CN109865444B - Sandwich type weak flow fluctuation on-line mixing device - Google Patents
Sandwich type weak flow fluctuation on-line mixing device Download PDFInfo
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- CN109865444B CN109865444B CN201910268760.3A CN201910268760A CN109865444B CN 109865444 B CN109865444 B CN 109865444B CN 201910268760 A CN201910268760 A CN 201910268760A CN 109865444 B CN109865444 B CN 109865444B
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- 239000003814 drug Substances 0.000 claims abstract description 234
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000006185 dispersion Substances 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 115
- 239000007924 injection Substances 0.000 claims description 115
- 229940079593 drug Drugs 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000000575 pesticide Substances 0.000 description 58
- 239000010410 layer Substances 0.000 description 47
- 239000007788 liquid Substances 0.000 description 17
- 230000010349 pulsation Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000003068 static effect Effects 0.000 description 7
- 239000011229 interlayer Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012377 drug delivery Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4312—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor having different kinds of baffles, e.g. plates alternating with screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4313—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor comprising a plurality of stacked ducts having their axes parallel to the tube axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4317—Profiled elements, e.g. profiled blades, bars, pillars, columns or chevrons
- B01F25/43172—Profiles, pillars, chevrons, i.e. long elements having a polygonal cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4319—Tubular elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431974—Support members, e.g. tubular collars, with projecting baffles fitted inside the mixing tube or adjacent to the inner wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/04—Mixing biocidal, pesticidal or herbicidal ingredients used in agriculture or horticulture, e.g. for spraying
Abstract
The invention discloses a sandwich type weak flow fluctuation on-line mixing device which comprises a water inlet cylinder, a medicine mixer outer cylinder, a medicine inlet, a turbulence generator and a water outlet cylinder which are sequentially connected in a threaded manner, wherein the water inlet cylinder is provided with a water inlet which is connected with a water inlet pipe in a threaded manner, the water outlet cylinder is provided with a solution outlet which is connected with a spray head or a water pipe in a threaded manner, a support frame, a dispersion type medicine penetrating device and a surrounding type medicine injector are arranged in the medicine mixer outer cylinder, the dispersion type medicine penetrating device is sleeved outside the surrounding type medicine injector and is in interference fit with the surrounding type medicine injector, the support frame is respectively connected with the medicine mixer outer cylinder and the dispersion type medicine penetrating device in a clamping manner, and the medicine inlet is connected with the surrounding type medicine injector through a rubber pipe.
Description
Technical Field
The invention relates to an online medicine mixing device capable of effectively reducing fluctuation of mixing concentration of liquid medicine, in particular to a sandwich type weak flow fluctuation online mixing device applied to an online pesticide mixing and spraying system.
Background
In order to ensure the accuracy of pesticide deposition distribution required by precise application, the concentration instability of the mixed solution caused by fluctuation of the injection flow is required to be reduced as much as possible while the on-line mixing uniformity of the pesticide and the water is improved. The efficient on-line medicine mixer can timely and uniformly mix the liquid medicine, and meanwhile, more current-carrying energy loss can be avoided.
For a direct nozzle injection type pesticide online mixed spraying system, a single nozzle needs to be provided with a corresponding mixing device to improve the uniformity of liquid medicine. Normally, the ratio of pesticide to water is low, so the amount of solute (pesticide) is small relative to the solvent (water). The pesticide on-line mixed spraying system generally adopts a volumetric metering pump for directly feeding pesticide or an electromagnetic valve for indirectly feeding pesticide. For direct drug supply of a metering pump, the condition of lower rotating speed exists during low-flow drug supply; for indirect medicine supply of the electromagnetic valve, the medicine supply is discontinuous due to the duty ratio effect in a single pulse output period; therefore, in the pesticide supply system, the flow fluctuation is hardly avoided. The existing liquid medicine on-line mixing device also fails to solve the problem of instability of the concentration of the mixed liquid caused by fluctuation of the medicine supply flow. In addition, the existing pesticide online mixing device is mostly applied to occasions with larger current carrying (water) flow, for example, circular tube jet flow is often adopted, and a spiral flow generation promoting mode is often adopted to promote mixing, however, in practical application of a pesticide mixer, particularly in a direct nozzle injection type pesticide online mixing spraying system, the single nozzle flow is sometimes small, turbulence development is insufficient under the condition of small Reynolds number, and the effect of adopting the spiral flow mixing mode and the circular tube jet flow mixing mode is not ideal.
For example, chinese patent, application number 200910101373.7, invention name: the synchronous injection type medicine mixer for the sprayer is characterized in that the device and the like are provided with independent systems for supplying pesticide and mixing water, negative pressure medicine suction and spiral blade promotion mixing are realized by adopting jet flow, and the mixing effect is reduced along with flow reduction, so that the system is difficult to ensure on-line mixing uniformity under the condition of smaller flow, and the medicine mixer does not consider negative influence of fluctuation of medicine injection flow on mixing. For example, chinese patent, application number 201610220373.9, invention name: a composite static mixer is composed of liquid inlet pipe, blades, liquid inlet pipe, assistant, blade rolling fluid, and spiral blades for promoting mixing. Other static mixing devices, such as chinese patent 201610918892.2, title: static mixer, chinese patent 201710832962.7, title of invention: the static jet mixer adopts a mode of arranging a special static mixing device structure behind an inlet and mixing a plurality of component substances, so that a large energy loss is inevitably caused, and the device also does not consider the problem of fluctuation of injection flow. For example, chinese patent 201080010750.7, the invention name is: the coaxial compact static mixer adopts a cascade static mixing device formed by assembling a plurality of coaxial mixing stages, divides an integral flow passage into small flow passages, and mixes the small flow passages through separation and recombination of fluid flows.
Although negative pressure type drug inhalation and compressed gas drug delivery can eliminate flow pulsation, the application of the related invention still has a lot of limitations, such as difficulty in ensuring pressure stability and accuracy of drug delivery rate. Such as chinese patent, application number: 201510079179.9, name of invention: a movable medicine mixer is composed of a medicine bag, a medicine mixing unit for sucking medicine liquid, a medicine supplying unit for supplying medicine liquid, a medicine mixing unit for mixing medicine liquid, and a spiral flow generator for generating spiral flow. For example, chinese patent, application number: 201510083070.2, name: a fixed medicine mixer is similar to the device which can not overcome the fluctuation of medicine injection flow and can not solve the problem of mixing uniformity under the condition of low current (water) carrying flow.
Some pulsation damping technologies commonly used in fluid damping systems, such as small-deflection deformed thin plates, or porous plates, or cavity type dampers, are often suitable for fluid pressure suppression at medium-high frequencies, have an insignificant effect on weakening flow fluctuation, and are more bulky. For example, chinese patent, application number 201610115344.6, patent name: a flow pulsation attenuator with adjustable frequency is characterized in that pressure and flow pulsation are attenuated by a spring mass system, the structure is complex, the operation is difficult, and the miniaturization is difficult. For example, in chinese patent, application number 201610311919.1, patent name: a full-band hydraulic system pressure pulsation suppression method adopts an elastic wall to reduce high-frequency pressure pulsation and adopts an inserted series-parallel H-shaped filter to reduce frequency vibration. For example, chinese patent, application number: 201410026386.3, patent name: the device adopts an energy accumulator and a pore plate to avoid pressure pulsation, and high-pressure gas is needed to charge the energy accumulator during use, so that the system is difficult to be applied to the fluctuation suppression of the injection flow in a small-flow on-line mixing system.
In a word, the online mixing device capable of efficiently promoting online uniform mixing of pesticides and water, reducing fluctuation of drug injection flow and improving stability of outflow concentration of liquid medicine mixed solution is not only suitable for the condition of high current carrying flow, but also suitable for the condition of low current carrying flow in the current online mixing field.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide an online medicine mixing device which can obviously improve the online mixing uniformity of liquid medicine and weaken the fluctuation of medicine injection flow so as to reduce the instability of the mixing concentration of the liquid medicine. The device is especially good at on-line medicine mixing under the condition of insufficient current-carrying turbulence development, and has the advantages of good mixing effect and wide applicability.
The technical scheme of the invention is as follows: the interlayer type weak flow fluctuation on-line mixing device comprises a water inlet cylinder, a medicine mixer outer cylinder, a medicine inlet, a turbulence generator and a water outlet cylinder which are sequentially connected in a threaded manner, wherein the water inlet cylinder is provided with a water inlet which is in threaded connection with a water inlet pipe, the water outlet cylinder is provided with a solution outlet which is in threaded connection with a spray head or a water pipe, a support frame, a dispersion type medicine penetrating device and a surrounding type medicine injector are arranged in the medicine mixer outer cylinder, the dispersion type medicine penetrating device is sleeved outside the surrounding type medicine injector and is in interference fit with the surrounding type medicine injector, the support frame is respectively clamped with the medicine mixer outer cylinder and the dispersion type medicine penetrating device, and the medicine inlet is connected with the surrounding type medicine injector through a rubber pipe;
further, the dispersion type medicine permeation device comprises a medicine permeation layer with a concentric circle cross section formed by sequentially sleeving the medicine permeation layer from large to small in diameter, the medicine permeation layer comprises a bushing and a medicine injection film, the bushing comprises a bushing inner layer and a bushing outer layer which are sequentially sleeved from large to small in diameter, one ends of the bushing inner layer and the bushing outer layer are fixedly connected to form a wedge-shaped end part clamped with a support frame, the other ends of the bushing inner layer and the bushing outer layer are provided with bushing end parts in interference fit with a surrounding type medicine injector, a bushing inner cavity is formed between the bushing inner layer and the bushing outer layer, and a bushing hole is formed in the bushing; the injection film comprises an injection film inner film and an injection film outer film which are of hollow annular structures, one ends of the injection film inner film and the injection film outer film are fixedly connected, and the other ends of the injection film inner film and the injection film outer film are respectively provided with a corresponding outer end part and an inner end part, so that an injection film inner cavity is formed by the injection film inner film and the injection film outer film; the medicine injection film is arranged in the inner cavity of the bushing, the outer end part of the medicine injection film bypasses the end part of the bushing outer layer and then turns over to be attached to the outer wall of the end part of the bushing outer layer, the inner end part of the medicine injection film bypasses the end part of the bushing inner layer and then turns over to be attached to the inner wall of the end part of the bushing inner layer, and micropores are formed in the medicine injection film;
further, the surrounding type medicine injector comprises an annular end cover in interference fit with the dispersing type medicine permeation device, a medicine injection main path fixedly connected with the annular end cover, and annular branches equidistantly arranged on the medicine injection main path and connected with the medicine injection main path, wherein the annular branches are provided with uniformly distributed medicine injection holes, the cross section of the annular end cover is U-shaped, and a medicine injection inlet is formed in the end, close to the annular end cover, of the medicine injection main path;
further, the medicine feeder comprises a medicine feeding outer cylinder, medicine feeding pipe orifices which are arranged at equal intervals on the circumference of the medicine feeding outer cylinder, a medicine feeding main pipe which is connected with the medicine feeding pipe orifices, an annular pipeline which is connected with the free end of the medicine feeding main pipe, and a medicine feeding branch pipe which is arranged on the medicine feeding main pipe and is connected with a medicine injection inlet;
further, the vortex generator comprises a generator outer cylinder, a first layer of guide vanes and a second layer of guide vanes which are arranged in the outer cylinder at intervals, wherein the generator outer cylinder is of a hollow tubular structure, the guide vanes are fixedly connected with the inner wall of the generator outer cylinder, the guide vanes are circumferentially and equidistantly arranged on the inner wall of the generator outer cylinder, an included angle between every two adjacent first guide vanes is 120 degrees, an included angle between every two adjacent second guide vanes is 120 degrees, and reinforcing ribs fixedly connected with the inner wall of the generator outer cylinder are arranged on the guide vanes.
Compared with the prior art, the invention has the beneficial effects that: the interlayer type weak flow fluctuation on-line mixing device is provided with the layered dispersion type medicine mixing device, so that the problem that the mixing effect is not ideal under the conditions of low inflow velocity and weak turbulence effect of a common medicine mixer is solved, pesticides can permeate into different positions on the inflow cross section, and the pesticides are uniformly distributed on the water flow cross section; the medicine injection film is arranged in the dispersion type medicine mixing device, so that the energy storage effect is achieved, medicine injection pulsation is reduced, medicine injection inflow is stable, the concentration instability of mixed liquid is reduced, and the on-line pesticide mixing distribution effect is obviously improved; the micropores on the injection film realize the penetration injection of the pesticide, so that the pulsation is further reduced, and the uniformity of pesticide mixing is further ensured; meanwhile, the interlayer type weak flow fluctuation on-line mixing device is provided with the turbulence generator, so that pesticide mixed liquid flowing out of the dispersion type pesticide mixing device is further mixed, and the uniformity of pesticide mixing is further improved; the interlayer type weak flow fluctuation on-line mixing device is provided with the medicine feeder with a plurality of medicine feeding pipe orifices, so that the on-line injection of single pesticides is realized, and the on-line injection of multiple pesticides is also realized; the components of the interlayer type weak flow fluctuation on-line mixing device are easy to manufacture into standardized parts in series, and the device is convenient to popularize and use in the future.
Drawings
FIG. 1 is a schematic view of the structure of the present invention
FIG. 2 is a cross-sectional view of the present invention
FIG. 3 is an enlarged schematic view of the portion A of FIG. 2
FIG. 4 is an enlarged schematic view of a portion B of FIG. 2
FIG. 5 is a schematic view of a support frame according to the present invention
FIG. 6 is a cross-sectional view taken along the C-C plane in FIG. 2
FIG. 7 is a schematic structural view of an outer cylinder of a mixer according to the present invention
FIG. 8 is a schematic view of the bushing of the present invention
FIG. 9 is a schematic structural view of a drug-injecting film according to the present invention
FIG. 10 is a schematic view of the structure of the surrounding type injector of the present invention
FIG. 11 is a schematic view of the structure of the medicine feeder of the present invention
FIG. 12 is a schematic view of a turbulence generator according to the present invention
Detailed Description
As shown in fig. 1 and 2, the on-line mixing device with small flow fluctuation comprises a water inlet cylinder 1, a front support frame 2, a medicine mixer outer cylinder 3, a dispersion medicine seepage device 4, a surrounding medicine injector 5, a medicine inlet 6, a turbulence generator 7 and a water outlet cylinder 8, wherein the water inlet cylinder 1, the medicine mixer outer cylinder 3, the medicine inlet 6, the turbulence generator 7 and the water outlet cylinder 8 are in threaded connection in sequence;
the water inlet cylinder 1 is of a funnel-shaped structure, the inner wall of the large opening end of the water inlet cylinder 1 is provided with an internal thread in threaded connection with the outer cylinder 3 of the medicine mixer, the small opening end is provided with a water inlet in threaded connection with the water inlet pipe, and the inner wall of the water inlet is provided with an internal thread;
the water outlet cylinder 8 is of a funnel-shaped structure, the inner wall of the large opening end of the water outlet cylinder 8 is provided with an internal thread in threaded connection with the outer cylinder 3 of the medicine mixer, the small opening end is provided with a solution outlet in threaded connection with a spray head or a water pipe, and the inner wall of the solution outlet is provided with an internal thread;
as shown in fig. 5, the supporting frame 2 comprises 3 supporting rods fixedly connected with one another, an included angle between every two adjacent supporting rods is 120 degrees, an airfoil surface 21 with an acute angle at the tip is arranged on the side surface of the supporting rod close to the water inlet barrel 1, a wedge-shaped opening 23 clamped with the dispersive drug permeation device 4 is arranged at the position corresponding to the side surface of the drug mixer outer barrel 3 and the dispersive drug permeation device 4, a central tip 22 is formed at the joint of the airfoil surfaces 21 of the supporting rods, and resistance generated when water flows through the airfoil surface 21 and the central tip 22 can be reduced;
as shown in fig. 7, the outer barrel 3 of the medicine mixer is of a hollow tubular structure, the end, close to the water inlet barrel 1, of the outer wall of the outer barrel 3 of the medicine mixer is provided with external threads matched with the internal threads of the water inlet barrel 1 and rectangular openings 31 clamped with the support frame 2, the end, close to the medicine inlet barrel 6, is provided with external threads matched with the medicine inlet barrel 6, the rectangular openings 31 are equidistantly arranged on the outer barrel 3 of the medicine mixer, an included angle between every two adjacent rectangular openings 31 is 120 degrees, the support frame 2 is clamped with the outer barrel 3 of the medicine mixer through the rectangular openings 31 to realize coaxial arrangement with the outer barrel 3 of the medicine mixer, and the water inlet barrel 1 and the screw threads of the outer barrel 3 of the medicine mixer are connected with the support frame 2 in an axial fixed manner; as shown in fig. 6, a dispersive medicine-penetrating device 4 and a surrounding medicine-injecting device 5 are arranged in the medicine-mixing device outer cylinder 3, and the dispersive medicine-penetrating device 4 is sleeved outside the surrounding medicine-injecting device 5;
the dispersing type medicine permeation device 4 comprises medicine permeation layers with concentric circles in cross section and formed by sequentially sleeving the medicine permeation layers from large to small in diameter, annular flow channels are formed between adjacent medicine permeation layers, each medicine permeation layer comprises a bushing with a hollow annular structure and a medicine injection film, as shown in fig. 8, each bushing comprises a bushing inner layer and a bushing outer layer which are sequentially sleeved from large to small in diameter, one ends of each bushing inner layer and each bushing outer layer are fixedly connected to form a wedge-shaped end 41 which is clamped with a wedge-shaped opening 23 on the support frame 2, the other ends of each bushing inner layer and each bushing outer layer are provided with a bushing end 48 which is in interference fit with the surrounding type medicine injector 5, a bushing inner cavity 43 is formed between each bushing inner layer and each bushing outer layer, and bushing holes 42 are formed in each bushing inner layer and each bushing outer layer;
as shown in fig. 9, the injection film comprises an injection film inner film and an injection film outer film which are hollow annular structures, one ends of the injection film inner film and the injection film outer film are fixedly connected, an injection film inner cavity 45 is formed by the injection film inner film and the injection film outer film, an outer end 44 is arranged at the free end of the injection film outer film, and an inner end 46 is arranged at the free end of the injection film inner film; the medicine injection film is arranged in the inner cavity 43 of the bushing, the outer end 44 of the medicine injection film is folded and folded around the bushing end 48 of the bushing outer layer, the folded and folded half outer end 44 is attached to the outer wall of the bushing end 48 of the bushing outer layer, the inner end 46 is folded and folded half around the bushing end 48 of the bushing inner layer, the folded half inner end 46 is attached to the inner wall of the bushing end 48 of the bushing inner layer, and micropores 47 are formed in the medicine injection film;
as shown in fig. 10, the surrounding type medicine injector 5 comprises an annular end cover 51 in interference fit with the end part 48 of the bushing, a medicine injection main path 54 fixedly connected with the annular end cover 51, and annular branch paths 52 equidistantly arranged on the medicine injection main path 54 and connected with the annular end cover 51, wherein medicine injection holes 53 which are uniformly distributed are arranged on the annular branch paths 52, the cross section of the annular end cover 51 is U-shaped, the medicine injection main path 54 is of a tubular structure, penetrates through the arc bottom of the annular end cover 51 and is fixedly connected with the arc bottom, a medicine injection inlet 50 is arranged at the end, close to the annular end cover 51, of the medicine injection main path 54, a sealing end is arranged at the end, close to the annular branch paths 52, and an included angle between the adjacent medicine injection main paths 54 is 120 degrees; the sealing end and the annular branch 52 of the injection main path 54 of the surrounding type injector 5 are arranged in the injection film cavity 45 of the dispersing type medicine permeation device 4, the lining end 48 of the lining in the dispersing type medicine permeation device 4 and the turnover injection film ends (44 and 46) are arranged in the annular end cover 51 of the surrounding type injector 5, and the injection film is fixed through interference fit between the lining end 48 and the annular end cover 51;
as shown in fig. 11, the medicine feeder 6 comprises a medicine feeding outer barrel, a medicine feeding pipe orifice 60 which is equidistantly arranged in the circumferential direction of the medicine feeding outer barrel, a medicine feeding main pipe 61 which is connected with the medicine feeding pipe orifice 60, an annular pipeline 63 which is connected with the free end of the medicine feeding main pipe 61, and a medicine feeding branch pipe 62 which is arranged on the medicine feeding main pipe 61 and is connected with the medicine injection inlet 50, wherein the center of the annular pipeline 63 and the center of the medicine feeding outer barrel are arranged on the same axis, the medicine feeding outer barrel is of a hollow tubular structure, the two ends of the inner wall are respectively provided with an internal thread which is matched with the external thread of the medicine mixer outer barrel 3 and an internal thread which is in threaded connection with the turbulence generator 7, the medicine feeding main pipe 61 is arranged in the medicine feeding outer barrel along the turbulence generator 7 towards the medicine mixer outer barrel 3, the free end of the medicine feeding branch pipe 62 is fixedly connected with the annular pipeline 63, and the external thread which is in the position corresponding to the dispersive medicine seepage device 4 on the medicine feeding main pipe 61 along the turbulence generator 7 towards the medicine mixer outer barrel 3; as shown in fig. 4, the injection inlet 50 and the injection branch pipe 62 are connected through a rubber pipe 64, a long pipe clamp 66 is arranged at the joint of the injection inlet 50 and the injection branch pipe 62 outside the rubber pipe 64 to clamp the joint of the rubber pipe 64, the injection inlet 50 and the injection branch pipe 62, and a short pipe clamp 65 is arranged at the joint of the two ends of the rubber pipe 64, the injection inlet 50 and the injection branch pipe 62 to clamp the rubber pipe 64;
as shown in fig. 12, the turbulence generator 7 comprises a generator outer cylinder, a first layer of guide vanes 71 and a second layer of guide vanes 70 which are arranged in the outer cylinder at intervals, wherein the generator outer cylinder is of a hollow tubular structure, the guide vanes (70, 71) are fixedly connected with the inner wall of the generator outer cylinder, the guide vanes (70, 71) are circumferentially equidistant on the inner wall of the generator outer cylinder, an included angle between every two adjacent first guide vanes 71 is 120 degrees, an included angle between every two adjacent second guide vanes 70 is 120 degrees, reinforcing ribs 72 are arranged on the guide vanes (70, 71), and the guide vanes (70, 71) are further fixed with the inner wall of the generator outer cylinder through the reinforcing ribs 72;
before use, the interlayer type weak flow fluctuation on-line mixing device is installed, the medicine injection film is sleeved in the liner cavity 43, the outer end 44 of the medicine injection film and the end 48 of the liner are arranged in the same direction, the surrounding medicine injector 5 is inserted into the medicine injection film cavity 45, half of the outer end 44 and the inner end 46 of the medicine injection film are folded and attached to the liner end 48 of the outer layer of the liner, as shown in figure 3, the medicine injection film ends (44 and 46) are clamped between the liner end 48 and the annular end cover 51 and are connected and fixed through interference, the medicine permeation layer and the surrounding medicine injector 5 are connected, the assembled medicine permeation layer and the surrounding medicine injector 5 are sleeved in sequence according to the diameter from large to small and are arranged in the outer cylinder 3 of the medicine mixer, the wedge-shaped end 41 of the medicine permeation layer in the dispersion type medicine permeation device 4 is arranged in the same direction as the rectangular opening 31 of the medicine mixer outer barrel 3, the support frame 2 is clamped on the rectangular opening 31 of the medicine mixer outer barrel 3, the wedge-shaped end 41 of the medicine permeation layer in the dispersion type medicine permeation device 4 is clamped with the wedge-shaped opening 23 on the support frame 2, then the medicine mixer outer barrel 3 is in threaded connection with the medicine feeder 6, the medicine feeding branch pipe 62 is connected with the medicine injection inlet 50 through the rubber pipe 64, the rubber pipe 64 is clamped through the long pipe clamp 66 and the short pipe clamp 65, the water inlet barrel 1 is in threaded connection with the front of the medicine mixer outer barrel 3, and the vortex generator 7 and the water outlet barrel 8 are in threaded connection in sequence after the medicine feeder 6 so as to complete the assembly of the sandwich type weak flow fluctuation on-line mixing device;
when in use, current carrying (water) enters from a water inlet on the water inlet cylinder 1, is divided into annular layered flows by the drug permeation layers with different diameters in the dispersion type drug permeation device 4 in the outer cylinder 3 of the drug mixer, enters from the drug inlet pipe orifice 60 of the drug feeder 6, flows through the surrounding type drug injector 5 and the dispersion type drug permeation device 4, and finally, pesticide flowing out from the lining holes 42 on the lining in the dispersion type drug permeation device 4 is mixed in the gaps among the drug permeation layers in a layered flow mode to form mixed liquid; further mixing is carried out at the turbulence generator 7, and finally the mixture flows out of the water outlet cylinder 8; the pesticide enters the main pesticide inlet pipe 61 from the main pesticide inlet pipe 60, the same pesticide can be input into the main pesticide inlet pipe 60, different pesticides can be input into the main pesticide inlet pipe 60 so as to be mixed on line, the tail ends of the main pesticide inlet pipes 61 are communicated and mixed through the annular pipelines 63, the pesticide flows into the pesticide injection inlets 50 from the pesticide inlet branch pipes 62 connected with the main pesticide inlet pipe 61 in the flowing process of the main pesticide inlet pipe 61, flows into the main pesticide injection passages 54 from the pesticide injection inlets 50 and enters the annular branch 52 connected with the main pesticide inlet pipe, then seeps out from the pesticide injection holes 53 on the annular branch 52 and enters the film inner cavities 45 of the pesticide injection films, the pressure loss of the main pesticide injection passages 54 is small, so that the pressures on the annular branch 52 are basically consistent, the outflow flows into the film inner cavities 45 of the pesticide injection holes 53 are nearly consistent, the pressure pulsation of the pesticide flowing out from the pesticide inlet main pesticide inlet pipe 61 is weakened, the fluctuation of the pesticide injection flow is primarily inhibited, the pesticide injection film is increased when the pesticide inflow amount is increased, the pesticide injection film expands, the expanded pesticide injection film expands, the drug injection flow is contained by the expanding film and the fluctuation is inhibited, the drug inflow amount is further reduced, and the drug flow is further inhibited by the fluctuation film, and the drug injection flow is further inhibited by the fluctuation film 47; finally, the pesticide flows out of the lining hole 42, and the fluctuation of the pesticide flow out of the lining hole 42 is obviously weakened, so that the fluctuation of the pesticide inlet flow is restrained; the pesticide flowing out of the bushing holes 42 flows into the turbulence generator 7 after being mixed in the gaps between the seepage layers, is further mixed by the first layer guide vanes 71 and the second layer guide vanes 70, and finally is discharged from the solution outlet of the water outlet cylinder 8.
Because the cross-sectional areas enclosed by different dispersion type medicine permeation devices are different, the layering flow rate in different gaps is different, and therefore the length L of the medicine permeation device is required to be designed by combining the diameter D of the medicine permeation device, the medicine injection quantity ratio of different surrounding type medicine injection devices under the same condition is equal to the ratio of the corresponding layering overflow rate, and the medicine liquid ratio of layering flows at any moment is consistent.
Claims (3)
1. The utility model provides a on-line mixing arrangement of fluctuation of weak flow of intermediate layer formula which characterized in that: comprises a water inlet cylinder, a medicine mixer outer cylinder, a medicine inlet device, a turbulence generator and a water outlet cylinder which are sequentially connected in a threaded manner, wherein the water inlet cylinder is provided with a water inlet which is in threaded connection with a water inlet pipe, the water outlet cylinder is provided with a solution outlet which is in threaded connection with a spray head or a water pipe, a support frame, a dispersion type medicine penetrating device and a surrounding type medicine injector are arranged in the medicine mixer outer cylinder, the dispersion type medicine penetrating device is sleeved outside the surrounding type medicine injector and is in interference fit with the surrounding type medicine injector, the support frame is respectively clamped with the medicine mixer outer cylinder and the dispersion type medicine penetrating device, the medicine inlet device is connected with the surrounding type medicine injector through a rubber pipe,
the dispersing type medicine permeation device comprises a medicine permeation layer with a concentric circle cross section formed by sequentially sleeving the medicine permeation layer from large to small in diameter, the medicine permeation layer comprises a bushing and a medicine injection film, the bushing comprises a bushing inner layer and a bushing outer layer which are sequentially sleeved from large to small in diameter, one ends of the bushing inner layer and the bushing outer layer are fixedly connected to form a wedge-shaped end part which is clamped with a supporting frame, the other ends of the bushing inner layer and the bushing outer layer are provided with bushing end parts which are in interference fit with a surrounding type medicine injector, a bushing inner cavity is formed between the bushing inner layer and the bushing outer layer, and a bushing hole is formed in the bushing; the injection film comprises an injection film inner film and an injection film outer film which are of hollow annular structures, one ends of the injection film inner film and the injection film outer film are fixedly connected, and the other ends of the injection film inner film and the injection film outer film are respectively provided with a corresponding outer end part and an inner end part, so that an injection film inner cavity is formed by the injection film inner film and the injection film outer film; the drug injection film is arranged in the inner cavity of the bushing, the outer end part of the drug injection film is folded and jointed with the outer wall of the bushing end part of the bushing outer layer after bypassing the bushing end part of the bushing inner layer, the inner end part of the drug injection film is folded and jointed with the inner wall of the bushing end part of the bushing inner layer after bypassing the bushing end part of the bushing inner layer, micropores are arranged on the drug injection film,
the surrounding type medicine injector comprises an annular end cover in interference fit with the dispersing type medicine permeation device, a medicine injection main path fixedly connected with the annular end cover, and annular branches connected with the medicine injection main path at equal intervals, wherein the annular branches are provided with uniformly distributed medicine injection holes, the cross section of the annular end cover is U-shaped, and a medicine injection inlet is formed in the end of the medicine injection main path close to the annular end cover.
2. The sandwich-type weak flow fluctuation online mixing device according to claim 1, wherein: the medicine feeder comprises a medicine feeding outer cylinder, medicine feeding pipe openings which are arranged at equal intervals on the circumference of the medicine feeding outer cylinder, a medicine feeding main pipe which is connected with the medicine feeding pipe openings, an annular pipeline which is connected with the free end of the medicine feeding main pipe, and a medicine feeding branch pipe which is arranged on the medicine feeding main pipe and is connected with a medicine injection inlet.
3. The sandwich-type weak flow fluctuation online mixing device according to claim 1, wherein: the turbulence generator comprises a generator outer cylinder, a first layer of guide vanes and a second layer of guide vanes which are arranged in the outer cylinder at intervals, wherein the generator outer cylinder is of a hollow tubular structure, the guide vanes are fixedly connected with the inner wall of the generator outer cylinder, the guide vanes are circumferentially arranged at equal intervals on the inner wall of the generator outer cylinder, an included angle between every two adjacent first guide vanes is 120 degrees, an included angle between every two adjacent second guide vanes is 120 degrees, and reinforcing ribs fixedly connected with the inner wall of the generator outer cylinder are arranged on the guide vanes.
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| CN201810642424.6A CN108554212A (en) | 2018-06-20 | 2018-06-20 | A kind of on-line mixing device of the weak flowed fluctuation of sandwich-type |
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| CN201910268760.3A Active CN109865444B (en) | 2018-06-20 | 2019-04-03 | Sandwich type weak flow fluctuation on-line mixing device |
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| CN1259883A (en) * | 1997-06-20 | 2000-07-12 | 环境科学工业株式会社 | Static fluid mixer |
| JP2008161733A (en) * | 2006-12-26 | 2008-07-17 | Ngk Insulators Ltd | Chemical liquid preparing apparatus |
| CN104756970A (en) * | 2015-02-13 | 2015-07-08 | 南京林业大学 | Moveable chemical mixer |
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| CN109865444A (en) | 2019-06-11 |
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