CN104048288A - Boiler with liquid level monitoring function - Google Patents
Boiler with liquid level monitoring function Download PDFInfo
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- CN104048288A CN104048288A CN201410272883.1A CN201410272883A CN104048288A CN 104048288 A CN104048288 A CN 104048288A CN 201410272883 A CN201410272883 A CN 201410272883A CN 104048288 A CN104048288 A CN 104048288A
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- boiler
- liquid level
- level monitoring
- monitoring function
- bell
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Abstract
The invention belongs to the field of electric power and the field of thermal power generation, and particularly relates to a boiler with the liquid level monitoring function. According to the boiler with the liquid level monitoring function, a boiler structure not only meeting the ventilation need but also ensuring that rainwater and other extraneous water can not flow into the boiler is obtained. The boiler comprises a boiler body tank, the tank top of the boiler body tank contracts to form a cylindrical short neck, the top of the short neck is closed by a boiler cover, an installation hole is formed in the boiler cover, an ultrasonic probe of an ultrasonic liquid level detector is installed on the boiler cover through the installation hole, and the short neck is provided with a spiral groove. By the adoption of the technical scheme, the false alarm rate of the ultrasonic liquid level detector is zero, and after the ultrasonic liquid level detector is used for monitoring liquid level of the boiler, compared with the prior art, the liquid level monitoring mode is more accurate and timely.
Description
Technical field
The invention belongs to power domain, particularly belong to thermal power generation field, more specifically relate to have the boiler of level monitoring function.
Background technology
Boiler is a kind of energy conversion, has chemical energy, the electric energy in fuel to the energy of boiler input, and boiler output has steam, high-temperature water or the organic heat carrier of certain heat energy.The original meaning of pot refers to the water container heating on fire, and stove refers to the place of combustion fuel, and boiler comprises pot and stove two large divisions.The hot water producing in boiler or steam can be directly for industrial production and people's lives provide required heat energy, also can be converted to mechanical energy by Steam Power Equipment, or by generator, mechanical energy is converted to electric energy again.Provide the boiler of hot water to be called hot-water boiler, be mainly used in life, in industrial production, also have a small amount of application.The boiler that produces steam is called steam boiler, often referred to as boiler, is used for thermal power station, boats and ships, locomotive and industrial and mining enterprises.
The groundwork principle of boiler is a kind ofly to utilize the waste heat in heat energy or the industrial production discharging after fuel combustion to pass to the water in container, makes water reach the heat power equipment of needed temperature or certain pressure steam.Boiler carries out at " pot " and " stove " two parts simultaneously, and after water enters boiler, in boiler circuit, boiler heating surface, by the heat transmission feedwater absorbing, makes water be heated into hot water or the generating steam of uniform temperature and pressure, is drawn application.In combustion apparatus part, heat is constantly emitted in fuel combustion, and the high-temperature flue gas that burning produces, by hot propagation, transfer heat to boiler heating surface, and self-temperature reduces gradually, is finally discharged by chimney.
In commercial Application, ensure that water level in the boiler has great importance in setting range, can not too lowly cause boiler dry combustion method, can not be too high, cause pot interior water-steam system unbalance.Therefore, obtain accurately, in time water level in the boiler height has great importance in commercial Application.
Ultrasonic liquid leveller adopts up-to-date technology of acoustic wave, has improved greatly the certainty of measurement of instrument, and interference echo is had to the obvious inhibit feature that obtains, and has perfect liquid/thing position observing and controlling function.
But, due to the particularity of boiler water-steam system, after ultrasonic liquid leveller is applied in boiler, often to report by mistake, data reliability is extremely low.
Summary of the invention
The present inventor observes by a large amount of experiments, the major reason of finding the wrong report of generation ultrasonic liquid leveller is that aqueous vapors a large amount of during boiler uses rises, and the probe positions at ultrasonic liquid leveller is condensed, thereby formation condensate water, this condensate water is caught by supersonic liquid level instrument probe, take for water level and arrived probe place, therefore send the rub-out signal that water level overflows.
How to get rid of condensate water to ultrasonic liquid leveller, the particularly impact on supersonic liquid level instrument probe, becomes ultrasonic liquid leveller and is applied in the tackling key problem difficult problem in boiler liquid level monitoring.
The initial imagination of the inventor is to offer some passages in the short neck position of boiler, but in actual motion, applicant finds because boiler is worked under environment in the open, the passage of offering is exposing the interior environment of boiler to the open air, rainwater can flow in boiler from passage, skilled in the art will recognize that boiler is very high for the requirement of water wherein, not only can cause damage to boiler if rainwater infiltrates, serious may also can produce blast.
So the passage on ordinary meaning can not meet needs of the present invention.
Based on this, the inventor has unexpectedly obtained one can meet ventilation needs, ensures again the boiler structure that the secondary waters such as rainwater cannot flow into, thereby ultrasonic liquid leveller is applied in boiler, realizes level monitoring accurately and timely.
The invention discloses a kind of boiler with level monitoring function, described boiler comprises boiler body tank, the tank deck of body tank shrinks and forms cylindric short neck, short neck top is sealed by bell, on described bell, offer installing hole, the ultrasonic probe of ultrasonic liquid leveller by installing hole device on bell, on described bell, be also provided with fixed bar, the free end of described fixed bar is fixed with the flat one's intention as revealed in what one says head of a Duckbill type, the rear end of the flat one's intention as revealed in what one says head of described Duckbill type is connected with tracheae, the tracheae other end is compressed air inlet port and is connected with air compressor, described tracheae is passed by the installing hole on bell.
After compressed air is entered by tracheae, at the flat one's intention as revealed in what one says head of Duckbill type, place forms flat air-flow, the ultrasonic probe of ultrasonic liquid leveller is carried out to air flow propelling movement always, thereby prevents condensate water gathering, has avoided the wrong report situation of ultrasonic wave micrometer instrument.
Meanwhile, owing to not needing to increase the structures such as through hole, boiler entirety still in comparatively sealing state under, so can not cause the secondary waters such as rainwater to enter in boiler.
Further, the width that we disclose the flat one's intention as revealed in what one says head of described Duckbill type is 5mm.Thereby can complete better the needs that blow off to condensate water.
As prioritization scheme further, we also disclose the flat one's intention as revealed in what one says head of described Duckbill type place and have also been provided with fine and closely woven grid.
Further, described grid is 0.1mm х 0.1mm.
Thereby can be by compressed air in the time blowing out, by fine and closely woven grid effect, more even, the impulsive force of ultrasonic probe is reduced to protection ultrasonic probe.
As another optimal way, we also disclose described fixed bar by forming by screwing two fixed knots that mode connects.
Thereby can, according to the effect that screws between two fixed knots, regulate the flat one's intention as revealed in what one says grease head highness of Duckbill type.
Adopt after technical scheme disclosed in this invention, we find that the wrong report of ultrasonic liquid leveller is zero, and ultrasonic liquid leveller are used in after the liquid level monitoring of boiler, compared to the level monitoring mode of boiler in prior art, more accurately, in time.
Brief description of the drawings
Fig. 1 is the boiler schematic diagram with level monitoring function.
Fig. 2 is the boiler top view with level monitoring function.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand following detailed description of the invention and only be not used in and limit the scope of the invention for the present invention is described.
It should be noted that, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in width figure, and word " interior " and " outward " refer to respectively the direction towards or away from specific features geometric center.
Embodiment 1
As shown in Figure 1, described boiler comprises boiler body tank 1, the tank deck of body tank 1 shrinks and forms cylindric short neck 2, short neck 2 tops are sealed by bell 3, on described bell 3, offer installing hole, the ultrasonic probe 41 of ultrasonic liquid leveller by installing hole device on bell 3, on described bell 3, be also provided with fixed bar 5, the free end of described fixed bar 5 is fixed with the flat one's intention as revealed in what one says of a Duckbill type 6, the rear end of the flat one's intention as revealed in what one says of described Duckbill type 6 is connected with tracheae 7, tracheae 7 other ends are compressed air inlet port and are connected with air compressor 8, described tracheae is passed by the installing hole on bell.
When use, compressed air is passed in tracheae 7 by air compressor 8, and constantly blows out from the flat one's intention as revealed in what one says of Duckbill type 6, and fixed bar 5 ensures that the flat one's intention as revealed in what one says of Duckbill type 6 aims at ultrasonic probe 41 places, push by air-flow, ensure that the condensate water at ultrasonic probe 41 places is cleaned in time.
Embodiment 2
On the basis of embodiment 1, we further investigate the width of the flat one's intention as revealed in what one says head of Duckbill type.Certain investigation is here that in the time that its width is narrower, its length is larger on the identical basis of the flat one's intention as revealed in what one says of a Duckbill type sectional area.In theory, in the time that its width is narrower, stream pressure is larger, and just length is longer, should more be conducive to cleaning, but we find, in the time that width is narrower, it purges deleterious, wrong report situation increases.While increasing width gradually, wrong report improving situation, but when wide, due to purging effort reduction, wrong report situation further increases again, therefore 4 ~ 7mm preferably, is wherein particularly preferably 5mm.
Embodiment 3
Consider the uniformity while purging, we further disclose the flat one's intention as revealed in what one says head of Duckbill type place and are also provided with fine and closely woven grid.Thereby can be by each place that is distributed in more balanced purging effort, can avoid unidirectional centrostigma to purge, be both conducive to purge effect, be conducive to again protect ultrasonic probe.
Embodiment 4
On the basis of embodiment 3, further inquire into the pore size of grid, to purge uniformity and to purge effect the setting of weighing grid, preferably 0.1mm х 0.1mm.
Claims (5)
1. there is the boiler of level monitoring function, described boiler comprises boiler body tank, the tank deck of body tank shrinks and forms cylindric short neck, short neck top is sealed by bell, it is characterized in that: on described bell, offer installing hole, the ultrasonic probe of ultrasonic liquid leveller by installing hole device on bell, on described bell, be also provided with fixed bar, the free end of described fixed bar is fixed with the flat one's intention as revealed in what one says head of a Duckbill type, the rear end of the flat one's intention as revealed in what one says head of described Duckbill type is connected with tracheae, the tracheae other end is compressed air inlet port and is connected with air compressor, described tracheae is passed by the installing hole on bell.
2. the boiler with level monitoring function according to claim 1, is characterized in that: the width of the flat one's intention as revealed in what one says head of described Duckbill type is 5mm.
3. the boiler with level monitoring function according to claim 1 and 2, is characterized in that: the flat one's intention as revealed in what one says head of described Duckbill type place is also provided with fine and closely woven grid.
4. the boiler with level monitoring function according to claim 3, is characterized in that: described grid is 0.1mm х 0.1mm.
5. the boiler with level monitoring function according to claim 1, is characterized in that: described fixed bar is by forming by screwing two fixed knots that mode connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272883.1A CN104048288A (en) | 2014-06-19 | 2014-06-19 | Boiler with liquid level monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272883.1A CN104048288A (en) | 2014-06-19 | 2014-06-19 | Boiler with liquid level monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104048288A true CN104048288A (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410272883.1A Pending CN104048288A (en) | 2014-06-19 | 2014-06-19 | Boiler with liquid level monitoring function |
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| Country | Link |
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| CN (1) | CN104048288A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05240681A (en) * | 1992-02-28 | 1993-09-17 | Ngk Insulators Ltd | Ultrasonic level instrument |
| CN201408370Y (en) * | 2009-05-11 | 2010-02-17 | 成都四通科技投资有限公司 | Liquid-level monitoring device for boiler drum |
| CN201795835U (en) * | 2010-09-10 | 2011-04-13 | 宝山钢铁股份有限公司 | Liquid level detection anti-dew deposition device for cooling water tank |
| CN102557310A (en) * | 2010-12-27 | 2012-07-11 | 无锡华润上华科技有限公司 | Water treatment system |
| CN202793527U (en) * | 2012-08-21 | 2013-03-13 | 中冶东方工程技术有限公司上海分公司 | Automatic blowing device for ultrasonic liquid level gauge |
-
2014
- 2014-06-19 CN CN201410272883.1A patent/CN104048288A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05240681A (en) * | 1992-02-28 | 1993-09-17 | Ngk Insulators Ltd | Ultrasonic level instrument |
| CN201408370Y (en) * | 2009-05-11 | 2010-02-17 | 成都四通科技投资有限公司 | Liquid-level monitoring device for boiler drum |
| CN201795835U (en) * | 2010-09-10 | 2011-04-13 | 宝山钢铁股份有限公司 | Liquid level detection anti-dew deposition device for cooling water tank |
| CN102557310A (en) * | 2010-12-27 | 2012-07-11 | 无锡华润上华科技有限公司 | Water treatment system |
| CN202793527U (en) * | 2012-08-21 | 2013-03-13 | 中冶东方工程技术有限公司上海分公司 | Automatic blowing device for ultrasonic liquid level gauge |
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Application publication date: 20140917 |