CN104884577A - Exhaust flow modifier, duct intersection incorporating the same, and methods therefor - Google Patents
Exhaust flow modifier, duct intersection incorporating the same, and methods therefor Download PDFInfo
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- CN104884577A CN104884577A CN201280078042.6A CN201280078042A CN104884577A CN 104884577 A CN104884577 A CN 104884577A CN 201280078042 A CN201280078042 A CN 201280078042A CN 104884577 A CN104884577 A CN 104884577A
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- 239000011819 refractory material Substances 0.000 claims description 9
- 230000006872 improvement Effects 0.000 claims description 7
- 208000012868 Overgrowth Diseases 0.000 claims description 4
- 238000011960 computer-aided design Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 31
- 238000005516 engineering process Methods 0.000 description 29
- 239000012530 fluid Substances 0.000 description 29
- 239000000571 coke Substances 0.000 description 14
- 238000013461 design Methods 0.000 description 14
- 210000005239 tubule Anatomy 0.000 description 14
- 239000003546 flue gas Substances 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 10
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B15/00—Other coke ovens
- C10B15/02—Other coke ovens with floor heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/04—Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/14—Diverting flow into alternative channels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Pipe Accessories (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to a duct intersection comprising a first duct portion and a second duct portion extending laterally from a side of the first duct portion. At least one flow modifier is mounted inside one of the first and second duct portions. The flow modifier is a contoured duct liner and/or the flow modifier includes at least one turning vane. The duct intersection may also include a transition portion extending between the first and second duct portions, wherein the transition portion has a length extending along a side of the first duct portion and a depth extending away from the side of the first duct portion, wherein the length is greater than a diameter of the second duct portion.
Description
Technical field
This technology typically points to the apparatus and method for regulating pipeline fluid flow inside.More specifically, some specific embodiment relates to the flow conditioner and the transition portion that are improved the exhaust-gas flow of discharging from pit kiln by pipeline monitor device.
Background technology
Coke is a kind of solid carbonaceous fuels deriving from coal.Due to the impurity that it is relatively less, coke is all welcome energy sources in various practical purposes.Such as, coke is used to smelt iron ore in steelmaking process of being everlasting.In another example, coke also can be used to heating commercial building or drives Industrial Boiler.
In typical coke making process, a large amount of coals is fired in pit kiln, and temperature is wherein usually more than 2000 Fahrenheit degrees.Impurity phase is transformed into the coke containing relatively less impurity by sintering procedure to high coal.At the end of sintering procedure, coke appears in pit kiln with the form of complete a piece substantially usually.Usually shifted out from pit kiln by coke, (such as, heat carries compartment to load one or more compartment, quenching compartment, or compartment is carried/quenched to the heat of combination), and transport to quenching tower to its cooling or " quenching ", can dispensing be transported, use as fuel source.
Hot waste gas (such as flue gas) is discharged from pit kiln by the network be made up of pipeline, intersection and transition apparatus.Skewing mechanism in the flow of flue gas path of coke plant can cause serious pressure drop penalty, the flow region of poor efficiency (such as static, stagnation, backflow, separation etc.), and air mixes with the bad of volatile matter.High pressure decline loss causes the draft of requirements at the higher level, and this can cause leaking and more unmanageable system further.In addition, due to localized attack and the thermal wear of acceleration, the local hot spots of bad mixing and generation can cause structural degraded faster.Corrode and comprise because flow at high speed corrodes the material property decline caused.Hot spot can cause the thermal destruction of material, finally causes hot/structural failures.This localized attack and/or hot spot energy then cause the damage of pipeline monitor.Such as, the draft flue of coke-oven plant and the infall of cross manifold are easily subject to the impact that bad mixing/air-flow scatters, and it can cause the generation of hot spot, causes channel failure further.
Traditional pipeline monitor design also can cause serious pressure drop penalty, and this loss can be limited in the quantity of the pit kiln connected together in single group.The draught fan of coke-oven plant can drive great draft also to there is restriction.Pressure drop in pipeline monitor device can reduce discharging the available draft amount of flue gas in coke oven battery.
These and other design relevant problem to traditional pipeline monitor and can cause extra capital expense.Therefore, just there are such needs to provide the pipeline monitor/transition apparatus of improvement, such device can improve mixing, the air-flow distribution of gas, poor efficiency yield zone (such as static, stagnation, backflow, separation etc.) is minimized, and reduce pressure drop penalty at infall, thus improve the running of coke-oven plant and reduce design potentially, build and run the cost of coke-oven plant.
General introduction
Present technology provides special-shaped pipeline liner, turning vane, transition portion, pipeline monitor device and improve the method for gas flow in exhaust system.In one exemplary embodiment, pipeline monitor device comprises the second pipe part of the first pipe section and the side horizontal expansion from described first pipe section.Described second pipe part can be connected to described first pipe section T-shapedly.Described second pipe part can angle being less than 90 degree from the side horizontal expansion of described first pipe section.
At least one flow conditioner is placed on one of them inside of described first pipe section and second pipe part.In of technology described by the application, described flow conditioner is special-shaped pipeline liner.In the another aspect of this technology, described flow conditioner comprises at least one turning vane.
In one embodiment, special-shaped pipeline liner comprises the first special-shaped wall mated with inner surface of pipeline and the second special-shaped wall mated with described first special-shaped wall.In the one side of this technology, described special-shaped pipeline liner can be installed in the first tube section interior.In the another aspect of this technology, described special-shaped pipeline liner is installed in second pipe partial interior.Described second special-shaped wall can comprise refractory materials.
In another embodiment, special-shaped pipeline liner comprises the first wall forming the profile matched with pipeline monitor device internal surface and the second wall be connected with described first wall.Described second wall forms contoured to change the air flow line in pipeline monitor device.In of this technology, described second wall comprises at least one convex surface.
In another embodiment, pipeline monitor device comprises the second pipe part of the first pipe section and the side horizontal expansion from described first pipe section.Transition portion extends between described first pipe section and second pipe part, and wherein said transition portion has the length that the side along described first pipe section extends and the degree of depth of stretching from the described epitaxial lateral overgrowth of described first pipe section.In one embodiment, described length changes with the diameter change of described second pipe part.In another embodiment, described length is greater than the diameter of described second pipe part.In another embodiment, described length is the twice of the described degree of depth.
Present invention also provides a kind of coking equipment exhaust system.In one embodiment, described exhaust system comprises emergent vapor pipe and the cross manifold from described emergent vapor pipe side horizontal expansion.This system also comprises special-shaped pipeline liner, and it comprises the first wall mated with described emergent vapor pipe internal surface and the second wall be connected with described first wall.Described second wall forms contoured to change the direction of the air-flow of close described emergent vapor pipe and cross manifold intersection.Described exhaust system also comprises the second special-shaped pipeline liner matched with described cross manifold internal surface.
The application also relates to the method improving gas flow in exhaust system.In one embodiment, described method can be included in pipeline monitor device inside determine poor efficiency yield zone (such as static, stagnation, backflow, separation etc.) position and in described pipeline monitor device determined position flow conditioner is installed.In of disclosure technology, described position is determined by computer aided design system, such as Fluid Mechanics Computation (CFD) system.In the another aspect of disclosure technology, described position by determining at described pipeline monitor device place measuring condition, such as temperature, pressure and/or speed.
In another embodiment, improve the method comprising gas flow in the exhaust system of at least one pipeline monitor device be included in the position of determining poor efficiency yield zone in described pipeline monitor device and in described pipeline monitor device, inject liquid in determined position.
After the specific embodiments and the drawings part considering the application, these and other aspect of disclosure technology will clearly.But; it is to be appreciated that; protection scope of the present invention should be determined by the claim proposed, and unspecific theme whether process arbitrary or all problems of mentioning in background technology part or whether comprise any feature that this overview section mentions or in.
Accompanying drawing explanation
Comprise the equipment of preferred embodiment, system, method non-limiting and Non-exhaustive embodiment by by the following drawings with reference to being described, wherein same reference numbers refers to same section throughout each view, unless otherwise specified.
The schematic diagram of Tu1Shi coke-oven plant;
Fig. 2 is typical pit kiln and the schematic diagram of the exhaust system be connected;
Fig. 3 is the cross-sectional side view that emergent vapor pipe and cross manifold intersect, and shows the various flow abnormalities near intersection;
Fig. 4 is the cross-sectional side view of the pipeline monitor device according to exemplary embodiment;
The skeleton view extending to the blower fan collecting tubule of main exhaust from pipeline fan of Tu5Shi coke-oven plant;
Fig. 6 is the cross-sectional side view of traditional blower fan collecting tubule, shows the speed of the gas by collecting tubule and main exhaust;
Fig. 7 is the cross-sectional side view of blower fan collecting tubule of improvement, shows the speed of the gas by collecting tubule and main exhaust;
Fig. 8 is the cross-sectional side view of the guide vane (IGV) assembly according to exemplary embodiment;
Fig. 9 is the skeleton view of the guide vane (IGV) assembly shown in Fig. 8;
Figure 10 is the cross-sectional side view of the blower fan collecting tubule according to exemplary embodiment, shows the speed of the gas running through collecting tubule and main exhaust;
Figure 11 A is the front elevational schematic of the pipeline monitor device according to exemplary embodiment;
Figure 11 B is the schematic side view of the pipeline monitor device shown in Figure 11 A;
Figure 12 A is the front elevational schematic of the pipeline monitor device according to exemplary embodiment;
Figure 12 B is the schematic side view of the pipeline monitor device shown in Figure 12 A;
Figure 13 is the side-view of the pipeline monitor device according to another exemplary embodiment;
Figure 14 is the schematic diagram of the fluid injection system used in pipeline monitor device;
Figure 15 A is the skeleton view of the middle waste heat boiler (HRSG) be connected at joint with transition piece;
Figure 15 B is the side-view of the middle waste heat boiler (HRSG) be connected at joint with transition piece;
Figure 15 C is the skeleton view of the middle waste heat boiler (HRSG) be connected at joint with transition piece;
Figure 15 D is the vertical view of the middle waste heat boiler (HRSG) be connected at joint with transition piece;
Specific embodiment
Present technology provides special-shaped pipeline liner, pipeline monitor device and improve the method for gas flow in exhaust system.Described embodiment can be used as original design or realizes as to the transformation of already present equipment.Have been found that disclosure design is used to improve the gas flow of skewing mechanism or joint, thermal conditions and structural integrity in pit kiln or similar system.By optimizing outside and/or the interior shape of skewing mechanism, the mixing energy of gas accesses improvement, and the region being in relative undesirable condition can minimize, and the pressure drop penalty of infall also can minimize.The pressure-losses reducing infall can play the effect reducing ventilation set-point, and this can produce the effect of evolutionary operation, and reduces costs design and maintenance cost potentially.Further, it can be conducive to making the ventilation set-point of whole system to minimize, thus makes any unwanted extraneous gas system of infiltrating drop to minimum.
The detail of some embodiments of this technology describes with reference to following Fig. 1-14.Other details describing well-known structure and the system be usually associated with coking and/or piping design does not disclose middle proposition at following, occurs unnecessary ambiguous with the description of the various embodiments avoiding this technology.Many details, size, angle and further feature is in the accompanying drawings only the explanation of the specific embodiment to this technology.Thus other embodiment also can have other details, size, angle and feature when not deviating from essence or the scope of this technology.Therefore, the ordinary skill of art correspondingly can understand this technology can exist other embodiment with additional element, or this technology can exist other embodiment do not possessed with reference to some features of showing and describing in following Fig. 1-14.
Shown in Fig. 1 is a typical coke-oven plant, and wherein, coal 1 is admitted to coke oven battery 10, in coke oven battery, obtain coke by heating coal.The waste gas (such as flue gas) of discharging from pit kiln is collected in the common-use tunnel 12 crossing with emergent vapor pipe 14.Crossing pipeline 16 is also connected with common-use tunnel 12 by emergent vapor pipe 14.Heat smoke flows into cogeneration power plant 18 by crossing pipeline 16, and this power plant comprises the waste heat boiler (HRSG) 20 supplying steam turbine 22 conversely.These flue gases continue to flow into sulphuring treatment facility 24.Finally, the waste gas after process is discharged by main exhaust 28 via pipeline fan 26.Except the air-flow that the expellant gas that risen by main exhaust 28 is produced, this pipeline fan provides negative pressure for whole system.
Just can understand pit kiln 10 with further reference to Fig. 2 is be connected to shared pathway 12 by upcast 15.Common-use tunnel 12 is along the top horizontal-extending of pit kiln 10.Emergent vapor pipe 14 vertically extends along common-use tunnel 12 as shown in the figure.Crossing pipeline 16 is in emergent vapor pipe 14 at pipeline monitor device 30 and intersects.In normal operation, emergent vapor pipe 14 is in closing condition, and waste gas flows into cogeneration power plant 18 (see Fig. 1) by crossing pipeline 16.When the equipment generation problem of cogeneration power plant 18 or other latter stage, emergent vapor pipe 14 can be opened, thus allows waste gas directly to discharge.Although the common-use tunnel 12 shown in figure and crossing pipeline 16 intersect at different heights with emergent vapor pipe 14, common-use tunnel 12 and crossing pipeline 16 also can intersect at identical height with emergent vapor pipe 14.In addition, disclosure technology can be used for no matter it is the skewing mechanism being in equal height or different heights.
Shown in Fig. 3 is appear at traditional pipeline monitor device, as pipeline monitor device 30, in various flow abnormalities.Flow abnormalities 32 is the partial combustion points because poor efficiency flowing/distribution causes.Another poor efficiency dispersion zone 36 that flows/mix is positioned at emergent vapor pipe 14 in the face of crossing pipeline 16 place.Poor efficiency yield zone 34 (such as static, stagnation, backflow, separation etc.) is positioned at crossing pipeline 16.These poor efficiency flow regions are containing separative gas flow, and it can consume the useful energy of flow.These potential poor efficiency fluid-spaces also can comprise unwanted, unstable eddy current.These eddy current sometimes can strengthen because of buoyancy or chemical reaction, and it can cause unwanted, the undesirable sound, the harmonic wave forced, potential flow instability, and incorrect meter reading.If measured not having the poor efficiency yield zone that gas in pipelines flows under representational condition, incorrect meter reading just may occur.Because the essence of these poor efficiency yield zones is like this, so these regions also can cause dropping and promoting particle packing of particle.
Shown in Fig. 4 is the pipeline monitor device 130 of improvement according to exemplary embodiment.Pipeline monitor device 130 comprises with the first pipe section of emergent vapor pipe 114 form appearance and comprises the second pipe part occurred with crossing pipeline 116 form, and it is from the side horizontal expansion of described emergent vapor pipe 114.In the present embodiment, pipeline monitor device 130 comprises multiple flow conditioner (40,42,44) to improve exhaust-gas flow.Such as, flow conditioner 40 is mounted in the form of the special-shaped pipeline liner of the intersection 130 of emergent vapor pipe 114 and crossover device 116.Region occupied by flow conditioner 40 just in traditional design poor efficiency flowing and gas and vapor permeation there is part, such as, flow abnormalities 32 shown in Fig. 3.Flow conditioner 42 is arranged in crossing pipeline 116, to occupy the poor efficiency yield zone 34 shown in Fig. 3.Flow conditioner 44 is arranged on the opposite of crossing pipeline 116 in emergent vapor pipe 114, in this case, occupies the poor efficiency mixing dispersion zone 36 shown in Fig. 3.After increase flow conditioner 40,42,44, the air-flow F in skewing mechanism 130 is improved (see Fig. 4).
These pipe linings have reinvented the in-profile of pipeline, except some other impact, change essence and the direction of flowing-path inherently.Pipe lining can be used for level and smooth or improve flowing entrance, or for providing better transition from a paths to another, particularly when doing existence restriction like this to pipe shape.Special-shaped pipeline liner can be used for alleviating the wall shear stress come from caused by two-forty and the particle packing come from caused by sedimentation and/or particle collision, and it can cause slowly or poor efficiency yield zone.Special-shaped pipeline liner is also for alleviating of concentrating of better flowing transition and movement, stress and heat and the alleviation etc. of flow separation provides better pipeline transition portion or path.
Continue just can understand with reference to figure 4, in the present embodiment, special-shaped pipeline liner 40,42,44 comprises the first special-shaped wall mated with pipeline monitor device internal surface and the second special-shaped wall mated with described first special-shaped wall separately.Such as, special-shaped pipeline liner 40 comprises the first special-shaped wall 50 mated with the internal surface 17 of emergent vapor pipe 114 and the internal surface 19 of crossing pipeline 116.Pipe lining 40 also comprises the second special-shaped wall 52 mated with described first special-shaped wall 50.In this instance, described second special-shaped wall 52 is convex surfaces, and extends to the flue gas stream F flowed by pipeline monitor device 130.Special-shaped pipeline liner 42 comprises the first special-shaped wall 54 mated with the internal surface 19 of crossing pipeline 116.Second special-shaped wall 56 matches with described first special-shaped wall 54, and is also convex surface.Similar, special-shaped pipeline liner 44 comprises the first special-shaped wall 58 mated with the internal surface 17 of emergent vapor pipe 114 and the second special-shaped wall 60 mated with described first special-shaped wall 58.
First special-shaped wall of these special-shaped pipeline liners the similar mode such as to be fastened by welding, button and is connected to internal surface 17 and 19.Similarly, the second special-shaped wall is connected to their respective first special-shaped walls by the mode of suitable fastener or welding.Routine techniques personnel as art are familiar with, and special-shaped pipeline liner can comprise the various material be suitable under corrosive, hot conditions.Such as, the first special-shaped wall 50,54,58 can comprise steel or other suitable material.Second special-shaped wall 52,56,60 can comprise refractory materials, such as pottery, and it can resist the high temperature produced along with flue gas and partial combustion.The heat of flue gas, flowing and chemical property are depended in the selection of material.Because flue gas may have various temperature, speed and chemical constitution, these differences can depend on many factors such as the position in time of such as coking cycle, flow control setting, environmental conditions, residing coke oven arrangement, so Material selec-tion also can be varied.The air retaining wall of hot channel joint has prior flame retardant coating than cold pipeline connection.The selection of suitable material can consider condensation and the particle packing of such as min/max temperature, thermal cycling, chemical reaction, flowing erosion, the sound, harmonic wave, resonance, corrosive chemical.
In one embodiment, flow conditioner can comprise by relatively cheap material construction and cover multilayer liner rindy.In another embodiment, fire-resistant or similar material can be shaped by the mode of spray repair (such as spraying).Can realize being shaped to spray repair better controlling by the mode of small size increment or layering spray repair.In addition, template or mould can be used to auxiliary spray repair shaping.Template, mould or modern cutting technology can be used for the shaping (such as, even if the Main Morphology lacked for internal insert carries out spray repair) of the refractory materials inserting pipeline as inset, and by connecting the spray repair of pipe lining internal layer.In another embodiment, flow conditioner can form entirety along pipeline.In other words, tube wall can be moulded or " recessed " become provide convex surface along inner surface of pipeline.Term convex used herein does not require the surface of continuously smooth, although smooth-flat-surface more suits the requirements.Such as, flow conditioner can extend to the form appearance of the multiaspect projection on flowing-path.Such projection can comprise multiple discontinuous panel or surface.In addition, flow conditioner is not limited to convex surface.Its profile can have the surface of other complexity, and these surfaces are determined by Fluid Mechanics Computation analytical test, and also consider by design, such as cost, space, operational condition etc. are determined.
Shown in Fig. 5 is the conventional fan collecting tubule 70 (see Fig. 1) extending to main exhaust 28 from pipeline fan 26.Blower fan collecting tubule 70 comprises multiple branch 72,74,76, and they all intersect at pumping chamber 80.As shown in the figure, branch 74 and 76 comprises flow diverter 78, and pumping chamber 80 comprises rectifier 79.With reference to figure 6, wherein indicate the rate amplitude in blower fan collecting tubule 70, the design of conventional fan collecting tubule can cause flow at high speed 82, and this flow at high speed can damage pipeline due to shearing force.On the contrary, shown in Fig. 7 is blower fan pumping chamber 180 skewing mechanism, and it comprises guide vane (IGV) assembly 90.In this case, the rate amplitude flowed near main exhaust 128 is significantly less than the conventional pipelines structure shown in Fig. 6.High flow rate 184 moves inward the inwall leaving main exhaust 128, thus reduces the shear-stress of wall, can play and prevent the erosion of vapor pipe and the effect of corrosion.Turning vane in pipeline contributes to guiding flowing-path, brings more effective process.Turning vane can be used in such as better simulation model for mixing gases flows, better guide of flow, alleviates loss of total pressure.
With reference to figure 8 and Fig. 9, guide vane (IGV) assembly 90 comprises intra vane 92 and outer leafs 94.In the present embodiment, interior outer leafs is all arranged in main exhaust 128.Fig. 8 provides the size that exemplary guide vane (IGV) assembly can be built.But these sizes just illustrate, other size and angle also can use.Fig. 9 illustrates intra vane 92 well, and it comprises the front portion 902 be connected with sloping portion 904, and sloping portion 904 then be connected to rear portion 906.As shown in the figure, sloping portion 904 reduces to 80 inches wide gradually from 100 inches wide.Similarly, rear portion 906 also reduces to 50 inches wide gradually from 80 inches wide.Reiterate, size is here only representational, and it may change.In the present embodiment, sloping portion 904 approximately tilts miter angle; But other angle depends on that specific applicable cases also can use.Outer leafs 94 comprises the front portion 908 be connected with sloping portion 910, and sloping portion 910 then be connected to rear portion 912.Outer turning vane 94 also comprises illustrated sidewall 914 and 916.Inwardly sloping portion 910 and rear portion 912 tilt with an included angle A for sidewall 914 and 916 and sloping portion 910 and rear portion 912.In the present embodiment, included angle A is approximately 10 degree.Guide vane (IGV) assembly 90 such as can be installed with suitable fastener or be assemblied in main exhaust 128, or welding in position.
In exemplary embodiment as shown in Figure 10, blower fan collecting tubule pumping chamber 280 is crossing with main exhaust 228 by the transition apparatus on slope.Just can understand in this case, described blower fan collecting tubule pumping chamber 280 has the upper wall 281 being transitioned into main exhaust 228 at a certain angle.Speed size 282 as can be seen in the figure, compares the design of the conventional fan collecting tubule shown in Fig. 5 and Fig. 6, which results in lower flow rate size.Have been found that the connection/transition apparatus of improvement from pipeline fan to main exhaust can reduce wear and corrode, and the dust stratification in main exhaust.Except the transition apparatus on slope, special-shaped pipeline liner and/or turning vane use capable of being combined.Such as, special-shaped pipeline liner can be contained in low-speed region 202,204 and 206 as shown in Figure 10.
Shown in Figure 11 A and 11B is pipeline monitor device 230 according to another exemplary embodiment.In the present embodiment, described pipeline monitor device 230 comprises emergent vapor pipe 214 and crossing pipeline 216, and the transition portion 240 extended between.The size of the conduit cross-sectional area changing near or be in skewing mechanism place can contribute to improving flowing property.The size of usual increase flow cross-sectional area, such as transition portion 240, can contribute to reducing flow losses.For from pipeline to the pipe connecting being positioned at joint or infall, transition portion can contribute to better transition flow.Transition apparatus can be flaring, bending, arc or like this, to provide the flow characteristics of the expectation of infall.In addition, transition portion can carry out converging or shunting for the direction of flowing.Converge and by-passing portions is capable of being combined uses, such as, pipeline can first converge to be shunted or conversely again.Moreover, be to be understood that embodiment can be realized by various combination.Such as, guide vane (IGV) assembly, such as in earlier figures 7-9, can be used for the combination with pipe lining, and no matter whether it assembles or spray repair puts in place, and with the combination of transition portion.
Described transition portion 240 has the length L extended along gas exhaust duct side and the degree of depth D stretched from the described epitaxial lateral overgrowth of gas exhaust duct.In the present embodiment, described length is greater than the diameter of crossing pipeline 216.Described length L can change with pipe diameter d or described degree of depth D and change.Such as, described length L can be the twice of described width D.Shown in Figure 12 A and 12B is the pipeline monitor device 330 comprising transition portion 340.Similar to shown in Figure 11 A with 11B of transition portion 340 in the present embodiment, but comprise the abducent annular region 315 of contiguous skewing mechanism 330 except vapor pipe 314.Shown in Figure 13 is the pipeline monitor device 430 with asymmetric transition portion 440 in another embodiment.According to the design performance expected, outside heat sink can be added and help to improve the heat trnasfer with ambient air.Such as, the outside heat sink being placed on surface can be used to help to reduce hot localised points.
Pipeline monitor device can design, improves or be modified as introducing fluid, liquid, fuel, the rare gas elementes etc. such as such as oxygenant (in order to better burn or remove incomplete combustion product (PIC)), such as water, to help better distributed combustion, to reduce the cooling of focus or permission hot-fluid.Such as, fluid can be introduced provide the frictional belt of a cold inertness fluid, to reduce the focus of affected tube wall surface.Described fluid, it can comprise liquid, inertia or other gases such as such as water, can be used to cooling or slows down some chemical reaction.For introducing fluid, pipeline can be modified as and hold port or extra path.If fluid introduces from pressurized source, also can manufacture and carry effect secretly, improve gas and vapor permeation or the energy of flow whereby.
Shown in Figure 14 is the pipeline monitor device 530 comprising fluid injection system 540.Pipe surface and waste gas, for the specific location injecting fluid at pipeline monitor device 530, to excite or to guide the flowing of air-flow, and are kept apart by fluid injection system 540.Fluid injection system 540 comprises the controller 542 be connected to by wiring on multiple valve or fluid injector 544.Each syringe 544 is connected to container for storing liquid 550 by pipe 546.Should be understood that term fluid herein comprises liquids and gases.Therefore, described injecting systems 540 can by liquid or gas inject exhaust flow.Described syringe can optimize interval according to design conditions.Fluid can laterally be expelled in pipeline by as shown in figure 14, or, axially or along exhaust gas flow direction can inject external fluid at different positions.They also can be different injection angles injecting fluid.Direction and the method for injection depend on the condition that joint and skewing mechanism place possess.The fluid injected can derive from external pressurized source.In another embodiment, fluid is carried secretly away by the draft of exhaust-gas flow by port or valve.
Described fluid injection system 540 also can comprise multiple sensors, is connected to the temperature sensor 552 of controller 542 as by cable 554.Multiple sensors, such as sensor 552, can be controller 542 and provide feedback, to such an extent as to can inject fluid at reasonable time.Although illustrated embodiment only has a temperature sensor, other additional dissimilar sensor also can be used to control feedback for controller 542 provides.Such as, other sensor can comprise pressure, speed and emission sensor, such as oxygen sensor.
Described fluid injection system 540 can use jointly with aforementioned disclosed special-shaped pipeline liner, turning vane and transition portion.The use of pipeline monitor device can be extended to real mixing zone and potential combustion chamber by the special-shaped pipeline liner together used with fluid injection system.Air and other additive (such as oxygen) can inject skewing mechanism to give to burn more fully and to allow passage to use as expansion combustion zone.In addition, mixed uniformly pipeline monitor device can be assembled into the second combustion chamber.The additional air of adding pipeline monitor device mixing zone to can burnout any unnecessary flue gas, even with excessive air or other gas, such as nitrogen, can cool skewing mechanism.Such as, if the overheated and Thorough combustion of common-use tunnel, this process can be cooled toward wherein injecting air.On the contrary, if flue gas did not have Thorough combustion before entering waste heat boiler (HRSG), the pipe of waste heat boiler may just be decomposed.Because these pipes are made by metal usually, so corrosion and the inefficacy of acceleration can be caused.In this case, the ignition dopes such as such as air will be added, burnouted before all combustiblematerialss enter waste heat boiler.
Although aforesaid every embodiment is about the pipeline monitor device between emergent vapor pipe and crossing pipeline, disclosure technology can be applicable to hot channel joint, cold pipeline connection, exhaust fitting and waste heat boiler.Such as, as shown in Figure 15 A-15B, middle waste heat boiler joint can comprise the transition piece (632,634,652) of joint.Pipeline 622 and pipeline 630 couple together by transition piece 632 and 634.Pipeline 630 is connected to rectangular pipe 650 by transition piece 652.
This technology also relates to the method improving gas flow in exhaust system, and described exhaust system comprises at least one pipeline monitor device.Described method can comprise any intrinsic programstep in structure described herein.In one embodiment, described method is included in pipeline monitor device inside and determines low speed or poor efficiency yield zone, inefficient combustion region or poor efficiency mixing region (such as, be in the region of relative undesirable condition) position, and provide flow conditioner in determined position.Flow conditioner is provided to comprise, such as but not limited to, pipe laying liner in pipeline, at pipe interior gunning refractory, installs turning vane in pipeline, forms convex surface along pipeline, and these combination.Described position is determined by computer aided design system, such as Fluid Mechanics Computation (CFD) system.Described position also by determining at pipeline monitor device place measuring condition, such as temperature, pressure and speed.In another embodiment, described method is included in the position of determining poor efficiency yield zone in pipeline monitor device and in pipeline monitor device, injects fluid in determined position.
Although be appreciated that from aforesaid content the specific embodiment of this technology is described in this article in order to illustrate, also various amendment can be made when not deviating from essence and the scope of this technology.In addition, also can combine in other embodiments or eliminate use in some of the new technology described under the linguistic context of specific embodiment.The more important thing is; although the advantage be associated with some embodiment of this technology is described under the linguistic context of those embodiments; but other embodiment also may represent such advantage; and and the embodiment of not all must represent this advantage, within the protection domain just falling into this technology.Therefore, the disclosure and relevant technology can comprise other embodiment clearly not showing or describe herein.So the disclosure is not limited to this except the claim by adding.
Additional example:
1. a pipeline monitor device, comprising:
First pipe section;
Second pipe part, it is from the side horizontal expansion of described first pipe section; And
At least one is placed on the flow conditioner of described first pipe section and one of them inside of second pipe part.
2. pipeline monitor device according to claim 1, wherein said flow conditioner is special-shaped pipeline liner.
3. pipeline monitor device according to claim 2, wherein said special-shaped pipeline liner comprises the first special-shaped wall mated with described inner surface of pipeline and the second special-shaped wall mated with described first special-shaped wall.
4. pipeline monitor device according to claim 3, wherein said second special-shaped wall comprises refractory materials.
5. pipeline monitor device according to claim 2, wherein said second pipe part is connected to described first pipe section T-shapedly.
6. pipeline monitor device according to claim 5, wherein said special-shaped pipeline liner is installed in described first tube section interior.
7. pipeline monitor device according to claim 5, wherein said special-shaped pipeline liner is installed in described second pipe partial interior.
8. pipeline monitor device according to claim 1, wherein said flow conditioner comprises at least one turning vane.
9. pipeline monitor device according to claim 1, wherein said flow conditioner comprises molded refractory materials.
10. pipeline monitor device according to claim 1, wherein said second pipe part is with the side horizontal expansion of an angle being less than 90 degree from described first pipe section.
11. 1 kinds, for the special-shaped pipeline liner of pipeline monitor device, comprising:
Form the first wall of the profile matched with pipeline monitor device internal surface; And
The second wall be connected with described first wall, wherein said second wall forms contoured to change the air flow line in pipeline monitor device.
12. special-shaped pipeline liners according to claim 11, wherein said second wall comprises at least one convex surface.
13. special-shaped pipeline liners according to claim 11, wherein said second wall comprises refractory materials.
14. 1 kinds of coking equipment exhaust system, comprising:
Emergent vapor pipe;
From the crossing pipeline of described emergent vapor pipe side horizontal expansion; And
Special-shaped pipeline liner, it comprises convex surface, and described convex surface operationally changes the direction of the air-flow of close described emergent vapor pipe and crossing pipeline intersection.
15. coking equipment exhaust system according to claim 14, comprise further be positioned over described crossing pipeline internal surface on the second special-shaped pipeline liner.
16. 1 kinds of modified form coking equipment exhaust system, it comprises emergent vapor pipe and the crossing pipeline from described emergent vapor pipe side horizontal expansion, and described improvement comprises:
Special-shaped pipeline liner, it comprises convex surface, and described convex surface operationally changes the direction of the air-flow of close described emergent vapor pipe and crossing pipeline intersection.
17. 1 kinds of methods improving gas flow in exhaust system, described exhaust system comprises at least one pipeline monitor device, and described method comprises:
The position with less desirable flow characteristics is determined in described pipeline monitor device; And
In described pipeline monitor device, determined position provides flow conditioner.
18. methods according to claim 17, wherein said position is determined by computer aided design system.
19. methods according to claim 17, wherein said position is by determining at described pipeline monitor device place measuring condition.
20. methods according to claim 19, wherein said condition is selected from the set be made up of temperature, pressure and speed.
21. methods according to claim 17, wherein said flow conditioner is a kind of special-shaped pipeline liner.
22. methods according to claim 17, wherein said flow conditioner is at least a turning vane.
23. methods according to claim 17, to be included on the internal surface of described pipeline monitor device further described determines position gunning refractory, thus produces convex surface.
24. 1 kinds of pipeline monitor devices, comprising:
First pipe section;
Second pipe part, it is from the side horizontal expansion of described first pipe section; And
The transition portion extended between described first pipe section and second pipe part, wherein said transition portion has the length that the side along described first pipe section extends and the degree of depth of stretching from the described epitaxial lateral overgrowth of described first pipe section, and wherein said length is greater than the diameter of described second pipe part.
25. pipeline monitor devices according to claim 24, wherein said length is the twice of the described degree of depth.
26. pipeline monitor devices according to claim 24, wherein said transition portion flare is opened.
27. pipeline monitor devices according to claim 24, wherein said first pipe section comprises abducent annular region, and described transition portion extends between described abducent annular region and described second pipe part.
28. pipeline monitor devices according to claim 24, wherein said second pipe part is with the side horizontal expansion of an angle being less than 90 degree from described first pipe section.
29. pipeline monitor devices according to claim 24, wherein said second pipe part is connected to described first pipe section T-shapedly.
30. pipeline monitor devices according to claim 24, comprise further and have at least to have a convex surface, be placed on the flow conditioner of one of them inside of described first pipe section and second pipe part.
31. pipeline monitor devices according to claim 30, comprise at least one turning vane further.
32. 1 kinds of methods improving gas flow in exhaust system, described exhaust system comprises at least one pipeline monitor device, and described method comprises:
The position of poor efficiency yield zone is determined in pipeline monitor device; And
Determined position injecting fluid in described pipeline monitor device.
Claims (32)
1. a pipeline monitor device, comprising:
First pipe section;
Second pipe part, it is from the side horizontal expansion of described first pipe section; And
At least one is placed on the flow conditioner of described first pipe section and one of them inside of second pipe part.
2. pipeline monitor device according to claim 1, wherein said flow conditioner is special-shaped pipeline liner.
3. pipeline monitor device according to claim 2, wherein said special-shaped pipeline liner comprises the first special-shaped wall mated with described inner surface of pipeline and the second special-shaped wall mated with described first special-shaped wall.
4. pipeline monitor device according to claim 3, wherein said second special-shaped wall comprises refractory materials.
5. pipeline monitor device according to claim 2, wherein said second pipe part is connected to described first pipe section T-shapedly.
6. pipeline monitor device according to claim 5, wherein said special-shaped pipeline liner is installed in described first tube section interior.
7. pipeline monitor device according to claim 5, wherein said special-shaped pipeline liner is installed in described second pipe partial interior.
8. pipeline monitor device according to claim 1, wherein said flow conditioner comprises at least one turning vane.
9. pipeline monitor device according to claim 1, wherein said flow conditioner comprises molded refractory materials.
10. pipeline monitor device according to claim 1, wherein said second pipe part is with the side horizontal expansion of an angle being less than 90 degree from described first pipe section.
11. 1 kinds, for the special-shaped pipeline liner of pipeline monitor device, comprising:
Form the first wall of the profile matched with pipeline monitor device internal surface; And
The second wall be connected with described first wall, wherein said second wall forms contoured to change the air flow line in pipeline monitor device.
12. special-shaped pipeline liners according to claim 11, wherein said second wall comprises at least one convex surface.
13. special-shaped pipeline liners according to claim 11, wherein said second wall comprises refractory materials.
14. 1 kinds of coking equipment exhaust system, comprising:
Emergent vapor pipe;
From the crossing pipeline of described emergent vapor pipe side horizontal expansion; And
Special-shaped pipeline liner, it comprises convex surface, and described convex surface operationally changes the direction of the air-flow of close described emergent vapor pipe and crossing pipeline intersection.
15. coking equipment exhaust system according to claim 14, comprise further be positioned over described crossing pipeline internal surface on the second special-shaped pipeline liner.
16. 1 kinds of modified form coking equipment exhaust system, it comprises emergent vapor pipe and the crossing pipeline from described emergent vapor pipe side horizontal expansion, and described improvement comprises:
Special-shaped pipeline liner, it comprises convex surface, and described convex surface operationally changes the direction of the air-flow of close described emergent vapor pipe and crossing pipeline intersection.
17. 1 kinds of methods improving gas flow in exhaust system, described exhaust system comprises at least one pipeline monitor device, and described method comprises:
The position with less desirable flow characteristics is determined in described pipeline monitor device; And
In described pipeline monitor device, determined position provides flow conditioner.
18. methods according to claim 17, wherein said position is determined by computer aided design system.
19. methods according to claim 17, wherein said position is by determining at described pipeline monitor device place measuring condition.
20. methods according to claim 19, wherein said condition is selected from the set be made up of temperature, pressure and speed.
21. methods according to claim 17, wherein said flow conditioner is a kind of special-shaped pipeline liner.
22. methods according to claim 17, wherein said flow conditioner is at least a turning vane.
23. methods according to claim 17, to be included on the internal surface of described pipeline monitor device further described determines position gunning refractory, thus produces convex surface.
24. 1 kinds of pipeline monitor devices, comprising:
First pipe section;
Second pipe part, it is from the side horizontal expansion of described first pipe section; And
The transition portion extended between described first pipe section and second pipe part, wherein said transition portion has the length that the side along described first pipe section extends and the degree of depth of stretching from the described epitaxial lateral overgrowth of described first pipe section, and wherein said length is greater than the diameter of described second pipe part.
25. pipeline monitor devices according to claim 24, wherein said length is the twice of the described degree of depth.
26. pipeline monitor devices according to claim 24, wherein said transition portion flare is opened.
27. pipeline monitor devices according to claim 24, wherein said first pipe section comprises abducent annular region, and described transition portion extends between described abducent annular region and described second pipe part.
28. pipeline monitor devices according to claim 24, wherein said second pipe part is with the side horizontal expansion of an angle being less than 90 degree from described first pipe section.
29. pipeline monitor devices according to claim 24, wherein said second pipe part is connected to described first pipe section T-shapedly.
30. pipeline monitor devices according to claim 24, comprise further and have at least to have a convex surface, be placed on the flow conditioner of one of them inside of described first pipe section and second pipe part.
31. pipeline monitor devices according to claim 30, comprise at least one turning vane further.
32. 1 kinds of methods improving gas flow in exhaust system, described exhaust system comprises at least one pipeline monitor device, and described method comprises:
The position of poor efficiency yield zone is determined in pipeline monitor device; And
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2012/072181 WO2014105067A1 (en) | 2012-12-28 | 2012-12-28 | Exhaust flow modifier, duct intersection incorporating the same, and methods therefor |
Publications (2)
| Publication Number | Publication Date |
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| CN104884577A true CN104884577A (en) | 2015-09-02 |
| CN104884577B CN104884577B (en) | 2019-03-05 |
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| CN201280078042.6A Active CN104884577B (en) | 2012-12-28 | 2012-12-28 | It is vented flow conditioner and pipeline monitor device and correlation technique with the adjuster |
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| Country | Link |
|---|---|
| EP (1) | EP2938700B1 (en) |
| CN (1) | CN104884577B (en) |
| CA (1) | CA2892292C (en) |
| WO (1) | WO2014105067A1 (en) |
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| CN105135397B (en) * | 2015-08-27 | 2017-08-29 | 宜兴市海纳环境工程有限公司 | A kind of flue gas heat recovery system and its application process |
| GB201605184D0 (en) | 2016-03-24 | 2016-05-11 | Air Bp Ltd | Flow distibutor |
| DE102018116738A1 (en) * | 2018-07-11 | 2020-01-16 | Z & J Technologies Gmbh | Filling device, coking drum, crude oil processing system, petroleum coke manufacturing process |
| US11592041B2 (en) | 2020-10-28 | 2023-02-28 | Artisan Industries, Inc. | Device for increasing flow capacity of a fluid channel |
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- 2012-12-28 EP EP12890654.2A patent/EP2938700B1/en active Active
- 2012-12-28 CN CN201280078042.6A patent/CN104884577B/en active Active
- 2012-12-28 WO PCT/US2012/072181 patent/WO2014105067A1/en active Application Filing
- 2012-12-28 CA CA2892292A patent/CA2892292C/en active Active
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| US3998097A (en) * | 1975-03-17 | 1976-12-21 | Mitsubishi Jukogyo Kabushiki Kaisha | Flow-measuring device |
| US4302935A (en) * | 1980-01-31 | 1981-12-01 | Cousimano Robert D | Adjustable (D)-port insert header for internal combustion engines |
| US5213138A (en) * | 1992-03-09 | 1993-05-25 | United Technologies Corporation | Mechanism to reduce turning losses in conduits |
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Also Published As
| Publication number | Publication date |
|---|---|
| CA2892292C (en) | 2018-02-27 |
| WO2014105067A1 (en) | 2014-07-03 |
| EP2938700A1 (en) | 2015-11-04 |
| EP2938700B1 (en) | 2020-09-02 |
| EP2938700A4 (en) | 2016-07-13 |
| CA2892292A1 (en) | 2014-07-03 |
| CN104884577B (en) | 2019-03-05 |
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