一种膜组件密封安装结构

Abstract

本实用新型公开了一种膜组件密封安装结构，包括上封头、筒体、下封头和固定在筒体内的上管板、下管板和薄管板，上管板和下管板之间的空间形成冷却水流动腔体，冷却水流动腔体内固定设置有多组膜元件，特点是膜元件包括膜管、冷管、帽盖和底托，冷管套在膜管外，冷管的上端和下端分别对应地与上管板、下管板固定连接，帽盖与上管板相螺接且与膜管的上端密封相抵，底托与薄管板固定连接且与膜管的下端密封相抵；优点是膜管的上、下两端分别采取不同的密封安装结构，使得膜元件的安装稳固性较好；而膜管的上端通过帽盖与上管板螺纹连接，便于打开膜元件的上端，结合膜管下端设置底托，使得膜管易于进行拆卸更换。

Claims

1. A membrane module sealing installation structure, comprising an upper end cap, a cylindrical body, a lower end cap, and an upper tube sheet, a lower tube sheet, and a thin tube sheet fixed within the cylindrical body, wherein the space between the upper and lower tube sheets forms a cooling water flow cavity, a cooling water outlet and a cooling water inlet are provided on the cavity wall of the cooling water flow cavity, the space between the thin tube sheet and the lower tube sheet forms a first condensate flow cavity, a condensate outlet is provided on the cavity wall of the first condensate flow cavity, and a plurality of membrane elements are fixedly disposed within the cooling water flow cavity, characterized in that: The membrane element includes a membrane tube, a cooling tube, a cap, and a base. The cooling tube is sleeved over the membrane tube, and the space between the cooling tube and the membrane tube forms a second condensate flow chamber. The upper and lower ends of the cooling tube are respectively fixedly connected to the upper tube sheet and the lower tube sheet. The cap is screwed to the upper tube sheet and seals against the upper end of the membrane tube. The cap has an axial discharge hole that communicates with the membrane tube. The base is fixedly connected to the thin tube sheet and seals against the lower end of the membrane tube. There is a gap between the base and the cooling tube, allowing the second condensate flow chamber to communicate with the first condensate flow chamber.

2. A membrane module sealing mounting structure according to claim 1, characterized in that: The cap has a radial through hole on its shoulder, which is connected to the discharge hole to prevent liquid residue. When the cap is tightened, its shoulder is not higher than the upper surface of the upper tube plate.

3. The membrane module sealing mounting structure according to claim 1, characterized by: The lower end of the cap is provided with a sealing groove, and a first sealing ring is provided in the sealing groove. The lower end of the cap abuts against the upper end of the membrane tube and is sealed by the first sealing ring.

4. The membrane module sealing mounting structure according to claim 1, characterized by: The cooling water flow chamber is provided with multiple baffles arranged vertically at intervals. A tie rod is screwed to the lower tube sheet. The baffles are sleeved on the tie rod. Two adjacent baffles are spaced apart by a spacer tube, which is also sleeved on the tie rod.

5. The membrane module sealing mounting structure according to claim 1, characterized by: The upper end of the base is provided with a groove, and a second sealing ring is provided in the groove. The upper end of the base abuts against the lower end of the membrane tube and is sealed by the second sealing ring.

6. The membrane module sealing mounting structure according to claim 1, characterized by: The membrane tube is a ceramic membrane tube.

7. The membrane module sealing mounting structure according to claim 1, characterized by: The outer surface of the cylinder is fixedly provided with hanging ears on both sides.

8. The membrane module sealing installation structure according to claim 1, characterized in that: The cooling water outlet is located above the cooling water inlet, so that cooling water flows in from below and out from above the cooling water flow cavity.

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