CN209967961U - Shunting pulse-jet air filter element and dust removal device adopting same - Google Patents
Shunting pulse-jet air filter element and dust removal device adopting same Download PDFInfo
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- CN209967961U CN209967961U CN201822249352.7U CN201822249352U CN209967961U CN 209967961 U CN209967961 U CN 209967961U CN 201822249352 U CN201822249352 U CN 201822249352U CN 209967961 U CN209967961 U CN 209967961U
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Abstract
The utility model relates to a dust filtration purifies technical field, discloses a shunting pulse-jet air filter and adopts dust collector of this filter core. The utility model provides a reposition of redundant personnel air filter core of spouting, includes the barrel of filter core, still includes the divertor, the main part of divertor is located the inside of barrel, the divertor is including supporting the ring holding surface outside the barrel top, is located support, honeycomb duct, the air jet of barrel, the support supports in ring holding surface below and parallel and encircle its axis setting with the axis of barrel, the air jet for encircle in the banding ring of the outside of support, the layering has set up the jet-propelled pipe of outside extension downwards on the pipe wall of honeycomb duct, the lower extreme of every jet-propelled pipe all communicates with the air jet. The utility model discloses a reducing of n-1 times pipe diameter evenly divide into n layer with nozzle spun air current, makes every layer of jetting air current pressure close or the same for deashing intensity is balanced, effectively avoids remaining behind the filter core regeneration in the inhomogeneous problem of filter core surface dust.
Description
Technical Field
The utility model relates to a dust filtration purifies technical field, specific theory discloses a shunting pulse-jet air filter, discloses the dust collector who adopts this filter core simultaneously.
Background
With the continuous expansion of mechanization and scale, a large amount of toxic and harmful dust generated in industries such as mines, electric power, buildings, machinery and the like causes serious harm to the health of workers. People's demand for dust concentration of operation environment is gradually increasing, and the demand for dust purification equipment is increasing day by day. The filtering dust removal technology has high dust collection efficiency and is widely applied to industrial processes of electric power, steel, cement, mines, paper pulp and the like. Along with the accumulation of dust on the filter element, the running resistance of the dust removal system can increase, and at the moment, the dust attached to the filter element needs to be subjected to ash removal treatment. The pulse blowing technology is widely adopted at present, and the pulse blowing dust removing device is simple in process and structure, good in dust removing effect and high in stability. However, when the ash is removed by pulse blowing, the blowing strength of each part of the filter cylinder is not balanced, so that the ash removal effect of the part of the filter element is poor, and a local 'dead zone' residual dust cake is generated. The existing dust cleaning device of the rotary wing dust beater directly blows a filter material through the dust beater arranged inside a filter element, and simultaneously rotates to realize the uniform dust cleaning inside the filter element.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, adapts to reality needs, provides a shunting pulse-jet air filter, discloses the dust collector who adopts this filter core simultaneously.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
the utility model provides a reposition of redundant personnel air filter core of spouting, includes the barrel of filter core, still includes the divertor, the main part of divertor is located the inside of barrel, the divertor is including supporting the ring holding surface outside the barrel top, is located support, honeycomb duct, the air jet of barrel, the support supports in ring holding surface below and parallel and encircle its axis setting with the axis of barrel, the air jet for encircle in the banding ring of the outside of support, the layering has set up the jet-propelled pipe of outside extension downwards on the pipe wall of honeycomb duct, the lower extreme of every jet-propelled pipe all communicates with the air jet.
The pipe diameter of the flow guide pipe gradually decreases in a step shape from top to bottom, and the upper end port of the air injection pipe is arranged at the pipe diameter reduction part of each step.
The air jet is composed of an upper arc plate, a lower arc plate and a middle connecting plate, the upper arc plate and the lower arc plate form a duckbilled structure which is opened outwards, and the lower end of each air jet pipe is communicated with the connecting plate of the duckbilled air jet.
The upper arc plate, the lower arc plate and the middle connecting plate are of relatively independent structures, an adjusting screw is arranged between the upper arc plate and the lower arc plate, the adjusting screw penetrates through the upper arc plate and the lower arc plate, and the size of the air jet opening is adjusted by adjusting the distance between the upper arc plate and the lower arc plate.
The honeycomb duct has n layers, wherein n is a natural number more than or equal to 2, and the radius of the honeycomb duct on the ith layer is Ri，
The air jet has n layers, and the inner diameter and the outer diameter of the two layers of upper arc plate and lower arc plate of the air jet at the ith layer are respectively of radius ri outer part，ri inside，
；
The height of the position of the ith layer of gas injection pipe is hi，
In the above formula, RnThe inner diameter of a flow guide pipe at the top of the flow guider is 1-4 times of the radius r of the nozzle pipe, D is the inner diameter of the filter element cylinder body, D is the distance between the outer side of the air jet and the filter element, H is the height of the filter element, i is the layer number of the duckbilled air jet from bottom to top, and is an integer not more than n;
n is calculated as the ratio of the height H of the filter element to the parameter s of the effective action range of the blowing, and is added with 1 after being integrated, namely n = int (H/s) +1, wherein int is an integration function.
The dust removal device comprises a dust removal device box body, wherein the filter element is arranged inside the dust removal device box body, a pulse valve is arranged outside the dust removal device and connected with a pulse controller, an air inlet of the pulse valve is connected with an air bag, an air outlet of the pulse valve is connected with an air injection guide pipe, and a nozzle at the tail end of the air injection guide pipe is arranged on the axis of the filter element and faces the circle center of a top circular ring supporting surface of the fluid director.
The utility model has the advantages that:
1. the utility model divides the air flow sprayed by the nozzle into n layers evenly by the gradual reduction of the pipe diameter for n-1 times, so that the pressure of the sprayed air flow on each layer is close to or the same, the ash removal strength is balanced, and the problem of uneven dust remained on the surface of the filter element after the filter element is regenerated is effectively avoided;
2. the n layers of longitudinal air flow are converted into the ash removal effect of radial blowing of the filter element by the guidance of the air jet, so that the ash removal effect is obviously enhanced;
3. a plurality of duckbill-shaped air nozzles are reasonably arranged in the filter element, so that air flow can impact all parts of the filter element simultaneously, and omnibearing dead-angle-free ash removal on the filter element is realized during blowing ash removal;
4. four screws are connected between the air injection upper plate and the air injection lower plate of each layer and used for adjusting the distance between the upper plate and the lower plate, so that the air outlet size and the air injection range can be adjusted, and the ash removal strength of each part can be further adjusted according to the field condition. Therefore, the filter element can effectively clean ash with balanced strength at all heights and directions, the problem that a large amount of dust is remained locally after ash cleaning can be effectively avoided, and the ash cleaning efficiency is high.
Drawings
Fig. 1 is a schematic perspective view of a flow-dividing type pulse-jet air filter element of the present invention;
fig. 2 is a schematic structural diagram of a dust removal device with the flow dividing type pulse jet air filter element in fig. 1.
The device comprises a dust removal device box body 1, a nozzle 2, an air injection guide pipe 3, a pulse valve 4, a pulse controller 5, an air bag 6, a filter element 7, a flow guider 8, a circular ring supporting surface 801, a support 802, an air injection port 803, an upper arc plate 8031, a lower arc plate 8032, a connecting plate 8033, a flow guide pipe 804, an air injection pipe 805 and an adjusting screw 9.
Detailed Description
The invention will be further described with reference to the following figures and examples:
example (b): see fig. 1, fig. 2.
The utility model discloses a reposition of redundant personnel formula pulse-jet air filter core, including the barrel 7 of filter core, the major structure of filter core can adopt the common structure among the prior art, does not have any details here, still includes divertor 8, the main part of divertor is located the inside of barrel 7, divertor 8 is including supporting ring holding surface 801 outside barrel 7 top, is located support 802, honeycomb duct 804, air jet 803 in barrel 7, support 802 supports in ring holding surface 801 below and parallel and encircle its axis setting with the axis of barrel 7, in this embodiment, has set up four rigid support 802, air jet 803 for encircle in the banding ring of the outside of support 802, the layering has set up the air jet 805 of downward outside extension on the pipe wall of honeycomb duct 804, and the lower extreme of every air jet 805 all communicates with air jet 803. According to the utility model discloses an air filter that the structure relates to, the air current that blows down from 8 tops of divertor is after the honeycomb duct water conservancy diversion, from jet-propelled pipe 805 to jet port 803 blowout, because jet port 803 is the banded ring structure, therefore spun air current can four-way disperse, is difficult to accumulate a department.
The pipe diameter of the flow guide pipe 804 gradually decreases from top to bottom in a step shape, and the upper end port of the gas injection pipe 805 is arranged at the pipe diameter reduction part of each step.
The air nozzle 803 consists of an upper arc plate 8031, a lower arc plate 8032 and a connecting plate 8033 in the middle, the upper arc plate 8031 and the lower arc plate 8032 form a duckbill-shaped structure which is opened outwards, and the lower end of each air nozzle 805 is communicated with the connecting plate 8033 of the duckbill-shaped air nozzle 803. Each layer of air nozzles are arranged in an expansion mode, namely are duckbill-shaped air nozzles, and the air injection range of the air nozzles is enlarged.
Adjusting screws 9 are arranged between the upper arc plate 8031 and the lower arc plate 8032, the connecting plates at the middle parts of the upper arc plate, the lower arc plate and the middle part are of relatively independent structures, the adjusting screws are arranged between the upper arc plate and the lower arc plate, the adjusting screws penetrate through the upper arc plate and the lower arc plate, the size of the air jet opening is adjusted by adjusting the distance between the upper arc plate and the lower arc plate, the air outlet size and the air jet range can be adjusted, and the ash removal strength of each part is further adjusted according to the field condition.
The honeycomb duct 804 has n layers in total, wherein n is a natural number more than or equal to 2, and the radius of the honeycomb duct 804 on the ith layer is Ri，
The gas nozzles 803 have n layers in total, and the inner diameters and the outer diameters of the two layers of the upper arc plate 8031 and the lower arc plate 8032 of the gas nozzle on the ith layer are respectively the radius ri outer part，ri inside，
The height of the position of the i-th layer gas injection pipe 803 is hi，
In the above formula, RnThe inner diameter of a flow guide pipe 804 at the top of the flow guider is 1-4 times of the radius r of a nozzle pipe, D is the inner diameter of a filter element cylinder body 7, D is the distance between the outer side of an air jet and the filter element, H is the height of the filter element, i is the layer number of duckbill-shaped air jet from bottom to top, and is an integer not more than n;
n is calculated as the ratio of the height H of the filter element to the parameter s of the effective action range of the blowing, and is added with 1 after being integrated, namely n = int (H/s) +1, wherein int is an integration function.
The utility model provides an adopt shunting spout dust collector of air filter core, including dust collector box 1, the filter core is adorned in the inside of dust collector box 1, dust collector 1 is provided with pulse valve 4 outward, pulse valve 4 connects pulse control appearance 5, and pulse valve 4's air inlet and gas bag 6 are connected, and pulse valve 4's gas outlet and jet-propelled pipe 3 are connected, and jet-propelled pipe 3 terminal nozzle 2 just faces the centre of a circle of the top ring holding surface 801 of divertor 8 on the axis of filter core 7.
In the example, assuming that the height H of an air filter element is 660mm, the inner diameter D =225mm, the effective action height range parameter s is 250mm, and the nozzle pipe is about 1 inch, the radius R of the air guide pipe at the topmost part of the flow guider is equal ton40mm is taken, and the distance d between the tail end of the air jet and the filter element is
The average velocity of the gas flow in the duct is v.
The air nozzle should be set to n = int [660/250 ]]+1=3 layers, the height of the first layer of duckbill-shaped air jet from the bottom of the filter element
The height of the second layer of duckbill-shaped air nozzles from the bottom of the filter element
The height of the third layer of duckbill-shaped air nozzles from the bottom of the filter elementFour screws used for adjusting the distance between the upper partition plate and the lower partition plate are arranged on each layer of duckbill-shaped air nozzle.
The radius of the airway at the 1 st layer is set asRadius of airway at layer 2Is arranged as
The radius of the airway at the 3 rd layer is R3＝Rn＝40mm。
Then, the airflow ejected by the nozzle firstly passes through the 3 rd layer of conduit, because the pipe diameter of the 2 nd layer of conduit becomes smaller, part of the airflow does not pass through the 2 nd layer of conduit, but is converted into radial airflow by the 3 rd layer of duckbilled air jet in a drainage way, the part of the airflow is ejected through the 3 rd layer of duckbilled air jet, and the gas flow rate is equal to that of the 3 rd layer of duckbilled air jet
And the screw of accessible regulation installation makes the upper and lower baffle interval of this layer of duckbilled air jet change, and then can adjust the deashing wind speed to can adjust the deashing intensity of this local position according to the on-the-spot condition. The height range for effectively cleaning the filter element is
The rest airflow passes through the layer 2 conduit, because the pipe diameter of the layer 1 conduit becomes small, part of the airflow does not pass through the layer 1 conduit, but is converted into radial airflow by the drainage of the layer 2 duckbilled air nozzles, the part of the airflow is ejected through the layer 2 duckbilled air nozzles, and the gas flow rate is
The ash removal wind speed can be adjusted by adjusting the distance between the two clapboards of the duckbill-shaped air nozzle layer through the mounted screws, so that the ash removal strength of the local part can be adjusted according to the field condition. The height range for effectively cleaning the filter element is
The rest airflow passes through the layer 1 conduit and is then converted into radial airflow by the layer 1 duckbill type air nozzle in a drainage way, the partial airflow is sprayed out through the layer 1 duckbill type air nozzle, and the gas flow rate isAnd the distance between the upper partition plate and the lower partition plate of the duckbilled air nozzle on the layer can be changed by adjusting the mounted screws, so that the ash removal air speed can be adjusted, and the ash removal strength of the part can be adjusted according to the field condition. The height range for realizing effective ash removal on the filter element is
In the ash cleaning process, the airflow sprayed out from the nozzle is divided into 3 layers due to 2 times of pipe diameter shock reduction, and the flow rate of each layer of the airflow is about 1676v m3The ash removal wind speed can be adjusted by the mounted screws, so that the ash removal intensity of each layer can be basically the same, and the problem of uneven ash removal of the filter membrane is effectively avoided; the drainage of the longitudinal air flow of 3 parts through the duckbill air jet is converted into the ash removal effect of radial blowing of the filter element, so that the ash removal effect is obviously enhanced; 3 layers of air nozzles are arranged in the filter element, the air flow basically impacts the filter element at the same time, and the height range for realizing effective ash removal is (0,660)]Therefore, all-round dead-angle-free ash removal of the filter element is realized, all-round effective ash removal with equal strength is obtained from the filter element, the problem that a large amount of dust is remained at the local part after ash removal is effectively avoided, and the ash removal efficiency is high.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a reposition of redundant personnel pulse-jet air filter, includes barrel (7) of filter core, its characterized in that: still include divertor (8), the main part of divertor is located the inside of barrel (7), divertor (8) are including supporting ring holding surface (801) outside barrel (7) top, are located support (802), honeycomb duct (804), air jet (803) of barrel (7), support (802) support in ring holding surface (801) below and parallel and encircle its axis setting with the axis of barrel (7), air jet (803) for encircle in the banding ring of the outside of support (802), the layering has set up air jet pipe (803) of downward outside extension on the pipe wall of honeycomb duct (804), and the lower extreme of every air jet pipe (805) all communicates with air jet (803).
2. The bypass-type pulse-jet air filter element of claim 1, wherein: the pipe diameter of the flow guide pipe (804) is gradually decreased in a step shape from top to bottom, and the upper end port of the gas injection pipe (805) is arranged at the pipe diameter reduction part of each step.
3. The bypass-type pulse-jet air filter element of claim 1, wherein: the air nozzle (803) comprises an upper arc plate (8031), a lower arc plate (8032) and a connecting plate (8033) at the middle part, the upper arc plate (8031) and the lower arc plate (8032) form a duckbilled structure which is opened outwards, and the lower end of each air nozzle (805) is communicated with the connecting plate (8033) of the duckbilled air nozzle (803).
4. The split-flow pulse jet air filter cartridge of claim 3, wherein: the upper arc plate (8031), the lower arc plate (8032) and the connecting plate (8033) in the middle are of relatively independent structures, an adjusting screw (9) is arranged between the upper arc plate (8031) and the lower arc plate (8032), the adjusting screw (9) penetrates through the upper arc plate and the lower arc plate, and the size of the air nozzle is adjusted by adjusting the distance between the upper arc plate and the lower arc plate.
5. The bypass-type pulse-jet air filter element of claim 1, wherein: the honeycomb duct (804) has n layers in total, wherein n is a natural number more than or equal to 2, and the radius of the honeycomb duct (804) on the ith layer is Ri，
The gas ejection ports (803) have n layers in total, iThe inner diameter and the outer diameter of two layers of upper arc plates (8031) and lower arc plates (8032) of the layer air jet are respectively the radius ri outer part，ri inside
The height of the position of the i-th layer of gas nozzles (803) is hi，
In the above formula, RnThe inner diameter of a flow guide pipe (804) at the top of the flow guider is 1-4 times of the radius r of the nozzle pipe, D is the inner diameter of the filter element cylinder body (7), D is the distance between the outer side of the air jet opening and the filter element, H is the height of the filter element, i is the number of layers where the duckbilled air jet openings are located from bottom to top, and is an integer not more than n;
n is calculated as the ratio of the height H of the filter element to the parameter s of the effective action range of the blowing, and is added with 1 after being integrated, namely n = int (H/s) +1, wherein int is an integration function.
6. A dust removing device using the divided-flow air ejection filter element according to claim 1, wherein: the dust removal device comprises a dust removal device box body (1), the filter element is arranged inside the dust removal device box body (1), a pulse valve (4) is arranged outside the dust removal device (1), the pulse valve (4) is connected with a pulse controller (5), an air inlet of the pulse valve (4) is connected with an air bag (6), an air outlet of the pulse valve (4) is connected with an air injection conduit (3), and a nozzle (2) at the tail end of the air injection conduit (3) is arranged on the axis of the filter element (7) and faces the circle center of a top circular ring supporting surface (801) of the fluid director (8).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437687A (en) * | 2020-05-12 | 2020-07-24 | 江苏峰峰鸿运环保科技发展有限公司 | Efficient electrostatic-bag composite dust collector and dust collection method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437687A (en) * | 2020-05-12 | 2020-07-24 | 江苏峰峰鸿运环保科技发展有限公司 | Efficient electrostatic-bag composite dust collector and dust collection method |
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