Plate Heat Exchanger

Definition of Plate Heat Exchanger:

Plate heat exchanger is a kind of high-efficiency heat exchanger, which is made up of a series of metal sheets with certain corrugated shape. Thin rectangular channels are formed between various plates, through which heat exchange is carried out.

Types of Plate Heat Exchangers:

There are mainly two types: detachable plate heat exchanger and fully welded plate heat exchanger. Fully welded plate heat exchanger products adopt welded seal design, thus avoiding the pressure and temperature limitation of rubber gasket seal of detachable plate heat exchanger and improving the reliability of equipment.

There are three types of plate: herringbone corrugated plate, horizontal straight corrugated plate and nodular plate.

Composition of Plate Heat Exchanger:

Plate-fin heat exchanger is composed of fins, partitions and seals. Fins are placed on one partition, and then another partition is placed on them, and both sides are enclosed by seals to form a channel. Each channel is stacked and arranged in different ways and brazed into a whole device, namely the core-plate bundle unit of plate-fin heat exchanger.

Plate-fin heat exchanger belongs to dividing wall type heat exchanger. In terms of the heat transfer mechanism, its biggest feature is its extended secondary heat transfer surface, so the heat transfer process is not only carried out on the primary heat transfer surface but also on the secondary heat transfer surface simultaneously, and the secondary heat transfer area is larger, usually 1.5 - 3 times the primary heat transfer surface area. The plate-fin heat exchanger has the secondary heat transfer area, which is incomparable to other heat exchange equipment.

In 2007, Longhua Technology Group (Luoyang) Company established the Tubular Heat Exchanger Division. Based on the guiding ideology of "High Starting Point, High Standard, High Quality and Continuous Innovation", the Company has accelerated the pace of technology industrialization and successfully launched a series of high-efficiency and compact plate heat exchanger products to meet the market demand, thereby providing clients with high cost-effective heat exchange solutions according to different process conditions (pressure, temperature, medium, etc.).

Longhua Plate Heat Exchange Products:

LHWP Series Fully Welded Plate Heat Exchanger

LHWP-F - F-type Fully Welded Plate Heat Exchanger (WPHE of Flex Modal)

LHWP-R - R-type Fully Welded Plate Heat Exchanger (WPHE of Removable Modal)

LHWP-B - B-type Fully Welded Plate Heat Exchanger (WPHE of Compact Block Modal)

LHWPE - Fully Welded Plate Evaporator

LHWPR - Air Preheater/Regenerator (WPHE For Recover Energy)

Technical Data

B-type Full Welded Plate Heat Exchanger (Compact Block Modal)

Structural form: Square shell for compact structure; connection by square flange, facilitating mechanical cleaning and maintenance;

Design temperature: ≤ 300℃;

Design pressure: ≤ 3.0 MPa;

Plate material: stainless steel, titanium, 2205, 254, etc.;

Plate thickness: 0.7 - 1.0 mm;

Corrugated form: Fishbone shape, with bubble structure on both sides;

Shell material: Carbon steel or other weldable materials;

Process combination: Cross flow or reverse cross flow.

Fully Welded Plate Evaporator

LHWPE fully welded plate evaporator is one of the new products launched by the Company in recent years. Compared with tubular evaporator, LHWPE has many advantages such as high heat transfer efficiency, compact structure, and unique distributor design, which is more conducive to film evaporation and so on. Falling film evaporation and rising film evaporation can be realized.

Technical Data:

Structural form: Square shell, connected by square flange, facilitating mechanical cleaning and maintenance;

Design temperature: ≤ 300℃;

Design pressure: ≤ 2.0 MPa;;

Plate material: stainless steel, titanium, 2205, 254, etc.;

Plate thickness: 0.7 - 1.0 mm;

Corrugated form: Bubble structure on both sides, without dead angle for cleaning;

Shell material: Carbon steel or other weldable materials.