CN201514776U - Automatic dispersant-alkalizer feeding monitor device for nuclear power station - Google Patents

Automatic dispersant-alkalizer feeding monitor device for nuclear power station Download PDF

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Publication number
CN201514776U
CN201514776U CN2009201422024U CN200920142202U CN201514776U CN 201514776 U CN201514776 U CN 201514776U CN 2009201422024 U CN2009201422024 U CN 2009201422024U CN 200920142202 U CN200920142202 U CN 200920142202U CN 201514776 U CN201514776 U CN 201514776U
Authority
CN
China
Prior art keywords
plc control
dosing
steam generator
basifier
alkalizer
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 - Lifetime
Application number
CN2009201422024U
Other languages
Chinese (zh)
Inventor
李新民
何蓉
林根仙
鲁俊东
刘斌
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.)
China General Nuclear Power Corp
Suzhou Nuclear Power Research Institute Co Ltd
Original Assignee
Suzhou Nuclear Power Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Nuclear Power Research Institute Co Ltd filed Critical Suzhou Nuclear Power Research Institute Co Ltd
Priority to CN2009201422024U priority Critical patent/CN201514776U/en
Application granted granted Critical
Publication of CN201514776U publication Critical patent/CN201514776U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The utility model relates to an automatic dispersant-alkalizer feeding monitor device for a nuclear power station. The automatic monitor device comprises a PLC control system, an alkalizer feeding pump, a dispersant feeding pump and a solenoid valve, wherein the PLC control system is electrically connected with the alkalizer feeding pump, the dispersant feeding pump and the solenoid valve; the PLC control system includes two detection units arranged at the water inlet and a waste water outlet of a steam generator; the two detection units are connected with the PLC control system through signals so as to promptly transmit the detected data to the PLC control system; a plurality of standard data are preset in the PLC control system, including standard pH value, standard iron content and standard zeta potential; and, after receiving the data from the detection units, the PLC control unit compares the data with the preset standard data so as to respectively control the action of the alkalizer feeding pump, the dispersant feeding pump and the solenoid valve.

Description

Used in nuclear power station spreading agent-basifier dosing automatic monitoring device
Technical field
The utility model relates to a kind of supervising device, particularly a kind of used in nuclear power station spreading agent-basifier dosing automatic monitoring device.
Background technology
Spreading agent in the steam generator and basifier need be controlled in certain concentration range, and this just need control chemicals dosing plant.At present, the supervisory system of known chemicals dosing plant comes chemicals dosing plant is controlled according to the pH value of sampling solution, but only measure the effect that the pH value can not reflect dosing fully, for example can not learn the situation of the corrosion contamination in the steam generator, when the corrosion contamination amount in the steam generator is big, can aggravate the corrosion of steam generator.And can't learn the stability of dispersed system, thereby can't control the consumption of spreading agent.
Summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model provides a kind of Automatic Dosing control device, and this device can be finished operations such as on-line measurement, dosing control and service data record automatically.
For reaching above purpose, the technical solution adopted in the utility model is: a kind of used in nuclear power station spreading agent-basifier dosing automatic monitoring device, be used for the chemicals dosing plant and the blowdown apparatus of steam generator are monitored, described chemicals dosing plant comprises dense medicine-chest, molten medicine-chest, the basifier dosing pump, the spreading agent dosing pump, described blowdown apparatus comprises the solenoid valve that is arranged on the sewage outlet place, described automatic monitoring device comprises the PLC control system, this PLC control system and described basifier dosing pump, the spreading agent dosing pump, solenoid valve all is electrically connected, described PLC control system comprises that the admission port that is arranged on steam generator is located and two detecting units at sewage outlet place, the described detecting unit that is arranged on place, steam generator admission port comprises first pH meter, the first iron content monitor, the one zeta potentiometer, the described detecting unit that is arranged on steam generator sewage outlet place comprises second pH meter, the second iron content monitor, the 2nd zeta potentiometer, described two detecting units all connect with signal to realize that its detected data in time are transferred to the PLC control system with the PLC control system, be preset with a plurality of normal datas in the described PLC control system, described a plurality of preset standard data comprise the standard pH value at least, the standard iron content, standard zeta current potential, described PLC control system receives after the data of described detecting unit transmission with default normal data and compares analysis, thereby controls described basifier dosing pump respectively, the spreading agent dosing pump, the solenoid valve action.
Preferably, described PLC control system has data memory module.
Because the enforcement of above technical scheme, the utility model compared with prior art, has following advantage: pH value, iron content and the zeta current potential that can onlinely record the admission port and the sewage outlet place of steam generator, utilize the add dose of PLC, can effectively control the concentration of interior stove water dispersant of steam generator and basifier according to above-mentioned Data Control chemicals dosing plant.
Description of drawings
Accompanying drawing 1 is a synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As shown in Figure 1, a kind of used in nuclear power station spreading agent-basifier dosing automatic monitoring device, be used for the chemicals dosing plant and the blowdown apparatus of steam generator are monitored, chemicals dosing plant comprises dense medicine-chest, molten medicine-chest, basifier dosing pump, spreading agent dosing pump, and blowdown apparatus comprises the solenoid valve that is arranged on the sewage outlet place.
Automatic monitoring device comprises the PLC control system, this PLC control system and basifier dosing pump, the spreading agent dosing pump, solenoid valve all is electrically connected, the PLC control system comprises that the admission port that is arranged on steam generator is located and two detecting units at sewage outlet place, the detecting unit that is arranged on the steam generator water inlet comprises first pH meter, the first iron content monitor, (the zeta potentiometer is a kind of instrument that is used to measure the zeta current potential to the one zeta potentiometer, the definition of above-mentioned zeta current potential is: because charged corpuscle attracts the particle of oppositely charged in the disperse system, the ion near from particle surface fettered strongly, and those distances ion far away forms a loose electron cloud, the inside and outside potential difference (PD) of electron cloud just is called the zeta current potential), the detecting unit that is arranged on steam generator sewage outlet place comprises second pH meter, the second iron content monitor, the 2nd zeta potentiometer.PH meter is used to measure the pH value of measurement point water sample, and the iron content detector is used to measure the iron content of measurement point water sample, and the zeta potentiometer is used to measure the zeta current potential of measurement point water sample.Two detecting units all connect with signal to realize that its detected data in time are transferred to the PLC control system with the PLC control system, be preset with a plurality of normal datas in the PLC control system, a plurality of preset standard data comprise standard pH value, standard iron content, standard zeta current potential at least, the PLC control system receives after the data of detecting unit transmission with default normal data and compares, thereby controls basifier dosing pump, spreading agent dosing pump, solenoid valve action respectively.
The control procedure of PLC control system is:
The control of pH value: default standard pH value scope is 9.2~9.8, when being higher than 9.8, feedwater pH value stops the dosing of basifier dosing pump, when feedwater pH value is lower than 9.2, starts the basifier dosing pump and begin dosing, and adjust the frequency of dosing pump dosing according to the pH rate of change;
The control of iron content: the ratio that compares flow of inlet water * water inlet iron content and sewer flow * sewer iron content, if both unbalance factors are bigger, start the spreading agent dosing pump, and start the blowdown flow rate that solenoid valve strengthens steam generator, the contamination of steam generator is discharged.
The control of zeta current potential: the zeta current potential is used to judge whether spreading agent adds dose suitable, different system also can be different because of the different zeta current potentials of corrosion product, so the staff can be rule of thumb, when determining different zeta current potential the debugging spreading agent add dose, finally guarantee the zeta control of Electric potentials in the reasonable scope.
For the ease of the statistics of data, the PLC control system has data memory module, and the pH value that records, iron content, zeta electrogram are got off.
Above embodiment only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection domain of the present utility model with this; all equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the present utility model.

Claims (2)

1. used in nuclear power station spreading agent-basifier dosing automatic monitoring device, be used for the chemicals dosing plant and the blowdown apparatus of steam generator are monitored, described chemicals dosing plant comprises dense medicine-chest, molten medicine-chest, the basifier dosing pump, the spreading agent dosing pump, described blowdown apparatus comprises the solenoid valve that is arranged on the sewage outlet place, it is characterized in that: described automatic monitoring device comprises the PLC control system, this PLC control system and described basifier dosing pump, the spreading agent dosing pump, solenoid valve all is electrically connected, described PLC control system comprises that the admission port that is arranged on steam generator is located and two detecting units at sewage outlet place, the described detecting unit that is arranged on the steam generator water inlet comprises first pH meter, the first iron content monitor, the one zeta potentiometer, the described detecting unit that is arranged on steam generator sewage outlet place comprises second pH meter, the second iron content monitor, the 2nd zeta potentiometer, described two detecting units all connect with signal to realize that its detected data in time are transferred to the PLC control system with the PLC control system.
2. used in nuclear power station spreading agent according to claim 1-basifier dosing automatic monitoring device is characterized in that: described PLC control system has data memory module.
CN2009201422024U 2009-03-28 2009-03-28 Automatic dispersant-alkalizer feeding monitor device for nuclear power station Expired - Lifetime CN201514776U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201422024U CN201514776U (en) 2009-03-28 2009-03-28 Automatic dispersant-alkalizer feeding monitor device for nuclear power station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201422024U CN201514776U (en) 2009-03-28 2009-03-28 Automatic dispersant-alkalizer feeding monitor device for nuclear power station

Publications (1)

Publication Number Publication Date
CN201514776U true CN201514776U (en) 2010-06-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201422024U Expired - Lifetime CN201514776U (en) 2009-03-28 2009-03-28 Automatic dispersant-alkalizer feeding monitor device for nuclear power station

Country Status (1)

Country Link
CN (1) CN201514776U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105551547A (en) * 2015-12-15 2016-05-04 中广核工程有限公司 Medicine adding device of closed circulation system of nuclear power station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105551547A (en) * 2015-12-15 2016-05-04 中广核工程有限公司 Medicine adding device of closed circulation system of nuclear power station

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 215004 NO. 1788, WEST RING ROAD, SUZHOU CITY, JIANGSU PROVINCE TO: 215004 NO. 1788, WEST RING ROAD, JINCHANG DISTRICT, SUZHOU CITY, JIANGSU PROVINCE

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20110309

Address after: The West Loop Jinchang District Suzhou city Jiangsu province 215004 No. 1788

Co-patentee after: China Guangdong Nuclear Power Group Co., Ltd.

Patentee after: Suzhou Nuclear Power Research Institute Co., Ltd.

Address before: 215004 West Ring Road, Jiangsu, Suzhou, No. 1788

Patentee before: Suzhou Nuclear Power Research Institute Co., Ltd.

ASS Succession or assignment of patent right

Owner name: CHINA GUANGDONG NUCLEAR POWER GROUP CO., LTD.

C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 215004 West Ring Road, Jiangsu, Suzhou, No. 1788

Patentee after: Suzhou Nuclear Power Research Institute Co., Ltd.

Patentee after: China General Nuclear Power Corporation

Address before: The West Loop Jinchang District Suzhou city Jiangsu province 215004 No. 1788

Patentee before: Suzhou Nuclear Power Research Institute Co., Ltd.

Patentee before: China Guangdong Nuclear Power Group Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100623