CN203642989U - Boiler water level monitoring device - Google Patents
Boiler water level monitoring device Download PDFInfo
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- CN203642989U CN203642989U CN201320681446.6U CN201320681446U CN203642989U CN 203642989 U CN203642989 U CN 203642989U CN 201320681446 U CN201320681446 U CN 201320681446U CN 203642989 U CN203642989 U CN 203642989U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 14
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000009422 external insulation Methods 0.000 abstract 1
- 239000009671 shengli Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a boiler water level monitoring device which comprises a double-chamber balancing container used for detecting a steam drum water level, and a compensation system used for automatically compensating a detection value of the double-chamber balancing container, wherein the compensation system is used for eliminating a deviation caused by density variation to water level measurement in the double-chamber balancing container. The monitoring device adopts the compensation system comprising a pressure compensation system and a compensation processing system to reduce an error of a steam drum water level measurement system, so that an influence of the medium density variation on the water level measurement is overcome, the steam drum water level detection sensitivity is improved, and the accuracy is improved. The compensation system automatically compensates according to the basic feature of the container, so that the compensation system is wide in application scope. An external insulation layer of the container allows an external temperature condition of a condensed steam chamber of the container to be in a relatively stable measurement state, so that restriction of a medium due to resistance of a pipeline and the like in a natural convection state is reduced, and the measurement accuracy is improved.
Description
Technical field
The utility model relates to boiler drum level measuring instrument field, particularly the two equalizing reservoirs of putting of a kind of boiler-steam dome.
Background technology
As everyone knows, in industrial automation is produced, steam water-level is one of most important parameter in boiler and control system thereof, and two chambers equalizing reservoir is serving as indispensable key player therein.Boiler-steam dome equalizing reservoir is for supporting the use to detect steam water-level with water level indicator or differential pressure transmitter.But because the aspects such as two chambers equalizing reservoir and measurement thereof also exist careless omission, wrong generation while causing in application, even forms potential safety hazard.For example Shengli Oil Field Shengli Power Plant first stage of the project, put into operation the error of early stage its Drum Level Measurement System of this project reaches 70～90mm, in particular cases larger (once therefore causing drum full water stopping accident) of error unexpectedly.Steam water-level relates to unit safety and important parameter and index with operation, does not therefore allow any artificial error.
Existing built-in equalizing reservoir is because the water temperature in solidifying air chamber is lower than the water temperature in balance tank, and differ larger, in the time that the water in solidifying air chamber flows in balance tank, cause the variation of water temperature in balance tank, in balance tank, the density temperature influence of water changes, thereby cause that on differential pressure transmitter, pressure reduction changes, indication produces fluctuation, brings error to level gauging.Existing external equalizing reservoir is owing to being subject to the impact of environment temperature, water temperature in solidifying air chamber is more much lower than water temperature in drum, and the water temperature in solidifying air chamber changes with the variation of the interior water temperature of drum inconsistent, that is to say that the variable density of the water in solidifying air chamber and the variation of the interior water-mass density of drum are inconsistent, thereby cause differential pressure transmitter jitter, measuring error is larger than built-in equalizing reservoir.Ru Mounengkong center has 20 tons of boilers to have three, and 1#, 2# cogeneration station machine generator have 4.The detecting reliability of generator condenser water level and boiler drum level, is related to the safe operation of center boiler and generator.What steam water-level detection mode all adopted at present is magnetic turnover panel mode, and which is affected by water-level fluctuation easily, and detecting reliability is poor, easily produces artifical water height.Because error signal can cause boiler shutdown, generator outage.The company that affects produces, and hence one can see that need to look for a kind of energy device accurate and stably measured steam water-level to seem most important.
Utility model content
In view of this, technical problem to be solved in the utility model is to provide a kind of energy accurately and the device of stably measured steam water-level.
The utility model is achieved through the following technical solutions:
The boiler water level monitoring device that the utility model provides, comprises the two chambers equalizing reservoir for detecting steam water-level and the detected value of two chambers equalizing reservoir is carried out to the bucking-out system of auto-compensation; Described bucking-out system, the deviation due to variable density, level measuring being caused for eliminating two chambers equalizing reservoir.
Further, described pair of chamber equalizing reservoir comprises condensing chamber, benchmark cup, overflow chamber and linker;
The top of described benchmark cup is provided with annular funnel-like part, and whole pair of chamber equalizing reservoir is separated into upper and lower two parts by described annular funnel-like part, and described top is divided into condensing chamber, and described bottom is divided into overflow chamber;
Described condensing chamber, for forming saturated condensate water from the saturated vapor of Drum Level Measurement System;
Described benchmark cup, derives container for collecting the pressure producing from the condensate water of condensing chamber and by condensate water, is transmitted to differential pressure measurement instrument;
Described overflow chamber, for collecting the condensate water that benchmark cup overflows and condensate water being entered to boiler downtake;
Described linker one end access drum, the suction side of other end access transmitter, for passing to the pressure of dynamic drum water level generation the suction side of pressure unit.
Further, described bucking-out system comprises pressure compensating system and compensation deals system;
Described pressure compensating system obtains pressure signal by being arranged at pressure transducer in the water in drum, and pressure signal is input to compensation deals system by pressure unit.
Further, described bucking-out system also comprises temperature-compensated system;
Described temperature-compensated system is obtained temperature signal by the temperature sensor being arranged in drum, and temperature signal is input to compensation deals system by temperature transmitter.
Further, also comprise display, described display is connected with compensation deals system.
Further, also comprise external container heat-insulation layer, described external container heat-insulation layer comprises container condensing chamber heat-insulation layer and container top heat-insulation layer.
Further, described linker is inverted T-shape linker, its horizontal component one end access drum, the suction side of other end cut-in pressure transmitter.
The beneficial effects of the utility model are: the utility model adopts and comprises that the bucking-out system of pressure compensating system and compensation deals system reduces the error of Drum Level Measurement System, overcome Media density and changed the impact on level measuring, the sensitivity that detects steam water-level improves, and accuracy improves.The bucking-out system that the utility model provides is to carry out auto-compensation according to the essential characteristic of container, and therefore, bucking-out system is applied widely.The external container heat-insulation layer that the utility model provides makes the external temperature condition of condensing chamber of container in metastable a kind of measuring state, reduced medium in natural convection and has been subject to the restriction of the resistance of pipeline etc., improved the accuracy of measuring.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
The structural drawing of the boiler water level monitoring device that Fig. 1 provides for the utility model embodiment.
In figure, 1, two chambers equalizing reservoir; 2, condensing chamber; 3, benchmark cup; 4, overflow chamber; 5, linker; 6, external container heat-insulation layer; 7, temperature transmitter; 8, pressure unit; 9, compensation deals system; 10, display.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment is only for the utility model is described, rather than in order to limit protection domain of the present utility model.
The structural drawing of the boiler water level monitoring device that Fig. 1 provides for the utility model embodiment, as shown in the figure: the boiler water level monitoring device that the utility model provides, comprises the two chambers equalizing reservoir 1 for detecting steam water-level and the detected value of two chambers equalizing reservoir is carried out to the bucking-out system of auto-compensation; Described bucking-out system, the deviation due to variable density, level measuring being caused for eliminating two chambers equalizing reservoir 1.
Described pair of chamber equalizing reservoir comprises condensing chamber 2, benchmark cup 3, overflow chamber 4 and linker 5;
The top of described benchmark cup 3 is provided with annular funnel-like part, and whole pair of chamber equalizing reservoir 1 is separated into upper and lower two parts by described annular funnel-like part, and described top is divided into condensing chamber 2, and described bottom is divided into overflow chamber 4;
Described condensing chamber 2, for forming saturated condensate water from the saturated vapor of Drum Level Measurement System;
Described benchmark cup 3, derives container for collecting the pressure producing from the condensate water of condensing chamber and by condensate water, is transmitted to differential pressure measurement instrument;
Described overflow chamber 4, for collecting the condensate water that benchmark cup overflows and condensate water being entered to boiler downtake;
Described linker 5 one end access drums, the suction side of other end access transmitter, for passing to the pressure of dynamic drum water level generation the suction side of pressure unit 8.
Described bucking-out system comprises pressure compensating system and compensation deals system;
Described pressure compensating system obtains pressure signal by being arranged at pressure transducer in the water in drum, and pressure signal is input to compensation deals system 9 by pressure unit 8.
Described bucking-out system also comprises temperature-compensated system;
Described temperature-compensated system is obtained temperature signal by the temperature sensor being arranged in drum, and temperature signal is input to compensation deals system by temperature transmitter 7.
Also comprise display 10, described display is connected with compensation deals system.
Also comprise external container heat-insulation layer 6, described external container heat-insulation layer 6 comprises container condensing chamber heat-insulation layer and container top heat-insulation layer.
Described linker is inverted T-shape linker, its horizontal component one end access drum, the suction side of other end cut-in pressure transmitter.
By experiment, by the steam water-level of original boiler (each boiler divide left and right 2 detections) and generator condenser water level, through after being transformed into differential pressure mode and detecting, effect is fine, has improved the safe operation of boiler and generator.Therefore, there is application value in steel mill.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by the utility model being described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present utility model that appended claims limits.
Claims (6)
1. boiler water level monitoring device, is characterized in that: comprise the two chambers equalizing reservoir for detecting steam water-level and the detected value of two chambers equalizing reservoir is carried out to the bucking-out system of auto-compensation; Described pair of chamber equalizing reservoir comprises condensing chamber, benchmark cup, overflow chamber and linker;
Described bucking-out system, the deviation due to variable density, level measuring being caused for eliminating two chambers equalizing reservoir, described bucking-out system comprises pressure compensating system and compensation deals system;
Described pressure compensating system obtains pressure signal by being arranged at pressure transducer in the water in drum, and pressure signal is input to compensation deals system by pressure unit.
2. boiler water level monitoring device according to claim 1, is characterized in that:
The top of described benchmark cup is provided with annular funnel-like part, and whole pair of chamber equalizing reservoir is separated into upper and lower two parts by described annular funnel-like part, and described top is divided into condensing chamber, and described bottom is divided into overflow chamber;
Described condensing chamber, for forming saturated condensate water from the saturated vapor of Drum Level Measurement System;
Described benchmark cup, derives container for collecting the pressure producing from the condensate water of condensing chamber and by condensate water, is transmitted to differential pressure measurement instrument;
Described overflow chamber, for collecting the condensate water that benchmark cup overflows and condensate water being entered to boiler downtake;
Described linker one end access drum, the suction side of other end access transmitter, for passing to the pressure of dynamic drum water level generation the suction side of pressure unit.
3. boiler water level monitoring device according to claim 1, is characterized in that: described bucking-out system also comprises temperature-compensated system;
Described temperature-compensated system is obtained temperature signal by the temperature sensor being arranged in drum, and temperature signal is input to compensation deals system by temperature transmitter.
4. boiler water level monitoring device according to claim 3, is characterized in that: also comprise display, described display is connected with compensation deals system.
5. boiler water level monitoring device according to claim 1, is characterized in that: also comprise external container heat-insulation layer, described external container heat-insulation layer comprises container condensing chamber heat-insulation layer and container top heat-insulation layer.
6. boiler water level monitoring device according to claim 2, is characterized in that: described linker is inverted T-shape linker, its horizontal component one end access drum, the suction side of other end cut-in pressure transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681446.6U CN203642989U (en) | 2013-10-30 | 2013-10-30 | Boiler water level monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681446.6U CN203642989U (en) | 2013-10-30 | 2013-10-30 | Boiler water level monitoring device |
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| CN203642989U true CN203642989U (en) | 2014-06-11 |
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| CN201320681446.6U Expired - Fee Related CN203642989U (en) | 2013-10-30 | 2013-10-30 | Boiler water level monitoring device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121960A (en) * | 2014-07-24 | 2014-10-29 | 江苏永钢集团有限公司 | Turbine condensate water hot well water level monitoring device |
| CN105424141A (en) * | 2015-12-25 | 2016-03-23 | 蚌埠玻璃工业设计研究院 | Waste heat power generation boiler water level monitoring device |
| CN105547406A (en) * | 2015-12-09 | 2016-05-04 | 中广核工程有限公司 | Measuring system and measuring method for water level of nuclear power plant steam generator |
| CN106137082A (en) * | 2015-04-24 | 2016-11-23 | 青岛海尔洗碗机有限公司 | High water-level alarm device and dish-washing machine for dish-washing machine |
| CN106940215A (en) * | 2017-02-07 | 2017-07-11 | 沈阳华控科技发展有限公司 | A kind of built-in steam drum liquid level measurement device of intelligent compensation |
| CN107525561A (en) * | 2016-06-22 | 2017-12-29 | 山东省冶金设计院股份有限公司 | A kind of steam boiler liquid level of steam drum detecting system |
| CN109387258A (en) * | 2018-11-23 | 2019-02-26 | 中国二十二冶集团有限公司 | Heat exchanger condensed water liquid level control system and method are measured or controlled using differential pressure transmitter |
| CN110779075A (en) * | 2019-09-18 | 2020-02-11 | 新疆昌吉特变能源有限责任公司 | Water level feedforward control method for heat supply network heater |
| CN111397688A (en) * | 2020-04-02 | 2020-07-10 | 唐山市丰润区展望自动化设备有限公司 | Liquid level measuring device for double-chamber balance container |
-
2013
- 2013-10-30 CN CN201320681446.6U patent/CN203642989U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121960A (en) * | 2014-07-24 | 2014-10-29 | 江苏永钢集团有限公司 | Turbine condensate water hot well water level monitoring device |
| CN106137082B (en) * | 2015-04-24 | 2020-05-26 | 青岛海尔洗碗机有限公司 | High water level alarm device for dish washing machine and dish washing machine |
| CN106137082A (en) * | 2015-04-24 | 2016-11-23 | 青岛海尔洗碗机有限公司 | High water-level alarm device and dish-washing machine for dish-washing machine |
| CN105547406A (en) * | 2015-12-09 | 2016-05-04 | 中广核工程有限公司 | Measuring system and measuring method for water level of nuclear power plant steam generator |
| CN105424141A (en) * | 2015-12-25 | 2016-03-23 | 蚌埠玻璃工业设计研究院 | Waste heat power generation boiler water level monitoring device |
| CN107525561A (en) * | 2016-06-22 | 2017-12-29 | 山东省冶金设计院股份有限公司 | A kind of steam boiler liquid level of steam drum detecting system |
| CN106940215A (en) * | 2017-02-07 | 2017-07-11 | 沈阳华控科技发展有限公司 | A kind of built-in steam drum liquid level measurement device of intelligent compensation |
| CN106940215B (en) * | 2017-02-07 | 2023-05-16 | 沈阳华控科技发展有限公司 | Intelligent compensation built-in drum liquid level measuring device |
| CN109387258A (en) * | 2018-11-23 | 2019-02-26 | 中国二十二冶集团有限公司 | Heat exchanger condensed water liquid level control system and method are measured or controlled using differential pressure transmitter |
| CN109387258B (en) * | 2018-11-23 | 2024-01-23 | 中国二十二冶集团有限公司 | System and method for measuring or controlling condensed water level of heat exchanger by utilizing differential pressure transmitter |
| CN110779075B (en) * | 2019-09-18 | 2021-09-07 | 新疆昌吉特变能源有限责任公司 | A feedforward control method for water level of a heating network heater |
| CN110779075A (en) * | 2019-09-18 | 2020-02-11 | 新疆昌吉特变能源有限责任公司 | Water level feedforward control method for heat supply network heater |
| CN111397688A (en) * | 2020-04-02 | 2020-07-10 | 唐山市丰润区展望自动化设备有限公司 | Liquid level measuring device for double-chamber balance container |
| CN111397688B (en) * | 2020-04-02 | 2021-09-28 | 唐山市丰润区展望自动化设备有限公司 | Liquid level measuring device for double-chamber balance container |
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| Date | Code | Title | Description |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20181030 |