Plastic tube grid for sectional heat exchanger

专利摘要:
Improved tube bundle-type heat exchanger comprising at least one tube base cast from a plastic material, such as poly laurin lactam, with a tube bundle cast in the tube base. Several optional features are also disclosed.
公开号:SU743599A3
申请号:SU772462907
申请日:1977-03-24
公开日:1980-06-25
发明作者:Хартманн Вернер
申请人:Свакопмунд Аг (Фирма)；
IPC主号:

专利说明:

(54) PLASTIC PIPE GRID OF A SECTIONAL HEAT EXCHANGER
The invention goes to heat engineering and can be used in heat exchangers. Tubular grids of heat exchangers with holes for pipes made of thermoplastic materials, such as polytetrafluoroethylene, are known, which have annular recesses and are sealed in the casing with packing gland packing of chemically resistant materials 1. The aim of the invention is to increase the durability and tightness of the tube sheet. This is achieved by the fact that the grid is made of polylaurinlactam and has a sealing ring on the periphery of the end surfaces; According to the pteri, the lattice has an annular collar with a conical sealing surface and a bar in the central part. FIG. 1 shows a longitudinal section of a tubular sectional heat exchanger with two tube grids in FIG. 2, section A-D in FIG. 1, is a top view of the grid. Pipe grids 1 and 2 are made of polyplaurinlactam. On the periphery of the end surface of the grille 1, sealing edges 3 are provided, with which the tube lattice is adjacent to the inner wall of the heat exchanger housing. The lattice 2. has a circumferential collar 5, adjacent a conical bevel to the end surface of the body, and in the central part of the plaque 6 with a hole 7 to lift the lattice. The plastic in the form of a melt is poured into the body where it solidifies. The resulting compound has good wear resistance and high tightness. The piping of polylaurinlactam provides resistance to most corrosive environments, has a good ability to recover.

权利要求:
Claims (3)
[1]
Invention Formula
1, A plastic tube lattice of a sectional heat exchanger with openings for pipes, fixed in it, in order to improve wear resistance
and tightness, it is made of .polylaurinlactam and is fitted with sealing annular edges along
the periphery of the end surfaces.
[2]
2, Lattice pop, 1, characterized in that a receiving socket is made in its central part.
[3]
3. Lattice pop-1, characterized in that it has a circumferential collar with a conical sealing surface and a bar in the central part. ,
Sources of information taken into account in the examination
1. USSR author's certificate No. 257522, cl. F 28 F. 21/06, 1967.

类似技术:

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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DE19762612514|DE2612514B1|1976-03-24|1976-03-24|TUBE FLOOR OF A PIPE HEAT EXCHANGER|

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