CN203101373U - Automatic alarm device for monitoring amount of dissolved oxygen in condensed water - Google Patents
Automatic alarm device for monitoring amount of dissolved oxygen in condensed water Download PDFInfo
- Publication number
- CN203101373U CN203101373U CN 201320127887 CN201320127887U CN203101373U CN 203101373 U CN203101373 U CN 203101373U CN 201320127887 CN201320127887 CN 201320127887 CN 201320127887 U CN201320127887 U CN 201320127887U CN 203101373 U CN203101373 U CN 203101373U
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- China
- Prior art keywords
- dissolved oxygen
- switch
- condensed water
- oxygen sensor
- plc controller
- 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.)
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000001301 oxygen Substances 0.000 title claims abstract description 57
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
本实用新型公开了一种凝结水溶解氧监控自动报警装置，包括LED显示屏（3）及溶解氧传感器（2）、PLC控制器（4）、红灯（5）、绿灯（6）、电源端（7）、两个开关（8、9）以及计算机（10）。所述溶解氧传感器（2）与凝结水采集管道（1）相连，所述LED显示屏（3）与溶解氧传感器（2）连接，所述PLC控制器（4）控制着第一开关（8）和第二开关（9）并采集来自溶解氧传感器（2）的信息，所述第一开关（8）与红灯（5）串联，第二开关（9）与绿灯（6）串联，所述PLC控制器（4）通过接线连接到计算机（10）上。通过本实用新型可以实现远距离凝结水溶解氧监控，并根据凝结水溶解氧率的规定标准实现凝结水超标报警的目的。
The utility model discloses an automatic alarm device for monitoring dissolved oxygen in condensed water, which comprises an LED display (3), a dissolved oxygen sensor (2), a PLC controller (4), a red light (5), a green light (6), a power supply terminal (7), two switches (8, 9) and a computer (10). The dissolved oxygen sensor (2) is connected to the condensed water collection pipeline (1), the LED display screen (3) is connected to the dissolved oxygen sensor (2), and the PLC controller (4) controls the first switch (8 ) and the second switch (9) and collect information from the dissolved oxygen sensor (2), the first switch (8) is connected in series with the red light (5), and the second switch (9) is connected in series with the green light (6), so The PLC controller (4) is connected to the computer (10) through wiring. The utility model can realize the remote monitoring of the dissolved oxygen of the condensed water, and realize the purpose of alarming the condensed water exceeding the standard according to the prescribed standard of the dissolved oxygen rate of the condensed water.
Description
Technical field
The utility model belongs to monitoring technical field, and specifically, the utility model relates to a kind of condensate water dissolved oxygen DO monitoring automatic alarm device.
Background technology
Condensate water exists dissolved oxygen DO to threaten the economy and the security of unit, when the condensate water dissolved oxygen content is big, can cause the corrosion of condensate system, can cause that also condensate water enters the corrosion product of water supply system, influences water quality.Practical operating experiences shows that the dissolved oxygen DO in the feedwater is the main cause of boiler and utility appliance corrosion.Big unit is along with the raising of parameter, automaticity, and is also more and more higher to the quality requirements of the actuating medium of thermodynamic cycle, and the standard of the water quality requirement of steam turbine condensate water is progressively improved, and the condensate water dissolved oxygen content is one of important indicator that characterizes condensate water water quality.
When being dissolved with oxygen in the water, can be equipped with pipeline, economizer and boiler body heat-transfer surface inside surface, the heating power exchanged heat of heat power equipment etc. has corrosion failure effect, the serviceable life of especially having reduced equipment under hot conditions.And dissolved gases can not condense in heat-exchange apparatus in the water, when steam is condensed and after gas separated out, can form air film at the heat-transfer surface of heat-exchange apparatus, increases the thermal resistance of well heater, influences heat-transfer effect.So dissolved oxygen DO is very big to safety, the economical operation harm of power plant in the feedwater, so it must be removed, and that the monitoring of the oxygen in water that condenses just seems is extremely important, dissolved oxygen content is the important indicator of condensate water water quality, in case find that dissolved oxygen DO exceeds standard, must immediately take appropriate measures, to guarantee the safe and stable operation of heat power equipment, so, monitor dissolved oxygen content in the condensate water in real time and judge that in time whether dissolved oxygen content normally has important practical sense to whole heat power equipment safe, stable.
The research and development of monitoring and autoalarm can guarantee to monitor in real time the condensate water dissolved oxygen content and also in time find the unusual of condensate water dissolved oxygen content, so that be the safe and stable operation increase guarantee of therrmodynamic system.
Summary of the invention
Problem to be solved in the utility model is can realize the monitoring of condensate water dissolved oxygen DO and report to the police automatically.
In order to address the above problem, the utility model provides a kind of condensate water dissolved oxygen DO monitoring automatic alarm device, comprises LED display and dissolved oxygen sensor, PLC controller, red light, green light, power end, first switch, second switch and computing machine.Described dissolved oxygen sensor is gathered pipeline with condensate water and is linked to each other, described LED display is connected with dissolved oxygen sensor, described PLC controller is being controlled first switch and second switch and is being accepted signal from dissolved oxygen sensor simultaneously, described first switch is connected with red light, second switch is connected with green light, and described PLC controller is connected on the computing machine by wiring..
Adopt the monitoring of condensate water dissolved oxygen DO and the autoalarm of such scheme, dissolved oxygen sensor is gathered pipeline from condensate water and is monitored data, these data are presented at the outside surface of device by direct-connected LED display, and transfer data on the remote-operated computing machine by the PLC controller, can find condensate water dissolved oxygen DO data by the man-machine interface that computing machine provides, by computer installation condensate water dissolved oxygen DO standard, whether the PLC controller can exceed standard to make to the condensate water dissolved oxygen DO is judged and simultaneously instruction is sent and give first switch and second switch, if dissolved oxygen DO exceeds standard, first switch closure then, red light is bright, otherwise, second switch closure, thereby monitoring of the bright realization of green light condensate water dissolved oxygen DO and the purpose of reporting to the police automatically.
Description of drawings
Accompanying drawing 1 is the utility model structural representation;
Wherein each arabic numeral are represented as: 1 condensate water is gathered pipeline; 2 dissolved oxygen sensors; 3 LED display; 4 PLC controllers; 5 red lights; 6 green lights; 7 power ends; 8 first switches; 9 second switches; 10 computing machines
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to accompanying drawing, described dissolved oxygen sensor 2 is gathered pipeline 1 with condensate water and is linked to each other, described LED display 3 is connected with dissolved oxygen sensor 2, it is characterized in that: LED display 3 is accepted from the signal of dissolved oxygen sensor 2 and is passed through the digital display form with the dissolved oxygen DO data presentation; Described red light 5 all is connected with power end 7 with second switch 9 with first switch 8 and green light 6; Described first switch 8 directly is connected with PLC controller 4 with second switch 9; Described PLC controller 4 links to each other with computing machine 10.Can and realize the automatic warning that the condensate water dissolved oxygen DO exceeds standard to the monitoring of condensate water dissolved oxygen DO by the collaborative of PLC controller and computing machine.
Major function of the present utility model: dissolved oxygen DO detects automatically, data monitoring, and warning exceeds standard.
Technology path of the present utility model:
Collaborative realization by dissolved oxygen sensor and PLC controller and two pilot lamp and remote computer is to the remote monitoring of condensate water dissolved oxygen DO and warning function automatically.
Concrete implementation step is as follows:
1, monitors condensate water dissolved oxygen DO data by dissolved oxygen sensor 2, data are shown by digital form by the LED display that links to each other 3.
2, PLC controller 4 is collected dissolved oxygen sensor 2 data monitored and is transferred to long-range computing machine 10, can realize remote monitoring with the dissolved oxygen DO data with the storage of excel form by man-machine interface.
3, according to the dissolved oxygen DO standard that is provided with, whether PLC controller 4 exceeds standard by the data that judgement collects, and first switch 8, second switch 9 are sent instruction, by the control red light 5 of switch and the light on and off of green light 6, thereby reaches the purpose that exceeds standard and report to the police.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127887 CN203101373U (en) | 2013-03-20 | 2013-03-20 | Automatic alarm device for monitoring amount of dissolved oxygen in condensed water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127887 CN203101373U (en) | 2013-03-20 | 2013-03-20 | Automatic alarm device for monitoring amount of dissolved oxygen in condensed water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203101373U true CN203101373U (en) | 2013-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320127887 Expired - Fee Related CN203101373U (en) | 2013-03-20 | 2013-03-20 | Automatic alarm device for monitoring amount of dissolved oxygen in condensed water |
Country Status (1)
| Country | Link |
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| CN (1) | CN203101373U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464854A (en) * | 2014-12-24 | 2015-03-25 | 长沙理工大学 | Method for diagnosing abnormal oxygen index of condensed water of nuclear power plant |
| CN105021788A (en) * | 2015-07-14 | 2015-11-04 | 大唐洛阳热电有限责任公司 | Water quality monitoring method of condensation water from thermal power plant |
| CN105334304A (en) * | 2015-11-09 | 2016-02-17 | 巫溪县薯光农业科技开发有限公司 | Underwater oxygen content measuring device |
| CN105334302A (en) * | 2015-10-22 | 2016-02-17 | 无锡市永亿精密铸造有限公司 | Water-body oxygen-deficit alarm apparatus |
-
2013
- 2013-03-20 CN CN 201320127887 patent/CN203101373U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464854A (en) * | 2014-12-24 | 2015-03-25 | 长沙理工大学 | Method for diagnosing abnormal oxygen index of condensed water of nuclear power plant |
| CN105021788A (en) * | 2015-07-14 | 2015-11-04 | 大唐洛阳热电有限责任公司 | Water quality monitoring method of condensation water from thermal power plant |
| CN105334302A (en) * | 2015-10-22 | 2016-02-17 | 无锡市永亿精密铸造有限公司 | Water-body oxygen-deficit alarm apparatus |
| CN105334304A (en) * | 2015-11-09 | 2016-02-17 | 巫溪县薯光农业科技开发有限公司 | Underwater oxygen content measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140320 |