Stainless steel pumps are now particularly widely used. According to the different properties of the conveying medium, they can be divided into acid pumps, alkali pumps, clean water pumps, mud pumps, etc.>
Since stainless steel pumps
have different temperatures and pressures of the conveying medium, what should be done? Effectively extend the service life of stainless steel pumps and reduce the amount of maintenance, which has a great effect on improving the economic benefits of the factory>
Let's share how to extend the service life of stainless steel pumps>
1. For stainless steel pumps Selection and installation>
The stainless steel pump should be selected according to the liquid being transported and the required performance should be checked, the suction and discharge conditions should be analyzed, whether it is intermittent or continuous operation, etc.>
Usually it should be Or operate under pressure and flow conditions close to the manufacturer's design requirements>
The following review should be carried out when installing the pump>
The size, location and elevation of the stainless steel pump foundation should meet the design requirements, and the anchor bolts must be appropriate. And correctly fixed in the concrete foundation, the machine should not have missing parts, damage or rust
According to the characteristics of the medium transported by the pump, the materials of the main parts, shaft seals and gaskets should be checked if necessary
br/>. The leveling and alignment of the pump should comply with the provisions of the equipment technical documents. If there is no provision, it should comply with the provisions of the current national standard "General Specifications for Construction and Acceptance of Mechanical Equipment Installation Projects"
. All connections with the pump body The installation of pipelines and pipe fittings and the cleaning requirements of lubricating oil pipelines should comply with relevant national standards>
2. Use of stainless steel pumps>
The trial operation of stainless steel pumps should comply with the following requirements>
, The steering direction of the driver should be the same as the steering direction of the pump
. Check the steering direction of the pipeline pump and the coaxial pump
. There should be no looseness in each fixed connection part. The specifications and quantity of lubricant added to each lubricating part It should comply with the provisions of equipment technical documents
. Parts with pre-lubrication requirements should be pre-lubricated according to regulations
. The safety protection devices of each indicating instrument should be sensitive, accurate and reliable
. Turning should be Flexible and without abnormal phenomena
. The pump body of the high-temperature pump should be preheated before trial operation>
A connection device should be installed to eliminate the influence of temperature rise to provide a cooling water source>
3. Stainless steel pumps should be operated Pay attention to the following points>
. It is forbidden to run without water, do not adjust the suction inlet to reduce the displacement, and it is forbidden to operate at too low flow rate
. Monitor the operation process to completely prevent the stuffing box from leaking and replace the stuffing box. Use new packing
, ensure that the mechanical seal has sufficient flushing water flow, it is forbidden to use excessive water flow for water-cooled bearings
, do not use too much lubricant
, and inspect according to the recommended period>
Establish operating records including operating hours, adjustment and replacement of packing, adding lubricant and other maintenance measures and time>
Evaluate the centrifugal pump suction and discharge pressure, flow rate, input power and bearing temperature and vibration conditions All should be measured and recorded regularly>
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