CN116297060A - Online monitoring and alarming system for dust concentration of coal dust bin - Google Patents
Online monitoring and alarming system for dust concentration of coal dust bin Download PDFInfo
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- 239000000428 dust Substances 0.000 title claims abstract description 450
- 239000002817 coal dust Substances 0.000 title claims abstract description 52
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 239000003245 coal Substances 0.000 claims abstract description 55
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 12
- 239000011159 matrix material Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 claims description 6
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- 238000012545 processing Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an on-line monitoring and alarming system for dust concentration of a coal dust bin, which comprises the following components: the data acquisition module is used for detecting the dust concentration in the coal dust bin; the control center receives the data information acquired by the data acquisition module, compares the acquired data with preset threshold data, generates corresponding alarm information, and performs dust fall operation on the coal dust bin according to the alarm information; the alarm module is used for receiving alarm information generated by the control center and carrying out corresponding alarm according to the alarm information; the dust falling module receives a dust falling instruction of the control center and sprays dust falling in the coal dust bin; the real-time data acquisition is carried out in the pulverized coal bin, the real-time data acquisition is transmitted to the control center for carrying out calculation processing on the acquired data, and corresponding measures are adopted by the alarm module and the dust fall module according to the processed data, so that the occurrence of spontaneous combustion caused by the excessive dust concentration of the pulverized coal bin is effectively prevented, and the operation safety of the pulverized coal bin is improved.
Description
Technical Field
The invention relates to the technical field of dust concentration on-line monitoring, in particular to a dust concentration on-line monitoring alarm system of a coal dust bin.
Background
The coal dust bin is a transfer station for fuel. For a middle-storage type feeding boiler, the boiler is provided with a coal bin and a powder bin, and the control of the powder level of the coal bin is particularly important; in China, raw coal is mainly used as power generation fuel, and most power plant boilers adopt pulverized coal to feed the boilers; the dust concentration is too high in the using process of the coal dust bin to cause the coal dust spontaneous combustion event to happen, and the stable operation of the unit is seriously influenced.
Therefore, how to effectively monitor the pulverized coal concentration in the pulverized coal bin is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides an on-line monitoring and alarming system for the dust concentration of the coal dust bin, which is used for effectively monitoring the coal dust concentration in the coal dust bin, and sending alarm information when the coal dust concentration exceeds a set threshold value, and carrying out emergency dust fall treatment.
In order to achieve the above purpose, the present invention provides the following technical solutions:
preferably, in the above-mentioned on-line monitoring alarm system for dust concentration in coal dust bin, the system comprises:
the data acquisition module is provided with a plurality of sensors for detecting the dust concentration in the coal dust bin;
the control center receives the data information acquired by the data acquisition module, compares the acquired data with preset threshold data to generate corresponding alarm information, and performs dust fall operation on the coal dust bin according to the alarm information;
the alarm module is used for receiving the alarm information generated by the control center and carrying out corresponding alarm according to the alarm information;
and the dust falling module receives the dust falling instruction of the control center, sprays dust falling in the pulverized coal bin and prevents dust spontaneous combustion.
Preferably, the data acquisition module includes:
the dust detectors are arranged in the pulverized coal bin and connected with the control center, and are used for detecting dust concentration of each detection point in the pulverized coal bin in real time;
the temperature sensor is arranged in the pulverized coal bin and connected with the control center, and detects temperature data in the pulverized coal bin in real time.
Preferably, the control center includes:
a storage unit for storing data information of the dust detectors and the temperature sensors, and storing a dust threshold value, an average dust threshold value and a temperature threshold value;
the data comparison unit is used for acquiring data information of all the dust detectors, calculating a dust average value of dust data, comparing the dust average value with the dust average threshold value, and generating corresponding dust alarm information when the dust average value is larger than the dust average threshold value; acquiring data information of the temperature sensor, comparing temperature data with the temperature threshold, and generating temperature alarm information when the temperature data is larger than the temperature threshold;
the dust falling unit is used for dividing the pulverized coal bin into a plurality of dust falling areas, calculating reasonable dust values of all dust detectors in each dust falling area in a period of time after receiving the dust alarm information, comparing the reasonable dust values with the dust threshold value, and determining dust falling time of each dust falling area; and when the temperature alarm information is received, dust fall is carried out in the coal dust bin according to the set time.
Preferably, in the dust settling unit, the calculating a reasonable dust value of all dust detectors in each dust settling area in a period of time, wherein a calculating formula of the reasonable dust value is as follows:
where Va represents a reasonable dust value of the dust detector in a set period of time, n represents the number of times of detection data of the dust detector in the set period of time, vmax represents a maximum value in the detection data in the set period of time, vmin represents a minimum value in the detection data in the set period of time,
indicating a reasonable dust value of the dust fall area within a set period of time, m indicating the number of said dust detectors in the dust fall area.
Preferably, the alarm module includes:
the audible and visual alarm is connected with the control center and alarms through audible and visual after receiving the alarm information;
preferably, the dust fall module includes:
and the spraying equipment is arranged at the top end of each dust falling area of the pulverized coal bin, and is used for falling dust in the pulverized coal bin according to a dust falling instruction generated by the dust falling unit.
Preferably, an online monitoring alarm system for dust concentration of a coal dust bin further comprises: a terminal module, comprising:
the display unit is used for acquiring and displaying the data information of each dust detector and the data information of the temperature sensor in the storage unit, acquiring and displaying the alarm information and acquiring and displaying the dust settling time of each dust settling area of the coal dust bin;
the three-dimensional construction unit combines the position of each dust detector with the three-dimensional model based on the three-dimensional model of the coal dust bin according to the reasonable dust value Va of each dust detector in the set time to form a dust concentration schematic model, and the dust concentration schematic model is displayed through the display unit.
Preferably, in the data comparing unit, the dust average value is compared with the dust average threshold value, and when the dust average value is greater than the dust average threshold value, corresponding dust alarm information is generated, including:
the data comparison unit is used for comparing the dust average value A with the dust average threshold value, presetting a dust average threshold value matrix A0, and setting A0 (A1, A2, A3 and A4), wherein A1 is a first preset dust average threshold value, A2 is a second preset dust average threshold value, A3 is a third preset dust average threshold value, A4 is a fourth preset dust average threshold value, and A1 is more than A2 and less than A3 and less than A4;
the data comparison unit is used for generating the dust alarm information B, presetting a dust alarm information matrix B0, and setting B0 (B1, B2, B3 and B4), wherein B1 is first preset dust alarm information, B2 is second preset dust alarm information, B3 is third preset dust alarm information, B4 is fourth preset dust alarm information, and B1 is smaller than B2 and smaller than B3 and smaller than B4 according to importance degree;
the data comparison unit determines the dust alarm information B according to the comparison result of the dust average value A and the dust average threshold value:
when A is less than A1, the dust in the coal dust bin is at a normal level;
when A1 is less than or equal to A2, selecting the first preset dust alarm information B1 as the dust alarm information;
when A2 is less than or equal to A3, selecting the second preset dust alarm information B2 as the dust alarm information;
when A3 is less than or equal to A4, selecting the third preset dust alarm information B3 as the dust alarm information;
and when A4 is less than or equal to A, selecting the fourth preset dust alarm information B4 as the dust alarm information.
Preferably, in the dust settling unit, comparing the reasonable dust value with the dust threshold value, determining dust settling time of each dust settling area includes:
the dust fall unit is used for comparing the reasonable dust value C with the dust threshold value, presetting a dust threshold value matrix C0, and setting C0 (C1, C2, C3 and C4), wherein C1 is a first preset dust threshold value, C2 is a second preset dust threshold value, C3 is a third preset dust threshold value, C4 is a fourth preset dust threshold value, and C1 is more than C2 and less than C3 and less than C4;
the dust settling unit is used for determining dust settling time D of each dust settling area, presetting a dust settling time matrix D0, and setting D0 (D1, D2, D3 and D4), wherein D1 is first preset dust settling time, D2 is second preset dust settling time, D3 is third preset dust settling time, D4 is fourth preset dust settling time, and D1 is less than D2 and less than D3 is less than D4 according to time length;
the dust settling unit determines dust settling time D of each dust settling area according to the comparison result of the reasonable dust value C and the dust threshold value of each dust settling area:
when C1 is less than or equal to C2, selecting the first preset dust fall time D1 as the dust fall time of the current dust fall area;
when C2 is less than or equal to C3, selecting the second preset dust fall time D2 as the dust fall time of the current dust fall area;
when C3 is less than or equal to C4, selecting the third preset dust fall time D3 as the dust fall time of the current dust fall area;
and when C4 is less than or equal to C, selecting the fourth preset dust fall time D4 as the dust fall time of the current dust fall area.
Compared with the prior art, the invention has the beneficial effects that:
1. the data acquisition module is used for acquiring real-time data in the pulverized coal bin, the data are transmitted to the control center for calculating and processing the acquired data, and the alarm module and the dust fall module are controlled to take corresponding measures according to the processed data, so that the condition that spontaneous combustion is caused by the excessive dust concentration of the pulverized coal bin is effectively prevented;
2. the pulverized coal bin is divided into a plurality of dust falling areas through the dust falling unit, and the dust falling in the areas is carried out according to the dust concentration in the areas, so that the utilization rate of dust falling spraying is improved, and the condition that pulverized coal combustion is influenced by spraying is reduced.
3. The terminal module is arranged to enable each data in the coal powder bin to be displayed in a centralized mode, so that the management force of the coal powder bin is improved, the specific situation of the coal powder bin can be better known, the handling is fast carried out when an accident occurs, and the safety of the coal powder bin is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of a control center according to the present invention.
Fig. 3 is a schematic structural diagram of a terminal module according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the embodiment of the invention discloses an on-line monitoring and alarming system for dust concentration of a coal dust bin, which comprises the following components:
the data acquisition module is provided with a plurality of sensors for detecting the dust concentration in the coal dust bin;
the control center receives the data information acquired by the data acquisition module, compares the acquired data with preset threshold data, generates corresponding alarm information, and performs dust fall operation on the coal dust bin according to the alarm information;
the alarm module is used for receiving alarm information generated by the control center and carrying out corresponding alarm according to the alarm information;
and the dust falling module receives a dust falling instruction of the control center, sprays dust falling in the pulverized coal bin and prevents dust from spontaneous combustion.
The beneficial effects of the embodiment are as follows: the data acquisition module is used for acquiring real-time data in the pulverized coal bin, the real-time data are transmitted to the control center for calculating and processing the acquired data, and the alarm module and the dust fall module are controlled according to the processed data to take corresponding measures, so that the occurrence of spontaneous combustion caused by the excessive dust concentration of the pulverized coal bin is effectively prevented, and the operation safety of the pulverized coal bin is improved.
In one embodiment, a data acquisition module includes:
the dust detectors are arranged in the coal dust bin and connected with the control center, and are used for detecting dust concentration of each detection point in the coal dust bin in real time;
the temperature sensor is arranged in the pulverized coal bin and connected with the control center, and detects temperature data in the pulverized coal bin in real time.
Wherein, dust detector and temperature sensor are prior art.
As shown in fig. 2, in one embodiment, the control center includes:
a storage unit for storing data information of the dust detectors and the temperature sensors and storing a dust threshold value, an average dust threshold value and a temperature threshold value;
the data comparison unit is used for acquiring data information of all the dust detectors, calculating a dust average value of dust data, comparing the dust average value with a dust average threshold value, and generating corresponding dust alarm information when the dust average value is larger than the dust average threshold value; acquiring data information of a temperature sensor, comparing temperature data with a temperature threshold value, and generating temperature alarm information when the temperature data is greater than the temperature threshold value;
the dust settling unit is used for dividing the coal dust bin into a plurality of dust settling areas, calculating reasonable dust values of all dust detectors in each dust settling area in a period of time after dust alarm information is received, comparing the reasonable dust values with dust threshold values, and determining dust settling time of each dust settling area; and when the temperature alarm information is received, dust falling is carried out in the coal dust bin according to the set time.
In addition, in the mode of spraying powder for combustion of the boiler and atomizing dust for dust falling by using water, in order to avoid adverse effect of excessive dust falling on the combustion of pulverized coal, the pulverized coal bin is subjected to dust falling treatment in different areas; in the practical application process, the pulverized coal bin is divided into 2, 3 or 4 dust falling areas reasonably, dust falling time is calculated according to dust concentration of different dust falling areas, the utilization rate of spraying dust falling is effectively improved, and the influence of spraying on pulverized coal combustion is reduced.
In the dust falling unit, calculating reasonable dust values of all dust detectors in each dust falling area in a period of time, wherein a calculation formula of the reasonable dust values is as follows:
where Va represents a reasonable dust value of the dust detector in a set period of time, n represents the number of times of detection data of the dust detector in the set period of time, vmax represents a maximum value in the detection data in the set period of time, vmin represents a minimum value in the detection data in the set period of time,
indicating a reasonable dust value of the dust fall area in the set time period, and m indicating the number of dust detectors in the dust fall area.
It should be noted that, the dust settling device is generally disposed at the upper end of the area where dust is to be settled, and dust is settled in the whole area from top to bottom, and dust concentrations at various heights in the whole area are different, so that the average value in the whole area is taken to ensure the validity of dust settling; and subtracting the maximum value and the minimum value in the data set in the calculation process, so as to avoid the influence of extreme data on the stability of calculation.
The beneficial effects of the embodiment are as follows: the pulverized coal bin is divided into a plurality of dust falling areas through the dust falling unit, and the dust falling in the areas is carried out according to the dust concentration in the areas, so that the utilization rate of dust falling spraying is improved, and the condition that pulverized coal combustion is influenced by spraying is reduced.
In one embodiment, an alarm module includes:
the audible and visual alarm is connected with the control center and alarms through audible and visual after receiving the alarm information;
in one embodiment, a dust suppression module includes:
the spraying equipment is arranged at the top end of each dust falling area of the coal dust bin, and dust is reduced in the coal dust bin according to a dust falling instruction generated by the dust falling unit.
It should be noted that the spraying apparatus is set according to the dust detector, for example: the interior 8 dust detector that are the cuboid that are of buggy storehouse to divide into two dust fall regions with the middle division can divide into the buggy storehouse, dust fall equipment sets up directly over two dust fall regions, ensures the validity of dust fall.
In one embodiment, an online monitoring and alarming system for dust concentration of a coal dust bin further comprises: a terminal module, comprising:
the display unit is used for acquiring and displaying the data information of each dust detector and the data information of the temperature sensor in the storage unit, acquiring and displaying alarm information and acquiring and displaying dust settling time of each dust settling area of the coal dust bin;
the three-dimensional construction unit combines the position of each dust detector with the three-dimensional model based on the three-dimensional model of the pulverized coal bin according to the reasonable dust value Va of each dust detector in the set time to form a dust concentration schematic model, and the dust concentration schematic model is displayed through the display unit.
The terminal module can be one or more of a mobile phone, a desktop computer and a notebook computer; the display unit is a display screen; the three-dimensional model of the pulverized coal bin is created for three-dimensional software, and after each dust detector is combined, a simple three-dimensional diagram simulating the internal condition of the pulverized coal bin is formed. And obtaining reasonable dust values of the dust detector every time the time is set, and displaying a dust distribution schematic diagram in the coal dust bin in a three-dimensional diagram. The three-dimensional map update time is set by the staff.
The beneficial effects of the embodiment are as follows: the terminal module is arranged to enable each data in the coal powder bin to be displayed in a centralized mode, so that the management force of the coal powder bin is improved, the specific situation of the coal powder bin can be better known, the handling is fast carried out when an accident occurs, and the safety of the coal powder bin is improved.
In one embodiment, in the data comparison unit, comparing the dust average value with a dust average threshold value, when the dust average value is greater than the dust average threshold value, generating corresponding dust alarm information, including:
the data comparison unit is used for comparing the dust average value A with a dust average threshold value, presetting a dust average threshold value matrix A0, and setting A0 (A1, A2, A3 and A4), wherein A1 is a first preset dust average threshold value, A2 is a second preset dust average threshold value, A3 is a third preset dust average threshold value, A4 is a fourth preset dust average threshold value, and A1 is more than A2 and less than A3 and less than A4;
the data comparison unit is used for generating dust alarm information B, presetting a dust alarm information matrix B0 and setting B0 (B1, B2, B3 and B4), wherein B1 is first preset dust alarm information, B2 is second preset dust alarm information, B3 is third preset dust alarm information, B4 is fourth preset dust alarm information, and B1 is more than 2 and less than 3 and less than 4 according to importance degree;
the data comparison unit determines dust alarm information B according to the comparison result of the dust average value A and the dust average threshold value:
when A is less than A1, the dust in the coal dust bin is at a normal level;
when A1 is less than or equal to A2, selecting first preset dust alarm information B1 as dust alarm information;
when A2 is less than or equal to A3, selecting second preset dust alarm information B2 as dust alarm information;
when A3 is less than or equal to A4, selecting third preset dust alarm information B3 as dust alarm information;
when A4 is less than or equal to A, fourth preset dust alarm information B4 is selected as dust alarm information.
It should be noted that, the dust in the coal dust bin is in a floating state, the numerical value after the dust detector detects and calculates is a reference data value, different dust values are classified into different grades, the alarm is given to the staff, the staff carries out early warning maintenance and emergency treatment after the alarm on the coal dust bin through the alarm information, and the stability of the coal dust bin is improved and the occurrence of dust spontaneous combustion is reduced through the multistage monitoring of the dust change in the coal dust bin.
In the dust fall unit, compare reasonable dust value with the dust threshold value, confirm the dust fall time of every dust fall region, include:
the dust fall unit is used for comparing a reasonable dust value C with a dust threshold value, presetting a dust threshold value matrix C0, and setting C0 (C1, C2, C3 and C4), wherein C1 is a first preset dust threshold value, C2 is a second preset dust threshold value, C3 is a third preset dust threshold value, C4 is a fourth preset dust threshold value, and C1 is more than C2 and less than C3 and less than C4;
the dust settling unit is used for determining dust settling time D of each dust settling area, presetting a dust settling time matrix D0 and setting D0 (D1, D2, D3 and D4), wherein D1 is first preset dust settling time, D2 is second preset dust settling time, D3 is third preset dust settling time, D4 is fourth preset dust settling time, and D1 is less than D2 and less than D3 is less than D4 according to time length;
the dust settling unit determines dust settling time D of each dust settling area according to the comparison result of the reasonable dust value C and the dust threshold value of each dust settling area:
when C1 is less than or equal to C2, selecting a first preset dust fall time D1 as the dust fall time of the current dust fall area;
when C2 is less than or equal to C3, selecting a second preset dust fall time D2 as the dust fall time of the current dust fall area;
when C3 is less than or equal to C4, selecting a third preset dust fall time D3 as the dust fall time of the current dust fall area;
and when C4 is less than or equal to C, selecting a fourth preset dust fall time D4 as the dust fall time of the current dust fall area.
In order to avoid the influence of excessive spray dust fall on pulverized coal combustion in the practical application process, the dust fall time is determined according to the reasonable dust value of the dust fall area, so that the dust fall efficiency is effectively improved, and the influence of dust fall on pulverized coal combustion is reduced.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a buggy storehouse dust concentration on-line monitoring alarm system which characterized in that includes:
the data acquisition module is provided with a plurality of sensors for detecting the dust concentration in the coal dust bin;
the control center receives the data information acquired by the data acquisition module, compares the acquired data with preset threshold data to generate corresponding alarm information, and performs dust fall operation on the coal dust bin according to the alarm information;
the alarm module is used for receiving the alarm information generated by the control center and carrying out corresponding alarm according to the alarm information;
and the dust falling module receives the dust falling instruction of the control center, sprays dust falling in the pulverized coal bin and prevents dust spontaneous combustion.
2. The on-line monitoring and alarming system for dust concentration of coal dust bin according to claim 1, wherein the data acquisition module comprises:
the dust detectors are arranged in the pulverized coal bin and connected with the control center, and are used for detecting dust concentration of each detection point in the pulverized coal bin in real time;
the temperature sensor is arranged in the pulverized coal bin and connected with the control center, and detects temperature data in the pulverized coal bin in real time.
3. The on-line monitoring and alarming system for dust concentration of coal dust bin according to claim 2, wherein the control center comprises:
a storage unit for storing data information of the dust detectors and the temperature sensors, and storing a dust threshold value, an average dust threshold value and a temperature threshold value;
the data comparison unit is used for acquiring data information of all the dust detectors, calculating a dust average value of dust data, comparing the dust average value with the dust average threshold value, and generating corresponding dust alarm information when the dust average value is larger than the dust average threshold value; acquiring data information of the temperature sensor, comparing temperature data with the temperature threshold, and generating temperature alarm information when the temperature data is larger than the temperature threshold;
the dust falling unit is used for dividing the pulverized coal bin into a plurality of dust falling areas, calculating reasonable dust values of all dust detectors in each dust falling area in a period of time after receiving the dust alarm information, comparing the reasonable dust values with the dust threshold value, and determining dust falling time of each dust falling area; and when the temperature alarm information is received, dust fall is carried out in the coal dust bin according to the set time.
4. The on-line monitoring and alarming system for dust concentration of coal dust bin according to claim 3, wherein in the dust settling unit, the reasonable dust values of all dust detectors in each dust settling area in a period of time are calculated, and a calculation formula of the reasonable dust values is as follows:
where Va represents a reasonable dust value of the dust detector in a set period of time, n represents the number of times of detection data of the dust detector in the set period of time, vmax represents a maximum value in the detection data in the set period of time, vmin represents a minimum value in the detection data in the set period of time,
indicating a reasonable dust value of the dust fall area within a set period of time, m indicating the number of said dust detectors in the dust fall area.
5. A pulverized coal bunker dust concentration on-line monitoring and warning system according to claim 3, characterized in that the warning module comprises:
and the audible and visual alarm is connected with the control center and alarms through audible and visual after receiving the alarm information.
6. The on-line monitoring and alarming system for dust concentration of coal dust bin of claim 5, wherein the dust settling module comprises:
and the spraying equipment is arranged at the top end of each dust falling area of the pulverized coal bin, and is used for falling dust in the pulverized coal bin according to a dust falling instruction generated by the dust falling unit.
7. The on-line monitoring and alarming system for dust concentration of coal dust bin according to claim 3, further comprising: a terminal module, comprising:
the display unit is used for acquiring and displaying the data information of each dust detector and the data information of the temperature sensor in the storage unit, acquiring and displaying the alarm information and acquiring and displaying the dust settling time of each dust settling area of the coal dust bin;
the three-dimensional construction unit combines the position of each dust detector with the three-dimensional model based on the three-dimensional model of the coal dust bin according to the reasonable dust value Va of each dust detector in the set time to form a dust concentration schematic model, and the dust concentration schematic model is displayed through the display unit.
8. The on-line monitoring and alarming system for dust concentration in a coal dust bin according to claim 3, wherein in the data comparing unit, the average value of dust is compared with the average dust threshold value, and when the average value of dust is greater than the average dust threshold value, corresponding dust alarm information is generated, including:
the data comparison unit is used for comparing the dust average value A with the dust average threshold value, presetting a dust average threshold value matrix A0, and setting A0 (A1, A2, A3 and A4), wherein A1 is a first preset dust average threshold value, A2 is a second preset dust average threshold value, A3 is a third preset dust average threshold value, A4 is a fourth preset dust average threshold value, and A1 is more than A2 and less than A3 and less than A4;
the data comparison unit is used for generating the dust alarm information B, presetting a dust alarm information matrix B0, and setting B0 (B1, B2, B3 and B4), wherein B1 is first preset dust alarm information, B2 is second preset dust alarm information, B3 is third preset dust alarm information, B4 is fourth preset dust alarm information, and B1 is smaller than B2 and smaller than B3 and smaller than B4 according to importance degree;
the data comparison unit determines the dust alarm information B according to the comparison result of the dust average value A and the dust average threshold value:
when A is less than A1, the dust in the coal dust bin is at a normal level;
when A1 is less than or equal to A2, selecting the first preset dust alarm information B1 as the dust alarm information;
when A2 is less than or equal to A3, selecting the second preset dust alarm information B2 as the dust alarm information;
when A3 is less than or equal to A4, selecting the third preset dust alarm information B3 as the dust alarm information;
and when A4 is less than or equal to A, selecting the fourth preset dust alarm information B4 as the dust alarm information.
9. The on-line monitoring and alarming system for dust concentration in a coal dust bin of claim 3, wherein comparing the reasonable dust value with the dust threshold in the dust settling unit, determining dust settling time of each dust settling area comprises:
the dust fall unit is used for comparing the reasonable dust value C with the dust threshold value, presetting a dust threshold value matrix C0, and setting C0 (C1, C2, C3 and C4), wherein C1 is a first preset dust threshold value, C2 is a second preset dust threshold value, C3 is a third preset dust threshold value, C4 is a fourth preset dust threshold value, and C1 is more than C2 and less than C3 and less than C4;
the dust settling unit is used for determining dust settling time D of each dust settling area, presetting a dust settling time matrix D0, and setting D0 (D1, D2, D3 and D4), wherein D1 is first preset dust settling time, D2 is second preset dust settling time, D3 is third preset dust settling time, D4 is fourth preset dust settling time, and D1 is less than D2 and less than D3 is less than D4 according to time length;
the dust settling unit determines dust settling time D of each dust settling area according to the comparison result of the reasonable dust value C and the dust threshold value of each dust settling area:
when C1 is less than or equal to C2, selecting the first preset dust fall time D1 as the dust fall time of the current dust fall area;
when C2 is less than or equal to C3, selecting the second preset dust fall time D2 as the dust fall time of the current dust fall area;
when C3 is less than or equal to C4, selecting the third preset dust fall time D3 as the dust fall time of the current dust fall area;
and when C4 is less than or equal to C, selecting the fourth preset dust fall time D4 as the dust fall time of the current dust fall area.
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| CN117886145A (en) * | 2024-03-14 | 2024-04-16 | 纳路（厦门）环保科技有限公司 | Intelligent feeding system for on-line monitoring and controlling powder feeding amount based on dust concentration |
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| CN117886145A (en) * | 2024-03-14 | 2024-04-16 | 纳路（厦门）环保科技有限公司 | Intelligent feeding system for on-line monitoring and controlling powder feeding amount based on dust concentration |
| CN117886145B (en) * | 2024-03-14 | 2024-06-11 | 纳路（厦门）环保科技有限公司 | Intelligent feeding system for on-line monitoring and controlling powder feeding amount based on dust concentration |
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