CN106369627A - Concentric flow variable orifices for gas and particulate flow balance - Google Patents
Concentric flow variable orifices for gas and particulate flow balance Download PDFInfo
- Publication number
- CN106369627A CN106369627A CN201610556660.7A CN201610556660A CN106369627A CN 106369627 A CN106369627 A CN 106369627A CN 201610556660 A CN201610556660 A CN 201610556660A CN 106369627 A CN106369627 A CN 106369627A
- Authority
- CN
- China
- Prior art keywords
- blade
- housing
- molectron
- pipe fitting
- flow orifice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/027—Regulating fuel supply conjointly with air supply using mechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/006—Fuel distribution and transport systems for pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/02—Solid fuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Transport Of Granular Materials (AREA)
- Furnace Charging Or Discharging (AREA)
- Pallets (AREA)
Abstract
The invention relates to a concentric flow variable orifices for gas and particulate flow balance. A variable orifice assembly includes a housing defining a flow orifice therethrough and configured to be connected in fluid communication between two pipes of a particle conveyance system. The assembly includes a plurality of blades pivotally mounted to the housing to pivot between a retracted position and an extended position. Each blade includes a gas path edge. In the retracted position, the gas path edges of the blades conform to the flow orifice. In the extended position, the blades extend inward from the flow orifice.
Description
Technical field
It relates to the conveying of the mixed flow of granule and gas, and systems as coal pipeline system
Variable orifice in system.
Background technology
It has been known in the art the various apparatus and method of the gas stream for conveying solids laden.In this kind of dress
In putting, many devices be directed to coal pipeline system, wherein the solid particle of fine coal convey in the air stream by such as delivery to
The tubing of nozzle is for burning in a furnace.Typical coal pipeline system carries between one or more flour mills and smelting furnace
For multiple parallel pipe fittings.Typically need to be evenly distributed air stream in various pipe fittings.For example, feed to two in a coal pipe
The downstream of the distributary division of individual or more downstream coal pipes, needs equably to balance flowing across all downstreams pipe fitting, so that in smelting furnace
Middle offer homogenous combustion.Homogenous combustion produces less pollutant than non-uniform combustion, in non-uniform combustion, fuel and air
The local imbalance of ratio leads to inefficient combustion and increased pollutant.
Between balance coal pipe, the conventional solution of the problem of flowing has included variable orifice is placed in coal pipe.This solution
Certainly scheme allow by shunk by variable orifice in one or more pipe fittings on demand or hinder flow channel a part and
Adjust the pressure between pipe fitting.Typical variable orifice design is butterfly valve-type variable orifice or sliding gate valve-type variable orifice.Although this
A little devices are useful for counterpressure between pipe fitting and pipe fitting, but these devices produce equally distributed ability side at them
Face is limited.Butterfly valve-type variable orifice and sliding gate valve-type variable orifice produce in the air in variable orifice downstream and particle stream
Raw asymmetric imbalance.In other words, traditional variable orifice produce in single pipe fitting coal particle distribution local uneven
Property.The uneven distribution of air and granule causes the local erosion of coal pipe, if do not checked, then coal pipe is eventually invaded completely
Erosion, thus cause dangerous operating condition.
This kind of conventional method and system are typically considered and meet their expected purpose.However, still needing in this area
Will improved variable orifice.The disclosure provides the solution needing for this.
Content of the invention
Variable orifice molectron includes housing, and described housing defines the flow orifice through described housing, and is configured to flow
Body is communicatively connected between two pipe fittings of granule induction system.Described molectron includes multiple blades, and described blade pivots
Be attached to housing between advanced position and extended position pivot.Each blade includes gas path edge.In retraction position
In putting, the gas path edge of blade is consistent with flow orifice.In extended position, blade inwardly stretches from flow orifice, wherein often
The gas path edge of individual blade is separated with other spacing with blades.
Housing may include a pair of separate housing ring of axially spaced-apart, and described housing ring is engaged by the multiple pads between them
Together.Pad can be spaced separately in the circumferential, thus in the circumferential with blade alternate.Pad can be installed into respect to
Housing ring is fixed.It is also contemplated that housing may include outer shroud, the corresponding discrepancy that described outer shroud has each respective vanes neighbouring is opened
Mouthful.
Blade can be for example from corresponding pivot pin to being pivotally mounted between housing ring, and described pivotal pin extends axially through
Each of housing ring and respective vanes.Pivotal pin can be installed into be fixed with respect to the holding of housing ring.
The gas path edge of each blade can bend along circular arc.For example, circular arc can have approximately equal to flow orifice
The diameter of diameter.In advanced position, the gas path edge of each blade can generally be flushed with flow orifice.
Limiter can may be operably coupled to blade, with limit the traveling of blade thus prevent blade flowing in the hole that
This runs into or contacts.Limiter can be configured to prevent the relative free end of the respective pivot with described blade of each blade
Reach, run into or intersect at the centrage through respective pivot in hole.For example, blade can have in full extended position jointly
Have in entrance flow orifice at utmost, most the 50% of the flow region in described at utmost block flow hole.
Each blade may include associated actuators, and blade be may be operably coupled to housing by described actuator, with independent of
Other blades move described blade.It is also contemplated that blade can be operatively coupled together by connector, for blade
Synchronization activate.
Microgranule tubing includes the first pipe fitting, and described first pipe fitting is arranged to be conducted through institute in the axial direction
State the microgranule of the first pipe fitting and the mixed flow of gas；And second pipe fitting, described second pipe fitting is arranged in axial direction
On be conducted through the microgranule of described second pipe fitting and the mixed flow of gas.Described system also includes variable orifice combination as above
Part, wherein housing are installed to connect the first pipe fitting and the second pipe fitting for from the first pipe fitting to the fluid of the second pipe fitting even
Logical.
First pipe fitting and the second pipe fitting each can have internal diameter, and described internal diameter is equal to the straight of the flow orifice of variable orifice molectron
Footpath.Each of first pipe fitting and the second pipe fitting can install (for example, welding or bolt connection) to the respective housings ring of housing.
According to the detailed description to preferred embodiment below in conjunction with accompanying drawing, the system and method for the disclosure these and its
Its feature will become more fully apparent to those skilled in the art.
Brief description
For making disclosure those skilled in the art will readily understand how to make in the case of there is no improper experiment
Make and use the apparatus and method of the disclosure, to describe the side of being preferable to carry out of the disclosure herein below with reference to some figures in detail
Case, wherein:
Fig. 1 is the schematic diagram of the exemplary of the microgranule tubing according to disclosure construction, illustrates each have
There are four coal pipes of variable orifice molectron；
Fig. 2 is the axial end view of one of the variable orifice molectron of Fig. 1, illustrates the blade being in advanced position；
Fig. 3 is the cross section side elevation of the variable orifice molectron of Fig. 2, illustrates the blade between two housing rings；
Fig. 4 is the axial end view of the variable orifice molectron of Fig. 2, illustrates the blade being in extended position；
Fig. 5 is the cross section side elevation of the variable orifice molectron of Fig. 4, illustrates the blade being in extended position；
Fig. 6 is the axial end view of the another exemplary embodiment of the variable orifice molectron according to disclosure construction, shows
Go out the coupling mechanism activating for Synchronous Leaf；
Fig. 7-10 is the perspective view of the another exemplary embodiment of the variable orifice molectron according to disclosure construction, illustrates
The another exemplary coupling mechanism activating for Synchronous Leaf, illustrates to be respectively at from be fully retracted to full extension four not
With the blade in position；And
Figure 11-13 is that the end of the another exemplary embodiment of the variable orifice molectron according to disclosure construction is faced
Figure, illustrates to overlap the blade in extended position, there is shown with the leaf being in from three kinds of corresponding states retracting to stretching, extension
Piece.
Specific embodiment
Accompanying drawing will be carried out with reference now, wherein same reference numbers identify similar structural characteristics or the aspect of the disclosure.
For explaining and illustrative and not limiting purpose, the local of the exemplary of the variable orifice molectron according to the disclosure regards
Figure figure 1 illustrates, and generally to be specified by reference character 100.Variable orifice according to the disclosure is provided in Fig. 2-13
Other embodiments of molectron or its aspect, as will be described.System and method described herein can be used to such as
Uniform pressure and flow distribution is provided between the multiple pipe fittings in the Particle Distribution system such as coal pipeline system.
As shown in fig. 1, microgranule tubing 10 provides and is in fluid communication, for by being connected to flour mill 14 and smelting furnace
Four pipe fittings 12 between 16 are conveying as pulverized particles such as coals.In this example, coal and air are introduced in flour mill,
As indicated by arrow 18.After grinding in flour mill 14, the coal microgranule of pulverizing is brought into and is delivered to segmentation from flour mill 14
In the air stream of device 20, air-flow is divided in four coal pipes 12 described dispenser, and wherein the number of pipe fitting is here to illustrate
Mode is given.Each pipe fitting 12 end is connected at the respective nozzle 22 of smelting furnace 16 inner side, and coal and air burn in described smelting furnace, and
And waste gas presses the indicated outflow of arrow 24.For guaranteeing the uniform pressure between four pipe fittings 12 and flowing so that active combustion, each
Pipe fitting 12 includes corresponding variable orifice molectron 100.Each variable orifice molectron 100 is also configured to promote granule and air stream to exist
Being uniformly distributed in its corresponding pipe fitting.
With reference now to Fig. 2, each variable orifice molectron 100 includes housing 102, and described housing defines flow orifice 104.Housing
102 fluid flow communication are connected between two pipe fittings (for example, pipe fitting 106 and 108), and described pipe fitting is respectively the upstream of pipe fitting 12
Part and downstream part, as shown in Figure 3.Pipe fitting 106 and 108 is arranged to be conducted through described pipe fitting in the axial direction
Microgranule and gas mixed flow.First pipe fitting 106 and the second pipe fitting 108 each have internal diameter, described internal diameter be equal to or substantially
The diameter of the upper flow orifice 104 being equal to variable orifice molectron 100.Each of first pipe fitting 106 and the second pipe fitting 108 can quilts
(for example, being welded together with flange or bolt connection) is installed to the respective housings ring of housing.
Molectron 100 includes multiple blades 110, and described blade is each pivotally mounted to housing 102, so that in such as Fig. 2
Shown in advanced position and extended position as shown in Figure 4 between pivot.Be given by way of example to go out as seen in figs. 2-5
The configuration with three blades 110 because it will be easily realized by persons skilled in the art that without departing from the scope of the present disclosure
In the case of, it may include any suitable number of blade.Each blade 110 includes gas path edge 112.
In figs 2 and 3 in shown advanced position, the flow orifice of the gas path edge of blade 110 112 and housing 102
104 are consistent.The gas path edge 112 of each blade 110 bends along circular arc, and described circular arc has approximately equal to flow orifice
The diameter of 104 diameter.In advanced position, the gas path edge 112 of each blade 110 is generally neat with flow orifice 104
Flat.In figures 4 and 5 in shown extended position, blade 110 radially inwardly stretches from the flow orifice 104 of housing 102.Each
The gas path edge 112 of blade 110 is spaced apart with other blades 110 in extended position, and therefore blade 110 is not adjacent each other
Connect or overlapping.
Housing 102 may include the separate housing ring 114 of a pair of the axially spaced-apart identifying in Fig. 3 and 5, and described housing ring is by it
Between multiple pads 116 be bonded together.In this example, there are three pads 116,110 1, each blade.Pad
Piece 116 is spaced separately in the circumferential, thus replacing with blade 110 in the circumferential.Pad 116 is installed into respect to housing
Ring 114 is fixing.
Blade 110 each via corresponding pivotal pin 122 axially pivoting be arranged between housing ring 114, described pivotal pin
Extend axially through each of housing ring 114 and respective vanes 110.Pivotal pin 122 is installed into be protected with respect to housing ring 114
Hold fixation, i.e. the pivot axis of pin 122 are fixing, even if pin 122 is also such around the rotation of described axis.
Housing 102 also includes outer shroud 118, described outer shroud have neighbouring pin 122 corresponding discrepancy opening (in figures 2 and 4 by
It is shown as being covered by the lid 120 that comes in and goes out), each respective vanes 110 pivots around described pin.This is allowed for the discrepancy safeguarded, example
As being used for removing the particulate of accumulation from blade 110 rear, and for example, if blade 110 weares and teares or damages, then be used for
Change blade.
Each blade 110 includes associated actuators 124, and respective vanes 110 be may be operably coupled to shell by described actuator
Body 102, to move described blade 110 independent of other blades 110.Each actuator 124 is had and is engaged with the screw thread of outer shroud 118
And engage with the revolution of respective vanes 110.This configuration allows the independent adjustment of the position to each blade 110, thus needing
Compensating can be favourable in the application of the unsymmetry of distribution of particles in given pipe fitting 12.The position of any given blade 110
Put and indicated by the degree that actuator 124 protrudes from outer shroud 118.Optionally, actuator 124 may be connected directly to pin 122 to rotate
Pin 122, if described pin is rigidly connected to blade 110, then will rotating vane 110 then.
With reference now to Fig. 6, it is also contemplated that blade can be operatively coupled together by connector, for blade
Synchronization activate.Molectron 200 includes housing 202, blade 210, pin 222 and pad 216 substantially as described above, wherein joins
Fitting 226 is used for the position of Synchronous Leaf 210.Connector 226 includes synchronous ring 228, and described synchronous ring is by means of corresponding push rod
230 connect to each respective vanes 210.Each push rod 230 is pivotally connected to respective vanes 210, and with synchronous ring 228 in
The respective cams groove 232 being defined slidably engages.Synchronous ring 228 can for example pass through gear or the cylinder 234 of neighbouring molectron 200
Rotatably it is engaged to the pipe fitting 12 being found in Fig. 1 not shown in Fig. 6.It is attached to the lever of one of gear or cylinder 234
236 can activate on the direction indicated by the double-head arrow in Fig. 6, so that synchronous ring 228 to be rolled on gear or cylinder 234, from
And along cam path 232 pusher 230 to bounce back or to stretch blade 210.It is installed into the instruction fixing with respect to housing 202
Device 238 may be used to determine the position of blade 210.Actuator described herein is given by way of example, and this area skill
Art personnel will readily appreciate that, without departing from the scope of the disclosure, can use the manual of any other suitable type
Or mechanization actuator.
The limiter of limiter (for example, actuator described herein), pad 116 or any other suitable type can
May be operably coupled to blade, to limit the traveling of blade (for example, blade 110 and 210), thus preventing blade in flow orifice
Run into each other in (for example, hole 104) or contact.Limiter can be configured to prevent each blade to described blade corresponding pivot
The relative free end of turning point (for example, pin 122) reaches, runs into or intersect at the centrage through respective pivot in hole.For example,
In figures 2 and 4, the end 111 (orienting as Fig. 2 and 4) of the blade 110 extending from pin 122 at the top of housing 102
The vertical center line c extending through described pin 122 cannot be extended beyond.For example, blade can have in full extended position jointly
Have in entrance flow orifice at utmost, most the 50% of the flow region in described at utmost block flow hole, for example, wherein
The back edge of blade 110 is just in housing ring 114.
With reference now to Fig. 7-10, illustrate to be similar to very much above with respect to the another exemplary molectron described by molectron 200
300, described molectron has the another exemplary version of system of connections 326.Connector 326 includes connecting rod, and described connecting rod pivots
Pin 322, then drives and is similar to very much blade 310 as above.The connecting rod 327 of connector 326 head and the tail at pivot fitting 323
Connect, for the synchronization of blade movement.The extension 329 of one of connecting rod 327 can be used to for example manually drive connection
Part 326, or drive connector 326 using mechanical, electric, hydraulic pressure, pneumatic or similar type actuator.Each blade 310
Its respective pins 322 neighbouring partly in turf block (divot) 351 be shaped to full extension shown in Fig. 10
The accordingly tip 311 of adjacent blades is accommodated in position.
With reference now to Figure 11-12, although embodiments above is it is contemplated that have blade on the monolayer of respective sets component, such as scheme
Shown in 3, but for example when the blade in common layer is adjacent to each other in extended position, this can limit the traveling of blade.In group
In component 400, blade 410 is built in many levels, so that in extended position shown in fig. 13, the end of blade
411 are possible to its adjacent blades adjacent 410 overlapping.Can notice in the diagram even in lap position, each blade 410
End 411 need not extend from exceeding centrage (for example, the centrage c) through its respective pins 422.
Variable aperture apparatus are important, for example, supply flour mill system to be used for the primary air of distribution between balance combustion device pipeline
Stream.Conventional equipment may be mounted to that on each single burner pipeline, and wherein variable orifice controls the burner pipeline on pipeline
Pressure drop is to change the air stream by each burner pipeline.As the routine variable orifice such as butterfly valve-type or sliding gate valve-type sets
Meter, it produces biasing coal stream when equilibrium air stream, or coal particle is deflected into coal tube wall.This non-concentric air and coal are in hole
Produce premature abrasion on the coal pipe in downstream, and also cause air and coal flow point layer.
The principle that device applies similar in appearance to the camera aperture concept using multiple blades as disclosed herein is come very
Normal incidence realizes variable orifice.Aperture configuration produces the concentric coal and air stream by variable orifice, and therefore provides the uniform of downstream
Stream mode, to eliminate the premature abrasion of coal pipe.It is associated with suitable primary air source, device as described in this article can be by
Main air flow distributed controll is in the range of such as 3% to 8% deviation.With suitable comminution of fuel distributor and/or variable coal
The device disclosed herein of torrent combination can become the coal balancing between coal pipe and airflow distribution to meet low nox combustion
Burner performance requirement is thus realizing burning and discharging the final solution reducing.
The potential advantage that device disclosed herein is better than conventional apparatus includes: produces concentric air and coal stream mode
True hole design, reduce or eliminate impact to coal pipe wear-out life, reduce or eliminate air and coal flow point layer, be easier and more
Adjustment, the valve plate (for example, blade) being made up of high-abrasive material and be used for reducing/minimize requirements of installation space on reliable pipeline
Removable slim design, and be used for the customizable design that is connected with existing coal pipe.
Because the obstruction being provided by blade can be generally axisymmetric, the distribution of particles in given pipe fitting is shown
Write improvement and be better than conventional variable hole.System and method described herein are not only provided for being pressed between multiple pipe fittings
Power equalizes, and in addition described system and method can potentially improve the granule flow distribution in single pipe fitting.
There is provided the variable orifice with advantageous property with the disclosed method shown in accompanying drawing and system as described above
Molectron, described advantageous property includes compared with conventional variable hole, the improvement distribution of particles in single pipe fitting.The side of the disclosure
Method and system provide a kind of instrument, and described instrument produces pressure drop and do not make granule/air mixture deformation, and for example can prevent
Coal/air mixture the profile of deformation corrodes coal pipeline in the direct downstream of variable orifice.
Compared with the design of conventional variable hole, disclosed method and system can maintain for realizing the air stream between pipe fitting
The concentric coal of any suitable channel system required for balance and air stream.This feature can reduce or eliminate typically by tradition
Problem produced by air stream bascule, the such as premature abrasion to the coal pipe in bascule downstream, and pass through described device
When solid particle or air stream layering.In conventional systems, for preventing premature abrasion, the coal pipe in conventional apparatus downstream needs to make pottery
Porcelain liner, can eliminate described ceramic-lined cost using system and method disclosed herein.
Although have shown and described equipment and the method for the disclosure, those skilled in the art with reference to preferred embodiment
Will readily appreciate that, without departing from the scope of the disclosure, described embodiment can be changed and/or change.
Claims (20)
1. a kind of variable orifice molectron, comprising:
Housing, it defines the flow orifice through described housing, and is configured to fluid flow communication and is connected to granule induction system
In two pipe fittings between；And
Multiple blades, it is pivotally mounted to described housing to pivot between advanced position and extended position, each leaf packet
Include gas path edge, wherein in described advanced position, the described gas path edge of described blade and described flow orifice phase
Symbol, and in described extended position, described blade inwardly stretches from described flow orifice.
2. molectron as claimed in claim 1, wherein said housing includes a pair of separate housing ring of axially spaced-apart, described shell
Body ring is bonded together by the multiple pads between them.
3. molectron as claimed in claim 2, wherein said pad is spaced separately in the circumferential, thus in the circumferential with
Described blade alternate.
4. molectron as claimed in claim 2, wherein said blade is axially pivotally mounted between described housing ring.
5. molectron as claimed in claim 4, wherein each blade are from corresponding pivot pin to being pivotally mounted on described shell
Between body ring, described pivotal pin extends axially through each of described housing ring and described respective vanes.
6. molectron as claimed in claim 5, wherein said pivotal pin is installed into be fixed with respect to the holding of described housing ring.
7. molectron as claimed in claim 2, wherein said pad is installed into be fixed with respect to described housing ring.
8. molectron as claimed in claim 2, wherein limiter may be operably coupled to described blade, to limit described blade
Traveling thus preventing described blade from running into each other or contact in described flowing in the hole.
9. molectron as claimed in claim 8, wherein said limiter being configured to prevent each blade with described blade
The relative free end of respective pivot reach, run into or intersect at the centrage through described respective pivot in described hole.
10. the described gas path edge of molectron as claimed in claim 1, wherein each blade bends along circular arc.
11. molectrons as claimed in claim 10, wherein said circular arc has the diameter of approximately equal to described flow orifice
Diameter.
12. molectrons as claimed in claim 11, wherein in described advanced position, the described gas path side of each blade
Edge is generally flushed with described flow orifice.
13. molectrons as claimed in claim 1, wherein each blade include associated actuators, and described actuator is by described leaf
Piece may be operably coupled to described housing, to move described blade independent of other blades.
14. molectrons as claimed in claim 1, it further includes connector, and described connector will be operable for described blade
Link together, for activating to the synchronization of described blade.
15. molectrons as claimed in claim 1, wherein said housing includes outer shroud, and described outer shroud has corresponding adjacent to each
The corresponding discrepancy opening of blade.
16. molectrons as claimed in claim 1, wherein said blade has entrance institute in described full extended position jointly
State in flow orifice at utmost, most the 50% of the described flow region at utmost blocking described flow orifice.
A kind of 17. microgranule tubings, comprising:
First pipe fitting, it is arranged to be conducted through the microgranule of described first pipe fitting and the mixing of gas in the axial direction
Stream；
Second pipe fitting, it is arranged to be conducted through the mixed of the microgranule of described second pipe fitting and gas on described axial direction
Interflow；And
Variable orifice molectron, comprising:
Housing, it is installed to connect described first pipe fitting and described second pipe fitting for from described first pipe fitting to described
The fluid communication of two pipe fittings, described housing defines the flow orifice through described housing；And
Multiple blades, it is pivotally mounted to described housing to pivot between advanced position and extended position, each leaf packet
Include gas path edge, wherein in described advanced position, the described gas path edge of described blade and described flow orifice phase
Symbol, and in described extended position, described blade inwardly stretches from described flow orifice.
18. systems as claimed in claim 17, wherein said first pipe fitting and described second pipe fitting each have internal diameter, described
Internal diameter is equal to the diameter of the described flow orifice of described variable orifice molectron.
19. systems as claimed in claim 17, wherein said housing includes a pair of separate housing ring of axially spaced-apart, described shell
Body ring is bonded together by the multiple pads between them, and each of wherein said housing ring is mounted to described first pipe
In part and described second pipe fitting corresponding one.
20. systems as claimed in claim 19, wherein each housing ring are soldered to described first pipe fitting and described second pipe
In part corresponding one.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/807,250 US9821966B2 (en) | 2015-07-23 | 2015-07-23 | Concentric flow variable orifices for gas and particulate flow balance |
| US14/807,250 | 2015-07-23 | ||
| US201562199746P | 2015-07-31 | 2015-07-31 | |
| US62/199,746 | 2015-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106369627A true CN106369627A (en) | 2017-02-01 |
| CN106369627B CN106369627B (en) | 2020-03-27 |
Family
ID=57880656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610556660.7A Expired - Fee Related CN106369627B (en) | 2015-07-23 | 2016-07-14 | Concentric flow variable orifice for gas and particulate flow balance |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN106369627B (en) |
| AU (1) | AU2016206237A1 (en) |
| DO (1) | DOP2016000178A (en) |
| PH (1) | PH12016000234B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888462A (en) * | 2019-11-29 | 2020-03-17 | 北京航天试验技术研究所 | Fluid water hammer pressure adjusting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2649272A (en) * | 1950-03-31 | 1953-08-18 | Robert C Barbato | Iris type valve construction |
| US4513948A (en) * | 1981-01-14 | 1985-04-30 | Koenig Reinhard | Diaphragm regulating valve |
| US5576792A (en) * | 1995-05-19 | 1996-11-19 | Eastman Kodak Company | Method for assembling an iris diaphragm |
| WO2000052366A1 (en) * | 1999-03-03 | 2000-09-08 | Power & Industrial Services Corporation | Variable orifice dual gate valve |
| US8316820B1 (en) * | 2010-11-05 | 2012-11-27 | Edward Cammarata | Throttle providing unobstructed air flow path when fully open and vortex generating configuration when partly open |
-
2016
- 2016-06-22 PH PH12016000234A patent/PH12016000234B1/en unknown
- 2016-07-14 CN CN201610556660.7A patent/CN106369627B/en not_active Expired - Fee Related
- 2016-07-19 DO DO2016000178A patent/DOP2016000178A/en unknown
- 2016-07-19 AU AU2016206237A patent/AU2016206237A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2649272A (en) * | 1950-03-31 | 1953-08-18 | Robert C Barbato | Iris type valve construction |
| US4513948A (en) * | 1981-01-14 | 1985-04-30 | Koenig Reinhard | Diaphragm regulating valve |
| US5576792A (en) * | 1995-05-19 | 1996-11-19 | Eastman Kodak Company | Method for assembling an iris diaphragm |
| WO2000052366A1 (en) * | 1999-03-03 | 2000-09-08 | Power & Industrial Services Corporation | Variable orifice dual gate valve |
| US8316820B1 (en) * | 2010-11-05 | 2012-11-27 | Edward Cammarata | Throttle providing unobstructed air flow path when fully open and vortex generating configuration when partly open |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110888462A (en) * | 2019-11-29 | 2020-03-17 | 北京航天试验技术研究所 | Fluid water hammer pressure adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| DOP2016000178A (en) | 2018-01-31 |
| AU2016206237A1 (en) | 2017-02-09 |
| PH12016000234A1 (en) | 2018-01-08 |
| PH12016000234B1 (en) | 2018-01-08 |
| CN106369627B (en) | 2020-03-27 |
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