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Refrigeration Condenser Manufacturer

In a refrigeration system, the condenser is usually located between the radiator exhaust and a throttling device such as a capillary tube or electronic expansion valve. The working principle of the condenser is an exothermic process, so its temperature is usually higher. Inside the condenser, the refrigerant changes, usually absorbing air and taking away the high-temperature refrigerant gas, thereby forming dry humidity, and then liquefies under the humidity, and finally further cools to the same temperature as the surrounding air, thus playing a cooling role.

About Us
Zhejiang Brozer Refrigeration Technology Co., Ltd.
Zhejiang Brozer Refrigeration Technology Co., Ltd.
We are a professional Refrigeration Condenser Manufacturer and Refrigeration Condenser Company. Our main products cover all kinds of cold storage, fresh-keeping, other cold storage, constant temperature workshops, industrial chillers, various types of non-standard processes refrigeration... and other equipment. We also have a strong R&D team that independently developed box condensing units, open units, water-cooled compression condensing units, air-cooled condensing units, all-in-one and split units, low-temperature screw units, parallel units, industrial chillers, D series Air cooler, series double-sided side outlet air cooler, water flush frost air cooler series, air-cooled condenser series, etc. Products are exported to more than 80 countries and regions around the world.
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Condenser Industry knowledge

How is the flow path of the refrigerant in the condenser designed?

1. Basic structure and types of condensers
According to their different structures and installation methods, condensers can be divided into many types, such as horizontal shell and tube, vertical shell and tube, sleeve, spiral plate and plate condensers. Each type of condenser has its own unique features in the design of the refrigerant flow path.

Horizontal shell and tube condenser: This type of condenser adopts the method of external tube condensation, where the refrigerant vapor condenses on the outer surface of the tube, and the cooling water flows inside the tube. The refrigerant vapor enters from the top, condenses into liquid and flows out from the bottom. Its flow path design focuses on the uniform distribution and effective cooling of the refrigerant vapor outside the tube.
Vertical shell and tube condenser: The vertically installed condenser uses refrigerant vapor to enter from the upper middle part of the condenser shell, condenses into liquid in the space outside the tube, flows down along the outer wall of the tube, and finally gathers at the bottom and enters the liquid storage tank. The cooling water enters the heat exchange tube from the top, flows down along the tube wall and is discharged.
Shell-and-tube condenser: Shell-and-tube condenser is composed of tubes of different diameters, with small diameter tubes in large diameter tubes, forming a serpentine or spiral structure. Refrigerant vapor flows in the cavity between the inner and outer tubes and condenses into liquid on the outer surface of the inner tube.

2. Key points in the design of refrigerant flow path
Ensure sufficient heat exchange: The flow path of the refrigerant in the condenser should ensure that there is enough contact area and time between it and the cooling medium (such as water or air) to achieve sufficient heat exchange. This is usually achieved by optimizing the design of tube diameter, tube length, tube spacing and heat dissipation fins.
Reduce flow resistance: An increase in flow resistance will bring about an increase in refrigerant pressure drop, which in turn affects the overall performance of the refrigeration system. Therefore, when designing the flow path, it is necessary to arrange the pipeline and heat dissipation structure reasonably to reduce the flow resistance.
Evenly distribute the refrigerant: In order to ensure that the heat load of each part in the condenser is uniform, it is necessary to design a reasonable refrigerant distribution system so that the refrigerant vapor can enter each part of the condenser evenly and be evenly distributed along the flow path.
Consider the change of refrigerant state: As the refrigerant flows and cools in the condenser, its state gradually changes from gas to liquid. In this process, the physical properties of the refrigerant, such as density and viscosity, will change, and the influence of these factors needs to be fully considered when designing the flow path.

3. Specific implementation of flow path design
In practical applications, the design of the refrigerant flow path in the condenser is usually carried out in combination with the specific refrigeration system requirements and condenser types. For example, in a horizontal shell and tube condenser, the uniform distribution and effective cooling of the refrigerant can be achieved by optimizing the number of tube bundles, tube diameters, tube spacing, and setting water distribution tube baffles. In a shell-and-tube condenser, the flow path and heat transfer effect of the refrigerant can be optimized by adjusting parameters such as the inner and outer tube diameters, lengths, and spiral angles. With the development of numerical simulation technology, more and more refrigeration system designers have begun to use numerical simulation tools such as CFD (computational fluid dynamics) to assist in the design of the flow path of the refrigerant in the condenser. These tools can simulate the flow and heat transfer process of the refrigerant in the condenser, helping designers predict and optimize the performance of the flow path.