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A coking high-pressure ammonia water pressure control system and control method

A technology of pressure control and high-pressure ammonia water, applied in electrical program control, comprehensive factory control, coke oven, etc., can solve the problems of untimely switching of systems, single control mode, and inability to ensure long-term stability of high-pressure ammonia water pressure, etc., to ensure The effects of stable and continuous supply, improved control output, and long maintenance time

Active Publication Date: 2021-05-25
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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AI Technical Summary

Problems solved by technology

The pressure control of high-pressure ammonia water is in a semi-automatic state, the system switching is not timely, and the control mode is single, which cannot ensure the long-term stability of the pressure of high-pressure ammonia water, thus affecting the operation rate of the anthracite coal charging process

Method used

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  • A coking high-pressure ammonia water pressure control system and control method
  • A coking high-pressure ammonia water pressure control system and control method

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Embodiment Construction

[0065] The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0066] Such as figure 1 As shown, a coking high-pressure ammonia water pressure control system includes three high-pressure frequency conversion pumps: frequency conversion pump 1, frequency conversion pump 2 and frequency conversion pump 3; including five cut-off valves: cut-off valve 1, cut-off valve 2, cut-off valve 3, and cut-off valve Valve 4, cut-off valve 5; pressure transmitter 1 and pressure transmitter 2 are also included;

[0067] The inlets of frequency conversion pump 1, frequency conversion pump 2 and frequency conversion pump 3 are all set on the outlet pipeline of the tar ammonia water separation tank, and the outlet of frequency conversion pump 1 is provided with shut-off valve 1, and is connected to the ammonia spray pipe of the first group of coke ovens through shut-off valve 1 The outlet of frequency conversio...

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Abstract

A coking high-pressure ammonia water pressure control system and control method, the system includes three high-pressure frequency conversion pumps: frequency conversion pump 1, frequency conversion pump 2 and frequency conversion pump 3; five cut-off valves: cut-off valve 1, cut-off valve 2, and cut-off valve 3. Cut-off valve 4, cut-off valve 5; pressure transmitter 1 and pressure transmitter 2 are also included; the control method includes: the first group of coke ovens and the second group of coke ovens respectively control mode, the first group of coke ovens Joint control mode with the second group of coke ovens. A fully automatic solution for the simultaneous high-pressure ammonia water pressure control of two coke oven groups (four coke ovens) in the coking field. The ammonia water is pressurized by three parallel high-pressure frequency conversion pumps of the same power to realize The continuous control of the pressure of high-pressure ammonia water, the high-pressure frequency conversion pump is connected to the five-valve group, which is used to control the whereabouts of high-pressure ammonia water, and realizes various control methods for the pressure of high-pressure ammonia water, so as to achieve full control of the pressure of high-pressure ammonia water in the first furnace group and the second furnace group. automatic control.

Description

technical field [0001] The invention relates to the technical field of high-pressure ammonia water pressure automatic control system in the coking field, in particular to a coking high-pressure ammonia water pressure control system and a control method. Background technique [0002] Under the double pressure of environmental protection and market, coke oven high-pressure ammonia an One of the important topics of furnace production. High-pressure ammonia water is used as the power source of smokeless coal charging technology. Since the coal charging operation is an intermittent operation, the automatic control technology of high-pressure ammonia water pressure becomes very important. [0003] Transmission's high-pressure ammonia water pressure control technology exists: [0004] 1. One is to use a high-pressure ammonia water pump with constant power, and control the pressure of high-pressure ammonia water through a regulating valve. The pressure fluctuates greatly, and it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418C10B41/00
CPCC10B41/00
Inventor 刘晓东刘思萌杨凯袁浚开赵阳崔远哲李曼
Owner ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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