Must-Read for Steam Turbine Maintenance: DQ8302GAFH3.5C Jacking Oil Filter Ensures System Safety

Anyone familiar with steam turbine systems knows that the jacking oil system, while small in size, is a vital component during unit startup, shutdown, and low-speed operation. Within this system, the jacking oil filter is the most crucial element. If the jacking oil filter is not properly selected or managed, impurities in the oil can enter the bearings, potentially damaging the journals or causing downtime, with repair costs easily reaching hundreds of thousands of yuan. Today, we’ll discuss why the DQ8302GAFH3.5C jacking oil filter is the preferred choice for many power plants and how to ensure equipment safety with this filter.

I. A reliable jacking oil filter is essential for the jacking oil system.

The jacking oil system’s function is simple: during unit startup, shutdown, or low-speed operation, the rotor speed is insufficient, preventing a sufficient oil film from forming between the journals and bearings. At this point, the jacking oil system relies on high-pressure oil to prop up the rotor and prevent metal-to-metal friction. But there’s a key point here: the oil must be clean. If it’s contaminated with impurities, not only will the oil film fail to form, but impurities can also scratch the bearings and journals. Therefore, the filtration performance of the jacking oil filter directly determines the functioning of the jacking oil system.

We’ve encountered numerous cases: a coal-fired power plant used a low-quality jacking oil filter. After just one month, the filter deformed under high pressure due to insufficient strength, allowing metal particles in the oil to enter the bearings. The resulting repairs cost over 200,000 yuan and resulted in three days of downtime. This is why choosing the right jacking oil filter isn’t a waste of money; it can actually save the power plant significant money.

Yoyik’s DQ8302GAFH3.5C jacking oil filter is specifically designed for the high-pressure, high-temperature environments of jacking oil systems. From the frame to the filter material to the seal, every detail is focused on reliability to prevent jacking oil filter failure from bringing down the entire system.

II. Structure of the DQ8302GAFH3.5C jacking oil filter: Why can it withstand high pressure and filter cleanly?

The operating pressure of the jacking oil system can reach 21 MPa. Ordinary jacking oil filters are prone to deformation and cracking under this pressure, but the DQ8302GAFH3.5C jacking oil filter remains stable. The key lies in its structural design:

1. Frame and support net: Strong enough to prevent collapse

The inner frame of the DQ8302GAFH3.5C jacking oil filter is made of high-strength material and is carefully machined to be burr-free and contaminant-free. This is crucial. Burrs on the frame would not only scratch the filter media but also cause debris to fall off and contaminate the oil. Furthermore, the thickness and strength of the inner and outer support nets are carefully calculated to prevent dents or cracks even under 21 MPa of high pressure, ensuring the filter element remains intact and the oil flow remains unobstructed. 2. Filter Media: Choosing the right material ensures accurate filtration.

2. The core of the jack oil filter is the filter media.

The DQ8302GAFH3.5C jack oil filter uses high-quality glass fiber. The advantages of this material are obvious: uniform pore size distribution, it can filter out particles as small as a few microns. It also provides excellent oil flow, preventing oil pressure loss due to high filtration precision. Its impurity filtration efficiency is significantly better than that of filters using ordinary synthetic fiber media.

3. Sealing: Leak-proof reliability is key.

In a jack oil system, a faulty seal is useless. If the jack oil filter seal is not good, oil will bypass the filter through the gaps and enter the bearing unfiltered, rendering the filter useless. The DQ8302GAFH3.5C jack oil filter uses oil- and high-temperature-resistant sealing materials. Its optimized sealing structure ensures a tight seal, preventing leakage, whether operating at room temperature or at high system temperatures.

III. Key Advantage: The DQ8302GAFH3.5C jacking oil filter element prevents sudden oil pressure drops.

For jacking oil systems, sudden oil pressure drops are devastating. Once the oil pressure drops, the rotor cannot be lifted, and direct contact and friction between the shaft journal and the bearing can cause serious damage within seconds. Many sudden oil pressure drops are caused by a faulty jacking oil filter element: either a clogged filter element, resulting in an oil blockage, or a ruptured filter element, leading to oil leakage.

The DQ8302GAFH3.5C jacking oil filter element prevents these problems at the source. Firstly, its filter material offers excellent oil flow, preventing the oil flow from clogging even after a period of use due to accumulation of impurities, ensuring stable oil pressure. Secondly, the high-strength design of the frame and support mesh ensures that the filter element will not rupture under high pressure, eliminating oil pressure drops caused by oil leakage.

A power plant previously used a standard jack oil filter, which experienced a sudden drop in oil pressure due to a clogged filter. Fortunately, the problem was discovered in time and prevented significant damage. After switching to the DQ8302GAFH3.5C jack oil filter, the plant has maintained stable oil pressure for two years without any filter-related pressure fluctuations.

IV. Why Choose Yoyik DQ8302GAFH3.5C jack oil filter? A little economics will make the difference.

Some may think Yoyik’s DQ8302GAFH3.5C jack oil filter is more expensive than standard filters, but let’s consider the long-term benefits:

1. Long lifespan, less frequent replacements: Standard jack oil filters typically need replacement every 3-6 months. If you’re unlucky enough to buy a low-quality filter, it could fail in less than a month. The DQ8302GAFH3.5C jacking oil filter element, as long as the oil cleanliness meets the standard, can last 8-12 months. This not only reduces the number of replacements but also saves maintenance downtime. For a power plant, a single day of downtime can cost tens or even hundreds of thousands of yuan, which is far more cost-effective than the price difference of the filter element.

2. Reduced risk of failure: As mentioned earlier, a bearing repair caused by a jacking oil filter failure can cost at least hundreds of thousands of yuan. The DQ8302GAFH3.5C jacking oil filter element minimizes this risk. One power plant found that using this jacking oil filter element reduced the failure rate of the jacking oil system by 70%, with the annual maintenance savings several times the filter element cost.

3. Original equipment compatibility: The DQ8302GAFH3.5C jacking oil filter element is fully compatible with the original jacking oil system, requiring no additional interface modifications. It is easy to install and saves maintenance personnel time and effort in debugging.

V. Daily Maintenance of the DQ8302GAFH3.5C jacking Oil Filter: Simple, but Not Skimpy

Even the best jacking oil filter requires regular maintenance; otherwise, problems can easily arise. Here are some practical tips:

1. Regularly inspect the exterior: During each inspection, focus on checking the DQ8302GAFH3.5C jacking oil filter for deformation or cracks, and for oil stains on the connectors. If there are oil stains, it could be seal deterioration, requiring prompt replacement of the seal or the entire filter.

2. Determine the replacement cycle based on oil cleanliness: Don’t rigidly change oil by schedule. It’s best to regularly test the jacking oil cleanliness (for example, every three months). If the particle count in the oil exceeds the standard, replace the jacking oil filter even before the replacement time. If the oil is clean, the service life can be extended, but not more than 12 months. 3. Don’t be careless when replacing the filter element: When removing the old filter element, carefully inspect the interior for metal debris. If so, it could indicate wear on components within the system and warrants inspection. When installing the new DQ8302GAFH3.5C jacking oil filter, avoid touching the filter media with your hands to prevent contamination. Tighten the screws to the specified torque to prevent a leaky seal.

Finally, let’s be honest: for steam turbine operation and maintenance, the jacking oil filter element isn’t just a “small part,” it’s a “safety gate.” Choosing Yoyik’s DQ8302GAFH3.5C jacking oil filter isn’t based on its reputation, but rather on its proven ability to withstand high pressures, filter cleanly, and minimize failures. After all, stable unit operation is paramount.

If you have any maintenance tips or problems when using the DQ8302GAFH3.5C jacking oil filter, please feel free to share in the comment area. Let’s learn from each other and keep the jacking oil system safe!

When looking for high-quality, reliable jacking oil filters, YOYIK is undoubtedly a choice worth considering. The company specializes in providing a variety of power equipment including steam turbine accessories, and has won wide acclaim for its high-quality products and services. For more information or inquiries, please contact the customer service below:
E-mail: sales@yoyik.com
Tel: +86-838-2226655
Whatsapp: +86-13618105229
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