CN106076204A - A kind of pressure vessel and air inlet thereof - Google Patents

A kind of pressure vessel and air inlet thereof Download PDF

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Publication number
CN106076204A
CN106076204A CN201610650672.6A CN201610650672A CN106076204A CN 106076204 A CN106076204 A CN 106076204A CN 201610650672 A CN201610650672 A CN 201610650672A CN 106076204 A CN106076204 A CN 106076204A
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CN
China
Prior art keywords
air inlet
pressure vessel
housing
cylinder
flow
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Pending
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CN201610650672.6A
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Chinese (zh)
Inventor
陈孙艺
雷小娣
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CHALLENGE PETROCHEMICAL MACHINERY Corp
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CHALLENGE PETROCHEMICAL MACHINERY Corp
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Priority to CN201610650672.6A priority Critical patent/CN106076204A/en
Publication of CN106076204A publication Critical patent/CN106076204A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/02Feed or outlet devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04Pressure vessels, e.g. autoclaves

Abstract

A kind of pressure vessel air inlet of the present invention, it is positioned on cylinder or the end socket of the lower section of the housing lower part fabric swatch of vertical pressure vessel, being disposed with the opening of circumference on distribution grid, described pressure vessel air inlet includes the oblique perforate of tangential penetration that at least two is arranged along housing axial symmetry.At pressure vessel shape is set and position is all at least two air inlet that axial symmetry is arranged; it is easily installed air inlet tube; improve the fluidised form after process gas enters housing; reduced velocity flow; pressure equalizes, it is to avoid impact shock, is flowed out by the radial opening on airflow-distribution board the most again; make the material got off from affiliated reactor top form the fluid bed of equilibrium, and realize the size of capacity.The invention also discloses a kind of pressure vessel, it can take into account air-flow harmony, grain products mobility and internal structure fatigue durability simultaneously, having the advantages such as anti-deposit ability is strong, production is stable, space layout is more safe and scientific, can extend the service life of pressure vessel.

Description

A kind of pressure vessel and air inlet thereof
Technical field
The present invention relates to for each with chemical industry, Coal Chemical Industry, chemical fertilizer industry and other various chemical equipments of petroleum refining Kind of large-scale high-grade reactor technology field, such as, fluidized-bed reactor, carried out by catalyst the hydrogenation reactor that reacts or Desulfurization reactors etc., particularly relate to a kind of pressure vessel and air inlet thereof.
Background technology
Chemical reactor, as it is shown in figure 1, include cylinder 1, is arranged at the end socket i.e. upper cover 2 at cylinder two ends and spherical Low head 3, is arranged at material import and export i.e. upper shed 4 and the under shed 5 of end socket, bearing 6, support ring 7, and process gas inlets is tied Structure 8, the airflow-distribution board 9 being arranged in cylinder, and for supporting the inner supporting structure of airflow-distribution board, or urge in cylinder The supporting structure of agent, have also includes pressure vessel inside surfacing applied corrosion resistant lining.
Developing towards the direction of large-scale production recently as petrochemical plant, the volume of reactor becomes increasingly Greatly, traditional reactor can not meet process requirements, one of fluidized-bed reactor then development trend representing state-of-the-art technology, its Structure and the process gas distribution that it is critical only that inside reactor of technology.In prior art, gas-solid fluidized bed distribution grid or many or Also exist that anti-deposit is indifferent, stability is the highest less, easily by defects such as active substance blockings, there is also original distribution and harden The problems such as structure function adaptability after reactor shell structure large-scale.To this, people make great efforts to improve the gas of inside reactor Solid fluid bed distributing plate structure, main body develops the structures such as round tabular shape, truncated cone-shaped and funnelform turbination, also carries Go out the new constructions such as concavo-convex combination shape, the various design of shape and reality have also been entered in the air flow method hole on distribution grid by details Trample, although resultant effect makes moderate progress, but do not tackle the problem at its root.
In fact, the instability problem of above-mentioned fluidizing gas bed can be further discriminated between as primary unstability with secondary The two big classes such as raw unstability, the technology of forefathers too concentrates on the secondary unstability of the latter, i.e. distribution grid, and primary to the former The i.e. process gas of unstability enters shell fluidised form factor and improves not, meanwhile, to primary unstability and secondary unstability two The relation of person and the technical research of structure matching thereof are especially close to blank.Fig. 2 is the D-D direction view in Fig. 1, analyzes it non-radial The function of process gas inlets structure 8, due to only one of which process gas import, enters the process gas of spherical low head 3 the most not It is uniformly distributed, if this unique process gas inlets is changed into central inlet bottom end socket, although can be obviously improved The uniformity of process gas distribution, but cause again material import and export 5 difficulty is set.With this container diameter and production-scale increasing Greatly, course of reaction logistics capacity is big, and the aggravation of contradictions of this single import shows that gas velocity causes vibration soon and easily, also increases Add the new problem of operating flexibility difference.This all can be attributed to the primary unstability of fluidized-bed.
Therefore, for the problems referred to above defect, a kind of pressure vessel of research and development and air inlet thereof, make process gas at distribution grid and circle In barrel reactor, equiblibrium mass distribution flows up, and makes the grain products of generation be collected by distribution grid simultaneously and discharges from bottom, also The vibrating fatigue that logistics capacity is big, gas velocity fast and causes can be resisted, pressure drop stability and the good technique of fluidization quality will be met Gas air intake structure, is applied to petrochemical industry reactor, and steady production and economic benefit are had important engineering significance.
Summary of the invention
An object of the present invention is to avoid weak point of the prior art to provide one can be generally applicable to respectively The pressure vessel air inlet adapter arrangement of kind of airflow-distribution board, it is possible to simultaneously have that air-flow harmony is good, grain products stream concurrently Dynamic property is preferably and internal structure fatigue durability is good.
The two of the purpose of the present invention are to avoid weak point of the prior art to provide a kind of pressure vessel, it is possible to make Process gas enters the distribution of reactor bottom post-equalization and flows up, and makes the material particles product of generation by this air flow method simultaneously Plate collects discharges from bottom, moreover it is possible to avoid the vibrating fatigue that logistics capacity is big, gas velocity fast and causes.
An object of the present invention is achieved through the following technical solutions:
Provide a kind of pressure vessel air inlet, be positioned at the lower section of the housing lower part fabric swatch of vertical pressure vessel cylinder or On end socket, distribution grid being disposed with the opening of circumference, described pressure vessel air inlet includes that at least two is along housing axial symmetry The oblique perforate of tangential penetration arranged.
Wherein, described air inlet includes penetrating to be plugged in and described tiltedly opening of level or inner acclivitous non-radial layout The air inlet tube in hole.
Wherein, the cross section of described air inlet tube is circular or oblate or rectangle.
Wherein, any two cross section of described air inlet tube is comparable size, or the adapter inwardly gradually expanded.
Wherein, described air inlet tube reaches the tubular construction in housing in being, the inner segment of air inlet tube is by corresponding internal Supporting structure is connected with enclosure interior.
Wherein, the interior end opening of described air inlet tube is diagonal cut joint.
The two of the purpose of the present invention are achieved through the following technical solutions: a kind of pressure vessel, including cylinder or cone Cylinder, be arranged at the end socket at cylinder two ends, the material inlet being respectively arranged at the end socket at two ends and material outlet, be arranged at cylinder Internal airflow-distribution board and for supporting the inner supporting structure of airflow-distribution board, wherein, described pressure vessel be provided with above-mentioned respectively Pressure vessel air inlet described in individual technical scheme.
Wherein, described container outlet is the radial aperture of the level that at least two is arranged along housing axial symmetry.
Beneficial effects of the present invention: a kind of pressure vessel and the pressure vessel air inlet thereof of the present invention have systematic Matter is innovated.
First, as the pressure vessel of reactor body, at its housing shape is set and position is all that axial symmetry is arranged At least two air inlet, it is simple to axial symmetry distribution ground install air inlet tube on vertical pressure vessel housing circumference, improve from Process gas that reactor bottom is come in enters the fluidised form after housing, multiple adapters air inlet simultaneously thus reduced velocity flow, and pressure equalizes, Avoid impact shock, flowed out by the radial opening on airflow-distribution board the most again, make the material shape got off from reactor top Become the fluid bed of equilibrium, and realize the technical cue of the size of capacity.
Secondly because the axial symmetry distribution that the adapter of its at least two is on vertical pressure vessel housing circumference so that air-flow Also axial symmetry distribution, becomes a kind of air inlet adapter that can be generally applicable to various airflow-distribution board and arrangement thereof.And Under equal process gas flow, the diameter of each air inlet tube can reduce, and the opening correspondence on housing reduces, opening pair The strength reduction of housing substantially can reduce.
By contrast, this technology is very beneficial for distribution grid above process gas and maintains the operating mode of metastable air pressure, In addition, take into account air-flow harmony, grain products mobility and internal structure fatigue durability simultaneously, there is anti-deposit ability By force, goods fluid fully, substantially do not have dead band, produce stable, flexible operation, operation elasticity bigger, product particle size and The advantages such as composition greater homogeneity and production cycle length, and combinative structure is simple, installs and easy to maintenance, structural member stress is more closed Reason, stability is high, and space layout is more safe and scientific, extends the service life of pressure vessel.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not constitute any limit to the present invention System, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain according to the following drawings Other accompanying drawing.
Fig. 1 is the overall structure schematic diagram of the fluidized-bed reactor of a kind of traditional structure.
Fig. 2 is the inlet structure schematic diagram of the fluidized-bed reactor of a kind of traditional structure.
Fig. 3 is the first inlet structure schematic diagram of a kind of pressure vessel air inlet of the present invention.
Fig. 4 is the second inlet structure schematic diagram of a kind of pressure vessel air inlet of the present invention.
Fig. 5 is the third inlet structure schematic diagram of a kind of pressure vessel air inlet of the present invention.
Fig. 6 is the 4th kind of inlet structure schematic diagram of a kind of pressure vessel air inlet of the present invention.
Fig. 7 is the 5th kind of inlet structure and the conic tube pressure vessel of a kind of pressure vessel air inlet of the present invention Structural representation.
Fig. 8 is the 6th kind of inlet structure schematic diagram of a kind of pressure vessel air inlet of the present invention.
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8 include: cylinder 1, upper cover 2, spherical low head 3, Upper shed 4, under shed 5, bearing 6, support ring 7, air inlet 8, airflow-distribution board 9, flange 10, the adapter the most gradually expanded is tied Structure 11, conic tube 12, non-radial inward nozzle 13;
A, A1, A2, A3 are the airintake directions of airflow inlet adapter,θAngle is the inclination angle of non-radial aperture adapter.
Detailed description of the invention
With reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6, one pressure vessel air inlet of the present invention, it is positioned at the housing of vertical pressure vessel On the cylinder 1 of the lower section of lower part fabric swatch or end socket 3, airflow-distribution board 9 being disposed with the opening of circumference, described pressure vessel enters QI KOU 8 includes the oblique perforate of tangential penetration that at least two is arranged along housing axial symmetry.Relative to radially and tangentially, oblique perforate Being all sideling, i.e. axis being radially arranged not along cylinder of perforate, the most non-tangentially-arranged along it, but transversal along cylinder One secant direction of face circle is arranged, and parallel being displaced outwardly of this secant may make up tangentially, is i.e. parallel to the oblique perforate of tangential direction, It is considered tangential oblique perforate.
First, as the pressure vessel of reactor body, at its housing shape is set and position is all that axial symmetry is arranged At least two air inlet, it is simple to axial symmetry distribution ground install air inlet tube on vertical pressure vessel housing circumference, improve from Process gas that reactor bottom is come in enters the fluidised form after housing, multiple adapters air inlet simultaneously thus reduced velocity flow, and pressure equalizes, Avoid impact shock, flowed out by the radial opening on airflow-distribution board the most again, make the material shape got off from reactor top Become the fluid bed of equilibrium, and realize the technical cue of the size of capacity.
Secondly because the axial symmetry distribution that the adapter of its at least two is on vertical pressure vessel housing circumference so that air-flow Also axial symmetry distribution, becomes a kind of air inlet adapter that can be generally applicable to various airflow-distribution board and arrangement thereof.And Under equal process gas flow, the diameter of each air inlet tube can reduce, and the opening correspondence on housing reduces, opening pair The strength reduction of housing substantially can reduce.
By contrast, this technology is very beneficial for distribution grid above process gas and maintains the operating mode of metastable air pressure, In addition, take into account air-flow harmony, grain products mobility and internal structure fatigue durability simultaneously, there is anti-deposit ability By force, goods fluid fully, substantially do not have dead band, produce stable, flexible operation, operation elasticity bigger, product particle size and The advantages such as composition greater homogeneity and production cycle length, and combinative structure is simple, installs and easy to maintenance, structural member stress is more closed Reason, stability is high, and space layout is more safe and scientific, extends the service life of pressure vessel.
More preferably, described air inlet include level or inner acclivitous non-radial layout penetrate be plugged in described tiltedly The air inlet tube of perforate, it includes two kinds of arrangements of level and inclination.
Wherein, described air inlet can include the joint pipe structure of non-radial perforate grafting of level.Such as, the cutting off of Fig. 3 Take over to triple feed inlet to symmetric double entrance sleeve, cutting off of Fig. 4, cut off to referring to take over long edges generating line and end socket 3 or cylinder 1 Circular arc is also crossing cuts an arch;And for example Fig. 5 tangent to Double Opening joint pipe structure, tangent take over long edges generating line to referring to Connect with the circular arc of end socket 3 or cylinder 1, it is impossible to cut an arch.Axisymmetric many makeups of the imports make air-flow produce rotation It is low that Two Dimensional Flow, equipment operational stability height, and equipment run flat energy expenditure ratio.Air inlet tube passes through flange 10 and source of the gas Conveying pipe connects.
Wherein, described air inlet 8 can also include inner slightly inclined upwardsθThe non-radial opening-nozzle structure of degree, i.e. The joint pipe structure that interior updip is tangentially connected, as shown in Figure 6.The plane rotation that the air inlet tube tilted can produce in the most various adapters On the basis of turning Two Dimensional Flow, then cause a flow field power upwards, form three-dimensional fluidised form.Three-dimensional fluidized bed is not due to by limit The impact of wall effect, in its fluidal texture, gas eddy is not limited to two-dimensional space development, it can be avoided that there is large scale in fluid bed Flat gas eddy.Therefore, it can be avoided that form the instability fluidized status such as joint gushes in three-dimensional fluidized bed, and entirety can be formed Circulation.Three-dimensional bed makes physical properties of fluids evenly, advantageously ensures that the equilibrium, fully of material reaction, the quality of improving product.
Further, the cross section of described air inlet tube is circular or oblate or rectangle, the circle easily company of installation Connecing, oblate and rectangle air inlet tube can produce shape impact to the flow field of air-flow.
Further, any two cross section of described air inlet tube is comparable size, or the adapter inwardly gradually expanded. Isodiametric adapter is prone to making and is easily installed.And the joint pipe structure wherein inwardly gradually expanded, i.e. enlarging shape adapter 11, such as figure Shown in 7, expander has the function slowing down flow velocity, it is to avoid the high velocity air that flow is big causes the impact shock to internals, keeps away Exempt from fatigue fracture.
Wherein, described air inlet tube reaches the tubular construction in housing in being, the inner segment of air inlet tube is by corresponding internal Supporting structure is connected with enclosure interior, i.e. the adapter of air inlet be smooth and easy in reach in housing structure, including corresponding inside Supporting structure, with reference to shown in Fig. 8.In housing, the air inlet pipe of extension arranges the work that can jointly improve in large pressurized vessel Skill air-flow state, or it is adjusted to the fluidised form that certain personnalité fluid bed of tool needs especially, to obtain specific production effect, Improve production efficiency, reach the adapter in housing and gas distribution hole or isocon also can be set, it is adaptable to major diameter container.Fluidisation In bed production technology, gas distribution is to ensure that the gas-solid fluidized bed key factor with good and stable fluidized state, directly Connect and affect the endocorpuscular flow pattern of fluid bed and fluidization uniformity, be the crucial institute that must consider of fluidized bed reactor designs , first gas inlet adapter determines the original state after air-flow enters housing, therefore should join for airflow-distribution board To the structure design carried out, the fluidised form of optimization just can be obtained.
Wherein, the interior end opening of air inlet tube 13 herein is diagonal cut joint, the otch of non-neat vertical axial, with oblique directly Line or arc cut out interior end opening so that interior end opening increases, and can enter the flow velocity of housing with mitigation of gases.
A kind of pressure vessel, including cylinder or cone cylinder 1, be arranged at the end socket at cylinder two ends, be respectively provided with The material inlet of the end socket in two ends and material outlet, the airflow-distribution board being arranged in cylinder and for supporting airflow-distribution board Inner supporting structure, wherein, the pressure vessel air inlet that described pressure vessel is provided with in aforementioned embodiments.Specifically, pressure The cylinder of container is cylinder 1 or conic tube 12;The end socket being arranged at cylinder two ends can be dome head or ellipse End socket or conical head;Top end socket is provided with material inlet, and bottom end socket is provided with material outlet.In implementation process, outside housing Process gas be to enter enclosure interior, import tangential from two or more tangential perforates arranged along housing axial symmetry Being in the same direction with the direction of distribution grid pore, axisymmetric import makes process gas surrounding fluidised form in shell uniform, and pressure equalizes, tangentially Structure then makes airflow smooth reduce pressure drop, it is to avoid internals are by impact shock.
Wherein, if conic tube is as it is shown in fig. 7, regard as air inlet adapter and airflow-distribution board respectively in leading portion flow process The primary factor of airflow stability and secondary factor, then can regard as air-flow in backend flow the cylinder after distribution grid again The association factor of stability.In air-flow uphill process, in order to be sufficiently mixed reaction with the material got off from above, also need to continue Keep certain pressure head flow velocity, if maintained the pressure head flow velocity in later stage by the inlet pressure bottom improving, it will usually upset The fluidised form of gas distribution grid link, therefore just becomes more suitably selection approach by the device structure of change backend flow, and Cone just has the function gradually tapering up tube structure maintenance internal gas flow flow velocity, and concrete cone height answers association reaction The height in district determines together with other factors.
Therefore, the tube structure gradually tapered up by the cone of distribution grid backend flow improves the function of air velocity, The pressure head flow velocity that can remain certain makes air-flow be sufficiently mixed reaction with the material got off from above, has adapted to use and has increased container Realize the technical cue of the size of capacity, it is to avoid maintain the pressure head flow velocity in later stage by the inlet pressure bottom improving Upset the fluidised form of gas distribution grid link, and avoid the increase of observable index.
Wherein, described container outlet is the radial aperture of the level that at least two is arranged along housing axial symmetry, radially Perforate makes the air-flow in housing flow out more swimmingly, and the gas outlet of axial symmetry distribution can make air-flow balancedly flow out, it is to avoid Aerofluxus orientation causes to be disturbed the air velocity distribution in housing.
In the present invention, in order to use expanding container to improve production capacity, the technical cue of employing is to use at least two shape With position (including direction) axial symmetry arrange air inlet tube penetrate container casing and go deep into inside container, air inlet tube inner segment to Upper inclination so that in housing, air-flow forms equilibrium fluidised form;Use conical vessel housing simultaneously, maintain back segment air-flow pressure head and stream Speed, maintains stable air pressure operating mode, does not upset the fluidised form of gas, it is thus achieved that meet pressure drop stability and good the resisting of fluidization quality is sunk Long-pending structure.
With the following Examples the present invention is described in further detail.
Embodiment 1.
A kind of pressure vessel of the present invention and air inlet thereof, air inlet is positioned at vertical pressure vessel shell lower part fabric swatch On the cylinder of lower section or end socket, concrete, take over to double feed inlet with reference to cutting off of Fig. 3, single entrance sleeve phase with the tradition of Fig. 2 Ratio, simply many entrance sleeves, its manufacturing process is not changed in, only straight at equal process gas flow lower linking tube Footpath can reduce, and specifically should be determined by design calculating.
Described cutting off also is intersected with the circular arc of end socket 3 or cylinder 1 and is cut an arch to referring to take over long edges generating line.
Embodiment 2.
A kind of pressure vessel of the present invention and the two of the detailed description of the invention of axisymmetric air inlet, with reference to shown in Fig. 4, The main technical schemes of the present embodiment is same as in Example 1, the most unaccounted feature, uses in embodiment 1 Explain, no longer repeat at this.The present embodiment is with the difference of embodiment 1, and wherein, described non-radial tangential admission connects Pipe quantity is increased cause three by uniform two pieces.
Embodiment 3.
A kind of pressure vessel of the present invention and the three of the detailed description of the invention of axisymmetric air inlet, with reference to shown in Fig. 5, The main technical schemes of the present embodiment is same as in Example 1, the most unaccounted feature, uses in embodiment 1 Explain, no longer repeat at this.The present embodiment is with the difference of embodiment 1, and the adapter of wherein said tangential entry is and shell Body is tangent to bilateral opening-nozzle structure, tangent to referring to the arc smooth transition phase of taking over long edges generating line with end socket 3 or cylinder 1 Connect the most tangent, no longer cut out an arch.
Embodiment 4.
A kind of pressure vessel of the present invention and the four of the detailed description of the invention of axisymmetric air inlet, with reference to Fig. 6, this reality The main technical schemes executing example is same as in Example 1, the most unaccounted feature, uses the explanation in embodiment 1, No longer repeat at this.The present embodiment is with the difference of embodiment 1, and wherein said air inlet is that the inner is slightly inclined upwardlyθThe non-radial opening-nozzle structure of degree, its manufacturing process does not has anything to change yet.Tilt adapter to produce in the most various adapters On the basis of raw Plane Rotation Two Dimensional Flow, then cause a flow field power upwards, form three-dimensional fluidised form, make physical properties of fluids Evenly, the equilibrium of material reaction, the abundant and quality of product are advantageously ensured that.
Embodiment 5.
A kind of pressure vessel of the present invention and the five of the detailed description of the invention of axisymmetric air inlet, with reference to Fig. 7, this reality The main technical schemes executing example is same as in Example 1, the most unaccounted feature, uses the explanation in embodiment 1, No longer repeat at this.The present embodiment is with the difference of embodiment 1, and wherein said air inlet tube is inwardly gradually to expand Joint pipe structure, its manufacturing process does not has anything to change compared with cylindrical shape adapter yet, and simply steel plate cutting is slightly distinguished, and is all metal plate The general knowledge of metal working and basic skill.Expander has the function slowing down flow velocity, it is to avoid the high velocity air of big flow causes rushing of internals Hit vibration, fatigue fracture.
Embodiment 6.
A kind of pressure vessel of the present invention and the six of the detailed description of the invention of axisymmetric air inlet, with reference to Fig. 7, this reality The main technical schemes executing example is same as in Example 1, the most unaccounted feature, uses the explanation in embodiment 1, No longer repeat at this.The present embodiment is with the difference of embodiment 1, and the cylindrical tube of wherein said reactor changes into circle Conic tube, its manufacturing process does not has anything to change compared with cylindrical shape adapter yet, and simply steel plate cutting is slightly distinguished, and is all panel beating The general knowledge of work and basic skill.Cone shell just has the function gradually tapering up the flow velocity that tube structure raising should reduce, i.e. Maintain flow velocity or reduce flow velocity reduction amount, make the air-flow after distribution grid in uphill process, in order to get off from above Material be sufficiently mixed reaction, can continue to keep certain pressure head flow velocity.Concrete cone height answers the height in association reaction district Degree determines together with other factors.
Embodiment 7.
A kind of pressure vessel of the present invention and the seven of the detailed description of the invention of axisymmetric air inlet, with reference to Fig. 8, this reality The main technical schemes executing example is same as in Example 1, the most unaccounted feature, uses the explanation in embodiment 1, No longer repeat at this.The present embodiment is with the difference of embodiment 1, the wherein said reactor i.e. air inlet connecting of pressure vessel Pipe extends to enclosure interior, and in the adapter of the section of stretching gas distribution hole or isocon also can be set, to be applicable to major diameter container. Its manufacturing process of inward nozzle does not has anything to change compared with non-inward nozzle yet, and simply steel plate cutting is slightly longer, is all metal plate The general knowledge of metal working and basic skill.
Embodiment 8.
A kind of pressure vessel of the present invention and the eight of the detailed description of the invention of axisymmetric air inlet, the master of the present embodiment Want technical scheme same as in Example 1, the most unaccounted feature, use the explanation in embodiment 1, at this no longer Repeat.The present embodiment is with the difference of embodiment 1, and wherein said air inlet and air inlet tube structure are the most only applied In being connected on various end socket, it is also suitable for being connected on cylinder.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention Matter and scope.

Claims (8)

1. a pressure vessel air inlet, is positioned at cylinder or the end socket of the lower section of the housing lower part fabric swatch of vertical pressure vessel On, distribution grid is disposed with the opening of circumference, it is characterised in that: described pressure vessel air inlet includes that at least two is along housing The oblique perforate of tangential penetration that axial symmetry is arranged.
A kind of pressure vessel air inlet the most according to claim 1, it is characterised in that: described air inlet includes level or interior That holds acclivitous non-radial layout penetrates the air inlet tube being plugged in described oblique perforate.
A kind of pressure vessel air inlet the most according to claim 2, it is characterised in that: the cross section of described air inlet tube is Circular or oblate or rectangle.
4. according to a kind of pressure vessel air inlet described in Claims 2 or 3, it is characterised in that: described air inlet tube any Two cross sections are comparable size, or the adapter inwardly gradually expanded.
5. according to a kind of pressure vessel air inlet described in claim 2, it is characterised in that: described air inlet tube reaches in being Tubular construction in housing, the inner segment of air inlet tube is connected with enclosure interior by corresponding internal supporting structure.
6. according to a kind of pressure vessel air inlet described in Claims 2 or 3 or 5, it is characterised in that: described air inlet tube interior End opening is diagonal cut joint.
7. a pressure vessel, including cylinder or the cylinder of cone, is arranged at the end socket at cylinder two ends, is respectively arranged at two The material inlet of end socket of end and material outlet, the airflow-distribution board being arranged in cylinder and in supporting airflow-distribution board Supporting structure, it is characterised in that: described pressure vessel is provided with the pressure vessel air inlet described in claim 1 to 6.
A kind of pressure vessel the most according to claim 7, it is characterised in that: described container outlet be at least two along The radial aperture of the level that housing axial symmetry is arranged.
CN201610650672.6A 2016-08-10 2016-08-10 A kind of pressure vessel and air inlet thereof Pending CN106076204A (en)

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US20100068043A1 (en) * 2008-09-18 2010-03-18 Yevgeniy Shteyman Cooling structure for outer surface of a gas turbine case
CN201753269U (en) * 2010-07-23 2011-03-02 福州大学 Two-stage fluidized bed provided with expanded setting chamber for producing aluminum fluoride by dry method
CN102172465A (en) * 2011-02-23 2011-09-07 天津大学 Tangential distribution-type large-diameter multi-inlet gas distributor and application thereof in carbon dioxide adsorption tower
CN103818950A (en) * 2014-02-27 2014-05-28 重庆大学 Boiling chlorination furnace for preparing titanium tetrachloride by using fine-graded artificial rutile
CN205965774U (en) * 2016-08-10 2017-02-22 茂名重力石化机械制造有限公司 Pressure vessel and air inlet thereof

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