CN207247973U - Embedded pipe type heat transfer pipe and the flash heater being made from it - Google Patents
Embedded pipe type heat transfer pipe and the flash heater being made from it Download PDFInfo
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- CN207247973U CN207247973U CN201721100103.0U CN201721100103U CN207247973U CN 207247973 U CN207247973 U CN 207247973U CN 201721100103 U CN201721100103 U CN 201721100103U CN 207247973 U CN207247973 U CN 207247973U
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- tube
- embedded
- heat exchanger
- short tube
- heat transfer
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Abstract
The utility model discloses a kind of embedded pipe type heat transfer pipe and the flash heater being made from it, it is on the tube wall of heat exchanger tube, along the cross-sectional direction of heat exchanger tube, is provided with the short tube that both ends are embedded in tube wall；The cavity perforation of the pipe outer wall that exchanges heat and embedded short tube inner wall, forms the heat medium cavity that carrying heating agent passes through；The inner wall of heat exchanger tube and the cavity of the outer wall of embedded short tube have been formed through material cavity.The improved embedded pipe type heat transfer pipe structure of the utility model, increases heat transfer area, no heat transfer dead angle and remaining dead angle, and gas phase heating agent and liquid phase heating agent are all applicable in very much.Staggered embedded short tube flows material variable-speed, flows to tortuous change, and violent shearing and disturbance are generated to material, enhance heat exchanger tube heat transfer efficiency, the uniformity coefficient of material is improved, it is especially extremely beneficial to two logistics after flash distillation, various flash heaters can be widely used in.
Description
Technical field
The utility model belongs to heat exchanger apparatus technical field, and in particular to a kind of embedded pipe type heat transfer pipe and is made from it
Flash heater.
Background technology
Many chemical reaction processes can all use vacuum flashing technique, to remove some low-molecular materials, form gas-liquid
Two phase flow；However as the removing of low-molecular material, the temperature of some materials can significantly decline, its viscosity also has obvious at the same time
Rise.For the polycondensation reaction of some polymer materials, above-mentioned phenomenon is particularly evident, to ensure the reaction process temperature of material, needs
Flash distillation contracting heater is utilized to supplement substantial amounts of heat for it.
Traditional flash heater, the particularly flash heater for viscosity higher material, most of is heat exchanger shell
Journey walks material, and tube side walks heating agent, and material, there are certain lateral flow, can reduce heat transfer film thickness, increase passes with heat exchanger tube
The thermal efficiency；But there is Railway Project for the structure：1. since shell side circulation area is larger, material entirety flow velocity is slower, heat transfer
Efficiency is still relatively low；2. shell side dead angle is more, Flow of Goods and Materials uniformity is poor, easily influences product quality；3. shell side should not clean,
The maintenance processing of not cheap equipment.
Lead to the flash heater of material in a small number of heat exchanger tubes, since material is axially flowed along heat exchanger tube, heat-transfer film is thicker,
Heat production is less efficient.Some producers can use special-shaped pipeline to increase heat transfer efficiency, such as elliptical tube, heat transfer area be according to
Quantity by increasing heat exchanger tube, this is all unfavorable for the biphase gas and liquid flow of highly viscous fluid flash distillation.
Utility model content
The application is aiming at a series of problems of the dehydration of high-viscosity polymer, a kind of embedded pipe type heat transfer pipe of research and development
And the efficient flash heater being made from it, to solve, highly viscous fluid heat transfer efficiency in flash-evaporation dehydration is low, viscosimeter temperature
Spend the problems such as uneven.
Technical solution is used by the utility model：On the tube wall of heat exchanger tube, along the cross-sectional direction of heat exchanger tube, if
It is equipped with the short tube of both ends insertion tube wall；The cavity perforation of the pipe outer wall that exchanges heat and embedded short tube inner wall, forms what carrying heating agent passed through
Heat medium cavity；The inner wall of heat exchanger tube and the cavity of the outer wall of embedded short tube have been formed through material cavity.
In traditional heat exchangers, its inner wall cavity being made of heat exchanger tube is the transfer passage of material, that is, corresponds to this practicality
New material cavity described above；Heat exchange pipe outer wall and the transfer passage that the cavity that its outer closures environment is formed is heating agent,
Correspond to the utility model heat medium cavity described above.
For in technique described above scheme, in the case of preferable, along the cross-sectional direction of heat exchanger tube, adjacent two layers
Short tube, its setting direction are not parallel；
The arrangement mode of this injustice line, is conducive to increase fluid loop, makes material in pipe in course of conveying, it becomes
Speed flowing, flows to tortuous change, violent shearing and disturbance is generated to material, heat exchanger tube heat transfer efficiency is enhanced, improves
The uniformity coefficient of material.
For in technique described above scheme, in the case of preferable, along the cross-sectional direction of heat exchanger tube, adjacent two layers
Short tube, its setting direction are mutually perpendicular to；This arrangement mode for being mutually perpendicular to formula, compared to the arrangement of previously described uneven line
For mode, the shearing and disturbance produced to material is maximumlly enhanced.
For in technique described above scheme, in the case of preferable, along the cross-sectional direction of heat exchanger tube, described in every layer
Short tube quantity is at least one；The spacing of adjacent two layers short tube has no particular/special requirement, can be according to the viscosity of different materials, stream
The parameter requests such as flux, flash distillation amount, heat exchange amount and resistance are adjusted.Such as：For the big material of viscosity, adjacent two layers short tube
Spacing can set larger.
For in technique described above scheme, in the case of preferable, in cross-sectional direction, it is every layer described in short tube number
Parallel to each other between short tube and be symmetrical arranged when measuring more than one, it is optimal that short tube interstitial spaces area is roughly the same, is so set
Optimal uniformity and optimal shear effect can be obtained by putting.
For in technique described above scheme, in the case of preferable, in cross-sectional direction, it is every layer described in short tube number
Measure for 1 when；Short tube outside diameter is 0.2~0.7 times of heat exchange bore；When short tube outside diameter and the bigger ratio of heat exchange bore, fit
Used in the case of for resistance drop to be larger, viscosity is relatively low.
For in technique described above scheme, in the case of preferable, in cross-sectional direction, it is every layer described in short tube number
Measure for 2 when；Each short tube outside diameter is 0.15~0.3 times of heat exchange bore；In the case of being more highly preferred to, the centre distance of two short tubes is
1.1~2.5 times of short tube outside diameter；That is, short tube quantity can set 2 or more than 2 in every layer, when short tube quantity for 2 with
When upper, generally meant that short tube quantity was more, heat transfer area is bigger；But those skilled in the art are similarly it is contemplated that when short
When more than pipe quantity to a certain extent, short tube outside diameter is necessarily too small, and the rigidity and intensity of short tube can all reduce, and is not suitable for high shear
Operating mode, and processing cost can increase substantially, therefore, the selection to short tube quantity according to the species of material to be conveyed, it is necessary to do
With adjustment；When short tube quantity sets more than two in every layer, it is commonly available to that fluid viscosity is relatively low, flow velocity is relatively slow, fluid
The less situation of impact force.
Said structure used by the utility model, that is, exchange heat pipe and be improved, heat-transfer area is increased after embedded short tube
Product, the heating agent of the interior flowing of heat medium cavity pass through the material of pipe outer wall and embedded short tube inner wall into material cavity that exchanges heat and transmit heat.By
It is penetrating in both ends in embedded short tube, easy to the flowing of heating agent, no heat transfer dead angle and remaining dead angle, to gas phase heating agent and liquid phase heating agent
All it is applicable in very much.It is staggered while material in material cavity axially flows under the promotion of upstream pressure along heat exchanger tube
Embedded short tube flows material variable-speed, flows to tortuous change, violent shearing and disturbance are generated to material, enhances heat exchanger tube
Heat transfer efficiency, improves the uniformity coefficient of material, especially extremely beneficial to two logistics after flash distillation.
The utility model further aspect is that a kind of sudden strain of a muscle for including insertion pipe type heat transfer pipe structure described above of protection
Steam heater.Specifically, the flash heater is exactly the tubulation being processed into using the heat exchanger tube of embedded short tube described above
Formula, coil pipe type heater, can also be processed into the heater of single hose.
Embedded short tube connection mode is the common knowledge of those skilled in the art, under normal circumstances, frequently with welding or swollen
Connect.
The beneficial effects of the utility model are：
A. there is larger circulation diameter, be suitable for the flow demand of two phase flow；
B. there is larger heat exchange area, enough heats can be replenished in time；
C. there is no flow blind angle in the flow process of material and heating agent, dead angle of not conducting heat, it is ensured that the temperature of each point is uniform；
D. there is higher shearing force, the heat transfer of material can be strengthened, improve heat transfer efficiency；
E. it is capable of the quality of homogenising polymer, there is static mixing；
F. it is used for the heat exchanger of heavy polymer, when fouling and clogging occurs because of long-time service, easy to calcine
Cleaning.
Brief description of the drawings
Fig. 1：Single embedded short tube heat exchanger tube cross-sectional view；
Fig. 2：Single embedded short tube heat exchanger tube side sectional view；
Fig. 3：Double joint is embedded in short tube heat exchanger tube cross-sectional view；
Fig. 4：Double joint is embedded in short tube heat exchanger tube side sectional view；
Wherein：1. heat medium cavity, 2. material cavities, 3. heat exchanger tubes, 4. insertion short tubes, D. heat exchange bores, d. insertion short tubes
Outside diameter, A. insertion stub lengths, B. double joints are embedded in the centre distance of short tube.
Embodiment
Following non-limiting examples can make those of ordinary skill in the art that the utility model be more fully understood, but
The utility model is not limited in any way.
Below by taking Fig. 1~4 as an example, the concrete methods of realizing of the present apparatus is sketched.
Embodiment 1
The utility model is improved traditional common heat exchange tube structure, constitutes embedded pipe type heat transfer pipe structure, can
To be widely used in various flash heaters.The flash heater can be shell and tube, coil pipe type heater, can also process
Into the heater of single hose.
According to parameter requests such as the viscosity of different materials, circulation, flash distillation amount, heat exchange amount and resistances, heat exchanger tube 3 it is every
A embedded unit can use the double joint insertion short tube 4 (see Fig. 3) of single embedded short tube 4 (see Fig. 1) and side by side parallel arrangement no
Same combination.
Specific embedded short tube type heat exchange tube structure refers to, on the tube wall of heat exchanger tube 3, along the cross section side of heat exchanger tube 3
To, be provided with both ends insertion tube wall short tube；Mode generally frequently with welding or expanded joint is embedded in short tube 4, after being embedded in short tube 4
Heat exchanger tube increases heat transfer area, in heat medium cavity 1 heating agent of flowing by 3 outer wall of heat exchanger tube and embedded 4 inner wall of short tube to
Material in material cavity 2 transmits heat.
The cavity perforation of 4 inner wall of 3 outer wall of heat exchanger tube and embedded short tube, forms the heat medium cavity 1 that carrying heating agent passes through；Heat exchanger tube
The cavity of 3 inner wall and the outer wall of embedded short tube 4 has been formed through material cavity 2.Since both ends are penetrating in embedded short tube 4, it is easy to
The flowing of heating agent, no heat transfer dead angle and remaining dead angle, are all applicable in gas phase heating agent and liquid phase heating agent very much.
Along the cross-sectional direction of heat exchanger tube 3, the short tube of adjacent two layers, its setting direction is mutually perpendicular to；Thing in material cavity 2
While material flows under the promotion of upstream pressure along heat exchanger tube 3 is axial, staggered embedded short tube 4 makes material variable-speed stream
It is dynamic, tortuous change is flowed to, violent shearing and disturbance are generated to material, 3 heat transfer efficiency of heat exchanger tube is enhanced, improves material
Uniformity coefficient, it is especially extremely beneficial to two logistics after flash distillation.
For single embedded short tube heat exchanger tube, d=0.2~0.7D, A=1.1~2.5d；
It is parallel to each other between the short tube in cross-sectional direction, every layer and symmetrically set during the short tube quantity more than one
Put.For double joint insertion short tube heat exchanger tube, d=0.15~0.3D, A=1.1~2.5d, B=1.1~2.5d；
In Fig. 1~4:D is 3 internal diameter of heat exchanger tube, and d is the outside diameter of embedded pipe, and A is embedded unit length, and B is in embedded unit
Double joint is embedded in the centre distance of short tube.
Embedded short tube type heat exchange tube structure described in the utility model, its key technical indexes：Use temperature range 100~
350℃；Use 1~10MPa of pressure limit；0.1~500Pa.S of fluid viscosity ranges.
Claims (10)
- A kind of 1. embedded pipe type heat transfer pipe, it is characterised in that：It is made of heat exchanger tube and embedded short tube；In the pipe of the heat exchanger tube On wall, along the cross-sectional direction of heat exchanger tube, the short tube that both ends are embedded in tube wall is provided with；The pipe outer wall that exchanges heat and embedded short tube inner wall Cavity penetrates through, and forms the heat medium cavity that carrying heating agent passes through；The inner wall of heat exchanger tube and the cavity of the outer wall of embedded short tube are formed through Material cavity.
- 2. embedded pipe type heat transfer pipe according to claim 1, it is characterised in that：It is adjacent along the cross-sectional direction of heat exchanger tube Two layers of short tube, its setting direction are not parallel.
- 3. embedded pipe type heat transfer pipe according to claim 2, it is characterised in that：It is adjacent along the cross-sectional direction of heat exchanger tube Two layers of short tube, its setting direction are mutually perpendicular to.
- 4. embedded pipe type heat transfer pipe according to claim 1, it is characterised in that：It is same along the cross-sectional direction of heat exchanger tube Short tube quantity in layer is at least one.
- 5. embedded pipe type heat transfer pipe according to claim 1, it is characterised in that：It is same along the cross-sectional direction of heat exchanger tube It is parallel to each other between the short tube in same layer and be symmetrical arranged during the short tube quantity more than one of layer.
- 6. embedded pipe type heat transfer pipe according to claim 1, it is characterised in that：It is same along the cross-sectional direction of heat exchanger tube When short tube quantity in layer is 1；Short tube outside diameter is 0.2 ~ 0.7 times of heat exchange bore.
- 7. embedded pipe type heat transfer pipe according to claim 1, it is characterised in that：It is same along the cross-sectional direction of heat exchanger tube When short tube quantity in layer is 2；Each short tube outside diameter is 0.15 ~ 0.3 times of heat exchange bore.
- 8. embedded pipe type heat transfer pipe according to claim 1, it is characterised in that：It is same along the cross-sectional direction of heat exchanger tube When short tube quantity in layer is 2；The centre distance of two short tubes is 1.1 ~ 2.5 times of short tube outside diameter.
- A kind of 9. flash heater of the insertion pipe type heat transfer pipe structure comprising described in claim 1.
- 10. flash heater according to claim 9 is shell and tube, coil pipe type or single hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100103.0U CN207247973U (en) | 2017-08-30 | 2017-08-30 | Embedded pipe type heat transfer pipe and the flash heater being made from it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721100103.0U CN207247973U (en) | 2017-08-30 | 2017-08-30 | Embedded pipe type heat transfer pipe and the flash heater being made from it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207247973U true CN207247973U (en) | 2018-04-17 |
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ID=61883705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721100103.0U Active CN207247973U (en) | 2017-08-30 | 2017-08-30 | Embedded pipe type heat transfer pipe and the flash heater being made from it |
Country Status (1)
| Country | Link |
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| CN (1) | CN207247973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367186A (en) * | 2017-08-30 | 2017-11-21 | 大连海新工程技术有限公司 | Embedded pipe type heat transfer pipe and the flash heater being made from it |
| WO2020199414A1 (en) * | 2019-04-02 | 2020-10-08 | 青岛海尔空调器有限总公司 | Fluid pipe, heat exchange device and temperature regulation device |
-
2017
- 2017-08-30 CN CN201721100103.0U patent/CN207247973U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367186A (en) * | 2017-08-30 | 2017-11-21 | 大连海新工程技术有限公司 | Embedded pipe type heat transfer pipe and the flash heater being made from it |
| WO2020199414A1 (en) * | 2019-04-02 | 2020-10-08 | 青岛海尔空调器有限总公司 | Fluid pipe, heat exchange device and temperature regulation device |
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