Repair Compressor After Cooler Crack [CRACKED]
Repair Compressor After Cooler Crack >> https://fancli.com/2t8aq1
If compressor oil works its way into the air lines, the effects could be detrimental elsewhere in the compressor because the pump uses a different kind of lubricant than other parts of the system. Once inside the air lines, that oil will be dispersed to other areas, potentially causing seals to crack or swell. Oily air lines are most troubling when the oil travels to plastic parts of the air valve.
Good day sir, i have a problem with my air compressor tanabe h-264 model. It breakdown because of seizure of piston and cylider liner. We suspect oil starvation that cause the breakdown or malfunction of lubricator. After overhauling the compressor and replacing the lubricator assembly we tested the compressor. During initial run all we observe pressure of 1st stage, 2nd stage, oil and water gage are all normal. Except after a minute of running we observe that there is no oil coming from lubricator going to cylinder for lubrication. And the sight glass has no indication of oil present. We check and clean strainer, replace oil filter and run again. The same problem arise, no oil coming from lubricator even the oil gage in normal pressure. I hope to hear your opinion in these problem to rectify this problem. Your comment will be highly appreciated.
But electrical problems are often easily preventable when an experienced tech inspects your system: he can spot and repair damaged wiring, fuses and contractors before they take down your system and cause AC compressor failure.
As no foreign material hitted, we have been inspected up stream intercooler, there was nothing , it was very neat and clean ..But as we observed the crack profile of the vane ...there is the half thickness of the vane is corroded since long back and half looks like fresh crack...and I observed that where is the fouling is high since long 4 years once we clean the fouling and deposition and go for DP test ..there are the small pitting marks found ...same are found in other similar machines....
I have seen a similar type of failure in our 4 stage integrally geared compressor but the vane damage was near the impeller inlet (at its minimum diameter). This looks like FOD. In our case our inlet air filter element (aluminum material) was damaged and it got into the compressor. It is not necessary that you will find the foreign object in the after cooler. It may have long passed it and somewhere in the downstream.
Please refer to the following oil table. It is extremely important to use oil specifically blended for air compressors. Oil packaged under the ROLAIR name is blended with chemicals that resist foaming, provide excellent wear/corrosion protection, and reduce carbon build up. Accept nothing less than genuine ROLAIR compressor oil. Remember to change the initial factory oil after a break in period of fifty hours. Feel free to contact our service department, email@example.com for the names of our closest oil stocking distributors.
An investigation by the Norwegian offshore oil and gas industry safety regulator into an incident involving the discovery of cracks in the outer shell of second-stage gas coolers on Equinor's Troll C offshore platform in Norway in October 2021, has found that there had been potential for a major gas leak, and that Equinor had breached regulations.
Cracking in a gas compressor cooler on the Norwegian North Sea platform was identified on October 24, 2021. During an inspection of the Troll C platform to check the status of an ongoing job, a black substance was identified under a second-stage gas cooler, the Norwegian Petroleum Safety Authority has found.
Hydrogen cracking may also be called cold cracking or delayed cracking. The principal distinguishing feature of this type of crack is that it occurs in ferritic steels, most often immediately on welding or a short time after welding.
Also, keep in mind that a cracked heat exchanger is one of several problems you may need to call a professional for if you spot it. If you want to learn more about those problems, check out our blog on common furnace repairs.
So let's get down to business. What causes a cracked heat exchanger? Simply explained, a heat exchanger cycles through being heated and cooled. This intended cycle makes the component's metal constantly expand and contract. Over time this wears out the heat exchanger. Eventually, the metal will crack as a result of stress and fatigue. Even if your furnace is in good condition, cracks are inevitable after years of normal wear and tear.
For starters, the age of the equipment is a significant factor. The wear and tear of years on your furnace will naturally lead to cracks over time. If your furnace is aging, then it may be a good idea for you to check the age of its heat exchanger. Heat exchangers last from 15-18 years, so if your heat exchanger is aging, it may be time to replace it. It is impossible to repair a cracked heat exchanger. The only solution is replacing the heat exchanger (which is very expensive) or replacing the entire furnace.
Another issue that results from an oversized furnace is condensation. With an appropriately sized furnace, condensation will form inside your heat exchanger when you first turn it on, and after a few minutes, the condensation evaporates. However, because an oversized furnace will turn on and off too frequently, it does not allow enough time for the condensation to evaporate. Over time, this condensation can rust out your heat exchanger's walls. Rust and corrosion deteriorate the heat exchanger, leading to cracks and holes.
OK, I know what you're thinking. What are my options? And how much will this cost me? Unfortunately, there is no way to patch or seal cracks in a heat exchanger; therefore, repair is not an option. Replacing the part can cost several thousand dollars and is only recommended if your HVAC system is newer with an existing warranty on the heat exchanger. You should be aware that you can expect pretty high labor costs when replacing this item, even if it is covered by the original warranty. This is because, since the heat exchanger is situated in the middle of the furnace, the entire furnace must be disassembled in order to replace the heat exchanger. In light of the high cost, we advise furnace replacement, especially if your current furnace is 10 years old or more.
High pitched squealing noise, banging noise, clicking noise, buzzing noise, hissing noise, rattling noise, and other loud sounds coming from your air conditioner all mean there is something within the system that needs to be replaced or repaired. A fan motor, blower fan, condenser fan, fan belt, expansion valve, relay switch, compressor, refrigerant piping, and other parts can make such noises when they malfunction.
Call a professional to fix the banging noise right away, or further damage may be caused as your air conditioning unit continues to run. If loose parts repeatedly strike against others, banging noise and rattling sounds will worsen and more expensive service may be required to repair the air conditioner. If fan blades on the blower fan or outdoor fan are loose, they can often be reset. Loose parts inside the compressor typically mean the compressor needs to be replaced.
A worn bearing makes a high-pitched squealing or grinding noise, whereas a seized bearing makes a grinding noise or a notable belt squeak. Due to the complexity and nature of how compressors are manufactured, replacing the entire compressor rather than trying a repair is usually the best option.
Centrifugal compressors are used in ethylene plants for cracked-gas compression and refrigeration services. This article describes the basic design and operation of these compressors.
Centrifugal gas compressors are dynamic machines that impart kinetic energy to process gas by accelerating the gas through impellers (Figure 1). The gas enters the impeller with little or no radial velocity. The impeller imparts work to the gas by accelerating the gas from the eye of the impeller out toward the tip. The gas exits with a radial velocity equal to the tip velocity of the impeller. It then decelerates in the diffuser, and that energy is converted into pressure. The gas is redirected to the next impeller in the return channel, or collected in a volute and discharged through the discharge nozzle. From single-stage air blowers to 100-MW multibody cracked-gas compressors, the principle of operation is the same.
Also called process-gas or charged-gas compressors, cracked-gas compressors (CGCs) are high-power compressors that draw gas from the cracking furnaces through the various quench coolers and separation sections of the plant, and pressurize the gas for further separation. They are characterized by large volumes, high mass flowrates, low pressures, and the need for multiple compressor sections to meet the required discharge pressure. They typically have three to five sections across two or three compressor bodies of varying configurations.
The large volume requirement, and the need to reduce the head per stage due to fouling, make a double-flow configuration suitable for the first process stage of a cracked-gas compressor (Figure 6). A double-flow compressor is basically two smaller compressors arranged back to back with a common discharge. This configuration enables a much higher volume flow within a smaller and less-expensive compressor.
CGCs are susceptible to fouling due to polymerization. The cracked gas contains trace amounts of compounds that can polymerize within the gas stream and stick to the flow path in the compressor. This fouling degrades the performance of the compressor, which reduces throughput or increases power consumption.
The temperature can also be reduced by increasing the number of compressor stages and cooling the gas stream with water injection after each compressor stage. However, increasing the number of compressor sections is very costly and has diminishing returns because interstage cooling temperatures are limited. 2b1af7f3a8