An automatic ammonia distribution device and automatic ammonia distribution method

An automatic technology for ammonia distribution, applied in the direction of mixing methods, chemical instruments and methods, mixer accessories, etc., can solve problems such as occupational safety impacts, and achieve the effect of saving ammonia costs

Active Publication Date: 2017-02-01
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of configuring ammonia water, people will be exposed to ammonia water, so it will have a certain impact on occupational safety

Method used

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  • An automatic ammonia distribution device and automatic ammonia distribution method
  • An automatic ammonia distribution device and automatic ammonia distribution method
  • An automatic ammonia distribution device and automatic ammonia distribution method

Examples

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like figure 1 As shown, an automatic ammonia distribution device of the present invention includes a connected automatic ammonia distribution control cabinet 1, a dispensing box, an ammonia escape prevention device 2, and an ammonia gas detection and alarm system 3.

[0023] like figure 2 As shown, the automatic ammonia distribution control cabinet 1 includes a PLC 1-1, a human-machine screen 1-2 connected to the PLC 1-1, a conductivity meter 1-3, an electric valve 1-4 for feeding ammonia, and a Electric valve 1-5 for brine, gas flowmeter 1-6 and manual valve 1-7 for feeding ammonia.

[0024] The automatic ammonia distribution control cabinet is composed of an ammonia dosing control system and a liquid level control system.

[0025] The ammonia dosing control system is composed of PLC 1-1, man-machine interface 1-2, conduct...

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PUM

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Abstract

An automatic ammonia distribution device and an automatic ammonia distribution method, the device includes a connected automatic ammonia distribution control cabinet, a dispensing box, an ammonia escape prevention device, and an ammonia detection and alarm system; The rate meter detects the conductivity of ammonia water in the dispensing box, and converts it into the concentration of ammonia water through the PLC in the automatic ammonia distribution control cabinet. When the concentration is lower than the set value, the PLC sends an instruction to open the electric valve for ammonia gas. When the concentration of ammonia water reaches the set value, PLC sends an instruction to close the electric valve for ammonia gas inlet; when the liquid level of the medicine tank is lower than the lower limit of the set value, PLC sends an instruction to open the electric valve for desalted water inlet, when the liquid level reaches When the set value is at the upper limit, the PLC sends an instruction to close the desalted water inlet electric valve; the invention does not require manual operation during the configuration of ammonia water, and the concentration of ammonia and the height of the liquid level of the ammonia distribution tank can be set by PLC .

Description

technical field [0001] The invention relates to the technical field of adding ammonia to unit feedwater in thermal power plants and nuclear power plants, and in particular to an automatic ammonia distribution device and an automatic ammonia distribution method. Background technique [0002] The water supply systems of thermal power plants and nuclear power plants generally adopt ammonia addition for anticorrosion, but at present, most of them use ammonia water to prepare a certain concentration of ammonia water and then add it to the water supply system of the unit. In the process of preparing ammonia water, people will be exposed to ammonia water, which will have a certain impact on occupational safety. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide an automatic ammonia distribution device and an automatic ammonia distribution method, no manual operation is required in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/04B01F15/04
Inventor 孙本达张瑞刘涛
Owner XIAN THERMAL POWER RES INST CO LTD
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