CN114084926A - Novel smoke distributor device with adjustable air duct circulation cross section - Google Patents
Novel smoke distributor device with adjustable air duct circulation cross section Download PDFInfo
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- CN114084926A CN114084926A CN202111558681.XA CN202111558681A CN114084926A CN 114084926 A CN114084926 A CN 114084926A CN 202111558681 A CN202111558681 A CN 202111558681A CN 114084926 A CN114084926 A CN 114084926A
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- air duct
- inner air
- adjustable
- fan blade
- adjustable fan
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- 239000000779 smoke Substances 0.000 title claims abstract description 62
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003546 flue gas Substances 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000002351 wastewater Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 18
- 239000013598 vector Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 239000007921 spray Substances 0.000 description 6
- 238000001694 spray drying Methods 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a novel smoke distributor device with an adjustable air duct flow cross section, which comprises: the smoke distributor, the traction steel wire rope and the motor actuating mechanism; an inlet of the flue gas distributor is connected with the volute constant-pressure channel, and the flue gas distributor is positioned at the top of the drying tower; the surface of a smoke distributor body of the smoke distributor is provided with an inner air duct conical ring, an inner air duct guide plate is arranged on the inner air duct conical ring, and the adjustable fan blades of the inner air duct are connected with the bottom of the inner air duct conical ring through hinges. The invention has the beneficial effects that: the invention provides a novel adjustable smoke distributor device with an inner air duct and an outer air duct, which effectively solves the problems that the smoke flow distribution and the speed vector of the inner air duct and the outer air duct of the existing smoke distributor can not be adjusted, the smoke rotational flow and liquid drops are not fully mixed, the drying efficiency is low, fog drops adhere to the wall of a tower and the like, further innovations are made on the distributor structure, and an adjustable actuating mechanism with the inner air duct and the outer air duct is designed.
Description
Technical Field
The invention belongs to the technical field of zero discharge of waste water and the field of rotary spray drying equipment, and particularly relates to a novel smoke distributor device with an adjustable air channel flow section.
Background
The smoke distributor is used as a core device of the spray drying tower and has the function of uniformly feeding hot smoke into the drying tower to be fully contacted with atomized wastewater for heat exchange and mass transfer, so that atomized fog drops are fully dried, and salts in the wastewater form powdery substances. At present, an inner air channel and an outer air channel of a flue gas distributor of a spray drying tower for zero discharge of waste water are equal-diameter channels, the flow cross section of the flue gas distributor is fixed, and the wind speed vectors of the inner air channel and the outer air channel are fixed. The gas-liquid heat exchange is insufficient, the spraying angle of rotary atomization and the track of liquid drops are difficult to control in the actual engineering operation, the spraying angle and the track of the liquid drops are not consistent with the design values, the flue gas and the atomized liquid drops are mixed unevenly, the adaptability is poor, the fog drops cannot be dried fully, and the fog drops can be adhered to the wall.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a novel smoke distributor device with an adjustable air duct flow cross section.
This kind of novel flue gas distributor device with adjustable wind channel circulation cross-section includes: the smoke distributor, the traction steel wire rope and the motor actuating mechanism; an inlet of the flue gas distributor is connected with the volute constant-pressure channel, and the flue gas distributor is positioned at the top of the drying tower; the surface of a smoke distributor body of the smoke distributor is provided with an inner air duct conical ring, an inner air duct guide plate is arranged on the inner air duct conical ring, and an adjustable fan blade of an inner air duct is connected with the bottom of the inner air duct conical ring through a hinge; the outer part of the inner air duct conical ring is connected with the outer air duct conical ring, an outer air duct guide plate is arranged on the outer air duct conical ring, and the adjustable fan blades of the outer air duct are connected with the bottom of the outer air duct conical ring through hinges; rope buckles are arranged on the outer sides of the outer air duct adjustable fan blade and the inner air duct adjustable fan blade, and the traction steel wire ropes respectively penetrate through the rope buckles to connect the sub-fan blades of the outer air duct adjustable fan blade in series to form an annular outer air duct adjustable fan blade; connecting the sub-blades of the inner air channel adjustable fan blade in series to form an annular inner air channel adjustable fan blade; the middle part of the outer air duct adjustable fan blade is provided with a guide pulley, and the middle part of the inner air duct adjustable fan blade is also provided with a guide pulley; the traction steel wire rope is a pull rope on the guide pulley; the traction steel wire rope is connected with the motor actuating mechanism.
Preferably, the bottom of the inner air duct conical ring and the bottom of the outer air duct conical ring are respectively the air outlet bottoms of the inner air duct conical ring and the outer air duct conical ring.
Preferably, the rotary atomizer is arranged at the bottom of the smoke distributor and is not connected with other devices of the smoke distributor.
Preferably, the outer air duct adjustable fan blades and the inner air duct adjustable fan blades are uniformly arranged around the central axis of the smoke distributor body, and the fan blades are covered in a staggered mode without gaps.
Preferably, the guide pulley is used as a connecting guide device of the traction steel wire rope; the two guide pulleys are respectively arranged in the middle of the inner air duct adjustable fan blade and the outer air duct adjustable fan blade and can independently control the inner ring fan blade and the outer ring fan blade to zoom.
Preferably, the motor executing mechanism is a double motor, and each motor is respectively connected with a traction steel wire rope arranged on the outer air duct adjustable fan blade and the inner air duct adjustable fan blade.
Preferably, the flue gas distributor body is conical.
The working method of the novel smoke distributor device with the adjustable air passage flow section specifically comprises the following steps:
step 1, in an initial state, the inner air duct adjustable fan blade and the outer air duct adjustable fan blade are both vertically downward and parallel to a central axis of a smoke distributor body;
step 2, when the waste water amount is reduced in the operation process, so that the smoke amount is reduced, and the smoke flow velocity of the inner air duct conical ring and the outer air duct conical ring of the smoke distributor is reduced, the heat transfer efficiency of the gas and the liquid is weakened under the working condition, the pressing effect of the smoke curtain on the spray is reduced, the smoke flow velocity can be increased by reducing the angles of the outer air duct adjustable fan blades and the inner air duct adjustable fan blades, the smoke curtain range is reduced, the spray radius is pressed, the fog drops are prevented from sticking to the wall, and the effect of enhancing the heat transfer of the gas and the liquid is achieved;
and 3, when the waste water amount is increased in the operation process, the angles of the adjustable fan blades of the outer air duct and the adjustable fan blades of the inner air duct are increased, the flow speed of the flue gas in the inner channel and the flue gas out of the outer channel are kept stable, the radius of the flue gas curtain is enlarged, the gas-liquid contact area is increased, and the flue gas and atomized liquid drops are uniformly mixed.
Preferably, in step 2 and step 3: under the opening and closing state, the opening and closing angle range of the inner air duct adjustable fan blade and the outer air duct adjustable fan blade is-30 degrees from the central axis of the smoke distributor body, the length of a traction steel wire rope connected with the motor is controlled through the rotating shaft of each motor in the motor actuating mechanism, and the inner air duct adjustable fan blade and the outer air duct adjustable fan blade are independently controlled to perform flaring or necking actions, so that the purpose of adjusting the smoke vectors of the inner air duct and the outer air duct is achieved.
The invention has the beneficial effects that:
the invention provides a novel adjustable smoke distributor device with an inner air duct and an outer air duct, which effectively solves the problems that the smoke flow distribution and the speed vector of the inner air duct and the outer air duct of the existing smoke distributor can not be adjusted, the smoke rotational flow and liquid drops are not fully mixed, the drying efficiency is low, fog drops adhere to the wall of a tower and the like, further innovations are made on the distributor structure, and an adjustable actuating mechanism with the inner air duct and the outer air duct is designed.
The outlet of the bottom of the inner air duct and the outlet of the bottom of the outer air duct are respectively provided with two groups of adjustable fan blades which are respectively connected in series by steel wire ropes, the adjustable fan blades of the inner air duct and the outer air duct can form flaring and necking states by traction of the steel wire ropes, the running load can be greatly adjusted, the matching property of the smoke volume and the waste water volume under various working conditions is met, the cyclone of the smoke can be increased, the gas-liquid two-phase mixing effect is ensured, the two-phase heat and mass transfer capacity is improved, the heat of the smoke is fully utilized to enhance the waste water evaporation effect, meanwhile, the problem that the drying effect is poor, the spray liquid drops are easily adhered to the wall, and the inner air duct and the outer air duct of the smoke distributor are difficult to reform is solved.
Drawings
FIG. 1 is a schematic view of the overall structure of a spray drying tower;
FIG. 2 is a schematic sectional view of a flue gas distributor;
FIG. 3 is a schematic view illustrating a folding state of adjustable fan blades;
FIG. 4 is a schematic view of the adjustable fan blade in a vertical state;
FIG. 5 is a schematic view of an opened state of adjustable fan blades;
FIG. 6 is a schematic view of an expanding structure of an adjustable fan blade;
FIG. 7 is a schematic view of an adjustable actuator connection arrangement.
Description of reference numerals: the device comprises a volute constant-pressure channel 1, a drying tower 2, a flue gas distributor 3, a traction steel wire rope 4, a motor actuating mechanism 5, an outer air duct conical ring 6, an outer air duct flow guide plate 7, an outer air duct adjustable fan blade 8, an inner air duct conical ring 9, an inner air duct flow guide plate 10, an inner air duct adjustable fan blade 11, a flue gas distributor body 12, a rotary atomizer 13, a hinge 14, a rope buckle 15, a guide pulley 16, an inner air duct conical ring bottom 17 and an outer air duct conical ring bottom 18.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for a person skilled in the art, several modifications can be made to the invention without departing from the principle of the invention, and these modifications and modifications also fall within the protection scope of the claims of the present invention.
Example one
The embodiment of the present application provides a novel smoke distributor device with adjustable air duct flow cross section as shown in fig. 1 to 2:
the device mainly comprises an inner flue gas distributor body 12, an inner air duct conical ring 9, an inner air duct guide plate 10, an inner air duct adjustable fan blade 11, an outer air duct conical ring 6, an outer air duct guide plate 7, an outer air duct adjustable fan blade 8, a traction steel wire rope 4 and a motor actuating mechanism 5.
The air duct outlets of the inner air duct conical ring 9 and the outer air duct conical ring 6 are provided with adjustable fan blades which are connected with the bottom shell (the bottom 17 of the inner air duct conical ring and the bottom 18 of the outer air duct conical ring) through hinges 14, the fan blades (the outer air duct adjustable fan blades 8 and the inner air duct adjustable fan blades 11) are uniformly distributed around the axis of the conical ring and are staggered and covered, and gaps do not exist among the fan blades.
As shown in fig. 3 to 5, in the initial state of the adjustable fan blade, the outer duct adjustable fan blade 8 and the inner duct adjustable fan blade 11 are both vertically downward and parallel to the axis of the conical ring; in the opening and closing state, the included angle range of the outer air duct adjustable fan blade 8, the inner air duct adjustable fan blade 11 and the axis of the conical ring is-30 degrees, and the opening and closing scale of the fan blades can be adjusted in the angle range.
As shown in fig. 6 to 7, the adjustable actuator is composed of adjustable blades (an outer duct adjustable blade 8 and an inner duct adjustable blade 11), a wire rope buckle (a rope buckle 15), a traction wire rope 4, a guide pulley 16, and a motor actuator 5. The adjustable fan blade is welded with a steel wire rope buckle on the surface, and the steel wire rope penetrates through the rope buckle to enable the fan blades to form a serial connection structure and is connected with the motor actuating mechanism through a guide pulley. The adjustable fan blades of the inner air duct and the outer air duct are respectively connected with two inner ring steel wire ropes and two outer ring steel wire ropes, are respectively controlled by two independent motors, and the length of the steel wire ropes is adjusted by controlling the rotation direction and the number of rotation turns of the motors, so that the purpose of adjusting the opening and closing angles of the inner ring fan blades and the outer ring fan blades is achieved.
Example two
On the basis of the first embodiment, the second embodiment of the present application provides a working method of the novel flue gas distributor device with an adjustable air passage flow cross section in the first embodiment:
the adjustable fan blade control strategy is as follows:
when the smoke curtain is operated, the waste water amount is reduced, the corresponding smoke amount is reduced, the flow speed of inner and outer channels (inner air channel conical ring and outer air channel conical ring) of the smoke distributor is reduced, the heat transfer efficiency to gas and liquid is weakened under the working condition, the pressing effect of the smoke curtain on the spray is reduced, the angle of inner and outer air channel fan blades (inner air channel adjustable fan blade and outer air channel adjustable fan blade) can be reduced through adjustment, the smoke flow speed is increased, the range of the smoke curtain is reduced, the spray radius is pressed, the fog drops are prevented from sticking to the wall, and the effect of enhancing the gas and liquid heat transfer is achieved;
when the waste water amount is increased in the operation process, the angles of the inner and outer air duct fan blades (the inner air duct adjustable fan blade and the outer air duct adjustable fan blade) can be adjusted and increased, the flow speed of the smoke of the inner and outer channels (the inner air duct conical ring and the outer air duct conical ring) is kept stable, the radius of the smoke screen is enlarged, the gas-liquid contact area is increased, and the smoke and atomized liquid drops are uniformly mixed. The device can flexibly adjust the radius of the smoke screen and the smoke vector, and meets the condition of waste water quantitative change load operation.
Have atomizing disk among the actual engineering and not conform to the index, the atomizing particle diameter is too big, leads to flue gas distributor's design can't satisfy the actual operating condition of engineering, and engineering transformation cost height cycle is long, can change inside and outside wind channel circulation cross-section through installing the device, and is fully dry to the great droplet of particle diameter, prevents to produce the droplet and glues the wall, and is convenient effective. The adjustable fan blades are connected with the conical ring shell through spring hinges or electric execution hinges and the like, the flow areas of the inner air channel and the outer air channel of the smoke distributor can be adjusted in multiple directions by opening and closing the inner air channel and the outer air channel of the fan blades, the problems that the smoke volume of the inner air channel and the smoke volume of the outer air channel are not matched with the spray volume in actual operation of the device, the gas-liquid heat and mass transfer efficiency is low, fog drops stick to the wall and the like are solved, and the real-time adjustment of the smoke velocity vectors of the inner air channel and the outer air channel in operation is realized. The adjustable novel smoke distributor can adjust the angle of the fan blades of the inner air duct and the outer air duct through the opening and closing of the hinge, can perform adjustable operation on the flow distribution ratio of the inner air duct and the outer air duct, adapts to the complexity of the spraying track of the rotary spraying liquid drops in actual operation, and simultaneously realizes the variable load regulation capacity of spray drying under different working conditions.
Claims (7)
1. A novel smoke distributor device with adjustable wind channel circulation cross-section, its characterized in that includes: the smoke gas distributor (3), the traction steel wire rope (4) and the motor actuating mechanism (5); the inlet of the flue gas distributor (3) is connected with the volute constant-pressure channel (1), and the flue gas distributor (3) is positioned at the top of the drying tower (2); an inner air duct conical ring (9) is arranged on the surface of a smoke distributor body (12) of the smoke distributor (3), an inner air duct guide plate (10) is arranged on the inner air duct conical ring (9), and an inner air duct adjustable fan blade (11) is connected with the bottom (17) of the inner air duct conical ring (9) through a hinge (14); the outer part of the inner air duct conical ring (9) is connected with an outer air duct conical ring (6), an outer air duct flow guide plate (7) is arranged on the outer air duct conical ring (6), and an outer air duct adjustable fan blade (8) is connected with the bottom (18) of the outer air duct conical ring (6) through a hinge (14);
rope buckles (15) are arranged on the outer sides of the outer air channel adjustable fan blade (8) and the inner air channel adjustable fan blade (11), and the traction steel wire ropes (4) respectively penetrate through the rope buckles (15) to connect sub-fan blades of the outer air channel adjustable fan blade (8) in series to form an annular outer air channel adjustable fan blade (8); the sub-blades of the inner air channel adjustable fan blade (11) are connected in series to form an annular inner air channel adjustable fan blade (11);
the middle part of the outer air duct adjustable fan blade (8) is provided with a guide pulley (16), and the middle part of the inner air duct adjustable fan blade (11) is also provided with a guide pulley (16); the traction steel wire rope (4) is a pull rope on the guide pulley (16); the traction steel wire rope (4) is connected with a motor actuating mechanism (5).
2. The new flue gas distributor device with adjustable air channel flow cross section of claim 1, characterized in that: the bottom (17) of the inner air duct conical ring and the bottom (18) of the outer air duct conical ring are respectively the air outlet bottoms of the inner air duct conical ring (9) and the outer air duct conical ring (6).
3. The new flue gas distributor device with adjustable air channel flow cross section of claim 1, characterized in that: the outer air duct adjustable fan blades (8) and the inner air duct adjustable fan blades (11) are uniformly arranged around the central axis of the smoke distributor body (12), and the fan blades are covered in a staggered mode without gaps.
4. The new flue gas distributor device with adjustable air channel flow cross section of claim 1, characterized in that: the guide pulley (16) is used as a connecting guide device of the traction steel wire rope (4).
5. The new flue gas distributor device with adjustable air channel flow cross section of claim 1, characterized in that: the motor actuating mechanism (5) is a double motor, one motor is connected with a traction steel wire rope (4) arranged on the outer air duct adjustable fan blade (8), and the other motor is connected with a traction steel wire rope (4) arranged on the inner air duct adjustable fan blade (11).
6. A working method of a novel flue gas distributor device with an adjustable air duct flow cross section as claimed in claim 1, characterized in that it comprises the following steps:
step 1, in an initial state, an inner air duct adjustable fan blade (11) and an outer air duct adjustable fan blade (8) are both vertically downward and parallel to a central axis of a smoke distributor body (12);
step 2, when the waste water amount in the operation process is reduced and the flue gas flow rate of the inner air duct conical ring (9) and the outer air duct conical ring (6) of the flue gas distributor is reduced, reducing the angles of the outer air duct adjustable fan blades (8) and the inner air duct adjustable fan blades (11) under the working condition;
and 3, increasing the angles of the outer air duct adjustable fan blades (8) and the inner air duct adjustable fan blades (11) when the waste water amount in the operation process is increased.
7. The working method of the novel flue gas distributor device with adjustable air passage flow cross section according to claim 6, is characterized in that in the step 2 and the step 3: under the opening and closing state, the opening and closing angle range of the inner air duct adjustable fan blade (11) and the outer air duct adjustable fan blade (8) is-30 degrees from the central axis of the smoke distributor body (12), the length of a traction steel wire rope (4) connected with the motor is controlled through the rotating shaft of each motor in the motor actuating mechanism (5), and the inner air duct adjustable fan blade (11) and the outer air duct adjustable fan blade (8) are independently controlled to perform flaring or necking actions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111558681.XA CN114084926A (en) | 2021-12-20 | 2021-12-20 | Novel smoke distributor device with adjustable air duct circulation cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111558681.XA CN114084926A (en) | 2021-12-20 | 2021-12-20 | Novel smoke distributor device with adjustable air duct circulation cross section |
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| Publication Number | Publication Date |
|---|---|
| CN114084926A true CN114084926A (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111558681.XA Pending CN114084926A (en) | 2021-12-20 | 2021-12-20 | Novel smoke distributor device with adjustable air duct circulation cross section |
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| CN (1) | CN114084926A (en) |
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| CN216584278U (en) * | 2021-12-20 | 2022-05-24 | 浙江天地环保科技股份有限公司 | Novel smoke distributor device with adjustable air duct circulation section |
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2021
- 2021-12-20 CN CN202111558681.XA patent/CN114084926A/en active Pending
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