Spiral plate heat exchanger is a highly efficient heat exchanger equipment for steam - steam, gas - liquid, liquid - liquid, the liquid heat transfer. It is suitable for chemical, oil, solvents, pharmaceuticals, food, light industry, textile, metallurgy, steel rolling, coking and other industries. According to the structure can be divided into non-split type (Ⅰ type) spiral plate and removable (Ⅱ type, Ⅲ type) spiral plate heat exchanger.
Spiral plate heat exchanger using proven through years of practice, is indeed a
highly efficient heat transfer equipment, it applies to chemical, oil, solvents,
pharmaceuticals, food, light industry, textile, metallurgy, steel rolling,
coking and other industry applications. Draw contemporary international advanced
heat exchanger technology, the unique optimal design and manufacture of liquid -
liquid, steam - water heat exchanger. Product structure according to Swedish
technology, "Al Farah generation" company standards, end-use fold spiral plate
welding, "top from the column" special process for the charge storage capacitor
contactor, to improve the quality of the inner and outer "Baosteel" recognized,
can replace imports.
Can not be demolished by the spiral plate heat
exchanger is - Mechanized Division Standard JB/TQ724-89 can not be demolished
spiral plate heat exchanger in the form, the basic parameters and dimensions of
the design requirements, it has made a simple, low cost, small size and heat
transfer performance, etc., but also has its shortcomings, for example, can not
be machine washed, broken easy maintenance, etc., selection should be based on
the actual situation of the project specific selection of equipment to make the
most effective.
Structure and Performance
1, the device applies to:
liquid - liquid, gas - gas, gas - liquid convective heat transfer fluid can be
used for steam condensation and evaporation heat transfer, chemical, petroleum,
pharmaceutical, mechanical, electrical, light industry and textile industry can
be use.
2, this device is made by the two steel rolling, forming two
uniform spiral channel, two kinds of heat transfer can be full cut-off
counter-current flow for a small temperature difference between heat transfer,
easy and accurate recovery of low temperature heat source to control the outlet
temperature .
3, the shell is cut to a receiver on the structure of local
resistance is small, the curvature of the spiral channel is uniform, the fluid
flow in the device no major change to the total resistance, which can improve
the design flow so that with more high heat transfer capacity.
4, the
spiral channel ends are welded seal, sealing performance and reliable
structure.
5, is not easy to repair, especially when problems arise
within the board is extremely difficult to repair, some plant Weld the ends of
all the cars off the device and re-welding the plate and then roll flattening,
this consumption of working hours too, because selection spiral plate heat
exchanger corrosion is very important.
6, can not be machine washed,
production proven, and the general spiral plate heat exchanger tube heat
exchanger is not easy compared to plug, especially sand, shells and other small
suspended particles in the spiral channel impurity deposition is not easy,
analysis of the reasons; first, because it is a single impurity in the
deposition of a channel forming stream flow will also be increased to flush it,
the second accident because there are no dead ends spiral channel, impurities
likely to be out.
7, because the spiral channel with fixed channel
spacing from the support column, not a rejection of the fibrous impurities
(cotton, grass and sticks, leaves, etc.) into the heat exchanger inside.
8, the strict control of the cooling water outlet temperature in the temperature
scale below.
9, a common cleaning method is to use the net or caustic
steam blowing, blowing steam to take over, blow out the impurities from within
the device, many use the factory that this is an effective way.
Detachable (Ⅱ
type, Ⅲ type) spiral plate heat exchanger
Principle and structure can not
be demolished heat exchanger is basically the same, but can open channel
cleaning, sealed at both ends of the first seal. Especially for sticky, with
precipitation of liquid and liquid-liquid exchange, and gas-liquid, vapor
condensation. As the need to add a removable heat exchanger head, flange and
other components, equipment costs than larger heat exchanger can not be
removed.
Basic parameters
Spiral plate heat exchanger Nominal pressure
PN defined as 0.6,1,1.6,2.5 Mpa (ie the original 6,10,16,25 kg/cm2) (refers to
single-channel with the maximum working pressure) test pressure for the working
pressure of 1.25 times.
Spiral plate heat exchanger and the media access
part of the material, carbon steel for the Q235A, Q235AF, stainless steel acid
as SUS321, SUS304. Other materials can be selected according to user
requirements.
Permissible operating temperature: carbon steel, t = 0 ~
+350 ℃, stainless steel, acid t =- 40 ~ 500 ℃, temperature step-down range of
pressure vessels according to the relevant provisions. Use this equipment,
contact should be through the process when the calculation of fluid within the
device channel to reach the turbulent state. (Usually gas flow rate of liquid
flow rate 1m/Sec 10m/Sec).
Single piece of equipment can not meet the
requirements, you can use more than one combination, but the combination must
meet the following requirements:
Parallel combination of series
combination: the same equipment and channel spacing. Hybrid combination of: a
parallel channel, a channel in series.
Acid-resistant stainless steel PN0.6, 1.6MPa can not be demolished (Ⅰ type) spiral plate heat exchanger.
