CN214019743U - Novel blowing device of dust remover - Google Patents
Novel blowing device of dust remover Download PDFInfo
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- CN214019743U CN214019743U CN202022883415.1U CN202022883415U CN214019743U CN 214019743 U CN214019743 U CN 214019743U CN 202022883415 U CN202022883415 U CN 202022883415U CN 214019743 U CN214019743 U CN 214019743U
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Abstract
The utility model provides a novel dust remover jetting device, including the female pipe of jetting, upper portion flange plate, lower part flange plate, outer casing pipe, sealed gum cover, hollow pump shaft, the Laval spray tube, the bearing housing, sound wave vibration piece subassembly and accent to the ring flange, upper portion flange plate welding in the lower part of the female pipe of jetting. The lower connecting flange plate of the utility model is connected with the upper connecting flange plate at the lower part of the blowing main pipe by bolts, and adopts flange connection, thereby being convenient for disassembly, assembly, maintenance and repair; when compressed air enters from the upper part of the shell pipe, one path of compressed air enters an inner chamber of a gap between the shell pipe and the hollow pump shaft to drive the rotor blade and the bearing sleeve to rotate, and discharged air is uniformly distributed; the other path enters the interior of the Laval nozzle, and the flow velocity of a compressed air outlet is improved by utilizing the principle that the air velocity is improved by the contraction pipe and the expansion pipe, so that the aim of more uniform and farther blowing of the compressed air is fulfilled, and the problem of non-uniform air flow blowing of the original blowing pipe is solved.
Description
Technical Field
The utility model belongs to the technical field of the sack cleaner, especially, relate to a novel dust remover jetting device.
Background
In order to respond to the national environmental protection plan, the emission requirement can be met only by ultra-low modification of a dust collector of a thermal power plant, large-particle dust generated by burning raw coal powder in a boiler directly falls into an ash bucket after entering the dust collector, the rest fine dust enters a filtering area along with air flow, and clean gas filtered by a filter bag is discharged through a cloth bag air outlet. With the progress of the filtering working condition, when the accumulated dust on the outer surface of the filter bag reaches a certain amount, the dust cleaning control system (differential pressure, timing or manual) opens the electromagnetic pulse valve according to a set program to blow, and the dust on the filter bag is shaken off. In order to prevent the pressure drop of the cloth bag from being too large, the filter bag must be periodically cleaned. The amount of compressed air sprayed into the filter bag is determined by the air pressure in the air collecting pipe and the opening time of the electromagnetic pulse valve. The pressure reducing valve of the system indicates and controls the dust removing air pressure, the air pressure provided to the gas collecting pipe is 0.2-0.4 MPa, an injection pipe corresponds to the upper part of each filter bag, the lower injection pressure cannot inject the bottom of each filter bag, less dust on the surface of each filter bag is removed, the dust is continuously accumulated along with the filter bag body, the service life of each filter bag is shortened, the pressure difference in the dust remover is larger, and the dust removing effect of the dust remover is influenced. The working principle of the bag type dust collector is that dust-containing air enters each dust collecting chamber from an air inlet, and a cloth bag for filtering dust is arranged in each dust collecting chamber.
In addition, chinese patent publication is CN102600672A, the utility model discloses create the jetting device of name for a sack cleaner, including the discharge, install the manometer on the discharge, be equipped with the compressed air entry on the discharge, the discharge intercommunication has a plurality of jetting pipes, the pulse valve that control jetting pipe was admitted air is installed to the inlet end department of jetting pipe, the jetting pipe evenly is equipped with the nozzle of each sack one-to-one jetting of a plurality of and sack cleaner, the inlet end of nozzle is equipped with concentrates the spun spray surface with compressed air, the axis and the sack central line of nozzle align, install the valve that drains on the discharge. But current dust remover jetting device still has the jetting pipe and is the straight tube type, can't guarantee that the air current is even, jetting pipe simple structure, and compression air flow velocity is low can't reach the problem of the effect of deashing.
Therefore, a novel blowing device of the dust remover is very necessary.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a novel dust remover jetting device to solve current dust remover jetting device jetting pipe and be the straight tube type, can't guarantee that the air current is even, jetting pipe simple structure, compressed air flow rate is low can not reach the problem of deashing.
A novel dust remover blowing device comprises a blowing main pipe, an upper connecting flange, a lower connecting flange, a shell pipe, a sealing rubber sleeve, a hollow pump shaft, a Laval nozzle, a bearing sleeve, an acoustic vibration plate assembly and a direction-adjusting flange, wherein the upper connecting flange is welded at the lower part of the blowing main pipe; the upper connecting flange plate and the lower connecting flange plate are connected together through bolts; the shell pipe is welded on the lower part of the lower connecting flange; the sealing rubber sleeve is sleeved at the lower part of the outer surface of the outer shell pipe; the hollow pump shaft is arranged in the middle of the inside of the outer shell pipe; the Laval nozzle is integrally arranged inside the hollow pump shaft; the bearing sleeve is sleeved at the upper part of the outer surface of the hollow pump shaft; the sound wave vibration plate component is connected between the outer side of the hollow pump shaft and the inner side of the shell pipe through screws; the direction-adjusting flange plate is movably sleeved on the outer side of the shell pipe and is welded with the Laval nozzle.
Preferably, the outer surface of the bearing sleeve is connected with a rotating blade through a screw.
Preferably, the sound wave vibration piece assembly comprises a transverse supporting rod, a connecting plate and a vibration wave piece, wherein the transverse supporting rod is transversely in threaded connection with the middle position of the right side of the connecting plate; the vibration wave plate is respectively connected to the upper part and the lower part of the transverse supporting rod through screws.
Preferably, the rotating blade body is an arc-shaped stainless steel blade; the radian of the rotating blades is set between forty degrees and eighty degrees.
Preferably, a contraction pipe is arranged on the upper side inside the Laval nozzle; an expansion pipe is arranged on the lower side of the interior of the Laval nozzle.
Preferably, the contraction pipe and the expansion pipe are communicated.
Preferably, the vibration wave plate body adopts a stainless steel spring piece; the vibration wave plate is provided with a plurality of vibration wave plates.
Preferably, the outer shell pipe is a 316 stainless steel pipe; the inner diameter of the shell pipe is set to be 5mm to 8 mm; the thickness of the tube wall of the outer shell tube is set to be 2 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the lower connecting flange plate of the device is connected to the upper connecting flange plate at the lower part of the blowing main pipe by bolts, and is connected by adopting flanges, so that the device is convenient to disassemble, assemble, repair and maintain; when compressed air enters from the upper part of the shell pipe, one path of compressed air enters an inner chamber of a gap between the shell pipe and the hollow pump shaft to drive the rotor blade and the bearing sleeve to rotate, and discharged air is uniformly distributed; the other path enters the interior of the Laval nozzle, and the flow velocity of a compressed air outlet is improved by utilizing the principle that the airflow velocity is improved by the contraction tube and the expansion tube, so that the aim of more uniform and farther compressed air injection is fulfilled, and the problem of non-uniform airflow injection of the original injection tube is solved; when compressed air blows the vibration wave plate, the vibration wave plate generates vibration wave sound, so that the dust removal and air blowing effects are further achieved, a small air amount passes through the Laval nozzle, the blowing effect can be achieved, and the service life of the filter bag is prolonged; meanwhile, the consumption of compressed air of the dust remover is reduced, and the energy consumption is reduced; this device simple to operate can be applicable to the connection of the female pipe of different dust remover jetting, reaches accurate positioning, prevents the central deviation phenomenon that current jetting device appears, causes the filter bag to damage, and the condition of unable jetting filter bag takes place.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the top view of the present invention.
Fig. 3 is a schematic structural view of a cross-sectional state of the outer shell tube of the present invention.
Fig. 4 is a schematic structural view of the bearing housing according to the present invention in a top view.
Fig. 5 is a schematic structural view of the acoustic wave vibration plate assembly of the present invention.
In the figure:
1. blowing the mother pipe; 2. the upper part is connected with a flange plate; 3. the lower part is connected with a flange plate; 4. a housing tube; 5. sealing the rubber sleeve; 6. a hollow pump shaft; 7. a laval nozzle; 71. a shrink tube; 72. an expansion tube; 8. a bearing housing; 81. rotating the blades; 9. an acoustic wave vibrating plate assembly; 91. a transverse strut; 92. a connecting plate; 93. a vibration wave plate; 10. and (5) adjusting the direction of the flange plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in the accompanying drawings 1 to 5, the utility model provides a novel dust remover blowing device, which comprises a blowing main pipe 1, an upper connecting flange plate 2, a lower connecting flange plate 3, a shell pipe 4, a sealing rubber sleeve 5, a hollow pump shaft 6, a Laval nozzle 7, a bearing sleeve 8, an acoustic vibration plate assembly 9 and a direction-adjusting flange plate 10, wherein the upper connecting flange plate 2 is welded at the lower part of the blowing main pipe 1; the upper connecting flange 2 and the lower connecting flange 3 are connected together through bolts; the outer shell pipe 4 is welded at the lower part of the lower connecting flange 3; the sealing rubber sleeve 5 is sleeved at the lower part of the outer surface of the outer shell pipe 4; the hollow pump shaft 6 is arranged in the middle of the inside of the outer shell pipe 4; the Laval nozzle 7 is integrally arranged inside the hollow pump shaft 6; the bearing sleeve 8 is sleeved at the upper part of the outer surface of the hollow pump shaft 6; the sound wave vibrating piece assembly 9 is connected between the outer side of the hollow pump shaft 6 and the inner side of the shell pipe 4 through screws; the direction-adjusting flange plate 10 is movably sleeved on the outer side of the outer shell pipe 4 and is welded with the Laval nozzle 7.
As a preferred embodiment of the present invention, the outer surface of the bearing sleeve 8 is screwed with a rotating blade 81.
As a preferred embodiment of the present invention, the acoustic wave vibrating plate assembly 9 includes a cross bar 91, a connecting plate 92 and a vibrating plate 93, wherein the cross bar 91 is transversely screwed to the middle position of the right side of the connecting plate 92; the vibration wave plate 93 is respectively screwed on the upper part and the lower part of the cross support rod 91.
As a preferred embodiment of the present invention, the rotating blades 81 are arc-shaped stainless steel blades; the radian of the rotating blade 81 is set between forty degrees and eighty degrees.
As a preferred embodiment of the present invention, a contraction tube 71 is disposed on the upper side inside the laval nozzle 7; an expansion pipe 72 is arranged at the lower side of the interior of the Laval nozzle 7.
As a preferred embodiment of the present invention, the contraction tube 71 and the expansion tube 72 are connected to each other.
As a preferred embodiment of the present invention, the vibration wave plate 93 is a stainless steel spring plate; the plurality of vibration wave plates 93 are provided.
As a preferred embodiment of the present invention, the outer casing pipe 4 is a 316 stainless steel pipe; the inner diameter of the shell tube 4 is set to be 5mm to 8 mm; the thickness of the wall of the outer shell tube 4 is set to be 2 mm.
As a preferred embodiment of the present invention, the calculation formula of the linear velocity of the exhaust gas from the laval nozzle 7 is:
where Ve = exhaust velocity at the nozzle outlet; t = absolute temperature of input gas; r = ideal gas constant; m = gas molar mass; r = isentropic expansion factor; pe = absolute pressure of gas at the outlet of the lance; p = absolute pressure of input gas; the Ve value of the linear velocity of the gas discharged by the Laval nozzle 7 is set to be 1,700-2,900 m/s (3,800-6,500 mph); an example of using the above equation is as follows: assuming that the blowing main pipe 1 is connected with the exhaust end of the dust remover and used for exhausting gas: absolute pressure = 7.0MPa into the shrink tube 71 and exits the expansion tube 72 at absolute pressure = 0.1 MPa; at an absolute temperature = 3500K, with an isentropic expansion factor γ = 1.22 and a molar mass = 22 kg/kmol. Using the above formula calculation, exhaust velocity = 2802 m/s (2.80 km/s), which is consistent with the above typical values; however, in the practical application process, the unit type is different, the treatment mode of the dust remover is different, and the environment is determined according to the field working conditionAnd (4) performing calculation, improving the flow rate of compressed air, treating accumulated dust in a filter bag of the dust collector, and optimizing the dust cleaning effect.
Principle of operation
When the utility model is used, the lower connecting flange 3 of the device is connected with the upper connecting flange 2 at the lower part of the blowing main pipe 1 by bolts, and the flange connection is adopted, so that the disassembly, assembly, maintenance and repair are convenient; when compressed air enters from the upper part of the outer shell pipe 4, one path of compressed air enters an inner chamber of a gap between the outer shell pipe 4 and the hollow pump shaft 6 to drive the rotor blade 81 and the bearing sleeve 8 to rotate, and discharged air is uniformly distributed; the other path enters the interior of the Laval nozzle 7, and the flow velocity of a compressed air outlet is improved by utilizing the principle that the airflow velocity is improved by the contraction pipe 71 and the expansion pipe 72, so that the aim of more uniform and farther blowing of the compressed air is fulfilled, and the problem of non-uniform airflow blowing of the original blowing pipe is solved; when compressed air blows the vibration wave plate 93, the vibration wave plate 93 sends vibration wave sound, so that the dust removal and air blowing effects are further achieved, a small air amount passes through the Laval nozzle 7, the blowing effect can be achieved, and the service life of the filter bag is prolonged; meanwhile, the consumption of compressed air of the dust remover is reduced, and the energy consumption is reduced; this device simple to operate can be applicable to the connection of the female pipe 1 of different dust remover jetting, reaches accurate positioning, prevents the central deviation phenomenon that current jetting device appears, causes the filter bag to damage, and the condition of unable jetting filter bag takes place.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The novel blowing device for the dust remover is characterized by comprising a blowing main pipe (1), an upper connecting flange (2), a lower connecting flange (3), a shell pipe (4), a sealing rubber sleeve (5), a hollow pump shaft (6), a Laval nozzle (7), a bearing sleeve (8), an acoustic vibration plate assembly (9) and a direction-adjusting flange (10), wherein the upper connecting flange (2) is welded on the lower part of the blowing main pipe (1); the upper connecting flange (2) and the lower connecting flange (3) are connected together through bolts; the outer shell pipe (4) is welded on the lower part of the lower connecting flange plate (3); the sealing rubber sleeve (5) is sleeved at the lower part of the outer surface of the outer shell pipe (4); the hollow pump shaft (6) is arranged in the middle of the inner part of the outer shell pipe (4); the Laval nozzle (7) is integrally arranged inside the hollow pump shaft (6); the bearing sleeve (8) is sleeved at the upper part of the outer surface of the hollow pump shaft (6); the sound wave vibrating plate assembly (9) is connected between the outer side of the hollow pump shaft (6) and the inner side of the shell pipe (4) through screws; the direction-adjusting flange plate (10) is movably sleeved on the outer side of the outer shell pipe (4) and is welded with the Laval nozzle (7).
2. The new blowing device of precipitator according to claim 1, characterized in that the outer surface of the bearing housing (8) is screwed with rotating blades (81).
3. The novel blowing device of the dust collector as claimed in claim 1, wherein the acoustic wave vibrating plate assembly (9) comprises a cross-bar (91), a connecting plate (92) and a vibrating plate (93), the cross-bar (91) is transversely screwed at the right middle position of the connecting plate (92); the vibration wave plate (93) is respectively connected to the upper part and the lower part of the transverse supporting rod (91) through screws.
4. The new blowing device of dust collector as claimed in claim 2, wherein said rotating blades (81) are embodied by arc-shaped stainless steel blades; the radian of the rotating blade (81) is set to be between forty degrees and eighty degrees.
5. The new precipitator blowing device according to claim 1, characterized in that the Laval nozzle (7) is provided with a convergent tube (71) on the upper side of its interior; an expansion pipe (72) is arranged at the lower side in the Laval nozzle (7).
6. The new precipitator blowing device of claim 5, wherein the contraction pipe (71) and the expansion pipe (72) are disposed in communication.
7. The new blowing device of dust collector as claimed in claim 3, wherein said vibration wave plate (93) is a stainless steel spring plate; the plurality of the vibration wave plates (93) are arranged.
8. The new blowing device of dust collector as claimed in claim 1, wherein the outer shell tube (4) is made of a 316 stainless steel tube; the inner diameter of the shell pipe (4) is set to be 5mm to 8 mm; the thickness of the pipe wall of the outer shell pipe (4) is set to be 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022883415.1U CN214019743U (en) | 2020-12-05 | 2020-12-05 | Novel blowing device of dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022883415.1U CN214019743U (en) | 2020-12-05 | 2020-12-05 | Novel blowing device of dust remover |
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| Publication Number | Publication Date |
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| CN214019743U true CN214019743U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022883415.1U Active CN214019743U (en) | 2020-12-05 | 2020-12-05 | Novel blowing device of dust remover |
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| CN (1) | CN214019743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318021A (en) * | 2022-10-17 | 2022-11-11 | 江苏申隆锌业有限公司 | Bag type dust collector for collecting zinc powder |
-
2020
- 2020-12-05 CN CN202022883415.1U patent/CN214019743U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318021A (en) * | 2022-10-17 | 2022-11-11 | 江苏申隆锌业有限公司 | Bag type dust collector for collecting zinc powder |
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