Zhilin Environmental Protection

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30

2024

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05

Zhilin Container Modular Intelligent Unit

The Zhilin box-type heat exchanger unit consists of five modules: heat exchanger module, circulation pump module, constant pressure water supply module, water treatment module, and control system. It is easy to install and debug, with intelligent and simple control operation, reliable operation, excellent performance, and high degree of automation; it features beautiful appearance, compact structure, and large indoor space.

Zhilin Container Modular Intelligent Unit

30

2021

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06

Knowledge and commissioning points of hot water heating systems

I. Common Causes of Leakage in the Heating Network Heater 1. Corrosion The heat exchange tubes of the heating network heater are made of alloy steel tubes and coated with a thin protective film. The protective film is chemically stable and not easily corroded. However, during operation, impurities sometimes mix into the circulating water, and these impurities are carried by the circulating water. The protective film enters the steel pipe and is damaged. In this way, the steel pipe comes into direct contact with the circulating water, causing electrochemical corrosion. In recent years, however, we have replaced the circulating water in our heating network with reverse osmosis water, improving the water quality and eliminating the hidden dangers of the water heater from the source, greatly improving the economic benefits of our heating.

Knowledge and commissioning points of hot water heating systems

21

2021

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06

How to optimize the heat transfer efficiency of plate heat exchangers

In recent years, plate heat exchanger technology has become increasingly mature. It features high heat transfer efficiency, small size, light weight, low fouling factor, easy disassembly and assembly, a wide variety of plate types, and a wide range of applications. It has been widely used in the heating industry. Plate heat exchangers are classified into detachable, welded, brazed, and plate-shell types according to their assembly methods. Detachable plate heat exchangers are more commonly used in heating projects due to their ease of disassembly and cleaning, allowing for flexible increase or decrease of the heat exchanger area. The heat transfer efficiency and pressure drop of the heat exchanger should be considered simultaneously, with appropriate selection and installation. The detachable plate heat exchangers are limited by the heat resistance of the rubber gasket.

How to optimize the heat transfer efficiency of plate heat exchangers

13

2020

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05

Tips to improve the efficiency of plate heat exchangers

Since ripples can generate turbulence in fluids at lower flow rates (when the Reynolds number is approximately 150), a higher surface heat transfer coefficient can be obtained. The surface heat transfer coefficient is related to the geometric structure of the plate ripples and the flow state of the medium. The shapes of the plates include herringbone, straight, and spherical, etc.

Tips to improve the efficiency of plate heat exchangers

13

2020

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05

What are the advantages of plate heat exchangers?

Cleaning and convenience. After removing the pressure plate of the plate heat exchanger, the plate bundle can be loosened, the plates removed, and mechanical cleaning performed. Simple modifications to the heat transfer area or flow combination only require adding (or reducing) plates to achieve the desired increase (or decrease) in heat transfer area. Lightweight. The plate thickness of the plate heat exchanger is only 0.6~0.8mm, while the heat transfer tube thickness of the shell and tube heat exchanger is 2.0~2.5mm; the shell of the shell and tube heat exchanger is much heavier than the structure of the plate heat exchanger. Under the same heat transfer mission, the plate heat exchanger requires a smaller heat transfer area than the shell and tube heat exchanger.

What are the advantages of plate heat exchangers?
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