CN107485928A - For double pouch-type blade-type separators from gas separation liquid - Google Patents

For double pouch-type blade-type separators from gas separation liquid Download PDF

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Publication number
CN107485928A
CN107485928A CN201710744452.4A CN201710744452A CN107485928A CN 107485928 A CN107485928 A CN 107485928A CN 201710744452 A CN201710744452 A CN 201710744452A CN 107485928 A CN107485928 A CN 107485928A
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CN
China
Prior art keywords
type
pouch
fluid collection
blade
collecting bag
Prior art date
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Pending
Application number
CN201710744452.4A
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Chinese (zh)
Inventor
达尼·法达
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Poole (china) Environmental Protection Separation Equipment Manufacturing Co Ltd
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Poole (china) Environmental Protection Separation Equipment Manufacturing Co Ltd
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Application filed by Poole (china) Environmental Protection Separation Equipment Manufacturing Co Ltd filed Critical Poole (china) Environmental Protection Separation Equipment Manufacturing Co Ltd
Priority to CN201710744452.4A priority Critical patent/CN107485928A/en
Publication of CN107485928A publication Critical patent/CN107485928A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

The invention discloses a kind of double pouch-type blade-type separators being used for from gas separation liquid.The double pouch-type blade-type separators being used for from gas separation liquid of the present invention include:The multiple z shapes passages limited between multiple plates, and first fluid collection pouch and second liquid collecting bag, first fluid collection pouch and second liquid collecting bag are arranged on the first side wall between crest and trough adjacent in the z shapes passage, first fluid collection pouch is arranged on the downstream of airflow direction relative to second liquid collecting bag, the co-portal of the first fluid collection pouch and second liquid collecting bag is provided between the crest and the trough, wherein, at least one in the edge at the co-portal of edge and second liquid collecting bag of first fluid collection pouch at the co-portal is arc.Double pouch-type blade-type separators of the present invention can provide the improved production capacity and performance that liquid is removed from gas.

Description

For double pouch-type blade-type separators from gas separation liquid
The application is the applying date on June 25th, 2014, Application No. 201410294639.5, entitled " is used for From gas separation liquid double pouch-type blade-type separators " original bill application divisional application.
Technical field
The present invention generally relates to the blade-type separator that liquid is removed from gas, more particularly, to double pouch-type leaves Chip separator.
Background technology
Since the 1930s, blade-type separator just be used to isolate liquid from gas in commercial Application Body.This kind of blade-type separator is a kind of multilayer platy structure.Gas is forced to do z zigzag motions between plate and plate so that Drop in gas is vulnerable to inertia force effect and is attached to blade surface, it is achieved thereby that gas-liquid separation.
Another type of gas-liquid separator is ripple plate separator.Initial ripple plate design, also referred to as without pouch-type blade Formula separator, it is to start manufacture in later stage the 1920s.Ripple plate separator is made up of sheet metal.With there is pouch-type blade Formula separator is compared, and the disposal ability of this ripple plate separator is weaker, and it needs larger area to handle the gas of same flow velocity Liquid mixture.
The use of single pouch-type blade-type separator starts from the 1930s.These blades can be by extruding or passing through Pultrusion molding process, to be molded and welding manufacture.Single pouch-type blade-type separator is relative to ripple plate separator, although disposal ability Increase, but still reach to the level less than double pouch-type blade-type separators.
The gas path width of single pouch-type blade-type separator is inconsistent.Specifically, as shown in figure 1, single pouch-type vane type Separator has blade body 11 and single bag 12.Arrow represents airflow direction.Gas enters gas path by wider entrance.Gas Body path narrows at single bag 12, and then the region between two neighboring single bag 12 broadens.This gas path width It is inconsistent cause gas to be shunk at single bag 12, and between two neighboring single bag 12 region expansion, first compress and expand afterwards Process further cause the decline of gas pressure.Importantly, compression and expansion cause the shearing force to drop, and therefore It can cause and be broken in the high velocity air in blade.
Double pouch-type blade-type separators start to be applied the 1970s.This blade-type separator is usually used Shaping and welding manufacture.Double pouch-type blade-type separators increase pressure drop, improve place relative to single pouch-type blade-type separator Reason ability.
Figure 2 illustrates double pouch-type blade-type separators.Double pouch-type blade-type separators include blade body 21 and led to Cross double bags of first bag 22 and second bag 23 formation.Compared with single pouch-type blade-type separator, double pouch-type blade-type separators Pressure drop is low, because the width of the gas path in the blade-type separator is homogeneous.Specifically, when gas enters blade-type separator When, gas compression enters passage.The width of gas path is consistent on the length direction of blade-type separator.Therefore, when When in gas flow channel, without the compression or expansion of gas.
Double pouch-type blade-type separators can be efficiently separated compared with single pouch-type blade-type separator with higher speed Liquid and there is the less breakup of drop.
For the liquid behavior being set forth in double pouch-type blade-type separators, showing for its section is shown in Fig. 3 a and 3b It is intended to.Droplet deposition forms the film that will be separated from blade in blade surface.If in double pouch-type blade-type separators Gas velocity is fast, and this tunic will be taken away by gas, and therefore can not be separated with gas (Fig. 3 a).However, if gas velocity exists Within the scope of the disposal ability of blade, this tunic will be rolled and flowed into bag (Fig. 3 b).
The advanced piece-rate system used now uses double pouch-type blade-type separators.
The high-performance blade with multiple double bags also known in the art in each wavelength of blade is (for example, United States Patent (USP) US5104431).These blades can use shaping and welding or be manufactured by extruding.As pointed by their name, High-performance blade has higher disposal ability compared with double pouch-type blade-type separators.The shortcomings that this blade is brought is tool There is deeper pitch, thus often used by series multistage, is only used in special applications.
United States Patent (USP) US6810835B2 (calling 835 patents in the following text) discloses double pouch-type blade-type separators.The vane type separates Device includes multiple flat deckle boards (102 in 835 patents) being set parallel to each other to limit multiple z shapes paths between flat deckle board (101 in 835 patents).Double bags (120,122 in 835 patents) be by onboard weld blade (in 835 patents 104, 106th, 108,110,112 and 114) formed.However, the patent has the linear main part (102) for being easy to vibration.Its Intensity is provided dependent on the bag of welding.Moreover, on 835 patents, flow through the gas of separator there is serious compression and Expansion.This compression and expansion cause the shearing to drop, and cause broken.Moreover, it will cause higher pressure drop.
The content of the invention
Goal of the invention:Present invention seek to address that the above mentioned problem of prior art, and propose improved double pouch-type vane types Separator removes the disposal ability and performance of liquid to improve from gas.Especially, the present invention is intended to provide with smaller liquid Drip leaf percentage of damage, hard for double pouch-type with the collecting bag being attached of gas (or steam)/oil (or liquid) separation Chip separator.
Technical scheme:According to the present invention, there is provided a kind of double pouch-type blade-type separators being used for from gas separation liquid, Including:
The multiple z shapes passages limited between multiple plates, and
First fluid collection pouch and second liquid collecting bag, first fluid collection pouch and the second liquid collecting bag It is arranged on the first side wall between the adjacent crest and trough of the z shapes passage, first fluid collection pouch is arranged on The downstream of the airflow direction of the second liquid collecting bag, first liquid is provided between the adjacent crest and trough The co-portal of body collecting bag and the second liquid collecting bag,
Wherein, edge of first fluid collection pouch at the co-portal, and the second liquid collecting bag Edge at the co-portal, at least one in the two edges is arc.
Preferably, edge of first fluid collection pouch at the co-portal is arc.It is it is highly preferred that described The edge of first fluid collection pouch and the second liquid collecting bag at the co-portal is all arc.
Preferably, the multiple z shapes passage is parallel to each other.It is highly preferred that the multiple z shapes passage be by it is multiple each other What the z shapes plate be arrangeding in parallel limited.
Preferably, first fluid collection pouch be by fold the plate shape into so that first liquid is collected Edge of the bag at the co-portal is arc.Preferably, the Part I of the folding part of the plate is parallel to the z shapes The first side wall of passage, and the folding part of the plate Part II parallel to the z shapes passage second sidewall, described Two side walls are adjacent with the first side wall, and the upstream of the airflow direction positioned at the first side wall.
Preferably, the second liquid collecting bag is included by first and dimerous fin, and the first of the fin Portion is fixed to positioned at the adjacent with the first side wall of the z shapes passage and is located at the upper of the airflow direction of the first side wall In the second sidewall of trip, wherein second of the fin first extension from the fin.It is highly preferred that the fin Second parallel to the first side wall, and/or second of the fin is folded so that the second liquid collecting bag exists Edge at the co-portal is arc.
Preferably, the depth of double pouch-type blade-type separators is in the scope of 3-12 inches, the blade-type separator Depth be the passage between solstics of the solstics of the airflow direction upper left side to right side distance.In the present invention, As it is shown in the figures, the left side on airflow direction refers to the approaching side of the air-flow of blade-type separator, the right side on airflow direction What side referred to the air-flow of blade-type separator leaves side.
Above-mentioned preferred feature can be used alone and/or be used in any combination.
Present invention also offers a kind of double pouch-type blade-type separators being used for from gas separation liquid, the vane type point Include from device:
The multiple z shapes passages limited between multiple plates, and
First fluid collection pouch and second liquid collecting bag, first fluid collection pouch and the second liquid collecting bag It is arranged on the first side wall between crest and trough adjacent in the z shapes passage, first fluid collection pouch is arranged on The downstream of the airflow direction of the second liquid collecting bag, it is provided between the adjacent crest and trough described The co-portal of first fluid collection pouch and the second liquid collecting bag,
Wherein, first fluid collection pouch be by fold the plate shape into first fluid collection pouch exist Edge at the co-portal is arc, and the second liquid collecting bag is by the way that first of fin is welded to Limited in the second sidewall of the z shapes passage, the second sidewall is located at the upstream of the airflow direction of the first side wall And it is adjacent with the first side wall, wherein second of the fin first extension from the fin.
Preferably, the multiple z shapes passage is parallel to each other.It is highly preferred that the multiple z shapes passage be by it is multiple each other What the z shapes plate be arrangeding in parallel limited.
Preferably, the Part I of the folding part of the plate is parallel to the first side wall of the z shapes passage, and the plate Folding part Part II parallel to the second sidewall.
Preferably, second of the fin is parallel to the first side wall.
Preferably, second of the fin is to fold so that the second liquid collecting bag is in the co-portal The edge at place is arc.
Preferably, the depth of double pouch-type blade-type separators is in the scope of 3-12 inches, the blade-type separator Depth be the passage between solstics of the solstics of the airflow direction upper left side to right side distance.In the application, As it is shown in the figures, the left side on airflow direction refers to the approaching side of the air-flow of blade-type separator, the right side on airflow direction What side referred to the air-flow of blade-type separator leaves side.
Above-mentioned preferred feature can be used alone and/or be used in any combination.
The present invention is available to remove liquid from gas in numerous applications, for example, using including but is not limited to:
In nuclear power station water is removed from steam;
In geothermal applications water is removed from steam;
In boiler applications water is removed from steam;
In gas transmission application oil is removed from gas;
In chemical devices heavy hydrocarbon is removed from gas;
In petrochemical equipment hydrocarbon is removed from gas;
LNG in liquefied natural gas application;
Liquefied ammonia is removed from synthesis gas;
Sulfur recovery;
In power generation applications condensate is removed from gas;
In gas manufacture condensate is removed from gas;
In underground natural gas storage tank condensate is removed from gas;
In ventilating system rainwater is removed from air;Etc..
Brief description of the drawings
By the detailed description of combination accompanying drawing hereafter, the above and other purpose of the invention, feature and advantage It will be apparent from, wherein:
Fig. 1 is the schematic diagram of single pouch-type blade-type separator of prior art;
Fig. 2 is the schematic diagram of double pouch-type blade-type separators of prior art;
Fig. 3 a and Fig. 3 b are the schematic diagrames of the liquid behavior for being set forth in double pouch-type blade-type separators;
Fig. 4 is the schematic diagram according to the first embodiment of double pouch-type blade-type separators of the present invention;
Fig. 5 is the schematic diagram according to the second embodiment of double pouch-type blade-type separators of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate The present invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are each to the present invention's The modification of kind equivalents falls within the claim limited range appended by the application.
According to the double pouch-type blade-type separators being used for from gas separation liquid of the present invention, including:
The multiple z shapes passages limited between multiple plates, and
First fluid collection pouch and second liquid collecting bag, first fluid collection pouch and the second liquid collecting bag It is arranged on the first side wall between the adjacent crest and trough of the z shapes passage, first fluid collection pouch is arranged on The downstream of the airflow direction of the second liquid collecting bag, described first is provided between the adjacent crest and trough The co-portal of fluid collection pouch and the second liquid collecting bag,
Wherein, edge of first fluid collection pouch at the co-portal, and the second liquid collecting bag Edge at the co-portal, at least one in the two edges is arc.
In advantageous embodiment, edge of first fluid collection pouch at the co-portal is arc. It is highly preferred that the edge of first fluid collection pouch and the second liquid collecting bag at the co-portal is all arc 's.
The inventors found that the sharp edge of the entrance of collecting bag will cause it is undesirable in piece-rate system Pressure drop.In the present invention, edge and second liquid collecting bag of first fluid collection pouch at co-portal are at co-portal Edge in it is at least one be arc.Therefore, sharp edges are eliminated.
The plate can be z shape plates.As long as meet edge and second liquid of first fluid collection pouch at co-portal At least one in the edge at co-portal of collecting bag is arc, and plate can also be such as that as shown in 835 patents Sample is flat board.In the preferred embodiment of the present invention, the multiple z shapes passage is by multiple z being set parallel to each other What shape plate limited.
First fluid collection pouch can by fold the plate shape into so that first fluid collection pouch enters jointly described Edge at mouthful is arc.In this case, the first fluid collection pouch is the phase of folding part by the plate and plate What adjacent unfolded portion was formed.Preferably, first side of the Part I of the folding part of the plate parallel to the z shapes passage Wall, the folding of the plate extended between the Part I of the folding part of the plate and the adjacent unfolded portion of the plate For the Part II in portion parallel to the second sidewall of the z shapes passage, the second sidewall is adjacent with the first side wall, and is located at The upstream of the airflow direction of the first side wall.
Preferably, the second liquid collecting bag can by by fin be fixed to the z shapes passage with first side Wall is adjacent and is formed in the second sidewall of the upstream of the airflow direction of the first side wall, this wherein, the of fin One is fixed in the second sidewall, such as by being welded and fixed, second of the fin first from the fin Extension.It is highly preferred that second of the fin parallel to the first side wall, and/or second of the fin is folded, So that edge of the second liquid collecting bag at the co-portal is arc.
The blade-type separator of prior art, for example, the blade-type separator of 835 patents, is carried dependent on the bag of welding For intensity, it is easy to vibrate.However, in the present invention, double pouch-type blade-type separators have by plate shape into adamantine master Body, it includes the first fluid collection pouch formed by folding part, and the folding part is the part of the plate.Therefore, according to The present invention blade-type separator be not easy to vibration and it is easily fabricated.
Preferably, the depth of blade-type separator 3-12 inches scope, the depth of the blade-type separator be Distance of the solstics of the airflow direction upper left side to the passage between the solstics on right side.The vane type separation of bigger depth The advantages of device is that it will handle more liquid, is that it will provide less pressure the advantages of the blade-type separator of smaller depth Drop.According to the present invention, the preferable scope of depth is 3-12 inches.
Present invention also offers a kind of double pouch-type blade-type separators being used for from gas separation liquid, the vane type point Include from device:
The multiple z shapes passages limited between multiple plates, and
First fluid collection pouch and second liquid collecting bag, first fluid collection pouch and the second liquid collecting bag It is arranged on the first side wall between crest and trough adjacent in the z shapes passage, first fluid collection pouch is arranged on The downstream of the airflow direction of the second liquid collecting bag, described first is provided between the adjacent crest and trough The co-portal of fluid collection pouch and the second liquid collecting bag,
Wherein, first fluid collection pouch be by fold the plate shape into first fluid collection pouch exist Edge at the co-portal is arc, and the second liquid collecting bag is by the way that first of fin is welded to In second sidewall and limit, the second sidewall be located at the upstream of the airflow direction of the first side wall and with first side Wall is adjacent, wherein second of the fin first extension from the fin.
Double pouch-type blade-type separators have two relative fluid collection pouch, and one of collecting bag is to pass through folded sheet Manufactured, another collecting bag is formed by the other part (that is, fin) being welded on plate.In blade-type separator Never so done before in technical field.Have no precedent in same blade-type separator comprising the collecting bag and welding folded Collecting bag blade-type separator.
Moreover, as described above, double pouch-type blade-type separators have by plate shape into adamantine main body, including The first fluid collection pouch formed by folding part, and the folding part is a part of the plate.Therefore, according to the present invention Blade-type separator be not easy to vibrate, it is and easily fabricated.
Moreover, the first fluid collection pouch is formed by folded sheet, therefore, the first fluid collection pouch in co-portal The edge at place is arc, therefore, eliminates sharp edge, the breakup of drop is reduced.
In a preferred embodiment, second of the fin is folded so that the second liquid collecting bag is in institute It is also arc to state the edge at co-portal, further to reduce the breakup of drop and increase the intensity of blade-type separator.
Preferably, the multiple z shapes passage is limited by multiple z shapes plates being set parallel to each other.
Preferably, the Part I of the folding part of the plate is parallel to the first side wall of the z shapes passage, and the plate Folding part Part II parallel to the second sidewall.
Preferably, second of the fin is parallel to the first side wall.
Preferably, the depth of blade-type separator 3-12 inches scope, the depth of the blade-type separator be Distance of the solstics of the airflow direction upper left side to the passage between the solstics on right side.
Embodiment 1:Referring to Fig. 4, pair first embodiment of pouch-type blade-type separators is shown.For being separated from gas Double pouch-type blade-type separators of liquid include:The multiple z shapes passages being limited between the multiple z shapes plates 41 being set parallel to each other 44th, the first fluid collection pouch 42 and second liquid collecting bag 43.The direction of arrow marked in figure represents airflow direction.In z shapes In passage 44, second sidewall 46 is in the upstream of the first side wall 45 and adjacent with the first side wall 45.First fluid collection pouch 42 and Two fluid collection pouch 43 are arranged on the first side wall 45 between the crest and adjacent trough of z shape passages, and the first liquid is received Collection bag 42 is arranged on the downstream of airflow direction, the first fluid collection pouch 42 and second liquid relative to second liquid collecting bag 43 The co-portal 47 of collecting bag 43 is arranged between the crest and trough.First fluid collection pouch 42 and second liquid collecting bag 43 form double bags.
First fluid collection pouch 42 is formed by folding z shapes plate 41 so that the first fluid collection pouch 42 is entering jointly Edge at mouth 47 is arc.
The folding part of z shapes plate 41 is made up of Part I 42a and Part II 42b.The folding part and first of z shapes plate 41 Side wall 45 forms the first fluid collection pouch 42.The Part I 42a of the folding part of z shapes plate 41 is parallel to the first side wall 45.Z shape plates The Part II 42b of 41 folding part extends between Part I 42a and the first side wall 45.Part II 42b parallel to Second sidewall 46 positioned at the upstream of the first side wall 45.
Second liquid collecting bag 43 is formed by the way that first 43a of fin is welded in second sidewall 46, wherein Second 43b of fin extends from first 43a of fin.Second 43b of fin is parallel to the first side wall 45.The of fin The Part I 42a of the folding part of two 43b and plate is point-blank.
Embodiment 2:Fig. 5 show based on figure 4 illustrates embodiment improvement, wherein, second 43b of fin It is folded so that edge of the second liquid collecting bag 43 at co-portal 47 is arc.The other parts of the present embodiment with Embodiment 1 is identical.

Claims (16)

1. a kind of double pouch-type blade-type separators being used for from gas separation liquid, the blade-type separator include:
The passage limited between multiple plates, and
First fluid collection pouch and second liquid collecting bag, first fluid collection pouch and the second liquid collecting bag are set In the side wall of the passage, first fluid collection pouch is arranged on the downstream of the airflow direction of the second liquid collecting bag Side, and
For first fluid collection pouch and the co-portal of the second liquid collecting bag,
Wherein, edge and the second liquid collecting bag of first fluid collection pouch at the co-portal are in described common With at least one in the edge of porch be by the plate shape folded completely into so that first fluid collection pouch is in described Described in the edge of edge and the second liquid collecting bag at co-portal at the co-portal at least one be Arc.
2. double pouch-type blade-type separators according to claim 1, wherein, the multiple plate includes flat plate.
3. double pouch-type blade-type separators according to claim 1, wherein, the multiple plate includes z shape plates.
4. double pouch-type blade-type separators according to claim 1, wherein, first fluid collection pouch is described common The edge of porch is arc.
5. double pouch-type blade-type separators according to claim 1, wherein, first fluid collection pouch and described second Edge of the fluid collection pouch at the co-portal is all arc.
6. double pouch-type blade-type separators according to claim 1, wherein, first fluid collection pouch is to pass through folding The plate shape into so that the edge of first fluid collection pouch is arc.
7. double pouch-type blade-type separators according to claim 6, wherein, the Part I of the folding part of the plate be by The plate shape folded completely into and parallel to the side wall, and the Part II of the folding part of the plate with it is described The Part I of the folding part of plate is at an angle.
8. double pouch-type blade-type separators according to any one of claim 1-7, wherein, the second liquid collecting bag Be by will first of fin be fixed in the side wall of the multiple plate and limit, wherein, second of the fin from institute State fin first is extended with an angle.
9. double pouch-type blade-type separators according to claim 8, wherein, second of the fin is fully folded, So that edge of the second liquid collecting bag at the co-portal is arc.
10. double pouch-type blade-type separators according to claim 1, wherein, the depth of double pouch-type blade-type separators Degree scope is 3-12 inches, and the depth of double pouch-type blade-type separators is in the farthest of the airflow direction upper left side Distance of the point to the passage between the solstics on right side.
11. a kind of double pouch-type blade-type separators being used for from gas separation liquid, the blade-type separator include:
The passage limited between multiple plates, and
First fluid collection pouch and second liquid collecting bag, first fluid collection pouch and the second liquid collecting bag are set In the side-walls of the passage, first fluid collection pouch is arranged on the downstream of the airflow direction of the second liquid collecting bag Side, and
For first fluid collection pouch and the co-portal of the second liquid collecting bag,
Wherein, the edge of the restriction of first fluid collection pouch and the second liquid collecting bag co-portal is arc 's.
12. double pouch-type blade-type separators according to claim 11, wherein, the multiple plate includes flat plate.
13. double pouch-type blade-type separators according to claim 11, wherein, the multiple plate includes z shape plates.
14. double pouch-type blade-type separators according to claim 11, wherein, first fluid collection pouch is to pass through folding Fold the plate shape into so that the edge of first fluid collection pouch is arc.
15. double pouch-type blade-type separators according to any one of claim 11 to 14, wherein, the second liquid is received Collection bag is limited by the way that first of fin is fixed in the side wall of the multiple plate, wherein, second of the fin Extended from first of the fin with an angle.
16. double pouch-type blade-type separators according to claim 11, wherein, the depth of double pouch-type blade-type separators Degree scope is 3-12 inches, and the depth of double pouch-type blade-type separators is in the farthest of the airflow direction upper left side Distance of the point to the passage between the solstics on right side.
CN201710744452.4A 2014-06-25 2014-06-25 For double pouch-type blade-type separators from gas separation liquid Pending CN107485928A (en)

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CN113289415A (en) * 2021-05-21 2021-08-24 海盐得胜化工设备有限公司 Gas-liquid separator blade assembly

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CN105327552A (en) 2016-02-17
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