CN202390269U - Inner cooling water automatic alkalifying treatment device for power plant - Google Patents

Inner cooling water automatic alkalifying treatment device for power plant Download PDF

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Publication number
CN202390269U
CN202390269U CN2011205235005U CN201120523500U CN202390269U CN 202390269 U CN202390269 U CN 202390269U CN 2011205235005 U CN2011205235005 U CN 2011205235005U CN 201120523500 U CN201120523500 U CN 201120523500U CN 202390269 U CN202390269 U CN 202390269U
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CN
China
Prior art keywords
cooling water
inner cooling
generator
cold water
pipeline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011205235005U
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Chinese (zh)
Inventor
宋建华
陈浩
王一波
孔胜杰
陈里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELECTRIC POWER INSTITUTE OF SCIENCE NINGXIA ELECTRIC POWER Co Ltd
Original Assignee
ELECTRIC POWER INSTITUTE OF SCIENCE NINGXIA ELECTRIC POWER Co Ltd
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Application filed by ELECTRIC POWER INSTITUTE OF SCIENCE NINGXIA ELECTRIC POWER Co Ltd filed Critical ELECTRIC POWER INSTITUTE OF SCIENCE NINGXIA ELECTRIC POWER Co Ltd
Priority to CN2011205235005U priority Critical patent/CN202390269U/en
Application granted granted Critical
Publication of CN202390269U publication Critical patent/CN202390269U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model relates to an inner cooling water treatment device for a power plant, in particular to an inner cooling water automatic alkalifying treatment device in the power plant. The inner cooling water automatic alkalifying treatment device comprises an inner cooling water tank of a generator, and a water pump connected with the inner cooling water tank of the generator. A cooler and a filter are sequentially connected on a water outlet pipe of the water pump; and inner cooling water filtered by the filter is conveyed to the generator through a pipeline. The inner cooling water treatment device is characterized in that a tee joint is mounted on an inner cooling water conveying pipeline between the filter and the generator; a pH value and conductivity measuring device is mounted on one pipeline of the tee joint; the other pipeline of the tee joint is connected with an inlet of an ion exchanging device; an outlet of the ion exchanging device is respectively connected with the inner cooling water tank of the generator and an outlet of a medicating water pump at an outlet of a medicating tank of a sodium hydroxide solution; and the medicating water pump, the pH value and conductivity measuring device and a controller are connected. The inner cooling water treatment device has the advantages of high automation level and accurate control, and can meet treatment requirements of inner cooling water of the power plant.

Description

The power station inner cold water adds the alkaline purification device automatically
Technical field
The utility model relates to the treatment unit of power station inner cold water, and particularly the power station inner cold water adds the alkaline purification device automatically.
Background technology
The burn into fouling of generator hollow conductor, obstruction are noticeable problems.In recent years; External heavy-duty generator hollow conductor blockage problem happens occasionally, and the degree of obstruction might not develop into the stage of damaging generator, but tends to cause line rod temperature to raise; Compelled load down operation; Sometimes in order to wash settling, need to shut down maintenance, influenced the available rate of unit.At present, closed circulation cooling is adopted in the electric generator inner cooling water running, and some power plant's inner cold waters adopt when handling moisturizing and mend de-mineralized water, and de-mineralized water pH is low, causes system's corrosion, and the copper content of inner cold water system is increased; Other power plant adopts mends condensed water, and when condenser leaked, condensed water very easily polluted, and had a strong impact on inner cold water water quality, thereby possibly influence the equipment operation; Some power plant adopts little alkaline purification, little mixed bed to handle, though effect is fine, has increased cost, needed to change resin at a distance from 1 to 2 year, and resin price is higher.In water, the electropotential of copper is lower than the electropotential of oxygen.See that from the viewpoint of chemical thermodynamics copper is can oxidized corrosive.Can corrosion reaction constantly go on, and depends on the character of corrosion product.If it is very fast in the sedimentation velocity on copper surface, and very fine and close, just played provide protection, promptly formed the so-called protection film; Otherwise corrosion deposits can not form protective membrane, and corrosion will constantly go on.The problem that how to solve the power station inner cold water becomes one of difficult point of safe power generation.
Summary of the invention
The purpose of the utility model is the defective that overcomes prior art, provides a kind of power station inner cold water that can adjust inner cold water pH value automatically to add the alkaline purification device automatically.
For realizing the purpose of the utility model; The technical scheme that is adopted is: a kind of power station inner cold water adds the alkaline purification device automatically; Comprise electric generator inner cooling water tank, the water pump that links to each other with the electric generator inner cooling water tank; Water cooler, strainer have been linked in sequence on the outlet pipeline of water pump; Inner cold water after strainer filters, is characterized in that pH value and conductivity measuring apparatus and bye-pass have been installed on the inner cold water transport pipe between strainer and the generator to generator through pipe-line transportation, and bye-pass links to each other with the ion-exchanger import; The ion-exchanger outlet links to each other with the dosing exit of pump of electric generator inner cooling water tank with the outlet of sodium hydroxide solution dosing tank respectively with pipeline through threeway, and above-mentioned dosing water pump, pH and conductivity measuring apparatus link to each other with gear.
Above-mentioned pH value measurement mechanism is online pH meter, and above-mentioned conductivity measuring apparatus is online conductivitimeter.
Above-mentioned dosing water pump is the micro-measurement pump.
On the pipeline that above-mentioned ion-exchanger exports with the electric generator inner cooling water tank links to each other, pH value and conductivity measuring apparatus are installed also, this device links to each other with gear.
The utility model is in the hydronic electric generator inner cooling water operational system of existing closed, to have added pH and conductivity measuring apparatus; PH value and specific conductivity through the on-line monitoring electric generator inner cooling water; Operation result according to gear sends instruction to the micro-measurement pump; Confirm in the electric generator inner cooling water operational system, to add the amount of sodium hydroxide solution, make inner cold water reach the inner cold water water quality requirement of defined in " DL/T 1039-2007 electric generator inner cooling water treatment guide rule " " DL/T 246-2006 chemical supervision guide rule " " DL/T 801-2002 high-rating generator internal cooling water quality and systems technology require ".This device has automatization level height, control accurately, can satisfy the processing requirements of existing power station inner cold water.
Description of drawings
Accompanying drawing 1 is the process flow sheet of the utility model.
Embodiment
As shown in Figure 1, after the water that is come by generator gets into the generator internal cooling water case, squeeze in the water cooler through water pump and to cool off, cooled water through strainer with contaminant filter after, flow to generator through the inner cold water transport pipe.Online pH meter and online conductivitimeter are installed on the inner cold water transport pipe between strainer and the generator; Through online pH meter and online conductivitimeter the pH value and the specific conductivity of the inner cold water in the pipeline are carried out on-line monitoring, to confirm the pH value and the specific conductivity of the inner cold water in the pipeline.On the inner cold water transport pipe between strainer and the generator, bye-pass is installed; Bye-pass links to each other with the ion-exchanger import, and the ion-exchanger outlet links to each other with the dosing exit of pump of electric generator inner cooling water tank with the outlet of sodium hydroxide solution dosing tank respectively with pipeline through threeway.When the electric conductivity of inside cold water in the pipeline exceeds standard; Gear makes the part inner cold water get into ion-exchanger by bye-pass; To reduce content of copper ion and the specific conductivity in the water, the inner cold water after ion-exchanger is handled gets into the generator internal cooling water case by the ion-exchanger outlet.When the pH of the inner cold water in pipeline value exceeds standard; Gear starts the dosing water pump; Sodium hydroxide solution in the sodium hydroxide solution dosing tank is squeezed in the pipeline of ion-exchanger outlet; For accurately controlling the add-on of sodium hydroxide solution, the dosing water pump adopts the micro-measurement pump, and the work output of micro-measurement pump feeds back to gear.For guaranteeing the tolerance range of this device; On the pipeline that ion-exchanger exports with the electric generator inner cooling water tank links to each other, online pH meter and online conductivitimeter are installed also; The detection data of above-mentioned two on-line detectors feed back to gear; After by gear the data of 4 on-line detectors being analyzed, the work output of control micro-measurement pump.

Claims (4)

1. a power station inner cold water adds the alkaline purification device automatically; Comprise electric generator inner cooling water tank, the water pump that links to each other with the electric generator inner cooling water tank; Water cooler, strainer have been linked in sequence on the outlet pipeline of water pump; Inner cold water after strainer filters arrives generator through pipe-line transportation; It is characterized in that on the inner cold water transport pipe between strainer and the generator, being equipped with pH value and conductivity measuring apparatus and bye-pass; Bye-pass links to each other with the ion-exchanger import, and the ion-exchanger outlet links to each other with the dosing exit of pump of electric generator inner cooling water tank with the outlet of sodium hydroxide solution dosing tank respectively with pipeline through threeway, and above-mentioned dosing water pump, pH and conductivity measuring apparatus link to each other with gear.
2. power station according to claim 1 inner cold water adds the alkaline purification device automatically, it is characterized in that above-mentioned pH value measurement mechanism is online pH meter, and above-mentioned conductivity measuring apparatus is online conductivitimeter.
3. power station according to claim 2 inner cold water adds the alkaline purification device automatically, it is characterized in that above-mentioned dosing water pump is the micro-measurement pump.
4. power station according to claim 3 inner cold water adds the alkaline purification device automatically, it is characterized in that on the pipeline that above-mentioned ion-exchanger exports with the electric generator inner cooling water tank links to each other, pH value and conductivity measuring apparatus being installed also, and this device links to each other with gear.
CN2011205235005U 2011-12-15 2011-12-15 Inner cooling water automatic alkalifying treatment device for power plant Expired - Fee Related CN202390269U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205235005U CN202390269U (en) 2011-12-15 2011-12-15 Inner cooling water automatic alkalifying treatment device for power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205235005U CN202390269U (en) 2011-12-15 2011-12-15 Inner cooling water automatic alkalifying treatment device for power plant

Publications (1)

Publication Number Publication Date
CN202390269U true CN202390269U (en) 2012-08-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205235005U Expired - Fee Related CN202390269U (en) 2011-12-15 2011-12-15 Inner cooling water automatic alkalifying treatment device for power plant

Country Status (1)

Country Link
CN (1) CN202390269U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102432133A (en) * 2011-12-15 2012-05-02 宁夏电力公司电力科学研究院 Automatic alkalization treatment device for inner cooling water of power plant
CN103309327A (en) * 2013-06-08 2013-09-18 国家电网公司 Monitoring device for detecting leak hydrogen in internal cooling water and evaluating influence on quality of internal cooling water
CN105271448A (en) * 2014-06-26 2016-01-27 池州龙华医药化工有限公司 Pharmaceutical production waste liquid processing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102432133A (en) * 2011-12-15 2012-05-02 宁夏电力公司电力科学研究院 Automatic alkalization treatment device for inner cooling water of power plant
CN103309327A (en) * 2013-06-08 2013-09-18 国家电网公司 Monitoring device for detecting leak hydrogen in internal cooling water and evaluating influence on quality of internal cooling water
CN105271448A (en) * 2014-06-26 2016-01-27 池州龙华医药化工有限公司 Pharmaceutical production waste liquid processing device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120822

Termination date: 20141215

EXPY Termination of patent right or utility model