CN212902825U - Steel lining injection molding integral type mould pressing PFA tube sheet - Google Patents
Steel lining injection molding integral type mould pressing PFA tube sheet Download PDFInfo
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- CN212902825U CN212902825U CN202021401715.5U CN202021401715U CN212902825U CN 212902825 U CN212902825 U CN 212902825U CN 202021401715 U CN202021401715 U CN 202021401715U CN 212902825 U CN212902825 U CN 212902825U
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Abstract
The utility model relates to the technical field of tube still heat exchangers, in particular to a steel lining injection molding integrated mould pressing PFA tube plate, which comprises a first tube plate body, a second tube plate body, a plurality of tube bundle inlets and outlets and a plurality of sealing filler openings; the second tube plate body is integrally and uniformly coated on one surface of the first tube plate body, which is provided with the tube bundle inlet and outlet, and is made of PFA; the plurality of tube bundle inlets and outlets and the sealing filler ports are uniformly formed in the plate surfaces of the first tube plate body and the second tube plate body; the sealing filler openings are communicated with the inlet and outlet of the tube bundle in a one-to-one correspondence manner. The utility model has the advantages that the second tube plate body made of PFA is coated outside the first tube plate body made of steel billet, so that the tube plate has better anti-corrosion effect, and the whole structure is more stable and reliable; the sealing filler opening is matched with the second tube plate body made of PFA, so that the sealing performance of the heat exchanger is further guaranteed, the whole service life of the heat exchanger is prolonged, and the production cost of an enterprise is reduced.
Description
Technical Field
The utility model relates to a shell and tube heat exchanger technical field especially relates to an integral type mould pressing PFA tube sheet is moulded plastics to steel lining.
Background
The shell and tube heat exchanger used in the fields of chemistry, petroleum, food, metallurgy and the like has the main working principle that materials circulate from a heat exchange pipeline inside the heat exchanger, heat exchange media are used outside the pipeline to fully exchange heat with the materials in the pipeline so as to achieve the purpose of heat exchange, but materials with strong oxidizability and corrosivity are frequently used in heat exchange, so that the shell and tube heat exchanger has the performances of strong corrosion resistance, high temperature resistance, high pressure resistance and the like.
Glass-lined tube plates of tube type heat exchangers in the prior art are usually glass-lined tube plates or pure tetrafluoro tube plates, however, the glass-lined tube plates are usually easy to generate porcelain explosion phenomenon, so that the quality of the whole heat exchanger is not over-qualified; the pure tetrafluoro tube plate is usually not strong enough and is easy to leak, so that the sealing performance of the heat exchanger is reduced; the tube plate and the heat exchange tube of the metal tube type heat exchanger are usually connected by adopting a welding process, and high temperature in the welding process can cause the metal material of a welding point to be oxidized and changed, so that the corrosion resistance of the heat exchanger is reduced; therefore, in order to overcome the above defects, a tube plate which has a more stable and reliable process structure, can resist high-temperature working conditions, is more corrosion-resistant and has better sealing performance is urgently needed.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a pair of integral type mould pressing PFA tube sheet is moulded plastics to shell and tube heat exchanger tube sheet structural stability, high temperature resistance, corrosion resistance and the leakproofness that exist among the solution prior art remain the problem of promoting, have avoided the heat exchanger tube sheet to take place to explode the condition emergence of porcelain, leakage and corruption etc..
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a steel lining injection molding integral type mould pressing PFA tube plate, which comprises a first tube plate body, a second tube plate body, a plurality of tube bundle inlets and outlets for arranging heat exchange tubes and a plurality of sealing filler openings; the first tube plate body is of a cylindrical structure; the second tube plate body is integrally and uniformly coated on one surface of the first tube plate body, which is provided with the heat exchange tubes, the second tube plate body and the first tube plate body are arranged in a clinging manner, and the second tube plate body is made of PFA; the plurality of tube bundle inlets and outlets are uniformly formed in the plate surfaces of the first tube plate body and the second tube plate body, and the tube bundle inlets and outlets are perpendicular to the plate surfaces of the first tube plate body and the second tube plate body; the sealing filler openings are uniformly formed in the plate surfaces of the first tube plate body and the second tube plate body, the sealing filler openings are perpendicular to the plate surfaces of the first tube plate body and the second tube plate body, the sealing filler openings and the tube bundle inlet and outlet are communicated in a one-to-one correspondence mode, and the hole center lines of the sealing filler openings and the hole center lines of the tube bundle inlet and outlet are collinear.
The utility model provides an integral type mould pressing PFA tube sheet is moulded plastics to steel lining, preferably, second tube sheet body wholly evenly cladding in on the whole faces of first tube sheet body, second tube sheet body with the setting is hugged closely to first tube sheet body, second tube sheet body is made by PFA.
The utility model provides an integral type mould pressing PFA tube sheet is moulded plastics to steel lining, preferably, the aperture of gland packing mouth is greater than the aperture of tube bank access & exit, the gland packing mouth with form the gland packing step between the tube bank access & exit.
The utility model provides an integral type mould pressing PFA tube sheet is moulded plastics to steel lining, preferably, it is whole all be equipped with in the sealing filler mouth can with the sealed screw thread of gland nut adaptation.
The utility model provides an integral type mould pressing PFA tube sheet is moulded plastics to steel lining, preferably, sealed screw thread is integrative injection moulding formula structure.
The utility model provides a steel lining injection molding integral type mould pressing PFA tube sheet preferably, still includes seal assembly; the sealing assembly is arranged at the edge of the periphery of the plate surface of the second tube plate body.
The utility model provides a steel lining injection moulding integral type mould pressing PFA tube sheet, preferably, the seal assembly includes seal groove and sealed pad; the sealing groove is formed in the edge of the periphery of the plate surface of the second tube plate body and is of an integrated mould pressing type structure; the sealing gasket is detachably arranged in the sealing groove, and the sealing gasket is tightly attached to the sealing groove.
The utility model provides an integral type mould pressing PFA tube sheet is moulded plastics to steel lining, preferably, first tube sheet body is made by the steel billet.
The utility model provides an integral type mould pressing PFA tube sheet is moulded plastics to steel lining, preferably, second tube sheet body is the mould unloading and moulds plastics an organic whole mould pressing formula structure.
The utility model provides an integral type mould pressing PFA tube sheet is moulded plastics to steel lining, preferably, the thickness of second tube sheet body is 5 mm.
The technical scheme has the following advantages or beneficial effects:
the utility model provides a steel lining injection molding integral type mould pressing PFA tube plate, which comprises a first tube plate body, a second tube plate body, a plurality of tube bundle inlets and outlets and a plurality of sealing filler openings; the first tube plate body is of a cylindrical structure; the second tube plate body is integrally and uniformly coated on one surface of the first tube plate body, which is provided with the tube bundle inlet and outlet, the second tube plate body and the first tube plate body are arranged in a clinging manner, and the second tube plate body is made of PFA; the plurality of tube bundle inlets and outlets are uniformly formed in the plate surfaces of the first tube plate body and the second tube plate body; a plurality of sealing filler openings are uniformly formed in the plate surfaces of the first tube plate body and the second tube plate body, and the sealing filler openings are communicated with the tube bundle inlet and outlet in a one-to-one correspondence mode. The utility model discloses a second tube sheet body that the outside cladding of the first tube sheet body of making by the steel billet is made by PFA, can make the tube sheet have better anticorrosion effect, and its overall structure is more reliable and more stable, avoids appearing for example glass-lined tube sheet porcelain explosion, pure tetrafluoro tube sheet leakage or metal shell and tube heat exchanger tube sheet welding point's metal material oxidation and deterioration, leads to phenomenons such as the corrosion resistance reduction of heat exchanger; in addition, each heat exchange tube is independent seal structure by the arrangement of the sealing filler opening, so that the heat exchange tubes can be independently disassembled and replaced if the heat exchange tubes are damaged in the use process of the heat exchanger, the integral scrapping phenomenon of the heat exchanger is avoided, and therefore the arrangement of the sealing filler opening is matched with the second tube plate body made of PFA, the whole service life of the heat exchanger is prolonged, and the production cost of enterprises is reduced.
Drawings
The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a schematic cross-sectional structural view of a steel lining injection molding integral type molded PFA pipe plate provided in embodiment 1 of the present invention;
fig. 2 is an enlarged structural view of a step of a packing and a sealing thread in fig. 1.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention are clearly and completely described with reference to the 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. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
glass-lined tube plates of tube type heat exchangers in the prior art are usually glass-lined tube plates or pure tetrafluoro tube plates, however, the glass-lined tube plates are usually easy to generate porcelain explosion phenomenon, so that the quality of the whole heat exchanger is not over-qualified; the pure tetrafluoro tube plate is usually not strong enough and is easy to leak, so that the sealing performance of the heat exchanger is reduced; the tube plate and the heat exchange tube of the metal tube type heat exchanger are usually connected by adopting a welding process, and high temperature in the welding process can cause the metal material of a welding point to be oxidized and changed, so that the corrosion resistance of the heat exchanger is reduced; therefore, in order to overcome the above defects, a tube plate which has a more stable and reliable process structure, can resist high-temperature working conditions, is more corrosion-resistant and has better sealing performance is urgently needed.
The tube plate structure of the tube type heat exchanger is improved in stability, high temperature resistance, corrosion resistance and sealing performance, and the conditions of porcelain explosion, leakage, corrosion and the like of the tube plate of the heat exchanger are avoided. The embodiment 1 of the utility model provides a steel lining injection molding integral type mould pressing PFA tube sheet, as shown in figure 1, including first tube sheet body 1, second tube sheet body 2, a plurality of tube bundle access & exit 3 and a plurality of gland packing mouth 4 that are used for setting up the heat exchange tube; the first tube plate body 1 is of a cylindrical structure, and the first tube plate body 1 is made of a steel billet; the second tube plate body 2 is integrally and uniformly coated on one surface of the first tube plate body 1, which is provided with the heat exchange tubes, the second tube plate body 2 and the first tube plate body 1 are arranged in a clinging manner, and the second tube plate body 2 is made of PFA; the plurality of tube bundle inlets and outlets 3 are uniformly formed in the plate surfaces of the first tube plate body 1 and the second tube plate body 2, and the tube bundle inlets and outlets 3 are perpendicular to the plate surfaces of the first tube plate body 1 and the second tube plate body 2; a plurality of gland packing mouths 4 are uniformly arranged on the surfaces of the first tube plate body 1 and the second tube plate body 2, the gland packing mouths 4 are perpendicular to the surfaces of the first tube plate body 1 and the second tube plate body 2, the gland packing mouths 4 are communicated with the tube bundle inlet and outlet 3 in a one-to-one correspondence mode, and the hole center lines of the gland packing mouths 4 are collinear with the hole center lines of the tube bundle inlet and outlet 3. The utility model provides a steel lining integral type mould pressing PFA tube sheet of moulding plastics, because PFA has outstanding resistant chemical corrosion nature, antifriction and material stability, is suitable for making corrosion resisting part, antifriction wearing part and sealing member etc. consequently, the utility model discloses an aspect is through the second tube sheet body 2 of making by PFA at the outside cladding of the first tube sheet body 1 of making by the steel billet, can make the tube sheet have better anti-corrosion effect, and its overall structure is more reliable and more stable, avoids appearing for example glass-lined tube sheet porcelain explosion, pure tetrafluoro tube sheet leakage or the metal material of metal shell and tube heat exchanger tube sheet welding point and is oxidized and become, leads to phenomena such as corrosion resistance reduction of heat exchanger; on the other hand, each heat exchange tube is of an independent sealing structure due to the arrangement of the sealing filler opening 4, so that the heat exchange tubes can be independently disassembled and replaced if damaged in the use process of the heat exchanger, and the phenomenon of integral scrapping of the heat exchanger is avoided, so that the arrangement of the sealing filler opening 4 is matched with the second tube plate body 2 made of PFA, the sealing performance of the heat exchanger is further ensured, the integral service life of the heat exchanger is prolonged, and the production cost of enterprises is reduced; in addition, the second tube plate body 2 made of PFA is of a single-face arrangement structure, and when the shell-and-tube heat exchanger with a large size is encountered, the volume of the tube plate is large, so that the single-face arrangement ensures a good anti-corrosion effect, improves the production efficiency of the tube plate to a large extent, and reduces the production cost of enterprises.
In order to further improve the corrosion resistance of the tube plate, the steel lining injection molding integral type mold pressing PFA tube plate provided by the embodiment, further, the second tube plate body 2 is integrally and uniformly coated on all the plate surfaces of the first tube plate body 1, the second tube plate body 2 and the first tube plate body 1 are arranged in a clinging manner, and the second tube plate body 2 is made of PFA. When the whole of shell and tube heat exchanger and outside service environment are comparatively abominable, this moment, also higher relatively to the corrosion resistance requirement of tube sheet, consequently, through all-round cladding second tube sheet body 2 uniformly on the whole face at first tube sheet body 1, can reach better anti-corrosion effect to the whole environmental suitability and the practicality of shell and tube heat exchanger have further been improved.
In order to further improve the sealing performance of the tube plate, the steel lining injection molding integral type molded PFA tube plate provided by the embodiment, further, the aperture of the sealing filler opening 4 is larger than that of the tube bundle inlet and outlet 3, and a sealing filler step 5 is formed between the sealing filler opening 4 and the tube bundle inlet and outlet 3. By arranging the sealing filler step 5, the sealing space of the sealing filler is further optimized, and the overall setting condition of the sealing filler is ensured, so that the sealing performance of the tube plate is further improved.
In order to further improve the sealing performance of the tube plate, the steel lining injection molding integral type molded PFA tube plate provided by the embodiment further has sealing threads 6 which can be adapted to the sealing nuts, all of the sealing filler openings 4 are provided with the sealing threads. The sealing thread 6 is of an integrated injection molding structure. Through setting up the sealed screw thread 6 that utilizes mould integrated into one piece for can not produce the rotten tooth's of gas pocket the condition in the sealed screw thread 6, seal nut twists the back and seals through the extrusion filler, thereby improved the sealing performance of tube sheet to a great extent.
In order to further improve the sealing performance of the tube plate, the steel lining injection molding integral type molded PFA tube plate provided by the embodiment further comprises a sealing assembly 7; the sealing assembly 7 is disposed at a peripheral edge of the plate surface of the second tube plate body 2, and the sealing groove 71 is of an integrated molding structure. Further, the seal assembly 7 includes a seal groove 71 and a seal gasket; the sealing groove 71 is formed at the edge of the periphery of the plate surface of the second tube plate body 2; the gasket is detachably disposed in the seal groove 71, and the gasket is disposed in close contact with the seal groove 71. By arranging the sealing groove 71 and the sealing gasket on the periphery of the plate surface of the tube plate, after the sealing gasket is arranged in the sealing groove 71, when the whole heat exchanger meets high negative pressure, the position of the sealing gasket is ensured not to slide easily due to vacuum, so that better sealing is formed; and the sealing groove 71 is of an integrated mould pressing type structure, and after the sealing gasket is arranged in the sealing groove, the position of the sealing gasket can be better fixed, so that the sealing performance of the tube plate is further improved.
In order to further improve the reliability of the overall structure of the tube plate, in the steel lining injection molding integrated molded PFA tube plate provided in this embodiment, the second tube plate body 2 is in a mold opening injection integrated molded structure. The second tube plate body 2 which is of a mold-opening injection molding integrated mold-pressing structure and is made of PFA has the characteristics of high temperature and high pressure resistance, corrosion resistance, friction resistance and the like, so that the working reliability and the sealing performance of the shell side and the tube side of the tubular heat exchanger are further enhanced; and moreover, the standardized manufacturing of enterprises is facilitated, and a great convenience degree is provided for the manufacturing and installation of the steel lining injection molding integral type mould pressing PFA pipe plate provided by the embodiment.
In order to improve the product economy of the tube plate while ensuring the reliability of the overall structure of the tube plate, the steel lining injection molding integral type molded PFA tube plate provided by the embodiment further has the thickness of the second tube plate body 2 of 5 mm. A large number of tests prove that under the premise that the volume of the first tube plate body 1 is certain, when the thickness of the second tube plate body 2 is 5mm, at the moment, the performance of all aspects of the overall structure of the tube plate is optimal, and the consumable materials are the least, so that the reliability of the overall structure of the steel lining injection molding integral type mold pressing PFA tube plate is ensured, and meanwhile, the manufacturing cost of enterprises is reduced to a certain extent.
To sum up, the utility model provides a steel lining integral type mould pressing PFA tube sheet of moulding plastics, through the second tube sheet body that the outside cladding made by PFA of the first tube sheet body made by the steel billet, can make the tube sheet have better anti-corrosion effect, and its overall structure is more reliable and more stable, avoids appearing for example glass-lined tube sheet porcelain explosion, pure tetrafluoro tube sheet leakage or the metal material of metal shell and tube heat exchanger tube sheet welding point changes by oxidation, leads to phenomenons such as the corrosion resistance of heat exchanger reduces; in addition, each heat exchange tube is independent seal structure by the arrangement of the sealing filler opening, so that the heat exchange tubes can be independently disassembled and replaced if the heat exchange tubes are damaged in the use process of the heat exchanger, the integral scrapping phenomenon of the heat exchanger is avoided, and therefore the arrangement of the sealing filler opening is matched with the second tube plate body made of PFA, the whole service life of the heat exchanger is prolonged, and the production cost of enterprises is reduced.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (10)
1. A steel lining injection molding integral type mould pressing PFA tube plate is characterized by comprising a first tube plate body, a second tube plate body, a plurality of tube bundle inlets and outlets for arranging heat exchange tubes and a plurality of sealing filler openings;
the first tube plate body is of a cylindrical structure;
the second tube plate body is integrally and uniformly coated on one surface of the first tube plate body, which is provided with the heat exchange tubes, the second tube plate body and the first tube plate body are arranged in a clinging manner, and the second tube plate body is made of PFA;
the plurality of tube bundle inlets and outlets are uniformly formed in the plate surfaces of the first tube plate body and the second tube plate body, and the tube bundle inlets and outlets are perpendicular to the plate surfaces of the first tube plate body and the second tube plate body;
the sealing filler openings are uniformly formed in the plate surfaces of the first tube plate body and the second tube plate body, the sealing filler openings are perpendicular to the plate surfaces of the first tube plate body and the second tube plate body, the sealing filler openings and the tube bundle inlet and outlet are communicated in a one-to-one correspondence mode, and the hole center lines of the sealing filler openings and the hole center lines of the tube bundle inlet and outlet are collinear.
2. The steel lined injection molded integral PFA tube sheet of claim 1, wherein the second tube sheet body is entirely and uniformly coated on the entire surface of the first tube sheet body.
3. The steel-lined injection-molded integral molded PFA tube sheet of claim 1, wherein the aperture of the packing port is larger than the aperture of the tube bundle inlet and outlet, and a packing step is formed between the packing port and the tube bundle inlet and outlet.
4. The steel lining injection molding integral type mould pressing PFA pipe plate according to claim 1, wherein all the sealing filler openings are internally provided with sealing threads which can be matched with sealing nuts.
5. The steel lined integrally molded PFA tube sheet according to claim 4, wherein the sealing threads are of an integrally injection molded construction.
6. The steel lined injection molded integral PFA tube sheet of claim 1, further comprising a sealing assembly; the sealing assembly is arranged at the edge of the periphery of the plate surface of the second tube plate body.
7. The steel lined injection molded integral PFA tube sheet of claim 6, wherein the seal assembly comprises a seal groove and a seal gasket; the sealing groove is formed in the edge of the periphery of the plate surface of the second tube plate body and is of an integrated mould pressing type structure; the sealing gasket is detachably arranged in the sealing groove, and the sealing gasket is tightly attached to the sealing groove.
8. The steel lined injection molded unitary PFA tube sheet of claim 1, wherein the first tube sheet body is made of a steel billet.
9. The steel lined injection molded integral PFA tube sheet of any one of claims 1-8, wherein the second tube sheet body is of an open mold injection molded integral molded structure.
10. The steel lined injection molded unitary PFA tube sheet of claim 9, wherein the second tube sheet body has a thickness of 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021401715.5U CN212902825U (en) | 2020-07-15 | 2020-07-15 | Steel lining injection molding integral type mould pressing PFA tube sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021401715.5U CN212902825U (en) | 2020-07-15 | 2020-07-15 | Steel lining injection molding integral type mould pressing PFA tube sheet |
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| Publication Number | Publication Date |
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| CN212902825U true CN212902825U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021401715.5U Active CN212902825U (en) | 2020-07-15 | 2020-07-15 | Steel lining injection molding integral type mould pressing PFA tube sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11578926B2 (en) * | 2020-07-21 | 2023-02-14 | Cg Thermal, Llc | Corrosion resistant heat exchanger and tube sheet l'herefor |
-
2020
- 2020-07-15 CN CN202021401715.5U patent/CN212902825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11578926B2 (en) * | 2020-07-21 | 2023-02-14 | Cg Thermal, Llc | Corrosion resistant heat exchanger and tube sheet l'herefor |
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