CN1626287A - Detonative cleaning apparatus - Google Patents
Detonative cleaning apparatus Download PDFInfo
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- CN1626287A CN1626287A CN 200410095203 CN200410095203A CN1626287A CN 1626287 A CN1626287 A CN 1626287A CN 200410095203 CN200410095203 CN 200410095203 CN 200410095203 A CN200410095203 A CN 200410095203A CN 1626287 A CN1626287 A CN 1626287A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 54
- 238000002485 combustion reaction Methods 0.000 claims description 46
- 239000000446 fuel Substances 0.000 claims description 42
- 239000007800 oxidant agent Substances 0.000 claims description 38
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0007—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by explosions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/006—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using explosives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/02—Supports for cleaning appliances, e.g. frames
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
- F28G7/005—Cleaning by vibration or pressure waves by explosions or detonations; by pressure waves generated by combustion processes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
A detonative cleaning apparatus may be configured to accommodate a desired embodiment by securing a number of conduit segments end-to-end in an appropriate configuration.
Description
Technical field
The present invention relates to industrial equipment.More especially, the present invention relates to the pinking cleaning of industrial equipment.
Background technology
The surface dirt is the subject matter in the industrial equipment.This equipment comprises stove (coal stove, oil oven, waste furnace, or the like), boiler, gasifier, reactor, heat exchanger, or the like.Usually, this equipment comprises the container that comprises the internal heat transfer surface, and internal heat transfer surface has been owing to accumulated particle for example cigarette ash, ashes, mineral and other combustion product and byproduct, more one assemble as slag and/or dirt etc., and be easy to form dirt.This particle assembles obstruction equipment operation gradually, lower efficiency and output and may cause infringement.Therefore be starved of equipment is cleaned and the cleaning of equipment need be considered many correlative factors.Usually, be difficult to directly near the surface that has dirt.In addition, in order to keep income, the industrial equipment downtime need be minimized with the cost relevant with cleaning.Multiple technologies have been proposed.For instance, at United States Patent (USP) 5,494,004 and 6,438,191 and U.S. Patent application publication 2002/0112638 in multiple technologies have been proposed. other technology is disclosed in document Huque, Z.Experimental Investigation of Slag Removal UsingPulse Detonation Wave Technique, DOE/HBCU/OMI AnnualSymposium, Miami FL., March 16-18 is in 1999.Detailed shock wave technology by
With
Below it, be described in the publication:
K.and
I., Further Experience Using Detonation Wavesfor Cleaning Boiler Heating Surfaces, International Journalof Energy Rosearch Vol.17,583-595 (1993) and
K.and
I., Detonation-Wave Technique for On-load DepoistKemoval from Surfaces Exposed to Fouling:Parts I and II, Journal of Engineering for Gas Turbines and Power, Transactions of the ASME, Vol.1,116 223-236, January 1994.This type systematic is also discussed in Yugoslavia patent publications P 1756/88 and P 1728/88.According to the exemplary application of this technology, this type systematic usually is known as " soot blower ".
Yet, in this field, still have many possibilities that require further improvement.
Summary of the invention
One aspect of the present invention relates to the equipment that is used for the surface in the cleaning container.Chamber wall separates external container and internal tank and has a cinclides.This equipment comprises fuel and oxidizer source and is used for starting fluid and the igniter of the reaction of oxidant.Long pipeline have first and second ends and be positioned to be used for will reaction back or the fuel of reaction and the air-flow guiding of oxidant discharge by cinclides and from second end.Pipeline comprises a plurality of fixing end-to-end portion's sections.
In various implementations, at least three length and 0.006-0.3m in the pipe sections along gas flow path with 1-3m
2The feature internal cross-sectional area.At least three can respectively comprise tubular body with first and second ends and respectively near first and second screw flanges of first and second ends in these sections.Nozzle assembly can pass chamber wall to small part and extend.At least one can be ell in these sections.Pipeline can consist essentially of three parts: the first of straight basically shape, in the second portion of straight shape basically of first upstream and the 3rd non-straight part between first and second part.Second can have similar basically internal cross section with third part.First can comprise downstream, upstream and transition portion.The downstream part internal cross section can be similar with third part to second basically.The comparable downstream part of upstream portion internal cross section is little.The transition portion internal cross section can transit to similar to the downstream part basically internal cross section from similar to upstream portion basically internal cross section.First and second parts can be parallel and be offseted.The position of first and second parts is to being in non-zero angle (for example 20 °-160 °).
Another aspect of the present invention relates to and is used for the method that body plan is used for the Detonative cleaning apparatus on the surface in the cleaning container.Determine suitable combustion pipe cross-sectional area.Determine suitable combustion pipe length.Determine the suitable route of combustion pipe according to environmental factor.The appropriate combination of pipe sections that is identified for forming combustion pipe is so that advance along suitable route.
In various implementations, the optional pipe sections configuration of taking pride in multiple preset of these sections.
These sections can comprise at least one straight portion section and at least one turn of bilge section.At least some can respectively have the tubular body that has first and second ends and near first and second adpting flanges of first and second ends in these sections.Can determine suitable pre-initiator configuration.Can draw body plan like this equipment figure and can assemble the equipment of body plan like this.
The details of one or more embodiment of the present invention is illustrated in accompanying drawing and following detailed description.By reading the following description and drawings and claim, can know and understand other features, objects and advantages of the present invention.
Description of drawings
Fig. 1 is the view of industrial furnace, and it is associated with some soot blowers that are positioned to the aspect that is used to clean stove.
Fig. 2 is the side view of one of soot blower of Fig. 1.
The side view that Fig. 3 cuts open for the part of the upstream extremity of the soot blower of Fig. 2.
Fig. 4 is the longitudinal sectional view of main burner portion section of the soot blower of Fig. 2.
Fig. 5 is the end-view of portion's section of Fig. 4.
Fig. 6 is the view that the pipe sections of the system of Fig. 1 supports chassis.
Fig. 7 is the side view of substituted type combustion pipe.
Fig. 8 is the view of the combustion pipe of Fig. 7, wherein upper exterior tube package and various support features is removed for details is shown.
Fig. 9 is the vertical view of substituted type combustion pipe.
Figure 10 is the vertical view of substituted type combustion pipe.
Figure 11 is the side view of the combustion pipe of Figure 10.
Figure 12 is the view of the typical sizes of the pipe sections in the pipe sections external member.
In each figure, identical reference number and label indication components identical.
The specific embodiment
Fig. 1 shows the stove 20 with three exemplary relevant soot blowers 22.In the embodiment shown, shaft forms the form of positive parallelepiped, and soot blower all is associated with the single common wall 24 of body of heater and is placed on the identical height along wall.Also can adopt other configuration (for example have one or more soot blowers on each aspect in individual sootblower, a plurality of aspect, or the like).
Each soot blower 22 comprises the long combustion pipe 26 that extends to the proximal downstream end 30 of abuts wall 24 from the upstream far-end 28 away from furnace wall 24.Yet randomly, end 30 can suitably be positioned at stove.When each soot blower of operation, the burning of fuel/oxidant mixture that is positioned at pipeline 26 is in that beginning is so that produce detonation wave near upstream extremity (for example the upstream of duct length 10%), and this detonation wave penetrates so that the surface in the internal volume of stove is cleaned from downstream as shock wave with relative combustion gas.Each soot blower can be associated with fuel/oxidant source 32.This provenance or its one or more parts can be shared by each soot blower.An exemplary source comprises liquefaction or compressed fuel gas cylinder 34 and the oxygen cylinder 36 that is arranged in corresponding container structure 38 and 40.In the exemplary embodiment, oxidant is for example oxygen of substantially pure of first oxidant.Second oxidant can be the form of 42 shop airs of carrying from the center air source.In the exemplary embodiment, air is stored in the air receiver 44.The fuel that is got by the fuel volumetric growth in the cylinder 34 generally is stored in the fuel accumulator 46.Each exemplary source 32 is connected on the associated conduit 26 by the suitable waveguide that is positioned at the below.Similarly, each soot blower comprises spark case 50, and it is used for the fire fuel oxidant mixture, and it is controlled by control and monitoring system (not shown) with source 32.Also illustrate among Fig. 1, wall 24 comprises a plurality of mouths of checking and/or measuring of being used to.Exemplary mouth comprises optical monitoring mouth 54 and the monitoring temperature mouth 56 that is associated with each soot blower 22, is used for putting respectively infrared ray and/or visible light camera and thermocouple probe, so that observe surface to be cleaned and monitoring internal temperature.Also can use other probe/monitoring/sampling apparatus, comprise pressure monitor, composition sampling apparatus, or the like.
Fig. 2 shows the more details of exemplary soot blower 22.Exemplary pinking pipeline 26 has by the pipe sections or the part 60 of the two flanges of a series of bands that are from upstream to arranged downstream and has the downstream nozzle pipe sections of downstream part 64 or the main part that part 62 forms, and downstream part 64 extends through the hole that is arranged in wall and ends at the downstream that is exposed at furnace interior 68 or export 30 places.The term nozzle is the meaning of summarizing this usefulness, thereby does not require contraction, expansion or its combination that exists on any aerodynamics.Illustrative conduit portion section material is metal (a for example stainless steel).If provide suitable supporting and cooling device, outlet 30 can be positioned at stove position more inward.Fig. 2 also shows tube bank 70 in the stove, and often there is dirt in their outer surface.In the exemplary embodiment, each pipe sections 60 is supported on the relevant chassis 72, and the wheel of chassis 72 engages with rail system 74 along equipment bay 76.Exemplary rail system comprises the closed slide that spill outer surface a pair of and the chassis wheel engages.Each exemplary section 60 has similar length L
1, and the associated bolt array of the bolt hole by being arranged in its respective flange and bolt end-to-end.Similarly, the downstream flange of the downstream portion section in each section 60 is bolted on the upstream flange of nozzle 62.In the exemplary embodiment, the reaction band 80 (for example firm synthetic material on cotton or the calorifics/structure) that is connected in series with one or more metal spiral antagonistic springs 82 is connected in this flange that does not match most to last, and combustion pipe is connected on environmental structure such as the furnace wall, so that flexibly absorb the reaction force relevant and the assurance combustion pipe is correctly placed to light subsequently with the emissions operation of soot blower.Randomly, can provide other damping (not shown).Reaction band/spring assembly can form single length or ring.In the exemplary embodiment, the downstream portion section of this combination has total length L
2Substituting elastic recoil absorption plant can comprise nonmetal or non-helical spring or rubber or other under tension force, compression and/or shear action advantageously to the elastomer element of small part strain, air pressure recoil absorber, or the like.
Pre-initiator pipe sections 84 is extended downstream from upstream extremity 28, and it also can be with two flanges and have length L
3The feature internal cross-sectional area (perpendicular to the axis/center line 500 of pipeline) of pre-initiator pipe sections 84 is less than the feature internal cross-sectional area of the downstream part (60,62) of combustion pipe (for example average, intermediate value, mode, or the like).In the exemplary embodiment that relates to circular cross section pipeline portion section, pre-initiator cross-sectional area is characterised in that diameter between between the 8cm to 12cm, and the downstream part is characterised in that diameter is between between the 20cm to 40cm.Correspondingly, the example transverse cross-sectional ratio of downstream part and pre-initiator portion section is between 1: 1 to 10: 1, and is narrower, between 2: 1 to 10: 1.Total length L between the end 28 and 30 can be 1-15m, and is narrower, is 5-15m.In the exemplary embodiment, transition conduit portion section 86 extension between pre-initiator portion section 84 and upstream portion section 60.Portion's section 86 has size and is suitable for the upstream and downstream flange that matches with the respective flange of portion section 84 and 60, and has the inner surface that seamlessly transits is provided between the internal cross section of portion's section 84 and 60.Exemplary section 86 has length L
4Exemplary half-angle≤12 of dispersing of the inner surface of portion's section 86 °, narrower, be 5-10 °.
The fuel/oxidant charging can be introduced the pinking pipe interior according to variety of way.One or more different fuel/oxidant mixtures can be arranged.This mixture can carry out premixed in pinking pipeline outside, perhaps can introduce the pipeline place or introduce the laggard row mixing of pipeline.Fig. 3 shows portion's section 84 and 86 and is configured to and is used for introducing respectively two kinds of different fuel/oxidant combinations: pre-initiator combination; With main combination.In the exemplary embodiment, in the upstream portion of portion's section 84, a pair of pre-initiator fuel injection pipe road 90 is connected on the mouth 92 of the Duan Bizhong of portion that defines fuel injection orifice.Similarly, a pair of pre-initiator oxidant conduit 94 is connected on the oxidant inlet 96.In the exemplary embodiment, these mouthfuls are arranged in half section of upstream on the length of portion's section 84.In the exemplary embodiment, each all (is depicted as exemplary 90 ° in that identical axial positions is angled in the fuel injection orifice 92, but also can be for comprising other angle of 180 °) with relevant oxidant mouth 96 pairings so that mix for fuel and oxidant provide relative jet.Will further discuss hereinafter, purge gas pipeline 98 is connected on the purge gas mouth 100 similarly at upstream end more.The end plate 102 that is bolted on the upstream flange of portion's section 84 is sealing the upstream extremity of combustion pipe and is passing the igniter/trigger 106 (for example spark plug) with the operation end 108 that is positioned at portion's section 84 inside.
In the exemplary embodiment, main fuel and oxidant are introduced in portion's section 86.In the embodiment shown, main fuel is transported by a plurality of main fuel pipelines 112 and primary oxidant is transported by a plurality of primary oxidant pipelines 110, wherein each primary oxidant pipeline 110 has with one heart the port around associated fuel pipeline 112, so that at relevant inlet 114 places mixing main fuel and oxidant.In the exemplary embodiment, fuel is hydrocarbon.In special exemplary embodiment, two kinds of fuel are identical, and but they are drawn from single fuels sources mix with different oxidant: mix so that obtain pre-initiator mixture with pure basically oxygen; Mix so that obtain main mixture with air.Available in this case exemplary fuel has propane, MAPP gas or its mixture.Also other fuel be can use, ethene and liquid fuel (for example diesel oil, kerosene and jet aviation fuel) comprised.Oxidant can comprise mixture, and the air/oxygen mixture of proper proportion for example is so that obtain required master and/or pre-initiator charging chemical property.In addition, have the fuel of molecular combinations and the monopropellant fuel of oxidant constituents and also can be used as selection.
When operation, begin the place in life cycle, except having air (or other purge gas), when beginning, be sky in the combustion pipe.Pre-initiator fuel and oxidant are introduced by critical point mutually subsequently, charge into portion's section 84 and extend partially in portion's section 86 (for example near midpoint), and advantageously just surpassed main fuel/oxidant mouth.Cut off pre-initiator fuel and oxidant stream then.The pre-initiator fuel that charges into and the exemplary volume of oxidant account for the 1-40% of combustion pipe volume, and be narrower, accounts for 1-20%.Introduce main fuel and oxidant then so that charge into the combustion pipe residual volume of definite part (for example 20-100%) basically.Cut off main fuel and oxidant stream then.Introduce pre-initiator fuel and oxidant through main fuel/oxidant mouth before this, just eliminated between pre-initiator and main charging, forming air or other does not fire the danger of piece greatly.This can prevent that combustion front from moving between two chargings.
After introducing charging, with regard to the pilot spark case so that the spark discharge of trigger is provided, thereby light pre-initiator charging.Pre-initiator charging is chosen to have the chemical property of very fast burning, and therefore in portion's section 84, initial detonation changes pinking apace into, and produces detonation wave.In case produced this detonation wave, just can pass through main charging effectively, and main charging may have enough slow chemical property in addition so that can pinking in pipeline automatically.Ripple longitudinally passes through downstream and occurs from the form of downstream 30 as the shock wave in the stove, thereby bombards on surface to be cleaned and generation calorifics and impact mechanically, so that dirt is fluffed.The pressure combustion product that to and then discharge from the pinking pipeline after the ripple, the product that row comes occurs as the form of jet and further finishes cleaning course (for example removing the material that has come loose) from downstream 30.After discharging combustion product, perhaps carry out simultaneously with the discharge combustion product, by (for example purging mouthful 100 introducing purge gas, air and/or nitrogen from the same source that is used to provide primary oxidant) (carry out immediately, perhaps carrying out (it can manually be determined or be automatically definite by control and monitoring system) according to regular or irregular interval subsequently so that repeat following one-period so that displace and make the pinking pipeline to be full of purge gas final combustion product.Randomly, can keep the baseline stream of purge gas between the cycle, so that prevent from upstream to permeate and be convenient to help the pinking pipeline is cooled off from the gas in the stove and particle in feed/drain.
In various implementations, internal surface area significantly can be increased to and exceed by for outside cylindrical and Frusto-conical the surface area that the section inner surface provides nominally inner surface increases device.Intensifier can help effectively to realize that detonation to detonation transition or help keeps detonation wave.The inner surface that Fig. 4 shows on the inner surface that is applied to one of principal part section 60 increases device.Nominally exemplary intensifier is the Chin spiral, but also can use other intensifier, for example Shchelkin spiral and Smirnov chamber.Spiral is formed by helical form member 120.Exemplary member 120 forms the form of the hardware (for example stainless steel metal line) with circular cross section, and its diameter of section is approximately 8-20mm.Alternatively, also can use other cross section.Exemplary member 120 keeps being separated by by a plurality of staves 122 and portion's section inner surface.Exemplary stave be cross section and materials similar in member 120 and welding thereon with the inner surface of dependent part section 60 on bar.This intensifier also can be used to provide in advance detonate, to replace relating to the aforementioned techniques of different feeds and different burner cross sections or replenishing as aforementioned techniques.
This equipment has widely to be used.For instance, just in typical coal furnace, equipment can be applied to: suspension or two-stage superheater, convection channel (primary superheater and economizer bundle); Air preheater; Selecting catalyst remover (SCR) washer; Dust storage chamber or electrostatic precipitator; Economizer hopper; No matter be to be positioned at heating surface or other local lime-ash or other heat/gather, or the like.Similarly possibility is present in other application, comprises that oil burner, black liquor recovery boilers, biological fuel boiler, waste recovery utilize stove (refuse furnace), or the like.
Fig. 6 shows the more details of exemplary chassis 72 and rail system 74.The exemplary track system comprises the top right angle channel element 140 (for example being formed from steel) up of pair of parallel, and it is fixed by for example being welded on the installing plate 142.Installing plate for example is fixed on the base plate 76 by the bolt (not shown) that is arranged in bolt hole 144 again.Exemplary chassis comprises structural framing 150 and the front and back cross member 154 with a pair of left and right sides longitudinal member 152.At the place, the left and right sides of each cross member, wheel 156 is installed on the sagging carriage 158.Wheel has concave surface (for example the right angle V-shaped groove 160) week, is putting the top of right angle channel member 140.Exemplary chassis has and is used to support the device of associated conduit portion section and is used for device with portion's section fix in position.Exemplary supporting arrangement comprises a pair of front and back pipe clamp 170, they separately by nut 172 location be supported on relevant left and right sides thread spindle 174 on, and thread spindle 174 is fixed on the framework at its lower end.Folder 170 has the concave surface 176 with the outer body surface complementation of associated conduit portion section, so that supporting portion's section from the below.Fixture comprises similar jacking frame 180, and it also is installed on the axle 174 by nut 182 and holds down in place and portion's section formation compressive engagement.
The use of chassis can have many selections.Each section can be pre-installed and be assigned on its relevant chassis and roll in placely along rail system, and at this moment each section can be by its end flanges and together fixed to one another.Unloading process can be the reverse procedure of this process.Chassis also the tolerable combustion pipe as a mass motion (for example, words in the stove are not inserted in the downstream part of pipeline if desired) always.In addition, as mentioned above, chassis can be adapted to the motion doing as a whole thermal expansion that carry out and vertical and/or be associated with the recoil effect in the discharging cycle, the alignment that keeps pipe sections simultaneously.
Fig. 7 shows substituted type system 200, and wherein combustion pipe 202 hangs on the carriage 204 (for example, as the part of free-standing supporting structure or be fixed on the top or roof 206 of equipment).This system can be specially adapted to the position of pipeline far above the situation on the equipment bay.Example system 200 is being handled pipeline 202 around the outer peripheral obstacle of stove.Exemplary barrier comprises that pipeline passes upper and lower tube bank 210 and 212 wherein.In the exemplary embodiment, convoluted conduit walk in case allow with its outlet 214 be positioned with one of two tube banks furnace walls of aliging on the position on.In this case, the obstruction that will be restrained of straight pipeline.Therefore, pipeline has one or more bent section 216 so that adapt with tube bank.
Be from upstream to the downstream, exemplary supporting system comprises by screw- button device 224 and 226 and is connected in upstream and middle springs suspension bracket 220 and 222 on the associated conduit portion section.Exemplary spring hanger can be from LISEGA, Inc., and Newport, Tennessee company obtains.In the exemplary embodiment, owing on this position, have higher static load, so spring hanger 222 can have significantly higher ability.In view of the intensive parameter of the mass parameter of pipeline (for example center of gravity, Mass Distribution, or the like), pipeline (for example, various modulus) and the situation of any additional support members, the concrete combined situation of suspension bracket size can be subjected to along the influence of the relative position of the suspension bracket of pipeline.Exemplary spring hanger is as the suspension bracket of the load of substantial constant, and supporting tension force substantial constant in working range.A function of the vertical compliance that is provided by suspension is to adapt to the heat relevant variation of the upright position of outlet 214 with respect to top surface 206 or other combustion pipe supporting structure.For example, the thermal expansion of furnace wall may cause that the outlet upright position changes between H/C (for example move and the stop) working of a furnace.In the embodiment of Fig. 2, this expansion issues is by vertical duct coupling in non-rigid ground and wall, makes pipeline have enough vertical clearances in the cinclides of oversize and solved.Yet, for the rigidity installation situation, the height of pipe outlet if the heating process of stove has raise, under the situation that does not have the constant force suspension, more most pipeline quality will be carried by the furnace wall, and more fraction is carried by the upstream supporting member.This will cause shearing/bending force/square and related variation.Yet, spring suspension is easy to shrink, therefore thereby raise portion's section that it connects, the quality by the furnace wall supporting can significantly not increase, thereby alleviates in major part at least in part and advantageously/eliminated otherwise will increase the stress that causes owing to going out open height.Therefore, suspension can make pipeline keep the position of substantial constant to (for example, its upstream major part being remained in substantially horizontal position upwards).
In the exemplary embodiment, the supporting structure 240 that is positioned at the combustion pipe outside has further been strengthened the relevant portion's section that assembles.This booster action advantageously handled with bent section in the relevant structural stress of shock reflection that takes place.In the embodiment shown, structure is linked to the downstream part of pipeline on the furnace wall more securely.In the exemplary embodiment, screw-button 226 by its down screw rod be connected on the anchor clamps 242, and anchor clamps 242 are fixed on the upstream extremity of supporting structure and have buffer 244 so that adapt to and damping may be by the side-to-side movement of the pipeline of combustion process generation.In the exemplary embodiment, being rigidly connected of supporting member and furnace wall absorbed recoil strength, thereby prevented recoil basically.With regard to the still debatable situation of vertical thermal expansion of pipeline, this expansion can obtain handling by allowing suspension to pivot link position 246 and the below and the tie point 248 associated conduit joining jig on the carriage 204 of being connected to of top (for example, with respect to).Alternate embodiment can be removed the rigid attachment of pipeline and wall and allow and adopt connecting of elasticity or damping.
Supporting structure 240 directly matches with the pipe sections of the two flanges of some bands, and by bleed valve assembly 250 and the exemplary horizontal structure stove I-beam 252 that pre-exists that is positioned at valve module 250 above and belows and 254 and these sections are connected on the wall 215.In the exemplary embodiment, extending beam 256 and 258 is welded on the outer flange of respective beam 252 and 254. Exemplary beam 256 and 258 is a tee girder, but also can use I-beam.In the exemplary embodiment, a pair of left and right beam 256 and left and right beam 258 are arranged, wherein the corresponding athwart beam of the I-beam 260 of left and right vertical extension is right, and I-beam 260 interior side flange separately is fixed on the head flange of relevant beam 256 and 258.
In the downstream, combustion pipe comprises the nozzle segment 268 of the turnover valve 272 that extends through inlet and outlet piping 270 and assembly 250.Inlet and outlet piping 270, turnover valve 272 and wall installing plate (not shown) provide the turnover assembly.Turnover valve 272 has main body, and the downstream face of main body is installed on the upstream flange of pipeline 270.Nozzle 268 is fixed on the main body of second valve or pipeline valve 274 and from it and extends (Fig. 8) downstream.The downstream face of this main body is installed on the upstream face of the main body that passes in and out valve 272.Valve 272 and 274 has corresponding slide block or gating element 276 and 278, they can open and the closed position between translation.Continue upstream to see that the downstream flange of the 45 ° of crooked ells 280 in downstream is installed on that upstream flange then is installed on the downstream flange of straight pipeline portion section 282 on the upstream face of main body of pipeline valve 274.The upstream flange of portion's section 282 is installed on the downstream flange of the 2 45 ° of ell 284.The Your Majesty that the upstream flange of ell 284 is fixed in combustion pipe swims on the downstream flange of downstream portion section 286 of straight part.Exemplary installed part clips support interface plate 288 between these two flanges.The upstream flange of portion's section 286 is installed on the downstream flange of second from the bottom section 290 of straight part, similar continuously in its front more each section is installed.
Exemplary supporting structure 240 comprises the downstream support 300 that diagonal angle, a pair of left and right sides extends, and the downstream of support 300 is connected in by installation bracket 302 on the upstream face of main body of valve 274 and downstream is connected on the downstream face of plate 288 by installation bracket 304.Left and right sides longitudinal carrier 306 is located end-to-end with support 300, and its downstream is connected on the upstream face of plate 288 by carriage 308.Exemplary support has the U-shaped cross section, has inboard vertical connecting plate and transverse flange.Near the inboard of the upstream and downstream flange of portion's section 286 and 290, support 306 the splitting anchor clamps 310 of adjacent channel portion section main body by compressive engagement and is together fixed to one another.In the exemplary embodiment, additional structure rib 312 is welded on each support 306 along its downstream half, aligns with its connecting plate that is positioned at its upper flange top and extends upward from it.
Support helps portion's section 280,282,284,286 and 289 of reinforcing and strengthening assembling up.Portion's section that these are supported can vertically be supported and limited horizontal movement.In an illustrated embodiment, suspension bracket 222 (Fig. 7) just is positioned at the upstream end of the upstream extremity of support 306.Additional suspension bracket is provided by the downstream screw-button 320 of the downstream of close support 300.In the exemplary embodiment, the last threaded rod of screw-button be connected on the pivot 322 on the downside of the flange that is welded on beam 252 and down threaded rod be connected on the main body that is positioned at portion's section 280 near the pivot 324 on the folder of its downstream end.On each side of the left and right sides of pipeline, the first and second flat spin buttons 328 and 330 are limiting portion's section of being supported respectively basically in case downstream and motion upstream.In the exemplary embodiment, first screw-button 328 is across between the vertical beam 260 of the downstream end of associated supports 300 and its upstream, and second screw-button 330 is across between the beam 260 in plate 288 and its downstream.In the exemplary embodiment, assembly 250 is located rigidly with respect to wall 215.In this case, need compliance hardly in downstream end, thereby exemplary screw-button 320 is not with spring hanger near pipeline.Similarly, screw- button 328 and 330 does not have compliance yet.Yet in alternate embodiment, the discharging/port of export of pipeline can not be to locate (for example can have unsteady ability to a certain degree with respect to the hole in the wall) rigidly.In this case, can provide to have the more vertical and horizontal installed part of highly conforming properties, the latter randomly comprises the elastic recoil absorption plant.
In exemplary erection sequence, second valve is installed on the turnover valve, and described in the common pending application files EH-10965 (03-435) that submits on the same day with the application, its disclosure all is incorporated herein by reference at this as sets forth in detail.Then, downstream ell 280 can be fixed on the upstream face of main body of pipeline valve 274.Screw-button 320 can be installed.Straight portion section 282 can be installed on the downstream ell 280 and with upstream ell 284 and be installed on the straight portion section 282.Interface board 288 can be installed on the upstream flange of ell 284.Can reach relevant downstream support 300 to installation bracket 302 and 304 then and install, screw- button 328 and 330 are installed thereafter.Two sections 286 in the downstream of main straight pipeline portion section can sequentially install with 290 and relevant anchor clamps 310 are mounted thereon.Can be installed on support 306 on the anchor clamps and be installed on the carriage 308, and carriage 308 be installed on the interface board 288.Alternatively, these sections, anchor clamps, support and carriage can be assembled into an integral body then as an integral installation on liner plate 288 and ell 284.The hanging holder set 222 in downstream can be installed with anchor clamps 242 and buffer 244.The hanging holder set 220 of remaining upstream large-diameter pipeline portion Duan Keyu upstream is installed together.Then pre-initiator and transition conduit can be installed, gas line, control, instrument or the like are installed subsequently.
Fig. 9 shows combustion pipe 350, and it extends from upstream extremity 351 downstream end/outlet 352.Exemplary pipeline 350 body plans are used at 358 places, hole in the barrier immediate cause and can not use the situation of the combustion pipe that is entirely straight shape of Len req too of the distance between building wall 354 and the furnace wall 356 for example.Exemplary combustion pipe 350 has 90 ° of single elbow bends that pipeline ell portion section 360 forms by the two flanges of band.The overall configuration of combustion pipe 350 can be similar to previous combustion pipeline (for example combustion pipe of Fig. 1).Pipeline is by assembling up each pipe sections is end to end.Be from upstream to the downstream, each exemplary section comprises the pre-initiator of minor diameter portion section 362, have from the minor diameter of pre-initiator portion section to the transition part section 363 of the diameter of the bigger downstream of all the other each sections diameter transition, four large-diameter portion sections 364, ell 360 with the nozzle 366 of single flange.
More complicated situation can make up by different portion's sections and adapt to.Figure 10 and 11 shows exemplary pipeline 380, and it had both had the variation on the height so that be adapted to barrier such as the pipe group of Fig. 7 and 8, has elbow again so that be adapted to wall and other barrier 382.Pipeline 380 extends to the downstream/outlet 384 in the hole that is positioned at furnace wall 386 from upstream extremity 383.Be from upstream to the downstream, pipeline comprises the pre-initiator of minor diameter portion section 388, transition part section 390,400,90 ° of ells 402 of the straight portion of first diameter portion section section, the 404, the 1 ° of ell 406 of the straight portion of second largest diameter section, the 408, the 2 45 ° of ell 410 of the straight portion of the third-largest diameter section and with the nozzle 412 of single flange.Each section can form the respective segments of aforementioned pipeline similarly.
Figure 12 shows the typical conduit portion section from external member.Exemplary external member comprises the pre-initiator portion section 430 of the two flanges of minor diameter band.The upstream flange of this section can have the igniter that is adapted to one or more fuel and/or oxidant constituents and/or the end plate 432 of inlet.External member also can comprise the transition part section 434 of the two flanges of band.External member can also comprise the large-diameter pipeline portion section (showing four different length portion sections 436,438,440 and 442) of the two flanges of band with different length.In portion's section of these length any one or all each section can have a plurality of examples.Figure 12 also shows 45 ° and 90 ° ell portion sections 444 and 446 of major diameter of the two flanges of exemplary band.Equally, may there be a plurality of examples in each ell portion section.In addition, the ell portion section with different angles span can be arranged.Outlet/nozzle pipe (showing short and long length 448 and 450) that different length can be arranged.The outlet conduit of different length can be adapted to the thick and total length from second from the bottom section (portion's sections of the two flanges of the last band) to outlet of different walls or whole two the two.A kind of factor in the back also combination of the outlet conduit by using different second from the bottom sections or the Duan Yudan of portion kind length alternately solves.
In various implementations, may be suitably or what need is that cross-section of pipeline also changes.For example, between the length in pre-initiator and downstream, can have and one or morely have portion's section of middle cross section together with suitable transition part section.In a special example, locate not have enough spaces to come to determine route between the barrier in the centre position for one or more large-diameter portion sections along the length of pipeline.Alternatively, may relate to the variation of shape of cross section under the situation that keeps cross-sectional area on the whole by these barriers.For example, but the circular cross section transition is to have the rectangular cross section of similar area so that by between the barrier of close together.In this case, the transition part section can be carried out transition on shape of cross section.With multiple changing type more, can there be one or more sections to be positioned at the modification (comprise can according to the portion section of the above-mentioned similar mode of mode by the outer barrie thing) of container fully by the inner barrier thing.
Exemplary external member can only be included in the specific combustion pipe or the required portion's section of combustion pipe group at equipment place.These pipelines can design in advance, and can retrain according to barrier and other and select suitable combination so that realize required duct length.Other constraint can comprise pipeline enter position in the stove, in the desired location of the upstream extremity that enters angle and pipeline of this position.For example, may need the upstream extremity of plurality of conduits is more closely located so that control cost.Yet alternatively, the engineering of some can be carried out at the scene.In this case, external member can comprise the additional assemblies of different size so that allow on-the-spot selection configuration option and allow the field optimizing that carries out according to test.
In addition, external member can comprise other said modules, for example be used for bolt, support, suspension bracket, chassis and related hardware, reaction band/spring, fuel/oxidant/purge gas equipment and waveguide, control and monitoring hardware, liner that each section is fixed together, or the like.In addition, external member can comprise heat insulation flange, gas curtain flange and cooling jet parts, as disclosed among the common pending application files EH-10962 (03-432), the EH-10963 (03-433) that submit on the same day with the application and the EH-10964 (03-434), its disclosure all is incorporated herein by reference at this as sets forth in detail.In addition, external member can be included in disclosed access device among the common pending application files EH-10965 (03-435).
More than one or more embodiment of the present invention are described.Yet, should be appreciated that and under the situation that does not deviate from the spirit and scope of the present invention, can make various changes.For example, can make the present invention be applicable in the various industrial equipments and in the various soot blower technology.The aspect of existing device and technology may influence the aspect of any specific implementation mode.Correspondingly, other embodiment is also within the scope of following claim.
Claims (15)
1. equipment that is used to clean the surface in the container with the chamber wall that external container and internal tank is separated and have cinclides, this equipment comprises:
Fuel and oxidizer source;
The igniter that is used for the reaction of starting fluid and oxidant; And
Long pipeline has first and second ends and is positioned to the air-flow guiding that is used for reacting back or fuel that reacts and oxidant and discharge by cinclides and from second end, and comprises a plurality of fixing end-to-end portion's sections.
2. equipment according to claim 1, wherein
At least three length and 0.006-0.3m in the pipe sections along gas flow path with 1-3m
2The feature internal cross-sectional area.
3. equipment according to claim 1, wherein
At least three respectively comprise in these sections:
Tubular body with first and second ends; And
Respectively near first and second adpting flanges of first and second ends.
4. equipment according to claim 1, wherein
Nozzle assembly to small part is passed chamber wall and is extended.
5. equipment according to claim 1, wherein
At least one is an ell in these sections.
6. equipment according to claim 1, wherein pipeline consists essentially of three parts:
The first of straight basically shape;
Be positioned at the second portion of straight shape basically of first upstream; And
The 3rd non-straight part between first and second part.
7. equipment according to claim 6, wherein
Second has similar basically internal cross section with third part; And
First comprises:
Internal cross section basically to second downstream part similar with the internal cross section of third part;
The upstream portion that internal cross section is littler than the internal cross section of downstream part; And
Internal cross section transits to similar to the internal cross section of downstream part basically transition portion from similar to the internal cross section of upstream portion basically.
8. equipment according to claim 6, wherein first and second partial parallels and offseting.
9. equipment according to claim 6, wherein the position of first and second parts is to the angle that is in 20 °-160 °.
10. one kind is used for the method that body plan is used for the Detonative cleaning apparatus on the surface in the cleaning container, and container has wall, and this method comprises:
For the combustion pipe of equipment is determined suitable cross-sectional area;
For combustion pipe is determined suitable length;
Determine the suitable route of combustion pipe according to environmental factor; And
The appropriate combination of combustion pipe portion section that is identified for forming combustion pipe is so that advance along suitable route.
11. method according to claim 10, wherein
Combustion pipe portion section is selected from many default pipe sections configurations.
12. method according to claim 10, wherein
Combustion pipe portion section comprises at least one straight portion section and at least one turn of bilge section.
13. method according to claim 10, wherein
At least some combustion pipe portion sections respectively comprise:
Tubular body with first and second ends; And
Respectively near first and second adpting flanges of first and second ends.
14. method according to claim 10 also comprises:
Determine suitable pre-initiator configuration.
15. method according to claim 10, combination has:
Produce the figure of the Detonative cleaning apparatus of body plan like this; And
Assemble the Detonative cleaning apparatus of body plan like this.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/718730 | 2003-11-20 | ||
| US10/718,730 US7011047B2 (en) | 2003-11-20 | 2003-11-20 | Detonative cleaning apparatus |
| US10/733889 | 2003-12-11 | ||
| US10/733,889 US20050125933A1 (en) | 2003-12-11 | 2003-12-11 | Detonative cleaning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1626287A true CN1626287A (en) | 2005-06-15 |
Family
ID=34437430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410095203 Pending CN1626287A (en) | 2003-11-20 | 2004-11-22 | Detonative cleaning apparatus |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1533049A1 (en) |
| JP (1) | JP2005152894A (en) |
| CN (1) | CN1626287A (en) |
| AU (1) | AU2004229046B2 (en) |
| NZ (1) | NZ536698A (en) |
| RU (1) | RU2004133924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8651066B2 (en) | 2010-09-28 | 2014-02-18 | Bha Altair, Llc | Pulse detonation cleaning system |
| CN108889746A (en) * | 2018-07-26 | 2018-11-27 | 李荣涛 | A kind of the air burst cleaning equipment and application method of column of waste bucket |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1962046A1 (en) | 2007-02-22 | 2008-08-27 | General Electric Company | Pulse detonation combustor cleaning device and method of operation |
| WO2023033110A1 (en) * | 2021-09-02 | 2023-03-09 | 株式会社レゾナック | Method for operating fullerene manufacturing device, fullerene manufacturing device, and method for manufacturing fullerene |
| CN114570708B (en) * | 2022-04-02 | 2022-09-02 | 广东雷诺精密科技有限公司 | Watch cleaning machine and watch cleaning method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5430691A (en) * | 1994-05-27 | 1995-07-04 | Fridman; Igor | Shock wave generator |
| US5494004A (en) * | 1994-09-23 | 1996-02-27 | Lockheed Corporation | On line pulsed detonation/deflagration soot blower |
| JP2003320331A (en) * | 2002-04-26 | 2003-11-11 | Jfe Engineering Kk | Dust removing method and dust extractor |
-
2004
- 2004-11-12 AU AU2004229046A patent/AU2004229046B2/en not_active Ceased
- 2004-11-17 JP JP2004332553A patent/JP2005152894A/en active Pending
- 2004-11-19 NZ NZ53669804A patent/NZ536698A/en unknown
- 2004-11-19 EP EP04257176A patent/EP1533049A1/en not_active Withdrawn
- 2004-11-22 RU RU2004133924/12A patent/RU2004133924A/en not_active Application Discontinuation
- 2004-11-22 CN CN 200410095203 patent/CN1626287A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8651066B2 (en) | 2010-09-28 | 2014-02-18 | Bha Altair, Llc | Pulse detonation cleaning system |
| CN108889746A (en) * | 2018-07-26 | 2018-11-27 | 李荣涛 | A kind of the air burst cleaning equipment and application method of column of waste bucket |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005152894A (en) | 2005-06-16 |
| EP1533049A1 (en) | 2005-05-25 |
| RU2004133924A (en) | 2007-04-27 |
| AU2004229046B2 (en) | 2006-06-22 |
| AU2004229046A1 (en) | 2005-06-09 |
| NZ536698A (en) | 2006-09-29 |
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