CN109580263A - The on-line monitoring method of Environmental-protecting dust-removing system running state - Google Patents
The on-line monitoring method of Environmental-protecting dust-removing system running state Download PDFInfo
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- CN109580263A CN109580263A CN201710909900.1A CN201710909900A CN109580263A CN 109580263 A CN109580263 A CN 109580263A CN 201710909900 A CN201710909900 A CN 201710909900A CN 109580263 A CN109580263 A CN 109580263A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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Abstract
The invention discloses a kind of on-line monitoring method of Environmental-protecting dust-removing system running state, this method acquires dust concentration data, the vibration signal of motor and bearing fan and the pressure of pipe-line system and flow parameter of Environmental-protecting dust-removing system outlet and each deduster warehouse；Environmental-protecting dust-removing system outlet and each deduster warehouse emission concentration standard value are set, measured data is alarmed greater than the standard value；The actual pressure for determining pipeline monitoring point is corrected according to the relevant parameter of pipe-line system；The vibration amplitude component of motor and blower is respectively obtained by vibration acceleration sensor output signal, and sets motor and the blower health status factor, and the health status factor, system alarm when the health status factor is less than zero are calculated by vibration amplitude component.This method improves dust removing effects to oscillation real time monitoring, trend management and the fault pre-alarming of Environmental-protecting dust-removing system concentration of emission, pipe-line system state, each deduster warehouse state, motor and blower to guarantee that system operates normally.
Description
Technical field
The present invention relates to a kind of on-line monitoring methods of Environmental-protecting dust-removing system running state.
Background technique
Environmental-protecting dust-removing system is widely used in a variety of occasions, including all kinds of production scenes, particularly with smelter dust
Improvement, can carry out all or part cleaning, avoid the secondary pollution of dust bring and noise pollution, it is most clean to ensure
Production and living environment.
But main problem existing for existing Environmental-protecting dust-removing system is as follows:
1) live cleaner has a very wide distribution, and management service is inconvenient, relies primarily on the inspection of manual type point, the equipment state palm
It controls accuracy and validity is not high；
2) some key parameters still take the mode acquired offline, cannot continuously detect the emission behaviour of dust pelletizing system,
There are certain hysteresis qualitys for the data that monitoring obtains, can not instruct the maintenance of cleaner in time；
3) monitoring of information dispersion, equipment operation, equipment state and process conditions is mutually indepedent, can not evaluation process, behaviour
Make the influence degree to equipment state；The operating status and dust pelletizing system technological parameter and dust pelletizing system environmental emission of equipment are believed
Breath is mutually indepedent, cannot accomplish to optimize；
4) dust pelletizing system exist with production run parameter, dust characteristic non-matching phenomenon, do not cause dust pelletizing system air quantity not
Match, and then leads to energy loss or environmental pollution.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of on-line monitoring method of Environmental-protecting dust-removing system running state,
This method to the vibration of Environmental-protecting dust-removing system concentration of emission, pipe-line system state, each deduster warehouse state, motor and blower into
Row real-time monitoring, trend management and fault pre-alarming improve dust removing effects to guarantee the normal operation of system.
In order to solve the above technical problems, the on-line monitoring method of Environmental-protecting dust-removing system running state of the present invention includes following step
It is rapid:
Step 1: dust concentration monitor is respectively set in Environmental-protecting dust-removing system outlet and each deduster warehouse, each motor,
Vibration acceleration sensor is arranged in the bearing block of blower rolling bearing, while acquiring the pressure and flow parameter of pipe-line system；
Step 2: the dust concentration monitor output signal E of acquisition Environmental-protecting dust-removing system outletout, Environmental-protecting dust-removing system is set
Unite emission concentration standard value Es；As outlet dust concentration Eout>EsWhen, on-line monitoring system sends alarm signal；
Step 3: according to the caliber D of the pressure parameter P of pipe-line system and flow parameter Q and pipeline, length L, computer tube
Road monitoring point flow velocity V and straight tube resistance coefficient ξ；
V=Q/2826/D2 (1)
ξ=0.0175 × D-0.21×V-0.075×L (2)
Duct pressure loss is divided into linear loss and local losses, and local resistance is formed by conduit fittings, hinders system with office
Number λ, dynamic pressure are directly proportional, and office's resistance coefficient lambda is obtained according to conduit fittings type, opening size by searching for handbook；
Δ P=Σ λ × L/D × (V2/2g)+ΣξV2/2g (3)
Δ P is duct pressure loss in formula (3), and g is acceleration of gravity；
It is corrected according to formula (3) and determines that the actual pressure of pipeline monitoring point is P- Δ P；
Step 4: acquiring the dust concentration monitor output signal Ei of each deduster warehouse, deduster warehouse dust is set
Concentration standard value Esi, as deduster warehouse dust concentration Ei>ESiWhen, show that the deduster warehouse dust cloth bag is damaged, it is online to supervise
Examining system alarm, and show the damage location of dust cloth bag, the deduster warehouse is deactivated, Environmental-protecting dust-removing system outlet is avoided to discharge
Dust concentration is exceeded；
Step 5: acquiring the vibration signal Yi of each vibration acceleration sensor output respectively, vibration signal Yi is vibrated
Global vibration value G and 1 times of speed-frequency, 2 times of speed-frequencies, the vibration at 3 times of speed-frequencies of motor are extracted in spectrum analysis respectively
Dynamic amplitude components Xi (t), wherein i takes 1,2,3；
The Environmental-protecting dust-removing system motor health status factor is set as Ψm,
Then
Work as ΨmWhen < 0, on-line monitoring system forecasts that motor health status is bad, on-line monitoring system alarm；
Step 6: acquiring the vibration signal Yi of each vibration acceleration sensor output respectively, vibration signal Yi is vibrated
Global vibration value H and 1 times of speed-frequency, 2 times of speed-frequencies, the vibration at 3 times of speed-frequencies of blower are extracted in spectrum analysis respectively
Dynamic amplitude components Zi (t), wherein i takes 1,2,3；
The Environmental-protecting dust-removing system fan health status factor is set as Ψf,
Then
Work as ΨfWhen < 0, on-line monitoring system forecasts that ring blower health status is bad, on-line monitoring system alarm.
Further, the Environmental-protecting dust-removing system emission concentration standard value EsIt is set as 10mg/Nm3, the deduster warehouse powder
Dust concentration standard value Esi is set as 30mg/Nm3。
Further, the conduit fittings includes elbow, threeway and valve.
It is since the on-line monitoring method of Environmental-protecting dust-removing system running state of the present invention uses above-mentioned technical proposal, i.e., our
Method acquires the vibration signal of the dust concentration data of Environmental-protecting dust-removing system outlet and each deduster warehouse, motor and bearing fan
And the pressure and flow parameter of pipe-line system；Set Environmental-protecting dust-removing system outlet and each deduster warehouse emission concentration standard
Value, measured data are alarmed greater than the standard value；According to the pressure of pipe-line system, flow, size and pressure loss parameters revision
Determine the actual pressure of pipeline monitoring point；The vibration width of motor and blower is respectively obtained by vibration acceleration sensor output signal
It is worth component, and sets motor and the blower health status factor, the health status factor, health status is calculated by vibration amplitude component
The system alarm when factor is less than zero.This method is to Environmental-protecting dust-removing system concentration of emission, pipe-line system state, each deduster warehouse shape
The vibration of state, motor and blower carries out real-time monitoring, trend management and fault pre-alarming, to guarantee the normal operation of system, improves
Dust removing effects.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
Fig. 1 is the on-line monitoring method flow diagram of Environmental-protecting dust-removing system running state of the present invention.
Specific embodiment
Embodiment is as shown in Figure 1, the on-line monitoring method of Environmental-protecting dust-removing system running state of the present invention includes the following steps:
Step 1: dust concentration monitor is respectively set in Environmental-protecting dust-removing system outlet and each deduster warehouse, each motor,
Vibration acceleration sensor is arranged in the bearing block of blower rolling bearing, while acquiring the pressure and flow parameter of pipe-line system；
Step 2: the dust concentration monitor output signal E of acquisition Environmental-protecting dust-removing system outletout, Environmental-protecting dust-removing system is set
Unite emission concentration standard value Es；As outlet dust concentration Eout>EsWhen, on-line monitoring system sends alarm signal；
Step 3: according to the caliber D of the pressure parameter P of pipe-line system, flow parameter Q and pipeline, length L, computer tube
Road monitoring point flow velocity V and straight tube resistance coefficient ξ；
V=Q/2826/D2 (1)
ξ=0.0175 × D-0.21×V-0.075×L (2)
Duct pressure loss is divided into linear loss and local losses, and local resistance is formed by conduit fittings, hinders system with office
Number λ, dynamic pressure are directly proportional, and office's resistance coefficient lambda is obtained according to conduit fittings type, opening size by searching for handbook；
Δ P=Σ λ × L/D × (V2/2g)+ΣξV2/2g (3)
Δ P is duct pressure loss in formula (3), and g is acceleration of gravity；
It is corrected according to formula (3) and determines that the actual pressure of pipeline monitoring point is P- Δ P；
Step 4: acquiring the dust concentration monitor output signal Ei of each deduster warehouse, deduster warehouse dust is set
Concentration standard value Esi, as deduster warehouse dust concentration Ei>ESiWhen, show that the deduster warehouse dust cloth bag is damaged, it is online to supervise
Examining system alarm, and show the damage location of dust cloth bag, the deduster warehouse is deactivated, Environmental-protecting dust-removing system outlet is avoided to discharge
Dust concentration is exceeded；
Step 5: acquiring the vibration signal Yi of each vibration acceleration sensor output respectively, vibration signal Yi is vibrated
Global vibration value G and 1 times of speed-frequency, 2 times of speed-frequencies, the vibration at 3 times of speed-frequencies of motor are extracted in spectrum analysis respectively
Dynamic amplitude components Xi (t), wherein i takes 1,2,3；
The Environmental-protecting dust-removing system motor health status factor is set as Ψm,
Then
Work as ΨmWhen < 0, on-line monitoring system forecasts that motor health status is bad, on-line monitoring system alarm；
Step 6: acquiring the vibration signal Yi of each vibration acceleration sensor output respectively, vibration signal Yi is vibrated
Global vibration value H and 1 times of speed-frequency, 2 times of speed-frequencies, the vibration at 3 times of speed-frequencies of blower are extracted in spectrum analysis respectively
Dynamic amplitude components Zi (t), wherein i takes 1,2,3；
The Environmental-protecting dust-removing system fan health status factor is set as Ψf,
Then
Work as ΨfWhen < 0, on-line monitoring system forecasts that ring blower health status is bad, on-line monitoring system alarm.
Preferably, the Environmental-protecting dust-removing system emission concentration standard value EsIt is set as 10mg/Nm3, the deduster warehouse powder
Dust concentration standard value Esi is set as 30mg/Nm3。
Preferably, the conduit fittings includes elbow, threeway and valve.
This method compensates for the deficiency that current Environmental-protecting dust-removing system running state on-line monitoring information can not efficiently use, right
Vibration information carries out signal reconstruction to obtain Environmental-protecting dust-removing system motor, blower characteristic information, using health degree index monitoring ring
Protect the degradation trend of dust pelletizing system state.The dust concentration of Environmental-protecting dust-removing system outlet and each deduster warehouse is supervised simultaneously
It surveys, it is ensured that discharge meets environmental requirement.Wherein, on-line monitoring system is alarmed by indicator light, and red light indicates Environmental-protecting dust-removing
System is operating abnormally, and green light indicates Environmental-protecting dust-removing system normal operation.
This method can instruct equipment management personnel to take counter-measure for system alarm, avoid because of dedusting warehouse dust cloth
Equipment is unplanned caused by outlet dust concentration exceeded, the Environmental-protecting dust-removing system motor of discharge and fan trouble caused by bag is damaged stops
Machine supports the normal operation of environmentally friendly dust pelletizing system equipment.
Claims (3)
1. a kind of on-line monitoring method of Environmental-protecting dust-removing system running state, it is characterised in that this method includes the following steps:
Step 1: dust concentration monitor, each motor, blower is respectively set in Environmental-protecting dust-removing system outlet and each deduster warehouse
Vibration acceleration sensor is arranged in the bearing block of rolling bearing, while acquiring the pressure and flow parameter of pipe-line system；
Step 2: the dust concentration monitor output signal E of acquisition Environmental-protecting dust-removing system outletout, setting Environmental-protecting dust-removing system row
Put concentration standard value Es；As outlet dust concentration Eout>EsWhen, on-line monitoring system sends alarm signal；
Step 3: calculating pipeline prison according to the caliber D of the pressure parameter P of pipe-line system, flow parameter Q and pipeline, length L
Point velocity V and straight tube resistance coefficient ξ；
V=Q/2826/D2 (1)
ξ=0.0175 × D-0.21×V-0.075×L (2)
Duct pressure loss is divided into linear loss and local losses, and local resistance is formed by conduit fittings, with office resistance coefficient lambda,
Dynamic pressure is directly proportional, and office's resistance coefficient lambda is obtained according to conduit fittings type, opening size by searching for handbook；
Δ P=Σ λ × L/D × (V2/2g)+ΣξV2/2g (3)
Δ P is duct pressure loss in formula (3), and g is acceleration of gravity；
It is corrected according to formula (3) and determines that the actual pressure of pipeline monitoring point is P- Δ P；
Step 4: acquiring the dust concentration monitor output signal Ei of each deduster warehouse, deduster warehouse dust concentration is set
Standard value Esi, as deduster warehouse dust concentration Ei>ESiWhen, show that the deduster warehouse dust cloth bag is damaged, on-line monitoring system
System alarm, and show the damage location of dust cloth bag, the deduster warehouse is deactivated, Environmental-protecting dust-removing system outlet is avoided to discharge dust
Concentration over-standard；
Step 5: acquiring the vibration signal Yi of each vibration acceleration sensor output respectively, rumble spectrum is made to vibration signal Yi
The global vibration value G and 1 times of speed-frequency, 2 times of speed-frequencies, the vibration width at 3 times of speed-frequencies of motor are extracted in analysis respectively
It is worth component Xi (t), wherein i takes 1,2,3；
The Environmental-protecting dust-removing system motor health status factor is set as Ψm,
Then
Work as ΨmWhen < 0, on-line monitoring system forecasts that motor health status is bad, on-line monitoring system alarm；
Step 6: acquiring the vibration signal Yi of each vibration acceleration sensor output respectively, rumble spectrum is made to vibration signal Yi
The global vibration value H and 1 times of speed-frequency, 2 times of speed-frequencies, the vibration width at 3 times of speed-frequencies of blower are extracted in analysis respectively
It is worth component Zi (t), wherein i takes 1,2,3；
The Environmental-protecting dust-removing system fan health status factor is set as Ψf,
Then
Work as ΨfWhen < 0, on-line monitoring system forecasts that ring blower health status is bad, on-line monitoring system alarm.
2. the on-line monitoring method of Environmental-protecting dust-removing system running state according to claim 1, it is characterised in that: the ring
Protect dust pelletizing system emission concentration standard value EsIt is set as 10mg/Nm3, the deduster warehouse dust concentration standard value Esi is set as
30mg/Nm3。
3. the on-line monitoring method of Environmental-protecting dust-removing system running state according to claim 1 or 2, it is characterised in that: institute
Stating conduit fittings includes elbow, threeway and valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710909900.1A CN109580263A (en) | 2017-09-29 | 2017-09-29 | The on-line monitoring method of Environmental-protecting dust-removing system running state |
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| CN201710909900.1A CN109580263A (en) | 2017-09-29 | 2017-09-29 | The on-line monitoring method of Environmental-protecting dust-removing system running state |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112926826A (en) * | 2021-01-21 | 2021-06-08 | 中冶建筑研究总院有限公司 | Online evaluation method and system for operation state of flue gas dust removal system of iron and steel enterprise |
| CN117679868A (en) * | 2023-12-08 | 2024-03-12 | 湖州槐坎南方水泥有限公司 | Leakage accurate positioning system and method for bag-type dust collector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112926826A (en) * | 2021-01-21 | 2021-06-08 | 中冶建筑研究总院有限公司 | Online evaluation method and system for operation state of flue gas dust removal system of iron and steel enterprise |
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| CN117679868A (en) * | 2023-12-08 | 2024-03-12 | 湖州槐坎南方水泥有限公司 | Leakage accurate positioning system and method for bag-type dust collector |
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Application publication date: 20190405 |