CN102878828B - For the heat-exchange system of bulk cargo with for the method operating this heat-exchange system - Google Patents
For the heat-exchange system of bulk cargo with for the method operating this heat-exchange system Download PDFInfo
- Publication number
- CN102878828B CN102878828B CN201210240592.5A CN201210240592A CN102878828B CN 102878828 B CN102878828 B CN 102878828B CN 201210240592 A CN201210240592 A CN 201210240592A CN 102878828 B CN102878828 B CN 102878828B
- Authority
- CN
- China
- Prior art keywords
- heat
- bulk cargo
- exchange
- exchange device
- carrier gas
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Classifications
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/826—Apparatus therefor
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
- B29B7/242—Component parts, details or accessories; Auxiliary operations for feeding in measured doses
- B29B7/244—Component parts, details or accessories; Auxiliary operations for feeding in measured doses of several materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
- B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0045—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for granular materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to for the heat-exchange system of bulk cargo with for the method operating this heat-exchange system.During described heat-exchange system (1) operates, by means of pneumatic conveyor (2), bulk cargo and carrier gas are fed into the heat-exchange device (8,9) of bulk cargo.Heat transport fluid is fed to the heat exchange department (10) of heat-exchange device (8,9).Bulk cargo is pneumatically transported through heat-exchange device (8,9).This is so to occur, so that during pneumatic conveying, bulk cargo is transported through heat exchange department (10) only along the flow direction of carrier gas, and the bulk cargo carrying on the direction of transfer of carrier gas transmits stream (BF) definitely more than the bulk cargo stream (BG) contrary with the flow direction of carrier gas.Heat transfer efficiency is improve by heat-exchange system with for its operational approach.
Description
Technical field
The present invention relates to a kind of heat-exchange system for bulk cargo (in bulk/discrete material).The present invention is also
Relate to a kind of method for operating this heat-exchange system.
Background technology
From the known a kind of heat-exchange system for bulk cargo of DE28 15 825A1.From
EP 2 159 526A2, JP09-104 020A, US2 550 722 and DE10 2,004 041 375A
Other heat-exchange device known.
Summary of the invention
It is an object of the invention in the way of improving heat transfer efficiency, develop a kind of heat exchange series for bulk cargo
System.
According to the present invention, this purpose is realized for the heat-exchange system of bulk cargo by such a, institute
State heat-exchange system
-there is the pneumatic conveyor for bulk cargo, described pneumatic conveyor has for bulk cargo
Feed mechanism also has the feed mechanism for carrier gas,
-there is at least two bulk cargo heat-exchange device, described at least two bulk cargo heat-exchange device is arranged
In the downstream of described bulk cargo feed mechanism and be respectively provided with:
--heat exchange department, described heat exchange department is handed over the described heat of leading to for heat-exchange fluid
Change the fluid feeding portion in portion and lead to the fluid issuing outside described heat exchange department,
--bulk cargo feeding portion,
--bulk cargo discharge portion,
-wherein, described bulk cargo heat-exchange device is front and back sequentially arranged in bulk cargo each other and transmits in path,
-wherein, described pneumatic conveyor and at least one described bulk cargo heat-exchange device are configured to
Making during pneumatic conveying, bulk cargo is transmitted (conveyed along the flow direction of described carrier gas by clean
Net) by the heat exchange department of corresponding heat-exchange device,
-wherein, the bulk cargo on the flow direction of described carrier gas transmits stream and is definitely more than and described load
Measurable bulk cargo stream that the flow direction of fortune body is contrary.
This purpose is come real for operation according to the operational approach of the heat-exchange system of the present invention also by a kind of
Existing, described operational approach has steps of:
-bulk cargo and carrier gas are fed into described heat-exchange device,
-heat transport fluid is fed into the heat exchange department of described heat-exchange device,
-bulk cargo pneumatically transported through described heat-exchange device,
-make bulk cargo circulate in heat-exchange device at least one described by this way: in pneumatic biography
Sending period, bulk cargo is transported through described heat-exchange device only along the flow direction of described carrier gas
Heat exchange department, the bulk cargo stream on the flow direction of described carrier gas is more than the stream with described carrier gas
Dynamic bulk cargo stream in opposite direction.
It should be understood that according to the present invention can if had at least one bulk cargo heat-exchange device
The cyclic transfer of the bulk cargo counter current flow (bulk cargo adverse current) of (i.e. can not ignore) measured, the most each other
The multiple bulk cargo heat-exchange devices being the most sequentially arranged in bulk cargo transmission path make heat-exchange system
Heat transfer efficiency improve.The bulk cargo transmission that bulk cargo counter current flow is greater than on the flow direction of carrier gas
The 1% of stream.Hereinafter it is also referred to as the heat friendship of at least one heat-exchange device of recycle heat exchanger
Changing this cyclic transfer in portion makes the heat transfer between the heat transport fluid in bulk cargo and heat exchange department be able to
Improve.Heat-exchange device can be used for cooling down described bulk cargo or for heating described bulk cargo.Hand over according to heat
Changing the configuration of system, the straight-through transmission without bulk cargo counter current flow can on bulk cargo direction of transfer
Later heat-exchange device occurs.Then, relevant heat exchange department is a kind of and flows (co-current)
Flowing heat exchange department.Or, the cyclic transfer with the bulk cargo counter current flow that can sense can be through heat exchange
All heat-exchange devices of system occur.In this case, all heat exchange departments are all configured to follow
Ring heat exchange department.Be positioned at the upstream of direction of transfer heat-exchange device bulk cargo discharge portion can be positioned at biography
The downstream in direction the bulk cargo feeding portion of the most followed by heat-exchange device is sent to overlap.Carrying
Gas feed mechanism may be structured to pressure mechanism or aspirating mechanism.The bulk cargo heat exchange dress of more than two
Put and can front and back sequentially be arranged in heat-exchange system each other.It is, in general, that heat-exchange system can have
2 to 20 each other before and after sequentially arrange heat-exchange device in the transmission direction, preferably 2 to 10
Individual and more preferably 2 to 5 each other before and after be sequentially arranged in bulk cargo and transmit the heat exchanges in path
Device.Heat transport fluid can be with convection current, such as to intersect convection current (cross-counter-flow) mode quilt
Heat exchange department is passed through in guiding.Heat transport fluid can be liquid (such as water) or gas (such as air).
Heat-exchange system can have at least one the additional carrier gas led at least one bulk cargo feeding portion
Intake line.The desired cyclic transfer with the bulk cargo counter current flow can not ignore is derived from heat-exchange system
Parameter (the particularly length of heat exchange department, especially directed in heat exchange department heat-exchange tube
Length, by gas velocity and the load of the carrier gas of pneumatic conveyor feeding during pneumatic conveying
The useful load of fortune body and bulk cargo) interaction.
(wherein pneumatic conveyor and at least one bulk cargo heat-exchange device are constructed such that temperature ratio
Obtaining during operation, bulk cargo temperature T1 in the region of the delivery line before bulk cargo feeding portion is with scattered
Bulk cargo temperature T2 in transitional region between material feeding portion and heat exchange department differs a temperature difference △ T, its
In for bulk cargo temperature T1 in the region of the delivery line before temperature difference △ T and bulk cargo feeding portion
For ratio, it is suitable for Δ T/T1 >=0.01) it is the bulk cargo stream contrary with the flow direction of carrier gas
Tolerance, this bulk cargo conductance causes favourable heat transfer efficiency.As long as there is not the bulk cargo contrary with flow direction
Stream, the entrance side in bulk cargo feeding portion is the most identical with the bulk cargo temperature level of outlet side.Only when exist with
During the contrary bulk cargo stream sensed of the flow direction of carrier gas, the outlet side in bulk cargo feeding portion, also
It it is exactly the bulk cargo of entrance side being just different from feeding portion in the bulk cargo temperature at the transition part of heat exchange department
Temperature, because being delivered back into bulk cargo feeding portion through heat exchange department on the contrary with the flow direction of carrier gas
Bulk cargo the most with heat transport fluid generation heat exchange.(it is in entrance side and outlet in bulk cargo feeding portion
The temperature of side is measured to determine described temperature ratio) can be front and back sequentially to be arranged in bulk cargo each other
Transmit the transition part between two bulk cargo heat-exchange devices in path.Exemplary temperature at 80 ° of C
T1, △ T >=0.8 ° C.Ratio △ T/T1 can be more than 0.03 or can be more than 0.05.
(wherein pneumatic conveyor and at least one bulk cargo heat-exchange device are configured to heat-exchange system
Make during operation, the bulk cargo temperature in the region of the delivery line before bulk cargo feeding portion and bulk cargo
Bulk cargo temperature difference one temperature difference in transitional region between feeding portion and heat exchange department, the two bulk cargo
This temperature difference between temperature is at least 1K) advantage corresponding to the most combined for embody bulk cargo to
The advantage described in temperature ratio of stream feature.This temperature difference can be at least 5K or can be at least 8K.
Particularly preferred heat transfer efficiency has been presented in the range of this absolute temperature difference.
(wherein contrary with the flow direction of carrier gas bulk cargo counter current flow is definitely more than heat-exchange system
/ 10th of bulk cargo stream on the flow direction of carrier gas, i.e. wherein bulk cargo counter current flow is absolute
Amount is more than ten of the bulk cargo stream on (only) direction of transfer, on the flow direction of namely carrier gas
/ mono-) advantage is corresponding to above with reference to the advantage described in said temperature ratio or the above-mentioned temperature difference.
The bundled tube heat exchange department being arranged at least one heat-exchange device allows particularly effective biography
Heat, described bundled tube heat exchange department has multiple heat-exchange tube, and the plurality of heat-exchange tube is with bulk cargo
Feed opening and bulk cargo outlet opening, heat-exchange fluid around heat-exchange tube from fluid feeding portion to
In the flow path of fluid issuing directed.Bundled tube heat exchange department can be cycling hot exchange part or also
Stream flowing heat exchange department.Or, heat-exchangers of the plate type can be used, this heat-exchangers of the plate type also can be by structure
Make as cycling hot exchange part or concurrent flow heat exchange department.
The heat exchange department of at least one in these heat-exchange devices can have in the transmission direction 0.5
Length in the range of between m and 25m.The length having proven to this heat exchange department is the most special
It is not adapted for carrying out good heat transfer.The length of heat exchange department is preferably 1m to 12m, more preferably
Ground is 1.5m to 6m.As a kind of trend, have proven to the shortest heat exchange department
It is favourable for heat transfer efficiency.All heat-exchange devices of heat-exchange system all can have in this scope
Interior length.Or, each single heat-exchange device can have different length.
One of heat-exchange device in its assembled form can be more than 10 ° with the angle γ folded by vertical direction.
This angle provides and affects bulk cargo and be sent in cycles the certain degree of freedom by corresponding heat-exchange device.
These heat-exchange devices meeting condition γ ＜ 10 ° are vertically provided.γ=0 ° means and gravity direction phase
Anti-transmission.In vertically arranging, γ=180 ° will be associated with the transmission along gravity direction.According to this
Invention, at least one in heat-exchange device, γ can be between 10 ° and 170 ° in the range of,
In the range of preferably between 10 ° and 60 °, or between 120 ° and 170 ° in the range of.
At least one the distribution guide plate for bulk cargo being arranged in heat exchange department adds bulk cargo and heat-carrying
Heat transfer between fluid.Distribution guide plate can be arranged in heat exchange department in such a way, i.e. transmits
The path of route (bulk cargo is transmitted through heat exchange department along this transmission route) with pass through heat exchange
Prolongation is compared in the straight-through transmission path in portion.May be housed in for improving the wide screen eye silk screen of heat transfer further
The bulk cargo of heat exchange department transmits in path, or is contained in the remainder of remaining heat-exchange system.Point
Join guide plate to be also disposed in bulk cargo discharge portion and/or bulk cargo feeding portion transmitting route with impact.
At least one circulation for bulk cargo being arranged in bulk cargo discharge portion and/or bulk cargo feeding portion is led
Project rings the circulation in heat-exchange device, namely bulk cargo counter current flow and the flow direction at carrier gas
On bulk cargo stream between ratio.Circulation guide plate may be structured to cone, this cone and carrier gas side
To, namely the clean direction of transfer of bulk cargo open on the contrary.Multiple circulation guide plates may be disposed to cascade shape
Formula.At least one bulk cargo displacement body may be arranged in bulk cargo discharge portion and/or bulk cargo feeding portion.This shifting
Position body allows also to the bulk cargo circulation affecting in heat-exchange device.
(wherein bulk cargo discharge portion and/or bulk cargo feeding portion have relative to phase the arranged off-centre of delivery axis
The center delivery axis that the center delivery axis of adjacent heat exchange department is arranged prejudicially) allow also to according to target
Affect the bulk cargo circulation in heat-exchange device.
It is disposed in the bulk cargo discharge portion of the heat-exchange device of the upstream of direction of transfer and is positioned at sender
To downstream and the most followed by heat-exchange device bulk cargo feeding portion between bulk cargo homogenizing
Portion allows the homogenization of bulk cargo transmission or bulk cargo to transmit the good mixing on cross section at bulk cargo.Adjacent one another are
Heat exchange department between the ratio of diameter dV in length 2L and the bulk cargo homogenizing portion that transmit path
L/dV can be in the range of between 1 and 20, preferably in the range of between 2 and 15,
And more preferably in the range of between 3 and 10.Distribution guide plate as above also can be arranged
In bulk cargo homogenizing portion.
The center delivery axis that bulk cargo homogenizing portion can have the heat exchange department adjacent relative at least one is inclined
The center delivery axis that heart is arranged.The advantage of this arranged off-centre in bulk cargo homogenizing portion is corresponding to above
Discharge or the advantage described in arranged off-centre in feeding portion with reference to bulk cargo.
The cross-sectional constriction portion transmitted in path between heat-exchange device sequentially can also be used for affecting bulk cargo
Circulation.
According to the present invention for operate heat-exchange system operational approach (described operational approach have with
Lower step:
-bulk cargo and carrier gas are fed into described heat-exchange device,
-heat transport fluid is fed into the heat exchange department of described heat-exchange device,
-bulk cargo pneumatically transported through described heat-exchange device,
-make bulk cargo circulate in heat-exchange device at least one described by this way: in pneumatic biography
Sending period, bulk cargo is transported through described heat-exchange device only along the flow direction of described carrier gas
Heat exchange department, the bulk cargo stream on the flow direction of described carrier gas is more than the stream with described carrier gas
Dynamic bulk cargo stream in opposite direction,
Including making bulk cargo last heat-exchange device on the direction of transfer of heat-exchange system transmits
Pass through, so that during pneumatic conveying, bulk cargo is only transmitted through along the flow direction of carrier gas
The heat exchange department of last heat-exchange device, including making bulk cargo circulate in all heat-exchange devices,
Wherein bulk cargo and carrier gas are transmitted than μ with the loading of up to 100, and wherein carrier gas with
The space velocity v of up to 50m/s is fed) advantage corresponding to above with reference to heat-exchange system institute
The advantage stated.The bulk cargo counter current flow contrary with the flow direction of carrier gas can be handed over as explained above with heat again
Change temperature ratio or the absolute temperature difference of bulk cargo in region based on bulk cargo feeding portion as described in system
Quantify.During bulk cargo circulation at least one heat-exchange device, with the flowing side of carrier gas
To contrary bulk cargo counter current flow can more than carrier gas flow direction on bulk cargo transmit stream ten/
One.(wherein bulk cargo and carrier gas are with up to 100 to have proven to useful load or carrier gas speed parameter
Loading transmitted than μ, and wherein carrier gas is fed with the space velocity v of up to 50m/s)
The bulk cargo being particularly suitable for realizing making Heat Transfer Optimization circulates.
Accompanying drawing explanation
Below will be by means of accompanying drawing embodiment of the present invention will be described in more detail.
Fig. 1 illustrates to have before and after each other and is sequentially arranged in two bulk cargo heat friendships that bulk cargo transmits in path
The heat-exchange system of changing device,
Fig. 2 illustrates a change of the layout of two the bulk cargo heat-exchange devices sequentially arranged before and after each other
Type；
Fig. 3 illustrates another of the layout of two the bulk cargo heat-exchange devices sequentially arranged before and after each other
Modification；
Fig. 4 is shown in two the bulk cargo heat sequentially arranged before and after each other and hands over the configuration being similar to Fig. 2
One change in the bulk cargo homogenizing portion of the transitional region between bulk cargo discharge portion and the bulk cargo feeding portion of changing device
Type, illustrate only a part for the heat exchange department of heat-exchange device；
Fig. 5 illustrates the transition in the layout of the heat-exchange device according to Fig. 3 with the view being similar to Fig. 4
One modification in region；
Fig. 6 illustrates two bulk cargo heat that the heat-exchange system according to Fig. 1 is sequentially arranged before and after each other
Details in the region of switch, it is schematically shown that required size is to describe pneumatic conveying
Operation；
Fig. 7 is shown through the cross section of the board-like heat exchange department of one of bulk cargo heat-exchange device；
Fig. 8 is shown through the cross section of the board-like heat exchange department of one of bulk cargo heat-exchange device, and it is basis
The alternative forms of the heat exchange department of Fig. 7；
Fig. 9 is from transmitting the bulk cargo feeding portion of preceding bulk cargo heat-exchange device path until sequentially
It is arranged in the heat exchange department of bulk cargo heat-exchange device in this preceding heat-exchange device downstream the most also
And subregion illustrates heat-exchange system between each several part discontinuously；
Figure 10 to 12 illustrates the modification of heat-exchange system with the view being similar to Fig. 9；
Figure 13 illustrates two bulk cargos sequentially arranged before and after the mode according to the layout according to Fig. 1 is each other
Another modification of heat-exchange device；
Figure 14 schematically shows the Transfer pipe of the heat exchange department of one of heat-exchange device；And
Figure 15 illustrates another modification of heat-exchange system with the view being similar to Fig. 9 to 12.
Detailed description of the invention
Fig. 1 is shown schematically for the heat-exchange system 1 of bulk cargo.Granule bulk cargo can be used as institute
State bulk cargo, such as from PE, PP, PC, PET or similar granule of plastic material industry.Also may be used
Use powder bulk cargo as from plastic material, food or the PTA of mineral material industry, cement, trimerization
Cyanamide, PVC, dry material or the like powder of closing are as described bulk cargo.
Heat-exchange system 1 has the pneumatic conveyor 2 for bulk cargo.The latter has for bulk cargo
Feed mechanism 3 and the feed mechanism 4 for carrier gas.Bulk cargo feed mechanism 3 has product feeding
Container 5, namely the bulk cargo feeding container in silo form, and (many for measuring the lattice wheel of feeding
Porose disc, cellular wheel) gate 6.Bulk cargo is added to by bulk cargo feed mechanism 3 uses carrier gas
Feed mechanism 4 is loaded with the feeding point of the pneumatic conveying pipeline 7 of carrier gas.Except gate, the most just
It is that beyond such as lattice wheel gate 6, the feed station being positioned at the supplying position in delivery line 7 also can be wrapped
Include pressure vessel.As it is shown in figure 1, carrier gas feed mechanism 4 may be structured to pressure mechanism or
Can also be configured to aspirating mechanism.
The transmission path of two bulk cargo heat-exchange devices 8,9 bulk cargo in heat-exchange system 1 is arranged
Downstream at bulk cargo feed mechanism 3.Each heat-exchange device 8,9 has heat exchange department 10, should
Heat exchange department 10 is with the fluid led in heat exchange department 10 of the heat transport fluid for heat-exchange system
Feeding portion 11 and lead to the fluid issuing outside heat exchange department 10 or discharge portion 12.
Two bulk cargo heat-exchange devices 8,9 are front and back sequentially arranged in bulk cargo each other and transmit in path, and
And in this manual to be numbered along the order transmitting path.Two heat-exchange devices 8,9 are vertical
Ground self is arranged.It is arranged in bottom and posterior along transmitting path preceding heat-exchange device 8
Heat-exchange device 9 is vertically disposed at above it.The bulk cargo passed through from two heat-exchange devices 8,9 passes
Send path the most substantially vertically to extend, namely extend from bottom to up in shown configuration.
Heat transport fluid is by convection current, particularly intersect and flow through two heat-exchange devices 9,8 in the way of convection current
Heat exchange department 10.In this case, the biography of two heat-exchange devices 8,9 is passed through for heat transport fluid
Send path concatenation to arrange, thus the fluid issuing 12 being used for heat-exchange device 9 is directly connected to heat exchange
The fluid feeding portion 11 of device 8.Fluid feeding portion 11 and the heat transport fluid source 13 of heat-exchange device 9
Fluidly connect and the fluid issuing 12 of heat-exchange device 8 connects with heat transport fluid output mechanism 14 fluid
Connect.As not shown in Fig. 1, heat transport fluid output mechanism 14 may be connected to again heat transport fluid source 13
To produce the fluid circuit of Guan Bi.The loop of heat transport fluid can be reached by the pump not shown in Fig. 1.This
Outward, another heat exchanger can be set, before by heat transport fluid source 13 feeding heat transport fluid, by
In this heat exchanger, the temperature of heat transport fluid is controlled as predetermined temperature.
Each heat-exchange device 8,9 also has bulk cargo feeding portion 15 and bulk cargo discharge portion 16.Heat is handed over
The bulk cargo discharge portion 16 of changing device 8 communicates directly with one another with the bulk cargo feeding portion 15 of heat-exchange device 9
And hereinafter also referred to as connect collection chamber 17.
The bulk cargo feeding portion 15 of heat-exchange device 8 is configured to extended cone, and is delivery line 7
Narrower cross section and heat-exchange device 8 heat exchange department 10 wider cross section between section transitions portion.
Cross section between two heat-exchange devices 8,9 does not occur notable in the region connecting collection chamber 17
Change.As will be described below, other Cross section Design is also possible.The bulk cargo of heat-exchange device 9
Discharge portion 16 is configured to shrink cone, and this contraction cone is the heat exchange department 10 of heat-exchange device 9
Wider cross section and be arranged in narrower section of another pneumatic conveying pipeline 18 in heat-exchange device 9 downstream
Section transitions portion between face.
Bulk cargo feeding portion 15 and bulk cargo discharge portion 16 heat exchange department 10 adjacent with them has bulk cargo
Transmit and connect.On the one hand the transmission path transmitting path and another aspect heat transport fluid of bulk cargo is each other
Extend dividually.
Last heat-exchange device 9 that bulk cargo is transmitted in path by delivery line 18 receives appearance with bulk cargo
Device 19,20 connects, and the bulk cargo of controlled temperature is first stored in bulk cargo temporarily before further use and receives
In container 19,20.In order to bulk cargo is distributed to receive container 19,20, delivery line 18 has point
Branch 21, this branch 21 may be structured to transmit deflector.Container 19,20 is received to be configured to
Silo.
At least one in pneumatic conveyor 2 and two bulk cargo heat-exchange devices 8,9 is constructed such that
Must be during pneumatic conveying, bulk cargo is transmitted along the flow direction of carrier gas only with clean transmission stream NF
Heat exchange department 10 by heat-exchange device 8,9.In this case, the flowing side of carrier gas
Total bulk cargo upwards transmits stream BF definitely more than the total bulk cargo pair contrary with the flow direction of carrier gas
To stream BG.This can find out from the temperature difference of the bulk cargo in the region in bulk cargo feeding portion 15, as hereafter will
As illustrating in conjunction with Fig. 5.In this case, counter current flow BG definitely transmits stream more than total bulk cargo
/ 10th of BF.Therefore BG/BF > 0.1, preferably BG/BF it are suitable for > 0.2 or preferably
>BG/BG>0.4。
Heat-exchange device 8,9 can be used for cooling down bulk cargo or heating.
This bulk cargo transmission (is wherein produced after having deducted total bulk cargo counter current flow BG in the transmission direction
Raw clean bulk cargo transmits stream NF) also referred to as cyclic transfer.Wherein there is this following in heat exchange department 10(
Ring transmission) it is also referred to as cycling hot exchange part.Ratio B G/BF > 0.1 in heat-exchange system 1 not
Different sizes can be had with in heat-exchange device 8,9.Heat-exchange device 8 can such as meet definitely than
Rate relation BG/BF>0.1, and absolute proportion BG/BF<0.1 is applicable to heat-exchange device 9, wherein
In extreme situations it is possible that BG/BF=0 is also applied for heat-exchange device 9, do not deposit
At bulk cargo counter current flow (NF=BF).Not there is the heat of this heat-exchange device 9 of bulk cargo counter current flow
Exchange part 10 also referred to as concurrent flow heat exchange department.
For Jing Que, according to Fig. 1, heat-exchange system 1 exists two heat-exchange devices, the hottest
Switch 8 and 9.In the heat-exchange system replaced, it is possible to there is the heat exchange dress of varying number
Putting, the most up to 20 heat-exchange devices, described heat-exchange device connects collection chamber accordingly
On 17 or along bulk cargo discharge portion 16, a part for delivery line and the sender in bulk cargo feeding portion 15
To sequence on each other before and after sequentially arrange and be separated from each other.Especially, 2 to 20 heat exchange dresses
Put, 2 to 10 heat-exchange devices or 2 to 5 heat-exchange devices can each other before and after sequentially be arranged in
In heat-exchange system.
Liquid (such as water) or gas (such as air) can be used as heat-exchange fluid.
Heat-exchange device 8,9 can include tube bank in the way of described in DE10 2,004 041 375A
Formula heat exchange department (sees Fig. 8), or includes board-like heat exchange department (seeing Fig. 7), wherein bulk cargo
Transmitting between adjacent heat exchanger plates, heat transport fluid flows in heat exchanger plate.
The heat exchange department 10 of heat-exchange device 8 or 9 can have at 0.5m to 25m in the transmission direction
Length H in the range of between.Length H can between 1m and 15m, be preferably ranges between
In the range of between 1.5m and 12m.All heat exchange departments 10 of each heat-exchange device 8,9 all may be used
There is length within the range.Heat exchange department 10 can have different length H in the transmission direction.
At least one in heat exchange department 10 can have outside the scope between 0.5m and 25m
Length H.
The homogenizing of the parameter being characterized by bulk cargo can occur connecting collection chamber 17 along transmitting path
In.Therefore, the path between two adjacent heat exchange departments 10 is also referred to as bulk cargo homogenizing portion.Each other
Length 2L transmitting path between adjacent heat exchange department 10 be connected collection chamber 17, namely
The ratio L/dV of the diameter dV in bulk cargo homogenizing portion can be in the range of between 1 and 20, can be
In the range of between 2 and 15, or can be in the range of between 3 and 10.This ratio
Do not illustrate by actual proportions.
During heat-exchange system 1 operates, on the one hand bulk cargo and another aspect carrier gas are via biography
Pipeline 7 is sent to be fed to heat-exchange device 8,9.Bulk cargo and carrier gas are with the loading being up to worth 100
Amount or loading are transmitted through delivery line 7 and heat-exchange device 8,9 than μ.Load than μ at this quilt
It is defined as the ratio of the weight of bulk cargo and the weight of carrier gas.Loading can be in the scope of up to 50 than μ
In or in the range of up to 30.Carrier gas by carrier gas feed mechanism 4 with up to 50m/s
Space velocity feeding, first without bulk cargo.Space velocity v may be up to 25m/s or high
Reach 10m/s.
Heat-exchange system 1 operate during, heat transport fluid also from heat transport fluid source 13 through heat-exchange device
8 and 9 are sent to heat transport fluid output mechanism 14 or in the heat transport fluid loop having been described above
Transmitted.Bulk cargo is pneumatically transported through heat-exchange device 8,9, wherein transmits flow ratio rate
The cyclic transfer of BG/BF > 0.1 is due to the biography in the heat exchange department 10 of at least one heat-exchange device 8
Parameter is sent to select and be conditioned.In this case, pass a parameter and can be adjusted so that such as
Later heat-exchange device exists and transmits flow ratio rate BG/BF=0, in such heat-exchange device 9
Bulk cargo is the most only transmitted (concurrent flow transmission) along the flow direction of carrier gas.Or, can be
Regulation circulation in heat-exchange device 8,9 in all of heat-exchange device, namely heat-exchange system 1
Transmit.
Describe below by way of Fig. 2 and 3 and the most sequentially arrange each other and as heat in the way of Fig. 1
The replacement configuration of the layout of two heat-exchange devices 8,9 of the ingredient of exchange system 1.With above
With reference to the components and functionality that the components and functionality described in Fig. 1 is corresponding have identical reference and
No longer discuss in detail.
According in the layout of Fig. 2, heat-exchange device 8 with in the heat-exchange system 1 according to Fig. 1
Arrange just the samely, thus by heat-exchange device 8 from bottom to top vertical occur good
Bulk cargo transmission.According to Fig. 2, connect collection chamber 17(i.e. bulk cargo homogenizing portion) it is configured to two
90 ° of connectors between individual heat-exchange device 8,9.This means according in the configuration of Fig. 2, heat
Switch 9 is 90 ° with the angle γ folded by vertical direction.In heat-exchange device 9, bulk cargo by
This is essentially horizontally transmitted.γ=0 ° means that bulk cargo is transmitted against gravity direction.Therefore, exist
Heat-exchange device 8 is suitable for γ=0 °.γ=180 ° will imply that along gravity direction, namely from top
To the transmission of bottom.It is, in general, that each in heat-exchange device 8,9 may be arranged at and has Jie
In the modification of the heat exchanger 1 of the angle γ between 0 ° and 180 °.One of heat-exchange device, at root
According to the configuration of Fig. 2 being heat-exchange device 9, can have more than 10 ° and can be such as at 10 ° and 170 °
Between angle γ.For the heat-exchange device arranged of this non-vertical ground, angle γ can be between 10 °
And between 60 ° and can be between 120 ° and 170 °.
Fig. 3 illustrates the replacement configuration of this heat-exchange device 8,9, is wherein arranged in bulk cargo direction of transfer
On the angle γ of heat-exchange device 9 in downstream be 135 °.Thus, bulk cargo is in heat-exchange device 9
It is inclined by ground to transmit downwards.
Bulk cargo tilts or flatly transports through heat-exchange device to be conducive to transmitting flow ratio rate
The cyclic transfer of BG/BF > 0.1, because gravity makes in the heat exchange department 10 horizontally or diagonally arranged
Bulk cargo along gravity direction shell wall down direction guide.Carrier gas ratio is in the region of relative shell wall
The highest, thus bulk cargo is transmitted in the most preferably along the flow direction generation of carrier gas.
Fig. 4 be shown according to heat-exchange device in the configuration of Fig. 28 and 9 between the modification of transition part.
In addition to the bulk cargo feeding portion 15 of heat-exchange device 9 and the bulk cargo discharge portion 16 of heat-exchange device 8,
This transitional region also has middle bulk cargo homogenizing portion 22.Adjacent one another are for heat-exchange device 8 and 9
Heat exchange department 10 between transmit path length 2L and the diameter dV in bulk cargo homogenizing portion 22 between
Ratio L/dV for, be also suitable for 1≤L/dV≤20.L/dV can be between 2 and 15
In the range of, and can be in the range of between 3 and 10.
According in the configuration of Fig. 4, bulk cargo homogenizing portion 22 has relative to adjacent heat exchange department 10
The center delivery axis 23 arranged prejudicially of center delivery axis 24.Corresponding delivery axis 23 He
Degree of eccentricity E between 24 is expressed as E in the diagram.This degree of eccentricity E is conducive to cyclic transfer.
According to this degree of eccentricity E, between heat exchange department 10 and the bulk cargo homogenizing portion 22 of heat-exchange device 8
Bulk cargo discharge portion 16 be configured to the part of the narrow contracting taperedly in side.Correspondingly, bulk cargo homogenizing
Bulk cargo feeding portion 15 between the heat exchange department 10 of portion 22 and heat-exchange device 9 is also substantially configured to one
The tapered part widened in side.
Illustrating by bulk cargo homogenizing portion 22 according to dimensional ratios corresponding in the configuration of Fig. 5, the structure of Fig. 5
Type corresponds to the configuration of the heat-exchange device 8 and 9 according to Fig. 3 about angle γ.
By means of other dimensional parameters of Fig. 6 to 8 explanation heat-exchange device 8,9, particularly bulk cargo temperature
Degree ratio.And have to the components and functionality that the components and functionality described in 5 is corresponding with reference to Fig. 1 above
Identical reference and no longer discussing in detail.
ARA represent delivery line 18 the bulk cargo discharge portion 16 of heat-exchange device 9 exit cut
Area.AA represents the transition between the heat exchange department 10 of heat-exchange device 9 and bulk cargo discharge portion 16
Sectional area at portion.HA represents the bulk cargo discharge portion 16 of heat-exchange device 9 length in the transmission direction
Degree.AXn and AYn represents the sectional area of the heat exchange department 10 of heat-exchange device 8 and 9.Further below
Be partially used as the letter " n " of index represent at this heat-exchange device 8,9 of multiple correspondences or have right
The multiple heat exchange departments 10 answering parameter also can the most front and back be arranged.HXn and HYn represents that heat exchange fills
Put the length of the heat exchange department 10 of 8 and 9.△pXn、△pYnRepresent heat-exchange device 8 and 9
The heat exchange department 10 differential pressure on corresponding total length HXn, HYn of these heat exchange departments 10.Should
Differential pressure linearly increases in the length of heat exchange department 10, shows diagramatically as in Fig. 6.Be suitable for be
ΔpXn>ΔpYn.α Xn, α Yn represent that the heat exchange department 10 of corresponding heat-exchange device 8,9 is in warm
Heat transfer on corresponding length HXn of exchange part 10, HYn.These heat transfers are at heat-exchange device 8,9
Heat exchange department 10 length on process show diagramatically the most in figure 6.
α Xn, α Yn are rapid in the starting point of the corresponding heat exchange department 10 of heat-exchange device 8,9 in heat transfer
Increase to corresponding stationary value α1、α2, wherein it is suitable for α1>α2.Phase at heat-exchange device 8,9
The terminal of heat exchange department 10, heat transfer number α Xn, α Yn is answered again to decline.
AVn represents the connection collection chamber 17 between the heat exchange department 10 of two heat-exchange devices 8,9
Sectional area.HVn represents the length connecting collection chamber 17 along direction of transfer.AE represents that bulk cargo enters
To the sectional area at the transition part between the heat exchange department 10 of portion 15 and heat-exchange device 8.HE table
Show the bulk cargo feeding portion 15 length along direction of transfer of heat-exchange device 8.ARE represents delivery line
The sectional area of 7 porch in the bulk cargo feeding portion 15 leading to heat-exchange device 8.
ε represents the cone angle in the bulk cargo discharge portion 16 of the taperedly narrow contracting of heat-exchange device 9.δ represents
The bulk cargo widened of heat-exchange device 8 discharges into the cone angle in portion 15 taperedly.
The heat exchange department 10 of heat-exchange device 8,9 may be structured to board-like heat exchange department 10.Board-like heat
Exchange part 10 illustrates with cross section in the figure 7.
Board-like heat exchange department 10 according to Fig. 7 has multiple heat exchanger plate 24a, and bulk cargo is handed in these heat
Change and transmit between plate 24a.Heat transport fluid flows in heat exchanger plate 24a.
ATn represents the total sectional area of the heat-exchangers of the plate type 10 flow through for heat transport fluid.ASn represents
It is available for the total sectional area between the heat exchanger plate 24a that bulk cargo flows through.
T1 represents the bulk cargo temperature in delivery line 7 at the transition part to bulk cargo feeding portion 15.T2
In representing the transitional region between bulk cargo feeding portion 15 and the heat exchange department 10 of bulk cargo heat-exchange device 8
Bulk cargo temperature.
Fig. 6 illustrates such situation in the left side in bulk cargo feeding portion 15, and wherein heat transport fluid ratio is fed into
The bulk cargo heat of bulk cargo heat-exchange device 8.Due to in the heat exchange department 10 of bulk cargo heat-exchange device 8
Total bulk cargo counter current flow BG that the flow direction of carrier gas is contrary, in bulk cargo feeding portion 15 and bulk cargo warm
Ratio feeding in delivery line 7 is produced in transitional region between the heat exchange department 10 of switch 8
Bulk cargo temperature T2 that bulk cargo temperature T1 of bulk cargo is high.From lower temperature T1 to the intensification of high temperature T2 by
Ratio relatively flows through the heat exchange between bulk cargo and the heat transport fluid of heat exchange department 10 and produces.Produce temperature
Difference △ T=T2-T1.
Replacement temperature ratio in the case of being cooled down by bulk cargo heat-exchange device 8 is in figure 6 at bulk cargo
The right side in feeding portion 15 illustrates.Then, in the region of delivery line 7, there is higher bulk cargo temperature
T1, and the transition part between bulk cargo feeding portion 15 and the heat exchange department 10 of bulk cargo heat-exchange device 8
There is relatively low bulk cargo temperature T2 in place.Then, Δ T=T1-T2 is applicable to temperature difference △ T.
For there is the design of the heat-exchange system of high heat transfer efficiency, have proven to temperature below parameter
Specification the most suitable:
△ T/T1 >=1%, preferably >=3%, more preferably >=5%.
T1 is given with unit [° C] at this.
About absolute temperature difference △ T, have proven to values below scope and be particularly suitable for high heat transfer efficiency:
ΔT≥1K,ΔT≥5K,ΔT≥8K。
On the one hand, by regulation bulk cargo amount, on the other hand, by entering via pneumatic conveyor 2
Carrier gas amount, and another aspect is regulated, with regulation with bulk cargo counter current flow clearly to mechanism 3,4
The mode of the said temperature ratio of association is by means of the above-mentioned size of heat-exchange device 8,9, it is possible in advance
Determine pneumatic conveying.Additionally, such as, by be arranged in delivery line 7 to bulk cargo feeding portion 15
Transition part at region in and bulk cargo feeding portion 15 and heat exchange department 10 between transitional region in
Corresponding temperature sensor, these temperature ratio can be monitored.By means of this temperature sensor and gas
The corresponding signal of the controlling organization of dynamic transporter 2 connects, it is possible to fill corresponding bulk cargo heat exchange
Bulk cargo counter current flow in putting is controlled, thus produces given above and have high heat transfer efficiency
The temperature ratio of profit.
In transitional region between two the bulk cargo heat-exchange devices 8,9 sequentially arranged before and after each other
Also said temperature ratio can be there is.In this case, such as in this transitional region medially, example
As medially measured temperature T1 connecting in collection chamber 17, and connect collection chamber 17 and under
Temperature T2 is measured at transition part between the heat exchange department 10 of the bulk cargo heat-exchange device 9 of trip.Above
Described in delivery line 7 and in the case of the exit in bulk cargo feeding portion 15 carries out temperature survey
Content be applicable to temperature ratio △ T/T1 and △ T.
The heat exchange department 10 of heat-exchange device 8,9 is alternatively designed as having multiple heat-exchange tube
The bundled tube heat exchange department of 24.This bundled tube heat exchange department 10 illustrates with cross section in fig. 8.Respectively
Individual heat-exchange tube 24b has (referring also to Fig. 9) bulk cargo feed opening 25 and bulk cargo outlet opening 26.
The described opening leading to corresponding bulk cargo feeding portion 15 of heat-exchange tube 24 is referred to as feed opening all the time
25.The described opening leading to bulk cargo discharge portion 16 of heat-exchange tube 24 is referred to as outlet opening 26.
As according to shown in the cross section of Fig. 8, it is same that heat-exchange tube 24 is arranged in around heat exchange department 10 center
On heart circle.Heat transport fluid is directed in the inside 27 of heat exchange department 10 around heat-exchange tube 24b.
AT represents the bulk flow being available for the inside 27 that heat transport fluid flows through of bundled tube heat exchange department 10
Dynamic cross section.ASn represents all heat-exchange tube 24b's of the tube-bundle heat exchanger 10 according to Fig. 8
Global sections amasss.
For the corresponding heat exchange department 10 of heat-exchange device 8 and 9, it is suitable for
AX,AY=AS+AT。
Applicable following parameter ratio:
AT/AS ＜ 5, preferably ＜ 3, more preferably ＜ 2.AE/ARE or AA/ARA ＜ 50,
Preferably ＜ 30, and more preferably ＜ 25.AE/AX or AA/AY or AV/AX or
AV/AY < 5, preferably < 3, more preferably < 2.AY/AX ＜ 4, preferably ＜ 2.5, more
Preferably ＜ 1.5.δ in the range of between 5 ° and 90 °, preferably between 10 ° and 75 ° it
In the range of between, more preferably in the range of between 15 ° and 60 °.ε is between 0 ° and 180 °
Between, preferably in the range of between 20 ° and 150 °, more preferably between 30 ° and
In the range of between 120 °.HV, in the range of between 0.1m and 5m, is preferably ranges between
Between 0.15m and 3m, more preferably between 0.2m and 1.5m.
The corresponding heat exchange department 10 △ pX or △ pY of every meter is smaller than 10, preferably ＜ 8, more
Preferably ＜ 5.The ratio, α X/ α Y of the heat transfer between heat-exchange device 8,9 is smaller than 10, preferably
＜ 8, more preferably ＜ 5.
In the region of feed opening 25 and/or outlet opening 25, heat-exchange tube 24b has band cone angle
The taper those widened sections of β, heat-exchange tube 25,26 leads in feeding portion 15 via described taper those widened sections
And/or it is outside to lead to discharge portion 16.These taper those widened sections have in the range of between 0 ° and 180 °,
In the range of in the range of preferably between 0 ° and 120 ° and more preferably between 0 ° and 90 °
Cone angle beta.
Fig. 9 is exemplified in cyclic transfer (having the heat-exchange device 8 of the cycling hot exchange part 10) phase
Between or (there is concurrent flow heat exchange department 10 straight-through transmission of the pure bulk cargo without bulk cargo counter current flow
Heat-exchange device 9) period heat-exchange device 8 and 9 in ratio.At bulk cargo heat-exchange device 8
Bulk cargo feeding portion 15 region in and in the region of the heat exchange department 10 of heat-exchange device 8,
The clean direction of transfer of bulk cargo illustrates discontinuously with chain-dotted line in fig .9.
From delivery line 7 enter the bulk cargo in bulk cargo feeding portion 15 along clean direction of transfer (direction arrow 28),
Namely the flow direction along carrier gas passes through a part of heat-exchange tube 24b.Same exiting into
Time be connect collection chamber 17 bulk cargo discharge portion 16 after, a part of bulk cargo is contrary with clean direction of transfer
Ground flows through the heat-exchange tube 24b of the heat exchange department 10 of heat-exchange device 8, it is, form bulk cargo pair
To stream (direction arrow 29).After in counter current flow mode by heat-exchange tube 24b, bulk cargo is again
Occur direction to reverse, thus bulk cargo flows through heat-exchange device along clean direction of transfer (direction arrow 28) again
The heat-exchange tube 24b of 8.Produce cyclic transfer, wherein, owing to bulk cargo counter current flow BG is less than sender
Total bulk cargo stream BF upwards, transmits stream NF so producing along the clean of direction of transfer.Owing to this circulation passes
Send, between bulk cargo and the heat transport fluid flowing into internal 27, produce good heat transfer.
From connecting collection chamber 17, bulk cargo enters the heat-exchange tube 24b of heat-exchange device 9, wherein dissipates
Material passes through all these heat-exchange tube 24b from bottom to top (direction arrow 30).Therefore, bulk cargo
Heat-exchange device 9 it is transmitted through in the case of there is no counter current flow.In this concurrent flow transmits,
It is suitable for NF=BF.
Figure 10 illustrates another modification of heat-exchange device 8 and 9.With above with reference to Fig. 1 to 9
And referring particularly to the components and functionality that the components and functionality described in Fig. 9 is corresponding, there is identical accompanying drawing mark
Remember and no longer discuss in detail.
According in the configuration of Figure 10, multiple circulation guide plates 31 are arranged in the bulk cargo of heat-exchange device 8
In feeding portion 15 and connection collection chamber 17.Circulation guide plate 31 is configured to and clean direction of transfer F
On the contrary, the cone opened wide downwards.In the region of under shed, circulate guide plate
31 have substantially corresponding with the twice of the diameter of heat-exchange tube 24b diameter.Highlight along direction of transfer F
Each circulation guide plate 31 cross section of heat-exchange tube 24b one of be completely covered, and partly cover with
The cross section of heat-exchange tube 24b adjacent for this heat-exchange tube 24b.
Owing to these circulate guide plate 3, it is right to produce in the region of the heat-exchange tube 24b covered by them
To stream (direction arrow 29).With compared with the flowing modification in the configuration of Fig. 9, according to Figure 10
Configuration in, upper heat exchange device 9 also has the cyclic transfer of counter current flow 29.
Circulation guide plate 31 may be arranged at bulk cargo feeding portion 15, bulk cargo discharge portion 16, connects collection chamber
17 or bulk cargo homogenizing portion 22 in.Especially, circulation guide plate 31 arranges it is possible with cascade form.
Corresponding circulation guide plate 31 can relative to each other (at this laterally) skew ground and/or relative to about
The offsets in height ground of direction of transfer F is arranged.
Figure 11 illustrates another modification of heat-exchange device 8 and 9.With above with reference to Fig. 1 to 10
And have identical attached referring particularly to the components and functionality that the components and functionality described in Fig. 9 and 10 is corresponding
Figure labelling and no longer discussing in detail.
Replacing circulation guide plate 31, according in the configuration of Figure 11, the bulk cargo being configured to bicone moves
Position body 32 is arranged in the bulk cargo feeding portion 15 of heat-exchange device 8 and connects in collection chamber 17.Displacement
The cone angle of the taper those widened sections that firstly there are on direction of transfer F of body 32 is less than displacement body 32 at this
The cone angle of adjacent taper contraction flow region in the transmission direction.The maximum gauge of displacement body 32 is corresponding to root
Taper according to Figure 10 circulates the maximum gauge of guide plate 31.
Configuration according to Figure 11 also differ in that with the configuration according to Figure 10, and on the one hand heat is handed over
The bulk cargo feeding portion 15 of changing device 8 and another aspect connect the outer wall 33 of collection chamber 17 also with double
The mode of cone is formed, and the form of the cone angle of outer wall 33 is along the cone angle form following displacement body 32.As above
Face combines according to described in the circulation guide plate 31 of the configuration of Figure 10, and displacement body 32 is arranged also with cascade form
It is possible.
Figure 12 illustrates another modification of heat-exchange device 8 and 9.With above with reference to Fig. 1 to 11
And have identical attached referring particularly to Fig. 9 to the components and functionality that the components and functionality described in 11 is corresponding
Figure labelling and no longer discussing in detail.
The outer Cross section Design in bulk cargo feeding portion 15 and connection collection chamber 17 except heat-exchange device 8
Outside, correspond to the configuration according to Fig. 9 according to the configuration of Figure 12.Heat exchange at heat-exchange device 8
In transmission path before portion 10, bulk cargo feeding portion 15 has type conical bench 34, bulk cargo feeding portion 15
Cone angle from type conical bench 34 with step-like fashion increase.Connect collection chamber 17 and there are again cross section receipts
Contracting portion 35.The latter is by the bulk cargo feeding via narrow contracting portion Yu heat-exchange device 9 in bulk cargo discharge portion 16
The tapered portion of taper that the taper those widened sections in portion 15 is connected is formed.On the one hand contraction flow region is widened with another aspect
The cone angle in portion is different from each other.Contraction flow region 35 and type conical bench 34 promote the heat of heat-exchange device 8
Bulk cargo counter current flow (direction arrow 29) in the radial edges region of exchange part 10.There is cross section receive
Heat-exchange device 9 in the modification according to Figure 12 in contracting portion 35 makes again bulk cargo completely along direction of transfer stream
Cross it, the most there is not counter current flow.
Figure 13 illustrates another modification of bulk cargo heat-exchange device 8 and 9.Above with reference to Fig. 1 extremely
12 and referring particularly to Fig. 9 to the components and functionality described in 12, there is identical reference and not
Discuss in detail again.
According in the configuration of Figure 13, heat-exchange device 8 and 9 has relative to one side delivery line
7 and the center arranged prejudicially of the center delivery axis 36,37 of on the other hand delivery line 18 pass
Send axis 24.The degree of eccentricity between delivery axis 24 and 36 is depicted as E in fig. 131.Transmit
The degree of eccentricity between axis 24 and 37 is depicted as E in fig. 132.These degree of eccentricitys E1, E2
On the one hand by side taper those widened sections 38a and the another aspect in the bulk cargo feeding portion 15 of heat-exchange device 8
Caused by the side taper contraction flow region 38 in the bulk cargo discharge portion 16 of bulk cargo heat-exchange device 9.
Additionally, according in the configuration of Figure 13, with according in the configuration of Figure 4 and 5 similarly, even
Connect the center delivery axis 23 center transmission shaft relative to heat-exchange device 8 and 9 of collection chamber 17
Line 24 is eccentric.This degree of eccentricity is depicted as E3 in fig. 13.This degree of eccentricity E3Collected by connection
The lateral narrow contracting portion 39 of chamber 17 causes.
Degree of eccentricity E1To E3Can be in conjunction with existence, as according in the configuration of Figure 13, but hand in heat
Also can individualism in the modification of the layout of changing device 8 and 9.These degree of eccentricitys E1To E3Individually
Or cause bulk cargo to transport through heat-exchange device 8 and 9, such as Figure 13 with corresponding circulation ratio in combination
In by shown in direction arrow 28 and 29.
Figure 14 illustrates the modification of the heat-exchange tube 24b of the tube bank configuration of heat exchange department 10.Guide bulk cargo
Transmit route 41 along spiral or coiled type to be arranged in by the bulk cargo distribution guide plate 40 of heat-exchange tube 24b
Inside heat-exchange tube 24b.Transmitting route 41 along this helical form, bulk cargo is via the shell of heat-exchange tube 24b
Wall 42 and heat-exchange tube 24b and thus carry out good with in outside in the heat transport fluid flowed about
Thermo-contact.Similar bulk cargo distribution guide plate 40 is also disposed at the heat exchanger plate configuration of heat exchange department 10
In, in all cases bulk cargo to be directed to the wooden partition of heat exchanger plate.In this panel configuration, bulk cargo
Distribution guide plate may be structured to the fin tilted, described fin level along plate or extend the most obliquely
Fastening line arrange.Thus, the bulk cargo between heat exchanger plate can be realized and transmit the zigzag route in path.
The line particularly with annular configuration also can be installed in the bulk cargo of heat exchange department 10 transmits path
The wide screen eye silk screen of silk, it causes the further heat of bulk cargo and heat-exchange tube 24b or heat exchanger plate 24a
Contact.Corresponding distribution guide plate or silk screen be also disposed at bulk cargo feeding portion 15, bulk cargo discharge portion 16,
Connect in collection chamber 17 or bulk cargo homogenizing portion 22.
Figure 15 illustrates another modification of heat-exchange device 8 and 9.With above with reference to Fig. 1 to 14
And have identical attached referring particularly to Fig. 9 to the components and functionality that the components and functionality described in 12 is corresponding
Figure labelling and no longer discussing in detail.
According in the configuration of Figure 15, the on the one hand bulk cargo feeding portion 15 of heat-exchange device 8 and another
On the one hand collection chamber 17 is connected via additional carrier gas intake line 43,44 and carrier gas
Feed mechanism 4 fluidly connects.On the one hand intake line 43,44 leads to bulk cargo feeding portion 15 from top
In and on the other hand lead in connection collection chamber 17.When via carrier gas intake line 43,44
When loading carrier gas for bulk cargo feeding portion 15 or connection collection chamber 17, the additional of bulk cargo is occurred to follow
Ring is supported or heat transfer is supported to transmit.Or, it is possible to realize via the pipeline arranged according to pipeline 43,44
Carrier gas is from bulk cargo feeding portion 15 or from the discharge connecting collection chamber 17.It is fed or discharges
Carrier gas amount can be predefined by unshowned control valve or perforate.Corresponding intake line 43,44
Also can fluidly connect with the bulk cargo discharge portion 16 of heat-exchange device 9 or bulk cargo homogenizing portion 22.
Claims (14)
1. the heat-exchange system (1) for bulk cargo,
-there is the pneumatic conveyor (2) for bulk cargo, described pneumatic conveyor has for dissipating
Material bulk cargo feed mechanism (3) and there is the feed mechanism (4) for carrier gas,
-there is at least two bulk cargo heat-exchange device (8,9), described at least two bulk cargo heat exchange
Device is arranged in the downstream of described bulk cargo feed mechanism (3) and is respectively provided with:
--heat exchange department (10), described heat exchange department has and leads to institute for heat-exchange fluid
State the fluid feeding portion (11) in heat exchange department (10) and lead to described heat exchange department (10) outside
Fluid issuing (12),
--bulk cargo feeding portion (15),
--bulk cargo discharge portion (16),
-wherein, described bulk cargo heat-exchange device (8,9) is front and back sequentially arranged in bulk cargo each other and passes
Send in path,
Described heat-exchange system is characterised by,
-described pneumatic conveyor (2) and at least one described bulk cargo heat-exchange device (8,9) quilt
Being configured so that during pneumatic conveying, bulk cargo is led to along the flow direction of described carrier gas by clean transmission
Cross the heat exchange department (10) of corresponding bulk cargo heat-exchange device (8,9),
Bulk cargo on the flow direction of-described carrier gas transmits stream (BF) and is definitely more than and described load
Measurable bulk cargo counter current flow (BG) that the flow direction of fortune body is contrary.
Heat-exchange system the most according to claim 1, it is characterised in that described pneumatic conveying fills
Put (2) and at least one described bulk cargo heat-exchange device (8,9) be constructed such that during operation,
Bulk cargo temperature T1 in the region of the delivery line (7) before described bulk cargo feeding portion (15) and institute
State the bulk cargo temperature in the transitional region between bulk cargo feeding portion (15) and described heat exchange department (10)
T2 differs a temperature difference △ T, wherein for before described temperature difference △ T and described bulk cargo feeding portion (15)
For the ratio of described bulk cargo temperature T1 in the region of delivery line (7), it is suitable for: Δ T/T1 >=0.01.
Heat-exchange system the most according to claim 1, it is characterised in that described pneumatic conveying fills
Put (2) and at least one described bulk cargo heat-exchange device (8,9) be constructed such that during operation,
Bulk cargo temperature (T1) in the region of the delivery line (7) before described bulk cargo feeding portion (15)
And the bulk cargo in the transitional region between described bulk cargo feeding portion (15) and described heat exchange department (10)
Temperature (T2) differs a temperature difference △ T, the described temperature difference △ T between the two bulk cargo temperature (T1, T2)
It is at least 1K.
Heat-exchange system the most according to any one of claim 1 to 3, it is characterised in that extremely
A few described bulk cargo heat-exchange device (8,9) has bundled tube heat exchange department (10), described pipe
Bundle formula heat exchange department has multiple with bulk cargo feed opening (25) and bulk cargo outlet opening (26)
Heat-exchange tube (24b), described heat-exchange fluid around described heat-exchange tube (24b) from described
Fluid feeding portion (11) is to directed in the flow path of described fluid issuing (12).
Heat-exchange system the most according to claim 1, it is characterised in that for bulk cargo at least
One distribution guide plate (40) is arranged in described heat exchange department (10).
Heat-exchange system the most according to claim 1, it is characterised in that for bulk cargo at least
One circulation guide plate (31) is arranged in described bulk cargo discharge portion (16) and described bulk cargo feeding portion (15)
In at least one in.
Heat-exchange system the most according to claim 1, it is characterised in that described bulk cargo discharge portion
(16) at least one and in described bulk cargo feeding portion (15) has relative to adjacent heat exchange department
(10) the center delivery axis (23) that center delivery axis (24) is arranged prejudicially.
Heat-exchange system the most according to claim 1, it is characterised in that bulk cargo homogenizing portion (22)
It is disposed in the bulk cargo of the bulk cargo heat-exchange device (8) of the upstream of the flow direction of described carrier gas
Discharge portion (16) and be positioned at the bulk cargo heat-exchange device (9) in downstream of flow direction of described carrier gas
Bulk cargo feeding portion (15) between.
Heat-exchange system the most according to claim 1, it is characterised in that in bulk cargo heat sequentially
Transmission path between switch (8,9) includes cross-sectional constriction portion (35).
10. the method being used for the heat-exchange system (1) of bulk cargo for operation, described heat exchange series
System:
-there is the pneumatic conveyor (2) for bulk cargo, described pneumatic conveyor has for dissipating
Material bulk cargo feed mechanism (3) and there is the feed mechanism (4) for carrier gas,
-there is at least two bulk cargo heat-exchange device (8,9), described at least two bulk cargo heat exchange
Device is arranged in the downstream of described bulk cargo feed mechanism (3) and is respectively provided with:
--heat exchange department (10), described heat exchange department has and leads to institute for heat-exchange fluid
State the fluid feeding portion (11) in heat exchange department (10) and lead to described heat exchange department (10) outside
Fluid issuing (12),
--bulk cargo feeding portion (15),
--bulk cargo discharge portion (16),
-wherein, described bulk cargo heat-exchange device (8,9) is front and back sequentially arranged in bulk cargo each other and passes
Send in path,
Described method has steps of:
-bulk cargo and carrier gas be fed into described bulk cargo heat-exchange device (8,9),
-heat transport fluid is fed into the heat exchange department (10) of described bulk cargo heat-exchange device (8,9),
-bulk cargo pneumatically transported through described bulk cargo heat-exchange device (8,9),
Described method is characterised by:
-described pneumatic conveyor (2) and at least one described bulk cargo heat-exchange device (8,9) quilt
Being configured so that during pneumatic conveying, bulk cargo is led to along the flow direction of described carrier gas by clean transmission
Cross the heat exchange department (10) of corresponding bulk cargo heat-exchange device (8,9),
Bulk cargo on the flow direction of-described carrier gas transmits stream (BF) and is definitely more than and described load
Measurable bulk cargo counter current flow (BG) that the flow direction of fortune body is contrary,
-described method also has steps of:
Bulk cargo is made to circulate in bulk cargo heat-exchange device (8,9) at least one described by this way:
During pneumatic conveying, bulk cargo is transported through described bulk cargo only along the flow direction of described carrier gas
The heat exchange department (10) of heat-exchange device (8,9), dissipating on the flow direction of described carrier gas
Material transmits stream (BF) more than the bulk cargo counter current flow (BG) contrary with the flow direction of described carrier gas.
11. methods according to claim 10, it is characterised in that make bulk cargo at described carrying gas
Last bulk cargo heat-exchange device (9) on the flow direction of body transports through, so that at gas
Dynamic transmit during, bulk cargo only along the flow direction of described carrier gas be transmitted through described last
The heat exchange department (10) of bulk cargo heat-exchange device (9).
12. methods according to claim 10, it is characterised in that make bulk cargo at all of bulk cargo
Circulation in heat-exchange device (8,9).
13. methods according to claim 10, it is characterised in that bulk cargo and described carrier gas
Transmitted than μ with the loading of up to 100.
14. methods according to claim 10, it is characterised in that described carrier gas is with up to
The space velocity v of 50m/s is fed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011078948.0 | 2011-07-11 | ||
| DE102011078948.0A DE102011078948B4 (en) | 2011-07-11 | 2011-07-11 | Heat exchanger system for bulk material and method for operating such a heat exchanger system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102878828A CN102878828A (en) | 2013-01-16 |
| CN102878828B true CN102878828B (en) | 2016-12-21 |
Family
ID=47425410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210240592.5A Active CN102878828B (en) | 2011-07-11 | 2012-07-11 | For the heat-exchange system of bulk cargo with for the method operating this heat-exchange system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102878828B (en) |
| DE (1) | DE102011078948B4 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020212546A1 (en) * | 2020-10-05 | 2022-04-07 | Coperion Gmbh | Processing installation for bulk material and method for processing bulk material |
| DE102021207890A1 (en) | 2021-07-22 | 2023-01-26 | Coperion Gmbh | Device and method for pneumatically conveying powder and pneumatic conveying system with such a device |
| DE102022213928A1 (en) | 2022-12-19 | 2024-06-20 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method for operating an actuating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2550722A (en) * | 1947-07-10 | 1951-05-01 | Standard Oil Dev Co | Method of recovering solids from gases |
| CN1095156A (en) * | 1993-02-16 | 1994-11-16 | 林德股份公司 | The cooling of bulk or granular material |
| CN2206938Y (en) * | 1994-01-08 | 1995-09-06 | 李节 | Comb type revolving tube cooling machine |
| EP1580511A2 (en) * | 2004-03-24 | 2005-09-28 | Coperion Waeschle GmbH & Co. KG | Device for maintaining temperature of bulk material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1172380B (en) * | 1960-09-19 | 1964-06-18 | Joachim Nitschke Dipl Ing | Process for operating a nuclear power reactor and reactor and nuclear fuel for performing the process |
| DE2230489A1 (en) * | 1972-06-22 | 1974-01-10 | Balcke Maschbau Ag | Drying and cooling materials - esp feed to cement making rotary kiln |
| NL7703939A (en) | 1977-04-12 | 1978-10-16 | Esmil Bv | METHOD AND APPARATUS FOR HEAT EXCHANGE |
| JP3525208B2 (en) | 1995-10-09 | 2004-05-10 | 株式会社松井製作所 | Cooling device for high temperature powder |
| DE102009014786A1 (en) * | 2008-08-18 | 2010-02-25 | Coperion Gmbh | Processing plant for bulk material |
-
2011
- 2011-07-11 DE DE102011078948.0A patent/DE102011078948B4/en active Active
-
2012
- 2012-07-11 CN CN201210240592.5A patent/CN102878828B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2550722A (en) * | 1947-07-10 | 1951-05-01 | Standard Oil Dev Co | Method of recovering solids from gases |
| CN1095156A (en) * | 1993-02-16 | 1994-11-16 | 林德股份公司 | The cooling of bulk or granular material |
| CN2206938Y (en) * | 1994-01-08 | 1995-09-06 | 李节 | Comb type revolving tube cooling machine |
| EP1580511A2 (en) * | 2004-03-24 | 2005-09-28 | Coperion Waeschle GmbH & Co. KG | Device for maintaining temperature of bulk material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102878828A (en) | 2013-01-16 |
| DE102011078948A1 (en) | 2013-01-17 |
| DE102011078948B4 (en) | 2014-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102878828B (en) | For the heat-exchange system of bulk cargo with for the method operating this heat-exchange system | |
| CN101627275A (en) | The solid material distributor that is used to the equipment that is blown into, blast furnace etc. | |
| CN102582064A (en) | Apparatus and method of producing plastics material containers | |
| CN109269333A (en) | Supply loop, industrial equipment and the method for running them of heat exchange medium for customer | |
| CN201334256Y (en) | Vertical vibrating conveyer | |
| CN104607112A (en) | Multistage enhanced fixed bed reactor and use method thereof | |
| EP3711849A1 (en) | Feed gas feeding system for propylene ammoxidation reactor | |
| CN103380348A (en) | Device for cooling a pourable or liquid product | |
| CN104640463A (en) | Flow dryer and flow drying process for drying a tobacco material | |
| CN210385768U (en) | Pill control system of pill dropping machine | |
| CN210212182U (en) | Air-cooled fresh and alive aquatic products transport vechicle | |
| CN106660650B (en) | A method of for effectively emptying the system with liquid product | |
| CN104374213B (en) | Heat exchange device for carrying out heat exchange on solid hot material | |
| CN101715423A (en) | But fluidisation material distribution device | |
| CN101257807B (en) | Method for adjusting a water temperature and a pasteurisation tunnel | |
| CN209455674U (en) | A kind of powder material Pneumatic conveyer | |
| US3319349A (en) | Heat exchange apparatus for carrying out chemical and physical reactions | |
| EP2984432B1 (en) | Gas slide heat exchanger | |
| CN109665323A (en) | It is a kind of to do the defeated ice conveying system of carrier with water at low temperature | |
| CN113651111A (en) | PTA powder high-temperature closed pipeline integrated feeding equipment and feeding process | |
| CN103105067B (en) | Granular material suspension heat exchange device and granular material heat-exchange system | |
| CN113149487A (en) | Gypsum calcining device and calcining system | |
| CN2905205Y (en) | Tubular type continuous reactor | |
| CN215598126U (en) | Waste heat recycling device and chemical production system | |
| CN208875352U (en) | Vermicelli processing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |