Pump device should be stopped following the review:
1).Foundation of size, position, elevation should be consistent with the requirements of a plan, anchor bolts required proper and precise firmly in concrete Picchi, not dull the vacancy parts, damaged or corroded, etc.;
2).According to the characteristics of pump sending medium, when necessary, should check on important parts, shaft seals and gasket materials;
3).Leveling pump, find business should be in conformity with the rules of the furnishings and equipment set up technical documents, if there are no rules should be comply with the requirements of current national standard "machine set equipment decoration engineering device for construction and acceptance of common standards for the;
4). All links the pump pipeline, pipe device and smooth pipeline cleaning request should be in conformity with the relevant rules of national standard.
The test run of the pump shall meet the following requirements:
1).The shift of the idea should be similar to the steering pump;
2).To identify coaxial pipeline pumps and steering pump;
3).The solid connection parts shall not be loose, the smooth parts of the specifications and the number of smoothing agent should be fit to set the rules of equipment and equipment display skills;
4).The pre request smooth parts should be pre smooth stop rules;
5).The various indicators, safety maintenance installation shall be flexible, accurate and reliable;
6).The turning gear should be sensitive, no signs of very;
7). Cryogenic pump before commissioning should stop the pump body for preheating temperature rise of the mean, hourly temperature rise should not be greater than 500 DEG C; the outer surface of the pump body and working medium inlet piping temperature difference should be not larger than 4090;
8).The influence of the temperature rise of the level set interface installation, set the bypass connection installation supply cooling water.
3.Centrifugal pump control should pay attention to the following points:
1).The absolute stop running, not to low suction conditioning population displacement, stop running at low flow rate;
2).The monitoring operation process, completely stop stuffing box leakage, replacement of packing boxes should be used when new packing;
3).To ensure that the machine is sealed with sufficient water to flush the water, the water cooled bearing to prevent the use of excess water;
4).The smooth agent do not use too much;
5).According to the recommended periodic check. Set up the running records, including the running hours, the filling of the mediation and change, add the smooth agent and other maintenance steps and time. Centrifugal pump suction and discharge pressure, flow, output power, liquid and bearing temperature and vibration conditions should be recorded in demand.
6).The host of the centrifugal pump is based on atmospheric pressure will nor pump water to a high, and high pressure up to only support about 10.3M of the water column, the centrifugal pump of the host separate water 12 meters not things.6).
