The steam heat exchanger can fully displace a large amount of heat in the steam to heat the air. The heated air can be concentratedly transported to various drying and drying equipment. In modern industry, steam has become an ideal heat carrier for a wide range of applications.
First, the structure of the steam heat exchangerThe steam heat exchanger uses steel-aluminum composite finned tubes as the main heat exchanger component. Due to the advanced composite process, the basic non-contact thermal resistance is less than 210 degrees in the tube. The steam heater combines the pressure resistance of the steel pipe with the high thermal conductivity of the aluminum, and has excellent heat transfer performance, while avoiding direct contact between the steel pipe and the air, and the corrosion resistance is also effectively improved. Since the fins have no wrinkles, the air resistance is lower than that of the winding type. At the same time, it has the advantages of easy cleaning, compact structure and large heat transfer area.
The steam heat exchanger is a tube-and-fin heat exchanger for the purpose of enhancing heat transfer by adding fins. Compact structure and high utilization rate.
Second, the working principle of the steam heat exchangerThe working principle of the steam heat exchanger: the steam entering the core is sprayed at a high speed along the side wall obliquely toward the small hole. The kinetic energy is water absorption, pushing the water to flow along the tangential direction of the edge of the core, and contacting the inner wall of the casing at a large angle. , rotated by the block. Due to the reasonable design of the housing volume. The water flow rotation speed is suitable and stable. The rotating water flow not only absorbs the kinetic energy of the steam better, eliminates the noise, but also disperses the steam into a large number of tiny soda unit combinations. The noise generated by this small volume combination is very low. Actually, the noise of the whole heater is about 50db. The rotating hot water flow is directed to the inner wall of the casing by its own centrifugal force. After being squeezed, it is pulled out from the outer holes of the upper and lower plates of the casing, and the hot water is still discharged. With a certain angular velocity, it can push the water in the vicinity of the water tank to rotate, so that the water temperature tends to be consistent. After the hot water is played out from the outer holes of the upper and lower plates of the casing, a negative pressure is formed in the casing, and the cold water outside the heater is sucked into the casing along the upper and lower plates of the casing. This cycle heats the water in the water tank to achieve the desired heating effect.
1. High efficiency and energy saving, the thermal efficiency can reach 99%. The steam heat exchanger can dissolve the steam directly and directly in the water, and even if the pressure difference between the steam and the heated liquid is only 0.04Mpa, the steam can be well added to the heated liquid, so the heat loss is small and the heat efficiency is high.
2, hot water temperature is high: use the vortex heater to obtain higher temperature hot water, the highest heating temperature open container is 98 ° C pressure vessel up to 150 ° C. The maximum working pressure of the steam heat exchanger is 1.6Mpa.
3, low vibration, low noise: is conducive to improve the surrounding environment, compared with the old-fashioned heater, the scroll-type silencer heater uses internal swirling noise reduction structure, the noise is less than 50db, the vibration is greatly reduced.
4. Low total investment: The heat source steam directly enters the water tank, which can save the pump room equipment for hot water and save investment.
5. Simple operation and maintenance: water and steam are separately controlled, so the remaining cold water in the water tank can be repeatedly heated and the temperature control is convenient.
6. The steam heat exchanger is made of all stainless steel material, no need for disassembly and maintenance, and long service life.
5. Installation and use instructions for the steam heat exchanger:1. The steam heat exchanger is connected by standard flanges. It can be installed in parallel with two tables and multiple stages. It is best placed in the geometric center of the container and placed in the middle and lower part of the tank liquid (usually 200 mm from the bottom of the container, side) The wall is larger than 200 mm).
2. The vortex muffler heater is connected to the steam pipe through a flange. The steam pipe should be fastened and positioned without swinging. When multiple units are used in parallel, the installation position should be evenly arranged.
3. If there is any debris in the steam pipe (the new pipe is equipped with electric welding slag and has not been rusted in the pipe for a long time), please install a filter to prevent the nozzle from clogging the nozzle.
4. The vortex muffler heater is installed in the water tank or the water tank. The water temperature and water level of the water tank are recommended to use the YWQ type temperature and liquid level controller produced by the company to match the water temperature and water level.
5. When selecting the type, the diameter of the pipeline should be greater than or equal to the nominal diameter of the steam heat exchanger. When multiple heaters are used in parallel, the cross-sectional area of ​​the steam pipeline should be greater than or equal to the cross-sectional area of ​​all steam heat exchanger connecting pipes. with.
6. On the steam line near the heater, a check valve must be installed to prevent the phenomenon of siphoning when the steam is stopped, resulting in an accident of water backflow.
Nordy Dry specializes in the production of steam heat exchangers and steam radiators. Our factory has strong technical force, complete production equipment, advanced production technology, perfect testing means and high quality. Specializing in the production of steam heaters, tube condensers, mixers, dryers and other products. Over the years, our factory adheres to the business philosophy of "customer satisfaction is what we are pursuing, users think we should do it"; "quality first, reasonable price, prompt delivery, good service and thoughtful". Committed to the research and development, production and application of chemical machinery in the chemical, food, biological and pharmaceutical fields, and achieved good market effects. Gained a consistent reputation from users.
6. What are the direct heat exchange systems for steam heat exchangers?The direct heat exchange system of steam heat exchanger mainly has the following aspects. The first is steam heated ejector. This system requires a certain pressure, the equipment is simple, the cost is relatively low, the heat energy utilization rate is relatively high, and it is not easy to scale. . The steam mixer is currently not used because it will cause some damage to heating, air conditioning and the like. The spray heat exchanger is ideal under low-pressure steam conditions, but the debris in the water is easy to block the spray holes, so you need to pay attention to these. The thermal sensing heat exchanger unit is relatively stable in operation, and can realize automation and intelligent features, simple and convenient operation, and low installation cost.
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