CN111023870A - Non-blind area shell-and-tube heat exchange device - Google Patents
Non-blind area shell-and-tube heat exchange device Download PDFInfo
- Publication number
- CN111023870A CN111023870A CN201911377718.1A CN201911377718A CN111023870A CN 111023870 A CN111023870 A CN 111023870A CN 201911377718 A CN201911377718 A CN 201911377718A CN 111023870 A CN111023870 A CN 111023870A
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- China
- Prior art keywords
- shell
- inlet
- heat exchanger
- tube heat
- exchanger body
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- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000003225 biodiesel Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a blind-area-free shell-and-tube heat exchanger, which comprises a shell-and-tube heat exchanger body and an auxiliary device, wherein the auxiliary device comprises a buffer water tank and a plurality of branch manifolds, the buffer water tank is respectively provided with a water inlet and a water outlet, the water inlet is used for being connected with a water pump, and the water outlet is communicated with a shell pass inlet of the shell-and-tube heat exchanger body; the shell-and-tube heat exchanger body is provided with a plurality of shunt inlets, one end of the shunt manifold is communicated with the buffer water tank, and the other end of the shunt manifold is communicated with one shunt inlet. The blind-area-free shell-and-tube heat exchange device has the advantages of small blind area/dead area, uniform heat exchange and high heat exchange efficiency.
Description
Technical Field
The invention relates to a blind-area-free shell-and-tube heat exchange device.
Background
At present, in the process flow of preparing the biodiesel, a shell-and-tube heat exchanger is commonly used for cooling or heating materials. Materials such as hot methanol steam enter the heat exchange tube from an inlet at the upper end of the tube side of the heat exchanger, exchange heat with circulating water flowing in from a circulating water inlet at the shell side, and flow out of the heat exchanger from an outlet at the lower part after being condensed into liquid; meanwhile, circulating water entering from a shell pass inlet at the bottom is subjected to heat exchange, then the temperature is raised, and the circulating water flows out of the heat exchanger through an outlet at the upper part of the shell pass. Thus, heat exchange is completed through the stay of the materials in the heat exchanger, and heat is transferred to the circulating cooling water mainly in a convection mode.
However, the tube-shell heat exchanger with a cylinder body with a larger diameter or length has some structural defects, namely, a cooling blind area, namely an area where circulating water does not flow or flows slowly, is large in circulating water pressure drop, high in temperature rise and small in temperature difference with a cooled material. The defects cause that the heat exchange of the radiator is not uniform, and the heat exchange efficiency is reduced.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a blind-area-free shell-and-tube heat exchange device.
A blind-area-free shell-and-tube heat exchange device comprises a shell-and-tube heat exchanger body and an auxiliary device, wherein the auxiliary device comprises a buffer water tank and a plurality of branch manifolds, the buffer water tank is respectively provided with a water inlet and a water outlet, the water inlet is connected with a water pump, and the water outlet is communicated with a shell pass inlet of the shell-and-tube heat exchanger body; the shell-and-tube heat exchanger body is provided with a plurality of shunt inlets, one end of the shunt manifold is communicated with the buffer water tank, and the other end of the shunt manifold is communicated with one shunt inlet.
Based on the above, the number of the shunt inlets is at least three, the shell side inlet is arranged at the bottom of the left side of the shell-and-tube heat exchanger body, the first shunt inlet is arranged at the position of the front side of the shell-and-tube heat exchanger body, which is one third high away from the bottom, the second shunt inlet is arranged at the position of the right side of the shell-and-tube heat exchanger body, which is two thirds high away from the bottom, the third shunt inlet is arranged at the top of the rear side of the shell-and-tube heat exchanger body, and the shell side outlet of the shell-and-.
Based on the above, the shell pass inlet and the shunt inlet are respectively arranged along the shell tangential direction of the shell body of the shell-and-tube heat exchanger body.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly, the invention enables cooling circulating water to directly flow to an obvious cooling blind area by arranging the buffer water tank at the shell pass inlet of the circulating water and arranging a proper number of branch pipes, so that the temperature difference between a cooling medium and a cooled material can be directly increased, and simultaneously, the turbulent flow velocity of the cooling medium is relatively increased, thereby effectively overcoming the heat exchange blind area of the heat exchanger and improving the heat exchange efficiency of the heat exchanger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. a shell-and-tube heat exchanger body; 2. a buffer water tank; 3. a water inlet; 4. a water outlet; 5. a shell side inlet; 6. a shell-side outlet; 7. a split-flow inlet; 8. a manifold.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, a blind-area-free shell-and-tube heat exchanger device comprises a shell-and-tube heat exchanger body and an auxiliary device, wherein the auxiliary device comprises a buffer water tank and a plurality of branch manifolds, the buffer water tank is respectively provided with a water inlet and a water outlet, the water inlet is used for being connected with a water pump, and the water outlet is communicated with a shell pass inlet of the shell-and-tube heat exchanger body; the shell-and-tube heat exchanger body is provided with a plurality of shunt inlets, one end of the shunt manifold is communicated with the buffer water tank, and the other end of the shunt manifold is communicated with one shunt inlet.
The water inlet of buffer tank is used for connecting water pump and water source, and the delivery port passes through main inlet tube intercommunication shell side import, and in practice, the reposition of redundant personnel import sets up the different positions on shell-and-tube heat exchanger body shell, and main inlet tube and each reposition of redundant personnel manifold design for not unidimensional diameter as required under the condition that satisfies the total flow to the best distribution circulating water flow reaches the purpose of better heat transfer, and the diameter of main inlet tube is greater than the diameter of reposition of redundant personnel manifold. The main water inlet pipe at the bottom generally distributes half of the circulating water flow, so that most of the circulating water can flow through the heat exchanger all the time, and the heat exchange with the exchanged materials is carried out to the maximum extent. The circulating water of the flow dividing manifold directly reaches heat exchange blind areas of different positions of the heat exchange material, and the circulating water flow speed is accelerated to a certain degree due to large temperature difference, so that the cooling effect is better. Therefore, the heat dissipation effect can be greatly improved under the condition that the total flow of circulating water and the heat exchange area of the heat exchanger are not increased, and the purpose of improving the heat exchange efficiency of the heat exchanger is achieved.
In this embodiment, the number of the split inlets is at least three, the shell-side inlet is arranged at the bottom of the left side of the shell-and-tube heat exchanger body, the first split inlet is arranged at a position of the front side of the shell-and-tube heat exchanger body, which is one third high from the bottom, the second split inlet is arranged at a position of the right side of the shell-and-tube heat exchanger body, which is two thirds high from the bottom, the third split inlet is arranged at the top of the rear side of the shell-and-tube heat exchanger body, and the shell-side outlet of the shell-and-tube. The shunting inlets are uniformly distributed on different heights and different directions of the shell-and-tube heat exchanger body so as to effectively improve the coverage of blind areas and improve the heat exchange efficiency. In other embodiments, the number and distribution of split inlets may be further increased to further reduce dead zones.
Preferably, the shell pass inlet and the shunt inlet are respectively arranged along the tangential direction of the shell-and-tube heat exchanger body, and the plurality of water inlets are mutually matched, so that shell pass circulating water forms a weak vortex effect in the shell of the heat exchanger, the circulating water is further uniformly distributed, and the uniform heat exchange effect is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides a no blind area shell and tube heat transfer device which characterized in that: the auxiliary device comprises a shell-and-tube heat exchanger body and an auxiliary device, wherein the auxiliary device comprises a buffer water tank and a plurality of branch manifolds, a water inlet and a water outlet are respectively formed in the buffer water tank, the water inlet is used for being connected with a water pump, and the water outlet is communicated with a shell pass inlet of the shell-and-tube heat exchanger body; the shell-and-tube heat exchanger body is provided with a plurality of shunt inlets, one end of the shunt manifold is communicated with the buffer water tank, and the other end of the shunt manifold is communicated with one shunt inlet.
2. The blind-area-free shell-and-tube heat exchange device of claim 1, characterized in that: the shell-side heat exchanger comprises a shell-side heat exchanger body, a shell-side inlet, a first split inlet, a second split inlet, a third split inlet and a shell-side outlet, wherein the number of the split inlets is at least three, the shell-side inlet is arranged at the bottom of the left side of the shell-side heat exchanger body, the first split inlet is arranged at the position, with the height being one third of the bottom, of the front side of the shell-side heat exchanger body, the second split inlet is arranged at the position, with the height being two thirds of the bottom, of the right side of the shell-side heat.
3. The blind-area-free shell-and-tube heat exchange device of claim 1, characterized in that: the shell pass inlet and the shunt inlet are respectively arranged along the tangential direction of a shell of the shell-and-tube heat exchanger body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377718.1A CN111023870A (en) | 2019-12-27 | 2019-12-27 | Non-blind area shell-and-tube heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911377718.1A CN111023870A (en) | 2019-12-27 | 2019-12-27 | Non-blind area shell-and-tube heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111023870A true CN111023870A (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911377718.1A Pending CN111023870A (en) | 2019-12-27 | 2019-12-27 | Non-blind area shell-and-tube heat exchange device |
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| CN (1) | CN111023870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577348A (en) * | 2020-12-17 | 2021-03-30 | 南通润中石墨设备有限公司 | Sleeved shell of round block hole type graphite heat exchanger and production process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080190593A1 (en) * | 2007-02-09 | 2008-08-14 | Xi'an Jiaotong University | Single shell-pass or multiple shell-pass shell-and-tube heat exchanger with helical baffles |
| CN201476639U (en) * | 2009-04-16 | 2010-05-19 | 浙江维兰特流体科技有限公司 | Energy-saving heat exchange system |
| CN201909566U (en) * | 2010-11-29 | 2011-07-27 | 东北石油大学 | Multi-channel shell-and-tube heat exchanger |
| CN103512395A (en) * | 2013-10-24 | 2014-01-15 | 湖北壮志石化设备科技有限公司 | Square heat exchanger |
| CN110579120A (en) * | 2019-08-30 | 2019-12-17 | 安徽池州九华发电有限公司 | Shell-and-tube heat exchanger and control method thereof |
| CN211552532U (en) * | 2019-12-27 | 2020-09-22 | 河南恒天久大实业有限公司 | Non-blind area shell-and-tube heat exchange device |
-
2019
- 2019-12-27 CN CN201911377718.1A patent/CN111023870A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080190593A1 (en) * | 2007-02-09 | 2008-08-14 | Xi'an Jiaotong University | Single shell-pass or multiple shell-pass shell-and-tube heat exchanger with helical baffles |
| CN201476639U (en) * | 2009-04-16 | 2010-05-19 | 浙江维兰特流体科技有限公司 | Energy-saving heat exchange system |
| CN201909566U (en) * | 2010-11-29 | 2011-07-27 | 东北石油大学 | Multi-channel shell-and-tube heat exchanger |
| CN103512395A (en) * | 2013-10-24 | 2014-01-15 | 湖北壮志石化设备科技有限公司 | Square heat exchanger |
| CN110579120A (en) * | 2019-08-30 | 2019-12-17 | 安徽池州九华发电有限公司 | Shell-and-tube heat exchanger and control method thereof |
| CN211552532U (en) * | 2019-12-27 | 2020-09-22 | 河南恒天久大实业有限公司 | Non-blind area shell-and-tube heat exchange device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577348A (en) * | 2020-12-17 | 2021-03-30 | 南通润中石墨设备有限公司 | Sleeved shell of round block hole type graphite heat exchanger and production process thereof |
| CN112577348B (en) * | 2020-12-17 | 2022-08-02 | 南通润中石墨设备有限公司 | Sleeved shell of round block hole type graphite heat exchanger and production process thereof |
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