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Floating Head Type Heat Exchanger

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Floating Head Type Heat Exchanger

Brand: WST

Packaging: Wooden box

Supply Ability: 10000

Min. Order: 1 Bag/Bags

Certificate: ISO9001 ASME PED

New type of floating head type heat exchanger end structure, which comprises a cylinder cover, outside side flange, tube sheet, circle hook, floating head cover and outer cover and screw hole, steel and other components, and is characterized in that...
China Floating Head Type Heat Exchanger of with CE
China Floating Head Type Heat Exchanger Suppliers

New type of Floating Head Type Heat Exchanger end structure, which comprises a cylinder cover, outside side flange, tube sheet, circle hook, floating head cover and outer cover and screw hole, steel and other components, and is characterized in that the outer cover is provided with a concave inner surface side of the flange or ladder type sealing surface, and the outer sealing surface in the near the side drilling and threading screw or welding a plurality of uniform, floating cancel hook ring and related parts, tube plate sealing groove for the original concave groove and the other to open a center as the center of the tube plate at the same end, trapezoidal grooves is slightly larger than the outer diameter of the tube radius, and the tube plate split grooves only with trapezoidal grooves communicated, but not with the concave groove communicated.

Between the concave and trapezoidal grooves and drilling threading or welding a plurality of screw set uniform, floating head flange is convex and ladder type boss double seal, pass partition with ladder type boss and communicated with the wide flange at the same end, and the convex type and ladder type boss and pass partition respectively with the tube plate and the concave trapezoidal grooves and matching corresponding split grooves, the floating head flange and use spherical segmenthead matched welded to the flange of floating head cover, screw and tube plate or screw thread hole matched with a bolt or nut fastening clamp, concave and tube sheet ladder type groove and split groove and gasket, the structure when necessary, may be appropriate to increase the thickness and the diameter of the cylinder and the inner diameter of the tube sheet, and a corresponding change to increase the related parts of the size; the other configuration without external auxiliary steel ring, the inner diameter of the ring body is larger than the outer diameter of the steel tube sheet. The circle is arranged on one end of the flange and the outer cover side of the flange side concave or a ladder with a sealing surface and sealing, the other end is provided with a flange or other structure and tube plate and the concave groove or cylindrical sealing gasket.

With the development of economy, various types and types of heat exchangers are developing rapidly. In order to meet the needs of development, China has established standards for certain types of heat exchangers, forming a series of. Perfect Heat Exchanger in the design or selection should meet the following basic requirements:
(1) to achieve the reasonable process conditions;
(2) the structure is safe and reliable;
(3) ease of manufacture, installation, operation and maintenance;
(4) economically reasonable.
Floating head on one end of the heat exchanger tube plate and shell and tube plate is fixed, the other end of the floating free in the shell, shell and tube bundle is free to expand, so when the larger temperature difference between the two media, between the bundle and shell does not produce thermal stress. Floating head removable side structure is designed, so that control can be easily inserted into or out of the housing. (can also be designed not detachable). This provides convenience for maintenance and cleaning. However, the structure of the heat exchanger is complex, and the floating end of the small cover in the operation can not know the leakage. Therefore, the installation should pay special attention to its seal.
Floating head structure of floating head heat exchanger, according to different requirements can be designed into a variety of forms, in addition to considering the bundle can move freely in the equipment, must also be considered part of the installation and maintenance, floating head cleaning convenient.
In the design must be considered when the outer diameter of Do tube sheet. The outer shell diameter should be less than Di, the gap b1=3~5mm is generally recommended to tube sheet and the inner wall of the casing. So, when the demolition of the floating head hook ring, can be extracted from the shell tube. In order to facilitate maintenance, cleaning. Floating head cover can be loaded in tube bundle assembly, so the design should consider the necessary space in the assembly of the floating head cover.
Hook and loop to ensure sealing, prevent leakage on the medium plays an important role in the floating end. With the development of heat exchanger design, floating head manufacturing technology, and the use of the accumulation of long experience, structure of circle hook is improved and not perfect.
Hook ring is generally for the open structure, the requirements of reliable sealing, simple structure, compact, easy to manufacture and easy disassembly and assembly.
Floating head heat exchanger with its high reliability and wide adaptability, in the long-term use of the process has accumulated rich experience, and constantly promote the development of its own. So far in all kinds of heat exchanger is still dominant.

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