CN110124403A - Pulse bag type dust collector broken bag intelligent detecting method - Google Patents
Pulse bag type dust collector broken bag intelligent detecting method Download PDFInfo
- Publication number
- CN110124403A CN110124403A CN201910510274.8A CN201910510274A CN110124403A CN 110124403 A CN110124403 A CN 110124403A CN 201910510274 A CN201910510274 A CN 201910510274A CN 110124403 A CN110124403 A CN 110124403A
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- Prior art keywords
- bag
- concentration
- broken bag
- air inlet
- branch mailbox
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of pulse bag type dust collector broken bag intelligent detecting methods, comprising: which deduster imports and exports the variation for being blown room and filter chamber's pressure difference δ P2 in the variation and branch mailbox room of total pressure head δ P1 when going out jetting deashing using pressure detecting instrument real-time detection, the relevant parameter of blowing room exit dust concentration C changed when going out electromagnetic impulse valve blowing using sensing element senses is detected using concentration detector；When establishing no broken bag respectively, the value range of total pressure head δ P1, branch mailbox chamber pressure difference δ P2 and concentration C, respectively [P3, P4], [P5, P6], [0, C1]；Dedusting filtering bag is tentatively judged whether there is using the variation of C, broken bag occurs, determine that the location of broken bag and determining broken bag occur for dust settling pocket in conjunction with the variation of δ P2 and the variation of δ P1.
Description
Technical field
The present invention relates to field of dust removal equipment, in particular to a kind of pulse bag type dust collector broken bag intelligent detecting method.
Background technique
Requirement with country to attention and the energy-saving and emission-reduction of air contaminant treatment, pulse bag-type dust-removing system are extensive
For all trades and professions.Sack cleaner is a kind of dry type dust filtration device, has many advantages, such as that processing air quantity is big, efficiency of dust filtration is high.But
In use for some time, the damage of filter bag caused by because of reasons such as machinery, physics, chemistry, once broken bag occurs will be very big
Reduction deduster filter effect, cause dust outlet concentration over-standard.How promptly and accurately effective discovery broken bag and true
Determine the problem of broken bag position is current urgent need to resolve.
Concentration Testing is carried out to discharge gas using the concentration detector being set at blowing room gas outlet mostly at present, when dense
Just determine that filter bag has breakage when spending exceeded, but this kind of mode accuracy be not high, often there is the appearance of the case where erroneous judgement.
Summary of the invention
The object of the present invention is to provide a kind of pulse bag type dust collector broken bag intelligent detecting methods that accuracy is high.
To reach said effect, scheme of the present invention is: a kind of pulse bag type dust collector broken bag intelligent measurement side
Method, the pulse bag type dust collector include at least one branch mailbox room, and multiple branch mailbox rooms have total gas outlet and air inlet, always
Gas outlet and air inlet are main gas outlet and primary air inlet respectively, and each branch mailbox room is divided into the blowing being located above by separation orifice plate
Room and underlying filter chamber, each branch mailbox room, which has, to be divided air inlet and separates port, described that air inlet is divided to be located at branch mailbox
The following side or lower end of room, upper lateral part or the upper end for separating port and being located at branch mailbox room, pulse bag type dust collector further includes setting
In the concentration detector separated at port, the broken bag detection method includes:
A. detect to separate the variation of the concentration C at port using concentration detector；
When b. establishing no broken bag respectively according to the data in step a, the value range of concentration C, [0, C1]；
C. concentration C is acquired in real time, and records each electromagnetic impulse valve blowing moment, respectively t1、t2、t3…tm、…tn, work as concentration C
Greater than C1, when alarming, record at this time System production time be t, set dust from filter bag cut to concentration detector when
Between be δ t, then can determine t- δ t moment before be blown valve corresponding to row's filter bag have broken bag situation, even tm≤t-δ
t≤tm+1, it is determined that tmRow's filter bag corresponding to the valve of moment blowing has broken bag situation,
Wherein, m is less than n and is both positive integer, δ t=(L × 900 × D2× π × N)/Q, and Q is flue gas flow, D is filter bag
Diameter, N are the total quantity of filter bag of dust collector, and L is that bag bottom to the dust concentration of filter bag takes distance a little, electromagnetic impulse valve blowing
Moment is identical with the time zero of System production time.
Optimization, the pulse bag type dust collector further includes the be respectively arranged at the main gas outlet and at primary air inlet
One principal pressure detector and the second principal pressure detector, test side, which are set to, is blown indoor and test side is located above orifice plate first
Partial pressure tension gauge, test side are set to the second partial pressure tension gauge that in the filter chamber and test side is located at below orifice plate, step
Rapid a further includes main gas outlet and main air inlet when measuring blowing in real time using the first principal pressure detector and the second principal pressure detector
The total pressure head δ P of mouth1Variation, using first partial pressure tension gauge and second partial pressure tension gauge measure each blowing when branch mailbox
Indoor pressure difference δ P2Variation, step b further includes total pressure head δ P when establishing no broken bag respectively according to the data in step a1, point
The indoor pressure difference δ P of case2Value range, respectively [P3, P4]、[P5, P6], step c further includes real-time acquisition total pressure head δ P1、
Branch mailbox chamber pressure difference δ P2, there is δ P in t moment surrounding time section1< P3, while in tm+2There is δ P in moment surrounding time section2<
P5, it is determined that tmRow's filter bag corresponding to the valve of moment blowing has broken bag situation.
Further, the first principal pressure detector and the second principal pressure detector can be gone out with the master is set to
At port and at primary air inlet and for detect at main gas outlet and at primary air inlet the main pressure difference instrument of pressure difference replace, described the
One partial pressure tension gauge and the second partial pressure tension gauge can be blown with being set in the indoor and filter chamber and for examining
The partial pressure difference instrument for surveying pressure difference in branch mailbox room replaces.
Due to the above technical solutions, the present invention has the following advantages over the prior art: the present invention utilizes the change of C
Change determines whether that broken bag occurs for dedusting filtering bag, and combines δ P2Variation, δ P1Variation and pulse valve blowing time can determine that brokenly
Bag occur position, thus promptly and accurately carry out positioning maintenance, it is ensured that deduster can restore to operate normally in time.
Detailed description of the invention
Attached drawing 1 is the change curve of system and import and export total pressure head, branch mailbox chamber pressure difference and gas outlet concentration；
Attached drawing 2 is the structural schematic diagram of system；
Attached drawing 3 is the structural schematic diagram of branch mailbox room.
Specific embodiment
The invention will be further described for embodiment shown in reference to the accompanying drawing.
The intelligent broken bag detection method of pulse bag type dust collector, the pulse bag type dust collector, as shown in Figure 2,3, including
At least one branch mailbox room 1, multiple branch mailbox rooms 1 have total gas outlet and an air inlet, total gas outlet and air inlet respectively based on
Gas outlet 2 and primary air inlet 3, each branch mailbox room 1 are divided blowing room 4 and underlying mistake to be located above by demarcation plate 13
Filter chamber 5, each branch mailbox room 1, which has, to be divided air inlet 6 and separates port 7, the following side for dividing air inlet 6 to be located at branch mailbox room 1 or
Lower end, upper lateral part or the upper end for separating port 7 and being located at branch mailbox room 1, intelligent broken bag detection system further includes being respectively arranged on institute
It states the first principal pressure detector 8 at main gas outlet 2 and at primary air inlet 3 and the second principal pressure detector 9(can also main pressure difference
Instrument), test side be set in blowing room 4 and test side be located at the first of the top of partition 13 divide tension gauge 10, test side is set to
In the filter chamber 5 and test side is located at the second partial pressure tension gauge 11(first below partition and divides tension gauge and second
Partial pressure tension gauge can also be replaced with partial pressure difference instrument), set on the concentration detector 12 separated at port 7, the first partial pressure
The main part of detector 10 and the second partial pressure tension gauge 11 is located on the lateral wall of branch mailbox room, the broken bag detection method packet
It includes:
Main gas outlet and primary air inlet when a. measuring blowing in real time using the first principal pressure detector and the second principal pressure detector
Total pressure head δ P1Variation, using first partial pressure tension gauge and second partial pressure tension gauge measure every time blowing time-division chamber
Interior pressure difference δ P2Variation, detect to separate the variation of the concentration C at port using concentration detector；
When b. establishing no broken bag respectively according to the data in step a, total pressure head δ P1, the indoor pressure difference δ P of branch mailbox2And concentration C
Value range, respectively [P3, P4]、[P5, P6]、[0,C1]；
C. total pressure head δ P is acquired in real time1, pressure difference P2And concentration C, each electromagnetic impulse valve blowing moment is respectively t1、t2、t3…、
tm、…tn, when concentration C is greater than C1, when alarming, System production time is t to record at this time, while in t moment surrounding time section
Inside there is δ P1< P3, in tm+2There is δ P in moment surrounding time section2> P6, can determine the valve institute of t- δ t moment being blown before
Corresponding row filter bag has broken bag situation, even tm≤t-δt≤tm+1(m is less than n and is both positive integer), it is determined that tmWhen
Carving row's filter bag corresponding to the valve of blowing has broken bag situation,
According to the following formula:
S=Q/V1………………………………①
N=S/(π·D·L1) …………………②
V1=Q/S………………………………③
S1=…………………………④
V=Q/(S1×N) ………………………⑤
It can obtain δ t=(L2×900×D2× π × N)/Q, unit s, wherein Q is flue gas flow, unit m3/h；V is bag
One's intention as revealed in what one says speed, unit m/s；V1For filtration velocity, unit m/min；S is filter area, unit ㎡；S1It is single for sack area
Wei Wei ㎡；L1For filter bag length, unit m；D is filter bag diameter, unit m；N is single filter bag quantity, L2For the bag bottom of filter bag
Distance a little is taken to dust concentration, it is identical with the time zero of System production time that electromagnetic impulse valve is blown the moment.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of pulse bag type dust collector broken bag intelligent detecting method, the pulse bag type dust collector includes at least one branch mailbox
Room, multiple branch mailbox rooms have total gas outlet and air inlet, and total gas outlet and air inlet are main gas outlet and main air inlet respectively
Mouthful, each branch mailbox room is divided into the blowing room and underlying filter chamber being located above, each branch mailbox room tool by separation orifice plate
Have point air inlet and separate port, the following side or lower end for dividing air inlet to be located at branch mailbox room, it is described separate port and be located at divide
The upper lateral part of chamber or upper end, pulse bag type dust collector further include set on the concentration detector separated at port, feature
It is, the broken bag detection method includes:
A. detect to separate the variation of the concentration C at port using concentration detector；
When b. establishing no broken bag respectively according to the data in step a, the value range of concentration C, [0, C1]；
C. concentration C is acquired in real time, and records each electromagnetic impulse valve blowing moment, respectively t1、t2、t3…tm、…tn, work as concentration C
Greater than C1, when alarming, record at this time System production time be t, set dust from filter bag cut to concentration detector when
Between be δ t, then can determine t- δ t moment before be blown valve corresponding to row's filter bag have broken bag situation, even tm≤t-δ
t≤tm+1, it is determined that row's filter bag corresponding to the valve that the tm moment is blown has broken bag situation,
Wherein, δ t=(L × 900 × D2× π × N)/Q, and Q is flue gas flow, D is filter bag diameter, and N is the sum of filter bag of dust collector
Amount, L are that bag bottom to the dust concentration of filter bag takes distance a little, and electromagnetic impulse valve is blown the timing at moment and System production time
Starting point is identical.
2. pulse bag type dust collector broken bag intelligent detecting method according to claim 1, it is characterised in that: the pulse packet
Formula deduster further includes the first principal pressure detector and the second main pressure being respectively arranged at the main gas outlet and at primary air inlet
Tension gauge, test side are set to the first partial pressure tension gauge for being blown indoor and test side and being located above orifice plate, test side is set to
In the filter chamber and test side is located at the second partial pressure tension gauge below orifice plate, and step a further includes utilizing the first principal pressure
Detector and the second principal pressure detector measure the total pressure head δ P of main gas outlet and primary air inlet when blowing in real time1Variation, benefit
The blowing indoor pressure difference δ P of time-division case every time is measured with the first partial pressure tension gauge and the second partial pressure tension gauge2Variation, step
Rapid b further includes total pressure head δ P when establishing no broken bag respectively according to the data in step a1, the indoor pressure difference δ P of branch mailbox2Value model
It encloses, respectively [P3, P4]、[P5, P6], step c further includes real-time acquisition total pressure head δ P1, branch mailbox chamber pressure difference δ P2, in t moment
Occurs δ P in surrounding time section1< P3, while in tm+2There is δ P in moment surrounding time section2< P5, it is determined that tmThe valve of moment blowing
There is broken bag situation in corresponding row's filter bag.
3. pulse bag type dust collector broken bag intelligent detecting method according to claim 2, it is characterised in that: described first is main
Pressure detecting instrument and the second principal pressure detector can be set at the main gas outlet and at primary air inlet and for examining
Survey at main gas outlet and at primary air inlet the main pressure difference instrument of pressure difference replace, the first partial pressure tension gauge and second point described
Pressure detecting instrument can use the partial pressure difference instrument generation for being set in blowing interior and the filter chamber and be used to detect pressure difference in branch mailbox room
It replaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510274.8A CN110124403A (en) | 2019-06-13 | 2019-06-13 | Pulse bag type dust collector broken bag intelligent detecting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510274.8A CN110124403A (en) | 2019-06-13 | 2019-06-13 | Pulse bag type dust collector broken bag intelligent detecting method |
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| CN110124403A true CN110124403A (en) | 2019-08-16 |
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ID=67581489
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910510274.8A Pending CN110124403A (en) | 2019-06-13 | 2019-06-13 | Pulse bag type dust collector broken bag intelligent detecting method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110604981A (en) * | 2019-09-27 | 2019-12-24 | 合肥中亚环保科技有限公司 | Bag breaking intelligent detection method of bag type dust collector |
| CN112268582A (en) * | 2020-10-22 | 2021-01-26 | 张恩然 | Dust collecting equipment intelligent monitoring analysis management system based on big data |
| CN113203560A (en) * | 2021-03-22 | 2021-08-03 | 宣化钢铁集团有限责任公司 | Quick positioning device and method for damaged diaphragm of tandem pulse valve |
| CN114001883A (en) * | 2021-12-30 | 2022-02-01 | 山东海林环保设备工程有限公司 | Sealing performance detection device of environmental protection equipment |
| CN114534383A (en) * | 2022-03-25 | 2022-05-27 | 无锡红旗除尘设备有限公司 | Pulse blowing control method |
| CN114832517A (en) * | 2022-06-17 | 2022-08-02 | 河南工小艺物联科技有限公司 | Pulse control system with bag breaking and positioning functions |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110604981A (en) * | 2019-09-27 | 2019-12-24 | 合肥中亚环保科技有限公司 | Bag breaking intelligent detection method of bag type dust collector |
| CN112268582A (en) * | 2020-10-22 | 2021-01-26 | 张恩然 | Dust collecting equipment intelligent monitoring analysis management system based on big data |
| CN112268582B (en) * | 2020-10-22 | 2022-12-23 | 上海煤科信息科技有限公司 | Dust collecting equipment intelligent monitoring analysis management system based on big data |
| CN113203560A (en) * | 2021-03-22 | 2021-08-03 | 宣化钢铁集团有限责任公司 | Quick positioning device and method for damaged diaphragm of tandem pulse valve |
| CN113203560B (en) * | 2021-03-22 | 2022-05-24 | 宣化钢铁集团有限责任公司 | Quick positioning device and method for damaged diaphragm of tandem pulse valve |
| CN114001883A (en) * | 2021-12-30 | 2022-02-01 | 山东海林环保设备工程有限公司 | Sealing performance detection device of environmental protection equipment |
| CN114001883B (en) * | 2021-12-30 | 2022-03-25 | 山东海林环保设备工程有限公司 | Sealing performance detection device of environmental protection equipment |
| CN114534383A (en) * | 2022-03-25 | 2022-05-27 | 无锡红旗除尘设备有限公司 | Pulse blowing control method |
| CN114534383B (en) * | 2022-03-25 | 2023-07-21 | 无锡红旗除尘设备有限公司 | Pulse blowing control method |
| CN114832517A (en) * | 2022-06-17 | 2022-08-02 | 河南工小艺物联科技有限公司 | Pulse control system with bag breaking and positioning functions |
| CN114832517B (en) * | 2022-06-17 | 2024-03-22 | 河南工小艺物联科技有限公司 | Pulse control system with bag breaking and positioning functions |
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Application publication date: 20190816 |
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