一种化工反应器用磁性液体密封设备

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By using heat sinks to increase the heat dissipation area and a dustproof mesh cover design in the chemical reactor, the problems of low heat dissipation efficiency and difficult cleaning of magnetic liquid sealing devices under high temperature conditions are solved, achieving efficient heat dissipation and stable sealing, and simplifying the maintenance process.

CN224515950UActive Publication Date: 2026-07-17WUXI QUANSHIQUAN FLUID TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: WUXI QUANSHIQUAN FLUID TECH CO LTD
Filing Date: 2025-08-04
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

In existing chemical reactors, magnetic liquid sealing devices are prone to dust accumulation under high-temperature conditions, which reduces heat dissipation efficiency and affects sealing stability. Furthermore, traditional air-cooled structures are complex and difficult to apply in applications where axial length is limited.

Method used

The heat sink increases the heat dissipation area, and the mesh cover is designed to prevent dust. The support rod and the bottom ring are fitted together with a rack and pinion drive and a ratchet and pawl locking device to enable quick disassembly of the mesh cover and simplify cleaning and maintenance.

Benefits of technology

It improves heat dissipation efficiency, prevents dust accumulation, ensures sealing stability, and simplifies the cleaning and maintenance process.

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Abstract

本申请涉及反应器技术领域，公开了一种化工反应器用磁性液体密封设备，包括密封壳体，密封壳体的上下两侧表面均嵌入固接有轴承，两个轴承的内部共同安装有转轴，密封壳体的内部位于两个轴承之间设置有密封机构，密封壳体的外部从上往下固定套接有多个散热片；本实用新型通过散热片显著增大散热表面积，高效导出磁性液体与转轴摩擦产生的热量，同时利用网罩覆盖散热片外围，有效避免灰尘杂质积聚形成隔热层而降低散热效率；该网罩通过支撑杆与底环的间隙配合实现垂直导向，并借助齿条齿轮传动机构与棘轮棘爪锁定装置的协同作用，仅需单次拉动棘爪脱离啮合即可快速向上提拉拆卸网罩，大幅简化清洁维护流程。

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Claims

1. A magnetic liquid sealing device for a chemical reactor, comprising a sealing shell (1), wherein bearings (2) are embedded and fixedly connected to the upper and lower surfaces of the sealing shell (1), and a rotating shaft (3) is installed in the interior of the two bearings (2), and a sealing mechanism (4) is provided inside the sealing shell (1) between the two bearings (2), and multiple heat sinks (9) are fixedly sleeved on the exterior of the sealing shell (1) from top to bottom. characterized in that A top ring (10) is movably sleeved on the outside of the sealed housing (1) above the uppermost heat sink (9). A mesh cover (11) is fixed to the outer edge of the lower surface of the top ring (10). Support rods (12) are fixed to both the left and right ends of the lower surface of the mesh cover (11). A bottom ring (13) is fixedly sleeved on the outside of the sealed housing (1) below the lowermost heat sink (9). An installation mechanism (14) is provided on both the front and rear surfaces of the mesh cover (11) and the bottom ring (13).

2. A magnetic liquid sealing device for a chemical reactor according to claim 1, characterized in that, The sealing mechanism (4) includes a permanent magnet (5) and pole shoes (6) located on the upper and lower sides of the permanent magnet (5). Multiple pole teeth (7) are fixed on the inner surface of the pole shoes (6) from top to bottom. The inner side of the pole teeth (7) is filled with magnetic liquid (8).

3. A magnetic fluid sealing device for a chemical reactor according to claim 1, wherein The mounting mechanism (14) includes a rack (15) and a U-shaped seat (16) located to the left of the rack (15). A support block (17) is fixedly connected to the upper end of the rack (15). A rotating rod (18) is rotatably connected to the side surface of the U-shaped seat (16) away from the bottom ring (13). A gear (19) is fixedly sleeved on the outside of the rotating rod (18) located inside the U-shaped seat (16), and a ratchet (20) is fixedly sleeved on the outside of the rotating rod (18) located outside the U-shaped seat (16). An adjusting member (21) is provided on the side surface of the U-shaped seat (16) away from the bottom ring (13) and above the rotating rod (18).

4. A magnetic fluid sealing device for a chemical reactor according to claim 3, wherein The adjusting component (21) includes a spring (22), with a fixing block (23) and a pawl (24) fixedly connected to the upper and lower ends of the spring (22), respectively. A fixing rod (25) is rotatably connected to the end of the pawl (24) away from the rotating rod (18).

5. A magnetic fluid sealing device for a chemical reactor according to claim 1, wherein The rotating shaft (3) is located inside the sealing mechanism (4), and the support rod (12) moves vertically through the bottom ring (13).

6. A magnetic liquid sealing device for a chemical reactor according to claim 2, wherein The permanent magnet (5) and the pole shoe (6) are both fixed to the inner side of the sealed housing (1), and the permanent magnet (5) and the pole shoe (6) are both located outside the rotating shaft (3). The magnetic liquid (8) is attached to the outer surface of the rotating shaft (3).

7. A magnetic fluid sealing device for a chemical reactor according to claim 3, wherein The U-shaped seat (16) is fixed to one side surface of the bottom ring (13), the support block (17) is fixed to one side surface of the mesh cover (11), and the gear (19) is meshed with the rack (15).

8. A magnetic fluid sealing device for a chemical reactor according to claim 4, wherein The pawl (24) is engaged with the ratchet (20), and the fixing block (23) and the fixing rod (25) are both fixed to the side surface of the U-shaped seat (16) away from the bottom ring (13).