CN217330856U - Acid-resistant and high-temperature-resistant stainless steel seamless steel tube for heat exchanger - Google Patents
Acid-resistant and high-temperature-resistant stainless steel seamless steel tube for heat exchanger Download PDFInfo
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- CN217330856U CN217330856U CN202220461186.0U CN202220461186U CN217330856U CN 217330856 U CN217330856 U CN 217330856U CN 202220461186 U CN202220461186 U CN 202220461186U CN 217330856 U CN217330856 U CN 217330856U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a heat exchanger is with acidproof high temperature resistant stainless steel seamless steel pipe, including interior aluminum pipe, outer stainless steel sleeve and two spacing joints, interior aluminum pipe periphery array has the sand grip, outer stainless steel sleeve inner periphery has the recess corresponding with each sand grip, outer stainless steel sleeve arranges in on the interior aluminum pipe, the both ends of interior aluminum pipe still have connecting portion respectively, the connecting portion periphery is glossy cylinder, two connecting portions extend out outer stainless steel sleeve both ends respectively, two spacing joints fix respectively including the outer stainless steel sleeve in aluminum pipe both ends carry on spacingly, two spacing joints keep away from in the one end of connecting portion still have with the clamp plate on the corresponding tighrening ring of cavity spliced pole, the utility model discloses higher intensity has, corrosion-resistant, the assembly of being convenient for.
Description
Technical Field
The utility model relates to an acidproof high temperature resistant stainless steel seamless steel pipe for heat exchanger.
Background
The heat exchange tube of the heat exchanger in the prior art is generally an aluminum tube, and the heat exchange tube has poor strength, unsatisfactory corrosion resistance and short service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of above-mentioned prior art, provide one kind.
The technical scheme of the utility model is that: an acid-resistant and high-temperature-resistant stainless steel seamless steel tube for a heat exchanger comprises an inner aluminum tube, an outer stainless steel sleeve and two limiting joints;
the outer periphery of the inner aluminum pipe is arrayed with raised lines, each raised line extends along the axial direction of the inner aluminum pipe, the inner periphery of the outer stainless steel sleeve is provided with a groove corresponding to each raised line, the outer stainless steel sleeve is sleeved on the inner aluminum pipe, each raised line is matched with the corresponding groove, and the inner wall of the outer stainless steel sleeve is abutted to the outer wall of the inner aluminum pipe;
the two ends of the inner aluminum pipe are respectively provided with a connecting part, the periphery of the connecting part is a smooth cylinder, the connecting parts respectively extend out of the two ends of the outer stainless steel sleeve, the limiting connectors are respectively fixed at the two ends of the inner aluminum pipe to limit the outer stainless steel sleeve, the limiting connectors are further provided with a fastening ring corresponding to the hollow connecting column on the pressing plate in one end far away from the connecting parts, and the fastening ring protrudes out of the inner ring of the limiting connectors.
Specifically, the outer stainless steel sleeve is of a thin-wall seamless steel pipe integrated forming structure.
Further, the periphery of the outer stainless steel sleeve is coated with an acid-resistant coating.
Furthermore, the inner periphery of the inner aluminum pipe is provided with convex teeth in an array mode.
Optionally, the convex teeth are straight teeth or spiral convex teeth.
Preferably, the convex teeth are straight teeth.
Furthermore, bosses corresponding to the grooves are arranged on the periphery of the outer stainless steel sleeve, and the heat exchange fins are sleeved on the outer stainless steel sleeve and limited by the bosses.
Optionally, the two limit connectors are respectively welded to the two connecting portions.
Optionally, two concave rings are respectively arranged on the peripheries of the connecting parts, sealing rings are sleeved on the concave rings, the two limiting joints are respectively in interference fit with the corresponding connecting parts, and the sealing rings are located between the limiting joints and the connecting parts.
Furthermore, one end of the limiting joint facing the outer stainless steel sleeve is also provided with a circle of limiting convex ring, and the limiting convex ring is abutted against the end part of the outer stainless steel sleeve.
The utility model has the advantages that: the utility model discloses set up outer stainless steel sleeve in the periphery of aluminium inner tube, remedied the relatively poor, the not ideal shortcoming inadequately of corrosion resistance of aluminum pipe intensity, set up spacing joint in aluminium inner tube both ends and carry on spacingly in order to outer stainless steel sleeve to a cavity spliced pole on connecting aluminium inner tube and the clamp plate still has the assembly of being convenient for, the advantage of difficult weeping.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic structural diagram of the connection part of the spacing joint and the connecting part.
In the figure: the device comprises an inner aluminum pipe 1, an outer stainless steel sleeve 2, a limiting joint 3, a convex strip 4, a groove 5, a connecting part 6, a fastening ring 7, convex teeth 8, a boss 9, a sealing ring 10 and a limiting convex ring 11.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Referring to fig. 1 and 2, an acid-resistant and high-temperature-resistant stainless seamless steel tube for a heat exchanger comprises an inner aluminum tube 1, an outer stainless steel sleeve 2 and two limiting joints 3;
the outer periphery of the inner aluminum pipe 1 is provided with protruding strips 4 in an array mode, each protruding strip 4 extends along the axial direction of the inner aluminum pipe 1, the inner periphery of the outer stainless steel sleeve 2 is provided with a groove 5 corresponding to each protruding strip 4, the outer stainless steel sleeve 2 is sleeved on the inner aluminum pipe 1, each protruding strip 4 is matched with the corresponding groove 5, and the inner wall of the outer stainless steel sleeve 2 is abutted to the outer wall of the inner aluminum pipe 1; the outer stainless steel sleeve 2 has the advantages of high strength and low possibility of corrosion, so that the defects of poor strength and poor corrosion resistance of the aluminum pipe are overcome, and the structure of the convex strips 4 matched with the grooves 5 increases the heat exchange area of the inner aluminum pipe 1 and the outer stainless steel sleeve 2 on one hand, and also avoids the phenomenon that the outer stainless steel sleeve 2 rotates on the inner aluminum pipe 1 to cause the heat exchange fins fixed on the outer stainless steel sleeve 2 to fall off on the other hand;
as shown in fig. 3, two ends of the inner aluminum pipe 1 are respectively provided with a connecting portion 6, the periphery of the connecting portion 6 is a smooth cylinder, the two connecting portions 6 respectively extend out of two ends of the outer stainless steel sleeve 2, the two limiting joints 3 are respectively fixed at two ends of the inner aluminum pipe 1 to limit the outer stainless steel sleeve 2, a fastening ring 7 corresponding to a hollow connecting column on the pressing plate is further arranged in one end of each limiting joint 3 away from the connecting portion 6, and the fastening ring 7 protrudes out of the inner ring of the limiting joint 3; the structure of the split type limiting joint 3 is convenient for the assembly of the utility model, and the processing of the inner aluminum pipe 1 is simplified;
specifically, the outer stainless steel sleeve 2 is of a thin-wall seamless steel pipe integrated structure;
in another embodiment, the outer stainless steel sleeve 2 is also coated with an acid-resistant coating on the periphery to further enhance the acid resistance of the outer stainless steel sleeve 2;
in another embodiment, as shown in fig. 2, the inner periphery of the inner aluminum pipe 1 is further arrayed with convex teeth 8 to further enlarge the heat exchange area between the inner aluminum pipe 1 and the medium passing through the inner aluminum pipe 1, improve the heat exchange efficiency, and improve the strength of the inner aluminum pipe 1;
specifically, the convex teeth 8 are straight teeth or spiral convex teeth;
in this embodiment, the convex teeth 8 are preferably straight teeth, and although the spiral convex teeth have certain flow guiding and silencing effects, the processing is difficult, and the processing cost of the straight teeth is low;
in another embodiment, as shown in fig. 1 and 2, bosses 9 corresponding to the grooves 5 are arranged on the periphery of the outer stainless steel sleeve 2, each boss 9 is used for fixing and limiting the heat exchange fins, and the arrangement of the bosses 9 further increases the heat exchange area between the outer stainless steel sleeve 2 and the outside, which is beneficial to improving the heat exchange efficiency;
in another embodiment, the two limit joints 3 are respectively welded on the two connecting parts 6;
in another embodiment, as shown in fig. 1 and 3, the peripheries of the two connecting portions 6 are respectively provided with a concave ring, the concave ring is sleeved with a sealing ring 10, the two limit joints 3 are respectively in interference fit with the corresponding connecting portions 6, and the sealing ring 10 is located between the limit joint 3 and the connecting portion 6 to ensure the sealing performance of the connection therebetween and avoid leakage;
in another embodiment, as shown in fig. 1 and 3, the end of the limit joint 3 facing the outer stainless steel sleeve 2 is further provided with a circle of limit convex ring 11, and the limit convex ring 11 abuts against the end of the outer stainless steel sleeve 2 to avoid the limit joint 3 from being deeply installed to damage the limit joint 3 or the end of the outer stainless steel sleeve 2 during the assembly process.
Claims (10)
1. An acid-resistant and high-temperature-resistant stainless steel seamless steel tube for a heat exchanger is characterized by comprising an inner aluminum tube (1), an outer stainless steel sleeve (2) and two limiting joints (3);
the outer periphery of the inner aluminum pipe (1) is provided with protruding strips (4) in an array mode, each protruding strip (4) extends along the axial direction of the inner aluminum pipe (1), grooves (5) corresponding to the protruding strips (4) are formed in the inner periphery of the outer stainless steel sleeve (2), the outer stainless steel sleeve (2) is sleeved on the inner aluminum pipe (1), each protruding strip (4) is matched with the corresponding groove (5), and the inner wall of the outer stainless steel sleeve (2) is abutted to the outer wall of the inner aluminum pipe (1);
the both ends of interior aluminum pipe (1) still have connecting portion (6) respectively, connecting portion (6) periphery is glossy cylinder, two connecting portion (6) extend out outer stainless steel sleeve (2) both ends respectively, two spacing joint (3) are fixed respectively including aluminum pipe (1) both ends carry on spacingly to outer stainless steel sleeve (2) two still have in the one end of connecting portion (6) are kept away from in spacing joint (3) and the clamp plate on the corresponding tighrening ring (7) of cavity spliced pole, tighrening ring (7) are protruding on the inner ring of spacing joint (3).
2. The acid-resistant and high-temperature-resistant stainless seamless steel tube for the heat exchanger as claimed in claim 1, wherein the outer stainless steel sleeve (2) is a thin-walled seamless steel tube integrally formed structure.
3. The acid and high temperature resistant stainless steel seamless steel tube for heat exchanger as claimed in claim 2, wherein the outer periphery of said outer stainless steel sleeve (2) is further coated with an acid resistant coating.
4. An acid and high temperature resistant stainless steel seamless tube for heat exchanger as claimed in claim 3, wherein said inner aluminum tube (1) is further provided with a plurality of teeth (8) on its inner periphery.
5. The acid and high temperature resistant stainless steel seamless steel tube for a heat exchanger according to claim 4, wherein the convex teeth (8) are straight teeth or spiral convex teeth.
6. The acid and high temperature resistant stainless steel seamless steel tube for a heat exchanger as claimed in claim 5, wherein said convex teeth (8) are straight teeth.
7. The acid-and high temperature-resistant stainless seamless steel tube for a heat exchanger as claimed in claim 5, wherein the outer stainless steel sleeve (2) has bosses (9) corresponding to the grooves (5) at the periphery thereof, and the heat exchange fins are fitted over the outer stainless steel sleeve (2) and are retained by the bosses (9).
8. The acid and high temperature resistant stainless steel seamless steel tube for a heat exchanger according to claim 7, wherein two limit joints (3) are welded to the two connection parts (6), respectively.
9. The acid-resistant and high-temperature-resistant stainless steel seamless steel tube for the heat exchanger as claimed in claim 7, wherein the two connecting portions (6) are provided with concave rings on the outer peripheries respectively, the concave rings are sleeved with sealing rings (10), the two limit joints (3) are respectively in interference fit with the corresponding connecting portions (6), and the sealing rings (10) are positioned between the limit joints (3) and the connecting portions (6).
10. The acid-and high temperature-resistant stainless steel seamless tube for the heat exchanger as claimed in claim 8 or 9, wherein the end of the limiting joint (3) facing the outer stainless steel sleeve (2) is further provided with a circle of limiting convex ring (11), and the limiting convex ring (11) abuts against the end of the outer stainless steel sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220461186.0U CN217330856U (en) | 2022-03-03 | 2022-03-03 | Acid-resistant and high-temperature-resistant stainless steel seamless steel tube for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220461186.0U CN217330856U (en) | 2022-03-03 | 2022-03-03 | Acid-resistant and high-temperature-resistant stainless steel seamless steel tube for heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN217330856U true CN217330856U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220461186.0U Active CN217330856U (en) | 2022-03-03 | 2022-03-03 | Acid-resistant and high-temperature-resistant stainless steel seamless steel tube for heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085538A (en) * | 2023-04-10 | 2023-05-09 | 宁波福士汽车部件有限公司 | Automobile air conditioner pipe double-end pressing plate locking structure and automobile |
-
2022
- 2022-03-03 CN CN202220461186.0U patent/CN217330856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085538A (en) * | 2023-04-10 | 2023-05-09 | 宁波福士汽车部件有限公司 | Automobile air conditioner pipe double-end pressing plate locking structure and automobile |
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