Function of heat exchanger

Answer 1

There are actually many types of plate heat exchangers, and the YOJO brand has introduced brazed plate heat exchangers and gasket plate heat exchangers. Today is the home of brazed heat exchangers.

Brazed plate heat exchangers have no headers, tie rods or sealing gaskets, and the plates are brazed at a temperature of 1100 ° C. During the assembly stage, a piece of brazing material (usually copper, and nickel) is placed between the two plates, the package is compressed, and then baked for several hour.

BPHE is more compact and lighter, and the brazing material has the functions of both washer and frame. The intersection between the corrugations of the two coupling plates forms a dense network of contact points, which impart pressure tightness and generate vortex flow, thereby improving heat exchange. In this way, even at low nominal input speeds, the turbulence of the fluid is high, and for low flow rates, the fluid flows from laminar to turbulent.

Answer 2

Heat Exchanger - Use And Purpose

A heat exchanger is significant in the process of transferring heat from one chamber to another or from one industrial process to a secondary process. Most heating units for home heating include a heat exchanger that involves the transfer of fuel, i.e., oil, coal or natural gas, into heat for circulation and temperature control. Thus, most furnaces and boilers include a heat exchanger as part of the heating system.

Heat Exchanger - In Industrial Processes

A heat exchanger in an industrial process is a multi-chamber vessel designed at specific ranges of temperature, pressure and where applicable, fluid flow conditions. In certain industrial processes, heat exchangers circulate fluids that are flammable, toxic, dangerous and lethal to humans. This is the reason proper maintainence and precautions, such as draining and/or purging must be taken if a heat exchanger unit is opened for any reason.

Types of Heat Exchangers

There are several types of heat exchangers. Each of these types can be reconfigured according to specifications and use. There are shell type heat exchangers, front end stationary head types and rear end head types. How air or fluid is exchange by rate of flow is also a significant factor in efficiency of a heat exchanger. When purchasing a heat exchanger, to establish standard terminology for heat exchanger prior to an installation, the unit should be accompanied by a heat exchanger nonmenclature. This is basically identification of typical parts, connections and locations found in schematic diagrams for installation.

General Parts Of A Heat Exchanger

In most cases, a heat exchanger has a head, stationary or shell as well as tubes, stationary tubesheets, channel cover, flanges, impinger plate, support saddle and vent, drain and instrument connections. Manufacturers assign specific serial numbers to each heat exchanger that are unique for identification and replacement purposes. Generally, a furnace or boiler manufacturer provides an operations and maintenance manual that includes the type and serial number of the original heat exchanger. Replacement of a heat exchanger should be done by a professional, licensed HVAC specialist to avoid hazards.

Maintaining A Heat Exchanger

The heat exchanger unit should be regularly cleaned, calibrated and maintained.

Answer 3

An important factor in choosing a plate heat exchanger is to look at the heat transfer efficiency of the equipment. It is necessary to know how the equipment's working efficiency can directly reflect the heat transfer efficiency. And after knowing the heat transfer efficiency of the plate heat exchanger, it will get twice the result with half the effort.

1. The plate heat exchanger has high heat transfer efficiency and a large heat transfer area per unit volume, which is 2 to 5 times that of a conservative tube heat exchanger.

2. The heat exchange area can be reduced, so that the volume of the plate heat exchanger with the same effect of heat exchange is reduced, and the operating space is correspondingly reduced, which increases the occupied space and reduces the cost of civil construction. Because it is composed of many plates, it does not require much inspection space, which increases the total occupied space by 2 to 3 times that of a conservative heat exchanger.

3. In the case of coking projects with a range of 400,000 tons, the crude benzene condensation cooler in the crude benzene section will increase the heat exchange area and reduce the volume. Because it is arranged on the frame, the volume and inspection space are greatly reduced after adoption.

Plate heat exchangers have high heat transfer efficiency and are relatively practical heat exchange equipment. Yuanzhuo Equipment is a professional manufacturer of heat exchangers in Jiangsu. It has launched various types of heat exchanger equipment under the YOJO brand, focusing on plate heat exchanger business for more than 15 years.

Answer 4

The basic function of a heat exchanger is to transfer heat from one thing to another. This may be done through direct contact or it can be separated by a wall.