How many hours is the service life of a diaphragm pump?

Disadvantages of diaphragm pumps: 1. It needs to work continuously; 2. High maintenance cost; 3. It is difficult to absorb materials, and it is easy to produce cavitation phenomenon - that is, air enters the pump (usually caused by the insufficient power of the pump to transport the coating); 4. Cannot handle high-viscosity paints (as mentioned above); 5. Must be kept clean (small moving parts); 6. It needs to be continuously maintained; 7. Hydraulic oil is easy to leak; 8. The diaphragm often fails. Piston pump disadvantages:

1. The manufacturing cost is high; 2. The purchase cost is high, and the diaphragm pump uses eccentric bearings and pistons to generate movement to drive the diaphragm movement and pressurize the coating. When the motor rotates, the eccentric bearing also rotates, and one end of the piston rests on the eccentric bearing. The rotation of the eccentric bearing causes the piston to move up and down, and when the piston goes down, the diaphragm is depressed, and the inlet valve opens to suction the material.

When the piston goes up, the membrane....

Diaphragm pumps. The most important vulnerable part is the diaphragm, the service life of the general diaphragm is about 20 million times, and the service life is about 6-8 months according to the calculation of 8 hours of daily work.

The service life of qualified whole pump products is more than 5 years, and the overall service life of metal pumps is longer than that of plastics, among which stainless steel has the longest service life and cast steel.

The material will be relatively short due to oxidation and rust.

Under normal circumstances, the service life of the diaphragm pump is about 20,000 hours. If it is used frequently, it is used for 8 hours a day, the service life is more than half a year, and the service life is about 20 million times. At the same time, the material and manufacturing process of the diaphragm pump will also affect its service life.

Plastic diaphragm pumps have a relatively short service life, while cast iron and stainless steel diaphragm pumps have a relatively longer service life.

Electric diaphragm pumps need to pay attention to the following points when using:

Environmental requirements: The electric diaphragm pump should be placed in a ventilated, dry and clean environment to prevent water, dust and gas from entering, which will affect the normal operation of the electric diaphragm pump.

Connecting pipelines: When installing an electric diaphragm pump, attention should be paid to the connection of the pipelines to ensure that each connection is sealed to prevent leakage. In addition, attention should be paid to the diameter of the tubing so as not to affect the flow and pressure of the electric diaphragm pump.

Operating conditions: When using an electric diaphragm pump, you should ensure that the operating conditions of the electric diaphragm pump meet the requirements, such as power supply voltage, frequency, number of phases, etc.

Liquid requirements: The electric diaphragm cleaning pump is suitable for conveying some corrosive and small viscous liquids with low viscosity and medium concentration, and the appropriate pump type should be selected for conveying liquids with high viscosity, high concentration or particulate matter.

Maintenance: When using the electric diaphragm pump, regular maintenance should be carried out, cleaning the pump body, checking the valve, replacing the seals, etc., to ensure the normal operation of the electric diaphragm pump.

Safe operation: When using an electric diaphragm pump, you should follow the operating procedures to avoid getting your hands or clothing stuck in the pump, and at the same time, you should ensure the safety of the electric parsley source to prevent the occurrence of electric shocks and other accidents.

To sum up, the use of electric diaphragm pump needs to pay attention to the above aspects to ensure the normal operation and service life of the electric diaphragm pump.

The life of diaphragm and centrifugal pumps is affected by a variety of factors, including pump design, manufacturing materials, operating conditions, maintenance, etc. In general, it is difficult to directly compare the lifespan of the two, as their application scenarios and working principles are very different.

The advantages of diaphragm pumps include:

It can convey fluids with high viscosity, high solids content and particulate matter.

There are no seals, so the risk of leakage is low.

It has good corrosion resistance and is suitable for chemical, environmental protection and other industries.

The advantages of centrifugal pumps are included:

The structure is simple and easy to maintain.

It is more effective when transporting clean water and light sewage.

It has high efficiency in high-flow and high-head scenarios.

When choosing a pump, it should be judged based on the specific application needs and scenarios. If Bitter God needs to handle fluids that contain particulate matter, high viscosity or corrosiveness, a diaphragm pump may be more suitable for acorn slag. When it comes to treating clean water or light sewage, centrifugal pumps may be a better choice.

In addition, regular maintenance and proper use of the pump are also key factors to extend the life of the pump. Choosing the right pump and ensuring it is operating under the right operating conditions can effectively improve the life of the pump.

Diaphragm pump is a kind of reciprocating positive displacement pump, and its working original leakage is through the reciprocating motion of the diaphragm, which generates alternating negative pressure and positive pressure on both sides of the pump chamber, so that the fluid circulates back and forth in the pump chamber and is pushed forward out of the pump body. Specifically, the working process of the diaphragm pump is as follows:

Suction stage: During the suction phase of the pump, the diaphragm moves outward, creating negative pressure in the pump chamber. At this point, the inlet valve opens, allowing the fluid to be sucked into the pump chamber.

Push-out stage: In the push-out stage of the pump, the diaphragm moves inward to close the bucket to form positive pressure in the pump chamber. At this point, the outlet valve opens, allowing the fluid to be pushed forward from the pump body to complete the pumping process.

Reverse car grinding stage: When the diaphragm reaches the limit position, the working direction of the pump is reversed. At this point, the inlet valve closes and the outlet valve opens, allowing the fluid to flow in the opposite direction from the pump body until the diaphragm reaches another limit position.

Re-suction phase: When the diaphragm reaches another limit position, the direction of operation of the pump is reversed again. At this point, the inlet valve opens again, the outlet valve closes, and the pump begins the next suction phase.

The key component of a diaphragm pump is the diaphragm, which is usually made of materials such as rubber or polymer. The advantage is that the fluid inside the pump chamber can avoid contact with the external environment, thus reducing fluid contamination and leakage. The diaphragm pump has a simple structure, easy to operate and maintain, good corrosion resistance, high stability, and can adapt to a variety of media transportation.

Therefore, diaphragm pumps are widely used in many industrial fields such as food, pharmaceutical, chemical, petroleum, coatings, and water treatment.

Summary. In addition to the above calculation methods, there are other factors that will affect the size of the diaphragm pump, such as the material of the pump, the working pressure, etc. Therefore, in practical applications, we need to consider these factors to determine the most suitable diaphragm pump size.

Hello, the size calculation method of the diaphragm pump of 12 tons per hour is as follows:

First, we need to know that the flow chain unit of the diaphragm pump is m h, not tons. Therefore, we need to convert 12 tons to cubic meters. Since 1 ton is equal to 1,000 kilograms, and 1 cubic meter is equal to 1,000 kilowatts, 12 tons is equal to 12,000 kilograms.

Secondly, we need to know that the flow rate of the diaphragm pump is related to the displacement and speed of the pump. In general, the displacement of a pump refers to the volume of liquid discharged per revolution of the pump. Assuming that we already know the displacement of the diaphragm pump in cubic meters, we can calculate the flow rate of the diaphragm pump according to the displacement and rotational speed.

Finally, we can calculate the size of the diaphragm pump by the following formula: size = flow rate displacement.

It should be noted that the size here refers to the size of the pump, which is usually used to indicate the appearance size of the pump.

In addition to the above calculation methods, there are other factors that will affect the size of the diaphragm pump, such as the material of the pump, the working pressure, etc. Therefore, in practical applications, we need to consider these failures to determine the most suitable diaphragm pump size.

The formula for calculating the power of the membrane pump: p=δp·q where p represents the power of the membrane pump, and the unit is kilowatts; δp represents the head of the membrane pump in megapascals; q represents the flow rate of the membrane pump, and the unit is the cubic meter of the dust in the second high; Indicates the efficiency of the membrane pump, the percentage of hand rolling.