CN109499413A - A kind of adjustable venturi mixing arrangement in throat's injection hole site - Google Patents
A kind of adjustable venturi mixing arrangement in throat's injection hole site Download PDFInfo
- Publication number
- CN109499413A CN109499413A CN201910030187.2A CN201910030187A CN109499413A CN 109499413 A CN109499413 A CN 109499413A CN 201910030187 A CN201910030187 A CN 201910030187A CN 109499413 A CN109499413 A CN 109499413A
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- perforation
- leading portion
- back segment
- cushion block
- bolt
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- 238000002347 injection Methods 0.000 title claims abstract description 65
- 239000007924 injection Substances 0.000 title claims abstract description 65
- 230000008859 change Effects 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 230000011218 segmentation Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 235000013290 Sagittaria latifolia Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000015246 common arrowhead Nutrition 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
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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
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The invention discloses a kind of adjustable venturi mixing arrangements in throat's injection hole site, including Venturi tube leading portion, Venturi tube back segment, stud, nut, single ended bolt, flange nut, perforation cushion block, adjustment cushion block group, leading portion perforation group, leading portion bolt hole group, leading portion flange, leading portion perforation, leading portion bolt hole, back segment perforation group, back segment bolt hole group, back segment flange, back segment perforation, back segment bolt hole and adjustment cushion block；Adjustment cushion block group and the cylindrical body that perforation cushion block is embedded in venturi pipeline section leading portion and the splicing of venturi pipeline section back segment are intracavitary, entire mixing arrangement is formed after being fixed by each bolt and nut, change insertion sequence of the perforation cushion block in adjustment cushion block group, thus it is possible to vary device mixed effect.The present invention is applicable in various working, saves manpower and time cost, and protective device flow field is complete, and it is also more convenient that interior each element is managed in cleaning.
Description
Technical field
The present invention relates to venturi technical fields, mix more particularly to a kind of adjustable venturi in throat's injection hole site
Device.
Background technique
It is numerous that venturi is related to field, comprising various fields such as military affairs, the energy, agricultural, material, chemical industry, can produce part
Low-pressure area has higher utility value.Venturi mixer is when flowing to throat using the through enturi tube converging transition of mainstream fluid,
Flow section sharply reduces, and water flow is depressured by speedup, forms stable low-pressure area, driven fluid is under differential pressure action through throat
In perforation injection to Venturi tube, to realize the mixing of two fluids.
Perforation is arranged in venturi mixing arrangement throat, and perforation is to influence device in the relative position of venturi throat
One of an important factor for.In venturi mixing arrangement practical work process, a variety of mixing ratio operating conditions are often related to, but conventional at present
Venturi mixing arrangement can not be changed relative position of the perforation in Venturi tube, therefore meet different mixing ratios
It is required that, it is necessary to process multiple mixing arrangements, manpower and time higher cost.Therefore the adjustable text in a kind of phase throat injection hole site
Mixing arrangement becomes one of the key problem in technology of this field in mound.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of adjustable venturi mixing arrangement in throat's injection hole site,
The various working that venturi mixing arrangement can be made to be suitable for mixing effect, blend change in location.
In order to solve the above technical problems, one technical scheme adopted by the invention is that:
A kind of adjustable venturi mixing arrangement in throat's injection hole site has the Venturi tube of cylindrical groove including throat
Leading portion 1, Venturi tube back segment 2, stud a3, stud b4, stud c5, stud d6, nut a7, nut
B8, nut c9, nut d10, nut e14, nut f15, nut g16, nut h17, single ended bolt a18, single ended bolt b19, list
Hook bolt c20, single ended bolt d24, nut i25, nut j26, nut k27, nut l28, perforation cushion block 29 and adjustment cushion block
Group 30；Venturi tube leading portion 1 includes leading portion perforation group 11, leading portion bolt hole group 12 and leading portion flange 13, leading portion perforation
Group 11 includes leading portion perforation a111, leading portion perforation b112, leading portion perforation c113, leading portion perforation d114 and leading portion injection
Hole e115, leading portion bolt hole group 12 include leading portion bolt hole a121, leading portion bolt hole b122, leading portion bolt hole c123
With leading portion bolt hole d124, leading portion flange 13 includes four single ended bolt through-holes；Venturi tube back segment 2 includes back segment perforation
Group 21, back segment bolt hole group 22 and back segment flange 23, back segment perforation group 21 include back segment perforation a211, back segment perforation
B212, back segment perforation c213, back segment perforation d214 and back segment perforation e215, back segment bolt hole group 22 include back segment spiral shell
Bolt throughhole a221, back segment bolt hole b222, back segment bolt hole c223 and back segment bolt hole d224, back segment flange 23 include
Four single ended bolt through-holes.Adjusting cushion block group 30 includes adjustment cushion block a301, adjustment cushion block b302, adjustment cushion block c303, adjustment
Cushion block d304, adjustment cushion block e305, adjustment cushion block f306, adjustment cushion block g307, adjustment cushion block h308 and adjustment cushion block i309；Respectively
Leading portion bolt hole, each through-hole in adjustment 30 side of cushion block group, each through-hole in 29 side of perforation cushion block, each back segment bolt hole are sequentially
Alignment, four studs penetrate wherein, and both ends are fixed with respective nut, leading portion flange 13, each through-hole of back segment flange 23
It is sequentially aligned, four single ended bolts penetrate wherein, are fixed by respective flange nut.
The Venturi tube leading portion 1, Venturi tube back segment 2 are the Venturi tubes by a throat comprising raised cylinder cavity
Section, obtained by the radial direction cutting of cylindrical sides bus midpoint, the long 20cm of side bus of cylindrical cavity, Venturi tube after cutting
Throat's cylindrical cavity inner wall side long 10cm of bus of leading portion 1, along diameter at the position of bus 1cm, 3cm, 5cm, 7cm, 9cm
To the perforation that diameter is 1cm is respectively set, each injection axially bored line intersects with bus, is through to the outer wall of throat's Column groove
Face；Along cylinder axis Xiang Weiyi circular ring shape wall surface, the circumferentially-spaced an angle of 90 degrees of circular ring shape wall surface is respectively set tight with each stud
Leakproof fit leading portion bolt hole 121, leading portion bolt hole 122, leading portion bolt hole 123 and leading portion bolt hole 124 are each logical
Axially bored line is equal with circular ring shape wall surface axis spacing, and through-hole is symmetrically distributed two-by-two in injection axially bored line two sides；Venturi
Circular ring shape leading portion flange 13 is arranged at 1 segmentation lines of pipe leading portion, the circumferentially-spaced an angle of 90 degrees of flange circle ring wall surface, which opens up, sets four lists
Hook bolt through-hole, each single ended bolt through-bore axis is equal with flange circle ring wall surface axis spacing, and single ended bolt through-hole two
Two are symmetrically distributed in injection axially bored line two sides；Throat's cylindrical cavity inner wall side long 10cm of bus of Venturi tube back segment 2,
The perforation that diameter is 1cm, each injection axially bored line are radially respectively set at the position of bus 1cm, 3cm, 5cm, 7cm, 9cm
Intersect with bus, is through to the outside wall surface of throat's Column groove；Along cylinder axis Xiang Weiyi circular ring shape wall surface, circular ring shape wall surface week
To interval an angle of 90 degrees be respectively set with the close-fitting back segment bolt hole 221 of each stud, back segment bolt hole 222, after
Section bolt hole 223 and back segment bolt hole 224, each through-bore axis is equal with circular ring shape wall surface axis spacing, and through-hole two
Two are symmetrically distributed in injection axially bored line two sides；Circular ring shape back segment flange 23, flange circle are arranged at 2 segmentation lines of Venturi tube back segment
Four single ended bolt through-holes, each single ended bolt through-bore axis and flange circle ring wall surface is arranged in the circumferentially-spaced an angle of 90 degrees of ring wall surface
Axis spacing is equal, and single ended bolt through-hole is symmetrically distributed two-by-two in injection axially bored line two sides.
The adjustment cushion block group 30 is made of 9 completely identical in structure torus adjustment cushion blocks；Outside each adjustment cushion block
Circle diameter is identical as venturi throat cylindrical groove inner wall circular cross section diameter and is fitted close, inner circle ring diameter and text
Venturi converging transition outlet circular cross-section, Venturi tube divergent segment entrance circular cross section diameter are all the same, axial thick along torus
Degree is 2cm, circumferentially-spaced an angle of 90 degrees setting and close-fitting four through-holes of each stud, and through-bore axis and torus
Wall surface axis spacing is equal.
The perforation cushion block 29 is to open a cylinder with the outer ring surface of the identical torus of each adjustment cushion block in a structure
Obtained by shape perforation, injection bore dia is 1cm, and injection axially bored line crosses annulus body side surface bus midpoint, and the through-hole of torus is two-by-two
It is symmetrically distributed in injection axially bored line two sides, and perforation is not penetrated through with through-hole, perforation is passed through by the outer ring wall surface of torus
It wears to inner ring wall surface and ends.
The perforation cushion block 29 can first convert the insertion position in adjustment cushion block group 30, then whole loading Venturi tube
Cylindrical cavity, by the perforation and the corresponding a certain leading portion of Venturi tube outer wall of the perforation cushion block 29 behind change position
Perforation or the alignment of back segment perforation, are finally inserted the assembly of completion venturi mixer after bolt attaching nut, to realize
Change perforation in the function of venturi throat position.
The beneficial effects of the present invention are:
A kind of adjustable venturi mixing arrangement in throat's injection hole site of the invention compares conventional venturi injection mixing dress
It sets, using the adjustment of perforation cushion block insertion sequence in adjustment cushion block group, achievees the purpose that change device mixed effect, be applicable in
In a variety of mixing ratio operating conditions, multiple groups injector workpiece can be replaced, reduces consumable quantity, shortening is come into operation the period.Each cushion block inner wall
Coincidence, which connects, constitutes venturi pipeline section throat, to throat's mainstream fluid and driving fluid without any interference, protects in mixing arrangement
Portion flow field it is complete；Interior element is managed in the installation easy to disassemble of entire mixing arrangement, cleanable and replacement.
Detailed description of the invention
Fig. 1 is a kind of the first installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 2 is a kind of the second installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 3 is a kind of third installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 4 is a kind of the 4th installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 5 is a kind of the 5th installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 6 is a kind of the 6th installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 7 is a kind of the 7th installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 8 is a kind of the 8th installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Fig. 9 is a kind of the 9th installation diagram of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Figure 10 is a kind of 3-D view of the adjustable venturi mixing arrangement in throat's injection hole site of the invention；
Figure 11 is three of Venturi tube leading portion in a kind of adjustable venturi mixing arrangement in throat's injection hole site of the invention
Dimensional view；
Figure 12 is three of Venturi tube back segment in a kind of adjustable venturi mixing arrangement in throat's injection hole site of the invention
Dimensional view；
Figure 13 is the three-dimensional view that cushion block is adjusted in a kind of adjustable venturi mixing arrangement in throat's injection hole site of the invention
Figure；
Figure 14 is the three-dimensional of perforation cushion block in a kind of adjustable venturi mixing arrangement in throat's injection hole site of the invention
View.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description so that advantages of the present invention and
Feature can be easier to be readily appreciated by one skilled in the art, to make apparent specific boundary to protection scope of the present invention
It is fixed.
The present invention is a kind of adjustable venturi mixing arrangement in throat's injection hole site, including throat with cylindrical groove
Venturi tube leading portion 1, Venturi tube back segment 2, stud a3, stud b4, stud c5 and stud d6, nut
A7, nut b8, nut c9, nut d10, nut e14, nut f15, nut g16, nut h17, single ended bolt a18, single ended bolt
B19, single ended bolt c20, single ended bolt d24, nut i25, nut j26, nut k27, nut l28, perforation cushion block 29, adjustment
Cushion block group 30.Wherein Venturi tube leading portion 1 includes leading portion perforation group 11, leading portion bolt hole group 12 and leading portion flange 13, preceding
Section perforation group 11 include leading portion perforation a111, leading portion perforation b112, leading portion perforation c113, leading portion perforation d114 and
Leading portion perforation e115, leading portion bolt hole group 12 include leading portion bolt hole a121, leading portion bolt hole b122, leading portion bolt
Through-hole c123 and leading portion bolt hole d124；Venturi tube back segment 2 includes back segment perforation group 21,22 and of back segment bolt hole group
Back segment flange 23, back segment perforation group 21 include back segment perforation a211, back segment perforation b212, back segment perforation c213, after
Section perforation d214 and back segment perforation e215, back segment bolt hole group 22 are logical including back segment bolt hole a221, back segment bolt
Hole b222, back segment bolt hole c223 and back segment bolt hole d224；Cushion block group 30 includes adjustment cushion block a301, adjustment cushion block
B302, adjustment cushion block c303, adjustment cushion block d304, adjustment cushion block e305, adjustment cushion block f306, adjustment cushion block g307, adjusting pad
Block h308 and adjustment cushion block i309.
As the preferred embodiment of the present invention, as shown in Figure 1, arrow direction is by stud a3, double end spiral shell along figure
Bolt b4, stud c5 and stud d6 respectively penetrate 1 circular ring shape wall surface of Venturi tube leading portion leading portion bolt hole a121,
In leading portion bolt hole b122, leading portion bolt hole c123 and leading portion bolt hole b124；Each stud penetrates each leading portion spiral shell
The depth of bolt throughhole is as shown in Figure 2；Such as Fig. 3, stud a3, stud b4, stud c5 and stud d6 are divided
It is not pierced by leading portion bolt hole a121, leading portion bolt hole b122, leading portion bolt hole c123 and leading portion bolt hole d124,
Protrusion uses nut a7, nut b8, nut c9 and nut d10 to pre-tighten respectively；Such as Fig. 4, will respectively be adjusted in adjustment cushion block group 30
Cushion block is arranged successively in order, and 29 perforation of perforation cushion block is inserted into upward between adjustment cushion block d304 and adjustment cushion block e305,
The side of each cushion block is sequentially bonded, and through-hole is sequentially aligned, and in the direction of the arrow penetrates each cushion block after each stud of through-hole alignment
In stud；Such as Fig. 6, after all cushion blocks successively penetrate stud, adjustment cushion block a301, adjustment cushion block b302, adjusting pad
Block c303, adjustment cushion block d304, perforation cushion block 29 are embedded in the cylindrical groove of 1 throat of Venturi tube leading portion, cylindrical
Side wall and the cylindrical groove inner wall of 1 throat of Venturi tube leading portion fit, before the perforation and Venturi tube of perforation cushion block 29
The leading portion perforation e115 of 1 throat's cylindrical outer wall of section is engaged, what adjustment cushion block a301 did not fitted with adjustment cushion block b302
The ring-shaped inner wall face paste of 1 axial direction of another circular ring shape side and Venturi tube leading portion is closed；Such as Fig. 7, by Venturi tube back segment annulus
Back segment bolt hole a221, back segment bolt hole b222, back segment bolt hole c223 and the back segment bolt hole d224 of shape wall surface
It is respectively aligned to the part that stud a3, stud b4, stud c5 and stud d6 are pierced by after adjustment cushion block group 30,
It is pushed into Venturi tube back segment 2 along big arrow direction, then by nut a14, nut b15, nut c16 and nut d17 respectively along small arrow
Head direction pre-tightens on stud a3, stud b4, stud c5 and stud d6, reaches the fiting effect of Fig. 8；
Such as Fig. 9, single ended bolt a18, single ended bolt b19, single ended bolt c20 and single ended bolt d24 are directed at Venturi tube front and rear sections method
Orchid be overlapped four tapped through holes, along left side small arrow direction push-in through-hole along, then by nut i25, nut j26, nut k27 and
Nut l28 is pre-tightened in four single ended bolts along right side small arrow direction respectively；Such as Figure 10, while tightening the spiral shell on each bolt
Mother is fitted close each component of whole device in the case where uniform force, each interior annular for adjusting cushion block and perforation cushion block
It is used as throat's inner wall after wall surface joined in parallel, the converging transition outlet of both ends and Venturi tube leading portion 1, Venturi tube back segment 2
Divergent segment entrance engages to form entire Venturi tube structure, and the perforation of perforation cushion block 29 and entire Venturi tube structure are connected group
At entire venturi mixing arrangement.
As is illustrated by figs. 11 and 12, Venturi tube leading portion 1, Venturi tube back segment 2 are by a throat with raised cylinder
The venturi pipeline section of cavity, obtained by the radial direction cutting of cylindrical sides bus midpoint, the long 20cm of side bus of cylindrical cavity,
Throat's cylindrical cavity inner wall side long 10cm of bus of Venturi tube leading portion 1 after cutting, bus 1cm, 3cm, 5cm, 7cm,
Diameter is arranged radially at the position 9cm as 1cm, the perforation for the outside wall surface for being through to throat's Column groove, and each injection hole axle
Line intersects with bus, is followed successively by leading portion perforation a111, leading portion perforation b112, leading portion perforation c113, leading portion perforation
D114 and leading portion perforation e115, along cylinder axis Xiang Weiyi circular ring shape wall surface, the circumferentially-spaced an angle of 90 degrees difference of circular ring shape wall surface
Setting and the close-fitting leading portion bolt hole a121 of each stud, leading portion bolt hole b122, leading portion bolt hole c123
With leading portion bolt hole d124, each through-bore axis is equal with circular ring shape wall surface axis spacing, and through-hole is symmetrically distributed two-by-two
Arrange that circular ring shape leading portion flange 13, flange circle ring wall surface are circumferential at injection axially bored line two sides, 1 segmentation lines of Venturi tube leading portion
It is spaced an angle of 90 degrees and four single ended bolt through-holes, each single ended bolt through-bore axis and flange circle ring wall surface axis spacing phase is set
Deng, and single ended bolt through-hole is symmetrically distributed two-by-two in injection axially bored line two sides；Throat's cylindrical body of Venturi tube back segment 2 is empty
The cavity wall side long 10cm of bus is arranged radially diameter at the position bus 1cm, 3cm, 5cm, 7cm, 9cm and is 1cm, is through to
The perforation of the outside wall surface of throat's Column groove, and each injection axially bored line intersects with bus, be followed successively by back segment perforation a211,
Back segment perforation b212, back segment perforation c213, back segment perforation d214 and back segment perforation e215, along cylinder axis Xiang Weiyi
Circular ring shape wall surface, the circumferentially-spaced an angle of 90 degrees of circular ring shape wall surface are respectively set and the close-fitting back segment bolt hole of each stud
A221, back segment bolt hole b222, back segment bolt hole c223 and back segment bolt hole d224, each through-bore axis and circular ring shape wall
Face axis spacing is equal, and through-hole is symmetrically distributed the cloth at injection axially bored line two sides, 2 segmentation lines of Venturi tube back segment two-by-two
Circular ring shape back segment flange 23 is set, four single ended bolt through-holes, each single head spiral shell is arranged in the circumferentially-spaced an angle of 90 degrees of flange circle ring wall surface
Bolt throughhole axis is equal with flange circle ring wall surface axis spacing, and single ended bolt through-hole is symmetrically distributed two-by-two in perforation
Axis two sides.It is respectively provided between the section flange of front and back, between stud and nut, between single ended bolt and flange nut flexible close
Packing, each stud structure is identical, and each nut is hex nut and structure is identical, and each single ended bolt is single head hexagonal
Bolt and structure is identical, each flange nut is hex nut and structure is identical.
Adjustment cushion block group 30 is made of 9 completely identical in structure torus adjustment cushion blocks, and each adjustment cushion block is as schemed
Shown in 13, outer circle ring diameter is identical as venturi throat cylindrical groove inner wall circular cross section diameter and is fitted close, inner circle
Ring diameter and Venturi tube converging transition outlet circular cross-section, Venturi tube divergent segment entrance circular cross section diameter are all the same, along circle
Ring body axial width is 2cm, circumferentially-spaced an angle of 90 degrees setting and close-fitting four through-holes of each stud, and each through-hole
Axis is equal with torus wall surface axis spacing.
As shown in figure 14, perforation cushion block 29 is to open the lateral surface of structure torus identical with each adjustment cushion block
Obtained by one cylindrical perforation, the diameter of opened perforation is 1cm, is through to inner ring wall surface side by the outer ring wall surface of torus
Edge, injection axially bored line cross annulus body side surface bus midpoint, and the through-hole of torus is symmetrically distributed two-by-two in axis two sides, and is drawn
Perforation is not penetrated with through-hole.
Venturi tube should be released in conjunction with Fig. 4 and Fig. 5 in order to adjust perforation in the position of venturi mixing arrangement throat
Each nut of back segment 2 is to the tight fit of each stud and each flange nut of front and rear sections flange to each single ended bolt
It is fitted close, extracts Venturi tube back segment 2, taken out from each stud and press the tactic each adjustment cushion block of Fig. 4 and injection
Hole cushion block 29；Again by the insertion position of perforation cushion block 29 by being changed to adjustment between adjustment cushion block d304 and adjustment cushion block e305
After cushion block i309, each adjustment cushion block and perforation cushion block 29 are penetrated in each stud by Fig. 5 sequence again, are put into literary mound
In pipe leading portion 1 cylindrical groove in, merge Venturi tube leading portion 1, become complete venturi pipeline section after Venturi tube back segment 2,
Each nut of completion Venturi tube back segment 2 is to the tight fit of each stud and each flange nut to the tight of each single ended bolt
After close fit, venturi mixing arrangement as shown in Figure 10 is formed, reaches and changes perforation opposite position in venturi throat
The function of setting.
When such as Fig. 4 sequence is fixed on venturi throat middle position to perforation cushion block 29, perforation cushion block 29 draws
Perforation is located among entire venturi throat, and driving fluid flow to venturi throat low-pressure area through perforation, and throat is later half
Section pressure still keeps low pressure, i.e. injection hole exits rear portion back pressure is lower, and injection volume is larger, compares operating condition suitable for higher injection；When
When being fixed on venturi throat terminal position, the perforation of perforation cushion block 29 is located at whole such as Fig. 5 sequence of perforation cushion block 29
A venturi throat end, driving fluid flow to venturi throat low-pressure area through perforation, and rear portion is Venturi tube flaring
Section higher-pressure region, i.e. injection hole exits rear portion back pressure is higher, and injection volume is smaller, compares operating condition suitable for low injection.
In conclusion insertion sequence of the present invention by adjusting perforation cushion block in adjustment cushion block group, it is mixed to change device
Effect is closed, venturi mixing arrangement is made to be suitable for a variety of mixing ratio operating conditions, reduces manpower and material cost；It adjusts each in cushion block group
The coincidence of cushion block inner wall, which connects, constitutes venturi pipeline section throat, guarantees that venturi throat forms stabilizing low voltage area, flow field is without dry
It disturbs；Entire venturi mixing arrangement installation and removal are convenient, and can realize the cleaning and replacement to pipe inner part.
Claims (5)
1. a kind of adjustable venturi mixing arrangement in throat's injection hole site, it is characterised in that: have cylindrical groove including throat
Venturi tube leading portion (1), Venturi tube back segment (2), stud a (3), stud b (4), stud c (5), double end
Bolt d (6), nut a (7), nut b (8), nut c (9), nut d (10), nut e (14), nut f (15), nut g (16),
Nut h (17), single ended bolt a (18), single ended bolt b (19), single ended bolt c (20), single ended bolt d (24), nut i (25),
Nut j (26), nut k (27), nut l (28), perforation cushion block (29) and adjustment cushion block group (30)；Venturi tube leading portion (1)
Upper includes leading portion perforation group (11), leading portion bolt hole group (12) and leading portion flange (13), and leading portion perforation group (11) includes
Leading portion perforation a (111), leading portion perforation b (112), leading portion perforation c (113), leading portion perforation d (114) and leading portion injection
Hole e (115), leading portion bolt hole group (12) include leading portion bolt hole a (121), leading portion bolt hole b (122), leading portion bolt
Through-hole c (123) and leading portion bolt hole d (124), leading portion flange (13) include four single ended bolt through-holes；Venturi tube back segment
It (2) include back segment perforation group (21), back segment bolt hole group (22) and back segment flange (23), back segment perforation group (21) includes
Back segment perforation a (211), back segment perforation b (212), back segment perforation c (213), back segment perforation d (214) and back segment injection
Hole e (215), back segment bolt hole group (22) include back segment bolt hole a (221), back segment bolt hole b (222), back segment bolt
Through-hole c (223) and back segment bolt hole d (224), back segment flange (23) include four single ended bolt through-holes；Adjust cushion block group
It (30) include adjustment cushion block a (301), adjustment cushion block b (302), adjustment cushion block c (303), adjustment cushion block d (304), adjustment cushion block e
(305), cushion block f (306), adjustment cushion block g (307), adjustment cushion block h (308) and adjustment cushion block i (309) are adjusted；Each leading portion bolt
Through-hole, each through-hole in adjustment cushion block group (30) side, each through-hole in perforation cushion block (29) side, each back segment bolt hole are sequentially right
Together, four studs penetrate wherein, and both ends are fixed with respective nut, and leading portion flange (13), back segment flange (23) are each logical
Hole is sequentially aligned, and four single ended bolts penetrate wherein, is fixed by respective flange nut.
2. the adjustable venturi mixing arrangement in a kind of throat's injection hole site according to claim 1, it is characterised in that: institute
State Venturi tube leading portion (1), Venturi tube back segment (2) be by a throat include raised cylinder cavity venturi pipeline section, edge
Obtained by the radial direction cutting of cylindrical sides bus midpoint, the long 20cm of side bus of cylindrical cavity, Venturi tube leading portion after cutting
(1) throat's cylindrical cavity inner wall side long 10cm of bus, at the position of bus 1cm, 3cm, 5cm, 7cm, 9cm radially
The perforation that diameter is 1cm is respectively set, each injection axially bored line intersects with bus, is through to the outside wall surface of throat's Column groove；
Along cylinder axis Xiang Weiyi circular ring shape wall surface, the circumferentially-spaced an angle of 90 degrees of circular ring shape wall surface is respectively set closely matches with each stud
Leading portion bolt hole (121), leading portion bolt hole (122), leading portion bolt hole (123) and the leading portion bolt hole (124) of conjunction,
Each through-bore axis is equal with circular ring shape wall surface axis spacing, and through-hole is symmetrically distributed two-by-two in injection axially bored line two sides；Text
Circular ring shape leading portion flange (13) are arranged at venturi leading portion (1) segmentation lines, the circumferentially-spaced an angle of 90 degrees setting of flange circle ring wall surface
Four single ended bolt through-holes, each single ended bolt through-bore axis is equal with flange circle ring wall surface axis spacing, and single ended bolt
Through-hole is symmetrically distributed two-by-two in injection axially bored line two sides；Throat's cylindrical cavity inner wall side of Venturi tube back segment (2) is female
The perforation that diameter is 1cm is radially respectively set, respectively in wire length 10cm at the position of bus 1cm, 3cm, 5cm, 7cm, 9cm
Injection axially bored line intersects with bus, is through to the outside wall surface of throat's Column groove；Along cylinder axis Xiang Weiyi circular ring shape wall surface, circle
The circumferentially-spaced an angle of 90 degrees of ring wall surface is respectively set and the close-fitting back segment bolt hole (221) of each stud, back segment spiral shell
Bolt throughhole (222), back segment bolt hole (223) and back segment bolt hole (224), between each through-bore axis and circular ring shape wall surface axis
Away from equal, and through-hole is symmetrically distributed two-by-two in injection axially bored line two sides；Annulus is arranged at Venturi tube back segment (2) segmentation lines
Four single ended bolt through-holes are arranged in shape back segment flange (23), the circumferentially-spaced an angle of 90 degrees of flange circle ring wall surface, and each single ended bolt is logical
Axially bored line is equal with flange circle ring wall surface axis spacing, and single ended bolt through-hole is symmetrically distributed two-by-two in injection axially bored line
Two sides.
3. the adjustable venturi mixing arrangement in a kind of throat's injection hole site according to claim 1, it is characterised in that: institute
Adjustment cushion block group (30) is stated to be made of 9 completely identical in structure torus adjustment cushion blocks；Each adjustment cushion block outer toroid diameter
Identical as venturi throat cylindrical groove inner wall circular cross section diameter and be fitted close, inner circle ring diameter and Venturi tube are gradually
Contracting section outlet circular cross-section, Venturi tube divergent segment entrance circular cross section diameter are all the same, are 2cm along torus axial width,
Circumferentially-spaced an angle of 90 degrees setting and close-fitting four through-holes of each stud, and through-bore axis and torus wall surface axis
Spacing is equal.
4. the adjustable venturi mixing arrangement in a kind of throat's injection hole site according to claim 1, it is characterised in that: institute
Stating perforation cushion block (29) is to open a cylindrical perforation with the outer ring surface of the identical torus of each adjustment cushion block in a structure
Gained, injection bore dia are 1cm, and injection axially bored line crosses annulus body side surface bus midpoint, and the through-hole of torus symmetrically divides two-by-two
Injection axially bored line two sides are distributed in, and perforation is not penetrated through with through-hole, perforation is through to inner ring by the outer ring wall surface of torus
Wall surface cut-off.
5. the adjustable venturi mixing arrangement in a kind of throat's injection hole site according to claim 1, it is characterised in that: institute
The insertion position in adjustment cushion block group (30), then whole loading Venturi tube cylinder can first be converted by stating perforation cushion block (29)
Cavity, by the perforation and the corresponding a certain leading portion injection of Venturi tube outer wall of the perforation cushion block (29) behind change position
Hole or the alignment of back segment perforation, are finally inserted the assembly of completion venturi mixer after bolt attaching nut, to realize change
Function of the perforation in venturi throat position.
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| Application Number | Priority Date | Filing Date | Title |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910030187.2A CN109499413B (en) | 2019-01-14 | 2019-01-14 | Venturi mixing device with adjustable throat injection hole position |
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Cited By (1)
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|---|---|---|---|---|
| CN114042389A (en) * | 2020-07-26 | 2022-02-15 | 西安交通大学 | Venturi mixing device with throat part with variable guide angle |
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| Publication number | Publication date |
|---|---|
| CN109499413B (en) | 2024-02-02 |
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