CN206321093U - A kind of inner fin double pipe heat exchanger and heat-exchange system - Google Patents
A kind of inner fin double pipe heat exchanger and heat-exchange system Download PDFInfo
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- CN206321093U CN206321093U CN201621230147.0U CN201621230147U CN206321093U CN 206321093 U CN206321093 U CN 206321093U CN 201621230147 U CN201621230147 U CN 201621230147U CN 206321093 U CN206321093 U CN 206321093U
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- inner fin
- heat
- heat exchanger
- pipe
- end socket
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Abstract
The utility model discloses a kind of inner fin double pipe heat exchanger, including：Heat exchanger cylinder and inner fin sleeve pipe heat-transfer pipe；Heat exchanger cylinder two ends are sealed by the first end socket, the second end socket.It is provided with first end socket on material outlet, the second end socket and is provided with material inlet.Inner fin sleeve pipe heat-transfer pipe is arranged in heat exchanger cylinder, including Outer Tube and interior conduit, and interior conduit sets some fins.The top of interior conduit is communicated to material outlet, and bottom is communicated to material inlet, and Outer Tube is communicated with heat transfer medium import and heat transfer medium outlet.The invention also discloses a kind of inner fin casing type heat exchanging system, including：A total waste pipe is additionally provided with multiple inner fin double pipe heat exchangers, the charging header for being provided with a combined feed mouthful and the discharging header for being provided with a total discharging opening, charging header.The probability excessively and caused by the thermal stress in start and stop stage leaked by heat-transfer pipe can be reduced using the inner fin double pipe heat exchanger and heat-exchange system, waste discharge efficiency is improved.
Description
Technical field
The utility model is related to the technical field of production of polysilicon and rectification and purification, more particularly to a kind of inner fin bushing type
Heat exchanger and heat-exchange system.
Background technology
Rectification zone needs trichlorosilane carrying out rectification and purification in production of polysilicon, is directed to using pot outside reboiler
The auxiliary steam of stove is by the technological process of the liquid material heating evaporation at the bottom of rectifying column containing trichlorosilane.Currently generally using fixation
The shell-and-tube tubular heat exchanger of tube sheet as the reboiler in above-mentioned technological process, and this shell-and-tube tubular heat exchanger have as
Under common shortcoming：
First, the heat-transfer pipe specification of the shell-and-tube tubular heat exchanger is smaller and quantity is general relatively more, it is reachable hundreds of
To thousands of.The number of heat-transfer pipe is more, and the possibility leaked caused by heat-transfer pipe and panel weld damage is bigger.Let out
Leakage will make it that material trichlorosilane can generate hydrochloric acid and silica after being mixed with steam generation.Wherein, the hydrochloric acid meeting of generation
Cause strong corrosion to equipment, the silica dioxide granule of generation can clogging heat exchanger so that heat exchanger can not work.Hair
The maintenance cost of heat exchanger is worth in itself much larger than equipment after raw leakage, and is once leaked, and whole rectification process must enter
Row is shut down, and is stopped over job schedule, is brought about great losses.
Second, the shell-and-tube tubular heat exchanger open stop phase, because heat-transfer pipe and cylinder rate temperature change not
Together, instantaneous thermal stress can be produced, the generation of thermal stress is also to cause heat-transfer pipe etc. to damage to cause an important original of leakage
Cause.
The content of the invention
In view of the deficiencies in the prior art, the purpose of this utility model be provide a kind of inner fin double pipe heat exchanger and
A kind of inner fin casing type heat exchanging system, the structure for extending fin by using the interior conduit in bushing type heat-transfer pipe is applied to change
Solved the above problems in hot device.
To achieve these goals, the utility model employs following technical scheme：
A kind of inner fin double pipe heat exchanger, it includes：Heat exchanger cylinder, the top of the heat exchanger cylinder is by the first envelope
Head sealing, bottom is sealed by the second end socket；It is provided with first end socket on material outlet, second end socket and is provided with thing
Expect import；Inner fin sleeve pipe heat-transfer pipe, the inner fin sleeve pipe heat-transfer pipe is arranged in the heat exchanger cylinder, the inner fin
Sleeve pipe heat-transfer pipe includes Outer Tube and interior conduit, and the inwall or outer wall in said inner tube road are provided with some fins；Said inner tube road
Top be communicated to the material outlet, bottom is communicated to the material inlet；Heat transfer is communicated with the tube wall of the Outer Tube
Medium entrance and heat transfer medium outlet, the heat transfer medium import are located at the top of the heat transfer medium outlet.
Preferably, waste discharge mouth is additionally provided with second end socket, the waste material for discharging the heat exchanger cylinder.
Preferably, the straight side length of second end socket is more than the straight side length of first end socket.
Preferably, the top of first end socket and the heat exchanger cylinder is tightly connected by the first tube sheet, and described
One tube sheet is additionally operable to fix the top of the inner fin sleeve pipe heat-transfer pipe；The bottom of second end socket and the heat exchanger cylinder
It is tightly connected by the second tube sheet, second tube sheet is additionally operable to fix the bottom of the inner fin sleeve pipe heat-transfer pipe.
Preferably, the quantity of the inner fin sleeve pipe heat-transfer pipe has multiple, and multiple inner fin sleeve pipe heat-transfer pipes are with flat
Row is arranged on the heat exchanger inner barrel to parallel arranged in the mode in the heat exchanger barrel lenght direction.
Preferably, some transmission pipelines, some transmission are additionally provided between multiple inner fin sleeve pipe heat-transfer pipes
Pipeline is used to the Outer Tube of multiple inner fin sleeve pipe heat-transfer pipes being interconnected.
The utility model additionally provides a kind of inner fin casing type heat exchanging system, including：Multiple described inner fin sleeve pipes
Formula heat exchanger；Feed and a combined feed mouthful is provided with header, the charging header, the charging header passes through multiple feed pipes
The material inlet of multiple described inner fin double pipe heat exchangers is connected to correspondingly；Discharge header, the discharging header
On be provided with a total discharging opening, the discharging header is connected to multiple described interior wings correspondingly by multiple discharge nozzles
The material outlet of piece double pipe heat exchanger.
Preferably, a total waste pipe, multiple described inner fin casing type heat exchangings are additionally provided with the charging header
Device shares total waste pipe discharge waste material.
Compared to prior art, the inner fin double pipe heat exchanger that the utility model embodiment is provided and inner fin bushing type
Heat-exchange system, by extending fin in sleeve pipe inner tubal wall, increases heating surface so that under the identical heat exchange amount compared with prior art
The heat-transfer pipe quantity that shell-and-tube tubular heat exchanger is used is less, and the inner fin double pipe heat exchanger can be avoided because of heat-transfer pipe
It is different from the rate temperature change of cylinder and produce instantaneous thermal stress damage heat-transfer pipe so that what heat-transfer pipe was leaked
Probability is reduced.
Brief description of the drawings
Fig. 1 is the structural representation for the inner fin double pipe heat exchanger that the utility model is provided；
Fig. 2 is the horizontal cross-section structure diagram for the inner fin double pipe heat exchanger that the utility model is provided；
Fig. 3 is the structural representation for the inner fin casing type heat exchanging system that the utility model is provided.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings to the utility model
Embodiment be described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Institute in accompanying drawing
Show what is be merely exemplary with the embodiment of the present utility model described with reference to the accompanying drawings, and the utility model is not limited to this
A little embodiments.
Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings
It illustrate only and according to scheme of the present utility model closely related structure and/or process step, and eliminate and this practicality
The little other details of new relationship.
With reference to Fig. 1 and Fig. 2, the present embodiment provide firstly a kind of inner fin double pipe heat exchanger 100, including heat exchanger cylinder
Body 1 and inner fin sleeve pipe heat-transfer pipe 2.Wherein, the top of the heat exchanger cylinder 1 is sealed by the first end socket 11, and bottom is by second
End socket 12 is sealed, and is provided with first end socket 11 on material outlet 13, second end socket 12 and is provided with material inlet 14.
The inner fin sleeve pipe heat-transfer pipe 2 is arranged in the heat exchanger cylinder 1, and the inner fin sleeve pipe heat-transfer pipe 2 includes Outer Tube
21 and interior conduit 22, the inwall or outer wall in said inner tube road 22 are provided with some fin 22a；The top connection in said inner tube road 22
To the material outlet 13, bottom is communicated to the material inlet 14.Heat transfer medium is communicated with the tube wall of the Outer Tube 21
Import 23 and heat transfer medium outlet 24, the heat transfer medium import 23 are located at the top of the heat transfer medium outlet 24.By adopting
With the inner fin double pipe heat exchanger 100 of said structure, it is possible to increase heat exchange efficiency, the situation of identical heat exchange amount is being obtained
Under, the heat-transfer pipe of heat exchanger setting compared with prior art is less, and the probability leaked is just smaller.
Further, waste discharge mouth 3 is additionally provided with second end socket 12, for discharging the useless of the heat exchanger cylinder 1
Material.Discharged by setting waste discharge mouth will to be deposited on the bottom of the second end socket 12 containing more polymictic waste liquid, improve the product of product
Matter.
Further, the straight side length of second end socket 12 is more than the straight side length of first end socket 11.By increasing
Plus second the impurity that is more beneficial in material of straight side length of end socket 12 deposit to bottom so that waste discharge is better.
Further, the top of first end socket 11 and the heat exchanger cylinder 1 is tightly connected by the first tube sheet 15,
First tube sheet 15 is additionally operable to fix the top of the inner fin sleeve pipe heat-transfer pipe 2；Second end socket 12 and the heat exchange
The bottom of device cylinder 1 is tightly connected by the second tube sheet 16, and second tube sheet 16 is additionally operable to fix the inner fin sleeve pipe biography
The bottom of heat pipe 2.
Further, the quantity of the inner fin sleeve pipe heat-transfer pipe 2 has multiple, multiple inner fin sleeve pipe heat-transfer pipes 2
In the way of parallel to the length direction of heat exchanger cylinder 1, it is arranged on inside the heat exchanger cylinder 1 to parallel arranged.Profit
Space availability ratio can be preferably improved with above-mentioned set-up mode, so as to improve heat exchange efficiency.
Further, some transmission pipelines 25 are additionally provided between multiple inner fin sleeve pipe heat-transfer pipes 2, it is described some
Transmission pipeline 25 is used to the Outer Tube 21 of multiple inner fin sleeve pipe heat-transfer pipes 2 being interconnected.Pass through above-mentioned transfer tube
Road 25, can allow heat transfer medium to be transmitted between each inner fin sleeve pipe heat-transfer pipe 2 so that heat transfer medium is more evenly distributed, and carries
High heat exchange efficiency.
Fig. 2 shows the cross-sectional view for the inner fin double pipe heat exchanger that the utility model is provided, it can be seen that
Fig. 2 is above-mentioned inner fin double pipe heat exchanger 100 parallel to the direction of the first tube sheet 15 and along the place plane of heat transfer medium import 23
Sectional view, multiple inner fin sleeve pipe heat-transfer pipes 2 are described to be arranged on parallel to the length direction of heat exchanger cylinder 1
The inside of heat exchanger cylinder 1；The inner fin sleeve pipe heat-transfer pipe 2 includes Outer Tube 21 and interior conduit 22.In the present embodiment, it is interior
The inwall of pipeline 22 is provided with some fin 22a.Each heat transfer medium of heat transfer medium from the inner fin sleeve pipe heat-transfer pipe 2 enters
Mouth 23 is passed through, by interlayer of the transmission pipeline 25 between the Outer Tube 21 and interior conduit 22 of each inner fin sleeve pipe heat-transfer pipe 2
Uniform transmission heat transfer medium.
In the present embodiment, each inner fin sleeve pipe is passed at material inlet 14 as the liquid trichlorosilane of material
In the interior conduit 22 of heat-transfer pipe 2, after enough liquid trichlorosilanes are passed through, the liquid level of each inner fin sleeve pipe heat-transfer pipe 2
It is increased to close at the first tube sheet 15, is now passed through as the high-temperature steam of heat transfer medium from each heat transfer medium import 23 to interior
In interlayer between the Outer Tube 21 and interior conduit 22 of fin sleeve pipe heat-transfer pipe 2, and it is equal by the transmission channel 25 between Outer Tube
Even distribution.High-temperature steam transfers heat to the material of the flowing of interior conduit 22, then steam exothermic condensation formation lime set, by weight
Corresponding heat transfer medium outlet 24 flows out power from below.And liquid trichlorosilane relies on the fin 22a for including extended surface to exist
Interior heating surface, absorbs after enough heats, comes to life, and evaporation forms gas rising, and interior wing is left from material outlet 13
Piece double pipe heat exchanger.
With reference to Fig. 3, the present embodiment additionally provides a kind of inner fin casing type heat exchanging system, the inner fin casing type heat exchanging
System includes：Multiple described inner fin double pipe heat exchangers 100；Feed and be provided with header 200, the charging header 200
One combined feed mouthful 201, the charging header 200 by multiple feed pipes 202 be connected to correspondingly it is multiple it is described in
The material inlet 14 of fin double pipe heat exchanger 100；Discharged header 300, and a total discharging is provided with the discharging header 300
Mouth 301, the discharging header 300 is connected to multiple described inner fin bushing types correspondingly by multiple discharge nozzles 302
The material outlet 13 of heat exchanger 100.Distributing and receive material unitedly by combined feed mouthful 201 and total discharging opening 301 can be preferably
Process efficiency is improved, and the material point in multiple inner fin double pipe heat exchangers 100 can be made using above-mentioned header structure
With uniform.
Further, a total waste pipe 303, multiple described inner fin sets are additionally provided with the charging header 200
Pipe heat exchanger 100 shares the discharge of total waste pipe 303 waste material.
In the inner fin casing type heat exchanging system that the present embodiment is provided, material is passed through by combined feed mouthful 201, is joined through charging
Material is assigned in multiple inner fin double pipe heat exchangers 100 by case 200 correspondingly by multiple feed pipes 202, each
The material evaporation formation gas of heat exchange is completed in inner fin double pipe heat exchanger 100, discharging is pooled to by multiple discharge nozzles 302
In header 300, finally discharged from total discharging opening 301.
Inner fin double pipe heat exchanger and inner fin casing type heat exchanging system that the utility model embodiment is provided, by adopting
Use inner fin sleeve type structure so that the heat transfer that the shell-and-tube tubular heat exchanger under identical heat exchange amount compared with prior art is used
Pipe quantity is less, and the inner fin double pipe heat exchanger 100 can be avoided because heat-transfer pipe is different from the rate temperature change of cylinder
And the instantaneous thermal stress damage heat-transfer pipe produced, so as to reduce the probability that heat-transfer pipe is leaked.Additionally by increasing by the second envelope
The material that first 12 straight side length makes salt higher is deposited on bottom, can make using the regular efficiency for discharging waste liquid of waste pipe more
It is high.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, such as described inner fin sleeve pipe
Can being modified according to actual needs around line mode for formula heat exchanger, for these changes and retouching, also should be regarded as the application
Protection domain.
Claims (8)
1. a kind of inner fin double pipe heat exchanger, it is characterised in that including：
Heat exchanger cylinder (1), the top of the heat exchanger cylinder (1) is sealed by the first end socket (11), and bottom is by the second end socket
(12) seal；It is provided with first end socket (11) and is provided with material on material outlet (13), second end socket (12) and enters
Mouth (14)；
Inner fin sleeve pipe heat-transfer pipe (2), the inner fin sleeve pipe heat-transfer pipe (2) is arranged in the heat exchanger cylinder (1), described
Inner fin sleeve pipe heat-transfer pipe (2) includes Outer Tube (21) and interior conduit (22), and the inwall or outer wall of said inner tube road (22) are set
There are some fins (22a)；The top in said inner tube road (22) is communicated to the material outlet (13), and bottom is communicated to the material
Import (14)；Heat transfer medium import (23) and heat transfer medium outlet (24) are communicated with the tube wall of the Outer Tube (21), it is described
Heat transfer medium import (23) is located at the top of the heat transfer medium outlet (24).
2. inner fin double pipe heat exchanger according to claim 1, it is characterised in that also set on second end socket (12)
Waste discharge mouth (3) is equipped with, the waste material for discharging the heat exchanger cylinder (1).
3. inner fin double pipe heat exchanger according to claim 1, it is characterised in that the straight flange of second end socket (12)
Highly it is more than the straight side length of first end socket (11).
4. inner fin double pipe heat exchanger according to claim 1, it is characterised in that first end socket (11) with it is described
The top of heat exchanger cylinder (1) is tightly connected by the first tube sheet (15), and first tube sheet (15) is additionally operable to fix in described
The top of fin sleeve pipe heat-transfer pipe (2)；The bottom of second end socket (12) and the heat exchanger cylinder (1) passes through the second tube sheet
(16) it is tightly connected, second tube sheet (16) is additionally operable to fix the bottom of the inner fin sleeve pipe heat-transfer pipe (2).
5. according to any described inner fin double pipe heat exchangers of claim 1-4, it is characterised in that the inner fin sleeve pipe is passed
The quantity of heat pipe (2) has multiple, and multiple inner fin sleeve pipe heat-transfer pipes (2) are with parallel to heat exchanger cylinder (1) length
The mode in direction, is arranged on the heat exchanger cylinder (1) to parallel arranged internal.
6. inner fin double pipe heat exchanger according to claim 5, it is characterised in that multiple inner fin sleeve pipe heat transfers
Some transmission pipelines (25) are additionally provided between pipe (2), some transmission pipelines (25) are used for multiple inner fin sets
The Outer Tube (21) of pipe heat-transfer pipe (2) is interconnected.
7. a kind of inner fin casing type heat exchanging system, it is characterised in that including：
Multiple inner fin double pipe heat exchangers (100) as described in claim 1-6；
Feed and be provided with a combined feed mouthful (201), the charging header on header (200), the charging header (200)
(200) it is connected to the thing of multiple described inner fin double pipe heat exchangers (100) correspondingly by multiple feed pipes (202)
Expect import (14)；
Discharged header (300), and a total discharging opening (301), the discharging header are provided with the discharging header (300)
(300) it is connected to the thing of multiple described inner fin double pipe heat exchangers (100) correspondingly by multiple discharge nozzles (302)
Material outlet (13).
8. inner fin casing type heat exchanging system according to claim 7, it is characterised in that on the charging header (200)
A total waste pipe (303) is additionally provided with, multiple described inner fin double pipe heat exchangers (100) share total waste pipe
(303) waste material is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230147.0U CN206321093U (en) | 2016-11-16 | 2016-11-16 | A kind of inner fin double pipe heat exchanger and heat-exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621230147.0U CN206321093U (en) | 2016-11-16 | 2016-11-16 | A kind of inner fin double pipe heat exchanger and heat-exchange system |
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| Publication Number | Publication Date |
|---|---|
| CN206321093U true CN206321093U (en) | 2017-07-11 |
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ID=59264256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621230147.0U Active CN206321093U (en) | 2016-11-16 | 2016-11-16 | A kind of inner fin double pipe heat exchanger and heat-exchange system |
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| CN (1) | CN206321093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387117A (en) * | 2018-03-16 | 2018-08-10 | 华南理工大学 | Double convection current pipe heat exchangers inside and outside one kind |
-
2016
- 2016-11-16 CN CN201621230147.0U patent/CN206321093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387117A (en) * | 2018-03-16 | 2018-08-10 | 华南理工大学 | Double convection current pipe heat exchangers inside and outside one kind |
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