CN207221636U - A kind of novel double-helix mass transfer absorption plant - Google Patents
A kind of novel double-helix mass transfer absorption plant Download PDFInfo
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- CN207221636U CN207221636U CN201721002959.4U CN201721002959U CN207221636U CN 207221636 U CN207221636 U CN 207221636U CN 201721002959 U CN201721002959 U CN 201721002959U CN 207221636 U CN207221636 U CN 207221636U
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Abstract
A kind of the problem of novel double-helix mass transfer absorption plant, solution is existing in the prior art complicated, and operational load and operating flexibility are small, and mass-transfer efficiency is low, resistance is big, and anti-blocking performance is poor.Including outside cylinder, it is characterised in that：Outside inner barrel sets inside cartridge, and distribution blind plate is set in the middle part of inside cartridge；Between inside cartridge and distribution blind plate, the first helical blade set being made of some pieces of the first blades is set；Between outside cylinder and inside cartridge, the second helical blade set being made of some pieces of the second blades is set；Outside cylinder is connected by the support ring flat-plate of lower part with tower body inner wall.It is reasonable that it is designed, compact-sized, and the thin liquid layer of blade surface forms the effect of rotation and centrifugation with the flue gas stream risen, and live load is big, and disposal ability is strong, and operating flexibility is high, anti-blocking, anti-scaling property is good, and air resistance is small, and desulfuration efficiency is high.
Description
Technical field
The utility model belongs to flue-gas purification treatment device technical field, and in particular to a kind of live load is big, operates bullet
Property it is high, anti-blocking, anti-scaling property is good, air resistance is small, the high novel double-helix mass transfer absorption plant of desulfuration efficiency.
Background technology
Power plant, power plant for self-supply, Industrial Stoves, the tail gas desulfurization device of heating power heating, mainly by absorption tower, ash settling basin, plus
Material pond and mud pit composition；Spray assemblies, water fog removing device, flue gas are generally included inside absorption tower and divides gas mass transfer apparatus etc..Come
Dust-laden, sulfur-containing smoke gas from boiler enter in tower from absorb the bottom of the tower, the liquid for then rising and entering on each plate and by tower top
Body contacts, and completes the tasks such as dedusting, desulfurization；Afterwards, clean flue gas enters chimney via top of tower, and air is discharged into by chimney top
In.The liquid for carrying volume of smoke and desulfurization slag then discharges inflow ash settling basin from absorb the bottom of the tower, and flue dust and desulfurization slag sink to pond
Bottom, is periodically pulled out with machinery or is got bottom underflow with underflow pump；The clear liquid on top is overflowed in feed tank, and from slurry
The desulphurizer mixing in pond, after reacting, be re-fed at the top of absorption tower and recycle.
Traditional adsorption tower smoke divides gas mass transfer apparatus to include filler device, perforated plate construction, and sieve-plate structure etc., its
Complicated, processing technology is cumbersome, and operational load and operating flexibility are small, and mass-transfer efficiency is low, resistance is big, and anti-blocking performance is poor, right
The integral pressure drop of tail gas desulfurization device influences very big.Further, since need to configure the wind turbine of higher-wattage so that tail gas desulfurization
The energy loss of device is serious.Therefore it is necessary to divide gas mass transfer apparatus to be improved the flue gas of the prior art.
Utility model content
The utility model is aiming at the above problem, there is provided a kind of live load is big, and operating flexibility is high, anti-blocking, antiscale
Can be good, air resistance is small, the high novel double-helix mass transfer absorption plant of desulfuration efficiency.
Technical solution is used by the utility model：The novel double-helix mass transfer absorption plant includes outside cylinder, its
It is characterized in that：The lower part of the outside cylinder is provided with support ring flat-plate, and outside cylinder is internally provided with inside cartridge, inboard cylinder
The axis of body and the axis of outside cylinder coincide, and the distribution blind plate of oblate column is provided with the middle part of inside cartridge；Outer side neck
Body is enclosed by outer side neck plate and formed, and it is second spiral to be provided with that several are in tilted layout for the side that outer side neck plate is located at inner barrel
Position sipes；Inside cartridge is enclosed by inboard cylinder plate and formed, and the side that inboard cylinder plate is located at outside cylinder is provided with several and inclines
The the second spiral positioning narrow slot tiltedly arranged, the quantity and incline direction of the second spiral positioning narrow slot, with the second spiral positioning sipes
Quantity and incline direction it is corresponding；The side that inboard cylinder plate is located at inner barrel is provided with several the first spiral shells being in tilted layout
Rotation positioning sipes, distributes on the outer wall of blind plate and is provided with several the first spiral positioning narrow slots being in tilted layout, first is spiral fixed
The quantity and incline direction of position narrow slot, it is corresponding with the quantity and incline direction of the first spiral positioning sipes；The inside cartridge
The first helical blade set is provided between distribution blind plate, the first helical blade set is by some pieces of the first leaves arranged in the shape of a spiral
Piece is formed, and the first blade includes the first sheet body, and the first narrow end of the first sheet body and the first spiral positioning for distributing blind plate outer wall are narrow
Groove is connected, and then the first spiral positioning sipes corresponding with the inside of inside cartridge is connected the first wide end of the first sheet body；The outside
The second helical blade set is provided between cylinder and inside cartridge, what the second helical blade set was arranged in the shape of a spiral by some pieces
Second blade is formed, and the second blade includes the second sheet body, and the second narrow end of the second sheet body and second on the outside of inside cartridge are spiral
Positioning narrow slot is connected, and the second wide end of the second sheet body is then connected with the second spiral positioning sipes on the inside of the cylinder of outside.
The first spiral positioning sipes on the inside of the inside cartridge, and the first spiral positioning narrow slot of distribution blind plate outer wall
Angle of inclination be 45 degree；The second spiral positioning sipes on the inside of the outside cylinder, and second on the outside of inside cartridge
The angle of inclination of spiral positioning narrow slot is 135 degree.To increase the first helical blade set and the second helical blade set blade and cigarette
The contact area of gas, so as to effectively improve the absorption efficiency of absorbing liquid, and reduces air resistance.
Between the length of first blade of first helical blade set is on the inside of inside cartridge between distribution blind plate outer wall
Away from 1.6~1.9 times；The length of second blade of second helical blade set, is on the inside of the cylinder of outside and outside inside cartridge
2.2~2.6 times of spacing between side.So that flue gas in the cylinder of same height by when, number of revolutions substantially increases, passes through
The length in path effectively extends, and flue gas comes into full contact with absorbing liquid.
The oblate column distribution blind plate being arranged in the middle part of inside cartridge, includes the enclosing side plate of tubular, encloses side plate
Upper and lower ends tube port position be respectively arranged with cover board；Several the first spiral positioning narrow slots being in tilted layout, are arranged on and enclose side
Side of the plate plate body outside distribution blind plate；Several risers are provided between two cover boards, are in " ten " font between riser
Arrangement.In order to which absorbing liquid is evenly distributed on each blade, so as to form thin liquid layer, revolved with rotating upward air-flow and being formed
Turn, centrifugal contact effect；And increase structural strength, prolong the service life.
The support ring flat-plate that the outside cylinder lower part is set includes Circular Plate, several are provided with Circular Plate along same circle
The slotted hole being equally spaced in week.In order to the installation of whole mass transfer absorption plant.
Several reinforcing plates are provided between the outside cylinder body outer wall and tower body inner wall；The support ring flat-plate lower part and tower
Several support plates are provided between internal wall.To increase the structural stability of mass transfer absorption plant, it is ensured that using effect.
The beneficial effects of the utility model：Since the utility model uses outside inner barrel to set inside cartridge, inner side
Distribution blind plate is set in the middle part of cylinder；Set first be made of some pieces of the first blades spiral between inside cartridge and distribution blind plate
Blade group, the first narrow end of the first blade are connected with distributing the first spiral positioning narrow slot of blind plate outer wall, and the first of the first blade
Wide end is then connected with the first spiral positioning sipes on the inside of inside cartridge；Set between outside cylinder and inside cartridge by some pieces
The second helical blade set that second blade is formed, the second narrow end of the second blade and the second spiral positioning on the outside of inside cartridge are narrow
Groove is connected, and the second wide end of the second blade is then connected with the second spiral positioning sipes on the inside of the cylinder of outside；Outside cylinder passes through
The structure type that support ring flat-plate is connected with tower body inner wall, so its design is reasonable, compact-sized, flue gas stream passes through by the first spiral shell
During the double helix blade construction that vane piece group and the second helical blade set are formed, rotation and centrifugal movement are produced；Absorbing liquid is then led to
Distributed amongst blind plate is crossed, is uniformly distributed on each blade of double helix blade construction, thin liquid layer and the rotation of blade surface
The air-flow of rising forms the effect of rotation and centrifugation, and air-flow is performed relative motion with absorbing liquid in tower, and in mass transfer absorption plant
Position form the moisture film of very high surface area, so as to effectively improve the absorption efficiency of absorption plant.There should be double helix blade knot
The mass transfer absorption plant of structure, since percent opening is larger, it is allowed to high-speed flow by, therefore live load is larger, and disposal ability is strong,
Pressure drop is relatively low, and operating flexibility is larger；And make flue gas in the cylinder of same height, number of revolutions increase, the path passed through increase
Long, gas phase turbulent fluctuation is violent, and flue gas is sufficiently collided, contacted, dissolved and absorbed over time and space with absorbing liquid, prevents
It is stifled, anti-scaling property is good, desulfuration efficiency is high.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the utility model.
Fig. 2 is sectional views of the Fig. 1 along line A-A.
Fig. 3 is the inner side expanded view of the outside cylinder in Fig. 2.
Fig. 4 is the outside expanded view of the inside cartridge in Fig. 2.
Fig. 5 is the inner side expanded view of the inside cartridge in Fig. 2.
Fig. 6 is a kind of half section structure diagram of the distribution blind plate in Fig. 2.
Fig. 7 is the top view of Fig. 6.
Fig. 8 is the outside expanded view of the enclosing side plate in Fig. 6.
Fig. 9 is a kind of structure diagram of the first blade in Fig. 2.
Figure 10 is a kind of structure diagram of the second blade in Fig. 2.
Figure 11 is a kind of structure diagram of the support ring flat-plate in Fig. 1.
Number explanation in figure：1 support ring flat-plate, 2 outside cylinders, 3 inside cartridges, 4 distribution blind plates, 5 first helical blade sets,
6 first blades, 7 second helical blade sets, 8 second blades, 9 reinforcing plates, 10 support plates, 11 tower bodies, 12 outer side neck plates, 13 second spiral shells
Rotation positioning sipes, 14 inboard cylinder plates, 15 second spiral positioning narrow slots, 16 first spiral positioning sipes, 17 cover boards, 18 enclose side
Plate, 19 risers, 20 plate bodys, 21 first spiral positioning narrow slots, 22 first sheet bodies, 23 first narrow ends, 24 first wide ends, 25 second
Body, 26 second narrow ends, 27 second wide ends, 28 Circular Plates, 29 slotted holes.
Embodiment
Describe the concrete structure of the utility model in detail according to Fig. 1~11.The novel double-helix mass transfer absorption plant includes
Lower part is provided with the outside cylinder 2 of support ring flat-plate 1, wherein, outside cylinder 2 is internally provided with axis and 2 axis of outside cylinder
The inside cartridge 3 to coincide, the middle part of inside cartridge 3 are then provided with the distribution blind plate 4 of oblate column.Outside cylinder 2 is by outside
Cylinder plate 12, which encloses, to be formed, and outer side neck plate 12 is located at the side of inner barrel, is provided with several and is used for 8 second wide end of the second blade
27 location and installations, the second spiral positioning sipes 13 being in tilted layout；Inside cartridge 3 is enclosed by inboard cylinder plate 14 and formed, inboard cylinder
Plate 14 is located at the side outside cylinder, is provided with several and is used for the second 8 second narrow end of blade 26 location and installation, is in tilted layout
Second spiral positioning narrow slot 15.The quantity of the second spiral positioning narrow slot 15 in the outside of inside cartridge 3, with the inner side of outside cylinder 2
The quantity of second spiral positioning sipes 13 is identical（Such as：It can all be 32）；And the inclination of the second spiral positioning sipes 13
Angle（When outer side neck plate 12 is unfolded, the angle between the second spiral positioning sipes 13 and outer 12 lower edge of side neck plate）, Yi Ji
The angle of inclination of two spiral positioning narrow slots 15（When inboard cylinder plate 14 is unfolded, under the second spiral positioning narrow slot 15 and inboard cylinder plate 14
Angle between edge）, it is 135 degree.
The inboard cylinder plate 14 of inside cartridge 3 is located at the side of inner barrel, is provided with several and is used for the first blade 6 first
24 location and installation of wide end, the first spiral positioning sipes 16 being in tilted layout；Distribute on the outer wall of blind plate 4, be provided with several use
In 23 location and installation of the first 6 first narrow end of blade, the first spiral positioning narrow slot 21 being in tilted layout.Distribute the of 4 outer wall of blind plate
The quantity of one spiral positioning narrow slot 21 is identical with the quantity of the first spiral positioning sipes 16 of the inner side of inside cartridge 3（Such as：Can
To be all 24）；And the angle of inclination of the first spiral positioning sipes 16（When inboard cylinder plate 14 is unfolded, the first spiral positioning is wide
Angle between 14 lower edge of groove 16 and inboard cylinder plate）, and the angle of inclination of the first spiral positioning narrow slot 21（Distribute blind plate 4
The expansion of 18 plate body 20 of enclosing side plate when, the first spiral positioning narrow slot 21 and enclose the folder between 20 lower edge of side plate 18 plate body
Angle）, it is 45 degree.To increase the first helical blade set 5 and the contact area of 7 blade of the second helical blade set and flue gas, so that
The absorption efficiency of absorbing liquid is effectively improved, and reduces air resistance.
The first helical blade set 5 is provided between inside cartridge 3 and distribution blind plate 4, the first helical blade set 5 is by some pieces
（Such as：It can be 24 pieces）, be arranged at using screw arrangement form 3 inner wall of inside cartridge and distribute between 4 outer wall of blind plate the
One blade 6 is formed.First narrow end 23 of 6 first sheet body 22 of the first blade, the first spiral positioning narrow slot with distributing 4 outer wall of blind plate
21 are connected, the first wide end 24 of 6 first sheet body 22 of the first blade, then first spiral positioning corresponding with the inner side of inside cartridge 3
Sipes 16 is connected, in the form of forming the screw arrangement of 5 each blade of the first helical blade set.Outside cylinder 2 and inside cartridge 3 it
Between be provided with the second helical blade set 7, the second helical blade set 7 is by some pieces（Such as：It can be 32 pieces）, using screw arrangement
The second blade 8 that form is arranged between 3 outer wall of 2 inner wall of cylinder and inside cartridge of outside is formed.Second blade, 8 second sheet body 25
The second narrow end 26, be connected with the second spiral positioning narrow slot 15 in the outside of inside cartridge 3,8 second sheet body 25 of the second blade
Second wide end 27, then be connected with the second spiral positioning sipes 13 on the inside of outside cylinder 2, to form the second helical blade set 7
The screw arrangement form of each blade.In order to make flue gas in the cylinder of same height by when, number of revolutions substantially increases, passes through
The length in path effectively extends, and gas phase turbulent fluctuation is violent, according to specifically using needs, the first blade 6 of the first helical blade set 5
Length, can be 1.6~1.9 times of spacing distance between the inner side of inside cartridge 3 and distribution 4 outer wall of blind plate；Second helical-blade
The length of second blade 8 of piece group 7, can be spacing distance between the outside inner side of cylinder 2 and the outside of inside cartridge 3 2.2~
2.6 again；And then flue gas is allowed sufficiently to be collided, contacted, dissolved and absorbed over time and space with absorbing liquid.
Each blade of the first helical blade set 5 and the second helical blade set 7 is uniformly distributed to for the ease of absorbing liquid
On, so as to form thin liquid layer, rotation, centrifugal contact effect are formed with rotating upward air-flow, is arranged on the middle part of inside cartridge 3
Oblate column distribution blind plate 4 is made of the enclosing side plate 18 of tubular, is enclosed the upper and lower ends tube port position of side plate 18, is respectively arranged with
For the cover board 17 for closing enclosing side plate 18；Several the first spiral positioning narrow slots 21 being in tilted layout, it is blind to be arranged on distribution
Plate 4 encloses 18 plate body 20 of side plate positioned at exterior side.In 18 cylinder of enclosing side plate between two cover boards 17, then it is provided with
Several are in the riser 19 of " ten " font arrangement, to increase structural strength, are prolonged the service life.
The support ring flat-plate 1 that outside cylinder 2 is set by its underpart, is connected with the inner wall of absorption tower tower body 11, supports ring flat-plate 1
It is made of Circular Plate 28；Support ring flat-plate 1 Circular Plate 28 on, be provided with several be used for install position, along between same circumference etc.
Slotted hole 29 away from arrangement；In order to the installation of whole mass transfer absorption plant.For increase mass transfer absorption plant structural stability
Purpose, between 11 inner wall of 2 outer wall of outside cylinder and absorption tower tower body, be provided with several reinforcing plates 9；Support under ring flat-plate 1
Between 11 inner wall of portion and absorption tower tower body, several support plates 10 are provided with, to ensure the using effect of device.
The novel double-helix mass transfer absorption plant is in use, first, by the support ring flat-plate 1 of 2 lower part of outside cylinder, whole
A mass transfer absorption plant is installed on inside absorption tower tower body 11., can be by mass transfer absorption plant cloth according to specifically needs are used
The position below demister, more than spraying layer is put, or is arranged in below the spraying layer of the bottom.Then, by primary net
The flue gas of change is along absorption tower lower part tangential direction, and into the double helix mass transfer absorption plant, flue gas stream passes through the first helical-blade
When piece group 5 and the second helical blade set 7, rotation and centrifugal movement are produced；Meanwhile absorbing liquid is then uniformly divided by distributing blind plate 4
Each blade is fitted on, to form thin liquid layer, and rotation and the effect centrifuged is formed with rotating upward flue gas stream, is sprayed into tiny
Drop, gets rid of to after tower wall；Afterwards, drop is flowed to collecting tank by gravity collection.I.e.：With certain wind pressure, wind speed it is pending
Flue gas stream goes out from the bottom on absorption tower into, top；Absorbing liquid then goes out via the top on absorption tower into, lower part, so that flue gas
Air-flow is performed relative motion with absorbing liquid in absorption tower, and the water of large surface area is formed at double helix mass transfer absorption plant
Film, using principles such as the inertial collision of grit and drop, centrifugation and liquid film adhesions, to lift absorption efficiency.
The double-spiral structure being made of the first helical blade set 5 and the second helical blade set 7, percent opening is larger, Neng Gouyun
Perhaps high-speed flow passes through；Therefore, the load of whole device is higher, and disposal ability is larger, is not easy to plug, and pressure drop is relatively low, operates bullet
Property is big.Also, since its gas-liquid contact time is shorter, so being suitable for the process of gas phase diffusion control.The novel double-helix passes
Matter absorption plant, increases flue gas number of revolutions increase, the path passed through in the cylinder of same height, gas phase turbulent fluctuation is violent；
Slurries on each blade of double-spiral structure, flow to tower wall via the center of circle, hold the liquid time on blade so as to add, make
Flue gas is sufficiently collided, is contacted, dissolved and absorbed over time and space with absorbing liquid；Efficiency of dust collection can reach
More than 98.5%.
Claims (6)
1. a kind of novel double-helix mass transfer absorption plant, including outside cylinder（2）, it is characterised in that：The outside cylinder（2）'s
Lower part is provided with support ring flat-plate（1）, outside cylinder（2）Be internally provided with inside cartridge（3）, inside cartridge（3）Axis with
Outside cylinder（2）Axis coincide, inside cartridge（3）Middle part be provided with the distribution blind plate of oblate column（4）；Outside cylinder
（2）By outer side neck plate（12）Enclose and form, outer side neck plate（12）The side of inner barrel is provided with several to be in tilted layout
The second spiral positioning sipes（13）；Inside cartridge（3）By inboard cylinder plate（14）Enclose and form, inboard cylinder plate（14）Positioned at cylinder
Exterior side is provided with several the second spiral positioning narrow slots being in tilted layout（15）, the second spiral positioning narrow slot（15）Number
Amount and incline direction, with the second spiral positioning sipes（13）Quantity and incline direction it is corresponding；Inboard cylinder plate（14）Positioned at cylinder
The side in internal portion is provided with several the first spiral positioning sipes being in tilted layout（16）, distribute blind plate（4）Outer wall on set
It is equipped with several the first spiral positioning narrow slots being in tilted layout（21）, the first spiral positioning narrow slot（21）Quantity and inclination side
To with the first spiral positioning sipes（16）Quantity and incline direction it is corresponding；The inside cartridge（3）With distributing blind plate（4）
Between be provided with the first helical blade set（5）, the first helical blade set（5）By some pieces of the first blades arranged in the shape of a spiral
（6）Form, the first blade（6）Including the first sheet body（22）, the first sheet body（22）The first narrow end（23）With distributing blind plate（4）Outside
First spiral positioning narrow slot of wall（21）It is connected, the first sheet body（22）The first wide end（24）Then with inside cartridge（3）Inner side phase
The the first spiral positioning sipes answered（16）It is connected；The outside cylinder（2）With inside cartridge（3）Between be provided with the second helical-blade
Piece group（7）, the second helical blade set（7）By some pieces of the second blades arranged in the shape of a spiral（8）Form, the second blade（8）Bag
Include the second sheet body（25）, the second sheet body（25）The second narrow end（26）With inside cartridge（3）The second spiral positioning narrow slot in outside
（15）It is connected, the second sheet body（25）The second wide end（27）Then with outside cylinder（2）Second spiral positioning sipes of inner side（13）
It is connected.
2. novel double-helix mass transfer absorption plant according to claim 1, it is characterised in that：The inside cartridge（3）It is interior
First spiral positioning sipes of side（16）, and distribution blind plate（4）First spiral positioning narrow slot of outer wall（21）Angle of inclination
It is 45 degree；The outside cylinder（2）Second spiral positioning sipes of inner side（13）, and inside cartridge（3）The second of outside
Spiral positioning narrow slot（15）Angle of inclination be 135 degree.
3. novel double-helix mass transfer absorption plant according to claim 1, it is characterised in that：First helical blade set
（5）The first blade（6）Length, be inside cartridge（3）Inner side and distribution blind plate（4）The 1.6~1.9 of spacing between outer wall
Times；Second helical blade set（7）The second blade（8）Length, be outside cylinder（2）Inner side and inside cartridge（3）Outside
2.2~2.6 times of spacing between side.
4. novel double-helix mass transfer absorption plant according to claim 1, it is characterised in that：It is described to be arranged on inside cartridge
（3）The oblate column distribution blind plate at middle part（4）, include the enclosing side plate of tubular（18）, enclose side plate（18）Upper and lower ends cylinder
Cover board is respectively arranged with mouthful（17）；Several the first spiral positioning narrow slots being in tilted layout（21）, it is arranged on enclosing side plate
（18）Plate body（20）Positioned at distribution blind plate（4）Exterior side；Two cover boards（17）Between be provided with several risers（19）, stand
Plate（19）Between in " ten " font arrange.
5. novel double-helix mass transfer absorption plant according to claim 1, it is characterised in that：The outside cylinder（2）Under
The support ring flat-plate that portion is set（1）Including Circular Plate（28）, Circular Plate（28）On be provided with several along the equidistant cloth of same circumference
The slotted hole put（29）.
6. novel double-helix mass transfer absorption plant according to claim 1, it is characterised in that：The outside cylinder（2）Outside
Wall and tower body（11）Several reinforcing plates are provided between inner wall（9）；The support ring flat-plate（1）Lower part and tower body（11）Inner wall it
Between be provided with several support plates（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721002959.4U CN207221636U (en) | 2017-08-11 | 2017-08-11 | A kind of novel double-helix mass transfer absorption plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721002959.4U CN207221636U (en) | 2017-08-11 | 2017-08-11 | A kind of novel double-helix mass transfer absorption plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207221636U true CN207221636U (en) | 2018-04-13 |
Family
ID=61856856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721002959.4U Expired - Fee Related CN207221636U (en) | 2017-08-11 | 2017-08-11 | A kind of novel double-helix mass transfer absorption plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN207221636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180070A (en) * | 2021-12-10 | 2022-03-15 | 中国商用飞机有限责任公司 | Bidirectional rotational flow mixing device for air source system heat exchanger |
-
2017
- 2017-08-11 CN CN201721002959.4U patent/CN207221636U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180070A (en) * | 2021-12-10 | 2022-03-15 | 中国商用飞机有限责任公司 | Bidirectional rotational flow mixing device for air source system heat exchanger |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20210811 |