Imported high-pressure pump spray pump plunger pump cleaning pump

cleaning machineImported high-pressure pump spray pump plunger pump cleaning pumpPrinciples and steps for selection

Imported high-pressure pump spray pump plunger pump cleaning pumpWidely used in various sectors such as petroleum, chemical, power metallurgy, mining, ship selection, light industry, agriculture, civil and national defense, it occupies an important position in the national economy. according to79According to annual statistics, China's pump production has reached125.6Ten thousand units. The electricity consumption of pumps accounts for a certain percentage of the national electricity consumption21%The above. Therefore, vigorously reducing the energy consumption of pumps is of great significance for energy conservation.

At present, in various fields of the national economy, due to unreasonable selection, many pumps are in an unreasonable operating condition, with low operating efficiency and a large amount of energy wasted. Some pumps cannot be used due to unreasonable selection, or the use and maintenance costs increase, resulting in low economic benefits. From this, it can be seen that a reasonable choice should be madeImported high-pressure pumpIt is also of great significance to save energy.

The so-called reasonable choiceImported brand high-pressure spray pumpIt is necessary to comprehensively consider the technical and economic indicators such as investment and operating costs of pump units and pumping stations, so as to comply with the principles of economy, safety, and applicability. Specifically, there are several aspects:

1.It is necessary to meet the requirements of flow rate and head, that is, the operating point of the pump (the intersection point of the device characteristic curve and the pump performance curve) must be kept in the high-efficiency range, so as to save power and prevent damage to the components.

2.the chosenImported high-pressure water pumpIt should have small size, light weight, and low cost, as well as good characteristics and high efficiency.

3.It has good anti cavitation performance, which can reduce the excavation depth of the pump room and prevent cavitation of the water pump, ensuring smooth operation and long service life.

4.Constructing pump stations according to the selected water pumps results in low project investment and operating costs.

Section 2 How to Translate Imported high-pressure plunger pumpSelection steps

1、 List basic data:

1.Characteristics of the medium: medium name, specific gravity, viscosity, corrosiveness, toxicity, etc.

2.What is the particle diameter and content of solids contained in the medium.

3.Medium temperature:(℃)

4.Required traffic: General industrialImported high-pressure spray pumpLeakage in the pipeline system can be ignored in the process flow, but the impact of process changes on flow rate must be considered. If agricultural pumps use open channels for water transportation, leakage and evaporation must also be considered.

5.Pressure: suction tank pressure, drainage tank pressure, pressure drop in pipeline system(Head loss).

6.Pipeline system data(Diameter, length, type and number of pipeline accessories, geometric elevation from suction tank to pressure tank, etc).

If necessary, a device characteristic curve should also be made. When designing and arranging pipelines, the following points should be noted:

AReasonably choose the diameter of the pipeline. A larger pipeline diameter can result in lower liquid flow velocity and lower resistance loss at the same flow rate. However, due to its high price, a smaller pipeline diameter can lead to a sharp increase in resistance loss, resulting in an increase in the head and power of the selected pump, as well as higher costs and operating expenses. Therefore, a comprehensive consideration should be given from both technical and economic perspectives.

BThe discharge pipe and its pipe joints should consider the pressure they can withstand.

CThe pipeline layout should be arranged as straight pipes as possible, minimizing the number of accessories in the pipeline and minimizing the length of the pipeline. When it is necessary to turn, the bending radius of the elbow should be the diameter of the pipeline3～5Double, the angle should be as large as possible90℃。

D、Imported brand high-pressure pumpValves (ball valves or globe valves, etc.) and check valves must be installed on the discharge side. Valves are used to adjust the operating point of the pump, and check valves can prevent the pump from reversing and prevent the pump from being hit by water hammer when the liquid flows back. When the liquid flows back, a huge reverse pressure will be generated, causing damage to the pump

2、 Determine the flow head

Imported high-pressure plunger pumpDetermination of traffic

aIf the minimum, normal, and flow rates have been given in the production process, they should be considered based on the flow rate.

bIf only normal flow rate is given in the production process, a certain margin should be considered. Forns>100A high flow low head pump with a flow margin of5%Yes, that's rightns<50A small flow high head pump with a flow margin of10%，50≤ns≤100The pump and flow margin are also taken5%For pumps with poor quality and harsh operating conditions, the flow margin should be taken10%

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