CN109654924A - Particle walks the vertical fluidized bed heat exchanger of shell side - Google Patents
Particle walks the vertical fluidized bed heat exchanger of shell side Download PDFInfo
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- CN109654924A CN109654924A CN201710946322.9A CN201710946322A CN109654924A CN 109654924 A CN109654924 A CN 109654924A CN 201710946322 A CN201710946322 A CN 201710946322A CN 109654924 A CN109654924 A CN 109654924A
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- heat exchanger
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- shell side
- shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D13/00—Heat-exchange apparatus using a fluidised bed
Abstract
The technical issues of the present invention relates to the vertical fluidized bed heat exchangers that a kind of particle walks shell side, mainly solve heat exchanger shell pass blocking.The present invention includes feed opening 1, feed pot 2, vertical heat exchanger 3, inlet tube 4, ring weir 5, blender 6, wake turbulence section 7, band outlet 8, liquid-solid separator 9, particle flushed channel 10, strainer 11, impurity recovery port 12, down-comer 13, nozzle 14, spray tube 15, liquid phase groove 16, pump 17 by using one kind, particle walks 3 shell side of vertical heat exchanger, enters particle flushed channel 10 after liquid-solid separator 9 from band outlet 8 and enters back into the circulation of down-comer 13；Impurity is recycled from impurity recovery port 12；Liquid phase enters the technical solution that liquid phase groove 16 recycles after coming out from liquid-solid separator 9 and preferably solves above-mentioned technical problem, can be used for the anti-scale removal of vertical shell-and-tube heat exchanger shell side.
Description
Technical field
The invention belongs to chemical fields, specifically, belonging to chemical industry heat exchange equipment long-term operation field, are related to a kind of particle
The vertical fluidized bed heat exchanger for walking shell side, is widely used in the anti-scale removal of vertical shell-and-tube heat exchanger shell side.
Background technique
Heat exchanger is widely used in industries such as petroleum, chemical industry, the energy.However as using the time to increase, in heat exchanger
Inevitable there are dirt adhesions, and so as to cause the reduction of heat exchanger heat exchange efficiency, resistance increases, influences heat exchanger and normally transport
Row.
Fluid-bed heat exchanger by introducing inert solid particle, using particle fluidisation and wash away, play timely anti-scale removal
With the effect of augmentation of heat transfer.Fluid-bed heat exchanger can be improved heat exchanger heat transfer effect, effectively prolong to replace traditional heat exchangers
Growth device runing time.
Document US005676201A discloses a kind of external circulation fluidized bed heat exchanger.Document CN102840578A discloses one
The compact parallel connection type built-in fluid bed heat exchanger of kind.Above-mentioned fluid-bed heat exchanger is the fluid-bed heat exchanger that particle walks tube side.It changes
Hot device shell side equally exists different degrees of scale problems, develops the fluid-bed heat exchanger that a kind of particle walks shell side, heat exchanging device shell
The anti-scale removal of Cheng Jinhang is very necessary.
The present invention provides the vertical fluidized bed heat exchanger that a kind of particle walks shell side.The fluid-bed heat exchanger is by introducing particle
It walks 3 shell side of vertical heat exchanger and carries out the anti-scale removal of shell side, pass through the components realizations such as inlet tube 4, ring weir 5, blender 6, band outlet 8
Grain walks 3 shell of vertical heat exchanger from bottom to top, targetedly solves the above problem.
Summary of the invention
The problem of fouling easy the technical problem to be solved by the present invention is to vertical shell-and-tube heat exchanger shell side in the prior art,
The vertical fluidized bed heat exchanger that a kind of particle walks shell side is provided.The fluid-bed heat exchanger walks vertical heat exchanger 3 by introducing particle
Shell side carries out the anti-scale removal of shell side, realizes that particle is walked from bottom to top by components such as inlet tube 4, ring weir 5, blender 6, band outlets 8
3 shell of vertical heat exchanger has easy to operate, the strong advantage of shell side scale removal ability.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows: a kind of particle walks the vertical stream of shell side
Heat exchanger of fluidized bed, the fluid-bed heat exchanger by feed opening 1, feed pot 2, vertical heat exchanger 3, inlet tube 4, ring weir 5, blender 6,
Wake turbulence section 7, band outlet 8, liquid-solid separator 9, particle flushed channel 10, strainer 11, impurity recovery port 12, down-comer 13, nozzle 14,
Horizontal tube 15, liquid phase groove 16,17 composition of pump；Wherein 3 shell-side outlet of vertical heat exchanger passes through 8 connection liquid-solid separator 9 of band outlet,
Liquid-solid separator 9 separates two-way, connects liquid phase groove 16 all the way, and liquid phase recycles after pump 17, and another way connects particle flushed channel 10,
Impurity is discharged from impurity recovery port 12, and particle enters horizontal tube 15, the feed pot with feed opening 1 through down-comer 13 and nozzle 14
2 access horizontal tubes 15, particle enter 3 shell side of vertical heat exchanger through inlet tube 4 and complete circulation.
In above-mentioned technical proposal, vertical heat exchanger 3 is vertical shell-and-tube heat exchanger, and particle walks vertical heat exchanger from bottom to top
Wake turbulence section 7 is arranged in 3 shell sides, 3 cylinder lower part of vertical heat exchanger, and ring weir 5 and blender 6 are mounted in wake turbulence section 7, and wake turbulence section 7 is high
Spend 15~30mm.
In above-mentioned technical proposal, ring weir 5 is interior low outer high annular, 5 inner ring height of ring weir and 3 lower tube box of vertical heat exchanger
Wall is concordant, and inner ring diameter is 0.7~0.9 times, 5 outer ring height 5mm~10mm of ring weir of 3 barrel dliameter of vertical heat exchanger, race diameter
With 3 barrel dliameter of vertical heat exchanger.
In above-mentioned technical proposal, blender 6 is 3~5 sheet screw blades, leaf long 6~8mm, 100~500r/m of revolving speed.
In above-mentioned technical proposal, inlet tube 4 is mounted on 3 shell side entrance of vertical heat exchanger, is higher than wake turbulence section 7, import type
Formula is L-type or V-type, and 4 ejiction opening of inlet tube is angle, with level at 45~60 ° of angles.
In above-mentioned technical proposal, band outlet 8 is necking, is mounted at 3 shell-side outlet of vertical heat exchanger, 8 big mouths of band outlet
Diameter and osculum diameter ratio are 1.5~3, and big mouth diameter is greater than 3 shell-side outlet diameter of vertical heat exchanger, and osculum diameter is less than vertical
3 shell-side outlet diameter of formula heat exchanger.
In above-mentioned technical proposal, the strainer 11 that setting is horizontally mounted in particle flushed channel 10,11 average pore size 0.5 of strainer~
1.5mm, the outlet of particle flushed channel 10 are higher than strainer 11.
In order to solve the above technical problems, this method uses using a kind of method of vertical shell-and-tube heat exchanger shell side scale removal
Any one of the above particle walks the vertical fluidized bed heat exchanger of shell side.
In the above method, feed pot 2 is added from feed opening 1 in particle, is entered under the promotion of 15 liquid phase of horizontal tube through inlet tube 4
3 shell side of vertical heat exchanger, is washed away using particle, causes 3 shell side fouling of vertical heat exchanger to be stripped, dirty layer, particle and liquid phase one
Rise from the band outlet 8 of 3 shell-side outlet of vertical heat exchanger and enter liquid-solid separator 9, in liquid-solid separator 9 liquid phase and dirty layer,
Grain separation, liquid phase enters liquid phase groove 16, completes to recycle by pump 17, and the particle of band dirt layer enters particle flushed channel 10, dirty layer from
Impurity recovery port 12 is discharged, and particle enters down-comer 13, completes to recycle through nozzle 14.
In above-mentioned technical proposal and technical method, particle be heap density be greater than density of liquid phase, and not with use occasion system
The inert solid particle that interior medium reacts, mean particle size 2mm~5mm, 5~20kg of additional amount.
In above-mentioned technical proposal and technical method, liquid phase viscosity range is 0.001PaS~0.01PaS, flow velocity 1m/s
~4m/s.
In technical solution of the present invention and method, the present invention is investigated taking human as the method for applying dirty layer in heat exchanger shell pass
The particle walks the vertical fluidized bed heat exchanger scale removal ability of shell side, using dirty layer removal efficiency as the judgment criteria of scale removal ability.
The calculation method of dirty layer removal efficiency are as follows: dirty layer gross weight × 100% is applied in dirty layer removal efficiency=recycling dirt layer weight/shell side.
Using technical solution of the present invention, by using one kind by feed opening 1, feed pot 2, vertical heat exchanger 3, inlet tube
4, ring weir 5, blender 6, wake turbulence section 7, band outlet 8, liquid-solid separator 9, particle flushed channel 10, strainer 11, impurity recovery port 12,
The vertical fluidized bed heat exchanger that the particle that down-comer 13, nozzle 14, horizontal tube 15, liquid phase groove 16, pump 17 form walks shell side obtains
The preferable technical effect of dirty layer removal efficiency 95%.
Detailed description of the invention
Fig. 1 is the vertical fluidized bed heat exchanger flow diagram that particle of the present invention walks shell side.
Fig. 2 is ring weir of the present invention schematic diagram.
In Fig. 1,1 it is feed opening, 2 is feed pot, 3 is vertical heat exchanger, 4 is inlet tube, 5 is ring weir, 6 is blender, 7
It is band outlet for wake turbulence section, 8,9 be liquid-solid separator, 10 be particle flushed channel, 11 be strainer, 12 be impurity recovery port, 13 is
Down-comer, 14 be nozzle, 15 be horizontal tube, 16 be liquid phase groove, 17 be pump.
3 shell-side outlet of vertical heat exchanger passes through 8 connection liquid-solid separators 9 of band outlet, and liquid-solid separator 9 separates two-way, and one
Road connects liquid phase groove 16, and the outlet of liquid phase groove 16 connects particle flushed channel 10 through 17 access horizontal tube 15 of pump, another way, and particle rinses
Slot 10 connects down-comer 13, and down-comer 13 accesses horizontal tube 15 by nozzle 14, and the feed pot 2 with feed opening 1 accesses level
Pipe 15, inlet tube 4 are mounted on 3 shell import of vertical heat exchanger, and band outlet 8 is mounted on the outlet of 3 shell of vertical heat exchanger, wake turbulence section
7 are located at 3 lower end of vertical heat exchanger, and ring weir 5 and blender 6 are mounted in wake turbulence section 7.
Below by embodiment and comparative example, the present invention is further elaborated, but method of the invention is not limited in
This.
Specific embodiment
Below with reference to embodiment, method of the invention is further illustrated.
[embodiment 1]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, and wake turbulence section is arranged in vertical heat exchanger cylinder lower part, and ring weir and blender are mounted in wake turbulence section,
Wake turbulence section height 15mm, particle walk shell side from bottom to top, and shell side inner wall uniformly smears grey matter dirt layer 600g.Ring weir inner ring diameter is
0.7 times of heat exchanger barrel dliameter, the outer ring Huan Yan height 5mm.Blender is 3 sheet screw blades, leaf long 6mm, revolving speed 100r/m.Into
Mouth pipe is L-type, is mounted on heat exchanger shell import, inlet tube ejiction opening is at an angle of 45 degrees to the horizontal plane.Band outlet is mounted on heat exchanger shell
Layer outlet, big mouth and osculum diameter ratio are 1.5, horizontal strainer average pore size 0.5mm in particle flushed channel.Particle is using average grain
The zirconium silicate of diameter 2mm, additional amount 5kg.Liquid phase viscosity 0.001PaS, flow velocity 1m/s.Under this condition, dirty layer removal efficiency 86%.
[embodiment 2~16]
Using the vertical fluidized bed heat exchanger for walking shell side with the identical particle of embodiment 1, using identical vertical with embodiment 1
The method of formula shell-and-tube heat exchanger shell side scale removal carries out experiment investigation, and vertical heat exchanger cylinder lower part is arranged wake turbulence section, ring weir and
Blender is mounted in wake turbulence section, and particle walks shell side from bottom to top, and shell side inner wall uniformly smears grey matter dirt layer 600g.Inlet tube peace
Mounted in heat exchanger shell import, band outlet is mounted on the outlet of heat exchanger shell, is horizontally mounted strainer in particle flushed channel.Change is stirred
Flowing Duan Gaodu, (high 1), ring weir inner ring diameter account for the ratio (than 1) of heat exchanger barrel dliameter, the outer ring Huan Yan height (high 2), blender spiral
Blade quantity (number of sheets), blender leaf long (leaf is long), agitator speed (revolving speed), inlet tube type (type), inlet tube spray
Mouthful with level angle (angle), band export big mouth and osculum diameter ratio (ratio 2), strainer average pore size (aperture), grain type (
Grain), grain diameter (partial size), particle loads (amount), liquid phase viscosity (viscosity), liquid phase flow rate (flow velocity).Under the above conditions
It carries out dirty layer removal efficiency (removal efficiency) to investigate, is as a result listed in table 1.
[comparative example 1]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, and wake turbulence section is arranged in vertical heat exchanger cylinder lower part, and ring weir and blender are mounted in wake turbulence section,
Wake turbulence section height 15mm, particle walk shell side from bottom to top, and shell side inner wall uniformly smears grey matter dirt layer 600g.Ring weir inner ring diameter is
0.7 times of heat exchanger barrel dliameter, the outer ring Huan Yan height 5mm.Blender is 3 sheet screw blades, leaf long 6mm, revolving speed 100r/m.Nothing
Inlet tube and with outlet.Horizontal strainer average pore size 0.5mm in particle flushed channel.Particle uses the zirconium silicate of average grain diameter 2mm,
Additional amount 5kg.Liquid phase viscosity 0.001PaS, flow velocity 1m/s.Under this condition, dirty layer removal efficiency 76%.
[comparative example 2]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, and wake turbulence section is arranged in vertical heat exchanger cylinder lower part, and ring weir is mounted in wake turbulence section, and wake turbulence section is high
15mm is spent, particle walks shell side from bottom to top, and shell side inner wall uniformly smears grey matter dirt layer 600g.Ring weir inner ring diameter is heat exchanger cylinder
0.7 times of diameter, the outer ring Huan Yan height 5mm.Device without mixing.Inlet tube is L-type, is mounted on heat exchanger shell import, inlet tube spray
Outlet is at an angle of 45 degrees to the horizontal plane.Band outlet is mounted on the outlet of heat exchanger shell, and big mouth and osculum diameter ratio are 1.5, particle flushed channel
Interior horizontal strainer average pore size 0.5mm.Particle uses the zirconium silicate of average grain diameter 2mm, additional amount 5kg.Liquid phase viscosity
0.001PaS, flow velocity 1m/s.Under this condition, dirty layer removal efficiency 73%.
[comparative example 3]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, and wake turbulence section is arranged in vertical heat exchanger cylinder lower part, and blender is mounted in wake turbulence section, wake turbulence section
Height 15mm, particle walk shell side from bottom to top, and shell side inner wall uniformly smears grey matter dirt layer 600g.Acyclic weir.Blender is 3 sheets
Screw blade, leaf long 6mm, revolving speed 100r/m.Inlet tube is L-type, is mounted on heat exchanger shell import, inlet tube ejiction opening and water
Heisei 45° angle.Band outlet is mounted on the outlet of heat exchanger shell, and big mouth and osculum diameter ratio are 1.5, horizontal filter in particle flushed channel
Net average pore size 0.5mm.Particle uses the zirconium silicate of average grain diameter 2mm, additional amount 5kg.Liquid phase viscosity 0.001PaS, flow velocity
1m/s.Under this condition, dirty layer removal efficiency 79%.
[comparative example 4]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, and wake turbulence section is arranged in vertical heat exchanger cylinder lower part, and ring weir is mounted in wake turbulence section, and wake turbulence section is high
15mm is spent, particle walks shell side from bottom to top, and shell side inner wall uniformly smears grey matter dirt layer 600g.Ring weir inner ring diameter is heat exchanger cylinder
0.7 times of diameter, the outer ring Huan Yan height 5mm.Device without mixing.Without inlet tube and with outlet.Horizontal strainer is average in particle flushed channel
Aperture 0.5mm.Particle uses the zirconium silicate of average grain diameter 2mm, additional amount 5kg.Liquid phase viscosity 0.001PaS, flow velocity 1m/s.
Under this condition, dirty layer removal efficiency 55%.
[comparative example 5]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, and wake turbulence section is arranged in vertical heat exchanger cylinder lower part, and blender is mounted in wake turbulence section, wake turbulence section
Height 15mm, particle walk shell side from bottom to top, and shell side inner wall uniformly smears grey matter dirt layer 600g.Acyclic weir.Blender is 3 sheets
Screw blade, leaf long 6mm, revolving speed 100r/m.Without inlet tube and with outlet.Horizontal strainer average pore size in particle flushed channel
0.5mm.Particle uses the zirconium silicate of average grain diameter 2mm, additional amount 5kg.Liquid phase viscosity 0.001PaS, flow velocity 1m/s.This
Under part, dirty layer removal efficiency 65%.
[comparative example 6]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, acyclic weir, blender and wake turbulence section, and particle walks shell side from bottom to top, and shell side inner wall uniformly applies
Plaster matter dirt layer 600g.Inlet tube is L-type, is mounted on heat exchanger shell import, and inlet tube ejiction opening is at an angle of 45 degrees to the horizontal plane.Band
Outlet is mounted on the outlet of heat exchanger shell, and big mouth and osculum diameter ratio are 1.5, horizontal strainer average pore size in particle flushed channel
0.5mm.Particle uses the zirconium silicate of average grain diameter 2mm, additional amount 5kg.Liquid phase viscosity 0.001PaS, flow velocity 1m/s.This
Under part, dirty layer removal efficiency 61%.
[comparative example 7]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, acyclic weir, blender and wake turbulence section, no inlet tube and with outlet.Particle walks shell from bottom to top
Journey, shell side inner wall uniformly smear grey matter dirt layer 600g.Horizontal strainer average pore size 0.5mm in particle flushed channel.Particle is using flat
The zirconium silicate of equal partial size 2mm, additional amount 5kg.Liquid phase viscosity 0.001PaS, flow velocity 1m/s.Under this condition, dirty layer removal efficiency
49%.
[comparative example 8]
The vertical fluidized bed heat exchanger that shell side is walked using particle shown in Fig. 1, is removed with above-mentioned vertical shell-and-tube heat exchanger shell side
The method of dirt carries out experiment investigation, acyclic weir, blender and wake turbulence section, no inlet tube and with outlet.Without solid particle.In shell side
Wall uniformly smears grey matter dirt layer 600g.Horizontal strainer average pore size 0.5mm in particle flushed channel.Liquid phase viscosity 0.001PaS,
Flow velocity 1m/s.Under this condition, dirty layer removal efficiency 0.8%.
Table 1
Table 1 (continued)
Claims (10)
1. the vertical fluidized bed heat exchanger that particle walks shell side, which is characterized in that the fluid-bed heat exchanger is by feed opening (1), charging
Tank (2), vertical heat exchanger (3), inlet tube (4), ring weir (5), blender (6), wake turbulence section (7), band outlet (8), solid-liquor separation
Device (9), particle flushed channel (10), strainer (11), impurity recovery port (12), down-comer (13), nozzle (14), horizontal tube (15),
Liquid phase groove (16), pump (17) composition；Wherein vertical heat exchanger (3) shell-side outlet passes through band outlet (8) connection liquid-solid separator
(9), liquid-solid separator (9) separates two-way, connects liquid phase groove (16) all the way, and liquid phase recycles after being pumped (17), another way connection
Grain flushed channel (10), impurity are discharged from impurity recovery port (12), and particle enters horizontal tube through down-comer (13) and nozzle (14)
(15), the feed pot (2) with feed opening (1) accesses horizontal tube (15), and particle enters vertical heat exchanger (3) through inlet tube (4)
Shell side completes circulation.
2. the vertical fluidized bed heat exchanger that particle according to claim 1 walks shell side, which is characterized in that the vertical heat exchanging
Device (3) is vertical shell-and-tube heat exchanger, and particle walks vertical heat exchanger (3) shell side, vertical heat exchanger (3) cylinder lower part from bottom to top
It is arranged wake turbulence section (7), ring weir (5) and blender (6) are mounted in wake turbulence section (7), 15~30mm of wake turbulence section (7) height.
3. the vertical fluidized bed heat exchanger that particle according to claim 1 walks shell side, which is characterized in that the ring weir (5)
For interior low outer high annular, ring weir (5) inner ring height is concordant with vertical heat exchanger (3) down tube tank wall, and inner ring diameter is vertical changes
0.7~0.9 times of hot device (3) barrel dliameter, ring weir (5) outer ring height 5mm~10mm, the same vertical heat exchanger of race diameter (3) barrel dliameter.
4. the vertical fluidized bed heat exchanger that particle according to claim 1 walks shell side, which is characterized in that the blender
It (6) is 3~5 sheet screw blades, leaf long 6~8mm, 100~500r/m of revolving speed.
5. the vertical fluidized bed heat exchanger that particle according to claim 1 walks shell side, which is characterized in that the inlet tube
(4) it is mounted on vertical heat exchanger (3) shell side entrance, is higher than wake turbulence section (7), import pattern is L-type or V-type, inlet tube (4)
Ejiction opening is angle, with level at 45~60 ° of angles.
6. the vertical fluidized bed heat exchanger that particle according to claim 1 walks shell side, which is characterized in that the band outlet
(8) it is necking, is mounted at vertical heat exchanger (3) shell-side outlet, the big mouth diameter in band outlet (8) and osculum diameter ratio is 1.5
~3, big mouth diameter is greater than vertical heat exchanger (3) shell-side outlet diameter, and it is straight that osculum diameter is less than vertical heat exchanger (3) shell-side outlet
Diameter.
7. the vertical fluidized bed heat exchanger that particle according to claim 1 walks shell side, which is characterized in that the particle rinses
The strainer (11) that setting is horizontally mounted in slot (10), strainer (11) 0.5~1.5mm of average pore size, particle flushed channel (10) outlet
Higher than strainer (11).
8. the method for vertical shell-and-tube heat exchanger shell side scale removal walks shell side using any one particle described in claim 1-7
Vertical fluidized bed heat exchanger, which is characterized in that particle from feed opening (1) be added feed pot (2), in horizontal tube (15), liquid phase is pushed away
Enter vertical heat exchanger (3) shell side through inlet tube (4) under dynamic, is washed away using particle, cause vertical heat exchanger (3) shell side fouling quilt
Removing, dirty layer, particle and liquid phase enter liquid-solid separator (9) from the band outlet (8) of vertical heat exchanger (3) shell-side outlet together,
It is separated in liquid-solid separator (9) interior liquid phase with dirty layer, particle, liquid phase enters liquid phase groove (16), completes to recycle by pump (17), band
The particle of dirty layer enters particle flushed channel (10), and dirty layer is discharged from impurity recovery port (12), and particle enters down-comer (13), through spraying
Mouth (14) completes circulation.
9. the method for vertical shell-and-tube heat exchanger shell side scale removal according to claim 8, which is characterized in that the particle is
Heap density is greater than density of liquid phase, and the inert solid particle not reacted with medium in use occasion system, and particle is averaged grain
Diameter 2mm~5mm, 5~20kg of additional amount.
10. the method for vertical shell-and-tube heat exchanger shell side scale removal according to claim 8, which is characterized in that the liquid phase
Range of viscosities is 0.001PaS~0.01PaS, flow velocity 1m/s~4m/s.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114485225A (en) * | 2020-10-23 | 2022-05-13 | 中国石油化工股份有限公司 | Fluidized bed heat exchanger |
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| CN106390681A (en) * | 2016-11-15 | 2017-02-15 | 东莞市佳明环保科技有限公司 | Double-fluidized bed adsorption and desorption device and method for continuous treatment of organic waste gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017708A (en) * | 2019-05-07 | 2019-07-16 | 天津渤海石化有限公司 | A kind of high efficiency heat exchanger |
| CN114485225A (en) * | 2020-10-23 | 2022-05-13 | 中国石油化工股份有限公司 | Fluidized bed heat exchanger |
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