CN1657895A - On-line monitoring alarm device for leakage of water cooler - Google Patents

On-line monitoring alarm device for leakage of water cooler Download PDF

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Publication number
CN1657895A
CN1657895A CN 200510046056 CN200510046056A CN1657895A CN 1657895 A CN1657895 A CN 1657895A CN 200510046056 CN200510046056 CN 200510046056 CN 200510046056 A CN200510046056 A CN 200510046056A CN 1657895 A CN1657895 A CN 1657895A
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China
Prior art keywords
electrode
water cooler
signal
leakage
gland
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Pending
Application number
CN 200510046056
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Chinese (zh)
Inventor
苏兴冶
李志义
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Dalian University of Technology
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Dalian University of Technology
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Publication date
Application filed by Dalian University of Technology filed Critical Dalian University of Technology
Priority to CN 200510046056 priority Critical patent/CN1657895A/en
Publication of CN1657895A publication Critical patent/CN1657895A/en
Pending legal-status Critical Current

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Abstract

This invention relates to a water cooling revelation on-line monitor alarm device. Its characteristic is this equipment mainly is two major parts is composed by the signal monitor system and the signal processing system. The signal monitor system compares electrode by the senate, instructed electrode, the gland, the padding, the protective covering and the safety mask and so on composes; Signal processing system by signal-amplifier, A/D switch, monolithic integrated circuit, alarm apparatus, monitor compositions. This equipment is the senate compared to the electrode and the instruction electrode took in the sensor insertion circulating water, carries on the monitor through the track potential shift to the water cooling interior revelation. This invention effect and the profit are: the accurately high survey data sensitivity reliable and in time. This equipment is wide adaptive to the monitoring and alarming on the interior leakage of the petroleum chemical industry enterprise water cooler.

Description

On-line monitoring alarm device for leakage of water cooler
Technical field
The invention belongs to technical field of electrochemistry, relate to the online warning device of a kind of leakage of water cooler.
Background technology
Heat interchanger is an indispensable equipment in the petrochemical system, and long-term operation is corroded easily and leaked.Usually adopt recirculated water as heat eliminating medium in petroleum chemical enterprise, this class heat interchanger often is called water cooler.Water cooler will make the heat exchange material that bleeds in the water as internal leakage takes place, and this not only directly influences circulating water quality, and also can grow microorganism and form foundry loam in recirculated water.The generation of foundry loam increases the corrosion rate of equipment on the one hand, makes equipment produce serious fouling on the other hand, influences the heat exchange effect.It is a ubiquitous problem of the domestic petroleum chemical enterprise of puzzlement that the oil plant of circulation leaks.
A kind of solution that contains fluorescent dye that provides to the heat interchanger primary and secondary is provided CN1344365A, the clear liquid that is recycled then offers an opposite side, thus exist to leak in the heat interchanger can be by in clear liquid, detecting fluorescent dye confirmed method.In the method, owing to in the heat exchange material, add the solution that contains fluorescent dye, so the heat exchange material can be polluted.And this method can not be carried out on-line real time monitoring.
CN2484552Y has disclosed a kind of alarm that utilizes the difference of oil and water conductivity to leakage of water cooler implementation online monitoring alarm, is the improvement to the online leakage wireless alarm of patent 98242447.7 disclosed refrigeratorys.This alarm comprises the recirculatory pipe that communicates with the mistress in the sensor, separation chamber of separation chamber, the sampling pipe that communicates with the separation chamber and top, separation chamber.The structure of this alarm is still very complicated, and the problem that the energy consumption problem of flow of cooling water and leakage of oil adhere to tube wall still exists.
Summary of the invention
The purpose of this invention is to provide a kind of warning device of on-line real time monitoring water cooler internal leakage simple in structure, thereby overcome the defective of prior art, for the real-time monitoring of petroleum chemical enterprise's water cooler internal leakage provides effective means.
Know-why of the present invention is: contain sulfuretted hydrogen in oil and petroleum products usually, sulfuretted hydrogen has reductibility, sulfuretted hydrogen will inevitably enter the variation that causes its concentration in recirculated water in the recirculated water together in company with material when the inner generation of water cooler is leaked, this variation will cause the variation of current potential, therefore can whether change to judge whether entered sulfuretted hydrogen in the recirculated water by in recirculated water, measuring current potential, and then judge whether water cooler inside leakage has taken place.
Technical scheme of the present invention is as follows: a kind of on-line monitoring alarm device for leakage of water cooler, this device mainly is made up of signal detection system and signal processing system two large divisions.Signal detection system is made of contrast electrode, indicator electrode, gland, filler, sheath and protective cover etc.; Signal processing system is made of amplifier, A/D converter, single-chip microcomputer, alarm, display etc.It is characterized in that sensor is made of contrast electrode and indicator electrode, contrast electrode is connected with the water cooler outlet conduit respectively with indicator electrode, on contrast electrode and indicator electrode, be respectively equipped with dismountable gland, and in the middle perforate of gland, electrode is passed by tapping and installs, gland play a part the sealing and to positioning of electrode, and by the dismounting gland electrode is cleaned and changes.Outside at contrast electrode and indicator electrode is provided with protective cover, electrode is protected, but made electrode exempt from outside destroy and anticorrosion.Also be respectively equipped with sheath at contrast electrode and indicator electrode outside, be used for guard electrode and avoid fluid impact, and reduce because the signal fluctuation that fluid impact causes reduces measuring error.Be filled with filler respectively between the sheath of contrast electrode and indicator electrode and gland, filler seals, and avoids recirculated water to be flowed out by the slit between sheath and the electrode.Contrast electrode and indicator electrode have constituted sensor, and the electric signal that sends through sensor spreads out of by lead, after signal amplifier amplifies, send into single-chip microcomputer through A/D converter again, report to the police after by single-chip microcomputer data being handled and show.
Indicator electrode in the above-mentioned on-line monitoring alarm device for leakage of water cooler is the inert electrode of being made by materials such as platinum, gold, glassy carbon, graphite, also can be that sulphion is selected electrode, connect mercurous chloride electrode and contrast electrode is mercurous chloride electrode or biliquid, above-mentioned contrast electrode and indicator electrode can mate arbitrarily.Because Hg + 2Ion can disturb S -2Detection, after deliberation, be contrast electrode with the platinum electrode, it is that the sensor construction that constitutes of indicator electrode is simpler that biliquid connects mercurous chloride electrode, sensitivity is higher, detection signal is more reliable.
The signal processing system of above-mentioned on-line monitoring alarm device for leakage of water cooler belongs to the normal signal treatment technology.Wherein used amplifier, A/D converter, single-chip microcomputer, alarm, display etc. belong to universal component and technology.
Effect of the present invention and benefit are:
On-line monitoring alarm device for leakage of water cooler, simple in structure.Owing to adopt electrochemical method, the sensitivity, selectivity and the accuracy that detect are all very high.Again since sensor output be electric signal, thereby easily be automated and analyze continuously.This device can be widely used in the detection alarm of petrochemical enterprise water cooler internal leakage.
Description of drawings
Fig. 1 is the structural representation of on-line monitoring alarm device for leakage of water cooler.
Among the figure: 1 contrast electrode; 2 indicator electrodes; 3 glands; 4 fillers; 5 sheaths; 6 protective covers; 7 amplifiers; 8 A/D converters; 9 single-chip microcomputers; 10 alarms; 11 displays
Fig. 2 is the on-line monitoring alarm device for leakage of water cooler side view.
Embodiment
Be described in detail the specific embodiment of the present invention below in conjunction with technical scheme and accompanying drawing.
Contrast electrode 1, indicator electrode 2, gland 3, filler 4, sheath 5 and protective cover 6 have been formed signal detection system in Fig. 1; Signal amplifier 7, A/D converter 8, single-chip microcomputer 9, alarm 10, display 11 have been formed signal processing system.Constituted the online warning device of leakage of water cooler of the present invention by this signal detection system and signal processing system.
At first electrode sheath 5 is connected with the mode of the water cooler outlet conduit that has perforate with welding or screw thread, again gland 3 is threaded with sheath 5, and filler 4 is loaded between gland 3 and the sheath 5, then with in middle the perforate insertion sheath 5 of contrast electrode 1, indicator electrode 2 by gland 3, electrode probe is contacted with recirculated water in the outlet conduit.Protective cover 6 is installed in the mode that is threaded with sheath 5, and the lead of two electrodes drawn with signal processing system be connected.
When the inner generation of water cooler is leaked, sulfuretted hydrogen will enter in the recirculated water in company with material together, cause the variation of its concentration in recirculated water, this variation will cause potential change, potential changing value by two determination of electrode, after signal processing system is to the signal processing and amplifying, can report to the police and show, thereby realization is to the on-line real time monitoring of water cooler internal leakage.
Sheath 5 is used for guard electrode and avoids fluid impact, and reduces because the signal fluctuation that fluid impact causes reduces measuring error, and protective cover 6 is installed on the sheath 5 in the mode that is threaded simultaneously, is used to prevent that electrode from suffering outside destroy, but and anticorrosion.Filler 4 is glanded 3 effects that can play sealing after compressing, prevents that recirculated water from being flowed out by the slit between sheath 5 and the electrode 1,2.Gland 3 is connected with sheath 5 in the mode that is threaded, and compresses the effect that filler 4 makes it to play sealing, and electrode 1,2 is located.
When removing this device or cleaning, replacing electrode, only need protective cover 6, gland 3 are pulled down, extract electrode 1,2 out, and plug is installed on the sheath 5 gets final product.

Claims (2)

1. on-line monitoring alarm device for leakage of water cooler, this device mainly is made up of signal detection system and signal processing system two large divisions, and signal detection system is made up of contrast electrode, indicator electrode, gland, filler, sheath and protective cover etc.; Signal processing system is made up of signal amplifier, A/D converter, single-chip microcomputer, alarm and display etc., it is characterized in that:
(1) contrast electrode is connected with the water cooler outlet conduit respectively with indicator electrode, is respectively equipped with dismountable gland on contrast electrode and indicator electrode, and in the middle perforate of gland, electrode is passed by tapping and installs;
(2) be respectively equipped with dismountable protective cover in the outside of contrast electrode and indicator electrode;
(3) be respectively equipped with sheath in the outside of contrast electrode and indicator electrode, and between sheath and gland, be filled with filler respectively.
2. a kind of on-line monitoring alarm device for leakage of water cooler according to claim 1 is characterized in that employed contrast electrode is that biliquid connects mercurous chloride electrode, and indicator electrode is a platinum electrode.
CN 200510046056 2005-03-17 2005-03-17 On-line monitoring alarm device for leakage of water cooler Pending CN1657895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200510046056 CN1657895A (en) 2005-03-17 2005-03-17 On-line monitoring alarm device for leakage of water cooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200510046056 CN1657895A (en) 2005-03-17 2005-03-17 On-line monitoring alarm device for leakage of water cooler

Publications (1)

Publication Number Publication Date
CN1657895A true CN1657895A (en) 2005-08-24

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CN 200510046056 Pending CN1657895A (en) 2005-03-17 2005-03-17 On-line monitoring alarm device for leakage of water cooler

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CN (1) CN1657895A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588746A (en) * 2012-03-22 2012-07-18 电子科技大学 Inside-detection device for active electric-field liquid delivery pipelines
CN103018780A (en) * 2012-12-31 2013-04-03 中国科学院合肥物质科学研究院 Probe-type high-frequency-response liquid metal leakage detector
CN103683996A (en) * 2012-08-31 2014-03-26 西门子公司 Inverter
CN104458166A (en) * 2014-12-10 2015-03-25 黑龙江真美广播通讯器材有限公司 Chimney-inner-wall acid liquor detecting system
CN104568348A (en) * 2015-02-09 2015-04-29 福建龙净环保股份有限公司 Device for detecting work substance leakage of heat exchange device of low-low temperature electric precipitator
CN108627305A (en) * 2017-03-23 2018-10-09 青岛海尔空调器有限总公司 The method and air-conditioning system of air-conditioning system sealing propertytest
CN109682555A (en) * 2018-12-26 2019-04-26 郑州云海信息技术有限公司 A kind of system and method for BMC detection liquid cooled server leakage
CN111613416A (en) * 2020-04-30 2020-09-01 国家电网有限公司 High temperature resistant corrosion-resistant transformer oil leakage on-line monitoring device
CN112179951A (en) * 2020-10-29 2021-01-05 中国船舶工业集团公司第七0八研究所 Device and method for monitoring fuel leakage in water tank

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588746A (en) * 2012-03-22 2012-07-18 电子科技大学 Inside-detection device for active electric-field liquid delivery pipelines
CN103683996A (en) * 2012-08-31 2014-03-26 西门子公司 Inverter
CN103683996B (en) * 2012-08-31 2016-08-17 西门子公司 A kind of inverter
CN103018780B (en) * 2012-12-31 2015-11-04 中国科学院合肥物质科学研究院 A kind of Probe-type high-frequency-respoliquid liquid metal leakage detector
CN103018780A (en) * 2012-12-31 2013-04-03 中国科学院合肥物质科学研究院 Probe-type high-frequency-response liquid metal leakage detector
CN104458166A (en) * 2014-12-10 2015-03-25 黑龙江真美广播通讯器材有限公司 Chimney-inner-wall acid liquor detecting system
CN104568348A (en) * 2015-02-09 2015-04-29 福建龙净环保股份有限公司 Device for detecting work substance leakage of heat exchange device of low-low temperature electric precipitator
CN104568348B (en) * 2015-02-09 2017-02-22 福建龙净环保股份有限公司 Device for detecting work substance leakage of heat exchange device of low-low temperature electric precipitator
CN108627305A (en) * 2017-03-23 2018-10-09 青岛海尔空调器有限总公司 The method and air-conditioning system of air-conditioning system sealing propertytest
CN108627305B (en) * 2017-03-23 2020-05-29 青岛海尔空调器有限总公司 Air conditioning system and method for detecting air conditioning system tightness
CN109682555A (en) * 2018-12-26 2019-04-26 郑州云海信息技术有限公司 A kind of system and method for BMC detection liquid cooled server leakage
CN111613416A (en) * 2020-04-30 2020-09-01 国家电网有限公司 High temperature resistant corrosion-resistant transformer oil leakage on-line monitoring device
CN112179951A (en) * 2020-10-29 2021-01-05 中国船舶工业集团公司第七0八研究所 Device and method for monitoring fuel leakage in water tank

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