ZHUJI CITY JIAERDA MACHINERY CO., LTD.
As an expert in Heat Exchanger Manufacturing Since 1998, Jiaerda has been providing solutions for almost all imaginable industrial applications, specializing in providing customized solutions for extreme environmental conditions, and will be here for your service forever.
How to test the heat transfer effect of brazed plate heat exchanger?
1. If it is due to fouling, you can measure the inlet and outlet temperature and flow rate of the hot fluid and cold fluid, and calculate the heat transfer efficiency. If the efficiency is too low, it means too much fouling;
2. If it is because of the leakage of the heat exchanger, you can take a sample from the cold fluid and measure the concentration to see;
3. Check whether the temperature difference between the inlet and outlet water meets the design requirements at the time, and check the pressure gauge to see if the pressure drop is within the allowable range.
Heat transfer characteristics of brazed plate heat exchanger:
Brazed plate heat exchangers can be used for heating, industrial cooling, oil compressor and compressor oil cooling, air conditioning, frozen food, chemical refrigeration, water cooling, drinking water treatment, wastewater treatment, heat recovery, etc.
In terms of operation and maintenance, if there are particulate matter in the water, a filter should be used. Reverse washing with water can remove most of the soft particulate matter. The compact brazed plate heat exchanger should be reverse washed with citric acid or other acid that does not corrode copper and stainless steel every 3 to 5 years.
The brazed plate heat exchanger has the advantages of no gaskets, no leakage, light weight, small size, low price, easy disassembly and installation, and high heat transfer efficiency. The structure can be applied to steam, water or process fluids and can be used under conditions such as extremely small temperature differences between the two fluids.
The brazed plate heat exchanger consists of stainless steel plates with efficient heat transfer surfaces. The stainless steel plates are brazed with copper with a purity of 99% at high temperatures to obtain a tight, leak-proof and strong heat exchanger. The compact brazed plate heat exchanger is designed to consist of a maximum of 20 stainless steel corrugated plates, and each second end plate is turned upside down to form a large number of contact points between all the plates. During brazing, the contact points are also welded together to form a compact plate, so that almost all the sheet structure materials (about 94% of the surface) can be used for heat transfer. The plate type forms two separate channels, in which the medium forms convective motion, which causes high turbulence in the channel system and obtains excellent heat transfer characteristics. Even at low speeds, the fouling will be kept at an absolute minimum.
Characteristics of brazed plate heat exchanger:
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Compact structure, easy installation, high heat transfer coefficient, low liquid stagnation, and thin plate (0.4mm).
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Light weight, only equivalent to 20%-30% of the shell-and-tube heat exchanger.
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