Heat exchanger inner pipe protection structure

By adopting a limiting and locking structure in the heat exchanger inner tube protection structure, the problem of inconvenient disassembly of the existing protection structure is solved, enabling rapid disassembly and maintenance and enhancing the protection effect.

CN224230793UActive Publication Date: 2026-05-12NINGXIA BAOFENG ENERGY GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA BAOFENG ENERGY GROUP CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing heat exchanger inner tube protection structure is not convenient for quick disassembly and installation, which affects the efficiency of disassembly and assembly.

Method used

采用保护基座和保护套的限位卡合结构,通过环形连接槽与连接卡环、固定卡孔与卡块、安置卡环与卡槽、限位弹片与槽的限位卡合,实现保护基座和保护套的快速拆卸,利用不锈钢材料的加强作用。

Benefits of technology

It enables rapid disassembly and maintenance of the protective structure, improving disassembly and assembly efficiency and enhancing the protective effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224230793U_ABST
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Abstract

The utility model discloses a heat exchanger inner pipe protection structure which comprises a protection base, a plurality of evenly-distributed through holes are formed in the middle of the protection base, a plurality of evenly-distributed protection sleeves are arranged at the top end of the protection base in a clamped mode, each protection sleeve comprises a base layer, and a protection layer is fixedly arranged on the inner side of each base layer. The heat exchanger inner pipe protection structure comprises a protection sleeve, a protection layer is arranged at the bottom end of the protection sleeve, an anti-corrosion layer is fixedly arranged on the inner side of the protection layer, a fixing ring is arranged on the outer side of the bottom end of the protection base in a clamped mode, the protection base comprises a base plate, and a lower reinforcing plate is fixedly arranged at the bottom end of the base plate. The two limiting elastic pieces are separated from the two limiting grooves, then the protective sleeve can be quickly disassembled and replaced, the protective base is pulled upwards through large force, a plurality of fixing clamping blocks are separated from a plurality of fixing clamping holes, and then the protective structure can be quickly disassembled and maintained.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchangers, specifically a heat exchanger inner tube protection structure. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid. Heat exchangers play a vital role in chemical, petroleum, power, food, and many other industrial production processes. In chemical production, heat exchangers are widely used as heaters, coolers, condensers, evaporators, and reboilers. Currently, the inner tubes of heat exchangers are typically protected by protective structures. However, these existing protective structures hinder the quick disassembly and installation of the protective sleeve and the overall structure, thus affecting disassembly and assembly efficiency.

[0003] To address the aforementioned issues, a heat exchanger inner tube protection structure is proposed here. Utility Model Content

[0004] The purpose of this invention is to provide a heat exchanger inner tube protection structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger inner tube protection structure, including a protective base, a plurality of evenly distributed through holes in the middle of the protective base, a plurality of evenly distributed protective sleeves engaged at the top of the protective base, each of the protective sleeves including a base layer, a protective layer fixedly disposed on the inner side of the base layer, an anti-corrosion layer fixedly disposed on the inner side of the protective layer, a fixing ring engaged at the outer side of the bottom end of the protective base, the protective base including a base plate, a lower reinforcing plate fixedly disposed at the bottom end of the base plate, a lower wear-resistant layer fixedly disposed at the bottom end of the lower reinforcing plate, an upper reinforcing plate fixedly disposed at the top end of the base plate, and an upper wear-resistant layer fixedly disposed at the top end of the upper reinforcing plate.

[0006] The protective base is initially positioned by engaging with the connecting ring and the annular connecting groove. Further positioning of the protective base is achieved by engaging with several fixing holes and fixing blocks. Several mounting rings are initially positioned by engaging with several annular grooves. Further positioning of the protective sleeves is achieved by engaging with several limiting springs and limiting grooves. Pulling the protective sleeve upwards with a large force separates the two limiting springs from the two limiting grooves, facilitating quick disassembly and replacement of the protective sleeve. Pulling the protective base upwards with a large force separates several fixing blocks from several fixing holes, facilitating quick disassembly and maintenance of the protective structure.

[0007] Preferably, an annular connecting groove is provided at the connection between the fixing ring and the protective base, and a connecting ring is engaged inside the annular connecting groove. The connecting ring is fixedly connected to the protective base, and the limiting engagement between the annular connecting groove and the connecting ring facilitates the initial positioning of the protective base.

[0008] Preferably, the bottom end of the connecting ring is provided with a plurality of fixing holes, and the bottom of the inner side of the annular connecting groove is fixedly provided with a plurality of fixing blocks. The plurality of fixing holes are respectively engaged with the plurality of fixing blocks, and the limiting engagement of the plurality of fixing holes with the plurality of fixing blocks facilitates further limiting of the protective base.

[0009] Preferably, annular slots are provided at the connection points between the protective base and the plurality of protective sleeves, and each of the plurality of annular slots is fitted with a mounting ring. The mounting rings are fixedly connected to the plurality of protective sleeves respectively, and the plurality of mounting rings are engaged with the plurality of annular slots to facilitate the initial positioning of the plurality of protective sleeves.

[0010] Preferably, each of the plurality of mounting rings has a mounting groove on both sides, and each of the plurality of mounting grooves has a limiting spring fixedly installed inside. Each of the plurality of annular grooves has a limiting groove on both sides of its inner wall, and each of the plurality of limiting springs engages with the plurality of limiting grooves. The engagement of the plurality of limiting springs with the plurality of limiting grooves facilitates further limiting of the plurality of protective sleeves.

[0011] Preferably, several protective sleeves are respectively provided corresponding to several through holes, and the combination of several through holes and several protective sleeves facilitates the limiting protection of the heat exchange inner tube.

[0012] Preferably, the thickness of the protective base is 10mm, and the height of each of the protective sleeves is 30mm.

[0013] Preferably, the diameter of the protective base is 1030 mm.

[0014] Preferably, the inner diameter of the protective sleeve is 26mm and the outer diameter of the protective sleeve is 30mm.

[0015] Preferably, both the lower reinforcing plate and the upper reinforcing plate are made of stainless steel, which has high hardness and good reinforcing effect.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The protective base is initially positioned by engaging with the connecting ring and the annular connecting groove. Further positioning of the protective base is achieved by engaging with several fixing holes and fixing blocks. Several mounting rings are initially positioned by engaging with several annular grooves. Further positioning of the protective sleeves is achieved by engaging with several limiting springs and limiting grooves. Pulling the protective sleeve upwards with a large force separates the two limiting springs from the two limiting grooves, facilitating quick disassembly and replacement of the protective sleeve. Pulling the protective base upwards with a large force separates several fixing blocks from several fixing holes, facilitating quick disassembly and maintenance of the protective structure. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is an enlarged view of part A of this utility model;

[0021] Figure 4 This is an enlarged view of part B of the present invention;

[0022] Figure 5 This is a structural diagram of the protective sleeve of this utility model;

[0023] Figure 6 This is a structural diagram of the protective base of this utility model.

[0024] In the diagram: 1. Protective base; 101. Base plate; 102. Lower reinforcing plate; 103. Upper reinforcing plate; 104. Lower wear-resistant layer; 105. Upper wear-resistant layer; 2. Protective sleeve; 21. Base layer; 22. Protective layer; 23. Anti-corrosion layer; 3. Through hole; 4. Fixing ring; 5. Annular groove; 6. Placement ring; 7. Mounting groove; 8. Limiting spring; 9. Limiting groove; 10. Annular connecting groove; 11. Connecting ring; 12. Fixing hole; 13. Fixing block. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-6This utility model provides a heat exchanger inner tube protection structure, including a protective base 1. The protective base 1 has several evenly distributed through holes 3 in its middle. Several evenly distributed protective sleeves 2 are engaged at the top of the protective base 1. Each protective sleeve 2 includes a base layer 21. A protective layer 22 is fixedly disposed on the inner side of the base layer 21, and an anti-corrosion layer 23 is fixedly disposed on the inner side of the protective layer 22. A fixing ring 4 is engaged at the outer side of the bottom end of the protective base 1. The protective base 1 includes a base plate 101. A lower reinforcing plate 102 is fixedly disposed at the bottom end of the base plate 101, and a lower wear-resistant layer 104 is fixedly disposed at the bottom end of the lower reinforcing plate 102. An upper reinforcing plate 103 is fixedly disposed at the top end of the base plate 101, and an upper wear-resistant layer 105 is fixedly disposed at the top end of the upper reinforcing plate 103. The structure is connected to the connecting ring via an annular connecting groove 10. The limiting engagement of 11 facilitates the initial limiting of the protective base 1. The limiting engagement of several fixing holes 12 with several fixing blocks 13 facilitates the further limiting of the protective base 1. The limiting engagement of several mounting rings 6 with several annular grooves 5 facilitates the initial limiting of several protective sleeves 2. The limiting engagement of several limiting springs 8 with several limiting grooves 9 facilitates the further limiting of several protective sleeves 2. By using a large force to pull the protective sleeve 2 upward, the two limiting springs 8 are separated from the two limiting grooves 9, thereby facilitating the quick disassembly and replacement of the protective sleeve 2. By using a large force to pull the protective base 1 upward, the several fixing blocks 13 are separated from the several fixing holes 12, thereby facilitating the quick disassembly and maintenance of the protective structure.

[0027] An annular connecting groove 10 is provided at the connection between the fixed ring 4 and the protective base 1. A connecting ring 11 is engaged inside the annular connecting groove 10. The connecting ring 11 is fixedly connected to the protective base 1. Several fixing holes 12 are provided at the bottom of the connecting ring 11. Several fixing blocks 13 are fixedly provided at the bottom of the inner side of the annular connecting groove 10. The several fixing holes 12 are engaged with the several fixing blocks 13 respectively. An annular groove 5 is provided at the connection between the protective base 1 and several protective sleeves 2. A placement ring 6 is engaged inside the several annular grooves 5. The several placement rings 6 are fixedly connected to the several protective sleeves 2 respectively. An installation groove 7 is provided on both sides of the several placement rings 6. A limiting spring 8 is fixedly provided inside the several installation grooves 7. A limiting groove 9 is provided on both sides of the inner wall of the several annular grooves 5. The several limiting springs 8 are engaged with the several limiting grooves 9 respectively.

[0028] In use, the protective base 1 is initially limited by the engagement of the annular connecting groove 10 with the connecting ring 11, the protective base 1 is further limited by the engagement of several fixing holes 12 with several fixing blocks 13, the protective sleeves 2 are initially limited by the engagement of several placement rings 6 with several annular grooves 5, and the protective sleeves 2 are further limited by the engagement of several limiting springs 8 with several limiting grooves 9.

[0029] Several protective sleeves 2 are respectively set with several through holes 3. The thickness of the protective base 1 is 10mm, the height of the several protective sleeves 2 is 30mm, the diameter of the protective base 1 is 1030mm, the inner diameter of the protective sleeve 2 is 26mm, the outer diameter of the protective sleeve 2 is 30mm, and the lower reinforcing plate 102 and the upper reinforcing plate 103 are both made of stainless steel.

[0030] In use, the combination of several through holes 3 and several protective sleeves 2 facilitates the limiting protection of the heat exchange inner tube. The stainless steel material has high hardness and good reinforcing effect.

[0031] In this embodiment, the fixing ring 4 is fixed inside the heat exchanger. The annular connecting groove 10 engages with the connecting snap ring 11 to initially limit the protective base 1. Several fixing holes 12 engage with several fixing blocks 13 to further limit the protective base 1. Several placement snap rings 6 engage with several annular slots 5 to initially limit the protective sleeves 2. Several limiting springs 8 engage with several limiting slots 9 to further limit the protective sleeves 2. By pulling the protective sleeves 2 upward with a large force, the two limiting springs 8 separate from the two limiting slots 9, thus facilitating the quick disassembly and replacement of the protective sleeves 2. By pulling the protective base 1 upward with a large force, the several fixing blocks 13 separate from the several fixing holes 12, thus facilitating the quick disassembly and maintenance of the protective structure.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat exchanger inner tube protection structure, comprising a protection base (1), characterized in that: The protective base (1) has several evenly distributed through holes (3) in the middle. Several evenly distributed protective sleeves (2) are engaged at the top of the protective base (1). Each of the protective sleeves (2) includes a base layer (21). A protective layer (22) is fixedly provided on the inner side of the base layer (21). An anti-corrosion layer (23) is fixedly provided on the inner side of the protective layer (22). A fixing ring (4) is engaged on the outer side of the bottom end of the protective base (1). The protective base (1) includes a base plate (101). A lower reinforcing plate (102) is fixedly provided at the bottom end of the base plate (101). A lower wear-resistant layer (104) is fixedly provided at the bottom end of the lower reinforcing plate (102). An upper reinforcing plate (103) is fixedly provided at the top end of the base plate (101). An upper wear-resistant layer (105) is fixedly provided at the top end of the upper reinforcing plate (103).

2. The heat exchanger inner tube protection structure according to claim 1, characterized in that: An annular connecting groove (10) is provided at the connection between the fixing ring (4) and the protective base (1). A connecting ring (11) is engaged inside the annular connecting groove (10), and the connecting ring (11) is fixedly connected to the protective base (1).

3. The heat exchanger inner tube protection structure according to claim 2, characterized in that: The bottom end of the connecting ring (11) is provided with a number of fixing holes (12), and the bottom of the inner side of the annular connecting groove (10) is fixedly provided with a number of fixing blocks (13), and the number of fixing holes (12) are respectively engaged and connected with the number of fixing blocks (13).

4. The heat exchanger inner tube protection structure according to claim 1, characterized in that: An annular groove (5) is provided at the connection between the protective base (1) and the several protective sleeves (2). The interior of each of the several annular grooves (5) is fitted with a mounting ring (6), and the several mounting rings (6) are fixedly connected to the several protective sleeves (2).

5. The heat exchanger inner tube protection structure according to claim 4, characterized in that: Each of the several mounting rings (6) has a mounting groove (7) on both sides, and each of the several mounting grooves (7) has a fixed limiting spring (8) inside. Each of the several annular grooves (5) has a limiting groove (9) on both sides of its inner wall, and each of the several limiting springs (8) is engaged with the several limiting grooves (9).

6. The heat exchanger inner tube protection structure according to claim 1, characterized in that: Several protective sleeves (2) are respectively provided with several through holes (3).

7. The heat exchanger inner tube protection structure according to claim 1, characterized in that: The thickness of the protective base (1) is 10mm, and the height of each of the protective sleeves (2) is 30mm.

8. The heat exchanger inner tube protection structure according to claim 1, characterized in that: The diameter of the protective base (1) is 1030 mm.

9. The heat exchanger inner tube protection structure according to claim 1, characterized in that: The inner diameter of the protective sleeve (2) is 26mm, and the outer diameter of the protective sleeve (2) is 30mm.

10. A heat exchanger inner tube protection structure according to claim 1, characterized in that: Both the lower reinforcing plate (102) and the upper reinforcing plate (103) are made of stainless steel.