CN211552532U - Non-blind area shell-and-tube heat exchange device - Google Patents
Non-blind area shell-and-tube heat exchange device Download PDFInfo
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- CN211552532U CN211552532U CN201922401272.3U CN201922401272U CN211552532U CN 211552532 U CN211552532 U CN 211552532U CN 201922401272 U CN201922401272 U CN 201922401272U CN 211552532 U CN211552532 U CN 211552532U
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Abstract
The utility model provides a non-blind area shell-and-tube heat exchanger, including shell-and-tube heat exchanger body and auxiliary device, the auxiliary device includes buffer water tank and a plurality of reposition of redundant personnel manifold branches, buffer water tank is last to have seted up water inlet and delivery port respectively, the water inlet is used for connecting the water pump, the delivery port is communicating the shell side import of 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 utility model relates to a non-blind area shell and tube heat transfer 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 problem existing in the background art, the utility model provides a no blind area shell and tube heat transfer 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.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses a shell side import at the circulating water sets up buffer tank to through the reposition of redundant personnel manifold of arranging suitable quantity, make refrigeration cycle water direct flow to obvious cooling blind area, can directly increase coolant like this and by the temperature difference of cooling material, also increased coolant's turbulent flow velocity relatively simultaneously, thereby effectively overcome the heat transfer blind area of heat exchanger, improve heat exchanger heat exchange efficiency.
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 these drawings without creative efforts.
Fig. 1 is a schematic structural diagram 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection 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 is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 |
|---|---|---|---|
| CN201922401272.3U CN211552532U (en) | 2019-12-27 | 2019-12-27 | Non-blind area shell-and-tube heat exchange device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922401272.3U CN211552532U (en) | 2019-12-27 | 2019-12-27 | Non-blind area shell-and-tube heat exchange device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023870A (en) * | 2019-12-27 | 2020-04-17 | 河南恒天久大实业有限公司 | Non-blind area shell-and-tube heat exchange device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023870A (en) * | 2019-12-27 | 2020-04-17 | 河南恒天久大实业有限公司 | Non-blind area shell-and-tube heat exchange device |
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