CN2779352Y - Monitor device for coal powder feed - Google Patents
Monitor device for coal powder feed Download PDFInfo
- Publication number
- CN2779352Y CN2779352Y CN 200520030194 CN200520030194U CN2779352Y CN 2779352 Y CN2779352 Y CN 2779352Y CN 200520030194 CN200520030194 CN 200520030194 CN 200520030194 U CN200520030194 U CN 200520030194U CN 2779352 Y CN2779352 Y CN 2779352Y
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- monitoring
- powder
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- louver grid
- sensor
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Abstract
The utility model relates to a metering monitoring device for coal powder feed. The metering monitoring device is arranged in a lower powder pipe (2) of a combustion boiler of the existing power generating plant. The metering monitoring device comprises a monitoring louver grid (1), a monitoring transmission rod (3) and a sensor (4), wherein the monitoring louver grid is arranged in the lower powder pipe, one end of the monitoring transmission rod is connected with the monitoring louver grid and the other end is connected with the sensor which is arranged outside. The utility model has the advantages of reasonable design and simple structure. Because the monitoring louver grid is arranged in the lower powder pipe, when no coal powder passes through the lower powder pipe, the monitoring louver grid is free from force. When coal powder passes through the lower powder pipe, the coal powder impacts the louver grid (powder is not accumulated), the louver grid receives the gravitational effect, the sensor connected with the louver grid transmits a varied signal about the intensity of bearing force, and the signal is displayed by a meter (an instrument) connected with the sensor for management and judgement. Because the quantity of lower powder of coal powder and the variation of the bearing force of the monitoring louver grid are directly proportional, the quantity of the lower powder is large and the bearing force of the louver grid is correspondingly large. Therefore, through the intensity of the bearing force of the louver grid, the quantity of lower powder of a powder feed machine can be calculated.
Description
Affiliated skill territory
The utility model belongs to the coal dust monitoring technical field, and what relate generally to is a kind of coal dust powder feeding measuring monitoring device.
Background technology
The existing boiler of power plant used coal dust that burns picks up supply by a wind.In this process, monitoring to powder of coal dust is most important, in case the coal dust undersupply occurs or do not have the powdery condition, will cause combustible loss, even the serious consequence of fire extinguishing, causes tremendous loss.Monitoring to coal dust is to monitor judgement by the workload demand amount (motor speed) to a blast at present.Because this monitoring mode is when the powder amount is low, or powder-feeding amount is difficult to judge (even can't judge) during the situation that there was a mechanical failure, and deterministic process needs certain hour, thereby the reliability instability of monitoring performance.
Summary of the invention
The purpose of this utility model promptly produces thus, proposes a kind of coal dust powder feeding measuring monitoring device.This monitoring device is simple in structure, stable and reliable for performance, can accurately judge the following powdery condition and the powder dropping amount size thereof of coal dust.
The utility model realizes that the technical scheme that above-mentioned purpose is taked is: in the following tube cell of existing power plant burning boiler metering monitor is set, this metering monitor comprises monitoring blinds grid, monitoring transmission rod and sensor, monitoring blinds grid are arranged on down in the tube cell, one end of monitoring transmission rod with monitor the blinds grid and be connected, the other end is connected with external sensor.
The utility model is reasonable in design, simple in structure.Because it is in the tube cell monitoring blinds grid to be set down, these monitoring variable blinds grid are when coal dust free passes through, its blinds grid do not stress, when coal dust passes through, coal dust impacts blinds grid (and not can accumulated powder), makes blinds grid gravitate, and the variable signal that the sensor that is connected with the blinds grid is about to stressed size transfers out, and show by the instrument (instrument) that is attached thereto, use for management judgment.Because coal dust powder dropping amount size is varied to direct ratio with the power that monitoring variable blinds grid are subjected to, powder dropping amount is greatly that the blinds grid are stressed also corresponding big, thereby can calculate machine supplying powder powder dropping amount size by its stressed size.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is the diagrammatic sketch of bowing of Fig. 1.
Among the figure, 1, monitoring blinds grid, 2, tube cell down, 3, the monitoring transmission rod, 4, sensor, 5, the monitor shell.
Embodiment
In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:
As Fig. 1 in conjunction with shown in Figure 2, present embodiment is in the following tube cell 2 of power plant burning boiler metering monitor to be set, this metering monitor comprises monitoring blinds grid 1, monitoring transmission rod 3 and sensor 4, monitoring blinds grid 1 are arranged on down in the tube cell 2, the employing ordinary stainless steel plate is made, its blinds grid are opening structure, and opening angle is 30～40 °.One end of monitoring transmission rod 3 is connected with monitoring blinds grid 1 and plays the effect that blinds grid 1 are monitored in support, and the other end is connected with external sensor 4.For further improving the reliability of its monitoring coal dust, present embodiment is arranged on the monitoring blinds grid 1 of metering monitor in the monitor shell 5, and this monitor shell 5 is arranged on down 2 of tube cells, and being about to down, tube cell 2 is divided into two parts up and down.Its diameter is greater than the diameter that descends tube cell 2, and the area of monitoring blinds grid 1 thus is also greater than the diameter that descends tube cell 2.Like this, not only convenient the installation, and during the monitoring coal dust more accurately and reliably.
Present embodiment has coal dust to pass through as long as following tube cell is interior in use, and the blinds grid promptly are subjected to the coal dust action of gravity, and power is passed to sensor by passing the monitoring transmission rod, and sensor is subjected to transmission rod effect, output signal.Because the blinds grid are stressed to be directly proportional with the coal dust size, thereby to export the signal that varies in size by the transmission rod size sensor and can calculate the powder dropping amount size.
Claims (3)
1, a kind of coal dust powder feeding measuring monitoring device, it is characterized in that: in the following tube cell (2) of existing power plant burning boiler, metering monitor is set, this metering monitor comprises monitoring blinds grid (1), monitoring transmission rod (3) and sensor (4), monitoring blinds grid (1) are arranged on down in the tube cell (2), one end of monitoring transmission rod (3) with monitor blinds grid (1) and be connected, the other end is connected with external sensor (4).
2, coal dust powder feeding measuring monitoring device according to claim 1, it is characterized in that: the monitoring blinds grid (1) of described metering monitor are arranged in the monitor shell (5), this monitor shell (5) is arranged on down between tube cell (2), its diameter is greater than the diameter that descends tube cell (2), and the area of monitoring blinds grid (1) is also greater than the diameter that descends tube cell (2).
3, coal dust powder feeding measuring monitoring device according to claim 1 and 2, it is characterized in that: described monitoring blinds grid (1) are opening structure, and its opening angle is 30～40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030194 CN2779352Y (en) | 2005-03-15 | 2005-03-15 | Monitor device for coal powder feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030194 CN2779352Y (en) | 2005-03-15 | 2005-03-15 | Monitor device for coal powder feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779352Y true CN2779352Y (en) | 2006-05-10 |
Family
ID=36753439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030194 Expired - Fee Related CN2779352Y (en) | 2005-03-15 | 2005-03-15 | Monitor device for coal powder feed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779352Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759998A (en) * | 2018-05-07 | 2018-11-06 | 北京华泰美景科技发展有限公司 | A kind of coal-burning power plant's as-fired coal powder measuring equipment |
-
2005
- 2005-03-15 CN CN 200520030194 patent/CN2779352Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108759998A (en) * | 2018-05-07 | 2018-11-06 | 北京华泰美景科技发展有限公司 | A kind of coal-burning power plant's as-fired coal powder measuring equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |