CN117704859A - Heat exchanger for polymer melt - Google Patents
Heat exchanger for polymer melt Download PDFInfo
- Publication number
- CN117704859A CN117704859A CN202311831567.9A CN202311831567A CN117704859A CN 117704859 A CN117704859 A CN 117704859A CN 202311831567 A CN202311831567 A CN 202311831567A CN 117704859 A CN117704859 A CN 117704859A
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- Prior art keywords
- shell
- casing
- heat exchange
- oil
- groups
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- 229920000642 polymer Polymers 0.000 title claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000006185 dispersion Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 30
- 230000008676 import Effects 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- 230000006872 improvement Effects 0.000 description 8
- 239000004795 extruded polystyrene foam Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchanger for polymer melt, which comprises two groups of symmetrically arranged first shells, wherein a raw material inlet and a raw material outlet are respectively arranged on the two groups of first shells, a second shell is arranged between the two groups of first shells, the second shells are symmetrically provided with two groups of second shells, the two groups of second shells are connected through a third shell, heat exchange pipes are respectively arranged on the inner sides of the first shells and the second shells, a plurality of groups of heat exchange pipes are uniformly arranged, cross heat exchange pipes are arranged on the inner sides of the third shells, and a plurality of groups of cross heat exchange pipes are arranged 2 After gas injection and in better dispersion and dissolution of the polymerThe dispersion of the polymer is uneven, the solubility is too low, and the thickness of the cells is not uniform.
Description
Technical Field
The invention relates to the technical field of heat exchangers, in particular to a heat exchanger for polymer melt.
Background
The extruded polystyrene foam (XPS) product has a special fine closed cell honeycomb structure, and has the characteristics of high density, high compression performance, small heat conductivity, low water absorption, small water vapor permeability and the like compared with an EPS board. The XPS board can still keep excellent heat preservation performance under long-term high humidity or water immersion environment, and is a heat preservation material with the heat resistance retention rate of more than 80% after two years at 70% relative humidity in various common heat preservation materials.
However, in the production process of extruded polystyrene foam (XPS) products, the problems of large cell structure, uneven compression resistance, low heat conductivity coefficient and the like exist, the existing solution is to add a proper nucleating agent to thin cells, but the method has the defect of heavy density, and the other solution is to add proper propane, but the method has the defect of inflammability and explosiveness risk, so the invention provides a heat exchanger for polymer melt to solve the problems in the prior art.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a heat exchanger for polymer melt having a heat exchanger capable of overcoming CO 2 And the problem of uneven dispersion of the polymer, and can solve the problems existing in the prior art.
In order to achieve the purpose of the invention, the invention is realized by the following technical scheme: the utility model provides a heat exchanger that polymer fuse-element was used, includes two sets of first casings that are the symmetry setting, two sets of be equipped with raw materials import and raw materials export on the first casing respectively, and two sets of be equipped with the second casing between the first casing, the second casing symmetry is equipped with two sets of, and connects through the third casing between two sets of second casings, the heat exchange tube is all installed to the inboard of first casing and second casing, the heat exchange tube evenly is equipped with a plurality of groups, and the both ends of heat exchange tube all run through the first casing and the second casing of corresponding position, alternately heat exchange tube is installed to the inboard of third casing, alternately heat exchange tube is equipped with a plurality of groups, and a plurality of groups alternately heat exchange tube is the dispersion setting, oil circuit heat exchange assembly is all installed in the outside of first casing, second casing and third casing, oil circuit heat exchange assembly includes outer oil circuit casing, outer oil circuit casing cover is established on first casing, second casing and third casing.
The further improvement is that: the two sides of the outer oil way shell are respectively provided with an oil way inlet and an oil way outlet, the oil way inlet and the oil way outlet are respectively provided with two groups, the two sides of the outer oil way shell are respectively provided with a three-way pipe, and the two sides of the three-way pipe are respectively connected with the oil way inlet and the oil way outlet.
The further improvement is that: the outer connecting rings are arranged on the first shell and the third shell, the diameter of the outer ring of each outer connecting ring is larger than that of the first shell, the diameter of the inner ring of each outer connecting ring is matched with that of the second shell, and the outer connecting rings are connected with the second shell through bolts.
The further improvement is that: one end of the three-way pipe is connected with an external oil supply pipeline, connecting seats are arranged at the other two ends of the three-way pipe, the connecting seats are connected with the three-way pipe through bolts, and the connecting seats are connected with an oil way inlet and an oil way outlet at corresponding positions through threads.
The further improvement is that: the outer oil way shell consists of two groups of symmetrically arranged sub-shells, extension parts are arranged on two sides of each sub-shell, the extension parts and the sub-shells are integrally formed, and the two groups of sub-shells are connected through bolts.
The further improvement is that: and oil cavities are arranged among the outer oil way shell, the first shell, the second shell and the third shell, and are communicated with heat exchange pipes and cross heat exchange pipes at corresponding positions.
The further improvement is that: two groups of sealing rings which are symmetrically arranged are arranged on the inner side of the outer oil way shell, sealing clamping grooves are formed in the first shell, the second shell and the third shell on the inner side of the sealing rings, parts of the sealing rings are located in the sealing clamping grooves, and the sealing rings are matched with the sealing clamping grooves.
The further improvement is that: the inner side of the outer connecting ring is provided with sealing rubber rings on the first shell and the third shell, and the sealing rubber rings are arranged in a hollow mode.
The further improvement is that: the heat exchange tubes are arranged in a crisscross manner.
The beneficial effects of the invention are as follows: the heat exchanger for polymer melt integrally adopts the stacked technical means of pipeline dispersion and oil duct dispersion,the combined tubular heat exchanger and the cross heat exchanger are matched, so that the melt is dispersed, mixed and redispersed in the extrusion process, and the problem that XPS products are mixed in CO is solved 2 The invention adopts modularized design, is convenient for replacement and disassembly, thereby being convenient for maintenance and repair, reducing the cost of using components, saving XPS density cost correspondingly and overcoming CO 2 And the problem of uneven dispersion of the polymer, thereby achieving the uniform wrapping and dispersing effects of the gas and the polymer and enabling the CO to be 2 The quantity of (a) improves, and flame retardant efficiency promotes, and resistance to compression effect promotes, and the heat conduction effect promotes.
Drawings
Fig. 1 is a schematic elevational view of the present invention.
Fig. 2 is a schematic top view of the first housing of the present invention.
Fig. 3 is a schematic side view of the first housing of the present invention.
FIG. 4 is a schematic front view of the feedstock of the present invention.
Fig. 5 is a schematic cross-sectional side view of a cross heat exchange tube of the present invention.
FIG. 6 is a schematic cross-sectional side view of another cross-exchange tube of the present invention
Fig. 7 is a schematic elevational view of the third housing of the present invention.
Wherein: 1. a first housing; 2. a raw material inlet; 3. a raw material outlet; 4. a second housing; 5. a third housing; 6. a heat exchange tube; 7. crossing heat exchange tubes; 8. an outer oil path housing; 9. an oil path inlet; 10. an oil path outlet; 11. a three-way pipe; 12. an outer connecting ring; 13. a connecting seat; 14. a sub-shell; 15. an extension; 16. an oil chamber; 17. a seal ring; 18. sealing the clamping groove; 19. and (5) sealing the rubber ring.
Detailed Description
The present invention will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
According to the embodiment shown in fig. 1-7, a heat exchanger for polymer melt is provided, which comprises two groups of symmetrically arranged first shells 1, wherein the two groups of first shells 1 are respectively provided with a raw material inlet 2 and a raw material outlet 3, and the heat exchanger is arranged at the connecting section between an external double screw and a single screw and is connected with a screen changer, so that when in operation, raw materials enter from the left first shell 1 and are discharged from the right first shell 1, and enter the screen changer, namely, the left side and the right side are respectively corresponding to the raw material inlet 2 and the raw material outlet 3.
The second shell 4 is arranged between the two groups of first shells 1, the second shell 4 is symmetrically provided with two groups, and the two groups of second shells 4 are connected through the third shell 5, in the embodiment, the heat exchange tubes 6 are uniformly arranged on the inner sides of the first shells 1 and the second shells 4, the heat exchange tubes 6 are uniformly provided with a plurality of groups, the heat exchange tubes 6 of the plurality of groups are arranged in a criss-cross manner, namely, as shown in figure 3, part of the heat exchange tubes 6 are longitudinally arranged, part of the heat exchange tubes 6 are transversely arranged, the transversely arranged heat exchange tubes 6 are connected with the corresponding longitudinal heat exchange tubes 6, so that the heat exchange tubes 6 at the corresponding positions and the first shell 1 and the second shell 4 are matched to form a tubular heat exchanger, the inner side of the third shell 5 is provided with a cross heat exchange tube 7, the cross heat exchange tube 7 is provided with a plurality of groups, namely the third shell 5 and the cross heat exchange tube 7 form a cross heat exchanger, so that after entering the device, raw materials exchange heat through the tubular heat exchanger, exchange heat through the cross heat exchanger, exchange heat through the tubular heat exchanger, and meanwhile, in the process of passing, the cross heat exchange tube 7 and the heat exchange tube have the dispersing effect on the passing raw materials, namely the heat exchange tube 6 disperses the raw materials, the cross heat exchange tube 7 disperses and mixes the raw materials, and then disperses, so that the invention adopts the overlapping technical means of pipeline dispersion and oil duct dispersion, simultaneously has the effects of heat exchange and material dispersion, and overcomes the defects of CO 2 And the problem of uneven dispersion of the polymer, thereby achieving the uniform wrapping and dispersing effects of the gas and the polymer and enabling the CO to be 2 The quantity of (a) improves, and flame retardant efficiency promotes, and resistance to compression effect promotes, and the heat conduction effect promotes.
Specifically, the two ends of the heat exchange tube 6 that are longitudinally distributed penetrate through the first shell 1 and the second shell 4 that are at corresponding positions, that is, the inner cavities of the heat exchange tube 6 that are longitudinally distributed are communicated with the outer sides of the first shell 1 and the second shell 4, and as shown in fig. 5 and 6, for the single cross heat exchange tube 7, the cross heat exchange tube 7 is formed by intersecting two pipes, in this embodiment, the intersecting positions of the two pipes are not limited, so that a distributed design is achieved, in other embodiments, the intersecting positions of the two pipes are combined in a mode of intersecting the middle positions, but the dispersing angles of the two intersecting heat exchange tubes are different, so that the corresponding cross heat exchange tubes 7 are arranged according to corresponding requirements, and cannot be changed after the corresponding cross heat exchange tubes are arranged and manufactured, and the inner cavities of the corresponding cross heat exchange tubes 7 are communicated with the outer sides of the third shell 5.
The oil circuit heat exchange component is installed in the outside of first casing 1, second casing 4 and third casing 5, oil circuit heat exchange component includes outer oil circuit casing 8, outer oil circuit casing 8 cover is established on first casing 1, second casing 4 and third casing 5, in this device, outer oil circuit casing 8 self is connected with external oil supply pipeline, then in the in-process that the raw materials passed, heat exchange is carried out with the heat exchange oil that passes through, thereby can reach the effect to the raw materials cooling, and in this device, all be equipped with oil pocket 16 between outer oil circuit casing 8 and first casing 1, second casing 4 and the third casing 5, oil pocket 16 communicates with heat exchange tube 6 and the cross heat exchange tube 7 of corresponding position, so in the in-process that heat exchange oil passed through, it is not only through heat exchange tube 6 and cross heat exchange tube 7, but also outside through first casing 1, second casing 4 and third casing 5, so holistic heat transfer area increases, promote the heat transfer effect, correspondingly, it is the heat transfer oil circuit is controlled for independent control oil circuit according to the effect that the heat transfer of this device is controlled to the heat transfer oil circuit that reaches this cooling effect promptly.
The two sides of the outer oil way shell 8 are respectively provided with an oil way inlet 9 and an oil way outlet 10, the oil way inlet 9 and the oil way outlet 10 are respectively provided with two groups, as shown in fig. 1, two sides of the outer oil way shell 8 are respectively provided with a three-way pipe 11, the two sides of the three-way pipe 11 are respectively connected with the oil way inlet 9 and the oil way outlet 10, the three-way pipe 11 is provided with three ports, one end of the three-way pipe 11 is connected with an external oil supply pipeline, the other two ends of the three-way pipe 11 are respectively provided with a connecting seat 13, the connecting seat 13 is connected with the three-way pipe 11 through bolts, the connecting seat 13 is connected with the oil way inlet 9 and the oil way outlet 10 at corresponding positions through threads, corresponding heat exchange oil enters from the oil way inlet 9 and is discharged from the oil way outlet 10, and the connecting seat 13 adopts a threaded connection mode, so that the corresponding threaded connection also has a sealing effect mainly for convenience in disassembly.
The outer connecting rings 12 are arranged on the first shell 1 and the third shell 5, two groups of outer connecting rings 12 are symmetrically arranged on the third shell 5, the outer ring diameter of each outer connecting ring 12 is larger than that of the first shell 1, the inner ring diameter of each outer connecting ring 12 is matched with that of the corresponding second shell 4, and the outer connecting rings 12 are connected with the corresponding second shell 4 through bolts.
The corresponding outer oil way shell 8 comprises two groups of symmetrically arranged sub-shells 14, the two sides of the sub-shells 14 are respectively provided with an extension part 15, the extension parts 15 and the sub-shells 14 are integrally formed, the two groups of shells 14 are connected through bolts, and the connection positions of the extension parts 15 are the extension parts, so in the device, the outer oil way shell 8 adopts a split type design, the disassembly and the installation are convenient, and after the connection of the outer oil way shell 8, the connection positions of the two groups of shells 14 are subjected to sealing missing, the inner sides of the further outer oil way shell 8 are provided with two groups of symmetrically arranged sealing rings 17, as shown in fig. 1 and 7, the inner sides of the sealing rings 17 are provided with sealing clamping grooves 18 on the first shell 1, the second shell 4 and the third shell 5, parts of the sealing rings 17 are positioned in the sealing clamping grooves 18, the sealing rings 17 are matched with the sealing clamping grooves 18, and the main function of the sealing rings 17 is to fill gaps between the outer oil way shell 8 and the shells, and the two sides of the oil cavity 16 are sealed, so that the leakage of heat exchange oil is avoided.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A heat exchanger for polymer melts, comprising two sets of first shells (1) arranged symmetrically, characterized in that: two sets of be equipped with raw materials import (2) and raw materials export (3) on first casing (1) respectively, and two sets of be equipped with second casing (4) between first casing (1), second casing (4) symmetry is equipped with two sets of, and connects through third casing (5) between two sets of second casings (4), heat exchange tube (6) are all installed to the inboard of first casing (1) and second casing (4), heat exchange tube (6) evenly are equipped with a plurality of groups, and the both ends of heat exchange tube (6) all run through first casing (1) and second casing (4) of corresponding position, cross heat exchange tube (7) are installed to the inboard of third casing (5), cross heat exchange tube (7) are equipped with a plurality of groups, and a plurality of groups of cross heat exchange tube (7) are the dispersion setting, oil circuit heat exchange assembly is all installed in the outside of first casing (1), second casing (4) and third casing (5), oil circuit assembly includes outer casing (8), oil circuit (8) are established on first casing (1), third casing (5).
2. A heat exchanger for a polymer melt as claimed in claim 1, wherein: the two sides of the outer oil way shell (8) are respectively provided with an oil way inlet (9) and an oil way outlet (10), the oil way inlet (9) and the oil way outlet (10) are respectively provided with two groups, the two sides of the outer oil way shell (8) are respectively provided with a three-way pipe (11), and the two sides of the three-way pipe (11) are respectively connected with the oil way inlet (9) and the oil way outlet (10).
3. A heat exchanger for a polymer melt as claimed in claim 1, wherein: the outer connecting rings (12) are arranged on the first shell (1) and the third shell (5), the outer ring diameter of each outer connecting ring (12) is larger than that of the first shell (1), the inner ring diameter of each outer connecting ring (12) is matched with the diameter of the second shell (4), and the outer connecting rings (12) are connected with the second shell (4) through bolts.
4. A heat exchanger for a polymer melt as claimed in claim 2, wherein: one end of the three-way pipe (11) is connected with an external oil supply pipeline, connecting seats (13) are arranged at the other two ends of the three-way pipe (11), the connecting seats (13) are connected with the three-way pipe (11) through bolts, and the connecting seats (13) are connected with an oil way inlet (9) and an oil way outlet (10) at corresponding positions through threads.
5. A heat exchanger for a polymer melt as claimed in claim 1, wherein: the outer oil way shell (8) consists of two groups of symmetrically arranged sub-shells (14), extension parts (15) are arranged on two sides of the sub-shells (14), the extension parts (15) and the sub-shells (14) are integrally formed, and the two groups of sub-shells (14) are connected through bolts.
6. A heat exchanger for a polymer melt as claimed in claim 1, wherein: and oil cavities (16) are formed between the outer oil path shell (8) and the first shell (1), between the outer oil path shell and the outer oil path shell are formed between the outer oil path shell and the second shell (4) and between the outer oil path shell and the third shell (5), and the oil cavities (16) are communicated with heat exchange tubes (6) and cross heat exchange tubes (7) at corresponding positions.
7. A heat exchanger for a polymer melt as claimed in claim 1, wherein: two groups of sealing rings (17) which are symmetrically arranged are arranged on the inner side of the outer oil way shell (8), sealing clamping grooves (18) are formed in the inner side of the sealing rings (17) on the first shell (1), the second shell (4) and the third shell (5), parts of the sealing rings (17) are located in the sealing clamping grooves (18), and the sealing rings (17) are matched with the sealing clamping grooves (18).
8. A heat exchanger for a polymer melt as claimed in claim 1, wherein: the inner side of the outer connecting ring (12) is provided with sealing rubber rings (19) on the first shell (1) and the third shell (5), and the sealing rubber rings (19) are arranged in a hollow mode.
9. A heat exchanger for a polymer melt as claimed in claim 1, wherein: the heat exchange tubes (6) are arranged in a crisscross manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311831567.9A CN117704859A (en) | 2023-12-28 | 2023-12-28 | Heat exchanger for polymer melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311831567.9A CN117704859A (en) | 2023-12-28 | 2023-12-28 | Heat exchanger for polymer melt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117704859A true CN117704859A (en) | 2024-03-15 |
Family
ID=90146025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311831567.9A Pending CN117704859A (en) | 2023-12-28 | 2023-12-28 | Heat exchanger for polymer melt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117704859A (en) |
-
2023
- 2023-12-28 CN CN202311831567.9A patent/CN117704859A/en active Pending
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