一种防锈蚀供热管道接头

CN224516206UActive Publication Date: 2026-07-17HUBEI HAOLAN ENERGY IND CO LTD

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

Technical Problem

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.

Method used

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.

Benefits of technology

It effectively isolates the accumulation of moisture and oxygen at the flange joint, preventing corrosion and ensuring the safe operation of the heating system.

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Abstract

本实用新型涉及供热技术领域,尤其为一种防锈蚀供热管道接头,包括管道接头本体,所述管道接头本体的内侧中心位置插接有异型主插管,所述异型主插管左侧扩口外部固定连接有第一侧插管,所述异型主插管右侧扩口外部固定连接有第二侧插管,本实用新型中,通过设置的异型主插管、第一侧插管、第二侧插管、第二螺纹卡环、第二密封套、内螺纹环座、辅助导环、第一螺纹卡环和第一密封套,会方便防锈蚀供热管道接头能够在接通左右两侧热气管道之前,将内插管辅助结构预先装配到管道接头本体中,其能够在热气送入管道接头本体内部时,能够隔绝部分热气直接扩散到管道接头本体与热气管道的法兰连接处,避免管道接头本体的法兰接头处出现锈蚀的问题。
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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).