A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements, and is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to its operating process can be divided into three major categories: inter-wall, mixed, heat storage (or heat return); according to the degree of compactness of its surface can be divided into two categories: compact and non-compact.
Domestic class
Domestic heat exchanger solves the problem of collective heating families and hot water in winter. It works on the same principle as the heat exchanger for collective heating. Only the size and style are different.
Can be divided into cast iron type, cylinder type, steel type, water storage type, plate type.
Folding cast iron type
The cast iron type is large and heavy. But the inside of the copper pipe can be opened before buying check, not easy to be cheated by merchants, and after a few years of bad copper can be replaced.
Folding cylinder type
The cylinder type is small in size and has high exchange efficiency. However, users can't check the length of the copper tube inside, and can't replace the copper tube, and it's not very beautiful.
Folding steel type
The size of the steel type varies from large to small. Users can not see the length of the copper pipe inside, and can not replace the copper pipe. But it is more beautiful.
Folding plate type
Plate type is very small in size and weight. Heat exchange efficiency is very high. There is no copper pipe inside. Heat exchange capacity is related to the number of layers. The number of layers can be seen and felt.
Folding scale
All of the above kinds of exchangers will produce scale during use. After a few years of use, the water flow will be small, the water is not too hot and so on.
Stainless steel heat exchanger
Stainless steel heat exchanger is the application of material for stainless steel material heat exchanger, with very good antioxidant properties, safety and hygiene, widely used in food, medicine, heating, domestic water, air-conditioning back to the water and other fields. Stainless steel heat exchanger than the traditional carbon steel heat exchanger heat transfer effect has more good heat transfer effect, and the life of the use of longer. Stainless steel heat exchanger in many areas of the current more widely used, the heat exchanger is made of food-grade stainless steel, has a very prominent anti-rust, anti-scaling properties.
Folding vortex heat film heat exchanger
Vortex heat film heat exchanger adopts the latest vortex heat film heat transfer technology of stainless steel heat exchanger, by changing the state of fluid movement to increase the heat transfer effect, when the medium passes through the surface of the vortex tube, the surface of the tube is strongly scouring, so as to improve the heat transfer efficiency. Up to 10,000W/m2℃.
This structure achieves corrosion resistance, high temperature resistance, high pressure resistance, and anti-scaling function. Other types of heat exchangers have fluid channels in the form of fixed directional flow, forming a winding flow on the surface of the heat exchanger tube, and reducing the convection heat transfer coefficient.
The most important feature of the vortex heat film heat exchanger is the unity of economy and safety. As a result of the consideration of the flow relationship between the heat exchanger tube, heat exchanger tube and shell, no longer use the folding plate to force the blocking of the way to force out the turbulence, but by the heat exchanger tube naturally induces the formation of alternating vortex flow between the heat exchanger tube and the heat exchanger tube does not friction with each other under the premise of maintaining due to the strength of the flutter. Rigidity and flexibility of the heat exchanger tube configuration is good, will not collide with each other, not only to overcome the floating coil heat exchanger collision between each other to cause damage to the problem, but also to avoid the ordinary shell and tube heat exchanger easy to scale the problem.
Performance characteristics
1. High efficiency and energy saving, the heat transfer coefficient of the heat exchanger is 6000-8000W/m2.0C.
2. All stainless steel production, long service life, up to 20 years or more.
3. Change laminar flow into turbulent flow, improve the heat transfer efficiency, reduce the thermal resistance.
4. Fast heat exchange speed, high temperature resistance (400℃), high pressure resistance (2.5Mpa).
5. Compact structure, small footprint, light weight, easy to install, saving civil investment.
6. Flexible design, complete specifications, practical and targeted, saving money.
7. Wide range of application conditions, applicable to a larger pressure, temperature range and a variety of media heat exchange.
8. Low maintenance costs, easy to operate, long scale cycle, easy to clean.
9. Adopting nano thermal film technology, significantly increasing the heat transfer coefficient.
10. Wide range of applications, can be widely used in thermoelectricity, factories and mines, petrochemical industry, urban central heating, food and medicine, energy and electronics, machinery and light industry, and other fields.
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