CN110420517A - Coalescence filter core structure and filter device - Google Patents
Coalescence filter core structure and filter device Download PDFInfo
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- CN110420517A CN110420517A CN201910742952.3A CN201910742952A CN110420517A CN 110420517 A CN110420517 A CN 110420517A CN 201910742952 A CN201910742952 A CN 201910742952A CN 110420517 A CN110420517 A CN 110420517A
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- 238000004581 coalescence Methods 0.000 title claims abstract description 83
- 238000011045 prefiltration Methods 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims description 57
- 239000012535 impurity Substances 0.000 claims description 23
- 230000036961 partial effect Effects 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 11
- 230000005012 migration Effects 0.000 claims description 5
- 238000013508 migration Methods 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 230000002776 aggregation Effects 0.000 claims description 3
- 238000004220 aggregation Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000011162 core material Substances 0.000 description 97
- 239000007789 gas Substances 0.000 description 66
- 239000000463 material Substances 0.000 description 15
- 238000001914 filtration Methods 0.000 description 14
- 239000007787 solid Substances 0.000 description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000000758 substrate Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 229920000784 Nomex Polymers 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000004763 nomex Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007750 plasma spraying Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
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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
- B01D46/0002—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
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
This application provides a kind of Coalescence filter core structure and filter devices, it include: the first inner frame, at least one internal drain runner and air inlet are provided on the bottom end of first inner frame, the first inner frame, which encloses, to be set to form space to be filtered, and space to be filtered is connected to air inlet；It is sequentially sleeved at outside the first inner frame: pre-filter layer and acquisition layer；The second inner frame being set in outside acquisition layer, forms clearance space between acquisition layer and the second inner frame, clearance space is connected to internal drain runner；The outer skeleton being set in outside the second inner frame forms coalescence space between the second inner frame and outer skeleton；Filter core in coalescence space is set；Upper end cover, upper end cover is at least by the plug at end part in space to be filtered；Lower cover, lower cover are provided with the opening for being inserted into the first inner frame, and the bottom end of lower cover and the first inner frame is detachably connected.Coalescence filter core structure provided by the present application and filter device are able to extend the service life of Coalescence filter core.
Description
Technical field
The present invention relates to gas-liquid filteration fields, and in particular to a kind of Coalescence filter core structure and filter device.
Background technique
In natural gas long-distance transmission pipeline, natural gas generally can all be entrained with solid and liquid impurity, these impurity
Presence can endanger the safety of pipeline instrument and compressor set, it is therefore desirable to corresponding gas-liquid filteration device is set and was for example coalesced
Filter removes the impurity in natural gas.And the core component for being used to remove the coalescing filter of fine droplet in natural gas is poly-
Junction type filter core, filtering accuracy is more demanding, is mainly used for removing 1 μm of droplet particles below.
Filter cartridge construction and filter device in the prior art please refer to Fig.1 to Fig.3.As shown in Figure 1 to Figure 3, coalescence filter
Core 2, as supporting, winds 203 filter material of coalescing layer by the second inner frame 201 on the outside, is then fastened using outer skeleton 202 poly-
203 filter material of layer is tied, also further winds 204 filter material of drain layers in the outside of outer skeleton 202.22 He of upper end cover of Coalescence filter core 2
The lower cover 23 of Coalescence filter core 2 makes dusty gas containing liquid to seal inside and outside skeleton and coalescing layer 203,204 both ends of drain layers
It can only be radial through Coalescence filter core 2.Be using the mechanism that the device is filtered: the gas containing drop or solid particle is by mistake
The air inlet pipeline 3 of filter enters, and then gas is entered under the action of pressure difference by the hole of Coalescence filter core 2, when gas is by gathering
When tying filter core 2, the fiber in 203 filter material of coalescing layer intercepts the drop in gas, then passes through the collision between drop
Or the interaction between drop and fiber, so that small drop forms larger drop inside filter material, and then migrate to drain
Layer 204 is simultaneously discharged, and the liquid of outflow is expelled to outside filter through the first drain line 4, and the gas of filtered cleaning is from mistake
The gas exhaust piping 5 of filter is discharged.
Since the filtering accuracy of Coalescence filter core is more demanding, the aperture of Coalescence filter core smaller need to can just be met the requirements.And it is defeated
Natural gas impurities are complex in feed channel, and liquid impurity mainly includes condensate, free water and compresses by compressor station
The high viscosity droplets such as the lubricating oil carried secretly after unit.Especially in multiphase flow operating condition, when operating condition changes greatly, lead to gas
Middle liquid content and dustiness fluctuation are larger.When being in high concentration impurities, big partial size drop operating condition, coalescence filter in the prior art
The treating capacity of core is unable to satisfy requirement, and congestion in the air inlet side of Coalescence filter core, is blocked filter core, caused by the impurity in gas
Filter core pressure drop rapidly rises, so that the drop that Coalescence filter core has captured is again introduced into lower faint breath under the drive of air-flow
Stream, causes the increase of concentration of liquid drops in downstream airflow, filter efficiency decline, the operation of filter must be suspended at this time and need and
Shi Genghuan filter core.
Once the pressure drop of filter core is excessive in the prior art, need to replace filter material.Due to leading between filter material and end cap
It is sealed frequently with the fixed mode of glue, needs to replace whole Coalescence filter core when replacing filter material, filter core can not weigh
It is multiple to utilize.In addition, if replacement is frequently, operating cost is higher since filter core material therefor is expensive.
Summary of the invention
In consideration of it, this application provides a kind of Coalescence filter core structure and filter device, in the higher feelings of dustiness containing liquid
Under condition, it can largely improve filter core pressure drop and increase too fast problem, extend the service life of Coalescence filter core.It provides
Technical solution is as described below:
A kind of Coalescence filter core structure, comprising: the first inner frame, first inner frame have opposite top and bottom end,
At least one internal drain runner is provided on the bottom end, first inner frame, which encloses, to be set to form space to be filtered；Successively cover
It is located at outside first inner frame: the acquisition layer for the pre-filter layer of impurity screening and for capturing drop；It is set in
The second inner frame outside the acquisition layer forms clearance space between the acquisition layer and second inner frame, between described
Gap space is connected to the internal drain runner；The outer skeleton being set in outside second inner frame, second inner frame
Coalescence space is formed between the outer skeleton；Filter core in the coalescence space is set；It is arranged on the outer skeleton top
Upper end cover, by the plug at end part in the space to be filtered after the top cooperation of the upper end cover and first inner frame；If
The lower cover in the outer skeleton bottom end is set, the bottom end of the lower cover and first inner frame is detachably connected, under described
End cap is provided with the air inlet being connected to the space to be filtered.
As a preferred embodiment, there is inclination between the extending direction and horizontal plane of the internal drain runner
Angle, the internal drain runner are connected to the space to be filtered.
As a preferred embodiment, the filter core includes: coalescing layer and drain layers, the coalescing layer and the row
Liquid layer is sequentially sleeved in the coalescence space, and the aperture of the coalescing layer is less than the aperture of the drain layers, the coalescing layer
It is provided with the lyophoby channel of lyophoby characteristic, the drain layers are provided with the lyophily channel of lyophily characteristic；
Drop in gas can migrate along the lyophoby channel to the drain layers, in gas after coalescing layer aggregation
The partial drop migrated under the drive of stream to the drain layers can be expelled to outside filter core through the hole of the drain layers, part liquid
Drop can be flowed along the lyophily channel.
As a preferred embodiment, the lyophoby channel has multiple, multiple lyophoby channel spacing settings,
There is pre-determined tilt angle, the drop carried in gas can be along described pre- between the extending direction and horizontal plane in the lyophoby channel
Constant inclination rake angle is migrated to the drain layers.
As a preferred embodiment, the pre-determined tilt angle is 30 °~60 °.
As a preferred embodiment, the lyophily channel has multiple, multiple lyophily channel spacing settings,
The extending direction and horizontal direction in the lyophily channel are perpendicular, and the partial drop of migration to the drain layers can be through the lyophily
Channel flows downward.
As a preferred embodiment, the lyophily channel is specially nano fibrous membrane, the nano fibrous membrane is multiple
Conjunction forms the lyophily channel in the drain layers, and the diameter of the nano fibrous membrane is 0.1~0.5 μm.
As a preferred embodiment, the upper end cover is provided with and matches with the top of first inner frame
Groove, the lower cover are threadedly coupled with the bottom end of first inner frame.
As a preferred embodiment, the fibre diameter of the pre-filter layer is 2~15 μm, the fibre of the acquisition layer
Tieing up diameter is 15~25 μm.
A kind of filter device, the shell with hollow cavity, the shell are provided with gas exhaust piping and air inlet pipeline, wrap
It includes:
It is arranged in the intracorporal Coalescence filter core structure of the hollow cavity, is formed between the Coalescence filter core structure and the shell
Drainage space；
First drain line, first Drainage pipe are connected to the drainage space；
Wherein, the Coalescence filter core structure includes: the first inner frame, and first inner frame has opposite top and bottom
End, is provided at least one internal drain runner and air inlet on the bottom end, first inner frame enclose set to be formed it is to be filtered
Space, the space to be filtered are connected to the air inlet, and the air inlet is connected to the air inlet pipeline；It is sequentially sleeved at institute
It states outside the first inner frame: the acquisition layer for the pre-filter layer of impurity screening and for capturing drop；It is set in the collection
The second inner frame outside liquid layer forms clearance space, the clearance space between the acquisition layer and second inner frame
It is connected to the internal drain runner；The outer skeleton being set in outside second inner frame, second inner frame with it is described
Coalescence space is formed between outer skeleton；Filter core in the coalescence space is set；The upper end on the outer skeleton top is set
Lid, the upper end cover is at least by the plug at end part in the space to be filtered；The lower cover of the outer skeleton bottom end is set, it is described
Lower cover is provided with the opening for being inserted into first inner frame, and the bottom end of the lower cover and first inner frame is removable
Unload connection；
Second drain line, second drain line are connected to the internal drain runner；
For detecting the pressure sensing cell of the pressure parameter of the Coalescence filter core structure, the pressure sensing cell setting
On the gas exhaust piping and the air inlet pipeline.Coalescence filter core structure and the filter device tool that the application embodiment provides
Have the advantage that and feature: when in multiphase flow and when operating condition changes greatly, carried in gas a large amount of, big partial size drop with
And solid particle.Gas by air inlet enter space to be filtered, pass sequentially through the first inner frame, pre-filter layer and acquisition layer into
Row filtering, is then entered in filter core after being filtered and is discharged by second inner frame.In the process, when passing through pre- mistake
When filtering layer, pre-filter layer can intercept the most solid impurity carried secretly in gas, to prevent solid impurity from blocking
Filter core；When passing through acquisition layer, acquisition layer can capture large-sized drop in time, and the drop of capture will be along the first inner frame bottom end
On inside drain runner be discharged in time, to avoid impacting the subsequent filter of gas.In this way, to enter in filter core
Gas dust-laden, concentration containing liquid significantly reduce, increase too fast problem so as to largely improve filter core pressure drop, extend
The service life of filter core reduces operating cost.
Further, the filter device is additionally provided with the pressure of the pressure parameter for detecting the Coalescence filter core structure
Detection unit, pressure sensing cell are respectively set on gas exhaust piping and air inlet pipeline.When carrying a large amount of, big partial size in gas
When drop and solid particle, when detecting that the pressure drop of Coalescence filter core structure increases, the filter of the second inner frame can retained
On the basis of core and outer skeleton, only dismantles the pre-filter layer and acquisition layer on the first inner frame and replaced, to keep away
The frequent problem of filter element replacing is exempted from.
Referring to following description and accompanying drawings, specific implementations of the present application are disclosed in detail, specify the original of the application
Reason can be in a manner of adopted.It should be understood that presently filed embodiment is not so limited in range.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It uses in a other embodiment, is combined with the feature in other embodiment, or the feature in substitution other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Coalescence filter core filter device in the prior art；
Fig. 2 is the structural schematic diagram of Coalescence filter core in the prior art；
Fig. 3 is A-A cross-sectional view in Fig. 2；
Fig. 4 is the structural schematic diagram for the filter device that the application embodiment provides；
Fig. 5 is the schematic diagram for the Coalescence filter core structure that the application embodiment provides；
Fig. 6 is B-B cross-sectional view in Fig. 5；
Fig. 7 is the first inner framework structure schematic diagram that the application embodiment provides；
Fig. 8 is C-C cross-sectional view in Fig. 7；
Fig. 9 is the coalescence schematic diagram of a layer structure that the application embodiment provides；
Figure 10 is the drain schematic diagram of a layer structure that the application embodiment provides.
Description of symbols:
1, shell；2, filter core/Coalescence filter core；200, drainage space；201, the second inner frame；202, outer skeleton；203, gather
Tie layer；203a, lyophoby channel；204, drain layers；204a, lyophily channel；210, space to be filtered；211, the first inner frame；
211a, external screw thread；212, pre-filter layer；213, acquisition layer；22, upper end cover；23, lower cover；231, internal drain runner；3, into
Air pipe；4, the first drain line；5, gas exhaust piping；6, the second drain line.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, elaborate to technical solution of the present invention, it should be understood that these
Embodiment is merely to illustrate the present invention rather than limitation range, after the present invention has been read, those skilled in the art couple
The modification of various equivalent forms of the invention is each fallen in range defined herein.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", "upper",
"lower", "left", "right" and similar statement for illustrative purposes only, are not meant to be the only embodiment.
The application embodiment provides a kind of Coalescence filter core structure, please refers to Fig. 4 to Fig. 7, comprising: the first inner frame
211, first inner frame 211 has opposite top and bottom end, at least one internal drain stream is provided on the bottom end
Road 231 and air inlet, first inner frame 211, which encloses, to be set to form space 210 to be filtered, the space 210 to be filtered with it is described
Air inlet connection；Be sequentially sleeved at outside first inner frame 211: for impurity screening pre-filter layer 212 and be used for
Capture the acquisition layer 213 of drop；The second inner frame 201 being set in outside the acquisition layer 213, the acquisition layer 213 and institute
It states and forms clearance space between the second inner frame 201, the clearance space is connected to the internal drain runner 231；It is set in
Outer skeleton 202 outside second inner frame 201 forms coalescence between second inner frame 201 and the outer skeleton 202
Space；Filter core 2 in the coalescence space is set；The upper end cover 22 on 202 top of outer skeleton, the upper end cover are set
22 at least by the plug at end part in the space 210 to be filtered；The lower cover 23 of 202 bottom end of outer skeleton is set, under described
End cap 23 is provided with the opening for being inserted into first inner frame 211, the lower cover 23 and first inner frame 211
Bottom end is detachably connected.
When being in multiphase flow and operating condition changes greatly, a large amount of, big partial size drop and solid are carried in gas
Grain.Gas enters space 210 to be filtered by air inlet, passes sequentially through the first inner frame 211, pre-filter layer 212 and acquisition layer
213 are filtered, and are then entered in filter core 2 after being filtered and are discharged by second inner frame 201.In the process,
When passing through pre-filter layer 212, pre-filter layer 212 can intercept the most solid impurity carried secretly in gas, thus
Prevent solid impurity from blocking filter core 2；When passing through acquisition layer 213, acquisition layer 213 can capture large-sized drop in time, capture
Drop by 211 bottom end of the first inner frame inside drain runner 231 in time be discharged, to avoid the subsequent mistake to gas
Filter impacts.In this way, significantly reducing the gas dust-laden entered in filter core 2, concentration containing liquid, so as to largely
Improve 2 pressure drop of filter core and increase too fast problem, extend the service life of filter core 2, reduces operating cost.
First inner frame 211 is used to provide support for pre-filter layer 212 and acquisition layer 213.First in-seam
Frame 211 has the ontology longitudinally extended, and the ontology offers through-hole along its longitudinal direction, for gas circulation.Described first
The cylindrical structure of inner frame 211, first inner frame 211, which encloses, to be set to form space 210 to be filtered.Pre-filter layer 212 and liquid collecting
Layer 213 is sequentially sleeved at the outside of the first inner frame 211.The pre-filter layer 212 is for filtering out the big portion carried secretly in gas
The solid impurity divided, the acquisition layer 213 can capture large-sized drop in gas in time.Pre-filter layer 212 and acquisition layer
213 can use such as glass fibre, polypropylene, polyester fiber and metallic fiber material.
Wherein, the column construction includes cylindrical structure, triangular prism structure, tetragonous rod structure etc., including but not limited to
This, in order to describe conveniently, the embodiment of the present application illustrates all parts by taking cylindrical structure as an example, this field
Technical staff is it is understood that cylindrical structure is only a kind of example, not to the limitation of the application.
Fig. 5, Fig. 7 and Fig. 8 are please referred to, first inner frame 211 has opposite top and bottom end, sets on the bottom end
It is equipped at least one internal drain runner 231 and air inlet, the air inlet is connected to the space 210 to be filtered.Gas by
The air inlet enters the space 210 to be filtered, is successively handled through pre-filter layer 212 and acquisition layer 213, through the collection
The drop that liquid layer 213 captures can be expelled to the outside of the Coalescence filter core structure along the internal drain runner 231.Specifically,
The width of the bottom end of first inner frame 211 is greater than the pre-filter layer 212 and the acquisition layer 213, and the acquisition layer 213 is caught
The liquid obtained is fallen under gravity into the bottom end of first inner frame 211, is flowed out along the internal drain runner 231.
Preferably, the fibre diameter of the pre-filter layer 212 is 2-15 μm, and the fibre diameter of the acquisition layer 213 is 15-
25μm.Gas first passes through the pre-filter layer 212 and acquisition layer 213 is filtered, then enters to through the second inner frame 201 described
Filter core 2.Wherein, pre-filter layer 212 intercepts the solid impurity carried in gas, and acquisition layer 213 can be big by what is carried in gas
Granularity drop is captured, and then the inside drain runner 231 on 211 bottom end of the first inner frame is discharged drop in time, from
And prevent gas from carrying drop again in order to avoid influencing subsequent filtering link.
Further, the internal drain runner 231 extends generally direction and can have inclination angle between horizontal plane
Degree, the internal drain runner 231 are connected to the space 210 to be filtered.The horizontal plane is with Fig. 4 to installation shown in Fig. 7
For direction, the horizontal plane direction in the embodiment of the present application refer to the Coalescence filter core structure under normal operating condition, not
The filter cartridge construction for limiting the embodiment of the present application is including but is not limited to use, transport etc. other to may cause structural orientation
The direction in scene that reverse or position converts.Number the application of the internal drain runner 231 does not limit specifically
It is fixed.
In the present embodiment, internal drain runner 231 is circumferentially uniformly arranged in the bottom end of the first inner frame 211, and multiple
The internal drain runner 231 is symmetrical, and multiple internal drain runners 231 are connected to the space 210 to be filtered.
The big partial size drop captured through acquisition layer 213 just can gather space 210 to be filtered by multiple internal drain runners 231, and one
With discharge.
213 outer cover of acquisition layer is equipped with the second inner frame 201 and outer skeleton 202.Wherein, the second inner frame 201
Clearance space is formed between acquisition layer 213, the clearance space is connected to the internal drain runner 231, by acquisition layer
The drop of 213 captures is introduced into clearance space under the effect of gravity, then from the internal discharge in time of drain runner 231.
Second inner frame 201 and outer skeleton 202 all have the ontology longitudinally extended, and the ontology is longitudinal equal along it
Through-hole is offered, for gas circulation.Specifically, second inner frame 201 and the outer skeleton 202 are cylindrical
Structure, the outer skeleton 202 are set in outside first inner frame 201.Second inner frame 201 for filter core for providing
Support, encloses between second inner frame 201 and the outer skeleton 202 and sets to form coalescence space, and the filter core 2 is located at described poly-
It ties in space, the filter core 2 continues filtering through pre-filter layer 212 and acquisition layer 213 treated gas.
Upper end cover 22 is arranged in the top of outer skeleton 202, the upper end cover 22 with the outer skeleton 202, the first in-seam
It at least can be by the plug at end part in the space 210 to be filtered after the top cooperation of frame 211.Lower cover 23 is arranged in outer skeleton 202
Bottom end, lower cover 23 is provided with the opening for being inserted into first inner frame 211, in the lower cover 23 and described first
The bottom end of skeleton 211 is detachably connected.
In the present embodiment, the upper end cover 22 be provided with matched with the top of first inner frame 211 it is recessed
Slot, the lower cover 23 can be connect with the bottom end of first inner frame 211 by helicitic texture.Specifically, described first
The upper end of inner frame 211 can be inserted into the upper end cover 22 by groove, and the lower cover 23 is provided with internal thread structure, institute
It states the first inner frame 211 and is provided with the external screw thread 211a structure matched with the internal thread structure.It, can first will be upper when disassembly
End cap 22 is dismantled, and then screws off the first inner frame 211 by helicitic texture from lower cover 23, carry out pre-filter layer 212 and
The replacement of acquisition layer 213.
In present embodiment, the filter core 2 includes: coalescing layer 203 and drain layers 204, the coalescing layer 203 and the row
Liquid layer 204 is sequentially sleeved in the coalescence space, and the aperture of the coalescing layer 203 is less than the aperture of the drain layers 204, institute
The lyophoby channel 203a that coalescing layer 203 is provided with lyophoby characteristic is stated, the drain layers 204 are provided with the lyophily with lyophily characteristic
Channel 204a.Drop in gas can migrate along the lyophoby channel 203a to the row after the coalescing layer 203 aggregation
Liquid layer 204, the partial drop migrated under the drive of air-flow to the drain layers 204 can be arranged through the hole of the drain layers 204
Out to outside filter core 2, partial drop can be flowed along the lyophily channel 204a.
Specifically, the coalescing layer 203 and the drain layers 204 be arranged at the second inner frame 201 and outer skeleton 202 it
Between.Gas after pre-filtering first enters to coalescing layer 203, the coalescing layer 203 by through-hole on second inner frame 201
It is mainly made of the lesser material in aperture, selects the material with lypohydrophilic character, lesser fibre diameter can capture gas
Then the drop of the relatively small particle carried in body migrates to drain layers 204 again.Preferably, the coalescing layer 203 uses glass fibers
Wiki material.The aperture of 204 material therefor of drain layers is bigger than the aperture of coalescing layer 203, with to pass through liquid after coalescing layer 203
Body provides apocenosis passage.The drain layers 204 select the material with hydrophobic oleophobic characteristic, it is preferred that the drain layers 204 are adopted
With Nomex substrate.It is expelled under the drive of gas by the through-hole on outer skeleton 202 by the drop of the discharge of drain layers 204
It is external.
Further, as shown in figure 9, the coalescing layer 203 also sets up multiple lyophoby channel 203a with lyophoby characteristic,
Multiple lyophoby channel 203a are arranged at the surface interval of coalescing layer 203.The lyophoby channel 203a can be merged by heat
Method the oleophobic hydrophobic type tunica fibrosa with one fixed width is attached on the fiberglass substrate of coalescing layer 203.The lyophoby
Channel 203a can also be arranged on the fiberglass substrate of coalescing layer 203 with the methods of plasma spraying, surface modification.
Under normal conditions, coalescing layer 203 can soak rapidly substrate after capturing drop, in the substrate of coalescing layer 203
With several fluid passages, these fluid passages spread around, are interconnected to form large stretch of liquid regions after substrate is wetted,
Increase so as to cause the liquid content inside coalescing layer 203, liquid is not easy to be discharged at this time, easily causes the increase of filter core resistance.This Shen
Please embodiment by being provided with the lyophoby channel 203a, Neng Goufang that are spaced apart in the coalescing layer 203 with lyophily characteristic
The only formation of large stretch of liquid regions, coalescing layer 203 can be quickly discharged by lyophoby channel 203a in drop, to reduce coalescing layer
203 liquid content, while gas mobile obstacle is reduced, so that filter core pressure drop slowly increases.Preferably, the lyophoby channel 203a
Width be 10~20mm, the spacing of the adjacent lyophoby channel 203a is 20~40mm.
Further, as shown in Figure 10, the drain layers 204 are provided with multiple lyophily channels with lyophily characteristic
204a, multiple lyophily channel 204a are spaced apart on 204 surface of drain layers.The lyophily channel 204a can pass through
Oleophylic hydrophilic fiber film with one fixed width is attached on the Nomex substrate of drain layers 204 by the method for heat fusion.It is described
Lyophily channel 204a can also be arranged on the Nomex substrate of drain layers 204 with the methods of plasma spraying, surface modification.
Under normal conditions, when the liquid in coalescing layer 203 migrates to drain layers 204, due to 204 hydrophobic oleophobic of drain layers
Characteristic make liquid that can not rapidly enter the inside of drain layers 204 so that liquid coalescing layer 203 and drain layers 204 it
Between accumulate, cause 203 surface of coalescing layer formed liquid film, filter core pressure drop increase.Also, when gas passes through liquid film, it is easy to blow brokenly
Liquid film causes the gas liquid content in downstream to increase, filter element filtering failure.The application embodiment passes through in the drain with lyophoby
It is provided with the lyophily channel 204a being spaced apart on layer 204,204 surface of drain layers is capable of forming drain runner.So as to subtract
The accumulation of drop between small coalescing layer 203 and drain layers 204 reduces the formation of liquid film, effectively avoids the quick of filter core pressure drop
Increase, improves the filter effect of filter core.Preferably, the width of the lyophily channel 204a is 20~40mm, to effectively inhale
The liquid film being gathered between coalescing layer 203 and drain layers 204 is received, the spacing of the adjacent lyophily channel 204a is 20~30mm.
Preferably, the lyophily channel 204a is specially nano fibrous membrane, and the nano fibrous membrane is compounded in the drain
The lyophily channel 204a is formed on layer 204, the diameter of the nano fibrous membrane is 0.1~0.5 μm.Since nano fibrous membrane has
There is biggish specific surface area, there is very strong adsorption capacity to liquid.In this way, can be rapidly when liquid is discharged in coalescing layer 203
It is absorbed by nano fibrous membrane, to reduce the formation of 203 surface liquid film of coalescing layer.
In one embodiment, there is pre-determined tilt angle between the extending direction and horizontal plane of the lyophoby channel 203a
It spends, the drop carried in gas can be migrated along the pre-determined tilt angle to the drain layers 204.
Specifically, the drop captured in coalescing layer 203 can quickly be arranged along the pre-determined tilt angle of lyophoby channel 203a to row
Liquid layer 204, into liquid a part in drain layers 204 with the induced effect of air-flow, along drain layers 204 aperture and by
The through-hole of outer skeleton 202 is expelled to the outside of filter core 2, and another drop is then in the inside of drain layers 204 along lyophily channel 204a
It reserves downwards, filter core 2 is then discharged under airflow function.Preferably, the pre-determined tilt angle of the lyophoby channel 203a is 30 °
~60 °, while guaranteeing that drop can smoothly migrate to drain layers 204, moreover it is possible to promote the quick migration of drop.
In one embodiment, the extending direction of the lyophily channel 204a and horizontal direction are perpendicular, migration to institute
The partial drop for stating drain layers 204 can flow downward through the lyophily channel 204a.
It present invention also provides a kind of filter device, please refers to shown in Fig. 4 to Fig. 7, the filter device has hollow cavity
The shell 1 of body, the shell 1 are provided with gas exhaust piping 5 and air inlet pipeline 3, the air inlet pipeline and first inner frame 211
On air inlet connection.The filter device includes: setting in the intracorporal Coalescence filter core structure of the hollow cavity, described poly-
It ties and forms drainage space 200 between filter cartridge construction and the shell 1；First drain line 4, first Drainage pipe 4 and institute
State the connection of drainage space 200；For detecting the pressure sensing cell of pressure parameter in the space to be filtered 210.
Specifically, the shell 1 of the filter device has hollow cavity, concrete shape the application of shell 1 is not limited
It is fixed.Shell 1 has opposite closed both ends, and the side wall being disposed around between 1 roof of shell and bottom wall.The Coalescence filter core
Structure setting forms drainage space between the Coalescence filter core structure and shell 1 in the hollow cavity of the filter device
200.It can be set on the bottom wall of the shell 1 and the lower cover 23 of the Coalescence filter core structure and the first inner frame 211
The groove matched is snapped into Coalescence filter core structure on the bottom wall of shell 1 by the groove, keeps preferable stability.Institute
Sealing ring can be further provided between groove and first inner frame 211 by stating.
The side wall of the shell 1 is provided with gas exhaust piping 5 and air inlet pipeline 3, the air inlet pipeline 3 and the Coalescence filter core
Air inlet connection on first inner frame 211 of structure, gas can enter Coalescence filter core knot by the air inlet pipeline 3, air inlet
In structure.Gas after Coalescence filter core structured filter is expelled to the outside of filter device by gas exhaust piping 5, to carry out subsequent
Production application.It is additionally provided with the first drain line 4 on the filter device, is provided on the shell 1 and the first row
The aperture that liquid pipeline 4 matches, first drain line 4 is connected to the drainage space 200, through Coalescence filter core structured filter
Drop out enters drainage space 200 under the influence of gas, and is expelled to the outer of filter device by the first drain line 4
Portion.
The filter device is additionally provided with the pressure sensing cell of the pressure parameter for detecting the Coalescence filter core structure.
The pressure sensing cell can be differential pressure pickup, be separately positioned on the gas exhaust piping 5 and air inlet pipeline 3 of shell 1.
When detect the Coalescence filter core structure inside shell 1 pressure drop increase when, can retain the second inner frame 201, filter core 2 and
On the basis of outer skeleton 202, only dismantles the pre-filter layer 212 and acquisition layer 213 on the first inner frame 211 and replaced.
Especially by the mating connection relationship between upper end cover 22, lower cover 23 and the first inner frame 211, dismantled, so as to
The first inner frame 211 is taken out, and carries out the replacement of subsequent filter material, frequent problem is replaced so as to avoid filter core 2.In this implementation
In mode, the filter device further include: the second drain line 6 being connected to the space 210 to be filtered, second drain
Pipeline 6 is connected to the internal drain runner 231, and the pressure sensing cell can be set in the second drain line 6 and/or institute
It states on air inlet pipeline 3.
The big partial size drop intercepted through acquisition layer 213 can enter second drain line 6 by internal drain runner 231
In, it is then discharged out to the outside of filter device.In the present embodiment, internal drain runner 231 is in the bottom end of the first inner frame 211
It is circumferentially uniformly arranged, multiple internal drain runners 231 are connected to the space 210 to be filtered.Second drain pipe
Road 6 can be set in the bottom of 23 air inlet of lower cover, be connected to the space 210 to be filtered.Through multiple internal drains
The drop that runner 231 captures converges to the space to be filtered 210, then passes through the discharge jointly of the second drain line 6.
In one embodiment, second drain line 6 is connected to first drain line 4, the second row
Valve can be set in liquid pipeline 6 and first drain line 4, to control the discharge of liquid.
In order to better understand the application, the course of work to filter device provided by the present application is further explained below
It states:
The gas for being entrained with drop is entered the space to be filtered 210 of Coalescence filter core structure by air inlet pipeline 3, by described first
Inner frame 211 sequentially enters pre-filter layer 212, acquisition layer 213.The pre-filter layer 212 can consolidate the major part in gas
Body impurity intercepts, and the acquisition layer 213 can intercept large-sized drop in gas.The liquid captured by acquisition layer 213
It drips and is arranged under the induced effect of gravity and gas by the inside that the clearance space enters on 211 bottom of the first inner frame
Liquid stream road 231, then be discharged after second drain line 6 convergence.
Gas after pre-filtering enters subsequent filtering link by the clearance space.In described second
Skeleton 201, coalescing layer 203, drain layers 204, outer skeleton 202 are then discharged out to the outside of the Coalescence filter core structure.It is described poly-
Knot layer 203 is provided with multiple lyophoby channel 203a, and multiple lyophoby channels 203 are arranged at intervals in the coalescing layer 203, often
There is 30~60 ° of tilt angle between a lyophoby channel 203a and horizontal plane.The drain layers 204 are provided with multiple parents
Liquid channel 204a, multiple lyophily channel 204a are arranged at intervals in the drain layers 204, each lyophily channel 204a
It is perpendicular with horizontal direction.
The fine droplet carried in gas is captured, then along institute when by coalescing layer 203 by the fiber of coalescing layer 203
The tilt angle for stating lyophoby channel 203a is quickly arranged to drain layers 204.Into liquid a part in drain layers 204 with air-flow
Induced effect, the outside of filter core 2 is expelled to by the through-hole of outer skeleton 202 along the outer surface of drain layers 204, another drop is then
It is reserved downwards in the inside of drain layers 204 along lyophily channel 204a, filter core 2 is then discharged under airflow function.By drain layers
The liquid of 204 discharges enters drainage space 200, is discharged after then being collected by first drain line 4.By the gas of filtering
It is discharged from the gas exhaust piping 5 on filter device, into subsequent production and application.
When carrying a large amount of, big partial size drop and solid particle in gas, once air inlet pipeline 3 and gas exhaust piping
When differential pressure pickup on 5 shows that the pressure drop of Coalescence filter core structure increases, then show acquisition layer 213 or/and pre-filter layer 212
Severe blockage only dismantles the first inner frame at this time on the basis of retaining the second inner frame 201, filter core 2 and outer skeleton 202
Pre-filter layer 212 and acquisition layer 213 on 211 are simultaneously replaced.
Coalescence filter core structure provided by the present application and filter device have the advantage that
(1) Coalescence filter core structure provided by the present application is additionally arranged pre-filtering element, can filter out partial size in gas in advance
Biggish impurity to cope with the variation of impurity concentration in gas, and the impurity of capture is discharged in time, so that entering coalescence filter
The gas dust-laden of core, concentration containing liquid reduce, and improve the service life of filter core；
(2) Coalescence filter core structure provided by the present application can prevent coalescing layer by having additional lyophoby channel in coalescing layer
The formation of interior sheet liquid regions, reduces the formation of liquid film, reduces the content liquid inside filter core, pressure drop is delayed to increase；
(3) Coalescence filter core structure provided by the present application can destroy coalescing layer by having additional lyophily channel in drain layers
Locate the liquid film formed, promotes liquid to quickly enter drain layers, to improve the filter effect of filter core；
(4) pre-filtering element provided by the present application is easy to disassemble, is easily changed, and can cope with liquid or solid impurity in gas
The higher operating condition of concentration, when filter core pressure drop occurs increasing too fast situation, it is only necessary to the filter material on the first inner frame is replaced,
So as to avoid the problem that filter element replacing is frequent, operating cost is reduced.
It should be noted that term " first ", " second " etc. are used for description purposes only and distinguish in the description of the present application
Similar object between the two and is not present sequencing, can not be interpreted as indication or suggestion relative importance.In addition, In
In the description of the present application, unless otherwise indicated, the meaning of " plurality " is two or more.
All the embodiments in this specification are described in a progressive manner, and identical part is mutual between each embodiment
It mutually participates in, each embodiment focuses on the differences from other embodiments.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be aobvious and easy for a person skilled in the art
See.For comprehensive purpose, all articles and with reference to the disclosure including patent application and bulletin all by reference to being incorporated in this
Wen Zhong.
Claims (10)
1. a kind of Coalescence filter core structure characterized by comprising
First inner frame, first inner frame have opposite top and bottom end, are provided at least one on the bottom end
Portion's drain runner and air inlet, first inner frame, which encloses, to be set to form space to be filtered, the space to be filtered and the air inlet
Mouth connection；
It is sequentially sleeved at outside first inner frame: the liquid collecting for the pre-filter layer of impurity screening and for capturing drop
Layer；
It is empty to form gap for the second inner frame being set in outside the acquisition layer between the acquisition layer and second inner frame
Between, the clearance space is connected to the internal drain runner；
It is empty to form coalescence for the outer skeleton being set in outside second inner frame between second inner frame and the outer skeleton
Between；
Filter core in the coalescence space is set；
The upper end cover on the outer skeleton top is set, and the upper end cover is at least by the plug at end part in the space to be filtered；
The lower cover of the outer skeleton bottom end is set, and the lower cover is provided with for being inserted into opening for first inner frame
Mouthful, the bottom end of the lower cover and first inner frame is detachably connected.
2. Coalescence filter core structure as described in claim 1, which is characterized in that the extending direction and water of the internal drain runner
There is tilt angle, the internal drain runner is connected to the space to be filtered between plane.
3. Coalescence filter core structure as described in claim 1, which is characterized in that the filter core includes: coalescing layer and drain layers, institute
It states coalescing layer and the drain layers is sequentially sleeved in the coalescence space, the aperture of the coalescing layer is less than the drain layers
Aperture, the coalescing layer are provided with the lyophoby channel of lyophoby characteristic, and the drain layers are provided with the lyophily channel of lyophily characteristic；
Drop in gas can migrate along the lyophoby channel to the drain layers, in air-flow after coalescing layer aggregation
Driving the partial drop of lower migration to the drain layers can be expelled to outside filter core through the hole of the drain layers, partial drop energy
It is flowed along the lyophily channel.
4. Coalescence filter core structure as claimed in claim 3, which is characterized in that the lyophoby channel have it is multiple, it is multiple described
The setting of lyophoby channel spacing has pre-determined tilt angle, takes in gas between the extending direction and horizontal plane in the lyophoby channel
The drop of band can migrate along the pre-determined tilt angle to the drain layers.
5. Coalescence filter core structure as claimed in claim 4, which is characterized in that the pre-determined tilt angle is 30 °~60 °.
6. Coalescence filter core structure as claimed in claim 3, which is characterized in that the lyophily channel have it is multiple, it is multiple described
The setting of lyophily channel spacing, the extending direction and horizontal direction in the lyophily channel are perpendicular, migration to the portion of the drain layers
Liquid separation drop can flow downward through the lyophily channel.
7. Coalescence filter core structure as claimed in claim 6, which is characterized in that the lyophily channel is specially nano fibrous membrane,
The nano fibrous membrane, which is compounded in the drain layers, forms the lyophily channel, and the diameter of the nano fibrous membrane is 0.1~
0.5μm。
8. Coalescence filter core structure as described in claim 1, which is characterized in that the upper end cover is provided with and first in-seam
The groove that the top of frame matches, the lower cover are threadedly coupled with the bottom end of first inner frame.
9. Coalescence filter core structure as described in claim 1, which is characterized in that the fibre diameter of the pre-filter layer is 2~15 μ
M, the fibre diameter of the acquisition layer are 15~25 μm.
10. a kind of filter device, the shell with hollow cavity, the shell are provided with gas exhaust piping and air inlet pipeline, special
Sign is, comprising:
It is arranged in the intracorporal Coalescence filter core structure of the hollow cavity, forms drain between the Coalescence filter core structure and the shell
Space；
First drain line, first Drainage pipe are connected to the drainage space；
Wherein, the Coalescence filter core structure includes: the first inner frame, and first inner frame has opposite top and bottom end,
At least one internal drain runner and air inlet are provided on the bottom end, first inner frame, which encloses, to be set to form sky to be filtered
Between, the space to be filtered is connected to the air inlet, and the air inlet is connected to the air inlet pipeline；It is sequentially sleeved at described
Outside first inner frame: the acquisition layer for the pre-filter layer of impurity screening and for capturing drop；It is set in the liquid collecting
The second external inner frame of layer, forms clearance space between the acquisition layer and second inner frame, the clearance space and
The internal drain runner connection；The outer skeleton being set in outside second inner frame, second inner frame and described outer
Coalescence space is formed between skeleton；Filter core in the coalescence space is set；The upper end cover on the outer skeleton top is set,
The upper end cover is at least by the plug at end part in the space to be filtered；The lower cover of the outer skeleton bottom end is set, under described
End cap is provided with the opening for being inserted into first inner frame, and the bottom end of the lower cover and first inner frame is detachable
Connection；
Second drain line, second drain line are connected to the internal drain runner；
For detecting the pressure sensing cell of the pressure parameter of the Coalescence filter core structure, the pressure sensing cell is arranged in institute
It states on gas exhaust piping and the air inlet pipeline.
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| CN109847490A (en) * | 2019-03-20 | 2019-06-07 | 中国石油大学(北京) | A kind of rigidity gas-liquid Coalescence filter core, preparation method and device |
| CN112957834A (en) * | 2021-03-11 | 2021-06-15 | 中国石油大学(北京) | Switching two-stage coalescence-separation system |
| CN112973359A (en) * | 2021-03-18 | 2021-06-18 | 中国石油大学(北京) | Sectional liquid discharge type combined coalescent filter element |
| CN112973295A (en) * | 2021-03-18 | 2021-06-18 | 中国石油大学(北京) | Coalescence filter core with flowing back function |
| CN114515488A (en) * | 2022-02-22 | 2022-05-20 | 国家管网集团川气东送天然气管道有限公司 | Coalescence filter |
| CN115212668A (en) * | 2022-02-22 | 2022-10-21 | 国家管网集团川气东送天然气管道有限公司 | Coalescence filter core and coalescence filter |
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| CN109847490A (en) * | 2019-03-20 | 2019-06-07 | 中国石油大学(北京) | A kind of rigidity gas-liquid Coalescence filter core, preparation method and device |
| CN112957834A (en) * | 2021-03-11 | 2021-06-15 | 中国石油大学(北京) | Switching two-stage coalescence-separation system |
| CN112957834B (en) * | 2021-03-11 | 2021-11-19 | 中国石油大学(北京) | Switching two-stage coalescence-separation system |
| WO2022188492A1 (en) * | 2021-03-11 | 2022-09-15 | 中国石油大学(北京) | Switching-type two-stage coalescence separation system |
| CN112973359A (en) * | 2021-03-18 | 2021-06-18 | 中国石油大学(北京) | Sectional liquid discharge type combined coalescent filter element |
| CN112973295A (en) * | 2021-03-18 | 2021-06-18 | 中国石油大学(北京) | Coalescence filter core with flowing back function |
| CN112973295B (en) * | 2021-03-18 | 2022-03-29 | 中国石油大学(北京) | Coalescence filter core with flowing back function |
| WO2022193445A1 (en) * | 2021-03-18 | 2022-09-22 | 中国石油大学(北京) | Coalescence filter element having liquid discharging function |
| CN114515488A (en) * | 2022-02-22 | 2022-05-20 | 国家管网集团川气东送天然气管道有限公司 | Coalescence filter |
| CN115212668A (en) * | 2022-02-22 | 2022-10-21 | 国家管网集团川气东送天然气管道有限公司 | Coalescence filter core and coalescence filter |
| CN115212668B (en) * | 2022-02-22 | 2023-11-07 | 国家管网集团川气东送天然气管道有限公司 | Coalescing filter element and coalescing filter |
| CN114515488B (en) * | 2022-02-22 | 2023-11-10 | 国家管网集团川气东送天然气管道有限公司 | Coalescing filter |
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