一种防锈蚀供热管道接头
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HAOLAN ENERGY IND CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-17
AI Technical Summary
Commercially available heating pipe joints are prone to accumulating moisture and oxygen at the flange joints, leading to corrosion and affecting the safe operation of the heating system.
A corrosion-resistant heating pipe joint was designed. The joint consists of a combination of a special-shaped main pipe, a side pipe, a sealing sleeve, and a flange, forming an inner pipe auxiliary structure. The sealing sleeve and fastening bolts work together to ensure that hot air flows inside the pipe joint, preventing hot air from diffusing to the flange connection and thus preventing corrosion.
It effectively isolates the accumulation of moisture and oxygen at the flange joint, preventing corrosion and ensuring the safe operation of the heating system.
Smart Images

Figure CN224516206U_ABST
Abstract
Claims
1. A corrosion-proof heating pipe joint comprising a pipe joint body (1), characterized in that: A special-shaped main insert (2) is inserted into the center of the inner side of the pipe joint body (1). A first side insert (3) is fixedly connected to the outside of the left flared end of the special-shaped main insert (2). A second side insert (4) is fixedly connected to the outside of the right flared end of the special-shaped main insert (2). A first flange (6) and a second flange (7) are fixedly connected to the left and right sides of the pipe joint body (1), respectively. A first threaded retaining ring (15) is fixedly connected to the side of the first side insert (3) near the middle position of the special-shaped main insert (2) and is threaded together with the center hole groove of the first flange (6). A second threaded retaining ring (5) is fixedly connected to the side of the two side inserts (4) near the middle position of the shaped main insert (2) and threaded together with the center hole groove of the second flange (7). A first sealing sleeve (16) and a second sealing sleeve (8) are respectively fitted into the two annular grooves opened on the outer surfaces of the first side insert (3) and the second side insert (4). An auxiliary guide ring (12) is fixedly connected to the side of the first side insert (3) and the second side insert (4) away from the middle position of the shaped main insert (2). An internal threaded ring seat (11) is fixedly connected to the outer surface of the middle tube of the shaped main insert (2).
2. A corrosion-proof heating pipe joint according to claim 1, characterized in that: Both ends of the pipe joint body (1) are fixedly connected with threaded inner tubes (9). A fastening bolt (10) is rotatably installed on the inner side of the threaded inner tube (9). The end of the fastening bolt (10) is threadedly connected to the inner threaded ring seat (11). The arrangement position of the inner threaded ring seat (11) and the arrangement position of the threaded inner tube (9) are arranged vertically opposite to each other.
3. A corrosion-proof heating pipe joint according to claim 1, characterized in that: Hot air pipes (13) are fitted on the outside of the first side insertion tube (3) and the second side insertion tube (4). A multi-hole flange disc component is fixedly connected to the opposite side of the two hot air pipes (13). The inner ring surface of the hot air pipe (13) is respectively fitted to the outer ring surface of the first sealing sleeve (16) and the second sealing sleeve (8).
4. A corrosion-proof heating pipe joint according to claim 1, characterized in that: The first flange (6) and the second flange (7) are provided with several fixing holes (14) on their surfaces. The first flange (6) and the second flange (7) are arranged in a left-right symmetrical structure along the vertical central axis of the pipe joint body (1).
5. A corrosion-proof heating pipe joint according to claim 1, characterized in that: The channel of the auxiliary guide ring (12) is set to gradually narrow towards the inlet end of the first side tube (3). The auxiliary guide ring (12) extends to the inside of the first side tube (3). The outer diameter of the flared openings on the left and right sides of the irregular main tube (2) matches the inner diameter of the first side tube (3) and the second side tube (4).