There are many advantages to using a submersible vertical turbine pump in manufacturing, construction, and industrial applications. Besides submersible, turbine pumps come in deep well, canned, and wet pit configurations. A vertical pump is highly functional, but they need to be maintained to keep them functioning at an optimal level. Here are a few things to consider when facing repairs and maintenance issues.
Submersible Vertical Turbine Pump Overview
Unlike other models, submersible pumps are designed to work while immersed in water. These pumps are usually positioned underneath the ground to excavate water and bring it to the surface for various uses. Most turbine pumps have a shrouded impeller and receive the water at the device’s center. Diffusion rings direct the discharge along with the series of impellers. The diffusion ring alters the impeller discharge into the pressure head. All of these components work together to process the water and bring it to the surface.
Submersible Vertical Turbine Pump Maintenance
A submersible vertical turbine pump is manufactured to handle a great deal of pressure, but it must be maintained regularly to perform effectively. A proper maintenance inspection should include routine maintenance, routine examinations, three-month inspections, and annual inspections. You can shorten the amount of time between assessments if the pump is not performing optimally, the pump fluid is corrosive, or you are operating in a high-stress environment.
During routine maintenance checks, you should assess the mechanical seal and the packing seal for any tears or imperfections. You should also check the oil in the pump bearings to make sure it is not dried out. There are several tasks you should perform during routine maintenance checks to ensure the device is functioning correctly:
- Assess the oil level through the inspection window on the bearing frame
• Check for unusual sounds
• Check all pump components for leaks
• Examine the vibration
You should perform more extensive maintenance checks every three months. During these checks, examine the pump’s foundation to ensure the hold-down bolts are correctly fitted. Also, check the pump’s casing and packing, particularly if the device has been left idle for a few days. Change the oil filter every three months or more frequently if the device is used daily.
Annual Vertical Turbine Pump Inspections
You need to perform a more extensive inspection of your vertical turbine pump on an annual basis. During these yearly maintenance checks, you need to inspect the pump’s capacity, pressure, and power. You may need to perform these more thorough checks every six months if the device works in conditions that may contaminate any part of the pump.
If you are not satisfied with the pump’s performance during the yearly inspection, you should completely disassemble the device to examine each component’s functionality. You may need to replace damaged parts.
Common Submersible Vertical Turbine Pump Repairs
Several repairs are common for a vertical pump, especially ones that operate in high-stress industries. You will likely need to complete the following maintenance tasks every few years:
- Replace line shaft bearings
• Replace damaged shafting
• Clean submerged components to remove corrosion
• Apply corrosion-resistant coatings to all device surfaces
• Repair damaged impellers
Corrosion is often the primary concern when it comes to vertical turbine pump maintenance. The components submerged in water should be removed as usually as possible to apply a corrosion-resistant coating. If the device is not maintained to prevent corrosion, a total overhaul may be necessary after only a few years. Making frequent repairs can be very expensive, taking money away from your business.
Primary Vertical Pump Repair Concerns
Although a vertical turbine pump performs high-stress tasks, they are not technically sophisticated. Pumps are designed to withstand high-pressure situations, and pump mechanics must be maintained to ensure optimum performance. The primary repair concerns include:
- Dimensional reliability of device components
• Shafting straightness and dependability
• Clearance level for bowl and column bearings
• Impeller balancing
• Corrosion resistance of device coating
To address any of these concerns, most vertical pumps can be disassembled and reassembled relatively easily. It is not necessary to relocate the pump to perform repairs. Because pumps are large and cumbersome, it is best to perform maintenance checks and repairs at the location site.
Work With Zone Industries
If your submersible vertical turbine pump is not performing optimally, you need to get it repaired right away. Business owners that operate in the construction industry understand that work comes to a standstill when tools malfunction. Don’t wait any longer; get your business up and running. Zone Industries has the technical expertise to repair a vertical turbine pump quickly and efficiently. We can repair individual components or complete a total device overhaul. Contact us today to get your pumps functioning at an optimal level.
How Do You Maintain a Submersible Vertical Turbine Pump? | Zone Industries
Water pumps have been around for a long time. H.A Wirtz developed the first one in 1736. A stream wheel powered it to raise water for use at a dye house. Since then, water pumps have continued to evolve and are now incredibly sophisticated pieces of equipment with many applications. Industrial uses are some of the most common for water pumps. For example, industrial pump services are used to remove water at construction sites, displace water after heavy rainfall and irrigate crops. For each situation, there is a type of water pump like a vertical turbine pump that is best suited for the job.
There are two major types of water pumps; centrifugal pumps and positive displacement pumps, each with its subcategories. By understanding the different kinds of water pumps, and when they are used, project managers can make better decisions regarding which one to use.
The first major type of pump is a centrifugal pump. According to Intro to Pumps, a centrifugal pump is “a machine that uses rotation to impart velocity to a liquid and then converts that velocity into a flow.” A centrifugal pump is made up of a pump shaft, a sealing mechanism, and other components to help the pump handle operation stress. Centrifugal pumps must remain filled with fluid at all times to function properly.
Inside the pump is also an impeller, which rotates to provide velocity to the liquid being pumped. This impeller spins rapidly, run by a motor, which forces the liquid in a specified direction. Centrifugal pumps come in several different kinds:
Vertical Turbine Pumps
A vertical turbine pump, also known as a vertical pump or lineshaft pump, is a centrifugal pump that transports water from deep underground. A common type of vertical turbine pump is a submersible pump, which is situated entirely underwater. With a submersible pump, the motor is located at the bottom of the system. Submersible vertical turbine pumps are often used when the liquid is far underground, such as in sewage services.
One advantage of using a submersible vertical turbine pump is the noise level. Due to being far below ground and underwater, this type of pump produces much less noise. In addition, submerged pumps do not need to be primed since they are already underwater.
Other vertical turbine pumps have their motors mounted at the top of the system, with impellers connected through a long shaft. In this configuration, the motor remains dry and is easier to maintain. Our blog post on how vertical pumps work provides a more in-depth look at this system.
One of the more common types of centrifugal pumps is an end-suction pump. This type of pump consists of a single impeller along with a horizontal shaft. These pumps can be altered easily to allow them to pump different types of liquids or solid materials.
The last type of centrifugal pump is called a multistage pump. These pumps have multiple impellers, which provides the pump with additional force. This higher pressure force is required in many instances, such as pipelines.
Positive Displacement Pumps
A positive displacement pump is one where a certain amount of liquid is brought inside the pump’s cavity, and then that same amount is discharged. Depending on the type of pump, this displacement occurs either via a piston, diaphragm, or plunger. To bring the fluid in, a form of suction is used on the inlet side as the cavity expands, then discharged as the cavity decreases. Like centrifugal pumps, there are different types of positive displacement pumps, including:
Rotary pumps run off the rotation of a rotary, which is anything that revolves around a center axis. As the rotary turns, it displaces fluid from the reservoir into the discharging pipe. Two common examples of a rotary pump include a screw pump and a sliding vane.
A reciprocating pump uses a piece that moves forward and backward to transfer the fluid from the reservoir. Common examples of a reciprocating part include a plunger or a piston. As the liquid is being brought into the reservoir via suction, inlet valves open up while the outlet valves remain closed. To discharge the fluid, the inlet valves close, and the outlet valves open.
Linear pumps get their name from the fact that they operate in a straight line. A classic example of a linear pump is called a chain pump. In a chain pump, circular discs are attached to a long chain. As the chain moves up the tube, the discs carry the trapped water, where it is discharged at the top. Modern linear pumps are more sophisticated but operate on the same basic theory.
Understanding the Many Kinds of Water Pumps
When a fluid pump is required, it’s important to know which kind is best suited for the task. Choosing between a vertical turbine pump or a rotary pump will greatly impact the outcome of the task. Luckily, by working with a trusted provider of industrial pump services, such as Zone Industries, the right type of pump isn’t hard to find.
What Are the Different Types of Water Pumps? | Zone Industries