CN204535813U - A kind of Novel powder level detecting apparatus - Google Patents
A kind of Novel powder level detecting apparatus Download PDFInfo
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- CN204535813U CN204535813U CN201420795918.5U CN201420795918U CN204535813U CN 204535813 U CN204535813 U CN 204535813U CN 201420795918 U CN201420795918 U CN 201420795918U CN 204535813 U CN204535813 U CN 204535813U
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Abstract
The utility model relates to a kind of Novel powder level detecting apparatus, comprises coal bunker, arranges pressure acquisition plate in described coal bunker inner chamber with coal dust region at this coal dust sections bottom; This pressure acquisition plate connects the pulley directly over coal bunker by wire rope and the wire rope outer end laid out by pulley connects pulling force sensor, and described pulling force sensor connects with outside host computer.The utility model beneficial effect is: by the innovation of heat power plant boiler powder level in coal powder banker signal acquisition method, make powder storehouse powder position signals collecting simple, reliable, eliminate harvester in the past complicated, be subject to environmental interference, installation cost degradation defect; Utilize pressure acquisition plate, gather coal dust pressure, and then find out the relation with pressure from coal dust height, host computer carries out analytic operation to image data, draws powder position height accurately.
Description
Technical field
The utility model relates to power domain, particularly relates to a kind of Novel powder level detecting apparatus.
Background technology
Powder level detecting apparatus can be applicable to power industry, is conducive to operations staff and grasps important parameter at any time and control running Main Basis.In thermal power plant's modernization construction process, the monitoring means of various advanced person emerge in an endless stream, but Pulverized Coal Bin monitoring material position because of powder storehouse work condition environment severe, the general still original operating type adopting hand boom more, the factor impacts such as the high temperature in powder storehouse, high humidity, electrostatic, coal varitation, dust from flying, the powder level measurer that more rare energy long time stability runs.
Thus, based on to thermal power plant's Pulverized Coal Bin research, reach steady in a long-term and run object.In like product as: ultrasonic type, laser type, radar type and condenser type etc., their common feature utilizes sound wave, light wave, electromagnetic transmitting and receiving, measures powder position according to the specific inductive capacity in different media.But because powder storehouse environment is severe, dust waves, temperature is high, coal is changeable, the change of coal dust absorption coefficient differs, explosion-proof, anticorrosion requires high, in addition these methods medium and small signal transmission difficulty, not easily calibrate, electromagnetic interference (EMI) is large etc., cause these apparatus measures errors larger, failure rate is higher, and life cycle is short.Meanwhile, the many complex structures of mechanical powder position detector, Measuring Time are long, easily mechanical fault occur.Therefore, for above aspect, need reasonably to improve prior art.
Utility model content
For above defect, the utility model provides that a kind of Installation and Debugging are simple, the electric components not setting in storehouse that is subject to environmental interference, stable work in work, maintenance workload are little, the Novel powder level detecting apparatus of failure rate is low, to solve many deficiencies of prior art.
For achieving the above object, the utility model is by the following technical solutions:
A kind of Novel powder level detecting apparatus, comprise coal bunker, arranges pressure acquisition plate in described coal bunker inner chamber with coal dust region at this coal dust sections bottom; This pressure acquisition plate connects the pulley directly over coal bunker by wire rope and the wire rope outer end laid out by pulley connects pulling force sensor.
Correspondingly, described pulling force sensor connects with outside host computer;
When described coal bunker powder position declines, the coal dust entirety of coal bunker moves down, to Cang Di mineralization pressure district.
The beneficial effect of Novel powder level detecting apparatus described in the utility model is: by innovating heat power plant boiler powder level in coal powder banker signal acquisition method, make powder storehouse powder position signals collecting simple, reliable, eliminate harvester in the past complicated, be subject to environmental interference, installation cost degradation defect; Utilize pressure acquisition plate, gather coal dust pressure, and then find out the relation with pressure from coal dust height, host computer carries out analytic operation to image data, draws powder position height accurately.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structural representation of Novel powder level detecting apparatus described in the utility model embodiment.
In figure:
1, coal bunker; 2, coal dust region; 3, pressure acquisition plate; 4, wire rope; 5, pulley; 6, pulling force sensor; 7, host computer.
Embodiment
As shown in Figure 1, Novel powder level detecting apparatus described in the utility model embodiment, comprise coal bunker 1, with coal dust region 2, pressure acquisition plate 3 is set bottom this coal dust region 2 in described coal bunker 1 inner chamber, this pressure acquisition plate 3 connects the pulley 5 directly over coal bunker 1 by wire rope 4 and wire rope 4 outer end laid out by pulley 5 connects pulling force sensor 6, and this pulling force sensor 6 connects with outside host computer 7;
Novel powder level detecting apparatus described in above the utility model embodiment, utilize the specific physical character of coal dust, when coal bunker 1 powder position declines, the coal dust entirety of coal bunker 1 moves down, certain pressure is had at the bottom of storehouse, and highly there is certain relation the size of pressure and coal dust position, that is: pressure changes with powder position height change, and linear relationship is basicly stable; Utilize this feature, bottom coal dust region 2, establish collection plate 3 by stay cord, pressure is passed to pulling force sensor 6, after host computer 7 pairs of pulling force sensor 6 data analysis, show powder position signal at configuration figure;
The data analysis carried out is according to as follows:
Powder position height (H)=sensor pulling force (L) × constant (k);
K value wherein needs to correct when first installation, point three powder bit checks, after buying securities with all one's capital namely, in middle powder position, zero powder position, input host computer relevant parameters, computational constant (k) value, different coals, the real density of its coal dust is different, its constant (k) value is different, but error is in specialized range, if will precision be improved, need according to coal, arrange constant (k) at host computer, constant (k) value has debugged out to obtain reference value according to Coal rank in advance.
The above-mentioned description to embodiment can understand and apply this case technology for the ease of those skilled in the art, person skilled in the art obviously can make various amendment to these examples easily, and General Principle described herein is applied in other embodiment and need not through performing creative labour.Therefore, this case is not limited to above embodiment, and those skilled in the art is according to the announcement of this case, and the improvement made for this case and amendment all should in the protection domains of this case.
Claims (3)
1. a Novel powder level detecting apparatus, comprises coal bunker (1), it is characterized in that:
With coal dust region (2) pressure acquisition plate (3) is set in bottom, this coal dust region (2) in described coal bunker (1) inner chamber; This pressure acquisition plate (3) connects the pulley (5) directly over coal bunker (1) by wire rope (4) and wire rope (4) outer end laid out by pulley (5) connects pulling force sensor (6).
2. Novel powder level detecting apparatus according to claim 1, is characterized in that: described pulling force sensor (6) connects with outside host computer (7).
3. Novel powder level detecting apparatus according to claim 1, is characterized in that: when described coal bunker (1) powder position declines, the coal dust entirety of coal bunker (1) moves down, to Cang Di mineralization pressure district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795918.5U CN204535813U (en) | 2014-12-17 | 2014-12-17 | A kind of Novel powder level detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795918.5U CN204535813U (en) | 2014-12-17 | 2014-12-17 | A kind of Novel powder level detecting apparatus |
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| Publication Number | Publication Date |
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| CN204535813U true CN204535813U (en) | 2015-08-05 |
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| CN201420795918.5U Active CN204535813U (en) | 2014-12-17 | 2014-12-17 | A kind of Novel powder level detecting apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686409A (en) * | 2021-08-17 | 2021-11-23 | 国网天津市电力公司电力科学研究院 | Coal-fired power plant coal bunker powder level detection device and method thereof |
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2014
- 2014-12-17 CN CN201420795918.5U patent/CN204535813U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686409A (en) * | 2021-08-17 | 2021-11-23 | 国网天津市电力公司电力科学研究院 | Coal-fired power plant coal bunker powder level detection device and method thereof |
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