner layer and the composite sintering net. The filtering core of the multilayered sintering type backwashing filter is long in operation period; the initial pressure after backwashing is reduced; and the service life of equipment is prolonged and the operation cost is reduced.
Description
Technical field
The utility model relates to a kind of backwash filter filter core, is specifically related to a kind of multi-layer sintering formula backwash filter filter core.
Background technology
Petrochemical industry raw material needs deep processing to improve the quality of product, and filtering technique is generally applied in the technical process such as hydrofinishing, hydrocracking, hydrotreatment.In hydrogenation process, the clean level of feedstock oil directly affects the normal work of hydrogenation reactor, and feedstock oil solids content is too high, enter after reactor, its particle deposition, on beds surface, causes logistics uneven distribution, reactor pressure decrease increases, catalyst lose activity (poisoning).When serious, device stops and safeguards, backwash filter is set when feedstock oil motion device, this backwash filter adopts five layers of sintered meshwork filter core, and the subject matter of sintered meshwork filter core is that initial drop is large after certain recoil frequency, backwash is not thorough, and filter core Acceptable life is short.
Summary of the invention
The technical problem that the utility model solves has been to provide a kind of multi-layer sintering formula backwash filter filter core, uses this backwash filter filter core can solve after certain recoil frequency, and initial drop is large, backwash is not thorough, operating cost is high, and the cycle of operation is long, the problem that maintenance workload is large.
The technical solution of the utility model is: multi-layer sintering formula backwash filter filter core, mainly by upper end cover, bottom end cover, inner frame, screen tube and shell form, wherein screen tube be wrapped in the outer circumferential walls of inner frame and the two ends up and down of screen tube respectively with upper end cover and bottom end cover welding, it is characterized in that: the filter screen on described screen tube is followed successively by the first enhancement Layer from inside to outside, the second enhancement Layer, the first dispersion layer, filtering accuracy key-course, the second dispersion layer and protective layer, outer field five layer of second enhancement Layer wherein, the first dispersion layer, filtering accuracy key-course, the second dispersion layer and protective layer sintering and the complex sintered net of shape all-in-one-piece in vacuum drying oven, between the first enhancement Layer of internal layer and complex sintered net, be provided with gap.
Design principle of the present utility model is: between protective layer and filtering accuracy key-course, be provided with the second dispersion layer, this second dispersion layer makes filter cake (being deposited in the stratum granulosum of screen surface) be evenly distributed in cartridge surface, filter cake thickness further improves in the whole cartridge surface uniformity, and while being conducive to backwash, filter cake removes; Owing to being provided with gap between the first enhancement Layer of internal layer and complex sintered net, be not sintered together, like this when backwash, reverse flow liquid is first just divided into countless tiny liquid stream, after certain distance, be further divided into again countless tiny liquid stream, through after the dividing equally of the first dispersion layer, flow through filtering accuracy key-course again, and accelerating liquid flowing velocity, make filter cake depart from cartridge surface, reduce the forward voltage drop of liquid stream, make the maintenance period of equipment lengthen simultaneously, reduced maintenance cost, improved the service efficiency of equipment.
The beneficial effects of the utility model are: after 1, on-the-spot hydrotreater goes into operation, after multi-layer sintering formula backwash filter filter core rinses for about 400 times, initial drop maintains below 10KPa, has improved the power of regeneration of filter core; 2, the cycle of operation long because initial drop is low after backwash, need not safeguard equipment, extended the service life of equipment; 3, operating cost reduces, and filter core needn't be changed with too early in the outer regeneration of device, has reduced the investment of filter core, has reduced operating cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, and Fig. 2 is the cutaway view of the complex sintered net of the utility model.
Drawing explanation: 1, upper end cover, 2, bottom end cover, 3, inner frame, 4, screen tube, 5, housing, the 6, second enhancement Layer, the 7, first dispersion layer, 8, filtering accuracy key-course, the 9, second dispersion layer, 10, protective layer.
The specific embodiment
Describe by reference to the accompanying drawings embodiment in detail.Multi-layer sintering formula backwash filter filter core, mainly by upper end cover 1, bottom end cover 2, inner frame 3, screen tube 4 and shell 5 form, wherein screen tube 4 be wrapped in the outer circumferential walls of inner frame 3 and the two ends up and down of screen tube 4 respectively with upper end cover 1 and bottom end cover 2 welding, filter screen on described screen tube 4 is followed successively by the first enhancement Layer from inside to outside, the second enhancement Layer 6, the first dispersion layer 7, filtering accuracy key-course 8, the second dispersion layer 9 and protective layer 10, outer field five layer of second enhancement Layer 6 wherein, the first dispersion layer 7, filtering accuracy key-course 8, the second dispersion layer 9 and protective layer 10 sintering and the complex sintered net of shape all-in-one-piece in vacuum drying oven, between the first enhancement Layer of internal layer and complex sintered net, be provided with gap.
More than show and described basic principle of the present utility model; principal character and advantage; do not departing under the prerequisite of the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall into claimed scope of the present utility model.
Claims (1)
1. multi-layer sintering formula backwash filter filter core, mainly by upper end cover, bottom end cover, inner frame, screen tube and shell form, wherein screen tube be wrapped in the outer circumferential walls of inner frame and the two ends up and down of screen tube respectively with upper end cover and bottom end cover welding, it is characterized in that: the filter screen on described screen tube is followed successively by the first enhancement Layer from inside to outside, the second enhancement Layer, the first dispersion layer, filtering accuracy key-course, the second dispersion layer and protective layer, outer field five layer of second enhancement Layer wherein, the first dispersion layer, filtering accuracy key-course, the second dispersion layer and protective layer sintering and the complex sintered net of shape all-in-one-piece in vacuum drying oven, between the first enhancement Layer of internal layer and complex sintered net, be provided with gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320760346.2U CN203577403U (en) | 2013-11-28 | 2013-11-28 | Filtering core of multilayered sintering type backwashing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320760346.2U CN203577403U (en) | 2013-11-28 | 2013-11-28 | Filtering core of multilayered sintering type backwashing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203577403U true CN203577403U (en) | 2014-05-07 |
Family
ID=50575381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320760346.2U Expired - Lifetime CN203577403U (en) | 2013-11-28 | 2013-11-28 | Filtering core of multilayered sintering type backwashing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203577403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107961593A (en) * | 2017-12-18 | 2018-04-27 | 四会市华通金属筛网制品有限公司 | Multilayer metal compound sintered meshwork |
| CN115253427A (en) * | 2022-07-14 | 2022-11-01 | 新乡市金宸过滤有限公司 | Backwashing filter element for hydraulic support |
-
2013
- 2013-11-28 CN CN201320760346.2U patent/CN203577403U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107961593A (en) * | 2017-12-18 | 2018-04-27 | 四会市华通金属筛网制品有限公司 | Multilayer metal compound sintered meshwork |
| CN107961593B (en) * | 2017-12-18 | 2023-09-22 | 四会市华通金属筛网制品有限公司 | Multi-layer metal composite sintering net |
| CN115253427A (en) * | 2022-07-14 | 2022-11-01 | 新乡市金宸过滤有限公司 | Backwashing filter element for hydraulic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |