CN109692527B - Cyclone dust removal pipe and dust removal filtration equipment - Google Patents
Cyclone dust removal pipe and dust removal filtration equipment Download PDFInfo
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- CN109692527B CN109692527B CN201910095964.1A CN201910095964A CN109692527B CN 109692527 B CN109692527 B CN 109692527B CN 201910095964 A CN201910095964 A CN 201910095964A CN 109692527 B CN109692527 B CN 109692527B
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- pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Abstract
The embodiment of the invention provides a cyclone dust removal pipe and dust removal filter equipment, wherein the cyclone dust removal pipe comprises: one end of the pipe body is provided with an inlet for dust-containing gas to enter, and the other end of the pipe body is provided with an outlet; the pipe body airflow guide piece is arranged in the pipe body and used for guiding the dust-containing gas to flow in a cyclone way in the pipe body; the filter piece is arranged in the pipe body and is close to the outlet, a preset interval is formed between the outer side wall of the filter piece and the inner side wall of the pipe body to form a dust discharging channel for discharging separated dust, and an air outlet channel for discharging filtered gas is formed in the filter piece; the dust discharging channel and the air outlet channel are mutually isolated. The dust removal filtration equipment comprises a box body and a plurality of cyclone dust removal pipes, wherein the cyclone dust removal pipes are mutually fixed in the box body in parallel. The technical scheme provided by the embodiment of the invention can improve the dust-gas separation effect on the dust-containing gas, thereby improving the dust removal and filtration efficiency.
Description
Technical Field
The invention relates to the field of dust removal and filtration machinery, in particular to a cyclone dust removal pipe and dust removal and filtration equipment.
Background
With the continuous high-speed development of economy, the living environment is also continuously worsened, the problem of air pollution is more serious, dust particles are diffused in the air to aggravate the air pollution, and the physical health of human beings is affected.
The dust removal filtration equipment provided in the prior art separates large-particle dust from dust-containing gas, but the mode is complex in structure, and the separated air still has more small-particle substances, so that the air is not clean enough and the working efficiency is lower.
Disclosure of Invention
In view of the above problems, the present invention has been made to solve the above problems, or at least partially solve the above problems, a cyclone dust collecting tube and a dust collecting filter apparatus.
In one aspect, an embodiment of the present invention provides a cyclone dust collecting tube, including:
one end of the pipe body is provided with an inlet for dust-containing gas to enter, and the other end of the pipe body is provided with an outlet;
the pipe body airflow guide piece is arranged in the pipe body and used for guiding the dust-containing gas to flow in a cyclone way in the pipe body;
the filter piece is arranged in the pipe body and is close to the outlet, a preset interval is formed between the outer side wall of the filter piece and the inner side wall of the pipe body to form a dust discharging channel for discharging separated dust, and an air outlet channel for discharging filtered gas is formed in the filter piece; the dust discharging channel and the air outlet channel are mutually isolated.
Optionally, the filter element is coaxially disposed with the tube body.
Optionally, the filter element has a frusto-conical tubular shape, and the filter element has a gradually increasing cross-section in the direction of flow of the gas.
Optionally, the airflow guide is a guide vane fixedly arranged in the pipe body and close to the inlet. In another aspect, the embodiment of the present invention further provides a dust removing and filtering apparatus, which includes a plurality of cyclone dust removing pipes according to any one of the above embodiments, and further includes a case, in which the cyclone dust removing pipes are fixed in parallel with each other.
Optionally, an air inlet cavity, a dust throwing cavity and an air outlet cavity are formed in the box body;
the air inlet cavity is provided with a total air inlet, and is communicated with the total air inlet and the inlet of each pipe body at most;
the dust throwing cavity is communicated with the dust discharging channel at most;
the air outlet cavity is provided with a total air outlet, and is communicated with the total air outlet at most and the air outlet channel of each pipe body;
the air inlet cavity, the dust throwing cavity and the air outlet cavity are mutually isolated.
Optionally, the opening direction of the total air inlet is perpendicular to the axis direction of the pipe body.
Optionally, the tail end of the air outlet channel extends out from the tail end of the pipe body.
Optionally, a sand blocking plate is further arranged in the box body;
the sand blocking plate is connected with the filtering piece, the sand blocking plate and the tail end of the pipe body are provided with a distance, a plurality of air outlet through holes used for enabling air outlet channels of the pipe bodies to be communicated with the air outlet cavity are formed in the sand blocking plate, each side edge of the sand blocking plate is connected with the box body in a sealing mode, and the sand blocking plate and the inner wall of the box body enclose the air outlet cavity.
Optionally, a first partition board and a second partition board are further arranged in the box body;
the first partition plate is connected with the inlet of the pipe body, a plurality of air inlet through holes for communicating the inlet of each pipe body with the air inlet cavity are formed in the first partition plate, at least one side edge of the first partition plate is connected with the second partition plate in a sealing mode, and other side edges of the second partition plate are connected with the inner wall of the box body in a sealing mode along the direction away from the pipe body, so that the first partition plate, the second partition plate and the inner wall of the box body enclose the air inlet cavity;
at least one side edge on the second partition board is in sealing connection with the first partition board, and other side edges on the second partition board are in sealing connection with the inner wall of the box body, so that the second partition board, the inner wall of the box body and the sand baffle enclose a dust throwing cavity.
Optionally, the bottom wall of the air inlet cavity comprises a first guiding surface for guiding the dust-containing gas sucked from the inlet to slide into the tube body.
Optionally, the first guide surface is a slope gradually descending from an end far from the inlet of the pipe body to an end near the inlet of the pipe body;
or, the first guide surface is a cambered surface protruding along a direction away from the air inlet cavity.
Optionally, the dust throwing cavity is provided with a dust outlet.
Optionally, the bottom wall of the dust throwing cavity comprises a second guiding surface, and the second guiding surface is used for guiding dust discharged from the dust discharging channel to slide to the dust outlet.
Optionally, the second guiding surface is an inclined surface gradually descending from one end far away from the dust outlet to one end close to the dust outlet;
or, the second guide surface is a cambered surface protruding along a direction away from the dust throwing cavity.
According to the cyclone dust removing pipe and the dust removing and filtering device, the airflow guiding piece in the pipe body is used for guiding dust-containing gas to flow in the pipe body in a cyclone mode, the filtering piece is arranged at a position, close to the outlet, in the pipe body, a preset distance is reserved between the outer side wall of the filtering piece and the inner side wall of the pipe body, therefore, the dust-containing gas can generate larger centrifugal force under the scouring action of high-speed airflow, large-particle dust is larger than small-particle dust in mass and is discharged through the dust discharging channel between the filtering piece and the pipe body, the small-particle dust centrifugal force is smaller than the large-mass particle dust centrifugal force, the filtered gas is adsorbed and blocked by the filtering piece, the dust discharging channel and the air discharging channel are mutually isolated, dust and gas separation is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an internal perspective view of a pipe body provided in an embodiment of the present invention;
FIG. 2 is a perspective view I of a dust removing filter apparatus according to an embodiment of the present invention;
fig. 3 is a second perspective view of the dust removing and filtering apparatus according to the embodiment of the present invention.
Reference numerals:
10-a tube body; 30-an airflow guide;
40-a filter element; 50-a box body; 50 a-top wall;
50 b-a bottom wall; 50 c-sidewalls; 101-an inlet;
102-outlet; 11-an air inlet cavity; 12-a dust throwing cavity;
13-an air outlet cavity; 111-a total air inlet; 121-a dust outlet;
131-a total air outlet; 51-a sand baffle; 52-a first separator;
53-a second separator; a-a dust discharge channel; b-an air outlet channel;
m-a first guide surface; n-second guide surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.
Furthermore, the term "coupled" as used herein includes any direct or indirect connection. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices. The description hereinafter sets forth a preferred embodiment for practicing the invention, but is not intended to limit the scope of the invention, as the description is given for the purpose of illustrating the general principles of the invention. The scope of the invention is defined by the appended claims.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
FIG. 1 is an internal perspective view of a pipe body provided in an embodiment of the present invention; as shown in fig. 1, the present embodiment provides a dust removing and filtering apparatus, including: a tube body 10, an air flow guide 30 and a filter 40.
Wherein, one end of the tube body 10 forms an inlet 101 for dust-containing gas to enter, and the other end of the tube body 10 forms an outlet 102. Preferably, the tube body 10 may have a straight tube shape and may have a circular cross section, thereby minimizing the flow resistance of the air flow in the tube body 10 to ensure high-speed flushing of the air flow in the tube body 10. Of course, in other embodiments, the pipe body 10 may be an elbow pipe, and its cross section may be triangular, rectangular, hexagonal, etc., which is not limited in this embodiment.
In this embodiment, a power source may be provided on the outside of the tube 10 to drive the gas into the tube. In particular, the power source may be near the inlet 101, such that a positive pressure is generated at the inlet 101, or near the outlet 102, such that a negative pressure is generated at the outlet 102; in this way, the dust-laden gas can be driven into the tube 10. In this embodiment, the power source is preferably located outside the tube 10 and near the inlet 101, and the power source may be a fan for blowing the dust-containing gas into the tube 10. Alternatively, the power source may be disposed outside the filter element 40, proximate the outlet 102. Specifically, the suction driving member may be a vacuum source motor, where the vacuum source motor may be disposed at the inlet 101, and the vacuum source motor may include a motor, a motor driving shaft, and an impeller, where the impeller may be disposed in a sealed housing, and the pipeline is communicated with the interior of the sealed housing, and the motor driving shaft drives the impeller to rotate at a high speed, so that a negative pressure is generated in the sealed cavity, thereby generating a large suction force, and sucking an external air flow into the pipe body 10.
The airflow guide 30 is provided in the duct body 10 for guiding the dust-laden gas to cyclone flow in the duct body 10. The airflow guiding member 30 may be a guide vane fixedly arranged in the pipe body 10 and close to the inlet 101, for example, each blade edge of the guide vane may be fixedly connected with the inner wall of the pipe body 10, or the center of the guide vane is fixedly connected with the pipe body 10 through a connecting member, the airflow is flushed on the surface of the guide vane, the original flushing direction of the airflow is changed under the action of the guide vane, the airflow formed by the dust-containing gas is guided to flow in the pipe body 10 in a cyclone rotating manner, and the larger centrifugal force is generated when the mass is larger, so that the dust with larger particles in the dust-containing gas is closer to the inner wall of the pipe body 10, and the dust with smaller relative particles is closer to the center of the pipe body 10, therefore, the airflow closer to the center of the pipe body 10 is purer, and the dust particles of the airflow closer to the inner wall of the pipe body 10 are larger.
The filter element 40 is arranged in the pipe body 10 and is close to the outlet 102, a preset interval is formed between the outer side wall of the filter element 40 and the inner wall of the pipe body 10 to form a dust discharge channel a for discharging separated dust (the hollow arrow in fig. 1 is the dust discharge direction), and an air outlet channel b for discharging filtered gas (the solid arrow in fig. 1 is the air outlet direction) is formed in the filter element 40; the dust discharging channel a and the air outlet channel b are mutually isolated. Specifically, the filter 40 may be hollow and tubular and inserted into the pipe 10, the sidewall of the filter 40 is used for adsorbing dust, the filter 40 may include an organic adsorption material, for example, a nano adsorption material, and the gas is filtered again before being discharged from the pipe 10 through the adsorption of the organic adsorption material to the dust, so as to achieve the purpose of improving the dust filtering efficiency.
According to the cyclone dust removal pipe provided by the embodiment, dust-containing gas is guided to flow in the pipe body through the airflow guide piece in the pipe body, the filter piece is arranged at the position, close to the outlet, in the pipe body, a preset distance is reserved between the outer side wall of the filter piece and the inner side wall of the pipe body, therefore, dust-containing gas can generate larger centrifugal force under the scouring action of high-speed airflow, the mass of large-particle dust is larger than that of small-particle dust, the large-particle dust is thrown to the dust discharge channel between the filter piece and the pipe body to be discharged, the dust centrifugal force of small-particle dust with smaller mass is smaller than that of large-mass particle dust, so that the filtered gas is adsorbed and blocked by the filter piece, the dust discharge channel and the dust discharge channel are mutually isolated, and therefore dust gas separation is achieved.
In this embodiment, as shown in fig. 2, the filter 40 may be disposed coaxially with the tube body 10. Thus, the axis of the filter 40 coincides with the axis of the pipe body 10, and since the dust particles of the dust-containing gas are uniformly reduced in the radially inward direction of the pipe body 10 due to the centrifugal force generated by the dust-containing gas under the high-speed gas flow, the filter 40 is disposed coaxially with the pipe body 10, so that the dust-containing gas can be uniformly filtered in the circumferential direction of the pipe body 10.
Further, as shown in fig. 1, the filter member 40 may have a truncated cone shape, and the cross section of the filter member 40 gradually increases in the flow direction of the gas. The front end of the air flow direction is in a cambered surface shape so as to enable the air flow to smoothly pass through. The middle lower part of the filter element 40 is in a conical surface structure, so that dust in high-speed airflow of dust-containing gas is hit on the conical surface of the filter element 40 at a small angle, and compared with the situation that the dust is hit against the filter element 40, the dust is easy to be sprung out, and even if a small amount of dust is attached to the filter element 40, the dust is easy to be washed out by high-speed cyclone airflow, and finally the dust is difficult to attach to the filter element 40, so that ventilation capacity of the filter element 40 is not greatly reduced due to the fact that a large amount of dust is attached to the filter element 40 in a short period of time, namely fresh air filtering efficiency can be ensured in a longer service time, and requirements are met; the tapered filter 40 has a large filter area, and has relatively high filter performance and ventilation performance.
FIG. 2 is a perspective view I of a dust removing filter apparatus according to an embodiment of the present invention; fig. 3 is a second perspective view of the dust removing and filtering apparatus according to the embodiment of the present invention. Referring to fig. 2 to 3, the dust-removing filtering apparatus according to the present embodiment may further include a case 50, and the plurality of tubes 10 may be fixed in parallel to each other in the case 50. As shown in fig. 2 and fig. 3, 49 tubes 10 may be disposed in the case 50, and the 49 tubes 10 are arranged in 7 rows and 7 columns in the case 50, which, of course, can be understood that the number and arrangement density of the tubes 10 may be designed according to practical situations, and the embodiment is not limited herein. The interval between every two adjacent tubes 10 is equal, that is, a plurality of tubes 10 may be arranged in the case 50 at equal intervals, whereby the dust-containing gas can be introduced into each tube 10 as uniformly as possible.
A plurality of the tubes 10, which are parallel to each other, are disposed in the case 50 to form an array for more effectively and efficiently separating dust from a dust-containing gas.
In this embodiment, the case 50 may have a substantially square or rectangular parallelepiped shape, and includes a top wall 50a, a bottom wall 50b, and four side walls 50c connected between the top wall 50a and the bottom wall 50 b.
Further, as shown in fig. 2 and 3, an air inlet chamber 11, a dust throwing chamber 12 and an air outlet chamber 13 may be formed in the case 50.
The air intake chamber 11 may be provided with a total air intake 111, the air intake chamber 11 being in communication with the total air intake 111 at most and the inlet 101 of each tube 10. At most, it is understood that "at most" is only "in that the inlet chamber 11 is only in communication with the total inlet opening 111 and the inlet 101 of each tube 10, and that the dust-laden gas enters from the total inlet opening 111 and then enters into the tube 10 substantially entirely through the inlet 101 of each tube 10.
It should be noted that, in the present embodiment, the power source for driving the dust-containing gas into the pipe body may be located at the total air inlet 111, so as to blow the dust-containing gas into the air inlet cavity 11 through the total air inlet 111 and reach the pipe body 10.
Preferably, in the present embodiment, the total air inlet 111 may be disposed on a side wall 50c of the case 10, and the opening direction of the total air inlet 111 may be perpendicular to the axial direction of the tube 10. Compared with the mode that the total air inlet 111 is directly formed along the axial direction of the pipe body 10, the total air inlet 111 is formed along the axial direction of the pipe body 10, so that most air flows enter a plurality of pipe bodies 10 opposite to the total air inlet 111, and less air flows enter the pipe bodies 10 distributed at the edges, so that part of the pipe bodies 10 are overloaded, and part of the pipe bodies 10 hardly play a role. In this embodiment, the main air inlet 111 is opened along the direction perpendicular to the axis of the pipe body 10, so that the dust-containing gas entering the air inlet cavity 11 from the main air inlet 111 forms a vortex, and thus the gas flow can uniformly enter each pipe body 10, and each pipe body 10 can work under a reasonable and effective working load.
The dust throwing cavity 12 is communicated with the dust discharging channel a at most; the dust throwing cavity 12 is only communicated with the dust discharging channel a, and the dust-containing gas is thrown into the dust discharging channel a under the action of centrifugal force, and enters the dust throwing cavity 12 through the dust discharging barrel channel a.
The air outlet chamber 13 is provided with a total air outlet 131, and the air outlet chamber 13 is communicated with the total air outlet 131 at most and the air outlet channel b of each pipe body 10. The air outlet chamber 13 is only communicated with the total air outlet 131 and the air outlet channel b of each pipe body 10, and the air discharged from the air outlet channel b of the pipe body 10 is entirely introduced into the air outlet chamber 13 and can be discharged through the total air outlet 131.
The air inlet cavity 11, the dust throwing cavity 12 and the air outlet cavity 13 are mutually isolated, so that the separation of gas and dust can be ensured to the greatest extent.
In addition, as shown in fig. 1, the end of the air outlet passage b may protrude from the end of the duct body 10. I.e. the end of the air outlet channel b exceeds the end of the dust removal channel a.
In order to form the air inlet chamber 11, the dust throwing chamber 12 and the air outlet chamber 13 in the box 50, specifically, as shown in fig. 2 and 3, a sand blocking plate 51 may be further disposed in the box 50.
The sand blocking plate 51 can be connected with the filtering piece 40, the sand blocking plate 51 has a distance with the tail end of the pipe body 10, a plurality of air outlet through holes 511 for communicating the air outlet channel b of each pipe body 10 with the air outlet cavity 13 can be formed in the sand blocking plate 51, each side edge of the sand blocking plate 51 can be connected with the box body 50 in a sealing mode, and the sand blocking plate 51 and the inner wall of the box body enclose the air outlet cavity 13. Since the end of the air outlet passage b protrudes from the end of the pipe body 10, as long as the sand blocking plate 51 has a distance from the end of the pipe body 10, dust can be discharged from the dust discharge passage a from a predetermined distance, that is, the sand blocking plate 51 does not block the end of the dust discharge passage a.
The sand blocking plate 51 may be connected to the case 50 by gluing, integral molding, or the like in other non-detachable manners. Of course, in other embodiments, the sand blocking plate 51 may be detachably connected to the box 50, and a person skilled in the art may specifically design according to practical situations, so long as it is ensured that the sand blocking plate 51 can isolate the air outlet cavity 13 in the box 50, which is not described in detail in this embodiment.
As shown in fig. 2 and 3, a first partition plate 52 and a second partition plate 53 may be further provided in the case 50. The first partition plate 52 may be connected to the inlet 101 of the pipe body 10, and the first partition plate 52 may be provided with a plurality of air inlet through holes 521 for communicating the inlet 101 of each pipe body 10 with the air inlet cavity 11, at least one side edge of the first partition plate 52 is connected to the second partition plate 53 in a sealing manner, and other side edges of the second partition plate 53 are connected to the inner wall of the box body 50 in a sealing manner, so that the air inlet cavity 11 is defined by the first partition plate 52, the second partition plate 53 and the inner wall of the box body 50. At least one side edge of the second partition plate 53 is in sealing connection with the first partition plate 52, and other side edges of the second partition plate 53 are in sealing connection with the inner wall of the box body 50 along the direction away from the pipe body 10, so that the second partition plate 53, the inner wall of the box body 50 and the sand blocking plate 51 enclose the dust throwing cavity 12.
In the embodiment shown in fig. 2 and 3, only one side edge of the first partition plate 52 is in sealing connection with the second partition plate 53, the other side edges are in sealing connection with the inner wall of the case 50, one side edge of the second partition plate 53 is in sealing connection with the first partition plate 52, and the other side edges of the second partition plate 53 are in sealing connection with the inner wall of the case 50.
By arranging the first partition plate 52 and the second partition plate 53 in the box body, the air inlet cavity 11 and the dust throwing cavity 12 are separated from each other by the 50, at least one pair of side edges of the first partition plate 52 and the second partition plate 53 are connected together, and other side edges of the second partition plate 53 are connected with the box body 50 along the direction away from the first partition plate 52, so that the space of the dust throwing cavity 12 separated by the second partition plate 53 is larger, the space distribution of the dust throwing cavity 12 and the air inlet cavity 11 is more reasonable, and the space distribution of the dust throwing cavity 12 and the air inlet cavity 11 is more balanced.
Further, the dust removing cavity 12 may be further provided with a dust outlet 121. The dust outlet 121 may be located on a side wall 50c of the case 50 and near a position of the bottom wall 50b, and the opening direction of the dust outlet 121 may be parallel to the axial direction of the pipe body 10, which conforms to the flow direction of the air flow, so that dust can be discharged conveniently.
The dust filtered by the pipe bodies 10 is discharged into the dust throwing cavity 12 through the dust discharging channel a, each pipe body 10 is positioned in the dust throwing cavity 12, the dust passes through the gaps among the pipe bodies 10 and is thrown towards the bottom of the dust throwing cavity 12, and finally, the dust can be discharged out of the box body 50 through the dust outlet 121.
It will be appreciated that in other embodiments, the second partition 53 may be omitted, and the air inlet chamber 11 and the dust removal chamber 12 may be isolated by the first partition 52 only, and each side edge of the first partition 52 may be hermetically connected to the inner wall of the box 50. Thereby, the air inlet chamber 11 and the dust throwing chamber 12 can be separated.
Further, the bottom wall of the air intake chamber 11 may include a first guide surface M for guiding the dust-containing gas sucked from the inlet to slide into the duct body 10. Specifically, the first guide surface M is a slope gradually descending from one end far from the inlet a of the pipe body 10 to one end near the inlet a of the pipe body 10; alternatively, the first guide surface M is a curved surface protruding in a direction away from the air intake chamber 11. The first guide surface M may be formed by the first partition plate 52 or by the inner wall of the case 50, specifically, the first guide surface M may be formed by the first partition plate 52 if the first partition plate 52 directly forms the bottom wall of the air intake chamber 11, or by the inner wall of the case 50 if the first partition plate 52 does not form the bottom wall of the air intake chamber 11, depending on the installation position of the first partition plate 52. By providing the first guide surface M so that dust accumulated at the bottom of the air intake chamber 11 can flow toward the pipe body 10 along the first guide surface M (inclined surface or cambered surface), dust accumulation at the corners of the air intake chamber 11 can be effectively prevented.
Similarly, the bottom wall of the dust extraction chamber 12 comprises a second guiding surface N for guiding dust discharged from the dust discharge channel a to slide towards the dust outlet 121. The second guide surface N is a slope gradually descending from one end far from the dust outlet 121 to one end near the dust outlet 121; alternatively, the second guide surface N is a cambered surface protruding in a direction away from the dust extraction chamber 12. The second guide surface N is formed by a portion of the bottom wall 50c of the case 50. Also, by providing the second guide surface N, large particle dust accumulated at the bottom of the dust throwing chamber 12 can flow along the second guide surface N (inclined surface or cambered surface) to the dust outlet 121, and dust accumulation at each corner of the dust throwing chamber 12 can be effectively prevented.
Application scene:
the following is a comparative description of the dust removal filtration device provided by the present embodiment and the prior art, in conjunction with a specific application scenario:
in the field of military industry, the working environment of armored vehicles is often severe, the cyclone dust removal filter efficiency as a primary filter is not lower than 95% according to GJB5327-2004, and the concentration of sand and dust in the induced environment born by the armored vehicles in GJB282.3-1991 when the armored vehicles are used for formation is 2g/m 3 In the prior art, the ventilation rate is 300m 3 Under the condition of/h, the dust content after cyclone dust removal and filtration still reaches 100mg/m 3 I.e. the amount of dust entering the cabin of the armoured vehicle is 30g/h. To achieve 5mg/m in the cabin 3 The dust filter should be added to achieve a cleaning efficiency of at least 96.77% and a dust throughput of 30g/h.
For dust handling capacity of 30g/h, the existing filtering technology cannot improve working time significantly under the condition of size constraint. Therefore, it is necessary to improve the filtration efficiency of the primary cyclone. When the primary filtration efficiency reaches 99.5%, the amount of dust entering the cabin is reduced to 3g/h, so that the treatment capacity of the dust filter is reduced to 3g/h, and the working time of the dust filter is prolonged to about 2h under the limit concentration.
From the view of the particle size distribution of sand and dust in GJB282.3-1991, the dust removal efficiency is difficult to be further improved by the prior cyclone dust removal technology (the general efficiency is 95%) because the fine particle ratio is high and the prior cyclone dust removal technology mainly processes a large particle equation through wind power.
Experiments prove that the dust removing and filtering device provided by the embodiment can be at least applied to the above-mentioned scene, and the special design of the pipe body 10 is used for additionally arranging the section of filtering piece 40 in front of the outlet b of the pipe body 10, so that the air flow is filtered once again before entering and being discharged, and the purpose of improving the dust filtering efficiency is achieved. Meanwhile, because the air flow speed in the pipe body 10 is higher, dust is basically discharged along with the dust throwing air flow under the scouring of the air flow, so that dust is not accumulated on the filter element 40, and frequent replacement of the filter element 40 is avoided. Meanwhile, along with the continuous throwing-out of dust on the filter element 40, the resistance on the filter element 40 is not continuously increased, and the integral working efficiency of dust removal and filtration is not affected, so that a stable working state is formed.
Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality.
Those skilled in the art may combine and combine the features of the different embodiments or examples described in this specification and of the different embodiments or examples without contradiction.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The dust removal and filtration equipment is characterized by comprising a plurality of cyclone dust removal pipes and a box body, wherein the cyclone dust removal pipes are mutually fixed in the box body in parallel;
the cyclone dust removal pipe includes:
one end of the pipe body is provided with an inlet for dust-containing gas to enter, and the other end of the pipe body is provided with an outlet;
the pipe body airflow guide piece is arranged in the pipe body and used for guiding the dust-containing gas to flow in a cyclone way in the pipe body;
the filter piece is arranged in the pipe body and is close to the outlet, a preset interval is formed between the outer side wall of the filter piece and the inner side wall of the pipe body to form a dust discharging channel for discharging separated dust, and an air outlet channel for discharging filtered gas is formed in the filter piece; the dust discharging channel and the air outlet channel are mutually isolated;
an air inlet cavity, a dust throwing cavity and an air outlet cavity are formed in the box body;
the air inlet cavity is provided with a total air inlet, and is communicated with the total air inlet and the inlet of each pipe body at most;
the dust throwing cavity is communicated with the dust discharging channel at most;
the air outlet cavity is provided with a total air outlet, and is communicated with the total air outlet at most and the air outlet channel of each pipe body;
the air inlet cavity, the dust throwing cavity and the air outlet cavity are mutually isolated;
the tail end of the air outlet channel extends out of the tail end of the pipe body;
a sand blocking plate is also arranged in the box body;
the sand blocking plate is connected with the filtering piece, the sand blocking plate is spaced from the tail end of the pipe body, a plurality of air outlet through holes for communicating the air outlet channels of each pipe body with the air outlet cavity are formed in the sand blocking plate, each side edge of the sand blocking plate is connected with the box body in a sealing mode, and the sand blocking plate and the inner wall of the box body enclose the air outlet cavity;
the box body is also provided with a first baffle plate and a second baffle plate;
the first partition plate is connected with the inlets of the pipe bodies, a plurality of air inlet through holes for communicating the inlets of the pipe bodies with the air inlet cavities are formed in the first partition plate, at least one side edge of the first partition plate is connected with the second partition plate in a sealing mode, and other side edges of the second partition plate are connected with the inner wall of the box body in a sealing mode, so that the first partition plate, the second partition plate and the inner wall of the box body enclose the air inlet cavities;
at least one side edge of the second partition board is in sealing connection with the first partition board, and other side edges of the second partition board are in sealing connection with the inner wall of the box body along the direction away from the pipe body, so that the second partition board, the inner wall of the box body and the sand baffle form the dust throwing cavity;
the bottom wall of the air inlet cavity comprises a first guide surface which is used for guiding dust-containing gas sucked from the inlet to slide into the pipe body;
the first guide surface is a slope gradually descending from one end far from the inlet of the pipe body to one end close to the inlet of the pipe body;
or the first guide surface is a cambered surface protruding along the direction away from the air inlet cavity;
the dust throwing cavity is provided with a dust outlet;
the bottom wall of the dust throwing cavity comprises a second guide surface, and the second guide surface is used for guiding dust discharged from the dust discharging channel to slide to the dust outlet;
the second guide surface is an inclined surface gradually descending from one end far away from the dust outlet to one end close to the dust outlet;
or, the second guide surface is a cambered surface protruding along a direction away from the dust throwing cavity.
2. The dust removing filter apparatus of claim 1, wherein the filter member is disposed coaxially with the tube body.
3. The dust removing filter apparatus of claim 1, wherein the filter member has a truncated cone shape, and the cross section of the filter member gradually increases in the flow direction of the gas.
4. The dust extraction filter apparatus of claim 1, wherein the airflow guide is a vane fixedly disposed in the tube proximate the inlet.
5. The dust removal and filtration device according to claim 1, wherein the opening direction of the total air inlet is perpendicular to the axial direction of the pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910095964.1A CN109692527B (en) | 2019-01-31 | 2019-01-31 | Cyclone dust removal pipe and dust removal filtration equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910095964.1A CN109692527B (en) | 2019-01-31 | 2019-01-31 | Cyclone dust removal pipe and dust removal filtration equipment |
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| CN109692527A CN109692527A (en) | 2019-04-30 |
| CN109692527B true CN109692527B (en) | 2023-10-03 |
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| CN201910095964.1A Active CN109692527B (en) | 2019-01-31 | 2019-01-31 | Cyclone dust removal pipe and dust removal filtration equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110394348B (en) * | 2019-07-31 | 2021-12-28 | 徐州鼎诚环保科技有限公司 | High-efficient collection device of debris in computer host |
| CN113398667A (en) * | 2021-04-19 | 2021-09-17 | 华实融慧(北京)科技有限公司 | Centrifugal multi-tube dust removing and automatic dust discharging device |
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| CN109692527A (en) | 2019-04-30 |
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