What factors are used to select the pumping volume of Dalian acid resistant pump

To determine the flow rate, head, and flow rate of the Dalian acid resistant pump:

1. If small, normal, and large flow rates are given in the production process, they should be considered as large flow rates.

2. If only normal flow rate is given in the production process, a certain margin should be considered. For high flow and low head pumps with ns>100, a flow margin of 5% should be taken. For low flow and high lift pumps with ns<50, a flow margin of 10% should be taken. For pumps with 50 ≤ ns ≤ 100, a flow margin of 5% should also be taken. For pumps with poor quality and harsh operating conditions, a flow margin of 10% should be taken.

3. If the basic data only provides weight flow rate, it should be converted to volume flow rate.

After determining the planned flow rate and planned head of the water pump station, relevant skill charts can be used to determine the pump model and specifications. The key is to use the pump performance specification table to select the pump type. The pump factory provides this table in the product catalog, and each model in the table has three rows of performance data. Which activity should be used for the prototype? Generally, the planned flow rate and planned head should be consistent with or close to the values listed in the middle row of the performance table, and must fall within the range of the upper and lower rows, because this range is the high-efficiency area where the pump operates. This type of pump is considered to be suitable for practical needs, and the pump is selected.

After determining the flow meter and planned head of the water pump station, relevant skill charts can be used to determine the pump model and specifications. The key points are as follows:

1. Using the Pump Performance Specification Table, Today's Pump Selection

The water pump factory provides this type of table in the product catalog, with three rows of data for each model's performance. Which activity should be used for the prototype? Usually, the planned flow rate and planned head should be consistent with or close to the values listed in the middle row of the performance table, and must fall within the range of the upper and lower rows, because this range is the high-efficiency area for water pump operation. This model of water pump is considered to be suitable for practical needs, and the water pump is selected.

2. Select pump type using the pump selection table

Based on the determined planned head and flow rate, in the selection table, check the horizontal head to find the head value that is tangent or close to the planned head; Find the flow value that is consistent with or close to the planned flow rate in the vertical header, intersect vertically and horizontally in small squares, and mark the model of the water pump. Start by selecting the multi-stage pump type. But occasionally, there may be two pump types that meet the planning requirements. In this case, these two pump types can be compared as a solution, and a skill economy analysis can be conducted to select the appropriate pump type. The key to choosing a water pump is that it is lightweight and fast.

3. Select pump type using comprehensive spectrum of pump performance

The integrated drawing of centrifugal pumps, axial flow pumps, chemical pumps, and mixed flow pumps on the same map constitutes the comprehensive spectrum of agricultural water pump series. The map has a huge specific force, but it is convenient to use the specific force to determine the planned flow rate and planned head. On the spectrum, first use the planned head on the vertical axis to find several water pumps that meet the head requirements but have different flow rates, and then use the planned flow rate on the horizontal axis to determine which water pump to choose. If the planned flow rate is large and a single pump fails to meet the requirements, multiple machines can be considered for operation, but similar models of water pumps should be used in a meticulous manner to facilitate construction and maintenance. Arrange for construction and maintenance.

4. Select pump type using the pump selection table

Based on the determined planned head and flow rate, in the selection table, check the horizontal head to find the head value that is tangent or close to the planned head; Find the flow value that is consistent or close to the planned flow rate in the vertical header, intersect vertically and horizontally with small squares, and mark the model of the water pump. Start by selecting the pump model. But occasionally, there may be two pump types that meet the planning requirements. In this case, these two pump types can be compared as a solution, and a skill economy analysis can be conducted to select the appropriate pump type. The key to choosing a water pump is that it is lightweight and fast.

5. By using a comprehensive spectrum of water pump performance to select pump types, the working areas of centrifugal pumps, axial flow pumps, mixed flow pumps, and slurry pumps are all comprehensively drawn on the same map, which constitutes the comprehensive spectrum of agricultural water pump series. This map has a huge specific force, but it is convenient to use specific force. Based on the determined planned flow rate and planned head, on the spectrogram, first use the planned head on the vertical axis to find several pumps that meet the head requirements but have different flow rates, and then use the planned flow rate on the horizontal axis to determine which pump to choose. If the planned flow rate is large and a single pump fails to meet the requirements, multiple machines can be considered for operation, but similar models of water pumps should be used in a meticulous manner to facilitate construction and maintenance.