CN104913677A - Guide plate distributing method for shell side medium inlet of circular block graphite heat exchanger - Google Patents
Guide plate distributing method for shell side medium inlet of circular block graphite heat exchanger Download PDFInfo
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- CN104913677A CN104913677A CN201410097351.9A CN201410097351A CN104913677A CN 104913677 A CN104913677 A CN 104913677A CN 201410097351 A CN201410097351 A CN 201410097351A CN 104913677 A CN104913677 A CN 104913677A
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- shell side
- guide plate
- heat exchanger
- side medium
- medium inlet
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Abstract
The invention belongs to the technical field of circular block graphite heat exchangers in industrial production devices and relates to a guide and distributing method for a shell side medium inlet of a circular block graphite heat exchanger. The method comprises the steps that a group of guide plates are arranged at the shell side medium inlet of the circular block type graphite heat exchanger, and shell side medium flow passing through transverse through holes of a graphite block is distributed through the guide plates. The problem that the shell side medium flow in a middle area is small because the lengths of transverse through holes of a graphite block are different is solved.
Description
Technical field
The invention belongs to cylindrical block hole graphite heat exchanger capable of dismantling technical field in industrial installation, the method for particularly cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet guiding shunting and structural design and making.
Background technology
For a long time, position, cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet all adopts through type to design (as shown in Figure 1) and orifice-plate type design (as shown in Figure 2).Through type design Problems existing is that entrance medium concentrates on a region, can not according to the medium of heat exchange amount needed for graphite block different parts cross through hole and different resistance reasonable diffluence shell side.There is two problems in orifice-plate type design: one is the circulation area that the combined area of orifice plate perforate is less than medium inlet, serve metering function to shell side medium, two is that orifice plate can not according to the medium of heat exchange amount needed for graphite block different parts cross through hole and different resistance reasonable diffluence shell side.
The heat exchange material of cylindrical block hole graphite heat exchanger capable of dismantling is cylindrical graphite block, cylindrical graphite block has multiple longitudinal circular hole (generally as processing medium passage) and multiple horizontal circular hole (general as cooling or heating medium passage), major part processing medium passes through from the vertical passage of cylindrical graphite block central region, and the main heat exchanging process of heat exchanger carries out in cylindrical graphite block pars intermedia region.Because the cross-drilled hole passage relative middle part cross-drilled hole passage of circular graphitic block both sides is shorter, channel resistance is relatively very little, most shell side medium passes through from the transverse holes of both sides, and the shell side velocity of medium of both sides is very large and the flow velocity at middle part is on the low side, and the heat exchange effect at middle part is declined.Adopt through type design and orifice-plate type design that block hole-type graphite heat exchanger heat exchange efficiency all can be caused to lose.
Summary of the invention
In order to improve the heat exchange efficiency of cylindrical block hole graphite heat exchanger capable of dismantling, the present invention proposes a kind of cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet guide plate shunting, this shunting not only reduces the fluid resistance of shell side medium, and shell side medium main flow can be guided into the concentrated main heat exchange district of cylindrical graphite block middle part chemical medium longitudinal hole.
The cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet guide plate shunting that the present invention proposes, it is characterized in that, at position, cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet, one group of guide plate is set, the flow of shell side medium is distributed, to ensure that most of shell side medium passes through from cylindrical graphite block pars intermedia region with guide plate.
Operation principle of the present invention is: cylindrical block hole graphite heat exchanger capable of dismantling is after heat exchange material and medium and total flow thereof are determined, heat transfer effect depends on flow and the flow velocity of main heat exchange area heat transferring medium, adopt guide plate design to decrease the flow of non-principal heat transfer zone shell side medium, increase flow velocity and the flow of main heat transfer zone shell side medium.
The invention has the beneficial effects as follows: adopt the method and structural design thereof and making that lead and shunt, decrease the resistance of position, shell side medium inlet fluid; Improve the situation of the middle lean stream of the abundant stream in both sides that cylindrical graphite block causes because both sides cross through hole is longer compared with cross through hole between brachymedial, shell side medium main flow is guided into the main heat exchange district that cylindrical graphite block middle part chemical medium longitudinal hole is concentrated, improve heat exchange efficiency; The operating temperature of cylindrical graphite block middle part is reduced, and thermal expansion stress reduces, and chemical attack and stress corrosion slow down, and extend the service life of heat exchanger.
Accompanying drawing illustrates:
Fig. 1 is the perspective cross-sectional schematic diagram of cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet through type design.
Fig. 2 is the perspective cross-sectional schematic diagram of cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet orifice-plate type design.
Fig. 3 is cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet of the present invention guide plate shunting design front view.
Fig. 4 is cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet of the present invention guide plate shunting design top view.
The present invention propose cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet guide plate shunting in conjunction with the embodiments and accompanying drawing be described in detail as follows.
Cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet of the present invention guide plate shunting example structure design as shown in Figure 3, Figure 4.This structure is primarily of medium inlet 1, and shell side medium distributor box 2, guide plate 3, graphite heat exchange block 4, heat exchanger cylindrical shell 5, flow-stopping plate 6, cutoff board 7 forms.Wherein, inlet tube 1 is fixed on shell side medium distributor box 2, and shell side medium distributor box 2 is fixed on heat exchanger cylindrical shell 5, and guide plate 3 is fixed on distributor box 2 and heat exchanger cylindrical shell 5.
Operation principle is: shell side medium enters shell side medium distributor box 2 from medium inlet 1 and carries out secondary distribution by one group of guide plate 3, the throttling action of guide plate 3 limits the shell side rate-of flow of graphite heat exchange block 4 both sides, ensure that most of shell side medium passes through from cylindrical graphite block pars intermedia region, thus improve heat exchange efficiency.
Specific implementation method
In Fig. 3, Fig. 4, guide plate 3 (being made up of several guiding plates) distributes along hoop inside heat exchanger cylindrical shell 5, and the axial length of guide plate 3 is depending on the axial length of graphite heat exchange block 4.A point ebb interval is left between the interior edge of guide plate 3 and the outer of graphite heat exchange block 4.The width of guide plate 3 and distance between plates are determined according to each the going out to flow temperature of interconnection fluid being measured of graphite heat exchange block 4 respectively, making each guide plate by testing the guide plate size selected, by selected each guide plate size of space, the guide plate made being fixed on shell side medium distributor box 2 and heat exchanger cylindrical shell 5.
Claims (7)
1. a cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet guide plate shunting, is characterized in that, arranges one group of guide plate at position, cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet.
2. cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet according to claim 1 guide plate shunting, is characterized in that: guide plate is flat shape plate, arc or multifolded plate.
3. cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet according to claim 1 guide plate shunting, is characterized in that: guide plate is vertical bar shaped, stairstepping or zigzag.
4. cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet according to claim 1 guide plate shunting, is characterized in that: the quantity of guide plate is one or more.
5. cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet according to claim 1 guide plate shunting, is characterized in that: the thickness of guide plate is between 0.01-500mm.
6. cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet according to claim 1 guide plate shunting, is characterized in that: the length of guide plate is between 0.01-50000mm.
7. cylindrical block hole graphite heat exchanger capable of dismantling shell side medium inlet according to claim 1 guide plate shunting, is characterized in that: the spacing between guide plate is between 0.01-50000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410097351.9A CN104913677A (en) | 2014-03-12 | 2014-03-12 | Guide plate distributing method for shell side medium inlet of circular block graphite heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410097351.9A CN104913677A (en) | 2014-03-12 | 2014-03-12 | Guide plate distributing method for shell side medium inlet of circular block graphite heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104913677A true CN104913677A (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410097351.9A Pending CN104913677A (en) | 2014-03-12 | 2014-03-12 | Guide plate distributing method for shell side medium inlet of circular block graphite heat exchanger |
Country Status (1)
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| CN (1) | CN104913677A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036483A (en) * | 2017-03-13 | 2017-08-11 | 西北工业大学 | It is a kind of to improve the parallel cooling duct of assignment of traffic uniformity |
-
2014
- 2014-03-12 CN CN201410097351.9A patent/CN104913677A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036483A (en) * | 2017-03-13 | 2017-08-11 | 西北工业大学 | It is a kind of to improve the parallel cooling duct of assignment of traffic uniformity |
| CN107036483B (en) * | 2017-03-13 | 2019-06-07 | 西北工业大学 | A kind of parallel cooling duct improving assignment of traffic uniformity |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150916 |
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| WD01 | Invention patent application deemed withdrawn after publication |