CN2410052Y - Extra-low pressure jetting pulse bag type dust remover - Google Patents
Extra-low pressure jetting pulse bag type dust remover Download PDFInfo
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- CN2410052Y CN2410052Y CN00229335.8U CN00229335U CN2410052Y CN 2410052 Y CN2410052 Y CN 2410052Y CN 00229335 U CN00229335 U CN 00229335U CN 2410052 Y CN2410052 Y CN 2410052Y
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- 239000000428 dust Substances 0.000 title claims description 39
- 238000002347 injection Methods 0.000 claims abstract description 32
- 239000007924 injection Substances 0.000 claims abstract description 32
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 abstract 4
- 238000010276 construction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000001914 filtration Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
一种超低压喷吹的脉冲袋式除尘器,是在现有的以空压机作气源的长袋低压大型脉冲袋式除尘器的基础上,增大气包容积、脉冲阀出气管管径、喷吹管管径、喷吹孔孔径,来降低喷吹压力和增大喷吹空气量,从而可用罗茨鼓风机代替空压机作气源,本实用新型投资省,维护管理简单,不受地区限制,适用于大、中、小型脉冲袋式除尘器的新建和改建工作。
A pulse bag filter with ultra-low pressure injection, which is based on the existing long-bag low-pressure large-scale pulse bag filter with an air compressor as the gas source. , the diameter of the blowing pipe, and the diameter of the blowing hole to reduce the blowing pressure and increase the blowing air volume, so that the Roots blower can be used instead of the air compressor as the air source. The utility model has low investment, simple maintenance and management, and is not affected by the region. It is suitable for new construction and reconstruction of large, medium and small pulse bag filter.
Description
The utility model relates to a kind of dust arrester, a kind of specifically pulse bag type dust collector of doing ultralow pressure (0.08MPa the is following) winding-up of source of the gas with Roots blower replacement air compressor machine.
Pulse bag type dust collector is that ash-removal effect is best in all types sack cleaner, after early seventies imports China into, just obtains extensive use.But in use meet some problems, mainly be that compressed air pressure is not enough, when not guaranteeing the pulse bag type dust collector winding-up, the 0.5-0.7MPa pressure that needs causes filter bag outer surface dust layer thickening, and filtration resistance increases, systematic air flow reduces, thereby the dirt source is out of hand, and the operational area dust concentration increases, and finally causes the dust pelletizing system paralysis.At this reason, the eighties has been developed long bag low pressure big pulse bag filter, has more successfully solved the problems referred to above, and as the long bag of the LY-1 type low pressure big pulse bag filter that Hebi City cleaner factory produces, its gas bag volume is 0.253m
3Pulse valve escape pipe caliber is 80mm; Winding-up pipe diameter is 104mm; The injection hole diameter is 22-28mm; Gas bag is a square, and pulse valve is vertical connection with the winding-up pipe, and its jetting pressure still has 0.15-0.25MPa; Although the compressed air pipe network has only 0.3-0.4MPa, long bag low pressure big pulse bag filter also can operate as normal, but the industrial enterprise that the compressed air pipe network is arranged are minority after all, to most of factories and miness, there is not the compressed air pipe network, for the minority deduster, also be unwilling to be provided with separately air compressor machine.Because the investment of air compressor machine is big, the workload of maintenance management is also big, like this, because the source of the gas problem has influenced applying of pulse bag type dust collector.And because of You Heshui is arranged in the compressed air, cold district can not use pulse bag type dust collector because of frozen problem.Learning from aerodynamics, if reach the supersonic speed winding-up, must be the convergent divergent nozzle, resembles pulse bag type dust collector, by the aperture winding-up of winding-up pipe upper side, can only be the subsonic speed winding-up, and the critical pressure coefficient η of air
Ij=0.528, learn that thus obtain the pressure P＜0.091MPa of subsonic speed winding-up, the jetting pressure P＜0.091MPa of this explanation pulse bag type dust collector is just much of that.From pump and ventilation blower, learn, the efficient of injector in the energy change of variable is not high, lost big energy, have only the energy of 10-20% to make pulse bag type dust collector when winding-up, by the winding-up pipe on filter bag top, the air supply and the secondary injection air-flow of hole winding-up, enter in the filter bag together and realize.From reduce the test of pulse bag type dust collector jetting pressure, learn, identical in other condition, only strengthen gas bag volume on the deduster (increasing 1.13 times) and compressed air consumption (increase 0.114-0.457 doubly) and can satisfy the requirement of deduster jetting deashing, jetting pressure can be reduced to 0.4-0.5MPa from 0.6-0.7MPa simultaneously.More than 3 jetting pressures that pulse bag type dust collector all is described theoretically, reduce to＜0.09MPa is fully possible.Find out that from the principle of pulse jetting deashing the quality of ash-removal effect depends on instantaneous air capacity and the pressure that injects in the filter bag, i.e. deashing energy.Reduce jetting pressure, must take some approach and measure, promptly the pressure drop in the gas bag is very little and increase the winding-up air capacity and reduce compressed air drag losses when flowing between injection hole from gas bag in the winding-up process, to keep the winding-up constant in energy, just can reach same ash-removal effect.
The purpose of this utility model is to provide a kind of can reduce jetting pressure, and available Roots blower replaces air compressor machine to make source of the gas, thereby makes deduster not limited by the region, reduced investment, the pulse bag type dust collector of maintenance management ultralow pressure winding-up simply and easily.
Reduce the approach and the measure of jetting pressure:
1, strengthens the gas bag volume
The gas bag volume makes the pressure drop in the winding-up process very little after strengthening, and guarantees that the winding-up air capacity is constant substantially in the winding-up process, otherwise the air capacity of instantaneous winding-up is big, and compressed air had little time to replenish in moment, pressure drop in the gas bag is big, and the winding-up air capacity descends, and ash-removal effect degenerates.
Drag losses when 2, minimizing compressed air flows between injection hole from gas bag.
Drag losses is made up of local resistance loss and fricting resistance loss two parts.
Local resistance loss:
Fricting resistance loss:
In the formula: ζ-coefficient of partial resistance, λ-coefficient of frictional resistance, wind speed in the U-pipe
The D-dust diameter, r-air specific weight, g-acceleration of gravity
Find out from formula, local and fricting resistance loss all with square being directly proportional of wind speed, be directly proportional with resistance coefficient, if wind speed reduces four times, then drag losses (Z+R) reduces by 16 times, and reduce wind speed is to realize by the diameter that increases each parts, and therefore, the diameter that increases each parts is to reduce from gas bag main path and measure of drag losses when mobile between injection hole.
Reduce coefficient of partial resistance and also can not be ignored, because of gas feed place makes sharp edge into rounded edges or tubaeform, coefficient of partial resistance can be reduced to 0.1-0.15 from 0.5.Pulse valve, winding-up pipe and injection hole are exactly for this consideration, adopt the version of the same parts of long bag low pressure big pulse bag filter.
3, reduce jetting pressure, increase the winding-up air capacity
Reduce jetting pressure, the diameter that must increase pulse valve escape pipe, winding-up pipe and injection hole increases the winding-up air capacity.
Pulse valve is two diaphragm bypass structures, because the increasing of pulse valve escape pipe and big diaphragm diameter, the also corresponding increase of cavity diameter between then supporting with it Small diaphragm-piece, throttle orifice and two diaphragms, could guarantee the keying and the winding-up time of large and small diaphragm, for this reason, just be able to success through 110 repetition tests.
The purpose of this utility model realizes in the following manner: the pulse bag type dust collector that a kind of ultralow pressure that replaces air compressor machine to make source of the gas with Roots blower is jetted, this deduster is by gas bag, pulse valve, the winding-up pipe, injection hole, upper box, middle casing, air inlet, deflector, exhaust outlet, filter bag, ash bucket, unloading valve and pulse control instrument are formed, gas bag is arranged in the side of casing, pulse valve is arranged on it, the escape pipe of pulse valve links to each other with the winding-up pipe, there is injection hole winding-up pipe side, the winding-up pipe places upper box, in casing be attached thereto with being positioned under the upper box, deflector and filter bag are contained in the middle casing, under the middle casing ash bucket and unloading valve are arranged, air inlet and exhaust outlet are divided on ash bucket and the upper box, and pulse control instrument links to each other with pulse valve; Gas bag is square, and pulse valve is connected for the straight horizontal general formula with the winding-up pipe; The volume of gas bag is 0.27-1.6m
3, the caliber of giving vent to anger of pulse valve is 80-140mm, and winding-up pipe diameter is 90-160mm, and the injection hole diameter is 29-42mm.
When it was medium and small pulse bag type dust collector, its gas bag volume was 0.27-0.8m
3, the caliber of giving vent to anger of pulse valve is 80-100mm, winding-up pipe diameter 90-113mm, and the injection hole diameter is 29-35mm.
When it was large-scale pulse bag type dust collector, its gas bag volume was 0.8-1.6m
3, the caliber of giving vent to anger of pulse valve is 100-140mm, winding-up pipe diameter 114-160mm, and the injection hole diameter is 36-42mm.
Jetting pressure of the present utility model is reduced to 0.08MPa when following, replace air compressor machine to make source of the gas with Roots blower, its reduced investment, the maintenance management workload is little, therefore, it is air feed separately, but central gas supply does not exist and the shared source of the gas of other purposes yet, and supply gas pressure can not get guaranteeing, more can not have the source of the gas air feed, can not use pulse bag type dust collector; Design, make and use the restriction of the container that is not stressed; Do not have oil and water in the air of sending because of Roots blower, do not need oil, water filter; Pulse bag type dust collector is not subjected to territorial restrictions, and cold district can use in the same old way; Change former pulse valve square and be embedded bypass structure with the vertical horizontal positioned that is placed as of winding-up pipe, reduced by 90 ° of elbows, this has not only reduced drag losses, has also saved the space and has alleviated weight of equipment; In the past because of oil, water filtration is not clean, the throttle orifice that easily stops up pulse valve has not existed with existing edge such as sticking with paste filter bag, thereby operation troubles significantly reduces: after reducing jetting pressure, operating pressure is low, diaphragm applied force is little, the diaphragm life-span prolongs, and can reduce maintenance load, thereby improve reliability of operation; The utility model uses extensively, is applicable to the newly-built and reconstruction work of large, medium and small type pulse bag type dust collector.
The utility model content is described in detail in detail with reference to the accompanying drawings.
Fig. 1 is the utility model big pulse bag filter structural representation.
Fig. 2 is the medium and small pulse bag type dust collector structural representation of the utility model.
Fig. 3 is for making the long bag low pressure big pulse bag filter structural representation of source of the gas with air compressor machine.
Fig. 4 is for making medium and small pulse bag type dust collector (MC type) structural representation of source of the gas with air compressor machine.
With reference to Fig. 3, a kind of long bag low pressure big pulse bag filter of making source of the gas with air compressor machine 6, comprise gas bag 2, pulse valve 3, winding-up pipe 4, injection hole 5, upper box 7, middle casing 8, air inlet 9, deflector 10, exhaust outlet 11, filter bag 12, ash bucket 13, unloading valve 14, pulse control instrument 15 and oil and water filters 16, gas bag circle, the volume of gas bag are 0.253m
3, the escape pipe diameter of pulse valve is 80mm, and winding-up pipe diameter is 104mm, and the injection hole diameter is 22-28mm, and pulse valve is vertical placement with the winding-up pipe.
With reference to Fig. 1, make the big pulse bag filter of the ultralow pressure winding-up of source of the gas for replace air compressor machine with Roots blower, by gas bag, pulse valve, the winding-up pipe, injection hole, upper box, middle casing, air inlet, deflector, exhaust outlet, filter bag, ash bucket, unloading valve, pulse control instrument constitutes, gas bag is arranged in the side of casing, pulse valve is arranged on it, the escape pipe of pulse valve links to each other with the winding-up pipe, there is injection hole winding-up pipe side, the winding-up pipe places upper box, in casing be attached thereto with being positioned under the upper box, deflector and filter bag are contained in the middle casing, under the middle casing ash bucket and unloading valve are arranged, air inlet and exhaust outlet are divided on ash bucket and the upper box, and pulse control instrument links to each other with pulse valve; Gas bag is square, and pulse valve is connected for the straight horizontal general formula with the winding-up pipe; The volume of gas bag is 0.8-1.6m
3, the caliber of giving vent to anger of pulse valve is 100-140mm, and winding-up pipe diameter is 114-160mm, and the injection hole diameter is 36-42mm.It is inferior that the winding-up air capacity time increases to 32.4-45.2 standard liter/bag by 12.9 standards liter/bag, uses the Roots blower air feed, under the identical situation of other condition, and when pressure drops to 0.08MPa, identical ash-removal effect when obtaining former jetting pressure and being 0.25MPa.
Dusty gas enters middle lower box by air inlet 9, and indoor in the pre-separation that deflector 10 forms, bulky grain is separated under the inertia force effect, directly falls into ash bucket 13.Dusty gas upwards enters the filtering area of filling filter bag 12 along deflector 10, and dust is delayed at the filter bag outer surface, and the gas that has purified upwards enters upper box 7 through filter pocket mouths in filter bag, is discharged by exhaust outlet 11.
Dust when the filter bag surface constantly increases, and when causing equipment resistance to rise to setting value, pulse control instrument 15 sends signal, makes injection system work.At this moment, the air of being supplied with by Roots blower 1 sprays in filter bag 12 from the injection hole 5 of gas bag 2 orders on pulse valve 3 and winding-up pipe 4, under the effect of acceleration that filter bag expand to produce and back draught, break away from filter bag attached to the dust on the filter bag outer surface and fall into ash bucket 13, dust is discharged by conveying worm and unloading valve 14, the winding-up time once is 0.08 second, and after winding-up finished, filter bag recovered the filtration state immediately.
With reference to Fig. 4, a kind of medium and small pulse bag type dust collector (MC type) of making source of the gas with air compressor machine 6, comprise gas bag 2, pulse valve 3, winding-up pipe 4, injection hole 5, upper box 7, middle casing 8, air inlet 9, exhaust outlet 11, filter bag 12, ash bucket 13, unloading valve 14, pulse control instrument 15, profit filtration 16 and Venturi tube 17, gas bag is circular, and the volume of gas bag is 0.0122-0.081m
3, the escape pipe diameter of pulse valve is 20mm, and winding-up pipe diameter is 20mm, and the injection hole diameter is 6.4mm, and pulse valve is the single-iris structure of right angle tyoe.
With reference to Fig. 2, for replace with Roots blower air compressor machine do source of the gas the ultralow pressure winding-up in, small-sized pulse bag type dust collector, by gas bag, pulse valve, the winding-up pipe, injection hole, upper box, middle casing, air inlet, exhaust outlet, filter bag, ash bucket, unloading valve, pulse control instrument constitutes, gas bag is arranged in the side of casing, pulse valve is arranged on it, the escape pipe of pulse valve links to each other with the winding-up pipe, there is injection hole winding-up pipe side, the winding-up pipe places upper box, in casing be attached thereto with being positioned under the upper box, filter bag is contained in the middle casing, under the middle casing ash bucket and unloading valve are arranged, air inlet and exhaust outlet are divided on ash bucket and the upper box, and pulse control instrument links to each other with pulse valve; Gas bag is square, and pulse valve is connected for the straight horizontal general formula with the winding-up pipe; The volume of gas bag is 0.27-0.8m
3, the caliber of giving vent to anger of pulse valve is 80-100mm, and winding-up pipe diameter is 90-113mm, and the injection hole diameter is 29-35mm.It is inferior that the winding-up air capacity time increases to 12.1-20.1 standard liter/bag by 3.5 standards liter/bag, uses the Roots blower air feed, under the identical situation of other condition, and when pressure is reduced to 0.05MPa, identical ash-removal effect when obtaining former jetting pressure and being 0.7MPa.
Dusty gas enters middle lower box by air inlet 9, and bulky grain is separated under the gravity effect, directly falls into ash bucket 13.Dusty gas upwards enters the filtering area of filling filter bag 12, and dust is delayed at the filter bag outer surface, has purified gas and upwards enter upper box 7 through filter pocket mouths in filter bag, is discharged by exhaust outlet 11.
Dust when the filter bag surface constantly increases, and when causing equipment resistance to rise to setting value, pulse control instrument 15 sends signal, makes injection system work.At this moment, the air of being supplied with by Roots blower 1 sprays in filter bag 12 from the injection hole 5 of gas bag 2 orders on pulse valve 3 and winding-up pipe 4, under the effect of acceleration that filter bag expand to produce and back draught, break away from filter bag attached to the dust on the filter bag outer surface and fall into ash bucket 13, dust is discharged by unloading valve 14, the winding-up time once is 0.08 second, and after winding-up finished, filter bag recovered the filtration state immediately.
Claims (3)
1, the pulse bag type dust collector that a kind of ultralow pressure that replaces air compressor machine to make source of the gas with Roots blower is jetted, it is characterized in that this deduster is by gas bag, pulse valve, the winding-up pipe, injection hole, upper box, middle casing, air inlet, deflector, exhaust outlet, filter bag, ash bucket, unloading valve and pulse control instrument are formed, gas bag is arranged in the side of casing, pulse valve is arranged on it, the escape pipe of pulse valve links to each other with the winding-up pipe, there is injection hole winding-up pipe side, the winding-up pipe places upper box, in casing be attached thereto with being positioned under the upper box, deflector and filter bag are contained in the middle casing, under the middle casing ash bucket and unloading valve are arranged, air inlet and exhaust outlet are divided on ash bucket and the upper box, and pulse control instrument links to each other with pulse valve; Gas bag is square, and pulse valve is connected for the straight horizontal general formula with the winding-up pipe; The volume of gas bag is 0.27-1.6m
3, the caliber of giving vent to anger of pulse valve is 80-140mm, and winding-up pipe diameter is 90-160mm, and the injection hole diameter is 29-42mm.
2, deduster as claimed in claim 1, it is characterized in that when its during for medium and small pulse bag type dust collector, its gas bag volume is 0.27-0.8m
3, the caliber of giving vent to anger of pulse valve is 80-100mm, winding-up pipe diameter 90-113mm, and the injection hole diameter is 29-35mm.
3, deduster as claimed in claim 1, it is characterized in that when its during for large-scale pulse bag type dust collector, its gas bag volume is 0.8-1.6m
3, the caliber of giving vent to anger of pulse valve is 100-140mm, and winding-up pipe diameter is 114-160mm, and the injection hole diameter is 36-42mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00229335.8U CN2410052Y (en) | 2000-03-02 | 2000-03-02 | Extra-low pressure jetting pulse bag type dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00229335.8U CN2410052Y (en) | 2000-03-02 | 2000-03-02 | Extra-low pressure jetting pulse bag type dust remover |
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| Publication Number | Publication Date |
|---|---|
| CN2410052Y true CN2410052Y (en) | 2000-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00229335.8U Expired - Fee Related CN2410052Y (en) | 2000-03-02 | 2000-03-02 | Extra-low pressure jetting pulse bag type dust remover |
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| CN (1) | CN2410052Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384507C (en) * | 2006-03-14 | 2008-04-30 | 镇江华强电力设备厂 | Pulse self-cleaning type air filter |
| CN100544841C (en) * | 2004-04-02 | 2009-09-30 | 尼若芬有限公司 | Method and device for generating gas pulses |
| CN102527161A (en) * | 2011-12-13 | 2012-07-04 | 浙江海洋学院 | Dust collecting device |
| CN102941202A (en) * | 2012-11-27 | 2013-02-27 | 康力电梯股份有限公司 | Blow pipe for air compressor |
| CN103990335A (en) * | 2014-04-29 | 2014-08-20 | 江苏新中环保股份有限公司 | New bag dedusting deashing device |
| CN106422576A (en) * | 2016-12-16 | 2017-02-22 | 易能环境技术有限公司 | Low-pressure long-bag pulse-jet bag dust collector |
-
2000
- 2000-03-02 CN CN00229335.8U patent/CN2410052Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100544841C (en) * | 2004-04-02 | 2009-09-30 | 尼若芬有限公司 | Method and device for generating gas pulses |
| CN100384507C (en) * | 2006-03-14 | 2008-04-30 | 镇江华强电力设备厂 | Pulse self-cleaning type air filter |
| CN102527161A (en) * | 2011-12-13 | 2012-07-04 | 浙江海洋学院 | Dust collecting device |
| CN102941202A (en) * | 2012-11-27 | 2013-02-27 | 康力电梯股份有限公司 | Blow pipe for air compressor |
| CN103990335A (en) * | 2014-04-29 | 2014-08-20 | 江苏新中环保股份有限公司 | New bag dedusting deashing device |
| CN106422576A (en) * | 2016-12-16 | 2017-02-22 | 易能环境技术有限公司 | Low-pressure long-bag pulse-jet bag dust collector |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20001213 |