CN105363296B - Sack cleaner leakage detection apparatus and its leak hunting method - Google Patents
Sack cleaner leakage detection apparatus and its leak hunting method Download PDFInfo
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- CN105363296B CN105363296B CN201410395681.6A CN201410395681A CN105363296B CN 105363296 B CN105363296 B CN 105363296B CN 201410395681 A CN201410395681 A CN 201410395681A CN 105363296 B CN105363296 B CN 105363296B
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- cloth bag
- electromagnetic valve
- cloth
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Abstract
The present invention provides a kind of sack cleaner leakage detection apparatus and its leak hunting method, leakage detection apparatus includes impulse electromagnetic valve and gland, the impulse electromagnetic valve connects air inlet pipe and escape pipe respectively, the gland is the cylinder of upper end closed, the escape pipe passes through the gland and extends to the lower section of the gland, the upper end of the gland sets a pressure gauge, and the material of the gland is steel, and the lower end of the gland is provided with sealing gasket.The device is simple to operate, manufacturing cost is cheap, and detection time is short when being hunted leak using the device and catches leakage efficiency high, can effectively prevent the dust pollution that missing inspection is brought.
Description
Technical field
The present invention relates to dust arrester leak detection field, more particularly to a kind of sack cleaner leakage detection apparatus and its leak detection side
Method.
Background technology
Sack cleaner is a kind of dry type dust filtration device, is applied widely in industrial practice, is especially applied in combustion
The industry effect such as coal, metallurgy is notable.Sack cleaner is applied to trap tiny, dry, non-fiber dust, and filter bag is using weaving
Filter cloth or nonwoven felt into being filtered using the filtration of fabric to dusty gas, when dusty gas enters
Enter after sack cleaner, adsorbing powder dust on cloth bag, deashing device to cloth bag deashing, dust gravity and gas impact and tremble
Settled down under dynamic, fall into ash bucket.In metallurgy industry, more dust would generally be produced during plant working, is now needed big
The sack cleaner of capacity, but the phenomenon for causing chimney to emit ash because cloth bag often has breakage happens occasionally, it is necessary to enter to cloth bag
Row, which is caught, Lou to be changed.The cloth bag dust excluder leak hunting method formed in industrial processes mainly has two kinds：Light sensing method and electric charge sense
Ying Fa.
Light sensing leak detecting mainly uses the difference of dust concentration, and the light scattering characteristic of dust and the light absorbs of dust are special
Property will vary to judge whether sack cleaner occurs that cloth bag is damaged because dust physical property and dust color not
Together, the light scattering characteristic of dust and the optical absorption characteristics of dust have very big difference.
Electric charge induction method be according to dust group's carried charge number judge that the height of dust concentration is hunted leak, flue gas
In dust more or less all with a certain amount of electric charge, it is, in principle, that dust concentration is higher, powered total amount is more, but
It is due to that different dusts electrically have very big difference, some dust are easily charged, some dust are difficult charged, and some dust are easy
Lotus positive electricity, the easy bear electricity having, it is seen then that the accuracy of leak detection of electric charge induction method is undesirable.
, can not be damaged specific to which cloth bag but above two method can only determine whether that cloth bag is damaged, therefore
When cloth bag is caught leakage, common practice is to need maintainer to detect by an unaided eye and lean on micro-judgment cloth bag breakage in practice,
Because dust-collecting bag is large number of, maintainer's subjective judgement cloth bag breakage is inaccurate, and process expends larger manpower
Resource and time.
The content of the invention
The shortcoming of prior art in view of the above, the invention solves the problems that first technical problem be to provide a kind of inspection
The sack cleaner leakage detection apparatus that the leakage time is short, accuracy rate is high.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of sack cleaner leakage detection apparatus, including
Impulse electromagnetic valve and gland, the impulse electromagnetic valve connect air inlet pipe and escape pipe respectively, and the gland is the circle of upper end closed
Cylinder, the escape pipe passes through the gland and extends to the lower section of the gland, and the upper end of the gland sets a pressure gauge, institute
The material for stating gland is steel, and the lower end of the gland is provided with sealing gasket.
Preferably, the material of the sealing gasket is rubber.
Preferably, the impulse electromagnetic valve is right-angle type impulse electromagnetic valve.
The invention solves the problems that second technical problem be the provision of the sack cleaner leakage detection apparatus and hunted leak
Method.
The method of the leak detection comprises the following steps：
1) determine that pressure criteria is interval：Take two cloth bags as detection sample, one of them is brand-new intact cloth bag, separately
One intact cloth bag to have used 1~2 year, detects to above-mentioned cloth bag, i.e., gland is pressed on into cloth sack, open respectively
Impulse electromagnetic valve squeezes into gas, and pressure gauge shows a maximal pressure force value, the maximal pressure force value of the brand-new intact cloth bag
P1 is calculated as, has used the maximal pressure force value of the intact cloth bag of 1~2 year to be calculated as P2, the pressure criteria interval is P1~P2；
2) cloth bag in region to be checked is detected：Gland is pressed on to the cloth sack of cloth bag to be checked, impulse electromagnetic valve is opened and squeezes into
Gas, pressure gauge shows a maximal pressure force value, if the maximal pressure force value is in pressure criteria is interval, the cloth bag is complete
Good, if maximal pressure force value is less than P1, the cloth bag is damaged.
As described above, sack cleaner leakage detection apparatus of the present invention and its leak hunting method, have the advantages that：
Simple to operate, detection time is short when the 1st, being detected using the device and catch leakage efficiency high, it is to avoid what missing inspection was brought
Dust pollution.
2nd, maintainer need not enter is checked in ash bucket, effectively increases the safety coefficient of operating personnel.
3rd, the quantity of operating personnel is reduced, cost has been saved；
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of sack cleaner.
Component label instructions
1 impulse electromagnetic valve
11 air inlet pipe
12 escape pipes
2 glands
21 pressure gauges
22 sealing gaskets
3 cloth bags
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate specification to be taken off
The content shown, so that those skilled in the art is understood with reading, is not limited to enforceable qualifications of the invention, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing the present invention
Under the effect that can be generated and the purpose that can reach, it all should still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile, cited such as " on ", " under ", "left", "right", the term of " centre ", are merely convenient to chat in this specification
That states understands, and is not used to limit enforceable scope of the invention, and being altered or modified for its relativeness is changing skill without essence
Held in art, when being also considered as enforceable category of the invention.
As shown in figure 1, the present invention provides a kind of sack cleaner leakage detection apparatus, including impulse electromagnetic valve 1 and gland 2, institute
State impulse electromagnetic valve 1 and connect air inlet pipe 11 and escape pipe 12 respectively, the gland 2 is the cylinder of upper end closed, the air inlet
Provided with switch at impulse electromagnetic valve 1 on pipe 11, facilitate the use of leakage detection apparatus, the escape pipe 12 passes through the gland 2
And the lower section of the gland 2 is extended to, during leak detection, as shown in Fig. 2 escape pipe 12 can extend into the inner space of cloth bag 3, it is described
The upper end of gland 2 sets a pressure gauge 21, and the material of the gland 2 is steel, it is ensured that the long-time of gland 2 uses indeformable, the pressure
The lower end of lid 2 is provided with sealing gasket 22, it is preferable that the material of the sealing gasket 22 is rubber, it is ensured that gland 2 is pressed on cloth sack,
The gas squeezed into will not be escaped.
Preferably, the impulse electromagnetic valve 1 is right-angle type impulse electromagnetic valve, i.e. air inlet pipe 11 and perpendicular point of escape pipe 12
Cloth, it is ensured that leakage detection apparatus uses more convenient.
Preferably, the air inlet pipe 11 preferably high pressure resistant air hose, caliber 50mm, the preferred caliber of the escape pipe 12
50mm steel pipe.
Present invention also offers the method that the sack cleaner leakage detection apparatus is hunted leak.
The method of the leak detection comprises the following steps：
1) determine that pressure criteria is interval：Take two cloth bags as detection sample, one of them is brand-new intact cloth bag, separately
One intact cloth bag to have used 1~2 year, detects to above-mentioned cloth bag, i.e., gland 2 is pressed on into cloth sack, beat respectively
Open impulse electromagnetic valve 1 and squeeze into gas, gas can be full of cloth bag moment, and pressure gauge 21 shows a maximal pressure force value, now remembered
The maximal pressure force value of the record brand-new intact cloth bag is P1, and the maximal pressure force value for having used the intact cloth bag of 1~2 year is P2,
The pressure criteria interval is P1~P2；
2) cloth bag in region to be checked is detected：As depicted in figs. 1 and 2, gland 2 is pressed on to the cloth sack of cloth bag to be checked, beaten
Open impulse electromagnetic valve 1 and squeeze into gas, observation pressure gauge 21 shows a maximal pressure force value, if the maximal pressure force value is in pressure
In standard is interval, then the cloth bag is intact, if maximal pressure force value is less than P1, the cloth bag is damaged, because when squeezing into gas, gas
Cognition gushes out from breakage, causes maximal pressure force value to be less than P1.
Relative to the leak hunting method of direct visual perception, when being hunted leak using above-mentioned leakage detection apparatus, the leak detection time has substantially
Shortening, the accuracy rate of leak detection also improves a lot, it is to avoid the dust pollution that missing inspection is brought.
In summary, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (1)
1. a kind of method that sack cleaner leakage detection apparatus is hunted leak, sack cleaner leakage detection apparatus includes impulse electromagnetic valve
(1) and gland (2), the impulse electromagnetic valve (1) connects air inlet pipe (11) and escape pipe (12) respectively, and the gland (2) is upper
The cylinder that end seal is closed, the escape pipe (12) passes through the gland (2) and extends to the lower section of the gland (2), the pressure
The upper end of lid (2) sets a pressure gauge (21), and the material of the gland (2) is steel, and the lower end of the gland (2) is provided with sealing gasket
(22)；The air inlet pipe (11) is high pressure resistant air hose, and the material of the sealing gasket (22) is rubber, the impulse electromagnetic valve
(1) it is right-angle type impulse electromagnetic valve, it is characterized in that, comprise the following steps：
1) determine that pressure criteria is interval：Take two cloth bags as detection sample, one of them is brand-new intact cloth bag, another
To have used the intact cloth bag of 1~2 year, above-mentioned cloth bag is detected respectively, i.e., gland (2) is pressed on cloth sack, will be gone out
Tracheae (12) extend into the inner space of cloth bag (3), opens impulse electromagnetic valve (1) and squeezes into gas, gas moment is full of cloth bag, pressure
Power table shows a maximal pressure force value, and the maximal pressure force value of the brand-new intact cloth bag is calculated as P1, used 1~2 year
The maximal pressure force value of intact cloth bag is calculated as P2, and the pressure criteria interval is P1~P2；
2) cloth bag in region to be checked is detected：Gland (2) is pressed on to the cloth sack of cloth bag to be checked, escape pipe (12) is extend into cloth
The inner space of bag (3), opens impulse electromagnetic valve (1) and squeezes into gas, pressure gauge shows a maximal pressure force value, if this is most
High pressure values are in pressure criteria is interval, then the cloth bag is intact, if maximal pressure force value is less than P1, the cloth bag is damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395681.6A CN105363296B (en) | 2014-08-13 | 2014-08-13 | Sack cleaner leakage detection apparatus and its leak hunting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395681.6A CN105363296B (en) | 2014-08-13 | 2014-08-13 | Sack cleaner leakage detection apparatus and its leak hunting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105363296A CN105363296A (en) | 2016-03-02 |
| CN105363296B true CN105363296B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410395681.6A Active CN105363296B (en) | 2014-08-13 | 2014-08-13 | Sack cleaner leakage detection apparatus and its leak hunting method |
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| CN (1) | CN105363296B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647061A (en) * | 2018-12-18 | 2019-04-19 | 新乡中新化工有限责任公司 | A kind of operating method for fine coal chemical industry filter bag leakage detection |
| CN113689494B (en) * | 2020-05-18 | 2024-03-19 | 中冶宝钢技术服务有限公司 | Damaged cloth bag positioning method for cloth bag dust remover |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9125714D0 (en) * | 1991-12-03 | 1992-01-29 | Coal Industry Patents Ltd | Improvements relating to candle filter arrangements |
| CN2170514Y (en) * | 1993-05-06 | 1994-06-29 | 江苏省建筑材料研究设计院 | Multifunctional sampler for powdery material |
| CN201519528U (en) * | 2009-09-18 | 2010-07-07 | 鞍钢集团矿业公司 | Dust-removing cloth bag penetration detecting device |
| CN102764550A (en) * | 2012-08-02 | 2012-11-07 | 中冶赛迪工程技术股份有限公司 | Leakage detecting device of bag-type dust remover and leakage detecting method thereof |
| CN202974595U (en) * | 2012-10-31 | 2013-06-05 | 美的集团股份有限公司 | High-precision gas leak detection device |
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