CN207472127U - Fluid-bed heat exchanger particle cleaning circulator - Google Patents
Fluid-bed heat exchanger particle cleaning circulator Download PDFInfo
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- CN207472127U CN207472127U CN201721315845.5U CN201721315845U CN207472127U CN 207472127 U CN207472127 U CN 207472127U CN 201721315845 U CN201721315845 U CN 201721315845U CN 207472127 U CN207472127 U CN 207472127U
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Abstract
The utility model is related to a kind of fluid-bed heat exchanger particle cleaning circulator, mainly solve fluid-bed heat exchanger particle can not clean cycle the technical issues of.The utility model is formed by using a kind of including charge door 1, feed pot 2, heat exchanger 3, liquid-solid separator 4, particle flushed channel 5, flush pipe 6, down-comer 7, nozzle 8, horizontal tube 9, liquid phase groove 10, pump 11, spray tube 12, impurity recycling can 13, strainer 14, impurity recovery port 15, particle recovery port 16; particle is cleaned through particle flushed channel 5; the technical solution for completing particle cycle through nozzle 8 preferably solves above-mentioned technical problem, is recycled available for fluid-bed heat exchanger particle cleaning.
Description
Technical field
The utility model belongs to chemical field, specifically, belonging to chemical industry heat transmission equipment long-term operation field, is related to one kind
Fluid-bed heat exchanger particle cleaning circulator is widely used in fluid-bed heat exchanger particle cleaning cycle.
Background technology
Heat exchanger is widely used in industries such as oil, chemical industry, the energy.Increase however as usage time, in heat exchanger
Inevitable there are dirt adhesions, are reduced so as to cause heat exchanger heat exchange efficiency, resistance increases, and influences heat exchanger and normally transports
Row.The tube side and shell of shell-and-tube heat exchanger can all cause heat exchanger to block, influence device long period there are different degrees of fouling
Operation.
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 improve heat exchanger heat transfer effect, effectively prolong to replace traditional heat exchangers
Growth device run time.Document US005676201A discloses a kind of external circulation fluidized bed heat exchanger.Document CN102840578A
Disclose a kind of compact parallel connection type built-in fluid bed heat exchanger.
A bottleneck problem for restricting fluid-bed heat exchanger continuous operation is that the particle that dirty layer is mixed with after scale removal can not
Clean cycle.Thus develop a kind of particle be capable of clean cycle fluid-bed heat exchanger it is very necessary.
The utility model provides a kind of fluid-bed heat exchanger particle cleaning circulator, which passes through flush pipe extension
Residence time of the grain in particle cleaning slot, particle is cleaned by spray tube, particle is made to realize cycle by nozzle, had
Targetedly solves the above problem.
Invention content
Technical problem to be solved in the utility model is that fluid-bed heat exchanger endoparticle can not be cleaned and be followed in the prior art
The problem of ring, provides a kind of fluid-bed heat exchanger particle cleaning circulator.The device extends particle in particle by flush pipe
Residence time in rinse bath cleans particle by spray tube, particle is made to realize cycle by nozzle, have dirty layer and
Particle separating capacity is strong, it can be achieved that the advantages of particle cleaning recycles.
In order to solve the above technical problems, technical solution is as follows used by the utility model：A kind of fluid-bed heat exchanger
Grain clean cycle device, the device is by charge door 1, feed pot 2, heat exchanger 3, liquid-solid separator 4, particle flushed channel 5, flush pipe
6th, down-comer 7, nozzle 8, horizontal tube 9, liquid phase groove 10, pump 11, spray tube 12, impurity recycling can 13, strainer 14, impurity recovery port
15th, particle recovery port 16 forms；Wherein heat exchanger 3 connects liquid-solid separator 4, and liquid-solid separator 4 separates two-way, connects liquid all the way
Phase slot 10, another way connection particle flushed channel 5, flush pipe 6 is located in particle flushed channel 5, a connection liquid-solid separator 4, separately
One connection down-comer 7, down-comer 7 access horizontal tube 9 by nozzle 8, and spray tube 12 connects particle flushed channel 5 and imports and exports,
Impurity recycling can 13 of the connection of spray tube 12 equipped with strainer 14 of grain flushed channel 5 outlet out, the installation of 13 lower part of impurity recycling can
Impurity recovery port 15, liquid phase groove 10 export through pump 11 connection horizontal tubes 9, horizontal tube 9 connection with charge door 1 feed pot 2 with
And particle recovery port 16.
In the technical solution, the one kind of heat exchanger 3 for vertical or horizontal shell-and-tube heat exchanger, particle walks tube side from bottom to top
Or shell is walked from bottom to top.
In the technical solution, flush pipe 6 is mounted in particle flushed channel 5, is 4 export pipeline phase of caliber and liquid-solid separator
Same continuous U bend pipe, 6 straight tube section surface trepanning of flush pipe, 0.5~1.5mm of open pore size, straight pipe overall length 200~
400mm, by 6 all straight pipe surface area summation meters of flush pipe, percent opening is 40%~80%.
In the technical solution, spray tube 12 is arranged in particle flushed channel 5 and imports and exports both ends, and the spray tube 12 is total by one
Pipe is divided into the n of n × n arrangements2Root is in charge of 5 import of connection particle flushed channel, and particle flushed channel 5 exports similary connection n × n arrangements
n2Root is in charge of, and remerges Cheng Yigen manifold and enters the impurity recycling can 13 equipped with strainer 14, the value range of n is 3-8, is imported and exported
It is in charge of caliber with manifold calibers, is in charge of 20~30mm of length.
In the technical solution, 14 0.5~1.5mm of average pore size of strainer, impurity recovery port 15 is located at before strainer 14.
In the technical solution, 5 length of particle flushed channel is 500~1000mm.
In the technical solution, the one kind of liquid-solid separator 4 for cyclone hydraulic separators or gravity sedimentation type separator.
In the technical solution, nozzle 8 is the necking pipe that direction is flowed to along liquid phase, is crossed mounted on down-comer 7 and horizontal tube 9
Place, big 9 caliber of mouth diameter same level pipe, export osculum section and down-comer 7 by 0.3~0.4 times of a diameter of big mouth diameter of osculum
Left side internal diameter is concordant, and osculum flow development length is 2~2.5 times of osculum caliber.
In the technical solution, pump 11 is one kind in centrifugal pump, plunger pump or mashing pump.
In the technical solution, 13 length of impurity recycling can is 200~400mm..
In the technical solution of the utility model, using separative efficiency η as the foundation for judging dirty layer and particle separating capacity.Point
Definition from efficiency accounts for the ratio of total dirty layer for the dirty layer of removing.Circular is as follows：It is artificially smeared in 3 inner wall of heat exchanger
Equivalent dirt layer, particle circulate operation is carried out under the same terms, and continuous cycle three times, recycles dirty layer simultaneously from impurity recovery port 15 every time
It weighs, remembers that the total dirty layer weight recycled three times is M1, the particle gross weight in addition system is M2, due to system dead zone, particle can not
Very recycle, setting particle recovery coefficient be with the relevant constant of system, be C, continuous cycle three times after from particle recovery port
16 recycling particle (with dirty layer is not eliminated) gross weights are M3, then the calculation formula of separative efficiency is as follows：η=M1/(M3-M2×C+M1)
× 100%.
Using the technical solution of the utility model, divided admittedly by charge door 1, feed pot 2, heat exchanger 3, liquid by using one kind
It is returned from device 4, particle flushed channel 5, flush pipe 6, down-comer 7, nozzle 8, horizontal tube 9, liquid phase groove 10, pump 11, spray tube 12, impurity
Closed cans 13, strainer 14, impurity recovery port 15, particle recovery port 16 form to obtain the acquirement of fluid-bed heat exchanger particle cleaning circulator
The preferable technique effect of separative efficiency 81%.
Description of the drawings
Fig. 1 is fluid-bed heat exchanger particle cleaning circulator flow diagram described in the utility model.
In Fig. 1,1 it is charge door, 2 is feed pot, 3 is heat exchanger, 4 is liquid-solid separator, 5 is particle flushed channel, 6 is punching
Wash pipe, 7 be down-comer, 8 be nozzle, 9 be horizontal tube, 10 be liquid phase groove, 11 be pump, 12 be spray tube, 13 be impurity recycling can,
14 it is strainer, 15 be impurity recovery port, 16 is particle recovery port.
The utility model is further elaborated below by embodiment and comparative example, but the method for the utility model is not
It is only limitted to this.
Specific embodiment
With reference to embodiment, the method for further illustrating the utility model.
【Embodiment 1】
Using fluid-bed heat exchanger particle cleaning circulator described in the utility model, particle scale removal experiment is carried out, is investigated
Separative efficiency after in triplicate.Heat exchanger is vertical shell-and-tube heat exchanger, and particle walks tube side from bottom to top.Flush pipe trepanning
Aperture 0.5mm, overall length 200mm, percent opening 40%.It is 3 × 3 that spray tube, which is in charge of, is in charge of length 20mm, open pore size 0.5mm.
It is 500mm that grain, which rinses slot length,.With water flush pipe, water flow velocity 3m/s are purged through spray tube.Liquid-solid separator is cyclone hydraulic separators.
0.3 times of a diameter of big mouth diameter of nozzle osculum, osculum flow development length are equal to 2 times of osculum caliber.It is filtered in impurity recycling can
Net average pore size 0.5mm.Using centrifugal pump.Impurity recycling canister length is 200mm.
It is tested using the zirconium silicate particles of average grain diameter 2mm, addition 5kg.Liquid phase is recycled using water, viscosity
0.001PaS, flow velocity 1m/s.Separative efficiency is 73% under this condition.
【Embodiment 2~17】
Using the fluid-bed heat exchanger particle cleaning circulator identical with embodiment 1, particle scale removal experiment is carried out, is investigated
Separative efficiency after in triplicate.Particle is from bottom to top.Change heat exchanger types (A), particle trend (B), flush pipe trepanning
Aperture (C), flush pipe overall length (D), flush pipe percent opening (E), spray tube are in charge of n values (F), and spray tube is in charge of length (G), spray
Pipe is in charge of open pore size (H), and particle rinses slot length (I), liquid-solid separator type (J), and nozzle osculum diameter accounts for big mouth diameter
Ratio (K), the ratio (L) of osculum flow development length and osculum caliber, impurity recycling canister length (M), pump type (N), impurity recycling
Tank strainer average pore size (O).With water flush pipe, water flow velocity 3m/s are purged through spray tube.Using the zirconium silicate of average grain diameter 2mm
Grain is tested, addition 5kg.Liquid phase is recycled using water, viscosity 0.001PaS, flow velocity 1m/s.It investigates under these conditions
Separative efficiency (η), is as a result listed in table 1.
【Comparative example 1】
Using fluid-bed heat exchanger particle cleaning circulator described in the utility model, particle scale removal experiment is carried out, is investigated
Separative efficiency after in triplicate.Heat exchanger is vertical shell-and-tube heat exchanger, and particle walks tube side from bottom to top.Flush pipe trepanning
Aperture 0.5mm, overall length 200mm, percent opening 40%.Without spray tube.It is 500mm that particle, which rinses slot length,.Liquid-solid separator is rotation
Liquid/gas separator.0.3 times of a diameter of big mouth diameter of nozzle osculum, osculum flow development length are equal to 2 times of osculum caliber.Impurity returns
Closed cans Inner filter net average pore size 0.5mm.Using centrifugal pump.Impurity recycling canister length is 200mm.Using the silicon of average grain diameter 2mm
Sour zirconium particle, addition 5kg.Cycle liquid phase be water, viscosity 0.001PaS, flow velocity 1m/s.Particle can not clean under this condition
Cycle
【Comparative example 2】
Using fluid-bed heat exchanger particle cleaning circulator described in the utility model, particle scale removal experiment is carried out, is investigated
Separative efficiency after in triplicate.Heat exchanger is vertical shell-and-tube heat exchanger, and particle walks tube side from bottom to top.Without flush pipe,
Flush pipe is directly replaced with a straight tube.It is 3 × 3 that spray tube, which is in charge of, is in charge of length 20mm, open pore size 0.5mm.Particle rinses
Slot length is 500mm.Liquid-solid separator is cyclone hydraulic separators.0.3 times of a diameter of big mouth diameter of nozzle osculum, osculum straight pipe
Length is equal to 2 times of osculum caliber.Impurity recycling can Inner filter net average pore size 0.5mm.Using centrifugal pump.Impurity recycles canister length
For 200mm.Using the zirconium silicate particles of average grain diameter 2mm, addition 5kg.Cycle liquid phase is water, and viscosity 0.001PaS flows
Fast 1m/s.Separative efficiency is 7.8% under this condition.
【Comparative example 3】
Using fluid-bed heat exchanger particle cleaning circulator described in the utility model, particle scale removal experiment is carried out, is investigated
Separative efficiency after in triplicate.Heat exchanger is vertical shell-and-tube heat exchanger, and particle walks tube side from bottom to top.Without flush pipe,
Without spray tube.Liquid-solid separator is directly connected to down-comer, and liquid-solid separator is cyclone hydraulic separators.The a diameter of big mouth of nozzle osculum is straight
0.3 times of diameter, osculum flow development length are equal to 2 times of osculum caliber.Impurity recycling can Inner filter net average pore size 0.5mm.Using
Centrifugal pump.Impurity recycling canister length is 200mm.Using the zirconium silicate particles of average grain diameter 2mm, addition 5kg.Recycling liquid phase is
Water, viscosity 0.001PaS, flow velocity 1m/s.Particle can not clean cycle under this condition.
Table 1
Table 1 (continued)
Claims (10)
1. fluid-bed heat exchanger particle cleaning circulator, which is characterized in that the device by charge door (1), feed pot (2), change
Hot device (3), liquid-solid separator (4), particle flushed channel (5), flush pipe (6), down-comer (7), nozzle (8), horizontal tube (9), liquid
Phase slot (10), pump (11), spray tube (12), impurity recycling can (13), strainer (14), impurity recovery port (15), particle recovery port
(16) it forms；Wherein, heat exchanger (3) connection liquid-solid separator (4), liquid-solid separator (4) separate two-way, connect liquid phase groove all the way
(10), another way connection particle flushed channel (5), flush pipe (6) is in particle flushed channel (5), a connection liquid-solid separator
(4), other end connection down-comer (7), down-comer (7) access horizontal tube (9), spray tube (12) connection particle by nozzle (8)
Flushed channel (5) is imported and exported, impurity recycling can of spray tube (12) connection equipped with strainer (14) of particle flushed channel (5) outlet out
(13), impurity recycling can (13) lower part installation impurity recovery port (15), liquid phase groove (10) outlet is through pumping (11) connection horizontal tube
(9), horizontal tube (9) connection is with the feed pot (2) of charge door (1) and particle recovery port (16).
2. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the heat exchanger
(3) one kind for vertical or horizontal shell-and-tube heat exchanger, particle walk tube side or walk shell from bottom to top from bottom to top.
3. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the flush pipe
(6) in particle flushed channel (5), it is the caliber continuous U bend pipe identical with liquid-solid separator (4) export pipeline, rinses
The section surface trepanning of (6) straight tube is managed, 0.5~1.5mm of open pore size, straight pipe 200~400mm of overall length are all straight by flush pipe (6)
Pipeline section surface area summation meter, percent opening are 40%~80%.
4. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the spray tube
(12) particle flushed channel (5) inlet and outlet both ends are arranged in, the spray tube (12) is divided into the n of n × n arrangements by a manifold2Root
It is in charge of connection particle flushed channel (5) import, the n of the similary connection n × n arrangements in particle flushed channel (5) outlet2Root is in charge of, and remerges
Cheng Yigen manifold enters the impurity recycling can (13) equipped with strainer (14), and the value range of n is 3-8, and it is same that inlet and outlet are in charge of caliber
Manifold calibers are in charge of 20~30mm of length.
5. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the strainer (14)
0.5~1.5mm of average pore size, impurity recovery port (15) is before strainer (14).
6. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the particle rinses
Slot (5) length is 500~1000mm.
7. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the solid-liquor separation
The one kind of device (4) for cyclone hydraulic separators or gravity sedimentation type separator.
8. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the nozzle (8)
To flow to the necking pipe in direction along liquid phase, mounted on down-comer (7) and horizontal tube (9) intersection, big mouth diameter same level pipe (9)
Caliber, 0.3~0.4 times of a diameter of big mouth diameter of osculum, outlet osculum section is concordant with internal diameter on the left of down-comer (7), osculum
Flow development length is 2~2.5 times of osculum caliber.
9. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that pump (11) are
One kind in centrifugal pump, plunger pump or mashing pump.
10. fluid-bed heat exchanger particle cleaning circulator according to claim 1, which is characterized in that the impurity returns
Closed cans (13) length is 200~400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315845.5U CN207472127U (en) | 2017-10-12 | 2017-10-12 | Fluid-bed heat exchanger particle cleaning circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315845.5U CN207472127U (en) | 2017-10-12 | 2017-10-12 | Fluid-bed heat exchanger particle cleaning circulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207472127U true CN207472127U (en) | 2018-06-08 |
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ID=62266908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721315845.5U Active CN207472127U (en) | 2017-10-12 | 2017-10-12 | Fluid-bed heat exchanger particle cleaning circulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207472127U (en) |
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2017
- 2017-10-12 CN CN201721315845.5U patent/CN207472127U/en active Active
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