NL1004621C2 - Distribution of fluids into industrial reaction vessel - Google Patents

Distribution of fluids into industrial reaction vessel Download PDF

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Publication number
NL1004621C2
NL1004621C2 NL1004621A NL1004621A NL1004621C2 NL 1004621 C2 NL1004621 C2 NL 1004621C2 NL 1004621 A NL1004621 A NL 1004621A NL 1004621 A NL1004621 A NL 1004621A NL 1004621 C2 NL1004621 C2 NL 1004621C2
Authority
NL
Netherlands
Prior art keywords
liquid
floating
inlet
manifold
head
Prior art date
Application number
NL1004621A
Other languages
Dutch (nl)
Inventor
Hsin Shao
Mao-Sung Lee
Chi-Chung Liao
Heuy-Song You
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to NL1004621A priority Critical patent/NL1004621C2/en
Priority to NL1004621 priority
Application granted granted Critical
Publication of NL1004621C2 publication Critical patent/NL1004621C2/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1818Feeding of the fluidising gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14Fractional distillation or use of a fractionation or rectification column
    • B01D3/16Fractionating columns in which vapour bubbles through liquid
    • B01D3/18Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
    • B01D3/20Bubble caps; Risers for vapour; Discharge pipes for liquid
    • B01D3/205Bubble caps

Abstract

A fluid distributor consists of a distribution body with an attached fluid supply and a separating wall with a number of mounted outlets (4). Each outlet is attached to the fluid supply and is capped (42) at the outlet end. A separate part (43) is suspended in the outlet opening to allow fluid to pass or to seal the outlet when no fluid is delivered.

Description

Liquid distributor

Field of the invention

The present invention relates to a liquid distributor. The liquid distributor is intended not only to uniformly distribute the liquid, but also to prevent solids present in the liquid from clumping and flowing back into the reactor pipe.

Description of the Related Art 10

It is known to uniformly distribute the liquid concentration using a number of inlets of a pipe (or pipes) when introducing liquid into a reactor. With reference to Figures 1 and 2, Figure 1 shows an orientation with a number of manifolds connected to the main pipe of the reactor, and Figure 2 shows another direction with a number of inlet pipes placed directly in the reactor. Such devices are the normal approach for distributing liquid at a uniform concentration in the reactor. However, the above devices have two major problems: first, the liquid flow rate from the manifolds (or inlet pipes) is seldom sufficient so that the degree of distribution fails to achieve an ideal situation. Second, when no liquid is supplied to the reactor, liquid present in the reactor may flow back to the pipe and the solids contained in the liquid will gradually settle on the pipe wall and then plug it. Devices intended to prevent solids from clogging pipes are disclosed in US Pat. No. 3,869,381 and European Patent No. 009045.

1004621 2

Summary of the invention

The object of the present invention is to provide a liquid distributor that can overcome the above problems. The liquid manifold consists of the following: a manifold body, a liquid flow supply line mounted on said manifold body, a partition wall mounted in said manifold body and a plurality of outflow units mounted on said manifold wall, each outflow unit comprising an inlet conduit with a first end communicating with said liquid flow supply line and having a second end with a plurality of openings formed thereon near the second end of said inlet line, a head member mounted on said inlet line at said second end forming a liquid channel with said openings, as well as a floating head with a closed head for closing said inlet conduit movably received at said second end in said supply conduit near the second end, so that when liquid flow into the second inlet conduit inserted from said first end, the closure head of said floating body is displaced to form an exhaust channel communicating with said fluid channel and when fluid insertion is stopped the outlet channel is closed by said closure head of said floating body. That is, when liquid passes through the supply line 3 and into the inlet line 41, the upwardly moving liquid through the flow inertia lifts the floating element 43 which has a greater density than the liquid and is indicated by the number, equally spaced located, openings 411 circumferentially of the second end of the inlet conduit 41 and then flows down through the channel 5 and distributes 35 with a uniform radial spreading on the partition 2. When the liquid flow stops, the floating head closure 431 closes element 43 automatically deflects inlet pipe 41 under the influence of gravity and prevents liquid from flowing back into the inlet pipe.

Brief description of the drawings 5

Other objects, features and advantages of the present invention will become apparent from the following detailed description of the non-limiting preferred embodiment. The description will be made with reference to the accompanying drawings in which: Figure 1 is a schematic view of a supply pipeline fitted with multiple manifold outlets from a conventional reactor, Figure 2 is a schematic view of a number of pipes from another conventional reactor Figure 3 is a perspective view of the outflow units installed on the reactor bulkhead in accordance with the present invention, Figure 4 is a front view of the outflow units 20 with respect to the liquid flow indicated by the pillar of Figure 3, FIG. 5 is a longitudinal cross-sectional front view of an outflow unit 4 according to the present invention, FIG. 6 is a sectional view along line AA of FIG. 5, FIG. 7 shows a schematic view of the floating element 43 which is liquid lifted and from the path of the fluid indicated by pi jelen 10 and 11 in accordance with the channel 4 and figure 8 shows a schematic view of the outlet channel 5 closed by the closing head 431 of the floating element 4 when the liquid flow is stopped. 1 1004621 4

Description of the preferred embodiment

Referring simultaneously to Figures 3 and 4, reference numerals 4,4, ... denote the outflow units 5 mounted on the dividing wall 2 which divides the space into two chambers C1 and C2 within the distributor body 1. Liquid is passed through the supply line 3 and injected into the first chamber C1. Movement of the liquid is indicated in the direction of the arrows 10. When the first chamber C1 is full, the liquid passes through each outflow unit 4 in an irreversible path and then distributes uniformly in the second chamber C2.

Figure 5 shows a front view in longitudinal section of a single outflow unit 4. The outflow units 4,4, ...

15 are mounted evenly distributed on the dividing wall 2, each outflow unit 4 comprising an inlet conduit having a first end communicating with the liquid flow supply conduit 3 and a second end having a plurality of openings 411 formed therein near the second end of the inlet conduit 41, a header 42 mounted on the inlet conduit 41 at the second end forming a fluid channel 5 with the openings 411 and a floating element 43 with a closure head 431 for closing the inlet conduit 41 at the second end, movably received in the inlet conduit 3 near the second end, wherein when liquid flow is introduced at the first end into the inlet conduit 41, the closure head 431 of the floating element 43 is displaced to form an outlet duct which is communicates with the liquid channel 5 and when the liquid introduction is stopped it outlet channel is closed by the closing head 431 of the floating element 43. This means that when liquid passes through the supply pipe 3 and enters the inlet pipe 41, the liquid moving upwards as a result of the liquid mass has the floating element 43, which has a density which is larger than the liquid, lifts and passes through the equally spaced openings 1004621 5 411 at the circumference of the second end of the inlet conduit 41, and then the liquid flows down through the channel 5 and flows spreads uniform radial distribution over the partition 2. When the liquid flow 5 is stopped, the closing head 431 of the floating element 43 automatically closes the inlet pipe 41 due to gravity and prevents liquid from flowing back into the inlet pipe 41.

Figure 6 shows a cross-sectional view along line A-A of Figure 5. The figure shows openings 411 with a symmetrical placement on the outer peripheral surface of the second end of the inlet conduit 41.

When fluid, indicated by arrows 10, is led from the first chamber C1 to the inlet conduit 41, as shown in Figure 7, the floating element 43 is pushed away and lifted by the mass of the upwardly flowing fluid stream. An outlet channel is thus formed and connected to the fluid channel 5 so that the fluid flows through the fluid channel 5 and into the second chamber C2 in the direction of arrows 10 and 11. The fluid is consequently distributed evenly through the plural to openings 411 and the solid in the liquid is easily dispersed through the outflow units.

When the liquid flow is stopped, the floating element 43 automatically falls down and the outflow channel is closed by the closing head 431 of the floating element 43, as shown in figure 8. Liquid in the second chamber C2 cannot flow back to the first chamber C1 .

Although the present invention has been described in connection with what is currently considered the most practical preferred embodiment, it is to be understood that the invention is not limited to the embodiments shown, but rather is intended to cover various modifications and equivalent arrangements which are understood within the scope and essence of the appended claims.

1004621

Claims (4)

  1. A liquid manifold comprising: 5 a manifold body, a liquid flow supply line mounted on said manifold body, a partition wall mounted in said manifold body and 10 a number of outflow units mounted on said partition wall, each outflow unit comprising an inlet line having a first end communicating with said liquid flow supply line and a second end having a plurality of openings formed thereon near the second end of said inlet line, a head member mounted on said inlet line at said second end forming a liquid channel with said openings, and a floating body having a closed head for sealing said inlet conduit at said second end movably received in said supply conduit near the second end so that when a liquid flow is introduced into the second inlet conduit From the said first end, the closure head of said floating body 25 is displaced to form an outlet channel communicating with said fluid channel and when the liquid insertion is stopped the outlet channel is closed by said closure head of said floating body.
  2. Liquid distributor according to claim 1, wherein said openings are arranged symmetrically on the circumference of said second end of said inlet conduit of said outflow units.
  3. Liquid distributor according to claim 1, wherein the density of said floating body is greater than that of the liquid. 1004621
  4. A liquid distributor according to claim 1, wherein said liquid distributor body is formed in two chambers by said dividing wall in said reactor and wherein said outflow units are arranged upwardly in said dividing wall. 1004621
NL1004621A 1996-11-27 1996-11-27 Distribution of fluids into industrial reaction vessel NL1004621C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL1004621A NL1004621C2 (en) 1996-11-27 1996-11-27 Distribution of fluids into industrial reaction vessel
NL1004621 1996-11-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1004621A NL1004621C2 (en) 1996-11-27 1996-11-27 Distribution of fluids into industrial reaction vessel

Publications (1)

Publication Number Publication Date
NL1004621C2 true NL1004621C2 (en) 1998-05-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
NL1004621A NL1004621C2 (en) 1996-11-27 1996-11-27 Distribution of fluids into industrial reaction vessel

Country Status (1)

Country Link
NL (1) NL1004621C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2881169A1 (en) * 2013-12-04 2015-06-10 Basf Se Gas distributor nozzle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198782A1 (en) * 1972-09-11 1974-04-05 Ceskoslovenska Akademie Ved
GB2148141A (en) * 1983-10-14 1985-05-30 Hydrocarbon Research Inc Staged flow distribution grid assembly for ebullated bed reactor
JPS63252540A (en) * 1987-04-09 1988-10-19 Res Assoc Petroleum Alternat Dev<Rapad> Three-phase fluidized reaction apparatus
US5286188A (en) * 1992-09-11 1994-02-15 Foster Wheeler Energy Corporation Uni-directional anti-backsifting fluidization nozzle and a fluidized bed system utilizing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198782A1 (en) * 1972-09-11 1974-04-05 Ceskoslovenska Akademie Ved
GB2148141A (en) * 1983-10-14 1985-05-30 Hydrocarbon Research Inc Staged flow distribution grid assembly for ebullated bed reactor
JPS63252540A (en) * 1987-04-09 1988-10-19 Res Assoc Petroleum Alternat Dev<Rapad> Three-phase fluidized reaction apparatus
US5286188A (en) * 1992-09-11 1994-02-15 Foster Wheeler Energy Corporation Uni-directional anti-backsifting fluidization nozzle and a fluidized bed system utilizing same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8848, Derwent World Patents Index; Class J04, AN 88-341263 *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 61 (C - 567) 10 February 1989 (1989-02-10) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2881169A1 (en) * 2013-12-04 2015-06-10 Basf Se Gas distributor nozzle
WO2015082506A1 (en) * 2013-12-04 2015-06-11 Basf Se Gas distribution nozzle
CN105960278A (en) * 2013-12-04 2016-09-21 巴斯夫欧洲公司 Gas distribution nozzle
US9993792B2 (en) 2013-12-04 2018-06-12 Basf Se Gas distribution nozzle
CN105960278B (en) * 2013-12-04 2019-05-21 巴斯夫欧洲公司 Gas distributor nozzle

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Effective date: 20050601