First, survey
The disc heat interchanger is the fluid - fluid, the fluid - steam
carries on the heat change the ideal equipment. It has the heat
transfer efficiency to be high, the heat los is small, the
structure compact dexterous, the area is small, the installment
clean is convenient, the application is widespread, service life
long and so on characteristics.
In the same pressure loss situation, its heat transfer coefficient
compared to tubular heat exchanger high 3-5 times, the area for the
tubular heat exchanger 1/3, the heat recovery rate may reach as
high as above 90%. The disc heat interchanger widely applies in
professions and so on metallurgy, petroleum, chemical industry,
food, drugs manufacture, ships, spinning and weaving, papermaking,
is the heating, cooling, the heat recovery, fast antiseptic and so
on use fine equipment.
Second, structure and external dimensions
The BR serial products, the complete machine assembly has the
ordinary -like structure (to take apart and wash operating mode to
use and the hanging structure not frequently) (takes apart and
washes frequent operating mode to use) two kinds. The ordinary
-like structure by the herringbone ripple slab, the gasket, the
compaction board, the high and low set bolt, the compaction bolt
and so on major parts is composed.
The hanging structure by the herringbone ripple slab, the gasket,
the fixed compaction board, the intermediate plate, the active
compaction board, the support, the high and low localization
crossbeam, the compaction bolt and so on major parts is composed.
Third, technical parameter and specification model expression
method
1, technical parameter
| | BR0.1 | BR0.2 |
O | 0.05 | 0.1 | 0.22 |
mm | 500168 | 660250 | 970330 |
mm | 0.8 | 0.8 | 0.8 |
mm | 38 | 60 | 75 |
mm | 28 | 38 | 46 |
| |
mm | 10 | 12 | 12 |
mm | 3.8 | 4.2 | 4.2 |
O | 0.55 | 410 | 1038 |
Mpa | 0.42 |
| 120160250 |
W/O | 20006000 |
2, specification model expression method:
Indicated: The herringbone disc heat interchanger, the single slab
heat transfer area 0.2O, passes through the first modification,
working pressure 1.6Mpa, the operating temperature 150, the single
plane nominal heat transfer area 20O, the flow combination form
225, in the formula member expresses the hot medium, the
denominator expresses the cold medium, 2 expression numbers of
passes have 2 regulations, is also the baffling number of times, 25
expressed that each regulation has 25 flow channels.
Fourth, flow principle of work
The disc heat interchanger as a result of the slab ripple surface's
special function, causes the fluid flows its speed size direction
unceasing change along the narrow curving channel, the cause fluid
when not the great speed of flow (Rc=200), aroused the intense end
to move, thus sped up the fluid boundary layer destruction,
strengthened the heat transfer process, sharpened the heat-transfer
capability effectively.
And enables it to have the structure to be compact, the metal
consumption quantity is low, the operation flexibility is big, the
heat los is small, the installment, the inspection take apart and
wash, the wearability to be strong conveniently, service life long
and so on prominent merit. Heat interchanger's flow is becomes by
many slabs according to certain craft and the consumer technology
work requirement assembly.
When assembly a board and the B board arrange alternately, between
the slab forms the netted channel four angle holes to form the
distribution pipe and the convergence tube, the gasket the cold hot
medium seal in the heat interchanger, simultaneously reasonable
will be also cold the hot medium to separate does not send the mix.
Inside channel cold thermal fluid gap flowing, may the adverse
current also be possible to be afloat, the cold th
