Product Introduction
Spiral plate heat exchanger consists of metal thin slats, fixed-pitch column, pressure sleeve, end cap, receiver and other main parts. Two relatively long metal sheet strips welded with fixed-pitch columns are rolled into a spiral around a separate axis, forming a pair of mutually spaced spiral channels. After sealing the edges of the channels, the two liquids, hot and cold, can flow in their respective narrow channels and exchange heat through the thin plates between them.
Main Technical Parameters
Channel spacing: 6~40mm
Channel width: 500mm~2000mm
Single heat transfer area: 4㎡~800㎡
Heat transfer plate thickness: 2.5mm~6.0mm
Diameter of spiral body: Maximum 3000mm
Design Pressure: Maximum 5MPa
Design temperature: -50℃～400℃
Material: Commonly used materials for spiral body include carbon steel, stainless steel (with high molybdenum SS), duplex steel. In addition, there are titanium, Hastelloy and other precious metals need to be consulted separately.
Design standard: GB, ASME
Product structure
Spiral plate heat exchanger unique structural form, so that in the treatment of a large number of suspended solids in the working conditions have better than other types of heat exchangers outstanding performance.
Spiral plate heat exchanger main material for the plate, the structure is relatively simple, less manufacturing time, less machining, better than the use of welded seals, more reliable equipment.
The edge of the spiral channel can be closed by welding to form a non-detachable structure, and if the end cover is used, it can form a detachable structure for easy cleaning.
There are three types of channel closure: flap welding, liner welding and round steel welding. Among them, the flap method is characterized by fewer welding channels and does not require additional material.
Unique flow characteristics
The spiral single-channel structure of the spiral plate heat exchanger means that the fluid on each side occupies a channel, and the fluid can flow along the spiral curve trajectory in the curved channel.
The cross-sectional area of the flow of the spiral plate heat exchanger can be adjusted by the width of the rolled plate and the height of the positioning column. Therefore, spiral plate heat exchanger is the most suitable heat exchanger for working conditions.
Product features
1. Effective recovery of low-temperature heat energy: the two working media in the equipment can carry out full countercurrent heat exchange, suitable for small temperature difference heat transfer, waste heat recovery, make full use of low-temperature heat energy.
2. High heat transfer efficiency: the heat transfer efficiency is 1-3 times that of tube heat exchanger, and the heat transfer coefficient can reach up to 3300W/(m²k).
3. Strong operational reliability: non-detachable two-channel welded seal to ensure that the two media do not mix.
4. Small resistance: low pressure loss, handling large-capacity steam or gas; self-cleaning ability, because of its spiral flow of media, dirt is not easy to deposit.
Application Fields
For vapor-vapor, gas-liquid, liquid-liquid heat transfer, applicable to chemical, petroleum, solvent, pharmaceutical, food, light industry, textile, metallurgy, coking and other industries.
Purchase selection parameters required
Procurement of spiral plate heat exchanger need to provide the hot and cold side of the heat exchanger medium, flow rate, inlet and outlet temperatures and working pressure, if necessary, need to provide the cost of the medium, in order to facilitate the later design of the equipment selection offer!
