CN208865612U - Supplement material predistribution device, fluid mixed allocation equipment and multistage feeding formula reactor - Google Patents

Abstract

This disclosure relates to a kind of supplement material predistribution device, fluid mixed allocation equipment and multistage feeding formula reactor.The supplement material pre-allocates device, for being arranged between the solid particle bed of two-stage up and down of multistage feeding formula reactor, including the ring pipe (5) being connected to for the supplement material inlet with reactor, the ring pipe (5) and the reactor are coaxially arranged, and the tube wall of the ring pipe (5) is equipped with equally distributed multiple spray orifices (18), for being mixed with the upper layer reaction mass obtained from upper level solid particle bed (2).The supplement material predistribution device of the disclosure can significantly improve supplement material in the distributing homogeneity in bed section.The fluid mixed allocation equipment of the disclosure strengthens hybrid mode using the predistribution of supplement material Variable Mass Flow and Sprial-flow suction, significantly improves mixing efficiency, can effectively eliminate bed section material composition concentration distribution gradient, and fluid is low by pressure drop.

Description

It is anti-to supplement material predistribution device, fluid mixed allocation equipment and multistage feeding formula Answer device

Technical field

This disclosure relates to field of petrochemical industrial, and in particular, to a kind of supplement material predistribution device, fluid mixing Distributing equipment and multistage feeding formula reactor.

Background technique

Currently, one of the main task of petroleum refining industry is to provide transport fuel, gasoline is as a kind of important transport combustion Material, is widely used in the industries such as communications and transportation.With gasoline consumption increase and environmental protection standard it is increasingly strict, enclose Around how to solve the problems, such as gasoline cleaning metaplasia produce as research and discuss hot spot.

It is that raw material generates alkane with isoparaffin (mainly iso-butane) and alkene (C3~C5 alkene) under the action of strong acid The technology of base carburetion provides possibility for the cleanly production of gasoline.Alkylate oil octane number with higher and lower steam Pressure, is mainly made of saturated hydrocarbons, and the not substances such as sulfur-bearing, nitrogen, alkene and aromatic hydrocarbons, thus is referred to as and cleans gasoline, is aviation Gasoline and the ideal blend component of motor petrol.Alkylation techniques can be divided into liquid acid alkylation and solid by catalyst mode Acid alkylation.Currently, about 90% alkylation production capacity is by liquid acid alkylation techniques (sulfuric acid process and hydrofluoric acid in world wide Method) provide, although liquid acid alkylation techniques comparative maturity, and there is preferable reaction selectivity, there is also very much All there is equipment seriously corroded in problem, such as liquid acid alkylation process.In addition to this, for sulfuric acid process, Process acid consumption is huge, and a large amount of spent acid all has some potential safety problems in transport and processing, for hydrogen fluoride, Since hydrofluoric acid has stronger corrosivity and toxicity, and it is readily volatilized, very big injury can be caused to human body.Therefore, with Comparison not can cause environmental pollution not only using solid acid as catalyst, but also there is no equipment corrosion the problem of, A kind of alkylation process technology of green can be considered as, there is good development prospect.

In order to be kept for certain reactivity period, solid acid alkylating process needs are grasped under the conditions of biggish alkane alkene ratio Make to avoid the too fast inactivation of solid acid catalyst, but alkane alkene is than the excessively high selectivity that will increase process energy consumption and influence reaction.It grinds Study carefully discovery, catalyst activity and material concentration gradually change with Flow of Goods and Materials direction in fixed bed reactors.Therefore, it can adopt With the multistage feeding formula reactor technology to match with solid acid alkylation processes, catalyst bed structure is rationally set and is being urged The Fresh olefin raw material consumed is supplemented between agent bed to maintain suitable material concentration, both can satisfy every section of catalyst bed Layer in alkane alkene alkane alkene ratio excessive in entire reactor can also be significantly reduced than demand, for effectively extend catalyst life, It reduces device operation energy consumption and improves solid acid alkylation processes Technical Economy and be of great significance.

CN 1123372C discloses a kind of fluid distribution-collection system, which includes for mixing, distributing or extract out Several distribution plates and several laths of fluid.The system has two chambers, and a chamber carries out the introducing of external fluid, another A chamber carries out the extraction of fluid in container.The equipment can be provided with relatively good fluid distribution effects, but supplement material and master Fluid entirety mixed effect is not good enough, and complicated chamber structure increases pressure drop when fluid passes through equipment.

CN 101056684B discloses a kind of mixing between solid grain sub-bed in multistage feeding formula fixed bed tower Device-distributor-collector device.The equipment includes the top bed for keeping solids, and allow fluid to flow down Through the mixer-distributor-collector device coboundary；The fluid being spaced apart under coboundary and with the coboundary Distributor；The above-mentioned fluid deflection plate being spaced one between the two and with the two；Through at least one channel of deflecting plates；Also Flow controller including being selected from perforated plate, silk screen, grid, porosu solid, honeycomb object and combinations thereof.The equipment is to sunken bed Fluid has a good distribution effects in layer tower, but supplements material and enter in tower and globality bias current easily occur and part is penetrated at a high speed Stream, will cause catalyst premature inactivation and excessively high energy loss than alkylation process device for high alkane alkene；And solid particle Support is difficult to engineering construction for alkylation process device with fluid mixed allocation part integration.

CN 201592090U discloses a kind of liquid collection mixed allocation device.If the characteristics of equipment is internal setting The maze member for strengthening fluid mixing is done, but pressure drop is higher, entirety easily occurs than alkylation process device for high alkane alkene Property bias current problem.

In conclusion existing fluid mixed allocation equipment is primarily present following problems in more bed fixed bed towers: (1) setting Standby middle supplement material mixed effect is poor, globality bias current and significant concentration distribution gradient easily occurs.(2) equipment inner structure is multiple Miscellaneous, its higher engineering construction of pressure drop is difficult.

Utility model content

Purpose of this disclosure is to provide a kind of supplement material predistribution device and fluid mixed allocation equipment, above equipment is mended Fill that evenly distributed material, good mixing effect, structure are simple and pressure drop is low.

To achieve the goals above, disclosure first aspect provides a kind of supplement material predistribution device, for being arranged in Between the solid particle bed of two-stage up and down of multistage feeding formula reactor, which includes entering for the supplement material with reactor The ring pipe of mouth connection, the ring pipe and the reactor are coaxially arranged, and the tube wall of the ring pipe is equipped with equally distributed Multiple spray orifices, for being mixed with the upper layer reaction mass obtained from upper level solid particle bed.

Optionally, 2 spray orifices are evenly distributed on the ring pipe, 2 spray orifices are located in the ring pipe Side.

Optionally, the aperture of the spray orifice tilts upwards, the folder of plane where the opening direction and ring pipe of the spray orifice Angle is 30 °~60 °.

Disclosure second aspect provides a kind of fluid mixed allocation equipment, for being arranged in multistage feeding formula reactor Between lower two-stage solid particle bed, which includes: fluid collection device, is obtained for collecting from upper level solid particle bed The upper layer reaction mass arrived；Supplement material described in disclosure first aspect pre-allocates device；And fluid mixer, setting On the inside of the ring pipe, and the entrance of the fluid mixer connects with the fluid collection device and the spray orifice respectively Logical, to accommodate the upper layer reaction mass and the supplement material, the outlet of the fluid mixer is for solid with next stage The connection of body particle layers.

Optionally, the fluid collection device includes the collection tower tray with ring pipe coaxial arrangement, the collection tower The edge of disk is used to be tightly connected with the inner wall of the multistage feeding formula reactor；The fluid mixer and the supplement Material predistribution device is respectively arranged on the collections tower tray, the outlet of the fluid mixer run through the collection tower tray with It is connected to the lower space for collecting tower tray.

Optionally, the fluid mixer includes the mixing drum with the collection tower tray coaxial arrangement, the mixing drum Top be equipped with closed cover, barrel be equipped with multiple throttle orifices, to form the entrance of the fluid mixer；The mixing drum Interior to be equipped with downspout, there are gap, bottom ends to pass through the collection tower tray with the closed cover on the top of the downspout, with shape At the outlet of the fluid mixer.

Optionally, for the throttle orifice axially through the barrel of the mixing drum, the side of the throttle orifice connects oriented cylinder The deflector of interior extension, to form the inside and outside variable section runner being connected between the deflector and the barrel of the mixing drum.

Optionally, the outer coaxial sleeve of the downspout is equipped with cylinder, the top of the cylinder and the fixed company of the closed cover It connects, bottom end and the collections column plate are there are gap, the top of the bottom end of the cylinder lower than the downspout, and cylinder feather edge It is formed jagged.

Optionally, the notch is multiple and along the equally circumferentially spaced of the cylinder.

Optionally, which includes the fluid redistribution device with the outlet of the fluid mixer；The stream Body redistribution device includes the predistribution plate being arranged radially along reactor, and the predistribution plate is arranged at intervals at the fluid mixing Below the outlet of device and the outlet is covered, first through hole is distributed on the predistribution plate.

Optionally, the fluid mixed allocation equipment further includes damping reallocation plate, between the damping reallocation plate is parallel Every being set to below the predistribution plate, the second through-hole is distributed on the damping reallocation plate.

The disclosure third aspect provides a kind of multistage feeding formula reactor, including multistage solid particle bed, adjacent two-stage The solid particle bed between be equipped with supplement material inlet, which includes supplement described in disclosure first aspect Fluid mixed allocation equipment described in material predistribution device or disclosure second aspect, the described supplement material predistribution device or The fluid mixed allocation equipment is set between two-stage solid particle bed up and down, and the ring pipe and the reactor are coaxial Setting, and the ring pipe is connected to the supplement material inlet.

Optionally, the bottom of the upper level solid particle bed above the fluid mixed allocation equipment is equipped with solid Particles supports component, the solid particle support member include supporting network and supporting beam, and the supporting network covers the upper level The bottom of solid particle bed；The supporting beam includes the multiple inverted T shaped units interconnected, and multiple inverted T shaped units uniformly divide It is distributed in below the supporting network and is fixedly connected with the shell of the multistage feeding formula reactor.

Through the above technical solutions, the supplement material predistribution device of the disclosure can significantly improve supplement material in bed The distributing homogeneity in section, the predistribution apparatus structure is simple, convenient for manufacture and installation.The fluid mixed allocation equipment of the disclosure Using a variety of reinforcing logistics mixing measures such as the predistribution of supplement material Variable Mass Flow and Sprial-flow suctions, mixing effect is significantly improved Rate can effectively eliminate bed section material composition concentration distribution gradient；It is pre-allocated and is damped using fluid and rectify uniformly distributed technology, stream Body is easier to evenly distribute on tower cross section, is conducive to eliminate or reduce granular bed layer fluid entrance end effect；It should Mixed allocation device structure is simply easy to engineering construction, and fluid is low by pressure drop.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is a kind of structural schematic diagram of specific embodiment of the fluid mixed allocation equipment of the disclosure.

Fig. 2 is a kind of top view of specific embodiment of the fluid mixed allocation equipment of the disclosure.

Description of symbols

1 shell, 2 upper level solid particle bed

3 supporting network, 4 fluid mixed allocation equipment

5 ring pipes 6 collect tower tray

7 predistribution plates 8 damp reallocation plate

9 next stage solid particle bed, 10 connecting tube

11 throttle orifice, 12 deflector

13 notch, 14 cylinder

15 downspout, 16 closed cover

17 mixing drum, 18 spray orifice

19 supporting beam, 20 second through-hole

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.

In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " typically refers to device and exists It is upper and lower under normal operating condition, specifically refer to the page of Fig. 1." inside and outside " be for device itself profile and Speech.

As shown in Figure 1, disclosure first aspect provides a kind of supplement material predistribution device, for being arranged in multistage feeding Between the solid particle bed of two-stage up and down of formula reactor, which includes being connected to for the supplement material inlet with reactor Ring pipe 5, ring pipe 5 and reactor are coaxially arranged, and the tube wall of the ring pipe 5 is equipped with equally distributed multiple spray orifices 18, with For being mixed with the upper layer reaction mass obtained from upper level solid particle bed 2.

The disclosure supplement material predistribution device can significantly improve supplement material bed section distributing homogeneity, The predistribution apparatus structure is simple, convenient for manufacture and installation.

According to the disclosure, upper level solid particle bed refers to two neighbouring with supplement material predistribution device admittedly It is located at the solid particle bed supplemented above material predistribution device, the i.e. bed in supplied materials direction in body particle layers, therewith phase Pair, the solid particle bed below supplement material predistribution device is denoted as next stage solid particle bed, that is, passes through benefit After filling material predistribution device distribution, material enters next stage solid particle bed.

According to the disclosure, what the structure of the spray orifice of ring pipe 5 can be conventional for this field, such as can be to be formed in annular Through-hole on 5 tube wall of pipe, or to be formed as setting and the nozzle on ring pipe 5.The number of spray orifice on ring pipe 5 is unlimited, It can be 2~16, preferably 8~14.In a kind of preferred embodiment of the disclosure, in order to improve supplement The distributing uniformity on tower section is flowed, 2 spray orifices 18 can be evenly distributed on ring pipe 5.The direction of spray orifice 18 is not special Limitation, as long as keeping the supplement material sprayed from spray orifice 18 mixed with the upper layer reaction mass from upper level solid particle bed Conjunction further mixes for the ease of supplement material with upper layer reaction mass, in a kind of specific embodiment of the disclosure In, 2 spray orifices 18 can be located at 5 inside of ring pipe.In other implementations, spray orifice 18 can be optionally disposed in ring pipe 5 top, bottom and outside.

Further, in order to be sufficiently mixed the supplement material of ring pipe 5 and upper layer reaction mass, in one kind of the disclosure In specific embodiment, the aperture of spray orifice 18 can tilt upwards, so that supplement material and upper layer reaction mass adverse current and/or mistake Stream contact, it is further preferred that the angle of the opening direction of spray orifice 18 and 5 place plane of ring pipe can be 30 °~60 °.

According to the disclosure, the size of ring pipe 5 and spray orifice 18 is not specially required, can be according to material, the requirement of reaction It is adjusted, such as the diameter of spray orifice 18 can be 5~10mm, to guarantee that supplement material muzzle velocity is suitable for, satisfaction reaction is wanted It asks.

In a kind of specific embodiment of the disclosure, the bottom of ring pipe 5 can be evenly distributed with 2~4 through-holes, so as to device Shut-down empties the material retained inside ring pipe 5 in time.

As shown in Figure 1, disclosure second aspect provides a kind of fluid mixed allocation equipment, for being arranged in multistage feeding formula Between the solid particle bed of two-stage up and down of reactor, which includes: fluid collection device, for collecting from upper level solid The upper layer reaction mass that particle layers 2 obtain；The supplement material of disclosure first aspect pre-allocates device；And fluid mixing dress It sets, 5 inside of ring pipe is set to, and the entrance of fluid mixer is connected to fluid collection device and spray orifice 18 respectively, to hold Receive upper layer reaction mass and supplement material, the outlet of fluid mixer with next stage solid particle bed 9 for being connected to.

The fluid mixed allocation equipment of the disclosure is a variety of strong using the predistribution of supplement material Variable Mass Flow and Sprial-flow suction etc. Compound stream mixing measure, significantly improves mixing efficiency, can effectively eliminate bed section material composition concentration distribution gradient；Using Fluid predistribution and damping rectify uniformly distributed technology, and fluid is easier to evenly distribute on tower cross section, are conducive to eliminate or reduce Granular bed layer fluid entrance end effect；The mixed allocation device structure is simply easy to engineering construction, and fluid passes through pressure drop It is low.

According to the disclosure, for the ease of collecting from the upper layer reaction mass under upper level granular bed laminar flow, in this public affairs In a kind of specific embodiment opened, fluid collection device may include the collection tower tray 6 being coaxially disposed with ring pipe 5, collect The edge of tower tray 6 can be used for being tightly connected with the inner wall of multistage feeding formula reactor, sufficiently to collect upper layer reaction mass；Stream Body mixing arrangement and supplement material predistribution device can be respectively arranged at and collect on tower tray 6, so as to the upper layer reaction being collected into Material further with supplement material mix, fluid mixer outlet can through collect tower tray 6 with collection tower tray 6 under Portion space connection, in order to mixed flow direction of material next stage solid particle bed.

According to the disclosure, fluid mixer can have the structure of this field routine, in order to further increase supplement The mixed effect of material and upper layer reaction mass, in a kind of specific embodiment of the disclosure, as shown in Figure 1, fluid mixing dress The mixing drum 17 that may include and collect the coaxial arrangement of tower tray 6 is set, upper layer reaction mass is directly entered mixed from top in order to prevent It closes cylinder 17, influence mixed effect, the top of mixing drum 17 can be equipped with closed cover 16；The barrel of mixing drum 17 can be equipped with more A throttle orifice 11, to form the entrance of fluid mixer, multiple throttle orifices are preferably uniformly distributed around barrel at equal intervals；Mixing drum Downspout 15 can be equipped in 17, the top of downspout 15, which can be passed through with closed cover 16 there are gap, bottom end, collects tower tray 6, to form the outlet of fluid mixer.In this specific embodiment, mixed material can be respectively from 17 side of mixing drum Enter inside mixing drum in multiple throttle orifices on the barrel of face, fluid flow is evenly distributed, good mixing effect.Implement in others In mode, fluid mixer may include the hybrid element such as maze member, spoiler.

Further, enter mixing drum 17 for the ease of supplement material and carry out hybrid reaction, the preferably spray orifice of ring pipe 5 18 can be located at the inside of ring pipe, with towards above-mentioned throttle orifice 11.

Both further, in a specific embodiment, the outer diameter of mixing drum 17 is less than the internal diameter of ring pipe 5, i.e., Between form gap, premixed in this gap with accommodating the supplement material that sprays from ring pipe 5 with upper layer reaction mass.

In order to further strengthen the mixed effect of mixing arrangement, in a kind of specific embodiment of the disclosure, such as Fig. 2 institute Show, throttle orifice 11 can connect leading for the interior extension of oriented cylinder axially through the barrel of mixing drum 17, the side of throttle orifice 11 Flowing plate 12, to form the inside and outside variable section runner being connected between deflector 12 and the barrel of mixing drum 17.In this embodiment In, after mixed flow body after throttle orifice enters mixing drum 17, by rotating the change formed between the deflector and cylinder that divergent shape is distributed Section runner is capable of forming Sprial-flow suction effect to cylinder center flow, is conducive to fluid baffling outside downspout, thus effectively strong The mixing of compound stream, and swabbing action is formed, so that fluid-mixing is discharged from downcomer bottom, improve mixing efficiency.At this In embodiment, one end that deflector 12 extends into cylinder can there are gap, the axis of deflector 12 with the tube wall of downspout 15 To highly preferred identical as throttle orifice 11, to improve water conservancy diversion mixed effect.Deflector 12 and radial angle can for 30 °~ 60 °, the size of variable section runner does not have particular/special requirement, such as variable cross-section stream equivalent diameter can be 50~600mm, preferably 80~200mm.

Further, in order to improve mixing efficiency, as depicted in figs. 1 and 2, cylinder can be equipped with coaxial sleeve outside downspout 15 14, the top of cylinder 14 can be fixedly connected with closed cover 16, bottom end can there are gap, the bottoms of cylinder 14 with column plate is collected End can be lower than the top of downspout 15.In this embodiment, fluid-mixing passes through the variable cross-section stream that deflector 12 is formed After road flows to mixing drum center, axial baffling can be carried out in the space outside central part downspout 15, subsequent fluid-mixing can To flow out from 15 outlet at bottom of downspout, the mode of this Radial Flow and axial flow combinations can further increase fluid rapids Traverse degree and mixing efficiency.Further, in order to promote fluid to mix, the feather edge of cylinder 14 could be formed with notch 13, lack The size of mouth 13 does not have particular/special requirement, such as the equivalent diameter of notch 13 can be 30~80mm.

Further, notch 13 can be multiple and along the equally circumferentially spaced of cylinder 14, to strengthen mixed effect.

In order to make fluid-mixing uniformly flow into next stage solid particle bed, in a kind of specific embodiment of the disclosure In, which may include the fluid redistribution device with the outlet of fluid mixer.Further, in order to improve again Distributing uniformity, in a kind of specific embodiment of the disclosure, fluid redistribution device may include radially setting along reactor The predistribution plate 7 set, predistribution plate 7 can be arranged at intervals at below the outlet of fluid mixer and cover going out for mixing arrangement Mouthful, first through hole can be distributed on plate 7 by pre-allocating.The size and percent opening of first through hole are not particularly limited, for example, first The aperture of through-hole can be 3~10mm, and percent opening is 3~10%.In this embodiment, from fluid mixer outlet stream It when fluid-mixing out flows through the predistribution plate 7, can sprawl radially, be conducive to eliminate or reduce fluid outlet effect It answers, avoids fluid concentration of local or bias current in reactor cross section.In other implementations, fluid redistribution device can be with Including distributor.

Further, in order to promote fluid-mixing evenly distributed in bed cross section, fluid mixed allocation equipment can be with Including damping reallocation plate 8, damping reallocation plate 8 can be set to 7 lower section of predistribution plate with parallel interval, damp reallocation plate 8 The second through-hole 20 can be distributed with above.In a kind of specific embodiment of the disclosure, the diameter of damping reallocation plate 8 can be big In predistribution plate 7, preferably damping reallocation plate 8 can be isometrical with solid particle bed.Damping reallocation plate 8 can be formed as Sieve plate or metallic sieve, the size and percent opening of the second through-hole 20 are not particularly limited, for example, the percent opening of the second through-hole 20 can Think 10~30%；Sieve plate opening diameter can be 2~8mm, and aperture layout can be equilateral triangle or square profile, layout Spacing can be 6~25mm.

The disclosure third aspect provides a kind of multistage feeding formula reactor, including multistage solid particle bed, adjacent two-stage Solid particle bed between be equipped with supplement material inlet, the reactor include disclosure first aspect supplement material predistribution The fluid mixed allocation equipment 4 of device or disclosure second aspect, supplement material predistribution device or fluid mixed allocation set Standby 4 are set between two-stage solid particle bed up and down, and ring pipe 5 and reactor are coaxially disposed, and ring pipe 5 and supplement material Entrance connection.

In order to keep solid particle bed stabilization, particle be prevented to be scattered, in a kind of specific embodiment of the disclosure, position The bottom of upper level solid particle bed 2 above fluid mixed allocation equipment 4 can be equipped with solid particle support member, Gu Body particles supports component may include supporting network 3 and supporting beam 19, and supporting network 3 can also cover the bottom of upper level solid particle bed Portion；Supporting beam 19 may include the multiple inverted T shaped units interconnected, and multiple inverted T shaped units may be uniformly distributed in supporting network 3 It lower section and is fixedly connected with the shell 1 of multistage feeding formula reactor.

Fluid mixing process in the fluid mixed allocation equipment and multistage feeding formula reactor of the disclosure may include: The upper layer reaction mass that upper level granular bed laminar flow gets off is flow to after solid particle support member collects tower tray 6, Gu Between body particle layers supplement material by connecting tube 10 enter ring pipe 5 pre-allocate, supplement material from spray orifice 18 ejection after with receipts The upper layer reaction mass of collection tower tray 6 is tentatively mixed, and fluid-mixing enters variable cross-section square by the throttle orifice 11 of mixing drum 17 Shape runner generates eddy flow mixing, is then drawn into cylinder 14 and 15 region of downspout and carries out baffling and further mixes, and from drop The bottom opening of liquid pipe 15, which is sprayed to fluid beneath predistribution plate 7, to be pre-allocated, and subsequent fluid-mixing is reallocated through overdamp Plate 8 is evenly distributed after being rectified to next stage solid particle bed.

The structure and performance of the fluid mixed allocation equipment provided below by embodiment and comparative example to the disclosure give Further instruction, but therefore the disclosure is not any way limited.

Experimental rig is by diameter 1000mm, high 5000mm organic glass tower, fluid delivery pump, measuring instrument, pressure controlling Valve, differential pressure gauge, fluid distrbution instrument composition；Fluid dispensing apparatus is installed, above and below fluid mixed allocation equipment in the middle part of organic glass tower Swim filling solid particle layers；Organic glass tower is controlled by fluid delivery pump, measuring instrument and pressure controlling during test Fluid flow detects fluid dispensing apparatus pressure drop by differential pressure gauge；Tracer is injected in fluid dispensing apparatus upstream, passes through fluid point Cloth instrument acquires multiple measuring point tracer concentration distribution field information below fluid dispensing apparatus.

Whole inhomogeneities (standard deviation) can be used in the fluid distribution of multiple test points or mixing uniformity on tower section It indicates.Standard deviation definition:

N is test point quantity on tower section, S_iFor the tracer throughput (in the unit time) of any test point,For institute There is the tracer of test point to be averaged throughput.

When standard deviation is less than 0.10, shows the fluid distribution of multiple points on same tower section or mixing uniformity is It is excellent, and numerical value is smaller more uniform；When standard deviation is less than 0.15, show multiple points on same tower section fluid distribution or Mixing uniformity is good；When standard deviation is less than 0.25, show that the fluid distribution of multiple points on same tower section or mixing are equal Even property is qualification；When standard deviation is greater than 0.25, show fluid distribution or the mixing uniformity of multiple points on same tower section It is unqualified；And the bigger numerical value the more uneven.

Embodiment

This implementation illustrates the mixed allocation performance and pressure drop performance of the fluid mixed allocation equipment of disclosure offer for example.

The present embodiment uses Fig. 1 and fluid mixed allocation equipment shown in Fig. 2.Solid particle support member includes supporting network 3 and T-type supporting beam 19, supporting network 3 is the metallic sieve of percent opening 30%, 5 two sides of ring pipe open diameter 7mm circle spray orifice 18 and Outlet material direction and fluid flow direction angle are 45 °；6 groups of rectangle throttle orifices 11 and deflector 12, square is arranged in mixing drum 17 11 equivalent diameter of shape throttle orifice is 80~200mm, by the equivalent diameter for the variable cross-section rectangular channel that deflector 12 and cylinder are formed For 160mm；15 diameter of downspout is 350mm, and downspout 15 and 14 gap of upper part cylinder are 80mm, downspout top cylinder 14 Diameter is 430mm, and 14 bottom of cylinder is evenly distributed with the strip v notch v 13 that equivalent diameter is 36mm；It is formed on fluid predistribution portion plate 7 Having bore dia is the first through hole of 5mm, and percent opening is 3~10%；Fluid damping reallocation plate 8 is that uniformly distributed diameter is 5mm The sieve plate of two through-holes 20, percent opening are 10~30%, and aperture layout is equilateral triangle.

The fluid dispensing apparatus of the present embodiment is mounted in experimental rig and has carried out mixing point under different operation load It is tested with performance and pressure drop performance, test result is shown in Table 1 and table 2.

Comparative example

This comparative example is used to illustrate the mixed allocation performance and pressure drop of the fluid mixed allocation equipment different from the disclosure Energy.

Using mixer-distributor-collector in multistage feeding formula fixed bed tower disclosed in CN101056684B Equipment.The equipment includes solid retaining screen, fluid deflector device, channel, surge chamber, adapter tube, splash-back, fluid distributor and stream Amount controller；Using fan-shaped segment partition scheme.The fluid for flowing through upstream solid particle bed enters equipment by solid retaining screen, Under the collection of fluid deflector device, equipment lower space is entered by channel, changes flow direction under the blocking of splash-back, is passed through It crosses after fluid distributor is allocated and downstream solid particle layers is entered by flow controller.

The mixed allocation performance and pressure drop performance test method embodiment of comparative example, test result are shown in Table 1 and table 2.

The distribution of 1 fluid of table and mixed performance evaluation result

2 pressure drop performance evaluation result of table

Operational load, %	70	80	100	110
					Pressure drop, kPa (embodiment)	5.36	6.75	8.26	10.93
Pressure drop, kPa (comparative example)	6.94	8.56	13.12	15.92

By test result it is found that the fluid mixed allocation equipment that the disclosure provides integrally mixes and allocation performance is excellent, tool There is more uniform fluid distribution energy, and pressure drop has also obtained effective control.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims (13)

1. a kind of supplement material pre-allocates device, for being arranged in the solid particle bed of two-stage up and down of multistage feeding formula reactor Between, which is characterized in that the device includes the ring pipe (5) being connected to for the supplement material inlet with reactor, the annular Manage (5) and the reactor be coaxially arranged, and the tube wall of the ring pipe (5) is equipped with equally distributed multiple spray orifices (18), with The upper layer reaction mass mixing that Yu Yucong upper level solid particle bed (2) obtains.

2. supplement material according to claim 1 pre-allocates device, which is characterized in that uniformly divide on the ring pipe (5) 2 spray orifices (18) are furnished with, 2 spray orifices (18) are located on the inside of the ring pipe (5).

3. supplement material according to claim 1 pre-allocates device, which is characterized in that the aperture of the spray orifice (18) is upward Inclination, the angle of plane is 30 °~60 ° where the opening direction of the spray orifice (18) and ring pipe (5).

4. a kind of fluid mixed allocation equipment, for be arranged in multistage feeding formula reactor the solid particle of two-stage up and down bed it Between, which is characterized in that the equipment includes:

Fluid collection device, for collecting the upper layer reaction mass obtained from upper level solid particle bed (2)；

Supplement material described in any one of claims 1 to 3 pre-allocates device；And

Fluid mixer is set on the inside of the ring pipe (5), and the entrance of the fluid mixer respectively with the stream Body collection device is connected to the spray orifice (18), and to accommodate the upper layer reaction mass and the supplement material, the fluid is mixed The outlet set is attached together for being connected to next stage solid particle bed (9).

5. fluid mixed allocation equipment according to claim 4, which is characterized in that the fluid collection device includes and institute The collection tower tray (6) of ring pipe (5) coaxial arrangement is stated, the edge for collecting tower tray (6) is used for anti-with the multistage feeding formula The inner wall of device is answered to be tightly connected；The fluid mixer and supplement material predistribution device are respectively arranged at the collection On tower tray (6), the outlet of the fluid mixer is through collection tower tray (6) with the lower part with collection tower tray (6) Space connection.

6. fluid mixed allocation equipment according to claim 5, which is characterized in that the fluid mixer includes and institute The mixing drum (17) for collecting tower tray (6) coaxial arrangement is stated, the top of the mixing drum (17) is equipped with closed cover (16), barrel is set There are multiple throttle orifices (11), to form the entrance of the fluid mixer；

Downspout (15) are equipped in the mixing drum (17), the top and the closed cover (16) of the downspout (15) there are Gap, bottom end pass through the collection tower tray (6), to form the outlet of the fluid mixer.

7. fluid mixed allocation equipment according to claim 6, which is characterized in that the throttle orifice (11) is axially through institute The barrel of mixing drum (17) is stated, the side of the throttle orifice (11) connects the deflector (12) extended in oriented cylinder, described The inside and outside variable section runner being connected to is formed between deflector (12) and the barrel of the mixing drum (17).

8. fluid mixed allocation equipment according to claim 6, which is characterized in that the downspout (15) is coaxially arranged outside Have cylinder (14), the top of the cylinder (14) is fixedly connected with the closed cover (16), bottom end is stayed with the collection tower tray Have a gap, the bottom end of the cylinder (14) is lower than the top of the downspout (15), and cylinder (14) feather edge formed it is jagged (13)。

9. fluid mixed allocation equipment according to claim 8, which is characterized in that the notch (13) is multiple and along institute State the equally circumferentially spaced of cylinder (14).

10. fluid mixed allocation equipment according to claim 4, which is characterized in that the equipment includes mixed with the fluid Attach together the fluid redistribution device for the outlet set；The fluid redistribution device includes pre- point be arranged radially along reactor Matching board (7), predistribution plate (7) are arranged at intervals at below the outlet of the fluid mixer and cover the outlet, institute It states and first through hole is distributed in predistribution plate (7).

11. fluid mixed allocation equipment according to claim 10, which is characterized in that the fluid mixed allocation equipment is also Including damping reallocation plate (8), damping reallocation plate (8) parallel interval is set to below the predistribution plate (7), described The second through-hole (20) are distributed in damping reallocation plate (8).

12. a kind of multistage feeding formula reactor, including multistage solid particle bed, the solid particle bed of adjacent two-stage it Between be equipped with supplement material inlet, which is characterized in that the reactor includes supplement described in any one of claims 1 to 3 Fluid mixed allocation equipment (4) described in material predistribution any one of device or claim 4~11, the supplement material Predistribution device or the fluid mixed allocation equipment (4) are set between two-stage solid particle bed up and down, the ring pipe (5) it is coaxially disposed with the reactor, and the ring pipe (5) is connected to the supplement material inlet.

13. multistage feeding formula reactor according to claim 12, which is characterized in that set positioned at the fluid mixed allocation The bottom of upper level solid particle bed (2) above standby (4) is equipped with solid particle support member, the solid particle support portion Part includes supporting network (3) and supporting beam (19), and the supporting network (3) covers the bottom of the upper level solid particle bed；Institute Stating supporting beam (19) includes the multiple inverted T shaped units interconnected, and multiple inverted T shaped units are uniformly distributed in the supporting network (3) It lower section and is fixedly connected with the shell (1) of the multistage feeding formula reactor.