The spiral plate heat exchanger is a kind of high efficiency heat
exchanger equipment, which is suitable for steam, steam, liquid,
liquid and liquid, and heat transfer to the liquid. It is suitable
for chemical, petroleum, solvent, medicine, food, light industry,
textile, metallurgy, rolling, coking and other industries.
According to the structure form, it can be divided into non
detachable (type I) spiral plate type and detachable type (type II
type and type III type) spiral plate heat exchanger.
The spiral plate heat exchanger is proved to be an efficient heat
exchanger through many years of practice. It is suitable for
chemical, petroleum, solvent, medicine, food, light industry,
textile, metallurgy, steel rolling, coking and other industries.
The heat exchanger absorbs the modern international advanced
technology, and is specially designed and made of liquid - liquid,
steam - water heat exchanger.
The process of product structure by the Swedish "arfara generation"
standard, spiral plate surface using hem argon arc welding, "from
the top of column" special process for the capacitance storage
contactor, improve the internal and external quality of "Baosteel"
recognition, can replace the imported.
Detachable spiral heat exchanger is press - machine of standard
JB/TQ724-89 detachable spiral heat exchanger, and the design
requirements of the basic parameters and dimensions, it has simple
manufacture, low cost, has the advantages of small volume and good
heat transfer performance, but also has its shortcomings, such as
not mechanical cleaning is broken, it is not easy to repair,
selection should be based on the actual situation of the project
selection of specific equipment to make the most effective.
Structure and properties
1, the device is suitable for liquid liquid gas air liquid
convection heat transfer, which can be used for steam condensation
and liquid evaporation heat transfer. Chemical industry, petroleum,
medicine, machinery, power, light industry and textile industries
can be selected.
2, the device is made up of two steel rolls, forming two uniform
spiral channels. Two heat transfer cut-off can carry out full
countercurrent flow, which is suitable for heat transfer with small
temperature difference, easy to recover low-temperature heat source
and accurately control outlet temperature.
3, the nozzle on the shell is tangential structure, the local
resistance is small, the curvature of the spiral channel is
uniform, the flow of fluid in the device does not have large
reversing, and the total resistance is small, so it can improve the
design speed and make it have high heat transfer capability.
4. The end face of the spiral channel is welded and sealed. The
sealing performance is good and the structure is reliable.
5, it is not easy to overhaul, especially when the internal plate
is in trouble. It is extremely difficult to repair. Some factories
are going to lose all the welding seam at the two ends of the
equipment. Then the plate will be flattened and repaired before
being rolled up. The consumption time is too large, because the
selection of spiral plate heat exchanger is very important.
6, can not be mechanical cleaning, practice has proved that the
spiral plate heat exchanger and tubular heat exchanger is not
easily blocked, especially in sediment, small shells and other
suspended particles impurities deposition within the spiral
channel, analyzes the reason; because it is the deposition of
single channel impurity in the passage the formation of a turnover
flow also will increase to put it away, because there is no dead
two accident in a spiral channel, easy to be out of impurities.
7, because of the distance between the supporting channels of the
fixed distance column in the spiral channel, there must be no fiber
like impurities (cotton yarn, straw stick, leaf and so on) into the
8, strictly control the cooling water outlet temperature below the
9, the commonly used cleaning methods are steam blowing or caustic
washing, steam blowing into the nozzle and blowing the impurities
out of the equipment. Many factories think