Cascade control system and control method for slurry pipeline transportation

A technology of pipeline transportation and cascade control, which is applied in the general control system, control/regulation system, program control in sequence/logic controller, etc., can solve the problem of reducing system operation efficiency and stability, difficulty in coordination of pumping stations, The controlled equipment is far away and other problems, so as to improve the automatic control process, reduce the intensity of manual labor, and reduce the coordination effect

Active Publication Date: 2021-01-26
SHAANXI SHENWEI COAL PIPELINE TRANSPORTATION OF GOD
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AI Technical Summary

Problems solved by technology

[0003] Traditional long-distance slurry pipeline transportation adopts multi-stage pumping station stage pressurization technology for slurry transportation, which has the characteristics of long distance from the controlled equipment, complex equipment system, high difficulty in control, and difficult coordination between pumping stations. Due to artificial factors The high degree of participation in the system causes more uncontrollable factors in the operation of the system, thereby reducing the efficiency and stability of the system operation

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  • Cascade control system and control method for slurry pipeline transportation
  • Cascade control system and control method for slurry pipeline transportation
  • Cascade control system and control method for slurry pipeline transportation

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] Such as figure 1 As shown, a slurry pipeline transportation cascade control system of the present invention includes a first-stage pumping station system, a second-stage pumping station system, a third-stage pumping station system, a fourth-stage pumping station system and a fifth-stage pumping station system connected in sequence.

[0044] The first-level pumping station system includes flow transmitter F1 1, mill 2, head-end slurry storage tank 3, slurry feeding pump 4, flow transmitter F25 and first-level pumping station 6 connected in sequence through pipelines;

[0045] Both the flow transmitter F1 1 and the flow transmitter F2 5 are connected to the input end of the first PLC controller 7; the output end of the first PLC controller 7 is connected to the frequency converter of the primary pump station 3 main pump.

[0046] The se...

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Abstract

The invention discloses a slurry pipeline conveying cascade control system and a control method thereof. The control system comprises a first-stage pump station system, a second-stage pump station system, a third-stage pump station system, a fourth-stage pump station system and a fifth-stage pump station system which are connected in sequence; the first-stage pump station system comprises a flow transmitter F1, a mill 2, a head end pulp storage tank, a pulp feeding pump flow transmitter F2 and a first-stage pump station which are sequentially connected through a pipeline; the flow transmitterF1 and the flow transmitter F2 are connected with the input end of the first PLC; and the output end of the first PLC is connected with a frequency converter of a first-stage pump station main pump.The control system has the characteristics of multi-system coordination and reduction of artificial participation; the control method improves the operation stability and efficiency of the system.

Description

technical field [0001] The invention belongs to the technical field of pipeline transportation control systems, in particular to a slurry pipeline transportation cascade control system, and also relates to a control method for the slurry pipeline transportation cascade control system. Background technique [0002] Slurry pipeline transportation can be used as an important resource transportation method besides railway, highway and waterway transportation, and has a wide range of applications. In order to meet the delivery requirements, the flow rate and pressure are the key process parameters that need to be controlled during the delivery process. Traditional slurry pipeline transportation requires manual calculation of upstream process material flow to determine the delivery flow. It is also necessary to manually adjust the pump speed to balance the inlet pressure of the pump station. [0003] Traditional long-distance slurry pipeline transportation adopts multi-stage pum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/1187
Inventor 闫建党李冰一吴文颢王晓乐王静
Owner SHAANXI SHENWEI COAL PIPELINE TRANSPORTATION OF GOD
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