Propylene pump delivery constant pressure regulating method
A constant pressure regulation and propylene pump technology, which is applied in the chemical industry, can solve the problems that the propylene pump cannot maintain constant pressure and affect the operation, and achieve the effect of ensuring the return flow of the pump and the outlet pressure of the pump
Inactive Publication Date: 2016-07-20
ZHANGJIAGANG HUACHANG NEW MATERIAL TECH CO LTD
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- Abstract
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- Application Information
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Problems solved by technology
However, when the pump inlet flow fluctuates or the motor power supply voltage fluctuates, if the outlet manual valve is not adjusted in time, the propylene pump cannot deliver fluid at constant pressure, which will affect the operation of the next unit
Method used
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Embodiment 1
[0008] For a certain propylene pump, before using the outlet pressure adjustment method provided by the present invention, the outlet pressure fluctuation was ±10% due to the inlet flow fluctuation; after using the method of the present invention, the outlet pressure fluctuation decreased to ±5%.
Embodiment 2
[0010] For a certain propylene pump, before using the outlet pressure adjustment method provided by the present invention, the outlet pressure fluctuation was ±8% due to the fluctuation of the motor power supply voltage; after using the method of the present invention, the outlet pressure fluctuation decreased to ±4%.
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The present invention provides a propylene pump delivery constant pressure regulating method. The outlet pressure of a pump can be detected, the outlet pressure of the pump is effectively guaranteed to be constant, and a return pipeline is additionally arranged, so that the pump reflux is guaranteed.
Description
technical field [0001] The invention relates to the chemical industry, in particular to a method for constant pressure regulation of propylene pump delivery. Background technique [0002] In recent years, with the rapid development of the chemical industry, the production and consumption of propylene as one of the basic raw materials has increased rapidly. At present, the traditional propylene pump outlet pressure adjustment method is completed by manipulating the opening of the pump outlet manual valve. The schematic diagram is shown in figure 1 . figure 1 In the process, after starting the propylene pump, adjust the pressure at the pump outlet according to the opening of the pump outlet valve. However, when the pump inlet flow fluctuates or the motor power supply voltage fluctuates, if the outlet manual valve is not adjusted in time, the propylene pump cannot deliver fluid at constant pressure, which will affect the operation of the next unit. Contents of the invention...
Claims
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IPC IPC(8): F04B49/22F04B49/08
CPCF04B49/22F04B49/08
Inventor 李长胜胡波胡善明严芳
Owner ZHANGJIAGANG HUACHANG NEW MATERIAL TECH CO LTD