CN206731081U - A kind of gas feed distributor and three phase slurry bed reactor - Google Patents

A kind of gas feed distributor and three phase slurry bed reactor Download PDF

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Publication number
CN206731081U
CN206731081U CN201720196498.2U CN201720196498U CN206731081U CN 206731081 U CN206731081 U CN 206731081U CN 201720196498 U CN201720196498 U CN 201720196498U CN 206731081 U CN206731081 U CN 206731081U
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China
Prior art keywords
gas
nozzle
feed distributor
gas nozzle
distribution tube
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CN201720196498.2U
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Chinese (zh)
Inventor
张晓方
卜亿峰
门卓武
姚德良
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Shenhua Group Corp Ltd
National Institute of Clean and Low Carbon Energy
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Shenhua Group Corp Ltd
National Institute of Clean and Low Carbon Energy
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Priority to CN201720196498.2U priority Critical patent/CN206731081U/en
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Abstract

Reactor field is the utility model is related to, in particular it relates to a kind of gas feed distributor and three phase slurry bed reactor.The gas feed distributor includes inlet manifold (3), gas distribution tube (2) and gas nozzle (1), the inlet manifold (3) connects with the gas distribution tube (2), the perforate that Open Side Down is provided with the gas distribution tube (2), the gas nozzle (1) is connected with the perforate, and the air-flow of unified flow direction can be formed by the gas nozzle (1);One or more of the vertical section shape of the gas nozzle (1) in oval, single circular arc, Gothic, streamlined, taper and iso-variable velocity shape.Gas feed distributor of the present utility model is simple in construction, can form strong turbulent environment, and can perform well in three phase slurry bed reactor.

Description

A kind of gas feed distributor and three phase slurry bed reactor
Technical field
Reactor field is the utility model is related to, in particular it relates to which a kind of gas feed distributor and three phase slurry bed are anti- Answer device.
Background technology
Three phase slurry bed reactor because its is simple in construction, material dispersion effect is good and transfer performance is good etc., in methanol close by advantage Successful application is achieved into the techniques such as, Fischer-Tropsch synthesis oil.But due to existing while gas, liquid, solid, to gas in reactor Distribution brings very big challenge, due to the presence of slurries, is interrupted when gas flow reduces or supplied, slurries occur that adverse current is existing As if supply interrupts for a long time, the solid particle (such as catalyst) in slurries can largely be deposited on reactor bottom, Severe blockage Distributor duct, the unstable operation such as cause sintering of catalyst, can not be again started up.Therefore, the gas of three phase slurry bed reactor For its long-time stable, continuously operation is very important to body distributor designs.
At present, gas distributor one kind of domestic main flow is that gas enters bed by distributor pipe, and another kind is by dividing Fabric swatch enters bed.Tubular gas distributor is to set air inlet supervisor and branch pipe, and a number of open is set on every branch pipe Hole, perforate is generally down-set, and the upward bubbling of blow-back is entered inside bed.In order to ensure stream of the gas in tapping Speed, opening diameter is smaller, generally 1~8mm, and air-flow liquidates more apparent, and gas does not have limitation in structure, form not after spraying It is controllable.Distribution plate type gas distributor is to separate low head with distribution grid with reactor shell, and gas is entered by air inlet pipe Below distribution grid, bed is entered by the nozzle on distribution grid or distribution hole.Existing gas distributor structure can not solve completely Certainly distributor parking when occur pour in down a chimney and blockage problem.
Tubular gas distributor is a kind of structure of distributor that application is most in current paste state bed reactor. A kind of structure of distributor of radial distribution multilayer disclosed in CN201728094U, every layer of distributor pipe have the different circle of multiple diameters Shape distributor pipe and some equally distributed radial connecting tubes, the uniform downward perforate on distributor pipe, gas nozzle is formed, By the control to nozzle quantity and aperture, to realize the uniform of gas.The design of Multi-layers distributing pipe can be efficiently modified catalysis Agent distribution situation, but every layer of feed pipe of distributor still can not avoid catalyst from sinking completely apart from reactor bottom distance The generation of product phenomenon.
The disclosed structure of distributor for being used for fischer-tropsch reaction three phase slurry bed reactor of CN204564077U, distributor by For the top layer distributor pipe of plane layer body shape with being formed in the bottom distributor pipe of cambered surface layer body shape, downward gas perforate can connect nozzle Coutroi velocity, it is desirable to which the gas of top layer sprays flow velocity height, far firing range, and the gas flow rate of bottom is then unsuitable excessive.Due to being layered cloth Put, gas distribution is more uniform, and bottom charging distributor pipe is close to reactor bottom wall, can be better protected from catalyst in reactor The deposition of bottom.Though above pipe distributor improves catalyst fluidization situation to a certain extent, space structure is more multiple Miscellaneous, installation and operation to commercial plant are made troubles.
Three phase slurry bed reactor partial structurtes disclosed in CN204522946U, be characterized in gas distribution tube on to Under be provided with the jet pipe of metering function, jet pipe top is provided with baffle plate, and side wall is provided with multiple spray orifices, and gas is after current-limiting apparatus By spray orifice radial distribution.The setting of the distributor jet pipe can be adjusted effectively into gas reactor flow, but due on jet pipe Spray orifice to be horizontally arranged so that gas after spout circulating direction by being axially changed to radially, it is impossible at reactor bottom Portion forms strong turbulent environment, and gas distributed effect is deteriorated, it is impossible to solves the problems, such as catalyst deposit.
In the prior art method, gas generally from distribution hole straight line spray, impulsive force is big, the abrasion to catalyst compared with To be serious, and gas tangentially enters distribution hole from distributed pipeline, and gas can not obtain unified flow direction, can not form rule Strong turbulent flow.In addition, complicated space structure also brings difficulty to industry installation and maintenance.
Utility model content
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art, there is provided a kind of new gas feed distributor and Three phase slurry bed reactor.Gas feed distributor of the present utility model is simple in construction, can form strong turbulent environment, and Three phase slurry bed reactor can be performed well in.
The utility model provides a kind of gas feed distributor, wherein, the gas feed distributor include inlet manifold, Gas distribution tube and gas nozzle, the inlet manifold connect with the gas distribution tube, are provided with out on the gas distribution tube The downward perforate of mouth, the gas nozzle are connected with the perforate, and the gas of unified flow direction can be formed by the gas nozzle Stream;The vertical section shape of the gas nozzle is selected from streamlined, oval, single circular arc, Gothic, taper and iso-variable velocity shape In one or more.
Preferably, the gas nozzle is shaped as fairshaped gas nozzle including vertical section.
Preferably, the vertical section, which is shaped as fairshaped gas nozzle, includes nozzle chamber, changeover portion and diffuser, institute The upper end for stating nozzle chamber is connected with the perforate on the gas distribution tube, and is contracting from the nozzle chamber to the changeover portion Footpath, from the changeover portion to the diffuser to be expanding.
Preferably, the angle in the sideline of the diffuser and axial direction is 0-30 °.
Preferably, the axial overall length of the gas nozzle is 25-30mm.
Preferably, the internal diameter of the gas distribution tube is d, then the aperture of the perforate downwards on the gas distribution tube For 1d-4d, the size of the lower ending opening of the diffuser is 1d-2d, the gas nozzle opening on the gas distribution tube By being calculated, calculation formula is hole count:Number of aperture=percent opening × gas feed distributor sectional area ÷ (π × gas spray Mouth exit radius ^2), wherein percent opening is 0.5%-30%.
Preferably, the gas nozzle is internally provided with whirl insert, the circulation inclination angle of the whirl insert for 30 °~ 45 °, rotation core diameter is 11~18mm.
Preferably, the gas distribution tube and the gas nozzle are configured as making the gas from the gas distribution tube Tangentially enter the gas nozzle.
Preferably, the gas nozzle is connected on the gas distribution tube in the way to insert, and the length of insertion is 1- 10mm。
The utility model additionally provides a kind of three phase slurry bed reactor, wherein, set in the three phase slurry bed reactor The gas feed distributor put is gas feed distributor of the present utility model.
Preferably, the bottom of the reactor shell of the three phase slurry bed reactor is circular arc, and the gas feed divides The set-up mode of gas nozzle is on cloth device:Gas nozzle in 1/3~1/2 radius close to axis is vertical section shape For fairshaped gas nozzle, peripheral gas nozzle is the gas nozzle that vertical section is shaped as taper.
By above-mentioned technical proposal of the present utility model, gas is set to spray in each distribution bottom of the tube of gas feed distributor Mouth, gas obtain unified flow direction by nozzle, so as to form strong and uniform turbulent environment in reactor bottom;When Uniform flow field can be formed during for three phase slurry bed reactor in bottom, catalyst can be prevented in the heavy of reactor bottom Product, gas nozzle also reduce the impulsive force of air-flow, alleviate abrasion of the air-flow to catalyst.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings:
Fig. 1 is according to the gas feed distributor of the present utility model that fairshaped gas nozzle is shaped as including vertical section Partial enlarged drawing.
Fig. 2 is the three phase slurry bed for being provided with gas feed distributor according to a kind of embodiment of the utility model The side view of reactor.
Fig. 3 is to be shaped as oval (Fig. 3 a), single circular arc (Fig. 3 b), Gothic according to vertical section of the present utility model The schematic diagram of (Fig. 3 c), taper (Fig. 3 d) and iso-variable velocity shape (Fig. 3 e) gas nozzle.
Fig. 4 is bowing according to the reactor for being provided with gas feed distributor of embodiment of the utility model a kind of View.
Description of reference numerals
1 gas nozzle;101 nozzle chambers;102 changeover portions;103 diffusers;104 whirl inserts;
2 gas distribution tubes;201 gas distribution tube house stewards;202 gas distribution tube branch pipes;
3 inlet manifolds;4 reactor shells.
Embodiment
Specific embodiment of the present utility model is described in detail below.It is it should be appreciated that described herein Embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more New number range, these number ranges should be considered as specific open herein.
In the utility model, in the case where not making opposite explanation, the noun of locality such as " upper and lower " used typically refers to join Examine shown in the drawings upper and lower, the connection term used typically refers to the annexation shown in refer to the attached drawing.
The utility model provides a kind of gas feed distributor, as shown in Fig. 2 wherein, the gas feed distributor bag Inlet manifold 3, gas distribution tube 2 and gas nozzle 1 are included, the inlet manifold 3 connects with the gas distribution tube 2, the gas The perforate that Open Side Down is provided with body distributor pipe 2, the gas nozzle 1 connects with the perforate, and passes through the energy of gas nozzle 1 Enough air-flows for forming unified flow direction;The vertical section shape of the gas nozzle 1 is selected from streamlined, oval, single circular arc, double circles One or more in arc, taper and iso-variable velocity shape.
Prior art is generally not provided with gas nozzle and only sets gas perforate, or generally not to the inside of gas nozzle Structure is configured but uses simple tubular structure as gas nozzle, and inventor of the present utility model has found, passes through By the internal structure of gas nozzle be arranged to vertical section be shaped as streamlined, oval, single circular arc, Gothic, taper and One or more in iso-variable velocity shape, it can effectively improve the mobility status of gas, passing the gas through nozzle can obtain more Unified flow direction, and form stronger and uniform turbulent environment in reactor bottom.
In the utility model, oval, the single circular arc, Gothic, the tool of streamlined, taper and iso-variable velocity shape Body structure can be carried out according to this area to the conventional set-up mode of these shapes, such as respectively such as Fig. 1 (streamlined), Fig. 3 a (ellipse), Fig. 3 b (single circular arc), Fig. 3 c (Gothic), Fig. 3 d (taper) and Fig. 3 e (iso-variable velocity shape) are shown.Wherein scheme Single circular arc and the difference of the Gothic shown in Fig. 3 c shown in 3b essentially consist in inlet channel bus camber line species, and this is specific Set-up mode be known to the skilled person, will not be repeated here.Above-mentioned each vertical section shape is relative to longitudinal axis DNA mitochondrial DNA is symmetrical, will each vertical section shape relative to longitudinal axis rotation i.e. obtain the inside stereochemical structure of gas nozzle 1.
In the utility model, there is no particular limitation for the concrete shape parameter of the vertical section shape of the gas nozzle 1, On the basis of requirement of this area to specific figure is met, the vertical section shape of the gas nozzle 1 preferably meets that lower end is opened The size of mouth (i.e. gas vent) is less than the size of upper end open (i.e. the interface of gas nozzle 1 and gas distribution tube 2).
In the utility model, the concrete shape parameter of the vertical section shape of the gas nozzle 1 causes discharge coefficient (C) Can be 0.8-1, preferably 0.9-1;Potential core's length can be 2d0-6d0, preferably 4d0-6d0, wherein d0For jet expansion Internal diameter.The nozzle manufactures and designs according to GB/T2624-1993, and the discharge coefficient is according in the GB/T2624-1993 standards Formula calculated, the test mode of potential core's length is:Photographic process, pitot tube method etc..
In the utility model, normally, the fairshaped discharge coefficient is 0.9-0.96, and potential core's length is 5.2d0-5.6d0;The discharge coefficient of the taper is 0.92-0.96, and potential core's length is 4.6d0-5d0;The oval stream Coefficient of discharge is 0.95-0.98, and potential core's length is 5.2d0-5.6d0;The discharge coefficient of single circular arc is 0.9-0.97, etc. Fast core length is 4.6d0-5d0;The discharge coefficient of the Gothic is 0.96-0.98, and potential core's length is 5.6d0-6d0;Institute The discharge coefficient for stating iso-variable velocity shape is 0.96-0.985, and potential core's length is 5d0-5.4d0
In the utility model, it is preferable that the gas nozzle 1 is shaped as fairshaped gas nozzle including vertical section.
In the utility model, as shown in figure 1, the vertical section, which is shaped as fairshaped gas nozzle, can include nozzle Cavity 101, changeover portion 102 and diffuser 103, the upper end of the nozzle chamber 101 connect with the perforate on the gas distribution tube 2 Connect, and be undergauge from the nozzle chamber 101 to the changeover portion 102, be from the changeover portion 102 to the diffuser 103 Expanding or uniform footpath (preferably expanding).Thus, when air-flow is by gas nozzle 1 of the present utility model, in nozzle chamber 101 Middle to converge and obtain unified flow direction, air velocity increase, eventually passes through diffuser at the narrower changeover portion 102 of internal diameter The 103 uniform turbulent air flow ejections with strong.
In the utility model, it is shaped as in the vertical section in fairshaped gas nozzle, the shape of the changeover portion 102 There is no particular limitation for shape, such as in cylinder.
In the utility model, it is shaped as in the vertical section in fairshaped gas nozzle, the shape of the diffuser 103 There is no particular limitation for shape, meets to the internal diameter of lower ending opening gradually to be expanded by upper end and the junction of changeover portion 102, such as It can be in round estrade.
In the utility model, it is shaped as in the vertical section in fairshaped gas nozzle, the side of the diffuser 103 Line (i.e. the bus of round platform) and the angle of axial direction are preferably 0-30 °, more preferably 10 ° -20 °.
In the utility model, it is shaped as in the vertical section in fairshaped gas nozzle, the nozzle chamber 101 The ratio of the size of the lower ending opening of the size (i.e. internal diameter) of upper end open, the size of changeover portion 102 and diffuser 103 can be 1-4:1:1-2, preferably 2-3:1:1-1.8.
In the utility model, it is shaped as in the vertical section in fairshaped gas nozzle, the nozzle chamber 101, The ratio of the axial length of changeover portion 102 and diffuser 103 can be 2-6:1:0.5-1.5, preferably 2-5:1:0.5-1.
In the utility model, it is preferable that the gas nozzle 1 can also include the gas spray that vertical section is shaped as taper Mouth.
In the utility model, the concrete shape parameter that the vertical section is shaped as the gas nozzle of taper is not special Limit, the sideline (i.e. bus) of the taper for example can be 2-30 °, more preferably 8 ° -15 ° with the angle of axial direction.
In the utility model, there is no particular limitation for the axial overall length of the gas nozzle 1, can gas as needed Flow and air velocity are set, such as the axial overall length of the gas nozzle 1 for example can be 25-30mm.
In the utility model, if the internal diameter for assuming the gas distribution tube 2 is d, the institute on the gas distribution tube 2 The aperture for stating downward perforate can be 1d-4d, and the size of the lower ending opening of the diffuser 103 can be 1d-2d;The diffusion The size of the lower ending opening of section 103 for example can be 1-5mm, preferably 2-4mm, so as to help so that nozzle gas velocity can reach To 10-100m/s, preferably 30-90m/s;Number of aperture of the gas nozzle 1 on the gas distribution tube 2 can pass through meter Obtain, calculation formula can be:Number of aperture=percent opening × gas feed distributor sectional area ÷ (π × gas nozzle outlet Radius ^2), wherein percent opening can be 0.5%-30%, preferably 0.8-10%.In the utility model, term " percent opening " edge With the conventional definition in this area, i.e. the perforate gross area accounts for the percentage of gas feed distributor sectional area.
In the utility model, the gas distribution tube 2 and the gas nozzle 1 can be configured as making to come from the gas The gas of body distributor pipe 2 tangentially enters the gas nozzle 1, thus, rotation is produced when gas enters in the nozzle chamber 101 Turn, so as to be more beneficial for being formed vortex or turbulent flow.
In the utility model, in order that air-flow preferably forms vortex in the gas nozzle 1, it is preferable that in institute State gas nozzle 1 inside (when for it is streamlined when, be arranged inside nozzle chamber 101) be provided with whirl insert 104, such as Fig. 1 It is shown.There is no particular limitation for the whirl insert 104, for example, the circulation inclination angle of the whirl insert 104 be preferably 30 °~ 45 °, more preferably 30 °~40 °, rotation core diameter is preferably 11~18mm, more preferably 12-16mm.The whirl insert 104 can To use the various whirl inserts for meeting above-mentioned circulation inclination angle and revolving core diameter that can be commercially available in this area.The vortex is inserted The setting of core can also effectively reduce the air-flow after gas sprays and liquidate, and mitigate the abrasion to catalyst.
In the utility model, it is preferable that the gas nozzle 1 is connected to the gas distribution tube 2 in the way to insert On, the length of insertion can be 1-10mm, preferably 2-8mm.
In the utility model, the gas distribution tube 2 can be arranged in approximately the same plane more, this more There is no particular limitation for number and specific arrangement, can form equally distributed flow field.The more gas Distributor pipe 2 separately can be connected with the inlet manifold 3, can also be divided into supervisor and branch pipe, by supervisor with it is described enter Gas house steward 3 is connected, and then air-flow enters branch pipe by supervisor.For example, according to a kind of specific embodiment of the utility model, such as Shown in Fig. 4, the inlet manifold 3 is arranged on the axis of reactor shell 4, and 3 vertical connection of inlet manifold two is mutually Vertically into cross-shaped gas distribution tube supervisor 201, in this two cross-shaped gas distribution tubes are responsible on 201 The heart is symmetrically placed with the circular gas distribution tube branch pipe 202 of multi-turn;The radical (number of turns) of the gas distribution tube branch pipe 202 There is no particular limitation, can reasonably be prepared according to the size of percent opening and reactor.
Gas feed distributor of the present utility model can be applied to various need to carry out gas feed and need air-flow shape Into the reactor in the flow field of the turbulent environment of strong homogeneous.
The utility model additionally provides a kind of three phase slurry bed reactor, wherein, set in the three phase slurry bed reactor The gas feed distributor put is gas feed distributor of the present utility model, as shown in Figure 2.
The bottom of the reactor shell 4 of usual three phase slurry bed reactor is circular arc in this area, therefore diverse location Distance of the gas nozzle apart from bottom it is different, so as to gas be distributed it is uneven in height.It is although of the present utility model Gas feed distributor can form strong turbulent environment, the problem of so as to avoid catalyst deposit substantially, but In the case of preferable, the utility model can be by changing the internal junction of the gas nozzle on gas feed distributor diverse location Structure improves above mentioned problem.
Specifically, the gas nozzle of the gas feed distributor can be configured according to the principle of " remote fast near slow ", I.e. the set-up mode of the gas nozzle of gas feed distributor can include:Apart from bottom remote position, i.e., close gas At the center of distributor pipe, from the Streamline Nozzles that discharge coefficient is larger, potential core's length is larger;And nearer apart from bottom Position, the i.e. periphery in gas distribution tube, from the tapered runner nozzle that discharge coefficient is smaller, potential core's length is less than normal so that The flow velocity of the gas of ejection is slower.
According to a kind of specific embodiment of the utility model, the setting of gas nozzle 1 on the gas feed distributor Mode is:Gas nozzle in 1/3~1/2 radius close to axis is shaped as fairshaped gas nozzle for vertical section, The gas nozzle of periphery is shaped as the gas nozzle of taper for vertical section.
In the utility model, position of the gas feed distributor in the three phase slurry bed reactor for example may be used Think:The gas feed distributor is located at the bottom bulkhead of the three phase slurry bed reactor and the level of vertical tube part interfaces On face.
According to a kind of specific embodiment of the utility model, as shown in Figure 1, Figure 2, shown in Fig. 3 d and Fig. 4.In three phase slurry bed Reactor bottom end socket on the horizontal plane of vertical tube part interfaces with being provided with gas feed distributor.The gas feed distributor Including inlet manifold 3, gas distribution tube 2 and gas nozzle 1, wherein the inlet manifold 3 is arranged at the axis of reactor shell 4 On line, 3 vertical connection of inlet manifold two is mutually perpendicular into cross-shaped gas distribution tube supervisor 201, at this two The circular gas distribution tube branch pipe 202 of multi-turn is symmetrically placed with cross-shaped gas distribution tube supervisor 201. The gas nozzle 1 is connected on the gas distribution tube 2 in the way to insert, and the length of insertion is 5mm.Also, different positions The gas nozzle put is arranged to:Gas nozzle in 1/3 radius close to axis is shaped as streamlined for vertical section Gas nozzle, peripheral gas nozzle be vertical section be shaped as taper (sideline with axial direction angle be 8 °) gas nozzle. Wherein, the vertical section, which is shaped as fairshaped gas nozzle 1, includes nozzle chamber 101, changeover portion 102 and diffuser 103, institute It is in cylinder to state changeover portion 102, and the diffuser 103 is in round estrade, and the angle in the sideline and axial direction of the diffuser 103 is preferred For 15 °;The lower ending opening of the size of the upper end open of the nozzle chamber 101, the size of changeover portion 102 and diffuser 103 The ratio of size is 2:1:1.7, the ratio of the axial length of the nozzle chamber 101, changeover portion 102 and diffuser 103 is 3:1: 1.Under the aperture and diffuser 103 of the perforate downwards on the internal diameter of the gas distribution tube 2, the gas distribution tube 2 The ratio of the size of end opening is 1:3:1.5.The diameter of the jet of the gas nozzle 1 (is i.e. opened the lower end of diffuser 103 Mouthful) it is 3mm, the gas velocity ejected from the jet is 60m/s.The nozzle chamber 101 and the vertical section are shaped as taper The inside of gas nozzle be provided with whirl insert 104, the circulation inclination angle of the whirl insert 104 is 40 °, and rotation core diameter is 15mm。
By using the three phase slurry bed reactor of the above-mentioned embodiment of the utility model, gas passes through inlet manifold 3 enter the gas feed distributor and form the unified air-flow flowed to by gas nozzle 1 to spray, and are set by specific Put the internal structure of the gas nozzle on diverse location so that apart from the Diffusion of gas stream angle of the ejection of the gas nozzle of bottom farther out It is smaller, flow velocity is larger, and the Diffusion of gas stream angle of the ejection of the gas nozzle nearer apart from bottom is larger, flow velocity is relatively small, from And strong and uniform turbulent environment is formed in the bottom of three phase slurry bed reactor, and ensure that air-flow is forming three phase slurry bed Uniform flow field is formed on the bottom of reactor, can prevent catalyst in the deposition of reactor bottom, and of the present utility model Gas nozzle also reduces the impulsive force of air-flow, mitigates abrasion of the air-flow to catalyst.
Preferred embodiment of the present utility model described in detail above, still, the utility model is not limited to above-mentioned reality The detail in mode is applied, in range of the technology design of the present utility model, the technical solution of the utility model can be entered The a variety of simple variants of row, these simple variants belong to the scope of protection of the utility model.It is further to note that above-mentioned Each particular technique feature described in embodiment, in the case of reconcilable, any suitable side can be passed through Formula is combined, and in order to avoid unnecessary repetition, the utility model no longer separately illustrates to various combinations of possible ways.This Outside, can also be combined between a variety of embodiments of the present utility model, as long as it is new without prejudice to this practicality The thought of type, it should equally be considered as content disclosed in the utility model.

Claims (11)

1. a kind of gas feed distributor, it is characterised in that the gas feed distributor includes inlet manifold (3), gas is distributed Pipe (2) and gas nozzle (1), the inlet manifold (3) connect with the gas distribution tube (2), on the gas distribution tube (2) The perforate that Open Side Down is provided with, the gas nozzle (1) connects with the perforate, and can be formed by the gas nozzle (1) The air-flow of unified flow direction;The vertical section shape of the gas nozzle (1) is selected from streamlined, oval, single circular arc, bicircular arcs One or more in shape, taper and iso-variable velocity shape.
2. gas feed distributor according to claim 1, wherein, the gas nozzle (1) is shaped as including vertical section Fairshaped gas nozzle.
3. gas feed distributor according to claim 1 or 2, wherein, the vertical section is shaped as fairshaped gas Nozzle (1) includes nozzle chamber (101), changeover portion (102) and diffuser (103), the upper end of the nozzle chamber (101) and institute The perforate connection on gas distribution tube (2) is stated, and is undergauge from the nozzle chamber (101) to the changeover portion (102), from institute It is expanding that changeover portion (102), which is stated, to the diffuser (103).
4. gas feed distributor according to claim 3, wherein, the angle in the sideline and axial direction of the diffuser (103) For 0-30 °.
5. gas feed distributor according to claim 1, wherein, the axial overall length of the gas nozzle (1) is 25- 30mm。
6. gas feed distributor according to claim 3, wherein, the internal diameter of the gas distribution tube (2) is d, then institute The aperture for stating the perforate downwards on gas distribution tube (2) is 1d-4d, the size of the lower ending opening of the diffuser (103) For 1d-2d, by being calculated, calculation formula is number of aperture of the gas nozzle (1) on the gas distribution tube (2): Number of aperture=percent opening × gas feed distributor sectional area ÷ (π × gas nozzle exit radius ^2), wherein percent opening is 0.5%-30%.
7. gas feed distributor according to claim 1, wherein, the gas nozzle (1) is internally provided with vortex Lock pin (104), the circulation inclination angle of the whirl insert (104) is 30 °~45 °, and rotation core diameter is 11~18mm.
8. gas feed distributor according to claim 1, wherein, the gas distribution tube (2) and the gas nozzle (1) it is configured as the gas from the gas distribution tube (2) is tangentially entered the gas nozzle (1).
9. gas feed distributor according to claim 1, wherein, the gas nozzle (1) connects in the way to insert Onto the gas distribution tube (2), the length of insertion is 1-10mm.
A kind of 10. three phase slurry bed reactor, it is characterised in that the gas feed point set in the three phase slurry bed reactor Cloth device is the gas feed distributor described in any one in claim 1-9.
11. three phase slurry bed reactor according to claim 10, wherein, the reactor of the three phase slurry bed reactor The bottom of cylinder (4) is circular arc, and the set-up mode of gas nozzle (1) is on the gas feed distributor:Close to axis Gas nozzle (1) in 1/3~1/2 radius of line is shaped as fairshaped gas nozzle, peripheral gas nozzle for vertical section (1) gas nozzle of taper is shaped as vertical section.
CN201720196498.2U 2017-03-02 2017-03-02 A kind of gas feed distributor and three phase slurry bed reactor Active CN206731081U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109775728A (en) * 2019-03-22 2019-05-21 淮阴工学院 The inlet duct of variable diameter carbonators

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109775728A (en) * 2019-03-22 2019-05-21 淮阴工学院 The inlet duct of variable diameter carbonators
CN109775728B (en) * 2019-03-22 2021-09-17 淮阴工学院 Air inlet device of reducing carbonization tower

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