CN102121895A - Mobile test instrument for dust collecting bag - Google Patents
Mobile test instrument for dust collecting bag Download PDFInfo
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- CN102121895A CN102121895A CN 201110023360 CN201110023360A CN102121895A CN 102121895 A CN102121895 A CN 102121895A CN 201110023360 CN201110023360 CN 201110023360 CN 201110023360 A CN201110023360 A CN 201110023360A CN 102121895 A CN102121895 A CN 102121895A
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- air chamber
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Abstract
The invention provides a mobile test instrument for a dust collecting bag. The mobile test instrument comprises a compressed air pipe, an air chamber which is connected with the compressed air pipe via an air valve, an air blowpipe fixedly connected at one side of the air chamber, an air suction pipe fixedly connected at one side of the air chamber, and a standard pipe fixedly connected with the air suction pipe, wherein, the air chamber is internally equipped with an I-shaped reversing ring; the exterior of the I-shaped reversing ring and the inner wall of the air chamber form an annular air chamber; the side wall of the annular air chamber is equipped with a plurality of jet holes, and the jet holes are arranged opposite to the air blowpipe; one side of the standard pipe is equipped with a wind speed measuring hole and a pressure measuring hole, a wind speed induction head is inserted into the wind speed measuring hole, and the other end of the wind speed induction head is connected with the wind speed joint of a measuring instrument via a conducting wire; and a pressure hose is inserted into the pressure measuring hole, and the other end of the pressure hose is connected with the pressure joint of the measuring instrument. The mobile test instrument has a simple and compact structure, is simple in operation and convenient in maintenance, and can be used for accurately measuring wind speed and resistance data and precisely estimating the service condition of the bag.
Description
Technical field
The present invention relates to a kind of tester, particularly a kind of is the mobile test instrument that the filter bag in the sack cleaner carries out on-the-spot test.
Background technology
Sack cleaner is the equipment that dust and dust are separated from flue gas, and it is widely used in the dedusting of industries such as thermal power generation, casting, waste incineration, cement, mining.Because improving constantly of national requirements for environmental protection, the positive large tracts of land of old-fashioned in the market electric precipitator is replaced by sack cleaner, as shown in Figure 3, the flue gas that contains dust and dust enters the visceral-qi chamber 30 of fly-ash separator inner sealing card 20 bottoms from air intake opening 29, there are a plurality of 2～10 meters long filter bags 31 inside of fly-ash separator, its material is natural fiber, chemical synthetic fiber, glass fibre or metal fibre etc., has cage bone 19 to support in the filter bag 31.The top of fly-ash separator has one deck sealing card 20 to prevent the leakage of flue gas, the top of filter bag is the filter pocket mouths 21 of passing sealing card 20, filter pocket mouths is connected with gas exhaust duct 27 by sealing card 20 top air-purifying chambers 24, flue gas sees through the inside that filter bag 18 enters filter bag after entering the inside of fly-ash separator, dust and dust are blocked in the outside of filter bag, gas after the filtration enters gas channel by the passway, reaches the effect that purifies flue gas.After the long-term use of fly-ash separator, filter bag is outside can to accumulate a thick layer of ash, can influence the filtration and the serviceable life of filter bag, the part fly-ash separator self has the pulsed pneumatic shuttle, can from high pressure gas bag 22, import winding-up pipe 25 to the gas of high pressure by pulse valve 23, injection hole 26 from cloth bag oral area top sprays into filter bag at last, make filter bag be subjected to gas impact and with the intermittent collision of the cage ostosis of inside, allow filter bag in shake, outside dust shake be dropped into into dust collector ash hopper 28, reach certain dedusting effect.
In use, complicated reason owing to operating mode, dust can be piled up more and more on filter bag 31 surfaces and harden, and causes SR to rise rapidly, causes the user can't accurately understand the operating position of cloth bag under the field condition and need to judge whether and safeguard or change.
Summary of the invention
The present invention provides a kind of dust-removal cloth-bag mobile test instrument for solving the problem that filter bag can't carry out the strainability test at the scene in the sack cleaner, the invention provides following technical scheme:
A kind of dust-removal cloth-bag mobile test instrument, it comprises compressed air hose, the air chamber that is connected with described compressed air hose by air valve, be fixedly connected on the gas blow pipe of described air chamber one side, be fixedly connected on the air intake duct of described air chamber one side and the standard pipe that is fixedly connected on air intake duct, one I shape break-in ring is installed in the described air chamber, described I shape break-in ring is outside to form a ring-type air chamber with described air chamber inwall, the sidewall of ring-type air chamber is provided with a plurality of spray-holes, described spray-hole is right against described gas blow pipe, described standard pipe one side offers measuring wind speed hole and pick-up hole, described measuring wind speed is inserted with the wind speed inductive head in the hole, and the other end of described wind speed inductive head is connected in the wind speed joint of meter by call wire; Be inserted with pressure hose in the described pick-up hole, the other end of described pressure hose is connected with the compression fittings of described meter.
As a preferred embodiment of the present invention, described air valve is provided with switch knob.
As another kind of preferred version of the present invention, the lower end of described standard pipe is connected with the current-sharing cover by first joint, and described current-sharing cover lower edge is equipped with sealing strip.
The present invention has following advantage:
1. simple and compact for structure, simple to operate, easy to maintenance;
2. the data of accurate measuring wind and resistance can accurately be estimated the cloth bag operating position;
3. by the application of air-spray principle, reduced the volume of equipment;
4. by measuring the wind speed and the resistance situation of cloth bag inside, in time sack cleaner is safeguarded, prolonged the serviceable life of sack cleaner.
Description of drawings
Fig. 1 structural representation of the present invention;
Fig. 2 air chamber part-structure of the present invention synoptic diagram;
Fig. 3 sack cleaner structural representation;
Fig. 4 use-case figure of the present invention.
Number in the figure is:
1-compressed air hose 2-air valve 3-switch knob
4-air chamber 5-I shape break-in ring 6-spray-hole
7-gas blow pipe 8-air intake duct 9-standard pipe
10-measuring wind speed hole 11-wind speed inductive head 12-call wire
13-pick-up hole 14-pressure hose 15-meter
The 16-first joint 17-current-sharing cover 18-seal closure
19-cage bone 20-sealing card 21-filter pocket mouths
22-high pressure gas bag 23-pulse valve 24-air-purifying chamber
25-winding-up pipe 26-injection hole 27-gas exhaust duct
28-dust collector ash hopper 29-air intake opening 30-visceral-qi chamber
The 31-filter bag
Embodiment
Below this process implementing example is elaborated, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
Shown in Fig. 1 structural representation of the present invention and Fig. 2 air chamber part-structure of the present invention synoptic diagram, compressed air hose 1 is connected with air chamber 4 by the air valve 2 that has switch knob 3, be provided with I shape break-in ring 5 in the air chamber 4, I shape break-in ring 5 outside inside with air chamber 4 form a ring-type air chamber, offer a plurality of spray-holes 6 on the sidewall of ring-type air chamber one end.Air chamber 4 communicates with gas blow pipe 7 and air intake duct 8 respectively, and spray-hole 6 is right against gas blow pipe 7.
Air intake duct 8 belows link to each other with standard pipe 9, standard pipe 9 one sides offer measuring wind speed hole 10 and pick-up hole 13, be inserted with wind speed inductive head 11 in the measuring wind speed hole 10, the other end of wind speed inductive head 11 is connected with the wind speed joint of meter 15 by call wire 12.Be inserted with pressure hose 14 in the pick-up hole 13, the other end of pressure hose 14 is connected with the compression fittings of meter 15.
Standard pipe 9 lower ends are connected with current-sharing cover 17 by first joint 16, and the lower edge of current-sharing cover 17 is equipped with a circle sealing strip 18.
It is to utilize the aerodynamic force jet current principle, actuating medium is pressurized air and atmosphere, pressurized air enters compressed air hose by on-the-spot compressed air source, by entering ring-type air chamber in the rifle body after the air valve adjusting, in a disguised form encircle the change airflow direction through I shape, pressurized air by spray-hole along gas blow pipe high velocity jet forward, thereby in air intake duct, form the negative pressure that reaches as high as 33kPa.Negative pressure can drive air in the fly-ash separator and pass filter bag and discharge with off-air through measurement point.Utilize the aperture size of air valve switch can control the negative pressure of compressed-air actuated flow and formation, can make different wind speed, measure one group of data of wind speed one resistance through cloth bag.
During use, at first dust-removal cloth-bag mobile test instrument is covered target test filter bag, compress; Again pressurized air is connected with air valve by compressed air hose; The rotary switch spanner is opened air valve and is begun to measure, and selects different air valve folding degree record wind speed one drag datas at this moment for use.
Shown in Fig. 4 use-case figure of the present invention, only standard pipe need be fixedlyed connected with the card hole during use and get final product.
The above; it only is one of the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (3)
1. dust-removal cloth-bag mobile test instrument, it is characterized in that: it comprises compressed air hose (1), the air chamber (4) that is connected with described compressed air hose (1) by air valve (2), be fixedly connected on the gas blow pipe (7) of described air chamber (4) one sides, the standard pipe (9) that is fixedly connected on the air intake duct (8) of described air chamber (4) one sides and is fixedly connected on described air intake duct (8), one I shape break-in ring (5) is installed in the described air chamber (4), described I shape break-in ring (5) is outside to form a ring-type air chamber with described air chamber (4) inwall, the sidewall of ring-type air chamber is provided with a plurality of spray-holes (6), described spray-hole (6) is right against described gas blow pipe (7), described standard pipe (9) one sides offer measuring wind speed hole (10) and pick-up hole (13), be inserted with wind speed inductive head (11) in the described measuring wind speed hole (10), the other end of described wind speed inductive head (11) is connected in the wind speed joint of meter (15) by call wire (12); Be inserted with pressure hose (14) in the described pick-up hole (13), the other end of described pressure hose (14) is connected with the compression fittings of described meter (15).
2. dust-removal cloth-bag mobile test instrument according to claim 1 is characterized in that: described air valve (2) is provided with switch knob (3).
3. dust-removal cloth-bag mobile test instrument according to claim 1 is characterized in that: the lower end of described standard pipe (9) is connected with current-sharing cover (17) by first joint (16), and described current-sharing cover (17) lower edge is equipped with sealing strip (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110023360 CN102121895A (en) | 2011-01-21 | 2011-01-21 | Mobile test instrument for dust collecting bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110023360 CN102121895A (en) | 2011-01-21 | 2011-01-21 | Mobile test instrument for dust collecting bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102121895A true CN102121895A (en) | 2011-07-13 |
Family
ID=44250497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110023360 Pending CN102121895A (en) | 2011-01-21 | 2011-01-21 | Mobile test instrument for dust collecting bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102121895A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515710A (en) * | 2013-09-28 | 2015-04-15 | 厦门三维丝环保股份有限公司 | Testing apparatus for testing jetting resistance of bag type dust removal filter material and testing method |
| CN105784565A (en) * | 2016-04-05 | 2016-07-20 | 中国重型机械研究院股份公司 | Estimation method for air resistance of filter material of high-vacuum cloth bag filter |
| CN114984667A (en) * | 2022-06-08 | 2022-09-02 | 北票发电有限责任公司 | Negative pressure dust removal device and method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113435A (en) * | 1995-10-20 | 1997-05-02 | Amano Kogyo Gijutsu Kenkyusho | Measuring apparatus for dust holding amount of bag filter |
| WO2005107557A1 (en) * | 2004-04-27 | 2005-11-17 | Fibermark Gessner Gmbh & Co. | Dust filter bag containing a layer of foam |
| CN101642653A (en) * | 2009-08-25 | 2010-02-10 | 洁华控股股份有限公司 | Sack-duster pulse blowing test device and test method thereof |
| CN201445868U (en) * | 2009-06-12 | 2010-05-05 | 吴建华 | Mobile dust removal device |
-
2011
- 2011-01-21 CN CN 201110023360 patent/CN102121895A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113435A (en) * | 1995-10-20 | 1997-05-02 | Amano Kogyo Gijutsu Kenkyusho | Measuring apparatus for dust holding amount of bag filter |
| WO2005107557A1 (en) * | 2004-04-27 | 2005-11-17 | Fibermark Gessner Gmbh & Co. | Dust filter bag containing a layer of foam |
| CN201445868U (en) * | 2009-06-12 | 2010-05-05 | 吴建华 | Mobile dust removal device |
| CN101642653A (en) * | 2009-08-25 | 2010-02-10 | 洁华控股股份有限公司 | Sack-duster pulse blowing test device and test method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《2010全国过滤材料和工业呢毡高新技术推广应用交流会论文集》 20101231 吴建华等 "糊袋"-除尘布袋的常见病--除尘布袋失效分析之一 , 2 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515710A (en) * | 2013-09-28 | 2015-04-15 | 厦门三维丝环保股份有限公司 | Testing apparatus for testing jetting resistance of bag type dust removal filter material and testing method |
| CN105784565A (en) * | 2016-04-05 | 2016-07-20 | 中国重型机械研究院股份公司 | Estimation method for air resistance of filter material of high-vacuum cloth bag filter |
| CN105784565B (en) * | 2016-04-05 | 2019-06-18 | 中国重型机械研究院股份公司 | A kind of evaluation method of high vacuum cloth envelop collector filtrate air resistance |
| CN114984667A (en) * | 2022-06-08 | 2022-09-02 | 北票发电有限责任公司 | Negative pressure dust removal device and method thereof |
| CN114984667B (en) * | 2022-06-08 | 2024-04-23 | 北票发电有限责任公司 | Negative pressure dust removing device and method thereof |
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Application publication date: 20110713 |