Features of fully welded plate heat exchangers

Fully Welded Plate Heat Exchanger, the entire plate bundle is made of special stainless steel, welded by argon arc welding, without any non-metallic materials for sealing, with high temperature resistance, pressure resistance and corrosion resistance, suitable for Most of the heat exchange process occasions where conventional plate heat exchangers cannot be applied are heat exchange equipment that combines the advantages of detachable plate heat exchangers and shell-and-tube heat exchangers.

Its heat exchange plate is pressed by a special mold, the surface is smooth and not easy to scale, and its special corrugated design makes the fluid turbulent even at a low flow rate, with high heat transfer efficiency, compact structure, and convenient use. It is widely used in chemical industry, steel mill, power plant, metallurgy and other industrial fields.

From the appearance, the detachable Plate Heat Exchanger can be directly disassembled. Usually, the four inlet and outlet positions are on the same side frame plate, while the four ports of the fully welded plate heat exchanger are the up, down, left and right positions on the side. , the frame itself is not perforated.

Features of fully welded plate heat exchanger:

1. High heat transfer efficiency

In the plate structure, a special corrugated structure shape and spacing are adopted, and the fluid flow form is complex, and strong turbulent flow can be generated at a low flow rate, so that the heat transfer capacity has been exerted to a certain extent, and a higher heat transfer performance. Compared with the shell-and-tube heat exchanger, the total heat transfer coefficient is 3-5 times that of the shell-and-tube heat exchanger; under the same heat exchange conditions, its heat transfer area is only 1/3-1/4 of the shell-and-tube heat exchanger; In addition, the fouling coefficient of the all-welded plate heat exchanger is only 1/5 of that of the shell-and-tube heat exchanger, and the heat transfer performance is excellent.

2. Wide range of application

Its special all-welding process does not require non-metallic materials for sealing, and its structural design is diversified, which is applicable under high temperature and pressure.

3. Small pressure loss

The special plate corrugated structure makes the fluid fill the flow channel formed between the plates, and all the plate surfaces participate in the heat exchange. The medium can flow in the flow channel without dead zone, which can reduce the loss of kinetic energy to a certain extent. consumption, saving operating costs.

4. Compact structure, small footprint

The fully welded plate heat exchanger has a compact structure and a large expansion and contraction range for applicable space conditions. The heat exchange area per unit area is 2-5 times that of the shell-and-tube type, and there is no need to reserve maintenance space for extracting the tube bundle. When the same heat exchange task is achieved, the floor area of the fully welded plate heat exchanger is about 1/6-1/10 of the type heat exchanger, which can greatly reduce the cost of infrastructure investment.

5. Not easy to scale

The heat exchange plate is welded around. During operation, affected and restricted by thermal stress, the inner side of the plate is free to expand and contract, so the surface of the plate is not easy to scale.