CN108889243B - Double-cyclone three-stream spray gun - Google Patents
Double-cyclone three-stream spray gun Download PDFInfo
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- CN108889243B CN108889243B CN201810826002.4A CN201810826002A CN108889243B CN 108889243 B CN108889243 B CN 108889243B CN 201810826002 A CN201810826002 A CN 201810826002A CN 108889243 B CN108889243 B CN 108889243B
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- 239000007921 spray Substances 0.000 title claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 238000009434 installation Methods 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000889 atomisation Methods 0.000 abstract description 17
- 230000007547 defect Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 210000003781 tooth socket Anatomy 0.000 description 3
- 238000003889 chemical engineering Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
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Abstract
The invention discloses a double-cyclone three-flow spray gun which comprises an access seat, a gun rod and a double-cyclone nozzle, wherein one end of the gun rod is communicated with the access seat, and the other end of the gun rod is communicated with the double-cyclone nozzle; the gun rod is provided with a first inner circulation path and a first outer circulation path which are not communicated with each other; the liquid inlet, the first gas inlet and the second gas inlet are arranged on the access seat, the liquid inlet and the first gas inlet are communicated with the first inner cyclone flow passage, and the second gas inlet is communicated with the first outer cyclone flow passage; the double-swirl nozzle is provided with a second inner swirl passage, a second outer swirl passage, an inner swirl chamber and an outer swirl chamber; the invention can feed three-flow fluid by arranging two passages, three inlets and two independent swirl chambers to realize two-time atomization, the sprayed liquid drops are thinner and more uniform, and the sprayed fog curtain is a conical fog curtain with a large atomization angle under the condition of proper pressure, thereby overcoming the defect of uneven size of the liquid drops sprayed by the spray gun in the prior art.
Description
Technical Field
The invention relates to the technical field of pharmacy, food, chemical engineering and the like, in particular to a double-cyclone three-flow spray gun for atomization, which is used in granulation, pelleting and coating equipment for pharmacy, food and chemical engineering.
Background
The pneumatic swirl atomizing spray gun of pharmaceutical, food and chemical equipment on the market is a two-flow spray gun of one gas, one liquid to only there is a swirl chamber, in fluidized bed equipment, this kind of spray gun is better than the liquid pressure swirl spray gun of one-class, and liquid flow size can both normally spray, but still has very big defect: the spray liquid drop is large, only suitable for large-particle granulation of a fluidized bed, the spray liquid drop of small-particle granulation is too large, the coating and pelleting are larger, and in addition, the spray gun is not easy to control the size of the spray liquid drop.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a double-cyclone three-flow spray gun with high atomization strength and good atomization effect.
The technical scheme adopted by the invention is as follows:
a double-cyclone three-flow spray gun comprises an access seat, a gun rod and a double-cyclone nozzle, wherein one end of the gun rod is communicated with the access seat, and the other end of the gun rod is communicated with the double-cyclone nozzle; the gun rod is provided with a first inner circulation path and a first outer circulation path which are not communicated with each other; the liquid inlet, the first gas inlet and the second gas inlet are arranged on the access seat, the liquid inlet and the first gas inlet are communicated with the first inner cyclone flow passage, and the second gas inlet is communicated with the first outer cyclone flow passage; the double-swirl nozzle is provided with a second inner swirl passage, a second outer swirl passage, an inner swirl chamber and an outer swirl chamber; one end of the second inner cyclone passage is communicated with the first inner cyclone passage, and the other end is communicated with the inner cyclone chamber; one end of the second outer rotational flow passage is communicated with the first outer rotational flow passage, and the other end of the second outer rotational flow passage is communicated with the outer rotational flow chamber; the outlet of the outer cyclone chamber is provided with an outer cyclone nozzle, the outlet of the inner cyclone chamber is provided with an inner cyclone nozzle, and the outer cyclone nozzle is positioned under the inner cyclone nozzle.
Further, the gun rod comprises an inner sleeve and an outer sleeve, the inner sleeve and the outer sleeve are both hollow pipe body structures with openings at two ends, the outer diameter of the inner sleeve is smaller than the inner diameter of the outer sleeve, and the inner sleeve is arranged in the outer sleeve; the inner pipeline of the inner sleeve is a first inner cyclone passage, and a passage formed between the outer wall of the inner sleeve and the inner wall of the outer sleeve is a first outer cyclone passage.
Further, the first inner swirl flow passage and the first outer swirl flow passage are on the same axis.
Furthermore, the length of the inner sleeve is greater than that of the outer sleeve, the inner sleeve is arranged in the outer sleeve, and two ends of the inner sleeve extend out of the outer sleeve.
Furthermore, the liquid inlet is arranged at the end part of the access seat and is arranged along the axial direction of the access seat; the first gas inlet and the second gas inlet are both arranged on the side wall of the access seat, and the first gas inlet and the second gas inlet are opposite in opening direction and are not communicated with each other; the liquid inlet and the first gas inlet are communicated with the first inner circulation path, and the second gas inlet is communicated with the first outer circulation path.
Furthermore, the double-swirl nozzle comprises a nozzle seat, an inner flow pipe, an inner swirler, a swirl generating device and an outer swirler; the side wall of the nozzle seat is provided with a first stepped hole, and the inner diameter of the first stepped hole is reduced in a stepped manner from outside to inside; the bottom of the nozzle seat is provided with a second stepped hole, and the inner diameter of the second stepped hole is reduced in a stepped manner from top to bottom; the first stepped hole is communicated with the second stepped hole; the inner flow pipe, the inner swirler, the rotational flow generating device and the outer swirler are all arranged in the second stepped hole; an inner cyclone cavity is arranged in the inner cyclone, an outer cyclone cavity is arranged in the outer cyclone, and the inner cyclone is arranged in the outer cyclone cavity of the outer cyclone; the cyclone generating device is arranged in an inner cyclone cavity of the inner cyclone, the upper end of the inner flow pipe is communicated with the first inner cyclone passage, the lower end of the inner flow pipe is arranged in the inner cyclone cavity of the inner cyclone, and the lower end of the inner flow pipe is communicated with the inner cyclone; the inner pipeline of the inner flow pipe is a second inner cyclone passage, an inner cyclone chamber is formed by the cyclone generating device and the inner cyclone cavity of the inner cyclone, a second outer cyclone passage is formed by the second stepped hole and the gaps among the inner flow pipe, the cyclone generator, the inner cyclone and the outer cyclone, and an outer cyclone chamber is formed by the gap between the inner cyclone and the outer cyclone.
Furthermore, the swirl generating device is a swirl generator, one end of the swirl generator is provided with a mounting hole a, the middle part of the swirl generator is provided with a first flow guide channel which transversely penetrates through the swirl generator, and the first flow guide channel is communicated with the mounting hole a; the other end of the swirl generator is provided with a swirl generating chamber, and the swirl generating chamber is provided with a first flow guide hole penetrating through the side wall of the swirl generating chamber.
Furthermore, the inner cyclone cavity of the inner cyclone comprises an installation section, a conical section and a nozzle which are sequentially communicated; the swirl generator is arranged at the mounting section of the inner swirl cavity, and the lower end of the inner swirl tube is arranged in a mounting hole a of the swirl generator; the second diversion channel is formed in a gap between the vortex generator and the installation section, the vortex generation chamber is opposite to the conical section of the inner vortex cavity and communicated with the conical section, and the vortex generation chamber, the conical section and the nozzle are sequentially communicated to form the inner vortex chamber.
Furthermore, the bottom of the inner flow tube is provided with two first notches, and the two first notches are symmetrically arranged; the rotational flow generating device is a threaded rod, the threaded rod is provided with a downward external thread, and the top of the threaded rod is provided with a second notch corresponding to the first notch; the threaded rod is arranged in the inner cyclone, the lower end of the inner flow pipe is inserted into the inner cyclone, and the first notch is opposite to the second notch.
Furthermore, the outer swirler is provided with two second flow guide holes penetrating through the side wall of the outer swirler, and the two second flow guide holes are rotationally symmetrical.
The invention has the beneficial effects that:
the gun rod is provided with a first inner cyclone passage and a first outer cyclone passage which are not communicated with each other, and the access seat is provided with a liquid inlet, a first gas inlet and a second gas inlet. Atomized liquid is introduced from the liquid inlet, and compressed air is introduced from the first gas inlet and the second gas inlet. Before the atomized liquid and the compressed air introduced from the first gas inlet and the second gas inlet are connected, the pressure and the flow rate of the atomized liquid and the compressed air can be respectively controlled. Atomized liquid and compressed air introduced from the first gas inlet are mixed in the first inner cyclone passage, enter the inner cyclone chamber through the second inner cyclone passage, and are sprayed out by the nozzle of the inner cyclone chamber to be atomized for the first time. Compressed air introduced from the second gas inlet enters the outer cyclone chamber through the first outer cyclone passage and the second outer cyclone passage, liquid drops sprayed out of the inner cyclone chamber are atomized again, the liquid drops sprayed out of the inner cyclone chamber are finer and more uniform through atomization again, and the spray curtain sprayed out of the nozzle is a conical spray curtain with a large atomization angle under the condition of proper pressure, so that the spray gun is very suitable for a fluidized bed granulating dryer, and the defects that a spray gun can only spray a conical spray curtain with a small atomization angle in the prior art and the size of the liquid drops is uneven are overcome.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the portion B;
FIG. 4 is an enlarged view of portion A;
FIG. 5 is a schematic view of another embodiment swozzle configuration;
FIG. 6 is a schematic view of a nozzle carrier according to another embodiment;
FIG. 7 is a schematic view of a threaded bar construction;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic view of an alternate embodiment of an interior flow tube configuration;
FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;
FIG. 11 is a schematic view of an alternative embodiment of a flow device;
FIG. 12 is a schematic structural view of a swirler in accordance with another embodiment;
FIG. 13 is a sectional view in elevation of another embodiment;
FIG. 14 is another cross-sectional view of another embodiment in another direction.
The nozzle assembly comprises a double swirl nozzle 1, a nozzle holder 11, a first stepped hole 111, a second stepped hole 112, an inner flow tube 12, a first gap 121, a swirl generator 13, an inner swirler 14, an installation hole 141, a straight tube section 142, a tapered section 143, an inner swirl nozzle 144, an outer swirler 15, a second guide hole 151, a first guide hole 16, a first guide passage 17, a second guide passage 18, a threaded rod 19, a second gap 191, a lance 2, an inner sleeve 21, an outer sleeve 22, a first inner swirl passage 23, a first outer swirl passage 24, an access holder 3, a first gas inlet 31, a second gas inlet 32, and a liquid inlet 33.
Detailed Description
The invention is further explained below with reference to the drawings and the specific embodiments.
Referring to fig. 1 to 4: a double-cyclone three-flow spray gun comprises an access seat 3, a gun rod 2 and a double-cyclone nozzle 1, wherein one end of the gun rod 2 is communicated with the access seat 3, and the other end of the gun rod is communicated with the double-cyclone nozzle 1. The gun shaft 2 is provided with a first inner circulation path 23 and a first outer circulation path 24 which are not communicated with each other. The liquid inlet 33, the first gas inlet 31 and the second gas inlet 32 are provided in the inlet socket 3, the liquid inlet 33 and the first gas inlet 31 communicate with the first inner circulation path 23, and the second gas inlet 32 communicates with the first outer circulation path 24. The double swirl nozzle 1 is provided with a second inner swirl passage and a second outer swirl passage which are not communicated with each other, an inner swirl chamber and an outer swirl chamber; one end of the second inner cyclone passage is communicated with the first inner cyclone passage 23, and the other end is communicated with the inner cyclone chamber; one end of the second outer swirl passage communicates with the first outer swirl passage 24, and the other end communicates with the outer swirl chamber. An outer swirl nozzle is arranged at the outlet of the outer swirl chamber, an inner swirl nozzle is arranged at the outlet of the inner swirl chamber, the outer swirl nozzle is positioned under the inner swirl chamber nozzle, and liquid drops sprayed from the inner swirl chamber are atomized again.
The present invention is to provide a first inner circulation path 23 and a first outer circulation path 24 which are not communicated with each other on a gun shaft 2, and a liquid inlet 33, a first gas inlet 31 and a second gas inlet 32 on an inlet holder 3. The atomized liquid stream is introduced through the liquid inlet 33, the first compressed air stream is introduced through the first gas inlet 31, and the second compressed air stream is introduced through the second gas inlet 32. The atomized liquid stream, the first compressed air stream, and the second compressed air stream may each have their pressure and flow rate controlled, respectively, prior to being switched in. Atomized liquid flow and first compressed air flow introduced from the first gas inlet are mixed in the first inner cyclone passage, then enter the inner cyclone chamber through the second inner cyclone passage, and are sprayed out by the nozzle of the inner cyclone chamber to be atomized for the first time, so that a conical fog curtain is formed. The second compressed air introduced from the second gas inlet flows through the first outer cyclone passage and the second outer cyclone passage to enter the outer cyclone chamber, liquid drops sprayed out of the inner cyclone chamber are atomized again, the liquid drops sprayed out of the inner cyclone chamber are thinner through secondary atomization, and under the condition of proper pressure, a mist curtain sprayed out of a nozzle of the outer cyclone chamber is a conical mist curtain with a large atomization angle, so that the spray gun is very suitable for a fluidized bed granulating dryer, and the defects that a spray gun can only spray a solid conical mist curtain with a small atomization angle and the size of the liquid drops is uneven in the prior art are overcome.
In one embodiment, the gun rod comprises an inner sleeve 21 and an outer sleeve 22, the inner sleeve 21 and the outer sleeve 22 are both hollow tube structures with two open ends, the outer diameter of the inner sleeve 21 is smaller than the inner diameter of the outer sleeve 22, and the inner sleeve 21 is arranged in the outer sleeve 22. The inner conduit of the inner sleeve 21 is a first inner swirl passage 23, and the passage formed between the outer wall of the inner sleeve 21 and the inner wall of the outer sleeve 22 is a first outer swirl passage 24. The first inner swirl passage 23 is coaxial with the first outer swirl passage 24.
The length of the inner sleeve 21 is greater than that of the outer sleeve 22, the inner sleeve 21 is arranged in the outer sleeve 22, two ends of the inner sleeve 21 extend out of the outer sleeve 22, and two ends of the inner sleeve 21 and two ends of the outer sleeve 22 are respectively and correspondingly connected with the access seat 3 and the double-swirl nozzle 1.
In one embodiment, the liquid inlet 33 is provided at the end of the access socket 3, along the axial direction of the access socket 3, and the liquid inlet 33 communicates with the first inner rotational flow passage 23 provided in the inner sleeve 21. The first gas inlet 31 and the second gas inlet 32 are both arranged on the side wall of the access seat 3, and the first gas inlet 31 and the second gas inlet 31 are opposite in opening direction and are not communicated with each other. The first gas inlet 31 communicates with the first inner swirl flow passage 23 and the second gas inlet 32 communicates with the first outer swirl flow passage 24.
Since the liquid inlet 33 is disposed at the end of the connection seat 3, the first gas inlet 31 is disposed on the sidewall of the connection seat 3, the liquid inlet 33 and the first gas inlet 31 are communicated with the first internal rotation path 23 at the outlet end, the liquid inlet 33 and the first gas inlet 31 form a vertical included angle, the liquid flow introduced from the liquid inlet 33 is driven by the first compressed air flow introduced from the first gas inlet 31 at the inlet of the first internal rotation path 23, and forms a rotational flow under the action of the inner wall of the first internal rotation path 23. The liquid flow and the first compressed air flow are mixed for the first time in the first inner cyclone flow passage 23, a gas-liquid flow formed by mixing the liquid flow and the first compressed air flow is formed in the first inner cyclone flow passage 23, and the liquid flow is driven by the compressed air flow to complete the primary atomization. The gas-liquid stream enters the inner cyclone chamber from the first inner cyclone passage 23 through the second inner cyclone passage and is ejected from the nozzle of the inner cyclone chamber.
Because the second gas inlet 32 is arranged on the side wall of the access seat 3, the second compressed air flow introduced from the second gas inlet 32 enters the first outer cyclone passage 24 and then enters the outer cyclone chamber through the first outer cyclone passage and the second outer cyclone passage to form a cyclone, and the gas-liquid flow sprayed from the nozzle of the inner cyclone chamber is atomized again. The atomization effect of the liquid flow atomized twice is very good, and the liquid can be stabilized in a good atomization state regardless of the flow rate of the liquid. And the atomization effect can be conveniently adjusted according to the requirements of customers. Because of the advantages of large and uniform atomization angle and conical fog curtain, the atomization effect is ideal when the spray gun is used in pharmaceutical, food and chemical granulation, pelleting and coating equipment, and the spray gun is required by the equipment, the production efficiency and the product quality can be greatly improved.
Referring to fig. 4, 5 and 6, in one embodiment, the dual swozzle 1 includes a nozzle holder 11, an inner flow tube 12, an inner swirler 14, a swirl generating device and an outer swirler 15. The side wall of the nozzle seat 11 is provided with a first stepped hole 111, and the inner diameter of the first stepped hole 111 is reduced in a step shape from outside to inside. A second stepped hole 112 is formed in the bottom (the side facing the ground in the use state) of the nozzle holder 11, and the inner diameter of the second stepped hole 112 is reduced in a stepped manner from bottom to top. The first stepped hole 111 is provided with a first communicating portion and a second communicating portion, the second stepped hole 112 is provided with a third communicating portion and a fourth communicating portion, the first communicating portion is communicated with the third communicating portion, and the second communicating portion is communicated with the fourth communicating portion. The inner flow tube 12, the inner swirler 14, the swirl imparting means and the outer swirler 15 are all mounted within the second stepped bore 112. The inner flow tube 12 is a hollow tube structure with two open ends, and its inner pipeline is a second inner circulation path. An inner cyclone cavity is formed in the inner cyclone 14, an outer cyclone cavity is formed in the outer cyclone 15, the outer cyclone cavity is matched with the inner cyclone 14, the transverse size of the outer cyclone cavity is larger than that of the corresponding part of the inner cyclone 14, an inner cyclone nozzle is arranged on the inner cyclone 14, and an outer cyclone nozzle opposite to the inner cyclone nozzle is arranged on the outer cyclone 15. The inner flow pipe 12 is vertically installed in the second stepped hole 112, the upper end thereof is communicated with the first inner swirling flow channel 23 through the first communicating portion and the third communicating portion, the lower end thereof is inserted into the inner swirling flow cavity of the inner swirler 14 and is communicated with a swirling flow generating device installed in the inner swirling flow cavity, and the swirling flow generating device is used for generating swirling flow of the gas-liquid flow introduced from the second inner swirling flow channel and spraying the gas-liquid flow out of the inner swirling flow nozzle.
Referring to fig. 4: in one embodiment, the swirling flow generating device is a swirling flow generator, one end of the swirling flow generator 13 is provided with a mounting hole a, the middle part of the swirling flow generator 13 is provided with a first flow guide channel 17 transversely penetrating through, and the first flow guide channel 17 is communicated with the mounting hole a; the other end of the swirl generator 13 is provided with a swirl generating chamber, the swirl generating chamber is provided with two first flow guide holes 16 penetrating through the side wall of the swirl generating chamber, and the two first flow guide holes 16 are rotationally symmetrical.
The inner cyclone chamber of the inner cyclone 14 comprises a mounting section, a conical section and a nozzle which are communicated in sequence. The swirl generator 13 is installed at the installation section of the inner swirl chamber, and the lower end of the inner flow pipe 12 is installed in the installation hole a of the swirl generator 13 and communicated with the first flow guide channel 17 through the installation hole a. The second diversion channel 18 is formed by a gap between the vortex generator 13 and the installation section, the vortex generation chamber is opposite to the conical section of the inner vortex cavity and communicated with the conical section, and the vortex generator, the conical section and the nozzle are sequentially communicated to form the inner vortex chamber. Is arranged in an outer cyclone chamber of an outer cyclone 15 along the inner cyclone 14, and an outer cyclone chamber is formed in a gap between the outer wall of the inner cyclone 14 and the inner wall of the outer cyclone 15. The gaps between the second stepped hole 112 and the inner flow pipe 12, the swirl generator 13, the inner swirler 14, and the outer swirler 15 are a second outer swirl flow path, and communicate with the first outer swirl flow path 24 through a fourth communication portion and a second communication portion.
The gas-liquid flow introduced from the first inner cyclone passage 23 enters the first flow guide passage 17 and the second flow guide passage 18 from the second inner cyclone passage, then enters the cyclone generation chamber from the first flow guide hole 16 to form a cyclone, and then is ejected from the conical section and the nozzle. The compressed air flow introduced from the first outer cyclone passage enters the outer cyclone chamber from the second outer cyclone passage, and atomized liquid drops sprayed from the inner cyclone chamber are sprayed out after being atomized again.
Referring to fig. 5 to 14: in another embodiment, different from the above embodiments, the bottom of the inner flow tube 12 is provided with two first notches 121, and the two first notches 121 are symmetrically arranged. The rotational flow generating device is a threaded rod 19, the threaded rod 19 is provided with a downward external thread, and the top of the threaded rod 19 is provided with a second notch 191 corresponding to the first notch 121; the profile height of the threaded bar 19 is 1 mm. An inner cyclone cavity with two open ends is arranged in the inner cyclone 14, the inner cyclone cavity comprises a mounting hole 141, a straight cylinder section 142, a conical section 143 and an inner cyclone nozzle 144, the mounting hole 141 is positioned above the inner cyclone chamber, and the transverse dimension of the mounting hole 141 is larger than that of the straight cylinder section 142; the transverse dimension of the tapered section 143 decreases from top to bottom. An outer cyclone cavity with two open ends is arranged in the outer cyclone 15, the shape of the outer cyclone cavity is matched with that of the inner cyclone 14, and the transverse dimension of the outer cyclone cavity is smaller than that of the corresponding position of the inner cyclone 14. The outer swirler 15 is provided with two second guiding holes 151 penetrating through a side wall thereof, and the two second guiding holes 151 are rotationally symmetric. The inner flow pipe 12 is vertically installed in the second stepped hole 112, and has an upper end communicating with the first inner cyclone passage and a lower end inserted into the inner cyclone 14 and fixed in the installation hole 141. The threaded rod 19 is arranged in the straight cylinder section 142, the size of the threaded rod is matched with that of the straight cylinder section 142 of the inner cyclone 14, the second notch 191 of the threaded rod 19 corresponds to the first notch 121 of the inner flow pipe 12, and the tooth socket, the conical section 143 and the inner cyclone nozzle 144 of the threaded rod 19 are communicated in sequence to form an inner cyclone chamber. The inner swirler 14 is disposed within an inner swirl chamber of the outer swirler 15, forming an outer swirl chamber between an outer wall of the inner swirler 14 and an inner wall of the outer swirler 15. The second stepped hole 112 forms a second outer swirling flow path with the gaps between the inner flow pipe 12, the inner swirler 14, and the outer swirler 15.
The gas-liquid flow is introduced from the first inner rotational flow passage and the second inner rotational flow passage, introduced into the tooth socket of the threaded rod through the gap of the inner flow pipe, flows downwards along the tooth socket to form rotational flow, and is sprayed out through the conical section and the nozzle; compressed air is introduced from the first outer cyclone passage and the second outer cyclone passage, enters the outer cyclone chamber through the second flow guide hole 151, atomizes atomized liquid drops sprayed by the nozzle again and then sprays the atomized liquid drops.
See fig. 5 and 6: in an exemplary embodiment, the first stepped hole 111 is formed in a sidewall of the nozzle holder 11, the first stepped hole 111 includes, from outside to inside, a first hole portion, a second hole portion, a third hole portion, and a fourth hole portion, inner diameters of the first hole portion, the second hole portion, the third hole portion, and the fourth hole portion decrease in a stepped manner, the first hole portion, the second hole portion, and the third hole portion are coaxially disposed, and the fourth hole portion is eccentrically disposed with respect to the third hole portion. The second stepped hole is formed in the bottom of the nozzle seat (the side facing the ground in the use state), and sequentially comprises a fifth hole portion, a sixth hole portion, a seventh hole portion, an eighth hole portion and a ninth hole portion which are coaxially arranged from bottom to top, the ninth hole portion is communicated with the fourth hole portion, and the second hole portion is communicated with the seventh hole portion. The end part of the inner sleeve is positioned in the fourth hole part and is opposite to the fifth hole part, and the end part of the outer sleeve is positioned in the second hole part. The interior flow tube is vertical to be installed in second ladder hole, and the upper end of interior flow tube is located eighth hole portion and just to ninth hole portion, and the internal diameter and the ninth hole portion aperture phase-match of interior flow tube. The inner swirler and the outer swirler are located at the fifth hole portion and the sixth hole portion of the second stepped hole. And a second outer rotational flow passage is formed by a gap between the seventh hole part and the inner flow pipe, a gap between the sixth hole part and the inner rotational flow device and the outer rotational flow device, and a gap between the fifth hole part and the outer rotational flow device.
The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.
Claims (10)
1. A double-cyclone three-flow spray gun is characterized by comprising an access seat, a gun rod and a double-cyclone nozzle, wherein one end of the gun rod is communicated with the access seat, and the other end of the gun rod is communicated with the double-cyclone nozzle; the gun rod is provided with a first inner circulation path and a first outer circulation path which are not communicated with each other; the liquid inlet, the first gas inlet and the second gas inlet are arranged on the access seat, the liquid inlet and the first gas inlet are communicated with the first inner cyclone flow passage, and the second gas inlet is communicated with the first outer cyclone flow passage; the double-swirl nozzle is provided with a second inner swirl passage, a second outer swirl passage, an inner swirl chamber and an outer swirl chamber; one end of the second inner cyclone passage is communicated with the first inner cyclone passage, and the other end is communicated with the inner cyclone chamber; one end of the second outer rotational flow passage is communicated with the first outer rotational flow passage, and the other end of the second outer rotational flow passage is communicated with the outer rotational flow chamber; the outlet of the outer cyclone chamber is provided with an outer cyclone nozzle, the outlet of the inner cyclone chamber is provided with an inner cyclone nozzle, and the outer cyclone nozzle is positioned under the inner cyclone nozzle.
2. The dual-swirl three-flow spray gun according to claim 1, wherein the gun rod comprises an inner sleeve and an outer sleeve, the inner sleeve and the outer sleeve are both hollow pipe structures with openings at two ends, the outer diameter of the inner sleeve is smaller than the inner diameter of the outer sleeve, and the inner sleeve is arranged in the outer sleeve; the inner pipeline of the inner sleeve is a first inner cyclone passage, and a passage formed between the outer wall of the inner sleeve and the inner wall of the outer sleeve is a first outer cyclone passage.
3. The dual swirl three-flow lance of claim 2 wherein the first inner swirl passage is coaxial with the first outer swirl passage.
4. A dual swirl three-flow lance according to claim 2 wherein the length of the inner sleeve is greater than the length of the outer sleeve, the inner sleeve being disposed within the outer sleeve with its ends projecting out of the outer sleeve.
5. A dual swirl tri-flow spray gun according to claim 1 wherein the liquid inlet is provided at the end of the access socket, in the direction of the axis of the access socket; the first gas inlet and the second gas inlet are both arranged on the side wall of the access seat, and the first gas inlet and the second gas inlet are opposite in opening direction and are not communicated with each other; the liquid inlet and the first gas inlet are communicated with the first inner circulation path, and the second gas inlet is communicated with the first outer circulation path.
6. The dual swirl three-flow lance of claim 1 wherein the dual swirl nozzle comprises a nozzle block, an inner flow tube, an inner swirler, a swirl generating device, and an outer swirler; the side wall of the nozzle seat is provided with a first stepped hole, and the inner diameter of the first stepped hole is reduced in a stepped manner from outside to inside; the bottom of the nozzle seat is provided with a second stepped hole, and the inner diameter of the second stepped hole is reduced in a stepped manner from bottom to top; the first stepped hole is communicated with the second stepped hole; the inner flow pipe, the inner swirler, the rotational flow generating device and the outer swirler are all arranged in the second stepped hole; an inner cyclone cavity is arranged in the inner cyclone, an outer cyclone cavity is arranged in the outer cyclone, and the inner cyclone is arranged in the outer cyclone cavity of the outer cyclone; the cyclone generating device is arranged in an inner cyclone cavity of the inner cyclone, the upper end of the inner flow pipe is communicated with the first inner cyclone passage, the lower end of the inner flow pipe is arranged in the inner cyclone cavity of the inner cyclone, and the lower end of the inner flow pipe is communicated with the inner cyclone; the inner pipeline of the inner flow pipe is a second inner cyclone passage, an inner cyclone chamber is formed by the cyclone generating device and the inner cyclone cavity of the inner cyclone, a second outer cyclone passage is formed by the second stepped hole and the gaps among the inner flow pipe, the cyclone generator, the inner cyclone and the outer cyclone, and an outer cyclone chamber is formed by the gap between the inner cyclone and the outer cyclone.
7. The double-swirl three-flow spray gun according to claim 6, wherein the swirl generating device is a swirl generator, one end of the swirl generator is provided with a mounting hole a, the middle part of the swirl generator is provided with a first flow guide channel which transversely penetrates through the swirl generator, and the first flow guide channel is communicated with the mounting hole a; the other end of the swirl generator is provided with a swirl generating chamber, and the swirl generating chamber is provided with a first flow guide hole penetrating through the side wall of the swirl generating chamber.
8. The dual cyclone tri-flow lance of claim 7 wherein the inner cyclone chamber of the inner cyclone comprises a mounting section, a conical section and a nozzle in sequential communication; the swirl generator is arranged at the mounting section of the inner swirl cavity, and the lower end of the inner swirl tube is arranged in a mounting hole a of the swirl generator; the second diversion channel is formed in a gap between the vortex generator and the installation section, the vortex generation chamber is opposite to the conical section of the inner vortex cavity and communicated with the conical section, and the vortex generation chamber, the conical section and the nozzle are sequentially communicated to form the inner vortex chamber.
9. The dual-cyclone three-flow spray gun according to claim 6, wherein the bottom of the inner flow tube is provided with two first gaps, and the two first gaps are symmetrically arranged; the rotational flow generating device is a threaded rod, the threaded rod is provided with a downward external thread, and the top of the threaded rod is provided with a second notch corresponding to the first notch; the threaded rod is arranged in the inner cyclone, the lower end of the inner flow pipe is inserted into the inner cyclone, and the first notch is opposite to the second notch.
10. The dual cyclone three-flow spray gun according to claim 9 wherein the outer cyclone has two second holes through its sidewall, and the two second holes are rotationally symmetric.
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| CN201720933798 | 2017-07-30 | ||
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| CN109847967A (en) * | 2019-03-07 | 2019-06-07 | 哈尔滨理工大学 | A kind of three Fluid sprayer spray head of exterior mixing |
| CN112450411B (en) * | 2020-11-10 | 2023-06-06 | 浙江省海洋水产研究所 | Method for preparing seasoning base material by using portunus trituberculatus cooking liquor |
| CN113428920A (en) * | 2021-07-22 | 2021-09-24 | 成都市蜀科科技有限责任公司 | Energy-saving high-salinity wastewater drying and curing process and device |
| CN115156250A (en) * | 2022-06-17 | 2022-10-11 | 四川琳宸生物能源科技有限公司 | Kitchen waste salt reducing device |
| CN115282730A (en) * | 2022-07-19 | 2022-11-04 | 华中科技大学 | Rotational flow spray gun for solid-wet fluid and application thereof |
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Effective date of registration: 20210715 Address after: 401519 community 2, Yankou village, Hechuan Industrial Park, Chongqing Patentee after: Chongqing Jiedu Technology Co.,Ltd. Address before: 457000 No.1 courtyard outside Wuyi Road, Hualong District, Puyang City, Henan Province Patentee before: Li Xianfu |