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1) Diaphragm pump open and stop load operation The diaphragm pump is driven by a variable frequency motor. If the open and shut down load is too large or too small, in order to avoid the occurrence of the above conditions, the rigid open and stop load is controlled at about 30%, and in the instrument. The setting must increase and decrease the load must be completed within a period of time, effective from the process to achieve the maintenance of the inverter.
2) Diaphragm Pump Instrument Air and Lubricant Pressure System Operation The diaphragm air pressure and oil pressure of the diaphragm pump are interlocked with the main motor. The oil filling and drain valve of the propelling fluid is a gas closing valve. Always maintain a certain air pressure. The minimum operating pressure of the two valves is not less than 0.4 MPa, so the instrument air pressure is generally maintained at 015 MPa or more, even if the instrument air is not stopped after the pump is stopped, so as not to promote the liquid in the liquid chamber is insufficient or excessive, the air supplied to the valve is passed through Filtration, oil atomized.
During operation of the diaphragm pump, the lubricating oil pressure should not be lower than the pressure interlock value (0115 MPa), and the pressure difference of the oil outlet filter should not be too large. The steel ball in the oil flow sight glass should be at the upper limit position and regulate the flow rate. When the adjustment rate can not be too large, so as not to momentary traffic over the ambassador pressure dropped too quickly caused the interlock jump.
Through the above process improvement and mastery of the operating points, the diaphragm pump always has a stable process environment. It has been running for more than a year, and only one time has jumped for electrical reasons, and it has achieved long-term, safe and efficient operation.
Diaphragm pumps Applications <br> <br> Because of pneumatic diaphragm pumps with the above characteristics, so in the world since the birth of the diaphragm is gradually invade other pumps in the market, and occupies part of it. Such as: spray paint, ceramic diaphragm pump has occupied an absolute dominant position, and in other industries, such as environmental protection, wastewater treatment, construction, sewage, fine chemicals is expanding its market share, and has other pumps can not be replaced The status. The advantages of pneumatic diaphragm pumps are:
1. Due to the use of air as the power, the flow is automatically adjusted with changes in back pressure (outlet resistance) and is suitable for use in medium and high viscosity fluids. The working point of the centrifugal pump is set based on water. If it is used for a fluid with a slightly higher viscosity, a reducer or frequency converter is required. The cost is greatly increased, and the same is true for the centrifugal pump.
2, in the flammable and explosive environment with a pneumatic pump reliable and low cost, such as fuel, hoo drugs, zha drug delivery, because: First, after the ground can not produce sparks; second, no heat during work, The machine will not overheat; Third, the fluid will not overheat because the diaphragm pump has minimal agitation of the fluid.
3. In the bad places of the construction site, such as the construction site, waste water discharge from the industrial and mining, and the impurities in the sewage are complicated and the components are complex, the pipeline is easy to be clogged. This causes the load on the electric pump to be too high and the motor heat to be vulnerable. Pneumatic diaphragm pump can pass through the particles and the flow can be adjusted. When the pipe is blocked, it stops automatically until it is smooth.
4. In addition, the diaphragm pump is small in size and easy to move, requires no foundation, occupies minimal ground, and is simple and economical to install. Can be used as a mobile material pump.
5. In the treatment of hazardous and corrosive materials, the diaphragm pump can completely separate the material from the outside.
6, or some tests to ensure that no impurities contaminate the raw materials.
7, can be used to transport fluids with relatively unstable chemical properties, such as: photosensitive materials, flocculants and so on. This is because the diaphragm pump has a low shear force and a small physical impact on the material.
DBY electric diaphragm pump is a new type of pump. In recent years, due to the breakthrough in diaphragm material, it has been applied in petrochemicals, ceramics, metallurgy and other industries. The feature is that it does not need to irrigate water and the self-priming capacity reaches 7 More than meters. Particles and mud with a diameter of 10 mm or less can be passed without difficulty. However, there are also many things to note about its operation: